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rt2x00: Preserve descriptor information after memmove()
[deliverable/linux.git] / drivers / net / wireless / rt2x00 / rt73usb.c
1 /*
2 Copyright (C) 2004 - 2008 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 #include <linux/crc-itu-t.h>
28 #include <linux/delay.h>
29 #include <linux/etherdevice.h>
30 #include <linux/init.h>
31 #include <linux/kernel.h>
32 #include <linux/module.h>
33 #include <linux/usb.h>
34
35 #include "rt2x00.h"
36 #include "rt2x00usb.h"
37 #include "rt73usb.h"
38
39 /*
40 * Register access.
41 * All access to the CSR registers will go through the methods
42 * rt73usb_register_read and rt73usb_register_write.
43 * BBP and RF register require indirect register access,
44 * and use the CSR registers BBPCSR and RFCSR to achieve this.
45 * These indirect registers work with busy bits,
46 * and we will try maximal REGISTER_BUSY_COUNT times to access
47 * the register while taking a REGISTER_BUSY_DELAY us delay
48 * between each attampt. When the busy bit is still set at that time,
49 * the access attempt is considered to have failed,
50 * and we will print an error.
51 * The _lock versions must be used if you already hold the usb_cache_mutex
52 */
53 static inline void rt73usb_register_read(struct rt2x00_dev *rt2x00dev,
54 const unsigned int offset, u32 *value)
55 {
56 __le32 reg;
57 rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_READ,
58 USB_VENDOR_REQUEST_IN, offset,
59 &reg, sizeof(u32), REGISTER_TIMEOUT);
60 *value = le32_to_cpu(reg);
61 }
62
63 static inline void rt73usb_register_read_lock(struct rt2x00_dev *rt2x00dev,
64 const unsigned int offset, u32 *value)
65 {
66 __le32 reg;
67 rt2x00usb_vendor_req_buff_lock(rt2x00dev, USB_MULTI_READ,
68 USB_VENDOR_REQUEST_IN, offset,
69 &reg, sizeof(u32), REGISTER_TIMEOUT);
70 *value = le32_to_cpu(reg);
71 }
72
73 static inline void rt73usb_register_multiread(struct rt2x00_dev *rt2x00dev,
74 const unsigned int offset,
75 void *value, const u32 length)
76 {
77 rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_READ,
78 USB_VENDOR_REQUEST_IN, offset,
79 value, length,
80 REGISTER_TIMEOUT32(length));
81 }
82
83 static inline void rt73usb_register_write(struct rt2x00_dev *rt2x00dev,
84 const unsigned int offset, u32 value)
85 {
86 __le32 reg = cpu_to_le32(value);
87 rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_WRITE,
88 USB_VENDOR_REQUEST_OUT, offset,
89 &reg, sizeof(u32), REGISTER_TIMEOUT);
90 }
91
92 static inline void rt73usb_register_write_lock(struct rt2x00_dev *rt2x00dev,
93 const unsigned int offset, u32 value)
94 {
95 __le32 reg = cpu_to_le32(value);
96 rt2x00usb_vendor_req_buff_lock(rt2x00dev, USB_MULTI_WRITE,
97 USB_VENDOR_REQUEST_OUT, offset,
98 &reg, sizeof(u32), REGISTER_TIMEOUT);
99 }
100
101 static inline void rt73usb_register_multiwrite(struct rt2x00_dev *rt2x00dev,
102 const unsigned int offset,
103 void *value, const u32 length)
104 {
105 rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_WRITE,
106 USB_VENDOR_REQUEST_OUT, offset,
107 value, length,
108 REGISTER_TIMEOUT32(length));
109 }
110
111 static u32 rt73usb_bbp_check(struct rt2x00_dev *rt2x00dev)
112 {
113 u32 reg;
114 unsigned int i;
115
116 for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
117 rt73usb_register_read_lock(rt2x00dev, PHY_CSR3, &reg);
118 if (!rt2x00_get_field32(reg, PHY_CSR3_BUSY))
119 break;
120 udelay(REGISTER_BUSY_DELAY);
121 }
122
123 return reg;
124 }
125
126 static void rt73usb_bbp_write(struct rt2x00_dev *rt2x00dev,
127 const unsigned int word, const u8 value)
128 {
129 u32 reg;
130
131 mutex_lock(&rt2x00dev->usb_cache_mutex);
132
133 /*
134 * Wait until the BBP becomes ready.
135 */
136 reg = rt73usb_bbp_check(rt2x00dev);
137 if (rt2x00_get_field32(reg, PHY_CSR3_BUSY)) {
138 ERROR(rt2x00dev, "PHY_CSR3 register busy. Write failed.\n");
139 mutex_unlock(&rt2x00dev->usb_cache_mutex);
140 return;
141 }
142
143 /*
144 * Write the data into the BBP.
145 */
146 reg = 0;
147 rt2x00_set_field32(&reg, PHY_CSR3_VALUE, value);
148 rt2x00_set_field32(&reg, PHY_CSR3_REGNUM, word);
149 rt2x00_set_field32(&reg, PHY_CSR3_BUSY, 1);
150 rt2x00_set_field32(&reg, PHY_CSR3_READ_CONTROL, 0);
151
152 rt73usb_register_write_lock(rt2x00dev, PHY_CSR3, reg);
153 mutex_unlock(&rt2x00dev->usb_cache_mutex);
154 }
155
156 static void rt73usb_bbp_read(struct rt2x00_dev *rt2x00dev,
157 const unsigned int word, u8 *value)
158 {
159 u32 reg;
160
161 mutex_lock(&rt2x00dev->usb_cache_mutex);
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 mutex_unlock(&rt2x00dev->usb_cache_mutex);
170 return;
171 }
172
173 /*
174 * Write the request into the BBP.
175 */
176 reg = 0;
177 rt2x00_set_field32(&reg, PHY_CSR3_REGNUM, word);
178 rt2x00_set_field32(&reg, PHY_CSR3_BUSY, 1);
179 rt2x00_set_field32(&reg, PHY_CSR3_READ_CONTROL, 1);
180
181 rt73usb_register_write_lock(rt2x00dev, PHY_CSR3, reg);
182
183 /*
184 * Wait until the BBP becomes ready.
185 */
186 reg = rt73usb_bbp_check(rt2x00dev);
187 if (rt2x00_get_field32(reg, PHY_CSR3_BUSY)) {
188 ERROR(rt2x00dev, "PHY_CSR3 register busy. Read failed.\n");
189 *value = 0xff;
190 return;
191 }
192
193 *value = rt2x00_get_field32(reg, PHY_CSR3_VALUE);
194 mutex_unlock(&rt2x00dev->usb_cache_mutex);
195 }
196
197 static void rt73usb_rf_write(struct rt2x00_dev *rt2x00dev,
198 const unsigned int word, const u32 value)
199 {
200 u32 reg;
201 unsigned int i;
202
203 if (!word)
204 return;
205
206 mutex_lock(&rt2x00dev->usb_cache_mutex);
207
208 for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
209 rt73usb_register_read_lock(rt2x00dev, PHY_CSR4, &reg);
210 if (!rt2x00_get_field32(reg, PHY_CSR4_BUSY))
211 goto rf_write;
212 udelay(REGISTER_BUSY_DELAY);
213 }
214
215 mutex_unlock(&rt2x00dev->usb_cache_mutex);
216 ERROR(rt2x00dev, "PHY_CSR4 register busy. Write failed.\n");
217 return;
218
219 rf_write:
220 reg = 0;
221 rt2x00_set_field32(&reg, PHY_CSR4_VALUE, value);
222
223 /*
224 * RF5225 and RF2527 contain 21 bits per RF register value,
225 * all others contain 20 bits.
226 */
227 rt2x00_set_field32(&reg, PHY_CSR4_NUMBER_OF_BITS,
228 20 + (rt2x00_rf(&rt2x00dev->chip, RF5225) ||
229 rt2x00_rf(&rt2x00dev->chip, RF2527)));
230 rt2x00_set_field32(&reg, PHY_CSR4_IF_SELECT, 0);
231 rt2x00_set_field32(&reg, PHY_CSR4_BUSY, 1);
232
233 rt73usb_register_write_lock(rt2x00dev, PHY_CSR4, reg);
234 rt2x00_rf_write(rt2x00dev, word, value);
235 mutex_unlock(&rt2x00dev->usb_cache_mutex);
236 }
237
238 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
239 #define CSR_OFFSET(__word) ( CSR_REG_BASE + ((__word) * sizeof(u32)) )
240
241 static void rt73usb_read_csr(struct rt2x00_dev *rt2x00dev,
242 const unsigned int word, u32 *data)
243 {
244 rt73usb_register_read(rt2x00dev, CSR_OFFSET(word), data);
245 }
246
247 static void rt73usb_write_csr(struct rt2x00_dev *rt2x00dev,
248 const unsigned int word, u32 data)
249 {
250 rt73usb_register_write(rt2x00dev, CSR_OFFSET(word), data);
251 }
252
253 static const struct rt2x00debug rt73usb_rt2x00debug = {
254 .owner = THIS_MODULE,
255 .csr = {
256 .read = rt73usb_read_csr,
257 .write = rt73usb_write_csr,
258 .word_size = sizeof(u32),
259 .word_count = CSR_REG_SIZE / sizeof(u32),
260 },
261 .eeprom = {
262 .read = rt2x00_eeprom_read,
263 .write = rt2x00_eeprom_write,
264 .word_size = sizeof(u16),
265 .word_count = EEPROM_SIZE / sizeof(u16),
266 },
267 .bbp = {
268 .read = rt73usb_bbp_read,
269 .write = rt73usb_bbp_write,
270 .word_size = sizeof(u8),
271 .word_count = BBP_SIZE / sizeof(u8),
272 },
273 .rf = {
274 .read = rt2x00_rf_read,
275 .write = rt73usb_rf_write,
276 .word_size = sizeof(u32),
277 .word_count = RF_SIZE / sizeof(u32),
278 },
279 };
280 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
281
282 #ifdef CONFIG_RT73USB_LEDS
283 static void rt73usb_brightness_set(struct led_classdev *led_cdev,
284 enum led_brightness brightness)
285 {
286 struct rt2x00_led *led =
287 container_of(led_cdev, struct rt2x00_led, led_dev);
288 unsigned int enabled = brightness != LED_OFF;
289 unsigned int a_mode =
290 (enabled && led->rt2x00dev->curr_band == IEEE80211_BAND_5GHZ);
291 unsigned int bg_mode =
292 (enabled && led->rt2x00dev->curr_band == IEEE80211_BAND_2GHZ);
293
294 if (led->type == LED_TYPE_RADIO) {
295 rt2x00_set_field16(&led->rt2x00dev->led_mcu_reg,
296 MCU_LEDCS_RADIO_STATUS, enabled);
297
298 rt2x00usb_vendor_request_sw(led->rt2x00dev, USB_LED_CONTROL,
299 0, led->rt2x00dev->led_mcu_reg,
300 REGISTER_TIMEOUT);
301 } else if (led->type == LED_TYPE_ASSOC) {
302 rt2x00_set_field16(&led->rt2x00dev->led_mcu_reg,
303 MCU_LEDCS_LINK_BG_STATUS, bg_mode);
304 rt2x00_set_field16(&led->rt2x00dev->led_mcu_reg,
305 MCU_LEDCS_LINK_A_STATUS, a_mode);
306
307 rt2x00usb_vendor_request_sw(led->rt2x00dev, USB_LED_CONTROL,
308 0, led->rt2x00dev->led_mcu_reg,
309 REGISTER_TIMEOUT);
310 } else if (led->type == LED_TYPE_QUALITY) {
311 /*
312 * The brightness is divided into 6 levels (0 - 5),
313 * this means we need to convert the brightness
314 * argument into the matching level within that range.
315 */
316 rt2x00usb_vendor_request_sw(led->rt2x00dev, USB_LED_CONTROL,
317 brightness / (LED_FULL / 6),
318 led->rt2x00dev->led_mcu_reg,
319 REGISTER_TIMEOUT);
320 }
321 }
322
323 static int rt73usb_blink_set(struct led_classdev *led_cdev,
324 unsigned long *delay_on,
325 unsigned long *delay_off)
326 {
327 struct rt2x00_led *led =
328 container_of(led_cdev, struct rt2x00_led, led_dev);
329 u32 reg;
330
331 rt73usb_register_read(led->rt2x00dev, MAC_CSR14, &reg);
332 rt2x00_set_field32(&reg, MAC_CSR14_ON_PERIOD, *delay_on);
333 rt2x00_set_field32(&reg, MAC_CSR14_OFF_PERIOD, *delay_off);
334 rt73usb_register_write(led->rt2x00dev, MAC_CSR14, reg);
335
336 return 0;
337 }
338 #endif /* CONFIG_RT73USB_LEDS */
339
340 /*
341 * Configuration handlers.
342 */
343 static void rt73usb_config_filter(struct rt2x00_dev *rt2x00dev,
344 const unsigned int filter_flags)
345 {
346 u32 reg;
347
348 /*
349 * Start configuration steps.
350 * Note that the version error will always be dropped
351 * and broadcast frames will always be accepted since
352 * there is no filter for it at this time.
