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Diffstat (limited to 'target/linux/adm5120/patches-2.6.25/902-usb_use_debugfs_instead_of_sysfs.patch')
-rw-r--r--target/linux/adm5120/patches-2.6.25/902-usb_use_debugfs_instead_of_sysfs.patch357
1 files changed, 0 insertions, 357 deletions
diff --git a/target/linux/adm5120/patches-2.6.25/902-usb_use_debugfs_instead_of_sysfs.patch b/target/linux/adm5120/patches-2.6.25/902-usb_use_debugfs_instead_of_sysfs.patch
deleted file mode 100644
index 5b513c0f66..0000000000
--- a/target/linux/adm5120/patches-2.6.25/902-usb_use_debugfs_instead_of_sysfs.patch
+++ /dev/null
@@ -1,357 +0,0 @@
---- a/drivers/usb/host/adm5120.h
-+++ b/drivers/usb/host/adm5120.h
-@@ -431,6 +431,13 @@
- #define OHCI_QUIRK_BE_MMIO 0x10 /* BE registers */
- #define OHCI_QUIRK_ZFMICRO 0x20 /* Compaq ZFMicro chipset*/
- // there are also chip quirks/bugs in init logic
-+
-+#ifdef DEBUG
-+ struct dentry *debug_dir;
-+ struct dentry *debug_async;
-+ struct dentry *debug_periodic;
-+ struct dentry *debug_registers;
-+#endif
- };
-
- /* convert between an hcd pointer and the corresponding ahcd_hcd */
---- a/drivers/usb/host/adm5120-hcd.c
-+++ b/drivers/usb/host/adm5120-hcd.c
-@@ -35,6 +35,7 @@
- #include <linux/dma-mapping.h>
- #include <linux/dmapool.h>
- #include <linux/reboot.h>
-+#include <linux/debugfs.h>
-
- #include <asm/io.h>
- #include <asm/irq.h>
-@@ -804,6 +805,14 @@
- pr_info("%s: block sizes: ed %Zd td %Zd\n", hcd_name,
- sizeof (struct ed), sizeof (struct td));
-
-+#ifdef DEBUG
-+ admhc_debug_root = debugfs_create_dir("admhc", NULL);
-+ if (!admhc_debug_root) {
-+ ret = -ENOENT;
-+ goto error_debug;
-+ }
-+#endif
-+
- #ifdef PLATFORM_DRIVER
- ret = platform_driver_register(&PLATFORM_DRIVER);
- if (ret < 0)
-@@ -816,6 +825,12 @@
- platform_driver_unregister(&PLATFORM_DRIVER);
- error_platform:
- #endif
-+
-+#ifdef DEBUG
-+ debugfs_remove(admhc_debug_root);
-+ admhc_debug_root = NULL;
-+error_debug:
-+#endif
- return ret;
- }
- module_init(admhc_hcd_mod_init);
-@@ -823,6 +838,9 @@
- static void __exit admhc_hcd_mod_exit(void)
- {
- platform_driver_unregister(&PLATFORM_DRIVER);
-+#ifdef DEBUG
-+ debugfs_remove(admhc_debug_root);
-+#endif
- }
- module_exit(admhc_hcd_mod_exit);
-
---- a/drivers/usb/host/adm5120-dbg.c
-+++ b/drivers/usb/host/adm5120-dbg.c
-@@ -390,6 +390,42 @@
-
- #else
-
-+static int debug_async_open(struct inode *, struct file *);
-+static int debug_periodic_open(struct inode *, struct file *);
-+static int debug_registers_open(struct inode *, struct file *);
-+static int debug_async_open(struct inode *, struct file *);
-+static ssize_t debug_output(struct file*, char __user*, size_t, loff_t*);
-+static int debug_close(struct inode *, struct file *);
-+
-+static const struct file_operations debug_async_fops = {
-+ .owner = THIS_MODULE,
-+ .open = debug_async_open,
-+ .read = debug_output,
-+ .release = debug_close,
-+};
-+static const struct file_operations debug_periodic_fops = {
-+ .owner = THIS_MODULE,
-+ .open = debug_periodic_open,
-+ .read = debug_output,
-+ .release = debug_close,
-+};
-+static const struct file_operations debug_registers_fops = {
-+ .owner = THIS_MODULE,
-+ .open = debug_registers_open,
-+ .read = debug_output,
-+ .release = debug_close,
-+};
-+
