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_intf(struct rt2x00_dev *rt2x00dev,
320 struct rt2x00_intf *intf,
321 struct rt2x00intf_conf *conf,
322 const unsigned int flags)
324 unsigned int bcn_preload;
327 if (flags & CONFIG_UPDATE_TYPE) {
329 * Enable beacon config
331 bcn_preload = PREAMBLE + get_duration(IEEE80211_HEADER, 20);
332 rt2500usb_register_read(rt2x00dev, TXRX_CSR20, ®);
333 rt2x00_set_field16(®, TXRX_CSR20_OFFSET, bcn_preload >> 6);
334 rt2x00_set_field16(®, TXRX_CSR20_BCN_EXPECT_WINDOW,
335 2 * (conf->type != IEEE80211_IF_TYPE_STA));
336 rt2500usb_register_write(rt2x00dev, TXRX_CSR20, reg);
339 * Enable synchronisation.
341 rt2500usb_register_read(rt2x00dev, TXRX_CSR18, ®);
342 rt2x00_set_field16(®, TXRX_CSR18_OFFSET, 0);
343 rt2500usb_register_write(rt2x00dev, TXRX_CSR18, reg);
345 rt2500usb_register_read(rt2x00dev, TXRX_CSR19, ®);
346 rt2x00_set_field16(®, TXRX_CSR19_TSF_SYNC, conf->sync);
347 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
350 if (flags & CONFIG_UPDATE_MAC)
351 rt2500usb_register_multiwrite(rt2x00dev, MAC_CSR2, conf->mac,
352 (3 * sizeof(__le16)));
354 if (flags & CONFIG_UPDATE_BSSID)
355 rt2500usb_register_multiwrite(rt2x00dev, MAC_CSR5, conf->bssid,
356 (3 * sizeof(__le16)));
359 static int rt2500usb_config_preamble(struct rt2x00_dev *rt2x00dev,
360 const int short_preamble,
361 const int ack_timeout,
362 const int ack_consume_time)
367 * When in atomic context, we should let rt2x00lib
368 * try this configuration again later.
373 rt2500usb_register_read(rt2x00dev, TXRX_CSR1, ®);
374 rt2x00_set_field16(®, TXRX_CSR1_ACK_TIMEOUT, ack_timeout);
375 rt2500usb_register_write(rt2x00dev, TXRX_CSR1, reg);
377 rt2500usb_register_read(rt2x00dev, TXRX_CSR10, ®);
378 rt2x00_set_field16(®, TXRX_CSR10_AUTORESPOND_PREAMBLE,
380 rt2500usb_register_write(rt2x00dev, TXRX_CSR10, reg);
385 static void rt2500usb_config_phymode(struct rt2x00_dev *rt2x00dev,
386 const int basic_rate_mask)
388 rt2500usb_register_write(rt2x00dev, TXRX_CSR11, basic_rate_mask);
391 static void rt2500usb_config_channel(struct rt2x00_dev *rt2x00dev,
392 struct rf_channel *rf, const int txpower)
397 rt2x00_set_field32(&rf->rf3, RF3_TXPOWER, TXPOWER_TO_DEV(txpower));
400 * For RT2525E we should first set the channel to half band higher.
402 if (rt2x00_rf(&rt2x00dev->chip, RF2525E)) {
403 static const u32 vals[] = {
404 0x000008aa, 0x000008ae, 0x000008ae, 0x000008b2,
405 0x000008b2, 0x000008b6, 0x000008b6, 0x000008ba,
406 0x000008ba, 0x000008be, 0x000008b7, 0x00000902,
407 0x00000902, 0x00000906
410 rt2500usb_rf_write(rt2x00dev, 2, vals[rf->channel - 1]);
412 rt2500usb_rf_write(rt2x00dev, 4, rf->rf4);
415 rt2500usb_rf_write(rt2x00dev, 1, rf->rf1);
416 rt2500usb_rf_write(rt2x00dev, 2, rf->rf2);
417 rt2500usb_rf_write(rt2x00dev, 3, rf->rf3);
419 rt2500usb_rf_write(rt2x00dev, 4, rf->rf4);
422 static void rt2500usb_config_txpower(struct rt2x00_dev *rt2x00dev,
427 rt2x00_rf_read(rt2x00dev, 3, &rf3);
428 rt2x00_set_field32(&rf3, RF3_TXPOWER, TXPOWER_TO_DEV(txpower));
429 rt2500usb_rf_write(rt2x00dev, 3, rf3);
432 static void rt2500usb_config_antenna(struct rt2x00_dev *rt2x00dev,
433 struct antenna_setup *ant)
440 rt2500usb_bbp_read(rt2x00dev, 2, &r2);
441 rt2500usb_bbp_read(rt2x00dev, 14, &r14);
442 rt2500usb_register_read(rt2x00dev, PHY_CSR5, &csr5);
443 rt2500usb_register_read(rt2x00dev, PHY_CSR6, &csr6);
446 * Configure the TX antenna.
449 case ANTENNA_HW_DIVERSITY:
450 rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 1);
451 rt2x00_set_field16(&csr5, PHY_CSR5_CCK, 1);
452 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM, 1);
455 rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 0);
456 rt2x00_set_field16(&csr5, PHY_CSR5_CCK, 0);
457 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM, 0);
459 case ANTENNA_SW_DIVERSITY:
461 * NOTE: We should never come here because rt2x00lib is
462 * supposed to catch this and send us the correct antenna
463 * explicitely. However we are nog going to bug about this.
464 * Instead, just default to antenna B.
467 rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 2);
468 rt2x00_set_field16(&csr5, PHY_CSR5_CCK, 2);
469 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM, 2);
474 * Configure the RX antenna.
477 case ANTENNA_HW_DIVERSITY:
478 rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 1);
481 rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 0);
483 case ANTENNA_SW_DIVERSITY:
485 * NOTE: We should never come here because rt2x00lib is
486 * supposed to catch this and send us the correct antenna
487 * explicitely. However we are nog going to bug about this.
488 * Instead, just default to antenna B.
491 rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 2);
496 * RT2525E and RT5222 need to flip TX I/Q
498 if (rt2x00_rf(&rt2x00dev->chip, RF2525E) ||
499 rt2x00_rf(&rt2x00dev->chip, RF5222)) {
500 rt2x00_set_field8(&r2, BBP_R2_TX_IQ_FLIP, 1);
501 rt2x00_set_field16(&csr5, PHY_CSR5_CCK_FLIP, 1);
502 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM_FLIP, 1);
505 * RT2525E does not need RX I/Q Flip.
507 if (rt2x00_rf(&rt2x00dev->chip, RF2525E))
508 rt2x00_set_field8(&r14, BBP_R14_RX_IQ_FLIP, 0);
510 rt2x00_set_field16(&csr5, PHY_CSR5_CCK_FLIP, 0);
511 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM_FLIP, 0);
514 rt2500usb_bbp_write(rt2x00dev, 2, r2);
515 rt2500usb_bbp_write(rt2x00dev, 14, r14);
516 rt2500usb_register_write(rt2x00dev, PHY_CSR5, csr5);
517 rt2500usb_register_write(rt2x00dev, PHY_CSR6, csr6);
520 static void rt2500usb_config_duration(struct rt2x00_dev *rt2x00dev,
521 struct rt2x00lib_conf *libconf)
525 rt2500usb_register_write(rt2x00dev, MAC_CSR10, libconf->slot_time);
526 rt2500usb_register_write(rt2x00dev, MAC_CSR11, libconf->sifs);
527 rt2500usb_register_write(rt2x00dev, MAC_CSR12, libconf->eifs);
529 rt2500usb_register_read(rt2x00dev, TXRX_CSR18, ®);
530 rt2x00_set_field16(®, TXRX_CSR18_INTERVAL,
531 libconf->conf->beacon_int * 4);
532 rt2500usb_register_write(rt2x00dev, TXRX_CSR18, reg);
535 static void rt2500usb_config(struct rt2x00_dev *rt2x00dev,
536 struct rt2x00lib_conf *libconf,
537 const unsigned int flags)
539 if (flags & CONFIG_UPDATE_PHYMODE)
540 rt2500usb_config_phymode(rt2x00dev, libconf->basic_rates);
541 if (flags & CONFIG_UPDATE_CHANNEL)
542 rt2500usb_config_channel(rt2x00dev, &libconf->rf,
543 libconf->conf->power_level);
544 if ((flags & CONFIG_UPDATE_TXPOWER) && !(flags & CONFIG_UPDATE_CHANNEL))
545 rt2500usb_config_txpower(rt2x00dev,
546 libconf->conf->power_level);
547 if (flags & CONFIG_UPDATE_ANTENNA)
548 rt2500usb_config_antenna(rt2x00dev, &libconf->ant);
549 if (flags & (CONFIG_UPDATE_SLOT_TIME | CONFIG_UPDATE_BEACON_INT))
550 rt2500usb_config_duration(rt2x00dev, libconf);
556 static void rt2500usb_link_stats(struct rt2x00_dev *rt2x00dev,
557 struct link_qual *qual)
562 * Update FCS error count from register.
