diff options
Diffstat (limited to 'target/linux/goldfish/patches-2.6.30')
49 files changed, 16036 insertions, 0 deletions
diff --git a/target/linux/goldfish/patches-2.6.30/0042-ARM-Make-low-level-printk-work.patch b/target/linux/goldfish/patches-2.6.30/0042-ARM-Make-low-level-printk-work.patch new file mode 100644 index 0000000000..6a74a3bf6c --- /dev/null +++ b/target/linux/goldfish/patches-2.6.30/0042-ARM-Make-low-level-printk-work.patch @@ -0,0 +1,36 @@ +From 0c61b75f9da1a0889959a0f9bd0b8b63f936ddf3 Mon Sep 17 00:00:00 2001 +From: Tony Lindgren <tony@atomide.com> +Date: Mon, 9 May 2005 14:10:26 -0700 +Subject: [PATCH 042/134] ARM: Make low-level printk work + +Makes low-level printk work. + +Signed-off-by: Tony Lindgren <tony@atomide.com> +--- + kernel/printk.c | 8 ++++++++ + 1 files changed, 8 insertions(+), 0 deletions(-) + +--- a/kernel/printk.c ++++ b/kernel/printk.c +@@ -45,6 +45,10 @@ void asmlinkage __attribute__((weak)) ea + + #define __LOG_BUF_LEN (1 << CONFIG_LOG_BUF_SHIFT) + ++#ifdef CONFIG_DEBUG_LL ++extern void printascii(char *); ++#endif ++ + /* printk's without a loglevel use this.. */ + #define DEFAULT_MESSAGE_LOGLEVEL 4 /* KERN_WARNING */ + +@@ -687,6 +691,10 @@ asmlinkage int vprintk(const char *fmt, + sizeof(printk_buf) - printed_len, fmt, args); + + ++#ifdef CONFIG_DEBUG_LL ++ printascii(printk_buf); ++#endif ++ + /* + * Copy the output into log_buf. If the caller didn't provide + * appropriate log level tags, we insert them here diff --git a/target/linux/goldfish/patches-2.6.30/0052-lowmemorykiller-Only-iterate-over-process-list-when.patch b/target/linux/goldfish/patches-2.6.30/0052-lowmemorykiller-Only-iterate-over-process-list-when.patch new file mode 100644 index 0000000000..aeab05e86c --- /dev/null +++ b/target/linux/goldfish/patches-2.6.30/0052-lowmemorykiller-Only-iterate-over-process-list-when.patch @@ -0,0 +1,71 @@ +From 3742e6638bdb7325c6432e2a145ad985ee47d052 Mon Sep 17 00:00:00 2001 +From: =?utf-8?q?Arve=20Hj=C3=B8nnev=C3=A5g?= <arve@android.com> +Date: Mon, 26 Jan 2009 19:13:47 -0800 +Subject: [PATCH 052/134] lowmemorykiller: Only iterate over process list when needed. +MIME-Version: 1.0 +Content-Type: text/plain; charset=utf-8 +Content-Transfer-Encoding: 8bit + +Use NR_ACTIVE plus NR_INACTIVE as a size estimate for our fake cache +instead the sum of rss. Neither method is accurate. + +Also skip the process scan, if the amount of memory available is above +the largest threshold set. + +Signed-off-by: Arve HjønnevÃ¥g <arve@android.com> +--- + drivers/staging/android/lowmemorykiller.c | 35 +++++++++++++++++----------- + 1 files changed, 21 insertions(+), 14 deletions(-) + +diff --git a/drivers/staging/android/lowmemorykiller.c b/drivers/staging/android/lowmemorykiller.c +index 3715d56..b9a2e84 100644 +--- a/drivers/staging/android/lowmemorykiller.c ++++ b/drivers/staging/android/lowmemorykiller.c +@@ -71,23 +71,30 @@ static int lowmem_shrink(int nr_to_scan, gfp_t gfp_mask) + } + if(nr_to_scan > 0) + lowmem_print(3, "lowmem_shrink %d, %x, ofree %d, ma %d\n", nr_to_scan, gfp_mask, other_free, min_adj); ++ rem = global_page_state(NR_ACTIVE) + global_page_state(NR_INACTIVE); ++ if (nr_to_scan <= 0 || min_adj == OOM_ADJUST_MAX + 1) { ++ lowmem_print(5, "lowmem_shrink %d, %x, return %d\n", nr_to_scan, gfp_mask, rem); ++ return rem; ++ } ++ + read_lock(&tasklist_lock); + for_each_process(p) { +- if(p->oomkilladj >= 0 && p->mm) { +- tasksize = get_mm_rss(p->mm); +- if(nr_to_scan > 0 && tasksize > 0 && p->oomkilladj >= min_adj) { +- if(selected == NULL || +- p->oomkilladj > selected->oomkilladj || +- (p->oomkilladj == selected->oomkilladj && +- tasksize > selected_tasksize)) { +- selected = p; +- selected_tasksize = tasksize; +- lowmem_print(2, "select %d (%s), adj %d, size %d, to kill\n", +- p->pid, p->comm, p->oomkilladj, tasksize); +- } +- } +- rem += tasksize; ++ if (p->oomkilladj < min_adj || !p->mm) ++ continue; ++ tasksize = get_mm_rss(p->mm); ++ if (tasksize <= 0) ++ continue; ++ if (selected) { ++ if (p->oomkilladj < selected->oomkilladj) ++ continue; ++ if (p->oomkilladj == selected->oomkilladj && ++ tasksize <= selected_tasksize) ++ continue; + } ++ selected = p; ++ selected_tasksize = tasksize; ++ lowmem_print(2, "select %d (%s), adj %d, size %d, to kill\n", ++ p->pid, p->comm, p->oomkilladj, tasksize); + } + if(selected != NULL) { + lowmem_print(1, "send sigkill to %d (%s), adj %d, size %d\n", +-- +1.6.2 + diff --git a/target/linux/goldfish/patches-2.6.30/0053-lowmemorykiller-Don-t-count-free-space-unless-it-me.patch b/target/linux/goldfish/patches-2.6.30/0053-lowmemorykiller-Don-t-count-free-space-unless-it-me.patch new file mode 100644 index 0000000000..0a8e83a828 --- /dev/null +++ b/target/linux/goldfish/patches-2.6.30/0053-lowmemorykiller-Don-t-count-free-space-unless-it-me.patch @@ -0,0 +1,53 @@ +From f82da10dcae73652a6f0355e4398b4be1af17e6b Mon Sep 17 00:00:00 2001 +From: =?utf-8?q?Arve=20Hj=C3=B8nnev=C3=A5g?= <arve@android.com> +Date: Mon, 26 Jan 2009 19:22:19 -0800 +Subject: [PATCH 053/134] lowmemorykiller: Don't count free space unless it meets the specified limit by itself +MIME-Version: 1.0 +Content-Type: text/plain; charset=utf-8 +Content-Transfer-Encoding: 8bit + +This allows processes to be killed when the kernel evict cache pages in +an attempt to get more contiguous free memory. + +Signed-off-by: Arve HjønnevÃ¥g <arve@android.com> +--- + drivers/staging/android/lowmemorykiller.c | 13 +++++++++---- + 1 files changed, 9 insertions(+), 4 deletions(-) + +diff --git a/drivers/staging/android/lowmemorykiller.c b/drivers/staging/android/lowmemorykiller.c +index b9a2e84..b2ab7fa 100644 +--- a/drivers/staging/android/lowmemorykiller.c ++++ b/drivers/staging/android/lowmemorykiller.c +@@ -58,20 +58,25 @@ static int lowmem_shrink(int nr_to_scan, gfp_t gfp_mask) + int min_adj = OOM_ADJUST_MAX + 1; + int selected_tasksize = 0; + int array_size = ARRAY_SIZE(lowmem_adj); +- int other_free = global_page_state(NR_FREE_PAGES) + global_page_state(NR_FILE_PAGES); ++ int other_free = global_page_state(NR_FREE_PAGES); ++ int other_file = global_page_state(NR_FILE_PAGES); + if(lowmem_adj_size < array_size) + array_size = lowmem_adj_size; + if(lowmem_minfree_size < array_size) + array_size = lowmem_minfree_size; + for(i = 0; i < array_size; i++) { +- if(other_free < lowmem_minfree[i]) { ++ if (other_free < lowmem_minfree[i] && ++ other_file < lowmem_minfree[i]) { + min_adj = lowmem_adj[i]; + break; + } + } + if(nr_to_scan > 0) +- lowmem_print(3, "lowmem_shrink %d, %x, ofree %d, ma %d\n", nr_to_scan, gfp_mask, other_free, min_adj); +- rem = global_page_state(NR_ACTIVE) + global_page_state(NR_INACTIVE); ++ lowmem_print(3, "lowmem_shrink %d, %x, ofree %d %d, ma %d\n", nr_to_scan, gfp_mask, other_free, other_file, min_adj); ++ rem = global_page_state(NR_ACTIVE_ANON) + ++ global_page_state(NR_ACTIVE_FILE) + ++ global_page_state(NR_INACTIVE_ANON) + ++ global_page_state(NR_INACTIVE_FILE); + if (nr_to_scan <= 0 || min_adj == OOM_ADJUST_MAX + 1) { + lowmem_print(5, "lowmem_shrink %d, %x, return %d\n", nr_to_scan, gfp_mask, rem); + return rem; +-- +1.6.2 + diff --git a/target/linux/goldfish/patches-2.6.30/0054-timed_gpio-Separate-timed_output-class-into-a-separ.patch b/target/linux/goldfish/patches-2.6.30/0054-timed_gpio-Separate-timed_output-class-into-a-separ.patch new file mode 100644 index 0000000000..fac656e0cb --- /dev/null +++ b/target/linux/goldfish/patches-2.6.30/0054-timed_gpio-Separate-timed_output-class-into-a-separ.patch @@ -0,0 +1,432 @@ +From e4c9c5d7d6d5deb124083678fe5d839d3133f60a Mon Sep 17 00:00:00 2001 +From: Mike Lockwood <lockwood@android.com> +Date: Mon, 12 Jan 2009 13:25:05 -0500 +Subject: [PATCH 054/134] timed_gpio: Separate timed_output class into a separate driver. +MIME-Version: 1.0 +Content-Type: text/plain; charset=utf-8 +Content-Transfer-Encoding: 8bit + +Signed-off-by: Mike Lockwood <lockwood@android.com> +Signed-off-by: Arve HjønnevÃ¥g <arve@android.com> +--- + drivers/staging/android/Kconfig | 6 ++- + drivers/staging/android/Makefile | 1 + + drivers/staging/android/timed_gpio.c | 98 +++++++++++-------------- + drivers/staging/android/timed_gpio.h | 4 +- + drivers/staging/android/timed_output.c | 121 ++++++++++++++++++++++++++++++++ + drivers/staging/android/timed_output.h | 37 ++++++++++ + 6 files changed, 210 insertions(+), 57 deletions(-) + create mode 100644 drivers/staging/android/timed_output.c + create mode 100644 drivers/staging/android/timed_output.h + +diff --git a/drivers/staging/android/Kconfig b/drivers/staging/android/Kconfig +index 604bd1e..1784508 100644 +--- a/drivers/staging/android/Kconfig ++++ b/drivers/staging/android/Kconfig +@@ -73,9 +73,13 @@ config ANDROID_RAM_CONSOLE_EARLY_SIZE + default 0 + depends on ANDROID_RAM_CONSOLE_EARLY_INIT + ++config ANDROID_TIMED_OUTPUT ++ bool "Timed output class driver" ++ default y ++ + config ANDROID_TIMED_GPIO + tristate "Android timed gpio driver" +- depends on GENERIC_GPIO ++ depends on GENERIC_GPIO && ANDROID_TIMED_OUTPUT + default n + + config ANDROID_LOW_MEMORY_KILLER +diff --git a/drivers/staging/android/Makefile b/drivers/staging/android/Makefile +index 95209d6..8e057e6 100644 +--- a/drivers/staging/android/Makefile ++++ b/drivers/staging/android/Makefile +@@ -1,5 +1,6 @@ + obj-$(CONFIG_ANDROID_BINDER_IPC) += binder.o + obj-$(CONFIG_ANDROID_LOGGER) += logger.o + obj-$(CONFIG_ANDROID_RAM_CONSOLE) += ram_console.o ++obj-$(CONFIG_ANDROID_TIMED_OUTPUT) += timed_output.o + obj-$(CONFIG_ANDROID_TIMED_GPIO) += timed_gpio.o + obj-$(CONFIG_ANDROID_LOW_MEMORY_KILLER) += lowmemorykiller.o +diff --git a/drivers/staging/android/timed_gpio.c b/drivers/staging/android/timed_gpio.c +index 33daff0..be7cdaa 100644 +--- a/drivers/staging/android/timed_gpio.c ++++ b/drivers/staging/android/timed_gpio.c +@@ -20,13 +20,12 @@ + #include <linux/err.h> + #include <linux/gpio.h> + ++#include "timed_output.h" + #include "timed_gpio.h" + + +-static struct class *timed_gpio_class; +- + struct timed_gpio_data { +- struct device *dev; ++ struct timed_output_dev dev; + struct hrtimer timer; + spinlock_t lock; + unsigned gpio; +@@ -36,70 +35,62 @@ struct timed_gpio_data { + + static enum hrtimer_restart gpio_timer_func(struct hrtimer *timer) + { +- struct timed_gpio_data *gpio_data = container_of(timer, struct timed_gpio_data, timer); ++ struct timed_gpio_data *data = ++ container_of(timer, struct timed_gpio_data, timer); + +- gpio_direction_output(gpio_data->gpio, gpio_data->active_low ? 1 : 0); ++ gpio_direction_output(data->gpio, data->active_low ? 1 : 0); + return HRTIMER_NORESTART; + } + +-static ssize_t gpio_enable_show(struct device *dev, struct device_attribute *attr, char *buf) ++static int gpio_get_time(struct timed_output_dev *dev) + { +- struct timed_gpio_data *gpio_data = dev_get_drvdata(dev); +- int remaining; ++ struct timed_gpio_data *data = ++ container_of(dev, struct timed_gpio_data, dev); + +- if (hrtimer_active(&gpio_data->timer)) { +- ktime_t r = hrtimer_get_remaining(&gpio_data->timer); ++ if (hrtimer_active(&data->timer)) { ++ ktime_t r = hrtimer_get_remaining(&data->timer); + struct timeval t = ktime_to_timeval(r); +- remaining = t.tv_sec * 1000 + t.tv_usec / 1000; ++ return t.tv_sec * 1000 + t.tv_usec / 1000; + } else +- remaining = 0; +- +- return sprintf(buf, "%d\n", remaining); ++ return 0; + } + +-static ssize_t gpio_enable_store( +- struct device *dev, struct device_attribute *attr, +- const char *buf, size_t size) ++static void gpio_enable(struct timed_output_dev *dev, int value) + { +- struct timed_gpio_data *gpio_data = dev_get_drvdata(dev); +- int value; ++ struct timed_gpio_data *data = ++ container_of(dev, struct timed_gpio_data, dev); + unsigned long flags; + +- sscanf(buf, "%d", &value); +- +- spin_lock_irqsave(&gpio_data->lock, flags); ++ spin_lock_irqsave(&data->lock, flags); + + /* cancel previous timer and set GPIO according to value */ +- hrtimer_cancel(&gpio_data->timer); +- gpio_direction_output(gpio_data->gpio, gpio_data->active_low ? !value : !!value); ++ hrtimer_cancel(&data->timer); ++ gpio_direction_output(data->gpio, data->active_low ? !value : !!value); + + if (value > 0) { +- if (value > gpio_data->max_timeout) +- value = gpio_data->max_timeout; ++ if (value > data->max_timeout) ++ value = data->max_timeout; + +- hrtimer_start(&gpio_data->timer, +- ktime_set(value / 1000, (value % 1000) * 1000000), +- HRTIMER_MODE_REL); ++ hrtimer_start(&data->timer, ++ ktime_set(value / 1000, (value % 1000) * 1000000), ++ HRTIMER_MODE_REL); + } + +- spin_unlock_irqrestore(&gpio_data->lock, flags); +- +- return size; ++ spin_unlock_irqrestore(&data->lock, flags); + } + +-static DEVICE_ATTR(enable, S_IRUGO | S_IWUSR, gpio_enable_show, gpio_enable_store); +- + static int timed_gpio_probe(struct platform_device *pdev) + { + struct timed_gpio_platform_data *pdata = pdev->dev.platform_data; + struct timed_gpio *cur_gpio; + struct timed_gpio_data *gpio_data, *gpio_dat; +- int i, ret = 0; ++ int i, j, ret = 0; + + if (!pdata) + return -EBUSY; + +- gpio_data = kzalloc(sizeof(struct timed_gpio_data) * pdata->num_gpios, GFP_KERNEL); ++ gpio_data = kzalloc(sizeof(struct timed_gpio_data) * pdata->num_gpios, ++ GFP_KERNEL); + if (!gpio_data) + return -ENOMEM; + +@@ -107,23 +98,26 @@ static int timed_gpio_probe(struct platform_device *pdev) + cur_gpio = &pdata->gpios[i]; + gpio_dat = &gpio_data[i]; + +- hrtimer_init(&gpio_dat->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL); ++ hrtimer_init(&gpio_dat->timer, CLOCK_MONOTONIC, ++ HRTIMER_MODE_REL); + gpio_dat->timer.function = gpio_timer_func; + spin_lock_init(&gpio_dat->lock); + ++ gpio_dat->dev.name = cur_gpio->name; ++ gpio_dat->dev.get_time = gpio_get_time; ++ gpio_dat->dev.enable = gpio_enable; ++ ret = timed_output_dev_register(&gpio_dat->dev); ++ if (ret < 0) { ++ for (j = 0; j < i; j++) ++ timed_output_dev_unregister(&gpio_data[i].dev); ++ kfree(gpio_data); ++ return ret; ++ } ++ + gpio_dat->gpio = cur_gpio->gpio; + gpio_dat->max_timeout = cur_gpio->max_timeout; + gpio_dat->active_low = cur_gpio->active_low; + gpio_direction_output(gpio_dat->gpio, gpio_dat->active_low); +- +- gpio_dat->dev = device_create(timed_gpio_class, &pdev->dev, 0, "%s", cur_gpio->name); +- if (unlikely(IS_ERR(gpio_dat->dev))) +- return PTR_ERR(gpio_dat->dev); +- +- dev_set_drvdata(gpio_dat->dev, gpio_dat); +- ret = device_create_file(gpio_dat->dev, &dev_attr_enable); +- if (ret) +- return ret; + } + + platform_set_drvdata(pdev, gpio_data); +@@ -137,10 +131,8 @@ static int timed_gpio_remove(struct platform_device *pdev) + struct timed_gpio_data *gpio_data = platform_get_drvdata(pdev); + int i; + +- for (i = 0; i < pdata->num_gpios; i++) { +- device_remove_file(gpio_data[i].dev, &dev_attr_enable); +- device_unregister(gpio_data[i].dev); +- } ++ for (i = 0; i < pdata->num_gpios; i++) ++ timed_output_dev_unregister(&gpio_data[i].dev); + + kfree(gpio_data); + +@@ -151,22 +143,18 @@ static struct platform_driver timed_gpio_driver = { + .probe = timed_gpio_probe, + .remove = timed_gpio_remove, + .driver = { +- .name = "timed-gpio", ++ .name = TIMED_GPIO_NAME, + .owner = THIS_MODULE, + }, + }; + + static int __init timed_gpio_init(void) + { +- timed_gpio_class = class_create(THIS_MODULE, "timed_output"); +- if (IS_ERR(timed_gpio_class)) +- return PTR_ERR(timed_gpio_class); + return platform_driver_register(&timed_gpio_driver); + } + + static void __exit timed_gpio_exit(void) + { +- class_destroy(timed_gpio_class); + platform_driver_unregister(&timed_gpio_driver); + } + +diff --git a/drivers/staging/android/timed_gpio.h b/drivers/staging/android/timed_gpio.h +index 78449b2..a0e15f8 100644 +--- a/drivers/staging/android/timed_gpio.h ++++ b/drivers/staging/android/timed_gpio.h +@@ -16,10 +16,12 @@ + #ifndef _LINUX_TIMED_GPIO_H + #define _LINUX_TIMED_GPIO_H + ++#define TIMED_GPIO_NAME "timed-gpio" ++ + struct timed_gpio { + const char *name; + unsigned gpio; +- int max_timeout; ++ int max_timeout; + u8 active_low; + }; + +diff --git a/drivers/staging/android/timed_output.c b/drivers/staging/android/timed_output.c +new file mode 100644 +index 0000000..62e7918 +--- /dev/null ++++ b/drivers/staging/android/timed_output.c +@@ -0,0 +1,121 @@ ++/* drivers/misc/timed_output.c ++ * ++ * Copyright (C) 2009 Google, Inc. ++ * Author: Mike Lockwood <lockwood@android.com> ++ * ++ * This software is licensed under the terms of the GNU General Public ++ * License version 2, as published by the Free Software Foundation, and ++ * may be copied, distributed, and modified under those terms. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ * ++ */ ++ ++#include <linux/module.h> ++#include <linux/types.h> ++#include <linux/device.h> ++#include <linux/fs.h> ++#include <linux/err.h> ++ ++#include "timed_output.h" ++ ++static struct class *timed_output_class; ++static atomic_t device_count; ++ ++static ssize_t enable_show(struct device *dev, struct device_attribute *attr, ++ char *buf) ++{ ++ struct timed_output_dev *tdev = dev_get_drvdata(dev); ++ int remaining = tdev->get_time(tdev); ++ ++ return sprintf(buf, "%d\n", remaining); ++} ++ ++static ssize_t enable_store( ++ struct device *dev, struct device_attribute *attr, ++ const char *buf, size_t size) ++{ ++ struct timed_output_dev *tdev = dev_get_drvdata(dev); ++ int value; ++ ++ sscanf(buf, "%d", &value); ++ tdev->enable(tdev, value); ++ ++ return size; ++} ++ ++static DEVICE_ATTR(enable, S_IRUGO | S_IWUSR, enable_show, enable_store); ++ ++static int create_timed_output_class(void) ++{ ++ if (!timed_output_class) { ++ timed_output_class = class_create(THIS_MODULE, "timed_output"); ++ if (IS_ERR(timed_output_class)) ++ return PTR_ERR(timed_output_class); ++ atomic_set(&device_count, 0); ++ } ++ ++ return 0; ++} ++ ++int timed_output_dev_register(struct timed_output_dev *tdev) ++{ ++ int ret; ++ ++ if (!tdev || !tdev->name || !tdev->enable || !tdev->get_time) ++ return -EINVAL; ++ ++ ret = create_timed_output_class(); ++ if (ret < 0) ++ return ret; ++ ++ tdev->index = atomic_inc_return(&device_count); ++ tdev->dev = device_create(timed_output_class, NULL, ++ MKDEV(0, tdev->index), NULL, tdev->name); ++ if (IS_ERR(tdev->dev)) ++ return PTR_ERR(tdev->dev); ++ ++ ret = device_create_file(tdev->dev, &dev_attr_enable); ++ if (ret < 0) ++ goto err_create_file; ++ ++ dev_set_drvdata(tdev->dev, tdev); ++ tdev->state = 0; ++ return 0; ++ ++err_create_file: ++ device_destroy(timed_output_class, MKDEV(0, tdev->index)); ++ printk(KERN_ERR "timed_output: Failed to register driver %s\n", ++ tdev->name); ++ ++ return ret; ++} ++EXPORT_SYMBOL_GPL(timed_output_dev_register); ++ ++void timed_output_dev_unregister(struct timed_output_dev *tdev) ++{ ++ device_remove_file(tdev->dev, &dev_attr_enable); ++ device_destroy(timed_output_class, MKDEV(0, tdev->index)); ++ dev_set_drvdata(tdev->dev, NULL); ++} ++EXPORT_SYMBOL_GPL(timed_output_dev_unregister); ++ ++static int __init timed_output_init(void) ++{ ++ return create_timed_output_class(); ++} ++ ++static void __exit timed_output_exit(void) ++{ ++ class_destroy(timed_output_class); ++} ++ ++module_init(timed_output_init); ++module_exit(timed_output_exit); ++ ++MODULE_AUTHOR("Mike Lockwood <lockwood@android.com>"); ++MODULE_DESCRIPTION("timed output class driver"); ++MODULE_LICENSE("GPL"); +diff --git a/drivers/staging/android/timed_output.h b/drivers/staging/android/timed_output.h +new file mode 100644 +index 0000000..ec907ab +--- /dev/null ++++ b/drivers/staging/android/timed_output.h +@@ -0,0 +1,37 @@ ++/* include/linux/timed_output.h ++ * ++ * Copyright (C) 2008 Google, Inc. ++ * ++ * This software is licensed under the terms of the GNU General Public ++ * License version 2, as published by the Free Software Foundation, and ++ * may be copied, distributed, and modified under those terms. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ * ++*/ ++ ++#ifndef _LINUX_TIMED_OUTPUT_H ++#define _LINUX_TIMED_OUTPUT_H ++ ++struct timed_output_dev { ++ const char *name; ++ ++ /* enable the output and set the timer */ ++ void (*enable)(struct timed_output_dev *sdev, int timeout); ++ ++ /* returns the current number of milliseconds remaining on the timer */ ++ int (*get_time)(struct timed_output_dev *sdev); ++ ++ /* private data */ ++ struct device *dev; ++ int index; ++ int state; ++}; ++ ++extern int timed_output_dev_register(struct timed_output_dev *dev); ++extern void timed_output_dev_unregister(struct timed_output_dev *dev); ++ ++#endif +-- +1.6.2 + diff --git a/target/linux/goldfish/patches-2.6.30/0055-mm-Add-min_free_order_shift-tunable.patch b/target/linux/goldfish/patches-2.6.30/0055-mm-Add-min_free_order_shift-tunable.patch new file mode 100644 index 0000000000..2c6e329527 --- /dev/null +++ b/target/linux/goldfish/patches-2.6.30/0055-mm-Add-min_free_order_shift-tunable.patch @@ -0,0 +1,62 @@ +From d620f695290e4ffb1586420ba1dbbb5b2c8c075d Mon Sep 17 00:00:00 2001 +From: =?utf-8?q?Arve=20Hj=C3=B8nnev=C3=A5g?= <arve@android.com> +Date: Tue, 17 Feb 2009 14:51:02 -0800 +Subject: [PATCH 055/134] mm: Add min_free_order_shift tunable. +MIME-Version: 1.0 +Content-Type: text/plain; charset=utf-8 +Content-Transfer-Encoding: 8bit + +By default the kernel tries to keep half as much memory free at each +order as it does for one order below. This can be too agressive when +running without swap. + +Signed-off-by: Arve HjønnevÃ¥g <arve@android.com> +--- + kernel/sysctl.c | 9 +++++++++ + mm/page_alloc.c | 3 ++- + 2 files changed, 11 insertions(+), 1 deletions(-) + +--- a/kernel/sysctl.c ++++ b/kernel/sysctl.c +@@ -77,6 +77,7 @@ extern int suid_dumpable; + extern char core_pattern[]; + extern int pid_max; + extern int min_free_kbytes; ++extern int min_free_order_shift; + extern int pid_max_min, pid_max_max; + extern int sysctl_drop_caches; + extern int percpu_pagelist_fraction; +@@ -1109,6 +1110,14 @@ static struct ctl_table vm_table[] = { + .extra1 = &zero, + }, + { ++ .ctl_name = CTL_UNNUMBERED, ++ .procname = "min_free_order_shift", ++ .data = &min_free_order_shift, ++ .maxlen = sizeof(min_free_order_shift), ++ .mode = 0644, ++ .proc_handler = &proc_dointvec ++ }, ++ { + .ctl_name = VM_PERCPU_PAGELIST_FRACTION, + .procname = "percpu_pagelist_fraction", + .data = &percpu_pagelist_fraction, +--- a/mm/page_alloc.c ++++ b/mm/page_alloc.c +@@ -119,6 +119,7 @@ static char * const zone_names[MAX_NR_ZO + }; + + int min_free_kbytes = 1024; ++int min_free_order_shift = 1; + + unsigned long __meminitdata nr_kernel_pages; + unsigned long __meminitdata nr_all_pages; +@@ -1253,7 +1254,7 @@ int zone_watermark_ok(struct zone *z, in + free_pages -= z->free_area[o].nr_free << o; + + /* Require fewer higher order pages to be free */ +- min >>= 1; ++ min >>= min_free_order_shift; + + if (free_pages <= min) + return 0; diff --git a/target/linux/goldfish/patches-2.6.30/0056-mm-Check-if-any-page-in-a-pageblock-is-reserved-bef.patch b/target/linux/goldfish/patches-2.6.30/0056-mm-Check-if-any-page-in-a-pageblock-is-reserved-bef.patch new file mode 100644 index 0000000000..63a9bcd492 --- /dev/null +++ b/target/linux/goldfish/patches-2.6.30/0056-mm-Check-if-any-page-in-a-pageblock-is-reserved-bef.patch @@ -0,0 +1,45 @@ +From a4eb204a8029320c2dd748daf4f51fd48d337c3d Mon Sep 17 00:00:00 2001 +From: =?utf-8?q?Arve=20Hj=C3=B8nnev=C3=A5g?= <arve@android.com> +Date: Wed, 18 Mar 2009 17:27:31 -0700 +Subject: [PATCH 056/134] mm: Check if any page in a pageblock is reserved before marking it MIGRATE_RESERVE + +This fixes a problem where the first pageblock got marked MIGRATE_RESERVE even +though it only had a few free pages. This in turn caused no contiguous memory +to be reserved and frequent kswapd wakeups that emptied the caches to get more +contiguous memory. +--- + mm/page_alloc.c | 16 +++++++++++++++- + 1 files changed, 15 insertions(+), 1 deletions(-) + +--- a/mm/page_alloc.c ++++ b/mm/page_alloc.c +@@ -2545,6 +2545,20 @@ static inline unsigned long wait_table_b + #define LONG_ALIGN(x) (((x)+(sizeof(long))-1)&~((sizeof(long))-1)) + + /* ++ * Check if a pageblock contains reserved pages ++ */ ++static int pageblock_is_reserved(unsigned long start_pfn) ++{ ++ unsigned long end_pfn = start_pfn + pageblock_nr_pages; ++ unsigned long pfn; ++ ++ for (pfn = start_pfn; pfn < end_pfn; pfn++) ++ if (PageReserved(pfn_to_page(pfn))) ++ return 1; ++ return 0; ++} ++ ++/* + * Mark a number of pageblocks as MIGRATE_RESERVE. The number + * of blocks reserved is based on zone->pages_min. The memory within the + * reserve will tend to store contiguous free pages. Setting min_free_kbytes +@@ -2573,7 +2587,7 @@ static void setup_zone_migrate_reserve(s + continue; + + /* Blocks with reserved pages will never free, skip them. */ +- if (PageReserved(page)) ++ if (pageblock_is_reserved(pfn)) + continue; + + block_migratetype = get_pageblock_migratetype(page); diff --git a/target/linux/goldfish/patches-2.6.30/0058-sched-Enable-might_sleep-before-initializing-driver.patch b/target/linux/goldfish/patches-2.6.30/0058-sched-Enable-might_sleep-before-initializing-driver.patch new file mode 100644 index 0000000000..126cac0188 --- /dev/null +++ b/target/linux/goldfish/patches-2.6.30/0058-sched-Enable-might_sleep-before-initializing-driver.patch @@ -0,0 +1,43 @@ +From 10276fd993c6e4c92d8086a6ccd0c9e0ff53b053 Mon Sep 17 00:00:00 2001 +From: =?utf-8?q?Arve=20Hj=C3=B8nnev=C3=A5g?= <arve@android.com> +Date: Wed, 10 Dec 2008 20:06:28 -0800 +Subject: [PATCH 058/134] sched: Enable might_sleep before initializing drivers. +MIME-Version: 1.0 +Content-Type: text/plain; charset=utf-8 +Content-Transfer-Encoding: 8bit + +This allows detection of init bugs in built-in drivers. + +Signed-off-by: Arve HjønnevÃ¥g <arve@android.com> +--- + kernel/sched.c | 14 ++++++++++++-- + 1 files changed, 12 insertions(+), 2 deletions(-) + +--- a/kernel/sched.c ++++ b/kernel/sched.c +@@ -9064,13 +9064,23 @@ void __init sched_init(void) + } + + #ifdef CONFIG_DEBUG_SPINLOCK_SLEEP ++static int __might_sleep_init_called; ++int __init __might_sleep_init(void) ++{ ++ __might_sleep_init_called = 1; ++ return 0; ++} ++early_initcall(__might_sleep_init); ++ + void __might_sleep(char *file, int line) + { + #ifdef in_atomic + static unsigned long prev_jiffy; /* ratelimiting */ + +- if ((!in_atomic() && !irqs_disabled()) || +- system_state != SYSTEM_RUNNING || oops_in_progress) ++ if ((!in_atomic() && !irqs_disabled()) || oops_in_progress) ++ return; ++ if (system_state != SYSTEM_RUNNING && ++ (!__might_sleep_init_called || system_state != SYSTEM_BOOTING)) + return; + if (time_before(jiffies, prev_jiffy + HZ) && prev_jiffy) + return; diff --git a/target/linux/goldfish/patches-2.6.30/0060--ARM-Add-code-to-prevent-system-calls-from-being-re.patch b/target/linux/goldfish/patches-2.6.30/0060--ARM-Add-code-to-prevent-system-calls-from-being-re.patch new file mode 100644 index 0000000000..f0d33ed211 --- /dev/null +++ b/target/linux/goldfish/patches-2.6.30/0060--ARM-Add-code-to-prevent-system-calls-from-being-re.patch @@ -0,0 +1,35 @@ +From d52bcb0a807dde87057f330dbe95aa6d221a4b85 Mon Sep 17 00:00:00 2001 +From: =?utf-8?q?Arve=20Hj=C3=B8nnev=C3=A5g?= <arve@android.com> +Date: Mon, 9 Apr 2007 17:13:02 +0700 +Subject: [PATCH 060/134] [ARM] Add code to prevent system calls from being restarted muliple times before returning from the kernel. + +Fixes crashes with thumb syscalls. +--- + arch/arm/kernel/signal.c | 9 +++++++++ + 1 files changed, 9 insertions(+), 0 deletions(-) + +--- a/arch/arm/kernel/signal.c ++++ b/arch/arm/kernel/signal.c +@@ -534,6 +534,14 @@ setup_rt_frame(int usig, struct k_sigact + + static inline void restart_syscall(struct pt_regs *regs) + { ++ if (regs->ARM_ORIG_r0 == -ERESTARTNOHAND || ++ regs->ARM_ORIG_r0 == -ERESTARTSYS || ++ regs->ARM_ORIG_r0 == -ERESTARTNOINTR || ++ regs->ARM_ORIG_r0 == -ERESTART_RESTARTBLOCK) { ++ /* the syscall cannot be safely restarted, return -EINTR instead */ ++ regs->ARM_r0 = -EINTR; ++ return; ++ } + regs->ARM_r0 = regs->ARM_ORIG_r0; + regs->ARM_pc -= thumb_mode(regs) ? 2 : 4; + } +@@ -650,6 +658,7 @@ static int do_signal(sigset_t *oldset, s + */ + if (syscall) { + if (regs->ARM_r0 == -ERESTART_RESTARTBLOCK) { ++ regs->ARM_r0 = -EAGAIN; /* prevent multiple restarts */ + if (thumb_mode(regs)) { + regs->ARM_r7 = __NR_restart_syscall - __NR_SYSCALL_BASE; + regs->ARM_pc -= 2; diff --git a/target/linux/goldfish/patches-2.6.30/0061--ARM-Save-thread-registers-in-coredumps.patch b/target/linux/goldfish/patches-2.6.30/0061--ARM-Save-thread-registers-in-coredumps.patch new file mode 100644 index 0000000000..44f78b6385 --- /dev/null +++ b/target/linux/goldfish/patches-2.6.30/0061--ARM-Save-thread-registers-in-coredumps.patch @@ -0,0 +1,50 @@ +From 784b170a69906c48a688a9ffa7512fc858f8836c Mon Sep 17 00:00:00 2001 +From: =?utf-8?q?Arve=20Hj=C3=B8nnev=C3=A5g?= <arve@android.com> +Date: Sun, 30 Mar 2008 21:36:29 -0700 +Subject: [PATCH 061/134] [ARM] Save thread registers in coredumps + +Signed-off-by: Brian Swetland <swetland@google.com> +--- + arch/arm/include/asm/elf.h | 6 ++++++ + arch/arm/kernel/process.c | 10 ++++++++++ + 2 files changed, 16 insertions(+), 0 deletions(-) + +--- a/arch/arm/include/asm/elf.h ++++ b/arch/arm/include/asm/elf.h +@@ -86,6 +86,10 @@ extern char elf_platform[]; + + struct elf32_hdr; + ++struct task_struct; ++ ++extern int dump_task_regs (struct task_struct *, elf_gregset_t *); ++ + /* + * This is used to ensure we don't load something for the wrong architecture. + */ +@@ -113,4 +117,6 @@ extern int arm_elf_read_implies_exec(con + extern void elf_set_personality(const struct elf32_hdr *); + #define SET_PERSONALITY(ex) elf_set_personality(&(ex)) + ++#define ELF_CORE_COPY_TASK_REGS(tsk, elf_regs) dump_task_regs(tsk, elf_regs) ++ + #endif +--- a/arch/arm/kernel/process.c ++++ b/arch/arm/kernel/process.c +@@ -337,6 +337,16 @@ int dump_fpu (struct pt_regs *regs, stru + EXPORT_SYMBOL(dump_fpu); + + /* ++ * Capture the user space registers if the task is not running (in user space) ++ */ ++int dump_task_regs(struct task_struct *tsk, elf_gregset_t *regs) ++{ ++ struct pt_regs ptregs = *task_pt_regs(tsk); ++ elf_core_copy_regs(regs, &ptregs); ++ return 1; ++} ++ ++/* + * Shuffle the argument into the correct register before calling the + * thread function. r1 is the thread argument, r2 is the pointer to + * the thread function, and r3 points to the exit function. diff --git a/target/linux/goldfish/patches-2.6.30/0064-PM-Add-wake-lock-api.patch b/target/linux/goldfish/patches-2.6.30/0064-PM-Add-wake-lock-api.patch new file mode 100644 index 0000000000..bd4d364adc --- /dev/null +++ b/target/linux/goldfish/patches-2.6.30/0064-PM-Add-wake-lock-api.patch @@ -0,0 +1,104 @@ +From e93bd714c424d9fe907cb1d8ec5ce784767a3b16 Mon Sep 17 00:00:00 2001 +From: =?utf-8?q?Arve=20Hj=C3=B8nnev=C3=A5g?= <arve@android.com> +Date: Fri, 26 Sep 2008 22:10:56 -0700 +Subject: [PATCH 064/134] PM: Add wake lock api. + +--- + include/linux/wakelock.h | 91 ++++++++++++++++++++++++++++++++++++++++++++++ + 1 files changed, 91 insertions(+), 0 deletions(-) + create mode 100755 include/linux/wakelock.h + +--- /dev/null ++++ b/include/linux/wakelock.h +@@ -0,0 +1,91 @@ ++/* include/linux/wakelock.h ++ * ++ * Copyright (C) 2007-2008 Google, Inc. ++ * ++ * This software is licensed under the terms of the GNU General Public ++ * License version 2, as published by the Free Software Foundation, and ++ * may be copied, distributed, and modified under those terms. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ * ++ */ ++ ++#ifndef _LINUX_WAKELOCK_H ++#define _LINUX_WAKELOCK_H ++ ++#include <linux/list.h> ++#include <linux/ktime.h> ++ ++/* A wake_lock prevents the system from entering suspend or other low power ++ * states when active. If the type is set to WAKE_LOCK_SUSPEND, the wake_lock ++ * prevents a full system suspend. If the type is WAKE_LOCK_IDLE, low power ++ * states that cause large interrupt latencies or that disable a set of ++ * interrupts will not entered from idle until the wake_locks are released. ++ */ ++ ++enum { ++ WAKE_LOCK_SUSPEND, /* Prevent suspend */ ++ WAKE_LOCK_IDLE, /* Prevent low power idle */ ++ WAKE_LOCK_TYPE_COUNT ++}; ++ ++struct wake_lock { ++#ifdef CONFIG_HAS_WAKELOCK ++ struct list_head link; ++ int flags; ++ const char *name; ++ unsigned long expires; ++#ifdef CONFIG_WAKELOCK_STAT ++ struct { ++ int count; ++ int expire_count; ++ int wakeup_count; ++ ktime_t total_time; ++ ktime_t prevent_suspend_time; ++ ktime_t max_time; ++ ktime_t last_time; ++ } stat; ++#endif ++#endif ++}; ++ ++#ifdef CONFIG_HAS_WAKELOCK ++ ++void wake_lock_init(struct wake_lock *lock, int type, const char *name); ++void wake_lock_destroy(struct wake_lock *lock); ++void wake_lock(struct wake_lock *lock); ++void wake_lock_timeout(struct wake_lock *lock, long timeout); ++void wake_unlock(struct wake_lock *lock); ++ ++/* wake_lock_active returns a non-zero value if the wake_lock is currently ++ * locked. If the wake_lock has a timeout, it does not check the timeout ++ * but if the timeout had aready been checked it will return 0. ++ */ ++int wake_lock_active(struct wake_lock *lock); ++ ++/* has_wake_lock returns 0 if no wake locks of the specified type are active, ++ * and non-zero if one or more wake locks are held. Specifically it returns ++ * -1 if one or more wake locks with no timeout are active or the ++ * number of jiffies until all active wake locks time out. ++ */ ++long has_wake_lock(int type); ++ ++#else ++ ++static inline void wake_lock_init(struct wake_lock *lock, int type, ++ const char *name) {} ++static inline void wake_lock_destroy(struct wake_lock *lock) {} ++static inline void wake_lock(struct wake_lock *lock) {} ++static inline void wake_lock_timeout(struct wake_lock *lock, long timeout) {} ++static inline void wake_unlock(struct wake_lock *lock) {} ++ ++static inline int wake_lock_active(struct wake_lock *lock) { return 0; } ++static inline long has_wake_lock(int type) { return 0; } ++ ++#endif ++ ++#endif ++ diff --git a/target/linux/goldfish/patches-2.6.30/0065-PM-Add-early-suspend-api.patch b/target/linux/goldfish/patches-2.6.30/0065-PM-Add-early-suspend-api.patch new file mode 100644 index 0000000000..02adef68a4 --- /dev/null +++ b/target/linux/goldfish/patches-2.6.30/0065-PM-Add-early-suspend-api.patch @@ -0,0 +1,69 @@ +From 4f76252afe98fd017894e61c296bc61836e67a4a Mon Sep 17 00:00:00 2001 +From: =?utf-8?q?Arve=20Hj=C3=B8nnev=C3=A5g?= <arve@android.com> +Date: Fri, 26 Sep 2008 22:10:56 -0700 +Subject: [PATCH 065/134] PM: Add early suspend api. + +--- + include/linux/earlysuspend.h | 56 ++++++++++++++++++++++++++++++++++++++++++ + 1 files changed, 56 insertions(+), 0 deletions(-) + create mode 100755 include/linux/earlysuspend.h + +--- /dev/null ++++ b/include/linux/earlysuspend.h +@@ -0,0 +1,56 @@ ++/* include/linux/earlysuspend.h ++ * ++ * Copyright (C) 2007-2008 Google, Inc. ++ * ++ * This software is licensed under the terms of the GNU General Public ++ * License version 2, as published by the Free Software Foundation, and ++ * may be copied, distributed, and modified under those terms. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ * ++ */ ++ ++#ifndef _LINUX_EARLYSUSPEND_H ++#define _LINUX_EARLYSUSPEND_H ++ ++#ifdef CONFIG_HAS_EARLYSUSPEND ++#include <linux/list.h> ++#endif ++ ++/* The early_suspend structure defines suspend and resume hooks to be called ++ * when the user visible sleep state of the system changes, and a level to ++ * control the order. They can be used to turn off the screen and input ++ * devices that are not used for wakeup. ++ * Suspend handlers are called in low to high level order, resume handlers are ++ * called in the opposite order. If, when calling register_early_suspend, ++ * the suspend handlers have already been called without a matching call to the ++ * resume handlers, the suspend handler will be called directly from ++ * register_early_suspend. This direct call can violate the normal level order. ++ */ ++enum { ++ EARLY_SUSPEND_LEVEL_BLANK_SCREEN = 50, ++ EARLY_SUSPEND_LEVEL_STOP_DRAWING = 100, ++ EARLY_SUSPEND_LEVEL_DISABLE_FB = 150, ++}; ++struct early_suspend { ++#ifdef CONFIG_HAS_EARLYSUSPEND ++ struct list_head link; ++ int level; ++ void (*suspend)(struct early_suspend *h); ++ void (*resume)(struct early_suspend *h); ++#endif ++}; ++ ++#ifdef CONFIG_HAS_EARLYSUSPEND ++void register_early_suspend(struct early_suspend *handler); ++void unregister_early_suspend(struct early_suspend *handler); ++#else ++#define register_early_suspend(handler) do { } while (0) ++#define unregister_early_suspend(handler) do { } while (0) ++#endif ++ ++#endif ++ diff --git a/target/linux/goldfish/patches-2.6.30/0066-PM-Implement-wakelock-api.patch b/target/linux/goldfish/patches-2.6.30/0066-PM-Implement-wakelock-api.patch new file mode 100644 index 0000000000..610bc1f518 --- /dev/null +++ b/target/linux/goldfish/patches-2.6.30/0066-PM-Implement-wakelock-api.patch @@ -0,0 +1,673 @@ +From eef7f012d480142a3eccff91e0ae73ecb13220b3 Mon Sep 17 00:00:00 2001 +From: =?utf-8?q?Arve=20Hj=C3=B8nnev=C3=A5g?= <arve@android.com> +Date: Tue, 9 Sep 2008 22:14:34 -0700 +Subject: [PATCH 066/134] PM: Implement wakelock api. +MIME-Version: 1.0 +Content-Type: text/plain; charset=utf-8 +Content-Transfer-Encoding: 8bit + +PM: wakelock: Replace expire work with a timer + +The expire work function did not work in the normal case. + +Signed-off-by: Arve HjønnevÃ¥g <arve@android.com> +--- + kernel/power/Kconfig | 19 ++ + kernel/power/Makefile | 1 + + kernel/power/power.h | 7 + + kernel/power/wakelock.c | 598 +++++++++++++++++++++++++++++++++++++++++++++++ + 4 files changed, 625 insertions(+), 0 deletions(-) + create mode 100644 kernel/power/wakelock.c + +--- a/kernel/power/Kconfig ++++ b/kernel/power/Kconfig +@@ -116,6 +116,25 @@ config SUSPEND_FREEZER + + Turning OFF this setting is NOT recommended! If in doubt, say Y. + ++config HAS_WAKELOCK ++ bool ++ ++config WAKELOCK ++ bool "Wake lock" ++ depends on PM && RTC_CLASS ++ default n ++ select HAS_WAKELOCK ++ ---help--- ++ Enable wakelocks. When user space request a sleep state the ++ sleep request will be delayed until no wake locks are held. ++ ++config WAKELOCK_STAT ++ bool "Wake lock stats" ++ depends on WAKELOCK ++ default y ++ ---help--- ++ Report wake lock stats in /proc/wakelocks ++ + config HIBERNATION + bool "Hibernation (aka 'suspend to disk')" + depends on PM && SWAP && ARCH_HIBERNATION_POSSIBLE +--- a/kernel/power/Makefile ++++ b/kernel/power/Makefile +@@ -6,6 +6,7 @@ endif + obj-$(CONFIG_PM) += main.o + obj-$(CONFIG_PM_SLEEP) += console.o + obj-$(CONFIG_FREEZER) += process.o ++obj-$(CONFIG_WAKELOCK) += wakelock.o + obj-$(CONFIG_HIBERNATION) += swsusp.o disk.o snapshot.o swap.o user.o + + obj-$(CONFIG_MAGIC_SYSRQ) += poweroff.o +--- a/kernel/power/power.h ++++ b/kernel/power/power.h +@@ -223,3 +223,10 @@ static inline void suspend_thaw_processe + { + } + #endif ++ ++#ifdef CONFIG_WAKELOCK ++/* kernel/power/wakelock.c */ ++extern struct workqueue_struct *suspend_work_queue; ++extern struct wake_lock main_wake_lock; ++extern suspend_state_t requested_suspend_state; ++#endif +--- /dev/null ++++ b/kernel/power/wakelock.c +@@ -0,0 +1,598 @@ ++/* kernel/power/wakelock.c ++ * ++ * Copyright (C) 2005-2008 Google, Inc. ++ * ++ * This software is licensed under the terms of the GNU General Public ++ * License version 2, as published by the Free Software Foundation, and ++ * may be copied, distributed, and modified under those terms. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ * ++ */ ++ ++#include <linux/module.h> ++#include <linux/platform_device.h> ++#include <linux/rtc.h> ++#include <linux/suspend.h> ++#include <linux/syscalls.h> /* sys_sync */ ++#include <linux/wakelock.h> ++#ifdef CONFIG_WAKELOCK_STAT ++#include <linux/proc_fs.h> ++#endif ++#include "power.h" ++ ++enum { ++ DEBUG_EXIT_SUSPEND = 1U << 0, ++ DEBUG_WAKEUP = 1U << 1, ++ DEBUG_SUSPEND = 1U << 2, ++ DEBUG_EXPIRE = 1U << 3, ++ DEBUG_WAKE_LOCK = 1U << 4, ++}; ++static int debug_mask = DEBUG_EXIT_SUSPEND | DEBUG_WAKEUP; ++module_param_named(debug_mask, debug_mask, int, S_IRUGO | S_IWUSR | S_IWGRP); ++ ++#define WAKE_LOCK_TYPE_MASK (0x0f) ++#define WAKE_LOCK_INITIALIZED (1U << 8) ++#define WAKE_LOCK_ACTIVE (1U << 9) ++#define WAKE_LOCK_AUTO_EXPIRE (1U << 10) ++#define WAKE_LOCK_PREVENTING_SUSPEND (1U << 11) ++ ++static DEFINE_SPINLOCK(list_lock); ++static LIST_HEAD(inactive_locks); ++static struct list_head active_wake_locks[WAKE_LOCK_TYPE_COUNT]; ++static int current_event_num; ++struct workqueue_struct *suspend_work_queue; ++struct wake_lock main_wake_lock; ++suspend_state_t requested_suspend_state = PM_SUSPEND_MEM; ++static struct wake_lock unknown_wakeup; ++ ++#ifdef CONFIG_WAKELOCK_STAT ++static struct wake_lock deleted_wake_locks; ++static ktime_t last_sleep_time_update; ++static int wait_for_wakeup; ++ ++int get_expired_time(struct wake_lock *lock, ktime_t *expire_time) ++{ ++ struct timespec ts; ++ struct timespec kt; ++ struct timespec tomono; ++ struct timespec delta; ++ unsigned long seq; ++ long timeout; ++ ++ if (!(lock->flags & WAKE_LOCK_AUTO_EXPIRE)) ++ return 0; ++ do { ++ seq = read_seqbegin(&xtime_lock); ++ timeout = lock->expires - jiffies; ++ if (timeout > 0) ++ return 0; ++ kt = current_kernel_time(); ++ tomono = wall_to_monotonic; ++ } while (read_seqretry(&xtime_lock, seq)); ++ jiffies_to_timespec(-timeout, &delta); ++ set_normalized_timespec(&ts, kt.tv_sec + tomono.tv_sec - delta.tv_sec, ++ kt.tv_nsec + tomono.tv_nsec - delta.tv_nsec); ++ *expire_time = timespec_to_ktime(ts); ++ return 1; ++} ++ ++ ++static int print_lock_stat(char *buf, struct wake_lock *lock) ++{ ++ int lock_count = lock->stat.count; ++ int expire_count = lock->stat.expire_count; ++ ktime_t active_time = ktime_set(0, 0); ++ ktime_t total_time = lock->stat.total_time; ++ ktime_t max_time = lock->stat.max_time; ++ ktime_t prevent_suspend_time = lock->stat.prevent_suspend_time; ++ if (lock->flags & WAKE_LOCK_ACTIVE) { ++ ktime_t now, add_time; ++ int expired = get_expired_time(lock, &now); ++ if (!expired) ++ now = ktime_get(); ++ add_time = ktime_sub(now, lock->stat.last_time); ++ lock_count++; ++ if (!expired) ++ active_time = add_time; ++ else ++ expire_count++; ++ total_time = ktime_add(total_time, add_time); ++ if (lock->flags & WAKE_LOCK_PREVENTING_SUSPEND) ++ prevent_suspend_time = ktime_add(prevent_suspend_time, ++ ktime_sub(now, last_sleep_time_update)); ++ if (add_time.tv64 > max_time.tv64) ++ max_time = add_time; ++ } ++ ++ return sprintf(buf, "\"%s\"\t%d\t%d\t%d\t%lld\t%lld\t%lld\t%lld\t" ++ "%lld\n", lock->name, lock_count, expire_count, ++ lock->stat.wakeup_count, ktime_to_ns(active_time), ++ ktime_to_ns(total_time), ++ ktime_to_ns(prevent_suspend_time), ktime_to_ns(max_time), ++ ktime_to_ns(lock->stat.last_time)); ++} ++ ++ ++static int wakelocks_read_proc(char *page, char **start, off_t off, ++ int count, int *eof, void *data) ++{ ++ unsigned long irqflags; ++ struct wake_lock *lock; ++ int len = 0; ++ char *p = page; ++ int type; ++ ++ spin_lock_irqsave(&list_lock, irqflags); ++ ++ p += sprintf(p, "name\tcount\texpire_count\twake_count\tactive_since" ++ "\ttotal_time\tsleep_time\tmax_time\tlast_change\n"); ++ list_for_each_entry(lock, &inactive_locks, link) { ++ p += print_lock_stat(p, lock); ++ } ++ for (type = 0; type < WAKE_LOCK_TYPE_COUNT; type++) { ++ list_for_each_entry(lock, &active_wake_locks[type], link) ++ p += print_lock_stat(p, lock); ++ } ++ spin_unlock_irqrestore(&list_lock, irqflags); ++ ++ *start = page + off; ++ ++ len = p - page; ++ if (len > off) ++ len -= off; ++ else ++ len = 0; ++ ++ return len < count ? len : count; ++} ++ ++static void wake_unlock_stat_locked(struct wake_lock *lock, int expired) ++{ ++ ktime_t duration; ++ ktime_t now; ++ if (!(lock->flags & WAKE_LOCK_ACTIVE)) ++ return; ++ if (get_expired_time(lock, &now)) ++ expired = 1; ++ else ++ now = ktime_get(); ++ lock->stat.count++; ++ if (expired) ++ lock->stat.expire_count++; ++ duration = ktime_sub(now, lock->stat.last_time); ++ lock->stat.total_time = ktime_add(lock->stat.total_time, duration); ++ if (ktime_to_ns(duration) > ktime_to_ns(lock->stat.max_time)) ++ lock->stat.max_time = duration; ++ lock->stat.last_time = ktime_get(); ++ if (lock->flags & WAKE_LOCK_PREVENTING_SUSPEND) { ++ duration = ktime_sub(now, last_sleep_time_update); ++ lock->stat.prevent_suspend_time = ktime_add( ++ lock->stat.prevent_suspend_time, duration); ++ lock->flags &= ~WAKE_LOCK_PREVENTING_SUSPEND; ++ } ++} ++ ++static void update_sleep_wait_stats_locked(int done) ++{ ++ struct wake_lock *lock; ++ ktime_t now, etime, elapsed, add; ++ int expired; ++ ++ now = ktime_get(); ++ elapsed = ktime_sub(now, last_sleep_time_update); ++ list_for_each_entry(lock, &active_wake_locks[WAKE_LOCK_SUSPEND], link) { ++ expired = get_expired_time(lock, &etime); ++ if (lock->flags & WAKE_LOCK_PREVENTING_SUSPEND) { ++ if (expired) ++ add = ktime_sub(etime, last_sleep_time_update); ++ else ++ add = elapsed; ++ lock->stat.prevent_suspend_time = ktime_add( ++ lock->stat.prevent_suspend_time, add); ++ } ++ if (done || expired) ++ lock->flags &= ~WAKE_LOCK_PREVENTING_SUSPEND; ++ else ++ lock->flags |= WAKE_LOCK_PREVENTING_SUSPEND; ++ } ++ last_sleep_time_update = now; ++} ++#endif ++ ++ ++static void expire_wake_lock(struct wake_lock *lock) ++{ ++#ifdef CONFIG_WAKELOCK_STAT ++ wake_unlock_stat_locked(lock, 1); ++#endif ++ lock->flags &= ~(WAKE_LOCK_ACTIVE | WAKE_LOCK_AUTO_EXPIRE); ++ list_del(&lock->link); ++ list_add(&lock->link, &inactive_locks); ++ if (debug_mask & (DEBUG_WAKE_LOCK | DEBUG_EXPIRE)) ++ pr_info("expired wake lock %s\n", lock->name); ++} ++ ++static void print_active_locks(int type) ++{ ++ unsigned long irqflags; ++ struct wake_lock *lock; ++ ++ BUG_ON(type >= WAKE_LOCK_TYPE_COUNT); ++ spin_lock_irqsave(&list_lock, irqflags); ++ list_for_each_entry(lock, &active_wake_locks[type], link) { ++ if (lock->flags & WAKE_LOCK_AUTO_EXPIRE) { ++ long timeout = lock->expires - jiffies; ++ if (timeout <= 0) ++ pr_info("wake lock %s, expired\n", lock->name); ++ else ++ pr_info("active wake lock %s, time left %ld\n", ++ lock->name, timeout); ++ } else ++ pr_info("active wake lock %s\n", lock->name); ++ } ++ spin_unlock_irqrestore(&list_lock, irqflags); ++} ++ ++static long has_wake_lock_locked(int type) ++{ ++ struct wake_lock *lock, *n; ++ long max_timeout = 0; ++ ++ BUG_ON(type >= WAKE_LOCK_TYPE_COUNT); ++ list_for_each_entry_safe(lock, n, &active_wake_locks[type], link) { ++ if (lock->flags & WAKE_LOCK_AUTO_EXPIRE) { ++ long timeout = lock->expires - jiffies; ++ if (timeout <= 0) ++ expire_wake_lock(lock); ++ else if (timeout > max_timeout) ++ max_timeout = timeout; ++ } else ++ return -1; ++ } ++ return max_timeout; ++} ++ ++long has_wake_lock(int type) ++{ ++ long ret; ++ unsigned long irqflags; ++ spin_lock_irqsave(&list_lock, irqflags); ++ ret = has_wake_lock_locked(type); ++ spin_unlock_irqrestore(&list_lock, irqflags); ++ return ret; ++} ++ ++static void suspend(struct work_struct *work) ++{ ++ int ret; ++ int entry_event_num; ++ ++ if (has_wake_lock(WAKE_LOCK_SUSPEND)) { ++ if (debug_mask & DEBUG_SUSPEND) ++ pr_info("suspend: abort suspend\n"); ++ return; ++ } ++ ++ entry_event_num = current_event_num; ++ sys_sync(); ++ if (debug_mask & DEBUG_SUSPEND) ++ pr_info("suspend: enter suspend\n"); ++ ret = pm_suspend(requested_suspend_state); ++ if (debug_mask & DEBUG_EXIT_SUSPEND) { ++ struct timespec ts; ++ struct rtc_time tm; ++ getnstimeofday(&ts); ++ rtc_time_to_tm(ts.tv_sec, &tm); ++ pr_info("suspend: exit suspend, ret = %d " ++ "(%d-%02d-%02d %02d:%02d:%02d.%09lu UTC)\n", ret, ++ tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday, ++ tm.tm_hour, tm.tm_min, tm.tm_sec, ts.tv_nsec); ++ } ++ if (current_event_num == entry_event_num) { ++ if (debug_mask & DEBUG_SUSPEND) ++ pr_info("suspend: pm_suspend returned with no event\n"); ++ wake_lock_timeout(&unknown_wakeup, HZ / 2); ++ } ++} ++static DECLARE_WORK(suspend_work, suspend); ++ ++static void expire_wake_locks(unsigned long data) ++{ ++ long has_lock; ++ unsigned long irqflags; ++ if (debug_mask & DEBUG_EXPIRE) ++ pr_info("expire_wake_locks: start\n"); ++ if (debug_mask & DEBUG_SUSPEND) ++ print_active_locks(WAKE_LOCK_SUSPEND); ++ spin_lock_irqsave(&list_lock, irqflags); ++ has_lock = has_wake_lock_locked(WAKE_LOCK_SUSPEND); ++ if (debug_mask & DEBUG_EXPIRE) ++ pr_info("expire_wake_locks: done, has_lock %ld\n", has_lock); ++ if (has_lock == 0) ++ queue_work(suspend_work_queue, &suspend_work); ++ spin_unlock_irqrestore(&list_lock, irqflags); ++} ++static DEFINE_TIMER(expire_timer, expire_wake_locks, 0, 0); ++ ++static int power_suspend_late(struct platform_device *pdev, pm_message_t state) ++{ ++ int ret = has_wake_lock(WAKE_LOCK_SUSPEND) ? -EAGAIN : 0; ++#ifdef CONFIG_WAKELOCK_STAT ++ wait_for_wakeup = 1; ++#endif ++ if (debug_mask & DEBUG_SUSPEND) ++ pr_info("power_suspend_late return %d\n", ret); ++ return ret; ++} ++ ++static struct platform_driver power_driver = { ++ .driver.name = "power", ++ .suspend_late = power_suspend_late, ++}; ++static struct platform_device power_device = { ++ .name = "power", ++}; ++ ++void wake_lock_init(struct wake_lock *lock, int type, const char *name) ++{ ++ unsigned long irqflags = 0; ++ ++ if (name) ++ lock->name = name; ++ BUG_ON(!lock->name); ++ ++ if (debug_mask & DEBUG_WAKE_LOCK) ++ pr_info("wake_lock_init name=%s\n", lock->name); ++#ifdef CONFIG_WAKELOCK_STAT ++ lock->stat.count = 0; ++ lock->stat.expire_count = 0; ++ lock->stat.wakeup_count = 0; ++ lock->stat.total_time = ktime_set(0, 0); ++ lock->stat.prevent_suspend_time = ktime_set(0, 0); ++ lock->stat.max_time = ktime_set(0, 0); ++ lock->stat.last_time = ktime_set(0, 0); ++#endif ++ lock->flags = (type & WAKE_LOCK_TYPE_MASK) | WAKE_LOCK_INITIALIZED; ++ ++ INIT_LIST_HEAD(&lock->link); ++ spin_lock_irqsave(&list_lock, irqflags); ++ list_add(&lock->link, &inactive_locks); ++ spin_unlock_irqrestore(&list_lock, irqflags); ++} ++EXPORT_SYMBOL(wake_lock_init); ++ ++void wake_lock_destroy(struct wake_lock *lock) ++{ ++ unsigned long irqflags; ++ if (debug_mask & DEBUG_WAKE_LOCK) ++ pr_info("wake_lock_destroy name=%s\n", lock->name); ++ spin_lock_irqsave(&list_lock, irqflags); ++ lock->flags &= ~WAKE_LOCK_INITIALIZED; ++#ifdef CONFIG_WAKELOCK_STAT ++ if (lock->stat.count) { ++ deleted_wake_locks.stat.count += lock->stat.count; ++ deleted_wake_locks.stat.expire_count += lock->stat.expire_count; ++ deleted_wake_locks.stat.total_time = ++ ktime_add(deleted_wake_locks.stat.total_time, ++ lock->stat.total_time); ++ deleted_wake_locks.stat.prevent_suspend_time = ++ ktime_add(deleted_wake_locks.stat.prevent_suspend_time, ++ lock->stat.prevent_suspend_time); ++ deleted_wake_locks.stat.max_time = ++ ktime_add(deleted_wake_locks.stat.max_time, ++ lock->stat.max_time); ++ } ++#endif ++ list_del(&lock->link); ++ spin_unlock_irqrestore(&list_lock, irqflags); ++} ++EXPORT_SYMBOL(wake_lock_destroy); ++ ++static void wake_lock_internal( ++ struct wake_lock *lock, long timeout, int has_timeout) ++{ ++ int type; ++ unsigned long irqflags; ++ long expire_in; ++ ++ spin_lock_irqsave(&list_lock, irqflags); ++ type = lock->flags & WAKE_LOCK_TYPE_MASK; ++ BUG_ON(type >= WAKE_LOCK_TYPE_COUNT); ++ BUG_ON(!(lock->flags & WAKE_LOCK_INITIALIZED)); ++#ifdef CONFIG_WAKELOCK_STAT ++ if (type == WAKE_LOCK_SUSPEND && wait_for_wakeup) { ++ if (debug_mask & DEBUG_WAKEUP) ++ pr_info("wakeup wake lock: %s\n", lock->name); ++ wait_for_wakeup = 0; ++ lock->stat.wakeup_count++; ++ } ++ if ((lock->flags & WAKE_LOCK_AUTO_EXPIRE) && ++ (long)(lock->expires - jiffies) <= 0) { ++ wake_unlock_stat_locked(lock, 0); ++ lock->stat.last_time = ktime_get(); ++ } ++#endif ++ if (!(lock->flags & WAKE_LOCK_ACTIVE)) { ++ lock->flags |= WAKE_LOCK_ACTIVE; ++#ifdef CONFIG_WAKELOCK_STAT ++ lock->stat.last_time = ktime_get(); ++#endif ++ } ++ list_del(&lock->link); ++ if (has_timeout) { ++ if (debug_mask & DEBUG_WAKE_LOCK) ++ pr_info("wake_lock: %s, type %d, timeout %ld.%03lu\n", ++ lock->name, type, timeout / HZ, ++ (timeout % HZ) * MSEC_PER_SEC / HZ); ++ lock->expires = jiffies + timeout; ++ lock->flags |= WAKE_LOCK_AUTO_EXPIRE; ++ list_add_tail(&lock->link, &active_wake_locks[type]); ++ } else { ++ if (debug_mask & DEBUG_WAKE_LOCK) ++ pr_info("wake_lock: %s, type %d\n", lock->name, type); ++ lock->expires = LONG_MAX; ++ lock->flags &= ~WAKE_LOCK_AUTO_EXPIRE; ++ list_add(&lock->link, &active_wake_locks[type]); ++ } ++ if (type == WAKE_LOCK_SUSPEND) { ++ current_event_num++; ++#ifdef CONFIG_WAKELOCK_STAT ++ if (lock == &main_wake_lock) ++ update_sleep_wait_stats_locked(1); ++ else if (!wake_lock_active(&main_wake_lock)) ++ update_sleep_wait_stats_locked(0); ++#endif ++ if (has_timeout) ++ expire_in = has_wake_lock_locked(type); ++ else ++ expire_in = -1; ++ if (expire_in > 0) { ++ if (debug_mask & DEBUG_EXPIRE) ++ pr_info("wake_lock: %s, start expire timer, " ++ "%ld\n", lock->name, expire_in); ++ mod_timer(&expire_timer, jiffies + expire_in); ++ } else { ++ if (del_timer(&expire_timer)) ++ if (debug_mask & DEBUG_EXPIRE) ++ pr_info("wake_lock: %s, stop expire timer\n", ++ lock->name); ++ if (expire_in == 0) ++ queue_work(suspend_work_queue, &suspend_work); ++ } ++ } ++ spin_unlock_irqrestore(&list_lock, irqflags); ++} ++ ++void wake_lock(struct wake_lock *lock) ++{ ++ wake_lock_internal(lock, 0, 0); ++} ++EXPORT_SYMBOL(wake_lock); ++ ++void wake_lock_timeout(struct wake_lock *lock, long timeout) ++{ ++ wake_lock_internal(lock, timeout, 1); ++} ++EXPORT_SYMBOL(wake_lock_timeout); ++ ++void wake_unlock(struct wake_lock *lock) ++{ ++ int type; ++ unsigned long irqflags; ++ spin_lock_irqsave(&list_lock, irqflags); ++ type = lock->flags & WAKE_LOCK_TYPE_MASK; ++#ifdef CONFIG_WAKELOCK_STAT ++ wake_unlock_stat_locked(lock, 0); ++#endif ++ if (debug_mask & DEBUG_WAKE_LOCK) ++ pr_info("wake_unlock: %s\n", lock->name); ++ lock->flags &= ~(WAKE_LOCK_ACTIVE | WAKE_LOCK_AUTO_EXPIRE); ++ list_del(&lock->link); ++ list_add(&lock->link, &inactive_locks); ++ if (type == WAKE_LOCK_SUSPEND) { ++ long has_lock = has_wake_lock_locked(type); ++ if (has_lock > 0) { ++ if (debug_mask & DEBUG_EXPIRE) ++ pr_info("wake_unlock: %s, start expire timer, " ++ "%ld\n", lock->name, has_lock); ++ mod_timer(&expire_timer, jiffies + has_lock); ++ } else { ++ if (del_timer(&expire_timer)) ++ if (debug_mask & DEBUG_EXPIRE) ++ pr_info("wake_unlock: %s, stop expire " ++ "timer\n", lock->name); ++ if (has_lock == 0) ++ queue_work(suspend_work_queue, &suspend_work); ++ } ++ if (lock == &main_wake_lock) { ++ if (debug_mask & DEBUG_SUSPEND) ++ print_active_locks(WAKE_LOCK_SUSPEND); ++#ifdef CONFIG_WAKELOCK_STAT ++ update_sleep_wait_stats_locked(0); ++#endif ++ } ++ } ++ spin_unlock_irqrestore(&list_lock, irqflags); ++} ++EXPORT_SYMBOL(wake_unlock); ++ ++int wake_lock_active(struct wake_lock *lock) ++{ ++ return !!(lock->flags & WAKE_LOCK_ACTIVE); ++} ++EXPORT_SYMBOL(wake_lock_active); ++ ++static int __init wakelocks_init(void) ++{ ++ int ret; ++ int i; ++ ++ for (i = 0; i < ARRAY_SIZE(active_wake_locks); i++) ++ INIT_LIST_HEAD(&active_wake_locks[i]); ++ ++#ifdef CONFIG_WAKELOCK_STAT ++ wake_lock_init(&deleted_wake_locks, WAKE_LOCK_SUSPEND, ++ "deleted_wake_locks"); ++#endif ++ wake_lock_init(&main_wake_lock, WAKE_LOCK_SUSPEND, "main"); ++ wake_lock(&main_wake_lock); ++ wake_lock_init(&unknown_wakeup, WAKE_LOCK_SUSPEND, "unknown_wakeups"); ++ ++ ret = platform_device_register(&power_device); ++ if (ret) { ++ pr_err("wakelocks_init: platform_device_register failed\n"); ++ goto err_platform_device_register; ++ } ++ ret = platform_driver_register(&power_driver); ++ if (ret) { ++ pr_err("wakelocks_init: platform_driver_register failed\n"); ++ goto err_platform_driver_register; ++ } ++ ++ suspend_work_queue = create_singlethread_workqueue("suspend"); ++ if (suspend_work_queue == NULL) { ++ ret = -ENOMEM; ++ goto err_suspend_work_queue; ++ } ++ ++#ifdef CONFIG_WAKELOCK_STAT ++ create_proc_read_entry("wakelocks", S_IRUGO, NULL, ++ wakelocks_read_proc, NULL); ++#endif ++ ++ return 0; ++ ++err_suspend_work_queue: ++ platform_driver_unregister(&power_driver); ++err_platform_driver_register: ++ platform_device_unregister(&power_device); ++err_platform_device_register: ++ wake_lock_destroy(&unknown_wakeup); ++ wake_lock_destroy(&main_wake_lock); ++#ifdef CONFIG_WAKELOCK_STAT ++ wake_lock_destroy(&deleted_wake_locks); ++#endif ++ return ret; ++} ++ ++static void __exit wakelocks_exit(void) ++{ ++#ifdef CONFIG_WAKELOCK_STAT ++ remove_proc_entry("wakelocks", NULL); ++#endif ++ destroy_workqueue(suspend_work_queue); ++ platform_driver_unregister(&power_driver); ++ platform_device_unregister(&power_device); ++ wake_lock_destroy(&unknown_wakeup); ++ wake_lock_destroy(&main_wake_lock); ++#ifdef CONFIG_WAKELOCK_STAT ++ wake_lock_destroy(&deleted_wake_locks); ++#endif ++} ++ ++core_initcall(wakelocks_init); ++module_exit(wakelocks_exit); diff --git a/target/linux/goldfish/patches-2.6.30/0067-PM-Implement-early-suspend-api.patch b/target/linux/goldfish/patches-2.6.30/0067-PM-Implement-early-suspend-api.patch new file mode 100644 index 0000000000..0fc0cc1bbf --- /dev/null +++ b/target/linux/goldfish/patches-2.6.30/0067-PM-Implement-early-suspend-api.patch @@ -0,0 +1,244 @@ +From 2d4a25785ad1aa51bad967543e1ab20e9ed4a046 Mon Sep 17 00:00:00 2001 +From: =?utf-8?q?Arve=20Hj=C3=B8nnev=C3=A5g?= <arve@android.com> +Date: Tue, 7 Oct 2008 20:48:01 -0700 +Subject: [PATCH 067/134] PM: Implement early suspend api + +--- + kernel/power/Kconfig | 12 +++ + kernel/power/Makefile | 1 + + kernel/power/earlysuspend.c | 178 +++++++++++++++++++++++++++++++++++++++++++ + kernel/power/power.h | 6 ++ + 4 files changed, 197 insertions(+), 0 deletions(-) + create mode 100644 kernel/power/earlysuspend.c + +--- a/kernel/power/Kconfig ++++ b/kernel/power/Kconfig +@@ -119,6 +119,9 @@ config SUSPEND_FREEZER + config HAS_WAKELOCK + bool + ++config HAS_EARLYSUSPEND ++ bool ++ + config WAKELOCK + bool "Wake lock" + depends on PM && RTC_CLASS +@@ -135,6 +138,15 @@ config WAKELOCK_STAT + ---help--- + Report wake lock stats in /proc/wakelocks + ++config EARLYSUSPEND ++ bool "Early suspend" ++ depends on WAKELOCK ++ default y ++ select HAS_EARLYSUSPEND ++ ---help--- ++ Call early suspend handlers when the user requested sleep state ++ changes. ++ + config HIBERNATION + bool "Hibernation (aka 'suspend to disk')" + depends on PM && SWAP && ARCH_HIBERNATION_POSSIBLE +--- a/kernel/power/Makefile ++++ b/kernel/power/Makefile +@@ -7,6 +7,7 @@ obj-$(CONFIG_PM) += main.o + obj-$(CONFIG_PM_SLEEP) += console.o + obj-$(CONFIG_FREEZER) += process.o + obj-$(CONFIG_WAKELOCK) += wakelock.o ++obj-$(CONFIG_EARLYSUSPEND) += earlysuspend.o + obj-$(CONFIG_HIBERNATION) += swsusp.o disk.o snapshot.o swap.o user.o + + obj-$(CONFIG_MAGIC_SYSRQ) += poweroff.o +--- /dev/null ++++ b/kernel/power/earlysuspend.c +@@ -0,0 +1,178 @@ ++/* kernel/power/earlysuspend.c ++ * ++ * Copyright (C) 2005-2008 Google, Inc. ++ * ++ * This software is licensed under the terms of the GNU General Public ++ * License version 2, as published by the Free Software Foundation, and ++ * may be copied, distributed, and modified under those terms. