summaryrefslogtreecommitdiff
path: root/package/kernel/mac80211/patches/603-rt2x00-introduce-rt2x00eeprom.patch
blob: 1255d757256d3cf3d4870efbfe0f8348a3b53a80 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
--- a/.local-symbols
+++ b/.local-symbols
@@ -314,6 +314,7 @@ RT2X00_LIB_FIRMWARE=
 RT2X00_LIB_CRYPTO=
 RT2X00_LIB_LEDS=
 RT2X00_LIB_DEBUGFS=
+RT2X00_LIB_EEPROM=
 RT2X00_DEBUG=
 WL_MEDIATEK=
 MT7601U=
--- a/drivers/net/wireless/rt2x00/Kconfig
+++ b/drivers/net/wireless/rt2x00/Kconfig
@@ -69,6 +69,7 @@ config RT2800PCI
 	select RT2X00_LIB_MMIO
 	select RT2X00_LIB_PCI
 	select RT2X00_LIB_FIRMWARE
+	select RT2X00_LIB_EEPROM
 	select RT2X00_LIB_CRYPTO
 	depends on CRC_CCITT
 	depends on EEPROM_93CX6
@@ -215,6 +216,7 @@ config RT2800SOC
 	select RT2X00_LIB_MMIO
 	select RT2X00_LIB_CRYPTO
 	select RT2X00_LIB_FIRMWARE
+	select RT2X00_LIB_EEPROM
 	select RT2800_LIB
 	select RT2800_LIB_MMIO
 	---help---
@@ -265,6 +267,9 @@ config RT2X00_LIB_FIRMWARE
 config RT2X00_LIB_CRYPTO
 	bool
 
+config RT2X00_LIB_EEPROM
+	boolean
+
 config RT2X00_LIB_LEDS
 	bool
 	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-$(CPTCFG_RT2X00_LIB_DEBUGFS)	+
 rt2x00lib-$(CPTCFG_RT2X00_LIB_CRYPTO)	+= rt2x00crypto.o
 rt2x00lib-$(CPTCFG_RT2X00_LIB_FIRMWARE)	+= rt2x00firmware.o
 rt2x00lib-$(CPTCFG_RT2X00_LIB_LEDS)	+= rt2x00leds.o
+rt2x00lib-$(CPTCFG_RT2X00_LIB_EEPROM)	+= rt2x00eeprom.o
 
 obj-$(CPTCFG_RT2X00_LIB)		+= rt2x00lib.o
 obj-$(CPTCFG_RT2X00_LIB_MMIO)		+= rt2x00mmio.o
--- a/drivers/net/wireless/rt2x00/rt2800lib.h
+++ b/drivers/net/wireless/rt2x00/rt2800lib.h
@@ -46,6 +46,8 @@ struct rt2800_drv_data {
 	} shmem_lock;
 };
 
+#include "rt2800.h"
+
 struct rt2800_ops {
 	void (*register_read)(struct rt2x00_dev *rt2x00dev,
 			      const unsigned int offset, u32 *value);
@@ -179,6 +181,15 @@ static inline int rt2800_read_eeprom(str
 {
 	const struct rt2800_ops *rt2800ops = rt2x00dev->ops->drv;
 
+	if (rt2x00dev->eeprom_file) {
+		memcpy(rt2x00dev->eeprom, rt2x00dev->eeprom_file->data,
+		       EEPROM_SIZE);
+		return 0;
+	}
+
+	if (!rt2800ops->read_eeprom)
+		return -EINVAL;
+
 	return rt2800ops->read_eeprom(rt2x00dev);
 }
 
--- a/drivers/net/wireless/rt2x00/rt2800soc.c
+++ b/drivers/net/wireless/rt2x00/rt2800soc.c
@@ -102,19 +102,6 @@ static int rt2800soc_set_device_state(st
 	return retval;
 }
 
