2 * Copyright (c) 2004-2007 Reyk Floeter <reyk@openbsd.org>
3 * Copyright (c) 2006-2007 Nick Kossifidis <mickflemm@gmail.com>
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.
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.
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) */
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>
33 /* RX/TX descriptor hw structs
34 * TODO: Driver part should only see sw structs */
37 /* EEPROM structs/offsets
38 * TODO: Make a more generic struct (eg. add more stuff to ath5k_capabilities)
39 * and clean up common bits, then introduce set/get functions in eeprom.c */
46 #define PCI_DEVICE_ID_ATHEROS_AR5210 0x0007 /* AR5210 */
47 #define PCI_DEVICE_ID_ATHEROS_AR5311 0x0011 /* AR5311 */
48 #define PCI_DEVICE_ID_ATHEROS_AR5211 0x0012 /* AR5211 */
49 #define PCI_DEVICE_ID_ATHEROS_AR5212 0x0013 /* AR5212 */
50 #define PCI_DEVICE_ID_3COM_3CRDAG675 0x0013 /* 3CRDAG675 (Atheros AR5212) */
51 #define PCI_DEVICE_ID_3COM_2_3CRPAG175 0x0013 /* 3CRPAG175 (Atheros AR5212) */
52 #define PCI_DEVICE_ID_ATHEROS_AR5210_AP 0x0207 /* AR5210 (Early) */
53 #define PCI_DEVICE_ID_ATHEROS_AR5212_IBM 0x1014 /* AR5212 (IBM MiniPCI) */
54 #define PCI_DEVICE_ID_ATHEROS_AR5210_DEFAULT 0x1107 /* AR5210 (no eeprom) */
55 #define PCI_DEVICE_ID_ATHEROS_AR5212_DEFAULT 0x1113 /* AR5212 (no eeprom) */
56 #define PCI_DEVICE_ID_ATHEROS_AR5211_DEFAULT 0x1112 /* AR5211 (no eeprom) */
57 #define PCI_DEVICE_ID_ATHEROS_AR5212_FPGA 0xf013 /* AR5212 (emulation board) */
58 #define PCI_DEVICE_ID_ATHEROS_AR5211_LEGACY 0xff12 /* AR5211 (emulation board) */
59 #define PCI_DEVICE_ID_ATHEROS_AR5211_FPGA11B 0xf11b /* AR5211 (emulation board) */
60 #define PCI_DEVICE_ID_ATHEROS_AR5312_REV2 0x0052 /* AR5312 WMAC (AP31) */
61 #define PCI_DEVICE_ID_ATHEROS_AR5312_REV7 0x0057 /* AR5312 WMAC (AP30-040) */
62 #define PCI_DEVICE_ID_ATHEROS_AR5312_REV8 0x0058 /* AR5312 WMAC (AP43-030) */
63 #define PCI_DEVICE_ID_ATHEROS_AR5212_0014 0x0014 /* AR5212 compatible */
64 #define PCI_DEVICE_ID_ATHEROS_AR5212_0015 0x0015 /* AR5212 compatible */
65 #define PCI_DEVICE_ID_ATHEROS_AR5212_0016 0x0016 /* AR5212 compatible */
66 #define PCI_DEVICE_ID_ATHEROS_AR5212_0017 0x0017 /* AR5212 compatible */
67 #define PCI_DEVICE_ID_ATHEROS_AR5212_0018 0x0018 /* AR5212 compatible */
68 #define PCI_DEVICE_ID_ATHEROS_AR5212_0019 0x0019 /* AR5212 compatible */
69 #define PCI_DEVICE_ID_ATHEROS_AR2413 0x001a /* AR2413 (Griffin-lite) */
70 #define PCI_DEVICE_ID_ATHEROS_AR5413 0x001b /* AR5413 (Eagle) */
71 #define PCI_DEVICE_ID_ATHEROS_AR5424 0x001c /* AR5424 (Condor PCI-E) */
72 #define PCI_DEVICE_ID_ATHEROS_AR5416 0x0023 /* AR5416 */
73 #define PCI_DEVICE_ID_ATHEROS_AR5418 0x0024 /* AR5418 */
75 /****************************\
76 GENERIC DRIVER DEFINITIONS
77 \****************************/
79 #define ATH5K_PRINTF(fmt, ...) \
80 printk(KERN_WARNING "%s: " fmt, __func__, ##__VA_ARGS__)
82 #define ATH5K_PRINTK(_sc, _level, _fmt, ...) \
83 printk(_level "ath5k %s: " _fmt, \
84 ((_sc) && (_sc)->hw) ? wiphy_name((_sc)->hw->wiphy) : "", \
87 #define ATH5K_PRINTK_LIMIT(_sc, _level, _fmt, ...) do { \
88 if (net_ratelimit()) \
89 ATH5K_PRINTK(_sc, _level, _fmt, ##__VA_ARGS__); \
92 #define ATH5K_INFO(_sc, _fmt, ...) \
93 ATH5K_PRINTK(_sc, KERN_INFO, _fmt, ##__VA_ARGS__)
95 #define ATH5K_WARN(_sc, _fmt, ...) \
96 ATH5K_PRINTK_LIMIT(_sc, KERN_WARNING, _fmt, ##__VA_ARGS__)
98 #define ATH5K_ERR(_sc, _fmt, ...) \
99 ATH5K_PRINTK_LIMIT(_sc, KERN_ERR, _fmt, ##__VA_ARGS__)
102 * AR5K REGISTER ACCESS
105 /* Some macros to read/write fields */
107 /* First shift, then mask */
108 #define AR5K_REG_SM(_val, _flags) \
109 (((_val) << _flags##_S) & (_flags))
111 /* First mask, then shift */
112 #define AR5K_REG_MS(_val, _flags) \
113 (((_val) & (_flags)) >> _flags##_S)
115 /* Some registers can hold multiple values of interest. For this
116 * reason when we want to write to these registers we must first
117 * retrieve the values which we do not want to clear (lets call this
118 * old_data) and then set the register with this and our new_value:
119 * ( old_data | new_value) */
120 #define AR5K_REG_WRITE_BITS(ah, _reg, _flags, _val) \
121 ath5k_hw_reg_write(ah, (ath5k_hw_reg_read(ah, _reg) & ~(_flags)) | \
122 (((_val) << _flags##_S) & (_flags)), _reg)
124 #define AR5K_REG_MASKED_BITS(ah, _reg, _flags, _mask) \
125 ath5k_hw_reg_write(ah, (ath5k_hw_reg_read(ah, _reg) & \
126 (_mask)) | (_flags), _reg)
128 #define AR5K_REG_ENABLE_BITS(ah, _reg, _flags) \
129 ath5k_hw_reg_write(ah, ath5k_hw_reg_read(ah, _reg) | (_flags), _reg)
131 #define AR5K_REG_DISABLE_BITS(ah, _reg, _flags) \
132 ath5k_hw_reg_write(ah, ath5k_hw_reg_read(ah, _reg) & ~(_flags), _reg)
134 /* Access QCU registers per queue */
135 #define AR5K_REG_READ_Q(ah, _reg, _queue) \
136 (ath5k_hw_reg_read(ah, _reg) & (1 << _queue)) \
138 #define AR5K_REG_WRITE_Q(ah, _reg, _queue) \
139 ath5k_hw_reg_write(ah, (1 << _queue), _reg)
141 #define AR5K_Q_ENABLE_BITS(_reg, _queue) do { \
142 _reg |= 1 << _queue; \
145 #define AR5K_Q_DISABLE_BITS(_reg, _queue) do { \
146 _reg &= ~(1 << _queue); \
149 /* Used while writing initvals */
150 #define AR5K_REG_WAIT(_i) do { \
156 * Some tunable values (these should be changeable by the user)
157 * TODO: Make use of them and add more options OR use debug/configfs
159 #define AR5K_TUNE_DMA_BEACON_RESP 2
160 #define AR5K_TUNE_SW_BEACON_RESP 10
161 #define AR5K_TUNE_ADDITIONAL_SWBA_BACKOFF 0
162 #define AR5K_TUNE_MIN_TX_FIFO_THRES 1
163 #define AR5K_TUNE_MAX_TX_FIFO_THRES ((IEEE80211_MAX_FRAME_LEN / 64) + 1)
164 #define AR5K_TUNE_REGISTER_TIMEOUT 20000
165 /* Register for RSSI threshold has a mask of 0xff, so 255 seems to
166 * be the max value. */
167 #define AR5K_TUNE_RSSI_THRES 129
168 /* This must be set when setting the RSSI threshold otherwise it can
169 * prevent a reset. If AR5K_RSSI_THR is read after writing to it
170 * the BMISS_THRES will be seen as 0, seems hardware doesn't keep
171 * track of it. Max value depends on hardware. For AR5210 this is just 7.
