1 /*
2 Copyright (C) 2004 - 2009 Ivo van Doorn <IvDoorn@gmail.com>
3 <http://rt2x00.serialmonkey.com>
4
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
9
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the
17 Free Software Foundation, Inc.,
18 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19 */
20
21 /*
22 Module: rt61pci
23 Abstract: rt61pci device specific routines.
24 Supported chipsets: RT2561, RT2561s, RT2661.
25 */
26
27 #include <linux/crc-itu-t.h>
28 #include <linux/delay.h>
29 #include <linux/etherdevice.h>
30 #include <linux/init.h>
31 #include <linux/kernel.h>
32 #include <linux/module.h>
33 #include <linux/slab.h>
34 #include <linux/pci.h>
35 #include <linux/eeprom_93cx6.h>
36
37 #include "rt2x00.h"
38 #include "rt2x00pci.h"
39 #include "rt61pci.h"
40
41 /*
42 * Allow hardware encryption to be disabled.
43 */
44 static bool modparam_nohwcrypt = false;
45 module_param_named(nohwcrypt, modparam_nohwcrypt, bool, S_IRUGO);
46 MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption.");
47
48 /*
49 * Register access.
50 * BBP and RF register require indirect register access,
51 * and use the CSR registers PHY_CSR3 and PHY_CSR4 to achieve this.
52 * These indirect registers work with busy bits,
53 * and we will try maximal REGISTER_BUSY_COUNT times to access
54 * the register while taking a REGISTER_BUSY_DELAY us delay
55 * between each attempt. When the busy bit is still set at that time,
56 * the access attempt is considered to have failed,
57 * and we will print an error.
58 */
59 #define WAIT_FOR_BBP(__dev, __reg) \
60 rt2x00pci_regbusy_read((__dev), PHY_CSR3, PHY_CSR3_BUSY, (__reg))
61 #define WAIT_FOR_RF(__dev, __reg) \
62 rt2x00pci_regbusy_read((__dev), PHY_CSR4, PHY_CSR4_BUSY, (__reg))
63 #define WAIT_FOR_MCU(__dev, __reg) \
64 rt2x00pci_regbusy_read((__dev), H2M_MAILBOX_CSR, \
65 H2M_MAILBOX_CSR_OWNER, (__reg))
66
rt61pci_bbp_write(struct rt2x00_dev * rt2x00dev,const unsigned int word,const u8 value)67 static void rt61pci_bbp_write(struct rt2x00_dev *rt2x00dev,
68 const unsigned int word, const u8 value)
69 {
70 u32 reg;
71
72 mutex_lock(&rt2x00dev->csr_mutex);
73
74 /*
75 * Wait until the BBP becomes available, afterwards we
76 * can safely write the new data into the register.
77 */
78 if (WAIT_FOR_BBP(rt2x00dev, ®)) {
79 reg = 0;
80 rt2x00_set_field32(®, PHY_CSR3_VALUE, value);
81 rt2x00_set_field32(®, PHY_CSR3_REGNUM, word);
82 rt2x00_set_field32(®, PHY_CSR3_BUSY, 1);
83 rt2x00_set_field32(®, PHY_CSR3_READ_CONTROL, 0);
84
85 rt2x00pci_register_write(rt2x00dev, PHY_CSR3, reg);
86 }
87
88 mutex_unlock(&rt2x00dev->csr_mutex);
89 }
90
rt61pci_bbp_read(struct rt2x00_dev * rt2x00dev,const unsigned int word,u8 * value)91 static void rt61pci_bbp_read(struct rt2x00_dev *rt2x00dev,
92 const unsigned int word, u8 *value)
93 {
94 u32 reg;
95
96 mutex_lock(&rt2x00dev->csr_mutex);
97
98 /*
99 * Wait until the BBP becomes available, afterwards we
100 * can safely write the read request into the register.
101 * After the data has been written, we wait until hardware
102 * returns the correct value, if at any time the register
103 * doesn't become available in time, reg will be 0xffffffff
104 * which means we return 0xff to the caller.
105 */
106 if (WAIT_FOR_BBP(rt2x00dev, ®)) {
107 reg = 0;
108 rt2x00_set_field32(®, PHY_CSR3_REGNUM, word);
109 rt2x00_set_field32(®, PHY_CSR3_BUSY, 1);
110 rt2x00_set_field32(®, PHY_CSR3_READ_CONTROL, 1);
111
112 rt2x00pci_register_write(rt2x00dev, PHY_CSR3, reg);
113
114 WAIT_FOR_BBP(rt2x00dev, ®);
115 }
116
117 *value = rt2x00_get_field32(reg, PHY_CSR3_VALUE);
118
119 mutex_unlock(&rt2x00dev->csr_mutex);
120 }
121
rt61pci_rf_write(struct rt2x00_dev * rt2x00dev,const unsigned int word,const u32 value)122 static void rt61pci_rf_write(struct rt2x00_dev *rt2x00dev,
123 const unsigned int word, const u32 value)
124 {
125 u32 reg;
126
127 mutex_lock(&rt2x00dev->csr_mutex);
128
129 /*
130 * Wait until the RF becomes available, afterwards we
131 * can safely write the new data into the register.
132 */
133 if (WAIT_FOR_RF(rt2x00dev, ®)) {
134 reg = 0;
135 rt2x00_set_field32(®, PHY_CSR4_VALUE, value);
136 rt2x00_set_field32(®, PHY_CSR4_NUMBER_OF_BITS, 21);
137 rt2x00_set_field32(®, PHY_CSR4_IF_SELECT, 0);
138 rt2x00_set_field32(®, PHY_CSR4_BUSY, 1);
139
140 rt2x00pci_register_write(rt2x00dev, PHY_CSR4, reg);
141 rt2x00_rf_write(rt2x00dev, word, value);
142 }
143
144 mutex_unlock(&rt2x00dev->csr_mutex);
145 }
146
rt61pci_mcu_request(struct rt2x00_dev * rt2x00dev,const u8 command,const u8 token,const u8 arg0,const u8 arg1)147 static void rt61pci_mcu_request(struct rt2x00_dev *rt2x00dev,
148 const u8 command, const u8 token,
149 const u8 arg0, const u8 arg1)
150 {
151 u32 reg;
152
153 mutex_lock(&rt2x00dev->csr_mutex);
154
155 /*
156 * Wait until the MCU becomes available, afterwards we
157 * can safely write the new data into the register.
158 */
159 if (WAIT_FOR_MCU(rt2x00dev, ®)) {
160 rt2x00_set_field32(®, H2M_MAILBOX_CSR_OWNER, 1);
161 rt2x00_set_field32(®, H2M_MAILBOX_CSR_CMD_TOKEN, token);
162 rt2x00_set_field32(®, H2M_MAILBOX_CSR_ARG0, arg0);
163 rt2x00_set_field32(®, H2M_MAILBOX_CSR_ARG1, arg1);
164 rt2x00pci_register_write(rt2x00dev, H2M_MAILBOX_CSR, reg);
165
166 rt2x00pci_register_read(rt2x00dev, HOST_CMD_CSR, ®);
167 rt2x00_set_field32(®, HOST_CMD_CSR_HOST_COMMAND, command);
168 rt2x00_set_field32(®, HOST_CMD_CSR_INTERRUPT_MCU, 1);
169 rt2x00pci_register_write(rt2x00dev, HOST_CMD_CSR, reg);
170 }
171
172 mutex_unlock(&rt2x00dev->csr_mutex);
173
174 }
175
rt61pci_eepromregister_read(struct eeprom_93cx6 * eeprom)176 static void rt61pci_eepromregister_read(struct eeprom_93cx6 *eeprom)
177 {
178 struct rt2x00_dev *rt2x00dev = eeprom->data;
179 u32 reg;
180
181 rt2x00pci_register_read(rt2x00dev, E2PROM_CSR, ®);
182
183 eeprom->reg_data_in = !!rt2x00_get_field32(reg, E2PROM_CSR_DATA_IN);
184 eeprom->reg_data_out = !!rt2x00_get_field32(reg, E2PROM_CSR_DATA_OUT);
185 eeprom->reg_data_clock =
186 !!rt2x00_get_field32(reg, E2PROM_CSR_DATA_CLOCK);
187 eeprom->reg_chip_select =
188 !!rt2x00_get_field32(reg, E2PROM_CSR_CHIP_SELECT);
189 }
190
rt61pci_eepromregister_write(struct eeprom_93cx6 * eeprom)191 static void rt61pci_eepromregister_write(struct eeprom_93cx6 *eeprom)
192 {
193 struct rt2x00_dev *rt2x00dev = eeprom->data;
194 u32 reg = 0;
195
196 rt2x00_set_field32(®, E2PROM_CSR_DATA_IN, !!eeprom->reg_data_in);
197 rt2x00_set_field32(®, E2PROM_CSR_DATA_OUT, !!eeprom->reg_data_out);
198 rt2x00_set_field32(®, E2PROM_CSR_DATA_CLOCK,
199 !!eeprom->reg_data_clock);
200 rt2x00_set_field32(®, E2PROM_CSR_CHIP_SELECT,
201 !!eeprom->reg_chip_select);
202
203 rt2x00pci_register_write(rt2x00dev, E2PROM_CSR, reg);
204 }
205
206 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
207 static const struct rt2x00debug rt61pci_rt2x00debug = {
208 .owner = THIS_MODULE,
209 .csr = {
210 .read = rt2x00pci_register_read,
211 .write = rt2x00pci_register_write,
212 .flags = RT2X00DEBUGFS_OFFSET,
213 .word_base = CSR_REG_BASE,
214 .word_size = sizeof(u32),
215 .word_count = CSR_REG_SIZE / sizeof(u32),
216 },
217 .eeprom = {
218 .read = rt2x00_eeprom_read,
219 .write = rt2x00_eeprom_write,
220 .word_base = EEPROM_BASE,
221 .word_size = sizeof(u16),
222 .word_count = EEPROM_SIZE / sizeof(u16),
223 },
224 .bbp = {
225 .read = rt61pci_bbp_read,
226 .write = rt61pci_bbp_write,
227 .word_base = BBP_BASE,
228 .word_size = sizeof(u8),
229 .word_count = BBP_SIZE / sizeof(u8),
230 },
231 .rf = {
232 .read = rt2x00_rf_read,
233 .write = rt61pci_rf_write,
234 .word_base = RF_BASE,
235 .word_size = sizeof(u32),
236 .word_count = RF_SIZE / sizeof(u32),
237 },
238 };
239 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
240
rt61pci_rfkill_poll(struct rt2x00_dev * rt2x00dev)241 static int rt61pci_rfkill_poll(struct rt2x00_dev *rt2x00dev)
242 {
243 u32 reg;
244
245 rt2x00pci_register_read(rt2x00dev, MAC_CSR13, ®);
246 return rt2x00_get_field32(reg, MAC_CSR13_BIT5);
247 }
248
249 #ifdef CONFIG_RT2X00_LIB_LEDS
rt61pci_brightness_set(struct led_classdev * led_cdev,enum led_brightness brightness)250 static void rt61pci_brightness_set(struct led_classdev *led_cdev,
251 enum led_brightness brightness)
252 {
253 struct rt2x00_led *led =
254 container_of(led_cdev, struct rt2x00_led, led_dev);
255 unsigned int enabled = brightness != LED_OFF;
256 unsigned int a_mode =
257 (enabled && led->rt2x00dev->curr_band == IEEE80211_BAND_5GHZ);
258 unsigned int bg_mode =
259 (enabled && led->rt2x00dev->curr_band == IEEE80211_BAND_2GHZ);
260
261 if (led->type == LED_TYPE_RADIO) {
262 rt2x00_set_field16(&led->rt2x00dev->led_mcu_reg,
263 MCU_LEDCS_RADIO_STATUS, enabled);
264
265 rt61pci_mcu_request(led->rt2x00dev, MCU_LED, 0xff,
266 (led->rt2x00dev->led_mcu_reg & 0xff),
267 ((led->rt2x00dev->led_mcu_reg >> 8)));
268 } else if (led->type == LED_TYPE_ASSOC) {
269 rt2x00_set_field16(&led->rt2x00dev->led_mcu_reg,
270 MCU_LEDCS_LINK_BG_STATUS, bg_mode);
271 rt2x00_set_field16(&led->rt2x00dev->led_mcu_reg,
272 MCU_LEDCS_LINK_A_STATUS, a_mode);
273
274 rt61pci_mcu_request(led->rt2x00dev, MCU_LED, 0xff,
275 (led->rt2x00dev->led_mcu_reg & 0xff),
276 ((led->rt2x00dev->led_mcu_reg >> 8)));
277 } else if (led->type == LED_TYPE_QUALITY) {
278 /*
279 * The brightness is divided into 6 levels (0 - 5),
280 * this means we need to convert the brightness
281 * argument into the matching level within that range.
282 */
283 rt61pci_mcu_request(led->rt2x00dev, MCU_LED_STRENGTH, 0xff,
284 brightness / (LED_FULL / 6), 0);
285 }
286 }
287
rt61pci_blink_set(struct led_classdev * led_cdev,unsigned long * delay_on,unsigned long * delay_off)288 static int rt61pci_blink_set(struct led_classdev *led_cdev,
289 unsigned long *delay_on,
290 unsigned long *delay_off)
291 {
292 struct rt2x00_led *led =
293 container_of(led_cdev, struct rt2x00_led, led_dev);
294 u32 reg;
295
296 rt2x00pci_register_read(led->rt2x00dev, MAC_CSR14, ®);
297 rt2x00_set_field32(®, MAC_CSR14_ON_PERIOD, *delay_on);
298 rt2x00_set_field32(®, MAC_CSR14_OFF_PERIOD, *delay_off);
299 rt2x00pci_register_write(led->rt2x00dev, MAC_CSR14, reg);
300
301 return 0;
302 }
303
rt61pci_init_led(struct rt2x00_dev * rt2x00dev,struct rt2x00_led * led,enum led_type type)304 static void rt61pci_init_led(struct rt2x00_dev *rt2x00dev,
305 struct rt2x00_led *led,
306 enum led_type type)
307 {
308 led->rt2x00dev = rt2x00dev;
309 led->type = type;
310 led->led_dev.brightness_set = rt61pci_brightness_set;
311 led->led_dev.blink_set = rt61pci_blink_set;
312 led->flags = LED_INITIALIZED;
313 }
314 #endif /* CONFIG_RT2X00_LIB_LEDS */
315
316 /*
317 * Configuration handlers.
318 */
rt61pci_config_shared_key(struct rt2x00_dev * rt2x00dev,struct rt2x00lib_crypto * crypto,struct ieee80211_key_conf * key)319 static int rt61pci_config_shared_key(struct rt2x00_dev *rt2x00dev,
320 struct rt2x00lib_crypto *crypto,
321 struct ieee80211_key_conf *key)
322 {
323 struct hw_key_entry key_entry;
324 struct rt2x00_field32 field;
325 u32 mask;
326 u32 reg;
327
328 if (crypto->cmd == SET_KEY) {
329 /*
330 * rt2x00lib can't determine the correct free
331 * key_idx for shared keys. We have 1 register
332 * with key valid bits. The goal is simple, read
333 * the register, if that is full we have no slots
334 * left.
335 * Note that each BSS is allowed to have up to 4
336 * shared keys, so put a mask over the allowed
337 * entries.
338 */
339 mask = (0xf << crypto->bssidx);
340
341 rt2x00pci_register_read(rt2x00dev, SEC_CSR0, ®);
342 reg &= mask;
343
344 if (reg && reg == mask)
345 return -ENOSPC;
346
347 key->hw_key_idx += reg ? ffz(reg) : 0;
348
349 /*
350 * Upload key to hardware
351 */
352 memcpy(key_entry.key, crypto->key,
353 sizeof(key_entry.key));
354 memcpy(key_entry.tx_mic, crypto->tx_mic,
355 sizeof(key_entry.tx_mic));
356 memcpy(key_entry.rx_mic, crypto->rx_mic,
357 sizeof(key_entry.rx_mic));
358
359 reg = SHARED_KEY_ENTRY(key->hw_key_idx);
360 rt2x00pci_register_multiwrite(rt2x00dev, reg,
361 &key_entry, sizeof(key_entry));
362
363 /*
364 * The cipher types are stored over 2 registers.
365 * bssidx 0 and 1 keys are stored in SEC_CSR1 and
366 * bssidx 1 and 2 keys are stored in SEC_CSR5.
367 * Using the correct defines correctly will cause overhead,
368 * so just calculate the correct offset.
369 */
370 if (key->hw_key_idx < 8) {
371 field.bit_offset = (3 * key->hw_key_idx);
372 field.bit_mask = 0x7 << field.bit_offset;
373
374 rt2x00pci_register_read(rt2x00dev, SEC_CSR1, ®);
375 rt2x00_set_field32(®, field, crypto->cipher);
376 rt2x00pci_register_write(rt2x00dev, SEC_CSR1, reg);
377 } else {
378 field.bit_offset = (3 * (key->hw_key_idx - 8));
379 field.bit_mask = 0x7 << field.bit_offset;
380
381 rt2x00pci_register_read(rt2x00dev, SEC_CSR5, ®);
382 rt2x00_set_field32(®, field, crypto->cipher);
383 rt2x00pci_register_write(rt2x00dev, SEC_CSR5, reg);
384 }
385
386 /*
387 * The driver does not support the IV/EIV generation
388 * in hardware. However it doesn't support the IV/EIV
389 * inside the ieee80211 frame either, but requires it
390 * to be provided separately for the descriptor.
391 * rt2x00lib will cut the IV/EIV data out of all frames
392 * given to us by mac80211, but we must tell mac80211
393 * to generate the IV/EIV data.
394 */
395 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
396 }
397
398 /*
399 * SEC_CSR0 contains only single-bit fields to indicate
400 * a particular key is valid. Because using the FIELD32()
401 * defines directly will cause a lot of overhead, we use
402 * a calculation to determine the correct bit directly.
403 */
404 mask = 1 << key->hw_key_idx;
405
406 rt2x00pci_register_read(rt2x00dev, SEC_CSR0, ®);
407 if (crypto->cmd == SET_KEY)
408 reg |= mask;
409 else if (crypto->cmd == DISABLE_KEY)
410 reg &= ~mask;
411 rt2x00pci_register_write(rt2x00dev, SEC_CSR0, reg);
412
413 return 0;
414 }
415
rt61pci_config_pairwise_key(struct rt2x00_dev * rt2x00dev,struct rt2x00lib_crypto * crypto,struct ieee80211_key_conf * key)416 static int rt61pci_config_pairwise_key(struct rt2x00_dev *rt2x00dev,
417 struct rt2x00lib_crypto *crypto,
418 struct ieee80211_key_conf *key)
419 {
420 struct hw_pairwise_ta_entry addr_entry;
421 struct hw_key_entry key_entry;
422 u32 mask;
423 u32 reg;
424
425 if (crypto->cmd == SET_KEY) {
426 /*
427 * rt2x00lib can't determine the correct free
428 * key_idx for pairwise keys. We have 2 registers
429 * with key valid bits. The goal is simple: read
430 * the first register. If that is full, move to
431 * the next register.
432 * When both registers are full, we drop the key.
433 * Otherwise, we use the first invalid entry.
