2 * Copyright (c) 2008-2011 Atheros Communications Inc.
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
19 #include <linux/dma-mapping.h>
20 #include <linux/slab.h>
21 #include <linux/ath9k_platform.h>
22 #include <linux/module.h>
23 #include <linux/relay.h>
24 #include <net/ieee80211_radiotap.h>
28 struct ath9k_eeprom_ctx
{
29 struct completion complete
;
33 static char *dev_info
= "ath9k";
35 MODULE_AUTHOR("Atheros Communications");
36 MODULE_DESCRIPTION("Support for Atheros 802.11n wireless LAN cards.");
37 MODULE_SUPPORTED_DEVICE("Atheros 802.11n WLAN cards");
38 MODULE_LICENSE("Dual BSD/GPL");
40 static unsigned int ath9k_debug
= ATH_DBG_DEFAULT
;
41 module_param_named(debug
, ath9k_debug
, uint
, 0);
42 MODULE_PARM_DESC(debug
, "Debugging mask");
44 int ath9k_modparam_nohwcrypt
;
45 module_param_named(nohwcrypt
, ath9k_modparam_nohwcrypt
, int, 0444);
46 MODULE_PARM_DESC(nohwcrypt
, "Disable hardware encryption");
49 module_param_named(blink
, led_blink
, int, 0444);
50 MODULE_PARM_DESC(blink
, "Enable LED blink on activity");
52 static int ath9k_btcoex_enable
;
53 module_param_named(btcoex_enable
, ath9k_btcoex_enable
, int, 0444);
54 MODULE_PARM_DESC(btcoex_enable
, "Enable wifi-BT coexistence");
56 static int ath9k_enable_diversity
;
57 module_param_named(enable_diversity
, ath9k_enable_diversity
, int, 0444);
58 MODULE_PARM_DESC(enable_diversity
, "Enable Antenna diversity for AR9565");
60 bool is_ath9k_unloaded
;
61 /* We use the hw_value as an index into our private channel structure */
63 #define CHAN2G(_freq, _idx) { \
64 .band = IEEE80211_BAND_2GHZ, \
65 .center_freq = (_freq), \
70 #define CHAN5G(_freq, _idx) { \
71 .band = IEEE80211_BAND_5GHZ, \
72 .center_freq = (_freq), \
77 /* Some 2 GHz radios are actually tunable on 2312-2732
78 * on 5 MHz steps, we support the channels which we know
79 * we have calibration data for all cards though to make
81 static const struct ieee80211_channel ath9k_2ghz_chantable
[] = {
82 CHAN2G(2412, 0), /* Channel 1 */
83 CHAN2G(2417, 1), /* Channel 2 */
84 CHAN2G(2422, 2), /* Channel 3 */
85 CHAN2G(2427, 3), /* Channel 4 */
86 CHAN2G(2432, 4), /* Channel 5 */
87 CHAN2G(2437, 5), /* Channel 6 */
88 CHAN2G(2442, 6), /* Channel 7 */
89 CHAN2G(2447, 7), /* Channel 8 */
90 CHAN2G(2452, 8), /* Channel 9 */
91 CHAN2G(2457, 9), /* Channel 10 */
92 CHAN2G(2462, 10), /* Channel 11 */
93 CHAN2G(2467, 11), /* Channel 12 */
94 CHAN2G(2472, 12), /* Channel 13 */
95 CHAN2G(2484, 13), /* Channel 14 */
98 /* Some 5 GHz radios are actually tunable on XXXX-YYYY
99 * on 5 MHz steps, we support the channels which we know
100 * we have calibration data for all cards though to make
102 static const struct ieee80211_channel ath9k_5ghz_chantable
[] = {
103 /* _We_ call this UNII 1 */
104 CHAN5G(5180, 14), /* Channel 36 */
105 CHAN5G(5200, 15), /* Channel 40 */
106 CHAN5G(5220, 16), /* Channel 44 */
107 CHAN5G(5240, 17), /* Channel 48 */
108 /* _We_ call this UNII 2 */
109 CHAN5G(5260, 18), /* Channel 52 */
110 CHAN5G(5280, 19), /* Channel 56 */
111 CHAN5G(5300, 20), /* Channel 60 */
112 CHAN5G(5320, 21), /* Channel 64 */
113 /* _We_ call this "Middle band" */
114 CHAN5G(5500, 22), /* Channel 100 */
115 CHAN5G(5520, 23), /* Channel 104 */
116 CHAN5G(5540, 24), /* Channel 108 */
117 CHAN5G(5560, 25), /* Channel 112 */
118 CHAN5G(5580, 26), /* Channel 116 */
119 CHAN5G(5600, 27), /* Channel 120 */
120 CHAN5G(5620, 28), /* Channel 124 */
121 CHAN5G(5640, 29), /* Channel 128 */
122 CHAN5G(5660, 30), /* Channel 132 */
123 CHAN5G(5680, 31), /* Channel 136 */
