1 /*
2 * Copyright (c) 2004-2007 Reyk Floeter <reyk@openbsd.org>
3 * Copyright (c) 2006-2007 Nick Kossifidis <mickflemm@gmail.com>
4 *
5 * Permission to use, copy, modify, and distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
8 *
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 */
17
18 #ifndef _ATH5K_H
19 #define _ATH5K_H
20
21 /* TODO: Clean up channel debugging (doesn't work anyway) and start
22 * working on reg. control code using all available eeprom information
23 * (rev. engineering needed) */
24 #define CHAN_DEBUG 0
25
26 #include <linux/io.h>
27 #include <linux/interrupt.h>
28 #include <linux/types.h>
29 #include <linux/average.h>
30 #include <linux/leds.h>
31 #include <net/mac80211.h>
32 #include <net/cfg80211.h>
33
34 /* RX/TX descriptor hw structs
35 * TODO: Driver part should only see sw structs */
36 #include "desc.h"
37
38 /* EEPROM structs/offsets
39 * TODO: Make a more generic struct (eg. add more stuff to ath5k_capabilities)
40 * and clean up common bits, then introduce set/get functions in eeprom.c */
41 #include "eeprom.h"
42 #include "debug.h"
43 #include "../ath.h"
44 #include "ani.h"
45
46 /* PCI IDs */
47 #define PCI_DEVICE_ID_ATHEROS_AR5210 0x0007 /* AR5210 */
48 #define PCI_DEVICE_ID_ATHEROS_AR5311 0x0011 /* AR5311 */
49 #define PCI_DEVICE_ID_ATHEROS_AR5211 0x0012 /* AR5211 */
50 #define PCI_DEVICE_ID_ATHEROS_AR5212 0x0013 /* AR5212 */
51 #define PCI_DEVICE_ID_3COM_3CRDAG675 0x0013 /* 3CRDAG675 (Atheros AR5212) */
52 #define PCI_DEVICE_ID_3COM_2_3CRPAG175 0x0013 /* 3CRPAG175 (Atheros AR5212) */
53 #define PCI_DEVICE_ID_ATHEROS_AR5210_AP 0x0207 /* AR5210 (Early) */
54 #define PCI_DEVICE_ID_ATHEROS_AR5212_IBM 0x1014 /* AR5212 (IBM MiniPCI) */
55 #define PCI_DEVICE_ID_ATHEROS_AR5210_DEFAULT 0x1107 /* AR5210 (no eeprom) */
56 #define PCI_DEVICE_ID_ATHEROS_AR5212_DEFAULT 0x1113 /* AR5212 (no eeprom) */
57 #define PCI_DEVICE_ID_ATHEROS_AR5211_DEFAULT 0x1112 /* AR5211 (no eeprom) */
58 #define PCI_DEVICE_ID_ATHEROS_AR5212_FPGA 0xf013 /* AR5212 (emulation board) */
59 #define PCI_DEVICE_ID_ATHEROS_AR5211_LEGACY 0xff12 /* AR5211 (emulation board) */
60 #define PCI_DEVICE_ID_ATHEROS_AR5211_FPGA11B 0xf11b /* AR5211 (emulation board) */
61 #define PCI_DEVICE_ID_ATHEROS_AR5312_REV2 0x0052 /* AR5312 WMAC (AP31) */
62 #define PCI_DEVICE_ID_ATHEROS_AR5312_REV7 0x0057 /* AR5312 WMAC (AP30-040) */
63 #define PCI_DEVICE_ID_ATHEROS_AR5312_REV8 0x0058 /* AR5312 WMAC (AP43-030) */
64 #define PCI_DEVICE_ID_ATHEROS_AR5212_0014 0x0014 /* AR5212 compatible */
65 #define PCI_DEVICE_ID_ATHEROS_AR5212_0015 0x0015 /* AR5212 compatible */
66 #define PCI_DEVICE_ID_ATHEROS_AR5212_0016 0x0016 /* AR5212 compatible */
67 #define PCI_DEVICE_ID_ATHEROS_AR5212_0017 0x0017 /* AR5212 compatible */
68 #define PCI_DEVICE_ID_ATHEROS_AR5212_0018 0x0018 /* AR5212 compatible */
69 #define PCI_DEVICE_ID_ATHEROS_AR5212_0019 0x0019 /* AR5212 compatible */
70 #define PCI_DEVICE_ID_ATHEROS_AR2413 0x001a /* AR2413 (Griffin-lite) */
71 #define PCI_DEVICE_ID_ATHEROS_AR5413 0x001b /* AR5413 (Eagle) */
72 #define PCI_DEVICE_ID_ATHEROS_AR5424 0x001c /* AR5424 (Condor PCI-E) */
73 #define PCI_DEVICE_ID_ATHEROS_AR5416 0x0023 /* AR5416 */
74 #define PCI_DEVICE_ID_ATHEROS_AR5418 0x0024 /* AR5418 */
75
76 /****************************\
77 GENERIC DRIVER DEFINITIONS
78 \****************************/
79
80 #define ATH5K_PRINTF(fmt, ...) \
81 pr_warn("%s: " fmt, __func__, ##__VA_ARGS__)
82
83 void __printf(3, 4)
84 _ath5k_printk(const struct ath5k_hw *ah, const char *level,
85 const char *fmt, ...);
86
87 #define ATH5K_PRINTK(_sc, _level, _fmt, ...) \
88 _ath5k_printk(_sc, _level, _fmt, ##__VA_ARGS__)
89
90 #define ATH5K_PRINTK_LIMIT(_sc, _level, _fmt, ...) \
91 do { \
92 if (net_ratelimit()) \
93 ATH5K_PRINTK(_sc, _level, _fmt, ##__VA_ARGS__); \
94 } while (0)
95
96 #define ATH5K_INFO(_sc, _fmt, ...) \
97 ATH5K_PRINTK(_sc, KERN_INFO, _fmt, ##__VA_ARGS__)
98
99 #define ATH5K_WARN(_sc, _fmt, ...) \
100 ATH5K_PRINTK_LIMIT(_sc, KERN_WARNING, _fmt, ##__VA_ARGS__)
101
102 #define ATH5K_ERR(_sc, _fmt, ...) \
103 ATH5K_PRINTK_LIMIT(_sc, KERN_ERR, _fmt, ##__VA_ARGS__)
104
105 /*
106 * AR5K REGISTER ACCESS
107 */
108
109 /* Some macros to read/write fields */
110
111 /* First shift, then mask */
112 #define AR5K_REG_SM(_val, _flags) \
113 (((_val) << _flags##_S) & (_flags))
114
115 /* First mask, then shift */
116 #define AR5K_REG_MS(_val, _flags) \
117 (((_val) & (_flags)) >> _flags##_S)
118
119 /* Some registers can hold multiple values of interest. For this
120 * reason when we want to write to these registers we must first
121 * retrieve the values which we do not want to clear (lets call this
122 * old_data) and then set the register with this and our new_value:
123 * ( old_data | new_value) */
124 #define AR5K_REG_WRITE_BITS(ah, _reg, _flags, _val) \
125 ath5k_hw_reg_write(ah, (ath5k_hw_reg_read(ah, _reg) & ~(_flags)) | \
126 (((_val) << _flags##_S) & (_flags)), _reg)
127
128 #define AR5K_REG_MASKED_BITS(ah, _reg, _flags, _mask) \
129 ath5k_hw_reg_write(ah, (ath5k_hw_reg_read(ah, _reg) & \
130 (_mask)) | (_flags), _reg)
131
132 #define AR5K_REG_ENABLE_BITS(ah, _reg, _flags) \
133 ath5k_hw_reg_write(ah, ath5k_hw_reg_read(ah, _reg) | (_flags), _reg)
134
135 #define AR5K_REG_DISABLE_BITS(ah, _reg, _flags) \
136 ath5k_hw_reg_write(ah, ath5k_hw_reg_read(ah, _reg) & ~(_flags), _reg)
137
138 /* Access QCU registers per queue */
139 #define AR5K_REG_READ_Q(ah, _reg, _queue) \
140 (ath5k_hw_reg_read(ah, _reg) & (1 << _queue)) \
141
142 #define AR5K_REG_WRITE_Q(ah, _reg, _queue) \
143 ath5k_hw_reg_write(ah, (1 << _queue), _reg)
144
145 #define AR5K_Q_ENABLE_BITS(_reg, _queue) do { \
146 _reg |= 1 << _queue; \
147 } while (0)
148
149 #define AR5K_Q_DISABLE_BITS(_reg, _queue) do { \
150 _reg &= ~(1 << _queue); \
151 } while (0)
152
153 /* Used while writing initvals */
154 #define AR5K_REG_WAIT(_i) do { \
155 if (_i % 64) \
156 udelay(1); \
157 } while (0)
158
159 /*
160 * Some tunable values (these should be changeable by the user)
161 * TODO: Make use of them and add more options OR use debug/configfs
162 */
163 #define AR5K_TUNE_DMA_BEACON_RESP 2
164 #define AR5K_TUNE_SW_BEACON_RESP 10
165 #define AR5K_TUNE_ADDITIONAL_SWBA_BACKOFF 0
166 #define AR5K_TUNE_MIN_TX_FIFO_THRES 1
167 #define AR5K_TUNE_MAX_TX_FIFO_THRES ((IEEE80211_MAX_FRAME_LEN / 64) + 1)
168 #define AR5K_TUNE_REGISTER_TIMEOUT 20000
169 /* Register for RSSI threshold has a mask of 0xff, so 255 seems to
170 * be the max value. */
171 #define AR5K_TUNE_RSSI_THRES 129
172 /* This must be set when setting the RSSI threshold otherwise it can
173 * prevent a reset. If AR5K_RSSI_THR is read after writing to it
174 * the BMISS_THRES will be seen as 0, seems hardware doesn't keep
175 * track of it. Max value depends on hardware. For AR5210 this is just 7.
