2 Copyright (C) 2004 - 2007 rt2x00 SourceForge Project
3 <http://rt2x00.serialmonkey.com>
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the
17 Free Software Foundation, Inc.,
18 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
23 Abstract: rt73usb device specific routines.
24 Supported chipsets: rt2571W & rt2671.
28 * Set enviroment defines for rt2x00.h
30 #define DRV_NAME "rt73usb"
32 #include <linux/delay.h>
33 #include <linux/etherdevice.h>
34 #include <linux/init.h>
35 #include <linux/kernel.h>
36 #include <linux/module.h>
37 #include <linux/usb.h>
40 #include "rt2x00usb.h"
45 * All access to the CSR registers will go through the methods
46 * rt73usb_register_read and rt73usb_register_write.
47 * BBP and RF register require indirect register access,
48 * and use the CSR registers BBPCSR and RFCSR to achieve this.
49 * These indirect registers work with busy bits,
50 * and we will try maximal REGISTER_BUSY_COUNT times to access
51 * the register while taking a REGISTER_BUSY_DELAY us delay
52 * between each attampt. When the busy bit is still set at that time,
53 * the access attempt is considered to have failed,
54 * and we will print an error.
56 static inline void rt73usb_register_read(const struct rt2x00_dev *rt2x00dev,
57 const unsigned int offset, u32 *value)
60 rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_READ,
61 USB_VENDOR_REQUEST_IN, offset,
62 ®, sizeof(u32), REGISTER_TIMEOUT);
63 *value = le32_to_cpu(reg);
66 static inline void rt73usb_register_multiread(const struct rt2x00_dev
68 const unsigned int offset,
69 void *value, const u32 length)
71 int timeout = REGISTER_TIMEOUT * (length / sizeof(u32));
72 rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_READ,
73 USB_VENDOR_REQUEST_IN, offset,
74 value, length, timeout);
77 static inline void rt73usb_register_write(const struct rt2x00_dev *rt2x00dev,
78 const unsigned int offset, u32 value)
80 __le32 reg = cpu_to_le32(value);
81 rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_WRITE,
82 USB_VENDOR_REQUEST_OUT, offset,
83 ®, sizeof(u32), REGISTER_TIMEOUT);
86 static inline void rt73usb_register_multiwrite(const struct rt2x00_dev
88 const unsigned int offset,
89 void *value, const u32 length)
91 int timeout = REGISTER_TIMEOUT * (length / sizeof(u32));
92 rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_WRITE,
93 USB_VENDOR_REQUEST_OUT, offset,
94 value, length, timeout);
97 static u32 rt73usb_bbp_check(const struct rt2x00_dev *rt2x00dev)
102 for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
103 rt73usb_register_read(rt2x00dev, PHY_CSR3, ®);
104 if (!rt2x00_get_field32(reg, PHY_CSR3_BUSY))
106 udelay(REGISTER_BUSY_DELAY);
112 static void rt73usb_bbp_write(const struct rt2x00_dev *rt2x00dev,
113 const unsigned int word, const u8 value)
118 * Wait until the BBP becomes ready.
120 reg = rt73usb_bbp_check(rt2x00dev);
121 if (rt2x00_get_field32(reg, PHY_CSR3_BUSY)) {
122 ERROR(rt2x00dev, "PHY_CSR3 register busy. Write failed.\n");
127 * Write the data into the BBP.
130 rt2x00_set_field32(®, PHY_CSR3_VALUE, value);
131 rt2x00_set_field32(®, PHY_CSR3_REGNUM, word);
132 rt2x00_set_field32(®, PHY_CSR3_BUSY, 1);
133 rt2x00_set_field32(®, PHY_CSR3_READ_CONTROL, 0);
135 rt73usb_register_write(rt2x00dev, PHY_CSR3, reg);
138 static void rt73usb_bbp_read(const struct rt2x00_dev *rt2x00dev,
139 const unsigned int word, u8 *value)
144 * Wait until the BBP becomes ready.
146 reg = rt73usb_bbp_check(rt2x00dev);
147 if (rt2x00_get_field32(reg, PHY_CSR3_BUSY)) {
148 ERROR(rt2x00dev, "PHY_CSR3 register busy. Read failed.\n");
153 * Write the request into the BBP.
156 rt2x00_set_field32(®, PHY_CSR3_REGNUM, word);
157 rt2x00_set_field32(®, PHY_CSR3_BUSY, 1);
158 rt2x00_set_field32(®, PHY_CSR3_READ_CONTROL, 1);
160 rt73usb_register_write(rt2x00dev, PHY_CSR3, reg);
163 * Wait until the BBP becomes ready.
165 reg = rt73usb_bbp_check(rt2x00dev);
166 if (rt2x00_get_field32(reg, PHY_CSR3_BUSY)) {
167 ERROR(rt2x00dev, "PHY_CSR3 register busy. Read failed.\n");
172 *value = rt2x00_get_field32(reg, PHY_CSR3_VALUE);
175 static void rt73usb_rf_write(const struct rt2x00_dev *rt2x00dev,
176 const unsigned int word, const u32 value)
184 for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
185 rt73usb_register_read(rt2x00dev, PHY_CSR4, ®);
186 if (!rt2x00_get_field32(reg, PHY_CSR4_BUSY))
188 udelay(REGISTER_BUSY_DELAY);
191 ERROR(rt2x00dev, "PHY_CSR4 register busy. Write failed.\n");
196 rt2x00_set_field32(®, PHY_CSR4_VALUE, value);
199 * RF5225 and RF2527 contain 21 bits per RF register value,
200 * all others contain 20 bits.
202 rt2x00_set_field32(®, PHY_CSR4_NUMBER_OF_BITS,
203 20 + !!(rt2x00_rf(&rt2x00dev->chip, RF5225) ||
204 rt2x00_rf(&rt2x00dev->chip, RF2527)));
205 rt2x00_set_field32(®, PHY_CSR4_IF_SELECT, 0);
206 rt2x00_set_field32(®, PHY_CSR4_BUSY, 1);
208 rt73usb_register_write(rt2x00dev, PHY_CSR4, reg);
209 rt2x00_rf_write(rt2x00dev, word, value);
212 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
213 #define CSR_OFFSET(__word) ( CSR_REG_BASE + ((__word) * sizeof(u32)) )
215 static void rt73usb_read_csr(const struct rt2x00_dev *rt2x00dev,
216 const unsigned int word, u32 *data)
218 rt73usb_register_read(rt2x00dev, CSR_OFFSET(word), data);
221 static void rt73usb_write_csr(const struct rt2x00_dev *rt2x00dev,
222 const unsigned int word, u32 data)
224 rt73usb_register_write(rt2x00dev, CSR_OFFSET(word), data);
227 static const struct rt2x00debug rt73usb_rt2x00debug = {
228 .owner = THIS_MODULE,
230 .read = rt73usb_read_csr,
231 .write = rt73usb_write_csr,
232 .word_size = sizeof(u32),
233 .word_count = CSR_REG_SIZE / sizeof(u32),
236 .read = rt2x00_eeprom_read,
237 .write = rt2x00_eeprom_write,
238 .word_size = sizeof(u16),
239 .word_count = EEPROM_SIZE / sizeof(u16),
242 .read = rt73usb_bbp_read,
243 .write = rt73usb_bbp_write,
244 .word_size = sizeof(u8),
245 .word_count = BBP_SIZE / sizeof(u8),
248 .read = rt2x00_rf_read,
249 .write = rt73usb_rf_write,
250 .word_size = sizeof(u32),
251 .word_count = RF_SIZE / sizeof(u32),
254 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
257 * Configuration handlers.
259 static void rt73usb_config_mac_addr(struct rt2x00_dev *rt2x00dev, __le32 *mac)
263 tmp = le32_to_cpu(mac[1]);
264 rt2x00_set_field32(&tmp, MAC_CSR3_UNICAST_TO_ME_MASK, 0xff);
265 mac[1] = cpu_to_le32(tmp);
267 rt73usb_register_multiwrite(rt2x00dev, MAC_CSR2, mac,
268 (2 * sizeof(__le32)));
271 static void rt73usb_config_bssid(struct rt2x00_dev *rt2x00dev, __le32 *bssid)
275 tmp = le32_to_cpu(bssid[1]);
276 rt2x00_set_field32(&tmp, MAC_CSR5_BSS_ID_MASK, 3);
277 bssid[1] = cpu_to_le32(tmp);
279 rt73usb_register_multiwrite(rt2x00dev, MAC_CSR4, bssid,
280 (2 * sizeof(__le32)));
283 static void rt73usb_config_type(struct rt2x00_dev *rt2x00dev, const int type,
289 * Clear current synchronisation setup.
290 * For the Beacon base registers we only need to clear
291 * the first byte since that byte contains the VALID and OWNER
292 * bits which (when set to 0) will invalidate the entire beacon.
294 rt73usb_register_write(rt2x00dev, TXRX_CSR9, 0);
295 rt73usb_register_write(rt2x00dev, HW_BEACON_BASE0, 0);
296 rt73usb_register_write(rt2x00dev, HW_BEACON_BASE1, 0);
297 rt73usb_register_write(rt2x00dev, HW_BEACON_BASE2, 0);
298 rt73usb_register_write(rt2x00dev, HW_BEACON_BASE3, 0);
301 * Enable synchronisation.
303 rt73usb_register_read(rt2x00dev, TXRX_CSR9, ®);
304 rt2x00_set_field32(®, TXRX_CSR9_TSF_TICKING, 1);
305 rt2x00_set_field32(®, TXRX_CSR9_TBTT_ENABLE, 1);
306 rt2x00_set_field32(®, TXRX_CSR9_BEACON_GEN, 0);
307 rt2x00_set_field32(®, TXRX_CSR9_TSF_SYNC, tsf_sync);
308 rt73usb_register_write(rt2x00dev, TXRX_CSR9, reg);
311 static void rt73usb_config_preamble(struct rt2x00_dev *rt2x00dev,
312 const int short_preamble,
313 const int ack_timeout,
314 const int ack_consume_time)
319 * When in atomic context, reschedule and let rt2x00lib
320 * call this function again.