124 CHAN5G(5700, 32), /* Channel 140 */
125 /* _We_ call this UNII 3 */
126 CHAN5G(5745, 33), /* Channel 149 */
127 CHAN5G(5765, 34), /* Channel 153 */
128 CHAN5G(5785, 35), /* Channel 157 */
129 CHAN5G(5805, 36), /* Channel 161 */
130 CHAN5G(5825, 37), /* Channel 165 */
133 /* Atheros hardware rate code addition for short premble */
134 #define SHPCHECK(__hw_rate, __flags) \
135 ((__flags & IEEE80211_RATE_SHORT_PREAMBLE) ? (__hw_rate | 0x04 ) : 0)
137 #define RATE(_bitrate, _hw_rate, _flags) { \
138 .bitrate = (_bitrate), \
140 .hw_value = (_hw_rate), \
141 .hw_value_short = (SHPCHECK(_hw_rate, _flags)) \
144 static struct ieee80211_rate ath9k_legacy_rates
[] = {
146 RATE(20, 0x1a, IEEE80211_RATE_SHORT_PREAMBLE
),
147 RATE(55, 0x19, IEEE80211_RATE_SHORT_PREAMBLE
),
148 RATE(110, 0x18, IEEE80211_RATE_SHORT_PREAMBLE
),
159 #ifdef CONFIG_MAC80211_LEDS
160 static const struct ieee80211_tpt_blink ath9k_tpt_blink
[] = {
161 { .throughput
= 0 * 1024, .blink_time
= 334 },
162 { .throughput
= 1 * 1024, .blink_time
= 260 },
163 { .throughput
= 5 * 1024, .blink_time
= 220 },
164 { .throughput
= 10 * 1024, .blink_time
= 190 },
165 { .throughput
= 20 * 1024, .blink_time
= 170 },
166 { .throughput
= 50 * 1024, .blink_time
= 150 },
167 { .throughput
= 70 * 1024, .blink_time
= 130 },
168 { .throughput
= 100 * 1024, .blink_time
= 110 },
169 { .throughput
= 200 * 1024, .blink_time
= 80 },
170 { .throughput
= 300 * 1024, .blink_time
= 50 },
174 static void ath9k_deinit_softc(struct ath_softc
*sc
);
177 * Read and write, they both share the same lock. We do this to serialize
178 * reads and writes on Atheros 802.11n PCI devices only. This is required
179 * as the FIFO on these devices can only accept sanely 2 requests.
182 static void ath9k_iowrite32(void *hw_priv
, u32 val
, u32 reg_offset
)
184 struct ath_hw
*ah
= (struct ath_hw
*) hw_priv
;
185 struct ath_common
*common
= ath9k_hw_common(ah
);
186 struct ath_softc
*sc
= (struct ath_softc
*) common
->priv
;
188 if (NR_CPUS
> 1 && ah
->config
.serialize_regmode
== SER_REG_MODE_ON
) {
190 spin_lock_irqsave(&sc
->sc_serial_rw
, flags
);
191 iowrite32(val
, sc
->mem
+ reg_offset
);
192 spin_unlock_irqrestore(&sc
->sc_serial_rw
, flags
);
194 iowrite32(val
, sc
->mem
+ reg_offset
);
197 static unsigned int ath9k_ioread32(void *hw_priv
, u32 reg_offset
)
199 struct ath_hw
*ah
= (struct ath_hw
*) hw_priv
;
200 struct ath_common
*common
= ath9k_hw_common(ah
);
201 struct ath_softc
*sc
= (struct ath_softc
*) common
->priv
;
204 if (NR_CPUS
> 1 && ah
->config
.serialize_regmode
== SER_REG_MODE_ON
) {
206 spin_lock_irqsave(&sc
->sc_serial_rw
, flags
);
207 val
= ioread32(sc
->mem
+ reg_offset
);
208 spin_unlock_irqrestore(&sc
->sc_serial_rw
, flags
);
210 val
= ioread32(sc
->mem
+ reg_offset
);
214 static unsigned int __ath9k_reg_rmw(struct ath_softc
*sc
, u32 reg_offset
,
219 val
= ioread32(sc
->mem
+ reg_offset
);
222 iowrite32(val
, sc
->mem
+ reg_offset
);
227 static unsigned int ath9k_reg_rmw(void *hw_priv
, u32 reg_offset
, u32 set
, u32 clr
)
229 struct ath_hw
*ah
= (struct ath_hw
*) hw_priv
;
230 struct ath_common
*common
= ath9k_hw_common(ah
);
231 struct ath_softc
*sc
= (struct ath_softc
*) common
->priv
;
232 unsigned long uninitialized_var(flags
);
235 if (NR_CPUS
> 1 && ah
->config
.serialize_regmode
== SER_REG_MODE_ON
) {
236 spin_lock_irqsave(&sc
->sc_serial_rw
, flags
);
237 val
= __ath9k_reg_rmw(sc
, reg_offset
, set
, clr
);
238 spin_unlock_irqrestore(&sc
->sc_serial_rw
, flags
);
240 val
= __ath9k_reg_rmw(sc
, reg_offset
, set
