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: rt2500usb device specific routines.
24 Supported chipsets: RT2570.
28 * Set enviroment defines for rt2x00.h
30 #define DRV_NAME "rt2500usb"
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"
41 #include "rt2500usb.h"
45 * All access to the CSR registers will go through the methods
46 * rt2500usb_register_read and rt2500usb_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 rt2500usb_register_read(const struct rt2x00_dev *rt2x00dev,
57 const unsigned int offset,
61 rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_READ,
62 USB_VENDOR_REQUEST_IN, offset,
63 ®, sizeof(u16), REGISTER_TIMEOUT);
64 *value = le16_to_cpu(reg);
67 static inline void rt2500usb_register_multiread(const struct rt2x00_dev
69 const unsigned int offset,
70 void *value, const u16 length)
72 int timeout = REGISTER_TIMEOUT * (length / sizeof(u16));
73 rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_READ,
74 USB_VENDOR_REQUEST_IN, offset,
75 value, length, timeout);
78 static inline void rt2500usb_register_write(const struct rt2x00_dev *rt2x00dev,
79 const unsigned int offset,
82 __le16 reg = cpu_to_le16(value);
83 rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_WRITE,
84 USB_VENDOR_REQUEST_OUT, offset,
85 ®, sizeof(u16), REGISTER_TIMEOUT);
88 static inline void rt2500usb_register_multiwrite(const struct rt2x00_dev
90 const unsigned int offset,
91 void *value, const u16 length)
93 int timeout = REGISTER_TIMEOUT * (length / sizeof(u16));
94 rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_WRITE,
95 USB_VENDOR_REQUEST_OUT, offset,
96 value, length, timeout);
99 static u16 rt2500usb_bbp_check(const struct rt2x00_dev *rt2x00dev)
104 for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
105 rt2500usb_register_read(rt2x00dev, PHY_CSR8, ®);
106 if (!rt2x00_get_field16(reg, PHY_CSR8_BUSY))
108 udelay(REGISTER_BUSY_DELAY);
114 static void rt2500usb_bbp_write(const struct rt2x00_dev *rt2x00dev,
115 const unsigned int word, const u8 value)
120 * Wait until the BBP becomes ready.
122 reg = rt2500usb_bbp_check(rt2x00dev);
123 if (rt2x00_get_field16(reg, PHY_CSR8_BUSY)) {
124 ERROR(rt2x00dev, "PHY_CSR8 register busy. Write failed.\n");
129 * Write the data into the BBP.
132 rt2x00_set_field16(®, PHY_CSR7_DATA, value);
133 rt2x00_set_field16(®, PHY_CSR7_REG_ID, word);
134 rt2x00_set_field16(®, PHY_CSR7_READ_CONTROL, 0);
136 rt2500usb_register_write(rt2x00dev, PHY_CSR7, reg);
139 static void rt2500usb_bbp_read(const struct rt2x00_dev *rt2x00dev,
140 const unsigned int word, u8 *value)
145 * Wait until the BBP becomes ready.
147 reg = rt2500usb_bbp_check(rt2x00dev);
148 if (rt2x00_get_field16(reg, PHY_CSR8_BUSY)) {
149 ERROR(rt2x00dev, "PHY_CSR8 register busy. Read failed.\n");
154 * Write the request into the BBP.
157 rt2x00_set_field16(®, PHY_CSR7_REG_ID, word);
158 rt2x00_set_field16(®, PHY_CSR7_READ_CONTROL, 1);
160 rt2500usb_register_write(rt2x00dev, PHY_CSR7, reg);
163 * Wait until the BBP becomes ready.
165 reg = rt2500usb_bbp_check(rt2x00dev);
166 if (rt2x00_get_field16(reg, PHY_CSR8_BUSY)) {
167 ERROR(rt2x00dev, "PHY_CSR8 register busy. Read failed.\n");
172 rt2500usb_register_read(rt2x00dev, PHY_CSR7, ®);
173 *value = rt2x00_get_field16(reg, PHY_CSR7_DATA);
176 static void rt2500usb_rf_write(const struct rt2x00_dev *rt2x00dev,
177 const unsigned int word, const u32 value)
185 for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
186 rt2500usb_register_read(rt2x00dev, PHY_CSR10, ®);
187 if (!rt2x00_get_field16(reg, PHY_CSR10_RF_BUSY))
189 udelay(REGISTER_BUSY_DELAY);
192 ERROR(rt2x00dev, "PHY_CSR10 register busy. Write failed.\n");
197 rt2x00_set_field16(®, PHY_CSR9_RF_VALUE, value);
198 rt2500usb_register_write(rt2x00dev, PHY_CSR9, reg);
201 rt2x00_set_field16(®, PHY_CSR10_RF_VALUE, value >> 16);
202 rt2x00_set_field16(®, PHY_CSR10_RF_NUMBER_OF_BITS, 20);
203 rt2x00_set_field16(®, PHY_CSR10_RF_IF_SELECT, 0);
204 rt2x00_set_field16(®, PHY_CSR10_RF_BUSY, 1);
206 rt2500usb_register_write(rt2x00dev, PHY_CSR10, reg);
207 rt2x00_rf_write(rt2x00dev, word, value);
210 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
211 #define CSR_OFFSET(__word) ( CSR_REG_BASE + ((__word) * sizeof(u16)) )
213 static void rt2500usb_read_csr(const struct rt2x00_dev *rt2x00dev,
214 const unsigned int word, u32 *data)
216 rt2500usb_register_read(rt2x00dev, CSR_OFFSET(word), (u16 *) data);
219 static void rt2500usb_write_csr(const struct rt2x00_dev *rt2x00dev,
220 const unsigned int word, u32 data)
222 rt2500usb_register_write(rt2x00dev, CSR_OFFSET(word), data);
225 static const struct rt2x00debug rt2500usb_rt2x00debug = {
226 .owner = THIS_MODULE,
228 .read = rt2500usb_read_csr,
229 .write = rt2500usb_write_csr,
230 .word_size = sizeof(u16),
231 .word_count = CSR_REG_SIZE / sizeof(u16),
234 .read = rt2x00_eeprom_read,
235 .write = rt2x00_eeprom_write,
236 .word_size = sizeof(u16),
237 .word_count = EEPROM_SIZE / sizeof(u16),
240 .read = rt2500usb_bbp_read,
241 .write = rt2500usb_bbp_write,
242 .word_size = sizeof(u8),
243 .word_count = BBP_SIZE / sizeof(u8),
246 .read = rt2x00_rf_read,
247 .write = rt2500usb_rf_write,
248 .word_size = sizeof(u32),
249 .word_count = RF_SIZE / sizeof(u32),
252 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
255 * Configuration handlers.
257 static void rt2500usb_config_mac_addr(struct rt2x00_dev *rt2x00dev, u8 *addr)
261 memset(®, 0, sizeof(reg));
262 memcpy(®, addr, ETH_ALEN);
265 * The MAC address is passed to us as an array of bytes,
266 * that array is little endian, so no need for byte ordering.
268 rt2500usb_register_multiwrite(rt2x00dev, MAC_CSR2, ®, sizeof(reg));
271 static void rt2500usb_config_bssid(struct rt2x00_dev *rt2x00dev, u8 *bssid)
275 memset(®, 0, sizeof(reg));
276 memcpy(®, bssid, ETH_ALEN);
279 * The BSSID is passed to us as an array of bytes,
280 * that array is little endian, so no need for byte ordering.
282 rt2500usb_register_multiwrite(rt2x00dev, MAC_CSR5, ®, sizeof(reg));
285 static void rt2500usb_config_packet_filter(struct rt2x00_dev *rt2x00dev,
286 const unsigned int filter)
288 int promisc = !!(filter & IFF_PROMISC);
289 int multicast = !!(filter & IFF_MULTICAST);
290 int broadcast = !!(filter & IFF_BROADCAST);
293 rt2500usb_register_read(rt2x00dev, TXRX_CSR2, ®);
294 rt2x00_set_field16(®, TXRX_CSR2_DROP_NOT_TO_ME, !promisc);
295 rt2x00_set_field16(®, TXRX_CSR2_DROP_MULTICAST, !multicast);
296 rt2x00_set_field16(®, TXRX_CSR2_DROP_BROADCAST, !broadcast);
297 rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
300 static void rt2500usb_config_type(struct rt2x00_dev *rt2x00dev, const int type)
304 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, 0);
307 * Apply hardware packet filter.
309 rt2500usb_register_read(rt2x00dev, TXRX_CSR2, ®);
311 if (!is_monitor_present(&rt2x00dev->interface) &&
312 (type == IEEE80211_IF_TYPE_IBSS || type == IEEE80211_IF_TYPE_STA))
313 rt2x00_set_field16(®, TXRX_CSR2_DROP_TODS, 1);
315 rt2x00_set_field16(®, TXRX_CSR2_DROP_TODS, 0);
318 * If there is a non-monitor interface present
319 * the packet should be strict (even if a monitor interface is present!).
320 * When there is only 1 interface present which is in monitor mode
321 * we should start accepting _all_ frames.
