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, see <http://www.gnu.org/licenses/>.
17 */
18
19 /*
20 Module: rt2500pci
21 Abstract: rt2500pci device specific routines.
22 Supported chipsets: RT2560.
23 */
24
25 #include <linux/delay.h>
26 #include <linux/etherdevice.h>
27 #include <linux/kernel.h>
28 #include <linux/module.h>
29 #include <linux/pci.h>
30 #include <linux/eeprom_93cx6.h>
31 #include <linux/slab.h>
32
33 #include "rt2x00.h"
34 #include "rt2x00mmio.h"
35 #include "rt2x00pci.h"
36 #include "rt2500pci.h"
37
38 /*
39 * Register access.
40 * All access to the CSR registers will go through the methods
41 * rt2x00mmio_register_read and rt2x00mmio_register_write.
42 * BBP and RF register require indirect register access,
43 * and use the CSR registers BBPCSR and RFCSR to achieve this.
44 * These indirect registers work with busy bits,
45 * and we will try maximal REGISTER_BUSY_COUNT times to access
46 * the register while taking a REGISTER_BUSY_DELAY us delay
47 * between each attampt. When the busy bit is still set at that time,
48 * the access attempt is considered to have failed,
49 * and we will print an error.
50 */
51 #define WAIT_FOR_BBP(__dev, __reg) \
52 rt2x00mmio_regbusy_read((__dev), BBPCSR, BBPCSR_BUSY, (__reg))
53 #define WAIT_FOR_RF(__dev, __reg) \
54 rt2x00mmio_regbusy_read((__dev), RFCSR, RFCSR_BUSY, (__reg))
55
rt2500pci_bbp_write(struct rt2x00_dev * rt2x00dev,const unsigned int word,const u8 value)56 static void rt2500pci_bbp_write(struct rt2x00_dev *rt2x00dev,
57 const unsigned int word, const u8 value)
58 {
59 u32 reg;
60
61 mutex_lock(&rt2x00dev->csr_mutex);
62
63 /*
64 * Wait until the BBP becomes available, afterwards we
65 * can safely write the new data into the register.
66 */
67 if (WAIT_FOR_BBP(rt2x00dev, ®)) {
68 reg = 0;
69 rt2x00_set_field32(®, BBPCSR_VALUE, value);
70 rt2x00_set_field32(®, BBPCSR_REGNUM, word);
71 rt2x00_set_field32(®, BBPCSR_BUSY, 1);
72 rt2x00_set_field32(®, BBPCSR_WRITE_CONTROL, 1);
73
74 rt2x00mmio_register_write(rt2x00dev, BBPCSR, reg);
75 }
76
77 mutex_unlock(&rt2x00dev->csr_mutex);
78 }
79
rt2500pci_bbp_read(struct rt2x00_dev * rt2x00dev,const unsigned int word)80 static u8 rt2500pci_bbp_read(struct rt2x00_dev *rt2x00dev,
81 const unsigned int word)
82 {
83 u32 reg;
84 u8 value;
85
86 mutex_lock(&rt2x00dev->csr_mutex);
87
88 /*
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.
95 */
96 if (WAIT_FOR_BBP(rt2x00dev, ®)) {
97 reg = 0;
98 rt2x00_set_field32(®, BBPCSR_REGNUM, word);
99 rt2x00_set_field32(®, BBPCSR_BUSY, 1);
100 rt2x00_set_field32(®, BBPCSR_WRITE_CONTROL, 0);
101
102 rt2x00mmio_register_write(rt2x00dev, BBPCSR, reg);
103
104 WAIT_FOR_BBP(rt2x00dev, ®);
105 }
106
107 value = rt2x00_get_field32(reg, BBPCSR_VALUE);
108
109 mutex_unlock(&rt2x00dev->csr_mutex);
110
111 return value;
112 }
113
rt2500pci_rf_write(struct rt2x00_dev * rt2x00dev,const unsigned int word,const u32 value)114 static void rt2500pci_rf_write(struct rt2x00_dev *rt2x00dev,
115 const unsigned int word, const u32 value)
116 {
117 u32 reg;
118
119 mutex_lock(&rt2x00dev->csr_mutex);
120
121 /*
122 * Wait until the RF becomes available, afterwards we
123 * can safely write the new data into the register.
124 */
125 if (WAIT_FOR_RF(rt2x00dev, ®)) {
126 reg = 0;
127 rt2x00_set_field32(®, RFCSR_VALUE, value);
128 rt2x00_set_field32(®, RFCSR_NUMBER_OF_BITS, 20);
129 rt2x00_set_field32(®, RFCSR_IF_SELECT, 0);
130 rt2x00_set_field32(®, RFCSR_BUSY, 1);
131
132 rt2x00mmio_register_write(rt2x00dev, RFCSR, reg);
133 rt2x00_rf_write(rt2x00dev, word, value);
134 }
135
136 mutex_unlock(&rt2x00dev->csr_mutex);
137 }
138
rt2500pci_eepromregister_read(struct eeprom_93cx6 * eeprom)139 static void rt2500pci_eepromregister_read(struct eeprom_93cx6 *eeprom)
140 {
141 struct rt2x00_dev *rt2x00dev = eeprom->data;
142 u32 reg;
143
144 reg = rt2x00mmio_register_read(rt2x00dev, CSR21);
145
146 eeprom->reg_data_in = !!rt2x00_get_field32(reg, CSR21_EEPROM_DATA_IN);
147 eeprom->reg_data_out = !!rt2x00_get_field32(reg, CSR21_EEPROM_DATA_OUT);
148 eeprom->reg_data_clock =
149 !!rt2x00_get_field32(reg, CSR21_EEPROM_DATA_CLOCK);
150 eeprom->reg_chip_select =
151 !!rt2x00_get_field32(reg, CSR21_EEPROM_CHIP_SELECT);
152 }
153
rt2500pci_eepromregister_write(struct eeprom_93cx6 * eeprom)154 static void rt2500pci_eepromregister_write(struct eeprom_93cx6 *eeprom)
155 {
156 struct rt2x00_dev *rt2x00dev = eeprom->data;
157 u32 reg = 0;
158
159 rt2x00_set_field32(®, CSR21_EEPROM_DATA_IN, !!eeprom->reg_data_in);
160 rt2x00_set_field32(®, CSR21_EEPROM_DATA_OUT, !!eeprom->reg_data_out);
161 rt2x00_set_field32(®, CSR21_EEPROM_DATA_CLOCK,
162 !!eeprom->reg_data_clock);
163 rt2x00_set_field32(®, CSR21_EEPROM_CHIP_SELECT,
164 !!eeprom->reg_chip_select);
165
166 rt2x00mmio_register_write(rt2x00dev, CSR21, reg);
167 }
168
169 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
170 static const struct rt2x00debug rt2500pci_rt2x00debug = {
171 .owner = THIS_MODULE,
172 .csr = {
173 .read = rt2x00mmio_register_read,
174 .write = rt2x00mmio_register_write,
175 .flags = RT2X00DEBUGFS_OFFSET,
176 .word_base = CSR_REG_BASE,
177 .word_size = sizeof(u32),
178 .word_count = CSR_REG_SIZE / sizeof(u32),
179 },
180 .eeprom = {
181 .read = rt2x00_eeprom_read,
182 .write = rt2x00_eeprom_write,
183 .word_base = EEPROM_BASE,
184 .word_size = sizeof(u16),
185 .word_count = EEPROM_SIZE / sizeof(u16),
186 },
187 .bbp = {
188 .read = rt2500pci_bbp_read,
189 .write = rt2500pci_bbp_write,
190 .word_base = BBP_BASE,
191 .word_size = sizeof(u8),
192 .word_count = BBP_SIZE / sizeof(u8),
193 },
194 .rf = {
195 .read = rt2x00_rf_read,
196 .write = rt2500pci_rf_write,
197 .word_base = RF_BASE,
198 .word_size = sizeof(u32),
199 .word_count = RF_SIZE / sizeof(u32),
200 },
201 };
202 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
203
rt2500pci_rfkill_poll(struct rt2x00_dev * rt2x00dev)204 static int rt2500pci_rfkill_poll(struct rt2x00_dev *rt2x00dev)
205 {
206 u32 reg;
207
208 reg = rt2x00mmio_register_read(rt2x00dev, GPIOCSR);
209 return rt2x00_get_field32(reg, GPIOCSR_VAL0);
210 }
211
212 #ifdef CONFIG_RT2X00_LIB_LEDS
rt2500pci_brightness_set(struct led_classdev * led_cdev,enum led_brightness brightness)213 static void rt2500pci_brightness_set(struct led_classdev *led_cdev,
214 enum led_brightness brightness)
215 {
216 struct rt2x00_led *led =
217 container_of(led_cdev, struct rt2x00_led, led_dev);
218 unsigned int enabled = brightness != LED_OFF;
219 u32 reg;
220
221 reg = rt2x00mmio_register_read(led->rt2x00dev, LEDCSR);
222
223 if (led->type == LED_TYPE_RADIO || led->type == LED_TYPE_ASSOC)
224 rt2x00_set_field32(®, LEDCSR_LINK, enabled);
225 else if (led->type == LED_TYPE_ACTIVITY)
226 rt2x00_set_field32(®, LEDCSR_ACTIVITY, enabled);
227
228 rt2x00mmio_register_write(led->rt2x00dev, LEDCSR, reg);
229 }
230
rt2500pci_blink_set(struct led_classdev * led_cdev,unsigned long * delay_on,unsigned long * delay_off)231 static int rt2500pci_blink_set(struct led_classdev *led_cdev,
232 unsigned long *delay_on,
233 unsigned long *delay_off)
234 {
235 struct rt2x00_led *led =
236 container_of(led_cdev, struct rt2x00_led, led_dev);
237 u32 reg;
238
239 reg = rt2x00mmio_register_read(led->rt2x00dev, LEDCSR);
240 rt2x00_set_field32(®, LEDCSR_ON_PERIOD, *delay_on);
241 rt2x00_set_field32(®, LEDCSR_OFF_PERIOD, *delay_off);
242 rt2x00mmio_register_write(led->rt2x00dev, LEDCSR, reg);
243
244 return 0;
245 }
246
rt2500pci_init_led(struct rt2x00_dev * rt2x00dev,struct rt2x00_led * led,enum led_type type)247 static void rt2500pci_init_led(struct rt2x00_dev *rt2x00dev,
248 struct rt2x00_led *led,
249 enum led_type type)
250 {
251 led->rt2x00dev = rt2x00dev;
252 led->type = type;
253 led->led_dev.brightness_set = rt2500pci_brightness_set;
254 led->led_dev.blink_set = rt2500pci_blink_set;
255 led->flags = LED_INITIALIZED;
256 }
257 #endif /* CONFIG_RT2X00_LIB_LEDS */
258
259 /*
260 * Configuration handlers.
261 */
rt2500pci_config_filter(struct rt2x00_dev * rt2x00dev,const unsigned int filter_flags)262 static void rt2500pci_config_filter(struct rt2x00_dev *rt2x00dev,
263 const unsigned int filter_flags)
264 {
265 u32 reg;
266
267 /*
268 * Start configuration steps.
269 * Note that the version error will always be dropped
270 * and broadcast frames will always be accepted since
271 * there is no filter for it at this time.
