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))
145 * Write the data into the BBP.
148 rt2x00_set_field16(®, PHY_CSR7_DATA, value);
149 rt2x00_set_field16(®, PHY_CSR7_REG_ID, word);
150 rt2x00_set_field16(®, PHY_CSR7_READ_CONTROL, 0);
152 rt2500usb_register_write_lock(rt2x00dev, PHY_CSR7, reg);
154 mutex_unlock(&rt2x00dev->usb_cache_mutex);
159 mutex_unlock(&rt2x00dev->usb_cache_mutex);
161 ERROR(rt2x00dev, "PHY_CSR8 register busy. Write failed.\n");
164 static void rt2500usb_bbp_read(struct rt2x00_dev *rt2x00dev,
165 const unsigned int word, u8 *value)
169 mutex_lock(&rt2x00dev->usb_cache_mutex);
172 * Wait until the BBP becomes ready.
174 reg = rt2500usb_bbp_check(rt2x00dev);
175 if (rt2x00_get_field16(reg, PHY_CSR8_BUSY))
179 * Write the request into the BBP.
182 rt2x00_set_field16(®, PHY_CSR7_REG_ID, word);
183 rt2x00_set_field16(®, PHY_CSR7_READ_CONTROL, 1);
185 rt2500usb_register_write_lock(rt2x00dev, PHY_CSR7, reg);
188 * Wait until the BBP becomes ready.
190 reg = rt2500usb_bbp_check(rt2x00dev);
191 if (rt2x00_get_field16(reg, PHY_CSR8_BUSY))
194 rt2500usb_register_read_lock(rt2x00dev, PHY_CSR7, ®);
195 *value = rt2x00_get_field16(reg, PHY_CSR7_DATA);
197 mutex_unlock(&rt2x00dev->usb_cache_mutex);
202 mutex_unlock(&rt2x00dev->usb_cache_mutex);
204 ERROR(rt2x00dev, "PHY_CSR8 register busy. Read failed.\n");
208 static void rt2500usb_rf_write(struct rt2x00_dev *rt2x00dev,
209 const unsigned int word, const u32 value)
217 mutex_lock(&rt2x00dev->usb_cache_mutex);
219 for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
220 rt2500usb_register_read_lock(rt2x00dev, PHY_CSR10, ®);
221 if (!rt2x00_get_field16(reg, PHY_CSR10_RF_BUSY))
223 udelay(REGISTER_BUSY_DELAY);
226 mutex_unlock(&rt2x00dev->usb_cache_mutex);
227 ERROR(rt2x00dev, "PHY_CSR10 register busy. Write failed.\n");
232 rt2x00_set_field16(®, PHY_CSR9_RF_VALUE, value);
233 rt2500usb_register_write_lock(rt2x00dev, PHY_CSR9, reg);
236 rt2x00_set_field16(®, PHY_CSR10_RF_VALUE, value >> 16);
237 rt2x00_set_field16(®, PHY_CSR10_RF_NUMBER_OF_BITS, 20);
238 rt2x00_set_field16(®, PHY_CSR10_RF_IF_SELECT, 0);
239 rt2x00_set_field16(®, PHY_CSR10_RF_BUSY, 1);
241 rt2500usb_register_write_lock(rt2x00dev, PHY_CSR10, reg);
242 rt2x00_rf_write(rt2x00dev, word, value);
244 mutex_unlock(&rt2x00dev->usb_cache_mutex);
247 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
248 #define CSR_OFFSET(__word) ( CSR_REG_BASE + ((__word) * sizeof(u16)) )
250 static void rt2500usb_read_csr(struct rt2x00_dev *rt2x00dev,
251 const unsigned int word, u32 *data)
253 rt2500usb_register_read(rt2x00dev, CSR_OFFSET(word), (u16 *) data);
256 static void rt2500usb_write_csr(struct rt2x00_dev *rt2x00dev,
257 const unsigned int word, u32 data)
259 rt2500usb_register_write(rt2x00dev, CSR_OFFSET(word), data);
262 static const struct rt2x00debug rt2500usb_rt2x00debug = {
263 .owner = THIS_MODULE,
265 .read = rt2500usb_read_csr,
266 .write = rt2500usb_write_csr,
267 .word_size = sizeof(u16),
268 .word_count = CSR_REG_SIZE / sizeof(u16),
271 .read = rt2x00_eeprom_read,
272 .write = rt2x00_eeprom_write,
273 .word_size = sizeof(u16),
274 .word_count = EEPROM_SIZE / sizeof(u16),
277 .read = rt2500usb_bbp_read,
278 .write = rt2500usb_bbp_write,
279 .word_size = sizeof(u8),
280 .word_count = BBP_SIZE / sizeof(u8),
283 .read = rt2x00_rf_read,
284 .write = rt2500usb_rf_write,
285 .word_size = sizeof(u32),
286 .word_count = RF_SIZE / sizeof(u32),
289 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
291 #ifdef CONFIG_RT2500USB_LEDS
292 static void rt2500usb_brightness_set(struct led_classdev *led_cdev,
293 enum led_brightness brightness)
295 struct rt2x00_led *led =
296 container_of(led_cdev, struct rt2x00_led, led_dev);
297 unsigned int enabled = brightness != LED_OFF;
300 rt2500usb_register_read(led->rt2x00dev, MAC_CSR20, ®);
302 if (led->type == LED_TYPE_RADIO || led->type == LED_TYPE_ASSOC)
303 rt2x00_set_field16(®, MAC_CSR20_LINK, enabled);
304 else if (led->type == LED_TYPE_ACTIVITY)
305 rt2x00_set_field16(®, MAC_CSR20_ACTIVITY, enabled);
307 rt2500usb_register_write(led->rt2x00dev, MAC_CSR20, reg);
310 static int rt2500usb_blink_set(struct led_classdev *led_cdev,
311 unsigned long *delay_on,
312 unsigned long *delay_off)
314 struct rt2x00_led *led =
315 container_of(led_cdev, struct rt2x00_led, led_dev);
318 rt2500usb_register_read(led->rt2x00dev, MAC_CSR21, ®);
319 rt2x00_set_field16(®, MAC_CSR21_ON_PERIOD, *delay_on);
320 rt2x00_set_field16(®, MAC_CSR21_OFF_PERIOD, *delay_off);
321 rt2500usb_register_write(led->rt2x00dev, MAC_CSR21, reg);
325 #endif /* CONFIG_RT2500USB_LEDS */
328 * Configuration handlers.
330 static void rt2500usb_config_filter(struct rt2x00_dev *rt2x00dev,
331 const unsigned int filter_flags)
336 * Start configuration steps.
337 * Note that the version error will always be dropped
338 * and broadcast frames will always be accepted since
339 * there is no filter for it at this time.
341 rt2500usb_register_read(rt2x00dev, TXRX_CSR2, ®);
342 rt2x00_set_field16(®, TXRX_CSR2_DROP_CRC,
343 !(filter_flags & FIF_FCSFAIL));
344 rt2x00_set_field16(®, TXRX_CSR2_DROP_PHYSICAL,
345 !(filter_flags & FIF_PLCPFAIL));
346 rt2x00_set_field16(®, TXRX_CSR2_DROP_CONTROL,
347 !(filter_flags & FIF_CONTROL));
348 rt2x00_set_field16(®, TXRX_CSR2_DROP_NOT_TO_ME,
349 !(filter_flags & FIF_PROMISC_IN_BSS));
350 rt2x00_set_field16(®, TXRX_CSR2_DROP_TODS,
351 !(filter_flags & FIF_PROMISC_IN_BSS) &&
352 !rt2x00dev->intf_ap_count);
353 rt2x00_set_field16(®, TXRX_CSR2_DROP_VERSION_ERROR, 1);
354 rt2x00_set_field16(®, TXRX_CSR2_DROP_MULTICAST,
355 !(filter_flags & FIF_ALLMULTI));
356 rt2x00_set_field16(®, TXRX_CSR2_DROP_BROADCAST, 0);
357 rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
360 static void rt2500usb_config_intf(struct rt2x00_dev *rt2x00dev,
361 struct rt2x00_intf *intf,
362 struct rt2x00intf_conf *conf,
363 const unsigned int flags)
365 unsigned int bcn_preload;
368 if (flags & CONFIG_UPDATE_TYPE) {
370 * Enable beacon config
372 bcn_preload = PREAMBLE + get_duration(IEEE80211_HEADER, 20);
373 rt2500usb_register_read(rt2x00dev, TXRX_CSR20, ®);
374 rt2x00_set_field16(®, TXRX_CSR20_OFFSET, bcn_preload >> 6);
375 rt2x00_set_field16(®, TXRX_CSR20_BCN_EXPECT_WINDOW,
376 2 * (conf->type != IEEE80211_IF_TYPE_STA));
377 rt2500usb_register_write(rt2x00dev, TXRX_CSR20, reg);
380 * Enable synchronisation.