, clr
);
245 /**************************/
247 /**************************/
249 static void setup_ht_cap(struct ath_softc
*sc
,
250 struct ieee80211_sta_ht_cap
*ht_info
)
252 struct ath_hw
*ah
= sc
->sc_ah
;
253 struct ath_common
*common
= ath9k_hw_common(ah
);
254 u8 tx_streams
, rx_streams
;
257 ht_info
->ht_supported
= true;
258 ht_info
->cap
= IEEE80211_HT_CAP_SUP_WIDTH_20_40
|
259 IEEE80211_HT_CAP_SM_PS
|
260 IEEE80211_HT_CAP_SGI_40
|
261 IEEE80211_HT_CAP_DSSSCCK40
;
263 if (sc
->sc_ah
->caps
.hw_caps
& ATH9K_HW_CAP_LDPC
)
264 ht_info
->cap
|= IEEE80211_HT_CAP_LDPC_CODING
;
266 if (sc
->sc_ah
->caps
.hw_caps
& ATH9K_HW_CAP_SGI_20
)
267 ht_info
->cap
|= IEEE80211_HT_CAP_SGI_20
;
269 ht_info
->ampdu_factor
= IEEE80211_HT_MAX_AMPDU_64K
;
270 ht_info
->ampdu_density
= IEEE80211_HT_MPDU_DENSITY_8
;
272 if (AR_SREV_9330(ah
) || AR_SREV_9485(ah
) || AR_SREV_9565(ah
))
274 else if (AR_SREV_9462(ah
))
276 else if (AR_SREV_9300_20_OR_LATER(ah
))
281 if (AR_SREV_9280_20_OR_LATER(ah
)) {
282 if (max_streams
>= 2)
283 ht_info
->cap
|= IEEE80211_HT_CAP_TX_STBC
;
284 ht_info
->cap
|= (1 << IEEE80211_HT_CAP_RX_STBC_SHIFT
);
287 /* set up supported mcs set */
288 memset(&ht_info
->mcs
, 0, sizeof(ht_info
->mcs
));
289 tx_streams
= ath9k_cmn_count_streams(ah
->txchainmask
, max_streams
);
290 rx_streams
= ath9k_cmn_count_streams(ah
->rxchainmask
, max_streams
);
292 ath_dbg(common
, CONFIG
, "TX streams %d, RX streams: %d\n",
293 tx_streams
, rx_streams
);
295 if (tx_streams
!= rx_streams
) {
296 ht_info
->mcs
.tx_params
|= IEEE80211_HT_MCS_TX_RX_DIFF
;
297 ht_info
->mcs
.tx_params
|= ((tx_streams
- 1) <<
298 IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT
);
301 for (i
= 0; i
< rx_streams
; i
++)
302 ht_info
->mcs
.rx_mask
[i
] = 0xff;
304 ht_info
->mcs
.tx_params
|= IEEE80211_HT_MCS_TX_DEFINED
;
307 static void ath9k_reg_notifier(struct wiphy
*wiphy
,
308 struct regulatory_request
*request
)
310 struct ieee80211_hw
*hw
= wiphy_to_ieee80211_hw(wiphy
);
311 struct ath_softc
*sc
= hw
->priv
;
312 struct ath_hw
*ah
= sc
->sc_ah
;
313 struct ath_regulatory
*reg
= ath9k_hw_regulatory(ah
);
315 ath_reg_notifier_apply(wiphy
, request
, reg
);
319 sc
->config
.txpowlimit
= 2 * ah
->curchan
->chan
->max_power
;
321 ath9k_hw_set_txpowerlimit(ah
, sc
->config
.txpowlimit
, false);
322 sc
->curtxpow
= ath9k_hw_regulatory(ah
)->power_limit
;
323 /* synchronize DFS detector if regulatory domain changed */
324 if (sc
->dfs_detector
!= NULL
)
325 sc
->dfs_detector
->set_dfs_domain(sc
->dfs_detector
,
326 request
->dfs_region
);
327 ath9k_ps_restore(sc
);
332 * This function will allocate both the DMA descriptor structure, and the
333 * buffers it contains. These are used to contain the descriptors used
336 int ath_descdma_setup(struct ath_softc
*sc
, struct ath_descdma
*dd
,
337 struct list_head
*head
, const char *name
,
338 int nbuf
, int ndesc
, bool is_tx
)
340 struct ath_common
*common
= ath9k_hw_common(sc
->sc_ah
);
343 int i
, bsize
, desc_len
;
345 ath_dbg(common
, CONFIG
, "%s DMA: %u buffers %u desc/buf\n",
348 INIT_LIST_HEAD(head
);
351 desc_len
= sc
->sc_ah
->caps
.tx_desc_len
;
353 desc_len
= sizeof(struct ath_desc
);
355 /* ath_desc must be a multiple of DWORDs */
356 if ((desc_len
% 4) != 0) {
357 ath_err(common
, "ath_desc not DWORD aligned\n");
358 BUG_ON((desc_len
% 4) != 0);
362 dd
->dd_desc_len
= desc_len
* nbuf
* ndesc
;
365 * Need additional DMA memory because we can't use
366 * descriptors that cross the 4K page boundary. Assume
367 * one skipped descriptor per 4K page.