353 */
354 rt73usb_register_read(rt2x00dev, TXRX_CSR0, &reg);
355 rt2x00_set_field32(&reg, TXRX_CSR0_DROP_CRC,
356 !(filter_flags & FIF_FCSFAIL));
357 rt2x00_set_field32(&reg, TXRX_CSR0_DROP_PHYSICAL,
358 !(filter_flags & FIF_PLCPFAIL));
359 rt2x00_set_field32(&reg, TXRX_CSR0_DROP_CONTROL,
360 !(filter_flags & FIF_CONTROL));
361 rt2x00_set_field32(&reg, TXRX_CSR0_DROP_NOT_TO_ME,
362 !(filter_flags & FIF_PROMISC_IN_BSS));
363 rt2x00_set_field32(&reg, TXRX_CSR0_DROP_TO_DS,
364 !(filter_flags & FIF_PROMISC_IN_BSS) &&
365 !rt2x00dev->intf_ap_count);
366 rt2x00_set_field32(&reg, TXRX_CSR0_DROP_VERSION_ERROR, 1);
367 rt2x00_set_field32(&reg, TXRX_CSR0_DROP_MULTICAST,
368 !(filter_flags & FIF_ALLMULTI));
369 rt2x00_set_field32(&reg, TXRX_CSR0_DROP_BROADCAST, 0);
370 rt2x00_set_field32(&reg, TXRX_CSR0_DROP_ACK_CTS,
371 !(filter_flags & FIF_CONTROL));
372 rt73usb_register_write(rt2x00dev, TXRX_CSR0, reg);
373 }
374
375 static void rt73usb_config_intf(struct rt2x00_dev *rt2x00dev,
376 struct rt2x00_intf *intf,
377 struct rt2x00intf_conf *conf,
378 const unsigned int flags)
379 {
380 unsigned int beacon_base;
381 u32 reg;
382
383 if (flags & CONFIG_UPDATE_TYPE) {
384 /*
385 * Clear current synchronisation setup.
386 * For the Beacon base registers we only need to clear
387 * the first byte since that byte contains the VALID and OWNER
388 * bits which (when set to 0) will invalidate the entire beacon.
389 */
390 beacon_base = HW_BEACON_OFFSET(intf->beacon->entry_idx);
391 rt73usb_register_write(rt2x00dev, beacon_base, 0);
392
393 /*
394 * Enable synchronisation.
395 */
396 rt73usb_register_read(rt2x00dev, TXRX_CSR9, &reg);
397 rt2x00_set_field32(&reg, TXRX_CSR9_TSF_TICKING, 1);
398 rt2x00_set_field32(&reg, TXRX_CSR9_TSF_SYNC, conf->sync);
399 rt2x00_set_field32(&reg, TXRX_CSR9_TBTT_ENABLE, 1);
400 rt73usb_register_write(rt2x00dev, TXRX_CSR9, reg);
401 }
402
403 if (flags & CONFIG_UPDATE_MAC) {
404 reg = le32_to_cpu(conf->mac[1]);
405 rt2x00_set_field32(&reg, MAC_CSR3_UNICAST_TO_ME_MASK, 0xff);
406 conf->mac[1] = cpu_to_le32(reg);
407
408 rt73usb_register_multiwrite(rt2x00dev, MAC_CSR2,
409 conf->mac, sizeof(conf->mac));
410 }
411
412 if (flags & CONFIG_UPDATE_BSSID) {
413 reg = le32_to_cpu(conf->bssid[1]);
414 rt2x00_set_field32(&reg, MAC_CSR5_BSS_ID_MASK, 3);
415 conf->bssid[1] = cpu_to_le32(reg);
416
417 rt73usb_register_multiwrite(rt2x00dev, MAC_CSR4,
418 conf->bssid, sizeof(conf->bssid));
419 }
420 }
421
422 static void rt73usb_config_erp(struct rt2x00_dev *rt2x00dev,
423 struct rt2x00lib_erp *erp)
424 {
425 u32 reg;
426
427 rt73usb_register_read(rt2x00dev, TXRX_CSR0, &reg);
428 rt2x00_set_field32(&reg, TXRX_CSR0_RX_ACK_TIMEOUT, erp->ack_timeout);
429 rt73usb_register_write(rt2x00dev, TXRX_CSR0, reg);
430
431 rt73usb_register_read(rt2x00dev, TXRX_CSR4, &reg);
432 rt2x00_set_field32(&reg, TXRX_CSR4_AUTORESPOND_PREAMBLE,
433 !!erp->short_preamble);
434 rt73usb_register_write(rt2x00dev, TXRX_CSR4, reg);
435 }
436
437 static void rt73usb_config_phymode(struct rt2x00_dev *rt2x00dev,
438 const int basic_rate_mask)
439 {
440 rt73usb_register_write(rt2x00dev, TXRX_CSR5, basic_rate_mask);
441 }
442
443 static void rt73usb_config_channel(struct rt2x00_dev *rt2x00dev,
444 struct rf_channel *rf, const int txpower)
445 {
446 u8 r3;
447 u8 r94;
448 u8 smart;
449
450 rt2x00_set_field32(&rf->rf3, RF3_TXPOWER, TXPOWER_TO_DEV(txpower));
451 rt2x00_set_field32(&rf->rf4, RF4_FREQ_OFFSET, rt2x00dev->freq_offset);
452
453 smart = !(rt2x00_rf(&rt2x00dev->chip, RF5225) ||
454 rt2x00_rf(&rt2x00dev->chip, RF2527));
455
456 rt73usb_bbp_read(rt2x00dev, 3, &r3);
457 rt2x00_set_field8(&r3, BBP_R3_SMART_MODE, smart);
458 rt73usb_bbp_write(rt2x00dev, 3, r3);
459
460 r94 = 6;
461 if (txpower > MAX_TXPOWER && txpower <= (MAX_TXPOWER + r94))
462 r94 += txpower - MAX_TXPOWER;
463 else if (txpower < MIN_TXPOWER && txpower >= (MIN_TXPOWER - r94))
464 r94 += txpower;
465 rt73usb_bbp_write(rt2x00dev, 94, r94);
466
467 rt73usb_rf_write(rt2x00dev, 1, rf->rf1);
468 rt73usb_rf_write(rt2x00dev, 2, rf->rf2);
469 rt73usb_rf_write(rt2x00dev, 3, rf->rf3 & ~0x00000004);
470 rt73usb_rf_write(rt2x00dev, 4, rf->rf4);
471
472 rt73usb_rf_write(rt2x00dev, 1, rf->rf1);
473 rt73usb_rf_write(rt2x00dev, 2, rf->rf2);
474 rt73usb_rf_write(rt2x00dev, 3, rf->rf3 | 0x00000004);
475 rt73usb_rf_write(rt2x00dev, 4, rf->rf4);
476
477 rt73usb_rf_write(rt2x00dev, 1, rf->rf1);
478 rt73usb_rf_write(rt2x00dev, 2, rf->rf2);
479 rt73usb_rf_write(rt2x00dev, 3, rf->rf3 & ~0x00000004);
480 rt73usb_rf_write(rt2x00dev, 4, rf->rf4);
481
482 udelay(10);
483 }
484
485 static void rt73usb_config_txpower(struct rt2x00_dev *rt2x00dev,
486 const int txpower)
487 {
488 struct rf_channel rf;
489
490 rt2x00_rf_read(rt2x00dev, 1, &rf.rf1);
491 rt2x00_rf_read(rt2x00dev, 2, &rf.rf2);
492 rt2x00_rf_read(rt2x00dev, 3, &rf.rf3);
493 rt2x00_rf_read(rt2x00dev, 4, &rf.rf4);
494
495 rt73usb_config_channel(rt2x00dev, &rf, txpower);
496 }
497
498 static void rt73usb_config_antenna_5x(struct rt2x00_dev *rt2x00dev,
499 struct antenna_setup *ant)
500 {
501 u8 r3;
502 u8 r4;
503 u8 r77;
504 u8 temp;
505
506 rt73usb_bbp_read(rt2x00dev, 3, &r3);
507 rt73usb_bbp_read(rt2x00dev, 4, &r4);
508 rt73usb_bbp_read(rt2x00dev, 77, &r77);
509
510 rt2x00_set_field8(&r3, BBP_R3_SMART_MODE, 0);
511
512 /*
513 * Configure the RX antenna.
514 */
515 switch (ant->rx) {
516 case ANTENNA_HW_DIVERSITY:
517 rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA_CONTROL, 2);
518 temp = !test_bit(CONFIG_FRAME_TYPE, &rt2x00dev->flags)
519 && (rt2x00dev->curr_band != IEEE80211_BAND_5GHZ);
520 rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END, temp);
521 break;
522 case ANTENNA_A:
523 rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA_CONTROL, 1);
524 rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END, 0);
525 if (rt2x00dev->curr_band == IEEE80211_BAND_5GHZ)
526 rt2x00_set_field8(&r77, BBP_R77_RX_ANTENNA, 0);
527 else
528 rt2x00_set_field8(&r77, BBP_R77_RX_ANTENNA, 3);
529 break;
530 case ANTENNA_B:
531 default:
532 rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA_CONTROL, 1);
533 rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END, 0);
534 if (rt2x00dev->curr_band == IEEE80211_BAND_5GHZ)
535 rt2x00_set_field8(&r77, BBP_R77_RX_ANTENNA, 3);
536 else
537 rt2x00_set_field8(&r77, BBP_R77_RX_ANTENNA, 0);
538 break;
539 }
540
541 rt73usb_bbp_write(rt2x00dev, 77, r77);
542 rt73usb_bbp_write(rt2x00dev, 3, r3);
543 rt73usb_bbp_write(rt2x00dev, 4, r4);
544 }
545
546 static void rt73usb_config_antenna_2x(struct rt2x00_dev *rt2x00dev,
547 struct antenna_setup *ant)
548 {
549 u8 r3;
550 u8 r4;
551 u8 r77;
552
553 rt73usb_bbp_read(rt2x00dev, 3, &r3);
554 rt73usb_bbp_read(rt2x00dev, 4, &r4);
555 rt73usb_bbp_read(rt2x00dev, 77, &r77);
556
557 rt2x00_set_field8(&r3, BBP_R3_SMART_MODE, 0);
558 rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END,
559 !test_bit(CONFIG_FRAME_TYPE, &rt2x00dev->flags));
560
561 /*
562 * Configure the RX antenna.
563 */
564 switch (ant->rx) {
565 case ANTENNA_HW_DIVERSITY:
566 rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA_CONTROL, 2);
567 break;
568 case ANTENNA_A:
569 rt2x00_set_field8(&r77, BBP_R77_RX_ANTENNA, 3);
570 rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA_CONTROL, 1);
571 break;
572 case ANTENNA_B:
573 default:
574 rt2x00_set_field8(&r77, BBP_R77_RX_ANTENNA, 0);
575 rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA_CONTROL, 1);
576 break;
577 }
578
579 rt73usb_bbp_write(rt2x00dev, 77, r77);
580 rt73usb_bbp_write(rt2x00dev, 3, r3);
581 rt73usb_bbp_write(rt2x00dev, 4, r4);
582 }
583
584 struct antenna_sel {
585 u8 word;
586 /*
587 * value[0] -> non-LNA
588 * value[1] -> LNA
589 */
590 u8 value[2];
591 };
592
593 static const struct antenna_sel antenna_sel_a[] = {
594 { 96, { 0x58, 0x78 } },
595 { 104, { 0x38, 0x48 } },
596 { 75, { 0xfe, 0x80 } },
597 { 86, { 0xfe, 0x80 } },
598 { 88, { 0xfe, 0x80 } },
599 { 35, { 0x60, 0x60 } },
600 { 97, { 0x58, 0x58 } },
601 { 98, { 0x58, 0x58 } },
602 };
603
604 static const struct antenna_sel antenna_sel_bg[] = {
605 { 96, { 0x48, 0x68 } },
606 { 104, { 0x2c, 0x3c } },
607 { 75, { 0xfe, 0x80 } },
608 { 86, { 0xfe, 0x80 } },
609 { 88, { 0xfe, 0x80 } },
610 { 35, { 0x50, 0x50 } },
611 { 97, { 0x48, 0x48 } },
612 { 98, { 0x48, 0x48 } },
613 };
614
615 static void rt73usb_config_antenna(struct rt2x00_dev *rt2x00dev,
616 struct antenna_setup *ant)
617 {
618 const struct antenna_sel *sel;
619 unsigned int lna;
620 unsigned int i;
621 u32 reg;
622
623 /*
624 * We should never come here because rt2x00lib is supposed
625 * to catch this and send us the correct antenna explicitely.
