2 Copyright (C) 2004 - 2009 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"
39 * Allow hardware encryption to be disabled.
41 static int modparam_nohwcrypt = 0;
42 module_param_named(nohwcrypt, modparam_nohwcrypt, bool, S_IRUGO);
43 MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption.");
47 * All access to the CSR registers will go through the methods
48 * rt2500usb_register_read and rt2500usb_register_write.
49 * BBP and RF register require indirect register access,
50 * and use the CSR registers BBPCSR and RFCSR to achieve this.
51 * These indirect registers work with busy bits,
52 * and we will try maximal REGISTER_BUSY_COUNT times to access
53 * the register while taking a REGISTER_BUSY_DELAY us delay
54 * between each attampt. When the busy bit is still set at that time,
55 * the access attempt is considered to have failed,
56 * and we will print an error.
57 * If the csr_mutex is already held then the _lock variants must
60 static inline void rt2500usb_register_read(struct rt2x00_dev *rt2x00dev,
61 const unsigned int offset,
65 rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_READ,
66 USB_VENDOR_REQUEST_IN, offset,
67 ®, sizeof(reg), REGISTER_TIMEOUT);
68 *value = le16_to_cpu(reg);
71 static inline void rt2500usb_register_read_lock(struct rt2x00_dev *rt2x00dev,
72 const unsigned int offset,
76 rt2x00usb_vendor_req_buff_lock(rt2x00dev, USB_MULTI_READ,
77 USB_VENDOR_REQUEST_IN, offset,
78 ®, sizeof(reg), REGISTER_TIMEOUT);
79 *value = le16_to_cpu(reg);
82 static inline void rt2500usb_register_multiread(struct rt2x00_dev *rt2x00dev,
83 const unsigned int offset,
84 void *value, const u16 length)
86 rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_READ,
87 USB_VENDOR_REQUEST_IN, offset,
89 REGISTER_TIMEOUT16(length));
92 static inline void rt2500usb_register_write(struct rt2x00_dev *rt2x00dev,
93 const unsigned int offset,
96 __le16 reg = cpu_to_le16(value);
97 rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_WRITE,
98 USB_VENDOR_REQUEST_OUT, offset,
99 ®, sizeof(reg), REGISTER_TIMEOUT);
102 static inline void rt2500usb_register_write_lock(struct rt2x00_dev *rt2x00dev,
103 const unsigned int offset,
106 __le16 reg = cpu_to_le16(value);
107 rt2x00usb_vendor_req_buff_lock(rt2x00dev, USB_MULTI_WRITE,
108 USB_VENDOR_REQUEST_OUT, offset,
109 ®, sizeof(reg), REGISTER_TIMEOUT);
112 static inline void rt2500usb_register_multiwrite(struct rt2x00_dev *rt2x00dev,
113 const unsigned int offset,
114 void *value, const u16 length)
116 rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_WRITE,
117 USB_VENDOR_REQUEST_OUT, offset,
119 REGISTER_TIMEOUT16(length));
122 static int rt2500usb_regbusy_read(struct rt2x00_dev *rt2x00dev,
123 const unsigned int offset,
124 struct rt2x00_field16 field,
129 for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
130 rt2500usb_register_read_lock(rt2x00dev, offset, reg);
131 if (!rt2x00_get_field16(*reg, field))
133 udelay(REGISTER_BUSY_DELAY);
136 ERROR(rt2x00dev, "Indirect register access failed: "
137 "offset=0x%.08x, value=0x%.08x\n", offset, *reg);
143 #define WAIT_FOR_BBP(__dev, __reg) \
144 rt2500usb_regbusy_read((__dev), PHY_CSR8, PHY_CSR8_BUSY, (__reg))
145 #define WAIT_FOR_RF(__dev, __reg) \
146 rt2500usb_regbusy_read((__dev), PHY_CSR10, PHY_CSR10_RF_BUSY, (__reg))
148 static void rt2500usb_bbp_write(struct rt2x00_dev *rt2x00dev,
149 const unsigned int word, const u8 value)
153 mutex_lock(&rt2x00dev->csr_mutex);
156 * Wait until the BBP becomes available, afterwards we
157 * can safely write the new data into the register.
159 if (WAIT_FOR_BBP(rt2x00dev, ®)) {
161 rt2x00_set_field16(®, PHY_CSR7_DATA, value);
162 rt2x00_set_field16(®, PHY_CSR7_REG_ID, word);
163 rt2x00_set_field16(®, PHY_CSR7_READ_CONTROL, 0);
165 rt2500usb_register_write_lock(rt2x00dev, PHY_CSR7, reg);
168 mutex_unlock(&rt2x00dev->csr_mutex);
171 static void rt2500usb_bbp_read(struct rt2x00_dev *rt2x00dev,
172 const unsigned int word, u8 *value)
176 mutex_lock(&rt2x00dev->csr_mutex);
179 * Wait until the BBP becomes available, afterwards we
180 * can safely write the read request into the register.
181 * After the data has been written, we wait until hardware
182 * returns the correct value, if at any time the register
183 * doesn't become available in time, reg will be 0xffffffff
184 * which means we return 0xff to the caller.
186 if (WAIT_FOR_BBP(rt2x00dev, ®)) {
188 rt2x00_set_field16(®, PHY_CSR7_REG_ID, word);
189 rt2x00_set_field16(®, PHY_CSR7_READ_CONTROL, 1);
191 rt2500usb_register_write_lock(rt2x00dev, PHY_CSR7, reg);
193 if (WAIT_FOR_BBP(rt2x00dev, ®))
194 rt2500usb_register_read_lock(rt2x00dev, PHY_CSR7, ®);
197 *value = rt2x00_get_field16(reg, PHY_CSR7_DATA);
199 mutex_unlock(&rt2x00dev->csr_mutex);
202 static void rt2500usb_rf_write(struct rt2x00_dev *rt2x00dev,
203 const unsigned int word, const u32 value)
207 mutex_lock(&rt2x00dev->csr_mutex);
210 * Wait until the RF becomes available, afterwards we
211 * can safely write the new data into the register.
213 if (WAIT_FOR_RF(rt2x00dev, ®)) {
215 rt2x00_set_field16(®, PHY_CSR9_RF_VALUE, value);
216 rt2500usb_register_write_lock(rt2x00dev, PHY_CSR9, reg);
219 rt2x00_set_field16(®, PHY_CSR10_RF_VALUE, value >> 16);
220 rt2x00_set_field16(®, PHY_CSR10_RF_NUMBER_OF_BITS, 20);
221 rt2x00_set_field16(®, PHY_CSR10_RF_IF_SELECT, 0);
222 rt2x00_set_field16(®, PHY_CSR10_RF_BUSY, 1);
224 rt2500usb_register_write_lock(rt2x00dev, PHY_CSR10, reg);
225 rt2x00_rf_write(rt2x00dev, word, value);
228 mutex_unlock(&rt2x00dev->csr_mutex);
231 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
232 static void _rt2500usb_register_read(struct rt2x00_dev *rt2x00dev,
233 const unsigned int offset,
236 rt2500usb_register_read(rt2x00dev, offset, (u16 *)value);
239 static void _rt2500usb_register_write(struct rt2x00_dev *rt2x00dev,
240 const unsigned int offset,
243 rt2500usb_register_write(rt2x00dev, offset, value);
246 static const struct rt2x00debug rt2500usb_rt2x00debug = {
247 .owner = THIS_MODULE,
249 .read = _rt2500usb_register_read,
250 .write = _rt2500usb_register_write,
251 .flags = RT2X00DEBUGFS_OFFSET,
252 .word_base = CSR_REG_BASE,
253 .word_size = sizeof(u16),
254 .word_count = CSR_REG_SIZE / sizeof(u16),
257 .read = rt2x00_eeprom_read,
258 .write = rt2x00_eeprom_write,
259 .word_base = EEPROM_BASE,
260 .word_size = sizeof(u16),
261 .word_count = EEPROM_SIZE / sizeof(u16),
264 .read = rt2500usb_bbp_read,
265 .write = rt2500usb_bbp_write,
266 .word_base = BBP_BASE,
267 .word_size = sizeof(u8),
268 .word_count = BBP_SIZE / sizeof(u8),
271 .read = rt2x00_rf_read,
272 .write = rt2500usb_rf_write,
273 .word_base = RF_BASE,
274 .word_size = sizeof(u32),
275 .word_count = RF_SIZE / sizeof(u32),
278 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
280 static int rt2500usb_rfkill_poll(struct rt2x00_dev *rt2x00dev)
284 rt2500usb_register_read(rt2x00dev, MAC_CSR19, ®);
285 return rt2x00_get_field32(reg, MAC_CSR19_BIT7);
288 #ifdef CONFIG_RT2X00_LIB_LEDS
289 static void rt2500usb_brightness_set(struct led_classdev *led_cdev,
290 enum led_brightness brightness)
292 struct rt2x00_led *led =
293 container_of(led_cdev, struct rt2x00_led, led_dev);
294 unsigned int enabled = brightness != LED_OFF;
297 rt2500usb_register_read(led->rt2x00dev, MAC_CSR20, ®);
299 if (led->type == LED_TYPE_RADIO || led->type == LED_TYPE_ASSOC)
300 rt2x00_set_field16(®, MAC_CSR20_LINK, enabled);
301 else if (led->type == LED_TYPE_ACTIVITY)
302 rt2x00_set_field16(®, MAC_CSR20_ACTIVITY, enabled);
304 rt2500usb_register_write(led->rt2x00dev, MAC_CSR20, reg);
307 static int rt2500usb_blink_set(struct led_classdev *led_cdev,
308 unsigned long *delay_on,
309 unsigned long *delay_off)
311 struct rt2x00_led *led =
312 container_of(led_cdev, struct rt2x00_led, led_dev);
315 rt2500usb_register_read(led->rt2x00dev, MAC_CSR21, ®);
316 rt2x00_set_field16(®, MAC_CSR21_ON_PERIOD, *delay_on);
317 rt2x00_set_field16(®, MAC_CSR21_OFF_PERIOD, *delay_off);
318 rt2500usb_register_write(led->rt2x00dev, MAC_CSR21, reg);
323 static void rt2500usb_init_led(struct rt2x00_dev *rt2x00dev,
324 struct rt2x00_led *led,
327 led->rt2x00dev = rt2x00dev;
329 led->led_dev.brightness_set = rt2500usb_brightness_set;
330 led->led_dev.blink_set = rt2500usb_blink_set;
331 led->flags = LED_INITIALIZED;
333 #endif /* CONFIG_RT2X00_LIB_LEDS */
336 * Configuration handlers.
340 * rt2500usb does not differentiate between shared and pairwise
341 * keys, so we should use the same function for both key types.
