2 Copyright (C) 2004 - 2008 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 */
285 #ifdef CONFIG_RT2500USB_LEDS
286 static void rt2500usb_led_brightness(struct led_classdev *led_cdev,
287 enum led_brightness brightness)
289 struct rt2x00_led *led =
290 container_of(led_cdev, struct rt2x00_led, led_dev);
291 unsigned int enabled = brightness != LED_OFF;
292 unsigned int activity =
293 led->rt2x00dev->led_flags & LED_SUPPORT_ACTIVITY;
296 NOTICE(led->rt2x00dev,
297 "Ignoring LED brightness command for led %d\n",
302 if (led->type == LED_TYPE_RADIO || led->type == LED_TYPE_ASSOC) {
303 rt2x00_set_field16(&led->rt2x00dev->led_mcu_reg,
304 MAC_CSR20_LINK, enabled);
305 rt2x00_set_field16(&led->rt2x00dev->led_mcu_reg,
306 MAC_CSR20_ACTIVITY, enabled && activity);
309 rt2500usb_register_write(led->rt2x00dev, MAC_CSR20,
310 led->rt2x00dev->led_mcu_reg);
313 #define rt2500usb_led_brightness NULL
314 #endif /* CONFIG_RT2500USB_LEDS */
317 * Configuration handlers.
319 static void rt2500usb_config_filter(struct rt2x00_dev *rt2x00dev,
320 const unsigned int filter_flags)
325 * Start configuration steps.
326 * Note that the version error will always be dropped
327 * and broadcast frames will always be accepted since
328 * there is no filter for it at this time.
330 rt2500usb_register_read(rt2x00dev, TXRX_CSR2, ®);
331 rt2x00_set_field16(®, TXRX_CSR2_DROP_CRC,
332 !(filter_flags & FIF_FCSFAIL));
333 rt2x00_set_field16(®, TXRX_CSR2_DROP_PHYSICAL,
334 !(filter_flags & FIF_PLCPFAIL));
335 rt2x00_set_field16(®, TXRX_CSR2_DROP_CONTROL,
336 !(filter_flags & FIF_CONTROL));
337 rt2x00_set_field16(®, TXRX_CSR2_DROP_NOT_TO_ME,
338 !(filter_flags & FIF_PROMISC_IN_BSS));
339 rt2x00_set_field16(®, TXRX_CSR2_DROP_TODS,
340 !(filter_flags & FIF_PROMISC_IN_BSS));
341 rt2x00_set_field16(®, TXRX_CSR2_DROP_VERSION_ERROR, 1);
342 rt2x00_set_field16(®, TXRX_CSR2_DROP_MULTICAST,
343 !(filter_flags & FIF_ALLMULTI));
344 rt2x00_set_field16(®, TXRX_CSR2_DROP_BROADCAST, 0);
345 rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
348 static void rt2500usb_config_intf(struct rt2x00_dev *rt2x00dev,
349 struct rt2x00_intf *intf,
350 struct rt2x00intf_conf *conf,
351 const unsigned int flags)
353 unsigned int bcn_preload;
356 if (flags & CONFIG_UPDATE_TYPE) {
358 * Enable beacon config
360 bcn_preload = PREAMBLE + get_duration(IEEE80211_HEADER, 20);
361 rt2500usb_register_read(rt2x00dev, TXRX_CSR20, ®);
362 rt2x00_set_field16(®, TXRX_CSR20_OFFSET, bcn_preload >> 6);
363 rt2x00_set_field16(®, TXRX_CSR20_BCN_EXPECT_WINDOW,
364 2 * (conf->type != IEEE80211_IF_TYPE_STA));
365 rt2500usb_register_write(rt2x00dev, TXRX_CSR20, reg);
368 * Enable synchronisation.
370 rt2500usb_register_read(rt2x00dev, TXRX_CSR18, ®);
371 rt2x00_set_field16(®, TXRX_CSR18_OFFSET, 0);
372 rt2500usb_register_write(rt2x00dev, TXRX_CSR18, reg);
374 rt2500usb_register_read(rt2x00dev, TXRX_CSR19, ®);
375 rt2x00_set_field16(®, TXRX_CSR19_TSF_COUNT, 1);
376 rt2x00_set_field16(®, TXRX_CSR19_TSF_SYNC, conf->sync);
377 rt2x00_set_field16(®, TXRX_CSR19_TBCN, 1);
378 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
381 if (flags & CONFIG_UPDATE_MAC)
382 rt2500usb_register_multiwrite(rt2x00dev, MAC_CSR2, conf->mac,
383 (3 * sizeof(__le16)));
385 if (flags & CONFIG_UPDATE_BSSID)
386 rt2500usb_register_multiwrite(rt2x00dev, MAC_CSR5, conf->bssid,
387 (3 * sizeof(__le16)));
390 static void rt2500usb_config_erp(struct rt2x00_dev *rt2x00dev,
391 struct rt2x00lib_erp *erp)
395 rt2500usb_register_read(rt2x00dev, TXRX_CSR1, ®);
396 rt2x00_set_field16(®, TXRX_CSR1_ACK_TIMEOUT, erp->ack_timeout);
397 rt2500usb_register_write(rt2x00dev, TXRX_CSR1, reg);
399 rt2500usb_register_read(rt2x00dev, TXRX_CSR10, ®);
400 rt2x00_set_field16(®, TXRX_CSR10_AUTORESPOND_PREAMBLE,
401 !!erp->short_preamble);
402 rt2500usb_register_write(rt2x00dev, TXRX_CSR10, reg);
405 static void rt2500usb_config_phymode(struct rt2x00_dev *rt2x00dev,
406 const int basic_rate_mask)
408 rt2500usb_register_write(rt2x00dev, TXRX_CSR11, basic_rate_mask);
411 static void rt2500usb_config_channel(struct rt2x00_dev *rt2x00dev,
412 struct rf_channel *rf, const int txpower)
417 rt2x00_set_field32(&rf->rf3, RF3_TXPOWER, TXPOWER_TO_DEV(txpower));
420 * For RT2525E we should first set the channel to half band higher.
422 if (rt2x00_rf(&rt2x00dev->chip, RF2525E)) {
423 static const u32 vals[] = {
424 0x000008aa, 0x000008ae, 0x000008ae, 0x000008b2,
425 0x000008b2, 0x000008b6, 0x000008b6, 0x000008ba,
426 0x000008ba, 0x000008be, 0x000008b7, 0x00000902,
427 0x00000902, 0x00000906
430 rt2500usb_rf_write(rt2x00dev, 2, vals[rf->channel - 1]);
432 rt2500usb_rf_write(rt2x00dev, 4, rf->rf4);
435 rt2500usb_rf_write(rt2x00dev, 1, rf->rf1);
436 rt2500usb_rf_write(rt2x00dev, 2, rf->rf2);
437 rt2500usb_rf_write(rt2x00dev, 3, rf->rf3);
439 rt2500usb_rf_write(rt2x00dev, 4, rf->rf4);
442 static void rt2500usb_config_txpower(struct rt2x00_dev *rt2x00dev,
447 rt2x00_rf_read(rt2x00dev, 3, &rf3);
448 rt2x00_set_field32(&rf3, RF3_TXPOWER, TXPOWER_TO_DEV(txpower));
449 rt2500usb_rf_write(rt2x00dev, 3, rf3);
452 static void rt2500usb_config_antenna(struct rt2x00_dev *rt2x00dev,
453 struct antenna_setup *ant)
461 * We should never come here because rt2x00lib is supposed
462 * to catch this and send us the correct antenna explicitely.
464 BUG_ON(ant->rx == ANTENNA_SW_DIVERSITY ||
465 ant->tx == ANTENNA_SW_DIVERSITY);
467 rt2500usb_bbp_read(rt2x00dev, 2, &r2);
468 rt2500usb_bbp_read(rt2x00dev, 14, &r14);
469 rt2500usb_register_read(rt2x00dev, PHY_CSR5, &csr5);
470 rt2500usb_register_read(rt2x00dev, PHY_CSR6, &csr6);
473 * Configure the TX antenna.
476 case ANTENNA_HW_DIVERSITY:
477 rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 1);
478 rt2x00_set_field16(&csr5, PHY_CSR5_CCK, 1);
479 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM, 1);
482 rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 0);
483 rt2x00_set_field16(&csr5, PHY_CSR5_CCK, 0);
484 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM, 0);
488 rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 2);
489 rt2x00_set_field16(&csr5, PHY_CSR5_CCK, 2);
490 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM, 2);
495 * Configure the RX antenna.
498 case ANTENNA_HW_DIVERSITY:
499 rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 1);
502 rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 0);
506 rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 2);
511 * RT2525E and RT5222 need to flip TX I/Q
513 if (rt2x00_rf(&rt2x00dev->chip, RF2525E) ||
514 rt2x00_rf(&rt2x00dev->chip, RF5222)) {
515 rt2x00_set_field8(&r2, BBP_R2_TX_IQ_FLIP, 1);
516 rt2x00_set_field16(&csr5, PHY_CSR5_CCK_FLIP, 1);
517 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM_FLIP, 1);
520 * RT2525E does not need RX I/Q Flip.