626 */
627 BUG_ON(ant->rx == ANTENNA_SW_DIVERSITY ||
628 ant->tx == ANTENNA_SW_DIVERSITY);
629
630 if (rt2x00dev->curr_band == IEEE80211_BAND_5GHZ) {
631 sel = antenna_sel_a;
632 lna = test_bit(CONFIG_EXTERNAL_LNA_A, &rt2x00dev->flags);
633 } else {
634 sel = antenna_sel_bg;
635 lna = test_bit(CONFIG_EXTERNAL_LNA_BG, &rt2x00dev->flags);
636 }
637
638 for (i = 0; i < ARRAY_SIZE(antenna_sel_a); i++)
639 rt73usb_bbp_write(rt2x00dev, sel[i].word, sel[i].value[lna]);
640
641 rt73usb_register_read(rt2x00dev, PHY_CSR0, &reg);
642
643 rt2x00_set_field32(&reg, PHY_CSR0_PA_PE_BG,
644 (rt2x00dev->curr_band == IEEE80211_BAND_2GHZ));
645 rt2x00_set_field32(&reg, PHY_CSR0_PA_PE_A,
646 (rt2x00dev->curr_band == IEEE80211_BAND_5GHZ));
647
648 rt73usb_register_write(rt2x00dev, PHY_CSR0, reg);
649
650 if (rt2x00_rf(&rt2x00dev->chip, RF5226) ||
651 rt2x00_rf(&rt2x00dev->chip, RF5225))
652 rt73usb_config_antenna_5x(rt2x00dev, ant);
653 else if (rt2x00_rf(&rt2x00dev->chip, RF2528) ||
654 rt2x00_rf(&rt2x00dev->chip, RF2527))
655 rt73usb_config_antenna_2x(rt2x00dev, ant);
656 }
657
658 static void rt73usb_config_duration(struct rt2x00_dev *rt2x00dev,
659 struct rt2x00lib_conf *libconf)
660 {
661 u32 reg;
662
663 rt73usb_register_read(rt2x00dev, MAC_CSR9, &reg);
664 rt2x00_set_field32(&reg, MAC_CSR9_SLOT_TIME, libconf->slot_time);
665 rt73usb_register_write(rt2x00dev, MAC_CSR9, reg);
666
667 rt73usb_register_read(rt2x00dev, MAC_CSR8, &reg);
668 rt2x00_set_field32(&reg, MAC_CSR8_SIFS, libconf->sifs);
669 rt2x00_set_field32(&reg, MAC_CSR8_SIFS_AFTER_RX_OFDM, 3);
670 rt2x00_set_field32(&reg, MAC_CSR8_EIFS, libconf->eifs);
671 rt73usb_register_write(rt2x00dev, MAC_CSR8, reg);
672
673 rt73usb_register_read(rt2x00dev, TXRX_CSR0, &reg);
674 rt2x00_set_field32(&reg, TXRX_CSR0_TSF_OFFSET, IEEE80211_HEADER);
675 rt73usb_register_write(rt2x00dev, TXRX_CSR0, reg);
676
677 rt73usb_register_read(rt2x00dev, TXRX_CSR4, &reg);
678 rt2x00_set_field32(&reg, TXRX_CSR4_AUTORESPOND_ENABLE, 1);
679 rt73usb_register_write(rt2x00dev, TXRX_CSR4, reg);
680
681 rt73usb_register_read(rt2x00dev, TXRX_CSR9, &reg);
682 rt2x00_set_field32(&reg, TXRX_CSR9_BEACON_INTERVAL,
683 libconf->conf->beacon_int * 16);
684 rt73usb_register_write(rt2x00dev, TXRX_CSR9, reg);
685 }
686
687 static void rt73usb_config(struct rt2x00_dev *rt2x00dev,
688 struct rt2x00lib_conf *libconf,
689 const unsigned int flags)
690 {
691 if (flags & CONFIG_UPDATE_PHYMODE)
692 rt73usb_config_phymode(rt2x00dev, libconf->basic_rates);
693 if (flags & CONFIG_UPDATE_CHANNEL)
694 rt73usb_config_channel(rt2x00dev, &libconf->rf,
695 libconf->conf->power_level);
696 if ((flags & CONFIG_UPDATE_TXPOWER) && !(flags & CONFIG_UPDATE_CHANNEL))
697 rt73usb_config_txpower(rt2x00dev, libconf->conf->power_level);
698 if (flags & CONFIG_UPDATE_ANTENNA)
699 rt73usb_config_antenna(rt2x00dev, &libconf->ant);
700 if (flags & (CONFIG_UPDATE_SLOT_TIME | CONFIG_UPDATE_BEACON_INT))
701 rt73usb_config_duration(rt2x00dev, libconf);
702 }
703
704 /*
705 * Link tuning
706 */
707 static void rt73usb_link_stats(struct rt2x00_dev *rt2x00dev,
708 struct link_qual *qual)
709 {
710 u32 reg;
711
712 /*
713 * Update FCS error count from register.
714 */
715 rt73usb_register_read(rt2x00dev, STA_CSR0, &reg);
716 qual->rx_failed = rt2x00_get_field32(reg, STA_CSR0_FCS_ERROR);
717
718 /*
719 * Update False CCA count from register.
720 */
721 rt73usb_register_read(rt2x00dev, STA_CSR1, &reg);
722 qual->false_cca = rt2x00_get_field32(reg, STA_CSR1_FALSE_CCA_ERROR);
723 }
724
725 static void rt73usb_reset_tuner(struct rt2x00_dev *rt2x00dev)
726 {
727 rt73usb_bbp_write(rt2x00dev, 17, 0x20);
728 rt2x00dev->link.vgc_level = 0x20;
729 }
730
731 static void rt73usb_link_tuner(struct rt2x00_dev *rt2x00dev)
732 {
733 int rssi = rt2x00_get_link_rssi(&rt2x00dev->link);
734 u8 r17;
735 u8 up_bound;
736 u8 low_bound;
737
738 rt73usb_bbp_read(rt2x00dev, 17, &r17);
739
740 /*
741 * Determine r17 bounds.
742 */
743 if (rt2x00dev->rx_status.band == IEEE80211_BAND_5GHZ) {
744 low_bound = 0x28;
745 up_bound = 0x48;
746
747 if (test_bit(CONFIG_EXTERNAL_LNA_A, &rt2x00dev->flags)) {
748 low_bound += 0x10;
749 up_bound += 0x10;
750 }
751 } else {
752 if (rssi > -82) {
753 low_bound = 0x1c;
754 up_bound = 0x40;
755 } else if (rssi > -84) {
756 low_bound = 0x1c;
757 up_bound = 0x20;
758 } else {
759 low_bound = 0x1c;
760 up_bound = 0x1c;
761 }
762
763 if (test_bit(CONFIG_EXTERNAL_LNA_BG, &rt2x00dev->flags)) {
764 low_bound += 0x14;
765 up_bound += 0x10;
766 }
767 }
768
769 /*
770 * If we are not associated, we should go straight to the
771 * dynamic CCA tuning.
772 */
773 if (!rt2x00dev->intf_associated)
774 goto dynamic_cca_tune;
775
776 /*
777 * Special big-R17 for very short distance
778 */
779 if (rssi > -35) {
780 if (r17 != 0x60)
781 rt73usb_bbp_write(rt2x00dev, 17, 0x60);
782 return;
783 }
784
785 /*
786 * Special big-R17 for short distance
787 */
788 if (rssi >= -58) {
789 if (r17 != up_bound)
790 rt73usb_bbp_write(rt2x00dev, 17, up_bound);
791 return;
792 }
793
794 /*
795 * Special big-R17 for middle-short distance
796 */
797 if (rssi >= -66) {
798 low_bound += 0x10;
799 if (r17 != low_bound)
800 rt73usb_bbp_write(rt2x00dev, 17, low_bound);
801 return;
802 }
803
804 /*
805 * Special mid-R17 for middle distance
806 */
807 if (rssi >= -74) {
808 if (r17 != (low_bound + 0x10))
809 rt73usb_bbp_write(rt2x00dev, 17, low_bound + 0x08);
810 return;
811 }
812
813 /*
814 * Special case: Change up_bound based on the rssi.
815 * Lower up_bound when rssi is weaker then -74 dBm.
816 */
817 up_bound -= 2 * (-74 - rssi);
818 if (low_bound > up_bound)
819 up_bound = low_bound;
820
821 if (r17 > up_bound) {
822 rt73usb_bbp_write(rt2x00dev, 17, up_bound);
823 return;
824 }
825
826 dynamic_cca_tune:
827
828 /*
829 * r17 does not yet exceed upper limit, continue and base
830 * the r17 tuning on the false CCA count.
831 */
832 if (rt2x00dev->link.qual.false_cca > 512 && r17 < up_bound) {
833 r17 += 4;
834 if (r17 > up_bound)
835 r17 = up_bound;
836 rt73usb_bbp_write(rt2x00dev, 17, r17);
837 } else if (rt2x00dev->link.qual.false_cca < 100 && r17 > low_bound) {
838 r17 -= 4;
839 if (r17 < low_bound)
840 r17 = low_bound;
841 rt73usb_bbp_write(rt2x00dev, 17, r17);
842 }
843 }
844
845 /*
846 * Firmware functions
847 */
848 static char *rt73usb_get_firmware_name(struct rt2x00_dev *rt2x00dev)
849 {
850 return FIRMWARE_RT2571;
851 }
852
853 static u16 rt73usb_get_firmware_crc(void *data, const size_t len)
854 {
855 u16 crc;
856
857 /*
858 * Use the crc itu-t algorithm.
859 * The last 2 bytes in the firmware array are the crc checksum itself,
860 * this means that we should never pass those 2 bytes to the crc
861 * algorithm.
862 */
863 crc = crc_itu_t(0, data, len - 2);
864 crc = crc_itu_t_byte(crc, 0);
865 crc = crc_itu_t_byte(crc, 0);
866
867 return crc;
868 }
869
870 static int rt73usb_load_firmware(struct rt2x00_dev *rt2x00dev, void *data,
871 const size_t len)
872 {
873 unsigned int i;
874 int status;
875 u32 reg;
876 char *ptr = data;
877 char *cache;
878 int buflen;
879
880 /*
881 * Wait for stable hardware.
882 */
883 for (i = 0; i < 100; i++) {
884 rt73usb_register_read(rt2x00dev, MAC_CSR0, &reg);
885 if (reg)
886 break;
887 msleep(1);
888 }
889
890 if (!reg) {
891 ERROR(rt2x00dev, "Unstable hardware.\n");
892 return -EBUSY;
893 }
894
895 /*
896 * Write firmware to device.
897 * We setup a seperate cache for this action,
898 * since we are going to write larger chunks of data
899 * then normally used cache size.
900 */
901 cache = kmalloc(CSR_CACHE_SIZE_FIRMWARE, GFP_KERNEL);
902 if (!cache) {
903 ERROR(rt2x00dev, "Failed to allocate firmware cache.\n");
904 return -ENOMEM;
905 }
906
907 for (i = 0; i < len; i += CSR_CACHE_SIZE_FIRMWARE) {
908 buflen = min_t(int, len - i, CSR_CACHE_SIZE_FIRMWARE);
909
910 memcpy(cache, ptr, buflen);
911
912 rt2x00usb_vendor_request(rt2x00dev, USB_MULTI_WRITE,
913 USB_VENDOR_REQUEST_OUT,
914 FIRMWARE_IMAGE_BASE + i, 0,
915 cache, buflen,
916 REGISTER_TIMEOUT32(buflen));
917
918 ptr += buflen;
919 }
920
921 kfree(cache);
922
923 /*
924 * Send firmware request to device to load firmware,
925 * we need to specify a long timeout time.
926 */
927 status = rt2x00usb_vendor_request_sw(rt2x00dev, USB_DEVICE_MODE,
928 0, USB_MODE_FIRMWARE,
929 REGISTER_TIMEOUT_FIRMWARE);
930 if (status < 0) {
931 ERROR(rt2x00dev, "Failed to write Firmware to device.\n");
932 return status;
933 }
934
935 return 0;
936 }
937
938 /*
939 * Initialization functions.