323 if (is_interface_present(&rt2x00dev->interface)) {
324 rt2x00_set_field16(®, TXRX_CSR2_DROP_CRC, 1);
325 rt2x00_set_field16(®, TXRX_CSR2_DROP_PHYSICAL, 1);
326 rt2x00_set_field16(®, TXRX_CSR2_DROP_CONTROL, 1);
327 rt2x00_set_field16(®, TXRX_CSR2_DROP_VERSION_ERROR, 1);
328 } else if (is_monitor_present(&rt2x00dev->interface)) {
329 rt2x00_set_field16(®, TXRX_CSR2_DROP_CRC, 0);
330 rt2x00_set_field16(®, TXRX_CSR2_DROP_PHYSICAL, 0);
331 rt2x00_set_field16(®, TXRX_CSR2_DROP_CONTROL, 0);
332 rt2x00_set_field16(®, TXRX_CSR2_DROP_VERSION_ERROR, 0);
335 rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
338 * Enable beacon config
340 rt2500usb_register_read(rt2x00dev, TXRX_CSR20, ®);
341 rt2x00_set_field16(®, TXRX_CSR20_OFFSET,
342 (PREAMBLE + get_duration(IEEE80211_HEADER, 2)) >> 6);
343 if (type == IEEE80211_IF_TYPE_STA)
344 rt2x00_set_field16(®, TXRX_CSR20_BCN_EXPECT_WINDOW, 0);
346 rt2x00_set_field16(®, TXRX_CSR20_BCN_EXPECT_WINDOW, 2);
347 rt2500usb_register_write(rt2x00dev, TXRX_CSR20, reg);
350 * Enable synchronisation.
352 rt2500usb_register_read(rt2x00dev, TXRX_CSR18, ®);
353 rt2x00_set_field16(®, TXRX_CSR18_OFFSET, 0);
354 rt2500usb_register_write(rt2x00dev, TXRX_CSR18, reg);
356 rt2500usb_register_read(rt2x00dev, TXRX_CSR19, ®);
357 if (is_interface_present(&rt2x00dev->interface)) {
358 rt2x00_set_field16(®, TXRX_CSR19_TSF_COUNT, 1);
359 rt2x00_set_field16(®, TXRX_CSR19_TBCN, 1);
362 rt2x00_set_field16(®, TXRX_CSR19_BEACON_GEN, 0);
363 if (type == IEEE80211_IF_TYPE_IBSS || type == IEEE80211_IF_TYPE_AP)
364 rt2x00_set_field16(®, TXRX_CSR19_TSF_SYNC, 2);
365 else if (type == IEEE80211_IF_TYPE_STA)
366 rt2x00_set_field16(®, TXRX_CSR19_TSF_SYNC, 1);
367 else if (is_monitor_present(&rt2x00dev->interface) &&
368 !is_interface_present(&rt2x00dev->interface))
369 rt2x00_set_field16(®, TXRX_CSR19_TSF_SYNC, 0);
371 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
374 static void rt2500usb_config_rate(struct rt2x00_dev *rt2x00dev, const int rate)
376 struct ieee80211_conf *conf = &rt2x00dev->hw->conf;
381 if (DEVICE_GET_RATE_FIELD(rate, PREAMBLE))
382 preamble = SHORT_PREAMBLE;
386 reg = DEVICE_GET_RATE_FIELD(rate, RATEMASK) & DEV_BASIC_RATEMASK;
388 rt2500usb_register_write(rt2x00dev, TXRX_CSR11, reg);
390 rt2500usb_register_read(rt2x00dev, TXRX_CSR1, ®);
391 value = ((conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME) ?
393 PLCP + preamble + get_duration(ACK_SIZE, 10);
394 rt2x00_set_field16(®, TXRX_CSR1_ACK_TIMEOUT, value);
395 rt2500usb_register_write(rt2x00dev, TXRX_CSR1, reg);
397 rt2500usb_register_read(rt2x00dev, TXRX_CSR10, ®);
398 if (preamble == SHORT_PREAMBLE)
399 rt2x00_set_field16(®, TXRX_CSR10_AUTORESPOND_PREAMBLE, 1);
401 rt2x00_set_field16(®, TXRX_CSR10_AUTORESPOND_PREAMBLE, 0);
402 rt2500usb_register_write(rt2x00dev, TXRX_CSR10, reg);
405 static void rt2500usb_config_phymode(struct rt2x00_dev *rt2x00dev,
408 struct ieee80211_hw_mode *mode;
409 struct ieee80211_rate *rate;
411 if (phymode == MODE_IEEE80211A)
412 rt2x00dev->curr_hwmode = HWMODE_A;
413 else if (phymode == MODE_IEEE80211B)
414 rt2x00dev->curr_hwmode = HWMODE_B;
416 rt2x00dev->curr_hwmode = HWMODE_G;
418 mode = &rt2x00dev->hwmodes[rt2x00dev->curr_hwmode];
419 rate = &mode->rates[mode->num_rates - 1];
421 rt2500usb_config_rate(rt2x00dev, rate->val2);
423 if (phymode == MODE_IEEE80211B) {
424 rt2500usb_register_write(rt2x00dev, MAC_CSR11, 0x000b);
425 rt2500usb_register_write(rt2x00dev, MAC_CSR12, 0x0040);
427 rt2500usb_register_write(rt2x00dev, MAC_CSR11, 0x0005);
428 rt2500usb_register_write(rt2x00dev, MAC_CSR12, 0x016c);
432 static void rt2500usb_config_channel(struct rt2x00_dev *rt2x00dev,
433 const int index, const int channel,
436 struct rf_channel reg;
439 * Fill rf_reg structure.
441 memcpy(®, &rt2x00dev->spec.channels[index], sizeof(reg));
446 rt2x00_set_field32(®.rf3, RF3_TXPOWER, TXPOWER_TO_DEV(txpower));
449 * For RT2525E we should first set the channel to half band higher.
451 if (rt2x00_rf(&rt2x00dev->chip, RF2525E)) {
452 static const u32 vals[] = {
453 0x000008aa, 0x000008ae, 0x000008ae, 0x000008b2,
454 0x000008b2, 0x000008b6, 0x000008b6, 0x000008ba,
455 0x000008ba, 0x000008be, 0x000008b7, 0x00000902,
456 0x00000902, 0x00000906
459 rt2500usb_rf_write(rt2x00dev, 2, vals[channel - 1]);
461 rt2500usb_rf_write(rt2x00dev, 4, reg.rf4);
464 rt2500usb_rf_write(rt2x00dev, 1, reg.rf1);
465 rt2500usb_rf_write(rt2x00dev, 2, reg.rf2);
466 rt2500usb_rf_write(rt2x00dev, 3, reg.rf3);
468 rt2500usb_rf_write(rt2x00dev, 4, reg.rf4);
471 static void rt2500usb_config_txpower(struct rt2x00_dev *rt2x00dev,
476 rt2x00_rf_read(rt2x00dev, 3, &rf3);
477 rt2x00_set_field32(&rf3, RF3_TXPOWER, TXPOWER_TO_DEV(txpower));
478 rt2500usb_rf_write(rt2x00dev, 3, rf3);
481 static void rt2500usb_config_antenna(struct rt2x00_dev *rt2x00dev,
482 const int antenna_tx, const int antenna_rx)
489 rt2500usb_bbp_read(rt2x00dev, 2, &r2);
490 rt2500usb_bbp_read(rt2x00dev, 14, &r14);
491 rt2500usb_register_read(rt2x00dev, PHY_CSR5, &csr5);
492 rt2500usb_register_read(rt2x00dev, PHY_CSR6, &csr6);
495 * Configure the TX antenna.
497 switch (antenna_tx) {
498 case ANTENNA_SW_DIVERSITY:
499 case ANTENNA_HW_DIVERSITY:
500 rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 1);
501 rt2x00_set_field16(&csr5, PHY_CSR5_CCK, 1);
502 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM, 1);
505 rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 0);
506 rt2x00_set_field16(&csr5, PHY_CSR5_CCK, 0);
507 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM, 0);
510 rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 2);
511 rt2x00_set_field16(&csr5, PHY_CSR5_CCK, 2);
512 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM, 2);
517 * Configure the RX antenna.
519 switch (antenna_rx) {
520 case ANTENNA_SW_DIVERSITY:
521 case ANTENNA_HW_DIVERSITY:
522 rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 1);
525 rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 0);
528 rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 2);
533 * RT2525E and RT5222 need to flip TX I/Q
535 if (rt2x00_rf(&rt2x00dev->chip, RF2525E) ||
536 rt2x00_rf(&rt2x00dev->chip, RF5222)) {
537 rt2x00_set_field8(&r2, BBP_R2_TX_IQ_FLIP, 1);
538 rt2x00_set_field16(&csr5, PHY_CSR5_CCK_FLIP, 1);
539 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM_FLIP, 1);
542 * RT2525E does not need RX I/Q Flip.
