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04261faa3bd9dc21fd09982877aadad715cbaa91
[openwrt/svn-archive/archive.git] / package / rt2x00 / src / rt73usb.c
1 /*
2 Copyright (C) 2004 - 2007 rt2x00 SourceForge Project
3 <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: rt73usb
23 Abstract: rt73usb device specific routines.
24 Supported chipsets: rt2571W & rt2671.
25 */
26
27 /*
28 * Set enviroment defines for rt2x00.h
29 */
30 #define DRV_NAME "rt73usb"
31
32 #include <linux/kernel.h>
33 #include <linux/module.h>
34 #include <linux/version.h>
35 #include <linux/init.h>
36 #include <linux/usb.h>
37 #include <linux/delay.h>
38 #include <linux/etherdevice.h>
39
40 #include "rt2x00.h"
41 #include "rt2x00usb.h"
42 #include "rt73usb.h"
43
44 /*
45 * Register access.
46 * All access to the CSR registers will go through the methods
47 * rt73usb_register_read and rt73usb_register_write.
48 * BBP and RF register require indirect register access,
49 * and use the CSR registers BBPCSR and RFCSR to achieve this.
50 * These indirect registers work with busy bits,
51 * and we will try maximal REGISTER_BUSY_COUNT times to access
52 * the register while taking a REGISTER_BUSY_DELAY us delay
53 * between each attampt. When the busy bit is still set at that time,
54 * the access attempt is considered to have failed,
55 * and we will print an error.
56 */
57 static inline void rt73usb_register_read(
58 const struct rt2x00_dev *rt2x00dev,
59 const u16 offset, u32 *value)
60 {
61 __le32 reg;
62 rt2x00usb_vendor_request(
63 rt2x00dev, USB_MULTI_READ, USB_VENDOR_REQUEST_IN,
64 offset, 0x00, &reg, sizeof(u32), REGISTER_TIMEOUT);
65 *value = le32_to_cpu(reg);
66 }
67
68 static inline void rt73usb_register_multiread(
69 const struct rt2x00_dev *rt2x00dev,
70 const u16 offset, void *value, const u32 length)
71 {
72 rt2x00usb_vendor_request(
73 rt2x00dev, USB_MULTI_READ, USB_VENDOR_REQUEST_IN,
74 offset, 0x00, value, length,
75 REGISTER_TIMEOUT * (length / sizeof(u32)));
76 }
77
78 static inline void rt73usb_register_write(
79 const struct rt2x00_dev *rt2x00dev,
80 const u16 offset, u32 value)
81 {
82 __le32 reg = cpu_to_le32(value);
83 rt2x00usb_vendor_request(
84 rt2x00dev, USB_MULTI_WRITE, USB_VENDOR_REQUEST_OUT,
85 offset, 0x00, &reg, sizeof(u32), REGISTER_TIMEOUT);
86 }
87
88 static inline void rt73usb_register_multiwrite(
89 const struct rt2x00_dev *rt2x00dev,
90 const u16 offset, void *value, const u32 length)
91 {
92 rt2x00usb_vendor_request(
93 rt2x00dev, USB_MULTI_WRITE, USB_VENDOR_REQUEST_OUT,
94 offset, 0x00, value, length,
95 REGISTER_TIMEOUT * (length / sizeof(u32)));
96 }
97
98 static u32 rt73usb_bbp_check(const struct rt2x00_dev *rt2x00dev)
99 {
100 u32 reg;
101 unsigned int i;
102
103 for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
104 rt73usb_register_read(rt2x00dev, PHY_CSR3, &reg);
105 if (!rt2x00_get_field32(reg, PHY_CSR3_BUSY))
106 break;
107 udelay(REGISTER_BUSY_DELAY);
108 }
109
110 return reg;
111 }
112
113 static void rt73usb_bbp_write(const struct rt2x00_dev *rt2x00dev,
114 const u8 reg_id, const u8 value)
115 {
116 u32 reg;
117
118 /*
119 * Wait until the BBP becomes ready.
120 */
121 reg = rt73usb_bbp_check(rt2x00dev);
122 if (rt2x00_get_field32(reg, PHY_CSR3_BUSY)) {
123 ERROR(rt2x00dev, "PHY_CSR3 register busy. Write failed.\n");
124 return;
125 }
126
127 /*
128 * Write the data into the BBP.
129 */
130 reg = 0;
131 rt2x00_set_field32(&reg, PHY_CSR3_VALUE, value);
132 rt2x00_set_field32(&reg, PHY_CSR3_REGNUM, reg_id);
133 rt2x00_set_field32(&reg, PHY_CSR3_BUSY, 1);
134 rt2x00_set_field32(&reg, PHY_CSR3_READ_CONTROL, 0);
135
136 rt73usb_register_write(rt2x00dev, PHY_CSR3, reg);
137 }
138
139 static void rt73usb_bbp_read(const struct rt2x00_dev *rt2x00dev,
140 const u8 reg_id, u8 *value)
141 {
142 u32 reg;
143
144 /*
145 * Wait until the BBP becomes ready.
146 */
147 reg = rt73usb_bbp_check(rt2x00dev);
148 if (rt2x00_get_field32(reg, PHY_CSR3_BUSY)) {
149 ERROR(rt2x00dev, "PHY_CSR3 register busy. Read failed.\n");
150 return;
151 }
152
153 /*
154 * Write the request into the BBP.
155 */
156 reg =0;
157 rt2x00_set_field32(&reg, PHY_CSR3_REGNUM, reg_id);
158 rt2x00_set_field32(&reg, PHY_CSR3_BUSY, 1);
159 rt2x00_set_field32(&reg, PHY_CSR3_READ_CONTROL, 1);
160
161 rt73usb_register_write(rt2x00dev, PHY_CSR3, reg);
162
163 /*
164 * Wait until the BBP becomes ready.
165 */
166 reg = rt73usb_bbp_check(rt2x00dev);
167 if (rt2x00_get_field32(reg, PHY_CSR3_BUSY)) {
168 ERROR(rt2x00dev, "PHY_CSR3 register busy. Read failed.\n");
169 *value = 0xff;
170 return;
171 }
172
173 *value = rt2x00_get_field32(reg, PHY_CSR3_VALUE);
174 }
175
176 static void rt73usb_rf_write(const struct rt2x00_dev *rt2x00dev,
177 const u32 value)
178 {
179 u32 reg;
180 unsigned int i;
181
182 for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
183 rt73usb_register_read(rt2x00dev, PHY_CSR4, &reg);
184 if (!rt2x00_get_field32(reg, PHY_CSR4_BUSY))
185 goto rf_write;
186 udelay(REGISTER_BUSY_DELAY);
187 }
188
189 ERROR(rt2x00dev, "PHY_CSR4 register busy. Write failed.\n");
190 return;
191
192 rf_write:
193 reg = 0;
194 rt2x00_set_field32(&reg, PHY_CSR4_VALUE, value);
195 rt2x00_set_field32(&reg, PHY_CSR4_NUMBER_OF_BITS, 20);
196 rt2x00_set_field32(&reg, PHY_CSR4_IF_SELECT, 0);
197 rt2x00_set_field32(&reg, PHY_CSR4_BUSY, 1);
198
199 rt73usb_register_write(rt2x00dev, PHY_CSR4, reg);
200 }
201
202 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
203 #define CSR_OFFSET(__word) ( CSR_REG_BASE + ((__word) * sizeof(u32)) )
204
205 static void rt73usb_read_csr(struct rt2x00_dev *rt2x00dev,
206 const unsigned long word, void *data)
207 {
208 rt73usb_register_read(rt2x00dev, CSR_OFFSET(word), data);
209 }
210
211 static void rt73usb_write_csr(struct rt2x00_dev *rt2x00dev,
212 const unsigned long word, void *data)
213 {
214 rt73usb_register_write(rt2x00dev, CSR_OFFSET(word), *((u32*)data));
215 }
216
217 static void rt73usb_read_eeprom(struct rt2x00_dev *rt2x00dev,
218 const unsigned long word, void *data)
219 {
220 rt2x00_eeprom_read(rt2x00dev, word, data);
221 }
222
223 static void rt73usb_write_eeprom(struct rt2x00_dev *rt2x00dev,
224 const unsigned long word, void *data)
225 {
226 rt2x00_eeprom_write(rt2x00dev, word, *((u16*)data));
227 }
228
229 static void rt73usb_read_bbp(struct rt2x00_dev *rt2x00dev,
230 const unsigned long word, void *data)
231 {
232 rt73usb_bbp_read(rt2x00dev, word, data);
233 }
234
235 static void rt73usb_write_bbp(struct rt2x00_dev *rt2x00dev,
236 const unsigned long word, void *data)
237 {
238 rt73usb_bbp_write(rt2x00dev, word, *((u8*)data));
239 }
240
241 static const struct rt2x00debug rt73usb_rt2x00debug = {
242 .owner = THIS_MODULE,
243 .reg_csr = {
244 .read = rt73usb_read_csr,
245 .write = rt73usb_write_csr,
246 .word_size = sizeof(u32),
247 .word_count = CSR_REG_SIZE / sizeof(u32),
248 },
249 .reg_eeprom = {
250 .read = rt73usb_read_eeprom,
251 .write = rt73usb_write_eeprom,
252 .word_size = sizeof(u16),
253 .word_count = EEPROM_SIZE / sizeof(u16),
254 },
255 .reg_bbp = {
256 .read = rt73usb_read_bbp,
257 .write = rt73usb_write_bbp,
258 .word_size = sizeof(u8),
259 .word_count = BBP_SIZE / sizeof(u8),
260 },
261 };
262 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
263
264 /*
265 * Configuration handlers.
266 */
267 static void rt73usb_config_bssid(struct rt2x00_dev *rt2x00dev, u8 *bssid)
268 {
269 u32 reg[2];
270
271 memset(&reg, 0, sizeof(reg));
272 memcpy(&reg, bssid, ETH_ALEN);
273
274 rt2x00_set_field32(&reg[1], MAC_CSR5_BSS_ID_MASK, 3);
275
276 /*
277 * The BSSID is passed to us as an array of bytes,
278 * that array is little endian, so no need for byte ordering.
279 */
280 rt73usb_register_multiwrite(rt2x00dev, MAC_CSR4, &reg, sizeof(reg));
281 }
282
283 static void rt73usb_config_promisc(struct rt2x00_dev *rt2x00dev,
284 const int promisc)
285 {
286 u32 reg;
287
288 rt73usb_register_read(rt2x00dev, TXRX_CSR0, &reg);
289 rt2x00_set_field32(&reg, TXRX_CSR0_DROP_NOT_TO_ME, !promisc);
290 rt73usb_register_write(rt2x00dev, TXRX_CSR0, reg);
291 }
292
293 static void rt73usb_config_type(struct rt2x00_dev *rt2x00dev,
294 const int type)
295 {
296 u32 reg;
297
298 rt73usb_register_write(rt2x00dev, TXRX_CSR9, 0);
299
300 /*
301 * Apply hardware packet filter.
