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 debuging -doesn't work anyway- and start
22 * working on reg. control code using all available eeprom information
23 * -rev. engineering needed- */
27 #include <linux/types.h>
28 #include <linux/average.h>
29 #include <net/mac80211.h>
31 /* RX/TX descriptor hw structs
32 * TODO: Driver part should only see sw structs */
35 /* EEPROM structs/offsets
36 * TODO: Make a more generic struct (eg. add more stuff to ath5k_capabilities)
37 * and clean up common bits, then introduce set/get functions in eeprom.c */
42 #define PCI_DEVICE_ID_ATHEROS_AR5210 0x0007 /* AR5210 */
43 #define PCI_DEVICE_ID_ATHEROS_AR5311 0x0011 /* AR5311 */
44 #define PCI_DEVICE_ID_ATHEROS_AR5211 0x0012 /* AR5211 */
45 #define PCI_DEVICE_ID_ATHEROS_AR5212 0x0013 /* AR5212 */
46 #define PCI_DEVICE_ID_3COM_3CRDAG675 0x0013 /* 3CRDAG675 (Atheros AR5212) */
47 #define PCI_DEVICE_ID_3COM_2_3CRPAG175 0x0013 /* 3CRPAG175 (Atheros AR5212) */
48 #define PCI_DEVICE_ID_ATHEROS_AR5210_AP 0x0207 /* AR5210 (Early) */
49 #define PCI_DEVICE_ID_ATHEROS_AR5212_IBM 0x1014 /* AR5212 (IBM MiniPCI) */
50 #define PCI_DEVICE_ID_ATHEROS_AR5210_DEFAULT 0x1107 /* AR5210 (no eeprom) */
51 #define PCI_DEVICE_ID_ATHEROS_AR5212_DEFAULT 0x1113 /* AR5212 (no eeprom) */
52 #define PCI_DEVICE_ID_ATHEROS_AR5211_DEFAULT 0x1112 /* AR5211 (no eeprom) */
53 #define PCI_DEVICE_ID_ATHEROS_AR5212_FPGA 0xf013 /* AR5212 (emulation board) */
54 #define PCI_DEVICE_ID_ATHEROS_AR5211_LEGACY 0xff12 /* AR5211 (emulation board) */
55 #define PCI_DEVICE_ID_ATHEROS_AR5211_FPGA11B 0xf11b /* AR5211 (emulation board) */
56 #define PCI_DEVICE_ID_ATHEROS_AR5312_REV2 0x0052 /* AR5312 WMAC (AP31) */
57 #define PCI_DEVICE_ID_ATHEROS_AR5312_REV7 0x0057 /* AR5312 WMAC (AP30-040) */
58 #define PCI_DEVICE_ID_ATHEROS_AR5312_REV8 0x0058 /* AR5312 WMAC (AP43-030) */
59 #define PCI_DEVICE_ID_ATHEROS_AR5212_0014 0x0014 /* AR5212 compatible */
60 #define PCI_DEVICE_ID_ATHEROS_AR5212_0015 0x0015 /* AR5212 compatible */
61 #define PCI_DEVICE_ID_ATHEROS_AR5212_0016 0x0016 /* AR5212 compatible */
62 #define PCI_DEVICE_ID_ATHEROS_AR5212_0017 0x0017 /* AR5212 compatible */
63 #define PCI_DEVICE_ID_ATHEROS_AR5212_0018 0x0018 /* AR5212 compatible */
64 #define PCI_DEVICE_ID_ATHEROS_AR5212_0019 0x0019 /* AR5212 compatible */
65 #define PCI_DEVICE_ID_ATHEROS_AR2413 0x001a /* AR2413 (Griffin-lite) */
66 #define PCI_DEVICE_ID_ATHEROS_AR5413 0x001b /* AR5413 (Eagle) */
67 #define PCI_DEVICE_ID_ATHEROS_AR5424 0x001c /* AR5424 (Condor PCI-E) */
68 #define PCI_DEVICE_ID_ATHEROS_AR5416 0x0023 /* AR5416 */
69 #define PCI_DEVICE_ID_ATHEROS_AR5418 0x0024 /* AR5418 */
71 /****************************\
72 GENERIC DRIVER DEFINITIONS
73 \****************************/
75 #define ATH5K_PRINTF(fmt, ...) printk("%s: " fmt, __func__, ##__VA_ARGS__)
77 #define ATH5K_PRINTK(_sc, _level, _fmt, ...) \
78 printk(_level "ath5k %s: " _fmt, \
79 ((_sc) && (_sc)->hw) ? wiphy_name((_sc)->hw->wiphy) : "", \
82 #define ATH5K_PRINTK_LIMIT(_sc, _level, _fmt, ...) do { \
83 if (net_ratelimit()) \
84 ATH5K_PRINTK(_sc, _level, _fmt, ##__VA_ARGS__); \
87 #define ATH5K_INFO(_sc, _fmt, ...) \
88 ATH5K_PRINTK(_sc, KERN_INFO, _fmt, ##__VA_ARGS__)
90 #define ATH5K_WARN(_sc, _fmt, ...) \
91 ATH5K_PRINTK_LIMIT(_sc, KERN_WARNING, _fmt, ##__VA_ARGS__)
93 #define ATH5K_ERR(_sc, _fmt, ...) \
94 ATH5K_PRINTK_LIMIT(_sc, KERN_ERR, _fmt, ##__VA_ARGS__)
97 * AR5K REGISTER ACCESS
100 /* Some macros to read/write fields */
102 /* First shift, then mask */
103 #define AR5K_REG_SM(_val, _flags) \
104 (((_val) << _flags##_S) & (_flags))
106 /* First mask, then shift */
107 #define AR5K_REG_MS(_val, _flags) \
108 (((_val) & (_flags)) >> _flags##_S)
110 /* Some registers can hold multiple values of interest. For this
111 * reason when we want to write to these registers we must first
112 * retrieve the values which we do not want to clear (lets call this
113 * old_data) and then set the register with this and our new_value:
114 * ( old_data | new_value) */
115 #define AR5K_REG_WRITE_BITS(ah, _reg, _flags, _val) \
116 ath5k_hw_reg_write(ah, (ath5k_hw_reg_read(ah, _reg) & ~(_flags)) | \
117 (((_val) << _flags##_S) & (_flags)), _reg)
119 #define AR5K_REG_MASKED_BITS(ah, _reg, _flags, _mask) \
120 ath5k_hw_reg_write(ah, (ath5k_hw_reg_read(ah, _reg) & \
121 (_mask)) | (_flags), _reg)
123 #define AR5K_REG_ENABLE_BITS(ah, _reg, _flags) \
124 ath5k_hw_reg_write(ah, ath5k_hw_reg_read(ah, _reg) | (_flags), _reg)
126 #define AR5K_REG_DISABLE_BITS(ah, _reg, _flags) \
127 ath5k_hw_reg_write(ah, ath5k_hw_reg_read(ah, _reg) & ~(_flags), _reg)
129 /* Access to PHY registers */
130 #define AR5K_PHY_READ(ah, _reg) \
131 ath5k_hw_reg_read(ah, (ah)->ah_phy + ((_reg) << 2))
133 #define AR5K_PHY_WRITE(ah, _reg, _val) \
134 ath5k_hw_reg_write(ah, _val, (ah)->ah_phy + ((_reg) << 2))
136 /* Access QCU registers per queue */
137 #define AR5K_REG_READ_Q(ah, _reg, _queue) \
138 (ath5k_hw_reg_read(ah, _reg) & (1 << _queue)) \
140 #define AR5K_REG_WRITE_Q(ah, _reg, _queue) \
141 ath5k_hw_reg_write(ah, (1 << _queue), _reg)
143 #define AR5K_Q_ENABLE_BITS(_reg, _queue) do { \
144 _reg |= 1 << _queue; \
147 #define AR5K_Q_DISABLE_BITS(_reg, _queue) do { \
148 _reg &= ~(1 << _queue); \
151 /* Used while writing initvals */
152 #define AR5K_REG_WAIT(_i) do { \
157 /* Register dumps are done per operation mode */
158 #define AR5K_INI_RFGAIN_5GHZ 0
159 #define AR5K_INI_RFGAIN_2GHZ 1
161 /* TODO: Clean this up */
162 #define AR5K_INI_VAL_11A 0
163 #define AR5K_INI_VAL_11A_TURBO 1
164 #define AR5K_INI_VAL_11B 2
165 #define AR5K_INI_VAL_11G 3
166 #define AR5K_INI_VAL_11G_TURBO 4
167 #define AR5K_INI_VAL_XR 0
168 #define AR5K_INI_VAL_MAX 5
171 * Some tuneable values (these should be changeable by the user)
172 * TODO: Make use of them and add more options OR use debug/configfs
174 #define AR5K_TUNE_DMA_BEACON_RESP 2
175 #define AR5K_TUNE_SW_BEACON_RESP 10
176 #define AR5K_TUNE_ADDITIONAL_SWBA_BACKOFF 0
177 #define AR5K_TUNE_RADAR_ALERT false
178 #define AR5K_TUNE_MIN_TX_FIFO_THRES 1
179 #define AR5K_TUNE_MAX_TX_FIFO_THRES ((IEEE80211_MAX_FRAME_LEN / 64) + 1)
180 #define AR5K_TUNE_REGISTER_TIMEOUT 20000
181 /* Register for RSSI threshold has a mask of 0xff, so 255 seems to
182 * be the max value. */
183 #define AR5K_TUNE_RSSI_THRES 129
184 /* This must be set when setting the RSSI threshold otherwise it can
185 * prevent a reset. If AR5K_RSSI_THR is read after writing to it
186 * the BMISS_THRES will be seen as 0, seems harware doesn't keep
187 * track of it. Max value depends on harware. For AR5210 this is just 7.