176 * For AR5211+ this seems to be up to 255. */
177 #define AR5K_TUNE_BMISS_THRES 7
178 #define AR5K_TUNE_REGISTER_DWELL_TIME 20000
179 #define AR5K_TUNE_BEACON_INTERVAL 100
180 #define AR5K_TUNE_AIFS 2
181 #define AR5K_TUNE_AIFS_11B 2
182 #define AR5K_TUNE_AIFS_XR 0
183 #define AR5K_TUNE_CWMIN 15
184 #define AR5K_TUNE_CWMIN_11B 31
185 #define AR5K_TUNE_CWMIN_XR 3
186 #define AR5K_TUNE_CWMAX 1023
187 #define AR5K_TUNE_CWMAX_11B 1023
188 #define AR5K_TUNE_CWMAX_XR 7
189 #define AR5K_TUNE_NOISE_FLOOR -72
190 #define AR5K_TUNE_CCA_MAX_GOOD_VALUE -95
191 #define AR5K_TUNE_MAX_TXPOWER 63
192 #define AR5K_TUNE_DEFAULT_TXPOWER 25
193 #define AR5K_TUNE_TPC_TXPOWER false
194 #define ATH5K_TUNE_CALIBRATION_INTERVAL_FULL 60000 /* 60 sec */
195 #define ATH5K_TUNE_CALIBRATION_INTERVAL_SHORT 10000 /* 10 sec */
196 #define ATH5K_TUNE_CALIBRATION_INTERVAL_ANI 1000 /* 1 sec */
197 #define ATH5K_TX_COMPLETE_POLL_INT 3000 /* 3 sec */
198
199 #define AR5K_INIT_CARR_SENSE_EN 1
200
201 /*Swap RX/TX Descriptor for big endian archs*/
202 #if defined(__BIG_ENDIAN)
203 #define AR5K_INIT_CFG ( \
204 AR5K_CFG_SWTD | AR5K_CFG_SWRD \
205 )
206 #else
207 #define AR5K_INIT_CFG 0x00000000
208 #endif
209
210 /* Initial values */
211 #define AR5K_INIT_CYCRSSI_THR1 2
212
213 /* Tx retry limit defaults from standard */
214 #define AR5K_INIT_RETRY_SHORT 7
215 #define AR5K_INIT_RETRY_LONG 4
216
217 /* Slot time */
218 #define AR5K_INIT_SLOT_TIME_TURBO 6
219 #define AR5K_INIT_SLOT_TIME_DEFAULT 9
220 #define AR5K_INIT_SLOT_TIME_HALF_RATE 13
221 #define AR5K_INIT_SLOT_TIME_QUARTER_RATE 21
222 #define AR5K_INIT_SLOT_TIME_B 20
223 #define AR5K_SLOT_TIME_MAX 0xffff
224
225 /* SIFS */
226 #define AR5K_INIT_SIFS_TURBO 6
227 #define AR5K_INIT_SIFS_DEFAULT_BG 10
228 #define AR5K_INIT_SIFS_DEFAULT_A 16
229 #define AR5K_INIT_SIFS_HALF_RATE 32
230 #define AR5K_INIT_SIFS_QUARTER_RATE 64
231
232 /* Used to calculate tx time for non 5/10/40MHz
233 * operation */
234 /* It's preamble time + signal time (16 + 4) */
235 #define AR5K_INIT_OFDM_PREAMPLE_TIME 20
236 /* Preamble time for 40MHz (turbo) operation (min ?) */
237 #define AR5K_INIT_OFDM_PREAMBLE_TIME_MIN 14
238 #define AR5K_INIT_OFDM_SYMBOL_TIME 4
239 #define AR5K_INIT_OFDM_PLCP_BITS 22
240
241 /* Rx latency for 5 and 10MHz operation (max ?) */
242 #define AR5K_INIT_RX_LAT_MAX 63
243 /* Tx latencies from initvals (5212 only but no problem
244 * because we only tweak them on 5212) */
245 #define AR5K_INIT_TX_LAT_A 54
246 #define AR5K_INIT_TX_LAT_BG 384
247 /* Tx latency for 40MHz (turbo) operation (min ?) */
248 #define AR5K_INIT_TX_LAT_MIN 32
249 /* Default Tx/Rx latencies (same for 5211)*/
250 #define AR5K_INIT_TX_LATENCY_5210 54
251 #define AR5K_INIT_RX_LATENCY_5210 29
252
253 /* Tx frame to Tx data start delay */
254 #define AR5K_INIT_TXF2TXD_START_DEFAULT 14
255 #define AR5K_INIT_TXF2TXD_START_DELAY_10MHZ 12
256 #define AR5K_INIT_TXF2TXD_START_DELAY_5MHZ 13
257
258 /* We need to increase PHY switch and agc settling time
259 * on turbo mode */
260 #define AR5K_SWITCH_SETTLING 5760
261 #define AR5K_SWITCH_SETTLING_TURBO 7168
262
263 #define AR5K_AGC_SETTLING 28
264 /* 38 on 5210 but shouldn't matter */
265 #define AR5K_AGC_SETTLING_TURBO 37
266
267
268
269 /*****************************\
270 * GENERIC CHIPSET DEFINITIONS *
271 \*****************************/
272
273 /**
274 * enum ath5k_version - MAC Chips
275 * @AR5K_AR5210: AR5210 (Crete)
276 * @AR5K_AR5211: AR5211 (Oahu/Maui)
277 * @AR5K_AR5212: AR5212 (Venice) and newer
278 */
279 enum ath5k_version {
280 AR5K_AR5210 = 0,
281 AR5K_AR5211 = 1,
282 AR5K_AR5212 = 2,
283 };
284
285 /**
286 * enum ath5k_radio - PHY Chips
287 * @AR5K_RF5110: RF5110 (Fez)
288 * @AR5K_RF5111: RF5111 (Sombrero)
289 * @AR5K_RF5112: RF2112/5112(A) (Derby/Derby2)
290 * @AR5K_RF2413: RF2413/2414 (Griffin/Griffin-Lite)
291 * @AR5K_RF5413: RF5413/5414/5424 (Eagle/Condor)
292 * @AR5K_RF2316: RF2315/2316 (Cobra SoC)
293 * @AR5K_RF2317: RF2317 (Spider SoC)
294 * @AR5K_RF2425: RF2425/2417 (Swan/Nalla)
295 */
296 enum ath5k_radio {
297 AR5K_RF5110 = 0,
298 AR5K_RF5111 = 1,
299 AR5K_RF5112 = 2,
300 AR5K_RF2413 = 3,
301 AR5K_RF5413 = 4,
302 AR5K_RF2316 = 5,
303 AR5K_RF2317 = 6,
304 AR5K_RF2425 = 7,
305 };
306
307 /*
308 * Common silicon revision/version values
309 */
310
311 #define AR5K_SREV_UNKNOWN 0xffff
312
313 #define AR5K_SREV_AR5210 0x00 /* Crete */
314 #define AR5K_SREV_AR5311 0x10 /* Maui 1 */
315 #define AR5K_SREV_AR5311A 0x20 /* Maui 2 */
316 #define AR5K_SREV_AR5311B 0x30 /* Spirit */
317 #define AR5K_SREV_AR5211 0x40 /* Oahu */
318 #define AR5K_SREV_AR5212 0x50 /* Venice */
319 #define AR5K_SREV_AR5312_R2 0x52 /* AP31 */
320 #define AR5K_SREV_AR5212_V4 0x54 /* ??? */
321 #define AR5K_SREV_AR5213 0x55 /* ??? */
322 #define AR5K_SREV_AR5312_R7 0x57 /* AP30 */
323 #define AR5K_SREV_AR2313_R8 0x58 /* AP43 */
324 #define AR5K_SREV_AR5213A 0x59 /* Hainan */
325 #define AR5K_SREV_AR2413 0x78 /* Griffin lite */
326 #define AR5K_SREV_AR2414 0x70 /* Griffin */
327 #define AR5K_SREV_AR2315_R6 0x86 /* AP51-Light */
328 #define AR5K_SREV_AR2315_R7 0x87 /* AP51-Full */
329 #define AR5K_SREV_AR5424 0x90 /* Condor */
330 #define AR5K_SREV_AR2317_R1 0x90 /* AP61-Light */
331 #define AR5K_SREV_AR2317_R2 0x91 /* AP61-Full */
332 #define AR5K_SREV_AR5413 0xa4 /* Eagle lite */
333 #define AR5K_SREV_AR5414 0xa0 /* Eagle */
334 #define AR5K_SREV_AR2415 0xb0 /* Talon */
335 #define AR5K_SREV_AR5416 0xc0 /* PCI-E */
336 #define AR5K_SREV_AR5418 0xca /* PCI-E */
337 #define AR5K_SREV_AR2425 0xe0 /* Swan */
338 #define AR5K_SREV_AR2417 0xf0 /* Nala */
339
340 #define AR5K_SREV_RAD_5110 0x00
341 #define AR5K_SREV_RAD_5111 0x10
342 #define AR5K_SREV_RAD_5111A 0x15
343 #define AR5K_SREV_RAD_2111 0x20
344 #define AR5K_SREV_RAD_5112 0x30
345 #define AR5K_SREV_RAD_5112A 0x35
346 #define AR5K_SREV_RAD_5112B 0x36
347 #define AR5K_SREV_RAD_2112 0x40
348 #define AR5K_SREV_RAD_2112A 0x45
349 #define AR5K_SREV_RAD_2112B 0x46
350 #define AR5K_SREV_RAD_2413 0x50
351 #define AR5K_SREV_RAD_5413 0x60
352 #define AR5K_SREV_RAD_2316 0x70 /* Cobra SoC */
353 #define AR5K_SREV_RAD_2317 0x80
354 #define AR5K_SREV_RAD_5424 0xa0 /* Mostly same as 5413 */
355 #define AR5K_SREV_RAD_2425 0xa2
356 #define AR5K_SREV_RAD_5133 0xc0
357
358 #define AR5K_SREV_PHY_5211 0x30
359 #define AR5K_SREV_PHY_5212 0x41
360 #define AR5K_SREV_PHY_5212A 0x42
361 #define AR5K_SREV_PHY_5212B 0x43
362 #define AR5K_SREV_PHY_2413 0x45
363 #define AR5K_SREV_PHY_5413 0x61
364 #define AR5K_SREV_PHY_2425 0x70
365
366 /* TODO add support to mac80211 for vendor-specific rates and modes */
367
368 /**
369 * DOC: Atheros XR
370 *
371 * Some of this information is based on Documentation from:
372 *
373 * http://madwifi-project.org/wiki/ChipsetFeatures/SuperAG
374 *
375 * Atheros' eXtended Range - range enhancing extension is a modulation scheme
376 * that is supposed to double the link distance between an Atheros XR-enabled
377 * client device with an Atheros XR-enabled access point. This is achieved
378 * by increasing the receiver sensitivity up to, -105dBm, which is about 20dB
379 * above what the 802.11 specifications demand. In addition, new (proprietary)
380 * data rates are introduced: 3, 2, 1, 0.5 and 0.25 MBit/s.
381 *
382 * Please note that can you either use XR or TURBO but you cannot use both,
383 * they are exclusive.
384 *
385 * Also note that we do not plan to support XR mode at least for now. You can
386 * get a mode similar to XR by using 5MHz bwmode.