522 if (rt2x00_rf(&rt2x00dev->chip, RF2525E))
523 rt2x00_set_field8(&r14, BBP_R14_RX_IQ_FLIP, 0);
525 rt2x00_set_field16(&csr5, PHY_CSR5_CCK_FLIP, 0);
526 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM_FLIP, 0);
529 rt2500usb_bbp_write(rt2x00dev, 2, r2);
530 rt2500usb_bbp_write(rt2x00dev, 14, r14);
531 rt2500usb_register_write(rt2x00dev, PHY_CSR5, csr5);
532 rt2500usb_register_write(rt2x00dev, PHY_CSR6, csr6);
535 static void rt2500usb_config_duration(struct rt2x00_dev *rt2x00dev,
536 struct rt2x00lib_conf *libconf)
540 rt2500usb_register_write(rt2x00dev, MAC_CSR10, libconf->slot_time);
541 rt2500usb_register_write(rt2x00dev, MAC_CSR11, libconf->sifs);
542 rt2500usb_register_write(rt2x00dev, MAC_CSR12, libconf->eifs);
544 rt2500usb_register_read(rt2x00dev, TXRX_CSR18, ®);
545 rt2x00_set_field16(®, TXRX_CSR18_INTERVAL,
546 libconf->conf->beacon_int * 4);
547 rt2500usb_register_write(rt2x00dev, TXRX_CSR18, reg);
550 static void rt2500usb_config(struct rt2x00_dev *rt2x00dev,
551 struct rt2x00lib_conf *libconf,
552 const unsigned int flags)
554 if (flags & CONFIG_UPDATE_PHYMODE)
555 rt2500usb_config_phymode(rt2x00dev, libconf->basic_rates);
556 if (flags & CONFIG_UPDATE_CHANNEL)
557 rt2500usb_config_channel(rt2x00dev, &libconf->rf,
558 libconf->conf->power_level);
559 if ((flags & CONFIG_UPDATE_TXPOWER) && !(flags & CONFIG_UPDATE_CHANNEL))
560 rt2500usb_config_txpower(rt2x00dev,
561 libconf->conf->power_level);
562 if (flags & CONFIG_UPDATE_ANTENNA)
563 rt2500usb_config_antenna(rt2x00dev, &libconf->ant);
564 if (flags & (CONFIG_UPDATE_SLOT_TIME | CONFIG_UPDATE_BEACON_INT))
565 rt2500usb_config_duration(rt2x00dev, libconf);
571 static void rt2500usb_link_stats(struct rt2x00_dev *rt2x00dev,
572 struct link_qual *qual)
577 * Update FCS error count from register.
579 rt2500usb_register_read(rt2x00dev, STA_CSR0, ®);
580 qual->rx_failed = rt2x00_get_field16(reg, STA_CSR0_FCS_ERROR);
583 * Update False CCA count from register.
585 rt2500usb_register_read(rt2x00dev, STA_CSR3, ®);
586 qual->false_cca = rt2x00_get_field16(reg, STA_CSR3_FALSE_CCA_ERROR);
589 static void rt2500usb_reset_tuner(struct rt2x00_dev *rt2x00dev)
594 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R24, &eeprom);
595 value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_R24_LOW);
596 rt2500usb_bbp_write(rt2x00dev, 24, value);
598 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R25, &eeprom);
599 value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_R25_LOW);
600 rt2500usb_bbp_write(rt2x00dev, 25, value);
602 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R61, &eeprom);
603 value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_R61_LOW);
604 rt2500usb_bbp_write(rt2x00dev, 61, value);
606 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_VGC, &eeprom);
607 value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_VGCUPPER);
608 rt2500usb_bbp_write(rt2x00dev, 17, value);
610 rt2x00dev->link.vgc_level = value;
613 static void rt2500usb_link_tuner(struct rt2x00_dev *rt2x00dev)
615 int rssi = rt2x00_get_link_rssi(&rt2x00dev->link);
628 * Read current r17 value, as well as the sensitivity values
629 * for the r17 register.
631 rt2500usb_bbp_read(rt2x00dev, 17, &r17);
632 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R17, &r17_sens);
634 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_VGC, &vgc_bound);
635 up_bound = rt2x00_get_field16(vgc_bound, EEPROM_BBPTUNE_VGCUPPER);
636 low_bound = rt2x00_get_field16(vgc_bound, EEPROM_BBPTUNE_VGCLOWER);
639 * If we are not associated, we should go straight to the
640 * dynamic CCA tuning.
642 if (!rt2x00dev->intf_associated)
643 goto dynamic_cca_tune;
646 * Determine the BBP tuning threshold and correctly
647 * set BBP 24, 25 and 61.
649 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE, &bbp_thresh);
650 bbp_thresh = rt2x00_get_field16(bbp_thresh, EEPROM_BBPTUNE_THRESHOLD);
652 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R24, &r24);
653 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R25, &r25);
654 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R61, &r61);
656 if ((rssi + bbp_thresh) > 0) {
657 r24 = rt2x00_get_field16(r24, EEPROM_BBPTUNE_R24_HIGH);
658 r25 = rt2x00_get_field16(r25, EEPROM_BBPTUNE_R25_HIGH);
659 r61 = rt2x00_get_field16(r61, EEPROM_BBPTUNE_R61_HIGH);
661 r24 = rt2x00_get_field16(r24, EEPROM_BBPTUNE_R24_LOW);
662 r25 = rt2x00_get_field16(r25, EEPROM_BBPTUNE_R25_LOW);
663 r61 = rt2x00_get_field16(r61, EEPROM_BBPTUNE_R61_LOW);
666 rt2500usb_bbp_write(rt2x00dev, 24, r24);
667 rt2500usb_bbp_write(rt2x00dev, 25, r25);
668 rt2500usb_bbp_write(rt2x00dev, 61, r61);
671 * A too low RSSI will cause too much false CCA which will
672 * then corrupt the R17 tuning. To remidy this the tuning should
673 * be stopped (While making sure the R17 value will not exceed limits)
677 rt2500usb_bbp_write(rt2x00dev, 17, 0x60);
682 * Special big-R17 for short distance
685 sens = rt2x00_get_field16(r17_sens, EEPROM_BBPTUNE_R17_LOW);
687 rt2500usb_bbp_write(rt2x00dev, 17, sens);
692 * Special mid-R17 for middle distance
695 sens = rt2x00_get_field16(r17_sens, EEPROM_BBPTUNE_R17_HIGH);
697 rt2500usb_bbp_write(rt2x00dev, 17, sens);
702 * Leave short or middle distance condition, restore r17
703 * to the dynamic tuning range.
707 up_bound -= (-77 - rssi);
709 if (up_bound < low_bound)
710 up_bound = low_bound;
712 if (r17 > up_bound) {
713 rt2500usb_bbp_write(rt2x00dev, 17, up_bound);
714 rt2x00dev->link.vgc_level = up_bound;
721 * R17 is inside the dynamic tuning range,
722 * start tuning the link based on the false cca counter.
724 if (rt2x00dev->link.qual.false_cca > 512 && r17 < up_bound) {
725 rt2500usb_bbp_write(rt2x00dev, 17, ++r17);
726 rt2x00dev->link.vgc_level = r17;
727 } else if (rt2x00dev->link.qual.false_cca < 100 && r17 > low_bound) {
728 rt2500usb_bbp_write(rt2x00dev, 17, --r17);
729 rt2x00dev->link.vgc_level = r17;
734 * Initialization functions.