323 queue_work(rt2x00dev->hw->workqueue, &rt2x00dev->config_work);
327 rt73usb_register_read(rt2x00dev, TXRX_CSR0, ®);
328 rt2x00_set_field32(®, TXRX_CSR0_RX_ACK_TIMEOUT, ack_timeout);
329 rt73usb_register_write(rt2x00dev, TXRX_CSR0, reg);
331 rt73usb_register_read(rt2x00dev, TXRX_CSR4, ®);
332 rt2x00_set_field32(®, TXRX_CSR4_AUTORESPOND_PREAMBLE,
334 rt73usb_register_write(rt2x00dev, TXRX_CSR4, reg);
337 static void rt73usb_config_phymode(struct rt2x00_dev *rt2x00dev,
338 const int basic_rate_mask)
340 rt73usb_register_write(rt2x00dev, TXRX_CSR5, basic_rate_mask);
343 static void rt73usb_config_channel(struct rt2x00_dev *rt2x00dev,
344 struct rf_channel *rf, const int txpower)
350 rt2x00_set_field32(&rf->rf3, RF3_TXPOWER, TXPOWER_TO_DEV(txpower));
351 rt2x00_set_field32(&rf->rf4, RF4_FREQ_OFFSET, rt2x00dev->freq_offset);
353 smart = !(rt2x00_rf(&rt2x00dev->chip, RF5225) ||
354 rt2x00_rf(&rt2x00dev->chip, RF2527));
356 rt73usb_bbp_read(rt2x00dev, 3, &r3);
357 rt2x00_set_field8(&r3, BBP_R3_SMART_MODE, smart);
358 rt73usb_bbp_write(rt2x00dev, 3, r3);
361 if (txpower > MAX_TXPOWER && txpower <= (MAX_TXPOWER + r94))
362 r94 += txpower - MAX_TXPOWER;
363 else if (txpower < MIN_TXPOWER && txpower >= (MIN_TXPOWER - r94))
365 rt73usb_bbp_write(rt2x00dev, 94, r94);
367 rt73usb_rf_write(rt2x00dev, 1, rf->rf1);
368 rt73usb_rf_write(rt2x00dev, 2, rf->rf2);
369 rt73usb_rf_write(rt2x00dev, 3, rf->rf3 & ~0x00000004);
370 rt73usb_rf_write(rt2x00dev, 4, rf->rf4);
372 rt73usb_rf_write(rt2x00dev, 1, rf->rf1);
373 rt73usb_rf_write(rt2x00dev, 2, rf->rf2);
374 rt73usb_rf_write(rt2x00dev, 3, rf->rf3 | 0x00000004);
375 rt73usb_rf_write(rt2x00dev, 4, rf->rf4);
377 rt73usb_rf_write(rt2x00dev, 1, rf->rf1);
378 rt73usb_rf_write(rt2x00dev, 2, rf->rf2);
379 rt73usb_rf_write(rt2x00dev, 3, rf->rf3 & ~0x00000004);
380 rt73usb_rf_write(rt2x00dev, 4, rf->rf4);
385 static void rt73usb_config_txpower(struct rt2x00_dev *rt2x00dev,
388 struct rf_channel rf;
390 rt2x00_rf_read(rt2x00dev, 1, &rf.rf1);
391 rt2x00_rf_read(rt2x00dev, 2, &rf.rf2);
392 rt2x00_rf_read(rt2x00dev, 3, &rf.rf3);
393 rt2x00_rf_read(rt2x00dev, 4, &rf.rf4);
395 rt73usb_config_channel(rt2x00dev, &rf, txpower);
398 static void rt73usb_config_antenna_5x(struct rt2x00_dev *rt2x00dev,
399 struct antenna_setup *ant)
405 rt73usb_bbp_read(rt2x00dev, 3, &r3);
406 rt73usb_bbp_read(rt2x00dev, 4, &r4);
407 rt73usb_bbp_read(rt2x00dev, 77, &r77);
409 rt2x00_set_field8(&r3, BBP_R3_SMART_MODE, 0);
412 case ANTENNA_SW_DIVERSITY:
413 case ANTENNA_HW_DIVERSITY:
414 rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 2);
415 rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END,
416 !!(rt2x00dev->curr_hwmode != HWMODE_A));
419 rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 1);
420 rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END, 0);
422 if (rt2x00dev->curr_hwmode == HWMODE_A)
423 rt2x00_set_field8(&r77, BBP_R77_PAIR, 0);
425 rt2x00_set_field8(&r77, BBP_R77_PAIR, 3);
428 rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 1);
429 rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END, 0);
431 if (rt2x00dev->curr_hwmode == HWMODE_A)
432 rt2x00_set_field8(&r77, BBP_R77_PAIR, 3);
434 rt2x00_set_field8(&r77, BBP_R77_PAIR, 0);
438 rt73usb_bbp_write(rt2x00dev, 77, r77);
439 rt73usb_bbp_write(rt2x00dev, 3, r3);
440 rt73usb_bbp_write(rt2x00dev, 4, r4);
443 static void rt73usb_config_antenna_2x(struct rt2x00_dev *rt2x00dev,
444 struct antenna_setup *ant)
450 rt73usb_bbp_read(rt2x00dev, 3, &r3);
451 rt73usb_bbp_read(rt2x00dev, 4, &r4);
452 rt73usb_bbp_read(rt2x00dev, 77, &r77);
454 rt2x00_set_field8(&r3, BBP_R3_SMART_MODE, 0);
455 rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END,
456 !test_bit(CONFIG_FRAME_TYPE, &rt2x00dev->flags));
459 case ANTENNA_SW_DIVERSITY:
460 case ANTENNA_HW_DIVERSITY:
461 rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 2);
464 rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 1);
465 rt2x00_set_field8(&r77, BBP_R77_PAIR, 3);
468 rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 1);
469 rt2x00_set_field8(&r77, BBP_R77_PAIR, 0);
473 rt73usb_bbp_write(rt2x00dev, 77, r77);
474 rt73usb_bbp_write(rt2x00dev, 3, r3);
475 rt73usb_bbp_write(rt2x00dev, 4, r4);
481 * value[0] -> non-LNA
487 static const struct antenna_sel antenna_sel_a[] = {
488 { 96, { 0x58, 0x78 } },
489 { 104, { 0x38, 0x48 } },
490 { 75, { 0xfe, 0x80 } },
491 { 86, { 0xfe, 0x80 } },
492 { 88, { 0xfe, 0x80 } },
493 { 35, { 0x60, 0x60 } },
494 { 97, { 0x58, 0x58 } },
495 { 98, { 0x58, 0x58 } },
498 static const struct antenna_sel antenna_sel_bg[] = {
499 { 96, { 0x48, 0x68 } },
500 { 104, { 0x2c, 0x3c } },
501 { 75, { 0xfe, 0x80 } },
502 { 86, { 0xfe, 0x80 } },
503 { 88, { 0xfe, 0x80 } },
504 { 35, { 0x50, 0x50 } },
505 { 97, { 0x48, 0x48 } },
506 { 98, { 0x48, 0x48 } },
509 static void rt73usb_config_antenna(struct rt2x00_dev *rt2x00dev,
510 struct antenna_setup *ant)
512 const struct antenna_sel *sel;
517 rt73usb_register_read(rt2x00dev, PHY_CSR0, ®);
519 if (rt2x00dev->curr_hwmode == HWMODE_A) {
521 lna = test_bit(CONFIG_EXTERNAL_LNA_A, &rt2x00dev->flags);
523 rt2x00_set_field32(®, PHY_CSR0_PA_PE_BG, 0);
524 rt2x00_set_field32(®, PHY_CSR0_PA_PE_A, 1);
526 sel = antenna_sel_bg;
527 lna = test_bit(CONFIG_EXTERNAL_LNA_BG, &rt2x00dev->flags);
529 rt2x00_set_field32(®, PHY_CSR0_PA_PE_BG, 1);
530 rt2x00_set_field32(®, PHY_CSR0_PA_PE_A, 0);
533 for (i = 0; i < ARRAY_SIZE(antenna_sel_a); i++)
534 rt73usb_bbp_write(rt2x00dev, sel[i].word, sel[i].value[lna]);
536 rt73usb_register_write(rt2x00dev, PHY_CSR0, reg);
538 if (rt2x00_rf(&rt2x00dev->chip, RF5226) ||
539 rt2x00_rf(&rt2x00dev->chip, RF5225))
540 rt73usb_config_antenna_5x(rt2x00dev, ant);
541 else if (rt2x00_rf(&rt2x00dev->chip, RF2528) ||
542 rt2x00_rf(&rt2x00dev->chip, RF2527))
543 rt73usb_config_antenna_2x(rt2x00dev, ant);
546 static void rt73usb_config_duration(struct rt2x00_dev *rt2x00dev,
547 struct rt2x00lib_conf *libconf)
551 rt73usb_register_read(rt2x00dev, MAC_CSR9, ®);
552 rt2x00_set_field32(®, MAC_CSR9_SLOT_TIME, libconf->slot_time);
553 rt73usb_register_write(rt2x00dev, MAC_CSR9, reg);
555 rt73usb_register_read(rt2x00dev, MAC_CSR8, ®);
556 rt2x00_set_field32(®, MAC_CSR8_SIFS, libconf->sifs);
557 rt2x00_set_field32(®, MAC_CSR8_SIFS_AFTER_RX_OFDM, 3);
558 rt2x00_set_field32(®, MAC_CSR8_EIFS, libconf->eifs);
559 rt73usb_register_write(rt2x00dev, MAC_CSR8, reg);
561 rt73usb_register_read(rt2x00dev, TXRX_CSR0, ®);
562 rt2x00_set_field32(®, TXRX_CSR0_TSF_OFFSET, IEEE80211_HEADER);
563 rt73usb_register_write(rt2x00dev, TXRX_CSR0, reg);
565 rt73usb_register_read(rt2x00dev, TXRX_CSR4, ®);
566 rt2x00_set_field32(®, TXRX_CSR4_AUTORESPOND_ENABLE, 1);
567 rt73usb_register_write(rt2x00dev, TXRX_CSR4, reg);
569 rt73usb_register_read(rt2x00dev, TXRX_CSR9, ®);
570 rt2x00_set_field32(®, TXRX_CSR9_BEACON_INTERVAL,
571 libconf->conf->beacon_int * 16);
572 rt73usb_register_write(rt2x00dev, TXRX_CSR9, reg);
575 static void rt73usb_config(struct rt2x00_dev *rt2x00dev,
576 const unsigned int flags,
577 struct rt2x00lib_conf *libconf)
579 if (flags & CONFIG_UPDATE_PHYMODE)
580 rt73usb_config_phymode(rt2x00dev, libconf->basic_rates);
581 if (flags & CONFIG_UPDATE_CHANNEL)
582 rt73usb_config_channel(rt2x00dev, &libconf->rf,
583 libconf->conf->power_level);
584 if ((flags & CONFIG_UPDATE_TXPOWER) && !(flags & CONFIG_UPDATE_CHANNEL))
585 rt73usb_config_txpower(rt2x00dev, libconf->conf->power_level);
586 if (flags & CONFIG_UPDATE_ANTENNA)
587 rt73usb_config_antenna(rt2x00dev, &libconf->ant);
588 if (flags & (CONFIG_UPDATE_SLOT_TIME | CONFIG_UPDATE_BEACON_INT))
589 rt73usb_config_duration(rt2x00dev, libconf);
595 static void rt73usb_enable_led(struct rt2x00_dev *rt2x00dev)
599 rt73usb_register_read(rt2x00dev, MAC_CSR14, ®);
600 rt2x00_set_field32(®, MAC_CSR14_ON_PERIOD, 70);
601 rt2x00_set_field32(®, MAC_CSR14_OFF_PERIOD, 30);
602 rt73usb_register_write(rt2x00dev, MAC_CSR14, reg);
604 rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_RADIO_STATUS, 1);
605 if (rt2x00dev->rx_status.phymode == MODE_IEEE80211A)
606 rt2x00_set_field16(&rt2x00dev->led_reg,
607 MCU_LEDCS_LINK_A_STATUS, 1);
609 rt2x00_set_field16(&rt2x00dev->led_reg,
610 MCU_LEDCS_LINK_BG_STATUS, 1);
612 rt2x00usb_vendor_request_sw(rt2x00dev, USB_LED_CONTROL, 0x0000,
613 rt2x00dev->led_reg, REGISTER_TIMEOUT);
616 static void rt73usb_disable_led(struct rt2x00_dev *rt2x00dev)
618 rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_RADIO_STATUS, 0);
619 rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_LINK_BG_STATUS, 0);
620 rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_LINK_A_STATUS, 0);
622 rt2x00usb_vendor_request_sw(rt2x00dev, USB_LED_CONTROL, 0x0000,
623 rt2x00dev->led_reg, REGISTER_TIMEOUT);
626 static void rt73usb_activity_led(struct rt2x00_dev *rt2x00dev, int rssi)
630 if (rt2x00dev->led_mode != LED_MODE_SIGNAL_STRENGTH)
634 * Led handling requires a positive value for the rssi,
635 * to do that correctly we need to add the correction.
