?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
cris: add arch/cris/include/asm/serial.h
[linux-2.6/next.git] / drivers / net / wireless / rt2x00 / rt2500pci.c
blobc288d951c03433f15196d7dd708f78d8c973d351
1 /*
2 Copyright (C) 2004 - 2009 Ivo van Doorn <IvDoorn@gmail.com>
3 <http://rt2x00.serialmonkey.com>
4
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.
9
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.
14
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.
19 */
20
21 /*
22 Module: rt2500pci
23 Abstract: rt2500pci device specific routines.
24 Supported chipsets: RT2560.
25 */
26
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/pci.h>
33 #include <linux/eeprom_93cx6.h>
34 #include <linux/slab.h>
35
36 #include "rt2x00.h"
37 #include "rt2x00pci.h"
38 #include "rt2500pci.h"
39
40 /*
41 * Register access.
42 * All access to the CSR registers will go through the methods
43 * rt2x00pci_register_read and rt2x00pci_register_write.
44 * BBP and RF register require indirect register access,
45 * and use the CSR registers BBPCSR and RFCSR to achieve this.
46 * These indirect registers work with busy bits,
47 * and we will try maximal REGISTER_BUSY_COUNT times to access
48 * the register while taking a REGISTER_BUSY_DELAY us delay
49 * between each attampt. When the busy bit is still set at that time,
50 * the access attempt is considered to have failed,
51 * and we will print an error.
52 */
53 #define WAIT_FOR_BBP(__dev, __reg) \
54 rt2x00pci_regbusy_read((__dev), BBPCSR, BBPCSR_BUSY, (__reg))
55 #define WAIT_FOR_RF(__dev, __reg) \
56 rt2x00pci_regbusy_read((__dev), RFCSR, RFCSR_BUSY, (__reg))
57
58 static void rt2500pci_bbp_write(struct rt2x00_dev *rt2x00dev,
59 const unsigned int word, const u8 value)
60 {
61 u32 reg;
62
63 mutex_lock(&rt2x00dev->csr_mutex);
64
65 /*
66 * Wait until the BBP becomes available, afterwards we
67 * can safely write the new data into the register.
68 */
69 if (WAIT_FOR_BBP(rt2x00dev, &reg)) {
70 reg = 0;
71 rt2x00_set_field32(&reg, BBPCSR_VALUE, value);
72 rt2x00_set_field32(&reg, BBPCSR_REGNUM, word);
73 rt2x00_set_field32(&reg, BBPCSR_BUSY, 1);
74 rt2x00_set_field32(&reg, BBPCSR_WRITE_CONTROL, 1);
75
76 rt2x00pci_register_write(rt2x00dev, BBPCSR, reg);
77 }
78
79 mutex_unlock(&rt2x00dev->csr_mutex);
80 }
81
82 static void rt2500pci_bbp_read(struct rt2x00_dev *rt2x00dev,
83 const unsigned int word, u8 *value)
84 {
85 u32 reg;
86
87 mutex_lock(&rt2x00dev->csr_mutex);
88
89 /*
90 * Wait until the BBP becomes available, afterwards we
91 * can safely write the read request into the register.
92 * After the data has been written, we wait until hardware
93 * returns the correct value, if at any time the register
94 * doesn't become available in time, reg will be 0xffffffff
95 * which means we return 0xff to the caller.
96 */
97 if (WAIT_FOR_BBP(rt2x00dev, &reg)) {
98 reg = 0;
99 rt2x00_set_field32(&reg, BBPCSR_REGNUM, word);
100 rt2x00_set_field32(&reg, BBPCSR_BUSY, 1);
101 rt2x00_set_field32(&reg, BBPCSR_WRITE_CONTROL, 0);
102
103 rt2x00pci_register_write(rt2x00dev, BBPCSR, reg);
104
105 WAIT_FOR_BBP(rt2x00dev, &reg);
106 }
107
108 *value = rt2x00_get_field32(reg, BBPCSR_VALUE);
109
110 mutex_unlock(&rt2x00dev->csr_mutex);
111 }
112
113 static void rt2500pci_rf_write(struct rt2x00_dev *rt2x00dev,
114 const unsigned int word, const u32 value)
115 {
116 u32 reg;
117
118 mutex_lock(&rt2x00dev->csr_mutex);
119
120 /*
121 * Wait until the RF becomes available, afterwards we
122 * can safely write the new data into the register.
123 */
124 if (WAIT_FOR_RF(rt2x00dev, &reg)) {
125 reg = 0;
126 rt2x00_set_field32(&reg, RFCSR_VALUE, value);
127 rt2x00_set_field32(&reg, RFCSR_NUMBER_OF_BITS, 20);
128 rt2x00_set_field32(&reg, RFCSR_IF_SELECT, 0);
129 rt2x00_set_field32(&reg, RFCSR_BUSY, 1);
130
131 rt2x00pci_register_write(rt2x00dev, RFCSR, reg);
132 rt2x00_rf_write(rt2x00dev, word, value);
133 }
134
135 mutex_unlock(&rt2x00dev->csr_mutex);
136 }
137
138 static void rt2500pci_eepromregister_read(struct eeprom_93cx6 *eeprom)
139 {
140 struct rt2x00_dev *rt2x00dev = eeprom->data;
141 u32 reg;
142
143 rt2x00pci_register_read(rt2x00dev, CSR21, &reg);
144
145 eeprom->reg_data_in = !!rt2x00_get_field32(reg, CSR21_EEPROM_DATA_IN);
146 eeprom->reg_data_out = !!rt2x00_get_field32(reg, CSR21_EEPROM_DATA_OUT);
147 eeprom->reg_data_clock =
148 !!rt2x00_get_field32(reg, CSR21_EEPROM_DATA_CLOCK);
149 eeprom->reg_chip_select =
150 !!rt2x00_get_field32(reg, CSR21_EEPROM_CHIP_SELECT);
151 }
152
153 static void rt2500pci_eepromregister_write(struct eeprom_93cx6 *eeprom)
154 {
155 struct rt2x00_dev *rt2x00dev = eeprom->data;
156 u32 reg = 0;
157
158 rt2x00_set_field32(&reg, CSR21_EEPROM_DATA_IN, !!eeprom->reg_data_in);
159 rt2x00_set_field32(&reg, CSR21_EEPROM_DATA_OUT, !!eeprom->reg_data_out);
160 rt2x00_set_field32(&reg, CSR21_EEPROM_DATA_CLOCK,
161 !!eeprom->reg_data_clock);
162 rt2x00_set_field32(&reg, CSR21_EEPROM_CHIP_SELECT,
163 !!eeprom->reg_chip_select);
164
165 rt2x00pci_register_write(rt2x00dev, CSR21, reg);
166 }
167
168 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
169 static const struct rt2x00debug rt2500pci_rt2x00debug = {
170 .owner = THIS_MODULE,
171 .csr = {
172 .read = rt2x00pci_register_read,
173 .write = rt2x00pci_register_write,
174 .flags = RT2X00DEBUGFS_OFFSET,
175 .word_base = CSR_REG_BASE,
176 .word_size = sizeof(u32),
177 .word_count = CSR_REG_SIZE / sizeof(u32),
178 },
179 .eeprom = {
180 .read = rt2x00_eeprom_read,
181 .write = rt2x00_eeprom_write,
182 .word_base = EEPROM_BASE,
183 .word_size = sizeof(u16),
184 .word_count = EEPROM_SIZE / sizeof(u16),
185 },
186 .bbp = {
187 .read = rt2500pci_bbp_read,
188 .write = rt2500pci_bbp_write,
189 .word_base = BBP_BASE,
190 .word_size = sizeof(u8),
191 .word_count = BBP_SIZE / sizeof(u8),
192 },
193 .rf = {
194 .read = rt2x00_rf_read,
195 .write = rt2500pci_rf_write,
196 .word_base = RF_BASE,
197 .word_size = sizeof(u32),
198 .word_count = RF_SIZE / sizeof(u32),
199 },
200 };
201 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
202
203 static int rt2500pci_rfkill_poll(struct rt2x00_dev *rt2x00dev)
204 {
205 u32 reg;
206
207 rt2x00pci_register_read(rt2x00dev, GPIOCSR, &reg);
208 return rt2x00_get_field32(reg, GPIOCSR_BIT0);
209 }
210
211 #ifdef CONFIG_RT2X00_LIB_LEDS
212 static void rt2500pci_brightness_set(struct led_classdev *led_cdev,
213 enum led_brightness brightness)
214 {
215 struct rt2x00_led *led =
216 container_of(led_cdev, struct rt2x00_led, led_dev);
217 unsigned int enabled = brightness != LED_OFF;
218 u32 reg;
219
220 rt2x00pci_register_read(led->rt2x00dev, LEDCSR, &reg);
221
222 if (led->type == LED_TYPE_RADIO || led->type == LED_TYPE_ASSOC)
223 rt2x00_set_field32(&reg, LEDCSR_LINK, enabled);
224 else if (led->type == LED_TYPE_ACTIVITY)
225 rt2x00_set_field32(&reg, LEDCSR_ACTIVITY, enabled);
226
227 rt2x00pci_register_write(led->rt2x00dev, LEDCSR, reg);
228 }
229
230 static int rt2500pci_blink_set(struct led_classdev *led_cdev,
231 unsigned long *delay_on,
232 unsigned long *delay_off)
233 {
234 struct rt2x00_led *led =
235 container_of(led_cdev, struct rt2x00_led, led_dev);
236 u32 reg;
237
238 rt2x00pci_register_read(led->rt2x00dev, LEDCSR, &reg);
239 rt2x00_set_field32(&reg, LEDCSR_ON_PERIOD, *delay_on);
240 rt2x00_set_field32(&reg, LEDCSR_OFF_PERIOD, *delay_off);
241 rt2x00pci_register_write(led->rt2x00dev, LEDCSR, reg);
242
243 return 0;
244 }
245
246 static void rt2500pci_init_led(struct rt2x00_dev *rt2x00dev,
247 struct rt2x00_led *led,
248 enum led_type type)
249 {
250 led->rt2x00dev = rt2x00dev;
251 led->type = type;
252 led->led_dev.brightness_set = rt2500pci_brightness_set;
253 led->led_dev.blink_set = rt2500pci_blink_set;
254 led->flags = LED_INITIALIZED;
255 }
256 #endif /* CONFIG_RT2X00_LIB_LEDS */
257
258 /*
259 * Configuration handlers.
260 */
261 static void rt2500pci_config_filter(struct rt2x00_dev *rt2x00dev,
262 const unsigned int filter_flags)
263 {
264 u32 reg;
265
266 /*
267 * Start configuration steps.
268 * Note that the version error will always be dropped
269 * and broadcast frames will always be accepted since
270 * there is no filter for it at this time.
271 */
272 rt2x00pci_register_read(rt2x00dev, RXCSR0, &reg);
273 rt2x00_set_field32(&reg, RXCSR0_DROP_CRC,
274 !(filter_flags & FIF_FCSFAIL));
275 rt2x00_set_field32(&reg, RXCSR0_DROP_PHYSICAL,
276 !(filter_flags & FIF_PLCPFAIL));
277 rt2x00_set_field32(&reg, RXCSR0_DROP_CONTROL,
278 !(filter_flags & FIF_CONTROL));
279 rt2x00_set_field32(&reg, RXCSR0_DROP_NOT_TO_ME,
280 !(filter_flags & FIF_PROMISC_IN_BSS));
281 rt2x00_set_field32(&reg, RXCSR0_DROP_TODS,
282 !(filter_flags & FIF_PROMISC_IN_BSS) &&
283 !rt2x00dev->intf_ap_count);
284 rt2x00_set_field32(&reg, RXCSR0_DROP_VERSION_ERROR, 1);
285 rt2x00_set_field32(&reg, RXCSR0_DROP_MCAST,
286 !(filter_flags & FIF_ALLMULTI));
287 rt2x00_set_field32(&reg, RXCSR0_DROP_BCAST, 0);
288 rt2x00pci_register_write(rt2x00dev, RXCSR0, reg);
289 }
290
291 static void rt2500pci_config_intf(struct rt2x00_dev *rt2x00dev,
292 struct rt2x00_intf *intf,
293 struct rt2x00intf_conf *conf,
294 const unsigned int flags)
295 {
296 struct data_queue *queue = rt2x00dev->bcn;
297 unsigned int bcn_preload;
298 u32 reg;
299
300 if (flags & CONFIG_UPDATE_TYPE) {
301 /*
302 * Enable beacon config
303 */
304 bcn_preload = PREAMBLE + GET_DURATION(IEEE80211_HEADER, 20);
305 rt2x00pci_register_read(rt2x00dev, BCNCSR1, &reg);
306 rt2x00_set_field32(&reg, BCNCSR1_PRELOAD, bcn_preload);
307 rt2x00_set_field32(&reg, BCNCSR1_BEACON_CWMIN, queue->cw_min);
308 rt2x00pci_register_write(rt2x00dev, BCNCSR1, reg);
309
310 /*
311 * Enable synchronisation.