736 static int rt2500usb_init_registers(struct rt2x00_dev *rt2x00dev)
740 rt2x00usb_vendor_request_sw(rt2x00dev, USB_DEVICE_MODE, 0x0001,
741 USB_MODE_TEST, REGISTER_TIMEOUT);
742 rt2x00usb_vendor_request_sw(rt2x00dev, USB_SINGLE_WRITE, 0x0308,
743 0x00f0, REGISTER_TIMEOUT);
745 rt2500usb_register_read(rt2x00dev, TXRX_CSR2, ®);
746 rt2x00_set_field16(®, TXRX_CSR2_DISABLE_RX, 1);
747 rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
749 rt2500usb_register_write(rt2x00dev, MAC_CSR13, 0x1111);
750 rt2500usb_register_write(rt2x00dev, MAC_CSR14, 0x1e11);
752 rt2500usb_register_read(rt2x00dev, MAC_CSR1, ®);
753 rt2x00_set_field16(®, MAC_CSR1_SOFT_RESET, 1);
754 rt2x00_set_field16(®, MAC_CSR1_BBP_RESET, 1);
755 rt2x00_set_field16(®, MAC_CSR1_HOST_READY, 0);
756 rt2500usb_register_write(rt2x00dev, MAC_CSR1, reg);
758 rt2500usb_register_read(rt2x00dev, MAC_CSR1, ®);
759 rt2x00_set_field16(®, MAC_CSR1_SOFT_RESET, 0);
760 rt2x00_set_field16(®, MAC_CSR1_BBP_RESET, 0);
761 rt2x00_set_field16(®, MAC_CSR1_HOST_READY, 0);
762 rt2500usb_register_write(rt2x00dev, MAC_CSR1, reg);
764 rt2500usb_register_read(rt2x00dev, MAC_CSR21, ®);
765 rt2x00_set_field16(®, MAC_CSR21_ON_PERIOD, 70);
766 rt2x00_set_field16(®, MAC_CSR21_OFF_PERIOD, 30);
767 rt2500usb_register_write(rt2x00dev, MAC_CSR21, reg);
769 rt2500usb_register_read(rt2x00dev, TXRX_CSR5, ®);
770 rt2x00_set_field16(®, TXRX_CSR5_BBP_ID0, 13);
771 rt2x00_set_field16(®, TXRX_CSR5_BBP_ID0_VALID, 1);
772 rt2x00_set_field16(®, TXRX_CSR5_BBP_ID1, 12);
773 rt2x00_set_field16(®, TXRX_CSR5_BBP_ID1_VALID, 1);
774 rt2500usb_register_write(rt2x00dev, TXRX_CSR5, reg);
776 rt2500usb_register_read(rt2x00dev, TXRX_CSR6, ®);
777 rt2x00_set_field16(®, TXRX_CSR6_BBP_ID0, 10);
778 rt2x00_set_field16(®, TXRX_CSR6_BBP_ID0_VALID, 1);
779 rt2x00_set_field16(®, TXRX_CSR6_BBP_ID1, 11);
780 rt2x00_set_field16(®, TXRX_CSR6_BBP_ID1_VALID, 1);
781 rt2500usb_register_write(rt2x00dev, TXRX_CSR6, reg);
783 rt2500usb_register_read(rt2x00dev, TXRX_CSR7, ®);
784 rt2x00_set_field16(®, TXRX_CSR7_BBP_ID0, 7);
785 rt2x00_set_field16(®, TXRX_CSR7_BBP_ID0_VALID, 1);
786 rt2x00_set_field16(®, TXRX_CSR7_BBP_ID1, 6);
787 rt2x00_set_field16(®, TXRX_CSR7_BBP_ID1_VALID, 1);
788 rt2500usb_register_write(rt2x00dev, TXRX_CSR7, reg);
790 rt2500usb_register_read(rt2x00dev, TXRX_CSR8, ®);
791 rt2x00_set_field16(®, TXRX_CSR8_BBP_ID0, 5);
792 rt2x00_set_field16(®, TXRX_CSR8_BBP_ID0_VALID, 1);
793 rt2x00_set_field16(®, TXRX_CSR8_BBP_ID1, 0);
794 rt2x00_set_field16(®, TXRX_CSR8_BBP_ID1_VALID, 0);
795 rt2500usb_register_write(rt2x00dev, TXRX_CSR8, reg);
797 rt2500usb_register_write(rt2x00dev, TXRX_CSR21, 0xe78f);
798 rt2500usb_register_write(rt2x00dev, MAC_CSR9, 0xff1d);
800 if (rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_AWAKE))
803 rt2500usb_register_read(rt2x00dev, MAC_CSR1, ®);
804 rt2x00_set_field16(®, MAC_CSR1_SOFT_RESET, 0);
805 rt2x00_set_field16(®, MAC_CSR1_BBP_RESET, 0);
806 rt2x00_set_field16(®, MAC_CSR1_HOST_READY, 1);
807 rt2500usb_register_write(rt2x00dev, MAC_CSR1, reg);
809 if (rt2x00_rev(&rt2x00dev->chip) >= RT2570_VERSION_C) {
810 rt2500usb_register_read(rt2x00dev, PHY_CSR2, ®);
811 rt2x00_set_field16(®, PHY_CSR2_LNA, 0);
814 rt2x00_set_field16(®, PHY_CSR2_LNA, 1);
815 rt2x00_set_field16(®, PHY_CSR2_LNA_MODE, 3);
817 rt2500usb_register_write(rt2x00dev, PHY_CSR2, reg);
819 rt2500usb_register_write(rt2x00dev, MAC_CSR11, 0x0002);
820 rt2500usb_register_write(rt2x00dev, MAC_CSR22, 0x0053);
821 rt2500usb_register_write(rt2x00dev, MAC_CSR15, 0x01ee);
822 rt2500usb_register_write(rt2x00dev, MAC_CSR16, 0x0000);
824 rt2500usb_register_read(rt2x00dev, MAC_CSR8, ®);
825 rt2x00_set_field16(®, MAC_CSR8_MAX_FRAME_UNIT,
826 rt2x00dev->rx->data_size);
827 rt2500usb_register_write(rt2x00dev, MAC_CSR8, reg);
829 rt2500usb_register_read(rt2x00dev, TXRX_CSR0, ®);
830 rt2x00_set_field16(®, TXRX_CSR0_IV_OFFSET, IEEE80211_HEADER);
831 rt2x00_set_field16(®, TXRX_CSR0_KEY_ID, 0xff);
832 rt2500usb_register_write(rt2x00dev, TXRX_CSR0, reg);
834 rt2500usb_register_read(rt2x00dev, MAC_CSR18, ®);
835 rt2x00_set_field16(®, MAC_CSR18_DELAY_AFTER_BEACON, 90);
836 rt2500usb_register_write(rt2x00dev, MAC_CSR18, reg);
838 rt2500usb_register_read(rt2x00dev, PHY_CSR4, ®);
839 rt2x00_set_field16(®, PHY_CSR4_LOW_RF_LE, 1);
840 rt2500usb_register_write(rt2x00dev, PHY_CSR4, reg);
842 rt2500usb_register_read(rt2x00dev, TXRX_CSR1, ®);
843 rt2x00_set_field16(®, TXRX_CSR1_AUTO_SEQUENCE, 1);
844 rt2500usb_register_write(rt2x00dev, TXRX_CSR1, reg);
849 static int rt2500usb_init_bbp(struct rt2x00_dev *rt2x00dev)
856 for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
857 rt2500usb_bbp_read(rt2x00dev, 0, &value);
858 if ((value != 0xff) && (value != 0x00))
859 goto continue_csr_init;
860 NOTICE(rt2x00dev, "Waiting for BBP register.\n");
861 udelay(REGISTER_BUSY_DELAY);
864 ERROR(rt2x00dev, "BBP register access failed, aborting.\n");
868 rt2500usb_bbp_write(rt2x00dev, 3, 0x02);
869 rt2500usb_bbp_write(rt2x00dev, 4, 0x19);
870 rt2500usb_bbp_write(rt2x00dev, 14, 0x1c);
871 rt2500usb_bbp_write(rt2x00dev, 15, 0x30);
872 rt2500usb_bbp_write(rt2x00dev, 16, 0xac);
873 rt2500usb_bbp_write(rt2x00dev, 18, 0x18);
874 rt2500usb_bbp_write(rt2x00dev, 19, 0xff);
875 rt2500usb_bbp_write(rt2x00dev, 20, 0x1e);
876 rt2500usb_bbp_write(rt2x00dev, 21, 0x08);
877 rt2500usb_bbp_write(rt2x00dev, 22, 0x08);
878 rt2500usb_bbp_write(rt2x00dev, 23, 0x08);
879 rt2500usb_bbp_write(rt2x00dev, 24, 0x80);
880 rt2500usb_bbp_write(rt2x00dev, 25, 0x50);
881 rt2500usb_bbp_write(rt2x00dev, 26, 0x08);
882 rt2500usb_bbp_write(rt2x00dev, 27, 0x23);
883 rt2500usb_bbp_write(rt2x00dev, 30, 0x10);
884 rt2500usb_bbp_write(rt2x00dev, 31, 0x2b);
885 rt2500usb_bbp_write(rt2x00dev, 32, 0xb9);
886 rt2500usb_bbp_write(rt2x00dev, 34, 0x12);
887 rt2500usb_bbp_write(rt2x00dev, 35, 0x50);
888 rt2500usb_bbp_write(rt2x00dev, 39, 0xc4);
889 rt2500usb_bbp_write(rt2x00dev, 40, 0x02);
890 rt2500usb_bbp_write(rt2x00dev, 41, 0x60);
891 rt2500usb_bbp_write(rt2x00dev, 53, 0x10);
892 rt2500usb_bbp_write(rt2x00dev, 54, 0x18);
893 rt2500usb_bbp_write(rt2x00dev, 56, 0x08);
894 rt2500usb_bbp_write(rt2x00dev, 57, 0x10);
895 rt2500usb_bbp_write(rt2x00dev, 58, 0x08);
896 rt2500usb_bbp_write(rt2x00dev, 61, 0x60);
897 rt2500usb_bbp_write(rt2x00dev, 62, 0x10);
898 rt2500usb_bbp_write(rt2x00dev, 75, 0xff);
900 for (i = 0; i < EEPROM_BBP_SIZE; i++) {
901 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBP_START + i, &eeprom);
903 if (eeprom != 0xffff && eeprom != 0x0000) {
904 reg_id = rt2x00_get_field16(eeprom, EEPROM_BBP_REG_ID);
905 value = rt2x00_get_field16(eeprom, EEPROM_BBP_VALUE);
906 rt2500usb_bbp_write(rt2x00dev, reg_id, value);
914 * Device state switch handlers.
916 static void rt2500usb_toggle_rx(struct rt2x00_dev *rt2x00dev,
917 enum dev_state state)
921 rt2500usb_register_read(rt2x00dev, TXRX_CSR2, ®);
922 rt2x00_set_field16(®, TXRX_CSR2_DISABLE_RX,
923 state == STATE_RADIO_RX_OFF);
924 rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
927 static int rt2500usb_enable_radio(struct rt2x00_dev *rt2x00dev)
930 * Initialize all registers.
