2 Copyright (C) 2004 - 2007 rt2x00 SourceForge Project
3 <http://rt2x00.serialmonkey.com>
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.
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.
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.
23 Abstract: rt2500usb device specific routines.
24 Supported chipsets: RT2570.
27 #include <linux/delay.h>
28 #include <linux/etherdevice.h>
29 #include <linux/init.h>
30 #include <linux/kernel.h>
31 #include <linux/module.h>
32 #include <linux/usb.h>
35 #include "rt2x00usb.h"
36 #include "rt2500usb.h"
40 * All access to the CSR registers will go through the methods
41 * rt2500usb_register_read and rt2500usb_register_write.
42 * BBP and RF register require indirect register access,
43 * and use the CSR registers BBPCSR and RFCSR to achieve this.
44 * These indirect registers work with busy bits,
45 * and we will try maximal REGISTER_BUSY_COUNT times to access
46 * the register while taking a REGISTER_BUSY_DELAY us delay
47 * between each attampt. When the busy bit is still set at that time,
48 * the access attempt is considered to have failed,
49 * and we will print an error.
50 * If the usb_cache_mutex is already held then the _lock variants must
53 static inline void rt2500usb_register_read(struct rt2x00_dev *rt2x00dev,
54 const unsigned int offset,
58 rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_READ,
59 USB_VENDOR_REQUEST_IN, offset,
60 ®, sizeof(u16), REGISTER_TIMEOUT);
61 *value = le16_to_cpu(reg);
64 static inline void rt2500usb_register_read_lock(struct rt2x00_dev *rt2x00dev,
65 const unsigned int offset,
69 rt2x00usb_vendor_req_buff_lock(rt2x00dev, USB_MULTI_READ,
70 USB_VENDOR_REQUEST_IN, offset,
71 ®, sizeof(u16), REGISTER_TIMEOUT);
72 *value = le16_to_cpu(reg);
75 static inline void rt2500usb_register_multiread(struct rt2x00_dev *rt2x00dev,
76 const unsigned int offset,
77 void *value, const u16 length)
79 int timeout = REGISTER_TIMEOUT * (length / sizeof(u16));
80 rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_READ,
81 USB_VENDOR_REQUEST_IN, offset,
82 value, length, timeout);
85 static inline void rt2500usb_register_write(struct rt2x00_dev *rt2x00dev,
86 const unsigned int offset,
89 __le16 reg = cpu_to_le16(value);
90 rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_WRITE,
91 USB_VENDOR_REQUEST_OUT, offset,
92 ®, sizeof(u16), REGISTER_TIMEOUT);
95 static inline void rt2500usb_register_write_lock(struct rt2x00_dev *rt2x00dev,
96 const unsigned int offset,
99 __le16 reg = cpu_to_le16(value);
100 rt2x00usb_vendor_req_buff_lock(rt2x00dev, USB_MULTI_WRITE,
101 USB_VENDOR_REQUEST_OUT, offset,
102 ®, sizeof(u16), REGISTER_TIMEOUT);
105 static inline void rt2500usb_register_multiwrite(struct rt2x00_dev *rt2x00dev,
106 const unsigned int offset,
107 void *value, const u16 length)
109 int timeout = REGISTER_TIMEOUT * (length / sizeof(u16));
110 rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_WRITE,
111 USB_VENDOR_REQUEST_OUT, offset,
112 value, length, timeout);
115 static u16 rt2500usb_bbp_check(struct rt2x00_dev *rt2x00dev)
120 for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
121 rt2500usb_register_read_lock(rt2x00dev, PHY_CSR8, ®);
122 if (!rt2x00_get_field16(reg, PHY_CSR8_BUSY))
124 udelay(REGISTER_BUSY_DELAY);
130 static void rt2500usb_bbp_write(struct rt2x00_dev *rt2x00dev,
131 const unsigned int word, const u8 value)
135 mutex_lock(&rt2x00dev->usb_cache_mutex);
138 * Wait until the BBP becomes ready.
140 reg = rt2500usb_bbp_check(rt2x00dev);
141 if (rt2x00_get_field16(reg, PHY_CSR8_BUSY)) {
142 ERROR(rt2x00dev, "PHY_CSR8 register busy. Write failed.\n");
143 mutex_unlock(&rt2x00dev->usb_cache_mutex);
148 * Write the data into the BBP.
151 rt2x00_set_field16(®, PHY_CSR7_DATA, value);
152 rt2x00_set_field16(®, PHY_CSR7_REG_ID, word);
153 rt2x00_set_field16(®, PHY_CSR7_READ_CONTROL, 0);
155 rt2500usb_register_write_lock(rt2x00dev, PHY_CSR7, reg);
157 mutex_unlock(&rt2x00dev->usb_cache_mutex);
160 static void rt2500usb_bbp_read(struct rt2x00_dev *rt2x00dev,
161 const unsigned int word, u8 *value)
165 mutex_lock(&rt2x00dev->usb_cache_mutex);
168 * Wait until the BBP becomes ready.
170 reg = rt2500usb_bbp_check(rt2x00dev);
171 if (rt2x00_get_field16(reg, PHY_CSR8_BUSY)) {
172 ERROR(rt2x00dev, "PHY_CSR8 register busy. Read failed.\n");
177 * Write the request into the BBP.
180 rt2x00_set_field16(®, PHY_CSR7_REG_ID, word);
181 rt2x00_set_field16(®, PHY_CSR7_READ_CONTROL, 1);
183 rt2500usb_register_write_lock(rt2x00dev, PHY_CSR7, reg);
186 * Wait until the BBP becomes ready.
188 reg = rt2500usb_bbp_check(rt2x00dev);
189 if (rt2x00_get_field16(reg, PHY_CSR8_BUSY)) {
190 ERROR(rt2x00dev, "PHY_CSR8 register busy. Read failed.\n");
192 mutex_unlock(&rt2x00dev->usb_cache_mutex);
196 rt2500usb_register_read_lock(rt2x00dev, PHY_CSR7, ®);
197 *value = rt2x00_get_field16(reg, PHY_CSR7_DATA);
199 mutex_unlock(&rt2x00dev->usb_cache_mutex);
202 static void rt2500usb_rf_write(struct rt2x00_dev *rt2x00dev,
203 const unsigned int word, const u32 value)
211 mutex_lock(&rt2x00dev->usb_cache_mutex);
213 for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
214 rt2500usb_register_read_lock(rt2x00dev, PHY_CSR10, ®);
215 if (!rt2x00_get_field16(reg, PHY_CSR10_RF_BUSY))
217 udelay(REGISTER_BUSY_DELAY);
220 mutex_unlock(&rt2x00dev->usb_cache_mutex);
221 ERROR(rt2x00dev, "PHY_CSR10 register busy. Write failed.\n");
226 rt2x00_set_field16(®, PHY_CSR9_RF_VALUE, value);
227 rt2500usb_register_write_lock(rt2x00dev, PHY_CSR9, reg);
230 rt2x00_set_field16(®, PHY_CSR10_RF_VALUE, value >> 16);
231 rt2x00_set_field16(®, PHY_CSR10_RF_NUMBER_OF_BITS, 20);
232 rt2x00_set_field16(®, PHY_CSR10_RF_IF_SELECT, 0);
233 rt2x00_set_field16(®, PHY_CSR10_RF_BUSY, 1);
235 rt2500usb_register_write_lock(rt2x00dev, PHY_CSR10, reg);
236 rt2x00_rf_write(rt2x00dev, word, value);
238 mutex_unlock(&rt2x00dev->usb_cache_mutex);
241 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
242 #define CSR_OFFSET(__word) ( CSR_REG_BASE + ((__word) * sizeof(u16)) )
244 static void rt2500usb_read_csr(struct rt2x00_dev *rt2x00dev,
245 const unsigned int word, u32 *data)
247 rt2500usb_register_read(rt2x00dev, CSR_OFFSET(word), (u16 *) data);
250 static void rt2500usb_write_csr(struct rt2x00_dev *rt2x00dev,
251 const unsigned int word, u32 data)
253 rt2500usb_register_write(rt2x00dev, CSR_OFFSET(word), data);
256 static const struct rt2x00debug rt2500usb_rt2x00debug = {
257 .owner = THIS_MODULE,
259 .read = rt2500usb_read_csr,
260 .write = rt2500usb_write_csr,
261 .word_size = sizeof(u16),
262 .word_count = CSR_REG_SIZE / sizeof(u16),
265 .read = rt2x00_eeprom_read,
266 .write = rt2x00_eeprom_write,
267 .word_size = sizeof(u16),
268 .word_count = EEPROM_SIZE / sizeof(u16),
271 .read = rt2500usb_bbp_read,
272 .write = rt2500usb_bbp_write,
273 .word_size = sizeof(u8),
274 .word_count = BBP_SIZE / sizeof(u8),
277 .read = rt2x00_rf_read,
278 .write = rt2500usb_rf_write,
279 .word_size = sizeof(u32),
280 .word_count = RF_SIZE / sizeof(u32),
283 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
286 * Configuration handlers.
288 static void rt2500usb_config_mac_addr(struct rt2x00_dev *rt2x00dev,
291 rt2500usb_register_multiwrite(rt2x00dev, MAC_CSR2, mac,
292 (3 * sizeof(__le16)));
295 static void rt2500usb_config_bssid(struct rt2x00_dev *rt2x00dev,
298 rt2500usb_register_multiwrite(rt2x00dev, MAC_CSR5, bssid,
299 (3 * sizeof(__le16)));
302 static void rt2500usb_config_type(struct rt2x00_dev *rt2x00dev, const int type,
307 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, 0);
310 * Enable beacon config
312 rt2500usb_register_read(rt2x00dev, TXRX_CSR20, ®);
313 rt2x00_set_field16(®, TXRX_CSR20_OFFSET,
314 (PREAMBLE + get_duration(IEEE80211_HEADER, 20)) >> 6);
315 if (type == IEEE80211_IF_TYPE_STA)
316 rt2x00_set_field16(®, TXRX_CSR20_BCN_EXPECT_WINDOW, 0);
318 rt2x00_set_field16(®, TXRX_CSR20_BCN_EXPECT_WINDOW, 2);
319 rt2500usb_register_write(rt2x00dev, TXRX_CSR20, reg);
322 * Enable synchronisation.