434 */
435 rt2x00pci_register_read(rt2x00dev, SEC_CSR2, ®);
436 if (reg && reg == ~0) {
437 key->hw_key_idx = 32;
438 rt2x00pci_register_read(rt2x00dev, SEC_CSR3, ®);
439 if (reg && reg == ~0)
440 return -ENOSPC;
441 }
442
443 key->hw_key_idx += reg ? ffz(reg) : 0;
444
445 /*
446 * Upload key to hardware
447 */
448 memcpy(key_entry.key, crypto->key,
449 sizeof(key_entry.key));
450 memcpy(key_entry.tx_mic, crypto->tx_mic,
451 sizeof(key_entry.tx_mic));
452 memcpy(key_entry.rx_mic, crypto->rx_mic,
453 sizeof(key_entry.rx_mic));
454
455 memset(&addr_entry, 0, sizeof(addr_entry));
456 memcpy(&addr_entry, crypto->address, ETH_ALEN);
457 addr_entry.cipher = crypto->cipher;
458
459 reg = PAIRWISE_KEY_ENTRY(key->hw_key_idx);
460 rt2x00pci_register_multiwrite(rt2x00dev, reg,
461 &key_entry, sizeof(key_entry));
462
463 reg = PAIRWISE_TA_ENTRY(key->hw_key_idx);
464 rt2x00pci_register_multiwrite(rt2x00dev, reg,
465 &addr_entry, sizeof(addr_entry));
466
467 /*
468 * Enable pairwise lookup table for given BSS idx.
469 * Without this, received frames will not be decrypted
470 * by the hardware.
471 */
472 rt2x00pci_register_read(rt2x00dev, SEC_CSR4, ®);
473 reg |= (1 << crypto->bssidx);
474 rt2x00pci_register_write(rt2x00dev, SEC_CSR4, reg);
475
476 /*
477 * The driver does not support the IV/EIV generation
478 * in hardware. However it doesn't support the IV/EIV
479 * inside the ieee80211 frame either, but requires it
480 * to be provided separately for the descriptor.
481 * rt2x00lib will cut the IV/EIV data out of all frames
482 * given to us by mac80211, but we must tell mac80211
483 * to generate the IV/EIV data.
484 */
485 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
486 }
487
488 /*
489 * SEC_CSR2 and SEC_CSR3 contain only single-bit fields to indicate
490 * a particular key is valid. Because using the FIELD32()
491 * defines directly will cause a lot of overhead, we use
492 * a calculation to determine the correct bit directly.
493 */
494 if (key->hw_key_idx < 32) {
495 mask = 1 << key->hw_key_idx;
496
497 rt2x00pci_register_read(rt2x00dev, SEC_CSR2, ®);
498 if (crypto->cmd == SET_KEY)
499 reg |= mask;
500 else if (crypto->cmd == DISABLE_KEY)
501 reg &= ~mask;
502 rt2x00pci_register_write(rt2x00dev, SEC_CSR2, reg);
503 } else {
504 mask = 1 << (key->hw_key_idx - 32);
505
506 rt2x00pci_register_read(rt2x00dev, SEC_CSR3, ®);
507 if (crypto->cmd == SET_KEY)
508 reg |= mask;
509 else if (crypto->cmd == DISABLE_KEY)
510 reg &= ~mask;
511 rt2x00pci_register_write(rt2x00dev, SEC_CSR3, reg);
512 }
513
514 return 0;
515 }
516
rt61pci_config_filter(struct rt2x00_dev * rt2x00dev,const unsigned int filter_flags)517 static void rt61pci_config_filter(struct rt2x00_dev *rt2x00dev,
518 const unsigned int filter_flags)
519 {
520 u32 reg;
521
522 /*
523 * Start configuration steps.
524 * Note that the version error will always be dropped
525 * and broadcast frames will always be accepted since
526 * there is no filter for it at this time.
527 */
528 rt2x00pci_register_read(rt2x00dev, TXRX_CSR0, ®);
529 rt2x00_set_field32(®, TXRX_CSR0_DROP_CRC,
530 !(filter_flags & FIF_FCSFAIL));
531 rt2x00_set_field32(®, TXRX_CSR0_DROP_PHYSICAL,
532 !(filter_flags & FIF_PLCPFAIL));
533 rt2x00_set_field32(®, TXRX_CSR0_DROP_CONTROL,
534 !(filter_flags & (FIF_CONTROL | FIF_PSPOLL)));
535 rt2x00_set_field32(®, TXRX_CSR0_DROP_NOT_TO_ME,
536 !(filter_flags & FIF_PROMISC_IN_BSS));
537 rt2x00_set_field32(®, TXRX_CSR0_DROP_TO_DS,
538 !(filter_flags & FIF_PROMISC_IN_BSS) &&
539 !rt2x00dev->intf_ap_count);
540 rt2x00_set_field32(®, TXRX_CSR0_DROP_VERSION_ERROR, 1);
541 rt2x00_set_field32(®, TXRX_CSR0_DROP_MULTICAST,
542 !(filter_flags & FIF_ALLMULTI));
543 rt2x00_set_field32(®, TXRX_CSR0_DROP_BROADCAST, 0);
544 rt2x00_set_field32(®, TXRX_CSR0_DROP_ACK_CTS,
545 !(filter_flags & FIF_CONTROL));
546 rt2x00pci_register_write(rt2x00dev, TXRX_CSR0, reg);
547 }
548
rt61pci_config_intf(struct rt2x00_dev * rt2x00dev,struct rt2x00_intf * intf,struct rt2x00intf_conf * conf,const unsigned int flags)549 static void rt61pci_config_intf(struct rt2x00_dev *rt2x00dev,
550 struct rt2x00_intf *intf,
551 struct rt2x00intf_conf *conf,
552 const unsigned int flags)
553 {
554 u32 reg;
555
556 if (flags & CONFIG_UPDATE_TYPE) {
557 /*
558 * Enable synchronisation.
559 */
560 rt2x00pci_register_read(rt2x00dev, TXRX_CSR9, ®);
561 rt2x00_set_field32(®, TXRX_CSR9_TSF_SYNC, conf->sync);
562 rt2x00pci_register_write(rt2x00dev, TXRX_CSR9, reg);
563 }
564
565 if (flags & CONFIG_UPDATE_MAC) {
566 reg = le32_to_cpu(conf->mac[1]);
567 rt2x00_set_field32(®, MAC_CSR3_UNICAST_TO_ME_MASK, 0xff);
568 conf->mac[1] = cpu_to_le32(reg);
569
570 rt2x00pci_register_multiwrite(rt2x00dev, MAC_CSR2,
571 conf->mac, sizeof(conf->mac));
572 }
573
574 if (flags & CONFIG_UPDATE_BSSID) {
575 reg = le32_to_cpu(conf->bssid[1]);
576 rt2x00_set_field32(®, MAC_CSR5_BSS_ID_MASK, 3);
577 conf->bssid[1] = cpu_to_le32(reg);
578
579 rt2x00pci_register_multiwrite(rt2x00dev, MAC_CSR4,
580 conf->bssid, sizeof(conf->bssid));
581 }
582 }
583
rt61pci_config_erp(struct rt2x00_dev * rt2x00dev,struct rt2x00lib_erp * erp,u32 changed)584 static void rt61pci_config_erp(struct rt2x00_dev *rt2x00dev,
585 struct rt2x00lib_erp *erp,
586 u32 changed)
587 {
588 u32 reg;
589
590 rt2x00pci_register_read(rt2x00dev, TXRX_CSR0, ®);
591 rt2x00_set_field32(®, TXRX_CSR0_RX_ACK_TIMEOUT, 0x32);
592 rt2x00_set_field32(®, TXRX_CSR0_TSF_OFFSET, IEEE80211_HEADER);
593 rt2x00pci_register_write(rt2x00dev, TXRX_CSR0, reg);
594
595 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
596 rt2x00pci_register_read(rt2x00dev, TXRX_CSR4, ®);
597 rt2x00_set_field32(®, TXRX_CSR4_AUTORESPOND_ENABLE, 1);
598 rt2x00_set_field32(®, TXRX_CSR4_AUTORESPOND_PREAMBLE,
599 !!erp->short_preamble);
600 rt2x00pci_register_write(rt2x00dev, TXRX_CSR4, reg);
601 }
602
603 if (changed & BSS_CHANGED_BASIC_RATES)
604 rt2x00pci_register_write(rt2x00dev, TXRX_CSR5,
605 erp->basic_rates);
606
607 if (changed & BSS_CHANGED_BEACON_INT) {
608 rt2x00pci_register_read(rt2x00dev, TXRX_CSR9, ®);
609 rt2x00_set_field32(®, TXRX_CSR9_BEACON_INTERVAL,
610 erp->beacon_int * 16);
611 rt2x00pci_register_write(rt2x00dev, TXRX_CSR9, reg);
612 }
613
614 if (changed & BSS_CHANGED_ERP_SLOT) {
615 rt2x00pci_register_read(rt2x00dev, MAC_CSR9, ®);
616 rt2x00_set_field32(®, MAC_CSR9_SLOT_TIME, erp->slot_time);
617 rt2x00pci_register_write(rt2x00dev, MAC_CSR9, reg);
618
619 rt2x00pci_register_read(rt2x00dev, MAC_CSR8, ®);
620 rt2x00_set_field32(®, MAC_CSR8_SIFS, erp->sifs);
621 rt2x00_set_field32(®, MAC_CSR8_SIFS_AFTER_RX_OFDM, 3);
622 rt2x00_set_field32(®, MAC_CSR8_EIFS, erp->eifs);
623 rt2x00pci_register_write(rt2x00dev, MAC_CSR8, reg);
624 }
625 }
626
rt61pci_config_antenna_5x(struct rt2x00_dev * rt2x00dev,struct antenna_setup * ant)627 static void rt61pci_config_antenna_5x(struct rt2x00_dev *rt2x00dev,
628 struct antenna_setup *ant)
629 {
630 u8 r3;
631 u8 r4;
632 u8 r77;
633
634 rt61pci_bbp_read(rt2x00dev, 3, &r3);
635 rt61pci_bbp_read(rt2x00dev, 4, &r4);
636 rt61pci_bbp_read(rt2x00dev, 77, &r77);
637
638 rt2x00_set_field8(&r3, BBP_R3_SMART_MODE, rt2x00_rf(rt2x00dev, RF5325));
639
640 /*
641 * Configure the RX antenna.
642 */
643 switch (ant->rx) {
644 case ANTENNA_HW_DIVERSITY:
645 rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA_CONTROL, 2);
646 rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END,
647 (rt2x00dev->curr_band != IEEE80211_BAND_5GHZ));
648 break;
649 case ANTENNA_A:
650 rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA_CONTROL, 1);
651 rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END, 0);
652 if (rt2x00dev->curr_band == IEEE80211_BAND_5GHZ)
653 rt2x00_set_field8(&r77, BBP_R77_RX_ANTENNA, 0);
654 else
655 rt2x00_set_field8(&r77, BBP_R77_RX_ANTENNA, 3);
656 break;
657 case ANTENNA_B:
658 default:
659 rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA_CONTROL, 1);
660 rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END, 0);
661 if (rt2x00dev->curr_band == IEEE80211_BAND_5GHZ)
662 rt2x00_set_field8(&r77, BBP_R77_RX_ANTENNA, 3);
663 else
664 rt2x00_set_field8(&r77, BBP_R77_RX_ANTENNA, 0);
665 break;
666 }
667
668 rt61pci_bbp_write(rt2x00dev, 77, r77);
669 rt61pci_bbp_write(rt2x00dev, 3, r3);
670 rt61pci_bbp_write(rt2x00dev, 4, r4);
671 }
672
rt61pci_config_antenna_2x(struct rt2x00_dev * rt2x00dev,struct antenna_setup * ant)673 static void rt61pci_config_antenna_2x(struct rt2x00_dev *rt2x00dev,
674 struct antenna_setup *ant)
675 {
676 u8 r3;
677 u8 r4;
678 u8 r77;
679
680 rt61pci_bbp_read(rt2x00dev, 3, &r3);
681 rt61pci_bbp_read(rt2x00dev, 4, &r4);
682 rt61pci_bbp_read(rt2x00dev, 77, &r77);
683
684 rt2x00_set_field8(&r3, BBP_R3_SMART_MODE, rt2x00_rf(rt2x00dev, RF2529));
685 rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END,
686 !test_bit(CAPABILITY_FRAME_TYPE, &rt2x00dev->cap_flags));
687
688 /*
689 * Configure the RX antenna.
690 */
691 switch (ant->rx) {
692 case ANTENNA_HW_DIVERSITY:
693 rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA_CONTROL, 2);
694 break;
695 case ANTENNA_A:
696 rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA_CONTROL, 1);
697 rt2x00_set_field8(&r77, BBP_R77_RX_ANTENNA, 3);
698 break;
699 case ANTENNA_B:
700 default:
701 rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA_CONTROL, 1);
702 rt2x00_set_field8(&r77, BBP_R77_RX_ANTENNA, 0);
703 break;
704 }
705
706 rt61pci_bbp_write(rt2x00dev, 77, r77);
707 rt61pci_bbp_write(rt2x00dev, 3, r3);
708 rt61pci_bbp_write(rt2x00dev, 4, r4);
709 }
710
rt61pci_config_antenna_2529_rx(struct rt2x00_dev * rt2x00dev,const int p1,const int p2)711 static void rt61pci_config_antenna_2529_rx(struct rt2x00_dev *rt2x00dev,
712 const int p1, const int p2)
713 {
714 u32 reg;
715
716 rt2x00pci_register_read(rt2x00dev, MAC_CSR13, ®);
717
718 rt2x00_set_field32(®, MAC_CSR13_BIT4, p1);
719 rt2x00_set_field32(®, MAC_CSR13_BIT12, 0);
720
721 rt2x00_set_field32(®, MAC_CSR13_BIT3, !p2);
722 rt2x00_set_field32(®, MAC_CSR13_BIT11, 0);
723
724 rt2x00pci_register_write(rt2x00dev, MAC_CSR13, reg);
725 }
726
rt61pci_config_antenna_2529(struct rt2x00_dev * rt2x00dev,struct antenna_setup * ant)727 static void rt61pci_config_antenna_2529(struct rt2x00_dev *rt2x00dev,
728 struct antenna_setup *ant)
729 {
730 u8 r3;
731 u8 r4;
732 u8 r77;
733
734 rt61pci_bbp_read(rt2x00dev, 3, &r3);
735 rt61pci_bbp_read(rt2x00dev, 4, &r4);
736 rt61pci_bbp_read(rt2x00dev, 77, &r77);
737
738 /*
739 * Configure the RX antenna.
740 */
741 switch (ant->rx) {
742 case ANTENNA_A:
743 rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA_CONTROL, 1);
744 rt2x00_set_field8(&r77, BBP_R77_RX_ANTENNA, 0);
745 rt61pci_config_antenna_2529_rx(rt2x00dev, 0, 0);
746 break;
747 case ANTENNA_HW_DIVERSITY:
748 /*
749 * FIXME: Antenna selection for the rf 2529 is very confusing
750 * in the legacy driver. Just default to antenna B until the
751 * legacy code can be properly translated into rt2x00 code.
752 */
753 case ANTENNA_B:
754 default:
755 rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA_CONTROL, 1);
756 rt2x00_set_field8(&r77, BBP_R77_RX_ANTENNA, 3);
757 rt61pci_config_antenna_2529_rx(rt2x00dev, 1, 1);
758 break;
759 }
760
761 rt61pci_bbp_write(rt2x00dev, 77, r77);
762 rt61pci_bbp_write(rt2x00dev, 3, r3);
763 rt61pci_bbp_write(rt2x00dev, 4, r4);
764 }
765
766 struct antenna_sel {
767 u8 word;
768 /*
769 * value[0] -> non-LNA
770 * value[1] -> LNA
771 */
772 u8 value[2];
773 };
774
775 static const struct antenna_sel antenna_sel_a[] = {
776 { 96, { 0x58, 0x78 } },
777 { 104, { 0x38, 0x48 } },
778 { 75, { 0xfe, 0x80 } },
779 { 86, { 0xfe, 0x80 } },
780 { 88, { 0xfe, 0x80 } },
781 { 35, { 0x60, 0x60 } },
782 { 97, { 0x58, 0x58 } },
783 { 98, { 0x58, 0x58 } },
784 };
785
786 static const struct antenna_sel antenna_sel_bg[] = {
787 { 96, { 0x48, 0x68 } },
788 { 104, { 0x2c, 0x3c } },
789 { 75, { 0xfe, 0x80 } },
790 { 86, { 0xfe, 0x80 } },
791 { 88, { 0xfe, 0x80 } },
792 { 35, { 0x50, 0x50 } },
793 { 97, { 0x48, 0x48 } },
794 { 98, { 0x48, 0x48 } },
795 };
796
rt61pci_config_ant(struct rt2x00_dev * rt2x00dev,struct antenna_setup * ant)797 static void rt61pci_config_ant(struct rt2x00_dev *rt2x00dev,
798 struct antenna_setup *ant)
799 {
800 const struct antenna_sel *sel;
801 unsigned int lna;
802 unsigned int i;
803 u32 reg;
804
805 /*
806 * We should never come here because rt2x00lib is supposed
807 * to catch this and send us the correct antenna explicitely.
