projects / deliverable / linux.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
rt2x00: Implement set_tim callback for all drivers
[deliverable/linux.git] / drivers / net / wireless / rt2x00 / rt2400pci.c
CommitLineData
95ea3627 1/*
4e54c711 2 Copyright (C) 2004 - 2009 rt2x00 SourceForge Project
95ea3627
ID		 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: rt2400pci
23 Abstract: rt2400pci device specific routines.
24 Supported chipsets: RT2460.
25 */
26
95ea3627
ID		 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
35#include "rt2x00.h"
36#include "rt2x00pci.h"
37#include "rt2400pci.h"
38
39/*
40 * Register access.
41 * All access to the CSR registers will go through the methods
42 * rt2x00pci_register_read and rt2x00pci_register_write.
43 * BBP and RF register require indirect register access,
44 * and use the CSR registers BBPCSR and RFCSR to achieve this.
45 * These indirect registers work with busy bits,
46 * and we will try maximal REGISTER_BUSY_COUNT times to access
47 * the register while taking a REGISTER_BUSY_DELAY us delay
48 * between each attampt. When the busy bit is still set at that time,
49 * the access attempt is considered to have failed,
50 * and we will print an error.
51 */
c9c3b1a5
ID		 52#define WAIT_FOR_BBP(__dev, __reg) \
53 rt2x00pci_regbusy_read((__dev), BBPCSR, BBPCSR_BUSY, (__reg))
54#define WAIT_FOR_RF(__dev, __reg) \
55 rt2x00pci_regbusy_read((__dev), RFCSR, RFCSR_BUSY, (__reg))
95ea3627 56
0e14f6d3 57static void rt2400pci_bbp_write(struct rt2x00_dev *rt2x00dev,
95ea3627
ID		 58 const unsigned int word, const u8 value)
59{
60 u32 reg;
61
8ff48a8b
ID		 62 mutex_lock(&rt2x00dev->csr_mutex);
63
95ea3627 64 /*
c9c3b1a5
ID		 65 * Wait until the BBP becomes available, afterwards we
66 * can safely write the new data into the register.
95ea3627 67 */
c9c3b1a5
ID		 68 if (WAIT_FOR_BBP(rt2x00dev, &reg)) {
69 reg = 0;
70 rt2x00_set_field32(&reg, BBPCSR_VALUE, value);
71 rt2x00_set_field32(&reg, BBPCSR_REGNUM, word);
72 rt2x00_set_field32(&reg, BBPCSR_BUSY, 1);
73 rt2x00_set_field32(&reg, BBPCSR_WRITE_CONTROL, 1);
74
75 rt2x00pci_register_write(rt2x00dev, BBPCSR, reg);
76 }
8ff48a8b 77
8ff48a8b 78 mutex_unlock(&rt2x00dev->csr_mutex);
95ea3627
ID		 79}
80
0e14f6d3 81static void rt2400pci_bbp_read(struct rt2x00_dev *rt2x00dev,
95ea3627
ID		 82 const unsigned int word, u8 *value)
83{
84 u32 reg;
85
8ff48a8b
ID		 86 mutex_lock(&rt2x00dev->csr_mutex);
87
95ea3627 88 /*
c9c3b1a5
ID		 89 * Wait until the BBP becomes available, afterwards we
90 * can safely write the read request into the register.
91 * After the data has been written, we wait until hardware
92 * returns the correct value, if at any time the register
93 * doesn't become available in time, reg will be 0xffffffff
94 * which means we return 0xff to the caller.
95ea3627 95 */
c9c3b1a5
ID		 96 if (WAIT_FOR_BBP(rt2x00dev, &reg)) {
97 reg = 0;
98 rt2x00_set_field32(&reg, BBPCSR_REGNUM, word);
99 rt2x00_set_field32(&reg, BBPCSR_BUSY, 1);
100 rt2x00_set_field32(&reg, BBPCSR_WRITE_CONTROL, 0);
95ea3627 101
c9c3b1a5 102 rt2x00pci_register_write(rt2x00dev, BBPCSR, reg);
95ea3627 103
c9c3b1a5
ID		 104 WAIT_FOR_BBP(rt2x00dev, &reg);
105 }
95ea3627
ID		 106
107 *value = rt2x00_get_field32(reg, BBPCSR_VALUE);
8ff48a8b
ID		 108
109 mutex_unlock(&rt2x00dev->csr_mutex);
95ea3627
ID		 110}
111
0e14f6d3 112static void rt2400pci_rf_write(struct rt2x00_dev *rt2x00dev,
95ea3627
ID		 113 const unsigned int word, const u32 value)
114{
115 u32 reg;
95ea3627 116
8ff48a8b
ID		 117 mutex_lock(&rt2x00dev->csr_mutex);
118
c9c3b1a5
ID		 119 /*
120 * Wait until the RF becomes available, afterwards we
121 * can safely write the new data into the register.
122 */
123 if (WAIT_FOR_RF(rt2x00dev, &reg)) {
124 reg = 0;
125 rt2x00_set_field32(&reg, RFCSR_VALUE, value);
126 rt2x00_set_field32(&reg, RFCSR_NUMBER_OF_BITS, 20);
127 rt2x00_set_field32(&reg, RFCSR_IF_SELECT, 0);
128 rt2x00_set_field32(&reg, RFCSR_BUSY, 1);
129
130 rt2x00pci_register_write(rt2x00dev, RFCSR, reg);
131 rt2x00_rf_write(rt2x00dev, word, value);
95ea3627
ID		 132 }
133
8ff48a8b 134 mutex_unlock(&rt2x00dev->csr_mutex);
95ea3627
ID		 135}
136
137static void rt2400pci_eepromregister_read(struct eeprom_93cx6 *eeprom)
138{
139 struct rt2x00_dev *rt2x00dev = eeprom->data;
140 u32 reg;
141
142 rt2x00pci_register_read(rt2x00dev, CSR21, &reg);
143
144 eeprom->reg_data_in = !!rt2x00_get_field32(reg, CSR21_EEPROM_DATA_IN);
145 eeprom->reg_data_out = !!rt2x00_get_field32(reg, CSR21_EEPROM_DATA_OUT);
146 eeprom->reg_data_clock =
147 !!rt2x00_get_field32(reg, CSR21_EEPROM_DATA_CLOCK);
148 eeprom->reg_chip_select =
149 !!rt2x00_get_field32(reg, CSR21_EEPROM_CHIP_SELECT);
150}
151
152static void rt2400pci_eepromregister_write(struct eeprom_93cx6 *eeprom)
153{
154 struct rt2x00_dev *rt2x00dev = eeprom->data;
155 u32 reg = 0;
156
157 rt2x00_set_field32(&reg, CSR21_EEPROM_DATA_IN, !!eeprom->reg_data_in);
158 rt2x00_set_field32(&reg, CSR21_EEPROM_DATA_OUT, !!eeprom->reg_data_out);
159 rt2x00_set_field32(&reg, CSR21_EEPROM_DATA_CLOCK,
160 !!eeprom->reg_data_clock);
161 rt2x00_set_field32(&reg, CSR21_EEPROM_CHIP_SELECT,
162 !!eeprom->reg_chip_select);
163
164 rt2x00pci_register_write(rt2x00dev, CSR21, reg);
165}
166
167#ifdef CONFIG_RT2X00_LIB_DEBUGFS
95ea3627
ID		 168static const struct rt2x00debug rt2400pci_rt2x00debug = {
169 .owner = THIS_MODULE,
170 .csr = {
743b97ca
ID		 171 .read = rt2x00pci_register_read,
172 .write = rt2x00pci_register_write,
173 .flags = RT2X00DEBUGFS_OFFSET,
174 .word_base = CSR_REG_BASE,
95ea3627
ID		 175 .word_size = sizeof(u32),
176 .word_count = CSR_REG_SIZE / sizeof(u32),
177 },
178 .eeprom = {
179 .read = rt2x00_eeprom_read,
180 .write = rt2x00_eeprom_write,
743b97ca 181 .word_base = EEPROM_BASE,
95ea3627
ID		 182 .word_size = sizeof(u16),
183 .word_count = EEPROM_SIZE / sizeof(u16),
184 },
185 .bbp = {
186 .read = rt2400pci_bbp_read,
187 .write = rt2400pci_bbp_write,
743b97ca 188 .word_base = BBP_BASE,
95ea3627
ID		 189 .word_size = sizeof(u8),
190 .word_count = BBP_SIZE / sizeof(u8),
191 },
192 .rf = {
193 .read = rt2x00_rf_read,
194 .write = rt2400pci_rf_write,
743b97ca 195 .word_base = RF_BASE,
95ea3627
ID		 196 .word_size = sizeof(u32),
197 .word_count = RF_SIZE / sizeof(u32),
198 },
199};
200#endif /* CONFIG_RT2X00_LIB_DEBUGFS */
201
95ea3627
ID		 202static int rt2400pci_rfkill_poll(struct rt2x00_dev *rt2x00dev)
203{
204 u32 reg;
205
206 rt2x00pci_register_read(rt2x00dev, GPIOCSR, &reg);
207 return rt2x00_get_field32(reg, GPIOCSR_BIT0);
208}
95ea3627 209
771fd565 210#ifdef CONFIG_RT2X00_LIB_LEDS
a2e1d52a 211static void rt2400pci_brightness_set(struct led_classdev *led_cdev,
a9450b70
ID		 212 enum led_brightness brightness)
213{
214 struct rt2x00_led *led =
215 container_of(led_cdev, struct rt2x00_led, led_dev);
216 unsigned int enabled = brightness != LED_OFF;
a9450b70
ID		 217 u32 reg;
218
219 rt2x00pci_register_read(led->rt2x00dev, LEDCSR, &reg);
220
a2e1d52a 221 if (led->type == LED_TYPE_RADIO || led->type == LED_TYPE_ASSOC)
a9450b70 222 rt2x00_set_field32(&reg, LEDCSR_LINK, enabled);
a2e1d52a
ID		 223 else if (led->type == LED_TYPE_ACTIVITY)
224 rt2x00_set_field32(&reg, LEDCSR_ACTIVITY, enabled);
a9450b70
ID		 225
226 rt2x00pci_register_write(led->rt2x00dev, LEDCSR, reg);
227}
a2e1d52a
ID		 228
229static int rt2400pci_blink_set(struct led_classdev *led_cdev,
230 unsigned long *delay_on,
231 unsigned long *delay_off)
232{
233 struct rt2x00_led *led =
234 container_of(led_cdev, struct rt2x00_led, led_dev);
235 u32 reg;
236
237 rt2x00pci_register_read(led->rt2x00dev, LEDCSR, &reg);
238 rt2x00_set_field32(&reg, LEDCSR_ON_PERIOD, *delay_on);
239 rt2x00_set_field32(&reg, LEDCSR_OFF_PERIOD, *delay_off);
240 rt2x00pci_register_write(led->rt2x00dev, LEDCSR, reg);
241
242 return 0;
243}
475433be
ID		 244
245static void rt2400pci_init_led(struct rt2x00_dev *rt2x00dev,
246 struct rt2x00_led *led,
247 enum led_type type)
248{
249 led->rt2x00dev = rt2x00dev;
250 led->type = type;
251 led->led_dev.brightness_set = rt2400pci_brightness_set;
252 led->led_dev.blink_set = rt2400pci_blink_set;
253 led->flags = LED_INITIALIZED;
254}
771fd565 255#endif /* CONFIG_RT2X00_LIB_LEDS */
a9450b70 256
95ea3627
ID		 257/*
258 * Configuration handlers.