172 * For AR5211+ this seems to be up to 255. */
173 #define AR5K_TUNE_BMISS_THRES 7
174 #define AR5K_TUNE_REGISTER_DWELL_TIME 20000
175 #define AR5K_TUNE_BEACON_INTERVAL 100
176 #define AR5K_TUNE_AIFS 2
177 #define AR5K_TUNE_AIFS_11B 2
178 #define AR5K_TUNE_AIFS_XR 0
179 #define AR5K_TUNE_CWMIN 15
180 #define AR5K_TUNE_CWMIN_11B 31
181 #define AR5K_TUNE_CWMIN_XR 3
182 #define AR5K_TUNE_CWMAX 1023
183 #define AR5K_TUNE_CWMAX_11B 1023
184 #define AR5K_TUNE_CWMAX_XR 7
185 #define AR5K_TUNE_NOISE_FLOOR -72
186 #define AR5K_TUNE_CCA_MAX_GOOD_VALUE -95
187 #define AR5K_TUNE_MAX_TXPOWER 63
188 #define AR5K_TUNE_DEFAULT_TXPOWER 25
189 #define AR5K_TUNE_TPC_TXPOWER false
190 #define ATH5K_TUNE_CALIBRATION_INTERVAL_FULL 10000 /* 10 sec */
191 #define ATH5K_TUNE_CALIBRATION_INTERVAL_ANI 1000 /* 1 sec */
192 #define ATH5K_TUNE_CALIBRATION_INTERVAL_NF 60000 /* 60 sec */
194 #define ATH5K_TX_COMPLETE_POLL_INT 3000 /* 3 sec */
196 #define AR5K_INIT_CARR_SENSE_EN 1
198 /*Swap RX/TX Descriptor for big endian archs*/
199 #if defined(__BIG_ENDIAN)
200 #define AR5K_INIT_CFG ( \
201 AR5K_CFG_SWTD | AR5K_CFG_SWRD \
204 #define AR5K_INIT_CFG 0x00000000
208 #define AR5K_INIT_CYCRSSI_THR1 2
210 /* Tx retry limit defaults from standard */
211 #define AR5K_INIT_RETRY_SHORT 7
212 #define AR5K_INIT_RETRY_LONG 4
215 #define AR5K_INIT_SLOT_TIME_TURBO 6
216 #define AR5K_INIT_SLOT_TIME_DEFAULT 9
217 #define AR5K_INIT_SLOT_TIME_HALF_RATE 13
218 #define AR5K_INIT_SLOT_TIME_QUARTER_RATE 21
219 #define AR5K_INIT_SLOT_TIME_B 20
220 #define AR5K_SLOT_TIME_MAX 0xffff
223 #define AR5K_INIT_SIFS_TURBO 6
224 #define AR5K_INIT_SIFS_DEFAULT_BG 10
225 #define AR5K_INIT_SIFS_DEFAULT_A 16
226 #define AR5K_INIT_SIFS_HALF_RATE 32
227 #define AR5K_INIT_SIFS_QUARTER_RATE 64
229 /* Used to calculate tx time for non 5/10/40MHz
231 /* It's preamble time + signal time (16 + 4) */
232 #define AR5K_INIT_OFDM_PREAMPLE_TIME 20
233 /* Preamble time for 40MHz (turbo) operation (min ?) */
234 #define AR5K_INIT_OFDM_PREAMBLE_TIME_MIN 14
235 #define AR5K_INIT_OFDM_SYMBOL_TIME 4
236 #define AR5K_INIT_OFDM_PLCP_BITS 22
238 /* Rx latency for 5 and 10MHz operation (max ?) */
239 #define AR5K_INIT_RX_LAT_MAX 63
240 /* Tx latencies from initvals (5212 only but no problem
241 * because we only tweak them on 5212) */
242 #define AR5K_INIT_TX_LAT_A 54
243 #define AR5K_INIT_TX_LAT_BG 384
244 /* Tx latency for 40MHz (turbo) operation (min ?) */
245 #define AR5K_INIT_TX_LAT_MIN 32
246 /* Default Tx/Rx latencies (same for 5211)*/
247 #define AR5K_INIT_TX_LATENCY_5210 54
248 #define AR5K_INIT_RX_LATENCY_5210 29
250 /* Tx frame to Tx data start delay */
251 #define AR5K_INIT_TXF2TXD_START_DEFAULT 14
252 #define AR5K_INIT_TXF2TXD_START_DELAY_10MHZ 12
253 #define AR5K_INIT_TXF2TXD_START_DELAY_5MHZ 13
255 /* We need to increase PHY switch and agc settling time
257 #define AR5K_SWITCH_SETTLING 5760
258 #define AR5K_SWITCH_SETTLING_TURBO 7168
260 #define AR5K_AGC_SETTLING 28
261 /* 38 on 5210 but shouldn't matter */
262 #define AR5K_AGC_SETTLING_TURBO 37
265 /* GENERIC CHIPSET DEFINITIONS */
287 * Common silicon revision/version values
290 #define AR5K_SREV_UNKNOWN 0xffff
292 #define AR5K_SREV_AR5210 0x00 /* Crete */
293 #define AR5K_SREV_AR5311 0x10 /* Maui 1 */
294 #define AR5K_SREV_AR5311A 0x20 /* Maui 2 */
295 #define AR5K_SREV_AR5311B 0x30 /* Spirit */
296 #define AR5K_SREV_AR5211 0x40 /* Oahu */
297 #define AR5K_SREV_AR5212 0x50 /* Venice */
298 #define AR5K_SREV_AR5312_R2 0x52 /* AP31 */
299 #define AR5K_SREV_AR5212_V4 0x54 /* ??? */
300 #define AR5K_SREV_AR5213 0x55 /* ??? */
301 #define AR5K_SREV_AR5312_R7 0x57 /* AP30 */
302 #define AR5K_SREV_AR2313_R8 0x58 /* AP43 */
303 #define AR5K_SREV_AR5213A 0x59 /* Hainan */
304 #define AR5K_SREV_AR2413 0x78 /* Griffin lite */
305 #define AR5K_SREV_AR2414 0x70 /* Griffin */
306 #define AR5K_SREV_AR2315_R6 0x86 /* AP51-Light */
307 #define AR5K_SREV_AR2315_R7 0x87 /* AP51-Full */
308 #define AR5K_SREV_AR5424 0x90 /* Condor */
309 #define AR5K_SREV_AR2317_R1 0x90 /* AP61-Light */
310 #define AR5K_SREV_AR2317_R2 0x91 /* AP61-Full */
311 #define AR5K_SREV_AR5413 0xa4 /* Eagle lite */
312 #define AR5K_SREV_AR5414 0xa0 /* Eagle */
313 #define AR5K_SREV_AR2415 0xb0 /* Talon */
314 #define AR5K_SREV_AR5416 0xc0 /* PCI-E */
315 #define AR5K_SREV_AR5418 0xca /* PCI-E */
316 #define AR5K_SREV_AR2425 0xe0 /* Swan */
317 #define AR5K_SREV_AR2417 0xf0 /* Nala */
319 #define AR5K_SREV_RAD_5110 0x00
320 #define AR5K_SREV_RAD_5111 0x10
321 #define AR5K_SREV_RAD_5111A 0x15
322 #define AR5K_SREV_RAD_2111 0x20
323 #define AR5K_SREV_RAD_5112 0x30
324 #define AR5K_SREV_RAD_5112A 0x35
325 #define AR5K_SREV_RAD_5112B 0x36
326 #define AR5K_SREV_RAD_2112 0x40
327 #define AR5K_SREV_RAD_2112A 0x45
328 #define AR5K_SREV_RAD_2112B 0x46
329 #define AR5K_SREV_RAD_2413 0x50
330 #define AR5K_SREV_RAD_5413 0x60
331 #define AR5K_SREV_RAD_2316 0x70 /* Cobra SoC */
332 #define AR5K_SREV_RAD_2317 0x80
333 #define AR5K_SREV_RAD_5424 0xa0 /* Mostly same as 5413 */
334 #define AR5K_SREV_RAD_2425 0xa2
335 #define AR5K_SREV_RAD_5133 0xc0
337 #define AR5K_SREV_PHY_5211 0x30
338 #define AR5K_SREV_PHY_5212 0x41
339 #define AR5K_SREV_PHY_5212A 0x42
340 #define AR5K_SREV_PHY_5212B 0x43
341 #define AR5K_SREV_PHY_2413 0x45
342 #define AR5K_SREV_PHY_5413 0x61
343 #define AR5K_SREV_PHY_2425 0x70
345 /* TODO add support to mac80211 for vendor-specific rates and modes */
348 * Some of this information is based on Documentation from:
350 * http://madwifi-project.org/wiki/ChipsetFeatures/SuperAG
352 * Modulation for Atheros' eXtended Range - range enhancing extension that is
353 * supposed to double the distance an Atheros client device can keep a
354 * connection with an Atheros access point. This is achieved by increasing
355 * the receiver sensitivity up to, -105dBm, which is about 20dB above what
356 * the 802.11 specifications demand. In addition, new (proprietary) data rates
357 * are introduced: 3, 2, 1, 0.5 and 0.25 MBit/s.