343 static int rt2500usb_config_key(struct rt2x00_dev *rt2x00dev,
344 struct rt2x00lib_crypto *crypto,
345 struct ieee80211_key_conf *key)
351 if (crypto->cmd == SET_KEY) {
353 * Pairwise key will always be entry 0, but this
354 * could collide with a shared key on the same
357 mask = TXRX_CSR0_KEY_ID.bit_mask;
359 rt2500usb_register_read(rt2x00dev, TXRX_CSR0, ®);
362 if (reg && reg == mask)
365 reg = rt2x00_get_field16(reg, TXRX_CSR0_KEY_ID);
367 key->hw_key_idx += reg ? ffz(reg) : 0;
370 * The encryption key doesn't fit within the CSR cache,
371 * this means we should allocate it seperately and use
372 * rt2x00usb_vendor_request() to send the key to the hardware.
374 reg = KEY_ENTRY(key->hw_key_idx);
375 timeout = REGISTER_TIMEOUT32(sizeof(crypto->key));
376 rt2x00usb_vendor_request_large_buff(rt2x00dev, USB_MULTI_WRITE,
377 USB_VENDOR_REQUEST_OUT, reg,
383 * The driver does not support the IV/EIV generation
384 * in hardware. However it demands the data to be provided
385 * both seperately as well as inside the frame.
386 * We already provided the CONFIG_CRYPTO_COPY_IV to rt2x00lib
387 * to ensure rt2x00lib will not strip the data from the
388 * frame after the copy, now we must tell mac80211
389 * to generate the IV/EIV data.
391 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
392 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
396 * TXRX_CSR0_KEY_ID contains only single-bit fields to indicate
397 * a particular key is valid.
399 rt2500usb_register_read(rt2x00dev, TXRX_CSR0, ®);
400 rt2x00_set_field16(®, TXRX_CSR0_ALGORITHM, crypto->cipher);
401 rt2x00_set_field16(®, TXRX_CSR0_IV_OFFSET, IEEE80211_HEADER);
403 mask = rt2x00_get_field16(reg, TXRX_CSR0_KEY_ID);
404 if (crypto->cmd == SET_KEY)
405 mask |= 1 << key->hw_key_idx;
406 else if (crypto->cmd == DISABLE_KEY)
407 mask &= ~(1 << key->hw_key_idx);
408 rt2x00_set_field16(®, TXRX_CSR0_KEY_ID, mask);
409 rt2500usb_register_write(rt2x00dev, TXRX_CSR0, reg);
414 static void rt2500usb_config_filter(struct rt2x00_dev *rt2x00dev,
415 const unsigned int filter_flags)
420 * Start configuration steps.
421 * Note that the version error will always be dropped
422 * and broadcast frames will always be accepted since
423 * there is no filter for it at this time.
425 rt2500usb_register_read(rt2x00dev, TXRX_CSR2, ®);
426 rt2x00_set_field16(®, TXRX_CSR2_DROP_CRC,
427 !(filter_flags & FIF_FCSFAIL));
428 rt2x00_set_field16(®, TXRX_CSR2_DROP_PHYSICAL,
429 !(filter_flags & FIF_PLCPFAIL));
430 rt2x00_set_field16(®, TXRX_CSR2_DROP_CONTROL,
431 !(filter_flags & FIF_CONTROL));
432 rt2x00_set_field16(®, TXRX_CSR2_DROP_NOT_TO_ME,
433 !(filter_flags & FIF_PROMISC_IN_BSS));
434 rt2x00_set_field16(®, TXRX_CSR2_DROP_TODS,
435 !(filter_flags & FIF_PROMISC_IN_BSS) &&
436 !rt2x00dev->intf_ap_count);
437 rt2x00_set_field16(®, TXRX_CSR2_DROP_VERSION_ERROR, 1);
438 rt2x00_set_field16(®, TXRX_CSR2_DROP_MULTICAST,
439 !(filter_flags & FIF_ALLMULTI));
440 rt2x00_set_field16(®, TXRX_CSR2_DROP_BROADCAST, 0);
441 rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
444 static void rt2500usb_config_intf(struct rt2x00_dev *rt2x00dev,
445 struct rt2x00_intf *intf,
446 struct rt2x00intf_conf *conf,
447 const unsigned int flags)
449 unsigned int bcn_preload;
452 if (flags & CONFIG_UPDATE_TYPE) {
454 * Enable beacon config
456 bcn_preload = PREAMBLE + GET_DURATION(IEEE80211_HEADER, 20);
457 rt2500usb_register_read(rt2x00dev, TXRX_CSR20, ®);
458 rt2x00_set_field16(®, TXRX_CSR20_OFFSET, bcn_preload >> 6);
459 rt2x00_set_field16(®, TXRX_CSR20_BCN_EXPECT_WINDOW,
460 2 * (conf->type != NL80211_IFTYPE_STATION));
461 rt2500usb_register_write(rt2x00dev, TXRX_CSR20, reg);
464 * Enable synchronisation.
466 rt2500usb_register_read(rt2x00dev, TXRX_CSR18, ®);
467 rt2x00_set_field16(®, TXRX_CSR18_OFFSET, 0);
468 rt2500usb_register_write(rt2x00dev, TXRX_CSR18, reg);
470 rt2500usb_register_read(rt2x00dev, TXRX_CSR19, ®);
471 rt2x00_set_field16(®, TXRX_CSR19_TSF_COUNT, 1);
472 rt2x00_set_field16(®, TXRX_CSR19_TSF_SYNC, conf->sync);
473 rt2x00_set_field16(®, TXRX_CSR19_TBCN, 1);
474 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
477 if (flags & CONFIG_UPDATE_MAC)
478 rt2500usb_register_multiwrite(rt2x00dev, MAC_CSR2, conf->mac,
479 (3 * sizeof(__le16)));
481 if (flags & CONFIG_UPDATE_BSSID)
482 rt2500usb_register_multiwrite(rt2x00dev, MAC_CSR5, conf->bssid,
483 (3 * sizeof(__le16)));
486 static void rt2500usb_config_erp(struct rt2x00_dev *rt2x00dev,
487 struct rt2x00lib_erp *erp)
491 rt2500usb_register_read(rt2x00dev, TXRX_CSR1, ®);
492 rt2x00_set_field16(®, TXRX_CSR1_ACK_TIMEOUT, erp->ack_timeout);
493 rt2500usb_register_write(rt2x00dev, TXRX_CSR1, reg);
495 rt2500usb_register_read(rt2x00dev, TXRX_CSR10, ®);
496 rt2x00_set_field16(®, TXRX_CSR10_AUTORESPOND_PREAMBLE,
497 !!erp->short_preamble);
498 rt2500usb_register_write(rt2x00dev, TXRX_CSR10, reg);
500 rt2500usb_register_write(rt2x00dev, TXRX_CSR11, erp->basic_rates);
502 rt2500usb_register_read(rt2x00dev, TXRX_CSR18, ®);
503 rt2x00_set_field16(®, TXRX_CSR18_INTERVAL, erp->beacon_int * 4);
504 rt2500usb_register_write(rt2x00dev, TXRX_CSR18, reg);
506 rt2500usb_register_write(rt2x00dev, MAC_CSR10, erp->slot_time);
507 rt2500usb_register_write(rt2x00dev, MAC_CSR11, erp->sifs);
508 rt2500usb_register_write(rt2x00dev, MAC_CSR12, erp->eifs);
511 static void rt2500usb_config_ant(struct rt2x00_dev *rt2x00dev,
512 struct antenna_setup *ant)
520 * We should never come here because rt2x00lib is supposed
521 * to catch this and send us the correct antenna explicitely.
523 BUG_ON(ant->rx == ANTENNA_SW_DIVERSITY ||
524 ant->tx == ANTENNA_SW_DIVERSITY);
526 rt2500usb_bbp_read(rt2x00dev, 2, &r2);
527 rt2500usb_bbp_read(rt2x00dev, 14, &r14);
528 rt2500usb_register_read(rt2x00dev, PHY_CSR5, &csr5);
529 rt2500usb_register_read(rt2x00dev, PHY_CSR6, &csr6);
532 * Configure the TX antenna.
535 case ANTENNA_HW_DIVERSITY:
536 rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 1);
537 rt2x00_set_field16(&csr5, PHY_CSR5_CCK, 1);
538 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM, 1);
541 rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 0);
542 rt2x00_set_field16(&csr5, PHY_CSR5_CCK, 0);
543 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM, 0);
547 rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 2);
548 rt2x00_set_field16(&csr5, PHY_CSR5_CCK, 2);
549 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM, 2);
554 * Configure the RX antenna.
557 case ANTENNA_HW_DIVERSITY:
558 rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 1);
561 rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 0);
565 rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 2);
570 * RT2525E and RT5222 need to flip TX I/Q
572 if (rt2x00_rf(&rt2x00dev->chip, RF2525E) ||
573 rt2x00_rf(&rt2x00dev->chip, RF5222)) {
574 rt2x00_set_field8(&r2, BBP_R2_TX_IQ_FLIP, 1);
575 rt2x00_set_field16(&csr5, PHY_CSR5_CCK_FLIP, 1);
576 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM_FLIP, 1);
579 * RT2525E does not need RX I/Q Flip.
581 if (rt2x00_rf(&rt2x00dev->chip, RF2525E))
582 rt2x00_set_field8(&r14, BBP_R14_RX_IQ_FLIP, 0);
584 rt2x00_set_field16(&csr5, PHY_CSR5_CCK_FLIP, 0);
585 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM_FLIP, 0);
588 rt2500usb_bbp_write(rt2x00dev, 2, r2);
589 rt2500usb_bbp_write(rt2x00dev, 14, r14);
590 rt2500usb_register_write(rt2x00dev, PHY_CSR5, csr5);
591 rt2500usb_register_write(rt2x00dev, PHY_CSR6, csr6);
594 static void rt2500usb_config_channel(struct rt2x00_dev *rt2x00dev,
595 struct rf_channel *rf, const int txpower)
600 rt2x00_set_field32(&rf->rf3, RF3_TXPOWER, TXPOWER_TO_DEV(txpower));
603 * For RT2525E we should first set the channel to half band higher.
605 if (rt2x00_rf(&rt2x00dev->chip, RF2525E)) {
606 static const u32 vals[] = {
607 0x000008aa, 0x000008ae, 0x000008ae, 0x000008b2,
608 0x000008b2, 0x000008b6, 0x000008b6, 0x000008ba,
609 0x000008ba, 0x000008be, 0x000008b7, 0x00000902,
610 0x00000902, 0x00000906
613 rt2500usb_rf_write(rt2x00dev, 2, vals[rf->channel - 1]);
615 rt2500usb_rf_write(rt2x00dev, 4, rf->rf4);
618 rt2500usb_rf_write(rt2x00dev, 1, rf->rf1);
619 rt2500usb_rf_write(rt2x00dev, 2, rf->rf2);
620 rt2500usb_rf_write(rt2x00dev, 3, rf->rf3);
622 rt2500usb_rf_write(rt2x00dev, 4, rf->rf4);
625 static void rt2500usb_config_txpower(struct rt2x00_dev *rt2x00dev,
630 rt2x00_rf_read(rt2x00dev, 3, &rf3);
631 rt2x00_set_field32(&rf3, RF3_TXPOWER, TXPOWER_TO_DEV(txpower));
632 rt2500usb_rf_write(rt2x00dev, 3, rf3);
635 static void rt2500usb_config_ps(struct rt2x00_dev *rt2x00dev,
636 struct rt2x00lib_conf *libconf)
638 enum dev_state state =
639 (libconf->conf->flags & IEEE80211_CONF_PS) ?