808 */
809 BUG_ON(ant->rx == ANTENNA_SW_DIVERSITY ||
810 ant->tx == ANTENNA_SW_DIVERSITY);
811
812 if (rt2x00dev->curr_band == IEEE80211_BAND_5GHZ) {
813 sel = antenna_sel_a;
814 lna = test_bit(CAPABILITY_EXTERNAL_LNA_A, &rt2x00dev->cap_flags);
815 } else {
816 sel = antenna_sel_bg;
817 lna = test_bit(CAPABILITY_EXTERNAL_LNA_BG, &rt2x00dev->cap_flags);
818 }
819
820 for (i = 0; i < ARRAY_SIZE(antenna_sel_a); i++)
821 rt61pci_bbp_write(rt2x00dev, sel[i].word, sel[i].value[lna]);
822
823 rt2x00pci_register_read(rt2x00dev, PHY_CSR0, ®);
824
825 rt2x00_set_field32(®, PHY_CSR0_PA_PE_BG,
826 rt2x00dev->curr_band == IEEE80211_BAND_2GHZ);
827 rt2x00_set_field32(®, PHY_CSR0_PA_PE_A,
828 rt2x00dev->curr_band == IEEE80211_BAND_5GHZ);
829
830 rt2x00pci_register_write(rt2x00dev, PHY_CSR0, reg);
831
832 if (rt2x00_rf(rt2x00dev, RF5225) || rt2x00_rf(rt2x00dev, RF5325))
833 rt61pci_config_antenna_5x(rt2x00dev, ant);
834 else if (rt2x00_rf(rt2x00dev, RF2527))
835 rt61pci_config_antenna_2x(rt2x00dev, ant);
836 else if (rt2x00_rf(rt2x00dev, RF2529)) {
837 if (test_bit(CAPABILITY_DOUBLE_ANTENNA, &rt2x00dev->cap_flags))
838 rt61pci_config_antenna_2x(rt2x00dev, ant);
839 else
840 rt61pci_config_antenna_2529(rt2x00dev, ant);
841 }
842 }
843
rt61pci_config_lna_gain(struct rt2x00_dev * rt2x00dev,struct rt2x00lib_conf * libconf)844 static void rt61pci_config_lna_gain(struct rt2x00_dev *rt2x00dev,
845 struct rt2x00lib_conf *libconf)
846 {
847 u16 eeprom;
848 short lna_gain = 0;
849
850 if (libconf->conf->channel->band == IEEE80211_BAND_2GHZ) {
851 if (test_bit(CAPABILITY_EXTERNAL_LNA_BG, &rt2x00dev->cap_flags))
852 lna_gain += 14;
853
854 rt2x00_eeprom_read(rt2x00dev, EEPROM_RSSI_OFFSET_BG, &eeprom);
855 lna_gain -= rt2x00_get_field16(eeprom, EEPROM_RSSI_OFFSET_BG_1);
856 } else {
857 if (test_bit(CAPABILITY_EXTERNAL_LNA_A, &rt2x00dev->cap_flags))
858 lna_gain += 14;
859
860 rt2x00_eeprom_read(rt2x00dev, EEPROM_RSSI_OFFSET_A, &eeprom);
861 lna_gain -= rt2x00_get_field16(eeprom, EEPROM_RSSI_OFFSET_A_1);
862 }
863
864 rt2x00dev->lna_gain = lna_gain;
865 }
866
rt61pci_config_channel(struct rt2x00_dev * rt2x00dev,struct rf_channel * rf,const int txpower)867 static void rt61pci_config_channel(struct rt2x00_dev *rt2x00dev,
868 struct rf_channel *rf, const int txpower)
869 {
870 u8 r3;
871 u8 r94;
872 u8 smart;
873
874 rt2x00_set_field32(&rf->rf3, RF3_TXPOWER, TXPOWER_TO_DEV(txpower));
875 rt2x00_set_field32(&rf->rf4, RF4_FREQ_OFFSET, rt2x00dev->freq_offset);
876
877 smart = !(rt2x00_rf(rt2x00dev, RF5225) || rt2x00_rf(rt2x00dev, RF2527));
878
879 rt61pci_bbp_read(rt2x00dev, 3, &r3);
880 rt2x00_set_field8(&r3, BBP_R3_SMART_MODE, smart);
881 rt61pci_bbp_write(rt2x00dev, 3, r3);
882
883 r94 = 6;
884 if (txpower > MAX_TXPOWER && txpower <= (MAX_TXPOWER + r94))
885 r94 += txpower - MAX_TXPOWER;
886 else if (txpower < MIN_TXPOWER && txpower >= (MIN_TXPOWER - r94))
887 r94 += txpower;
888 rt61pci_bbp_write(rt2x00dev, 94, r94);
889
890 rt61pci_rf_write(rt2x00dev, 1, rf->rf1);
891 rt61pci_rf_write(rt2x00dev, 2, rf->rf2);
892 rt61pci_rf_write(rt2x00dev, 3, rf->rf3 & ~0x00000004);
893 rt61pci_rf_write(rt2x00dev, 4, rf->rf4);
894
895 udelay(200);
896
897 rt61pci_rf_write(rt2x00dev, 1, rf->rf1);
898 rt61pci_rf_write(rt2x00dev, 2, rf->rf2);
899 rt61pci_rf_write(rt2x00dev, 3, rf->rf3 | 0x00000004);
900 rt61pci_rf_write(rt2x00dev, 4, rf->rf4);
901
902 udelay(200);
903
904 rt61pci_rf_write(rt2x00dev, 1, rf->rf1);
905 rt61pci_rf_write(rt2x00dev, 2, rf->rf2);
906 rt61pci_rf_write(rt2x00dev, 3, rf->rf3 & ~0x00000004);
907 rt61pci_rf_write(rt2x00dev, 4, rf->rf4);
908
909 msleep(1);
910 }
911
rt61pci_config_txpower(struct rt2x00_dev * rt2x00dev,const int txpower)912 static void rt61pci_config_txpower(struct rt2x00_dev *rt2x00dev,
913 const int txpower)
914 {
915 struct rf_channel rf;
916
917 rt2x00_rf_read(rt2x00dev, 1, &rf.rf1);
918 rt2x00_rf_read(rt2x00dev, 2, &rf.rf2);
919 rt2x00_rf_read(rt2x00dev, 3, &rf.rf3);
920 rt2x00_rf_read(rt2x00dev, 4, &rf.rf4);
921
922 rt61pci_config_channel(rt2x00dev, &rf, txpower);
923 }
924
rt61pci_config_retry_limit(struct rt2x00_dev * rt2x00dev,struct rt2x00lib_conf * libconf)925 static void rt61pci_config_retry_limit(struct rt2x00_dev *rt2x00dev,
926 struct rt2x00lib_conf *libconf)
927 {
928 u32 reg;
929
930 rt2x00pci_register_read(rt2x00dev, TXRX_CSR4, ®);
931 rt2x00_set_field32(®, TXRX_CSR4_OFDM_TX_RATE_DOWN, 1);
932 rt2x00_set_field32(®, TXRX_CSR4_OFDM_TX_RATE_STEP, 0);
933 rt2x00_set_field32(®, TXRX_CSR4_OFDM_TX_FALLBACK_CCK, 0);
934 rt2x00_set_field32(®, TXRX_CSR4_LONG_RETRY_LIMIT,
935 libconf->conf->long_frame_max_tx_count);
936 rt2x00_set_field32(®, TXRX_CSR4_SHORT_RETRY_LIMIT,
937 libconf->conf->short_frame_max_tx_count);
938 rt2x00pci_register_write(rt2x00dev, TXRX_CSR4, reg);
939 }
940
rt61pci_config_ps(struct rt2x00_dev * rt2x00dev,struct rt2x00lib_conf * libconf)941 static void rt61pci_config_ps(struct rt2x00_dev *rt2x00dev,
942 struct rt2x00lib_conf *libconf)
943 {
944 enum dev_state state =
945 (libconf->conf->flags & IEEE80211_CONF_PS) ?
946 STATE_SLEEP : STATE_AWAKE;
947 u32 reg;
948
949 if (state == STATE_SLEEP) {
950 rt2x00pci_register_read(rt2x00dev, MAC_CSR11, ®);
951 rt2x00_set_field32(®, MAC_CSR11_DELAY_AFTER_TBCN,
952 rt2x00dev->beacon_int - 10);
953 rt2x00_set_field32(®, MAC_CSR11_TBCN_BEFORE_WAKEUP,
954 libconf->conf->listen_interval - 1);
955 rt2x00_set_field32(®, MAC_CSR11_WAKEUP_LATENCY, 5);
956
957 /* We must first disable autowake before it can be enabled */
958 rt2x00_set_field32(®, MAC_CSR11_AUTOWAKE, 0);
959 rt2x00pci_register_write(rt2x00dev, MAC_CSR11, reg);
960
961 rt2x00_set_field32(®, MAC_CSR11_AUTOWAKE, 1);
962 rt2x00pci_register_write(rt2x00dev, MAC_CSR11, reg);
963
964 rt2x00pci_register_write(rt2x00dev, SOFT_RESET_CSR, 0x00000005);
965 rt2x00pci_register_write(rt2x00dev, IO_CNTL_CSR, 0x0000001c);
966 rt2x00pci_register_write(rt2x00dev, PCI_USEC_CSR, 0x00000060);
967
968 rt61pci_mcu_request(rt2x00dev, MCU_SLEEP, 0xff, 0, 0);
969 } else {
970 rt2x00pci_register_read(rt2x00dev, MAC_CSR11, ®);
971 rt2x00_set_field32(®, MAC_CSR11_DELAY_AFTER_TBCN, 0);
972 rt2x00_set_field32(®, MAC_CSR11_TBCN_BEFORE_WAKEUP, 0);
973 rt2x00_set_field32(®, MAC_CSR11_AUTOWAKE, 0);
974 rt2x00_set_field32(®, MAC_CSR11_WAKEUP_LATENCY, 0);
975 rt2x00pci_register_write(rt2x00dev, MAC_CSR11, reg);
976
977 rt2x00pci_register_write(rt2x00dev, SOFT_RESET_CSR, 0x00000007);
978 rt2x00pci_register_write(rt2x00dev, IO_CNTL_CSR, 0x00000018);
979 rt2x00pci_register_write(rt2x00dev, PCI_USEC_CSR, 0x00000020);
980
981 rt61pci_mcu_request(rt2x00dev, MCU_WAKEUP, 0xff, 0, 0);
982 }
983 }
984
rt61pci_config(struct rt2x00_dev * rt2x00dev,struct rt2x00lib_conf * libconf,const unsigned int flags)985 static void rt61pci_config(struct rt2x00_dev *rt2x00dev,
986 struct rt2x00lib_conf *libconf,
987 const unsigned int flags)
988 {
989 /* Always recalculate LNA gain before changing configuration */
990 rt61pci_config_lna_gain(rt2x00dev, libconf);
991
992 if (flags & IEEE80211_CONF_CHANGE_CHANNEL)
993 rt61pci_config_channel(rt2x00dev, &libconf->rf,
994 libconf->conf->power_level);
995 if ((flags & IEEE80211_CONF_CHANGE_POWER) &&
996 !(flags & IEEE80211_CONF_CHANGE_CHANNEL))
997 rt61pci_config_txpower(rt2x00dev, libconf->conf->power_level);
998 if (flags & IEEE80211_CONF_CHANGE_RETRY_LIMITS)
999 rt61pci_config_retry_limit(rt2x00dev, libconf);
1000 if (flags & IEEE80211_CONF_CHANGE_PS)
1001 rt61pci_config_ps(rt2x00dev, libconf);
1002 }
1003
1004 /*
1005 * Link tuning
1006 */
rt61pci_link_stats(struct rt2x00_dev * rt2x00dev,struct link_qual * qual)1007 static void rt61pci_link_stats(struct rt2x00_dev *rt2x00dev,
1008 struct link_qual *qual)
1009 {
1010 u32 reg;
1011
1012 /*
1013 * Update FCS error count from register.
1014 */
1015 rt2x00pci_register_read(rt2x00dev, STA_CSR0, ®);
1016 qual->rx_failed = rt2x00_get_field32(reg, STA_CSR0_FCS_ERROR);
1017
1018 /*
1019 * Update False CCA count from register.
1020 */
1021 rt2x00pci_register_read(rt2x00dev, STA_CSR1, ®);
1022 qual->false_cca = rt2x00_get_field32(reg, STA_CSR1_FALSE_CCA_ERROR);
1023 }
1024
rt61pci_set_vgc(struct rt2x00_dev * rt2x00dev,struct link_qual * qual,u8 vgc_level)1025 static inline void rt61pci_set_vgc(struct rt2x00_dev *rt2x00dev,
1026 struct link_qual *qual, u8 vgc_level)
1027 {
1028 if (qual->vgc_level != vgc_level) {
1029 rt61pci_bbp_write(rt2x00dev, 17, vgc_level);
1030 qual->vgc_level = vgc_level;
1031 qual->vgc_level_reg = vgc_level;
1032 }
1033 }
1034
rt61pci_reset_tuner(struct rt2x00_dev * rt2x00dev,struct link_qual * qual)1035 static void rt61pci_reset_tuner(struct rt2x00_dev *rt2x00dev,
1036 struct link_qual *qual)
1037 {
1038 rt61pci_set_vgc(rt2x00dev, qual, 0x20);
1039 }
1040
rt61pci_link_tuner(struct rt2x00_dev * rt2x00dev,struct link_qual * qual,const u32 count)1041 static void rt61pci_link_tuner(struct rt2x00_dev *rt2x00dev,
1042 struct link_qual *qual, const u32 count)
1043 {
1044 u8 up_bound;
1045 u8 low_bound;
1046
1047 /*
1048 * Determine r17 bounds.
1049 */
1050 if (rt2x00dev->curr_band == IEEE80211_BAND_5GHZ) {
1051 low_bound = 0x28;
1052 up_bound = 0x48;
1053 if (test_bit(CAPABILITY_EXTERNAL_LNA_A, &rt2x00dev->cap_flags)) {
1054 low_bound += 0x10;
1055 up_bound += 0x10;
1056 }
1057 } else {
1058 low_bound = 0x20;
1059 up_bound = 0x40;
1060 if (test_bit(CAPABILITY_EXTERNAL_LNA_BG, &rt2x00dev->cap_flags)) {
1061 low_bound += 0x10;
1062 up_bound += 0x10;
1063 }
1064 }
1065
1066 /*
1067 * If we are not associated, we should go straight to the
1068 * dynamic CCA tuning.
1069 */
1070 if (!rt2x00dev->intf_associated)
1071 goto dynamic_cca_tune;
1072
1073 /*
1074 * Special big-R17 for very short distance
1075 */
1076 if (qual->rssi >= -35) {
1077 rt61pci_set_vgc(rt2x00dev, qual, 0x60);
1078 return;
1079 }
1080
1081 /*
1082 * Special big-R17 for short distance
1083 */
1084 if (qual->rssi >= -58) {
1085 rt61pci_set_vgc(rt2x00dev, qual, up_bound);
1086 return;
1087 }
1088
1089 /*
1090 * Special big-R17 for middle-short distance
1091 */
1092 if (qual->rssi >= -66) {
1093 rt61pci_set_vgc(rt2x00dev, qual, low_bound + 0x10);
1094 return;
1095 }
1096
1097 /*
1098 * Special mid-R17 for middle distance
1099 */
1100 if (qual->rssi >= -74) {
1101 rt61pci_set_vgc(rt2x00dev, qual, low_bound + 0x08);
1102 return;
1103 }
1104
1105 /*
1106 * Special case: Change up_bound based on the rssi.
1107 * Lower up_bound when rssi is weaker then -74 dBm.
1108 */
1109 up_bound -= 2 * (-74 - qual->rssi);
1110 if (low_bound > up_bound)
1111 up_bound = low_bound;
1112
1113 if (qual->vgc_level > up_bound) {
1114 rt61pci_set_vgc(rt2x00dev, qual, up_bound);
1115 return;
1116 }
1117
1118 dynamic_cca_tune:
1119
1120 /*
1121 * r17 does not yet exceed upper limit, continue and base
1122 * the r17 tuning on the false CCA count.
1123 */
1124 if ((qual->false_cca > 512) && (qual->vgc_level < up_bound))
1125 rt61pci_set_vgc(rt2x00dev, qual, ++qual->vgc_level);
1126 else if ((qual->false_cca < 100) && (qual->vgc_level > low_bound))
1127 rt61pci_set_vgc(rt2x00dev, qual, --qual->vgc_level);
1128 }
1129
1130 /*
1131 * Queue handlers.
1132 */
rt61pci_start_queue(struct data_queue * queue)1133 static void rt61pci_start_queue(struct data_queue *queue)
1134 {
1135 struct rt2x00_dev *rt2x00dev = queue->rt2x00dev;
1136 u32 reg;
1137
1138 switch (queue->qid) {
1139 case QID_RX:
1140 rt2x00pci_register_read(rt2x00dev, TXRX_CSR0, ®);
1141 rt2x00_set_field32(®, TXRX_CSR0_DISABLE_RX, 0);
1142 rt2x00pci_register_write(rt2x00dev, TXRX_CSR0, reg);
1143 break;
1144 case QID_BEACON:
1145 rt2x00pci_register_read(rt2x00dev, TXRX_CSR9, ®);
1146 rt2x00_set_field32(®, TXRX_CSR9_TSF_TICKING, 1);
1147 rt2x00_set_field32(®, TXRX_CSR9_TBTT_ENABLE, 1);
1148 rt2x00_set_field32(®, TXRX_CSR9_BEACON_GEN, 1);
1149 rt2x00pci_register_write(rt2x00dev, TXRX_CSR9, reg);
1150 break;
1151 default:
1152 break;
1153 }
1154 }
1155
rt61pci_kick_queue(struct data_queue * queue)1156 static void rt61pci_kick_queue(struct data_queue *queue)
1157 {
1158 struct rt2x00_dev *rt2x00dev = queue->rt2x00dev;
1159 u32 reg;
1160
1161 switch (queue->qid) {
1162 case QID_AC_VO:
1163 rt2x00pci_register_read(rt2x00dev, TX_CNTL_CSR, ®);
1164 rt2x00_set_field32(®, TX_CNTL_CSR_KICK_TX_AC0, 1);
1165 rt2x00pci_register_write(rt2x00dev, TX_CNTL_CSR, reg);
1166 break;
1167 case QID_AC_VI:
1168 rt2x00pci_register_read(rt2x00dev, TX_CNTL_CSR, ®);
1169 rt2x00_set_field32(®, TX_CNTL_CSR_KICK_TX_AC1, 1);
1170 rt2x00pci_register_write(rt2x00dev, TX_CNTL_CSR, reg);
1171 break;
1172 case QID_AC_BE:
1173 rt2x00pci_register_read(rt2x00dev, TX_CNTL_CSR, ®);
1174 rt2x00_set_field32(®, TX_CNTL_CSR_KICK_TX_AC2, 1);
1175 rt2x00pci_register_write(rt2x00dev, TX_CNTL_CSR, reg);
1176 break;
1177 case QID_AC_BK:
1178 rt2x00pci_register_read(rt2x00dev, TX_CNTL_CSR, ®);
1179 rt2x00_set_field32(®, TX_CNTL_CSR_KICK_TX_AC3, 1);
1180 rt2x00pci_register_write(rt2x00dev, TX_CNTL_CSR, reg);
1181 break;
1182 default:
1183 break;
1184 }
1185 }
1186
rt61pci_stop_queue(struct data_queue * queue)1187 static void rt61pci_stop_queue(struct data_queue *queue)
1188 {
1189 struct rt2x00_dev *rt2x00dev = queue->rt2x00dev;
1190 u32 reg;
1191
1192 switch (queue->qid) {
1193 case QID_AC_VO:
1194 rt2x00pci_register_read(rt2x00dev, TX_CNTL_CSR, ®);
1195 rt2x00_set_field32(®, TX_CNTL_CSR_ABORT_TX_AC0, 1);
1196 rt2x00pci_register_write(rt2x00dev, TX_CNTL_CSR, reg);
1197 break;
1198 case QID_AC_VI:
1199 rt2x00pci_register_read(rt2x00dev, TX_CNTL_CSR, ®);
1200 rt2x00_set_field32(®, TX_CNTL_CSR_ABORT_TX_AC1, 1);
1201 rt2x00pci_register_write(rt2x00dev, TX_CNTL_CSR, reg);
1202 break;
1203 case QID_AC_BE:
1204 rt2x00pci_register_read(rt2x00dev, TX_CNTL_CSR, ®);
1205 rt2x00_set_field32(®, TX_CNTL_CSR_ABORT_TX_AC2, 1);
1206 rt2x00pci_register_write(rt2x00dev, TX_CNTL_CSR, reg);
1207 break;
1208 case QID_AC_BK:
1209 rt2x00pci_register_read(rt2x00dev, TX_CNTL_CSR, ®);
1210 rt2x00_set_field32(®, TX_CNTL_CSR_ABORT_TX_AC3, 1);
1211 rt2x00pci_register_write(rt2x00dev, TX_CNTL_CSR, reg);
1212 break;
1213 case QID_RX:
1214 rt2x00pci_register_read(rt2x00dev, TXRX_CSR0, ®);
1215 rt2x00_set_field32(®, TXRX_CSR0_DISABLE_RX, 1);
1216 rt2x00pci_register_write(rt2x00dev, TXRX_CSR0, reg);
1217 break;
1218 case QID_BEACON:
1219 rt2x00pci_register_read(rt2x00dev, TXRX_CSR9, ®);
1220 rt2x00_set_field32(®, TXRX_CSR9_TSF_TICKING, 0);
1221 rt2x00_set_field32(®, TXRX_CSR9_TBTT_ENABLE, 0);
1222 rt2x00_set_field32(®, TXRX_CSR9_BEACON_GEN, 0);
1223 rt2x00pci_register_write(rt2x00dev, TXRX_CSR9, reg);
1224
1225 /*
1226 * Wait for possibly running tbtt tasklets.
1227 */
1228 tasklet_kill(&rt2x00dev->tbtt_tasklet);
1229 break;
1230 default:
1231 break;
1232 }
1233 }
1234
1235 /*
1236 * Firmware functions
1237 */
rt61pci_get_firmware_name(struct rt2x00_dev * rt2x00dev)1238 static char *rt61pci_get_firmware_name(struct rt2x00_dev *rt2x00dev)
1239 {
1240 u16 chip;
1241 char *fw_name;
1242
1243 pci_read_config_word(to_pci_dev(rt2x00dev->dev), PCI_DEVICE_ID, &chip);
1244 switch (chip) {
1245 case RT2561_PCI_ID:
1246 fw_name = FIRMWARE_RT2561;
1247 break;
1248 case RT2561s_PCI_ID:
1249 fw_name = FIRMWARE_RT2561s;
1250 break;
1251 case RT2661_PCI_ID:
1252 fw_name = FIRMWARE_RT2661;
1253 break;
1254 default:
1255 fw_name = NULL;
1256 break;
1257 }
1258
1259 return fw_name;
1260 }
1261
rt61pci_check_firmware(struct rt2x00_dev * rt2x00dev,const u8 * data,const size_t len)1262 static int rt61pci_check_firmware(struct rt2x00_dev *rt2x00dev,
1263 const u8 *data, const size_t len)
1264 {
1265 u16 fw_crc;
1266 u16 crc;
1267
1268 /*
1269 * Only support 8kb firmware files.