359 * Please note that can you either use XR or TURBO but you cannot use both,
360 * they are exclusive.
363 #define MODULATION_XR 0x00000200
365 * Modulation for Atheros' Turbo G and Turbo A, its supposed to provide a
366 * throughput transmission speed up to 40Mbit/s-60Mbit/s at a 108Mbit/s
367 * signaling rate achieved through the bonding of two 54Mbit/s 802.11g
368 * channels. To use this feature your Access Point must also support it.
369 * There is also a distinction between "static" and "dynamic" turbo modes:
371 * - Static: is the dumb version: devices set to this mode stick to it until
372 * the mode is turned off.
373 * - Dynamic: is the intelligent version, the network decides itself if it
374 * is ok to use turbo. As soon as traffic is detected on adjacent channels
375 * (which would get used in turbo mode), or when a non-turbo station joins
376 * the network, turbo mode won't be used until the situation changes again.
377 * Dynamic mode is achieved by Atheros' Adaptive Radio (AR) feature which
378 * monitors the used radio band in order to decide whether turbo mode may
381 * This article claims Super G sticks to bonding of channels 5 and 6 for
384 * http://www.pcworld.com/article/id,113428-page,1/article.html
386 * The channel bonding seems to be driver specific though. In addition to
387 * deciding what channels will be used, these "Turbo" modes are accomplished
388 * by also enabling the following features:
390 * - Bursting: allows multiple frames to be sent at once, rather than pausing
391 * after each frame. Bursting is a standards-compliant feature that can be
392 * used with any Access Point.
393 * - Fast frames: increases the amount of information that can be sent per
394 * frame, also resulting in a reduction of transmission overhead. It is a
395 * proprietary feature that needs to be supported by the Access Point.
396 * - Compression: data frames are compressed in real time using a Lempel Ziv
397 * algorithm. This is done transparently. Once this feature is enabled,
398 * compression and decompression takes place inside the chipset, without
399 * putting additional load on the host CPU.
402 #define MODULATION_TURBO 0x00000080
404 enum ath5k_driver_mode {
411 enum ath5k_ant_mode {
412 AR5K_ANTMODE_DEFAULT = 0, /* default antenna setup */
413 AR5K_ANTMODE_FIXED_A = 1, /* only antenna A is present */
414 AR5K_ANTMODE_FIXED_B = 2, /* only antenna B is present */
415 AR5K_ANTMODE_SINGLE_AP = 3, /* sta locked on a single ap */
416 AR5K_ANTMODE_SECTOR_AP = 4, /* AP with tx antenna set on tx desc */
417 AR5K_ANTMODE_SECTOR_STA = 5, /* STA with tx antenna set on tx desc */
418 AR5K_ANTMODE_DEBUG = 6, /* Debug mode -A -> Rx, B-> Tx- */
423 AR5K_BWMODE_DEFAULT = 0, /* 20MHz, default operation */
424 AR5K_BWMODE_5MHZ = 1, /* Quarter rate */
425 AR5K_BWMODE_10MHZ = 2, /* Half rate */
426 AR5K_BWMODE_40MHZ = 3 /* Turbo */
434 * TX Status descriptor
436 struct ath5k_tx_status {
448 #define AR5K_TXSTAT_ALTRATE 0x80
449 #define AR5K_TXERR_XRETRY 0x01
450 #define AR5K_TXERR_FILT 0x02
451 #define AR5K_TXERR_FIFO 0x04
454 * enum ath5k_tx_queue - Queue types used to classify tx queues.
455 * @AR5K_TX_QUEUE_INACTIVE: q is unused -- see ath5k_hw_release_tx_queue
456 * @AR5K_TX_QUEUE_DATA: A normal data queue
457 * @AR5K_TX_QUEUE_XR_DATA: An XR-data queue
458 * @AR5K_TX_QUEUE_BEACON: The beacon queue
459 * @AR5K_TX_QUEUE_CAB: The after-beacon queue
460 * @AR5K_TX_QUEUE_UAPSD: Unscheduled Automatic Power Save Delivery queue
462 enum ath5k_tx_queue {
463 AR5K_TX_QUEUE_INACTIVE = 0,
465 AR5K_TX_QUEUE_XR_DATA,
466 AR5K_TX_QUEUE_BEACON,
471 #define AR5K_NUM_TX_QUEUES 10
472 #define AR5K_NUM_TX_QUEUES_NOQCU 2
475 * Queue syb-types to classify normal data queues.
476 * These are the 4 Access Categories as defined in
477 * WME spec. 0 is the lowest priority and 4 is the
478 * highest. Normal data that hasn't been classified
479 * goes to the Best Effort AC.
481 enum ath5k_tx_queue_subtype {
482 AR5K_WME_AC_BK = 0, /*Background traffic*/
483 AR5K_WME_AC_BE, /*Best-effort (normal) traffic*/
484 AR5K_WME_AC_VI, /*Video traffic*/
485 AR5K_WME_AC_VO, /*Voice traffic*/
489 * Queue ID numbers as returned by the hw functions, each number
490 * represents a hw queue. If hw does not support hw queues
491 * (eg 5210) all data goes in one queue. These match
492 * d80211 definitions (net80211/MadWiFi don't use them).
494 enum ath5k_tx_queue_id {
495 AR5K_TX_QUEUE_ID_NOQCU_DATA = 0,
496 AR5K_TX_QUEUE_ID_NOQCU_BEACON = 1,
497 AR5K_TX_QUEUE_ID_DATA_MIN = 0, /*IEEE80211_TX_QUEUE_DATA0*/
498 AR5K_TX_QUEUE_ID_DATA_MAX = 3, /*IEEE80211_TX_QUEUE_DATA3*/
499 AR5K_TX_QUEUE_ID_DATA_SVP = 5, /*IEEE80211_TX_QUEUE_SVP - Spectralink Voice Protocol*/
500 AR5K_TX_QUEUE_ID_CAB = 6, /*IEEE80211_TX_QUEUE_AFTER_BEACON*/
501 AR5K_TX_QUEUE_ID_BEACON = 7, /*IEEE80211_TX_QUEUE_BEACON*/
502 AR5K_TX_QUEUE_ID_UAPSD = 8,
503 AR5K_TX_QUEUE_ID_XR_DATA = 9,
507 * Flags to set hw queue's parameters...