382 rt2500usb_register_read(rt2x00dev, TXRX_CSR18, ®);
383 rt2x00_set_field16(®, TXRX_CSR18_OFFSET, 0);
384 rt2500usb_register_write(rt2x00dev, TXRX_CSR18, reg);
386 rt2500usb_register_read(rt2x00dev, TXRX_CSR19, ®);
387 rt2x00_set_field16(®, TXRX_CSR19_TSF_COUNT, 1);
388 rt2x00_set_field16(®, TXRX_CSR19_TSF_SYNC, conf->sync);
389 rt2x00_set_field16(®, TXRX_CSR19_TBCN, 1);
390 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
393 if (flags & CONFIG_UPDATE_MAC)
394 rt2500usb_register_multiwrite(rt2x00dev, MAC_CSR2, conf->mac,
395 (3 * sizeof(__le16)));
397 if (flags & CONFIG_UPDATE_BSSID)
398 rt2500usb_register_multiwrite(rt2x00dev, MAC_CSR5, conf->bssid,
399 (3 * sizeof(__le16)));
402 static void rt2500usb_config_erp(struct rt2x00_dev *rt2x00dev,
403 struct rt2x00lib_erp *erp)
407 rt2500usb_register_read(rt2x00dev, TXRX_CSR1, ®);
408 rt2x00_set_field16(®, TXRX_CSR1_ACK_TIMEOUT, erp->ack_timeout);
409 rt2500usb_register_write(rt2x00dev, TXRX_CSR1, reg);
411 rt2500usb_register_read(rt2x00dev, TXRX_CSR10, ®);
412 rt2x00_set_field16(®, TXRX_CSR10_AUTORESPOND_PREAMBLE,
413 !!erp->short_preamble);
414 rt2500usb_register_write(rt2x00dev, TXRX_CSR10, reg);
417 static void rt2500usb_config_phymode(struct rt2x00_dev *rt2x00dev,
418 const int basic_rate_mask)
420 rt2500usb_register_write(rt2x00dev, TXRX_CSR11, basic_rate_mask);
423 static void rt2500usb_config_channel(struct rt2x00_dev *rt2x00dev,
424 struct rf_channel *rf, const int txpower)
429 rt2x00_set_field32(&rf->rf3, RF3_TXPOWER, TXPOWER_TO_DEV(txpower));
432 * For RT2525E we should first set the channel to half band higher.
434 if (rt2x00_rf(&rt2x00dev->chip, RF2525E)) {
435 static const u32 vals[] = {
436 0x000008aa, 0x000008ae, 0x000008ae, 0x000008b2,
437 0x000008b2, 0x000008b6, 0x000008b6, 0x000008ba,
438 0x000008ba, 0x000008be, 0x000008b7, 0x00000902,
439 0x00000902, 0x00000906
442 rt2500usb_rf_write(rt2x00dev, 2, vals[rf->channel - 1]);
444 rt2500usb_rf_write(rt2x00dev, 4, rf->rf4);
447 rt2500usb_rf_write(rt2x00dev, 1, rf->rf1);
448 rt2500usb_rf_write(rt2x00dev, 2, rf->rf2);
449 rt2500usb_rf_write(rt2x00dev, 3, rf->rf3);
451 rt2500usb_rf_write(rt2x00dev, 4, rf->rf4);
454 static void rt2500usb_config_txpower(struct rt2x00_dev *rt2x00dev,
459 rt2x00_rf_read(rt2x00dev, 3, &rf3);
460 rt2x00_set_field32(&rf3, RF3_TXPOWER, TXPOWER_TO_DEV(txpower));
461 rt2500usb_rf_write(rt2x00dev, 3, rf3);
464 static void rt2500usb_config_antenna(struct rt2x00_dev *rt2x00dev,
465 struct antenna_setup *ant)
473 * We should never come here because rt2x00lib is supposed
474 * to catch this and send us the correct antenna explicitely.
476 BUG_ON(ant->rx == ANTENNA_SW_DIVERSITY ||
477 ant->tx == ANTENNA_SW_DIVERSITY);
479 rt2500usb_bbp_read(rt2x00dev, 2, &r2);
480 rt2500usb_bbp_read(rt2x00dev, 14, &r14);
481 rt2500usb_register_read(rt2x00dev, PHY_CSR5, &csr5);
482 rt2500usb_register_read(rt2x00dev, PHY_CSR6, &csr6);
485 * Configure the TX antenna.
488 case ANTENNA_HW_DIVERSITY:
489 rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 1);
490 rt2x00_set_field16(&csr5, PHY_CSR5_CCK, 1);
491 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM, 1);
494 rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 0);
495 rt2x00_set_field16(&csr5, PHY_CSR5_CCK, 0);
496 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM, 0);
500 rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 2);
501 rt2x00_set_field16(&csr5, PHY_CSR5_CCK, 2);
502 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM, 2);
507 * Configure the RX antenna.
510 case ANTENNA_HW_DIVERSITY:
511 rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 1);
514 rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 0);
518 rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 2);
523 * RT2525E and RT5222 need to flip TX I/Q
525 if (rt2x00_rf(&rt2x00dev->chip, RF2525E) ||
526 rt2x00_rf(&rt2x00dev->chip, RF5222)) {
527 rt2x00_set_field8(&r2, BBP_R2_TX_IQ_FLIP, 1);
528 rt2x00_set_field16(&csr5, PHY_CSR5_CCK_FLIP, 1);
529 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM_FLIP, 1);
532 * RT2525E does not need RX I/Q Flip.
534 if (rt2x00_rf(&rt2x00dev->chip, RF2525E))
535 rt2x00_set_field8(&r14, BBP_R14_RX_IQ_FLIP, 0);
537 rt2x00_set_field16(&csr5, PHY_CSR5_CCK_FLIP, 0);
538 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM_FLIP, 0);
541 rt2500usb_bbp_write(rt2x00dev, 2, r2);
542 rt2500usb_bbp_write(rt2x00dev, 14, r14);
543 rt2500usb_register_write(rt2x00dev, PHY_CSR5, csr5);
544 rt2500usb_register_write(rt2x00dev, PHY_CSR6, csr6);
547 static void rt2500usb_config_duration(struct rt2x00_dev *rt2x00dev,
548 struct rt2x00lib_conf *libconf)
552 rt2500usb_register_write(rt2x00dev, MAC_CSR10, libconf->slot_time);
553 rt2500usb_register_write(rt2x00dev, MAC_CSR11, libconf->sifs);
554 rt2500usb_register_write(rt2x00dev, MAC_CSR12, libconf->eifs);
556 rt2500usb_register_read(rt2x00dev, TXRX_CSR18, ®);
557 rt2x00_set_field16(®, TXRX_CSR18_INTERVAL,
558 libconf->conf->beacon_int * 4);
559 rt2500usb_register_write(rt2x00dev, TXRX_CSR18, reg);
562 static void rt2500usb_config(struct rt2x00_dev *rt2x00dev,
563 struct rt2x00lib_conf *libconf,
564 const unsigned int flags)
566 if (flags & CONFIG_UPDATE_PHYMODE)
567 rt2500usb_config_phymode(rt2x00dev, libconf->basic_rates);
568 if (flags & CONFIG_UPDATE_CHANNEL)
569 rt2500usb_config_channel(rt2x00dev, &libconf->rf,
570 libconf->conf->power_level);
571 if ((flags & CONFIG_UPDATE_TXPOWER) && !(flags & CONFIG_UPDATE_CHANNEL))
572 rt2500usb_config_txpower(rt2x00dev,
573 libconf->conf->power_level);
574 if (flags & CONFIG_UPDATE_ANTENNA)
575 rt2500usb_config_antenna(rt2x00dev, &libconf->ant);
576 if (flags & (CONFIG_UPDATE_SLOT_TIME | CONFIG_UPDATE_BEACON_INT))
577 rt2500usb_config_duration(rt2x00dev, libconf);
583 static void rt2500usb_link_stats(struct rt2x00_dev *rt2x00dev,
584 struct link_qual *qual)
589 * Update FCS error count from register.
591 rt2500usb_register_read(rt2x00dev, STA_CSR0, ®);
592 qual->rx_failed = rt2x00_get_field16(reg, STA_CSR0_FCS_ERROR);
595 * Update False CCA count from register.
597 rt2500usb_register_read(rt2x00dev, STA_CSR3, ®);
598 qual->false_cca = rt2x00_get_field16(reg, STA_CSR3_FALSE_CCA_ERROR);
601 static void rt2500usb_reset_tuner(struct rt2x00_dev *rt2x00dev)
606 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R24, &eeprom);
607 value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_R24_LOW);
608 rt2500usb_bbp_write(rt2x00dev, 24, value);
610 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R25, &eeprom);
611 value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_R25_LOW);
612 rt2500usb_bbp_write(rt2x00dev, 25, value);
614 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R61, &eeprom);
615 value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_R61_LOW);
616 rt2500usb_bbp_write(rt2x00dev, 61, value);
618 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_VGC, &eeprom);
619 value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_VGCUPPER);
620 rt2500usb_bbp_write(rt2x00dev, 17, value);
622 rt2x00dev->link.vgc_level = value;
625 static void rt2500usb_link_tuner(struct rt2x00_dev *rt2x00dev)
627 int rssi = rt2x00_get_link_rssi(&rt2x00dev->link);
640 * Read current r17 value, as well as the sensitivity values
641 * for the r17 register.
643 rt2500usb_bbp_read(rt2x00dev, 17, &r17);
644 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R17, &r17_sens);
646 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_VGC, &vgc_bound);
647 up_bound = rt2x00_get_field16(vgc_bound, EEPROM_BBPTUNE_VGCUPPER);
648 low_bound = rt2x00_get_field16(vgc_bound, EEPROM_BBPTUNE_VGCLOWER);
651 * If we are not associated, we should go straight to the
652 * dynamic CCA tuning.
654 if (!rt2x00dev->intf_associated)
655 goto dynamic_cca_tune;
658 * Determine the BBP tuning threshold and correctly
659 * set BBP 24, 25 and 61.