188 * For AR5211+ this seems to be up to 255. */
189 #define AR5K_TUNE_BMISS_THRES 7
190 #define AR5K_TUNE_REGISTER_DWELL_TIME 20000
191 #define AR5K_TUNE_BEACON_INTERVAL 100
192 #define AR5K_TUNE_AIFS 2
193 #define AR5K_TUNE_AIFS_11B 2
194 #define AR5K_TUNE_AIFS_XR 0
195 #define AR5K_TUNE_CWMIN 15
196 #define AR5K_TUNE_CWMIN_11B 31
197 #define AR5K_TUNE_CWMIN_XR 3
198 #define AR5K_TUNE_CWMAX 1023
199 #define AR5K_TUNE_CWMAX_11B 1023
200 #define AR5K_TUNE_CWMAX_XR 7
201 #define AR5K_TUNE_NOISE_FLOOR -72
202 #define AR5K_TUNE_CCA_MAX_GOOD_VALUE -95
203 #define AR5K_TUNE_MAX_TXPOWER 63
204 #define AR5K_TUNE_DEFAULT_TXPOWER 25
205 #define AR5K_TUNE_TPC_TXPOWER false
206 #define ATH5K_TUNE_CALIBRATION_INTERVAL_FULL 10000 /* 10 sec */
207 #define ATH5K_TUNE_CALIBRATION_INTERVAL_ANI 1000 /* 1 sec */
208 #define ATH5K_TUNE_CALIBRATION_INTERVAL_NF 60000 /* 60 sec */
210 #define ATH5K_TX_COMPLETE_POLL_INT 3000 /* 3 sec */
212 #define AR5K_INIT_CARR_SENSE_EN 1
214 /*Swap RX/TX Descriptor for big endian archs*/
215 #if defined(__BIG_ENDIAN)
216 #define AR5K_INIT_CFG ( \
217 AR5K_CFG_SWTD | AR5K_CFG_SWRD \
220 #define AR5K_INIT_CFG 0x00000000
224 #define AR5K_INIT_CYCRSSI_THR1 2
225 #define AR5K_INIT_TX_LATENCY 502
226 #define AR5K_INIT_USEC 39
227 #define AR5K_INIT_USEC_TURBO 79
228 #define AR5K_INIT_USEC_32 31
229 #define AR5K_INIT_SLOT_TIME_CLOCK 396
230 #define AR5K_INIT_SLOT_TIME_TURBO_CLOCK 480
231 #define AR5K_INIT_ACK_CTS_TIMEOUT 1024
232 #define AR5K_INIT_ACK_CTS_TIMEOUT_TURBO 0x08000800
233 #define AR5K_INIT_PROG_IFS 920
234 #define AR5K_INIT_PROG_IFS_TURBO 960
235 #define AR5K_INIT_EIFS 3440
236 #define AR5K_INIT_EIFS_TURBO 6880
237 #define AR5K_INIT_SIFS_CLOCK 560
238 #define AR5K_INIT_SIFS_TURBO_CLOCK 480
239 #define AR5K_INIT_SH_RETRY 10
240 #define AR5K_INIT_LG_RETRY AR5K_INIT_SH_RETRY
241 #define AR5K_INIT_SSH_RETRY 32
242 #define AR5K_INIT_SLG_RETRY AR5K_INIT_SSH_RETRY
243 #define AR5K_INIT_TX_RETRY 10
245 #define AR5K_INIT_PROTO_TIME_CNTRL ( \
246 (AR5K_INIT_CARR_SENSE_EN << 26) | (AR5K_INIT_EIFS << 12) | \
247 (AR5K_INIT_PROG_IFS) \
249 #define AR5K_INIT_PROTO_TIME_CNTRL_TURBO ( \
250 (AR5K_INIT_CARR_SENSE_EN << 26) | (AR5K_INIT_EIFS_TURBO << 12) | \
251 (AR5K_INIT_PROG_IFS_TURBO) \
255 #define AR5K_INIT_SLOT_TIME_TURBO 6
256 #define AR5K_INIT_SLOT_TIME_DEFAULT 9
257 #define AR5K_INIT_SLOT_TIME_HALF_RATE 13
258 #define AR5K_INIT_SLOT_TIME_QUARTER_RATE 21
259 #define AR5K_INIT_SLOT_TIME_B 20
260 #define AR5K_SLOT_TIME_MAX 0xffff
263 #define AR5K_INIT_SIFS_TURBO 6
264 /* XXX: 8 from initvals 10 from standard */
265 #define AR5K_INIT_SIFS_DEFAULT_BG 8
266 #define AR5K_INIT_SIFS_DEFAULT_A 16
267 #define AR5K_INIT_SIFS_HALF_RATE 32
268 #define AR5K_INIT_SIFS_QUARTER_RATE 64
270 /* Used to calculate tx time for non 5/10/40MHz
272 /* It's preamble time + signal time (16 + 4) */
273 #define AR5K_INIT_OFDM_PREAMPLE_TIME 20
274 /* Preamble time for 40MHz (turbo) operation (min ?) */
275 #define AR5K_INIT_OFDM_PREAMBLE_TIME_MIN 14
276 #define AR5K_INIT_OFDM_SYMBOL_TIME 4
277 #define AR5K_INIT_OFDM_PLCP_BITS 22
279 /* Rx latency for 5 and 10MHz operation (max ?) */
280 #define AR5K_INIT_RX_LAT_MAX 63
281 /* Tx latencies from initvals (5212 only but no problem
282 * because we only tweak them on 5212) */
283 #define AR5K_INIT_TX_LAT_A 54
284 #define AR5K_INIT_TX_LAT_BG 384
285 /* Tx latency for 40MHz (turbo) operation (min ?) */
286 #define AR5K_INIT_TX_LAT_MIN 32
287 /* Default Tx/Rx latencies (same for 5211)*/
288 #define AR5K_INIT_TX_LATENCY_5210 54
289 #define AR5K_INIT_RX_LATENCY_5210 29
291 /* Tx frame to Tx data start delay */
292 #define AR5K_INIT_TXF2TXD_START_DEFAULT 14
293 #define AR5K_INIT_TXF2TXD_START_DELAY_10MHZ 12
294 #define AR5K_INIT_TXF2TXD_START_DELAY_5MHZ 13
296 /* We need to increase PHY switch and agc settling time
298 #define AR5K_SWITCH_SETTLING 5760
299 #define AR5K_SWITCH_SETTLING_TURBO 7168
301 #define AR5K_AGC_SETTLING 28
302 /* 38 on 5210 but shouldn't matter */
303 #define AR5K_AGC_SETTLING_TURBO 37
306 /* GENERIC CHIPSET DEFINITIONS */
328 * Common silicon revision/version values
331 enum ath5k_srev_type {
336 struct ath5k_srev_name {
338 enum ath5k_srev_type sr_type;
342 #define AR5K_SREV_UNKNOWN 0xffff
344 #define AR5K_SREV_AR5210 0x00 /* Crete */
345 #define AR5K_SREV_AR5311 0x10 /* Maui 1 */
346 #define AR5K_SREV_AR5311A 0x20 /* Maui 2 */
347 #define AR5K_SREV_AR5311B 0x30 /* Spirit */
348 #define AR5K_SREV_AR5211 0x40 /* Oahu */
349 #define AR5K_SREV_AR5212 0x50 /* Venice */
350 #define AR5K_SREV_AR5212_V4 0x54 /* ??? */
351 #define AR5K_SREV_AR5213 0x55 /* ??? */
352 #define AR5K_SREV_AR5213A 0x59 /* Hainan */
353 #define AR5K_SREV_AR2413 0x78 /* Griffin lite */
354 #define AR5K_SREV_AR2414 0x70 /* Griffin */
355 #define AR5K_SREV_AR5424 0x90 /* Condor */
356 #define AR5K_SREV_AR5413 0xa4 /* Eagle lite */
357 #define AR5K_SREV_AR5414 0xa0 /* Eagle */
358 #define AR5K_SREV_AR2415 0xb0 /* Talon */