369 if (!(sc
->sc_ah
->caps
.hw_caps
& ATH9K_HW_CAP_4KB_SPLITTRANS
)) {
371 ATH_DESC_4KB_BOUND_NUM_SKIPPED(dd
->dd_desc_len
);
374 while (ndesc_skipped
) {
375 dma_len
= ndesc_skipped
* desc_len
;
376 dd
->dd_desc_len
+= dma_len
;
378 ndesc_skipped
= ATH_DESC_4KB_BOUND_NUM_SKIPPED(dma_len
);
382 /* allocate descriptors */
383 dd
->dd_desc
= dmam_alloc_coherent(sc
->dev
, dd
->dd_desc_len
,
384 &dd
->dd_desc_paddr
, GFP_KERNEL
);
388 ds
= (u8
*) dd
->dd_desc
;
389 ath_dbg(common
, CONFIG
, "%s DMA map: %p (%u) -> %llx (%u)\n",
390 name
, ds
, (u32
) dd
->dd_desc_len
,
391 ito64(dd
->dd_desc_paddr
), /*XXX*/(u32
) dd
->dd_desc_len
);
393 /* allocate buffers */
394 bsize
= sizeof(struct ath_buf
) * nbuf
;
395 bf
= devm_kzalloc(sc
->dev
, bsize
, GFP_KERNEL
);
399 for (i
= 0; i
< nbuf
; i
++, bf
++, ds
+= (desc_len
* ndesc
)) {
401 bf
->bf_daddr
= DS2PHYS(dd
, ds
);
403 if (!(sc
->sc_ah
->caps
.hw_caps
&
404 ATH9K_HW_CAP_4KB_SPLITTRANS
)) {
406 * Skip descriptor addresses which can cause 4KB
407 * boundary crossing (addr + length) with a 32 dword
410 while (ATH_DESC_4KB_BOUND_CHECK(bf
->bf_daddr
)) {
411 BUG_ON((caddr_t
) bf
->bf_desc
>=
412 ((caddr_t
) dd
->dd_desc
+
415 ds
+= (desc_len
* ndesc
);
417 bf
->bf_daddr
= DS2PHYS(dd
, ds
);
420 list_add_tail(&bf
->list
, head
);
425 static int ath9k_init_queues(struct ath_softc
*sc
)
429 sc
->beacon
.beaconq
= ath9k_hw_beaconq_setup(sc
->sc_ah
);
430 sc
->beacon
.cabq
= ath_txq_setup(sc
, ATH9K_TX_QUEUE_CAB
, 0);
432 sc
->config
.cabqReadytime
= ATH_CABQ_READY_TIME
;
435 sc
->tx
.uapsdq
= ath_txq_setup(sc
, ATH9K_TX_QUEUE_UAPSD
, 0);
437 for (i
= 0; i
< IEEE80211_NUM_ACS
; i
++) {
438 sc
->tx
.txq_map
[i
] = ath_txq_setup(sc
, ATH9K_TX_QUEUE_DATA
, i
);
439 sc
->tx
.txq_map
[i
]->mac80211_qnum
= i
;
440 sc
->tx
.txq_max_pending
[i
] = ATH_MAX_QDEPTH
;
445 static int ath9k_init_channels_rates(struct ath_softc
*sc
)
449 BUILD_BUG_ON(ARRAY_SIZE(ath9k_2ghz_chantable
) +
450 ARRAY_SIZE(ath9k_5ghz_chantable
) !=
453 if (sc
->sc_ah
->caps
.hw_caps
& ATH9K_HW_CAP_2GHZ
) {
454 channels
= devm_kzalloc(sc
->dev
,
455 sizeof(ath9k_2ghz_chantable
), GFP_KERNEL
);
459 memcpy(channels
, ath9k_2ghz_chantable
,
460 sizeof(ath9k_2ghz_chantable
));
461 sc
->sbands
[IEEE80211_BAND_2GHZ
].channels
= channels
;
462 sc
->sbands
[IEEE80211_BAND_2GHZ
].band
= IEEE80211_BAND_2GHZ
;
463 sc
->sbands
[IEEE80211_BAND_2GHZ
].n_channels
=
464 ARRAY_SIZE(ath9k_2ghz_chantable
);
465 sc
->sbands
[IEEE80211_BAND_2GHZ
].bitrates
= ath9k_legacy_rates
;
466 sc
->sbands
[IEEE80211_BAND_2GHZ
].n_bitrates
=
467 ARRAY_SIZE(ath9k_legacy_rates
);
470 if (sc
->sc_ah
->caps
.hw_caps
& ATH9K_HW_CAP_5GHZ
) {
471 channels
= devm_kzalloc(sc
->dev
,
472 sizeof(ath9k_5ghz_chantable
), GFP_KERNEL
);
476 memcpy(channels
, ath9k_5ghz_chantable
,
477 sizeof(ath9k_5ghz_chantable
));
478 sc
->sbands
[IEEE80211_BAND_5GHZ
].channels
= channels
;
479 sc
->sbands
[IEEE80211_BAND_5GHZ
].band
= IEEE80211_BAND_5GHZ
;
480 sc
->sbands
[IEEE80211_BAND_5GHZ
].n_channels
=
481 ARRAY_SIZE(ath9k_5ghz_chantable
);
482 sc
->sbands
[IEEE80211_BAND_5GHZ
].bitrates
=
483 ath9k_legacy_rates
+ 4;
484 sc
->sbands
[IEEE80211_BAND_5GHZ
].n_bitrates
=
485 ARRAY_SIZE(ath9k_legacy_rates
) - 4;
490 static void ath9k_init_misc(struct ath_softc
*sc
)
492 struct ath_common
*common
= ath9k_hw_common(sc
->sc_ah
);
495 setup_timer(&common
->ani
.timer
, ath_ani_calibrate
, (unsigned long)sc