509 #define AR5K_TXQ_FLAG_TXOKINT_ENABLE 0x0001 /* Enable TXOK interrupt */
510 #define AR5K_TXQ_FLAG_TXERRINT_ENABLE 0x0002 /* Enable TXERR interrupt */
511 #define AR5K_TXQ_FLAG_TXEOLINT_ENABLE 0x0004 /* Enable TXEOL interrupt -not used- */
512 #define AR5K_TXQ_FLAG_TXDESCINT_ENABLE 0x0008 /* Enable TXDESC interrupt -not used- */
513 #define AR5K_TXQ_FLAG_TXURNINT_ENABLE 0x0010 /* Enable TXURN interrupt */
514 #define AR5K_TXQ_FLAG_CBRORNINT_ENABLE 0x0020 /* Enable CBRORN interrupt */
515 #define AR5K_TXQ_FLAG_CBRURNINT_ENABLE 0x0040 /* Enable CBRURN interrupt */
516 #define AR5K_TXQ_FLAG_QTRIGINT_ENABLE 0x0080 /* Enable QTRIG interrupt */
517 #define AR5K_TXQ_FLAG_TXNOFRMINT_ENABLE 0x0100 /* Enable TXNOFRM interrupt */
518 #define AR5K_TXQ_FLAG_BACKOFF_DISABLE 0x0200 /* Disable random post-backoff */
519 #define AR5K_TXQ_FLAG_RDYTIME_EXP_POLICY_ENABLE 0x0300 /* Enable ready time expiry policy (?)*/
520 #define AR5K_TXQ_FLAG_FRAG_BURST_BACKOFF_ENABLE 0x0800 /* Enable backoff while bursting */
521 #define AR5K_TXQ_FLAG_POST_FR_BKOFF_DIS 0x1000 /* Disable backoff while bursting */
522 #define AR5K_TXQ_FLAG_COMPRESSION_ENABLE 0x2000 /* Enable hw compression -not implemented-*/
525 * Data transmit queue state. One of these exists for each
526 * hardware transmit queue. Packets sent to us from above
527 * are assigned to queues based on their priority. Not all
528 * devices support a complete set of hardware transmit queues.
529 * For those devices the array sc_ac2q will map multiple
530 * priorities to fewer hardware queues (typically all to one
534 unsigned int qnum; /* hardware q number */
535 u32 *link; /* link ptr in last TX desc */
536 struct list_head q; /* transmit queue */
537 spinlock_t lock; /* lock on q and link */
539 int txq_len; /* number of queued buffers */
540 int txq_max; /* max allowed num of queued buffers */
542 unsigned int txq_stuck; /* informational counter */
546 * A struct to hold tx queue's parameters
548 struct ath5k_txq_info {
549 enum ath5k_tx_queue tqi_type;
550 enum ath5k_tx_queue_subtype tqi_subtype;
551 u16 tqi_flags; /* Tx queue flags (see above) */
552 u8 tqi_aifs; /* Arbitrated Interframe Space */
553 u16 tqi_cw_min; /* Minimum Contention Window */
554 u16 tqi_cw_max; /* Maximum Contention Window */
555 u32 tqi_cbr_period; /* Constant bit rate period */
556 u32 tqi_cbr_overflow_limit;
558 u32 tqi_ready_time; /* Time queue waits after an event */
562 * Transmit packet types.
563 * used on tx control descriptor
565 enum ath5k_pkt_type {
566 AR5K_PKT_TYPE_NORMAL = 0,
567 AR5K_PKT_TYPE_ATIM = 1,
568 AR5K_PKT_TYPE_PSPOLL = 2,
569 AR5K_PKT_TYPE_BEACON = 3,
570 AR5K_PKT_TYPE_PROBE_RESP = 4,
571 AR5K_PKT_TYPE_PIFS = 5,
575 * TX power and TPC settings
577 #define AR5K_TXPOWER_OFDM(_r, _v) ( \
578 ((0 & 1) << ((_v) + 6)) | \
579 (((ah->ah_txpower.txp_rates_power_table[(_r)]) & 0x3f) << (_v)) \
582 #define AR5K_TXPOWER_CCK(_r, _v) ( \
583 (ah->ah_txpower.txp_rates_power_table[(_r)] & 0x3f) << (_v) \
587 * DMA size definitions (2^(n+2))
606 * RX Status descriptor
608 struct ath5k_rx_status {
620 #define AR5K_RXERR_CRC 0x01
621 #define AR5K_RXERR_PHY 0x02
622 #define AR5K_RXERR_FIFO 0x04
623 #define AR5K_RXERR_DECRYPT 0x08
624 #define AR5K_RXERR_MIC 0x10
625 #define AR5K_RXKEYIX_INVALID ((u8) -1)
626 #define AR5K_TXKEYIX_INVALID ((u32) -1)
629 /**************************\
630 BEACON TIMERS DEFINITIONS
631 \**************************/
633 #define AR5K_BEACON_PERIOD 0x0000ffff
634 #define AR5K_BEACON_ENA 0x00800000 /*enable beacon xmit*/
635 #define AR5K_BEACON_RESET_TSF 0x01000000 /*force a TSF reset*/
639 * TSF to TU conversion:
641 * TSF is a 64bit value in usec (microseconds).
642 * TU is a 32bit value and defined by IEEE802.11 (page 6) as "A measurement of
643 * time equal to 1024 usec", so it's roughly milliseconds (usec / 1024).
645 #define TSF_TO_TU(_tsf) (u32)((_tsf) >> 10)
648 /*******************************\
649 GAIN OPTIMIZATION DEFINITIONS
650 \*******************************/
653 AR5K_RFGAIN_INACTIVE = 0,
655 AR5K_RFGAIN_READ_REQUESTED,
656 AR5K_RFGAIN_NEED_CHANGE,
669 /********************\
671 \********************/
673 #define AR5K_SLOT_TIME_9 396
674 #define AR5K_SLOT_TIME_20 880
675 #define AR5K_SLOT_TIME_MAX 0xffff
678 * The following structure is used to map 2GHz channels to
679 * 5GHz Atheros channels.
682 struct ath5k_athchan_2ghz {
693 * Seems the ar5xxx hardware supports up to 32 rates, indexed by 1-32.
695 * The rate code is used to get the RX rate or set the TX rate on the
696 * hardware descriptors. It is also used for internal modulation control
699 * This is the hardware rate map we are aware of:
701 * rate_code 0x01 0x02 0x03 0x04 0x05 0x06 0x07 0x08
702 * rate_kbps 3000 1000 ? ? ? 2000 500 48000
704 * rate_code 0x09 0x0A 0x0B 0x0C 0x0D 0x0E 0x0F 0x10
705 * rate_kbps 24000 12000 6000 54000 36000 18000 9000 ?
707 * rate_code 17 18 19 20 21 22 23 24
708 * rate_kbps ? ? ? ? ? ? ? 11000
710 * rate_code 25 26 27 28 29 30 31 32
711 * rate_kbps 5500 2000 1000 11000S 5500S 2000S ? ?
713 * "S" indicates CCK rates with short preamble.
715 * AR5211 has different rate codes for CCK (802.11B) rates. It only uses the
716 * lowest 4 bits, so they are the same as below with a 0xF mask.
717 * (0xB, 0xA, 0x9 and 0x8 for 1M, 2M, 5.5M and 11M).
718 * We handle this in ath5k_setup_bands().