661 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE, &bbp_thresh);
662 bbp_thresh = rt2x00_get_field16(bbp_thresh, EEPROM_BBPTUNE_THRESHOLD);
664 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R24, &r24);
665 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R25, &r25);
666 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R61, &r61);
668 if ((rssi + bbp_thresh) > 0) {
669 r24 = rt2x00_get_field16(r24, EEPROM_BBPTUNE_R24_HIGH);
670 r25 = rt2x00_get_field16(r25, EEPROM_BBPTUNE_R25_HIGH);
671 r61 = rt2x00_get_field16(r61, EEPROM_BBPTUNE_R61_HIGH);
673 r24 = rt2x00_get_field16(r24, EEPROM_BBPTUNE_R24_LOW);
674 r25 = rt2x00_get_field16(r25, EEPROM_BBPTUNE_R25_LOW);
675 r61 = rt2x00_get_field16(r61, EEPROM_BBPTUNE_R61_LOW);
678 rt2500usb_bbp_write(rt2x00dev, 24, r24);
679 rt2500usb_bbp_write(rt2x00dev, 25, r25);
680 rt2500usb_bbp_write(rt2x00dev, 61, r61);
683 * A too low RSSI will cause too much false CCA which will
684 * then corrupt the R17 tuning. To remidy this the tuning should
685 * be stopped (While making sure the R17 value will not exceed limits)
689 rt2500usb_bbp_write(rt2x00dev, 17, 0x60);
694 * Special big-R17 for short distance
697 sens = rt2x00_get_field16(r17_sens, EEPROM_BBPTUNE_R17_LOW);
699 rt2500usb_bbp_write(rt2x00dev, 17, sens);
704 * Special mid-R17 for middle distance
707 sens = rt2x00_get_field16(r17_sens, EEPROM_BBPTUNE_R17_HIGH);
709 rt2500usb_bbp_write(rt2x00dev, 17, sens);
714 * Leave short or middle distance condition, restore r17
715 * to the dynamic tuning range.
719 up_bound -= (-77 - rssi);
721 if (up_bound < low_bound)
722 up_bound = low_bound;
724 if (r17 > up_bound) {
725 rt2500usb_bbp_write(rt2x00dev, 17, up_bound);
726 rt2x00dev->link.vgc_level = up_bound;
733 * R17 is inside the dynamic tuning range,
734 * start tuning the link based on the false cca counter.
736 if (rt2x00dev->link.qual.false_cca > 512 && r17 < up_bound) {
737 rt2500usb_bbp_write(rt2x00dev, 17, ++r17);
738 rt2x00dev->link.vgc_level = r17;
739 } else if (rt2x00dev->link.qual.false_cca < 100 && r17 > low_bound) {
740 rt2500usb_bbp_write(rt2x00dev, 17, --r17);
741 rt2x00dev->link.vgc_level = r17;
746 * Initialization functions.
748 static int rt2500usb_init_registers(struct rt2x00_dev *rt2x00dev)
752 rt2x00usb_vendor_request_sw(rt2x00dev, USB_DEVICE_MODE, 0x0001,
753 USB_MODE_TEST, REGISTER_TIMEOUT);
754 rt2x00usb_vendor_request_sw(rt2x00dev, USB_SINGLE_WRITE, 0x0308,
755 0x00f0, REGISTER_TIMEOUT);
757 rt2500usb_register_read(rt2x00dev, TXRX_CSR2, ®);
758 rt2x00_set_field16(®, TXRX_CSR2_DISABLE_RX, 1);
759 rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
761 rt2500usb_register_write(rt2x00dev, MAC_CSR13, 0x1111);
762 rt2500usb_register_write(rt2x00dev, MAC_CSR14, 0x1e11);
764 rt2500usb_register_read(rt2x00dev, MAC_CSR1, ®);
765 rt2x00_set_field16(®, MAC_CSR1_SOFT_RESET, 1);
766 rt2x00_set_field16(®, MAC_CSR1_BBP_RESET, 1);
767 rt2x00_set_field16(®, MAC_CSR1_HOST_READY, 0);
768 rt2500usb_register_write(rt2x00dev, MAC_CSR1, reg);
770 rt2500usb_register_read(rt2x00dev, MAC_CSR1, ®);
771 rt2x00_set_field16(®, MAC_CSR1_SOFT_RESET, 0);
772 rt2x00_set_field16(®, MAC_CSR1_BBP_RESET, 0);
773 rt2x00_set_field16(®, MAC_CSR1_HOST_READY, 0);
774 rt2500usb_register_write(rt2x00dev, MAC_CSR1, reg);
776 rt2500usb_register_read(rt2x00dev, TXRX_CSR5, ®);
777 rt2x00_set_field16(®, TXRX_CSR5_BBP_ID0, 13);
778 rt2x00_set_field16(®, TXRX_CSR5_BBP_ID0_VALID, 1);
779 rt2x00_set_field16(®, TXRX_CSR5_BBP_ID1, 12);
780 rt2x00_set_field16(®, TXRX_CSR5_BBP_ID1_VALID, 1);
781 rt2500usb_register_write(rt2x00dev, TXRX_CSR5, reg);
783 rt2500usb_register_read(rt2x00dev, TXRX_CSR6, ®);
784 rt2x00_set_field16(®, TXRX_CSR6_BBP_ID0, 10);
785 rt2x00_set_field16(®, TXRX_CSR6_BBP_ID0_VALID, 1);
786 rt2x00_set_field16(®, TXRX_CSR6_BBP_ID1, 11);
787 rt2x00_set_field16(®, TXRX_CSR6_BBP_ID1_VALID, 1);
788 rt2500usb_register_write(rt2x00dev, TXRX_CSR6, reg);
790 rt2500usb_register_read(rt2x00dev, TXRX_CSR7, ®);
791 rt2x00_set_field16(®, TXRX_CSR7_BBP_ID0, 7);
792 rt2x00_set_field16(®, TXRX_CSR7_BBP_ID0_VALID, 1);
793 rt2x00_set_field16(®, TXRX_CSR7_BBP_ID1, 6);
794 rt2x00_set_field16(®, TXRX_CSR7_BBP_ID1_VALID, 1);
795 rt2500usb_register_write(rt2x00dev, TXRX_CSR7, reg);
797 rt2500usb_register_read(rt2x00dev, TXRX_CSR8, ®);
798 rt2x00_set_field16(®, TXRX_CSR8_BBP_ID0, 5);
799 rt2x00_set_field16(®, TXRX_CSR8_BBP_ID0_VALID, 1);
800 rt2x00_set_field16(®, TXRX_CSR8_BBP_ID1, 0);
801 rt2x00_set_field16(®, TXRX_CSR8_BBP_ID1_VALID, 0);
802 rt2500usb_register_write(rt2x00dev, TXRX_CSR8, reg);
804 rt2500usb_register_read(rt2x00dev, TXRX_CSR19, ®);
805 rt2x00_set_field16(®, TXRX_CSR19_TSF_COUNT, 0);
806 rt2x00_set_field16(®, TXRX_CSR19_TSF_SYNC, 0);
807 rt2x00_set_field16(®, TXRX_CSR19_TBCN, 0);
808 rt2x00_set_field16(®, TXRX_CSR19_BEACON_GEN, 0);
809 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
811 rt2500usb_register_write(rt2x00dev, TXRX_CSR21, 0xe78f);
812 rt2500usb_register_write(rt2x00dev, MAC_CSR9, 0xff1d);
814 if (rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_AWAKE))
817 rt2500usb_register_read(rt2x00dev, MAC_CSR1, ®);
818 rt2x00_set_field16(®, MAC_CSR1_SOFT_RESET, 0);
819 rt2x00_set_field16(®, MAC_CSR1_BBP_RESET, 0);
820 rt2x00_set_field16(®, MAC_CSR1_HOST_READY, 1);
821 rt2500usb_register_write(rt2x00dev, MAC_CSR1, reg);
823 if (rt2x00_rev(&rt2x00dev->chip) >= RT2570_VERSION_C) {
824 rt2500usb_register_read(rt2x00dev, PHY_CSR2, ®);
825 rt2x00_set_field16(®, PHY_CSR2_LNA, 0);
828 rt2x00_set_field16(®, PHY_CSR2_LNA, 1);
829 rt2x00_set_field16(®, PHY_CSR2_LNA_MODE, 3);
831 rt2500usb_register_write(rt2x00dev, PHY_CSR2, reg);
833 rt2500usb_register_write(rt2x00dev, MAC_CSR11, 0x0002);
834 rt2500usb_register_write(rt2x00dev, MAC_CSR22, 0x0053);
835 rt2500usb_register_write(rt2x00dev, MAC_CSR15, 0x01ee);
836 rt2500usb_register_write(rt2x00dev, MAC_CSR16, 0x0000);
838 rt2500usb_register_read(rt2x00dev, MAC_CSR8, ®);
839 rt2x00_set_field16(®, MAC_CSR8_MAX_FRAME_UNIT,
840 rt2x00dev->rx->data_size);
841 rt2500usb_register_write(rt2x00dev, MAC_CSR8, reg);
843 rt2500usb_register_read(rt2x00dev, TXRX_CSR0, ®);
844 rt2x00_set_field16(®, TXRX_CSR0_IV_OFFSET, IEEE80211_HEADER);
845 rt2x00_set_field16(®, TXRX_CSR0_KEY_ID, 0xff);
846 rt2500usb_register_write(rt2x00dev, TXRX_CSR0, reg);
848 rt2500usb_register_read(rt2x00dev, MAC_CSR18, ®);
849 rt2x00_set_field16(®, MAC_CSR18_DELAY_AFTER_BEACON, 90);
850 rt2500usb_register_write(rt2x00dev, MAC_CSR18, reg);
852 rt2500usb_register_read(rt2x00dev, PHY_CSR4, ®);
853 rt2x00_set_field16(®, PHY_CSR4_LOW_RF_LE, 1);
854 rt2500usb_register_write(rt2x00dev, PHY_CSR4, reg);
856 rt2500usb_register_read(rt2x00dev, TXRX_CSR1, ®);
857 rt2x00_set_field16(®, TXRX_CSR1_AUTO_SEQUENCE, 1);
858 rt2500usb_register_write(rt2x00dev, TXRX_CSR1, reg);
863 static int rt2500usb_init_bbp(struct rt2x00_dev *rt2x00dev)