);
497 sc
->last_rssi
= ATH_RSSI_DUMMY_MARKER
;
498 sc
->config
.txpowlimit
= ATH_TXPOWER_MAX
;
499 memcpy(common
->bssidmask
, ath_bcast_mac
, ETH_ALEN
);
500 sc
->beacon
.slottime
= ATH9K_SLOT_TIME_9
;
502 for (i
= 0; i
< ARRAY_SIZE(sc
->beacon
.bslot
); i
++)
503 sc
->beacon
.bslot
[i
] = NULL
;
505 if (sc
->sc_ah
->caps
.hw_caps
& ATH9K_HW_CAP_ANT_DIV_COMB
)
506 sc
->ant_comb
.count
= ATH_ANT_DIV_COMB_INIT_COUNT
;
508 sc
->spec_config
.enabled
= 0;
509 sc
->spec_config
.short_repeat
= true;
510 sc
->spec_config
.count
= 8;
511 sc
->spec_config
.endless
= false;
512 sc
->spec_config
.period
= 0xFF;
513 sc
->spec_config
.fft_period
= 0xF;
516 static void ath9k_init_platform(struct ath_softc
*sc
)
518 struct ath_hw
*ah
= sc
->sc_ah
;
519 struct ath_common
*common
= ath9k_hw_common(ah
);
521 if (common
->bus_ops
->ath_bus_type
!= ATH_PCI
)
524 if (sc
->driver_data
& (ATH9K_PCI_CUS198
|
526 ah
->config
.xlna_gpio
= 9;
527 ah
->config
.xatten_margin_cfg
= true;
529 ath_info(common
, "Set parameters for %s\n",
530 (sc
->driver_data
& ATH9K_PCI_CUS198
) ?
531 "CUS198" : "CUS230");
532 } else if (sc
->driver_data
& ATH9K_PCI_CUS217
) {
533 ath_info(common
, "CUS217 card detected\n");
537 static void ath9k_eeprom_request_cb(const struct firmware
*eeprom_blob
,
540 struct ath9k_eeprom_ctx
*ec
= ctx
;
543 ec
->ah
->eeprom_blob
= eeprom_blob
;
545 complete(&ec
->complete
);
548 static int ath9k_eeprom_request(struct ath_softc
*sc
, const char *name
)
550 struct ath9k_eeprom_ctx ec
;
551 struct ath_hw
*ah
= ah
= sc
->sc_ah
;
554 /* try to load the EEPROM content asynchronously */
555 init_completion(&ec
.complete
);
558 err
= request_firmware_nowait(THIS_MODULE
, 1, name
, sc
->dev
, GFP_KERNEL
,
559 &ec
, ath9k_eeprom_request_cb
);
561 ath_err(ath9k_hw_common(ah
),
562 "EEPROM request failed\n");
566 wait_for_completion(&ec
.complete
);
568 if (!ah
->eeprom_blob
) {
569 ath_err(ath9k_hw_common(ah
),
570 "Unable to load EEPROM file %s\n", name
);
577 static void ath9k_eeprom_release(struct ath_softc
*sc
)
579 release_firmware(sc
->sc_ah
->eeprom_blob
);
582 static int ath9k_init_softc(u16 devid
, struct ath_softc
*sc
,
583 const struct ath_bus_ops
*bus_ops
)
585 struct ath9k_platform_data
*pdata
= sc
->dev
->platform_data
;
586 struct ath_hw
*ah
= NULL
;
587 struct ath_common
*common
;
591 ah
= devm_kzalloc(sc
->dev
, sizeof(struct ath_hw
), GFP_KERNEL
);
597 ah
->hw_version
.devid
= devid
;
598 ah
->reg_ops
.read
= ath9k_ioread32
;
599 ah
->reg_ops
.write
= ath9k_iowrite32
;
600 ah
->reg_ops
.rmw
= ath9k_reg_rmw
;
601 atomic_set(&ah
->intr_ref_cnt
, -1);
604 sc
->dfs_detector
= dfs_pattern_detector_init(ah
, NL80211_DFS_UNSET
);
607 ah
->ah_flags
|= AH_USE_EEPROM
;
608 sc
->sc_ah
->led_pin
= -1;
610 sc
->sc_ah
->gpio_mask
= pdata
->gpio_mask
;
611 sc
->sc_ah
->gpio_val
= pdata
->gpio_val
;
612 sc
->sc_ah
->led_pin
= pdata
->led_pin
;
613 ah
->is_clk_25mhz
= pdata
->is_clk_25mhz
;
614 ah
->get_mac_revision
= pdata
->get_mac_revision
;
615 ah
->external_reset
= pdata
->external_reset
;
618 common
= ath9k_hw_common(ah
);
619 common
->ops
= &ah
->reg_ops
;
620 common
->bus_ops
= bus_ops
;
624 common
->debug_mask
= ath9k_debug
;
625 common
->btcoex_enabled
= ath9k_btcoex_enable
== 1;
626 common
->disable_ani
= false;
631 ath9k_init_platform(sc
);
634 * Enable Antenna diversity only when BTCOEX is disabled
635 * and the user manually requests the feature.