359 #define AR5K_SREV_AR5416 0xc0 /* PCI-E */
360 #define AR5K_SREV_AR5418 0xca /* PCI-E */
361 #define AR5K_SREV_AR2425 0xe0 /* Swan */
362 #define AR5K_SREV_AR2417 0xf0 /* Nala */
364 #define AR5K_SREV_RAD_5110 0x00
365 #define AR5K_SREV_RAD_5111 0x10
366 #define AR5K_SREV_RAD_5111A 0x15
367 #define AR5K_SREV_RAD_2111 0x20
368 #define AR5K_SREV_RAD_5112 0x30
369 #define AR5K_SREV_RAD_5112A 0x35
370 #define AR5K_SREV_RAD_5112B 0x36
371 #define AR5K_SREV_RAD_2112 0x40
372 #define AR5K_SREV_RAD_2112A 0x45
373 #define AR5K_SREV_RAD_2112B 0x46
374 #define AR5K_SREV_RAD_2413 0x50
375 #define AR5K_SREV_RAD_5413 0x60
376 #define AR5K_SREV_RAD_2316 0x70 /* Cobra SoC */
377 #define AR5K_SREV_RAD_2317 0x80
378 #define AR5K_SREV_RAD_5424 0xa0 /* Mostly same as 5413 */
379 #define AR5K_SREV_RAD_2425 0xa2
380 #define AR5K_SREV_RAD_5133 0xc0
382 #define AR5K_SREV_PHY_5211 0x30
383 #define AR5K_SREV_PHY_5212 0x41
384 #define AR5K_SREV_PHY_5212A 0x42
385 #define AR5K_SREV_PHY_5212B 0x43
386 #define AR5K_SREV_PHY_2413 0x45
387 #define AR5K_SREV_PHY_5413 0x61
388 #define AR5K_SREV_PHY_2425 0x70
390 /* TODO add support to mac80211 for vendor-specific rates and modes */
393 * Some of this information is based on Documentation from:
395 * http://madwifi-project.org/wiki/ChipsetFeatures/SuperAG
397 * Modulation for Atheros' eXtended Range - range enhancing extension that is
398 * supposed to double the distance an Atheros client device can keep a
399 * connection with an Atheros access point. This is achieved by increasing
400 * the receiver sensitivity up to, -105dBm, which is about 20dB above what
401 * the 802.11 specifications demand. In addition, new (proprietary) data rates
402 * are introduced: 3, 2, 1, 0.5 and 0.25 MBit/s.
404 * Please note that can you either use XR or TURBO but you cannot use both,
405 * they are exclusive.
408 #define MODULATION_XR 0x00000200
410 * Modulation for Atheros' Turbo G and Turbo A, its supposed to provide a
411 * throughput transmission speed up to 40Mbit/s-60Mbit/s at a 108Mbit/s
412 * signaling rate achieved through the bonding of two 54Mbit/s 802.11g
413 * channels. To use this feature your Access Point must also suport it.
414 * There is also a distinction between "static" and "dynamic" turbo modes:
416 * - Static: is the dumb version: devices set to this mode stick to it until
417 * the mode is turned off.
418 * - Dynamic: is the intelligent version, the network decides itself if it
419 * is ok to use turbo. As soon as traffic is detected on adjacent channels
420 * (which would get used in turbo mode), or when a non-turbo station joins
421 * the network, turbo mode won't be used until the situation changes again.
422 * Dynamic mode is achieved by Atheros' Adaptive Radio (AR) feature which
423 * monitors the used radio band in order to decide whether turbo mode may
426 * This article claims Super G sticks to bonding of channels 5 and 6 for
429 * http://www.pcworld.com/article/id,113428-page,1/article.html
431 * The channel bonding seems to be driver specific though. In addition to
432 * deciding what channels will be used, these "Turbo" modes are accomplished
433 * by also enabling the following features:
435 * - Bursting: allows multiple frames to be sent at once, rather than pausing
436 * after each frame. Bursting is a standards-compliant feature that can be
437 * used with any Access Point.
438 * - Fast frames: increases the amount of information that can be sent per
439 * frame, also resulting in a reduction of transmission overhead. It is a
440 * proprietary feature that needs to be supported by the Access Point.
441 * - Compression: data frames are compressed in real time using a Lempel Ziv
442 * algorithm. This is done transparently. Once this feature is enabled,
443 * compression and decompression takes place inside the chipset, without
444 * putting additional load on the host CPU.
447 #define MODULATION_TURBO 0x00000080
449 enum ath5k_driver_mode {
451 AR5K_MODE_11A_TURBO = 1,
454 AR5K_MODE_11G_TURBO = 4,
459 enum ath5k_ant_mode {
460 AR5K_ANTMODE_DEFAULT = 0, /* default antenna setup */
461 AR5K_ANTMODE_FIXED_A = 1, /* only antenna A is present */
462 AR5K_ANTMODE_FIXED_B = 2, /* only antenna B is present */
463 AR5K_ANTMODE_SINGLE_AP = 3, /* sta locked on a single ap */
464 AR5K_ANTMODE_SECTOR_AP = 4, /* AP with tx antenna set on tx desc */
465 AR5K_ANTMODE_SECTOR_STA = 5, /* STA with tx antenna set on tx desc */
466 AR5K_ANTMODE_DEBUG = 6, /* Debug mode -A -> Rx, B-> Tx- */
471 AR5K_BWMODE_DEFAULT = 0, /* 20MHz, default operation */
472 AR5K_BWMODE_5MHZ = 1, /* Quarter rate */
473 AR5K_BWMODE_10MHZ = 2, /* Half rate */
474 AR5K_BWMODE_40MHZ = 3 /* Turbo */
482 * TX Status descriptor
484 struct ath5k_tx_status {
498 #define AR5K_TXSTAT_ALTRATE 0x80
499 #define AR5K_TXERR_XRETRY 0x01
500 #define AR5K_TXERR_FILT 0x02
501 #define AR5K_TXERR_FIFO 0x04
504 * enum ath5k_tx_queue - Queue types used to classify tx queues.