312 */
313 rt2x00pci_register_read(rt2x00dev, CSR14, &reg);
314 rt2x00_set_field32(&reg, CSR14_TSF_SYNC, conf->sync);
315 rt2x00pci_register_write(rt2x00dev, CSR14, reg);
316 }
317
318 if (flags & CONFIG_UPDATE_MAC)
319 rt2x00pci_register_multiwrite(rt2x00dev, CSR3,
320 conf->mac, sizeof(conf->mac));
321
322 if (flags & CONFIG_UPDATE_BSSID)
323 rt2x00pci_register_multiwrite(rt2x00dev, CSR5,
324 conf->bssid, sizeof(conf->bssid));
325 }
326
327 static void rt2500pci_config_erp(struct rt2x00_dev *rt2x00dev,
328 struct rt2x00lib_erp *erp,
329 u32 changed)
330 {
331 int preamble_mask;
332 u32 reg;
333
334 /*
335 * When short preamble is enabled, we should set bit 0x08
336 */
337 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
338 preamble_mask = erp->short_preamble << 3;
339
340 rt2x00pci_register_read(rt2x00dev, TXCSR1, &reg);
341 rt2x00_set_field32(&reg, TXCSR1_ACK_TIMEOUT, 0x162);
342 rt2x00_set_field32(&reg, TXCSR1_ACK_CONSUME_TIME, 0xa2);
343 rt2x00_set_field32(&reg, TXCSR1_TSF_OFFSET, IEEE80211_HEADER);
344 rt2x00_set_field32(&reg, TXCSR1_AUTORESPONDER, 1);
345 rt2x00pci_register_write(rt2x00dev, TXCSR1, reg);
346
347 rt2x00pci_register_read(rt2x00dev, ARCSR2, &reg);
348 rt2x00_set_field32(&reg, ARCSR2_SIGNAL, 0x00);
349 rt2x00_set_field32(&reg, ARCSR2_SERVICE, 0x04);
350 rt2x00_set_field32(&reg, ARCSR2_LENGTH,
351 GET_DURATION(ACK_SIZE, 10));
352 rt2x00pci_register_write(rt2x00dev, ARCSR2, reg);
353
354 rt2x00pci_register_read(rt2x00dev, ARCSR3, &reg);
355 rt2x00_set_field32(&reg, ARCSR3_SIGNAL, 0x01 | preamble_mask);
356 rt2x00_set_field32(&reg, ARCSR3_SERVICE, 0x04);
357 rt2x00_set_field32(&reg, ARCSR2_LENGTH,
358 GET_DURATION(ACK_SIZE, 20));
359 rt2x00pci_register_write(rt2x00dev, ARCSR3, reg);
360
361 rt2x00pci_register_read(rt2x00dev, ARCSR4, &reg);
362 rt2x00_set_field32(&reg, ARCSR4_SIGNAL, 0x02 | preamble_mask);
363 rt2x00_set_field32(&reg, ARCSR4_SERVICE, 0x04);
364 rt2x00_set_field32(&reg, ARCSR2_LENGTH,
365 GET_DURATION(ACK_SIZE, 55));
366 rt2x00pci_register_write(rt2x00dev, ARCSR4, reg);
367
368 rt2x00pci_register_read(rt2x00dev, ARCSR5, &reg);
369 rt2x00_set_field32(&reg, ARCSR5_SIGNAL, 0x03 | preamble_mask);
370 rt2x00_set_field32(&reg, ARCSR5_SERVICE, 0x84);
371 rt2x00_set_field32(&reg, ARCSR2_LENGTH,
372 GET_DURATION(ACK_SIZE, 110));
373 rt2x00pci_register_write(rt2x00dev, ARCSR5, reg);
374 }
375
376 if (changed & BSS_CHANGED_BASIC_RATES)
377 rt2x00pci_register_write(rt2x00dev, ARCSR1, erp->basic_rates);
378
379 if (changed & BSS_CHANGED_ERP_SLOT) {
380 rt2x00pci_register_read(rt2x00dev, CSR11, &reg);
381 rt2x00_set_field32(&reg, CSR11_SLOT_TIME, erp->slot_time);
382 rt2x00pci_register_write(rt2x00dev, CSR11, reg);
383
384 rt2x00pci_register_read(rt2x00dev, CSR18, &reg);
385 rt2x00_set_field32(&reg, CSR18_SIFS, erp->sifs);
386 rt2x00_set_field32(&reg, CSR18_PIFS, erp->pifs);
387 rt2x00pci_register_write(rt2x00dev, CSR18, reg);
388
389 rt2x00pci_register_read(rt2x00dev, CSR19, &reg);
390 rt2x00_set_field32(&reg, CSR19_DIFS, erp->difs);
391 rt2x00_set_field32(&reg, CSR19_EIFS, erp->eifs);
392 rt2x00pci_register_write(rt2x00dev, CSR19, reg);
393 }
394
395 if (changed & BSS_CHANGED_BEACON_INT) {
396 rt2x00pci_register_read(rt2x00dev, CSR12, &reg);
397 rt2x00_set_field32(&reg, CSR12_BEACON_INTERVAL,
398 erp->beacon_int * 16);
399 rt2x00_set_field32(&reg, CSR12_CFP_MAX_DURATION,
400 erp->beacon_int * 16);
401 rt2x00pci_register_write(rt2x00dev, CSR12, reg);
402 }
403
404 }
405
406 static void rt2500pci_config_ant(struct rt2x00_dev *rt2x00dev,
407 struct antenna_setup *ant)
408 {
409 u32 reg;
410 u8 r14;
411 u8 r2;
412
413 /*
414 * We should never come here because rt2x00lib is supposed
415 * to catch this and send us the correct antenna explicitely.
416 */
417 BUG_ON(ant->rx == ANTENNA_SW_DIVERSITY ||
418 ant->tx == ANTENNA_SW_DIVERSITY);
419
420 rt2x00pci_register_read(rt2x00dev, BBPCSR1, &reg);
421 rt2500pci_bbp_read(rt2x00dev, 14, &r14);
422 rt2500pci_bbp_read(rt2x00dev, 2, &r2);
423
424 /*
425 * Configure the TX antenna.
426 */
427 switch (ant->tx) {
428 case ANTENNA_A:
429 rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 0);
430 rt2x00_set_field32(&reg, BBPCSR1_CCK, 0);
431 rt2x00_set_field32(&reg, BBPCSR1_OFDM, 0);
432 break;
433 case ANTENNA_B:
434 default:
435 rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 2);
436 rt2x00_set_field32(&reg, BBPCSR1_CCK, 2);
437 rt2x00_set_field32(&reg, BBPCSR1_OFDM, 2);
438 break;
439 }
440
441 /*
442 * Configure the RX antenna.
443 */
444 switch (ant->rx) {
445 case ANTENNA_A:
446 rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 0);
447 break;
448 case ANTENNA_B:
449 default:
450 rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 2);
451 break;
452 }
453
454 /*
455 * RT2525E and RT5222 need to flip TX I/Q
456 */
457 if (rt2x00_rf(rt2x00dev, RF2525E) || rt2x00_rf(rt2x00dev, RF5222)) {
458 rt2x00_set_field8(&r2, BBP_R2_TX_IQ_FLIP, 1);
459 rt2x00_set_field32(&reg, BBPCSR1_CCK_FLIP, 1);
460 rt2x00_set_field32(&reg, BBPCSR1_OFDM_FLIP, 1);
461
462 /*
463 * RT2525E does not need RX I/Q Flip.
464 */
465 if (rt2x00_rf(rt2x00dev, RF2525E))
466 rt2x00_set_field8(&r14, BBP_R14_RX_IQ_FLIP, 0);
467 } else {
468 rt2x00_set_field32(&reg, BBPCSR1_CCK_FLIP, 0);
469 rt2x00_set_field32(&reg, BBPCSR1_OFDM_FLIP, 0);
470 }
471
472 rt2x00pci_register_write(rt2x00dev, BBPCSR1, reg);
473 rt2500pci_bbp_write(rt2x00dev, 14, r14);
474 rt2500pci_bbp_write(rt2x00dev, 2, r2);
475 }
476
477 static void rt2500pci_config_channel(struct rt2x00_dev *rt2x00dev,
478 struct rf_channel *rf, const int txpower)
479 {
480 u8 r70;
481
482 /*
483 * Set TXpower.
484 */
485 rt2x00_set_field32(&rf->rf3, RF3_TXPOWER, TXPOWER_TO_DEV(txpower));
486
487 /*
488 * Switch on tuning bits.
489 * For RT2523 devices we do not need to update the R1 register.
490 */
491 if (!rt2x00_rf(rt2x00dev, RF2523))
492 rt2x00_set_field32(&rf->rf1, RF1_TUNER, 1);
493 rt2x00_set_field32(&rf->rf3, RF3_TUNER, 1);
494
495 /*
496 * For RT2525 we should first set the channel to half band higher.
497 */
498 if (rt2x00_rf(rt2x00dev, RF2525)) {
499 static const u32 vals[] = {
500 0x00080cbe, 0x00080d02, 0x00080d06, 0x00080d0a,
501 0x00080d0e, 0x00080d12, 0x00080d16, 0x00080d1a,
502 0x00080d1e, 0x00080d22, 0x00080d26, 0x00080d2a,
503 0x00080d2e, 0x00080d3a
504 };
505
506 rt2500pci_rf_write(rt2x00dev, 1, rf->rf1);
507 rt2500pci_rf_write(rt2x00dev, 2, vals[rf->channel - 1]);
508 rt2500pci_rf_write(rt2x00dev, 3, rf->rf3);
509 if (rf->rf4)
510 rt2500pci_rf_write(rt2x00dev, 4, rf->rf4);
511 }
512
513 rt2500pci_rf_write(rt2x00dev, 1, rf->rf1);
514 rt2500pci_rf_write(rt2x00dev, 2, rf->rf2);
515 rt2500pci_rf_write(rt2x00dev, 3, rf->rf3);
516 if (rf->rf4)
517 rt2500pci_rf_write(rt2x00dev, 4, rf->rf4);
518
519 /*
520 * Channel 14 requires the Japan filter bit to be set.
521 */
522 r70 = 0x46;
523 rt2x00_set_field8(&r70, BBP_R70_JAPAN_FILTER, rf->channel == 14);
524 rt2500pci_bbp_write(rt2x00dev, 70, r70);
525
526 msleep(1);
527
528 /*
529 * Switch off tuning bits.
530 * For RT2523 devices we do not need to update the R1 register.
531 */
532 if (!rt2x00_rf(rt2x00dev, RF2523)) {
533 rt2x00_set_field32(&rf->rf1, RF1_TUNER, 0);
534 rt2500pci_rf_write(rt2x00dev, 1, rf->rf1);
535 }
536
537 rt2x00_set_field32(&rf->rf3, RF3_TUNER, 0);
538 rt2500pci_rf_write(rt2x00dev, 3, rf->rf3);
539
540 /*
541 * Clear false CRC during channel switch.
542 */
543 rt2x00pci_register_read(rt2x00dev, CNT0, &rf->rf1);
544 }
545
546 static void rt2500pci_config_txpower(struct rt2x00_dev *rt2x00dev,
547 const int txpower)
548 {
549 u32 rf3;
550
551 rt2x00_rf_read(rt2x00dev, 3, &rf3);
552 rt2x00_set_field32(&rf3, RF3_TXPOWER, TXPOWER_TO_DEV(txpower));
553 rt2500pci_rf_write(rt2x00dev, 3, rf3);
554 }
555
556 static void rt2500pci_config_retry_limit(struct rt2x00_dev *rt2x00dev,
557 struct rt2x00lib_conf *libconf)
558 {
559 u32 reg;
560
561 rt2x00pci_register_read(rt2x00dev, CSR11, &reg);
562 rt2x00_set_field32(&reg, CSR11_LONG_RETRY,
563 libconf->conf->long_frame_max_tx_count);
564 rt2x00_set_field32(&reg, CSR11_SHORT_RETRY,
565 libconf->conf->short_frame_max_tx_count);
566 rt2x00pci_register_write(rt2x00dev, CSR11, reg);
567 }
568
569 static void rt2500pci_config_ps(struct rt2x00_dev *rt2x00dev,
570 struct rt2x00lib_conf *libconf)
571 {
572 enum dev_state state =
573 (libconf->conf->flags & IEEE80211_CONF_PS) ?