637 rssi += rt2x00dev->rssi_offset;
652 rt2x00usb_vendor_request_sw(rt2x00dev, USB_LED_CONTROL, led,
653 rt2x00dev->led_reg, REGISTER_TIMEOUT);
659 static void rt73usb_link_stats(struct rt2x00_dev *rt2x00dev,
660 struct link_qual *qual)
665 * Update FCS error count from register.
667 rt73usb_register_read(rt2x00dev, STA_CSR0, ®);
668 qual->rx_failed = rt2x00_get_field32(reg, STA_CSR0_FCS_ERROR);
671 * Update False CCA count from register.
673 rt73usb_register_read(rt2x00dev, STA_CSR1, ®);
674 qual->false_cca = rt2x00_get_field32(reg, STA_CSR1_FALSE_CCA_ERROR);
677 static void rt73usb_reset_tuner(struct rt2x00_dev *rt2x00dev)
679 rt73usb_bbp_write(rt2x00dev, 17, 0x20);
680 rt2x00dev->link.vgc_level = 0x20;
683 static void rt73usb_link_tuner(struct rt2x00_dev *rt2x00dev)
685 int rssi = rt2x00_get_link_rssi(&rt2x00dev->link);
691 * Update Led strength
693 rt73usb_activity_led(rt2x00dev, rssi);
695 rt73usb_bbp_read(rt2x00dev, 17, &r17);
698 * Determine r17 bounds.
700 if (rt2x00dev->rx_status.phymode == MODE_IEEE80211A) {
704 if (test_bit(CONFIG_EXTERNAL_LNA_A, &rt2x00dev->flags)) {
712 } else if (rssi > -84) {
720 if (test_bit(CONFIG_EXTERNAL_LNA_BG, &rt2x00dev->flags)) {
727 * Special big-R17 for very short distance
731 rt73usb_bbp_write(rt2x00dev, 17, 0x60);
736 * Special big-R17 for short distance
740 rt73usb_bbp_write(rt2x00dev, 17, up_bound);
745 * Special big-R17 for middle-short distance
749 if (r17 != low_bound)
750 rt73usb_bbp_write(rt2x00dev, 17, low_bound);
755 * Special mid-R17 for middle distance
758 if (r17 != (low_bound + 0x10))
759 rt73usb_bbp_write(rt2x00dev, 17, low_bound + 0x08);
764 * Special case: Change up_bound based on the rssi.
765 * Lower up_bound when rssi is weaker then -74 dBm.
767 up_bound -= 2 * (-74 - rssi);
768 if (low_bound > up_bound)
769 up_bound = low_bound;
771 if (r17 > up_bound) {
772 rt73usb_bbp_write(rt2x00dev, 17, up_bound);
777 * r17 does not yet exceed upper limit, continue and base
778 * the r17 tuning on the false CCA count.
780 if (rt2x00dev->link.qual.false_cca > 512 && r17 < up_bound) {
784 rt73usb_bbp_write(rt2x00dev, 17, r17);
785 } else if (rt2x00dev->link.qual.false_cca < 100 && r17 > low_bound) {
789 rt73usb_bbp_write(rt2x00dev, 17, r17);
794 * Firmware name function.
796 static char *rt73usb_get_firmware_name(struct rt2x00_dev *rt2x00dev)
798 return FIRMWARE_RT2571;
802 * Initialization functions.
804 static int rt73usb_load_firmware(struct rt2x00_dev *rt2x00dev, void *data,
816 * Wait for stable hardware.
818 for (i = 0; i < 100; i++) {
819 rt73usb_register_read(rt2x00dev, MAC_CSR0, ®);
826 ERROR(rt2x00dev, "Unstable hardware.\n");
831 * Write firmware to device.
832 * We setup a seperate cache for this action,
833 * since we are going to write larger chunks of data
834 * then normally used cache size.
836 cache = kmalloc(CSR_CACHE_SIZE_FIRMWARE, GFP_KERNEL);
838 ERROR(rt2x00dev, "Failed to allocate firmware cache.\n");
842 for (i = 0; i < len; i += CSR_CACHE_SIZE_FIRMWARE) {
843 buflen = min_t(int, len - i, CSR_CACHE_SIZE_FIRMWARE);
844 timeout = REGISTER_TIMEOUT * (buflen / sizeof(u32));
846 memcpy(cache, ptr, buflen);
848 rt2x00usb_vendor_request(rt2x00dev, USB_MULTI_WRITE,
849 USB_VENDOR_REQUEST_OUT,
850 FIRMWARE_IMAGE_BASE + i, 0x0000,
851 cache, buflen, timeout);
859 * Send firmware request to device to load firmware,
860 * we need to specify a long timeout time.
862 status = rt2x00usb_vendor_request_sw(rt2x00dev, USB_DEVICE_MODE,
863 0x0000, USB_MODE_FIRMWARE,
864 REGISTER_TIMEOUT_FIRMWARE);
866 ERROR(rt2x00dev, "Failed to write Firmware to device.\n");
870 rt73usb_disable_led(rt2x00dev);
875 static int rt73usb_init_registers(struct rt2x00_dev *rt2x00dev)
879 rt73usb_register_read(rt2x00dev, TXRX_CSR0, ®);
880 rt2x00_set_field32(®, TXRX_CSR0_AUTO_TX_SEQ, 1);
881 rt2x00_set_field32(®, TXRX_CSR0_DISABLE_RX, 0);
882 rt2x00_set_field32(®, TXRX_CSR0_TX_WITHOUT_WAITING, 0);
883 rt73usb_register_write(rt2x00dev, TXRX_CSR0, reg);
885 rt73usb_register_read(rt2x00dev, TXRX_CSR1, ®);
886 rt2x00_set_field32(®, TXRX_CSR1_BBP_ID0, 47); /* CCK Signal */
887 rt2x00_set_field32(®, TXRX_CSR1_BBP_ID0_VALID, 1);
888 rt2x00_set_field32(®, TXRX_CSR1_BBP_ID1, 30); /* Rssi */
889 rt2x00_set_field32(®, TXRX_CSR1_BBP_ID1_VALID, 1);
890 rt2x00_set_field32(®, TXRX_CSR1_BBP_ID2, 42); /* OFDM Rate */
891 rt2x00_set_field32(®, TXRX_CSR1_BBP_ID2_VALID, 1);
892 rt2x00_set_field32(®, TXRX_CSR1_BBP_ID3, 30); /* Rssi */
893 rt2x00_set_field32(®, TXRX_CSR1_BBP_ID3_VALID, 1);
894 rt73usb_register_write(rt2x00dev, TXRX_CSR1, reg);
897 * CCK TXD BBP registers
899 rt73usb_register_read(rt2x00dev, TXRX_CSR2, ®);
900 rt2x00_set_field32(®, TXRX_CSR2_BBP_ID0, 13);
901 rt2x00_set_field32(®, TXRX_CSR2_BBP_ID0_VALID, 1);
902 rt2x00_set_field32(®, TXRX_CSR2_BBP_ID1, 12);
903 rt2x00_set_field32(®, TXRX_CSR2_BBP_ID1_VALID, 1);
904 rt2x00_set_field32(®, TXRX_CSR2_BBP_ID2, 11);
905 rt2x00_set_field32(®, TXRX_CSR2_BBP_ID2_VALID, 1);
906 rt2x00_set_field32(®, TXRX_CSR2_BBP_ID3, 10);
907 rt2x00_set_field32(®, TXRX_CSR2_BBP_ID3_VALID, 1);
908 rt73usb_register_write(rt2x00dev, TXRX_CSR2, reg);
911 * OFDM TXD BBP registers
913 rt73usb_register_read(rt2x00dev, TXRX_CSR3, ®);
914 rt2x00_set_field32(®, TXRX_CSR3_BBP_ID0, 7);
915 rt2x00_set_field32(®, TXRX_CSR3_BBP_ID0_VALID, 1);
916 rt2x00_set_field32(®, TXRX_CSR3_BBP_ID1, 6);
917 rt2x00_set_field32(®, TXRX_CSR3_BBP_ID1_VALID, 1);
918 rt2x00_set_field32(®, TXRX_CSR3_BBP_ID2, 5);
919 rt2x00_set_field32(®, TXRX_CSR3_BBP_ID2_VALID, 1);
920 rt73usb_register_write(rt2x00dev, TXRX_CSR3, reg);
922 rt73usb_register_read(rt2x00dev, TXRX_CSR7, ®);
923 rt2x00_set_field32(®, TXRX_CSR7_ACK_CTS_6MBS, 59);
924 rt2x00_set_field32(®, TXRX_CSR7_ACK_CTS_9MBS, 53);
925 rt2x00_set_field32(®, TXRX_CSR7_ACK_CTS_12MBS, 49);
926 rt2x00_set_field32(®, TXRX_CSR7_ACK_CTS_18MBS, 46);
927 rt73usb_register_write(rt2x00dev, TXRX_CSR7, reg);
929 rt73usb_register_read(rt2x00dev, TXRX_CSR8, ®);
930 rt2x00_set_field32(®, TXRX_CSR8_ACK_CTS_24MBS, 44);
931 rt2x00_set_field32(®, TXRX_CSR8_ACK_CTS_36MBS, 42);
932 rt2x00_set_field32(®, TXRX_CSR8_ACK_CTS_48MBS, 42);
933 rt2x00_set_field32(®, TXRX_CSR8_ACK_CTS_54MBS, 42);
934 rt73usb_register_write(rt2x00dev, TXRX_CSR8, reg);
936 rt73usb_register_write(rt2x00dev, TXRX_CSR15, 0x0000000f);
938 rt73usb_register_read(rt2x00dev, MAC_CSR6, ®);
939 rt2x00_set_field32(®, MAC_CSR6_MAX_FRAME_UNIT, 0xfff);
940 rt73usb_register_write(rt2x00dev, MAC_CSR6, reg);
942 rt73usb_register_write(rt2x00dev, MAC_CSR10, 0x00000718);
944 if (rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_AWAKE))
947 rt73usb_register_write(rt2x00dev, MAC_CSR13, 0x00007f00);
950 * Invalidate all Shared Keys (SEC_CSR0),
951 * and clear the Shared key Cipher algorithms (SEC_CSR1 & SEC_CSR5)
953 rt73usb_register_write(rt2x00dev, SEC_CSR0, 0x00000000);
954 rt73usb_register_write(rt2x00dev, SEC_CSR1, 0x00000000);
955 rt73usb_register_write(rt2x00dev, SEC_CSR5, 0x00000000);
958 if (rt2x00_rf(&rt2x00dev->chip, RF5225) ||
959 rt2x00_rf(&rt2x00dev->chip, RF2527))
960 rt2x00_set_field32(®, PHY_CSR1_RF_RPI, 1);
961 rt73usb_register_write(rt2x00dev, PHY_CSR1, reg);
963 rt73usb_register_write(rt2x00dev, PHY_CSR5, 0x00040a06);
964 rt73usb_register_write(rt2x00dev, PHY_CSR6, 0x00080606);
965 rt73usb_register_write(rt2x00dev, PHY_CSR7, 0x00000408);
967 rt73usb_register_read(rt2x00dev, AC_TXOP_CSR0, ®);
968 rt2x00_set_field32(®, AC_TXOP_CSR0_AC0_TX_OP, 0);
969 rt2x00_set_field32(®, AC_TXOP_CSR0_AC1_TX_OP, 0);
970 rt73usb_register_write(rt2x00dev, AC_TXOP_CSR0, reg);
972 rt73usb_register_read(rt2x00dev, AC_TXOP_CSR1, ®);
973 rt2x00_set_field32(®, AC_TXOP_CSR1_AC2_TX_OP, 192);
974 rt2x00_set_field32(®, AC_TXOP_CSR1_AC3_TX_OP, 48);
975 rt73usb_register_write(rt2x00dev, AC_TXOP_CSR1, reg);
977 rt73usb_register_read(rt2x00dev, MAC_CSR9, ®);
978 rt2x00_set_field32(®, MAC_CSR9_CW_SELECT, 0);
979 rt73usb_register_write(rt2x00dev, MAC_CSR9, reg);
982 * We must clear the error counters.