505 * @AR5K_TX_QUEUE_INACTIVE: q is unused -- see ath5k_hw_release_tx_queue
506 * @AR5K_TX_QUEUE_DATA: A normal data queue
507 * @AR5K_TX_QUEUE_XR_DATA: An XR-data queue
508 * @AR5K_TX_QUEUE_BEACON: The beacon queue
509 * @AR5K_TX_QUEUE_CAB: The after-beacon queue
510 * @AR5K_TX_QUEUE_UAPSD: Unscheduled Automatic Power Save Delivery queue
512 enum ath5k_tx_queue {
513 AR5K_TX_QUEUE_INACTIVE = 0,
515 AR5K_TX_QUEUE_XR_DATA,
516 AR5K_TX_QUEUE_BEACON,
521 #define AR5K_NUM_TX_QUEUES 10
522 #define AR5K_NUM_TX_QUEUES_NOQCU 2
525 * Queue syb-types to classify normal data queues.
526 * These are the 4 Access Categories as defined in
527 * WME spec. 0 is the lowest priority and 4 is the
528 * highest. Normal data that hasn't been classified
529 * goes to the Best Effort AC.
531 enum ath5k_tx_queue_subtype {
532 AR5K_WME_AC_BK = 0, /*Background traffic*/
533 AR5K_WME_AC_BE, /*Best-effort (normal) traffic)*/
534 AR5K_WME_AC_VI, /*Video traffic*/
535 AR5K_WME_AC_VO, /*Voice traffic*/
539 * Queue ID numbers as returned by the hw functions, each number
540 * represents a hw queue. If hw does not support hw queues
541 * (eg 5210) all data goes in one queue. These match
542 * d80211 definitions (net80211/MadWiFi don't use them).
544 enum ath5k_tx_queue_id {
545 AR5K_TX_QUEUE_ID_NOQCU_DATA = 0,
546 AR5K_TX_QUEUE_ID_NOQCU_BEACON = 1,
547 AR5K_TX_QUEUE_ID_DATA_MIN = 0, /*IEEE80211_TX_QUEUE_DATA0*/
548 AR5K_TX_QUEUE_ID_DATA_MAX = 4, /*IEEE80211_TX_QUEUE_DATA4*/
549 AR5K_TX_QUEUE_ID_DATA_SVP = 5, /*IEEE80211_TX_QUEUE_SVP - Spectralink Voice Protocol*/
550 AR5K_TX_QUEUE_ID_CAB = 6, /*IEEE80211_TX_QUEUE_AFTER_BEACON*/
551 AR5K_TX_QUEUE_ID_BEACON = 7, /*IEEE80211_TX_QUEUE_BEACON*/
552 AR5K_TX_QUEUE_ID_UAPSD = 8,
553 AR5K_TX_QUEUE_ID_XR_DATA = 9,
557 * Flags to set hw queue's parameters...
559 #define AR5K_TXQ_FLAG_TXOKINT_ENABLE 0x0001 /* Enable TXOK interrupt */
560 #define AR5K_TXQ_FLAG_TXERRINT_ENABLE 0x0002 /* Enable TXERR interrupt */
561 #define AR5K_TXQ_FLAG_TXEOLINT_ENABLE 0x0004 /* Enable TXEOL interrupt -not used- */
562 #define AR5K_TXQ_FLAG_TXDESCINT_ENABLE 0x0008 /* Enable TXDESC interrupt -not used- */
563 #define AR5K_TXQ_FLAG_TXURNINT_ENABLE 0x0010 /* Enable TXURN interrupt */
564 #define AR5K_TXQ_FLAG_CBRORNINT_ENABLE 0x0020 /* Enable CBRORN interrupt */
565 #define AR5K_TXQ_FLAG_CBRURNINT_ENABLE 0x0040 /* Enable CBRURN interrupt */
566 #define AR5K_TXQ_FLAG_QTRIGINT_ENABLE 0x0080 /* Enable QTRIG interrupt */
567 #define AR5K_TXQ_FLAG_TXNOFRMINT_ENABLE 0x0100 /* Enable TXNOFRM interrupt */
568 #define AR5K_TXQ_FLAG_BACKOFF_DISABLE 0x0200 /* Disable random post-backoff */
569 #define AR5K_TXQ_FLAG_RDYTIME_EXP_POLICY_ENABLE 0x0300 /* Enable ready time expiry policy (?)*/
570 #define AR5K_TXQ_FLAG_FRAG_BURST_BACKOFF_ENABLE 0x0800 /* Enable backoff while bursting */
571 #define AR5K_TXQ_FLAG_POST_FR_BKOFF_DIS 0x1000 /* Disable backoff while bursting */
572 #define AR5K_TXQ_FLAG_COMPRESSION_ENABLE 0x2000 /* Enable hw compression -not implemented-*/
575 * A struct to hold tx queue's parameters
577 struct ath5k_txq_info {
578 enum ath5k_tx_queue tqi_type;
579 enum ath5k_tx_queue_subtype tqi_subtype;
580 u16 tqi_flags; /* Tx queue flags (see above) */
581 u8 tqi_aifs; /* Arbitrated Interframe Space */
582 u16 tqi_cw_min; /* Minimum Contention Window */
583 u16 tqi_cw_max; /* Maximum Contention Window */
584 u32 tqi_cbr_period; /* Constant bit rate period */
585 u32 tqi_cbr_overflow_limit;
587 u32 tqi_ready_time; /* Time queue waits after an event */
591 * Transmit packet types.
592 * used on tx control descriptor
594 enum ath5k_pkt_type {
595 AR5K_PKT_TYPE_NORMAL = 0,
596 AR5K_PKT_TYPE_ATIM = 1,
597 AR5K_PKT_TYPE_PSPOLL = 2,
598 AR5K_PKT_TYPE_BEACON = 3,
599 AR5K_PKT_TYPE_PROBE_RESP = 4,
600 AR5K_PKT_TYPE_PIFS = 5,
604 * TX power and TPC settings
606 #define AR5K_TXPOWER_OFDM(_r, _v) ( \
607 ((0 & 1) << ((_v) + 6)) | \
608 (((ah->ah_txpower.txp_rates_power_table[(_r)]) & 0x3f) << (_v)) \
611 #define AR5K_TXPOWER_CCK(_r, _v) ( \
612 (ah->ah_txpower.txp_rates_power_table[(_r)] & 0x3f) << (_v) \
616 * DMA size definitions (2^(n+2))
635 * RX Status descriptor
637 struct ath5k_rx_status {
649 #define AR5K_RXERR_CRC 0x01
650 #define AR5K_RXERR_PHY 0x02
651 #define AR5K_RXERR_FIFO 0x04
652 #define AR5K_RXERR_DECRYPT 0x08
653 #define AR5K_RXERR_MIC 0x10
654 #define AR5K_RXKEYIX_INVALID ((u8) - 1)
655 #define AR5K_TXKEYIX_INVALID ((u32) - 1)
658 /**************************\
659 BEACON TIMERS DEFINITIONS
660 \**************************/
662 #define AR5K_BEACON_PERIOD 0x0000ffff
663 #define AR5K_BEACON_ENA 0x00800000 /*enable beacon xmit*/
664 #define AR5K_BEACON_RESET_TSF 0x01000000 /*force a TSF reset*/
668 * TSF to TU conversion:
670 * TSF is a 64bit value in usec (microseconds).