302 */
303 rt73usb_register_read(rt2x00dev, TXRX_CSR0, &reg);
304
305 if (!is_monitor_present(&rt2x00dev->interface) &&
306 (type == IEEE80211_IF_TYPE_IBSS || type == IEEE80211_IF_TYPE_STA))
307 rt2x00_set_field32(&reg, TXRX_CSR0_DROP_TO_DS, 1);
308 else
309 rt2x00_set_field32(&reg, TXRX_CSR0_DROP_TO_DS, 0);
310
311 rt2x00_set_field32(&reg, TXRX_CSR0_DROP_CRC, 1);
312 if (is_monitor_present(&rt2x00dev->interface)) {
313 rt2x00_set_field32(&reg, TXRX_CSR0_DROP_PHYSICAL, 0);
314 rt2x00_set_field32(&reg, TXRX_CSR0_DROP_CONTROL, 0);
315 rt2x00_set_field32(&reg, TXRX_CSR0_DROP_VERSION_ERROR, 0);
316 } else {
317 rt2x00_set_field32(&reg, TXRX_CSR0_DROP_PHYSICAL, 1);
318 rt2x00_set_field32(&reg, TXRX_CSR0_DROP_CONTROL, 1);
319 rt2x00_set_field32(&reg, TXRX_CSR0_DROP_VERSION_ERROR, 1);
320 }
321
322 rt2x00_set_field32(&reg, TXRX_CSR0_DROP_MULTICAST, 0);
323 rt2x00_set_field32(&reg, TXRX_CSR0_DROP_BORADCAST, 0);
324
325 rt73usb_register_write(rt2x00dev, TXRX_CSR0, reg);
326
327 /*
328 * Enable synchronisation.
329 */
330 rt73usb_register_read(rt2x00dev, TXRX_CSR9, &reg);
331 if (is_interface_present(&rt2x00dev->interface)) {
332 rt2x00_set_field32(&reg, TXRX_CSR9_TSF_TICKING, 1);
333 rt2x00_set_field32(&reg, TXRX_CSR9_TBTT_ENABLE, 1);
334 }
335
336 rt2x00_set_field32(&reg, TXRX_CSR9_BEACON_GEN, 0);
337 if (type == IEEE80211_IF_TYPE_IBSS || type == IEEE80211_IF_TYPE_AP)
338 rt2x00_set_field32(&reg, TXRX_CSR9_TSF_SYNC, 2);
339 else if (type == IEEE80211_IF_TYPE_STA)
340 rt2x00_set_field32(&reg, TXRX_CSR9_TSF_SYNC, 1);
341 else if (is_monitor_present(&rt2x00dev->interface) &&
342 !is_interface_present(&rt2x00dev->interface))
343 rt2x00_set_field32(&reg, TXRX_CSR9_TSF_SYNC, 0);
344
345 rt73usb_register_write(rt2x00dev, TXRX_CSR9, reg);
346 }
347
348 static void rt73usb_config_channel(struct rt2x00_dev *rt2x00dev,
349 const int value, const int channel, const int txpower)
350 {
351 u8 reg = 0;
352 u32 rf1 = rt2x00dev->rf1;
353 u32 rf2 = value;
354 u32 rf3 = rt2x00dev->rf3;
355 u32 rf4 = 0;
356
357 if (rt2x00_rf(&rt2x00dev->chip, RF5225) ||
358 rt2x00_rf(&rt2x00dev->chip, RF2527))
359 rf2 |= 0x00004000;
360
361 if (rt2x00_rf(&rt2x00dev->chip, RF5225)) {
362 if (channel <= 14)
363 rf3 = 0x00068455;
364 else if (channel >= 36 && channel <= 48)
365 rf3 = 0x0009be55;
366 else if (channel >= 52 && channel <= 64)
367 rf3 = 0x0009ae55;
368 else if (channel >= 100 && channel <= 112)
369 rf3 = 0x000bae55;
370 else
371 rf3 = 0x000bbe55;
372 }
373
374 if (channel < 14) {
375 if (channel & 0x01)
376 rf4 = 0x000fea0b;
377 else
378 rf4 = 0x000fea1f;
379 } else if (channel == 14) {
380 rf4 = 0x000fea13;
381 } else {
382 switch (channel) {
383 case 36:
384 case 56:
385 case 116:
386 case 136:
387 rf4 = 0x000fea23;
388 break;
389 case 40:
390 case 60:
391 case 100:
392 case 120:
393 case 140:
394 rf4 = 0x000fea03;
395 break;
396 case 44:
397 case 64:
398 case 104:
399 case 124:
400 rf4 = 0x000fea0b;
401 break;
402 case 48:
403 case 108:
404 case 128:
405 rf4 = 0x000fea13;
406 break;
407 case 52:
408 case 112:
409 case 132:
410 rf4 = 0x000fea1b;
411 break;
412 case 149:
413 rf4 = 0x000fea1f;
414 break;
415 case 153:
416 rf4 = 0x000fea27;
417 break;
418 case 157:
419 rf4 = 0x000fea07;
420 break;
421 case 161:
422 rf4 = 0x000fea0f;
423 break;
424 case 165:
425 rf4 = 0x000fea17;
426 break;
427 }
428 }
429
430 if (rt2x00_rf(&rt2x00dev->chip, RF2527) ||
431 rt2x00_rf(&rt2x00dev->chip, RF5225))
432 rf4 |= 0x00010000;
433
434 /*
435 * Set TXpower.
436 */
437 rt2x00_set_field32(&rf3, RF3_TXPOWER, TXPOWER_TO_DEV(txpower));
438
439 /*
440 * Set Frequency offset.
441 */
442 rt2x00_set_field32(&rf4, RF4_FREQ_OFFSET, rt2x00dev->freq_offset);
443
444 rt73usb_bbp_read(rt2x00dev, 3, &reg);
445 if (rt2x00_rf(&rt2x00dev->chip, RF5225) ||
446 rt2x00_rf(&rt2x00dev->chip, RF2527))
447 reg &= ~0x01;
448 else
449 reg |= 0x01;
450 rt73usb_bbp_write(rt2x00dev, 3, reg);
451
452 rt73usb_rf_write(rt2x00dev, rf1);
453 rt73usb_rf_write(rt2x00dev, rf2);
454 rt73usb_rf_write(rt2x00dev, rf3 & ~0x00000004);
455 rt73usb_rf_write(rt2x00dev, rf4);
456
457 rt73usb_rf_write(rt2x00dev, rf1);
458 rt73usb_rf_write(rt2x00dev, rf2);
459 rt73usb_rf_write(rt2x00dev, rf3 | 0x00000004);
460 rt73usb_rf_write(rt2x00dev, rf4);
461
462 rt73usb_rf_write(rt2x00dev, rf1);
463 rt73usb_rf_write(rt2x00dev, rf2);
464 rt73usb_rf_write(rt2x00dev, rf3 & ~0x00000004);
465 rt73usb_rf_write(rt2x00dev, rf4);
466
467 msleep(1);
468
469 /*
470 * Update rf fields
471 */
472 rt2x00dev->rf1 = rf1;
473 rt2x00dev->rf2 = rf2;
474 rt2x00dev->rf3 = rf3;
475 rt2x00dev->rf4 = rf4;
476 rt2x00dev->tx_power = txpower;
477 }
478
479 static void rt73usb_config_txpower(struct rt2x00_dev *rt2x00dev,
480 const int txpower)
481 {
482 rt2x00_set_field32(&rt2x00dev->rf3, RF3_TXPOWER,
483 TXPOWER_TO_DEV(txpower));
484
485 rt73usb_rf_write(rt2x00dev, rt2x00dev->rf1);
486 rt73usb_rf_write(rt2x00dev, rt2x00dev->rf2);
487 rt73usb_rf_write(rt2x00dev, rt2x00dev->rf3 & ~0x00000004);
488 rt73usb_rf_write(rt2x00dev, rt2x00dev->rf4);
489
490 rt73usb_rf_write(rt2x00dev, rt2x00dev->rf1);
491 rt73usb_rf_write(rt2x00dev, rt2x00dev->rf2);
492 rt73usb_rf_write(rt2x00dev, rt2x00dev->rf3 | 0x00000004);
493 rt73usb_rf_write(rt2x00dev, rt2x00dev->rf4);
494
495 rt73usb_rf_write(rt2x00dev, rt2x00dev->rf1);
496 rt73usb_rf_write(rt2x00dev, rt2x00dev->rf2);
497 rt73usb_rf_write(rt2x00dev, rt2x00dev->rf3 & ~0x00000004);
498 rt73usb_rf_write(rt2x00dev, rt2x00dev->rf4);
499 }
500
501 static void rt73usb_config_antenna(struct rt2x00_dev *rt2x00dev,
502 const int antenna_tx, const int antenna_rx)
503 {
504 u32 reg;
505 u8 r3;
506 u8 r4;
507 u8 r77;
508
509 rt73usb_register_read(rt2x00dev, PHY_CSR0, &reg);
510
511 if (rt2x00dev->curr_hwmode == HWMODE_A) {
512 if (test_bit(CONFIG_EXTERNAL_LNA, &rt2x00dev->flags)) {
513 rt73usb_bbp_write(rt2x00dev, 17, 0x38);
514 rt73usb_bbp_write(rt2x00dev, 96, 0x78);
515 rt73usb_bbp_write(rt2x00dev, 104, 0x48);
516 rt73usb_bbp_write(rt2x00dev, 75, 0x80);
517 rt73usb_bbp_write(rt2x00dev, 86, 0x80);
518 rt73usb_bbp_write(rt2x00dev, 88, 0x80);
519 } else {
520 rt73usb_bbp_write(rt2x00dev, 17, 0x28);
521 rt73usb_bbp_write(rt2x00dev, 96, 0x58);
522 rt73usb_bbp_write(rt2x00dev, 104, 0x38);
523 rt73usb_bbp_write(rt2x00dev, 75, 0xfe);
524 rt73usb_bbp_write(rt2x00dev, 86, 0xfe);
525 rt73usb_bbp_write(rt2x00dev, 88, 0xfe);
526 }
527 rt73usb_bbp_write(rt2x00dev, 35, 0x60);
528 rt73usb_bbp_write(rt2x00dev, 97, 0x58);
529 rt73usb_bbp_write(rt2x00dev, 98, 0x58);
530
531 rt2x00_set_field32(&reg, PHY_CSR0_PA_PE_BG, 0);
532 rt2x00_set_field32(&reg, PHY_CSR0_PA_PE_A, 1);
533 } else {
534 if (test_bit(CONFIG_EXTERNAL_LNA, &rt2x00dev->flags)) {
535 rt73usb_bbp_write(rt2x00dev, 17, 0x30);
