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Ivo van Doorn95ea3622007-09-25 17:57:13 -07001/*
Ivo van Doorn811aa9c2008-02-03 15:42:53 +01002 Copyright (C) 2004 - 2008 rt2x00 SourceForge Project
Ivo van Doorn95ea3622007-09-25 17:57:13 -07003 <http://rt2x00.serialmonkey.com>
4
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
9
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the
17 Free Software Foundation, Inc.,
18 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19 */
20
21/*
22 Module: rt2500usb
23 Abstract: rt2500usb device specific routines.
24 Supported chipsets: RT2570.
25 */
26
Ivo van Doorn95ea3622007-09-25 17:57:13 -070027#include <linux/delay.h>
28#include <linux/etherdevice.h>
29#include <linux/init.h>
30#include <linux/kernel.h>
31#include <linux/module.h>
32#include <linux/usb.h>
33
34#include "rt2x00.h"
35#include "rt2x00usb.h"
36#include "rt2500usb.h"
37
38/*
39 * Register access.
40 * All access to the CSR registers will go through the methods
41 * rt2500usb_register_read and rt2500usb_register_write.
42 * BBP and RF register require indirect register access,
43 * and use the CSR registers BBPCSR and RFCSR to achieve this.
44 * These indirect registers work with busy bits,
45 * and we will try maximal REGISTER_BUSY_COUNT times to access
46 * the register while taking a REGISTER_BUSY_DELAY us delay
47 * between each attampt. When the busy bit is still set at that time,
48 * the access attempt is considered to have failed,
49 * and we will print an error.
Adam Baker3d823462007-10-27 13:43:29 +020050 * If the usb_cache_mutex is already held then the _lock variants must
51 * be used instead.
Ivo van Doorn95ea3622007-09-25 17:57:13 -070052 */
Adam Baker0e14f6d2007-10-27 13:41:25 +020053static inline void rt2500usb_register_read(struct rt2x00_dev *rt2x00dev,
Ivo van Doorn95ea3622007-09-25 17:57:13 -070054 const unsigned int offset,
55 u16 *value)
56{
57 __le16 reg;
58 rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_READ,
59 USB_VENDOR_REQUEST_IN, offset,
60 &reg, sizeof(u16), REGISTER_TIMEOUT);
61 *value = le16_to_cpu(reg);
62}
63
Adam Baker3d823462007-10-27 13:43:29 +020064static inline void rt2500usb_register_read_lock(struct rt2x00_dev *rt2x00dev,
65 const unsigned int offset,
66 u16 *value)
67{
68 __le16 reg;
69 rt2x00usb_vendor_req_buff_lock(rt2x00dev, USB_MULTI_READ,
70 USB_VENDOR_REQUEST_IN, offset,
71 &reg, sizeof(u16), REGISTER_TIMEOUT);
72 *value = le16_to_cpu(reg);
73}
74
Adam Baker0e14f6d2007-10-27 13:41:25 +020075static inline void rt2500usb_register_multiread(struct rt2x00_dev *rt2x00dev,
Ivo van Doorn95ea3622007-09-25 17:57:13 -070076 const unsigned int offset,
77 void *value, const u16 length)
78{
79 int timeout = REGISTER_TIMEOUT * (length / sizeof(u16));
80 rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_READ,
81 USB_VENDOR_REQUEST_IN, offset,
82 value, length, timeout);
83}
84
Adam Baker0e14f6d2007-10-27 13:41:25 +020085static inline void rt2500usb_register_write(struct rt2x00_dev *rt2x00dev,
Ivo van Doorn95ea3622007-09-25 17:57:13 -070086 const unsigned int offset,
87 u16 value)
88{
89 __le16 reg = cpu_to_le16(value);
90 rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_WRITE,
91 USB_VENDOR_REQUEST_OUT, offset,
92 &reg, sizeof(u16), REGISTER_TIMEOUT);
93}
94
Adam Baker3d823462007-10-27 13:43:29 +020095static inline void rt2500usb_register_write_lock(struct rt2x00_dev *rt2x00dev,
96 const unsigned int offset,
97 u16 value)
98{
99 __le16 reg = cpu_to_le16(value);
100 rt2x00usb_vendor_req_buff_lock(rt2x00dev, USB_MULTI_WRITE,
101 USB_VENDOR_REQUEST_OUT, offset,
102 &reg, sizeof(u16), REGISTER_TIMEOUT);
103}
104
Adam Baker0e14f6d2007-10-27 13:41:25 +0200105static inline void rt2500usb_register_multiwrite(struct rt2x00_dev *rt2x00dev,
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700106 const unsigned int offset,
107 void *value, const u16 length)
108{
109 int timeout = REGISTER_TIMEOUT * (length / sizeof(u16));
110 rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_WRITE,
111 USB_VENDOR_REQUEST_OUT, offset,
112 value, length, timeout);
113}
114
Adam Baker0e14f6d2007-10-27 13:41:25 +0200115static u16 rt2500usb_bbp_check(struct rt2x00_dev *rt2x00dev)
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700116{
117 u16 reg;
118 unsigned int i;
119
120 for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
Adam Baker3d823462007-10-27 13:43:29 +0200121 rt2500usb_register_read_lock(rt2x00dev, PHY_CSR8, &reg);
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700122 if (!rt2x00_get_field16(reg, PHY_CSR8_BUSY))
123 break;
124 udelay(REGISTER_BUSY_DELAY);
125 }
126
127 return reg;
128}
129
Adam Baker0e14f6d2007-10-27 13:41:25 +0200130static void rt2500usb_bbp_write(struct rt2x00_dev *rt2x00dev,
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700131 const unsigned int word, const u8 value)
132{
133 u16 reg;
134
Adam Baker3d823462007-10-27 13:43:29 +0200135 mutex_lock(&rt2x00dev->usb_cache_mutex);
136
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700137 /*
138 * Wait until the BBP becomes ready.
139 */
140 reg = rt2500usb_bbp_check(rt2x00dev);
141 if (rt2x00_get_field16(reg, PHY_CSR8_BUSY)) {
142 ERROR(rt2x00dev, "PHY_CSR8 register busy. Write failed.\n");
Adam Baker3d823462007-10-27 13:43:29 +0200143 mutex_unlock(&rt2x00dev->usb_cache_mutex);
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700144 return;
145 }
146
147 /*
148 * Write the data into the BBP.
149 */
150 reg = 0;
151 rt2x00_set_field16(&reg, PHY_CSR7_DATA, value);
152 rt2x00_set_field16(&reg, PHY_CSR7_REG_ID, word);
153 rt2x00_set_field16(&reg, PHY_CSR7_READ_CONTROL, 0);
154
Adam Baker3d823462007-10-27 13:43:29 +0200155 rt2500usb_register_write_lock(rt2x00dev, PHY_CSR7, reg);
156
157 mutex_unlock(&rt2x00dev->usb_cache_mutex);
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700158}
159
Adam Baker0e14f6d2007-10-27 13:41:25 +0200160static void rt2500usb_bbp_read(struct rt2x00_dev *rt2x00dev,
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700161 const unsigned int word, u8 *value)
162{
163 u16 reg;
164
Adam Baker3d823462007-10-27 13:43:29 +0200165 mutex_lock(&rt2x00dev->usb_cache_mutex);
166
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700167 /*
168 * Wait until the BBP becomes ready.
169 */
170 reg = rt2500usb_bbp_check(rt2x00dev);
171 if (rt2x00_get_field16(reg, PHY_CSR8_BUSY)) {
172 ERROR(rt2x00dev, "PHY_CSR8 register busy. Read failed.\n");
173 return;
174 }
175
176 /*
177 * Write the request into the BBP.
178 */
179 reg = 0;
180 rt2x00_set_field16(&reg, PHY_CSR7_REG_ID, word);
181 rt2x00_set_field16(&reg, PHY_CSR7_READ_CONTROL, 1);
182
Adam Baker3d823462007-10-27 13:43:29 +0200183 rt2500usb_register_write_lock(rt2x00dev, PHY_CSR7, reg);
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700184
185 /*
186 * Wait until the BBP becomes ready.
187 */
188 reg = rt2500usb_bbp_check(rt2x00dev);
189 if (rt2x00_get_field16(reg, PHY_CSR8_BUSY)) {
190 ERROR(rt2x00dev, "PHY_CSR8 register busy. Read failed.\n");
191 *value = 0xff;
Adam Baker3d823462007-10-27 13:43:29 +0200192 mutex_unlock(&rt2x00dev->usb_cache_mutex);
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700193 return;
194 }
195
Adam Baker3d823462007-10-27 13:43:29 +0200196 rt2500usb_register_read_lock(rt2x00dev, PHY_CSR7, &reg);
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700197 *value = rt2x00_get_field16(reg, PHY_CSR7_DATA);
Adam Baker3d823462007-10-27 13:43:29 +0200198
199 mutex_unlock(&rt2x00dev->usb_cache_mutex);
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700200}
201
Adam Baker0e14f6d2007-10-27 13:41:25 +0200202static void rt2500usb_rf_write(struct rt2x00_dev *rt2x00dev,
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700203 const unsigned int word, const u32 value)
204{
205 u16 reg;
206 unsigned int i;
207
208 if (!word)
209 return;
210
Adam Baker3d823462007-10-27 13:43:29 +0200211 mutex_lock(&rt2x00dev->usb_cache_mutex);
212
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700213 for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
Adam Baker3d823462007-10-27 13:43:29 +0200214 rt2500usb_register_read_lock(rt2x00dev, PHY_CSR10, &reg);
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700215 if (!rt2x00_get_field16(reg, PHY_CSR10_RF_BUSY))
216 goto rf_write;
217 udelay(REGISTER_BUSY_DELAY);
218 }
219
Adam Baker3d823462007-10-27 13:43:29 +0200220 mutex_unlock(&rt2x00dev->usb_cache_mutex);
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700221 ERROR(rt2x00dev, "PHY_CSR10 register busy. Write failed.\n");
222 return;
223
224rf_write:
225 reg = 0;
226 rt2x00_set_field16(&reg, PHY_CSR9_RF_VALUE, value);
Adam Baker3d823462007-10-27 13:43:29 +0200227 rt2500usb_register_write_lock(rt2x00dev, PHY_CSR9, reg);
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700228
229 reg = 0;
230 rt2x00_set_field16(&reg, PHY_CSR10_RF_VALUE, value >> 16);
231 rt2x00_set_field16(&reg, PHY_CSR10_RF_NUMBER_OF_BITS, 20);
232 rt2x00_set_field16(&reg, PHY_CSR10_RF_IF_SELECT, 0);
233 rt2x00_set_field16(&reg, PHY_CSR10_RF_BUSY, 1);
234
Adam Baker3d823462007-10-27 13:43:29 +0200235 rt2500usb_register_write_lock(rt2x00dev, PHY_CSR10, reg);
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700236 rt2x00_rf_write(rt2x00dev, word, value);
Adam Baker3d823462007-10-27 13:43:29 +0200237
238 mutex_unlock(&rt2x00dev->usb_cache_mutex);
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700239}
240
241#ifdef CONFIG_RT2X00_LIB_DEBUGFS
242#define CSR_OFFSET(__word) ( CSR_REG_BASE + ((__word) * sizeof(u16)) )
243
Adam Baker0e14f6d2007-10-27 13:41:25 +0200244static void rt2500usb_read_csr(struct rt2x00_dev *rt2x00dev,
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700245 const unsigned int word, u32 *data)
246{
247 rt2500usb_register_read(rt2x00dev, CSR_OFFSET(word), (u16 *) data);
248}
249
Adam Baker0e14f6d2007-10-27 13:41:25 +0200250static void rt2500usb_write_csr(struct rt2x00_dev *rt2x00dev,
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700251 const unsigned int word, u32 data)
252{
253 rt2500usb_register_write(rt2x00dev, CSR_OFFSET(word), data);
254}
255
256static const struct rt2x00debug rt2500usb_rt2x00debug = {
257 .owner = THIS_MODULE,
258 .csr = {
259 .read = rt2500usb_read_csr,
260 .write = rt2500usb_write_csr,
261 .word_size = sizeof(u16),
262 .word_count = CSR_REG_SIZE / sizeof(u16),
263 },
264 .eeprom = {
265 .read = rt2x00_eeprom_read,
266 .write = rt2x00_eeprom_write,
267 .word_size = sizeof(u16),
268 .word_count = EEPROM_SIZE / sizeof(u16),
269 },
270 .bbp = {
271 .read = rt2500usb_bbp_read,
272 .write = rt2500usb_bbp_write,
273 .word_size = sizeof(u8),
274 .word_count = BBP_SIZE / sizeof(u8),
275 },
276 .rf = {
277 .read = rt2x00_rf_read,
278 .write = rt2500usb_rf_write,
279 .word_size = sizeof(u32),
280 .word_count = RF_SIZE / sizeof(u32),
281 },
282};
283#endif /* CONFIG_RT2X00_LIB_DEBUGFS */
284
Ivo van Doorna9450b72008-02-03 15:53:40 +0100285#ifdef CONFIG_RT2500USB_LEDS
286static void rt2500usb_led_brightness(struct led_classdev *led_cdev,
287 enum led_brightness brightness)
288{
289 struct rt2x00_led *led =
290 container_of(led_cdev, struct rt2x00_led, led_dev);
291 unsigned int enabled = brightness != LED_OFF;
292 unsigned int activity =
293 led->rt2x00dev->led_flags & LED_SUPPORT_ACTIVITY;
294 u16 reg;
295
296 rt2500usb_register_read(led->rt2x00dev, MAC_CSR20, &reg);
297
298 if (led->type == LED_TYPE_RADIO || led->type == LED_TYPE_ASSOC) {
299 rt2x00_set_field16(&reg, MAC_CSR20_LINK, enabled);
300 rt2x00_set_field16(&reg, MAC_CSR20_ACTIVITY,
301 enabled && activity);
302 }
303
304 rt2500usb_register_write(led->rt2x00dev, MAC_CSR20, reg);
305}
306#else
307#define rt2500usb_led_brightness NULL
308#endif /* CONFIG_RT2500USB_LEDS */
309
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700310/*
311 * Configuration handlers.