640 STATE_SLEEP : STATE_AWAKE;
643 if (state == STATE_SLEEP) {
644 rt2500usb_register_read(rt2x00dev, MAC_CSR18, ®);
645 rt2x00_set_field16(®, MAC_CSR18_DELAY_AFTER_BEACON,
646 rt2x00dev->beacon_int - 20);
647 rt2x00_set_field16(®, MAC_CSR18_BEACONS_BEFORE_WAKEUP,
648 libconf->conf->listen_interval - 1);
650 /* We must first disable autowake before it can be enabled */
651 rt2x00_set_field16(®, MAC_CSR18_AUTO_WAKE, 0);
652 rt2500usb_register_write(rt2x00dev, MAC_CSR18, reg);
654 rt2x00_set_field16(®, MAC_CSR18_AUTO_WAKE, 1);
655 rt2500usb_register_write(rt2x00dev, MAC_CSR18, reg);
658 rt2x00dev->ops->lib->set_device_state(rt2x00dev, state);
661 static void rt2500usb_config(struct rt2x00_dev *rt2x00dev,
662 struct rt2x00lib_conf *libconf,
663 const unsigned int flags)
665 if (flags & IEEE80211_CONF_CHANGE_CHANNEL)
666 rt2500usb_config_channel(rt2x00dev, &libconf->rf,
667 libconf->conf->power_level);
668 if ((flags & IEEE80211_CONF_CHANGE_POWER) &&
669 !(flags & IEEE80211_CONF_CHANGE_CHANNEL))
670 rt2500usb_config_txpower(rt2x00dev,
671 libconf->conf->power_level);
672 if (flags & IEEE80211_CONF_CHANGE_PS)
673 rt2500usb_config_ps(rt2x00dev, libconf);
679 static void rt2500usb_link_stats(struct rt2x00_dev *rt2x00dev,
680 struct link_qual *qual)
685 * Update FCS error count from register.
687 rt2500usb_register_read(rt2x00dev, STA_CSR0, ®);
688 qual->rx_failed = rt2x00_get_field16(reg, STA_CSR0_FCS_ERROR);
691 * Update False CCA count from register.
693 rt2500usb_register_read(rt2x00dev, STA_CSR3, ®);
694 qual->false_cca = rt2x00_get_field16(reg, STA_CSR3_FALSE_CCA_ERROR);
697 static void rt2500usb_reset_tuner(struct rt2x00_dev *rt2x00dev,
698 struct link_qual *qual)
703 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R24, &eeprom);
704 value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_R24_LOW);
705 rt2500usb_bbp_write(rt2x00dev, 24, value);
707 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R25, &eeprom);
708 value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_R25_LOW);
709 rt2500usb_bbp_write(rt2x00dev, 25, value);
711 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R61, &eeprom);
712 value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_R61_LOW);
713 rt2500usb_bbp_write(rt2x00dev, 61, value);
715 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_VGC, &eeprom);
716 value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_VGCUPPER);
717 rt2500usb_bbp_write(rt2x00dev, 17, value);
719 qual->vgc_level = value;
723 * NOTE: This function is directly ported from legacy driver, but
724 * despite it being declared it was never called. Although link tuning
725 * sounds like a good idea, and usually works well for the other drivers,
726 * it does _not_ work with rt2500usb. Enabling this function will result
727 * in TX capabilities only until association kicks in. Immediately
728 * after the successful association all TX frames will be kept in the
729 * hardware queue and never transmitted.
732 static void rt2500usb_link_tuner(struct rt2x00_dev *rt2x00dev)
734 int rssi = rt2x00_get_link_rssi(&rt2x00dev->link);
747 * Read current r17 value, as well as the sensitivity values
748 * for the r17 register.
750 rt2500usb_bbp_read(rt2x00dev, 17, &r17);
751 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R17, &r17_sens);
753 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_VGC, &vgc_bound);
754 up_bound = rt2x00_get_field16(vgc_bound, EEPROM_BBPTUNE_VGCUPPER);
755 low_bound = rt2x00_get_field16(vgc_bound, EEPROM_BBPTUNE_VGCLOWER);
758 * If we are not associated, we should go straight to the
759 * dynamic CCA tuning.
761 if (!rt2x00dev->intf_associated)
762 goto dynamic_cca_tune;
765 * Determine the BBP tuning threshold and correctly
766 * set BBP 24, 25 and 61.
768 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE, &bbp_thresh);
769 bbp_thresh = rt2x00_get_field16(bbp_thresh, EEPROM_BBPTUNE_THRESHOLD);
771 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R24, &r24);
772 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R25, &r25);
773 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R61, &r61);
775 if ((rssi + bbp_thresh) > 0) {
776 r24 = rt2x00_get_field16(r24, EEPROM_BBPTUNE_R24_HIGH);
777 r25 = rt2x00_get_field16(r25, EEPROM_BBPTUNE_R25_HIGH);
778 r61 = rt2x00_get_field16(r61, EEPROM_BBPTUNE_R61_HIGH);
780 r24 = rt2x00_get_field16(r24, EEPROM_BBPTUNE_R24_LOW);
781 r25 = rt2x00_get_field16(r25, EEPROM_BBPTUNE_R25_LOW);
782 r61 = rt2x00_get_field16(r61, EEPROM_BBPTUNE_R61_LOW);
785 rt2500usb_bbp_write(rt2x00dev, 24, r24);
786 rt2500usb_bbp_write(rt2x00dev, 25, r25);
787 rt2500usb_bbp_write(rt2x00dev, 61, r61);
790 * A too low RSSI will cause too much false CCA which will
791 * then corrupt the R17 tuning. To remidy this the tuning should
792 * be stopped (While making sure the R17 value will not exceed limits)
796 rt2500usb_bbp_write(rt2x00dev, 17, 0x60);
801 * Special big-R17 for short distance
804 sens = rt2x00_get_field16(r17_sens, EEPROM_BBPTUNE_R17_LOW);
806 rt2500usb_bbp_write(rt2x00dev, 17, sens);
811 * Special mid-R17 for middle distance
814 sens = rt2x00_get_field16(r17_sens, EEPROM_BBPTUNE_R17_HIGH);
816 rt2500usb_bbp_write(rt2x00dev, 17, sens);
821 * Leave short or middle distance condition, restore r17
822 * to the dynamic tuning range.
826 up_bound -= (-77 - rssi);
828 if (up_bound < low_bound)
829 up_bound = low_bound;
831 if (r17 > up_bound) {
832 rt2500usb_bbp_write(rt2x00dev, 17, up_bound);
833 rt2x00dev->link.vgc_level = up_bound;
840 * R17 is inside the dynamic tuning range,
841 * start tuning the link based on the false cca counter.
843 if (rt2x00dev->link.qual.false_cca > 512 && r17 < up_bound) {
844 rt2500usb_bbp_write(rt2x00dev, 17, ++r17);
845 rt2x00dev->link.vgc_level = r17;
846 } else if (rt2x00dev->link.qual.false_cca < 100 && r17 > low_bound) {
847 rt2500usb_bbp_write(rt2x00dev, 17, --r17);
848 rt2x00dev->link.vgc_level = r17;
852 #define rt2500usb_link_tuner NULL
856 * Initialization functions.
858 static int rt2500usb_init_registers(struct rt2x00_dev *rt2x00dev)
862 rt2x00usb_vendor_request_sw(rt2x00dev, USB_DEVICE_MODE, 0x0001,
863 USB_MODE_TEST, REGISTER_TIMEOUT);
864 rt2x00usb_vendor_request_sw(rt2x00dev, USB_SINGLE_WRITE, 0x0308,
865 0x00f0, REGISTER_TIMEOUT);
867 rt2500usb_register_read(rt2x00dev, TXRX_CSR2, ®);
868 rt2x00_set_field16(®, TXRX_CSR2_DISABLE_RX, 1);
869 rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
871 rt2500usb_register_write(rt2x00dev, MAC_CSR13, 0x1111);
872 rt2500usb_register_write(rt2x00dev, MAC_CSR14, 0x1e11);
874 rt2500usb_register_read(rt2x00dev, MAC_CSR1, ®);
875 rt2x00_set_field16(®, MAC_CSR1_SOFT_RESET, 1);
876 rt2x00_set_field16(®, MAC_CSR1_BBP_RESET, 1);
877 rt2x00_set_field16(®, MAC_CSR1_HOST_READY, 0);
878 rt2500usb_register_write(rt2x00dev, MAC_CSR1, reg);
880 rt2500usb_register_read(rt2x00dev, MAC_CSR1, ®);
881 rt2x00_set_field16(®, MAC_CSR1_SOFT_RESET, 0);
882 rt2x00_set_field16(®, MAC_CSR1_BBP_RESET, 0);
883 rt2x00_set_field16(®, MAC_CSR1_HOST_READY, 0);
884 rt2500usb_register_write(rt2x00dev, MAC_CSR1, reg);
886 rt2500usb_register_read(rt2x00dev, TXRX_CSR5, ®);
887 rt2x00_set_field16(®, TXRX_CSR5_BBP_ID0, 13);
888 rt2x00_set_field16(®, TXRX_CSR5_BBP_ID0_VALID, 1);
889 rt2x00_set_field16(®, TXRX_CSR5_BBP_ID1, 12);
890 rt2x00_set_field16(®, TXRX_CSR5_BBP_ID1_VALID, 1);
891 rt2500usb_register_write(rt2x00dev, TXRX_CSR5, reg);
893 rt2500usb_register_read(rt2x00dev, TXRX_CSR6, ®);
894 rt2x00_set_field16(®, TXRX_CSR6_BBP_ID0, 10);
895 rt2x00_set_field16(®, TXRX_CSR6_BBP_ID0_VALID, 1);
896 rt2x00_set_field16(®, TXRX_CSR6_BBP_ID1, 11);
897 rt2x00_set_field16(®, TXRX_CSR6_BBP_ID1_VALID, 1);
898 rt2500usb_register_write(rt2x00dev, TXRX_CSR6, reg);
900 rt2500usb_register_read(rt2x00dev, TXRX_CSR7, ®);
901 rt2x00_set_field16(®, TXRX_CSR7_BBP_ID0, 7);
902 rt2x00_set_field16(®, TXRX_CSR7_BBP_ID0_VALID, 1);