536 rt73usb_bbp_write(rt2x00dev, 96, 0x68);
537 rt73usb_bbp_write(rt2x00dev, 104, 0x3c);
538 rt73usb_bbp_write(rt2x00dev, 75, 0x80);
539 rt73usb_bbp_write(rt2x00dev, 86, 0x80);
540 rt73usb_bbp_write(rt2x00dev, 88, 0x80);
541 } else {
542 rt73usb_bbp_write(rt2x00dev, 17, 0x20);
543 rt73usb_bbp_write(rt2x00dev, 96, 0x48);
544 rt73usb_bbp_write(rt2x00dev, 104, 0x2c);
545 rt73usb_bbp_write(rt2x00dev, 75, 0xfe);
546 rt73usb_bbp_write(rt2x00dev, 86, 0xfe);
547 rt73usb_bbp_write(rt2x00dev, 88, 0xfe);
548 }
549 rt73usb_bbp_write(rt2x00dev, 35, 0x50);
550 rt73usb_bbp_write(rt2x00dev, 97, 0x48);
551 rt73usb_bbp_write(rt2x00dev, 98, 0x48);
552
553 rt2x00_set_field32(&reg, PHY_CSR0_PA_PE_BG, 1);
554 rt2x00_set_field32(&reg, PHY_CSR0_PA_PE_A, 0);
555 }
556
557 rt73usb_register_write(rt2x00dev, PHY_CSR0, reg);
558
559 rt73usb_bbp_read(rt2x00dev, 3, &r3);
560 rt73usb_bbp_read(rt2x00dev, 4, &r4);
561 rt73usb_bbp_read(rt2x00dev, 77, &r77);
562
563 rt2x00_set_field8(&r3, BBP_R3_SMART_MODE, 0);
564
565 if (rt2x00_rf(&rt2x00dev->chip, RF5226) ||
566 rt2x00_rf(&rt2x00dev->chip, RF5225)) {
567 if (antenna_rx == ANTENNA_DIVERSITY) {
568 rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 2);
569 if (rt2x00dev->curr_hwmode != HWMODE_A)
570 rt2x00_set_field8(&r4, BBP_R4_RX_BG_MODE, 1);
571 rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END,
572 test_bit(CONFIG_FRAME_TYPE, &rt2x00dev->flags));
573 } else if (antenna_rx == ANTENNA_A) {
574 rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 1);
575 rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END,
576 test_bit(CONFIG_FRAME_TYPE, &rt2x00dev->flags));
577 if (rt2x00dev->curr_hwmode == HWMODE_A)
578 rt2x00_set_field8(&r77, BBP_R77_PAIR, 0);
579 else
580 rt2x00_set_field8(&r77, BBP_R77_PAIR, 3);
581 rt73usb_bbp_write(rt2x00dev, 77, r77);
582 } else if (antenna_rx == ANTENNA_B) {
583 rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 1);
584 rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END,
585 test_bit(CONFIG_FRAME_TYPE, &rt2x00dev->flags));
586 if (rt2x00dev->curr_hwmode == HWMODE_A)
587 rt2x00_set_field8(&r77, BBP_R77_PAIR, 3);
588 else
589 rt2x00_set_field8(&r77, BBP_R77_PAIR, 0);
590 rt73usb_bbp_write(rt2x00dev, 77, r77);
591 }
592 } else if (rt2x00_rf(&rt2x00dev->chip, RF2528) ||
593 rt2x00_rf(&rt2x00dev->chip, RF2527)) {
594 if (antenna_rx == ANTENNA_DIVERSITY) {
595 rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 2);
596 rt2x00_set_field8(&r4, BBP_R4_RX_BG_MODE, 1);
597 rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END,
598 test_bit(CONFIG_FRAME_TYPE, &rt2x00dev->flags));
599 } else if (antenna_rx == ANTENNA_A) {
600 rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 1);
601 rt2x00_set_field8(&r4, BBP_R4_RX_BG_MODE, 1);
602 rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END,
603 test_bit(CONFIG_FRAME_TYPE, &rt2x00dev->flags));
604 rt2x00_set_field8(&r77, BBP_R77_PAIR, 3);
605 rt73usb_bbp_write(rt2x00dev, 77, r77);
606 } else if (antenna_rx == ANTENNA_B) {
607 rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 1);
608 rt2x00_set_field8(&r4, BBP_R4_RX_BG_MODE, 1);
609 rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END,
610 test_bit(CONFIG_FRAME_TYPE, &rt2x00dev->flags));
611 rt2x00_set_field8(&r77, BBP_R77_PAIR, 0);
612 }
613 }
614
615 rt73usb_bbp_write(rt2x00dev, 3, r3);
616 rt73usb_bbp_write(rt2x00dev, 4, r4);
617 }
618
619 static void rt73usb_config_duration(struct rt2x00_dev *rt2x00dev,
620 const int short_slot_time, const int beacon_int)
621 {
622 u32 reg;
623
624 rt73usb_register_read(rt2x00dev, MAC_CSR9, &reg);
625 rt2x00_set_field32(&reg, MAC_CSR9_SLOT_TIME,
626 short_slot_time ? SHORT_SLOT_TIME : SLOT_TIME);
627 rt73usb_register_write(rt2x00dev, MAC_CSR9, reg);
628
629 rt73usb_register_read(rt2x00dev, MAC_CSR8, &reg);
630 rt2x00_set_field32(&reg, MAC_CSR8_SIFS, SIFS);
631 rt2x00_set_field32(&reg, MAC_CSR8_SIFS_AFTER_RX_OFDM, 3);
632 rt2x00_set_field32(&reg, MAC_CSR8_EIFS, EIFS);
633 rt73usb_register_write(rt2x00dev, MAC_CSR8, reg);
634
635 rt73usb_register_read(rt2x00dev, TXRX_CSR0, &reg);
636 rt2x00_set_field32(&reg, TXRX_CSR0_TSF_OFFSET, IEEE80211_HEADER);
637 rt73usb_register_write(rt2x00dev, TXRX_CSR0, reg);
638
639 rt73usb_register_read(rt2x00dev, TXRX_CSR4, &reg);
640 rt2x00_set_field32(&reg, TXRX_CSR4_AUTORESPOND_ENABLE, 1);
641 rt73usb_register_write(rt2x00dev, TXRX_CSR4, reg);
642
643 rt73usb_register_read(rt2x00dev, TXRX_CSR9, &reg);
644 rt2x00_set_field32(&reg, TXRX_CSR9_BEACON_INTERVAL, beacon_int * 16);
645 rt73usb_register_write(rt2x00dev, TXRX_CSR9, reg);
646 }
647
648 static void rt73usb_config_rate(struct rt2x00_dev *rt2x00dev, const int rate)
649 {
650 struct ieee80211_conf *conf = &rt2x00dev->hw->conf;
651 u32 reg;
652 u32 value;
653 u32 preamble;
654
655 preamble = DEVICE_GET_RATE_FIELD(rate, PREAMBLE)
656 ? SHORT_PREAMBLE : PREAMBLE;
657
658 reg = DEVICE_GET_RATE_FIELD(rate, RATEMASK) & DEV_BASIC_RATE;
659
660 rt73usb_register_write(rt2x00dev, TXRX_CSR5, reg);
661
662 rt73usb_register_read(rt2x00dev, TXRX_CSR0, &reg);
663 value = ((conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME) ?
664 SHORT_DIFS : DIFS) +
665 PLCP + preamble + get_duration(ACK_SIZE, 10);
666 rt2x00_set_field32(&reg, TXRX_CSR0_RX_ACK_TIMEOUT, value);
667 rt73usb_register_write(rt2x00dev, TXRX_CSR0, reg);
668
669 rt73usb_register_read(rt2x00dev, TXRX_CSR4, &reg);
670 if (preamble == SHORT_PREAMBLE)
671 rt2x00_set_field32(&reg, TXRX_CSR4_AUTORESPOND_PREAMBLE, 1);
672 else
673 rt2x00_set_field32(&reg, TXRX_CSR4_AUTORESPOND_PREAMBLE, 0);
674 rt73usb_register_write(rt2x00dev, TXRX_CSR4, reg);
675 }
676
677 static void rt73usb_config_phymode(struct rt2x00_dev *rt2x00dev,
678 const int phymode)
679 {
680 struct ieee80211_hw_mode *mode;
681 struct ieee80211_rate *rate;
682
683 if (phymode == MODE_IEEE80211A)
684 rt2x00dev->curr_hwmode = HWMODE_A;
685 else if (phymode == MODE_IEEE80211B)
686 rt2x00dev->curr_hwmode = HWMODE_B;
687 else
688 rt2x00dev->curr_hwmode = HWMODE_G;
689
690 mode = &rt2x00dev->hwmodes[rt2x00dev->curr_hwmode];
691 rate = &mode->rates[mode->num_rates - 1];
692
693 rt73usb_config_rate(rt2x00dev, rate->val2);
694 }
695
696 static void rt73usb_config_mac_addr(struct rt2x00_dev *rt2x00dev, u8 *addr)
697 {
698 u32 reg[2];
699
700 memset(&reg, 0, sizeof(reg));
701 memcpy(&reg, addr, ETH_ALEN);
702
703 rt2x00_set_field32(&reg[1], MAC_CSR3_UNICAST_TO_ME_MASK, 0xff);
704
705 /*
706 * The MAC address is passed to us as an array of bytes,
707 * that array is little endian, so no need for byte ordering.
708 */
709 rt73usb_register_multiwrite(rt2x00dev, MAC_CSR2, &reg, sizeof(reg));
710 }
711
712 /*
713 * LED functions.