940 */
941 static int rt73usb_init_registers(struct rt2x00_dev *rt2x00dev)
942 {
943 u32 reg;
944
945 rt73usb_register_read(rt2x00dev, TXRX_CSR0, &reg);
946 rt2x00_set_field32(&reg, TXRX_CSR0_AUTO_TX_SEQ, 1);
947 rt2x00_set_field32(&reg, TXRX_CSR0_DISABLE_RX, 0);
948 rt2x00_set_field32(&reg, TXRX_CSR0_TX_WITHOUT_WAITING, 0);
949 rt73usb_register_write(rt2x00dev, TXRX_CSR0, reg);
950
951 rt73usb_register_read(rt2x00dev, TXRX_CSR1, &reg);
952 rt2x00_set_field32(&reg, TXRX_CSR1_BBP_ID0, 47); /* CCK Signal */
953 rt2x00_set_field32(&reg, TXRX_CSR1_BBP_ID0_VALID, 1);
954 rt2x00_set_field32(&reg, TXRX_CSR1_BBP_ID1, 30); /* Rssi */
955 rt2x00_set_field32(&reg, TXRX_CSR1_BBP_ID1_VALID, 1);
956 rt2x00_set_field32(&reg, TXRX_CSR1_BBP_ID2, 42); /* OFDM Rate */
957 rt2x00_set_field32(&reg, TXRX_CSR1_BBP_ID2_VALID, 1);
958 rt2x00_set_field32(&reg, TXRX_CSR1_BBP_ID3, 30); /* Rssi */
959 rt2x00_set_field32(&reg, TXRX_CSR1_BBP_ID3_VALID, 1);
960 rt73usb_register_write(rt2x00dev, TXRX_CSR1, reg);
961
962 /*
963 * CCK TXD BBP registers
964 */
965 rt73usb_register_read(rt2x00dev, TXRX_CSR2, &reg);
966 rt2x00_set_field32(&reg, TXRX_CSR2_BBP_ID0, 13);
967 rt2x00_set_field32(&reg, TXRX_CSR2_BBP_ID0_VALID, 1);
968 rt2x00_set_field32(&reg, TXRX_CSR2_BBP_ID1, 12);
969 rt2x00_set_field32(&reg, TXRX_CSR2_BBP_ID1_VALID, 1);
970 rt2x00_set_field32(&reg, TXRX_CSR2_BBP_ID2, 11);
971 rt2x00_set_field32(&reg, TXRX_CSR2_BBP_ID2_VALID, 1);
972 rt2x00_set_field32(&reg, TXRX_CSR2_BBP_ID3, 10);
973 rt2x00_set_field32(&reg, TXRX_CSR2_BBP_ID3_VALID, 1);
974 rt73usb_register_write(rt2x00dev, TXRX_CSR2, reg);
975
976 /*
977 * OFDM TXD BBP registers
978 */
979 rt73usb_register_read(rt2x00dev, TXRX_CSR3, &reg);
980 rt2x00_set_field32(&reg, TXRX_CSR3_BBP_ID0, 7);
981 rt2x00_set_field32(&reg, TXRX_CSR3_BBP_ID0_VALID, 1);
982 rt2x00_set_field32(&reg, TXRX_CSR3_BBP_ID1, 6);
983 rt2x00_set_field32(&reg, TXRX_CSR3_BBP_ID1_VALID, 1);
984 rt2x00_set_field32(&reg, TXRX_CSR3_BBP_ID2, 5);
985 rt2x00_set_field32(&reg, TXRX_CSR3_BBP_ID2_VALID, 1);
986 rt73usb_register_write(rt2x00dev, TXRX_CSR3, reg);
987
988 rt73usb_register_read(rt2x00dev, TXRX_CSR7, &reg);
989 rt2x00_set_field32(&reg, TXRX_CSR7_ACK_CTS_6MBS, 59);
990 rt2x00_set_field32(&reg, TXRX_CSR7_ACK_CTS_9MBS, 53);
991 rt2x00_set_field32(&reg, TXRX_CSR7_ACK_CTS_12MBS, 49);
992 rt2x00_set_field32(&reg, TXRX_CSR7_ACK_CTS_18MBS, 46);
993 rt73usb_register_write(rt2x00dev, TXRX_CSR7, reg);
994
995 rt73usb_register_read(rt2x00dev, TXRX_CSR8, &reg);
996 rt2x00_set_field32(&reg, TXRX_CSR8_ACK_CTS_24MBS, 44);
997 rt2x00_set_field32(&reg, TXRX_CSR8_ACK_CTS_36MBS, 42);
998 rt2x00_set_field32(&reg, TXRX_CSR8_ACK_CTS_48MBS, 42);
999 rt2x00_set_field32(&reg, TXRX_CSR8_ACK_CTS_54MBS, 42);
1000 rt73usb_register_write(rt2x00dev, TXRX_CSR8, reg);
1001
1002 rt73usb_register_write(rt2x00dev, TXRX_CSR15, 0x0000000f);
1003
1004 rt73usb_register_read(rt2x00dev, MAC_CSR6, &reg);
1005 rt2x00_set_field32(&reg, MAC_CSR6_MAX_FRAME_UNIT, 0xfff);
1006 rt73usb_register_write(rt2x00dev, MAC_CSR6, reg);
1007
1008 rt73usb_register_write(rt2x00dev, MAC_CSR10, 0x00000718);
1009
1010 if (rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_AWAKE))
1011 return -EBUSY;
1012
1013 rt73usb_register_write(rt2x00dev, MAC_CSR13, 0x00007f00);
1014
1015 /*
1016 * Invalidate all Shared Keys (SEC_CSR0),
1017 * and clear the Shared key Cipher algorithms (SEC_CSR1 & SEC_CSR5)
1018 */
1019 rt73usb_register_write(rt2x00dev, SEC_CSR0, 0x00000000);
1020 rt73usb_register_write(rt2x00dev, SEC_CSR1, 0x00000000);
1021 rt73usb_register_write(rt2x00dev, SEC_CSR5, 0x00000000);
1022
1023 reg = 0x000023b0;
1024 if (rt2x00_rf(&rt2x00dev->chip, RF5225) ||
1025 rt2x00_rf(&rt2x00dev->chip, RF2527))
1026 rt2x00_set_field32(&reg, PHY_CSR1_RF_RPI, 1);
1027 rt73usb_register_write(rt2x00dev, PHY_CSR1, reg);
1028
1029 rt73usb_register_write(rt2x00dev, PHY_CSR5, 0x00040a06);
1030 rt73usb_register_write(rt2x00dev, PHY_CSR6, 0x00080606);
1031 rt73usb_register_write(rt2x00dev, PHY_CSR7, 0x00000408);
1032
1033 rt73usb_register_read(rt2x00dev, AC_TXOP_CSR0, &reg);
1034 rt2x00_set_field32(&reg, AC_TXOP_CSR0_AC0_TX_OP, 0);
1035 rt2x00_set_field32(&reg, AC_TXOP_CSR0_AC1_TX_OP, 0);
1036 rt73usb_register_write(rt2x00dev, AC_TXOP_CSR0, reg);
1037
1038 rt73usb_register_read(rt2x00dev, AC_TXOP_CSR1, &reg);
1039 rt2x00_set_field32(&reg, AC_TXOP_CSR1_AC2_TX_OP, 192);
1040 rt2x00_set_field32(&reg, AC_TXOP_CSR1_AC3_TX_OP, 48);
1041 rt73usb_register_write(rt2x00dev, AC_TXOP_CSR1, reg);
1042
1043 rt73usb_register_read(rt2x00dev, MAC_CSR9, &reg);
1044 rt2x00_set_field32(&reg, MAC_CSR9_CW_SELECT, 0);
1045 rt73usb_register_write(rt2x00dev, MAC_CSR9, reg);
1046
1047 /*
1048 * Clear all beacons
1049 * For the Beacon base registers we only need to clear
1050 * the first byte since that byte contains the VALID and OWNER
1051 * bits which (when set to 0) will invalidate the entire beacon.
1052 */
1053 rt73usb_register_write(rt2x00dev, HW_BEACON_BASE0, 0);
1054 rt73usb_register_write(rt2x00dev, HW_BEACON_BASE1, 0);
1055 rt73usb_register_write(rt2x00dev, HW_BEACON_BASE2, 0);
1056 rt73usb_register_write(rt2x00dev, HW_BEACON_BASE3, 0);
1057
1058 /*
1059 * We must clear the error counters.
1060 * These registers are cleared on read,
1061 * so we may pass a useless variable to store the value.
1062 */
1063 rt73usb_register_read(rt2x00dev, STA_CSR0, &reg);
1064 rt73usb_register_read(rt2x00dev, STA_CSR1, &reg);
1065 rt73usb_register_read(rt2x00dev, STA_CSR2, &reg);
1066
1067 /*
1068 * Reset MAC and BBP registers.
1069 */
1070 rt73usb_register_read(rt2x00dev, MAC_CSR1, &reg);
1071 rt2x00_set_field32(&reg, MAC_CSR1_SOFT_RESET, 1);
1072 rt2x00_set_field32(&reg, MAC_CSR1_BBP_RESET, 1);
1073 rt73usb_register_write(rt2x00dev, MAC_CSR1, reg);
1074
1075 rt73usb_register_read(rt2x00dev, MAC_CSR1, &reg);
1076 rt2x00_set_field32(&reg, MAC_CSR1_SOFT_RESET, 0);
1077 rt2x00_set_field32(&reg, MAC_CSR1_BBP_RESET, 0);
1078 rt73usb_register_write(rt2x00dev, MAC_CSR1, reg);
1079
1080 rt73usb_register_read(rt2x00dev, MAC_CSR1, &reg);
1081 rt2x00_set_field32(&reg, MAC_CSR1_HOST_READY, 1);
1082 rt73usb_register_write(rt2x00dev, MAC_CSR1, reg);
1083
1084 return 0;
1085 }
1086
1087 static int rt73usb_init_bbp(struct rt2x00_dev *rt2x00dev)
1088 {
1089 unsigned int i;
1090 u16 eeprom;
1091 u8 reg_id;
1092 u8 value;
1093
1094 for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
1095 rt73usb_bbp_read(rt2x00dev, 0, &value);
1096 if ((value != 0xff) && (value != 0x00))
1097 goto continue_csr_init;
1098 NOTICE(rt2x00dev, "Waiting for BBP register.\n");
1099 udelay(REGISTER_BUSY_DELAY);
1100 }
1101
1102 ERROR(rt2x00dev, "BBP register access failed, aborting.\n");
1103 return -EACCES;
1104
1105 continue_csr_init:
1106 rt73usb_bbp_write(rt2x00dev, 3, 0x80);
1107 rt73usb_bbp_write(rt2x00dev, 15, 0x30);
1108 rt73usb_bbp_write(rt2x00dev, 21, 0xc8);
1109 rt73usb_bbp_write(rt2x00dev, 22, 0x38);
1110 rt73usb_bbp_write(rt2x00dev, 23, 0x06);
1111 rt73usb_bbp_write(rt2x00dev, 24, 0xfe);
1112 rt73usb_bbp_write(rt2x00dev, 25, 0x0a);
1113 rt73usb_bbp_write(rt2x00dev, 26, 0x0d);
1114 rt73usb_bbp_write(rt2x00dev, 32, 0x0b);
1115 rt73usb_bbp_write(rt2x00dev, 34, 0x12);
1116 rt73usb_bbp_write(rt2x00dev, 37, 0x07);
1117 rt73usb_bbp_write(rt2x00dev, 39, 0xf8);
1118 rt73usb_bbp_write(rt2x00dev, 41, 0x60);
1119 rt73usb_bbp_write(rt2x00dev, 53, 0x10);
1120 rt73usb_bbp_write(rt2x00dev, 54, 0x18);
1121 rt73usb_bbp_write(rt2x00dev, 60, 0x10);
1122 rt73usb_bbp_write(rt2x00dev, 61, 0x04);
1123 rt73usb_bbp_write(rt2x00dev, 62, 0x04);
1124 rt73usb_bbp_write(rt2x00dev, 75, 0xfe);
1125 rt73usb_bbp_write(rt2x00dev, 86, 0xfe);
1126 rt73usb_bbp_write(rt2x00dev, 88, 0xfe);
1127 rt73usb_bbp_write(rt2x00dev, 90, 0x0f);
1128 rt73usb_bbp_write(rt2x00dev, 99, 0x00);
1129 rt73usb_bbp_write(rt2x00dev, 102, 0x16);
1130 rt73usb_bbp_write(rt2x00dev, 107, 0x04);
1131
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 rt73usb_bbp_write(rt2x00dev, reg_id, value);
1139 }
1140 }
1141
1142 return 0;
1143 }
1144
1145 /*
1146 * Device state switch handlers.
1147 */
1148 static void rt73usb_toggle_rx(struct rt2x00_dev *rt2x00dev,
1149 enum dev_state state)
1150 {
1151 u32 reg;
1152
1153 rt73usb_register_read(rt2x00dev, TXRX_CSR0, &reg);
1154 rt2x00_set_field32(&reg, TXRX_CSR0_DISABLE_RX,
1155 state == STATE_RADIO_RX_OFF);
1156 rt73usb_register_write(rt2x00dev, TXRX_CSR0, reg);
1157 }
1158
1159 static int rt73usb_enable_radio(struct rt2x00_dev *rt2x00dev)
1160 {
1161 /*
1162 * Initialize all registers.
1163 */
1164 if (rt73usb_init_registers(rt2x00dev) ||
1165 rt73usb_init_bbp(rt2x00dev)) {
1166 ERROR(rt2x00dev, "Register initialization failed.\n");
1167 return -EIO;
1168 }
1169
1170 return 0;
1171 }
1172
1173 static void rt73usb_disable_radio(struct rt2x00_dev *rt2x00dev)
1174 {
1175 rt73usb_register_write(rt2x00dev, MAC_CSR10, 0x00001818);
1176
1177 /*
1178 * Disable synchronisation.
1179 */
1180 rt73usb_register_write(rt2x00dev, TXRX_CSR9, 0);
1181
1182 rt2x00usb_disable_radio(rt2x00dev);
1183 }
1184
1185 static int rt73usb_set_state(struct rt2x00_dev *rt2x00dev, enum dev_state state)
1186 {
1187 u32 reg;
1188 unsigned int i;
1189 char put_to_sleep;
1190 char current_state;
1191
1192 put_to_sleep = (state != STATE_AWAKE);
1193
1194 rt73usb_register_read(rt2x00dev, MAC_CSR12, &reg);
1195 rt2x00_set_field32(&reg, MAC_CSR12_FORCE_WAKEUP, !put_to_sleep);
1196 rt2x00_set_field32(&reg, MAC_CSR12_PUT_TO_SLEEP, put_to_sleep);
1197 rt73usb_register_write(rt2x00dev, MAC_CSR12, reg);
1198
1199 /*
1200 * Device is not guaranteed to be in the requested state yet.
1201 * We must wait until the register indicates that the
1202 * device has entered the correct state.