259 */
3a643d24
ID		 260static void rt2400pci_config_filter(struct rt2x00_dev *rt2x00dev,
261 const unsigned int filter_flags)
262{
263 u32 reg;
264
265 /*
266 * Start configuration steps.
267 * Note that the version error will always be dropped
268 * since there is no filter for it at this time.
269 */
270 rt2x00pci_register_read(rt2x00dev, RXCSR0, &reg);
271 rt2x00_set_field32(&reg, RXCSR0_DROP_CRC,
272 !(filter_flags & FIF_FCSFAIL));
273 rt2x00_set_field32(&reg, RXCSR0_DROP_PHYSICAL,
274 !(filter_flags & FIF_PLCPFAIL));
275 rt2x00_set_field32(&reg, RXCSR0_DROP_CONTROL,
276 !(filter_flags & FIF_CONTROL));
277 rt2x00_set_field32(&reg, RXCSR0_DROP_NOT_TO_ME,
278 !(filter_flags & FIF_PROMISC_IN_BSS));
279 rt2x00_set_field32(&reg, RXCSR0_DROP_TODS,
e0b005fa
ID		 280 !(filter_flags & FIF_PROMISC_IN_BSS) &&
281 !rt2x00dev->intf_ap_count);
3a643d24
ID		 282 rt2x00_set_field32(&reg, RXCSR0_DROP_VERSION_ERROR, 1);
283 rt2x00pci_register_write(rt2x00dev, RXCSR0, reg);
284}
285
6bb40dd1
ID		 286static void rt2400pci_config_intf(struct rt2x00_dev *rt2x00dev,
287 struct rt2x00_intf *intf,
288 struct rt2x00intf_conf *conf,
289 const unsigned int flags)
95ea3627 290{
6bb40dd1
ID		 291 unsigned int bcn_preload;
292 u32 reg;
95ea3627 293
6bb40dd1 294 if (flags & CONFIG_UPDATE_TYPE) {
6bb40dd1
ID		 295 /*
296 * Enable beacon config
297 */
bad13639 298 bcn_preload = PREAMBLE + GET_DURATION(IEEE80211_HEADER, 20);
6bb40dd1
ID		 299 rt2x00pci_register_read(rt2x00dev, BCNCSR1, &reg);
300 rt2x00_set_field32(&reg, BCNCSR1_PRELOAD, bcn_preload);
301 rt2x00pci_register_write(rt2x00dev, BCNCSR1, reg);
95ea3627 302
6bb40dd1
ID		 303 /*
304 * Enable synchronisation.
305 */
306 rt2x00pci_register_read(rt2x00dev, CSR14, &reg);
fd3c91c5 307 rt2x00_set_field32(&reg, CSR14_TSF_COUNT, 1);
6bb40dd1 308 rt2x00_set_field32(&reg, CSR14_TSF_SYNC, conf->sync);
fd3c91c5 309 rt2x00_set_field32(&reg, CSR14_TBCN, 1);
6bb40dd1
ID		 310 rt2x00pci_register_write(rt2x00dev, CSR14, reg);
311 }
95ea3627 312
6bb40dd1
ID		 313 if (flags & CONFIG_UPDATE_MAC)
314 rt2x00pci_register_multiwrite(rt2x00dev, CSR3,
315 conf->mac, sizeof(conf->mac));
95ea3627 316
6bb40dd1
ID		 317 if (flags & CONFIG_UPDATE_BSSID)
318 rt2x00pci_register_multiwrite(rt2x00dev, CSR5,
319 conf->bssid, sizeof(conf->bssid));
95ea3627
ID		 320}
321
3a643d24
ID		 322static void rt2400pci_config_erp(struct rt2x00_dev *rt2x00dev,
323 struct rt2x00lib_erp *erp)
95ea3627 324{
5c58ee51 325 int preamble_mask;
95ea3627 326 u32 reg;
95ea3627 327
5c58ee51
ID		 328 /*
329 * When short preamble is enabled, we should set bit 0x08
330 */
72810379 331 preamble_mask = erp->short_preamble << 3;
95ea3627
ID		 332
333 rt2x00pci_register_read(rt2x00dev, TXCSR1, &reg);
8a566afe 334 rt2x00_set_field32(&reg, TXCSR1_ACK_TIMEOUT, erp->ack_timeout);
72810379
ID		 335 rt2x00_set_field32(&reg, TXCSR1_ACK_CONSUME_TIME,
336 erp->ack_consume_time);
8a566afe
ID		 337 rt2x00_set_field32(&reg, TXCSR1_TSF_OFFSET, IEEE80211_HEADER);
338 rt2x00_set_field32(&reg, TXCSR1_AUTORESPONDER, 1);
95ea3627
ID		 339 rt2x00pci_register_write(rt2x00dev, TXCSR1, reg);
340
95ea3627 341 rt2x00pci_register_read(rt2x00dev, ARCSR2, &reg);
44a9809b 342 rt2x00_set_field32(&reg, ARCSR2_SIGNAL, 0x00);
95ea3627 343 rt2x00_set_field32(&reg, ARCSR2_SERVICE, 0x04);
bad13639 344 rt2x00_set_field32(&reg, ARCSR2_LENGTH, GET_DURATION(ACK_SIZE, 10));
95ea3627
ID		 345 rt2x00pci_register_write(rt2x00dev, ARCSR2, reg);
346
347 rt2x00pci_register_read(rt2x00dev, ARCSR3, &reg);
5c58ee51 348 rt2x00_set_field32(&reg, ARCSR3_SIGNAL, 0x01 | preamble_mask);
95ea3627 349 rt2x00_set_field32(&reg, ARCSR3_SERVICE, 0x04);
bad13639 350 rt2x00_set_field32(&reg, ARCSR2_LENGTH, GET_DURATION(ACK_SIZE, 20));
95ea3627
ID		 351 rt2x00pci_register_write(rt2x00dev, ARCSR3, reg);
352
353 rt2x00pci_register_read(rt2x00dev, ARCSR4, &reg);
5c58ee51 354 rt2x00_set_field32(&reg, ARCSR4_SIGNAL, 0x02 | preamble_mask);
95ea3627 355 rt2x00_set_field32(&reg, ARCSR4_SERVICE, 0x04);
bad13639 356 rt2x00_set_field32(&reg, ARCSR2_LENGTH, GET_DURATION(ACK_SIZE, 55));
95ea3627
ID		 357 rt2x00pci_register_write(rt2x00dev, ARCSR4, reg);
358
359 rt2x00pci_register_read(rt2x00dev, ARCSR5, &reg);
5c58ee51 360 rt2x00_set_field32(&reg, ARCSR5_SIGNAL, 0x03 | preamble_mask);
95ea3627 361 rt2x00_set_field32(&reg, ARCSR5_SERVICE, 0x84);
bad13639 362 rt2x00_set_field32(&reg, ARCSR2_LENGTH, GET_DURATION(ACK_SIZE, 110));
95ea3627 363 rt2x00pci_register_write(rt2x00dev, ARCSR5, reg);
e4ea1c40
ID		 364
365 rt2x00pci_register_write(rt2x00dev, ARCSR1, erp->basic_rates);
366
367 rt2x00pci_register_read(rt2x00dev, CSR11, &reg);
368 rt2x00_set_field32(&reg, CSR11_SLOT_TIME, erp->slot_time);
369 rt2x00pci_register_write(rt2x00dev, CSR11, reg);
370
8a566afe
ID		 371 rt2x00pci_register_read(rt2x00dev, CSR12, &reg);
372 rt2x00_set_field32(&reg, CSR12_BEACON_INTERVAL, erp->beacon_int * 16);
373 rt2x00_set_field32(&reg, CSR12_CFP_MAX_DURATION, erp->beacon_int * 16);
374 rt2x00pci_register_write(rt2x00dev, CSR12, reg);
375
e4ea1c40
ID		 376 rt2x00pci_register_read(rt2x00dev, CSR18, &reg);
377 rt2x00_set_field32(&reg, CSR18_SIFS, erp->sifs);
378 rt2x00_set_field32(&reg, CSR18_PIFS, erp->pifs);
379 rt2x00pci_register_write(rt2x00dev, CSR18, reg);
380
381 rt2x00pci_register_read(rt2x00dev, CSR19, &reg);
382 rt2x00_set_field32(&reg, CSR19_DIFS, erp->difs);
383 rt2x00_set_field32(&reg, CSR19_EIFS, erp->eifs);
384 rt2x00pci_register_write(rt2x00dev, CSR19, reg);
95ea3627
ID		 385}
386
e4ea1c40
ID		 387static void rt2400pci_config_ant(struct rt2x00_dev *rt2x00dev,
388 struct antenna_setup *ant)
95ea3627 389{
e4ea1c40
ID		 390 u8 r1;
391 u8 r4;
392
393 /*
394 * We should never come here because rt2x00lib is supposed
395 * to catch this and send us the correct antenna explicitely.
396 */
397 BUG_ON(ant->rx == ANTENNA_SW_DIVERSITY ||
398 ant->tx == ANTENNA_SW_DIVERSITY);
399
400 rt2400pci_bbp_read(rt2x00dev, 4, &r4);
401 rt2400pci_bbp_read(rt2x00dev, 1, &r1);
402
403 /*
404 * Configure the TX antenna.
405 */
406 switch (ant->tx) {
407 case ANTENNA_HW_DIVERSITY:
408 rt2x00_set_field8(&r1, BBP_R1_TX_ANTENNA, 1);
409 break;
410 case ANTENNA_A:
411 rt2x00_set_field8(&r1, BBP_R1_TX_ANTENNA, 0);
412 break;
413 case ANTENNA_B:
414 default:
415 rt2x00_set_field8(&r1, BBP_R1_TX_ANTENNA, 2);
416 break;
417 }
418
419 /*
420 * Configure the RX antenna.