564 rt2500usb_register_read(rt2x00dev, STA_CSR0, ®);
565 qual->rx_failed = rt2x00_get_field16(reg, STA_CSR0_FCS_ERROR);
568 * Update False CCA count from register.
570 rt2500usb_register_read(rt2x00dev, STA_CSR3, ®);
571 qual->false_cca = rt2x00_get_field16(reg, STA_CSR3_FALSE_CCA_ERROR);
574 static void rt2500usb_reset_tuner(struct rt2x00_dev *rt2x00dev)
579 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R24, &eeprom);
580 value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_R24_LOW);
581 rt2500usb_bbp_write(rt2x00dev, 24, value);
583 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R25, &eeprom);
584 value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_R25_LOW);
585 rt2500usb_bbp_write(rt2x00dev, 25, value);
587 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R61, &eeprom);
588 value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_R61_LOW);
589 rt2500usb_bbp_write(rt2x00dev, 61, value);
591 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_VGC, &eeprom);
592 value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_VGCUPPER);
593 rt2500usb_bbp_write(rt2x00dev, 17, value);
595 rt2x00dev->link.vgc_level = value;
598 static void rt2500usb_link_tuner(struct rt2x00_dev *rt2x00dev)
600 int rssi = rt2x00_get_link_rssi(&rt2x00dev->link);
613 * Read current r17 value, as well as the sensitivity values
614 * for the r17 register.
616 rt2500usb_bbp_read(rt2x00dev, 17, &r17);
617 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R17, &r17_sens);
619 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_VGC, &vgc_bound);
620 up_bound = rt2x00_get_field16(vgc_bound, EEPROM_BBPTUNE_VGCUPPER);
621 low_bound = rt2x00_get_field16(vgc_bound, EEPROM_BBPTUNE_VGCLOWER);
624 * If we are not associated, we should go straight to the
625 * dynamic CCA tuning.
627 if (!rt2x00dev->intf_associated)
628 goto dynamic_cca_tune;
631 * Determine the BBP tuning threshold and correctly
632 * set BBP 24, 25 and 61.
634 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE, &bbp_thresh);
635 bbp_thresh = rt2x00_get_field16(bbp_thresh, EEPROM_BBPTUNE_THRESHOLD);
637 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R24, &r24);
638 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R25, &r25);
639 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R61, &r61);
641 if ((rssi + bbp_thresh) > 0) {
642 r24 = rt2x00_get_field16(r24, EEPROM_BBPTUNE_R24_HIGH);
643 r25 = rt2x00_get_field16(r25, EEPROM_BBPTUNE_R25_HIGH);
644 r61 = rt2x00_get_field16(r61, EEPROM_BBPTUNE_R61_HIGH);
646 r24 = rt2x00_get_field16(r24, EEPROM_BBPTUNE_R24_LOW);
647 r25 = rt2x00_get_field16(r25, EEPROM_BBPTUNE_R25_LOW);
648 r61 = rt2x00_get_field16(r61, EEPROM_BBPTUNE_R61_LOW);
651 rt2500usb_bbp_write(rt2x00dev, 24, r24);
652 rt2500usb_bbp_write(rt2x00dev, 25, r25);
653 rt2500usb_bbp_write(rt2x00dev, 61, r61);
656 * A too low RSSI will cause too much false CCA which will
657 * then corrupt the R17 tuning. To remidy this the tuning should
658 * be stopped (While making sure the R17 value will not exceed limits)
662 rt2500usb_bbp_write(rt2x00dev, 17, 0x60);
667 * Special big-R17 for short distance
670 sens = rt2x00_get_field16(r17_sens, EEPROM_BBPTUNE_R17_LOW);
672 rt2500usb_bbp_write(rt2x00dev, 17, sens);
677 * Special mid-R17 for middle distance
680 sens = rt2x00_get_field16(r17_sens, EEPROM_BBPTUNE_R17_HIGH);
682 rt2500usb_bbp_write(rt2x00dev, 17, sens);
687 * Leave short or middle distance condition, restore r17
688 * to the dynamic tuning range.
692 up_bound -= (-77 - rssi);
694 if (up_bound < low_bound)
695 up_bound = low_bound;
697 if (r17 > up_bound) {
698 rt2500usb_bbp_write(rt2x00dev, 17, up_bound);
699 rt2x00dev->link.vgc_level = up_bound;
706 * R17 is inside the dynamic tuning range,
707 * start tuning the link based on the false cca counter.
709 if (rt2x00dev->link.qual.false_cca > 512 && r17 < up_bound) {
710 rt2500usb_bbp_write(rt2x00dev, 17, ++r17);
711 rt2x00dev->link.vgc_level = r17;
712 } else if (rt2x00dev->link.qual.false_cca < 100 && r17 > low_bound) {
713 rt2500usb_bbp_write(rt2x00dev, 17, --r17);
714 rt2x00dev->link.vgc_level = r17;
719 * Initialization functions.
721 static int rt2500usb_init_registers(struct rt2x00_dev *rt2x00dev)
725 rt2x00usb_vendor_request_sw(rt2x00dev, USB_DEVICE_MODE, 0x0001,
726 USB_MODE_TEST, REGISTER_TIMEOUT);
727 rt2x00usb_vendor_request_sw(rt2x00dev, USB_SINGLE_WRITE, 0x0308,
728 0x00f0, REGISTER_TIMEOUT);
730 rt2500usb_register_read(rt2x00dev, TXRX_CSR2, ®);
731 rt2x00_set_field16(®, TXRX_CSR2_DISABLE_RX, 1);
732 rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
734 rt2500usb_register_write(rt2x00dev, MAC_CSR13, 0x1111);
735 rt2500usb_register_write(rt2x00dev, MAC_CSR14, 0x1e11);
737 rt2500usb_register_read(rt2x00dev, MAC_CSR1, ®);
738 rt2x00_set_field16(®, MAC_CSR1_SOFT_RESET, 1);
739 rt2x00_set_field16(®, MAC_CSR1_BBP_RESET, 1);
740 rt2x00_set_field16(®, MAC_CSR1_HOST_READY, 0);
741 rt2500usb_register_write(rt2x00dev, MAC_CSR1, reg);
743 rt2500usb_register_read(rt2x00dev, MAC_CSR1, ®);
744 rt2x00_set_field16(®, MAC_CSR1_SOFT_RESET, 0);
745 rt2x00_set_field16(®, MAC_CSR1_BBP_RESET, 0);
746 rt2x00_set_field16(®, MAC_CSR1_HOST_READY, 0);
747 rt2500usb_register_write(rt2x00dev, MAC_CSR1, reg);
749 rt2500usb_register_read(rt2x00dev, MAC_CSR21, ®);
750 rt2x00_set_field16(®, MAC_CSR21_ON_PERIOD, 70);
751 rt2x00_set_field16(®, MAC_CSR21_OFF_PERIOD, 30);
752 rt2500usb_register_write(rt2x00dev, MAC_CSR21, reg);
754 rt2500usb_register_read(rt2x00dev, TXRX_CSR5, ®);
755 rt2x00_set_field16(®, TXRX_CSR5_BBP_ID0, 13);
756 rt2x00_set_field16(®, TXRX_CSR5_BBP_ID0_VALID, 1);
757 rt2x00_set_field16(®, TXRX_CSR5_BBP_ID1, 12);
758 rt2x00_set_field16(®, TXRX_CSR5_BBP_ID1_VALID, 1);
759 rt2500usb_register_write(rt2x00dev, TXRX_CSR5, reg);
761 rt2500usb_register_read(rt2x00dev, TXRX_CSR6, ®);
762 rt2x00_set_field16(®, TXRX_CSR6_BBP_ID0, 10);
763 rt2x00_set_field16(®, TXRX_CSR6_BBP_ID0_VALID, 1);
764 rt2x00_set_field16(®, TXRX_CSR6_BBP_ID1, 11);
765 rt2x00_set_field16(®, TXRX_CSR6_BBP_ID1_VALID, 1);
766 rt2500usb_register_write(rt2x00dev, TXRX_CSR6, reg);
768 rt2500usb_register_read(rt2x00dev, TXRX_CSR7, ®);
769 rt2x00_set_field16(®, TXRX_CSR7_BBP_ID0, 7);
770 rt2x00_set_field16(®, TXRX_CSR7_BBP_ID0_VALID, 1);
771 rt2x00_set_field16(®, TXRX_CSR7_BBP_ID1, 6);
772 rt2x00_set_field16(®, TXRX_CSR7_BBP_ID1_VALID, 1);
773 rt2500usb_register_write(rt2x00dev, TXRX_CSR7, reg);
775 rt2500usb_register_read(rt2x00dev, TXRX_CSR8, ®);
776 rt2x00_set_field16(®, TXRX_CSR8_BBP_ID0, 5);
777 rt2x00_set_field16(®, TXRX_CSR8_BBP_ID0_VALID, 1);
778 rt2x00_set_field16(®, TXRX_CSR8_BBP_ID1, 0);