272 */
273 reg = rt2x00mmio_register_read(rt2x00dev, RXCSR0);
274 rt2x00_set_field32(®, RXCSR0_DROP_CRC,
275 !(filter_flags & FIF_FCSFAIL));
276 rt2x00_set_field32(®, RXCSR0_DROP_PHYSICAL,
277 !(filter_flags & FIF_PLCPFAIL));
278 rt2x00_set_field32(®, RXCSR0_DROP_CONTROL,
279 !(filter_flags & FIF_CONTROL));
280 rt2x00_set_field32(®, RXCSR0_DROP_NOT_TO_ME,
281 !test_bit(CONFIG_MONITORING, &rt2x00dev->flags));
282 rt2x00_set_field32(®, RXCSR0_DROP_TODS,
283 !test_bit(CONFIG_MONITORING, &rt2x00dev->flags) &&
284 !rt2x00dev->intf_ap_count);
285 rt2x00_set_field32(®, RXCSR0_DROP_VERSION_ERROR, 1);
286 rt2x00_set_field32(®, RXCSR0_DROP_MCAST,
287 !(filter_flags & FIF_ALLMULTI));
288 rt2x00_set_field32(®, RXCSR0_DROP_BCAST, 0);
289 rt2x00mmio_register_write(rt2x00dev, RXCSR0, reg);
290 }
291
rt2500pci_config_intf(struct rt2x00_dev * rt2x00dev,struct rt2x00_intf * intf,struct rt2x00intf_conf * conf,const unsigned int flags)292 static void rt2500pci_config_intf(struct rt2x00_dev *rt2x00dev,
293 struct rt2x00_intf *intf,
294 struct rt2x00intf_conf *conf,
295 const unsigned int flags)
296 {
297 struct data_queue *queue = rt2x00dev->bcn;
298 unsigned int bcn_preload;
299 u32 reg;
300
301 if (flags & CONFIG_UPDATE_TYPE) {
302 /*
303 * Enable beacon config
304 */
305 bcn_preload = PREAMBLE + GET_DURATION(IEEE80211_HEADER, 20);
306 reg = rt2x00mmio_register_read(rt2x00dev, BCNCSR1);
307 rt2x00_set_field32(®, BCNCSR1_PRELOAD, bcn_preload);
308 rt2x00_set_field32(®, BCNCSR1_BEACON_CWMIN, queue->cw_min);
309 rt2x00mmio_register_write(rt2x00dev, BCNCSR1, reg);
310
311 /*
312 * Enable synchronisation.
313 */
314 reg = rt2x00mmio_register_read(rt2x00dev, CSR14);
315 rt2x00_set_field32(®, CSR14_TSF_SYNC, conf->sync);
316 rt2x00mmio_register_write(rt2x00dev, CSR14, reg);
317 }
318
319 if (flags & CONFIG_UPDATE_MAC)
320 rt2x00mmio_register_multiwrite(rt2x00dev, CSR3,
321 conf->mac, sizeof(conf->mac));
322
323 if (flags & CONFIG_UPDATE_BSSID)
324 rt2x00mmio_register_multiwrite(rt2x00dev, CSR5,
325 conf->bssid, sizeof(conf->bssid));
326 }
327
rt2500pci_config_erp(struct rt2x00_dev * rt2x00dev,struct rt2x00lib_erp * erp,u32 changed)328 static void rt2500pci_config_erp(struct rt2x00_dev *rt2x00dev,
329 struct rt2x00lib_erp *erp,
330 u32 changed)
331 {
332 int preamble_mask;
333 u32 reg;
334
335 /*
336 * When short preamble is enabled, we should set bit 0x08
337 */
338 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
339 preamble_mask = erp->short_preamble << 3;
340
341 reg = rt2x00mmio_register_read(rt2x00dev, TXCSR1);
342 rt2x00_set_field32(®, TXCSR1_ACK_TIMEOUT, 0x162);
343 rt2x00_set_field32(®, TXCSR1_ACK_CONSUME_TIME, 0xa2);
344 rt2x00_set_field32(®, TXCSR1_TSF_OFFSET, IEEE80211_HEADER);
345 rt2x00_set_field32(®, TXCSR1_AUTORESPONDER, 1);
346 rt2x00mmio_register_write(rt2x00dev, TXCSR1, reg);
347
348 reg = rt2x00mmio_register_read(rt2x00dev, ARCSR2);
349 rt2x00_set_field32(®, ARCSR2_SIGNAL, 0x00);
350 rt2x00_set_field32(®, ARCSR2_SERVICE, 0x04);
351 rt2x00_set_field32(®, ARCSR2_LENGTH,
352 GET_DURATION(ACK_SIZE, 10));
353 rt2x00mmio_register_write(rt2x00dev, ARCSR2, reg);
354
355 reg = rt2x00mmio_register_read(rt2x00dev, ARCSR3);
356 rt2x00_set_field32(®, ARCSR3_SIGNAL, 0x01 | preamble_mask);
357 rt2x00_set_field32(®, ARCSR3_SERVICE, 0x04);
358 rt2x00_set_field32(®, ARCSR2_LENGTH,
359 GET_DURATION(ACK_SIZE, 20));
360 rt2x00mmio_register_write(rt2x00dev, ARCSR3, reg);
361
362 reg = rt2x00mmio_register_read(rt2x00dev, ARCSR4);
363 rt2x00_set_field32(®, ARCSR4_SIGNAL, 0x02 | preamble_mask);
364 rt2x00_set_field32(®, ARCSR4_SERVICE, 0x04);
365 rt2x00_set_field32(®, ARCSR2_LENGTH,
366 GET_DURATION(ACK_SIZE, 55));
367 rt2x00mmio_register_write(rt2x00dev, ARCSR4, reg);
368
369 reg = rt2x00mmio_register_read(rt2x00dev, ARCSR5);
370 rt2x00_set_field32(®, ARCSR5_SIGNAL, 0x03 | preamble_mask);
371 rt2x00_set_field32(®, ARCSR5_SERVICE, 0x84);
372 rt2x00_set_field32(®, ARCSR2_LENGTH,
373 GET_DURATION(ACK_SIZE, 110));
374 rt2x00mmio_register_write(rt2x00dev, ARCSR5, reg);
375 }
376
377 if (changed & BSS_CHANGED_BASIC_RATES)
378 rt2x00mmio_register_write(rt2x00dev, ARCSR1, erp->basic_rates);
379
380 if (changed & BSS_CHANGED_ERP_SLOT) {
381 reg = rt2x00mmio_register_read(rt2x00dev, CSR11);
382 rt2x00_set_field32(®, CSR11_SLOT_TIME, erp->slot_time);
383 rt2x00mmio_register_write(rt2x00dev, CSR11, reg);
384
385 reg = rt2x00mmio_register_read(rt2x00dev, CSR18);
386 rt2x00_set_field32(®, CSR18_SIFS, erp->sifs);
387 rt2x00_set_field32(®, CSR18_PIFS, erp->pifs);
388 rt2x00mmio_register_write(rt2x00dev, CSR18, reg);
389
390 reg = rt2x00mmio_register_read(rt2x00dev, CSR19);
391 rt2x00_set_field32(®, CSR19_DIFS, erp->difs);
392 rt2x00_set_field32(®, CSR19_EIFS, erp->eifs);
393 rt2x00mmio_register_write(rt2x00dev, CSR19, reg);
394 }
395
396 if (changed & BSS_CHANGED_BEACON_INT) {
397 reg = rt2x00mmio_register_read(rt2x00dev, CSR12);
398 rt2x00_set_field32(®, CSR12_BEACON_INTERVAL,
399 erp->beacon_int * 16);
400 rt2x00_set_field32(®, CSR12_CFP_MAX_DURATION,
401 erp->beacon_int * 16);
402 rt2x00mmio_register_write(rt2x00dev, CSR12, reg);
403 }
404
405 }
406
rt2500pci_config_ant(struct rt2x00_dev * rt2x00dev,struct antenna_setup * ant)407 static void rt2500pci_config_ant(struct rt2x00_dev *rt2x00dev,
408 struct antenna_setup *ant)
409 {
410 u32 reg;
411 u8 r14;
412 u8 r2;
413
414 /*
415 * We should never come here because rt2x00lib is supposed
416 * to catch this and send us the correct antenna explicitely.
417 */
418 BUG_ON(ant->rx == ANTENNA_SW_DIVERSITY ||
419 ant->tx == ANTENNA_SW_DIVERSITY);
420
421 reg = rt2x00mmio_register_read(rt2x00dev, BBPCSR1);
422 r14 = rt2500pci_bbp_read(rt2x00dev, 14);
423 r2 = rt2500pci_bbp_read(rt2x00dev, 2);
424
425 /*
426 * Configure the TX antenna.
427 */
428 switch (ant->tx) {
429 case ANTENNA_A:
430 rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 0);
431 rt2x00_set_field32(®, BBPCSR1_CCK, 0);
432 rt2x00_set_field32(®, BBPCSR1_OFDM, 0);
433 break;
434 case ANTENNA_B:
435 default:
436 rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 2);
437 rt2x00_set_field32(®, BBPCSR1_CCK, 2);
438 rt2x00_set_field32(®, BBPCSR1_OFDM, 2);
439 break;
440 }
441
442 /*
443 * Configure the RX antenna.
444 */
445 switch (ant->rx) {
446 case ANTENNA_A:
447 rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 0);
448 break;
449 case ANTENNA_B:
450 default:
451 rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 2);
452 break;
453 }
454
455 /*
456 * RT2525E and RT5222 need to flip TX I/Q
457 */
458 if (rt2x00_rf(rt2x00dev, RF2525E) || rt2x00_rf(rt2x00dev, RF5222)) {
459 rt2x00_set_field8(&r2, BBP_R2_TX_IQ_FLIP, 1);
460 rt2x00_set_field32(®, BBPCSR1_CCK_FLIP, 1);
461 rt2x00_set_field32(®, BBPCSR1_OFDM_FLIP, 1);
462
463 /*
464 * RT2525E does not need RX I/Q Flip.
465 */
466 if (rt2x00_rf(rt2x00dev, RF2525E))
467 rt2x00_set_field8(&r14, BBP_R14_RX_IQ_FLIP, 0);
468 } else {
469 rt2x00_set_field32(®, BBPCSR1_CCK_FLIP, 0);
470 rt2x00_set_field32(®, BBPCSR1_OFDM_FLIP, 0);
471 }
472
473 rt2x00mmio_register_write(rt2x00dev, BBPCSR1, reg);
474 rt2500pci_bbp_write(rt2x00dev, 14, r14);
475 rt2500pci_bbp_write(rt2x00dev, 2, r2);
476 }
477
rt2500pci_config_channel(struct rt2x00_dev * rt2x00dev,struct rf_channel * rf,const int txpower)478 static void rt2500pci_config_channel(struct rt2x00_dev *rt2x00dev,
479 struct rf_channel *rf, const int txpower)
480 {
481 u8 r70;
482
483 /*
484 * Set TXpower.
485 */
486 rt2x00_set_field32(&rf->rf3, RF3_TXPOWER, TXPOWER_TO_DEV(txpower));
487
488 /*
489 * Switch on tuning bits.
490 * For RT2523 devices we do not need to update the R1 register.
491 */
492 if (!rt2x00_rf(rt2x00dev, RF2523))
493 rt2x00_set_field32(&rf->rf1, RF1_TUNER, 1);
494 rt2x00_set_field32(&rf->rf3, RF3_TUNER, 1);
495
496 /*
497 * For RT2525 we should first set the channel to half band higher.
498 */
499 if (rt2x00_rf(rt2x00dev, RF2525)) {
500 static const u32 vals[] = {
501 0x00080cbe, 0x00080d02, 0x00080d06, 0x00080d0a,
502 0x00080d0e, 0x00080d12, 0x00080d16, 0x00080d1a,
503 0x00080d1e, 0x00080d22, 0x00080d26, 0x00080d2a,
504 0x00080d2e, 0x00080d3a
505 };
506
507 rt2500pci_rf_write(rt2x00dev, 1, rf->rf1);
508 rt2500pci_rf_write(rt2x00dev, 2, vals[rf->channel - 1]);
509 rt2500pci_rf_write(rt2x00dev, 3, rf->rf3);
510 if (rf->rf4)
511 rt2500pci_rf_write(rt2x00dev, 4, rf->rf4);
512 }
513
514 rt2500pci_rf_write(rt2x00dev, 1, rf->rf1);
515 rt2500pci_rf_write(rt2x00dev, 2, rf->rf2);
516 rt2500pci_rf_write(rt2x00dev, 3, rf->rf3);
517 if (rf->rf4)
518 rt2500pci_rf_write(rt2x00dev, 4, rf->rf4);
519
520 /*
521 * Channel 14 requires the Japan filter bit to be set.