574 STATE_SLEEP : STATE_AWAKE;
575 u32 reg;
576
577 if (state == STATE_SLEEP) {
578 rt2x00pci_register_read(rt2x00dev, CSR20, &reg);
579 rt2x00_set_field32(&reg, CSR20_DELAY_AFTER_TBCN,
580 (rt2x00dev->beacon_int - 20) * 16);
581 rt2x00_set_field32(&reg, CSR20_TBCN_BEFORE_WAKEUP,
582 libconf->conf->listen_interval - 1);
583
584 /* We must first disable autowake before it can be enabled */
585 rt2x00_set_field32(&reg, CSR20_AUTOWAKE, 0);
586 rt2x00pci_register_write(rt2x00dev, CSR20, reg);
587
588 rt2x00_set_field32(&reg, CSR20_AUTOWAKE, 1);
589 rt2x00pci_register_write(rt2x00dev, CSR20, reg);
590 } else {
591 rt2x00pci_register_read(rt2x00dev, CSR20, &reg);
592 rt2x00_set_field32(&reg, CSR20_AUTOWAKE, 0);
593 rt2x00pci_register_write(rt2x00dev, CSR20, reg);
594 }
595
596 rt2x00dev->ops->lib->set_device_state(rt2x00dev, state);
597 }
598
599 static void rt2500pci_config(struct rt2x00_dev *rt2x00dev,
600 struct rt2x00lib_conf *libconf,
601 const unsigned int flags)
602 {
603 if (flags & IEEE80211_CONF_CHANGE_CHANNEL)
604 rt2500pci_config_channel(rt2x00dev, &libconf->rf,
605 libconf->conf->power_level);
606 if ((flags & IEEE80211_CONF_CHANGE_POWER) &&
607 !(flags & IEEE80211_CONF_CHANGE_CHANNEL))
608 rt2500pci_config_txpower(rt2x00dev,
609 libconf->conf->power_level);
610 if (flags & IEEE80211_CONF_CHANGE_RETRY_LIMITS)
611 rt2500pci_config_retry_limit(rt2x00dev, libconf);
612 if (flags & IEEE80211_CONF_CHANGE_PS)
613 rt2500pci_config_ps(rt2x00dev, libconf);
614 }
615
616 /*
617 * Link tuning
618 */
619 static void rt2500pci_link_stats(struct rt2x00_dev *rt2x00dev,
620 struct link_qual *qual)
621 {
622 u32 reg;
623
624 /*
625 * Update FCS error count from register.
626 */
627 rt2x00pci_register_read(rt2x00dev, CNT0, &reg);
628 qual->rx_failed = rt2x00_get_field32(reg, CNT0_FCS_ERROR);
629
630 /*
631 * Update False CCA count from register.
632 */
633 rt2x00pci_register_read(rt2x00dev, CNT3, &reg);
634 qual->false_cca = rt2x00_get_field32(reg, CNT3_FALSE_CCA);
635 }
636
637 static inline void rt2500pci_set_vgc(struct rt2x00_dev *rt2x00dev,
638 struct link_qual *qual, u8 vgc_level)
639 {
640 if (qual->vgc_level_reg != vgc_level) {
641 rt2500pci_bbp_write(rt2x00dev, 17, vgc_level);
642 qual->vgc_level = vgc_level;
643 qual->vgc_level_reg = vgc_level;
644 }
645 }
646
647 static void rt2500pci_reset_tuner(struct rt2x00_dev *rt2x00dev,
648 struct link_qual *qual)
649 {
650 rt2500pci_set_vgc(rt2x00dev, qual, 0x48);
651 }
652
653 static void rt2500pci_link_tuner(struct rt2x00_dev *rt2x00dev,
654 struct link_qual *qual, const u32 count)
655 {
656 /*
657 * To prevent collisions with MAC ASIC on chipsets
658 * up to version C the link tuning should halt after 20
659 * seconds while being associated.
660 */
661 if (rt2x00_rev(rt2x00dev) < RT2560_VERSION_D &&
662 rt2x00dev->intf_associated && count > 20)
663 return;
664
665 /*
666 * Chipset versions C and lower should directly continue
667 * to the dynamic CCA tuning. Chipset version D and higher
668 * should go straight to dynamic CCA tuning when they
669 * are not associated.
670 */
671 if (rt2x00_rev(rt2x00dev) < RT2560_VERSION_D ||
672 !rt2x00dev->intf_associated)
673 goto dynamic_cca_tune;
674
675 /*
676 * A too low RSSI will cause too much false CCA which will
677 * then corrupt the R17 tuning. To remidy this the tuning should
678 * be stopped (While making sure the R17 value will not exceed limits)
679 */
680 if (qual->rssi < -80 && count > 20) {
681 if (qual->vgc_level_reg >= 0x41)
682 rt2500pci_set_vgc(rt2x00dev, qual, qual->vgc_level);
683 return;
684 }
685
686 /*
687 * Special big-R17 for short distance
688 */
689 if (qual->rssi >= -58) {
690 rt2500pci_set_vgc(rt2x00dev, qual, 0x50);
691 return;
692 }
693
694 /*
695 * Special mid-R17 for middle distance
696 */
697 if (qual->rssi >= -74) {
698 rt2500pci_set_vgc(rt2x00dev, qual, 0x41);
699 return;
700 }
701
702 /*
703 * Leave short or middle distance condition, restore r17
704 * to the dynamic tuning range.
705 */
706 if (qual->vgc_level_reg >= 0x41) {
707 rt2500pci_set_vgc(rt2x00dev, qual, qual->vgc_level);
708 return;
709 }
710
711 dynamic_cca_tune:
712
713 /*
714 * R17 is inside the dynamic tuning range,
715 * start tuning the link based on the false cca counter.
716 */
717 if (qual->false_cca > 512 && qual->vgc_level_reg < 0x40)
718 rt2500pci_set_vgc(rt2x00dev, qual, ++qual->vgc_level_reg);
719 else if (qual->false_cca < 100 && qual->vgc_level_reg > 0x32)
720 rt2500pci_set_vgc(rt2x00dev, qual, --qual->vgc_level_reg);
721 }
722
723 /*
724 * Queue handlers.
725 */
726 static void rt2500pci_start_queue(struct data_queue *queue)
727 {
728 struct rt2x00_dev *rt2x00dev = queue->rt2x00dev;
729 u32 reg;
730
731 switch (queue->qid) {
732 case QID_RX:
733 rt2x00pci_register_read(rt2x00dev, RXCSR0, &reg);
734 rt2x00_set_field32(&reg, RXCSR0_DISABLE_RX, 0);
735 rt2x00pci_register_write(rt2x00dev, RXCSR0, reg);
736 break;
737 case QID_BEACON:
738 /*
739 * Allow the tbtt tasklet to be scheduled.
740 */
741 tasklet_enable(&rt2x00dev->tbtt_tasklet);
742
743 rt2x00pci_register_read(rt2x00dev, CSR14, &reg);
744 rt2x00_set_field32(&reg, CSR14_TSF_COUNT, 1);
745 rt2x00_set_field32(&reg, CSR14_TBCN, 1);
746 rt2x00_set_field32(&reg, CSR14_BEACON_GEN, 1);
747 rt2x00pci_register_write(rt2x00dev, CSR14, reg);
748 break;
749 default:
750 break;
751 }
752 }
753
754 static void rt2500pci_kick_queue(struct data_queue *queue)
755 {
756 struct rt2x00_dev *rt2x00dev = queue->rt2x00dev;
757 u32 reg;
758
759 switch (queue->qid) {
760 case QID_AC_VO:
761 rt2x00pci_register_read(rt2x00dev, TXCSR0, &reg);
762 rt2x00_set_field32(&reg, TXCSR0_KICK_PRIO, 1);
763 rt2x00pci_register_write(rt2x00dev, TXCSR0, reg);
764 break;
765 case QID_AC_VI:
766 rt2x00pci_register_read(rt2x00dev, TXCSR0, &reg);
767 rt2x00_set_field32(&reg, TXCSR0_KICK_TX, 1);
768 rt2x00pci_register_write(rt2x00dev, TXCSR0, reg);
769 break;
770 case QID_ATIM:
771 rt2x00pci_register_read(rt2x00dev, TXCSR0, &reg);
772 rt2x00_set_field32(&reg, TXCSR0_KICK_ATIM, 1);
773 rt2x00pci_register_write(rt2x00dev, TXCSR0, reg);
774 break;
775 default:
776 break;
777 }
778 }
779
780 static void rt2500pci_stop_queue(struct data_queue *queue)
781 {
782 struct rt2x00_dev *rt2x00dev = queue->rt2x00dev;
783 u32 reg;
784
785 switch (queue->qid) {
786 case QID_AC_VO:
787 case QID_AC_VI:
788 case QID_ATIM:
789 rt2x00pci_register_read(rt2x00dev, TXCSR0, &reg);
790 rt2x00_set_field32(&reg, TXCSR0_ABORT, 1);
791 rt2x00pci_register_write(rt2x00dev, TXCSR0, reg);
792 break;
793 case QID_RX:
794 rt2x00pci_register_read(rt2x00dev, RXCSR0, &reg);
795 rt2x00_set_field32(&reg, RXCSR0_DISABLE_RX, 1);
796 rt2x00pci_register_write(rt2x00dev, RXCSR0, reg);
797 break;
798 case QID_BEACON:
799 rt2x00pci_register_read(rt2x00dev, CSR14, &reg);
800 rt2x00_set_field32(&reg, CSR14_TSF_COUNT, 0);
801 rt2x00_set_field32(&reg, CSR14_TBCN, 0);
802 rt2x00_set_field32(&reg, CSR14_BEACON_GEN, 0);
803 rt2x00pci_register_write(rt2x00dev, CSR14, reg);
804
805 /*
806 * Wait for possibly running tbtt tasklets.
807 */
808 tasklet_disable(&rt2x00dev->tbtt_tasklet);
809 break;
810 default:
811 break;
812 }
813 }
814
815 /*
816 * Initialization functions.
817 */
818 static bool rt2500pci_get_entry_state(struct queue_entry *entry)
819 {
820 struct queue_entry_priv_pci *entry_priv = entry->priv_data;
821 u32 word;
822
823 if (entry->queue->qid == QID_RX) {
824 rt2x00_desc_read(entry_priv->desc, 0, &word);
825
826 return rt2x00_get_field32(word, RXD_W0_OWNER_NIC);
827 } else {
828 rt2x00_desc_read(entry_priv->desc, 0, &word);
829
830 return (rt2x00_get_field32(word, TXD_W0_OWNER_NIC) ||
831 rt2x00_get_field32(word, TXD_W0_VALID));
832 }
833 }
834
835 static void rt2500pci_clear_entry(struct queue_entry *entry)
836 {
837 struct queue_entry_priv_pci *entry_priv = entry->priv_data;
838 struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
839 u32 word;
840
841 if (entry->queue->qid == QID_RX) {
842 rt2x00_desc_read(entry_priv->desc, 1, &word);
843 rt2x00_set_field32(&word, RXD_W1_BUFFER_ADDRESS, skbdesc->skb_dma);
844 rt2x00_desc_write(entry_priv->desc, 1, word);
845
846 rt2x00_desc_read(entry_priv->desc, 0, &word);
847 rt2x00_set_field32(&word, RXD_W0_OWNER_NIC, 1);
848 rt2x00_desc_write(entry_priv->desc, 0, word);
849 } else {
850 rt2x00_desc_read(entry_priv->desc, 0, &word);
851 rt2x00_set_field32(&word, TXD_W0_VALID, 0);
852 rt2x00_set_field32(&word, TXD_W0_OWNER_NIC, 0);
853 rt2x00_desc_write(entry_priv->desc, 0, word);
854 }
855 }
856
857 static int rt2500pci_init_queues(struct rt2x00_dev *rt2x00dev)
858 {
859 struct queue_entry_priv_pci *entry_priv;
860 u32 reg;
861
862 /*
863 * Initialize registers.