870 for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
871 rt2500usb_bbp_read(rt2x00dev, 0, &value);
872 if ((value != 0xff) && (value != 0x00))
873 goto continue_csr_init;
874 NOTICE(rt2x00dev, "Waiting for BBP register.\n");
875 udelay(REGISTER_BUSY_DELAY);
878 ERROR(rt2x00dev, "BBP register access failed, aborting.\n");
882 rt2500usb_bbp_write(rt2x00dev, 3, 0x02);
883 rt2500usb_bbp_write(rt2x00dev, 4, 0x19);
884 rt2500usb_bbp_write(rt2x00dev, 14, 0x1c);
885 rt2500usb_bbp_write(rt2x00dev, 15, 0x30);
886 rt2500usb_bbp_write(rt2x00dev, 16, 0xac);
887 rt2500usb_bbp_write(rt2x00dev, 18, 0x18);
888 rt2500usb_bbp_write(rt2x00dev, 19, 0xff);
889 rt2500usb_bbp_write(rt2x00dev, 20, 0x1e);
890 rt2500usb_bbp_write(rt2x00dev, 21, 0x08);
891 rt2500usb_bbp_write(rt2x00dev, 22, 0x08);
892 rt2500usb_bbp_write(rt2x00dev, 23, 0x08);
893 rt2500usb_bbp_write(rt2x00dev, 24, 0x80);
894 rt2500usb_bbp_write(rt2x00dev, 25, 0x50);
895 rt2500usb_bbp_write(rt2x00dev, 26, 0x08);
896 rt2500usb_bbp_write(rt2x00dev, 27, 0x23);
897 rt2500usb_bbp_write(rt2x00dev, 30, 0x10);
898 rt2500usb_bbp_write(rt2x00dev, 31, 0x2b);
899 rt2500usb_bbp_write(rt2x00dev, 32, 0xb9);
900 rt2500usb_bbp_write(rt2x00dev, 34, 0x12);
901 rt2500usb_bbp_write(rt2x00dev, 35, 0x50);
902 rt2500usb_bbp_write(rt2x00dev, 39, 0xc4);
903 rt2500usb_bbp_write(rt2x00dev, 40, 0x02);
904 rt2500usb_bbp_write(rt2x00dev, 41, 0x60);
905 rt2500usb_bbp_write(rt2x00dev, 53, 0x10);
906 rt2500usb_bbp_write(rt2x00dev, 54, 0x18);
907 rt2500usb_bbp_write(rt2x00dev, 56, 0x08);
908 rt2500usb_bbp_write(rt2x00dev, 57, 0x10);
909 rt2500usb_bbp_write(rt2x00dev, 58, 0x08);
910 rt2500usb_bbp_write(rt2x00dev, 61, 0x60);
911 rt2500usb_bbp_write(rt2x00dev, 62, 0x10);
912 rt2500usb_bbp_write(rt2x00dev, 75, 0xff);
914 for (i = 0; i < EEPROM_BBP_SIZE; i++) {
915 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBP_START + i, &eeprom);
917 if (eeprom != 0xffff && eeprom != 0x0000) {
918 reg_id = rt2x00_get_field16(eeprom, EEPROM_BBP_REG_ID);
919 value = rt2x00_get_field16(eeprom, EEPROM_BBP_VALUE);
920 rt2500usb_bbp_write(rt2x00dev, reg_id, value);
928 * Device state switch handlers.
930 static void rt2500usb_toggle_rx(struct rt2x00_dev *rt2x00dev,
931 enum dev_state state)
935 rt2500usb_register_read(rt2x00dev, TXRX_CSR2, ®);
936 rt2x00_set_field16(®, TXRX_CSR2_DISABLE_RX,
937 state == STATE_RADIO_RX_OFF);
938 rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
941 static int rt2500usb_enable_radio(struct rt2x00_dev *rt2x00dev)
944 * Initialize all registers.
946 if (rt2500usb_init_registers(rt2x00dev) ||
947 rt2500usb_init_bbp(rt2x00dev)) {
948 ERROR(rt2x00dev, "Register initialization failed.\n");
955 static void rt2500usb_disable_radio(struct rt2x00_dev *rt2x00dev)
957 rt2500usb_register_write(rt2x00dev, MAC_CSR13, 0x2121);
958 rt2500usb_register_write(rt2x00dev, MAC_CSR14, 0x2121);
961 * Disable synchronisation.
963 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, 0);
965 rt2x00usb_disable_radio(rt2x00dev);
968 static int rt2500usb_set_state(struct rt2x00_dev *rt2x00dev,
969 enum dev_state state)
978 put_to_sleep = (state != STATE_AWAKE);
981 rt2x00_set_field16(®, MAC_CSR17_BBP_DESIRE_STATE, state);
982 rt2x00_set_field16(®, MAC_CSR17_RF_DESIRE_STATE, state);
983 rt2x00_set_field16(®, MAC_CSR17_PUT_TO_SLEEP, put_to_sleep);
984 rt2500usb_register_write(rt2x00dev, MAC_CSR17, reg);
985 rt2x00_set_field16(®, MAC_CSR17_SET_STATE, 1);
986 rt2500usb_register_write(rt2x00dev, MAC_CSR17, reg);
989 * Device is not guaranteed to be in the requested state yet.
990 * We must wait until the register indicates that the
991 * device has entered the correct state.
993 for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
994 rt2500usb_register_read(rt2x00dev, MAC_CSR17, ®2);
995 bbp_state = rt2x00_get_field16(reg2, MAC_CSR17_BBP_CURR_STATE);
996 rf_state = rt2x00_get_field16(reg2, MAC_CSR17_RF_CURR_STATE);
997 if (bbp_state == state && rf_state == state)
999 rt2500usb_register_write(rt2x00dev, MAC_CSR17, reg);
1003 NOTICE(rt2x00dev, "Device failed to enter state %d, "
1004 "current device state: bbp %d and rf %d.\n",
1005 state, bbp_state, rf_state);
1010 static int rt2500usb_set_device_state(struct rt2x00_dev *rt2x00dev,
1011 enum dev_state state)
1016 case STATE_RADIO_ON:
1017 retval = rt2500usb_enable_radio(rt2x00dev);
1019 case STATE_RADIO_OFF:
1020 rt2500usb_disable_radio(rt2x00dev);
1022 case STATE_RADIO_RX_ON:
1023 case STATE_RADIO_RX_ON_LINK:
1024 rt2500usb_toggle_rx(rt2x00dev, STATE_RADIO_RX_ON);
1026 case STATE_RADIO_RX_OFF:
1027 case STATE_RADIO_RX_OFF_LINK:
1028 rt2500usb_toggle_rx(rt2x00dev, STATE_RADIO_RX_OFF);
1030 case STATE_DEEP_SLEEP:
1034 retval = rt2500usb_set_state(rt2x00dev, state);
1045 * TX descriptor initialization
1047 static void rt2500usb_write_tx_desc(struct rt2x00_dev *rt2x00dev,
1048 struct sk_buff *skb,
1049 struct txentry_desc *txdesc,
1050 struct ieee80211_tx_control *control)
1052 struct skb_frame_desc *skbdesc = get_skb_frame_desc(skb);
1053 __le32 *txd = skbdesc->desc;
1057 * Start writing the descriptor words.
1059 rt2x00_desc_read(txd, 1, &word);
1060 rt2x00_set_field32(&word, TXD_W1_IV_OFFSET, IEEE80211_HEADER);
1061 rt2x00_set_field32(&word, TXD_W1_AIFS, txdesc->aifs);
1062 rt2x00_set_field32(&word, TXD_W1_CWMIN, txdesc->cw_min);
1063 rt2x00_set_field32(&word, TXD_W1_CWMAX, txdesc->cw_max);
1064 rt2x00_desc_write(txd, 1, word);
1066 rt2x00_desc_read(txd, 2, &word);
1067 rt2x00_set_field32(&word, TXD_W2_PLCP_SIGNAL, txdesc->signal);
1068 rt2x00_set_field32(&word, TXD_W2_PLCP_SERVICE, txdesc->service);
1069 rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_LOW, txdesc->length_low);
1070 rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_HIGH, txdesc->length_high);
1071 rt2x00_desc_write(txd, 2, word);
1073 rt2x00_desc_read(txd, 0, &word);
1074 rt2x00_set_field32(&word, TXD_W0_RETRY_LIMIT, control->retry_limit);
1075 rt2x00_set_field32(&word, TXD_W0_MORE_FRAG,
1076 test_bit(ENTRY_TXD_MORE_FRAG, &txdesc->flags));
1077 rt2x00_set_field32(&word, TXD_W0_ACK,
1078 test_bit(ENTRY_TXD_ACK, &txdesc->flags));
1079 rt2x00_set_field32(&word, TXD_W0_TIMESTAMP,
1080 test_bit(ENTRY_TXD_REQ_TIMESTAMP, &txdesc->flags));
1081 rt2x00_set_field32(&word, TXD_W0_OFDM,
1082 test_bit(ENTRY_TXD_OFDM_RATE, &txdesc->flags));
1083 rt2x00_set_field32(&word, TXD_W0_NEW_SEQ,
1084 !!(control->flags & IEEE80211_TXCTL_FIRST_FRAGMENT));
1085 rt2x00_set_field32(&word, TXD_W0_IFS, txdesc->ifs);
1086 rt2x00_set_field32(&word, TXD_W0_DATABYTE_COUNT, skbdesc->data_len);
1087 rt2x00_set_field32(&word, TXD_W0_CIPHER, CIPHER_NONE);
1088 rt2x00_desc_write(txd, 0, word);
1091 static int rt2500usb_get_tx_data_len(struct rt2x00_dev *rt2x00dev,
1092 struct sk_buff *skb)
1097 * The length _must_ be a multiple of 2,
1098 * but it must _not_ be a multiple of the USB packet size.