544 if (rt2x00_rf(&rt2x00dev->chip, RF2525E))
545 rt2x00_set_field8(&r14, BBP_R14_RX_IQ_FLIP, 0);
547 rt2x00_set_field16(&csr5, PHY_CSR5_CCK_FLIP, 0);
548 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM_FLIP, 0);
551 rt2500usb_bbp_write(rt2x00dev, 2, r2);
552 rt2500usb_bbp_write(rt2x00dev, 14, r14);
553 rt2500usb_register_write(rt2x00dev, PHY_CSR5, csr5);
554 rt2500usb_register_write(rt2x00dev, PHY_CSR6, csr6);
557 static void rt2500usb_config_duration(struct rt2x00_dev *rt2x00dev,
558 const int short_slot_time,
559 const int beacon_int)
563 rt2500usb_register_write(rt2x00dev, MAC_CSR10,
564 short_slot_time ? SHORT_SLOT_TIME : SLOT_TIME);
566 rt2500usb_register_read(rt2x00dev, TXRX_CSR18, ®);
567 rt2x00_set_field16(®, TXRX_CSR18_INTERVAL, beacon_int * 4);
568 rt2500usb_register_write(rt2x00dev, TXRX_CSR18, reg);
571 static void rt2500usb_config(struct rt2x00_dev *rt2x00dev,
572 const unsigned int flags,
573 struct ieee80211_conf *conf)
575 int short_slot_time = conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME;
577 if (flags & CONFIG_UPDATE_PHYMODE)
578 rt2500usb_config_phymode(rt2x00dev, conf->phymode);
579 if (flags & CONFIG_UPDATE_CHANNEL)
580 rt2500usb_config_channel(rt2x00dev, conf->channel_val,
581 conf->channel, conf->power_level);
582 if ((flags & CONFIG_UPDATE_TXPOWER) && !(flags & CONFIG_UPDATE_CHANNEL))
583 rt2500usb_config_txpower(rt2x00dev, conf->power_level);
584 if (flags & CONFIG_UPDATE_ANTENNA)
585 rt2500usb_config_antenna(rt2x00dev, conf->antenna_sel_tx,
586 conf->antenna_sel_rx);
587 if (flags & (CONFIG_UPDATE_SLOT_TIME | CONFIG_UPDATE_BEACON_INT))
588 rt2500usb_config_duration(rt2x00dev, short_slot_time,
595 static void rt2500usb_enable_led(struct rt2x00_dev *rt2x00dev)
599 rt2500usb_register_read(rt2x00dev, MAC_CSR21, ®);
600 rt2x00_set_field16(®, MAC_CSR21_ON_PERIOD, 70);
601 rt2x00_set_field16(®, MAC_CSR21_OFF_PERIOD, 30);
602 rt2500usb_register_write(rt2x00dev, MAC_CSR21, reg);
604 rt2500usb_register_read(rt2x00dev, MAC_CSR20, ®);
606 if (rt2x00dev->led_mode == LED_MODE_TXRX_ACTIVITY) {
607 rt2x00_set_field16(®, MAC_CSR20_LINK, 1);
608 rt2x00_set_field16(®, MAC_CSR20_ACTIVITY, 0);
609 } else if (rt2x00dev->led_mode == LED_MODE_ASUS) {
610 rt2x00_set_field16(®, MAC_CSR20_LINK, 0);
611 rt2x00_set_field16(®, MAC_CSR20_ACTIVITY, 1);
613 rt2x00_set_field16(®, MAC_CSR20_LINK, 1);
614 rt2x00_set_field16(®, MAC_CSR20_ACTIVITY, 1);
617 rt2500usb_register_write(rt2x00dev, MAC_CSR20, reg);
620 static void rt2500usb_disable_led(struct rt2x00_dev *rt2x00dev)
624 rt2500usb_register_read(rt2x00dev, MAC_CSR20, ®);
625 rt2x00_set_field16(®, MAC_CSR20_LINK, 0);
626 rt2x00_set_field16(®, MAC_CSR20_ACTIVITY, 0);
627 rt2500usb_register_write(rt2x00dev, MAC_CSR20, reg);
633 static void rt2500usb_link_stats(struct rt2x00_dev *rt2x00dev)
638 * Update FCS error count from register.
640 rt2500usb_register_read(rt2x00dev, STA_CSR0, ®);
641 rt2x00dev->link.rx_failed = rt2x00_get_field16(reg, STA_CSR0_FCS_ERROR);
644 * Update False CCA count from register.
646 rt2500usb_register_read(rt2x00dev, STA_CSR3, ®);
647 rt2x00dev->link.false_cca =
648 rt2x00_get_field16(reg, STA_CSR3_FALSE_CCA_ERROR);
651 static void rt2500usb_reset_tuner(struct rt2x00_dev *rt2x00dev)
656 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R24, &eeprom);
657 value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_R24_LOW);
658 rt2500usb_bbp_write(rt2x00dev, 24, value);
660 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R25, &eeprom);
661 value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_R25_LOW);
662 rt2500usb_bbp_write(rt2x00dev, 25, value);
664 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R61, &eeprom);
665 value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_R61_LOW);
666 rt2500usb_bbp_write(rt2x00dev, 61, value);
668 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_VGC, &eeprom);
669 value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_VGCUPPER);
670 rt2500usb_bbp_write(rt2x00dev, 17, value);
672 rt2x00dev->link.vgc_level = value;
675 static void rt2500usb_link_tuner(struct rt2x00_dev *rt2x00dev)
677 int rssi = rt2x00_get_link_rssi(&rt2x00dev->link);
690 * Determine the BBP tuning threshold and correctly
691 * set BBP 24, 25 and 61.
693 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE, &bbp_thresh);
694 bbp_thresh = rt2x00_get_field16(bbp_thresh, EEPROM_BBPTUNE_THRESHOLD);
696 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R24, &r24);
697 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R25, &r25);
698 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R61, &r61);
700 if ((rssi + bbp_thresh) > 0) {
701 r24 = rt2x00_get_field16(r24, EEPROM_BBPTUNE_R24_HIGH);
702 r25 = rt2x00_get_field16(r25, EEPROM_BBPTUNE_R25_HIGH);
703 r61 = rt2x00_get_field16(r61, EEPROM_BBPTUNE_R61_HIGH);
705 r24 = rt2x00_get_field16(r24, EEPROM_BBPTUNE_R24_LOW);
706 r25 = rt2x00_get_field16(r25, EEPROM_BBPTUNE_R25_LOW);
707 r61 = rt2x00_get_field16(r61, EEPROM_BBPTUNE_R61_LOW);
710 rt2500usb_bbp_write(rt2x00dev, 24, r24);
711 rt2500usb_bbp_write(rt2x00dev, 25, r25);
712 rt2500usb_bbp_write(rt2x00dev, 61, r61);
715 * Read current r17 value, as well as the sensitivity values
716 * for the r17 register.
718 rt2500usb_bbp_read(rt2x00dev, 17, &r17);
719 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R17, &r17_sens);
722 * A too low RSSI will cause too much false CCA which will
723 * then corrupt the R17 tuning. To remidy this the tuning should
724 * be stopped (While making sure the R17 value will not exceed limits)
728 rt2500usb_bbp_write(rt2x00dev, 17, 0x60);
733 * Special big-R17 for short distance
736 sens = rt2x00_get_field16(r17_sens, EEPROM_BBPTUNE_R17_LOW);
738 rt2500usb_bbp_write(rt2x00dev, 17, sens);
743 * Special mid-R17 for middle distance
746 sens = rt2x00_get_field16(r17_sens, EEPROM_BBPTUNE_R17_HIGH);
748 rt2500usb_bbp_write(rt2x00dev, 17, sens);
753 * Leave short or middle distance condition, restore r17
754 * to the dynamic tuning range.
756 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_VGC, &vgc_bound);
757 vgc_bound = rt2x00_get_field16(vgc_bound, EEPROM_BBPTUNE_VGCUPPER);
761 up_bound = vgc_bound;
763 up_bound = vgc_bound - (-77 - rssi);
765 if (up_bound < low_bound)
766 up_bound = low_bound;
768 if (r17 > up_bound) {
769 rt2500usb_bbp_write(rt2x00dev, 17, up_bound);
770 rt2x00dev->link.vgc_level = up_bound;
771 } else if (rt2x00dev->link.false_cca > 512 && r17 < up_bound) {
772 rt2500usb_bbp_write(rt2x00dev, 17, ++r17);
773 rt2x00dev->link.vgc_level = r17;
774 } else if (rt2x00dev->link.false_cca < 100 && r17 > low_bound) {
775 rt2500usb_bbp_write(rt2x00dev, 17, --r17);
776 rt2x00dev->link.vgc_level = r17;
781 * Initialization functions.