864 */
865 rt2x00pci_register_read(rt2x00dev, TXCSR2, &reg);
866 rt2x00_set_field32(&reg, TXCSR2_TXD_SIZE, rt2x00dev->tx[0].desc_size);
867 rt2x00_set_field32(&reg, TXCSR2_NUM_TXD, rt2x00dev->tx[1].limit);
868 rt2x00_set_field32(&reg, TXCSR2_NUM_ATIM, rt2x00dev->atim->limit);
869 rt2x00_set_field32(&reg, TXCSR2_NUM_PRIO, rt2x00dev->tx[0].limit);
870 rt2x00pci_register_write(rt2x00dev, TXCSR2, reg);
871
872 entry_priv = rt2x00dev->tx[1].entries[0].priv_data;
873 rt2x00pci_register_read(rt2x00dev, TXCSR3, &reg);
874 rt2x00_set_field32(&reg, TXCSR3_TX_RING_REGISTER,
875 entry_priv->desc_dma);
876 rt2x00pci_register_write(rt2x00dev, TXCSR3, reg);
877
878 entry_priv = rt2x00dev->tx[0].entries[0].priv_data;
879 rt2x00pci_register_read(rt2x00dev, TXCSR5, &reg);
880 rt2x00_set_field32(&reg, TXCSR5_PRIO_RING_REGISTER,
881 entry_priv->desc_dma);
882 rt2x00pci_register_write(rt2x00dev, TXCSR5, reg);
883
884 entry_priv = rt2x00dev->atim->entries[0].priv_data;
885 rt2x00pci_register_read(rt2x00dev, TXCSR4, &reg);
886 rt2x00_set_field32(&reg, TXCSR4_ATIM_RING_REGISTER,
887 entry_priv->desc_dma);
888 rt2x00pci_register_write(rt2x00dev, TXCSR4, reg);
889
890 entry_priv = rt2x00dev->bcn->entries[0].priv_data;
891 rt2x00pci_register_read(rt2x00dev, TXCSR6, &reg);
892 rt2x00_set_field32(&reg, TXCSR6_BEACON_RING_REGISTER,
893 entry_priv->desc_dma);
894 rt2x00pci_register_write(rt2x00dev, TXCSR6, reg);
895
896 rt2x00pci_register_read(rt2x00dev, RXCSR1, &reg);
897 rt2x00_set_field32(&reg, RXCSR1_RXD_SIZE, rt2x00dev->rx->desc_size);
898 rt2x00_set_field32(&reg, RXCSR1_NUM_RXD, rt2x00dev->rx->limit);
899 rt2x00pci_register_write(rt2x00dev, RXCSR1, reg);
900
901 entry_priv = rt2x00dev->rx->entries[0].priv_data;
902 rt2x00pci_register_read(rt2x00dev, RXCSR2, &reg);
903 rt2x00_set_field32(&reg, RXCSR2_RX_RING_REGISTER,
904 entry_priv->desc_dma);
905 rt2x00pci_register_write(rt2x00dev, RXCSR2, reg);
906
907 return 0;
908 }
909
910 static int rt2500pci_init_registers(struct rt2x00_dev *rt2x00dev)
911 {
912 u32 reg;
913
914 rt2x00pci_register_write(rt2x00dev, PSCSR0, 0x00020002);
915 rt2x00pci_register_write(rt2x00dev, PSCSR1, 0x00000002);
916 rt2x00pci_register_write(rt2x00dev, PSCSR2, 0x00020002);
917 rt2x00pci_register_write(rt2x00dev, PSCSR3, 0x00000002);
918
919 rt2x00pci_register_read(rt2x00dev, TIMECSR, &reg);
920 rt2x00_set_field32(&reg, TIMECSR_US_COUNT, 33);
921 rt2x00_set_field32(&reg, TIMECSR_US_64_COUNT, 63);
922 rt2x00_set_field32(&reg, TIMECSR_BEACON_EXPECT, 0);
923 rt2x00pci_register_write(rt2x00dev, TIMECSR, reg);
924
925 rt2x00pci_register_read(rt2x00dev, CSR9, &reg);
926 rt2x00_set_field32(&reg, CSR9_MAX_FRAME_UNIT,
927 rt2x00dev->rx->data_size / 128);
928 rt2x00pci_register_write(rt2x00dev, CSR9, reg);
929
930 /*
931 * Always use CWmin and CWmax set in descriptor.
932 */
933 rt2x00pci_register_read(rt2x00dev, CSR11, &reg);
934 rt2x00_set_field32(&reg, CSR11_CW_SELECT, 0);
935 rt2x00pci_register_write(rt2x00dev, CSR11, reg);
936
937 rt2x00pci_register_read(rt2x00dev, CSR14, &reg);
938 rt2x00_set_field32(&reg, CSR14_TSF_COUNT, 0);
939 rt2x00_set_field32(&reg, CSR14_TSF_SYNC, 0);
940 rt2x00_set_field32(&reg, CSR14_TBCN, 0);
941 rt2x00_set_field32(&reg, CSR14_TCFP, 0);
942 rt2x00_set_field32(&reg, CSR14_TATIMW, 0);
943 rt2x00_set_field32(&reg, CSR14_BEACON_GEN, 0);
944 rt2x00_set_field32(&reg, CSR14_CFP_COUNT_PRELOAD, 0);
945 rt2x00_set_field32(&reg, CSR14_TBCM_PRELOAD, 0);
946 rt2x00pci_register_write(rt2x00dev, CSR14, reg);
947
948 rt2x00pci_register_write(rt2x00dev, CNT3, 0);
949
950 rt2x00pci_register_read(rt2x00dev, TXCSR8, &reg);
951 rt2x00_set_field32(&reg, TXCSR8_BBP_ID0, 10);
952 rt2x00_set_field32(&reg, TXCSR8_BBP_ID0_VALID, 1);
953 rt2x00_set_field32(&reg, TXCSR8_BBP_ID1, 11);
954 rt2x00_set_field32(&reg, TXCSR8_BBP_ID1_VALID, 1);
955 rt2x00_set_field32(&reg, TXCSR8_BBP_ID2, 13);
956 rt2x00_set_field32(&reg, TXCSR8_BBP_ID2_VALID, 1);
957 rt2x00_set_field32(&reg, TXCSR8_BBP_ID3, 12);
958 rt2x00_set_field32(&reg, TXCSR8_BBP_ID3_VALID, 1);
959 rt2x00pci_register_write(rt2x00dev, TXCSR8, reg);
960
961 rt2x00pci_register_read(rt2x00dev, ARTCSR0, &reg);
962 rt2x00_set_field32(&reg, ARTCSR0_ACK_CTS_1MBS, 112);
963 rt2x00_set_field32(&reg, ARTCSR0_ACK_CTS_2MBS, 56);
964 rt2x00_set_field32(&reg, ARTCSR0_ACK_CTS_5_5MBS, 20);
965 rt2x00_set_field32(&reg, ARTCSR0_ACK_CTS_11MBS, 10);
966 rt2x00pci_register_write(rt2x00dev, ARTCSR0, reg);
967
968 rt2x00pci_register_read(rt2x00dev, ARTCSR1, &reg);
969 rt2x00_set_field32(&reg, ARTCSR1_ACK_CTS_6MBS, 45);
970 rt2x00_set_field32(&reg, ARTCSR1_ACK_CTS_9MBS, 37);
971 rt2x00_set_field32(&reg, ARTCSR1_ACK_CTS_12MBS, 33);
972 rt2x00_set_field32(&reg, ARTCSR1_ACK_CTS_18MBS, 29);
973 rt2x00pci_register_write(rt2x00dev, ARTCSR1, reg);
974
975 rt2x00pci_register_read(rt2x00dev, ARTCSR2, &reg);
976 rt2x00_set_field32(&reg, ARTCSR2_ACK_CTS_24MBS, 29);
977 rt2x00_set_field32(&reg, ARTCSR2_ACK_CTS_36MBS, 25);
978 rt2x00_set_field32(&reg, ARTCSR2_ACK_CTS_48MBS, 25);
979 rt2x00_set_field32(&reg, ARTCSR2_ACK_CTS_54MBS, 25);
980 rt2x00pci_register_write(rt2x00dev, ARTCSR2, reg);
981
982 rt2x00pci_register_read(rt2x00dev, RXCSR3, &reg);
983 rt2x00_set_field32(&reg, RXCSR3_BBP_ID0, 47); /* CCK Signal */
984 rt2x00_set_field32(&reg, RXCSR3_BBP_ID0_VALID, 1);
985 rt2x00_set_field32(&reg, RXCSR3_BBP_ID1, 51); /* Rssi */
986 rt2x00_set_field32(&reg, RXCSR3_BBP_ID1_VALID, 1);
987 rt2x00_set_field32(&reg, RXCSR3_BBP_ID2, 42); /* OFDM Rate */
988 rt2x00_set_field32(&reg, RXCSR3_BBP_ID2_VALID, 1);
989 rt2x00_set_field32(&reg, RXCSR3_BBP_ID3, 51); /* RSSI */
990 rt2x00_set_field32(&reg, RXCSR3_BBP_ID3_VALID, 1);
991 rt2x00pci_register_write(rt2x00dev, RXCSR3, reg);
992
993 rt2x00pci_register_read(rt2x00dev, PCICSR, &reg);
994 rt2x00_set_field32(&reg, PCICSR_BIG_ENDIAN, 0);
995 rt2x00_set_field32(&reg, PCICSR_RX_TRESHOLD, 0);
996 rt2x00_set_field32(&reg, PCICSR_TX_TRESHOLD, 3);
997 rt2x00_set_field32(&reg, PCICSR_BURST_LENTH, 1);
998 rt2x00_set_field32(&reg, PCICSR_ENABLE_CLK, 1);
999 rt2x00_set_field32(&reg, PCICSR_READ_MULTIPLE, 1);
1000 rt2x00_set_field32(&reg, PCICSR_WRITE_INVALID, 1);
1001 rt2x00pci_register_write(rt2x00dev, PCICSR, reg);
1002
1003 rt2x00pci_register_write(rt2x00dev, PWRCSR0, 0x3f3b3100);
1004
1005 rt2x00pci_register_write(rt2x00dev, GPIOCSR, 0x0000ff00);
1006 rt2x00pci_register_write(rt2x00dev, TESTCSR, 0x000000f0);
1007
1008 if (rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_AWAKE))
1009 return -EBUSY;
1010
1011 rt2x00pci_register_write(rt2x00dev, MACCSR0, 0x00213223);
1012 rt2x00pci_register_write(rt2x00dev, MACCSR1, 0x00235518);
1013
1014 rt2x00pci_register_read(rt2x00dev, MACCSR2, &reg);
1015 rt2x00_set_field32(&reg, MACCSR2_DELAY, 64);
1016 rt2x00pci_register_write(rt2x00dev, MACCSR2, reg);
1017
1018 rt2x00pci_register_read(rt2x00dev, RALINKCSR, &reg);
1019 rt2x00_set_field32(&reg, RALINKCSR_AR_BBP_DATA0, 17);
1020 rt2x00_set_field32(&reg, RALINKCSR_AR_BBP_ID0, 26);
1021 rt2x00_set_field32(&reg, RALINKCSR_AR_BBP_VALID0, 1);
1022 rt2x00_set_field32(&reg, RALINKCSR_AR_BBP_DATA1, 0);
1023 rt2x00_set_field32(&reg, RALINKCSR_AR_BBP_ID1, 26);
1024 rt2x00_set_field32(&reg, RALINKCSR_AR_BBP_VALID1, 1);
1025 rt2x00pci_register_write(rt2x00dev, RALINKCSR, reg);
1026
1027 rt2x00pci_register_write(rt2x00dev, BBPCSR1, 0x82188200);
1028
1029 rt2x00pci_register_write(rt2x00dev, TXACKCSR0, 0x00000020);
1030
1031 rt2x00pci_register_read(rt2x00dev, CSR1, &reg);
1032 rt2x00_set_field32(&reg, CSR1_SOFT_RESET, 1);
1033 rt2x00_set_field32(&reg, CSR1_BBP_RESET, 0);
1034 rt2x00_set_field32(&reg, CSR1_HOST_READY, 0);
1035 rt2x00pci_register_write(rt2x00dev, CSR1, reg);
1036
1037 rt2x00pci_register_read(rt2x00dev, CSR1, &reg);
1038 rt2x00_set_field32(&reg, CSR1_SOFT_RESET, 0);
1039 rt2x00_set_field32(&reg, CSR1_HOST_READY, 1);
1040 rt2x00pci_register_write(rt2x00dev, CSR1, reg);
1041
1042 /*
1043 * We must clear the FCS and FIFO error count.
1044 * These registers are cleared on read,
1045 * so we may pass a useless variable to store the value.
1046 */
1047 rt2x00pci_register_read(rt2x00dev, CNT0, &reg);
1048 rt2x00pci_register_read(rt2x00dev, CNT4, &reg);
1049
1050 return 0;
1051 }
1052
1053 static int rt2500pci_wait_bbp_ready(struct rt2x00_dev *rt2x00dev)
1054 {
1055 unsigned int i;
1056 u8 value;
1057
1058 for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
1059 rt2500pci_bbp_read(rt2x00dev, 0, &value);
1060 if ((value != 0xff) && (value != 0x00))
1061 return 0;
1062 udelay(REGISTER_BUSY_DELAY);
1063 }
1064
1065 ERROR(rt2x00dev, "BBP register access failed, aborting.\n");
1066 return -EACCES;
1067 }
1068
1069 static int rt2500pci_init_bbp(struct rt2x00_dev *rt2x00dev)
1070 {
1071 unsigned int i;
1072 u16 eeprom;
1073 u8 reg_id;
1074 u8 value;
1075
1076 if (unlikely(rt2500pci_wait_bbp_ready(rt2x00dev)))
1077 return -EACCES;
1078
1079 rt2500pci_bbp_write(rt2x00dev, 3, 0x02);
1080 rt2500pci_bbp_write(rt2x00dev, 4, 0x19);
1081 rt2500pci_bbp_write(rt2x00dev, 14, 0x1c);
1082 rt2500pci_bbp_write(rt2x00dev, 15, 0x30);
1083 rt2500pci_bbp_write(rt2x00dev, 16, 0xac);
1084 rt2500pci_bbp_write(rt2x00dev, 18, 0x18);
1085 rt2500pci_bbp_write(rt2x00dev, 19, 0xff);
1086 rt2500pci_bbp_write(rt2x00dev, 20, 0x1e);
1087 rt2500pci_bbp_write(rt2x00dev, 21, 0x08);
1088 rt2500pci_bbp_write(rt2x00dev, 22, 0x08);
1089 rt2500pci_bbp_write(rt2x00dev, 23, 0x08);
1090 rt2500pci_bbp_write(rt2x00dev, 24, 0x70);
1091 rt2500pci_bbp_write(rt2x00dev, 25, 0x40);
1092 rt2500pci_bbp_write(rt2x00dev, 26, 0x08);
1093 rt2500pci_bbp_write(rt2x00dev, 27, 0x23);
1094 rt2500pci_bbp_write(rt2x00dev, 30, 0x10);
1095 rt2500pci_bbp_write(rt2x00dev, 31, 0x2b);
1096 rt2500pci_bbp_write(rt2x00dev, 32, 0xb9);
1097 rt2500pci_bbp_write(rt2x00dev, 34, 0x12);
1098 rt2500pci_bbp_write(rt2x00dev, 35, 0x50);
1099 rt2500pci_bbp_write(rt2x00dev, 39, 0xc4);
1100 rt2500pci_bbp_write(rt2x00dev, 40, 0x02);
1101 rt2500pci_bbp_write(rt2x00dev, 41, 0x60);
1102 rt2500pci_bbp_write(rt2x00dev, 53, 0x10);
1103 rt2500pci_bbp_write(rt2x00dev, 54, 0x18);
1104 rt2500pci_bbp_write(rt2x00dev, 56, 0x08);
1105 rt2500pci_bbp_write(rt2x00dev, 57, 0x10);
1106 rt2500pci_bbp_write(rt2x00dev, 58, 0x08);
1107 rt2500pci_bbp_write(rt2x00dev, 61, 0x6d);
1108 rt2500pci_bbp_write(rt2x00dev, 62, 0x10);
1109
1110 for (i = 0; i < EEPROM_BBP_SIZE; i++) {
1111 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBP_START + i, &eeprom);
1112
1113 if (eeprom != 0xffff && eeprom != 0x0000) {
1114 reg_id = rt2x00_get_field16(eeprom, EEPROM_BBP_REG_ID);
1115 value = rt2x00_get_field16(eeprom, EEPROM_BBP_VALUE);
1116 rt2500pci_bbp_write(rt2x00dev, reg_id, value);
1117 }
1118 }
1119
1120 return 0;
1121 }
1122
1123 /*
1124 * Device state switch handlers.
