2 * Copyright (c) 2008-2009 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 #include <linux/slab.h>
21 static char *dev_info = "ath9k";
23 MODULE_AUTHOR("Atheros Communications");
24 MODULE_DESCRIPTION("Support for Atheros 802.11n wireless LAN cards.");
25 MODULE_SUPPORTED_DEVICE("Atheros 802.11n WLAN cards");
26 MODULE_LICENSE("Dual BSD/GPL");
28 static unsigned int ath9k_debug = ATH_DBG_DEFAULT;
29 module_param_named(debug, ath9k_debug, uint, 0);
30 MODULE_PARM_DESC(debug, "Debugging mask");
32 int modparam_nohwcrypt;
33 module_param_named(nohwcrypt, modparam_nohwcrypt, int, 0444);
34 MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption");
37 module_param_named(blink, led_blink, int, 0444);
38 MODULE_PARM_DESC(blink, "Enable LED blink on activity");
40 /* We use the hw_value as an index into our private channel structure */
42 #define CHAN2G(_freq, _idx) { \
43 .center_freq = (_freq), \
48 #define CHAN5G(_freq, _idx) { \
49 .band = IEEE80211_BAND_5GHZ, \
50 .center_freq = (_freq), \
55 /* Some 2 GHz radios are actually tunable on 2312-2732
56 * on 5 MHz steps, we support the channels which we know
57 * we have calibration data for all cards though to make
59 static struct ieee80211_channel ath9k_2ghz_chantable[] = {
60 CHAN2G(2412, 0), /* Channel 1 */
61 CHAN2G(2417, 1), /* Channel 2 */
62 CHAN2G(2422, 2), /* Channel 3 */
63 CHAN2G(2427, 3), /* Channel 4 */
64 CHAN2G(2432, 4), /* Channel 5 */
65 CHAN2G(2437, 5), /* Channel 6 */
66 CHAN2G(2442, 6), /* Channel 7 */
67 CHAN2G(2447, 7), /* Channel 8 */
68 CHAN2G(2452, 8), /* Channel 9 */
69 CHAN2G(2457, 9), /* Channel 10 */
70 CHAN2G(2462, 10), /* Channel 11 */
71 CHAN2G(2467, 11), /* Channel 12 */
72 CHAN2G(2472, 12), /* Channel 13 */
73 CHAN2G(2484, 13), /* Channel 14 */
76 /* Some 5 GHz radios are actually tunable on XXXX-YYYY
77 * on 5 MHz steps, we support the channels which we know
78 * we have calibration data for all cards though to make
80 static struct ieee80211_channel ath9k_5ghz_chantable[] = {
81 /* _We_ call this UNII 1 */
82 CHAN5G(5180, 14), /* Channel 36 */
83 CHAN5G(5200, 15), /* Channel 40 */
84 CHAN5G(5220, 16), /* Channel 44 */
85 CHAN5G(5240, 17), /* Channel 48 */
86 /* _We_ call this UNII 2 */
87 CHAN5G(5260, 18), /* Channel 52 */
88 CHAN5G(5280, 19), /* Channel 56 */
89 CHAN5G(5300, 20), /* Channel 60 */
90 CHAN5G(5320, 21), /* Channel 64 */
91 /* _We_ call this "Middle band" */
92 CHAN5G(5500, 22), /* Channel 100 */
93 CHAN5G(5520, 23), /* Channel 104 */
94 CHAN5G(5540, 24), /* Channel 108 */
95 CHAN5G(5560, 25), /* Channel 112 */
96 CHAN5G(5580, 26), /* Channel 116 */
97 CHAN5G(5600, 27), /* Channel 120 */
98 CHAN5G(5620, 28), /* Channel 124 */
99 CHAN5G(5640, 29), /* Channel 128 */
100 CHAN5G(5660, 30), /* Channel 132 */
101 CHAN5G(5680, 31), /* Channel 136 */
102 CHAN5G(5700, 32), /* Channel 140 */
103 /* _We_ call this UNII 3 */
104 CHAN5G(5745, 33), /* Channel 149 */
105 CHAN5G(5765, 34), /* Channel 153 */
106 CHAN5G(5785, 35), /* Channel 157 */
107 CHAN5G(5805, 36), /* Channel 161 */