312 */
Ivo van Doorn6bb40dd2008-02-03 15:49:59 +0100313static void rt2500usb_config_intf(struct rt2x00_dev *rt2x00dev,
314 struct rt2x00_intf *intf,
315 struct rt2x00intf_conf *conf,
316 const unsigned int flags)
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700317{
Ivo van Doorn6bb40dd2008-02-03 15:49:59 +0100318 unsigned int bcn_preload;
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700319 u16 reg;
320
Ivo van Doorn6bb40dd2008-02-03 15:49:59 +0100321 if (flags & CONFIG_UPDATE_TYPE) {
322 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, 0);
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700323
Ivo van Doorn6bb40dd2008-02-03 15:49:59 +0100324 /*
325 * Enable beacon config
326 */
327 bcn_preload = PREAMBLE + get_duration(IEEE80211_HEADER, 20);
328 rt2500usb_register_read(rt2x00dev, TXRX_CSR20, &reg);
329 rt2x00_set_field16(&reg, TXRX_CSR20_OFFSET, bcn_preload >> 6);
330 rt2x00_set_field16(&reg, TXRX_CSR20_BCN_EXPECT_WINDOW,
331 2 * (conf->type != IEEE80211_IF_TYPE_STA));
332 rt2500usb_register_write(rt2x00dev, TXRX_CSR20, reg);
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700333
Ivo van Doorn6bb40dd2008-02-03 15:49:59 +0100334 /*
335 * Enable synchronisation.
336 */
337 rt2500usb_register_read(rt2x00dev, TXRX_CSR18, &reg);
338 rt2x00_set_field16(&reg, TXRX_CSR18_OFFSET, 0);
339 rt2500usb_register_write(rt2x00dev, TXRX_CSR18, reg);
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700340
Ivo van Doorn6bb40dd2008-02-03 15:49:59 +0100341 rt2500usb_register_read(rt2x00dev, TXRX_CSR19, &reg);
342 rt2x00_set_field16(&reg, TXRX_CSR19_TSF_COUNT, 1);
343 rt2x00_set_field16(&reg, TXRX_CSR19_TBCN,
344 (conf->sync == TSF_SYNC_BEACON));
345 rt2x00_set_field16(&reg, TXRX_CSR19_BEACON_GEN, 0);
346 rt2x00_set_field16(&reg, TXRX_CSR19_TSF_SYNC, conf->sync);
347 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
Ivo van Doorn5c58ee52007-10-06 13:34:52 +0200348 }
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700349
Ivo van Doorn6bb40dd2008-02-03 15:49:59 +0100350 if (flags & CONFIG_UPDATE_MAC)
351 rt2500usb_register_multiwrite(rt2x00dev, MAC_CSR2, conf->mac,
352 (3 * sizeof(__le16)));
353
354 if (flags & CONFIG_UPDATE_BSSID)
355 rt2500usb_register_multiwrite(rt2x00dev, MAC_CSR5, conf->bssid,
356 (3 * sizeof(__le16)));
357}
358
359static int rt2500usb_config_preamble(struct rt2x00_dev *rt2x00dev,
360 const int short_preamble,
361 const int ack_timeout,
362 const int ack_consume_time)
363{
364 u16 reg;
365
366 /*
367 * When in atomic context, we should let rt2x00lib
368 * try this configuration again later.
369 */
370 if (in_atomic())
371 return -EAGAIN;
372
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700373 rt2500usb_register_read(rt2x00dev, TXRX_CSR1, &reg);
Ivo van Doorn5c58ee52007-10-06 13:34:52 +0200374 rt2x00_set_field16(&reg, TXRX_CSR1_ACK_TIMEOUT, ack_timeout);
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700375 rt2500usb_register_write(rt2x00dev, TXRX_CSR1, reg);
376
377 rt2500usb_register_read(rt2x00dev, TXRX_CSR10, &reg);
Ivo van Doorn4f5af6e2007-10-06 14:16:30 +0200378 rt2x00_set_field16(&reg, TXRX_CSR10_AUTORESPOND_PREAMBLE,
Ivo van Doorn5c58ee52007-10-06 13:34:52 +0200379 !!short_preamble);
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700380 rt2500usb_register_write(rt2x00dev, TXRX_CSR10, reg);
Ivo van Doorn6bb40dd2008-02-03 15:49:59 +0100381
382 return 0;
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700383}
384
385static void rt2500usb_config_phymode(struct rt2x00_dev *rt2x00dev,
Ivo van Doorn5c58ee52007-10-06 13:34:52 +0200386 const int basic_rate_mask)
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700387{
Ivo van Doorn5c58ee52007-10-06 13:34:52 +0200388 rt2500usb_register_write(rt2x00dev, TXRX_CSR11, basic_rate_mask);
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700389}
390
391static void rt2500usb_config_channel(struct rt2x00_dev *rt2x00dev,
Ivo van Doorn5c58ee52007-10-06 13:34:52 +0200392 struct rf_channel *rf, const int txpower)
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700393{
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700394 /*
395 * Set TXpower.
396 */
Ivo van Doorn5c58ee52007-10-06 13:34:52 +0200397 rt2x00_set_field32(&rf->rf3, RF3_TXPOWER, TXPOWER_TO_DEV(txpower));
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700398
399 /*
400 * For RT2525E we should first set the channel to half band higher.
401 */
402 if (rt2x00_rf(&rt2x00dev->chip, RF2525E)) {
403 static const u32 vals[] = {
404 0x000008aa, 0x000008ae, 0x000008ae, 0x000008b2,
405 0x000008b2, 0x000008b6, 0x000008b6, 0x000008ba,
406 0x000008ba, 0x000008be, 0x000008b7, 0x00000902,
407 0x00000902, 0x00000906
408 };
409
Ivo van Doorn5c58ee52007-10-06 13:34:52 +0200410 rt2500usb_rf_write(rt2x00dev, 2, vals[rf->channel - 1]);
411 if (rf->rf4)
412 rt2500usb_rf_write(rt2x00dev, 4, rf->rf4);
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700413 }
414
Ivo van Doorn5c58ee52007-10-06 13:34:52 +0200415 rt2500usb_rf_write(rt2x00dev, 1, rf->rf1);
416 rt2500usb_rf_write(rt2x00dev, 2, rf->rf2);
417 rt2500usb_rf_write(rt2x00dev, 3, rf->rf3);
418 if (rf->rf4)
419 rt2500usb_rf_write(rt2x00dev, 4, rf->rf4);
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700420}
421
422static void rt2500usb_config_txpower(struct rt2x00_dev *rt2x00dev,
423 const int txpower)
424{
425 u32 rf3;
426
427 rt2x00_rf_read(rt2x00dev, 3, &rf3);
428 rt2x00_set_field32(&rf3, RF3_TXPOWER, TXPOWER_TO_DEV(txpower));
429 rt2500usb_rf_write(rt2x00dev, 3, rf3);
430}
431
432static void rt2500usb_config_antenna(struct rt2x00_dev *rt2x00dev,
Ivo van Doornaddc81b2007-10-13 16:26:23 +0200433 struct antenna_setup *ant)
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700434{
435 u8 r2;
436 u8 r14;
437 u16 csr5;
438 u16 csr6;
439
440 rt2500usb_bbp_read(rt2x00dev, 2, &r2);
441 rt2500usb_bbp_read(rt2x00dev, 14, &r14);
442 rt2500usb_register_read(rt2x00dev, PHY_CSR5, &csr5);
443 rt2500usb_register_read(rt2x00dev, PHY_CSR6, &csr6);
444
445 /*
446 * Configure the TX antenna.
447 */
Ivo van Doornaddc81b2007-10-13 16:26:23 +0200448 switch (ant->tx) {
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700449 case ANTENNA_HW_DIVERSITY:
450 rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 1);
451 rt2x00_set_field16(&csr5, PHY_CSR5_CCK, 1);
452 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM, 1);
453 break;
454 case ANTENNA_A:
455 rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 0);
456 rt2x00_set_field16(&csr5, PHY_CSR5_CCK, 0);
457 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM, 0);
458 break;
Ivo van Doorn39e75852007-10-13 16:26:27 +0200459 case ANTENNA_SW_DIVERSITY:
460 /*
461 * NOTE: We should never come here because rt2x00lib is
462 * supposed to catch this and send us the correct antenna
463 * explicitely. However we are nog going to bug about this.
464 * Instead, just default to antenna B.
465 */
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700466 case ANTENNA_B:
467 rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 2);
468 rt2x00_set_field16(&csr5, PHY_CSR5_CCK, 2);
469 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM, 2);
470 break;
471 }
472
473 /*
474 * Configure the RX antenna.
475 */
Ivo van Doornaddc81b2007-10-13 16:26:23 +0200476 switch (ant->rx) {
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700477 case ANTENNA_HW_DIVERSITY:
478 rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 1);
479 break;
480 case ANTENNA_A:
481 rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 0);
482 break;
Ivo van Doorn39e75852007-10-13 16:26:27 +0200483 case ANTENNA_SW_DIVERSITY:
484 /*
485 * NOTE: We should never come here because rt2x00lib is
486 * supposed to catch this and send us the correct antenna
487 * explicitely. However we are nog going to bug about this.
488 * Instead, just default to antenna B.
489 */
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700490 case ANTENNA_B:
491 rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 2);
492 break;
493 }
494
495 /*
496 * RT2525E and RT5222 need to flip TX I/Q
497 */
498 if (rt2x00_rf(&rt2x00dev->chip, RF2525E) ||
499 rt2x00_rf(&rt2x00dev->chip, RF5222)) {
500 rt2x00_set_field8(&r2, BBP_R2_TX_IQ_FLIP, 1);
501 rt2x00_set_field16(&csr5, PHY_CSR5_CCK_FLIP, 1);
502 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM_FLIP, 1);
503
504 /*
505 * RT2525E does not need RX I/Q Flip.
506 */
507 if (rt2x00_rf(&rt2x00dev->chip, RF2525E))
508 rt2x00_set_field8(&r14, BBP_R14_RX_IQ_FLIP, 0);
509 } else {
510 rt2x00_set_field16(&csr5, PHY_CSR5_CCK_FLIP, 0);
511 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM_FLIP, 0);
512 }
513
514 rt2500usb_bbp_write(rt2x00dev, 2, r2);
515 rt2500usb_bbp_write(rt2x00dev, 14, r14);
516 rt2500usb_register_write(rt2x00dev, PHY_CSR5, csr5);
517 rt2500usb_register_write(rt2x00dev, PHY_CSR6, csr6);
518}
519
520static void rt2500usb_config_duration(struct rt2x00_dev *rt2x00dev,
Ivo van Doorn5c58ee52007-10-06 13:34:52 +0200521 struct rt2x00lib_conf *libconf)
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700522{
523 u16 reg;
524
Ivo van Doorn5c58ee52007-10-06 13:34:52 +0200525 rt2500usb_register_write(rt2x00dev, MAC_CSR10, libconf->slot_time);
Ivo van Doornf5507ce2008-02-03 15:51:13 +0100526 rt2500usb_register_write(rt2x00dev, MAC_CSR11, libconf->sifs);
527 rt2500usb_register_write(rt2x00dev, MAC_CSR12, libconf->eifs);
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700528
529 rt2500usb_register_read(rt2x00dev, TXRX_CSR18, &reg);
Ivo van Doorn5c58ee52007-10-06 13:34:52 +0200530 rt2x00_set_field16(&reg, TXRX_CSR18_INTERVAL,
531 libconf->conf->beacon_int * 4);
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700532 rt2500usb_register_write(rt2x00dev, TXRX_CSR18, reg);
533}
534
535static void rt2500usb_config(struct rt2x00_dev *rt2x00dev,
Ivo van Doorn6bb40dd2008-02-03 15:49:59 +0100536 struct rt2x00lib_conf *libconf,
537 const unsigned int flags)
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700538{
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700539 if (flags & CONFIG_UPDATE_PHYMODE)
Ivo van Doornf5507ce2008-02-03 15:51:13 +0100540 rt2500usb_config_phymode(rt2x00dev, libconf->basic_rates);
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700541 if (flags & CONFIG_UPDATE_CHANNEL)
Ivo van Doorn5c58ee52007-10-06 13:34:52 +0200542 rt2500usb_config_channel(rt2x00dev, &libconf->rf,
543 libconf->conf->power_level);
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700544 if ((flags & CONFIG_UPDATE_TXPOWER) && !(flags & CONFIG_UPDATE_CHANNEL))
Ivo van Doorn5c58ee52007-10-06 13:34:52 +0200545 rt2500usb_config_txpower(rt2x00dev,
546 libconf->conf->power_level);
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700547 if (flags & CONFIG_UPDATE_ANTENNA)
Ivo van Doornaddc81b2007-10-13 16:26:23 +0200548 rt2500usb_config_antenna(rt2x00dev, &libconf->ant);
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700549 if (flags & (CONFIG_UPDATE_SLOT_TIME | CONFIG_UPDATE_BEACON_INT))
Ivo van Doorn5c58ee52007-10-06 13:34:52 +0200550 rt2500usb_config_duration(rt2x00dev, libconf);
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700551}
552
553/*
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700554 * Link tuning
555 */
Ivo van Doornebcf26d2007-10-13 16:26:12 +0200556static void rt2500usb_link_stats(struct rt2x00_dev *rt2x00dev,
557 struct link_qual *qual)
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700558{
559 u16 reg;
560
561 /*
562 * Update FCS error count from register.