671 * TU is a 32bit value and defined by IEEE802.11 (page 6) as "A measurement of
672 * time equal to 1024 usec", so it's roughly milliseconds (usec / 1024).
674 #define TSF_TO_TU(_tsf) (u32)((_tsf) >> 10)
677 /*******************************\
678 GAIN OPTIMIZATION DEFINITIONS
679 \*******************************/
682 AR5K_RFGAIN_INACTIVE = 0,
684 AR5K_RFGAIN_READ_REQUESTED,
685 AR5K_RFGAIN_NEED_CHANGE,
698 /********************\
700 \********************/
702 #define AR5K_SLOT_TIME_9 396
703 #define AR5K_SLOT_TIME_20 880
704 #define AR5K_SLOT_TIME_MAX 0xffff
707 #define CHANNEL_CW_INT 0x0008 /* Contention Window interference detected */
708 #define CHANNEL_TURBO 0x0010 /* Turbo Channel */
709 #define CHANNEL_CCK 0x0020 /* CCK channel */
710 #define CHANNEL_OFDM 0x0040 /* OFDM channel */
711 #define CHANNEL_2GHZ 0x0080 /* 2GHz channel. */
712 #define CHANNEL_5GHZ 0x0100 /* 5GHz channel */
713 #define CHANNEL_PASSIVE 0x0200 /* Only passive scan allowed */
714 #define CHANNEL_DYN 0x0400 /* Dynamic CCK-OFDM channel (for g operation) */
715 #define CHANNEL_XR 0x0800 /* XR channel */
717 #define CHANNEL_A (CHANNEL_5GHZ|CHANNEL_OFDM)
718 #define CHANNEL_B (CHANNEL_2GHZ|CHANNEL_CCK)
719 #define CHANNEL_G (CHANNEL_2GHZ|CHANNEL_OFDM)
720 #define CHANNEL_T (CHANNEL_5GHZ|CHANNEL_OFDM|CHANNEL_TURBO)
721 #define CHANNEL_TG (CHANNEL_2GHZ|CHANNEL_OFDM|CHANNEL_TURBO)
722 #define CHANNEL_108A CHANNEL_T
723 #define CHANNEL_108G CHANNEL_TG
724 #define CHANNEL_X (CHANNEL_5GHZ|CHANNEL_OFDM|CHANNEL_XR)
726 #define CHANNEL_ALL (CHANNEL_OFDM|CHANNEL_CCK|CHANNEL_2GHZ|CHANNEL_5GHZ| \
729 #define CHANNEL_ALL_NOTURBO (CHANNEL_ALL & ~CHANNEL_TURBO)
730 #define CHANNEL_MODES CHANNEL_ALL
733 * Used internaly for reset_tx_queue).
734 * Also see struct struct ieee80211_channel.
736 #define IS_CHAN_XR(_c) ((_c->hw_value & CHANNEL_XR) != 0)
737 #define IS_CHAN_B(_c) ((_c->hw_value & CHANNEL_B) != 0)
740 * The following structure is used to map 2GHz channels to
741 * 5GHz Atheros channels.
744 struct ath5k_athchan_2ghz {
755 * Seems the ar5xxx harware supports up to 32 rates, indexed by 1-32.
757 * The rate code is used to get the RX rate or set the TX rate on the
758 * hardware descriptors. It is also used for internal modulation control
761 * This is the hardware rate map we are aware of:
763 * rate_code 0x01 0x02 0x03 0x04 0x05 0x06 0x07 0x08
764 * rate_kbps 3000 1000 ? ? ? 2000 500 48000
766 * rate_code 0x09 0x0A 0x0B 0x0C 0x0D 0x0E 0x0F 0x10
767 * rate_kbps 24000 12000 6000 54000 36000 18000 9000 ?
769 * rate_code 17 18 19 20 21 22 23 24
770 * rate_kbps ? ? ? ? ? ? ? 11000
772 * rate_code 25 26 27 28 29 30 31 32
773 * rate_kbps 5500 2000 1000 11000S 5500S 2000S ? ?
775 * "S" indicates CCK rates with short preamble.
777 * AR5211 has different rate codes for CCK (802.11B) rates. It only uses the
778 * lowest 4 bits, so they are the same as below with a 0xF mask.
779 * (0xB, 0xA, 0x9 and 0x8 for 1M, 2M, 5.5M and 11M).
780 * We handle this in ath5k_setup_bands().
782 #define AR5K_MAX_RATES 32
785 #define ATH5K_RATE_CODE_1M 0x1B
786 #define ATH5K_RATE_CODE_2M 0x1A
787 #define ATH5K_RATE_CODE_5_5M 0x19
788 #define ATH5K_RATE_CODE_11M 0x18
790 #define ATH5K_RATE_CODE_6M 0x0B
791 #define ATH5K_RATE_CODE_9M 0x0F
792 #define ATH5K_RATE_CODE_12M 0x0A
793 #define ATH5K_RATE_CODE_18M 0x0E
794 #define ATH5K_RATE_CODE_24M 0x09
795 #define ATH5K_RATE_CODE_36M 0x0D
796 #define ATH5K_RATE_CODE_48M 0x08
797 #define ATH5K_RATE_CODE_54M 0x0C
799 #define ATH5K_RATE_CODE_XR_500K 0x07
800 #define ATH5K_RATE_CODE_XR_1M 0x02
801 #define ATH5K_RATE_CODE_XR_2M 0x06
802 #define ATH5K_RATE_CODE_XR_3M 0x01
804 /* adding this flag to rate_code enables short preamble */
805 #define AR5K_SET_SHORT_PREAMBLE 0x04
811 #define AR5K_KEYCACHE_SIZE 8
813 /***********************\
814 HW RELATED DEFINITIONS
815 \***********************/
820 #define AR5K_RSSI_EP_MULTIPLIER (1<<7)
822 #define AR5K_ASSERT_ENTRY(_e, _s) do { \
828 * Hardware interrupt abstraction
832 * enum ath5k_int - Hardware interrupt masks helpers
834 * @AR5K_INT_RX: mask to identify received frame interrupts, of type
835 * AR5K_ISR_RXOK or AR5K_ISR_RXERR
836 * @AR5K_INT_RXDESC: Request RX descriptor/Read RX descriptor (?)
837 * @AR5K_INT_RXNOFRM: No frame received (?)
838 * @AR5K_INT_RXEOL: received End Of List for VEOL (Virtual End Of List). The
839 * Queue Control Unit (QCU) signals an EOL interrupt only if a descriptor's
840 * LinkPtr is NULL. For more details, refer to:
841 * http://www.freepatentsonline.com/20030225739.html
842 * @AR5K_INT_RXORN: Indicates we got RX overrun (eg. no more descriptors).
843 * Note that Rx overrun is not always fatal, on some chips we can continue
844 * operation without reseting the card, that's why int_fatal is not
845 * common for all chips.
846 * @AR5K_INT_TX: mask to identify received frame interrupts, of type
847 * AR5K_ISR_TXOK or AR5K_ISR_TXERR
848 * @AR5K_INT_TXDESC: Request TX descriptor/Read TX status descriptor (?)