983 * These registers are cleared on read,
984 * so we may pass a useless variable to store the value.
986 rt73usb_register_read(rt2x00dev, STA_CSR0, ®);
987 rt73usb_register_read(rt2x00dev, STA_CSR1, ®);
988 rt73usb_register_read(rt2x00dev, STA_CSR2, ®);
991 * Reset MAC and BBP registers.
993 rt73usb_register_read(rt2x00dev, MAC_CSR1, ®);
994 rt2x00_set_field32(®, MAC_CSR1_SOFT_RESET, 1);
995 rt2x00_set_field32(®, MAC_CSR1_BBP_RESET, 1);
996 rt73usb_register_write(rt2x00dev, MAC_CSR1, reg);
998 rt73usb_register_read(rt2x00dev, MAC_CSR1, ®);
999 rt2x00_set_field32(®, MAC_CSR1_SOFT_RESET, 0);
1000 rt2x00_set_field32(®, MAC_CSR1_BBP_RESET, 0);
1001 rt73usb_register_write(rt2x00dev, MAC_CSR1, reg);
1003 rt73usb_register_read(rt2x00dev, MAC_CSR1, ®);
1004 rt2x00_set_field32(®, MAC_CSR1_HOST_READY, 1);
1005 rt73usb_register_write(rt2x00dev, MAC_CSR1, reg);
1010 static int rt73usb_init_bbp(struct rt2x00_dev *rt2x00dev)
1017 for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
1018 rt73usb_bbp_read(rt2x00dev, 0, &value);
1019 if ((value != 0xff) && (value != 0x00))
1020 goto continue_csr_init;
1021 NOTICE(rt2x00dev, "Waiting for BBP register.\n");
1022 udelay(REGISTER_BUSY_DELAY);
1025 ERROR(rt2x00dev, "BBP register access failed, aborting.\n");
1029 rt73usb_bbp_write(rt2x00dev, 3, 0x80);
1030 rt73usb_bbp_write(rt2x00dev, 15, 0x30);
1031 rt73usb_bbp_write(rt2x00dev, 21, 0xc8);
1032 rt73usb_bbp_write(rt2x00dev, 22, 0x38);
1033 rt73usb_bbp_write(rt2x00dev, 23, 0x06);
1034 rt73usb_bbp_write(rt2x00dev, 24, 0xfe);
1035 rt73usb_bbp_write(rt2x00dev, 25, 0x0a);
1036 rt73usb_bbp_write(rt2x00dev, 26, 0x0d);
1037 rt73usb_bbp_write(rt2x00dev, 32, 0x0b);
1038 rt73usb_bbp_write(rt2x00dev, 34, 0x12);
1039 rt73usb_bbp_write(rt2x00dev, 37, 0x07);
1040 rt73usb_bbp_write(rt2x00dev, 39, 0xf8);
1041 rt73usb_bbp_write(rt2x00dev, 41, 0x60);
1042 rt73usb_bbp_write(rt2x00dev, 53, 0x10);
1043 rt73usb_bbp_write(rt2x00dev, 54, 0x18);
1044 rt73usb_bbp_write(rt2x00dev, 60, 0x10);
1045 rt73usb_bbp_write(rt2x00dev, 61, 0x04);
1046 rt73usb_bbp_write(rt2x00dev, 62, 0x04);
1047 rt73usb_bbp_write(rt2x00dev, 75, 0xfe);
1048 rt73usb_bbp_write(rt2x00dev, 86, 0xfe);
1049 rt73usb_bbp_write(rt2x00dev, 88, 0xfe);
1050 rt73usb_bbp_write(rt2x00dev, 90, 0x0f);
1051 rt73usb_bbp_write(rt2x00dev, 99, 0x00);
1052 rt73usb_bbp_write(rt2x00dev, 102, 0x16);
1053 rt73usb_bbp_write(rt2x00dev, 107, 0x04);
1055 DEBUG(rt2x00dev, "Start initialization from EEPROM...\n");
1056 for (i = 0; i < EEPROM_BBP_SIZE; i++) {
1057 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBP_START + i, &eeprom);
1059 if (eeprom != 0xffff && eeprom != 0x0000) {
1060 reg_id = rt2x00_get_field16(eeprom, EEPROM_BBP_REG_ID);
1061 value = rt2x00_get_field16(eeprom, EEPROM_BBP_VALUE);
1062 DEBUG(rt2x00dev, "BBP: 0x%02x, value: 0x%02x.\n",
1064 rt73usb_bbp_write(rt2x00dev, reg_id, value);
1067 DEBUG(rt2x00dev, "...End initialization from EEPROM.\n");
1073 * Device state switch handlers.
1075 static void rt73usb_toggle_rx(struct rt2x00_dev *rt2x00dev,
1076 enum dev_state state)
1080 rt73usb_register_read(rt2x00dev, TXRX_CSR0, ®);
1081 rt2x00_set_field32(®, TXRX_CSR0_DISABLE_RX,
1082 state == STATE_RADIO_RX_OFF);
1083 rt73usb_register_write(rt2x00dev, TXRX_CSR0, reg);
1086 static int rt73usb_enable_radio(struct rt2x00_dev *rt2x00dev)
1089 * Initialize all registers.
1091 if (rt73usb_init_registers(rt2x00dev) ||
1092 rt73usb_init_bbp(rt2x00dev)) {
1093 ERROR(rt2x00dev, "Register initialization failed.\n");
1097 rt2x00usb_enable_radio(rt2x00dev);
1102 rt73usb_enable_led(rt2x00dev);
1107 static void rt73usb_disable_radio(struct rt2x00_dev *rt2x00dev)
1112 rt73usb_disable_led(rt2x00dev);
1114 rt73usb_register_write(rt2x00dev, MAC_CSR10, 0x00001818);
1117 * Disable synchronisation.
1119 rt73usb_register_write(rt2x00dev, TXRX_CSR9, 0);
1121 rt2x00usb_disable_radio(rt2x00dev);
1124 static int rt73usb_set_state(struct rt2x00_dev *rt2x00dev, enum dev_state state)
1131 put_to_sleep = (state != STATE_AWAKE);
1133 rt73usb_register_read(rt2x00dev, MAC_CSR12, ®);
1134 rt2x00_set_field32(®, MAC_CSR12_FORCE_WAKEUP, !put_to_sleep);
1135 rt2x00_set_field32(®, MAC_CSR12_PUT_TO_SLEEP, put_to_sleep);
1136 rt73usb_register_write(rt2x00dev, MAC_CSR12, reg);
1139 * Device is not guaranteed to be in the requested state yet.
1140 * We must wait until the register indicates that the
1141 * device has entered the correct state.
1143 for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
1144 rt73usb_register_read(rt2x00dev, MAC_CSR12, ®);
1146 rt2x00_get_field32(reg, MAC_CSR12_BBP_CURRENT_STATE);
1147 if (current_state == !put_to_sleep)
1152 NOTICE(rt2x00dev, "Device failed to enter state %d, "
1153 "current device state %d.\n", !put_to_sleep, current_state);
1158 static int rt73usb_set_device_state(struct rt2x00_dev *rt2x00dev,
1159 enum dev_state state)
1164 case STATE_RADIO_ON:
1165 retval = rt73usb_enable_radio(rt2x00dev);
1167 case STATE_RADIO_OFF:
1168 rt73usb_disable_radio(rt2x00dev);
1170 case STATE_RADIO_RX_ON:
1171 case STATE_RADIO_RX_OFF:
1172 rt73usb_toggle_rx(rt2x00dev, state);
1174 case STATE_DEEP_SLEEP:
1178 retval = rt73usb_set_state(rt2x00dev, state);
1189 * TX descriptor initialization
1191 static void rt73usb_write_tx_desc(struct rt2x00_dev *rt2x00dev,
1192 struct data_desc *txd,
1193 struct txdata_entry_desc *desc,
1194 struct ieee80211_hdr *ieee80211hdr,
1195 unsigned int length,
1196 struct ieee80211_tx_control *control)
1201 * Start writing the descriptor words.