108 CHAN5G(5825, 37), /* Channel 165 */
111 /* Atheros hardware rate code addition for short premble */
112 #define SHPCHECK(__hw_rate, __flags) \
113 ((__flags & IEEE80211_RATE_SHORT_PREAMBLE) ? (__hw_rate | 0x04 ) : 0)
115 #define RATE(_bitrate, _hw_rate, _flags) { \
116 .bitrate = (_bitrate), \
118 .hw_value = (_hw_rate), \
119 .hw_value_short = (SHPCHECK(_hw_rate, _flags)) \
122 static struct ieee80211_rate ath9k_legacy_rates[] = {
124 RATE(20, 0x1a, IEEE80211_RATE_SHORT_PREAMBLE),
125 RATE(55, 0x19, IEEE80211_RATE_SHORT_PREAMBLE),
126 RATE(110, 0x18, IEEE80211_RATE_SHORT_PREAMBLE),
137 static void ath9k_deinit_softc(struct ath_softc *sc);
140 * Read and write, they both share the same lock. We do this to serialize
141 * reads and writes on Atheros 802.11n PCI devices only. This is required
142 * as the FIFO on these devices can only accept sanely 2 requests.
145 static void ath9k_iowrite32(void *hw_priv, u32 val, u32 reg_offset)
147 struct ath_hw *ah = (struct ath_hw *) hw_priv;
148 struct ath_common *common = ath9k_hw_common(ah);
149 struct ath_softc *sc = (struct ath_softc *) common->priv;
151 if (ah->config.serialize_regmode == SER_REG_MODE_ON) {
153 spin_lock_irqsave(&sc->sc_serial_rw, flags);
154 iowrite32(val, sc->mem + reg_offset);
155 spin_unlock_irqrestore(&sc->sc_serial_rw, flags);
157 iowrite32(val, sc->mem + reg_offset);
160 static unsigned int ath9k_ioread32(void *hw_priv, u32 reg_offset)
162 struct ath_hw *ah = (struct ath_hw *) hw_priv;
163 struct ath_common *common = ath9k_hw_common(ah);
164 struct ath_softc *sc = (struct ath_softc *) common->priv;
167 if (ah->config.serialize_regmode == SER_REG_MODE_ON) {
169 spin_lock_irqsave(&sc->sc_serial_rw, flags);
170 val = ioread32(sc->mem + reg_offset);
171 spin_unlock_irqrestore(&sc->sc_serial_rw, flags);
173 val = ioread32(sc->mem + reg_offset);
177 static const struct ath_ops ath9k_common_ops = {
178 .read = ath9k_ioread32,
179 .write = ath9k_iowrite32,
182 /**************************/
184 /**************************/
186 static void setup_ht_cap(struct ath_softc *sc,
187 struct ieee80211_sta_ht_cap *ht_info)
189 struct ath_hw *ah = sc->sc_ah;
190 struct ath_common *common = ath9k_hw_common(ah);
191 u8 tx_streams, rx_streams;
194 ht_info->ht_supported = true;
195 ht_info->cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
196 IEEE80211_HT_CAP_SM_PS |
197 IEEE80211_HT_CAP_SGI_40 |
198 IEEE80211_HT_CAP_DSSSCCK40;
200 if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_LDPC)
201 ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING;
203 if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_SGI_20)
204 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
206 ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
207 ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_8;
209 if (AR_SREV_9300_20_OR_LATER(ah))
214 if (AR_SREV_9280_10_OR_LATER(ah)) {
215 if (max_streams >= 2)
216 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
217 ht_info->cap |= (1 << IEEE80211_HT_CAP_RX_STBC_SHIFT);