932 if (rt2500usb_init_registers(rt2x00dev) ||
933 rt2500usb_init_bbp(rt2x00dev)) {
934 ERROR(rt2x00dev, "Register initialization failed.\n");
941 static void rt2500usb_disable_radio(struct rt2x00_dev *rt2x00dev)
943 rt2500usb_register_write(rt2x00dev, MAC_CSR13, 0x2121);
944 rt2500usb_register_write(rt2x00dev, MAC_CSR14, 0x2121);
947 * Disable synchronisation.
949 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, 0);
951 rt2x00usb_disable_radio(rt2x00dev);
954 static int rt2500usb_set_state(struct rt2x00_dev *rt2x00dev,
955 enum dev_state state)
964 put_to_sleep = (state != STATE_AWAKE);
967 rt2x00_set_field16(®, MAC_CSR17_BBP_DESIRE_STATE, state);
968 rt2x00_set_field16(®, MAC_CSR17_RF_DESIRE_STATE, state);
969 rt2x00_set_field16(®, MAC_CSR17_PUT_TO_SLEEP, put_to_sleep);
970 rt2500usb_register_write(rt2x00dev, MAC_CSR17, reg);
971 rt2x00_set_field16(®, MAC_CSR17_SET_STATE, 1);
972 rt2500usb_register_write(rt2x00dev, MAC_CSR17, reg);
975 * Device is not guaranteed to be in the requested state yet.
976 * We must wait until the register indicates that the
977 * device has entered the correct state.
979 for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
980 rt2500usb_register_read(rt2x00dev, MAC_CSR17, ®2);
981 bbp_state = rt2x00_get_field16(reg2, MAC_CSR17_BBP_CURR_STATE);
982 rf_state = rt2x00_get_field16(reg2, MAC_CSR17_RF_CURR_STATE);
983 if (bbp_state == state && rf_state == state)
985 rt2500usb_register_write(rt2x00dev, MAC_CSR17, reg);
989 NOTICE(rt2x00dev, "Device failed to enter state %d, "
990 "current device state: bbp %d and rf %d.\n",
991 state, bbp_state, rf_state);
996 static int rt2500usb_set_device_state(struct rt2x00_dev *rt2x00dev,
997 enum dev_state state)
1002 case STATE_RADIO_ON:
1003 retval = rt2500usb_enable_radio(rt2x00dev);
1005 case STATE_RADIO_OFF:
1006 rt2500usb_disable_radio(rt2x00dev);
1008 case STATE_RADIO_RX_ON:
1009 case STATE_RADIO_RX_ON_LINK:
1010 rt2500usb_toggle_rx(rt2x00dev, STATE_RADIO_RX_ON);
1012 case STATE_RADIO_RX_OFF:
1013 case STATE_RADIO_RX_OFF_LINK:
1014 rt2500usb_toggle_rx(rt2x00dev, STATE_RADIO_RX_OFF);
1016 case STATE_DEEP_SLEEP:
1020 retval = rt2500usb_set_state(rt2x00dev, state);
1031 * TX descriptor initialization
1033 static void rt2500usb_write_tx_desc(struct rt2x00_dev *rt2x00dev,
1034 struct sk_buff *skb,
1035 struct txentry_desc *txdesc,
1036 struct ieee80211_tx_control *control)
1038 struct skb_frame_desc *skbdesc = get_skb_frame_desc(skb);
1039 __le32 *txd = skbdesc->desc;
1043 * Start writing the descriptor words.
1045 rt2x00_desc_read(txd, 1, &word);
1046 rt2x00_set_field32(&word, TXD_W1_IV_OFFSET, IEEE80211_HEADER);
1047 rt2x00_set_field32(&word, TXD_W1_AIFS, txdesc->aifs);
1048 rt2x00_set_field32(&word, TXD_W1_CWMIN, txdesc->cw_min);
1049 rt2x00_set_field32(&word, TXD_W1_CWMAX, txdesc->cw_max);
1050 rt2x00_desc_write(txd, 1, word);
1052 rt2x00_desc_read(txd, 2, &word);
1053 rt2x00_set_field32(&word, TXD_W2_PLCP_SIGNAL, txdesc->signal);
1054 rt2x00_set_field32(&word, TXD_W2_PLCP_SERVICE, txdesc->service);
1055 rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_LOW, txdesc->length_low);
1056 rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_HIGH, txdesc->length_high);
1057 rt2x00_desc_write(txd, 2, word);
1059 rt2x00_desc_read(txd, 0, &word);
1060 rt2x00_set_field32(&word, TXD_W0_RETRY_LIMIT, control->retry_limit);
1061 rt2x00_set_field32(&word, TXD_W0_MORE_FRAG,
1062 test_bit(ENTRY_TXD_MORE_FRAG, &txdesc->flags));
1063 rt2x00_set_field32(&word, TXD_W0_ACK,
1064 test_bit(ENTRY_TXD_ACK, &txdesc->flags));
1065 rt2x00_set_field32(&word, TXD_W0_TIMESTAMP,
1066 test_bit(ENTRY_TXD_REQ_TIMESTAMP, &txdesc->flags));
1067 rt2x00_set_field32(&word, TXD_W0_OFDM,
1068 test_bit(ENTRY_TXD_OFDM_RATE, &txdesc->flags));
1069 rt2x00_set_field32(&word, TXD_W0_NEW_SEQ,
1070 !!(control->flags & IEEE80211_TXCTL_FIRST_FRAGMENT));
1071 rt2x00_set_field32(&word, TXD_W0_IFS, txdesc->ifs);
1072 rt2x00_set_field32(&word, TXD_W0_DATABYTE_COUNT, skbdesc->data_len);
1073 rt2x00_set_field32(&word, TXD_W0_CIPHER, CIPHER_NONE);
1074 rt2x00_desc_write(txd, 0, word);
1077 static int rt2500usb_get_tx_data_len(struct rt2x00_dev *rt2x00dev,
1078 struct sk_buff *skb)
1083 * The length _must_ be a multiple of 2,
1084 * but it must _not_ be a multiple of the USB packet size.
1086 length = roundup(skb->len, 2);
1087 length += (2 * !(length % rt2x00dev->usb_maxpacket));
1093 * TX data initialization
1095 static void rt2500usb_kick_tx_queue(struct rt2x00_dev *rt2x00dev,
1096 const unsigned int queue)
1100 if (queue != RT2X00_BCN_QUEUE_BEACON)
1103 rt2500usb_register_read(rt2x00dev, TXRX_CSR19, ®);
1104 if (!rt2x00_get_field16(reg, TXRX_CSR19_BEACON_GEN)) {
1105 rt2x00_set_field16(®, TXRX_CSR19_TSF_COUNT, 1);
1106 rt2x00_set_field16(®, TXRX_CSR19_TBCN, 1);
1107 rt2x00_set_field16(®, TXRX_CSR19_BEACON_GEN, 1);
1109 * Beacon generation will fail initially.
1110 * To prevent this we need to register the TXRX_CSR19
1111 * register several times.
1113 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1114 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, 0);
1115 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1116 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, 0);
1117 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1122 * RX control handlers
1124 static void rt2500usb_fill_rxdone(struct queue_entry *entry,
1125 struct rxdone_entry_desc *rxdesc)
1127 struct queue_entry_priv_usb_rx *priv_rx = entry->priv_data;
1128 struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
1130 (__le32 *)(entry->skb->data +
1131 (priv_rx->urb->actual_length - entry->queue->desc_size));
1132 unsigned int offset = entry->queue->desc_size + 2;
1137 * Copy descriptor to the available headroom inside the skbuffer.
1139 skb_push(entry->skb, offset);
1140 memcpy(entry->skb->data, rxd, entry->queue->desc_size);
1141 rxd = (__le32 *)entry->skb->data;
1144 * The descriptor is now aligned to 4 bytes and thus it is
1145 * now safe to read it on all architectures.
1147 rt2x00_desc_read(rxd, 0, &word0);
1148 rt2x00_desc_read(rxd, 1, &word1);
1151 if (rt2x00_get_field32(word0, RXD_W0_CRC_ERROR))
1152 rxdesc->flags |= RX_FLAG_FAILED_FCS_CRC;
1153 if (rt2x00_get_field32(word0, RXD_W0_PHYSICAL_ERROR))
1154 rxdesc->flags |= RX_FLAG_FAILED_PLCP_CRC;
1157 * Obtain the status about this packet.
1158 * When frame was received with an OFDM bitrate,
1159 * the signal is the PLCP value. If it was received with
1160 * a CCK bitrate the signal is the rate in 100kbit/s.
1162 rxdesc->signal = rt2x00_get_field32(word1, RXD_W1_SIGNAL);
1163 rxdesc->rssi = rt2x00_get_field32(word1, RXD_W1_RSSI) -
1164 entry->queue->rt2x00dev->rssi_offset;
1165 rxdesc->size = rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT);
1167 rxdesc->dev_flags = 0;
1168 if (rt2x00_get_field32(word0, RXD_W0_OFDM))
1169 rxdesc->dev_flags |= RXDONE_SIGNAL_PLCP;
1170 if (rt2x00_get_field32(word0, RXD_W0_MY_BSS))
1171 rxdesc->dev_flags |= RXDONE_MY_BSS;
1174 * Adjust the skb memory window to the frame boundaries.