779 rt2x00_set_field16(®, TXRX_CSR8_BBP_ID1_VALID, 0);
780 rt2500usb_register_write(rt2x00dev, TXRX_CSR8, reg);
782 rt2500usb_register_write(rt2x00dev, TXRX_CSR21, 0xe78f);
783 rt2500usb_register_write(rt2x00dev, MAC_CSR9, 0xff1d);
785 if (rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_AWAKE))
788 rt2500usb_register_read(rt2x00dev, MAC_CSR1, ®);
789 rt2x00_set_field16(®, MAC_CSR1_SOFT_RESET, 0);
790 rt2x00_set_field16(®, MAC_CSR1_BBP_RESET, 0);
791 rt2x00_set_field16(®, MAC_CSR1_HOST_READY, 1);
792 rt2500usb_register_write(rt2x00dev, MAC_CSR1, reg);
794 if (rt2x00_rev(&rt2x00dev->chip) >= RT2570_VERSION_C) {
795 rt2500usb_register_read(rt2x00dev, PHY_CSR2, ®);
796 rt2x00_set_field16(®, PHY_CSR2_LNA, 0);
799 rt2x00_set_field16(®, PHY_CSR2_LNA, 1);
800 rt2x00_set_field16(®, PHY_CSR2_LNA_MODE, 3);
802 rt2500usb_register_write(rt2x00dev, PHY_CSR2, reg);
804 rt2500usb_register_write(rt2x00dev, MAC_CSR11, 0x0002);
805 rt2500usb_register_write(rt2x00dev, MAC_CSR22, 0x0053);
806 rt2500usb_register_write(rt2x00dev, MAC_CSR15, 0x01ee);
807 rt2500usb_register_write(rt2x00dev, MAC_CSR16, 0x0000);
809 rt2500usb_register_read(rt2x00dev, MAC_CSR8, ®);
810 rt2x00_set_field16(®, MAC_CSR8_MAX_FRAME_UNIT,
811 rt2x00dev->rx->data_size);
812 rt2500usb_register_write(rt2x00dev, MAC_CSR8, reg);
814 rt2500usb_register_read(rt2x00dev, TXRX_CSR0, ®);
815 rt2x00_set_field16(®, TXRX_CSR0_IV_OFFSET, IEEE80211_HEADER);
816 rt2x00_set_field16(®, TXRX_CSR0_KEY_ID, 0xff);
817 rt2500usb_register_write(rt2x00dev, TXRX_CSR0, reg);
819 rt2500usb_register_read(rt2x00dev, MAC_CSR18, ®);
820 rt2x00_set_field16(®, MAC_CSR18_DELAY_AFTER_BEACON, 90);
821 rt2500usb_register_write(rt2x00dev, MAC_CSR18, reg);
823 rt2500usb_register_read(rt2x00dev, PHY_CSR4, ®);
824 rt2x00_set_field16(®, PHY_CSR4_LOW_RF_LE, 1);
825 rt2500usb_register_write(rt2x00dev, PHY_CSR4, reg);
827 rt2500usb_register_read(rt2x00dev, TXRX_CSR1, ®);
828 rt2x00_set_field16(®, TXRX_CSR1_AUTO_SEQUENCE, 1);
829 rt2500usb_register_write(rt2x00dev, TXRX_CSR1, reg);
834 static int rt2500usb_init_bbp(struct rt2x00_dev *rt2x00dev)
841 for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
842 rt2500usb_bbp_read(rt2x00dev, 0, &value);
843 if ((value != 0xff) && (value != 0x00))
844 goto continue_csr_init;
845 NOTICE(rt2x00dev, "Waiting for BBP register.\n");
846 udelay(REGISTER_BUSY_DELAY);
849 ERROR(rt2x00dev, "BBP register access failed, aborting.\n");
853 rt2500usb_bbp_write(rt2x00dev, 3, 0x02);
854 rt2500usb_bbp_write(rt2x00dev, 4, 0x19);
855 rt2500usb_bbp_write(rt2x00dev, 14, 0x1c);
856 rt2500usb_bbp_write(rt2x00dev, 15, 0x30);
857 rt2500usb_bbp_write(rt2x00dev, 16, 0xac);
858 rt2500usb_bbp_write(rt2x00dev, 18, 0x18);
859 rt2500usb_bbp_write(rt2x00dev, 19, 0xff);
860 rt2500usb_bbp_write(rt2x00dev, 20, 0x1e);
861 rt2500usb_bbp_write(rt2x00dev, 21, 0x08);
862 rt2500usb_bbp_write(rt2x00dev, 22, 0x08);
863 rt2500usb_bbp_write(rt2x00dev, 23, 0x08);
864 rt2500usb_bbp_write(rt2x00dev, 24, 0x80);
865 rt2500usb_bbp_write(rt2x00dev, 25, 0x50);
866 rt2500usb_bbp_write(rt2x00dev, 26, 0x08);
867 rt2500usb_bbp_write(rt2x00dev, 27, 0x23);
868 rt2500usb_bbp_write(rt2x00dev, 30, 0x10);
869 rt2500usb_bbp_write(rt2x00dev, 31, 0x2b);
870 rt2500usb_bbp_write(rt2x00dev, 32, 0xb9);
871 rt2500usb_bbp_write(rt2x00dev, 34, 0x12);
872 rt2500usb_bbp_write(rt2x00dev, 35, 0x50);
873 rt2500usb_bbp_write(rt2x00dev, 39, 0xc4);
874 rt2500usb_bbp_write(rt2x00dev, 40, 0x02);
875 rt2500usb_bbp_write(rt2x00dev, 41, 0x60);
876 rt2500usb_bbp_write(rt2x00dev, 53, 0x10);
877 rt2500usb_bbp_write(rt2x00dev, 54, 0x18);
878 rt2500usb_bbp_write(rt2x00dev, 56, 0x08);
879 rt2500usb_bbp_write(rt2x00dev, 57, 0x10);
880 rt2500usb_bbp_write(rt2x00dev, 58, 0x08);
881 rt2500usb_bbp_write(rt2x00dev, 61, 0x60);
882 rt2500usb_bbp_write(rt2x00dev, 62, 0x10);
883 rt2500usb_bbp_write(rt2x00dev, 75, 0xff);
885 for (i = 0; i < EEPROM_BBP_SIZE; i++) {
886 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBP_START + i, &eeprom);
888 if (eeprom != 0xffff && eeprom != 0x0000) {
889 reg_id = rt2x00_get_field16(eeprom, EEPROM_BBP_REG_ID);
890 value = rt2x00_get_field16(eeprom, EEPROM_BBP_VALUE);
891 rt2500usb_bbp_write(rt2x00dev, reg_id, value);
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");
926 static void rt2500usb_disable_radio(struct rt2x00_dev *rt2x00dev)
928 rt2500usb_register_write(rt2x00dev, MAC_CSR13, 0x2121);
929 rt2500usb_register_write(rt2x00dev, MAC_CSR14, 0x2121);
932 * Disable synchronisation.
934 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, 0);
936 rt2x00usb_disable_radio(rt2x00dev);
939 static int rt2500usb_set_state(struct rt2x00_dev *rt2x00dev,
940 enum dev_state state)
949 put_to_sleep = (state != STATE_AWAKE);
952 rt2x00_set_field16(®, MAC_CSR17_BBP_DESIRE_STATE, state);
953 rt2x00_set_field16(®, MAC_CSR17_RF_DESIRE_STATE, state);
954 rt2x00_set_field16(®, MAC_CSR17_PUT_TO_SLEEP, put_to_sleep);
955 rt2500usb_register_write(rt2x00dev, MAC_CSR17, reg);
956 rt2x00_set_field16(®, MAC_CSR17_SET_STATE, 1);
957 rt2500usb_register_write(rt2x00dev, MAC_CSR17, reg);
960 * Device is not guaranteed to be in the requested state yet.
961 * We must wait until the register indicates that the
962 * device has entered the correct state.
964 for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
965 rt2500usb_register_read(rt2x00dev, MAC_CSR17, ®2);
966 bbp_state = rt2x00_get_field16(reg2, MAC_CSR17_BBP_CURR_STATE);
967 rf_state = rt2x00_get_field16(reg2, MAC_CSR17_RF_CURR_STATE);
968 if (bbp_state == state && rf_state == state)
970 rt2500usb_register_write(rt2x00dev, MAC_CSR17, reg);
974 NOTICE(rt2x00dev, "Device failed to enter state %d, "
975 "current device state: bbp %d and rf %d.\n",
976 state, bbp_state, rf_state);
981 static int rt2500usb_set_device_state(struct rt2x00_dev *rt2x00dev,
982 enum dev_state state)
988 retval = rt2500usb_enable_radio(rt2x00dev);
990 case STATE_RADIO_OFF:
991 rt2500usb_disable_radio(rt2x00dev);
993 case STATE_RADIO_RX_ON:
994 case STATE_RADIO_RX_ON_LINK:
995 rt2500usb_toggle_rx(rt2x00dev, STATE_RADIO_RX_ON);
997 case STATE_RADIO_RX_OFF:
998 case STATE_RADIO_RX_OFF_LINK:
999 rt2500usb_toggle_rx(rt2x00dev, STATE_RADIO_RX_OFF);
1001 case STATE_DEEP_SLEEP:
1005 retval = rt2500usb_set_state(rt2x00dev, state);
1016 * TX descriptor initialization
1018 static void rt2500usb_write_tx_desc(struct rt2x00_dev *rt2x00dev,
1019 struct sk_buff *skb,
1020 struct txentry_desc *txdesc,
1021 struct ieee80211_tx_control *control)
1023 struct skb_frame_desc *skbdesc = get_skb_frame_desc(skb);
1024 __le32 *txd = skbdesc->desc;
1028 * Start writing the descriptor words.