220 /* set up supported mcs set */
221 memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
222 tx_streams = ath9k_cmn_count_streams(common->tx_chainmask, max_streams);
223 rx_streams = ath9k_cmn_count_streams(common->rx_chainmask, max_streams);
225 ath_print(common, ATH_DBG_CONFIG,
226 "TX streams %d, RX streams: %d\n",
227 tx_streams, rx_streams);
229 if (tx_streams != rx_streams) {
230 ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_RX_DIFF;
231 ht_info->mcs.tx_params |= ((tx_streams - 1) <<
232 IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT);
235 for (i = 0; i < rx_streams; i++)
236 ht_info->mcs.rx_mask[i] = 0xff;
238 ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_DEFINED;
241 static int ath9k_reg_notifier(struct wiphy *wiphy,
242 struct regulatory_request *request)
244 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
245 struct ath_wiphy *aphy = hw->priv;
246 struct ath_softc *sc = aphy->sc;
247 struct ath_regulatory *reg = ath9k_hw_regulatory(sc->sc_ah);
249 return ath_reg_notifier_apply(wiphy, request, reg);
253 * This function will allocate both the DMA descriptor structure, and the
254 * buffers it contains. These are used to contain the descriptors used
257 int ath_descdma_setup(struct ath_softc *sc, struct ath_descdma *dd,
258 struct list_head *head, const char *name,
259 int nbuf, int ndesc, bool is_tx)
261 #define DS2PHYS(_dd, _ds) \
262 ((_dd)->dd_desc_paddr + ((caddr_t)(_ds) - (caddr_t)(_dd)->dd_desc))
263 #define ATH_DESC_4KB_BOUND_CHECK(_daddr) ((((_daddr) & 0xFFF) > 0xF7F) ? 1 : 0)
264 #define ATH_DESC_4KB_BOUND_NUM_SKIPPED(_len) ((_len) / 4096)
265 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
268 int i, bsize, error, desc_len;
270 ath_print(common, ATH_DBG_CONFIG, "%s DMA: %u buffers %u desc/buf\n",
273 INIT_LIST_HEAD(head);
276 desc_len = sc->sc_ah->caps.tx_desc_len;
278 desc_len = sizeof(struct ath_desc);
280 /* ath_desc must be a multiple of DWORDs */
281 if ((desc_len % 4) != 0) {
282 ath_print(common, ATH_DBG_FATAL,
283 "ath_desc not DWORD aligned\n");
284 BUG_ON((desc_len % 4) != 0);
289 dd->dd_desc_len = desc_len * nbuf * ndesc;
292 * Need additional DMA memory because we can't use
293 * descriptors that cross the 4K page boundary. Assume
294 * one skipped descriptor per 4K page.
296 if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_4KB_SPLITTRANS)) {
298 ATH_DESC_4KB_BOUND_NUM_SKIPPED(dd->dd_desc_len);
301 while (ndesc_skipped) {
302 dma_len = ndesc_skipped * desc_len;
303 dd->dd_desc_len += dma_len;
305 ndesc_skipped = ATH_DESC_4KB_BOUND_NUM_SKIPPED(dma_len);
309 /* allocate descriptors */
310 dd->dd_desc = dma_alloc_coherent(sc->dev, dd->dd_desc_len,
311 &dd->dd_desc_paddr, GFP_KERNEL);
312 if (dd->dd_desc == NULL) {
316 ds = (u8 *) dd->dd_desc;
317 ath_print(common, ATH_DBG_CONFIG, "%s DMA map: %p (%u) -> %llx (%u)\n",
318 name, ds, (u32) dd->dd_desc_len,
319 ito64(dd->dd_desc_paddr), /*XXX*/(u32) dd->dd_desc_len);
321 /* allocate buffers */
322 bsize = sizeof(struct ath_buf) * nbuf;
323 bf = kzalloc(bsize, GFP_KERNEL);