387 */
388
389
390 /**
391 * DOC: Atheros SuperAG
392 *
393 * In addition to XR we have another modulation scheme called TURBO mode
394 * that is supposed to provide a throughput transmission speed up to 40Mbit/s
395 * -60Mbit/s at a 108Mbit/s signaling rate achieved through the bonding of two
396 * 54Mbit/s 802.11g channels. To use this feature both ends must support it.
397 * There is also a distinction between "static" and "dynamic" turbo modes:
398 *
399 * - Static: is the dumb version: devices set to this mode stick to it until
400 * the mode is turned off.
401 *
402 * - Dynamic: is the intelligent version, the network decides itself if it
403 * is ok to use turbo. As soon as traffic is detected on adjacent channels
404 * (which would get used in turbo mode), or when a non-turbo station joins
405 * the network, turbo mode won't be used until the situation changes again.
406 * Dynamic mode is achieved by Atheros' Adaptive Radio (AR) feature which
407 * monitors the used radio band in order to decide whether turbo mode may
408 * be used or not.
409 *
410 * This article claims Super G sticks to bonding of channels 5 and 6 for
411 * USA:
412 *
413 * https://www.pcworld.com/article/id,113428-page,1/article.html
414 *
415 * The channel bonding seems to be driver specific though.
416 *
417 * In addition to TURBO modes we also have the following features for even
418 * greater speed-up:
419 *
420 * - Bursting: allows multiple frames to be sent at once, rather than pausing
421 * after each frame. Bursting is a standards-compliant feature that can be
422 * used with any Access Point.
423 *
424 * - Fast frames: increases the amount of information that can be sent per
425 * frame, also resulting in a reduction of transmission overhead. It is a
426 * proprietary feature that needs to be supported by the Access Point.
427 *
428 * - Compression: data frames are compressed in real time using a Lempel Ziv
429 * algorithm. This is done transparently. Once this feature is enabled,
430 * compression and decompression takes place inside the chipset, without
431 * putting additional load on the host CPU.
432 *
433 * As with XR we also don't plan to support SuperAG features for now. You can
434 * get a mode similar to TURBO by using 40MHz bwmode.
435 */
436
437
438 /**
439 * enum ath5k_driver_mode - PHY operation mode
440 * @AR5K_MODE_11A: 802.11a
441 * @AR5K_MODE_11B: 802.11b
442 * @AR5K_MODE_11G: 801.11g
443 * @AR5K_MODE_MAX: Used for boundary checks
444 *
445 * Do not change the order here, we use these as
446 * array indices and it also maps EEPROM structures.
447 */
448 enum ath5k_driver_mode {
449 AR5K_MODE_11A = 0,
450 AR5K_MODE_11B = 1,
451 AR5K_MODE_11G = 2,
452 AR5K_MODE_MAX = 3
453 };
454
455 /**
456 * enum ath5k_ant_mode - Antenna operation mode
457 * @AR5K_ANTMODE_DEFAULT: Default antenna setup
458 * @AR5K_ANTMODE_FIXED_A: Only antenna A is present
459 * @AR5K_ANTMODE_FIXED_B: Only antenna B is present
460 * @AR5K_ANTMODE_SINGLE_AP: STA locked on a single ap
461 * @AR5K_ANTMODE_SECTOR_AP: AP with tx antenna set on tx desc
462 * @AR5K_ANTMODE_SECTOR_STA: STA with tx antenna set on tx desc
463 * @AR5K_ANTMODE_DEBUG: Debug mode -A -> Rx, B-> Tx-
464 * @AR5K_ANTMODE_MAX: Used for boundary checks
465 *
466 * For more infos on antenna control check out phy.c
467 */
468 enum ath5k_ant_mode {
469 AR5K_ANTMODE_DEFAULT = 0,
470 AR5K_ANTMODE_FIXED_A = 1,
471 AR5K_ANTMODE_FIXED_B = 2,
472 AR5K_ANTMODE_SINGLE_AP = 3,
473 AR5K_ANTMODE_SECTOR_AP = 4,
474 AR5K_ANTMODE_SECTOR_STA = 5,
475 AR5K_ANTMODE_DEBUG = 6,
476 AR5K_ANTMODE_MAX,
477 };
478
479 /**
480 * enum ath5k_bw_mode - Bandwidth operation mode
481 * @AR5K_BWMODE_DEFAULT: 20MHz, default operation
482 * @AR5K_BWMODE_5MHZ: Quarter rate
483 * @AR5K_BWMODE_10MHZ: Half rate
484 * @AR5K_BWMODE_40MHZ: Turbo
485 */
486 enum ath5k_bw_mode {
487 AR5K_BWMODE_DEFAULT = 0,
488 AR5K_BWMODE_5MHZ = 1,
489 AR5K_BWMODE_10MHZ = 2,
490 AR5K_BWMODE_40MHZ = 3
491 };
492
493
494
495 /****************\
496 TX DEFINITIONS
497 \****************/
498
499 /**
500 * struct ath5k_tx_status - TX Status descriptor
501 * @ts_seqnum: Sequence number
502 * @ts_tstamp: Timestamp
503 * @ts_status: Status code
504 * @ts_final_idx: Final transmission series index
505 * @ts_final_retry: Final retry count
506 * @ts_rssi: RSSI for received ACK
507 * @ts_shortretry: Short retry count
508 * @ts_virtcol: Virtual collision count
509 * @ts_antenna: Antenna used
510 *
511 * TX status descriptor gets filled by the hw
512 * on each transmission attempt.
513 */
514 struct ath5k_tx_status {
515 u16 ts_seqnum;
516 u16 ts_tstamp;
517 u8 ts_status;
518 u8 ts_final_idx;
519 u8 ts_final_retry;
520 s8 ts_rssi;
521 u8 ts_shortretry;
522 u8 ts_virtcol;
523 u8 ts_antenna;
524 };
525
526 #define AR5K_TXSTAT_ALTRATE 0x80
527 #define AR5K_TXERR_XRETRY 0x01
528 #define AR5K_TXERR_FILT 0x02
529 #define AR5K_TXERR_FIFO 0x04
530
531 /**
532 * enum ath5k_tx_queue - Queue types used to classify tx queues.
533 * @AR5K_TX_QUEUE_INACTIVE: q is unused -- see ath5k_hw_release_tx_queue
534 * @AR5K_TX_QUEUE_DATA: A normal data queue
535 * @AR5K_TX_QUEUE_BEACON: The beacon queue
536 * @AR5K_TX_QUEUE_CAB: The after-beacon queue
537 * @AR5K_TX_QUEUE_UAPSD: Unscheduled Automatic Power Save Delivery queue
538 */
539 enum ath5k_tx_queue {
540 AR5K_TX_QUEUE_INACTIVE = 0,
541 AR5K_TX_QUEUE_DATA,
542 AR5K_TX_QUEUE_BEACON,
543 AR5K_TX_QUEUE_CAB,
544 AR5K_TX_QUEUE_UAPSD,
545 };
546
547 #define AR5K_NUM_TX_QUEUES 10
548 #define AR5K_NUM_TX_QUEUES_NOQCU 2
549
550 /**
551 * enum ath5k_tx_queue_subtype - Queue sub-types to classify normal data queues
552 * @AR5K_WME_AC_BK: Background traffic
553 * @AR5K_WME_AC_BE: Best-effort (normal) traffic
554 * @AR5K_WME_AC_VI: Video traffic
555 * @AR5K_WME_AC_VO: Voice traffic
556 *
557 * These are the 4 Access Categories as defined in
558 * WME spec. 0 is the lowest priority and 4 is the
559 * highest. Normal data that hasn't been classified
560 * goes to the Best Effort AC.
561 */
562 enum ath5k_tx_queue_subtype {
563 AR5K_WME_AC_BK = 0,
564 AR5K_WME_AC_BE,
565 AR5K_WME_AC_VI,
566 AR5K_WME_AC_VO,
567 };
568
569 /**
570 * enum ath5k_tx_queue_id - Queue ID numbers as returned by the hw functions
571 * @AR5K_TX_QUEUE_ID_NOQCU_DATA: Data queue on AR5210 (no QCU available)
572 * @AR5K_TX_QUEUE_ID_NOQCU_BEACON: Beacon queue on AR5210 (no QCU available)
573 * @AR5K_TX_QUEUE_ID_DATA_MIN: Data queue min index
574 * @AR5K_TX_QUEUE_ID_DATA_MAX: Data queue max index
575 * @AR5K_TX_QUEUE_ID_CAB: Content after beacon queue
576 * @AR5K_TX_QUEUE_ID_BEACON: Beacon queue
577 * @AR5K_TX_QUEUE_ID_UAPSD: Urgent Automatic Power Save Delivery,
578 *
579 * Each number represents a hw queue. If hw does not support hw queues
580 * (eg 5210) all data goes in one queue.
581 */
582 enum ath5k_tx_queue_id {
583 AR5K_TX_QUEUE_ID_NOQCU_DATA = 0,
584 AR5K_TX_QUEUE_ID_NOQCU_BEACON = 1,
585 AR5K_TX_QUEUE_ID_DATA_MIN = 0,
586 AR5K_TX_QUEUE_ID_DATA_MAX = 3,
587 AR5K_TX_QUEUE_ID_UAPSD = 7,
588 AR5K_TX_QUEUE_ID_CAB = 8,
589 AR5K_TX_QUEUE_ID_BEACON = 9,
590 };
591
592 /*
593 * Flags to set hw queue's parameters...
594 */
595 #define AR5K_TXQ_FLAG_TXOKINT_ENABLE 0x0001 /* Enable TXOK interrupt */
596 #define AR5K_TXQ_FLAG_TXERRINT_ENABLE 0x0002 /* Enable TXERR interrupt */
597 #define AR5K_TXQ_FLAG_TXEOLINT_ENABLE 0x0004 /* Enable TXEOL interrupt -not used- */
598 #define AR5K_TXQ_FLAG_TXDESCINT_ENABLE 0x0008 /* Enable TXDESC interrupt -not used- */
599 #define AR5K_TXQ_FLAG_TXURNINT_ENABLE 0x0010 /* Enable TXURN interrupt */
600 #define AR5K_TXQ_FLAG_CBRORNINT_ENABLE 0x0020 /* Enable CBRORN interrupt */
601 #define AR5K_TXQ_FLAG_CBRURNINT_ENABLE 0x0040 /* Enable CBRURN interrupt */
602 #define AR5K_TXQ_FLAG_QTRIGINT_ENABLE 0x0080 /* Enable QTRIG interrupt */
603 #define AR5K_TXQ_FLAG_TXNOFRMINT_ENABLE 0x0100 /* Enable TXNOFRM interrupt */
604 #define AR5K_TXQ_FLAG_BACKOFF_DISABLE 0x0200 /* Disable random post-backoff */
605 #define AR5K_TXQ_FLAG_RDYTIME_EXP_POLICY_ENABLE 0x0300 /* Enable ready time expiry policy (?)*/
606 #define AR5K_TXQ_FLAG_FRAG_BURST_BACKOFF_ENABLE 0x0800 /* Enable backoff while bursting */
607 #define AR5K_TXQ_FLAG_POST_FR_BKOFF_DIS 0x1000 /* Disable backoff while bursting */
608 #define AR5K_TXQ_FLAG_COMPRESSION_ENABLE 0x2000 /* Enable hw compression -not implemented-*/
609
610 /**
611 * struct ath5k_txq - Transmit queue state
612 * @qnum: Hardware q number
613 * @link: Link ptr in last TX desc
614 * @q: Transmit queue (&struct list_head)
615 * @lock: Lock on q and link
616 * @setup: Is the queue configured
617 * @txq_len:Number of queued buffers
618 * @txq_max: Max allowed num of queued buffers
619 * @txq_poll_mark: Used to check if queue got stuck
620 * @txq_stuck: Queue stuck counter
621 *
622 * One of these exists for each hardware transmit queue.