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ * ++ */ ++ ++#include <linux/earlysuspend.h> ++#include <linux/module.h> ++#include <linux/mutex.h> ++#include <linux/rtc.h> ++#include <linux/syscalls.h> /* sys_sync */ ++#include <linux/wakelock.h> ++#include <linux/workqueue.h> ++ ++#include "power.h" ++ ++enum { ++ DEBUG_USER_STATE = 1U << 0, ++ DEBUG_SUSPEND = 1U << 2, ++}; ++static int debug_mask = DEBUG_USER_STATE; ++module_param_named(debug_mask, debug_mask, int, S_IRUGO | S_IWUSR | S_IWGRP); ++ ++static DEFINE_MUTEX(early_suspend_lock); ++static LIST_HEAD(early_suspend_handlers); ++static void early_suspend(struct work_struct *work); ++static void late_resume(struct work_struct *work); ++static DECLARE_WORK(early_suspend_work, early_suspend); ++static DECLARE_WORK(late_resume_work, late_resume); ++static DEFINE_SPINLOCK(state_lock); ++enum { ++ SUSPEND_REQUESTED = 0x1, ++ SUSPENDED = 0x2, ++ SUSPEND_REQUESTED_AND_SUSPENDED = SUSPEND_REQUESTED | SUSPENDED, ++}; ++static int state; ++ ++void register_early_suspend(struct early_suspend *handler) ++{ ++ struct list_head *pos; ++ ++ mutex_lock(&early_suspend_lock); ++ list_for_each(pos, &early_suspend_handlers) { ++ struct early_suspend *e; ++ e = list_entry(pos, struct early_suspend, link); ++ if (e->level > handler->level) ++ break; ++ } ++ list_add_tail(&handler->link, pos); ++ if ((state & SUSPENDED) && handler->suspend) ++ handler->suspend(handler); ++ mutex_unlock(&early_suspend_lock); ++} ++EXPORT_SYMBOL(register_early_suspend); ++ ++void unregister_early_suspend(struct early_suspend *handler) ++{ ++ mutex_lock(&early_suspend_lock); ++ list_del(&handler->link); ++ mutex_unlock(&early_suspend_lock); ++} ++EXPORT_SYMBOL(unregister_early_suspend); ++ ++static void early_suspend(struct work_struct *work) ++{ ++ struct early_suspend *pos; ++ unsigned long irqflags; ++ int abort = 0; ++ ++ mutex_lock(&early_suspend_lock); ++ spin_lock_irqsave(&state_lock, irqflags); ++ if (state == SUSPEND_REQUESTED) ++ state |= SUSPENDED; ++ else ++ abort = 1; ++ spin_unlock_irqrestore(&state_lock, irqflags); ++ ++ if (abort) { ++ if (debug_mask & DEBUG_SUSPEND) ++ pr_info("early_suspend: abort, state %d\n", state); ++ mutex_unlock(&early_suspend_lock); ++ goto abort; ++ } ++ ++ if (debug_mask & DEBUG_SUSPEND) ++ pr_info("early_suspend: call handlers\n"); ++ list_for_each_entry(pos, &early_suspend_handlers, link) { ++ if (pos->suspend != NULL) ++ pos->suspend(pos); ++ } ++ mutex_unlock(&early_suspend_lock); ++ ++ if (debug_mask & DEBUG_SUSPEND) ++ pr_info("early_suspend: sync\n"); ++ ++ sys_sync(); ++abort: ++ spin_lock_irqsave(&state_lock, irqflags); ++ if (state == SUSPEND_REQUESTED_AND_SUSPENDED) ++ wake_unlock(&main_wake_lock); ++ spin_unlock_irqrestore(&state_lock, irqflags); ++} ++ ++static void late_resume(struct work_struct *work) ++{ ++ struct early_suspend *pos; ++ unsigned long irqflags; ++ int abort = 0; ++ ++ mutex_lock(&early_suspend_lock); ++ spin_lock_irqsave(&state_lock, irqflags); ++ if (state == SUSPENDED) ++ state &= ~SUSPENDED; ++ else ++ abort = 1; ++ spin_unlock_irqrestore(&state_lock, irqflags); ++ ++ if (abort) { ++ if (debug_mask & DEBUG_SUSPEND) ++ pr_info("late_resume: abort, state %d\n", state); ++ goto abort; ++ } ++ if (debug_mask & DEBUG_SUSPEND) ++ pr_info("late_resume: call handlers\n"); ++ list_for_each_entry_reverse(pos, &early_suspend_handlers, link) ++ if (pos->resume != NULL) ++ pos->resume(pos); ++ if (debug_mask & DEBUG_SUSPEND) ++ pr_info("late_resume: done\n"); ++abort: ++ mutex_unlock(&early_suspend_lock); ++} ++ ++void request_suspend_state(suspend_state_t new_state) ++{ ++ unsigned long irqflags; ++ int old_sleep; ++ ++ spin_lock_irqsave(&state_lock, irqflags); ++ old_sleep = state & SUSPEND_REQUESTED; ++ if (debug_mask & DEBUG_USER_STATE) { ++ struct timespec ts; ++ struct rtc_time tm; ++ getnstimeofday(&ts); ++ rtc_time_to_tm(ts.tv_sec, &tm); ++ pr_info("request_suspend_state: %s (%d->%d) at %lld " ++ "(%d-%02d-%02d %02d:%02d:%02d.%09lu UTC)\n", ++ new_state != PM_SUSPEND_ON ? "sleep" : "wakeup", ++ requested_suspend_state, new_state, ++ ktime_to_ns(ktime_get()), ++ tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday, ++ tm.tm_hour, tm.tm_min, tm.tm_sec, ts.tv_nsec); ++ } ++ if (!old_sleep && new_state != PM_SUSPEND_ON) { ++ state |= SUSPEND_REQUESTED; ++ queue_work(suspend_work_queue, &early_suspend_work); ++ } else if (old_sleep && new_state == PM_SUSPEND_ON) { ++ state &= ~SUSPEND_REQUESTED; ++ wake_lock(&main_wake_lock); ++ queue_work(suspend_work_queue, &late_resume_work); ++ } ++ requested_suspend_state = new_state; ++ spin_unlock_irqrestore(&state_lock, irqflags); ++} ++ ++suspend_state_t get_suspend_state(void) ++{ ++ return requested_suspend_state; ++} +--- a/kernel/power/power.h ++++ b/kernel/power/power.h +@@ -230,3 +230,9 @@ extern struct workqueue_struct *suspend_ + extern struct wake_lock main_wake_lock; + extern suspend_state_t requested_suspend_state; + #endif ++ ++#ifdef CONFIG_EARLYSUSPEND ++/* kernel/power/earlysuspend.c */ ++void request_suspend_state(suspend_state_t state); ++suspend_state_t get_suspend_state(void); ++#endif diff --git a/target/linux/goldfish/patches-2.6.30/0068-PM-Enable-early-suspend-through-sys-power-state.patch b/target/linux/goldfish/patches-2.6.30/0068-PM-Enable-early-suspend-through-sys-power-state.patch new file mode 100644 index 0000000000..84a95dba9f --- /dev/null +++ b/target/linux/goldfish/patches-2.6.30/0068-PM-Enable-early-suspend-through-sys-power-state.patch @@ -0,0 +1,52 @@ +From 7b236e69bb4403f20fbdef81907d46b4d32d4af8 Mon Sep 17 00:00:00 2001 +From: =?utf-8?q?Arve=20Hj=C3=B8nnev=C3=A5g?= <arve@android.com> +Date: Thu, 9 Oct 2008 19:17:11 -0700 +Subject: [PATCH 068/134] PM: Enable early suspend through /sys/power/state + +If EARLYSUSPEND is enabled then writes to /sys/power/state no longer +blocks, and the kernel will try to enter the requested state every +time no wakelocks are held. Write "on" to resume normal operation. +--- + kernel/power/main.c | 14 ++++++++++++++ + 1 files changed, 14 insertions(+), 0 deletions(-) + +--- a/kernel/power/main.c ++++ b/kernel/power/main.c +@@ -408,6 +408,9 @@ static void suspend_finish(void) + + + static const char * const pm_states[PM_SUSPEND_MAX] = { ++#ifdef CONFIG_EARLYSUSPEND ++ [PM_SUSPEND_ON] = "on", ++#endif + [PM_SUSPEND_STANDBY] = "standby", + [PM_SUSPEND_MEM] = "mem", + }; +@@ -525,7 +528,11 @@ static ssize_t state_store(struct kobjec + const char *buf, size_t n) + { + #ifdef CONFIG_SUSPEND ++#ifdef CONFIG_EARLYSUSPEND ++ suspend_state_t state = PM_SUSPEND_ON; ++#else + suspend_state_t state = PM_SUSPEND_STANDBY; ++#endif + const char * const *s; + #endif + char *p; +@@ -547,8 +554,15 @@ static ssize_t state_store(struct kobjec + break; + } + if (state < PM_SUSPEND_MAX && *s) ++#ifdef CONFIG_EARLYSUSPEND ++ if (state == PM_SUSPEND_ON || valid_state(state)) { ++ error = 0; ++ request_suspend_state(state); ++ } ++#else + error = enter_state(state); + #endif ++#endif + + Exit: + return error ? error : n; diff --git a/target/linux/goldfish/patches-2.6.30/0069-PM-Add-user-space-wake-lock-api.patch b/target/linux/goldfish/patches-2.6.30/0069-PM-Add-user-space-wake-lock-api.patch new file mode 100644 index 0000000000..c1d0125f11 --- /dev/null +++ b/target/linux/goldfish/patches-2.6.30/0069-PM-Add-user-space-wake-lock-api.patch @@ -0,0 +1,314 @@ +From 48e1af2bdd11204f11b3770a6c8d3eee64aee2e8 Mon Sep 17 00:00:00 2001 +From: =?utf-8?q?Arve=20Hj=C3=B8nnev=C3=A5g?= <arve@android.com> +Date: Thu, 9 Oct 2008 21:01:46 -0700 +Subject: [PATCH 069/134] PM: Add user-space wake lock api. + +This adds /sys/power/wake_lock and /sys/power/wake_unlock. +Writing a string to wake_lock creates a wake lock the +first time is sees a string and locks it. Optionally, the +string can be followed by a timeout. +To unlock the wake lock, write the same string to wake_unlock. +--- + kernel/power/Kconfig | 10 ++ + kernel/power/Makefile | 1 + + kernel/power/main.c | 9 ++ + kernel/power/power.h | 11 ++ + kernel/power/userwakelock.c | 218 +++++++++++++++++++++++++++++++++++++++++++ + 5 files changed, 249 insertions(+), 0 deletions(-) + create mode 100644 kernel/power/userwakelock.c + +--- a/kernel/power/Kconfig ++++ b/kernel/power/Kconfig +@@ -138,6 +138,16 @@ config WAKELOCK_STAT + ---help--- + Report wake lock stats in /proc/wakelocks + ++config USER_WAKELOCK ++ bool "Userspace wake locks" ++ depends on WAKELOCK ++ default y ++ ---help--- ++ User-space wake lock api. Write "lockname" or "lockname timeout" ++ to /sys/power/wake_lock lock and if needed create a wake lock. ++ Write "lockname" to /sys/power/wake_unlock to unlock a user wake ++ lock. ++ + config EARLYSUSPEND + bool "Early suspend" + depends on WAKELOCK +--- a/kernel/power/Makefile ++++ b/kernel/power/Makefile +@@ -7,6 +7,7 @@ obj-$(CONFIG_PM) += main.o + obj-$(CONFIG_PM_SLEEP) += console.o + obj-$(CONFIG_FREEZER) += process.o + obj-$(CONFIG_WAKELOCK) += wakelock.o ++obj-$(CONFIG_USER_WAKELOCK) += userwakelock.o + obj-$(CONFIG_EARLYSUSPEND) += earlysuspend.o + obj-$(CONFIG_HIBERNATION) += swsusp.o disk.o snapshot.o swap.o user.o + +--- a/kernel/power/main.c ++++ b/kernel/power/main.c +@@ -595,6 +595,11 @@ pm_trace_store(struct kobject *kobj, str + power_attr(pm_trace); + #endif /* CONFIG_PM_TRACE */ + ++#ifdef CONFIG_USER_WAKELOCK ++power_attr(wake_lock); ++power_attr(wake_unlock); ++#endif ++ + static struct attribute * g[] = { + &state_attr.attr, + #ifdef CONFIG_PM_TRACE +@@ -603,6 +608,10 @@ static struct attribute * g[] = { + #if defined(CONFIG_PM_SLEEP) && defined(CONFIG_PM_DEBUG) + &pm_test_attr.attr, + #endif ++#ifdef CONFIG_USER_WAKELOCK ++ &wake_lock_attr.attr, ++ &wake_unlock_attr.attr, ++#endif + NULL, + }; + +--- a/kernel/power/power.h ++++ b/kernel/power/power.h +@@ -231,6 +231,17 @@ extern struct wake_lock main_wake_lock; + extern suspend_state_t requested_suspend_state; + #endif + ++#ifdef CONFIG_USER_WAKELOCK ++ssize_t wake_lock_show(struct kobject *kobj, struct kobj_attribute *attr, ++ char *buf); ++ssize_t wake_lock_store(struct kobject *kobj, struct kobj_attribute *attr, ++ const char *buf, size_t n); ++ssize_t wake_unlock_show(struct kobject *kobj, struct kobj_attribute *attr, ++ char *buf); ++ssize_t wake_unlock_store(struct kobject *kobj, struct kobj_attribute *attr, ++ const char *buf, size_t n); ++#endif ++ + #ifdef CONFIG_EARLYSUSPEND + /* kernel/power/earlysuspend.c */ + void request_suspend_state(suspend_state_t state); +--- /dev/null ++++ b/kernel/power/userwakelock.c +@@ -0,0 +1,218 @@ ++/* kernel/power/userwakelock.c ++ * ++ * Copyright (C) 2005-2008 Google, Inc. ++ * ++ * This software is licensed under the terms of the GNU General Public ++ * License version 2, as published by the Free Software Foundation, and ++ * may be copied, distributed, and modified under those terms. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ * ++ */ ++ ++#include <linux/ctype.h> ++#include <linux/module.h> ++#include <linux/wakelock.h> ++ ++#include "power.h" ++ ++enum { ++ DEBUG_FAILURE = BIT(0), ++ DEBUG_ERROR = BIT(1), ++ DEBUG_NEW = BIT(2), ++ DEBUG_ACCESS = BIT(3), ++ DEBUG_LOOKUP = BIT(4), ++}; ++static int debug_mask = DEBUG_FAILURE; ++module_param_named(debug_mask, debug_mask, int, S_IRUGO | S_IWUSR | S_IWGRP); ++ ++static DEFINE_MUTEX(tree_lock); ++ ++struct user_wake_lock { ++ struct rb_node node; ++ struct wake_lock wake_lock; ++ char name[0]; ++}; ++struct rb_root user_wake_locks; ++ ++static struct user_wake_lock *lookup_wake_lock_name( ++ const char *buf, int allocate, long *timeoutptr) ++{ ++ struct rb_node **p = &user_wake_locks.rb_node; ++ struct rb_node *parent = NULL; ++ struct user_wake_lock *l; ++ int diff; ++ u64 timeout; ++ int name_len; ++ const char *arg; ++ ++ /* Find length of lock name and start of optional timeout string */ ++ arg = buf; ++ while (*arg && !isspace(*arg)) ++ arg++; ++ name_len = arg - buf; ++ if (!name_len) ++ goto bad_arg; ++ while (isspace(*arg)) ++ arg++; ++ ++ /* Process timeout string */ ++ if (timeoutptr && *arg) { ++ timeout = simple_strtoull(arg, (char **)&arg, 0); ++ while (isspace(*arg)) ++ arg++; ++ if (*arg) ++ goto bad_arg; ++ /* convert timeout from nanoseconds to jiffies > 0 */ ++ timeout += (NSEC_PER_SEC / HZ) - 1; ++ do_div(timeout, (NSEC_PER_SEC / HZ)); ++ if (timeout <= 0) ++ timeout = 1; ++ *timeoutptr = timeout; ++ } else if (*arg) ++ goto bad_arg; ++ else if (timeoutptr) ++ *timeoutptr = 0; ++ ++ /* Lookup wake lock in rbtree */ ++ while (*p) { ++ parent = *p; ++ l = rb_entry(parent, struct user_wake_lock, node); ++ diff = strncmp(buf, l->name, name_len); ++ if (!diff && l->name[name_len]) ++ diff = -1; ++ if (debug_mask & DEBUG_ERROR) ++ pr_info("lookup_wake_lock_name: compare %.*s %s %d\n", ++ name_len, buf, l->name, diff); ++ ++ if (diff < 0) ++ p = &(*p)->rb_left; ++ else if (diff > 0) ++ p = &(*p)->rb_right; ++ else ++ return l; ++ } ++ ++ /* Allocate and add new wakelock to rbtree */ ++ if (!allocate) { ++ if (debug_mask & DEBUG_ERROR) ++ pr_info("lookup_wake_lock_name: %.*s not found\n", ++ name_len, buf); ++ return ERR_PTR(-EINVAL); ++ } ++ l = kzalloc(sizeof(*l) + name_len + 1, GFP_KERNEL); ++ if (l == NULL) { ++ if (debug_mask & DEBUG_FAILURE) ++ pr_err("lookup_wake_lock_name: failed to allocate " ++ "memory for %.*s\n", name_len, buf); ++ return ERR_PTR(-ENOMEM); ++ } ++ memcpy(l->name, buf, name_len); ++ if (debug_mask & DEBUG_NEW) ++ pr_info("lookup_wake_lock_name: new wake lock %s\n", l->name); ++ wake_lock_init(&l->wake_lock, WAKE_LOCK_SUSPEND, l->name); ++ rb_link_node(&l->node, parent, p); ++ rb_insert_color(&l->node, &user_wake_locks); ++ return l; ++ ++bad_arg: ++ if (debug_mask & DEBUG_ERROR) ++ pr_info("lookup_wake_lock_name: wake lock, %.*s, bad arg, %s\n", ++ name_len, buf, arg); ++ return ERR_PTR(-EINVAL); ++} ++ ++ssize_t wake_lock_show( ++ struct kobject *kobj, struct kobj_attribute *attr, char *buf) ++{ ++ char *s = buf; ++ char *end = buf + PAGE_SIZE; ++ struct rb_node *n; ++ struct user_wake_lock *l; ++ ++ mutex_lock(&tree_lock); ++ ++ for (n = rb_first(&user_wake_locks); n != NULL; n = rb_next(n)) { ++ l = rb_entry(n, struct user_wake_lock, node); ++ if (wake_lock_active(&l->wake_lock)) ++ s += scnprintf(s, end - s, "%s ", l->name); ++ } ++ s += scnprintf(s, end - s, "\n"); ++ ++ mutex_unlock(&tree_lock); ++ return (s - buf); ++} ++ ++ssize_t wake_lock_store( ++ struct kobject *kobj, struct kobj_attribute *attr, ++ const char *buf, size_t n) ++{ ++ long timeout; ++ struct user_wake_lock *l; ++ ++ mutex_lock(&tree_lock); ++ l = lookup_wake_lock_name(buf, 1, &timeout); ++ if (IS_ERR(l)) { ++ n = PTR_ERR(l); ++ goto bad_name; ++ } ++ ++ if (debug_mask & DEBUG_ACCESS) ++ pr_info("wake_lock_store: %s, timeout %ld\n", l->name, timeout); ++ ++ if (timeout) ++ wake_lock_timeout(&l->wake_lock, timeout); ++ else ++ wake_lock(&l->wake_lock); ++bad_name: ++ mutex_unlock(&tree_lock); ++ return n; ++} ++ ++ ++ssize_t wake_unlock_show( ++ struct kobject *kobj, struct kobj_attribute *attr, char *buf) ++{ ++ char *s = buf; ++ char *end = buf + PAGE_SIZE; ++ struct rb_node *n; ++ struct user_wake_lock *l; ++ ++ mutex_lock(&tree_lock); ++ ++ for (n = rb_first(&user_wake_locks); n != NULL; n = rb_next(n)) { ++ l = rb_entry(n, struct user_wake_lock, node); ++ if (!wake_lock_active(&l->wake_lock)) ++ s += scnprintf(s, end - s, "%s ", l->name); ++ } ++ s += scnprintf(s, end - s, "\n"); ++ ++ mutex_unlock(&tree_lock); ++ return (s - buf); ++} ++ ++ssize_t wake_unlock_store( ++ struct kobject *kobj, struct kobj_attribute *attr, ++ const char *buf, size_t n) ++{ ++ struct user_wake_lock *l; ++ ++ mutex_lock(&tree_lock); ++ l = lookup_wake_lock_name(buf, 0, NULL); ++ if (IS_ERR(l)) { ++ n = PTR_ERR(l); ++ goto not_found; ++ } ++ ++ if (debug_mask & DEBUG_ACCESS) ++ pr_info("wake_unlock_store: %s\n", l->name); ++ ++ wake_unlock(&l->wake_lock); ++not_found: ++ mutex_unlock(&tree_lock); ++ return n; ++} ++ diff --git a/target/linux/goldfish/patches-2.6.30/0070-PM-wakelock-Abort-task-freezing-if-a-wake-lock-is.patch b/target/linux/goldfish/patches-2.6.30/0070-PM-wakelock-Abort-task-freezing-if-a-wake-lock-is.patch new file mode 100644 index 0000000000..a93df9ad41 --- /dev/null +++ b/target/linux/goldfish/patches-2.6.30/0070-PM-wakelock-Abort-task-freezing-if-a-wake-lock-is.patch @@ -0,0 +1,64 @@ +From 3f8e407c418205252f00615da4d0182e8c960344 Mon Sep 17 00:00:00 2001 +From: =?utf-8?q?Arve=20Hj=C3=B8nnev=C3=A5g?= <arve@android.com> +Date: Tue, 14 Oct 2008 16:02:39 -0700 +Subject: [PATCH 070/134] PM: wakelock: Abort task freezing if a wake lock is held. + +Avoids a problem where the device sometimes hangs for 20 seconds +before the screen is turned on. +--- + kernel/power/process.c | 23 ++++++++++++++++++----- + 1 files changed, 18 insertions(+), 5 deletions(-) + +--- a/kernel/power/process.c ++++ b/kernel/power/process.c +@@ -13,6 +13,7 @@ + #include <linux/module.h> + #include <linux/syscalls.h> + #include <linux/freezer.h> ++#include <linux/wakelock.h> + + /* + * Timeout for stopping processes +@@ -36,6 +37,7 @@ static int try_to_freeze_tasks(bool sig_ + struct timeval start, end; + u64 elapsed_csecs64; + unsigned int elapsed_csecs; ++ unsigned int wakeup = 0; + + do_gettimeofday(&start); + +@@ -62,6 +64,10 @@ static int try_to_freeze_tasks(bool sig_ + } while_each_thread(g, p); + read_unlock(&tasklist_lock); + yield(); /* Yield is okay here */ ++ if (todo && has_wake_lock(WAKE_LOCK_SUSPEND)) { ++ wakeup = 1; ++ break; ++ } + if (time_after(jiffies, end_time)) + break; + } while (todo); +@@ -77,11 +83,18 @@ static int try_to_freeze_tasks(bool sig_ + * and caller must call thaw_processes() if something fails), + * but it cleans up leftover PF_FREEZE requests. + */ +- printk("\n"); +- printk(KERN_ERR "Freezing of tasks failed after %d.%02d seconds " +- "(%d tasks refusing to freeze):\n", +- elapsed_csecs / 100, elapsed_csecs % 100, todo); +- show_state(); ++ if(wakeup) { ++ printk("\n"); ++ printk(KERN_ERR "Freezing of %s aborted\n", ++ sig_only ? "user space " : "tasks "); ++ } ++ else { ++ printk("\n"); ++ printk(KERN_ERR "Freezing of tasks failed after %d.%02d seconds " ++ "(%d tasks refusing to freeze):\n", ++ elapsed_csecs / 100, elapsed_csecs % 100, todo); ++ show_state(); ++ } + read_lock(&tasklist_lock); + do_each_thread(g, p) { + task_lock(p); diff --git a/target/linux/goldfish/patches-2.6.30/0071-PM-earlysuspend-Add-console-switch-when-user-reque.patch b/target/linux/goldfish/patches-2.6.30/0071-PM-earlysuspend-Add-console-switch-when-user-reque.patch new file mode 100644 index 0000000000..602b92425a --- /dev/null +++ b/target/linux/goldfish/patches-2.6.30/0071-PM-earlysuspend-Add-console-switch-when-user-reque.patch @@ -0,0 +1,133 @@ +From 0083b2afe89dea4a06bfd967b164318ad0bccd11 Mon Sep 17 00:00:00 2001 +From: =?utf-8?q?Arve=20Hj=C3=B8nnev=C3=A5g?= <arve@android.com> +Date: Wed, 15 Oct 2008 17:52:20 -0700 +Subject: [PATCH 071/134] PM: earlysuspend: Add console switch when user requested sleep state changes. +MIME-Version: 1.0 +Content-Type: text/plain; charset=utf-8 +Content-Transfer-Encoding: 8bit + +Signed-off-by: Arve HjønnevÃ¥g <arve@android.com> +--- + kernel/power/Kconfig | 17 ++++++++ + kernel/power/Makefile | 1 + + kernel/power/consoleearlysuspend.c | 78 ++++++++++++++++++++++++++++++++++++ + 3 files changed, 96 insertions(+), 0 deletions(-) + create mode 100644 kernel/power/consoleearlysuspend.c + +--- a/kernel/power/Kconfig ++++ b/kernel/power/Kconfig +@@ -157,6 +157,23 @@ config EARLYSUSPEND + Call early suspend handlers when the user requested sleep state + changes. + ++choice ++ prompt "User-space screen access" ++ default CONSOLE_EARLYSUSPEND ++ depends on HAS_EARLYSUSPEND ++ ++ config NO_USER_SPACE_SCREEN_ACCESS_CONTROL ++ bool "None" ++ ++ config CONSOLE_EARLYSUSPEND ++ bool "Console switch on early-suspend" ++ depends on HAS_EARLYSUSPEND && VT ++ ---help--- ++ Register early suspend handler to perform a console switch to ++ when user-space should stop drawing to the screen and a switch ++ back when it should resume. ++endchoice ++ + config HIBERNATION + bool "Hibernation (aka 'suspend to disk')" + depends on PM && SWAP && ARCH_HIBERNATION_POSSIBLE +--- a/kernel/power/Makefile ++++ b/kernel/power/Makefile +@@ -9,6 +9,7 @@ obj-$(CONFIG_FREEZER) += process.o + obj-$(CONFIG_WAKELOCK) += wakelock.o + obj-$(CONFIG_USER_WAKELOCK) += userwakelock.o + obj-$(CONFIG_EARLYSUSPEND) += earlysuspend.o ++obj-$(CONFIG_CONSOLE_EARLYSUSPEND) += consoleearlysuspend.o + obj-$(CONFIG_HIBERNATION) += swsusp.o disk.o snapshot.o swap.o user.o + + obj-$(CONFIG_MAGIC_SYSRQ) += poweroff.o +--- /dev/null ++++ b/kernel/power/consoleearlysuspend.c +@@ -0,0 +1,78 @@ ++/* kernel/power/consoleearlysuspend.c ++ * ++ * Copyright (C) 2005-2008 Google, Inc. ++ * ++ * This software is licensed under the terms of the GNU General Public ++ * License version 2, as published by the Free Software Foundation, and ++ * may be copied, distributed, and modified under those terms. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ * ++ */ ++ ++#include <linux/console.h> ++#include <linux/earlysuspend.h> ++#include <linux/kbd_kern.h> ++#include <linux/module.h> ++#include <linux/vt_kern.h> ++#include <linux/wait.h> ++ ++#define EARLY_SUSPEND_CONSOLE (MAX_NR_CONSOLES-1) ++ ++static int orig_fgconsole; ++static void console_early_suspend(struct early_suspend *h) ++{ ++ acquire_console_sem(); ++ orig_fgconsole = fg_console; ++ if (vc_allocate(EARLY_SUSPEND_CONSOLE)) ++ goto err; ++ if (set_console(EARLY_SUSPEND_CONSOLE)) ++ goto err; ++ release_console_sem(); ++ ++ if (vt_waitactive(EARLY_SUSPEND_CONSOLE)) ++ pr_warning("console_early_suspend: Can't switch VCs.\n"); ++ return; ++err: ++ pr_warning("console_early_suspend: Can't set console\n"); ++ release_console_sem(); ++} ++ ++static void console_late_resume(struct early_suspend *h) ++{ ++ int ret; ++ acquire_console_sem(); ++ ret = set_console(orig_fgconsole); ++ release_console_sem(); ++ if (ret) { ++ pr_warning("console_late_resume: Can't set console.\n"); ++ return; ++ } ++ ++ if (vt_waitactive(orig_fgconsole)) ++ pr_warning("console_late_resume: Can't switch VCs.\n"); ++} ++ ++static struct early_suspend console_early_suspend_desc = { ++ .level = EARLY_SUSPEND_LEVEL_STOP_DRAWING, ++ .suspend = console_early_suspend, ++ .resume = console_late_resume, ++}; ++ ++static int __init console_early_suspend_init(void) ++{ ++ register_early_suspend(&console_early_suspend_desc); ++ return 0; ++} ++ ++static void __exit console_early_suspend_exit(void) ++{ ++ unregister_early_suspend(&console_early_suspend_desc); ++} ++ ++module_init(console_early_suspend_init); ++module_exit(console_early_suspend_exit); ++ diff --git a/target/linux/goldfish/patches-2.6.30/0072-PM-earlysuspend-Removing-dependence-on-console.patch b/target/linux/goldfish/patches-2.6.30/0072-PM-earlysuspend-Removing-dependence-on-console.patch new file mode 100644 index 0000000000..489cfc0f48 --- /dev/null +++ b/target/linux/goldfish/patches-2.6.30/0072-PM-earlysuspend-Removing-dependence-on-console.patch @@ -0,0 +1,217 @@ +From ba801aa66e869f1f9f9d3a1610a2165baa024e4b Mon Sep 17 00:00:00 2001 +From: Rebecca Schultz <rschultz@google.com> +Date: Thu, 17 Jul 2008 18:14:55 -0700 +Subject: [PATCH 072/134] PM: earlysuspend: Removing dependence on console. +MIME-Version: 1.0 +Content-Type: text/plain; charset=utf-8 +Content-Transfer-Encoding: 8bit + +Rather than signaling a full update of the display from userspace via a +console switch, this patch introduces 2 files int /sys/power, +wait_for_fb_sleep and wait_for_fb_wake. Reading these files will block +until the requested state has been entered. When a read from +wait_for_fb_sleep returns userspace should stop drawing. When +wait_for_fb_wake returns, it should do a full update. If either are called +when the fb driver is already in the requested state, they will return +immediately. + +Signed-off-by: Rebecca Schultz <rschultz@google.com> +Signed-off-by: Arve HjønnevÃ¥g <arve@android.com> +--- + kernel/power/Kconfig | 9 +++ + kernel/power/Makefile | 1 + + kernel/power/fbearlysuspend.c | 153 +++++++++++++++++++++++++++++++++++++++++ + 3 files changed, 163 insertions(+), 0 deletions(-) + create mode 100644 kernel/power/fbearlysuspend.c + +--- a/kernel/power/Kconfig ++++ b/kernel/power/Kconfig +@@ -159,6 +159,7 @@ config EARLYSUSPEND + + choice + prompt "User-space screen access" ++ default FB_EARLYSUSPEND if !FRAMEBUFFER_CONSOLE + default CONSOLE_EARLYSUSPEND + depends on HAS_EARLYSUSPEND + +@@ -172,6 +173,14 @@ choice + Register early suspend handler to perform a console switch to + when user-space should stop drawing to the screen and a switch + back when it should resume. ++ ++ config FB_EARLYSUSPEND ++ bool "Sysfs interface" ++ depends on HAS_EARLYSUSPEND ++ ---help--- ++ Register early suspend handler that notifies and waits for ++ user-space through sysfs when user-space should stop drawing ++ to the screen and notifies user-space when it should resume. + endchoice + + config HIBERNATION +--- a/kernel/power/Makefile ++++ b/kernel/power/Makefile +@@ -10,6 +10,7 @@ obj-$(CONFIG_WAKELOCK) += wakelock.o + obj-$(CONFIG_USER_WAKELOCK) += userwakelock.o + obj-$(CONFIG_EARLYSUSPEND) += earlysuspend.o + obj-$(CONFIG_CONSOLE_EARLYSUSPEND) += consoleearlysuspend.o ++obj-$(CONFIG_FB_EARLYSUSPEND) += fbearlysuspend.o + obj-$(CONFIG_HIBERNATION) += swsusp.o disk.o snapshot.o swap.o user.o + + obj-$(CONFIG_MAGIC_SYSRQ) += poweroff.o +--- /dev/null ++++ b/kernel/power/fbearlysuspend.c +@@ -0,0 +1,153 @@ ++/* kernel/power/fbearlysuspend.c ++ * ++ * Copyright (C) 2005-2008 Google, Inc. ++ * ++ * This software is licensed under the terms of the GNU General Public ++ * License version 2, as published by the Free Software Foundation, and ++ * may be copied, distributed, and modified under those terms. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ * ++ */ ++ ++#include <linux/earlysuspend.h> ++#include <linux/module.h> ++#include <linux/wait.h> ++ ++#include "power.h" ++ ++static wait_queue_head_t fb_state_wq; ++static DEFINE_SPINLOCK(fb_state_lock); ++static enum { ++ FB_STATE_STOPPED_DRAWING, ++ FB_STATE_REQUEST_STOP_DRAWING, ++ FB_STATE_DRAWING_OK, ++} fb_state; ++ ++/* tell userspace to stop drawing, wait for it to stop */ ++static void stop_drawing_early_suspend(struct early_suspend *h) ++{ ++ int ret; ++ unsigned long irq_flags; ++ ++ spin_lock_irqsave(&fb_state_lock, irq_flags); ++ fb_state = FB_STATE_REQUEST_STOP_DRAWING; ++ spin_unlock_irqrestore(&fb_state_lock, irq_flags); ++ ++ wake_up_all(&fb_state_wq); ++ ret = wait_event_timeout(fb_state_wq, ++ fb_state == FB_STATE_STOPPED_DRAWING, ++ HZ); ++ if (unlikely(fb_state != FB_STATE_STOPPED_DRAWING)) ++ pr_warning("stop_drawing_early_suspend: timeout waiting for " ++ "userspace to stop drawing\n"); ++} ++ ++/* tell userspace to start drawing */ ++static void start_drawing_late_resume(struct early_suspend *h) ++{ ++ unsigned long irq_flags; ++ ++ spin_lock_irqsave(&fb_state_lock, irq_flags); ++ fb_state = FB_STATE_DRAWING_OK; ++ spin_unlock_irqrestore(&fb_state_lock, irq_flags); ++ wake_up(&fb_state_wq); ++} ++ ++static struct early_suspend stop_drawing_early_suspend_desc = { ++ .level = EARLY_SUSPEND_LEVEL_STOP_DRAWING, ++ .suspend = stop_drawing_early_suspend, ++ .resume = start_drawing_late_resume, ++}; ++ ++static ssize_t wait_for_fb_sleep_show(struct kobject *kobj, ++ struct kobj_attribute *attr, char *buf) ++{ ++ char *s = buf; ++ int ret; ++ ++ ret = wait_event_interruptible(fb_state_wq, ++ fb_state != FB_STATE_DRAWING_OK); ++ if (ret && fb_state == FB_STATE_DRAWING_OK) ++ return ret; ++ else ++ s += sprintf(buf, "sleeping"); ++ return s - buf; ++} ++ ++static ssize_t wait_for_fb_wake_show(struct kobject *kobj, ++ struct kobj_attribute *attr, char *buf) ++{ ++ char *s = buf; ++ int ret; ++ unsigned long irq_flags; ++ ++ spin_lock_irqsave(&fb_state_lock, irq_flags); ++ if (fb_state == FB_STATE_REQUEST_STOP_DRAWING) { ++ fb_state = FB_STATE_STOPPED_DRAWING; ++ wake_up(&fb_state_wq); ++ } ++ spin_unlock_irqrestore(&fb_state_lock, irq_flags); ++ ++ ret = wait_event_interruptible(fb_state_wq, ++ fb_state == FB_STATE_DRAWING_OK); ++ if (ret && fb_state != FB_STATE_DRAWING_OK) ++ return ret; ++ else ++ s += sprintf(buf, "awake"); ++ ++ return s - buf; ++} ++ ++#define power_ro_attr(_name) \ ++static struct kobj_attribute _name##_attr = { \ ++ .attr = { \ ++ .name = __stringify(_name), \ ++ .mode = 0444, \ ++ }, \ ++ .show = _name##_show, \ ++ .store = NULL, \ ++} ++ ++power_ro_attr(wait_for_fb_sleep); ++power_ro_attr(wait_for_fb_wake); ++ ++static struct attribute *g[] = { ++ &wait_for_fb_sleep_attr.attr, ++ &wait_for_fb_wake_attr.attr, ++ NULL, ++}; ++ ++static struct attribute_group attr_group = { ++ .attrs = g, ++}; ++ ++static int __init android_power_init(void) ++{ ++ int ret; ++ ++ init_waitqueue_head(&fb_state_wq); ++ fb_state = FB_STATE_DRAWING_OK; ++ ++ ret = sysfs_create_group(power_kobj, &attr_group); ++ if (ret) { ++ pr_err("android_power_init: sysfs_create_group failed\n"); ++ return ret; ++ } ++ ++ register_early_suspend(&stop_drawing_early_suspend_desc); ++ return 0; ++} ++ ++static void __exit android_power_exit(void) ++{ ++ unregister_early_suspend(&stop_drawing_early_suspend_desc); ++ sysfs_remove_group(power_kobj, &attr_group); ++} ++ ++module_init(android_power_init); ++module_exit(android_power_exit); ++ diff --git a/target/linux/goldfish/patches-2.6.30/0081-net-socket-ioctl-to-reset-connections-matching-loca.patch b/target/linux/goldfish/patches-2.6.30/0081-net-socket-ioctl-to-reset-connections-matching-loca.patch new file mode 100644 index 0000000000..fdffc507a0 --- /dev/null +++ b/target/linux/goldfish/patches-2.6.30/0081-net-socket-ioctl-to-reset-connections-matching-loca.patch @@ -0,0 +1,132 @@ +From 2df5996350da51bcdee798c00ae1f2415fd9ad20 Mon Sep 17 00:00:00 2001 +From: Robert Love <rlove@google.com> +Date: Mon, 12 May 2008 17:08:29 -0400 +Subject: [PATCH 081/134] net: socket ioctl to reset connections matching local address + +Introduce a new socket ioctl, SIOCKILLADDR, that nukes all sockets +bound to the same local address. This is useful in situations with +dynamic IPs, to kill stuck connections. + +Signed-off-by: Brian Swetland <swetland@google.com> + +net: fix tcp_v4_nuke_addr + +Signed-off-by: Dima Zavin <dima@android.com> +--- + include/linux/sockios.h | 1 + + include/net/tcp.h | 2 ++ + net/ipv4/af_inet.c | 1 + + net/ipv4/devinet.c | 9 ++++++++- + net/ipv4/tcp_ipv4.c | 31 +++++++++++++++++++++++++++++++ + 5 files changed, 43 insertions(+), 1 deletions(-) + +--- a/include/linux/sockios.h ++++ b/include/linux/sockios.h +@@ -65,6 +65,7 @@ + #define SIOCDIFADDR 0x8936 /* delete PA address */ + #define SIOCSIFHWBROADCAST 0x8937 /* set hardware broadcast addr */ + #define SIOCGIFCOUNT 0x8938 /* get number of devices */ ++#define SIOCKILLADDR 0x8939 /* kill sockets with this local addr */ + + #define SIOCGIFBR 0x8940 /* Bridging support */ + #define SIOCSIFBR 0x8941 /* Set bridging options */ +--- a/include/net/tcp.h ++++ b/include/net/tcp.h +@@ -1381,6 +1381,8 @@ extern struct sk_buff **tcp4_gro_receive + extern int tcp_gro_complete(struct sk_buff *skb); + extern int tcp4_gro_complete(struct sk_buff *skb); + ++extern void tcp_v4_nuke_addr(__u32 saddr); ++ + #ifdef CONFIG_PROC_FS + extern int tcp4_proc_init(void); + extern void tcp4_proc_exit(void); +--- a/net/ipv4/af_inet.c ++++ b/net/ipv4/af_inet.c +@@ -825,6 +825,7 @@ int inet_ioctl(struct socket *sock, unsi + case SIOCSIFPFLAGS: + case SIOCGIFPFLAGS: + case SIOCSIFFLAGS: ++ case SIOCKILLADDR: + err = devinet_ioctl(net, cmd, (void __user *)arg); + break; + default: +--- a/net/ipv4/devinet.c ++++ b/net/ipv4/devinet.c +@@ -57,6 +57,7 @@ + + #include <net/arp.h> + #include <net/ip.h> ++#include <net/tcp.h> + #include <net/route.h> + #include <net/ip_fib.h> + #include <net/rtnetlink.h> +@@ -631,6 +632,7 @@ int devinet_ioctl(struct net *net, unsig + case SIOCSIFBRDADDR: /* Set the broadcast address */ + case SIOCSIFDSTADDR: /* Set the destination address */ + case SIOCSIFNETMASK: /* Set the netmask for the interface */ ++ case SIOCKILLADDR: /* Nuke all sockets on this address */ + ret = -EACCES; + if (!capable(CAP_NET_ADMIN)) + goto out; +@@ -680,7 +682,8 @@ int devinet_ioctl(struct net *net, unsig + } + + ret = -EADDRNOTAVAIL; +- if (!ifa && cmd != SIOCSIFADDR && cmd != SIOCSIFFLAGS) ++ if (!ifa && cmd != SIOCSIFADDR && cmd != SIOCSIFFLAGS ++ && cmd != SIOCKILLADDR) + goto done; + + switch (cmd) { +@@ -804,6 +807,10 @@ int devinet_ioctl(struct net *net, unsig + inet_insert_ifa(ifa); + } + break; ++ case SIOCKILLADDR: /* Nuke all connections on this address */ ++ ret = 0; ++ tcp_v4_nuke_addr(sin->sin_addr.s_addr); ++ break; + } + done: + rtnl_unlock(); +--- a/net/ipv4/tcp_ipv4.c ++++ b/net/ipv4/tcp_ipv4.c +@@ -1845,6 +1845,37 @@ void tcp_v4_destroy_sock(struct sock *sk + + EXPORT_SYMBOL(tcp_v4_destroy_sock); + ++/* ++ * tcp_v4_nuke_addr - destroy all sockets on the given local address ++ */ ++void tcp_v4_nuke_addr(__u32 saddr) ++{ ++ unsigned int bucket; ++ ++ for (bucket = 0; bucket < tcp_hashinfo.ehash_size; bucket++) { ++ struct hlist_nulls_node *node; ++ struct sock *sk; ++ spinlock_t *lock = inet_ehash_lockp(&tcp_hashinfo, bucket); ++ ++ spin_lock_bh(lock); ++ sk_nulls_for_each(sk, node, &tcp_hashinfo.ehash[bucket].chain) { ++ struct inet_sock *inet = inet_sk(sk); ++ ++ if (inet->rcv_saddr != saddr) ++ continue; ++ if (sysctl_ip_dynaddr && sk->sk_state == TCP_SYN_SENT) ++ continue; ++ if (sock_flag(sk, SOCK_DEAD)) ++ continue; ++ ++ sk->sk_err = ETIMEDOUT; ++ sk->sk_error_report(sk); ++ tcp_done(sk); ++ } ++ spin_unlock_bh(lock); ++ } ++} ++ + #ifdef CONFIG_PROC_FS + /* Proc filesystem TCP sock list dumping. */ + diff --git a/target/linux/goldfish/patches-2.6.30/0082-sysfs_net_ipv4-Add-sysfs-based-knobs-for-controllin.patch b/target/linux/goldfish/patches-2.6.30/0082-sysfs_net_ipv4-Add-sysfs-based-knobs-for-controllin.patch new file mode 100644 index 0000000000..f1fce089c6 --- /dev/null +++ b/target/linux/goldfish/patches-2.6.30/0082-sysfs_net_ipv4-Add-sysfs-based-knobs-for-controllin.patch @@ -0,0 +1,128 @@ +From 75090d40ffbd9b4863238e1d62b43f8598da5e5e Mon Sep 17 00:00:00 2001 +From: Robert Love <rlove@google.com> +Date: Thu, 31 Jul 2008 11:12:44 -0400 +Subject: [PATCH 082/134] sysfs_net_ipv4: Add sysfs-based knobs for controlling TCP window size + +Add a family of knobs to /sys/kernel/ipv4 for controlling the TCP window size: + + tcp_wmem_min + tcp_wmem_def + tcp_wmem_max + tcp_rmem_min + tcp_rmem_def + tcp_rmem_max + +This six values mirror the sysctl knobs in /proc/sys/net/ipv4/tcp_wmem and +/proc/sys/net/ipv4/tcp_rmem. + +Sysfs, unlike sysctl, allows us to set and manage the files' permissions and +owners. + +Signed-off-by: Robert Love <rlove@google.com> +--- + net/ipv4/Makefile | 1 + + net/ipv4/sysfs_net_ipv4.c | 88 +++++++++++++++++++++++++++++++++++++++++++++ + 2 files changed, 89 insertions(+), 0 deletions(-) + create mode 100644 net/ipv4/sysfs_net_ipv4.c + +--- a/net/ipv4/Makefile ++++ b/net/ipv4/Makefile +@@ -14,6 +14,7 @@ obj-y := route.o inetpeer.o protocol + inet_fragment.o + + obj-$(CONFIG_SYSCTL) += sysctl_net_ipv4.o ++obj-$(CONFIG_SYSFS) += sysfs_net_ipv4.o + obj-$(CONFIG_IP_FIB_HASH) += fib_hash.o + obj-$(CONFIG_IP_FIB_TRIE) += fib_trie.o + obj-$(CONFIG_PROC_FS) += proc.o +--- /dev/null ++++ b/net/ipv4/sysfs_net_ipv4.c +@@ -0,0 +1,88 @@ ++/* ++ * net/ipv4/sysfs_net_ipv4.c ++ * ++ * sysfs-based networking knobs (so we can, unlike with sysctl, control perms) ++ * ++ * Copyright (C) 2008 Google, Inc. ++ * ++ * Robert Love <rlove@google.com> ++ * ++ * This software is licensed under the terms of the GNU General Public ++ * License version 2, as published by the Free Software Foundation, and ++ * may be copied, distributed, and modified under those terms. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ */ ++ ++#include <linux/kobject.h> ++#include <linux/string.h> ++#include <linux/sysfs.h> ++#include <linux/init.h> ++#include <net/tcp.h> ++ ++#define CREATE_IPV4_FILE(_name, _var) \ ++static ssize_t _name##_show(struct kobject *kobj, \ ++ struct kobj_attribute *attr, char *buf) \ ++{ \ ++ return sprintf(buf, "%d\n", _var); \ ++} \ ++static ssize_t _name##_store(struct kobject *kobj, \ ++ struct kobj_attribute *attr, \ ++ const char *buf, size_t count) \ ++{ \ ++ int val, ret; \ ++ ret = sscanf(buf, "%d", &val); \ ++ if (ret != 1) \ ++ return -EINVAL; \ ++ if (val < 0) \ ++ return -EINVAL; \ ++ _var = val; \ ++ return count; \ ++} \ ++static struct kobj_attribute _name##_attr = \ ++ __ATTR(_name, 0644, _name##_show, _name##_store) ++ ++CREATE_IPV4_FILE(tcp_wmem_min, sysctl_tcp_wmem[0]); ++CREATE_IPV4_FILE(tcp_wmem_def, sysctl_tcp_wmem[1]); ++CREATE_IPV4_FILE(tcp_wmem_max, sysctl_tcp_wmem[2]); ++ ++CREATE_IPV4_FILE(tcp_rmem_min, sysctl_tcp_rmem[0]); ++CREATE_IPV4_FILE(tcp_rmem_def, sysctl_tcp_rmem[1]); ++CREATE_IPV4_FILE(tcp_rmem_max, sysctl_tcp_rmem[2]); ++ ++static struct attribute *ipv4_attrs[] = { ++ &tcp_wmem_min_attr.attr, ++ &tcp_wmem_def_attr.attr, ++ &tcp_wmem_max_attr.attr, ++ &tcp_rmem_min_attr.attr, ++ &tcp_rmem_def_attr.attr, ++ &tcp_rmem_max_attr.attr, ++ NULL ++}; ++ ++static struct attribute_group ipv4_attr_group = { ++ .attrs = ipv4_attrs, ++}; ++ ++static __init int sysfs_ipv4_init(void) ++{ ++ struct kobject *ipv4_kobject; ++ int ret; ++ ++ ipv4_kobject = kobject_create_and_add("ipv4", kernel_kobj); ++ if (!ipv4_kobject) ++ return -ENOMEM; ++ ++ ret = sysfs_create_group(ipv4_kobject, &ipv4_attr_group); ++ if (ret) { ++ kobject_put(ipv4_kobject); ++ return ret; ++ } ++ ++ return 0; ++} ++ ++subsys_initcall(sysfs_ipv4_init); diff --git a/target/linux/goldfish/patches-2.6.30/0086-Input-Generic-GPIO-Input-device.patch b/target/linux/goldfish/patches-2.6.30/0086-Input-Generic-GPIO-Input-device.patch new file mode 100644 index 0000000000..1025633802 --- /dev/null +++ b/target/linux/goldfish/patches-2.6.30/0086-Input-Generic-GPIO-Input-device.patch @@ -0,0 +1,1460 @@ +From 6730377482c05a1742abb92f1463701f5d084a27 Mon Sep 17 00:00:00 2001 +From: =?utf-8?q?Arve=20Hj=C3=B8nnev=C3=A5g?= <arve@android.com> +Date: Wed, 15 Oct 2008 18:23:47 -0700 +Subject: [PATCH 086/134] Input: Generic GPIO Input device. +MIME-Version: 1.0 +Content-Type: text/plain; charset=utf-8 +Content-Transfer-Encoding: 8bit + +Supports keyboard matrixces, direct inputs, direct outputs and axes connected to gpios. + +Signed-off-by: Arve HjønnevÃ¥g <arve@android.com> +Signed-off-by: Nick Pelly <npelly@google.com> +--- + drivers/input/misc/Kconfig | 5 + + drivers/input/misc/Makefile | 1 + + drivers/input/misc/gpio_axis.c | 180 +++++++++++++++++ + drivers/input/misc/gpio_event.c | 224 +++++++++++++++++++++ + drivers/input/misc/gpio_input.c | 343 ++++++++++++++++++++++++++++++++ + drivers/input/misc/gpio_matrix.c | 406 ++++++++++++++++++++++++++++++++++++++ + drivers/input/misc/gpio_output.c | 84 ++++++++ + include/linux/gpio_event.h | 154 ++++++++++++++ + 8 files changed, 1397 insertions(+), 0 deletions(-) + create mode 100644 drivers/input/misc/gpio_axis.c + create mode 100644 drivers/input/misc/gpio_event.c + create mode 100644 drivers/input/misc/gpio_input.c + create mode 100644 drivers/input/misc/gpio_matrix.c + create mode 100644 drivers/input/misc/gpio_output.c + create mode 100644 include/linux/gpio_event.h + +--- a/drivers/input/misc/Kconfig ++++ b/drivers/input/misc/Kconfig +@@ -212,6 +212,11 @@ config INPUT_SGI_BTNS + To compile this driver as a module, choose M here: the + module will be called sgi_btns. + ++config INPUT_GPIO ++ tristate "GPIO driver support" ++ help ++ Say Y here if you want to support gpio based keys, wheels etc... ++ + config HP_SDC_RTC + tristate "HP SDC Real Time Clock" + depends on (GSC || HP300) && SERIO +--- a/drivers/input/misc/Makefile ++++ b/drivers/input/misc/Makefile +@@ -25,3 +25,5 @@ obj-$(CONFIG_INPUT_UINPUT) += uinput.o + obj-$(CONFIG_INPUT_WISTRON_BTNS) += wistron_btns.o + obj-$(CONFIG_INPUT_YEALINK) += yealink.o + obj-$(CONFIG_INPUT_GPIO_BUTTONS) += gpio_buttons.o ++obj-$(CONFIG_INPUT_GPIO) += gpio_event.o gpio_matrix.o gpio_input.o gpio_output.o gpio_axis.o ++ +--- /dev/null ++++ b/drivers/input/misc/gpio_axis.c +@@ -0,0 +1,180 @@ ++/* drivers/input/misc/gpio_axis.c ++ * ++ * Copyright (C) 2007 Google, Inc. ++ * ++ * This software is licensed under the terms of the GNU General Public ++ * License version 2, as published by the Free Software Foundation, and ++ * may be copied, distributed, and modified under those terms. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ * ++ */ ++ ++#include <linux/kernel.h> ++#include <linux/gpio.h> ++#include <linux/gpio_event.h> ++#include <linux/interrupt.h> ++ ++struct gpio_axis_state { ++ struct input_dev *input_dev; ++ struct gpio_event_axis_info *info; ++ uint32_t pos; ++}; ++ ++uint16_t gpio_axis_4bit_gray_map_table[] = { ++ [0x0] = 0x0, [0x1] = 0x1, /* 0000 0001 */ ++ [0x3] = 0x2, [0x2] = 0x3, /* 0011 0010 */ ++ [0x6] = 0x4, [0x7] = 0x5, /* 0110 0111 */ ++ [0x5] = 0x6, [0x4] = 0x7, /* 0101 0100 */ ++ [0xc] = 0x8, [0xd] = 0x9, /* 1100 1101 */ ++ [0xf] = 0xa, [0xe] = 0xb, /* 1111 1110 */ ++ [0xa] = 0xc, [0xb] = 0xd, /* 1010 1011 */ ++ [0x9] = 0xe, [0x8] = 0xf, /* 1001 1000 */ ++}; ++uint16_t gpio_axis_4bit_gray_map(struct gpio_event_axis_info *info, uint16_t in) ++{ ++ return gpio_axis_4bit_gray_map_table[in]; ++} ++ ++uint16_t gpio_axis_5bit_singletrack_map_table[] = { ++ [0x10] = 0x00, [0x14] = 0x01, [0x1c] = 0x02, /* 10000 10100 11100 */ ++ [0x1e] = 0x03, [0x1a] = 0x04, [0x18] = 0x05, /* 11110 11010 11000 */ ++ [0x08] = 0x06, [0x0a] = 0x07, [0x0e] = 0x08, /* 01000 01010 01110 */ ++ [0x0f] = 0x09, [0x0d] = 0x0a, [0x0c] = 0x0b, /* 01111 01101 01100 */ ++ [0x04] = 0x0c, [0x05] = 0x0d, [0x07] = 0x0e, /* 00100 00101 00111 */ ++ [0x17] = 0x0f, [0x16] = 0x10, [0x06] = 0x11, /* 10111 10110 00110 */ ++ [0x02] = 0x12, [0x12] = 0x13, [0x13] = 0x14, /* 00010 10010 10011 */ ++ [0x1b] = 0x15, [0x0b] = 0x16, [0x03] = 0x17, /* 11011 01011 00011 */ ++ [0x01] = 0x18, [0x09] = 0x19, [0x19] = 0x1a, /* 00001 01001 11001 */ ++ [0x1d] = 0x1b, [0x15] = 0x1c, [0x11] = 0x1d, /* 11101 10101 10001 */ ++}; ++uint16_t gpio_axis_5bit_singletrack_map( ++ struct gpio_event_axis_info *info, uint16_t in) ++{ ++ return gpio_axis_5bit_singletrack_map_table[in]; ++} ++ ++static void gpio_event_update_axis(struct gpio_axis_state *as, int report) ++{ ++ struct gpio_event_axis_info *ai = as->info; ++ int i; ++ int change; ++ uint16_t state = 0; ++ uint16_t pos; ++ uint16_t old_pos = as->pos; ++ for (i = ai->count - 1; i >= 0; i--) ++ state = (state << 1) | gpio_get_value(ai->gpio[i]); ++ pos = ai->map(ai, state); ++ if (ai->flags & GPIOEAF_PRINT_RAW) ++ pr_info("axis %d-%d raw %x, pos %d -> %d\n", ++ ai->type, ai->code, state, old_pos, pos); ++ if (report && pos != old_pos) { ++ if (ai->type == EV_REL) { ++ change = (ai->decoded_size + pos - old_pos) % ++ ai->decoded_size; ++ if (change > ai->decoded_size / 2) ++ change -= ai->decoded_size; ++ if (change == ai->decoded_size / 2) { ++ if (ai->flags & GPIOEAF_PRINT_EVENT) ++ pr_info("axis %d-%d unknown direction, " ++ "pos %d -> %d\n", ai->type, ++ ai->code, old_pos, pos); ++ change = 0; /* no closest direction */ ++ } ++ if (ai->flags & GPIOEAF_PRINT_EVENT) ++ pr_info("axis %d-%d change %d\n", ++ ai->type, ai->code, change); ++ input_report_rel(as->input_dev, ai->code, change); ++ } else { ++ if (ai->flags & GPIOEAF_PRINT_EVENT) ++ pr_info("axis %d-%d now %d\n", ++ ai->type, ai->code, pos); ++ input_event(as->input_dev, ai->type, ai->code, pos); ++ } ++ input_sync(as->input_dev); ++ } ++ as->pos = pos; ++} ++ ++static irqreturn_t gpio_axis_irq_handler(int irq, void *dev_id) ++{ ++ struct gpio_axis_state *as = dev_id; ++ gpio_event_update_axis(as, 1); ++ return IRQ_HANDLED; ++} ++ ++int gpio_event_axis_func(struct input_dev *input_dev, ++ struct gpio_event_info *info, void **data, int func) ++{ ++ int ret; ++ int i; ++ int irq; ++ struct gpio_event_axis_info *ai; ++ struct gpio_axis_state *as; ++ ++ ai = container_of(info, struct gpio_event_axis_info, info); ++ if (func == GPIO_EVENT_FUNC_SUSPEND) { ++ for (i = 0; i < ai->count; i++) ++ disable_irq(gpio_to_irq(ai->gpio[i])); ++ return 0; ++ } ++ if (func == GPIO_EVENT_FUNC_RESUME) { ++ for (i = 0; i < ai->count; i++) ++ enable_irq(gpio_to_irq(ai->gpio[i])); ++ return 0; ++ } ++ ++ if (func == GPIO_EVENT_FUNC_INIT) { ++ *data = as = kmalloc(sizeof(*as), GFP_KERNEL); ++ if (as == NULL) { ++ ret = -ENOMEM; ++ goto err_alloc_axis_state_failed; ++ } ++ as->input_dev = input_dev; ++ as->info = ai; ++ ++ input_set_capability(input_dev, ai->type, ai->code); ++ if (ai->type == EV_ABS) { ++ input_set_abs_params(input_dev, ai->code, 0, ++ ai->decoded_size - 1, 0, 0); ++ } ++ for (i = 0; i < ai->count; i++) { ++ ret = gpio_request(ai->gpio[i], "gpio_event_axis"); ++ if (ret < 0) ++ goto err_request_gpio_failed; ++ ret = gpio_direction_input(ai->gpio[i]); ++ if (ret < 0) ++ goto err_gpio_direction_input_failed; ++ ret = irq = gpio_to_irq(ai->gpio[i]); ++ if (ret < 0) ++ goto err_get_irq_num_failed; ++ ret = request_irq(irq, gpio_axis_irq_handler, ++ IRQF_TRIGGER_RISING | ++ IRQF_TRIGGER_FALLING, ++ "gpio_event_axis", as); ++ if (ret < 0) ++ goto err_request_irq_failed; ++ } ++ gpio_event_update_axis(as, 0); ++ return 0; ++ } ++ ++ ret = 0; ++ as = *data; ++ for (i = ai->count - 1; i >= 0; i--) { ++ free_irq(gpio_to_irq(ai->gpio[i]), as); ++err_request_irq_failed: ++err_get_irq_num_failed: ++err_gpio_direction_input_failed: ++ gpio_free(ai->gpio[i]); ++err_request_gpio_failed: ++ ; ++ } ++ kfree(as); ++ *data = NULL; ++err_alloc_axis_state_failed: ++ return ret; ++} +--- /dev/null ++++ b/drivers/input/misc/gpio_event.c +@@ -0,0 +1,224 @@ ++/* drivers/input/misc/gpio_event.c ++ * ++ * Copyright (C) 2007 Google, Inc. ++ * ++ * This software is licensed under the terms of the GNU General Public ++ * License version 2, as published by the Free Software Foundation, and ++ * may be copied, distributed, and modified under those terms. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ * ++ */ ++ ++#include <linux/earlysuspend.h> ++#include <linux/module.h> ++#include <linux/input.h> ++#include <linux/gpio_event.h> ++#include <linux/hrtimer.h> ++#include <linux/platform_device.h> ++ ++struct gpio_event { ++ struct input_dev *input_dev; ++ const struct gpio_event_platform_data *info; ++ struct early_suspend early_suspend; ++ void *state[0]; ++}; ++ ++static int gpio_input_event( ++ struct input_dev *dev, unsigned int type, unsigned int code, int value) ++{ ++ int i; ++ int ret = 0; ++ int tmp_ret; ++ struct gpio_event_info **ii; ++ struct gpio_event *ip = input_get_drvdata(dev); ++ ++ for (i = 0, ii = ip->info->info; i < ip->info->info_count; i++, ii++) { ++ if ((*ii)->event) { ++ tmp_ret = (*ii)->event(ip->input_dev, *ii, ++ &ip->state[i], type, code, value); ++ if (tmp_ret) ++ ret = tmp_ret; ++ } ++ } ++ return ret; ++} ++ ++static int gpio_event_call_all_func(struct gpio_event *ip, int func) ++{ ++ int i; ++ int ret; ++ struct gpio_event_info **ii; ++ ++ if (func == GPIO_EVENT_FUNC_INIT || func == GPIO_EVENT_FUNC_RESUME) { ++ ii = ip->info->info; ++ for (i = 0; i < ip->info->info_count; i++, ii++) { ++ if ((*ii)->func == NULL) { ++ ret = -ENODEV; ++ pr_err("gpio_event_probe: Incomplete pdata, " ++ "no function\n"); ++ goto err_no_func; ++ } ++ ret = (*ii)->func(ip->input_dev, *ii, &ip->state[i], ++ func); ++ if (ret) { ++ pr_err("gpio_event_probe: function failed\n"); ++ goto err_func_failed; ++ } ++ } ++ return 0; ++ } ++ ++ ret = 0; ++ i = ip->info->info_count; ++ ii = ip->info->info + i; ++ while (i > 0) { ++ i--; ++ ii--; ++ (*ii)->func(ip->input_dev, *ii, &ip->state[i], func & ~1); ++err_func_failed: ++err_no_func: ++ ; ++ } ++ return ret; ++} ++ ++#ifdef CONFIG_HAS_EARLYSUSPEND ++void gpio_event_suspend(struct early_suspend *h) ++{ ++ struct gpio_event *ip; ++ ip = container_of(h, struct gpio_event, early_suspend); ++ gpio_event_call_all_func(ip, GPIO_EVENT_FUNC_SUSPEND); ++ ip->info->power(ip->info, 0); ++} ++ ++void gpio_event_resume(struct early_suspend *h) ++{ ++ struct gpio_event *ip; ++ ip = container_of(h, struct gpio_event, early_suspend); ++ ip->info->power(ip->info, 1); ++ gpio_event_call_all_func(ip, GPIO_EVENT_FUNC_RESUME); ++} ++#endif ++ ++static int __init gpio_event_probe(struct platform_device *pdev) ++{ ++ int err; ++ struct gpio_event *ip; ++ struct input_dev *input_dev; ++ struct gpio_event_platform_data *event_info; ++ ++ event_info = pdev->dev.platform_data; ++ if (event_info == NULL) { ++ pr_err("gpio_event_probe: No pdata\n"); ++ return -ENODEV; ++ } ++ if (event_info->name == NULL || ++ event_info->info == NULL || ++ event_info->info_count == 0) { ++ pr_err("gpio_event_probe: Incomplete pdata\n"); ++ return -ENODEV; ++ } ++ ip = kzalloc(sizeof(*ip) + ++ sizeof(ip->state[0]) * event_info->info_count, GFP_KERNEL); ++ if (ip == NULL) { ++ err = -ENOMEM; ++ pr_err("gpio_event_probe: Failed to allocate private data\n"); ++ goto err_kp_alloc_failed; ++ } ++ platform_set_drvdata(pdev, ip); ++ ++ input_dev = input_allocate_device(); ++ if (input_dev == NULL) { ++ err = -ENOMEM; ++ pr_err("gpio_event_probe: Failed to allocate input device\n"); ++ goto err_input_dev_alloc_failed; ++ } ++ input_set_drvdata(input_dev, ip); ++ ip->input_dev = input_dev; ++ ip->info = event_info; ++ if (event_info->power) { ++#ifdef CONFIG_HAS_EARLYSUSPEND ++ ip->early_suspend.level = EARLY_SUSPEND_LEVEL_BLANK_SCREEN + 1; ++ ip->early_suspend.suspend = gpio_event_suspend; ++ ip->early_suspend.resume = gpio_event_resume; ++ register_early_suspend(&ip->early_suspend); ++#endif ++ ip->info->power(ip->info, 1); ++ } ++ ++ input_dev->name = ip->info->name; ++ input_dev->event = gpio_input_event; ++ ++ err = gpio_event_call_all_func(ip, GPIO_EVENT_FUNC_INIT); ++ if (err) ++ goto err_call_all_func_failed; ++ ++ err = input_register_device(input_dev); ++ if (err) { ++ pr_err("gpio_event_probe: Unable to register %s input device\n", ++ input_dev->name); ++ goto err_input_register_device_failed; ++ } ++ ++ return 0; ++ ++err_input_register_device_failed: ++ gpio_event_call_all_func(ip, GPIO_EVENT_FUNC_UNINIT); ++err_call_all_func_failed: ++ if (event_info->power) { ++#ifdef CONFIG_HAS_EARLYSUSPEND ++ unregister_early_suspend(&ip->early_suspend); ++#endif ++ ip->info->power(ip->info, 0); ++ } ++ input_free_device(input_dev); ++err_input_dev_alloc_failed: ++ kfree(ip); ++err_kp_alloc_failed: ++ return err; ++} ++ ++static int gpio_event_remove(struct platform_device *pdev) ++{ ++ struct gpio_event *ip = platform_get_drvdata(pdev); ++ ++ gpio_event_call_all_func(ip, GPIO_EVENT_FUNC_UNINIT); ++ if (ip->info->power) { ++#ifdef CONFIG_HAS_EARLYSUSPEND ++ unregister_early_suspend(&ip->early_suspend); ++#endif ++ ip->info->power(ip->info, 0); ++ } ++ input_unregister_device(ip->input_dev); ++ kfree(ip); ++ return 0; ++} ++ ++static struct platform_driver gpio_event_driver = { ++ .probe = gpio_event_probe, ++ .remove = gpio_event_remove, ++ .driver = { ++ .name = GPIO_EVENT_DEV_NAME, ++ }, ++}; ++ ++static int __devinit gpio_event_init(void) ++{ ++ return platform_driver_register(&gpio_event_driver); ++} ++ ++static void __exit gpio_event_exit(void) ++{ ++ platform_driver_unregister(&gpio_event_driver); ++} ++ ++module_init(gpio_event_init); ++module_exit(gpio_event_exit); ++ ++MODULE_DESCRIPTION("GPIO Event Driver"); ++MODULE_LICENSE("GPL"); ++ +--- /dev/null ++++ b/drivers/input/misc/gpio_input.c +@@ -0,0 +1,343 @@ ++/* drivers/input/misc/gpio_input.c ++ * ++ * Copyright (C) 2007 Google, Inc. ++ * ++ * This software is licensed under the terms of the GNU General Public ++ * License version 2, as published by the Free Software Foundation, and ++ * may be copied, distributed, and modified under those terms. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ * ++ */ ++ ++#include <linux/kernel.h> ++#include <linux/gpio.h> ++#include <linux/gpio_event.h> ++#include <linux/hrtimer.h> ++#include <linux/input.h> ++#include <linux/interrupt.h> ++#include <linux/wakelock.h> ++ ++enum { ++ DEBOUNCE_UNSTABLE = BIT(0), /* Got irq, while debouncing */ ++ DEBOUNCE_PRESSED = BIT(1), ++ DEBOUNCE_NOTPRESSED = BIT(2), ++ DEBOUNCE_WAIT_IRQ = BIT(3), /* Stable irq state */ ++ DEBOUNCE_POLL = BIT(4), /* Stable polling state */ ++ ++ DEBOUNCE_UNKNOWN = ++ DEBOUNCE_PRESSED | DEBOUNCE_NOTPRESSED, ++}; ++ ++struct gpio_key_state { ++ struct gpio_input_state *ds; ++ uint8_t debounce; ++}; ++ ++struct gpio_input_state { ++ struct input_dev *input_dev; ++ const struct gpio_event_input_info *info; ++ struct hrtimer timer; ++ int use_irq; ++ int debounce_count; ++ spinlock_t irq_lock; ++ struct wake_lock wake_lock; ++ struct gpio_key_state key_state[0]; ++}; ++ ++static enum hrtimer_restart gpio_event_input_timer_func(struct hrtimer *timer) ++{ ++ int i; ++ int pressed; ++ struct gpio_input_state *ds = ++ container_of(timer, struct gpio_input_state, timer); ++ unsigned gpio_flags = ds->info->flags; ++ unsigned npolarity; ++ int nkeys = ds->info->keymap_size; ++ const struct gpio_event_direct_entry *key_entry; ++ struct gpio_key_state *key_state; ++ unsigned long irqflags; ++ uint8_t debounce; ++ ++#if 0 ++ key_entry = kp->keys_info->keymap; ++ key_state = kp->key_state; ++ for (i = 0; i < nkeys; i++, key_entry++, key_state++) ++ pr_info("gpio_read_detect_status %d %d\n", key_entry->gpio, ++ gpio_read_detect_status(key_entry->gpio)); ++#endif ++ key_entry = ds->info->keymap; ++ key_state = ds->key_state; ++ spin_lock_irqsave(&ds->irq_lock, irqflags); ++ for (i = 0; i < nkeys; i++, key_entry++, key_state++) { ++ debounce = key_state->debounce; ++ if (debounce & DEBOUNCE_WAIT_IRQ) ++ continue; ++ if (key_state->debounce & DEBOUNCE_UNSTABLE) { ++ debounce = key_state->debounce = DEBOUNCE_UNKNOWN; ++ enable_irq(gpio_to_irq(key_entry->gpio)); ++ pr_info("gpio_keys_scan_keys: key %x-%x, %d " ++ "(%d) continue debounce\n", ++ ds->info->type, key_entry->code, ++ i, key_entry->gpio); ++ } ++ npolarity = !(gpio_flags & GPIOEDF_ACTIVE_HIGH); ++ pressed = gpio_get_value(key_entry->gpio) ^ npolarity; ++ if (debounce & DEBOUNCE_POLL) { ++ if (pressed == !(debounce & DEBOUNCE_PRESSED)) { ++ ds->debounce_count++; ++ key_state->debounce = DEBOUNCE_UNKNOWN; ++ if (gpio_flags & GPIOEDF_PRINT_KEY_DEBOUNCE) ++ pr_info("gpio_keys_scan_keys: key %x-" ++ "%x, %d (%d) start debounce\n", ++ ds->info->type, key_entry->code, ++ i, key_entry->gpio); ++ } ++ continue; ++ } ++ if (pressed && (debounce & DEBOUNCE_NOTPRESSED)) { ++ if (gpio_flags & GPIOEDF_PRINT_KEY_DEBOUNCE) ++ pr_info("gpio_keys_scan_keys: key %x-%x, %d " ++ "(%d) debounce pressed 1\n", ++ ds->info->type, key_entry->code, ++ i, key_entry->gpio); ++ key_state->debounce = DEBOUNCE_PRESSED; ++ continue; ++ } ++ if (!pressed && (debounce & DEBOUNCE_PRESSED)) { ++ if (gpio_flags & GPIOEDF_PRINT_KEY_DEBOUNCE) ++ pr_info("gpio_keys_scan_keys: key %x-%x, %d " ++ "(%d) debounce pressed 0\n", ++ ds->info->type, key_entry->code, ++ i, key_entry->gpio); ++ key_state->debounce = DEBOUNCE_NOTPRESSED; ++ continue; ++ } ++ /* key is stable */ ++ ds->debounce_count--; ++ if (ds->use_irq) ++ key_state->debounce |= DEBOUNCE_WAIT_IRQ; ++ else ++ key_state->debounce |= DEBOUNCE_POLL; ++ if (gpio_flags & GPIOEDF_PRINT_KEYS) ++ pr_info("gpio_keys_scan_keys: key %x-%x, %d (%d) " ++ "changed to %d\n", ds->info->type, ++ key_entry->code, i, key_entry->gpio, pressed); ++ input_event(ds->input_dev, ds->info->type, ++ key_entry->code, pressed); ++ } ++ ++#if 0 ++ key_entry = kp->keys_info->keymap; ++ key_state = kp->key_state; ++ for (i = 0; i < nkeys; i++, key_entry++, key_state++) { ++ pr_info("gpio_read_detect_status %d %d\n", key_entry->gpio, ++ gpio_read_detect_status(key_entry->gpio)); ++ } ++#endif ++ ++ if (ds->debounce_count) ++ hrtimer_start(timer, ds->info->debounce_time, HRTIMER_MODE_REL); ++ else if (!ds->use_irq) ++ hrtimer_start(timer, ds->info->poll_time, HRTIMER_MODE_REL); ++ else ++ wake_unlock(&ds->wake_lock); ++ ++ spin_unlock_irqrestore(&ds->irq_lock, irqflags); ++ ++ return HRTIMER_NORESTART; ++} ++ ++static irqreturn_t gpio_event_input_irq_handler(int irq, void *dev_id) ++{ ++ struct gpio_key_state *ks = dev_id; ++ struct gpio_input_state *ds = ks->ds; ++ int keymap_index = ks - ds->key_state; ++ const struct gpio_event_direct_entry *key_entry; ++ unsigned long irqflags; ++ int pressed; ++ ++ if (!ds->use_irq) ++ return IRQ_HANDLED; ++ ++ key_entry = &ds->info->keymap[keymap_index]; ++ ++ if (ds->info->debounce_time.tv64) { ++ spin_lock_irqsave(&ds->irq_lock, irqflags); ++ if (ks->debounce & DEBOUNCE_WAIT_IRQ) { ++ ks->debounce = DEBOUNCE_UNKNOWN; ++ if (ds->debounce_count++ == 0) { ++ wake_lock(&ds->wake_lock); ++ hrtimer_start( ++ &ds->timer, ds->info->debounce_time, ++ HRTIMER_MODE_REL); ++ } ++ if (ds->info->flags & GPIOEDF_PRINT_KEY_DEBOUNCE) ++ pr_info("gpio_event_input_irq_handler: " ++ "key %x-%x, %d (%d) start debounce\n", ++ ds->info->type, key_entry->code, ++ keymap_index, key_entry->gpio); ++ } else { ++ disable_irq(irq); ++ ks->debounce = DEBOUNCE_UNSTABLE; ++ } ++ spin_unlock_irqrestore(&ds->irq_lock, irqflags); ++ } else { ++ pressed = gpio_get_value(key_entry->gpio) ^ ++ !