849 * @AR5K_INT_TXURN: received when we should increase the TX trigger threshold
850 * We currently do increments on interrupt by
851 * (AR5K_TUNE_MAX_TX_FIFO_THRES - current_trigger_level) / 2
852 * @AR5K_INT_MIB: Indicates the either Management Information Base counters or
853 * one of the PHY error counters reached the maximum value and should be
855 * @AR5K_INT_RXPHY: RX PHY Error
856 * @AR5K_INT_RXKCM: RX Key cache miss
857 * @AR5K_INT_SWBA: SoftWare Beacon Alert - indicates its time to send a
858 * beacon that must be handled in software. The alternative is if you
859 * have VEOL support, in that case you let the hardware deal with things.
860 * @AR5K_INT_BMISS: If in STA mode this indicates we have stopped seeing
861 * beacons from the AP have associated with, we should probably try to
862 * reassociate. When in IBSS mode this might mean we have not received
863 * any beacons from any local stations. Note that every station in an
864 * IBSS schedules to send beacons at the Target Beacon Transmission Time
865 * (TBTT) with a random backoff.
866 * @AR5K_INT_BNR: Beacon Not Ready interrupt - ??
867 * @AR5K_INT_GPIO: GPIO interrupt is used for RF Kill, disabled for now
868 * until properly handled
869 * @AR5K_INT_FATAL: Fatal errors were encountered, typically caused by DMA
870 * errors. These types of errors we can enable seem to be of type
871 * AR5K_SIMR2_MCABT, AR5K_SIMR2_SSERR and AR5K_SIMR2_DPERR.
872 * @AR5K_INT_GLOBAL: Used to clear and set the IER
873 * @AR5K_INT_NOCARD: signals the card has been removed
874 * @AR5K_INT_COMMON: common interrupts shared amogst MACs with the same
877 * These are mapped to take advantage of some common bits
878 * between the MACs, to be able to set intr properties
879 * easier. Some of them are not used yet inside hw.c. Most map
880 * to the respective hw interrupt value as they are common amogst different
884 AR5K_INT_RXOK = 0x00000001,
885 AR5K_INT_RXDESC = 0x00000002,
886 AR5K_INT_RXERR = 0x00000004,
887 AR5K_INT_RXNOFRM = 0x00000008,
888 AR5K_INT_RXEOL = 0x00000010,
889 AR5K_INT_RXORN = 0x00000020,
890 AR5K_INT_TXOK = 0x00000040,
891 AR5K_INT_TXDESC = 0x00000080,
892 AR5K_INT_TXERR = 0x00000100,
893 AR5K_INT_TXNOFRM = 0x00000200,
894 AR5K_INT_TXEOL = 0x00000400,
895 AR5K_INT_TXURN = 0x00000800,
896 AR5K_INT_MIB = 0x00001000,
897 AR5K_INT_SWI = 0x00002000,
898 AR5K_INT_RXPHY = 0x00004000,
899 AR5K_INT_RXKCM = 0x00008000,
900 AR5K_INT_SWBA = 0x00010000,
901 AR5K_INT_BRSSI = 0x00020000,
902 AR5K_INT_BMISS = 0x00040000,
903 AR5K_INT_FATAL = 0x00080000, /* Non common */
904 AR5K_INT_BNR = 0x00100000, /* Non common */
905 AR5K_INT_TIM = 0x00200000, /* Non common */
906 AR5K_INT_DTIM = 0x00400000, /* Non common */
907 AR5K_INT_DTIM_SYNC = 0x00800000, /* Non common */
908 AR5K_INT_GPIO = 0x01000000,
909 AR5K_INT_BCN_TIMEOUT = 0x02000000, /* Non common */
910 AR5K_INT_CAB_TIMEOUT = 0x04000000, /* Non common */
911 AR5K_INT_RX_DOPPLER = 0x08000000, /* Non common */
912 AR5K_INT_QCBRORN = 0x10000000, /* Non common */
913 AR5K_INT_QCBRURN = 0x20000000, /* Non common */
914 AR5K_INT_QTRIG = 0x40000000, /* Non common */
915 AR5K_INT_GLOBAL = 0x80000000,
917 AR5K_INT_COMMON = AR5K_INT_RXOK
939 AR5K_INT_NOCARD = 0xffffffff
942 /* mask which calibration is active at the moment */
943 enum ath5k_calibration_mask {
944 AR5K_CALIBRATION_FULL = 0x01,
945 AR5K_CALIBRATION_SHORT = 0x02,
946 AR5K_CALIBRATION_ANI = 0x04,
952 enum ath5k_power_mode {
953 AR5K_PM_UNDEFINED = 0,
957 AR5K_PM_NETWORK_SLEEP,
961 * These match net80211 definitions (not used in
963 * TODO: Clean this up
965 #define AR5K_LED_INIT 0 /*IEEE80211_S_INIT*/
966 #define AR5K_LED_SCAN 1 /*IEEE80211_S_SCAN*/
967 #define AR5K_LED_AUTH 2 /*IEEE80211_S_AUTH*/
968 #define AR5K_LED_ASSOC 3 /*IEEE80211_S_ASSOC*/
969 #define AR5K_LED_RUN 4 /*IEEE80211_S_RUN*/
971 /* GPIO-controlled software LED */
972 #define AR5K_SOFTLED_PIN 0
973 #define AR5K_SOFTLED_ON 0
974 #define AR5K_SOFTLED_OFF 1
977 * Chipset capabilities -see ath5k_hw_get_capability-
978 * get_capability function is not yet fully implemented
979 * in ath5k so most of these don't work yet...
980 * TODO: Implement these & merge with _TUNE_ stuff above
982 enum ath5k_capability_type {
983 AR5K_CAP_REG_DMN = 0, /* Used to get current reg. domain id */
984 AR5K_CAP_TKIP_MIC = 2, /* Can handle TKIP MIC in hardware */
985 AR5K_CAP_TKIP_SPLIT = 3, /* TKIP uses split keys */
986 AR5K_CAP_PHYCOUNTERS = 4, /* PHY error counters */
987 AR5K_CAP_DIVERSITY = 5, /* Supports fast diversity */
988 AR5K_CAP_NUM_TXQUEUES = 6, /* Used to get max number of hw txqueues */
989 AR5K_CAP_VEOL = 7, /* Supports virtual EOL */
990 AR5K_CAP_COMPRESSION = 8, /* Supports compression */
991 AR5K_CAP_BURST = 9, /* Supports packet bursting */
992 AR5K_CAP_FASTFRAME = 10, /* Supports fast frames */
993 AR5K_CAP_TXPOW = 11, /* Used to get global tx power limit */
994 AR5K_CAP_TPC = 12, /* Can do per-packet tx power control (needed for 802.11a) */
995 AR5K_CAP_BSSIDMASK = 13, /* Supports bssid mask */
996 AR5K_CAP_MCAST_KEYSRCH = 14, /* Supports multicast key search */
997 AR5K_CAP_TSF_ADJUST = 15, /* Supports beacon tsf adjust */
998 AR5K_CAP_XR = 16, /* Supports XR mode */
999 AR5K_CAP_WME_TKIPMIC = 17, /* Supports TKIP MIC when using WMM */
1000 AR5K_CAP_CHAN_HALFRATE = 18, /* Supports half rate channels */
1001 AR5K_CAP_CHAN_QUARTERRATE = 19, /* Supports quarter rate channels */
1002 AR5K_CAP_RFSILENT = 20, /* Supports RFsilent */
1006 /* XXX: we *may* move cap_range stuff to struct wiphy */
1007 struct ath5k_capabilities {
1009 * Supported PHY modes
1010 * (ie. CHANNEL_A, CHANNEL_B, ...)
1012 DECLARE_BITMAP(cap_mode, AR5K_MODE_MAX);
1015 * Frequency range (without regulation restrictions)
1025 * Values stored in the EEPROM (some of them...)