324 rt2500usb_register_read(rt2x00dev, TXRX_CSR18, ®);
325 rt2x00_set_field16(®, TXRX_CSR18_OFFSET, 0);
326 rt2500usb_register_write(rt2x00dev, TXRX_CSR18, reg);
328 rt2500usb_register_read(rt2x00dev, TXRX_CSR19, ®);
329 rt2x00_set_field16(®, TXRX_CSR19_TSF_COUNT, 1);
330 rt2x00_set_field16(®, TXRX_CSR19_TBCN,
331 (tsf_sync == TSF_SYNC_BEACON));
332 rt2x00_set_field16(®, TXRX_CSR19_BEACON_GEN, 0);
333 rt2x00_set_field16(®, TXRX_CSR19_TSF_SYNC, tsf_sync);
334 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
337 static void rt2500usb_config_preamble(struct rt2x00_dev *rt2x00dev,
338 const int short_preamble,
339 const int ack_timeout,
340 const int ack_consume_time)
345 * When in atomic context, reschedule and let rt2x00lib
346 * call this function again.
349 queue_work(rt2x00dev->hw->workqueue, &rt2x00dev->config_work);
353 rt2500usb_register_read(rt2x00dev, TXRX_CSR1, ®);
354 rt2x00_set_field16(®, TXRX_CSR1_ACK_TIMEOUT, ack_timeout);
355 rt2500usb_register_write(rt2x00dev, TXRX_CSR1, reg);
357 rt2500usb_register_read(rt2x00dev, TXRX_CSR10, ®);
358 rt2x00_set_field16(®, TXRX_CSR10_AUTORESPOND_PREAMBLE,
360 rt2500usb_register_write(rt2x00dev, TXRX_CSR10, reg);
363 static void rt2500usb_config_phymode(struct rt2x00_dev *rt2x00dev,
365 const int basic_rate_mask)
367 rt2500usb_register_write(rt2x00dev, TXRX_CSR11, basic_rate_mask);
369 if (phymode == HWMODE_B) {
370 rt2500usb_register_write(rt2x00dev, MAC_CSR11, 0x000b);
371 rt2500usb_register_write(rt2x00dev, MAC_CSR12, 0x0040);
373 rt2500usb_register_write(rt2x00dev, MAC_CSR11, 0x0005);
374 rt2500usb_register_write(rt2x00dev, MAC_CSR12, 0x016c);
378 static void rt2500usb_config_channel(struct rt2x00_dev *rt2x00dev,
379 struct rf_channel *rf, const int txpower)
384 rt2x00_set_field32(&rf->rf3, RF3_TXPOWER, TXPOWER_TO_DEV(txpower));
387 * For RT2525E we should first set the channel to half band higher.
389 if (rt2x00_rf(&rt2x00dev->chip, RF2525E)) {
390 static const u32 vals[] = {
391 0x000008aa, 0x000008ae, 0x000008ae, 0x000008b2,
392 0x000008b2, 0x000008b6, 0x000008b6, 0x000008ba,
393 0x000008ba, 0x000008be, 0x000008b7, 0x00000902,
394 0x00000902, 0x00000906
397 rt2500usb_rf_write(rt2x00dev, 2, vals[rf->channel - 1]);
399 rt2500usb_rf_write(rt2x00dev, 4, rf->rf4);
402 rt2500usb_rf_write(rt2x00dev, 1, rf->rf1);
403 rt2500usb_rf_write(rt2x00dev, 2, rf->rf2);
404 rt2500usb_rf_write(rt2x00dev, 3, rf->rf3);
406 rt2500usb_rf_write(rt2x00dev, 4, rf->rf4);
409 static void rt2500usb_config_txpower(struct rt2x00_dev *rt2x00dev,
414 rt2x00_rf_read(rt2x00dev, 3, &rf3);
415 rt2x00_set_field32(&rf3, RF3_TXPOWER, TXPOWER_TO_DEV(txpower));
416 rt2500usb_rf_write(rt2x00dev, 3, rf3);
419 static void rt2500usb_config_antenna(struct rt2x00_dev *rt2x00dev,
420 struct antenna_setup *ant)
427 rt2500usb_bbp_read(rt2x00dev, 2, &r2);
428 rt2500usb_bbp_read(rt2x00dev, 14, &r14);
429 rt2500usb_register_read(rt2x00dev, PHY_CSR5, &csr5);
430 rt2500usb_register_read(rt2x00dev, PHY_CSR6, &csr6);
433 * Configure the TX antenna.
436 case ANTENNA_HW_DIVERSITY:
437 rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 1);
438 rt2x00_set_field16(&csr5, PHY_CSR5_CCK, 1);
439 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM, 1);
442 rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 0);
443 rt2x00_set_field16(&csr5, PHY_CSR5_CCK, 0);
444 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM, 0);
446 case ANTENNA_SW_DIVERSITY:
448 * NOTE: We should never come here because rt2x00lib is
449 * supposed to catch this and send us the correct antenna
450 * explicitely. However we are nog going to bug about this.
451 * Instead, just default to antenna B.
454 rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 2);
455 rt2x00_set_field16(&csr5, PHY_CSR5_CCK, 2);
456 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM, 2);
461 * Configure the RX antenna.
464 case ANTENNA_HW_DIVERSITY:
465 rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 1);
468 rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 0);
470 case ANTENNA_SW_DIVERSITY:
472 * NOTE: We should never come here because rt2x00lib is
473 * supposed to catch this and send us the correct antenna
474 * explicitely. However we are nog going to bug about this.
475 * Instead, just default to antenna B.
478 rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 2);
483 * RT2525E and RT5222 need to flip TX I/Q
485 if (rt2x00_rf(&rt2x00dev->chip, RF2525E) ||
486 rt2x00_rf(&rt2x00dev->chip, RF5222)) {
487 rt2x00_set_field8(&r2, BBP_R2_TX_IQ_FLIP, 1);
488 rt2x00_set_field16(&csr5, PHY_CSR5_CCK_FLIP, 1);
489 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM_FLIP, 1);
492 * RT2525E does not need RX I/Q Flip.
494 if (rt2x00_rf(&rt2x00dev->chip, RF2525E))
495 rt2x00_set_field8(&r14, BBP_R14_RX_IQ_FLIP, 0);
497 rt2x00_set_field16(&csr5, PHY_CSR5_CCK_FLIP, 0);
498 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM_FLIP, 0);
501 rt2500usb_bbp_write(rt2x00dev, 2, r2);
502 rt2500usb_bbp_write(rt2x00dev, 14, r14);
503 rt2500usb_register_write(rt2x00dev, PHY_CSR5, csr5);
504 rt2500usb_register_write(rt2x00dev, PHY_CSR6, csr6);
507 static void rt2500usb_config_duration(struct rt2x00_dev *rt2x00dev,
508 struct rt2x00lib_conf *libconf)
512 rt2500usb_register_write(rt2x00dev, MAC_CSR10, libconf->slot_time);
514 rt2500usb_register_read(rt2x00dev, TXRX_CSR18, ®);
515 rt2x00_set_field16(®, TXRX_CSR18_INTERVAL,
516 libconf->conf->beacon_int * 4);
517 rt2500usb_register_write(rt2x00dev, TXRX_CSR18, reg);
520 static void rt2500usb_config(struct rt2x00_dev *rt2x00dev,
521 const unsigned int flags,
522 struct rt2x00lib_conf *libconf)
524 if (flags & CONFIG_UPDATE_PHYMODE)
525 rt2500usb_config_phymode(rt2x00dev, libconf->phymode,
526 libconf->basic_rates);
527 if (flags & CONFIG_UPDATE_CHANNEL)
528 rt2500usb_config_channel(rt2x00dev, &libconf->rf,
529 libconf->conf->power_level);
530 if ((flags & CONFIG_UPDATE_TXPOWER) && !(flags & CONFIG_UPDATE_CHANNEL))
531 rt2500usb_config_txpower(rt2x00dev,
532 libconf->conf->power_level);
533 if (flags & CONFIG_UPDATE_ANTENNA)
534 rt2500usb_config_antenna(rt2x00dev, &libconf->ant);
535 if (flags & (CONFIG_UPDATE_SLOT_TIME | CONFIG_UPDATE_BEACON_INT))
536 rt2500usb_config_duration(rt2x00dev, libconf);
542 static void rt2500usb_enable_led(struct rt2x00_dev *rt2x00dev)
546 rt2500usb_register_read(rt2x00dev, MAC_CSR21, ®);
547 rt2x00_set_field16(®, MAC_CSR21_ON_PERIOD, 70);
548 rt2x00_set_field16(®, MAC_CSR21_OFF_PERIOD, 30);
549 rt2500usb_register_write(rt2x00dev, MAC_CSR21, reg);
551 rt2500usb_register_read(rt2x00dev, MAC_CSR20, ®);
552 rt2x00_set_field16(®, MAC_CSR20_LINK,
553 (rt2x00dev->led_mode != LED_MODE_ASUS));
554 rt2x00_set_field16(®, MAC_CSR20_ACTIVITY,
555 (rt2x00dev->led_mode != LED_MODE_TXRX_ACTIVITY));
556 rt2500usb_register_write(rt2x00dev, MAC_CSR20, reg);
559 static void rt2500usb_disable_led(struct rt2x00_dev *rt2x00dev)
563 rt2500usb_register_read(rt2x00dev, MAC_CSR20, ®);
564 rt2x00_set_field16(®, MAC_CSR20_LINK, 0);
565 rt2x00_set_field16(®, MAC_CSR20_ACTIVITY, 0);
566 rt2500usb_register_write(rt2x00dev, MAC_CSR20, reg);
572 static void rt2500usb_link_stats(struct rt2x00_dev *rt2x00dev,
573 struct link_qual *qual)
578 * Update FCS error count from register.