(ds->info->flags & GPIOEDF_ACTIVE_HIGH); ++ if (ds->info->flags & GPIOEDF_PRINT_KEYS) ++ pr_info("gpio_event_input_irq_handler: key %x-%x, %d " ++ "(%d) changed to %d\n", ++ ds->info->type, key_entry->code, keymap_index, ++ key_entry->gpio, pressed); ++ input_event(ds->input_dev, ds->info->type, ++ key_entry->code, pressed); ++ } ++ return IRQ_HANDLED; ++} ++ ++static int gpio_event_input_request_irqs(struct gpio_input_state *ds) ++{ ++ int i; ++ int err; ++ unsigned int irq; ++ unsigned long req_flags = IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING; ++ ++ for (i = 0; i < ds->info->keymap_size; i++) { ++ err = irq = gpio_to_irq(ds->info->keymap[i].gpio); ++ if (err < 0) ++ goto err_gpio_get_irq_num_failed; ++ err = request_irq(irq, gpio_event_input_irq_handler, ++ req_flags, "gpio_keys", &ds->key_state[i]); ++ if (err) { ++ pr_err("gpio_event_input_request_irqs: request_irq " ++ "failed for input %d, irq %d\n", ++ ds->info->keymap[i].gpio, irq); ++ goto err_request_irq_failed; ++ } ++ enable_irq_wake(irq); ++ } ++ return 0; ++ ++ for (i = ds->info->keymap_size - 1; i >= 0; i--) { ++ free_irq(gpio_to_irq(ds->info->keymap[i].gpio), ++ &ds->key_state[i]); ++err_request_irq_failed: ++err_gpio_get_irq_num_failed: ++ ; ++ } ++ return err; ++} ++ ++int gpio_event_input_func(struct input_dev *input_dev, ++ struct gpio_event_info *info, void **data, int func) ++{ ++ int ret; ++ int i; ++ unsigned long irqflags; ++ struct gpio_event_input_info *di; ++ struct gpio_input_state *ds = *data; ++ ++ di = container_of(info, struct gpio_event_input_info, info); ++ ++ if (func == GPIO_EVENT_FUNC_SUSPEND) { ++ spin_lock_irqsave(&ds->irq_lock, irqflags); ++ if (ds->use_irq) ++ for (i = 0; i < di->keymap_size; i++) ++ disable_irq(gpio_to_irq(di->keymap[i].gpio)); ++ spin_unlock_irqrestore(&ds->irq_lock, irqflags); ++ hrtimer_cancel(&ds->timer); ++ return 0; ++ } ++ if (func == GPIO_EVENT_FUNC_RESUME) { ++ spin_lock_irqsave(&ds->irq_lock, irqflags); ++ if (ds->use_irq) ++ for (i = 0; i < di->keymap_size; i++) ++ enable_irq(gpio_to_irq(di->keymap[i].gpio)); ++ hrtimer_start(&ds->timer, ktime_set(0, 0), HRTIMER_MODE_REL); ++ spin_unlock_irqrestore(&ds->irq_lock, irqflags); ++ return 0; ++ } ++ ++ if (func == GPIO_EVENT_FUNC_INIT) { ++ if (ktime_to_ns(di->poll_time) <= 0) ++ di->poll_time = ktime_set(0, 20 * NSEC_PER_MSEC); ++ ++ *data = ds = kzalloc(sizeof(*ds) + sizeof(ds->key_state[0]) * ++ di->keymap_size, GFP_KERNEL); ++ if (ds == NULL) { ++ ret = -ENOMEM; ++ pr_err("gpio_event_input_func: " ++ "Failed to allocate private data\n"); ++ goto err_ds_alloc_failed; ++ } ++ ds->debounce_count = di->keymap_size; ++ ds->input_dev = input_dev; ++ ds->info = di; ++ wake_lock_init(&ds->wake_lock, WAKE_LOCK_SUSPEND, "gpio_input"); ++ spin_lock_init(&ds->irq_lock); ++ ++ for (i = 0; i < di->keymap_size; i++) { ++ input_set_capability(input_dev, di->type, ++ di->keymap[i].code); ++ ds->key_state[i].ds = ds; ++ ds->key_state[i].debounce = DEBOUNCE_UNKNOWN; ++ } ++ ++ for (i = 0; i < di->keymap_size; i++) { ++ ret = gpio_request(di->keymap[i].gpio, "gpio_kp_in"); ++ if (ret) { ++ pr_err("gpio_event_input_func: gpio_request " ++ "failed for %d\n", di->keymap[i].gpio); ++ goto err_gpio_request_failed; ++ } ++ ret = gpio_direction_input(di->keymap[i].gpio); ++ if (ret) { ++ pr_err("gpio_event_input_func: " ++ "gpio_direction_input failed for %d\n", ++ di->keymap[i].gpio); ++ goto err_gpio_configure_failed; ++ } ++ } ++ ++ ret = gpio_event_input_request_irqs(ds); ++ ++ spin_lock_irqsave(&ds->irq_lock, irqflags); ++ ds->use_irq = ret == 0; ++ ++ pr_info("GPIO Input Driver: Start gpio inputs for %s in %s " ++ "mode\n", ++ input_dev->name, ret == 0 ? "interrupt" : "polling"); ++ ++ hrtimer_init(&ds->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL); ++ ds->timer.function = gpio_event_input_timer_func; ++ hrtimer_start(&ds->timer, ktime_set(0, 0), HRTIMER_MODE_REL); ++ spin_unlock_irqrestore(&ds->irq_lock, irqflags); ++ return 0; ++ } ++ ++ ret = 0; ++ spin_lock_irqsave(&ds->irq_lock, irqflags); ++ hrtimer_cancel(&ds->timer); ++ if (ds->use_irq) { ++ for (i = di->keymap_size - 1; i >= 0; i--) { ++ free_irq(gpio_to_irq(di->keymap[i].gpio), ++ &ds->key_state[i]); ++ } ++ } ++ spin_unlock_irqrestore(&ds->irq_lock, irqflags); ++ ++ for (i = di->keymap_size - 1; i >= 0; i--) { ++err_gpio_configure_failed: ++ gpio_free(di->keymap[i].gpio); ++err_gpio_request_failed: ++ ; ++ } ++ wake_lock_destroy(&ds->wake_lock); ++ kfree(ds); ++err_ds_alloc_failed: ++ return ret; ++} +--- /dev/null ++++ b/drivers/input/misc/gpio_matrix.c +@@ -0,0 +1,406 @@ ++/* drivers/input/misc/gpio_matrix.c ++ * ++ * Copyright (C) 2007 Google, Inc. ++ * ++ * This software is licensed under the terms of the GNU General Public ++ * License version 2, as published by the Free Software Foundation, and ++ * may be copied, distributed, and modified under those terms. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ * ++ */ ++ ++#include <linux/kernel.h> ++#include <linux/gpio.h> ++#include <linux/gpio_event.h> ++#include <linux/hrtimer.h> ++#include <linux/interrupt.h> ++#include <linux/wakelock.h> ++ ++struct gpio_kp { ++ struct input_dev *input_dev; ++ struct gpio_event_matrix_info *keypad_info; ++ struct hrtimer timer; ++ struct wake_lock wake_lock; ++ int current_output; ++ unsigned int use_irq:1; ++ unsigned int key_state_changed:1; ++ unsigned int last_key_state_changed:1; ++ unsigned int some_keys_pressed:2; ++ unsigned long keys_pressed[0]; ++}; ++ ++static void clear_phantom_key(struct gpio_kp *kp, int out, int in) ++{ ++ struct gpio_event_matrix_info *mi = kp->keypad_info; ++ int key_index = out * mi->ninputs + in; ++ unsigned short keycode = mi->keymap[key_index];; ++ ++ if (!test_bit(keycode, kp->input_dev->key)) { ++ if (mi->flags & GPIOKPF_PRINT_PHANTOM_KEYS) ++ pr_info("gpiomatrix: phantom key %x, %d-%d (%d-%d) " ++ "cleared\n", keycode, out, in, ++ mi->output_gpios[out], mi->input_gpios[in]); ++ __clear_bit(key_index, kp->keys_pressed); ++ } else { ++ if (mi->flags & GPIOKPF_PRINT_PHANTOM_KEYS) ++ pr_info("gpiomatrix: phantom key %x, %d-%d (%d-%d) " ++ "not cleared\n", keycode, out, in, ++ mi->output_gpios[out], mi->input_gpios[in]); ++ } ++} ++ ++static int restore_keys_for_input(struct gpio_kp *kp, int out, int in) ++{ ++ int rv = 0; ++ int key_index; ++ ++ key_index = out * kp->keypad_info->ninputs + in; ++ while (out < kp->keypad_info->noutputs) { ++ if (test_bit(key_index, kp->keys_pressed)) { ++ rv = 1; ++ clear_phantom_key(kp, out, in); ++ } ++ key_index += kp->keypad_info->ninputs; ++ out++; ++ } ++ return rv; ++} ++ ++static void remove_phantom_keys(struct gpio_kp *kp) ++{ ++ int out, in, inp; ++ int key_index; ++ ++ if (kp->some_keys_pressed < 3) ++ return; ++ ++ for (out = 0; out < kp->keypad_info->noutputs; out++) { ++ inp = -1; ++ key_index = out * kp->keypad_info->ninputs; ++ for (in = 0; in < kp->keypad_info->ninputs; in++, key_index++) { ++ if (test_bit(key_index, kp->keys_pressed)) { ++ if (inp == -1) { ++ inp = in; ++ continue; ++ } ++ if (inp >= 0) { ++ if (!restore_keys_for_input(kp, out + 1, ++ inp)) ++ break; ++ clear_phantom_key(kp, out, inp); ++ inp = -2; ++ } ++ restore_keys_for_input(kp, out, in); ++ } ++ } ++ } ++} ++ ++static void report_key(struct gpio_kp *kp, int key_index, int out, int in) ++{ ++ struct gpio_event_matrix_info *mi = kp->keypad_info; ++ int pressed = test_bit(key_index, kp->keys_pressed); ++ unsigned short keycode = mi->keymap[key_index]; ++ if (pressed != test_bit(keycode, kp->input_dev->key)) { ++ if (keycode == KEY_RESERVED) { ++ if (mi->flags & GPIOKPF_PRINT_UNMAPPED_KEYS) ++ pr_info("gpiomatrix: unmapped key, %d-%d " ++ "(%d-%d) changed to %d\n", ++ out, in, mi->output_gpios[out], ++ mi->input_gpios[in], pressed); ++ } else { ++ if (mi->flags & GPIOKPF_PRINT_MAPPED_KEYS) ++ pr_info("gpiomatrix: key %x, %d-%d (%d-%d) " ++ "changed to %d\n", keycode, ++ out, in, mi->output_gpios[out], ++ mi->input_gpios[in], pressed); ++ input_report_key(kp->input_dev, keycode, pressed); ++ } ++ } ++} ++ ++static enum hrtimer_restart gpio_keypad_timer_func(struct hrtimer *timer) ++{ ++ int out, in; ++ int key_index; ++ int gpio; ++ struct gpio_kp *kp = container_of(timer, struct gpio_kp, timer); ++ struct gpio_event_matrix_info *mi = kp->keypad_info; ++ unsigned gpio_keypad_flags = mi->flags; ++ unsigned polarity = !!(gpio_keypad_flags & GPIOKPF_ACTIVE_HIGH); ++ ++ out = kp->current_output; ++ if (out == mi->noutputs) { ++ out = 0; ++ kp->last_key_state_changed = kp->key_state_changed; ++ kp->key_state_changed = 0; ++ kp->some_keys_pressed = 0; ++ } else { ++ key_index = out * mi->ninputs; ++ for (in = 0; in < mi->ninputs; in++, key_index++) { ++ gpio = mi->input_gpios[in]; ++ if (gpio_get_value(gpio) ^ !polarity) { ++ if (kp->some_keys_pressed < 3) ++ kp->some_keys_pressed++; ++ kp->key_state_changed |= !__test_and_set_bit( ++ key_index, kp->keys_pressed); ++ } else ++ kp->key_state_changed |= __test_and_clear_bit( ++ key_index, kp->keys_pressed); ++ } ++ gpio = mi->output_gpios[out]; ++ if (gpio_keypad_flags & GPIOKPF_DRIVE_INACTIVE) ++ gpio_set_value(gpio, !polarity); ++ else ++ gpio_direction_input(gpio); ++ out++; ++ } ++ kp->current_output = out; ++ if (out < mi->noutputs) { ++ gpio = mi->output_gpios[out]; ++ if (gpio_keypad_flags & GPIOKPF_DRIVE_INACTIVE) ++ gpio_set_value(gpio, polarity); ++ else ++ gpio_direction_output(gpio, polarity); ++ hrtimer_start(timer, mi->settle_time, HRTIMER_MODE_REL); ++ return HRTIMER_NORESTART; ++ } ++ if (gpio_keypad_flags & GPIOKPF_DEBOUNCE) { ++ if (kp->key_state_changed) { ++ hrtimer_start(&kp->timer, mi->debounce_delay, ++ HRTIMER_MODE_REL); ++ return HRTIMER_NORESTART; ++ } ++ kp->key_state_changed = kp->last_key_state_changed; ++ } ++ if (kp->key_state_changed) { ++ if (gpio_keypad_flags & GPIOKPF_REMOVE_SOME_PHANTOM_KEYS) ++ remove_phantom_keys(kp); ++ key_index = 0; ++ for (out = 0; out < mi->noutputs; out++) ++ for (in = 0; in < mi->ninputs; in++, key_index++) ++ report_key(kp, key_index, out, in); ++ } ++ if (!kp->use_irq || kp->some_keys_pressed) { ++ hrtimer_start(timer, mi->poll_time, HRTIMER_MODE_REL); ++ return HRTIMER_NORESTART; ++ } ++ ++ /* No keys are pressed, reenable interrupt */ ++ for (out = 0; out < mi->noutputs; out++) { ++ if (gpio_keypad_flags & GPIOKPF_DRIVE_INACTIVE) ++ gpio_set_value(mi->output_gpios[out], polarity); ++ else ++ gpio_direction_output(mi->output_gpios[out], polarity); ++ } ++ for (in = 0; in < mi->ninputs; in++) ++ enable_irq(gpio_to_irq(mi->input_gpios[in])); ++ wake_unlock(&kp->wake_lock); ++ return HRTIMER_NORESTART; ++} ++ ++static irqreturn_t gpio_keypad_irq_handler(int irq_in, void *dev_id) ++{ ++ int i; ++ struct gpio_kp *kp = dev_id; ++ struct gpio_event_matrix_info *mi = kp->keypad_info; ++ unsigned gpio_keypad_flags = mi->flags; ++ ++ if (!kp->use_irq) /* ignore interrupt while registering the handler */ ++ return IRQ_HANDLED; ++ ++ for (i = 0; i < mi->ninputs; i++) ++ disable_irq(gpio_to_irq(mi->input_gpios[i])); ++ for (i = 0; i < mi->noutputs; i++) { ++ if (gpio_keypad_flags & GPIOKPF_DRIVE_INACTIVE) ++ gpio_set_value(mi->output_gpios[i], ++ !(gpio_keypad_flags & GPIOKPF_ACTIVE_HIGH)); ++ else ++ gpio_direction_input(mi->output_gpios[i]); ++ } ++ wake_lock(&kp->wake_lock); ++ hrtimer_start(&kp->timer, ktime_set(0, 0), HRTIMER_MODE_REL); ++ return IRQ_HANDLED; ++} ++ ++static int gpio_keypad_request_irqs(struct gpio_kp *kp) ++{ ++ int i; ++ int err; ++ unsigned int irq; ++ unsigned long request_flags; ++ struct gpio_event_matrix_info *mi = kp->keypad_info; ++ ++ switch (mi->flags & (GPIOKPF_ACTIVE_HIGH|GPIOKPF_LEVEL_TRIGGERED_IRQ)) { ++ default: ++ request_flags = IRQF_TRIGGER_FALLING; ++ break; ++ case GPIOKPF_ACTIVE_HIGH: ++ request_flags = IRQF_TRIGGER_RISING; ++ break; ++ case GPIOKPF_LEVEL_TRIGGERED_IRQ: ++ request_flags = IRQF_TRIGGER_LOW; ++ break; ++ case GPIOKPF_LEVEL_TRIGGERED_IRQ | GPIOKPF_ACTIVE_HIGH: ++ request_flags = IRQF_TRIGGER_HIGH; ++ break; ++ } ++ ++ for (i = 0; i < mi->ninputs; i++) { ++ err = irq = gpio_to_irq(mi->input_gpios[i]); ++ if (err < 0) ++ goto err_gpio_get_irq_num_failed; ++ err = request_irq(irq, gpio_keypad_irq_handler, request_flags, ++ "gpio_kp", kp); ++ if (err) { ++ pr_err("gpiomatrix: request_irq failed for input %d, " ++ "irq %d\n", mi->input_gpios[i], irq); ++ goto err_request_irq_failed; ++ } ++ err = set_irq_wake(irq, 1); ++ if (err) { ++ pr_err("gpiomatrix: set_irq_wake failed for input %d, " ++ "irq %d\n", mi->input_gpios[i], irq); ++ } ++ disable_irq(irq); ++ } ++ return 0; ++ ++ for (i = mi->noutputs - 1; i >= 0; i--) { ++ free_irq(gpio_to_irq(mi->input_gpios[i]), kp); ++err_request_irq_failed: ++err_gpio_get_irq_num_failed: ++ ; ++ } ++ return err; ++} ++ ++int gpio_event_matrix_func(struct input_dev *input_dev, ++ struct gpio_event_info *info, void **data, int func) ++{ ++ int i; ++ int err; ++ int key_count; ++ struct gpio_kp *kp; ++ struct gpio_event_matrix_info *mi; ++ ++ mi = container_of(info, struct gpio_event_matrix_info, info); ++ if (func == GPIO_EVENT_FUNC_SUSPEND || func == GPIO_EVENT_FUNC_RESUME) { ++ /* TODO: disable scanning */ ++ return 0; ++ } ++ ++ if (func == GPIO_EVENT_FUNC_INIT) { ++ if (mi->keymap == NULL || ++ mi->input_gpios == NULL || ++ mi->output_gpios == NULL) { ++ err = -ENODEV; ++ pr_err("gpiomatrix: Incomplete pdata\n"); ++ goto err_invalid_platform_data; ++ } ++ key_count = mi->ninputs * mi->noutputs; ++ ++ *data = kp = kzalloc(sizeof(*kp) + sizeof(kp->keys_pressed[0]) * ++ BITS_TO_LONGS(key_count), GFP_KERNEL); ++ if (kp == NULL) { ++ err = -ENOMEM; ++ pr_err("gpiomatrix: Failed to allocate private data\n"); ++ goto err_kp_alloc_failed; ++ } ++ kp->input_dev = input_dev; ++ kp->keypad_info = mi; ++ set_bit(EV_KEY, input_dev->evbit); ++ for (i = 0; i < key_count; i++) { ++ if (mi->keymap[i]) ++ set_bit(mi->keymap[i] & KEY_MAX, ++ input_dev->keybit); ++ } ++ ++ for (i = 0; i < mi->noutputs; i++) { ++ if (gpio_cansleep(mi->output_gpios[i])) { ++ pr_err("gpiomatrix: unsupported output gpio %d," ++ " can sleep\n", mi->output_gpios[i]); ++ err = -EINVAL; ++ goto err_request_output_gpio_failed; ++ } ++ err = gpio_request(mi->output_gpios[i], "gpio_kp_out"); ++ if (err) { ++ pr_err("gpiomatrix: gpio_request failed for " ++ "output %d\n", mi->output_gpios[i]); ++ goto err_request_output_gpio_failed; ++ } ++ if (mi->flags & GPIOKPF_DRIVE_INACTIVE) ++ err = gpio_direction_output(mi->output_gpios[i], ++ !(mi->flags & GPIOKPF_ACTIVE_HIGH)); ++ else ++ err = gpio_direction_input(mi->output_gpios[i]); ++ if (err) { ++ pr_err("gpiomatrix: gpio_configure failed for " ++ "output %d\n", mi->output_gpios[i]); ++ goto err_output_gpio_configure_failed; ++ } ++ } ++ for (i = 0; i < mi->ninputs; i++) { ++ err = gpio_request(mi->input_gpios[i], "gpio_kp_in"); ++ if (err) { ++ pr_err("gpiomatrix: gpio_request failed for " ++ "input %d\n", mi->input_gpios[i]); ++ goto err_request_input_gpio_failed; ++ } ++ err = gpio_direction_input(mi->input_gpios[i]); ++ if (err) { ++ pr_err("gpiomatrix: gpio_direction_input failed" ++ " for input %d\n", mi->input_gpios[i]); ++ goto err_gpio_direction_input_failed; ++ } ++ } ++ kp->current_output = mi->noutputs; ++ kp->key_state_changed = 1; ++ ++ hrtimer_init(&kp->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL); ++ kp->timer.function = gpio_keypad_timer_func; ++ wake_lock_init(&kp->wake_lock, WAKE_LOCK_SUSPEND, "gpio_kp"); ++ err = gpio_keypad_request_irqs(kp); ++ kp->use_irq = err == 0; ++ ++ pr_info("GPIO Matrix Keypad Driver: Start keypad matrix for %s " ++ "in %s mode\n", input_dev->name, ++ kp->use_irq ? "interrupt" : "polling"); ++ ++ if (kp->use_irq) ++ wake_lock(&kp->wake_lock); ++ hrtimer_start(&kp->timer, ktime_set(0, 0), HRTIMER_MODE_REL); ++ ++ return 0; ++ } ++ ++ err = 0; ++ kp = *data; ++ ++ if (kp->use_irq) ++ for (i = mi->noutputs - 1; i >= 0; i--) ++ free_irq(gpio_to_irq(mi->input_gpios[i]), kp); ++ ++ hrtimer_cancel(&kp->timer); ++ wake_lock_destroy(&kp->wake_lock); ++ for (i = mi->noutputs - 1; i >= 0; i--) { ++err_gpio_direction_input_failed: ++ gpio_free(mi->input_gpios[i]); ++err_request_input_gpio_failed: ++ ; ++ } ++ for (i = mi->noutputs - 1; i >= 0; i--) { ++err_output_gpio_configure_failed: ++ gpio_free(mi->output_gpios[i]); ++err_request_output_gpio_failed: ++ ; ++ } ++ kfree(kp); ++err_kp_alloc_failed: ++err_invalid_platform_data: ++ return err; ++} +--- /dev/null ++++ b/drivers/input/misc/gpio_output.c +@@ -0,0 +1,84 @@ ++/* drivers/input/misc/gpio_output.c ++ * ++ * Copyright (C) 2007 Google, Inc. ++ * ++ * This software is licensed under the terms of the GNU General Public ++ * License version 2, as published by the Free Software Foundation, and ++ * may be copied, distributed, and modified under those terms. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ * ++ */ ++ ++#include <linux/kernel.h> ++#include <linux/gpio.h> ++#include <linux/gpio_event.h> ++ ++int gpio_event_output_event( ++ struct input_dev *input_dev, struct gpio_event_info *info, void **data, ++ unsigned int type, unsigned int code, int value) ++{ ++ int i; ++ struct gpio_event_output_info *oi; ++ oi = container_of(info, struct gpio_event_output_info, info); ++ if (type != oi->type) ++ return 0; ++ if (!(oi->flags & GPIOEDF_ACTIVE_HIGH)) ++ value = !value; ++ for (i = 0; i < oi->keymap_size; i++) ++ if (code == oi->keymap[i].code) ++ gpio_set_value(oi->keymap[i].gpio, value); ++ return 0; ++} ++ ++int gpio_event_output_func( ++ struct input_dev *input_dev, struct gpio_event_info *info, void **data, ++ int func) ++{ ++ int ret; ++ int i; ++ struct gpio_event_output_info *oi; ++ oi = container_of(info, struct gpio_event_output_info, info); ++ ++ if (func == GPIO_EVENT_FUNC_SUSPEND || func == GPIO_EVENT_FUNC_RESUME) ++ return 0; ++ ++ if (func == GPIO_EVENT_FUNC_INIT) { ++ int output_level = !(oi->flags & GPIOEDF_ACTIVE_HIGH); ++ for (i = 0; i < oi->keymap_size; i++) ++ input_set_capability(input_dev, oi->type, ++ oi->keymap[i].code); ++ ++ for (i = 0; i < oi->keymap_size; i++) { ++ ret = gpio_request(oi->keymap[i].gpio, ++ "gpio_event_output"); ++ if (ret) { ++ pr_err("gpio_event_output_func: gpio_request " ++ "failed for %d\n", oi->keymap[i].gpio); ++ goto err_gpio_request_failed; ++ } ++ ret = gpio_direction_output(oi->keymap[i].gpio, ++ output_level); ++ if (ret) { ++ pr_err("gpio_event_output_func: " ++ "gpio_direction_output failed for %d\n", ++ oi->keymap[i].gpio); ++ goto err_gpio_direction_output_failed; ++ } ++ } ++ return 0; ++ } ++ ++ ret = 0; ++ for (i = oi->keymap_size - 1; i >= 0; i--) { ++err_gpio_direction_output_failed: ++ gpio_free(oi->keymap[i].gpio); ++err_gpio_request_failed: ++ ; ++ } ++ return ret; ++} ++ +--- /dev/null ++++ b/include/linux/gpio_event.h +@@ -0,0 +1,154 @@ ++/* include/linux/gpio_event.h ++ * ++ * Copyright (C) 2007 Google, Inc. ++ * ++ * This software is licensed under the terms of the GNU General Public ++ * License version 2, as published by the Free Software Foundation, and ++ * may be copied, distributed, and modified under those terms. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ * ++ */ ++ ++#ifndef _LINUX_GPIO_EVENT_H ++#define _LINUX_GPIO_EVENT_H ++ ++#include <linux/input.h> ++ ++enum { ++ GPIO_EVENT_FUNC_UNINIT = 0x0, ++ GPIO_EVENT_FUNC_INIT = 0x1, ++ GPIO_EVENT_FUNC_SUSPEND = 0x2, ++ GPIO_EVENT_FUNC_RESUME = 0x3, ++}; ++struct gpio_event_info { ++ int (*func)(struct input_dev *input_dev, ++ struct gpio_event_info *info, ++ void **data, int func); ++ int (*event)(struct input_dev *input_dev, ++ struct gpio_event_info *info, ++ void **data, unsigned int type, ++ unsigned int code, int value); /* out events */ ++}; ++ ++struct gpio_event_platform_data { ++ const char *name; ++ struct gpio_event_info **info; ++ size_t info_count; ++ int (*power)(const struct gpio_event_platform_data *pdata, bool on); ++}; ++ ++#define GPIO_EVENT_DEV_NAME "gpio-event" ++ ++/* Key matrix */ ++ ++enum gpio_event_matrix_flags { ++ /* unset: drive active output low, set: drive active output high */ ++ GPIOKPF_ACTIVE_HIGH = 1U << 0, ++ GPIOKPF_DEBOUNCE = 1U << 1, ++ GPIOKPF_REMOVE_SOME_PHANTOM_KEYS = 1U << 2, ++ GPIOKPF_REMOVE_PHANTOM_KEYS = GPIOKPF_REMOVE_SOME_PHANTOM_KEYS | ++ GPIOKPF_DEBOUNCE, ++ GPIOKPF_DRIVE_INACTIVE = 1U << 3, ++ GPIOKPF_LEVEL_TRIGGERED_IRQ = 1U << 4, ++ GPIOKPF_PRINT_UNMAPPED_KEYS = 1U << 16, ++ GPIOKPF_PRINT_MAPPED_KEYS = 1U << 17, ++ GPIOKPF_PRINT_PHANTOM_KEYS = 1U << 18, ++}; ++ ++extern int gpio_event_matrix_func(struct input_dev *input_dev, ++ struct gpio_event_info *info, void **data, int func); ++struct gpio_event_matrix_info { ++ /* initialize to gpio_event_matrix_func */ ++ struct gpio_event_info info; ++ /* size must be ninputs * noutputs */ ++ const unsigned short *keymap; ++ unsigned int *input_gpios; ++ unsigned int *output_gpios; ++ unsigned int ninputs; ++ unsigned int noutputs; ++ /* time to wait before reading inputs after driving each output */ ++ ktime_t settle_time; ++ /* time to wait before scanning the keypad a second time */ ++ ktime_t debounce_delay; ++ ktime_t poll_time; ++ unsigned flags; ++}; ++ ++/* Directly connected inputs and outputs */ ++ ++enum gpio_event_direct_flags { ++ GPIOEDF_ACTIVE_HIGH = 1U << 0, ++/* GPIOEDF_USE_DOWN_IRQ = 1U << 1, */ ++/* GPIOEDF_USE_IRQ = (1U << 2) | GPIOIDF_USE_DOWN_IRQ, */ ++ GPIOEDF_PRINT_KEYS = 1U << 8, ++ GPIOEDF_PRINT_KEY_DEBOUNCE = 1U << 9, ++}; ++ ++struct gpio_event_direct_entry { ++ uint32_t gpio:23; ++ uint32_t code:9; ++}; ++ ++/* inputs */ ++extern int gpio_event_input_func(struct input_dev *input_dev, ++ struct gpio_event_info *info, void **data, int func); ++struct gpio_event_input_info { ++ /* initialize to gpio_event_input_func */ ++ struct gpio_event_info info; ++ ktime_t debounce_time; ++ ktime_t poll_time; ++ uint16_t flags; ++ uint16_t type; ++ const struct gpio_event_direct_entry *keymap; ++ size_t keymap_size; ++}; ++ ++/* outputs */ ++extern int gpio_event_output_func(struct input_dev *input_dev, ++ struct gpio_event_info *info, void **data, int func); ++extern int gpio_event_output_event(struct input_dev *input_dev, ++ struct gpio_event_info *info, void **data, ++ unsigned int type, unsigned int code, int value); ++struct gpio_event_output_info { ++ /* initialize to gpio_event_output_func and gpio_event_output_event */ ++ struct gpio_event_info info; ++ uint16_t flags; ++ uint16_t type; ++ const struct gpio_event_direct_entry *keymap; ++ size_t keymap_size; ++}; ++ ++ ++/* axes */ ++ ++enum gpio_event_axis_flags { ++ GPIOEAF_PRINT_UNKNOWN_DIRECTION = 1U << 16, ++ GPIOEAF_PRINT_RAW = 1U << 17, ++ GPIOEAF_PRINT_EVENT = 1U << 18, ++}; ++ ++extern int gpio_event_axis_func(struct input_dev *input_dev, ++ struct gpio_event_info *info, void **data, int func); ++struct gpio_event_axis_info { ++ /* initialize to gpio_event_axis_func */ ++ struct gpio_event_info info; ++ uint8_t count; ++ uint8_t type; /* EV_REL or EV_ABS */ ++ uint16_t code; ++ uint16_t decoded_size; ++ uint16_t (*map)(struct gpio_event_axis_info *info, uint16_t in); ++ uint32_t *gpio; ++ uint32_t flags; ++}; ++#define gpio_axis_2bit_gray_map gpio_axis_4bit_gray_map ++#define gpio_axis_3bit_gray_map gpio_axis_4bit_gray_map ++uint16_t gpio_axis_4bit_gray_map( ++ struct gpio_event_axis_info *info, uint16_t in); ++uint16_t gpio_axis_5bit_singletrack_map( ++ struct gpio_event_axis_info *info, uint16_t in); ++ ++#endif diff --git a/target/linux/goldfish/patches-2.6.30/0087-Input-Hold-wake-lock-while-event-queue-is-not-empty.patch b/target/linux/goldfish/patches-2.6.30/0087-Input-Hold-wake-lock-while-event-queue-is-not-empty.patch new file mode 100644 index 0000000000..e85f7a3db6 --- /dev/null +++ b/target/linux/goldfish/patches-2.6.30/0087-Input-Hold-wake-lock-while-event-queue-is-not-empty.patch @@ -0,0 +1,67 @@ +From 0d1077627288e51b5604f270eae6cf9f5ccd3871 Mon Sep 17 00:00:00 2001 +From: =?utf-8?q?Arve=20Hj=C3=B8nnev=C3=A5g?= <arve@android.com> +Date: Fri, 17 Oct 2008 15:20:55 -0700 +Subject: [PATCH 087/134] Input: Hold wake lock while event queue is not empty. +MIME-Version: 1.0 +Content-Type: text/plain; charset=utf-8 +Content-Transfer-Encoding: 8bit + +Allows userspace code to process input events while +the device appears to be asleep. + +Signed-off-by: Arve HjønnevÃ¥g <arve@android.com> +--- + drivers/input/evdev.c | 7 +++++++ + 1 files changed, 7 insertions(+), 0 deletions(-) + +--- a/drivers/input/evdev.c ++++ b/drivers/input/evdev.c +@@ -19,6 +19,7 @@ + #include <linux/input.h> + #include <linux/major.h> + #include <linux/device.h> ++#include <linux/wakelock.h> + #include "input-compat.h" + + struct evdev { +@@ -43,6 +44,7 @@ struct evdev_client { + struct fasync_struct *fasync; + struct evdev *evdev; + struct list_head node; ++ struct wake_lock wake_lock; + }; + + static struct evdev *evdev_table[EVDEV_MINORS]; +@@ -55,6 +57,7 @@ static void evdev_pass_event(struct evde + * Interrupts are disabled, just acquire the lock + */ + spin_lock(&client->buffer_lock); ++ wake_lock_timeout(&client->wake_lock, 5 * HZ); + client->buffer[client->head++] = *event; + client->head &= EVDEV_BUFFER_SIZE - 1; + spin_unlock(&client->buffer_lock); +@@ -233,6 +236,7 @@ static int evdev_release(struct inode *i + mutex_unlock(&evdev->mutex); + + evdev_detach_client(evdev, client); ++ wake_lock_destroy(&client->wake_lock); + kfree(client); + + evdev_close_device(evdev); +@@ -269,6 +273,7 @@ static int evdev_open(struct inode *inod + } + + spin_lock_init(&client->buffer_lock); ++ wake_lock_init(&client->wake_lock, WAKE_LOCK_SUSPEND, "evdev"); + client->evdev = evdev; + evdev_attach_client(evdev, client); + +@@ -332,6 +337,8 @@ static int evdev_fetch_next_event(struct + if (have_event) { + *event = client->buffer[client->tail++]; + client->tail &= EVDEV_BUFFER_SIZE - 1; ++ if (client->head == client->tail) ++ wake_unlock(&client->wake_lock); + } + + spin_unlock_irq(&client->buffer_lock); diff --git a/target/linux/goldfish/patches-2.6.30/0088-Input-Use-monotonic-time-for-event-time-stamps.patch b/target/linux/goldfish/patches-2.6.30/0088-Input-Use-monotonic-time-for-event-time-stamps.patch new file mode 100644 index 0000000000..6ca183ca71 --- /dev/null +++ b/target/linux/goldfish/patches-2.6.30/0088-Input-Use-monotonic-time-for-event-time-stamps.patch @@ -0,0 +1,31 @@ +From 474db0e1425f8da03a7d49ebba1602efa503c73f Mon Sep 17 00:00:00 2001 +From: =?utf-8?q?Arve=20Hj=C3=B8nnev=C3=A5g?= <arve@android.com> +Date: Fri, 17 Oct 2008 15:28:08 -0700 +Subject: [PATCH 088/134] Input: Use monotonic time for event time stamps. +MIME-Version: 1.0 +Content-Type: text/plain; charset=utf-8 +Content-Transfer-Encoding: 8bit + +Since wall time can jump backwards, it cannot be used to determine if one +event occured before another or for how long a key was pressed. + +Signed-off-by: Arve HjønnevÃ¥g <arve@android.com> +--- + drivers/input/evdev.c | 5 ++++- + 1 files changed, 4 insertions(+), 1 deletions(-) + +--- a/drivers/input/evdev.c ++++ b/drivers/input/evdev.c +@@ -74,8 +74,11 @@ static void evdev_event(struct input_han + struct evdev *evdev = handle->private; + struct evdev_client *client; + struct input_event event; ++ struct timespec ts; + +- do_gettimeofday(&event.time); ++ ktime_get_ts(&ts); ++ event.time.tv_sec = ts.tv_sec; ++ event.time.tv_usec = ts.tv_nsec / NSEC_PER_USEC; + event.type = type; + event.code = code; + event.value = value; diff --git a/target/linux/goldfish/patches-2.6.30/0090-input-Add-keyreset-driver.patch b/target/linux/goldfish/patches-2.6.30/0090-input-Add-keyreset-driver.patch new file mode 100644 index 0000000000..0af1c5617d --- /dev/null +++ b/target/linux/goldfish/patches-2.6.30/0090-input-Add-keyreset-driver.patch @@ -0,0 +1,313 @@ +From eb92150c047e76960ecf8989b9037fd34b43a4af Mon Sep 17 00:00:00 2001 +From: =?utf-8?q?Arve=20Hj=C3=B8nnev=C3=A5g?= <arve@android.com> +Date: Fri, 21 Nov 2008 21:47:23 -0800 +Subject: [PATCH 090/134] input: Add keyreset driver. +MIME-Version: 1.0 +Content-Type: text/plain; charset=utf-8 +Content-Transfer-Encoding: 8bit + +Add a platform device in the board file to specify a reset key-combo. +The first time the key-combo is detected a work function that syncs +the filesystems is scheduled. If all the keys are released and then +pressed again, it calls panic. Reboot on panic should be set for +this to work. + +Signed-off-by: Arve HjønnevÃ¥g <arve@android.com> +--- + drivers/input/Kconfig | 9 ++ + drivers/input/Makefile | 1 + + drivers/input/keyreset.c | 229 ++++++++++++++++++++++++++++++++++++++++++++++ + include/linux/keyreset.h | 27 ++++++ + 4 files changed, 266 insertions(+), 0 deletions(-) + create mode 100644 drivers/input/keyreset.c + create mode 100644 include/linux/keyreset.h + +--- a/drivers/input/Kconfig ++++ b/drivers/input/Kconfig +@@ -149,6 +149,15 @@ config INPUT_APMPOWER + To compile this driver as a module, choose M here: the + module will be called apm-power. + ++config INPUT_KEYRESET ++ tristate "Reset key" ++ depends on INPUT ++ ---help--- ++ Say Y here if you want to reboot when some keys are pressed; ++ ++ To compile this driver as a module, choose M here: the ++ module will be called keyreset. ++ + config XEN_KBDDEV_FRONTEND + tristate "Xen virtual keyboard and mouse support" + depends on XEN_FBDEV_FRONTEND +--- a/drivers/input/Makefile ++++ b/drivers/input/Makefile +@@ -23,5 +23,6 @@ obj-$(CONFIG_INPUT_TOUCHSCREEN) += touch + obj-$(CONFIG_INPUT_MISC) += misc/ + + obj-$(CONFIG_INPUT_APMPOWER) += apm-power.o ++obj-$(CONFIG_INPUT_KEYRESET) += keyreset.o + + obj-$(CONFIG_XEN_KBDDEV_FRONTEND) += xen-kbdfront.o +--- /dev/null ++++ b/drivers/input/keyreset.c +@@ -0,0 +1,229 @@ ++/* drivers/input/keyreset.c ++ * ++ * Copyright (C) 2008 Google, Inc. ++ * ++ * This software is licensed under the terms of the GNU General Public ++ * License version 2, as published by the Free Software Foundation, and ++ * may be copied, distributed, and modified under those terms. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ * ++ */ ++ ++#include <linux/input.h> ++#include <linux/keyreset.h> ++#include <linux/module.h> ++#include <linux/platform_device.h> ++#include <linux/reboot.h> ++#include <linux/sched.h> ++#include <linux/syscalls.h> ++ ++ ++struct keyreset_state { ++ struct input_handler input_handler; ++ unsigned long keybit[BITS_TO_LONGS(KEY_CNT)]; ++ unsigned long upbit[BITS_TO_LONGS(KEY_CNT)]; ++ unsigned long key[BITS_TO_LONGS(KEY_CNT)]; ++ spinlock_t lock; ++ int key_down_target; ++ int key_down; ++ int key_up; ++ int restart_disabled; ++}; ++ ++int restart_requested; ++static void deferred_restart(struct work_struct *dummy) ++{ ++ restart_requested = 2; ++ sys_sync(); ++ restart_requested = 3; ++ kernel_restart(NULL); ++} ++static DECLARE_WORK(restart_work, deferred_restart); ++ ++static void keyreset_event(struct input_handle *handle, unsigned int type, ++ unsigned int code, int value) ++{ ++ unsigned long flags; ++ struct keyreset_state *state = handle->private; ++ ++ if (type != EV_KEY) ++ return; ++ ++ if (code >= KEY_MAX) ++ return; ++ ++ if (!test_bit(code, state->keybit)) ++ return; ++ ++ spin_lock_irqsave(&state->lock, flags); ++ if (!test_bit(code, state->key) == !value) ++ goto done; ++ __change_bit(code, state->key); ++ if (test_bit(code, state->upbit)) { ++ if (value) { ++ state->restart_disabled = 1; ++ state->key_up++; ++ } else ++ state->key_up--; ++ } else { ++ if (value) ++ state->key_down++; ++ else ++ state->key_down--; ++ } ++ if (state->key_down == 0 && state->key_up == 0) ++ state->restart_disabled = 0; ++ ++ pr_debug("reset key changed %d %d new state %d-%d-%d\n", code, value, ++ state->key_down, state->key_up, state->restart_disabled); ++ ++ if (value && !state->restart_disabled && ++ state->key_down == state->key_down_target) { ++ state->restart_disabled = 1; ++ if (restart_requested) ++ panic("keyboard reset failed, %d", restart_requested); ++ pr_info("keyboard reset\n"); ++ schedule_work(&restart_work); ++ restart_requested = 1; ++ } ++done: ++ spin_unlock_irqrestore(&state->lock, flags); ++} ++ ++static int keyreset_connect(struct input_handler *handler, ++ struct input_dev *dev, ++ const struct input_device_id *id) ++{ ++ int i; ++ int ret; ++ struct input_handle *handle; ++ struct keyreset_state *state = ++ container_of(handler, struct keyreset_state, input_handler); ++ ++ for (i = 0; i < KEY_MAX; i++) { ++ if (test_bit(i, state->keybit) && test_bit(i, dev->keybit)) ++ break; ++ } ++ if (i == KEY_MAX) ++ return -ENODEV; ++ ++ handle = kzalloc(sizeof(*handle), GFP_KERNEL); ++ if (!handle) ++ return -ENOMEM; ++ ++ handle->dev = dev; ++ handle->handler = handler; ++ handle->name = "keyreset"; ++ handle->private = state; ++ ++ ret = input_register_handle(handle); ++ if (ret) ++ goto err_input_register_handle; ++ ++ ret = input_open_device(handle); ++ if (ret) ++ goto err_input_open_device; ++ ++ pr_info("using input dev %s for key reset\n", dev->name); ++ ++ return 0; ++ ++err_input_open_device: ++ input_unregister_handle(handle); ++err_input_register_handle: ++ kfree(handle); ++ return ret; ++} ++ ++static void keyreset_disconnect(struct input_handle *handle) ++{ ++ input_close_device(handle); ++ input_unregister_handle(handle); ++ kfree(handle); ++} ++ ++static const struct input_device_id keyreset_ids[] = { ++ { ++ .flags = INPUT_DEVICE_ID_MATCH_EVBIT, ++ .evbit = { BIT_MASK(EV_KEY) }, ++ }, ++ { }, ++}; ++MODULE_DEVICE_TABLE(input, keyreset_ids); ++ ++static int keyreset_probe(struct platform_device *pdev) ++{ ++ int ret; ++ int key, *keyp; ++ struct keyreset_state *state; ++ struct keyreset_platform_data *pdata = pdev->dev.platform_data; ++ ++ if (!pdata) ++ return -EINVAL; ++ ++ state = kzalloc(sizeof(*state), GFP_KERNEL); ++ if (!state) ++ return -ENOMEM; ++ ++ spin_lock_init(&state->lock); ++ keyp = pdata->keys_down; ++ while ((key = *keyp++)) { ++ if (key >= KEY_MAX) ++ continue; ++ state->key_down_target++; ++ __set_bit(key, state->keybit); ++ } ++ if (pdata->keys_up) { ++ keyp = pdata->keys_up; ++ while ((key = *keyp++)) { ++ if (key >= KEY_MAX) ++ continue; ++ __set_bit(key, state->keybit); ++ __set_bit(key, state->upbit); ++ } ++ } ++ state->input_handler.event = keyreset_event; ++ state->input_handler.connect = keyreset_connect; ++ state->input_handler.disconnect = keyreset_disconnect; ++ state->input_handler.name = KEYRESET_NAME; ++ state->input_handler.id_table = keyreset_ids; ++ ret = input_register_handler(&state->input_handler); ++ if (ret) { ++ kfree(state); ++ return ret; ++ } ++ platform_set_drvdata(pdev, state); ++ return 0; ++} ++ ++int keyreset_remove(struct platform_device *pdev) ++{ ++ struct keyreset_state *state = platform_get_drvdata(pdev); ++ input_unregister_handler(&state->input_handler); ++ kfree(state); ++ return 0; ++} ++ ++ ++struct platform_driver keyreset_driver = { ++ .driver.name = KEYRESET_NAME, ++ .probe = keyreset_probe, ++ .remove = keyreset_remove, ++}; ++ ++static int __init keyreset_init(void) ++{ ++ return platform_driver_register(&keyreset_driver); ++} ++ ++static void __exit keyreset_exit(void) ++{ ++ return platform_driver_unregister(&keyreset_driver); ++} ++ ++module_init(keyreset_init); ++module_exit(keyreset_exit); +--- /dev/null ++++ b/include/linux/keyreset.h +@@ -0,0 +1,27 @@ ++/* ++ * include/linux/keyreset.h - platform data structure for resetkeys driver ++ * ++ * Copyright (C) 2008 Google, Inc. ++ * ++ * This software is licensed under the terms of the GNU General Public ++ * License version 2, as published by the Free Software Foundation, and ++ * may be copied, distributed, and modified under those terms. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ * ++ */ ++ ++#ifndef _LINUX_KEYRESET_H ++#define _LINUX_KEYRESET_H ++ ++#define KEYRESET_NAME "keyreset" ++ ++struct keyreset_platform_data { ++ int *keys_up; ++ int keys_down[]; /* 0 terminated */ ++}; ++ ++#endif /* _LINUX_KEYRESET_H */ diff --git a/target/linux/goldfish/patches-2.6.30/0093-mmc-Add-status-IRQ-and-status-callback-function-to.patch b/target/linux/goldfish/patches-2.6.30/0093-mmc-Add-status-IRQ-and-status-callback-function-to.patch new file mode 100644 index 0000000000..8fb7ade2d5 --- /dev/null +++ b/target/linux/goldfish/patches-2.6.30/0093-mmc-Add-status-IRQ-and-status-callback-function-to.patch @@ -0,0 +1,21 @@ +From 2cae40a6a76e9e440f146ce0402aed40a7c127ca Mon Sep 17 00:00:00 2001 +From: San Mehat <san@google.com> +Date: Mon, 10 Nov 2008 16:29:50 -0800 +Subject: [PATCH 093/134] mmc: Add status IRQ and status callback function to mmc platform data + +Signed-off-by: San Mehat <san@google.com> +--- + arch/arm/include/asm/mach/mmc.h | 2 ++ + 1 files changed, 2 insertions(+), 0 deletions(-) + +--- a/arch/arm/include/asm/mach/mmc.h ++++ b/arch/arm/include/asm/mach/mmc.h +@@ -10,6 +10,8 @@ struct mmc_platform_data { + unsigned int ocr_mask; /* available voltages */ + u32 (*translate_vdd)(struct device *, unsigned int); + unsigned int (*status)(struct device *); ++ unsigned int status_irq; ++ int (*register_status_notify)(void (*callback)(int card_present, void *dev_id), void *dev_id); + }; + + #endif diff --git a/target/linux/goldfish/patches-2.6.30/0094-mmc-sd-Add-new-CONFIG_MMC_PARANOID_SD_INIT-for-ena.patch b/target/linux/goldfish/patches-2.6.30/0094-mmc-sd-Add-new-CONFIG_MMC_PARANOID_SD_INIT-for-ena.patch new file mode 100644 index 0000000000..275504b358 --- /dev/null +++ b/target/linux/goldfish/patches-2.6.30/0094-mmc-sd-Add-new-CONFIG_MMC_PARANOID_SD_INIT-for-ena.patch @@ -0,0 +1,69 @@ +From 66983857a54479d76ce6dbd8399e1276698bd3c5 Mon Sep 17 00:00:00 2001 +From: San Mehat <san@google.com> +Date: Tue, 11 Nov 2008 09:35:36 -0800 +Subject: [PATCH 094/134] mmc: sd: Add new CONFIG_MMC_PARANOID_SD_INIT for enabling retries during SD detection + +Signed-off-by: San Mehat <san@google.com> +--- + drivers/mmc/core/Kconfig | 8 ++++++++ + drivers/mmc/core/sd.c | 24 ++++++++++++++++++++++-- + 2 files changed, 30 insertions(+), 2 deletions(-) + +--- a/drivers/mmc/core/Kconfig ++++ b/drivers/mmc/core/Kconfig +@@ -14,3 +14,11 @@ config MMC_UNSAFE_RESUME + This option is usually just for embedded systems which use + a MMC/SD card for rootfs. Most people should say N here. + ++config MMC_PARANOID_SD_INIT ++ bool "Enable paranoid SD card initialization (EXPERIMENTAL)" ++ help ++ If you say Y here, the MMC layer will be extra paranoid ++ about re-trying SD init requests. This can be a useful ++ work-around for buggy controllers and hardware. Enable ++ if you are experiencing issues with SD detection. ++ +--- a/drivers/mmc/core/sd.c ++++ b/drivers/mmc/core/sd.c +@@ -336,7 +336,9 @@ static int mmc_sd_init_card(struct mmc_h + int err; + u32 cid[4]; + unsigned int max_dtr; +- ++#ifdef CONFIG_MMC_PARANOID_SD_INIT ++ int retries; ++#endif + BUG_ON(!host); + WARN_ON(!host->claimed); + +@@ -439,11 +441,29 @@ static int mmc_sd_init_card(struct mmc_h + err = mmc_decode_scr(card); + if (err < 0) + goto free_card; +- + /* + * Fetch switch information from card. + */ ++#ifdef CONFIG_MMC_PARANOID_SD_INIT ++ for (retries = 1; retries <= 3; retries++) { ++ err = mmc_read_switch(card); ++ if (!err) { ++ if (retries > 1) { ++ printk(KERN_WARNING ++ "%s: recovered\n", ++ mmc_hostname(host)); ++ } ++ break; ++ } else { ++ printk(KERN_WARNING ++ "%s: read switch failed (attempt %d)\n", ++ mmc_hostname(host), retries); ++ } ++ } ++#else + err = mmc_read_switch(card); ++#endif ++ + if (err) + goto free_card; + } diff --git a/target/linux/goldfish/patches-2.6.30/0095-mmc-Add-concept-of-an-embedded-SDIO-device.patch b/target/linux/goldfish/patches-2.6.30/0095-mmc-Add-concept-of-an-embedded-SDIO-device.patch new file mode 100644 index 0000000000..e3f0eb4811 --- /dev/null +++ b/target/linux/goldfish/patches-2.6.30/0095-mmc-Add-concept-of-an-embedded-SDIO-device.patch @@ -0,0 +1,274 @@ +From 62d51f0d0d0b3c758b4505c3855b61288b8e90aa Mon Sep 17 00:00:00 2001 +From: San Mehat <san@android.com> +Date: Mon, 14 Apr 2008 15:22:49 -0700 +Subject: [PATCH 095/134] mmc: Add concept of an 'embedded' SDIO device. + +This is required to support chips which use SDIO for signaling/ +communication but do not implement the various card enumeration registers +as required for full SD / SDIO cards. + +mmc: sdio: Fix bug where we're freeing the CIS tables we never allocated when using EMBEDDED_SDIO +mmc: Add max_blksize to embedded SDIO data + +Signed-off-by: San Mehat <san@google.com> +--- + arch/arm/include/asm/mach/mmc.h | 10 ++++++ + drivers/mmc/core/Kconfig | 10 +++++- + drivers/mmc/core/core.c | 16 +++++++++ + drivers/mmc/core/sdio.c | 67 ++++++++++++++++++++++++++++++++------- + drivers/mmc/core/sdio_bus.c | 13 +++++++- + include/linux/mmc/host.h | 17 ++++++++++ + include/linux/mmc/sdio_func.h | 8 +++++ + 7 files changed, 127 insertions(+), 14 deletions(-) + +--- a/arch/arm/include/asm/mach/mmc.h ++++ b/arch/arm/include/asm/mach/mmc.h +@@ -5,12 +5,22 @@ + #define ASMARM_MACH_MMC_H + + #include <linux/mmc/host.h> ++#include <linux/mmc/card.h> ++#include <linux/mmc/sdio_func.h> ++ ++struct embedded_sdio_data { ++ struct sdio_cis cis; ++ struct sdio_cccr cccr; ++ struct sdio_embedded_func *funcs; ++ int num_funcs; ++}; + + struct mmc_platform_data { + unsigned int ocr_mask; /* available voltages */ + u32 (*translate_vdd)(struct device *, unsigned int); + unsigned int (*status)(struct device *); + unsigned int status_irq; ++ struct embedded_sdio_data *embedded_sdio; + int (*register_status_notify)(void (*callback)(int card_present, void *dev_id), void *dev_id); + }; + +--- a/drivers/mmc/core/Kconfig ++++ b/drivers/mmc/core/Kconfig +@@ -14,11 +14,19 @@ config MMC_UNSAFE_RESUME + This option is usually just for embedded systems which use + a MMC/SD card for rootfs. Most people should say N here. + ++config MMC_EMBEDDED_SDIO ++ boolean "MMC embedded SDIO device support (EXPERIMENTAL)" ++ depends on EXPERIMENTAL ++ help ++ If you say Y here, support will be added for embedded SDIO ++ devices which do not contain the necessary enumeration ++ support in hardware to be properly detected. ++ + config MMC_PARANOID_SD_INIT + bool "Enable paranoid SD card initialization (EXPERIMENTAL)" ++ depends on EXPERIMENTAL + help + If you say Y here, the MMC layer will be extra paranoid + about re-trying SD init requests. This can be a useful + work-around for buggy controllers and hardware. Enable + if you are experiencing issues with SD detection. +- +--- a/drivers/mmc/core/core.c ++++ b/drivers/mmc/core/core.c +@@ -1011,6 +1011,22 @@ EXPORT_SYMBOL(mmc_resume_host); + + #endif + ++#ifdef CONFIG_MMC_EMBEDDED_SDIO ++void mmc_set_embedded_sdio_data(struct mmc_host *host, ++ struct sdio_cis *cis, ++ struct sdio_cccr *cccr, ++ struct sdio_embedded_func *funcs, ++ int num_funcs) ++{ ++ host->embedded_sdio_data.cis = cis; ++ host->embedded_sdio_data.cccr = cccr; ++ host->embedded_sdio_data.funcs = funcs; ++ host->embedded_sdio_data.num_funcs = num_funcs; ++} ++ ++EXPORT_SYMBOL(mmc_set_embedded_sdio_data); ++#endif ++ + static int __init mmc_init(void) + { + int ret; +--- a/drivers/mmc/core/sdio.c ++++ b/drivers/mmc/core/sdio.c +@@ -24,6 +24,10 @@ + #include "sdio_ops.h" + #include "sdio_cis.h" + ++#ifdef CONFIG_MMC_EMBEDDED_SDIO ++#include <linux/mmc/sdio_ids.h> ++#endif ++ + static int sdio_read_fbr(struct sdio_func *func) + { + int ret; +@@ -314,6 +318,11 @@ int mmc_attach_sdio(struct mmc_host *hos + */ + funcs = (ocr & 0x70000000) >> 28; + ++#ifdef CONFIG_MMC_EMBEDDED_SDIO ++ if (host->embedded_sdio_data.funcs) ++ funcs = host->embedded_sdio_data.num_funcs; ++#endif ++ + /* + * Allocate card structure. + */ +@@ -351,17 +360,33 @@ int mmc_attach_sdio(struct mmc_host *hos + /* + * Read the common registers. + */ +- err = sdio_read_cccr(card); +- if (err) +- goto remove; + +- /* +- * Read the common CIS tuples. +- */ +- err = sdio_read_common_cis(card); +- if (err) +- goto remove; ++#ifdef CONFIG_MMC_EMBEDDED_SDIO ++ if (host->embedded_sdio_data.cccr) ++ memcpy(&card->cccr, host->embedded_sdio_data.cccr, sizeof(struct sdio_cccr)); ++ else { ++#endif ++ err = sdio_read_cccr(card); ++ if (err) ++ goto remove; ++#ifdef CONFIG_MMC_EMBEDDED_SDIO ++ } ++#endif + ++#ifdef CONFIG_MMC_EMBEDDED_SDIO ++ if (host->embedded_sdio_data.cis) ++ memcpy(&card->cis, host->embedded_sdio_data.cis, sizeof(struct sdio_cis)); ++ else { ++#endif ++ /* ++ * Read the common CIS tuples. ++ */ ++ err = sdio_read_common_cis(card); ++ if (err) ++ goto remove; ++#ifdef CONFIG_MMC_EMBEDDED_SDIO ++ } ++#endif + /* + * Switch to high-speed (if supported). + */ +@@ -395,9 +420,27 @@ int mmc_attach_sdio(struct mmc_host *hos + * Initialize (but don't add) all present functions. + */ + for (i = 0;i < funcs;i++) { +- err = sdio_init_func(host->card, i + 1); +- if (err) +- goto remove; ++#ifdef CONFIG_MMC_EMBEDDED_SDIO ++ if (host->embedded_sdio_data.funcs) { ++ struct sdio_func *tmp; ++ ++ tmp = sdio_alloc_func(host->card); ++ if (IS_ERR(tmp)) ++ goto remove; ++ tmp->num = (i + 1); ++ card->sdio_func[i] = tmp; ++ tmp->class = host->embedded_sdio_data.funcs[i].f_class; ++ tmp->max_blksize = host->embedded_sdio_data.funcs[i].f_maxblksize; ++ tmp->vendor = card->cis.vendor; ++ tmp->device = card->cis.device; ++ } else { ++#endif ++ err = sdio_init_func(host->card, i + 1); ++ if (err) ++ goto remove; ++#ifdef CONFIG_MMC_EMBEDDED_SDIO ++ } ++#endif + } + + mmc_release_host(host); +--- a/drivers/mmc/core/sdio_bus.c ++++ b/drivers/mmc/core/sdio_bus.c +@@ -20,6 +20,10 @@ + #include "sdio_cis.h" + #include "sdio_bus.h" + ++#ifdef CONFIG_MMC_EMBEDDED_SDIO ++#include <linux/mmc/host.h> ++#endif ++ + #define dev_to_sdio_func(d) container_of(d, struct sdio_func, dev) + #define to_sdio_driver(d) container_of(d, struct sdio_driver, drv) + +@@ -202,7 +206,14 @@ static void sdio_release_func(struct dev + { + struct sdio_func *func = dev_to_sdio_func(dev); + +- sdio_free_func_cis(func); ++#ifdef CONFIG_MMC_EMBEDDED_SDIO ++ /* ++ * If this device is embedded then we never allocated ++ * cis tables for this func ++ */ ++ if (!func->card->host->embedded_sdio_data.funcs) ++#endif ++ sdio_free_func_cis(func); + + if (func->info) + kfree(func->info); +--- a/include/linux/mmc/host.h ++++ b/include/linux/mmc/host.h +@@ -161,6 +161,15 @@ struct mmc_host { + + struct dentry *debugfs_root; + ++#ifdef CONFIG_MMC_EMBEDDED_SDIO ++ struct { ++ struct sdio_cis *cis; ++ struct sdio_cccr *cccr; ++ struct sdio_embedded_func *funcs; ++ int num_funcs; ++ } embedded_sdio_data; ++#endif ++ + unsigned long private[0] ____cacheline_aligned; + }; + +@@ -169,6 +178,14 @@ extern int mmc_add_host(struct mmc_host + extern void mmc_remove_host(struct mmc_host *); + extern void mmc_free_host(struct mmc_host *); + ++#ifdef CONFIG_MMC_EMBEDDED_SDIO ++extern void mmc_set_embedded_sdio_data(struct mmc_host *host, ++ struct sdio_cis *cis, ++ struct sdio_cccr *cccr, ++ struct sdio_embedded_func *funcs, ++ int num_funcs); ++#endif ++ + static inline void *mmc_priv(struct mmc_host *host) + { + return (void *)host->private; +--- a/include/linux/mmc/sdio_func.h ++++ b/include/linux/mmc/sdio_func.h +@@ -21,6 +21,14 @@ struct sdio_func; + typedef void (sdio_irq_handler_t)(struct sdio_func *); + + /* ++ * Structure used to hold embedded SDIO device data from platform layer ++ */ ++struct sdio_embedded_func { ++ uint8_t f_class; ++ uint32_t f_maxblksize; ++}; ++ ++/* + * SDIO function CIS tuple (unknown to the core) + */ + struct sdio_func_tuple { diff --git a/target/linux/goldfish/patches-2.6.30/0097-mmc-Add-new-API-call-sdio_reset_comm-for-resettin.patch b/target/linux/goldfish/patches-2.6.30/0097-mmc-Add-new-API-call-sdio_reset_comm-for-resettin.patch new file mode 100644 index 0000000000..59cd702b56 --- /dev/null +++ b/target/linux/goldfish/patches-2.6.30/0097-mmc-Add-new-API-call-sdio_reset_comm-for-resettin.patch @@ -0,0 +1,74 @@ +From 0b9879757f15d4ac99e032647cb3ee26393031b0 Mon Sep 17 00:00:00 2001 +From: San Mehat <san@android.com> +Date: Thu, 15 May 2008 09:15:37 -0700 +Subject: [PATCH 097/134] mmc: Add new API call 'sdio_reset_comm' for resetting communication with an SDIO device + +Signed-off-by: San Mehat <san@android.com> +--- + drivers/mmc/core/sdio.c | 58 +++++++++++++++++++++++++++++++++++++++++++++++ + 1 files changed, 58 insertions(+), 0 deletions(-) + +--- a/drivers/mmc/core/sdio.c ++++ b/drivers/mmc/core/sdio.c +@@ -482,3 +482,61 @@ err: + return err; + } + ++int sdio_reset_comm(struct mmc_card *card) ++{ ++ struct mmc_host *host = card->host; ++ u32 ocr; ++ int err; ++ ++ printk("%s():\n", __func__); ++ mmc_go_idle(host); ++ ++ mmc_set_clock(host, host->f_min); ++ ++ err = mmc_send_io_op_cond(host, 0, &ocr); ++ if (err) ++ goto err; ++ ++ host->ocr = mmc_select_voltage(host, ocr); ++ if (!host->ocr) { ++ err = -EINVAL; ++ goto err; ++ } ++ ++ err = mmc_send_io_op_cond(host, host->ocr, &ocr); ++ if (err) ++ goto err; ++ ++ if (mmc_host_is_spi(host)) { ++ err = mmc_spi_set_crc(host, use_spi_crc); ++ if (err) ++ goto err; ++ } ++ ++ if (!mmc_host_is_spi(host)) { ++ err = mmc_send_relative_addr(host, &card->rca); ++ if (err) ++ goto err; ++ mmc_set_bus_mode(host, MMC_BUSMODE_PUSHPULL); ++ } ++ if (!mmc_host_is_spi(host)) { ++ err = mmc_select_card(card); ++ if (err) ++ goto err; ++ } ++ ++ mmc_set_clock(host, card->cis.max_dtr); ++ err = sdio_enable_wide(card); ++ if (err) ++ goto err; ++ ++ return 0; ++ err: ++ printk("%s: Error resetting SDIO communications (%d)\n", ++ mmc_hostname(host), err); ++ mmc_release_host(host); ++ return err; ++} ++EXPORT_SYMBOL(sdio_reset_comm); ++ ++ diff --git a/target/linux/goldfish/patches-2.6.30/0098-mmc-sd-When-resuming-try-a-little-harder-to-init.patch b/target/linux/goldfish/patches-2.6.30/0098-mmc-sd-When-resuming-try-a-little-harder-to-init.patch new file mode 100644 index 0000000000..4e525b6176 --- /dev/null +++ b/target/linux/goldfish/patches-2.6.30/0098-mmc-sd-When-resuming-try-a-little-harder-to-init.patch @@ -0,0 +1,44 @@ +From bd8df907ee8e95143d1bb7ec01ee0e4b6f7e1b79 Mon Sep 17 00:00:00 2001 +From: San Mehat <san@android.com> +Date: Mon, 1 Dec 2008 08:52:34 -0800 +Subject: [PATCH 098/134] mmc: sd: When resuming, try a little harder to init the card + +Signed-off-by: San Mehat <san@android.com> +--- + drivers/mmc/core/sd.c | 19 +++++++++++++++++++ + 1 files changed, 19 insertions(+), 0 deletions(-) + +--- a/drivers/mmc/core/sd.c ++++ b/drivers/mmc/core/sd.c +@@ -607,12 +607,31 @@ static void mmc_sd_suspend(struct mmc_ho + static void mmc_sd_resume(struct mmc_host *host) + { + int err; ++#ifdef CONFIG_MMC_PARANOID_SD_INIT ++ int retries; ++#endif + + BUG_ON(!host); + BUG_ON(!host->card); + + mmc_claim_host(host); ++#ifdef CONFIG_MMC_PARANOID_SD_INIT ++ retries = 5; ++ while (retries) { ++ err = mmc_sd_init_card(host, host->ocr, host->card); ++ ++ if (err) { ++ printk(KERN_ERR "%s: Re-init card rc = %d (retries = %d)\n", ++ mmc_hostname(host), err, retries); ++ mdelay(5); ++ retries--; ++ continue; ++ } ++ break; ++ } ++#else + err = mmc_sd_init_card(host, host->ocr, host->card); ++#endif + mmc_release_host(host); + + if (err) { diff --git a/target/linux/goldfish/patches-2.6.30/0099-mmc-mmcblk-Add-new-feature-CONFIG_MMC_BLOCK_PARAN.patch b/target/linux/goldfish/patches-2.6.30/0099-mmc-mmcblk-Add-new-feature-CONFIG_MMC_BLOCK_PARAN.patch new file mode 100644 index 0000000000..78e23780ff --- /dev/null +++ b/target/linux/goldfish/patches-2.6.30/0099-mmc-mmcblk-Add-new-feature-CONFIG_MMC_BLOCK_PARAN.patch @@ -0,0 +1,104 @@ +From 5ca694dfd981a371e9b18cdd4a89c002ffaccbc5 Mon Sep 17 00:00:00 2001 +From: San Mehat <san@android.com> +Date: Wed, 3 Dec 2008 10:22:59 -0800 +Subject: [PATCH 099/134] mmc: mmcblk: Add new feature 'CONFIG_MMC_BLOCK_PARANOID_RESUME' + + With this feature enabled, mmcblk will check the card-status before issuing +a transaction *only* after being resumed. This protectes us from issuing +transactions before the sdcard is ready (which can occur if the host driver +deferrs mmc_resume_host() to reduce resume latency) + +Signed-off-by: San Mehat <san@android.com> +--- + drivers/mmc/card/Kconfig | 7 +++++++ + drivers/mmc/card/block.c | 3 +++ + drivers/mmc/card/queue.c | 28 ++++++++++++++++++++++++++++ + drivers/mmc/card/queue.h | 3 +++ + 4 files changed, 41 insertions(+), 0 deletions(-) + +--- a/drivers/mmc/card/Kconfig ++++ b/drivers/mmc/card/Kconfig +@@ -32,6 +32,13 @@ config MMC_BLOCK_BOUNCE + + If unsure, say Y here. + ++config MMC_BLOCK_PARANOID_RESUME ++ bool "Check card status on resume" ++ depends on MMC_BLOCK ++ default y ++ help ++ Nohelp ++ + config SDIO_UART + tristate "SDIO UART/GPS class support" + help +--- a/drivers/mmc/card/block.c ++++ b/drivers/mmc/card/block.c +@@ -643,6 +643,9 @@ static int mmc_blk_resume(struct mmc_car + + if (md) { + mmc_blk_set_blksize(md, card); ++#ifdef CONFIG_MMC_BLOCK_PARANOID_RESUME ++ md->queue.check_status = 1; ++#endif + mmc_queue_resume(&md->queue); + } + return 0; +--- a/drivers/mmc/card/queue.c ++++ b/drivers/mmc/card/queue.c +@@ -14,7 +14,9 @@ + #include <linux/freezer.h> + #include <linux/kthread.h> + #include <linux/scatterlist.h> ++#include <linux/delay.h> + ++#include <linux/mmc/mmc.h> + #include <linux/mmc/card.h> + #include <linux/mmc/host.h> + #include "queue.h" +@@ -70,7 +72,33 @@ static int mmc_queue_thread(void *d) + continue; + } + set_current_state(TASK_RUNNING); ++#ifdef CONFIG_MMC_BLOCK_PARANOID_RESUME ++ if (mq->check_status) { ++ struct mmc_command cmd; + ++ do { ++ int err; ++ ++ cmd.opcode = MMC_SEND_STATUS; ++ cmd.arg = mq->card->rca << 16; ++ cmd.flags = MMC_RSP_R1 | MMC_CMD_AC; ++ ++ mmc_claim_host(mq->card->host); ++ err = mmc_wait_for_cmd(mq->card->host, &cmd, 5); ++ mmc_release_host(mq->card->host); ++ ++ if (err) { ++ printk(KERN_ERR "%s: failed to get status (%d)\n", ++ __func__, err); ++ msleep(5); ++ continue; ++ } ++ printk(KERN_DEBUG "%s: status 0x%.8x\n", __func__, cmd.resp[0]); ++ } while (!(cmd.resp[0] & R1_READY_FOR_DATA) || ++ (R1_CURRENT_STATE(cmd.resp[0]) == 7)); ++ mq->check_status = 0; ++ } ++#endif + mq->issue_fn(mq, req); + } while (1); + up(&mq->thread_sem); +--- a/drivers/mmc/card/queue.h ++++ b/drivers/mmc/card/queue.h +@@ -17,6 +17,9 @@ struct mmc_queue { + char *bounce_buf; + struct scatterlist *bounce_sg; + unsigned int bounce_sg_len; ++#ifdef CONFIG_MMC_BLOCK_PARANOID_RESUME ++ int check_status; ++#endif + }; + + extern int mmc_init_queue(struct mmc_queue *, struct mmc_card *, spinlock_t *); diff --git a/target/linux/goldfish/patches-2.6.30/0100-mmc-sd-Add-retries-in-re-detection.patch b/target/linux/goldfish/patches-2.6.30/0100-mmc-sd-Add-retries-in-re-detection.patch new file mode 100644 index 0000000000..090e9e6913 --- /dev/null +++ b/target/linux/goldfish/patches-2.6.30/0100-mmc-sd-Add-retries-in-re-detection.patch @@ -0,0 +1,91 @@ +From 39e3d37b1f7194277b8a3ea3536a67ec2d24491e Mon Sep 17 00:00:00 2001 +From: San Mehat <san@android.com> +Date: Thu, 4 Dec 2008 11:18:00 -0800 +Subject: [PATCH 100/134] mmc: sd: Add retries in re-detection + +Signed-off-by: San Mehat <san@android.com> +--- + drivers/mmc/core/sd.c | 46 +++++++++++++++++++++++++++++++++++++++++++--- + 1 files changed, 43 insertions(+), 3 deletions(-) + +--- a/drivers/mmc/core/sd.c ++++ b/drivers/mmc/core/sd.c +@@ -558,18 +558,37 @@ static void mmc_sd_remove(struct mmc_hos + */ + static void mmc_sd_detect(struct mmc_host *host) + { +- int err; ++ int err = 0; ++#ifdef CONFIG_MMC_PARANOID_SD_INIT ++ int retries = 5; ++#endif + + BUG_ON(!host); + BUG_ON(!host->card); +- ++ + mmc_claim_host(host); + + /* + * Just check if our card has been removed. + */ ++#ifdef CONFIG_MMC_PARANOID_SD_INIT ++ while(retries) { ++ err = mmc_send_status(host->card, NULL); ++ printk("%s(%s): err = %d\n", __func__, mmc_hostname(host), err); ++ if (err) { ++ retries--; ++ udelay(5); ++ continue; ++ } ++ break; ++ } ++ if (!retries) { ++ printk(KERN_ERR "%s(%s): Unable to re-detect card (%d)\n", ++ __func__, mmc_hostname(host), err); ++ } ++#else + err = mmc_send_status(host->card, NULL); +- ++#endif + mmc_release_host(host); + + if (err) { +@@ -664,6 +683,9 @@ static const struct mmc_bus_ops mmc_sd_o + int mmc_attach_sd(struct mmc_host *host, u32 ocr) + { + int err; ++#ifdef CONFIG_MMC_PARANOID_SD_INIT ++ int retries; ++#endif + + BUG_ON(!host); + WARN_ON(!host->claimed); +@@ -712,9 +734,27 @@ int mmc_attach_sd(struct mmc_host *host, + /* + * Detect and init the card. + */ ++#ifdef CONFIG_MMC_PARANOID_SD_INIT ++ retries = 5; ++ while (retries) { ++ err = mmc_sd_init_card(host, host->ocr, NULL); ++ if (err) { ++ retries--; ++ continue; ++ } ++ break; ++ } ++ ++ if (!retries) { ++ printk(KERN_ERR "%s: mmc_sd_init_card() failure (err = %d)\n", ++ mmc_hostname(host), err); ++ goto err; ++ } ++#else + err = mmc_sd_init_card(host, host->ocr, NULL); + if (err) + goto err; ++#endif + + mmc_release_host(host); + diff --git a/target/linux/goldfish/patches-2.6.30/0101-android_usb-Composite-USB-gadget-driver-for-android.patch b/target/linux/goldfish/patches-2.6.30/0101-android_usb-Composite-USB-gadget-driver-for-android.patch new file mode 100644 index 0000000000..4638449ce1 --- /dev/null +++ b/target/linux/goldfish/patches-2.6.30/0101-android_usb-Composite-USB-gadget-driver-for-android.patch @@ -0,0 +1,4127 @@ +From 03e39e8f663c896dac11e87d96e8cb0292520e36 Mon Sep 17 00:00:00 2001 +From: Mike Lockwood <lockwood@android.com> +Date: Tue, 2 Dec 2008 22:01:33 -0500 +Subject: [PATCH 101/134] android_usb: Composite USB gadget driver for android. + +Signed-off-by: Mike Lockwood <lockwood@android.com> + +USB: android gadget: add remote wakeup attribute to android function + +Add remote wakeup attribute to configuration descriptor of android +function to advertise remote wakeup capability to host + +Acked-by: Allam, Suresh Reddy <sallam@qualcomm.com> + +Signed-off-by: Mike Lockwood <lockwood@android.com> + +usb gadget: link fixes for android composite gadget + +Signed-off-by: Mike Lockwood <lockwood@android.com> + +usb gadget: Fix null pointer errors in android composite driver + +Signed-off-by: Mike Lockwood <lockwood@android.com> +--- + drivers/usb/gadget/Kconfig | 8 + + drivers/usb/gadget/Makefile | 2 + + drivers/usb/gadget/android.c | 345 +++++ + drivers/usb/gadget/f_adb.c | 668 ++++++++ + drivers/usb/gadget/f_adb.h | 25 + + drivers/usb/gadget/f_mass_storage.c | 2906 +++++++++++++++++++++++++++++++++++ + drivers/usb/gadget/f_mass_storage.h | 52 + + include/linux/usb/android.h | 40 + + 8 files changed, 4046 insertions(+), 0 deletions(-) + create mode 100644 drivers/usb/gadget/android.c + create mode 100644 drivers/usb/gadget/f_adb.c + create mode 100644 drivers/usb/gadget/f_adb.h + create mode 100644 drivers/usb/gadget/f_mass_storage.c + create mode 100644 drivers/usb/gadget/f_mass_storage.h + create mode 100644 include/linux/usb/android.h + +--- a/drivers/usb/gadget/Kconfig ++++ b/drivers/usb/gadget/Kconfig +@@ -700,6 +700,14 @@ config USB_G_PRINTER + For more information, see Documentation/usb/gadget_printer.txt + which includes sample code for accessing the device file. + ++config USB_ANDROID ++ tristate "Android Gadget" ++ help ++ The Android gadget provides mass storage and adb transport. ++ ++ Say "y" to link the driver statically, or "m" to build a ++ dynamically linked module called "g_android". ++ + config USB_CDC_COMPOSITE + tristate "CDC Composite Device (Ethernet and ACM)" + depends on NET +--- a/drivers/usb/gadget/Makefile ++++ b/drivers/usb/gadget/Makefile +@@ -33,6 +33,7 @@ gadgetfs-objs := inode.o + g_file_storage-objs := file_storage.o + g_printer-objs := printer.o + g_cdc-objs := cdc2.o ++g_android-objs := android.o f_adb.o f_mass_storage.o + + obj-$(CONFIG_USB_ZERO) += g_zero.o + obj-$(CONFIG_USB_ETH) += g_ether.o +@@ -42,4 +43,5 @@ obj-$(CONFIG_USB_G_SERIAL) += g_serial.o + obj-$(CONFIG_USB_G_PRINTER) += g_printer.o + obj-$(CONFIG_USB_MIDI_GADGET) += g_midi.o + obj-$(CONFIG_USB_CDC_COMPOSITE) += g_cdc.o ++obj-$(CONFIG_USB_ANDROID) += g_android.o + +--- /dev/null ++++ b/drivers/usb/gadget/android.c +@@ -0,0 +1,345 @@ ++/* ++ * Gadget Driver for Android ++ * ++ * Copyright (C) 2008 Google, Inc. ++ * Author: Mike Lockwood <lockwood@android.com> ++ * ++ * This software is licensed under the terms of the GNU General Public ++ * License version 2, as published by the Free Software Foundation, and ++ * may be copied, distributed, and modified under those terms. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ * ++ */ ++ ++/* #define DEBUG */ ++/* #define VERBOSE_DEBUG */ ++ ++#include <linux/init.h> ++#include <linux/module.h> ++#include <linux/fs.h> ++ ++#include <linux/delay.h> ++#include <linux/kernel.h> ++#include <linux/utsname.h> ++#include <linux/miscdevice.h> ++#include <linux/platform_device.h> ++ ++#include <linux/usb/android.h> ++#include <linux/usb/ch9.h> ++#include <linux/usb/composite.h> ++#include <linux/usb/gadget.h> ++ ++#include "f_mass_storage.h" ++#include "f_adb.h" ++ ++#include "gadget_chips.h" ++ ++/* ++ * Kbuild is not very cooperative with respect to linking separately ++ * compiled library objects into one module. So for now we won't use ++ * separate compilation ... ensuring init/exit sections work to shrink ++ * the runtime footprint, and giving us at least some parts of what ++ * a "gcc --combine ... part1.c part2.c part3.c ... " build would. ++ */ ++#include "usbstring.c" ++#include "config.c" ++#include "epautoconf.c" ++#include "composite.c" ++ ++MODULE_AUTHOR("Mike Lockwood"); ++MODULE_DESCRIPTION("Android Composite USB Driver"); ++MODULE_LICENSE("GPL"); ++MODULE_VERSION("1.0"); ++ ++static const char longname[] = "Gadget Android"; ++ ++/* Default vendor and product IDs, overridden by platform data */ ++#define VENDOR_ID 0x18D1 ++#define PRODUCT_ID 0x0001 ++#define ADB_PRODUCT_ID 0x0002 ++ ++struct android_dev { ++ struct usb_gadget *gadget; ++ struct usb_composite_dev *cdev; ++ ++ int product_id; ++ int adb_product_id; ++ int version; ++ ++ int adb_enabled; ++ int nluns; ++}; ++ ++static atomic_t adb_enable_excl; ++static struct android_dev *_android_dev; ++ ++/* string IDs are assigned dynamically */ ++ ++#define STRING_MANUFACTURER_IDX 0 ++#define STRING_PRODUCT_IDX 1 ++#define STRING_SERIAL_IDX 2 ++ ++/* String Table */ ++static struct usb_string strings_dev[] = { ++ /* These dummy values should be overridden by platform data */ ++ [STRING_MANUFACTURER_IDX].s = "Android", ++ [STRING_PRODUCT_IDX].s = "Android", ++ [STRING_SERIAL_IDX].s = "0123456789ABCDEF", ++ { } /* end of list */ ++}; ++ ++static struct usb_gadget_strings stringtab_dev = { ++ .language = 0x0409, /* en-us */ ++ .strings = strings_dev, ++}; ++ ++static struct usb_gadget_strings *dev_strings[] = { ++ &stringtab_dev, ++ NULL, ++}; ++ ++static struct usb_device_descriptor device_desc = { ++ .bLength = sizeof(device_desc), ++ .bDescriptorType = USB_DT_DEVICE, ++ .bcdUSB = __constant_cpu_to_le16(0x0200), ++ .bDeviceClass = USB_CLASS_PER_INTERFACE, ++ .idVendor = __constant_cpu_to_le16(VENDOR_ID), ++ .idProduct = __constant_cpu_to_le16(PRODUCT_ID), ++ .bcdDevice = __constant_cpu_to_le16(0xffff), ++ .bNumConfigurations = 1, ++}; ++ ++static int __init android_bind_config(struct usb_configuration *c) ++{ ++ struct android_dev *dev = _android_dev; ++ int ret; ++ printk(KERN_DEBUG "android_bind_config\n"); ++ ++ ret = mass_storage_function_add(dev->cdev, c, dev->nluns); ++ if (ret) ++ return ret; ++ return adb_function_add(dev->cdev, c); ++} ++ ++static struct usb_configuration android_config_driver = { ++ .label = "android", ++ .bind = android_bind_config, ++ .bConfigurationValue = 1, ++ .bmAttributes = USB_CONFIG_ATT_ONE | USB_CONFIG_ATT_SELFPOWER, ++ .bMaxPower = 0x80, /* 250ma */ ++}; ++ ++static int __init android_bind(struct usb_composite_dev *cdev) ++{ ++ struct android_dev *dev = _android_dev; ++ struct usb_gadget *gadget = cdev->gadget; ++ int gcnum; ++ int id; ++ int ret; ++ ++ printk(KERN_INFO "android_bind\n"); ++ ++ /* Allocate string descriptor numbers ... note that string ++ * contents can be overridden by the composite_dev glue. ++ */ ++ id = usb_string_id(cdev); ++ if (id < 0) ++ return id; ++ strings_dev[STRING_MANUFACTURER_IDX].id = id; ++ device_desc.iManufacturer = id; ++ ++ id = usb_string_id(cdev); ++ if (id < 0) ++ return id; ++ strings_dev[STRING_PRODUCT_IDX].id = id; ++ device_desc.iProduct = id; ++ ++ id = usb_string_id(cdev); ++ if (id < 0) ++ return id; ++ strings_dev[STRING_SERIAL_IDX].id = id; ++ device_desc.iSerialNumber = id; ++ ++ if (gadget->ops->wakeup) ++ android_config_driver.bmAttributes |= USB_CONFIG_ATT_WAKEUP; ++ ++ /* register our configuration */ ++ ret = usb_add_config(cdev, &android_config_driver); ++ if (ret) { ++ printk(KERN_ERR "usb_add_config failed\n"); ++ return ret; ++ } ++ ++ gcnum = usb_gadget_controller_number(gadget); ++ if (gcnum >= 0) ++ device_desc.bcdDevice = cpu_to_le16(0x0200 + gcnum); ++ else { ++ /* gadget zero is so simple (for now, no altsettings) that ++ * it SHOULD NOT have problems with bulk-capable hardware. ++ * so just warn about unrcognized controllers -- don't panic. ++ * ++ * things like configuration and altsetting numbering ++ * can need hardware-specific attention though. ++ */ ++ pr_warning("%s: controller '%s' not recognized\n", ++ longname, gadget->name); ++ device_desc.bcdDevice = __constant_cpu_to_le16(0x9999); ++ } ++ ++ usb_gadget_set_selfpowered(gadget); ++ dev->cdev = cdev; ++ ++ return 0; ++} ++ ++static struct usb_composite_driver android_usb_driver = { ++ .name = "android_usb", ++ .dev = &device_desc, ++ .strings = dev_strings, ++ .bind = android_bind, ++}; ++ ++static void enable_adb(struct android_dev *dev, int enable) ++{ ++ if (enable != dev->adb_enabled) { ++ dev->adb_enabled = enable; ++ adb_function_enable(enable); ++ ++ /* set product ID to the appropriate value */ ++ if (enable) ++ device_desc.idProduct = ++ __constant_cpu_to_le16(dev->adb_product_id); ++ else ++ device_desc.idProduct = ++ __constant_cpu_to_le16(dev->product_id); ++ if (dev->cdev) ++ dev->cdev->desc.idProduct = device_desc.idProduct; ++ ++ /* force reenumeration */ ++ if (dev->cdev && dev->cdev->gadget && ++ dev->cdev->gadget->speed != USB_SPEED_UNKNOWN) { ++ usb_gadget_disconnect(dev->cdev->gadget); ++ msleep(10); ++ usb_gadget_connect(dev->cdev->gadget); ++ } ++ } ++} ++ ++static int adb_enable_open(struct inode *ip, struct file *fp) ++{ ++ if (atomic_inc_return(&adb_enable_excl) != 1) { ++ atomic_dec(&adb_enable_excl); ++ return -EBUSY; ++ } ++ ++ printk(KERN_INFO "enabling adb\n"); ++ enable_adb(_android_dev, 1); ++ ++ return 0; ++} ++ ++static int adb_enable_release(struct inode *ip, struct file *fp) ++{ ++ printk(KERN_INFO "disabling adb\n"); ++ enable_adb(_android_dev, 0); ++ atomic_dec(&adb_enable_excl); ++ return 0; ++} ++ ++static struct file_operations adb_enable_fops = { ++ .owner = THIS_MODULE, ++ .open = adb_enable_open, ++ .release = adb_enable_release, ++}; ++ ++static struct miscdevice adb_enable_device = { ++ .minor = MISC_DYNAMIC_MINOR, ++ .name = "android_adb_enable", ++ .fops = &adb_enable_fops, ++}; ++ ++static int __init android_probe(struct platform_device *pdev) ++{ ++ struct android_usb_platform_data *pdata = pdev->dev.platform_data; ++ struct android_dev *dev = _android_dev; ++ ++ printk(KERN_INFO "android_probe pdata: %p\n", pdata); ++ ++ if (pdata) { ++ if (pdata->vendor_id) ++ device_desc.idVendor = ++ __constant_cpu_to_le16(pdata->vendor_id); ++ if (pdata->product_id) { ++ dev->product_id = pdata->product_id; ++ device_desc.idProduct = ++ __constant_cpu_to_le16(pdata->product_id); ++ } ++ if (pdata->adb_product_id) ++ dev->adb_product_id = pdata->adb_product_id; ++ if (pdata->version) ++ dev->version = pdata->version; ++ ++ if (pdata->product_name) ++ strings_dev[STRING_PRODUCT_IDX].s = pdata->product_name; ++ if (pdata->manufacturer_name) ++ strings_dev[STRING_MANUFACTURER_IDX].s = ++ pdata->manufacturer_name; ++ if (pdata->serial_number) ++ strings_dev[STRING_SERIAL_IDX].s = pdata->serial_number; ++ dev->nluns = pdata->nluns; ++ } ++ ++ return 0; ++} ++ ++static struct platform_driver android_platform_driver = { ++ .driver = { .name = "android_usb", }, ++ .probe = android_probe, ++}; ++ ++static int __init init(void) ++{ ++ struct android_dev *dev; ++ int ret; ++ ++ printk(KERN_INFO "android init\n"); ++ ++ dev = kzalloc(sizeof(*dev), GFP_KERNEL); ++ if (!dev) ++ return -ENOMEM; ++ ++ /* set default values, which should be overridden by platform data */ ++ dev->product_id = PRODUCT_ID; ++ dev->adb_product_id = ADB_PRODUCT_ID; ++ _android_dev = dev; ++ ++ ret = platform_driver_register(&android_platform_driver); ++ if (ret) ++ return ret; ++ ret = misc_register(&adb_enable_device); ++ if (ret) { ++ platform_driver_unregister(&android_platform_driver); ++ return ret; ++ } ++ ret = usb_composite_register(&android_usb_driver); ++ if (ret) { ++ misc_deregister(&adb_enable_device); ++ platform_driver_unregister(&android_platform_driver); ++ } ++ return ret; ++} ++module_init(init); ++ ++static void __exit cleanup(void) ++{ ++ usb_composite_unregister(&android_usb_driver); ++ misc_deregister(&adb_enable_device); ++ platform_driver_unregister(&android_platform_driver); ++ kfree(_android_dev); ++ _android_dev = NULL; ++} ++module_exit(cleanup); +--- /dev/null ++++ b/drivers/usb/gadget/f_adb.c +@@ -0,0 +1,668 @@ ++/* ++ * Gadget Driver for Android ADB ++ * ++ * Copyright (C) 2008 Google, Inc. ++ * Author: Mike Lockwood <lockwood@android.com> ++ * ++ * This software is licensed under the terms of the GNU General Public ++ * License version 2, as published by the Free Software Foundation, and ++ * may be copied, distributed, and modified under those terms. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ * ++ */ ++ ++/* #define DEBUG */ ++/* #define VERBOSE_DEBUG */ ++ ++#include <linux/module.h> ++#include <linux/init.h> ++#include <linux/poll.h> ++#include <linux/delay.h> ++#include <linux/wait.h> ++#include <linux/err.h> ++#include <linux/interrupt.h> ++ ++#include <linux/types.h> ++#include <linux/device.h> ++#include <linux/miscdevice.h> ++ ++#include <linux/usb/ch9.h> ++#include <linux/usb/composite.h> ++#include <linux/usb/gadget.h> ++ ++#include "f_adb.h" ++ ++#define BULK_BUFFER_SIZE 4096 ++ ++/* number of rx and tx requests to allocate */ ++#define RX_REQ_MAX 4 ++#define TX_REQ_MAX 4 ++ ++static const char shortname[] = "android_adb"; ++ ++struct adb_dev { ++ struct usb_function function; ++ struct usb_composite_dev *cdev; ++ spinlock_t lock; ++ ++ struct usb_ep *ep_in; ++ struct usb_ep *ep_out; ++ ++ int online; ++ int error; ++ ++ atomic_t read_excl; ++ atomic_t write_excl; ++ atomic_t open_excl; ++ ++ struct list_head tx_idle; ++ struct list_head rx_idle; ++ struct list_head rx_done; ++ ++ wait_queue_head_t read_wq; ++ wait_queue_head_t write_wq; ++ ++ /* the request we're currently reading from */ ++ struct usb_request *read_req; ++ unsigned char *read_buf; ++ unsigned read_count; ++}; ++ ++static struct usb_interface_descriptor adb_interface_desc = { ++ .bLength = USB_DT_INTERFACE_SIZE, ++ .bDescriptorType = USB_DT_INTERFACE, ++ .bInterfaceNumber = 0, ++ .bNumEndpoints = 2, ++ .bInterfaceClass = 0xFF, ++ .bInterfaceSubClass = 0x42, ++ .bInterfaceProtocol = 1, ++}; ++ ++static struct usb_endpoint_descriptor adb_highspeed_in_desc = { ++ .bLength = USB_DT_ENDPOINT_SIZE, ++ .bDescriptorType = USB_DT_ENDPOINT, ++ .bEndpointAddress = USB_DIR_IN, ++ .bmAttributes = USB_ENDPOINT_XFER_BULK, ++ .wMaxPacketSize = __constant_cpu_to_le16(512), ++}; ++ ++static struct usb_endpoint_descriptor adb_highspeed_out_desc = { ++ .bLength = USB_DT_ENDPOINT_SIZE, ++ .bDescriptorType = USB_DT_ENDPOINT, ++ .bEndpointAddress = USB_DIR_OUT, ++ .bmAttributes = USB_ENDPOINT_XFER_BULK, ++ .wMaxPacketSize = __constant_cpu_to_le16(512), ++}; ++ ++static struct usb_endpoint_descriptor adb_fullspeed_in_desc = { ++ .bLength = USB_DT_ENDPOINT_SIZE, ++ .bDescriptorType = USB_DT_ENDPOINT, ++ .bEndpointAddress = USB_DIR_IN, ++ .bmAttributes = USB_ENDPOINT_XFER_BULK, ++}; ++ ++static struct usb_endpoint_descriptor adb_fullspeed_out_desc = { ++ .bLength = USB_DT_ENDPOINT_SIZE, ++ .bDescriptorType = USB_DT_ENDPOINT, ++ .bEndpointAddress = USB_DIR_OUT, ++ .bmAttributes = USB_ENDPOINT_XFER_BULK, ++}; ++ ++static struct usb_descriptor_header *fs_adb_descs[] = { ++ (struct usb_descriptor_header *) &adb_interface_desc, ++ (struct usb_descriptor_header *) &adb_fullspeed_in_desc, ++ (struct usb_descriptor_header *) &adb_fullspeed_out_desc, ++ NULL, ++}; ++ ++static struct usb_descriptor_header *hs_adb_descs[] = { ++ (struct usb_descriptor_header *) &adb_interface_desc, ++ (struct usb_descriptor_header *) &adb_highspeed_in_desc, ++ (struct usb_descriptor_header *) &adb_highspeed_out_desc, ++ NULL, ++}; ++ ++/* used when adb function is disabled */ ++static struct usb_descriptor_header *null_adb_descs[] = { ++ NULL, ++}; ++ ++ ++/* temporary variable used between adb_open() and adb_gadget_bind() */ ++static struct adb_dev *_adb_dev; ++ ++static inline struct adb_dev *func_to_dev(struct usb_function *f) ++{ ++ return container_of(f, struct adb_dev, function); ++} ++ ++ ++static struct usb_request *adb_request_new(struct usb_ep *ep, int buffer_size) ++{ ++ struct usb_request *req = usb_ep_alloc_request(ep, GFP_KERNEL); ++ if (!req) ++ return NULL; ++ ++ /* now allocate buffers for the requests */ ++ req->buf = kmalloc(buffer_size, GFP_KERNEL); ++ if (!req->buf) { ++ usb_ep_free_request(ep, req); ++ return NULL; ++ } ++ ++ return req; ++} ++ ++static void adb_request_free(struct usb_request *req, struct usb_ep *ep) ++{ ++ if (req) { ++ kfree(req->buf); ++ usb_ep_free_request(ep, req); ++ } ++} ++ ++static inline int _lock(atomic_t *excl) ++{ ++ if (atomic_inc_return(excl) == 1) { ++ return 0; ++ } else { ++ atomic_dec(excl); ++ return -1; ++ } ++} ++ ++static inline void _unlock(atomic_t *excl) ++{ ++ atomic_dec(excl); ++} ++ ++/* add a request to the tail of a list */ ++void req_put(struct adb_dev *dev, struct list_head *head, ++ struct usb_request *req) ++{ ++ unsigned long flags; ++ ++ spin_lock_irqsave(&dev->lock, flags); ++ list_add_tail(&req->list, head); ++ spin_unlock_irqrestore(&dev->lock, flags); ++} ++ ++/* remove a request from the head of a list */ ++struct usb_request *req_get(struct adb_dev *dev, struct list_head *head) ++{ ++ unsigned long flags; ++ struct usb_request *req; ++ ++ spin_lock_irqsave(&dev->lock, flags); ++ if (list_empty(head)) { ++ req = 0; ++ } else { ++ req = list_first_entry(head, struct usb_request, list); ++ list_del(&req->list); ++ } ++ spin_unlock_irqrestore(&dev->lock, flags); ++ return req; ++} ++ ++static void adb_complete_in(struct usb_ep *ep, struct usb_request *req) ++{ ++ struct adb_dev *dev = _adb_dev; ++ ++ if (req->status != 0) ++ dev->error = 1; ++ ++ req_put(dev, &dev->tx_idle, req); ++ ++ wake_up(&dev->write_wq); ++} ++ ++static void adb_complete_out(struct usb_ep *ep, struct usb_request *req) ++{ ++ struct adb_dev *dev = _adb_dev; ++ ++ if (req->status != 0) { ++ dev->error = 1; ++ req_put(dev, &dev->rx_idle, req); ++ } else { ++ req_put(dev, &dev->rx_done, req); ++ } ++ ++ wake_up(&dev->read_wq); ++} ++ ++static int __init create_bulk_endpoints(struct adb_dev *dev, ++ struct usb_endpoint_descriptor *in_desc, ++ struct usb_endpoint_descriptor *out_desc) ++{ ++ struct usb_composite_dev *cdev = dev->cdev; ++ struct usb_request *req; ++ struct usb_ep *ep; ++ int i; ++ ++ DBG(cdev, "create_bulk_endpoints dev: %p\n", dev); ++ ++ ep = usb_ep_autoconfig(cdev->gadget, in_desc); ++ if (!ep) { ++ DBG(cdev, "usb_ep_autoconfig for ep_in failed\n"); ++ return -ENODEV; ++ } ++ DBG(cdev, "usb_ep_autoconfig for ep_in got %s\n", ep->name); ++ dev->ep_in = ep; ++ ++ ep = usb_ep_autoconfig(cdev->gadget, out_desc); ++ if (!ep) { ++ DBG(cdev, "usb_ep_autoconfig for ep_out failed\n"); ++ return -ENODEV; ++ } ++ DBG(cdev, "usb_ep_autoconfig for adb ep_out got %s\n", ep->name); ++ dev->ep_out = ep; ++ ++ /* now allocate requests for our endpoints */ ++ for (i = 0; i < RX_REQ_MAX; i++) { ++ req = adb_request_new(dev->ep_out, BULK_BUFFER_SIZE); ++ if (!req) ++ goto fail; ++ req->complete = adb_complete_out; ++ req_put(dev, &dev->rx_idle, req); ++ } ++ ++ for (i = 0; i < TX_REQ_MAX; i++) { ++ req = adb_request_new(dev->ep_in, BULK_BUFFER_SIZE); ++ if (!req) ++ goto fail; ++ req->complete = adb_complete_in; ++ req_put(dev, &dev->tx_idle, req); ++ } ++ ++ return 0; ++ ++fail: ++ printk(KERN_ERR "adb_bind() could not allocate requests\n"); ++ return -1; ++} ++ ++static ssize_t adb_read(struct file *fp, char __user *buf, ++ size_t count, loff_t *pos) ++{ ++ struct adb_dev *dev = fp->private_data; ++ struct usb_composite_dev *cdev = dev->cdev; ++ struct usb_request *req; ++ int r = count, xfer; ++ int ret; ++ ++ DBG(cdev, "adb_read(%d)\n", count); ++ ++ if (_lock(&dev->read_excl)) ++ return -EBUSY; ++ ++ /* we will block until we're online */ ++ while (!(dev->online || dev->error)) { ++ DBG(cdev, "adb_read: waiting for online state\n"); ++ ret = wait_event_interruptible(dev->read_wq, ++ (dev->online || dev->error)); ++ if (ret < 0) { ++ _unlock(&dev->read_excl); ++ return ret; ++ } ++ } ++ ++ while (count > 0) { ++ if (dev->error) { ++ DBG(cdev, "adb_read dev->error\n"); ++ r = -EIO; ++ break; ++ } ++ ++ /* if we have idle read requests, get them queued */ ++ while ((req = req_get(dev, &dev->rx_idle))) { ++requeue_req: ++ req->length = BULK_BUFFER_SIZE; ++ ret = usb_ep_queue(dev->ep_out, req, GFP_ATOMIC); ++ ++ if (ret < 0) { ++ r = -EIO; ++ dev->error = 1; ++ req_put(dev, &dev->rx_idle, req); ++ goto fail; ++ } else { ++ DBG(cdev, "rx %p queue\n", req); ++ } ++ } ++ ++ /* if we have data pending, give it to userspace */ ++ if (dev->read_count > 0) { ++ if (dev->read_count < count) ++ xfer = dev->read_count; ++ else ++ xfer = count; ++ ++ if (copy_to_user(buf, dev->read_buf, xfer)) { ++ r = -EFAULT; ++ break; ++ } ++ dev->read_buf += xfer; ++ dev->read_count -= xfer; ++ buf += xfer; ++ count -= xfer; ++ ++ /* if we've emptied the buffer, release the request */ ++ if (dev->read_count == 0) { ++ req_put(dev, &dev->rx_idle, dev->read_req); ++ dev->read_req = 0; ++ } ++ continue; ++ } ++ ++ /* wait for a request to complete */ ++ req = 0; ++ ret = wait_event_interruptible(dev->read_wq, ++ ((req = req_get(dev, &dev->rx_done)) || dev->error)); ++ if (req != 0) { ++ /* if we got a 0-len one we need to put it back into ++ ** service. if we made it the current read req we'd ++ ** be stuck forever ++ */ ++ if (req->actual == 0) ++ goto requeue_req; ++ ++ dev->read_req = req; ++ dev->read_count = req->actual; ++ dev->read_buf = req->buf; ++ DBG(cdev, "rx %p %d\n", req, req->actual); ++ } ++ ++ if (ret < 0) { ++ r = ret; ++ break; ++ } ++ } ++ ++fail: ++ _unlock(&dev->read_excl); ++ DBG(cdev, "adb_read returning %d\n", r); ++ return r; ++} ++ ++static ssize_t adb_write(struct file *fp, const char __user *buf, ++ size_t count, loff_t *pos) ++{ ++ struct adb_dev *dev = fp->private_data; ++ struct usb_composite_dev *cdev = dev->cdev; ++ struct usb_request *req = 0; ++ int r = count, xfer; ++ int ret; ++ ++ DBG(cdev, "adb_write(%d)\n", count); ++ ++ if (_lock(&dev->write_excl)) ++ return -EBUSY; ++ ++ while (count > 0) { ++ if (dev->error) { ++ DBG(cdev, "adb_write dev->error\n"); ++ r = -EIO; ++ break; ++ } ++ ++ /* get an idle tx request to use */ ++ req = 0; ++ ret = wait_event_interruptible(dev->write_wq, ++ ((req = req_get(dev, &dev->tx_idle)) || dev->error)); ++ ++ if (ret < 0) { ++ r = ret; ++ break; ++ } ++ ++ if (req != 0) { ++ if (count > BULK_BUFFER_SIZE) ++ xfer = BULK_BUFFER_SIZE; ++ else ++ xfer = count; ++ if (copy_from_user(req->buf, buf, xfer)) { ++ r = -EFAULT; ++ break; ++ } ++ ++ req->length = xfer; ++ ret = usb_ep_queue(dev->ep_in, req, GFP_ATOMIC); ++ if (ret < 0) { ++ DBG(cdev, "adb_write: xfer error %d\n", ret); ++ dev->error = 1; ++ r = -EIO; ++ break; ++ } ++ ++ buf += xfer; ++ count -= xfer; ++ ++ /* zero this so we don't try to free it on error exit */ ++ req = 0; ++ } ++ } ++ ++ if (req) ++ req_put(dev, &dev->tx_idle, req); ++ ++ _unlock(&dev->write_excl); ++ DBG(cdev, "adb_write returning %d\n", r); ++ return r; ++} ++ ++static int adb_open(struct inode *ip, struct file *fp) ++{ ++ printk(KERN_INFO "adb_open\n"); ++ if (_lock(&_adb_dev->open_excl)) ++ return -EBUSY; ++ ++ fp->private_data = _adb_dev; ++ ++ /* clear the error latch */ ++ _adb_dev->error = 0; ++ ++ return 0; ++} ++ ++static int adb_release(struct inode *ip, struct file *fp) ++{ ++ printk(KERN_INFO "adb_release\n"); ++ _unlock(&_adb_dev->open_excl); ++ return 0; ++} ++ ++/* file operations for ADB device /dev/android_adb */ ++static struct file_operations adb_fops = { ++ .owner = THIS_MODULE, ++ .read = adb_read, ++ .write = adb_write, ++ .open = adb_open, ++ .release = adb_release, ++}; ++ ++static struct miscdevice adb_device = { ++ .minor = MISC_DYNAMIC_MINOR, ++ .name = shortname, ++ .fops = &adb_fops, ++}; ++ ++static int __init ++adb_function_bind(struct usb_configuration *c, struct usb_function *f) ++{ ++ struct usb_composite_dev *cdev = c->cdev; ++ struct adb_dev *dev = func_to_dev(f); ++ int id; ++ int ret; ++ ++ dev->cdev = cdev; ++ DBG(cdev, "adb_function_bind dev: %p\n", dev); ++ ++ /* allocate interface ID(s) */ ++ id = usb_interface_id(c, f); ++ if (id < 0) ++ return id; ++ adb_interface_desc.bInterfaceNumber = id; ++ ++ /* allocate endpoints */ ++ ret = create_bulk_endpoints(dev, &adb_fullspeed_in_desc, ++ &adb_fullspeed_out_desc); ++ if (ret) ++ return ret; ++ ++ /* support high speed hardware */ ++ if (gadget_is_dualspeed(c->cdev->gadget)) { ++ adb_highspeed_in_desc.bEndpointAddress = ++ adb_fullspeed_in_desc.bEndpointAddress; ++ adb_highspeed_out_desc.bEndpointAddress = ++ adb_fullspeed_out_desc.bEndpointAddress; ++ } ++ ++ DBG(cdev, "%s speed %s: IN/%s, OUT/%s\n", ++ gadget_is_dualspeed(c->cdev->gadget) ? "dual" : "full", ++ f->name, dev->ep_in->name, dev->ep_out->name); ++ return 0; ++} ++ ++static void ++adb_function_unbind(struct usb_configuration *c, struct usb_function *f) ++{ ++ struct adb_dev *dev = func_to_dev(f); ++ struct usb_request *req; ++ ++ spin_lock_irq(&dev->lock); ++ ++ while ((req = req_get(dev, &dev->rx_idle))) ++ adb_request_free(req, dev->ep_out); ++ while ((req = req_get(dev, &dev->tx_idle))) ++ adb_request_free(req, dev->ep_in); ++ ++ dev->online = 0; ++ dev->error = 1; ++ spin_unlock_irq(&dev->lock); ++ ++ misc_deregister(&adb_device); ++ kfree(_adb_dev); ++ _adb_dev = NULL; ++} ++ ++static int adb_function_set_alt(struct usb_function *f, ++ unsigned intf, unsigned alt) ++{ ++ struct adb_dev *dev = func_to_dev(f); ++ struct usb_composite_dev *cdev = f->config->cdev; ++ int ret; ++ ++ DBG(cdev, "adb_function_set_alt intf: %d alt: %d\n", intf, alt); ++ ret = usb_ep_enable(dev->ep_in, ++ ep_choose(cdev->gadget, ++ &adb_highspeed_in_desc, ++ &adb_fullspeed_in_desc)); ++ if (ret) ++ return ret; ++ ret = usb_ep_enable(dev->ep_out, ++ ep_choose(cdev->gadget, ++ &adb_highspeed_out_desc, ++ &adb_fullspeed_out_desc)); ++ if (ret) { ++ usb_ep_disable(dev->ep_in); ++ return ret; ++ } ++ dev->online = 1; ++ ++ /* readers may be blocked waiting for us to go online */ ++ wake_up(&dev->read_wq); ++ return 0; ++} ++ ++static void adb_function_disable(struct usb_function *f) ++{ ++ struct adb_dev *dev = func_to_dev(f); ++ struct usb_composite_dev *cdev = dev->cdev; ++ ++ DBG(cdev, "adb_function_disable\n"); ++ dev->online = 0; ++ dev->error = 1; ++ usb_ep_disable(dev->ep_in); ++ usb_ep_disable(dev->ep_out); ++ ++ /* readers may be blocked waiting for us to go online */ ++ wake_up(&dev->read_wq); ++ ++ VDBG(cdev, "%s disabled\n", dev->function.name); ++} ++ ++int __init adb_function_add(struct usb_composite_dev *cdev, ++ struct usb_configuration *c) ++{ ++ struct adb_dev *dev; ++ int ret; ++ ++ printk(KERN_INFO "adb_function_add\n"); ++ ++ dev = kzalloc(sizeof(*dev), GFP_KERNEL); ++ if (!dev) ++ return -ENOMEM; ++ ++ spin_lock_init(&dev->lock); ++ ++ init_waitqueue_head(&dev->read_wq); ++ init_waitqueue_head(&dev->write_wq); ++ ++ atomic_set(&dev->open_excl, 0); ++ atomic_set(&dev->read_excl, 0); ++ atomic_set(&dev->write_excl, 0); ++ ++ INIT_LIST_HEAD(&dev->rx_idle); ++ INIT_LIST_HEAD(&dev->rx_done); ++ INIT_LIST_HEAD(&dev->tx_idle); ++ ++ dev->cdev = cdev; ++ dev->function.name = "adb"; ++ dev->function.descriptors = null_adb_descs; ++ dev->function.hs_descriptors = null_adb_descs; ++ dev->function.bind = adb_function_bind; ++ dev->function.unbind = adb_function_unbind; ++ dev->function.set_alt = adb_function_set_alt; ++ dev->function.disable = adb_function_disable; ++ ++ /* _adb_dev must be set before calling usb_gadget_register_driver */ ++ _adb_dev = dev; ++ ++ ret = misc_register(&adb_device); ++ if (ret) ++ goto err1; ++ ret = usb_add_function(c, &dev->function); ++ if (ret) ++ goto err2; ++ ++ return 0; ++ ++err2: ++ misc_deregister(&adb_device); ++err1: ++ kfree(dev); ++ printk(KERN_ERR "adb gadget driver failed to initialize\n"); ++ return ret; ++} ++ ++void adb_function_enable(int enable) ++{ ++ struct adb_dev *dev = _adb_dev; ++ ++ if (dev) { ++ DBG(dev->cdev, "adb_function_enable(%s)\n", ++ enable ? "true" : "false"); ++ ++ if (enable) { ++ dev->function.descriptors = fs_adb_descs; ++ dev->function.hs_descriptors = hs_adb_descs; ++ } else { ++ dev->function.descriptors = null_adb_descs; ++ dev->function.hs_descriptors = null_adb_descs; ++ } ++ } ++} ++ +--- /dev/null ++++ b/drivers/usb/gadget/f_adb.h +@@ -0,0 +1,25 @@ ++/* ++ * Gadget Driver for Android ADB ++ * ++ * Copyright (C) 2008 Google, Inc. ++ * Author: Mike Lockwood <lockwood@android.com> ++ * ++ * This software is licensed under the terms of the GNU General Public ++ * License version 2, as published by the Free Software Foundation, and ++ * may be copied, distributed, and modified under those terms. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ * ++ */ ++ ++#ifndef __F_ADB_H ++#define __F_ADB_H ++ ++int adb_function_add(struct usb_composite_dev *cdev, ++ struct usb_configuration *c); ++void adb_function_enable(int enable); ++ ++#endif /* __F_ADB_H */ +--- /dev/null ++++ b/drivers/usb/gadget/f_mass_storage.c +@@ -0,0 +1,2906 @@ ++/* ++ * drivers/usb/gadget/f_mass_storage.c ++ * ++ * Function Driver for USB Mass Storage ++ * ++ * Copyright (C) 2008 Google, Inc. ++ * Author: Mike Lockwood <lockwood@android.com> ++ * ++ * Based heavily on the file_storage gadget driver in ++ * drivers/usb/gadget/file_storage.c and licensed under the same terms: ++ * ++ * Copyright (C) 2003-2007 Alan Stern ++ * All rights reserved. ++ * ++ * Redistribution and use in source and binary forms, with or without ++ * modification, are permitted provided that the following conditions ++ * are met: ++ * 1. Redistributions of source code must retain the above copyright ++ * notice, this list of conditions, and the following disclaimer, ++ * without modification. ++ * 2. Redistributions in binary form must reproduce the above copyright ++ * notice, this list of conditions and the following disclaimer in the ++ * documentation and/or other materials provided with the distribution. ++ * 3. The names of the above-listed copyright holders may not be used ++ * to endorse or promote products derived from this software without ++ * specific prior written permission. ++ * ++ * ALTERNATIVELY, this software may be distributed under the terms of the ++ * GNU General Public License ("GPL") as published by the Free Software ++ * Foundation, either version 2 of that License or (at your option) any ++ * later version. ++ * ++ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS ++ * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, ++ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR ++ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR ++ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, ++ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, ++ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR ++ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF ++ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING ++ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS ++ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ++ */ ++ ++/* #define DEBUG */ ++/* #define VERBOSE_DEBUG */ ++/* #define DUMP_MSGS */ ++ ++ ++#include <linux/blkdev.h> ++#include <linux/completion.h> ++#include <linux/dcache.h> ++#include <linux/delay.h> ++#include <linux/device.h> ++#include <linux/fcntl.h> ++#include <linux/file.h> ++#include <linux/fs.h> ++#include <linux/kref.h> ++#include <linux/kthread.h> ++#include <linux/limits.h> ++#include <linux/rwsem.h> ++#include <linux/slab.h> ++#include <linux/spinlock.h> ++#include <linux/string.h> ++#include <linux/switch.h> ++#include <linux/freezer.h> ++#include <linux/utsname.h> ++#include <linux/wakelock.h> ++ ++#include <linux/usb_usual.h> ++#include <linux/usb/ch9.h> ++#include <linux/usb/composite.h> ++#include <linux/usb/gadget.h> ++ ++#include "f_mass_storage.h" ++#include "gadget_chips.h" ++ ++ ++#define BULK_BUFFER_SIZE 4096 ++ ++/*-------------------------------------------------------------------------*/ ++ ++#define DRIVER_NAME "usb_mass_storage" ++#define MAX_LUNS 8 ++ ++static const char shortname[] = DRIVER_NAME; ++ ++#ifdef DEBUG ++#define LDBG(lun, fmt, args...) \ ++ dev_dbg(&(lun)->dev , fmt , ## args) ++#define MDBG(fmt,args...) \ ++ printk(KERN_DEBUG DRIVER_NAME ": " fmt , ## args) ++#else ++#define LDBG(lun, fmt, args...) \ ++ do { } while (0) ++#define MDBG(fmt,args...) \ ++ do { } while (0) ++#undef VERBOSE_DEBUG ++#undef DUMP_MSGS ++#endif /* DEBUG */ ++ ++#ifdef VERBOSE_DEBUG ++#define VLDBG LDBG ++#else ++#define VLDBG(lun, fmt, args...) \ ++ do { } while (0) ++#endif /* VERBOSE_DEBUG */ ++ ++#define LERROR(lun, fmt, args...) \ ++ dev_err(&(lun)->dev , fmt , ## args) ++#define LWARN(lun, fmt, args...) \ ++ dev_warn(&(lun)->dev , fmt , ## args) ++#define LINFO(lun, fmt, args...) \ ++ dev_info(&(lun)->dev , fmt , ## args) ++ ++#define MINFO(fmt,args...) \ ++ printk(KERN_INFO DRIVER_NAME ": " fmt , ## args) ++ ++#undef DBG ++#undef VDBG ++#undef ERROR ++#undef WARNING ++#undef INFO ++#define DBG(d, fmt, args...) \ ++ dev_dbg(&(d)->cdev->gadget->dev , fmt , ## args) ++#define VDBG(d, fmt, args...) \ ++ dev_vdbg(&(d)->cdev->gadget->dev , fmt , ## args) ++#define ERROR(d, fmt, args...) \ ++ dev_err(&(d)->cdev->gadget->dev , fmt , ## args) ++#define WARNING(d, fmt, args...) \ ++ dev_warn(&(d)->cdev->gadget->dev , fmt , ## args) ++#define INFO(d, fmt, args...) \ ++ dev_info(&(d)->cdev->gadget->dev , fmt , ## args) ++ ++ ++/*-------------------------------------------------------------------------*/ ++ ++/* Bulk-only data structures */ ++ ++/* Command Block Wrapper */ ++struct bulk_cb_wrap { ++ __le32 Signature; /* Contains 'USBC' */ ++ u32 Tag; /* Unique per command id */ ++ __le32 DataTransferLength; /* Size of the data */ ++ u8 Flags; /* Direction in bit 7 */ ++ u8 Lun; /* LUN (normally 0) */ ++ u8 Length; /* Of the CDB, <= MAX_COMMAND_SIZE */ ++ u8 CDB[16]; /* Command Data Block */ ++}; ++ ++#define USB_BULK_CB_WRAP_LEN 31 ++#define USB_BULK_CB_SIG 0x43425355 /* Spells out USBC */ ++#define USB_BULK_IN_FLAG 0x80 ++ ++/* Command Status Wrapper */ ++struct bulk_cs_wrap { ++ __le32 Signature; /* Should = 'USBS' */ ++ u32 Tag; /* Same as original command */ ++ __le32 Residue; /* Amount not transferred */ ++ u8 Status; /* See below */ ++}; ++ ++#define USB_BULK_CS_WRAP_LEN 13 ++#define USB_BULK_CS_SIG 0x53425355 /* Spells out 'USBS' */ ++#define USB_STATUS_PASS 0 ++#define USB_STATUS_FAIL 1 ++#define USB_STATUS_PHASE_ERROR 2 ++ ++/* Bulk-only class specific requests */ ++#define USB_BULK_RESET_REQUEST 0xff ++#define USB_BULK_GET_MAX_LUN_REQUEST 0xfe ++ ++/* Length of a SCSI Command Data Block */ ++#define MAX_COMMAND_SIZE 16 ++ ++/* SCSI commands that we recognize */ ++#define SC_FORMAT_UNIT 0x04 ++#define SC_INQUIRY 0x12 ++#define SC_MODE_SELECT_6 0x15 ++#define SC_MODE_SELECT_10 0x55 ++#define SC_MODE_SENSE_6 0x1a ++#define SC_MODE_SENSE_10 0x5a ++#define SC_PREVENT_ALLOW_MEDIUM_REMOVAL 0x1e ++#define SC_READ_6 0x08 ++#define SC_READ_10 0x28 ++#define SC_READ_12 0xa8 ++#define SC_READ_CAPACITY 0x25 ++#define SC_READ_FORMAT_CAPACITIES 0x23 ++#define SC_RELEASE 0x17 ++#define SC_REQUEST_SENSE 0x03 ++#define SC_RESERVE 0x16 ++#define SC_SEND_DIAGNOSTIC 0x1d ++#define SC_START_STOP_UNIT 0x1b ++#define SC_SYNCHRONIZE_CACHE 0x35 ++#define SC_TEST_UNIT_READY 0x00 ++#define SC_VERIFY 0x2f ++#define SC_WRITE_6 0x0a ++#define SC_WRITE_10 0x2a ++#define SC_WRITE_12 0xaa ++ ++/* SCSI Sense Key/Additional Sense Code/ASC Qualifier values */ ++#define SS_NO_SENSE 0 ++#define SS_COMMUNICATION_FAILURE 0x040800 ++#define SS_INVALID_COMMAND 0x052000 ++#define SS_INVALID_FIELD_IN_CDB 0x052400 ++#define SS_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE 0x052100 ++#define SS_LOGICAL_UNIT_NOT_SUPPORTED 0x052500 ++#define SS_MEDIUM_NOT_PRESENT 0x023a00 ++#define SS_MEDIUM_REMOVAL_PREVENTED 0x055302 ++#define SS_NOT_READY_TO_READY_TRANSITION 0x062800 ++#define SS_RESET_OCCURRED 0x062900 ++#define SS_SAVING_PARAMETERS_NOT_SUPPORTED 0x053900 ++#define SS_UNRECOVERED_READ_ERROR 0x031100 ++#define SS_WRITE_ERROR 0x030c02 ++#define SS_WRITE_PROTECTED 0x072700 ++ ++#define SK(x) ((u8) ((x) >> 16)) /* Sense Key byte, etc. */ ++#define ASC(x) ((u8) ((x) >> 8)) ++#define ASCQ(x) ((u8) (x)) ++ ++ ++/*-------------------------------------------------------------------------*/ ++ ++struct lun { ++ struct file *filp; ++ loff_t file_length; ++ loff_t num_sectors; ++ ++ unsigned int ro : 1; ++ unsigned int prevent_medium_removal : 1; ++ unsigned int registered : 1; ++ unsigned int info_valid : 1; ++ ++ u32 sense_data; ++ u32 sense_data_info; ++ u32 unit_attention_data; ++ ++ struct device dev; ++}; ++ ++#define backing_file_is_open(curlun) ((curlun)->filp != NULL) ++ ++ ++static struct lun *dev_to_lun(struct device *dev) ++{ ++ return container_of(dev, struct lun, dev); ++} ++ ++/* Big enough to hold our biggest descriptor */ ++#define EP0_BUFSIZE 256 ++#define DELAYED_STATUS (EP0_BUFSIZE + 999) /* An impossibly large value */ ++ ++/* Number of buffers we will use. 2 is enough for double-buffering */ ++#define NUM_BUFFERS 2 ++ ++enum fsg_buffer_state { ++ BUF_STATE_EMPTY = 0, ++ BUF_STATE_FULL, ++ BUF_STATE_BUSY ++}; ++ ++struct fsg_buffhd { ++ void *buf; ++ enum fsg_buffer_state state; ++ struct fsg_buffhd *next; ++ ++ /* The NetChip 2280 is faster, and handles some protocol faults ++ * better, if we don't submit any short bulk-out read requests. ++ * So we will record the intended request length here. */ ++ unsigned int bulk_out_intended_length; ++ ++ struct usb_request *inreq; ++ int inreq_busy; ++ struct usb_request *outreq; ++ int outreq_busy; ++}; ++ ++enum fsg_state { ++ /* This one isn't used anywhere */ ++ FSG_STATE_COMMAND_PHASE = -10, ++ ++ FSG_STATE_DATA_PHASE, ++ FSG_STATE_STATUS_PHASE, ++ ++ FSG_STATE_IDLE = 0, ++ FSG_STATE_ABORT_BULK_OUT, ++ FSG_STATE_RESET, ++ FSG_STATE_CONFIG_CHANGE, ++ FSG_STATE_EXIT, ++ FSG_STATE_TERMINATED ++}; ++ ++enum data_direction { ++ DATA_DIR_UNKNOWN = 0, ++ DATA_DIR_FROM_HOST, ++ DATA_DIR_TO_HOST, ++ DATA_DIR_NONE ++}; ++ ++struct fsg_dev { ++ struct usb_function function; ++ struct usb_composite_dev *cdev; ++ ++ /* lock protects: state and all the req_busy's */ ++ spinlock_t lock; ++ ++ /* filesem protects: backing files in use */ ++ struct rw_semaphore filesem; ++ ++ /* reference counting: wait until all LUNs are released */ ++ struct kref ref; ++ ++ unsigned int bulk_out_maxpacket; ++ enum fsg_state state; /* For exception handling */ ++ ++ u8 config, new_config; ++ ++ unsigned int running : 1; ++ unsigned int bulk_in_enabled : 1; ++ unsigned int bulk_out_enabled : 1; ++ unsigned int phase_error : 1; ++ unsigned int short_packet_received : 1; ++ unsigned int bad_lun_okay : 1; ++ ++ unsigned long atomic_bitflags; ++#define REGISTERED 0 ++#define CLEAR_BULK_HALTS 1 ++#define SUSPENDED 2 ++ ++ struct usb_ep *bulk_in; ++ struct usb_ep *bulk_out; ++ ++ struct fsg_buffhd *next_buffhd_to_fill; ++ struct fsg_buffhd *next_buffhd_to_drain; ++ struct fsg_buffhd buffhds[NUM_BUFFERS]; ++ ++ int thread_wakeup_needed; ++ struct completion thread_notifier; ++ struct task_struct *thread_task; ++ ++ int cmnd_size; ++ u8 cmnd[MAX_COMMAND_SIZE]; ++ enum data_direction data_dir; ++ u32 data_size; ++ u32 data_size_from_cmnd; ++ u32 tag; ++ unsigned int lun; ++ u32 residue; ++ u32 usb_amount_left; ++ ++ unsigned int nluns; ++ struct lun *luns; ++ struct lun *curlun; ++ ++ u32 buf_size; ++ const char *vendor; ++ const char *product; ++ int release; ++ ++ struct switch_dev sdev; ++ ++ struct wake_lock wake_lock; ++}; ++ ++static inline struct fsg_dev *func_to_dev(struct usb_function *f) ++{ ++ return container_of(f, struct fsg_dev, function); ++} ++ ++static int exception_in_progress(struct fsg_dev *fsg) ++{ ++ return (fsg->state > FSG_STATE_IDLE); ++} ++ ++/* Make bulk-out requests be divisible by the maxpacket size */ ++static void set_bulk_out_req_length(struct fsg_dev *fsg, ++ struct fsg_buffhd *bh, unsigned int length) ++{ ++ unsigned int rem; ++ ++ bh->bulk_out_intended_length = length; ++ rem = length % fsg->bulk_out_maxpacket; ++ if (rem > 0) ++ length += fsg->bulk_out_maxpacket - rem; ++ bh->outreq->length = length; ++} ++ ++static struct fsg_dev *the_fsg; ++ ++static void close_backing_file(struct fsg_dev *fsg, struct lun *curlun); ++static void close_all_backing_files(struct fsg_dev *fsg); ++ ++ ++/*-------------------------------------------------------------------------*/ ++ ++#ifdef DUMP_MSGS ++ ++static void dump_msg(struct fsg_dev *fsg, const char *label, ++ const u8 *buf, unsigned int length) ++{ ++ if (length < 512) { ++ DBG(fsg, "%s, length %u:\n", label, length); ++ print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_OFFSET, ++ 16, 1, buf, length, 0); ++ } ++} ++ ++static void dump_cdb(struct fsg_dev *fsg) ++{} ++ ++#else ++ ++static void dump_msg(struct fsg_dev *fsg, const char *label, ++ const u8 *buf, unsigned int length) ++{} ++ ++#ifdef VERBOSE_DEBUG ++ ++static void dump_cdb(struct fsg_dev *fsg) ++{ ++ print_hex_dump(KERN_DEBUG, "SCSI CDB: ", DUMP_PREFIX_NONE, ++ 16, 1, fsg->cmnd, fsg->cmnd_size, 0); ++} ++ ++#else ++ ++static void dump_cdb(struct fsg_dev *fsg) ++{} ++ ++#endif /* VERBOSE_DEBUG */ ++#endif /* DUMP_MSGS */ ++ ++ ++/*-------------------------------------------------------------------------*/ ++ ++/* Routines for unaligned data access */ ++ ++static u16 get_be16(u8 *buf) ++{ ++ return ((u16) buf[0] << 8) | ((u16) buf[1]); ++} ++ ++static u32 get_be32(u8 *buf) ++{ ++ return ((u32) buf[0] << 24) | ((u32) buf[1] << 16) | ++ ((u32) buf[2] << 8) | ((u32) buf[3]); ++} ++ ++static void put_be16(u8 *buf, u16 val) ++{ ++ buf[0] = val >> 8; ++ buf[1] = val; ++} ++ ++static void put_be32(u8 *buf, u32 val) ++{ ++ buf[0] = val >> 24; ++ buf[1] = val >> 16; ++ buf[2] = val >> 8; ++ buf[3] = val & 0xff; ++} ++ ++/*-------------------------------------------------------------------------*/ ++ ++/* ++ * DESCRIPTORS ... most are static, but strings and (full) configuration ++ * descriptors are built on demand. Also the (static) config and interface ++ * descriptors are adjusted during fsg_bind(). ++ */ ++ ++/* There is only one interface. */ ++ ++static struct usb_interface_descriptor ++intf_desc = { ++ .bLength = sizeof intf_desc, ++ .bDescriptorType = USB_DT_INTERFACE, ++ ++ .bNumEndpoints = 2, /* Adjusted during fsg_bind() */ ++ .bInterfaceClass = USB_CLASS_MASS_STORAGE, ++ .bInterfaceSubClass = US_SC_SCSI, ++ .bInterfaceProtocol = US_PR_BULK, ++}; ++ ++/* Three full-speed endpoint descriptors: bulk-in, bulk-out, ++ * and interrupt-in. */ ++ ++static struct usb_endpoint_descriptor ++fs_bulk_in_desc = { ++ .bLength = USB_DT_ENDPOINT_SIZE, ++ .bDescriptorType = USB_DT_ENDPOINT, ++ ++ .bEndpointAddress = USB_DIR_IN, ++ .bmAttributes = USB_ENDPOINT_XFER_BULK, ++ /* wMaxPacketSize set by autoconfiguration */ ++}; ++ ++static struct usb_endpoint_descriptor ++fs_bulk_out_desc = { ++ .bLength = USB_DT_ENDPOINT_SIZE, ++ .bDescriptorType = USB_DT_ENDPOINT, ++ ++ .bEndpointAddress = USB_DIR_OUT, ++ .bmAttributes = USB_ENDPOINT_XFER_BULK, ++ /* wMaxPacketSize set by autoconfiguration */ ++}; ++ ++static struct usb_descriptor_header *fs_function[] = { ++ (struct usb_descriptor_header *) &intf_desc, ++ (struct usb_descriptor_header *) &fs_bulk_in_desc, ++ (struct usb_descriptor_header *) &fs_bulk_out_desc, ++ NULL, ++}; ++#define FS_FUNCTION_PRE_EP_ENTRIES 2 ++ ++ ++static struct usb_endpoint_descriptor ++hs_bulk_in_desc = { ++ .bLength = USB_DT_ENDPOINT_SIZE, ++ .bDescriptorType = USB_DT_ENDPOINT, ++ ++ /* bEndpointAddress copied from fs_bulk_in_desc during fsg_bind() */ ++ .bmAttributes = USB_ENDPOINT_XFER_BULK, ++ .wMaxPacketSize = __constant_cpu_to_le16(512), ++}; ++ ++static struct usb_endpoint_descriptor ++hs_bulk_out_desc = { ++ .bLength = USB_DT_ENDPOINT_SIZE, ++ .bDescriptorType = USB_DT_ENDPOINT, ++ ++ /* bEndpointAddress copied from fs_bulk_out_desc during fsg_bind() */ ++ .bmAttributes = USB_ENDPOINT_XFER_BULK, ++ .wMaxPacketSize = __constant_cpu_to_le16(512), ++ .bInterval = 1, /* NAK every 1 uframe */ ++}; ++ ++ ++static struct usb_descriptor_header *hs_function[] = { ++ (struct usb_descriptor_header *) &intf_desc, ++ (struct usb_descriptor_header *) &hs_bulk_in_desc, ++ (struct usb_descriptor_header *) &hs_bulk_out_desc, ++ NULL, ++}; ++ ++/* Maxpacket and other transfer characteristics vary by speed. */ ++static struct usb_endpoint_descriptor * ++ep_desc(struct usb_gadget *g, struct usb_endpoint_descriptor *fs, ++ struct usb_endpoint_descriptor *hs) ++{ ++ if (gadget_is_dualspeed(g) && g->speed == USB_SPEED_HIGH) ++ return hs; ++ return fs; ++} ++ ++/*-------------------------------------------------------------------------*/ ++ ++/* These routines may be called in process context or in_irq */ ++ ++/* Caller must hold fsg->lock */ ++static void wakeup_thread(struct fsg_dev *fsg) ++{ ++ /* Tell the main thread that something has happened */ ++ fsg->thread_wakeup_needed = 1; ++ if (fsg->thread_task) ++ wake_up_process(fsg->thread_task); ++} ++ ++ ++static void raise_exception(struct fsg_dev *fsg, enum fsg_state new_state) ++{ ++ unsigned long flags; ++ ++ DBG(fsg, "raise_exception %d\n", (int)new_state); ++ /* Do nothing if a higher-priority exception is already in progress. ++ * If a lower-or-equal priority exception is in progress, preempt it ++ * and notify the main thread by sending it a signal. */ ++ spin_lock_irqsave(&fsg->lock, flags); ++ if (fsg->state <= new_state) { ++ fsg->state = new_state; ++ if (fsg->thread_task) ++ send_sig_info(SIGUSR1, SEND_SIG_FORCED, ++ fsg->thread_task); ++ } ++ spin_unlock_irqrestore(&fsg->lock, flags); ++} ++ ++ ++/*-------------------------------------------------------------------------*/ ++ ++/* Bulk and interrupt endpoint completion handlers. ++ * These always run in_irq. */ ++ ++static void bulk_in_complete(struct usb_ep *ep, struct usb_request *req) ++{ ++ struct fsg_dev *fsg = ep->driver_data; ++ struct fsg_buffhd *bh = req->context; ++ ++ if (req->status || req->actual != req->length) ++ DBG(fsg, "%s --> %d, %u/%u\n", __func__, ++ req->status, req->actual, req->length); ++ ++ /* Hold the lock while we update the request and buffer states */ ++ smp_wmb(); ++ spin_lock(&fsg->lock); ++ bh->inreq_busy = 0; ++ bh->state = BUF_STATE_EMPTY; ++ wakeup_thread(fsg); ++ spin_unlock(&fsg->lock); ++} ++ ++static void bulk_out_complete(struct usb_ep *ep, struct usb_request *req) ++{ ++ struct fsg_dev *fsg = ep->driver_data; ++ struct fsg_buffhd *bh = req->context; ++ ++ dump_msg(fsg, "bulk-out", req->buf, req->actual); ++ if (req->status || req->actual != bh->bulk_out_intended_length) ++ DBG(fsg, "%s --> %d, %u/%u\n", __func__, ++ req->status, req->actual, ++ bh->bulk_out_intended_length); ++ ++ /* Hold the lock while we update the request and buffer states */ ++ smp_wmb(); ++ spin_lock(&fsg->lock); ++ bh->outreq_busy = 0; ++ bh->state = BUF_STATE_FULL; ++ wakeup_thread(fsg); ++ spin_unlock(&fsg->lock); ++} ++ ++static int fsg_function_setup(struct usb_function *f, ++ const struct usb_ctrlrequest *ctrl) ++{ ++ struct fsg_dev *fsg = func_to_dev(f); ++ struct usb_composite_dev *cdev = fsg->cdev; ++ int value = -EOPNOTSUPP; ++ u16 w_index = le16_to_cpu(ctrl->wIndex); ++ u16 w_value = le16_to_cpu(ctrl->wValue); ++ u16 w_length = le16_to_cpu(ctrl->wLength); ++ ++ DBG(fsg, "fsg_function_setup\n"); ++ /* Handle Bulk-only class-specific requests */ ++ if ((ctrl->bRequestType & USB_TYPE_MASK) == USB_TYPE_CLASS) { ++ DBG(fsg, "USB_TYPE_CLASS\n"); ++ switch (ctrl->bRequest) { ++ case USB_BULK_RESET_REQUEST: ++ if (ctrl->bRequestType != (USB_DIR_OUT | ++ USB_TYPE_CLASS | USB_RECIP_INTERFACE)) ++ break; ++ if (w_index != 0 || w_value != 0) { ++ value = -EDOM; ++ break; ++ } ++ ++ /* Raise an exception to stop the current operation ++ * and reinitialize our state. */ ++ DBG(fsg, "bulk reset request\n"); ++ raise_exception(fsg, FSG_STATE_RESET); ++ value = DELAYED_STATUS; ++ break; ++ ++ case USB_BULK_GET_MAX_LUN_REQUEST: ++ if (ctrl->bRequestType != (USB_DIR_IN | ++ USB_TYPE_CLASS | USB_RECIP_INTERFACE)) ++ break; ++ if (w_index != 0 || w_value != 0) { ++ value = -EDOM; ++ break; ++ } ++ VDBG(fsg, "get max LUN\n"); ++ *(u8 *)cdev->req->buf = fsg->nluns - 1; ++ value = 1; ++ break; ++ } ++ } ++ ++ if (value == -EOPNOTSUPP) ++ VDBG(fsg, ++ "unknown class-specific control req " ++ "%02x.%02x v%04x i%04x l%u\n", ++ ctrl->bRequestType, ctrl->bRequest, ++ le16_to_cpu(ctrl->wValue), w_index, w_length); ++ return value; ++} ++ ++/*-------------------------------------------------------------------------*/ ++ ++/* All the following routines run in process context */ ++ ++ ++/* Use this for bulk or interrupt transfers, not ep0 */ ++static void start_transfer(struct fsg_dev *fsg, struct usb_ep *ep, ++ struct usb_request *req, int *pbusy, ++ enum fsg_buffer_state *state) ++{ ++ int rc; ++ ++ DBG(fsg, "start_transfer req: %p, req->buf: %p\n", req, req->buf); ++ if (ep == fsg->bulk_in) ++ dump_msg(fsg, "bulk-in", req->buf, req->length); ++ ++ spin_lock_irq(&fsg->lock); ++ *pbusy = 1; ++ *state = BUF_STATE_BUSY; ++ spin_unlock_irq(&fsg->lock); ++ rc = usb_ep_queue(ep, req, GFP_KERNEL); ++ if (rc != 0) { ++ *pbusy = 0; ++ *state = BUF_STATE_EMPTY; ++ ++ /* We can't do much more than wait for a reset */ ++ ++ /* Note: currently the net2280 driver fails zero-length ++ * submissions if DMA is enabled. */ ++ if (rc != -ESHUTDOWN && !(rc == -EOPNOTSUPP && ++ req->length == 0)) ++ WARN(fsg, "error in submission: %s --> %d\n", ++ (ep == fsg->bulk_in ? "bulk-in" : "bulk-out"), ++ rc); ++ } ++} ++ ++ ++static int sleep_thread(struct fsg_dev *fsg) ++{ ++ int rc = 0; ++ ++ /* Wait until a signal arrives or we are woken up */ ++ for (;;) { ++ try_to_freeze(); ++ set_current_state(TASK_INTERRUPTIBLE); ++ if (signal_pending(current)) { ++ rc = -EINTR; ++ break; ++ } ++ if (fsg->thread_wakeup_needed) ++ break; ++ schedule(); ++ } ++ __set_current_state(TASK_RUNNING); ++ fsg->thread_wakeup_needed = 0; ++ return rc; ++} ++ ++ ++/*-------------------------------------------------------------------------*/ ++ ++static int do_read(struct fsg_dev *fsg) ++{ ++ struct lun *curlun = fsg->curlun; ++ u32 lba; ++ struct fsg_buffhd *bh; ++ int rc; ++ u32 amount_left; ++ loff_t file_offset, file_offset_tmp; ++ unsigned int amount; ++ unsigned int partial_page; ++ ssize_t nread; ++ ++ /* Get the starting Logical Block Address and check that it's ++ * not too big */ ++ if (fsg->cmnd[0] == SC_READ_6) ++ lba = (fsg->cmnd[1] << 16) | get_be16(&fsg->cmnd[2]); ++ else { ++ lba = get_be32(&fsg->cmnd[2]); ++ ++ /* We allow DPO (Disable Page Out = don't save data in the ++ * cache) and FUA (Force Unit Access = don't read from the ++ * cache), but we don't implement them. */ ++ if ((fsg->cmnd[1] & ~0x18) != 0) { ++ curlun->sense_data = SS_INVALID_FIELD_IN_CDB; ++ return -EINVAL; ++ } ++ } ++ if (lba >= curlun->num_sectors) { ++ curlun->sense_data = SS_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE; ++ return -EINVAL; ++ } ++ file_offset = ((loff_t) lba) << 9; ++ ++ /* Carry out the file reads */ ++ amount_left = fsg->data_size_from_cmnd; ++ if (unlikely(amount_left == 0)) ++ return -EIO; /* No default reply */ ++ ++ for (;;) { ++ ++ /* Figure out how much we need to read: ++ * Try to read the remaining amount. ++ * But don't read more than the buffer size. ++ * And don't try to read past the end of the file. ++ * Finally, if we're not at a page boundary, don't read past ++ * the next page. ++ * If this means reading 0 then we were asked to read past ++ * the end of file. */ ++ amount = min((unsigned int) amount_left, ++ (unsigned int)fsg->buf_size); ++ amount = min((loff_t) amount, ++ curlun->file_length - file_offset); ++ partial_page = file_offset & (PAGE_CACHE_SIZE - 1); ++ if (partial_page > 0) ++ amount = min(amount, (unsigned int) PAGE_CACHE_SIZE - ++ partial_page); ++ ++ /* Wait for the next buffer to become available */ ++ bh = fsg->next_buffhd_to_fill; ++ while (bh->state != BUF_STATE_EMPTY) { ++ rc = sleep_thread(fsg); ++ if (rc) ++ return rc; ++ } ++ ++ /* If we were asked to read past the end of file, ++ * end with an empty buffer. */ ++ if (amount == 0) { ++ curlun->sense_data = ++ SS_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE; ++ curlun->sense_data_info = file_offset >> 9; ++ curlun->info_valid = 1; ++ bh->inreq->length = 0; ++ bh->state = BUF_STATE_FULL; ++ break; ++ } ++ ++ /* Perform the read */ ++ file_offset_tmp = file_offset; ++ nread = vfs_read(curlun->filp, ++ (char __user *) bh->buf, ++ amount, &file_offset_tmp); ++ VLDBG(curlun, "file read %u @ %llu -> %d\n", amount, ++ (unsigned long long) file_offset, ++ (int) nread); ++ if (signal_pending(current)) ++ return -EINTR; ++ ++ if (nread < 0) { ++ LDBG(curlun, "error in file read: %d\n", ++ (int) nread); ++ nread = 0; ++ } else if (nread < amount) { ++ LDBG(curlun, "partial file read: %d/%u\n", ++ (int) nread, amount); ++ nread -= (nread & 511); /* Round down to a block */ ++ } ++ file_offset += nread; ++ amount_left -= nread; ++ fsg->residue -= nread; ++ bh->inreq->length = nread; ++ bh->state = BUF_STATE_FULL; ++ ++ /* If an error occurred, report it and its position */ ++ if (nread < amount) { ++ curlun->sense_data = SS_UNRECOVERED_READ_ERROR; ++ curlun->sense_data_info = file_offset >> 9; ++ curlun->info_valid = 1; ++ break; ++ } ++ ++ if (amount_left == 0) ++ break; /* No more left to read */ ++ ++ /* Send this buffer and go read some more */ ++ start_transfer(fsg, fsg->bulk_in, bh->inreq, ++ &bh->inreq_busy, &bh->state); ++ fsg->next_buffhd_to_fill = bh->next; ++ } ++ ++ return -EIO; /* No default reply */ ++} ++ ++ ++/*-------------------------------------------------------------------------*/ ++ ++static int do_write(struct fsg_dev *fsg) ++{ ++ struct lun *curlun = fsg->curlun; ++ u32 lba; ++ struct fsg_buffhd *bh; ++ int get_some_more; ++ u32 amount_left_to_req, amount_left_to_write; ++ loff_t usb_offset, file_offset, file_offset_tmp; ++ unsigned int amount; ++ unsigned int partial_page; ++ ssize_t nwritten; ++ int rc; ++ ++ if (curlun->ro) { ++ curlun->sense_data = SS_WRITE_PROTECTED; ++ return -EINVAL; ++ } ++ curlun->filp->f_flags &= ~O_SYNC; /* Default is not to wait */ ++ ++ /* Get the starting Logical Block Address and check that it's ++ * not too big */ ++ if (fsg->cmnd[0] == SC_WRITE_6) ++ lba = (fsg->cmnd[1] << 16) | get_be16(&fsg->cmnd[2]); ++ else { ++ lba = get_be32(&fsg->cmnd[2]); ++ ++ /* We allow DPO (Disable Page Out = don't save data in the ++ * cache) and FUA (Force Unit Access = write directly to the ++ * medium). We don't implement DPO; we implement FUA by ++ * performing synchronous output. */ ++ if ((fsg->cmnd[1] & ~0x18) != 0) { ++ curlun->sense_data = SS_INVALID_FIELD_IN_CDB; ++ return -EINVAL; ++ } ++ if (fsg->cmnd[1] & 0x08) /* FUA */ ++ curlun->filp->f_flags |= O_SYNC; ++ } ++ if (lba >= curlun->num_sectors) { ++ curlun->sense_data = SS_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE; ++ return -EINVAL; ++ } ++ ++ /* Carry out the file writes */ ++ get_some_more = 1; ++ file_offset = usb_offset = ((loff_t) lba) << 9; ++ amount_left_to_req = amount_left_to_write = fsg->data_size_from_cmnd; ++ ++ while (amount_left_to_write > 0) { ++ ++ /* Queue a request for more data from the host */ ++ bh = fsg->next_buffhd_to_fill; ++ if (bh->state == BUF_STATE_EMPTY && get_some_more) { ++ ++ /* Figure out how much we want to get: ++ * Try to get the remaining amount. ++ * But don't get more than the buffer size. ++ * And don't try to go past the end of the file. ++ * If we're not at a page boundary, ++ * don't go past the next page. ++ * If this means getting 0, then we were asked ++ * to write past the end of file. ++ * Finally, round down to a block boundary. */ ++ amount = min(amount_left_to_req, (u32)fsg->buf_size); ++ amount = min((loff_t) amount, curlun->file_length - ++ usb_offset); ++ partial_page = usb_offset & (PAGE_CACHE_SIZE - 1); ++ if (partial_page > 0) ++ amount = min(amount, ++ (unsigned int) PAGE_CACHE_SIZE - partial_page); ++ ++ if (amount == 0) { ++ get_some_more = 0; ++ curlun->sense_data = ++ SS_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE; ++ curlun->sense_data_info = usb_offset >> 9; ++ curlun->info_valid = 1; ++ continue; ++ } ++ amount -= (amount & 511); ++ if (amount == 0) { ++ ++ /* Why were we were asked to transfer a ++ * partial block? */ ++ get_some_more = 0; ++ continue; ++ } ++ ++ /* Get the next buffer */ ++ usb_offset += amount; ++ fsg->usb_amount_left -= amount; ++ amount_left_to_req -= amount; ++ if (amount_left_to_req == 0) ++ get_some_more = 0; ++ ++ /* amount is always divisible by 512, hence by ++ * the bulk-out maxpacket size */ ++ bh->outreq->length = bh->bulk_out_intended_length = ++ amount; ++ start_transfer(fsg, fsg->bulk_out, bh->outreq, ++ &bh->outreq_busy, &bh->state); ++ fsg->next_buffhd_to_fill = bh->next; ++ continue; ++ } ++ ++ /* Write the received data to the backing file */ ++ bh = fsg->next_buffhd_to_drain; ++ if (bh->state == BUF_STATE_EMPTY && !get_some_more) ++ break; /* We stopped early */ ++ if (bh->state == BUF_STATE_FULL) { ++ smp_rmb(); ++ fsg->next_buffhd_to_drain = bh->next; ++ bh->state = BUF_STATE_EMPTY; ++ ++ /* Did something go wrong with the transfer? */ ++ if (bh->outreq->status != 0) { ++ curlun->sense_data = SS_COMMUNICATION_FAILURE; ++ curlun->sense_data_info = file_offset >> 9; ++ curlun->info_valid = 1; ++ break; ++ } ++ ++ amount = bh->outreq->actual; ++ if (curlun->file_length - file_offset < amount) { ++ LERROR(curlun, ++ "write %u @ %llu beyond end %llu\n", ++ amount, (unsigned long long) file_offset, ++ (unsigned long long) curlun->file_length); ++ amount = curlun->file_length - file_offset; ++ } ++ ++ /* Perform the write */ ++ file_offset_tmp = file_offset; ++ nwritten = vfs_write(curlun->filp, ++ (char __user *) bh->buf, ++ amount, &file_offset_tmp); ++ VLDBG(curlun, "file write %u @ %llu -> %d\n", amount, ++ (unsigned long long) file_offset, ++ (int) nwritten); ++ if (signal_pending(current)) ++ return -EINTR; /* Interrupted! */ ++ ++ if (nwritten < 0) { ++ LDBG(curlun, "error in file write: %d\n", ++ (int) nwritten); ++ nwritten = 0; ++ } else if (nwritten < amount) { ++ LDBG(curlun, "partial file write: %d/%u\n", ++ (int) nwritten, amount); ++ nwritten -= (nwritten & 511); ++ /* Round down to a block */ ++ } ++ file_offset += nwritten; ++ amount_left_to_write -= nwritten; ++ fsg->residue -= nwritten; ++ ++ /* If an error occurred, report it and its position */ ++ if (nwritten < amount) { ++ curlun->sense_data = SS_WRITE_ERROR; ++ curlun->sense_data_info = file_offset >> 9; ++ curlun->info_valid = 1; ++ break; ++ } ++ ++ /* Did the host decide to stop early? */ ++ if (bh->outreq->actual != bh->outreq->length) { ++ fsg->short_packet_received = 1; ++ break; ++ } ++ continue; ++ } ++ ++ /* Wait for something to happen */ ++ rc = sleep_thread(fsg); ++ if (rc) ++ return rc; ++ } ++ ++ return -EIO; /* No default reply */ ++} ++ ++ ++/*-------------------------------------------------------------------------*/ ++ ++/* Sync the file data, don't bother with the metadata. ++ * The caller must own fsg->filesem. ++ * This code was copied from fs/buffer.c:sys_fdatasync(). */ ++static int fsync_sub(struct lun *curlun) ++{ ++ struct file *filp = curlun->filp; ++ struct inode *inode; ++ int rc, err; ++ ++ if (curlun->ro || !filp) ++ return 0; ++ if (!filp->f_op->fsync) ++ return -EINVAL; ++ ++ inode = filp->f_path.dentry->d_inode; ++ mutex_lock(&inode->i_mutex); ++ rc = filemap_fdatawrite(inode->i_mapping); ++ err = filp->f_op->fsync(filp, filp->f_path.dentry, 1); ++ if (!rc) ++ rc = err; ++ err = filemap_fdatawait(inode->i_mapping); ++ if (!rc) ++ rc = err; ++ mutex_unlock(&inode->i_mutex); ++ VLDBG(curlun, "fdatasync -> %d\n", rc); ++ return rc; ++} ++ ++static void fsync_all(struct fsg_dev *fsg) ++{ ++ int i; ++ ++ for (i = 0; i < fsg->nluns; ++i) ++ fsync_sub(&fsg->luns[i]); ++} ++ ++static int do_synchronize_cache(struct fsg_dev *fsg) ++{ ++ struct lun *curlun = fsg->curlun; ++ int rc; ++ ++ /* We ignore the requested LBA and write out all file's ++ * dirty data buffers. */ ++ rc = fsync_sub(curlun); ++ if (rc) ++ curlun->sense_data = SS_WRITE_ERROR; ++ return 0; ++} ++ ++ ++/*-------------------------------------------------------------------------*/ ++ ++static void invalidate_sub(struct lun *curlun) ++{ ++ struct file *filp = curlun->filp; ++ struct inode *inode = filp->f_path.dentry->d_inode; ++ unsigned long rc; ++ ++ rc = invalidate_mapping_pages(inode->i_mapping, 0, -1); ++ VLDBG(curlun, "invalidate_inode_pages -> %ld\n", rc); ++} ++ ++static int do_verify(struct fsg_dev *fsg) ++{ ++ struct lun *curlun = fsg->curlun; ++ u32 lba; ++ u32 verification_length; ++ struct fsg_buffhd *bh = fsg->next_buffhd_to_fill; ++ loff_t file_offset, file_offset_tmp; ++ u32 amount_left; ++ unsigned int amount; ++ ssize_t nread; ++ ++ /* Get the starting Logical Block Address and check that it's ++ * not too big */ ++ lba = get_be32(&fsg->cmnd[2]); ++ if (lba >= curlun->num_sectors) { ++ curlun->sense_data = SS_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE; ++ return -EINVAL; ++ } ++ ++ /* We allow DPO (Disable Page Out = don't save data in the ++ * cache) but we don't implement it. */ ++ if ((fsg->cmnd[1] & ~0x10) != 0) { ++ curlun->sense_data = SS_INVALID_FIELD_IN_CDB; ++ return -EINVAL; ++ } ++ ++ verification_length = get_be16(&fsg->cmnd[7]); ++ if (unlikely(verification_length == 0)) ++ return -EIO; /* No default reply */ ++ ++ /* Prepare to carry out the file verify */ ++ amount_left = verification_length << 9; ++ file_offset = ((loff_t) lba) << 9; ++ ++ /* Write out all the dirty buffers before invalidating them */ ++ fsync_sub(curlun); ++ if (signal_pending(current)) ++ return -EINTR; ++ ++ invalidate_sub(curlun); ++ if (signal_pending(current)) ++ return -EINTR; ++ ++ /* Just try to read the requested blocks */ ++ while (amount_left > 0) { ++ ++ /* Figure out how much we need to read: ++ * Try to read the remaining amount, but not more than ++ * the buffer size. ++ * And don't try to read past the end of the file. ++ * If this means reading 0 then we were asked to read ++ * past the end of file. */ ++ amount = min((unsigned int) amount_left, ++ (unsigned int)fsg->buf_size); ++ amount = min((loff_t) amount, ++ curlun->file_length - file_offset); ++ if (amount == 0) { ++ curlun->sense_data = ++ SS_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE; ++ curlun->sense_data_info = file_offset >> 9; ++ curlun->info_valid = 1; ++ break; ++ } ++ ++ /* Perform the read */ ++ file_offset_tmp = file_offset; ++ nread = vfs_read(curlun->filp, ++ (char __user *) bh->buf, ++ amount, &file_offset_tmp); ++ VLDBG(curlun, "file read %u @ %llu -> %d\n", amount, ++ (unsigned long long) file_offset, ++ (int) nread); ++ if (signal_pending(current)) ++ return -EINTR; ++ ++ if (nread < 0) { ++ LDBG(curlun, "error in file verify: %d\n", ++ (int) nread); ++ nread = 0; ++ } else if (nread < amount) { ++ LDBG(curlun, "partial file verify: %d/%u\n", ++ (int) nread, amount); ++ nread -= (nread & 511); /* Round down to a sector */ ++ } ++ if (nread == 0) { ++ curlun->sense_data = SS_UNRECOVERED_READ_ERROR; ++ curlun->sense_data_info = file_offset >> 9; ++ curlun->info_valid = 1; ++ break; ++ } ++ file_offset += nread; ++ amount_left -= nread; ++ } ++ return 0; ++} ++ ++ ++/*-------------------------------------------------------------------------*/ ++ ++static int do_inquiry(struct fsg_dev *fsg, struct fsg_buffhd *bh) ++{ ++ u8 *buf = (u8 *) bh->buf; ++ ++ if (!fsg->curlun) { /* Unsupported LUNs are okay */ ++ fsg->bad_lun_okay = 1; ++ memset(buf, 0, 36); ++ buf[0] = 0x7f; /* Unsupported, no device-type */ ++ return 36; ++ } ++ ++ memset(buf, 0, 8); /* Non-removable, direct-access device */ ++ ++ buf[1] = 0x80; /* set removable bit */ ++ buf[2] = 2; /* ANSI SCSI level 2 */ ++ buf[3] = 2; /* SCSI-2 INQUIRY data format */ ++ buf[4] = 31; /* Additional length */ ++ /* No special options */ ++ sprintf(buf + 8, "%-8s%-16s%04x", fsg->vendor, ++ fsg->product, fsg->release); ++ return 36; ++} ++ ++ ++static int do_request_sense(struct fsg_dev *fsg, struct fsg_buffhd *bh) ++{ ++ struct lun *curlun = fsg->curlun; ++ u8 *buf = (u8 *) bh->buf; ++ u32 sd, sdinfo; ++ int valid; ++ ++ /* ++ * From the SCSI-2 spec., section 7.9 (Unit attention condition): ++ * ++ * If a REQUEST SENSE command is received from an initiator ++ * with a pending unit attention condition (before the target ++ * generates the contingent allegiance condition), then the ++ * target shall either: ++ * a) report any pending sense data and preserve the unit ++ * attention condition on the logical unit, or, ++ * b) report the unit attention condition, may discard any ++ * pending sense data, and clear the unit attention ++ * condition on the logical unit for that initiator. ++ * ++ * FSG normally uses option a); enable this code to use option b). ++ */ ++#if 0 ++ if (curlun && curlun->unit_attention_data != SS_NO_SENSE) { ++ curlun->sense_data = curlun->unit_attention_data; ++ curlun->unit_attention_data = SS_NO_SENSE; ++ } ++#endif ++ ++ if (!curlun) { /* Unsupported LUNs are okay */ ++ fsg->bad_lun_okay = 1; ++ sd = SS_LOGICAL_UNIT_NOT_SUPPORTED; ++ sdinfo = 0; ++ valid = 0; ++ } else { ++ sd = curlun->sense_data; ++ sdinfo = curlun->sense_data_info; ++ valid = curlun->info_valid << 7; ++ curlun->sense_data = SS_NO_SENSE; ++ curlun->sense_data_info = 0; ++ curlun->info_valid = 0; ++ } ++ ++ memset(buf, 0, 18); ++ buf[0] = valid | 0x70; /* Valid, current error */ ++ buf[2] = SK(sd); ++ put_be32(&buf[3], sdinfo); /* Sense information */ ++ buf[7] = 18 - 8; /* Additional sense length */ ++ buf[12] = ASC(sd); ++ buf[13] = ASCQ(sd); ++ return 18; ++} ++ ++ ++static int do_read_capacity(struct fsg_dev *fsg, struct fsg_buffhd *bh) ++{ ++ struct lun *curlun = fsg->curlun; ++ u32 lba = get_be32(&fsg->cmnd[2]); ++ int pmi = fsg->cmnd[8]; ++ u8 *buf = (u8 *) bh->buf; ++ ++ /* Check the PMI and LBA fields */ ++ if (pmi > 1 || (pmi == 0 && lba != 0)) { ++ curlun->sense_data = SS_INVALID_FIELD_IN_CDB; ++ return -EINVAL; ++ } ++ ++ put_be32(&buf[0], curlun->num_sectors - 1); /* Max logical block */ ++ put_be32(&buf[4], 512); /* Block length */ ++ return 8; ++} ++ ++ ++static int do_mode_sense(struct fsg_dev *fsg, struct fsg_buffhd *bh) ++{ ++ struct lun *curlun = fsg->curlun; ++ int mscmnd = fsg->cmnd[0]; ++ u8 *buf = (u8 *) bh->buf; ++ u8 *buf0 = buf; ++ int pc, page_code; ++ int changeable_values, all_pages; ++ int valid_page = 0; ++ int len, limit; ++ ++ if ((fsg->cmnd[1] & ~0x08) != 0) { /* Mask away DBD */ ++ curlun->sense_data = SS_INVALID_FIELD_IN_CDB; ++ return -EINVAL; ++ } ++ pc = fsg->cmnd[2] >> 6; ++ page_code = fsg->cmnd[2] & 0x3f; ++ if (pc == 3) { ++ curlun->sense_data = SS_SAVING_PARAMETERS_NOT_SUPPORTED; ++ return -EINVAL; ++ } ++ changeable_values = (pc == 1); ++ all_pages = (page_code == 0x3f); ++ ++ /* Write the mode parameter header. Fixed values are: default ++ * medium type, no cache control (DPOFUA), and no block descriptors. ++ * The only variable value is the WriteProtect bit. We will fill in ++ * the mode data length later. */ ++ memset(buf, 0, 8); ++ if (mscmnd == SC_MODE_SENSE_6) { ++ buf[2] = (curlun->ro ? 