783 static int rt2500usb_init_registers(struct rt2x00_dev *rt2x00dev)
787 rt2x00usb_vendor_request_sw(rt2x00dev, USB_DEVICE_MODE, 0x0001,
788 USB_MODE_TEST, REGISTER_TIMEOUT);
789 rt2x00usb_vendor_request_sw(rt2x00dev, USB_SINGLE_WRITE, 0x0308,
790 0x00f0, REGISTER_TIMEOUT);
792 rt2500usb_register_read(rt2x00dev, TXRX_CSR2, ®);
793 rt2x00_set_field16(®, TXRX_CSR2_DISABLE_RX, 1);
794 rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
796 rt2500usb_register_write(rt2x00dev, MAC_CSR13, 0x1111);
797 rt2500usb_register_write(rt2x00dev, MAC_CSR14, 0x1e11);
799 rt2500usb_register_read(rt2x00dev, MAC_CSR1, ®);
800 rt2x00_set_field16(®, MAC_CSR1_SOFT_RESET, 1);
801 rt2x00_set_field16(®, MAC_CSR1_BBP_RESET, 1);
802 rt2x00_set_field16(®, MAC_CSR1_HOST_READY, 0);
803 rt2500usb_register_write(rt2x00dev, MAC_CSR1, reg);
805 rt2500usb_register_read(rt2x00dev, MAC_CSR1, ®);
806 rt2x00_set_field16(®, MAC_CSR1_SOFT_RESET, 0);
807 rt2x00_set_field16(®, MAC_CSR1_BBP_RESET, 0);
808 rt2x00_set_field16(®, MAC_CSR1_HOST_READY, 0);
809 rt2500usb_register_write(rt2x00dev, MAC_CSR1, reg);
811 rt2500usb_register_read(rt2x00dev, TXRX_CSR5, ®);
812 rt2x00_set_field16(®, TXRX_CSR5_BBP_ID0, 13);
813 rt2x00_set_field16(®, TXRX_CSR5_BBP_ID0_VALID, 1);
814 rt2x00_set_field16(®, TXRX_CSR5_BBP_ID1, 12);
815 rt2x00_set_field16(®, TXRX_CSR5_BBP_ID1_VALID, 1);
816 rt2500usb_register_write(rt2x00dev, TXRX_CSR5, reg);
818 rt2500usb_register_read(rt2x00dev, TXRX_CSR6, ®);
819 rt2x00_set_field16(®, TXRX_CSR6_BBP_ID0, 10);
820 rt2x00_set_field16(®, TXRX_CSR6_BBP_ID0_VALID, 1);
821 rt2x00_set_field16(®, TXRX_CSR6_BBP_ID1, 11);
822 rt2x00_set_field16(®, TXRX_CSR6_BBP_ID1_VALID, 1);
823 rt2500usb_register_write(rt2x00dev, TXRX_CSR6, reg);
825 rt2500usb_register_read(rt2x00dev, TXRX_CSR7, ®);
826 rt2x00_set_field16(®, TXRX_CSR7_BBP_ID0, 7);
827 rt2x00_set_field16(®, TXRX_CSR7_BBP_ID0_VALID, 1);
828 rt2x00_set_field16(®, TXRX_CSR7_BBP_ID1, 6);
829 rt2x00_set_field16(®, TXRX_CSR7_BBP_ID1_VALID, 1);
830 rt2500usb_register_write(rt2x00dev, TXRX_CSR7, reg);
832 rt2500usb_register_read(rt2x00dev, TXRX_CSR8, ®);
833 rt2x00_set_field16(®, TXRX_CSR8_BBP_ID0, 5);
834 rt2x00_set_field16(®, TXRX_CSR8_BBP_ID0_VALID, 1);
835 rt2x00_set_field16(®, TXRX_CSR8_BBP_ID1, 0);
836 rt2x00_set_field16(®, TXRX_CSR8_BBP_ID1_VALID, 0);
837 rt2500usb_register_write(rt2x00dev, TXRX_CSR8, reg);
839 rt2500usb_register_write(rt2x00dev, TXRX_CSR21, 0xe78f);
840 rt2500usb_register_write(rt2x00dev, MAC_CSR9, 0xff1d);
842 if (rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_AWAKE))
845 rt2500usb_register_read(rt2x00dev, MAC_CSR1, ®);
846 rt2x00_set_field16(®, MAC_CSR1_SOFT_RESET, 0);
847 rt2x00_set_field16(®, MAC_CSR1_BBP_RESET, 0);
848 rt2x00_set_field16(®, MAC_CSR1_HOST_READY, 1);
849 rt2500usb_register_write(rt2x00dev, MAC_CSR1, reg);
851 if (rt2x00_get_rev(&rt2x00dev->chip) >= RT2570_VERSION_C) {
852 rt2500usb_register_read(rt2x00dev, PHY_CSR2, ®);
857 rt2500usb_register_write(rt2x00dev, PHY_CSR2, reg);
859 rt2500usb_register_write(rt2x00dev, MAC_CSR11, 0x0002);
860 rt2500usb_register_write(rt2x00dev, MAC_CSR22, 0x0053);
861 rt2500usb_register_write(rt2x00dev, MAC_CSR15, 0x01ee);
862 rt2500usb_register_write(rt2x00dev, MAC_CSR16, 0x0000);
864 rt2500usb_register_read(rt2x00dev, MAC_CSR8, ®);
865 rt2x00_set_field16(®, MAC_CSR8_MAX_FRAME_UNIT,
866 rt2x00dev->rx->data_size);
867 rt2500usb_register_write(rt2x00dev, MAC_CSR8, reg);
869 rt2500usb_register_read(rt2x00dev, TXRX_CSR0, ®);
870 rt2x00_set_field16(®, TXRX_CSR0_IV_OFFSET, IEEE80211_HEADER);
871 rt2x00_set_field16(®, TXRX_CSR0_KEY_ID, 0xff);
872 rt2500usb_register_write(rt2x00dev, TXRX_CSR0, reg);
874 rt2500usb_register_read(rt2x00dev, MAC_CSR18, ®);
875 rt2x00_set_field16(®, MAC_CSR18_DELAY_AFTER_BEACON, 90);
876 rt2500usb_register_write(rt2x00dev, MAC_CSR18, reg);
878 rt2500usb_register_read(rt2x00dev, PHY_CSR4, ®);
879 rt2x00_set_field16(®, PHY_CSR4_LOW_RF_LE, 1);
880 rt2500usb_register_write(rt2x00dev, PHY_CSR4, reg);
882 rt2500usb_register_read(rt2x00dev, TXRX_CSR1, ®);
883 rt2x00_set_field16(®, TXRX_CSR1_AUTO_SEQUENCE, 1);
884 rt2500usb_register_write(rt2x00dev, TXRX_CSR1, reg);
889 static int rt2500usb_init_bbp(struct rt2x00_dev *rt2x00dev)
896 for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
897 rt2500usb_bbp_read(rt2x00dev, 0, &value);
898 if ((value != 0xff) && (value != 0x00))
899 goto continue_csr_init;
900 NOTICE(rt2x00dev, "Waiting for BBP register.\n");
901 udelay(REGISTER_BUSY_DELAY);
904 ERROR(rt2x00dev, "BBP register access failed, aborting.\n");
908 rt2500usb_bbp_write(rt2x00dev, 3, 0x02);
909 rt2500usb_bbp_write(rt2x00dev, 4, 0x19);
910 rt2500usb_bbp_write(rt2x00dev, 14, 0x1c);
911 rt2500usb_bbp_write(rt2x00dev, 15, 0x30);
912 rt2500usb_bbp_write(rt2x00dev, 16, 0xac);
913 rt2500usb_bbp_write(rt2x00dev, 18, 0x18);
914 rt2500usb_bbp_write(rt2x00dev, 19, 0xff);
915 rt2500usb_bbp_write(rt2x00dev, 20, 0x1e);
916 rt2500usb_bbp_write(rt2x00dev, 21, 0x08);
917 rt2500usb_bbp_write(rt2x00dev, 22, 0x08);
918 rt2500usb_bbp_write(rt2x00dev, 23, 0x08);
919 rt2500usb_bbp_write(rt2x00dev, 24, 0x80);
920 rt2500usb_bbp_write(rt2x00dev, 25, 0x50);
921 rt2500usb_bbp_write(rt2x00dev, 26, 0x08);
922 rt2500usb_bbp_write(rt2x00dev, 27, 0x23);
923 rt2500usb_bbp_write(rt2x00dev, 30, 0x10);
924 rt2500usb_bbp_write(rt2x00dev, 31, 0x2b);
925 rt2500usb_bbp_write(rt2x00dev, 32, 0xb9);
926 rt2500usb_bbp_write(rt2x00dev, 34, 0x12);
927 rt2500usb_bbp_write(rt2x00dev, 35, 0x50);
928 rt2500usb_bbp_write(rt2x00dev, 39, 0xc4);
929 rt2500usb_bbp_write(rt2x00dev, 40, 0x02);
930 rt2500usb_bbp_write(rt2x00dev, 41, 0x60);
931 rt2500usb_bbp_write(rt2x00dev, 53, 0x10);
932 rt2500usb_bbp_write(rt2x00dev, 54, 0x18);
933 rt2500usb_bbp_write(rt2x00dev, 56, 0x08);
934 rt2500usb_bbp_write(rt2x00dev, 57, 0x10);
935 rt2500usb_bbp_write(rt2x00dev, 58, 0x08);
936 rt2500usb_bbp_write(rt2x00dev, 61, 0x60);
937 rt2500usb_bbp_write(rt2x00dev, 62, 0x10);
938 rt2500usb_bbp_write(rt2x00dev, 75, 0xff);
940 DEBUG(rt2x00dev, "Start initialization from EEPROM...\n");
941 for (i = 0; i < EEPROM_BBP_SIZE; i++) {
942 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBP_START + i, &eeprom);
944 if (eeprom != 0xffff && eeprom != 0x0000) {
945 reg_id = rt2x00_get_field16(eeprom, EEPROM_BBP_REG_ID);
946 value = rt2x00_get_field16(eeprom, EEPROM_BBP_VALUE);
947 DEBUG(rt2x00dev, "BBP: 0x%02x, value: 0x%02x.\n",
949 rt2500usb_bbp_write(rt2x00dev, reg_id, value);
952 DEBUG(rt2x00dev, "...End initialization from EEPROM.\n");
958 * Device state switch handlers.
960 static void rt2500usb_toggle_rx(struct rt2x00_dev *rt2x00dev,
961 enum dev_state state)
965 rt2500usb_register_read(rt2x00dev, TXRX_CSR2, ®);
966 rt2x00_set_field16(®, TXRX_CSR2_DISABLE_RX,
967 state == STATE_RADIO_RX_OFF);
968 rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
971 static int rt2500usb_enable_radio(struct rt2x00_dev *rt2x00dev)
974 * Initialize all registers.
976 if (rt2500usb_init_registers(rt2x00dev) ||
977 rt2500usb_init_bbp(rt2x00dev)) {
978 ERROR(rt2x00dev, "Register initialization failed.\n");
982 rt2x00usb_enable_radio(rt2x00dev);
987 rt2500usb_enable_led(rt2x00dev);
992 static void rt2500usb_disable_radio(struct rt2x00_dev *rt2x00dev)
997 rt2500usb_disable_led(rt2x00dev);
999 rt2500usb_register_write(rt2x00dev, MAC_CSR13, 0x2121);
1000 rt2500usb_register_write(rt2x00dev, MAC_CSR14, 0x2121);
1003 * Disable synchronisation.