1176 skb_pull(entry->skb, offset);
1177 skb_trim(entry->skb, rxdesc->size);
1180 * Set descriptor and data pointer.
1182 skbdesc->data = entry->skb->data;
1183 skbdesc->data_len = rxdesc->size;
1184 skbdesc->desc = rxd;
1185 skbdesc->desc_len = entry->queue->desc_size;
1189 * Interrupt functions.
1191 static void rt2500usb_beacondone(struct urb *urb)
1193 struct queue_entry *entry = (struct queue_entry *)urb->context;
1194 struct queue_entry_priv_usb_bcn *priv_bcn = entry->priv_data;
1196 if (!test_bit(DEVICE_ENABLED_RADIO, &entry->queue->rt2x00dev->flags))
1200 * Check if this was the guardian beacon,
1201 * if that was the case we need to send the real beacon now.
1202 * Otherwise we should free the sk_buffer, the device
1203 * should be doing the rest of the work now.
1205 if (priv_bcn->guardian_urb == urb) {
1206 usb_submit_urb(priv_bcn->urb, GFP_ATOMIC);
1207 } else if (priv_bcn->urb == urb) {
1208 dev_kfree_skb(entry->skb);
1214 * Device probe functions.
1216 static int rt2500usb_validate_eeprom(struct rt2x00_dev *rt2x00dev)
1222 rt2x00usb_eeprom_read(rt2x00dev, rt2x00dev->eeprom, EEPROM_SIZE);
1225 * Start validation of the data that has been read.
1227 mac = rt2x00_eeprom_addr(rt2x00dev, EEPROM_MAC_ADDR_0);
1228 if (!is_valid_ether_addr(mac)) {
1229 DECLARE_MAC_BUF(macbuf);
1231 random_ether_addr(mac);
1232 EEPROM(rt2x00dev, "MAC: %s\n", print_mac(macbuf, mac));
1235 rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &word);
1236 if (word == 0xffff) {
1237 rt2x00_set_field16(&word, EEPROM_ANTENNA_NUM, 2);
1238 rt2x00_set_field16(&word, EEPROM_ANTENNA_TX_DEFAULT,
1239 ANTENNA_SW_DIVERSITY);
1240 rt2x00_set_field16(&word, EEPROM_ANTENNA_RX_DEFAULT,
1241 ANTENNA_SW_DIVERSITY);
1242 rt2x00_set_field16(&word, EEPROM_ANTENNA_LED_MODE,
1244 rt2x00_set_field16(&word, EEPROM_ANTENNA_DYN_TXAGC, 0);
1245 rt2x00_set_field16(&word, EEPROM_ANTENNA_HARDWARE_RADIO, 0);
1246 rt2x00_set_field16(&word, EEPROM_ANTENNA_RF_TYPE, RF2522);
1247 rt2x00_eeprom_write(rt2x00dev, EEPROM_ANTENNA, word);
1248 EEPROM(rt2x00dev, "Antenna: 0x%04x\n", word);
1251 rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &word);
1252 if (word == 0xffff) {
1253 rt2x00_set_field16(&word, EEPROM_NIC_CARDBUS_ACCEL, 0);
1254 rt2x00_set_field16(&word, EEPROM_NIC_DYN_BBP_TUNE, 0);
1255 rt2x00_set_field16(&word, EEPROM_NIC_CCK_TX_POWER, 0);
1256 rt2x00_eeprom_write(rt2x00dev, EEPROM_NIC, word);
1257 EEPROM(rt2x00dev, "NIC: 0x%04x\n", word);
1260 rt2x00_eeprom_read(rt2x00dev, EEPROM_CALIBRATE_OFFSET, &word);
1261 if (word == 0xffff) {
1262 rt2x00_set_field16(&word, EEPROM_CALIBRATE_OFFSET_RSSI,
1263 DEFAULT_RSSI_OFFSET);
1264 rt2x00_eeprom_write(rt2x00dev, EEPROM_CALIBRATE_OFFSET, word);
1265 EEPROM(rt2x00dev, "Calibrate offset: 0x%04x\n", word);
1268 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE, &word);
1269 if (word == 0xffff) {
1270 rt2x00_set_field16(&word, EEPROM_BBPTUNE_THRESHOLD, 45);
1271 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE, word);
1272 EEPROM(rt2x00dev, "BBPtune: 0x%04x\n", word);
1276 * Switch lower vgc bound to current BBP R17 value,
1277 * lower the value a bit for better quality.
1279 rt2500usb_bbp_read(rt2x00dev, 17, &bbp);
1282 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_VGC, &word);
1283 if (word == 0xffff) {
1284 rt2x00_set_field16(&word, EEPROM_BBPTUNE_VGCUPPER, 0x40);
1285 rt2x00_set_field16(&word, EEPROM_BBPTUNE_VGCLOWER, bbp);
1286 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_VGC, word);
1287 EEPROM(rt2x00dev, "BBPtune vgc: 0x%04x\n", word);
1290 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R17, &word);
1291 if (word == 0xffff) {
1292 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R17_LOW, 0x48);
1293 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R17_HIGH, 0x41);
1294 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R17, word);
1295 EEPROM(rt2x00dev, "BBPtune r17: 0x%04x\n", word);
1297 rt2x00_set_field16(&word, EEPROM_BBPTUNE_VGCLOWER, bbp);
1298 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_VGC, word);
1301 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R24, &word);
1302 if (word == 0xffff) {
1303 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R24_LOW, 0x40);
1304 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R24_HIGH, 0x80);
1305 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R24, word);
1306 EEPROM(rt2x00dev, "BBPtune r24: 0x%04x\n", word);
1309 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R25, &word);
1310 if (word == 0xffff) {
1311 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R25_LOW, 0x40);
1312 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R25_HIGH, 0x50);
1313 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R25, word);
1314 EEPROM(rt2x00dev, "BBPtune r25: 0x%04x\n", word);
1317 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R61, &word);
1318 if (word == 0xffff) {
1319 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R61_LOW, 0x60);
1320 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R61_HIGH, 0x6d);
1321 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R61, word);
1322 EEPROM(rt2x00dev, "BBPtune r61: 0x%04x\n", word);
1328 static int rt2500usb_init_eeprom(struct rt2x00_dev *rt2x00dev)
1335 * Read EEPROM word for configuration.
1337 rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &eeprom);
1340 * Identify RF chipset.
1342 value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RF_TYPE);
1343 rt2500usb_register_read(rt2x00dev, MAC_CSR0, ®);
1344 rt2x00_set_chip(rt2x00dev, RT2570, value, reg);
1346 if (!rt2x00_check_rev(&rt2x00dev->chip, 0)) {
1347 ERROR(rt2x00dev, "Invalid RT chipset detected.\n");
1351 if (!rt2x00_rf(&rt2x00dev->chip, RF2522) &&
1352 !rt2x00_rf(&rt2x00dev->chip, RF2523) &&
1353 !rt2x00_rf(&rt2x00dev->chip, RF2524) &&
1354 !rt2x00_rf(&rt2x00dev->chip, RF2525) &&
1355 !rt2x00_rf(&rt2x00dev->chip, RF2525E) &&
1356 !rt2x00_rf(&rt2x00dev->chip, RF5222)) {
1357 ERROR(rt2x00dev, "Invalid RF chipset detected.\n");
1362 * Identify default antenna configuration.
1364 rt2x00dev->default_ant.tx =
1365 rt2x00_get_field16(eeprom, EEPROM_ANTENNA_TX_DEFAULT);
1366 rt2x00dev->default_ant.rx =
1367 rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RX_DEFAULT);
1370 * When the eeprom indicates SW_DIVERSITY use HW_DIVERSITY instead.
1371 * I am not 100% sure about this, but the legacy drivers do not
1372 * indicate antenna swapping in software is required when
1373 * diversity is enabled.
1375 if (rt2x00dev->default_ant.tx == ANTENNA_SW_DIVERSITY)
1376 rt2x00dev->default_ant.tx = ANTENNA_HW_DIVERSITY;
1377 if (rt2x00dev->default_ant.rx == ANTENNA_SW_DIVERSITY)
1378 rt2x00dev->default_ant.rx = ANTENNA_HW_DIVERSITY;
1381 * Store led mode, for correct led behaviour.
1383 #ifdef CONFIG_RT2500USB_LEDS
1384 value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_LED_MODE);
1388 case LED_MODE_ALPHA:
1389 case LED_MODE_DEFAULT:
1390 rt2x00dev->led_flags = LED_SUPPORT_RADIO;
1392 case LED_MODE_TXRX_ACTIVITY:
1393 rt2x00dev->led_flags =
1394 LED_SUPPORT_RADIO | LED_SUPPORT_ACTIVITY;
1396 case LED_MODE_SIGNAL_STRENGTH:
1397 rt2x00dev->led_flags = LED_SUPPORT_RADIO;
1402 * Store the current led register value, we need it later
1403 * in set_brightness but that is called in irq context which
1404 * means we can't use rt2500usb_register_read() at that time.
