max80211: rt2x00: load the eeprom data from a file on Ralink SoCs

SVN-Revision: 27395

1 files changed, 274 insertions, 0 deletions

diff --git a/package/mac80211/patches/603-rt2x00-introduce-rt2x00eeprom.patch b/package/mac80211/patches/603-rt2x00-introduce-rt2x00eeprom.patch
new file mode 100644
index 0000000000..fc58744655
--- /dev/null
+++ b/package/mac80211/patches/603-rt2x00-introduce-rt2x00eeprom.patch
@@ -0,0 +1,274 @@
+--- /dev/null
++++ b/drivers/net/wireless/rt2x00/rt2x00eeprom.c
+@@ -0,0 +1,98 @@
++/*
++	Copyright (C) 2004 - 2009 Ivo van Doorn <IvDoorn@gmail.com>
++	Copyright (C) 2004 - 2009 Gertjan van Wingerde <gwingerde@gmail.com>
++	<http://rt2x00.serialmonkey.com>
++
++	This program is free software; you can redistribute it and/or modify
++	it under the terms of the GNU General Public License as published by
++	the Free Software Foundation; either version 2 of the License, or
++	(at your option) any later version.
++
++	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.
++
++	You should have received a copy of the GNU General Public License
++	along with this program; if not, write to the
++	Free Software Foundation, Inc.,
++	59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
++ */
++
++/*
++	Module: rt2x00lib
++	Abstract: rt2x00 eeprom file loading routines.
++ */
++
++#include <linux/kernel.h>
++#include <linux/module.h>
++
++#include "rt2x00.h"
++#include "rt2x00lib.h"
++
++static int rt2x00lib_request_eeprom_file(struct rt2x00_dev *rt2x00dev)
++{
++	const struct firmware *ee;
++	char *ee_name;
++	int retval;
++
++	ee_name = rt2x00dev->ops->lib->get_eeprom_file_name(rt2x00dev);
++	if (!ee_name) {
++		ERROR(rt2x00dev,
++		      "Invalid EEPROM filename.\n"
++		      "Please file bug report to %s.\n", DRV_PROJECT);
++		return -EINVAL;
++	}
++
++	INFO(rt2x00dev, "Loading EEPROM data from '%s'.\n", ee_name);
++
++	retval = request_firmware(&ee, ee_name, rt2x00dev->dev);
++	if (retval) {
++		ERROR(rt2x00dev, "Failed to request EEPROM.\n");
++		return retval;
++	}
++
++	if (!ee || !ee->size || !ee->data) {
++		ERROR(rt2x00dev, "Failed to read EEPROM file.\n");
++		retval = -ENOENT;
++		goto err_exit;
++	}
++
++	if (ee->size != rt2x00dev->ops->eeprom_size) {
++		ERROR(rt2x00dev,
++		      "EEPROM file size is invalid, it should be %d bytes\n",
++		      rt2x00dev->ops->eeprom_size);
++		retval = -EINVAL;
++		goto err_release_ee;
++	}
++
++	rt2x00dev->eeprom_file = ee;
++	return 0;
++
++err_release_ee:
++	release_firmware(ee);
++err_exit:
++	return retval;
++}
++
++int rt2x00lib_load_eeprom_file(struct rt2x00_dev *rt2x00dev)
++{
++	int retval;
++
++	if (!test_bit(REQUIRE_EEPROM_FILE, &rt2x00dev->cap_flags))
++		return 0;
++
++	if (!rt2x00dev->eeprom_file) {
++		retval = rt2x00lib_request_eeprom_file(rt2x00dev);
++		if (retval)
++			return retval;
++	}
++
++	return 0;
++}
++
++void rt2x00lib_free_eeprom_file(struct rt2x00_dev *rt2x00dev)
++{
++	release_firmware(rt2x00dev->eeprom_file);
++	rt2x00dev->eeprom_file = NULL;
++}
+--- a/drivers/net/wireless/rt2x00/rt2x00.h
++++ b/drivers/net/wireless/rt2x00/rt2x00.h
+@@ -538,6 +538,7 @@ struct rt2x00lib_ops {
+ 			       const u8 *data, const size_t len);
+ 	int (*load_firmware) (struct rt2x00_dev *rt2x00dev,
+ 			      const u8 *data, const size_t len);
++	char *(*get_eeprom_file_name) (struct rt2x00_dev *rt2x00dev);
+ 
+ 	/*
+ 	 * Device initialization/deinitialization handlers.