421 */
422 switch (ant->rx) {
423 case ANTENNA_HW_DIVERSITY:
424 rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 1);
425 break;
426 case ANTENNA_A:
427 rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 0);
428 break;
429 case ANTENNA_B:
430 default:
431 rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 2);
432 break;
433 }
434
435 rt2400pci_bbp_write(rt2x00dev, 4, r4);
436 rt2400pci_bbp_write(rt2x00dev, 1, r1);
95ea3627
ID		 437}
438
439static void rt2400pci_config_channel(struct rt2x00_dev *rt2x00dev,
5c58ee51 440 struct rf_channel *rf)
95ea3627 441{
95ea3627
ID		 442 /*
443 * Switch on tuning bits.
444 */
5c58ee51
ID		 445 rt2x00_set_field32(&rf->rf1, RF1_TUNER, 1);
446 rt2x00_set_field32(&rf->rf3, RF3_TUNER, 1);
95ea3627 447
5c58ee51
ID		 448 rt2400pci_rf_write(rt2x00dev, 1, rf->rf1);
449 rt2400pci_rf_write(rt2x00dev, 2, rf->rf2);
450 rt2400pci_rf_write(rt2x00dev, 3, rf->rf3);
95ea3627
ID		 451
452 /*
453 * RF2420 chipset don't need any additional actions.
454 */
455 if (rt2x00_rf(&rt2x00dev->chip, RF2420))
456 return;
457
458 /*
459 * For the RT2421 chipsets we need to write an invalid
460 * reference clock rate to activate auto_tune.
461 * After that we set the value back to the correct channel.
462 */
5c58ee51 463 rt2400pci_rf_write(rt2x00dev, 1, rf->rf1);
95ea3627 464 rt2400pci_rf_write(rt2x00dev, 2, 0x000c2a32);
5c58ee51 465 rt2400pci_rf_write(rt2x00dev, 3, rf->rf3);
95ea3627
ID		 466
467 msleep(1);
468
5c58ee51
ID		 469 rt2400pci_rf_write(rt2x00dev, 1, rf->rf1);
470 rt2400pci_rf_write(rt2x00dev, 2, rf->rf2);
471 rt2400pci_rf_write(rt2x00dev, 3, rf->rf3);
95ea3627
ID		 472
473 msleep(1);
474
475 /*
476 * Switch off tuning bits.
477 */
5c58ee51
ID		 478 rt2x00_set_field32(&rf->rf1, RF1_TUNER, 0);
479 rt2x00_set_field32(&rf->rf3, RF3_TUNER, 0);
95ea3627 480
5c58ee51
ID		 481 rt2400pci_rf_write(rt2x00dev, 1, rf->rf1);
482 rt2400pci_rf_write(rt2x00dev, 3, rf->rf3);
95ea3627
ID		 483
484 /*
485 * Clear false CRC during channel switch.
486 */
5c58ee51 487 rt2x00pci_register_read(rt2x00dev, CNT0, &rf->rf1);
95ea3627
ID		 488}
489
490static void rt2400pci_config_txpower(struct rt2x00_dev *rt2x00dev, int txpower)
491{
492 rt2400pci_bbp_write(rt2x00dev, 3, TXPOWER_TO_DEV(txpower));
493}
494
e4ea1c40
ID		 495static void rt2400pci_config_retry_limit(struct rt2x00_dev *rt2x00dev,
496 struct rt2x00lib_conf *libconf)
95ea3627 497{
e4ea1c40 498 u32 reg;
95ea3627 499
e4ea1c40
ID		 500 rt2x00pci_register_read(rt2x00dev, CSR11, &reg);
501 rt2x00_set_field32(&reg, CSR11_LONG_RETRY,
502 libconf->conf->long_frame_max_tx_count);
503 rt2x00_set_field32(&reg, CSR11_SHORT_RETRY,
504 libconf->conf->short_frame_max_tx_count);
505 rt2x00pci_register_write(rt2x00dev, CSR11, reg);
95ea3627
ID		 506}
507
7d7f19cc
ID		 508static void rt2400pci_config_ps(struct rt2x00_dev *rt2x00dev,
509 struct rt2x00lib_conf *libconf)
510{
511 enum dev_state state =
512 (libconf->conf->flags & IEEE80211_CONF_PS) ?
513 STATE_SLEEP : STATE_AWAKE;
514 u32 reg;
515
516 if (state == STATE_SLEEP) {
517 rt2x00pci_register_read(rt2x00dev, CSR20, &reg);
518 rt2x00_set_field32(&reg, CSR20_DELAY_AFTER_TBCN,
6b347bff 519 (rt2x00dev->beacon_int - 20) * 16);
7d7f19cc
ID		 520 rt2x00_set_field32(&reg, CSR20_TBCN_BEFORE_WAKEUP,
521 libconf->conf->listen_interval - 1);
522
523 /* We must first disable autowake before it can be enabled */
524 rt2x00_set_field32(&reg, CSR20_AUTOWAKE, 0);
525 rt2x00pci_register_write(rt2x00dev, CSR20, reg);
526
527 rt2x00_set_field32(&reg, CSR20_AUTOWAKE, 1);
528 rt2x00pci_register_write(rt2x00dev, CSR20, reg);
529 }
530
531 rt2x00dev->ops->lib->set_device_state(rt2x00dev, state);
532}
533
95ea3627 534static void rt2400pci_config(struct rt2x00_dev *rt2x00dev,
6bb40dd1
ID		 535 struct rt2x00lib_conf *libconf,
536 const unsigned int flags)
95ea3627 537{
e4ea1c40 538 if (flags & IEEE80211_CONF_CHANGE_CHANNEL)
5c58ee51 539 rt2400pci_config_channel(rt2x00dev, &libconf->rf);
e4ea1c40 540 if (flags & IEEE80211_CONF_CHANGE_POWER)
5c58ee51
ID		 541 rt2400pci_config_txpower(rt2x00dev,
542 libconf->conf->power_level);
e4ea1c40
ID		 543 if (flags & IEEE80211_CONF_CHANGE_RETRY_LIMITS)
544 rt2400pci_config_retry_limit(rt2x00dev, libconf);
7d7f19cc
ID		 545 if (flags & IEEE80211_CONF_CHANGE_PS)
546 rt2400pci_config_ps(rt2x00dev, libconf);
95ea3627
ID		 547}
548
549static void rt2400pci_config_cw(struct rt2x00_dev *rt2x00dev,
181d6902 550 const int cw_min, const int cw_max)
95ea3627
ID		 551{
552 u32 reg;
553
554 rt2x00pci_register_read(rt2x00dev, CSR11, &reg);
181d6902
ID		 555 rt2x00_set_field32(&reg, CSR11_CWMIN, cw_min);
556 rt2x00_set_field32(&reg, CSR11_CWMAX, cw_max);
95ea3627
ID		 557 rt2x00pci_register_write(rt2x00dev, CSR11, reg);
558}
559
95ea3627
ID		 560/*
561 * Link tuning
562 */
ebcf26da
ID		 563static void rt2400pci_link_stats(struct rt2x00_dev *rt2x00dev,
564 struct link_qual *qual)
95ea3627
ID		 565{
566 u32 reg;
567 u8 bbp;
568
569 /*
570 * Update FCS error count from register.
571 */
572 rt2x00pci_register_read(rt2x00dev, CNT0, &reg);
ebcf26da 573 qual->rx_failed = rt2x00_get_field32(reg, CNT0_FCS_ERROR);
95ea3627
ID		 574
575 /*
576 * Update False CCA count from register.
577 */
578 rt2400pci_bbp_read(rt2x00dev, 39, &bbp);
ebcf26da 579 qual->false_cca = bbp;
95ea3627
ID		 580}
581
5352ff65
ID		 582static inline void rt2400pci_set_vgc(struct rt2x00_dev *rt2x00dev,
583 struct link_qual *qual, u8 vgc_level)
eb20b4e8
ID		 584{
585 rt2400pci_bbp_write(rt2x00dev, 13, vgc_level);
5352ff65
ID		 586 qual->vgc_level = vgc_level;
587 qual->vgc_level_reg = vgc_level;
eb20b4e8
ID		 588}
589
5352ff65
ID		 590static void rt2400pci_reset_tuner(struct rt2x00_dev *rt2x00dev,
591 struct link_qual *qual)
95ea3627 592{
5352ff65 593 rt2400pci_set_vgc(rt2x00dev, qual, 0x08);
95ea3627
ID		 594}
595
5352ff65
ID		 596static void rt2400pci_link_tuner(struct rt2x00_dev *rt2x00dev,
597 struct link_qual *qual, const u32 count)
95ea3627 598{
95ea3627
ID		 599 /*
600 * The link tuner should not run longer then 60 seconds,
601 * and should run once every 2 seconds.
602 */
5352ff65 603 if (count > 60 || !(count & 1))
95ea3627
ID		 604 return;
605
606 /*
607 * Base r13 link tuning on the false cca count.
608 */
5352ff65
ID		 609 if ((qual->false_cca > 512) && (qual->vgc_level < 0x20))
610 rt2400pci_set_vgc(rt2x00dev, qual, ++qual->vgc_level);
611 else if ((qual->false_cca < 100) && (qual->vgc_level > 0x08))
612 rt2400pci_set_vgc(rt2x00dev, qual, --qual->vgc_level);
95ea3627
ID		 613}
614
615/*
616 * Initialization functions.
617 */
798b7adb 618static bool rt2400pci_get_entry_state(struct queue_entry *entry)
95ea3627 619{
b8be63ff 620 struct queue_entry_priv_pci *entry_priv = entry->priv_data;
95ea3627
ID		 621 u32 word;
622
798b7adb
ID		 623 if (entry->queue->qid == QID_RX) {
624 rt2x00_desc_read(entry_priv->desc, 0, &word);
95ea3627 625
798b7adb
ID		 626 return rt2x00_get_field32(word, RXD_W0_OWNER_NIC);
627 } else {
628 rt2x00_desc_read(entry_priv->desc, 0, &word);
95ea3627 629
798b7adb
ID		 630 return (rt2x00_get_field32(word, TXD_W0_OWNER_NIC) ||
631 rt2x00_get_field32(word, TXD_W0_VALID));
632 }
95ea3627
ID		 633}
634
798b7adb 635static void rt2400pci_clear_entry(struct queue_entry *entry)
95ea3627 636{
b8be63ff 637 struct queue_entry_priv_pci *entry_priv = entry->priv_data;
798b7adb 638 struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
95ea3627
ID		 639 u32 word;
640
798b7adb
ID		 641 if (entry->queue->qid == QID_RX) {
642 rt2x00_desc_read(entry_priv->desc, 2, &word);
643 rt2x00_set_field32(&word, RXD_W2_BUFFER_LENGTH, entry->skb->len);
644 rt2x00_desc_write(entry_priv->desc, 2, word);
645
646 rt2x00_desc_read(entry_priv->desc, 1, &word);
647 rt2x00_set_field32(&word, RXD_W1_BUFFER_ADDRESS, skbdesc->skb_dma);
648 rt2x00_desc_write(entry_priv->desc, 1, word);
649
650 rt2x00_desc_read(entry_priv->desc, 0, &word);
651 rt2x00_set_field32(&word, RXD_W0_OWNER_NIC, 1);
652 rt2x00_desc_write(entry_priv->desc, 0, word);
653 } else {
654 rt2x00_desc_read(entry_priv->desc, 0, &word);
655 rt2x00_set_field32(&word, TXD_W0_VALID, 0);
656 rt2x00_set_field32(&word, TXD_W0_OWNER_NIC, 0);
657 rt2x00_desc_write(entry_priv->desc, 0, word);
658 }
95ea3627
ID		 659}
660
181d6902 661static int rt2400pci_init_queues(struct rt2x00_dev *rt2x00dev)
95ea3627 662{
b8be63ff 663 struct queue_entry_priv_pci *entry_priv;
95ea3627
ID		 664 u32 reg;
665
95ea3627
ID		 666 /*
667 * Initialize registers.