720 #define AR5K_MAX_RATES 32
723 #define ATH5K_RATE_CODE_1M 0x1B
724 #define ATH5K_RATE_CODE_2M 0x1A
725 #define ATH5K_RATE_CODE_5_5M 0x19
726 #define ATH5K_RATE_CODE_11M 0x18
728 #define ATH5K_RATE_CODE_6M 0x0B
729 #define ATH5K_RATE_CODE_9M 0x0F
730 #define ATH5K_RATE_CODE_12M 0x0A
731 #define ATH5K_RATE_CODE_18M 0x0E
732 #define ATH5K_RATE_CODE_24M 0x09
733 #define ATH5K_RATE_CODE_36M 0x0D
734 #define ATH5K_RATE_CODE_48M 0x08
735 #define ATH5K_RATE_CODE_54M 0x0C
737 #define ATH5K_RATE_CODE_XR_500K 0x07
738 #define ATH5K_RATE_CODE_XR_1M 0x02
739 #define ATH5K_RATE_CODE_XR_2M 0x06
740 #define ATH5K_RATE_CODE_XR_3M 0x01
742 /* adding this flag to rate_code enables short preamble */
743 #define AR5K_SET_SHORT_PREAMBLE 0x04
749 #define AR5K_KEYCACHE_SIZE 8
750 extern int ath5k_modparam_nohwcrypt;
752 /***********************\
753 HW RELATED DEFINITIONS
754 \***********************/
759 #define AR5K_RSSI_EP_MULTIPLIER (1 << 7)
761 #define AR5K_ASSERT_ENTRY(_e, _s) do { \
767 * Hardware interrupt abstraction
771 * enum ath5k_int - Hardware interrupt masks helpers
773 * @AR5K_INT_RX: mask to identify received frame interrupts, of type
774 * AR5K_ISR_RXOK or AR5K_ISR_RXERR
775 * @AR5K_INT_RXDESC: Request RX descriptor/Read RX descriptor (?)
776 * @AR5K_INT_RXNOFRM: No frame received (?)
777 * @AR5K_INT_RXEOL: received End Of List for VEOL (Virtual End Of List). The
778 * Queue Control Unit (QCU) signals an EOL interrupt only if a descriptor's
779 * LinkPtr is NULL. For more details, refer to:
780 * http://www.freepatentsonline.com/20030225739.html
781 * @AR5K_INT_RXORN: Indicates we got RX overrun (eg. no more descriptors).
782 * Note that Rx overrun is not always fatal, on some chips we can continue
783 * operation without resetting the card, that's why int_fatal is not
784 * common for all chips.
785 * @AR5K_INT_TX: mask to identify received frame interrupts, of type
786 * AR5K_ISR_TXOK or AR5K_ISR_TXERR
787 * @AR5K_INT_TXDESC: Request TX descriptor/Read TX status descriptor (?)
788 * @AR5K_INT_TXURN: received when we should increase the TX trigger threshold
789 * We currently do increments on interrupt by
790 * (AR5K_TUNE_MAX_TX_FIFO_THRES - current_trigger_level) / 2
791 * @AR5K_INT_MIB: Indicates the either Management Information Base counters or
792 * one of the PHY error counters reached the maximum value and should be
794 * @AR5K_INT_RXPHY: RX PHY Error
795 * @AR5K_INT_RXKCM: RX Key cache miss
796 * @AR5K_INT_SWBA: SoftWare Beacon Alert - indicates its time to send a
797 * beacon that must be handled in software. The alternative is if you
798 * have VEOL support, in that case you let the hardware deal with things.
799 * @AR5K_INT_BMISS: If in STA mode this indicates we have stopped seeing
800 * beacons from the AP have associated with, we should probably try to
801 * reassociate. When in IBSS mode this might mean we have not received
802 * any beacons from any local stations. Note that every station in an
803 * IBSS schedules to send beacons at the Target Beacon Transmission Time
804 * (TBTT) with a random backoff.
805 * @AR5K_INT_BNR: Beacon Not Ready interrupt - ??
806 * @AR5K_INT_GPIO: GPIO interrupt is used for RF Kill, disabled for now
807 * until properly handled
808 * @AR5K_INT_FATAL: Fatal errors were encountered, typically caused by DMA
809 * errors. These types of errors we can enable seem to be of type
810 * AR5K_SIMR2_MCABT, AR5K_SIMR2_SSERR and AR5K_SIMR2_DPERR.
811 * @AR5K_INT_GLOBAL: Used to clear and set the IER
812 * @AR5K_INT_NOCARD: signals the card has been removed
813 * @AR5K_INT_COMMON: common interrupts shared among MACs with the same
816 * These are mapped to take advantage of some common bits
817 * between the MACs, to be able to set intr properties
818 * easier. Some of them are not used yet inside hw.c. Most map
819 * to the respective hw interrupt value as they are common among different
823 AR5K_INT_RXOK = 0x00000001,
824 AR5K_INT_RXDESC = 0x00000002,
825 AR5K_INT_RXERR = 0x00000004,
826 AR5K_INT_RXNOFRM = 0x00000008,
827 AR5K_INT_RXEOL = 0x00000010,
828 AR5K_INT_RXORN = 0x00000020,
829 AR5K_INT_TXOK = 0x00000040,
830 AR5K_INT_TXDESC = 0x00000080,
831 AR5K_INT_TXERR = 0x00000100,
832 AR5K_INT_TXNOFRM = 0x00000200,
833 AR5K_INT_TXEOL = 0x00000400,
834 AR5K_INT_TXURN = 0x00000800,
835 AR5K_INT_MIB = 0x00001000,
836 AR5K_INT_SWI = 0x00002000,
837 AR5K_INT_RXPHY = 0x00004000,
838 AR5K_INT_RXKCM = 0x00008000,
839 AR5K_INT_SWBA = 0x00010000,
840 AR5K_INT_BRSSI = 0x00020000,
841 AR5K_INT_BMISS = 0x00040000,
842 AR5K_INT_FATAL = 0x00080000, /* Non common */
843 AR5K_INT_BNR = 0x00100000, /* Non common */
844 AR5K_INT_TIM = 0x00200000, /* Non common */
845 AR5K_INT_DTIM = 0x00400000, /* Non common */
846 AR5K_INT_DTIM_SYNC = 0x00800000, /* Non common */
847 AR5K_INT_GPIO = 0x01000000,
848 AR5K_INT_BCN_TIMEOUT = 0x02000000, /* Non common */
849 AR5K_INT_CAB_TIMEOUT = 0x04000000, /* Non common */
850 AR5K_INT_RX_DOPPLER = 0x08000000, /* Non common */
851 AR5K_INT_QCBRORN = 0x10000000, /* Non common */
852 AR5K_INT_QCBRURN = 0x20000000, /* Non common */
853 AR5K_INT_QTRIG = 0x40000000, /* Non common */
854 AR5K_INT_GLOBAL = 0x80000000,
856 AR5K_INT_TX_ALL = AR5K_INT_TXOK
862 AR5K_INT_RX_ALL = AR5K_INT_RXOK
869 AR5K_INT_COMMON = AR5K_INT_RXOK
891 AR5K_INT_NOCARD = 0xffffffff
894 /* mask which calibration is active at the moment */
895 enum ath5k_calibration_mask {
896 AR5K_CALIBRATION_FULL = 0x01,
897 AR5K_CALIBRATION_SHORT = 0x02,
898 AR5K_CALIBRATION_ANI = 0x04,
904 enum ath5k_power_mode {
905 AR5K_PM_UNDEFINED = 0,
909 AR5K_PM_NETWORK_SLEEP,
913 * These match net80211 definitions (not used in
915 * TODO: Clean this up
917 #define AR5K_LED_INIT 0 /*IEEE80211_S_INIT*/
918 #define AR5K_LED_SCAN 1 /*IEEE80211_S_SCAN*/
919 #define AR5K_LED_AUTH 2 /*IEEE80211_S_AUTH*/
920 #define AR5K_LED_ASSOC 3 /*IEEE80211_S_ASSOC*/
921 #define AR5K_LED_RUN 4 /*IEEE80211_S_RUN*/
923 /* GPIO-controlled software LED */
924 #define AR5K_SOFTLED_PIN 0
925 #define AR5K_SOFTLED_ON 0
926 #define AR5K_SOFTLED_OFF 1
929 /* XXX: we *may* move cap_range stuff to struct wiphy */
930 struct ath5k_capabilities {
932 * Supported PHY modes
933 * (ie. AR5K_MODE_11A, AR5K_MODE_11B, ...)