1030 rt2x00_desc_read(txd, 1, &word);
1031 rt2x00_set_field32(&word, TXD_W1_IV_OFFSET, IEEE80211_HEADER);
1032 rt2x00_set_field32(&word, TXD_W1_AIFS, txdesc->aifs);
1033 rt2x00_set_field32(&word, TXD_W1_CWMIN, txdesc->cw_min);
1034 rt2x00_set_field32(&word, TXD_W1_CWMAX, txdesc->cw_max);
1035 rt2x00_desc_write(txd, 1, word);
1037 rt2x00_desc_read(txd, 2, &word);
1038 rt2x00_set_field32(&word, TXD_W2_PLCP_SIGNAL, txdesc->signal);
1039 rt2x00_set_field32(&word, TXD_W2_PLCP_SERVICE, txdesc->service);
1040 rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_LOW, txdesc->length_low);
1041 rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_HIGH, txdesc->length_high);
1042 rt2x00_desc_write(txd, 2, word);
1044 rt2x00_desc_read(txd, 0, &word);
1045 rt2x00_set_field32(&word, TXD_W0_RETRY_LIMIT, control->retry_limit);
1046 rt2x00_set_field32(&word, TXD_W0_MORE_FRAG,
1047 test_bit(ENTRY_TXD_MORE_FRAG, &txdesc->flags));
1048 rt2x00_set_field32(&word, TXD_W0_ACK,
1049 test_bit(ENTRY_TXD_ACK, &txdesc->flags));
1050 rt2x00_set_field32(&word, TXD_W0_TIMESTAMP,
1051 test_bit(ENTRY_TXD_REQ_TIMESTAMP, &txdesc->flags));
1052 rt2x00_set_field32(&word, TXD_W0_OFDM,
1053 test_bit(ENTRY_TXD_OFDM_RATE, &txdesc->flags));
1054 rt2x00_set_field32(&word, TXD_W0_NEW_SEQ,
1055 !!(control->flags & IEEE80211_TXCTL_FIRST_FRAGMENT));
1056 rt2x00_set_field32(&word, TXD_W0_IFS, txdesc->ifs);
1057 rt2x00_set_field32(&word, TXD_W0_DATABYTE_COUNT, skbdesc->data_len);
1058 rt2x00_set_field32(&word, TXD_W0_CIPHER, CIPHER_NONE);
1059 rt2x00_desc_write(txd, 0, word);
1062 static int rt2500usb_get_tx_data_len(struct rt2x00_dev *rt2x00dev,
1063 struct sk_buff *skb)
1068 * The length _must_ be a multiple of 2,
1069 * but it must _not_ be a multiple of the USB packet size.
1071 length = roundup(skb->len, 2);
1072 length += (2 * !(length % rt2x00dev->usb_maxpacket));
1078 * TX data initialization
1080 static void rt2500usb_kick_tx_queue(struct rt2x00_dev *rt2x00dev,
1081 const unsigned int queue)
1085 if (queue != RT2X00_BCN_QUEUE_BEACON)
1088 rt2500usb_register_read(rt2x00dev, TXRX_CSR19, ®);
1089 if (!rt2x00_get_field16(reg, TXRX_CSR19_BEACON_GEN)) {
1090 rt2x00_set_field16(®, TXRX_CSR19_TSF_COUNT, 1);
1091 rt2x00_set_field16(®, TXRX_CSR19_TBCN, 1);
1092 rt2x00_set_field16(®, TXRX_CSR19_BEACON_GEN, 1);
1094 * Beacon generation will fail initially.
1095 * To prevent this we need to register the TXRX_CSR19
1096 * register several times.
1098 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1099 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, 0);
1100 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1101 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, 0);
1102 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1107 * RX control handlers
1109 static void rt2500usb_fill_rxdone(struct queue_entry *entry,
1110 struct rxdone_entry_desc *rxdesc)
1112 struct queue_entry_priv_usb_rx *priv_rx = entry->priv_data;
1113 struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
1115 (__le32 *)(entry->skb->data +
1116 (priv_rx->urb->actual_length - entry->queue->desc_size));
1117 unsigned int offset = entry->queue->desc_size + 2;
1122 * Copy descriptor to the available headroom inside the skbuffer.
1124 skb_push(entry->skb, offset);
1125 memcpy(entry->skb->data, rxd, entry->queue->desc_size);
1126 rxd = (__le32 *)entry->skb->data;
1129 * The descriptor is now aligned to 4 bytes and thus it is
1130 * now safe to read it on all architectures.
1132 rt2x00_desc_read(rxd, 0, &word0);
1133 rt2x00_desc_read(rxd, 1, &word1);
1136 if (rt2x00_get_field32(word0, RXD_W0_CRC_ERROR))
1137 rxdesc->flags |= RX_FLAG_FAILED_FCS_CRC;
1138 if (rt2x00_get_field32(word0, RXD_W0_PHYSICAL_ERROR))
1139 rxdesc->flags |= RX_FLAG_FAILED_PLCP_CRC;
1142 * Obtain the status about this packet.
1144 rxdesc->signal = rt2x00_get_field32(word1, RXD_W1_SIGNAL);
1145 rxdesc->rssi = rt2x00_get_field32(word1, RXD_W1_RSSI) -
1146 entry->queue->rt2x00dev->rssi_offset;
1147 rxdesc->ofdm = rt2x00_get_field32(word0, RXD_W0_OFDM);
1148 rxdesc->size = rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT);
1149 rxdesc->my_bss = !!rt2x00_get_field32(word0, RXD_W0_MY_BSS);
1152 * Adjust the skb memory window to the frame boundaries.
1154 skb_pull(entry->skb, offset);
1155 skb_trim(entry->skb, rxdesc->size);
1158 * Set descriptor and data pointer.
1160 skbdesc->data = entry->skb->data;
1161 skbdesc->data_len = rxdesc->size;
1162 skbdesc->desc = rxd;
1163 skbdesc->desc_len = entry->queue->desc_size;
1167 * Interrupt functions.
1169 static void rt2500usb_beacondone(struct urb *urb)
1171 struct queue_entry *entry = (struct queue_entry *)urb->context;
1172 struct queue_entry_priv_usb_bcn *priv_bcn = entry->priv_data;
1174 if (!test_bit(DEVICE_ENABLED_RADIO, &entry->queue->rt2x00dev->flags))
1178 * Check if this was the guardian beacon,
1179 * if that was the case we need to send the real beacon now.
1180 * Otherwise we should free the sk_buffer, the device
1181 * should be doing the rest of the work now.
1183 if (priv_bcn->guardian_urb == urb) {
1184 usb_submit_urb(priv_bcn->urb, GFP_ATOMIC);
1185 } else if (priv_bcn->urb == urb) {
1186 dev_kfree_skb(entry->skb);
1192 * Device probe functions.
1194 static int rt2500usb_validate_eeprom(struct rt2x00_dev *rt2x00dev)
1200 rt2x00usb_eeprom_read(rt2x00dev, rt2x00dev->eeprom, EEPROM_SIZE);
1203 * Start validation of the data that has been read.