580 rt2500usb_register_read(rt2x00dev, STA_CSR0, ®);
581 qual->rx_failed = rt2x00_get_field16(reg, STA_CSR0_FCS_ERROR);
584 * Update False CCA count from register.
586 rt2500usb_register_read(rt2x00dev, STA_CSR3, ®);
587 qual->false_cca = rt2x00_get_field16(reg, STA_CSR3_FALSE_CCA_ERROR);
590 static void rt2500usb_reset_tuner(struct rt2x00_dev *rt2x00dev)
595 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R24, &eeprom);
596 value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_R24_LOW);
597 rt2500usb_bbp_write(rt2x00dev, 24, value);
599 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R25, &eeprom);
600 value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_R25_LOW);
601 rt2500usb_bbp_write(rt2x00dev, 25, value);
603 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R61, &eeprom);
604 value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_R61_LOW);
605 rt2500usb_bbp_write(rt2x00dev, 61, value);
607 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_VGC, &eeprom);
608 value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_VGCUPPER);
609 rt2500usb_bbp_write(rt2x00dev, 17, value);
611 rt2x00dev->link.vgc_level = value;
614 static void rt2500usb_link_tuner(struct rt2x00_dev *rt2x00dev)
616 int rssi = rt2x00_get_link_rssi(&rt2x00dev->link);
629 * Determine the BBP tuning threshold and correctly
630 * set BBP 24, 25 and 61.
632 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE, &bbp_thresh);
633 bbp_thresh = rt2x00_get_field16(bbp_thresh, EEPROM_BBPTUNE_THRESHOLD);
635 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R24, &r24);
636 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R25, &r25);
637 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R61, &r61);
639 if ((rssi + bbp_thresh) > 0) {
640 r24 = rt2x00_get_field16(r24, EEPROM_BBPTUNE_R24_HIGH);
641 r25 = rt2x00_get_field16(r25, EEPROM_BBPTUNE_R25_HIGH);
642 r61 = rt2x00_get_field16(r61, EEPROM_BBPTUNE_R61_HIGH);
644 r24 = rt2x00_get_field16(r24, EEPROM_BBPTUNE_R24_LOW);
645 r25 = rt2x00_get_field16(r25, EEPROM_BBPTUNE_R25_LOW);
646 r61 = rt2x00_get_field16(r61, EEPROM_BBPTUNE_R61_LOW);
649 rt2500usb_bbp_write(rt2x00dev, 24, r24);
650 rt2500usb_bbp_write(rt2x00dev, 25, r25);
651 rt2500usb_bbp_write(rt2x00dev, 61, r61);
654 * Read current r17 value, as well as the sensitivity values
655 * for the r17 register.
657 rt2500usb_bbp_read(rt2x00dev, 17, &r17);
658 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R17, &r17_sens);
661 * A too low RSSI will cause too much false CCA which will
662 * then corrupt the R17 tuning. To remidy this the tuning should
663 * be stopped (While making sure the R17 value will not exceed limits)
667 rt2500usb_bbp_write(rt2x00dev, 17, 0x60);
672 * Special big-R17 for short distance
675 sens = rt2x00_get_field16(r17_sens, EEPROM_BBPTUNE_R17_LOW);
677 rt2500usb_bbp_write(rt2x00dev, 17, sens);
682 * Special mid-R17 for middle distance
685 sens = rt2x00_get_field16(r17_sens, EEPROM_BBPTUNE_R17_HIGH);
687 rt2500usb_bbp_write(rt2x00dev, 17, sens);
692 * Leave short or middle distance condition, restore r17
693 * to the dynamic tuning range.
695 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_VGC, &vgc_bound);
696 vgc_bound = rt2x00_get_field16(vgc_bound, EEPROM_BBPTUNE_VGCUPPER);
700 up_bound = vgc_bound;
702 up_bound = vgc_bound - (-77 - rssi);
704 if (up_bound < low_bound)
705 up_bound = low_bound;
707 if (r17 > up_bound) {
708 rt2500usb_bbp_write(rt2x00dev, 17, up_bound);
709 rt2x00dev->link.vgc_level = up_bound;
710 } else if (rt2x00dev->link.qual.false_cca > 512 && r17 < up_bound) {
711 rt2500usb_bbp_write(rt2x00dev, 17, ++r17);
712 rt2x00dev->link.vgc_level = r17;
713 } else if (rt2x00dev->link.qual.false_cca < 100 && r17 > low_bound) {
714 rt2500usb_bbp_write(rt2x00dev, 17, --r17);
715 rt2x00dev->link.vgc_level = r17;
720 * Initialization functions.
722 static int rt2500usb_init_registers(struct rt2x00_dev *rt2x00dev)
726 rt2x00usb_vendor_request_sw(rt2x00dev, USB_DEVICE_MODE, 0x0001,
727 USB_MODE_TEST, REGISTER_TIMEOUT);
728 rt2x00usb_vendor_request_sw(rt2x00dev, USB_SINGLE_WRITE, 0x0308,
729 0x00f0, REGISTER_TIMEOUT);
731 rt2500usb_register_read(rt2x00dev, TXRX_CSR2, ®);
732 rt2x00_set_field16(®, TXRX_CSR2_DISABLE_RX, 1);
733 rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
735 rt2500usb_register_write(rt2x00dev, MAC_CSR13, 0x1111);
736 rt2500usb_register_write(rt2x00dev, MAC_CSR14, 0x1e11);
738 rt2500usb_register_read(rt2x00dev, MAC_CSR1, ®);
739 rt2x00_set_field16(®, MAC_CSR1_SOFT_RESET, 1);
740 rt2x00_set_field16(®, MAC_CSR1_BBP_RESET, 1);
741 rt2x00_set_field16(®, MAC_CSR1_HOST_READY, 0);
742 rt2500usb_register_write(rt2x00dev, MAC_CSR1, reg);
744 rt2500usb_register_read(rt2x00dev, MAC_CSR1, ®);
745 rt2x00_set_field16(®, MAC_CSR1_SOFT_RESET, 0);
746 rt2x00_set_field16(®, MAC_CSR1_BBP_RESET, 0);
747 rt2x00_set_field16(®, MAC_CSR1_HOST_READY, 0);
748 rt2500usb_register_write(rt2x00dev, MAC_CSR1, reg);
750 rt2500usb_register_read(rt2x00dev, TXRX_CSR5, ®);
751 rt2x00_set_field16(®, TXRX_CSR5_BBP_ID0, 13);
752 rt2x00_set_field16(®, TXRX_CSR5_BBP_ID0_VALID, 1);
753 rt2x00_set_field16(®, TXRX_CSR5_BBP_ID1, 12);
754 rt2x00_set_field16(®, TXRX_CSR5_BBP_ID1_VALID, 1);
755 rt2500usb_register_write(rt2x00dev, TXRX_CSR5, reg);
757 rt2500usb_register_read(rt2x00dev, TXRX_CSR6, ®);
758 rt2x00_set_field16(®, TXRX_CSR6_BBP_ID0, 10);
759 rt2x00_set_field16(®, TXRX_CSR6_BBP_ID0_VALID, 1);
760 rt2x00_set_field16(®, TXRX_CSR6_BBP_ID1, 11);
761 rt2x00_set_field16(®, TXRX_CSR6_BBP_ID1_VALID, 1);
762 rt2500usb_register_write(rt2x00dev, TXRX_CSR6, reg);
764 rt2500usb_register_read(rt2x00dev, TXRX_CSR7, ®);
765 rt2x00_set_field16(®, TXRX_CSR7_BBP_ID0, 7);
766 rt2x00_set_field16(®, TXRX_CSR7_BBP_ID0_VALID, 1);
767 rt2x00_set_field16(®, TXRX_CSR7_BBP_ID1, 6);
768 rt2x00_set_field16(®, TXRX_CSR7_BBP_ID1_VALID, 1);
769 rt2500usb_register_write(rt2x00dev, TXRX_CSR7, reg);
771 rt2500usb_register_read(rt2x00dev, TXRX_CSR8, ®);
772 rt2x00_set_field16(®, TXRX_CSR8_BBP_ID0, 5);
773 rt2x00_set_field16(®, TXRX_CSR8_BBP_ID0_VALID, 1);
774 rt2x00_set_field16(®, TXRX_CSR8_BBP_ID1, 0);
775 rt2x00_set_field16(®, TXRX_CSR8_BBP_ID1_VALID, 0);
776 rt2500usb_register_write(rt2x00dev, TXRX_CSR8, reg);
778 rt2500usb_register_write(rt2x00dev, TXRX_CSR21, 0xe78f);
779 rt2500usb_register_write(rt2x00dev, MAC_CSR9, 0xff1d);
781 if (rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_AWAKE))
784 rt2500usb_register_read(rt2x00dev, MAC_CSR1, ®);
785 rt2x00_set_field16(®, MAC_CSR1_SOFT_RESET, 0);
786 rt2x00_set_field16(®, MAC_CSR1_BBP_RESET, 0);
787 rt2x00_set_field16(®, MAC_CSR1_HOST_READY, 1);
788 rt2500usb_register_write(rt2x00dev, MAC_CSR1, reg);