1125 */
1126 static void rt2500pci_toggle_irq(struct rt2x00_dev *rt2x00dev,
1127 enum dev_state state)
1128 {
1129 int mask = (state == STATE_RADIO_IRQ_OFF);
1130 u32 reg;
1131 unsigned long flags;
1132
1133 /*
1134 * When interrupts are being enabled, the interrupt registers
1135 * should clear the register to assure a clean state.
1136 */
1137 if (state == STATE_RADIO_IRQ_ON) {
1138 rt2x00pci_register_read(rt2x00dev, CSR7, &reg);
1139 rt2x00pci_register_write(rt2x00dev, CSR7, reg);
1140
1141 /*
1142 * Enable tasklets.
1143 */
1144 tasklet_enable(&rt2x00dev->txstatus_tasklet);
1145 tasklet_enable(&rt2x00dev->rxdone_tasklet);
1146 }
1147
1148 /*
1149 * Only toggle the interrupts bits we are going to use.
1150 * Non-checked interrupt bits are disabled by default.
1151 */
1152 spin_lock_irqsave(&rt2x00dev->irqmask_lock, flags);
1153
1154 rt2x00pci_register_read(rt2x00dev, CSR8, &reg);
1155 rt2x00_set_field32(&reg, CSR8_TBCN_EXPIRE, mask);
1156 rt2x00_set_field32(&reg, CSR8_TXDONE_TXRING, mask);
1157 rt2x00_set_field32(&reg, CSR8_TXDONE_ATIMRING, mask);
1158 rt2x00_set_field32(&reg, CSR8_TXDONE_PRIORING, mask);
1159 rt2x00_set_field32(&reg, CSR8_RXDONE, mask);
1160 rt2x00pci_register_write(rt2x00dev, CSR8, reg);
1161
1162 spin_unlock_irqrestore(&rt2x00dev->irqmask_lock, flags);
1163
1164 if (state == STATE_RADIO_IRQ_OFF) {
1165 /*
1166 * Ensure that all tasklets are finished.
1167 */
1168 tasklet_disable(&rt2x00dev->txstatus_tasklet);
1169 tasklet_disable(&rt2x00dev->rxdone_tasklet);
1170 }
1171 }
1172
1173 static int rt2500pci_enable_radio(struct rt2x00_dev *rt2x00dev)
1174 {
1175 /*
1176 * Initialize all registers.
1177 */
1178 if (unlikely(rt2500pci_init_queues(rt2x00dev) ||
1179 rt2500pci_init_registers(rt2x00dev) ||
1180 rt2500pci_init_bbp(rt2x00dev)))
1181 return -EIO;
1182
1183 return 0;
1184 }
1185
1186 static void rt2500pci_disable_radio(struct rt2x00_dev *rt2x00dev)
1187 {
1188 /*
1189 * Disable power
1190 */
1191 rt2x00pci_register_write(rt2x00dev, PWRCSR0, 0);
1192 }
1193
1194 static int rt2500pci_set_state(struct rt2x00_dev *rt2x00dev,
1195 enum dev_state state)
1196 {
1197 u32 reg, reg2;
1198 unsigned int i;
1199 char put_to_sleep;
1200 char bbp_state;
1201 char rf_state;
1202
1203 put_to_sleep = (state != STATE_AWAKE);
1204
1205 rt2x00pci_register_read(rt2x00dev, PWRCSR1, &reg);
1206 rt2x00_set_field32(&reg, PWRCSR1_SET_STATE, 1);
1207 rt2x00_set_field32(&reg, PWRCSR1_BBP_DESIRE_STATE, state);
1208 rt2x00_set_field32(&reg, PWRCSR1_RF_DESIRE_STATE, state);
1209 rt2x00_set_field32(&reg, PWRCSR1_PUT_TO_SLEEP, put_to_sleep);
1210 rt2x00pci_register_write(rt2x00dev, PWRCSR1, reg);
1211
1212 /*
1213 * Device is not guaranteed to be in the requested state yet.
1214 * We must wait until the register indicates that the
1215 * device has entered the correct state.
1216 */
1217 for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
1218 rt2x00pci_register_read(rt2x00dev, PWRCSR1, &reg2);
1219 bbp_state = rt2x00_get_field32(reg2, PWRCSR1_BBP_CURR_STATE);
1220 rf_state = rt2x00_get_field32(reg2, PWRCSR1_RF_CURR_STATE);
1221 if (bbp_state == state && rf_state == state)
1222 return 0;
1223 rt2x00pci_register_write(rt2x00dev, PWRCSR1, reg);
1224 msleep(10);
1225 }
1226
1227 return -EBUSY;
1228 }
1229
1230 static int rt2500pci_set_device_state(struct rt2x00_dev *rt2x00dev,
1231 enum dev_state state)
1232 {
1233 int retval = 0;
1234
1235 switch (state) {
1236 case STATE_RADIO_ON:
1237 retval = rt2500pci_enable_radio(rt2x00dev);
1238 break;
1239 case STATE_RADIO_OFF:
1240 rt2500pci_disable_radio(rt2x00dev);
1241 break;
1242 case STATE_RADIO_IRQ_ON:
1243 case STATE_RADIO_IRQ_OFF:
1244 rt2500pci_toggle_irq(rt2x00dev, state);
1245 break;
1246 case STATE_DEEP_SLEEP:
1247 case STATE_SLEEP:
1248 case STATE_STANDBY:
1249 case STATE_AWAKE:
1250 retval = rt2500pci_set_state(rt2x00dev, state);
1251 break;
1252 default:
1253 retval = -ENOTSUPP;
1254 break;
1255 }
1256
1257 if (unlikely(retval))
1258 ERROR(rt2x00dev, "Device failed to enter state %d (%d).\n",
1259 state, retval);
1260
1261 return retval;
1262 }
1263
1264 /*
1265 * TX descriptor initialization
1266 */
1267 static void rt2500pci_write_tx_desc(struct queue_entry *entry,
1268 struct txentry_desc *txdesc)
1269 {
1270 struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
1271 struct queue_entry_priv_pci *entry_priv = entry->priv_data;
1272 __le32 *txd = entry_priv->desc;
1273 u32 word;
1274
1275 /*
1276 * Start writing the descriptor words.
1277 */
1278 rt2x00_desc_read(txd, 1, &word);
1279 rt2x00_set_field32(&word, TXD_W1_BUFFER_ADDRESS, skbdesc->skb_dma);
1280 rt2x00_desc_write(txd, 1, word);
1281
1282 rt2x00_desc_read(txd, 2, &word);
1283 rt2x00_set_field32(&word, TXD_W2_IV_OFFSET, IEEE80211_HEADER);
1284 rt2x00_set_field32(&word, TXD_W2_AIFS, entry->queue->aifs);
1285 rt2x00_set_field32(&word, TXD_W2_CWMIN, entry->queue->cw_min);
1286 rt2x00_set_field32(&word, TXD_W2_CWMAX, entry->queue->cw_max);
1287 rt2x00_desc_write(txd, 2, word);
1288
1289 rt2x00_desc_read(txd, 3, &word);
1290 rt2x00_set_field32(&word, TXD_W3_PLCP_SIGNAL, txdesc->u.plcp.signal);
1291 rt2x00_set_field32(&word, TXD_W3_PLCP_SERVICE, txdesc->u.plcp.service);
1292 rt2x00_set_field32(&word, TXD_W3_PLCP_LENGTH_LOW,
1293 txdesc->u.plcp.length_low);
1294 rt2x00_set_field32(&word, TXD_W3_PLCP_LENGTH_HIGH,
1295 txdesc->u.plcp.length_high);
1296 rt2x00_desc_write(txd, 3, word);
1297
1298 rt2x00_desc_read(txd, 10, &word);
1299 rt2x00_set_field32(&word, TXD_W10_RTS,
1300 test_bit(ENTRY_TXD_RTS_FRAME, &txdesc->flags));
1301 rt2x00_desc_write(txd, 10, word);
1302
1303 /*
1304 * Writing TXD word 0 must the last to prevent a race condition with
1305 * the device, whereby the device may take hold of the TXD before we
1306 * finished updating it.
1307 */
1308 rt2x00_desc_read(txd, 0, &word);
1309 rt2x00_set_field32(&word, TXD_W0_OWNER_NIC, 1);
1310 rt2x00_set_field32(&word, TXD_W0_VALID, 1);
1311 rt2x00_set_field32(&word, TXD_W0_MORE_FRAG,
1312 test_bit(ENTRY_TXD_MORE_FRAG, &txdesc->flags));
1313 rt2x00_set_field32(&word, TXD_W0_ACK,
1314 test_bit(ENTRY_TXD_ACK, &txdesc->flags));
1315 rt2x00_set_field32(&word, TXD_W0_TIMESTAMP,
1316 test_bit(ENTRY_TXD_REQ_TIMESTAMP, &txdesc->flags));
1317 rt2x00_set_field32(&word, TXD_W0_OFDM,
1318 (txdesc->rate_mode == RATE_MODE_OFDM));
1319 rt2x00_set_field32(&word, TXD_W0_CIPHER_OWNER, 1);
1320 rt2x00_set_field32(&word, TXD_W0_IFS, txdesc->u.plcp.ifs);
1321 rt2x00_set_field32(&word, TXD_W0_RETRY_MODE,
1322 test_bit(ENTRY_TXD_RETRY_MODE, &txdesc->flags));
1323 rt2x00_set_field32(&word, TXD_W0_DATABYTE_COUNT, txdesc->length);
1324 rt2x00_set_field32(&word, TXD_W0_CIPHER_ALG, CIPHER_NONE);
1325 rt2x00_desc_write(txd, 0, word);
1326
1327 /*
1328 * Register descriptor details in skb frame descriptor.
1329 */
1330 skbdesc->desc = txd;
1331 skbdesc->desc_len = TXD_DESC_SIZE;
1332 }
1333
1334 /*
1335 * TX data initialization
1336 */
1337 static void rt2500pci_write_beacon(struct queue_entry *entry,
1338 struct txentry_desc *txdesc)
1339 {
1340 struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
1341 u32 reg;
1342
1343 /*
1344 * Disable beaconing while we are reloading the beacon data,
1345 * otherwise we might be sending out invalid data.
1346 */
1347 rt2x00pci_register_read(rt2x00dev, CSR14, &reg);
1348 rt2x00_set_field32(&reg, CSR14_BEACON_GEN, 0);
1349 rt2x00pci_register_write(rt2x00dev, CSR14, reg);
1350
1351 rt2x00queue_map_txskb(entry);
1352
1353 /*
1354 * Write the TX descriptor for the beacon.
1355 */
1356 rt2500pci_write_tx_desc(entry, txdesc);
1357
1358 /*
1359 * Dump beacon to userspace through debugfs.
1360 */
1361 rt2x00debug_dump_frame(rt2x00dev, DUMP_FRAME_BEACON, entry->skb);
1362
1363 /*
1364 * Enable beaconing again.