903 rt2x00_set_field16(®, TXRX_CSR7_BBP_ID1, 6);
904 rt2x00_set_field16(®, TXRX_CSR7_BBP_ID1_VALID, 1);
905 rt2500usb_register_write(rt2x00dev, TXRX_CSR7, reg);
907 rt2500usb_register_read(rt2x00dev, TXRX_CSR8, ®);
908 rt2x00_set_field16(®, TXRX_CSR8_BBP_ID0, 5);
909 rt2x00_set_field16(®, TXRX_CSR8_BBP_ID0_VALID, 1);
910 rt2x00_set_field16(®, TXRX_CSR8_BBP_ID1, 0);
911 rt2x00_set_field16(®, TXRX_CSR8_BBP_ID1_VALID, 0);
912 rt2500usb_register_write(rt2x00dev, TXRX_CSR8, reg);
914 rt2500usb_register_read(rt2x00dev, TXRX_CSR19, ®);
915 rt2x00_set_field16(®, TXRX_CSR19_TSF_COUNT, 0);
916 rt2x00_set_field16(®, TXRX_CSR19_TSF_SYNC, 0);
917 rt2x00_set_field16(®, TXRX_CSR19_TBCN, 0);
918 rt2x00_set_field16(®, TXRX_CSR19_BEACON_GEN, 0);
919 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
921 rt2500usb_register_write(rt2x00dev, TXRX_CSR21, 0xe78f);
922 rt2500usb_register_write(rt2x00dev, MAC_CSR9, 0xff1d);
924 if (rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_AWAKE))
927 rt2500usb_register_read(rt2x00dev, MAC_CSR1, ®);
928 rt2x00_set_field16(®, MAC_CSR1_SOFT_RESET, 0);
929 rt2x00_set_field16(®, MAC_CSR1_BBP_RESET, 0);
930 rt2x00_set_field16(®, MAC_CSR1_HOST_READY, 1);
931 rt2500usb_register_write(rt2x00dev, MAC_CSR1, reg);
933 if (rt2x00_rev(&rt2x00dev->chip) >= RT2570_VERSION_C) {
934 rt2500usb_register_read(rt2x00dev, PHY_CSR2, ®);
935 rt2x00_set_field16(®, PHY_CSR2_LNA, 0);
938 rt2x00_set_field16(®, PHY_CSR2_LNA, 1);
939 rt2x00_set_field16(®, PHY_CSR2_LNA_MODE, 3);
941 rt2500usb_register_write(rt2x00dev, PHY_CSR2, reg);
943 rt2500usb_register_write(rt2x00dev, MAC_CSR11, 0x0002);
944 rt2500usb_register_write(rt2x00dev, MAC_CSR22, 0x0053);
945 rt2500usb_register_write(rt2x00dev, MAC_CSR15, 0x01ee);
946 rt2500usb_register_write(rt2x00dev, MAC_CSR16, 0x0000);
948 rt2500usb_register_read(rt2x00dev, MAC_CSR8, ®);
949 rt2x00_set_field16(®, MAC_CSR8_MAX_FRAME_UNIT,
950 rt2x00dev->rx->data_size);
951 rt2500usb_register_write(rt2x00dev, MAC_CSR8, reg);
953 rt2500usb_register_read(rt2x00dev, TXRX_CSR0, ®);
954 rt2x00_set_field16(®, TXRX_CSR0_IV_OFFSET, IEEE80211_HEADER);
955 rt2x00_set_field16(®, TXRX_CSR0_KEY_ID, 0);
956 rt2500usb_register_write(rt2x00dev, TXRX_CSR0, reg);
958 rt2500usb_register_read(rt2x00dev, MAC_CSR18, ®);
959 rt2x00_set_field16(®, MAC_CSR18_DELAY_AFTER_BEACON, 90);
960 rt2500usb_register_write(rt2x00dev, MAC_CSR18, reg);
962 rt2500usb_register_read(rt2x00dev, PHY_CSR4, ®);
963 rt2x00_set_field16(®, PHY_CSR4_LOW_RF_LE, 1);
964 rt2500usb_register_write(rt2x00dev, PHY_CSR4, reg);
966 rt2500usb_register_read(rt2x00dev, TXRX_CSR1, ®);
967 rt2x00_set_field16(®, TXRX_CSR1_AUTO_SEQUENCE, 1);
968 rt2500usb_register_write(rt2x00dev, TXRX_CSR1, reg);
973 static int rt2500usb_wait_bbp_ready(struct rt2x00_dev *rt2x00dev)
978 for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
979 rt2500usb_bbp_read(rt2x00dev, 0, &value);
980 if ((value != 0xff) && (value != 0x00))
982 udelay(REGISTER_BUSY_DELAY);
985 ERROR(rt2x00dev, "BBP register access failed, aborting.\n");
989 static int rt2500usb_init_bbp(struct rt2x00_dev *rt2x00dev)
996 if (unlikely(rt2500usb_wait_bbp_ready(rt2x00dev)))
999 rt2500usb_bbp_write(rt2x00dev, 3, 0x02);
1000 rt2500usb_bbp_write(rt2x00dev, 4, 0x19);
1001 rt2500usb_bbp_write(rt2x00dev, 14, 0x1c);
1002 rt2500usb_bbp_write(rt2x00dev, 15, 0x30);
1003 rt2500usb_bbp_write(rt2x00dev, 16, 0xac);
1004 rt2500usb_bbp_write(rt2x00dev, 18, 0x18);
1005 rt2500usb_bbp_write(rt2x00dev, 19, 0xff);
1006 rt2500usb_bbp_write(rt2x00dev, 20, 0x1e);
1007 rt2500usb_bbp_write(rt2x00dev, 21, 0x08);
1008 rt2500usb_bbp_write(rt2x00dev, 22, 0x08);
1009 rt2500usb_bbp_write(rt2x00dev, 23, 0x08);
1010 rt2500usb_bbp_write(rt2x00dev, 24, 0x80);
1011 rt2500usb_bbp_write(rt2x00dev, 25, 0x50);
1012 rt2500usb_bbp_write(rt2x00dev, 26, 0x08);
1013 rt2500usb_bbp_write(rt2x00dev, 27, 0x23);
1014 rt2500usb_bbp_write(rt2x00dev, 30, 0x10);
1015 rt2500usb_bbp_write(rt2x00dev, 31, 0x2b);
1016 rt2500usb_bbp_write(rt2x00dev, 32, 0xb9);
1017 rt2500usb_bbp_write(rt2x00dev, 34, 0x12);
1018 rt2500usb_bbp_write(rt2x00dev, 35, 0x50);
1019 rt2500usb_bbp_write(rt2x00dev, 39, 0xc4);
1020 rt2500usb_bbp_write(rt2x00dev, 40, 0x02);
1021 rt2500usb_bbp_write(rt2x00dev, 41, 0x60);
1022 rt2500usb_bbp_write(rt2x00dev, 53, 0x10);
1023 rt2500usb_bbp_write(rt2x00dev, 54, 0x18);
1024 rt2500usb_bbp_write(rt2x00dev, 56, 0x08);
1025 rt2500usb_bbp_write(rt2x00dev, 57, 0x10);
1026 rt2500usb_bbp_write(rt2x00dev, 58, 0x08);
1027 rt2500usb_bbp_write(rt2x00dev, 61, 0x60);
1028 rt2500usb_bbp_write(rt2x00dev, 62, 0x10);
1029 rt2500usb_bbp_write(rt2x00dev, 75, 0xff);
1031 for (i = 0; i < EEPROM_BBP_SIZE; i++) {
1032 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBP_START + i, &eeprom);
1034 if (eeprom != 0xffff && eeprom != 0x0000) {
1035 reg_id = rt2x00_get_field16(eeprom, EEPROM_BBP_REG_ID);
1036 value = rt2x00_get_field16(eeprom, EEPROM_BBP_VALUE);
1037 rt2500usb_bbp_write(rt2x00dev, reg_id, value);
1045 * Device state switch handlers.
1047 static void rt2500usb_toggle_rx(struct rt2x00_dev *rt2x00dev,
1048 enum dev_state state)
1052 rt2500usb_register_read(rt2x00dev, TXRX_CSR2, ®);
1053 rt2x00_set_field16(®, TXRX_CSR2_DISABLE_RX,
1054 (state == STATE_RADIO_RX_OFF) ||
1055 (state == STATE_RADIO_RX_OFF_LINK));
1056 rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
1059 static int rt2500usb_enable_radio(struct rt2x00_dev *rt2x00dev)
1062 * Initialize all registers.
1064 if (unlikely(rt2500usb_init_registers(rt2x00dev) ||
1065 rt2500usb_init_bbp(rt2x00dev)))
1071 static void rt2500usb_disable_radio(struct rt2x00_dev *rt2x00dev)
1073 rt2500usb_register_write(rt2x00dev, MAC_CSR13, 0x2121);
1074 rt2500usb_register_write(rt2x00dev, MAC_CSR14, 0x2121);
1077 * Disable synchronisation.
1079 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, 0);
1081 rt2x00usb_disable_radio(rt2x00dev);
1084 static int rt2500usb_set_state(struct rt2x00_dev *rt2x00dev,
1085 enum dev_state state)
1094 put_to_sleep = (state != STATE_AWAKE);
1097 rt2x00_set_field16(®, MAC_CSR17_BBP_DESIRE_STATE, state);
1098 rt2x00_set_field16(®, MAC_CSR17_RF_DESIRE_STATE, state);
1099 rt2x00_set_field16(®, MAC_CSR17_PUT_TO_SLEEP, put_to_sleep);
1100 rt2500usb_register_write(rt2x00dev, MAC_CSR17, reg);
1101 rt2x00_set_field16(®, MAC_CSR17_SET_STATE, 1);
1102 rt2500usb_register_write(rt2x00dev, MAC_CSR17, reg);
1105 * Device is not guaranteed to be in the requested state yet.
1106 * We must wait until the register indicates that the
1107 * device has entered the correct state.
1109 for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
1110 rt2500usb_register_read(rt2x00dev, MAC_CSR17, ®2);
1111 bbp_state = rt2x00_get_field16(reg2, MAC_CSR17_BBP_CURR_STATE);
1112 rf_state = rt2x00_get_field16(reg2, MAC_CSR17_RF_CURR_STATE);
1113 if (bbp_state == state && rf_state == state)
1115 rt2500usb_register_write(rt2x00dev, MAC_CSR17, reg);
1122 static int rt2500usb_set_device_state(struct rt2x00_dev *rt2x00dev,
1123 enum dev_state state)
1128 case STATE_RADIO_ON:
1129 retval = rt2500usb_enable_radio(rt2x00dev);
1131 case STATE_RADIO_OFF:
1132 rt2500usb_disable_radio(rt2x00dev);
1134 case STATE_RADIO_RX_ON:
1135 case STATE_RADIO_RX_ON_LINK:
1136 case STATE_RADIO_RX_OFF:
1137 case STATE_RADIO_RX_OFF_LINK:
1138 rt2500usb_toggle_rx(rt2x00dev, state);
1140 case STATE_RADIO_IRQ_ON:
1141 case STATE_RADIO_IRQ_OFF:
1142 /* No support, but no error either */
1144 case STATE_DEEP_SLEEP:
1148 retval = rt2500usb_set_state(rt2x00dev, state);
1155 if (unlikely(retval))
1156 ERROR(rt2x00dev, "Device failed to enter state %d (%d).\n",
1163 * TX descriptor initialization
1165 static void rt2500usb_write_tx_desc(struct rt2x00_dev *rt2x00dev,
1166 struct sk_buff *skb,
1167 struct txentry_desc *txdesc)
1169 struct skb_frame_desc *skbdesc = get_skb_frame_desc(skb);
1170 __le32 *txd = skbdesc->desc;
1174 * Start writing the descriptor words.