1100 length = roundup(skb->len, 2);
1101 length += (2 * !(length % rt2x00dev->usb_maxpacket));
1107 * TX data initialization
1109 static void rt2500usb_kick_tx_queue(struct rt2x00_dev *rt2x00dev,
1110 const unsigned int queue)
1114 if (queue != RT2X00_BCN_QUEUE_BEACON)
1117 rt2500usb_register_read(rt2x00dev, TXRX_CSR19, ®);
1118 if (!rt2x00_get_field16(reg, TXRX_CSR19_BEACON_GEN)) {
1119 rt2x00_set_field16(®, TXRX_CSR19_TSF_COUNT, 1);
1120 rt2x00_set_field16(®, TXRX_CSR19_TBCN, 1);
1121 rt2x00_set_field16(®, TXRX_CSR19_BEACON_GEN, 1);
1123 * Beacon generation will fail initially.
1124 * To prevent this we need to register the TXRX_CSR19
1125 * register several times.
1127 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1128 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, 0);
1129 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1130 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, 0);
1131 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1136 * RX control handlers
1138 static void rt2500usb_fill_rxdone(struct queue_entry *entry,
1139 struct rxdone_entry_desc *rxdesc)
1141 struct queue_entry_priv_usb_rx *priv_rx = entry->priv_data;
1142 struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
1144 (__le32 *)(entry->skb->data +
1145 (priv_rx->urb->actual_length - entry->queue->desc_size));
1146 unsigned int offset = entry->queue->desc_size + 2;
1151 * Copy descriptor to the available headroom inside the skbuffer.
1153 skb_push(entry->skb, offset);
1154 memcpy(entry->skb->data, rxd, entry->queue->desc_size);
1155 rxd = (__le32 *)entry->skb->data;
1158 * The descriptor is now aligned to 4 bytes and thus it is
1159 * now safe to read it on all architectures.
1161 rt2x00_desc_read(rxd, 0, &word0);
1162 rt2x00_desc_read(rxd, 1, &word1);
1165 if (rt2x00_get_field32(word0, RXD_W0_CRC_ERROR))
1166 rxdesc->flags |= RX_FLAG_FAILED_FCS_CRC;
1167 if (rt2x00_get_field32(word0, RXD_W0_PHYSICAL_ERROR))
1168 rxdesc->flags |= RX_FLAG_FAILED_PLCP_CRC;
1171 * Obtain the status about this packet.
1172 * When frame was received with an OFDM bitrate,
1173 * the signal is the PLCP value. If it was received with
1174 * a CCK bitrate the signal is the rate in 100kbit/s.
1176 rxdesc->signal = rt2x00_get_field32(word1, RXD_W1_SIGNAL);
1177 rxdesc->rssi = rt2x00_get_field32(word1, RXD_W1_RSSI) -
1178 entry->queue->rt2x00dev->rssi_offset;
1179 rxdesc->size = rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT);
1181 rxdesc->dev_flags = 0;
1182 if (rt2x00_get_field32(word0, RXD_W0_OFDM))
1183 rxdesc->dev_flags |= RXDONE_SIGNAL_PLCP;
1184 if (rt2x00_get_field32(word0, RXD_W0_MY_BSS))
1185 rxdesc->dev_flags |= RXDONE_MY_BSS;
1188 * Adjust the skb memory window to the frame boundaries.
1190 skb_pull(entry->skb, offset);
1191 skb_trim(entry->skb, rxdesc->size);
1194 * Set descriptor and data pointer.
1196 skbdesc->data = entry->skb->data;
1197 skbdesc->data_len = rxdesc->size;
1198 skbdesc->desc = rxd;
1199 skbdesc->desc_len = entry->queue->desc_size;
1203 * Interrupt functions.
1205 static void rt2500usb_beacondone(struct urb *urb)
1207 struct queue_entry *entry = (struct queue_entry *)urb->context;
1208 struct queue_entry_priv_usb_bcn *priv_bcn = entry->priv_data;
1210 if (!test_bit(DEVICE_ENABLED_RADIO, &entry->queue->rt2x00dev->flags))
1214 * Check if this was the guardian beacon,
1215 * if that was the case we need to send the real beacon now.
1216 * Otherwise we should free the sk_buffer, the device
1217 * should be doing the rest of the work now.
1219 if (priv_bcn->guardian_urb == urb) {
1220 usb_submit_urb(priv_bcn->urb, GFP_ATOMIC);
1221 } else if (priv_bcn->urb == urb) {
1222 dev_kfree_skb(entry->skb);
1228 * Device probe functions.
1230 static int rt2500usb_validate_eeprom(struct rt2x00_dev *rt2x00dev)
1236 rt2x00usb_eeprom_read(rt2x00dev, rt2x00dev->eeprom, EEPROM_SIZE);
1239 * Start validation of the data that has been read.
1241 mac = rt2x00_eeprom_addr(rt2x00dev, EEPROM_MAC_ADDR_0);
1242 if (!is_valid_ether_addr(mac)) {
1243 DECLARE_MAC_BUF(macbuf);
1245 random_ether_addr(mac);
1246 EEPROM(rt2x00dev, "MAC: %s\n", print_mac(macbuf, mac));
1249 rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &word);
1250 if (word == 0xffff) {
1251 rt2x00_set_field16(&word, EEPROM_ANTENNA_NUM, 2);
1252 rt2x00_set_field16(&word, EEPROM_ANTENNA_TX_DEFAULT,
1253 ANTENNA_SW_DIVERSITY);
1254 rt2x00_set_field16(&word, EEPROM_ANTENNA_RX_DEFAULT,
1255 ANTENNA_SW_DIVERSITY);
1256 rt2x00_set_field16(&word, EEPROM_ANTENNA_LED_MODE,
1258 rt2x00_set_field16(&word, EEPROM_ANTENNA_DYN_TXAGC, 0);
1259 rt2x00_set_field16(&word, EEPROM_ANTENNA_HARDWARE_RADIO, 0);
1260 rt2x00_set_field16(&word, EEPROM_ANTENNA_RF_TYPE, RF2522);
1261 rt2x00_eeprom_write(rt2x00dev, EEPROM_ANTENNA, word);
1262 EEPROM(rt2x00dev, "Antenna: 0x%04x\n", word);
1265 rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &word);
1266 if (word == 0xffff) {
1267 rt2x00_set_field16(&word, EEPROM_NIC_CARDBUS_ACCEL, 0);
1268 rt2x00_set_field16(&word, EEPROM_NIC_DYN_BBP_TUNE, 0);
1269 rt2x00_set_field16(&word, EEPROM_NIC_CCK_TX_POWER, 0);
1270 rt2x00_eeprom_write(rt2x00dev, EEPROM_NIC, word);
1271 EEPROM(rt2x00dev, "NIC: 0x%04x\n", word);
1274 rt2x00_eeprom_read(rt2x00dev, EEPROM_CALIBRATE_OFFSET, &word);
1275 if (word == 0xffff) {
1276 rt2x00_set_field16(&word, EEPROM_CALIBRATE_OFFSET_RSSI,
1277 DEFAULT_RSSI_OFFSET);
1278 rt2x00_eeprom_write(rt2x00dev, EEPROM_CALIBRATE_OFFSET, word);
1279 EEPROM(rt2x00dev, "Calibrate offset: 0x%04x\n", word);
1282 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE, &word);
1283 if (word == 0xffff) {
1284 rt2x00_set_field16(&word, EEPROM_BBPTUNE_THRESHOLD, 45);
1285 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE, word);
1286 EEPROM(rt2x00dev, "BBPtune: 0x%04x\n", word);
1290 * Switch lower vgc bound to current BBP R17 value,
1291 * lower the value a bit for better quality.
1293 rt2500usb_bbp_read(rt2x00dev, 17, &bbp);
1296 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_VGC, &word);
1297 if (word == 0xffff) {
1298 rt2x00_set_field16(&word, EEPROM_BBPTUNE_VGCUPPER, 0x40);
1299 rt2x00_set_field16(&word, EEPROM_BBPTUNE_VGCLOWER, bbp);
1300 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_VGC, word);
1301 EEPROM(rt2x00dev, "BBPtune vgc: 0x%04x\n", word);
1304 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R17, &word);
1305 if (word == 0xffff) {
1306 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R17_LOW, 0x48);
1307 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R17_HIGH, 0x41);
1308 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R17, word);
1309 EEPROM(rt2x00dev, "BBPtune r17: 0x%04x\n", word);
1311 rt2x00_set_field16(&word, EEPROM_BBPTUNE_VGCLOWER, bbp);
1312 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_VGC, word);
1315 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R24, &word);
1316 if (word == 0xffff) {
1317 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R24_LOW, 0x40);
1318 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R24_HIGH, 0x80);
1319 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R24, word);
1320 EEPROM(rt2x00dev, "BBPtune r24: 0x%04x\n", word);
1323 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R25, &word);
1324 if (word == 0xffff) {
1325 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R25_LOW, 0x40);
1326 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R25_HIGH, 0x50);
1327 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R25, word);
1328 EEPROM(rt2x00dev, "BBPtune r25: 0x%04x\n", word);
1331 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R61, &word);
1332 if (word == 0xffff) {
1333 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R61_LOW, 0x60);
1334 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R61_HIGH, 0x6d);
1335 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R61, word);
1336 EEPROM(rt2x00dev, "BBPtune r61: 0x%04x\n", word);
1342 static int rt2500usb_init_eeprom(struct rt2x00_dev *rt2x00dev)
1349 * Read EEPROM word for configuration.
1351 rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &eeprom);
1354 * Identify RF chipset.
1356 value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RF_TYPE);
1357 rt2500usb_register_read(rt2x00dev, MAC_CSR0, ®);
1358 rt2x00_set_chip(rt2x00dev, RT2570, value, reg);
1360 if (!rt2x00_check_rev(&rt2x00dev->chip, 0)) {
1361 ERROR(rt2x00dev, "Invalid RT chipset detected.\n");
1365 if (!rt2x00_rf(&rt2x00dev->chip, RF2522) &&
1366 !rt2x00_rf(&rt2x00dev->chip, RF2523) &&
1367 !rt2x00_rf(&rt2x00dev->chip, RF2524) &&
1368 !rt2x00_rf(&rt2x00dev->chip, RF2525) &&
1369 !rt2x00_rf(&rt2x00dev->chip, RF2525E) &&
1370 !rt2x00_rf(&rt2x00dev->chip, RF5222)) {
1371 ERROR(rt2x00dev, "Invalid RF chipset detected.\n");
1376 * Identify default antenna configuration.