+@@ -684,6 +685,7 @@ enum rt2x00_capability_flags {
+ 	REQUIRE_SW_SEQNO,
+ 	REQUIRE_HT_TX_DESC,
+ 	REQUIRE_PS_AUTOWAKE,
++	REQUIRE_EEPROM_FILE,
+ 
+ 	/*
+ 	 * Capabilities
+@@ -939,6 +941,11 @@ struct rt2x00_dev {
+ 	const struct firmware *fw;
+ 
+ 	/*
++	 * EEPROM image.
++	 */
++	const struct firmware *eeprom_file;
++
++	/*
+ 	 * FIFO for storing tx status reports between isr and tasklet.
+ 	 */
+ 	DECLARE_KFIFO_PTR(txstatus_fifo, u32);
+--- a/drivers/net/wireless/rt2x00/rt2x00lib.h
++++ b/drivers/net/wireless/rt2x00/rt2x00lib.h
+@@ -309,6 +309,22 @@ static inline void rt2x00lib_free_firmwa
+ #endif /* CONFIG_RT2X00_LIB_FIRMWARE */
+ 
+ /*
++ * EEPROM file handlers.
++ */
++#ifdef CONFIG_RT2X00_LIB_EEPROM
++int rt2x00lib_load_eeprom_file(struct rt2x00_dev *rt2x00dev);
++void rt2x00lib_free_eeprom_file(struct rt2x00_dev *rt2x00dev);
++#else
++static inline int rt2x00lib_load_eeprom_file(struct rt2x00_dev *rt2x00dev)
++{
++	return 0;
++}
++static inline void rt2x00lib_free_eeprom_file(struct rt2x00_dev *rt2x00dev)
++{
++}
++#endif /* CONFIG_RT2X00_LIB_EEPROM_FILE */
++
++/*
+  * Debugfs handlers.
+  */
+ #ifdef CONFIG_RT2X00_LIB_DEBUGFS
+--- a/drivers/net/wireless/rt2x00/Kconfig
++++ b/drivers/net/wireless/rt2x00/Kconfig
+@@ -60,6 +60,7 @@ config RT2800PCI
+ 	select RT2X00_LIB_PCI if PCI
+ 	select RT2X00_LIB_SOC if RALINK_RT288X || RALINK_RT305X
+ 	select RT2X00_LIB_FIRMWARE
++	select RT2X00_LIB_EEPROM
+ 	select RT2X00_LIB_CRYPTO
+ 	select CRC_CCITT
+ 	select EEPROM_93CX6
+@@ -204,6 +205,9 @@ config RT2X00_LIB_FIRMWARE
+ config RT2X00_LIB_CRYPTO
+ 	boolean
+ 
++config RT2X00_LIB_EEPROM
++	boolean
++
+ config RT2X00_LIB_LEDS
+ 	boolean
+ 	default y if (RT2X00_LIB=y && LEDS_CLASS=y) || (RT2X00_LIB=m && LEDS_CLASS!=n)
+--- a/drivers/net/wireless/rt2x00/Makefile
++++ b/drivers/net/wireless/rt2x00/Makefile
+@@ -7,6 +7,7 @@ rt2x00lib-$(CONFIG_RT2X00_LIB_DEBUGFS)	+
+ rt2x00lib-$(CONFIG_RT2X00_LIB_CRYPTO)	+= rt2x00crypto.o
+ rt2x00lib-$(CONFIG_RT2X00_LIB_FIRMWARE)	+= rt2x00firmware.o
+ rt2x00lib-$(CONFIG_RT2X00_LIB_LEDS)	+= rt2x00leds.o
++rt2x00lib-$(CONFIG_RT2X00_LIB_EEPROM)	+= rt2x00eeprom.o
+ 
+ obj-$(CONFIG_RT2X00_LIB)		+= rt2x00lib.o
+ obj-$(CONFIG_RT2X00_LIB_PCI)		+= rt2x00pci.o
+--- a/drivers/net/wireless/rt2x00/rt2800pci.c
++++ b/drivers/net/wireless/rt2x00/rt2800pci.c
+@@ -84,20 +84,10 @@ static void rt2800pci_mcu_status(struct 
+ 	rt2x00pci_register_write(rt2x00dev, H2M_MAILBOX_CID, ~0);
+ }
+ 
+-#if defined(CONFIG_RALINK_RT288X) || defined(CONFIG_RALINK_RT305X)