623 * Packets sent to us from above are assigned to queues based
624 * on their priority. Not all devices support a complete set
625 * of hardware transmit queues. For those devices the array
626 * sc_ac2q will map multiple priorities to fewer hardware queues
627 * (typically all to one hardware queue).
628 */
629 struct ath5k_txq {
630 unsigned int qnum;
631 u32 *link;
632 struct list_head q;
633 spinlock_t lock;
634 bool setup;
635 int txq_len;
636 int txq_max;
637 bool txq_poll_mark;
638 unsigned int txq_stuck;
639 };
640
641 /**
642 * struct ath5k_txq_info - A struct to hold TX queue's parameters
643 * @tqi_type: One of enum ath5k_tx_queue
644 * @tqi_subtype: One of enum ath5k_tx_queue_subtype
645 * @tqi_flags: TX queue flags (see above)
646 * @tqi_aifs: Arbitrated Inter-frame Space
647 * @tqi_cw_min: Minimum Contention Window
648 * @tqi_cw_max: Maximum Contention Window
649 * @tqi_cbr_period: Constant bit rate period
650 * @tqi_ready_time: Time queue waits after an event when RDYTIME is enabled
651 */
652 struct ath5k_txq_info {
653 enum ath5k_tx_queue tqi_type;
654 enum ath5k_tx_queue_subtype tqi_subtype;
655 u16 tqi_flags;
656 u8 tqi_aifs;
657 u16 tqi_cw_min;
658 u16 tqi_cw_max;
659 u32 tqi_cbr_period;
660 u32 tqi_cbr_overflow_limit;
661 u32 tqi_burst_time;
662 u32 tqi_ready_time;
663 };
664
665 /**
666 * enum ath5k_pkt_type - Transmit packet types
667 * @AR5K_PKT_TYPE_NORMAL: Normal data
668 * @AR5K_PKT_TYPE_ATIM: ATIM
669 * @AR5K_PKT_TYPE_PSPOLL: PS-Poll
670 * @AR5K_PKT_TYPE_BEACON: Beacon
671 * @AR5K_PKT_TYPE_PROBE_RESP: Probe response
672 * @AR5K_PKT_TYPE_PIFS: PIFS
673 * Used on tx control descriptor
674 */
675 enum ath5k_pkt_type {
676 AR5K_PKT_TYPE_NORMAL = 0,
677 AR5K_PKT_TYPE_ATIM = 1,
678 AR5K_PKT_TYPE_PSPOLL = 2,
679 AR5K_PKT_TYPE_BEACON = 3,
680 AR5K_PKT_TYPE_PROBE_RESP = 4,
681 AR5K_PKT_TYPE_PIFS = 5,
682 };
683
684 /*
685 * TX power and TPC settings
686 */
687 #define AR5K_TXPOWER_OFDM(_r, _v) ( \
688 ((0 & 1) << ((_v) + 6)) | \
689 (((ah->ah_txpower.txp_rates_power_table[(_r)]) & 0x3f) << (_v)) \
690 )
691
692 #define AR5K_TXPOWER_CCK(_r, _v) ( \
693 (ah->ah_txpower.txp_rates_power_table[(_r)] & 0x3f) << (_v) \
694 )
695
696
697
698 /****************\
699 RX DEFINITIONS
700 \****************/
701
702 /**
703 * struct ath5k_rx_status - RX Status descriptor
704 * @rs_datalen: Data length
705 * @rs_tstamp: Timestamp
706 * @rs_status: Status code
707 * @rs_phyerr: PHY error mask
708 * @rs_rssi: RSSI in 0.5dbm units
709 * @rs_keyix: Index to the key used for decrypting
710 * @rs_rate: Rate used to decode the frame
711 * @rs_antenna: Antenna used to receive the frame
712 * @rs_more: Indicates this is a frame fragment (Fast frames)
713 */
714 struct ath5k_rx_status {
715 u16 rs_datalen;
716 u16 rs_tstamp;
717 u8 rs_status;
718 u8 rs_phyerr;
719 s8 rs_rssi;
720 u8 rs_keyix;
721 u8 rs_rate;
722 u8 rs_antenna;
723 u8 rs_more;
724 };
725
726 #define AR5K_RXERR_CRC 0x01
727 #define AR5K_RXERR_PHY 0x02
728 #define AR5K_RXERR_FIFO 0x04
729 #define AR5K_RXERR_DECRYPT 0x08
730 #define AR5K_RXERR_MIC 0x10
731 #define AR5K_RXKEYIX_INVALID ((u8) -1)
732 #define AR5K_TXKEYIX_INVALID ((u32) -1)
733
734
735 /**************************\
736 BEACON TIMERS DEFINITIONS
737 \**************************/
738
739 #define AR5K_BEACON_PERIOD 0x0000ffff
740 #define AR5K_BEACON_ENA 0x00800000 /*enable beacon xmit*/
741 #define AR5K_BEACON_RESET_TSF 0x01000000 /*force a TSF reset*/
742
743
744 /*
745 * TSF to TU conversion:
746 *
747 * TSF is a 64bit value in usec (microseconds).
748 * TU is a 32bit value and defined by IEEE802.11 (page 6) as "A measurement of
749 * time equal to 1024 usec", so it's roughly milliseconds (usec / 1024).
750 */
751 #define TSF_TO_TU(_tsf) (u32)((_tsf) >> 10)
752
753
754
755 /*******************************\
756 GAIN OPTIMIZATION DEFINITIONS
757 \*******************************/
758
759 /**
760 * enum ath5k_rfgain - RF Gain optimization engine state
761 * @AR5K_RFGAIN_INACTIVE: Engine disabled
762 * @AR5K_RFGAIN_ACTIVE: Probe active
763 * @AR5K_RFGAIN_READ_REQUESTED: Probe requested
764 * @AR5K_RFGAIN_NEED_CHANGE: Gain_F needs change
765 */
766 enum ath5k_rfgain {
767 AR5K_RFGAIN_INACTIVE = 0,
768 AR5K_RFGAIN_ACTIVE,
769 AR5K_RFGAIN_READ_REQUESTED,
770 AR5K_RFGAIN_NEED_CHANGE,
771 };
772
773 /**
774 * struct ath5k_gain - RF Gain optimization engine state data
775 * @g_step_idx: Current step index
776 * @g_current: Current gain
777 * @g_target: Target gain
778 * @g_low: Low gain boundary
779 * @g_high: High gain boundary
780 * @g_f_corr: Gain_F correction
781 * @g_state: One of enum ath5k_rfgain
782 */
783 struct ath5k_gain {
784 u8 g_step_idx;
785 u8 g_current;
786 u8 g_target;
787 u8 g_low;
788 u8 g_high;
789 u8 g_f_corr;
790 u8 g_state;
791 };
792
793
794
795 /********************\
796 COMMON DEFINITIONS
797 \********************/
798
799 #define AR5K_SLOT_TIME_9 396
800 #define AR5K_SLOT_TIME_20 880
801 #define AR5K_SLOT_TIME_MAX 0xffff
802
803 /**
804 * struct ath5k_athchan_2ghz - 2GHz to 5GHZ map for RF5111
805 * @a2_flags: Channel flags (internal)
806 * @a2_athchan: HW channel number (internal)
807 *
808 * This structure is used to map 2GHz channels to
809 * 5GHz Atheros channels on 2111 frequency converter
810 * that comes together with RF5111
811 * TODO: Clean up
812 */
813 struct ath5k_athchan_2ghz {
814 u32 a2_flags;
815 u16 a2_athchan;
816 };
817
818 /**
819 * enum ath5k_dmasize - DMA size definitions (2^(n+2))
820 * @AR5K_DMASIZE_4B: 4Bytes
821 * @AR5K_DMASIZE_8B: 8Bytes
822 * @AR5K_DMASIZE_16B: 16Bytes
823 * @AR5K_DMASIZE_32B: 32Bytes
824 * @AR5K_DMASIZE_64B: 64Bytes (Default)
825 * @AR5K_DMASIZE_128B: 128Bytes
826 * @AR5K_DMASIZE_256B: 256Bytes
827 * @AR5K_DMASIZE_512B: 512Bytes
828 *
829 * These are used to set DMA burst size on hw
830 *
831 * Note: Some platforms can't handle more than 4Bytes
832 * be careful on embedded boards.
833 */
834 enum ath5k_dmasize {
835 AR5K_DMASIZE_4B = 0,
836 AR5K_DMASIZE_8B,
837 AR5K_DMASIZE_16B,
838 AR5K_DMASIZE_32B,
839 AR5K_DMASIZE_64B,
840 AR5K_DMASIZE_128B,
841 AR5K_DMASIZE_256B,
842 AR5K_DMASIZE_512B
843 };
844
845
846
847 /******************\
848 RATE DEFINITIONS
849 \******************/
850
851 /**
852 * DOC: Rate codes
853 *
854 * Seems the ar5xxx hardware supports up to 32 rates, indexed by 1-32.
855 *
856 * The rate code is used to get the RX rate or set the TX rate on the
857 * hardware descriptors. It is also used for internal modulation control
858 * and settings.