714 */
715 static void rt73usb_enable_led(struct rt2x00_dev *rt2x00dev)
716 {
717 u32 reg;
718
719 rt73usb_register_read(rt2x00dev, MAC_CSR14, &reg);
720 rt2x00_set_field32(&reg, MAC_CSR14_ON_PERIOD, 70);
721 rt2x00_set_field32(&reg, MAC_CSR14_OFF_PERIOD, 30);
722 rt73usb_register_write(rt2x00dev, MAC_CSR14, reg);
723
724 rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_RADIO_STATUS, 1);
725 if (rt2x00dev->rx_status.phymode == MODE_IEEE80211A)
726 rt2x00_set_field16(
727 &rt2x00dev->led_reg, MCU_LEDCS_LINK_A_STATUS, 1);
728 else
729 rt2x00_set_field16(
730 &rt2x00dev->led_reg, MCU_LEDCS_LINK_BG_STATUS, 1);
731
732 rt2x00usb_vendor_request(
733 rt2x00dev, USB_LED_CONTROL, USB_VENDOR_REQUEST_OUT,
734 0x00, rt2x00dev->led_reg, NULL, 0, REGISTER_TIMEOUT);
735 }
736
737 static void rt73usb_disable_led(struct rt2x00_dev *rt2x00dev)
738 {
739 rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_RADIO_STATUS, 0);
740 rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_LINK_BG_STATUS, 0);
741 rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_LINK_A_STATUS, 0);
742
743 rt2x00usb_vendor_request(
744 rt2x00dev, USB_LED_CONTROL, USB_VENDOR_REQUEST_OUT,
745 0x00, rt2x00dev->led_reg, NULL, 0, REGISTER_TIMEOUT);
746 }
747
748 static void rt73usb_activity_led(struct rt2x00_dev *rt2x00dev, char rssi)
749 {
750 u32 led;
751
752 if (rt2x00dev->led_mode != LED_MODE_SIGNAL_STRENGTH)
753 return;
754
755 if (rssi <= 30)
756 led = 0;
757 else if (rssi <= 39)
758 led = 1;
759 else if (rssi <= 49)
760 led = 2;
761 else if (rssi <= 53)
762 led = 3;
763 else if (rssi <= 63)
764 led = 4;
765 else
766 led = 5;
767
768 rt2x00usb_vendor_request(
769 rt2x00dev, USB_LED_CONTROL, USB_VENDOR_REQUEST_OUT,
770 led, rt2x00dev->led_reg, NULL, 0, REGISTER_TIMEOUT);
771 }
772
773 /*
774 * Link tuning
775 */
776 static void rt73usb_link_tuner(struct rt2x00_dev *rt2x00dev, int rssi)
777 {
778 u32 reg;
779 u8 r17;
780 u8 up_bound;
781 u8 low_bound;
782
783 /*
784 * Update Led strength
785 */
786 rt73usb_activity_led(rt2x00dev, rssi);
787
788 rt73usb_bbp_read(rt2x00dev, 17, &r17);
789
790 /*
791 * Determine r17 bounds.
792 */
793 if (rt2x00dev->rx_status.phymode == MODE_IEEE80211A) {
794 low_bound = 0x28;
795 up_bound = 0x48;
796
797 if (test_bit(CONFIG_EXTERNAL_LNA, &rt2x00dev->flags)) {
798 low_bound += 0x10;
799 up_bound += 0x10;
800 }
801 } else {
802 if (rssi > -82) {
803 low_bound = 0x1c;
804 up_bound = 0x40;
805 } else if (rssi > -84) {
806 low_bound = 0x1c;
807 up_bound = 0x20;
808 } else {
809 low_bound = 0x1c;
810 up_bound = 0x1c;
811 }
812
813 if (test_bit(CONFIG_EXTERNAL_LNA, &rt2x00dev->flags)) {
814 low_bound += 0x14;
815 up_bound += 0x10;
816 }
817 }
818
819 /*
820 * Special big-R17 for very short distance
821 */
822 if (rssi > -35) {
823 if (r17 != 0x60)
824 rt73usb_bbp_write(rt2x00dev, 17, 0x60);
825 return;
826 }
827
828 /*
829 * Special big-R17 for short distance
830 */
831 if (rssi >= -58) {
832 if (r17 != up_bound)
833 rt73usb_bbp_write(rt2x00dev, 17, up_bound);
834 return;
835 }
836
837 /*
838 * Special big-R17 for middle-short distance
839 */
840 if (rssi >= -66) {
841 low_bound += 0x10;
842 if (r17 != low_bound)
843 rt73usb_bbp_write(rt2x00dev, 17, low_bound);
844 return;
845 }
846
847 /*
848 * Special mid-R17 for middle distance
849 */
850 if (rssi >= -74) {
851 if (r17 != (low_bound + 0x10))
852 rt73usb_bbp_write(rt2x00dev, 17, low_bound + 0x08);
853 return;
854 }
855
856 /*
857 * Special case: Change up_bound based on the rssi.
858 * Lower up_bound when rssi is weaker then -74 dBm.
859 */
860 up_bound -= 2 * (-74 - rssi);
861 if (low_bound > up_bound)
862 up_bound = low_bound;
863
864 if (r17 > up_bound) {
865 rt73usb_bbp_write(rt2x00dev, 17, up_bound);
866 return;
867 }
868
869 /*
870 * r17 does not yet exceed upper limit, continue and base
871 * the r17 tuning on the false CCA count.
872 */
873 rt73usb_register_read(rt2x00dev, STA_CSR1, &reg);
874 reg = rt2x00_get_field32(reg, STA_CSR1_FALSE_CCA_ERROR);
875 rt2x00dev->link.false_cca =
876 rt2x00_get_field32(reg, STA_CSR1_FALSE_CCA_ERROR);
877
878 if (rt2x00dev->link.false_cca > 512 && r17 < up_bound) {
879 r17 += 4;
880 if (r17 > up_bound)
881 r17 = up_bound;
882 rt73usb_bbp_write(rt2x00dev, 17, r17);
883 } else if (rt2x00dev->link.false_cca < 100 && r17 > low_bound) {
884 r17 -= 4;
885 if (r17 < low_bound)
886 r17 = low_bound;
887 rt73usb_bbp_write(rt2x00dev, 17, r17);
888 }
889 }
890
891 /*
892 * Firmware name function.
893 */
894 static char *rt73usb_get_fw_name(struct rt2x00_dev *rt2x00dev)
895 {
896 return FIRMWARE_RT2571;
897 }
898
899 /*
900 * Initialization functions.
901 */
902 static int rt73usb_load_firmware(struct rt2x00_dev *rt2x00dev, void *data,
903 const size_t len)
904 {
905 unsigned int i;
906 int status;
907 u32 reg;
908 char buf[64];
909 char *ptr = data;
910 int buflen;
911
912 /*
913 * Wait for stable hardware.
914 */
915 for (i = 0; i < 100; i++) {
916 rt73usb_register_read(rt2x00dev, MAC_CSR0, &reg);
917 if (reg)
918 break;
919 msleep(1);
920 }
921
922 if (!reg) {
923 ERROR(rt2x00dev, "Unstable hardware.\n");
924 return -EBUSY;
925 }
926
927 /*
928 * Write firmware to device.
929 */
930 for (i = 0; i < len; i += sizeof(buf)) {
931 buflen = min(len - i, sizeof(buf));
932 memcpy(buf, ptr, buflen);
933 rt73usb_register_multiwrite(rt2x00dev, FIRMWARE_IMAGE_BASE + i,
934 buf, buflen);
935 ptr += buflen;
936 }
937
938 /*
939 * Send firmware request to device to load firmware,
940 * we need to specify a long timeout time.
941 */
942 status = rt2x00usb_vendor_request(rt2x00dev, USB_DEVICE_MODE,
943 USB_VENDOR_REQUEST_OUT, 0x00, USB_MODE_FIRMWARE,
944 NULL, 0, REGISTER_TIMEOUT_FIRMWARE);
945 if (status < 0) {
946 ERROR(rt2x00dev, "Failed to write Firmware to device.\n");
947 return status;
948 }
949
950 rt73usb_disable_led(rt2x00dev);
951
952 return 0;
953 }
954
955 static void rt73usb_init_rxring(struct rt2x00_dev *rt2x00dev)
956 {
957 struct usb_device *usb_dev =
958 interface_to_usbdev(rt2x00dev_usb(rt2x00dev));
959 unsigned int i;
960
961 for (i = 0; i < rt2x00dev->rx->stats.limit; i++) {
962 usb_fill_bulk_urb(
963 rt2x00dev->rx->entry[i].priv,
964 usb_dev,
965 usb_rcvbulkpipe(usb_dev, 1),
966 rt2x00dev->rx->entry[i].skb->data,
967 rt2x00dev->rx->entry[i].skb->len,
968 rt73usb_interrupt_rxdone,
969 &rt2x00dev->rx->entry[i]);
970 }
971
972 rt2x00_ring_index_clear(rt2x00dev->rx);
973 }
974
975 static void rt73usb_init_txring(struct rt2x00_dev *rt2x00dev,
976 const int queue)
977 {
978 struct data_ring *ring = rt2x00_get_ring(rt2x00dev, queue);
979 unsigned int i;
980
981 for (i = 0; i < ring->stats.limit; i++)
982 ring->entry[i].flags = 0;
983
984 rt2x00_ring_index_clear(ring);
985 }
986
987 static int rt73usb_init_rings(struct rt2x00_dev *rt2x00dev)
988 {
989 rt73usb_init_rxring(rt2x00dev);
990 rt73usb_init_txring(rt2x00dev, IEEE80211_TX_QUEUE_DATA0);
991 rt73usb_init_txring(rt2x00dev, IEEE80211_TX_QUEUE_DATA1);
992 rt73usb_init_txring(rt2x00dev, IEEE80211_TX_QUEUE_DATA2);
993 rt73usb_init_txring(rt2x00dev, IEEE80211_TX_QUEUE_DATA3);
994 rt73usb_init_txring(rt2x00dev, IEEE80211_TX_QUEUE_DATA4);
995 rt73usb_init_txring(rt2x00dev, IEEE80211_TX_QUEUE_BEACON);
996
997 return 0;
998 }
999
1000 static int rt73usb_init_registers(struct rt2x00_dev *rt2x00dev)
1001 {
1002 u32 reg;
1003
1004 if (rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_AWAKE))
1005 return -EBUSY;
1006
1007 rt73usb_register_write(rt2x00dev, MAC_CSR10, 0x00000718);
1008
1009 rt73usb_register_write(rt2x00dev, TXRX_CSR0, 0x025eb032);
1010
1011 rt73usb_register_write(rt2x00dev, TXRX_CSR1, 0x9eaa9eaf);
1012 rt73usb_register_write(rt2x00dev, TXRX_CSR2, 0x8a8b8c8d);
1013 rt73usb_register_write(rt2x00dev, TXRX_CSR3, 0x00858687);
1014
1015 rt73usb_register_write(rt2x00dev, TXRX_CSR7, 0x2e31353b);
1016 rt73usb_register_write(rt2x00dev, TXRX_CSR8, 0x2a2a2a2c);
1017
1018 rt73usb_register_write(rt2x00dev, TXRX_CSR15, 0x0000000f);
1019
1020 rt73usb_register_write(rt2x00dev, MAC_CSR6, 0x00000fff);
1021
1022 rt73usb_register_write(rt2x00dev, MAC_CSR13, 0x00007f00);
1023
1024 rt73usb_register_write(rt2x00dev, SEC_CSR0, 0x00000000);
1025 rt73usb_register_write(rt2x00dev, SEC_CSR1, 0x00000000);
1026 rt73usb_register_write(rt2x00dev, SEC_CSR5, 0x00000000);
1027
1028 reg = 0x000023b0;
1029 if (rt2x00_rf(&rt2x00dev->chip, RF5225) ||
1030 rt2x00_rf(&rt2x00dev->chip, RF2527))
1031 rt2x00_set_field32(&reg, PHY_CSR1_RF_RPI, 1);
1032 rt73usb_register_write(rt2x00dev, PHY_CSR1, reg);
1033
1034 rt73usb_register_write(rt2x00dev, PHY_CSR5, 0x00040a06);
1035 rt73usb_register_write(rt2x00dev, PHY_CSR6, 0x00080606);
1036 rt73usb_register_write(rt2x00dev, PHY_CSR7, 0x00000408);
1037
1038 rt73usb_register_read(rt2x00dev, AC_TXOP_CSR0, &reg);
1039 rt2x00_set_field32(&reg, AC_TXOP_CSR0_AC0_TX_OP, 0);
1040 rt2x00_set_field32(&reg, AC_TXOP_CSR0_AC1_TX_OP, 0);
1041 rt73usb_register_write(rt2x00dev, AC_TXOP_CSR0, reg);
1042
1043 rt73usb_register_read(rt2x00dev, AC_TXOP_CSR1, &reg);
1044 rt2x00_set_field32(&reg, AC_TXOP_CSR1_AC2_TX_OP, 192);
1045 rt2x00_set_field32(&reg, AC_TXOP_CSR1_AC3_TX_OP, 48);
1046 rt73usb_register_write(rt2x00dev, AC_TXOP_CSR1, reg);
1047
1048 rt73usb_register_read(rt2x00dev, MAC_CSR9, &reg);
1049 rt2x00_set_field32(&reg, MAC_CSR9_CW_SELECT, 0);
1050 rt73usb_register_write(rt2x00dev, MAC_CSR9, reg);
1051
1052 rt73usb_register_read(rt2x00dev, TXRX_CSR0, &reg);
1053 rt2x00_set_field32(&reg, TXRX_CSR0_AUTO_TX_SEQ, 1);
1054 rt73usb_register_write(rt2x00dev, TXRX_CSR0, reg);
1055
1056 /*
1057 * We must clear the error counters.