0x80 : 0x00); /* WP, DPOFUA */ ++ buf += 4; ++ limit = 255; ++ } else { /* SC_MODE_SENSE_10 */ ++ buf[3] = (curlun->ro ? 0x80 : 0x00); /* WP, DPOFUA */ ++ buf += 8; ++ limit = 65535; ++ } ++ ++ /* No block descriptors */ ++ ++ /* Disabled to workaround USB reset problems with a Vista host. ++ */ ++#if 0 ++ /* The mode pages, in numerical order. The only page we support ++ * is the Caching page. */ ++ if (page_code == 0x08 || all_pages) { ++ valid_page = 1; ++ buf[0] = 0x08; /* Page code */ ++ buf[1] = 10; /* Page length */ ++ memset(buf+2, 0, 10); /* None of the fields are changeable */ ++ ++ if (!changeable_values) { ++ buf[2] = 0x04; /* Write cache enable, */ ++ /* Read cache not disabled */ ++ /* No cache retention priorities */ ++ put_be16(&buf[4], 0xffff); /* Don't disable prefetch */ ++ /* Minimum prefetch = 0 */ ++ put_be16(&buf[8], 0xffff); /* Maximum prefetch */ ++ /* Maximum prefetch ceiling */ ++ put_be16(&buf[10], 0xffff); ++ } ++ buf += 12; ++ } ++#else ++ valid_page = 1; ++#endif ++ ++ /* Check that a valid page was requested and the mode data length ++ * isn't too long. */ ++ len = buf - buf0; ++ if (!valid_page || len > limit) { ++ curlun->sense_data = SS_INVALID_FIELD_IN_CDB; ++ return -EINVAL; ++ } ++ ++ /* Store the mode data length */ ++ if (mscmnd == SC_MODE_SENSE_6) ++ buf0[0] = len - 1; ++ else ++ put_be16(buf0, len - 2); ++ return len; ++} ++ ++static int do_start_stop(struct fsg_dev *fsg) ++{ ++ struct lun *curlun = fsg->curlun; ++ int loej, start; ++ ++ /* int immed = fsg->cmnd[1] & 0x01; */ ++ loej = fsg->cmnd[4] & 0x02; ++ start = fsg->cmnd[4] & 0x01; ++ ++ if (loej) { ++ /* eject request from the host */ ++ if (backing_file_is_open(curlun)) { ++ close_backing_file(fsg, curlun); ++ curlun->unit_attention_data = SS_MEDIUM_NOT_PRESENT; ++ } ++ } ++ ++ return 0; ++} ++ ++static int do_prevent_allow(struct fsg_dev *fsg) ++{ ++ struct lun *curlun = fsg->curlun; ++ int prevent; ++ ++ prevent = fsg->cmnd[4] & 0x01; ++ if ((fsg->cmnd[4] & ~0x01) != 0) { /* Mask away Prevent */ ++ curlun->sense_data = SS_INVALID_FIELD_IN_CDB; ++ return -EINVAL; ++ } ++ ++ if (curlun->prevent_medium_removal && !prevent) ++ fsync_sub(curlun); ++ curlun->prevent_medium_removal = prevent; ++ return 0; ++} ++ ++ ++static int do_read_format_capacities(struct fsg_dev *fsg, ++ struct fsg_buffhd *bh) ++{ ++ struct lun *curlun = fsg->curlun; ++ u8 *buf = (u8 *) bh->buf; ++ ++ buf[0] = buf[1] = buf[2] = 0; ++ buf[3] = 8; /* Only the Current/Maximum Capacity Descriptor */ ++ buf += 4; ++ ++ put_be32(&buf[0], curlun->num_sectors); /* Number of blocks */ ++ put_be32(&buf[4], 512); /* Block length */ ++ buf[4] = 0x02; /* Current capacity */ ++ return 12; ++} ++ ++ ++static int do_mode_select(struct fsg_dev *fsg, struct fsg_buffhd *bh) ++{ ++ struct lun *curlun = fsg->curlun; ++ ++ /* We don't support MODE SELECT */ ++ curlun->sense_data = SS_INVALID_COMMAND; ++ return -EINVAL; ++} ++ ++ ++/*-------------------------------------------------------------------------*/ ++#if 0 ++static int write_zero(struct fsg_dev *fsg) ++{ ++ struct fsg_buffhd *bh; ++ int rc; ++ ++ DBG(fsg, "write_zero\n"); ++ /* Wait for the next buffer to become available */ ++ bh = fsg->next_buffhd_to_fill; ++ while (bh->state != BUF_STATE_EMPTY) { ++ rc = sleep_thread(fsg); ++ if (rc) ++ return rc; ++ } ++ ++ bh->inreq->length = 0; ++ start_transfer(fsg, fsg->bulk_in, bh->inreq, ++ &bh->inreq_busy, &bh->state); ++ ++ fsg->next_buffhd_to_fill = bh->next; ++ return 0; ++} ++#endif ++ ++static int throw_away_data(struct fsg_dev *fsg) ++{ ++ struct fsg_buffhd *bh; ++ u32 amount; ++ int rc; ++ ++ DBG(fsg, "throw_away_data\n"); ++ while ((bh = fsg->next_buffhd_to_drain)->state != BUF_STATE_EMPTY || ++ fsg->usb_amount_left > 0) { ++ ++ /* Throw away the data in a filled buffer */ ++ if (bh->state == BUF_STATE_FULL) { ++ smp_rmb(); ++ bh->state = BUF_STATE_EMPTY; ++ fsg->next_buffhd_to_drain = bh->next; ++ ++ /* A short packet or an error ends everything */ ++ if (bh->outreq->actual != bh->outreq->length || ++ bh->outreq->status != 0) { ++ raise_exception(fsg, FSG_STATE_ABORT_BULK_OUT); ++ return -EINTR; ++ } ++ continue; ++ } ++ ++ /* Try to submit another request if we need one */ ++ bh = fsg->next_buffhd_to_fill; ++ if (bh->state == BUF_STATE_EMPTY && fsg->usb_amount_left > 0) { ++ amount = min(fsg->usb_amount_left, (u32) fsg->buf_size); ++ ++ /* amount is always divisible by 512, hence by ++ * the bulk-out maxpacket size */ ++ bh->outreq->length = bh->bulk_out_intended_length = ++ amount; ++ start_transfer(fsg, fsg->bulk_out, bh->outreq, ++ &bh->outreq_busy, &bh->state); ++ fsg->next_buffhd_to_fill = bh->next; ++ fsg->usb_amount_left -= amount; ++ continue; ++ } ++ ++ /* Otherwise wait for something to happen */ ++ rc = sleep_thread(fsg); ++ if (rc) ++ return rc; ++ } ++ return 0; ++} ++ ++ ++static int finish_reply(struct fsg_dev *fsg) ++{ ++ struct fsg_buffhd *bh = fsg->next_buffhd_to_fill; ++ int rc = 0; ++ ++ switch (fsg->data_dir) { ++ case DATA_DIR_NONE: ++ break; /* Nothing to send */ ++ ++ case DATA_DIR_UNKNOWN: ++ rc = -EINVAL; ++ break; ++ ++ /* All but the last buffer of data must have already been sent */ ++ case DATA_DIR_TO_HOST: ++ if (fsg->data_size == 0) ++ ; /* Nothing to send */ ++ ++ /* If there's no residue, simply send the last buffer */ ++ else if (fsg->residue == 0) { ++ start_transfer(fsg, fsg->bulk_in, bh->inreq, ++ &bh->inreq_busy, &bh->state); ++ fsg->next_buffhd_to_fill = bh->next; ++ } else { ++ start_transfer(fsg, fsg->bulk_in, bh->inreq, ++ &bh->inreq_busy, &bh->state); ++ fsg->next_buffhd_to_fill = bh->next; ++#if 0 ++ /* this is unnecessary, and was causing problems with MacOS */ ++ if (bh->inreq->length > 0) ++ write_zero(fsg); ++#endif ++ } ++ break; ++ ++ /* We have processed all we want from the data the host has sent. ++ * There may still be outstanding bulk-out requests. */ ++ case DATA_DIR_FROM_HOST: ++ if (fsg->residue == 0) ++ ; /* Nothing to receive */ ++ ++ /* Did the host stop sending unexpectedly early? */ ++ else if (fsg->short_packet_received) { ++ raise_exception(fsg, FSG_STATE_ABORT_BULK_OUT); ++ rc = -EINTR; ++ } ++ ++ /* We haven't processed all the incoming data. Even though ++ * we may be allowed to stall, doing so would cause a race. ++ * The controller may already have ACK'ed all the remaining ++ * bulk-out packets, in which case the host wouldn't see a ++ * STALL. Not realizing the endpoint was halted, it wouldn't ++ * clear the halt -- leading to problems later on. */ ++#if 0 ++ fsg_set_halt(fsg, fsg->bulk_out); ++ raise_exception(fsg, FSG_STATE_ABORT_BULK_OUT); ++ rc = -EINTR; ++#endif ++ ++ /* We can't stall. Read in the excess data and throw it ++ * all away. */ ++ else ++ rc = throw_away_data(fsg); ++ break; ++ } ++ return rc; ++} ++ ++ ++static int send_status(struct fsg_dev *fsg) ++{ ++ struct lun *curlun = fsg->curlun; ++ struct fsg_buffhd *bh; ++ int rc; ++ u8 status = USB_STATUS_PASS; ++ u32 sd, sdinfo = 0; ++ struct bulk_cs_wrap *csw; ++ ++ DBG(fsg, "send_status\n"); ++ /* Wait for the next buffer to become available */ ++ bh = fsg->next_buffhd_to_fill; ++ while (bh->state != BUF_STATE_EMPTY) { ++ rc = sleep_thread(fsg); ++ if (rc) ++ return rc; ++ } ++ ++ if (curlun) { ++ sd = curlun->sense_data; ++ sdinfo = curlun->sense_data_info; ++ } else if (fsg->bad_lun_okay) ++ sd = SS_NO_SENSE; ++ else ++ sd = SS_LOGICAL_UNIT_NOT_SUPPORTED; ++ ++ if (fsg->phase_error) { ++ DBG(fsg, "sending phase-error status\n"); ++ status = USB_STATUS_PHASE_ERROR; ++ sd = SS_INVALID_COMMAND; ++ } else if (sd != SS_NO_SENSE) { ++ DBG(fsg, "sending command-failure status\n"); ++ status = USB_STATUS_FAIL; ++ VDBG(fsg, " sense data: SK x%02x, ASC x%02x, ASCQ x%02x;" ++ " info x%x\n", ++ SK(sd), ASC(sd), ASCQ(sd), sdinfo); ++ } ++ ++ csw = bh->buf; ++ ++ /* Store and send the Bulk-only CSW */ ++ csw->Signature = __constant_cpu_to_le32(USB_BULK_CS_SIG); ++ csw->Tag = fsg->tag; ++ csw->Residue = cpu_to_le32(fsg->residue); ++ csw->Status = status; ++ ++ bh->inreq->length = USB_BULK_CS_WRAP_LEN; ++ start_transfer(fsg, fsg->bulk_in, bh->inreq, ++ &bh->inreq_busy, &bh->state); ++ ++ fsg->next_buffhd_to_fill = bh->next; ++ return 0; ++} ++ ++ ++/*-------------------------------------------------------------------------*/ ++ ++/* Check whether the command is properly formed and whether its data size ++ * and direction agree with the values we already have. */ ++static int check_command(struct fsg_dev *fsg, int cmnd_size, ++ enum data_direction data_dir, unsigned int mask, ++ int needs_medium, const char *name) ++{ ++ int i; ++ int lun = fsg->cmnd[1] >> 5; ++ static const char dirletter[4] = {'u', 'o', 'i', 'n'}; ++ char hdlen[20]; ++ struct lun *curlun; ++ ++ hdlen[0] = 0; ++ if (fsg->data_dir != DATA_DIR_UNKNOWN) ++ sprintf(hdlen, ", H%c=%u", dirletter[(int) fsg->data_dir], ++ fsg->data_size); ++ VDBG(fsg, "SCSI command: %s; Dc=%d, D%c=%u; Hc=%d%s\n", ++ name, cmnd_size, dirletter[(int) data_dir], ++ fsg->data_size_from_cmnd, fsg->cmnd_size, hdlen); ++ ++ /* We can't reply at all until we know the correct data direction ++ * and size. */ ++ if (fsg->data_size_from_cmnd == 0) ++ data_dir = DATA_DIR_NONE; ++ if (fsg->data_dir == DATA_DIR_UNKNOWN) { /* CB or CBI */ ++ fsg->data_dir = data_dir; ++ fsg->data_size = fsg->data_size_from_cmnd; ++ ++ } else { /* Bulk-only */ ++ if (fsg->data_size < fsg->data_size_from_cmnd) { ++ ++ /* Host data size < Device data size is a phase error. ++ * Carry out the command, but only transfer as much ++ * as we are allowed. */ ++ DBG(fsg, "phase error 1\n"); ++ fsg->data_size_from_cmnd = fsg->data_size; ++ fsg->phase_error = 1; ++ } ++ } ++ fsg->residue = fsg->usb_amount_left = fsg->data_size; ++ ++ /* Conflicting data directions is a phase error */ ++ if (fsg->data_dir != data_dir && fsg->data_size_from_cmnd > 0) { ++ fsg->phase_error = 1; ++ DBG(fsg, "phase error 2\n"); ++ return -EINVAL; ++ } ++ ++ /* Verify the length of the command itself */ ++ if (cmnd_size != fsg->cmnd_size) { ++ ++ /* Special case workaround: MS-Windows issues REQUEST SENSE ++ * with cbw->Length == 12 (it should be 6). */ ++ if (fsg->cmnd[0] == SC_REQUEST_SENSE && fsg->cmnd_size == 12) ++ cmnd_size = fsg->cmnd_size; ++ else { ++ fsg->phase_error = 1; ++ return -EINVAL; ++ } ++ } ++ ++ /* Check that the LUN values are consistent */ ++ if (fsg->lun != lun) ++ DBG(fsg, "using LUN %d from CBW, " ++ "not LUN %d from CDB\n", ++ fsg->lun, lun); ++ ++ /* Check the LUN */ ++ if (fsg->lun >= 0 && fsg->lun < fsg->nluns) { ++ fsg->curlun = curlun = &fsg->luns[fsg->lun]; ++ if (fsg->cmnd[0] != SC_REQUEST_SENSE) { ++ curlun->sense_data = SS_NO_SENSE; ++ curlun->sense_data_info = 0; ++ curlun->info_valid = 0; ++ } ++ } else { ++ fsg->curlun = curlun = NULL; ++ fsg->bad_lun_okay = 0; ++ ++ /* INQUIRY and REQUEST SENSE commands are explicitly allowed ++ * to use unsupported LUNs; all others may not. */ ++ if (fsg->cmnd[0] != SC_INQUIRY && ++ fsg->cmnd[0] != SC_REQUEST_SENSE) { ++ DBG(fsg, "unsupported LUN %d\n", fsg->lun); ++ return -EINVAL; ++ } ++ } ++ ++ /* If a unit attention condition exists, only INQUIRY and ++ * REQUEST SENSE commands are allowed; anything else must fail. */ ++ if (curlun && curlun->unit_attention_data != SS_NO_SENSE && ++ fsg->cmnd[0] != SC_INQUIRY && ++ fsg->cmnd[0] != SC_REQUEST_SENSE) { ++ curlun->sense_data = curlun->unit_attention_data; ++ curlun->unit_attention_data = SS_NO_SENSE; ++ return -EINVAL; ++ } ++ ++ /* Check that only command bytes listed in the mask are non-zero */ ++ fsg->cmnd[1] &= 0x1f; /* Mask away the LUN */ ++ for (i = 1; i < cmnd_size; ++i) { ++ if (fsg->cmnd[i] && !(mask & (1 << i))) { ++ if (curlun) ++ curlun->sense_data = SS_INVALID_FIELD_IN_CDB; ++ DBG(fsg, "SS_INVALID_FIELD_IN_CDB\n"); ++ return -EINVAL; ++ } ++ } ++ ++ /* If the medium isn't mounted and the command needs to access ++ * it, return an error. */ ++ if (curlun && !backing_file_is_open(curlun) && needs_medium) { ++ curlun->sense_data = SS_MEDIUM_NOT_PRESENT; ++ DBG(fsg, "SS_MEDIUM_NOT_PRESENT\n"); ++ return -EINVAL; ++ } ++ ++ return 0; ++} ++ ++ ++static int do_scsi_command(struct fsg_dev *fsg) ++{ ++ struct fsg_buffhd *bh; ++ int rc; ++ int reply = -EINVAL; ++ int i; ++ static char unknown[16]; ++ ++ dump_cdb(fsg); ++ ++ /* Wait for the next buffer to become available for data or status */ ++ bh = fsg->next_buffhd_to_drain = fsg->next_buffhd_to_fill; ++ while (bh->state != BUF_STATE_EMPTY) { ++ rc = sleep_thread(fsg); ++ if (rc) ++ return rc; ++ } ++ fsg->phase_error = 0; ++ fsg->short_packet_received = 0; ++ ++ down_read(&fsg->filesem); /* We're using the backing file */ ++ switch (fsg->cmnd[0]) { ++ ++ case SC_INQUIRY: ++ fsg->data_size_from_cmnd = fsg->cmnd[4]; ++ if ((reply = check_command(fsg, 6, DATA_DIR_TO_HOST, ++ (1<<4), 0, ++ "INQUIRY")) == 0) ++ reply = do_inquiry(fsg, bh); ++ break; ++ ++ case SC_MODE_SELECT_6: ++ fsg->data_size_from_cmnd = fsg->cmnd[4]; ++ if ((reply = check_command(fsg, 6, DATA_DIR_FROM_HOST, ++ (1<<1) | (1<<4), 0, ++ "MODE SELECT(6)")) == 0) ++ reply = do_mode_select(fsg, bh); ++ break; ++ ++ case SC_MODE_SELECT_10: ++ fsg->data_size_from_cmnd = get_be16(&fsg->cmnd[7]); ++ if ((reply = check_command(fsg, 10, DATA_DIR_FROM_HOST, ++ (1<<1) | (3<<7), 0, ++ "MODE SELECT(10)")) == 0) ++ reply = do_mode_select(fsg, bh); ++ break; ++ ++ case SC_MODE_SENSE_6: ++ fsg->data_size_from_cmnd = fsg->cmnd[4]; ++ if ((reply = check_command(fsg, 6, DATA_DIR_TO_HOST, ++ (1<<1) | (1<<2) | (1<<4), 0, ++ "MODE SENSE(6)")) == 0) ++ reply = do_mode_sense(fsg, bh); ++ break; ++ ++ case SC_MODE_SENSE_10: ++ fsg->data_size_from_cmnd = get_be16(&fsg->cmnd[7]); ++ if ((reply = check_command(fsg, 10, DATA_DIR_TO_HOST, ++ (1<<1) | (1<<2) | (3<<7), 0, ++ "MODE SENSE(10)")) == 0) ++ reply = do_mode_sense(fsg, bh); ++ break; ++ ++ case SC_PREVENT_ALLOW_MEDIUM_REMOVAL: ++ fsg->data_size_from_cmnd = 0; ++ if ((reply = check_command(fsg, 6, DATA_DIR_NONE, ++ (1<<4), 0, ++ "PREVENT-ALLOW MEDIUM REMOVAL")) == 0) ++ reply = do_prevent_allow(fsg); ++ break; ++ ++ case SC_READ_6: ++ i = fsg->cmnd[4]; ++ fsg->data_size_from_cmnd = (i == 0 ? 256 : i) << 9; ++ if ((reply = check_command(fsg, 6, DATA_DIR_TO_HOST, ++ (7<<1) | (1<<4), 1, ++ "READ(6)")) == 0) ++ reply = do_read(fsg); ++ break; ++ ++ case SC_READ_10: ++ fsg->data_size_from_cmnd = get_be16(&fsg->cmnd[7]) << 9; ++ if ((reply = check_command(fsg, 10, DATA_DIR_TO_HOST, ++ (1<<1) | (0xf<<2) | (3<<7), 1, ++ "READ(10)")) == 0) ++ reply = do_read(fsg); ++ break; ++ ++ case SC_READ_12: ++ fsg->data_size_from_cmnd = get_be32(&fsg->cmnd[6]) << 9; ++ if ((reply = check_command(fsg, 12, DATA_DIR_TO_HOST, ++ (1<<1) | (0xf<<2) | (0xf<<6), 1, ++ "READ(12)")) == 0) ++ reply = do_read(fsg); ++ break; ++ ++ case SC_READ_CAPACITY: ++ fsg->data_size_from_cmnd = 8; ++ if ((reply = check_command(fsg, 10, DATA_DIR_TO_HOST, ++ (0xf<<2) | (1<<8), 1, ++ "READ CAPACITY")) == 0) ++ reply = do_read_capacity(fsg, bh); ++ break; ++ ++ case SC_READ_FORMAT_CAPACITIES: ++ fsg->data_size_from_cmnd = get_be16(&fsg->cmnd[7]); ++ if ((reply = check_command(fsg, 10, DATA_DIR_TO_HOST, ++ (3<<7), 1, ++ "READ FORMAT CAPACITIES")) == 0) ++ reply = do_read_format_capacities(fsg, bh); ++ break; ++ ++ case SC_REQUEST_SENSE: ++ fsg->data_size_from_cmnd = fsg->cmnd[4]; ++ if ((reply = check_command(fsg, 6, DATA_DIR_TO_HOST, ++ (1<<4), 0, ++ "REQUEST SENSE")) == 0) ++ reply = do_request_sense(fsg, bh); ++ break; ++ ++ case SC_START_STOP_UNIT: ++ fsg->data_size_from_cmnd = 0; ++ if ((reply = check_command(fsg, 6, DATA_DIR_NONE, ++ (1<<1) | (1<<4), 0, ++ "START-STOP UNIT")) == 0) ++ reply = do_start_stop(fsg); ++ break; ++ ++ case SC_SYNCHRONIZE_CACHE: ++ fsg->data_size_from_cmnd = 0; ++ if ((reply = check_command(fsg, 10, DATA_DIR_NONE, ++ (0xf<<2) | (3<<7), 1, ++ "SYNCHRONIZE CACHE")) == 0) ++ reply = do_synchronize_cache(fsg); ++ break; ++ ++ case SC_TEST_UNIT_READY: ++ fsg->data_size_from_cmnd = 0; ++ reply = check_command(fsg, 6, DATA_DIR_NONE, ++ 0, 1, ++ "TEST UNIT READY"); ++ break; ++ ++ /* Although optional, this command is used by MS-Windows. We ++ * support a minimal version: BytChk must be 0. */ ++ case SC_VERIFY: ++ fsg->data_size_from_cmnd = 0; ++ if ((reply = check_command(fsg, 10, DATA_DIR_NONE, ++ (1<<1) | (0xf<<2) | (3<<7), 1, ++ "VERIFY")) == 0) ++ reply = do_verify(fsg); ++ break; ++ ++ case SC_WRITE_6: ++ i = fsg->cmnd[4]; ++ fsg->data_size_from_cmnd = (i == 0 ? 256 : i) << 9; ++ if ((reply = check_command(fsg, 6, DATA_DIR_FROM_HOST, ++ (7<<1) | (1<<4), 1, ++ "WRITE(6)")) == 0) ++ reply = do_write(fsg); ++ break; ++ ++ case SC_WRITE_10: ++ fsg->data_size_from_cmnd = get_be16(&fsg->cmnd[7]) << 9; ++ if ((reply = check_command(fsg, 10, DATA_DIR_FROM_HOST, ++ (1<<1) | (0xf<<2) | (3<<7), 1, ++ "WRITE(10)")) == 0) ++ reply = do_write(fsg); ++ break; ++ ++ case SC_WRITE_12: ++ fsg->data_size_from_cmnd = get_be32(&fsg->cmnd[6]) << 9; ++ if ((reply = check_command(fsg, 12, DATA_DIR_FROM_HOST, ++ (1<<1) | (0xf<<2) | (0xf<<6), 1, ++ "WRITE(12)")) == 0) ++ reply = do_write(fsg); ++ break; ++ ++ /* Some mandatory commands that we recognize but don't implement. ++ * They don't mean much in this setting. It's left as an exercise ++ * for anyone interested to implement RESERVE and RELEASE in terms ++ * of Posix locks. */ ++ case SC_FORMAT_UNIT: ++ case SC_RELEASE: ++ case SC_RESERVE: ++ case SC_SEND_DIAGNOSTIC: ++ /* Fall through */ ++ ++ default: ++ fsg->data_size_from_cmnd = 0; ++ sprintf(unknown, "Unknown x%02x", fsg->cmnd[0]); ++ if ((reply = check_command(fsg, fsg->cmnd_size, ++ DATA_DIR_UNKNOWN, 0xff, 0, unknown)) == 0) { ++ fsg->curlun->sense_data = SS_INVALID_COMMAND; ++ reply = -EINVAL; ++ } ++ break; ++ } ++ up_read(&fsg->filesem); ++ ++ VDBG(fsg, "reply: %d, fsg->data_size_from_cmnd: %d\n", ++ reply, fsg->data_size_from_cmnd); ++ if (reply == -EINTR || signal_pending(current)) ++ return -EINTR; ++ ++ /* Set up the single reply buffer for finish_reply() */ ++ if (reply == -EINVAL) ++ reply = 0; /* Error reply length */ ++ if (reply >= 0 && fsg->data_dir == DATA_DIR_TO_HOST) { ++ reply = min((u32) reply, fsg->data_size_from_cmnd); ++ bh->inreq->length = reply; ++ bh->state = BUF_STATE_FULL; ++ fsg->residue -= reply; ++ } /* Otherwise it's already set */ ++ ++ return 0; ++} ++ ++ ++/*-------------------------------------------------------------------------*/ ++ ++static int received_cbw(struct fsg_dev *fsg, struct fsg_buffhd *bh) ++{ ++ struct usb_request *req = bh->outreq; ++ struct bulk_cb_wrap *cbw = req->buf; ++ ++ /* Was this a real packet? */ ++ if (req->status) ++ return -EINVAL; ++ ++ /* Is the CBW valid? */ ++ if (req->actual != USB_BULK_CB_WRAP_LEN || ++ cbw->Signature != __constant_cpu_to_le32( ++ USB_BULK_CB_SIG)) { ++ DBG(fsg, "invalid CBW: len %u sig 0x%x\n", ++ req->actual, ++ le32_to_cpu(cbw->Signature)); ++ return -EINVAL; ++ } ++ ++ /* Is the CBW meaningful? */ ++ if (cbw->Lun >= MAX_LUNS || cbw->Flags & ~USB_BULK_IN_FLAG || ++ cbw->Length <= 0 || cbw->Length > MAX_COMMAND_SIZE) { ++ DBG(fsg, "non-meaningful CBW: lun = %u, flags = 0x%x, " ++ "cmdlen %u\n", ++ cbw->Lun, cbw->Flags, cbw->Length); ++ return -EINVAL; ++ } ++ ++ /* Save the command for later */ ++ fsg->cmnd_size = cbw->Length; ++ memcpy(fsg->cmnd, cbw->CDB, fsg->cmnd_size); ++ if (cbw->Flags & USB_BULK_IN_FLAG) ++ fsg->data_dir = DATA_DIR_TO_HOST; ++ else ++ fsg->data_dir = DATA_DIR_FROM_HOST; ++ fsg->data_size = le32_to_cpu(cbw->DataTransferLength); ++ if (fsg->data_size == 0) ++ fsg->data_dir = DATA_DIR_NONE; ++ fsg->lun = cbw->Lun; ++ fsg->tag = cbw->Tag; ++ return 0; ++} ++ ++ ++static int get_next_command(struct fsg_dev *fsg) ++{ ++ struct fsg_buffhd *bh; ++ int rc = 0; ++ ++ /* Wait for the next buffer to become available */ ++ bh = fsg->next_buffhd_to_fill; ++ while (bh->state != BUF_STATE_EMPTY) { ++ rc = sleep_thread(fsg); ++ if (rc) ++ return rc; ++ } ++ ++ /* Queue a request to read a Bulk-only CBW */ ++ set_bulk_out_req_length(fsg, bh, USB_BULK_CB_WRAP_LEN); ++ start_transfer(fsg, fsg->bulk_out, bh->outreq, ++ &bh->outreq_busy, &bh->state); ++ ++ /* We will drain the buffer in software, which means we ++ * can reuse it for the next filling. No need to advance ++ * next_buffhd_to_fill. */ ++ ++ /* Wait for the CBW to arrive */ ++ while (bh->state != BUF_STATE_FULL) { ++ rc = sleep_thread(fsg); ++ if (rc) ++ return rc; ++ } ++ smp_rmb(); ++ rc = received_cbw(fsg, bh); ++ bh->state = BUF_STATE_EMPTY; ++ ++ return rc; ++} ++ ++ ++/*-------------------------------------------------------------------------*/ ++ ++static int enable_endpoint(struct fsg_dev *fsg, struct usb_ep *ep, ++ const struct usb_endpoint_descriptor *d) ++{ ++ int rc; ++ ++ DBG(fsg, "usb_ep_enable %s\n", ep->name); ++ ep->driver_data = fsg; ++ rc = usb_ep_enable(ep, d); ++ if (rc) ++ ERROR(fsg, "can't enable %s, result %d\n", ep->name, rc); ++ return rc; ++} ++ ++static int alloc_request(struct fsg_dev *fsg, struct usb_ep *ep, ++ struct usb_request **preq) ++{ ++ *preq = usb_ep_alloc_request(ep, GFP_ATOMIC); ++ if (*preq) ++ return 0; ++ ERROR(fsg, "can't allocate request for %s\n", ep->name); ++ return -ENOMEM; ++} ++ ++/* ++ * Reset interface setting and re-init endpoint state (toggle etc). ++ * Call with altsetting < 0 to disable the interface. The only other ++ * available altsetting is 0, which enables the interface. ++ */ ++static int do_set_interface(struct fsg_dev *fsg, int altsetting) ++{ ++ struct usb_composite_dev *cdev = fsg->cdev; ++ int rc = 0; ++ int i; ++ const struct usb_endpoint_descriptor *d; ++ ++ if (fsg->running) ++ DBG(fsg, "reset interface\n"); ++ ++reset: ++ /* Deallocate the requests */ ++ for (i = 0; i < NUM_BUFFERS; ++i) { ++ struct fsg_buffhd *bh = &fsg->buffhds[i]; ++ ++ if (bh->inreq) { ++ usb_ep_free_request(fsg->bulk_in, bh->inreq); ++ bh->inreq = NULL; ++ } ++ if (bh->outreq) { ++ usb_ep_free_request(fsg->bulk_out, bh->outreq); ++ bh->outreq = NULL; ++ } ++ } ++ ++ /* Disable the endpoints */ ++ if (fsg->bulk_in_enabled) { ++ DBG(fsg, "usb_ep_disable %s\n", fsg->bulk_in->name); ++ usb_ep_disable(fsg->bulk_in); ++ fsg->bulk_in_enabled = 0; ++ } ++ if (fsg->bulk_out_enabled) { ++ DBG(fsg, "usb_ep_disable %s\n", fsg->bulk_out->name); ++ usb_ep_disable(fsg->bulk_out); ++ fsg->bulk_out_enabled = 0; ++ } ++ ++ fsg->running = 0; ++ if (altsetting < 0 || rc != 0) ++ return rc; ++ ++ DBG(fsg, "set interface %d\n", altsetting); ++ ++ /* Enable the endpoints */ ++ d = ep_desc(cdev->gadget, &fs_bulk_in_desc, &hs_bulk_in_desc); ++ if ((rc = enable_endpoint(fsg, fsg->bulk_in, d)) != 0) ++ goto reset; ++ fsg->bulk_in_enabled = 1; ++ ++ d = ep_desc(cdev->gadget, &fs_bulk_out_desc, &hs_bulk_out_desc); ++ if ((rc = enable_endpoint(fsg, fsg->bulk_out, d)) != 0) ++ goto reset; ++ fsg->bulk_out_enabled = 1; ++ fsg->bulk_out_maxpacket = le16_to_cpu(d->wMaxPacketSize); ++ ++ /* Allocate the requests */ ++ for (i = 0; i < NUM_BUFFERS; ++i) { ++ struct fsg_buffhd *bh = &fsg->buffhds[i]; ++ ++ rc = alloc_request(fsg, fsg->bulk_in, &bh->inreq); ++ if (rc != 0) ++ goto reset; ++ rc = alloc_request(fsg, fsg->bulk_out, &bh->outreq); ++ if (rc != 0) ++ goto reset; ++ bh->inreq->buf = bh->outreq->buf = bh->buf; ++ bh->inreq->context = bh->outreq->context = bh; ++ bh->inreq->complete = bulk_in_complete; ++ bh->outreq->complete = bulk_out_complete; ++ } ++ ++ fsg->running = 1; ++ for (i = 0; i < fsg->nluns; ++i) ++ fsg->luns[i].unit_attention_data = SS_RESET_OCCURRED; ++ ++ return rc; ++} ++ ++static void adjust_wake_lock(struct fsg_dev *fsg) ++{ ++ int ums_active = 0; ++ int i; ++ ++ spin_lock_irq(&fsg->lock); ++ ++ if (fsg->config) { ++ for (i = 0; i < fsg->nluns; ++i) { ++ if (backing_file_is_open(&fsg->luns[i])) ++ ums_active = 1; ++ } ++ } ++ ++ if (ums_active) ++ wake_lock(&fsg->wake_lock); ++ else ++ wake_unlock(&fsg->wake_lock); ++ ++ spin_unlock_irq(&fsg->lock); ++} ++ ++/* ++ * Change our operational configuration. This code must agree with the code ++ * that returns config descriptors, and with interface altsetting code. ++ * ++ * It's also responsible for power management interactions. Some ++ * configurations might not work with our current power sources. ++ * For now we just assume the gadget is always self-powered. ++ */ ++static int do_set_config(struct fsg_dev *fsg, u8 new_config) ++{ ++ int rc = 0; ++ ++ if (new_config == fsg->config) ++ return rc; ++ ++ /* Disable the single interface */ ++ if (fsg->config != 0) { ++ DBG(fsg, "reset config\n"); ++ fsg->config = 0; ++ rc = do_set_interface(fsg, -1); ++ } ++ ++ /* Enable the interface */ ++ if (new_config != 0) { ++ fsg->config = new_config; ++ rc = do_set_interface(fsg, 0); ++ if (rc != 0) ++ fsg->config = 0; /* Reset on errors */ ++ else ++ INFO(fsg, "config #%d\n", fsg->config); ++ } ++ ++ switch_set_state(&fsg->sdev, new_config); ++ adjust_wake_lock(fsg); ++ return rc; ++} ++ ++ ++/*-------------------------------------------------------------------------*/ ++ ++static void handle_exception(struct fsg_dev *fsg) ++{ ++ siginfo_t info; ++ int sig; ++ int i; ++ struct fsg_buffhd *bh; ++ enum fsg_state old_state; ++ u8 new_config; ++ struct lun *curlun; ++ int rc; ++ ++ DBG(fsg, "handle_exception state: %d\n", (int)fsg->state); ++ /* Clear the existing signals. Anything but SIGUSR1 is converted ++ * into a high-priority EXIT exception. */ ++ for (;;) { ++ sig = dequeue_signal_lock(current, ¤t->blocked, &info); ++ if (!sig) ++ break; ++ if (sig != SIGUSR1) { ++ if (fsg->state < FSG_STATE_EXIT) ++ DBG(fsg, "Main thread exiting on signal\n"); ++ raise_exception(fsg, FSG_STATE_EXIT); ++ } ++ } ++ ++ /* Clear out the controller's fifos */ ++ if (fsg->bulk_in_enabled) ++ usb_ep_fifo_flush(fsg->bulk_in); ++ if (fsg->bulk_out_enabled) ++ usb_ep_fifo_flush(fsg->bulk_out); ++ ++ /* Reset the I/O buffer states and pointers, the SCSI ++ * state, and the exception. Then invoke the handler. */ ++ spin_lock_irq(&fsg->lock); ++ ++ for (i = 0; i < NUM_BUFFERS; ++i) { ++ bh = &fsg->buffhds[i]; ++ bh->state = BUF_STATE_EMPTY; ++ } ++ fsg->next_buffhd_to_fill = fsg->next_buffhd_to_drain = ++ &fsg->buffhds[0]; ++ ++ new_config = fsg->new_config; ++ old_state = fsg->state; ++ ++ if (old_state == FSG_STATE_ABORT_BULK_OUT) ++ fsg->state = FSG_STATE_STATUS_PHASE; ++ else { ++ for (i = 0; i < fsg->nluns; ++i) { ++ curlun = &fsg->luns[i]; ++ curlun->prevent_medium_removal = 0; ++ curlun->sense_data = curlun->unit_attention_data = ++ SS_NO_SENSE; ++ curlun->sense_data_info = 0; ++ curlun->info_valid = 0; ++ } ++ fsg->state = FSG_STATE_IDLE; ++ } ++ spin_unlock_irq(&fsg->lock); ++ ++ /* Carry out any extra actions required for the exception */ ++ switch (old_state) { ++ default: ++ break; ++ ++ case FSG_STATE_ABORT_BULK_OUT: ++ DBG(fsg, "FSG_STATE_ABORT_BULK_OUT\n"); ++ spin_lock_irq(&fsg->lock); ++ if (fsg->state == FSG_STATE_STATUS_PHASE) ++ fsg->state = FSG_STATE_IDLE; ++ spin_unlock_irq(&fsg->lock); ++ break; ++ ++ case FSG_STATE_RESET: ++ /* really not much to do here */ ++ break; ++ ++ case FSG_STATE_CONFIG_CHANGE: ++ rc = do_set_config(fsg, new_config); ++ if (new_config == 0) { ++ /* We're using the backing file */ ++ down_read(&fsg->filesem); ++ fsync_all(fsg); ++ up_read(&fsg->filesem); ++ } ++ break; ++ ++ case FSG_STATE_EXIT: ++ case FSG_STATE_TERMINATED: ++ do_set_config(fsg, 0); /* Free resources */ ++ spin_lock_irq(&fsg->lock); ++ fsg->state = FSG_STATE_TERMINATED; /* Stop the thread */ ++ spin_unlock_irq(&fsg->lock); ++ break; ++ } ++} ++ ++ ++/*-------------------------------------------------------------------------*/ ++ ++static int fsg_main_thread(void *fsg_) ++{ ++ struct fsg_dev *fsg = fsg_; ++ ++ /* Allow the thread to be killed by a signal, but set the signal mask ++ * to block everything but INT, TERM, KILL, and USR1. */ ++ allow_signal(SIGINT); ++ allow_signal(SIGTERM); ++ allow_signal(SIGKILL); ++ allow_signal(SIGUSR1); ++ ++ /* Allow the thread to be frozen */ ++ set_freezable(); ++ ++ /* Arrange for userspace references to be interpreted as kernel ++ * pointers. That way we can pass a kernel pointer to a routine ++ * that expects a __user pointer and it will work okay. */ ++ set_fs(get_ds()); ++ ++ /* The main loop */ ++ while (fsg->state != FSG_STATE_TERMINATED) { ++ if (exception_in_progress(fsg) || signal_pending(current)) { ++ handle_exception(fsg); ++ continue; ++ } ++ ++ if (!fsg->running) { ++ sleep_thread(fsg); ++ continue; ++ } ++ ++ if (get_next_command(fsg)) ++ continue; ++ ++ spin_lock_irq(&fsg->lock); ++ if (!exception_in_progress(fsg)) ++ fsg->state = FSG_STATE_DATA_PHASE; ++ spin_unlock_irq(&fsg->lock); ++ ++ if (do_scsi_command(fsg) || finish_reply(fsg)) ++ continue; ++ ++ spin_lock_irq(&fsg->lock); ++ if (!exception_in_progress(fsg)) ++ fsg->state = FSG_STATE_STATUS_PHASE; ++ spin_unlock_irq(&fsg->lock); ++ ++ if (send_status(fsg)) ++ continue; ++ ++ spin_lock_irq(&fsg->lock); ++ if (!exception_in_progress(fsg)) ++ fsg->state = FSG_STATE_IDLE; ++ spin_unlock_irq(&fsg->lock); ++ } ++ ++ spin_lock_irq(&fsg->lock); ++ fsg->thread_task = NULL; ++ spin_unlock_irq(&fsg->lock); ++ ++ /* In case we are exiting because of a signal, unregister the ++ * gadget driver and close the backing file. */ ++ if (test_and_clear_bit(REGISTERED, &fsg->atomic_bitflags)) ++ close_all_backing_files(fsg); ++ ++ /* Let the unbind and cleanup routines know the thread has exited */ ++ complete_and_exit(&fsg->thread_notifier, 0); ++} ++ ++ ++/*-------------------------------------------------------------------------*/ ++ ++/* If the next two routines are called while the gadget is registered, ++ * the caller must own fsg->filesem for writing. */ ++ ++static int open_backing_file(struct fsg_dev *fsg, struct lun *curlun, ++ const char *filename) ++{ ++ int ro; ++ struct file *filp = NULL; ++ int rc = -EINVAL; ++ struct inode *inode = NULL; ++ loff_t size; ++ loff_t num_sectors; ++ ++ /* R/W if we can, R/O if we must */ ++ ro = curlun->ro; ++ if (!ro) { ++ filp = filp_open(filename, O_RDWR | O_LARGEFILE, 0); ++ if (-EROFS == PTR_ERR(filp)) ++ ro = 1; ++ } ++ if (ro) ++ filp = filp_open(filename, O_RDONLY | O_LARGEFILE, 0); ++ if (IS_ERR(filp)) { ++ LINFO(curlun, "unable to open backing file: %s\n", filename); ++ return PTR_ERR(filp); ++ } ++ ++ if (!(filp->f_mode & FMODE_WRITE)) ++ ro = 1; ++ ++ if (filp->f_path.dentry) ++ inode = filp->f_path.dentry->d_inode; ++ if (inode && S_ISBLK(inode->i_mode)) { ++ if (bdev_read_only(inode->i_bdev)) ++ ro = 1; ++ } else if (!inode || !S_ISREG(inode->i_mode)) { ++ LINFO(curlun, "invalid file type: %s\n", filename); ++ goto out; ++ } ++ ++ /* If we can't read the file, it's no good. ++ * If we can't write the file, use it read-only. */ ++ if (!filp->f_op || !(filp->f_op->read || filp->f_op->aio_read)) { ++ LINFO(curlun, "file not readable: %s\n", filename); ++ goto out; ++ } ++ if (!(filp->f_op->write || filp->f_op->aio_write)) ++ ro = 1; ++ ++ size = i_size_read(inode->i_mapping->host); ++ if (size < 0) { ++ LINFO(curlun, "unable to find file size: %s\n", filename); ++ rc = (int) size; ++ goto out; ++ } ++ num_sectors = size >> 9; /* File size in 512-byte sectors */ ++ if (num_sectors == 0) { ++ LINFO(curlun, "file too small: %s\n", filename); ++ rc = -ETOOSMALL; ++ goto out; ++ } ++ ++ get_file(filp); ++ curlun->ro = ro; ++ curlun->filp = filp; ++ curlun->file_length = size; ++ curlun->num_sectors = num_sectors; ++ LDBG(curlun, "open backing file: %s size: %lld num_sectors: %lld\n", ++ filename, size, num_sectors); ++ rc = 0; ++ adjust_wake_lock(fsg); ++ ++out: ++ filp_close(filp, current->files); ++ return rc; ++} ++ ++ ++static void close_backing_file(struct fsg_dev *fsg, struct lun *curlun) ++{ ++ if (curlun->filp) { ++ int rc; ++ ++ /* ++ * XXX: San: Ugly hack here added to ensure that ++ * our pages get synced to disk. ++ * Also drop caches here just to be extra-safe ++ */ ++ rc = vfs_fsync(curlun->filp, curlun->filp->f_path.dentry, 1); ++ if (rc < 0) ++ printk(KERN_ERR "ums: Error syncing data (%d)\n", rc); ++ /* drop_pagecache and drop_slab are no longer available */ ++ /* drop_pagecache(); */ ++ /* drop_slab(); */ ++ ++ LDBG(curlun, "close backing file\n"); ++ fput(curlun->filp); ++ curlun->filp = NULL; ++ adjust_wake_lock(fsg); ++ } ++} ++ ++static void close_all_backing_files(struct fsg_dev *fsg) ++{ ++ int i; ++ ++ for (i = 0; i < fsg->nluns; ++i) ++ close_backing_file(fsg, &fsg->luns[i]); ++} ++ ++static ssize_t show_file(struct device *dev, struct device_attribute *attr, ++ char *buf) ++{ ++ struct lun *curlun = dev_to_lun(dev); ++ struct fsg_dev *fsg = dev_get_drvdata(dev); ++ char *p; ++ ssize_t rc; ++ ++ down_read(&fsg->filesem); ++ if (backing_file_is_open(curlun)) { /* Get the complete pathname */ ++ p = d_path(&curlun->filp->f_path, buf, PAGE_SIZE - 1); ++ if (IS_ERR(p)) ++ rc = PTR_ERR(p); ++ else { ++ rc = strlen(p); ++ memmove(buf, p, rc); ++ buf[rc] = '\n'; /* Add a newline */ ++ buf[++rc] = 0; ++ } ++ } else { /* No file, return 0 bytes */ ++ *buf = 0; ++ rc = 0; ++ } ++ up_read(&fsg->filesem); ++ return rc; ++} ++ ++static ssize_t store_file(struct device *dev, struct device_attribute *attr, ++ const char *buf, size_t count) ++{ ++ struct lun *curlun = dev_to_lun(dev); ++ struct fsg_dev *fsg = dev_get_drvdata(dev); ++ int rc = 0; ++ ++ DBG(fsg, "store_file: \"%s\"\n", buf); ++#if 0 ++ /* disabled because we need to allow closing the backing file if the media was removed */ ++ if (curlun->prevent_medium_removal && backing_file_is_open(curlun)) { ++ LDBG(curlun, "eject attempt prevented\n"); ++ return -EBUSY; /* "Door is locked" */ ++ } ++#endif ++ ++ /* Remove a trailing newline */ ++ if (count > 0 && buf[count-1] == '\n') ++ ((char *) buf)[count-1] = 0; ++ ++ /* Eject current medium */ ++ down_write(&fsg->filesem); ++ if (backing_file_is_open(curlun)) { ++ close_backing_file(fsg, curlun); ++ curlun->unit_attention_data = SS_MEDIUM_NOT_PRESENT; ++ } ++ ++ /* Load new medium */ ++ if (count > 0 && buf[0]) { ++ rc = open_backing_file(fsg, curlun, buf); ++ if (rc == 0) ++ curlun->unit_attention_data = ++ SS_NOT_READY_TO_READY_TRANSITION; ++ } ++ up_write(&fsg->filesem); ++ return (rc < 0 ? rc : count); ++} ++ ++ ++static DEVICE_ATTR(file, 0444, show_file, store_file); ++ ++/*-------------------------------------------------------------------------*/ ++ ++static void fsg_release(struct kref *ref) ++{ ++ struct fsg_dev *fsg = container_of(ref, struct fsg_dev, ref); ++ ++ kfree(fsg->luns); ++ kfree(fsg); ++} ++ ++static void lun_release(struct device *dev) ++{ ++ struct fsg_dev *fsg = dev_get_drvdata(dev); ++ ++ kref_put(&fsg->ref, fsg_release); ++} ++ ++ ++/*-------------------------------------------------------------------------*/ ++ ++static int __init fsg_alloc(void) ++{ ++ struct fsg_dev *fsg; ++ ++ fsg = kzalloc(sizeof *fsg, GFP_KERNEL); ++ if (!fsg) ++ return -ENOMEM; ++ spin_lock_init(&fsg->lock); ++ init_rwsem(&fsg->filesem); ++ kref_init(&fsg->ref); ++ init_completion(&fsg->thread_notifier); ++ ++ the_fsg = fsg; ++ return 0; ++} ++ ++static ssize_t print_switch_name(struct switch_dev *sdev, char *buf) ++{ ++ return sprintf(buf, "%s\n", DRIVER_NAME); ++} ++ ++static ssize_t print_switch_state(struct switch_dev *sdev, char *buf) ++{ ++ struct fsg_dev *fsg = container_of(sdev, struct fsg_dev, sdev); ++ return sprintf(buf, "%s\n", (fsg->config ? "online" : "offline")); ++} ++ ++static void ++fsg_function_unbind(struct usb_configuration *c, struct usb_function *f) ++{ ++ struct fsg_dev *fsg = func_to_dev(f); ++ int i; ++ struct lun *curlun; ++ ++ DBG(fsg, "fsg_function_unbind\n"); ++ clear_bit(REGISTERED, &fsg->atomic_bitflags); ++ ++ /* Unregister the sysfs attribute files and the LUNs */ ++ for (i = 0; i < fsg->nluns; ++i) { ++ curlun = &fsg->luns[i]; ++ if (curlun->registered) { ++ device_remove_file(&curlun->dev, &dev_attr_file); ++ device_unregister(&curlun->dev); ++ curlun->registered = 0; ++ } ++ } ++ ++ /* If the thread isn't already dead, tell it to exit now */ ++ if (fsg->state != FSG_STATE_TERMINATED) { ++ raise_exception(fsg, FSG_STATE_EXIT); ++ wait_for_completion(&fsg->thread_notifier); ++ ++ /* The cleanup routine waits for this completion also */ ++ complete(&fsg->thread_notifier); ++ } ++ ++ /* Free the data buffers */ ++ for (i = 0; i < NUM_BUFFERS; ++i) ++ kfree(fsg->buffhds[i].buf); ++} ++ ++static int __init ++fsg_function_bind(struct usb_configuration *c, struct usb_function *f) ++{ ++ struct usb_composite_dev *cdev = c->cdev; ++ struct fsg_dev *fsg = func_to_dev(f); ++ int rc; ++ int i; ++ int id; ++ struct lun *curlun; ++ struct usb_ep *ep; ++ char *pathbuf, *p; ++ ++ fsg->cdev = cdev; ++ DBG(fsg, "fsg_function_bind\n"); ++ ++ dev_attr_file.attr.mode = 0644; ++ ++ /* Find out how many LUNs there should be */ ++ i = fsg->nluns; ++ if (i == 0) ++ i = 1; ++ if (i > MAX_LUNS) { ++ ERROR(fsg, "invalid number of LUNs: %d\n", i); ++ rc = -EINVAL; ++ goto out; ++ } ++ ++ /* Create the LUNs, open their backing files, and register the ++ * LUN devices in sysfs. */ ++ fsg->luns = kzalloc(i * sizeof(struct lun), GFP_KERNEL); ++ if (!fsg->luns) { ++ rc = -ENOMEM; ++ goto out; ++ } ++ fsg->nluns = i; ++ ++ for (i = 0; i < fsg->nluns; ++i) { ++ curlun = &fsg->luns[i]; ++ curlun->ro = 0; ++ curlun->dev.release = lun_release; ++ curlun->dev.parent = &cdev->gadget->dev; ++ dev_set_drvdata(&curlun->dev, fsg); ++ snprintf(curlun->dev.bus_id, BUS_ID_SIZE, ++ "lun%d", i); ++ ++ rc = device_register(&curlun->dev); ++ if (rc != 0) { ++ INFO(fsg, "failed to register LUN%d: %d\n", i, rc); ++ goto out; ++ } ++ rc = device_create_file(&curlun->dev, &dev_attr_file); ++ if (rc != 0) { ++ ERROR(fsg, "device_create_file failed: %d\n", rc); ++ device_unregister(&curlun->dev); ++ goto out; ++ } ++ curlun->registered = 1; ++ kref_get(&fsg->ref); ++ } ++ ++ /* allocate interface ID(s) */ ++ id = usb_interface_id(c, f); ++ if (id < 0) ++ return id; ++ intf_desc.bInterfaceNumber = id; ++ ++ ep = usb_ep_autoconfig(cdev->gadget, &fs_bulk_in_desc); ++ if (!ep) ++ goto autoconf_fail; ++ ep->driver_data = fsg; /* claim the endpoint */ ++ fsg->bulk_in = ep; ++ ++ ep = usb_ep_autoconfig(cdev->gadget, &fs_bulk_out_desc); ++ if (!ep) ++ goto autoconf_fail; ++ ep->driver_data = fsg; /* claim the endpoint */ ++ fsg->bulk_out = ep; ++ ++ rc = -ENOMEM; ++ ++ if (gadget_is_dualspeed(cdev->gadget)) { ++ /* Assume endpoint addresses are the same for both speeds */ ++ hs_bulk_in_desc.bEndpointAddress = ++ fs_bulk_in_desc.bEndpointAddress; ++ hs_bulk_out_desc.bEndpointAddress = ++ fs_bulk_out_desc.bEndpointAddress; ++ ++ f->hs_descriptors = hs_function; ++ } ++ ++ /* Allocate the data buffers */ ++ for (i = 0; i < NUM_BUFFERS; ++i) { ++ struct fsg_buffhd *bh = &fsg->buffhds[i]; ++ ++ /* Allocate for the bulk-in endpoint. We assume that ++ * the buffer will also work with the bulk-out (and ++ * interrupt-in) endpoint. */ ++ bh->buf = kmalloc(fsg->buf_size, GFP_KERNEL); ++ if (!bh->buf) ++ goto out; ++ bh->next = bh + 1; ++ } ++ fsg->buffhds[NUM_BUFFERS - 1].next = &fsg->buffhds[0]; ++ ++ fsg->thread_task = kthread_create(fsg_main_thread, fsg, ++ shortname); ++ if (IS_ERR(fsg->thread_task)) { ++ rc = PTR_ERR(fsg->thread_task); ++ ERROR(fsg, "kthread_create failed: %d\n", rc); ++ goto out; ++ } ++ ++ INFO(fsg, "Number of LUNs=%d\n", fsg->nluns); ++ ++ pathbuf = kmalloc(PATH_MAX, GFP_KERNEL); ++ for (i = 0; i < fsg->nluns; ++i) { ++ curlun = &fsg->luns[i]; ++ if (backing_file_is_open(curlun)) { ++ p = NULL; ++ if (pathbuf) { ++ p = d_path(&curlun->filp->f_path, ++ pathbuf, PATH_MAX); ++ if (IS_ERR(p)) ++ p = NULL; ++ } ++ LINFO(curlun, "ro=%d, file: %s\n", ++ curlun->ro, (p ? p : "(error)")); ++ } ++ } ++ kfree(pathbuf); ++ ++ set_bit(REGISTERED, &fsg->atomic_bitflags); ++ ++ /* Tell the thread to start working */ ++ wake_up_process(fsg->thread_task); ++ return 0; ++ ++autoconf_fail: ++ ERROR(fsg, "unable to autoconfigure all endpoints\n"); ++ rc = -ENOTSUPP; ++ ++out: ++ DBG(fsg, "fsg_function_bind failed: %d\n", rc); ++ fsg->state = FSG_STATE_TERMINATED; /* The thread is dead */ ++ fsg_function_unbind(c, f); ++ close_all_backing_files(fsg); ++ return rc; ++} ++ ++static int fsg_function_set_alt(struct usb_function *f, ++ unsigned intf, unsigned alt) ++{ ++ struct fsg_dev *fsg = func_to_dev(f); ++ DBG(fsg, "fsg_function_set_alt intf: %d alt: %d\n", intf, alt); ++ fsg->new_config = 1; ++ raise_exception(fsg, FSG_STATE_CONFIG_CHANGE); ++ return 0; ++} ++ ++static void fsg_function_disable(struct usb_function *f) ++{ ++ struct fsg_dev *fsg = func_to_dev(f); ++ DBG(fsg, "fsg_function_disable\n"); ++ fsg->new_config = 0; ++ raise_exception(fsg, FSG_STATE_CONFIG_CHANGE); ++} ++ ++int __init mass_storage_function_add(struct usb_composite_dev *cdev, ++ struct usb_configuration *c, int nluns) ++{ ++ int rc; ++ struct fsg_dev *fsg; ++ ++ printk(KERN_INFO "mass_storage_function_add\n"); ++ rc = fsg_alloc(); ++ if (rc) ++ return rc; ++ fsg = the_fsg; ++ fsg->nluns = nluns; ++ ++ spin_lock_init(&fsg->lock); ++ init_rwsem(&fsg->filesem); ++ kref_init(&fsg->ref); ++ init_completion(&fsg->thread_notifier); ++ ++ the_fsg->buf_size = BULK_BUFFER_SIZE; ++ the_fsg->sdev.name = DRIVER_NAME; ++ the_fsg->sdev.print_name = print_switch_name; ++ the_fsg->sdev.print_state = print_switch_state; ++ rc = switch_dev_register(&the_fsg->sdev); ++ if (rc < 0) ++ goto err_switch_dev_register; ++ ++ wake_lock_init(&the_fsg->wake_lock, WAKE_LOCK_SUSPEND, ++ "usb_mass_storage"); ++ ++ fsg->cdev = cdev; ++ fsg->function.name = shortname; ++ fsg->function.descriptors = fs_function; ++ fsg->function.bind = fsg_function_bind; ++ fsg->function.unbind = fsg_function_unbind; ++ fsg->function.setup = fsg_function_setup; ++ fsg->function.set_alt = fsg_function_set_alt; ++ fsg->function.disable = fsg_function_disable; ++ ++ rc = usb_add_function(c, &fsg->function); ++ if (rc != 0) ++ goto err_usb_add_function; ++ ++ return 0; ++ ++err_usb_add_function: ++ switch_dev_unregister(&the_fsg->sdev); ++err_switch_dev_register: ++ kref_put(&the_fsg->ref, fsg_release); ++ ++ return rc; ++} +--- /dev/null ++++ b/drivers/usb/gadget/f_mass_storage.h +@@ -0,0 +1,52 @@ ++/* ++ * drivers/usb/gadget/f_mass_storage.h ++ * ++ * Function Driver for USB Mass Storage ++ * ++ * Copyright (C) 2008 Google, Inc. ++ * Author: Mike Lockwood <lockwood@android.com> ++ * ++ * Based heavily on the file_storage gadget driver in ++ * drivers/usb/gadget/file_storage.c and licensed under the same terms: ++ * ++ * Copyright (C) 2003-2007 Alan Stern ++ * All rights reserved. ++ * ++ * Redistribution and use in source and binary forms, with or without ++ * modification, are permitted provided that the following conditions ++ * are met: ++ * 1. Redistributions of source code must retain the above copyright ++ * notice, this list of conditions, and the following disclaimer, ++ * without modification. ++ * 2. Redistributions in binary form must reproduce the above copyright ++ * notice, this list of conditions and the following disclaimer in the ++ * documentation and/or other materials provided with the distribution. ++ * 3. The names of the above-listed copyright holders may not be used ++ * to endorse or promote products derived from this software without ++ * specific prior written permission. ++ * ++ * ALTERNATIVELY, this software may be distributed under the terms of the ++ * GNU General Public License ("GPL") as published by the Free Software ++ * Foundation, either version 2 of that License or (at your option) any ++ * later version. ++ * ++ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS ++ * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, ++ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR ++ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR ++ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, ++ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, ++ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR ++ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF ++ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING ++ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS ++ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ++ */ ++ ++#ifndef __F_MASS_STORAGE_H ++#define __F_MASS_STORAGE_H ++ ++int mass_storage_function_add(struct usb_composite_dev *cdev, ++ struct usb_configuration *c, int nluns); ++ ++#endif /* __F_MASS_STORAGE_H */ +--- /dev/null ++++ b/include/linux/usb/android.h +@@ -0,0 +1,40 @@ ++/* ++ * Platform data for Android USB ++ * ++ * Copyright (C) 2008 Google, Inc. ++ * Author: Mike Lockwood <lockwood@android.com> ++ * ++ * This software is licensed under the terms of the GNU General Public ++ * License version 2, as published by the Free Software Foundation, and ++ * may be copied, distributed, and modified under those terms. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ * ++ */ ++#ifndef __LINUX_USB_ANDROID_H ++#define __LINUX_USB_ANDROID_H ++ ++struct android_usb_platform_data { ++ /* USB device descriptor fields */ ++ __u16 vendor_id; ++ ++ /* Default product ID. */ ++ __u16 product_id; ++ ++ /* Product ID when adb is enabled. */ ++ __u16 adb_product_id; ++ ++ __u16 version; ++ ++ char *product_name; ++ char *manufacturer_name; ++ char *serial_number; ++ ++ /* number of LUNS for mass storage function */ ++ int nluns; ++}; ++ ++#endif /* __LINUX_USB_ANDROID_H */ diff --git a/target/linux/goldfish/patches-2.6.30/0105-block-block_dump-Add-number-of-sectors-to-debug-ou.patch b/target/linux/goldfish/patches-2.6.30/0105-block-block_dump-Add-number-of-sectors-to-debug-ou.patch new file mode 100644 index 0000000000..c057e7b17e --- /dev/null +++ b/target/linux/goldfish/patches-2.6.30/0105-block-block_dump-Add-number-of-sectors-to-debug-ou.patch @@ -0,0 +1,27 @@ +From 4d3a01ba872f67bae704e37bf888c38fa83be759 Mon Sep 17 00:00:00 2001 +From: San Mehat <san@android.com> +Date: Sat, 21 Mar 2009 18:48:05 -0700 +Subject: [PATCH 105/134] block: block_dump: Add number of sectors to debug output + +Signed-off-by: San Mehat <san@android.com> +--- + block/blk-core.c | 5 +++-- + 1 files changed, 3 insertions(+), 2 deletions(-) + +--- a/block/blk-core.c ++++ b/block/blk-core.c +@@ -1558,11 +1558,12 @@ void submit_bio(int rw, struct bio *bio) + + if (unlikely(block_dump)) { + char b[BDEVNAME_SIZE]; +- printk(KERN_DEBUG "%s(%d): %s block %Lu on %s\n", ++ printk(KERN_DEBUG "%s(%d): %s block %Lu on %s (%u sectors)\n", + current->comm, task_pid_nr(current), + (rw & WRITE) ? "WRITE" : "READ", + (unsigned long long)bio->bi_sector, +- bdevname(bio->bi_bdev, b)); ++ bdevname(bio->bi_bdev, b), ++ count); + } + } + diff --git a/target/linux/goldfish/patches-2.6.30/0108-mmc-sd-Remove-debugging-printk.patch b/target/linux/goldfish/patches-2.6.30/0108-mmc-sd-Remove-debugging-printk.patch new file mode 100644 index 0000000000..f9efdb35a0 --- /dev/null +++ b/target/linux/goldfish/patches-2.6.30/0108-mmc-sd-Remove-debugging-printk.patch @@ -0,0 +1,20 @@ +From 700cfcab7eee4a822be3fe0c8cfd77caac10bfed Mon Sep 17 00:00:00 2001 +From: Dima Zavin <dima@android.com> +Date: Wed, 25 Mar 2009 21:29:45 -0700 +Subject: [PATCH 108/134] mmc: sd: Remove debugging printk + +Signed-off-by: Dima Zavin <dima@android.com> +--- + drivers/mmc/core/sd.c | 1 - + 1 files changed, 0 insertions(+), 1 deletions(-) + +--- a/drivers/mmc/core/sd.c ++++ b/drivers/mmc/core/sd.c +@@ -574,7 +574,6 @@ static void mmc_sd_detect(struct mmc_hos + #ifdef CONFIG_MMC_PARANOID_SD_INIT + while(retries) { + err = mmc_send_status(host->card, NULL); +- printk("%s(%s): err = %d\n", __func__, mmc_hostname(host), err); + if (err) { + retries--; + udelay(5); diff --git a/target/linux/goldfish/patches-2.6.30/0109-Revert-printk-remove-unused-code-from-kernel-print.patch b/target/linux/goldfish/patches-2.6.30/0109-Revert-printk-remove-unused-code-from-kernel-print.patch new file mode 100644 index 0000000000..26745a1168 --- /dev/null +++ b/target/linux/goldfish/patches-2.6.30/0109-Revert-printk-remove-unused-code-from-kernel-print.patch @@ -0,0 +1,58 @@ +From fca2519ebf25db61da132932eb3fffeaa1974f43 Mon Sep 17 00:00:00 2001 +From: =?utf-8?q?Arve=20Hj=C3=B8nnev=C3=A5g?= <arve@android.com> +Date: Thu, 15 Jan 2009 19:07:27 -0800 +Subject: [PATCH 109/134] Revert "printk: remove unused code from kernel/printk.c" + +This reverts commit acff181d3574244e651913df77332e897b88bff4. +--- + kernel/printk.c | 39 +++++++++++++++++++++++++++++++++++++++ + 1 files changed, 39 insertions(+), 0 deletions(-) + +--- a/kernel/printk.c ++++ b/kernel/printk.c +@@ -255,6 +255,45 @@ static inline void boot_delay_msec(void) + #endif + + /* ++ * Return the number of unread characters in the log buffer. ++ */ ++static int log_buf_get_len(void) ++{ ++ return logged_chars; ++} ++ ++/* ++ * Copy a range of characters from the log buffer. ++ */ ++int log_buf_copy(char *dest, int idx, int len) ++{ ++ int ret, max; ++ bool took_lock = false; ++ ++ if (!oops_in_progress) { ++ spin_lock_irq(&logbuf_lock); ++ took_lock = true; ++ } ++ ++ max = log_buf_get_len(); ++ if (idx < 0 || idx >= max) { ++ ret = -1; ++ } else { ++ if (len > max) ++ len = max; ++ ret = len; ++ idx += (log_end - max); ++ while (len-- > 0) ++ dest[len] = LOG_BUF(idx + len); ++ } ++ ++ if (took_lock) ++ spin_unlock_irq(&logbuf_lock); ++ ++ return ret; ++} ++ ++/* + * Commands to do_syslog: + * + * 0 -- Close the log. Currently a NOP. diff --git a/target/linux/goldfish/patches-2.6.30/0110-printk-Fix-log_buf_copy-termination.patch b/target/linux/goldfish/patches-2.6.30/0110-printk-Fix-log_buf_copy-termination.patch new file mode 100644 index 0000000000..3956090cbf --- /dev/null +++ b/target/linux/goldfish/patches-2.6.30/0110-printk-Fix-log_buf_copy-termination.patch @@ -0,0 +1,24 @@ +From e500cd364086cfc018b100d08c97b2fdf229d029 Mon Sep 17 00:00:00 2001 +From: =?utf-8?q?Arve=20Hj=C3=B8nnev=C3=A5g?