859 *
860 * This is the hardware rate map we are aware of (html unfriendly):
861 *
862 * Rate code Rate (Kbps)
863 * --------- -----------
864 * 0x01 3000 (XR)
865 * 0x02 1000 (XR)
866 * 0x03 250 (XR)
867 * 0x04 - 05 -Reserved-
868 * 0x06 2000 (XR)
869 * 0x07 500 (XR)
870 * 0x08 48000 (OFDM)
871 * 0x09 24000 (OFDM)
872 * 0x0A 12000 (OFDM)
873 * 0x0B 6000 (OFDM)
874 * 0x0C 54000 (OFDM)
875 * 0x0D 36000 (OFDM)
876 * 0x0E 18000 (OFDM)
877 * 0x0F 9000 (OFDM)
878 * 0x10 - 17 -Reserved-
879 * 0x18 11000L (CCK)
880 * 0x19 5500L (CCK)
881 * 0x1A 2000L (CCK)
882 * 0x1B 1000L (CCK)
883 * 0x1C 11000S (CCK)
884 * 0x1D 5500S (CCK)
885 * 0x1E 2000S (CCK)
886 * 0x1F -Reserved-
887 *
888 * "S" indicates CCK rates with short preamble and "L" with long preamble.
889 *
890 * AR5211 has different rate codes for CCK (802.11B) rates. It only uses the
891 * lowest 4 bits, so they are the same as above with a 0xF mask.
892 * (0xB, 0xA, 0x9 and 0x8 for 1M, 2M, 5.5M and 11M).
893 * We handle this in ath5k_setup_bands().
894 */
895 #define AR5K_MAX_RATES 32
896
897 /* B */
898 #define ATH5K_RATE_CODE_1M 0x1B
899 #define ATH5K_RATE_CODE_2M 0x1A
900 #define ATH5K_RATE_CODE_5_5M 0x19
901 #define ATH5K_RATE_CODE_11M 0x18
902 /* A and G */
903 #define ATH5K_RATE_CODE_6M 0x0B
904 #define ATH5K_RATE_CODE_9M 0x0F
905 #define ATH5K_RATE_CODE_12M 0x0A
906 #define ATH5K_RATE_CODE_18M 0x0E
907 #define ATH5K_RATE_CODE_24M 0x09
908 #define ATH5K_RATE_CODE_36M 0x0D
909 #define ATH5K_RATE_CODE_48M 0x08
910 #define ATH5K_RATE_CODE_54M 0x0C
911
912 /* Adding this flag to rate_code on B rates
913 * enables short preamble */
914 #define AR5K_SET_SHORT_PREAMBLE 0x04
915
916 /*
917 * Crypto definitions
918 */
919
920 #define AR5K_KEYCACHE_SIZE 8
921 extern bool ath5k_modparam_nohwcrypt;
922
923 /***********************\
924 HW RELATED DEFINITIONS
925 \***********************/
926
927 /*
928 * Misc definitions
929 */
930 #define AR5K_RSSI_EP_MULTIPLIER (1 << 7)
931
932 #define AR5K_ASSERT_ENTRY(_e, _s) do { \
933 if (_e >= _s) \
934 return false; \
935 } while (0)
936
937 /*
938 * Hardware interrupt abstraction
939 */
940
941 /**
942 * enum ath5k_int - Hardware interrupt masks helpers
943 * @AR5K_INT_RXOK: Frame successfully received
944 * @AR5K_INT_RXDESC: Request RX descriptor/Read RX descriptor
945 * @AR5K_INT_RXERR: Frame reception failed
946 * @AR5K_INT_RXNOFRM: No frame received within a specified time period
947 * @AR5K_INT_RXEOL: Reached "End Of List", means we need more RX descriptors
948 * @AR5K_INT_RXORN: Indicates we got RX FIFO overrun. Note that Rx overrun is
949 * not always fatal, on some chips we can continue operation
950 * without resetting the card, that's why %AR5K_INT_FATAL is not
951 * common for all chips.
952 * @AR5K_INT_RX_ALL: Mask to identify all RX related interrupts
953 *
954 * @AR5K_INT_TXOK: Frame transmission success
955 * @AR5K_INT_TXDESC: Request TX descriptor/Read TX status descriptor
956 * @AR5K_INT_TXERR: Frame transmission failure
957 * @AR5K_INT_TXEOL: Received End Of List for VEOL (Virtual End Of List). The
958 * Queue Control Unit (QCU) signals an EOL interrupt only if a
959 * descriptor's LinkPtr is NULL. For more details, refer to:
960 * "http://www.freepatentsonline.com/20030225739.html"
961 * @AR5K_INT_TXNOFRM: No frame was transmitted within a specified time period
962 * @AR5K_INT_TXURN: Indicates we got TX FIFO underrun. In such case we should
963 * increase the TX trigger threshold.
964 * @AR5K_INT_TX_ALL: Mask to identify all TX related interrupts
965 *
966 * @AR5K_INT_MIB: Indicates the either Management Information Base counters or
967 * one of the PHY error counters reached the maximum value and
968 * should be read and cleared.
969 * @AR5K_INT_SWI: Software triggered interrupt.
970 * @AR5K_INT_RXPHY: RX PHY Error
971 * @AR5K_INT_RXKCM: RX Key cache miss
972 * @AR5K_INT_SWBA: SoftWare Beacon Alert - indicates its time to send a
973 * beacon that must be handled in software. The alternative is if
974 * you have VEOL support, in that case you let the hardware deal
975 * with things.
976 * @AR5K_INT_BRSSI: Beacon received with an RSSI value below our threshold
977 * @AR5K_INT_BMISS: If in STA mode this indicates we have stopped seeing
978 * beacons from the AP have associated with, we should probably
979 * try to reassociate. When in IBSS mode this might mean we have
980 * not received any beacons from any local stations. Note that
981 * every station in an IBSS schedules to send beacons at the
982 * Target Beacon Transmission Time (TBTT) with a random backoff.
983 * @AR5K_INT_BNR: Beacon queue got triggered (DMA beacon alert) while empty.
984 * @AR5K_INT_TIM: Beacon with local station's TIM bit set
985 * @AR5K_INT_DTIM: Beacon with DTIM bit and zero DTIM count received
986 * @AR5K_INT_DTIM_SYNC: DTIM sync lost
987 * @AR5K_INT_GPIO: GPIO interrupt is used for RF Kill switches connected to
988 * our GPIO pins.
989 * @AR5K_INT_BCN_TIMEOUT: Beacon timeout, we waited after TBTT but got noting
990 * @AR5K_INT_CAB_TIMEOUT: We waited for CAB traffic after the beacon but got
991 * nothing or an incomplete CAB frame sequence.
992 * @AR5K_INT_QCBRORN: A queue got it's CBR counter expired
993 * @AR5K_INT_QCBRURN: A queue got triggered wile empty
994 * @AR5K_INT_QTRIG: A queue got triggered
995 *
996 * @AR5K_INT_FATAL: Fatal errors were encountered, typically caused by bus/DMA
997 * errors. Indicates we need to reset the card.
998 * @AR5K_INT_GLOBAL: Used to clear and set the IER
999 * @AR5K_INT_NOCARD: Signals the card has been removed
1000 * @AR5K_INT_COMMON: Common interrupts shared among MACs with the same
1001 * bit value
1002 *
1003 * These are mapped to take advantage of some common bits
1004 * between the MACs, to be able to set intr properties
1005 * easier. Some of them are not used yet inside hw.c. Most map
1006 * to the respective hw interrupt value as they are common among different
1007 * MACs.
1008 */
1009 enum ath5k_int {
1010 AR5K_INT_RXOK = 0x00000001,
1011 AR5K_INT_RXDESC = 0x00000002,
1012 AR5K_INT_RXERR = 0x00000004,
1013 AR5K_INT_RXNOFRM = 0x00000008,
1014 AR5K_INT_RXEOL = 0x00000010,
1015 AR5K_INT_RXORN = 0x00000020,
1016 AR5K_INT_TXOK = 0x00000040,
1017 AR5K_INT_TXDESC = 0x00000080,
1018 AR5K_INT_TXERR = 0x00000100,
1019 AR5K_INT_TXNOFRM = 0x00000200,
1020 AR5K_INT_TXEOL = 0x00000400,
1021 AR5K_INT_TXURN = 0x00000800,
1022 AR5K_INT_MIB = 0x00001000,
1023 AR5K_INT_SWI = 0x00002000,
1024 AR5K_INT_RXPHY = 0x00004000,
1025 AR5K_INT_RXKCM = 0x00008000,
1026 AR5K_INT_SWBA = 0x00010000,
1027 AR5K_INT_BRSSI = 0x00020000,
1028 AR5K_INT_BMISS = 0x00040000,
1029 AR5K_INT_FATAL = 0x00080000, /* Non common */
1030 AR5K_INT_BNR = 0x00100000, /* Non common */
1031 AR5K_INT_TIM = 0x00200000, /* Non common */
1032 AR5K_INT_DTIM = 0x00400000, /* Non common */
1033 AR5K_INT_DTIM_SYNC = 0x00800000, /* Non common */
1034 AR5K_INT_GPIO = 0x01000000,
1035 AR5K_INT_BCN_TIMEOUT = 0x02000000, /* Non common */
1036 AR5K_INT_CAB_TIMEOUT = 0x04000000, /* Non common */
1037 AR5K_INT_QCBRORN = 0x08000000, /* Non common */
1038 AR5K_INT_QCBRURN = 0x10000000, /* Non common */
1039 AR5K_INT_QTRIG = 0x20000000, /* Non common */
1040 AR5K_INT_GLOBAL = 0x80000000,
1041
1042 AR5K_INT_TX_ALL = AR5K_INT_TXOK
1043 | AR5K_INT_TXDESC
1044 | AR5K_INT_TXERR
1045 | AR5K_INT_TXNOFRM
1046 | AR5K_INT_TXEOL
1047 | AR5K_INT_TXURN,
1048
1049 AR5K_INT_RX_ALL = AR5K_INT_RXOK
1050 | AR5K_INT_RXDESC
1051 | AR5K_INT_RXERR
1052 | AR5K_INT_RXNOFRM
1053 | AR5K_INT_RXEOL
1054 | AR5K_INT_RXORN,
1055
1056 AR5K_INT_COMMON = AR5K_INT_RXOK
1057 | AR5K_INT_RXDESC
1058 | AR5K_INT_RXERR
1059 | AR5K_INT_RXNOFRM
1060 | AR5K_INT_RXEOL
1061 | AR5K_INT_RXORN
1062 | AR5K_INT_TXOK
1063 | AR5K_INT_TXDESC
1064 | AR5K_INT_TXERR
1065 | AR5K_INT_TXNOFRM
1066 | AR5K_INT_TXEOL
1067 | AR5K_INT_TXURN
1068 | AR5K_INT_MIB
1069 | AR5K_INT_SWI
1070 | AR5K_INT_RXPHY
1071 | AR5K_INT_RXKCM
1072 | AR5K_INT_SWBA
1073 | AR5K_INT_BRSSI
1074 | AR5K_INT_BMISS
1075 | AR5K_INT_GPIO
1076 | AR5K_INT_GLOBAL,
1077
1078 AR5K_INT_NOCARD = 0xffffffff
1079 };
1080
1081 /**
1082 * enum ath5k_calibration_mask - Mask which calibration is active at the moment
1083 * @AR5K_CALIBRATION_FULL: Full calibration (AGC + SHORT)
1084 * @AR5K_CALIBRATION_SHORT: Short calibration (NF + I/Q)
1085 * @AR5K_CALIBRATION_NF: Noise Floor calibration
1086 * @AR5K_CALIBRATION_ANI: Adaptive Noise Immunity
1087 */
1088 enum ath5k_calibration_mask {
1089 AR5K_CALIBRATION_FULL = 0x01,
1090 AR5K_CALIBRATION_SHORT = 0x02,
1091 AR5K_CALIBRATION_NF = 0x04,
1092 AR5K_CALIBRATION_ANI = 0x08,
1093 };
1094
1095 /**
1096 * enum ath5k_power_mode - Power management modes
1097 * @AR5K_PM_UNDEFINED: Undefined
1098 * @AR5K_PM_AUTO: Allow card to sleep if possible
1099 * @AR5K_PM_AWAKE: Force card to wake up
1100 * @AR5K_PM_FULL_SLEEP: Force card to full sleep (DANGEROUS)
1101 * @AR5K_PM_NETWORK_SLEEP: Allow to sleep for a specified duration
1102 *
1103 * Currently only PM_AWAKE is used, FULL_SLEEP and NETWORK_SLEEP/AUTO
1104 * are also known to have problems on some cards. This is not a big
1105 * problem though because we can have almost the same effect as
1106 * FULL_SLEEP by putting card on warm reset (it's almost powered down).