1203 rt2x00_desc_read(txd, 1, &word);
1204 rt2x00_set_field32(&word, TXD_W1_HOST_Q_ID, desc->queue);
1205 rt2x00_set_field32(&word, TXD_W1_AIFSN, desc->aifs);
1206 rt2x00_set_field32(&word, TXD_W1_CWMIN, desc->cw_min);
1207 rt2x00_set_field32(&word, TXD_W1_CWMAX, desc->cw_max);
1208 rt2x00_set_field32(&word, TXD_W1_IV_OFFSET, IEEE80211_HEADER);
1209 rt2x00_set_field32(&word, TXD_W1_HW_SEQUENCE, 1);
1210 rt2x00_desc_write(txd, 1, word);
1212 rt2x00_desc_read(txd, 2, &word);
1213 rt2x00_set_field32(&word, TXD_W2_PLCP_SIGNAL, desc->signal);
1214 rt2x00_set_field32(&word, TXD_W2_PLCP_SERVICE, desc->service);
1215 rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_LOW, desc->length_low);
1216 rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_HIGH, desc->length_high);
1217 rt2x00_desc_write(txd, 2, word);
1219 rt2x00_desc_read(txd, 5, &word);
1220 rt2x00_set_field32(&word, TXD_W5_TX_POWER,
1221 TXPOWER_TO_DEV(control->power_level));
1222 rt2x00_set_field32(&word, TXD_W5_WAITING_DMA_DONE_INT, 1);
1223 rt2x00_desc_write(txd, 5, word);
1225 rt2x00_desc_read(txd, 0, &word);
1226 rt2x00_set_field32(&word, TXD_W0_BURST,
1227 test_bit(ENTRY_TXD_BURST, &desc->flags));
1228 rt2x00_set_field32(&word, TXD_W0_VALID, 1);
1229 rt2x00_set_field32(&word, TXD_W0_MORE_FRAG,
1230 test_bit(ENTRY_TXD_MORE_FRAG, &desc->flags));
1231 rt2x00_set_field32(&word, TXD_W0_ACK,
1232 !(control->flags & IEEE80211_TXCTL_NO_ACK));
1233 rt2x00_set_field32(&word, TXD_W0_TIMESTAMP,
1234 test_bit(ENTRY_TXD_REQ_TIMESTAMP, &desc->flags));
1235 rt2x00_set_field32(&word, TXD_W0_OFDM,
1236 test_bit(ENTRY_TXD_OFDM_RATE, &desc->flags));
1237 rt2x00_set_field32(&word, TXD_W0_IFS, desc->ifs);
1238 rt2x00_set_field32(&word, TXD_W0_RETRY_MODE,
1240 IEEE80211_TXCTL_LONG_RETRY_LIMIT));
1241 rt2x00_set_field32(&word, TXD_W0_TKIP_MIC, 0);
1242 rt2x00_set_field32(&word, TXD_W0_DATABYTE_COUNT, length);
1243 rt2x00_set_field32(&word, TXD_W0_BURST2,
1244 test_bit(ENTRY_TXD_BURST, &desc->flags));
1245 rt2x00_set_field32(&word, TXD_W0_CIPHER_ALG, CIPHER_NONE);
1246 rt2x00_desc_write(txd, 0, word);
1249 static int rt73usb_get_tx_data_len(struct rt2x00_dev *rt2x00dev,
1250 struct sk_buff *skb)
1255 * The length _must_ be a multiple of 4,
1256 * but it must _not_ be a multiple of the USB packet size.
1258 length = roundup(skb->len, 4);
1259 length += (4 * !(length % rt2x00dev->usb_maxpacket));
1265 * TX data initialization
1267 static void rt73usb_kick_tx_queue(struct rt2x00_dev *rt2x00dev,
1272 if (queue != IEEE80211_TX_QUEUE_BEACON)
1276 * For Wi-Fi faily generated beacons between participating stations.
1277 * Set TBTT phase adaptive adjustment step to 8us (default 16us)
1279 rt73usb_register_write(rt2x00dev, TXRX_CSR10, 0x00001008);
1281 rt73usb_register_read(rt2x00dev, TXRX_CSR9, ®);
1282 if (!rt2x00_get_field32(reg, TXRX_CSR9_BEACON_GEN)) {
1283 rt2x00_set_field32(®, TXRX_CSR9_BEACON_GEN, 1);
1284 rt73usb_register_write(rt2x00dev, TXRX_CSR9, reg);
1289 * RX control handlers
1291 static int rt73usb_agc_to_rssi(struct rt2x00_dev *rt2x00dev, int rxd_w1)
1297 lna = rt2x00_get_field32(rxd_w1, RXD_W1_RSSI_LNA);
1312 if (rt2x00dev->rx_status.phymode == MODE_IEEE80211A) {
1313 if (test_bit(CONFIG_EXTERNAL_LNA_A, &rt2x00dev->flags)) {
1314 if (lna == 3 || lna == 2)
1323 rt2x00_eeprom_read(rt2x00dev, EEPROM_RSSI_OFFSET_A, &eeprom);
1324 offset -= rt2x00_get_field16(eeprom, EEPROM_RSSI_OFFSET_A_1);
1326 if (test_bit(CONFIG_EXTERNAL_LNA_BG, &rt2x00dev->flags))
1329 rt2x00_eeprom_read(rt2x00dev, EEPROM_RSSI_OFFSET_BG, &eeprom);
1330 offset -= rt2x00_get_field16(eeprom, EEPROM_RSSI_OFFSET_BG_1);
1333 return rt2x00_get_field32(rxd_w1, RXD_W1_RSSI_AGC) * 2 - offset;
1336 static void rt73usb_fill_rxdone(struct data_entry *entry,
1337 struct rxdata_entry_desc *desc)
1339 struct data_desc *rxd = (struct data_desc *)entry->skb->data;
1343 rt2x00_desc_read(rxd, 0, &word0);
1344 rt2x00_desc_read(rxd, 1, &word1);
1347 if (rt2x00_get_field32(word0, RXD_W0_CRC_ERROR))
1348 desc->flags |= RX_FLAG_FAILED_FCS_CRC;
1351 * Obtain the status about this packet.
1353 desc->signal = rt2x00_get_field32(word1, RXD_W1_SIGNAL);
1354 desc->rssi = rt73usb_agc_to_rssi(entry->ring->rt2x00dev, word1);
1355 desc->ofdm = rt2x00_get_field32(word0, RXD_W0_OFDM);
1356 desc->size = rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT);
1359 * Pull the skb to clear the descriptor area.
1361 skb_pull(entry->skb, entry->ring->desc_size);
1367 * Device probe functions.
1369 static int rt73usb_validate_eeprom(struct rt2x00_dev *rt2x00dev)
1375 rt2x00usb_eeprom_read(rt2x00dev, rt2x00dev->eeprom, EEPROM_SIZE);
1378 * Start validation of the data that has been read.
1380 mac = rt2x00_eeprom_addr(rt2x00dev, EEPROM_MAC_ADDR_0);
1381 if (!is_valid_ether_addr(mac)) {
1382 DECLARE_MAC_BUF(macbuf);
1384 random_ether_addr(mac);
1385 EEPROM(rt2x00dev, "MAC: %s\n", print_mac(macbuf, mac));
1388 rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &word);
1389 if (word == 0xffff) {
1390 rt2x00_set_field16(&word, EEPROM_ANTENNA_NUM, 2);
1391 rt2x00_set_field16(&word, EEPROM_ANTENNA_TX_DEFAULT,
1393 rt2x00_set_field16(&word, EEPROM_ANTENNA_RX_DEFAULT,
1395 rt2x00_set_field16(&word, EEPROM_ANTENNA_FRAME_TYPE, 0);
1396 rt2x00_set_field16(&word, EEPROM_ANTENNA_DYN_TXAGC, 0);
1397 rt2x00_set_field16(&word, EEPROM_ANTENNA_HARDWARE_RADIO, 0);
1398 rt2x00_set_field16(&word, EEPROM_ANTENNA_RF_TYPE, RF5226);
1399 rt2x00_eeprom_write(rt2x00dev, EEPROM_ANTENNA, word);
1400 EEPROM(rt2x00dev, "Antenna: 0x%04x\n", word);
1403 rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &word);
1404 if (word == 0xffff) {
1405 rt2x00_set_field16(&word, EEPROM_NIC_EXTERNAL_LNA, 0);
1406 rt2x00_eeprom_write(rt2x00dev, EEPROM_NIC, word);
1407 EEPROM(rt2x00dev, "NIC: 0x%04x\n", word);
1410 rt2x00_eeprom_read(rt2x00dev, EEPROM_LED, &word);
1411 if (word == 0xffff) {
1412 rt2x00_set_field16(&word, EEPROM_LED_POLARITY_RDY_G, 0);
1413 rt2x00_set_field16(&word, EEPROM_LED_POLARITY_RDY_A, 0);
1414 rt2x00_set_field16(&word, EEPROM_LED_POLARITY_ACT, 0);
1415 rt2x00_set_field16(&word, EEPROM_LED_POLARITY_GPIO_0, 0);
1416 rt2x00_set_field16(&word, EEPROM_LED_POLARITY_GPIO_1, 0);
1417 rt2x00_set_field16(&word, EEPROM_LED_POLARITY_GPIO_2, 0);
1418 rt2x00_set_field16(&word, EEPROM_LED_POLARITY_GPIO_3, 0);
1419 rt2x00_set_field16(&word, EEPROM_LED_POLARITY_GPIO_4, 0);
1420 rt2x00_set_field16(&word, EEPROM_LED_LED_MODE,
1422 rt2x00_eeprom_write(rt2x00dev, EEPROM_LED, word);
1423 EEPROM(rt2x00dev, "Led: 0x%04x\n", word);
1426 rt2x00_eeprom_read(rt2x00dev, EEPROM_FREQ, &word);
1427 if (word == 0xffff) {
1428 rt2x00_set_field16(&word, EEPROM_FREQ_OFFSET, 0);
1429 rt2x00_set_field16(&word, EEPROM_FREQ_SEQ, 0);
1430 rt2x00_eeprom_write(rt2x00dev, EEPROM_FREQ, word);
1431 EEPROM(rt2x00dev, "Freq: 0x%04x\n", word);
1434 rt2x00_eeprom_read(rt2x00dev, EEPROM_RSSI_OFFSET_BG, &word);
1435 if (word == 0xffff) {
1436 rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_BG_1, 0);
1437 rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_BG_2, 0);
1438 rt2x00_eeprom_write(rt2x00dev, EEPROM_RSSI_OFFSET_BG, word);
1439 EEPROM(rt2x00dev, "RSSI OFFSET BG: 0x%04x\n", word);
1441 value = rt2x00_get_field16(word, EEPROM_RSSI_OFFSET_BG_1);
1442 if (value < -10 || value > 10)
1443 rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_BG_1, 0);
1444 value = rt2x00_get_field16(word, EEPROM_RSSI_OFFSET_BG_2);
1445 if (value < -10 || value > 10)
1446 rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_BG_2, 0);
1447 rt2x00_eeprom_write(rt2x00dev, EEPROM_RSSI_OFFSET_BG, word);
1450 rt2x00_eeprom_read(rt2x00dev, EEPROM_RSSI_OFFSET_A, &word);
1451 if (word == 0xffff) {
1452 rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_A_1, 0);
1453 rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_A_2, 0);
1454 rt2x00_eeprom_write(rt2x00dev, EEPROM_RSSI_OFFSET_A, word);
1455 EEPROM(rt2x00dev, "RSSI OFFSET BG: 0x%04x\n", word);
1457 value = rt2x00_get_field16(word, EEPROM_RSSI_OFFSET_A_1);
1458 if (value < -10 || value > 10)
1459 rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_A_1, 0);
1460 value = rt2x00_get_field16(word, EEPROM_RSSI_OFFSET_A_2);
1461 if (value < -10 || value > 10)
1462 rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_A_2, 0);
1463 rt2x00_eeprom_write(rt2x00dev, EEPROM_RSSI_OFFSET_A, word);
1469 static int rt73usb_init_eeprom(struct rt2x00_dev *rt2x00dev)
1476 * Read EEPROM word for configuration.