1203 */
1204 for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
1205 rt73usb_register_read(rt2x00dev, MAC_CSR12, &reg);
1206 current_state =
1207 rt2x00_get_field32(reg, MAC_CSR12_BBP_CURRENT_STATE);
1208 if (current_state == !put_to_sleep)
1209 return 0;
1210 msleep(10);
1211 }
1212
1213 NOTICE(rt2x00dev, "Device failed to enter state %d, "
1214 "current device state %d.\n", !put_to_sleep, current_state);
1215
1216 return -EBUSY;
1217 }
1218
1219 static int rt73usb_set_device_state(struct rt2x00_dev *rt2x00dev,
1220 enum dev_state state)
1221 {
1222 int retval = 0;
1223
1224 switch (state) {
1225 case STATE_RADIO_ON:
1226 retval = rt73usb_enable_radio(rt2x00dev);
1227 break;
1228 case STATE_RADIO_OFF:
1229 rt73usb_disable_radio(rt2x00dev);
1230 break;
1231 case STATE_RADIO_RX_ON:
1232 case STATE_RADIO_RX_ON_LINK:
1233 rt73usb_toggle_rx(rt2x00dev, STATE_RADIO_RX_ON);
1234 break;
1235 case STATE_RADIO_RX_OFF:
1236 case STATE_RADIO_RX_OFF_LINK:
1237 rt73usb_toggle_rx(rt2x00dev, STATE_RADIO_RX_OFF);
1238 break;
1239 case STATE_DEEP_SLEEP:
1240 case STATE_SLEEP:
1241 case STATE_STANDBY:
1242 case STATE_AWAKE:
1243 retval = rt73usb_set_state(rt2x00dev, state);
1244 break;
1245 default:
1246 retval = -ENOTSUPP;
1247 break;
1248 }
1249
1250 return retval;
1251 }
1252
1253 /*
1254 * TX descriptor initialization
1255 */
1256 static void rt73usb_write_tx_desc(struct rt2x00_dev *rt2x00dev,
1257 struct sk_buff *skb,
1258 struct txentry_desc *txdesc)
1259 {
1260 struct skb_frame_desc *skbdesc = get_skb_frame_desc(skb);
1261 __le32 *txd = skbdesc->desc;
1262 u32 word;
1263
1264 /*
1265 * Start writing the descriptor words.
1266 */
1267 rt2x00_desc_read(txd, 1, &word);
1268 rt2x00_set_field32(&word, TXD_W1_HOST_Q_ID, txdesc->queue);
1269 rt2x00_set_field32(&word, TXD_W1_AIFSN, txdesc->aifs);
1270 rt2x00_set_field32(&word, TXD_W1_CWMIN, txdesc->cw_min);
1271 rt2x00_set_field32(&word, TXD_W1_CWMAX, txdesc->cw_max);
1272 rt2x00_set_field32(&word, TXD_W1_IV_OFFSET, IEEE80211_HEADER);
1273 rt2x00_set_field32(&word, TXD_W1_HW_SEQUENCE, 1);
1274 rt2x00_desc_write(txd, 1, word);
1275
1276 rt2x00_desc_read(txd, 2, &word);
1277 rt2x00_set_field32(&word, TXD_W2_PLCP_SIGNAL, txdesc->signal);
1278 rt2x00_set_field32(&word, TXD_W2_PLCP_SERVICE, txdesc->service);
1279 rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_LOW, txdesc->length_low);
1280 rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_HIGH, txdesc->length_high);
1281 rt2x00_desc_write(txd, 2, word);
1282
1283 rt2x00_desc_read(txd, 5, &word);
1284 rt2x00_set_field32(&word, TXD_W5_TX_POWER,
1285 TXPOWER_TO_DEV(rt2x00dev->tx_power));
1286 rt2x00_set_field32(&word, TXD_W5_WAITING_DMA_DONE_INT, 1);
1287 rt2x00_desc_write(txd, 5, word);
1288
1289 rt2x00_desc_read(txd, 0, &word);
1290 rt2x00_set_field32(&word, TXD_W0_BURST,
1291 test_bit(ENTRY_TXD_BURST, &txdesc->flags));
1292 rt2x00_set_field32(&word, TXD_W0_VALID, 1);
1293 rt2x00_set_field32(&word, TXD_W0_MORE_FRAG,
1294 test_bit(ENTRY_TXD_MORE_FRAG, &txdesc->flags));
1295 rt2x00_set_field32(&word, TXD_W0_ACK,
1296 test_bit(ENTRY_TXD_ACK, &txdesc->flags));
1297 rt2x00_set_field32(&word, TXD_W0_TIMESTAMP,
1298 test_bit(ENTRY_TXD_REQ_TIMESTAMP, &txdesc->flags));
1299 rt2x00_set_field32(&word, TXD_W0_OFDM,
1300 test_bit(ENTRY_TXD_OFDM_RATE, &txdesc->flags));
1301 rt2x00_set_field32(&word, TXD_W0_IFS, txdesc->ifs);
1302 rt2x00_set_field32(&word, TXD_W0_RETRY_MODE,
1303 test_bit(ENTRY_TXD_RETRY_MODE, &txdesc->flags));
1304 rt2x00_set_field32(&word, TXD_W0_TKIP_MIC, 0);
1305 rt2x00_set_field32(&word, TXD_W0_DATABYTE_COUNT, skbdesc->data_len);
1306 rt2x00_set_field32(&word, TXD_W0_BURST2,
1307 test_bit(ENTRY_TXD_BURST, &txdesc->flags));
1308 rt2x00_set_field32(&word, TXD_W0_CIPHER_ALG, CIPHER_NONE);
1309 rt2x00_desc_write(txd, 0, word);
1310 }
1311
1312 static int rt73usb_get_tx_data_len(struct rt2x00_dev *rt2x00dev,
1313 struct sk_buff *skb)
1314 {
1315 int length;
1316
1317 /*
1318 * The length _must_ be a multiple of 4,
1319 * but it must _not_ be a multiple of the USB packet size.
1320 */
1321 length = roundup(skb->len, 4);
1322 length += (4 * !(length % rt2x00dev->usb_maxpacket));
1323
1324 return length;
1325 }
1326
1327 /*
1328 * TX data initialization
1329 */
1330 static void rt73usb_kick_tx_queue(struct rt2x00_dev *rt2x00dev,
1331 const enum data_queue_qid queue)
1332 {
1333 u32 reg;
1334
1335 if (queue != QID_BEACON)
1336 return;
1337
1338 /*
1339 * For Wi-Fi faily generated beacons between participating stations.
1340 * Set TBTT phase adaptive adjustment step to 8us (default 16us)
1341 */
1342 rt73usb_register_write(rt2x00dev, TXRX_CSR10, 0x00001008);
1343
1344 rt73usb_register_read(rt2x00dev, TXRX_CSR9, &reg);
1345 if (!rt2x00_get_field32(reg, TXRX_CSR9_BEACON_GEN)) {
1346 rt2x00_set_field32(&reg, TXRX_CSR9_TSF_TICKING, 1);
1347 rt2x00_set_field32(&reg, TXRX_CSR9_TBTT_ENABLE, 1);
1348 rt2x00_set_field32(&reg, TXRX_CSR9_BEACON_GEN, 1);
1349 rt73usb_register_write(rt2x00dev, TXRX_CSR9, reg);
1350 }
1351 }
1352
1353 /*
1354 * RX control handlers
1355 */
1356 static int rt73usb_agc_to_rssi(struct rt2x00_dev *rt2x00dev, int rxd_w1)
1357 {
1358 u16 eeprom;
1359 u8 offset;
1360 u8 lna;
1361
1362 lna = rt2x00_get_field32(rxd_w1, RXD_W1_RSSI_LNA);
1363 switch (lna) {
1364 case 3:
1365 offset = 90;
1366 break;
1367 case 2:
1368 offset = 74;
1369 break;
1370 case 1:
1371 offset = 64;
1372 break;
1373 default:
1374 return 0;
1375 }
1376
1377 if (rt2x00dev->rx_status.band == IEEE80211_BAND_5GHZ) {
1378 if (test_bit(CONFIG_EXTERNAL_LNA_A, &rt2x00dev->flags)) {
1379 if (lna == 3 || lna == 2)
1380 offset += 10;
1381 } else {
1382 if (lna == 3)
1383 offset += 6;
1384 else if (lna == 2)
1385 offset += 8;
1386 }
1387
1388 rt2x00_eeprom_read(rt2x00dev, EEPROM_RSSI_OFFSET_A, &eeprom);
1389 offset -= rt2x00_get_field16(eeprom, EEPROM_RSSI_OFFSET_A_1);
1390 } else {
1391 if (test_bit(CONFIG_EXTERNAL_LNA_BG, &rt2x00dev->flags))
1392 offset += 14;
1393
1394 rt2x00_eeprom_read(rt2x00dev, EEPROM_RSSI_OFFSET_BG, &eeprom);
1395 offset -= rt2x00_get_field16(eeprom, EEPROM_RSSI_OFFSET_BG_1);
1396 }
1397
1398 return rt2x00_get_field32(rxd_w1, RXD_W1_RSSI_AGC) * 2 - offset;
1399 }
1400
1401 static void rt73usb_fill_rxdone(struct queue_entry *entry,
1402 struct rxdone_entry_desc *rxdesc)
1403 {
1404 struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
1405 __le32 *rxd = (__le32 *)entry->skb->data;
1406 u32 word0;
1407 u32 word1;
1408
1409 /*
1410 * Copy descriptor to the skb->cb array, this has 2 benefits:
1411 * 1) Each descriptor word is 4 byte aligned.
1412 * 2) Descriptor is safe from moving of frame data in rt2x00usb.
1413 */
1414 skbdesc->desc_len =
1415 min_t(u16, entry->queue->desc_size, sizeof(entry->skb->cb));
1416 memcpy(entry->skb->cb, rxd, skbdesc->desc_len);
1417 skbdesc->desc = entry->skb->cb;
1418 rxd = (__le32 *)skbdesc->desc;
1419
1420 /*
1421 * It is now safe to read the descriptor on all architectures.
1422 */
1423 rt2x00_desc_read(rxd, 0, &word0);
1424 rt2x00_desc_read(rxd, 1, &word1);
1425
1426 rxdesc->flags = 0;
1427 if (rt2x00_get_field32(word0, RXD_W0_CRC_ERROR))
1428 rxdesc->flags |= RX_FLAG_FAILED_FCS_CRC;
1429
1430 /*
1431 * Obtain the status about this packet.
1432 * When frame was received with an OFDM bitrate,
1433 * the signal is the PLCP value. If it was received with
1434 * a CCK bitrate the signal is the rate in 100kbit/s.
1435 */
1436 rxdesc->signal = rt2x00_get_field32(word1, RXD_W1_SIGNAL);
1437 rxdesc->rssi = rt73usb_agc_to_rssi(entry->queue->rt2x00dev, word1);
1438 rxdesc->size = rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT);
1439
1440 rxdesc->dev_flags = 0;
1441 if (rt2x00_get_field32(word0, RXD_W0_OFDM))
1442 rxdesc->dev_flags |= RXDONE_SIGNAL_PLCP;
1443 if (rt2x00_get_field32(word0, RXD_W0_MY_BSS))
1444 rxdesc->dev_flags |= RXDONE_MY_BSS;
1445
1446 /*
1447 * Set skb pointers, and update frame information.
1448 */
1449 skb_pull(entry->skb, entry->queue->desc_size);
1450 skb_trim(entry->skb, rxdesc->size);
1451 skbdesc->data = entry->skb->data;
1452 skbdesc->data_len = rxdesc->size;
1453 }
1454
1455 /*
1456 * Device probe functions.
1457 */
1458 static int rt73usb_validate_eeprom(struct rt2x00_dev *rt2x00dev)
1459 {
1460 u16 word;
1461 u8 *mac;
1462 s8 value;
1463
1464 rt2x00usb_eeprom_read(rt2x00dev, rt2x00dev->eeprom, EEPROM_SIZE);
1465
1466 /*
1467 * Start validation of the data that has been read.