1378 rt2x00dev->default_ant.tx =
1379 rt2x00_get_field16(eeprom, EEPROM_ANTENNA_TX_DEFAULT);
1380 rt2x00dev->default_ant.rx =
1381 rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RX_DEFAULT);
1384 * When the eeprom indicates SW_DIVERSITY use HW_DIVERSITY instead.
1385 * I am not 100% sure about this, but the legacy drivers do not
1386 * indicate antenna swapping in software is required when
1387 * diversity is enabled.
1389 if (rt2x00dev->default_ant.tx == ANTENNA_SW_DIVERSITY)
1390 rt2x00dev->default_ant.tx = ANTENNA_HW_DIVERSITY;
1391 if (rt2x00dev->default_ant.rx == ANTENNA_SW_DIVERSITY)
1392 rt2x00dev->default_ant.rx = ANTENNA_HW_DIVERSITY;
1395 * Store led mode, for correct led behaviour.
1397 #ifdef CONFIG_RT2500USB_LEDS
1398 value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_LED_MODE);
1400 rt2x00dev->led_radio.rt2x00dev = rt2x00dev;
1401 rt2x00dev->led_radio.type = LED_TYPE_RADIO;
1402 rt2x00dev->led_radio.led_dev.brightness_set =
1403 rt2500usb_brightness_set;
1404 rt2x00dev->led_radio.led_dev.blink_set =
1405 rt2500usb_blink_set;
1406 rt2x00dev->led_radio.flags = LED_INITIALIZED;
1408 if (value == LED_MODE_TXRX_ACTIVITY) {
1409 rt2x00dev->led_qual.rt2x00dev = rt2x00dev;
1410 rt2x00dev->led_qual.type = LED_TYPE_ACTIVITY;
1411 rt2x00dev->led_qual.led_dev.brightness_set =
1412 rt2500usb_brightness_set;
1413 rt2x00dev->led_qual.led_dev.blink_set =
1414 rt2500usb_blink_set;
1415 rt2x00dev->led_qual.flags = LED_INITIALIZED;
1417 #endif /* CONFIG_RT2500USB_LEDS */
1420 * Check if the BBP tuning should be disabled.
1422 rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &eeprom);
1423 if (rt2x00_get_field16(eeprom, EEPROM_NIC_DYN_BBP_TUNE))
1424 __set_bit(CONFIG_DISABLE_LINK_TUNING, &rt2x00dev->flags);
1427 * Read the RSSI <-> dBm offset information.
1429 rt2x00_eeprom_read(rt2x00dev, EEPROM_CALIBRATE_OFFSET, &eeprom);
1430 rt2x00dev->rssi_offset =
1431 rt2x00_get_field16(eeprom, EEPROM_CALIBRATE_OFFSET_RSSI);
1437 * RF value list for RF2522
1440 static const struct rf_channel rf_vals_bg_2522[] = {
1441 { 1, 0x00002050, 0x000c1fda, 0x00000101, 0 },
1442 { 2, 0x00002050, 0x000c1fee, 0x00000101, 0 },
1443 { 3, 0x00002050, 0x000c2002, 0x00000101, 0 },
1444 { 4, 0x00002050, 0x000c2016, 0x00000101, 0 },
1445 { 5, 0x00002050, 0x000c202a, 0x00000101, 0 },
1446 { 6, 0x00002050, 0x000c203e, 0x00000101, 0 },
1447 { 7, 0x00002050, 0x000c2052, 0x00000101, 0 },
1448 { 8, 0x00002050, 0x000c2066, 0x00000101, 0 },
1449 { 9, 0x00002050, 0x000c207a, 0x00000101, 0 },
1450 { 10, 0x00002050, 0x000c208e, 0x00000101, 0 },
1451 { 11, 0x00002050, 0x000c20a2, 0x00000101, 0 },
1452 { 12, 0x00002050, 0x000c20b6, 0x00000101, 0 },
1453 { 13, 0x00002050, 0x000c20ca, 0x00000101, 0 },
1454 { 14, 0x00002050, 0x000c20fa, 0x00000101, 0 },
1458 * RF value list for RF2523
1461 static const struct rf_channel rf_vals_bg_2523[] = {
1462 { 1, 0x00022010, 0x00000c9e, 0x000e0111, 0x00000a1b },
1463 { 2, 0x00022010, 0x00000ca2, 0x000e0111, 0x00000a1b },
1464 { 3, 0x00022010, 0x00000ca6, 0x000e0111, 0x00000a1b },
1465 { 4, 0x00022010, 0x00000caa, 0x000e0111, 0x00000a1b },
1466 { 5, 0x00022010, 0x00000cae, 0x000e0111, 0x00000a1b },
1467 { 6, 0x00022010, 0x00000cb2, 0x000e0111, 0x00000a1b },
1468 { 7, 0x00022010, 0x00000cb6, 0x000e0111, 0x00000a1b },
1469 { 8, 0x00022010, 0x00000cba, 0x000e0111, 0x00000a1b },
1470 { 9, 0x00022010, 0x00000cbe, 0x000e0111, 0x00000a1b },
1471 { 10, 0x00022010, 0x00000d02, 0x000e0111, 0x00000a1b },
1472 { 11, 0x00022010, 0x00000d06, 0x000e0111, 0x00000a1b },
1473 { 12, 0x00022010, 0x00000d0a, 0x000e0111, 0x00000a1b },
1474 { 13, 0x00022010, 0x00000d0e, 0x000e0111, 0x00000a1b },
1475 { 14, 0x00022010, 0x00000d1a, 0x000e0111, 0x00000a03 },
1479 * RF value list for RF2524
1482 static const struct rf_channel rf_vals_bg_2524[] = {
1483 { 1, 0x00032020, 0x00000c9e, 0x00000101, 0x00000a1b },
1484 { 2, 0x00032020, 0x00000ca2, 0x00000101, 0x00000a1b },
1485 { 3, 0x00032020, 0x00000ca6, 0x00000101, 0x00000a1b },
1486 { 4, 0x00032020, 0x00000caa, 0x00000101, 0x00000a1b },
1487 { 5, 0x00032020, 0x00000cae, 0x00000101, 0x00000a1b },
1488 { 6, 0x00032020, 0x00000cb2, 0x00000101, 0x00000a1b },
1489 { 7, 0x00032020, 0x00000cb6, 0x00000101, 0x00000a1b },
1490 { 8, 0x00032020, 0x00000cba, 0x00000101, 0x00000a1b },
1491 { 9, 0x00032020, 0x00000cbe, 0x00000101, 0x00000a1b },
1492 { 10, 0x00032020, 0x00000d02, 0x00000101, 0x00000a1b },
1493 { 11, 0x00032020, 0x00000d06, 0x00000101, 0x00000a1b },
1494 { 12, 0x00032020, 0x00000d0a, 0x00000101, 0x00000a1b },
1495 { 13, 0x00032020, 0x00000d0e, 0x00000101, 0x00000a1b },
1496 { 14, 0x00032020, 0x00000d1a, 0x00000101, 0x00000a03 },
1500 * RF value list for RF2525
1503 static const struct rf_channel rf_vals_bg_2525[] = {
1504 { 1, 0x00022020, 0x00080c9e, 0x00060111, 0x00000a1b },
1505 { 2, 0x00022020, 0x00080ca2, 0x00060111, 0x00000a1b },
1506 { 3, 0x00022020, 0x00080ca6, 0x00060111, 0x00000a1b },
1507 { 4, 0x00022020, 0x00080caa, 0x00060111, 0x00000a1b },
1508 { 5, 0x00022020, 0x00080cae, 0x00060111, 0x00000a1b },
1509 { 6, 0x00022020, 0x00080cb2, 0x00060111, 0x00000a1b },
1510 { 7, 0x00022020, 0x00080cb6, 0x00060111, 0x00000a1b },
1511 { 8, 0x00022020, 0x00080cba, 0x00060111, 0x00000a1b },
1512 { 9, 0x00022020, 0x00080cbe, 0x00060111, 0x00000a1b },
1513 { 10, 0x00022020, 0x00080d02, 0x00060111, 0x00000a1b },
1514 { 11, 0x00022020, 0x00080d06, 0x00060111, 0x00000a1b },
1515 { 12, 0x00022020, 0x00080d0a, 0x00060111, 0x00000a1b },
1516 { 13, 0x00022020, 0x00080d0e, 0x00060111, 0x00000a1b },
1517 { 14, 0x00022020, 0x00080d1a, 0x00060111, 0x00000a03 },
1521 * RF value list for RF2525e
1524 static const struct rf_channel rf_vals_bg_2525e[] = {
1525 { 1, 0x00022010, 0x0000089a, 0x00060111, 0x00000e1b },
1526 { 2, 0x00022010, 0x0000089e, 0x00060111, 0x00000e07 },
1527 { 3, 0x00022010, 0x0000089e, 0x00060111, 0x00000e1b },
1528 { 4, 0x00022010, 0x000008a2, 0x00060111, 0x00000e07 },
1529 { 5, 0x00022010, 0x000008a2, 0x00060111, 0x00000e1b },
1530 { 6, 0x00022010, 0x000008a6, 0x00060111, 0x00000e07 },
1531 { 7, 0x00022010, 0x000008a6, 0x00060111, 0x00000e1b },
1532 { 8, 0x00022010, 0x000008aa, 0x00060111, 0x00000e07 },
1533 { 9, 0x00022010, 0x000008aa, 0x00060111, 0x00000e1b },
1534 { 10, 0x00022010, 0x000008ae, 0x00060111, 0x00000e07 },
1535 { 11, 0x00022010, 0x000008ae, 0x00060111, 0x00000e1b },
1536 { 12, 0x00022010, 0x000008b2, 0x00060111, 0x00000e07 },
1537 { 13, 0x00022010, 0x000008b2, 0x00060111, 0x00000e1b },
1538 { 14, 0x00022010, 0x000008b6, 0x00060111, 0x00000e23 },
1542 * RF value list for RF5222
1543 * Supports: 2.4 GHz & 5.2 GHz
1545 static const struct rf_channel rf_vals_5222[] = {
1546 { 1, 0x00022020, 0x00001136, 0x00000101, 0x00000a0b },