1005 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, 0);
1007 rt2x00usb_disable_radio(rt2x00dev);
1010 static int rt2500usb_set_state(struct rt2x00_dev *rt2x00dev,
1011 enum dev_state state)
1020 put_to_sleep = (state != STATE_AWAKE);
1023 rt2x00_set_field16(®, MAC_CSR17_BBP_DESIRE_STATE, state);
1024 rt2x00_set_field16(®, MAC_CSR17_RF_DESIRE_STATE, state);
1025 rt2x00_set_field16(®, MAC_CSR17_PUT_TO_SLEEP, put_to_sleep);
1026 rt2500usb_register_write(rt2x00dev, MAC_CSR17, reg);
1027 rt2x00_set_field16(®, MAC_CSR17_SET_STATE, 1);
1028 rt2500usb_register_write(rt2x00dev, MAC_CSR17, reg);
1031 * Device is not guaranteed to be in the requested state yet.
1032 * We must wait until the register indicates that the
1033 * device has entered the correct state.
1035 for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
1036 rt2500usb_register_read(rt2x00dev, MAC_CSR17, ®2);
1037 bbp_state = rt2x00_get_field16(reg2, MAC_CSR17_BBP_CURR_STATE);
1038 rf_state = rt2x00_get_field16(reg2, MAC_CSR17_RF_CURR_STATE);
1039 if (bbp_state == state && rf_state == state)
1041 rt2500usb_register_write(rt2x00dev, MAC_CSR17, reg);
1045 NOTICE(rt2x00dev, "Device failed to enter state %d, "
1046 "current device state: bbp %d and rf %d.\n",
1047 state, bbp_state, rf_state);
1052 static int rt2500usb_set_device_state(struct rt2x00_dev *rt2x00dev,
1053 enum dev_state state)
1058 case STATE_RADIO_ON:
1059 retval = rt2500usb_enable_radio(rt2x00dev);
1061 case STATE_RADIO_OFF:
1062 rt2500usb_disable_radio(rt2x00dev);
1064 case STATE_RADIO_RX_ON:
1065 case STATE_RADIO_RX_OFF:
1066 rt2500usb_toggle_rx(rt2x00dev, state);
1068 case STATE_DEEP_SLEEP:
1072 retval = rt2500usb_set_state(rt2x00dev, state);
1083 * TX descriptor initialization
1085 static void rt2500usb_write_tx_desc(struct rt2x00_dev *rt2x00dev,
1086 struct data_desc *txd,
1087 struct data_entry_desc *desc,
1088 struct ieee80211_hdr *ieee80211hdr,
1089 unsigned int length,
1090 struct ieee80211_tx_control *control)
1095 * Start writing the descriptor words.
1097 rt2x00_desc_read(txd, 1, &word);
1098 rt2x00_set_field32(&word, TXD_W1_IV_OFFSET, IEEE80211_HEADER);
1099 rt2x00_set_field32(&word, TXD_W1_AIFS, desc->aifs);
1100 rt2x00_set_field32(&word, TXD_W1_CWMIN, desc->cw_min);
1101 rt2x00_set_field32(&word, TXD_W1_CWMAX, desc->cw_max);
1102 rt2x00_desc_write(txd, 1, word);
1104 rt2x00_desc_read(txd, 2, &word);
1105 rt2x00_set_field32(&word, TXD_W2_PLCP_SIGNAL, desc->signal);
1106 rt2x00_set_field32(&word, TXD_W2_PLCP_SERVICE, desc->service);
1107 rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_LOW, desc->length_low);
1108 rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_HIGH, desc->length_high);
1109 rt2x00_desc_write(txd, 2, word);
1111 rt2x00_desc_read(txd, 0, &word);
1112 rt2x00_set_field32(&word, TXD_W0_RETRY_LIMIT, control->retry_limit);
1113 rt2x00_set_field32(&word, TXD_W0_MORE_FRAG,
1114 test_bit(ENTRY_TXD_MORE_FRAG, &desc->flags));
1115 rt2x00_set_field32(&word, TXD_W0_ACK,
1116 !(control->flags & IEEE80211_TXCTL_NO_ACK));
1117 rt2x00_set_field32(&word, TXD_W0_TIMESTAMP,
1118 test_bit(ENTRY_TXD_REQ_TIMESTAMP, &desc->flags));
1119 rt2x00_set_field32(&word, TXD_W0_OFDM,
1120 test_bit(ENTRY_TXD_OFDM_RATE, &desc->flags));
1121 rt2x00_set_field32(&word, TXD_W0_NEW_SEQ,
1122 !!(control->flags & IEEE80211_TXCTL_FIRST_FRAGMENT));
1123 rt2x00_set_field32(&word, TXD_W0_IFS, desc->ifs);
1124 rt2x00_set_field32(&word, TXD_W0_DATABYTE_COUNT, length);
1125 rt2x00_set_field32(&word, TXD_W0_CIPHER, CIPHER_NONE);
1126 rt2x00_desc_write(txd, 0, word);
1130 * TX data initialization
1132 static void rt2500usb_kick_tx_queue(struct rt2x00_dev *rt2x00dev,
1137 if (queue != IEEE80211_TX_QUEUE_BEACON)
1140 rt2500usb_register_read(rt2x00dev, TXRX_CSR19, ®);
1141 if (!rt2x00_get_field16(reg, TXRX_CSR19_BEACON_GEN)) {
1142 rt2x00_set_field16(®, TXRX_CSR19_BEACON_GEN, 1);
1144 * Beacon generation will fail initially.
1145 * To prevent this we need to register the TXRX_CSR19
1146 * register several times.
1148 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1149 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, 0);
1150 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1151 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, 0);
1152 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1157 * RX control handlers
1159 static int rt2500usb_fill_rxdone(struct data_entry *entry,
1160 int *signal, int *rssi, int *ofdm, int *size)
1162 struct urb *urb = entry->priv;
1163 struct data_desc *rxd = (struct data_desc *)(entry->skb->data +
1164 (urb->actual_length -
1165 entry->ring->desc_size));
1169 rt2x00_desc_read(rxd, 0, &word0);
1170 rt2x00_desc_read(rxd, 1, &word1);
1172 if (rt2x00_get_field32(word0, RXD_W0_CRC_ERROR) ||
1173 rt2x00_get_field32(word0, RXD_W0_PHYSICAL_ERROR) ||
1174 rt2x00_get_field32(word0, RXD_W0_CIPHER_ERROR))
1178 * Obtain the status about this packet.
1180 *signal = rt2x00_get_field32(word1, RXD_W1_SIGNAL);
1181 *rssi = rt2x00_get_field32(word1, RXD_W1_RSSI) -
1182 entry->ring->rt2x00dev->rssi_offset;
1183 *ofdm = rt2x00_get_field32(word0, RXD_W0_OFDM);
1184 *size = rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT);
1190 * Interrupt functions.
1192 static void rt2500usb_beacondone(struct urb *urb)
1194 struct data_entry *entry = (struct data_entry *)urb->context;
1195 struct data_ring *ring = entry->ring;
1197 if (!test_bit(DEVICE_ENABLED_RADIO, &ring->rt2x00dev->flags))
1201 * Check if this was the guardian beacon,
1202 * if that was the case we need to send the real beacon now.
1203 * Otherwise we should free the sk_buffer, the device
1204 * should be doing the rest of the work now.
1206 if (ring->index == 1) {
1207 rt2x00_ring_index_done_inc(ring);
1208 entry = rt2x00_get_data_entry(ring);
1209 usb_submit_urb(entry->priv, GFP_ATOMIC);
1210 rt2x00_ring_index_inc(ring);
1211 } else if (ring->index_done == 1) {
1212 entry = rt2x00_get_data_entry_done(ring);
1214 dev_kfree_skb(entry->skb);
1217 rt2x00_ring_index_done_inc(ring);
1222 * Device probe functions.
1224 static int rt2500usb_validate_eeprom(struct rt2x00_dev *rt2x00dev)
1229 rt2x00usb_eeprom_read(rt2x00dev, rt2x00dev->eeprom, EEPROM_SIZE);
1232 * Start validation of the data that has been read.