522 */
523 r70 = 0x46;
524 rt2x00_set_field8(&r70, BBP_R70_JAPAN_FILTER, rf->channel == 14);
525 rt2500pci_bbp_write(rt2x00dev, 70, r70);
526
527 msleep(1);
528
529 /*
530 * Switch off tuning bits.
531 * For RT2523 devices we do not need to update the R1 register.
532 */
533 if (!rt2x00_rf(rt2x00dev, RF2523)) {
534 rt2x00_set_field32(&rf->rf1, RF1_TUNER, 0);
535 rt2500pci_rf_write(rt2x00dev, 1, rf->rf1);
536 }
537
538 rt2x00_set_field32(&rf->rf3, RF3_TUNER, 0);
539 rt2500pci_rf_write(rt2x00dev, 3, rf->rf3);
540
541 /*
542 * Clear false CRC during channel switch.
543 */
544 rf->rf1 = rt2x00mmio_register_read(rt2x00dev, CNT0);
545 }
546
rt2500pci_config_txpower(struct rt2x00_dev * rt2x00dev,const int txpower)547 static void rt2500pci_config_txpower(struct rt2x00_dev *rt2x00dev,
548 const int txpower)
549 {
550 u32 rf3;
551
552 rf3 = rt2x00_rf_read(rt2x00dev, 3);
553 rt2x00_set_field32(&rf3, RF3_TXPOWER, TXPOWER_TO_DEV(txpower));
554 rt2500pci_rf_write(rt2x00dev, 3, rf3);
555 }
556
rt2500pci_config_retry_limit(struct rt2x00_dev * rt2x00dev,struct rt2x00lib_conf * libconf)557 static void rt2500pci_config_retry_limit(struct rt2x00_dev *rt2x00dev,
558 struct rt2x00lib_conf *libconf)
559 {
560 u32 reg;
561
562 reg = rt2x00mmio_register_read(rt2x00dev, CSR11);
563 rt2x00_set_field32(®, CSR11_LONG_RETRY,
564 libconf->conf->long_frame_max_tx_count);
565 rt2x00_set_field32(®, CSR11_SHORT_RETRY,
566 libconf->conf->short_frame_max_tx_count);
567 rt2x00mmio_register_write(rt2x00dev, CSR11, reg);
568 }
569
rt2500pci_config_ps(struct rt2x00_dev * rt2x00dev,struct rt2x00lib_conf * libconf)570 static void rt2500pci_config_ps(struct rt2x00_dev *rt2x00dev,
571 struct rt2x00lib_conf *libconf)
572 {
573 enum dev_state state =
574 (libconf->conf->flags & IEEE80211_CONF_PS) ?
575 STATE_SLEEP : STATE_AWAKE;
576 u32 reg;
577
578 if (state == STATE_SLEEP) {
579 reg = rt2x00mmio_register_read(rt2x00dev, CSR20);
580 rt2x00_set_field32(®, CSR20_DELAY_AFTER_TBCN,
581 (rt2x00dev->beacon_int - 20) * 16);
582 rt2x00_set_field32(®, CSR20_TBCN_BEFORE_WAKEUP,
583 libconf->conf->listen_interval - 1);
584
585 /* We must first disable autowake before it can be enabled */
586 rt2x00_set_field32(®, CSR20_AUTOWAKE, 0);
587 rt2x00mmio_register_write(rt2x00dev, CSR20, reg);
588
589 rt2x00_set_field32(®, CSR20_AUTOWAKE, 1);
590 rt2x00mmio_register_write(rt2x00dev, CSR20, reg);
591 } else {
592 reg = rt2x00mmio_register_read(rt2x00dev, CSR20);
593 rt2x00_set_field32(®, CSR20_AUTOWAKE, 0);
594 rt2x00mmio_register_write(rt2x00dev, CSR20, reg);
595 }
596
597 rt2x00dev->ops->lib->set_device_state(rt2x00dev, state);
598 }
599
rt2500pci_config(struct rt2x00_dev * rt2x00dev,struct rt2x00lib_conf * libconf,const unsigned int flags)600 static void rt2500pci_config(struct rt2x00_dev *rt2x00dev,
601 struct rt2x00lib_conf *libconf,
602 const unsigned int flags)
603 {
604 if (flags & IEEE80211_CONF_CHANGE_CHANNEL)
605 rt2500pci_config_channel(rt2x00dev, &libconf->rf,
606 libconf->conf->power_level);
607 if ((flags & IEEE80211_CONF_CHANGE_POWER) &&
608 !(flags & IEEE80211_CONF_CHANGE_CHANNEL))
609 rt2500pci_config_txpower(rt2x00dev,
610 libconf->conf->power_level);
611 if (flags & IEEE80211_CONF_CHANGE_RETRY_LIMITS)
612 rt2500pci_config_retry_limit(rt2x00dev, libconf);
613 if (flags & IEEE80211_CONF_CHANGE_PS)
614 rt2500pci_config_ps(rt2x00dev, libconf);
615 }
616
617 /*
618 * Link tuning
619 */
rt2500pci_link_stats(struct rt2x00_dev * rt2x00dev,struct link_qual * qual)620 static void rt2500pci_link_stats(struct rt2x00_dev *rt2x00dev,
621 struct link_qual *qual)
622 {
623 u32 reg;
624
625 /*
626 * Update FCS error count from register.
627 */
628 reg = rt2x00mmio_register_read(rt2x00dev, CNT0);
629 qual->rx_failed = rt2x00_get_field32(reg, CNT0_FCS_ERROR);
630
631 /*
632 * Update False CCA count from register.
633 */
634 reg = rt2x00mmio_register_read(rt2x00dev, CNT3);
635 qual->false_cca = rt2x00_get_field32(reg, CNT3_FALSE_CCA);
636 }
637
rt2500pci_set_vgc(struct rt2x00_dev * rt2x00dev,struct link_qual * qual,u8 vgc_level)638 static inline void rt2500pci_set_vgc(struct rt2x00_dev *rt2x00dev,
639 struct link_qual *qual, u8 vgc_level)
640 {
641 if (qual->vgc_level_reg != vgc_level) {
642 rt2500pci_bbp_write(rt2x00dev, 17, vgc_level);
643 qual->vgc_level = vgc_level;
644 qual->vgc_level_reg = vgc_level;
645 }
646 }
647
rt2500pci_reset_tuner(struct rt2x00_dev * rt2x00dev,struct link_qual * qual)648 static void rt2500pci_reset_tuner(struct rt2x00_dev *rt2x00dev,
649 struct link_qual *qual)
650 {
651 rt2500pci_set_vgc(rt2x00dev, qual, 0x48);
652 }
653
rt2500pci_link_tuner(struct rt2x00_dev * rt2x00dev,struct link_qual * qual,const u32 count)654 static void rt2500pci_link_tuner(struct rt2x00_dev *rt2x00dev,
655 struct link_qual *qual, const u32 count)
656 {
657 /*
658 * To prevent collisions with MAC ASIC on chipsets
659 * up to version C the link tuning should halt after 20
660 * seconds while being associated.
661 */
662 if (rt2x00_rev(rt2x00dev) < RT2560_VERSION_D &&
663 rt2x00dev->intf_associated && count > 20)
664 return;
665
666 /*
667 * Chipset versions C and lower should directly continue
668 * to the dynamic CCA tuning. Chipset version D and higher
669 * should go straight to dynamic CCA tuning when they
670 * are not associated.
671 */
672 if (rt2x00_rev(rt2x00dev) < RT2560_VERSION_D ||
673 !rt2x00dev->intf_associated)
674 goto dynamic_cca_tune;
675
676 /*
677 * A too low RSSI will cause too much false CCA which will
678 * then corrupt the R17 tuning. To remidy this the tuning should
679 * be stopped (While making sure the R17 value will not exceed limits)
680 */
681 if (qual->rssi < -80 && count > 20) {
682 if (qual->vgc_level_reg >= 0x41)
683 rt2500pci_set_vgc(rt2x00dev, qual, qual->vgc_level);
684 return;
685 }
686
687 /*
688 * Special big-R17 for short distance
689 */
690 if (qual->rssi >= -58) {
691 rt2500pci_set_vgc(rt2x00dev, qual, 0x50);
692 return;
693 }
694
695 /*
696 * Special mid-R17 for middle distance
697 */
698 if (qual->rssi >= -74) {
699 rt2500pci_set_vgc(rt2x00dev, qual, 0x41);
700 return;
701 }
702
703 /*
704 * Leave short or middle distance condition, restore r17
705 * to the dynamic tuning range.
706 */
707 if (qual->vgc_level_reg >= 0x41) {
708 rt2500pci_set_vgc(rt2x00dev, qual, qual->vgc_level);
709 return;
710 }
711
712 dynamic_cca_tune:
713
714 /*
715 * R17 is inside the dynamic tuning range,
716 * start tuning the link based on the false cca counter.
717 */
718 if (qual->false_cca > 512 && qual->vgc_level_reg < 0x40)
719 rt2500pci_set_vgc(rt2x00dev, qual, ++qual->vgc_level_reg);
720 else if (qual->false_cca < 100 && qual->vgc_level_reg > 0x32)
721 rt2500pci_set_vgc(rt2x00dev, qual, --qual->vgc_level_reg);
722 }
723
724 /*
725 * Queue handlers.
726 */
rt2500pci_start_queue(struct data_queue * queue)727 static void rt2500pci_start_queue(struct data_queue *queue)
728 {
729 struct rt2x00_dev *rt2x00dev = queue->rt2x00dev;
730 u32 reg;
731
732 switch (queue->qid) {
733 case QID_RX:
734 reg = rt2x00mmio_register_read(rt2x00dev, RXCSR0);
735 rt2x00_set_field32(®, RXCSR0_DISABLE_RX, 0);
736 rt2x00mmio_register_write(rt2x00dev, RXCSR0, reg);
737 break;
738 case QID_BEACON:
739 reg = rt2x00mmio_register_read(rt2x00dev, CSR14);
740 rt2x00_set_field32(®, CSR14_TSF_COUNT, 1);
741 rt2x00_set_field32(®, CSR14_TBCN, 1);
742 rt2x00_set_field32(®, CSR14_BEACON_GEN, 1);
743 rt2x00mmio_register_write(rt2x00dev, CSR14, reg);
744 break;
745 default:
746 break;
747 }
748 }
749
rt2500pci_kick_queue(struct data_queue * queue)750 static void rt2500pci_kick_queue(struct data_queue *queue)
751 {
752 struct rt2x00_dev *rt2x00dev = queue->rt2x00dev;
753 u32 reg;
754
755 switch (queue->qid) {
756 case QID_AC_VO:
757 reg = rt2x00mmio_register_read(rt2x00dev, TXCSR0);
758 rt2x00_set_field32(®, TXCSR0_KICK_PRIO, 1);
759 rt2x00mmio_register_write(rt2x00dev, TXCSR0, reg);
760 break;
761 case QID_AC_VI:
762 reg = rt2x00mmio_register_read(rt2x00dev, TXCSR0);
763 rt2x00_set_field32(®, TXCSR0_KICK_TX, 1);
764 rt2x00mmio_register_write(rt2x00dev, TXCSR0, reg);
765 break;
766 case QID_ATIM:
767 reg = rt2x00mmio_register_read(rt2x00dev, TXCSR0);
768 rt2x00_set_field32(®, TXCSR0_KICK_ATIM, 1);
769 rt2x00mmio_register_write(rt2x00dev, TXCSR0, reg);
770 break;
771 default:
772 break;
773 }
774 }
775
rt2500pci_stop_queue(struct data_queue * queue)776 static void rt2500pci_stop_queue(struct data_queue *queue)
777 {
778 struct rt2x00_dev *rt2x00dev = queue->rt2x00dev;
779 u32 reg;
780
781 switch (queue->qid) {
782 case QID_AC_VO:
783 case QID_AC_VI:
784 case QID_ATIM:
785 reg = rt2x00mmio_register_read(rt2x00dev, TXCSR0);
786 rt2x00_set_field32(®, TXCSR0_ABORT, 1);
787 rt2x00mmio_register_write(rt2x00dev, TXCSR0, reg);
788 break;
789 case QID_RX:
790 reg = rt2x00mmio_register_read(rt2x00dev, RXCSR0);
791 rt2x00_set_field32(®, RXCSR0_DISABLE_RX, 1);
792 rt2x00mmio_register_write(rt2x00dev, RXCSR0, reg);
793 break;
794 case QID_BEACON:
795 reg = rt2x00mmio_register_read(rt2x00dev, CSR14);
796 rt2x00_set_field32(®, CSR14_TSF_COUNT, 0);
797 rt2x00_set_field32(®, CSR14_TBCN, 0);
798 rt2x00_set_field32(®, CSR14_BEACON_GEN, 0);
799 rt2x00mmio_register_write(rt2x00dev, CSR14, reg);
800
801 /*
802 * Wait for possibly running tbtt tasklets.