1406 rt2500usb_register_read(rt2x00dev, MAC_CSR20, &rt2x00dev->led_mcu_reg);
1407 #endif /* CONFIG_RT2500USB_LEDS */
1410 * Check if the BBP tuning should be disabled.
1412 rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &eeprom);
1413 if (rt2x00_get_field16(eeprom, EEPROM_NIC_DYN_BBP_TUNE))
1414 __set_bit(CONFIG_DISABLE_LINK_TUNING, &rt2x00dev->flags);
1417 * Read the RSSI <-> dBm offset information.
1419 rt2x00_eeprom_read(rt2x00dev, EEPROM_CALIBRATE_OFFSET, &eeprom);
1420 rt2x00dev->rssi_offset =
1421 rt2x00_get_field16(eeprom, EEPROM_CALIBRATE_OFFSET_RSSI);
1427 * RF value list for RF2522
1430 static const struct rf_channel rf_vals_bg_2522[] = {
1431 { 1, 0x00002050, 0x000c1fda, 0x00000101, 0 },
1432 { 2, 0x00002050, 0x000c1fee, 0x00000101, 0 },
1433 { 3, 0x00002050, 0x000c2002, 0x00000101, 0 },
1434 { 4, 0x00002050, 0x000c2016, 0x00000101, 0 },
1435 { 5, 0x00002050, 0x000c202a, 0x00000101, 0 },
1436 { 6, 0x00002050, 0x000c203e, 0x00000101, 0 },
1437 { 7, 0x00002050, 0x000c2052, 0x00000101, 0 },
1438 { 8, 0x00002050, 0x000c2066, 0x00000101, 0 },
1439 { 9, 0x00002050, 0x000c207a, 0x00000101, 0 },
1440 { 10, 0x00002050, 0x000c208e, 0x00000101, 0 },
1441 { 11, 0x00002050, 0x000c20a2, 0x00000101, 0 },
1442 { 12, 0x00002050, 0x000c20b6, 0x00000101, 0 },
1443 { 13, 0x00002050, 0x000c20ca, 0x00000101, 0 },
1444 { 14, 0x00002050, 0x000c20fa, 0x00000101, 0 },
1448 * RF value list for RF2523
1451 static const struct rf_channel rf_vals_bg_2523[] = {
1452 { 1, 0x00022010, 0x00000c9e, 0x000e0111, 0x00000a1b },
1453 { 2, 0x00022010, 0x00000ca2, 0x000e0111, 0x00000a1b },
1454 { 3, 0x00022010, 0x00000ca6, 0x000e0111, 0x00000a1b },
1455 { 4, 0x00022010, 0x00000caa, 0x000e0111, 0x00000a1b },
1456 { 5, 0x00022010, 0x00000cae, 0x000e0111, 0x00000a1b },
1457 { 6, 0x00022010, 0x00000cb2, 0x000e0111, 0x00000a1b },
1458 { 7, 0x00022010, 0x00000cb6, 0x000e0111, 0x00000a1b },
1459 { 8, 0x00022010, 0x00000cba, 0x000e0111, 0x00000a1b },
1460 { 9, 0x00022010, 0x00000cbe, 0x000e0111, 0x00000a1b },
1461 { 10, 0x00022010, 0x00000d02, 0x000e0111, 0x00000a1b },
1462 { 11, 0x00022010, 0x00000d06, 0x000e0111, 0x00000a1b },
1463 { 12, 0x00022010, 0x00000d0a, 0x000e0111, 0x00000a1b },
1464 { 13, 0x00022010, 0x00000d0e, 0x000e0111, 0x00000a1b },
1465 { 14, 0x00022010, 0x00000d1a, 0x000e0111, 0x00000a03 },
1469 * RF value list for RF2524
1472 static const struct rf_channel rf_vals_bg_2524[] = {
1473 { 1, 0x00032020, 0x00000c9e, 0x00000101, 0x00000a1b },
1474 { 2, 0x00032020, 0x00000ca2, 0x00000101, 0x00000a1b },
1475 { 3, 0x00032020, 0x00000ca6, 0x00000101, 0x00000a1b },
1476 { 4, 0x00032020, 0x00000caa, 0x00000101, 0x00000a1b },
1477 { 5, 0x00032020, 0x00000cae, 0x00000101, 0x00000a1b },
1478 { 6, 0x00032020, 0x00000cb2, 0x00000101, 0x00000a1b },
1479 { 7, 0x00032020, 0x00000cb6, 0x00000101, 0x00000a1b },
1480 { 8, 0x00032020, 0x00000cba, 0x00000101, 0x00000a1b },
1481 { 9, 0x00032020, 0x00000cbe, 0x00000101, 0x00000a1b },
1482 { 10, 0x00032020, 0x00000d02, 0x00000101, 0x00000a1b },
1483 { 11, 0x00032020, 0x00000d06, 0x00000101, 0x00000a1b },
1484 { 12, 0x00032020, 0x00000d0a, 0x00000101, 0x00000a1b },
1485 { 13, 0x00032020, 0x00000d0e, 0x00000101, 0x00000a1b },
1486 { 14, 0x00032020, 0x00000d1a, 0x00000101, 0x00000a03 },
1490 * RF value list for RF2525
1493 static const struct rf_channel rf_vals_bg_2525[] = {
1494 { 1, 0x00022020, 0x00080c9e, 0x00060111, 0x00000a1b },
1495 { 2, 0x00022020, 0x00080ca2, 0x00060111, 0x00000a1b },
1496 { 3, 0x00022020, 0x00080ca6, 0x00060111, 0x00000a1b },
1497 { 4, 0x00022020, 0x00080caa, 0x00060111, 0x00000a1b },
1498 { 5, 0x00022020, 0x00080cae, 0x00060111, 0x00000a1b },
1499 { 6, 0x00022020, 0x00080cb2, 0x00060111, 0x00000a1b },
1500 { 7, 0x00022020, 0x00080cb6, 0x00060111, 0x00000a1b },
1501 { 8, 0x00022020, 0x00080cba, 0x00060111, 0x00000a1b },
1502 { 9, 0x00022020, 0x00080cbe, 0x00060111, 0x00000a1b },
1503 { 10, 0x00022020, 0x00080d02, 0x00060111, 0x00000a1b },
1504 { 11, 0x00022020, 0x00080d06, 0x00060111, 0x00000a1b },
1505 { 12, 0x00022020, 0x00080d0a, 0x00060111, 0x00000a1b },
1506 { 13, 0x00022020, 0x00080d0e, 0x00060111, 0x00000a1b },
1507 { 14, 0x00022020, 0x00080d1a, 0x00060111, 0x00000a03 },
1511 * RF value list for RF2525e
1514 static const struct rf_channel rf_vals_bg_2525e[] = {
1515 { 1, 0x00022010, 0x0000089a, 0x00060111, 0x00000e1b },
1516 { 2, 0x00022010, 0x0000089e, 0x00060111, 0x00000e07 },
1517 { 3, 0x00022010, 0x0000089e, 0x00060111, 0x00000e1b },
1518 { 4, 0x00022010, 0x000008a2, 0x00060111, 0x00000e07 },
1519 { 5, 0x00022010, 0x000008a2, 0x00060111, 0x00000e1b },
1520 { 6, 0x00022010, 0x000008a6, 0x00060111, 0x00000e07 },
1521 { 7, 0x00022010, 0x000008a6, 0x00060111, 0x00000e1b },
1522 { 8, 0x00022010, 0x000008aa, 0x00060111, 0x00000e07 },
1523 { 9, 0x00022010, 0x000008aa, 0x00060111, 0x00000e1b },
1524 { 10, 0x00022010, 0x000008ae, 0x00060111, 0x00000e07 },
1525 { 11, 0x00022010, 0x000008ae, 0x00060111, 0x00000e1b },
1526 { 12, 0x00022010, 0x000008b2, 0x00060111, 0x00000e07 },
1527 { 13, 0x00022010, 0x000008b2, 0x00060111, 0x00000e1b },
1528 { 14, 0x00022010, 0x000008b6, 0x00060111, 0x00000e23 },
1532 * RF value list for RF5222
1533 * Supports: 2.4 GHz & 5.2 GHz
1535 static const struct rf_channel rf_vals_5222[] = {
1536 { 1, 0x00022020, 0x00001136, 0x00000101, 0x00000a0b },
1537 { 2, 0x00022020, 0x0000113a, 0x00000101, 0x00000a0b },
1538 { 3, 0x00022020, 0x0000113e, 0x00000101, 0x00000a0b },
1539 { 4, 0x00022020, 0x00001182, 0x00000101, 0x00000a0b },
1540 { 5, 0x00022020, 0x00001186, 0x00000101, 0x00000a0b },
1541 { 6, 0x00022020, 0x0000118a, 0x00000101, 0x00000a0b },
1542 { 7, 0x00022020, 0x0000118e, 0x00000101, 0x00000a0b },
1543 { 8, 0x00022020, 0x00001192, 0x00000101, 0x00000a0b },
1544 { 9, 0x00022020, 0x00001196, 0x00000101, 0x00000a0b },
1545 { 10, 0x00022020, 0x0000119a, 0x00000101, 0x00000a0b },
1546 { 11, 0x00022020, 0x0000119e, 0x00000101, 0x00000a0b },
1547 { 12, 0x00022020, 0x000011a2, 0x00000101, 0x00000a0b },
1548 { 13, 0x00022020, 0x000011a6, 0x00000101, 0x00000a0b },
1549 { 14, 0x00022020, 0x000011ae, 0x00000101, 0x00000a1b },
1551 /* 802.11 UNI / HyperLan 2 */
1552 { 36, 0x00022010, 0x00018896, 0x00000101, 0x00000a1f },
1553 { 40, 0x00022010, 0x0001889a, 0x00000101, 0x00000a1f },
1554 { 44, 0x00022010, 0x0001889e, 0x00000101, 0x00000a1f },