790 if (rt2x00_rev(&rt2x00dev->chip) >= RT2570_VERSION_C) {
791 rt2500usb_register_read(rt2x00dev, PHY_CSR2, ®);
792 rt2x00_set_field16(®, PHY_CSR2_LNA, 0);
795 rt2x00_set_field16(®, PHY_CSR2_LNA, 1);
796 rt2x00_set_field16(®, PHY_CSR2_LNA_MODE, 3);
798 rt2500usb_register_write(rt2x00dev, PHY_CSR2, reg);
800 rt2500usb_register_write(rt2x00dev, MAC_CSR11, 0x0002);
801 rt2500usb_register_write(rt2x00dev, MAC_CSR22, 0x0053);
802 rt2500usb_register_write(rt2x00dev, MAC_CSR15, 0x01ee);
803 rt2500usb_register_write(rt2x00dev, MAC_CSR16, 0x0000);
805 rt2500usb_register_read(rt2x00dev, MAC_CSR8, ®);
806 rt2x00_set_field16(®, MAC_CSR8_MAX_FRAME_UNIT,
807 rt2x00dev->rx->data_size);
808 rt2500usb_register_write(rt2x00dev, MAC_CSR8, reg);
810 rt2500usb_register_read(rt2x00dev, TXRX_CSR0, ®);
811 rt2x00_set_field16(®, TXRX_CSR0_IV_OFFSET, IEEE80211_HEADER);
812 rt2x00_set_field16(®, TXRX_CSR0_KEY_ID, 0xff);
813 rt2500usb_register_write(rt2x00dev, TXRX_CSR0, reg);
815 rt2500usb_register_read(rt2x00dev, MAC_CSR18, ®);
816 rt2x00_set_field16(®, MAC_CSR18_DELAY_AFTER_BEACON, 90);
817 rt2500usb_register_write(rt2x00dev, MAC_CSR18, reg);
819 rt2500usb_register_read(rt2x00dev, PHY_CSR4, ®);
820 rt2x00_set_field16(®, PHY_CSR4_LOW_RF_LE, 1);
821 rt2500usb_register_write(rt2x00dev, PHY_CSR4, reg);
823 rt2500usb_register_read(rt2x00dev, TXRX_CSR1, ®);
824 rt2x00_set_field16(®, TXRX_CSR1_AUTO_SEQUENCE, 1);
825 rt2500usb_register_write(rt2x00dev, TXRX_CSR1, reg);
830 static int rt2500usb_init_bbp(struct rt2x00_dev *rt2x00dev)
837 for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
838 rt2500usb_bbp_read(rt2x00dev, 0, &value);
839 if ((value != 0xff) && (value != 0x00))
840 goto continue_csr_init;
841 NOTICE(rt2x00dev, "Waiting for BBP register.\n");
842 udelay(REGISTER_BUSY_DELAY);
845 ERROR(rt2x00dev, "BBP register access failed, aborting.\n");
849 rt2500usb_bbp_write(rt2x00dev, 3, 0x02);
850 rt2500usb_bbp_write(rt2x00dev, 4, 0x19);
851 rt2500usb_bbp_write(rt2x00dev, 14, 0x1c);
852 rt2500usb_bbp_write(rt2x00dev, 15, 0x30);
853 rt2500usb_bbp_write(rt2x00dev, 16, 0xac);
854 rt2500usb_bbp_write(rt2x00dev, 18, 0x18);
855 rt2500usb_bbp_write(rt2x00dev, 19, 0xff);
856 rt2500usb_bbp_write(rt2x00dev, 20, 0x1e);
857 rt2500usb_bbp_write(rt2x00dev, 21, 0x08);
858 rt2500usb_bbp_write(rt2x00dev, 22, 0x08);
859 rt2500usb_bbp_write(rt2x00dev, 23, 0x08);
860 rt2500usb_bbp_write(rt2x00dev, 24, 0x80);
861 rt2500usb_bbp_write(rt2x00dev, 25, 0x50);
862 rt2500usb_bbp_write(rt2x00dev, 26, 0x08);
863 rt2500usb_bbp_write(rt2x00dev, 27, 0x23);
864 rt2500usb_bbp_write(rt2x00dev, 30, 0x10);
865 rt2500usb_bbp_write(rt2x00dev, 31, 0x2b);
866 rt2500usb_bbp_write(rt2x00dev, 32, 0xb9);
867 rt2500usb_bbp_write(rt2x00dev, 34, 0x12);
868 rt2500usb_bbp_write(rt2x00dev, 35, 0x50);
869 rt2500usb_bbp_write(rt2x00dev, 39, 0xc4);
870 rt2500usb_bbp_write(rt2x00dev, 40, 0x02);
871 rt2500usb_bbp_write(rt2x00dev, 41, 0x60);
872 rt2500usb_bbp_write(rt2x00dev, 53, 0x10);
873 rt2500usb_bbp_write(rt2x00dev, 54, 0x18);
874 rt2500usb_bbp_write(rt2x00dev, 56, 0x08);
875 rt2500usb_bbp_write(rt2x00dev, 57, 0x10);
876 rt2500usb_bbp_write(rt2x00dev, 58, 0x08);
877 rt2500usb_bbp_write(rt2x00dev, 61, 0x60);
878 rt2500usb_bbp_write(rt2x00dev, 62, 0x10);
879 rt2500usb_bbp_write(rt2x00dev, 75, 0xff);
881 DEBUG(rt2x00dev, "Start initialization from EEPROM...\n");
882 for (i = 0; i < EEPROM_BBP_SIZE; i++) {
883 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBP_START + i, &eeprom);
885 if (eeprom != 0xffff && eeprom != 0x0000) {
886 reg_id = rt2x00_get_field16(eeprom, EEPROM_BBP_REG_ID);
887 value = rt2x00_get_field16(eeprom, EEPROM_BBP_VALUE);
888 DEBUG(rt2x00dev, "BBP: 0x%02x, value: 0x%02x.\n",
890 rt2500usb_bbp_write(rt2x00dev, reg_id, value);
893 DEBUG(rt2x00dev, "...End initialization from EEPROM.\n");
899 * Device state switch handlers.
901 static void rt2500usb_toggle_rx(struct rt2x00_dev *rt2x00dev,
902 enum dev_state state)
906 rt2500usb_register_read(rt2x00dev, TXRX_CSR2, ®);
907 rt2x00_set_field16(®, TXRX_CSR2_DISABLE_RX,
908 state == STATE_RADIO_RX_OFF);
909 rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
912 static int rt2500usb_enable_radio(struct rt2x00_dev *rt2x00dev)
915 * Initialize all registers.
917 if (rt2500usb_init_registers(rt2x00dev) ||
918 rt2500usb_init_bbp(rt2x00dev)) {
919 ERROR(rt2x00dev, "Register initialization failed.\n");
923 rt2x00usb_enable_radio(rt2x00dev);
928 rt2500usb_enable_led(rt2x00dev);
933 static void rt2500usb_disable_radio(struct rt2x00_dev *rt2x00dev)
938 rt2500usb_disable_led(rt2x00dev);
940 rt2500usb_register_write(rt2x00dev, MAC_CSR13, 0x2121);
941 rt2500usb_register_write(rt2x00dev, MAC_CSR14, 0x2121);
944 * Disable synchronisation.
946 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, 0);
948 rt2x00usb_disable_radio(rt2x00dev);
951 static int rt2500usb_set_state(struct rt2x00_dev *rt2x00dev,
952 enum dev_state state)
961 put_to_sleep = (state != STATE_AWAKE);
964 rt2x00_set_field16(®, MAC_CSR17_BBP_DESIRE_STATE, state);
965 rt2x00_set_field16(®, MAC_CSR17_RF_DESIRE_STATE, state);
966 rt2x00_set_field16(®, MAC_CSR17_PUT_TO_SLEEP, put_to_sleep);
967 rt2500usb_register_write(rt2x00dev, MAC_CSR17, reg);
968 rt2x00_set_field16(®, MAC_CSR17_SET_STATE, 1);
969 rt2500usb_register_write(rt2x00dev, MAC_CSR17, reg);
972 * Device is not guaranteed to be in the requested state yet.
973 * We must wait until the register indicates that the
974 * device has entered the correct state.
976 for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
977 rt2500usb_register_read(rt2x00dev, MAC_CSR17, ®2);
978 bbp_state = rt2x00_get_field16(reg2, MAC_CSR17_BBP_CURR_STATE);
979 rf_state = rt2x00_get_field16(reg2, MAC_CSR17_RF_CURR_STATE);
980 if (bbp_state == state && rf_state == state)
982 rt2500usb_register_write(rt2x00dev, MAC_CSR17, reg);
986 NOTICE(rt2x00dev, "Device failed to enter state %d, "
987 "current device state: bbp %d and rf %d.\n",
988 state, bbp_state, rf_state);
993 static int rt2500usb_set_device_state(struct rt2x00_dev *rt2x00dev,
994 enum dev_state state)
1000 retval = rt2500usb_enable_radio(rt2x00dev);
1002 case STATE_RADIO_OFF:
1003 rt2500usb_disable_radio(rt2x00dev);
1005 case STATE_RADIO_RX_ON:
1006 case STATE_RADIO_RX_OFF:
1007 rt2500usb_toggle_rx(rt2x00dev, state);
1009 case STATE_DEEP_SLEEP:
1013 retval = rt2500usb_set_state(rt2x00dev, state);
1024 * TX descriptor initialization
1026 static void rt2500usb_write_tx_desc(struct rt2x00_dev *rt2x00dev,
1028 struct txdata_entry_desc *desc,
1029 struct ieee80211_hdr *ieee80211hdr,
1030 unsigned int length,
1031 struct ieee80211_tx_control *control)
1036 * Start writing the descriptor words.