1270 */
1271 if (len != 8192)
1272 return FW_BAD_LENGTH;
1273
1274 /*
1275 * The last 2 bytes in the firmware array are the crc checksum itself.
1276 * This means that we should never pass those 2 bytes to the crc
1277 * algorithm.
1278 */
1279 fw_crc = (data[len - 2] << 8 | data[len - 1]);
1280
1281 /*
1282 * Use the crc itu-t algorithm.
1283 */
1284 crc = crc_itu_t(0, data, len - 2);
1285 crc = crc_itu_t_byte(crc, 0);
1286 crc = crc_itu_t_byte(crc, 0);
1287
1288 return (fw_crc == crc) ? FW_OK : FW_BAD_CRC;
1289 }
1290
rt61pci_load_firmware(struct rt2x00_dev * rt2x00dev,const u8 * data,const size_t len)1291 static int rt61pci_load_firmware(struct rt2x00_dev *rt2x00dev,
1292 const u8 *data, const size_t len)
1293 {
1294 int i;
1295 u32 reg;
1296
1297 /*
1298 * Wait for stable hardware.
1299 */
1300 for (i = 0; i < 100; i++) {
1301 rt2x00pci_register_read(rt2x00dev, MAC_CSR0, ®);
1302 if (reg)
1303 break;
1304 msleep(1);
1305 }
1306
1307 if (!reg) {
1308 ERROR(rt2x00dev, "Unstable hardware.\n");
1309 return -EBUSY;
1310 }
1311
1312 /*
1313 * Prepare MCU and mailbox for firmware loading.
1314 */
1315 reg = 0;
1316 rt2x00_set_field32(®, MCU_CNTL_CSR_RESET, 1);
1317 rt2x00pci_register_write(rt2x00dev, MCU_CNTL_CSR, reg);
1318 rt2x00pci_register_write(rt2x00dev, M2H_CMD_DONE_CSR, 0xffffffff);
1319 rt2x00pci_register_write(rt2x00dev, H2M_MAILBOX_CSR, 0);
1320 rt2x00pci_register_write(rt2x00dev, HOST_CMD_CSR, 0);
1321
1322 /*
1323 * Write firmware to device.
1324 */
1325 reg = 0;
1326 rt2x00_set_field32(®, MCU_CNTL_CSR_RESET, 1);
1327 rt2x00_set_field32(®, MCU_CNTL_CSR_SELECT_BANK, 1);
1328 rt2x00pci_register_write(rt2x00dev, MCU_CNTL_CSR, reg);
1329
1330 rt2x00pci_register_multiwrite(rt2x00dev, FIRMWARE_IMAGE_BASE,
1331 data, len);
1332
1333 rt2x00_set_field32(®, MCU_CNTL_CSR_SELECT_BANK, 0);
1334 rt2x00pci_register_write(rt2x00dev, MCU_CNTL_CSR, reg);
1335
1336 rt2x00_set_field32(®, MCU_CNTL_CSR_RESET, 0);
1337 rt2x00pci_register_write(rt2x00dev, MCU_CNTL_CSR, reg);
1338
1339 for (i = 0; i < 100; i++) {
1340 rt2x00pci_register_read(rt2x00dev, MCU_CNTL_CSR, ®);
1341 if (rt2x00_get_field32(reg, MCU_CNTL_CSR_READY))
1342 break;
1343 msleep(1);
1344 }
1345
1346 if (i == 100) {
1347 ERROR(rt2x00dev, "MCU Control register not ready.\n");
1348 return -EBUSY;
1349 }
1350
1351 /*
1352 * Hardware needs another millisecond before it is ready.
1353 */
1354 msleep(1);
1355
1356 /*
1357 * Reset MAC and BBP registers.
1358 */
1359 reg = 0;
1360 rt2x00_set_field32(®, MAC_CSR1_SOFT_RESET, 1);
1361 rt2x00_set_field32(®, MAC_CSR1_BBP_RESET, 1);
1362 rt2x00pci_register_write(rt2x00dev, MAC_CSR1, reg);
1363
1364 rt2x00pci_register_read(rt2x00dev, MAC_CSR1, ®);
1365 rt2x00_set_field32(®, MAC_CSR1_SOFT_RESET, 0);
1366 rt2x00_set_field32(®, MAC_CSR1_BBP_RESET, 0);
1367 rt2x00pci_register_write(rt2x00dev, MAC_CSR1, reg);
1368
1369 rt2x00pci_register_read(rt2x00dev, MAC_CSR1, ®);
1370 rt2x00_set_field32(®, MAC_CSR1_HOST_READY, 1);
1371 rt2x00pci_register_write(rt2x00dev, MAC_CSR1, reg);
1372
1373 return 0;
1374 }
1375
1376 /*
1377 * Initialization functions.
1378 */
rt61pci_get_entry_state(struct queue_entry * entry)1379 static bool rt61pci_get_entry_state(struct queue_entry *entry)
1380 {
1381 struct queue_entry_priv_pci *entry_priv = entry->priv_data;
1382 u32 word;
1383
1384 if (entry->queue->qid == QID_RX) {
1385 rt2x00_desc_read(entry_priv->desc, 0, &word);
1386
1387 return rt2x00_get_field32(word, RXD_W0_OWNER_NIC);
1388 } else {
1389 rt2x00_desc_read(entry_priv->desc, 0, &word);
1390
1391 return (rt2x00_get_field32(word, TXD_W0_OWNER_NIC) ||
1392 rt2x00_get_field32(word, TXD_W0_VALID));
1393 }
1394 }
1395
rt61pci_clear_entry(struct queue_entry * entry)1396 static void rt61pci_clear_entry(struct queue_entry *entry)
1397 {
1398 struct queue_entry_priv_pci *entry_priv = entry->priv_data;
1399 struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
1400 u32 word;
1401
1402 if (entry->queue->qid == QID_RX) {
1403 rt2x00_desc_read(entry_priv->desc, 5, &word);
1404 rt2x00_set_field32(&word, RXD_W5_BUFFER_PHYSICAL_ADDRESS,
1405 skbdesc->skb_dma);
1406 rt2x00_desc_write(entry_priv->desc, 5, word);
1407
1408 rt2x00_desc_read(entry_priv->desc, 0, &word);
1409 rt2x00_set_field32(&word, RXD_W0_OWNER_NIC, 1);
1410 rt2x00_desc_write(entry_priv->desc, 0, word);
1411 } else {
1412 rt2x00_desc_read(entry_priv->desc, 0, &word);
1413 rt2x00_set_field32(&word, TXD_W0_VALID, 0);
1414 rt2x00_set_field32(&word, TXD_W0_OWNER_NIC, 0);
1415 rt2x00_desc_write(entry_priv->desc, 0, word);
1416 }
1417 }
1418
rt61pci_init_queues(struct rt2x00_dev * rt2x00dev)1419 static int rt61pci_init_queues(struct rt2x00_dev *rt2x00dev)
1420 {
1421 struct queue_entry_priv_pci *entry_priv;
1422 u32 reg;
1423
1424 /*
1425 * Initialize registers.
1426 */
1427 rt2x00pci_register_read(rt2x00dev, TX_RING_CSR0, ®);
1428 rt2x00_set_field32(®, TX_RING_CSR0_AC0_RING_SIZE,
1429 rt2x00dev->tx[0].limit);
1430 rt2x00_set_field32(®, TX_RING_CSR0_AC1_RING_SIZE,
1431 rt2x00dev->tx[1].limit);
1432 rt2x00_set_field32(®, TX_RING_CSR0_AC2_RING_SIZE,
1433 rt2x00dev->tx[2].limit);
1434 rt2x00_set_field32(®, TX_RING_CSR0_AC3_RING_SIZE,
1435 rt2x00dev->tx[3].limit);
1436 rt2x00pci_register_write(rt2x00dev, TX_RING_CSR0, reg);
1437
1438 rt2x00pci_register_read(rt2x00dev, TX_RING_CSR1, ®);
1439 rt2x00_set_field32(®, TX_RING_CSR1_TXD_SIZE,
1440 rt2x00dev->tx[0].desc_size / 4);
1441 rt2x00pci_register_write(rt2x00dev, TX_RING_CSR1, reg);
1442
1443 entry_priv = rt2x00dev->tx[0].entries[0].priv_data;
1444 rt2x00pci_register_read(rt2x00dev, AC0_BASE_CSR, ®);
1445 rt2x00_set_field32(®, AC0_BASE_CSR_RING_REGISTER,
1446 entry_priv->desc_dma);
1447 rt2x00pci_register_write(rt2x00dev, AC0_BASE_CSR, reg);
1448
1449 entry_priv = rt2x00dev->tx[1].entries[0].priv_data;
1450 rt2x00pci_register_read(rt2x00dev, AC1_BASE_CSR, ®);
1451 rt2x00_set_field32(®, AC1_BASE_CSR_RING_REGISTER,
1452 entry_priv->desc_dma);
1453 rt2x00pci_register_write(rt2x00dev, AC1_BASE_CSR, reg);
1454
1455 entry_priv = rt2x00dev->tx[2].entries[0].priv_data;
1456 rt2x00pci_register_read(rt2x00dev, AC2_BASE_CSR, ®);
1457 rt2x00_set_field32(®, AC2_BASE_CSR_RING_REGISTER,
1458 entry_priv->desc_dma);
1459 rt2x00pci_register_write(rt2x00dev, AC2_BASE_CSR, reg);
1460
1461 entry_priv = rt2x00dev->tx[3].entries[0].priv_data;
1462 rt2x00pci_register_read(rt2x00dev, AC3_BASE_CSR, ®);
1463 rt2x00_set_field32(®, AC3_BASE_CSR_RING_REGISTER,
1464 entry_priv->desc_dma);
1465 rt2x00pci_register_write(rt2x00dev, AC3_BASE_CSR, reg);
1466
1467 rt2x00pci_register_read(rt2x00dev, RX_RING_CSR, ®);
1468 rt2x00_set_field32(®, RX_RING_CSR_RING_SIZE, rt2x00dev->rx->limit);
1469 rt2x00_set_field32(®, RX_RING_CSR_RXD_SIZE,
1470 rt2x00dev->rx->desc_size / 4);
1471 rt2x00_set_field32(®, RX_RING_CSR_RXD_WRITEBACK_SIZE, 4);
1472 rt2x00pci_register_write(rt2x00dev, RX_RING_CSR, reg);
1473
1474 entry_priv = rt2x00dev->rx->entries[0].priv_data;
1475 rt2x00pci_register_read(rt2x00dev, RX_BASE_CSR, ®);
1476 rt2x00_set_field32(®, RX_BASE_CSR_RING_REGISTER,
1477 entry_priv->desc_dma);
1478 rt2x00pci_register_write(rt2x00dev, RX_BASE_CSR, reg);
1479
1480 rt2x00pci_register_read(rt2x00dev, TX_DMA_DST_CSR, ®);
1481 rt2x00_set_field32(®, TX_DMA_DST_CSR_DEST_AC0, 2);
1482 rt2x00_set_field32(®, TX_DMA_DST_CSR_DEST_AC1, 2);
1483 rt2x00_set_field32(®, TX_DMA_DST_CSR_DEST_AC2, 2);
1484 rt2x00_set_field32(®, TX_DMA_DST_CSR_DEST_AC3, 2);
1485 rt2x00pci_register_write(rt2x00dev, TX_DMA_DST_CSR, reg);
1486
1487 rt2x00pci_register_read(rt2x00dev, LOAD_TX_RING_CSR, ®);
1488 rt2x00_set_field32(®, LOAD_TX_RING_CSR_LOAD_TXD_AC0, 1);
1489 rt2x00_set_field32(®, LOAD_TX_RING_CSR_LOAD_TXD_AC1, 1);
1490 rt2x00_set_field32(®, LOAD_TX_RING_CSR_LOAD_TXD_AC2, 1);
1491 rt2x00_set_field32(®, LOAD_TX_RING_CSR_LOAD_TXD_AC3, 1);
1492 rt2x00pci_register_write(rt2x00dev, LOAD_TX_RING_CSR, reg);
1493
1494 rt2x00pci_register_read(rt2x00dev, RX_CNTL_CSR, ®);
1495 rt2x00_set_field32(®, RX_CNTL_CSR_LOAD_RXD, 1);
1496 rt2x00pci_register_write(rt2x00dev, RX_CNTL_CSR, reg);
1497
1498 return 0;
1499 }
1500
rt61pci_init_registers(struct rt2x00_dev * rt2x00dev)1501 static int rt61pci_init_registers(struct rt2x00_dev *rt2x00dev)
1502 {
1503 u32 reg;
1504
1505 rt2x00pci_register_read(rt2x00dev, TXRX_CSR0, ®);
1506 rt2x00_set_field32(®, TXRX_CSR0_AUTO_TX_SEQ, 1);
1507 rt2x00_set_field32(®, TXRX_CSR0_DISABLE_RX, 0);
1508 rt2x00_set_field32(®, TXRX_CSR0_TX_WITHOUT_WAITING, 0);
1509 rt2x00pci_register_write(rt2x00dev, TXRX_CSR0, reg);
1510
1511 rt2x00pci_register_read(rt2x00dev, TXRX_CSR1, ®);
1512 rt2x00_set_field32(®, TXRX_CSR1_BBP_ID0, 47); /* CCK Signal */
1513 rt2x00_set_field32(®, TXRX_CSR1_BBP_ID0_VALID, 1);
1514 rt2x00_set_field32(®, TXRX_CSR1_BBP_ID1, 30); /* Rssi */
1515 rt2x00_set_field32(®, TXRX_CSR1_BBP_ID1_VALID, 1);
1516 rt2x00_set_field32(®, TXRX_CSR1_BBP_ID2, 42); /* OFDM Rate */
1517 rt2x00_set_field32(®, TXRX_CSR1_BBP_ID2_VALID, 1);
1518 rt2x00_set_field32(®, TXRX_CSR1_BBP_ID3, 30); /* Rssi */
1519 rt2x00_set_field32(®, TXRX_CSR1_BBP_ID3_VALID, 1);
1520 rt2x00pci_register_write(rt2x00dev, TXRX_CSR1, reg);
1521
1522 /*
1523 * CCK TXD BBP registers
1524 */
1525 rt2x00pci_register_read(rt2x00dev, TXRX_CSR2, ®);
1526 rt2x00_set_field32(®, TXRX_CSR2_BBP_ID0, 13);
1527 rt2x00_set_field32(®, TXRX_CSR2_BBP_ID0_VALID, 1);
1528 rt2x00_set_field32(®, TXRX_CSR2_BBP_ID1, 12);
1529 rt2x00_set_field32(®, TXRX_CSR2_BBP_ID1_VALID, 1);
1530 rt2x00_set_field32(®, TXRX_CSR2_BBP_ID2, 11);
1531 rt2x00_set_field32(®, TXRX_CSR2_BBP_ID2_VALID, 1);
1532 rt2x00_set_field32(®, TXRX_CSR2_BBP_ID3, 10);
1533 rt2x00_set_field32(®, TXRX_CSR2_BBP_ID3_VALID, 1);
1534 rt2x00pci_register_write(rt2x00dev, TXRX_CSR2, reg);
1535
1536 /*
1537 * OFDM TXD BBP registers
1538 */
1539 rt2x00pci_register_read(rt2x00dev, TXRX_CSR3, ®);
1540 rt2x00_set_field32(®, TXRX_CSR3_BBP_ID0, 7);
1541 rt2x00_set_field32(®, TXRX_CSR3_BBP_ID0_VALID, 1);
1542 rt2x00_set_field32(®, TXRX_CSR3_BBP_ID1, 6);
1543 rt2x00_set_field32(®, TXRX_CSR3_BBP_ID1_VALID, 1);
1544 rt2x00_set_field32(®, TXRX_CSR3_BBP_ID2, 5);
1545 rt2x00_set_field32(®, TXRX_CSR3_BBP_ID2_VALID, 1);
1546 rt2x00pci_register_write(rt2x00dev, TXRX_CSR3, reg);
1547
1548 rt2x00pci_register_read(rt2x00dev, TXRX_CSR7, ®);
1549 rt2x00_set_field32(®, TXRX_CSR7_ACK_CTS_6MBS, 59);
1550 rt2x00_set_field32(®, TXRX_CSR7_ACK_CTS_9MBS, 53);
1551 rt2x00_set_field32(®, TXRX_CSR7_ACK_CTS_12MBS, 49);
1552 rt2x00_set_field32(®, TXRX_CSR7_ACK_CTS_18MBS, 46);
1553 rt2x00pci_register_write(rt2x00dev, TXRX_CSR7, reg);
1554
1555 rt2x00pci_register_read(rt2x00dev, TXRX_CSR8, ®);
1556 rt2x00_set_field32(®, TXRX_CSR8_ACK_CTS_24MBS, 44);
1557 rt2x00_set_field32(®, TXRX_CSR8_ACK_CTS_36MBS, 42);
1558 rt2x00_set_field32(®, TXRX_CSR8_ACK_CTS_48MBS, 42);
1559 rt2x00_set_field32(®, TXRX_CSR8_ACK_CTS_54MBS, 42);
1560 rt2x00pci_register_write(rt2x00dev, TXRX_CSR8, reg);
1561
1562 rt2x00pci_register_read(rt2x00dev, TXRX_CSR9, ®);
1563 rt2x00_set_field32(®, TXRX_CSR9_BEACON_INTERVAL, 0);
1564 rt2x00_set_field32(®, TXRX_CSR9_TSF_TICKING, 0);
1565 rt2x00_set_field32(®, TXRX_CSR9_TSF_SYNC, 0);
1566 rt2x00_set_field32(®, TXRX_CSR9_TBTT_ENABLE, 0);
1567 rt2x00_set_field32(®, TXRX_CSR9_BEACON_GEN, 0);
1568 rt2x00_set_field32(®, TXRX_CSR9_TIMESTAMP_COMPENSATE, 0);
1569 rt2x00pci_register_write(rt2x00dev, TXRX_CSR9, reg);
1570
1571 rt2x00pci_register_write(rt2x00dev, TXRX_CSR15, 0x0000000f);
1572
1573 rt2x00pci_register_write(rt2x00dev, MAC_CSR6, 0x00000fff);
1574
1575 rt2x00pci_register_read(rt2x00dev, MAC_CSR9, ®);
1576 rt2x00_set_field32(®, MAC_CSR9_CW_SELECT, 0);
1577 rt2x00pci_register_write(rt2x00dev, MAC_CSR9, reg);
1578
1579 rt2x00pci_register_write(rt2x00dev, MAC_CSR10, 0x0000071c);
1580
1581 if (rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_AWAKE))
1582 return -EBUSY;
1583
1584 rt2x00pci_register_write(rt2x00dev, MAC_CSR13, 0x0000e000);
1585
1586 /*
1587 * Invalidate all Shared Keys (SEC_CSR0),
1588 * and clear the Shared key Cipher algorithms (SEC_CSR1 & SEC_CSR5)
1589 */
1590 rt2x00pci_register_write(rt2x00dev, SEC_CSR0, 0x00000000);
1591 rt2x00pci_register_write(rt2x00dev, SEC_CSR1, 0x00000000);
1592 rt2x00pci_register_write(rt2x00dev, SEC_CSR5, 0x00000000);
1593
1594 rt2x00pci_register_write(rt2x00dev, PHY_CSR1, 0x000023b0);
1595 rt2x00pci_register_write(rt2x00dev, PHY_CSR5, 0x060a100c);
1596 rt2x00pci_register_write(rt2x00dev, PHY_CSR6, 0x00080606);
1597 rt2x00pci_register_write(rt2x00dev, PHY_CSR7, 0x00000a08);
1598
1599 rt2x00pci_register_write(rt2x00dev, PCI_CFG_CSR, 0x28ca4404);
1600
1601 rt2x00pci_register_write(rt2x00dev, TEST_MODE_CSR, 0x00000200);
1602
1603 rt2x00pci_register_write(rt2x00dev, M2H_CMD_DONE_CSR, 0xffffffff);
1604
1605 /*
1606 * Clear all beacons
1607 * For the Beacon base registers we only need to clear
1608 * the first byte since that byte contains the VALID and OWNER
1609 * bits which (when set to 0) will invalidate the entire beacon.