1555 { 48, 0x00022010, 0x000188a2, 0x00000101, 0x00000a1f },
1556 { 52, 0x00022010, 0x000188a6, 0x00000101, 0x00000a1f },
1557 { 66, 0x00022010, 0x000188aa, 0x00000101, 0x00000a1f },
1558 { 60, 0x00022010, 0x000188ae, 0x00000101, 0x00000a1f },
1559 { 64, 0x00022010, 0x000188b2, 0x00000101, 0x00000a1f },
1561 /* 802.11 HyperLan 2 */
1562 { 100, 0x00022010, 0x00008802, 0x00000101, 0x00000a0f },
1563 { 104, 0x00022010, 0x00008806, 0x00000101, 0x00000a0f },
1564 { 108, 0x00022010, 0x0000880a, 0x00000101, 0x00000a0f },
1565 { 112, 0x00022010, 0x0000880e, 0x00000101, 0x00000a0f },
1566 { 116, 0x00022010, 0x00008812, 0x00000101, 0x00000a0f },
1567 { 120, 0x00022010, 0x00008816, 0x00000101, 0x00000a0f },
1568 { 124, 0x00022010, 0x0000881a, 0x00000101, 0x00000a0f },
1569 { 128, 0x00022010, 0x0000881e, 0x00000101, 0x00000a0f },
1570 { 132, 0x00022010, 0x00008822, 0x00000101, 0x00000a0f },
1571 { 136, 0x00022010, 0x00008826, 0x00000101, 0x00000a0f },
1574 { 140, 0x00022010, 0x0000882a, 0x00000101, 0x00000a0f },
1575 { 149, 0x00022020, 0x000090a6, 0x00000101, 0x00000a07 },
1576 { 153, 0x00022020, 0x000090ae, 0x00000101, 0x00000a07 },
1577 { 157, 0x00022020, 0x000090b6, 0x00000101, 0x00000a07 },
1578 { 161, 0x00022020, 0x000090be, 0x00000101, 0x00000a07 },
1581 static void rt2500usb_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
1583 struct hw_mode_spec *spec = &rt2x00dev->spec;
1588 * Initialize all hw fields.
1590 rt2x00dev->hw->flags =
1591 IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE |
1592 IEEE80211_HW_RX_INCLUDES_FCS |
1593 IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING;
1594 rt2x00dev->hw->extra_tx_headroom = TXD_DESC_SIZE;
1595 rt2x00dev->hw->max_signal = MAX_SIGNAL;
1596 rt2x00dev->hw->max_rssi = MAX_RX_SSI;
1597 rt2x00dev->hw->queues = 2;
1599 SET_IEEE80211_DEV(rt2x00dev->hw, &rt2x00dev_usb(rt2x00dev)->dev);
1600 SET_IEEE80211_PERM_ADDR(rt2x00dev->hw,
1601 rt2x00_eeprom_addr(rt2x00dev,
1602 EEPROM_MAC_ADDR_0));
1605 * Convert tx_power array in eeprom.
1607 txpower = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_START);
1608 for (i = 0; i < 14; i++)
1609 txpower[i] = TXPOWER_FROM_DEV(txpower[i]);
1612 * Initialize hw_mode information.
1614 spec->supported_bands = SUPPORT_BAND_2GHZ;
1615 spec->supported_rates = SUPPORT_RATE_CCK | SUPPORT_RATE_OFDM;
1616 spec->tx_power_a = NULL;
1617 spec->tx_power_bg = txpower;
1618 spec->tx_power_default = DEFAULT_TXPOWER;
1620 if (rt2x00_rf(&rt2x00dev->chip, RF2522)) {
1621 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2522);
1622 spec->channels = rf_vals_bg_2522;
1623 } else if (rt2x00_rf(&rt2x00dev->chip, RF2523)) {
1624 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2523);
1625 spec->channels = rf_vals_bg_2523;
1626 } else if (rt2x00_rf(&rt2x00dev->chip, RF2524)) {
1627 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2524);
1628 spec->channels = rf_vals_bg_2524;
1629 } else if (rt2x00_rf(&rt2x00dev->chip, RF2525)) {
1630 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2525);
1631 spec->channels = rf_vals_bg_2525;
1632 } else if (rt2x00_rf(&rt2x00dev->chip, RF2525E)) {
1633 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2525e);
1634 spec->channels = rf_vals_bg_2525e;
1635 } else if (rt2x00_rf(&rt2x00dev->chip, RF5222)) {
1636 spec->supported_bands |= SUPPORT_BAND_5GHZ;
1637 spec->num_channels = ARRAY_SIZE(rf_vals_5222);
1638 spec->channels = rf_vals_5222;
1642 static int rt2500usb_probe_hw(struct rt2x00_dev *rt2x00dev)
1647 * Allocate eeprom data.
1649 retval = rt2500usb_validate_eeprom(rt2x00dev);
1653 retval = rt2500usb_init_eeprom(rt2x00dev);
1658 * Initialize hw specifications.
1660 rt2500usb_probe_hw_mode(rt2x00dev);
1663 * This device requires the atim queue
1665 __set_bit(DRIVER_REQUIRE_ATIM_QUEUE, &rt2x00dev->flags);
1666 __set_bit(DRIVER_REQUIRE_BEACON_GUARD, &rt2x00dev->flags);
1667 __set_bit(DRIVER_REQUIRE_SCHEDULED, &rt2x00dev->flags);
1670 * Set the rssi offset.
1672 rt2x00dev->rssi_offset = DEFAULT_RSSI_OFFSET;
1678 * IEEE80211 stack callback functions.
1680 static int rt2500usb_beacon_update(struct ieee80211_hw *hw,
1681 struct sk_buff *skb,
1682 struct ieee80211_tx_control *control)
1684 struct rt2x00_dev *rt2x00dev = hw->priv;
1685 struct usb_device *usb_dev = rt2x00dev_usb_dev(rt2x00dev);
1686 struct rt2x00_intf *intf = vif_to_intf(control->vif);
1687 struct queue_entry_priv_usb_bcn *priv_bcn;
1688 struct skb_frame_desc *skbdesc;
1689 int pipe = usb_sndbulkpipe(usb_dev, 1);
1693 if (unlikely(!intf->beacon))
1696 priv_bcn = intf->beacon->priv_data;
1699 * Add the descriptor in front of the skb.
1701 skb_push(skb, intf->beacon->queue->desc_size);
1702 memset(skb->data, 0, intf->beacon->queue->desc_size);
1705 * Fill in skb descriptor
1707 skbdesc = get_skb_frame_desc(skb);
1708 memset(skbdesc, 0, sizeof(*skbdesc));
1709 skbdesc->flags |= FRAME_DESC_DRIVER_GENERATED;
1710 skbdesc->data = skb->data + intf->beacon->queue->desc_size;
1711 skbdesc->data_len = skb->len - intf->beacon->queue->desc_size;
1712 skbdesc->desc = skb->data;
1713 skbdesc->desc_len = intf->beacon->queue->desc_size;
1714 skbdesc->entry = intf->beacon;
1717 * Disable beaconing while we are reloading the beacon data,
1718 * otherwise we might be sending out invalid data.
1720 rt2500usb_register_read(rt2x00dev, TXRX_CSR19, ®);
1721 rt2x00_set_field16(®, TXRX_CSR19_TSF_COUNT, 0);
1722 rt2x00_set_field16(®, TXRX_CSR19_TBCN, 0);
1723 rt2x00_set_field16(®, TXRX_CSR19_BEACON_GEN, 0);
1724 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1727 * mac80211 doesn't provide the control->queue variable
1728 * for beacons. Set our own queue identification so
1729 * it can be used during descriptor initialization.
1731 control->queue = RT2X00_BCN_QUEUE_BEACON;
1732 rt2x00lib_write_tx_desc(rt2x00dev, skb, control);
1735 * USB devices cannot blindly pass the skb->len as the
1736 * length of the data to usb_fill_bulk_urb. Pass the skb
1737 * to the driver to determine what the length should be.
1739 length = rt2500usb_get_tx_data_len(rt2x00dev, skb);
1741 usb_fill_bulk_urb(priv_bcn->urb, usb_dev, pipe,
1742 skb->data, length, rt2500usb_beacondone,
1746 * Second we need to create the guardian byte.
1747 * We only need a single byte, so lets recycle
1748 * the 'flags' field we are not using for beacons.