+ static void rt2800pci_read_eeprom_soc(struct rt2x00_dev *rt2x00dev)
+ {
+-	void __iomem *base_addr = ioremap(0x1F040000, EEPROM_SIZE);
+-
+-	memcpy_fromio(rt2x00dev->eeprom, base_addr, EEPROM_SIZE);
+-
+-	iounmap(base_addr);
++	memcpy(rt2x00dev->eeprom, rt2x00dev->eeprom_file->data, EEPROM_SIZE);
+ }
+-#else
+-static inline void rt2800pci_read_eeprom_soc(struct rt2x00_dev *rt2x00dev)
+-{
+-}
+-#endif /* CONFIG_RALINK_RT288X || CONFIG_RALINK_RT305X */
+ 
+ #ifdef CONFIG_PCI
+ static void rt2800pci_eepromregister_read(struct eeprom_93cx6 *eeprom)
+@@ -315,6 +305,20 @@ static int rt2800pci_write_firmware(stru
+ }
+ 
+ /*
++ * EEPROM file functions.
++ */
++static char *rt2800pci_get_eeprom_file_name(struct rt2x00_dev *rt2x00dev)
++{
++	struct rt2x00_platform_data *pdata;
++
++	pdata = rt2x00dev->dev->platform_data;
++	if (pdata)
++		return pdata->eeprom_file_name;
++
++	return NULL;
++}
++
++/*
+  * Initialization functions.
+  */
+ static bool rt2800pci_get_entry_state(struct queue_entry *entry)
+@@ -1057,6 +1061,7 @@ static const struct rt2x00lib_ops rt2800
+ 	.get_firmware_name	= rt2800pci_get_firmware_name,
+ 	.check_firmware		= rt2800_check_firmware,
+ 	.load_firmware		= rt2800_load_firmware,
++	.get_eeprom_file_name   = rt2800pci_get_eeprom_file_name,
+ 	.initialize		= rt2x00pci_initialize,
+ 	.uninitialize		= rt2x00pci_uninitialize,
+ 	.get_entry_state	= rt2800pci_get_entry_state,
+--- a/drivers/net/wireless/rt2x00/rt2x00dev.c
++++ b/drivers/net/wireless/rt2x00/rt2x00dev.c
+@@ -1122,6 +1122,10 @@ int rt2x00lib_probe_dev(struct rt2x00_de
+ 	INIT_WORK(&rt2x00dev->intf_work, rt2x00lib_intf_scheduled);
+ 	INIT_DELAYED_WORK(&rt2x00dev->autowakeup_work, rt2x00lib_autowakeup);
+ 
++	retval = rt2x00lib_load_eeprom_file(rt2x00dev);
++	if (retval)
++		goto exit;
++
+ 	/*
+ 	 * Let the driver probe the device to detect the capabilities.
+ 	 */
+@@ -1223,6 +1227,11 @@ void rt2x00lib_remove_dev(struct rt2x00_
+ 	 * Free queue structures.
+ 	 */
+ 	rt2x00queue_free(rt2x00dev);
++
++	/*
++	 * Free EEPROM image.
++	 */
++	rt2x00lib_free_eeprom_file(rt2x00dev);
+ }
+ EXPORT_SYMBOL_GPL(rt2x00lib_remove_dev);
+ 
+--- a/drivers/net/wireless/rt2x00/rt2x00soc.c
++++ b/drivers/net/wireless/rt2x00/rt2x00soc.c
+@@ -94,6 +94,7 @@ int rt2x00soc_probe(struct platform_devi
+ 	rt2x00dev->hw = hw;
+ 	rt2x00dev->irq = platform_get_irq(pdev, 0);
+ 	rt2x00dev->name = pdev->dev.driver->name;
++	set_bit(REQUIRE_EEPROM_FILE, &rt2x00dev->cap_flags);
+ 
+ 	rt2x00_set_chip_intf(rt2x00dev, RT2X00_CHIP_INTF_SOC);
+