1365 */
1366 rt2x00_set_field32(&reg, CSR14_BEACON_GEN, 1);
1367 rt2x00pci_register_write(rt2x00dev, CSR14, reg);
1368 }
1369
1370 /*
1371 * RX control handlers
1372 */
1373 static void rt2500pci_fill_rxdone(struct queue_entry *entry,
1374 struct rxdone_entry_desc *rxdesc)
1375 {
1376 struct queue_entry_priv_pci *entry_priv = entry->priv_data;
1377 u32 word0;
1378 u32 word2;
1379
1380 rt2x00_desc_read(entry_priv->desc, 0, &word0);
1381 rt2x00_desc_read(entry_priv->desc, 2, &word2);
1382
1383 if (rt2x00_get_field32(word0, RXD_W0_CRC_ERROR))
1384 rxdesc->flags |= RX_FLAG_FAILED_FCS_CRC;
1385 if (rt2x00_get_field32(word0, RXD_W0_PHYSICAL_ERROR))
1386 rxdesc->flags |= RX_FLAG_FAILED_PLCP_CRC;
1387
1388 /*
1389 * Obtain the status about this packet.
1390 * When frame was received with an OFDM bitrate,
1391 * the signal is the PLCP value. If it was received with
1392 * a CCK bitrate the signal is the rate in 100kbit/s.
1393 */
1394 rxdesc->signal = rt2x00_get_field32(word2, RXD_W2_SIGNAL);
1395 rxdesc->rssi = rt2x00_get_field32(word2, RXD_W2_RSSI) -
1396 entry->queue->rt2x00dev->rssi_offset;
1397 rxdesc->size = rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT);
1398
1399 if (rt2x00_get_field32(word0, RXD_W0_OFDM))
1400 rxdesc->dev_flags |= RXDONE_SIGNAL_PLCP;
1401 else
1402 rxdesc->dev_flags |= RXDONE_SIGNAL_BITRATE;
1403 if (rt2x00_get_field32(word0, RXD_W0_MY_BSS))
1404 rxdesc->dev_flags |= RXDONE_MY_BSS;
1405 }
1406
1407 /*
1408 * Interrupt functions.
1409 */
1410 static void rt2500pci_txdone(struct rt2x00_dev *rt2x00dev,
1411 const enum data_queue_qid queue_idx)
1412 {
1413 struct data_queue *queue = rt2x00queue_get_tx_queue(rt2x00dev, queue_idx);
1414 struct queue_entry_priv_pci *entry_priv;
1415 struct queue_entry *entry;
1416 struct txdone_entry_desc txdesc;
1417 u32 word;
1418
1419 while (!rt2x00queue_empty(queue)) {
1420 entry = rt2x00queue_get_entry(queue, Q_INDEX_DONE);
1421 entry_priv = entry->priv_data;
1422 rt2x00_desc_read(entry_priv->desc, 0, &word);
1423
1424 if (rt2x00_get_field32(word, TXD_W0_OWNER_NIC) ||
1425 !rt2x00_get_field32(word, TXD_W0_VALID))
1426 break;
1427
1428 /*
1429 * Obtain the status about this packet.
1430 */
1431 txdesc.flags = 0;
1432 switch (rt2x00_get_field32(word, TXD_W0_RESULT)) {
1433 case 0: /* Success */
1434 case 1: /* Success with retry */
1435 __set_bit(TXDONE_SUCCESS, &txdesc.flags);
1436 break;
1437 case 2: /* Failure, excessive retries */
1438 __set_bit(TXDONE_EXCESSIVE_RETRY, &txdesc.flags);
1439 /* Don't break, this is a failed frame! */
1440 default: /* Failure */
1441 __set_bit(TXDONE_FAILURE, &txdesc.flags);
1442 }
1443 txdesc.retry = rt2x00_get_field32(word, TXD_W0_RETRY_COUNT);
1444
1445 rt2x00lib_txdone(entry, &txdesc);
1446 }
1447 }
1448
1449 static inline void rt2500pci_enable_interrupt(struct rt2x00_dev *rt2x00dev,
1450 struct rt2x00_field32 irq_field)
1451 {
1452 u32 reg;
1453
1454 /*
1455 * Enable a single interrupt. The interrupt mask register
1456 * access needs locking.
1457 */
1458 spin_lock_irq(&rt2x00dev->irqmask_lock);
1459
1460 rt2x00pci_register_read(rt2x00dev, CSR8, &reg);
1461 rt2x00_set_field32(&reg, irq_field, 0);
1462 rt2x00pci_register_write(rt2x00dev, CSR8, reg);
1463
1464 spin_unlock_irq(&rt2x00dev->irqmask_lock);
1465 }
1466
1467 static void rt2500pci_txstatus_tasklet(unsigned long data)
1468 {
1469 struct rt2x00_dev *rt2x00dev = (struct rt2x00_dev *)data;
1470 u32 reg;
1471
1472 /*
1473 * Handle all tx queues.
1474 */
1475 rt2500pci_txdone(rt2x00dev, QID_ATIM);
1476 rt2500pci_txdone(rt2x00dev, QID_AC_VO);
1477 rt2500pci_txdone(rt2x00dev, QID_AC_VI);
1478
1479 /*
1480 * Enable all TXDONE interrupts again.
1481 */
1482 spin_lock_irq(&rt2x00dev->irqmask_lock);
1483
1484 rt2x00pci_register_read(rt2x00dev, CSR8, &reg);
1485 rt2x00_set_field32(&reg, CSR8_TXDONE_TXRING, 0);
1486 rt2x00_set_field32(&reg, CSR8_TXDONE_ATIMRING, 0);
1487 rt2x00_set_field32(&reg, CSR8_TXDONE_PRIORING, 0);
1488 rt2x00pci_register_write(rt2x00dev, CSR8, reg);
1489
1490 spin_unlock_irq(&rt2x00dev->irqmask_lock);
1491 }
1492
1493 static void rt2500pci_tbtt_tasklet(unsigned long data)
1494 {
1495 struct rt2x00_dev *rt2x00dev = (struct rt2x00_dev *)data;
1496 rt2x00lib_beacondone(rt2x00dev);
1497 rt2500pci_enable_interrupt(rt2x00dev, CSR8_TBCN_EXPIRE);
1498 }
1499
1500 static void rt2500pci_rxdone_tasklet(unsigned long data)
1501 {
1502 struct rt2x00_dev *rt2x00dev = (struct rt2x00_dev *)data;
1503 if (rt2x00pci_rxdone(rt2x00dev))
1504 tasklet_schedule(&rt2x00dev->rxdone_tasklet);
1505 else
1506 rt2500pci_enable_interrupt(rt2x00dev, CSR8_RXDONE);
1507 }
1508
1509 static irqreturn_t rt2500pci_interrupt(int irq, void *dev_instance)
1510 {
1511 struct rt2x00_dev *rt2x00dev = dev_instance;
1512 u32 reg, mask;
1513
1514 /*
1515 * Get the interrupt sources & saved to local variable.
1516 * Write register value back to clear pending interrupts.
1517 */
1518 rt2x00pci_register_read(rt2x00dev, CSR7, &reg);
1519 rt2x00pci_register_write(rt2x00dev, CSR7, reg);
1520
1521 if (!reg)
1522 return IRQ_NONE;
1523
1524 if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
1525 return IRQ_HANDLED;
1526
1527 mask = reg;
1528
1529 /*
1530 * Schedule tasklets for interrupt handling.
1531 */
1532 if (rt2x00_get_field32(reg, CSR7_TBCN_EXPIRE))
1533 tasklet_hi_schedule(&rt2x00dev->tbtt_tasklet);
1534
1535 if (rt2x00_get_field32(reg, CSR7_RXDONE))
1536 tasklet_schedule(&rt2x00dev->rxdone_tasklet);
1537
1538 if (rt2x00_get_field32(reg, CSR7_TXDONE_ATIMRING) ||
1539 rt2x00_get_field32(reg, CSR7_TXDONE_PRIORING) ||
1540 rt2x00_get_field32(reg, CSR7_TXDONE_TXRING)) {
1541 tasklet_schedule(&rt2x00dev->txstatus_tasklet);
1542 /*
1543 * Mask out all txdone interrupts.
1544 */
1545 rt2x00_set_field32(&mask, CSR8_TXDONE_TXRING, 1);
1546 rt2x00_set_field32(&mask, CSR8_TXDONE_ATIMRING, 1);
1547 rt2x00_set_field32(&mask, CSR8_TXDONE_PRIORING, 1);
1548 }
1549
1550 /*
1551 * Disable all interrupts for which a tasklet was scheduled right now,
1552 * the tasklet will reenable the appropriate interrupts.
1553 */
1554 spin_lock(&rt2x00dev->irqmask_lock);
1555
1556 rt2x00pci_register_read(rt2x00dev, CSR8, &reg);
1557 reg |= mask;
1558 rt2x00pci_register_write(rt2x00dev, CSR8, reg);
1559
1560 spin_unlock(&rt2x00dev->irqmask_lock);
1561
1562 return IRQ_HANDLED;
1563 }
1564
1565 /*
1566 * Device probe functions.
1567 */
1568 static int rt2500pci_validate_eeprom(struct rt2x00_dev *rt2x00dev)
1569 {
1570 struct eeprom_93cx6 eeprom;
1571 u32 reg;
1572 u16 word;
1573 u8 *mac;
1574
1575 rt2x00pci_register_read(rt2x00dev, CSR21, &reg);
1576
1577 eeprom.data = rt2x00dev;
1578 eeprom.register_read = rt2500pci_eepromregister_read;
1579 eeprom.register_write = rt2500pci_eepromregister_write;
1580 eeprom.width = rt2x00_get_field32(reg, CSR21_TYPE_93C46) ?
1581 PCI_EEPROM_WIDTH_93C46 : PCI_EEPROM_WIDTH_93C66;
1582 eeprom.reg_data_in = 0;
1583 eeprom.reg_data_out = 0;
1584 eeprom.reg_data_clock = 0;
1585 eeprom.reg_chip_select = 0;
1586
1587 eeprom_93cx6_multiread(&eeprom, EEPROM_BASE, rt2x00dev->eeprom,
1588 EEPROM_SIZE / sizeof(u16));
1589
1590 /*
1591 * Start validation of the data that has been read.
1592 */
1593 mac = rt2x00_eeprom_addr(rt2x00dev, EEPROM_MAC_ADDR_0);
1594 if (!is_valid_ether_addr(mac)) {
1595 random_ether_addr(mac);
1596 EEPROM(rt2x00dev, "MAC: %pM\n", mac);
1597 }
1598
1599 rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &word);
1600 if (word == 0xffff) {
1601 rt2x00_set_field16(&word, EEPROM_ANTENNA_NUM, 2);
1602 rt2x00_set_field16(&word, EEPROM_ANTENNA_TX_DEFAULT,
1603 ANTENNA_SW_DIVERSITY);
1604 rt2x00_set_field16(&word, EEPROM_ANTENNA_RX_DEFAULT,
1605 ANTENNA_SW_DIVERSITY);
1606 rt2x00_set_field16(&word, EEPROM_ANTENNA_LED_MODE,
1607 LED_MODE_DEFAULT);
1608 rt2x00_set_field16(&word, EEPROM_ANTENNA_DYN_TXAGC, 0);
1609 rt2x00_set_field16(&word, EEPROM_ANTENNA_HARDWARE_RADIO, 0);
1610 rt2x00_set_field16(&word, EEPROM_ANTENNA_RF_TYPE, RF2522);
1611 rt2x00_eeprom_write(rt2x00dev, EEPROM_ANTENNA, word);
1612 EEPROM(rt2x00dev, "Antenna: 0x%04x\n", word);
1613 }
1614
1615 rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &word);
1616 if (word == 0xffff) {
1617 rt2x00_set_field16(&word, EEPROM_NIC_CARDBUS_ACCEL, 0);
1618 rt2x00_set_field16(&word, EEPROM_NIC_DYN_BBP_TUNE, 0);
1619 rt2x00_set_field16(&word, EEPROM_NIC_CCK_TX_POWER, 0);
1620 rt2x00_eeprom_write(rt2x00dev, EEPROM_NIC, word);
1621 EEPROM(rt2x00dev, "NIC: 0x%04x\n", word);
1622 }
1623
1624 rt2x00_eeprom_read(rt2x00dev, EEPROM_CALIBRATE_OFFSET, &word);
1625 if (word == 0xffff) {
1626 rt2x00_set_field16(&word, EEPROM_CALIBRATE_OFFSET_RSSI,
1627 DEFAULT_RSSI_OFFSET);
1628 rt2x00_eeprom_write(rt2x00dev, EEPROM_CALIBRATE_OFFSET, word);
1629 EEPROM(rt2x00dev, "Calibrate offset: 0x%04x\n", word);
1630 }
1631
1632 return 0;
1633 }
1634
1635 static int rt2500pci_init_eeprom(struct rt2x00_dev *rt2x00dev)
1636 {
1637 u32 reg;
1638 u16 value;
1639 u16 eeprom;
1640
1641 /*
1642 * Read EEPROM word for configuration.
1643 */
1644 rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &eeprom);
1645
1646 /*
1647 * Identify RF chipset.