1058 * These registers are cleared on read,
1059 * so we may pass a useless variable to store the value.
1060 */
1061 rt73usb_register_read(rt2x00dev, STA_CSR0, &reg);
1062 rt73usb_register_read(rt2x00dev, STA_CSR1, &reg);
1063 rt73usb_register_read(rt2x00dev, STA_CSR2, &reg);
1064
1065 /*
1066 * Reset MAC and BBP registers.
1067 */
1068 reg = 0;
1069 rt2x00_set_field32(&reg, MAC_CSR1_SOFT_RESET, 1);
1070 rt2x00_set_field32(&reg, MAC_CSR1_BBP_RESET, 1);
1071 rt73usb_register_write(rt2x00dev, MAC_CSR1, reg);
1072
1073 rt73usb_register_read(rt2x00dev, MAC_CSR1, &reg);
1074 rt2x00_set_field32(&reg, MAC_CSR1_SOFT_RESET, 0);
1075 rt2x00_set_field32(&reg, MAC_CSR1_BBP_RESET, 0);
1076 rt73usb_register_write(rt2x00dev, MAC_CSR1, reg);
1077
1078 rt73usb_register_read(rt2x00dev, MAC_CSR1, &reg);
1079 rt2x00_set_field32(&reg, MAC_CSR1_HOST_READY, 1);
1080 rt73usb_register_write(rt2x00dev, MAC_CSR1, reg);
1081
1082 return 0;
1083 }
1084
1085 static int rt73usb_init_bbp(struct rt2x00_dev *rt2x00dev)
1086 {
1087 unsigned int i;
1088 u16 eeprom;
1089 u8 reg_id;
1090 u8 value;
1091
1092 for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
1093 rt73usb_bbp_read(rt2x00dev, 0, &value);
1094 if ((value != 0xff) && (value != 0x00))
1095 goto continue_csr_init;
1096 NOTICE(rt2x00dev, "Waiting for BBP register.\n");
1097 udelay(REGISTER_BUSY_DELAY);
1098 }
1099
1100 ERROR(rt2x00dev, "BBP register access failed, aborting.\n");
1101 return -EACCES;
1102
1103 continue_csr_init:
1104 rt73usb_bbp_write(rt2x00dev, 3, 0x80);
1105 rt73usb_bbp_write(rt2x00dev, 15, 0x30);
1106 rt73usb_bbp_write(rt2x00dev, 17, 0x20);
1107 rt73usb_bbp_write(rt2x00dev, 21, 0xc8);
1108 rt73usb_bbp_write(rt2x00dev, 22, 0x38);
1109 rt73usb_bbp_write(rt2x00dev, 23, 0x06);
1110 rt73usb_bbp_write(rt2x00dev, 24, 0xfe);
1111 rt73usb_bbp_write(rt2x00dev, 25, 0x0a);
1112 rt73usb_bbp_write(rt2x00dev, 26, 0x0d);
1113 rt73usb_bbp_write(rt2x00dev, 32, 0x0b);
1114 rt73usb_bbp_write(rt2x00dev, 34, 0x12);
1115 rt73usb_bbp_write(rt2x00dev, 37, 0x07);
1116 rt73usb_bbp_write(rt2x00dev, 39, 0xf8);
1117 rt73usb_bbp_write(rt2x00dev, 41, 0x60);
1118 rt73usb_bbp_write(rt2x00dev, 53, 0x10);
1119 rt73usb_bbp_write(rt2x00dev, 54, 0x18);
1120 rt73usb_bbp_write(rt2x00dev, 60, 0x10);
1121 rt73usb_bbp_write(rt2x00dev, 61, 0x04);
1122 rt73usb_bbp_write(rt2x00dev, 62, 0x04);
1123 rt73usb_bbp_write(rt2x00dev, 75, 0xfe);
1124 rt73usb_bbp_write(rt2x00dev, 86, 0xfe);
1125 rt73usb_bbp_write(rt2x00dev, 88, 0xfe);
1126 rt73usb_bbp_write(rt2x00dev, 90, 0x0f);
1127 rt73usb_bbp_write(rt2x00dev, 99, 0x00);
1128 rt73usb_bbp_write(rt2x00dev, 102, 0x16);
1129 rt73usb_bbp_write(rt2x00dev, 107, 0x04);
1130
1131 DEBUG(rt2x00dev, "Start initialization from EEPROM...\n");
1132 for (i = 0; i < EEPROM_BBP_SIZE; i++) {
1133 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBP_START + i, &eeprom);
1134
1135 if (eeprom != 0xffff && eeprom != 0x0000) {
1136 reg_id = rt2x00_get_field16(eeprom, EEPROM_BBP_REG_ID);
1137 value = rt2x00_get_field16(eeprom, EEPROM_BBP_VALUE);
1138 DEBUG(rt2x00dev, "BBP: 0x%02x, value: 0x%02x.\n",
1139 reg_id, value);
1140 rt73usb_bbp_write(rt2x00dev, reg_id, value);
1141 }
1142 }
1143 DEBUG(rt2x00dev, "...End initialization from EEPROM.\n");
1144
1145 return 0;
1146 }
1147
1148 /*
1149 * Device state switch handlers.
1150 */
1151 static void rt73usb_toggle_rx(struct rt2x00_dev *rt2x00dev,
1152 enum dev_state state)
1153 {
1154 u32 reg;
1155
1156 rt73usb_register_read(rt2x00dev, TXRX_CSR0, &reg);
1157 rt2x00_set_field32(&reg, TXRX_CSR0_DISABLE_RX,
1158 state == STATE_RADIO_RX_OFF);
1159 rt73usb_register_write(rt2x00dev, TXRX_CSR0, reg);
1160 }
1161
1162 static int rt73usb_enable_radio(struct rt2x00_dev *rt2x00dev)
1163 {
1164 /*
1165 * Initialize all registers.
1166 */
1167 if (rt73usb_init_rings(rt2x00dev) ||
1168 rt73usb_init_registers(rt2x00dev) ||
1169 rt73usb_init_bbp(rt2x00dev)) {
1170 ERROR(rt2x00dev, "Register initialization failed.\n");
1171 return -EIO;
1172 }
1173
1174 rt2x00usb_enable_radio(rt2x00dev);
1175
1176 /*
1177 * Enable LED
1178 */
1179 rt73usb_enable_led(rt2x00dev);
1180
1181 return 0;
1182 }
1183
1184 static void rt73usb_disable_radio(struct rt2x00_dev *rt2x00dev)
1185 {
1186 /*
1187 * Disable LED
1188 */
1189 rt73usb_disable_led(rt2x00dev);
1190
1191 rt73usb_register_write(rt2x00dev, MAC_CSR10, 0x00001818);
1192
1193 /*
1194 * Disable synchronisation.
1195 */
1196 rt73usb_register_write(rt2x00dev, TXRX_CSR9, 0);
1197
1198 rt2x00usb_disable_radio(rt2x00dev);
1199 }
1200
1201 static int rt73usb_set_state(struct rt2x00_dev *rt2x00dev,
1202 enum dev_state state)
1203 {
1204 u32 reg;
1205 unsigned int i;
1206 char put_to_sleep;
1207 char current_state;
1208
1209 put_to_sleep = (state != STATE_AWAKE);
1210
1211 if (!put_to_sleep)
1212 rt2x00usb_vendor_request(rt2x00dev,
1213 USB_DEVICE_MODE, USB_VENDOR_REQUEST_OUT,
1214 0x00, USB_MODE_WAKEUP, NULL, 0, REGISTER_TIMEOUT);
1215
1216 rt73usb_register_read(rt2x00dev, MAC_CSR12, &reg);
1217 rt2x00_set_field32(&reg, MAC_CSR12_FORCE_WAKEUP, !put_to_sleep);
1218 rt2x00_set_field32(&reg, MAC_CSR12_PUT_TO_SLEEP, put_to_sleep);
1219 rt73usb_register_write(rt2x00dev, MAC_CSR12, reg);
1220
1221 if (put_to_sleep)
1222 rt2x00usb_vendor_request(rt2x00dev,
1223 USB_DEVICE_MODE, USB_VENDOR_REQUEST_OUT,
1224 0x00, USB_MODE_SLEEP, NULL, 0, REGISTER_TIMEOUT);
1225
1226 /*
1227 * Device is not guaranteed to be in the requested state yet.
1228 * We must wait until the register indicates that the
1229 * device has entered the correct state.