1468 */
1469 mac = rt2x00_eeprom_addr(rt2x00dev, EEPROM_MAC_ADDR_0);
1470 if (!is_valid_ether_addr(mac)) {
1471 DECLARE_MAC_BUF(macbuf);
1472
1473 random_ether_addr(mac);
1474 EEPROM(rt2x00dev, "MAC: %s\n", print_mac(macbuf, mac));
1475 }
1476
1477 rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &word);
1478 if (word == 0xffff) {
1479 rt2x00_set_field16(&word, EEPROM_ANTENNA_NUM, 2);
1480 rt2x00_set_field16(&word, EEPROM_ANTENNA_TX_DEFAULT,
1481 ANTENNA_B);
1482 rt2x00_set_field16(&word, EEPROM_ANTENNA_RX_DEFAULT,
1483 ANTENNA_B);
1484 rt2x00_set_field16(&word, EEPROM_ANTENNA_FRAME_TYPE, 0);
1485 rt2x00_set_field16(&word, EEPROM_ANTENNA_DYN_TXAGC, 0);
1486 rt2x00_set_field16(&word, EEPROM_ANTENNA_HARDWARE_RADIO, 0);
1487 rt2x00_set_field16(&word, EEPROM_ANTENNA_RF_TYPE, RF5226);
1488 rt2x00_eeprom_write(rt2x00dev, EEPROM_ANTENNA, word);
1489 EEPROM(rt2x00dev, "Antenna: 0x%04x\n", word);
1490 }
1491
1492 rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &word);
1493 if (word == 0xffff) {
1494 rt2x00_set_field16(&word, EEPROM_NIC_EXTERNAL_LNA, 0);
1495 rt2x00_eeprom_write(rt2x00dev, EEPROM_NIC, word);
1496 EEPROM(rt2x00dev, "NIC: 0x%04x\n", word);
1497 }
1498
1499 rt2x00_eeprom_read(rt2x00dev, EEPROM_LED, &word);
1500 if (word == 0xffff) {
1501 rt2x00_set_field16(&word, EEPROM_LED_POLARITY_RDY_G, 0);
1502 rt2x00_set_field16(&word, EEPROM_LED_POLARITY_RDY_A, 0);
1503 rt2x00_set_field16(&word, EEPROM_LED_POLARITY_ACT, 0);
1504 rt2x00_set_field16(&word, EEPROM_LED_POLARITY_GPIO_0, 0);
1505 rt2x00_set_field16(&word, EEPROM_LED_POLARITY_GPIO_1, 0);
1506 rt2x00_set_field16(&word, EEPROM_LED_POLARITY_GPIO_2, 0);
1507 rt2x00_set_field16(&word, EEPROM_LED_POLARITY_GPIO_3, 0);
1508 rt2x00_set_field16(&word, EEPROM_LED_POLARITY_GPIO_4, 0);
1509 rt2x00_set_field16(&word, EEPROM_LED_LED_MODE,
1510 LED_MODE_DEFAULT);
1511 rt2x00_eeprom_write(rt2x00dev, EEPROM_LED, word);
1512 EEPROM(rt2x00dev, "Led: 0x%04x\n", word);
1513 }
1514
1515 rt2x00_eeprom_read(rt2x00dev, EEPROM_FREQ, &word);
1516 if (word == 0xffff) {
1517 rt2x00_set_field16(&word, EEPROM_FREQ_OFFSET, 0);
1518 rt2x00_set_field16(&word, EEPROM_FREQ_SEQ, 0);
1519 rt2x00_eeprom_write(rt2x00dev, EEPROM_FREQ, word);
1520 EEPROM(rt2x00dev, "Freq: 0x%04x\n", word);
1521 }
1522
1523 rt2x00_eeprom_read(rt2x00dev, EEPROM_RSSI_OFFSET_BG, &word);
1524 if (word == 0xffff) {
1525 rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_BG_1, 0);
1526 rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_BG_2, 0);
1527 rt2x00_eeprom_write(rt2x00dev, EEPROM_RSSI_OFFSET_BG, word);
1528 EEPROM(rt2x00dev, "RSSI OFFSET BG: 0x%04x\n", word);
1529 } else {
1530 value = rt2x00_get_field16(word, EEPROM_RSSI_OFFSET_BG_1);
1531 if (value < -10 || value > 10)
1532 rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_BG_1, 0);
1533 value = rt2x00_get_field16(word, EEPROM_RSSI_OFFSET_BG_2);
1534 if (value < -10 || value > 10)
1535 rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_BG_2, 0);
1536 rt2x00_eeprom_write(rt2x00dev, EEPROM_RSSI_OFFSET_BG, word);
1537 }
1538
1539 rt2x00_eeprom_read(rt2x00dev, EEPROM_RSSI_OFFSET_A, &word);
1540 if (word == 0xffff) {
1541 rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_A_1, 0);
1542 rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_A_2, 0);
1543 rt2x00_eeprom_write(rt2x00dev, EEPROM_RSSI_OFFSET_A, word);
1544 EEPROM(rt2x00dev, "RSSI OFFSET A: 0x%04x\n", word);
1545 } else {
1546 value = rt2x00_get_field16(word, EEPROM_RSSI_OFFSET_A_1);
1547 if (value < -10 || value > 10)
1548 rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_A_1, 0);
1549 value = rt2x00_get_field16(word, EEPROM_RSSI_OFFSET_A_2);
1550 if (value < -10 || value > 10)
1551 rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_A_2, 0);
1552 rt2x00_eeprom_write(rt2x00dev, EEPROM_RSSI_OFFSET_A, word);
1553 }
1554
1555 return 0;
1556 }
1557
1558 static int rt73usb_init_eeprom(struct rt2x00_dev *rt2x00dev)
1559 {
1560 u32 reg;
1561 u16 value;
1562 u16 eeprom;
1563
1564 /*
1565 * Read EEPROM word for configuration.
1566 */
1567 rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &eeprom);
1568
1569 /*
1570 * Identify RF chipset.
1571 */
1572 value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RF_TYPE);
1573 rt73usb_register_read(rt2x00dev, MAC_CSR0, &reg);
1574 rt2x00_set_chip(rt2x00dev, RT2571, value, reg);
1575
1576 if (!rt2x00_check_rev(&rt2x00dev->chip, 0x25730)) {
1577 ERROR(rt2x00dev, "Invalid RT chipset detected.\n");
1578 return -ENODEV;
1579 }
1580
1581 if (!rt2x00_rf(&rt2x00dev->chip, RF5226) &&
1582 !rt2x00_rf(&rt2x00dev->chip, RF2528) &&
1583 !rt2x00_rf(&rt2x00dev->chip, RF5225) &&
1584 !rt2x00_rf(&rt2x00dev->chip, RF2527)) {
1585 ERROR(rt2x00dev, "Invalid RF chipset detected.\n");
1586 return -ENODEV;
1587 }
1588
1589 /*
1590 * Identify default antenna configuration.
1591 */
1592 rt2x00dev->default_ant.tx =
1593 rt2x00_get_field16(eeprom, EEPROM_ANTENNA_TX_DEFAULT);
1594 rt2x00dev->default_ant.rx =
1595 rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RX_DEFAULT);
1596
1597 /*
1598 * Read the Frame type.
1599 */
1600 if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_FRAME_TYPE))
1601 __set_bit(CONFIG_FRAME_TYPE, &rt2x00dev->flags);
1602
1603 /*
1604 * Read frequency offset.
1605 */
1606 rt2x00_eeprom_read(rt2x00dev, EEPROM_FREQ, &eeprom);
1607 rt2x00dev->freq_offset = rt2x00_get_field16(eeprom, EEPROM_FREQ_OFFSET);
1608
1609 /*
1610 * Read external LNA informations.
1611 */
1612 rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &eeprom);
1613
1614 if (rt2x00_get_field16(eeprom, EEPROM_NIC_EXTERNAL_LNA)) {
1615 __set_bit(CONFIG_EXTERNAL_LNA_A, &rt2x00dev->flags);
1616 __set_bit(CONFIG_EXTERNAL_LNA_BG, &rt2x00dev->flags);
1617 }
1618
1619 /*
1620 * Store led settings, for correct led behaviour.
1621 */
1622 #ifdef CONFIG_RT73USB_LEDS
1623 rt2x00_eeprom_read(rt2x00dev, EEPROM_LED, &eeprom);
1624
1625 rt2x00dev->led_radio.rt2x00dev = rt2x00dev;
1626 rt2x00dev->led_radio.type = LED_TYPE_RADIO;
1627 rt2x00dev->led_radio.led_dev.brightness_set =
1628 rt73usb_brightness_set;
1629 rt2x00dev->led_radio.led_dev.blink_set =
1630 rt73usb_blink_set;
1631 rt2x00dev->led_radio.flags = LED_INITIALIZED;
1632
1633 rt2x00dev->led_assoc.rt2x00dev = rt2x00dev;
1634 rt2x00dev->led_assoc.type = LED_TYPE_ASSOC;
1635 rt2x00dev->led_assoc.led_dev.brightness_set =
1636 rt73usb_brightness_set;
1637 rt2x00dev->led_assoc.led_dev.blink_set =
1638 rt73usb_blink_set;
1639 rt2x00dev->led_assoc.flags = LED_INITIALIZED;
1640
1641 if (value == LED_MODE_SIGNAL_STRENGTH) {
1642 rt2x00dev->led_qual.rt2x00dev = rt2x00dev;
1643 rt2x00dev->led_qual.type = LED_TYPE_QUALITY;
1644 rt2x00dev->led_qual.led_dev.brightness_set =
1645 rt73usb_brightness_set;
1646 rt2x00dev->led_qual.led_dev.blink_set =
1647 rt73usb_blink_set;
1648 rt2x00dev->led_qual.flags = LED_INITIALIZED;
1649 }
1650
1651 rt2x00_set_field16(&rt2x00dev->led_mcu_reg, MCU_LEDCS_LED_MODE, value);
1652 rt2x00_set_field16(&rt2x00dev->led_mcu_reg, MCU_LEDCS_POLARITY_GPIO_0,
1653 rt2x00_get_field16(eeprom,
1654 EEPROM_LED_POLARITY_GPIO_0));
1655 rt2x00_set_field16(&rt2x00dev->led_mcu_reg, MCU_LEDCS_POLARITY_GPIO_1,
1656 rt2x00_get_field16(eeprom,
1657 EEPROM_LED_POLARITY_GPIO_1));
1658 rt2x00_set_field16(&rt2x00dev->led_mcu_reg, MCU_LEDCS_POLARITY_GPIO_2,
1659 rt2x00_get_field16(eeprom,
1660 EEPROM_LED_POLARITY_GPIO_2));
1661 rt2x00_set_field16(&rt2x00dev->led_mcu_reg, MCU_LEDCS_POLARITY_GPIO_3,
1662 rt2x00_get_field16(eeprom,
1663 EEPROM_LED_POLARITY_GPIO_3));
1664 rt2x00_set_field16(&rt2x00dev->led_mcu_reg, MCU_LEDCS_POLARITY_GPIO_4,
1665 rt2x00_get_field16(eeprom,
1666 EEPROM_LED_POLARITY_GPIO_4));
1667 rt2x00_set_field16(&rt2x00dev->led_mcu_reg, MCU_LEDCS_POLARITY_ACT,
1668 rt2x00_get_field16(eeprom, EEPROM_LED_POLARITY_ACT));
1669 rt2x00_set_field16(&rt2x00dev->led_mcu_reg, MCU_LEDCS_POLARITY_READY_BG,
1670 rt2x00_get_field16(eeprom,
1671 EEPROM_LED_POLARITY_RDY_G));
1672 rt2x00_set_field16(&rt2x00dev->led_mcu_reg, MCU_LEDCS_POLARITY_READY_A,
1673 rt2x00_get_field16(eeprom,
1674 EEPROM_LED_POLARITY_RDY_A));
1675 #endif /* CONFIG_RT73USB_LEDS */
1676
1677 return 0;
1678 }
1679
1680 /*
1681 * RF value list for RF2528
1682 * Supports: 2.4 GHz
1683 */
1684 static const struct rf_channel rf_vals_bg_2528[] = {
1685 { 1, 0x00002c0c, 0x00000786, 0x00068255, 0x000fea0b },
1686 { 2, 0x00002c0c, 0x00000786, 0x00068255, 0x000fea1f },
1687 { 3, 0x00002c0c, 0x0000078a, 0x00068255, 0x000fea0b },
1688 { 4, 0x00002c0c, 0x0000078a, 0x00068255, 0x000fea1f },
1689 { 5, 0x00002c0c, 0x0000078e, 0x00068255, 0x000fea0b },
1690 { 6, 0x00002c0c, 0x0000078e, 0x00068255, 0x000fea1f },
1691 { 7, 0x00002c0c, 0x00000792, 0x00068255, 0x000fea0b },
1692 { 8, 0x00002c0c, 0x00000792, 0x00068255, 0x000fea1f },
1693 { 9, 0x00002c0c, 0x00000796, 0x00068255, 0x000fea0b },
1694 { 10, 0x00002c0c, 0x00000796, 0x00068255, 0x000fea1f },
1695 { 11, 0x00002c0c, 0x0000079a, 0x00068255, 0x000fea0b },
1696 { 12, 0x00002c0c, 0x0000079a, 0x00068255, 0x000fea1f },
1697 { 13, 0x00002c0c, 0x0000079e, 0x00068255, 0x000fea0b },
1698 { 14, 0x00002c0c, 0x000007a2, 0x00068255, 0x000fea13 },
1699 };
1700
1701 /*
1702 * RF value list for RF5226
1703 * Supports: 2.4 GHz & 5.2 GHz
1704 */
1705 static const struct rf_channel rf_vals_5226[] = {
1706 { 1, 0x00002c0c, 0x00000786, 0x00068255, 0x000fea0b },
1707 { 2, 0x00002c0c, 0x00000786, 0x00068255, 0x000fea1f },
1708 { 3, 0x00002c0c, 0x0000078a, 0x00068255, 0x000fea0b },
1709 { 4, 0x00002c0c, 0x0000078a, 0x00068255, 0x000fea1f },
1710 { 5, 0x00002c0c, 0x0000078e, 0x00068255, 0x000fea0b },
1711 { 6, 0x00002c0c, 0x0000078e, 0x00068255, 0x000fea1f },
1712 { 7, 0x00002c0c, 0x00000792, 0x00068255, 0x000fea0b },
1713 { 8, 0x00002c0c, 0x00000792, 0x00068255, 0x000fea1f },