1205 mac = rt2x00_eeprom_addr(rt2x00dev, EEPROM_MAC_ADDR_0);
1206 if (!is_valid_ether_addr(mac)) {
1207 DECLARE_MAC_BUF(macbuf);
1209 random_ether_addr(mac);
1210 EEPROM(rt2x00dev, "MAC: %s\n", print_mac(macbuf, mac));
1213 rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &word);
1214 if (word == 0xffff) {
1215 rt2x00_set_field16(&word, EEPROM_ANTENNA_NUM, 2);
1216 rt2x00_set_field16(&word, EEPROM_ANTENNA_TX_DEFAULT,
1217 ANTENNA_SW_DIVERSITY);
1218 rt2x00_set_field16(&word, EEPROM_ANTENNA_RX_DEFAULT,
1219 ANTENNA_SW_DIVERSITY);
1220 rt2x00_set_field16(&word, EEPROM_ANTENNA_LED_MODE,
1222 rt2x00_set_field16(&word, EEPROM_ANTENNA_DYN_TXAGC, 0);
1223 rt2x00_set_field16(&word, EEPROM_ANTENNA_HARDWARE_RADIO, 0);
1224 rt2x00_set_field16(&word, EEPROM_ANTENNA_RF_TYPE, RF2522);
1225 rt2x00_eeprom_write(rt2x00dev, EEPROM_ANTENNA, word);
1226 EEPROM(rt2x00dev, "Antenna: 0x%04x\n", word);
1229 rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &word);
1230 if (word == 0xffff) {
1231 rt2x00_set_field16(&word, EEPROM_NIC_CARDBUS_ACCEL, 0);
1232 rt2x00_set_field16(&word, EEPROM_NIC_DYN_BBP_TUNE, 0);
1233 rt2x00_set_field16(&word, EEPROM_NIC_CCK_TX_POWER, 0);
1234 rt2x00_eeprom_write(rt2x00dev, EEPROM_NIC, word);
1235 EEPROM(rt2x00dev, "NIC: 0x%04x\n", word);
1238 rt2x00_eeprom_read(rt2x00dev, EEPROM_CALIBRATE_OFFSET, &word);
1239 if (word == 0xffff) {
1240 rt2x00_set_field16(&word, EEPROM_CALIBRATE_OFFSET_RSSI,
1241 DEFAULT_RSSI_OFFSET);
1242 rt2x00_eeprom_write(rt2x00dev, EEPROM_CALIBRATE_OFFSET, word);
1243 EEPROM(rt2x00dev, "Calibrate offset: 0x%04x\n", word);
1246 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE, &word);
1247 if (word == 0xffff) {
1248 rt2x00_set_field16(&word, EEPROM_BBPTUNE_THRESHOLD, 45);
1249 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE, word);
1250 EEPROM(rt2x00dev, "BBPtune: 0x%04x\n", word);
1254 * Switch lower vgc bound to current BBP R17 value,
1255 * lower the value a bit for better quality.
1257 rt2500usb_bbp_read(rt2x00dev, 17, &bbp);
1260 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_VGC, &word);
1261 if (word == 0xffff) {
1262 rt2x00_set_field16(&word, EEPROM_BBPTUNE_VGCUPPER, 0x40);
1263 rt2x00_set_field16(&word, EEPROM_BBPTUNE_VGCLOWER, bbp);
1264 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_VGC, word);
1265 EEPROM(rt2x00dev, "BBPtune vgc: 0x%04x\n", word);
1268 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R17, &word);
1269 if (word == 0xffff) {
1270 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R17_LOW, 0x48);
1271 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R17_HIGH, 0x41);
1272 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R17, word);
1273 EEPROM(rt2x00dev, "BBPtune r17: 0x%04x\n", word);
1275 rt2x00_set_field16(&word, EEPROM_BBPTUNE_VGCLOWER, bbp);
1276 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_VGC, word);
1279 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R24, &word);
1280 if (word == 0xffff) {
1281 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R24_LOW, 0x40);
1282 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R24_HIGH, 0x80);
1283 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R24, word);
1284 EEPROM(rt2x00dev, "BBPtune r24: 0x%04x\n", word);
1287 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R25, &word);
1288 if (word == 0xffff) {
1289 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R25_LOW, 0x40);
1290 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R25_HIGH, 0x50);
1291 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R25, word);
1292 EEPROM(rt2x00dev, "BBPtune r25: 0x%04x\n", word);
1295 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R61, &word);
1296 if (word == 0xffff) {
1297 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R61_LOW, 0x60);
1298 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R61_HIGH, 0x6d);
1299 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R61, word);
1300 EEPROM(rt2x00dev, "BBPtune r61: 0x%04x\n", word);
1306 static int rt2500usb_init_eeprom(struct rt2x00_dev *rt2x00dev)
1313 * Read EEPROM word for configuration.
1315 rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &eeprom);
1318 * Identify RF chipset.
1320 value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RF_TYPE);
1321 rt2500usb_register_read(rt2x00dev, MAC_CSR0, ®);
1322 rt2x00_set_chip(rt2x00dev, RT2570, value, reg);
1324 if (!rt2x00_check_rev(&rt2x00dev->chip, 0)) {
1325 ERROR(rt2x00dev, "Invalid RT chipset detected.\n");
1329 if (!rt2x00_rf(&rt2x00dev->chip, RF2522) &&
1330 !rt2x00_rf(&rt2x00dev->chip, RF2523) &&
1331 !rt2x00_rf(&rt2x00dev->chip, RF2524) &&
1332 !rt2x00_rf(&rt2x00dev->chip, RF2525) &&
1333 !rt2x00_rf(&rt2x00dev->chip, RF2525E) &&
1334 !rt2x00_rf(&rt2x00dev->chip, RF5222)) {
1335 ERROR(rt2x00dev, "Invalid RF chipset detected.\n");
1340 * Identify default antenna configuration.
1342 rt2x00dev->default_ant.tx =
1343 rt2x00_get_field16(eeprom, EEPROM_ANTENNA_TX_DEFAULT);
1344 rt2x00dev->default_ant.rx =
1345 rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RX_DEFAULT);
1348 * When the eeprom indicates SW_DIVERSITY use HW_DIVERSITY instead.
1349 * I am not 100% sure about this, but the legacy drivers do not
1350 * indicate antenna swapping in software is required when
1351 * diversity is enabled.
1353 if (rt2x00dev->default_ant.tx == ANTENNA_SW_DIVERSITY)
1354 rt2x00dev->default_ant.tx = ANTENNA_HW_DIVERSITY;
1355 if (rt2x00dev->default_ant.rx == ANTENNA_SW_DIVERSITY)
1356 rt2x00dev->default_ant.rx = ANTENNA_HW_DIVERSITY;
1359 * Store led mode, for correct led behaviour.
1361 #ifdef CONFIG_RT2500USB_LEDS
1362 value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_LED_MODE);
1366 case LED_MODE_ALPHA:
1367 case LED_MODE_DEFAULT:
1368 rt2x00dev->led_flags = LED_SUPPORT_RADIO;
1370 case LED_MODE_TXRX_ACTIVITY:
1371 rt2x00dev->led_flags =
1372 LED_SUPPORT_RADIO | LED_SUPPORT_ACTIVITY;
1374 case LED_MODE_SIGNAL_STRENGTH:
1375 rt2x00dev->led_flags = LED_SUPPORT_RADIO;
1380 * Store the current led register value, we need it later
1381 * in set_brightness but that is called in irq context which
1382 * means we can't use rt2500usb_register_read() at that time.
1384 rt2500usb_register_read(rt2x00dev, MAC_CSR20, &rt2x00dev->led_mcu_reg);
1385 #endif /* CONFIG_RT2500USB_LEDS */
1388 * Check if the BBP tuning should be disabled.
1390 rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &eeprom);
1391 if (rt2x00_get_field16(eeprom, EEPROM_NIC_DYN_BBP_TUNE))
1392 __set_bit(CONFIG_DISABLE_LINK_TUNING, &rt2x00dev->flags);
1395 * Read the RSSI <-> dBm offset information.