563 */
564 rt2500usb_register_read(rt2x00dev, STA_CSR0, &reg);
Ivo van Doornebcf26d2007-10-13 16:26:12 +0200565 qual->rx_failed = rt2x00_get_field16(reg, STA_CSR0_FCS_ERROR);
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700566
567 /*
568 * Update False CCA count from register.
569 */
570 rt2500usb_register_read(rt2x00dev, STA_CSR3, &reg);
Ivo van Doornebcf26d2007-10-13 16:26:12 +0200571 qual->false_cca = rt2x00_get_field16(reg, STA_CSR3_FALSE_CCA_ERROR);
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700572}
573
574static void rt2500usb_reset_tuner(struct rt2x00_dev *rt2x00dev)
575{
576 u16 eeprom;
577 u16 value;
578
579 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R24, &eeprom);
580 value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_R24_LOW);
581 rt2500usb_bbp_write(rt2x00dev, 24, value);
582
583 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R25, &eeprom);
584 value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_R25_LOW);
585 rt2500usb_bbp_write(rt2x00dev, 25, value);
586
587 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R61, &eeprom);
588 value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_R61_LOW);
589 rt2500usb_bbp_write(rt2x00dev, 61, value);
590
591 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_VGC, &eeprom);
592 value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_VGCUPPER);
593 rt2500usb_bbp_write(rt2x00dev, 17, value);
594
595 rt2x00dev->link.vgc_level = value;
596}
597
598static void rt2500usb_link_tuner(struct rt2x00_dev *rt2x00dev)
599{
600 int rssi = rt2x00_get_link_rssi(&rt2x00dev->link);
601 u16 bbp_thresh;
602 u16 vgc_bound;
603 u16 sens;
604 u16 r24;
605 u16 r25;
606 u16 r61;
607 u16 r17_sens;
608 u8 r17;
609 u8 up_bound;
610 u8 low_bound;
611
612 /*
Ivo van Doorn6bb40dd2008-02-03 15:49:59 +0100613 * Read current r17 value, as well as the sensitivity values
614 * for the r17 register.
615 */
616 rt2500usb_bbp_read(rt2x00dev, 17, &r17);
617 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R17, &r17_sens);
618
619 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_VGC, &vgc_bound);
620 up_bound = rt2x00_get_field16(vgc_bound, EEPROM_BBPTUNE_VGCUPPER);
621 low_bound = rt2x00_get_field16(vgc_bound, EEPROM_BBPTUNE_VGCLOWER);
622
623 /*
624 * If we are not associated, we should go straight to the
625 * dynamic CCA tuning.
626 */
627 if (!rt2x00dev->intf_associated)
628 goto dynamic_cca_tune;
629
630 /*
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700631 * Determine the BBP tuning threshold and correctly
632 * set BBP 24, 25 and 61.
633 */
634 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE, &bbp_thresh);
635 bbp_thresh = rt2x00_get_field16(bbp_thresh, EEPROM_BBPTUNE_THRESHOLD);
636
637 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R24, &r24);
638 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R25, &r25);
639 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R61, &r61);
640
641 if ((rssi + bbp_thresh) > 0) {
642 r24 = rt2x00_get_field16(r24, EEPROM_BBPTUNE_R24_HIGH);
643 r25 = rt2x00_get_field16(r25, EEPROM_BBPTUNE_R25_HIGH);
644 r61 = rt2x00_get_field16(r61, EEPROM_BBPTUNE_R61_HIGH);
645 } else {
646 r24 = rt2x00_get_field16(r24, EEPROM_BBPTUNE_R24_LOW);
647 r25 = rt2x00_get_field16(r25, EEPROM_BBPTUNE_R25_LOW);
648 r61 = rt2x00_get_field16(r61, EEPROM_BBPTUNE_R61_LOW);
649 }
650
651 rt2500usb_bbp_write(rt2x00dev, 24, r24);
652 rt2500usb_bbp_write(rt2x00dev, 25, r25);
653 rt2500usb_bbp_write(rt2x00dev, 61, r61);
654
655 /*
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700656 * A too low RSSI will cause too much false CCA which will
657 * then corrupt the R17 tuning. To remidy this the tuning should
658 * be stopped (While making sure the R17 value will not exceed limits)
659 */
660 if (rssi >= -40) {
661 if (r17 != 0x60)
662 rt2500usb_bbp_write(rt2x00dev, 17, 0x60);
663 return;
664 }
665
666 /*
667 * Special big-R17 for short distance
668 */
669 if (rssi >= -58) {
670 sens = rt2x00_get_field16(r17_sens, EEPROM_BBPTUNE_R17_LOW);
671 if (r17 != sens)
672 rt2500usb_bbp_write(rt2x00dev, 17, sens);
673 return;
674 }
675
676 /*
677 * Special mid-R17 for middle distance
678 */
679 if (rssi >= -74) {
680 sens = rt2x00_get_field16(r17_sens, EEPROM_BBPTUNE_R17_HIGH);
681 if (r17 != sens)
682 rt2500usb_bbp_write(rt2x00dev, 17, sens);
683 return;
684 }
685
686 /*
687 * Leave short or middle distance condition, restore r17
688 * to the dynamic tuning range.
689 */
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700690 low_bound = 0x32;
Ivo van Doorn6bb40dd2008-02-03 15:49:59 +0100691 if (rssi < -77)
692 up_bound -= (-77 - rssi);
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700693
694 if (up_bound < low_bound)
695 up_bound = low_bound;
696
697 if (r17 > up_bound) {
698 rt2500usb_bbp_write(rt2x00dev, 17, up_bound);
699 rt2x00dev->link.vgc_level = up_bound;
Ivo van Doorn6bb40dd2008-02-03 15:49:59 +0100700 return;
701 }
702
703dynamic_cca_tune:
704
705 /*
706 * R17 is inside the dynamic tuning range,
707 * start tuning the link based on the false cca counter.
708 */
709 if (rt2x00dev->link.qual.false_cca > 512 && r17 < up_bound) {
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700710 rt2500usb_bbp_write(rt2x00dev, 17, ++r17);
711 rt2x00dev->link.vgc_level = r17;
Ivo van Doornebcf26d2007-10-13 16:26:12 +0200712 } else if (rt2x00dev->link.qual.false_cca < 100 && r17 > low_bound) {
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700713 rt2500usb_bbp_write(rt2x00dev, 17, --r17);
714 rt2x00dev->link.vgc_level = r17;
715 }
716}
717
718/*
719 * Initialization functions.
720 */
721static int rt2500usb_init_registers(struct rt2x00_dev *rt2x00dev)
722{
723 u16 reg;
724
725 rt2x00usb_vendor_request_sw(rt2x00dev, USB_DEVICE_MODE, 0x0001,
726 USB_MODE_TEST, REGISTER_TIMEOUT);
727 rt2x00usb_vendor_request_sw(rt2x00dev, USB_SINGLE_WRITE, 0x0308,
728 0x00f0, REGISTER_TIMEOUT);
729
730 rt2500usb_register_read(rt2x00dev, TXRX_CSR2, &reg);
731 rt2x00_set_field16(&reg, TXRX_CSR2_DISABLE_RX, 1);
732 rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
733
734 rt2500usb_register_write(rt2x00dev, MAC_CSR13, 0x1111);
735 rt2500usb_register_write(rt2x00dev, MAC_CSR14, 0x1e11);
736
737 rt2500usb_register_read(rt2x00dev, MAC_CSR1, &reg);
738 rt2x00_set_field16(&reg, MAC_CSR1_SOFT_RESET, 1);
739 rt2x00_set_field16(&reg, MAC_CSR1_BBP_RESET, 1);
740 rt2x00_set_field16(&reg, MAC_CSR1_HOST_READY, 0);
741 rt2500usb_register_write(rt2x00dev, MAC_CSR1, reg);
742
743 rt2500usb_register_read(rt2x00dev, MAC_CSR1, &reg);
744 rt2x00_set_field16(&reg, MAC_CSR1_SOFT_RESET, 0);
745 rt2x00_set_field16(&reg, MAC_CSR1_BBP_RESET, 0);
746 rt2x00_set_field16(&reg, MAC_CSR1_HOST_READY, 0);
747 rt2500usb_register_write(rt2x00dev, MAC_CSR1, reg);
748
Ivo van Doorna9450b72008-02-03 15:53:40 +0100749 rt2500usb_register_read(rt2x00dev, MAC_CSR21, &reg);
750 rt2x00_set_field16(&reg, MAC_CSR21_ON_PERIOD, 70);
751 rt2x00_set_field16(&reg, MAC_CSR21_OFF_PERIOD, 30);
752 rt2500usb_register_write(rt2x00dev, MAC_CSR21, reg);
753
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700754 rt2500usb_register_read(rt2x00dev, TXRX_CSR5, &reg);
755 rt2x00_set_field16(&reg, TXRX_CSR5_BBP_ID0, 13);
756 rt2x00_set_field16(&reg, TXRX_CSR5_BBP_ID0_VALID, 1);
757 rt2x00_set_field16(&reg, TXRX_CSR5_BBP_ID1, 12);
758 rt2x00_set_field16(&reg, TXRX_CSR5_BBP_ID1_VALID, 1);
759 rt2500usb_register_write(rt2x00dev, TXRX_CSR5, reg);
760
761 rt2500usb_register_read(rt2x00dev, TXRX_CSR6, &reg);
762 rt2x00_set_field16(&reg, TXRX_CSR6_BBP_ID0, 10);
763 rt2x00_set_field16(&reg, TXRX_CSR6_BBP_ID0_VALID, 1);
764 rt2x00_set_field16(&reg, TXRX_CSR6_BBP_ID1, 11);
765 rt2x00_set_field16(&reg, TXRX_CSR6_BBP_ID1_VALID, 1);
766 rt2500usb_register_write(rt2x00dev, TXRX_CSR6, reg);
767
768 rt2500usb_register_read(rt2x00dev, TXRX_CSR7, &reg);
769 rt2x00_set_field16(&reg, TXRX_CSR7_BBP_ID0, 7);
770 rt2x00_set_field16(&reg, TXRX_CSR7_BBP_ID0_VALID, 1);
771 rt2x00_set_field16(&reg, TXRX_CSR7_BBP_ID1, 6);
772 rt2x00_set_field16(&reg, TXRX_CSR7_BBP_ID1_VALID, 1);
773 rt2500usb_register_write(rt2x00dev, TXRX_CSR7, reg);
774
775 rt2500usb_register_read(rt2x00dev, TXRX_CSR8, &reg);
776 rt2x00_set_field16(&reg, TXRX_CSR8_BBP_ID0, 5);
777 rt2x00_set_field16(&reg, TXRX_CSR8_BBP_ID0_VALID, 1);
778 rt2x00_set_field16(&reg, TXRX_CSR8_BBP_ID1, 0);
779 rt2x00_set_field16(&reg, TXRX_CSR8_BBP_ID1_VALID, 0);
780 rt2500usb_register_write(rt2x00dev, TXRX_CSR8, reg);
781
782 rt2500usb_register_write(rt2x00dev, TXRX_CSR21, 0xe78f);
783 rt2500usb_register_write(rt2x00dev, MAC_CSR9, 0xff1d);
784
785 if (rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_AWAKE))
786 return -EBUSY;
787
788 rt2500usb_register_read(rt2x00dev, MAC_CSR1, &reg);
789 rt2x00_set_field16(&reg, MAC_CSR1_SOFT_RESET, 0);
790 rt2x00_set_field16(&reg, MAC_CSR1_BBP_RESET, 0);