935 DECLARE_BITMAP(cap_mode, AR5K_MODE_MAX);
938 * Frequency range (without regulation restrictions)
948 * Values stored in the EEPROM (some of them...)
950 struct ath5k_eeprom_info cap_eeprom;
959 bool cap_has_phyerr_counters;
962 /* size of noise floor history (keep it a power of two) */
963 #define ATH5K_NF_CAL_HIST_MAX 8
964 struct ath5k_nfcal_hist {
965 s16 index; /* current index into nfval */
966 s16 nfval[ATH5K_NF_CAL_HIST_MAX]; /* last few noise floors */
969 #define ATH5K_LED_MAX_NAME_LEN 31
972 * State for LED triggers
975 char name[ATH5K_LED_MAX_NAME_LEN + 1]; /* name of the LED in sysfs */
976 struct ath5k_hw *ah; /* driver state */
977 struct led_classdev led_dev; /* led classdev */
981 struct ath5k_rfkill {
982 /* GPIO PIN for rfkill */
984 /* polarity of rfkill GPIO PIN */
986 /* RFKILL toggle tasklet */
987 struct tasklet_struct toggleq;
991 struct ath5k_statistics {
993 unsigned int antenna_rx[5]; /* frames count per antenna RX */
994 unsigned int antenna_tx[5]; /* frames count per antenna TX */
997 unsigned int rx_all_count; /* all RX frames, including errors */
998 unsigned int tx_all_count; /* all TX frames, including errors */
999 unsigned int rx_bytes_count; /* all RX bytes, including errored pkts
1000 * and the MAC headers for each packet
1002 unsigned int tx_bytes_count; /* all TX bytes, including errored pkts
1003 * and the MAC headers and padding for
1006 unsigned int rxerr_crc;
1007 unsigned int rxerr_phy;
1008 unsigned int rxerr_phy_code[32];
1009 unsigned int rxerr_fifo;
1010 unsigned int rxerr_decrypt;
1011 unsigned int rxerr_mic;
1012 unsigned int rxerr_proc;
1013 unsigned int rxerr_jumbo;
1014 unsigned int txerr_retry;
1015 unsigned int txerr_fifo;
1016 unsigned int txerr_filt;
1019 unsigned int ack_fail;
1020 unsigned int rts_fail;
1021 unsigned int rts_ok;
1022 unsigned int fcs_error;
1023 unsigned int beacons;
1025 unsigned int mib_intr;
1026 unsigned int rxorn_intr;
1027 unsigned int rxeol_intr;
1034 #define AR5K_MAX_GPIO 10
1035 #define AR5K_MAX_RF_BANKS 8
1038 #define ATH_CHAN_MAX (26 + 26 + 26 + 200 + 200)
1040 #define ATH_CHAN_MAX (14 + 14 + 14 + 252 + 20)
1043 #define ATH_RXBUF 40 /* number of RX buffers */
1044 #define ATH_TXBUF 200 /* number of TX buffers */
1045 #define ATH_BCBUF 4 /* number of beacon buffers */
1046 #define ATH5K_TXQ_LEN_MAX (ATH_TXBUF / 4) /* bufs per queue */
1047 #define ATH5K_TXQ_LEN_LOW (ATH5K_TXQ_LEN_MAX / 2) /* low mark */
1049 /* Driver state associated with an instance of a device */
1051 struct ath_common common;
1053 struct pci_dev *pdev;
1054 struct device *dev; /* for dma mapping */
1057 void __iomem *iobase; /* address of the device */
1058 struct mutex lock; /* dev-level lock */
1059 struct ieee80211_hw *hw; /* IEEE 802.11 common */
1060 struct ieee80211_supported_band sbands[IEEE80211_NUM_BANDS];
1061 struct ieee80211_channel channels[ATH_CHAN_MAX];
1062 struct ieee80211_rate rates[IEEE80211_NUM_BANDS][AR5K_MAX_RATES];
1063 s8 rate_idx[IEEE80211_NUM_BANDS][AR5K_MAX_RATES];
1064 enum nl80211_iftype opmode;
1066 #ifdef CONFIG_ATH5K_DEBUG
1067 struct ath5k_dbg_info debug; /* debug info */
1068 #endif /* CONFIG_ATH5K_DEBUG */
1070 struct ath5k_buf *bufptr; /* allocated buffer ptr */
1071 struct ath5k_desc *desc; /* TX/RX descriptors */
1072 dma_addr_t desc_daddr; /* DMA (physical) address */
1073 size_t desc_len; /* size of TX/RX descriptors */
1075 DECLARE_BITMAP(status, 6);
1076 #define ATH_STAT_INVALID 0 /* disable hardware accesses */
1077 #define ATH_STAT_MRRETRY 1 /* multi-rate retry support */
1078 #define ATH_STAT_PROMISC 2
1079 #define ATH_STAT_LEDSOFT 3 /* enable LED gpio status */
1080 #define ATH_STAT_STARTED 4 /* opened & irqs enabled */
1081 #define ATH_STAT_2G_DISABLED 5 /* multiband radio without 2G */
1083 unsigned int filter_flags; /* HW flags, AR5K_RX_FILTER_* */
1084 struct ieee80211_channel *curchan; /* current h/w channel */
1088 enum ath5k_int imask; /* interrupt mask copy */
1091 bool rx_pending; /* rx tasklet pending */
1092 bool tx_pending; /* tx tasklet pending */
1094 u8 bssidmask[ETH_ALEN];
1096 unsigned int led_pin, /* GPIO pin for driving LED */
1097 led_on; /* pin setting for LED on */
1099 struct work_struct reset_work; /* deferred chip reset */
1101 struct list_head rxbuf; /* receive buffer */
1102 spinlock_t rxbuflock;
1103 u32 *rxlink; /* link ptr in last RX desc */
1104 struct tasklet_struct rxtq; /* rx intr tasklet */
1105 struct ath5k_led rx_led; /* rx led */
1107 struct list_head txbuf; /* transmit buffer */
1108 spinlock_t txbuflock;
1109 unsigned int txbuf_len; /* buf count in txbuf list */
1110 struct ath5k_txq txqs[AR5K_NUM_TX_QUEUES]; /* tx queues */
1111 struct tasklet_struct txtq; /* tx intr tasklet */
1112 struct ath5k_led tx_led; /* tx led */
1114 struct ath5k_rfkill rf_kill;
1116 struct tasklet_struct calib; /* calibration tasklet */
1118 spinlock_t block; /* protects beacon */
1119 struct tasklet_struct beacontq; /* beacon intr tasklet */
1120 struct list_head bcbuf; /* beacon buffer */
1121 struct ieee80211_vif *bslot[ATH_BCBUF];
1124 unsigned int bhalq, /* SW q for outgoing beacons */
1125 bmisscount, /* missed beacon transmits */
1126 bintval, /* beacon interval in TU */
1128 unsigned int nexttbtt; /* next beacon time in TU */
1129 struct ath5k_txq *cabq; /* content after beacon */
1131 int power_level; /* Requested tx power in dBm */
1132 bool assoc; /* associate state */
1133 bool enable_beacon; /* true if beacons are on */
1135 struct ath5k_statistics stats;
1137 struct ath5k_ani_state ani_state;
1138 struct tasklet_struct ani_tasklet; /* ANI calibration */
1140 struct delayed_work tx_complete_work;
1142 struct survey_info survey; /* collected survey info */
1144 enum ath5k_int ah_imr;
1146 struct ieee80211_channel *ah_current_channel;
1147 bool ah_calibration;