-+static struct dentry *admhc_debug_root;
-+
-+struct debug_buffer {
-+ ssize_t (*fill_func)(struct debug_buffer *); /* fill method */
-+ struct device *dev;
-+ struct mutex mutex; /* protect filling of buffer */
-+ size_t count; /* number of characters filled into buffer */
-+ char *page;
-+};
-+
- static ssize_t
- show_list(struct admhcd *ahcd, char *buf, size_t count, struct ed *ed)
- {
-@@ -455,8 +491,7 @@
- return count - size;
- }
-
--static ssize_t
--show_async(struct device *dev, struct device_attribute *attr, char *buf)
-+static ssize_t fill_async_buffer(struct debug_buffer *buf)
- {
- struct usb_bus *bus;
- struct usb_hcd *hcd;
-@@ -464,24 +499,22 @@
- size_t temp;
- unsigned long flags;
-
-- bus = dev_get_drvdata(dev);
-+ bus = dev_get_drvdata(buf->dev);
- hcd = bus_to_hcd(bus);
- ahcd = hcd_to_admhcd(hcd);
-
- /* display control and bulk lists together, for simplicity */
- spin_lock_irqsave(&ahcd->lock, flags);
-- temp = show_list(ahcd, buf, PAGE_SIZE, ahcd->ed_head);
-+ temp = show_list(ahcd, buf->page, buf->count, ahcd->ed_head);
- spin_unlock_irqrestore(&ahcd->lock, flags);
-
- return temp;
- }
--static DEVICE_ATTR(async, S_IRUGO, show_async, NULL);
-
-
- #define DBG_SCHED_LIMIT 64
-
--static ssize_t
--show_periodic(struct device *dev, struct device_attribute *attr, char *buf)
-+static ssize_t fill_periodic_buffer(struct debug_buffer *buf)
- {
- struct usb_bus *bus;
- struct usb_hcd *hcd;
-@@ -496,10 +529,10 @@
- return 0;
- seen_count = 0;
-
-- bus = dev_get_drvdata(dev);
-+ bus = dev_get_drvdata(buf->dev);
- hcd = bus_to_hcd(bus);
- ahcd = hcd_to_admhcd(hcd);
-- next = buf;
-+ next = buf->page;
- size = PAGE_SIZE;
-
- temp = scnprintf(next, size, "size = %d\n", NUM_INTS);
-@@ -574,13 +607,11 @@
-
- return PAGE_SIZE - size;
- }
--static DEVICE_ATTR(periodic, S_IRUGO, show_periodic, NULL);
-
-
- #undef DBG_SCHED_LIMIT
-
--static ssize_t
--show_registers(struct device *dev, struct device_attribute *attr, char *buf)
-+static ssize_t fill_registers_buffer(struct debug_buffer *buf)
- {
- struct usb_bus *bus;
- struct usb_hcd *hcd;
-@@ -591,11 +622,11 @@
- char *next;
- u32 rdata;
-
-- bus = dev_get_drvdata(dev);
-+ bus = dev_get_drvdata(buf->dev);
- hcd = bus_to_hcd(bus);
- ahcd = hcd_to_admhcd(hcd);
- regs = ahcd->regs;
-- next = buf;
-+ next = buf->page;
- size = PAGE_SIZE;
-
- spin_lock_irqsave(&ahcd->lock, flags);
-@@ -656,27 +687,154 @@
- spin_unlock_irqrestore(&ahcd->lock, flags);
- return PAGE_SIZE - size;
- }
--static DEVICE_ATTR(registers, S_IRUGO, show_registers, NULL);
-
-
--static inline void create_debug_files (struct admhcd *ahcd)
-+static struct debug_buffer *alloc_buffer(struct device *dev,
-+ ssize_t (*fill_func)(struct debug_buffer *))
- {
-- struct device *dev = admhcd_to_hcd(ahcd)->self.dev;
-- int retval;
-+ struct debug_buffer *buf;
-
-- retval = device_create_file(dev, &dev_attr_async);
-- retval = device_create_file(dev, &dev_attr_periodic);
-- retval = device_create_file(dev, &dev_attr_registers);
-- admhc_dbg(ahcd, "created debug files\n");
-+ buf = kzalloc(sizeof(struct debug_buffer), GFP_KERNEL);
-+
-+ if (buf) {
-+ buf->dev = dev;
-+ buf->fill_func = fill_func;
-+ mutex_init(&buf->mutex);
-+ }
-+
-+ return buf;
-+}
-+
-+static int fill_buffer(struct debug_buffer *buf)
-+{
-+ int ret = 0;
-+