803 */
804 tasklet_kill(&rt2x00dev->tbtt_tasklet);
805 break;
806 default:
807 break;
808 }
809 }
810
811 /*
812 * Initialization functions.
813 */
rt2500pci_get_entry_state(struct queue_entry * entry)814 static bool rt2500pci_get_entry_state(struct queue_entry *entry)
815 {
816 struct queue_entry_priv_mmio *entry_priv = entry->priv_data;
817 u32 word;
818
819 if (entry->queue->qid == QID_RX) {
820 word = rt2x00_desc_read(entry_priv->desc, 0);
821
822 return rt2x00_get_field32(word, RXD_W0_OWNER_NIC);
823 } else {
824 word = rt2x00_desc_read(entry_priv->desc, 0);
825
826 return (rt2x00_get_field32(word, TXD_W0_OWNER_NIC) ||
827 rt2x00_get_field32(word, TXD_W0_VALID));
828 }
829 }
830
rt2500pci_clear_entry(struct queue_entry * entry)831 static void rt2500pci_clear_entry(struct queue_entry *entry)
832 {
833 struct queue_entry_priv_mmio *entry_priv = entry->priv_data;
834 struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
835 u32 word;
836
837 if (entry->queue->qid == QID_RX) {
838 word = rt2x00_desc_read(entry_priv->desc, 1);
839 rt2x00_set_field32(&word, RXD_W1_BUFFER_ADDRESS, skbdesc->skb_dma);
840 rt2x00_desc_write(entry_priv->desc, 1, word);
841
842 word = rt2x00_desc_read(entry_priv->desc, 0);
843 rt2x00_set_field32(&word, RXD_W0_OWNER_NIC, 1);
844 rt2x00_desc_write(entry_priv->desc, 0, word);
845 } else {
846 word = rt2x00_desc_read(entry_priv->desc, 0);
847 rt2x00_set_field32(&word, TXD_W0_VALID, 0);
848 rt2x00_set_field32(&word, TXD_W0_OWNER_NIC, 0);
849 rt2x00_desc_write(entry_priv->desc, 0, word);
850 }
851 }
852
rt2500pci_init_queues(struct rt2x00_dev * rt2x00dev)853 static int rt2500pci_init_queues(struct rt2x00_dev *rt2x00dev)
854 {
855 struct queue_entry_priv_mmio *entry_priv;
856 u32 reg;
857
858 /*
859 * Initialize registers.
860 */
861 reg = rt2x00mmio_register_read(rt2x00dev, TXCSR2);
862 rt2x00_set_field32(®, TXCSR2_TXD_SIZE, rt2x00dev->tx[0].desc_size);
863 rt2x00_set_field32(®, TXCSR2_NUM_TXD, rt2x00dev->tx[1].limit);
864 rt2x00_set_field32(®, TXCSR2_NUM_ATIM, rt2x00dev->atim->limit);
865 rt2x00_set_field32(®, TXCSR2_NUM_PRIO, rt2x00dev->tx[0].limit);
866 rt2x00mmio_register_write(rt2x00dev, TXCSR2, reg);
867
868 entry_priv = rt2x00dev->tx[1].entries[0].priv_data;
869 reg = rt2x00mmio_register_read(rt2x00dev, TXCSR3);
870 rt2x00_set_field32(®, TXCSR3_TX_RING_REGISTER,
871 entry_priv->desc_dma);
872 rt2x00mmio_register_write(rt2x00dev, TXCSR3, reg);
873
874 entry_priv = rt2x00dev->tx[0].entries[0].priv_data;
875 reg = rt2x00mmio_register_read(rt2x00dev, TXCSR5);
876 rt2x00_set_field32(®, TXCSR5_PRIO_RING_REGISTER,
877 entry_priv->desc_dma);
878 rt2x00mmio_register_write(rt2x00dev, TXCSR5, reg);
879
880 entry_priv = rt2x00dev->atim->entries[0].priv_data;
881 reg = rt2x00mmio_register_read(rt2x00dev, TXCSR4);
882 rt2x00_set_field32(®, TXCSR4_ATIM_RING_REGISTER,
883 entry_priv->desc_dma);
884 rt2x00mmio_register_write(rt2x00dev, TXCSR4, reg);
885
886 entry_priv = rt2x00dev->bcn->entries[0].priv_data;
887 reg = rt2x00mmio_register_read(rt2x00dev, TXCSR6);
888 rt2x00_set_field32(®, TXCSR6_BEACON_RING_REGISTER,
889 entry_priv->desc_dma);
890 rt2x00mmio_register_write(rt2x00dev, TXCSR6, reg);
891
892 reg = rt2x00mmio_register_read(rt2x00dev, RXCSR1);
893 rt2x00_set_field32(®, RXCSR1_RXD_SIZE, rt2x00dev->rx->desc_size);
894 rt2x00_set_field32(®, RXCSR1_NUM_RXD, rt2x00dev->rx->limit);
895 rt2x00mmio_register_write(rt2x00dev, RXCSR1, reg);
896
897 entry_priv = rt2x00dev->rx->entries[0].priv_data;
898 reg = rt2x00mmio_register_read(rt2x00dev, RXCSR2);
899 rt2x00_set_field32(®, RXCSR2_RX_RING_REGISTER,
900 entry_priv->desc_dma);
901 rt2x00mmio_register_write(rt2x00dev, RXCSR2, reg);
902
903 return 0;
904 }
905
rt2500pci_init_registers(struct rt2x00_dev * rt2x00dev)906 static int rt2500pci_init_registers(struct rt2x00_dev *rt2x00dev)
907 {
908 u32 reg;
909
910 rt2x00mmio_register_write(rt2x00dev, PSCSR0, 0x00020002);
911 rt2x00mmio_register_write(rt2x00dev, PSCSR1, 0x00000002);
912 rt2x00mmio_register_write(rt2x00dev, PSCSR2, 0x00020002);
913 rt2x00mmio_register_write(rt2x00dev, PSCSR3, 0x00000002);
914
915 reg = rt2x00mmio_register_read(rt2x00dev, TIMECSR);
916 rt2x00_set_field32(®, TIMECSR_US_COUNT, 33);
917 rt2x00_set_field32(®, TIMECSR_US_64_COUNT, 63);
918 rt2x00_set_field32(®, TIMECSR_BEACON_EXPECT, 0);
919 rt2x00mmio_register_write(rt2x00dev, TIMECSR, reg);
920
921 reg = rt2x00mmio_register_read(rt2x00dev, CSR9);
922 rt2x00_set_field32(®, CSR9_MAX_FRAME_UNIT,
923 rt2x00dev->rx->data_size / 128);
924 rt2x00mmio_register_write(rt2x00dev, CSR9, reg);
925
926 /*
927 * Always use CWmin and CWmax set in descriptor.
928 */
929 reg = rt2x00mmio_register_read(rt2x00dev, CSR11);
930 rt2x00_set_field32(®, CSR11_CW_SELECT, 0);
931 rt2x00mmio_register_write(rt2x00dev, CSR11, reg);
932
933 reg = rt2x00mmio_register_read(rt2x00dev, CSR14);
934 rt2x00_set_field32(®, CSR14_TSF_COUNT, 0);
935 rt2x00_set_field32(®, CSR14_TSF_SYNC, 0);
936 rt2x00_set_field32(®, CSR14_TBCN, 0);
937 rt2x00_set_field32(®, CSR14_TCFP, 0);
938 rt2x00_set_field32(®, CSR14_TATIMW, 0);
939 rt2x00_set_field32(®, CSR14_BEACON_GEN, 0);
940 rt2x00_set_field32(®, CSR14_CFP_COUNT_PRELOAD, 0);
941 rt2x00_set_field32(®, CSR14_TBCM_PRELOAD, 0);
942 rt2x00mmio_register_write(rt2x00dev, CSR14, reg);
943
944 rt2x00mmio_register_write(rt2x00dev, CNT3, 0);
945
946 reg = rt2x00mmio_register_read(rt2x00dev, TXCSR8);
947 rt2x00_set_field32(®, TXCSR8_BBP_ID0, 10);
948 rt2x00_set_field32(®, TXCSR8_BBP_ID0_VALID, 1);
949 rt2x00_set_field32(®, TXCSR8_BBP_ID1, 11);
950 rt2x00_set_field32(®, TXCSR8_BBP_ID1_VALID, 1);
951 rt2x00_set_field32(®, TXCSR8_BBP_ID2, 13);
952 rt2x00_set_field32(®, TXCSR8_BBP_ID2_VALID, 1);
953 rt2x00_set_field32(®, TXCSR8_BBP_ID3, 12);
954 rt2x00_set_field32(®, TXCSR8_BBP_ID3_VALID, 1);
955 rt2x00mmio_register_write(rt2x00dev, TXCSR8, reg);
956
957 reg = rt2x00mmio_register_read(rt2x00dev, ARTCSR0);
958 rt2x00_set_field32(®, ARTCSR0_ACK_CTS_1MBS, 112);
959 rt2x00_set_field32(®, ARTCSR0_ACK_CTS_2MBS, 56);
960 rt2x00_set_field32(®, ARTCSR0_ACK_CTS_5_5MBS, 20);
961 rt2x00_set_field32(®, ARTCSR0_ACK_CTS_11MBS, 10);
962 rt2x00mmio_register_write(rt2x00dev, ARTCSR0, reg);
963
964 reg = rt2x00mmio_register_read(rt2x00dev, ARTCSR1);
965 rt2x00_set_field32(®, ARTCSR1_ACK_CTS_6MBS, 45);
966 rt2x00_set_field32(®, ARTCSR1_ACK_CTS_9MBS, 37);
967 rt2x00_set_field32(®, ARTCSR1_ACK_CTS_12MBS, 33);
968 rt2x00_set_field32(®, ARTCSR1_ACK_CTS_18MBS, 29);
969 rt2x00mmio_register_write(rt2x00dev, ARTCSR1, reg);
970
971 reg = rt2x00mmio_register_read(rt2x00dev, ARTCSR2);
972 rt2x00_set_field32(®, ARTCSR2_ACK_CTS_24MBS, 29);
973 rt2x00_set_field32(®, ARTCSR2_ACK_CTS_36MBS, 25);
974 rt2x00_set_field32(®, ARTCSR2_ACK_CTS_48MBS, 25);
975 rt2x00_set_field32(®, ARTCSR2_ACK_CTS_54MBS, 25);
976 rt2x00mmio_register_write(rt2x00dev, ARTCSR2, reg);
977
978 reg = rt2x00mmio_register_read(rt2x00dev, RXCSR3);
979 rt2x00_set_field32(®, RXCSR3_BBP_ID0, 47); /* CCK Signal */
980 rt2x00_set_field32(®, RXCSR3_BBP_ID0_VALID, 1);
981 rt2x00_set_field32(®, RXCSR3_BBP_ID1, 51); /* Rssi */
982 rt2x00_set_field32(®, RXCSR3_BBP_ID1_VALID, 1);
983 rt2x00_set_field32(®, RXCSR3_BBP_ID2, 42); /* OFDM Rate */
984 rt2x00_set_field32(®, RXCSR3_BBP_ID2_VALID, 1);
985 rt2x00_set_field32(®, RXCSR3_BBP_ID3, 51); /* RSSI */
986 rt2x00_set_field32(®, RXCSR3_BBP_ID3_VALID, 1);
987 rt2x00mmio_register_write(rt2x00dev, RXCSR3, reg);
988
989 reg = rt2x00mmio_register_read(rt2x00dev, PCICSR);
990 rt2x00_set_field32(®, PCICSR_BIG_ENDIAN, 0);
991 rt2x00_set_field32(®, PCICSR_RX_TRESHOLD, 0);
992 rt2x00_set_field32(®, PCICSR_TX_TRESHOLD, 3);
993 rt2x00_set_field32(®, PCICSR_BURST_LENTH, 1);
994 rt2x00_set_field32(®, PCICSR_ENABLE_CLK, 1);
995 rt2x00_set_field32(®, PCICSR_READ_MULTIPLE, 1);
996 rt2x00_set_field32(®, PCICSR_WRITE_INVALID, 1);
997 rt2x00mmio_register_write(rt2x00dev, PCICSR, reg);
998
999 rt2x00mmio_register_write(rt2x00dev, PWRCSR0, 0x3f3b3100);
1000
1001 rt2x00mmio_register_write(rt2x00dev, GPIOCSR, 0x0000ff00);
1002 rt2x00mmio_register_write(rt2x00dev, TESTCSR, 0x000000f0);
1003
1004 if (rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_AWAKE))
1005 return -EBUSY;
1006
1007 rt2x00mmio_register_write(rt2x00dev, MACCSR0, 0x00213223);
1008 rt2x00mmio_register_write(rt2x00dev, MACCSR1, 0x00235518);
1009
1010 reg = rt2x00mmio_register_read(rt2x00dev, MACCSR2);
1011 rt2x00_set_field32(®, MACCSR2_DELAY, 64);
1012 rt2x00mmio_register_write(rt2x00dev, MACCSR2, reg);
1013
1014 reg = rt2x00mmio_register_read(rt2x00dev, RALINKCSR);
1015 rt2x00_set_field32(®, RALINKCSR_AR_BBP_DATA0, 17);
1016 rt2x00_set_field32(®, RALINKCSR_AR_BBP_ID0, 26);
1017 rt2x00_set_field32(®, RALINKCSR_AR_BBP_VALID0, 1);
1018 rt2x00_set_field32(®, RALINKCSR_AR_BBP_DATA1, 0);
1019 rt2x00_set_field32(®, RALINKCSR_AR_BBP_ID1, 26);
1020 rt2x00_set_field32(®, RALINKCSR_AR_BBP_VALID1, 1);
1021 rt2x00mmio_register_write(rt2x00dev, RALINKCSR, reg);
1022
1023 rt2x00mmio_register_write(rt2x00dev, BBPCSR1, 0x82188200);
1024
1025 rt2x00mmio_register_write(rt2x00dev, TXACKCSR0, 0x00000020);
1026
1027 reg = rt2x00mmio_register_read(rt2x00dev, CSR1);
1028 rt2x00_set_field32(®, CSR1_SOFT_RESET, 1);
1029 rt2x00_set_field32(®, CSR1_BBP_RESET, 0);
1030 rt2x00_set_field32(®, CSR1_HOST_READY, 0);
1031 rt2x00mmio_register_write(rt2x00dev, CSR1, reg);
1032
1033 reg = rt2x00mmio_register_read(rt2x00dev, CSR1);
1034 rt2x00_set_field32(®, CSR1_SOFT_RESET, 0);
1035 rt2x00_set_field32(®, CSR1_HOST_READY, 1);
1036 rt2x00mmio_register_write(rt2x00dev, CSR1, reg);
1037
1038 /*
1039 * We must clear the FCS and FIFO error count.