1547 { 2, 0x00022020, 0x0000113a, 0x00000101, 0x00000a0b },
1548 { 3, 0x00022020, 0x0000113e, 0x00000101, 0x00000a0b },
1549 { 4, 0x00022020, 0x00001182, 0x00000101, 0x00000a0b },
1550 { 5, 0x00022020, 0x00001186, 0x00000101, 0x00000a0b },
1551 { 6, 0x00022020, 0x0000118a, 0x00000101, 0x00000a0b },
1552 { 7, 0x00022020, 0x0000118e, 0x00000101, 0x00000a0b },
1553 { 8, 0x00022020, 0x00001192, 0x00000101, 0x00000a0b },
1554 { 9, 0x00022020, 0x00001196, 0x00000101, 0x00000a0b },
1555 { 10, 0x00022020, 0x0000119a, 0x00000101, 0x00000a0b },
1556 { 11, 0x00022020, 0x0000119e, 0x00000101, 0x00000a0b },
1557 { 12, 0x00022020, 0x000011a2, 0x00000101, 0x00000a0b },
1558 { 13, 0x00022020, 0x000011a6, 0x00000101, 0x00000a0b },
1559 { 14, 0x00022020, 0x000011ae, 0x00000101, 0x00000a1b },
1561 /* 802.11 UNI / HyperLan 2 */
1562 { 36, 0x00022010, 0x00018896, 0x00000101, 0x00000a1f },
1563 { 40, 0x00022010, 0x0001889a, 0x00000101, 0x00000a1f },
1564 { 44, 0x00022010, 0x0001889e, 0x00000101, 0x00000a1f },
1565 { 48, 0x00022010, 0x000188a2, 0x00000101, 0x00000a1f },
1566 { 52, 0x00022010, 0x000188a6, 0x00000101, 0x00000a1f },
1567 { 66, 0x00022010, 0x000188aa, 0x00000101, 0x00000a1f },
1568 { 60, 0x00022010, 0x000188ae, 0x00000101, 0x00000a1f },
1569 { 64, 0x00022010, 0x000188b2, 0x00000101, 0x00000a1f },
1571 /* 802.11 HyperLan 2 */
1572 { 100, 0x00022010, 0x00008802, 0x00000101, 0x00000a0f },
1573 { 104, 0x00022010, 0x00008806, 0x00000101, 0x00000a0f },
1574 { 108, 0x00022010, 0x0000880a, 0x00000101, 0x00000a0f },
1575 { 112, 0x00022010, 0x0000880e, 0x00000101, 0x00000a0f },
1576 { 116, 0x00022010, 0x00008812, 0x00000101, 0x00000a0f },
1577 { 120, 0x00022010, 0x00008816, 0x00000101, 0x00000a0f },
1578 { 124, 0x00022010, 0x0000881a, 0x00000101, 0x00000a0f },
1579 { 128, 0x00022010, 0x0000881e, 0x00000101, 0x00000a0f },
1580 { 132, 0x00022010, 0x00008822, 0x00000101, 0x00000a0f },
1581 { 136, 0x00022010, 0x00008826, 0x00000101, 0x00000a0f },
1584 { 140, 0x00022010, 0x0000882a, 0x00000101, 0x00000a0f },
1585 { 149, 0x00022020, 0x000090a6, 0x00000101, 0x00000a07 },
1586 { 153, 0x00022020, 0x000090ae, 0x00000101, 0x00000a07 },
1587 { 157, 0x00022020, 0x000090b6, 0x00000101, 0x00000a07 },
1588 { 161, 0x00022020, 0x000090be, 0x00000101, 0x00000a07 },
1591 static void rt2500usb_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
1593 struct hw_mode_spec *spec = &rt2x00dev->spec;
1598 * Initialize all hw fields.
1600 rt2x00dev->hw->flags =
1601 IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE |
1602 IEEE80211_HW_RX_INCLUDES_FCS |
1603 IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING;
1604 rt2x00dev->hw->extra_tx_headroom = TXD_DESC_SIZE;
1605 rt2x00dev->hw->max_signal = MAX_SIGNAL;
1606 rt2x00dev->hw->max_rssi = MAX_RX_SSI;
1607 rt2x00dev->hw->queues = 2;
1609 SET_IEEE80211_DEV(rt2x00dev->hw, &rt2x00dev_usb(rt2x00dev)->dev);
1610 SET_IEEE80211_PERM_ADDR(rt2x00dev->hw,
1611 rt2x00_eeprom_addr(rt2x00dev,
1612 EEPROM_MAC_ADDR_0));
1615 * Convert tx_power array in eeprom.
1617 txpower = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_START);
1618 for (i = 0; i < 14; i++)
1619 txpower[i] = TXPOWER_FROM_DEV(txpower[i]);
1622 * Initialize hw_mode information.
1624 spec->supported_bands = SUPPORT_BAND_2GHZ;
1625 spec->supported_rates = SUPPORT_RATE_CCK | SUPPORT_RATE_OFDM;
1626 spec->tx_power_a = NULL;
1627 spec->tx_power_bg = txpower;
1628 spec->tx_power_default = DEFAULT_TXPOWER;
1630 if (rt2x00_rf(&rt2x00dev->chip, RF2522)) {
1631 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2522);
1632 spec->channels = rf_vals_bg_2522;
1633 } else if (rt2x00_rf(&rt2x00dev->chip, RF2523)) {
1634 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2523);
1635 spec->channels = rf_vals_bg_2523;
1636 } else if (rt2x00_rf(&rt2x00dev->chip, RF2524)) {
1637 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2524);
1638 spec->channels = rf_vals_bg_2524;
1639 } else if (rt2x00_rf(&rt2x00dev->chip, RF2525)) {
1640 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2525);
1641 spec->channels = rf_vals_bg_2525;
1642 } else if (rt2x00_rf(&rt2x00dev->chip, RF2525E)) {
1643 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2525e);
1644 spec->channels = rf_vals_bg_2525e;
1645 } else if (rt2x00_rf(&rt2x00dev->chip, RF5222)) {
1646 spec->supported_bands |= SUPPORT_BAND_5GHZ;
1647 spec->num_channels = ARRAY_SIZE(rf_vals_5222);
1648 spec->channels = rf_vals_5222;
1652 static int rt2500usb_probe_hw(struct rt2x00_dev *rt2x00dev)
1657 * Allocate eeprom data.
1659 retval = rt2500usb_validate_eeprom(rt2x00dev);
1663 retval = rt2500usb_init_eeprom(rt2x00dev);
1668 * Initialize hw specifications.
1670 rt2500usb_probe_hw_mode(rt2x00dev);
1673 * This device requires the atim queue
1675 __set_bit(DRIVER_REQUIRE_ATIM_QUEUE, &rt2x00dev->flags);
1676 __set_bit(DRIVER_REQUIRE_BEACON_GUARD, &rt2x00dev->flags);
1677 __set_bit(DRIVER_REQUIRE_SCHEDULED, &rt2x00dev->flags);
1680 * Set the rssi offset.
1682 rt2x00dev->rssi_offset = DEFAULT_RSSI_OFFSET;
1688 * IEEE80211 stack callback functions.
1690 static int rt2500usb_beacon_update(struct ieee80211_hw *hw,
1691 struct sk_buff *skb,
1692 struct ieee80211_tx_control *control)
1694 struct rt2x00_dev *rt2x00dev = hw->priv;
1695 struct usb_device *usb_dev = rt2x00dev_usb_dev(rt2x00dev);
1696 struct rt2x00_intf *intf = vif_to_intf(control->vif);
1697 struct queue_entry_priv_usb_bcn *priv_bcn;
1698 struct skb_frame_desc *skbdesc;
1699 int pipe = usb_sndbulkpipe(usb_dev, 1);
1703 if (unlikely(!intf->beacon))
1706 priv_bcn = intf->beacon->priv_data;
1709 * Add the descriptor in front of the skb.
1711 skb_push(skb, intf->beacon->queue->desc_size);
1712 memset(skb->data, 0, intf->beacon->queue->desc_size);
1715 * Fill in skb descriptor
1717 skbdesc = get_skb_frame_desc(skb);
1718 memset(skbdesc, 0, sizeof(*skbdesc));
1719 skbdesc->flags |= FRAME_DESC_DRIVER_GENERATED;
1720 skbdesc->data = skb->data + intf->beacon->queue->desc_size;
1721 skbdesc->data_len = skb->len - intf->beacon->queue->desc_size;
1722 skbdesc->desc = skb->data;
1723 skbdesc->desc_len = intf->beacon->queue->desc_size;
1724 skbdesc->entry = intf->beacon;
1727 * Disable beaconing while we are reloading the beacon data,
1728 * otherwise we might be sending out invalid data.
1730 rt2500usb_register_read(rt2x00dev, TXRX_CSR19, ®);
1731 rt2x00_set_field16(®, TXRX_CSR19_TSF_COUNT, 0);
1732 rt2x00_set_field16(®, TXRX_CSR19_TBCN, 0);
1733 rt2x00_set_field16(®, TXRX_CSR19_BEACON_GEN, 0);
1734 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1737 * mac80211 doesn't provide the control->queue variable
1738 * for beacons. Set our own queue identification so
1739 * it can be used during descriptor initialization.