791 rt2x00_set_field16(&reg, MAC_CSR1_HOST_READY, 1);
792 rt2500usb_register_write(rt2x00dev, MAC_CSR1, reg);
793
Ivo van Doorn755a9572007-11-12 15:02:22 +0100794 if (rt2x00_rev(&rt2x00dev->chip) >= RT2570_VERSION_C) {
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700795 rt2500usb_register_read(rt2x00dev, PHY_CSR2, &reg);
Ivo van Doornddc827f2007-10-13 16:26:42 +0200796 rt2x00_set_field16(&reg, PHY_CSR2_LNA, 0);
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700797 } else {
Ivo van Doornddc827f2007-10-13 16:26:42 +0200798 reg = 0;
799 rt2x00_set_field16(&reg, PHY_CSR2_LNA, 1);
800 rt2x00_set_field16(&reg, PHY_CSR2_LNA_MODE, 3);
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700801 }
802 rt2500usb_register_write(rt2x00dev, PHY_CSR2, reg);
803
804 rt2500usb_register_write(rt2x00dev, MAC_CSR11, 0x0002);
805 rt2500usb_register_write(rt2x00dev, MAC_CSR22, 0x0053);
806 rt2500usb_register_write(rt2x00dev, MAC_CSR15, 0x01ee);
807 rt2500usb_register_write(rt2x00dev, MAC_CSR16, 0x0000);
808
809 rt2500usb_register_read(rt2x00dev, MAC_CSR8, &reg);
810 rt2x00_set_field16(&reg, MAC_CSR8_MAX_FRAME_UNIT,
811 rt2x00dev->rx->data_size);
812 rt2500usb_register_write(rt2x00dev, MAC_CSR8, reg);
813
814 rt2500usb_register_read(rt2x00dev, TXRX_CSR0, &reg);
815 rt2x00_set_field16(&reg, TXRX_CSR0_IV_OFFSET, IEEE80211_HEADER);
816 rt2x00_set_field16(&reg, TXRX_CSR0_KEY_ID, 0xff);
817 rt2500usb_register_write(rt2x00dev, TXRX_CSR0, reg);
818
819 rt2500usb_register_read(rt2x00dev, MAC_CSR18, &reg);
820 rt2x00_set_field16(&reg, MAC_CSR18_DELAY_AFTER_BEACON, 90);
821 rt2500usb_register_write(rt2x00dev, MAC_CSR18, reg);
822
823 rt2500usb_register_read(rt2x00dev, PHY_CSR4, &reg);
824 rt2x00_set_field16(&reg, PHY_CSR4_LOW_RF_LE, 1);
825 rt2500usb_register_write(rt2x00dev, PHY_CSR4, reg);
826
827 rt2500usb_register_read(rt2x00dev, TXRX_CSR1, &reg);
828 rt2x00_set_field16(&reg, TXRX_CSR1_AUTO_SEQUENCE, 1);
829 rt2500usb_register_write(rt2x00dev, TXRX_CSR1, reg);
830
831 return 0;
832}
833
834static int rt2500usb_init_bbp(struct rt2x00_dev *rt2x00dev)
835{
836 unsigned int i;
837 u16 eeprom;
838 u8 value;
839 u8 reg_id;
840
841 for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
842 rt2500usb_bbp_read(rt2x00dev, 0, &value);
843 if ((value != 0xff) && (value != 0x00))
844 goto continue_csr_init;
845 NOTICE(rt2x00dev, "Waiting for BBP register.\n");
846 udelay(REGISTER_BUSY_DELAY);
847 }
848
849 ERROR(rt2x00dev, "BBP register access failed, aborting.\n");
850 return -EACCES;
851
852continue_csr_init:
853 rt2500usb_bbp_write(rt2x00dev, 3, 0x02);
854 rt2500usb_bbp_write(rt2x00dev, 4, 0x19);
855 rt2500usb_bbp_write(rt2x00dev, 14, 0x1c);
856 rt2500usb_bbp_write(rt2x00dev, 15, 0x30);
857 rt2500usb_bbp_write(rt2x00dev, 16, 0xac);
858 rt2500usb_bbp_write(rt2x00dev, 18, 0x18);
859 rt2500usb_bbp_write(rt2x00dev, 19, 0xff);
860 rt2500usb_bbp_write(rt2x00dev, 20, 0x1e);
861 rt2500usb_bbp_write(rt2x00dev, 21, 0x08);
862 rt2500usb_bbp_write(rt2x00dev, 22, 0x08);
863 rt2500usb_bbp_write(rt2x00dev, 23, 0x08);
864 rt2500usb_bbp_write(rt2x00dev, 24, 0x80);
865 rt2500usb_bbp_write(rt2x00dev, 25, 0x50);
866 rt2500usb_bbp_write(rt2x00dev, 26, 0x08);
867 rt2500usb_bbp_write(rt2x00dev, 27, 0x23);
868 rt2500usb_bbp_write(rt2x00dev, 30, 0x10);
869 rt2500usb_bbp_write(rt2x00dev, 31, 0x2b);
870 rt2500usb_bbp_write(rt2x00dev, 32, 0xb9);
871 rt2500usb_bbp_write(rt2x00dev, 34, 0x12);
872 rt2500usb_bbp_write(rt2x00dev, 35, 0x50);
873 rt2500usb_bbp_write(rt2x00dev, 39, 0xc4);
874 rt2500usb_bbp_write(rt2x00dev, 40, 0x02);
875 rt2500usb_bbp_write(rt2x00dev, 41, 0x60);
876 rt2500usb_bbp_write(rt2x00dev, 53, 0x10);
877 rt2500usb_bbp_write(rt2x00dev, 54, 0x18);
878 rt2500usb_bbp_write(rt2x00dev, 56, 0x08);
879 rt2500usb_bbp_write(rt2x00dev, 57, 0x10);
880 rt2500usb_bbp_write(rt2x00dev, 58, 0x08);
881 rt2500usb_bbp_write(rt2x00dev, 61, 0x60);
882 rt2500usb_bbp_write(rt2x00dev, 62, 0x10);
883 rt2500usb_bbp_write(rt2x00dev, 75, 0xff);
884
885 DEBUG(rt2x00dev, "Start initialization from EEPROM...\n");
886 for (i = 0; i < EEPROM_BBP_SIZE; i++) {
887 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBP_START + i, &eeprom);
888
889 if (eeprom != 0xffff && eeprom != 0x0000) {
890 reg_id = rt2x00_get_field16(eeprom, EEPROM_BBP_REG_ID);
891 value = rt2x00_get_field16(eeprom, EEPROM_BBP_VALUE);
892 DEBUG(rt2x00dev, "BBP: 0x%02x, value: 0x%02x.\n",
893 reg_id, value);
894 rt2500usb_bbp_write(rt2x00dev, reg_id, value);
895 }
896 }
897 DEBUG(rt2x00dev, "...End initialization from EEPROM.\n");
898
899 return 0;
900}
901
902/*
903 * Device state switch handlers.
904 */
905static void rt2500usb_toggle_rx(struct rt2x00_dev *rt2x00dev,
906 enum dev_state state)
907{
908 u16 reg;
909
910 rt2500usb_register_read(rt2x00dev, TXRX_CSR2, &reg);
911 rt2x00_set_field16(&reg, TXRX_CSR2_DISABLE_RX,
912 state == STATE_RADIO_RX_OFF);
913 rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
914}
915
916static int rt2500usb_enable_radio(struct rt2x00_dev *rt2x00dev)
917{
918 /*
919 * Initialize all registers.
920 */
921 if (rt2500usb_init_registers(rt2x00dev) ||
922 rt2500usb_init_bbp(rt2x00dev)) {
923 ERROR(rt2x00dev, "Register initialization failed.\n");
924 return -EIO;
925 }
926
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700927 return 0;
928}
929
930static void rt2500usb_disable_radio(struct rt2x00_dev *rt2x00dev)
931{
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700932 rt2500usb_register_write(rt2x00dev, MAC_CSR13, 0x2121);
933 rt2500usb_register_write(rt2x00dev, MAC_CSR14, 0x2121);
934
935 /*
936 * Disable synchronisation.
937 */
938 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, 0);
939
940 rt2x00usb_disable_radio(rt2x00dev);
941}
942
943static int rt2500usb_set_state(struct rt2x00_dev *rt2x00dev,
944 enum dev_state state)
945{
946 u16 reg;
947 u16 reg2;
948 unsigned int i;
949 char put_to_sleep;
950 char bbp_state;
951 char rf_state;
952
953 put_to_sleep = (state != STATE_AWAKE);
954
955 reg = 0;
956 rt2x00_set_field16(&reg, MAC_CSR17_BBP_DESIRE_STATE, state);
957 rt2x00_set_field16(&reg, MAC_CSR17_RF_DESIRE_STATE, state);
958 rt2x00_set_field16(&reg, MAC_CSR17_PUT_TO_SLEEP, put_to_sleep);
959 rt2500usb_register_write(rt2x00dev, MAC_CSR17, reg);
960 rt2x00_set_field16(&reg, MAC_CSR17_SET_STATE, 1);
961 rt2500usb_register_write(rt2x00dev, MAC_CSR17, reg);
962
963 /*
964 * Device is not guaranteed to be in the requested state yet.
965 * We must wait until the register indicates that the
966 * device has entered the correct state.
967 */
968 for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
969 rt2500usb_register_read(rt2x00dev, MAC_CSR17, &reg2);
970 bbp_state = rt2x00_get_field16(reg2, MAC_CSR17_BBP_CURR_STATE);
971 rf_state = rt2x00_get_field16(reg2, MAC_CSR17_RF_CURR_STATE);
972 if (bbp_state == state && rf_state == state)
973 return 0;
974 rt2500usb_register_write(rt2x00dev, MAC_CSR17, reg);
975 msleep(30);
976 }
977
978 NOTICE(rt2x00dev, "Device failed to enter state %d, "
979 "current device state: bbp %d and rf %d.\n",
980 state, bbp_state, rf_state);
981
982 return -EBUSY;
983}
984
985static int rt2500usb_set_device_state(struct rt2x00_dev *rt2x00dev,
986 enum dev_state state)
987{
988 int retval = 0;
989
990 switch (state) {
991 case STATE_RADIO_ON:
992 retval = rt2500usb_enable_radio(rt2x00dev);
993 break;
994 case STATE_RADIO_OFF:
995 rt2500usb_disable_radio(rt2x00dev);
996 break;
997 case STATE_RADIO_RX_ON:
Ivo van Doorn61667d82008-02-25 23:15:05 +0100998 case STATE_RADIO_RX_ON_LINK:
999 rt2500usb_toggle_rx(rt2x00dev, STATE_RADIO_RX_ON);
1000 break;
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001001 case STATE_RADIO_RX_OFF:
Ivo van Doorn61667d82008-02-25 23:15:05 +01001002 case STATE_RADIO_RX_OFF_LINK:
1003 rt2500usb_toggle_rx(rt2x00dev, STATE_RADIO_RX_OFF);
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001004 break;
1005 case STATE_DEEP_SLEEP:
1006 case STATE_SLEEP:
1007 case STATE_STANDBY:
1008 case STATE_AWAKE:
1009 retval = rt2500usb_set_state(rt2x00dev, state);
1010 break;
1011 default:
1012 retval = -ENOTSUPP;
1013 break;
1014 }
1015
1016 return retval;
1017}
1018
1019/*
1020 * TX descriptor initialization
1021 */
1022static void rt2500usb_write_tx_desc(struct rt2x00_dev *rt2x00dev,
Ivo van Doorndd3193e2008-01-06 23:41:10 +01001023 struct sk_buff *skb,
Ivo van Doorn181d6902008-02-05 16:42:23 -05001024 struct txentry_desc *txdesc,
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001025 struct ieee80211_tx_control *control)
1026{
Ivo van Doorn181d6902008-02-05 16:42:23 -05001027 struct skb_frame_desc *skbdesc = get_skb_frame_desc(skb);
Ivo van Doorndd3193e2008-01-06 23:41:10 +01001028 __le32 *txd = skbdesc->desc;
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001029 u32 word;
1030
1031 /*
1032 * Start writing the descriptor words.