1040 * These registers are cleared on read,
1041 * so we may pass a useless variable to store the value.
1042 */
1043 reg = rt2x00mmio_register_read(rt2x00dev, CNT0);
1044 reg = rt2x00mmio_register_read(rt2x00dev, CNT4);
1045
1046 return 0;
1047 }
1048
rt2500pci_wait_bbp_ready(struct rt2x00_dev * rt2x00dev)1049 static int rt2500pci_wait_bbp_ready(struct rt2x00_dev *rt2x00dev)
1050 {
1051 unsigned int i;
1052 u8 value;
1053
1054 for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
1055 value = rt2500pci_bbp_read(rt2x00dev, 0);
1056 if ((value != 0xff) && (value != 0x00))
1057 return 0;
1058 udelay(REGISTER_BUSY_DELAY);
1059 }
1060
1061 rt2x00_err(rt2x00dev, "BBP register access failed, aborting\n");
1062 return -EACCES;
1063 }
1064
rt2500pci_init_bbp(struct rt2x00_dev * rt2x00dev)1065 static int rt2500pci_init_bbp(struct rt2x00_dev *rt2x00dev)
1066 {
1067 unsigned int i;
1068 u16 eeprom;
1069 u8 reg_id;
1070 u8 value;
1071
1072 if (unlikely(rt2500pci_wait_bbp_ready(rt2x00dev)))
1073 return -EACCES;
1074
1075 rt2500pci_bbp_write(rt2x00dev, 3, 0x02);
1076 rt2500pci_bbp_write(rt2x00dev, 4, 0x19);
1077 rt2500pci_bbp_write(rt2x00dev, 14, 0x1c);
1078 rt2500pci_bbp_write(rt2x00dev, 15, 0x30);
1079 rt2500pci_bbp_write(rt2x00dev, 16, 0xac);
1080 rt2500pci_bbp_write(rt2x00dev, 18, 0x18);
1081 rt2500pci_bbp_write(rt2x00dev, 19, 0xff);
1082 rt2500pci_bbp_write(rt2x00dev, 20, 0x1e);
1083 rt2500pci_bbp_write(rt2x00dev, 21, 0x08);
1084 rt2500pci_bbp_write(rt2x00dev, 22, 0x08);
1085 rt2500pci_bbp_write(rt2x00dev, 23, 0x08);
1086 rt2500pci_bbp_write(rt2x00dev, 24, 0x70);
1087 rt2500pci_bbp_write(rt2x00dev, 25, 0x40);
1088 rt2500pci_bbp_write(rt2x00dev, 26, 0x08);
1089 rt2500pci_bbp_write(rt2x00dev, 27, 0x23);
1090 rt2500pci_bbp_write(rt2x00dev, 30, 0x10);
1091 rt2500pci_bbp_write(rt2x00dev, 31, 0x2b);
1092 rt2500pci_bbp_write(rt2x00dev, 32, 0xb9);
1093 rt2500pci_bbp_write(rt2x00dev, 34, 0x12);
1094 rt2500pci_bbp_write(rt2x00dev, 35, 0x50);
1095 rt2500pci_bbp_write(rt2x00dev, 39, 0xc4);
1096 rt2500pci_bbp_write(rt2x00dev, 40, 0x02);
1097 rt2500pci_bbp_write(rt2x00dev, 41, 0x60);
1098 rt2500pci_bbp_write(rt2x00dev, 53, 0x10);
1099 rt2500pci_bbp_write(rt2x00dev, 54, 0x18);
1100 rt2500pci_bbp_write(rt2x00dev, 56, 0x08);
1101 rt2500pci_bbp_write(rt2x00dev, 57, 0x10);
1102 rt2500pci_bbp_write(rt2x00dev, 58, 0x08);
1103 rt2500pci_bbp_write(rt2x00dev, 61, 0x6d);
1104 rt2500pci_bbp_write(rt2x00dev, 62, 0x10);
1105
1106 for (i = 0; i < EEPROM_BBP_SIZE; i++) {
1107 eeprom = rt2x00_eeprom_read(rt2x00dev, EEPROM_BBP_START + i);
1108
1109 if (eeprom != 0xffff && eeprom != 0x0000) {
1110 reg_id = rt2x00_get_field16(eeprom, EEPROM_BBP_REG_ID);
1111 value = rt2x00_get_field16(eeprom, EEPROM_BBP_VALUE);
1112 rt2500pci_bbp_write(rt2x00dev, reg_id, value);
1113 }
1114 }
1115
1116 return 0;
1117 }
1118
1119 /*
1120 * Device state switch handlers.
1121 */
rt2500pci_toggle_irq(struct rt2x00_dev * rt2x00dev,enum dev_state state)1122 static void rt2500pci_toggle_irq(struct rt2x00_dev *rt2x00dev,
1123 enum dev_state state)
1124 {
1125 int mask = (state == STATE_RADIO_IRQ_OFF);
1126 u32 reg;
1127 unsigned long flags;
1128
1129 /*
1130 * When interrupts are being enabled, the interrupt registers
1131 * should clear the register to assure a clean state.
1132 */
1133 if (state == STATE_RADIO_IRQ_ON) {
1134 reg = rt2x00mmio_register_read(rt2x00dev, CSR7);
1135 rt2x00mmio_register_write(rt2x00dev, CSR7, reg);
1136 }
1137
1138 /*
1139 * Only toggle the interrupts bits we are going to use.
1140 * Non-checked interrupt bits are disabled by default.
1141 */
1142 spin_lock_irqsave(&rt2x00dev->irqmask_lock, flags);
1143
1144 reg = rt2x00mmio_register_read(rt2x00dev, CSR8);
1145 rt2x00_set_field32(®, CSR8_TBCN_EXPIRE, mask);
1146 rt2x00_set_field32(®, CSR8_TXDONE_TXRING, mask);
1147 rt2x00_set_field32(®, CSR8_TXDONE_ATIMRING, mask);
1148 rt2x00_set_field32(®, CSR8_TXDONE_PRIORING, mask);
1149 rt2x00_set_field32(®, CSR8_RXDONE, mask);
1150 rt2x00mmio_register_write(rt2x00dev, CSR8, reg);
1151
1152 spin_unlock_irqrestore(&rt2x00dev->irqmask_lock, flags);
1153
1154 if (state == STATE_RADIO_IRQ_OFF) {
1155 /*
1156 * Ensure that all tasklets are finished.
1157 */
1158 tasklet_kill(&rt2x00dev->txstatus_tasklet);
1159 tasklet_kill(&rt2x00dev->rxdone_tasklet);
1160 tasklet_kill(&rt2x00dev->tbtt_tasklet);
1161 }
1162 }
1163
rt2500pci_enable_radio(struct rt2x00_dev * rt2x00dev)1164 static int rt2500pci_enable_radio(struct rt2x00_dev *rt2x00dev)
1165 {
1166 /*
1167 * Initialize all registers.
1168 */
1169 if (unlikely(rt2500pci_init_queues(rt2x00dev) ||
1170 rt2500pci_init_registers(rt2x00dev) ||
1171 rt2500pci_init_bbp(rt2x00dev)))
1172 return -EIO;
1173
1174 return 0;
1175 }
1176
rt2500pci_disable_radio(struct rt2x00_dev * rt2x00dev)1177 static void rt2500pci_disable_radio(struct rt2x00_dev *rt2x00dev)
1178 {
1179 /*
1180 * Disable power
1181 */
1182 rt2x00mmio_register_write(rt2x00dev, PWRCSR0, 0);
1183 }
1184
rt2500pci_set_state(struct rt2x00_dev * rt2x00dev,enum dev_state state)1185 static int rt2500pci_set_state(struct rt2x00_dev *rt2x00dev,
1186 enum dev_state state)
1187 {
1188 u32 reg, reg2;
1189 unsigned int i;
1190 char put_to_sleep;
1191 char bbp_state;
1192 char rf_state;
1193
1194 put_to_sleep = (state != STATE_AWAKE);
1195
1196 reg = rt2x00mmio_register_read(rt2x00dev, PWRCSR1);
1197 rt2x00_set_field32(®, PWRCSR1_SET_STATE, 1);
1198 rt2x00_set_field32(®, PWRCSR1_BBP_DESIRE_STATE, state);
1199 rt2x00_set_field32(®, PWRCSR1_RF_DESIRE_STATE, state);
1200 rt2x00_set_field32(®, PWRCSR1_PUT_TO_SLEEP, put_to_sleep);
1201 rt2x00mmio_register_write(rt2x00dev, PWRCSR1, reg);
1202
1203 /*
1204 * Device is not guaranteed to be in the requested state yet.
1205 * We must wait until the register indicates that the
1206 * device has entered the correct state.