668 */
669 rt2x00pci_register_read(rt2x00dev, TXCSR2, &reg);
181d6902
ID		 670 rt2x00_set_field32(&reg, TXCSR2_TXD_SIZE, rt2x00dev->tx[0].desc_size);
671 rt2x00_set_field32(&reg, TXCSR2_NUM_TXD, rt2x00dev->tx[1].limit);
672 rt2x00_set_field32(&reg, TXCSR2_NUM_ATIM, rt2x00dev->bcn[1].limit);
673 rt2x00_set_field32(&reg, TXCSR2_NUM_PRIO, rt2x00dev->tx[0].limit);
95ea3627
ID		 674 rt2x00pci_register_write(rt2x00dev, TXCSR2, reg);
675
b8be63ff 676 entry_priv = rt2x00dev->tx[1].entries[0].priv_data;
95ea3627 677 rt2x00pci_register_read(rt2x00dev, TXCSR3, &reg);
30b3a23c 678 rt2x00_set_field32(&reg, TXCSR3_TX_RING_REGISTER,
b8be63ff 679 entry_priv->desc_dma);
95ea3627
ID		 680 rt2x00pci_register_write(rt2x00dev, TXCSR3, reg);
681
b8be63ff 682 entry_priv = rt2x00dev->tx[0].entries[0].priv_data;
95ea3627 683 rt2x00pci_register_read(rt2x00dev, TXCSR5, &reg);
30b3a23c 684 rt2x00_set_field32(&reg, TXCSR5_PRIO_RING_REGISTER,
b8be63ff 685 entry_priv->desc_dma);
95ea3627
ID		 686 rt2x00pci_register_write(rt2x00dev, TXCSR5, reg);
687
b8be63ff 688 entry_priv = rt2x00dev->bcn[1].entries[0].priv_data;
95ea3627 689 rt2x00pci_register_read(rt2x00dev, TXCSR4, &reg);
30b3a23c 690 rt2x00_set_field32(&reg, TXCSR4_ATIM_RING_REGISTER,
b8be63ff 691 entry_priv->desc_dma);
95ea3627
ID		 692 rt2x00pci_register_write(rt2x00dev, TXCSR4, reg);
693
b8be63ff 694 entry_priv = rt2x00dev->bcn[0].entries[0].priv_data;
95ea3627 695 rt2x00pci_register_read(rt2x00dev, TXCSR6, &reg);
30b3a23c 696 rt2x00_set_field32(&reg, TXCSR6_BEACON_RING_REGISTER,
b8be63ff 697 entry_priv->desc_dma);
95ea3627
ID		 698 rt2x00pci_register_write(rt2x00dev, TXCSR6, reg);
699
700 rt2x00pci_register_read(rt2x00dev, RXCSR1, &reg);
701 rt2x00_set_field32(&reg, RXCSR1_RXD_SIZE, rt2x00dev->rx->desc_size);
181d6902 702 rt2x00_set_field32(&reg, RXCSR1_NUM_RXD, rt2x00dev->rx->limit);
95ea3627
ID		 703 rt2x00pci_register_write(rt2x00dev, RXCSR1, reg);
704
b8be63ff 705 entry_priv = rt2x00dev->rx->entries[0].priv_data;
95ea3627 706 rt2x00pci_register_read(rt2x00dev, RXCSR2, &reg);
b8be63ff
ID		 707 rt2x00_set_field32(&reg, RXCSR2_RX_RING_REGISTER,
708 entry_priv->desc_dma);
95ea3627
ID		 709 rt2x00pci_register_write(rt2x00dev, RXCSR2, reg);
710
711 return 0;
712}
713
714static int rt2400pci_init_registers(struct rt2x00_dev *rt2x00dev)
715{
716 u32 reg;
717
718 rt2x00pci_register_write(rt2x00dev, PSCSR0, 0x00020002);
719 rt2x00pci_register_write(rt2x00dev, PSCSR1, 0x00000002);
720 rt2x00pci_register_write(rt2x00dev, PSCSR2, 0x00023f20);
721 rt2x00pci_register_write(rt2x00dev, PSCSR3, 0x00000002);
722
723 rt2x00pci_register_read(rt2x00dev, TIMECSR, &reg);
724 rt2x00_set_field32(&reg, TIMECSR_US_COUNT, 33);
725 rt2x00_set_field32(&reg, TIMECSR_US_64_COUNT, 63);
726 rt2x00_set_field32(&reg, TIMECSR_BEACON_EXPECT, 0);
727 rt2x00pci_register_write(rt2x00dev, TIMECSR, reg);
728
729 rt2x00pci_register_read(rt2x00dev, CSR9, &reg);
730 rt2x00_set_field32(&reg, CSR9_MAX_FRAME_UNIT,
731 (rt2x00dev->rx->data_size / 128));
732 rt2x00pci_register_write(rt2x00dev, CSR9, reg);
733
1f909162
ID		 734 rt2x00pci_register_read(rt2x00dev, CSR14, &reg);
735 rt2x00_set_field32(&reg, CSR14_TSF_COUNT, 0);
736 rt2x00_set_field32(&reg, CSR14_TSF_SYNC, 0);
737 rt2x00_set_field32(&reg, CSR14_TBCN, 0);
738 rt2x00_set_field32(&reg, CSR14_TCFP, 0);
739 rt2x00_set_field32(&reg, CSR14_TATIMW, 0);
740 rt2x00_set_field32(&reg, CSR14_BEACON_GEN, 0);
741 rt2x00_set_field32(&reg, CSR14_CFP_COUNT_PRELOAD, 0);
742 rt2x00_set_field32(&reg, CSR14_TBCM_PRELOAD, 0);
743 rt2x00pci_register_write(rt2x00dev, CSR14, reg);
744
95ea3627
ID		 745 rt2x00pci_register_write(rt2x00dev, CNT3, 0x3f080000);
746
747 rt2x00pci_register_read(rt2x00dev, ARCSR0, &reg);
748 rt2x00_set_field32(&reg, ARCSR0_AR_BBP_DATA0, 133);
749 rt2x00_set_field32(&reg, ARCSR0_AR_BBP_ID0, 134);
750 rt2x00_set_field32(&reg, ARCSR0_AR_BBP_DATA1, 136);
751 rt2x00_set_field32(&reg, ARCSR0_AR_BBP_ID1, 135);
752 rt2x00pci_register_write(rt2x00dev, ARCSR0, reg);
753
754 rt2x00pci_register_read(rt2x00dev, RXCSR3, &reg);
755 rt2x00_set_field32(&reg, RXCSR3_BBP_ID0, 3); /* Tx power.*/
756 rt2x00_set_field32(&reg, RXCSR3_BBP_ID0_VALID, 1);
757 rt2x00_set_field32(&reg, RXCSR3_BBP_ID1, 32); /* Signal */
758 rt2x00_set_field32(&reg, RXCSR3_BBP_ID1_VALID, 1);
759 rt2x00_set_field32(&reg, RXCSR3_BBP_ID2, 36); /* Rssi */
760 rt2x00_set_field32(&reg, RXCSR3_BBP_ID2_VALID, 1);
761 rt2x00pci_register_write(rt2x00dev, RXCSR3, reg);
762
763 rt2x00pci_register_write(rt2x00dev, PWRCSR0, 0x3f3b3100);
764
765 if (rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_AWAKE))
766 return -EBUSY;
767
768 rt2x00pci_register_write(rt2x00dev, MACCSR0, 0x00217223);
769 rt2x00pci_register_write(rt2x00dev, MACCSR1, 0x00235518);
770
771 rt2x00pci_register_read(rt2x00dev, MACCSR2, &reg);
772 rt2x00_set_field32(&reg, MACCSR2_DELAY, 64);
773 rt2x00pci_register_write(rt2x00dev, MACCSR2, reg);
774
775 rt2x00pci_register_read(rt2x00dev, RALINKCSR, &reg);
776 rt2x00_set_field32(&reg, RALINKCSR_AR_BBP_DATA0, 17);
777 rt2x00_set_field32(&reg, RALINKCSR_AR_BBP_ID0, 154);
778 rt2x00_set_field32(&reg, RALINKCSR_AR_BBP_DATA1, 0);
779 rt2x00_set_field32(&reg, RALINKCSR_AR_BBP_ID1, 154);
780 rt2x00pci_register_write(rt2x00dev, RALINKCSR, reg);
781
782 rt2x00pci_register_read(rt2x00dev, CSR1, &reg);
783 rt2x00_set_field32(&reg, CSR1_SOFT_RESET, 1);
784 rt2x00_set_field32(&reg, CSR1_BBP_RESET, 0);
785 rt2x00_set_field32(&reg, CSR1_HOST_READY, 0);
786 rt2x00pci_register_write(rt2x00dev, CSR1, reg);
787
788 rt2x00pci_register_read(rt2x00dev, CSR1, &reg);
789 rt2x00_set_field32(&reg, CSR1_SOFT_RESET, 0);
790 rt2x00_set_field32(&reg, CSR1_HOST_READY, 1);
791 rt2x00pci_register_write(rt2x00dev, CSR1, reg);
792
793 /*
794 * We must clear the FCS and FIFO error count.
795 * These registers are cleared on read,
796 * so we may pass a useless variable to store the value.