1148 bool ah_single_chip;
1150 enum ath5k_version ah_version;
1151 enum ath5k_radio ah_radio;
1154 u16 ah_phy_revision;
1155 u16 ah_radio_5ghz_revision;
1156 u16 ah_radio_2ghz_revision;
1158 #define ah_modes ah_capabilities.cap_mode
1159 #define ah_ee_version ah_capabilities.cap_eeprom.ee_version
1164 u32 ah_use_32khz_clock;
1166 u8 ah_coverage_class;
1167 bool ah_ack_bitrate_high;
1171 /* Antenna Control */
1172 u32 ah_ant_ctl[AR5K_EEPROM_N_MODES][AR5K_ANT_MAX];
1177 struct ath5k_capabilities ah_capabilities;
1179 struct ath5k_txq_info ah_txq[AR5K_NUM_TX_QUEUES];
1181 u32 ah_txq_imr_txok;
1182 u32 ah_txq_imr_txerr;
1183 u32 ah_txq_imr_txurn;
1184 u32 ah_txq_imr_txdesc;
1185 u32 ah_txq_imr_txeol;
1186 u32 ah_txq_imr_cbrorn;
1187 u32 ah_txq_imr_cbrurn;
1188 u32 ah_txq_imr_qtrig;
1189 u32 ah_txq_imr_nofrm;
1192 size_t ah_rf_banks_size;
1193 size_t ah_rf_regs_count;
1194 struct ath5k_gain ah_gain;
1195 u8 ah_offset[AR5K_MAX_RF_BANKS];
1199 /* Temporary tables used for interpolation */
1200 u8 tmpL[AR5K_EEPROM_N_PD_GAINS]
1201 [AR5K_EEPROM_POWER_TABLE_SIZE];
1202 u8 tmpR[AR5K_EEPROM_N_PD_GAINS]
1203 [AR5K_EEPROM_POWER_TABLE_SIZE];
1204 u8 txp_pd_table[AR5K_EEPROM_POWER_TABLE_SIZE * 2];
1205 u16 txp_rates_power_table[AR5K_MAX_RATES];
1208 /* Values in 0.25dB units */
1212 /* Values in 0.5dB units */
1215 s16 txp_cck_ofdm_gainf_delta;
1216 /* Value in dB units */
1217 s16 txp_cck_ofdm_pwr_delta;
1221 struct ath5k_nfcal_hist ah_nfcal_hist;
1223 /* average beacon RSSI in our BSS (used by ANI) */
1224 struct ewma ah_beacon_rssi_avg;
1226 /* noise floor from last periodic calibration */
1229 /* Calibration timestamp */
1230 unsigned long ah_cal_next_full;
1231 unsigned long ah_cal_next_ani;
1232 unsigned long ah_cal_next_nf;
1234 /* Calibration mask */
1240 int (*ah_setup_tx_desc)(struct ath5k_hw *, struct ath5k_desc *,
1241 unsigned int, unsigned int, int, enum ath5k_pkt_type,
1242 unsigned int, unsigned int, unsigned int, unsigned int,
1243 unsigned int, unsigned int, unsigned int, unsigned int);
1244 int (*ah_proc_tx_desc)(struct ath5k_hw *, struct ath5k_desc *,
1245 struct ath5k_tx_status *);
1246 int (*ah_proc_rx_desc)(struct ath5k_hw *, struct ath5k_desc *,
1247 struct ath5k_rx_status *);
1250 struct ath_bus_ops {
1251 enum ath_bus_type ath_bus_type;
1252 void (*read_cachesize)(struct ath_common *common, int *csz);
1253 bool (*eeprom_read)(struct ath_common *common, u32 off, u16 *data);
1254 int (*eeprom_read_mac)(struct ath5k_hw *ah, u8 *mac);
1260 extern const struct ieee80211_ops ath5k_hw_ops;
1262 /* Initialization and detach functions */
1263 int ath5k_hw_init(struct ath5k_hw *ah);
1264 void ath5k_hw_deinit(struct ath5k_hw *ah);
1266 int ath5k_sysfs_register(struct ath5k_hw *ah);
1267 void ath5k_sysfs_unregister(struct ath5k_hw *ah);
1269 /*Chip id helper functions */
1270 int ath5k_hw_read_srev(struct ath5k_hw *ah);
1273 int ath5k_init_leds(struct ath5k_hw *ah);
1274 void ath5k_led_enable(struct ath5k_hw *ah);
1275 void ath5k_led_off(struct ath5k_hw *ah);
1276 void ath5k_unregister_leds(struct ath5k_hw *ah);
1279 /* Reset Functions */
1280 int ath5k_hw_nic_wakeup(struct ath5k_hw *ah, struct ieee80211_channel *channel);
1281 int ath5k_hw_on_hold(struct ath5k_hw *ah);
1282 int ath5k_hw_reset(struct ath5k_hw *ah, enum nl80211_iftype op_mode,
1283 struct ieee80211_channel *channel, bool fast, bool skip_pcu);
1284 int ath5k_hw_register_timeout(struct ath5k_hw *ah, u32 reg, u32 flag, u32 val,
1286 /* Power management functions */
1289 /* Clock rate related functions */
1290 unsigned int ath5k_hw_htoclock(struct ath5k_hw *ah, unsigned int usec);
1291 unsigned int ath5k_hw_clocktoh(struct ath5k_hw *ah, unsigned int clock);
1292 void ath5k_hw_set_clockrate(struct ath5k_hw *ah);
1295 /* DMA Related Functions */
1296 void ath5k_hw_start_rx_dma(struct ath5k_hw *ah);
1297 u32 ath5k_hw_get_rxdp(struct ath5k_hw *ah);
1298 int ath5k_hw_set_rxdp(struct ath5k_hw *ah, u32 phys_addr);
1299 int ath5k_hw_start_tx_dma(struct ath5k_hw *ah, unsigned int queue);
1300 int ath5k_hw_stop_beacon_queue(struct ath5k_hw *ah, unsigned int queue);
1301 u32 ath5k_hw_get_txdp(struct ath5k_hw *ah, unsigned int queue);
1302 int ath5k_hw_set_txdp(struct ath5k_hw *ah, unsigned int queue,
1304 int ath5k_hw_update_tx_triglevel(struct ath5k_hw *ah, bool increase);
1305 /* Interrupt handling */
1306 bool ath5k_hw_is_intr_pending(struct ath5k_hw *ah);
1307 int ath5k_hw_get_isr(struct ath5k_hw *ah, enum ath5k_int *interrupt_mask);
1308 enum ath5k_int ath5k_hw_set_imr(struct ath5k_hw *ah, enum ath5k_int new_mask);
1309 void ath5k_hw_update_mib_counters(struct ath5k_hw *ah);
1310 /* Init/Stop functions */
1311 void ath5k_hw_dma_init(struct ath5k_hw *ah);
1312 int ath5k_hw_dma_stop(struct ath5k_hw *ah);
1314 /* EEPROM access functions */
1315 int ath5k_eeprom_init(struct ath5k_hw *ah);
1316 void ath5k_eeprom_detach(struct ath5k_hw *ah);
1319 /* Protocol Control Unit Functions */
1321 int ath5k_hw_get_frame_duration(struct ath5k_hw *ah,
1322 int len, struct ieee80211_rate *rate, bool shortpre);
1323 unsigned int ath5k_hw_get_default_slottime(struct ath5k_hw *ah);
1324 unsigned int ath5k_hw_get_default_sifs(struct ath5k_hw *ah);
1325 int ath5k_hw_set_opmode(struct ath5k_hw *ah, enum nl80211_iftype opmode);
1326 void ath5k_hw_set_coverage_class(struct ath5k_hw *ah, u8 coverage_class);
1327 /* RX filter control*/
1328 int ath5k_hw_set_lladdr(struct ath5k_hw *ah, const u8 *mac);
1329 void ath5k_hw_set_bssid(struct ath5k_hw *ah);
1330 void ath5k_hw_set_bssid_mask(struct ath5k_hw *ah, const u8 *mask);
1331 void ath5k_hw_set_mcast_filter(struct ath5k_hw *ah, u32 filter0, u32 filter1);
1332 u32 ath5k_hw_get_rx_filter(struct ath5k_hw *ah);
1333 void ath5k_hw_set_rx_filter(struct ath5k_hw *ah, u32 filter);
1334 /* Receive (DRU) start/stop functions */