1176 rt2x00_desc_read(txd, 1, &word);
1177 rt2x00_set_field32(&word, TXD_W1_IV_OFFSET, txdesc->iv_offset);
1178 rt2x00_set_field32(&word, TXD_W1_AIFS, txdesc->aifs);
1179 rt2x00_set_field32(&word, TXD_W1_CWMIN, txdesc->cw_min);
1180 rt2x00_set_field32(&word, TXD_W1_CWMAX, txdesc->cw_max);
1181 rt2x00_desc_write(txd, 1, word);
1183 rt2x00_desc_read(txd, 2, &word);
1184 rt2x00_set_field32(&word, TXD_W2_PLCP_SIGNAL, txdesc->signal);
1185 rt2x00_set_field32(&word, TXD_W2_PLCP_SERVICE, txdesc->service);
1186 rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_LOW, txdesc->length_low);
1187 rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_HIGH, txdesc->length_high);
1188 rt2x00_desc_write(txd, 2, word);
1190 if (test_bit(ENTRY_TXD_ENCRYPT, &txdesc->flags)) {
1191 _rt2x00_desc_write(txd, 3, skbdesc->iv[0]);
1192 _rt2x00_desc_write(txd, 4, skbdesc->iv[1]);
1195 rt2x00_desc_read(txd, 0, &word);
1196 rt2x00_set_field32(&word, TXD_W0_RETRY_LIMIT, txdesc->retry_limit);
1197 rt2x00_set_field32(&word, TXD_W0_MORE_FRAG,
1198 test_bit(ENTRY_TXD_MORE_FRAG, &txdesc->flags));
1199 rt2x00_set_field32(&word, TXD_W0_ACK,
1200 test_bit(ENTRY_TXD_ACK, &txdesc->flags));
1201 rt2x00_set_field32(&word, TXD_W0_TIMESTAMP,
1202 test_bit(ENTRY_TXD_REQ_TIMESTAMP, &txdesc->flags));
1203 rt2x00_set_field32(&word, TXD_W0_OFDM,
1204 (txdesc->rate_mode == RATE_MODE_OFDM));
1205 rt2x00_set_field32(&word, TXD_W0_NEW_SEQ,
1206 test_bit(ENTRY_TXD_FIRST_FRAGMENT, &txdesc->flags));
1207 rt2x00_set_field32(&word, TXD_W0_IFS, txdesc->ifs);
1208 rt2x00_set_field32(&word, TXD_W0_DATABYTE_COUNT, skb->len);
1209 rt2x00_set_field32(&word, TXD_W0_CIPHER, !!txdesc->cipher);
1210 rt2x00_set_field32(&word, TXD_W0_KEY_ID, txdesc->key_idx);
1211 rt2x00_desc_write(txd, 0, word);
1215 * TX data initialization
1217 static void rt2500usb_beacondone(struct urb *urb);
1219 static void rt2500usb_write_beacon(struct queue_entry *entry)
1221 struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
1222 struct usb_device *usb_dev = to_usb_device_intf(rt2x00dev->dev);
1223 struct queue_entry_priv_usb_bcn *bcn_priv = entry->priv_data;
1224 struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
1225 int pipe = usb_sndbulkpipe(usb_dev, entry->queue->usb_endpoint);
1230 * Add the descriptor in front of the skb.
1232 skb_push(entry->skb, entry->queue->desc_size);
1233 memcpy(entry->skb->data, skbdesc->desc, skbdesc->desc_len);
1234 skbdesc->desc = entry->skb->data;
1237 * Disable beaconing while we are reloading the beacon data,
1238 * otherwise we might be sending out invalid data.
1240 rt2500usb_register_read(rt2x00dev, TXRX_CSR19, ®);
1241 rt2x00_set_field16(®, TXRX_CSR19_BEACON_GEN, 0);
1242 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1245 * USB devices cannot blindly pass the skb->len as the
1246 * length of the data to usb_fill_bulk_urb. Pass the skb
1247 * to the driver to determine what the length should be.
1249 length = rt2x00dev->ops->lib->get_tx_data_len(entry);
1251 usb_fill_bulk_urb(bcn_priv->urb, usb_dev, pipe,
1252 entry->skb->data, length, rt2500usb_beacondone,
1256 * Second we need to create the guardian byte.
1257 * We only need a single byte, so lets recycle
1258 * the 'flags' field we are not using for beacons.
1260 bcn_priv->guardian_data = 0;
1261 usb_fill_bulk_urb(bcn_priv->guardian_urb, usb_dev, pipe,
1262 &bcn_priv->guardian_data, 1, rt2500usb_beacondone,
1266 * Send out the guardian byte.
1268 usb_submit_urb(bcn_priv->guardian_urb, GFP_ATOMIC);
1271 static int rt2500usb_get_tx_data_len(struct queue_entry *entry)
1276 * The length _must_ be a multiple of 2,
1277 * but it must _not_ be a multiple of the USB packet size.
1279 length = roundup(entry->skb->len, 2);
1280 length += (2 * !(length % entry->queue->usb_maxpacket));
1285 static void rt2500usb_kick_tx_queue(struct rt2x00_dev *rt2x00dev,
1286 const enum data_queue_qid queue)
1290 if (queue != QID_BEACON) {
1291 rt2x00usb_kick_tx_queue(rt2x00dev, queue);
1295 rt2500usb_register_read(rt2x00dev, TXRX_CSR19, ®);
1296 if (!rt2x00_get_field16(reg, TXRX_CSR19_BEACON_GEN)) {
1297 rt2x00_set_field16(®, TXRX_CSR19_TSF_COUNT, 1);
1298 rt2x00_set_field16(®, TXRX_CSR19_TBCN, 1);
1300 rt2x00_set_field16(®, TXRX_CSR19_BEACON_GEN, 1);
1302 * Beacon generation will fail initially.
1303 * To prevent this we need to change the TXRX_CSR19
1304 * register several times (reg0 is the same as reg
1305 * except for TXRX_CSR19_BEACON_GEN, which is 0 in reg0
1308 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1309 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg0);
1310 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1311 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg0);
1312 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1317 * RX control handlers
1319 static void rt2500usb_fill_rxdone(struct queue_entry *entry,
1320 struct rxdone_entry_desc *rxdesc)
1322 struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
1323 struct queue_entry_priv_usb *entry_priv = entry->priv_data;
1324 struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
1326 (__le32 *)(entry->skb->data +
1327 (entry_priv->urb->actual_length -
1328 entry->queue->desc_size));
1333 * Copy descriptor to the skbdesc->desc buffer, making it safe from moving of
1334 * frame data in rt2x00usb.
1336 memcpy(skbdesc->desc, rxd, skbdesc->desc_len);
1337 rxd = (__le32 *)skbdesc->desc;
1340 * It is now safe to read the descriptor on all architectures.
1342 rt2x00_desc_read(rxd, 0, &word0);
1343 rt2x00_desc_read(rxd, 1, &word1);
1345 if (rt2x00_get_field32(word0, RXD_W0_CRC_ERROR))
1346 rxdesc->flags |= RX_FLAG_FAILED_FCS_CRC;
1347 if (rt2x00_get_field32(word0, RXD_W0_PHYSICAL_ERROR))
1348 rxdesc->flags |= RX_FLAG_FAILED_PLCP_CRC;
1350 if (test_bit(CONFIG_SUPPORT_HW_CRYPTO, &rt2x00dev->flags)) {
1351 rxdesc->cipher = rt2x00_get_field32(word0, RXD_W0_CIPHER);
1352 if (rt2x00_get_field32(word0, RXD_W0_CIPHER_ERROR))
1353 rxdesc->cipher_status = RX_CRYPTO_FAIL_KEY;
1356 if (rxdesc->cipher != CIPHER_NONE) {
1357 _rt2x00_desc_read(rxd, 2, &rxdesc->iv[0]);
1358 _rt2x00_desc_read(rxd, 3, &rxdesc->iv[1]);
1359 rxdesc->dev_flags |= RXDONE_CRYPTO_IV;
1361 /* ICV is located at the end of frame */
1363 rxdesc->flags |= RX_FLAG_MMIC_STRIPPED;
1364 if (rxdesc->cipher_status == RX_CRYPTO_SUCCESS)
1365 rxdesc->flags |= RX_FLAG_DECRYPTED;
1366 else if (rxdesc->cipher_status == RX_CRYPTO_FAIL_MIC)
1367 rxdesc->flags |= RX_FLAG_MMIC_ERROR;
1371 * Obtain the status about this packet.
1372 * When frame was received with an OFDM bitrate,
1373 * the signal is the PLCP value. If it was received with
1374 * a CCK bitrate the signal is the rate in 100kbit/s.
1376 rxdesc->signal = rt2x00_get_field32(word1, RXD_W1_SIGNAL);
1378 rt2x00_get_field32(word1, RXD_W1_RSSI) - rt2x00dev->rssi_offset;
1379 rxdesc->size = rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT);
1381 if (rt2x00_get_field32(word0, RXD_W0_OFDM))
1382 rxdesc->dev_flags |= RXDONE_SIGNAL_PLCP;
1384 rxdesc->dev_flags |= RXDONE_SIGNAL_BITRATE;
1385 if (rt2x00_get_field32(word0, RXD_W0_MY_BSS))
1386 rxdesc->dev_flags |= RXDONE_MY_BSS;
1389 * Adjust the skb memory window to the frame boundaries.
1391 skb_trim(entry->skb, rxdesc->size);
1395 * Interrupt functions.
1397 static void rt2500usb_beacondone(struct urb *urb)
1399 struct queue_entry *entry = (struct queue_entry *)urb->context;
1400 struct queue_entry_priv_usb_bcn *bcn_priv = entry->priv_data;
1402 if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &entry->queue->rt2x00dev->flags))
1406 * Check if this was the guardian beacon,
1407 * if that was the case we need to send the real beacon now.
1408 * Otherwise we should free the sk_buffer, the device
1409 * should be doing the rest of the work now.
1411 if (bcn_priv->guardian_urb == urb) {
1412 usb_submit_urb(bcn_priv->urb, GFP_ATOMIC);
1413 } else if (bcn_priv->urb == urb) {
1414 dev_kfree_skb(entry->skb);
1420 * Device probe functions.