1107 */
1108 enum ath5k_power_mode {
1109 AR5K_PM_UNDEFINED = 0,
1110 AR5K_PM_AUTO,
1111 AR5K_PM_AWAKE,
1112 AR5K_PM_FULL_SLEEP,
1113 AR5K_PM_NETWORK_SLEEP,
1114 };
1115
1116 /*
1117 * These match net80211 definitions (not used in
1118 * mac80211).
1119 * TODO: Clean this up
1120 */
1121 #define AR5K_LED_INIT 0 /*IEEE80211_S_INIT*/
1122 #define AR5K_LED_SCAN 1 /*IEEE80211_S_SCAN*/
1123 #define AR5K_LED_AUTH 2 /*IEEE80211_S_AUTH*/
1124 #define AR5K_LED_ASSOC 3 /*IEEE80211_S_ASSOC*/
1125 #define AR5K_LED_RUN 4 /*IEEE80211_S_RUN*/
1126
1127 /* GPIO-controlled software LED */
1128 #define AR5K_SOFTLED_PIN 0
1129 #define AR5K_SOFTLED_ON 0
1130 #define AR5K_SOFTLED_OFF 1
1131
1132
1133 /* XXX: we *may* move cap_range stuff to struct wiphy */
1134 struct ath5k_capabilities {
1135 /*
1136 * Supported PHY modes
1137 * (ie. AR5K_MODE_11A, AR5K_MODE_11B, ...)
1138 */
1139 DECLARE_BITMAP(cap_mode, AR5K_MODE_MAX);
1140
1141 /*
1142 * Frequency range (without regulation restrictions)
1143 */
1144 struct {
1145 u16 range_2ghz_min;
1146 u16 range_2ghz_max;
1147 u16 range_5ghz_min;
1148 u16 range_5ghz_max;
1149 } cap_range;
1150
1151 /*
1152 * Values stored in the EEPROM (some of them...)
1153 */
1154 struct ath5k_eeprom_info cap_eeprom;
1155
1156 /*
1157 * Queue information
1158 */
1159 struct {
1160 u8 q_tx_num;
1161 } cap_queues;
1162
1163 bool cap_has_phyerr_counters;
1164 bool cap_has_mrr_support;
1165 bool cap_needs_2GHz_ovr;
1166 };
1167
1168 /* size of noise floor history (keep it a power of two) */
1169 #define ATH5K_NF_CAL_HIST_MAX 8
1170 struct ath5k_nfcal_hist {
1171 s16 index; /* current index into nfval */
1172 s16 nfval[ATH5K_NF_CAL_HIST_MAX]; /* last few noise floors */
1173 };
1174
1175 #define ATH5K_LED_MAX_NAME_LEN 31
1176
1177 /*
1178 * State for LED triggers
1179 */
1180 struct ath5k_led {
1181 char name[ATH5K_LED_MAX_NAME_LEN + 1]; /* name of the LED in sysfs */
1182 struct ath5k_hw *ah; /* driver state */
1183 struct led_classdev led_dev; /* led classdev */
1184 };
1185
1186 /* Rfkill */
1187 struct ath5k_rfkill {
1188 /* GPIO PIN for rfkill */
1189 u16 gpio;
1190 /* polarity of rfkill GPIO PIN */
1191 bool polarity;
1192 /* RFKILL toggle tasklet */
1193 struct tasklet_struct toggleq;
1194 };
1195
1196 /* statistics */
1197 struct ath5k_statistics {
1198 /* antenna use */
1199 unsigned int antenna_rx[5]; /* frames count per antenna RX */
1200 unsigned int antenna_tx[5]; /* frames count per antenna TX */
1201
1202 /* frame errors */
1203 unsigned int rx_all_count; /* all RX frames, including errors */
1204 unsigned int tx_all_count; /* all TX frames, including errors */
1205 unsigned int rx_bytes_count; /* all RX bytes, including errored pkts
1206 * and the MAC headers for each packet
1207 */
1208 unsigned int tx_bytes_count; /* all TX bytes, including errored pkts
1209 * and the MAC headers and padding for
1210 * each packet.
1211 */
1212 unsigned int rxerr_crc;
1213 unsigned int rxerr_phy;
1214 unsigned int rxerr_phy_code[32];
1215 unsigned int rxerr_fifo;
1216 unsigned int rxerr_decrypt;
1217 unsigned int rxerr_mic;
1218 unsigned int rxerr_proc;
1219 unsigned int rxerr_jumbo;
1220 unsigned int txerr_retry;
1221 unsigned int txerr_fifo;
1222 unsigned int txerr_filt;
1223
1224 /* MIB counters */
1225 unsigned int ack_fail;
1226 unsigned int rts_fail;
1227 unsigned int rts_ok;
1228 unsigned int fcs_error;
1229 unsigned int beacons;
1230
1231 unsigned int mib_intr;
1232 unsigned int rxorn_intr;
1233 unsigned int rxeol_intr;
1234 };
1235
1236 /*
1237 * Misc defines
1238 */
1239
1240 #define AR5K_MAX_GPIO 10
1241 #define AR5K_MAX_RF_BANKS 8
1242
1243 #if CHAN_DEBUG
1244 #define ATH_CHAN_MAX (26 + 26 + 26 + 200 + 200)
1245 #else
1246 #define ATH_CHAN_MAX (14 + 14 + 14 + 252 + 20)
1247 #endif
1248
1249 #define ATH_RXBUF 40 /* number of RX buffers */
1250 #define ATH_TXBUF 200 /* number of TX buffers */
1251 #define ATH_BCBUF 4 /* number of beacon buffers */
1252 #define ATH5K_TXQ_LEN_MAX (ATH_TXBUF / 4) /* bufs per queue */
1253 #define ATH5K_TXQ_LEN_LOW (ATH5K_TXQ_LEN_MAX / 2) /* low mark */
1254
1255 DECLARE_EWMA(beacon_rssi, 10, 8)
1256
1257 /* Driver state associated with an instance of a device */
1258 struct ath5k_hw {
1259 struct ath_common common;
1260
1261 struct pci_dev *pdev;
1262 struct device *dev; /* for dma mapping */
1263 int irq;
1264 u16 devid;
1265 void __iomem *iobase; /* address of the device */
1266 struct mutex lock; /* dev-level lock */
1267 struct ieee80211_hw *hw; /* IEEE 802.11 common */
1268 struct ieee80211_supported_band sbands[NUM_NL80211_BANDS];
1269 struct ieee80211_channel channels[ATH_CHAN_MAX];
1270 struct ieee80211_rate rates[NUM_NL80211_BANDS][AR5K_MAX_RATES];
1271 s8 rate_idx[NUM_NL80211_BANDS][AR5K_MAX_RATES];
1272 enum nl80211_iftype opmode;
1273
1274 #ifdef CONFIG_ATH5K_DEBUG
1275 struct ath5k_dbg_info debug; /* debug info */
1276 #endif /* CONFIG_ATH5K_DEBUG */
1277
1278 struct ath5k_buf *bufptr; /* allocated buffer ptr */
1279 struct ath5k_desc *desc; /* TX/RX descriptors */
1280 dma_addr_t desc_daddr; /* DMA (physical) address */
1281 size_t desc_len; /* size of TX/RX descriptors */
1282
1283 DECLARE_BITMAP(status, 4);
1284 #define ATH_STAT_INVALID 0 /* disable hardware accesses */
1285 #define ATH_STAT_LEDSOFT 2 /* enable LED gpio status */
1286 #define ATH_STAT_STARTED 3 /* opened & irqs enabled */
1287 #define ATH_STAT_RESET 4 /* hw reset */
1288
1289 unsigned int filter_flags; /* HW flags, AR5K_RX_FILTER_* */
1290 unsigned int fif_filter_flags; /* Current FIF_* filter flags */
1291 struct ieee80211_channel *curchan; /* current h/w channel */
1292
1293 u16 nvifs;
1294
1295 enum ath5k_int imask; /* interrupt mask copy */
1296
1297 spinlock_t irqlock;
1298 bool rx_pending; /* rx tasklet pending */
1299 bool tx_pending; /* tx tasklet pending */
1300
1301 u8 bssidmask[ETH_ALEN];
1302
1303 unsigned int led_pin, /* GPIO pin for driving LED */
1304 led_on; /* pin setting for LED on */
1305
1306 struct work_struct reset_work; /* deferred chip reset */
1307 struct work_struct calib_work; /* deferred phy calibration */
1308
1309 struct list_head rxbuf; /* receive buffer */
1310 spinlock_t rxbuflock;
1311 u32 *rxlink; /* link ptr in last RX desc */
1312 struct tasklet_struct rxtq; /* rx intr tasklet */
1313 struct ath5k_led rx_led; /* rx led */
1314
1315 struct list_head txbuf; /* transmit buffer */
1316 spinlock_t txbuflock;
1317 unsigned int txbuf_len; /* buf count in txbuf list */
1318 struct ath5k_txq txqs[AR5K_NUM_TX_QUEUES]; /* tx queues */
1319 struct tasklet_struct txtq; /* tx intr tasklet */
1320 struct ath5k_led tx_led; /* tx led */
1321
1322 struct ath5k_rfkill rf_kill;
1323
1324 spinlock_t block; /* protects beacon */
1325 struct tasklet_struct beacontq; /* beacon intr tasklet */
1326 struct list_head bcbuf; /* beacon buffer */
1327 struct ieee80211_vif *bslot[ATH_BCBUF];
1328 u16 num_ap_vifs;
1329 u16 num_adhoc_vifs;
1330 u16 num_mesh_vifs;
1331 unsigned int bhalq, /* SW q for outgoing beacons */
1332 bmisscount, /* missed beacon transmits */
1333 bintval, /* beacon interval in TU */
1334 bsent;
1335 unsigned int nexttbtt; /* next beacon time in TU */