637 if (!common
->btcoex_enabled
&& ath9k_enable_diversity
)
638 common
->antenna_diversity
= 1;
640 spin_lock_init(&common
->cc_lock
);
642 spin_lock_init(&sc
->sc_serial_rw
);
643 spin_lock_init(&sc
->sc_pm_lock
);
644 mutex_init(&sc
->mutex
);
645 tasklet_init(&sc
->intr_tq
, ath9k_tasklet
, (unsigned long)sc
);
646 tasklet_init(&sc
->bcon_tasklet
, ath9k_beacon_tasklet
,
649 INIT_WORK(&sc
->hw_reset_work
, ath_reset_work
);
650 INIT_WORK(&sc
->hw_check_work
, ath_hw_check
);
651 INIT_WORK(&sc
->paprd_work
, ath_paprd_calibrate
);
652 INIT_DELAYED_WORK(&sc
->hw_pll_work
, ath_hw_pll_work
);
653 setup_timer(&sc
->rx_poll_timer
, ath_rx_poll
, (unsigned long)sc
);
656 * Cache line size is used to size and align various
657 * structures used to communicate with the hardware.
659 ath_read_cachesize(common
, &csz
);
660 common
->cachelsz
= csz
<< 2; /* convert to bytes */
662 if (pdata
&& pdata
->eeprom_name
) {
663 ret
= ath9k_eeprom_request(sc
, pdata
->eeprom_name
);
668 /* Initializes the hardware for all supported chipsets */
669 ret
= ath9k_hw_init(ah
);
673 if (pdata
&& pdata
->macaddr
)
674 memcpy(common
->macaddr
, pdata
->macaddr
, ETH_ALEN
);
676 ret
= ath9k_init_queues(sc
);
680 ret
= ath9k_init_btcoex(sc
);
684 ret
= ath9k_init_channels_rates(sc
);
688 ath9k_cmn_init_crypto(sc
->sc_ah
);
690 ath_fill_led_pin(sc
);
692 if (common
->bus_ops
->aspm_init
)
693 common
->bus_ops
->aspm_init(common
);
698 for (i
= 0; i
< ATH9K_NUM_TX_QUEUES
; i
++)
699 if (ATH_TXQ_SETUP(sc
, i
))
700 ath_tx_cleanupq(sc
, &sc
->tx
.txq
[i
]);
704 ath9k_eeprom_release(sc
);
708 static void ath9k_init_band_txpower(struct ath_softc
*sc
, int band
)
710 struct ieee80211_supported_band
*sband
;
711 struct ieee80211_channel
*chan
;
712 struct ath_hw
*ah
= sc
->sc_ah
;
715 sband
= &sc
->sbands
[band
];
716 for (i
= 0; i
< sband
->n_channels
; i
++) {
717 chan
= &sband
->channels
[i
];
718 ah
->curchan
= &ah
->channels
[chan
->hw_value
];
719 ath9k_cmn_update_ichannel(ah
->curchan
, chan
, NL80211_CHAN_HT20
);
720 ath9k_hw_set_txpowerlimit(ah
, MAX_RATE_POWER
, true);
724 static void ath9k_init_txpower_limits(struct ath_softc
*sc
)
726 struct ath_hw
*ah
= sc
->sc_ah
;
727 struct ath9k_channel
*curchan
= ah
->curchan
;
729 if (ah
->caps
.hw_caps
& ATH9K_HW_CAP_2GHZ
)
730 ath9k_init_band_txpower(sc
, IEEE80211_BAND_2GHZ
);
731 if (ah
->caps
.hw_caps
& ATH9K_HW_CAP_5GHZ
)
732 ath9k_init_band_txpower(sc
, IEEE80211_BAND_5GHZ
);
734 ah
->curchan
= curchan
;
737 void ath9k_reload_chainmask_settings(struct ath_softc
*sc
)
739 if (!(sc
->sc_ah
->caps
.hw_caps
& ATH9K_HW_CAP_HT
))
742 if (sc
->sc_ah
->caps
.hw_caps
& ATH9K_HW_CAP_2GHZ
)
743 setup_ht_cap(sc
, &sc
->sbands
[IEEE80211_BAND_2GHZ
].ht_cap
);
744 if (sc
->sc_ah
->caps
.hw_caps
& ATH9K_HW_CAP_5GHZ
)
745 setup_ht_cap(sc
, &sc
->sbands
[IEEE80211_BAND_5GHZ
].ht_cap
);
748 static const struct ieee80211_iface_limit if_limits
[] = {
749 { .max
= 2048, .types
= BIT(NL80211_IFTYPE_STATION
) |
750 BIT(NL80211_IFTYPE_P2P_CLIENT
) |
751 BIT(NL80211_IFTYPE_WDS
) },
753 #ifdef CONFIG_MAC80211_MESH
754 BIT(NL80211_IFTYPE_MESH_POINT
) |
756 BIT(NL80211_IFTYPE_AP
) |
757 BIT(NL80211_IFTYPE_P2P_GO