1027 struct ath5k_eeprom_info cap_eeprom;
1036 bool cap_has_phyerr_counters;
1039 /* size of noise floor history (keep it a power of two) */
1040 #define ATH5K_NF_CAL_HIST_MAX 8
1041 struct ath5k_nfcal_hist
1043 s16 index; /* current index into nfval */
1044 s16 nfval[ATH5K_NF_CAL_HIST_MAX]; /* last few noise floors */
1048 * struct avg_val - Helper structure for average calculation
1049 * @avg: contains the actual average value
1050 * @avg_weight: is used internally during calculation to prevent rounding errors
1052 struct ath5k_avg_val {
1057 /***************************************\
1058 HARDWARE ABSTRACTION LAYER STRUCTURE
1059 \***************************************/
1065 #define AR5K_MAX_GPIO 10
1066 #define AR5K_MAX_RF_BANKS 8
1068 /* TODO: Clean up and merge with ath5k_softc */
1070 struct ath_common common;
1072 struct ath5k_softc *ah_sc;
1073 void __iomem *ah_iobase;
1075 enum ath5k_int ah_imr;
1077 struct ieee80211_channel *ah_current_channel;
1078 bool ah_calibration;
1079 bool ah_single_chip;
1081 enum ath5k_version ah_version;
1082 enum ath5k_radio ah_radio;
1086 u16 ah_phy_revision;
1087 u16 ah_radio_5ghz_revision;
1088 u16 ah_radio_2ghz_revision;
1090 #define ah_modes ah_capabilities.cap_mode
1091 #define ah_ee_version ah_capabilities.cap_eeprom.ee_version
1093 u32 ah_limit_tx_retries;
1094 u8 ah_coverage_class;
1095 bool ah_ack_bitrate_high;
1098 /* Antenna Control */
1099 u32 ah_ant_ctl[AR5K_EEPROM_N_MODES][AR5K_ANT_MAX];
1103 bool ah_software_retry;
1105 struct ath5k_capabilities ah_capabilities;
1107 struct ath5k_txq_info ah_txq[AR5K_NUM_TX_QUEUES];
1109 u32 ah_txq_imr_txok;
1110 u32 ah_txq_imr_txerr;
1111 u32 ah_txq_imr_txurn;
1112 u32 ah_txq_imr_txdesc;
1113 u32 ah_txq_imr_txeol;
1114 u32 ah_txq_imr_cbrorn;
1115 u32 ah_txq_imr_cbrurn;
1116 u32 ah_txq_imr_qtrig;
1117 u32 ah_txq_imr_nofrm;
1120 size_t ah_rf_banks_size;
1121 size_t ah_rf_regs_count;
1122 struct ath5k_gain ah_gain;
1123 u8 ah_offset[AR5K_MAX_RF_BANKS];
1127 /* Temporary tables used for interpolation */
1128 u8 tmpL[AR5K_EEPROM_N_PD_GAINS]
1129 [AR5K_EEPROM_POWER_TABLE_SIZE];
1130 u8 tmpR[AR5K_EEPROM_N_PD_GAINS]
1131 [AR5K_EEPROM_POWER_TABLE_SIZE];
1132 u8 txp_pd_table[AR5K_EEPROM_POWER_TABLE_SIZE * 2];
1133 u16 txp_rates_power_table[AR5K_MAX_RATES];
1136 /* Values in 0.25dB units */
1139 /* Values in 0.5dB units */
1142 s16 txp_cck_ofdm_gainf_delta;
1143 /* Value in dB units */
1144 s16 txp_cck_ofdm_pwr_delta;
1150 struct ieee80211_channel r_last_channel;
1153 struct ath5k_nfcal_hist ah_nfcal_hist;
1155 /* average beacon RSSI in our BSS (used by ANI) */
1156 struct ewma ah_beacon_rssi_avg;
1158 /* noise floor from last periodic calibration */
1161 /* Calibration timestamp */
1162 unsigned long ah_cal_next_full;
1163 unsigned long ah_cal_next_ani;
1164 unsigned long ah_cal_next_nf;
1166 /* Calibration mask */
1172 int (*ah_setup_tx_desc)(struct ath5k_hw *, struct ath5k_desc *,
1173 unsigned int, unsigned int, int, enum ath5k_pkt_type,
1174 unsigned int, unsigned int, unsigned int, unsigned int,
1175 unsigned int, unsigned int, unsigned int, unsigned int);
1176 int (*ah_proc_tx_desc)(struct ath5k_hw *, struct ath5k_desc *,
1177 struct ath5k_tx_status *);
1178 int (*ah_proc_rx_desc)(struct ath5k_hw *, struct ath5k_desc *,
1179 struct ath5k_rx_status *);
1186 /* Attach/Detach Functions */
1187 int ath5k_hw_attach(struct ath5k_softc *sc);
1188 void ath5k_hw_detach(struct ath5k_hw *ah);
1190 int ath5k_sysfs_register(struct ath5k_softc *sc);
1191 void ath5k_sysfs_unregister(struct ath5k_softc *sc);
1195 int ath5k_init_leds(struct ath5k_softc *sc);
1196 void ath5k_led_enable(struct ath5k_softc *sc);
1197 void ath5k_led_off(struct ath5k_softc *sc);
1198 void ath5k_unregister_leds(struct ath5k_softc *sc);
1201 /* Reset Functions */
1202 int ath5k_hw_nic_wakeup(struct ath5k_hw *ah, int flags, bool initial);
1203 int ath5k_hw_on_hold(struct ath5k_hw *ah);
1204 int ath5k_hw_reset(struct ath5k_hw *ah, enum nl80211_iftype op_mode,
1205 struct ieee80211_channel *channel, bool change_channel);
1206 int ath5k_hw_register_timeout(struct ath5k_hw *ah, u32 reg, u32 flag, u32 val,
1208 /* Power management functions */
1211 /* Clock rate related functions */
1212 unsigned int ath5k_hw_htoclock(struct ath5k_hw *ah, unsigned int usec);
1213 unsigned int ath5k_hw_clocktoh(struct ath5k_hw *ah, unsigned int clock);
1214 void ath5k_hw_set_clockrate(struct ath5k_hw *ah);
1217 /* DMA Related Functions */
1218 void ath5k_hw_start_rx_dma(struct ath5k_hw *ah);
1219 u32 ath5k_hw_get_rxdp(struct ath5k_hw *ah);
1220 int ath5k_hw_set_rxdp(struct ath5k_hw *ah, u32 phys_addr);
1221 int ath5k_hw_start_tx_dma(struct ath5k_hw *ah, unsigned int queue);
1222 int ath5k_hw_stop_beacon_queue(struct ath5k_hw *ah, unsigned int queue);
1223 u32 ath5k_hw_get_txdp(struct ath5k_hw *ah, unsigned int queue);
1224 int ath5k_hw_set_txdp(struct ath5k_hw *ah, unsigned int queue,
1226 int ath5k_hw_update_tx_triglevel(struct ath5k_hw *ah, bool increase);
1227 /* Interrupt handling */
1228 bool ath5k_hw_is_intr_pending(struct ath5k_hw *ah);
1229 int ath5k_hw_get_isr(struct ath5k_hw *ah, enum ath5k_int *interrupt_mask);
1230 enum ath5k_int ath5k_hw_set_imr(struct ath5k_hw *ah, enum ath5k_int new_mask);
1231 void ath5k_hw_update_mib_counters(struct ath5k_hw *ah);
1232 /* Init/Stop functions */
1233 void ath5k_hw_dma_init(struct ath5k_hw *ah);
1234 int ath5k_hw_dma_stop(struct ath5k_hw *ah);
1236 /* EEPROM access functions */