-static int rt2800soc_read_eeprom(struct rt2x00_dev *rt2x00dev)
-{
-	void __iomem *base_addr = ioremap(0x1F040000, EEPROM_SIZE);
-
-	if (!base_addr)
-		return -ENOMEM;
-
-	memcpy_fromio(rt2x00dev->eeprom, base_addr, EEPROM_SIZE);
-
-	iounmap(base_addr);
-	return 0;
-}
-
 /* Firmware functions */
 static char *rt2800soc_get_firmware_name(struct rt2x00_dev *rt2x00dev)
 {
@@ -178,7 +165,6 @@ static const struct rt2800_ops rt2800soc
 	.register_multiread	= rt2x00mmio_register_multiread,
 	.register_multiwrite	= rt2x00mmio_register_multiwrite,
 	.regbusy_read		= rt2x00mmio_regbusy_read,
-	.read_eeprom		= rt2800soc_read_eeprom,
 	.hwcrypt_disabled	= rt2800soc_hwcrypt_disabled,
 	.drv_write_firmware	= rt2800soc_write_firmware,
 	.drv_init_registers	= rt2800mmio_init_registers,
--- a/drivers/net/wireless/rt2x00/rt2x00.h
+++ b/drivers/net/wireless/rt2x00/rt2x00.h
@@ -697,6 +697,7 @@ enum rt2x00_capability_flags {
 	REQUIRE_HT_TX_DESC,
 	REQUIRE_PS_AUTOWAKE,
 	REQUIRE_DELAYED_RFKILL,
+	REQUIRE_EEPROM_FILE,
 
 	/*
 	 * Capabilities
@@ -966,6 +967,11 @@ 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/rt2x00dev.c
+++ b/drivers/net/wireless/rt2x00/rt2x00dev.c
@@ -1334,6 +1334,10 @@ int rt2x00lib_probe_dev(struct rt2x00_de
 	INIT_DELAYED_WORK(&rt2x00dev->autowakeup_work, rt2x00lib_autowakeup);
 	INIT_WORK(&rt2x00dev->sleep_work, rt2x00lib_sleep);
 
+	retval = rt2x00lib_load_eeprom_file(rt2x00dev);
+	if (retval)
+		goto exit;
+
 	/*
 	 * Let the driver probe the device to detect the capabilities.
 	 */
@@ -1474,6 +1478,11 @@ void rt2x00lib_remove_dev(struct rt2x00_
 	 * Free the driver data.
 	 */
 	kfree(rt2x00dev->drv_data);
+
+	/*
+	 * Free EEPROM image.
+	 */
+	rt2x00lib_free_eeprom_file(rt2x00dev);
 }
 EXPORT_SYMBOL_GPL(rt2x00lib_remove_dev);
 
--- /dev/null
+++ b/drivers/net/wireless/rt2x00/rt2x00eeprom.c
@@ -0,0 +1,111 @@
+/*
+	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 const char *
+rt2x00lib_get_eeprom_file_name(struct rt2x00_dev *rt2x00dev)
+{
+	struct rt2x00_platform_data *pdata = rt2x00dev->dev->platform_data;
+
+	if (pdata && pdata->eeprom_file_name)
+		return pdata->eeprom_file_name;
+
+	return NULL
+}
+
+static int rt2x00lib_request_eeprom_file(struct rt2x00_dev *rt2x00dev)
+{
+	const struct firmware *ee;
+	const char *ee_name;
+	int retval;
+
+	ee_name = rt2x00lib_get_eeprom_file_name(rt2x00dev);
+	if (!ee_name) {
+		rt2x00_err(rt2x00dev,
+			   "Invalid EEPROM filename.\n"
+			   "Please file bug report to %s.\n", DRV_PROJECT);
+		return -EINVAL;
+	}
+
+	rt2x00_info(rt2x00dev, "Loading EEPROM data from '%s'.\n", ee_name);
+
+	retval = request_firmware(&ee, ee_name, rt2x00dev->dev);
+	if (retval) {
+		rt2x00_err(rt2x00dev, "Failed to request EEPROM.\n");
+		return retval;
+	}
+
+	if (!ee || !ee->size || !ee->data) {
+		rt2x00_err(rt2x00dev, "Failed to read EEPROM file.\n");
+		retval = -ENOENT;
+		goto err_exit;
+	}
+
+	if (ee->size != rt2x00dev->ops->eeprom_size) {
+		rt2x00_err(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 (!rt2x00lib_get_eeprom_file_name(rt2x00dev))
+		return 0;
+
+	set_bit(REQUIRE_EEPROM_FILE, &rt2x00dev->cap_flags);
+
+	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/rt2x00lib.h
+++ b/drivers/net/wireless/rt2x00/rt2x00lib.h
@@ -320,6 +320,22 @@ static inline void rt2x00lib_free_firmwa
 #endif /* CPTCFG_RT2X00_LIB_FIRMWARE */
 
 /*
+ * EEPROM file handlers.
+ */
+#ifdef CPTCFG_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 /* CPTCFG_RT2X00_LIB_EEPROM */
+
+/*
  * Debugfs handlers.
  */
 #ifdef CPTCFG_RT2X00_LIB_DEBUGFS
--- a/drivers/net/wireless/rt2x00/rt2x00soc.c
+++ b/drivers/net/wireless/rt2x00/rt2x00soc.c
@@ -92,6 +92,7 @@ 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);