1422 static int rt2500usb_validate_eeprom(struct rt2x00_dev *rt2x00dev)
1428 rt2x00usb_eeprom_read(rt2x00dev, rt2x00dev->eeprom, EEPROM_SIZE);
1431 * Start validation of the data that has been read.
1433 mac = rt2x00_eeprom_addr(rt2x00dev, EEPROM_MAC_ADDR_0);
1434 if (!is_valid_ether_addr(mac)) {
1435 random_ether_addr(mac);
1436 EEPROM(rt2x00dev, "MAC: %pM\n", mac);
1439 rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &word);
1440 if (word == 0xffff) {
1441 rt2x00_set_field16(&word, EEPROM_ANTENNA_NUM, 2);
1442 rt2x00_set_field16(&word, EEPROM_ANTENNA_TX_DEFAULT,
1443 ANTENNA_SW_DIVERSITY);
1444 rt2x00_set_field16(&word, EEPROM_ANTENNA_RX_DEFAULT,
1445 ANTENNA_SW_DIVERSITY);
1446 rt2x00_set_field16(&word, EEPROM_ANTENNA_LED_MODE,
1448 rt2x00_set_field16(&word, EEPROM_ANTENNA_DYN_TXAGC, 0);
1449 rt2x00_set_field16(&word, EEPROM_ANTENNA_HARDWARE_RADIO, 0);
1450 rt2x00_set_field16(&word, EEPROM_ANTENNA_RF_TYPE, RF2522);
1451 rt2x00_eeprom_write(rt2x00dev, EEPROM_ANTENNA, word);
1452 EEPROM(rt2x00dev, "Antenna: 0x%04x\n", word);
1455 rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &word);
1456 if (word == 0xffff) {
1457 rt2x00_set_field16(&word, EEPROM_NIC_CARDBUS_ACCEL, 0);
1458 rt2x00_set_field16(&word, EEPROM_NIC_DYN_BBP_TUNE, 0);
1459 rt2x00_set_field16(&word, EEPROM_NIC_CCK_TX_POWER, 0);
1460 rt2x00_eeprom_write(rt2x00dev, EEPROM_NIC, word);
1461 EEPROM(rt2x00dev, "NIC: 0x%04x\n", word);
1464 rt2x00_eeprom_read(rt2x00dev, EEPROM_CALIBRATE_OFFSET, &word);
1465 if (word == 0xffff) {
1466 rt2x00_set_field16(&word, EEPROM_CALIBRATE_OFFSET_RSSI,
1467 DEFAULT_RSSI_OFFSET);
1468 rt2x00_eeprom_write(rt2x00dev, EEPROM_CALIBRATE_OFFSET, word);
1469 EEPROM(rt2x00dev, "Calibrate offset: 0x%04x\n", word);
1472 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE, &word);
1473 if (word == 0xffff) {
1474 rt2x00_set_field16(&word, EEPROM_BBPTUNE_THRESHOLD, 45);
1475 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE, word);
1476 EEPROM(rt2x00dev, "BBPtune: 0x%04x\n", word);
1480 * Switch lower vgc bound to current BBP R17 value,
1481 * lower the value a bit for better quality.
1483 rt2500usb_bbp_read(rt2x00dev, 17, &bbp);
1486 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_VGC, &word);
1487 if (word == 0xffff) {
1488 rt2x00_set_field16(&word, EEPROM_BBPTUNE_VGCUPPER, 0x40);
1489 rt2x00_set_field16(&word, EEPROM_BBPTUNE_VGCLOWER, bbp);
1490 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_VGC, word);
1491 EEPROM(rt2x00dev, "BBPtune vgc: 0x%04x\n", word);
1493 rt2x00_set_field16(&word, EEPROM_BBPTUNE_VGCLOWER, bbp);
1494 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_VGC, word);
1497 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R17, &word);
1498 if (word == 0xffff) {
1499 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R17_LOW, 0x48);
1500 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R17_HIGH, 0x41);
1501 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R17, word);
1502 EEPROM(rt2x00dev, "BBPtune r17: 0x%04x\n", word);
1505 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R24, &word);
1506 if (word == 0xffff) {
1507 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R24_LOW, 0x40);
1508 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R24_HIGH, 0x80);
1509 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R24, word);
1510 EEPROM(rt2x00dev, "BBPtune r24: 0x%04x\n", word);
1513 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R25, &word);
1514 if (word == 0xffff) {
1515 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R25_LOW, 0x40);
1516 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R25_HIGH, 0x50);
1517 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R25, word);
1518 EEPROM(rt2x00dev, "BBPtune r25: 0x%04x\n", word);
1521 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R61, &word);
1522 if (word == 0xffff) {
1523 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R61_LOW, 0x60);
1524 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R61_HIGH, 0x6d);
1525 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R61, word);
1526 EEPROM(rt2x00dev, "BBPtune r61: 0x%04x\n", word);
1532 static int rt2500usb_init_eeprom(struct rt2x00_dev *rt2x00dev)
1539 * Read EEPROM word for configuration.
1541 rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &eeprom);
1544 * Identify RF chipset.
1546 value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RF_TYPE);
1547 rt2500usb_register_read(rt2x00dev, MAC_CSR0, ®);
1548 rt2x00_set_chip(rt2x00dev, RT2570, value, reg);
1550 if (!rt2x00_check_rev(&rt2x00dev->chip, 0x000ffff0, 0) ||
1551 rt2x00_check_rev(&rt2x00dev->chip, 0x0000000f, 0)) {
1553 ERROR(rt2x00dev, "Invalid RT chipset detected.\n");
1557 if (!rt2x00_rf(&rt2x00dev->chip, RF2522) &&
1558 !rt2x00_rf(&rt2x00dev->chip, RF2523) &&
1559 !rt2x00_rf(&rt2x00dev->chip, RF2524) &&
1560 !rt2x00_rf(&rt2x00dev->chip, RF2525) &&
1561 !rt2x00_rf(&rt2x00dev->chip, RF2525E) &&
1562 !rt2x00_rf(&rt2x00dev->chip, RF5222)) {
1563 ERROR(rt2x00dev, "Invalid RF chipset detected.\n");
1568 * Identify default antenna configuration.
1570 rt2x00dev->default_ant.tx =
1571 rt2x00_get_field16(eeprom, EEPROM_ANTENNA_TX_DEFAULT);
1572 rt2x00dev->default_ant.rx =
1573 rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RX_DEFAULT);
1576 * When the eeprom indicates SW_DIVERSITY use HW_DIVERSITY instead.
1577 * I am not 100% sure about this, but the legacy drivers do not
1578 * indicate antenna swapping in software is required when
1579 * diversity is enabled.
1581 if (rt2x00dev->default_ant.tx == ANTENNA_SW_DIVERSITY)
1582 rt2x00dev->default_ant.tx = ANTENNA_HW_DIVERSITY;
1583 if (rt2x00dev->default_ant.rx == ANTENNA_SW_DIVERSITY)
1584 rt2x00dev->default_ant.rx = ANTENNA_HW_DIVERSITY;
1587 * Store led mode, for correct led behaviour.
1589 #ifdef CONFIG_RT2X00_LIB_LEDS
1590 value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_LED_MODE);
1592 rt2500usb_init_led(rt2x00dev, &rt2x00dev->led_radio, LED_TYPE_RADIO);
1593 if (value == LED_MODE_TXRX_ACTIVITY ||
1594 value == LED_MODE_DEFAULT ||
1595 value == LED_MODE_ASUS)
1596 rt2500usb_init_led(rt2x00dev, &rt2x00dev->led_qual,
1598 #endif /* CONFIG_RT2X00_LIB_LEDS */
1601 * Detect if this device has an hardware controlled radio.
1603 if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_HARDWARE_RADIO))
1604 __set_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags);
1607 * Check if the BBP tuning should be disabled.
1609 rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &eeprom);
1610 if (rt2x00_get_field16(eeprom, EEPROM_NIC_DYN_BBP_TUNE))
1611 __set_bit(CONFIG_DISABLE_LINK_TUNING, &rt2x00dev->flags);
1614 * Read the RSSI <-> dBm offset information.