1038 rt2x00_desc_read(txd, 1, &word);
1039 rt2x00_set_field32(&word, TXD_W1_IV_OFFSET, IEEE80211_HEADER);
1040 rt2x00_set_field32(&word, TXD_W1_AIFS, desc->aifs);
1041 rt2x00_set_field32(&word, TXD_W1_CWMIN, desc->cw_min);
1042 rt2x00_set_field32(&word, TXD_W1_CWMAX, desc->cw_max);
1043 rt2x00_desc_write(txd, 1, word);
1045 rt2x00_desc_read(txd, 2, &word);
1046 rt2x00_set_field32(&word, TXD_W2_PLCP_SIGNAL, desc->signal);
1047 rt2x00_set_field32(&word, TXD_W2_PLCP_SERVICE, desc->service);
1048 rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_LOW, desc->length_low);
1049 rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_HIGH, desc->length_high);
1050 rt2x00_desc_write(txd, 2, word);
1052 rt2x00_desc_read(txd, 0, &word);
1053 rt2x00_set_field32(&word, TXD_W0_RETRY_LIMIT, control->retry_limit);
1054 rt2x00_set_field32(&word, TXD_W0_MORE_FRAG,
1055 test_bit(ENTRY_TXD_MORE_FRAG, &desc->flags));
1056 rt2x00_set_field32(&word, TXD_W0_ACK,
1057 test_bit(ENTRY_TXD_ACK, &desc->flags));
1058 rt2x00_set_field32(&word, TXD_W0_TIMESTAMP,
1059 test_bit(ENTRY_TXD_REQ_TIMESTAMP, &desc->flags));
1060 rt2x00_set_field32(&word, TXD_W0_OFDM,
1061 test_bit(ENTRY_TXD_OFDM_RATE, &desc->flags));
1062 rt2x00_set_field32(&word, TXD_W0_NEW_SEQ,
1063 !!(control->flags & IEEE80211_TXCTL_FIRST_FRAGMENT));
1064 rt2x00_set_field32(&word, TXD_W0_IFS, desc->ifs);
1065 rt2x00_set_field32(&word, TXD_W0_DATABYTE_COUNT, length);
1066 rt2x00_set_field32(&word, TXD_W0_CIPHER, CIPHER_NONE);
1067 rt2x00_desc_write(txd, 0, word);
1070 static int rt2500usb_get_tx_data_len(struct rt2x00_dev *rt2x00dev,
1071 struct sk_buff *skb)
1076 * The length _must_ be a multiple of 2,
1077 * but it must _not_ be a multiple of the USB packet size.
1079 length = roundup(skb->len, 2);
1080 length += (2 * !(length % rt2x00dev->usb_maxpacket));
1086 * TX data initialization
1088 static void rt2500usb_kick_tx_queue(struct rt2x00_dev *rt2x00dev,
1093 if (queue != IEEE80211_TX_QUEUE_BEACON)
1096 rt2500usb_register_read(rt2x00dev, TXRX_CSR19, ®);
1097 if (!rt2x00_get_field16(reg, TXRX_CSR19_BEACON_GEN)) {
1098 rt2x00_set_field16(®, TXRX_CSR19_BEACON_GEN, 1);
1100 * Beacon generation will fail initially.
1101 * To prevent this we need to register the TXRX_CSR19
1102 * register several times.
1104 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1105 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, 0);
1106 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1107 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, 0);
1108 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1113 * RX control handlers
1115 static void rt2500usb_fill_rxdone(struct data_entry *entry,
1116 struct rxdata_entry_desc *desc)
1118 struct urb *urb = entry->priv;
1119 __le32 *rxd = (__le32 *)(entry->skb->data +
1120 (urb->actual_length - entry->ring->desc_size));
1124 rt2x00_desc_read(rxd, 0, &word0);
1125 rt2x00_desc_read(rxd, 1, &word1);
1128 if (rt2x00_get_field32(word0, RXD_W0_CRC_ERROR))
1129 desc->flags |= RX_FLAG_FAILED_FCS_CRC;
1130 if (rt2x00_get_field32(word0, RXD_W0_PHYSICAL_ERROR))
1131 desc->flags |= RX_FLAG_FAILED_PLCP_CRC;
1134 * Obtain the status about this packet.
1136 desc->signal = rt2x00_get_field32(word1, RXD_W1_SIGNAL);
1137 desc->rssi = rt2x00_get_field32(word1, RXD_W1_RSSI) -
1138 entry->ring->rt2x00dev->rssi_offset;
1139 desc->ofdm = rt2x00_get_field32(word0, RXD_W0_OFDM);
1140 desc->size = rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT);
1146 * Interrupt functions.
1148 static void rt2500usb_beacondone(struct urb *urb)
1150 struct data_entry *entry = (struct data_entry *)urb->context;
1151 struct data_ring *ring = entry->ring;
1153 if (!test_bit(DEVICE_ENABLED_RADIO, &ring->rt2x00dev->flags))
1157 * Check if this was the guardian beacon,
1158 * if that was the case we need to send the real beacon now.
1159 * Otherwise we should free the sk_buffer, the device
1160 * should be doing the rest of the work now.
1162 if (ring->index == 1) {
1163 rt2x00_ring_index_done_inc(ring);
1164 entry = rt2x00_get_data_entry(ring);
1165 usb_submit_urb(entry->priv, GFP_ATOMIC);
1166 rt2x00_ring_index_inc(ring);
1167 } else if (ring->index_done == 1) {
1168 entry = rt2x00_get_data_entry_done(ring);
1170 dev_kfree_skb(entry->skb);
1173 rt2x00_ring_index_done_inc(ring);
1178 * Device probe functions.
1180 static int rt2500usb_validate_eeprom(struct rt2x00_dev *rt2x00dev)
1185 rt2x00usb_eeprom_read(rt2x00dev, rt2x00dev->eeprom, EEPROM_SIZE);
1188 * Start validation of the data that has been read.
1190 mac = rt2x00_eeprom_addr(rt2x00dev, EEPROM_MAC_ADDR_0);
1191 if (!is_valid_ether_addr(mac)) {
1192 DECLARE_MAC_BUF(macbuf);
1194 random_ether_addr(mac);
1195 EEPROM(rt2x00dev, "MAC: %s\n", print_mac(macbuf, mac));
1198 rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &word);
1199 if (word == 0xffff) {
1200 rt2x00_set_field16(&word, EEPROM_ANTENNA_NUM, 2);
1201 rt2x00_set_field16(&word, EEPROM_ANTENNA_TX_DEFAULT,
1202 ANTENNA_SW_DIVERSITY);
1203 rt2x00_set_field16(&word, EEPROM_ANTENNA_RX_DEFAULT,
1204 ANTENNA_SW_DIVERSITY);
1205 rt2x00_set_field16(&word, EEPROM_ANTENNA_LED_MODE,
1207 rt2x00_set_field16(&word, EEPROM_ANTENNA_DYN_TXAGC, 0);
1208 rt2x00_set_field16(&word, EEPROM_ANTENNA_HARDWARE_RADIO, 0);
1209 rt2x00_set_field16(&word, EEPROM_ANTENNA_RF_TYPE, RF2522);
1210 rt2x00_eeprom_write(rt2x00dev, EEPROM_ANTENNA, word);
1211 EEPROM(rt2x00dev, "Antenna: 0x%04x\n", word);
1214 rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &word);
1215 if (word == 0xffff) {
1216 rt2x00_set_field16(&word, EEPROM_NIC_CARDBUS_ACCEL, 0);
1217 rt2x00_set_field16(&word, EEPROM_NIC_DYN_BBP_TUNE, 0);
1218 rt2x00_set_field16(&word, EEPROM_NIC_CCK_TX_POWER, 0);
1219 rt2x00_eeprom_write(rt2x00dev, EEPROM_NIC, word);
1220 EEPROM(rt2x00dev, "NIC: 0x%04x\n", word);
1223 rt2x00_eeprom_read(rt2x00dev, EEPROM_CALIBRATE_OFFSET, &word);
1224 if (word == 0xffff) {
1225 rt2x00_set_field16(&word, EEPROM_CALIBRATE_OFFSET_RSSI,
1226 DEFAULT_RSSI_OFFSET);
1227 rt2x00_eeprom_write(rt2x00dev, EEPROM_CALIBRATE_OFFSET, word);
1228 EEPROM(rt2x00dev, "Calibrate offset: 0x%04x\n", word);
1231 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE, &word);
1232 if (word == 0xffff) {
1233 rt2x00_set_field16(&word, EEPROM_BBPTUNE_THRESHOLD, 45);
1234 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE, word);
1235 EEPROM(rt2x00dev, "BBPtune: 0x%04x\n", word);
1238 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_VGC, &word);
1239 if (word == 0xffff) {
1240 rt2x00_set_field16(&word, EEPROM_BBPTUNE_VGCUPPER, 0x40);
1241 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_VGC, word);
1242 EEPROM(rt2x00dev, "BBPtune vgc: 0x%04x\n", word);
1245 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R17, &word);
1246 if (word == 0xffff) {
1247 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R17_LOW, 0x48);
1248 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R17_HIGH, 0x41);
1249 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R17, word);
1250 EEPROM(rt2x00dev, "BBPtune r17: 0x%04x\n", word);
1253 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R24, &word);
1254 if (word == 0xffff) {
1255 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R24_LOW, 0x40);
1256 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R24_HIGH, 0x80);
1257 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R24, word);
1258 EEPROM(rt2x00dev, "BBPtune r24: 0x%04x\n", word);
1261 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R25, &word);
1262 if (word == 0xffff) {
1263 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R25_LOW, 0x40);
1264 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R25_HIGH, 0x50);
1265 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R25, word);
1266 EEPROM(rt2x00dev, "BBPtune r25: 0x%04x\n", word);
1269 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R61, &word);
1270 if (word == 0xffff) {
1271 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R61_LOW, 0x60);
1272 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R61_HIGH, 0x6d);
1273 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R61, word);
1274 EEPROM(rt2x00dev, "BBPtune r61: 0x%04x\n", word);
1280 static int rt2500usb_init_eeprom(struct rt2x00_dev *rt2x00dev)
1287 * Read EEPROM word for configuration.