1610 */
1611 rt2x00pci_register_write(rt2x00dev, HW_BEACON_BASE0, 0);
1612 rt2x00pci_register_write(rt2x00dev, HW_BEACON_BASE1, 0);
1613 rt2x00pci_register_write(rt2x00dev, HW_BEACON_BASE2, 0);
1614 rt2x00pci_register_write(rt2x00dev, HW_BEACON_BASE3, 0);
1615
1616 /*
1617 * We must clear the error counters.
1618 * These registers are cleared on read,
1619 * so we may pass a useless variable to store the value.
1620 */
1621 rt2x00pci_register_read(rt2x00dev, STA_CSR0, ®);
1622 rt2x00pci_register_read(rt2x00dev, STA_CSR1, ®);
1623 rt2x00pci_register_read(rt2x00dev, STA_CSR2, ®);
1624
1625 /*
1626 * Reset MAC and BBP registers.
1627 */
1628 rt2x00pci_register_read(rt2x00dev, MAC_CSR1, ®);
1629 rt2x00_set_field32(®, MAC_CSR1_SOFT_RESET, 1);
1630 rt2x00_set_field32(®, MAC_CSR1_BBP_RESET, 1);
1631 rt2x00pci_register_write(rt2x00dev, MAC_CSR1, reg);
1632
1633 rt2x00pci_register_read(rt2x00dev, MAC_CSR1, ®);
1634 rt2x00_set_field32(®, MAC_CSR1_SOFT_RESET, 0);
1635 rt2x00_set_field32(®, MAC_CSR1_BBP_RESET, 0);
1636 rt2x00pci_register_write(rt2x00dev, MAC_CSR1, reg);
1637
1638 rt2x00pci_register_read(rt2x00dev, MAC_CSR1, ®);
1639 rt2x00_set_field32(®, MAC_CSR1_HOST_READY, 1);
1640 rt2x00pci_register_write(rt2x00dev, MAC_CSR1, reg);
1641
1642 return 0;
1643 }
1644
rt61pci_wait_bbp_ready(struct rt2x00_dev * rt2x00dev)1645 static int rt61pci_wait_bbp_ready(struct rt2x00_dev *rt2x00dev)
1646 {
1647 unsigned int i;
1648 u8 value;
1649
1650 for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
1651 rt61pci_bbp_read(rt2x00dev, 0, &value);
1652 if ((value != 0xff) && (value != 0x00))
1653 return 0;
1654 udelay(REGISTER_BUSY_DELAY);
1655 }
1656
1657 ERROR(rt2x00dev, "BBP register access failed, aborting.\n");
1658 return -EACCES;
1659 }
1660
rt61pci_init_bbp(struct rt2x00_dev * rt2x00dev)1661 static int rt61pci_init_bbp(struct rt2x00_dev *rt2x00dev)
1662 {
1663 unsigned int i;
1664 u16 eeprom;
1665 u8 reg_id;
1666 u8 value;
1667
1668 if (unlikely(rt61pci_wait_bbp_ready(rt2x00dev)))
1669 return -EACCES;
1670
1671 rt61pci_bbp_write(rt2x00dev, 3, 0x00);
1672 rt61pci_bbp_write(rt2x00dev, 15, 0x30);
1673 rt61pci_bbp_write(rt2x00dev, 21, 0xc8);
1674 rt61pci_bbp_write(rt2x00dev, 22, 0x38);
1675 rt61pci_bbp_write(rt2x00dev, 23, 0x06);
1676 rt61pci_bbp_write(rt2x00dev, 24, 0xfe);
1677 rt61pci_bbp_write(rt2x00dev, 25, 0x0a);
1678 rt61pci_bbp_write(rt2x00dev, 26, 0x0d);
1679 rt61pci_bbp_write(rt2x00dev, 34, 0x12);
1680 rt61pci_bbp_write(rt2x00dev, 37, 0x07);
1681 rt61pci_bbp_write(rt2x00dev, 39, 0xf8);
1682 rt61pci_bbp_write(rt2x00dev, 41, 0x60);
1683 rt61pci_bbp_write(rt2x00dev, 53, 0x10);
1684 rt61pci_bbp_write(rt2x00dev, 54, 0x18);
1685 rt61pci_bbp_write(rt2x00dev, 60, 0x10);
1686 rt61pci_bbp_write(rt2x00dev, 61, 0x04);
1687 rt61pci_bbp_write(rt2x00dev, 62, 0x04);
1688 rt61pci_bbp_write(rt2x00dev, 75, 0xfe);
1689 rt61pci_bbp_write(rt2x00dev, 86, 0xfe);
1690 rt61pci_bbp_write(rt2x00dev, 88, 0xfe);
1691 rt61pci_bbp_write(rt2x00dev, 90, 0x0f);
1692 rt61pci_bbp_write(rt2x00dev, 99, 0x00);
1693 rt61pci_bbp_write(rt2x00dev, 102, 0x16);
1694 rt61pci_bbp_write(rt2x00dev, 107, 0x04);
1695
1696 for (i = 0; i < EEPROM_BBP_SIZE; i++) {
1697 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBP_START + i, &eeprom);
1698
1699 if (eeprom != 0xffff && eeprom != 0x0000) {
1700 reg_id = rt2x00_get_field16(eeprom, EEPROM_BBP_REG_ID);
1701 value = rt2x00_get_field16(eeprom, EEPROM_BBP_VALUE);
1702 rt61pci_bbp_write(rt2x00dev, reg_id, value);
1703 }
1704 }
1705
1706 return 0;
1707 }
1708
1709 /*
1710 * Device state switch handlers.
1711 */
rt61pci_toggle_irq(struct rt2x00_dev * rt2x00dev,enum dev_state state)1712 static void rt61pci_toggle_irq(struct rt2x00_dev *rt2x00dev,
1713 enum dev_state state)
1714 {
1715 int mask = (state == STATE_RADIO_IRQ_OFF);
1716 u32 reg;
1717 unsigned long flags;
1718
1719 /*
1720 * When interrupts are being enabled, the interrupt registers
1721 * should clear the register to assure a clean state.
1722 */
1723 if (state == STATE_RADIO_IRQ_ON) {
1724 rt2x00pci_register_read(rt2x00dev, INT_SOURCE_CSR, ®);
1725 rt2x00pci_register_write(rt2x00dev, INT_SOURCE_CSR, reg);
1726
1727 rt2x00pci_register_read(rt2x00dev, MCU_INT_SOURCE_CSR, ®);
1728 rt2x00pci_register_write(rt2x00dev, MCU_INT_SOURCE_CSR, reg);
1729 }
1730
1731 /*
1732 * Only toggle the interrupts bits we are going to use.
1733 * Non-checked interrupt bits are disabled by default.
1734 */
1735 spin_lock_irqsave(&rt2x00dev->irqmask_lock, flags);
1736
1737 rt2x00pci_register_read(rt2x00dev, INT_MASK_CSR, ®);
1738 rt2x00_set_field32(®, INT_MASK_CSR_TXDONE, mask);
1739 rt2x00_set_field32(®, INT_MASK_CSR_RXDONE, mask);
1740 rt2x00_set_field32(®, INT_MASK_CSR_BEACON_DONE, mask);
1741 rt2x00_set_field32(®, INT_MASK_CSR_ENABLE_MITIGATION, mask);
1742 rt2x00_set_field32(®, INT_MASK_CSR_MITIGATION_PERIOD, 0xff);
1743 rt2x00pci_register_write(rt2x00dev, INT_MASK_CSR, reg);
1744
1745 rt2x00pci_register_read(rt2x00dev, MCU_INT_MASK_CSR, ®);
1746 rt2x00_set_field32(®, MCU_INT_MASK_CSR_0, mask);
1747 rt2x00_set_field32(®, MCU_INT_MASK_CSR_1, mask);
1748 rt2x00_set_field32(®, MCU_INT_MASK_CSR_2, mask);
1749 rt2x00_set_field32(®, MCU_INT_MASK_CSR_3, mask);
1750 rt2x00_set_field32(®, MCU_INT_MASK_CSR_4, mask);
1751 rt2x00_set_field32(®, MCU_INT_MASK_CSR_5, mask);
1752 rt2x00_set_field32(®, MCU_INT_MASK_CSR_6, mask);
1753 rt2x00_set_field32(®, MCU_INT_MASK_CSR_7, mask);
1754 rt2x00_set_field32(®, MCU_INT_MASK_CSR_TWAKEUP, mask);
1755 rt2x00pci_register_write(rt2x00dev, MCU_INT_MASK_CSR, reg);
1756
1757 spin_unlock_irqrestore(&rt2x00dev->irqmask_lock, flags);
1758
1759 if (state == STATE_RADIO_IRQ_OFF) {
1760 /*
1761 * Ensure that all tasklets are finished.
1762 */
1763 tasklet_kill(&rt2x00dev->txstatus_tasklet);
1764 tasklet_kill(&rt2x00dev->rxdone_tasklet);
1765 tasklet_kill(&rt2x00dev->autowake_tasklet);
1766 tasklet_kill(&rt2x00dev->tbtt_tasklet);
1767 }
1768 }
1769
rt61pci_enable_radio(struct rt2x00_dev * rt2x00dev)1770 static int rt61pci_enable_radio(struct rt2x00_dev *rt2x00dev)
1771 {
1772 u32 reg;
1773
1774 /*
1775 * Initialize all registers.
1776 */
1777 if (unlikely(rt61pci_init_queues(rt2x00dev) ||
1778 rt61pci_init_registers(rt2x00dev) ||
1779 rt61pci_init_bbp(rt2x00dev)))
1780 return -EIO;
1781
1782 /*
1783 * Enable RX.
1784 */
1785 rt2x00pci_register_read(rt2x00dev, RX_CNTL_CSR, ®);
1786 rt2x00_set_field32(®, RX_CNTL_CSR_ENABLE_RX_DMA, 1);
1787 rt2x00pci_register_write(rt2x00dev, RX_CNTL_CSR, reg);
1788
1789 return 0;
1790 }
1791
rt61pci_disable_radio(struct rt2x00_dev * rt2x00dev)1792 static void rt61pci_disable_radio(struct rt2x00_dev *rt2x00dev)
1793 {
1794 /*
1795 * Disable power
1796 */
1797 rt2x00pci_register_write(rt2x00dev, MAC_CSR10, 0x00001818);
1798 }
1799
rt61pci_set_state(struct rt2x00_dev * rt2x00dev,enum dev_state state)1800 static int rt61pci_set_state(struct rt2x00_dev *rt2x00dev, enum dev_state state)
1801 {
1802 u32 reg, reg2;
1803 unsigned int i;
1804 char put_to_sleep;
1805
1806 put_to_sleep = (state != STATE_AWAKE);
1807
1808 rt2x00pci_register_read(rt2x00dev, MAC_CSR12, ®);
1809 rt2x00_set_field32(®, MAC_CSR12_FORCE_WAKEUP, !put_to_sleep);
1810 rt2x00_set_field32(®, MAC_CSR12_PUT_TO_SLEEP, put_to_sleep);
1811 rt2x00pci_register_write(rt2x00dev, MAC_CSR12, reg);
1812
1813 /*
1814 * Device is not guaranteed to be in the requested state yet.
1815 * We must wait until the register indicates that the
1816 * device has entered the correct state.
1817 */
1818 for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
1819 rt2x00pci_register_read(rt2x00dev, MAC_CSR12, ®2);
1820 state = rt2x00_get_field32(reg2, MAC_CSR12_BBP_CURRENT_STATE);
1821 if (state == !put_to_sleep)
1822 return 0;
1823 rt2x00pci_register_write(rt2x00dev, MAC_CSR12, reg);
1824 msleep(10);
1825 }
1826
1827 return -EBUSY;
1828 }
1829
rt61pci_set_device_state(struct rt2x00_dev * rt2x00dev,enum dev_state state)1830 static int rt61pci_set_device_state(struct rt2x00_dev *rt2x00dev,
1831 enum dev_state state)
1832 {
1833 int retval = 0;
1834
1835 switch (state) {
1836 case STATE_RADIO_ON:
1837 retval = rt61pci_enable_radio(rt2x00dev);
1838 break;
1839 case STATE_RADIO_OFF:
1840 rt61pci_disable_radio(rt2x00dev);
1841 break;
1842 case STATE_RADIO_IRQ_ON:
1843 case STATE_RADIO_IRQ_OFF:
1844 rt61pci_toggle_irq(rt2x00dev, state);
1845 break;
1846 case STATE_DEEP_SLEEP:
1847 case STATE_SLEEP:
1848 case STATE_STANDBY:
1849 case STATE_AWAKE:
1850 retval = rt61pci_set_state(rt2x00dev, state);
1851 break;
1852 default:
1853 retval = -ENOTSUPP;
1854 break;
1855 }
1856
1857 if (unlikely(retval))
1858 ERROR(rt2x00dev, "Device failed to enter state %d (%d).\n",
1859 state, retval);
1860
1861 return retval;
1862 }
1863
1864 /*
1865 * TX descriptor initialization
1866 */
rt61pci_write_tx_desc(struct queue_entry * entry,struct txentry_desc * txdesc)1867 static void rt61pci_write_tx_desc(struct queue_entry *entry,
1868 struct txentry_desc *txdesc)
1869 {
1870 struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
1871 struct queue_entry_priv_pci *entry_priv = entry->priv_data;
1872 __le32 *txd = entry_priv->desc;
1873 u32 word;
1874
1875 /*
1876 * Start writing the descriptor words.
1877 */
1878 rt2x00_desc_read(txd, 1, &word);
1879 rt2x00_set_field32(&word, TXD_W1_HOST_Q_ID, entry->queue->qid);
1880 rt2x00_set_field32(&word, TXD_W1_AIFSN, entry->queue->aifs);
1881 rt2x00_set_field32(&word, TXD_W1_CWMIN, entry->queue->cw_min);
1882 rt2x00_set_field32(&word, TXD_W1_CWMAX, entry->queue->cw_max);
1883 rt2x00_set_field32(&word, TXD_W1_IV_OFFSET, txdesc->iv_offset);
1884 rt2x00_set_field32(&word, TXD_W1_HW_SEQUENCE,
1885 test_bit(ENTRY_TXD_GENERATE_SEQ, &txdesc->flags));
1886 rt2x00_set_field32(&word, TXD_W1_BUFFER_COUNT, 1);
1887 rt2x00_desc_write(txd, 1, word);
1888
1889 rt2x00_desc_read(txd, 2, &word);
1890 rt2x00_set_field32(&word, TXD_W2_PLCP_SIGNAL, txdesc->u.plcp.signal);
1891 rt2x00_set_field32(&word, TXD_W2_PLCP_SERVICE, txdesc->u.plcp.service);
1892 rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_LOW,
1893 txdesc->u.plcp.length_low);
1894 rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_HIGH,
1895 txdesc->u.plcp.length_high);
1896 rt2x00_desc_write(txd, 2, word);
1897
1898 if (test_bit(ENTRY_TXD_ENCRYPT, &txdesc->flags)) {
1899 _rt2x00_desc_write(txd, 3, skbdesc->iv[0]);
1900 _rt2x00_desc_write(txd, 4, skbdesc->iv[1]);
1901 }
1902
1903 rt2x00_desc_read(txd, 5, &word);
1904 rt2x00_set_field32(&word, TXD_W5_PID_TYPE, entry->queue->qid);
1905 rt2x00_set_field32(&word, TXD_W5_PID_SUBTYPE,
1906 skbdesc->entry->entry_idx);
1907 rt2x00_set_field32(&word, TXD_W5_TX_POWER,
1908 TXPOWER_TO_DEV(entry->queue->rt2x00dev->tx_power));
1909 rt2x00_set_field32(&word, TXD_W5_WAITING_DMA_DONE_INT, 1);
1910 rt2x00_desc_write(txd, 5, word);
1911
1912 if (entry->queue->qid != QID_BEACON) {
1913 rt2x00_desc_read(txd, 6, &word);
1914 rt2x00_set_field32(&word, TXD_W6_BUFFER_PHYSICAL_ADDRESS,
1915 skbdesc->skb_dma);
1916 rt2x00_desc_write(txd, 6, word);
1917
1918 rt2x00_desc_read(txd, 11, &word);
1919 rt2x00_set_field32(&word, TXD_W11_BUFFER_LENGTH0,
1920 txdesc->length);
1921 rt2x00_desc_write(txd, 11, word);
1922 }
1923
1924 /*
1925 * Writing TXD word 0 must the last to prevent a race condition with
1926 * the device, whereby the device may take hold of the TXD before we
1927 * finished updating it.
1928 */
1929 rt2x00_desc_read(txd, 0, &word);
1930 rt2x00_set_field32(&word, TXD_W0_OWNER_NIC, 1);
1931 rt2x00_set_field32(&word, TXD_W0_VALID, 1);
1932 rt2x00_set_field32(&word, TXD_W0_MORE_FRAG,
1933 test_bit(ENTRY_TXD_MORE_FRAG, &txdesc->flags));
1934 rt2x00_set_field32(&word, TXD_W0_ACK,
1935 test_bit(ENTRY_TXD_ACK, &txdesc->flags));
1936 rt2x00_set_field32(&word, TXD_W0_TIMESTAMP,
1937 test_bit(ENTRY_TXD_REQ_TIMESTAMP, &txdesc->flags));
1938 rt2x00_set_field32(&word, TXD_W0_OFDM,
1939 (txdesc->rate_mode == RATE_MODE_OFDM));
1940 rt2x00_set_field32(&word, TXD_W0_IFS, txdesc->u.plcp.ifs);
1941 rt2x00_set_field32(&word, TXD_W0_RETRY_MODE,
1942 test_bit(ENTRY_TXD_RETRY_MODE, &txdesc->flags));
1943 rt2x00_set_field32(&word, TXD_W0_TKIP_MIC,
1944 test_bit(ENTRY_TXD_ENCRYPT_MMIC, &txdesc->flags));
1945 rt2x00_set_field32(&word, TXD_W0_KEY_TABLE,
1946 test_bit(ENTRY_TXD_ENCRYPT_PAIRWISE, &txdesc->flags));
1947 rt2x00_set_field32(&word, TXD_W0_KEY_INDEX, txdesc->key_idx);
1948 rt2x00_set_field32(&word, TXD_W0_DATABYTE_COUNT, txdesc->length);
1949 rt2x00_set_field32(&word, TXD_W0_BURST,
1950 test_bit(ENTRY_TXD_BURST, &txdesc->flags));
1951 rt2x00_set_field32(&word, TXD_W0_CIPHER_ALG, txdesc->cipher);
1952 rt2x00_desc_write(txd, 0, word);
1953
1954 /*
1955 * Register descriptor details in skb frame descriptor.