330 for (i = 0; i < nbuf; i++, bf++, ds += (desc_len * ndesc)) {
332 bf->bf_daddr = DS2PHYS(dd, ds);
334 if (!(sc->sc_ah->caps.hw_caps &
335 ATH9K_HW_CAP_4KB_SPLITTRANS)) {
337 * Skip descriptor addresses which can cause 4KB
338 * boundary crossing (addr + length) with a 32 dword
341 while (ATH_DESC_4KB_BOUND_CHECK(bf->bf_daddr)) {
342 BUG_ON((caddr_t) bf->bf_desc >=
343 ((caddr_t) dd->dd_desc +
346 ds += (desc_len * ndesc);
348 bf->bf_daddr = DS2PHYS(dd, ds);
351 list_add_tail(&bf->list, head);
355 dma_free_coherent(sc->dev, dd->dd_desc_len, dd->dd_desc,
358 memset(dd, 0, sizeof(*dd));
360 #undef ATH_DESC_4KB_BOUND_CHECK
361 #undef ATH_DESC_4KB_BOUND_NUM_SKIPPED
365 static void ath9k_init_crypto(struct ath_softc *sc)
367 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
370 /* Get the hardware key cache size. */
371 common->keymax = sc->sc_ah->caps.keycache_size;
372 if (common->keymax > ATH_KEYMAX) {
373 ath_print(common, ATH_DBG_ANY,
374 "Warning, using only %u entries in %u key cache\n",
375 ATH_KEYMAX, common->keymax);
376 common->keymax = ATH_KEYMAX;
380 * Reset the key cache since some parts do not
381 * reset the contents on initial power up.
383 for (i = 0; i < common->keymax; i++)
384 ath_hw_keyreset(common, (u16) i);
387 * Check whether the separate key cache entries
388 * are required to handle both tx+rx MIC keys.
389 * With split mic keys the number of stations is limited
390 * to 27 otherwise 59.
392 if (sc->sc_ah->misc_mode & AR_PCU_MIC_NEW_LOC_ENA)
393 common->crypt_caps |= ATH_CRYPT_CAP_MIC_COMBINED;
396 static int ath9k_init_btcoex(struct ath_softc *sc)
400 switch (sc->sc_ah->btcoex_hw.scheme) {
401 case ATH_BTCOEX_CFG_NONE:
403 case ATH_BTCOEX_CFG_2WIRE:
404 ath9k_hw_btcoex_init_2wire(sc->sc_ah);
406 case ATH_BTCOEX_CFG_3WIRE:
407 ath9k_hw_btcoex_init_3wire(sc->sc_ah);
408 r = ath_init_btcoex_timer(sc);
411 qnum = sc->tx.hwq_map[WME_AC_BE];
412 ath9k_hw_init_btcoex_hw(sc->sc_ah, qnum);
413 sc->btcoex.bt_stomp_type = ATH_BTCOEX_STOMP_LOW;
423 static int ath9k_init_queues(struct ath_softc *sc)
425 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
428 for (i = 0; i < ARRAY_SIZE(sc->tx.hwq_map); i++)
429 sc->tx.hwq_map[i] = -1;
431 sc->beacon.beaconq = ath9k_hw_beaconq_setup(sc->sc_ah);
432 if (sc->beacon.beaconq == -1) {
433 ath_print(common, ATH_DBG_FATAL,
434 "Unable to setup a beacon xmit queue\n");
438 sc->beacon.cabq = ath_txq_setup(sc, ATH9K_TX_QUEUE_CAB, 0);
439 if (sc->beacon.cabq == NULL) {
440 ath_print(common, ATH_DBG_FATAL,
441 "Unable to setup CAB xmit queue\n");
445 sc->config.cabqReadytime = ATH_CABQ_READY_TIME;
448 if (!ath_tx_setup(sc, WME_AC_BK)) {
449 ath_print(common, ATH_DBG_FATAL,
450 "Unable to setup xmit queue for BK traffic\n");
454 if (!ath_tx_setup(sc, WME_AC_BE)) {
455 ath_print(common, ATH_DBG_FATAL,
456 "Unable to setup xmit queue for BE traffic\n");
459 if (!ath_tx_setup(sc, WME_AC_VI)) {
460 ath_print(common, ATH_DBG_FATAL,
461 "Unable to setup xmit queue for VI traffic\n");
464 if (!ath_tx_setup(sc, WME_AC_VO)) {