1289 rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &eeprom);
1292 * Identify RF chipset.
1294 value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RF_TYPE);
1295 rt2500usb_register_read(rt2x00dev, MAC_CSR0, ®);
1296 rt2x00_set_chip(rt2x00dev, RT2570, value, reg);
1298 if (!rt2x00_check_rev(&rt2x00dev->chip, 0)) {
1299 ERROR(rt2x00dev, "Invalid RT chipset detected.\n");
1303 if (!rt2x00_rf(&rt2x00dev->chip, RF2522) &&
1304 !rt2x00_rf(&rt2x00dev->chip, RF2523) &&
1305 !rt2x00_rf(&rt2x00dev->chip, RF2524) &&
1306 !rt2x00_rf(&rt2x00dev->chip, RF2525) &&
1307 !rt2x00_rf(&rt2x00dev->chip, RF2525E) &&
1308 !rt2x00_rf(&rt2x00dev->chip, RF5222)) {
1309 ERROR(rt2x00dev, "Invalid RF chipset detected.\n");
1314 * Identify default antenna configuration.
1316 rt2x00dev->default_ant.tx =
1317 rt2x00_get_field16(eeprom, EEPROM_ANTENNA_TX_DEFAULT);
1318 rt2x00dev->default_ant.rx =
1319 rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RX_DEFAULT);
1322 * When the eeprom indicates SW_DIVERSITY use HW_DIVERSITY instead.
1323 * I am not 100% sure about this, but the legacy drivers do not
1324 * indicate antenna swapping in software is required when
1325 * diversity is enabled.
1327 if (rt2x00dev->default_ant.tx == ANTENNA_SW_DIVERSITY)
1328 rt2x00dev->default_ant.tx = ANTENNA_HW_DIVERSITY;
1329 if (rt2x00dev->default_ant.rx == ANTENNA_SW_DIVERSITY)
1330 rt2x00dev->default_ant.rx = ANTENNA_HW_DIVERSITY;
1333 * Store led mode, for correct led behaviour.
1335 rt2x00dev->led_mode =
1336 rt2x00_get_field16(eeprom, EEPROM_ANTENNA_LED_MODE);
1339 * Check if the BBP tuning should be disabled.
1341 rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &eeprom);
1342 if (rt2x00_get_field16(eeprom, EEPROM_NIC_DYN_BBP_TUNE))
1343 __set_bit(CONFIG_DISABLE_LINK_TUNING, &rt2x00dev->flags);
1346 * Read the RSSI <-> dBm offset information.
1348 rt2x00_eeprom_read(rt2x00dev, EEPROM_CALIBRATE_OFFSET, &eeprom);
1349 rt2x00dev->rssi_offset =
1350 rt2x00_get_field16(eeprom, EEPROM_CALIBRATE_OFFSET_RSSI);
1356 * RF value list for RF2522
1359 static const struct rf_channel rf_vals_bg_2522[] = {
1360 { 1, 0x00002050, 0x000c1fda, 0x00000101, 0 },
1361 { 2, 0x00002050, 0x000c1fee, 0x00000101, 0 },
1362 { 3, 0x00002050, 0x000c2002, 0x00000101, 0 },
1363 { 4, 0x00002050, 0x000c2016, 0x00000101, 0 },
1364 { 5, 0x00002050, 0x000c202a, 0x00000101, 0 },
1365 { 6, 0x00002050, 0x000c203e, 0x00000101, 0 },
1366 { 7, 0x00002050, 0x000c2052, 0x00000101, 0 },
1367 { 8, 0x00002050, 0x000c2066, 0x00000101, 0 },
1368 { 9, 0x00002050, 0x000c207a, 0x00000101, 0 },
1369 { 10, 0x00002050, 0x000c208e, 0x00000101, 0 },
1370 { 11, 0x00002050, 0x000c20a2, 0x00000101, 0 },
1371 { 12, 0x00002050, 0x000c20b6, 0x00000101, 0 },
1372 { 13, 0x00002050, 0x000c20ca, 0x00000101, 0 },
1373 { 14, 0x00002050, 0x000c20fa, 0x00000101, 0 },
1377 * RF value list for RF2523
1380 static const struct rf_channel rf_vals_bg_2523[] = {
1381 { 1, 0x00022010, 0x00000c9e, 0x000e0111, 0x00000a1b },
1382 { 2, 0x00022010, 0x00000ca2, 0x000e0111, 0x00000a1b },
1383 { 3, 0x00022010, 0x00000ca6, 0x000e0111, 0x00000a1b },
1384 { 4, 0x00022010, 0x00000caa, 0x000e0111, 0x00000a1b },
1385 { 5, 0x00022010, 0x00000cae, 0x000e0111, 0x00000a1b },
1386 { 6, 0x00022010, 0x00000cb2, 0x000e0111, 0x00000a1b },
1387 { 7, 0x00022010, 0x00000cb6, 0x000e0111, 0x00000a1b },
1388 { 8, 0x00022010, 0x00000cba, 0x000e0111, 0x00000a1b },
1389 { 9, 0x00022010, 0x00000cbe, 0x000e0111, 0x00000a1b },
1390 { 10, 0x00022010, 0x00000d02, 0x000e0111, 0x00000a1b },
1391 { 11, 0x00022010, 0x00000d06, 0x000e0111, 0x00000a1b },
1392 { 12, 0x00022010, 0x00000d0a, 0x000e0111, 0x00000a1b },
1393 { 13, 0x00022010, 0x00000d0e, 0x000e0111, 0x00000a1b },
1394 { 14, 0x00022010, 0x00000d1a, 0x000e0111, 0x00000a03 },
1398 * RF value list for RF2524
1401 static const struct rf_channel rf_vals_bg_2524[] = {
1402 { 1, 0x00032020, 0x00000c9e, 0x00000101, 0x00000a1b },
1403 { 2, 0x00032020, 0x00000ca2, 0x00000101, 0x00000a1b },
1404 { 3, 0x00032020, 0x00000ca6, 0x00000101, 0x00000a1b },
1405 { 4, 0x00032020, 0x00000caa, 0x00000101, 0x00000a1b },
1406 { 5, 0x00032020, 0x00000cae, 0x00000101, 0x00000a1b },
1407 { 6, 0x00032020, 0x00000cb2, 0x00000101, 0x00000a1b },
1408 { 7, 0x00032020, 0x00000cb6, 0x00000101, 0x00000a1b },
1409 { 8, 0x00032020, 0x00000cba, 0x00000101, 0x00000a1b },
1410 { 9, 0x00032020, 0x00000cbe, 0x00000101, 0x00000a1b },
1411 { 10, 0x00032020, 0x00000d02, 0x00000101, 0x00000a1b },
1412 { 11, 0x00032020, 0x00000d06, 0x00000101, 0x00000a1b },
1413 { 12, 0x00032020, 0x00000d0a, 0x00000101, 0x00000a1b },
1414 { 13, 0x00032020, 0x00000d0e, 0x00000101, 0x00000a1b },
1415 { 14, 0x00032020, 0x00000d1a, 0x00000101, 0x00000a03 },
1419 * RF value list for RF2525
1422 static const struct rf_channel rf_vals_bg_2525[] = {
1423 { 1, 0x00022020, 0x00080c9e, 0x00060111, 0x00000a1b },
1424 { 2, 0x00022020, 0x00080ca2, 0x00060111, 0x00000a1b },
1425 { 3, 0x00022020, 0x00080ca6, 0x00060111, 0x00000a1b },
1426 { 4, 0x00022020, 0x00080caa, 0x00060111, 0x00000a1b },
1427 { 5, 0x00022020, 0x00080cae, 0x00060111, 0x00000a1b },
1428 { 6, 0x00022020, 0x00080cb2, 0x00060111, 0x00000a1b },
1429 { 7, 0x00022020, 0x00080cb6, 0x00060111, 0x00000a1b },
1430 { 8, 0x00022020, 0x00080cba, 0x00060111, 0x00000a1b },
1431 { 9, 0x00022020, 0x00080cbe, 0x00060111, 0x00000a1b },
1432 { 10, 0x00022020, 0x00080d02, 0x00060111, 0x00000a1b },
1433 { 11, 0x00022020, 0x00080d06, 0x00060111, 0x00000a1b },
1434 { 12, 0x00022020, 0x00080d0a, 0x00060111, 0x00000a1b },
1435 { 13, 0x00022020, 0x00080d0e, 0x00060111, 0x00000a1b },
1436 { 14, 0x00022020, 0x00080d1a, 0x00060111, 0x00000a03 },
1440 * RF value list for RF2525e
1443 static const struct rf_channel rf_vals_bg_2525e[] = {
1444 { 1, 0x00022010, 0x0000089a, 0x00060111, 0x00000e1b },
1445 { 2, 0x00022010, 0x0000089e, 0x00060111, 0x00000e07 },
1446 { 3, 0x00022010, 0x0000089e, 0x00060111, 0x00000e1b },
1447 { 4, 0x00022010, 0x000008a2, 0x00060111, 0x00000e07 },
1448 { 5, 0x00022010, 0x000008a2, 0x00060111, 0x00000e1b },
1449 { 6, 0x00022010, 0x000008a6, 0x00060111, 0x00000e07 },
1450 { 7, 0x00022010, 0x000008a6, 0x00060111, 0x00000e1b },
1451 { 8, 0x00022010, 0x000008aa, 0x00060111, 0x00000e07 },
1452 { 9, 0x00022010, 0x000008aa, 0x00060111, 0x00000e1b },
1453 { 10, 0x00022010, 0x000008ae, 0x00060111, 0x00000e07 },
1454 { 11, 0x00022010, 0x000008ae, 0x00060111, 0x00000e1b },
1455 { 12, 0x00022010, 0x000008b2, 0x00060111, 0x00000e07 },
1456 { 13, 0x00022010, 0x000008b2, 0x00060111, 0x00000e1b },
1457 { 14, 0x00022010, 0x000008b6, 0x00060111, 0x00000e23 },
1461 * RF value list for RF5222
1462 * Supports: 2.4 GHz & 5.2 GHz
1464 static const struct rf_channel rf_vals_5222[] = {
1465 { 1, 0x00022020, 0x00001136, 0x00000101, 0x00000a0b },
1466 { 2, 0x00022020, 0x0000113a, 0x00000101, 0x00000a0b },
1467 { 3, 0x00022020, 0x0000113e, 0x00000101, 0x00000a0b },
1468 { 4, 0x00022020, 0x00001182, 0x00000101, 0x00000a0b },
1469 { 5, 0x00022020, 0x00001186, 0x00000101, 0x00000a0b },
1470 { 6, 0x00022020, 0x0000118a, 0x00000101, 0x00000a0b },
1471 { 7, 0x00022020, 0x0000118e, 0x00000101, 0x00000a0b },