1616 rt2x00_eeprom_read(rt2x00dev, EEPROM_CALIBRATE_OFFSET, &eeprom);
1617 rt2x00dev->rssi_offset =
1618 rt2x00_get_field16(eeprom, EEPROM_CALIBRATE_OFFSET_RSSI);
1624 * RF value list for RF2522
1627 static const struct rf_channel rf_vals_bg_2522[] = {
1628 { 1, 0x00002050, 0x000c1fda, 0x00000101, 0 },
1629 { 2, 0x00002050, 0x000c1fee, 0x00000101, 0 },
1630 { 3, 0x00002050, 0x000c2002, 0x00000101, 0 },
1631 { 4, 0x00002050, 0x000c2016, 0x00000101, 0 },
1632 { 5, 0x00002050, 0x000c202a, 0x00000101, 0 },
1633 { 6, 0x00002050, 0x000c203e, 0x00000101, 0 },
1634 { 7, 0x00002050, 0x000c2052, 0x00000101, 0 },
1635 { 8, 0x00002050, 0x000c2066, 0x00000101, 0 },
1636 { 9, 0x00002050, 0x000c207a, 0x00000101, 0 },
1637 { 10, 0x00002050, 0x000c208e, 0x00000101, 0 },
1638 { 11, 0x00002050, 0x000c20a2, 0x00000101, 0 },
1639 { 12, 0x00002050, 0x000c20b6, 0x00000101, 0 },
1640 { 13, 0x00002050, 0x000c20ca, 0x00000101, 0 },
1641 { 14, 0x00002050, 0x000c20fa, 0x00000101, 0 },
1645 * RF value list for RF2523
1648 static const struct rf_channel rf_vals_bg_2523[] = {
1649 { 1, 0x00022010, 0x00000c9e, 0x000e0111, 0x00000a1b },
1650 { 2, 0x00022010, 0x00000ca2, 0x000e0111, 0x00000a1b },
1651 { 3, 0x00022010, 0x00000ca6, 0x000e0111, 0x00000a1b },
1652 { 4, 0x00022010, 0x00000caa, 0x000e0111, 0x00000a1b },
1653 { 5, 0x00022010, 0x00000cae, 0x000e0111, 0x00000a1b },
1654 { 6, 0x00022010, 0x00000cb2, 0x000e0111, 0x00000a1b },
1655 { 7, 0x00022010, 0x00000cb6, 0x000e0111, 0x00000a1b },
1656 { 8, 0x00022010, 0x00000cba, 0x000e0111, 0x00000a1b },
1657 { 9, 0x00022010, 0x00000cbe, 0x000e0111, 0x00000a1b },
1658 { 10, 0x00022010, 0x00000d02, 0x000e0111, 0x00000a1b },
1659 { 11, 0x00022010, 0x00000d06, 0x000e0111, 0x00000a1b },
1660 { 12, 0x00022010, 0x00000d0a, 0x000e0111, 0x00000a1b },
1661 { 13, 0x00022010, 0x00000d0e, 0x000e0111, 0x00000a1b },
1662 { 14, 0x00022010, 0x00000d1a, 0x000e0111, 0x00000a03 },
1666 * RF value list for RF2524
1669 static const struct rf_channel rf_vals_bg_2524[] = {
1670 { 1, 0x00032020, 0x00000c9e, 0x00000101, 0x00000a1b },
1671 { 2, 0x00032020, 0x00000ca2, 0x00000101, 0x00000a1b },
1672 { 3, 0x00032020, 0x00000ca6, 0x00000101, 0x00000a1b },
1673 { 4, 0x00032020, 0x00000caa, 0x00000101, 0x00000a1b },
1674 { 5, 0x00032020, 0x00000cae, 0x00000101, 0x00000a1b },
1675 { 6, 0x00032020, 0x00000cb2, 0x00000101, 0x00000a1b },
1676 { 7, 0x00032020, 0x00000cb6, 0x00000101, 0x00000a1b },
1677 { 8, 0x00032020, 0x00000cba, 0x00000101, 0x00000a1b },
1678 { 9, 0x00032020, 0x00000cbe, 0x00000101, 0x00000a1b },
1679 { 10, 0x00032020, 0x00000d02, 0x00000101, 0x00000a1b },
1680 { 11, 0x00032020, 0x00000d06, 0x00000101, 0x00000a1b },
1681 { 12, 0x00032020, 0x00000d0a, 0x00000101, 0x00000a1b },
1682 { 13, 0x00032020, 0x00000d0e, 0x00000101, 0x00000a1b },
1683 { 14, 0x00032020, 0x00000d1a, 0x00000101, 0x00000a03 },
1687 * RF value list for RF2525
1690 static const struct rf_channel rf_vals_bg_2525[] = {
1691 { 1, 0x00022020, 0x00080c9e, 0x00060111, 0x00000a1b },
1692 { 2, 0x00022020, 0x00080ca2, 0x00060111, 0x00000a1b },
1693 { 3, 0x00022020, 0x00080ca6, 0x00060111, 0x00000a1b },
1694 { 4, 0x00022020, 0x00080caa, 0x00060111, 0x00000a1b },
1695 { 5, 0x00022020, 0x00080cae, 0x00060111, 0x00000a1b },
1696 { 6, 0x00022020, 0x00080cb2, 0x00060111, 0x00000a1b },
1697 { 7, 0x00022020, 0x00080cb6, 0x00060111, 0x00000a1b },
1698 { 8, 0x00022020, 0x00080cba, 0x00060111, 0x00000a1b },
1699 { 9, 0x00022020, 0x00080cbe, 0x00060111, 0x00000a1b },
1700 { 10, 0x00022020, 0x00080d02, 0x00060111, 0x00000a1b },
1701 { 11, 0x00022020, 0x00080d06, 0x00060111, 0x00000a1b },
1702 { 12, 0x00022020, 0x00080d0a, 0x00060111, 0x00000a1b },
1703 { 13, 0x00022020, 0x00080d0e, 0x00060111, 0x00000a1b },
1704 { 14, 0x00022020, 0x00080d1a, 0x00060111, 0x00000a03 },
1708 * RF value list for RF2525e
1711 static const struct rf_channel rf_vals_bg_2525e[] = {
1712 { 1, 0x00022010, 0x0000089a, 0x00060111, 0x00000e1b },
1713 { 2, 0x00022010, 0x0000089e, 0x00060111, 0x00000e07 },
1714 { 3, 0x00022010, 0x0000089e, 0x00060111, 0x00000e1b },
1715 { 4, 0x00022010, 0x000008a2, 0x00060111, 0x00000e07 },
1716 { 5, 0x00022010, 0x000008a2, 0x00060111, 0x00000e1b },
1717 { 6, 0x00022010, 0x000008a6, 0x00060111, 0x00000e07 },
1718 { 7, 0x00022010, 0x000008a6, 0x00060111, 0x00000e1b },
1719 { 8, 0x00022010, 0x000008aa, 0x00060111, 0x00000e07 },
1720 { 9, 0x00022010, 0x000008aa, 0x00060111, 0x00000e1b },
1721 { 10, 0x00022010, 0x000008ae, 0x00060111, 0x00000e07 },
1722 { 11, 0x00022010, 0x000008ae, 0x00060111, 0x00000e1b },
1723 { 12, 0x00022010, 0x000008b2, 0x00060111, 0x00000e07 },
1724 { 13, 0x00022010, 0x000008b2, 0x00060111, 0x00000e1b },
1725 { 14, 0x00022010, 0x000008b6, 0x00060111, 0x00000e23 },
1729 * RF value list for RF5222
1730 * Supports: 2.4 GHz & 5.2 GHz
1732 static const struct rf_channel rf_vals_5222[] = {
1733 { 1, 0x00022020, 0x00001136, 0x00000101, 0x00000a0b },
1734 { 2, 0x00022020, 0x0000113a, 0x00000101, 0x00000a0b },
1735 { 3, 0x00022020, 0x0000113e, 0x00000101, 0x00000a0b },
1736 { 4, 0x00022020, 0x00001182, 0x00000101, 0x00000a0b },
1737 { 5, 0x00022020, 0x00001186, 0x00000101, 0x00000a0b },
1738 { 6, 0x00022020, 0x0000118a, 0x00000101, 0x00000a0b },
1739 { 7, 0x00022020, 0x0000118e, 0x00000101, 0x00000a0b },
1740 { 8, 0x00022020, 0x00001192, 0x00000101, 0x00000a0b },
1741 { 9, 0x00022020, 0x00001196, 0x00000101, 0x00000a0b },
1742 { 10, 0x00022020, 0x0000119a, 0x00000101, 0x00000a0b },
1743 { 11, 0x00022020, 0x0000119e, 0x00000101, 0x00000a0b },
1744 { 12, 0x00022020, 0x000011a2, 0x00000101, 0x00000a0b },
1745 { 13, 0x00022020, 0x000011a6, 0x00000101, 0x00000a0b },
1746 { 14, 0x00022020, 0x000011ae, 0x00000101, 0x00000a1b },
1748 /* 802.11 UNI / HyperLan 2 */
1749 { 36, 0x00022010, 0x00018896, 0x00000101, 0x00000a1f },
1750 { 40, 0x00022010, 0x0001889a, 0x00000101, 0x00000a1f },
1751 { 44, 0x00022010, 0x0001889e, 0x00000101, 0x00000a1f },
1752 { 48, 0x00022010, 0x000188a2, 0x00000101, 0x00000a1f },
1753 { 52, 0x00022010, 0x000188a6, 0x00000101, 0x00000a1f },
1754 { 66, 0x00022010, 0x000188aa, 0x00000101, 0x00000a1f },
1755 { 60, 0x00022010, 0x000188ae, 0x00000101, 0x00000a1f },
1756 { 64, 0x00022010, 0x000188b2, 0x00000101, 0x00000a1f },
1758 /* 802.11 HyperLan 2 */
1759 { 100, 0x00022010, 0x00008802, 0x00000101, 0x00000a0f },
1760 { 104, 0x00022010, 0x00008806, 0x00000101, 0x00000a0f },
1761 { 108, 0x00022010, 0x0000880a, 0x00000101, 0x00000a0f },
1762 { 112, 0x00022010, 0x0000880e, 0x00000101, 0x00000a0f },
1763 { 116, 0x00022010, 0x00008812, 0x00000101, 0x00000a0f },
1764 { 120, 0x00022010, 0x00008816, 0x00000101, 0x00000a0f },
1765 { 124, 0x00022010, 0x0000881a, 0x00000101, 0x00000a0f },
1766 { 128, 0x00022010, 0x0000881e, 0x00000101, 0x00000a0f },
1767 { 132, 0x00022010, 0x00008822, 0x00000101, 0x00000a0f },
1768 { 136, 0x00022010, 0x00008826, 0x00000101, 0x00000a0f },
1771 { 140, 0x00022010, 0x0000882a, 0x00000101, 0x00000a0f },
1772 { 149, 0x00022020, 0x000090a6, 0x00000101, 0x00000a07 },
1773 { 153, 0x00022020, 0x000090ae, 0x00000101, 0x00000a07 },
1774 { 157, 0x00022020, 0x000090b6, 0x00000101, 0x00000a07 },
1775 { 161, 0x00022020, 0x000090be, 0x00000101, 0x00000a07 },
1778 static int rt2500usb_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
1780 struct hw_mode_spec *spec = &rt2x00dev->spec;
1781 struct channel_info *info;
1786 * Initialize all hw fields.
1788 rt2x00dev->hw->flags =
1789 IEEE80211_HW_RX_INCLUDES_FCS |
1790 IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
1791 IEEE80211_HW_SIGNAL_DBM |
1792 IEEE80211_HW_SUPPORTS_PS |
1793 IEEE80211_HW_PS_NULLFUNC_STACK;
1795 rt2x00dev->hw->extra_tx_headroom = TXD_DESC_SIZE;
1797 SET_IEEE80211_DEV(rt2x00dev->hw, rt2x00dev->dev);
1798 SET_IEEE80211_PERM_ADDR(rt2x00dev->hw,
1799 rt2x00_eeprom_addr(rt2x00dev,
1800 EEPROM_MAC_ADDR_0));
1803 * Initialize hw_mode information.
1805 spec->supported_bands = SUPPORT_BAND_2GHZ;
1806 spec->supported_rates = SUPPORT_RATE_CCK | SUPPORT_RATE_OFDM;
1808 if (rt2x00_rf(&rt2x00dev->chip, RF2522)) {
1809 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2522);
1810 spec->channels = rf_vals_bg_2522;
1811 } else if (rt2x00_rf(&rt2x00dev->chip, RF2523)) {
1812 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2523);
1813 spec->channels = rf_vals_bg_2523;
1814 } else if (rt2x00_rf(&rt2x00dev->chip, RF2524)) {
1815 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2524);
1816 spec->channels = rf_vals_bg_2524;
1817 } else if (rt2x00_rf(&rt2x00dev->chip, RF2525)) {
1818 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2525);
1819 spec->channels = rf_vals_bg_2525;
1820 } else if (rt2x00_rf(&rt2x00dev->chip, RF2525E)) {
1821 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2525e);
1822 spec->channels = rf_vals_bg_2525e;
1823 } else if (rt2x00_rf(&rt2x00dev->chip, RF5222)) {
1824 spec->supported_bands |= SUPPORT_BAND_5GHZ;
1825 spec->num_channels = ARRAY_SIZE(rf_vals_5222);
1826 spec->channels = rf_vals_5222;
1830 * Create channel information array
1832 info = kzalloc(spec->num_channels * sizeof(*info), GFP_KERNEL);
1836 spec->channels_info = info;
1838 tx_power = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_START);
1839 for (i = 0; i < 14; i++)
1840 info[i].tx_power1 = TXPOWER_FROM_DEV(tx_power[i]);
1842 if (spec->num_channels > 14) {
1843 for (i = 14; i < spec->num_channels; i++)
1844 info[i].tx_power1 = DEFAULT_TXPOWER;
1850 static int rt2500usb_probe_hw(struct rt2x00_dev *rt2x00dev)
1855 * Allocate eeprom data.