1478 rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &eeprom);
1481 * Identify RF chipset.
1483 value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RF_TYPE);
1484 rt73usb_register_read(rt2x00dev, MAC_CSR0, ®);
1485 rt2x00_set_chip(rt2x00dev, RT2571, value, reg);
1487 if (!rt2x00_check_rev(&rt2x00dev->chip, 0x25730)) {
1488 ERROR(rt2x00dev, "Invalid RT chipset detected.\n");
1492 if (!rt2x00_rf(&rt2x00dev->chip, RF5226) &&
1493 !rt2x00_rf(&rt2x00dev->chip, RF2528) &&
1494 !rt2x00_rf(&rt2x00dev->chip, RF5225) &&
1495 !rt2x00_rf(&rt2x00dev->chip, RF2527)) {
1496 ERROR(rt2x00dev, "Invalid RF chipset detected.\n");
1501 * Identify default antenna configuration.
1503 rt2x00dev->default_ant.tx =
1504 rt2x00_get_field16(eeprom, EEPROM_ANTENNA_TX_DEFAULT);
1505 rt2x00dev->default_ant.rx =
1506 rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RX_DEFAULT);
1509 * Read the Frame type.
1511 if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_FRAME_TYPE))
1512 __set_bit(CONFIG_FRAME_TYPE, &rt2x00dev->flags);
1515 * Read frequency offset.
1517 rt2x00_eeprom_read(rt2x00dev, EEPROM_FREQ, &eeprom);
1518 rt2x00dev->freq_offset = rt2x00_get_field16(eeprom, EEPROM_FREQ_OFFSET);
1521 * Read external LNA informations.
1523 rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &eeprom);
1525 if (rt2x00_get_field16(eeprom, EEPROM_NIC_EXTERNAL_LNA)) {
1526 __set_bit(CONFIG_EXTERNAL_LNA_A, &rt2x00dev->flags);
1527 __set_bit(CONFIG_EXTERNAL_LNA_BG, &rt2x00dev->flags);
1531 * Store led settings, for correct led behaviour.
1533 rt2x00_eeprom_read(rt2x00dev, EEPROM_LED, &eeprom);
1535 rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_LED_MODE,
1536 rt2x00dev->led_mode);
1537 rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_POLARITY_GPIO_0,
1538 rt2x00_get_field16(eeprom,
1539 EEPROM_LED_POLARITY_GPIO_0));
1540 rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_POLARITY_GPIO_1,
1541 rt2x00_get_field16(eeprom,
1542 EEPROM_LED_POLARITY_GPIO_1));
1543 rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_POLARITY_GPIO_2,
1544 rt2x00_get_field16(eeprom,
1545 EEPROM_LED_POLARITY_GPIO_2));
1546 rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_POLARITY_GPIO_3,
1547 rt2x00_get_field16(eeprom,
1548 EEPROM_LED_POLARITY_GPIO_3));
1549 rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_POLARITY_GPIO_4,
1550 rt2x00_get_field16(eeprom,
1551 EEPROM_LED_POLARITY_GPIO_4));
1552 rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_POLARITY_ACT,
1553 rt2x00_get_field16(eeprom, EEPROM_LED_POLARITY_ACT));
1554 rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_POLARITY_READY_BG,
1555 rt2x00_get_field16(eeprom,
1556 EEPROM_LED_POLARITY_RDY_G));
1557 rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_POLARITY_READY_A,
1558 rt2x00_get_field16(eeprom,
1559 EEPROM_LED_POLARITY_RDY_A));
1565 * RF value list for RF2528
1568 static const struct rf_channel rf_vals_bg_2528[] = {
1569 { 1, 0x00002c0c, 0x00000786, 0x00068255, 0x000fea0b },
1570 { 2, 0x00002c0c, 0x00000786, 0x00068255, 0x000fea1f },
1571 { 3, 0x00002c0c, 0x0000078a, 0x00068255, 0x000fea0b },
1572 { 4, 0x00002c0c, 0x0000078a, 0x00068255, 0x000fea1f },
1573 { 5, 0x00002c0c, 0x0000078e, 0x00068255, 0x000fea0b },
1574 { 6, 0x00002c0c, 0x0000078e, 0x00068255, 0x000fea1f },
1575 { 7, 0x00002c0c, 0x00000792, 0x00068255, 0x000fea0b },
1576 { 8, 0x00002c0c, 0x00000792, 0x00068255, 0x000fea1f },
1577 { 9, 0x00002c0c, 0x00000796, 0x00068255, 0x000fea0b },
1578 { 10, 0x00002c0c, 0x00000796, 0x00068255, 0x000fea1f },
1579 { 11, 0x00002c0c, 0x0000079a, 0x00068255, 0x000fea0b },
1580 { 12, 0x00002c0c, 0x0000079a, 0x00068255, 0x000fea1f },
1581 { 13, 0x00002c0c, 0x0000079e, 0x00068255, 0x000fea0b },
1582 { 14, 0x00002c0c, 0x000007a2, 0x00068255, 0x000fea13 },
1586 * RF value list for RF5226
1587 * Supports: 2.4 GHz & 5.2 GHz
1589 static const struct rf_channel rf_vals_5226[] = {
1590 { 1, 0x00002c0c, 0x00000786, 0x00068255, 0x000fea0b },
1591 { 2, 0x00002c0c, 0x00000786, 0x00068255, 0x000fea1f },
1592 { 3, 0x00002c0c, 0x0000078a, 0x00068255, 0x000fea0b },
1593 { 4, 0x00002c0c, 0x0000078a, 0x00068255, 0x000fea1f },
1594 { 5, 0x00002c0c, 0x0000078e, 0x00068255, 0x000fea0b },
1595 { 6, 0x00002c0c, 0x0000078e, 0x00068255, 0x000fea1f },
1596 { 7, 0x00002c0c, 0x00000792, 0x00068255, 0x000fea0b },
1597 { 8, 0x00002c0c, 0x00000792, 0x00068255, 0x000fea1f },
1598 { 9, 0x00002c0c, 0x00000796, 0x00068255, 0x000fea0b },
1599 { 10, 0x00002c0c, 0x00000796, 0x00068255, 0x000fea1f },
1600 { 11, 0x00002c0c, 0x0000079a, 0x00068255, 0x000fea0b },
1601 { 12, 0x00002c0c, 0x0000079a, 0x00068255, 0x000fea1f },
1602 { 13, 0x00002c0c, 0x0000079e, 0x00068255, 0x000fea0b },
1603 { 14, 0x00002c0c, 0x000007a2, 0x00068255, 0x000fea13 },
1605 /* 802.11 UNI / HyperLan 2 */
1606 { 36, 0x00002c0c, 0x0000099a, 0x00098255, 0x000fea23 },
1607 { 40, 0x00002c0c, 0x000009a2, 0x00098255, 0x000fea03 },
1608 { 44, 0x00002c0c, 0x000009a6, 0x00098255, 0x000fea0b },
1609 { 48, 0x00002c0c, 0x000009aa, 0x00098255, 0x000fea13 },
1610 { 52, 0x00002c0c, 0x000009ae, 0x00098255, 0x000fea1b },
1611 { 56, 0x00002c0c, 0x000009b2, 0x00098255, 0x000fea23 },
1612 { 60, 0x00002c0c, 0x000009ba, 0x00098255, 0x000fea03 },
1613 { 64, 0x00002c0c, 0x000009be, 0x00098255, 0x000fea0b },
1615 /* 802.11 HyperLan 2 */
1616 { 100, 0x00002c0c, 0x00000a2a, 0x000b8255, 0x000fea03 },
1617 { 104, 0x00002c0c, 0x00000a2e, 0x000b8255, 0x000fea0b },
1618 { 108, 0x00002c0c, 0x00000a32, 0x000b8255, 0x000fea13 },
1619 { 112, 0x00002c0c, 0x00000a36, 0x000b8255, 0x000fea1b },
1620 { 116, 0x00002c0c, 0x00000a3a, 0x000b8255, 0x000fea23 },
1621 { 120, 0x00002c0c, 0x00000a82, 0x000b8255, 0x000fea03 },
1622 { 124, 0x00002c0c, 0x00000a86, 0x000b8255, 0x000fea0b },
1623 { 128, 0x00002c0c, 0x00000a8a, 0x000b8255, 0x000fea13 },
1624 { 132, 0x00002c0c, 0x00000a8e, 0x000b8255, 0x000fea1b },
1625 { 136, 0x00002c0c, 0x00000a92, 0x000b8255, 0x000fea23 },
1628 { 140, 0x00002c0c, 0x00000a9a, 0x000b8255, 0x000fea03 },
1629 { 149, 0x00002c0c, 0x00000aa2, 0x000b8255, 0x000fea1f },
1630 { 153, 0x00002c0c, 0x00000aa6, 0x000b8255, 0x000fea27 },
1631 { 157, 0x00002c0c, 0x00000aae, 0x000b8255, 0x000fea07 },
1632 { 161, 0x00002c0c, 0x00000ab2, 0x000b8255, 0x000fea0f },
1633 { 165, 0x00002c0c, 0x00000ab6, 0x000b8255, 0x000fea17 },
1635 /* MMAC(Japan)J52 ch 34,38,42,46 */
1636 { 34, 0x00002c0c, 0x0008099a, 0x000da255, 0x000d3a0b },
1637 { 38, 0x00002c0c, 0x0008099e, 0x000da255, 0x000d3a13 },
1638 { 42, 0x00002c0c, 0x000809a2, 0x000da255, 0x000d3a1b },
1639 { 46, 0x00002c0c, 0x000809a6, 0x000da255, 0x000d3a23 },
1643 * RF value list for RF5225 & RF2527
1644 * Supports: 2.4 GHz & 5.2 GHz
1646 static const struct rf_channel rf_vals_5225_2527[] = {
1647 { 1, 0x00002ccc, 0x00004786, 0x00068455, 0x000ffa0b },
1648 { 2, 0x00002ccc, 0x00004786, 0x00068455, 0x000ffa1f },
1649 { 3, 0x00002ccc, 0x0000478a, 0x00068455, 0x000ffa0b },
1650 { 4, 0x00002ccc, 0x0000478a, 0x00068455, 0x000ffa1f },
1651 { 5, 0x00002ccc, 0x0000478e, 0x00068455, 0x000ffa0b },
1652 { 6, 0x00002ccc, 0x0000478e, 0x00068455, 0x000ffa1f },
1653 { 7, 0x00002ccc, 0x00004792, 0x00068455, 0x000ffa0b },
1654 { 8, 0x00002ccc, 0x00004792, 0x00068455, 0x000ffa1f },