1033 */
1034 rt2x00_desc_read(txd, 1, &word);
1035 rt2x00_set_field32(&word, TXD_W1_IV_OFFSET, IEEE80211_HEADER);
Ivo van Doorn181d6902008-02-05 16:42:23 -05001036 rt2x00_set_field32(&word, TXD_W1_AIFS, txdesc->aifs);
1037 rt2x00_set_field32(&word, TXD_W1_CWMIN, txdesc->cw_min);
1038 rt2x00_set_field32(&word, TXD_W1_CWMAX, txdesc->cw_max);
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001039 rt2x00_desc_write(txd, 1, word);
1040
1041 rt2x00_desc_read(txd, 2, &word);
Ivo van Doorn181d6902008-02-05 16:42:23 -05001042 rt2x00_set_field32(&word, TXD_W2_PLCP_SIGNAL, txdesc->signal);
1043 rt2x00_set_field32(&word, TXD_W2_PLCP_SERVICE, txdesc->service);
1044 rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_LOW, txdesc->length_low);
1045 rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_HIGH, txdesc->length_high);
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001046 rt2x00_desc_write(txd, 2, word);
1047
1048 rt2x00_desc_read(txd, 0, &word);
1049 rt2x00_set_field32(&word, TXD_W0_RETRY_LIMIT, control->retry_limit);
1050 rt2x00_set_field32(&word, TXD_W0_MORE_FRAG,
Ivo van Doorn181d6902008-02-05 16:42:23 -05001051 test_bit(ENTRY_TXD_MORE_FRAG, &txdesc->flags));
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001052 rt2x00_set_field32(&word, TXD_W0_ACK,
Ivo van Doorn181d6902008-02-05 16:42:23 -05001053 test_bit(ENTRY_TXD_ACK, &txdesc->flags));
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001054 rt2x00_set_field32(&word, TXD_W0_TIMESTAMP,
Ivo van Doorn181d6902008-02-05 16:42:23 -05001055 test_bit(ENTRY_TXD_REQ_TIMESTAMP, &txdesc->flags));
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001056 rt2x00_set_field32(&word, TXD_W0_OFDM,
Ivo van Doorn181d6902008-02-05 16:42:23 -05001057 test_bit(ENTRY_TXD_OFDM_RATE, &txdesc->flags));
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001058 rt2x00_set_field32(&word, TXD_W0_NEW_SEQ,
1059 !!(control->flags & IEEE80211_TXCTL_FIRST_FRAGMENT));
Ivo van Doorn181d6902008-02-05 16:42:23 -05001060 rt2x00_set_field32(&word, TXD_W0_IFS, txdesc->ifs);
Ivo van Doorndd3193e2008-01-06 23:41:10 +01001061 rt2x00_set_field32(&word, TXD_W0_DATABYTE_COUNT, skbdesc->data_len);
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001062 rt2x00_set_field32(&word, TXD_W0_CIPHER, CIPHER_NONE);
1063 rt2x00_desc_write(txd, 0, word);
1064}
1065
Ivo van Doorndd9fa2d2007-10-06 14:15:46 +02001066static int rt2500usb_get_tx_data_len(struct rt2x00_dev *rt2x00dev,
Ivo van Doornb242e892007-11-15 23:41:31 +01001067 struct sk_buff *skb)
Ivo van Doorndd9fa2d2007-10-06 14:15:46 +02001068{
1069 int length;
1070
1071 /*
1072 * The length _must_ be a multiple of 2,
1073 * but it must _not_ be a multiple of the USB packet size.
1074 */
1075 length = roundup(skb->len, 2);
Ivo van Doornb242e892007-11-15 23:41:31 +01001076 length += (2 * !(length % rt2x00dev->usb_maxpacket));
Ivo van Doorndd9fa2d2007-10-06 14:15:46 +02001077
1078 return length;
1079}
1080
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001081/*
1082 * TX data initialization
1083 */
1084static void rt2500usb_kick_tx_queue(struct rt2x00_dev *rt2x00dev,
Ivo van Doorn5957da42008-02-03 15:54:57 +01001085 const unsigned int queue)
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001086{
1087 u16 reg;
1088
Ivo van Doorn5957da42008-02-03 15:54:57 +01001089 if (queue != RT2X00_BCN_QUEUE_BEACON)
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001090 return;
1091
1092 rt2500usb_register_read(rt2x00dev, TXRX_CSR19, &reg);
1093 if (!rt2x00_get_field16(reg, TXRX_CSR19_BEACON_GEN)) {
1094 rt2x00_set_field16(&reg, TXRX_CSR19_BEACON_GEN, 1);
1095 /*
1096 * Beacon generation will fail initially.
1097 * To prevent this we need to register the TXRX_CSR19
1098 * register several times.
1099 */
1100 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1101 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, 0);
1102 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1103 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, 0);
1104 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1105 }
1106}
1107
1108/*
1109 * RX control handlers
1110 */
Ivo van Doorn181d6902008-02-05 16:42:23 -05001111static void rt2500usb_fill_rxdone(struct queue_entry *entry,
1112 struct rxdone_entry_desc *rxdesc)
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001113{
Ivo van Doorn181d6902008-02-05 16:42:23 -05001114 struct queue_entry_priv_usb_rx *priv_rx = entry->priv_data;
1115 struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
1116 __le32 *rxd =
1117 (__le32 *)(entry->skb->data +
1118 (priv_rx->urb->actual_length - entry->queue->desc_size));
1119 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)entry->skb->data;
1120 int header_size = ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_control));
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001121 u32 word0;
1122 u32 word1;
1123
1124 rt2x00_desc_read(rxd, 0, &word0);
1125 rt2x00_desc_read(rxd, 1, &word1);
1126
Ivo van Doorn181d6902008-02-05 16:42:23 -05001127 rxdesc->flags = 0;
Johannes Berg4150c572007-09-17 01:29:23 -04001128 if (rt2x00_get_field32(word0, RXD_W0_CRC_ERROR))
Ivo van Doorn181d6902008-02-05 16:42:23 -05001129 rxdesc->flags |= RX_FLAG_FAILED_FCS_CRC;
Johannes Berg4150c572007-09-17 01:29:23 -04001130 if (rt2x00_get_field32(word0, RXD_W0_PHYSICAL_ERROR))
Ivo van Doorn181d6902008-02-05 16:42:23 -05001131 rxdesc->flags |= RX_FLAG_FAILED_PLCP_CRC;
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001132
1133 /*
1134 * Obtain the status about this packet.
1135 */
Ivo van Doorn181d6902008-02-05 16:42:23 -05001136 rxdesc->signal = rt2x00_get_field32(word1, RXD_W1_SIGNAL);
1137 rxdesc->rssi = rt2x00_get_field32(word1, RXD_W1_RSSI) -
1138 entry->queue->rt2x00dev->rssi_offset;
1139 rxdesc->ofdm = rt2x00_get_field32(word0, RXD_W0_OFDM);
1140 rxdesc->size = rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT);
1141 rxdesc->my_bss = !!rt2x00_get_field32(word0, RXD_W0_MY_BSS);
Ivo van Doorn7d1de802008-01-06 23:42:04 +01001142
1143 /*
Ivo van Doorn181d6902008-02-05 16:42:23 -05001144 * The data behind the ieee80211 header must be
1145 * aligned on a 4 byte boundary.
Ivo van Doorn7d1de802008-01-06 23:42:04 +01001146 */
Ivo van Doorn181d6902008-02-05 16:42:23 -05001147 if (header_size % 4 == 0) {
1148 skb_push(entry->skb, 2);
1149 memmove(entry->skb->data, entry->skb->data + 2,
1150 entry->skb->len - 2);
1151 }
1152
1153 /*
1154 * Set descriptor pointer.
1155 */
Ivo van Doorn7d1de802008-01-06 23:42:04 +01001156 skbdesc->data = entry->skb->data;
Ivo van Doorn181d6902008-02-05 16:42:23 -05001157 skbdesc->data_len = entry->queue->data_size;
1158 skbdesc->desc = entry->skb->data + rxdesc->size;
1159 skbdesc->desc_len = entry->queue->desc_size;
1160
1161 /*
1162 * Remove descriptor from skb buffer and trim the whole thing
1163 * down to only contain data.
1164 */
1165 skb_trim(entry->skb, rxdesc->size);
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001166}
1167
1168/*
1169 * Interrupt functions.
1170 */
1171static void rt2500usb_beacondone(struct urb *urb)
1172{
Ivo van Doorn181d6902008-02-05 16:42:23 -05001173 struct queue_entry *entry = (struct queue_entry *)urb->context;
1174 struct queue_entry_priv_usb_bcn *priv_bcn = entry->priv_data;
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001175
Ivo van Doorn181d6902008-02-05 16:42:23 -05001176 if (!test_bit(DEVICE_ENABLED_RADIO, &entry->queue->rt2x00dev->flags))
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001177 return;
1178
1179 /*
1180 * Check if this was the guardian beacon,
1181 * if that was the case we need to send the real beacon now.
1182 * Otherwise we should free the sk_buffer, the device
1183 * should be doing the rest of the work now.
1184 */
Ivo van Doorn181d6902008-02-05 16:42:23 -05001185 if (priv_bcn->guardian_urb == urb) {
1186 usb_submit_urb(priv_bcn->urb, GFP_ATOMIC);
1187 } else if (priv_bcn->urb == urb) {
1188 dev_kfree_skb(entry->skb);
1189 entry->skb = NULL;
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001190 }
1191}
1192
1193/*
1194 * Device probe functions.
1195 */
1196static int rt2500usb_validate_eeprom(struct rt2x00_dev *rt2x00dev)
1197{
1198 u16 word;
1199 u8 *mac;
Ivo van Doorn6bb40dd2008-02-03 15:49:59 +01001200 u8 bbp;
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001201
1202 rt2x00usb_eeprom_read(rt2x00dev, rt2x00dev->eeprom, EEPROM_SIZE);
1203
1204 /*
1205 * Start validation of the data that has been read.
1206 */
1207 mac = rt2x00_eeprom_addr(rt2x00dev, EEPROM_MAC_ADDR_0);
1208 if (!is_valid_ether_addr(mac)) {
Joe Perches0795af52007-10-03 17:59:30 -07001209 DECLARE_MAC_BUF(macbuf);
1210
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001211 random_ether_addr(mac);
Joe Perches0795af52007-10-03 17:59:30 -07001212 EEPROM(rt2x00dev, "MAC: %s\n", print_mac(macbuf, mac));
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001213 }
1214
1215 rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &word);
1216 if (word == 0xffff) {
1217 rt2x00_set_field16(&word, EEPROM_ANTENNA_NUM, 2);
Ivo van Doorn362f3b62007-10-13 16:26:18 +02001218 rt2x00_set_field16(&word, EEPROM_ANTENNA_TX_DEFAULT,
1219 ANTENNA_SW_DIVERSITY);
1220 rt2x00_set_field16(&word, EEPROM_ANTENNA_RX_DEFAULT,
1221 ANTENNA_SW_DIVERSITY);
1222 rt2x00_set_field16(&word, EEPROM_ANTENNA_LED_MODE,
1223 LED_MODE_DEFAULT);
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001224 rt2x00_set_field16(&word, EEPROM_ANTENNA_DYN_TXAGC, 0);
1225 rt2x00_set_field16(&word, EEPROM_ANTENNA_HARDWARE_RADIO, 0);
1226 rt2x00_set_field16(&word, EEPROM_ANTENNA_RF_TYPE, RF2522);
1227 rt2x00_eeprom_write(rt2x00dev, EEPROM_ANTENNA, word);
1228 EEPROM(rt2x00dev, "Antenna: 0x%04x\n", word);
1229 }
1230
1231 rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &word);
1232 if (word == 0xffff) {
1233 rt2x00_set_field16(&word, EEPROM_NIC_CARDBUS_ACCEL, 0);
1234 rt2x00_set_field16(&word, EEPROM_NIC_DYN_BBP_TUNE, 0);
1235 rt2x00_set_field16(&word, EEPROM_NIC_CCK_TX_POWER, 0);
1236 rt2x00_eeprom_write(rt2x00dev, EEPROM_NIC, word);
1237 EEPROM(rt2x00dev, "NIC: 0x%04x\n", word);
1238 }
1239
1240 rt2x00_eeprom_read(rt2x00dev, EEPROM_CALIBRATE_OFFSET, &word);
1241 if (word == 0xffff) {
1242 rt2x00_set_field16(&word, EEPROM_CALIBRATE_OFFSET_RSSI,
1243 DEFAULT_RSSI_OFFSET);
1244 rt2x00_eeprom_write(rt2x00dev, EEPROM_CALIBRATE_OFFSET, word);
1245 EEPROM(rt2x00dev, "Calibrate offset: 0x%04x\n", word);
1246 }
1247
1248 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE, &word);
1249 if (word == 0xffff) {
1250 rt2x00_set_field16(&word, EEPROM_BBPTUNE_THRESHOLD, 45);
1251 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE, word);
1252 EEPROM(rt2x00dev, "BBPtune: 0x%04x\n", word);
1253 }
1254
Ivo van Doorn6bb40dd2008-02-03 15:49:59 +01001255 /*
1256 * Switch lower vgc bound to current BBP R17 value,
1257 * lower the value a bit for better quality.
1258 */
1259 rt2500usb_bbp_read(rt2x00dev, 17, &bbp);
1260 bbp -= 6;
1261
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001262 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_VGC, &word);
1263 if (word == 0xffff) {
1264 rt2x00_set_field16(&word, EEPROM_BBPTUNE_VGCUPPER, 0x40);
Ivo van Doorn6bb40dd2008-02-03 15:49:59 +01001265 rt2x00_set_field16(&word, EEPROM_BBPTUNE_VGCLOWER, bbp);
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001266 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_VGC, word);
1267 EEPROM(rt2x00dev, "BBPtune vgc: 0x%04x\n", word);
1268 }
1269
1270 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R17, &word);
1271 if (word == 0xffff) {
1272 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R17_LOW, 0x48);
1273 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R17_HIGH, 0x41);
1274 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R17, word);
1275 EEPROM(rt2x00dev, "BBPtune r17: 0x%04x\n", word);
Ivo van Doorn6bb40dd2008-02-03 15:49:59 +01001276 } else {
1277 rt2x00_set_field16(&word, EEPROM_BBPTUNE_VGCLOWER, bbp);
1278 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_VGC, word);
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001279 }
1280
1281 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R24, &word);
1282 if (word == 0xffff) {
1283 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R24_LOW, 0x40);
1284 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R24_HIGH, 0x80);
1285 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R24, word);
1286 EEPROM(rt2x00dev, "BBPtune r24: 0x%04x\n", word);
1287 }
1288
1289 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R25, &word);
1290 if (word == 0xffff) {
1291 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R25_LOW, 0x40);
1292 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R25_HIGH, 0x50);
1293 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R25, word);
1294 EEPROM(rt2x00dev, "BBPtune r25: 0x%04x\n", word);
1295 }
1296
1297 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R61, &word);
1298 if (word == 0xffff) {
1299 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R61_LOW, 0x60);
1300 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R61_HIGH, 0x6d);
1301 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R61, word);
1302 EEPROM(rt2x00dev, "BBPtune r61: 0x%04x\n", word);
1303 }
1304
1305 return 0;
1306}
1307
1308static int rt2500usb_init_eeprom(struct rt2x00_dev *rt2x00dev)
1309{
1310 u16 reg;
1311 u16 value;
1312 u16 eeprom;
1313
1314 /*
1315 * Read EEPROM word for configuration.