1230 */
1231 for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
1232 rt73usb_register_read(rt2x00dev, MAC_CSR12, &reg);
1233 current_state = rt2x00_get_field32(reg,
1234 MAC_CSR12_BBP_CURRENT_STATE);
1235 if (current_state == !put_to_sleep)
1236 return 0;
1237 msleep(10);
1238 }
1239
1240 NOTICE(rt2x00dev, "Device failed to enter state %d, "
1241 "current device state %d.\n", !put_to_sleep, current_state);
1242
1243 return -EBUSY;
1244 }
1245
1246 static int rt73usb_set_device_state(struct rt2x00_dev *rt2x00dev,
1247 enum dev_state state)
1248 {
1249 int retval = 0;
1250
1251 switch (state) {
1252 case STATE_RADIO_ON:
1253 retval = rt73usb_enable_radio(rt2x00dev);
1254 break;
1255 case STATE_RADIO_OFF:
1256 rt73usb_disable_radio(rt2x00dev);
1257 break;
1258 case STATE_RADIO_RX_ON:
1259 case STATE_RADIO_RX_OFF:
1260 rt73usb_toggle_rx(rt2x00dev, state);
1261 break;
1262 case STATE_DEEP_SLEEP:
1263 case STATE_SLEEP:
1264 case STATE_STANDBY:
1265 case STATE_AWAKE:
1266 retval = rt73usb_set_state(rt2x00dev, state);
1267 break;
1268 default:
1269 retval = -ENOTSUPP;
1270 break;
1271 }
1272
1273 return retval;
1274 }
1275
1276 /*
1277 * TX descriptor initialization
1278 */
1279 static void rt73usb_write_tx_desc(struct rt2x00_dev *rt2x00dev,
1280 struct data_entry *entry, struct data_desc *txd,
1281 struct data_entry_desc *desc, struct ieee80211_hdr *ieee80211hdr,
1282 unsigned int length, struct ieee80211_tx_control *control)
1283 {
1284 u32 word;
1285
1286 /*
1287 * Start writing the descriptor words.
1288 */
1289 rt2x00_desc_read(txd, 1, &word);
1290 rt2x00_set_field32(&word, TXD_W1_HOST_Q_ID, desc->queue);
1291 rt2x00_set_field32(&word, TXD_W1_AIFSN, entry->ring->tx_params.aifs);
1292 rt2x00_set_field32(&word, TXD_W1_CWMIN, entry->ring->tx_params.cw_min);
1293 rt2x00_set_field32(&word, TXD_W1_CWMAX, entry->ring->tx_params.cw_max);
1294 rt2x00_set_field32(&word, TXD_W1_IV_OFFSET, IEEE80211_HEADER);
1295 rt2x00_set_field32(&word, TXD_W1_HW_SEQUENCE, 1);
1296 rt2x00_desc_write(txd, 1, word);
1297
1298 rt2x00_desc_read(txd, 2, &word);
1299 rt2x00_set_field32(&word, TXD_W2_PLCP_SIGNAL, desc->signal);
1300 rt2x00_set_field32(&word, TXD_W2_PLCP_SERVICE, desc->service);
1301 rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_LOW, desc->length_low);
1302 rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_HIGH, desc->length_high);
1303 rt2x00_desc_write(txd, 2, word);
1304
1305 rt2x00_desc_read(txd, 5, &word);
1306 rt2x00_set_field32(&word, TXD_W5_TX_POWER,
1307 TXPOWER_TO_DEV(control->power_level));
1308 rt2x00_set_field32(&word, TXD_W5_WAITING_DMA_DONE_INT, 1);
1309 rt2x00_desc_write(txd, 5, word);
1310
1311 rt2x00_desc_read(txd, 0, &word);
1312 rt2x00_set_field32(&word, TXD_W0_VALID, 1);
1313 rt2x00_set_field32(&word, TXD_W0_MORE_FRAG,
1314 test_bit(ENTRY_TXD_MORE_FRAG, &entry->flags));
1315 rt2x00_set_field32(&word, TXD_W0_ACK,
1316 test_bit(ENTRY_TXD_REQ_ACK, &entry->flags));
1317 rt2x00_set_field32(&word, TXD_W0_TIMESTAMP,
1318 test_bit(ENTRY_TXD_REQ_TIMESTAMP, &entry->flags));
1319 rt2x00_set_field32(&word, TXD_W0_OFDM,
1320 test_bit(ENTRY_TXD_OFDM_RATE, &entry->flags));
1321 rt2x00_set_field32(&word, TXD_W0_IFS, desc->ifs);
1322 rt2x00_set_field32(&word, TXD_W0_RETRY_MODE, 0);
1323 rt2x00_set_field32(&word, TXD_W0_TKIP_MIC, 0);
1324 rt2x00_set_field32(&word, TXD_W0_DATABYTE_COUNT, length);
1325 rt2x00_set_field32(&word, TXD_W0_CIPHER_ALG, CIPHER_NONE);
1326 rt2x00_desc_write(txd, 0, word);
1327 }
1328
1329 /*
1330 * TX data initialization
1331 */
1332 static void rt73usb_kick_tx_queue(struct rt2x00_dev *rt2x00dev, int queue)
1333 {
1334 u32 reg;
1335
1336 if (queue != IEEE80211_TX_QUEUE_BEACON)
1337 return;
1338
1339 rt73usb_register_read(rt2x00dev, TXRX_CSR9, &reg);
1340 if (!rt2x00_get_field32(reg, TXRX_CSR9_BEACON_GEN)) {
1341 rt2x00_set_field32(&reg, TXRX_CSR9_BEACON_GEN, 1);
1342 rt73usb_register_write(rt2x00dev, TXRX_CSR9, reg);
1343 }
1344 }
1345
1346 /*
1347 * Interrupt functions.
1348 */
1349 static void rt73usb_interrupt_rxdone(struct urb *urb)
1350 {
1351 struct data_entry *entry = (struct data_entry*)urb->context;
1352 struct data_ring *ring = entry->ring;
1353 struct rt2x00_dev *rt2x00dev = ring->rt2x00dev;
1354 struct data_desc *rxd = (struct data_desc*)entry->skb->data;
1355 u32 word0;
1356 u32 word1;
1357 int signal;
1358 int rssi;
1359 int ofdm;
1360 u16 size;
1361
1362 if (!test_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags) ||
1363 !__test_and_clear_bit(ENTRY_OWNER_NIC, &entry->flags))
1364 return;
1365
1366 /*
1367 * Check if the received data is simply too small
1368 * to be actually valid, or if the urb is signaling
1369 * a problem.
1370 */
1371 if (urb->actual_length < entry->ring->desc_size || urb->status)
1372 goto skip_entry;
1373
1374 rt2x00_desc_read(rxd, 0, &word0);
1375 rt2x00_desc_read(rxd, 1, &word1);
1376
1377 /*
1378 * TODO: Don't we need to keep statistics
1379 * updated about events like CRC and physical errors?
1380 */
1381 if (rt2x00_get_field32(word0, RXD_W0_CRC) ||
1382 rt2x00_get_field32(word0, RXD_W0_CIPHER_ERROR))
1383 goto skip_entry;
1384
1385 /*
1386 * Obtain the status about this packet.
1387 */
1388 size = rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT);
1389 signal = rt2x00_get_field32(word1, RXD_W1_SIGNAL);
1390 rssi = rt2x00_get_field32(word1, RXD_W1_RSSI);
1391 ofdm = rt2x00_get_field32(word0, RXD_W0_OFDM);
1392
1393 /*
1394 * Trim the skb_buffer to only contain the valid
1395 * frame data (so ignore the device's descriptor).
1396 */
1397 skb_pull(entry->skb, ring->desc_size);
1398 skb_trim(entry->skb, size);
1399
1400 /*
1401 * Send the packet to upper layer, and update urb.
1402 */
1403 rt2x00lib_rxdone(entry, NULL, ring->data_size + ring->desc_size,
1404 signal, rssi, ofdm);
1405 urb->transfer_buffer = entry->skb->data;
1406 urb->transfer_buffer_length = entry->skb->len;
1407
1408 skip_entry:
1409 if (test_bit(DEVICE_ENABLED_RADIO, &ring->rt2x00dev->flags)) {
1410 __set_bit(ENTRY_OWNER_NIC, &entry->flags);
1411 usb_submit_urb(urb, GFP_ATOMIC);
1412 }
1413
1414 rt2x00_ring_index_inc(ring);
1415 }
1416
1417 /*
1418 * Device initialization functions.
1419 */
1420 static int rt73usb_alloc_eeprom(struct rt2x00_dev *rt2x00dev)
1421 {
1422 u16 word;
1423
1424 /*
1425 * Allocate the eeprom memory, check the eeprom width
1426 * and copy the entire eeprom into this allocated memory.
1427 */
1428 rt2x00dev->eeprom = kzalloc(EEPROM_SIZE, GFP_KERNEL);
1429 if (!rt2x00dev->eeprom)
1430 return -ENOMEM;
1431
1432 rt2x00usb_vendor_request(
1433 rt2x00dev, USB_EEPROM_READ, USB_VENDOR_REQUEST_IN,
1434 EEPROM_BASE, 0x00, rt2x00dev->eeprom, EEPROM_SIZE,
1435 REGISTER_TIMEOUT * (EEPROM_SIZE / sizeof(u16)));
1436
1437 /*
1438 * Start validation of the data that has been read.
1439 */
1440 rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &word);
1441 if (word == 0xffff) {
1442 rt2x00_set_field16(&word, EEPROM_ANTENNA_NUM, 2);
1443 rt2x00_set_field16(&word, EEPROM_ANTENNA_TX_DEFAULT, 2);
1444 rt2x00_set_field16(&word, EEPROM_ANTENNA_RX_DEFAULT, 2);
1445 rt2x00_set_field16(&word, EEPROM_ANTENNA_FRAME_TYPE, 0);
1446 rt2x00_set_field16(&word, EEPROM_ANTENNA_DYN_TXAGC, 0);
1447 rt2x00_set_field16(&word, EEPROM_ANTENNA_HARDWARE_RADIO, 0);
1448 rt2x00_set_field16(&word, EEPROM_ANTENNA_RF_TYPE, RF5226);
1449 rt2x00_eeprom_write(rt2x00dev, EEPROM_ANTENNA, word);
1450 EEPROM(rt2x00dev, "Antenna: 0x%04x\n", word);
1451 }
1452
1453 rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &word);
1454 if (word == 0xffff) {
1455 rt2x00_set_field16(&word, EEPROM_NIC_EXTERNAL_LNA, 0);
1456 rt2x00_eeprom_write(rt2x00dev, EEPROM_NIC, word);
1457 EEPROM(rt2x00dev, "NIC: 0x%04x\n", word);
1458 }
1459
1460 rt2x00_eeprom_read(rt2x00dev, EEPROM_LED, &word);
1461 if (word == 0xffff) {
1462 rt2x00_set_field16(&word, EEPROM_LED_POLARITY_RDY_G, 0);
1463 rt2x00_set_field16(&word, EEPROM_LED_POLARITY_RDY_A, 0);
1464 rt2x00_set_field16(&word, EEPROM_LED_POLARITY_ACT, 0);
1465 rt2x00_set_field16(&word, EEPROM_LED_POLARITY_GPIO_0, 0);
1466 rt2x00_set_field16(&word, EEPROM_LED_POLARITY_GPIO_1, 0);
1467 rt2x00_set_field16(&word, EEPROM_LED_POLARITY_GPIO_2, 0);
1468 rt2x00_set_field16(&word, EEPROM_LED_POLARITY_GPIO_3, 0);
1469 rt2x00_set_field16(&word, EEPROM_LED_POLARITY_GPIO_4, 0);
1470 rt2x00_set_field16(&word, EEPROM_LED_LED_MODE,
1471 LED_MODE_DEFAULT);
1472 rt2x00_eeprom_write(rt2x00dev, EEPROM_LED, word);
1473 EEPROM(rt2x00dev, "Led: 0x%04x\n", word);
1474 }
1475
1476 rt2x00_eeprom_read(rt2x00dev, EEPROM_FREQ, &word);
1477 if (word == 0xffff) {
1478 rt2x00_set_field16(&word, EEPROM_FREQ_OFFSET, 0);
1479 rt2x00_set_field16(&word, EEPROM_FREQ_SEQ, 0);
1480 rt2x00_eeprom_write(rt2x00dev, EEPROM_FREQ, word);
1481 EEPROM(rt2x00dev, "Freq: 0x%04x\n", word);
1482 }
1483
1484 return 0;
1485 }
1486
1487 static int rt73usb_init_eeprom(struct rt2x00_dev *rt2x00dev)
1488 {
1489 u32 reg;
1490 u16 value;
1491 u16 eeprom;
1492
1493 /*
1494 * Read EEPROM word for configuration.