465 ath_print(common, ATH_DBG_FATAL,
466 "Unable to setup xmit queue for VO traffic\n");
473 for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++)
474 if (ATH_TXQ_SETUP(sc, i))
475 ath_tx_cleanupq(sc, &sc->tx.txq[i]);
480 static void ath9k_init_channels_rates(struct ath_softc *sc)
482 if (test_bit(ATH9K_MODE_11G, sc->sc_ah->caps.wireless_modes)) {
483 sc->sbands[IEEE80211_BAND_2GHZ].channels = ath9k_2ghz_chantable;
484 sc->sbands[IEEE80211_BAND_2GHZ].band = IEEE80211_BAND_2GHZ;
485 sc->sbands[IEEE80211_BAND_2GHZ].n_channels =
486 ARRAY_SIZE(ath9k_2ghz_chantable);
487 sc->sbands[IEEE80211_BAND_2GHZ].bitrates = ath9k_legacy_rates;
488 sc->sbands[IEEE80211_BAND_2GHZ].n_bitrates =
489 ARRAY_SIZE(ath9k_legacy_rates);
492 if (test_bit(ATH9K_MODE_11A, sc->sc_ah->caps.wireless_modes)) {
493 sc->sbands[IEEE80211_BAND_5GHZ].channels = ath9k_5ghz_chantable;
494 sc->sbands[IEEE80211_BAND_5GHZ].band = IEEE80211_BAND_5GHZ;
495 sc->sbands[IEEE80211_BAND_5GHZ].n_channels =
496 ARRAY_SIZE(ath9k_5ghz_chantable);
497 sc->sbands[IEEE80211_BAND_5GHZ].bitrates =
498 ath9k_legacy_rates + 4;
499 sc->sbands[IEEE80211_BAND_5GHZ].n_bitrates =
500 ARRAY_SIZE(ath9k_legacy_rates) - 4;
504 static void ath9k_init_misc(struct ath_softc *sc)
506 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
509 common->ani.noise_floor = ATH_DEFAULT_NOISE_FLOOR;
510 setup_timer(&common->ani.timer, ath_ani_calibrate, (unsigned long)sc);
512 sc->config.txpowlimit = ATH_TXPOWER_MAX;
514 if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_HT) {
515 sc->sc_flags |= SC_OP_TXAGGR;
516 sc->sc_flags |= SC_OP_RXAGGR;
519 common->tx_chainmask = sc->sc_ah->caps.tx_chainmask;
520 common->rx_chainmask = sc->sc_ah->caps.rx_chainmask;
522 ath9k_hw_set_diversity(sc->sc_ah, true);
523 sc->rx.defant = ath9k_hw_getdefantenna(sc->sc_ah);
525 memcpy(common->bssidmask, ath_bcast_mac, ETH_ALEN);
527 sc->beacon.slottime = ATH9K_SLOT_TIME_9;
529 for (i = 0; i < ARRAY_SIZE(sc->beacon.bslot); i++) {
530 sc->beacon.bslot[i] = NULL;
531 sc->beacon.bslot_aphy[i] = NULL;
534 if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_ANT_DIV_COMB)
535 sc->ant_comb.count = ATH_ANT_DIV_COMB_INIT_COUNT;
538 static int ath9k_init_softc(u16 devid, struct ath_softc *sc, u16 subsysid,
539 const struct ath_bus_ops *bus_ops)
541 struct ath_hw *ah = NULL;
542 struct ath_common *common;
546 ah = kzalloc(sizeof(struct ath_hw), GFP_KERNEL);
550 ah->hw_version.devid = devid;
551 ah->hw_version.subsysid = subsysid;
554 common = ath9k_hw_common(ah);
555 common->ops = &ath9k_common_ops;
556 common->bus_ops = bus_ops;
560 common->debug_mask = ath9k_debug;
562 spin_lock_init(&sc->wiphy_lock);
563 spin_lock_init(&sc->sc_resetlock);
564 spin_lock_init(&sc->sc_serial_rw);
565 spin_lock_init(&sc->sc_pm_lock);
566 mutex_init(&sc->mutex);
567 tasklet_init(&sc->intr_tq, ath9k_tasklet, (unsigned long)sc);
568 tasklet_init(&sc->bcon_tasklet, ath_beacon_tasklet,
572 * Cache line size is used to size and align various
573 * structures used to communicate with the hardware.