1335 void ath5k_hw_start_rx_pcu(struct ath5k_hw *ah);
1336 void ath5k_hw_stop_rx_pcu(struct ath5k_hw *ah);
1337 /* Beacon control functions */
1338 u64 ath5k_hw_get_tsf64(struct ath5k_hw *ah);
1339 void ath5k_hw_set_tsf64(struct ath5k_hw *ah, u64 tsf64);
1340 void ath5k_hw_reset_tsf(struct ath5k_hw *ah);
1341 void ath5k_hw_init_beacon(struct ath5k_hw *ah, u32 next_beacon, u32 interval);
1342 bool ath5k_hw_check_beacon_timers(struct ath5k_hw *ah, int intval);
1344 void ath5k_hw_pcu_init(struct ath5k_hw *ah, enum nl80211_iftype op_mode,
1347 /* Queue Control Unit, DFS Control Unit Functions */
1348 int ath5k_hw_get_tx_queueprops(struct ath5k_hw *ah, int queue,
1349 struct ath5k_txq_info *queue_info);
1350 int ath5k_hw_set_tx_queueprops(struct ath5k_hw *ah, int queue,
1351 const struct ath5k_txq_info *queue_info);
1352 int ath5k_hw_setup_tx_queue(struct ath5k_hw *ah,
1353 enum ath5k_tx_queue queue_type,
1354 struct ath5k_txq_info *queue_info);
1355 void ath5k_hw_set_tx_retry_limits(struct ath5k_hw *ah,
1356 unsigned int queue);
1357 u32 ath5k_hw_num_tx_pending(struct ath5k_hw *ah, unsigned int queue);
1358 void ath5k_hw_release_tx_queue(struct ath5k_hw *ah, unsigned int queue);
1359 int ath5k_hw_reset_tx_queue(struct ath5k_hw *ah, unsigned int queue);
1360 int ath5k_hw_set_ifs_intervals(struct ath5k_hw *ah, unsigned int slot_time);
1362 int ath5k_hw_init_queues(struct ath5k_hw *ah);
1364 /* Hardware Descriptor Functions */
1365 int ath5k_hw_init_desc_functions(struct ath5k_hw *ah);
1366 int ath5k_hw_setup_rx_desc(struct ath5k_hw *ah, struct ath5k_desc *desc,
1367 u32 size, unsigned int flags);
1368 int ath5k_hw_setup_mrr_tx_desc(struct ath5k_hw *ah, struct ath5k_desc *desc,
1369 unsigned int tx_rate1, u_int tx_tries1, u_int tx_rate2,
1370 u_int tx_tries2, unsigned int tx_rate3, u_int tx_tries3);
1373 /* GPIO Functions */
1374 void ath5k_hw_set_ledstate(struct ath5k_hw *ah, unsigned int state);
1375 int ath5k_hw_set_gpio_input(struct ath5k_hw *ah, u32 gpio);
1376 int ath5k_hw_set_gpio_output(struct ath5k_hw *ah, u32 gpio);
1377 u32 ath5k_hw_get_gpio(struct ath5k_hw *ah, u32 gpio);
1378 int ath5k_hw_set_gpio(struct ath5k_hw *ah, u32 gpio, u32 val);
1379 void ath5k_hw_set_gpio_intr(struct ath5k_hw *ah, unsigned int gpio,
1380 u32 interrupt_level);
1383 /* RFkill Functions */
1384 void ath5k_rfkill_hw_start(struct ath5k_hw *ah);
1385 void ath5k_rfkill_hw_stop(struct ath5k_hw *ah);
1388 /* Misc functions TODO: Cleanup */
1389 int ath5k_hw_set_capabilities(struct ath5k_hw *ah);
1390 int ath5k_hw_enable_pspoll(struct ath5k_hw *ah, u8 *bssid, u16 assoc_id);
1391 int ath5k_hw_disable_pspoll(struct ath5k_hw *ah);
1394 /* Initial register settings functions */
1395 int ath5k_hw_write_initvals(struct ath5k_hw *ah, u8 mode, bool change_channel);
1399 /* Misc PHY functions */
1400 u16 ath5k_hw_radio_revision(struct ath5k_hw *ah, enum ieee80211_band band);
1401 int ath5k_hw_phy_disable(struct ath5k_hw *ah);
1402 /* Gain_F optimization */
1403 enum ath5k_rfgain ath5k_hw_gainf_calibrate(struct ath5k_hw *ah);
1404 int ath5k_hw_rfgain_opt_init(struct ath5k_hw *ah);
1405 /* PHY/RF channel functions */
1406 bool ath5k_channel_ok(struct ath5k_hw *ah, struct ieee80211_channel *channel);
1407 /* PHY calibration */
1408 void ath5k_hw_init_nfcal_hist(struct ath5k_hw *ah);
1409 int ath5k_hw_phy_calibrate(struct ath5k_hw *ah,
1410 struct ieee80211_channel *channel);
1411 void ath5k_hw_update_noise_floor(struct ath5k_hw *ah);
1412 /* Spur mitigation */
1413 bool ath5k_hw_chan_has_spur_noise(struct ath5k_hw *ah,
1414 struct ieee80211_channel *channel);
1415 /* Antenna control */
1416 void ath5k_hw_set_antenna_mode(struct ath5k_hw *ah, u8 ant_mode);
1417 void ath5k_hw_set_antenna_switch(struct ath5k_hw *ah, u8 ee_mode);
1418 /* TX power setup */
1419 int ath5k_hw_set_txpower_limit(struct ath5k_hw *ah, u8 txpower);
1421 int ath5k_hw_phy_init(struct ath5k_hw *ah, struct ieee80211_channel *channel,
1422 u8 mode, bool fast);
1425 * Functions used internally
1428 static inline struct ath_common *ath5k_hw_common(struct ath5k_hw *ah)
1433 static inline struct ath_regulatory *ath5k_hw_regulatory(struct ath5k_hw *ah)
1435 return &(ath5k_hw_common(ah)->regulatory);
1438 #ifdef CONFIG_ATHEROS_AR231X
1439 #define AR5K_AR2315_PCI_BASE ((void __iomem *)0xb0100000)
1441 static inline void __iomem *ath5k_ahb_reg(struct ath5k_hw *ah, u16 reg)
1443 /* On AR2315 and AR2317 the PCI clock domain registers
1444 * are outside of the WMAC register space */
1445 if (unlikely((reg >= 0x4000) && (reg < 0x5000) &&
1446 (ah->ah_mac_srev >= AR5K_SREV_AR2315_R6)))
1447 return AR5K_AR2315_PCI_BASE + reg;
1449 return ah->iobase + reg;
1452 static inline u32 ath5k_hw_reg_read(struct ath5k_hw *ah, u16 reg)
1454 return __raw_readl(ath5k_ahb_reg(ah, reg));
1457 static inline void ath5k_hw_reg_write(struct ath5k_hw *ah, u32 val, u16 reg)
1459 __raw_writel(val, ath5k_ahb_reg(ah, reg));
1464 static inline u32 ath5k_hw_reg_read(struct ath5k_hw *ah, u16 reg)
1466 return ioread32(ah->iobase + reg);
1469 static inline void ath5k_hw_reg_write(struct ath5k_hw *ah, u32 val, u16 reg)
1471 iowrite32(val, ah->iobase + reg);
1476 static inline enum ath_bus_type ath5k_get_bus_type(struct ath5k_hw *ah)
1478 return ath5k_hw_common(ah)->bus_ops->ath_bus_type;
1481 static inline void ath5k_read_cachesize(struct ath_common *common, int *csz)
1483 common->bus_ops->read_cachesize(common, csz);
1486 static inline bool ath5k_hw_nvram_read(struct ath5k_hw *ah, u32 off, u16 *data)
1488 struct ath_common *common = ath5k_hw_common(ah);
1489 return common->bus_ops->eeprom_read(common, off, data);
1492 static inline u32 ath5k_hw_bitswap(u32 val, unsigned int bits)
1494 u32 retval = 0, bit, i;
1496 for (i = 0; i < bits; i++) {
1497 bit = (val >> i) & 1;
1498 retval = (retval << 1) | bit;