1714 { 9, 0x00002c0c, 0x00000796, 0x00068255, 0x000fea0b },
1715 { 10, 0x00002c0c, 0x00000796, 0x00068255, 0x000fea1f },
1716 { 11, 0x00002c0c, 0x0000079a, 0x00068255, 0x000fea0b },
1717 { 12, 0x00002c0c, 0x0000079a, 0x00068255, 0x000fea1f },
1718 { 13, 0x00002c0c, 0x0000079e, 0x00068255, 0x000fea0b },
1719 { 14, 0x00002c0c, 0x000007a2, 0x00068255, 0x000fea13 },
1720
1721 /* 802.11 UNI / HyperLan 2 */
1722 { 36, 0x00002c0c, 0x0000099a, 0x00098255, 0x000fea23 },
1723 { 40, 0x00002c0c, 0x000009a2, 0x00098255, 0x000fea03 },
1724 { 44, 0x00002c0c, 0x000009a6, 0x00098255, 0x000fea0b },
1725 { 48, 0x00002c0c, 0x000009aa, 0x00098255, 0x000fea13 },
1726 { 52, 0x00002c0c, 0x000009ae, 0x00098255, 0x000fea1b },
1727 { 56, 0x00002c0c, 0x000009b2, 0x00098255, 0x000fea23 },
1728 { 60, 0x00002c0c, 0x000009ba, 0x00098255, 0x000fea03 },
1729 { 64, 0x00002c0c, 0x000009be, 0x00098255, 0x000fea0b },
1730
1731 /* 802.11 HyperLan 2 */
1732 { 100, 0x00002c0c, 0x00000a2a, 0x000b8255, 0x000fea03 },
1733 { 104, 0x00002c0c, 0x00000a2e, 0x000b8255, 0x000fea0b },
1734 { 108, 0x00002c0c, 0x00000a32, 0x000b8255, 0x000fea13 },
1735 { 112, 0x00002c0c, 0x00000a36, 0x000b8255, 0x000fea1b },
1736 { 116, 0x00002c0c, 0x00000a3a, 0x000b8255, 0x000fea23 },
1737 { 120, 0x00002c0c, 0x00000a82, 0x000b8255, 0x000fea03 },
1738 { 124, 0x00002c0c, 0x00000a86, 0x000b8255, 0x000fea0b },
1739 { 128, 0x00002c0c, 0x00000a8a, 0x000b8255, 0x000fea13 },
1740 { 132, 0x00002c0c, 0x00000a8e, 0x000b8255, 0x000fea1b },
1741 { 136, 0x00002c0c, 0x00000a92, 0x000b8255, 0x000fea23 },
1742
1743 /* 802.11 UNII */
1744 { 140, 0x00002c0c, 0x00000a9a, 0x000b8255, 0x000fea03 },
1745 { 149, 0x00002c0c, 0x00000aa2, 0x000b8255, 0x000fea1f },
1746 { 153, 0x00002c0c, 0x00000aa6, 0x000b8255, 0x000fea27 },
1747 { 157, 0x00002c0c, 0x00000aae, 0x000b8255, 0x000fea07 },
1748 { 161, 0x00002c0c, 0x00000ab2, 0x000b8255, 0x000fea0f },
1749 { 165, 0x00002c0c, 0x00000ab6, 0x000b8255, 0x000fea17 },
1750
1751 /* MMAC(Japan)J52 ch 34,38,42,46 */
1752 { 34, 0x00002c0c, 0x0008099a, 0x000da255, 0x000d3a0b },
1753 { 38, 0x00002c0c, 0x0008099e, 0x000da255, 0x000d3a13 },
1754 { 42, 0x00002c0c, 0x000809a2, 0x000da255, 0x000d3a1b },
1755 { 46, 0x00002c0c, 0x000809a6, 0x000da255, 0x000d3a23 },
1756 };
1757
1758 /*
1759 * RF value list for RF5225 & RF2527
1760 * Supports: 2.4 GHz & 5.2 GHz
1761 */
1762 static const struct rf_channel rf_vals_5225_2527[] = {
1763 { 1, 0x00002ccc, 0x00004786, 0x00068455, 0x000ffa0b },
1764 { 2, 0x00002ccc, 0x00004786, 0x00068455, 0x000ffa1f },
1765 { 3, 0x00002ccc, 0x0000478a, 0x00068455, 0x000ffa0b },
1766 { 4, 0x00002ccc, 0x0000478a, 0x00068455, 0x000ffa1f },
1767 { 5, 0x00002ccc, 0x0000478e, 0x00068455, 0x000ffa0b },
1768 { 6, 0x00002ccc, 0x0000478e, 0x00068455, 0x000ffa1f },
1769 { 7, 0x00002ccc, 0x00004792, 0x00068455, 0x000ffa0b },
1770 { 8, 0x00002ccc, 0x00004792, 0x00068455, 0x000ffa1f },
1771 { 9, 0x00002ccc, 0x00004796, 0x00068455, 0x000ffa0b },
1772 { 10, 0x00002ccc, 0x00004796, 0x00068455, 0x000ffa1f },
1773 { 11, 0x00002ccc, 0x0000479a, 0x00068455, 0x000ffa0b },
1774 { 12, 0x00002ccc, 0x0000479a, 0x00068455, 0x000ffa1f },
1775 { 13, 0x00002ccc, 0x0000479e, 0x00068455, 0x000ffa0b },
1776 { 14, 0x00002ccc, 0x000047a2, 0x00068455, 0x000ffa13 },
1777
1778 /* 802.11 UNI / HyperLan 2 */
1779 { 36, 0x00002ccc, 0x0000499a, 0x0009be55, 0x000ffa23 },
1780 { 40, 0x00002ccc, 0x000049a2, 0x0009be55, 0x000ffa03 },
1781 { 44, 0x00002ccc, 0x000049a6, 0x0009be55, 0x000ffa0b },
1782 { 48, 0x00002ccc, 0x000049aa, 0x0009be55, 0x000ffa13 },
1783 { 52, 0x00002ccc, 0x000049ae, 0x0009ae55, 0x000ffa1b },
1784 { 56, 0x00002ccc, 0x000049b2, 0x0009ae55, 0x000ffa23 },
1785 { 60, 0x00002ccc, 0x000049ba, 0x0009ae55, 0x000ffa03 },
1786 { 64, 0x00002ccc, 0x000049be, 0x0009ae55, 0x000ffa0b },
1787
1788 /* 802.11 HyperLan 2 */
1789 { 100, 0x00002ccc, 0x00004a2a, 0x000bae55, 0x000ffa03 },
1790 { 104, 0x00002ccc, 0x00004a2e, 0x000bae55, 0x000ffa0b },
1791 { 108, 0x00002ccc, 0x00004a32, 0x000bae55, 0x000ffa13 },
1792 { 112, 0x00002ccc, 0x00004a36, 0x000bae55, 0x000ffa1b },
1793 { 116, 0x00002ccc, 0x00004a3a, 0x000bbe55, 0x000ffa23 },
1794 { 120, 0x00002ccc, 0x00004a82, 0x000bbe55, 0x000ffa03 },
1795 { 124, 0x00002ccc, 0x00004a86, 0x000bbe55, 0x000ffa0b },
1796 { 128, 0x00002ccc, 0x00004a8a, 0x000bbe55, 0x000ffa13 },
1797 { 132, 0x00002ccc, 0x00004a8e, 0x000bbe55, 0x000ffa1b },
1798 { 136, 0x00002ccc, 0x00004a92, 0x000bbe55, 0x000ffa23 },
1799
1800 /* 802.11 UNII */
1801 { 140, 0x00002ccc, 0x00004a9a, 0x000bbe55, 0x000ffa03 },
1802 { 149, 0x00002ccc, 0x00004aa2, 0x000bbe55, 0x000ffa1f },
1803 { 153, 0x00002ccc, 0x00004aa6, 0x000bbe55, 0x000ffa27 },
1804 { 157, 0x00002ccc, 0x00004aae, 0x000bbe55, 0x000ffa07 },
1805 { 161, 0x00002ccc, 0x00004ab2, 0x000bbe55, 0x000ffa0f },
1806 { 165, 0x00002ccc, 0x00004ab6, 0x000bbe55, 0x000ffa17 },
1807
1808 /* MMAC(Japan)J52 ch 34,38,42,46 */
1809 { 34, 0x00002ccc, 0x0000499a, 0x0009be55, 0x000ffa0b },
1810 { 38, 0x00002ccc, 0x0000499e, 0x0009be55, 0x000ffa13 },
1811 { 42, 0x00002ccc, 0x000049a2, 0x0009be55, 0x000ffa1b },
1812 { 46, 0x00002ccc, 0x000049a6, 0x0009be55, 0x000ffa23 },
1813 };
1814
1815
1816 static void rt73usb_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
1817 {
1818 struct hw_mode_spec *spec = &rt2x00dev->spec;
1819 u8 *txpower;
1820 unsigned int i;
1821
1822 /*
1823 * Initialize all hw fields.
1824 */
1825 rt2x00dev->hw->flags =
1826 IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE |
1827 IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
1828 IEEE80211_HW_SIGNAL_DBM;
1829 rt2x00dev->hw->extra_tx_headroom = TXD_DESC_SIZE;
1830
1831 SET_IEEE80211_DEV(rt2x00dev->hw, &rt2x00dev_usb(rt2x00dev)->dev);
1832 SET_IEEE80211_PERM_ADDR(rt2x00dev->hw,
1833 rt2x00_eeprom_addr(rt2x00dev,
1834 EEPROM_MAC_ADDR_0));
1835
1836 /*
1837 * Convert tx_power array in eeprom.
1838 */
1839 txpower = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_G_START);
1840 for (i = 0; i < 14; i++)
1841 txpower[i] = TXPOWER_FROM_DEV(txpower[i]);
1842
1843 /*
1844 * Initialize hw_mode information.
1845 */
1846 spec->supported_bands = SUPPORT_BAND_2GHZ;
1847 spec->supported_rates = SUPPORT_RATE_CCK | SUPPORT_RATE_OFDM;
1848 spec->tx_power_a = NULL;
1849 spec->tx_power_bg = txpower;
1850 spec->tx_power_default = DEFAULT_TXPOWER;
1851
1852 if (rt2x00_rf(&rt2x00dev->chip, RF2528)) {
1853 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2528);
1854 spec->channels = rf_vals_bg_2528;
1855 } else if (rt2x00_rf(&rt2x00dev->chip, RF5226)) {
1856 spec->supported_bands |= SUPPORT_BAND_5GHZ;
1857 spec->num_channels = ARRAY_SIZE(rf_vals_5226);
1858 spec->channels = rf_vals_5226;
1859 } else if (rt2x00_rf(&rt2x00dev->chip, RF2527)) {
1860 spec->num_channels = 14;
1861 spec->channels = rf_vals_5225_2527;
1862 } else if (rt2x00_rf(&rt2x00dev->chip, RF5225)) {
1863 spec->supported_bands |= SUPPORT_BAND_5GHZ;
1864 spec->num_channels = ARRAY_SIZE(rf_vals_5225_2527);
1865 spec->channels = rf_vals_5225_2527;
1866 }
1867
1868 if (rt2x00_rf(&rt2x00dev->chip, RF5225) ||
1869 rt2x00_rf(&rt2x00dev->chip, RF5226)) {
1870 txpower = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_A_START);
1871 for (i = 0; i < 14; i++)
1872 txpower[i] = TXPOWER_FROM_DEV(txpower[i]);
1873
1874 spec->tx_power_a = txpower;
1875 }
1876 }
1877
1878 static int rt73usb_probe_hw(struct rt2x00_dev *rt2x00dev)
1879 {
1880 int retval;
1881
1882 /*
1883 * Allocate eeprom data.
1884 */
1885 retval = rt73usb_validate_eeprom(rt2x00dev);
1886 if (retval)
1887 return retval;
1888
1889 retval = rt73usb_init_eeprom(rt2x00dev);
1890 if (retval)
1891 return retval;
1892
1893 /*
1894 * Initialize hw specifications.
1895 */
1896 rt73usb_probe_hw_mode(rt2x00dev);
1897
1898 /*
1899 * This device requires firmware.
1900 */
1901 __set_bit(DRIVER_REQUIRE_FIRMWARE, &rt2x00dev->flags);
1902 __set_bit(DRIVER_REQUIRE_SCHEDULED, &rt2x00dev->flags);
1903
1904 /*
1905 * Set the rssi offset.
1906 */
1907 rt2x00dev->rssi_offset = DEFAULT_RSSI_OFFSET;
1908
1909 return 0;
1910 }
1911
1912 /*
1913 * IEEE80211 stack callback functions.
1914 */
1915 static int rt73usb_set_retry_limit(struct ieee80211_hw *hw,
1916 u32 short_retry, u32 long_retry)
1917 {
1918 struct rt2x00_dev *rt2x00dev = hw->priv;
1919 u32 reg;
1920
1921 rt73usb_register_read(rt2x00dev, TXRX_CSR4, &reg);
1922 rt2x00_set_field32(&reg, TXRX_CSR4_LONG_RETRY_LIMIT, long_retry);
1923 rt2x00_set_field32(&reg, TXRX_CSR4_SHORT_RETRY_LIMIT, short_retry);
1924 rt73usb_register_write(rt2x00dev, TXRX_CSR4, reg);
1925
1926 return 0;
1927 }
1928
1929 #if 0
1930 /*
1931 * Mac80211 demands get_tsf must be atomic.
1932 * This is not possible for rt73usb since all register access
1933 * functions require sleeping. Untill mac80211 no longer needs
1934 * get_tsf to be atomic, this function should be disabled.
1935 */
1936 static u64 rt73usb_get_tsf(struct ieee80211_hw *hw)
1937 {
1938 struct rt2x00_dev *rt2x00dev = hw->priv;
1939 u64 tsf;
1940 u32 reg;
1941
1942 rt73usb_register_read(rt2x00dev, TXRX_CSR13, &reg);
1943 tsf = (u64) rt2x00_get_field32(reg, TXRX_CSR13_HIGH_TSFTIMER) << 32;
1944 rt73usb_register_read(rt2x00dev, TXRX_CSR12, &reg);
1945 tsf |= rt2x00_get_field32(reg, TXRX_CSR12_LOW_TSFTIMER);
1946
1947 return tsf;
1948 }
1949 #else
1950 #define rt73usb_get_tsf NULL
1951 #endif
1952
1953 static int rt73usb_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb,
1954 struct ieee80211_tx_control *control)
1955 {
1956 struct rt2x00_dev *rt2x00dev = hw->priv;
1957 struct rt2x00_intf *intf = vif_to_intf(control->vif);
1958 struct skb_frame_desc *skbdesc;
1959 unsigned int beacon_base;
1960 u32 reg;
1961
1962 if (unlikely(!intf->beacon))
1963 return -ENOBUFS;
1964
1965 /*
1966 * Add the descriptor in front of the skb.