) },
761 static const struct ieee80211_iface_limit if_dfs_limits
[] = {
762 { .max
= 1, .types
= BIT(NL80211_IFTYPE_AP
) },
765 static const struct ieee80211_iface_combination if_comb
[] = {
768 .n_limits
= ARRAY_SIZE(if_limits
),
769 .max_interfaces
= 2048,
770 .num_different_channels
= 1,
771 .beacon_int_infra_match
= true,
774 .limits
= if_dfs_limits
,
775 .n_limits
= ARRAY_SIZE(if_dfs_limits
),
777 .num_different_channels
= 1,
778 .beacon_int_infra_match
= true,
779 .radar_detect_widths
= BIT(NL80211_CHAN_NO_HT
) |
780 BIT(NL80211_CHAN_HT20
),
785 static const struct wiphy_wowlan_support ath9k_wowlan_support
= {
786 .flags
= WIPHY_WOWLAN_MAGIC_PKT
| WIPHY_WOWLAN_DISCONNECT
,
787 .n_patterns
= MAX_NUM_USER_PATTERN
,
788 .pattern_min_len
= 1,
789 .pattern_max_len
= MAX_PATTERN_SIZE
,
793 void ath9k_set_hw_capab(struct ath_softc
*sc
, struct ieee80211_hw
*hw
)
795 struct ath_hw
*ah
= sc
->sc_ah
;
796 struct ath_common
*common
= ath9k_hw_common(ah
);
798 hw
->flags
= IEEE80211_HW_RX_INCLUDES_FCS
|
799 IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING
|
800 IEEE80211_HW_SIGNAL_DBM
|
801 IEEE80211_HW_SUPPORTS_PS
|
802 IEEE80211_HW_PS_NULLFUNC_STACK
|
803 IEEE80211_HW_SPECTRUM_MGMT
|
804 IEEE80211_HW_REPORTS_TX_ACK_STATUS
|
805 IEEE80211_HW_SUPPORTS_RC_TABLE
;
807 if (sc
->sc_ah
->caps
.hw_caps
& ATH9K_HW_CAP_HT
) {
808 hw
->flags
|= IEEE80211_HW_AMPDU_AGGREGATION
;
810 if (AR_SREV_9280_20_OR_LATER(ah
))
811 hw
->radiotap_mcs_details
|=
812 IEEE80211_RADIOTAP_MCS_HAVE_STBC
;
815 if (AR_SREV_9160_10_OR_LATER(sc
->sc_ah
) || ath9k_modparam_nohwcrypt
)
816 hw
->flags
|= IEEE80211_HW_MFP_CAPABLE
;
818 hw
->wiphy
->features
|= NL80211_FEATURE_ACTIVE_MONITOR
;
820 hw
->wiphy
->interface_modes
=
821 BIT(NL80211_IFTYPE_P2P_GO
) |
822 BIT(NL80211_IFTYPE_P2P_CLIENT
) |
823 BIT(NL80211_IFTYPE_AP
) |
824 BIT(NL80211_IFTYPE_WDS
) |
825 BIT(NL80211_IFTYPE_STATION
) |
826 BIT(NL80211_IFTYPE_ADHOC
) |
827 BIT(NL80211_IFTYPE_MESH_POINT
);
829 hw
->wiphy
->iface_combinations
= if_comb
;
830 hw
->wiphy
->n_iface_combinations
= ARRAY_SIZE(if_comb
);
832 hw
->wiphy
->flags
&= ~WIPHY_FLAG_PS_ON_BY_DEFAULT
;
834 hw
->wiphy
->flags
|= WIPHY_FLAG_IBSS_RSN
;
835 hw
->wiphy
->flags
|= WIPHY_FLAG_SUPPORTS_TDLS
;
836 hw
->wiphy
->flags
|= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL
;
838 #ifdef CONFIG_PM_SLEEP
839 if ((ah
->caps
.hw_caps
& ATH9K_HW_WOW_DEVICE_CAPABLE
) &&
840 (sc
->driver_data
& ATH9K_PCI_WOW
) &&
841 device_can_wakeup(sc
->dev
))
842 hw
->wiphy
->wowlan
= &ath9k_wowlan_support
;
844 atomic_set(&sc
->wow_sleep_proc_intr
, -1);
845 atomic_set(&sc
->wow_got_bmiss_intr
, -1);
850 hw
->channel_change_time
= 5000;
851 hw
->max_listen_interval
= 1;
852 hw
->max_rate_tries
= 10;
853 hw
->sta_data_size
= sizeof(struct ath_node
);
854 hw
->vif_data_size
= sizeof(struct ath_vif
);
856 hw
->wiphy
->available_antennas_rx
= BIT(ah
->caps
.max_rxchains
) - 1;
857 hw
->wiphy
->available_antennas_tx
= BIT(ah
->caps
.max_txchains
) - 1;
859 /* single chain devices with rx diversity */
860 if (ah
->caps
.hw_caps
& ATH9K_HW_CAP_ANT_DIV_COMB
)
861 hw
->wiphy
->available_antennas_rx
= BIT(0) | BIT(1);
863 sc
->ant_rx
= hw