= <arve@android.com> +Date: Mon, 14 Apr 2008 21:35:25 -0700 +Subject: [PATCH 110/134] printk: Fix log_buf_copy termination. + +If idx was non-zero and the log had wrapped, len did not get truncated +to stop at the last byte written to the log. +--- + kernel/printk.c | 4 ++-- + 1 files changed, 2 insertions(+), 2 deletions(-) + +--- a/kernel/printk.c ++++ b/kernel/printk.c +@@ -279,8 +279,8 @@ int log_buf_copy(char *dest, int idx, in + if (idx < 0 || idx >= max) { + ret = -1; + } else { +- if (len > max) +- len = max; ++ if (len > max - idx) ++ len = max - idx; + ret = len; + idx += (log_end - max); + while (len-- > 0) diff --git a/target/linux/goldfish/patches-2.6.30/0118--ARM-goldfish-Add-goldfish-platform.patch b/target/linux/goldfish/patches-2.6.30/0118--ARM-goldfish-Add-goldfish-platform.patch new file mode 100644 index 0000000000..21e6716d80 --- /dev/null +++ b/target/linux/goldfish/patches-2.6.30/0118--ARM-goldfish-Add-goldfish-platform.patch @@ -0,0 +1,2127 @@ +From 7cc9c853cf4657bc971a3bf8736fa0412f23eea2 Mon Sep 17 00:00:00 2001 +From: Mike A. Chan <mikechan@google.com> +Date: Tue, 14 Oct 2008 19:46:11 -0700 +Subject: [PATCH 118/134] [ARM] goldfish: Add goldfish platform. +MIME-Version: 1.0 +Content-Type: text/plain; charset=utf-8 +Content-Transfer-Encoding: 8bit + +Signed-off-by: Mike A. Chan <mikechan@google.com> +Signed-off-by: Arve HjønnevÃ¥g <arve@android.com> +--- + arch/arm/Kconfig | 10 + + arch/arm/Makefile | 1 + + arch/arm/configs/goldfish_defconfig | 1166 +++++++++++++++++++++ + arch/arm/mach-goldfish/Kconfig | 11 + + arch/arm/mach-goldfish/Makefile | 9 + + arch/arm/mach-goldfish/Makefile.boot | 4 + + arch/arm/mach-goldfish/board-goldfish.c | 122 +++ + arch/arm/mach-goldfish/include/mach/dma.h | 1 + + arch/arm/mach-goldfish/include/mach/entry-macro.S | 34 + + arch/arm/mach-goldfish/include/mach/hardware.h | 44 + + arch/arm/mach-goldfish/include/mach/io.h | 24 + + arch/arm/mach-goldfish/include/mach/irqs.h | 24 + + arch/arm/mach-goldfish/include/mach/memory.h | 35 + + arch/arm/mach-goldfish/include/mach/system.h | 30 + + arch/arm/mach-goldfish/include/mach/timer.h | 28 + + arch/arm/mach-goldfish/include/mach/timex.h | 24 + + arch/arm/mach-goldfish/include/mach/uncompress.h | 40 + + arch/arm/mach-goldfish/include/mach/vmalloc.h | 21 + + arch/arm/mach-goldfish/pdev_bus.c | 222 ++++ + arch/arm/mach-goldfish/timer.c | 147 +++ + 20 files changed, 1997 insertions(+), 0 deletions(-) + create mode 100644 arch/arm/configs/goldfish_defconfig + create mode 100644 arch/arm/mach-goldfish/Kconfig + create mode 100644 arch/arm/mach-goldfish/Makefile + create mode 100644 arch/arm/mach-goldfish/Makefile.boot + create mode 100644 arch/arm/mach-goldfish/board-goldfish.c + create mode 100644 arch/arm/mach-goldfish/include/mach/dma.h + create mode 100644 arch/arm/mach-goldfish/include/mach/entry-macro.S + create mode 100644 arch/arm/mach-goldfish/include/mach/hardware.h + create mode 100644 arch/arm/mach-goldfish/include/mach/io.h + create mode 100644 arch/arm/mach-goldfish/include/mach/irqs.h + create mode 100644 arch/arm/mach-goldfish/include/mach/memory.h + create mode 100644 arch/arm/mach-goldfish/include/mach/system.h + create mode 100644 arch/arm/mach-goldfish/include/mach/timer.h + create mode 100644 arch/arm/mach-goldfish/include/mach/timex.h + create mode 100644 arch/arm/mach-goldfish/include/mach/uncompress.h + create mode 100644 arch/arm/mach-goldfish/include/mach/vmalloc.h + create mode 100644 arch/arm/mach-goldfish/pdev_bus.c + create mode 100644 arch/arm/mach-goldfish/timer.c + +--- a/arch/arm/Kconfig ++++ b/arch/arm/Kconfig +@@ -206,6 +206,14 @@ config ARCH_AAEC2000 + help + This enables support for systems based on the Agilent AAEC-2000 + ++config ARCH_GOLDFISH ++ bool "Goldfish" ++ select CPU_ARM926T ++ select GENERIC_TIME ++ select GENERIC_CLOCKEVENTS ++ help ++ Support for Goldfish Virtual Platform. ++ + config ARCH_INTEGRATOR + bool "ARM Ltd. Integrator family" + select ARM_AMBA +@@ -620,6 +628,8 @@ config ARCH_W90X900 + + endchoice + ++source "arch/arm/mach-goldfish/Kconfig" ++ + source "arch/arm/mach-clps711x/Kconfig" + + source "arch/arm/mach-ep93xx/Kconfig" +--- a/arch/arm/Makefile ++++ b/arch/arm/Makefile +@@ -138,6 +138,7 @@ endif + machine-$(CONFIG_ARCH_IMX) := imx + machine-$(CONFIG_ARCH_H720X) := h720x + machine-$(CONFIG_ARCH_AAEC2000) := aaec2000 ++ machine-$(CONFIG_ARCH_GOLDFISH) := goldfish + machine-$(CONFIG_ARCH_REALVIEW) := realview + machine-$(CONFIG_ARCH_AT91) := at91 + machine-$(CONFIG_ARCH_EP93XX) := ep93xx +--- /dev/null ++++ b/arch/arm/configs/goldfish_defconfig +@@ -0,0 +1,1166 @@ ++# ++# Automatically generated make config: don't edit ++# Linux kernel version: 2.6.29 ++# Wed Apr 8 20:40:44 2009 ++# ++CONFIG_ARM=y ++CONFIG_SYS_SUPPORTS_APM_EMULATION=y ++# CONFIG_GENERIC_GPIO is not set ++CONFIG_GENERIC_TIME=y ++CONFIG_GENERIC_CLOCKEVENTS=y ++CONFIG_MMU=y ++# CONFIG_NO_IOPORT is not set ++CONFIG_GENERIC_HARDIRQS=y ++CONFIG_STACKTRACE_SUPPORT=y ++CONFIG_HAVE_LATENCYTOP_SUPPORT=y ++CONFIG_LOCKDEP_SUPPORT=y ++CONFIG_TRACE_IRQFLAGS_SUPPORT=y ++CONFIG_HARDIRQS_SW_RESEND=y ++CONFIG_GENERIC_IRQ_PROBE=y ++CONFIG_RWSEM_GENERIC_SPINLOCK=y ++# CONFIG_ARCH_HAS_ILOG2_U32 is not set ++# CONFIG_ARCH_HAS_ILOG2_U64 is not set ++CONFIG_GENERIC_HWEIGHT=y ++CONFIG_GENERIC_CALIBRATE_DELAY=y ++CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y ++CONFIG_VECTORS_BASE=0xffff0000 ++CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" ++ ++# ++# General setup ++# ++CONFIG_EXPERIMENTAL=y ++CONFIG_BROKEN_ON_SMP=y ++CONFIG_INIT_ENV_ARG_LIMIT=32 ++CONFIG_LOCALVERSION="" ++CONFIG_LOCALVERSION_AUTO=y ++CONFIG_SWAP=y ++CONFIG_SYSVIPC=y ++CONFIG_SYSVIPC_SYSCTL=y ++# CONFIG_POSIX_MQUEUE is not set ++# CONFIG_BSD_PROCESS_ACCT is not set ++# CONFIG_TASKSTATS is not set ++# CONFIG_AUDIT is not set ++ ++# ++# RCU Subsystem ++# ++CONFIG_CLASSIC_RCU=y ++# CONFIG_TREE_RCU is not set ++# CONFIG_PREEMPT_RCU is not set ++# CONFIG_TREE_RCU_TRACE is not set ++# CONFIG_PREEMPT_RCU_TRACE is not set ++CONFIG_IKCONFIG=y ++CONFIG_IKCONFIG_PROC=y ++CONFIG_LOG_BUF_SHIFT=16 ++# CONFIG_GROUP_SCHED is not set ++# CONFIG_CGROUPS is not set ++# CONFIG_SYSFS_DEPRECATED_V2 is not set ++# CONFIG_RELAY is not set ++CONFIG_NAMESPACES=y ++# CONFIG_UTS_NS is not set ++# CONFIG_IPC_NS is not set ++# CONFIG_USER_NS is not set ++# CONFIG_PID_NS is not set ++# CONFIG_NET_NS is not set ++CONFIG_BLK_DEV_INITRD=y ++CONFIG_INITRAMFS_SOURCE="" ++CONFIG_CC_OPTIMIZE_FOR_SIZE=y ++CONFIG_SYSCTL=y ++CONFIG_ANON_INODES=y ++CONFIG_PANIC_TIMEOUT=0 ++# CONFIG_EMBEDDED is not set ++CONFIG_UID16=y ++CONFIG_SYSCTL_SYSCALL=y ++CONFIG_KALLSYMS=y ++# CONFIG_KALLSYMS_ALL is not set ++# CONFIG_KALLSYMS_EXTRA_PASS is not set ++CONFIG_HOTPLUG=y ++CONFIG_PRINTK=y ++CONFIG_BUG=y ++CONFIG_ELF_CORE=y ++CONFIG_BASE_FULL=y ++CONFIG_FUTEX=y ++CONFIG_EPOLL=y ++CONFIG_SIGNALFD=y ++CONFIG_TIMERFD=y ++CONFIG_EVENTFD=y ++CONFIG_SHMEM=y ++CONFIG_AIO=y ++CONFIG_ASHMEM=y ++CONFIG_VM_EVENT_COUNTERS=y ++CONFIG_COMPAT_BRK=y ++CONFIG_SLAB=y ++# CONFIG_SLUB is not set ++# CONFIG_SLOB is not set ++# CONFIG_PROFILING is not set ++CONFIG_HAVE_OPROFILE=y ++CONFIG_HAVE_KPROBES=y ++CONFIG_HAVE_KRETPROBES=y ++CONFIG_HAVE_GENERIC_DMA_COHERENT=y ++CONFIG_SLABINFO=y ++CONFIG_RT_MUTEXES=y ++CONFIG_BASE_SMALL=0 ++# CONFIG_MODULES is not set ++CONFIG_BLOCK=y ++# CONFIG_LBD is not set ++# CONFIG_BLK_DEV_IO_TRACE is not set ++# CONFIG_BLK_DEV_BSG is not set ++# CONFIG_BLK_DEV_INTEGRITY is not set ++ ++# ++# IO Schedulers ++# ++CONFIG_IOSCHED_NOOP=y ++CONFIG_IOSCHED_AS=y ++CONFIG_IOSCHED_DEADLINE=y ++CONFIG_IOSCHED_CFQ=y ++CONFIG_DEFAULT_AS=y ++# CONFIG_DEFAULT_DEADLINE is not set ++# CONFIG_DEFAULT_CFQ is not set ++# CONFIG_DEFAULT_NOOP is not set ++CONFIG_DEFAULT_IOSCHED="anticipatory" ++CONFIG_FREEZER=y ++ ++# ++# System Type ++# ++# CONFIG_ARCH_AAEC2000 is not set ++CONFIG_ARCH_GOLDFISH=y ++# CONFIG_ARCH_INTEGRATOR is not set ++# CONFIG_ARCH_REALVIEW is not set ++# CONFIG_ARCH_VERSATILE is not set ++# CONFIG_ARCH_AT91 is not set ++# CONFIG_ARCH_CLPS711X is not set ++# CONFIG_ARCH_EBSA110 is not set ++# CONFIG_ARCH_EP93XX is not set ++# CONFIG_ARCH_FOOTBRIDGE is not set ++# CONFIG_ARCH_NETX is not set ++# CONFIG_ARCH_H720X is not set ++# CONFIG_ARCH_IMX is not set ++# CONFIG_ARCH_IOP13XX is not set ++# CONFIG_ARCH_IOP32X is not set ++# CONFIG_ARCH_IOP33X is not set ++# CONFIG_ARCH_IXP23XX is not set ++# CONFIG_ARCH_IXP2000 is not set ++# CONFIG_ARCH_IXP4XX is not set ++# CONFIG_ARCH_L7200 is not set ++# CONFIG_ARCH_KIRKWOOD is not set ++# CONFIG_ARCH_KS8695 is not set ++# CONFIG_ARCH_NS9XXX is not set ++# CONFIG_ARCH_LOKI is not set ++# CONFIG_ARCH_MV78XX0 is not set ++# CONFIG_ARCH_MXC is not set ++# CONFIG_ARCH_ORION5X is not set ++# CONFIG_ARCH_PNX4008 is not set ++# CONFIG_ARCH_PXA is not set ++# CONFIG_ARCH_RPC is not set ++# CONFIG_ARCH_SA1100 is not set ++# CONFIG_ARCH_S3C2410 is not set ++# CONFIG_ARCH_S3C64XX is not set ++# CONFIG_ARCH_SHARK is not set ++# CONFIG_ARCH_LH7A40X is not set ++# CONFIG_ARCH_DAVINCI is not set ++# CONFIG_ARCH_OMAP is not set ++# CONFIG_ARCH_MSM is not set ++# CONFIG_ARCH_W90X900 is not set ++ ++# ++# Goldfish Options ++# ++CONFIG_MACH_GOLDFISH=y ++ ++# ++# Processor Type ++# ++CONFIG_CPU_32=y ++CONFIG_CPU_ARM926T=y ++CONFIG_CPU_32v5=y ++CONFIG_CPU_ABRT_EV5TJ=y ++CONFIG_CPU_PABRT_NOIFAR=y ++CONFIG_CPU_CACHE_VIVT=y ++CONFIG_CPU_COPY_V4WB=y ++CONFIG_CPU_TLB_V4WBI=y ++CONFIG_CPU_CP15=y ++CONFIG_CPU_CP15_MMU=y ++ ++# ++# Processor Features ++# ++CONFIG_ARM_THUMB=y ++# CONFIG_CPU_ICACHE_DISABLE is not set ++# CONFIG_CPU_DCACHE_DISABLE is not set ++# CONFIG_CPU_DCACHE_WRITETHROUGH is not set ++# CONFIG_CPU_CACHE_ROUND_ROBIN is not set ++# CONFIG_OUTER_CACHE is not set ++ ++# ++# Bus support ++# ++# CONFIG_PCI_SYSCALL is not set ++# CONFIG_ARCH_SUPPORTS_MSI is not set ++# CONFIG_PCCARD is not set ++ ++# ++# Kernel Features ++# ++CONFIG_TICK_ONESHOT=y ++CONFIG_NO_HZ=y ++CONFIG_HIGH_RES_TIMERS=y ++CONFIG_GENERIC_CLOCKEVENTS_BUILD=y ++CONFIG_VMSPLIT_3G=y ++# CONFIG_VMSPLIT_2G is not set ++# CONFIG_VMSPLIT_1G is not set ++CONFIG_PAGE_OFFSET=0xC0000000 ++# CONFIG_PREEMPT is not set ++CONFIG_HZ=100 ++CONFIG_AEABI=y ++# CONFIG_OABI_COMPAT is not set ++CONFIG_ARCH_FLATMEM_HAS_HOLES=y ++# CONFIG_ARCH_SPARSEMEM_DEFAULT is not set ++# CONFIG_ARCH_SELECT_MEMORY_MODEL is not set ++CONFIG_SELECT_MEMORY_MODEL=y ++CONFIG_FLATMEM_MANUAL=y ++# CONFIG_DISCONTIGMEM_MANUAL is not set ++# CONFIG_SPARSEMEM_MANUAL is not set ++CONFIG_FLATMEM=y ++CONFIG_FLAT_NODE_MEM_MAP=y ++CONFIG_PAGEFLAGS_EXTENDED=y ++CONFIG_SPLIT_PTLOCK_CPUS=4096 ++# CONFIG_PHYS_ADDR_T_64BIT is not set ++CONFIG_ZONE_DMA_FLAG=0 ++CONFIG_VIRT_TO_BUS=y ++CONFIG_UNEVICTABLE_LRU=y ++CONFIG_ALIGNMENT_TRAP=y ++ ++# ++# Boot options ++# ++CONFIG_ZBOOT_ROM_TEXT=0x0 ++CONFIG_ZBOOT_ROM_BSS=0x0 ++CONFIG_CMDLINE="" ++# CONFIG_XIP_KERNEL is not set ++# CONFIG_KEXEC is not set ++ ++# ++# CPU Power Management ++# ++# CONFIG_CPU_IDLE is not set ++ ++# ++# Floating point emulation ++# ++ ++# ++# At least one emulation must be selected ++# ++CONFIG_VFP=y ++ ++# ++# Userspace binary formats ++# ++CONFIG_BINFMT_ELF=y ++# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set ++CONFIG_HAVE_AOUT=y ++# CONFIG_BINFMT_AOUT is not set ++CONFIG_BINFMT_MISC=y ++ ++# ++# Power management options ++# ++CONFIG_PM=y ++# CONFIG_PM_DEBUG is not set ++CONFIG_PM_SLEEP=y ++CONFIG_SUSPEND=y ++CONFIG_SUSPEND_FREEZER=y ++CONFIG_HAS_WAKELOCK=y ++CONFIG_HAS_EARLYSUSPEND=y ++CONFIG_WAKELOCK=y ++CONFIG_WAKELOCK_STAT=y ++CONFIG_USER_WAKELOCK=y ++CONFIG_EARLYSUSPEND=y ++# CONFIG_NO_USER_SPACE_SCREEN_ACCESS_CONTROL is not set ++CONFIG_CONSOLE_EARLYSUSPEND=y ++# CONFIG_FB_EARLYSUSPEND is not set ++# CONFIG_APM_EMULATION is not set ++CONFIG_ARCH_SUSPEND_POSSIBLE=y ++CONFIG_NET=y ++ ++# ++# Networking options ++# ++CONFIG_COMPAT_NET_DEV_OPS=y ++CONFIG_PACKET=y ++CONFIG_PACKET_MMAP=y ++CONFIG_UNIX=y ++CONFIG_XFRM=y ++# CONFIG_XFRM_USER is not set ++# CONFIG_XFRM_SUB_POLICY is not set ++# CONFIG_XFRM_MIGRATE is not set ++# CONFIG_XFRM_STATISTICS is not set ++CONFIG_XFRM_IPCOMP=y ++# CONFIG_NET_KEY is not set ++CONFIG_INET=y ++CONFIG_IP_MULTICAST=y ++# CONFIG_IP_ADVANCED_ROUTER is not set ++CONFIG_IP_FIB_HASH=y ++CONFIG_IP_PNP=y ++CONFIG_IP_PNP_DHCP=y ++CONFIG_IP_PNP_BOOTP=y ++# CONFIG_IP_PNP_RARP is not set ++CONFIG_NET_IPIP=y ++CONFIG_NET_IPGRE=y ++CONFIG_NET_IPGRE_BROADCAST=y ++CONFIG_IP_MROUTE=y ++CONFIG_IP_PIMSM_V1=y ++CONFIG_IP_PIMSM_V2=y ++CONFIG_ARPD=y ++CONFIG_SYN_COOKIES=y ++CONFIG_INET_AH=y ++CONFIG_INET_ESP=y ++CONFIG_INET_IPCOMP=y ++CONFIG_INET_XFRM_TUNNEL=y ++CONFIG_INET_TUNNEL=y ++CONFIG_INET_XFRM_MODE_TRANSPORT=y ++CONFIG_INET_XFRM_MODE_TUNNEL=y ++CONFIG_INET_XFRM_MODE_BEET=y ++# CONFIG_INET_LRO is not set ++CONFIG_INET_DIAG=y ++CONFIG_INET_TCP_DIAG=y ++# CONFIG_TCP_CONG_ADVANCED is not set ++CONFIG_TCP_CONG_CUBIC=y ++CONFIG_DEFAULT_TCP_CONG="cubic" ++# CONFIG_TCP_MD5SIG is not set ++# CONFIG_IPV6 is not set ++CONFIG_ANDROID_PARANOID_NETWORK=y ++# CONFIG_NETWORK_SECMARK is not set ++# CONFIG_NETFILTER is not set ++# CONFIG_IP_DCCP is not set ++# CONFIG_IP_SCTP is not set ++# CONFIG_TIPC is not set ++# CONFIG_ATM is not set ++CONFIG_STP=y ++CONFIG_BRIDGE=y ++# CONFIG_NET_DSA is not set ++CONFIG_VLAN_8021Q=y ++# CONFIG_VLAN_8021Q_GVRP is not set ++# CONFIG_DECNET is not set ++CONFIG_LLC=y ++# CONFIG_LLC2 is not set ++# CONFIG_IPX is not set ++# CONFIG_ATALK is not set ++# CONFIG_X25 is not set ++# CONFIG_LAPB is not set ++# CONFIG_ECONET is not set ++# CONFIG_WAN_ROUTER is not set ++# CONFIG_NET_SCHED is not set ++# CONFIG_DCB is not set ++ ++# ++# Network testing ++# ++# CONFIG_NET_PKTGEN is not set ++# CONFIG_HAMRADIO is not set ++# CONFIG_CAN is not set ++# CONFIG_IRDA is not set ++# CONFIG_BT is not set ++# CONFIG_AF_RXRPC is not set ++# CONFIG_PHONET is not set ++CONFIG_WIRELESS=y ++# CONFIG_CFG80211 is not set ++CONFIG_WIRELESS_OLD_REGULATORY=y ++# CONFIG_WIRELESS_EXT is not set ++# CONFIG_LIB80211 is not set ++# CONFIG_MAC80211 is not set ++# CONFIG_WIMAX is not set ++# CONFIG_RFKILL is not set ++# CONFIG_NET_9P is not set ++ ++# ++# Device Drivers ++# ++ ++# ++# Generic Driver Options ++# ++CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" ++CONFIG_STANDALONE=y ++CONFIG_PREVENT_FIRMWARE_BUILD=y ++CONFIG_FW_LOADER=y ++CONFIG_FIRMWARE_IN_KERNEL=y ++CONFIG_EXTRA_FIRMWARE="" ++# CONFIG_DEBUG_DRIVER is not set ++# CONFIG_DEBUG_DEVRES is not set ++# CONFIG_SYS_HYPERVISOR is not set ++CONFIG_CONNECTOR=y ++CONFIG_PROC_EVENTS=y ++CONFIG_MTD=y ++# CONFIG_MTD_DEBUG is not set ++# CONFIG_MTD_CONCAT is not set ++# CONFIG_MTD_PARTITIONS is not set ++ ++# ++# User Modules And Translation Layers ++# ++CONFIG_MTD_CHAR=y ++CONFIG_MTD_BLKDEVS=y ++CONFIG_MTD_BLOCK=y ++# CONFIG_FTL is not set ++# CONFIG_NFTL is not set ++# CONFIG_INFTL is not set ++# CONFIG_RFD_FTL is not set ++# CONFIG_SSFDC is not set ++# CONFIG_MTD_OOPS is not set ++ ++# ++# RAM/ROM/Flash chip drivers ++# ++# CONFIG_MTD_CFI is not set ++# CONFIG_MTD_JEDECPROBE is not set ++CONFIG_MTD_MAP_BANK_WIDTH_1=y ++CONFIG_MTD_MAP_BANK_WIDTH_2=y ++CONFIG_MTD_MAP_BANK_WIDTH_4=y ++# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set ++# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set ++# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set ++CONFIG_MTD_CFI_I1=y ++CONFIG_MTD_CFI_I2=y ++# CONFIG_MTD_CFI_I4 is not set ++# CONFIG_MTD_CFI_I8 is not set ++# CONFIG_MTD_RAM is not set ++# CONFIG_MTD_ROM is not set ++# CONFIG_MTD_ABSENT is not set ++ ++# ++# Mapping drivers for chip access ++# ++# CONFIG_MTD_COMPLEX_MAPPINGS is not set ++# CONFIG_MTD_PLATRAM is not set ++ ++# ++# Self-contained MTD device drivers ++# ++# CONFIG_MTD_SLRAM is not set ++# CONFIG_MTD_PHRAM is not set ++# CONFIG_MTD_MTDRAM is not set ++# CONFIG_MTD_BLOCK2MTD is not set ++ ++# ++# Disk-On-Chip Device Drivers ++# ++# CONFIG_MTD_DOC2000 is not set ++# CONFIG_MTD_DOC2001 is not set ++# CONFIG_MTD_DOC2001PLUS is not set ++CONFIG_MTD_GOLDFISH_NAND=y ++# CONFIG_MTD_NAND is not set ++# CONFIG_MTD_ONENAND is not set ++ ++# ++# LPDDR flash memory drivers ++# ++# CONFIG_MTD_LPDDR is not set ++ ++# ++# UBI - Unsorted block images ++# ++# CONFIG_MTD_UBI is not set ++# CONFIG_PARPORT is not set ++CONFIG_BLK_DEV=y ++# CONFIG_BLK_DEV_COW_COMMON is not set ++CONFIG_BLK_DEV_LOOP=y ++# CONFIG_BLK_DEV_CRYPTOLOOP is not set ++CONFIG_BLK_DEV_NBD=y ++CONFIG_BLK_DEV_RAM=y ++CONFIG_BLK_DEV_RAM_COUNT=16 ++CONFIG_BLK_DEV_RAM_SIZE=8192 ++# CONFIG_BLK_DEV_XIP is not set ++# CONFIG_CDROM_PKTCDVD is not set ++# CONFIG_ATA_OVER_ETH is not set ++CONFIG_MISC_DEVICES=y ++CONFIG_ANDROID_PMEM=y ++# CONFIG_ENCLOSURE_SERVICES is not set ++# CONFIG_KERNEL_DEBUGGER_CORE is not set ++# CONFIG_UID_STAT is not set ++CONFIG_QEMU_TRACE=y ++# CONFIG_C2PORT is not set ++ ++# ++# EEPROM support ++# ++# CONFIG_EEPROM_93CX6 is not set ++CONFIG_HAVE_IDE=y ++# CONFIG_IDE is not set ++ ++# ++# SCSI device support ++# ++# CONFIG_RAID_ATTRS is not set ++# CONFIG_SCSI is not set ++# CONFIG_SCSI_DMA is not set ++# CONFIG_SCSI_NETLINK is not set ++# CONFIG_ATA is not set ++# CONFIG_MD is not set ++CONFIG_NETDEVICES=y ++# CONFIG_DUMMY is not set ++# CONFIG_BONDING is not set ++# CONFIG_MACVLAN is not set ++# CONFIG_EQUALIZER is not set ++# CONFIG_TUN is not set ++# CONFIG_VETH is not set ++# CONFIG_PHYLIB is not set ++CONFIG_NET_ETHERNET=y ++CONFIG_MII=y ++# CONFIG_AX88796 is not set ++CONFIG_SMC91X=y ++# CONFIG_DM9000 is not set ++# CONFIG_SMC911X is not set ++# CONFIG_SMSC911X is not set ++# CONFIG_DNET is not set ++# CONFIG_IBM_NEW_EMAC_ZMII is not set ++# CONFIG_IBM_NEW_EMAC_RGMII is not set ++# CONFIG_IBM_NEW_EMAC_TAH is not set ++# CONFIG_IBM_NEW_EMAC_EMAC4 is not set ++# CONFIG_IBM_NEW_EMAC_NO_FLOW_CTRL is not set ++# CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT is not set ++# CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set ++# CONFIG_B44 is not set ++CONFIG_NETDEV_1000=y ++CONFIG_NETDEV_10000=y ++ ++# ++# Wireless LAN ++# ++# CONFIG_WLAN_PRE80211 is not set ++# CONFIG_WLAN_80211 is not set ++# CONFIG_IWLWIFI_LEDS is not set ++ ++# ++# Enable WiMAX (Networking options) to see the WiMAX drivers ++# ++# CONFIG_WAN is not set ++# CONFIG_PPP is not set ++# CONFIG_SLIP is not set ++# CONFIG_NETCONSOLE is not set ++# CONFIG_NETPOLL is not set ++# CONFIG_NET_POLL_CONTROLLER is not set ++# CONFIG_ISDN is not set ++ ++# ++# Input device support ++# ++CONFIG_INPUT=y ++# CONFIG_INPUT_FF_MEMLESS is not set ++# CONFIG_INPUT_POLLDEV is not set ++ ++# ++# Userland interfaces ++# ++CONFIG_INPUT_MOUSEDEV=y ++CONFIG_INPUT_MOUSEDEV_PSAUX=y ++CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024 ++CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768 ++# CONFIG_INPUT_JOYDEV is not set ++CONFIG_INPUT_EVDEV=y ++# CONFIG_INPUT_EVBUG is not set ++# CONFIG_INPUT_KEYRESET is not set ++ ++# ++# Input Device Drivers ++# ++CONFIG_INPUT_KEYBOARD=y ++CONFIG_KEYBOARD_ATKBD=y ++# CONFIG_KEYBOARD_SUNKBD is not set ++# CONFIG_KEYBOARD_LKKBD is not set ++# CONFIG_KEYBOARD_XTKBD is not set ++# CONFIG_KEYBOARD_NEWTON is not set ++# CONFIG_KEYBOARD_STOWAWAY is not set ++CONFIG_KEYBOARD_GOLDFISH_EVENTS=y ++# CONFIG_INPUT_MOUSE is not set ++# CONFIG_INPUT_JOYSTICK is not set ++# CONFIG_INPUT_TABLET is not set ++# CONFIG_INPUT_TOUCHSCREEN is not set ++CONFIG_INPUT_MISC=y ++# CONFIG_INPUT_ATI_REMOTE is not set ++# CONFIG_INPUT_ATI_REMOTE2 is not set ++# CONFIG_INPUT_KEYSPAN_REMOTE is not set ++# CONFIG_INPUT_POWERMATE is not set ++# CONFIG_INPUT_YEALINK is not set ++# CONFIG_INPUT_CM109 is not set ++# CONFIG_INPUT_UINPUT is not set ++# CONFIG_INPUT_GPIO is not set ++# CONFIG_INPUT_KEYCHORD is not set ++ ++# ++# Hardware I/O ports ++# ++CONFIG_SERIO=y ++# CONFIG_SERIO_SERPORT is not set ++CONFIG_SERIO_LIBPS2=y ++# CONFIG_SERIO_RAW is not set ++# CONFIG_GAMEPORT is not set ++ ++# ++# Character devices ++# ++CONFIG_VT=y ++CONFIG_CONSOLE_TRANSLATIONS=y ++CONFIG_VT_CONSOLE=y ++CONFIG_HW_CONSOLE=y ++# CONFIG_VT_HW_CONSOLE_BINDING is not set ++CONFIG_DEVMEM=y ++CONFIG_DEVKMEM=y ++# CONFIG_SERIAL_NONSTANDARD is not set ++ ++# ++# Serial drivers ++# ++# CONFIG_SERIAL_8250 is not set ++ ++# ++# Non-8250 serial port support ++# ++CONFIG_UNIX98_PTYS=y ++# CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set ++# CONFIG_LEGACY_PTYS is not set ++# CONFIG_IPMI_HANDLER is not set ++CONFIG_HW_RANDOM=y ++# CONFIG_R3964 is not set ++# CONFIG_RAW_DRIVER is not set ++# CONFIG_TCG_TPM is not set ++# CONFIG_DCC_TTY is not set ++CONFIG_GOLDFISH_TTY=y ++# CONFIG_I2C is not set ++# CONFIG_SPI is not set ++# CONFIG_W1 is not set ++CONFIG_POWER_SUPPLY=y ++# CONFIG_POWER_SUPPLY_DEBUG is not set ++# CONFIG_PDA_POWER is not set ++# CONFIG_BATTERY_DS2760 is not set ++CONFIG_BATTERY_GOLDFISH=y ++# CONFIG_HWMON is not set ++# CONFIG_THERMAL is not set ++# CONFIG_THERMAL_HWMON is not set ++# CONFIG_WATCHDOG is not set ++CONFIG_SSB_POSSIBLE=y ++ ++# ++# Sonics Silicon Backplane ++# ++# CONFIG_SSB is not set ++ ++# ++# Multifunction device drivers ++# ++# CONFIG_MFD_CORE is not set ++# CONFIG_MFD_SM501 is not set ++# CONFIG_HTC_PASIC3 is not set ++# CONFIG_MFD_TMIO is not set ++ ++# ++# Multimedia devices ++# ++ ++# ++# Multimedia core support ++# ++# CONFIG_VIDEO_DEV is not set ++# CONFIG_DVB_CORE is not set ++# CONFIG_VIDEO_MEDIA is not set ++ ++# ++# Multimedia drivers ++# ++# CONFIG_DAB is not set ++ ++# ++# Graphics support ++# ++# CONFIG_VGASTATE is not set ++# CONFIG_VIDEO_OUTPUT_CONTROL is not set ++CONFIG_FB=y ++# CONFIG_FIRMWARE_EDID is not set ++# CONFIG_FB_DDC is not set ++# CONFIG_FB_BOOT_VESA_SUPPORT is not set ++CONFIG_FB_CFB_FILLRECT=y ++CONFIG_FB_CFB_COPYAREA=y ++CONFIG_FB_CFB_IMAGEBLIT=y ++# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set ++# CONFIG_FB_SYS_FILLRECT is not set ++# CONFIG_FB_SYS_COPYAREA is not set ++# CONFIG_FB_SYS_IMAGEBLIT is not set ++# CONFIG_FB_FOREIGN_ENDIAN is not set ++# CONFIG_FB_SYS_FOPS is not set ++# CONFIG_FB_SVGALIB is not set ++# CONFIG_FB_MACMODES is not set ++# CONFIG_FB_BACKLIGHT is not set ++CONFIG_FB_MODE_HELPERS=y ++CONFIG_FB_TILEBLITTING=y ++ ++# ++# Frame buffer hardware drivers ++# ++# CONFIG_FB_UVESA is not set ++# CONFIG_FB_S1D13XXX is not set ++CONFIG_FB_GOLDFISH=y ++# CONFIG_FB_VIRTUAL is not set ++# CONFIG_FB_METRONOME is not set ++# CONFIG_FB_MB862XX is not set ++# CONFIG_BACKLIGHT_LCD_SUPPORT is not set ++ ++# ++# Display device support ++# ++# CONFIG_DISPLAY_SUPPORT is not set ++ ++# ++# Console display driver support ++# ++# CONFIG_VGA_CONSOLE is not set ++CONFIG_DUMMY_CONSOLE=y ++CONFIG_FRAMEBUFFER_CONSOLE=y ++# CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set ++# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set ++# CONFIG_FONTS is not set ++CONFIG_FONT_8x8=y ++CONFIG_FONT_8x16=y ++# CONFIG_LOGO is not set ++# CONFIG_SOUND is not set ++CONFIG_HID_SUPPORT=y ++CONFIG_HID=y ++# CONFIG_HID_DEBUG is not set ++# CONFIG_HIDRAW is not set ++# CONFIG_HID_PID is not set ++ ++# ++# Special HID drivers ++# ++CONFIG_HID_COMPAT=y ++CONFIG_USB_SUPPORT=y ++CONFIG_USB_ARCH_HAS_HCD=y ++# CONFIG_USB_ARCH_HAS_OHCI is not set ++# CONFIG_USB_ARCH_HAS_EHCI is not set ++# CONFIG_USB is not set ++ ++# ++# Enable Host or Gadget support to see Inventra options ++# ++ ++# ++# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may also be needed; ++# ++# CONFIG_USB_GADGET is not set ++ ++# ++# OTG and related infrastructure ++# ++CONFIG_MMC=y ++# CONFIG_MMC_DEBUG is not set ++# CONFIG_MMC_UNSAFE_RESUME is not set ++# CONFIG_MMC_EMBEDDED_SDIO is not set ++# CONFIG_MMC_PARANOID_SD_INIT is not set ++ ++# ++# MMC/SD/SDIO Card Drivers ++# ++CONFIG_MMC_BLOCK=y ++CONFIG_MMC_BLOCK_BOUNCE=y ++CONFIG_MMC_BLOCK_PARANOID_RESUME=y ++# CONFIG_SDIO_UART is not set ++# CONFIG_MMC_TEST is not set ++ ++# ++# MMC/SD/SDIO Host Controller Drivers ++# ++# CONFIG_MMC_SDHCI is not set ++CONFIG_MMC_GOLDFISH=y ++# CONFIG_MEMSTICK is not set ++# CONFIG_ACCESSIBILITY is not set ++# CONFIG_NEW_LEDS is not set ++# CONFIG_SWITCH is not set ++CONFIG_RTC_LIB=y ++CONFIG_RTC_CLASS=y ++CONFIG_RTC_HCTOSYS=y ++CONFIG_RTC_HCTOSYS_DEVICE="rtc0" ++# CONFIG_RTC_DEBUG is not set ++ ++# ++# RTC interfaces ++# ++CONFIG_RTC_INTF_SYSFS=y ++CONFIG_RTC_INTF_PROC=y ++CONFIG_RTC_INTF_DEV=y ++# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set ++CONFIG_RTC_INTF_ALARM=y ++# CONFIG_RTC_DRV_TEST is not set ++ ++# ++# SPI RTC drivers ++# ++ ++# ++# Platform RTC drivers ++# ++# CONFIG_RTC_DRV_CMOS is not set ++# CONFIG_RTC_DRV_DS1286 is not set ++# CONFIG_RTC_DRV_DS1511 is not set ++# CONFIG_RTC_DRV_DS1553 is not set ++# CONFIG_RTC_DRV_DS1742 is not set ++# CONFIG_RTC_DRV_STK17TA8 is not set ++# CONFIG_RTC_DRV_M48T86 is not set ++# CONFIG_RTC_DRV_M48T35 is not set ++# CONFIG_RTC_DRV_M48T59 is not set ++# CONFIG_RTC_DRV_BQ4802 is not set ++# CONFIG_RTC_DRV_V3020 is not set ++ ++# ++# on-CPU RTC drivers ++# ++CONFIG_RTC_DRV_GOLDFISH=y ++# CONFIG_DMADEVICES is not set ++# CONFIG_REGULATOR is not set ++# CONFIG_UIO is not set ++CONFIG_STAGING=y ++# CONFIG_STAGING_EXCLUDE_BUILD is not set ++# CONFIG_ECHO is not set ++ ++# ++# Android ++# ++CONFIG_ANDROID=y ++CONFIG_ANDROID_BINDER_IPC=y ++CONFIG_ANDROID_LOGGER=y ++# CONFIG_ANDROID_RAM_CONSOLE is not set ++CONFIG_ANDROID_TIMED_OUTPUT=y ++CONFIG_ANDROID_LOW_MEMORY_KILLER=y ++ ++# ++# File systems ++# ++# CONFIG_EXT2_FS is not set ++# CONFIG_EXT3_FS is not set ++# CONFIG_EXT4_FS is not set ++# CONFIG_REISERFS_FS is not set ++# CONFIG_JFS_FS is not set ++# CONFIG_FS_POSIX_ACL is not set ++CONFIG_FILE_LOCKING=y ++# CONFIG_XFS_FS is not set ++# CONFIG_OCFS2_FS is not set ++# CONFIG_BTRFS_FS is not set ++CONFIG_DNOTIFY=y ++CONFIG_INOTIFY=y ++CONFIG_INOTIFY_USER=y ++# CONFIG_QUOTA is not set ++# CONFIG_AUTOFS_FS is not set ++# CONFIG_AUTOFS4_FS is not set ++# CONFIG_FUSE_FS is not set ++ ++# ++# CD-ROM/DVD Filesystems ++# ++# CONFIG_ISO9660_FS is not set ++# CONFIG_UDF_FS is not set ++ ++# ++# DOS/FAT/NT Filesystems ++# ++CONFIG_FAT_FS=y ++CONFIG_MSDOS_FS=y ++CONFIG_VFAT_FS=y ++CONFIG_FAT_DEFAULT_CODEPAGE=437 ++CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1" ++# CONFIG_NTFS_FS is not set ++ ++# ++# Pseudo filesystems ++# ++CONFIG_PROC_FS=y ++CONFIG_PROC_SYSCTL=y ++CONFIG_PROC_PAGE_MONITOR=y ++CONFIG_SYSFS=y ++CONFIG_TMPFS=y ++# CONFIG_TMPFS_POSIX_ACL is not set ++# CONFIG_HUGETLB_PAGE is not set ++# CONFIG_CONFIGFS_FS is not set ++CONFIG_MISC_FILESYSTEMS=y ++# CONFIG_ADFS_FS is not set ++# CONFIG_AFFS_FS is not set ++# CONFIG_HFS_FS is not set ++# CONFIG_HFSPLUS_FS is not set ++# CONFIG_BEFS_FS is not set ++# CONFIG_BFS_FS is not set ++# CONFIG_EFS_FS is not set ++CONFIG_YAFFS_FS=y ++CONFIG_YAFFS_YAFFS1=y ++# CONFIG_YAFFS_9BYTE_TAGS is not set ++# CONFIG_YAFFS_DOES_ECC is not set ++CONFIG_YAFFS_YAFFS2=y ++CONFIG_YAFFS_AUTO_YAFFS2=y ++# CONFIG_YAFFS_DISABLE_LAZY_LOAD is not set ++# CONFIG_YAFFS_DISABLE_WIDE_TNODES is not set ++# CONFIG_YAFFS_ALWAYS_CHECK_CHUNK_ERASED is not set ++CONFIG_YAFFS_SHORT_NAMES_IN_RAM=y ++# CONFIG_JFFS2_FS is not set ++# CONFIG_CRAMFS is not set ++# CONFIG_SQUASHFS is not set ++# CONFIG_VXFS_FS is not set ++# CONFIG_MINIX_FS is not set ++# CONFIG_OMFS_FS is not set ++# CONFIG_HPFS_FS is not set ++# CONFIG_QNX4FS_FS is not set ++# CONFIG_ROMFS_FS is not set ++# CONFIG_SYSV_FS is not set ++# CONFIG_UFS_FS is not set ++CONFIG_NETWORK_FILESYSTEMS=y ++# CONFIG_NFS_FS is not set ++CONFIG_NFSD=y ++CONFIG_NFSD_V3=y ++# CONFIG_NFSD_V3_ACL is not set ++# CONFIG_NFSD_V4 is not set ++CONFIG_LOCKD=y ++CONFIG_LOCKD_V4=y ++CONFIG_EXPORTFS=y ++CONFIG_NFS_COMMON=y ++CONFIG_SUNRPC=y ++# CONFIG_SUNRPC_REGISTER_V4 is not set ++# CONFIG_RPCSEC_GSS_KRB5 is not set ++# CONFIG_RPCSEC_GSS_SPKM3 is not set ++CONFIG_SMB_FS=y ++# CONFIG_SMB_NLS_DEFAULT is not set ++# CONFIG_CIFS is not set ++# CONFIG_NCP_FS is not set ++# CONFIG_CODA_FS is not set ++# CONFIG_AFS_FS is not set ++ ++# ++# Partition Types ++# ++# CONFIG_PARTITION_ADVANCED is not set ++CONFIG_MSDOS_PARTITION=y ++CONFIG_NLS=y ++CONFIG_NLS_DEFAULT="iso8859-1" ++CONFIG_NLS_CODEPAGE_437=y ++# CONFIG_NLS_CODEPAGE_737 is not set ++# CONFIG_NLS_CODEPAGE_775 is not set ++# CONFIG_NLS_CODEPAGE_850 is not set ++# CONFIG_NLS_CODEPAGE_852 is not set ++# CONFIG_NLS_CODEPAGE_855 is not set ++# CONFIG_NLS_CODEPAGE_857 is not set ++# CONFIG_NLS_CODEPAGE_860 is not set ++# CONFIG_NLS_CODEPAGE_861 is not set ++# CONFIG_NLS_CODEPAGE_862 is not set ++# CONFIG_NLS_CODEPAGE_863 is not set ++# CONFIG_NLS_CODEPAGE_864 is not set ++# CONFIG_NLS_CODEPAGE_865 is not set ++# CONFIG_NLS_CODEPAGE_866 is not set ++# CONFIG_NLS_CODEPAGE_869 is not set ++# CONFIG_NLS_CODEPAGE_936 is not set ++# CONFIG_NLS_CODEPAGE_950 is not set ++# CONFIG_NLS_CODEPAGE_932 is not set ++# CONFIG_NLS_CODEPAGE_949 is not set ++# CONFIG_NLS_CODEPAGE_874 is not set ++# CONFIG_NLS_ISO8859_8 is not set ++# CONFIG_NLS_CODEPAGE_1250 is not set ++# CONFIG_NLS_CODEPAGE_1251 is not set ++# CONFIG_NLS_ASCII is not set ++CONFIG_NLS_ISO8859_1=y ++# CONFIG_NLS_ISO8859_2 is not set ++# CONFIG_NLS_ISO8859_3 is not set ++# CONFIG_NLS_ISO8859_4 is not set ++# CONFIG_NLS_ISO8859_5 is not set ++# CONFIG_NLS_ISO8859_6 is not set ++# CONFIG_NLS_ISO8859_7 is not set ++# CONFIG_NLS_ISO8859_9 is not set ++# CONFIG_NLS_ISO8859_13 is not set ++# CONFIG_NLS_ISO8859_14 is not set ++# CONFIG_NLS_ISO8859_15 is not set ++# CONFIG_NLS_KOI8_R is not set ++# CONFIG_NLS_KOI8_U is not set ++# CONFIG_NLS_UTF8 is not set ++# CONFIG_DLM is not set ++ ++# ++# Kernel hacking ++# ++# CONFIG_PRINTK_TIME is not set ++CONFIG_ENABLE_WARN_DEPRECATED=y ++CONFIG_ENABLE_MUST_CHECK=y ++CONFIG_FRAME_WARN=1024 ++CONFIG_MAGIC_SYSRQ=y ++# CONFIG_UNUSED_SYMBOLS is not set ++# CONFIG_DEBUG_FS is not set ++# CONFIG_HEADERS_CHECK is not set ++CONFIG_DEBUG_KERNEL=y ++# CONFIG_DEBUG_SHIRQ is not set ++# CONFIG_DETECT_SOFTLOCKUP is not set ++CONFIG_SCHED_DEBUG=y ++CONFIG_SCHEDSTATS=y ++# CONFIG_TIMER_STATS is not set ++# CONFIG_DEBUG_OBJECTS is not set ++# CONFIG_DEBUG_SLAB is not set ++# CONFIG_DEBUG_RT_MUTEXES is not set ++# CONFIG_RT_MUTEX_TESTER is not set ++# CONFIG_DEBUG_SPINLOCK is not set ++# CONFIG_DEBUG_MUTEXES is not set ++# CONFIG_DEBUG_LOCK_ALLOC is not set ++# CONFIG_PROVE_LOCKING is not set ++# CONFIG_LOCK_STAT is not set ++# CONFIG_DEBUG_SPINLOCK_SLEEP is not set ++# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set ++# CONFIG_DEBUG_KOBJECT is not set ++CONFIG_DEBUG_BUGVERBOSE=y ++# CONFIG_DEBUG_INFO is not set ++# CONFIG_DEBUG_VM is not set ++# CONFIG_DEBUG_WRITECOUNT is not set ++CONFIG_DEBUG_MEMORY_INIT=y ++# CONFIG_DEBUG_LIST is not set ++# CONFIG_DEBUG_SG is not set ++# CONFIG_DEBUG_NOTIFIERS is not set ++CONFIG_FRAME_POINTER=y ++# CONFIG_BOOT_PRINTK_DELAY is not set ++# CONFIG_RCU_TORTURE_TEST is not set ++# CONFIG_RCU_CPU_STALL_DETECTOR is not set ++# CONFIG_BACKTRACE_SELF_TEST is not set ++# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set ++# CONFIG_FAULT_INJECTION is not set ++# CONFIG_LATENCYTOP is not set ++# CONFIG_SYSCTL_SYSCALL_CHECK is not set ++CONFIG_HAVE_FUNCTION_TRACER=y ++ ++# ++# Tracers ++# ++# CONFIG_FUNCTION_TRACER is not set ++# CONFIG_IRQSOFF_TRACER is not set ++# CONFIG_SCHED_TRACER is not set ++# CONFIG_CONTEXT_SWITCH_TRACER is not set ++# CONFIG_BOOT_TRACER is not set ++# CONFIG_TRACE_BRANCH_PROFILING is not set ++# CONFIG_STACK_TRACER is not set ++# CONFIG_DYNAMIC_PRINTK_DEBUG is not set ++# CONFIG_SAMPLES is not set ++CONFIG_HAVE_ARCH_KGDB=y ++# CONFIG_KGDB is not set ++# CONFIG_DEBUG_USER is not set ++# CONFIG_DEBUG_ERRORS is not set ++# CONFIG_DEBUG_STACK_USAGE is not set ++# CONFIG_DEBUG_LL is not set ++ ++# ++# Security options ++# ++# CONFIG_KEYS is not set ++# CONFIG_SECURITY is not set ++# CONFIG_SECURITYFS is not set ++# CONFIG_SECURITY_FILE_CAPABILITIES is not set ++CONFIG_CRYPTO=y ++ ++# ++# Crypto core or helper ++# ++# CONFIG_CRYPTO_FIPS is not set ++CONFIG_CRYPTO_ALGAPI=y ++CONFIG_CRYPTO_ALGAPI2=y ++CONFIG_CRYPTO_AEAD=y ++CONFIG_CRYPTO_AEAD2=y ++CONFIG_CRYPTO_BLKCIPHER=y ++CONFIG_CRYPTO_BLKCIPHER2=y ++CONFIG_CRYPTO_HASH=y ++CONFIG_CRYPTO_HASH2=y ++CONFIG_CRYPTO_RNG2=y ++CONFIG_CRYPTO_MANAGER=y ++CONFIG_CRYPTO_MANAGER2=y ++# CONFIG_CRYPTO_GF128MUL is not set ++# CONFIG_CRYPTO_NULL is not set ++# CONFIG_CRYPTO_CRYPTD is not set ++CONFIG_CRYPTO_AUTHENC=y ++ ++# ++# Authenticated Encryption with Associated Data ++# ++# CONFIG_CRYPTO_CCM is not set ++# CONFIG_CRYPTO_GCM is not set ++# CONFIG_CRYPTO_SEQIV is not set ++ ++# ++# Block modes ++# ++CONFIG_CRYPTO_CBC=y ++# CONFIG_CRYPTO_CTR is not set ++# CONFIG_CRYPTO_CTS is not set ++CONFIG_CRYPTO_ECB=y ++# CONFIG_CRYPTO_LRW is not set ++CONFIG_CRYPTO_PCBC=y ++# CONFIG_CRYPTO_XTS is not set ++ ++# ++# Hash modes ++# ++CONFIG_CRYPTO_HMAC=y ++# CONFIG_CRYPTO_XCBC is not set ++ ++# ++# Digest ++# ++# CONFIG_CRYPTO_CRC32C is not set ++# CONFIG_CRYPTO_MD4 is not set ++CONFIG_CRYPTO_MD5=y ++# CONFIG_CRYPTO_MICHAEL_MIC is not set ++# CONFIG_CRYPTO_RMD128 is not set ++# CONFIG_CRYPTO_RMD160 is not set ++# CONFIG_CRYPTO_RMD256 is not set ++# CONFIG_CRYPTO_RMD320 is not set ++CONFIG_CRYPTO_SHA1=y ++# CONFIG_CRYPTO_SHA256 is not set ++# CONFIG_CRYPTO_SHA512 is not set ++# CONFIG_CRYPTO_TGR192 is not set ++# CONFIG_CRYPTO_WP512 is not set ++ ++# ++# Ciphers ++# ++# CONFIG_CRYPTO_AES is not set ++# CONFIG_CRYPTO_ANUBIS is not set ++# CONFIG_CRYPTO_ARC4 is not set ++# CONFIG_CRYPTO_BLOWFISH is not set ++# CONFIG_CRYPTO_CAMELLIA is not set ++# CONFIG_CRYPTO_CAST5 is not set ++# CONFIG_CRYPTO_CAST6 is not set ++CONFIG_CRYPTO_DES=y ++# CONFIG_CRYPTO_FCRYPT is not set ++# CONFIG_CRYPTO_KHAZAD is not set ++# CONFIG_CRYPTO_SALSA20 is not set ++# CONFIG_CRYPTO_SEED is not set ++# CONFIG_CRYPTO_SERPENT is not set ++# CONFIG_CRYPTO_TEA is not set ++# CONFIG_CRYPTO_TWOFISH is not set ++ ++# ++# Compression ++# ++CONFIG_CRYPTO_DEFLATE=y ++# CONFIG_CRYPTO_LZO is not set ++ ++# ++# Random Number Generation ++# ++# CONFIG_CRYPTO_ANSI_CPRNG is not set ++CONFIG_CRYPTO_HW=y ++ ++# ++# Library routines ++# ++CONFIG_BITREVERSE=y ++CONFIG_GENERIC_FIND_LAST_BIT=y ++# CONFIG_CRC_CCITT is not set ++# CONFIG_CRC16 is not set ++# CONFIG_CRC_T10DIF is not set ++# CONFIG_CRC_ITU_T is not set ++CONFIG_CRC32=y ++# CONFIG_CRC7 is not set ++# CONFIG_LIBCRC32C is not set ++CONFIG_ZLIB_INFLATE=y ++CONFIG_ZLIB_DEFLATE=y ++CONFIG_PLIST=y ++CONFIG_HAS_IOMEM=y ++CONFIG_HAS_IOPORT=y ++CONFIG_HAS_DMA=y +--- /dev/null ++++ b/arch/arm/mach-goldfish/Kconfig +@@ -0,0 +1,11 @@ ++if ARCH_GOLDFISH ++ ++menu "Goldfish Options" ++ ++config MACH_GOLDFISH ++ bool "Goldfish (Virtual Platform)" ++ select CPU_ARM926T ++ ++endmenu ++ ++endif +--- /dev/null ++++ b/arch/arm/mach-goldfish/Makefile +@@ -0,0 +1,9 @@ ++# ++# Makefile for the linux kernel. ++# ++ ++# Object file lists. ++ ++obj-y := pdev_bus.o timer.o ++obj-$(CONFIG_MACH_GOLDFISH) += board-goldfish.o ++ +--- /dev/null ++++ b/arch/arm/mach-goldfish/Makefile.boot +@@ -0,0 +1,4 @@ ++ zreladdr-y := 0x00008000 ++params_phys-y := 0x00000100 ++initrd_phys-y := 0x00800000 ++ +--- /dev/null ++++ b/arch/arm/mach-goldfish/board-goldfish.c +@@ -0,0 +1,122 @@ ++/* arch/arm/mach-goldfish/board-goldfish.c ++** ++** Copyright (C) 2007 Google, Inc. ++** ++** This software is licensed under the terms of the GNU General Public ++** License version 2, as published by the Free Software Foundation, and ++** may be copied, distributed, and modified under those terms. ++** ++** This program is distributed in the hope that it will be useful, ++** but WITHOUT ANY WARRANTY; without even the implied warranty of ++** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++** GNU General Public License for more details. ++** ++*/ ++ ++#include <linux/kernel.h> ++#include <linux/init.h> ++#include <linux/interrupt.h> ++#include <linux/irq.h> ++#include <linux/platform_device.h> ++#include <linux/delay.h> ++#include <linux/mtd/mtd.h> ++#include <linux/mtd/nand.h> ++#include <linux/mtd/partitions.h> ++#include <linux/input.h> ++ ++#include <mach/hardware.h> ++#include <asm/io.h> ++#include <asm/mach-types.h> ++#include <asm/mach/arch.h> ++#include <asm/mach/flash.h> ++#include <asm/mach/map.h> ++#include <asm/mach/time.h> ++ ++int GOLDFISH_READY = 0; ++ ++static struct resource goldfish_pdev_bus_resources[] = { ++ { ++ .start = GOLDFISH_PDEV_BUS_BASE, ++ .end = GOLDFISH_PDEV_BUS_BASE + GOLDFISH_PDEV_BUS_END - 1, ++ .flags = IORESOURCE_IO, ++ }, ++ { ++ .start = IRQ_PDEV_BUS, ++ .end = IRQ_PDEV_BUS, ++ .flags = IORESOURCE_IRQ, ++ } ++}; ++ ++ ++struct platform_device goldfish_pdev_bus_device = { ++ .name = "goldfish_pdev_bus", ++ .id = -1, ++ .num_resources = ARRAY_SIZE(goldfish_pdev_bus_resources), ++ .resource = goldfish_pdev_bus_resources ++}; ++ ++static void __init goldfish_init(void) ++{ ++ platform_device_register(&goldfish_pdev_bus_device); ++} ++ ++void goldfish_mask_irq(unsigned int irq) ++{ ++ writel(irq, IO_ADDRESS(GOLDFISH_INTERRUPT_BASE) + GOLDFISH_INTERRUPT_DISABLE); ++} ++ ++void goldfish_unmask_irq(unsigned int irq) ++{ ++ writel(irq, IO_ADDRESS(GOLDFISH_INTERRUPT_BASE) + GOLDFISH_INTERRUPT_ENABLE); ++} ++ ++static struct irq_chip goldfish_irq_chip = { ++ .name = "goldfish", ++ .mask = goldfish_mask_irq, ++ .mask_ack = goldfish_mask_irq, ++ .unmask = goldfish_unmask_irq, ++}; ++ ++void goldfish_init_irq(void) ++{ ++ unsigned int i; ++ uint32_t int_base = IO_ADDRESS(GOLDFISH_INTERRUPT_BASE); ++ ++ /* ++ * Disable all interrupt sources ++ */ ++ writel(1, int_base + GOLDFISH_INTERRUPT_DISABLE_ALL); ++ ++ for (i = 0; i < NR_IRQS; i++) { ++ set_irq_chip(i, &goldfish_irq_chip); ++ set_irq_handler(i, handle_level_irq); ++ set_irq_flags(i, IRQF_VALID | IRQF_PROBE); ++ } ++} ++ ++static struct map_desc goldfish_io_desc[] __initdata = { ++ { ++ .virtual = IO_BASE, ++ .pfn = __phys_to_pfn(IO_START), ++ .length = IO_SIZE, ++ .type = MT_DEVICE ++ }, ++}; ++ ++static void __init goldfish_map_io(void) ++{ ++ iotable_init(goldfish_io_desc, ARRAY_SIZE(goldfish_io_desc)); ++ GOLDFISH_READY = 1; ++} ++ ++extern struct sys_timer goldfish_timer; ++ ++MACHINE_START(GOLDFISH, "Goldfish") ++ .phys_io = 0xff000000, ++ .io_pg_offst = ((0xfe000000) >> 18) & 0xfffc, ++ .boot_params = 0x00000100, ++ .map_io = goldfish_map_io, ++ .init_irq = goldfish_init_irq, ++ .init_machine = goldfish_init, ++ .timer = &goldfish_timer, ++MACHINE_END +--- /dev/null ++++ b/arch/arm/mach-goldfish/include/mach/dma.h +@@ -0,0 +1 @@ ++/* include/asm-arm/arch-goldfish/dma.h */ +--- /dev/null ++++ b/arch/arm/mach-goldfish/include/mach/entry-macro.S +@@ -0,0 +1,34 @@ ++/* include/asm-arm/arch-goldfish/entry-macro.S ++** ++** Copyright (C) 2007 Google, Inc. ++** ++** This software is licensed under the terms of the GNU General Public ++** License version 2, as published by the Free Software Foundation, and ++** may be copied, distributed, and modified under those terms. ++** ++** This program is distributed in the hope that it will be useful, ++** but WITHOUT ANY WARRANTY; without even the implied warranty of ++** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++** GNU General Public License for more details. ++** ++*/ ++ ++#include <mach/hardware.h> ++#include <mach/irqs.h> ++ ++ .macro disable_fiq ++ .endm ++ ++ .macro get_irqnr_preamble, base, tmp ++ .endm ++ ++ .macro arch_ret_to_user, tmp1, tmp2 ++ .endm ++ ++ .macro get_irqnr_and_base, irqnr, irqstat, base, tmp ++ ldr \base, =IO_ADDRESS(GOLDFISH_INTERRUPT_BASE) ++ ldr \irqnr, [\base, #GOLDFISH_INTERRUPT_NUMBER] ++ ldr \irqstat, [\base, #GOLDFISH_INTERRUPT_STATUS] ++ teq \irqstat, #0 ++ /* EQ will be set if no irqs pending */ ++ .endm +--- /dev/null ++++ b/arch/arm/mach-goldfish/include/mach/hardware.h +@@ -0,0 +1,44 @@ ++/* include/asm-arm/arch-goldfish/hardware.h ++** ++** Copyright (C) 2007 Google, Inc. ++** ++** This software is licensed under the terms of the GNU General Public ++** License version 2, as published by the Free Software Foundation, and ++** may be copied, distributed, and modified under those terms. ++** ++** This program is distributed in the hope that it will be useful, ++** but WITHOUT ANY WARRANTY; without even the implied warranty of ++** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++** GNU General Public License for more details. ++** ++*/ ++ ++#ifndef __ASM_ARCH_HARDWARE_H ++#define __ASM_ARCH_HARDWARE_H ++ ++#include <asm/sizes.h> ++ ++/* ++ * Where in virtual memory the IO devices (timers, system controllers ++ * and so on) ++ */ ++#define IO_BASE 0xfe000000 // VA of IO ++#define IO_SIZE 0x00800000 // How much? ++#define IO_START 0xff000000 // PA of IO ++ ++#define GOLDFISH_INTERRUPT_BASE (0x0) ++#define GOLDFISH_INTERRUPT_STATUS (0x00) // number of pending interrupts ++#define GOLDFISH_INTERRUPT_NUMBER (0x04) ++#define GOLDFISH_INTERRUPT_DISABLE_ALL (0x08) ++#define GOLDFISH_INTERRUPT_DISABLE (0x0c) ++#define GOLDFISH_INTERRUPT_ENABLE (0x10) ++ ++#define GOLDFISH_PDEV_BUS_BASE (0x1000) ++#define GOLDFISH_PDEV_BUS_END (0x100) ++ ++#define GOLDFISH_TIMER_BASE (0x3000) ++ ++/* macro to get at IO space when running virtually */ ++#define IO_ADDRESS(x) ((x) + IO_BASE) ++ ++#endif +--- /dev/null ++++ b/arch/arm/mach-goldfish/include/mach/io.h +@@ -0,0 +1,24 @@ ++/* include/asm-arm/arch-goldfish/io.h ++** ++** Copyright (C) 2007 Google, Inc. ++** ++** This software is licensed under the terms of the GNU General Public ++** License version 2, as published by the Free Software Foundation, and ++** may be copied, distributed, and modified under those terms. ++** ++** This program is distributed in the hope that it will be useful, ++** but WITHOUT ANY WARRANTY; without even the implied warranty of ++** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++** GNU General Public License for more details. ++** ++*/ ++ ++#ifndef __ASM_ARM_ARCH_IO_H ++#define __ASM_ARM_ARCH_IO_H ++ ++#define IO_SPACE_LIMIT 0xffffffff ++ ++#define __io(a) ((void __iomem *)(a)) ++#define __mem_pci(a) (a) ++ ++#endif +--- /dev/null ++++ b/arch/arm/mach-goldfish/include/mach/irqs.h +@@ -0,0 +1,24 @@ ++/* include/asm-arm/arch-goldfish/irqs.h ++** ++** Copyright (C) 2007 Google, Inc. ++** ++** This software is licensed under the terms of the GNU General Public ++** License version 2, as published by the Free Software Foundation, and ++** may be copied, distributed, and modified under those terms. ++** ++** This program is distributed in the hope that it will be useful, ++** but WITHOUT ANY WARRANTY; without even the implied warranty of ++** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++** GNU General Public License for more details. ++** ++*/ ++ ++#ifndef __ASM_ARCH_IRQS_H ++#define __ASM_ARCH_IRQS_H ++ ++#define IRQ_PDEV_BUS (1) ++#define IRQ_TIMER (3) ++ ++#define NR_IRQS (256) ++ ++#endif +--- /dev/null ++++ b/arch/arm/mach-goldfish/include/mach/memory.h +@@ -0,0 +1,35 @@ ++/* include/asm-arm/arch-goldfish/memory.h ++** ++** Copyright (C) 2007 Google, Inc. ++** ++** This software is licensed under the terms of the GNU General Public ++** License version 2, as published by the Free Software Foundation, and ++** may be copied, distributed, and modified under those terms. ++** ++** This program is distributed in the hope that it will be useful, ++** but WITHOUT ANY WARRANTY; without even the implied warranty of ++** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++** GNU General Public License for more details. ++** ++*/ ++ ++#ifndef __ASM_ARCH_MEMORY_H ++#define __ASM_ARCH_MEMORY_H ++ ++/* ++ * Physical DRAM offset. ++ */ ++#define PHYS_OFFSET UL(0x00000000) ++#define BUS_OFFSET UL(0x00000000) ++ ++/* ++ * Virtual view <-> DMA view memory address translations ++ * virt_to_bus: Used to translate the virtual address to an ++ * address suitable to be passed to set_dma_addr ++ * bus_to_virt: Used to convert an address for DMA operations ++ * to an address that the kernel can use. ++ */ ++#define __virt_to_bus(x) (x - PAGE_OFFSET + BUS_OFFSET) ++#define __bus_to_virt(x) (x - BUS_OFFSET + PAGE_OFFSET) ++ ++#endif +--- /dev/null ++++ b/arch/arm/mach-goldfish/include/mach/system.h +@@ -0,0 +1,30 @@ ++/* include/asm-arm/arch-goldfish/system.h ++** ++** Copyright (C) 2007 Google, Inc. ++** ++** This software is licensed under the terms of the GNU General Public ++** License version 2, as published by the Free Software Foundation, and ++** may be copied, distributed, and modified under those terms. ++** ++** This program is distributed in the hope that it will be useful, ++** but WITHOUT ANY WARRANTY; without even the implied warranty of ++** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++** GNU General Public License for more details. ++** ++*/ ++ ++#ifndef __ASM_ARCH_SYSTEM_H ++#define __ASM_ARCH_SYSTEM_H ++ ++#include <asm/proc-fns.h> ++ ++static inline void arch_idle(void) ++{ ++ cpu_do_idle(); ++} ++ ++static inline void arch_reset(char mode, const char *cmd) ++{ ++} ++ ++#endif +--- /dev/null ++++ b/arch/arm/mach-goldfish/include/mach/timer.h +@@ -0,0 +1,28 @@ ++/* include/asm-arm/arch-goldfish/timer.h ++** ++** Copyright (C) 2007 Google, Inc. ++** ++** This software is licensed under the terms of the GNU General Public ++** License version 2, as published by the Free Software Foundation, and ++** may be copied, distributed, and modified under those terms. ++** ++** This program is distributed in the hope that it will be useful, ++** but WITHOUT ANY WARRANTY; without even the implied warranty of ++** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++** GNU General Public License for more details. ++** ++*/ ++ ++#ifndef __ASM_ARCH_TIMER_H ++#define __ASM_ARCH_TIMER_H ++ ++enum { ++ TIMER_TIME_LOW = 0x00, // get low bits of current time and update TIMER_TIME_HIGH ++ TIMER_TIME_HIGH = 0x04, // get high bits of time at last TIMER_TIME_LOW read ++ TIMER_ALARM_LOW = 0x08, // set low bits of alarm and activate it ++ TIMER_ALARM_HIGH = 0x0c, // set high bits of next alarm ++ TIMER_CLEAR_INTERRUPT = 0x10, ++ TIMER_CLEAR_ALARM = 0x14 ++}; ++ ++#endif +--- /dev/null ++++ b/arch/arm/mach-goldfish/include/mach/timex.h +@@ -0,0 +1,24 @@ ++/* include/asm-arm/arch-goldfish/timex.h ++** ++** Copyright (C) 2007 Google, Inc. ++** ++** This software is licensed under the terms of the GNU General Public ++** License version 2, as published by the Free Software Foundation, and ++** may be copied, distributed, and modified under those terms. ++** ++** This program is distributed in the hope that it will be useful, ++** but WITHOUT ANY WARRANTY; without even the implied warranty of ++** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++** GNU General Public License for more details. ++** ++*/ ++ ++#ifndef __ASM_ARCH_TIMEX_H ++#define __ASM_ARCH_TIMEX_H ++ ++/* ++ * ?? ++ */ ++#define CLOCK_TICK_RATE (50000000 / 16) ++ ++#endif +--- /dev/null ++++ b/arch/arm/mach-goldfish/include/mach/uncompress.h +@@ -0,0 +1,40 @@ ++/* include/asm-arm/arch-goldfish/uncompress.h ++** ++** Copyright (C) 2007 Google, Inc. ++** ++** This software is licensed under the terms of the GNU General Public ++** License version 2, as published by the Free Software Foundation, and ++** may be copied, distributed, and modified under those terms. ++** ++** This program is distributed in the hope that it will be useful, ++** but WITHOUT ANY WARRANTY; without even the implied warranty of ++** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++** GNU General Public License for more details. ++** ++*/ ++ ++#ifndef __ASM_ARCH_UNCOMPRESS_H ++#define __ASM_ARCH_UNCOMPRESS_H ++ ++#define GOLDFISH_TTY_PUT_CHAR (*(volatile unsigned int *)0xff002000) ++ ++/* ++ * This does not append a newline ++ */ ++static void putc(int c) ++{ ++ GOLDFISH_TTY_PUT_CHAR = c; ++} ++ ++static inline void flush(void) ++{ ++} ++ ++/* ++ * nothing to do ++ */ ++#define arch_decomp_setup() ++ ++#define arch_decomp_wdog() ++ ++#endif +--- /dev/null ++++ b/arch/arm/mach-goldfish/include/mach/vmalloc.h +@@ -0,0 +1,21 @@ ++/* include/asm-arm/arch-goldfish/vmalloc.h ++** ++** Copyright (C) 2007 Google, Inc. ++** ++** This software is licensed under the terms of the GNU General Public ++** License version 2, as published by the Free Software Foundation, and ++** may be copied, distributed, and modified under those terms. ++** ++** This program is distributed in the hope that it will be useful, ++** but WITHOUT ANY WARRANTY; without even the implied warranty of ++** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++** GNU General Public License for more details. ++** ++*/ ++ ++#ifndef __ASM_ARCH_VMALLOC_H ++#define __ASM_ARCH_VMALLOC_H ++ ++#define VMALLOC_END (PAGE_OFFSET + 0x3c000000) ++ ++#endif +--- /dev/null ++++ b/arch/arm/mach-goldfish/pdev_bus.c +@@ -0,0 +1,222 @@ ++/* arch/arm/mach-goldfish/pdev_bus.c ++** ++** Copyright (C) 2007 Google, Inc. ++** ++** This software is licensed under the terms of the GNU General Public ++** License version 2, as published by the Free Software Foundation, and ++** may be copied, distributed, and modified under those terms. ++** ++** This program is distributed in the hope that it will be useful, ++** but WITHOUT ANY WARRANTY; without even the implied warranty of ++** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++** GNU General Public License for more details. ++** ++*/ ++ ++#include <linux/kernel.h> ++#include <linux/init.h> ++#include <linux/interrupt.h> ++#include <linux/irq.h> ++#include <linux/platform_device.h> ++ ++#include <mach/hardware.h> ++#include <asm/io.h> ++#include <asm/mach-types.h> ++#include <asm/mach/arch.h> ++ ++#define PDEV_BUS_OP_DONE (0x00) ++#define PDEV_BUS_OP_REMOVE_DEV (0x04) ++#define PDEV_BUS_OP_ADD_DEV (0x08) ++ ++#define PDEV_BUS_OP_INIT (0x00) ++ ++#define PDEV_BUS_OP (0x00) ++#define PDEV_BUS_GET_NAME (0x04) ++#define PDEV_BUS_NAME_LEN (0x08) ++#define PDEV_BUS_ID (0x0c) ++#define PDEV_BUS_IO_BASE (0x10) ++#define PDEV_BUS_IO_SIZE (0x14) ++#define PDEV_BUS_IRQ (0x18) ++#define PDEV_BUS_IRQ_COUNT (0x1c) ++ ++struct pdev_bus_dev { ++ struct list_head list; ++ struct platform_device pdev; ++ struct resource resources[0]; ++}; ++ ++static void goldfish_pdev_worker(struct work_struct *work); ++ ++static uint32_t pdev_bus_base; ++static uint32_t pdev_bus_irq; ++static LIST_HEAD(pdev_bus_new_devices); ++static LIST_HEAD(pdev_bus_registered_devices); ++static LIST_HEAD(pdev_bus_removed_devices); ++static DECLARE_WORK(pdev_bus_worker, goldfish_pdev_worker); ++ ++ ++static void goldfish_pdev_worker(struct work_struct *work) ++{ ++ int ret; ++ struct pdev_bus_dev *pos, *n; ++ ++ list_for_each_entry_safe(pos, n, &pdev_bus_removed_devices, list) { ++ list_del(&pos->list); ++ platform_device_unregister(&pos->pdev); ++ kfree(pos); ++ } ++ list_for_each_entry_safe(pos, n, &pdev_bus_new_devices, list) { ++ list_del(&pos->list); ++ ret = platform_device_register(&pos->pdev); ++ if(ret) { ++ printk("goldfish_pdev_worker failed to register device, %s\n", pos->pdev.name); ++ } ++ else { ++ printk("goldfish_pdev_worker registered %s\n", pos->pdev.name); ++ } ++ list_add(&pos->list, &pdev_bus_registered_devices); ++ } ++} ++ ++static void goldfish_pdev_remove(void) ++{ ++ struct pdev_bus_dev *pos, *n; ++ uint32_t base; ++ ++ base = readl(pdev_bus_base + PDEV_BUS_IO_BASE); ++ ++ list_for_each_entry_safe(pos, n, &pdev_bus_new_devices, list) { ++ if(pos->resources[0].start == base) { ++ list_del(&pos->list); ++ kfree(pos); ++ return; ++ } ++ } ++ list_for_each_entry_safe(pos, n, &pdev_bus_registered_devices, list) { ++ if(pos->resources[0].start == base) { ++ list_del(&pos->list); ++ list_add(&pos->list, &pdev_bus_removed_devices); ++ schedule_work(&pdev_bus_worker); ++ return; ++ } ++ }; ++ printk("goldfish_pdev_remove could not find device at %x\n", base); ++} ++ ++static int goldfish_new_pdev(void) ++{ ++ struct pdev_bus_dev *dev; ++ uint32_t name_len; ++ uint32_t irq = -1, irq_count; ++ int resource_count = 2; ++ uint32_t base; ++ char *name; ++ ++ base = readl(pdev_bus_base + PDEV_BUS_IO_BASE); ++ ++ irq_count = readl(pdev_bus_base + PDEV_BUS_IRQ_COUNT); ++ name_len = readl(pdev_bus_base + PDEV_BUS_NAME_LEN); ++ if(irq_count) ++ resource_count++; ++ ++ dev = kzalloc(sizeof(*dev) + sizeof(struct resource) * resource_count + name_len + 1, GFP_ATOMIC); ++ if(dev == NULL) ++ return -ENOMEM; ++ ++ dev->pdev.num_resources = resource_count; ++ dev->pdev.resource = (struct resource *)(dev + 1); ++ dev->pdev.name = name = (char *)(dev->pdev.resource + resource_count); ++ dev->pdev.dev.coherent_dma_mask = ~0; ++ ++ writel(name, pdev_bus_base + PDEV_BUS_GET_NAME); ++ name[name_len] = '\0'; ++ dev->pdev.id = readl(pdev_bus_base + PDEV_BUS_ID); ++ dev->pdev.resource[0].start = base; ++ dev->pdev.resource[0].end = base + readl(pdev_bus_base + PDEV_BUS_IO_SIZE) - 1; ++ dev->pdev.resource[0].flags = IORESOURCE_MEM; ++ if(irq_count) { ++ irq = readl(pdev_bus_base + PDEV_BUS_IRQ); ++ dev->pdev.resource[1].start = irq; ++ dev->pdev.resource[1].end = irq + irq_count - 1; ++ dev->pdev.resource[1].flags = IORESOURCE_IRQ; ++ } ++ ++ printk("goldfish_new_pdev %s at %x irq %d\n", name, base, irq); ++ list_add(&dev->list, &pdev_bus_new_devices); ++ schedule_work(&pdev_bus_worker); ++ ++ return 0; ++} ++ ++static irqreturn_t goldfish_pdev_bus_interrupt(int irq, void *dev_id) ++{ ++ irqreturn_t ret = IRQ_NONE; ++ while(1) { ++ uint32_t op = readl(pdev_bus_base + PDEV_BUS_OP); ++ switch(op) { ++ case PDEV_BUS_OP_DONE: ++ return IRQ_NONE; ++ ++ case PDEV_BUS_OP_REMOVE_DEV: ++ goldfish_pdev_remove(); ++ break; ++ ++ case PDEV_BUS_OP_ADD_DEV: ++ goldfish_new_pdev(); ++ break; ++ } ++ ret = IRQ_HANDLED; ++ } ++} ++ ++static int __devinit goldfish_pdev_bus_probe(struct platform_device *pdev) ++{ ++ int ret; ++ struct resource *r; ++ r = platform_get_resource(pdev, IORESOURCE_IO, 0); ++ if(r == NULL) ++ return -EINVAL; ++ pdev_bus_base = IO_ADDRESS(r->start); ++ ++ r = platform_get_resource(pdev, IORESOURCE_IRQ, 0); ++ if(r == NULL) ++ return -EINVAL; ++ pdev_bus_irq = r->start; ++ ++ ret = request_irq(pdev_bus_irq, goldfish_pdev_bus_interrupt, IRQF_SHARED, "goldfish_pdev_bus", pdev); ++ if(ret) ++ goto err_request_irq_failed; ++ ++ writel(PDEV_BUS_OP_INIT, pdev_bus_base + PDEV_BUS_OP); ++ ++err_request_irq_failed: ++ return ret; ++} ++ ++static int __devexit goldfish_pdev_bus_remove(struct platform_device *pdev) ++{ ++ free_irq(pdev_bus_irq, pdev); ++ return 0; ++} ++ ++static struct platform_driver goldfish_pdev_bus_driver = { ++ .probe = goldfish_pdev_bus_probe, ++ .remove = __devexit_p(goldfish_pdev_bus_remove), ++ .driver = { ++ .name = "goldfish_pdev_bus" ++ } ++}; ++ ++static int __init goldfish_pdev_bus_init(void) ++{ ++ return platform_driver_register(&goldfish_pdev_bus_driver); ++} ++ ++static void __exit goldfish_pdev_bus_exit(void) ++{ ++ platform_driver_unregister(&goldfish_pdev_bus_driver); ++} ++ ++module_init(goldfish_pdev_bus_init); ++module_exit(goldfish_pdev_bus_exit); ++ +--- /dev/null ++++ b/arch/arm/mach-goldfish/timer.c +@@ -0,0 +1,147 @@ ++/* arch/arm/mach-goldfish/timer.c ++** ++** Copyright (C) 2007 Google, Inc. ++** ++** This software is licensed under the terms of the GNU General Public ++** License version 2, as published by the Free Software Foundation, and ++** may be copied, distributed, and modified under those terms. ++** ++** This program is distributed in the hope that it will be useful, ++** but WITHOUT ANY WARRANTY; without even the implied warranty of ++** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++** GNU General Public License for more details. ++** ++*/ ++ ++#include <linux/clockchips.h> ++#include <linux/interrupt.h> ++#include <linux/irq.h> ++ ++#include <mach/timer.h> ++#include <mach/hardware.h> ++#include <asm/io.h> ++#include <asm/mach/time.h> ++ ++#include <linux/platform_device.h> ++ ++static DEFINE_SPINLOCK(goldfish_timer_lock); ++static int goldfish_timer_ready; ++ ++static irqreturn_t goldfish_timer_interrupt(int irq, void *dev_id) ++{ ++ uint32_t timer_base = IO_ADDRESS(GOLDFISH_TIMER_BASE); ++ struct clock_event_device *evt = dev_id; ++ ++ writel(1, timer_base + TIMER_CLEAR_INTERRUPT); ++ if (evt->event_handler) ++ evt->event_handler(evt); ++ return IRQ_HANDLED; ++} ++ ++static cycle_t goldfish_timer_read(void) ++{ ++ uint32_t timer_base = IO_ADDRESS(GOLDFISH_TIMER_BASE); ++ unsigned long irqflags; ++ cycle_t rv; ++ ++ spin_lock_irqsave(&goldfish_timer_lock, irqflags); ++ rv = readl(timer_base + TIMER_TIME_LOW); ++ rv |= (int64_t)readl(timer_base + TIMER_TIME_HIGH) << 32; ++ spin_unlock_irqrestore(&goldfish_timer_lock, irqflags); ++ return rv; ++} ++ ++static int goldfish_timer_set_next_event(unsigned long cycles, ++ struct clock_event_device *evt) ++{ ++ uint32_t timer_base = IO_ADDRESS(GOLDFISH_TIMER_BASE); ++ unsigned long irqflags; ++ uint64_t alarm; ++ ++ spin_lock_irqsave(&goldfish_timer_lock, irqflags); ++ alarm = readl(timer_base + TIMER_TIME_LOW); ++ alarm |= (int64_t)readl(timer_base + TIMER_TIME_HIGH) << 32; ++ alarm += cycles; ++ writel(alarm >> 32, timer_base + TIMER_ALARM_HIGH); ++ writel(alarm, timer_base + TIMER_ALARM_LOW); ++ spin_unlock_irqrestore(&goldfish_timer_lock, irqflags); ++ return 0; ++} ++ ++static void goldfish_timer_set_mode(enum clock_event_mode mode, ++ struct clock_event_device *evt) ++{ ++ uint32_t timer_base = IO_ADDRESS(GOLDFISH_TIMER_BASE); ++ switch (mode) { ++ case CLOCK_EVT_MODE_RESUME: ++ case CLOCK_EVT_MODE_PERIODIC: ++ break; ++ case CLOCK_EVT_MODE_ONESHOT: ++ break; ++ case CLOCK_EVT_MODE_UNUSED: ++ case CLOCK_EVT_MODE_SHUTDOWN: ++ writel(1, timer_base + TIMER_CLEAR_ALARM); ++ break; ++ } ++} ++ ++unsigned long long sched_clock(void) ++{ ++ if(goldfish_timer_ready) ++ return ktime_to_ns(ktime_get()); ++ else ++ return 0; ++} ++ ++static struct clock_event_device goldfish_clockevent = { ++ .name = "goldfish_timer", ++ .features = CLOCK_EVT_FEAT_ONESHOT, ++ .max_delta_ns = ULONG_MAX, ++ .min_delta_ns = 1, ++ .mult = 1, ++ .shift = 0, ++ .rating = 200, ++ .set_next_event = goldfish_timer_set_next_event, ++ .set_mode = goldfish_timer_set_mode, ++}; ++ ++static struct clocksource goldfish_clocksource = { ++ .name = "goldfish_timer", ++ .rating = 200, ++ .read = goldfish_timer_read, ++ .mult = 1, ++ .mask = CLOCKSOURCE_MASK(64), ++ .shift = 0, ++ .flags = CLOCK_SOURCE_IS_CONTINUOUS, ++}; ++ ++static struct irqaction goldfish_timer_irq = { ++ .name = "Goldfish Timer Tick", ++ .flags = IRQF_DISABLED | IRQF_TIMER, ++ .handler = goldfish_timer_interrupt, ++ .dev_id = &goldfish_clockevent, ++}; ++ ++static void __init goldfish_timer_init(void) ++{ ++ int res; ++ ++ res = clocksource_register(&goldfish_clocksource); ++ if (res) ++ printk(KERN_ERR "goldfish_timer_init: " ++ "clocksource_register failed\n"); ++ ++ res = setup_irq(IRQ_TIMER, &goldfish_timer_irq); ++ if (res) ++ printk(KERN_ERR "goldfish_timer_init: setup_irq failed\n"); ++ ++ goldfish_clockevent.cpumask = cpumask_of(0); ++ clockevents_register_device(&goldfish_clockevent); ++ ++ goldfish_timer_ready = 1; ++} ++ ++struct sys_timer goldfish_timer = { ++ .init = goldfish_timer_init, ++}; ++ diff --git a/target/linux/goldfish/patches-2.6.30/0120--ARM-goldfish-Add-audio-driver-for-goldfish.patch b/target/linux/goldfish/patches-2.6.30/0120--ARM-goldfish-Add-audio-driver-for-goldfish.patch new file mode 100644 index 0000000000..23f4b8f659 --- /dev/null +++ b/target/linux/goldfish/patches-2.6.30/0120--ARM-goldfish-Add-audio-driver-for-goldfish.patch @@ -0,0 +1,404 @@ +From aefe5257bf3ed9bf950ad962a63e5315566c2f97 Mon Sep 17 00:00:00 2001 +From: Mike Lockwood <lockwood@google.com> +Date: Mon, 23 Jul 2007 09:31:54 -0400 +Subject: [PATCH 120/134] [ARM] goldfish: Add audio driver for goldfish. + +Signed-off-by: Mike A. Chan <mikechan@google.com> +--- + arch/arm/mach-goldfish/Makefile | 2 +- + arch/arm/mach-goldfish/audio.c | 379 +++++++++++++++++++++++++++++++++++++++ + 2 files changed, 380 insertions(+), 1 deletions(-) + create mode 100644 arch/arm/mach-goldfish/audio.c + +--- a/arch/arm/mach-goldfish/Makefile ++++ b/arch/arm/mach-goldfish/Makefile +@@ -4,6 +4,6 @@ + + # Object file lists. + +-obj-y := pdev_bus.o timer.o ++obj-y := pdev_bus.o timer.o audio.o + obj-$(CONFIG_MACH_GOLDFISH) += board-goldfish.o + +--- /dev/null ++++ b/arch/arm/mach-goldfish/audio.c +@@ -0,0 +1,379 @@ ++/* arch/arm/mach-goldfish/audio.c ++** ++** Copyright (C) 2007 Google, Inc. ++** ++** This software is licensed under the terms of the GNU General Public ++** License version 2, as published by the Free Software Foundation, and ++** may be copied, distributed, and modified under those terms. ++** ++** This program is distributed in the hope that it will be useful, ++** but WITHOUT ANY WARRANTY; without even the implied warranty of ++** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++** GNU General Public License for more details. ++** ++*/ ++ ++#include <linux/module.h> ++#include <linux/miscdevice.h> ++#include <linux/fs.h> ++#include <linux/platform_device.h> ++ ++#include <linux/types.h> ++#include <linux/pci.h> ++#include <linux/interrupt.h> ++ ++#include <asm/types.h> ++#include <asm/io.h> ++#include <asm/uaccess.h> ++ ++ ++MODULE_AUTHOR("Google, Inc."); ++MODULE_DESCRIPTION("Android QEMU Audio Driver"); ++MODULE_LICENSE("GPL"); ++MODULE_VERSION("1.0"); ++ ++struct goldfish_audio { ++ uint32_t reg_base; ++ int irq; ++ spinlock_t lock; ++ wait_queue_head_t wait; ++ ++ char __iomem *buffer_virt; /* combined buffer virtual address */ ++ unsigned long buffer_phys; /* combined buffer physical address */ ++ ++ char __iomem *write_buffer1; /* write buffer 1 virtual address */ ++ char __iomem *write_buffer2; /* write buffer 2 virtual address */ ++ char __iomem *read_buffer; /* read buffer virtual address */ ++ int buffer_status; ++ int read_supported; /* true if we have audio input support */ ++}; ++ ++/* We will allocate two read buffers and two write buffers. ++ Having two read buffers facilitate stereo -> mono conversion. ++ Having two write buffers facilitate interleaved IO. ++*/ ++#define READ_BUFFER_SIZE 16384 ++#define WRITE_BUFFER_SIZE 16384 ++#define COMBINED_BUFFER_SIZE ((2 * READ_BUFFER_SIZE) + (2 * WRITE_BUFFER_SIZE)) ++ ++#define GOLDFISH_AUDIO_READ(data, addr) (readl(data->reg_base + addr)) ++#define GOLDFISH_AUDIO_WRITE(data, addr, x) (writel(x, data->reg_base + addr)) ++ ++/* temporary variable used between goldfish_audio_probe() and goldfish_audio_open() */ ++static struct goldfish_audio* audio_data; ++ ++enum { ++ /* audio status register */ ++ AUDIO_INT_STATUS = 0x00, ++ /* set this to enable IRQ */ ++ AUDIO_INT_ENABLE = 0x04, ++ /* set these to specify buffer addresses */ ++ AUDIO_SET_WRITE_BUFFER_1 = 0x08, ++ AUDIO_SET_WRITE_BUFFER_2 = 0x0C, ++ /* set number of bytes in buffer to write */ ++ AUDIO_WRITE_BUFFER_1 = 0x10, ++ AUDIO_WRITE_BUFFER_2 = 0x14, ++ ++ /* true if audio input is supported */ ++ AUDIO_READ_SUPPORTED = 0x18, ++ /* buffer to use for audio input */ ++ AUDIO_SET_READ_BUFFER = 0x1C, ++ ++ /* driver writes number of bytes to read */ ++ AUDIO_START_READ = 0x20, ++ ++ /* number of bytes available in read buffer */ ++ AUDIO_READ_BUFFER_AVAILABLE = 0x24, ++ ++ /* AUDIO_INT_STATUS bits */ ++ ++ /* this bit set when it is safe to write more bytes to the buffer */ ++ AUDIO_INT_WRITE_BUFFER_1_EMPTY = 1U << 0, ++ AUDIO_INT_WRITE_BUFFER_2_EMPTY = 1U << 1, ++ AUDIO_INT_READ_BUFFER_FULL = 1U << 2, ++ ++ AUDIO_INT_MASK = AUDIO_INT_WRITE_BUFFER_1_EMPTY | ++ AUDIO_INT_WRITE_BUFFER_2_EMPTY | ++ AUDIO_INT_READ_BUFFER_FULL, ++}; ++ ++ ++static atomic_t open_count = ATOMIC_INIT(0); ++ ++ ++static ssize_t goldfish_audio_read(struct file *fp, char __user *buf, ++ size_t count, loff_t *pos) ++{ ++ struct goldfish_audio* data = fp->private_data; ++ int length; ++ int result = 0; ++ ++ if (!data->read_supported) ++ return -ENODEV; ++ ++ while (count > 0) { ++ length = (count > READ_BUFFER_SIZE ? READ_BUFFER_SIZE : count); ++ GOLDFISH_AUDIO_WRITE(data, AUDIO_START_READ, length); ++ ++ wait_event_interruptible(data->wait, (data->buffer_status & AUDIO_INT_READ_BUFFER_FULL)); ++ ++ length = GOLDFISH_AUDIO_READ(data, AUDIO_READ_BUFFER_AVAILABLE); ++ ++ /* copy data to user space */ ++ if (copy_to_user(buf, data->read_buffer, length)) ++ { ++ printk("copy_from_user failed!