797 */
798 rt2x00pci_register_read(rt2x00dev, CNT0, &reg);
799 rt2x00pci_register_read(rt2x00dev, CNT4, &reg);
800
801 return 0;
802}
803
2b08da3f 804static int rt2400pci_wait_bbp_ready(struct rt2x00_dev *rt2x00dev)
95ea3627
ID		 805{
806 unsigned int i;
95ea3627
ID		 807 u8 value;
808
809 for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
810 rt2400pci_bbp_read(rt2x00dev, 0, &value);
811 if ((value != 0xff) && (value != 0x00))
2b08da3f 812 return 0;
95ea3627
ID		 813 udelay(REGISTER_BUSY_DELAY);
814 }
815
816 ERROR(rt2x00dev, "BBP register access failed, aborting.\n");
817 return -EACCES;
2b08da3f
ID		 818}
819
820static int rt2400pci_init_bbp(struct rt2x00_dev *rt2x00dev)
821{
822 unsigned int i;
823 u16 eeprom;
824 u8 reg_id;
825 u8 value;
826
827 if (unlikely(rt2400pci_wait_bbp_ready(rt2x00dev)))
828 return -EACCES;
95ea3627 829
95ea3627
ID		 830 rt2400pci_bbp_write(rt2x00dev, 1, 0x00);
831 rt2400pci_bbp_write(rt2x00dev, 3, 0x27);
832 rt2400pci_bbp_write(rt2x00dev, 4, 0x08);
833 rt2400pci_bbp_write(rt2x00dev, 10, 0x0f);
834 rt2400pci_bbp_write(rt2x00dev, 15, 0x72);
835 rt2400pci_bbp_write(rt2x00dev, 16, 0x74);
836 rt2400pci_bbp_write(rt2x00dev, 17, 0x20);
837 rt2400pci_bbp_write(rt2x00dev, 18, 0x72);
838 rt2400pci_bbp_write(rt2x00dev, 19, 0x0b);
839 rt2400pci_bbp_write(rt2x00dev, 20, 0x00);
840 rt2400pci_bbp_write(rt2x00dev, 28, 0x11);
841 rt2400pci_bbp_write(rt2x00dev, 29, 0x04);
842 rt2400pci_bbp_write(rt2x00dev, 30, 0x21);
843 rt2400pci_bbp_write(rt2x00dev, 31, 0x00);
844
95ea3627
ID		 845 for (i = 0; i < EEPROM_BBP_SIZE; i++) {
846 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBP_START + i, &eeprom);
847
848 if (eeprom != 0xffff && eeprom != 0x0000) {
849 reg_id = rt2x00_get_field16(eeprom, EEPROM_BBP_REG_ID);
850 value = rt2x00_get_field16(eeprom, EEPROM_BBP_VALUE);
95ea3627
ID		 851 rt2400pci_bbp_write(rt2x00dev, reg_id, value);
852 }
853 }
95ea3627
ID		 854
855 return 0;
856}
857
858/*
859 * Device state switch handlers.
860 */
861static void rt2400pci_toggle_rx(struct rt2x00_dev *rt2x00dev,
862 enum dev_state state)
863{
864 u32 reg;
865
866 rt2x00pci_register_read(rt2x00dev, RXCSR0, &reg);
867 rt2x00_set_field32(&reg, RXCSR0_DISABLE_RX,
2b08da3f
ID		 868 (state == STATE_RADIO_RX_OFF) ||
869 (state == STATE_RADIO_RX_OFF_LINK));
95ea3627
ID		 870 rt2x00pci_register_write(rt2x00dev, RXCSR0, reg);
871}
872
873static void rt2400pci_toggle_irq(struct rt2x00_dev *rt2x00dev,
874 enum dev_state state)
875{
876 int mask = (state == STATE_RADIO_IRQ_OFF);
877 u32 reg;
878
879 /*
880 * When interrupts are being enabled, the interrupt registers
881 * should clear the register to assure a clean state.
882 */
883 if (state == STATE_RADIO_IRQ_ON) {
884 rt2x00pci_register_read(rt2x00dev, CSR7, &reg);
885 rt2x00pci_register_write(rt2x00dev, CSR7, reg);
886 }
887
888 /*
889 * Only toggle the interrupts bits we are going to use.
890 * Non-checked interrupt bits are disabled by default.
891 */
892 rt2x00pci_register_read(rt2x00dev, CSR8, &reg);
893 rt2x00_set_field32(&reg, CSR8_TBCN_EXPIRE, mask);
894 rt2x00_set_field32(&reg, CSR8_TXDONE_TXRING, mask);
895 rt2x00_set_field32(&reg, CSR8_TXDONE_ATIMRING, mask);
896 rt2x00_set_field32(&reg, CSR8_TXDONE_PRIORING, mask);
897 rt2x00_set_field32(&reg, CSR8_RXDONE, mask);
898 rt2x00pci_register_write(rt2x00dev, CSR8, reg);
899}
900
901static int rt2400pci_enable_radio(struct rt2x00_dev *rt2x00dev)
902{
903 /*
904 * Initialize all registers.
905 */
2b08da3f
ID		 906 if (unlikely(rt2400pci_init_queues(rt2x00dev) ||
907 rt2400pci_init_registers(rt2x00dev) ||
908 rt2400pci_init_bbp(rt2x00dev)))
95ea3627 909 return -EIO;
95ea3627 910
95ea3627
ID		 911 return 0;
912}
913
914static void rt2400pci_disable_radio(struct rt2x00_dev *rt2x00dev)
915{
95ea3627 916 /*
a2c9b652 917 * Disable power
95ea3627 918 */
a2c9b652 919 rt2x00pci_register_write(rt2x00dev, PWRCSR0, 0);
95ea3627
ID		 920}
921
922static int rt2400pci_set_state(struct rt2x00_dev *rt2x00dev,
923 enum dev_state state)
924{
925 u32 reg;
926 unsigned int i;
927 char put_to_sleep;
928 char bbp_state;
929 char rf_state;
930
931 put_to_sleep = (state != STATE_AWAKE);
932
933 rt2x00pci_register_read(rt2x00dev, PWRCSR1, &reg);
934 rt2x00_set_field32(&reg, PWRCSR1_SET_STATE, 1);
935 rt2x00_set_field32(&reg, PWRCSR1_BBP_DESIRE_STATE, state);
936 rt2x00_set_field32(&reg, PWRCSR1_RF_DESIRE_STATE, state);
937 rt2x00_set_field32(&reg, PWRCSR1_PUT_TO_SLEEP, put_to_sleep);
938 rt2x00pci_register_write(rt2x00dev, PWRCSR1, reg);
939
940 /*
941 * Device is not guaranteed to be in the requested state yet.
942 * We must wait until the register indicates that the
943 * device has entered the correct state.
944 */
945 for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
946 rt2x00pci_register_read(rt2x00dev, PWRCSR1, &reg);
947 bbp_state = rt2x00_get_field32(reg, PWRCSR1_BBP_CURR_STATE);
948 rf_state = rt2x00_get_field32(reg, PWRCSR1_RF_CURR_STATE);
949 if (bbp_state == state && rf_state == state)
950 return 0;
951 msleep(10);
952 }
953
95ea3627
ID		 954 return -EBUSY;
955}
956
957static int rt2400pci_set_device_state(struct rt2x00_dev *rt2x00dev,
958 enum dev_state state)
959{
960 int retval = 0;
961
962 switch (state) {
963 case STATE_RADIO_ON:
964 retval = rt2400pci_enable_radio(rt2x00dev);
965 break;
966 case STATE_RADIO_OFF:
967 rt2400pci_disable_radio(rt2x00dev);
968 break;
969 case STATE_RADIO_RX_ON:
61667d8d 970 case STATE_RADIO_RX_ON_LINK:
95ea3627 971 case STATE_RADIO_RX_OFF:
61667d8d 972 case STATE_RADIO_RX_OFF_LINK:
2b08da3f
ID		 973 rt2400pci_toggle_rx(rt2x00dev, state);
974 break;
975 case STATE_RADIO_IRQ_ON:
976 case STATE_RADIO_IRQ_OFF:
977 rt2400pci_toggle_irq(rt2x00dev, state);
95ea3627
ID		 978 break;
979 case STATE_DEEP_SLEEP:
980 case STATE_SLEEP:
981 case STATE_STANDBY:
982 case STATE_AWAKE:
983 retval = rt2400pci_set_state(rt2x00dev, state);
984 break;
985 default:
986 retval = -ENOTSUPP;
987 break;
988 }
989
2b08da3f
ID		 990 if (unlikely(retval))
991 ERROR(rt2x00dev, "Device failed to enter state %d (%d).\n",
992 state, retval);
993
95ea3627
ID		 994 return retval;
995}
996
997/*
998 * TX descriptor initialization
999 */
1000static void rt2400pci_write_tx_desc(struct rt2x00_dev *rt2x00dev,
dd3193e1 1001 struct sk_buff *skb,
61486e0f 1002 struct txentry_desc *txdesc)
95ea3627 1003{
181d6902 1004 struct skb_frame_desc *skbdesc = get_skb_frame_desc(skb);
b8be63ff 1005 struct queue_entry_priv_pci *entry_priv = skbdesc->entry->priv_data;
dd3193e1 1006 __le32 *txd = skbdesc->desc;
95ea3627 1007 u32 word;
95ea3627
ID		 1008
1009 /*
1010 * Start writing the descriptor words.