1336 struct ath5k_txq *cabq; /* content after beacon */
1337
1338 bool assoc; /* associate state */
1339 bool enable_beacon; /* true if beacons are on */
1340
1341 struct ath5k_statistics stats;
1342
1343 struct ath5k_ani_state ani_state;
1344 struct tasklet_struct ani_tasklet; /* ANI calibration */
1345
1346 struct delayed_work tx_complete_work;
1347
1348 struct survey_info survey; /* collected survey info */
1349
1350 enum ath5k_int ah_imr;
1351
1352 struct ieee80211_channel *ah_current_channel;
1353 bool ah_iq_cal_needed;
1354 bool ah_single_chip;
1355
1356 enum ath5k_version ah_version;
1357 enum ath5k_radio ah_radio;
1358 u32 ah_mac_srev;
1359 u16 ah_mac_version;
1360 u16 ah_phy_revision;
1361 u16 ah_radio_5ghz_revision;
1362 u16 ah_radio_2ghz_revision;
1363
1364 #define ah_modes ah_capabilities.cap_mode
1365 #define ah_ee_version ah_capabilities.cap_eeprom.ee_version
1366
1367 u8 ah_retry_long;
1368 u8 ah_retry_short;
1369
1370 bool ah_use_32khz_clock;
1371
1372 u8 ah_coverage_class;
1373 bool ah_ack_bitrate_high;
1374 u8 ah_bwmode;
1375 bool ah_short_slot;
1376
1377 /* Antenna Control */
1378 u32 ah_ant_ctl[AR5K_EEPROM_N_MODES][AR5K_ANT_MAX];
1379 u8 ah_ant_mode;
1380 u8 ah_tx_ant;
1381 u8 ah_def_ant;
1382
1383 struct ath5k_capabilities ah_capabilities;
1384
1385 struct ath5k_txq_info ah_txq[AR5K_NUM_TX_QUEUES];
1386 u32 ah_txq_status;
1387 u32 ah_txq_imr_txok;
1388 u32 ah_txq_imr_txerr;
1389 u32 ah_txq_imr_txurn;
1390 u32 ah_txq_imr_txdesc;
1391 u32 ah_txq_imr_txeol;
1392 u32 ah_txq_imr_cbrorn;
1393 u32 ah_txq_imr_cbrurn;
1394 u32 ah_txq_imr_qtrig;
1395 u32 ah_txq_imr_nofrm;
1396
1397 u32 ah_txq_isr_txok_all;
1398 u32 ah_txq_isr_txurn;
1399 u32 ah_txq_isr_qcborn;
1400 u32 ah_txq_isr_qcburn;
1401 u32 ah_txq_isr_qtrig;
1402
1403 u32 *ah_rf_banks;
1404 size_t ah_rf_banks_size;
1405 size_t ah_rf_regs_count;
1406 struct ath5k_gain ah_gain;
1407 u8 ah_offset[AR5K_MAX_RF_BANKS];
1408
1409
1410 struct {
1411 /* Temporary tables used for interpolation */
1412 u8 tmpL[AR5K_EEPROM_N_PD_GAINS]
1413 [AR5K_EEPROM_POWER_TABLE_SIZE];
1414 u8 tmpR[AR5K_EEPROM_N_PD_GAINS]
1415 [AR5K_EEPROM_POWER_TABLE_SIZE];
1416 u8 txp_pd_table[AR5K_EEPROM_POWER_TABLE_SIZE * 2];
1417 u16 txp_rates_power_table[AR5K_MAX_RATES];
1418 u8 txp_min_idx;
1419 bool txp_tpc;
1420 /* Values in 0.25dB units */
1421 s16 txp_min_pwr;
1422 s16 txp_max_pwr;
1423 s16 txp_cur_pwr;
1424 /* Values in 0.5dB units */
1425 s16 txp_offset;
1426 s16 txp_ofdm;
1427 s16 txp_cck_ofdm_gainf_delta;
1428 /* Value in dB units */
1429 s16 txp_cck_ofdm_pwr_delta;
1430 bool txp_setup;
1431 int txp_requested; /* Requested tx power in dBm */
1432 } ah_txpower;
1433
1434 struct ath5k_nfcal_hist ah_nfcal_hist;
1435
1436 /* average beacon RSSI in our BSS (used by ANI) */
1437 struct ewma_beacon_rssi ah_beacon_rssi_avg;
1438
1439 /* noise floor from last periodic calibration */
1440 s32 ah_noise_floor;
1441
1442 /* Calibration timestamp */
1443 unsigned long ah_cal_next_full;
1444 unsigned long ah_cal_next_short;
1445 unsigned long ah_cal_next_ani;
1446
1447 /* Calibration mask */
1448 u8 ah_cal_mask;
1449
1450 /*
1451 * Function pointers
1452 */
1453 int (*ah_setup_tx_desc)(struct ath5k_hw *, struct ath5k_desc *,
1454 unsigned int, unsigned int, int, enum ath5k_pkt_type,
1455 unsigned int, unsigned int, unsigned int, unsigned int,
1456 unsigned int, unsigned int, unsigned int, unsigned int);
1457 int (*ah_proc_tx_desc)(struct ath5k_hw *, struct ath5k_desc *,
1458 struct ath5k_tx_status *);
1459 int (*ah_proc_rx_desc)(struct ath5k_hw *, struct ath5k_desc *,
1460 struct ath5k_rx_status *);
1461 };
1462
1463 struct ath_bus_ops {
1464 enum ath_bus_type ath_bus_type;
1465 void (*read_cachesize)(struct ath_common *common, int *csz);
1466 bool (*eeprom_read)(struct ath_common *common, u32 off, u16 *data);
1467 int (*eeprom_read_mac)(struct ath5k_hw *ah, u8 *mac);
1468 };
1469
1470 /*
1471 * Prototypes
1472 */
1473 extern const struct ieee80211_ops ath5k_hw_ops;
1474
1475 /* Initialization and detach functions */
1476 int ath5k_hw_init(struct ath5k_hw *ah);
1477 void ath5k_hw_deinit(struct ath5k_hw *ah);
1478
1479 int ath5k_sysfs_register(struct ath5k_hw *ah);
1480 void ath5k_sysfs_unregister(struct ath5k_hw *ah);
1481
1482 /*Chip id helper functions */
1483 int ath5k_hw_read_srev(struct ath5k_hw *ah);
1484
1485 /* LED functions */
1486 int ath5k_init_leds(struct ath5k_hw *ah);
1487 void ath5k_led_enable(struct ath5k_hw *ah);
1488 void ath5k_led_off(struct ath5k_hw *ah);
1489 void ath5k_unregister_leds(struct ath5k_hw *ah);
1490
1491
1492 /* Reset Functions */
1493 int ath5k_hw_nic_wakeup(struct ath5k_hw *ah, struct ieee80211_channel *channel);
1494 int ath5k_hw_on_hold(struct ath5k_hw *ah);
1495 int ath5k_hw_reset(struct ath5k_hw *ah, enum nl80211_iftype op_mode,
1496 struct ieee80211_channel *channel, bool fast, bool skip_pcu);
1497 int ath5k_hw_register_timeout(struct ath5k_hw *ah, u32 reg, u32 flag, u32 val,
1498 bool is_set);
1499 /* Power management functions */
1500
1501
1502 /* Clock rate related functions */
1503 unsigned int ath5k_hw_htoclock(struct ath5k_hw *ah, unsigned int usec);
1504 unsigned int ath5k_hw_clocktoh(struct ath5k_hw *ah, unsigned int clock);
1505 void ath5k_hw_set_clockrate(struct ath5k_hw *ah);
1506
1507
1508 /* DMA Related Functions */
1509 void ath5k_hw_start_rx_dma(struct ath5k_hw *ah);
1510 u32 ath5k_hw_get_rxdp(struct ath5k_hw *ah);
1511 int ath5k_hw_set_rxdp(struct ath5k_hw *ah, u32 phys_addr);
1512 int ath5k_hw_start_tx_dma(struct ath5k_hw *ah, unsigned int queue);
1513 int ath5k_hw_stop_beacon_queue(struct ath5k_hw *ah, unsigned int queue);
1514 u32 ath5k_hw_get_txdp(struct ath5k_hw *ah, unsigned int queue);
1515 int ath5k_hw_set_txdp(struct ath5k_hw *ah, unsigned int queue,
1516 u32 phys_addr);
1517 int ath5k_hw_update_tx_triglevel(struct ath5k_hw *ah, bool increase);
1518 /* Interrupt handling */
1519 bool ath5k_hw_is_intr_pending(struct ath5k_hw *ah);
1520 int ath5k_hw_get_isr(struct ath5k_hw *ah, enum ath5k_int *interrupt_mask);
1521 enum ath5k_int ath5k_hw_set_imr(struct ath5k_hw *ah, enum ath5k_int new_mask);
1522 void ath5k_hw_update_mib_counters(struct ath5k_hw *ah);
1523 /* Init/Stop functions */
1524 void ath5k_hw_dma_init(struct ath5k_hw *ah);
1525 int ath5k_hw_dma_stop(struct ath5k_hw *ah);
1526
1527 /* EEPROM access functions */
1528 int ath5k_eeprom_init(struct ath5k_hw *ah);
1529 void ath5k_eeprom_detach(struct ath5k_hw *ah);
1530 int ath5k_eeprom_mode_from_channel(struct ath5k_hw *ah,
1531 struct ieee80211_channel *channel);
1532
1533 /* Protocol Control Unit Functions */
1534 /* Helpers */
1535 int ath5k_hw_get_frame_duration(struct ath5k_hw *ah, enum nl80211_band band,
1536 int len, struct ieee80211_rate *rate, bool shortpre);
1537 unsigned int ath5k_hw_get_default_slottime(struct ath5k_hw *ah);
1538 unsigned int ath5k_hw_get_default_sifs(struct ath5k_hw *ah);
1539 int ath5k_hw_set_opmode(struct ath5k_hw *ah, enum nl80211_iftype opmode);
1540 void ath5k_hw_set_coverage_class(struct ath5k_hw *ah, u8 coverage_class);
1541 /* RX filter control*/
1542 int ath5k_hw_set_lladdr(struct ath5k_hw *ah, const u8 *mac);
1543 void ath5k_hw_set_bssid(struct ath5k_hw *ah);