1750 priv_bcn->guardian_data = 0;
1751 usb_fill_bulk_urb(priv_bcn->guardian_urb, usb_dev, pipe,
1752 &priv_bcn->guardian_data, 1, rt2500usb_beacondone,
1756 * Send out the guardian byte.
1758 usb_submit_urb(priv_bcn->guardian_urb, GFP_ATOMIC);
1761 * Enable beacon generation.
1763 rt2500usb_kick_tx_queue(rt2x00dev, control->queue);
1768 static const struct ieee80211_ops rt2500usb_mac80211_ops = {
1770 .start = rt2x00mac_start,
1771 .stop = rt2x00mac_stop,
1772 .add_interface = rt2x00mac_add_interface,
1773 .remove_interface = rt2x00mac_remove_interface,
1774 .config = rt2x00mac_config,
1775 .config_interface = rt2x00mac_config_interface,
1776 .configure_filter = rt2x00mac_configure_filter,
1777 .get_stats = rt2x00mac_get_stats,
1778 .bss_info_changed = rt2x00mac_bss_info_changed,
1779 .conf_tx = rt2x00mac_conf_tx,
1780 .get_tx_stats = rt2x00mac_get_tx_stats,
1781 .beacon_update = rt2500usb_beacon_update,
1784 static const struct rt2x00lib_ops rt2500usb_rt2x00_ops = {
1785 .probe_hw = rt2500usb_probe_hw,
1786 .initialize = rt2x00usb_initialize,
1787 .uninitialize = rt2x00usb_uninitialize,
1788 .init_rxentry = rt2x00usb_init_rxentry,
1789 .init_txentry = rt2x00usb_init_txentry,
1790 .set_device_state = rt2500usb_set_device_state,
1791 .link_stats = rt2500usb_link_stats,
1792 .reset_tuner = rt2500usb_reset_tuner,
1793 .link_tuner = rt2500usb_link_tuner,
1794 .led_brightness = rt2500usb_led_brightness,
1795 .write_tx_desc = rt2500usb_write_tx_desc,
1796 .write_tx_data = rt2x00usb_write_tx_data,
1797 .get_tx_data_len = rt2500usb_get_tx_data_len,
1798 .kick_tx_queue = rt2500usb_kick_tx_queue,
1799 .fill_rxdone = rt2500usb_fill_rxdone,
1800 .config_filter = rt2500usb_config_filter,
1801 .config_intf = rt2500usb_config_intf,
1802 .config_erp = rt2500usb_config_erp,
1803 .config = rt2500usb_config,
1806 static const struct data_queue_desc rt2500usb_queue_rx = {
1807 .entry_num = RX_ENTRIES,
1808 .data_size = DATA_FRAME_SIZE,
1809 .desc_size = RXD_DESC_SIZE,
1810 .priv_size = sizeof(struct queue_entry_priv_usb_rx),
1813 static const struct data_queue_desc rt2500usb_queue_tx = {
1814 .entry_num = TX_ENTRIES,
1815 .data_size = DATA_FRAME_SIZE,
1816 .desc_size = TXD_DESC_SIZE,
1817 .priv_size = sizeof(struct queue_entry_priv_usb_tx),
1820 static const struct data_queue_desc rt2500usb_queue_bcn = {
1821 .entry_num = BEACON_ENTRIES,
1822 .data_size = MGMT_FRAME_SIZE,
1823 .desc_size = TXD_DESC_SIZE,
1824 .priv_size = sizeof(struct queue_entry_priv_usb_bcn),
1827 static const struct data_queue_desc rt2500usb_queue_atim = {
1828 .entry_num = ATIM_ENTRIES,
1829 .data_size = DATA_FRAME_SIZE,
1830 .desc_size = TXD_DESC_SIZE,
1831 .priv_size = sizeof(struct queue_entry_priv_usb_tx),
1834 static const struct rt2x00_ops rt2500usb_ops = {
1835 .name = KBUILD_MODNAME,
1838 .eeprom_size = EEPROM_SIZE,
1840 .rx = &rt2500usb_queue_rx,
1841 .tx = &rt2500usb_queue_tx,
1842 .bcn = &rt2500usb_queue_bcn,
1843 .atim = &rt2500usb_queue_atim,
1844 .lib = &rt2500usb_rt2x00_ops,
1845 .hw = &rt2500usb_mac80211_ops,
1846 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
1847 .debugfs = &rt2500usb_rt2x00debug,
1848 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
1852 * rt2500usb module information.
1854 static struct usb_device_id rt2500usb_device_table[] = {
1856 { USB_DEVICE(0x0b05, 0x1706), USB_DEVICE_DATA(&rt2500usb_ops) },
1857 { USB_DEVICE(0x0b05, 0x1707), USB_DEVICE_DATA(&rt2500usb_ops) },
1859 { USB_DEVICE(0x050d, 0x7050), USB_DEVICE_DATA(&rt2500usb_ops) },
1860 { USB_DEVICE(0x050d, 0x7051), USB_DEVICE_DATA(&rt2500usb_ops) },
1861 { USB_DEVICE(0x050d, 0x705a), USB_DEVICE_DATA(&rt2500usb_ops) },
1863 { USB_DEVICE(0x13b1, 0x000d), USB_DEVICE_DATA(&rt2500usb_ops) },
1864 { USB_DEVICE(0x13b1, 0x0011), USB_DEVICE_DATA(&rt2500usb_ops) },
1865 { USB_DEVICE(0x13b1, 0x001a), USB_DEVICE_DATA(&rt2500usb_ops) },
1867 { USB_DEVICE(0x14b2, 0x3c02), USB_DEVICE_DATA(&rt2500usb_ops) },
1869 { USB_DEVICE(0x2001, 0x3c00), USB_DEVICE_DATA(&rt2500usb_ops) },
1871 { USB_DEVICE(0x1044, 0x8001), USB_DEVICE_DATA(&rt2500usb_ops) },
1872 { USB_DEVICE(0x1044, 0x8007), USB_DEVICE_DATA(&rt2500usb_ops) },
1874 { USB_DEVICE(0x06f8, 0xe000), USB_DEVICE_DATA(&rt2500usb_ops) },
1876 { USB_DEVICE(0x0411, 0x005e), USB_DEVICE_DATA(&rt2500usb_ops) },
1877 { USB_DEVICE(0x0411, 0x0066), USB_DEVICE_DATA(&rt2500usb_ops) },
1878 { USB_DEVICE(0x0411, 0x0067), USB_DEVICE_DATA(&rt2500usb_ops) },
1879 { USB_DEVICE(0x0411, 0x008b), USB_DEVICE_DATA(&rt2500usb_ops) },
1880 { USB_DEVICE(0x0411, 0x0097), USB_DEVICE_DATA(&rt2500usb_ops) },
1882 { USB_DEVICE(0x0db0, 0x6861), USB_DEVICE_DATA(&rt2500usb_ops) },
1883 { USB_DEVICE(0x0db0, 0x6865), USB_DEVICE_DATA(&rt2500usb_ops) },
1884 { USB_DEVICE(0x0db0, 0x6869), USB_DEVICE_DATA(&rt2500usb_ops) },
1886 { USB_DEVICE(0x148f, 0x1706), USB_DEVICE_DATA(&rt2500usb_ops) },
1887 { USB_DEVICE(0x148f, 0x2570), USB_DEVICE_DATA(&rt2500usb_ops) },
1888 { USB_DEVICE(0x148f, 0x2573), USB_DEVICE_DATA(&rt2500usb_ops) },
1889 { USB_DEVICE(0x148f, 0x9020), USB_DEVICE_DATA(&rt2500usb_ops) },
1891 { USB_DEVICE(0x0681, 0x3c06), USB_DEVICE_DATA(&rt2500usb_ops) },
1893 { USB_DEVICE(0x0707, 0xee13), USB_DEVICE_DATA(&rt2500usb_ops) },
1895 { USB_DEVICE(0x114b, 0x0110), USB_DEVICE_DATA(&rt2500usb_ops) },
1897 { USB_DEVICE(0x0eb0, 0x9020), USB_DEVICE_DATA(&rt2500usb_ops) },
1899 { USB_DEVICE(0x5a57, 0x0260), USB_DEVICE_DATA(&rt2500usb_ops) },
1903 MODULE_AUTHOR(DRV_PROJECT);
1904 MODULE_VERSION(DRV_VERSION);
1905 MODULE_DESCRIPTION("Ralink RT2500 USB Wireless LAN driver.");
1906 MODULE_SUPPORTED_DEVICE("Ralink RT2570 USB chipset based cards");
1907 MODULE_DEVICE_TABLE(usb, rt2500usb_device_table);
1908 MODULE_LICENSE("GPL");
1910 static struct usb_driver rt2500usb_driver = {
1911 .name = KBUILD_MODNAME,
1912 .id_table = rt2500usb_device_table,
1913 .probe = rt2x00usb_probe,
1914 .disconnect = rt2x00usb_disconnect,
1915 .suspend = rt2x00usb_suspend,
1916 .resume = rt2x00usb_resume,
1919 static int __init rt2500usb_init(void)
1921 return usb_register(&rt2500usb_driver);
1924 static void __exit rt2500usb_exit(void)
1926 usb_deregister(&rt2500usb_driver);
1929 module_init(rt2500usb_init);
1930 module_exit(rt2500usb_exit);