1741 control->queue = RT2X00_BCN_QUEUE_BEACON;
1742 rt2x00lib_write_tx_desc(rt2x00dev, skb, control);
1745 * USB devices cannot blindly pass the skb->len as the
1746 * length of the data to usb_fill_bulk_urb. Pass the skb
1747 * to the driver to determine what the length should be.
1749 length = rt2500usb_get_tx_data_len(rt2x00dev, skb);
1751 usb_fill_bulk_urb(priv_bcn->urb, usb_dev, pipe,
1752 skb->data, length, rt2500usb_beacondone,
1756 * Second we need to create the guardian byte.
1757 * We only need a single byte, so lets recycle
1758 * the 'flags' field we are not using for beacons.
1760 priv_bcn->guardian_data = 0;
1761 usb_fill_bulk_urb(priv_bcn->guardian_urb, usb_dev, pipe,
1762 &priv_bcn->guardian_data, 1, rt2500usb_beacondone,
1766 * Send out the guardian byte.
1768 usb_submit_urb(priv_bcn->guardian_urb, GFP_ATOMIC);
1771 * Enable beacon generation.
1773 rt2500usb_kick_tx_queue(rt2x00dev, control->queue);
1778 static const struct ieee80211_ops rt2500usb_mac80211_ops = {
1780 .start = rt2x00mac_start,
1781 .stop = rt2x00mac_stop,
1782 .add_interface = rt2x00mac_add_interface,
1783 .remove_interface = rt2x00mac_remove_interface,
1784 .config = rt2x00mac_config,
1785 .config_interface = rt2x00mac_config_interface,
1786 .configure_filter = rt2x00mac_configure_filter,
1787 .get_stats = rt2x00mac_get_stats,
1788 .bss_info_changed = rt2x00mac_bss_info_changed,
1789 .conf_tx = rt2x00mac_conf_tx,
1790 .get_tx_stats = rt2x00mac_get_tx_stats,
1791 .beacon_update = rt2500usb_beacon_update,
1794 static const struct rt2x00lib_ops rt2500usb_rt2x00_ops = {
1795 .probe_hw = rt2500usb_probe_hw,
1796 .initialize = rt2x00usb_initialize,
1797 .uninitialize = rt2x00usb_uninitialize,
1798 .init_rxentry = rt2x00usb_init_rxentry,
1799 .init_txentry = rt2x00usb_init_txentry,
1800 .set_device_state = rt2500usb_set_device_state,
1801 .link_stats = rt2500usb_link_stats,
1802 .reset_tuner = rt2500usb_reset_tuner,
1803 .link_tuner = rt2500usb_link_tuner,
1804 .write_tx_desc = rt2500usb_write_tx_desc,
1805 .write_tx_data = rt2x00usb_write_tx_data,
1806 .get_tx_data_len = rt2500usb_get_tx_data_len,
1807 .kick_tx_queue = rt2500usb_kick_tx_queue,
1808 .fill_rxdone = rt2500usb_fill_rxdone,
1809 .config_filter = rt2500usb_config_filter,
1810 .config_intf = rt2500usb_config_intf,
1811 .config_erp = rt2500usb_config_erp,
1812 .config = rt2500usb_config,
1815 static const struct data_queue_desc rt2500usb_queue_rx = {
1816 .entry_num = RX_ENTRIES,
1817 .data_size = DATA_FRAME_SIZE,
1818 .desc_size = RXD_DESC_SIZE,
1819 .priv_size = sizeof(struct queue_entry_priv_usb_rx),
1822 static const struct data_queue_desc rt2500usb_queue_tx = {
1823 .entry_num = TX_ENTRIES,
1824 .data_size = DATA_FRAME_SIZE,
1825 .desc_size = TXD_DESC_SIZE,
1826 .priv_size = sizeof(struct queue_entry_priv_usb_tx),
1829 static const struct data_queue_desc rt2500usb_queue_bcn = {
1830 .entry_num = BEACON_ENTRIES,
1831 .data_size = MGMT_FRAME_SIZE,
1832 .desc_size = TXD_DESC_SIZE,
1833 .priv_size = sizeof(struct queue_entry_priv_usb_bcn),
1836 static const struct data_queue_desc rt2500usb_queue_atim = {
1837 .entry_num = ATIM_ENTRIES,
1838 .data_size = DATA_FRAME_SIZE,
1839 .desc_size = TXD_DESC_SIZE,
1840 .priv_size = sizeof(struct queue_entry_priv_usb_tx),
1843 static const struct rt2x00_ops rt2500usb_ops = {
1844 .name = KBUILD_MODNAME,
1847 .eeprom_size = EEPROM_SIZE,
1849 .rx = &rt2500usb_queue_rx,
1850 .tx = &rt2500usb_queue_tx,
1851 .bcn = &rt2500usb_queue_bcn,
1852 .atim = &rt2500usb_queue_atim,
1853 .lib = &rt2500usb_rt2x00_ops,
1854 .hw = &rt2500usb_mac80211_ops,
1855 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
1856 .debugfs = &rt2500usb_rt2x00debug,
1857 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
1861 * rt2500usb module information.
1863 static struct usb_device_id rt2500usb_device_table[] = {
1865 { USB_DEVICE(0x0b05, 0x1706), USB_DEVICE_DATA(&rt2500usb_ops) },
1866 { USB_DEVICE(0x0b05, 0x1707), USB_DEVICE_DATA(&rt2500usb_ops) },
1868 { USB_DEVICE(0x050d, 0x7050), USB_DEVICE_DATA(&rt2500usb_ops) },
1869 { USB_DEVICE(0x050d, 0x7051), USB_DEVICE_DATA(&rt2500usb_ops) },
1870 { USB_DEVICE(0x050d, 0x705a), USB_DEVICE_DATA(&rt2500usb_ops) },
1872 { USB_DEVICE(0x13b1, 0x000d), USB_DEVICE_DATA(&rt2500usb_ops) },
1873 { USB_DEVICE(0x13b1, 0x0011), USB_DEVICE_DATA(&rt2500usb_ops) },
1874 { USB_DEVICE(0x13b1, 0x001a), USB_DEVICE_DATA(&rt2500usb_ops) },
1876 { USB_DEVICE(0x14b2, 0x3c02), USB_DEVICE_DATA(&rt2500usb_ops) },
1878 { USB_DEVICE(0x2001, 0x3c00), USB_DEVICE_DATA(&rt2500usb_ops) },
1880 { USB_DEVICE(0x1044, 0x8001), USB_DEVICE_DATA(&rt2500usb_ops) },
1881 { USB_DEVICE(0x1044, 0x8007), USB_DEVICE_DATA(&rt2500usb_ops) },
1883 { USB_DEVICE(0x06f8, 0xe000), USB_DEVICE_DATA(&rt2500usb_ops) },
1885 { USB_DEVICE(0x0411, 0x005e), USB_DEVICE_DATA(&rt2500usb_ops) },
1886 { USB_DEVICE(0x0411, 0x0066), USB_DEVICE_DATA(&rt2500usb_ops) },
1887 { USB_DEVICE(0x0411, 0x0067), USB_DEVICE_DATA(&rt2500usb_ops) },
1888 { USB_DEVICE(0x0411, 0x008b), USB_DEVICE_DATA(&rt2500usb_ops) },
1889 { USB_DEVICE(0x0411, 0x0097), USB_DEVICE_DATA(&rt2500usb_ops) },
1891 { USB_DEVICE(0x0db0, 0x6861), USB_DEVICE_DATA(&rt2500usb_ops) },
1892 { USB_DEVICE(0x0db0, 0x6865), USB_DEVICE_DATA(&rt2500usb_ops) },
1893 { USB_DEVICE(0x0db0, 0x6869), USB_DEVICE_DATA(&rt2500usb_ops) },
1895 { USB_DEVICE(0x148f, 0x1706), USB_DEVICE_DATA(&rt2500usb_ops) },
1896 { USB_DEVICE(0x148f, 0x2570), USB_DEVICE_DATA(&rt2500usb_ops) },
1897 { USB_DEVICE(0x148f, 0x2573), USB_DEVICE_DATA(&rt2500usb_ops) },
1898 { USB_DEVICE(0x148f, 0x9020), USB_DEVICE_DATA(&rt2500usb_ops) },
1900 { USB_DEVICE(0x0681, 0x3c06), USB_DEVICE_DATA(&rt2500usb_ops) },
1902 { USB_DEVICE(0x0707, 0xee13), USB_DEVICE_DATA(&rt2500usb_ops) },
1904 { USB_DEVICE(0x114b, 0x0110), USB_DEVICE_DATA(&rt2500usb_ops) },
1906 { USB_DEVICE(0x0eb0, 0x9020), USB_DEVICE_DATA(&rt2500usb_ops) },
1908 { USB_DEVICE(0x5a57, 0x0260), USB_DEVICE_DATA(&rt2500usb_ops) },
1912 MODULE_AUTHOR(DRV_PROJECT);
1913 MODULE_VERSION(DRV_VERSION);
1914 MODULE_DESCRIPTION("Ralink RT2500 USB Wireless LAN driver.");
1915 MODULE_SUPPORTED_DEVICE("Ralink RT2570 USB chipset based cards");
1916 MODULE_DEVICE_TABLE(usb, rt2500usb_device_table);
1917 MODULE_LICENSE("GPL");
1919 static struct usb_driver rt2500usb_driver = {
1920 .name = KBUILD_MODNAME,
1921 .id_table = rt2500usb_device_table,
1922 .probe = rt2x00usb_probe,
1923 .disconnect = rt2x00usb_disconnect,
1924 .suspend = rt2x00usb_suspend,
1925 .resume = rt2x00usb_resume,
1928 static int __init rt2500usb_init(void)
1930 return usb_register(&rt2500usb_driver);
1933 static void __exit rt2500usb_exit(void)
1935 usb_deregister(&rt2500usb_driver);
1938 module_init(rt2500usb_init);
1939 module_exit(rt2500usb_exit);