1397 rt2x00_eeprom_read(rt2x00dev, EEPROM_CALIBRATE_OFFSET, &eeprom);
1398 rt2x00dev->rssi_offset =
1399 rt2x00_get_field16(eeprom, EEPROM_CALIBRATE_OFFSET_RSSI);
1405 * RF value list for RF2522
1408 static const struct rf_channel rf_vals_bg_2522[] = {
1409 { 1, 0x00002050, 0x000c1fda, 0x00000101, 0 },
1410 { 2, 0x00002050, 0x000c1fee, 0x00000101, 0 },
1411 { 3, 0x00002050, 0x000c2002, 0x00000101, 0 },
1412 { 4, 0x00002050, 0x000c2016, 0x00000101, 0 },
1413 { 5, 0x00002050, 0x000c202a, 0x00000101, 0 },
1414 { 6, 0x00002050, 0x000c203e, 0x00000101, 0 },
1415 { 7, 0x00002050, 0x000c2052, 0x00000101, 0 },
1416 { 8, 0x00002050, 0x000c2066, 0x00000101, 0 },
1417 { 9, 0x00002050, 0x000c207a, 0x00000101, 0 },
1418 { 10, 0x00002050, 0x000c208e, 0x00000101, 0 },
1419 { 11, 0x00002050, 0x000c20a2, 0x00000101, 0 },
1420 { 12, 0x00002050, 0x000c20b6, 0x00000101, 0 },
1421 { 13, 0x00002050, 0x000c20ca, 0x00000101, 0 },
1422 { 14, 0x00002050, 0x000c20fa, 0x00000101, 0 },
1426 * RF value list for RF2523
1429 static const struct rf_channel rf_vals_bg_2523[] = {
1430 { 1, 0x00022010, 0x00000c9e, 0x000e0111, 0x00000a1b },
1431 { 2, 0x00022010, 0x00000ca2, 0x000e0111, 0x00000a1b },
1432 { 3, 0x00022010, 0x00000ca6, 0x000e0111, 0x00000a1b },
1433 { 4, 0x00022010, 0x00000caa, 0x000e0111, 0x00000a1b },
1434 { 5, 0x00022010, 0x00000cae, 0x000e0111, 0x00000a1b },
1435 { 6, 0x00022010, 0x00000cb2, 0x000e0111, 0x00000a1b },
1436 { 7, 0x00022010, 0x00000cb6, 0x000e0111, 0x00000a1b },
1437 { 8, 0x00022010, 0x00000cba, 0x000e0111, 0x00000a1b },
1438 { 9, 0x00022010, 0x00000cbe, 0x000e0111, 0x00000a1b },
1439 { 10, 0x00022010, 0x00000d02, 0x000e0111, 0x00000a1b },
1440 { 11, 0x00022010, 0x00000d06, 0x000e0111, 0x00000a1b },
1441 { 12, 0x00022010, 0x00000d0a, 0x000e0111, 0x00000a1b },
1442 { 13, 0x00022010, 0x00000d0e, 0x000e0111, 0x00000a1b },
1443 { 14, 0x00022010, 0x00000d1a, 0x000e0111, 0x00000a03 },
1447 * RF value list for RF2524
1450 static const struct rf_channel rf_vals_bg_2524[] = {
1451 { 1, 0x00032020, 0x00000c9e, 0x00000101, 0x00000a1b },
1452 { 2, 0x00032020, 0x00000ca2, 0x00000101, 0x00000a1b },
1453 { 3, 0x00032020, 0x00000ca6, 0x00000101, 0x00000a1b },
1454 { 4, 0x00032020, 0x00000caa, 0x00000101, 0x00000a1b },
1455 { 5, 0x00032020, 0x00000cae, 0x00000101, 0x00000a1b },
1456 { 6, 0x00032020, 0x00000cb2, 0x00000101, 0x00000a1b },
1457 { 7, 0x00032020, 0x00000cb6, 0x00000101, 0x00000a1b },
1458 { 8, 0x00032020, 0x00000cba, 0x00000101, 0x00000a1b },
1459 { 9, 0x00032020, 0x00000cbe, 0x00000101, 0x00000a1b },
1460 { 10, 0x00032020, 0x00000d02, 0x00000101, 0x00000a1b },
1461 { 11, 0x00032020, 0x00000d06, 0x00000101, 0x00000a1b },
1462 { 12, 0x00032020, 0x00000d0a, 0x00000101, 0x00000a1b },
1463 { 13, 0x00032020, 0x00000d0e, 0x00000101, 0x00000a1b },
1464 { 14, 0x00032020, 0x00000d1a, 0x00000101, 0x00000a03 },
1468 * RF value list for RF2525
1471 static const struct rf_channel rf_vals_bg_2525[] = {
1472 { 1, 0x00022020, 0x00080c9e, 0x00060111, 0x00000a1b },
1473 { 2, 0x00022020, 0x00080ca2, 0x00060111, 0x00000a1b },
1474 { 3, 0x00022020, 0x00080ca6, 0x00060111, 0x00000a1b },
1475 { 4, 0x00022020, 0x00080caa, 0x00060111, 0x00000a1b },
1476 { 5, 0x00022020, 0x00080cae, 0x00060111, 0x00000a1b },
1477 { 6, 0x00022020, 0x00080cb2, 0x00060111, 0x00000a1b },
1478 { 7, 0x00022020, 0x00080cb6, 0x00060111, 0x00000a1b },
1479 { 8, 0x00022020, 0x00080cba, 0x00060111, 0x00000a1b },
1480 { 9, 0x00022020, 0x00080cbe, 0x00060111, 0x00000a1b },
1481 { 10, 0x00022020, 0x00080d02, 0x00060111, 0x00000a1b },
1482 { 11, 0x00022020, 0x00080d06, 0x00060111, 0x00000a1b },
1483 { 12, 0x00022020, 0x00080d0a, 0x00060111, 0x00000a1b },
1484 { 13, 0x00022020, 0x00080d0e, 0x00060111, 0x00000a1b },
1485 { 14, 0x00022020, 0x00080d1a, 0x00060111, 0x00000a03 },
1489 * RF value list for RF2525e
1492 static const struct rf_channel rf_vals_bg_2525e[] = {
1493 { 1, 0x00022010, 0x0000089a, 0x00060111, 0x00000e1b },
1494 { 2, 0x00022010, 0x0000089e, 0x00060111, 0x00000e07 },
1495 { 3, 0x00022010, 0x0000089e, 0x00060111, 0x00000e1b },
1496 { 4, 0x00022010, 0x000008a2, 0x00060111, 0x00000e07 },
1497 { 5, 0x00022010, 0x000008a2, 0x00060111, 0x00000e1b },
1498 { 6, 0x00022010, 0x000008a6, 0x00060111, 0x00000e07 },
1499 { 7, 0x00022010, 0x000008a6, 0x00060111, 0x00000e1b },
1500 { 8, 0x00022010, 0x000008aa, 0x00060111, 0x00000e07 },
1501 { 9, 0x00022010, 0x000008aa, 0x00060111, 0x00000e1b },
1502 { 10, 0x00022010, 0x000008ae, 0x00060111, 0x00000e07 },
1503 { 11, 0x00022010, 0x000008ae, 0x00060111, 0x00000e1b },
1504 { 12, 0x00022010, 0x000008b2, 0x00060111, 0x00000e07 },
1505 { 13, 0x00022010, 0x000008b2, 0x00060111, 0x00000e1b },
1506 { 14, 0x00022010, 0x000008b6, 0x00060111, 0x00000e23 },
1510 * RF value list for RF5222
1511 * Supports: 2.4 GHz & 5.2 GHz
1513 static const struct rf_channel rf_vals_5222[] = {
1514 { 1, 0x00022020, 0x00001136, 0x00000101, 0x00000a0b },
1515 { 2, 0x00022020, 0x0000113a, 0x00000101, 0x00000a0b },
1516 { 3, 0x00022020, 0x0000113e, 0x00000101, 0x00000a0b },
1517 { 4, 0x00022020, 0x00001182, 0x00000101, 0x00000a0b },
1518 { 5, 0x00022020, 0x00001186, 0x00000101, 0x00000a0b },
1519 { 6, 0x00022020, 0x0000118a, 0x00000101, 0x00000a0b },
1520 { 7, 0x00022020, 0x0000118e, 0x00000101, 0x00000a0b },
1521 { 8, 0x00022020, 0x00001192, 0x00000101, 0x00000a0b },
1522 { 9, 0x00022020, 0x00001196, 0x00000101, 0x00000a0b },
1523 { 10, 0x00022020, 0x0000119a, 0x00000101, 0x00000a0b },
1524 { 11, 0x00022020, 0x0000119e, 0x00000101, 0x00000a0b },
1525 { 12, 0x00022020, 0x000011a2, 0x00000101, 0x00000a0b },
1526 { 13, 0x00022020, 0x000011a6, 0x00000101, 0x00000a0b },
1527 { 14, 0x00022020, 0x000011ae, 0x00000101, 0x00000a1b },
1529 /* 802.11 UNI / HyperLan 2 */
1530 { 36, 0x00022010, 0x00018896, 0x00000101, 0x00000a1f },
1531 { 40, 0x00022010, 0x0001889a, 0x00000101, 0x00000a1f },
1532 { 44, 0x00022010, 0x0001889e, 0x00000101, 0x00000a1f },
1533 { 48, 0x00022010, 0x000188a2, 0x00000101, 0x00000a1f },
1534 { 52, 0x00022010, 0x000188a6, 0x00000101, 0x00000a1f },
1535 { 66, 0x00022010, 0x000188aa, 0x00000101, 0x00000a1f },
1536 { 60, 0x00022010, 0x000188ae, 0x00000101, 0x00000a1f },
1537 { 64, 0x00022010, 0x000188b2, 0x00000101, 0x00000a1f },
1539 /* 802.11 HyperLan 2 */
1540 { 100, 0x00022010, 0x00008802, 0x00000101, 0x00000a0f },
1541 { 104, 0x00022010, 0x00008806, 0x00000101, 0x00000a0f },
1542 { 108, 0x00022010, 0x0000880a, 0x00000101, 0x00000a0f },
1543 { 112, 0x00022010, 0x0000880e, 0x00000101, 0x00000a0f },
1544 { 116, 0x00022010, 0x00008812, 0x00000101, 0x00000a0f },
1545 { 120, 0x00022010, 0x00008816, 0x00000101, 0x00000a0f },
1546 { 124, 0x00022010, 0x0000881a, 0x00000101, 0x00000a0f },
1547 { 128, 0x00022010, 0x0000881e, 0x00000101, 0x00000a0f },
1548 { 132, 0x00022010, 0x00008822, 0x00000101, 0x00000a0f },
1549 { 136, 0x00022010, 0x00008826, 0x00000101, 0x00000a0f },
1552 { 140, 0x00022010, 0x0000882a, 0x00000101, 0x00000a0f },
1553 { 149, 0x00022020, 0x000090a6, 0x00000101, 0x00000a07 },
1554 { 153, 0x00022020, 0x000090ae, 0x00000101, 0x00000a07 },
1555 { 157, 0x00022020, 0x000090b6, 0x00000101, 0x00000a07 },
1556 { 161, 0x00022020, 0x000090be, 0x00000101, 0x00000a07 },
1559 static void rt2500usb_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
1561 struct hw_mode_spec *spec = &rt2x00dev->spec;
1566 * Initialize all hw fields.