1956 */
1957 skbdesc->desc = txd;
1958 skbdesc->desc_len = (entry->queue->qid == QID_BEACON) ? TXINFO_SIZE :
1959 TXD_DESC_SIZE;
1960 }
1961
1962 /*
1963 * TX data initialization
1964 */
rt61pci_write_beacon(struct queue_entry * entry,struct txentry_desc * txdesc)1965 static void rt61pci_write_beacon(struct queue_entry *entry,
1966 struct txentry_desc *txdesc)
1967 {
1968 struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
1969 struct queue_entry_priv_pci *entry_priv = entry->priv_data;
1970 unsigned int beacon_base;
1971 unsigned int padding_len;
1972 u32 orig_reg, reg;
1973
1974 /*
1975 * Disable beaconing while we are reloading the beacon data,
1976 * otherwise we might be sending out invalid data.
1977 */
1978 rt2x00pci_register_read(rt2x00dev, TXRX_CSR9, ®);
1979 orig_reg = reg;
1980 rt2x00_set_field32(®, TXRX_CSR9_BEACON_GEN, 0);
1981 rt2x00pci_register_write(rt2x00dev, TXRX_CSR9, reg);
1982
1983 /*
1984 * Write the TX descriptor for the beacon.
1985 */
1986 rt61pci_write_tx_desc(entry, txdesc);
1987
1988 /*
1989 * Dump beacon to userspace through debugfs.
1990 */
1991 rt2x00debug_dump_frame(rt2x00dev, DUMP_FRAME_BEACON, entry->skb);
1992
1993 /*
1994 * Write entire beacon with descriptor and padding to register.
1995 */
1996 padding_len = roundup(entry->skb->len, 4) - entry->skb->len;
1997 if (padding_len && skb_pad(entry->skb, padding_len)) {
1998 ERROR(rt2x00dev, "Failure padding beacon, aborting\n");
1999 /* skb freed by skb_pad() on failure */
2000 entry->skb = NULL;
2001 rt2x00pci_register_write(rt2x00dev, TXRX_CSR9, orig_reg);
2002 return;
2003 }
2004
2005 beacon_base = HW_BEACON_OFFSET(entry->entry_idx);
2006 rt2x00pci_register_multiwrite(rt2x00dev, beacon_base,
2007 entry_priv->desc, TXINFO_SIZE);
2008 rt2x00pci_register_multiwrite(rt2x00dev, beacon_base + TXINFO_SIZE,
2009 entry->skb->data,
2010 entry->skb->len + padding_len);
2011
2012 /*
2013 * Enable beaconing again.
2014 *
2015 * For Wi-Fi faily generated beacons between participating
2016 * stations. Set TBTT phase adaptive adjustment step to 8us.
2017 */
2018 rt2x00pci_register_write(rt2x00dev, TXRX_CSR10, 0x00001008);
2019
2020 rt2x00_set_field32(®, TXRX_CSR9_BEACON_GEN, 1);
2021 rt2x00pci_register_write(rt2x00dev, TXRX_CSR9, reg);
2022
2023 /*
2024 * Clean up beacon skb.
2025 */
2026 dev_kfree_skb_any(entry->skb);
2027 entry->skb = NULL;
2028 }
2029
rt61pci_clear_beacon(struct queue_entry * entry)2030 static void rt61pci_clear_beacon(struct queue_entry *entry)
2031 {
2032 struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
2033 u32 reg;
2034
2035 /*
2036 * Disable beaconing while we are reloading the beacon data,
2037 * otherwise we might be sending out invalid data.
2038 */
2039 rt2x00pci_register_read(rt2x00dev, TXRX_CSR9, ®);
2040 rt2x00_set_field32(®, TXRX_CSR9_BEACON_GEN, 0);
2041 rt2x00pci_register_write(rt2x00dev, TXRX_CSR9, reg);
2042
2043 /*
2044 * Clear beacon.
2045 */
2046 rt2x00pci_register_write(rt2x00dev,
2047 HW_BEACON_OFFSET(entry->entry_idx), 0);
2048
2049 /*
2050 * Enable beaconing again.
2051 */
2052 rt2x00_set_field32(®, TXRX_CSR9_BEACON_GEN, 1);
2053 rt2x00pci_register_write(rt2x00dev, TXRX_CSR9, reg);
2054 }
2055
2056 /*
2057 * RX control handlers
2058 */
rt61pci_agc_to_rssi(struct rt2x00_dev * rt2x00dev,int rxd_w1)2059 static int rt61pci_agc_to_rssi(struct rt2x00_dev *rt2x00dev, int rxd_w1)
2060 {
2061 u8 offset = rt2x00dev->lna_gain;
2062 u8 lna;
2063
2064 lna = rt2x00_get_field32(rxd_w1, RXD_W1_RSSI_LNA);
2065 switch (lna) {
2066 case 3:
2067 offset += 90;
2068 break;
2069 case 2:
2070 offset += 74;
2071 break;
2072 case 1:
2073 offset += 64;
2074 break;
2075 default:
2076 return 0;
2077 }
2078
2079 if (rt2x00dev->curr_band == IEEE80211_BAND_5GHZ) {
2080 if (lna == 3 || lna == 2)
2081 offset += 10;
2082 }
2083
2084 return rt2x00_get_field32(rxd_w1, RXD_W1_RSSI_AGC) * 2 - offset;
2085 }
2086
rt61pci_fill_rxdone(struct queue_entry * entry,struct rxdone_entry_desc * rxdesc)2087 static void rt61pci_fill_rxdone(struct queue_entry *entry,
2088 struct rxdone_entry_desc *rxdesc)
2089 {
2090 struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
2091 struct queue_entry_priv_pci *entry_priv = entry->priv_data;
2092 u32 word0;
2093 u32 word1;
2094
2095 rt2x00_desc_read(entry_priv->desc, 0, &word0);
2096 rt2x00_desc_read(entry_priv->desc, 1, &word1);
2097
2098 if (rt2x00_get_field32(word0, RXD_W0_CRC_ERROR))
2099 rxdesc->flags |= RX_FLAG_FAILED_FCS_CRC;
2100
2101 rxdesc->cipher = rt2x00_get_field32(word0, RXD_W0_CIPHER_ALG);
2102 rxdesc->cipher_status = rt2x00_get_field32(word0, RXD_W0_CIPHER_ERROR);
2103
2104 if (rxdesc->cipher != CIPHER_NONE) {
2105 _rt2x00_desc_read(entry_priv->desc, 2, &rxdesc->iv[0]);
2106 _rt2x00_desc_read(entry_priv->desc, 3, &rxdesc->iv[1]);
2107 rxdesc->dev_flags |= RXDONE_CRYPTO_IV;
2108
2109 _rt2x00_desc_read(entry_priv->desc, 4, &rxdesc->icv);
2110 rxdesc->dev_flags |= RXDONE_CRYPTO_ICV;
2111
2112 /*
2113 * Hardware has stripped IV/EIV data from 802.11 frame during
2114 * decryption. It has provided the data separately but rt2x00lib
2115 * should decide if it should be reinserted.
2116 */
2117 rxdesc->flags |= RX_FLAG_IV_STRIPPED;
2118
2119 /*
2120 * The hardware has already checked the Michael Mic and has
2121 * stripped it from the frame. Signal this to mac80211.
2122 */
2123 rxdesc->flags |= RX_FLAG_MMIC_STRIPPED;
2124
2125 if (rxdesc->cipher_status == RX_CRYPTO_SUCCESS)
2126 rxdesc->flags |= RX_FLAG_DECRYPTED;
2127 else if (rxdesc->cipher_status == RX_CRYPTO_FAIL_MIC)
2128 rxdesc->flags |= RX_FLAG_MMIC_ERROR;
2129 }
2130
2131 /*
2132 * Obtain the status about this packet.
2133 * When frame was received with an OFDM bitrate,
2134 * the signal is the PLCP value. If it was received with
2135 * a CCK bitrate the signal is the rate in 100kbit/s.
2136 */
2137 rxdesc->signal = rt2x00_get_field32(word1, RXD_W1_SIGNAL);
2138 rxdesc->rssi = rt61pci_agc_to_rssi(rt2x00dev, word1);
2139 rxdesc->size = rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT);
2140
2141 if (rt2x00_get_field32(word0, RXD_W0_OFDM))
2142 rxdesc->dev_flags |= RXDONE_SIGNAL_PLCP;
2143 else
2144 rxdesc->dev_flags |= RXDONE_SIGNAL_BITRATE;
2145 if (rt2x00_get_field32(word0, RXD_W0_MY_BSS))
2146 rxdesc->dev_flags |= RXDONE_MY_BSS;
2147 }
2148
2149 /*
2150 * Interrupt functions.
2151 */
rt61pci_txdone(struct rt2x00_dev * rt2x00dev)2152 static void rt61pci_txdone(struct rt2x00_dev *rt2x00dev)
2153 {
2154 struct data_queue *queue;
2155 struct queue_entry *entry;
2156 struct queue_entry *entry_done;
2157 struct queue_entry_priv_pci *entry_priv;
2158 struct txdone_entry_desc txdesc;
2159 u32 word;
2160 u32 reg;
2161 int type;
2162 int index;
2163 int i;
2164
2165 /*
2166 * TX_STA_FIFO is a stack of X entries, hence read TX_STA_FIFO
2167 * at most X times and also stop processing once the TX_STA_FIFO_VALID
2168 * flag is not set anymore.
2169 *
2170 * The legacy drivers use X=TX_RING_SIZE but state in a comment
2171 * that the TX_STA_FIFO stack has a size of 16. We stick to our
2172 * tx ring size for now.
2173 */
2174 for (i = 0; i < rt2x00dev->ops->tx->entry_num; i++) {
2175 rt2x00pci_register_read(rt2x00dev, STA_CSR4, ®);
2176 if (!rt2x00_get_field32(reg, STA_CSR4_VALID))
2177 break;
2178
2179 /*
2180 * Skip this entry when it contains an invalid
2181 * queue identication number.
2182 */
2183 type = rt2x00_get_field32(reg, STA_CSR4_PID_TYPE);
2184 queue = rt2x00queue_get_tx_queue(rt2x00dev, type);
2185 if (unlikely(!queue))
2186 continue;
2187
2188 /*
2189 * Skip this entry when it contains an invalid
2190 * index number.
2191 */
2192 index = rt2x00_get_field32(reg, STA_CSR4_PID_SUBTYPE);
2193 if (unlikely(index >= queue->limit))
2194 continue;
2195
2196 entry = &queue->entries[index];
2197 entry_priv = entry->priv_data;
2198 rt2x00_desc_read(entry_priv->desc, 0, &word);
2199
2200 if (rt2x00_get_field32(word, TXD_W0_OWNER_NIC) ||
2201 !rt2x00_get_field32(word, TXD_W0_VALID))
2202 return;
2203
2204 entry_done = rt2x00queue_get_entry(queue, Q_INDEX_DONE);
2205 while (entry != entry_done) {
2206 /* Catch up.
2207 * Just report any entries we missed as failed.
2208 */
2209 WARNING(rt2x00dev,
2210 "TX status report missed for entry %d\n",
2211 entry_done->entry_idx);
2212
2213 rt2x00lib_txdone_noinfo(entry_done, TXDONE_UNKNOWN);
2214 entry_done = rt2x00queue_get_entry(queue, Q_INDEX_DONE);
2215 }
2216
2217 /*
2218 * Obtain the status about this packet.
2219 */
2220 txdesc.flags = 0;
2221 switch (rt2x00_get_field32(reg, STA_CSR4_TX_RESULT)) {
2222 case 0: /* Success, maybe with retry */
2223 __set_bit(TXDONE_SUCCESS, &txdesc.flags);
2224 break;
2225 case 6: /* Failure, excessive retries */
2226 __set_bit(TXDONE_EXCESSIVE_RETRY, &txdesc.flags);
2227 /* Don't break, this is a failed frame! */
2228 default: /* Failure */
2229 __set_bit(TXDONE_FAILURE, &txdesc.flags);
2230 }
2231 txdesc.retry = rt2x00_get_field32(reg, STA_CSR4_RETRY_COUNT);
2232
2233 /*
2234 * the frame was retried at least once
2235 * -> hw used fallback rates
2236 */
2237 if (txdesc.retry)
2238 __set_bit(TXDONE_FALLBACK, &txdesc.flags);
2239
2240 rt2x00lib_txdone(entry, &txdesc);
2241 }
2242 }
2243
rt61pci_wakeup(struct rt2x00_dev * rt2x00dev)2244 static void rt61pci_wakeup(struct rt2x00_dev *rt2x00dev)
2245 {
2246 struct ieee80211_conf conf = { .flags = 0 };
2247 struct rt2x00lib_conf libconf = { .conf = &conf };
2248
2249 rt61pci_config(rt2x00dev, &libconf, IEEE80211_CONF_CHANGE_PS);
2250 }
2251
rt61pci_enable_interrupt(struct rt2x00_dev * rt2x00dev,struct rt2x00_field32 irq_field)2252 static inline void rt61pci_enable_interrupt(struct rt2x00_dev *rt2x00dev,
2253 struct rt2x00_field32 irq_field)
2254 {
2255 u32 reg;
2256
2257 /*
2258 * Enable a single interrupt. The interrupt mask register
2259 * access needs locking.
2260 */
2261 spin_lock_irq(&rt2x00dev->irqmask_lock);
2262
2263 rt2x00pci_register_read(rt2x00dev, INT_MASK_CSR, ®);
2264 rt2x00_set_field32(®, irq_field, 0);
2265 rt2x00pci_register_write(rt2x00dev, INT_MASK_CSR, reg);
2266
2267 spin_unlock_irq(&rt2x00dev->irqmask_lock);
2268 }
2269
rt61pci_enable_mcu_interrupt(struct rt2x00_dev * rt2x00dev,struct rt2x00_field32 irq_field)2270 static void rt61pci_enable_mcu_interrupt(struct rt2x00_dev *rt2x00dev,
2271 struct rt2x00_field32 irq_field)
2272 {
2273 u32 reg;
2274
2275 /*
2276 * Enable a single MCU interrupt. The interrupt mask register
2277 * access needs locking.
2278 */
2279 spin_lock_irq(&rt2x00dev->irqmask_lock);
2280
2281 rt2x00pci_register_read(rt2x00dev, MCU_INT_MASK_CSR, ®);
2282 rt2x00_set_field32(®, irq_field, 0);
2283 rt2x00pci_register_write(rt2x00dev, MCU_INT_MASK_CSR, reg);
2284
2285 spin_unlock_irq(&rt2x00dev->irqmask_lock);
2286 }
2287
rt61pci_txstatus_tasklet(unsigned long data)2288 static void rt61pci_txstatus_tasklet(unsigned long data)
2289 {
2290 struct rt2x00_dev *rt2x00dev = (struct rt2x00_dev *)data;
2291 rt61pci_txdone(rt2x00dev);
2292 if (test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
2293 rt61pci_enable_interrupt(rt2x00dev, INT_MASK_CSR_TXDONE);
2294 }
2295
rt61pci_tbtt_tasklet(unsigned long data)2296 static void rt61pci_tbtt_tasklet(unsigned long data)
2297 {
2298 struct rt2x00_dev *rt2x00dev = (struct rt2x00_dev *)data;
2299 rt2x00lib_beacondone(rt2x00dev);
2300 if (test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
2301 rt61pci_enable_interrupt(rt2x00dev, INT_MASK_CSR_BEACON_DONE);
2302 }
2303
rt61pci_rxdone_tasklet(unsigned long data)2304 static void rt61pci_rxdone_tasklet(unsigned long data)
2305 {
2306 struct rt2x00_dev *rt2x00dev = (struct rt2x00_dev *)data;
2307 if (rt2x00pci_rxdone(rt2x00dev))
2308 tasklet_schedule(&rt2x00dev->rxdone_tasklet);
2309 else if (test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
2310 rt61pci_enable_interrupt(rt2x00dev, INT_MASK_CSR_RXDONE);
2311 }
2312
rt61pci_autowake_tasklet(unsigned long data)2313 static void rt61pci_autowake_tasklet(unsigned long data)
2314 {
2315 struct rt2x00_dev *rt2x00dev = (struct rt2x00_dev *)data;
2316 rt61pci_wakeup(rt2x00dev);
2317 rt2x00pci_register_write(rt2x00dev,
2318 M2H_CMD_DONE_CSR, 0xffffffff);
2319 if (test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
2320 rt61pci_enable_mcu_interrupt(rt2x00dev, MCU_INT_MASK_CSR_TWAKEUP);
2321 }
2322
rt61pci_interrupt(int irq,void * dev_instance)2323 static irqreturn_t rt61pci_interrupt(int irq, void *dev_instance)
2324 {
2325 struct rt2x00_dev *rt2x00dev = dev_instance;
2326 u32 reg_mcu, mask_mcu;
2327 u32 reg, mask;
2328
2329 /*
2330 * Get the interrupt sources & saved to local variable.
2331 * Write register value back to clear pending interrupts.
2332 */
2333 rt2x00pci_register_read(rt2x00dev, MCU_INT_SOURCE_CSR, ®_mcu);
2334 rt2x00pci_register_write(rt2x00dev, MCU_INT_SOURCE_CSR, reg_mcu);
2335
2336 rt2x00pci_register_read(rt2x00dev, INT_SOURCE_CSR, ®);
2337 rt2x00pci_register_write(rt2x00dev, INT_SOURCE_CSR, reg);
2338
2339 if (!reg && !reg_mcu)
2340 return IRQ_NONE;
2341
2342 if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
2343 return IRQ_HANDLED;
2344
2345 /*
2346 * Schedule tasklets for interrupt handling.
2347 */
2348 if (rt2x00_get_field32(reg, INT_SOURCE_CSR_RXDONE))
2349 tasklet_schedule(&rt2x00dev->rxdone_tasklet);
2350
2351 if (rt2x00_get_field32(reg, INT_SOURCE_CSR_TXDONE))
2352 tasklet_schedule(&rt2x00dev->txstatus_tasklet);
2353
2354 if (rt2x00_get_field32(reg, INT_SOURCE_CSR_BEACON_DONE))
2355 tasklet_hi_schedule(&rt2x00dev->tbtt_tasklet);
2356
2357 if (rt2x00_get_field32(reg_mcu, MCU_INT_SOURCE_CSR_TWAKEUP))
2358 tasklet_schedule(&rt2x00dev->autowake_tasklet);
2359
2360 /*
2361 * Since INT_MASK_CSR and INT_SOURCE_CSR use the same bits
2362 * for interrupts and interrupt masks we can just use the value of
2363 * INT_SOURCE_CSR to create the interrupt mask.
2364 */
2365 mask = reg;
2366 mask_mcu = reg_mcu;
2367
2368 /*
2369 * Disable all interrupts for which a tasklet was scheduled right now,
2370 * the tasklet will reenable the appropriate interrupts.
2371 */
2372 spin_lock(&rt2x00dev->irqmask_lock);
2373
2374 rt2x00pci_register_read(rt2x00dev, INT_MASK_CSR, ®);
2375 reg |= mask;
2376 rt2x00pci_register_write(rt2x00dev, INT_MASK_CSR, reg);
2377
2378 rt2x00pci_register_read(rt2x00dev, MCU_INT_MASK_CSR, ®);
2379 reg |= mask_mcu;
2380 rt2x00pci_register_write(rt2x00dev, MCU_INT_MASK_CSR, reg);
2381
2382 spin_unlock(&rt2x00dev->irqmask_lock);
2383
2384 return IRQ_HANDLED;
2385 }
2386
2387 /*
2388 * Device probe functions.