1234 mac = rt2x00_eeprom_addr(rt2x00dev, EEPROM_MAC_ADDR_0);
1235 if (!is_valid_ether_addr(mac)) {
1236 random_ether_addr(mac);
1237 EEPROM(rt2x00dev, "MAC: " MAC_FMT "\n", MAC_ARG(mac));
1240 rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &word);
1241 if (word == 0xffff) {
1242 rt2x00_set_field16(&word, EEPROM_ANTENNA_NUM, 2);
1243 rt2x00_set_field16(&word, EEPROM_ANTENNA_TX_DEFAULT, 0);
1244 rt2x00_set_field16(&word, EEPROM_ANTENNA_RX_DEFAULT, 0);
1245 rt2x00_set_field16(&word, EEPROM_ANTENNA_LED_MODE, 0);
1246 rt2x00_set_field16(&word, EEPROM_ANTENNA_DYN_TXAGC, 0);
1247 rt2x00_set_field16(&word, EEPROM_ANTENNA_HARDWARE_RADIO, 0);
1248 rt2x00_set_field16(&word, EEPROM_ANTENNA_RF_TYPE, RF2522);
1249 rt2x00_eeprom_write(rt2x00dev, EEPROM_ANTENNA, word);
1250 EEPROM(rt2x00dev, "Antenna: 0x%04x\n", word);
1253 rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &word);
1254 if (word == 0xffff) {
1255 rt2x00_set_field16(&word, EEPROM_NIC_CARDBUS_ACCEL, 0);
1256 rt2x00_set_field16(&word, EEPROM_NIC_DYN_BBP_TUNE, 0);
1257 rt2x00_set_field16(&word, EEPROM_NIC_CCK_TX_POWER, 0);
1258 rt2x00_eeprom_write(rt2x00dev, EEPROM_NIC, word);
1259 EEPROM(rt2x00dev, "NIC: 0x%04x\n", word);
1262 rt2x00_eeprom_read(rt2x00dev, EEPROM_CALIBRATE_OFFSET, &word);
1263 if (word == 0xffff) {
1264 rt2x00_set_field16(&word, EEPROM_CALIBRATE_OFFSET_RSSI,
1265 DEFAULT_RSSI_OFFSET);
1266 rt2x00_eeprom_write(rt2x00dev, EEPROM_CALIBRATE_OFFSET, word);
1267 EEPROM(rt2x00dev, "Calibrate offset: 0x%04x\n", word);
1270 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE, &word);
1271 if (word == 0xffff) {
1272 rt2x00_set_field16(&word, EEPROM_BBPTUNE_THRESHOLD, 45);
1273 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE, word);
1274 EEPROM(rt2x00dev, "BBPtune: 0x%04x\n", word);
1277 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_VGC, &word);
1278 if (word == 0xffff) {
1279 rt2x00_set_field16(&word, EEPROM_BBPTUNE_VGCUPPER, 0x40);
1280 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_VGC, word);
1281 EEPROM(rt2x00dev, "BBPtune vgc: 0x%04x\n", word);
1284 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R17, &word);
1285 if (word == 0xffff) {
1286 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R17_LOW, 0x48);
1287 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R17_HIGH, 0x41);
1288 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R17, word);
1289 EEPROM(rt2x00dev, "BBPtune r17: 0x%04x\n", word);
1292 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R24, &word);
1293 if (word == 0xffff) {
1294 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R24_LOW, 0x40);
1295 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R24_HIGH, 0x80);
1296 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R24, word);
1297 EEPROM(rt2x00dev, "BBPtune r24: 0x%04x\n", word);
1300 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R25, &word);
1301 if (word == 0xffff) {
1302 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R25_LOW, 0x40);
1303 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R25_HIGH, 0x50);
1304 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R25, word);
1305 EEPROM(rt2x00dev, "BBPtune r25: 0x%04x\n", word);
1308 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R61, &word);
1309 if (word == 0xffff) {
1310 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R61_LOW, 0x60);
1311 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R61_HIGH, 0x6d);
1312 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R61, word);
1313 EEPROM(rt2x00dev, "BBPtune r61: 0x%04x\n", word);
1319 static int rt2500usb_init_eeprom(struct rt2x00_dev *rt2x00dev)
1326 * Read EEPROM word for configuration.
1328 rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &eeprom);
1331 * Identify RF chipset.
1333 value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RF_TYPE);
1334 rt2500usb_register_read(rt2x00dev, MAC_CSR0, ®);
1335 rt2x00_set_chip(rt2x00dev, RT2570, value, reg);
1337 if (rt2x00_rev(&rt2x00dev->chip, 0xffff0)) {
1338 ERROR(rt2x00dev, "Invalid RT chipset detected.\n");
1342 if (!rt2x00_rf(&rt2x00dev->chip, RF2522) &&
1343 !rt2x00_rf(&rt2x00dev->chip, RF2523) &&
1344 !rt2x00_rf(&rt2x00dev->chip, RF2524) &&
1345 !rt2x00_rf(&rt2x00dev->chip, RF2525) &&
1346 !rt2x00_rf(&rt2x00dev->chip, RF2525E) &&
1347 !rt2x00_rf(&rt2x00dev->chip, RF5222)) {
1348 ERROR(rt2x00dev, "Invalid RF chipset detected.\n");
1353 * Identify default antenna configuration.
1355 rt2x00dev->hw->conf.antenna_sel_tx =
1356 rt2x00_get_field16(eeprom, EEPROM_ANTENNA_TX_DEFAULT);
1357 rt2x00dev->hw->conf.antenna_sel_rx =
1358 rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RX_DEFAULT);
1361 * Store led mode, for correct led behaviour.
1363 rt2x00dev->led_mode =
1364 rt2x00_get_field16(eeprom, EEPROM_ANTENNA_LED_MODE);
1367 * Check if the BBP tuning should be disabled.
1369 rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &eeprom);
1370 if (rt2x00_get_field16(eeprom, EEPROM_NIC_DYN_BBP_TUNE))
1371 __set_bit(CONFIG_DISABLE_LINK_TUNING, &rt2x00dev->flags);
1374 * Read the RSSI <-> dBm offset information.
1376 rt2x00_eeprom_read(rt2x00dev, EEPROM_CALIBRATE_OFFSET, &eeprom);
1377 rt2x00dev->rssi_offset =
1378 rt2x00_get_field16(eeprom, EEPROM_CALIBRATE_OFFSET_RSSI);
1384 * RF value list for RF2522
1387 static const struct rf_channel rf_vals_bg_2522[] = {
1388 { 1, 0x00002050, 0x000c1fda, 0x00000101, 0 },
1389 { 2, 0x00002050, 0x000c1fee, 0x00000101, 0 },
1390 { 3, 0x00002050, 0x000c2002, 0x00000101, 0 },
1391 { 4, 0x00002050, 0x000c2016, 0x00000101, 0 },
1392 { 5, 0x00002050, 0x000c202a, 0x00000101, 0 },
1393 { 6, 0x00002050, 0x000c203e, 0x00000101, 0 },
1394 { 7, 0x00002050, 0x000c2052, 0x00000101, 0 },
1395 { 8, 0x00002050, 0x000c2066, 0x00000101, 0 },
1396 { 9, 0x00002050, 0x000c207a, 0x00000101, 0 },
1397 { 10, 0x00002050, 0x000c208e, 0x00000101, 0 },
1398 { 11, 0x00002050, 0x000c20a2, 0x00000101, 0 },
1399 { 12, 0x00002050, 0x000c20b6, 0x00000101, 0 },
1400 { 13, 0x00002050, 0x000c20ca, 0x00000101, 0 },
1401 { 14, 0x00002050, 0x000c20fa, 0x00000101, 0 },
1405 * RF value list for RF2523
1408 static const struct rf_channel rf_vals_bg_2523[] = {
1409 { 1, 0x00022010, 0x00000c9e, 0x000e0111, 0x00000a1b },
1410 { 2, 0x00022010, 0x00000ca2, 0x000e0111, 0x00000a1b },
1411 { 3, 0x00022010, 0x00000ca6, 0x000e0111, 0x00000a1b },
1412 { 4, 0x00022010, 0x00000caa, 0x000e0111, 0x00000a1b },
1413 { 5, 0x00022010, 0x00000cae, 0x000e0111, 0x00000a1b },
1414 { 6, 0x00022010, 0x00000cb2, 0x000e0111, 0x00000a1b },
1415 { 7, 0x00022010, 0x00000cb6, 0x000e0111, 0x00000a1b },
1416 { 8, 0x00022010, 0x00000cba, 0x000e0111, 0x00000a1b },
1417 { 9, 0x00022010, 0x00000cbe, 0x000e0111, 0x00000a1b },
1418 { 10, 0x00022010, 0x00000d02, 0x000e0111, 0x00000a1b },
1419 { 11, 0x00022010, 0x00000d06, 0x000e0111, 0x00000a1b },
1420 { 12, 0x00022010, 0x00000d0a, 0x000e0111, 0x00000a1b },
1421 { 13, 0x00022010, 0x00000d0e, 0x000e0111, 0x00000a1b },
1422 { 14, 0x00022010, 0x00000d1a, 0x000e0111, 0x00000a03 },
1426 * RF value list for RF2524
1429 static const struct rf_channel rf_vals_bg_2524[] = {
1430 { 1, 0x00032020, 0x00000c9e, 0x00000101, 0x00000a1b },
1431 { 2, 0x00032020, 0x00000ca2, 0x00000101, 0x00000a1b },
1432 { 3, 0x00032020, 0x00000ca6, 0x00000101, 0x00000a1b },
1433 { 4, 0x00032020, 0x00000caa, 0x00000101, 0x00000a1b },