1544 void ath5k_hw_set_bssid_mask(struct ath5k_hw *ah, const u8 *mask);
1545 void ath5k_hw_set_mcast_filter(struct ath5k_hw *ah, u32 filter0, u32 filter1);
1546 u32 ath5k_hw_get_rx_filter(struct ath5k_hw *ah);
1547 void ath5k_hw_set_rx_filter(struct ath5k_hw *ah, u32 filter);
1548 /* Receive (DRU) start/stop functions */
1549 void ath5k_hw_start_rx_pcu(struct ath5k_hw *ah);
1550 void ath5k_hw_stop_rx_pcu(struct ath5k_hw *ah);
1551 /* Beacon control functions */
1552 u64 ath5k_hw_get_tsf64(struct ath5k_hw *ah);
1553 void ath5k_hw_set_tsf64(struct ath5k_hw *ah, u64 tsf64);
1554 void ath5k_hw_reset_tsf(struct ath5k_hw *ah);
1555 void ath5k_hw_init_beacon_timers(struct ath5k_hw *ah, u32 next_beacon,
1556 u32 interval);
1557 bool ath5k_hw_check_beacon_timers(struct ath5k_hw *ah, int intval);
1558 /* Init function */
1559 void ath5k_hw_pcu_init(struct ath5k_hw *ah, enum nl80211_iftype op_mode);
1560
1561 /* Queue Control Unit, DFS Control Unit Functions */
1562 int ath5k_hw_get_tx_queueprops(struct ath5k_hw *ah, int queue,
1563 struct ath5k_txq_info *queue_info);
1564 int ath5k_hw_set_tx_queueprops(struct ath5k_hw *ah, int queue,
1565 const struct ath5k_txq_info *queue_info);
1566 int ath5k_hw_setup_tx_queue(struct ath5k_hw *ah,
1567 enum ath5k_tx_queue queue_type,
1568 struct ath5k_txq_info *queue_info);
1569 void ath5k_hw_set_tx_retry_limits(struct ath5k_hw *ah,
1570 unsigned int queue);
1571 u32 ath5k_hw_num_tx_pending(struct ath5k_hw *ah, unsigned int queue);
1572 void ath5k_hw_release_tx_queue(struct ath5k_hw *ah, unsigned int queue);
1573 int ath5k_hw_reset_tx_queue(struct ath5k_hw *ah, unsigned int queue);
1574 int ath5k_hw_set_ifs_intervals(struct ath5k_hw *ah, unsigned int slot_time);
1575 /* Init function */
1576 int ath5k_hw_init_queues(struct ath5k_hw *ah);
1577
1578 /* Hardware Descriptor Functions */
1579 int ath5k_hw_init_desc_functions(struct ath5k_hw *ah);
1580 int ath5k_hw_setup_rx_desc(struct ath5k_hw *ah, struct ath5k_desc *desc,
1581 u32 size, unsigned int flags);
1582 int ath5k_hw_setup_mrr_tx_desc(struct ath5k_hw *ah, struct ath5k_desc *desc,
1583 unsigned int tx_rate1, u_int tx_tries1, u_int tx_rate2,
1584 u_int tx_tries2, unsigned int tx_rate3, u_int tx_tries3);
1585
1586
1587 /* GPIO Functions */
1588 void ath5k_hw_set_ledstate(struct ath5k_hw *ah, unsigned int state);
1589 int ath5k_hw_set_gpio_input(struct ath5k_hw *ah, u32 gpio);
1590 int ath5k_hw_set_gpio_output(struct ath5k_hw *ah, u32 gpio);
1591 u32 ath5k_hw_get_gpio(struct ath5k_hw *ah, u32 gpio);
1592 int ath5k_hw_set_gpio(struct ath5k_hw *ah, u32 gpio, u32 val);
1593 void ath5k_hw_set_gpio_intr(struct ath5k_hw *ah, unsigned int gpio,
1594 u32 interrupt_level);
1595
1596
1597 /* RFkill Functions */
1598 void ath5k_rfkill_hw_start(struct ath5k_hw *ah);
1599 void ath5k_rfkill_hw_stop(struct ath5k_hw *ah);
1600
1601
1602 /* Misc functions TODO: Cleanup */
1603 int ath5k_hw_set_capabilities(struct ath5k_hw *ah);
1604 int ath5k_hw_enable_pspoll(struct ath5k_hw *ah, u8 *bssid, u16 assoc_id);
1605 int ath5k_hw_disable_pspoll(struct ath5k_hw *ah);
1606
1607
1608 /* Initial register settings functions */
1609 int ath5k_hw_write_initvals(struct ath5k_hw *ah, u8 mode, bool change_channel);
1610
1611
1612 /* PHY functions */
1613 /* Misc PHY functions */
1614 u16 ath5k_hw_radio_revision(struct ath5k_hw *ah, enum nl80211_band band);
1615 int ath5k_hw_phy_disable(struct ath5k_hw *ah);
1616 /* Gain_F optimization */
1617 enum ath5k_rfgain ath5k_hw_gainf_calibrate(struct ath5k_hw *ah);
1618 int ath5k_hw_rfgain_opt_init(struct ath5k_hw *ah);
1619 /* PHY/RF channel functions */
1620 bool ath5k_channel_ok(struct ath5k_hw *ah, struct ieee80211_channel *channel);
1621 /* PHY calibration */
1622 void ath5k_hw_init_nfcal_hist(struct ath5k_hw *ah);
1623 int ath5k_hw_phy_calibrate(struct ath5k_hw *ah,
1624 struct ieee80211_channel *channel);
1625 void ath5k_hw_update_noise_floor(struct ath5k_hw *ah);
1626 /* Spur mitigation */
1627 bool ath5k_hw_chan_has_spur_noise(struct ath5k_hw *ah,
1628 struct ieee80211_channel *channel);
1629 /* Antenna control */
1630 void ath5k_hw_set_antenna_mode(struct ath5k_hw *ah, u8 ant_mode);
1631 void ath5k_hw_set_antenna_switch(struct ath5k_hw *ah, u8 ee_mode);
1632 /* TX power setup */
1633 int ath5k_hw_set_txpower_limit(struct ath5k_hw *ah, u8 txpower);
1634 /* Init function */
1635 int ath5k_hw_phy_init(struct ath5k_hw *ah, struct ieee80211_channel *channel,
1636 u8 mode, bool fast);
1637
1638 /*
1639 * Functions used internally
1640 */
1641
ath5k_hw_common(struct ath5k_hw * ah)1642 static inline struct ath_common *ath5k_hw_common(struct ath5k_hw *ah)
1643 {
1644 return &ah->common;
1645 }
1646
ath5k_hw_regulatory(struct ath5k_hw * ah)1647 static inline struct ath_regulatory *ath5k_hw_regulatory(struct ath5k_hw *ah)
1648 {
1649 return &(ath5k_hw_common(ah)->regulatory);
1650 }
1651
1652 #ifdef CONFIG_ATH5K_AHB
1653 #define AR5K_AR2315_PCI_BASE ((void __iomem *)0xb0100000)
1654
ath5k_ahb_reg(struct ath5k_hw * ah,u16 reg)1655 static inline void __iomem *ath5k_ahb_reg(struct ath5k_hw *ah, u16 reg)
1656 {
1657 /* On AR2315 and AR2317 the PCI clock domain registers
1658 * are outside of the WMAC register space */
1659 if (unlikely((reg >= 0x4000) && (reg < 0x5000) &&
1660 (ah->ah_mac_srev >= AR5K_SREV_AR2315_R6)))
1661 return AR5K_AR2315_PCI_BASE + reg;
1662
1663 return ah->iobase + reg;
1664 }
1665
ath5k_hw_reg_read(struct ath5k_hw * ah,u16 reg)1666 static inline u32 ath5k_hw_reg_read(struct ath5k_hw *ah, u16 reg)
1667 {
1668 return ioread32(ath5k_ahb_reg(ah, reg));
1669 }
1670
ath5k_hw_reg_write(struct ath5k_hw * ah,u32 val,u16 reg)1671 static inline void ath5k_hw_reg_write(struct ath5k_hw *ah, u32 val, u16 reg)
1672 {
1673 iowrite32(val, ath5k_ahb_reg(ah, reg));
1674 }
1675
1676 #else
1677
ath5k_hw_reg_read(struct ath5k_hw * ah,u16 reg)1678 static inline u32 ath5k_hw_reg_read(struct ath5k_hw *ah, u16 reg)
1679 {
1680 return ioread32(ah->iobase + reg);
1681 }
1682
ath5k_hw_reg_write(struct ath5k_hw * ah,u32 val,u16 reg)1683 static inline void ath5k_hw_reg_write(struct ath5k_hw *ah, u32 val, u16 reg)
1684 {
1685 iowrite32(val, ah->iobase + reg);
1686 }
1687
1688 #endif
1689
ath5k_get_bus_type(struct ath5k_hw * ah)1690 static inline enum ath_bus_type ath5k_get_bus_type(struct ath5k_hw *ah)
1691 {
1692 return ath5k_hw_common(ah)->bus_ops->ath_bus_type;
1693 }
1694
ath5k_read_cachesize(struct ath_common * common,int * csz)1695 static inline void ath5k_read_cachesize(struct ath_common *common, int *csz)
1696 {
1697 common->bus_ops->read_cachesize(common, csz);
1698 }
1699
ath5k_hw_nvram_read(struct ath5k_hw * ah,u32 off,u16 * data)1700 static inline bool ath5k_hw_nvram_read(struct ath5k_hw *ah, u32 off, u16 *data)
1701 {
1702 struct ath_common *common = ath5k_hw_common(ah);
1703 return common->bus_ops->eeprom_read(common, off, data);
1704 }
1705
ath5k_hw_bitswap(u32 val,unsigned int bits)1706 static inline u32 ath5k_hw_bitswap(u32 val, unsigned int bits)
1707 {
1708 u32 retval = 0, bit, i;
1709
1710 for (i = 0; i < bits; i++) {
1711 bit = (val >> i) & 1;
1712 retval = (retval << 1) | bit;
1713 }
1714
1715 return retval;
1716 }
1717
1718 #endif
1719