575 ath_read_cachesize(common, &csz);
576 common->cachelsz = csz << 2; /* convert to bytes */
578 /* Initializes the hardware for all supported chipsets */
579 ret = ath9k_hw_init(ah);
583 ret = ath9k_init_debug(ah);
585 ath_print(common, ATH_DBG_FATAL,
586 "Unable to create debugfs files\n");
590 ret = ath9k_init_queues(sc);
594 ret = ath9k_init_btcoex(sc);
598 ath9k_init_crypto(sc);
599 ath9k_init_channels_rates(sc);
605 for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++)
606 if (ATH_TXQ_SETUP(sc, i))
607 ath_tx_cleanupq(sc, &sc->tx.txq[i]);
609 ath9k_exit_debug(ah);
613 tasklet_kill(&sc->intr_tq);
614 tasklet_kill(&sc->bcon_tasklet);
622 void ath9k_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw)
624 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
626 hw->flags = IEEE80211_HW_RX_INCLUDES_FCS |
627 IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
628 IEEE80211_HW_SIGNAL_DBM |
629 IEEE80211_HW_SUPPORTS_PS |
630 IEEE80211_HW_PS_NULLFUNC_STACK |
631 IEEE80211_HW_SPECTRUM_MGMT |
632 IEEE80211_HW_REPORTS_TX_ACK_STATUS;
634 if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_HT)
635 hw->flags |= IEEE80211_HW_AMPDU_AGGREGATION;
637 if (AR_SREV_9160_10_OR_LATER(sc->sc_ah) || modparam_nohwcrypt)
638 hw->flags |= IEEE80211_HW_MFP_CAPABLE;
640 hw->wiphy->interface_modes =
641 BIT(NL80211_IFTYPE_AP) |
642 BIT(NL80211_IFTYPE_STATION) |
643 BIT(NL80211_IFTYPE_ADHOC) |
644 BIT(NL80211_IFTYPE_MESH_POINT);
646 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
650 hw->channel_change_time = 5000;
651 hw->max_listen_interval = 10;
652 hw->max_rate_tries = 10;
653 hw->sta_data_size = sizeof(struct ath_node);
654 hw->vif_data_size = sizeof(struct ath_vif);
656 hw->rate_control_algorithm = "ath9k_rate_control";
658 if (test_bit(ATH9K_MODE_11G, sc->sc_ah->caps.wireless_modes))
659 hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
660 &sc->sbands[IEEE80211_BAND_2GHZ];
661 if (test_bit(ATH9K_MODE_11A, sc->sc_ah->caps.wireless_modes))
662 hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
663 &sc->sbands[IEEE80211_BAND_5GHZ];
665 if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_HT) {
666 if (test_bit(ATH9K_MODE_11G, sc->sc_ah->caps.wireless_modes))
667 setup_ht_cap(sc, &sc->sbands[IEEE80211_BAND_2GHZ].ht_cap);
668 if (test_bit(ATH9K_MODE_11A, sc->sc_ah->caps.wireless_modes))
669 setup_ht_cap(sc, &sc->sbands[IEEE80211_BAND_5GHZ].ht_cap);
672 SET_IEEE80211_PERM_ADDR(hw, common->macaddr);
675 int ath9k_init_device(u16 devid, struct ath_softc *sc, u16 subsysid,
676 const struct ath_bus_ops *bus_ops)
678 struct ieee80211_hw *hw = sc->hw;
679 struct ath_common *common;
682 struct ath_regulatory *reg;
684 /* Bring up device */
685 error = ath9k_init_softc(devid, sc, subsysid, bus_ops);
690 common = ath9k_hw_common(ah);