1207 */
1208 for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
1209 reg2 = rt2x00mmio_register_read(rt2x00dev, PWRCSR1);
1210 bbp_state = rt2x00_get_field32(reg2, PWRCSR1_BBP_CURR_STATE);
1211 rf_state = rt2x00_get_field32(reg2, PWRCSR1_RF_CURR_STATE);
1212 if (bbp_state == state && rf_state == state)
1213 return 0;
1214 rt2x00mmio_register_write(rt2x00dev, PWRCSR1, reg);
1215 msleep(10);
1216 }
1217
1218 return -EBUSY;
1219 }
1220
rt2500pci_set_device_state(struct rt2x00_dev * rt2x00dev,enum dev_state state)1221 static int rt2500pci_set_device_state(struct rt2x00_dev *rt2x00dev,
1222 enum dev_state state)
1223 {
1224 int retval = 0;
1225
1226 switch (state) {
1227 case STATE_RADIO_ON:
1228 retval = rt2500pci_enable_radio(rt2x00dev);
1229 break;
1230 case STATE_RADIO_OFF:
1231 rt2500pci_disable_radio(rt2x00dev);
1232 break;
1233 case STATE_RADIO_IRQ_ON:
1234 case STATE_RADIO_IRQ_OFF:
1235 rt2500pci_toggle_irq(rt2x00dev, state);
1236 break;
1237 case STATE_DEEP_SLEEP:
1238 case STATE_SLEEP:
1239 case STATE_STANDBY:
1240 case STATE_AWAKE:
1241 retval = rt2500pci_set_state(rt2x00dev, state);
1242 break;
1243 default:
1244 retval = -ENOTSUPP;
1245 break;
1246 }
1247
1248 if (unlikely(retval))
1249 rt2x00_err(rt2x00dev, "Device failed to enter state %d (%d)\n",
1250 state, retval);
1251
1252 return retval;
1253 }
1254
1255 /*
1256 * TX descriptor initialization
1257 */
rt2500pci_write_tx_desc(struct queue_entry * entry,struct txentry_desc * txdesc)1258 static void rt2500pci_write_tx_desc(struct queue_entry *entry,
1259 struct txentry_desc *txdesc)
1260 {
1261 struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
1262 struct queue_entry_priv_mmio *entry_priv = entry->priv_data;
1263 __le32 *txd = entry_priv->desc;
1264 u32 word;
1265
1266 /*
1267 * Start writing the descriptor words.
1268 */
1269 word = rt2x00_desc_read(txd, 1);
1270 rt2x00_set_field32(&word, TXD_W1_BUFFER_ADDRESS, skbdesc->skb_dma);
1271 rt2x00_desc_write(txd, 1, word);
1272
1273 word = rt2x00_desc_read(txd, 2);
1274 rt2x00_set_field32(&word, TXD_W2_IV_OFFSET, IEEE80211_HEADER);
1275 rt2x00_set_field32(&word, TXD_W2_AIFS, entry->queue->aifs);
1276 rt2x00_set_field32(&word, TXD_W2_CWMIN, entry->queue->cw_min);
1277 rt2x00_set_field32(&word, TXD_W2_CWMAX, entry->queue->cw_max);
1278 rt2x00_desc_write(txd, 2, word);
1279
1280 word = rt2x00_desc_read(txd, 3);
1281 rt2x00_set_field32(&word, TXD_W3_PLCP_SIGNAL, txdesc->u.plcp.signal);
1282 rt2x00_set_field32(&word, TXD_W3_PLCP_SERVICE, txdesc->u.plcp.service);
1283 rt2x00_set_field32(&word, TXD_W3_PLCP_LENGTH_LOW,
1284 txdesc->u.plcp.length_low);
1285 rt2x00_set_field32(&word, TXD_W3_PLCP_LENGTH_HIGH,
1286 txdesc->u.plcp.length_high);
1287 rt2x00_desc_write(txd, 3, word);
1288
1289 word = rt2x00_desc_read(txd, 10);
1290 rt2x00_set_field32(&word, TXD_W10_RTS,
1291 test_bit(ENTRY_TXD_RTS_FRAME, &txdesc->flags));
1292 rt2x00_desc_write(txd, 10, word);
1293
1294 /*
1295 * Writing TXD word 0 must the last to prevent a race condition with
1296 * the device, whereby the device may take hold of the TXD before we
1297 * finished updating it.
1298 */
1299 word = rt2x00_desc_read(txd, 0);
1300 rt2x00_set_field32(&word, TXD_W0_OWNER_NIC, 1);
1301 rt2x00_set_field32(&word, TXD_W0_VALID, 1);
1302 rt2x00_set_field32(&word, TXD_W0_MORE_FRAG,
1303 test_bit(ENTRY_TXD_MORE_FRAG, &txdesc->flags));
1304 rt2x00_set_field32(&word, TXD_W0_ACK,
1305 test_bit(ENTRY_TXD_ACK, &txdesc->flags));
1306 rt2x00_set_field32(&word, TXD_W0_TIMESTAMP,
1307 test_bit(ENTRY_TXD_REQ_TIMESTAMP, &txdesc->flags));
1308 rt2x00_set_field32(&word, TXD_W0_OFDM,
1309 (txdesc->rate_mode == RATE_MODE_OFDM));
1310 rt2x00_set_field32(&word, TXD_W0_CIPHER_OWNER, 1);
1311 rt2x00_set_field32(&word, TXD_W0_IFS, txdesc->u.plcp.ifs);
1312 rt2x00_set_field32(&word, TXD_W0_RETRY_MODE,
1313 test_bit(ENTRY_TXD_RETRY_MODE, &txdesc->flags));
1314 rt2x00_set_field32(&word, TXD_W0_DATABYTE_COUNT, txdesc->length);
1315 rt2x00_set_field32(&word, TXD_W0_CIPHER_ALG, CIPHER_NONE);
1316 rt2x00_desc_write(txd, 0, word);
1317
1318 /*
1319 * Register descriptor details in skb frame descriptor.
1320 */
1321 skbdesc->desc = txd;
1322 skbdesc->desc_len = TXD_DESC_SIZE;
1323 }
1324
1325 /*
1326 * TX data initialization
1327 */
rt2500pci_write_beacon(struct queue_entry * entry,struct txentry_desc * txdesc)1328 static void rt2500pci_write_beacon(struct queue_entry *entry,
1329 struct txentry_desc *txdesc)
1330 {
1331 struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
1332 u32 reg;
1333
1334 /*
1335 * Disable beaconing while we are reloading the beacon data,
1336 * otherwise we might be sending out invalid data.
1337 */
1338 reg = rt2x00mmio_register_read(rt2x00dev, CSR14);
1339 rt2x00_set_field32(®, CSR14_BEACON_GEN, 0);
1340 rt2x00mmio_register_write(rt2x00dev, CSR14, reg);
1341
1342 if (rt2x00queue_map_txskb(entry)) {
1343 rt2x00_err(rt2x00dev, "Fail to map beacon, aborting\n");
1344 goto out;
1345 }
1346
1347 /*
1348 * Write the TX descriptor for the beacon.
1349 */
1350 rt2500pci_write_tx_desc(entry, txdesc);
1351
1352 /*
1353 * Dump beacon to userspace through debugfs.
1354 */
1355 rt2x00debug_dump_frame(rt2x00dev, DUMP_FRAME_BEACON, entry);
1356 out:
1357 /*
1358 * Enable beaconing again.
1359 */
1360 rt2x00_set_field32(®, CSR14_BEACON_GEN, 1);
1361 rt2x00mmio_register_write(rt2x00dev, CSR14, reg);
1362 }
1363
1364 /*
1365 * RX control handlers
1366 */
rt2500pci_fill_rxdone(struct queue_entry * entry,struct rxdone_entry_desc * rxdesc)1367 static void rt2500pci_fill_rxdone(struct queue_entry *entry,
1368 struct rxdone_entry_desc *rxdesc)
1369 {
1370 struct queue_entry_priv_mmio *entry_priv = entry->priv_data;
1371 u32 word0;
1372 u32 word2;
1373
1374 word0 = rt2x00_desc_read(entry_priv->desc, 0);
1375 word2 = rt2x00_desc_read(entry_priv->desc, 2);
1376
1377 if (rt2x00_get_field32(word0, RXD_W0_CRC_ERROR))
1378 rxdesc->flags |= RX_FLAG_FAILED_FCS_CRC;
1379 if (rt2x00_get_field32(word0, RXD_W0_PHYSICAL_ERROR))
1380 rxdesc->flags |= RX_FLAG_FAILED_PLCP_CRC;
1381
1382 /*
1383 * Obtain the status about this packet.
1384 * When frame was received with an OFDM bitrate,
1385 * the signal is the PLCP value. If it was received with
1386 * a CCK bitrate the signal is the rate in 100kbit/s.
1387 */
1388 rxdesc->signal = rt2x00_get_field32(word2, RXD_W2_SIGNAL);
1389 rxdesc->rssi = rt2x00_get_field32(word2, RXD_W2_RSSI) -
1390 entry->queue->rt2x00dev->rssi_offset;
1391 rxdesc->size = rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT);
1392
1393 if (rt2x00_get_field32(word0, RXD_W0_OFDM))
1394 rxdesc->dev_flags |= RXDONE_SIGNAL_PLCP;
1395 else
1396 rxdesc->dev_flags |= RXDONE_SIGNAL_BITRATE;
1397 if (rt2x00_get_field32(word0, RXD_W0_MY_BSS))
1398 rxdesc->dev_flags |= RXDONE_MY_BSS;
1399 }
1400
1401 /*
1402 * Interrupt functions.
1403 */
rt2500pci_txdone(struct rt2x00_dev * rt2x00dev,const enum data_queue_qid queue_idx)1404 static void rt2500pci_txdone(struct rt2x00_dev *rt2x00dev,
1405 const enum data_queue_qid queue_idx)
1406 {
1407 struct data_queue *queue = rt2x00queue_get_tx_queue(rt2x00dev, queue_idx);
1408 struct queue_entry_priv_mmio *entry_priv;
1409 struct queue_entry *entry;
1410 struct txdone_entry_desc txdesc;
1411 u32 word;
1412
1413 while (!rt2x00queue_empty(queue)) {
1414 entry = rt2x00queue_get_entry(queue, Q_INDEX_DONE);
1415 entry_priv = entry->priv_data;
1416 word = rt2x00_desc_read(entry_priv->desc, 0);
1417
1418 if (rt2x00_get_field32(word, TXD_W0_OWNER_NIC) ||
1419 !rt2x00_get_field32(word, TXD_W0_VALID))
1420 break;
1421
1422 /*
1423 * Obtain the status about this packet.
1424 */
1425 txdesc.flags = 0;
1426 switch (rt2x00_get_field32(word, TXD_W0_RESULT)) {
1427 case 0: /* Success */
1428 case 1: /* Success with retry */
1429 __set_bit(TXDONE_SUCCESS, &txdesc.flags);
1430 break;
1431 case 2: /* Failure, excessive retries */
1432 __set_bit(TXDONE_EXCESSIVE_RETRY, &txdesc.flags);
1433 /* Don't break, this is a failed frame! */
1434 default: /* Failure */
1435 __set_bit(TXDONE_FAILURE, &txdesc.flags);
1436 }
1437 txdesc.retry = rt2x00_get_field32(word, TXD_W0_RETRY_COUNT);
1438
1439 rt2x00lib_txdone(entry, &txdesc);
1440 }
1441 }
1442
rt2500pci_enable_interrupt(struct rt2x00_dev * rt2x00dev,struct rt2x00_field32 irq_field)1443 static inline void rt2500pci_enable_interrupt(struct rt2x00_dev *rt2x00dev,
1444 struct rt2x00_field32 irq_field)
1445 {
1446 u32 reg;
1447
1448 /*
1449 * Enable a single interrupt. The interrupt mask register
1450 * access needs locking.