1011 */
4de36fe5 1012 rt2x00_desc_read(entry_priv->desc, 1, &word);
c4da0048 1013 rt2x00_set_field32(&word, TXD_W1_BUFFER_ADDRESS, skbdesc->skb_dma);
4de36fe5
GW		 1014 rt2x00_desc_write(entry_priv->desc, 1, word);
1015
95ea3627 1016 rt2x00_desc_read(txd, 2, &word);
d56d453a
GW		 1017 rt2x00_set_field32(&word, TXD_W2_BUFFER_LENGTH, skb->len);
1018 rt2x00_set_field32(&word, TXD_W2_DATABYTE_COUNT, skb->len);
95ea3627
ID		 1019 rt2x00_desc_write(txd, 2, word);
1020
1021 rt2x00_desc_read(txd, 3, &word);
181d6902 1022 rt2x00_set_field32(&word, TXD_W3_PLCP_SIGNAL, txdesc->signal);
49da2605
ID		 1023 rt2x00_set_field32(&word, TXD_W3_PLCP_SIGNAL_REGNUM, 5);
1024 rt2x00_set_field32(&word, TXD_W3_PLCP_SIGNAL_BUSY, 1);
181d6902 1025 rt2x00_set_field32(&word, TXD_W3_PLCP_SERVICE, txdesc->service);
49da2605
ID		 1026 rt2x00_set_field32(&word, TXD_W3_PLCP_SERVICE_REGNUM, 6);
1027 rt2x00_set_field32(&word, TXD_W3_PLCP_SERVICE_BUSY, 1);
95ea3627
ID		 1028 rt2x00_desc_write(txd, 3, word);
1029
1030 rt2x00_desc_read(txd, 4, &word);
181d6902 1031 rt2x00_set_field32(&word, TXD_W4_PLCP_LENGTH_LOW, txdesc->length_low);
49da2605
ID		 1032 rt2x00_set_field32(&word, TXD_W3_PLCP_LENGTH_LOW_REGNUM, 8);
1033 rt2x00_set_field32(&word, TXD_W3_PLCP_LENGTH_LOW_BUSY, 1);
181d6902 1034 rt2x00_set_field32(&word, TXD_W4_PLCP_LENGTH_HIGH, txdesc->length_high);
49da2605
ID		 1035 rt2x00_set_field32(&word, TXD_W3_PLCP_LENGTH_HIGH_REGNUM, 7);
1036 rt2x00_set_field32(&word, TXD_W3_PLCP_LENGTH_HIGH_BUSY, 1);
95ea3627
ID		 1037 rt2x00_desc_write(txd, 4, word);
1038
1039 rt2x00_desc_read(txd, 0, &word);
1040 rt2x00_set_field32(&word, TXD_W0_OWNER_NIC, 1);
1041 rt2x00_set_field32(&word, TXD_W0_VALID, 1);
1042 rt2x00_set_field32(&word, TXD_W0_MORE_FRAG,
181d6902 1043 test_bit(ENTRY_TXD_MORE_FRAG, &txdesc->flags));
95ea3627 1044 rt2x00_set_field32(&word, TXD_W0_ACK,
181d6902 1045 test_bit(ENTRY_TXD_ACK, &txdesc->flags));
95ea3627 1046 rt2x00_set_field32(&word, TXD_W0_TIMESTAMP,
181d6902 1047 test_bit(ENTRY_TXD_REQ_TIMESTAMP, &txdesc->flags));
95ea3627 1048 rt2x00_set_field32(&word, TXD_W0_RTS,
181d6902
ID		 1049 test_bit(ENTRY_TXD_RTS_FRAME, &txdesc->flags));
1050 rt2x00_set_field32(&word, TXD_W0_IFS, txdesc->ifs);
95ea3627 1051 rt2x00_set_field32(&word, TXD_W0_RETRY_MODE,
aade5102 1052 test_bit(ENTRY_TXD_RETRY_MODE, &txdesc->flags));
95ea3627
ID		 1053 rt2x00_desc_write(txd, 0, word);
1054}
1055
1056/*
1057 * TX data initialization
1058 */
bd88a781
ID		 1059static void rt2400pci_write_beacon(struct queue_entry *entry)
1060{
1061 struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
1062 struct queue_entry_priv_pci *entry_priv = entry->priv_data;
1063 struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
1064 u32 word;
1065 u32 reg;
1066
1067 /*
1068 * Disable beaconing while we are reloading the beacon data,
1069 * otherwise we might be sending out invalid data.
1070 */
1071 rt2x00pci_register_read(rt2x00dev, CSR14, &reg);
1072 rt2x00_set_field32(&reg, CSR14_TSF_COUNT, 0);
1073 rt2x00_set_field32(&reg, CSR14_TBCN, 0);
1074 rt2x00_set_field32(&reg, CSR14_BEACON_GEN, 0);
1075 rt2x00pci_register_write(rt2x00dev, CSR14, reg);
1076
1077 /*
1078 * Replace rt2x00lib allocated descriptor with the
1079 * pointer to the _real_ hardware descriptor.
1080 * After that, map the beacon to DMA and update the
1081 * descriptor.
1082 */
1083 memcpy(entry_priv->desc, skbdesc->desc, skbdesc->desc_len);
1084 skbdesc->desc = entry_priv->desc;
1085
1086 rt2x00queue_map_txskb(rt2x00dev, entry->skb);
1087
1088 rt2x00_desc_read(entry_priv->desc, 1, &word);
1089 rt2x00_set_field32(&word, TXD_W1_BUFFER_ADDRESS, skbdesc->skb_dma);
1090 rt2x00_desc_write(entry_priv->desc, 1, word);
1091}
1092
95ea3627 1093static void rt2400pci_kick_tx_queue(struct rt2x00_dev *rt2x00dev,
e58c6aca 1094 const enum data_queue_qid queue)
95ea3627
ID		 1095{
1096 u32 reg;
1097
e58c6aca 1098 if (queue == QID_BEACON) {
95ea3627
ID		 1099 rt2x00pci_register_read(rt2x00dev, CSR14, &reg);
1100 if (!rt2x00_get_field32(reg, CSR14_BEACON_GEN)) {
8af244cc
ID		 1101 rt2x00_set_field32(&reg, CSR14_TSF_COUNT, 1);
1102 rt2x00_set_field32(&reg, CSR14_TBCN, 1);
95ea3627
ID		 1103 rt2x00_set_field32(&reg, CSR14_BEACON_GEN, 1);
1104 rt2x00pci_register_write(rt2x00dev, CSR14, reg);
1105 }
1106 return;
1107 }
1108
1109 rt2x00pci_register_read(rt2x00dev, TXCSR0, &reg);
e58c6aca
ID		 1110 rt2x00_set_field32(&reg, TXCSR0_KICK_PRIO, (queue == QID_AC_BE));
1111 rt2x00_set_field32(&reg, TXCSR0_KICK_TX, (queue == QID_AC_BK));
1112 rt2x00_set_field32(&reg, TXCSR0_KICK_ATIM, (queue == QID_ATIM));
95ea3627
ID		 1113 rt2x00pci_register_write(rt2x00dev, TXCSR0, reg);
1114}
1115
a2c9b652
ID		 1116static void rt2400pci_kill_tx_queue(struct rt2x00_dev *rt2x00dev,
1117 const enum data_queue_qid qid)
1118{
1119 u32 reg;
1120
1121 if (qid == QID_BEACON) {
1122 rt2x00pci_register_write(rt2x00dev, CSR14, 0);
1123 } else {
1124 rt2x00pci_register_read(rt2x00dev, TXCSR0, &reg);
1125 rt2x00_set_field32(&reg, TXCSR0_ABORT, 1);
1126 rt2x00pci_register_write(rt2x00dev, TXCSR0, reg);
1127 }
1128}
1129
95ea3627
ID		 1130/*
1131 * RX control handlers
1132 */
181d6902
ID		 1133static void rt2400pci_fill_rxdone(struct queue_entry *entry,
1134 struct rxdone_entry_desc *rxdesc)
95ea3627 1135{
ae73e58e 1136 struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
b8be63ff 1137 struct queue_entry_priv_pci *entry_priv = entry->priv_data;
95ea3627
ID		 1138 u32 word0;
1139 u32 word2;
89993890 1140 u32 word3;
ae73e58e
ID		 1141 u32 word4;
1142 u64 tsf;
1143 u32 rx_low;
1144 u32 rx_high;
95ea3627 1145
b8be63ff
ID		 1146 rt2x00_desc_read(entry_priv->desc, 0, &word0);
1147 rt2x00_desc_read(entry_priv->desc, 2, &word2);
1148 rt2x00_desc_read(entry_priv->desc, 3, &word3);
ae73e58e 1149 rt2x00_desc_read(entry_priv->desc, 4, &word4);
95ea3627 1150
4150c572 1151 if (rt2x00_get_field32(word0, RXD_W0_CRC_ERROR))
181d6902 1152 rxdesc->flags |= RX_FLAG_FAILED_FCS_CRC;
4150c572 1153 if (rt2x00_get_field32(word0, RXD_W0_PHYSICAL_ERROR))
181d6902 1154 rxdesc->flags |= RX_FLAG_FAILED_PLCP_CRC;
95ea3627 1155
ae73e58e
ID		 1156 /*
1157 * We only get the lower 32bits from the timestamp,
1158 * to get the full 64bits we must complement it with
1159 * the timestamp from get_tsf().
1160 * Note that when a wraparound of the lower 32bits
1161 * has occurred between the frame arrival and the get_tsf()
1162 * call, we must decrease the higher 32bits with 1 to get
1163 * to correct value.
1164 */
1165 tsf = rt2x00dev->ops->hw->get_tsf(rt2x00dev->hw);
1166 rx_low = rt2x00_get_field32(word4, RXD_W4_RX_END_TIME);
1167 rx_high = upper_32_bits(tsf);
1168
1169 if ((u32)tsf <= rx_low)
1170 rx_high--;
1171
95ea3627
ID		 1172 /*
1173 * Obtain the status about this packet.
8ed09854
ID		 1174 * The signal is the PLCP value, and needs to be stripped
1175 * of the preamble bit (0x08).
95ea3627 1176 */
ae73e58e 1177 rxdesc->timestamp = ((u64)rx_high << 32) | rx_low;
8ed09854 1178 rxdesc->signal = rt2x00_get_field32(word2, RXD_W2_SIGNAL) & ~0x08;
89993890 1179 rxdesc->rssi = rt2x00_get_field32(word2, RXD_W3_RSSI) -
181d6902 1180 entry->queue->rt2x00dev->rssi_offset;
181d6902 1181 rxdesc->size = rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT);
19d30e02 1182
dec13b6b 1183 rxdesc->dev_flags |= RXDONE_SIGNAL_PLCP;
19d30e02
ID		 1184 if (rt2x00_get_field32(word0, RXD_W0_MY_BSS))
1185 rxdesc->dev_flags |= RXDONE_MY_BSS;
95ea3627
ID		 1186}
1187
1188/*
1189 * Interrupt functions.
1190 */
181d6902 1191static void rt2400pci_txdone(struct rt2x00_dev *rt2x00dev,
e58c6aca 1192 const enum data_queue_qid queue_idx)
95ea3627 1193{
181d6902 1194 struct data_queue *queue = rt2x00queue_get_queue(rt2x00dev, queue_idx);
b8be63ff 1195 struct queue_entry_priv_pci *entry_priv;
181d6902
ID		 1196 struct queue_entry *entry;
1197 struct txdone_entry_desc txdesc;
95ea3627 1198 u32 word;
95ea3627 1199
181d6902
ID		 1200 while (!rt2x00queue_empty(queue)) {
1201 entry = rt2x00queue_get_entry(queue, Q_INDEX_DONE);
b8be63ff
ID		 1202 entry_priv = entry->priv_data;
1203 rt2x00_desc_read(entry_priv->desc, 0, &word);
95ea3627
ID		 1204
1205 if (rt2x00_get_field32(word, TXD_W0_OWNER_NIC) ||
1206 !rt2x00_get_field32(word, TXD_W0_VALID))
1207 break;
1208
1209 /*
1210 * Obtain the status about this packet.