1655 { 9, 0x00002ccc, 0x00004796, 0x00068455, 0x000ffa0b },
1656 { 10, 0x00002ccc, 0x00004796, 0x00068455, 0x000ffa1f },
1657 { 11, 0x00002ccc, 0x0000479a, 0x00068455, 0x000ffa0b },
1658 { 12, 0x00002ccc, 0x0000479a, 0x00068455, 0x000ffa1f },
1659 { 13, 0x00002ccc, 0x0000479e, 0x00068455, 0x000ffa0b },
1660 { 14, 0x00002ccc, 0x000047a2, 0x00068455, 0x000ffa13 },
1662 /* 802.11 UNI / HyperLan 2 */
1663 { 36, 0x00002ccc, 0x0000499a, 0x0009be55, 0x000ffa23 },
1664 { 40, 0x00002ccc, 0x000049a2, 0x0009be55, 0x000ffa03 },
1665 { 44, 0x00002ccc, 0x000049a6, 0x0009be55, 0x000ffa0b },
1666 { 48, 0x00002ccc, 0x000049aa, 0x0009be55, 0x000ffa13 },
1667 { 52, 0x00002ccc, 0x000049ae, 0x0009ae55, 0x000ffa1b },
1668 { 56, 0x00002ccc, 0x000049b2, 0x0009ae55, 0x000ffa23 },
1669 { 60, 0x00002ccc, 0x000049ba, 0x0009ae55, 0x000ffa03 },
1670 { 64, 0x00002ccc, 0x000049be, 0x0009ae55, 0x000ffa0b },
1672 /* 802.11 HyperLan 2 */
1673 { 100, 0x00002ccc, 0x00004a2a, 0x000bae55, 0x000ffa03 },
1674 { 104, 0x00002ccc, 0x00004a2e, 0x000bae55, 0x000ffa0b },
1675 { 108, 0x00002ccc, 0x00004a32, 0x000bae55, 0x000ffa13 },
1676 { 112, 0x00002ccc, 0x00004a36, 0x000bae55, 0x000ffa1b },
1677 { 116, 0x00002ccc, 0x00004a3a, 0x000bbe55, 0x000ffa23 },
1678 { 120, 0x00002ccc, 0x00004a82, 0x000bbe55, 0x000ffa03 },
1679 { 124, 0x00002ccc, 0x00004a86, 0x000bbe55, 0x000ffa0b },
1680 { 128, 0x00002ccc, 0x00004a8a, 0x000bbe55, 0x000ffa13 },
1681 { 132, 0x00002ccc, 0x00004a8e, 0x000bbe55, 0x000ffa1b },
1682 { 136, 0x00002ccc, 0x00004a92, 0x000bbe55, 0x000ffa23 },
1685 { 140, 0x00002ccc, 0x00004a9a, 0x000bbe55, 0x000ffa03 },
1686 { 149, 0x00002ccc, 0x00004aa2, 0x000bbe55, 0x000ffa1f },
1687 { 153, 0x00002ccc, 0x00004aa6, 0x000bbe55, 0x000ffa27 },
1688 { 157, 0x00002ccc, 0x00004aae, 0x000bbe55, 0x000ffa07 },
1689 { 161, 0x00002ccc, 0x00004ab2, 0x000bbe55, 0x000ffa0f },
1690 { 165, 0x00002ccc, 0x00004ab6, 0x000bbe55, 0x000ffa17 },
1692 /* MMAC(Japan)J52 ch 34,38,42,46 */
1693 { 34, 0x00002ccc, 0x0000499a, 0x0009be55, 0x000ffa0b },
1694 { 38, 0x00002ccc, 0x0000499e, 0x0009be55, 0x000ffa13 },
1695 { 42, 0x00002ccc, 0x000049a2, 0x0009be55, 0x000ffa1b },
1696 { 46, 0x00002ccc, 0x000049a6, 0x0009be55, 0x000ffa23 },
1700 static void rt73usb_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
1702 struct hw_mode_spec *spec = &rt2x00dev->spec;
1707 * Initialize all hw fields.
1709 rt2x00dev->hw->flags =
1710 IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE |
1711 IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING;
1712 rt2x00dev->hw->extra_tx_headroom = TXD_DESC_SIZE;
1713 rt2x00dev->hw->max_signal = MAX_SIGNAL;
1714 rt2x00dev->hw->max_rssi = MAX_RX_SSI;
1715 rt2x00dev->hw->queues = 5;
1717 SET_IEEE80211_DEV(rt2x00dev->hw, &rt2x00dev_usb(rt2x00dev)->dev);
1718 SET_IEEE80211_PERM_ADDR(rt2x00dev->hw,
1719 rt2x00_eeprom_addr(rt2x00dev,
1720 EEPROM_MAC_ADDR_0));
1723 * Convert tx_power array in eeprom.
1725 txpower = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_G_START);
1726 for (i = 0; i < 14; i++)
1727 txpower[i] = TXPOWER_FROM_DEV(txpower[i]);
1730 * Initialize hw_mode information.
1732 spec->num_modes = 2;
1733 spec->num_rates = 12;
1734 spec->tx_power_a = NULL;
1735 spec->tx_power_bg = txpower;
1736 spec->tx_power_default = DEFAULT_TXPOWER;
1738 if (rt2x00_rf(&rt2x00dev->chip, RF2528)) {
1739 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2528);
1740 spec->channels = rf_vals_bg_2528;
1741 } else if (rt2x00_rf(&rt2x00dev->chip, RF5226)) {
1742 spec->num_channels = ARRAY_SIZE(rf_vals_5226);
1743 spec->channels = rf_vals_5226;
1744 } else if (rt2x00_rf(&rt2x00dev->chip, RF2527)) {
1745 spec->num_channels = 14;
1746 spec->channels = rf_vals_5225_2527;
1747 } else if (rt2x00_rf(&rt2x00dev->chip, RF5225)) {
1748 spec->num_channels = ARRAY_SIZE(rf_vals_5225_2527);
1749 spec->channels = rf_vals_5225_2527;
1752 if (rt2x00_rf(&rt2x00dev->chip, RF5225) ||
1753 rt2x00_rf(&rt2x00dev->chip, RF5226)) {
1754 spec->num_modes = 3;
1756 txpower = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_A_START);
1757 for (i = 0; i < 14; i++)
1758 txpower[i] = TXPOWER_FROM_DEV(txpower[i]);
1760 spec->tx_power_a = txpower;
1764 static int rt73usb_probe_hw(struct rt2x00_dev *rt2x00dev)
1769 * Allocate eeprom data.
1771 retval = rt73usb_validate_eeprom(rt2x00dev);
1775 retval = rt73usb_init_eeprom(rt2x00dev);
1780 * Initialize hw specifications.
1782 rt73usb_probe_hw_mode(rt2x00dev);
1785 * This device requires firmware
1787 __set_bit(DRIVER_REQUIRE_FIRMWARE, &rt2x00dev->flags);
1790 * Set the rssi offset.
1792 rt2x00dev->rssi_offset = DEFAULT_RSSI_OFFSET;
1798 * IEEE80211 stack callback functions.
1800 static void rt73usb_configure_filter(struct ieee80211_hw *hw,
1801 unsigned int changed_flags,
1802 unsigned int *total_flags,
1804 struct dev_addr_list *mc_list)
1806 struct rt2x00_dev *rt2x00dev = hw->priv;
1807 struct interface *intf = &rt2x00dev->interface;
1811 * Mask off any flags we are going to ignore from
1812 * the total_flags field.
1823 * Apply some rules to the filters:
1824 * - Some filters imply different filters to be set.
1825 * - Some things we can't filter out at all.
1826 * - Some filters are set based on interface type.
1829 *total_flags |= FIF_ALLMULTI;
1830 if (*total_flags & FIF_OTHER_BSS ||
1831 *total_flags & FIF_PROMISC_IN_BSS)
1832 *total_flags |= FIF_PROMISC_IN_BSS | FIF_OTHER_BSS;
1833 if (is_interface_type(intf, IEEE80211_IF_TYPE_AP))
1834 *total_flags |= FIF_PROMISC_IN_BSS;
1837 * Check if there is any work left for us.
1839 if (intf->filter == *total_flags)
1841 intf->filter = *total_flags;
1844 * When in atomic context, reschedule and let rt2x00lib
1845 * call this function again.
1848 queue_work(rt2x00dev->hw->workqueue, &rt2x00dev->filter_work);
1853 * Start configuration steps.
1854 * Note that the version error will always be dropped
1855 * and broadcast frames will always be accepted since
1856 * there is no filter for it at this time.
1858 rt73usb_register_read(rt2x00dev, TXRX_CSR0, ®);
1859 rt2x00_set_field32(®, TXRX_CSR0_DROP_CRC,
1860 !(*total_flags & FIF_FCSFAIL));
1861 rt2x00_set_field32(®, TXRX_CSR0_DROP_PHYSICAL,
1862 !(*total_flags & FIF_PLCPFAIL));
1863 rt2x00_set_field32(®, TXRX_CSR0_DROP_CONTROL,
1864 !(*total_flags & FIF_CONTROL));
1865 rt2x00_set_field32(®, TXRX_CSR0_DROP_NOT_TO_ME,
1866 !(*total_flags & FIF_PROMISC_IN_BSS));
1867 rt2x00_set_field32(®, TXRX_CSR0_DROP_TO_DS,
1868 !(*total_flags & FIF_PROMISC_IN_BSS));
1869 rt2x00_set_field32(®, TXRX_CSR0_DROP_VERSION_ERROR, 1);
1870 rt2x00_set_field32(®, TXRX_CSR0_DROP_MULTICAST,
1871 !(*total_flags & FIF_ALLMULTI));
1872 rt2x00_set_field32(®, TXRX_CSR0_DROP_BROADCAST, 0);
1873 rt2x00_set_field32(®, TXRX_CSR0_DROP_ACK_CTS, 1);
1874 rt73usb_register_write(rt2x00dev, TXRX_CSR0, reg);
1877 static int rt73usb_set_retry_limit(struct ieee80211_hw *hw,
1878 u32 short_retry, u32 long_retry)
1880 struct rt2x00_dev *rt2x00dev = hw->priv;
1883 rt73usb_register_read(rt2x00dev, TXRX_CSR4, ®);
1884 rt2x00_set_field32(®, TXRX_CSR4_LONG_RETRY_LIMIT, long_retry);
1885 rt2x00_set_field32(®, TXRX_CSR4_SHORT_RETRY_LIMIT, short_retry);
1886 rt73usb_register_write(rt2x00dev, TXRX_CSR4, reg);
1893 * Mac80211 demands get_tsf must be atomic.