1495 */
1496 rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &eeprom);
1497
1498 /*
1499 * Identify RF chipset.
1500 */
1501 value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RF_TYPE);
1502 rt73usb_register_read(rt2x00dev, MAC_CSR0, &reg);
1503 rt2x00_set_chip(rt2x00dev, RT2571, value, reg);
1504
1505 if (!rt2x00_rf(&rt2x00dev->chip, RF5226) &&
1506 !rt2x00_rf(&rt2x00dev->chip, RF2528) &&
1507 !rt2x00_rf(&rt2x00dev->chip, RF5225) &&
1508 !rt2x00_rf(&rt2x00dev->chip, RF2527)) {
1509 ERROR(rt2x00dev, "Invalid RF chipset detected.\n");
1510 return -ENODEV;
1511 }
1512
1513 /*
1514 * Identify default antenna configuration.
1515 */
1516 rt2x00dev->hw->conf.antenna_sel_tx = rt2x00_get_field16(eeprom,
1517 EEPROM_ANTENNA_TX_DEFAULT);
1518 rt2x00dev->hw->conf.antenna_sel_rx = rt2x00_get_field16(eeprom,
1519 EEPROM_ANTENNA_RX_DEFAULT);
1520
1521 /*
1522 * Read the Frame type.
1523 */
1524 if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_FRAME_TYPE))
1525 __set_bit(CONFIG_FRAME_TYPE, &rt2x00dev->flags);
1526
1527 /*
1528 * Read frequency offset.
1529 */
1530 rt2x00_eeprom_read(rt2x00dev, EEPROM_FREQ, &eeprom);
1531 rt2x00dev->freq_offset =
1532 rt2x00_get_field16(eeprom, EEPROM_FREQ_OFFSET);
1533
1534 /*
1535 * Read external LNA informations.
1536 */
1537 rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &eeprom);
1538
1539 if (rt2x00_get_field16(eeprom, EEPROM_NIC_EXTERNAL_LNA))
1540 __set_bit(CONFIG_EXTERNAL_LNA, &rt2x00dev->flags);
1541
1542 /*
1543 * Store led settings, for correct led behaviour.
1544 */
1545 rt2x00_eeprom_read(rt2x00dev, EEPROM_LED, &eeprom);
1546
1547 rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_LED_MODE,
1548 rt2x00dev->led_mode);
1549 rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_POLARITY_GPIO_0,
1550 rt2x00_get_field16(eeprom, EEPROM_LED_POLARITY_GPIO_0));
1551 rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_POLARITY_GPIO_1,
1552 rt2x00_get_field16(eeprom, EEPROM_LED_POLARITY_GPIO_1));
1553 rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_POLARITY_GPIO_2,
1554 rt2x00_get_field16(eeprom, EEPROM_LED_POLARITY_GPIO_2));
1555 rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_POLARITY_GPIO_3,
1556 rt2x00_get_field16(eeprom, EEPROM_LED_POLARITY_GPIO_3));
1557 rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_POLARITY_GPIO_4,
1558 rt2x00_get_field16(eeprom, EEPROM_LED_POLARITY_GPIO_4));
1559 rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_POLARITY_ACT,
1560 rt2x00_get_field16(eeprom, EEPROM_LED_POLARITY_ACT));
1561 rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_POLARITY_READY_BG,
1562 rt2x00_get_field16(eeprom, EEPROM_LED_POLARITY_RDY_G));
1563 rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_POLARITY_READY_A,
1564 rt2x00_get_field16(eeprom, EEPROM_LED_POLARITY_RDY_A));
1565
1566 return 0;
1567 }
1568
1569 static const struct {
1570 unsigned int chip;
1571 u32 val[3];
1572 } rf_vals[] = {
1573 { RF5226, { 0x00002c0c, 0x00068255 } },
1574 { RF2528, { 0x00002c0c, 0x00068255 } },
1575 { RF5225, { 0x00002ccc, 0x00000000 } },
1576 { RF2527, { 0x00002ccc, 0x00068455 } },
1577 };
1578
1579 /*
1580 * RF value list for RF5226, RF2528, RF5225 & RF2527
1581 * Supports: 2.4 GHz
1582 */
1583 static const u32 rf_vals_bg[] = {
1584 0x00000786, 0x00000786, 0x0000078a, 0x0000078a, 0x0000078e,
1585 0x0000078e, 0x00000792, 0x00000792, 0x00000796, 0x00000796,
1586 0x0000079a, 0x0000079a, 0x0000079e, 0x000007a2
1587 };
1588
1589 /*
1590 * RF value list for RF5226 & RF5225 (supplement to vals_bg)
1591 * Supports: 5.2 GHz
1592 */
1593 static const u32 rf_vals_a_5x[] = {
1594 0x0000099a, 0x000009a2, 0x000009a6, 0x000009aa, 0x000009ae,
1595 0x000009b2, 0x000009ba, 0x000009be, 0x00000a2a, 0x00000a2e,
1596 0x00000a32, 0x00000a36, 0x00000a3a, 0x00000a82, 0x00000a86,
1597 0x00000a8a, 0x00000a8e, 0x00000a92, 0x00000a9a, 0x00000aa2,
1598 0x00000aa6, 0x00000aae, 0x00000ab2, 0x00000ab6
1599 };
1600
1601 static void rt73usb_init_hw_mode(struct rt2x00_dev *rt2x00dev)
1602 {
1603 struct hw_mode_spec *spec = &rt2x00dev->spec;
1604 u8 *txpower;
1605 unsigned int i;
1606
1607 /*
1608 * Initialize all hw fields.
1609 */
1610 rt2x00dev->hw->flags = IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE |
1611 IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
1612 IEEE80211_HW_WEP_INCLUDE_IV |
1613 IEEE80211_HW_DATA_NULLFUNC_ACK |
1614 IEEE80211_HW_NO_TKIP_WMM_HWACCEL |
1615 IEEE80211_HW_MONITOR_DURING_OPER;
1616 rt2x00dev->hw->extra_tx_headroom = TXD_DESC_SIZE;
1617 rt2x00dev->hw->max_rssi = MAX_RX_SSI;
1618 rt2x00dev->hw->max_noise = MAX_RX_NOISE;
1619 rt2x00dev->hw->queues = 5;
1620
1621 /*
1622 * Set device specific, but channel independent RF values.
1623 */
1624 for (i = 0; i < ARRAY_SIZE(rf_vals); i++) {
1625 if (rt2x00_rf(&rt2x00dev->chip, rf_vals[i].chip)) {
1626 rt2x00dev->rf1 = rf_vals[i].val[0];
1627 rt2x00dev->rf3 = rf_vals[i].val[1];
1628 }
1629 }
1630
1631 /*
1632 * Convert tx_power array in eeprom.
1633 */
1634 txpower = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_G_START);
1635 for (i = 0; i < 14; i++)
1636 txpower[i] = TXPOWER_FROM_DEV(txpower[i]);
1637
1638 /*
1639 * Initialize hw_mode information.
1640 */
1641 spec->mac_addr = rt2x00_eeprom_addr(rt2x00dev, EEPROM_MAC_ADDR_0);
1642 spec->num_modes = 2;
1643 spec->num_rates = 12;
1644 spec->num_channels = 14;
1645 spec->tx_power_a = NULL;
1646 spec->tx_power_bg = txpower;
1647 spec->tx_power_default = DEFAULT_TXPOWER;
1648 spec->chan_val_a = NULL;
1649 spec->chan_val_bg = rf_vals_bg;
1650
1651 if (rt2x00_rf(&rt2x00dev->chip, RF5225) ||
1652 rt2x00_rf(&rt2x00dev->chip, RF5226)) {
1653 spec->num_modes = 3;
1654 spec->num_channels += 24;
1655
1656 txpower = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_A_START);
1657 for (i = 0; i < 14; i++)
1658 txpower[i] = TXPOWER_FROM_DEV(txpower[i]);
1659
1660 spec->tx_power_a = txpower;
1661 spec->chan_val_a = rf_vals_a_5x;
1662 }
1663 }
1664
1665 static int rt73usb_init_hw(struct rt2x00_dev *rt2x00dev)
1666 {
1667 int retval;
1668
1669 /*
1670 * Allocate eeprom data.
1671 */
1672 retval = rt73usb_alloc_eeprom(rt2x00dev);
1673 if (retval)
1674 return retval;
1675
1676 retval = rt73usb_init_eeprom(rt2x00dev);
1677 if (retval)
1678 return retval;
1679
1680 /*
1681 * Initialize hw specifications.
1682 */
1683 rt73usb_init_hw_mode(rt2x00dev);
1684
1685 /*
1686 * rt73usb requires firmware
1687 */
1688 __set_bit(FIRMWARE_REQUIRED, &rt2x00dev->flags);
1689
1690 return 0;
1691 }
1692
1693 /*
1694 * IEEE80211 stack callback functions.
1695 */
1696 static int rt73usb_get_stats(struct ieee80211_hw *hw,
1697 struct ieee80211_low_level_stats *stats)
1698 {
1699 struct rt2x00_dev *rt2x00dev = hw->priv;
1700 u32 reg;
1701
1702 /*
1703 * Update FCS error count from register.
1704 * The dot11ACKFailureCount, dot11RTSFailureCount and
1705 * dot11RTSSuccessCount are updated in interrupt time.