1472 { 8, 0x00022020, 0x00001192, 0x00000101, 0x00000a0b },
1473 { 9, 0x00022020, 0x00001196, 0x00000101, 0x00000a0b },
1474 { 10, 0x00022020, 0x0000119a, 0x00000101, 0x00000a0b },
1475 { 11, 0x00022020, 0x0000119e, 0x00000101, 0x00000a0b },
1476 { 12, 0x00022020, 0x000011a2, 0x00000101, 0x00000a0b },
1477 { 13, 0x00022020, 0x000011a6, 0x00000101, 0x00000a0b },
1478 { 14, 0x00022020, 0x000011ae, 0x00000101, 0x00000a1b },
1480 /* 802.11 UNI / HyperLan 2 */
1481 { 36, 0x00022010, 0x00018896, 0x00000101, 0x00000a1f },
1482 { 40, 0x00022010, 0x0001889a, 0x00000101, 0x00000a1f },
1483 { 44, 0x00022010, 0x0001889e, 0x00000101, 0x00000a1f },
1484 { 48, 0x00022010, 0x000188a2, 0x00000101, 0x00000a1f },
1485 { 52, 0x00022010, 0x000188a6, 0x00000101, 0x00000a1f },
1486 { 66, 0x00022010, 0x000188aa, 0x00000101, 0x00000a1f },
1487 { 60, 0x00022010, 0x000188ae, 0x00000101, 0x00000a1f },
1488 { 64, 0x00022010, 0x000188b2, 0x00000101, 0x00000a1f },
1490 /* 802.11 HyperLan 2 */
1491 { 100, 0x00022010, 0x00008802, 0x00000101, 0x00000a0f },
1492 { 104, 0x00022010, 0x00008806, 0x00000101, 0x00000a0f },
1493 { 108, 0x00022010, 0x0000880a, 0x00000101, 0x00000a0f },
1494 { 112, 0x00022010, 0x0000880e, 0x00000101, 0x00000a0f },
1495 { 116, 0x00022010, 0x00008812, 0x00000101, 0x00000a0f },
1496 { 120, 0x00022010, 0x00008816, 0x00000101, 0x00000a0f },
1497 { 124, 0x00022010, 0x0000881a, 0x00000101, 0x00000a0f },
1498 { 128, 0x00022010, 0x0000881e, 0x00000101, 0x00000a0f },
1499 { 132, 0x00022010, 0x00008822, 0x00000101, 0x00000a0f },
1500 { 136, 0x00022010, 0x00008826, 0x00000101, 0x00000a0f },
1503 { 140, 0x00022010, 0x0000882a, 0x00000101, 0x00000a0f },
1504 { 149, 0x00022020, 0x000090a6, 0x00000101, 0x00000a07 },
1505 { 153, 0x00022020, 0x000090ae, 0x00000101, 0x00000a07 },
1506 { 157, 0x00022020, 0x000090b6, 0x00000101, 0x00000a07 },
1507 { 161, 0x00022020, 0x000090be, 0x00000101, 0x00000a07 },
1510 static void rt2500usb_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
1512 struct hw_mode_spec *spec = &rt2x00dev->spec;
1517 * Initialize all hw fields.
1519 rt2x00dev->hw->flags =
1520 IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE |
1521 IEEE80211_HW_RX_INCLUDES_FCS |
1522 IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING;
1523 rt2x00dev->hw->extra_tx_headroom = TXD_DESC_SIZE;
1524 rt2x00dev->hw->max_signal = MAX_SIGNAL;
1525 rt2x00dev->hw->max_rssi = MAX_RX_SSI;
1526 rt2x00dev->hw->queues = 2;
1528 SET_IEEE80211_DEV(rt2x00dev->hw, &rt2x00dev_usb(rt2x00dev)->dev);
1529 SET_IEEE80211_PERM_ADDR(rt2x00dev->hw,
1530 rt2x00_eeprom_addr(rt2x00dev,
1531 EEPROM_MAC_ADDR_0));
1534 * Convert tx_power array in eeprom.
1536 txpower = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_START);
1537 for (i = 0; i < 14; i++)
1538 txpower[i] = TXPOWER_FROM_DEV(txpower[i]);
1541 * Initialize hw_mode information.
1543 spec->num_modes = 2;
1544 spec->num_rates = 12;
1545 spec->tx_power_a = NULL;
1546 spec->tx_power_bg = txpower;
1547 spec->tx_power_default = DEFAULT_TXPOWER;
1549 if (rt2x00_rf(&rt2x00dev->chip, RF2522)) {
1550 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2522);
1551 spec->channels = rf_vals_bg_2522;
1552 } else if (rt2x00_rf(&rt2x00dev->chip, RF2523)) {
1553 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2523);
1554 spec->channels = rf_vals_bg_2523;
1555 } else if (rt2x00_rf(&rt2x00dev->chip, RF2524)) {
1556 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2524);
1557 spec->channels = rf_vals_bg_2524;
1558 } else if (rt2x00_rf(&rt2x00dev->chip, RF2525)) {
1559 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2525);
1560 spec->channels = rf_vals_bg_2525;
1561 } else if (rt2x00_rf(&rt2x00dev->chip, RF2525E)) {
1562 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2525e);
1563 spec->channels = rf_vals_bg_2525e;
1564 } else if (rt2x00_rf(&rt2x00dev->chip, RF5222)) {
1565 spec->num_channels = ARRAY_SIZE(rf_vals_5222);
1566 spec->channels = rf_vals_5222;
1567 spec->num_modes = 3;
1571 static int rt2500usb_probe_hw(struct rt2x00_dev *rt2x00dev)
1576 * Allocate eeprom data.
1578 retval = rt2500usb_validate_eeprom(rt2x00dev);
1582 retval = rt2500usb_init_eeprom(rt2x00dev);
1587 * Initialize hw specifications.
1589 rt2500usb_probe_hw_mode(rt2x00dev);
1592 * This device requires the beacon ring
1594 __set_bit(DRIVER_REQUIRE_BEACON_RING, &rt2x00dev->flags);
1597 * Set the rssi offset.
1599 rt2x00dev->rssi_offset = DEFAULT_RSSI_OFFSET;
1605 * IEEE80211 stack callback functions.
1607 static void rt2500usb_configure_filter(struct ieee80211_hw *hw,
1608 unsigned int changed_flags,
1609 unsigned int *total_flags,
1611 struct dev_addr_list *mc_list)
1613 struct rt2x00_dev *rt2x00dev = hw->priv;
1617 * Mask off any flags we are going to ignore from
1618 * the total_flags field.
1629 * Apply some rules to the filters:
1630 * - Some filters imply different filters to be set.
1631 * - Some things we can't filter out at all.
1634 *total_flags |= FIF_ALLMULTI;
1635 if (*total_flags & FIF_OTHER_BSS ||
1636 *total_flags & FIF_PROMISC_IN_BSS)
1637 *total_flags |= FIF_PROMISC_IN_BSS | FIF_OTHER_BSS;
1640 * Check if there is any work left for us.
1642 if (rt2x00dev->packet_filter == *total_flags)
1644 rt2x00dev->packet_filter = *total_flags;
1647 * When in atomic context, reschedule and let rt2x00lib
1648 * call this function again.
1651 queue_work(rt2x00dev->hw->workqueue, &rt2x00dev->filter_work);
1656 * Start configuration steps.
1657 * Note that the version error will always be dropped
1658 * and broadcast frames will always be accepted since
1659 * there is no filter for it at this time.
1661 rt2500usb_register_read(rt2x00dev, TXRX_CSR2, ®);
1662 rt2x00_set_field16(®, TXRX_CSR2_DROP_CRC,
1663 !(*total_flags & FIF_FCSFAIL));
1664 rt2x00_set_field16(®, TXRX_CSR2_DROP_PHYSICAL,
1665 !(*total_flags & FIF_PLCPFAIL));
1666 rt2x00_set_field16(®, TXRX_CSR2_DROP_CONTROL,
1667 !(*total_flags & FIF_CONTROL));
1668 rt2x00_set_field16(®, TXRX_CSR2_DROP_NOT_TO_ME,
1669 !(*total_flags & FIF_PROMISC_IN_BSS));
1670 rt2x00_set_field16(®, TXRX_CSR2_DROP_TODS,
1671 !(*total_flags & FIF_PROMISC_IN_BSS));
1672 rt2x00_set_field16(®, TXRX_CSR2_DROP_VERSION_ERROR, 1);
1673 rt2x00_set_field16(®, TXRX_CSR2_DROP_MULTICAST,
1674 !(*total_flags & FIF_ALLMULTI));
1675 rt2x00_set_field16(®, TXRX_CSR2_DROP_BROADCAST, 0);
1676 rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
1679 static int rt2500usb_beacon_update(struct ieee80211_hw *hw,
1680 struct sk_buff *skb,
1681 struct ieee80211_tx_control *control)
1683 struct rt2x00_dev *rt2x00dev = hw->priv;
1684 struct usb_device *usb_dev =
1685 interface_to_usbdev(rt2x00dev_usb(rt2x00dev));
1686 struct skb_desc *desc;
1687 struct data_ring *ring;
1688 struct data_entry *beacon;
1689 struct data_entry *guardian;
1690 int pipe = usb_sndbulkpipe(usb_dev, 1);
1694 * Just in case the ieee80211 doesn't set this,
1695 * but we need this queue set for the descriptor
1698 control->queue = IEEE80211_TX_QUEUE_BEACON;
1699 ring = rt2x00lib_get_ring(rt2x00dev, control->queue);
1702 * Obtain 2 entries, one for the guardian byte,
1703 * the second for the actual beacon.