1451 */
1452 spin_lock_irq(&rt2x00dev->irqmask_lock);
1453
1454 reg = rt2x00mmio_register_read(rt2x00dev, CSR8);
1455 rt2x00_set_field32(®, irq_field, 0);
1456 rt2x00mmio_register_write(rt2x00dev, CSR8, reg);
1457
1458 spin_unlock_irq(&rt2x00dev->irqmask_lock);
1459 }
1460
rt2500pci_txstatus_tasklet(unsigned long data)1461 static void rt2500pci_txstatus_tasklet(unsigned long data)
1462 {
1463 struct rt2x00_dev *rt2x00dev = (struct rt2x00_dev *)data;
1464 u32 reg;
1465
1466 /*
1467 * Handle all tx queues.
1468 */
1469 rt2500pci_txdone(rt2x00dev, QID_ATIM);
1470 rt2500pci_txdone(rt2x00dev, QID_AC_VO);
1471 rt2500pci_txdone(rt2x00dev, QID_AC_VI);
1472
1473 /*
1474 * Enable all TXDONE interrupts again.
1475 */
1476 if (test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags)) {
1477 spin_lock_irq(&rt2x00dev->irqmask_lock);
1478
1479 reg = rt2x00mmio_register_read(rt2x00dev, CSR8);
1480 rt2x00_set_field32(®, CSR8_TXDONE_TXRING, 0);
1481 rt2x00_set_field32(®, CSR8_TXDONE_ATIMRING, 0);
1482 rt2x00_set_field32(®, CSR8_TXDONE_PRIORING, 0);
1483 rt2x00mmio_register_write(rt2x00dev, CSR8, reg);
1484
1485 spin_unlock_irq(&rt2x00dev->irqmask_lock);
1486 }
1487 }
1488
rt2500pci_tbtt_tasklet(unsigned long data)1489 static void rt2500pci_tbtt_tasklet(unsigned long data)
1490 {
1491 struct rt2x00_dev *rt2x00dev = (struct rt2x00_dev *)data;
1492 rt2x00lib_beacondone(rt2x00dev);
1493 if (test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
1494 rt2500pci_enable_interrupt(rt2x00dev, CSR8_TBCN_EXPIRE);
1495 }
1496
rt2500pci_rxdone_tasklet(unsigned long data)1497 static void rt2500pci_rxdone_tasklet(unsigned long data)
1498 {
1499 struct rt2x00_dev *rt2x00dev = (struct rt2x00_dev *)data;
1500 if (rt2x00mmio_rxdone(rt2x00dev))
1501 tasklet_schedule(&rt2x00dev->rxdone_tasklet);
1502 else if (test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
1503 rt2500pci_enable_interrupt(rt2x00dev, CSR8_RXDONE);
1504 }
1505
rt2500pci_interrupt(int irq,void * dev_instance)1506 static irqreturn_t rt2500pci_interrupt(int irq, void *dev_instance)
1507 {
1508 struct rt2x00_dev *rt2x00dev = dev_instance;
1509 u32 reg, mask;
1510
1511 /*
1512 * Get the interrupt sources & saved to local variable.
1513 * Write register value back to clear pending interrupts.
1514 */
1515 reg = rt2x00mmio_register_read(rt2x00dev, CSR7);
1516 rt2x00mmio_register_write(rt2x00dev, CSR7, reg);
1517
1518 if (!reg)
1519 return IRQ_NONE;
1520
1521 if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
1522 return IRQ_HANDLED;
1523
1524 mask = reg;
1525
1526 /*
1527 * Schedule tasklets for interrupt handling.
1528 */
1529 if (rt2x00_get_field32(reg, CSR7_TBCN_EXPIRE))
1530 tasklet_hi_schedule(&rt2x00dev->tbtt_tasklet);
1531
1532 if (rt2x00_get_field32(reg, CSR7_RXDONE))
1533 tasklet_schedule(&rt2x00dev->rxdone_tasklet);
1534
1535 if (rt2x00_get_field32(reg, CSR7_TXDONE_ATIMRING) ||
1536 rt2x00_get_field32(reg, CSR7_TXDONE_PRIORING) ||
1537 rt2x00_get_field32(reg, CSR7_TXDONE_TXRING)) {
1538 tasklet_schedule(&rt2x00dev->txstatus_tasklet);
1539 /*
1540 * Mask out all txdone interrupts.
1541 */
1542 rt2x00_set_field32(&mask, CSR8_TXDONE_TXRING, 1);
1543 rt2x00_set_field32(&mask, CSR8_TXDONE_ATIMRING, 1);
1544 rt2x00_set_field32(&mask, CSR8_TXDONE_PRIORING, 1);
1545 }
1546
1547 /*
1548 * Disable all interrupts for which a tasklet was scheduled right now,
1549 * the tasklet will reenable the appropriate interrupts.
1550 */
1551 spin_lock(&rt2x00dev->irqmask_lock);
1552
1553 reg = rt2x00mmio_register_read(rt2x00dev, CSR8);
1554 reg |= mask;
1555 rt2x00mmio_register_write(rt2x00dev, CSR8, reg);
1556
1557 spin_unlock(&rt2x00dev->irqmask_lock);
1558
1559 return IRQ_HANDLED;
1560 }
1561
1562 /*
1563 * Device probe functions.
1564 */
rt2500pci_validate_eeprom(struct rt2x00_dev * rt2x00dev)1565 static int rt2500pci_validate_eeprom(struct rt2x00_dev *rt2x00dev)
1566 {
1567 struct eeprom_93cx6 eeprom;
1568 u32 reg;
1569 u16 word;
1570 u8 *mac;
1571
1572 reg = rt2x00mmio_register_read(rt2x00dev, CSR21);
1573
1574 eeprom.data = rt2x00dev;
1575 eeprom.register_read = rt2500pci_eepromregister_read;
1576 eeprom.register_write = rt2500pci_eepromregister_write;
1577 eeprom.width = rt2x00_get_field32(reg, CSR21_TYPE_93C46) ?
1578 PCI_EEPROM_WIDTH_93C46 : PCI_EEPROM_WIDTH_93C66;
1579 eeprom.reg_data_in = 0;
1580 eeprom.reg_data_out = 0;
1581 eeprom.reg_data_clock = 0;
1582 eeprom.reg_chip_select = 0;
1583
1584 eeprom_93cx6_multiread(&eeprom, EEPROM_BASE, rt2x00dev->eeprom,
1585 EEPROM_SIZE / sizeof(u16));
1586
1587 /*
1588 * Start validation of the data that has been read.
1589 */
1590 mac = rt2x00_eeprom_addr(rt2x00dev, EEPROM_MAC_ADDR_0);
1591 rt2x00lib_set_mac_address(rt2x00dev, mac);
1592
1593 word = rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA);
1594 if (word == 0xffff) {
1595 rt2x00_set_field16(&word, EEPROM_ANTENNA_NUM, 2);
1596 rt2x00_set_field16(&word, EEPROM_ANTENNA_TX_DEFAULT,
1597 ANTENNA_SW_DIVERSITY);
1598 rt2x00_set_field16(&word, EEPROM_ANTENNA_RX_DEFAULT,
1599 ANTENNA_SW_DIVERSITY);
1600 rt2x00_set_field16(&word, EEPROM_ANTENNA_LED_MODE,
1601 LED_MODE_DEFAULT);
1602 rt2x00_set_field16(&word, EEPROM_ANTENNA_DYN_TXAGC, 0);
1603 rt2x00_set_field16(&word, EEPROM_ANTENNA_HARDWARE_RADIO, 0);
1604 rt2x00_set_field16(&word, EEPROM_ANTENNA_RF_TYPE, RF2522);
1605 rt2x00_eeprom_write(rt2x00dev, EEPROM_ANTENNA, word);
1606 rt2x00_eeprom_dbg(rt2x00dev, "Antenna: 0x%04x\n", word);
1607 }
1608
1609 word = rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC);
1610 if (word == 0xffff) {
1611 rt2x00_set_field16(&word, EEPROM_NIC_CARDBUS_ACCEL, 0);
1612 rt2x00_set_field16(&word, EEPROM_NIC_DYN_BBP_TUNE, 0);
1613 rt2x00_set_field16(&word, EEPROM_NIC_CCK_TX_POWER, 0);
1614 rt2x00_eeprom_write(rt2x00dev, EEPROM_NIC, word);
1615 rt2x00_eeprom_dbg(rt2x00dev, "NIC: 0x%04x\n", word);
1616 }
1617
1618 word = rt2x00_eeprom_read(rt2x00dev, EEPROM_CALIBRATE_OFFSET);
1619 if (word == 0xffff) {
1620 rt2x00_set_field16(&word, EEPROM_CALIBRATE_OFFSET_RSSI,
1621 DEFAULT_RSSI_OFFSET);
1622 rt2x00_eeprom_write(rt2x00dev, EEPROM_CALIBRATE_OFFSET, word);
1623 rt2x00_eeprom_dbg(rt2x00dev, "Calibrate offset: 0x%04x\n",
1624 word);
1625 }
1626
1627 return 0;
1628 }
1629
rt2500pci_init_eeprom(struct rt2x00_dev * rt2x00dev)1630 static int rt2500pci_init_eeprom(struct rt2x00_dev *rt2x00dev)
1631 {
1632 u32 reg;
1633 u16 value;
1634 u16 eeprom;
1635
1636 /*
1637 * Read EEPROM word for configuration.
1638 */
1639 eeprom = rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA);
1640
1641 /*
1642 * Identify RF chipset.
1643 */
1644 value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RF_TYPE);
1645 reg = rt2x00mmio_register_read(rt2x00dev, CSR0);
1646 rt2x00_set_chip(rt2x00dev, RT2560, value,
1647 rt2x00_get_field32(reg, CSR0_REVISION));
1648
1649 if (!rt2x00_rf(rt2x00dev, RF2522) &&
1650 !rt2x00_rf(rt2x00dev, RF2523) &&
1651 !rt2x00_rf(rt2x00dev, RF2524) &&
1652 !rt2x00_rf(rt2x00dev, RF2525) &&
1653 !rt2x00_rf(rt2x00dev, RF2525E) &&
1654 !rt2x00_rf(rt2x00dev, RF5222)) {
1655 rt2x00_err(rt2x00dev, "Invalid RF chipset detected\n");
1656 return -ENODEV;
1657 }
1658
1659 /*
1660 * Identify default antenna configuration.
1661 */
1662 rt2x00dev->default_ant.tx =
1663 rt2x00_get_field16(eeprom, EEPROM_ANTENNA_TX_DEFAULT);
1664 rt2x00dev->default_ant.rx =
1665 rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RX_DEFAULT);
1666
1667 /*
1668 * Store led mode, for correct led behaviour.
1669 */
1670 #ifdef CONFIG_RT2X00_LIB_LEDS
1671 value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_LED_MODE);
1672
1673 rt2500pci_init_led(rt2x00dev, &rt2x00dev->led_radio, LED_TYPE_RADIO);
1674 if (value == LED_MODE_TXRX_ACTIVITY ||
1675 value == LED_MODE_DEFAULT ||
1676 value == LED_MODE_ASUS)
1677 rt2500pci_init_led(rt2x00dev, &rt2x00dev->led_qual,
1678 LED_TYPE_ACTIVITY);
1679 #endif /* CONFIG_RT2X00_LIB_LEDS */
1680
1681 /*
1682 * Detect if this device has an hardware controlled radio.
1683 */
1684 if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_HARDWARE_RADIO)) {
1685 __set_bit(CAPABILITY_HW_BUTTON, &rt2x00dev->cap_flags);
1686 /*
1687 * On this device RFKILL initialized during probe does not work.
1688 */
1689 __set_bit(REQUIRE_DELAYED_RFKILL, &rt2x00dev->cap_flags);
1690 }
1691
1692 /*
1693 * Check if the BBP tuning should be enabled.
1694 */
1695 eeprom = rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC);
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 eeprom = rt2x00_eeprom_read(rt2x00dev, EEPROM_CALIBRATE_OFFSET);
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
rt2500pci_probe_hw_mode(struct rt2x00_dev * rt2x00dev)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 ieee80211_hw_set(rt2x00dev->hw, PS_NULLFUNC_STACK);
1875 ieee80211_hw_set(rt2x00dev->hw, SUPPORTS_PS);
1876 ieee80211_hw_set(rt2x00dev->hw, HOST_BROADCAST_PS_BUFFERING);
1877 ieee80211_hw_set(rt2x00dev->hw, SIGNAL_DBM);
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 * Disable powersaving as default.