1316 */
1317 rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &eeprom);
1318
1319 /*
1320 * Identify RF chipset.
1321 */
1322 value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RF_TYPE);
1323 rt2500usb_register_read(rt2x00dev, MAC_CSR0, &reg);
1324 rt2x00_set_chip(rt2x00dev, RT2570, value, reg);
1325
Ivo van Doorn755a9572007-11-12 15:02:22 +01001326 if (!rt2x00_check_rev(&rt2x00dev->chip, 0)) {
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001327 ERROR(rt2x00dev, "Invalid RT chipset detected.\n");
1328 return -ENODEV;
1329 }
1330
1331 if (!rt2x00_rf(&rt2x00dev->chip, RF2522) &&
1332 !rt2x00_rf(&rt2x00dev->chip, RF2523) &&
1333 !rt2x00_rf(&rt2x00dev->chip, RF2524) &&
1334 !rt2x00_rf(&rt2x00dev->chip, RF2525) &&
1335 !rt2x00_rf(&rt2x00dev->chip, RF2525E) &&
1336 !rt2x00_rf(&rt2x00dev->chip, RF5222)) {
1337 ERROR(rt2x00dev, "Invalid RF chipset detected.\n");
1338 return -ENODEV;
1339 }
1340
1341 /*
1342 * Identify default antenna configuration.
1343 */
Ivo van Doornaddc81b2007-10-13 16:26:23 +02001344 rt2x00dev->default_ant.tx =
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001345 rt2x00_get_field16(eeprom, EEPROM_ANTENNA_TX_DEFAULT);
Ivo van Doornaddc81b2007-10-13 16:26:23 +02001346 rt2x00dev->default_ant.rx =
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001347 rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RX_DEFAULT);
1348
1349 /*
Ivo van Doornaddc81b2007-10-13 16:26:23 +02001350 * When the eeprom indicates SW_DIVERSITY use HW_DIVERSITY instead.
1351 * I am not 100% sure about this, but the legacy drivers do not
1352 * indicate antenna swapping in software is required when
1353 * diversity is enabled.
1354 */
1355 if (rt2x00dev->default_ant.tx == ANTENNA_SW_DIVERSITY)
1356 rt2x00dev->default_ant.tx = ANTENNA_HW_DIVERSITY;
1357 if (rt2x00dev->default_ant.rx == ANTENNA_SW_DIVERSITY)
1358 rt2x00dev->default_ant.rx = ANTENNA_HW_DIVERSITY;
1359
1360 /*
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001361 * Store led mode, for correct led behaviour.
1362 */
Ivo van Doorna9450b72008-02-03 15:53:40 +01001363#ifdef CONFIG_RT2500USB_LEDS
1364 value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_LED_MODE);
1365
1366 switch (value) {
1367 case LED_MODE_ASUS:
1368 case LED_MODE_ALPHA:
1369 case LED_MODE_DEFAULT:
1370 rt2x00dev->led_flags = LED_SUPPORT_RADIO;
1371 break;
1372 case LED_MODE_TXRX_ACTIVITY:
1373 rt2x00dev->led_flags =
1374 LED_SUPPORT_RADIO | LED_SUPPORT_ACTIVITY;
1375 break;
1376 case LED_MODE_SIGNAL_STRENGTH:
1377 rt2x00dev->led_flags = LED_SUPPORT_RADIO;
1378 break;
1379 }
1380#endif /* CONFIG_RT2500USB_LEDS */
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001381
1382 /*
1383 * Check if the BBP tuning should be disabled.
1384 */
1385 rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &eeprom);
1386 if (rt2x00_get_field16(eeprom, EEPROM_NIC_DYN_BBP_TUNE))
1387 __set_bit(CONFIG_DISABLE_LINK_TUNING, &rt2x00dev->flags);
1388
1389 /*
1390 * Read the RSSI <-> dBm offset information.
1391 */
1392 rt2x00_eeprom_read(rt2x00dev, EEPROM_CALIBRATE_OFFSET, &eeprom);
1393 rt2x00dev->rssi_offset =
1394 rt2x00_get_field16(eeprom, EEPROM_CALIBRATE_OFFSET_RSSI);
1395
1396 return 0;
1397}
1398
1399/*
1400 * RF value list for RF2522
1401 * Supports: 2.4 GHz
1402 */
1403static const struct rf_channel rf_vals_bg_2522[] = {
1404 { 1, 0x00002050, 0x000c1fda, 0x00000101, 0 },
1405 { 2, 0x00002050, 0x000c1fee, 0x00000101, 0 },
1406 { 3, 0x00002050, 0x000c2002, 0x00000101, 0 },
1407 { 4, 0x00002050, 0x000c2016, 0x00000101, 0 },
1408 { 5, 0x00002050, 0x000c202a, 0x00000101, 0 },
1409 { 6, 0x00002050, 0x000c203e, 0x00000101, 0 },
1410 { 7, 0x00002050, 0x000c2052, 0x00000101, 0 },
1411 { 8, 0x00002050, 0x000c2066, 0x00000101, 0 },
1412 { 9, 0x00002050, 0x000c207a, 0x00000101, 0 },
1413 { 10, 0x00002050, 0x000c208e, 0x00000101, 0 },
1414 { 11, 0x00002050, 0x000c20a2, 0x00000101, 0 },
1415 { 12, 0x00002050, 0x000c20b6, 0x00000101, 0 },
1416 { 13, 0x00002050, 0x000c20ca, 0x00000101, 0 },
1417 { 14, 0x00002050, 0x000c20fa, 0x00000101, 0 },
1418};
1419
1420/*
1421 * RF value list for RF2523
1422 * Supports: 2.4 GHz
1423 */
1424static const struct rf_channel rf_vals_bg_2523[] = {
1425 { 1, 0x00022010, 0x00000c9e, 0x000e0111, 0x00000a1b },
1426 { 2, 0x00022010, 0x00000ca2, 0x000e0111, 0x00000a1b },
1427 { 3, 0x00022010, 0x00000ca6, 0x000e0111, 0x00000a1b },
1428 { 4, 0x00022010, 0x00000caa, 0x000e0111, 0x00000a1b },
1429 { 5, 0x00022010, 0x00000cae, 0x000e0111, 0x00000a1b },
1430 { 6, 0x00022010, 0x00000cb2, 0x000e0111, 0x00000a1b },
1431 { 7, 0x00022010, 0x00000cb6, 0x000e0111, 0x00000a1b },
1432 { 8, 0x00022010, 0x00000cba, 0x000e0111, 0x00000a1b },
1433 { 9, 0x00022010, 0x00000cbe, 0x000e0111, 0x00000a1b },
1434 { 10, 0x00022010, 0x00000d02, 0x000e0111, 0x00000a1b },
1435 { 11, 0x00022010, 0x00000d06, 0x000e0111, 0x00000a1b },
1436 { 12, 0x00022010, 0x00000d0a, 0x000e0111, 0x00000a1b },
1437 { 13, 0x00022010, 0x00000d0e, 0x000e0111, 0x00000a1b },
1438 { 14, 0x00022010, 0x00000d1a, 0x000e0111, 0x00000a03 },
1439};
1440
1441/*
1442 * RF value list for RF2524
1443 * Supports: 2.4 GHz
1444 */
1445static const struct rf_channel rf_vals_bg_2524[] = {
1446 { 1, 0x00032020, 0x00000c9e, 0x00000101, 0x00000a1b },
1447 { 2, 0x00032020, 0x00000ca2, 0x00000101, 0x00000a1b },
1448 { 3, 0x00032020, 0x00000ca6, 0x00000101, 0x00000a1b },
1449 { 4, 0x00032020, 0x00000caa, 0x00000101, 0x00000a1b },
1450 { 5, 0x00032020, 0x00000cae, 0x00000101, 0x00000a1b },
1451 { 6, 0x00032020, 0x00000cb2, 0x00000101, 0x00000a1b },
1452 { 7, 0x00032020, 0x00000cb6, 0x00000101, 0x00000a1b },
1453 { 8, 0x00032020, 0x00000cba, 0x00000101, 0x00000a1b },
1454 { 9, 0x00032020, 0x00000cbe, 0x00000101, 0x00000a1b },
1455 { 10, 0x00032020, 0x00000d02, 0x00000101, 0x00000a1b },
1456 { 11, 0x00032020, 0x00000d06, 0x00000101, 0x00000a1b },
1457 { 12, 0x00032020, 0x00000d0a, 0x00000101, 0x00000a1b },
1458 { 13, 0x00032020, 0x00000d0e, 0x00000101, 0x00000a1b },
1459 { 14, 0x00032020, 0x00000d1a, 0x00000101, 0x00000a03 },
1460};
1461
1462/*
1463 * RF value list for RF2525
1464 * Supports: 2.4 GHz
1465 */
1466static const struct rf_channel rf_vals_bg_2525[] = {
1467 { 1, 0x00022020, 0x00080c9e, 0x00060111, 0x00000a1b },
1468 { 2, 0x00022020, 0x00080ca2, 0x00060111, 0x00000a1b },
1469 { 3, 0x00022020, 0x00080ca6, 0x00060111, 0x00000a1b },
1470 { 4, 0x00022020, 0x00080caa, 0x00060111, 0x00000a1b },
1471 { 5, 0x00022020, 0x00080cae, 0x00060111, 0x00000a1b },
1472 { 6, 0x00022020, 0x00080cb2, 0x00060111, 0x00000a1b },
1473 { 7, 0x00022020, 0x00080cb6, 0x00060111, 0x00000a1b },
1474 { 8, 0x00022020, 0x00080cba, 0x00060111, 0x00000a1b },
1475 { 9, 0x00022020, 0x00080cbe, 0x00060111, 0x00000a1b },
1476 { 10, 0x00022020, 0x00080d02, 0x00060111, 0x00000a1b },
1477 { 11, 0x00022020, 0x00080d06, 0x00060111, 0x00000a1b },
1478 { 12, 0x00022020, 0x00080d0a, 0x00060111, 0x00000a1b },
1479 { 13, 0x00022020, 0x00080d0e, 0x00060111, 0x00000a1b },
1480 { 14, 0x00022020, 0x00080d1a, 0x00060111, 0x00000a03 },
1481};
1482
1483/*
1484 * RF value list for RF2525e
1485 * Supports: 2.4 GHz
1486 */
1487static const struct rf_channel rf_vals_bg_2525e[] = {
1488 { 1, 0x00022010, 0x0000089a, 0x00060111, 0x00000e1b },
1489 { 2, 0x00022010, 0x0000089e, 0x00060111, 0x00000e07 },
1490 { 3, 0x00022010, 0x0000089e, 0x00060111, 0x00000e1b },
1491 { 4, 0x00022010, 0x000008a2, 0x00060111, 0x00000e07 },
1492 { 5, 0x00022010, 0x000008a2, 0x00060111, 0x00000e1b },
1493 { 6, 0x00022010, 0x000008a6, 0x00060111, 0x00000e07 },
1494 { 7, 0x00022010, 0x000008a6, 0x00060111, 0x00000e1b },
1495 { 8, 0x00022010, 0x000008aa, 0x00060111, 0x00000e07 },
1496 { 9, 0x00022010, 0x000008aa, 0x00060111, 0x00000e1b },
1497 { 10, 0x00022010, 0x000008ae, 0x00060111, 0x00000e07 },
1498 { 11, 0x00022010, 0x000008ae, 0x00060111, 0x00000e1b },
1499 { 12, 0x00022010, 0x000008b2, 0x00060111, 0x00000e07 },
1500 { 13, 0x00022010, 0x000008b2, 0x00060111, 0x00000e1b },
1501 { 14, 0x00022010, 0x000008b6, 0x00060111, 0x00000e23 },
1502};
1503
1504/*
1505 * RF value list for RF5222
1506 * Supports: 2.4 GHz & 5.2 GHz
1507 */
1508static const struct rf_channel rf_vals_5222[] = {
1509 { 1, 0x00022020, 0x00001136, 0x00000101, 0x00000a0b },
1510 { 2, 0x00022020, 0x0000113a, 0x00000101, 0x00000a0b },
1511 { 3, 0x00022020, 0x0000113e, 0x00000101, 0x00000a0b },
1512 { 4, 0x00022020, 0x00001182, 0x00000101, 0x00000a0b },
1513 { 5, 0x00022020, 0x00001186, 0x00000101, 0x00000a0b },
1514 { 6, 0x00022020, 0x0000118a, 0x00000101, 0x00000a0b },
1515 { 7, 0x00022020, 0x0000118e, 0x00000101, 0x00000a0b },
1516 { 8, 0x00022020, 0x00001192, 0x00000101, 0x00000a0b },
1517 { 9, 0x00022020, 0x00001196, 0x00000101, 0x00000a0b },
1518 { 10, 0x00022020, 0x0000119a, 0x00000101, 0x00000a0b },
1519 { 11, 0x00022020, 0x0000119e, 0x00000101, 0x00000a0b },
1520 { 12, 0x00022020, 0x000011a2, 0x00000101, 0x00000a0b },
1521 { 13, 0x00022020, 0x000011a6, 0x00000101, 0x00000a0b },
1522 { 14, 0x00022020, 0x000011ae, 0x00000101, 0x00000a1b },
1523
1524 /* 802.11 UNI / HyperLan 2 */
1525 { 36, 0x00022010, 0x00018896, 0x00000101, 0x00000a1f },
1526 { 40, 0x00022010, 0x0001889a, 0x00000101, 0x00000a1f },
1527 { 44, 0x00022010, 0x0001889e, 0x00000101, 0x00000a1f },
1528 { 48, 0x00022010, 0x000188a2, 0x00000101, 0x00000a1f },
1529 { 52, 0x00022010, 0x000188a6, 0x00000101, 0x00000a1f },
1530 { 66, 0x00022010, 0x000188aa, 0x00000101, 0x00000a1f },
1531 { 60, 0x00022010, 0x000188ae, 0x00000101, 0x00000a1f },
1532 { 64, 0x00022010, 0x000188b2, 0x00000101, 0x00000a1f },
1533
1534 /* 802.11 HyperLan 2 */
1535 { 100, 0x00022010, 0x00008802, 0x00000101, 0x00000a0f },
1536 { 104, 0x00022010, 0x00008806, 0x00000101, 0x00000a0f },
1537 { 108, 0x00022010, 0x0000880a, 0x00000101, 0x00000a0f },
1538 { 112, 0x00022010, 0x0000880e, 0x00000101, 0x00000a0f },
1539 { 116, 0x00022010, 0x00008812, 0x00000101, 0x00000a0f },
1540 { 120, 0x00022010, 0x00008816, 0x00000101, 0x00000a0f },
1541 { 124, 0x00022010, 0x0000881a, 0x00000101, 0x00000a0f },
1542 { 128, 0x00022010, 0x0000881e, 0x00000101, 0x00000a0f },
1543 { 132, 0x00022010, 0x00008822, 0x00000101, 0x00000a0f },
1544 { 136, 0x00022010, 0x00008826, 0x00000101, 0x00000a0f },
1545
1546 /* 802.11 UNII */
1547 { 140, 0x00022010, 0x0000882a, 0x00000101, 0x00000a0f },
1548 { 149, 0x00022020, 0x000090a6, 0x00000101, 0x00000a07 },
1549 { 153, 0x00022020, 0x000090ae, 0x00000101, 0x00000a07 },
1550 { 157, 0x00022020, 0x000090b6, 0x00000101, 0x00000a07 },
1551 { 161, 0x00022020, 0x000090be, 0x00000101, 0x00000a07 },
1552};
1553
1554static void rt2500usb_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
1555{
1556 struct hw_mode_spec *spec = &rt2x00dev->spec;
1557 u8 *txpower;
1558 unsigned int i;
1559
1560 /*
1561 * Initialize all hw fields.