691 ath9k_set_hw_capab(sc, hw);
693 /* Initialize regulatory */
694 error = ath_regd_init(&common->regulatory, sc->hw->wiphy,
699 reg = &common->regulatory;
702 error = ath_tx_init(sc, ATH_TXBUF);
707 error = ath_rx_init(sc, ATH_RXBUF);
711 /* Register with mac80211 */
712 error = ieee80211_register_hw(hw);
716 /* Handle world regulatory */
717 if (!ath_is_world_regd(reg)) {
718 error = regulatory_hint(hw->wiphy, reg->alpha2);
723 INIT_WORK(&sc->hw_check_work, ath_hw_check);
724 INIT_WORK(&sc->paprd_work, ath_paprd_calibrate);
725 INIT_WORK(&sc->chan_work, ath9k_wiphy_chan_work);
726 INIT_DELAYED_WORK(&sc->wiphy_work, ath9k_wiphy_work);
727 sc->wiphy_scheduler_int = msecs_to_jiffies(500);
730 ath_start_rfkill_poll(sc);
735 ieee80211_unregister_hw(hw);
743 ath9k_deinit_softc(sc);
748 /*****************************/
749 /* De-Initialization */
750 /*****************************/
752 static void ath9k_deinit_softc(struct ath_softc *sc)
756 if ((sc->btcoex.no_stomp_timer) &&
757 sc->sc_ah->btcoex_hw.scheme == ATH_BTCOEX_CFG_3WIRE)
758 ath_gen_timer_free(sc->sc_ah, sc->btcoex.no_stomp_timer);
760 for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++)
761 if (ATH_TXQ_SETUP(sc, i))
762 ath_tx_cleanupq(sc, &sc->tx.txq[i]);
764 ath9k_exit_debug(sc->sc_ah);
765 ath9k_hw_deinit(sc->sc_ah);
767 tasklet_kill(&sc->intr_tq);
768 tasklet_kill(&sc->bcon_tasklet);
774 void ath9k_deinit_device(struct ath_softc *sc)
776 struct ieee80211_hw *hw = sc->hw;
781 wiphy_rfkill_stop_polling(sc->hw->wiphy);
784 for (i = 0; i < sc->num_sec_wiphy; i++) {
785 struct ath_wiphy *aphy = sc->sec_wiphy[i];
788 sc->sec_wiphy[i] = NULL;
789 ieee80211_unregister_hw(aphy->hw);
790 ieee80211_free_hw(aphy->hw);
793 ieee80211_unregister_hw(hw);
796 ath9k_deinit_softc(sc);
797 kfree(sc->sec_wiphy);
800 void ath_descdma_cleanup(struct ath_softc *sc,
801 struct ath_descdma *dd,
802 struct list_head *head)
804 dma_free_coherent(sc->dev, dd->dd_desc_len, dd->dd_desc,
807 INIT_LIST_HEAD(head);
808 kfree(dd->dd_bufptr);
809 memset(dd, 0, sizeof(*dd));
812 /************************/
814 /************************/
816 static int __init ath9k_init(void)
820 /* Register rate control algorithm */
821 error = ath_rate_control_register();
824 "ath9k: Unable to register rate control "
830 error = ath9k_debug_create_root();
833 "ath9k: Unable to create debugfs root: %d\n",
835 goto err_rate_unregister;
838 error = ath_pci_init();
841 "ath9k: No PCI devices found, driver not installed.\n");
843 goto err_remove_root;
846 error = ath_ahb_init();
858 ath9k_debug_remove_root();
860 ath_rate_control_unregister();
864 module_init(ath9k_init);
866 static void __exit ath9k_exit(void)
870 ath9k_debug_remove_root();
871 ath_rate_control_unregister();
872 printk(KERN_INFO "%s: Driver unloaded\n", dev_info);
874 module_exit(ath9k_exit);