2389 */
rt61pci_validate_eeprom(struct rt2x00_dev * rt2x00dev)2390 static int rt61pci_validate_eeprom(struct rt2x00_dev *rt2x00dev)
2391 {
2392 struct eeprom_93cx6 eeprom;
2393 u32 reg;
2394 u16 word;
2395 u8 *mac;
2396 s8 value;
2397
2398 rt2x00pci_register_read(rt2x00dev, E2PROM_CSR, ®);
2399
2400 eeprom.data = rt2x00dev;
2401 eeprom.register_read = rt61pci_eepromregister_read;
2402 eeprom.register_write = rt61pci_eepromregister_write;
2403 eeprom.width = rt2x00_get_field32(reg, E2PROM_CSR_TYPE_93C46) ?
2404 PCI_EEPROM_WIDTH_93C46 : PCI_EEPROM_WIDTH_93C66;
2405 eeprom.reg_data_in = 0;
2406 eeprom.reg_data_out = 0;
2407 eeprom.reg_data_clock = 0;
2408 eeprom.reg_chip_select = 0;
2409
2410 eeprom_93cx6_multiread(&eeprom, EEPROM_BASE, rt2x00dev->eeprom,
2411 EEPROM_SIZE / sizeof(u16));
2412
2413 /*
2414 * Start validation of the data that has been read.
2415 */
2416 mac = rt2x00_eeprom_addr(rt2x00dev, EEPROM_MAC_ADDR_0);
2417 if (!is_valid_ether_addr(mac)) {
2418 random_ether_addr(mac);
2419 EEPROM(rt2x00dev, "MAC: %pM\n", mac);
2420 }
2421
2422 rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &word);
2423 if (word == 0xffff) {
2424 rt2x00_set_field16(&word, EEPROM_ANTENNA_NUM, 2);
2425 rt2x00_set_field16(&word, EEPROM_ANTENNA_TX_DEFAULT,
2426 ANTENNA_B);
2427 rt2x00_set_field16(&word, EEPROM_ANTENNA_RX_DEFAULT,
2428 ANTENNA_B);
2429 rt2x00_set_field16(&word, EEPROM_ANTENNA_FRAME_TYPE, 0);
2430 rt2x00_set_field16(&word, EEPROM_ANTENNA_DYN_TXAGC, 0);
2431 rt2x00_set_field16(&word, EEPROM_ANTENNA_HARDWARE_RADIO, 0);
2432 rt2x00_set_field16(&word, EEPROM_ANTENNA_RF_TYPE, RF5225);
2433 rt2x00_eeprom_write(rt2x00dev, EEPROM_ANTENNA, word);
2434 EEPROM(rt2x00dev, "Antenna: 0x%04x\n", word);
2435 }
2436
2437 rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &word);
2438 if (word == 0xffff) {
2439 rt2x00_set_field16(&word, EEPROM_NIC_ENABLE_DIVERSITY, 0);
2440 rt2x00_set_field16(&word, EEPROM_NIC_TX_DIVERSITY, 0);
2441 rt2x00_set_field16(&word, EEPROM_NIC_RX_FIXED, 0);
2442 rt2x00_set_field16(&word, EEPROM_NIC_TX_FIXED, 0);
2443 rt2x00_set_field16(&word, EEPROM_NIC_EXTERNAL_LNA_BG, 0);
2444 rt2x00_set_field16(&word, EEPROM_NIC_CARDBUS_ACCEL, 0);
2445 rt2x00_set_field16(&word, EEPROM_NIC_EXTERNAL_LNA_A, 0);
2446 rt2x00_eeprom_write(rt2x00dev, EEPROM_NIC, word);
2447 EEPROM(rt2x00dev, "NIC: 0x%04x\n", word);
2448 }
2449
2450 rt2x00_eeprom_read(rt2x00dev, EEPROM_LED, &word);
2451 if (word == 0xffff) {
2452 rt2x00_set_field16(&word, EEPROM_LED_LED_MODE,
2453 LED_MODE_DEFAULT);
2454 rt2x00_eeprom_write(rt2x00dev, EEPROM_LED, word);
2455 EEPROM(rt2x00dev, "Led: 0x%04x\n", word);
2456 }
2457
2458 rt2x00_eeprom_read(rt2x00dev, EEPROM_FREQ, &word);
2459 if (word == 0xffff) {
2460 rt2x00_set_field16(&word, EEPROM_FREQ_OFFSET, 0);
2461 rt2x00_set_field16(&word, EEPROM_FREQ_SEQ, 0);
2462 rt2x00_eeprom_write(rt2x00dev, EEPROM_FREQ, word);
2463 EEPROM(rt2x00dev, "Freq: 0x%04x\n", word);
2464 }
2465
2466 rt2x00_eeprom_read(rt2x00dev, EEPROM_RSSI_OFFSET_BG, &word);
2467 if (word == 0xffff) {
2468 rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_BG_1, 0);
2469 rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_BG_2, 0);
2470 rt2x00_eeprom_write(rt2x00dev, EEPROM_RSSI_OFFSET_BG, word);
2471 EEPROM(rt2x00dev, "RSSI OFFSET BG: 0x%04x\n", word);
2472 } else {
2473 value = rt2x00_get_field16(word, EEPROM_RSSI_OFFSET_BG_1);
2474 if (value < -10 || value > 10)
2475 rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_BG_1, 0);
2476 value = rt2x00_get_field16(word, EEPROM_RSSI_OFFSET_BG_2);
2477 if (value < -10 || value > 10)
2478 rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_BG_2, 0);
2479 rt2x00_eeprom_write(rt2x00dev, EEPROM_RSSI_OFFSET_BG, word);
2480 }
2481
2482 rt2x00_eeprom_read(rt2x00dev, EEPROM_RSSI_OFFSET_A, &word);
2483 if (word == 0xffff) {
2484 rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_A_1, 0);
2485 rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_A_2, 0);
2486 rt2x00_eeprom_write(rt2x00dev, EEPROM_RSSI_OFFSET_A, word);
2487 EEPROM(rt2x00dev, "RSSI OFFSET A: 0x%04x\n", word);
2488 } else {
2489 value = rt2x00_get_field16(word, EEPROM_RSSI_OFFSET_A_1);
2490 if (value < -10 || value > 10)
2491 rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_A_1, 0);
2492 value = rt2x00_get_field16(word, EEPROM_RSSI_OFFSET_A_2);
2493 if (value < -10 || value > 10)
2494 rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_A_2, 0);
2495 rt2x00_eeprom_write(rt2x00dev, EEPROM_RSSI_OFFSET_A, word);
2496 }
2497
2498 return 0;
2499 }
2500
rt61pci_init_eeprom(struct rt2x00_dev * rt2x00dev)2501 static int rt61pci_init_eeprom(struct rt2x00_dev *rt2x00dev)
2502 {
2503 u32 reg;
2504 u16 value;
2505 u16 eeprom;
2506
2507 /*
2508 * Read EEPROM word for configuration.
2509 */
2510 rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &eeprom);
2511
2512 /*
2513 * Identify RF chipset.
2514 */
2515 value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RF_TYPE);
2516 rt2x00pci_register_read(rt2x00dev, MAC_CSR0, ®);
2517 rt2x00_set_chip(rt2x00dev, rt2x00_get_field32(reg, MAC_CSR0_CHIPSET),
2518 value, rt2x00_get_field32(reg, MAC_CSR0_REVISION));
2519
2520 if (!rt2x00_rf(rt2x00dev, RF5225) &&
2521 !rt2x00_rf(rt2x00dev, RF5325) &&
2522 !rt2x00_rf(rt2x00dev, RF2527) &&
2523 !rt2x00_rf(rt2x00dev, RF2529)) {
2524 ERROR(rt2x00dev, "Invalid RF chipset detected.\n");
2525 return -ENODEV;
2526 }
2527
2528 /*
2529 * Determine number of antennas.
2530 */
2531 if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_NUM) == 2)
2532 __set_bit(CAPABILITY_DOUBLE_ANTENNA, &rt2x00dev->cap_flags);
2533
2534 /*
2535 * Identify default antenna configuration.
2536 */
2537 rt2x00dev->default_ant.tx =
2538 rt2x00_get_field16(eeprom, EEPROM_ANTENNA_TX_DEFAULT);
2539 rt2x00dev->default_ant.rx =
2540 rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RX_DEFAULT);
2541
2542 /*
2543 * Read the Frame type.
2544 */
2545 if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_FRAME_TYPE))
2546 __set_bit(CAPABILITY_FRAME_TYPE, &rt2x00dev->cap_flags);
2547
2548 /*
2549 * Detect if this device has a hardware controlled radio.
2550 */
2551 if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_HARDWARE_RADIO))
2552 __set_bit(CAPABILITY_HW_BUTTON, &rt2x00dev->cap_flags);
2553
2554 /*
2555 * Read frequency offset and RF programming sequence.
2556 */
2557 rt2x00_eeprom_read(rt2x00dev, EEPROM_FREQ, &eeprom);
2558 if (rt2x00_get_field16(eeprom, EEPROM_FREQ_SEQ))
2559 __set_bit(CAPABILITY_RF_SEQUENCE, &rt2x00dev->cap_flags);
2560
2561 rt2x00dev->freq_offset = rt2x00_get_field16(eeprom, EEPROM_FREQ_OFFSET);
2562
2563 /*
2564 * Read external LNA informations.
2565 */
2566 rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &eeprom);
2567
2568 if (rt2x00_get_field16(eeprom, EEPROM_NIC_EXTERNAL_LNA_A))
2569 __set_bit(CAPABILITY_EXTERNAL_LNA_A, &rt2x00dev->cap_flags);
2570 if (rt2x00_get_field16(eeprom, EEPROM_NIC_EXTERNAL_LNA_BG))
2571 __set_bit(CAPABILITY_EXTERNAL_LNA_BG, &rt2x00dev->cap_flags);
2572
2573 /*
2574 * When working with a RF2529 chip without double antenna,
2575 * the antenna settings should be gathered from the NIC
2576 * eeprom word.
2577 */
2578 if (rt2x00_rf(rt2x00dev, RF2529) &&
2579 !test_bit(CAPABILITY_DOUBLE_ANTENNA, &rt2x00dev->cap_flags)) {
2580 rt2x00dev->default_ant.rx =
2581 ANTENNA_A + rt2x00_get_field16(eeprom, EEPROM_NIC_RX_FIXED);
2582 rt2x00dev->default_ant.tx =
2583 ANTENNA_B - rt2x00_get_field16(eeprom, EEPROM_NIC_TX_FIXED);
2584
2585 if (rt2x00_get_field16(eeprom, EEPROM_NIC_TX_DIVERSITY))
2586 rt2x00dev->default_ant.tx = ANTENNA_SW_DIVERSITY;
2587 if (rt2x00_get_field16(eeprom, EEPROM_NIC_ENABLE_DIVERSITY))
2588 rt2x00dev->default_ant.rx = ANTENNA_SW_DIVERSITY;
2589 }
2590
2591 /*
2592 * Store led settings, for correct led behaviour.
2593 * If the eeprom value is invalid,
2594 * switch to default led mode.
2595 */
2596 #ifdef CONFIG_RT2X00_LIB_LEDS
2597 rt2x00_eeprom_read(rt2x00dev, EEPROM_LED, &eeprom);
2598 value = rt2x00_get_field16(eeprom, EEPROM_LED_LED_MODE);
2599
2600 rt61pci_init_led(rt2x00dev, &rt2x00dev->led_radio, LED_TYPE_RADIO);
2601 rt61pci_init_led(rt2x00dev, &rt2x00dev->led_assoc, LED_TYPE_ASSOC);
2602 if (value == LED_MODE_SIGNAL_STRENGTH)
2603 rt61pci_init_led(rt2x00dev, &rt2x00dev->led_qual,
2604 LED_TYPE_QUALITY);
2605
2606 rt2x00_set_field16(&rt2x00dev->led_mcu_reg, MCU_LEDCS_LED_MODE, value);
2607 rt2x00_set_field16(&rt2x00dev->led_mcu_reg, MCU_LEDCS_POLARITY_GPIO_0,
2608 rt2x00_get_field16(eeprom,
2609 EEPROM_LED_POLARITY_GPIO_0));
2610 rt2x00_set_field16(&rt2x00dev->led_mcu_reg, MCU_LEDCS_POLARITY_GPIO_1,
2611 rt2x00_get_field16(eeprom,
2612 EEPROM_LED_POLARITY_GPIO_1));
2613 rt2x00_set_field16(&rt2x00dev->led_mcu_reg, MCU_LEDCS_POLARITY_GPIO_2,
2614 rt2x00_get_field16(eeprom,
2615 EEPROM_LED_POLARITY_GPIO_2));
2616 rt2x00_set_field16(&rt2x00dev->led_mcu_reg, MCU_LEDCS_POLARITY_GPIO_3,
2617 rt2x00_get_field16(eeprom,
2618 EEPROM_LED_POLARITY_GPIO_3));
2619 rt2x00_set_field16(&rt2x00dev->led_mcu_reg, MCU_LEDCS_POLARITY_GPIO_4,
2620 rt2x00_get_field16(eeprom,
2621 EEPROM_LED_POLARITY_GPIO_4));
2622 rt2x00_set_field16(&rt2x00dev->led_mcu_reg, MCU_LEDCS_POLARITY_ACT,
2623 rt2x00_get_field16(eeprom, EEPROM_LED_POLARITY_ACT));
2624 rt2x00_set_field16(&rt2x00dev->led_mcu_reg, MCU_LEDCS_POLARITY_READY_BG,
2625 rt2x00_get_field16(eeprom,
2626 EEPROM_LED_POLARITY_RDY_G));
2627 rt2x00_set_field16(&rt2x00dev->led_mcu_reg, MCU_LEDCS_POLARITY_READY_A,
2628 rt2x00_get_field16(eeprom,
2629 EEPROM_LED_POLARITY_RDY_A));
2630 #endif /* CONFIG_RT2X00_LIB_LEDS */
2631
2632 return 0;
2633 }
2634
2635 /*
2636 * RF value list for RF5225 & RF5325
2637 * Supports: 2.4 GHz & 5.2 GHz, rf_sequence disabled
2638 */
2639 static const struct rf_channel rf_vals_noseq[] = {
2640 { 1, 0x00002ccc, 0x00004786, 0x00068455, 0x000ffa0b },
2641 { 2, 0x00002ccc, 0x00004786, 0x00068455, 0x000ffa1f },
2642 { 3, 0x00002ccc, 0x0000478a, 0x00068455, 0x000ffa0b },
2643 { 4, 0x00002ccc, 0x0000478a, 0x00068455, 0x000ffa1f },
2644 { 5, 0x00002ccc, 0x0000478e, 0x00068455, 0x000ffa0b },
2645 { 6, 0x00002ccc, 0x0000478e, 0x00068455, 0x000ffa1f },
2646 { 7, 0x00002ccc, 0x00004792, 0x00068455, 0x000ffa0b },
2647 { 8, 0x00002ccc, 0x00004792, 0x00068455, 0x000ffa1f },
2648 { 9, 0x00002ccc, 0x00004796, 0x00068455, 0x000ffa0b },
2649 { 10, 0x00002ccc, 0x00004796, 0x00068455, 0x000ffa1f },
2650 { 11, 0x00002ccc, 0x0000479a, 0x00068455, 0x000ffa0b },
2651 { 12, 0x00002ccc, 0x0000479a, 0x00068455, 0x000ffa1f },
2652 { 13, 0x00002ccc, 0x0000479e, 0x00068455, 0x000ffa0b },
2653 { 14, 0x00002ccc, 0x000047a2, 0x00068455, 0x000ffa13 },
2654
2655 /* 802.11 UNI / HyperLan 2 */
2656 { 36, 0x00002ccc, 0x0000499a, 0x0009be55, 0x000ffa23 },
2657 { 40, 0x00002ccc, 0x000049a2, 0x0009be55, 0x000ffa03 },
2658 { 44, 0x00002ccc, 0x000049a6, 0x0009be55, 0x000ffa0b },
2659 { 48, 0x00002ccc, 0x000049aa, 0x0009be55, 0x000ffa13 },
2660 { 52, 0x00002ccc, 0x000049ae, 0x0009ae55, 0x000ffa1b },
2661 { 56, 0x00002ccc, 0x000049b2, 0x0009ae55, 0x000ffa23 },
2662 { 60, 0x00002ccc, 0x000049ba, 0x0009ae55, 0x000ffa03 },
2663 { 64, 0x00002ccc, 0x000049be, 0x0009ae55, 0x000ffa0b },
2664
2665 /* 802.11 HyperLan 2 */
2666 { 100, 0x00002ccc, 0x00004a2a, 0x000bae55, 0x000ffa03 },
2667 { 104, 0x00002ccc, 0x00004a2e, 0x000bae55, 0x000ffa0b },
2668 { 108, 0x00002ccc, 0x00004a32, 0x000bae55, 0x000ffa13 },
2669 { 112, 0x00002ccc, 0x00004a36, 0x000bae55, 0x000ffa1b },
2670 { 116, 0x00002ccc, 0x00004a3a, 0x000bbe55, 0x000ffa23 },
2671 { 120, 0x00002ccc, 0x00004a82, 0x000bbe55, 0x000ffa03 },
2672 { 124, 0x00002ccc, 0x00004a86, 0x000bbe55, 0x000ffa0b },
2673 { 128, 0x00002ccc, 0x00004a8a, 0x000bbe55, 0x000ffa13 },
2674 { 132, 0x00002ccc, 0x00004a8e, 0x000bbe55, 0x000ffa1b },
2675 { 136, 0x00002ccc, 0x00004a92, 0x000bbe55, 0x000ffa23 },
2676
2677 /* 802.11 UNII */
2678 { 140, 0x00002ccc, 0x00004a9a, 0x000bbe55, 0x000ffa03 },
2679 { 149, 0x00002ccc, 0x00004aa2, 0x000bbe55, 0x000ffa1f },
2680 { 153, 0x00002ccc, 0x00004aa6, 0x000bbe55, 0x000ffa27 },
2681 { 157, 0x00002ccc, 0x00004aae, 0x000bbe55, 0x000ffa07 },
2682 { 161, 0x00002ccc, 0x00004ab2, 0x000bbe55, 0x000ffa0f },
2683 { 165, 0x00002ccc, 0x00004ab6, 0x000bbe55, 0x000ffa17 },
2684
2685 /* MMAC(Japan)J52 ch 34,38,42,46 */
2686 { 34, 0x00002ccc, 0x0000499a, 0x0009be55, 0x000ffa0b },
2687 { 38, 0x00002ccc, 0x0000499e, 0x0009be55, 0x000ffa13 },
2688 { 42, 0x00002ccc, 0x000049a2, 0x0009be55, 0x000ffa1b },
2689 { 46, 0x00002ccc, 0x000049a6, 0x0009be55, 0x000ffa23 },
2690 };
2691
2692 /*
2693 * RF value list for RF5225 & RF5325
2694 * Supports: 2.4 GHz & 5.2 GHz, rf_sequence enabled
2695 */
2696 static const struct rf_channel rf_vals_seq[] = {
2697 { 1, 0x00002ccc, 0x00004786, 0x00068455, 0x000ffa0b },
2698 { 2, 0x00002ccc, 0x00004786, 0x00068455, 0x000ffa1f },
2699 { 3, 0x00002ccc, 0x0000478a, 0x00068455, 0x000ffa0b },
2700 { 4, 0x00002ccc, 0x0000478a, 0x00068455, 0x000ffa1f },
2701 { 5, 0x00002ccc, 0x0000478e, 0x00068455, 0x000ffa0b },
2702 { 6, 0x00002ccc, 0x0000478e, 0x00068455, 0x000ffa1f },
2703 { 7, 0x00002ccc, 0x00004792, 0x00068455, 0x000ffa0b },
2704 { 8, 0x00002ccc, 0x00004792, 0x00068455, 0x000ffa1f },
2705 { 9, 0x00002ccc, 0x00004796, 0x00068455, 0x000ffa0b },
2706 { 10, 0x00002ccc, 0x00004796, 0x00068455, 0x000ffa1f },
2707 { 11, 0x00002ccc, 0x0000479a, 0x00068455, 0x000ffa0b },
2708 { 12, 0x00002ccc, 0x0000479a, 0x00068455, 0x000ffa1f },
2709 { 13, 0x00002ccc, 0x0000479e, 0x00068455, 0x000ffa0b },
2710 { 14, 0x00002ccc, 0x000047a2, 0x00068455, 0x000ffa13 },
2711
2712 /* 802.11 UNI / HyperLan 2 */
2713 { 36, 0x00002cd4, 0x0004481a, 0x00098455, 0x000c0a03 },
2714 { 40, 0x00002cd0, 0x00044682, 0x00098455, 0x000c0a03 },
2715 { 44, 0x00002cd0, 0x00044686, 0x00098455, 0x000c0a1b },
2716 { 48, 0x00002cd0, 0x0004468e, 0x00098655, 0x000c0a0b },
2717 { 52, 0x00002cd0, 0x00044692, 0x00098855, 0x000c0a23 },
2718 { 56, 0x00002cd0, 0x0004469a, 0x00098c55, 0x000c0a13 },
2719 { 60, 0x00002cd0, 0x000446a2, 0x00098e55, 0x000c0a03 },
2720 { 64, 0x00002cd0, 0x000446a6, 0x00099255, 0x000c0a1b },
2721
2722 /* 802.11 HyperLan 2 */
2723 { 100, 0x00002cd4, 0x0004489a, 0x000b9855, 0x000c0a03 },
2724 { 104, 0x00002cd4, 0x000448a2, 0x000b9855, 0x000c0a03 },
2725 { 108, 0x00002cd4, 0x000448aa, 0x000b9855, 0x000c0a03 },
2726 { 112, 0x00002cd4, 0x000448b2, 0x000b9a55, 0x000c0a03 },
2727 { 116, 0x00002cd4, 0x000448ba, 0x000b9a55, 0x000c0a03 },
2728 { 120, 0x00002cd0, 0x00044702, 0x000b9a55, 0x000c0a03 },
2729 { 124, 0x00002cd0, 0x00044706, 0x000b9a55, 0x000c0a1b },
2730 { 128, 0x00002cd0, 0x0004470e, 0x000b9c55, 0x000c0a0b },
2731 { 132, 0x00002cd0, 0x00044712, 0x000b9c55, 0x000c0a23 },
2732 { 136, 0x00002cd0, 0x0004471a, 0x000b9e55, 0x000c0a13 },
2733
2734 /* 802.11 UNII */
2735 { 140, 0x00002cd0, 0x00044722, 0x000b9e55, 0x000c0a03 },
2736 { 149, 0x00002cd0, 0x0004472e, 0x000ba255, 0x000c0a1b },
2737 { 153, 0x00002cd0, 0x00044736, 0x000ba255, 0x000c0a0b },
2738 { 157, 0x00002cd4, 0x0004490a, 0x000ba255, 0x000c0a17 },
2739 { 161, 0x00002cd4, 0x00044912, 0x000ba255, 0x000c0a17 },
2740 { 165, 0x00002cd4, 0x0004491a, 0x000ba255, 0x000c0a17 },
2741
2742 /* MMAC(Japan)J52 ch 34,38,42,46 */
2743 { 34, 0x00002ccc, 0x0000499a, 0x0009be55, 0x000c0a0b },
2744 { 38, 0x00002ccc, 0x0000499e, 0x0009be55, 0x000c0a13 },
2745 { 42, 0x00002ccc, 0x000049a2, 0x0009be55, 0x000c0a1b },
2746 { 46, 0x00002ccc, 0x000049a6, 0x0009be55, 0x000c0a23 },
2747 };
2748
rt61pci_probe_hw_mode(struct rt2x00_dev * rt2x00dev)2749 static int rt61pci_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
2750 {
2751 struct hw_mode_spec *spec = &rt2x00dev->spec;
2752 struct channel_info *info;
2753 char *tx_power;
2754 unsigned int i;
2755
2756 /*
2757 * Disable powersaving as default.