-+ if (!buf->page)
-+ buf->page = (char *)get_zeroed_page(GFP_KERNEL);
-+
-+ if (!buf->page) {
-+ ret = -ENOMEM;
-+ goto out;
-+ }
-+
-+ ret = buf->fill_func(buf);
-+
-+ if (ret >= 0) {
-+ buf->count = ret;
-+ ret = 0;
-+ }
-+
-+out:
-+ return ret;
-+}
-+
-+static ssize_t debug_output(struct file *file, char __user *user_buf,
-+ size_t len, loff_t *offset)
-+{
-+ struct debug_buffer *buf = file->private_data;
-+ int ret = 0;
-+
-+ mutex_lock(&buf->mutex);
-+ if (buf->count == 0) {
-+ ret = fill_buffer(buf);
-+ if (ret != 0) {
-+ mutex_unlock(&buf->mutex);
-+ goto out;
-+ }
-+ }
-+ mutex_unlock(&buf->mutex);
-+
-+ ret = simple_read_from_buffer(user_buf, len, offset,
-+ buf->page, buf->count);
-+
-+out:
-+ return ret;
-+}
-+
-+static int debug_close(struct inode *inode, struct file *file)
-+{
-+ struct debug_buffer *buf = file->private_data;
-+
-+ if (buf) {
-+ if (buf->page)
-+ free_page((unsigned long)buf->page);
-+ kfree(buf);
-+ }
-+
-+ return 0;
- }
-
--static inline void remove_debug_files (struct admhcd *ahcd)
-+static int debug_async_open(struct inode *inode, struct file *file)
- {
-- struct device *dev = admhcd_to_hcd(ahcd)->self.dev;
-+ file->private_data = alloc_buffer(inode->i_private, fill_async_buffer);
-+
-+ return file->private_data ? 0 : -ENOMEM;
-+}
-+
-+static int debug_periodic_open(struct inode *inode, struct file *file)
-+{
-+ file->private_data = alloc_buffer(inode->i_private,
-+ fill_periodic_buffer);
-+
-+ return file->private_data ? 0 : -ENOMEM;
-+}
-
-- device_remove_file(dev, &dev_attr_async);
-- device_remove_file(dev, &dev_attr_periodic);
-- device_remove_file(dev, &dev_attr_registers);
-+static int debug_registers_open(struct inode *inode, struct file *file)
-+{
-+ file->private_data = alloc_buffer(inode->i_private,
-+ fill_registers_buffer);
-+
-+ return file->private_data ? 0 : -ENOMEM;
-+}
-+
-+static inline void create_debug_files(struct admhcd *ahcd)
-+{
-+ struct usb_bus *bus = &admhcd_to_hcd(ahcd)->self;
-+ struct device *dev = bus->dev;
-+
-+ ahcd->debug_dir = debugfs_create_dir(bus->bus_name, admhc_debug_root);
-+ if (!ahcd->debug_dir)
-+ goto dir_error;
-+
-+ ahcd->debug_async = debugfs_create_file("async", S_IRUGO,
-+ ahcd->debug_dir, dev,
-+ &debug_async_fops);
-+ if (!ahcd->debug_async)
-+ goto async_error;
-+
-+ ahcd->debug_periodic = debugfs_create_file("periodic", S_IRUGO,
-+ ahcd->debug_dir, dev,
-+ &debug_periodic_fops);
-+ if (!ahcd->debug_periodic)
-+ goto periodic_error;
-+
-+ ahcd->debug_registers = debugfs_create_file("registers", S_IRUGO,
-+ ahcd->debug_dir, dev,
-+ &debug_registers_fops);
-+ if (!ahcd->debug_registers)
-+ goto registers_error;
-+
-+ admhc_dbg(ahcd, "created debug files\n");
-+ return;
-+
-+registers_error:
-+ debugfs_remove(ahcd->debug_periodic);
-+periodic_error:
-+ debugfs_remove(ahcd->debug_async);
-+async_error:
-+ debugfs_remove(ahcd->debug_dir);
-+dir_error:
-+ ahcd->debug_periodic = NULL;
-+ ahcd->debug_async = NULL;
-+ ahcd->debug_dir = NULL;
-+}
-+
-+static inline void remove_debug_files(struct admhcd *ahcd)
-+{
-+ debugfs_remove(ahcd->debug_registers);
-+ debugfs_remove(ahcd->debug_periodic);
-+ debugfs_remove(ahcd->debug_async);
-+ debugfs_remove(ahcd->debug_dir);
- }
-
- #endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-02 20:40:39 +0000