1857 retval = rt2500usb_validate_eeprom(rt2x00dev);
1861 retval = rt2500usb_init_eeprom(rt2x00dev);
1866 * Initialize hw specifications.
1868 retval = rt2500usb_probe_hw_mode(rt2x00dev);
1873 * This device requires the atim queue
1875 __set_bit(DRIVER_REQUIRE_ATIM_QUEUE, &rt2x00dev->flags);
1876 __set_bit(DRIVER_REQUIRE_BEACON_GUARD, &rt2x00dev->flags);
1877 __set_bit(DRIVER_REQUIRE_SCHEDULED, &rt2x00dev->flags);
1878 if (!modparam_nohwcrypt) {
1879 __set_bit(CONFIG_SUPPORT_HW_CRYPTO, &rt2x00dev->flags);
1880 __set_bit(DRIVER_REQUIRE_COPY_IV, &rt2x00dev->flags);
1882 __set_bit(CONFIG_DISABLE_LINK_TUNING, &rt2x00dev->flags);
1885 * Set the rssi offset.
1887 rt2x00dev->rssi_offset = DEFAULT_RSSI_OFFSET;
1892 static const struct ieee80211_ops rt2500usb_mac80211_ops = {
1894 .start = rt2x00mac_start,
1895 .stop = rt2x00mac_stop,
1896 .add_interface = rt2x00mac_add_interface,
1897 .remove_interface = rt2x00mac_remove_interface,
1898 .config = rt2x00mac_config,
1899 .configure_filter = rt2x00mac_configure_filter,
1900 .set_tim = rt2x00mac_set_tim,
1901 .set_key = rt2x00mac_set_key,
1902 .get_stats = rt2x00mac_get_stats,
1903 .bss_info_changed = rt2x00mac_bss_info_changed,
1904 .conf_tx = rt2x00mac_conf_tx,
1905 .get_tx_stats = rt2x00mac_get_tx_stats,
1906 .rfkill_poll = rt2x00mac_rfkill_poll,
1909 static const struct rt2x00lib_ops rt2500usb_rt2x00_ops = {
1910 .probe_hw = rt2500usb_probe_hw,
1911 .initialize = rt2x00usb_initialize,
1912 .uninitialize = rt2x00usb_uninitialize,
1913 .clear_entry = rt2x00usb_clear_entry,
1914 .set_device_state = rt2500usb_set_device_state,
1915 .rfkill_poll = rt2500usb_rfkill_poll,
1916 .link_stats = rt2500usb_link_stats,
1917 .reset_tuner = rt2500usb_reset_tuner,
1918 .link_tuner = rt2500usb_link_tuner,
1919 .write_tx_desc = rt2500usb_write_tx_desc,
1920 .write_tx_data = rt2x00usb_write_tx_data,
1921 .write_beacon = rt2500usb_write_beacon,
1922 .get_tx_data_len = rt2500usb_get_tx_data_len,
1923 .kick_tx_queue = rt2500usb_kick_tx_queue,
1924 .kill_tx_queue = rt2x00usb_kill_tx_queue,
1925 .fill_rxdone = rt2500usb_fill_rxdone,
1926 .config_shared_key = rt2500usb_config_key,
1927 .config_pairwise_key = rt2500usb_config_key,
1928 .config_filter = rt2500usb_config_filter,
1929 .config_intf = rt2500usb_config_intf,
1930 .config_erp = rt2500usb_config_erp,
1931 .config_ant = rt2500usb_config_ant,
1932 .config = rt2500usb_config,
1935 static const struct data_queue_desc rt2500usb_queue_rx = {
1936 .entry_num = RX_ENTRIES,
1937 .data_size = DATA_FRAME_SIZE,
1938 .desc_size = RXD_DESC_SIZE,
1939 .priv_size = sizeof(struct queue_entry_priv_usb),
1942 static const struct data_queue_desc rt2500usb_queue_tx = {
1943 .entry_num = TX_ENTRIES,
1944 .data_size = DATA_FRAME_SIZE,
1945 .desc_size = TXD_DESC_SIZE,
1946 .priv_size = sizeof(struct queue_entry_priv_usb),
1949 static const struct data_queue_desc rt2500usb_queue_bcn = {
1950 .entry_num = BEACON_ENTRIES,
1951 .data_size = MGMT_FRAME_SIZE,
1952 .desc_size = TXD_DESC_SIZE,
1953 .priv_size = sizeof(struct queue_entry_priv_usb_bcn),
1956 static const struct data_queue_desc rt2500usb_queue_atim = {
1957 .entry_num = ATIM_ENTRIES,
1958 .data_size = DATA_FRAME_SIZE,
1959 .desc_size = TXD_DESC_SIZE,
1960 .priv_size = sizeof(struct queue_entry_priv_usb),
1963 static const struct rt2x00_ops rt2500usb_ops = {
1964 .name = KBUILD_MODNAME,
1967 .eeprom_size = EEPROM_SIZE,
1969 .tx_queues = NUM_TX_QUEUES,
1970 .rx = &rt2500usb_queue_rx,
1971 .tx = &rt2500usb_queue_tx,
1972 .bcn = &rt2500usb_queue_bcn,
1973 .atim = &rt2500usb_queue_atim,
1974 .lib = &rt2500usb_rt2x00_ops,
1975 .hw = &rt2500usb_mac80211_ops,
1976 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
1977 .debugfs = &rt2500usb_rt2x00debug,
1978 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
1982 * rt2500usb module information.
1984 static struct usb_device_id rt2500usb_device_table[] = {
1986 { USB_DEVICE(0x0b05, 0x1706), USB_DEVICE_DATA(&rt2500usb_ops) },
1987 { USB_DEVICE(0x0b05, 0x1707), USB_DEVICE_DATA(&rt2500usb_ops) },
1989 { USB_DEVICE(0x050d, 0x7050), USB_DEVICE_DATA(&rt2500usb_ops) },
1990 { USB_DEVICE(0x050d, 0x7051), USB_DEVICE_DATA(&rt2500usb_ops) },
1991 { USB_DEVICE(0x050d, 0x705a), USB_DEVICE_DATA(&rt2500usb_ops) },
1993 { USB_DEVICE(0x13b1, 0x000d), USB_DEVICE_DATA(&rt2500usb_ops) },
1994 { USB_DEVICE(0x13b1, 0x0011), USB_DEVICE_DATA(&rt2500usb_ops) },
1995 { USB_DEVICE(0x13b1, 0x001a), USB_DEVICE_DATA(&rt2500usb_ops) },
1997 { USB_DEVICE(0x1371, 0x9022), USB_DEVICE_DATA(&rt2500usb_ops) },
1999 { USB_DEVICE(0x14b2, 0x3c02), USB_DEVICE_DATA(&rt2500usb_ops) },
2001 { USB_DEVICE(0x2001, 0x3c00), USB_DEVICE_DATA(&rt2500usb_ops) },
2003 { USB_DEVICE(0x1044, 0x8001), USB_DEVICE_DATA(&rt2500usb_ops) },
2004 { USB_DEVICE(0x1044, 0x8007), USB_DEVICE_DATA(&rt2500usb_ops) },
2006 { USB_DEVICE(0x06f8, 0xe000), USB_DEVICE_DATA(&rt2500usb_ops) },
2008 { USB_DEVICE(0x0411, 0x005e), USB_DEVICE_DATA(&rt2500usb_ops) },
2009 { USB_DEVICE(0x0411, 0x0066), USB_DEVICE_DATA(&rt2500usb_ops) },
2010 { USB_DEVICE(0x0411, 0x0067), USB_DEVICE_DATA(&rt2500usb_ops) },
2011 { USB_DEVICE(0x0411, 0x008b), USB_DEVICE_DATA(&rt2500usb_ops) },
2012 { USB_DEVICE(0x0411, 0x0097), USB_DEVICE_DATA(&rt2500usb_ops) },
2014 { USB_DEVICE(0x0db0, 0x6861), USB_DEVICE_DATA(&rt2500usb_ops) },
2015 { USB_DEVICE(0x0db0, 0x6865), USB_DEVICE_DATA(&rt2500usb_ops) },
2016 { USB_DEVICE(0x0db0, 0x6869), USB_DEVICE_DATA(&rt2500usb_ops) },
2018 { USB_DEVICE(0x148f, 0x1706), USB_DEVICE_DATA(&rt2500usb_ops) },
2019 { USB_DEVICE(0x148f, 0x2570), USB_DEVICE_DATA(&rt2500usb_ops) },
2020 { USB_DEVICE(0x148f, 0x2573), USB_DEVICE_DATA(&rt2500usb_ops) },
2021 { USB_DEVICE(0x148f, 0x9020), USB_DEVICE_DATA(&rt2500usb_ops) },
2023 { USB_DEVICE(0x079b, 0x004b), USB_DEVICE_DATA(&rt2500usb_ops) },
2025 { USB_DEVICE(0x0681, 0x3c06), USB_DEVICE_DATA(&rt2500usb_ops) },
2027 { USB_DEVICE(0x0707, 0xee13), USB_DEVICE_DATA(&rt2500usb_ops) },
2029 { USB_DEVICE(0x114b, 0x0110), USB_DEVICE_DATA(&rt2500usb_ops) },
2031 { USB_DEVICE(0x0769, 0x11f3), USB_DEVICE_DATA(&rt2500usb_ops) },
2033 { USB_DEVICE(0x0eb0, 0x9020), USB_DEVICE_DATA(&rt2500usb_ops) },
2035 { USB_DEVICE(0x0f88, 0x3012), USB_DEVICE_DATA(&rt2500usb_ops) },
2037 { USB_DEVICE(0x5a57, 0x0260), USB_DEVICE_DATA(&rt2500usb_ops) },
2041 MODULE_AUTHOR(DRV_PROJECT);
2042 MODULE_VERSION(DRV_VERSION);
2043 MODULE_DESCRIPTION("Ralink RT2500 USB Wireless LAN driver.");
2044 MODULE_SUPPORTED_DEVICE("Ralink RT2570 USB chipset based cards");
2045 MODULE_DEVICE_TABLE(usb, rt2500usb_device_table);
2046 MODULE_LICENSE("GPL");
2048 static struct usb_driver rt2500usb_driver = {
2049 .name = KBUILD_MODNAME,
2050 .id_table = rt2500usb_device_table,
2051 .probe = rt2x00usb_probe,
2052 .disconnect = rt2x00usb_disconnect,
2053 .suspend = rt2x00usb_suspend,
2054 .resume = rt2x00usb_resume,
2057 static int __init rt2500usb_init(void)
2059 return usb_register(&rt2500usb_driver);
2062 static void __exit rt2500usb_exit(void)
2064 usb_deregister(&rt2500usb_driver);
2067 module_init(rt2500usb_init);
2068 module_exit(rt2500usb_exit);