1562 */
1563 rt2x00dev->hw->flags =
1564 IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE |
1565 IEEE80211_HW_RX_INCLUDES_FCS |
Johannes Berg4150c572007-09-17 01:29:23 -04001566 IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING;
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001567 rt2x00dev->hw->extra_tx_headroom = TXD_DESC_SIZE;
1568 rt2x00dev->hw->max_signal = MAX_SIGNAL;
1569 rt2x00dev->hw->max_rssi = MAX_RX_SSI;
1570 rt2x00dev->hw->queues = 2;
1571
1572 SET_IEEE80211_DEV(rt2x00dev->hw, &rt2x00dev_usb(rt2x00dev)->dev);
1573 SET_IEEE80211_PERM_ADDR(rt2x00dev->hw,
1574 rt2x00_eeprom_addr(rt2x00dev,
1575 EEPROM_MAC_ADDR_0));
1576
1577 /*
1578 * Convert tx_power array in eeprom.
1579 */
1580 txpower = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_START);
1581 for (i = 0; i < 14; i++)
1582 txpower[i] = TXPOWER_FROM_DEV(txpower[i]);
1583
1584 /*
1585 * Initialize hw_mode information.
1586 */
1587 spec->num_modes = 2;
1588 spec->num_rates = 12;
1589 spec->tx_power_a = NULL;
1590 spec->tx_power_bg = txpower;
1591 spec->tx_power_default = DEFAULT_TXPOWER;
1592
1593 if (rt2x00_rf(&rt2x00dev->chip, RF2522)) {
1594 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2522);
1595 spec->channels = rf_vals_bg_2522;
1596 } else if (rt2x00_rf(&rt2x00dev->chip, RF2523)) {
1597 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2523);
1598 spec->channels = rf_vals_bg_2523;
1599 } else if (rt2x00_rf(&rt2x00dev->chip, RF2524)) {
1600 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2524);
1601 spec->channels = rf_vals_bg_2524;
1602 } else if (rt2x00_rf(&rt2x00dev->chip, RF2525)) {
1603 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2525);
1604 spec->channels = rf_vals_bg_2525;
1605 } else if (rt2x00_rf(&rt2x00dev->chip, RF2525E)) {
1606 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2525e);
1607 spec->channels = rf_vals_bg_2525e;
1608 } else if (rt2x00_rf(&rt2x00dev->chip, RF5222)) {
1609 spec->num_channels = ARRAY_SIZE(rf_vals_5222);
1610 spec->channels = rf_vals_5222;
1611 spec->num_modes = 3;
1612 }
1613}
1614
1615static int rt2500usb_probe_hw(struct rt2x00_dev *rt2x00dev)
1616{
1617 int retval;
1618
1619 /*
1620 * Allocate eeprom data.
1621 */
1622 retval = rt2500usb_validate_eeprom(rt2x00dev);
1623 if (retval)
1624 return retval;
1625
1626 retval = rt2500usb_init_eeprom(rt2x00dev);
1627 if (retval)
1628 return retval;
1629
1630 /*
1631 * Initialize hw specifications.
1632 */
1633 rt2500usb_probe_hw_mode(rt2x00dev);
1634
1635 /*
Ivo van Doorn181d6902008-02-05 16:42:23 -05001636 * This device requires the atim queue
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001637 */
Ivo van Doorn181d6902008-02-05 16:42:23 -05001638 __set_bit(DRIVER_REQUIRE_ATIM_QUEUE, &rt2x00dev->flags);
1639 __set_bit(DRIVER_REQUIRE_BEACON_GUARD, &rt2x00dev->flags);
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001640
1641 /*
1642 * Set the rssi offset.
1643 */
1644 rt2x00dev->rssi_offset = DEFAULT_RSSI_OFFSET;
1645
1646 return 0;
1647}
1648
1649/*
1650 * IEEE80211 stack callback functions.
1651 */
Johannes Berg4150c572007-09-17 01:29:23 -04001652static void rt2500usb_configure_filter(struct ieee80211_hw *hw,
1653 unsigned int changed_flags,
1654 unsigned int *total_flags,
1655 int mc_count,
1656 struct dev_addr_list *mc_list)
1657{
1658 struct rt2x00_dev *rt2x00dev = hw->priv;
Johannes Berg4150c572007-09-17 01:29:23 -04001659 u16 reg;
1660
1661 /*
1662 * Mask off any flags we are going to ignore from
1663 * the total_flags field.
1664 */
1665 *total_flags &=
1666 FIF_ALLMULTI |
1667 FIF_FCSFAIL |
1668 FIF_PLCPFAIL |
1669 FIF_CONTROL |
1670 FIF_OTHER_BSS |
1671 FIF_PROMISC_IN_BSS;
1672
1673 /*
1674 * Apply some rules to the filters:
1675 * - Some filters imply different filters to be set.
1676 * - Some things we can't filter out at all.
Johannes Berg4150c572007-09-17 01:29:23 -04001677 */
1678 if (mc_count)
1679 *total_flags |= FIF_ALLMULTI;
Ivo van Doorn5886d0d2007-10-06 14:13:38 +02001680 if (*total_flags & FIF_OTHER_BSS ||
1681 *total_flags & FIF_PROMISC_IN_BSS)
Johannes Berg4150c572007-09-17 01:29:23 -04001682 *total_flags |= FIF_PROMISC_IN_BSS | FIF_OTHER_BSS;
Johannes Berg4150c572007-09-17 01:29:23 -04001683
1684 /*
1685 * Check if there is any work left for us.
1686 */
Ivo van Doorn3c4f2082008-01-06 23:40:49 +01001687 if (rt2x00dev->packet_filter == *total_flags)
Johannes Berg4150c572007-09-17 01:29:23 -04001688 return;
Ivo van Doorn3c4f2082008-01-06 23:40:49 +01001689 rt2x00dev->packet_filter = *total_flags;
Johannes Berg4150c572007-09-17 01:29:23 -04001690
1691 /*
1692 * When in atomic context, reschedule and let rt2x00lib
1693 * call this function again.
1694 */
1695 if (in_atomic()) {
1696 queue_work(rt2x00dev->hw->workqueue, &rt2x00dev->filter_work);
1697 return;
1698 }
1699
1700 /*
1701 * Start configuration steps.
1702 * Note that the version error will always be dropped
1703 * and broadcast frames will always be accepted since
1704 * there is no filter for it at this time.
1705 */
1706 rt2500usb_register_read(rt2x00dev, TXRX_CSR2, &reg);
1707 rt2x00_set_field16(&reg, TXRX_CSR2_DROP_CRC,
1708 !(*total_flags & FIF_FCSFAIL));
1709 rt2x00_set_field16(&reg, TXRX_CSR2_DROP_PHYSICAL,
1710 !(*total_flags & FIF_PLCPFAIL));
1711 rt2x00_set_field16(&reg, TXRX_CSR2_DROP_CONTROL,
1712 !(*total_flags & FIF_CONTROL));
1713 rt2x00_set_field16(&reg, TXRX_CSR2_DROP_NOT_TO_ME,
1714 !(*total_flags & FIF_PROMISC_IN_BSS));
1715 rt2x00_set_field16(&reg, TXRX_CSR2_DROP_TODS,
1716 !(*total_flags & FIF_PROMISC_IN_BSS));
1717 rt2x00_set_field16(&reg, TXRX_CSR2_DROP_VERSION_ERROR, 1);
1718 rt2x00_set_field16(&reg, TXRX_CSR2_DROP_MULTICAST,
1719 !(*total_flags & FIF_ALLMULTI));
1720 rt2x00_set_field16(&reg, TXRX_CSR2_DROP_BROADCAST, 0);
1721 rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
1722}
1723
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001724static int rt2500usb_beacon_update(struct ieee80211_hw *hw,
1725 struct sk_buff *skb,
1726 struct ieee80211_tx_control *control)
1727{
1728 struct rt2x00_dev *rt2x00dev = hw->priv;
Ivo van Doorn181d6902008-02-05 16:42:23 -05001729 struct usb_device *usb_dev = rt2x00dev_usb_dev(rt2x00dev);
Ivo van Doorn6bb40dd2008-02-03 15:49:59 +01001730 struct rt2x00_intf *intf = vif_to_intf(control->vif);
Ivo van Doorn181d6902008-02-05 16:42:23 -05001731 struct queue_entry_priv_usb_bcn *priv_bcn;
1732 struct skb_frame_desc *skbdesc;
Ivo van Doorndd9fa2d2007-10-06 14:15:46 +02001733 int pipe = usb_sndbulkpipe(usb_dev, 1);
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001734 int length;
1735
Ivo van Doorn6bb40dd2008-02-03 15:49:59 +01001736 if (unlikely(!intf->beacon))
1737 return -ENOBUFS;
1738
1739 priv_bcn = intf->beacon->priv_data;
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001740
1741 /*
Ivo van Doorn08992f72008-01-24 01:56:25 -08001742 * Add the descriptor in front of the skb.
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001743 */
Ivo van Doorn6bb40dd2008-02-03 15:49:59 +01001744 skb_push(skb, intf->beacon->queue->desc_size);
1745 memset(skb->data, 0, intf->beacon->queue->desc_size);
Ivo van Doornc22eb872007-10-06 14:18:22 +02001746
Ivo van Doorn08992f72008-01-24 01:56:25 -08001747 /*
1748 * Fill in skb descriptor
1749 */
Ivo van Doorn181d6902008-02-05 16:42:23 -05001750 skbdesc = get_skb_frame_desc(skb);
1751 memset(skbdesc, 0, sizeof(*skbdesc));
Ivo van Doorn6bb40dd2008-02-03 15:49:59 +01001752 skbdesc->data = skb->data + intf->beacon->queue->desc_size;
1753 skbdesc->data_len = skb->len - intf->beacon->queue->desc_size;
Ivo van Doorn181d6902008-02-05 16:42:23 -05001754 skbdesc->desc = skb->data;
Ivo van Doorn6bb40dd2008-02-03 15:49:59 +01001755 skbdesc->desc_len = intf->beacon->queue->desc_size;
1756 skbdesc->entry = intf->beacon;
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001757
Ivo van Doorn6bb40dd2008-02-03 15:49:59 +01001758 /*
Ivo van Doorn5957da42008-02-03 15:54:57 +01001759 * mac80211 doesn't provide the control->queue variable
1760 * for beacons. Set our own queue identification so
1761 * it can be used during descriptor initialization.