1706 */
1707 rt73usb_register_read(rt2x00dev, STA_CSR0, &reg);
1708 rt2x00dev->low_level_stats.dot11FCSErrorCount +=
1709 rt2x00_get_field32(reg, STA_CSR0_FCS_ERROR);
1710
1711 memcpy(stats, &rt2x00dev->low_level_stats, sizeof(*stats));
1712
1713 return 0;
1714 }
1715
1716 static int rt73usb_set_retry_limit(struct ieee80211_hw *hw,
1717 u32 short_retry, u32 long_retry)
1718 {
1719 struct rt2x00_dev *rt2x00dev = hw->priv;
1720 u32 reg;
1721
1722 rt73usb_register_read(rt2x00dev, TXRX_CSR4, &reg);
1723 rt2x00_set_field32(&reg, TXRX_CSR4_LONG_RETRY_LIMIT, long_retry);
1724 rt2x00_set_field32(&reg, TXRX_CSR4_SHORT_RETRY_LIMIT, short_retry);
1725 rt73usb_register_write(rt2x00dev, TXRX_CSR4, reg);
1726
1727 return 0;
1728 }
1729
1730 static u64 rt73usb_get_tsf(struct ieee80211_hw *hw)
1731 {
1732 struct rt2x00_dev *rt2x00dev = hw->priv;
1733 u64 tsf;
1734 u32 reg;
1735
1736 rt73usb_register_read(rt2x00dev, TXRX_CSR13, &reg);
1737 tsf = (u64)rt2x00_get_field32(reg, TXRX_CSR13_HIGH_TSFTIMER) << 32;
1738 rt73usb_register_read(rt2x00dev, TXRX_CSR12, &reg);
1739 tsf |= rt2x00_get_field32(reg, TXRX_CSR12_LOW_TSFTIMER);
1740
1741 return tsf;
1742 }
1743
1744 static void rt73usb_reset_tsf(struct ieee80211_hw *hw)
1745 {
1746 struct rt2x00_dev *rt2x00dev = hw->priv;
1747
1748 rt73usb_register_write(rt2x00dev, TXRX_CSR12, 0);
1749 rt73usb_register_write(rt2x00dev, TXRX_CSR13, 0);
1750 }
1751
1752 static const struct ieee80211_ops rt73usb_mac80211_ops = {
1753 .tx = rt2x00lib_tx,
1754 .reset = rt2x00lib_reset,
1755 .open = rt2x00lib_open,
1756 .stop = rt2x00lib_stop,
1757 .add_interface = rt2x00lib_add_interface,
1758 .remove_interface = rt2x00lib_remove_interface,
1759 .config = rt2x00lib_config,
1760 .config_interface = rt2x00lib_config_interface,
1761 .set_multicast_list = rt2x00lib_set_multicast_list,
1762 .get_stats = rt73usb_get_stats,
1763 .set_retry_limit = rt73usb_set_retry_limit,
1764 .conf_tx = rt2x00lib_conf_tx,
1765 .get_tx_stats = rt2x00lib_get_tx_stats,
1766 .get_tsf = rt73usb_get_tsf,
1767 .reset_tsf = rt73usb_reset_tsf,
1768 .beacon_update = rt2x00usb_beacon_update,
1769 };
1770
1771 static const struct rt2x00lib_ops rt73usb_rt2x00_ops = {
1772 .init_hw = rt73usb_init_hw,
1773 .get_fw_name = rt73usb_get_fw_name,
1774 .load_firmware = rt73usb_load_firmware,
1775 .initialize = rt2x00usb_initialize,
1776 .uninitialize = rt2x00usb_uninitialize,
1777 .set_device_state = rt73usb_set_device_state,
1778 .link_tuner = rt73usb_link_tuner,
1779 .write_tx_desc = rt73usb_write_tx_desc,
1780 .write_tx_data = rt2x00usb_write_tx_data,
1781 .kick_tx_queue = rt73usb_kick_tx_queue,
1782 .config_type = rt73usb_config_type,
1783 .config_phymode = rt73usb_config_phymode,
1784 .config_channel = rt73usb_config_channel,
1785 .config_mac_addr = rt73usb_config_mac_addr,
1786 .config_bssid = rt73usb_config_bssid,
1787 .config_promisc = rt73usb_config_promisc,
1788 .config_txpower = rt73usb_config_txpower,
1789 .config_antenna = rt73usb_config_antenna,
1790 .config_duration = rt73usb_config_duration,
1791 };
1792
1793 static const struct rt2x00_ops rt73usb_ops = {
1794 .name = DRV_NAME,
1795 .rxd_size = RXD_DESC_SIZE,
1796 .txd_size = TXD_DESC_SIZE,
1797 .lib = &rt73usb_rt2x00_ops,
1798 .hw = &rt73usb_mac80211_ops,
1799 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
1800 .debugfs = &rt73usb_rt2x00debug,
1801 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
1802 };
1803
1804 /*
1805 * rt73usb module information.
1806 */
1807 static struct usb_device_id rt73usb_device_table[] = {
1808 /* AboCom */
1809 { USB_DEVICE(0x07b8, 0xb21d), USB_DEVICE_DATA(&rt73usb_ops) },
1810 /* Askey */
1811 { USB_DEVICE(0x1690, 0x0722), USB_DEVICE_DATA(&rt73usb_ops) },
1812 /* ASUS */
1813 { USB_DEVICE(0x0b05, 0x1723), USB_DEVICE_DATA(&rt73usb_ops) },
1814 { USB_DEVICE(0x0b05, 0x1724), USB_DEVICE_DATA(&rt73usb_ops) },
1815 /* Belkin */
1816 { USB_DEVICE(0x050d, 0x7050), USB_DEVICE_DATA(&rt73usb_ops) },
1817 { USB_DEVICE(0x050d, 0x705a), USB_DEVICE_DATA(&rt73usb_ops) },
1818 { USB_DEVICE(0x050d, 0x905b), USB_DEVICE_DATA(&rt73usb_ops) },
1819 /* Billionton */
1820 { USB_DEVICE(0x1631, 0xc019), USB_DEVICE_DATA(&rt73usb_ops) },
1821 /* CNet */
1822 { USB_DEVICE(0x1371, 0x9022), USB_DEVICE_DATA(&rt73usb_ops) },
1823 { USB_DEVICE(0x1371, 0x9032), USB_DEVICE_DATA(&rt73usb_ops) },
1824 /* Conceptronic */
1825 { USB_DEVICE(0x14b2, 0x3c22), USB_DEVICE_DATA(&rt73usb_ops) },
1826 /* D-Link */
1827 { USB_DEVICE(0x07d1, 0x3c03), USB_DEVICE_DATA(&rt73usb_ops) },
1828 { USB_DEVICE(0x07d1, 0x3c04), USB_DEVICE_DATA(&rt73usb_ops) },
1829 /* Gemtek */
1830 { USB_DEVICE(0x15a9, 0x0004), USB_DEVICE_DATA(&rt73usb_ops) },
1831 /* Gigabyte */
1832 { USB_DEVICE(0x1044, 0x8008), USB_DEVICE_DATA(&rt73usb_ops) },
1833 { USB_DEVICE(0x1044, 0x800a), USB_DEVICE_DATA(&rt73usb_ops) },
1834 /* Huawei-3Com */
1835 { USB_DEVICE(0x1472, 0x0009), USB_DEVICE_DATA(&rt73usb_ops) },
1836 /* Hercules */
1837 { USB_DEVICE(0x06f8, 0xe010), USB_DEVICE_DATA(&rt73usb_ops) },
1838 { USB_DEVICE(0x06f8, 0xe020), USB_DEVICE_DATA(&rt73usb_ops) },
1839 /* Linksys */
1840 { USB_DEVICE(0x13b1, 0x0020), USB_DEVICE_DATA(&rt73usb_ops) },
1841 { USB_DEVICE(0x13b1, 0x0023), USB_DEVICE_DATA(&rt73usb_ops) },
1842 /* MSI */
1843 { USB_DEVICE(0x0db0, 0x6877), USB_DEVICE_DATA(&rt73usb_ops) },
1844 { USB_DEVICE(0x0db0, 0xa861), USB_DEVICE_DATA(&rt73usb_ops) },
1845 { USB_DEVICE(0x0db0, 0xa874), USB_DEVICE_DATA(&rt73usb_ops) },
1846 /* Ralink */
1847 { USB_DEVICE(0x148f, 0x2573), USB_DEVICE_DATA(&rt73usb_ops) },
1848 { USB_DEVICE(0x148f, 0x2671), USB_DEVICE_DATA(&rt73usb_ops) },
1849 /* Qcom */
1850 { USB_DEVICE(0x18e8, 0x6196), USB_DEVICE_DATA(&rt73usb_ops) },
1851 { USB_DEVICE(0x18e8, 0x6229), USB_DEVICE_DATA(&rt73usb_ops) },
1852 /* Sitecom */
1853 { USB_DEVICE(0x0df6, 0x9712), USB_DEVICE_DATA(&rt73usb_ops) },
1854 { USB_DEVICE(0x0df6, 0x90ac), USB_DEVICE_DATA(&rt73usb_ops) },
1855 /* Surecom */
1856 { USB_DEVICE(0x0769, 0x31f3), USB_DEVICE_DATA(&rt73usb_ops) },
1857 /* Planex */
1858 { USB_DEVICE(0x2019, 0xab01), USB_DEVICE_DATA(&rt73usb_ops) },
1859 { USB_DEVICE(0x2019, 0xab50), USB_DEVICE_DATA(&rt73usb_ops) },
1860 { 0, }
1861 };
1862
1863 MODULE_AUTHOR(DRV_PROJECT);
1864 MODULE_VERSION(DRV_VERSION);
1865 MODULE_DESCRIPTION("Ralink RT73 USB Wireless LAN driver.");
1866 MODULE_SUPPORTED_DEVICE("Ralink RT2571W & RT2671 USB chipset based cards");
1867 MODULE_DEVICE_TABLE(usb, rt73usb_device_table);
1868 MODULE_FIRMWARE(FIRMWARE_RT2571);
1869 MODULE_LICENSE("GPL");
1870
1871 static struct usb_driver rt73usb_driver = {
1872 .name = DRV_NAME,
1873 .id_table = rt73usb_device_table,
1874 .probe = rt2x00usb_probe,
1875 .disconnect = rt2x00usb_disconnect,
1876 #ifdef CONFIG_PM
1877 .suspend = rt2x00usb_suspend,
1878 .resume = rt2x00usb_resume,
1879 #endif /* CONFIG_PM */
1880 };
1881
1882 static int __init rt73usb_init(void)
1883 {
1884 printk(KERN_INFO "Loading module: %s - %s by %s.\n",
1885 DRV_NAME, DRV_VERSION, DRV_PROJECT);
1886 return usb_register(&rt73usb_driver);
1887 }
1888
1889 static void __exit rt73usb_exit(void)
1890 {
1891 printk(KERN_INFO "Unloading module: %s.\n", DRV_NAME);
1892 usb_deregister(&rt73usb_driver);
1893 }
1894
1895 module_init(rt73usb_init);
1896 module_exit(rt73usb_exit);
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