\n"); ++ return -EFAULT; ++ } ++ ++ result += length; ++ buf += length; ++ count -= length; ++ } ++ ++ return result; ++} ++ ++static ssize_t goldfish_audio_write(struct file *fp, const char __user *buf, ++ size_t count, loff_t *pos) ++{ ++ struct goldfish_audio* data = fp->private_data; ++ unsigned long irq_flags; ++ ssize_t result = 0; ++ char __iomem *kbuf; ++ ++ while (count > 0) ++ { ++ ssize_t copy = count; ++ if (copy > WRITE_BUFFER_SIZE) ++ copy = WRITE_BUFFER_SIZE; ++ wait_event_interruptible(data->wait, ++ (data->buffer_status & (AUDIO_INT_WRITE_BUFFER_1_EMPTY | AUDIO_INT_WRITE_BUFFER_2_EMPTY))); ++ ++ if ((data->buffer_status & AUDIO_INT_WRITE_BUFFER_1_EMPTY) != 0) { ++ kbuf = data->write_buffer1; ++ } else { ++ kbuf = data->write_buffer2; ++ } ++ ++ /* copy from user space to the appropriate buffer */ ++ if (copy_from_user(kbuf, buf, copy)) ++ { ++ printk("copy_from_user failed!\n"); ++ result = -EFAULT; ++ break; ++ } ++ else ++ { ++ spin_lock_irqsave(&data->lock, irq_flags); ++ ++ /* clear the buffer empty flag, and signal the emulator to start writing the buffer */ ++ if (kbuf == data->write_buffer1) { ++ data->buffer_status &= ~AUDIO_INT_WRITE_BUFFER_1_EMPTY; ++ GOLDFISH_AUDIO_WRITE(data, AUDIO_WRITE_BUFFER_1, copy); ++ } else { ++ data->buffer_status &= ~AUDIO_INT_WRITE_BUFFER_2_EMPTY; ++ GOLDFISH_AUDIO_WRITE(data, AUDIO_WRITE_BUFFER_2, copy); ++ } ++ ++ spin_unlock_irqrestore(&data->lock, irq_flags); ++ } ++ ++ buf += copy; ++ result += copy; ++ count -= copy; ++ } ++ ++ return result; ++} ++ ++static int goldfish_audio_open(struct inode *ip, struct file *fp) ++{ ++ if (!audio_data) ++ return -ENODEV; ++ ++ if (atomic_inc_return(&open_count) == 1) ++ { ++ fp->private_data = audio_data; ++ audio_data->buffer_status = (AUDIO_INT_WRITE_BUFFER_1_EMPTY | AUDIO_INT_WRITE_BUFFER_2_EMPTY); ++ GOLDFISH_AUDIO_WRITE(audio_data, AUDIO_INT_ENABLE, AUDIO_INT_MASK); ++ return 0; ++ } ++ else ++ { ++ atomic_dec(&open_count); ++ return -EBUSY; ++ } ++} ++ ++static int goldfish_audio_release(struct inode *ip, struct file* fp) ++{ ++ atomic_dec(&open_count); ++ GOLDFISH_AUDIO_WRITE(audio_data, AUDIO_INT_ENABLE, 0); ++ return 0; ++} ++ ++static int goldfish_audio_ioctl(struct inode* ip, struct file* fp, unsigned int cmd, unsigned long arg) ++{ ++ /* temporary workaround, until we switch to the ALSA API */ ++ if (cmd == 315) ++ return -1; ++ else ++ return 0; ++} ++ ++static irqreturn_t ++goldfish_audio_interrupt(int irq, void *dev_id) ++{ ++ unsigned long irq_flags; ++ struct goldfish_audio *data = dev_id; ++ uint32_t status; ++ ++ spin_lock_irqsave(&data->lock, irq_flags); ++ ++ /* read buffer status flags */ ++ status = GOLDFISH_AUDIO_READ(data, AUDIO_INT_STATUS); ++ status &= AUDIO_INT_MASK; ++ /* if buffers are newly empty, wake up blocked goldfish_audio_write() call */ ++ if(status) { ++ data->buffer_status = status; ++ wake_up(&data->wait); ++ } ++ ++ spin_unlock_irqrestore(&data->lock, irq_flags); ++ return status ? IRQ_HANDLED : IRQ_NONE; ++} ++ ++/* file operations for /dev/eac */ ++static struct file_operations goldfish_audio_fops = { ++ .owner = THIS_MODULE, ++ .read = goldfish_audio_read, ++ .write = goldfish_audio_write, ++ .open = goldfish_audio_open, ++ .release = goldfish_audio_release, ++ .ioctl = goldfish_audio_ioctl, ++ ++}; ++ ++static struct miscdevice goldfish_audio_device = { ++ .minor = MISC_DYNAMIC_MINOR, ++ .name = "eac", ++ .fops = &goldfish_audio_fops, ++}; ++ ++static int goldfish_audio_probe(struct platform_device *pdev) ++{ ++ int ret; ++ struct resource *r; ++ struct goldfish_audio *data; ++ dma_addr_t buf_addr; ++ ++printk("goldfish_audio_probe\n"); ++ data = kzalloc(sizeof(*data), GFP_KERNEL); ++ if(data == NULL) { ++ ret = -ENOMEM; ++ goto err_data_alloc_failed; ++ } ++ spin_lock_init(&data->lock); ++ init_waitqueue_head(&data->wait); ++ platform_set_drvdata(pdev, data); ++ ++ r = platform_get_resource(pdev, IORESOURCE_MEM, 0); ++ if(r == NULL) { ++ printk("platform_get_resource failed\n"); ++ ret = -ENODEV; ++ goto err_no_io_base; ++ } ++ data->reg_base = IO_ADDRESS(r->start - IO_START); ++ ++ data->irq = platform_get_irq(pdev, 0); ++ if(data->irq < 0) { ++ printk("platform_get_irq failed\n"); ++ ret = -ENODEV; ++ goto err_no_irq; ++ } ++ ++ data->buffer_virt = dma_alloc_writecombine(&pdev->dev, COMBINED_BUFFER_SIZE, ++ &buf_addr, GFP_KERNEL); ++ if(data->buffer_virt == 0) { ++ ret = -ENOMEM; ++ goto err_alloc_write_buffer_failed; ++ } ++ data->buffer_phys = buf_addr; ++ data->write_buffer1 = data->buffer_virt; ++ data->write_buffer2 = data->buffer_virt + WRITE_BUFFER_SIZE; ++ data->read_buffer = data->buffer_virt + 2 * WRITE_BUFFER_SIZE; ++ ++ ret = request_irq(data->irq, goldfish_audio_interrupt, IRQF_SHARED, pdev->name, data); ++ if(ret) ++ goto err_request_irq_failed; ++ ++ if((ret = misc_register(&goldfish_audio_device))) ++ { ++ printk("misc_register returned %d in goldfish_audio_init\n", ret); ++ goto err_misc_register_failed; ++ } ++ ++ ++ GOLDFISH_AUDIO_WRITE(data, AUDIO_SET_WRITE_BUFFER_1, buf_addr); ++ GOLDFISH_AUDIO_WRITE(data, AUDIO_SET_WRITE_BUFFER_2, buf_addr + WRITE_BUFFER_SIZE); ++ ++ data->read_supported = GOLDFISH_AUDIO_READ(data, AUDIO_READ_SUPPORTED); ++ if (data->read_supported) ++ GOLDFISH_AUDIO_WRITE(data, AUDIO_SET_READ_BUFFER, buf_addr + 2 * WRITE_BUFFER_SIZE); ++ ++ audio_data = data; ++ return 0; ++ ++err_misc_register_failed: ++err_request_irq_failed: ++ dma_free_writecombine(&pdev->dev, COMBINED_BUFFER_SIZE, data->buffer_virt, data->buffer_phys); ++err_alloc_write_buffer_failed: ++err_no_irq: ++err_no_io_base: ++ kfree(data); ++err_data_alloc_failed: ++ return ret; ++} ++ ++static int goldfish_audio_remove(struct platform_device *pdev) ++{ ++ struct goldfish_audio *data = platform_get_drvdata(pdev); ++ ++ misc_deregister(&goldfish_audio_device); ++ free_irq(data->irq, data); ++ dma_free_writecombine(&pdev->dev, COMBINED_BUFFER_SIZE, data->buffer_virt, data->buffer_phys); ++ kfree(data); ++ audio_data = NULL; ++ return 0; ++} ++ ++static struct platform_driver goldfish_audio_driver = { ++ .probe = goldfish_audio_probe, ++ .remove = goldfish_audio_remove, ++ .driver = { ++ .name = "goldfish_audio" ++ } ++}; ++ ++static int __init goldfish_audio_init(void) ++{ ++ int ret; ++ ++ ret = platform_driver_register(&goldfish_audio_driver); ++ if (ret < 0) ++ { ++ printk("platform_driver_register returned %d\n", ret); ++ return ret; ++ } ++ ++ return ret; ++} ++ ++static void __exit goldfish_audio_exit(void) ++{ ++ platform_driver_unregister(&goldfish_audio_driver); ++} ++ ++module_init(goldfish_audio_init); ++module_exit(goldfish_audio_exit); diff --git a/target/linux/goldfish/patches-2.6.30/0121--ARM-goldfish-Implement-suspend-as-wait-for-interr.patch b/target/linux/goldfish/patches-2.6.30/0121--ARM-goldfish-Implement-suspend-as-wait-for-interr.patch new file mode 100644 index 0000000000..0190820ed8 --- /dev/null +++ b/target/linux/goldfish/patches-2.6.30/0121--ARM-goldfish-Implement-suspend-as-wait-for-interr.patch @@ -0,0 +1,72 @@ +From f0266de1899f043daff3b472b8fdd6e30012cb25 Mon Sep 17 00:00:00 2001 +From: =?utf-8?q?Arve=20Hj=C3=B8nnev=C3=A5g?= <arve@android.com> +Date: Wed, 9 Jan 2008 11:46:33 -0800 +Subject: [PATCH 121/134] [ARM] goldfish: Implement suspend as wait-for-interrupt. +MIME-Version: 1.0 +Content-Type: text/plain; charset=utf-8 +Content-Transfer-Encoding: 8bit + +Signed-off-by: Mike A. Chan <mikechan@google.com> +Signed-off-by: Arve HjønnevÃ¥g <arve@android.com> +--- + arch/arm/mach-goldfish/Makefile | 2 +- + arch/arm/mach-goldfish/pm.c | 43 +++++++++++++++++++++++++++++++++++++++ + 2 files changed, 44 insertions(+), 1 deletions(-) + create mode 100644 arch/arm/mach-goldfish/pm.c + +--- a/arch/arm/mach-goldfish/Makefile ++++ b/arch/arm/mach-goldfish/Makefile +@@ -4,6 +4,6 @@ + + # Object file lists. + +-obj-y := pdev_bus.o timer.o audio.o ++obj-y := pdev_bus.o timer.o audio.o pm.o + obj-$(CONFIG_MACH_GOLDFISH) += board-goldfish.o + +--- /dev/null ++++ b/arch/arm/mach-goldfish/pm.c +@@ -0,0 +1,43 @@ ++/* arch/arm/mach-msm/pm.c ++ * ++ * Goldfish Power Management Routines ++ * ++ * Copyright (C) 2007 Google, Inc. ++ * ++ * This software is licensed under the terms of the GNU General Public ++ * License version 2, as published by the Free Software Foundation, and ++ * may be copied, distributed, and modified under those terms. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ * ++ */ ++ ++#include <linux/module.h> ++#include <linux/kernel.h> ++#include <linux/init.h> ++#include <linux/pm.h> ++#include <linux/suspend.h> ++#include <mach/system.h> ++ ++static int goldfish_pm_enter(suspend_state_t state) ++{ ++ arch_idle(); ++ return 0; ++} ++ ++static struct platform_suspend_ops goldfish_pm_ops = { ++ .enter = goldfish_pm_enter, ++ .valid = suspend_valid_only_mem, ++}; ++ ++static int __init goldfish_pm_init(void) ++{ ++ suspend_set_ops(&goldfish_pm_ops); ++ return 0; ++} ++ ++__initcall(goldfish_pm_init); ++ diff --git a/target/linux/goldfish/patches-2.6.30/0122--ARM-goldfish-tty-Adding-tty-driver-for-goldfish.patch b/target/linux/goldfish/patches-2.6.30/0122--ARM-goldfish-tty-Adding-tty-driver-for-goldfish.patch new file mode 100644 index 0000000000..e8767e6bdd --- /dev/null +++ b/target/linux/goldfish/patches-2.6.30/0122--ARM-goldfish-tty-Adding-tty-driver-for-goldfish.patch @@ -0,0 +1,368 @@ +From 4ff5a10b94c0c41088c8bbfa5be1ebab3822371b Mon Sep 17 00:00:00 2001 +From: =?utf-8?q?Arve=20Hj=C3=B8nnev=C3=A5g?= <arve@google.com> +Date: Fri, 29 Jun 2007 21:41:20 -0700 +Subject: [PATCH 122/134] [ARM] goldfish: tty: Adding tty driver for goldfish. +MIME-Version: 1.0 +Content-Type: text/plain; charset=utf-8 +Content-Transfer-Encoding: 8bit + +Signed-off-by: Mike A. Chan <mikechan@google.com> +Signed-off-by: Arve HjønnevÃ¥g <arve@android.com> +--- + drivers/char/Kconfig | 6 + + drivers/char/Makefile | 1 + + drivers/char/goldfish_tty.c | 323 +++++++++++++++++++++++++++++++++++++++++++ + 3 files changed, 330 insertions(+), 0 deletions(-) + create mode 100644 drivers/char/goldfish_tty.c + +--- a/drivers/char/Kconfig ++++ b/drivers/char/Kconfig +@@ -1106,6 +1106,12 @@ config DEVPORT + depends on ISA || PCI + default y + ++config GOLDFISH_TTY ++ tristate "Goldfish TTY Driver" ++ default n ++ help ++ TTY driver for Goldfish Virtual Platform. ++ + source "drivers/s390/char/Kconfig" + + endmenu +--- a/drivers/char/Makefile ++++ b/drivers/char/Makefile +@@ -98,6 +98,7 @@ obj-$(CONFIG_GPIO_DEVICE) += gpio_dev.o + obj-$(CONFIG_GPIO_VR41XX) += vr41xx_giu.o + obj-$(CONFIG_GPIO_TB0219) += tb0219.o + obj-$(CONFIG_TELCLOCK) += tlclk.o ++obj-$(CONFIG_GOLDFISH_TTY) += goldfish_tty.o + + obj-$(CONFIG_MWAVE) += mwave/ + obj-$(CONFIG_AGP) += agp/ +--- /dev/null ++++ b/drivers/char/goldfish_tty.c +@@ -0,0 +1,323 @@ ++/* drivers/char/goldfish_tty.c ++** ++** Copyright (C) 2007 Google, Inc. ++** ++** This software is licensed under the terms of the GNU General Public ++** License version 2, as published by the Free Software Foundation, and ++** may be copied, distributed, and modified under those terms. ++** ++** This program is distributed in the hope that it will be useful, ++** but WITHOUT ANY WARRANTY; without even the implied warranty of ++** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++** GNU General Public License for more details. ++** ++*/ ++ ++#include <linux/console.h> ++#include <linux/init.h> ++#include <linux/interrupt.h> ++#include <linux/platform_device.h> ++#include <linux/tty.h> ++#include <linux/tty_flip.h> ++ ++#include <mach/hardware.h> ++#include <asm/io.h> ++ ++enum { ++ GOLDFISH_TTY_PUT_CHAR = 0x00, ++ GOLDFISH_TTY_BYTES_READY = 0x04, ++ GOLDFISH_TTY_CMD = 0x08, ++ ++ GOLDFISH_TTY_DATA_PTR = 0x10, ++ GOLDFISH_TTY_DATA_LEN = 0x14, ++ ++ GOLDFISH_TTY_CMD_INT_DISABLE = 0, ++ GOLDFISH_TTY_CMD_INT_ENABLE = 1, ++ GOLDFISH_TTY_CMD_WRITE_BUFFER = 2, ++ GOLDFISH_TTY_CMD_READ_BUFFER = 3, ++}; ++ ++struct goldfish_tty { ++ spinlock_t lock; ++ uint32_t base; ++ uint32_t irq; ++ int opencount; ++ struct tty_struct *tty; ++ struct console console; ++}; ++ ++static DEFINE_MUTEX(goldfish_tty_lock); ++static struct tty_driver *goldfish_tty_driver; ++static uint32_t goldfish_tty_line_count = 8; ++static uint32_t goldfish_tty_current_line_count; ++static struct goldfish_tty *goldfish_ttys; ++ ++static void goldfish_tty_do_write(int line, const char *buf, unsigned count) ++{ ++ unsigned long irq_flags; ++ struct goldfish_tty *qtty = &goldfish_ttys[line]; ++ uint32_t base = qtty->base; ++ spin_lock_irqsave(&qtty->lock, irq_flags); ++ writel(buf, base + GOLDFISH_TTY_DATA_PTR); ++ writel(count, base + GOLDFISH_TTY_DATA_LEN); ++ writel(GOLDFISH_TTY_CMD_WRITE_BUFFER, base + GOLDFISH_TTY_CMD); ++ spin_unlock_irqrestore(&qtty->lock, irq_flags); ++} ++ ++static irqreturn_t goldfish_tty_interrupt(int irq, void *dev_id) ++{ ++ struct platform_device *pdev = dev_id; ++ struct goldfish_tty *qtty = &goldfish_ttys[pdev->id]; ++ uint32_t base = qtty->base; ++ unsigned long irq_flags; ++ unsigned char *buf; ++ uint32_t count; ++ ++ count = readl(base + GOLDFISH_TTY_BYTES_READY); ++ if(count == 0) { ++ return IRQ_NONE; ++ } ++ count = tty_prepare_flip_string(qtty->tty, &buf, count); ++ spin_lock_irqsave(&qtty->lock, irq_flags); ++ writel(buf, base + GOLDFISH_TTY_DATA_PTR); ++ writel(count, base + GOLDFISH_TTY_DATA_LEN); ++ writel(GOLDFISH_TTY_CMD_READ_BUFFER, base + GOLDFISH_TTY_CMD); ++ spin_unlock_irqrestore(&qtty->lock, irq_flags); ++ tty_schedule_flip(qtty->tty); ++ return IRQ_HANDLED; ++} ++ ++static int goldfish_tty_open(struct tty_struct * tty, struct file * filp) ++{ ++ int ret; ++ struct goldfish_tty *qtty = &goldfish_ttys[tty->index]; ++ ++ mutex_lock(&goldfish_tty_lock); ++ if(qtty->tty == NULL || qtty->tty == tty) { ++ if(qtty->opencount++ == 0) { ++ qtty->tty = tty; ++ writel(GOLDFISH_TTY_CMD_INT_ENABLE, qtty->base + GOLDFISH_TTY_CMD); ++ } ++ ret = 0; ++ } ++ else ++ ret = -EBUSY; ++ mutex_unlock(&goldfish_tty_lock); ++ return ret; ++} ++ ++static void goldfish_tty_close(struct tty_struct * tty, struct file * filp) ++{ ++ struct goldfish_tty *qtty = &goldfish_ttys[tty->index]; ++ ++ mutex_lock(&goldfish_tty_lock); ++ if(qtty->tty == tty) { ++ if(--qtty->opencount == 0) { ++ writel(GOLDFISH_TTY_CMD_INT_DISABLE, qtty->base + GOLDFISH_TTY_CMD); ++ qtty->tty = NULL; ++ } ++ } ++ mutex_unlock(&goldfish_tty_lock); ++} ++ ++static int goldfish_tty_write(struct tty_struct * tty, const unsigned char *buf, int count) ++{ ++ goldfish_tty_do_write(tty->index, buf, count); ++ return count; ++} ++ ++static int goldfish_tty_write_room(struct tty_struct *tty) ++{ ++ return 0x10000; ++} ++ ++static int goldfish_tty_chars_in_buffer(struct tty_struct *tty) ++{ ++ struct goldfish_tty *qtty = &goldfish_ttys[tty->index]; ++ uint32_t base = qtty->base; ++ return readl(base + GOLDFISH_TTY_BYTES_READY); ++} ++ ++static void goldfish_tty_console_write(struct console *co, const char *b, unsigned count) ++{ ++ goldfish_tty_do_write(co->index, b, count); ++} ++ ++static struct tty_driver *goldfish_tty_console_device(struct console *c, int *index) ++{ ++ *index = c->index; ++ return goldfish_tty_driver; ++} ++ ++static int goldfish_tty_console_setup(struct console *co, char *options) ++{ ++ if((unsigned)co->index > goldfish_tty_line_count) ++ return -ENODEV; ++ if(goldfish_ttys[co->index].base == 0) ++ return -ENODEV; ++ return 0; ++} ++ ++static struct tty_operations goldfish_tty_ops = { ++ .open = goldfish_tty_open, ++ .close = goldfish_tty_close, ++ .write = goldfish_tty_write, ++ .write_room = goldfish_tty_write_room, ++ .chars_in_buffer = goldfish_tty_chars_in_buffer, ++}; ++ ++static int __devinit goldfish_tty_create_driver(void) ++{ ++ int ret; ++ struct tty_driver *tty; ++ ++ goldfish_ttys = kzalloc(sizeof(*goldfish_ttys) * goldfish_tty_line_count, GFP_KERNEL); ++ if(goldfish_ttys == NULL) { ++ ret = -ENOMEM; ++ goto err_alloc_goldfish_ttys_failed; ++ } ++ ++ tty = alloc_tty_driver(goldfish_tty_line_count); ++ if(tty == NULL) { ++ ret = -ENOMEM; ++ goto err_alloc_tty_driver_failed; ++ } ++ tty->driver_name = "goldfish"; ++ tty->name = "ttyS"; ++ tty->type = TTY_DRIVER_TYPE_SERIAL; ++ tty->subtype = SERIAL_TYPE_NORMAL; ++ tty->init_termios = tty_std_termios; ++ tty->flags = TTY_DRIVER_RESET_TERMIOS | TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV; ++ tty_set_operations(tty, &goldfish_tty_ops); ++ ret = tty_register_driver(tty); ++ if(ret) ++ goto err_tty_register_driver_failed; ++ ++ goldfish_tty_driver = tty; ++ return 0; ++ ++err_tty_register_driver_failed: ++ put_tty_driver(tty); ++err_alloc_tty_driver_failed: ++ kfree(goldfish_ttys); ++ goldfish_ttys = NULL; ++err_alloc_goldfish_ttys_failed: ++ return ret; ++} ++ ++static void goldfish_tty_delete_driver(void) ++{ ++ tty_unregister_driver(goldfish_tty_driver); ++ put_tty_driver(goldfish_tty_driver); ++ goldfish_tty_driver = NULL; ++ kfree(goldfish_ttys); ++ goldfish_ttys = NULL; ++} ++ ++static int __devinit goldfish_tty_probe(struct platform_device *pdev) ++{ ++ int ret; ++ int i; ++ struct resource *r; ++ struct device *ttydev; ++ uint32_t base; ++ uint32_t irq; ++ ++ r = platform_get_resource(pdev, IORESOURCE_MEM, 0); ++ if(r == NULL) ++ return -EINVAL; ++ base = IO_ADDRESS(r->start - IO_START); ++ r = platform_get_resource(pdev, IORESOURCE_IRQ, 0); ++ if(r == NULL) ++ return -EINVAL; ++ irq = r->start; ++ ++ if(pdev->id >= goldfish_tty_line_count) ++ return -EINVAL; ++ ++ mutex_lock(&goldfish_tty_lock); ++ if(goldfish_tty_current_line_count == 0) { ++ ret = goldfish_tty_create_driver(); ++ if(ret) ++ goto err_create_driver_failed; ++ } ++ goldfish_tty_current_line_count++; ++ ++ spin_lock_init(&goldfish_ttys[pdev->id].lock); ++ goldfish_ttys[pdev->id].base = base; ++ goldfish_ttys[pdev->id].irq = irq; ++ ++ writel(GOLDFISH_TTY_CMD_INT_DISABLE, base + GOLDFISH_TTY_CMD); ++ ++ ret = request_irq(irq, goldfish_tty_interrupt, IRQF_SHARED, "goldfish_tty", pdev); ++ if(ret) ++ goto err_request_irq_failed; ++ ++ ++ ttydev = tty_register_device(goldfish_tty_driver, pdev->id, NULL); ++ if(IS_ERR(ttydev)) { ++ ret = PTR_ERR(ttydev); ++ goto err_tty_register_device_failed; ++ } ++ ++ strcpy(goldfish_ttys[pdev->id].console.name, "ttyS"); ++ goldfish_ttys[pdev->id].console.write = goldfish_tty_console_write; ++ goldfish_ttys[pdev->id].console.device = goldfish_tty_console_device; ++ goldfish_ttys[pdev->id].console.setup = goldfish_tty_console_setup; ++ goldfish_ttys[pdev->id].console.flags = CON_PRINTBUFFER; ++ goldfish_ttys[pdev->id].console.index = pdev->id; ++ register_console(&goldfish_ttys[pdev->id].console); ++ ++ ++ mutex_unlock(&goldfish_tty_lock); ++ ++ return 0; ++ ++ tty_unregister_device(goldfish_tty_driver, i); ++err_tty_register_device_failed: ++ free_irq(irq, pdev); ++err_request_irq_failed: ++ goldfish_tty_current_line_count--; ++ if(goldfish_tty_current_line_count == 0) { ++ goldfish_tty_delete_driver(); ++ } ++err_create_driver_failed: ++ mutex_unlock(&goldfish_tty_lock); ++ return ret; ++} ++ ++static int __devexit goldfish_tty_remove(struct platform_device *pdev) ++{ ++ mutex_lock(&goldfish_tty_lock); ++ unregister_console(&goldfish_ttys[pdev->id].console); ++ tty_unregister_device(goldfish_tty_driver, pdev->id); ++ goldfish_ttys[pdev->id].base = 0; ++ free_irq(goldfish_ttys[pdev->id].irq, pdev); ++ goldfish_tty_current_line_count--; ++ if(goldfish_tty_current_line_count == 0) { ++ goldfish_tty_delete_driver(); ++ } ++ mutex_unlock(&goldfish_tty_lock); ++ return 0; ++} ++ ++static struct platform_driver goldfish_tty_platform_driver = { ++ .probe = goldfish_tty_probe, ++ .remove = __devexit_p(goldfish_tty_remove), ++ .driver = { ++ .name = "goldfish_tty" ++ } ++}; ++ ++static int __init goldfish_tty_init(void) ++{ ++ return platform_driver_register(&goldfish_tty_platform_driver); ++} ++ ++static void __exit goldfish_tty_exit(void) ++{ ++ platform_driver_unregister(&goldfish_tty_platform_driver); ++} ++ ++module_init(goldfish_tty_init); ++module_exit(goldfish_tty_exit); diff --git a/target/linux/goldfish/patches-2.6.30/0123--ARM-goldfish-events-Add-event-driver-for-goldfis.patch b/target/linux/goldfish/patches-2.6.30/0123--ARM-goldfish-events-Add-event-driver-for-goldfis.patch new file mode 100644 index 0000000000..fd9566e7a7 --- /dev/null +++ b/target/linux/goldfish/patches-2.6.30/0123--ARM-goldfish-events-Add-event-driver-for-goldfis.patch @@ -0,0 +1,234 @@ +From 226fd290dc2d052e5cd437cc8464e1424e7ebf2c Mon Sep 17 00:00:00 2001 +From: Brian Swetland <swetland@google.com> +Date: Sun, 13 Aug 2006 21:50:14 +0700 +Subject: [PATCH 123/134] [ARM] goldfish: events: Add event driver for goldfish + +this device is a direct pipe from "hardware" to the input +event subsystem, allowing us to avoid having to route +"keypad" style events through an AT keyboard driver (gross!) + +Signed-off-by: Mike A. Chan <mikechan@google.com> +--- + drivers/input/keyboard/Kconfig | 5 + + drivers/input/keyboard/Makefile | 1 + + drivers/input/keyboard/goldfish_events.c | 190 ++++++++++++++++++++++++++++++ + 3 files changed, 196 insertions(+), 0 deletions(-) + create mode 100644 drivers/input/keyboard/goldfish_events.c + +--- a/drivers/input/keyboard/Kconfig ++++ b/drivers/input/keyboard/Kconfig +@@ -304,6 +304,11 @@ config KEYBOARD_GPIO + To compile this driver as a module, choose M here: the + module will be called gpio-keys. + ++config KEYBOARD_GOLDFISH_EVENTS ++ tristate "Generic Input Event device for Goldfish" ++ help ++ no help ++ + config KEYBOARD_MAPLE + tristate "Maple bus keyboard" + depends on SH_DREAMCAST && MAPLE +--- a/drivers/input/keyboard/Makefile ++++ b/drivers/input/keyboard/Makefile +@@ -23,6 +23,7 @@ obj-$(CONFIG_KEYBOARD_PXA27x) += pxa27x + obj-$(CONFIG_KEYBOARD_PXA930_ROTARY) += pxa930_rotary.o + obj-$(CONFIG_KEYBOARD_AAED2000) += aaed2000_kbd.o + obj-$(CONFIG_KEYBOARD_GPIO) += gpio_keys.o ++obj-$(CONFIG_KEYBOARD_GOLDFISH_EVENTS) += goldfish_events.o + obj-$(CONFIG_KEYBOARD_HP6XX) += jornada680_kbd.o + obj-$(CONFIG_KEYBOARD_HP7XX) += jornada720_kbd.o + obj-$(CONFIG_KEYBOARD_MAPLE) += maple_keyb.o +--- /dev/null ++++ b/drivers/input/keyboard/goldfish_events.c +@@ -0,0 +1,190 @@ ++/* drivers/input/keyboard/goldfish-events.c ++** ++** Copyright (C) 2007 Google, Inc. ++** ++** This software is licensed under the terms of the GNU General Public ++** License version 2, as published by the Free Software Foundation, and ++** may be copied, distributed, and modified under those terms. ++** ++** This program is distributed in the hope that it will be useful, ++** but WITHOUT ANY WARRANTY; without even the implied warranty of ++** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++** GNU General Public License for more details. ++** ++*/ ++ ++#include <linux/module.h> ++#include <linux/init.h> ++#include <linux/interrupt.h> ++#include <linux/types.h> ++#include <linux/input.h> ++#include <linux/kernel.h> ++#include <linux/platform_device.h> ++ ++#include <mach/hardware.h> ++#include <asm/irq.h> ++#include <asm/io.h> ++ ++enum { ++ REG_READ = 0x00, ++ REG_SET_PAGE = 0x00, ++ REG_LEN = 0x04, ++ REG_DATA = 0x08, ++ ++ PAGE_NAME = 0x00000, ++ PAGE_EVBITS = 0x10000, ++ PAGE_ABSDATA = 0x20000 | EV_ABS, ++}; ++ ++struct event_dev { ++ struct input_dev *input; ++ int irq; ++ unsigned addr; ++ char name[0]; ++}; ++ ++static irqreturn_t events_interrupt(int irq, void *dev_id) ++{ ++ struct event_dev *edev = dev_id; ++ unsigned type, code, value; ++ ++ type = __raw_readl(edev->addr + REG_READ); ++ code = __raw_readl(edev->addr + REG_READ); ++ value = __raw_readl(edev->addr + REG_READ); ++ ++ input_event(edev->input, type, code, value); ++ return IRQ_HANDLED; ++} ++ ++static void events_import_bits(struct event_dev *edev, unsigned long bits[], unsigned type, size_t count) ++{ ++ int i, j; ++ size_t size; ++ uint8_t val; ++ unsigned addr = edev->addr; ++ __raw_writel(PAGE_EVBITS | type, addr + REG_SET_PAGE); ++ size = __raw_readl(addr + REG_LEN) * 8; ++ if (size < count) ++ count = size; ++ addr = addr + REG_DATA; ++ for (i = 0; i < count; i += 8) { ++ val = __raw_readb(addr++); ++ for (j = 0; j < 8; j++) ++ if(val & 1 << j) ++ set_bit(i + j, bits); ++ } ++} ++ ++static int events_probe(struct platform_device *pdev) ++{ ++ struct input_dev *input_dev; ++ struct event_dev *edev = NULL; ++ struct resource *res; ++ unsigned keymapnamelen; ++ int i; ++ int count; ++ int irq; ++ unsigned addr; ++ int ret; ++ ++ printk("*** events probe ***\n"); ++ ++ input_dev = input_allocate_device(); ++ res = platform_get_resource(pdev, IORESOURCE_MEM, 0); ++ if(!input_dev || !res) goto fail; ++ ++ addr = (unsigned) ioremap(res->start, 4096); ++ irq = platform_get_irq(pdev, 0); ++ ++ printk("events_probe() addr=0x%08x irq=%d\n", addr, irq); ++ ++ if(!addr) goto fail; ++ if(irq < 0) goto fail; ++ ++ __raw_writel(PAGE_NAME, addr + REG_SET_PAGE); ++ keymapnamelen = __raw_readl(addr + REG_LEN); ++ ++ edev = kzalloc(sizeof(struct event_dev) + keymapnamelen + 1, GFP_KERNEL); ++ if (!edev) goto fail; ++ ++ edev->input = input_dev; ++ edev->addr = addr; ++ edev->irq = irq; ++ ++ for (i = 0; i < keymapnamelen; i++) { ++ edev->name[i] = __raw_readb(edev->addr + REG_DATA + i); ++ } ++ printk("events_probe() keymap=%s\n", edev->name); ++ ++ events_import_bits(edev, input_dev->evbit, EV_SYN, EV_MAX); ++ events_import_bits(edev, input_dev->keybit, EV_KEY, KEY_MAX); ++ events_import_bits(edev, input_dev->relbit, EV_REL, REL_MAX); ++ events_import_bits(edev, input_dev->absbit, EV_ABS, ABS_MAX); ++ events_import_bits(edev, input_dev->mscbit, EV_MSC, MSC_MAX); ++ events_import_bits(edev, input_dev->ledbit, EV_LED, LED_MAX); ++ events_import_bits(edev, input_dev->sndbit, EV_SND, SND_MAX); ++ events_import_bits(edev, input_dev->ffbit, EV_FF, FF_MAX); ++ events_import_bits(edev, input_dev->swbit, EV_SW, SW_MAX); ++ ++ __raw_writel(PAGE_ABSDATA, addr + REG_SET_PAGE); ++ count = __raw_readl(addr + REG_LEN) / (4 * 4); ++ if (count > ABS_MAX) ++ count = ABS_MAX; ++ for(i = 0; i < count; i++) { ++ int val[4]; ++ int j; ++ if (!test_bit(i, input_dev->absbit)) ++ continue; ++ for(j = 0; j < ARRAY_SIZE(val); j++) ++ val[j] = __raw_readl(edev->addr + REG_DATA + (i * ARRAY_SIZE(val) + j) * 4); ++ input_set_abs_params(input_dev, i, val[0], val[1], val[2], val[3]); ++ } ++ ++ platform_set_drvdata(pdev, edev); ++ ++ input_dev->name = edev->name; ++ input_set_drvdata(input_dev, edev); ++ ++ ret = input_register_device(input_dev); ++ if (ret) ++ goto fail; ++ ++ if(request_irq(edev->irq, events_interrupt, 0, ++ "goldfish-events-keypad", edev) < 0) { ++ input_unregister_device(input_dev); ++ kfree(edev); ++ return -EINVAL; ++ } ++ ++ return 0; ++ ++fail: ++ kfree(edev); ++ input_free_device(input_dev); ++ ++ return -EINVAL; ++} ++ ++static struct platform_driver events_driver = { ++ .probe = events_probe, ++ .driver = { ++ .name = "goldfish_events", ++ }, ++}; ++ ++static int __devinit events_init(void) ++{ ++ return platform_driver_register(&events_driver); ++} ++ ++ ++static void __exit events_exit(void) ++{ ++} ++ ++module_init(events_init); ++module_exit(events_exit); ++ ++MODULE_AUTHOR("Brian Swetland"); ++MODULE_DESCRIPTION("Goldfish Event Device"); ++MODULE_LICENSE("GPL"); diff --git a/target/linux/goldfish/patches-2.6.30/0124--ARM-goldfish-mmc-goldfish-MMC-driver-building-an.patch b/target/linux/goldfish/patches-2.6.30/0124--ARM-goldfish-mmc-goldfish-MMC-driver-building-an.patch new file mode 100644 index 0000000000..58ccbb0b12 --- /dev/null +++ b/target/linux/goldfish/patches-2.6.30/0124--ARM-goldfish-mmc-goldfish-MMC-driver-building-an.patch @@ -0,0 +1,626 @@ +From 2eccfcf4c5c50b412a0859a345d8d28fc043956b Mon Sep 17 00:00:00 2001 +From: Mike Lockwood <lockwood@android.com> +Date: Thu, 7 Feb 2008 07:47:30 -0500 +Subject: [PATCH 124/134] [ARM] goldfish: mmc: goldfish MMC driver building and runnning in 2.6.27. + +Signed-off-by: Mike A. Chan <mikechan@google.com> +--- + drivers/mmc/host/Kconfig | 8 + + drivers/mmc/host/Makefile | 1 + + drivers/mmc/host/goldfish.c | 583 +++++++++++++++++++++++++++++++++++++++++++ + 3 files changed, 592 insertions(+), 0 deletions(-) + create mode 100644 drivers/mmc/host/goldfish.c + +--- a/drivers/mmc/host/Kconfig ++++ b/drivers/mmc/host/Kconfig +@@ -200,6 +200,14 @@ config MMC_MVSDIO + To compile this driver as a module, choose M here: the + module will be called mvsdio. + ++config MMC_GOLDFISH ++ tristate "goldfish qemu Multimedia Card Interface support" ++ depends on ARCH_GOLDFISH ++ help ++ This selects the Goldfish Multimedia card Interface emulation. ++ ++ If unsure, say N. ++ + config MMC_SPI + tristate "MMC/SD/SDIO over SPI" + depends on SPI_MASTER && !HIGHMEM && HAS_DMA +--- a/drivers/mmc/host/Makefile ++++ b/drivers/mmc/host/Makefile +@@ -26,6 +26,7 @@ obj-$(CONFIG_MMC_SPI) += mmc_spi.o + ifeq ($(CONFIG_OF),y) + obj-$(CONFIG_MMC_SPI) += of_mmc_spi.o + endif ++obj-$(CONFIG_MMC_GOLDFISH) += goldfish.o + obj-$(CONFIG_MMC_S3C) += s3cmci.o + obj-$(CONFIG_MMC_SDRICOH_CS) += sdricoh_cs.o + obj-$(CONFIG_MMC_TMIO) += tmio_mmc.o +--- /dev/null ++++ b/drivers/mmc/host/goldfish.c +@@ -0,0 +1,583 @@ ++/* ++ * linux/drivers/media/mmc/goldfish.c ++ * ++ * Copyright 2007, Google Inc. ++ * ++ * based on omap.c driver, which was ++ * Copyright (C) 2004 Nokia Corporation ++ * Written by Tuukka Tikkanen and Juha Yrjölä<juha.yrjola@nokia.com> ++ * Misc hacks here and there by Tony Lindgren <tony@atomide.com> ++ * Other hacks (DMA, SD, etc) by David Brownell ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++#include <linux/module.h> ++#include <linux/platform_device.h> ++#include <linux/major.h> ++ ++#include <linux/types.h> ++#include <linux/pci.h> ++#include <linux/interrupt.h> ++ ++#include <linux/kernel.h> ++#include <linux/fs.h> ++#include <linux/errno.h> ++#include <linux/hdreg.h> ++#include <linux/kdev_t.h> ++#include <linux/blkdev.h> ++#include <linux/mutex.h> ++#include <linux/scatterlist.h> ++#include <linux/mmc/mmc.h> ++#include <linux/mmc/sdio.h> ++#include <linux/mmc/host.h> ++#include <linux/mmc/card.h> ++ ++#include <linux/moduleparam.h> ++#include <linux/init.h> ++#include <linux/ioport.h> ++#include <linux/dma-mapping.h> ++#include <linux/delay.h> ++#include <linux/spinlock.h> ++#include <linux/timer.h> ++#include <linux/clk.h> ++ ++#include <asm/io.h> ++#include <asm/irq.h> ++#include <asm/scatterlist.h> ++#include <asm/mach-types.h> ++ ++ ++#include <asm/types.h> ++#include <asm/io.h> ++#include <asm/uaccess.h> ++ ++#define DRIVER_NAME "goldfish_mmc" ++ ++#define BUFFER_SIZE 16384 ++ ++#define GOLDFISH_MMC_READ(host, addr) (readl(host->reg_base + addr)) ++#define GOLDFISH_MMC_WRITE(host, addr, x) (writel(x, host->reg_base + addr)) ++ ++ ++enum { ++ /* status register */ ++ MMC_INT_STATUS = 0x00, ++ /* set this to enable IRQ */ ++ MMC_INT_ENABLE = 0x04, ++ /* set this to specify buffer address */ ++ MMC_SET_BUFFER = 0x08, ++ ++ /* MMC command number */ ++ MMC_CMD = 0x0C, ++ ++ /* MMC argument */ ++ MMC_ARG = 0x10, ++ ++ /* MMC response (or R2 bits 0 - 31) */ ++ MMC_RESP_0 = 0x14, ++ ++ /* MMC R2 response bits 32 - 63 */ ++ MMC_RESP_1 = 0x18, ++ ++ /* MMC R2 response bits 64 - 95 */ ++ MMC_RESP_2 = 0x1C, ++ ++ /* MMC R2 response bits 96 - 127 */ ++ MMC_RESP_3 = 0x20, ++ ++ MMC_BLOCK_LENGTH = 0x24, ++ MMC_BLOCK_COUNT = 0x28, ++ ++ /* MMC state flags */ ++ MMC_STATE = 0x2C, ++ ++ /* MMC_INT_STATUS bits */ ++ ++ MMC_STAT_END_OF_CMD = 1U << 0, ++ MMC_STAT_END_OF_DATA = 1U << 1, ++ MMC_STAT_STATE_CHANGE = 1U << 2, ++ ++ /* MMC_STATE bits */ ++ MMC_STATE_INSERTED = 1U << 0, ++ MMC_STATE_READ_ONLY = 1U << 1, ++}; ++ ++/* ++ * Command types ++ */ ++#define OMAP_MMC_CMDTYPE_BC 0 ++#define OMAP_MMC_CMDTYPE_BCR 1 ++#define OMAP_MMC_CMDTYPE_AC 2 ++#define OMAP_MMC_CMDTYPE_ADTC 3 ++ ++ ++struct goldfish_mmc_host { ++ struct mmc_request * mrq; ++ struct mmc_command * cmd; ++ struct mmc_data * data; ++ struct mmc_host * mmc; ++ struct device * dev; ++ unsigned char id; /* 16xx chips have 2 MMC blocks */ ++ void __iomem *virt_base; ++ unsigned int phys_base; ++ int irq; ++ unsigned char bus_mode; ++ unsigned char hw_bus_mode; ++ ++ unsigned int sg_len; ++ unsigned dma_done:1; ++ unsigned dma_in_use:1; ++ ++ struct work_struct switch_work; ++ int switch_last_state; ++ ++ uint32_t reg_base; ++}; ++ ++static inline int ++goldfish_mmc_cover_is_open(struct goldfish_mmc_host *host) ++{ ++ return 0; ++} ++ ++static ssize_t ++goldfish_mmc_show_cover_switch(struct device *dev, ++ struct device_attribute *attr, char *buf) ++{ ++ struct goldfish_mmc_host *host = dev_get_drvdata(dev); ++ ++ return sprintf(buf, "%s\n", goldfish_mmc_cover_is_open(host) ? "open" : ++ "closed"); ++} ++ ++static DEVICE_ATTR(cover_switch, S_IRUGO, goldfish_mmc_show_cover_switch, NULL); ++ ++static void ++goldfish_mmc_start_command(struct goldfish_mmc_host *host, struct mmc_command *cmd) ++{ ++ u32 cmdreg; ++ u32 resptype; ++ u32 cmdtype; ++ ++ host->cmd = cmd; ++ ++ resptype = 0; ++ cmdtype = 0; ++ ++ /* Our hardware needs to know exact type */ ++ switch (mmc_resp_type(cmd)) { ++ case MMC_RSP_NONE: ++ break; ++ case MMC_RSP_R1: ++ case MMC_RSP_R1B: ++ /* resp 1, 1b, 6, 7 */ ++ resptype = 1; ++ break; ++ case MMC_RSP_R2: ++ resptype = 2; ++ break; ++ case MMC_RSP_R3: ++ resptype = 3; ++ break; ++ default: ++ dev_err(mmc_dev(host->mmc), "Invalid response type: %04x\n", mmc_resp_type(cmd)); ++ break; ++ } ++ ++ if (mmc_cmd_type(cmd) == MMC_CMD_ADTC) { ++ cmdtype = OMAP_MMC_CMDTYPE_ADTC; ++ } else if (mmc_cmd_type(cmd) == MMC_CMD_BC) { ++ cmdtype = OMAP_MMC_CMDTYPE_BC; ++ } else if (mmc_cmd_type(cmd) == MMC_CMD_BCR) { ++ cmdtype = OMAP_MMC_CMDTYPE_BCR; ++ } else { ++ cmdtype = OMAP_MMC_CMDTYPE_AC; ++ } ++ ++ cmdreg = cmd->opcode | (resptype << 8) | (cmdtype << 12); ++ ++ if (host->bus_mode == MMC_BUSMODE_OPENDRAIN) ++ cmdreg |= 1 << 6; ++ ++ if (cmd->flags & MMC_RSP_BUSY) ++ cmdreg |= 1 << 11; ++ ++ if (host->data && !(host->data->flags & MMC_DATA_WRITE)) ++ cmdreg |= 1 << 15; ++ ++ GOLDFISH_MMC_WRITE(host, MMC_ARG, cmd->arg); ++ GOLDFISH_MMC_WRITE(host, MMC_CMD, cmdreg); ++} ++ ++static void ++goldfish_mmc_xfer_done(struct goldfish_mmc_host *host, struct mmc_data *data) ++{ ++ if (host->dma_in_use) { ++ enum dma_data_direction dma_data_dir; ++ ++ if (data->flags & MMC_DATA_WRITE) ++ dma_data_dir = DMA_TO_DEVICE; ++ else ++ dma_data_dir = DMA_FROM_DEVICE; ++ ++ if (dma_data_dir == DMA_FROM_DEVICE) { ++ // we don't really have DMA, so we need to copy from our platform driver buffer ++ uint8_t* dest = (uint8_t *)sg_virt(data->sg); ++ memcpy(dest, host->virt_base, data->sg->length); ++ } ++ ++ host->data->bytes_xfered += data->sg->length; ++ ++ dma_unmap_sg(mmc_dev(host->mmc), data->sg, host->sg_len, dma_data_dir); ++ } ++ ++ host->data = NULL; ++ host->sg_len = 0; ++ ++ /* NOTE: MMC layer will sometimes poll-wait CMD13 next, issuing ++ * dozens of requests until the card finishes writing data. ++ * It'd be cheaper to just wait till an EOFB interrupt arrives... ++ */ ++ ++ if (!data->stop) { ++ host->mrq = NULL; ++ mmc_request_done(host->mmc, data->mrq); ++ return; ++ } ++ ++ goldfish_mmc_start_command(host, data->stop); ++} ++ ++static void ++goldfish_mmc_end_of_data(struct goldfish_mmc_host *host, struct mmc_data *data) ++{ ++ if (!host->dma_in_use) { ++ goldfish_mmc_xfer_done(host, data); ++ return; ++ } ++ if (host->dma_done) ++ goldfish_mmc_xfer_done(host, data); ++} ++ ++static void ++goldfish_mmc_cmd_done(struct goldfish_mmc_host *host, struct mmc_command *cmd) ++{ ++ host->cmd = NULL; ++ if (cmd->flags & MMC_RSP_PRESENT) { ++ if (cmd->flags & MMC_RSP_136) { ++ /* response type 2 */ ++ cmd->resp[3] = ++ GOLDFISH_MMC_READ(host, MMC_RESP_0); ++ cmd->resp[2] = ++ GOLDFISH_MMC_READ(host, MMC_RESP_1); ++ cmd->resp[1] = ++ GOLDFISH_MMC_READ(host, MMC_RESP_2); ++ cmd->resp[0] = ++ GOLDFISH_MMC_READ(host, MMC_RESP_3); ++ } else { ++ /* response types 1, 1b, 3, 4, 5, 6 */ ++ cmd->resp[0] = ++ GOLDFISH_MMC_READ(host, MMC_RESP_0); ++ } ++ } ++ ++ if (host->data == NULL || cmd->error) { ++ host->mrq = NULL; ++ mmc_request_done(host->mmc, cmd->mrq); ++ } ++} ++ ++static irqreturn_t goldfish_mmc_irq(int irq, void *dev_id) ++{ ++ struct goldfish_mmc_host * host = (struct goldfish_mmc_host *)dev_id; ++ u16 status; ++ int end_command; ++ int end_transfer; ++ int transfer_error; ++ int state_changed; ++ ++ if (host->cmd == NULL && host->data == NULL) { ++ status = GOLDFISH_MMC_READ(host, MMC_INT_STATUS); ++ dev_info(mmc_dev(host->mmc),"spurious irq 0x%04x\n", status); ++ if (status != 0) { ++ GOLDFISH_MMC_WRITE(host, MMC_INT_STATUS, status); ++ GOLDFISH_MMC_WRITE(host, MMC_INT_ENABLE, 0); ++ } ++ return IRQ_HANDLED; ++ } ++ ++ end_command = 0; ++ end_transfer = 0; ++ transfer_error = 0; ++ state_changed = 0; ++ ++ while ((status = GOLDFISH_MMC_READ(host, MMC_INT_STATUS)) != 0) { ++ GOLDFISH_MMC_WRITE(host, MMC_INT_STATUS, status); ++ ++ if (status & MMC_STAT_END_OF_CMD) { ++ end_command = 1; ++ } ++ ++ if (status & MMC_STAT_END_OF_DATA) { ++ end_transfer = 1; ++ } ++ if (status & MMC_STAT_STATE_CHANGE) { ++ state_changed = 1; ++ } ++ } ++ ++ if (end_command) { ++ goldfish_mmc_cmd_done(host, host->cmd); ++ } ++ if (transfer_error) ++ goldfish_mmc_xfer_done(host, host->data); ++ else if (end_transfer) { ++ host->dma_done = 1; ++ goldfish_mmc_end_of_data(host, host->data); ++ } ++ if (state_changed) { ++ schedule_work(&host->switch_work); ++ } ++ ++ return IRQ_HANDLED; ++} ++ ++ ++static void goldfish_mmc_switch_handler(struct work_struct *work) ++{ ++/* ++ struct goldfish_mmc_host *host = container_of(work, struct goldfish_mmc_host, switch_work); ++ struct mmc_card *card; ++ static int complained = 0; ++ int cards = 0, cover_open; ++ ++ cover_open = goldfish_mmc_cover_is_open(host); ++ if (cover_open != host->switch_last_state) { ++ kobject_uevent(&host->dev->kobj, KOBJ_CHANGE); ++ host->switch_last_state = cover_open; ++ } ++ mmc_detect_change(host->mmc, 0); ++ list_for_each_entry(card, &host->mmc->cards, node) { ++ if (mmc_card_present(card)) ++ cards++; ++ } ++ if (goldfish_mmc_cover_is_open(host)) { ++ if (!complained) { ++ dev_info(mmc_dev(host->mmc), "cover is open\n"); ++ complained = 1; ++ } ++ } else { ++ complained = 0; ++ } ++*/ ++} ++ ++ ++static void ++goldfish_mmc_prepare_data(struct goldfish_mmc_host *host, struct mmc_request *req) ++{ ++ struct mmc_data *data = req->data; ++ int block_size; ++ unsigned sg_len; ++ enum dma_data_direction dma_data_dir; ++ ++ host->data = data; ++ if (data == NULL) { ++ GOLDFISH_MMC_WRITE(host, MMC_BLOCK_LENGTH, 0); ++ GOLDFISH_MMC_WRITE(host, MMC_BLOCK_COUNT, 0); ++ host->dma_in_use = 0; ++ return; ++ } ++ ++ block_size = data->blksz; ++ ++ GOLDFISH_MMC_WRITE(host, MMC_BLOCK_COUNT, data->blocks - 1); ++ GOLDFISH_MMC_WRITE(host, MMC_BLOCK_LENGTH, block_size - 1); ++ ++ /* cope with calling layer confusion; it issues "single ++ * block" writes using multi-block scatterlists. ++ */ ++ sg_len = (data->blocks == 1) ? 1 : data->sg_len; ++ ++ if (data->flags & MMC_DATA_WRITE) ++ dma_data_dir = DMA_TO_DEVICE; ++ else ++ dma_data_dir = DMA_FROM_DEVICE; ++ ++ host->sg_len = dma_map_sg(mmc_dev(host->mmc), data->sg, ++ sg_len, dma_data_dir); ++ host->dma_done = 0; ++ host->dma_in_use = 1; ++ ++ if (dma_data_dir == DMA_TO_DEVICE) { ++ // we don't really have DMA, so we need to copy to our platform driver buffer ++ const uint8_t* src = (uint8_t *)sg_virt(data->sg); ++ memcpy(host->virt_base, src, data->sg->length); ++ } ++} ++ ++static void goldfish_mmc_request(struct mmc_host *mmc, struct mmc_request *req) ++{ ++ struct goldfish_mmc_host *host = mmc_priv(mmc); ++ ++ WARN_ON(host->mrq != NULL); ++ ++ host->mrq = req; ++ goldfish_mmc_prepare_data(host, req); ++ goldfish_mmc_start_command(host, req->cmd); ++ ++ /* this is to avoid accidentally being detected as an SDIO card in mmc_attach_sdio() */ ++ if (req->cmd->opcode == SD_IO_SEND_OP_COND && ++ req->cmd->flags == (MMC_RSP_SPI_R4 | MMC_RSP_R4 | MMC_CMD_BCR)) { ++ req->cmd->error = -EINVAL; ++ } ++} ++ ++static void goldfish_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) ++{ ++ struct goldfish_mmc_host *host = mmc_priv(mmc); ++ ++ host->bus_mode = ios->bus_mode; ++ host->hw_bus_mode = host->bus_mode; ++} ++ ++static int goldfish_mmc_get_ro(struct mmc_host *mmc) ++{ ++ uint32_t state; ++ struct goldfish_mmc_host *host = mmc_priv(mmc); ++ ++ state = GOLDFISH_MMC_READ(host, MMC_STATE); ++ return ((state & MMC_STATE_READ_ONLY) != 0); ++} ++ ++static const struct mmc_host_ops goldfish_mmc_ops = { ++ .request = goldfish_mmc_request, ++ .set_ios = goldfish_mmc_set_ios, ++ .get_ro = goldfish_mmc_get_ro, ++}; ++ ++static int __init goldfish_mmc_probe(struct platform_device *pdev) ++{ ++ struct mmc_host *mmc; ++ struct goldfish_mmc_host *host = NULL; ++ struct resource *res; ++ int ret = 0; ++ int irq; ++ dma_addr_t buf_addr; ++ ++ res = platform_get_resource(pdev, IORESOURCE_MEM, 0); ++ irq = platform_get_irq(pdev, 0); ++ if (res == NULL || irq < 0) ++ return -ENXIO; ++ ++ mmc = mmc_alloc_host(sizeof(struct goldfish_mmc_host), &pdev->dev); ++ if (mmc == NULL) { ++ ret = -ENOMEM; ++ goto err_alloc_host_failed; ++ } ++ ++ host = mmc_priv(mmc); ++ host->mmc = mmc; ++ host->reg_base = IO_ADDRESS(res->start - IO_START); ++ host->virt_base = dma_alloc_writecombine(&pdev->dev, BUFFER_SIZE, ++ &buf_addr, GFP_KERNEL); ++ if(host->virt_base == 0) { ++ ret = -EBUSY; ++ goto dma_alloc_failed; ++ } ++ host->phys_base = buf_addr; ++ ++ host->id = pdev->id; ++ host->irq = irq; ++ ++ mmc->ops = &goldfish_mmc_ops; ++ mmc->f_min = 400000; ++ mmc->f_max = 24000000; ++ mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34; ++ mmc->caps = MMC_CAP_4_BIT_DATA; ++ ++ /* Use scatterlist DMA to reduce per-transfer costs. ++ * NOTE max_seg_size assumption that small blocks aren't ++ * normally used (except e.g. for reading SD registers). ++ */ ++ mmc->max_phys_segs = 32; ++ mmc->max_hw_segs = 32; ++ mmc->max_blk_size = 2048; /* MMC_BLOCK_LENGTH is 11 bits (+1) */ ++ mmc->max_blk_count = 2048; /* MMC_BLOCK_COUNT is 11 bits (+1) */ ++ mmc->max_req_size = BUFFER_SIZE; ++ mmc->max_seg_size = mmc->max_req_size; ++ ++ ret = request_irq(host->irq, goldfish_mmc_irq, 0, DRIVER_NAME, host); ++ if (ret) ++ goto err_request_irq_failed; ++ ++ host->dev = &pdev->dev; ++ platform_set_drvdata(pdev, host); ++ ++ ret = device_create_file(&pdev->dev, &dev_attr_cover_switch); ++ if (ret) ++ dev_warn(mmc_dev(host->mmc), "Unable to create sysfs attributes\n"); ++ ++ mmc_add_host(mmc); ++ ++ GOLDFISH_MMC_WRITE(host, MMC_SET_BUFFER, host->phys_base); ++ GOLDFISH_MMC_WRITE(host, MMC_INT_ENABLE, ++ MMC_STAT_END_OF_CMD | MMC_STAT_END_OF_DATA | MMC_STAT_STATE_CHANGE ++ ); ++ ++ // we start with the card present ++ kobject_uevent(&host->dev->kobj, KOBJ_CHANGE); ++ mmc_detect_change(host->mmc, 0); ++ ++ INIT_WORK(&host->switch_work, goldfish_mmc_switch_handler); ++ ++ return 0; ++ ++err_request_irq_failed: ++ dma_free_writecombine(&pdev->dev, BUFFER_SIZE, host->virt_base, host->phys_base); ++dma_alloc_failed: ++ mmc_free_host(host->mmc); ++err_alloc_host_failed: ++ return ret; ++} ++ ++static int goldfish_mmc_remove(struct platform_device *pdev) ++{ ++ struct goldfish_mmc_host *host = platform_get_drvdata(pdev); ++ ++ platform_set_drvdata(pdev, NULL); ++ ++ BUG_ON(host == NULL); ++ ++ mmc_remove_host(host->mmc); ++ free_irq(host->irq, host); ++ dma_free_writecombine(&pdev->dev, BUFFER_SIZE, host->virt_base, host->phys_base); ++ mmc_free_host(host->mmc); ++ ++ return 0; ++} ++ ++static struct platform_driver goldfish_mmc_driver = { ++ .probe = goldfish_mmc_probe, ++ .remove = goldfish_mmc_remove, ++ .driver = { ++ .name = DRIVER_NAME, ++ }, ++}; ++ ++static int __init goldfish_mmc_init(void) ++{ ++ return platform_driver_register(&goldfish_mmc_driver); ++} ++ ++static void __exit goldfish_mmc_exit(void) ++{ ++ platform_driver_unregister(&goldfish_mmc_driver); ++} ++ ++module_init(goldfish_mmc_init); ++module_exit(goldfish_mmc_exit); ++ diff --git a/target/linux/goldfish/patches-2.6.30/0125--ARM-goldfish-NAND-Add-nand-driver-for-goldfish.patch b/target/linux/goldfish/patches-2.6.30/0125--ARM-goldfish-NAND-Add-nand-driver-for-goldfish.patch new file mode 100644 index 0000000000..7aa9525350 --- /dev/null +++ b/target/linux/goldfish/patches-2.6.30/0125--ARM-goldfish-NAND-Add-nand-driver-for-goldfish.patch @@ -0,0 +1,534 @@ +From bed297dad6283a5926962c1c59f95ad641824630 Mon Sep 17 00:00:00 2001 +From: =?utf-8?q?Arve=20Hj=C3=B8nnev=C3=A5g?= <arve@google.com> +Date: Fri, 29 Jun 2007 22:20:07 -0700 +Subject: [PATCH 125/134] [ARM] goldfish: NAND: Add nand driver for goldfish. +MIME-Version: 1.0 +Content-Type: text/plain; charset=utf-8 +Content-Transfer-Encoding: 8bit + +Signed-off-by: Mike A. Chan <mikechan@google.com> +Signed-off-by: Arve HjønnevÃ¥g <arve@android.com> +--- + drivers/mtd/devices/Kconfig | 5 + + drivers/mtd/devices/Makefile | 1 + + drivers/mtd/devices/goldfish_nand.c | 418 +++++++++++++++++++++++++++++++ + drivers/mtd/devices/goldfish_nand_reg.h | 58 +++++ + 4 files changed, 482 insertions(+), 0 deletions(-) + create mode 100644 drivers/mtd/devices/goldfish_nand.c + create mode 100644 drivers/mtd/devices/goldfish_nand_reg.h + +diff --git a/drivers/mtd/devices/Kconfig b/drivers/mtd/devices/Kconfig +index 6fde0a2..0e9bdd7 100644 +--- a/drivers/mtd/devices/Kconfig ++++ b/drivers/mtd/devices/Kconfig +@@ -297,5 +297,10 @@ config MTD_DOCPROBE_55AA + LinuxBIOS or if you need to recover a DiskOnChip Millennium on which + you have managed to wipe the first block. + ++config MTD_GOLDFISH_NAND ++ tristate "Goldfish NAND device" ++ help ++ none ++ + endmenu + +diff --git a/drivers/mtd/devices/Makefile b/drivers/mtd/devices/Makefile +index 0993d5c..46cf8a8 100644 +--- a/drivers/mtd/devices/Makefile ++++ b/drivers/mtd/devices/Makefile +@@ -16,3 +16,4 @@ obj-$(CONFIG_MTD_LART) += lart.o + obj-$(CONFIG_MTD_BLOCK2MTD) += block2mtd.o + obj-$(CONFIG_MTD_DATAFLASH) += mtd_dataflash.o + obj-$(CONFIG_MTD_M25P80) += m25p80.o ++obj-$(CONFIG_MTD_GOLDFISH_NAND) += goldfish_nand.o +diff --git a/drivers/mtd/devices/goldfish_nand.c b/drivers/mtd/devices/goldfish_nand.c +new file mode 100644 +index 0000000..6b4b8b1 +--- /dev/null ++++ b/drivers/mtd/devices/goldfish_nand.c +@@ -0,0 +1,418 @@ ++/* drivers/mtd/devices/goldfish_nand.c ++** ++** Copyright (C) 2007 Google, Inc. ++** ++** This software is licensed under the terms of the GNU General Public ++** License version 2, as published by the Free Software Foundation, and ++** may be copied, distributed, and modified under those terms. ++** ++** This program is distributed in the hope that it will be useful, ++** but WITHOUT ANY WARRANTY; without even the implied warranty of ++** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++** GNU General Public License for more details. ++** ++*/ ++ ++#include <asm/div64.h> ++#include <asm/io.h> ++#include <linux/module.h> ++#include <linux/slab.h> ++#include <linux/ioport.h> ++#include <linux/vmalloc.h> ++#include <linux/init.h> ++#include <linux/mtd/compatmac.h> ++#include <linux/mtd/mtd.h> ++#include <linux/platform_device.h> ++ ++#include "goldfish_nand_reg.h" ++ ++struct goldfish_nand { ++ spinlock_t lock; ++ unsigned char __iomem *base; ++ size_t mtd_count; ++ struct mtd_info mtd[0]; ++}; ++ ++static uint32_t goldfish_nand_cmd(struct mtd_info *mtd, enum nand_cmd cmd, ++ uint64_t addr, uint32_t len, void *ptr) ++{ ++ struct goldfish_nand *nand = mtd->priv; ++ uint32_t rv; ++ unsigned long irq_flags; ++ unsigned char __iomem *base = nand->base; ++ ++ spin_lock_irqsave(&nand->lock, irq_flags); ++ writel(mtd - nand->mtd, base + NAND_DEV); ++ writel((uint32_t)(addr >> 32), base + NAND_ADDR_HIGH); ++ writel((uint32_t)addr, base + NAND_ADDR_LOW); ++ writel(len, base + NAND_TRANSFER_SIZE); ++ writel(ptr, base + NAND_DATA); ++ writel(cmd, base + NAND_COMMAND); ++ rv = readl(base + NAND_RESULT); ++ spin_unlock_irqrestore(&nand->lock, irq_flags); ++ return rv; ++} ++ ++static int goldfish_nand_erase(struct mtd_info *mtd, struct erase_info *instr) ++{ ++ loff_t ofs = instr->addr; ++ uint32_t len = instr->len; ++ uint32_t rem; ++ ++ if (ofs + len > mtd->size) ++ goto invalid_arg; ++ rem = do_div(ofs, mtd->writesize); ++ if(rem) ++ goto invalid_arg; ++ ofs *= (mtd->writesize + mtd->oobsize); ++ ++ if(len % mtd->writesize) ++ goto invalid_arg; ++ len = len / mtd->writesize * (mtd->writesize + mtd->oobsize); ++ ++ if(goldfish_nand_cmd(mtd, NAND_CMD_ERASE, ofs, len, NULL) != len) { ++ printk("goldfish_nand_erase: erase failed, start %llx, len %x, dev_size " ++ "%llx, erase_size %x\n", ofs, len, mtd->size, mtd->erasesize); ++ return -EIO; ++ } ++ ++ instr->state = MTD_ERASE_DONE; ++ mtd_erase_callback(instr); ++ ++ return 0; ++ ++invalid_arg: ++ printk("goldfish_nand_erase: invalid erase, start %llx, len %x, dev_size " ++ "%llx, erase_size %x\n", ofs, len, mtd->size, mtd->erasesize); ++ return -EINVAL; ++} ++ ++static int goldfish_nand_read_oob(struct mtd_info *mtd, loff_t ofs, ++ struct mtd_oob_ops *ops) ++{ ++ uint32_t rem; ++ ++ if(ofs + ops->len > mtd->size) ++ goto invalid_arg; ++ if(ops->datbuf && ops->len && ops->len != mtd->writesize) ++ goto invalid_arg; ++ if(ops->ooblen + ops->ooboffs > mtd->oobsize) ++ goto invalid_arg; ++ ++ rem = do_div(ofs, mtd->writesize); ++ if(rem) ++ goto invalid_arg; ++ ofs *= (mtd->writesize + mtd->oobsize); ++ ++ if(ops->datbuf) ++ ops->retlen = goldfish_nand_cmd(mtd, NAND_CMD_READ, ofs, ++ ops->len, ops->datbuf); ++ ofs += mtd->writesize + ops->ooboffs; ++ if(ops->oobbuf) ++ ops->oobretlen = goldfish_nand_cmd(mtd, NAND_CMD_READ, ofs, ++ ops->ooblen, ops->oobbuf); ++ return 0; ++ ++invalid_arg: ++ printk("goldfish_nand_read_oob: invalid read, start %llx, len %x, " ++ "ooblen %x, dev_size %llx, write_size %x\n", ++ ofs, ops->len, ops->ooblen, mtd->size, mtd->writesize); ++ return -EINVAL; ++} ++ ++static int goldfish_nand_write_oob(struct mtd_info *mtd, loff_t ofs, ++ struct mtd_oob_ops *ops) ++{ ++ uint32_t rem; ++ ++ if(ofs + ops->len > mtd->size) ++ goto invalid_arg; ++ if(ops->len && ops->len != mtd->writesize) ++ goto invalid_arg; ++ if(ops->ooblen + ops->ooboffs > mtd->oobsize) ++ goto invalid_arg; ++ ++ rem = do_div(ofs, mtd->writesize); ++ if(rem) ++ goto invalid_arg; ++ ofs *= (mtd->writesize + mtd->oobsize); ++ ++ if(ops->datbuf) ++ ops->retlen = goldfish_nand_cmd(mtd, NAND_CMD_WRITE, ofs, ++ ops->len, ops->datbuf); ++ ofs += mtd->writesize + ops->ooboffs; ++ if(ops->oobbuf) ++ ops->oobretlen = goldfish_nand_cmd(mtd, NAND_CMD_WRITE, ofs, ++ ops->ooblen, ops->oobbuf); ++ return 0; ++ ++invalid_arg: ++ printk("goldfish_nand_write_oob: invalid write, start %llx, len %x, " ++ "ooblen %x, dev_size %llx, write_size %x\n", ++ ofs, ops->len, ops->ooblen, mtd->size, mtd->writesize); ++ return -EINVAL; ++} ++ ++static int goldfish_nand_read(struct mtd_info *mtd, loff_t from, size_t len, ++ size_t *retlen, u_char *buf) ++{ ++ uint32_t rem; ++ ++ if(from + len > mtd->size) ++ goto invalid_arg; ++ if(len != mtd->writesize) ++ goto invalid_arg; ++ ++ rem = do_div(from, mtd->writesize); ++ if(rem) ++ goto invalid_arg; ++ from *= (mtd->writesize + mtd->oobsize); ++ ++ *retlen = goldfish_nand_cmd(mtd, NAND_CMD_READ, from, len, buf); ++ return 0; ++ ++invalid_arg: ++ printk("goldfish_nand_read: invalid read, start %llx, len %x, dev_size %llx" ++ ", write_size %x\n", from, len, mtd->size, mtd->writesize); ++ return -EINVAL; ++} ++ ++static int goldfish_nand_write(struct mtd_info *mtd, loff_t to, size_t len, ++ size_t *retlen, const u_char *buf) ++{ ++ uint32_t rem; ++ ++ if(to + len > mtd->size) ++ goto invalid_arg; ++ if(len != mtd->writesize) ++ goto invalid_arg; ++ ++ rem = do_div(to, mtd->writesize); ++ if(rem) ++ goto invalid_arg; ++ to *= (mtd->writesize + mtd->oobsize); ++ ++ *retlen = goldfish_nand_cmd(mtd, NAND_CMD_WRITE, to, len, (void *)buf); ++ return 0; ++ ++invalid_arg: ++ printk("goldfish_nand_write: invalid write, start %llx, len %x, dev_size %llx" ++ ", write_size %x\n", to, len, mtd->size, mtd->writesize); ++ return -EINVAL; ++} ++ ++static int goldfish_nand_block_isbad(struct mtd_info *mtd, loff_t ofs) ++{ ++ uint32_t rem; ++ ++ if(ofs >= mtd->size) ++ goto invalid_arg; ++ ++ rem = do_div(ofs, mtd->erasesize); ++ if(rem) ++ goto invalid_arg; ++ ofs *= mtd->erasesize / mtd->writesize; ++ ofs *= (mtd->writesize + mtd->oobsize); ++ ++ return goldfish_nand_cmd(mtd, NAND_CMD_BLOCK_BAD_GET, ofs, 0, NULL); ++ ++invalid_arg: ++ printk("goldfish_nand_block_isbad: invalid arg, ofs %llx, dev_size %llx, " ++ "write_size %x\n", ofs, mtd->size, mtd->writesize); ++ return -EINVAL; ++} ++ ++static int goldfish_nand_block_markbad(struct mtd_info *mtd, loff_t ofs) ++{ ++ uint32_t rem; ++ ++ if(ofs >= mtd->size) ++ goto invalid_arg; ++ ++ rem = do_div(ofs, mtd->erasesize); ++ if(rem) ++ goto invalid_arg; ++ ofs *= mtd->erasesize / mtd->writesize; ++ ofs *= (mtd->writesize + mtd->oobsize); ++ ++ if(goldfish_nand_cmd(mtd, NAND_CMD_BLOCK_BAD_SET, ofs, 0, NULL) != 1) ++ return -EIO; ++ return 0; ++ ++invalid_arg: ++ printk("goldfish_nand_block_markbad: invalid arg, ofs %llx, dev_size %llx, " ++ "write_size %x\n", ofs, mtd->size, mtd->writesize); ++ return -EINVAL; ++} ++ ++static int goldfish_nand_init_device(struct goldfish_nand *nand, int id) ++{ ++ uint32_t name_len; ++ uint32_t result; ++ uint32_t flags; ++ unsigned long irq_flags; ++ unsigned char __iomem *base = nand->base; ++ struct mtd_info *mtd = &nand->mtd[id]; ++ char *name; ++ ++ spin_lock_irqsave(&nand->lock, irq_flags); ++ writel(id, base + NAND_DEV); ++ flags = readl(base + NAND_DEV_FLAGS); ++ name_len = readl(base + NAND_DEV_NAME_LEN); ++ mtd->writesize = readl(base + NAND_DEV_PAGE_SIZE); ++ mtd->size = readl(base + NAND_DEV_SIZE_LOW); ++ mtd->size |= (uint64_t)readl(base + NAND_DEV_SIZE_HIGH) << 32; ++ mtd->oobsize = readl(base + NAND_DEV_EXTRA_SIZE); ++ mtd->oobavail = mtd->oobsize; ++ mtd->erasesize = readl(base + NAND_DEV_ERASE_SIZE) / ++ (mtd->writesize + mtd->oobsize) * mtd->writesize; ++ do_div(mtd->size, mtd->writesize + mtd->oobsize); ++ mtd->size *= mtd->writesize; ++ printk("goldfish nand dev%d: size %llx, page %d, extra %d, erase %d\n", ++ id, mtd->size, mtd->writesize, mtd->oobsize, mtd->erasesize); ++ spin_unlock_irqrestore(&nand->lock, irq_flags); ++ ++ mtd->priv = nand; ++ ++ mtd->name = name = kmalloc(name_len + 1, GFP_KERNEL); ++ if(name == NULL) ++ return -ENOMEM; ++ ++ result = goldfish_nand_cmd(mtd, NAND_CMD_GET_DEV_NAME, 0, name_len, name); ++ if(result != name_len) { ++ kfree(mtd->name); ++ mtd->name = NULL; ++ printk("goldfish_nand_init_device failed to get dev name %d != %d\n", ++ result, name_len); ++ return -ENODEV; ++ } ++ ((char *) mtd->name)[name_len] = '\0'; ++ ++ /* Setup the MTD structure */ ++ mtd->type = MTD_NANDFLASH; ++ mtd->flags = MTD_CAP_NANDFLASH; ++ if(flags & NAND_DEV_FLAG_READ_ONLY) ++ mtd->flags &= ~MTD_WRITEABLE; ++ ++ mtd->owner = THIS_MODULE; ++ mtd->erase = goldfish_nand_erase; ++ mtd->read = goldfish_nand_read; ++ mtd->write = goldfish_nand_write; ++ mtd->read_oob = goldfish_nand_read_oob; ++ mtd->write_oob = goldfish_nand_write_oob; ++ mtd->block_isbad = goldfish_nand_block_isbad; ++ mtd->block_markbad = goldfish_nand_block_markbad; ++ ++ if (add_mtd_device(mtd)) { ++ kfree(mtd->name); ++ mtd->name = NULL; ++ return -EIO; ++ } ++ ++ return 0; ++} ++ ++static int goldfish_nand_probe(struct platform_device *pdev) ++{ ++ uint32_t num_dev; ++ int i; ++ int err; ++ uint32_t num_dev_working; ++ uint32_t version; ++ struct resource *r; ++ struct goldfish_nand *nand; ++ unsigned char __iomem *base; ++ ++ r = platform_get_resource(pdev, IORESOURCE_MEM, 0); ++ if(r == NULL) { ++ err = -ENODEV; ++ goto err_no_io_base; ++ } ++ ++ base = ioremap(r->start, PAGE_SIZE); ++ if(base == NULL) { ++ err = -ENOMEM; ++ goto err_ioremap; ++ } ++ version = readl(base + NAND_VERSION); ++ if(version != NAND_VERSION_CURRENT) { ++ printk("goldfish_nand_init: version mismatch, got %d, expected %d\n", ++ version, NAND_VERSION_CURRENT); ++ err = -ENODEV; ++ goto err_no_dev; ++ } ++ num_dev = readl(base + NAND_NUM_DEV); ++ if(num_dev == 0) { ++ err = -ENODEV; ++ goto err_no_dev; ++ } ++ ++ nand = kzalloc(sizeof(*nand) + sizeof(struct mtd_info) * num_dev, GFP_KERNEL); ++ if(nand == NULL) { ++ err = -ENOMEM; ++ goto err_nand_alloc_failed; ++ } ++ spin_lock_init(&nand->lock); ++ nand->base = base; ++ nand->mtd_count = num_dev; ++ platform_set_drvdata(pdev, nand); ++ ++ num_dev_working = 0; ++ for(i = 0; i < num_dev; i++) { ++ err = goldfish_nand_init_device(nand, i); ++ if(err == 0) ++ num_dev_working++; ++ } ++ if(num_dev_working == 0) { ++ err = -ENODEV; ++ goto err_no_working_dev; ++ } ++ return 0; ++ ++err_no_working_dev: ++ kfree(nand); ++err_nand_alloc_failed: ++err_no_dev: ++ iounmap(base); ++err_ioremap: ++err_no_io_base: ++ return err; ++} ++ ++static int goldfish_nand_remove(struct platform_device *pdev) ++{ ++ struct goldfish_nand *nand = platform_get_drvdata(pdev); ++ int i; ++ for(i = 0; i < nand->mtd_count; i++) { ++ if(nand->mtd[i].name) { ++ del_mtd_device(&nand->mtd[i]); ++ kfree(nand->mtd[i].name); ++ } ++ } ++ iounmap(nand->base); ++ kfree(nand); ++ return 0; ++} ++ ++static struct platform_driver goldfish_nand_driver = { ++ .probe = goldfish_nand_probe, ++ .remove = goldfish_nand_remove, ++ .driver = { ++ .name = "goldfish_nand" ++ } ++}; ++ ++static int __init goldfish_nand_init(void) ++{ ++ return platform_driver_register(&goldfish_nand_driver); ++} ++ ++static void __exit goldfish_nand_exit(void) ++{ ++ platform_driver_unregister(&goldfish_nand_driver); ++} ++ ++ ++module_init(goldfish_nand_init); ++module_exit(goldfish_nand_exit); ++ +diff --git a/drivers/mtd/devices/goldfish_nand_reg.h b/drivers/mtd/devices/goldfish_nand_reg.h +new file mode 100644 +index 0000000..7c17a44 +--- /dev/null ++++ b/drivers/mtd/devices/goldfish_nand_reg.h +@@ -0,0 +1,58 @@ ++/* drivers/mtd/devices/goldfish_nand_reg.h ++** ++** Copyright (C) 2007 Google, Inc. ++** ++** This software is licensed under the terms of the GNU General Public ++** License version 2, as published by the Free Software Foundation, and ++** may be copied, distributed, and modified under those terms. ++** ++** This program is distributed in the hope that it will be useful, ++** but WITHOUT ANY WARRANTY; without even the implied warranty of ++** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++** GNU General Public License for more details. ++** ++*/ ++ ++#ifndef GOLDFISH_NAND_REG_H ++#define GOLDFISH_NAND_REG_H ++ ++enum nand_cmd { ++ NAND_CMD_GET_DEV_NAME, // Write device name for NAND_DEV to NAND_DATA (vaddr) ++ NAND_CMD_READ, ++ NAND_CMD_WRITE, ++ NAND_CMD_ERASE, ++ NAND_CMD_BLOCK_BAD_GET, // NAND_RESULT is 1 if block is bad, 0 if it is not ++ NAND_CMD_BLOCK_BAD_SET ++}; ++ ++enum nand_dev_flags { ++ NAND_DEV_FLAG_READ_ONLY = 0x00000001 ++}; ++ ++#define NAND_VERSION_CURRENT (1) ++ ++enum nand_reg { ++ // Global ++ NAND_VERSION = 0x000, ++ NAND_NUM_DEV = 0x004, ++ NAND_DEV = 0x008, ++ ++ // Dev info ++ NAND_DEV_FLAGS = 0x010, ++ NAND_DEV_NAME_LEN = 0x014, ++ NAND_DEV_PAGE_SIZE = 0x018, ++ NAND_DEV_EXTRA_SIZE = 0x01c, ++ NAND_DEV_ERASE_SIZE = 0x020, ++ NAND_DEV_SIZE_LOW = 0x028, ++ NAND_DEV_SIZE_HIGH = 0x02c, ++ ++ // Command ++ NAND_RESULT = 0x040, ++ NAND_COMMAND = 0x044, ++ NAND_DATA = 0x048, ++ NAND_TRANSFER_SIZE = 0x04c, ++ NAND_ADDR_LOW = 0x050, ++ NAND_ADDR_HIGH = 0x054, ++}; ++ ++#endif +-- +1.6.2 + diff --git a/target/linux/goldfish/patches-2.6.30/0126--ARM-goldfish-POWER-New-power-supply-driver-for-g.patch b/target/linux/goldfish/patches-2.6.30/0126--ARM-goldfish-POWER-New-power-supply-driver-for-g.patch new file mode 100644 index 0000000000..4b5265ab37 --- /dev/null +++ b/target/linux/goldfish/patches-2.6.30/0126--ARM-goldfish-POWER-New-power-supply-driver-for-g.patch @@ -0,0 +1,308 @@ +From 7041346d379e563e9ee66f9dd31277e4fb6b1b1f Mon Sep 17 00:00:00 2001 +From: Mike Lockwood <lockwood@android.com> +Date: Wed, 6 Feb 2008 11:37:10 -0500 +Subject: [PATCH 126/134] [ARM] goldfish: POWER: New power supply driver for goldfish. + +Signed-off-by: Mike A. Chan <mikechan@google.com> +--- + drivers/power/Kconfig | 5 + + drivers/power/Makefile | 3 +- + drivers/power/goldfish_battery.c | 254 ++++++++++++++++++++++++++++++++++++++ + 3 files changed, 261 insertions(+), 1 deletions(-) + create mode 100644 drivers/power/goldfish_battery.c + +diff --git a/drivers/power/Kconfig b/drivers/power/Kconfig +index 33da112..593c616 100644 +--- a/drivers/power/Kconfig ++++ b/drivers/power/Kconfig +@@ -88,4 +88,9 @@ config CHARGER_PCF50633 + help + Say Y to include support for NXP PCF50633 Main Battery Charger. + ++config BATTERY_GOLDFISH ++ tristate "Goldfish battery driver" ++ help ++ Say Y to enable support for the battery and AC power in the Goldfish emulator. ++ + endif # POWER_SUPPLY +diff --git a/drivers/power/Makefile b/drivers/power/Makefile +index 2fcf41d..5be0fbb 100644 +--- a/drivers/power/Makefile ++++ b/drivers/power/Makefile +@@ -19,10 +19,11 @@ obj-$(CONFIG_APM_POWER) += apm_power.o + obj-$(CONFIG_WM8350_POWER) += wm8350_power.o + + obj-$(CONFIG_BATTERY_DS2760) += ds2760_battery.o ++obj-$(CONFIG_BATTERY_GOLDFISH) += goldfish_battery.o + obj-$(CONFIG_BATTERY_PMU) += pmu_battery.o + obj-$(CONFIG_BATTERY_OLPC) += olpc_battery.o + obj-$(CONFIG_BATTERY_TOSA) += tosa_battery.o + obj-$(CONFIG_BATTERY_WM97XX) += wm97xx_battery.o + obj-$(CONFIG_BATTERY_BQ27x00) += bq27x00_battery.o + obj-$(CONFIG_BATTERY_DA9030) += da9030_battery.o +-obj-$(CONFIG_CHARGER_PCF50633) += pcf50633-charger.o +\ No newline at end of file ++obj-$(CONFIG_CHARGER_PCF50633) += pcf50633-charger.o +diff --git a/drivers/power/goldfish_battery.c b/drivers/power/goldfish_battery.c +new file mode 100644 +index 0000000..868dc83 +--- /dev/null ++++ b/drivers/power/goldfish_battery.c +@@ -0,0 +1,254 @@ ++/* drivers/power/goldfish_battery.c ++ * ++ * Power supply driver for the goldfish emulator ++ * ++ * Copyright (C) 2008 Google, Inc. ++ * Author: Mike Lockwood <lockwood@android.com> ++ * ++ * This software is licensed under the terms of the GNU General Public ++ * License version 2, as published by the Free Software Foundation, and ++ * may be copied, distributed, and modified under those terms. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ * ++ */ ++ ++#include <linux/module.h> ++#include <linux/err.h> ++#include <linux/platform_device.h> ++#include <linux/power_supply.h> ++#include <linux/types.h> ++#include <linux/pci.h> ++#include <linux/interrupt.h> ++#include <asm/io.h> ++ ++ ++struct goldfish_battery_data { ++ uint32_t reg_base; ++ int irq; ++ spinlock_t lock; ++ ++ struct power_supply battery; ++ struct power_supply ac; ++}; ++ ++#define GOLDFISH_BATTERY_READ(data, addr) (readl(data->reg_base + addr)) ++#define GOLDFISH_BATTERY_WRITE(data, addr, x) (writel(x, data->reg_base + addr)) ++ ++ ++/* temporary variable used between goldfish_battery_probe() and goldfish_battery_open() */ ++static struct goldfish_battery_data *battery_data; ++ ++enum { ++ /* status register */ ++ BATTERY_INT_STATUS = 0x00, ++ /* set this to enable IRQ */ ++ BATTERY_INT_ENABLE = 0x04, ++ ++ BATTERY_AC_ONLINE = 0x08, ++ BATTERY_STATUS = 0x0C, ++ BATTERY_HEALTH = 0x10, ++ BATTERY_PRESENT = 0x14, ++ BATTERY_CAPACITY = 0x18, ++ ++ BATTERY_STATUS_CHANGED = 1U << 0, ++ AC_STATUS_CHANGED = 1U << 1, ++ BATTERY_INT_MASK = BATTERY_STATUS_CHANGED | AC_STATUS_CHANGED, ++}; ++ ++ ++static int goldfish_ac_get_property(struct power_supply *psy, ++ enum power_supply_property psp, ++ union power_supply_propval *val) ++{ ++ struct goldfish_battery_data *data = container_of(psy, ++ struct goldfish_battery_data, ac); ++ int ret = 0; ++ ++ switch (psp) { ++ case POWER_SUPPLY_PROP_ONLINE: ++ val->intval = GOLDFISH_BATTERY_READ(data, BATTERY_AC_ONLINE); ++ break; ++ default: ++ ret = -EINVAL; ++ break; ++ } ++ return ret; ++} ++ ++static int goldfish_battery_get_property(struct power_supply *psy, ++ enum power_supply_property psp, ++ union power_supply_propval *val) ++{ ++ struct goldfish_battery_data *data = container_of(psy, ++ struct goldfish_battery_data, battery); ++ int ret = 0; ++ ++ switch (psp) { ++ case POWER_SUPPLY_PROP_STATUS: ++ val->intval = GOLDFISH_BATTERY_READ(data, BATTERY_STATUS); ++ break; ++ case POWER_SUPPLY_PROP_HEALTH: ++ val->intval = GOLDFISH_BATTERY_READ(data, BATTERY_HEALTH); ++ break; ++ case POWER_SUPPLY_PROP_PRESENT: ++ val->intval = GOLDFISH_BATTERY_READ(data, BATTERY_PRESENT); ++ break; ++ case POWER_SUPPLY_PROP_TECHNOLOGY: ++ val->intval = POWER_SUPPLY_TECHNOLOGY_LION; ++ break; ++ case POWER_SUPPLY_PROP_CAPACITY: ++ val->intval = GOLDFISH_BATTERY_READ(data, BATTERY_CAPACITY); ++ break; ++ default: ++ ret = -EINVAL; ++ break; ++ } ++ ++ return ret; ++} ++ ++static enum power_supply_property goldfish_battery_props[] = { ++ POWER_SUPPLY_PROP_STATUS, ++ POWER_SUPPLY_PROP_HEALTH, ++ POWER_SUPPLY_PROP_PRESENT, ++ POWER_SUPPLY_PROP_TECHNOLOGY, ++ POWER_SUPPLY_PROP_CAPACITY, ++}; ++ ++static enum power_supply_property goldfish_ac_props[] = { ++ POWER_SUPPLY_PROP_ONLINE, ++}; ++ ++static irqreturn_t goldfish_battery_interrupt(int irq, void *dev_id) ++{ ++ unsigned long irq_flags; ++ struct goldfish_battery_data *data = dev_id; ++ uint32_t status; ++ ++ spin_lock_irqsave(&data->lock, irq_flags); ++ ++ /* read status flags, which will clear the interrupt */ ++ status = GOLDFISH_BATTERY_READ(data, BATTERY_INT_STATUS); ++ status &= BATTERY_INT_MASK; ++ ++ if (status & BATTERY_STATUS_CHANGED) ++ power_supply_changed(&data->battery); ++ if (status & AC_STATUS_CHANGED) ++ power_supply_changed(&data->ac); ++ ++ spin_unlock_irqrestore(&data->lock, irq_flags); ++ return status ? IRQ_HANDLED : IRQ_NONE; ++} ++ ++ ++static int goldfish_battery_probe(struct platform_device *pdev) ++{ ++ int ret; ++ struct resource *r; ++ struct goldfish_battery_data *data; ++ ++ data = kzalloc(sizeof(*data), GFP_KERNEL); ++ if (data == NULL) { ++ ret = -ENOMEM; ++ goto err_data_alloc_failed; ++ } ++ spin_lock_init(&data->lock); ++ ++ data->battery.properties = goldfish_battery_props; ++ data->battery.num_properties = ARRAY_SIZE(goldfish_battery_props); ++ data->battery.get_property = goldfish_battery_get_property; ++ data->battery.name = "battery"; ++ data->battery.type = POWER_SUPPLY_TYPE_BATTERY; ++ ++ data->ac.properties = goldfish_ac_props; ++ data->ac.num_properties = ARRAY_SIZE(goldfish_ac_props); ++ data->ac.get_property = goldfish_ac_get_property; ++ data->ac.name = "ac"; ++ data->ac.type = POWER_SUPPLY_TYPE_MAINS; ++ ++ r = platform_get_resource(pdev, IORESOURCE_MEM, 0); ++ if (r == NULL) { ++ printk(KERN_ERR "%s: platform_get_resource failed\n", pdev->name); ++ ret = -ENODEV; ++ goto err_no_io_base; ++ } ++ data->reg_base = IO_ADDRESS(r->start - IO_START); ++ ++ data->irq = platform_get_irq(pdev, 0); ++ if (data->irq < 0) { ++ printk(KERN_ERR "%s: platform_get_irq failed\n", pdev->name); ++ ret = -ENODEV; ++ goto err_no_irq; ++ } ++ ++ ret = request_irq(data->irq, goldfish_battery_interrupt, IRQF_SHARED, pdev->name, data); ++ if (ret) ++ goto err_request_irq_failed; ++ ++ ret = power_supply_register(&pdev->dev, &data->ac); ++ if (ret) ++ goto err_ac_failed; ++ ++ ret = power_supply_register(&pdev->dev, &data->battery); ++ if (ret) ++ goto err_battery_failed; ++ ++ platform_set_drvdata(pdev, data); ++ battery_data = data; ++ ++ GOLDFISH_BATTERY_WRITE(data, BATTERY_INT_ENABLE, BATTERY_INT_MASK); ++ return 0; ++ ++err_battery_failed: ++ power_supply_unregister(&data->ac); ++err_ac_failed: ++ free_irq(data->irq, data); ++err_request_irq_failed: ++err_no_irq: ++err_no_io_base: ++ kfree(data); ++err_data_alloc_failed: ++ return ret; ++} ++ ++static int goldfish_battery_remove(struct platform_device *pdev) ++{ ++ struct goldfish_battery_data *data = platform_get_drvdata(pdev); ++ ++ power_supply_unregister(&data->battery); ++ power_supply_unregister(&data->ac); ++ ++ free_irq(data->irq, data); ++ kfree(data); ++ battery_data = NULL; ++ return 0; ++} ++ ++static struct platform_driver goldfish_battery_device = { ++ .probe = goldfish_battery_probe, ++ .remove = goldfish_battery_remove, ++ .driver = { ++ .name = "goldfish-battery" ++ } ++}; ++ ++static int __init goldfish_battery_init(void) ++{ ++ return platform_driver_register(&goldfish_battery_device); ++} ++ ++static void __exit goldfish_battery_exit(void) ++{ ++ platform_driver_unregister(&goldfish_battery_device); ++} ++ ++module_init(goldfish_battery_init); ++module_exit(goldfish_battery_exit); ++ ++MODULE_AUTHOR("Mike Lockwood lockwood@android.com"); ++MODULE_LICENSE("GPL"); ++MODULE_DESCRIPTION("Battery driver for the Goldfish emulator"); +-- +1.6.2 + diff --git a/target/linux/goldfish/patches-2.6.30/0127--ARM-goldfish-RTC-Add-RTC-driver-for-goldfish.patch b/target/linux/goldfish/patches-2.6.30/0127--ARM-goldfish-RTC-Add-RTC-driver-for-goldfish.patch new file mode 100644 index 0000000000..bb0c29da27 --- /dev/null +++ b/target/linux/goldfish/patches-2.6.30/0127--ARM-goldfish-RTC-Add-RTC-driver-for-goldfish.patch @@ -0,0 +1,186 @@ +From fce981438497199217ed19f14c4d0f1a1aa309f3 Mon Sep 17 00:00:00 2001 +From: =?utf-8?q?Arve=20Hj=C3=B8nnev=C3=A5g?= <arve@google.com> +Date: Fri, 29 Jun 2007 21:46:31 -0700 +Subject: [PATCH 127/134] [ARM] goldfish: RTC: Add RTC driver for goldfish. +MIME-Version: 1.0 +Content-Type: text/plain; charset=utf-8 +Content-Transfer-Encoding: 8bit + +Gets the current time from the host. +Alarms are not supported yet. + +Signed-off-by: Mike A. Chan <mikechan@google.com> +Signed-off-by: Arve HjønnevÃ¥g <arve@android.com> +--- + drivers/rtc/Kconfig | 6 ++ + drivers/rtc/Makefile | 1 + + drivers/rtc/rtc-goldfish.c | 138 ++++++++++++++++++++++++++++++++++++++++++++ + 3 files changed, 145 insertions(+), 0 deletions(-) + create mode 100644 drivers/rtc/rtc-goldfish.c + +--- a/drivers/rtc/Kconfig ++++ b/drivers/rtc/Kconfig +@@ -691,6 +691,12 @@ config RTC_DRV_BFIN + This driver can also be built as a module. If so, the module + will be called rtc-bfin. + ++config RTC_DRV_GOLDFISH ++ tristate "GOLDFISH" ++ depends on ARCH_GOLDFISH ++ help ++ RTC driver for Goldfish Virtual Platform ++ + config RTC_DRV_RS5C313 + tristate "Ricoh RS5C313" + depends on SH_LANDISK +--- a/drivers/rtc/Makefile ++++ b/drivers/rtc/Makefile +@@ -39,6 +39,7 @@ obj-$(CONFIG_RTC_DRV_DS3234) += rtc-ds32 + obj-$(CONFIG_RTC_DRV_EFI) += rtc-efi.o + obj-$(CONFIG_RTC_DRV_EP93XX) += rtc-ep93xx.o + obj-$(CONFIG_RTC_DRV_FM3130) += rtc-fm3130.o ++obj-$(CONFIG_RTC_DRV_GOLDFISH) += rtc-goldfish.o + obj-$(CONFIG_RTC_DRV_ISL1208) += rtc-isl1208.o + obj-$(CONFIG_RTC_DRV_M41T80) += rtc-m41t80.o + obj-$(CONFIG_RTC_DRV_M41T94) += rtc-m41t94.o +--- /dev/null ++++ b/drivers/rtc/rtc-goldfish.c +@@ -0,0 +1,138 @@ ++/* drivers/rtc/rtc-goldfish.c ++** ++** Copyright (C) 2007 Google, Inc. ++** ++** This software is licensed under the terms of the GNU General Public ++** License version 2, as published by the Free Software Foundation, and ++** may be copied, distributed, and modified under those terms. ++** ++** This program is distributed in the hope that it will be useful, ++** but WITHOUT ANY WARRANTY; without even the implied warranty of ++** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++** GNU General Public License for more details. ++** ++*/ ++ ++#include <linux/interrupt.h> ++#include <linux/irq.h> ++#include <linux/platform_device.h> ++#include <linux/rtc.h> ++ ++#include <mach/timer.h> ++#include <mach/hardware.h> ++#include <asm/io.h> ++ ++struct goldfish_rtc { ++ uint32_t base; ++ uint32_t irq; ++ struct rtc_device *rtc; ++}; ++ ++static irqreturn_t ++goldfish_rtc_interrupt(int irq, void *dev_id) ++{ ++ struct goldfish_rtc *qrtc = dev_id; ++ unsigned long events = 0; ++ ++ writel(1, qrtc->base + TIMER_CLEAR_INTERRUPT); ++ events = RTC_IRQF | RTC_AF; ++ ++ rtc_update_irq(qrtc->rtc, 1, events); ++ ++ return IRQ_HANDLED; ++} ++ ++static int goldfish_rtc_read_time(struct device *dev, struct rtc_time *tm) ++{ ++ int64_t time; ++ struct goldfish_rtc *qrtc = platform_get_drvdata(to_platform_device(dev)); ++ ++ time = readl(qrtc->base + TIMER_TIME_LOW); ++ time |= (int64_t)readl(qrtc->base + TIMER_TIME_HIGH) << 32; ++ do_div(time, NSEC_PER_SEC); ++ ++ rtc_time_to_tm(time, tm); ++ return 0; ++} ++ ++static struct rtc_class_ops goldfish_rtc_ops = { ++// .ioctl = goldfish_rtc_ioctl, ++ .read_time = goldfish_rtc_read_time, ++// .set_time = goldfish_rtc_set_time, ++// .read_alarm = goldfish_rtc_read_alarm, ++// .set_alarm = goldfish_rtc_set_alarm, ++}; ++ ++ ++static int goldfish_rtc_probe(struct platform_device *pdev) ++{ ++ int ret; ++ struct resource *r; ++ struct goldfish_rtc *qrtc; ++ ++ qrtc = kzalloc(sizeof(*qrtc), GFP_KERNEL); ++ if(qrtc == NULL) { ++ ret = -ENOMEM; ++ goto err_qrtc_alloc_failed; ++ } ++ platform_set_drvdata(pdev, qrtc); ++ ++ r = platform_get_resource(pdev, IORESOURCE_MEM, 0); ++ if(r == NULL) { ++ ret = -ENODEV; ++ goto err_no_io_base; ++ } ++ qrtc->base = IO_ADDRESS(r->start - IO_START); ++ qrtc->irq = platform_get_irq(pdev, 0); ++ if(qrtc->irq < 0) { ++ ret = -ENODEV; ++ goto err_no_irq; ++ } ++ qrtc->rtc = rtc_device_register(pdev->name, &pdev->dev, ++ &goldfish_rtc_ops, THIS_MODULE); ++ if (IS_ERR(qrtc->rtc)) { ++ ret = PTR_ERR(qrtc->rtc); ++ goto err_rtc_device_register_failed; ++ } ++ ++ ret = request_irq(qrtc->irq, goldfish_rtc_interrupt, 0, pdev->name, qrtc); ++ if(ret) ++ goto request_irq; ++ ++ return 0; ++ ++ free_irq(qrtc->irq, qrtc); ++request_irq: ++ rtc_device_unregister(qrtc->rtc); ++err_rtc_device_register_failed: ++err_no_irq: ++err_no_io_base: ++ kfree(qrtc); ++err_qrtc_alloc_failed: ++ return ret; ++} ++ ++static int goldfish_rtc_remove(struct platform_device *pdev) ++{ ++ struct goldfish_rtc *qrtc = platform_get_drvdata(pdev); ++ free_irq(qrtc->irq, qrtc); ++ rtc_device_unregister(qrtc->rtc); ++ kfree(qrtc); ++ return 0; ++} ++ ++static struct platform_driver goldfish_timer = { ++ .probe = goldfish_rtc_probe, ++ .remove = goldfish_rtc_remove, ++ .driver = { ++ .name = "goldfish_rtc" ++ } ++}; ++ ++static int __init goldfish_rtc_init(void) ++{ ++ return platform_driver_register(&goldfish_timer); ++} ++ ++module_init(goldfish_rtc_init); ++ diff --git a/target/linux/goldfish/patches-2.6.30/0128--ARM-goldfish-fb-Add-fb-driver-for-goldfish.patch b/target/linux/goldfish/patches-2.6.30/0128--ARM-goldfish-fb-Add-fb-driver-for-goldfish.patch new file mode 100644 index 0000000000..48e69daae0 --- /dev/null +++ b/target/linux/goldfish/patches-2.6.30/0128--ARM-goldfish-fb-Add-fb-driver-for-goldfish.patch @@ -0,0 +1,384 @@ +From f8101c780fdc050eda9f93c94f8841de9f384b4f Mon Sep 17 00:00:00 2001 +From: =?utf-8?q?Arve=20Hj=C3=B8nnev=C3=A5g?= <arve@google.com> +Date: Fri, 29 Jun 2007 22:14:27 -0700 +Subject: [PATCH 128/134] [ARM] goldfish: fb: Add fb driver for goldfish. +MIME-Version: 1.0 +Content-Type: text/plain; charset=utf-8 +Content-Transfer-Encoding: 8bit + +Supports panning for double buffering. + +Signed-off-by: Mike A. Chan <mikechan@google.com> +Signed-off-by: Arve HjønnevÃ¥g <arve@android.com> +--- + drivers/video/Kconfig | 9 ++ + drivers/video/Makefile | 1 + + drivers/video/goldfishfb.c | 334 ++++++++++++++++++++++++++++++++++++++++++++ + 3 files changed, 344 insertions(+), 0 deletions(-) + create mode 100644 drivers/video/goldfishfb.c + +--- a/drivers/video/Kconfig ++++ b/drivers/video/Kconfig +@@ -2005,6 +2005,15 @@ config FB_XILINX + framebuffer. ML300 carries a 640*480 LCD display on the board, + ML403 uses a standard DB15 VGA connector. + ++config FB_GOLDFISH ++ tristate "Goldfish Framebuffer" ++ depends on FB ++ select FB_CFB_FILLRECT ++ select FB_CFB_COPYAREA ++ select FB_CFB_IMAGEBLIT ++ ---help--- ++ Framebuffer driver for Goldfish Virtual Platform ++ + config FB_COBALT + tristate "Cobalt server LCD frame buffer support" + depends on FB && MIPS_COBALT +--- a/drivers/video/Makefile ++++ b/drivers/video/Makefile +@@ -92,6 +92,7 @@ obj-$(CONFIG_FB_ATMEL) += atmel_lcdfb + obj-$(CONFIG_FB_PVR2) += pvr2fb.o + obj-$(CONFIG_FB_VOODOO1) += sstfb.o + obj-$(CONFIG_FB_ARMCLCD) += amba-clcd.o ++obj-$(CONFIG_FB_GOLDFISH) += goldfishfb.o + obj-$(CONFIG_FB_68328) += 68328fb.o + obj-$(CONFIG_FB_GBE) += gbefb.o + obj-$(CONFIG_FB_CIRRUS) += cirrusfb.o +--- /dev/null ++++ b/drivers/video/goldfishfb.c +@@ -0,0 +1,334 @@ ++/* drivers/video/goldfishfb.c ++** ++** Copyright (C) 2007 Google, Inc. ++** ++** This software is licensed under the terms of the GNU General Public ++** License version 2, as published by the Free Software Foundation, and ++** may be copied, distributed, and modified under those terms. ++** ++** This program is distributed in the hope that it will be useful, ++** but WITHOUT ANY WARRANTY; without even the implied warranty of ++** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++** GNU General Public License for more details. ++** ++*/ ++ ++#include <linux/module.h> ++#include <linux/kernel.h> ++#include <linux/dma-mapping.h> ++#include <linux/errno.h> ++#include <linux/string.h> ++#include <linux/slab.h> ++#include <linux/delay.h> ++#include <linux/mm.h> ++#include <linux/fb.h> ++#include <linux/init.h> ++#include <linux/interrupt.h> ++#include <linux/ioport.h> ++#include <linux/platform_device.h> ++#ifdef CONFIG_ANDROID_POWER ++#include <linux/android_power.h> ++#endif ++ ++#include <mach/hardware.h> ++ ++enum { ++ FB_GET_WIDTH = 0x00, ++ FB_GET_HEIGHT = 0x04, ++ FB_INT_STATUS = 0x08, ++ FB_INT_ENABLE = 0x0c, ++ FB_SET_BASE = 0x10, ++ FB_SET_ROTATION = 0x14, ++ FB_SET_BLANK = 0x18, ++ FB_GET_PHYS_WIDTH = 0x1c, ++ FB_GET_PHYS_HEIGHT = 0x20, ++ ++ FB_INT_VSYNC = 1U << 0, ++ FB_INT_BASE_UPDATE_DONE = 1U << 1 ++}; ++ ++struct goldfish_fb { ++ uint32_t reg_base; ++ int irq; ++ spinlock_t lock; ++ wait_queue_head_t wait; ++ int base_update_count; ++ int rotation; ++ struct fb_info fb; ++ u32 cmap[16]; ++#ifdef CONFIG_ANDROID_POWER ++ android_early_suspend_t early_suspend; ++#endif ++}; ++ ++static irqreturn_t ++goldfish_fb_interrupt(int irq, void *dev_id) ++{ ++ unsigned long irq_flags; ++ struct goldfish_fb *fb = dev_id; ++ uint32_t status; ++ ++ spin_lock_irqsave(&fb->lock, irq_flags); ++ status = readl(fb->reg_base + FB_INT_STATUS); ++ if(status & FB_INT_BASE_UPDATE_DONE) { ++ fb->base_update_count++; ++ wake_up(&fb->wait); ++ } ++ spin_unlock_irqrestore(&fb->lock, irq_flags); ++ return status ? IRQ_HANDLED : IRQ_NONE; ++} ++ ++static inline u32 convert_bitfield(int val, struct fb_bitfield *bf) ++{ ++ unsigned int mask = (1 << bf->length) - 1; ++ ++ return (val >> (16 - bf->length) & mask) << bf->offset; ++} ++ ++static int ++goldfish_fb_setcolreg(unsigned int regno, unsigned int red, unsigned int green, ++ unsigned int blue, unsigned int transp, struct fb_info *info) ++{ ++ struct goldfish_fb *fb = container_of(info, struct goldfish_fb, fb); ++ ++ if (regno < 16) { ++ fb->cmap[regno] = convert_bitfield(transp, &fb->fb.var.transp) | ++ convert_bitfield(blue, &fb->fb.var.blue) | ++ convert_bitfield(green, &fb->fb.var.green) | ++ convert_bitfield(red, &fb->fb.var.red); ++ return 0; ++ } ++ else { ++ return 1; ++ } ++} ++ ++static int goldfish_fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) ++{ ++ if((var->rotate & 1) != (info->var.rotate & 1)) { ++ if((var->xres != info->var.yres) || ++ (var->yres != info->var.xres) || ++ (var->xres_virtual != info->var.yres) || ++ (var->yres_virtual > info->var.xres * 2) || ++ (var->yres_virtual < info->var.xres )) { ++ return -EINVAL; ++ } ++ } ++ else { ++ if((var->xres != info->var.xres) || ++ (var->yres != info->var.yres) || ++ (var->xres_virtual != info->var.xres) || ++ (var->yres_virtual > info->var.yres * 2) || ++ (var->yres_virtual < info->var.yres )) { ++ return -EINVAL; ++ } ++ } ++ if((var->xoffset != info->var.xoffset) || ++ (var->bits_per_pixel != info->var.bits_per_pixel) || ++ (var->grayscale != info->var.grayscale)) { ++ return -EINVAL; ++ } ++ return 0; ++} ++ ++static int goldfish_fb_set_par(struct fb_info *info) ++{ ++ struct goldfish_fb *fb = container_of(info, struct goldfish_fb, fb); ++ if(fb->rotation != fb->fb.var.rotate) { ++ info->fix.line_length = info->var.xres * 2; ++ fb->rotation = fb->fb.var.rotate; ++ writel(fb->rotation, fb->reg_base + FB_SET_ROTATION); ++ } ++ return 0; ++} ++ ++ ++static int goldfish_fb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info) ++{ ++ unsigned long irq_flags; ++ int base_update_count; ++ struct goldfish_fb *fb = container_of(info, struct goldfish_fb, fb); ++ ++ spin_lock_irqsave(&fb->lock, irq_flags); ++ base_update_count = fb->base_update_count; ++ writel(fb->fb.fix.smem_start + fb->fb.var.xres * 2 * var->yoffset, fb->reg_base + FB_SET_BASE); ++ spin_unlock_irqrestore(&fb->lock, irq_flags); ++ wait_event_timeout(fb->wait, fb->base_update_count != base_update_count, HZ / 15); ++ if(fb->base_update_count == base_update_count) ++ printk("goldfish_fb_pan_display: timeout wating for base update\n"); ++ return 0; ++} ++ ++#ifdef CONFIG_ANDROID_POWER ++static void goldfish_fb_early_suspend(android_early_suspend_t *h) ++{ ++ struct goldfish_fb *fb = container_of(h, struct goldfish_fb, early_suspend); ++ writel(1, fb->reg_base + FB_SET_BLANK); ++} ++ ++static void goldfish_fb_late_resume(android_early_suspend_t *h) ++{ ++ struct goldfish_fb *fb = container_of(h, struct goldfish_fb, early_suspend); ++ writel(0, fb->reg_base + FB_SET_BLANK); ++} ++#endif ++ ++static struct fb_ops goldfish_fb_ops = { ++ .owner = THIS_MODULE, ++ .fb_check_var = goldfish_fb_check_var, ++ .fb_set_par = goldfish_fb_set_par, ++ .fb_setcolreg = goldfish_fb_setcolreg, ++ .fb_pan_display = goldfish_fb_pan_display, ++ .fb_fillrect = cfb_fillrect, ++ .fb_copyarea = cfb_copyarea, ++ .fb_imageblit = cfb_imageblit, ++}; ++ ++ ++static int goldfish_fb_probe(struct platform_device *pdev) ++{ ++ int ret; ++ struct resource *r; ++ struct goldfish_fb *fb; ++ size_t framesize; ++ uint32_t width, height; ++ dma_addr_t fbpaddr; ++ ++ fb = kzalloc(sizeof(*fb), GFP_KERNEL); ++ if(fb == NULL) { ++ ret = -ENOMEM; ++ goto err_fb_alloc_failed; ++ } ++ spin_lock_init(&fb->lock); ++ init_waitqueue_head(&fb->wait); ++ platform_set_drvdata(pdev, fb); ++ ++ r = platform_get_resource(pdev, IORESOURCE_MEM, 0); ++ if(r == NULL) { ++ ret = -ENODEV; ++ goto err_no_io_base; ++ } ++ fb->reg_base = IO_ADDRESS(r->start - IO_START); ++ ++ fb->irq = platform_get_irq(pdev, 0); ++ if(fb->irq < 0) { ++ ret = -ENODEV; ++ goto err_no_irq; ++ } ++ ++ width = readl(fb->reg_base + FB_GET_WIDTH); ++ height = readl(fb->reg_base + FB_GET_HEIGHT); ++ ++ fb->fb.fbops = &goldfish_fb_ops; ++ fb->fb.flags = FBINFO_FLAG_DEFAULT; ++ fb->fb.pseudo_palette = fb->cmap; ++ //strncpy(fb->fb.fix.id, clcd_name, sizeof(fb->fb.fix.id)); ++ fb->fb.fix.type = FB_TYPE_PACKED_PIXELS; ++ fb->fb.fix.visual = FB_VISUAL_TRUECOLOR; ++ fb->fb.fix.line_length = width * 2; ++ fb->fb.fix.accel = FB_ACCEL_NONE; ++ fb->fb.fix.ypanstep = 1; ++ ++ fb->fb.var.xres = width; ++ fb->fb.var.yres = height; ++ fb->fb.var.xres_virtual = width; ++ fb->fb.var.yres_virtual = height * 2; ++ fb->fb.var.bits_per_pixel = 16; ++ fb->fb.var.activate = FB_ACTIVATE_NOW; ++ fb->fb.var.height = readl(fb->reg_base + FB_GET_PHYS_HEIGHT); ++ fb->fb.var.width = readl(fb->reg_base + FB_GET_PHYS_WIDTH); ++ ++ fb->fb.var.red.offset = 11; ++ fb->fb.var.red.length = 5; ++ fb->fb.var.green.offset = 5; ++ fb->fb.var.green.length = 6; ++ fb->fb.var.blue.offset = 0; ++ fb->fb.var.blue.length = 5; ++ ++ framesize = width * height * 2 * 2; ++ fb->fb.screen_base = dma_alloc_writecombine(&pdev->dev, framesize, ++ &fbpaddr, GFP_KERNEL); ++ printk("allocating frame buffer %d * %d, got %p\n", width, height, fb->fb.screen_base); ++ if(fb->fb.screen_base == 0) { ++ ret = -ENOMEM; ++ goto err_alloc_screen_base_failed; ++ } ++ fb->fb.fix.smem_start = fbpaddr; ++ fb->fb.fix.smem_len = framesize; ++ ++ ret = fb_set_var(&fb->fb, &fb->fb.var); ++ if(ret) ++ goto err_fb_set_var_failed; ++ ++ ret = request_irq(fb->irq, goldfish_fb_interrupt, IRQF_SHARED, pdev->name, fb); ++ if(ret) ++ goto err_request_irq_failed; ++ ++ writel(FB_INT_BASE_UPDATE_DONE, fb->reg_base + FB_INT_ENABLE); ++ goldfish_fb_pan_display(&fb->fb.var, &fb->fb); // updates base ++ ++ ret = register_framebuffer(&fb->fb); ++ if(ret) ++ goto err_register_framebuffer_failed; ++ ++#ifdef CONFIG_ANDROID_POWER ++ fb->early_suspend.suspend = goldfish_fb_early_suspend; ++ fb->early_suspend.resume = goldfish_fb_late_resume; ++ android_register_early_suspend(&fb->early_suspend); ++#endif ++ ++ return 0; ++ ++ ++err_register_framebuffer_failed: ++ free_irq(fb->irq, fb); ++err_request_irq_failed: ++err_fb_set_var_failed: ++ dma_free_writecombine(&pdev->dev, framesize, fb->fb.screen_base, fb->fb.fix.smem_start); ++err_alloc_screen_base_failed: ++err_no_irq: ++err_no_io_base: ++ kfree(fb); ++err_fb_alloc_failed: ++ return ret; ++} ++ ++static int goldfish_fb_remove(struct platform_device *pdev) ++{ ++ size_t framesize; ++ struct goldfish_fb *fb = platform_get_drvdata(pdev); ++ ++ framesize = fb->fb.var.xres_virtual * fb->fb.var.yres_virtual * 2; ++ ++#ifdef CONFIG_ANDROID_POWER ++ android_unregister_early_suspend(&fb->early_suspend); ++#endif ++ unregister_framebuffer(&fb->fb); ++ free_irq(fb->irq, fb); ++ dma_free_writecombine(&pdev->dev, framesize, fb->fb.screen_base, fb->fb.fix.smem_start); ++ kfree(fb); ++ return 0; ++} ++ ++ ++static struct platform_driver goldfish_fb_driver = { ++ .probe = goldfish_fb_probe, ++ .remove = goldfish_fb_remove, ++ .driver = { ++ .name = "goldfish_fb" ++ } ++}; ++ ++static int __init goldfish_fb_init(void) ++{ ++ return platform_driver_register(&goldfish_fb_driver); ++} ++ ++static void __exit goldfish_fb_exit(void) ++{ ++ platform_driver_unregister(&goldfish_fb_driver); ++} ++ ++module_init(goldfish_fb_init); ++module_exit(goldfish_fb_exit); ++ diff --git a/target/linux/goldfish/patches-2.6.30/0129--ARM-goldfish-qemutrace-Kernel-instrumentation-fo.patch b/target/linux/goldfish/patches-2.6.30/0129--ARM-goldfish-qemutrace-Kernel-instrumentation-fo.patch new file mode 100644 index 0000000000..c8463ff240 --- /dev/null +++ b/target/linux/goldfish/patches-2.6.30/0129--ARM-goldfish-qemutrace-Kernel-instrumentation-fo.patch @@ -0,0 +1,854 @@ +From fcd69dd4537320a25a294c82362cc7abe4fe773c Mon Sep 17 00:00:00 2001 +From: Ye Wen <ywen@google.com> +Date: Fri, 14 Jul 2006 14:51:45 +0700 +Subject: [PATCH 129/134] [ARM] goldfish: qemutrace: Kernel instrumentation for tracing the events. + +Like fork, context switch, execve and exit. +This code is to complement Jack's tracing facility. + +To turn tracing on: +echo 1 > /sysfs/qemu_trace/state +To turn tracing off: echo 0 > /sysfs/qemu_trace/state +I also added java methods to Debug.java to turn tracing on and off. +The kernel driver also supports adding dynamic symbols to the trace. +To add a symbol 'foo' with hex address 'abcd1234' to the trace: +echo 'abcd1234 foo' > /sysfs/qemu_trace/symbol + +Signed-off-by: Mike Chan <mike@android.com> + +[ARM] goldfish: qemutrace: Improved support for tracing thread and process names. + +Added a new pseudo file /sys/qemu_trace/process_name to allow user +programs to add a trace record for a process name change. Removed +the tracing of thread and process names from the exit() system call +because that was not sufficiently general. Added tracing of thread +names in set_task_comm() and daemonize(). Added tracing of the +thread group id to fork() and clone(). + +Signed-off-by: Jack Veenstra <veenstra@google.com> +Signed-off-by: Mike Chan <mike@android.com> +--- + arch/arm/kernel/entry-armv.S | 5 + + drivers/misc/Kconfig | 5 + + drivers/misc/Makefile | 1 + + drivers/misc/qemutrace/Makefile | 2 + + drivers/misc/qemutrace/qemu_trace.c | 386 +++++++++++++++++++++++++++++ + drivers/misc/qemutrace/qemu_trace.h | 22 ++ + drivers/misc/qemutrace/qemu_trace_sysfs.c | 182 ++++++++++++++ + fs/exec.c | 14 + + kernel/exit.c | 14 + + kernel/fork.c | 8 + + kernel/sched.c | 9 + + mm/mmap.c | 13 + + 12 files changed, 661 insertions(+), 0 deletions(-) + create mode 100644 drivers/misc/qemutrace/Makefile + create mode 100644 drivers/misc/qemutrace/qemu_trace.c + create mode 100644 drivers/misc/qemutrace/qemu_trace.h + create mode 100644 drivers/misc/qemutrace/qemu_trace_sysfs.c + +--- a/arch/arm/kernel/entry-armv.S ++++ b/arch/arm/kernel/entry-armv.S +@@ -733,6 +733,11 @@ ENTRY(__switch_to) + ldr r0, =thread_notify_head + mov r1, #THREAD_NOTIFY_SWITCH + bl atomic_notifier_call_chain ++#ifdef CONFIG_QEMU_TRACE ++/* ++ mcr p15, 0, r0, c15, c0, 0 @ signal context switch ++*/ ++#endif + mov r0, r5 + ldmia r4, {r4 - sl, fp, sp, pc} @ Load all regs saved previously + UNWIND(.fnend ) +--- a/drivers/misc/Kconfig ++++ b/drivers/misc/Kconfig +@@ -233,6 +233,11 @@ config ISL29003 + This driver can also be built as a module. If so, the module + will be called isl29003. + ++config QEMU_TRACE ++ tristate "Virtual Device for QEMU tracing" ++ ---help--- ++ This is a virtual device for QEMU tracing. ++ + source "drivers/misc/c2port/Kconfig" + source "drivers/misc/eeprom/Kconfig" + +--- a/drivers/misc/Makefile ++++ b/drivers/misc/Makefile +@@ -20,4 +20,5 @@ obj-$(CONFIG_SGI_GRU) += sgi-gru/ + obj-$(CONFIG_HP_ILO) += hpilo.o + obj-$(CONFIG_ISL29003) += isl29003.o + obj-$(CONFIG_C2PORT) += c2port/ ++obj-$(CONFIG_QEMU_TRACE) += qemutrace/ + obj-y += eeprom/ +--- /dev/null ++++ b/drivers/misc/qemutrace/Makefile +@@ -0,0 +1,2 @@ ++obj-$(CONFIG_QEMU_TRACE) := qemu_trace.o ++obj-$(CONFIG_QEMU_TRACE) += qemu_trace_sysfs.o +--- /dev/null ++++ b/drivers/misc/qemutrace/qemu_trace.c +@@ -0,0 +1,386 @@ ++/* drivers/misc/qemutrace/qemu_trace.c ++ * ++ * Copyright (C) 2007-2008 Google, Inc. ++ * ++ * This software is licensed under the terms of the GNU General Public ++ * License version 2, as published by the Free Software Foundation, and ++ * may be copied, distributed, and modified under those terms. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ * ++ */ ++ ++#include <linux/module.h> ++#include <linux/kernel.h> ++#include <linux/spinlock.h> ++#include <linux/miscdevice.h> ++#include <linux/pci.h> ++#include <linux/proc_fs.h> ++#include <linux/platform_device.h> ++#include <linux/mm.h> ++#include <linux/sched.h> ++#include <asm/uaccess.h> ++#include <asm/io.h> ++#include <asm/sizes.h> ++#include "qemu_trace.h" ++ ++/* trace device registers */ ++#define TRACE_DEV_REG_SWITCH 0 ++#define TRACE_DEV_REG_FORK 1 ++#define TRACE_DEV_REG_EXECVE_PID 2 ++#define TRACE_DEV_REG_EXECVE_VMSTART 3 ++#define TRACE_DEV_REG_EXECVE_VMEND 4 ++#define TRACE_DEV_REG_EXECVE_OFFSET 5 ++#define TRACE_DEV_REG_EXECVE_EXEPATH 6 ++#define TRACE_DEV_REG_EXIT 7 ++#define TRACE_DEV_REG_CMDLINE 8 ++#define TRACE_DEV_REG_CMDLINE_LEN 9 ++#define TRACE_DEV_REG_MMAP_EXEPATH 10 ++#define TRACE_DEV_REG_INIT_PID 11 ++#define TRACE_DEV_REG_INIT_NAME 12 ++#define TRACE_DEV_REG_CLONE 13 ++#define TRACE_DEV_REG_UNMAP_START 14 ++#define TRACE_DEV_REG_UNMAP_END 15 ++#define TRACE_DEV_REG_NAME 16 ++#define TRACE_DEV_REG_TGID 17 ++#define TRACE_DEV_REG_DYN_SYM 50 ++#define TRACE_DEV_REG_DYN_SYM_ADDR 51 ++#define TRACE_DEV_REG_REMOVE_ADDR 52 ++#define TRACE_DEV_REG_ENABLE 100 ++ ++static unsigned char __iomem *qt_base; ++static int init_called; ++ ++/* PIDs that start before our device registered */ ++#define MAX_INIT_PIDS 2048 ++static int tb_next = 0; ++static int init_pids[MAX_INIT_PIDS]; ++static DEFINE_SPINLOCK(qemu_trace_lock); ++ ++void qemu_trace_start(void) ++{ ++ unsigned long irq_flags; ++ ++ if (qt_base == NULL) ++ return; ++ spin_lock_irqsave(&qemu_trace_lock, irq_flags); ++ writel(1, qt_base + (TRACE_DEV_REG_ENABLE << 2)); ++ spin_unlock_irqrestore(&qemu_trace_lock, irq_flags); ++} ++ ++void qemu_trace_stop(void) ++{ ++ unsigned long irq_flags; ++ ++ if (qt_base == NULL) ++ return; ++ spin_lock_irqsave(&qemu_trace_lock, irq_flags); ++ writel(0, qt_base + (TRACE_DEV_REG_ENABLE << 2)); ++ spin_unlock_irqrestore(&qemu_trace_lock, irq_flags); ++} ++ ++int qemu_trace_get_tracing(void) ++{ ++ int val = 0; ++ if (qt_base != NULL) ++ val = readl(qt_base + (TRACE_DEV_REG_ENABLE << 2)); ++ return val; ++} ++ ++void qemu_trace_add_mapping(unsigned int addr, const char *symbol) ++{ ++ unsigned long irq_flags; ++ ++ if (qt_base == NULL) ++ return; ++ ++ /* Write the address first, then the symbol name. */ ++ spin_lock_irqsave(&qemu_trace_lock, irq_flags); ++ writel(addr, qt_base + (TRACE_DEV_REG_DYN_SYM_ADDR << 2)); ++ writel(symbol, qt_base + (TRACE_DEV_REG_DYN_SYM << 2)); ++ spin_unlock_irqrestore(&qemu_trace_lock, irq_flags); ++} ++ ++void qemu_trace_remove_mapping(unsigned int addr) ++{ ++ unsigned long irq_flags; ++ ++ if (qt_base == NULL) ++ return; ++ ++ spin_lock_irqsave(&qemu_trace_lock, irq_flags); ++ writel(addr, qt_base + (TRACE_DEV_REG_REMOVE_ADDR << 2)); ++ spin_unlock_irqrestore(&qemu_trace_lock, irq_flags); ++} ++ ++/* trace the context switch */ ++void qemu_trace_cs(struct task_struct *next) ++{ ++ unsigned long irq_flags; ++ ++ if (qt_base == NULL) ++ return; ++ ++ spin_lock_irqsave(&qemu_trace_lock, irq_flags); ++ writel(task_pid_nr(next), qt_base); ++ spin_unlock_irqrestore(&qemu_trace_lock, irq_flags); ++} ++EXPORT_SYMBOL(qemu_trace_cs); ++ ++/* trace the execve */ ++void qemu_trace_execve(int argc, char __user * __user *argv) ++{ ++ unsigned long irq_flags; ++ char page[PAGE_SIZE]; ++ char *ptr = page; ++ ++ if (qt_base == NULL) ++ return; ++ ++ while (argc-- > 0) { ++ char __user *str; ++ int len; ++ if (get_user(str, argv ++)) ++ return; ++ len = strnlen_user(str, PAGE_SIZE); ++ if (len == 0) ++ return; ++ if (copy_from_user(ptr, str, len)) ++ return; ++ ptr += len; ++ } ++ ++ if (ptr > page) { ++ int len = ptr - page; ++ spin_lock_irqsave(&qemu_trace_lock, irq_flags); ++ writel(len, qt_base + (TRACE_DEV_REG_CMDLINE_LEN << 2)); ++ writel(page, qt_base + (TRACE_DEV_REG_CMDLINE << 2)); ++ spin_unlock_irqrestore(&qemu_trace_lock, irq_flags); ++ } ++} ++EXPORT_SYMBOL(qemu_trace_execve); ++ ++/* trace the mmap */ ++void qemu_trace_mmap(struct vm_area_struct *vma) ++{ ++ unsigned long irq_flags; ++ char page[PAGE_SIZE]; ++ char *p; ++ ++ if (qt_base == NULL) ++ return; ++ ++ if (vma->vm_file == NULL) ++ return; ++ ++ p = d_path(&vma->vm_file->f_path, page, PAGE_SIZE); ++ if (IS_ERR(p)) ++ return; ++ ++ spin_lock_irqsave(&qemu_trace_lock, irq_flags); ++ writel(vma->vm_start, qt_base + (TRACE_DEV_REG_EXECVE_VMSTART << 2)); ++ writel(vma->vm_end, qt_base + (TRACE_DEV_REG_EXECVE_VMEND << 2)); ++ writel(vma->vm_pgoff * PAGE_SIZE, qt_base + (TRACE_DEV_REG_EXECVE_OFFSET << 2)); ++ writel(p, qt_base + (TRACE_DEV_REG_MMAP_EXEPATH << 2)); ++ spin_unlock_irqrestore(&qemu_trace_lock, irq_flags); ++} ++EXPORT_SYMBOL(qemu_trace_mmap); ++ ++/* trace the munmap */ ++void qemu_trace_munmap(unsigned long start, unsigned long end) ++{ ++ unsigned long irq_flags; ++ ++ if (qt_base == NULL) ++ return; ++ ++ spin_lock_irqsave(&qemu_trace_lock, irq_flags); ++ writel(start, qt_base + (TRACE_DEV_REG_UNMAP_START << 2)); ++ writel(end, qt_base + (TRACE_DEV_REG_UNMAP_END << 2)); ++ spin_unlock_irqrestore(&qemu_trace_lock, irq_flags); ++} ++EXPORT_SYMBOL(qemu_trace_munmap); ++ ++/* trace the fork */ ++void qemu_trace_fork(struct task_struct *forked, unsigned long clone_flags) ++{ ++ unsigned long irq_flags; ++ ++ spin_lock_irqsave(&qemu_trace_lock, irq_flags); ++ if (qt_base == NULL) { ++ if (tb_next >= MAX_INIT_PIDS) { ++ if (!init_called) ++ printk(KERN_ERR ++ "QEMU Trace: too many PIDs before " ++ "device registered ignoring %d\n", ++ forked->pid); ++ } else { ++ init_pids[tb_next] = task_pid_nr(forked); ++ tb_next++; ++ } ++ } else { ++ writel(task_tgid_nr(forked), qt_base + (TRACE_DEV_REG_TGID << 2)); ++ if (clone_flags & CLONE_VM) ++ writel(task_pid_nr(forked), qt_base + (TRACE_DEV_REG_CLONE << 2)); ++ else ++ writel(task_pid_nr(forked), qt_base + (TRACE_DEV_REG_FORK << 2)); ++ } ++ spin_unlock_irqrestore(&qemu_trace_lock, irq_flags); ++} ++EXPORT_SYMBOL(qemu_trace_fork); ++ ++/* trace the exit */ ++void qemu_trace_exit(int code) ++{ ++ unsigned long irq_flags; ++ ++ if (qt_base == NULL) ++ return; ++ ++ spin_lock_irqsave(&qemu_trace_lock, irq_flags); ++ writel(code, qt_base + (TRACE_DEV_REG_EXIT << 2)); ++ spin_unlock_irqrestore(&qemu_trace_lock, irq_flags); ++} ++EXPORT_SYMBOL(qemu_trace_exit); ++ ++/* trace the thread name */ ++void qemu_trace_thread_name(const char *name) ++{ ++ unsigned long irq_flags; ++ ++ if (qt_base == NULL) ++ return; ++ ++ spin_lock_irqsave(&qemu_trace_lock, irq_flags); ++ writel(name, qt_base + (TRACE_DEV_REG_NAME << 2)); ++ spin_unlock_irqrestore(&qemu_trace_lock, irq_flags); ++} ++EXPORT_SYMBOL(qemu_trace_thread_name); ++ ++/* trace the process name */ ++void qemu_trace_process_name(const char *name) ++{ ++ unsigned long irq_flags; ++ ++ if (qt_base == NULL) ++ return; ++ ++ spin_lock_irqsave(&qemu_trace_lock, irq_flags); ++ writel(name, qt_base + (TRACE_DEV_REG_NAME << 2)); ++ spin_unlock_irqrestore(&qemu_trace_lock, irq_flags); ++} ++EXPORT_SYMBOL(qemu_trace_process_name); ++ ++static void qemu_trace_pid_exec(struct task_struct *tsk) ++{ ++ unsigned long irq_flags; ++ char page[PAGE_SIZE]; ++ struct mm_struct *mm = get_task_mm(tsk); ++ if (mm == NULL) ++ return; ++ down_read(&mm->mmap_sem); ++ { ++ struct vm_area_struct *vma = mm->mmap; ++ while (vma) { ++ if ((vma->vm_flags & VM_EXEC) && vma->vm_file) { ++ char *p; ++ p = d_path(&vma->vm_file->f_path, page, PAGE_SIZE); ++ if (!IS_ERR(p)) { ++ spin_lock_irqsave(&qemu_trace_lock, irq_flags); ++ writel(vma->vm_start, qt_base + (TRACE_DEV_REG_EXECVE_VMSTART << 2)); ++ writel(vma->vm_end, qt_base + (TRACE_DEV_REG_EXECVE_VMEND << 2)); ++ writel(vma->vm_pgoff * PAGE_SIZE, qt_base + (TRACE_DEV_REG_EXECVE_OFFSET << 2)); ++ writel(p, qt_base + (TRACE_DEV_REG_EXECVE_EXEPATH << 2)); ++ spin_unlock_irqrestore(&qemu_trace_lock, irq_flags); ++ } ++ } ++ vma = vma->vm_next; ++ } ++ } ++ up_read(&mm->mmap_sem); ++ mmput(mm); ++} ++ ++static void qemu_trace_dump_init_threads(void) ++{ ++ unsigned long irq_flags; ++ int i; ++ ++ for (i = 0; i < tb_next; i++) { ++ struct task_struct *tsk; ++ struct pid *pid = find_get_pid(init_pids[i]); ++ if (pid == NULL) ++ continue; ++ ++ if ((tsk = get_pid_task(pid, PIDTYPE_PID)) != NULL) { ++ /* first give the pid and name */ ++ task_lock(tsk); ++ spin_lock_irqsave(&qemu_trace_lock, irq_flags); ++ writel(task_tgid_nr(tsk), qt_base + (TRACE_DEV_REG_TGID << 2)); ++ writel(task_pid_nr(tsk), qt_base + (TRACE_DEV_REG_INIT_PID << 2)); ++ writel(tsk->comm, qt_base + (TRACE_DEV_REG_INIT_NAME << 2)); ++ spin_unlock_irqrestore(&qemu_trace_lock, irq_flags); ++ task_unlock(tsk); ++ /* check if the task has execs */ ++ qemu_trace_pid_exec(tsk); ++ } ++ } ++} ++ ++static int qemu_trace_probe(struct platform_device *pdev) ++{ ++ struct resource *r; ++ ++ /* not thread safe, but this should not happen */ ++ if (qt_base != NULL) { ++ printk(KERN_ERR "QEMU TRACE Device: already mapped at %p\n", qt_base); ++ return -ENODEV; ++ } ++ r = platform_get_resource(pdev, IORESOURCE_MEM, 0); ++ if (r == NULL) ++ return -EINVAL; ++ qt_base = ioremap(r->start, PAGE_SIZE); ++ printk(KERN_INFO "QEMU TRACE Device: The mapped IO base is %p\n", qt_base); ++ ++ qemu_trace_dump_init_threads(); ++ ++ return 0; ++} ++ ++static int qemu_trace_remove(struct platform_device *pdev) ++{ ++ iounmap(qt_base); ++ qt_base = NULL; ++ return 0; ++} ++ ++static struct platform_driver qemu_trace = { ++ .probe = qemu_trace_probe, ++ .remove = qemu_trace_remove, ++ .driver = { ++ .name = "qemu_trace" ++ } ++}; ++ ++static int __init qemu_trace_dev_init(void) ++{ ++ int ret; ++ ret = platform_driver_register(&qemu_trace); ++ init_called = 1; ++ return ret; ++} ++ ++static void qemu_trace_dev_exit(void) ++{ ++ platform_driver_unregister(&qemu_trace); ++} ++ ++ ++module_init(qemu_trace_dev_init); ++module_exit(qemu_trace_dev_exit); ++ ++MODULE_AUTHOR("Ye Wen <ywen@google.com>"); ++MODULE_LICENSE("GPL"); +--- /dev/null ++++ b/drivers/misc/qemutrace/qemu_trace.h +@@ -0,0 +1,22 @@ ++/* drivers/misc/qemutrace/qemu_trace.h ++ * ++ * Copyright (C) 2007-2008 Google, Inc. ++ * ++ * This software is licensed under the terms of the GNU General Public ++ * ++ * License version 2, as published by the Free Software Foundation, and ++ * may be copied, distributed, and modified under those terms. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ * ++ */ ++ ++void qemu_trace_start(void); ++void qemu_trace_stop(void); ++int qemu_trace_get_tracing(void); ++void qemu_trace_add_mapping(unsigned int addr, const char *symbol); ++void qemu_trace_remove_mapping(unsigned int addr); ++void qemu_trace_process_name(const char *name); +--- /dev/null ++++ b/drivers/misc/qemutrace/qemu_trace_sysfs.c +@@ -0,0 +1,182 @@ ++/* drivers/misc/qemu_sysfs.c ++ * ++ * Copyright (C) 2007-2008 Google, Inc. ++ * Author: Jack Veenstra ++ * ++ * This software is licensed under the terms of the GNU General Public ++ * License version 2, as published by the Free Software Foundation, and ++ * may be copied, distributed, and modified under those terms. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ * ++ */ ++ ++#include <linux/list.h> ++#include <linux/module.h> ++#include <linux/miscdevice.h> ++#include <linux/sysdev.h> ++#include <linux/fs.h> ++#include <linux/poll.h> ++#include <linux/interrupt.h> ++#include <linux/delay.h> ++#include <linux/clk.h> ++#include <linux/wait.h> ++#include "qemu_trace.h" ++ ++MODULE_DESCRIPTION("Qemu Trace Driver"); ++MODULE_LICENSE("GPL"); ++MODULE_VERSION("1.0"); ++ ++static struct kobject *qemu_trace_kobj; ++ ++static ssize_t state_show(struct kobject *kobj, struct kobj_attribute *attr, char * buf) ++{ ++ int val = qemu_trace_get_tracing(); ++ buf[0] = '0' + val; ++ buf[1] = '\n'; ++ return 2; ++} ++ ++static ssize_t state_store(struct kobject *kobj, struct kobj_attribute *attr, const char * buf, size_t n) ++{ ++ if (n <= 0) ++ return -EINVAL; ++ if (buf[0] == '0') ++ qemu_trace_stop(); ++ else if (buf[0] == '1') ++ qemu_trace_start(); ++ else ++ return -EINVAL; ++ return n; ++} ++ ++static ssize_t symbol_show(struct kobject *kobj, struct kobj_attribute *attr, char * buf) ++{ ++ return 0; ++} ++ ++// We are expecting a string of the form "addr symbol" where 'addr' is a hex address ++// (without the leading '0x') and symbol is a newline-terminated string. This symbol ++// with its corresponding address will be added to the trace file. ++// ++// To remove the mapping for (addr, symbol) in the trace file, write just the ++// address. As before, the address is in hex without the leading '0x'. It can ++// be newline-terminated or zero-terminated. ++static ssize_t symbol_store(struct kobject *kobj, struct kobj_attribute *attr, const char * buf, size_t n) ++{ ++ const char *cp; ++ unsigned int addr = 0; ++ int len; ++ char *sym; ++ ++ if (n <= 0 || buf == NULL) ++ return -EINVAL; ++ for (cp = buf; *cp != ' '; ++cp) { ++ unsigned int digit; ++ ++ if (*cp >= '0' && *cp <= '9') ++ digit = *cp - '0'; ++ else if (*cp >= 'a' && *cp <= 'f') ++ digit = *cp - 'a' + 10; ++ else if (*cp == 0 || *cp == '\n') { ++ qemu_trace_remove_mapping(addr); ++ return n; ++ } else ++ return -EINVAL; ++ addr = (addr << 4) + digit; ++ } ++ // Move past the space ++ cp += 1; ++ ++ // Copy the string to a new buffer so that we can replace the newline ++ // with '\0'. ++ len = strlen(cp); ++ sym = kzalloc(len + 1, GFP_KERNEL); ++ strcpy(sym, cp); ++ if (sym[len - 1] == '\n') ++ sym[len - 1] = 0; ++ ++ qemu_trace_add_mapping(addr, sym); ++ kfree(sym); ++ return n; ++} ++ ++static ssize_t process_name_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf) ++{ ++ return 0; ++} ++ ++/* This expects a string that is the process name. If the string contains ++ * a trailing newline, that is removed in the emulator tracing code because ++ * it is simpler to do it there. ++ */ ++static ssize_t process_name_store(struct kobject *kobj, struct kobj_attribute *attr, const char *buf, size_t n) ++{ ++ if (n <= 0 || buf == NULL) ++ return -EINVAL; ++ ++ qemu_trace_process_name(buf); ++ return n; ++} ++ ++ ++#define qemu_trace_attr(_name) \ ++static struct kobj_attribute _name##_attr = { \ ++ .attr = { \ ++ .name = __stringify(_name), \ ++ .mode = 0666, \ ++ }, \ ++ .show = _name##_show, \ ++ .store = _name##_store, \ ++} ++ ++qemu_trace_attr(state); ++qemu_trace_attr(symbol); ++qemu_trace_attr(process_name); ++ ++static struct attribute * qemu_trace_attrs[] = { ++ &state_attr.attr, ++ &symbol_attr.attr, ++ &process_name_attr.attr, ++ NULL, ++}; ++ ++static struct attribute_group qemu_trace_attr_group = { ++ .attrs = qemu_trace_attrs, ++}; ++ ++static int __init qemu_trace_init(void) ++{ ++ int ret; ++ ++ qemu_trace_kobj = kobject_create_and_add("qemu_trace", NULL); ++ if (qemu_trace_kobj == NULL) { ++ printk("qemu_trace_init: kobject_create_and_add failed\n"); ++ ret = -ENOMEM; ++ return ret; ++ } ++ ret = sysfs_create_group(qemu_trace_kobj, &qemu_trace_attr_group); ++ if (ret) { ++ printk("qemu_trace_init: sysfs_create_group failed\n"); ++ goto err; ++ } ++ ++ return 0; ++ ++err: ++ kobject_del(qemu_trace_kobj); ++ qemu_trace_kobj = NULL; ++ return ret; ++} ++ ++static void __exit qemu_trace_exit(void) ++{ ++ sysfs_remove_group(qemu_trace_kobj, &qemu_trace_attr_group); ++ kobject_del(qemu_trace_kobj); ++} ++ ++core_initcall(qemu_trace_init); ++module_exit(qemu_trace_exit); +--- a/fs/exec.c ++++ b/fs/exec.c +@@ -59,6 +59,9 @@ + #include <asm/mmu_context.h> + #include <asm/tlb.h> + #include "internal.h" ++#ifdef CONFIG_QEMU_TRACE ++ void qemu_trace_thread_name(char *name); ++#endif + + int core_uses_pid; + char core_pattern[CORENAME_MAX_SIZE] = "core"; +@@ -922,6 +925,9 @@ void set_task_comm(struct task_struct *t + task_lock(tsk); + strlcpy(tsk->comm, buf, sizeof(tsk->comm)); + task_unlock(tsk); ++#ifdef CONFIG_QEMU_TRACE ++ qemu_trace_thread_name(buf); ++#endif + } + + int flush_old_exec(struct linux_binprm * bprm) +@@ -1245,6 +1251,10 @@ void free_bprm(struct linux_binprm *bprm + kfree(bprm); + } + ++#ifdef CONFIG_QEMU_TRACE ++extern void qemu_trace_execve(int argc, char __user * __user * argv); ++#endif ++ + /* + * sys_execve() executes a new program. + */ +@@ -1324,6 +1334,10 @@ int do_execve(char * filename, + goto out; + + current->flags &= ~PF_KTHREAD; ++#ifdef CONFIG_QEMU_TRACE ++ qemu_trace_execve(bprm->argc, argv); ++#endif ++ + retval = search_binary_handler(bprm,regs); + if (retval < 0) + goto out; +--- a/kernel/exit.c ++++ b/kernel/exit.c +@@ -60,6 +60,11 @@ DEFINE_TRACE(sched_process_free); + DEFINE_TRACE(sched_process_exit); + DEFINE_TRACE(sched_process_wait); + ++#ifdef CONFIG_QEMU_TRACE ++void qemu_trace_thread_name(char *name); ++void qemu_trace_exit(int code); ++#endif ++ + static void exit_mm(struct task_struct * tsk); + + static void __unhash_process(struct task_struct *p) +@@ -426,6 +431,9 @@ void daemonize(const char *name, ...) + va_start(args, name); + vsnprintf(current->comm, sizeof(current->comm), name, args); + va_end(args); ++#ifdef CONFIG_QEMU_TRACE ++ qemu_trace_thread_name(current->comm); ++#endif + + /* + * If we were started as result of loading a module, close all of the +@@ -1012,6 +1020,12 @@ NORET_TYPE void do_exit(long code) + preempt_disable(); + /* causes final put_task_struct in finish_task_switch(). */ + tsk->state = TASK_DEAD; ++ ++#ifdef CONFIG_QEMU_TRACE ++ /* Emit a trace record for the exit() call. */ ++ qemu_trace_exit(code); ++#endif ++ + schedule(); + BUG(); + /* Avoid "noreturn function does return". */ +--- a/kernel/fork.c ++++ b/kernel/fork.c +@@ -1333,6 +1333,10 @@ struct task_struct * __cpuinit fork_idle + return task; + } + ++#ifdef CONFIG_QEMU_TRACE ++extern void qemu_trace_fork(struct task_struct *forked, unsigned long clone_flags); ++#endif ++ + /* + * Ok, this is the main fork-routine. + * +@@ -1434,6 +1438,10 @@ long do_fork(unsigned long clone_flags, + tracehook_report_clone_complete(trace, regs, + clone_flags, nr, p); + ++#ifdef CONFIG_QEMU_TRACE ++ qemu_trace_fork(p, clone_flags); ++#endif ++ + if (clone_flags & CLONE_VFORK) { + freezer_do_not_count(); + wait_for_completion(&vfork); +--- a/kernel/sched.c ++++ b/kernel/sched.c +@@ -2747,6 +2747,10 @@ asmlinkage void schedule_tail(struct tas + put_user(task_pid_vnr(current), current->set_child_tid); + } + ++#ifdef CONFIG_QEMU_TRACE ++void qemu_trace_cs(struct task_struct *next); ++#endif ++ + /* + * context_switch - switch to the new MM and the new + * thread's register state. +@@ -2789,6 +2793,11 @@ context_switch(struct rq *rq, struct tas + spin_release(&rq->lock.dep_map, 1, _THIS_IP_); + #endif + ++#ifdef CONFIG_QEMU_TRACE ++ /* Emit a trace record for the context switch. */ ++ qemu_trace_cs(next); ++#endif ++ + /* Here we just switch the register state and the stack. */ + switch_to(prev, next, prev); + +--- a/mm/mmap.c ++++ b/mm/mmap.c +@@ -903,6 +903,11 @@ void vm_stat_account(struct mm_struct *m + } + #endif /* CONFIG_PROC_FS */ + ++#ifdef CONFIG_QEMU_TRACE ++extern void qemu_trace_mmap(struct vm_area_struct * vma); ++extern void qemu_trace_munmap(unsigned long start, unsigned long end); ++#endif ++ + /* + * The caller must hold down_write(current->mm->mmap_sem). + */ +@@ -1209,6 +1214,10 @@ munmap_back: + pgoff = vma->vm_pgoff; + vm_flags = vma->vm_flags; + ++#ifdef CONFIG_QEMU_TRACE ++ qemu_trace_mmap(vma); ++#endif ++ + if (vma_wants_writenotify(vma)) + vma->vm_page_prot = vm_get_page_prot(vm_flags & ~VM_SHARED); + +@@ -1935,6 +1944,10 @@ int do_munmap(struct mm_struct *mm, unsi + * Remove the vma's, and unmap the actual pages + */ + detach_vmas_to_be_unmapped(mm, vma, prev, end); ++ ++#ifdef CONFIG_QEMU_TRACE ++ qemu_trace_munmap(start, end); ++#endif + unmap_region(mm, vma, prev, start, end); + + /* Fix up all other VM information */ diff --git a/target/linux/goldfish/patches-2.6.30/0133--ARM-goldfish-qemutrace-Add-mmap-support.patch b/target/linux/goldfish/patches-2.6.30/0133--ARM-goldfish-qemutrace-Add-mmap-support.patch new file mode 100644 index 0000000000..44554a6176 --- /dev/null +++ b/target/linux/goldfish/patches-2.6.30/0133--ARM-goldfish-qemutrace-Add-mmap-support.patch @@ -0,0 +1,84 @@ +From 2309613958ee518f94f1a7ba900e08e604e06048 Mon Sep 17 00:00:00 2001 +From: Jack Veenstra <veenstra@android.com> +Date: Fri, 1 May 2009 18:50:10 -0700 +Subject: [PATCH 133/134] [ARM] goldfish: qemutrace: Add mmap support. + +This makes a page of data available for writing from user-space to allow +the Dalvik interpreter to send method trace information to the emulator. + +Signed-off-by: Jack Veenstra <veenstra@android.com> +--- + drivers/misc/qemutrace/qemu_trace.c | 35 ++++++++++++++++++++++++++++++++++- + 1 files changed, 34 insertions(+), 1 deletions(-) + +--- a/drivers/misc/qemutrace/qemu_trace.c ++++ b/drivers/misc/qemutrace/qemu_trace.c +@@ -53,6 +53,7 @@ + + static unsigned char __iomem *qt_base; + static int init_called; ++static uint32_t qemu_trace_paddr; + + /* PIDs that start before our device registered */ + #define MAX_INIT_PIDS 2048 +@@ -330,8 +331,30 @@ static void qemu_trace_dump_init_threads + } + } + ++static int qemu_trace_mmap_fop(struct file *file, struct vm_area_struct *vma) ++{ ++ int ret = io_remap_pfn_range(vma, vma->vm_start, ++ (qemu_trace_paddr >> PAGE_SHIFT) + 1, ++ PAGE_SIZE, vma->vm_page_prot); ++ if (ret < 0) ++ return ret; ++ return 0; ++} ++ ++static const struct file_operations qemu_trace_fops = { ++ .owner = THIS_MODULE, ++ .mmap = qemu_trace_mmap_fop, ++}; ++ ++static struct miscdevice qemu_trace_device = { ++ .minor = MISC_DYNAMIC_MINOR, ++ .name = "qemu_trace", ++ .fops = &qemu_trace_fops, ++}; ++ + static int qemu_trace_probe(struct platform_device *pdev) + { ++ int err; + struct resource *r; + + /* not thread safe, but this should not happen */ +@@ -340,18 +363,28 @@ static int qemu_trace_probe(struct platf + return -ENODEV; + } + r = platform_get_resource(pdev, IORESOURCE_MEM, 0); +- if (r == NULL) ++ if (r == NULL || r->end - r->start < 2 * PAGE_SIZE - 1) + return -EINVAL; ++ qemu_trace_paddr = r->start; + qt_base = ioremap(r->start, PAGE_SIZE); + printk(KERN_INFO "QEMU TRACE Device: The mapped IO base is %p\n", qt_base); + + qemu_trace_dump_init_threads(); ++ err = misc_register(&qemu_trace_device); ++ if (err) ++ goto err_misc_register; + + return 0; ++ ++err_misc_register: ++ iounmap(qt_base); ++ qt_base = NULL; ++ return err; + } + + static int qemu_trace_remove(struct platform_device *pdev) + { ++ misc_deregister(&qemu_trace_device); + iounmap(qt_base); + qt_base = NULL; + return 0; diff --git a/target/linux/goldfish/patches-2.6.30/1000-nand_driver_fixes.patch b/target/linux/goldfish/patches-2.6.30/1000-nand_driver_fixes.patch new file mode 100644 index 0000000000..0cd366ce90 --- /dev/null +++ b/target/linux/goldfish/patches-2.6.30/1000-nand_driver_fixes.patch @@ -0,0 +1,94 @@ +--- a/drivers/mtd/devices/goldfish_nand.c ++++ b/drivers/mtd/devices/goldfish_nand.c +@@ -65,7 +65,7 @@ static int goldfish_nand_erase(struct mt + if(rem) + goto invalid_arg; + ofs *= (mtd->writesize + mtd->oobsize); +- ++ + if(len % mtd->writesize) + goto invalid_arg; + len = len / mtd->writesize * (mtd->writesize + mtd->oobsize); +@@ -94,15 +94,12 @@ static int goldfish_nand_read_oob(struct + + if(ofs + ops->len > mtd->size) + goto invalid_arg; +- if(ops->datbuf && ops->len && ops->len != mtd->writesize) +- goto invalid_arg; + if(ops->ooblen + ops->ooboffs > mtd->oobsize) + goto invalid_arg; + + rem = do_div(ofs, mtd->writesize); +- if(rem) +- goto invalid_arg; + ofs *= (mtd->writesize + mtd->oobsize); ++ ofs += rem; + + if(ops->datbuf) + ops->retlen = goldfish_nand_cmd(mtd, NAND_CMD_READ, ofs, +@@ -131,7 +128,7 @@ static int goldfish_nand_write_oob(struc + goto invalid_arg; + if(ops->ooblen + ops->ooboffs > mtd->oobsize) + goto invalid_arg; +- ++ + rem = do_div(ofs, mtd->writesize); + if(rem) + goto invalid_arg; +@@ -160,15 +157,24 @@ static int goldfish_nand_read(struct mtd + + if(from + len > mtd->size) + goto invalid_arg; +- if(len != mtd->writesize) +- goto invalid_arg; ++ ++ *retlen = 0; + + rem = do_div(from, mtd->writesize); +- if(rem) +- goto invalid_arg; + from *= (mtd->writesize + mtd->oobsize); ++ from += rem; + +- *retlen = goldfish_nand_cmd(mtd, NAND_CMD_READ, from, len, buf); ++ do { ++ *retlen += goldfish_nand_cmd(mtd, NAND_CMD_READ, from, min(len, mtd->writesize - rem), buf); ++ if (len > mtd->writesize - rem) { ++ len -= mtd->writesize - rem; ++ buf += mtd->writesize - rem; ++ from += mtd->writesize + mtd->oobsize - rem; ++ rem = 0; ++ } else { ++ len = 0; ++ } ++ } while (len); + return 0; + + invalid_arg: +@@ -184,15 +190,23 @@ static int goldfish_nand_write(struct mt + + if(to + len > mtd->size) + goto invalid_arg; +- if(len != mtd->writesize) +- goto invalid_arg; + + rem = do_div(to, mtd->writesize); + if(rem) + goto invalid_arg; + to *= (mtd->writesize + mtd->oobsize); + +- *retlen = goldfish_nand_cmd(mtd, NAND_CMD_WRITE, to, len, (void *)buf); ++ *retlen = 0; ++ do { ++ *retlen += goldfish_nand_cmd(mtd, NAND_CMD_WRITE, to, min(len, mtd->writesize), (void *)buf); ++ if (len > mtd->writesize) { ++ len -= mtd->writesize; ++ buf += mtd->writesize; ++ to += mtd->writesize + mtd->oobsize; ++ } else { ++ len = 0; ++ } ++ } while (len); + return 0; + + invalid_arg: |