2758 */
2759 rt2x00dev->hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
2760
2761 /*
2762 * Initialize all hw fields.
2763 */
2764 rt2x00dev->hw->flags =
2765 IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
2766 IEEE80211_HW_SIGNAL_DBM |
2767 IEEE80211_HW_SUPPORTS_PS |
2768 IEEE80211_HW_PS_NULLFUNC_STACK;
2769
2770 SET_IEEE80211_DEV(rt2x00dev->hw, rt2x00dev->dev);
2771 SET_IEEE80211_PERM_ADDR(rt2x00dev->hw,
2772 rt2x00_eeprom_addr(rt2x00dev,
2773 EEPROM_MAC_ADDR_0));
2774
2775 /*
2776 * As rt61 has a global fallback table we cannot specify
2777 * more then one tx rate per frame but since the hw will
2778 * try several rates (based on the fallback table) we should
2779 * initialize max_report_rates to the maximum number of rates
2780 * we are going to try. Otherwise mac80211 will truncate our
2781 * reported tx rates and the rc algortihm will end up with
2782 * incorrect data.
2783 */
2784 rt2x00dev->hw->max_rates = 1;
2785 rt2x00dev->hw->max_report_rates = 7;
2786 rt2x00dev->hw->max_rate_tries = 1;
2787
2788 /*
2789 * Initialize hw_mode information.
2790 */
2791 spec->supported_bands = SUPPORT_BAND_2GHZ;
2792 spec->supported_rates = SUPPORT_RATE_CCK | SUPPORT_RATE_OFDM;
2793
2794 if (!test_bit(CAPABILITY_RF_SEQUENCE, &rt2x00dev->cap_flags)) {
2795 spec->num_channels = 14;
2796 spec->channels = rf_vals_noseq;
2797 } else {
2798 spec->num_channels = 14;
2799 spec->channels = rf_vals_seq;
2800 }
2801
2802 if (rt2x00_rf(rt2x00dev, RF5225) || rt2x00_rf(rt2x00dev, RF5325)) {
2803 spec->supported_bands |= SUPPORT_BAND_5GHZ;
2804 spec->num_channels = ARRAY_SIZE(rf_vals_seq);
2805 }
2806
2807 /*
2808 * Create channel information array
2809 */
2810 info = kcalloc(spec->num_channels, sizeof(*info), GFP_KERNEL);
2811 if (!info)
2812 return -ENOMEM;
2813
2814 spec->channels_info = info;
2815
2816 tx_power = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_G_START);
2817 for (i = 0; i < 14; i++) {
2818 info[i].max_power = MAX_TXPOWER;
2819 info[i].default_power1 = TXPOWER_FROM_DEV(tx_power[i]);
2820 }
2821
2822 if (spec->num_channels > 14) {
2823 tx_power = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_A_START);
2824 for (i = 14; i < spec->num_channels; i++) {
2825 info[i].max_power = MAX_TXPOWER;
2826 info[i].default_power1 = TXPOWER_FROM_DEV(tx_power[i]);
2827 }
2828 }
2829
2830 return 0;
2831 }
2832
rt61pci_probe_hw(struct rt2x00_dev * rt2x00dev)2833 static int rt61pci_probe_hw(struct rt2x00_dev *rt2x00dev)
2834 {
2835 int retval;
2836
2837 /*
2838 * Disable power saving.
2839 */
2840 rt2x00pci_register_write(rt2x00dev, SOFT_RESET_CSR, 0x00000007);
2841
2842 /*
2843 * Allocate eeprom data.
2844 */
2845 retval = rt61pci_validate_eeprom(rt2x00dev);
2846 if (retval)
2847 return retval;
2848
2849 retval = rt61pci_init_eeprom(rt2x00dev);
2850 if (retval)
2851 return retval;
2852
2853 /*
2854 * Initialize hw specifications.
2855 */
2856 retval = rt61pci_probe_hw_mode(rt2x00dev);
2857 if (retval)
2858 return retval;
2859
2860 /*
2861 * This device has multiple filters for control frames,
2862 * but has no a separate filter for PS Poll frames.
2863 */
2864 __set_bit(CAPABILITY_CONTROL_FILTERS, &rt2x00dev->cap_flags);
2865
2866 /*
2867 * This device requires firmware and DMA mapped skbs.
2868 */
2869 __set_bit(REQUIRE_FIRMWARE, &rt2x00dev->cap_flags);
2870 __set_bit(REQUIRE_DMA, &rt2x00dev->cap_flags);
2871 if (!modparam_nohwcrypt)
2872 __set_bit(CAPABILITY_HW_CRYPTO, &rt2x00dev->cap_flags);
2873 __set_bit(CAPABILITY_LINK_TUNING, &rt2x00dev->cap_flags);
2874
2875 /*
2876 * Set the rssi offset.
2877 */
2878 rt2x00dev->rssi_offset = DEFAULT_RSSI_OFFSET;
2879
2880 return 0;
2881 }
2882
2883 /*
2884 * IEEE80211 stack callback functions.
2885 */
rt61pci_conf_tx(struct ieee80211_hw * hw,struct ieee80211_vif * vif,u16 queue_idx,const struct ieee80211_tx_queue_params * params)2886 static int rt61pci_conf_tx(struct ieee80211_hw *hw,
2887 struct ieee80211_vif *vif, u16 queue_idx,
2888 const struct ieee80211_tx_queue_params *params)
2889 {
2890 struct rt2x00_dev *rt2x00dev = hw->priv;
2891 struct data_queue *queue;
2892 struct rt2x00_field32 field;
2893 int retval;
2894 u32 reg;
2895 u32 offset;
2896
2897 /*
2898 * First pass the configuration through rt2x00lib, that will
2899 * update the queue settings and validate the input. After that
2900 * we are free to update the registers based on the value
2901 * in the queue parameter.
2902 */
2903 retval = rt2x00mac_conf_tx(hw, vif, queue_idx, params);
2904 if (retval)
2905 return retval;
2906
2907 /*
2908 * We only need to perform additional register initialization
2909 * for WMM queues.
2910 */
2911 if (queue_idx >= 4)
2912 return 0;
2913
2914 queue = rt2x00queue_get_tx_queue(rt2x00dev, queue_idx);
2915
2916 /* Update WMM TXOP register */
2917 offset = AC_TXOP_CSR0 + (sizeof(u32) * (!!(queue_idx & 2)));
2918 field.bit_offset = (queue_idx & 1) * 16;
2919 field.bit_mask = 0xffff << field.bit_offset;
2920
2921 rt2x00pci_register_read(rt2x00dev, offset, ®);
2922 rt2x00_set_field32(®, field, queue->txop);
2923 rt2x00pci_register_write(rt2x00dev, offset, reg);
2924
2925 /* Update WMM registers */
2926 field.bit_offset = queue_idx * 4;
2927 field.bit_mask = 0xf << field.bit_offset;
2928
2929 rt2x00pci_register_read(rt2x00dev, AIFSN_CSR, ®);
2930 rt2x00_set_field32(®, field, queue->aifs);
2931 rt2x00pci_register_write(rt2x00dev, AIFSN_CSR, reg);
2932
2933 rt2x00pci_register_read(rt2x00dev, CWMIN_CSR, ®);
2934 rt2x00_set_field32(®, field, queue->cw_min);
2935 rt2x00pci_register_write(rt2x00dev, CWMIN_CSR, reg);
2936
2937 rt2x00pci_register_read(rt2x00dev, CWMAX_CSR, ®);
2938 rt2x00_set_field32(®, field, queue->cw_max);
2939 rt2x00pci_register_write(rt2x00dev, CWMAX_CSR, reg);
2940
2941 return 0;
2942 }
2943
rt61pci_get_tsf(struct ieee80211_hw * hw,struct ieee80211_vif * vif)2944 static u64 rt61pci_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
2945 {
2946 struct rt2x00_dev *rt2x00dev = hw->priv;
2947 u64 tsf;
2948 u32 reg;
2949
2950 rt2x00pci_register_read(rt2x00dev, TXRX_CSR13, ®);
2951 tsf = (u64) rt2x00_get_field32(reg, TXRX_CSR13_HIGH_TSFTIMER) << 32;
2952 rt2x00pci_register_read(rt2x00dev, TXRX_CSR12, ®);
2953 tsf |= rt2x00_get_field32(reg, TXRX_CSR12_LOW_TSFTIMER);
2954
2955 return tsf;
2956 }
2957
2958 static const struct ieee80211_ops rt61pci_mac80211_ops = {
2959 .tx = rt2x00mac_tx,
2960 .start = rt2x00mac_start,
2961 .stop = rt2x00mac_stop,
2962 .add_interface = rt2x00mac_add_interface,
2963 .remove_interface = rt2x00mac_remove_interface,
2964 .config = rt2x00mac_config,
2965 .configure_filter = rt2x00mac_configure_filter,
2966 .set_key = rt2x00mac_set_key,
2967 .sw_scan_start = rt2x00mac_sw_scan_start,
2968 .sw_scan_complete = rt2x00mac_sw_scan_complete,
2969 .get_stats = rt2x00mac_get_stats,
2970 .bss_info_changed = rt2x00mac_bss_info_changed,
2971 .conf_tx = rt61pci_conf_tx,
2972 .get_tsf = rt61pci_get_tsf,
2973 .rfkill_poll = rt2x00mac_rfkill_poll,
2974 .flush = rt2x00mac_flush,
2975 .set_antenna = rt2x00mac_set_antenna,
2976 .get_antenna = rt2x00mac_get_antenna,
2977 .get_ringparam = rt2x00mac_get_ringparam,
2978 .tx_frames_pending = rt2x00mac_tx_frames_pending,
2979 };
2980
2981 static const struct rt2x00lib_ops rt61pci_rt2x00_ops = {
2982 .irq_handler = rt61pci_interrupt,
2983 .txstatus_tasklet = rt61pci_txstatus_tasklet,
2984 .tbtt_tasklet = rt61pci_tbtt_tasklet,
2985 .rxdone_tasklet = rt61pci_rxdone_tasklet,
2986 .autowake_tasklet = rt61pci_autowake_tasklet,
2987 .probe_hw = rt61pci_probe_hw,
2988 .get_firmware_name = rt61pci_get_firmware_name,
2989 .check_firmware = rt61pci_check_firmware,
2990 .load_firmware = rt61pci_load_firmware,
2991 .initialize = rt2x00pci_initialize,
2992 .uninitialize = rt2x00pci_uninitialize,
2993 .get_entry_state = rt61pci_get_entry_state,
2994 .clear_entry = rt61pci_clear_entry,
2995 .set_device_state = rt61pci_set_device_state,
2996 .rfkill_poll = rt61pci_rfkill_poll,
2997 .link_stats = rt61pci_link_stats,
2998 .reset_tuner = rt61pci_reset_tuner,
2999 .link_tuner = rt61pci_link_tuner,
3000 .start_queue = rt61pci_start_queue,
3001 .kick_queue = rt61pci_kick_queue,
3002 .stop_queue = rt61pci_stop_queue,
3003 .flush_queue = rt2x00pci_flush_queue,
3004 .write_tx_desc = rt61pci_write_tx_desc,
3005 .write_beacon = rt61pci_write_beacon,
3006 .clear_beacon = rt61pci_clear_beacon,
3007 .fill_rxdone = rt61pci_fill_rxdone,
3008 .config_shared_key = rt61pci_config_shared_key,
3009 .config_pairwise_key = rt61pci_config_pairwise_key,
3010 .config_filter = rt61pci_config_filter,
3011 .config_intf = rt61pci_config_intf,
3012 .config_erp = rt61pci_config_erp,
3013 .config_ant = rt61pci_config_ant,
3014 .config = rt61pci_config,
3015 };
3016
3017 static const struct data_queue_desc rt61pci_queue_rx = {
3018 .entry_num = 32,
3019 .data_size = DATA_FRAME_SIZE,
3020 .desc_size = RXD_DESC_SIZE,
3021 .priv_size = sizeof(struct queue_entry_priv_pci),
3022 };
3023
3024 static const struct data_queue_desc rt61pci_queue_tx = {
3025 .entry_num = 32,
3026 .data_size = DATA_FRAME_SIZE,
3027 .desc_size = TXD_DESC_SIZE,
3028 .priv_size = sizeof(struct queue_entry_priv_pci),
3029 };
3030
3031 static const struct data_queue_desc rt61pci_queue_bcn = {
3032 .entry_num = 4,
3033 .data_size = 0, /* No DMA required for beacons */
3034 .desc_size = TXINFO_SIZE,
3035 .priv_size = sizeof(struct queue_entry_priv_pci),
3036 };
3037
3038 static const struct rt2x00_ops rt61pci_ops = {
3039 .name = KBUILD_MODNAME,
3040 .max_sta_intf = 1,
3041 .max_ap_intf = 4,
3042 .eeprom_size = EEPROM_SIZE,
3043 .rf_size = RF_SIZE,
3044 .tx_queues = NUM_TX_QUEUES,
3045 .extra_tx_headroom = 0,
3046 .rx = &rt61pci_queue_rx,
3047 .tx = &rt61pci_queue_tx,
3048 .bcn = &rt61pci_queue_bcn,
3049 .lib = &rt61pci_rt2x00_ops,
3050 .hw = &rt61pci_mac80211_ops,
3051 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
3052 .debugfs = &rt61pci_rt2x00debug,
3053 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
3054 };
3055
3056 /*
3057 * RT61pci module information.
3058 */
3059 static DEFINE_PCI_DEVICE_TABLE(rt61pci_device_table) = {
3060 /* RT2561s */
3061 { PCI_DEVICE(0x1814, 0x0301) },
3062 /* RT2561 v2 */
3063 { PCI_DEVICE(0x1814, 0x0302) },
3064 /* RT2661 */
3065 { PCI_DEVICE(0x1814, 0x0401) },
3066 { 0, }
3067 };
3068
3069 MODULE_AUTHOR(DRV_PROJECT);
3070 MODULE_VERSION(DRV_VERSION);
3071 MODULE_DESCRIPTION("Ralink RT61 PCI & PCMCIA Wireless LAN driver.");
3072 MODULE_SUPPORTED_DEVICE("Ralink RT2561, RT2561s & RT2661 "
3073 "PCI & PCMCIA chipset based cards");
3074 MODULE_DEVICE_TABLE(pci, rt61pci_device_table);
3075 MODULE_FIRMWARE(FIRMWARE_RT2561);
3076 MODULE_FIRMWARE(FIRMWARE_RT2561s);
3077 MODULE_FIRMWARE(FIRMWARE_RT2661);
3078 MODULE_LICENSE("GPL");
3079
rt61pci_probe(struct pci_dev * pci_dev,const struct pci_device_id * id)3080 static int rt61pci_probe(struct pci_dev *pci_dev,
3081 const struct pci_device_id *id)
3082 {
3083 return rt2x00pci_probe(pci_dev, &rt61pci_ops);
3084 }
3085
3086 static struct pci_driver rt61pci_driver = {
3087 .name = KBUILD_MODNAME,
3088 .id_table = rt61pci_device_table,
3089 .probe = rt61pci_probe,
3090 .remove = __devexit_p(rt2x00pci_remove),
3091 .suspend = rt2x00pci_suspend,
3092 .resume = rt2x00pci_resume,
3093 };
3094
rt61pci_init(void)3095 static int __init rt61pci_init(void)
3096 {
3097 return pci_register_driver(&rt61pci_driver);
3098 }
3099
rt61pci_exit(void)3100 static void __exit rt61pci_exit(void)
3101 {
3102 pci_unregister_driver(&rt61pci_driver);
3103 }
3104
3105 module_init(rt61pci_init);
3106 module_exit(rt61pci_exit);
3107