1434 { 5, 0x00032020, 0x00000cae, 0x00000101, 0x00000a1b },
1435 { 6, 0x00032020, 0x00000cb2, 0x00000101, 0x00000a1b },
1436 { 7, 0x00032020, 0x00000cb6, 0x00000101, 0x00000a1b },
1437 { 8, 0x00032020, 0x00000cba, 0x00000101, 0x00000a1b },
1438 { 9, 0x00032020, 0x00000cbe, 0x00000101, 0x00000a1b },
1439 { 10, 0x00032020, 0x00000d02, 0x00000101, 0x00000a1b },
1440 { 11, 0x00032020, 0x00000d06, 0x00000101, 0x00000a1b },
1441 { 12, 0x00032020, 0x00000d0a, 0x00000101, 0x00000a1b },
1442 { 13, 0x00032020, 0x00000d0e, 0x00000101, 0x00000a1b },
1443 { 14, 0x00032020, 0x00000d1a, 0x00000101, 0x00000a03 },
1447 * RF value list for RF2525
1450 static const struct rf_channel rf_vals_bg_2525[] = {
1451 { 1, 0x00022020, 0x00080c9e, 0x00060111, 0x00000a1b },
1452 { 2, 0x00022020, 0x00080ca2, 0x00060111, 0x00000a1b },
1453 { 3, 0x00022020, 0x00080ca6, 0x00060111, 0x00000a1b },
1454 { 4, 0x00022020, 0x00080caa, 0x00060111, 0x00000a1b },
1455 { 5, 0x00022020, 0x00080cae, 0x00060111, 0x00000a1b },
1456 { 6, 0x00022020, 0x00080cb2, 0x00060111, 0x00000a1b },
1457 { 7, 0x00022020, 0x00080cb6, 0x00060111, 0x00000a1b },
1458 { 8, 0x00022020, 0x00080cba, 0x00060111, 0x00000a1b },
1459 { 9, 0x00022020, 0x00080cbe, 0x00060111, 0x00000a1b },
1460 { 10, 0x00022020, 0x00080d02, 0x00060111, 0x00000a1b },
1461 { 11, 0x00022020, 0x00080d06, 0x00060111, 0x00000a1b },
1462 { 12, 0x00022020, 0x00080d0a, 0x00060111, 0x00000a1b },
1463 { 13, 0x00022020, 0x00080d0e, 0x00060111, 0x00000a1b },
1464 { 14, 0x00022020, 0x00080d1a, 0x00060111, 0x00000a03 },
1468 * RF value list for RF2525e
1471 static const struct rf_channel rf_vals_bg_2525e[] = {
1472 { 1, 0x00022010, 0x0000089a, 0x00060111, 0x00000e1b },
1473 { 2, 0x00022010, 0x0000089e, 0x00060111, 0x00000e07 },
1474 { 3, 0x00022010, 0x0000089e, 0x00060111, 0x00000e1b },
1475 { 4, 0x00022010, 0x000008a2, 0x00060111, 0x00000e07 },
1476 { 5, 0x00022010, 0x000008a2, 0x00060111, 0x00000e1b },
1477 { 6, 0x00022010, 0x000008a6, 0x00060111, 0x00000e07 },
1478 { 7, 0x00022010, 0x000008a6, 0x00060111, 0x00000e1b },
1479 { 8, 0x00022010, 0x000008aa, 0x00060111, 0x00000e07 },
1480 { 9, 0x00022010, 0x000008aa, 0x00060111, 0x00000e1b },
1481 { 10, 0x00022010, 0x000008ae, 0x00060111, 0x00000e07 },
1482 { 11, 0x00022010, 0x000008ae, 0x00060111, 0x00000e1b },
1483 { 12, 0x00022010, 0x000008b2, 0x00060111, 0x00000e07 },
1484 { 13, 0x00022010, 0x000008b2, 0x00060111, 0x00000e1b },
1485 { 14, 0x00022010, 0x000008b6, 0x00060111, 0x00000e23 },
1489 * RF value list for RF5222
1490 * Supports: 2.4 GHz & 5.2 GHz
1492 static const struct rf_channel rf_vals_5222[] = {
1493 { 1, 0x00022020, 0x00001136, 0x00000101, 0x00000a0b },
1494 { 2, 0x00022020, 0x0000113a, 0x00000101, 0x00000a0b },
1495 { 3, 0x00022020, 0x0000113e, 0x00000101, 0x00000a0b },
1496 { 4, 0x00022020, 0x00001182, 0x00000101, 0x00000a0b },
1497 { 5, 0x00022020, 0x00001186, 0x00000101, 0x00000a0b },
1498 { 6, 0x00022020, 0x0000118a, 0x00000101, 0x00000a0b },
1499 { 7, 0x00022020, 0x0000118e, 0x00000101, 0x00000a0b },
1500 { 8, 0x00022020, 0x00001192, 0x00000101, 0x00000a0b },
1501 { 9, 0x00022020, 0x00001196, 0x00000101, 0x00000a0b },
1502 { 10, 0x00022020, 0x0000119a, 0x00000101, 0x00000a0b },
1503 { 11, 0x00022020, 0x0000119e, 0x00000101, 0x00000a0b },
1504 { 12, 0x00022020, 0x000011a2, 0x00000101, 0x00000a0b },
1505 { 13, 0x00022020, 0x000011a6, 0x00000101, 0x00000a0b },
1506 { 14, 0x00022020, 0x000011ae, 0x00000101, 0x00000a1b },
1508 /* 802.11 UNI / HyperLan 2 */
1509 { 36, 0x00022010, 0x00018896, 0x00000101, 0x00000a1f },
1510 { 40, 0x00022010, 0x0001889a, 0x00000101, 0x00000a1f },
1511 { 44, 0x00022010, 0x0001889e, 0x00000101, 0x00000a1f },
1512 { 48, 0x00022010, 0x000188a2, 0x00000101, 0x00000a1f },
1513 { 52, 0x00022010, 0x000188a6, 0x00000101, 0x00000a1f },
1514 { 66, 0x00022010, 0x000188aa, 0x00000101, 0x00000a1f },
1515 { 60, 0x00022010, 0x000188ae, 0x00000101, 0x00000a1f },
1516 { 64, 0x00022010, 0x000188b2, 0x00000101, 0x00000a1f },
1518 /* 802.11 HyperLan 2 */
1519 { 100, 0x00022010, 0x00008802, 0x00000101, 0x00000a0f },
1520 { 104, 0x00022010, 0x00008806, 0x00000101, 0x00000a0f },
1521 { 108, 0x00022010, 0x0000880a, 0x00000101, 0x00000a0f },
1522 { 112, 0x00022010, 0x0000880e, 0x00000101, 0x00000a0f },
1523 { 116, 0x00022010, 0x00008812, 0x00000101, 0x00000a0f },
1524 { 120, 0x00022010, 0x00008816, 0x00000101, 0x00000a0f },
1525 { 124, 0x00022010, 0x0000881a, 0x00000101, 0x00000a0f },
1526 { 128, 0x00022010, 0x0000881e, 0x00000101, 0x00000a0f },
1527 { 132, 0x00022010, 0x00008822, 0x00000101, 0x00000a0f },
1528 { 136, 0x00022010, 0x00008826, 0x00000101, 0x00000a0f },
1531 { 140, 0x00022010, 0x0000882a, 0x00000101, 0x00000a0f },
1532 { 149, 0x00022020, 0x000090a6, 0x00000101, 0x00000a07 },
1533 { 153, 0x00022020, 0x000090ae, 0x00000101, 0x00000a07 },
1534 { 157, 0x00022020, 0x000090b6, 0x00000101, 0x00000a07 },
1535 { 161, 0x00022020, 0x000090be, 0x00000101, 0x00000a07 },
1538 static void rt2500usb_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
1540 struct hw_mode_spec *spec = &rt2x00dev->spec;
1545 * Initialize all hw fields.
1547 rt2x00dev->hw->flags =
1548 IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE |
1549 IEEE80211_HW_RX_INCLUDES_FCS |
1550 IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
1551 IEEE80211_HW_MONITOR_DURING_OPER |
1552 IEEE80211_HW_NO_PROBE_FILTERING;
1553 rt2x00dev->hw->extra_tx_headroom = TXD_DESC_SIZE;
1554 rt2x00dev->hw->max_signal = MAX_SIGNAL;
1555 rt2x00dev->hw->max_rssi = MAX_RX_SSI;
1556 rt2x00dev->hw->queues = 2;
1558 SET_IEEE80211_DEV(rt2x00dev->hw, &rt2x00dev_usb(rt2x00dev)->dev);
1559 SET_IEEE80211_PERM_ADDR(rt2x00dev->hw,
1560 rt2x00_eeprom_addr(rt2x00dev,
1561 EEPROM_MAC_ADDR_0));
1564 * Convert tx_power array in eeprom.
1566 txpower = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_START);
1567 for (i = 0; i < 14; i++)
1568 txpower[i] = TXPOWER_FROM_DEV(txpower[i]);
1571 * Initialize hw_mode information.
1573 spec->num_modes = 2;
1574 spec->num_rates = 12;
1575 spec->tx_power_a = NULL;
1576 spec->tx_power_bg = txpower;
1577 spec->tx_power_default = DEFAULT_TXPOWER;
1579 if (rt2x00_rf(&rt2x00dev->chip, RF2522)) {
1580 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2522);
1581 spec->channels = rf_vals_bg_2522;
1582 } else if (rt2x00_rf(&rt2x00dev->chip, RF2523)) {
1583 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2523);
1584 spec->channels = rf_vals_bg_2523;
1585 } else if (rt2x00_rf(&rt2x00dev->chip, RF2524)) {
1586 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2524);
1587 spec->channels = rf_vals_bg_2524;
1588 } else if (rt2x00_rf(&rt2x00dev->chip, RF2525)) {
1589 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2525);
1590 spec->channels = rf_vals_bg_2525;
1591 } else if (rt2x00_rf(&rt2x00dev->chip, RF2525E)) {
1592 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2525e);
1593 spec->channels = rf_vals_bg_2525e;
1594 } else if (rt2x00_rf(&rt2x00dev->chip, RF5222)) {
1595 spec->num_channels = ARRAY_SIZE(rf_vals_5222);
1596 spec->channels = rf_vals_5222;
1597 spec->num_modes = 3;
1601 static int rt2500usb_probe_hw(struct rt2x00_dev *rt2x00dev)
1606 * Allocate eeprom data.
1608 retval = rt2500usb_validate_eeprom(rt2x00dev);
1612 retval = rt2500usb_init_eeprom(rt2x00dev);
1617 * Initialize hw specifications.