1211 */
fb55f4d1
ID		 1212 txdesc.flags = 0;
1213 switch (rt2x00_get_field32(word, TXD_W0_RESULT)) {
1214 case 0: /* Success */
1215 case 1: /* Success with retry */
1216 __set_bit(TXDONE_SUCCESS, &txdesc.flags);
1217 break;
1218 case 2: /* Failure, excessive retries */
1219 __set_bit(TXDONE_EXCESSIVE_RETRY, &txdesc.flags);
1220 /* Don't break, this is a failed frame! */
1221 default: /* Failure */
1222 __set_bit(TXDONE_FAILURE, &txdesc.flags);
1223 }
181d6902 1224 txdesc.retry = rt2x00_get_field32(word, TXD_W0_RETRY_COUNT);
95ea3627 1225
d74f5ba4 1226 rt2x00lib_txdone(entry, &txdesc);
95ea3627 1227 }
95ea3627
ID		 1228}
1229
1230static irqreturn_t rt2400pci_interrupt(int irq, void *dev_instance)
1231{
1232 struct rt2x00_dev *rt2x00dev = dev_instance;
1233 u32 reg;
1234
1235 /*
1236 * Get the interrupt sources & saved to local variable.
1237 * Write register value back to clear pending interrupts.
1238 */
1239 rt2x00pci_register_read(rt2x00dev, CSR7, &reg);
1240 rt2x00pci_register_write(rt2x00dev, CSR7, reg);
1241
1242 if (!reg)
1243 return IRQ_NONE;
1244
0262ab0d 1245 if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
95ea3627
ID		 1246 return IRQ_HANDLED;
1247
1248 /*
1249 * Handle interrupts, walk through all bits
1250 * and run the tasks, the bits are checked in order of
1251 * priority.
1252 */
1253
1254 /*
1255 * 1 - Beacon timer expired interrupt.
1256 */
1257 if (rt2x00_get_field32(reg, CSR7_TBCN_EXPIRE))
1258 rt2x00lib_beacondone(rt2x00dev);
1259
1260 /*
1261 * 2 - Rx ring done interrupt.
1262 */
1263 if (rt2x00_get_field32(reg, CSR7_RXDONE))
1264 rt2x00pci_rxdone(rt2x00dev);
1265
1266 /*
1267 * 3 - Atim ring transmit done interrupt.
1268 */
1269 if (rt2x00_get_field32(reg, CSR7_TXDONE_ATIMRING))
e58c6aca 1270 rt2400pci_txdone(rt2x00dev, QID_ATIM);
95ea3627
ID		 1271
1272 /*
1273 * 4 - Priority ring transmit done interrupt.
1274 */
1275 if (rt2x00_get_field32(reg, CSR7_TXDONE_PRIORING))
e58c6aca 1276 rt2400pci_txdone(rt2x00dev, QID_AC_BE);
95ea3627
ID		 1277
1278 /*
1279 * 5 - Tx ring transmit done interrupt.
1280 */
1281 if (rt2x00_get_field32(reg, CSR7_TXDONE_TXRING))
e58c6aca 1282 rt2400pci_txdone(rt2x00dev, QID_AC_BK);
95ea3627
ID		 1283
1284 return IRQ_HANDLED;
1285}
1286
1287/*
1288 * Device probe functions.
1289 */
1290static int rt2400pci_validate_eeprom(struct rt2x00_dev *rt2x00dev)
1291{
1292 struct eeprom_93cx6 eeprom;
1293 u32 reg;
1294 u16 word;
1295 u8 *mac;
1296
1297 rt2x00pci_register_read(rt2x00dev, CSR21, &reg);
1298
1299 eeprom.data = rt2x00dev;
1300 eeprom.register_read = rt2400pci_eepromregister_read;
1301 eeprom.register_write = rt2400pci_eepromregister_write;
1302 eeprom.width = rt2x00_get_field32(reg, CSR21_TYPE_93C46) ?
1303 PCI_EEPROM_WIDTH_93C46 : PCI_EEPROM_WIDTH_93C66;
1304 eeprom.reg_data_in = 0;
1305 eeprom.reg_data_out = 0;
1306 eeprom.reg_data_clock = 0;
1307 eeprom.reg_chip_select = 0;
1308
1309 eeprom_93cx6_multiread(&eeprom, EEPROM_BASE, rt2x00dev->eeprom,
1310 EEPROM_SIZE / sizeof(u16));
1311
1312 /*
1313 * Start validation of the data that has been read.
1314 */
1315 mac = rt2x00_eeprom_addr(rt2x00dev, EEPROM_MAC_ADDR_0);
1316 if (!is_valid_ether_addr(mac)) {
1317 random_ether_addr(mac);
e174961c 1318 EEPROM(rt2x00dev, "MAC: %pM\n", mac);
95ea3627
ID		 1319 }
1320
1321 rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &word);
1322 if (word == 0xffff) {
1323 ERROR(rt2x00dev, "Invalid EEPROM data detected.\n");
1324 return -EINVAL;
1325 }
1326
1327 return 0;
1328}
1329
1330static int rt2400pci_init_eeprom(struct rt2x00_dev *rt2x00dev)
1331{
1332 u32 reg;
1333 u16 value;
1334 u16 eeprom;
1335
1336 /*
1337 * Read EEPROM word for configuration.
1338 */
1339 rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &eeprom);
1340
1341 /*
1342 * Identify RF chipset.
1343 */
1344 value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RF_TYPE);
1345 rt2x00pci_register_read(rt2x00dev, CSR0, &reg);
440ddada 1346 rt2x00_set_chip_rf(rt2x00dev, value, reg);
95ea3627
ID		 1347
1348 if (!rt2x00_rf(&rt2x00dev->chip, RF2420) &&
1349 !rt2x00_rf(&rt2x00dev->chip, RF2421)) {
1350 ERROR(rt2x00dev, "Invalid RF chipset detected.\n");
1351 return -ENODEV;
1352 }
1353
1354 /*
1355 * Identify default antenna configuration.
1356 */
addc81bd 1357 rt2x00dev->default_ant.tx =
95ea3627 1358 rt2x00_get_field16(eeprom, EEPROM_ANTENNA_TX_DEFAULT);
addc81bd 1359 rt2x00dev->default_ant.rx =
95ea3627
ID		 1360 rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RX_DEFAULT);
1361
addc81bd
ID		 1362 /*
1363 * When the eeprom indicates SW_DIVERSITY use HW_DIVERSITY instead.
1364 * I am not 100% sure about this, but the legacy drivers do not
1365 * indicate antenna swapping in software is required when
1366 * diversity is enabled.
1367 */
1368 if (rt2x00dev->default_ant.tx == ANTENNA_SW_DIVERSITY)
1369 rt2x00dev->default_ant.tx = ANTENNA_HW_DIVERSITY;
1370 if (rt2x00dev->default_ant.rx == ANTENNA_SW_DIVERSITY)
1371 rt2x00dev->default_ant.rx = ANTENNA_HW_DIVERSITY;
1372
95ea3627
ID		 1373 /*
1374 * Store led mode, for correct led behaviour.
1375 */
771fd565 1376#ifdef CONFIG_RT2X00_LIB_LEDS
a9450b70
ID		 1377 value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_LED_MODE);
1378
475433be 1379 rt2400pci_init_led(rt2x00dev, &rt2x00dev->led_radio, LED_TYPE_RADIO);
3d3e451f
ID		 1380 if (value == LED_MODE_TXRX_ACTIVITY ||
1381 value == LED_MODE_DEFAULT ||
1382 value == LED_MODE_ASUS)
475433be
ID		 1383 rt2400pci_init_led(rt2x00dev, &rt2x00dev->led_qual,
1384 LED_TYPE_ACTIVITY);
771fd565 1385#endif /* CONFIG_RT2X00_LIB_LEDS */
95ea3627
ID		 1386
1387 /*
1388 * Detect if this device has an hardware controlled radio.
1389 */
1390 if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_HARDWARE_RADIO))
066cb637 1391 __set_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags);
95ea3627
ID		 1392
1393 /*
1394 * Check if the BBP tuning should be enabled.
1395 */
1396 if (!rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RX_AGCVGC_TUNING))
1397 __set_bit(CONFIG_DISABLE_LINK_TUNING, &rt2x00dev->flags);
1398
1399 return 0;
1400}
1401
1402/*
1403 * RF value list for RF2420 & RF2421
1404 * Supports: 2.4 GHz
1405 */
8c5e7a5f 1406static const struct rf_channel rf_vals_b[] = {
95ea3627
ID		 1407 { 1, 0x00022058, 0x000c1fda, 0x00000101, 0 },
1408 { 2, 0x00022058, 0x000c1fee, 0x00000101, 0 },
1409 { 3, 0x00022058, 0x000c2002, 0x00000101, 0 },
1410 { 4, 0x00022058, 0x000c2016, 0x00000101, 0 },
1411 { 5, 0x00022058, 0x000c202a, 0x00000101, 0 },
1412 { 6, 0x00022058, 0x000c203e, 0x00000101, 0 },
1413 { 7, 0x00022058, 0x000c2052, 0x00000101, 0 },
1414 { 8, 0x00022058, 0x000c2066, 0x00000101, 0 },
1415 { 9, 0x00022058, 0x000c207a, 0x00000101, 0 },
1416 { 10, 0x00022058, 0x000c208e, 0x00000101, 0 },
1417 { 11, 0x00022058, 0x000c20a2, 0x00000101, 0 },
1418 { 12, 0x00022058, 0x000c20b6, 0x00000101, 0 },
1419 { 13, 0x00022058, 0x000c20ca, 0x00000101, 0 },
1420 { 14, 0x00022058, 0x000c20fa, 0x00000101, 0 },
1421};
1422
8c5e7a5f 1423static int rt2400pci_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
95ea3627
ID		 1424{
1425 struct hw_mode_spec *spec = &rt2x00dev->spec;
8c5e7a5f
ID		 1426 struct channel_info *info;
1427 char *tx_power;
95ea3627
ID		 1428 unsigned int i;
1429
1430 /*
1431 * Initialize all hw fields.
1432 */
566bfe5a 1433 rt2x00dev->hw->flags = IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
4be8c387
JB		 1434 IEEE80211_HW_SIGNAL_DBM |
1435 IEEE80211_HW_SUPPORTS_PS |
1436 IEEE80211_HW_PS_NULLFUNC_STACK;
95ea3627 1437 rt2x00dev->hw->extra_tx_headroom = 0;
95ea3627 1438
14a3bf89 1439 SET_IEEE80211_DEV(rt2x00dev->hw, rt2x00dev->dev);
95ea3627
ID		 1440 SET_IEEE80211_PERM_ADDR(rt2x00dev->hw,
1441 rt2x00_eeprom_addr(rt2x00dev,
1442 EEPROM_MAC_ADDR_0));
1443
95ea3627
ID		 1444 /*
1445 * Initialize hw_mode information.