->wiphy
->available_antennas_rx
;
864 sc
->ant_tx
= hw
->wiphy
->available_antennas_tx
;
866 if (sc
->sc_ah
->caps
.hw_caps
& ATH9K_HW_CAP_2GHZ
)
867 hw
->wiphy
->bands
[IEEE80211_BAND_2GHZ
] =
868 &sc
->sbands
[IEEE80211_BAND_2GHZ
];
869 if (sc
->sc_ah
->caps
.hw_caps
& ATH9K_HW_CAP_5GHZ
)
870 hw
->wiphy
->bands
[IEEE80211_BAND_5GHZ
] =
871 &sc
->sbands
[IEEE80211_BAND_5GHZ
];
873 ath9k_reload_chainmask_settings(sc
);
875 SET_IEEE80211_PERM_ADDR(hw
, common
->macaddr
);
878 int ath9k_init_device(u16 devid
, struct ath_softc
*sc
,
879 const struct ath_bus_ops
*bus_ops
)
881 struct ieee80211_hw
*hw
= sc
->hw
;
882 struct ath_common
*common
;
885 struct ath_regulatory
*reg
;
887 /* Bring up device */
888 error
= ath9k_init_softc(devid
, sc
, bus_ops
);
893 common
= ath9k_hw_common(ah
);
894 ath9k_set_hw_capab(sc
, hw
);
896 /* Initialize regulatory */
897 error
= ath_regd_init(&common
->regulatory
, sc
->hw
->wiphy
,
902 reg
= &common
->regulatory
;
905 error
= ath_tx_init(sc
, ATH_TXBUF
);
910 error
= ath_rx_init(sc
, ATH_RXBUF
);
914 ath9k_init_txpower_limits(sc
);
916 #ifdef CONFIG_MAC80211_LEDS
917 /* must be initialized before ieee80211_register_hw */
918 sc
->led_cdev
.default_trigger
= ieee80211_create_tpt_led_trigger(sc
->hw
,
919 IEEE80211_TPT_LEDTRIG_FL_RADIO
, ath9k_tpt_blink
,
920 ARRAY_SIZE(ath9k_tpt_blink
));
923 /* Register with mac80211 */
924 error
= ieee80211_register_hw(hw
);
928 error
= ath9k_init_debug(ah
);
930 ath_err(common
, "Unable to create debugfs files\n");
934 /* Handle world regulatory */
935 if (!ath_is_world_regd(reg
)) {
936 error
= regulatory_hint(hw
->wiphy
, reg
->alpha2
);
942 ath_start_rfkill_poll(sc
);
947 ath9k_deinit_debug(sc
);
949 ieee80211_unregister_hw(hw
);
953 ath9k_deinit_softc(sc
);
957 /*****************************/
958 /* De-Initialization */
959 /*****************************/
961 static void ath9k_deinit_softc(struct ath_softc
*sc
)
965 ath9k_deinit_btcoex(sc
);
967 for (i
= 0; i
< ATH9K_NUM_TX_QUEUES
; i
++)
968 if (ATH_TXQ_SETUP(sc
, i
))
969 ath_tx_cleanupq(sc
, &sc
->tx
.txq
[i
]);
971 ath9k_hw_deinit(sc
->sc_ah
);
972 if (sc
->dfs_detector
!= NULL
)
973 sc
->dfs_detector
->exit(sc
->dfs_detector
);
975 ath9k_eeprom_release(sc
);
978 void ath9k_deinit_device(struct ath_softc
*sc
)
980 struct ieee80211_hw
*hw
= sc
->hw
;
984 wiphy_rfkill_stop_polling(sc
->hw
->wiphy
);
987 ath9k_ps_restore(sc
);
989 ath9k_deinit_debug(sc
);
990 ieee80211_unregister_hw(hw
);
992 ath9k_deinit_softc(sc
);
995 /************************/
997 /************************/
999 static int __init
ath9k_init(void)
1003 /* Register rate control algorithm */
1004 error
= ath_rate_control_register();
1006 pr_err("Unable to register rate control algorithm: %d\n",
1011 error
= ath_pci_init();
1013 pr_err("No PCI devices found, driver not installed\n");
1015 goto err_rate_unregister
;
1018 error
= ath_ahb_init();
1029 err_rate_unregister
:
1030 ath_rate_control_unregister();
1034 module_init(ath9k_init
);
1036 static void __exit
ath9k_exit(void)
1038 is_ath9k_unloaded
= true;
1041 ath_rate_control_unregister();
1042 pr_info("%s: Driver unloaded\n", dev_info
);
1044 module_exit(ath9k_exit
);