1648 */
1649 value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RF_TYPE);
1650 rt2x00pci_register_read(rt2x00dev, CSR0, &reg);
1651 rt2x00_set_chip(rt2x00dev, RT2560, value,
1652 rt2x00_get_field32(reg, CSR0_REVISION));
1653
1654 if (!rt2x00_rf(rt2x00dev, RF2522) &&
1655 !rt2x00_rf(rt2x00dev, RF2523) &&
1656 !rt2x00_rf(rt2x00dev, RF2524) &&
1657 !rt2x00_rf(rt2x00dev, RF2525) &&
1658 !rt2x00_rf(rt2x00dev, RF2525E) &&
1659 !rt2x00_rf(rt2x00dev, RF5222)) {
1660 ERROR(rt2x00dev, "Invalid RF chipset detected.\n");
1661 return -ENODEV;
1662 }
1663
1664 /*
1665 * Identify default antenna configuration.
1666 */
1667 rt2x00dev->default_ant.tx =
1668 rt2x00_get_field16(eeprom, EEPROM_ANTENNA_TX_DEFAULT);
1669 rt2x00dev->default_ant.rx =
1670 rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RX_DEFAULT);
1671
1672 /*
1673 * Store led mode, for correct led behaviour.
1674 */
1675 #ifdef CONFIG_RT2X00_LIB_LEDS
1676 value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_LED_MODE);
1677
1678 rt2500pci_init_led(rt2x00dev, &rt2x00dev->led_radio, LED_TYPE_RADIO);
1679 if (value == LED_MODE_TXRX_ACTIVITY ||
1680 value == LED_MODE_DEFAULT ||
1681 value == LED_MODE_ASUS)
1682 rt2500pci_init_led(rt2x00dev, &rt2x00dev->led_qual,
1683 LED_TYPE_ACTIVITY);
1684 #endif /* CONFIG_RT2X00_LIB_LEDS */
1685
1686 /*
1687 * Detect if this device has an hardware controlled radio.
1688 */
1689 if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_HARDWARE_RADIO))
1690 __set_bit(CAPABILITY_HW_BUTTON, &rt2x00dev->cap_flags);
1691
1692 /*
1693 * Check if the BBP tuning should be enabled.
1694 */
1695 rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &eeprom);
1696 if (!rt2x00_get_field16(eeprom, EEPROM_NIC_DYN_BBP_TUNE))
1697 __set_bit(CAPABILITY_LINK_TUNING, &rt2x00dev->cap_flags);
1698
1699 /*
1700 * Read the RSSI <-> dBm offset information.
1701 */
1702 rt2x00_eeprom_read(rt2x00dev, EEPROM_CALIBRATE_OFFSET, &eeprom);
1703 rt2x00dev->rssi_offset =
1704 rt2x00_get_field16(eeprom, EEPROM_CALIBRATE_OFFSET_RSSI);
1705
1706 return 0;
1707 }
1708
1709 /*
1710 * RF value list for RF2522
1711 * Supports: 2.4 GHz
1712 */
1713 static const struct rf_channel rf_vals_bg_2522[] = {
1714 { 1, 0x00002050, 0x000c1fda, 0x00000101, 0 },
1715 { 2, 0x00002050, 0x000c1fee, 0x00000101, 0 },
1716 { 3, 0x00002050, 0x000c2002, 0x00000101, 0 },
1717 { 4, 0x00002050, 0x000c2016, 0x00000101, 0 },
1718 { 5, 0x00002050, 0x000c202a, 0x00000101, 0 },
1719 { 6, 0x00002050, 0x000c203e, 0x00000101, 0 },
1720 { 7, 0x00002050, 0x000c2052, 0x00000101, 0 },
1721 { 8, 0x00002050, 0x000c2066, 0x00000101, 0 },
1722 { 9, 0x00002050, 0x000c207a, 0x00000101, 0 },
1723 { 10, 0x00002050, 0x000c208e, 0x00000101, 0 },
1724 { 11, 0x00002050, 0x000c20a2, 0x00000101, 0 },
1725 { 12, 0x00002050, 0x000c20b6, 0x00000101, 0 },
1726 { 13, 0x00002050, 0x000c20ca, 0x00000101, 0 },
1727 { 14, 0x00002050, 0x000c20fa, 0x00000101, 0 },
1728 };
1729
1730 /*
1731 * RF value list for RF2523
1732 * Supports: 2.4 GHz
1733 */
1734 static const struct rf_channel rf_vals_bg_2523[] = {
1735 { 1, 0x00022010, 0x00000c9e, 0x000e0111, 0x00000a1b },
1736 { 2, 0x00022010, 0x00000ca2, 0x000e0111, 0x00000a1b },
1737 { 3, 0x00022010, 0x00000ca6, 0x000e0111, 0x00000a1b },
1738 { 4, 0x00022010, 0x00000caa, 0x000e0111, 0x00000a1b },
1739 { 5, 0x00022010, 0x00000cae, 0x000e0111, 0x00000a1b },
1740 { 6, 0x00022010, 0x00000cb2, 0x000e0111, 0x00000a1b },
1741 { 7, 0x00022010, 0x00000cb6, 0x000e0111, 0x00000a1b },
1742 { 8, 0x00022010, 0x00000cba, 0x000e0111, 0x00000a1b },
1743 { 9, 0x00022010, 0x00000cbe, 0x000e0111, 0x00000a1b },
1744 { 10, 0x00022010, 0x00000d02, 0x000e0111, 0x00000a1b },
1745 { 11, 0x00022010, 0x00000d06, 0x000e0111, 0x00000a1b },
1746 { 12, 0x00022010, 0x00000d0a, 0x000e0111, 0x00000a1b },
1747 { 13, 0x00022010, 0x00000d0e, 0x000e0111, 0x00000a1b },
1748 { 14, 0x00022010, 0x00000d1a, 0x000e0111, 0x00000a03 },
1749 };
1750
1751 /*
1752 * RF value list for RF2524
1753 * Supports: 2.4 GHz
1754 */
1755 static const struct rf_channel rf_vals_bg_2524[] = {
1756 { 1, 0x00032020, 0x00000c9e, 0x00000101, 0x00000a1b },
1757 { 2, 0x00032020, 0x00000ca2, 0x00000101, 0x00000a1b },
1758 { 3, 0x00032020, 0x00000ca6, 0x00000101, 0x00000a1b },
1759 { 4, 0x00032020, 0x00000caa, 0x00000101, 0x00000a1b },
1760 { 5, 0x00032020, 0x00000cae, 0x00000101, 0x00000a1b },
1761 { 6, 0x00032020, 0x00000cb2, 0x00000101, 0x00000a1b },
1762 { 7, 0x00032020, 0x00000cb6, 0x00000101, 0x00000a1b },
1763 { 8, 0x00032020, 0x00000cba, 0x00000101, 0x00000a1b },
1764 { 9, 0x00032020, 0x00000cbe, 0x00000101, 0x00000a1b },
1765 { 10, 0x00032020, 0x00000d02, 0x00000101, 0x00000a1b },
1766 { 11, 0x00032020, 0x00000d06, 0x00000101, 0x00000a1b },
1767 { 12, 0x00032020, 0x00000d0a, 0x00000101, 0x00000a1b },
1768 { 13, 0x00032020, 0x00000d0e, 0x00000101, 0x00000a1b },
1769 { 14, 0x00032020, 0x00000d1a, 0x00000101, 0x00000a03 },
1770 };
1771
1772 /*
1773 * RF value list for RF2525
1774 * Supports: 2.4 GHz
1775 */
1776 static const struct rf_channel rf_vals_bg_2525[] = {
1777 { 1, 0x00022020, 0x00080c9e, 0x00060111, 0x00000a1b },
1778 { 2, 0x00022020, 0x00080ca2, 0x00060111, 0x00000a1b },
1779 { 3, 0x00022020, 0x00080ca6, 0x00060111, 0x00000a1b },
1780 { 4, 0x00022020, 0x00080caa, 0x00060111, 0x00000a1b },
1781 { 5, 0x00022020, 0x00080cae, 0x00060111, 0x00000a1b },
1782 { 6, 0x00022020, 0x00080cb2, 0x00060111, 0x00000a1b },
1783 { 7, 0x00022020, 0x00080cb6, 0x00060111, 0x00000a1b },
1784 { 8, 0x00022020, 0x00080cba, 0x00060111, 0x00000a1b },
1785 { 9, 0x00022020, 0x00080cbe, 0x00060111, 0x00000a1b },
1786 { 10, 0x00022020, 0x00080d02, 0x00060111, 0x00000a1b },
1787 { 11, 0x00022020, 0x00080d06, 0x00060111, 0x00000a1b },
1788 { 12, 0x00022020, 0x00080d0a, 0x00060111, 0x00000a1b },
1789 { 13, 0x00022020, 0x00080d0e, 0x00060111, 0x00000a1b },
1790 { 14, 0x00022020, 0x00080d1a, 0x00060111, 0x00000a03 },
1791 };
1792
1793 /*
1794 * RF value list for RF2525e
1795 * Supports: 2.4 GHz
1796 */
1797 static const struct rf_channel rf_vals_bg_2525e[] = {
1798 { 1, 0x00022020, 0x00081136, 0x00060111, 0x00000a0b },
1799 { 2, 0x00022020, 0x0008113a, 0x00060111, 0x00000a0b },
1800 { 3, 0x00022020, 0x0008113e, 0x00060111, 0x00000a0b },
1801 { 4, 0x00022020, 0x00081182, 0x00060111, 0x00000a0b },
1802 { 5, 0x00022020, 0x00081186, 0x00060111, 0x00000a0b },
1803 { 6, 0x00022020, 0x0008118a, 0x00060111, 0x00000a0b },
1804 { 7, 0x00022020, 0x0008118e, 0x00060111, 0x00000a0b },
1805 { 8, 0x00022020, 0x00081192, 0x00060111, 0x00000a0b },
1806 { 9, 0x00022020, 0x00081196, 0x00060111, 0x00000a0b },
1807 { 10, 0x00022020, 0x0008119a, 0x00060111, 0x00000a0b },
1808 { 11, 0x00022020, 0x0008119e, 0x00060111, 0x00000a0b },
1809 { 12, 0x00022020, 0x000811a2, 0x00060111, 0x00000a0b },
1810 { 13, 0x00022020, 0x000811a6, 0x00060111, 0x00000a0b },
1811 { 14, 0x00022020, 0x000811ae, 0x00060111, 0x00000a1b },
1812 };
1813
1814 /*
1815 * RF value list for RF5222
1816 * Supports: 2.4 GHz & 5.2 GHz
1817 */
1818 static const struct rf_channel rf_vals_5222[] = {
1819 { 1, 0x00022020, 0x00001136, 0x00000101, 0x00000a0b },
1820 { 2, 0x00022020, 0x0000113a, 0x00000101, 0x00000a0b },
1821 { 3, 0x00022020, 0x0000113e, 0x00000101, 0x00000a0b },
1822 { 4, 0x00022020, 0x00001182, 0x00000101, 0x00000a0b },
1823 { 5, 0x00022020, 0x00001186, 0x00000101, 0x00000a0b },
1824 { 6, 0x00022020, 0x0000118a, 0x00000101, 0x00000a0b },
1825 { 7, 0x00022020, 0x0000118e, 0x00000101, 0x00000a0b },
1826 { 8, 0x00022020, 0x00001192, 0x00000101, 0x00000a0b },
1827 { 9, 0x00022020, 0x00001196, 0x00000101, 0x00000a0b },
1828 { 10, 0x00022020, 0x0000119a, 0x00000101, 0x00000a0b },
1829 { 11, 0x00022020, 0x0000119e, 0x00000101, 0x00000a0b },
1830 { 12, 0x00022020, 0x000011a2, 0x00000101, 0x00000a0b },
1831 { 13, 0x00022020, 0x000011a6, 0x00000101, 0x00000a0b },
1832 { 14, 0x00022020, 0x000011ae, 0x00000101, 0x00000a1b },
1833
1834 /* 802.11 UNI / HyperLan 2 */
1835 { 36, 0x00022010, 0x00018896, 0x00000101, 0x00000a1f },
1836 { 40, 0x00022010, 0x0001889a, 0x00000101, 0x00000a1f },
1837 { 44, 0x00022010, 0x0001889e, 0x00000101, 0x00000a1f },
1838 { 48, 0x00022010, 0x000188a2, 0x00000101, 0x00000a1f },
1839 { 52, 0x00022010, 0x000188a6, 0x00000101, 0x00000a1f },
1840 { 66, 0x00022010, 0x000188aa, 0x00000101, 0x00000a1f },
1841 { 60, 0x00022010, 0x000188ae, 0x00000101, 0x00000a1f },
1842 { 64, 0x00022010, 0x000188b2, 0x00000101, 0x00000a1f },
1843
1844 /* 802.11 HyperLan 2 */
1845 { 100, 0x00022010, 0x00008802, 0x00000101, 0x00000a0f },
1846 { 104, 0x00022010, 0x00008806, 0x00000101, 0x00000a0f },
1847 { 108, 0x00022010, 0x0000880a, 0x00000101, 0x00000a0f },
1848 { 112, 0x00022010, 0x0000880e, 0x00000101, 0x00000a0f },
1849 { 116, 0x00022010, 0x00008812, 0x00000101, 0x00000a0f },
1850 { 120, 0x00022010, 0x00008816, 0x00000101, 0x00000a0f },
1851 { 124, 0x00022010, 0x0000881a, 0x00000101, 0x00000a0f },
1852 { 128, 0x00022010, 0x0000881e, 0x00000101, 0x00000a0f },
1853 { 132, 0x00022010, 0x00008822, 0x00000101, 0x00000a0f },
1854 { 136, 0x00022010, 0x00008826, 0x00000101, 0x00000a0f },
1855
1856 /* 802.11 UNII */
1857 { 140, 0x00022010, 0x0000882a, 0x00000101, 0x00000a0f },
1858 { 149, 0x00022020, 0x000090a6, 0x00000101, 0x00000a07 },
1859 { 153, 0x00022020, 0x000090ae, 0x00000101, 0x00000a07 },
1860 { 157, 0x00022020, 0x000090b6, 0x00000101, 0x00000a07 },
1861 { 161, 0x00022020, 0x000090be, 0x00000101, 0x00000a07 },
1862 };
1863
1864 static int rt2500pci_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
1865 {
1866 struct hw_mode_spec *spec = &rt2x00dev->spec;
1867 struct channel_info *info;
1868 char *tx_power;
1869 unsigned int i;
1870
1871 /*
1872 * Initialize all hw fields.