1967 */
1968 skb_push(skb, intf->beacon->queue->desc_size);
1969 memset(skb->data, 0, intf->beacon->queue->desc_size);
1970
1971 /*
1972 * Fill in skb descriptor
1973 */
1974 skbdesc = get_skb_frame_desc(skb);
1975 memset(skbdesc, 0, sizeof(*skbdesc));
1976 skbdesc->flags |= FRAME_DESC_DRIVER_GENERATED;
1977 skbdesc->data = skb->data + intf->beacon->queue->desc_size;
1978 skbdesc->data_len = skb->len - intf->beacon->queue->desc_size;
1979 skbdesc->desc = skb->data;
1980 skbdesc->desc_len = intf->beacon->queue->desc_size;
1981 skbdesc->entry = intf->beacon;
1982
1983 /*
1984 * Disable beaconing while we are reloading the beacon data,
1985 * otherwise we might be sending out invalid data.
1986 */
1987 rt73usb_register_read(rt2x00dev, TXRX_CSR9, &reg);
1988 rt2x00_set_field32(&reg, TXRX_CSR9_TSF_TICKING, 0);
1989 rt2x00_set_field32(&reg, TXRX_CSR9_TBTT_ENABLE, 0);
1990 rt2x00_set_field32(&reg, TXRX_CSR9_BEACON_GEN, 0);
1991 rt73usb_register_write(rt2x00dev, TXRX_CSR9, reg);
1992
1993 /*
1994 * Write entire beacon with descriptor to register,
1995 * and kick the beacon generator.
1996 */
1997 rt2x00lib_write_tx_desc(rt2x00dev, skb, control);
1998 beacon_base = HW_BEACON_OFFSET(intf->beacon->entry_idx);
1999 rt2x00usb_vendor_request(rt2x00dev, USB_MULTI_WRITE,
2000 USB_VENDOR_REQUEST_OUT, beacon_base, 0,
2001 skb->data, skb->len,
2002 REGISTER_TIMEOUT32(skb->len));
2003 rt73usb_kick_tx_queue(rt2x00dev, QID_BEACON);
2004
2005 return 0;
2006 }
2007
2008 static const struct ieee80211_ops rt73usb_mac80211_ops = {
2009 .tx = rt2x00mac_tx,
2010 .start = rt2x00mac_start,
2011 .stop = rt2x00mac_stop,
2012 .add_interface = rt2x00mac_add_interface,
2013 .remove_interface = rt2x00mac_remove_interface,
2014 .config = rt2x00mac_config,
2015 .config_interface = rt2x00mac_config_interface,
2016 .configure_filter = rt2x00mac_configure_filter,
2017 .get_stats = rt2x00mac_get_stats,
2018 .set_retry_limit = rt73usb_set_retry_limit,
2019 .bss_info_changed = rt2x00mac_bss_info_changed,
2020 .conf_tx = rt2x00mac_conf_tx,
2021 .get_tx_stats = rt2x00mac_get_tx_stats,
2022 .get_tsf = rt73usb_get_tsf,
2023 .beacon_update = rt73usb_beacon_update,
2024 };
2025
2026 static const struct rt2x00lib_ops rt73usb_rt2x00_ops = {
2027 .probe_hw = rt73usb_probe_hw,
2028 .get_firmware_name = rt73usb_get_firmware_name,
2029 .get_firmware_crc = rt73usb_get_firmware_crc,
2030 .load_firmware = rt73usb_load_firmware,
2031 .initialize = rt2x00usb_initialize,
2032 .uninitialize = rt2x00usb_uninitialize,
2033 .init_rxentry = rt2x00usb_init_rxentry,
2034 .init_txentry = rt2x00usb_init_txentry,
2035 .set_device_state = rt73usb_set_device_state,
2036 .link_stats = rt73usb_link_stats,
2037 .reset_tuner = rt73usb_reset_tuner,
2038 .link_tuner = rt73usb_link_tuner,
2039 .write_tx_desc = rt73usb_write_tx_desc,
2040 .write_tx_data = rt2x00usb_write_tx_data,
2041 .get_tx_data_len = rt73usb_get_tx_data_len,
2042 .kick_tx_queue = rt73usb_kick_tx_queue,
2043 .fill_rxdone = rt73usb_fill_rxdone,
2044 .config_filter = rt73usb_config_filter,
2045 .config_intf = rt73usb_config_intf,
2046 .config_erp = rt73usb_config_erp,
2047 .config = rt73usb_config,
2048 };
2049
2050 static const struct data_queue_desc rt73usb_queue_rx = {
2051 .entry_num = RX_ENTRIES,
2052 .data_size = DATA_FRAME_SIZE,
2053 .desc_size = RXD_DESC_SIZE,
2054 .priv_size = sizeof(struct queue_entry_priv_usb_rx),
2055 };
2056
2057 static const struct data_queue_desc rt73usb_queue_tx = {
2058 .entry_num = TX_ENTRIES,
2059 .data_size = DATA_FRAME_SIZE,
2060 .desc_size = TXD_DESC_SIZE,
2061 .priv_size = sizeof(struct queue_entry_priv_usb_tx),
2062 };
2063
2064 static const struct data_queue_desc rt73usb_queue_bcn = {
2065 .entry_num = 4 * BEACON_ENTRIES,
2066 .data_size = MGMT_FRAME_SIZE,
2067 .desc_size = TXINFO_SIZE,
2068 .priv_size = sizeof(struct queue_entry_priv_usb_tx),
2069 };
2070
2071 static const struct rt2x00_ops rt73usb_ops = {
2072 .name = KBUILD_MODNAME,
2073 .max_sta_intf = 1,
2074 .max_ap_intf = 4,
2075 .eeprom_size = EEPROM_SIZE,
2076 .rf_size = RF_SIZE,
2077 .tx_queues = NUM_TX_QUEUES,
2078 .rx = &rt73usb_queue_rx,
2079 .tx = &rt73usb_queue_tx,
2080 .bcn = &rt73usb_queue_bcn,
2081 .lib = &rt73usb_rt2x00_ops,
2082 .hw = &rt73usb_mac80211_ops,
2083 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
2084 .debugfs = &rt73usb_rt2x00debug,
2085 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
2086 };
2087
2088 /*
2089 * rt73usb module information.
2090 */
2091 static struct usb_device_id rt73usb_device_table[] = {
2092 /* AboCom */
2093 { USB_DEVICE(0x07b8, 0xb21d), USB_DEVICE_DATA(&rt73usb_ops) },
2094 /* Askey */
2095 { USB_DEVICE(0x1690, 0x0722), USB_DEVICE_DATA(&rt73usb_ops) },
2096 /* ASUS */
2097 { USB_DEVICE(0x0b05, 0x1723), USB_DEVICE_DATA(&rt73usb_ops) },
2098 { USB_DEVICE(0x0b05, 0x1724), USB_DEVICE_DATA(&rt73usb_ops) },
2099 /* Belkin */
2100 { USB_DEVICE(0x050d, 0x7050), USB_DEVICE_DATA(&rt73usb_ops) },
2101 { USB_DEVICE(0x050d, 0x705a), USB_DEVICE_DATA(&rt73usb_ops) },
2102 { USB_DEVICE(0x050d, 0x905b), USB_DEVICE_DATA(&rt73usb_ops) },
2103 { USB_DEVICE(0x050d, 0x905c), USB_DEVICE_DATA(&rt73usb_ops) },
2104 /* Billionton */
2105 { USB_DEVICE(0x1631, 0xc019), USB_DEVICE_DATA(&rt73usb_ops) },
2106 /* Buffalo */
2107 { USB_DEVICE(0x0411, 0x00f4), USB_DEVICE_DATA(&rt73usb_ops) },
2108 /* CNet */
2109 { USB_DEVICE(0x1371, 0x9022), USB_DEVICE_DATA(&rt73usb_ops) },
2110 { USB_DEVICE(0x1371, 0x9032), USB_DEVICE_DATA(&rt73usb_ops) },
2111 /* Conceptronic */
2112 { USB_DEVICE(0x14b2, 0x3c22), USB_DEVICE_DATA(&rt73usb_ops) },
2113 /* Corega */
2114 { USB_DEVICE(0x07aa, 0x002e), USB_DEVICE_DATA(&rt73usb_ops) },
2115 /* D-Link */
2116 { USB_DEVICE(0x07d1, 0x3c03), USB_DEVICE_DATA(&rt73usb_ops) },
2117 { USB_DEVICE(0x07d1, 0x3c04), USB_DEVICE_DATA(&rt73usb_ops) },
2118 { USB_DEVICE(0x07d1, 0x3c07), USB_DEVICE_DATA(&rt73usb_ops) },
2119 /* Gemtek */
2120 { USB_DEVICE(0x15a9, 0x0004), USB_DEVICE_DATA(&rt73usb_ops) },
2121 /* Gigabyte */
2122 { USB_DEVICE(0x1044, 0x8008), USB_DEVICE_DATA(&rt73usb_ops) },
2123 { USB_DEVICE(0x1044, 0x800a), USB_DEVICE_DATA(&rt73usb_ops) },
2124 /* Huawei-3Com */
2125 { USB_DEVICE(0x1472, 0x0009), USB_DEVICE_DATA(&rt73usb_ops) },
2126 /* Hercules */
2127 { USB_DEVICE(0x06f8, 0xe010), USB_DEVICE_DATA(&rt73usb_ops) },
2128 { USB_DEVICE(0x06f8, 0xe020), USB_DEVICE_DATA(&rt73usb_ops) },
2129 /* Linksys */
2130 { USB_DEVICE(0x13b1, 0x0020), USB_DEVICE_DATA(&rt73usb_ops) },
2131 { USB_DEVICE(0x13b1, 0x0023), USB_DEVICE_DATA(&rt73usb_ops) },
2132 /* MSI */
2133 { USB_DEVICE(0x0db0, 0x6877), USB_DEVICE_DATA(&rt73usb_ops) },
2134 { USB_DEVICE(0x0db0, 0x6874), USB_DEVICE_DATA(&rt73usb_ops) },
2135 { USB_DEVICE(0x0db0, 0xa861), USB_DEVICE_DATA(&rt73usb_ops) },
2136 { USB_DEVICE(0x0db0, 0xa874), USB_DEVICE_DATA(&rt73usb_ops) },
2137 /* Ralink */
2138 { USB_DEVICE(0x148f, 0x2573), USB_DEVICE_DATA(&rt73usb_ops) },
2139 { USB_DEVICE(0x148f, 0x2671), USB_DEVICE_DATA(&rt73usb_ops) },
2140 /* Qcom */
2141 { USB_DEVICE(0x18e8, 0x6196), USB_DEVICE_DATA(&rt73usb_ops) },
2142 { USB_DEVICE(0x18e8, 0x6229), USB_DEVICE_DATA(&rt73usb_ops) },
2143 { USB_DEVICE(0x18e8, 0x6238), USB_DEVICE_DATA(&rt73usb_ops) },
2144 /* Senao */
2145 { USB_DEVICE(0x1740, 0x7100), USB_DEVICE_DATA(&rt73usb_ops) },
2146 /* Sitecom */
2147 { USB_DEVICE(0x0df6, 0x9712), USB_DEVICE_DATA(&rt73usb_ops) },
2148 { USB_DEVICE(0x0df6, 0x90ac), USB_DEVICE_DATA(&rt73usb_ops) },
2149 /* Surecom */
2150 { USB_DEVICE(0x0769, 0x31f3), USB_DEVICE_DATA(&rt73usb_ops) },
2151 /* Planex */
2152 { USB_DEVICE(0x2019, 0xab01), USB_DEVICE_DATA(&rt73usb_ops) },
2153 { USB_DEVICE(0x2019, 0xab50), USB_DEVICE_DATA(&rt73usb_ops) },
2154 { 0, }
2155 };
2156
2157 MODULE_AUTHOR(DRV_PROJECT);
2158 MODULE_VERSION(DRV_VERSION);
2159 MODULE_DESCRIPTION("Ralink RT73 USB Wireless LAN driver.");
2160 MODULE_SUPPORTED_DEVICE("Ralink RT2571W & RT2671 USB chipset based cards");
2161 MODULE_DEVICE_TABLE(usb, rt73usb_device_table);
2162 MODULE_FIRMWARE(FIRMWARE_RT2571);
2163 MODULE_LICENSE("GPL");
2164
2165 static struct usb_driver rt73usb_driver = {
2166 .name = KBUILD_MODNAME,
2167 .id_table = rt73usb_device_table,
2168 .probe = rt2x00usb_probe,
2169 .disconnect = rt2x00usb_disconnect,
2170 .suspend = rt2x00usb_suspend,
2171 .resume = rt2x00usb_resume,
2172 };
2173
2174 static int __init rt73usb_init(void)
2175 {
2176 return usb_register(&rt73usb_driver);
2177 }
2178
2179 static void __exit rt73usb_exit(void)
2180 {
2181 usb_deregister(&rt73usb_driver);
2182 }
2183
2184 module_init(rt73usb_init);
2185 module_exit(rt73usb_exit);
Linux kernel - Deliverables
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