1894 * This is not possible for rt73usb since all register access
1895 * functions require sleeping. Untill mac80211 no longer needs
1896 * get_tsf to be atomic, this function should be disabled.
1898 static u64 rt73usb_get_tsf(struct ieee80211_hw *hw)
1900 struct rt2x00_dev *rt2x00dev = hw->priv;
1904 rt73usb_register_read(rt2x00dev, TXRX_CSR13, ®);
1905 tsf = (u64) rt2x00_get_field32(reg, TXRX_CSR13_HIGH_TSFTIMER) << 32;
1906 rt73usb_register_read(rt2x00dev, TXRX_CSR12, ®);
1907 tsf |= rt2x00_get_field32(reg, TXRX_CSR12_LOW_TSFTIMER);
1912 #define rt73usb_get_tsf NULL
1915 static void rt73usb_reset_tsf(struct ieee80211_hw *hw)
1917 struct rt2x00_dev *rt2x00dev = hw->priv;
1919 rt73usb_register_write(rt2x00dev, TXRX_CSR12, 0);
1920 rt73usb_register_write(rt2x00dev, TXRX_CSR13, 0);
1923 static int rt73usb_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb,
1924 struct ieee80211_tx_control *control)
1926 struct rt2x00_dev *rt2x00dev = hw->priv;
1930 * Just in case the ieee80211 doesn't set this,
1931 * but we need this queue set for the descriptor
1934 control->queue = IEEE80211_TX_QUEUE_BEACON;
1937 * First we create the beacon.
1939 skb_push(skb, TXD_DESC_SIZE);
1940 memset(skb->data, 0, TXD_DESC_SIZE);
1942 rt2x00lib_write_tx_desc(rt2x00dev, (struct data_desc *)skb->data,
1943 (struct ieee80211_hdr *)(skb->data +
1945 skb->len - TXD_DESC_SIZE, control);
1948 * Write entire beacon with descriptor to register,
1949 * and kick the beacon generator.
1951 timeout = REGISTER_TIMEOUT * (skb->len / sizeof(u32));
1952 rt2x00usb_vendor_request(rt2x00dev, USB_MULTI_WRITE,
1953 USB_VENDOR_REQUEST_OUT,
1954 HW_BEACON_BASE0, 0x0000,
1955 skb->data, skb->len, timeout);
1956 rt73usb_kick_tx_queue(rt2x00dev, IEEE80211_TX_QUEUE_BEACON);
1961 static const struct ieee80211_ops rt73usb_mac80211_ops = {
1963 .start = rt2x00mac_start,
1964 .stop = rt2x00mac_stop,
1965 .add_interface = rt2x00mac_add_interface,
1966 .remove_interface = rt2x00mac_remove_interface,
1967 .config = rt2x00mac_config,
1968 .config_interface = rt2x00mac_config_interface,
1969 .configure_filter = rt73usb_configure_filter,
1970 .get_stats = rt2x00mac_get_stats,
1971 .set_retry_limit = rt73usb_set_retry_limit,
1972 .erp_ie_changed = rt2x00mac_erp_ie_changed,
1973 .conf_tx = rt2x00mac_conf_tx,
1974 .get_tx_stats = rt2x00mac_get_tx_stats,
1975 .get_tsf = rt73usb_get_tsf,
1976 .reset_tsf = rt73usb_reset_tsf,
1977 .beacon_update = rt73usb_beacon_update,
1980 static const struct rt2x00lib_ops rt73usb_rt2x00_ops = {
1981 .probe_hw = rt73usb_probe_hw,
1982 .get_firmware_name = rt73usb_get_firmware_name,
1983 .load_firmware = rt73usb_load_firmware,
1984 .initialize = rt2x00usb_initialize,
1985 .uninitialize = rt2x00usb_uninitialize,
1986 .set_device_state = rt73usb_set_device_state,
1987 .link_stats = rt73usb_link_stats,
1988 .reset_tuner = rt73usb_reset_tuner,
1989 .link_tuner = rt73usb_link_tuner,
1990 .write_tx_desc = rt73usb_write_tx_desc,
1991 .write_tx_data = rt2x00usb_write_tx_data,
1992 .get_tx_data_len = rt73usb_get_tx_data_len,
1993 .kick_tx_queue = rt73usb_kick_tx_queue,
1994 .fill_rxdone = rt73usb_fill_rxdone,
1995 .config_mac_addr = rt73usb_config_mac_addr,
1996 .config_bssid = rt73usb_config_bssid,
1997 .config_type = rt73usb_config_type,
1998 .config_preamble = rt73usb_config_preamble,
1999 .config = rt73usb_config,
2002 static const struct rt2x00_ops rt73usb_ops = {
2004 .rxd_size = RXD_DESC_SIZE,
2005 .txd_size = TXD_DESC_SIZE,
2006 .eeprom_size = EEPROM_SIZE,
2008 .lib = &rt73usb_rt2x00_ops,
2009 .hw = &rt73usb_mac80211_ops,
2010 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
2011 .debugfs = &rt73usb_rt2x00debug,
2012 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
2016 * rt73usb module information.
2018 static struct usb_device_id rt73usb_device_table[] = {
2020 { USB_DEVICE(0x07b8, 0xb21d), USB_DEVICE_DATA(&rt73usb_ops) },
2022 { USB_DEVICE(0x1690, 0x0722), USB_DEVICE_DATA(&rt73usb_ops) },
2024 { USB_DEVICE(0x0b05, 0x1723), USB_DEVICE_DATA(&rt73usb_ops) },
2025 { USB_DEVICE(0x0b05, 0x1724), USB_DEVICE_DATA(&rt73usb_ops) },
2027 { USB_DEVICE(0x050d, 0x7050), USB_DEVICE_DATA(&rt73usb_ops) },
2028 { USB_DEVICE(0x050d, 0x705a), USB_DEVICE_DATA(&rt73usb_ops) },
2029 { USB_DEVICE(0x050d, 0x905b), USB_DEVICE_DATA(&rt73usb_ops) },
2030 { USB_DEVICE(0x050d, 0x905c), USB_DEVICE_DATA(&rt73usb_ops) },
2032 { USB_DEVICE(0x1631, 0xc019), USB_DEVICE_DATA(&rt73usb_ops) },
2034 { USB_DEVICE(0x0411, 0x00f4), USB_DEVICE_DATA(&rt73usb_ops) },
2036 { USB_DEVICE(0x1371, 0x9022), USB_DEVICE_DATA(&rt73usb_ops) },
2037 { USB_DEVICE(0x1371, 0x9032), USB_DEVICE_DATA(&rt73usb_ops) },
2039 { USB_DEVICE(0x14b2, 0x3c22), USB_DEVICE_DATA(&rt73usb_ops) },
2041 { USB_DEVICE(0x07d1, 0x3c03), USB_DEVICE_DATA(&rt73usb_ops) },
2042 { USB_DEVICE(0x07d1, 0x3c04), USB_DEVICE_DATA(&rt73usb_ops) },
2044 { USB_DEVICE(0x15a9, 0x0004), USB_DEVICE_DATA(&rt73usb_ops) },
2046 { USB_DEVICE(0x1044, 0x8008), USB_DEVICE_DATA(&rt73usb_ops) },
2047 { USB_DEVICE(0x1044, 0x800a), USB_DEVICE_DATA(&rt73usb_ops) },
2049 { USB_DEVICE(0x1472, 0x0009), USB_DEVICE_DATA(&rt73usb_ops) },
2051 { USB_DEVICE(0x06f8, 0xe010), USB_DEVICE_DATA(&rt73usb_ops) },
2052 { USB_DEVICE(0x06f8, 0xe020), USB_DEVICE_DATA(&rt73usb_ops) },
2054 { USB_DEVICE(0x13b1, 0x0020), USB_DEVICE_DATA(&rt73usb_ops) },
2055 { USB_DEVICE(0x13b1, 0x0023), USB_DEVICE_DATA(&rt73usb_ops) },
2057 { USB_DEVICE(0x0db0, 0x6877), USB_DEVICE_DATA(&rt73usb_ops) },
2058 { USB_DEVICE(0x0db0, 0x6874), USB_DEVICE_DATA(&rt73usb_ops) },
2059 { USB_DEVICE(0x0db0, 0xa861), USB_DEVICE_DATA(&rt73usb_ops) },
2060 { USB_DEVICE(0x0db0, 0xa874), USB_DEVICE_DATA(&rt73usb_ops) },
2062 { USB_DEVICE(0x148f, 0x2573), USB_DEVICE_DATA(&rt73usb_ops) },
2063 { USB_DEVICE(0x148f, 0x2671), USB_DEVICE_DATA(&rt73usb_ops) },
2065 { USB_DEVICE(0x18e8, 0x6196), USB_DEVICE_DATA(&rt73usb_ops) },
2066 { USB_DEVICE(0x18e8, 0x6229), USB_DEVICE_DATA(&rt73usb_ops) },
2067 { USB_DEVICE(0x18e8, 0x6238), USB_DEVICE_DATA(&rt73usb_ops) },
2069 { USB_DEVICE(0x1740, 0x7100), USB_DEVICE_DATA(&rt73usb_ops) },
2071 { USB_DEVICE(0x0df6, 0x9712), USB_DEVICE_DATA(&rt73usb_ops) },
2072 { USB_DEVICE(0x0df6, 0x90ac), USB_DEVICE_DATA(&rt73usb_ops) },
2074 { USB_DEVICE(0x0769, 0x31f3), USB_DEVICE_DATA(&rt73usb_ops) },
2076 { USB_DEVICE(0x2019, 0xab01), USB_DEVICE_DATA(&rt73usb_ops) },
2077 { USB_DEVICE(0x2019, 0xab50), USB_DEVICE_DATA(&rt73usb_ops) },
2081 MODULE_AUTHOR(DRV_PROJECT);
2082 MODULE_VERSION(DRV_VERSION);
2083 MODULE_DESCRIPTION("Ralink RT73 USB Wireless LAN driver.");
2084 MODULE_SUPPORTED_DEVICE("Ralink RT2571W & RT2671 USB chipset based cards");
2085 MODULE_DEVICE_TABLE(usb, rt73usb_device_table);
2086 MODULE_FIRMWARE(FIRMWARE_RT2571);
2087 MODULE_LICENSE("GPL");
2089 static struct usb_driver rt73usb_driver = {
2091 .id_table = rt73usb_device_table,
2092 .probe = rt2x00usb_probe,
2093 .disconnect = rt2x00usb_disconnect,
2094 .suspend = rt2x00usb_suspend,
2095 .resume = rt2x00usb_resume,
2098 static int __init rt73usb_init(void)
2100 return usb_register(&rt73usb_driver);
2103 static void __exit rt73usb_exit(void)
2105 usb_deregister(&rt73usb_driver);
2108 module_init(rt73usb_init);
2109 module_exit(rt73usb_exit);