1237 int ath5k_eeprom_init(struct ath5k_hw *ah);
1238 void ath5k_eeprom_detach(struct ath5k_hw *ah);
1239 int ath5k_eeprom_read_mac(struct ath5k_hw *ah, u8 *mac);
1242 /* Protocol Control Unit Functions */
1243 extern int ath5k_hw_set_opmode(struct ath5k_hw *ah, enum nl80211_iftype opmode);
1244 void ath5k_hw_set_coverage_class(struct ath5k_hw *ah, u8 coverage_class);
1245 /* RX filter control*/
1246 int ath5k_hw_set_lladdr(struct ath5k_hw *ah, const u8 *mac);
1247 void ath5k_hw_set_bssid(struct ath5k_hw *ah);
1248 void ath5k_hw_set_bssid_mask(struct ath5k_hw *ah, const u8 *mask);
1249 void ath5k_hw_set_mcast_filter(struct ath5k_hw *ah, u32 filter0, u32 filter1);
1250 u32 ath5k_hw_get_rx_filter(struct ath5k_hw *ah);
1251 void ath5k_hw_set_rx_filter(struct ath5k_hw *ah, u32 filter);
1252 /* Receive (DRU) start/stop functions */
1253 void ath5k_hw_start_rx_pcu(struct ath5k_hw *ah);
1254 void ath5k_hw_stop_rx_pcu(struct ath5k_hw *ah);
1255 /* Beacon control functions */
1256 u64 ath5k_hw_get_tsf64(struct ath5k_hw *ah);
1257 void ath5k_hw_set_tsf64(struct ath5k_hw *ah, u64 tsf64);
1258 void ath5k_hw_reset_tsf(struct ath5k_hw *ah);
1259 void ath5k_hw_init_beacon(struct ath5k_hw *ah, u32 next_beacon, u32 interval);
1260 bool ath5k_hw_check_beacon_timers(struct ath5k_hw *ah, int intval);
1262 void ath5k_hw_pcu_init(struct ath5k_hw *ah, enum nl80211_iftype op_mode,
1265 /* Queue Control Unit, DFS Control Unit Functions */
1266 int ath5k_hw_get_tx_queueprops(struct ath5k_hw *ah, int queue,
1267 struct ath5k_txq_info *queue_info);
1268 int ath5k_hw_set_tx_queueprops(struct ath5k_hw *ah, int queue,
1269 const struct ath5k_txq_info *queue_info);
1270 int ath5k_hw_setup_tx_queue(struct ath5k_hw *ah,
1271 enum ath5k_tx_queue queue_type,
1272 struct ath5k_txq_info *queue_info);
1273 u32 ath5k_hw_num_tx_pending(struct ath5k_hw *ah, unsigned int queue);
1274 void ath5k_hw_release_tx_queue(struct ath5k_hw *ah, unsigned int queue);
1275 int ath5k_hw_reset_tx_queue(struct ath5k_hw *ah, unsigned int queue);
1276 int ath5k_hw_set_slot_time(struct ath5k_hw *ah, unsigned int slot_time);
1278 int ath5k_hw_init_queues(struct ath5k_hw *ah);
1280 /* Hardware Descriptor Functions */
1281 int ath5k_hw_init_desc_functions(struct ath5k_hw *ah);
1282 int ath5k_hw_setup_rx_desc(struct ath5k_hw *ah, struct ath5k_desc *desc,
1283 u32 size, unsigned int flags);
1284 int ath5k_hw_setup_mrr_tx_desc(struct ath5k_hw *ah, struct ath5k_desc *desc,
1285 unsigned int tx_rate1, u_int tx_tries1, u_int tx_rate2,
1286 u_int tx_tries2, unsigned int tx_rate3, u_int tx_tries3);
1289 /* GPIO Functions */
1290 void ath5k_hw_set_ledstate(struct ath5k_hw *ah, unsigned int state);
1291 int ath5k_hw_set_gpio_input(struct ath5k_hw *ah, u32 gpio);
1292 int ath5k_hw_set_gpio_output(struct ath5k_hw *ah, u32 gpio);
1293 u32 ath5k_hw_get_gpio(struct ath5k_hw *ah, u32 gpio);
1294 int ath5k_hw_set_gpio(struct ath5k_hw *ah, u32 gpio, u32 val);
1295 void ath5k_hw_set_gpio_intr(struct ath5k_hw *ah, unsigned int gpio,
1296 u32 interrupt_level);
1299 /* RFkill Functions */
1300 void ath5k_rfkill_hw_start(struct ath5k_hw *ah);
1301 void ath5k_rfkill_hw_stop(struct ath5k_hw *ah);
1304 /* Misc functions TODO: Cleanup */
1305 int ath5k_hw_set_capabilities(struct ath5k_hw *ah);
1306 int ath5k_hw_get_capability(struct ath5k_hw *ah,
1307 enum ath5k_capability_type cap_type, u32 capability,
1309 int ath5k_hw_enable_pspoll(struct ath5k_hw *ah, u8 *bssid, u16 assoc_id);
1310 int ath5k_hw_disable_pspoll(struct ath5k_hw *ah);
1313 /* Initial register settings functions */
1314 int ath5k_hw_write_initvals(struct ath5k_hw *ah, u8 mode, bool change_channel);
1318 /* Misc PHY functions */
1319 u16 ath5k_hw_radio_revision(struct ath5k_hw *ah, unsigned int chan);
1320 int ath5k_hw_phy_disable(struct ath5k_hw *ah);
1321 /* Gain_F optimization */
1322 enum ath5k_rfgain ath5k_hw_gainf_calibrate(struct ath5k_hw *ah);
1323 int ath5k_hw_rfgain_opt_init(struct ath5k_hw *ah);
1324 /* PHY/RF channel functions */
1325 bool ath5k_channel_ok(struct ath5k_hw *ah, u16 freq, unsigned int flags);
1326 /* PHY calibration */
1327 void ath5k_hw_init_nfcal_hist(struct ath5k_hw *ah);
1328 int ath5k_hw_phy_calibrate(struct ath5k_hw *ah,
1329 struct ieee80211_channel *channel);
1330 void ath5k_hw_update_noise_floor(struct ath5k_hw *ah);
1331 /* Spur mitigation */
1332 bool ath5k_hw_chan_has_spur_noise(struct ath5k_hw *ah,
1333 struct ieee80211_channel *channel);
1334 /* Antenna control */
1335 void ath5k_hw_set_antenna_mode(struct ath5k_hw *ah, u8 ant_mode);
1336 void ath5k_hw_set_antenna_switch(struct ath5k_hw *ah, u8 ee_mode);
1337 /* TX power setup */
1338 int ath5k_hw_set_txpower_limit(struct ath5k_hw *ah, u8 txpower);
1340 int ath5k_hw_phy_init(struct ath5k_hw *ah, struct ieee80211_channel *channel,
1341 u8 mode, u8 ee_mode, u8 freq);
1344 * Functions used internaly
1347 static inline struct ath_common *ath5k_hw_common(struct ath5k_hw *ah)
1352 static inline struct ath_regulatory *ath5k_hw_regulatory(struct ath5k_hw *ah)
1354 return &(ath5k_hw_common(ah)->regulatory);
1357 static inline u32 ath5k_hw_reg_read(struct ath5k_hw *ah, u16 reg)
1359 return ioread32(ah->ah_iobase + reg);
1362 static inline void ath5k_hw_reg_write(struct ath5k_hw *ah, u32 val, u16 reg)
1364 iowrite32(val, ah->ah_iobase + reg);
1367 static inline u32 ath5k_hw_bitswap(u32 val, unsigned int bits)
1369 u32 retval = 0, bit, i;
1371 for (i = 0; i < bits; i++) {
1372 bit = (val >> i) & 1;
1373 retval = (retval << 1) | bit;