1568 rt2x00dev->hw->flags =
1569 IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE |
1570 IEEE80211_HW_RX_INCLUDES_FCS |
1571 IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING;
1572 rt2x00dev->hw->extra_tx_headroom = TXD_DESC_SIZE;
1573 rt2x00dev->hw->max_signal = MAX_SIGNAL;
1574 rt2x00dev->hw->max_rssi = MAX_RX_SSI;
1575 rt2x00dev->hw->queues = 2;
1577 SET_IEEE80211_DEV(rt2x00dev->hw, &rt2x00dev_usb(rt2x00dev)->dev);
1578 SET_IEEE80211_PERM_ADDR(rt2x00dev->hw,
1579 rt2x00_eeprom_addr(rt2x00dev,
1580 EEPROM_MAC_ADDR_0));
1583 * Convert tx_power array in eeprom.
1585 txpower = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_START);
1586 for (i = 0; i < 14; i++)
1587 txpower[i] = TXPOWER_FROM_DEV(txpower[i]);
1590 * Initialize hw_mode information.
1592 spec->supported_bands = SUPPORT_BAND_2GHZ;
1593 spec->supported_rates = SUPPORT_RATE_CCK | SUPPORT_RATE_OFDM;
1594 spec->tx_power_a = NULL;
1595 spec->tx_power_bg = txpower;
1596 spec->tx_power_default = DEFAULT_TXPOWER;
1598 if (rt2x00_rf(&rt2x00dev->chip, RF2522)) {
1599 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2522);
1600 spec->channels = rf_vals_bg_2522;
1601 } else if (rt2x00_rf(&rt2x00dev->chip, RF2523)) {
1602 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2523);
1603 spec->channels = rf_vals_bg_2523;
1604 } else if (rt2x00_rf(&rt2x00dev->chip, RF2524)) {
1605 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2524);
1606 spec->channels = rf_vals_bg_2524;
1607 } else if (rt2x00_rf(&rt2x00dev->chip, RF2525)) {
1608 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2525);
1609 spec->channels = rf_vals_bg_2525;
1610 } else if (rt2x00_rf(&rt2x00dev->chip, RF2525E)) {
1611 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2525e);
1612 spec->channels = rf_vals_bg_2525e;
1613 } else if (rt2x00_rf(&rt2x00dev->chip, RF5222)) {
1614 spec->supported_bands |= SUPPORT_BAND_5GHZ;
1615 spec->num_channels = ARRAY_SIZE(rf_vals_5222);
1616 spec->channels = rf_vals_5222;
1620 static int rt2500usb_probe_hw(struct rt2x00_dev *rt2x00dev)
1625 * Allocate eeprom data.
1627 retval = rt2500usb_validate_eeprom(rt2x00dev);
1631 retval = rt2500usb_init_eeprom(rt2x00dev);
1636 * Initialize hw specifications.
1638 rt2500usb_probe_hw_mode(rt2x00dev);
1641 * This device requires the atim queue
1643 __set_bit(DRIVER_REQUIRE_ATIM_QUEUE, &rt2x00dev->flags);
1644 __set_bit(DRIVER_REQUIRE_BEACON_GUARD, &rt2x00dev->flags);
1647 * Set the rssi offset.
1649 rt2x00dev->rssi_offset = DEFAULT_RSSI_OFFSET;
1655 * IEEE80211 stack callback functions.
1657 static void rt2500usb_configure_filter(struct ieee80211_hw *hw,
1658 unsigned int changed_flags,
1659 unsigned int *total_flags,
1661 struct dev_addr_list *mc_list)
1663 struct rt2x00_dev *rt2x00dev = hw->priv;
1667 * Mask off any flags we are going to ignore from
1668 * the total_flags field.
1679 * Apply some rules to the filters:
1680 * - Some filters imply different filters to be set.
1681 * - Some things we can't filter out at all.
1684 *total_flags |= FIF_ALLMULTI;
1685 if (*total_flags & FIF_OTHER_BSS ||
1686 *total_flags & FIF_PROMISC_IN_BSS)
1687 *total_flags |= FIF_PROMISC_IN_BSS | FIF_OTHER_BSS;
1690 * Check if there is any work left for us.
1692 if (rt2x00dev->packet_filter == *total_flags)
1694 rt2x00dev->packet_filter = *total_flags;
1697 * When in atomic context, reschedule and let rt2x00lib
1698 * call this function again.
1701 queue_work(rt2x00dev->hw->workqueue, &rt2x00dev->filter_work);
1706 * Start configuration steps.
1707 * Note that the version error will always be dropped
1708 * and broadcast frames will always be accepted since
1709 * there is no filter for it at this time.
1711 rt2500usb_register_read(rt2x00dev, TXRX_CSR2, ®);
1712 rt2x00_set_field16(®, TXRX_CSR2_DROP_CRC,
1713 !(*total_flags & FIF_FCSFAIL));
1714 rt2x00_set_field16(®, TXRX_CSR2_DROP_PHYSICAL,
1715 !(*total_flags & FIF_PLCPFAIL));
1716 rt2x00_set_field16(®, TXRX_CSR2_DROP_CONTROL,
1717 !(*total_flags & FIF_CONTROL));
1718 rt2x00_set_field16(®, TXRX_CSR2_DROP_NOT_TO_ME,
1719 !(*total_flags & FIF_PROMISC_IN_BSS));
1720 rt2x00_set_field16(®, TXRX_CSR2_DROP_TODS,
1721 !(*total_flags & FIF_PROMISC_IN_BSS));
1722 rt2x00_set_field16(®, TXRX_CSR2_DROP_VERSION_ERROR, 1);
1723 rt2x00_set_field16(®, TXRX_CSR2_DROP_MULTICAST,
1724 !(*total_flags & FIF_ALLMULTI));
1725 rt2x00_set_field16(®, TXRX_CSR2_DROP_BROADCAST, 0);
1726 rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
1729 static int rt2500usb_beacon_update(struct ieee80211_hw *hw,
1730 struct sk_buff *skb,
1731 struct ieee80211_tx_control *control)
1733 struct rt2x00_dev *rt2x00dev = hw->priv;
1734 struct usb_device *usb_dev = rt2x00dev_usb_dev(rt2x00dev);
1735 struct rt2x00_intf *intf = vif_to_intf(control->vif);
1736 struct queue_entry_priv_usb_bcn *priv_bcn;
1737 struct skb_frame_desc *skbdesc;
1738 int pipe = usb_sndbulkpipe(usb_dev, 1);
1742 if (unlikely(!intf->beacon))
1745 priv_bcn = intf->beacon->priv_data;
1748 * Add the descriptor in front of the skb.
1750 skb_push(skb, intf->beacon->queue->desc_size);
1751 memset(skb->data, 0, intf->beacon->queue->desc_size);
1754 * Fill in skb descriptor
1756 skbdesc = get_skb_frame_desc(skb);
1757 memset(skbdesc, 0, sizeof(*skbdesc));
1758 skbdesc->flags |= FRAME_DESC_DRIVER_GENERATED;
1759 skbdesc->data = skb->data + intf->beacon->queue->desc_size;
1760 skbdesc->data_len = skb->len - intf->beacon->queue->desc_size;
1761 skbdesc->desc = skb->data;
1762 skbdesc->desc_len = intf->beacon->queue->desc_size;
1763 skbdesc->entry = intf->beacon;
1766 * Disable beaconing while we are reloading the beacon data,
1767 * otherwise we might be sending out invalid data.
1769 rt2500usb_register_read(rt2x00dev, TXRX_CSR19, ®);
1770 rt2x00_set_field16(®, TXRX_CSR19_TSF_COUNT, 0);
1771 rt2x00_set_field16(®, TXRX_CSR19_TBCN, 0);
1772 rt2x00_set_field16(®, TXRX_CSR19_BEACON_GEN, 0);
1773 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1776 * mac80211 doesn't provide the control->queue variable
1777 * for beacons. Set our own queue identification so
1778 * it can be used during descriptor initialization.
1780 control->queue = RT2X00_BCN_QUEUE_BEACON;
1781 rt2x00lib_write_tx_desc(rt2x00dev, skb, control);
1784 * USB devices cannot blindly pass the skb->len as the
1785 * length of the data to usb_fill_bulk_urb. Pass the skb
1786 * to the driver to determine what the length should be.
1788 length = rt2500usb_get_tx_data_len(rt2x00dev, skb);
1790 usb_fill_bulk_urb(priv_bcn->urb, usb_dev, pipe,
1791 skb->data, length, rt2500usb_beacondone,
1795 * Second we need to create the guardian byte.
1796 * We only need a single byte, so lets recycle
1797 * the 'flags' field we are not using for beacons.
1799 priv_bcn->guardian_data = 0;
1800 usb_fill_bulk_urb(priv_bcn->guardian_urb, usb_dev, pipe,
1801 &priv_bcn->guardian_data, 1, rt2500usb_beacondone,
1805 * Send out the guardian byte.