1873 */
1874 rt2x00dev->hw->flags = IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
1875 IEEE80211_HW_SIGNAL_DBM |
1876 IEEE80211_HW_SUPPORTS_PS |
1877 IEEE80211_HW_PS_NULLFUNC_STACK;
1878
1879 SET_IEEE80211_DEV(rt2x00dev->hw, rt2x00dev->dev);
1880 SET_IEEE80211_PERM_ADDR(rt2x00dev->hw,
1881 rt2x00_eeprom_addr(rt2x00dev,
1882 EEPROM_MAC_ADDR_0));
1883
1884 /*
1885 * Initialize hw_mode information.
1886 */
1887 spec->supported_bands = SUPPORT_BAND_2GHZ;
1888 spec->supported_rates = SUPPORT_RATE_CCK | SUPPORT_RATE_OFDM;
1889
1890 if (rt2x00_rf(rt2x00dev, RF2522)) {
1891 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2522);
1892 spec->channels = rf_vals_bg_2522;
1893 } else if (rt2x00_rf(rt2x00dev, RF2523)) {
1894 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2523);
1895 spec->channels = rf_vals_bg_2523;
1896 } else if (rt2x00_rf(rt2x00dev, RF2524)) {
1897 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2524);
1898 spec->channels = rf_vals_bg_2524;
1899 } else if (rt2x00_rf(rt2x00dev, RF2525)) {
1900 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2525);
1901 spec->channels = rf_vals_bg_2525;
1902 } else if (rt2x00_rf(rt2x00dev, RF2525E)) {
1903 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2525e);
1904 spec->channels = rf_vals_bg_2525e;
1905 } else if (rt2x00_rf(rt2x00dev, RF5222)) {
1906 spec->supported_bands |= SUPPORT_BAND_5GHZ;
1907 spec->num_channels = ARRAY_SIZE(rf_vals_5222);
1908 spec->channels = rf_vals_5222;
1909 }
1910
1911 /*
1912 * Create channel information array
1913 */
1914 info = kcalloc(spec->num_channels, sizeof(*info), GFP_KERNEL);
1915 if (!info)
1916 return -ENOMEM;
1917
1918 spec->channels_info = info;
1919
1920 tx_power = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_START);
1921 for (i = 0; i < 14; i++) {
1922 info[i].max_power = MAX_TXPOWER;
1923 info[i].default_power1 = TXPOWER_FROM_DEV(tx_power[i]);
1924 }
1925
1926 if (spec->num_channels > 14) {
1927 for (i = 14; i < spec->num_channels; i++) {
1928 info[i].max_power = MAX_TXPOWER;
1929 info[i].default_power1 = DEFAULT_TXPOWER;
1930 }
1931 }
1932
1933 return 0;
1934 }
1935
1936 static int rt2500pci_probe_hw(struct rt2x00_dev *rt2x00dev)
1937 {
1938 int retval;
1939
1940 /*
1941 * Allocate eeprom data.
1942 */
1943 retval = rt2500pci_validate_eeprom(rt2x00dev);
1944 if (retval)
1945 return retval;
1946
1947 retval = rt2500pci_init_eeprom(rt2x00dev);
1948 if (retval)
1949 return retval;
1950
1951 /*
1952 * Initialize hw specifications.
1953 */
1954 retval = rt2500pci_probe_hw_mode(rt2x00dev);
1955 if (retval)
1956 return retval;
1957
1958 /*
1959 * This device requires the atim queue and DMA-mapped skbs.
1960 */
1961 __set_bit(REQUIRE_ATIM_QUEUE, &rt2x00dev->cap_flags);
1962 __set_bit(REQUIRE_DMA, &rt2x00dev->cap_flags);
1963 __set_bit(REQUIRE_SW_SEQNO, &rt2x00dev->cap_flags);
1964
1965 /*
1966 * Set the rssi offset.
1967 */
1968 rt2x00dev->rssi_offset = DEFAULT_RSSI_OFFSET;
1969
1970 return 0;
1971 }
1972
1973 /*
1974 * IEEE80211 stack callback functions.
1975 */
1976 static u64 rt2500pci_get_tsf(struct ieee80211_hw *hw)
1977 {
1978 struct rt2x00_dev *rt2x00dev = hw->priv;
1979 u64 tsf;
1980 u32 reg;
1981
1982 rt2x00pci_register_read(rt2x00dev, CSR17, &reg);
1983 tsf = (u64) rt2x00_get_field32(reg, CSR17_HIGH_TSFTIMER) << 32;
1984 rt2x00pci_register_read(rt2x00dev, CSR16, &reg);
1985 tsf |= rt2x00_get_field32(reg, CSR16_LOW_TSFTIMER);
1986
1987 return tsf;
1988 }
1989
1990 static int rt2500pci_tx_last_beacon(struct ieee80211_hw *hw)
1991 {
1992 struct rt2x00_dev *rt2x00dev = hw->priv;
1993 u32 reg;
1994
1995 rt2x00pci_register_read(rt2x00dev, CSR15, &reg);
1996 return rt2x00_get_field32(reg, CSR15_BEACON_SENT);
1997 }
1998
1999 static const struct ieee80211_ops rt2500pci_mac80211_ops = {
2000 .tx = rt2x00mac_tx,
2001 .start = rt2x00mac_start,
2002 .stop = rt2x00mac_stop,
2003 .add_interface = rt2x00mac_add_interface,
2004 .remove_interface = rt2x00mac_remove_interface,
2005 .config = rt2x00mac_config,
2006 .configure_filter = rt2x00mac_configure_filter,
2007 .sw_scan_start = rt2x00mac_sw_scan_start,
2008 .sw_scan_complete = rt2x00mac_sw_scan_complete,
2009 .get_stats = rt2x00mac_get_stats,
2010 .bss_info_changed = rt2x00mac_bss_info_changed,
2011 .conf_tx = rt2x00mac_conf_tx,
2012 .get_tsf = rt2500pci_get_tsf,
2013 .tx_last_beacon = rt2500pci_tx_last_beacon,
2014 .rfkill_poll = rt2x00mac_rfkill_poll,
2015 .flush = rt2x00mac_flush,
2016 .set_antenna = rt2x00mac_set_antenna,
2017 .get_antenna = rt2x00mac_get_antenna,
2018 .get_ringparam = rt2x00mac_get_ringparam,
2019 .tx_frames_pending = rt2x00mac_tx_frames_pending,
2020 };
2021
2022 static const struct rt2x00lib_ops rt2500pci_rt2x00_ops = {
2023 .irq_handler = rt2500pci_interrupt,
2024 .txstatus_tasklet = rt2500pci_txstatus_tasklet,
2025 .tbtt_tasklet = rt2500pci_tbtt_tasklet,
2026 .rxdone_tasklet = rt2500pci_rxdone_tasklet,
2027 .probe_hw = rt2500pci_probe_hw,
2028 .initialize = rt2x00pci_initialize,
2029 .uninitialize = rt2x00pci_uninitialize,
2030 .get_entry_state = rt2500pci_get_entry_state,
2031 .clear_entry = rt2500pci_clear_entry,
2032 .set_device_state = rt2500pci_set_device_state,
2033 .rfkill_poll = rt2500pci_rfkill_poll,
2034 .link_stats = rt2500pci_link_stats,
2035 .reset_tuner = rt2500pci_reset_tuner,
2036 .link_tuner = rt2500pci_link_tuner,
2037 .start_queue = rt2500pci_start_queue,
2038 .kick_queue = rt2500pci_kick_queue,
2039 .stop_queue = rt2500pci_stop_queue,
2040 .flush_queue = rt2x00pci_flush_queue,
2041 .write_tx_desc = rt2500pci_write_tx_desc,
2042 .write_beacon = rt2500pci_write_beacon,
2043 .fill_rxdone = rt2500pci_fill_rxdone,
2044 .config_filter = rt2500pci_config_filter,
2045 .config_intf = rt2500pci_config_intf,
2046 .config_erp = rt2500pci_config_erp,
2047 .config_ant = rt2500pci_config_ant,
2048 .config = rt2500pci_config,
2049 };
2050
2051 static const struct data_queue_desc rt2500pci_queue_rx = {
2052 .entry_num = 32,
2053 .data_size = DATA_FRAME_SIZE,
2054 .desc_size = RXD_DESC_SIZE,
2055 .priv_size = sizeof(struct queue_entry_priv_pci),
2056 };
2057
2058 static const struct data_queue_desc rt2500pci_queue_tx = {
2059 .entry_num = 32,
2060 .data_size = DATA_FRAME_SIZE,
2061 .desc_size = TXD_DESC_SIZE,
2062 .priv_size = sizeof(struct queue_entry_priv_pci),
2063 };
2064
2065 static const struct data_queue_desc rt2500pci_queue_bcn = {
2066 .entry_num = 1,
2067 .data_size = MGMT_FRAME_SIZE,
2068 .desc_size = TXD_DESC_SIZE,
2069 .priv_size = sizeof(struct queue_entry_priv_pci),
2070 };
2071
2072 static const struct data_queue_desc rt2500pci_queue_atim = {
2073 .entry_num = 8,
2074 .data_size = DATA_FRAME_SIZE,
2075 .desc_size = TXD_DESC_SIZE,
2076 .priv_size = sizeof(struct queue_entry_priv_pci),
2077 };
2078
2079 static const struct rt2x00_ops rt2500pci_ops = {
2080 .name = KBUILD_MODNAME,
2081 .max_sta_intf = 1,
2082 .max_ap_intf = 1,
2083 .eeprom_size = EEPROM_SIZE,
2084 .rf_size = RF_SIZE,
2085 .tx_queues = NUM_TX_QUEUES,
2086 .extra_tx_headroom = 0,
2087 .rx = &rt2500pci_queue_rx,
2088 .tx = &rt2500pci_queue_tx,
2089 .bcn = &rt2500pci_queue_bcn,
2090 .atim = &rt2500pci_queue_atim,
2091 .lib = &rt2500pci_rt2x00_ops,
2092 .hw = &rt2500pci_mac80211_ops,
2093 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
2094 .debugfs = &rt2500pci_rt2x00debug,
2095 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
2096 };
2097
2098 /*
2099 * RT2500pci module information.
2100 */
2101 static DEFINE_PCI_DEVICE_TABLE(rt2500pci_device_table) = {
2102 { PCI_DEVICE(0x1814, 0x0201) },
2103 { 0, }
2104 };
2105
2106 MODULE_AUTHOR(DRV_PROJECT);
2107 MODULE_VERSION(DRV_VERSION);
2108 MODULE_DESCRIPTION("Ralink RT2500 PCI & PCMCIA Wireless LAN driver.");
2109 MODULE_SUPPORTED_DEVICE("Ralink RT2560 PCI & PCMCIA chipset based cards");
2110 MODULE_DEVICE_TABLE(pci, rt2500pci_device_table);
2111 MODULE_LICENSE("GPL");
2112
2113 static int rt2500pci_probe(struct pci_dev *pci_dev,
2114 const struct pci_device_id *id)
2115 {
2116 return rt2x00pci_probe(pci_dev, &rt2500pci_ops);
2117 }
2118
2119 static struct pci_driver rt2500pci_driver = {
2120 .name = KBUILD_MODNAME,
2121 .id_table = rt2500pci_device_table,
2122 .probe = rt2500pci_probe,
2123 .remove = __devexit_p(rt2x00pci_remove),
2124 .suspend = rt2x00pci_suspend,
2125 .resume = rt2x00pci_resume,
2126 };
2127
2128 static int __init rt2500pci_init(void)
2129 {
2130 return pci_register_driver(&rt2500pci_driver);
2131 }
2132
2133 static void __exit rt2500pci_exit(void)
2134 {
2135 pci_unregister_driver(&rt2500pci_driver);
2136 }
2137
2138 module_init(rt2500pci_init);
2139 module_exit(rt2500pci_exit);
linux-next