1705 guardian = rt2x00_get_data_entry(ring);
1706 rt2x00_ring_index_inc(ring);
1707 beacon = rt2x00_get_data_entry(ring);
1710 * Add the descriptor in front of the skb.
1712 skb_push(skb, ring->desc_size);
1713 memset(skb->data, 0, ring->desc_size);
1716 * Fill in skb descriptor
1718 desc = get_skb_desc(skb);
1719 desc->desc_len = ring->desc_size;
1720 desc->data_len = skb->len - ring->desc_size;
1721 desc->desc = skb->data;
1722 desc->data = skb->data + ring->desc_size;
1724 desc->entry = beacon;
1726 rt2x00lib_write_tx_desc(rt2x00dev, skb, control);
1729 * USB devices cannot blindly pass the skb->len as the
1730 * length of the data to usb_fill_bulk_urb. Pass the skb
1731 * to the driver to determine what the length should be.
1733 length = rt2500usb_get_tx_data_len(rt2x00dev, skb);
1735 usb_fill_bulk_urb(beacon->priv, usb_dev, pipe,
1736 skb->data, length, rt2500usb_beacondone, beacon);
1739 * Second we need to create the guardian byte.
1740 * We only need a single byte, so lets recycle
1741 * the 'flags' field we are not using for beacons.
1743 guardian->flags = 0;
1744 usb_fill_bulk_urb(guardian->priv, usb_dev, pipe,
1745 &guardian->flags, 1, rt2500usb_beacondone, guardian);
1748 * Send out the guardian byte.
1750 usb_submit_urb(guardian->priv, GFP_ATOMIC);
1753 * Enable beacon generation.
1755 rt2500usb_kick_tx_queue(rt2x00dev, IEEE80211_TX_QUEUE_BEACON);
1760 static const struct ieee80211_ops rt2500usb_mac80211_ops = {
1762 .start = rt2x00mac_start,
1763 .stop = rt2x00mac_stop,
1764 .add_interface = rt2x00mac_add_interface,
1765 .remove_interface = rt2x00mac_remove_interface,
1766 .config = rt2x00mac_config,
1767 .config_interface = rt2x00mac_config_interface,
1768 .configure_filter = rt2500usb_configure_filter,
1769 .get_stats = rt2x00mac_get_stats,
1770 .erp_ie_changed = rt2x00mac_erp_ie_changed,
1771 .conf_tx = rt2x00mac_conf_tx,
1772 .get_tx_stats = rt2x00mac_get_tx_stats,
1773 .beacon_update = rt2500usb_beacon_update,
1776 static const struct rt2x00lib_ops rt2500usb_rt2x00_ops = {
1777 .probe_hw = rt2500usb_probe_hw,
1778 .initialize = rt2x00usb_initialize,
1779 .uninitialize = rt2x00usb_uninitialize,
1780 .set_device_state = rt2500usb_set_device_state,
1781 .link_stats = rt2500usb_link_stats,
1782 .reset_tuner = rt2500usb_reset_tuner,
1783 .link_tuner = rt2500usb_link_tuner,
1784 .write_tx_desc = rt2500usb_write_tx_desc,
1785 .write_tx_data = rt2x00usb_write_tx_data,
1786 .get_tx_data_len = rt2500usb_get_tx_data_len,
1787 .kick_tx_queue = rt2500usb_kick_tx_queue,
1788 .fill_rxdone = rt2500usb_fill_rxdone,
1789 .config_mac_addr = rt2500usb_config_mac_addr,
1790 .config_bssid = rt2500usb_config_bssid,
1791 .config_type = rt2500usb_config_type,
1792 .config_preamble = rt2500usb_config_preamble,
1793 .config = rt2500usb_config,
1796 static const struct rt2x00_ops rt2500usb_ops = {
1797 .name = KBUILD_MODNAME,
1798 .rxd_size = RXD_DESC_SIZE,
1799 .txd_size = TXD_DESC_SIZE,
1800 .eeprom_size = EEPROM_SIZE,
1802 .lib = &rt2500usb_rt2x00_ops,
1803 .hw = &rt2500usb_mac80211_ops,
1804 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
1805 .debugfs = &rt2500usb_rt2x00debug,
1806 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
1810 * rt2500usb module information.
1812 static struct usb_device_id rt2500usb_device_table[] = {
1814 { USB_DEVICE(0x0b05, 0x1706), USB_DEVICE_DATA(&rt2500usb_ops) },
1815 { USB_DEVICE(0x0b05, 0x1707), USB_DEVICE_DATA(&rt2500usb_ops) },
1817 { USB_DEVICE(0x050d, 0x7050), USB_DEVICE_DATA(&rt2500usb_ops) },
1818 { USB_DEVICE(0x050d, 0x7051), USB_DEVICE_DATA(&rt2500usb_ops) },
1819 { USB_DEVICE(0x050d, 0x705a), USB_DEVICE_DATA(&rt2500usb_ops) },
1821 { USB_DEVICE(0x13b1, 0x000d), USB_DEVICE_DATA(&rt2500usb_ops) },
1822 { USB_DEVICE(0x13b1, 0x0011), USB_DEVICE_DATA(&rt2500usb_ops) },
1823 { USB_DEVICE(0x13b1, 0x001a), USB_DEVICE_DATA(&rt2500usb_ops) },
1825 { USB_DEVICE(0x14b2, 0x3c02), USB_DEVICE_DATA(&rt2500usb_ops) },
1827 { USB_DEVICE(0x2001, 0x3c00), USB_DEVICE_DATA(&rt2500usb_ops) },
1829 { USB_DEVICE(0x1044, 0x8001), USB_DEVICE_DATA(&rt2500usb_ops) },
1830 { USB_DEVICE(0x1044, 0x8007), USB_DEVICE_DATA(&rt2500usb_ops) },
1832 { USB_DEVICE(0x06f8, 0xe000), USB_DEVICE_DATA(&rt2500usb_ops) },
1834 { USB_DEVICE(0x0411, 0x0066), USB_DEVICE_DATA(&rt2500usb_ops) },
1835 { USB_DEVICE(0x0411, 0x0067), USB_DEVICE_DATA(&rt2500usb_ops) },
1836 { USB_DEVICE(0x0411, 0x008b), USB_DEVICE_DATA(&rt2500usb_ops) },
1837 { USB_DEVICE(0x0411, 0x0097), USB_DEVICE_DATA(&rt2500usb_ops) },
1840 { USB_DEVICE(0x0db0, 0x6861), USB_DEVICE_DATA(&rt2500usb_ops) },
1841 { USB_DEVICE(0x0db0, 0x6865), USB_DEVICE_DATA(&rt2500usb_ops) },
1842 { USB_DEVICE(0x0db0, 0x6869), USB_DEVICE_DATA(&rt2500usb_ops) },
1844 { USB_DEVICE(0x148f, 0x1706), USB_DEVICE_DATA(&rt2500usb_ops) },
1845 { USB_DEVICE(0x148f, 0x2570), USB_DEVICE_DATA(&rt2500usb_ops) },
1846 { USB_DEVICE(0x148f, 0x2573), USB_DEVICE_DATA(&rt2500usb_ops) },
1847 { USB_DEVICE(0x148f, 0x9020), USB_DEVICE_DATA(&rt2500usb_ops) },
1849 { USB_DEVICE(0x0681, 0x3c06), USB_DEVICE_DATA(&rt2500usb_ops) },
1851 { USB_DEVICE(0x0707, 0xee13), USB_DEVICE_DATA(&rt2500usb_ops) },
1853 { USB_DEVICE(0x114b, 0x0110), USB_DEVICE_DATA(&rt2500usb_ops) },
1855 { USB_DEVICE(0x0eb0, 0x9020), USB_DEVICE_DATA(&rt2500usb_ops) },
1857 { USB_DEVICE(0x5a57, 0x0260), USB_DEVICE_DATA(&rt2500usb_ops) },
1861 MODULE_AUTHOR(DRV_PROJECT);
1862 MODULE_VERSION(DRV_VERSION);
1863 MODULE_DESCRIPTION("Ralink RT2500 USB Wireless LAN driver.");
1864 MODULE_SUPPORTED_DEVICE("Ralink RT2570 USB chipset based cards");
1865 MODULE_DEVICE_TABLE(usb, rt2500usb_device_table);
1866 MODULE_LICENSE("GPL");
1868 static struct usb_driver rt2500usb_driver = {
1869 .name = KBUILD_MODNAME,
1870 .id_table = rt2500usb_device_table,
1871 .probe = rt2x00usb_probe,
1872 .disconnect = rt2x00usb_disconnect,
1873 .suspend = rt2x00usb_suspend,
1874 .resume = rt2x00usb_resume,
1877 static int __init rt2500usb_init(void)
1879 return usb_register(&rt2500usb_driver);
1882 static void __exit rt2500usb_exit(void)
1884 usb_deregister(&rt2500usb_driver);
1887 module_init(rt2500usb_init);
1888 module_exit(rt2500usb_exit);