1807 usb_submit_urb(priv_bcn->guardian_urb, GFP_ATOMIC);
1810 * Enable beacon generation.
1812 rt2500usb_kick_tx_queue(rt2x00dev, control->queue);
1817 static const struct ieee80211_ops rt2500usb_mac80211_ops = {
1819 .start = rt2x00mac_start,
1820 .stop = rt2x00mac_stop,
1821 .add_interface = rt2x00mac_add_interface,
1822 .remove_interface = rt2x00mac_remove_interface,
1823 .config = rt2x00mac_config,
1824 .config_interface = rt2x00mac_config_interface,
1825 .configure_filter = rt2500usb_configure_filter,
1826 .get_stats = rt2x00mac_get_stats,
1827 .bss_info_changed = rt2x00mac_bss_info_changed,
1828 .conf_tx = rt2x00mac_conf_tx,
1829 .get_tx_stats = rt2x00mac_get_tx_stats,
1830 .beacon_update = rt2500usb_beacon_update,
1833 static const struct rt2x00lib_ops rt2500usb_rt2x00_ops = {
1834 .probe_hw = rt2500usb_probe_hw,
1835 .initialize = rt2x00usb_initialize,
1836 .uninitialize = rt2x00usb_uninitialize,
1837 .init_rxentry = rt2x00usb_init_rxentry,
1838 .init_txentry = rt2x00usb_init_txentry,
1839 .set_device_state = rt2500usb_set_device_state,
1840 .link_stats = rt2500usb_link_stats,
1841 .reset_tuner = rt2500usb_reset_tuner,
1842 .link_tuner = rt2500usb_link_tuner,
1843 .led_brightness = rt2500usb_led_brightness,
1844 .write_tx_desc = rt2500usb_write_tx_desc,
1845 .write_tx_data = rt2x00usb_write_tx_data,
1846 .get_tx_data_len = rt2500usb_get_tx_data_len,
1847 .kick_tx_queue = rt2500usb_kick_tx_queue,
1848 .fill_rxdone = rt2500usb_fill_rxdone,
1849 .config_intf = rt2500usb_config_intf,
1850 .config_preamble = rt2500usb_config_preamble,
1851 .config = rt2500usb_config,
1854 static const struct data_queue_desc rt2500usb_queue_rx = {
1855 .entry_num = RX_ENTRIES,
1856 .data_size = DATA_FRAME_SIZE,
1857 .desc_size = RXD_DESC_SIZE,
1858 .priv_size = sizeof(struct queue_entry_priv_usb_rx),
1861 static const struct data_queue_desc rt2500usb_queue_tx = {
1862 .entry_num = TX_ENTRIES,
1863 .data_size = DATA_FRAME_SIZE,
1864 .desc_size = TXD_DESC_SIZE,
1865 .priv_size = sizeof(struct queue_entry_priv_usb_tx),
1868 static const struct data_queue_desc rt2500usb_queue_bcn = {
1869 .entry_num = BEACON_ENTRIES,
1870 .data_size = MGMT_FRAME_SIZE,
1871 .desc_size = TXD_DESC_SIZE,
1872 .priv_size = sizeof(struct queue_entry_priv_usb_bcn),
1875 static const struct data_queue_desc rt2500usb_queue_atim = {
1876 .entry_num = ATIM_ENTRIES,
1877 .data_size = DATA_FRAME_SIZE,
1878 .desc_size = TXD_DESC_SIZE,
1879 .priv_size = sizeof(struct queue_entry_priv_usb_tx),
1882 static const struct rt2x00_ops rt2500usb_ops = {
1883 .name = KBUILD_MODNAME,
1886 .eeprom_size = EEPROM_SIZE,
1888 .rx = &rt2500usb_queue_rx,
1889 .tx = &rt2500usb_queue_tx,
1890 .bcn = &rt2500usb_queue_bcn,
1891 .atim = &rt2500usb_queue_atim,
1892 .lib = &rt2500usb_rt2x00_ops,
1893 .hw = &rt2500usb_mac80211_ops,
1894 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
1895 .debugfs = &rt2500usb_rt2x00debug,
1896 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
1900 * rt2500usb module information.
1902 static struct usb_device_id rt2500usb_device_table[] = {
1904 { USB_DEVICE(0x0b05, 0x1706), USB_DEVICE_DATA(&rt2500usb_ops) },
1905 { USB_DEVICE(0x0b05, 0x1707), USB_DEVICE_DATA(&rt2500usb_ops) },
1907 { USB_DEVICE(0x050d, 0x7050), USB_DEVICE_DATA(&rt2500usb_ops) },
1908 { USB_DEVICE(0x050d, 0x7051), USB_DEVICE_DATA(&rt2500usb_ops) },
1909 { USB_DEVICE(0x050d, 0x705a), USB_DEVICE_DATA(&rt2500usb_ops) },
1911 { USB_DEVICE(0x13b1, 0x000d), USB_DEVICE_DATA(&rt2500usb_ops) },
1912 { USB_DEVICE(0x13b1, 0x0011), USB_DEVICE_DATA(&rt2500usb_ops) },
1913 { USB_DEVICE(0x13b1, 0x001a), USB_DEVICE_DATA(&rt2500usb_ops) },
1915 { USB_DEVICE(0x14b2, 0x3c02), USB_DEVICE_DATA(&rt2500usb_ops) },
1917 { USB_DEVICE(0x2001, 0x3c00), USB_DEVICE_DATA(&rt2500usb_ops) },
1919 { USB_DEVICE(0x1044, 0x8001), USB_DEVICE_DATA(&rt2500usb_ops) },
1920 { USB_DEVICE(0x1044, 0x8007), USB_DEVICE_DATA(&rt2500usb_ops) },
1922 { USB_DEVICE(0x06f8, 0xe000), USB_DEVICE_DATA(&rt2500usb_ops) },
1924 { USB_DEVICE(0x0411, 0x005e), USB_DEVICE_DATA(&rt2500usb_ops) },
1925 { USB_DEVICE(0x0411, 0x0066), USB_DEVICE_DATA(&rt2500usb_ops) },
1926 { USB_DEVICE(0x0411, 0x0067), USB_DEVICE_DATA(&rt2500usb_ops) },
1927 { USB_DEVICE(0x0411, 0x008b), USB_DEVICE_DATA(&rt2500usb_ops) },
1928 { USB_DEVICE(0x0411, 0x0097), USB_DEVICE_DATA(&rt2500usb_ops) },
1930 { USB_DEVICE(0x0db0, 0x6861), USB_DEVICE_DATA(&rt2500usb_ops) },
1931 { USB_DEVICE(0x0db0, 0x6865), USB_DEVICE_DATA(&rt2500usb_ops) },
1932 { USB_DEVICE(0x0db0, 0x6869), USB_DEVICE_DATA(&rt2500usb_ops) },
1934 { USB_DEVICE(0x148f, 0x1706), USB_DEVICE_DATA(&rt2500usb_ops) },
1935 { USB_DEVICE(0x148f, 0x2570), USB_DEVICE_DATA(&rt2500usb_ops) },
1936 { USB_DEVICE(0x148f, 0x2573), USB_DEVICE_DATA(&rt2500usb_ops) },
1937 { USB_DEVICE(0x148f, 0x9020), USB_DEVICE_DATA(&rt2500usb_ops) },
1939 { USB_DEVICE(0x0681, 0x3c06), USB_DEVICE_DATA(&rt2500usb_ops) },
1941 { USB_DEVICE(0x0707, 0xee13), USB_DEVICE_DATA(&rt2500usb_ops) },
1943 { USB_DEVICE(0x114b, 0x0110), USB_DEVICE_DATA(&rt2500usb_ops) },
1945 { USB_DEVICE(0x0eb0, 0x9020), USB_DEVICE_DATA(&rt2500usb_ops) },
1947 { USB_DEVICE(0x5a57, 0x0260), USB_DEVICE_DATA(&rt2500usb_ops) },
1951 MODULE_AUTHOR(DRV_PROJECT);
1952 MODULE_VERSION(DRV_VERSION);
1953 MODULE_DESCRIPTION("Ralink RT2500 USB Wireless LAN driver.");
1954 MODULE_SUPPORTED_DEVICE("Ralink RT2570 USB chipset based cards");
1955 MODULE_DEVICE_TABLE(usb, rt2500usb_device_table);
1956 MODULE_LICENSE("GPL");
1958 static struct usb_driver rt2500usb_driver = {
1959 .name = KBUILD_MODNAME,
1960 .id_table = rt2500usb_device_table,
1961 .probe = rt2x00usb_probe,
1962 .disconnect = rt2x00usb_disconnect,
1963 .suspend = rt2x00usb_suspend,
1964 .resume = rt2x00usb_resume,
1967 static int __init rt2500usb_init(void)
1969 return usb_register(&rt2500usb_driver);
1972 static void __exit rt2500usb_exit(void)
1974 usb_deregister(&rt2500usb_driver);
1977 module_init(rt2500usb_init);
1978 module_exit(rt2500usb_exit);