1446 */
31562e80
ID		 1447 spec->supported_bands = SUPPORT_BAND_2GHZ;
1448 spec->supported_rates = SUPPORT_RATE_CCK;
95ea3627 1449
8c5e7a5f
ID		 1450 spec->num_channels = ARRAY_SIZE(rf_vals_b);
1451 spec->channels = rf_vals_b;
1452
1453 /*
1454 * Create channel information array
1455 */
1456 info = kzalloc(spec->num_channels * sizeof(*info), GFP_KERNEL);
1457 if (!info)
1458 return -ENOMEM;
1459
1460 spec->channels_info = info;
1461
1462 tx_power = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_START);
1463 for (i = 0; i < 14; i++)
1464 info[i].tx_power1 = TXPOWER_FROM_DEV(tx_power[i]);
1465
1466 return 0;
95ea3627
ID		 1467}
1468
1469static int rt2400pci_probe_hw(struct rt2x00_dev *rt2x00dev)
1470{
1471 int retval;
1472
1473 /*
1474 * Allocate eeprom data.
1475 */
1476 retval = rt2400pci_validate_eeprom(rt2x00dev);
1477 if (retval)
1478 return retval;
1479
1480 retval = rt2400pci_init_eeprom(rt2x00dev);
1481 if (retval)
1482 return retval;
1483
1484 /*
1485 * Initialize hw specifications.
1486 */
8c5e7a5f
ID		 1487 retval = rt2400pci_probe_hw_mode(rt2x00dev);
1488 if (retval)
1489 return retval;
95ea3627
ID		 1490
1491 /*
c4da0048 1492 * This device requires the atim queue and DMA-mapped skbs.
95ea3627 1493 */
181d6902 1494 __set_bit(DRIVER_REQUIRE_ATIM_QUEUE, &rt2x00dev->flags);
c4da0048 1495 __set_bit(DRIVER_REQUIRE_DMA, &rt2x00dev->flags);
95ea3627
ID		 1496
1497 /*
1498 * Set the rssi offset.
1499 */
1500 rt2x00dev->rssi_offset = DEFAULT_RSSI_OFFSET;
1501
1502 return 0;
1503}
1504
1505/*
1506 * IEEE80211 stack callback functions.
1507 */
e100bb64 1508static int rt2400pci_conf_tx(struct ieee80211_hw *hw, u16 queue,
95ea3627
ID		 1509 const struct ieee80211_tx_queue_params *params)
1510{
1511 struct rt2x00_dev *rt2x00dev = hw->priv;
1512
1513 /*
1514 * We don't support variating cw_min and cw_max variables
1515 * per queue. So by default we only configure the TX queue,
1516 * and ignore all other configurations.
1517 */
e100bb64 1518 if (queue != 0)
95ea3627
ID		 1519 return -EINVAL;
1520
1521 if (rt2x00mac_conf_tx(hw, queue, params))
1522 return -EINVAL;
1523
1524 /*
1525 * Write configuration to register.
1526 */
181d6902
ID		 1527 rt2400pci_config_cw(rt2x00dev,
1528 rt2x00dev->tx->cw_min, rt2x00dev->tx->cw_max);
95ea3627
ID		 1529
1530 return 0;
1531}
1532
1533static u64 rt2400pci_get_tsf(struct ieee80211_hw *hw)
1534{
1535 struct rt2x00_dev *rt2x00dev = hw->priv;
1536 u64 tsf;
1537 u32 reg;
1538
1539 rt2x00pci_register_read(rt2x00dev, CSR17, &reg);
1540 tsf = (u64) rt2x00_get_field32(reg, CSR17_HIGH_TSFTIMER) << 32;
1541 rt2x00pci_register_read(rt2x00dev, CSR16, &reg);
1542 tsf |= rt2x00_get_field32(reg, CSR16_LOW_TSFTIMER);
1543
1544 return tsf;
1545}
1546
95ea3627
ID		 1547static int rt2400pci_tx_last_beacon(struct ieee80211_hw *hw)
1548{
1549 struct rt2x00_dev *rt2x00dev = hw->priv;
1550 u32 reg;
1551
1552 rt2x00pci_register_read(rt2x00dev, CSR15, &reg);
1553 return rt2x00_get_field32(reg, CSR15_BEACON_SENT);
1554}
1555
1556static const struct ieee80211_ops rt2400pci_mac80211_ops = {
1557 .tx = rt2x00mac_tx,
4150c572
JB		 1558 .start = rt2x00mac_start,
1559 .stop = rt2x00mac_stop,
95ea3627
ID		 1560 .add_interface = rt2x00mac_add_interface,
1561 .remove_interface = rt2x00mac_remove_interface,
1562 .config = rt2x00mac_config,
3a643d24 1563 .configure_filter = rt2x00mac_configure_filter,
930c06f2 1564 .set_tim = rt2x00mac_set_tim,
95ea3627 1565 .get_stats = rt2x00mac_get_stats,
471b3efd 1566 .bss_info_changed = rt2x00mac_bss_info_changed,
95ea3627
ID		 1567 .conf_tx = rt2400pci_conf_tx,
1568 .get_tx_stats = rt2x00mac_get_tx_stats,
1569 .get_tsf = rt2400pci_get_tsf,
95ea3627 1570 .tx_last_beacon = rt2400pci_tx_last_beacon,
e47a5cdd 1571 .rfkill_poll = rt2x00mac_rfkill_poll,
95ea3627
ID		 1572};
1573
1574static const struct rt2x00lib_ops rt2400pci_rt2x00_ops = {
1575 .irq_handler = rt2400pci_interrupt,
1576 .probe_hw = rt2400pci_probe_hw,
1577 .initialize = rt2x00pci_initialize,
1578 .uninitialize = rt2x00pci_uninitialize,
798b7adb
ID		 1579 .get_entry_state = rt2400pci_get_entry_state,
1580 .clear_entry = rt2400pci_clear_entry,
95ea3627 1581 .set_device_state = rt2400pci_set_device_state,
95ea3627 1582 .rfkill_poll = rt2400pci_rfkill_poll,
95ea3627
ID		 1583 .link_stats = rt2400pci_link_stats,
1584 .reset_tuner = rt2400pci_reset_tuner,
1585 .link_tuner = rt2400pci_link_tuner,
1586 .write_tx_desc = rt2400pci_write_tx_desc,
1587 .write_tx_data = rt2x00pci_write_tx_data,
bd88a781 1588 .write_beacon = rt2400pci_write_beacon,
95ea3627 1589 .kick_tx_queue = rt2400pci_kick_tx_queue,
a2c9b652 1590 .kill_tx_queue = rt2400pci_kill_tx_queue,
95ea3627 1591 .fill_rxdone = rt2400pci_fill_rxdone,
3a643d24 1592 .config_filter = rt2400pci_config_filter,
6bb40dd1 1593 .config_intf = rt2400pci_config_intf,
72810379 1594 .config_erp = rt2400pci_config_erp,
e4ea1c40 1595 .config_ant = rt2400pci_config_ant,
95ea3627
ID		 1596 .config = rt2400pci_config,
1597};
1598
181d6902
ID		 1599static const struct data_queue_desc rt2400pci_queue_rx = {
1600 .entry_num = RX_ENTRIES,
1601 .data_size = DATA_FRAME_SIZE,
1602 .desc_size = RXD_DESC_SIZE,
b8be63ff 1603 .priv_size = sizeof(struct queue_entry_priv_pci),
181d6902
ID		 1604};
1605
1606static const struct data_queue_desc rt2400pci_queue_tx = {
1607 .entry_num = TX_ENTRIES,
1608 .data_size = DATA_FRAME_SIZE,
1609 .desc_size = TXD_DESC_SIZE,
b8be63ff 1610 .priv_size = sizeof(struct queue_entry_priv_pci),
181d6902
ID		 1611};
1612
1613static const struct data_queue_desc rt2400pci_queue_bcn = {
1614 .entry_num = BEACON_ENTRIES,
1615 .data_size = MGMT_FRAME_SIZE,
1616 .desc_size = TXD_DESC_SIZE,
b8be63ff 1617 .priv_size = sizeof(struct queue_entry_priv_pci),
181d6902
ID		 1618};
1619
1620static const struct data_queue_desc rt2400pci_queue_atim = {
1621 .entry_num = ATIM_ENTRIES,
1622 .data_size = DATA_FRAME_SIZE,
1623 .desc_size = TXD_DESC_SIZE,
b8be63ff 1624 .priv_size = sizeof(struct queue_entry_priv_pci),
181d6902
ID		 1625};
1626
95ea3627 1627static const struct rt2x00_ops rt2400pci_ops = {
2360157c 1628 .name = KBUILD_MODNAME,
6bb40dd1
ID		 1629 .max_sta_intf = 1,
1630 .max_ap_intf = 1,
95ea3627
ID		 1631 .eeprom_size = EEPROM_SIZE,
1632 .rf_size = RF_SIZE,
61448f88 1633 .tx_queues = NUM_TX_QUEUES,
181d6902
ID		 1634 .rx = &rt2400pci_queue_rx,
1635 .tx = &rt2400pci_queue_tx,
1636 .bcn = &rt2400pci_queue_bcn,
1637 .atim = &rt2400pci_queue_atim,
95ea3627
ID		 1638 .lib = &rt2400pci_rt2x00_ops,
1639 .hw = &rt2400pci_mac80211_ops,
1640#ifdef CONFIG_RT2X00_LIB_DEBUGFS
1641 .debugfs = &rt2400pci_rt2x00debug,
1642#endif /* CONFIG_RT2X00_LIB_DEBUGFS */
1643};
1644
1645/*
1646 * RT2400pci module information.
1647 */
1648static struct pci_device_id rt2400pci_device_table[] = {
1649 { PCI_DEVICE(0x1814, 0x0101), PCI_DEVICE_DATA(&rt2400pci_ops) },
1650 { 0, }
1651};
1652
1653MODULE_AUTHOR(DRV_PROJECT);
1654MODULE_VERSION(DRV_VERSION);
1655MODULE_DESCRIPTION("Ralink RT2400 PCI & PCMCIA Wireless LAN driver.");
1656MODULE_SUPPORTED_DEVICE("Ralink RT2460 PCI & PCMCIA chipset based cards");
1657MODULE_DEVICE_TABLE(pci, rt2400pci_device_table);
1658MODULE_LICENSE("GPL");
1659
1660static struct pci_driver rt2400pci_driver = {
2360157c 1661 .name = KBUILD_MODNAME,
95ea3627
ID		 1662 .id_table = rt2400pci_device_table,
1663 .probe = rt2x00pci_probe,
1664 .remove = __devexit_p(rt2x00pci_remove),
1665 .suspend = rt2x00pci_suspend,
1666 .resume = rt2x00pci_resume,
1667};
1668
1669static int __init rt2400pci_init(void)
1670{
1671 return pci_register_driver(&rt2400pci_driver);
1672}
1673
1674static void __exit rt2400pci_exit(void)
1675{
1676 pci_unregister_driver(&rt2400pci_driver);
1677}
1678
1679module_init(rt2400pci_init);
1680module_exit(rt2400pci_exit);
Linux kernel - Deliverables
This page took 0.621756 seconds and 5 git commands to generate.