1619 rt2500usb_probe_hw_mode(rt2x00dev);
1622 * USB devices require scheduled packet filter toggling
1623 *This device requires the beacon ring
1625 __set_bit(PACKET_FILTER_SCHEDULED, &rt2x00dev->flags);
1626 __set_bit(REQUIRE_BEACON_RING, &rt2x00dev->flags);
1629 * Set the rssi offset.
1631 rt2x00dev->rssi_offset = DEFAULT_RSSI_OFFSET;
1637 * IEEE80211 stack callback functions.
1639 static int rt2500usb_beacon_update(struct ieee80211_hw *hw,
1640 struct sk_buff *skb,
1641 struct ieee80211_tx_control *control)
1643 struct rt2x00_dev *rt2x00dev = hw->priv;
1644 struct usb_device *usb_dev =
1645 interface_to_usbdev(rt2x00dev_usb(rt2x00dev));
1646 struct data_ring *ring =
1647 rt2x00lib_get_ring(rt2x00dev, IEEE80211_TX_QUEUE_BEACON);
1648 struct data_entry *beacon;
1649 struct data_entry *guardian;
1653 * Just in case the ieee80211 doesn't set this,
1654 * but we need this queue set for the descriptor
1657 control->queue = IEEE80211_TX_QUEUE_BEACON;
1660 * Obtain 2 entries, one for the guardian byte,
1661 * the second for the actual beacon.
1663 guardian = rt2x00_get_data_entry(ring);
1664 rt2x00_ring_index_inc(ring);
1665 beacon = rt2x00_get_data_entry(ring);
1668 * First we create the beacon.
1670 skb_push(skb, ring->desc_size);
1671 rt2x00lib_write_tx_desc(rt2x00dev, (struct data_desc *)skb->data,
1672 (struct ieee80211_hdr *)(skb->data +
1674 skb->len - ring->desc_size, control);
1677 * Length passed to usb_fill_urb cannot be an odd number,
1678 * so add 1 byte to make it even.
1684 usb_fill_bulk_urb(beacon->priv, usb_dev,
1685 usb_sndbulkpipe(usb_dev, 1),
1686 skb->data, length, rt2500usb_beacondone, beacon);
1691 * Second we need to create the guardian byte.
1692 * We only need a single byte, so lets recycle
1693 * the 'flags' field we are not using for beacons.
1695 guardian->flags = 0;
1696 usb_fill_bulk_urb(guardian->priv, usb_dev,
1697 usb_sndbulkpipe(usb_dev, 1),
1698 &guardian->flags, 1, rt2500usb_beacondone, guardian);
1701 * Send out the guardian byte.
1703 usb_submit_urb(guardian->priv, GFP_ATOMIC);
1706 * Enable beacon generation.
1708 rt2500usb_kick_tx_queue(rt2x00dev, IEEE80211_TX_QUEUE_BEACON);
1713 static const struct ieee80211_ops rt2500usb_mac80211_ops = {
1715 .add_interface = rt2x00mac_add_interface,
1716 .remove_interface = rt2x00mac_remove_interface,
1717 .config = rt2x00mac_config,
1718 .config_interface = rt2x00mac_config_interface,
1719 .set_multicast_list = rt2x00mac_set_multicast_list,
1720 .get_stats = rt2x00mac_get_stats,
1721 .conf_tx = rt2x00mac_conf_tx,
1722 .get_tx_stats = rt2x00mac_get_tx_stats,
1723 .beacon_update = rt2500usb_beacon_update,
1726 static const struct rt2x00lib_ops rt2500usb_rt2x00_ops = {
1727 .probe_hw = rt2500usb_probe_hw,
1728 .initialize = rt2x00usb_initialize,
1729 .uninitialize = rt2x00usb_uninitialize,
1730 .set_device_state = rt2500usb_set_device_state,
1731 .link_stats = rt2500usb_link_stats,
1732 .reset_tuner = rt2500usb_reset_tuner,
1733 .link_tuner = rt2500usb_link_tuner,
1734 .write_tx_desc = rt2500usb_write_tx_desc,
1735 .write_tx_data = rt2x00usb_write_tx_data,
1736 .kick_tx_queue = rt2500usb_kick_tx_queue,
1737 .fill_rxdone = rt2500usb_fill_rxdone,
1738 .config_mac_addr = rt2500usb_config_mac_addr,
1739 .config_bssid = rt2500usb_config_bssid,
1740 .config_packet_filter = rt2500usb_config_packet_filter,
1741 .config_type = rt2500usb_config_type,
1742 .config = rt2500usb_config,
1745 static const struct rt2x00_ops rt2500usb_ops = {
1747 .rxd_size = RXD_DESC_SIZE,
1748 .txd_size = TXD_DESC_SIZE,
1749 .eeprom_size = EEPROM_SIZE,
1751 .lib = &rt2500usb_rt2x00_ops,
1752 .hw = &rt2500usb_mac80211_ops,
1753 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
1754 .debugfs = &rt2500usb_rt2x00debug,
1755 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
1759 * rt2500usb module information.
1761 static struct usb_device_id rt2500usb_device_table[] = {
1763 { USB_DEVICE(0x0b05, 0x1706), USB_DEVICE_DATA(&rt2500usb_ops) },
1764 { USB_DEVICE(0x0b05, 0x1707), USB_DEVICE_DATA(&rt2500usb_ops) },
1766 { USB_DEVICE(0x050d, 0x7050), USB_DEVICE_DATA(&rt2500usb_ops) },
1767 { USB_DEVICE(0x050d, 0x7051), USB_DEVICE_DATA(&rt2500usb_ops) },
1768 { USB_DEVICE(0x050d, 0x705a), USB_DEVICE_DATA(&rt2500usb_ops) },
1770 { USB_DEVICE(0x13b1, 0x000d), USB_DEVICE_DATA(&rt2500usb_ops) },
1771 { USB_DEVICE(0x13b1, 0x0011), USB_DEVICE_DATA(&rt2500usb_ops) },
1772 { USB_DEVICE(0x13b1, 0x001a), USB_DEVICE_DATA(&rt2500usb_ops) },
1774 { USB_DEVICE(0x14b2, 0x3c02), USB_DEVICE_DATA(&rt2500usb_ops) },
1776 { USB_DEVICE(0x2001, 0x3c00), USB_DEVICE_DATA(&rt2500usb_ops) },
1778 { USB_DEVICE(0x1044, 0x8001), USB_DEVICE_DATA(&rt2500usb_ops) },
1779 { USB_DEVICE(0x1044, 0x8007), USB_DEVICE_DATA(&rt2500usb_ops) },
1781 { USB_DEVICE(0x06f8, 0xe000), USB_DEVICE_DATA(&rt2500usb_ops) },
1783 { USB_DEVICE(0x0411, 0x0066), USB_DEVICE_DATA(&rt2500usb_ops) },
1784 { USB_DEVICE(0x0411, 0x0067), USB_DEVICE_DATA(&rt2500usb_ops) },
1785 { USB_DEVICE(0x0411, 0x008b), USB_DEVICE_DATA(&rt2500usb_ops) },
1786 { USB_DEVICE(0x0411, 0x0097), USB_DEVICE_DATA(&rt2500usb_ops) },
1789 { USB_DEVICE(0x0db0, 0x6861), USB_DEVICE_DATA(&rt2500usb_ops) },
1790 { USB_DEVICE(0x0db0, 0x6865), USB_DEVICE_DATA(&rt2500usb_ops) },
1791 { USB_DEVICE(0x0db0, 0x6869), USB_DEVICE_DATA(&rt2500usb_ops) },
1793 { USB_DEVICE(0x148f, 0x1706), USB_DEVICE_DATA(&rt2500usb_ops) },
1794 { USB_DEVICE(0x148f, 0x2570), USB_DEVICE_DATA(&rt2500usb_ops) },
1795 { USB_DEVICE(0x148f, 0x2573), USB_DEVICE_DATA(&rt2500usb_ops) },
1796 { USB_DEVICE(0x148f, 0x9020), USB_DEVICE_DATA(&rt2500usb_ops) },
1798 { USB_DEVICE(0x0681, 0x3c06), USB_DEVICE_DATA(&rt2500usb_ops) },
1800 { USB_DEVICE(0x0707, 0xee13), USB_DEVICE_DATA(&rt2500usb_ops) },
1802 { USB_DEVICE(0x114b, 0x0110), USB_DEVICE_DATA(&rt2500usb_ops) },
1804 { USB_DEVICE(0x0eb0, 0x9020), USB_DEVICE_DATA(&rt2500usb_ops) },
1806 { USB_DEVICE(0x5a57, 0x0260), USB_DEVICE_DATA(&rt2500usb_ops) },
1810 MODULE_AUTHOR(DRV_PROJECT);
1811 MODULE_VERSION(DRV_VERSION);
1812 MODULE_DESCRIPTION("Ralink RT2500 USB Wireless LAN driver.");
1813 MODULE_SUPPORTED_DEVICE("Ralink RT2570 USB chipset based cards");
1814 MODULE_DEVICE_TABLE(usb, rt2500usb_device_table);
1815 MODULE_LICENSE("GPL");
1817 static struct usb_driver rt2500usb_driver = {
1819 .id_table = rt2500usb_device_table,
1820 .probe = rt2x00usb_probe,
1821 .disconnect = rt2x00usb_disconnect,
1822 .suspend = rt2x00usb_suspend,
1823 .resume = rt2x00usb_resume,
1826 static int __init rt2500usb_init(void)
1828 return usb_register(&rt2500usb_driver);
1831 static void __exit rt2500usb_exit(void)
1833 usb_deregister(&rt2500usb_driver);
1836 module_init(rt2500usb_init);
1837 module_exit(rt2500usb_exit);