1886 */
1887 rt2x00dev->hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
1888
1889 /*
1890 * Initialize hw_mode information.
1891 */
1892 spec->supported_bands = SUPPORT_BAND_2GHZ;
1893 spec->supported_rates = SUPPORT_RATE_CCK | SUPPORT_RATE_OFDM;
1894
1895 if (rt2x00_rf(rt2x00dev, RF2522)) {
1896 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2522);
1897 spec->channels = rf_vals_bg_2522;
1898 } else if (rt2x00_rf(rt2x00dev, RF2523)) {
1899 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2523);
1900 spec->channels = rf_vals_bg_2523;
1901 } else if (rt2x00_rf(rt2x00dev, RF2524)) {
1902 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2524);
1903 spec->channels = rf_vals_bg_2524;
1904 } else if (rt2x00_rf(rt2x00dev, RF2525)) {
1905 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2525);
1906 spec->channels = rf_vals_bg_2525;
1907 } else if (rt2x00_rf(rt2x00dev, RF2525E)) {
1908 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2525e);
1909 spec->channels = rf_vals_bg_2525e;
1910 } else if (rt2x00_rf(rt2x00dev, RF5222)) {
1911 spec->supported_bands |= SUPPORT_BAND_5GHZ;
1912 spec->num_channels = ARRAY_SIZE(rf_vals_5222);
1913 spec->channels = rf_vals_5222;
1914 }
1915
1916 /*
1917 * Create channel information array
1918 */
1919 info = kcalloc(spec->num_channels, sizeof(*info), GFP_KERNEL);
1920 if (!info)
1921 return -ENOMEM;
1922
1923 spec->channels_info = info;
1924
1925 tx_power = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_START);
1926 for (i = 0; i < 14; i++) {
1927 info[i].max_power = MAX_TXPOWER;
1928 info[i].default_power1 = TXPOWER_FROM_DEV(tx_power[i]);
1929 }
1930
1931 if (spec->num_channels > 14) {
1932 for (i = 14; i < spec->num_channels; i++) {
1933 info[i].max_power = MAX_TXPOWER;
1934 info[i].default_power1 = DEFAULT_TXPOWER;
1935 }
1936 }
1937
1938 return 0;
1939 }
1940
rt2500pci_probe_hw(struct rt2x00_dev * rt2x00dev)1941 static int rt2500pci_probe_hw(struct rt2x00_dev *rt2x00dev)
1942 {
1943 int retval;
1944 u32 reg;
1945
1946 /*
1947 * Allocate eeprom data.
1948 */
1949 retval = rt2500pci_validate_eeprom(rt2x00dev);
1950 if (retval)
1951 return retval;
1952
1953 retval = rt2500pci_init_eeprom(rt2x00dev);
1954 if (retval)
1955 return retval;
1956
1957 /*
1958 * Enable rfkill polling by setting GPIO direction of the
1959 * rfkill switch GPIO pin correctly.
1960 */
1961 reg = rt2x00mmio_register_read(rt2x00dev, GPIOCSR);
1962 rt2x00_set_field32(®, GPIOCSR_DIR0, 1);
1963 rt2x00mmio_register_write(rt2x00dev, GPIOCSR, reg);
1964
1965 /*
1966 * Initialize hw specifications.
1967 */
1968 retval = rt2500pci_probe_hw_mode(rt2x00dev);
1969 if (retval)
1970 return retval;
1971
1972 /*
1973 * This device requires the atim queue and DMA-mapped skbs.
1974 */
1975 __set_bit(REQUIRE_ATIM_QUEUE, &rt2x00dev->cap_flags);
1976 __set_bit(REQUIRE_DMA, &rt2x00dev->cap_flags);
1977 __set_bit(REQUIRE_SW_SEQNO, &rt2x00dev->cap_flags);
1978
1979 /*
1980 * Set the rssi offset.
1981 */
1982 rt2x00dev->rssi_offset = DEFAULT_RSSI_OFFSET;
1983
1984 return 0;
1985 }
1986
1987 /*
1988 * IEEE80211 stack callback functions.
1989 */
rt2500pci_get_tsf(struct ieee80211_hw * hw,struct ieee80211_vif * vif)1990 static u64 rt2500pci_get_tsf(struct ieee80211_hw *hw,
1991 struct ieee80211_vif *vif)
1992 {
1993 struct rt2x00_dev *rt2x00dev = hw->priv;
1994 u64 tsf;
1995 u32 reg;
1996
1997 reg = rt2x00mmio_register_read(rt2x00dev, CSR17);
1998 tsf = (u64) rt2x00_get_field32(reg, CSR17_HIGH_TSFTIMER) << 32;
1999 reg = rt2x00mmio_register_read(rt2x00dev, CSR16);
2000 tsf |= rt2x00_get_field32(reg, CSR16_LOW_TSFTIMER);
2001
2002 return tsf;
2003 }
2004
rt2500pci_tx_last_beacon(struct ieee80211_hw * hw)2005 static int rt2500pci_tx_last_beacon(struct ieee80211_hw *hw)
2006 {
2007 struct rt2x00_dev *rt2x00dev = hw->priv;
2008 u32 reg;
2009
2010 reg = rt2x00mmio_register_read(rt2x00dev, CSR15);
2011 return rt2x00_get_field32(reg, CSR15_BEACON_SENT);
2012 }
2013
2014 static const struct ieee80211_ops rt2500pci_mac80211_ops = {
2015 .tx = rt2x00mac_tx,
2016 .start = rt2x00mac_start,
2017 .stop = rt2x00mac_stop,
2018 .add_interface = rt2x00mac_add_interface,
2019 .remove_interface = rt2x00mac_remove_interface,
2020 .config = rt2x00mac_config,
2021 .configure_filter = rt2x00mac_configure_filter,
2022 .sw_scan_start = rt2x00mac_sw_scan_start,
2023 .sw_scan_complete = rt2x00mac_sw_scan_complete,
2024 .get_stats = rt2x00mac_get_stats,
2025 .bss_info_changed = rt2x00mac_bss_info_changed,
2026 .conf_tx = rt2x00mac_conf_tx,
2027 .get_tsf = rt2500pci_get_tsf,
2028 .tx_last_beacon = rt2500pci_tx_last_beacon,
2029 .rfkill_poll = rt2x00mac_rfkill_poll,
2030 .flush = rt2x00mac_flush,
2031 .set_antenna = rt2x00mac_set_antenna,
2032 .get_antenna = rt2x00mac_get_antenna,
2033 .get_ringparam = rt2x00mac_get_ringparam,
2034 .tx_frames_pending = rt2x00mac_tx_frames_pending,
2035 };
2036
2037 static const struct rt2x00lib_ops rt2500pci_rt2x00_ops = {
2038 .irq_handler = rt2500pci_interrupt,
2039 .txstatus_tasklet = rt2500pci_txstatus_tasklet,
2040 .tbtt_tasklet = rt2500pci_tbtt_tasklet,
2041 .rxdone_tasklet = rt2500pci_rxdone_tasklet,
2042 .probe_hw = rt2500pci_probe_hw,
2043 .initialize = rt2x00mmio_initialize,
2044 .uninitialize = rt2x00mmio_uninitialize,
2045 .get_entry_state = rt2500pci_get_entry_state,
2046 .clear_entry = rt2500pci_clear_entry,
2047 .set_device_state = rt2500pci_set_device_state,
2048 .rfkill_poll = rt2500pci_rfkill_poll,
2049 .link_stats = rt2500pci_link_stats,
2050 .reset_tuner = rt2500pci_reset_tuner,
2051 .link_tuner = rt2500pci_link_tuner,
2052 .start_queue = rt2500pci_start_queue,
2053 .kick_queue = rt2500pci_kick_queue,
2054 .stop_queue = rt2500pci_stop_queue,
2055 .flush_queue = rt2x00mmio_flush_queue,
2056 .write_tx_desc = rt2500pci_write_tx_desc,
2057 .write_beacon = rt2500pci_write_beacon,
2058 .fill_rxdone = rt2500pci_fill_rxdone,
2059 .config_filter = rt2500pci_config_filter,
2060 .config_intf = rt2500pci_config_intf,
2061 .config_erp = rt2500pci_config_erp,
2062 .config_ant = rt2500pci_config_ant,
2063 .config = rt2500pci_config,
2064 };
2065
rt2500pci_queue_init(struct data_queue * queue)2066 static void rt2500pci_queue_init(struct data_queue *queue)
2067 {
2068 switch (queue->qid) {
2069 case QID_RX:
2070 queue->limit = 32;
2071 queue->data_size = DATA_FRAME_SIZE;
2072 queue->desc_size = RXD_DESC_SIZE;
2073 queue->priv_size = sizeof(struct queue_entry_priv_mmio);
2074 break;
2075
2076 case QID_AC_VO:
2077 case QID_AC_VI:
2078 case QID_AC_BE:
2079 case QID_AC_BK:
2080 queue->limit = 32;
2081 queue->data_size = DATA_FRAME_SIZE;
2082 queue->desc_size = TXD_DESC_SIZE;
2083 queue->priv_size = sizeof(struct queue_entry_priv_mmio);
2084 break;
2085
2086 case QID_BEACON:
2087 queue->limit = 1;
2088 queue->data_size = MGMT_FRAME_SIZE;
2089 queue->desc_size = TXD_DESC_SIZE;
2090 queue->priv_size = sizeof(struct queue_entry_priv_mmio);
2091 break;
2092
2093 case QID_ATIM:
2094 queue->limit = 8;
2095 queue->data_size = DATA_FRAME_SIZE;
2096 queue->desc_size = TXD_DESC_SIZE;
2097 queue->priv_size = sizeof(struct queue_entry_priv_mmio);
2098 break;
2099
2100 default:
2101 BUG();
2102 break;
2103 }
2104 }
2105
2106 static const struct rt2x00_ops rt2500pci_ops = {
2107 .name = KBUILD_MODNAME,
2108 .max_ap_intf = 1,
2109 .eeprom_size = EEPROM_SIZE,
2110 .rf_size = RF_SIZE,
2111 .tx_queues = NUM_TX_QUEUES,
2112 .queue_init = rt2500pci_queue_init,
2113 .lib = &rt2500pci_rt2x00_ops,
2114 .hw = &rt2500pci_mac80211_ops,
2115 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
2116 .debugfs = &rt2500pci_rt2x00debug,
2117 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
2118 };
2119
2120 /*
2121 * RT2500pci module information.
2122 */
2123 static const struct pci_device_id rt2500pci_device_table[] = {
2124 { PCI_DEVICE(0x1814, 0x0201) },
2125 { 0, }
2126 };
2127
2128 MODULE_AUTHOR(DRV_PROJECT);
2129 MODULE_VERSION(DRV_VERSION);
2130 MODULE_DESCRIPTION("Ralink RT2500 PCI & PCMCIA Wireless LAN driver.");
2131 MODULE_SUPPORTED_DEVICE("Ralink RT2560 PCI & PCMCIA chipset based cards");
2132 MODULE_DEVICE_TABLE(pci, rt2500pci_device_table);
2133 MODULE_LICENSE("GPL");
2134
rt2500pci_probe(struct pci_dev * pci_dev,const struct pci_device_id * id)2135 static int rt2500pci_probe(struct pci_dev *pci_dev,
2136 const struct pci_device_id *id)
2137 {
2138 return rt2x00pci_probe(pci_dev, &rt2500pci_ops);
2139 }
2140
2141 static struct pci_driver rt2500pci_driver = {
2142 .name = KBUILD_MODNAME,
2143 .id_table = rt2500pci_device_table,
2144 .probe = rt2500pci_probe,
2145 .remove = rt2x00pci_remove,
2146 .suspend = rt2x00pci_suspend,
2147 .resume = rt2x00pci_resume,
2148 };
2149
2150 module_pci_driver(rt2500pci_driver);
2151