Ivo van Doorn6bb40dd2008-02-03 15:49:59 +01001762 */
Ivo van Doorn5957da42008-02-03 15:54:57 +01001763 control->queue = RT2X00_BCN_QUEUE_BEACON;
Ivo van Doorn08992f72008-01-24 01:56:25 -08001764 rt2x00lib_write_tx_desc(rt2x00dev, skb, control);
1765
1766 /*
1767 * USB devices cannot blindly pass the skb->len as the
1768 * length of the data to usb_fill_bulk_urb. Pass the skb
1769 * to the driver to determine what the length should be.
1770 */
Ivo van Doornb242e892007-11-15 23:41:31 +01001771 length = rt2500usb_get_tx_data_len(rt2x00dev, skb);
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001772
Ivo van Doorn181d6902008-02-05 16:42:23 -05001773 usb_fill_bulk_urb(priv_bcn->urb, usb_dev, pipe,
Ivo van Doorn6bb40dd2008-02-03 15:49:59 +01001774 skb->data, length, rt2500usb_beacondone,
1775 intf->beacon);
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001776
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001777 /*
1778 * Second we need to create the guardian byte.
1779 * We only need a single byte, so lets recycle
1780 * the 'flags' field we are not using for beacons.
1781 */
Ivo van Doorn181d6902008-02-05 16:42:23 -05001782 priv_bcn->guardian_data = 0;
1783 usb_fill_bulk_urb(priv_bcn->guardian_urb, usb_dev, pipe,
1784 &priv_bcn->guardian_data, 1, rt2500usb_beacondone,
Ivo van Doorn6bb40dd2008-02-03 15:49:59 +01001785 intf->beacon);
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001786
1787 /*
1788 * Send out the guardian byte.
1789 */
Ivo van Doorn181d6902008-02-05 16:42:23 -05001790 usb_submit_urb(priv_bcn->guardian_urb, GFP_ATOMIC);
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001791
1792 /*
1793 * Enable beacon generation.
1794 */
Ivo van Doorn6bb40dd2008-02-03 15:49:59 +01001795 rt2500usb_kick_tx_queue(rt2x00dev, control->queue);
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001796
1797 return 0;
1798}
1799
1800static const struct ieee80211_ops rt2500usb_mac80211_ops = {
1801 .tx = rt2x00mac_tx,
Johannes Berg4150c572007-09-17 01:29:23 -04001802 .start = rt2x00mac_start,
1803 .stop = rt2x00mac_stop,
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001804 .add_interface = rt2x00mac_add_interface,
1805 .remove_interface = rt2x00mac_remove_interface,
1806 .config = rt2x00mac_config,
1807 .config_interface = rt2x00mac_config_interface,
Johannes Berg4150c572007-09-17 01:29:23 -04001808 .configure_filter = rt2500usb_configure_filter,
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001809 .get_stats = rt2x00mac_get_stats,
Johannes Berg471b3ef2007-12-28 14:32:58 +01001810 .bss_info_changed = rt2x00mac_bss_info_changed,
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001811 .conf_tx = rt2x00mac_conf_tx,
1812 .get_tx_stats = rt2x00mac_get_tx_stats,
1813 .beacon_update = rt2500usb_beacon_update,
1814};
1815
1816static const struct rt2x00lib_ops rt2500usb_rt2x00_ops = {
1817 .probe_hw = rt2500usb_probe_hw,
1818 .initialize = rt2x00usb_initialize,
1819 .uninitialize = rt2x00usb_uninitialize,
Ivo van Doorn837e7f22008-01-06 23:41:45 +01001820 .init_rxentry = rt2x00usb_init_rxentry,
1821 .init_txentry = rt2x00usb_init_txentry,
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001822 .set_device_state = rt2500usb_set_device_state,
1823 .link_stats = rt2500usb_link_stats,
1824 .reset_tuner = rt2500usb_reset_tuner,
1825 .link_tuner = rt2500usb_link_tuner,
Ivo van Doorna9450b72008-02-03 15:53:40 +01001826 .led_brightness = rt2500usb_led_brightness,
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001827 .write_tx_desc = rt2500usb_write_tx_desc,
1828 .write_tx_data = rt2x00usb_write_tx_data,
Ivo van Doorndd9fa2d2007-10-06 14:15:46 +02001829 .get_tx_data_len = rt2500usb_get_tx_data_len,
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001830 .kick_tx_queue = rt2500usb_kick_tx_queue,
1831 .fill_rxdone = rt2500usb_fill_rxdone,
Ivo van Doorn6bb40dd2008-02-03 15:49:59 +01001832 .config_intf = rt2500usb_config_intf,
Ivo van Doorn5c58ee52007-10-06 13:34:52 +02001833 .config_preamble = rt2500usb_config_preamble,
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001834 .config = rt2500usb_config,
1835};
1836
Ivo van Doorn181d6902008-02-05 16:42:23 -05001837static const struct data_queue_desc rt2500usb_queue_rx = {
1838 .entry_num = RX_ENTRIES,
1839 .data_size = DATA_FRAME_SIZE,
1840 .desc_size = RXD_DESC_SIZE,
1841 .priv_size = sizeof(struct queue_entry_priv_usb_rx),
1842};
1843
1844static const struct data_queue_desc rt2500usb_queue_tx = {
1845 .entry_num = TX_ENTRIES,
1846 .data_size = DATA_FRAME_SIZE,
1847 .desc_size = TXD_DESC_SIZE,
1848 .priv_size = sizeof(struct queue_entry_priv_usb_tx),
1849};
1850
1851static const struct data_queue_desc rt2500usb_queue_bcn = {
1852 .entry_num = BEACON_ENTRIES,
1853 .data_size = MGMT_FRAME_SIZE,
1854 .desc_size = TXD_DESC_SIZE,
1855 .priv_size = sizeof(struct queue_entry_priv_usb_bcn),
1856};
1857
1858static const struct data_queue_desc rt2500usb_queue_atim = {
1859 .entry_num = ATIM_ENTRIES,
1860 .data_size = DATA_FRAME_SIZE,
1861 .desc_size = TXD_DESC_SIZE,
1862 .priv_size = sizeof(struct queue_entry_priv_usb_tx),
1863};
1864
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001865static const struct rt2x00_ops rt2500usb_ops = {
Ivo van Doorn23601572007-11-27 21:47:34 +01001866 .name = KBUILD_MODNAME,
Ivo van Doorn6bb40dd2008-02-03 15:49:59 +01001867 .max_sta_intf = 1,
1868 .max_ap_intf = 1,
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001869 .eeprom_size = EEPROM_SIZE,
1870 .rf_size = RF_SIZE,
Ivo van Doorn181d6902008-02-05 16:42:23 -05001871 .rx = &rt2500usb_queue_rx,
1872 .tx = &rt2500usb_queue_tx,
1873 .bcn = &rt2500usb_queue_bcn,
1874 .atim = &rt2500usb_queue_atim,
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001875 .lib = &rt2500usb_rt2x00_ops,
1876 .hw = &rt2500usb_mac80211_ops,
1877#ifdef CONFIG_RT2X00_LIB_DEBUGFS
1878 .debugfs = &rt2500usb_rt2x00debug,
1879#endif /* CONFIG_RT2X00_LIB_DEBUGFS */
1880};
1881
1882/*
1883 * rt2500usb module information.
1884 */
1885static struct usb_device_id rt2500usb_device_table[] = {
1886 /* ASUS */
1887 { USB_DEVICE(0x0b05, 0x1706), USB_DEVICE_DATA(&rt2500usb_ops) },
1888 { USB_DEVICE(0x0b05, 0x1707), USB_DEVICE_DATA(&rt2500usb_ops) },
1889 /* Belkin */
1890 { USB_DEVICE(0x050d, 0x7050), USB_DEVICE_DATA(&rt2500usb_ops) },
1891 { USB_DEVICE(0x050d, 0x7051), USB_DEVICE_DATA(&rt2500usb_ops) },
1892 { USB_DEVICE(0x050d, 0x705a), USB_DEVICE_DATA(&rt2500usb_ops) },
1893 /* Cisco Systems */
1894 { USB_DEVICE(0x13b1, 0x000d), USB_DEVICE_DATA(&rt2500usb_ops) },
1895 { USB_DEVICE(0x13b1, 0x0011), USB_DEVICE_DATA(&rt2500usb_ops) },
1896 { USB_DEVICE(0x13b1, 0x001a), USB_DEVICE_DATA(&rt2500usb_ops) },
1897 /* Conceptronic */
1898 { USB_DEVICE(0x14b2, 0x3c02), USB_DEVICE_DATA(&rt2500usb_ops) },
1899 /* D-LINK */
1900 { USB_DEVICE(0x2001, 0x3c00), USB_DEVICE_DATA(&rt2500usb_ops) },
1901 /* Gigabyte */
1902 { USB_DEVICE(0x1044, 0x8001), USB_DEVICE_DATA(&rt2500usb_ops) },
1903 { USB_DEVICE(0x1044, 0x8007), USB_DEVICE_DATA(&rt2500usb_ops) },
1904 /* Hercules */
1905 { USB_DEVICE(0x06f8, 0xe000), USB_DEVICE_DATA(&rt2500usb_ops) },
1906 /* Melco */
Ivo van Doorndb433fe2008-02-10 11:21:57 +01001907 { USB_DEVICE(0x0411, 0x005e), USB_DEVICE_DATA(&rt2500usb_ops) },
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001908 { USB_DEVICE(0x0411, 0x0066), USB_DEVICE_DATA(&rt2500usb_ops) },
1909 { USB_DEVICE(0x0411, 0x0067), USB_DEVICE_DATA(&rt2500usb_ops) },
1910 { USB_DEVICE(0x0411, 0x008b), USB_DEVICE_DATA(&rt2500usb_ops) },
1911 { USB_DEVICE(0x0411, 0x0097), USB_DEVICE_DATA(&rt2500usb_ops) },
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001912 /* MSI */
1913 { USB_DEVICE(0x0db0, 0x6861), USB_DEVICE_DATA(&rt2500usb_ops) },
1914 { USB_DEVICE(0x0db0, 0x6865), USB_DEVICE_DATA(&rt2500usb_ops) },
1915 { USB_DEVICE(0x0db0, 0x6869), USB_DEVICE_DATA(&rt2500usb_ops) },
1916 /* Ralink */
1917 { USB_DEVICE(0x148f, 0x1706), USB_DEVICE_DATA(&rt2500usb_ops) },
1918 { USB_DEVICE(0x148f, 0x2570), USB_DEVICE_DATA(&rt2500usb_ops) },
1919 { USB_DEVICE(0x148f, 0x2573), USB_DEVICE_DATA(&rt2500usb_ops) },
1920 { USB_DEVICE(0x148f, 0x9020), USB_DEVICE_DATA(&rt2500usb_ops) },
1921 /* Siemens */
1922 { USB_DEVICE(0x0681, 0x3c06), USB_DEVICE_DATA(&rt2500usb_ops) },
1923 /* SMC */
1924 { USB_DEVICE(0x0707, 0xee13), USB_DEVICE_DATA(&rt2500usb_ops) },
1925 /* Spairon */
1926 { USB_DEVICE(0x114b, 0x0110), USB_DEVICE_DATA(&rt2500usb_ops) },
1927 /* Trust */
1928 { USB_DEVICE(0x0eb0, 0x9020), USB_DEVICE_DATA(&rt2500usb_ops) },
1929 /* Zinwell */
1930 { USB_DEVICE(0x5a57, 0x0260), USB_DEVICE_DATA(&rt2500usb_ops) },
1931 { 0, }
1932};
1933
1934MODULE_AUTHOR(DRV_PROJECT);
1935MODULE_VERSION(DRV_VERSION);
1936MODULE_DESCRIPTION("Ralink RT2500 USB Wireless LAN driver.");
1937MODULE_SUPPORTED_DEVICE("Ralink RT2570 USB chipset based cards");
1938MODULE_DEVICE_TABLE(usb, rt2500usb_device_table);
1939MODULE_LICENSE("GPL");
1940
1941static struct usb_driver rt2500usb_driver = {
Ivo van Doorn23601572007-11-27 21:47:34 +01001942 .name = KBUILD_MODNAME,
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001943 .id_table = rt2500usb_device_table,
1944 .probe = rt2x00usb_probe,
1945 .disconnect = rt2x00usb_disconnect,
1946 .suspend = rt2x00usb_suspend,
1947 .resume = rt2x00usb_resume,
1948};
1949
1950static int __init rt2500usb_init(void)
1951{
1952 return usb_register(&rt2500usb_driver);
1953}
1954
1955static void __exit rt2500usb_exit(void)
1956{
1957 usb_deregister(&rt2500usb_driver);
1958}
1959
1960module_init(rt2500usb_init);
1961module_exit(rt2500usb_exit);