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");
36 /* We use the hw_value as an index into our private channel structure */
38 #define CHAN2G(_freq, _idx) { \
39 .center_freq = (_freq), \
44 #define CHAN5G(_freq, _idx) { \
45 .band = IEEE80211_BAND_5GHZ, \
46 .center_freq = (_freq), \
51 /* Some 2 GHz radios are actually tunable on 2312-2732
52 * on 5 MHz steps, we support the channels which we know
53 * we have calibration data for all cards though to make
55 static struct ieee80211_channel ath9k_2ghz_chantable[] = {
56 CHAN2G(2412, 0), /* Channel 1 */
57 CHAN2G(2417, 1), /* Channel 2 */
58 CHAN2G(2422, 2), /* Channel 3 */
59 CHAN2G(2427, 3), /* Channel 4 */
60 CHAN2G(2432, 4), /* Channel 5 */
61 CHAN2G(2437, 5), /* Channel 6 */
62 CHAN2G(2442, 6), /* Channel 7 */
63 CHAN2G(2447, 7), /* Channel 8 */
64 CHAN2G(2452, 8), /* Channel 9 */
65 CHAN2G(2457, 9), /* Channel 10 */
66 CHAN2G(2462, 10), /* Channel 11 */
67 CHAN2G(2467, 11), /* Channel 12 */
68 CHAN2G(2472, 12), /* Channel 13 */
69 CHAN2G(2484, 13), /* Channel 14 */
72 /* Some 5 GHz radios are actually tunable on XXXX-YYYY
73 * on 5 MHz steps, we support the channels which we know
74 * we have calibration data for all cards though to make
76 static struct ieee80211_channel ath9k_5ghz_chantable[] = {
77 /* _We_ call this UNII 1 */
78 CHAN5G(5180, 14), /* Channel 36 */
79 CHAN5G(5200, 15), /* Channel 40 */
80 CHAN5G(5220, 16), /* Channel 44 */
81 CHAN5G(5240, 17), /* Channel 48 */
82 /* _We_ call this UNII 2 */
83 CHAN5G(5260, 18), /* Channel 52 */
84 CHAN5G(5280, 19), /* Channel 56 */
85 CHAN5G(5300, 20), /* Channel 60 */
86 CHAN5G(5320, 21), /* Channel 64 */
87 /* _We_ call this "Middle band" */
88 CHAN5G(5500, 22), /* Channel 100 */
89 CHAN5G(5520, 23), /* Channel 104 */
90 CHAN5G(5540, 24), /* Channel 108 */
91 CHAN5G(5560, 25), /* Channel 112 */
92 CHAN5G(5580, 26), /* Channel 116 */
93 CHAN5G(5600, 27), /* Channel 120 */
94 CHAN5G(5620, 28), /* Channel 124 */
95 CHAN5G(5640, 29), /* Channel 128 */
96 CHAN5G(5660, 30), /* Channel 132 */
97 CHAN5G(5680, 31), /* Channel 136 */
98 CHAN5G(5700, 32), /* Channel 140 */
99 /* _We_ call this UNII 3 */
100 CHAN5G(5745, 33), /* Channel 149 */
101 CHAN5G(5765, 34), /* Channel 153 */
102 CHAN5G(5785, 35), /* Channel 157 */
103 CHAN5G(5805, 36), /* Channel 161 */
104 CHAN5G(5825, 37), /* Channel 165 */
107 /* Atheros hardware rate code addition for short premble */
108 #define SHPCHECK(__hw_rate, __flags) \
109 ((__flags & IEEE80211_RATE_SHORT_PREAMBLE) ? (__hw_rate | 0x04 ) : 0)
111 #define RATE(_bitrate, _hw_rate, _flags) { \
112 .bitrate = (_bitrate), \
114 .hw_value = (_hw_rate), \
115 .hw_value_short = (SHPCHECK(_hw_rate, _flags)) \
118 static struct ieee80211_rate ath9k_legacy_rates[] = {
120 RATE(20, 0x1a, IEEE80211_RATE_SHORT_PREAMBLE),
121 RATE(55, 0x19, IEEE80211_RATE_SHORT_PREAMBLE),
122 RATE(110, 0x18, IEEE80211_RATE_SHORT_PREAMBLE),
133 static void ath9k_deinit_softc(struct ath_softc *sc);
136 * Read and write, they both share the same lock. We do this to serialize
137 * reads and writes on Atheros 802.11n PCI devices only. This is required
138 * as the FIFO on these devices can only accept sanely 2 requests.
141 static void ath9k_iowrite32(void *hw_priv, u32 val, u32 reg_offset)
143 struct ath_hw *ah = (struct ath_hw *) hw_priv;
144 struct ath_common *common = ath9k_hw_common(ah);
145 struct ath_softc *sc = (struct ath_softc *) common->priv;
147 if (ah->config.serialize_regmode == SER_REG_MODE_ON) {
149 spin_lock_irqsave(&sc->sc_serial_rw, flags);
150 iowrite32(val, sc->mem + reg_offset);
151 spin_unlock_irqrestore(&sc->sc_serial_rw, flags);
153 iowrite32(val, sc->mem + reg_offset);
156 static unsigned int ath9k_ioread32(void *hw_priv, u32 reg_offset)
158 struct ath_hw *ah = (struct ath_hw *) hw_priv;
159 struct ath_common *common = ath9k_hw_common(ah);
160 struct ath_softc *sc = (struct ath_softc *) common->priv;
163 if (ah->config.serialize_regmode == SER_REG_MODE_ON) {
165 spin_lock_irqsave(&sc->sc_serial_rw, flags);
166 val = ioread32(sc->mem + reg_offset);
167 spin_unlock_irqrestore(&sc->sc_serial_rw, flags);
169 val = ioread32(sc->mem + reg_offset);
173 static const struct ath_ops ath9k_common_ops = {
174 .read = ath9k_ioread32,
175 .write = ath9k_iowrite32,
178 /**************************/
180 /**************************/
182 static void setup_ht_cap(struct ath_softc *sc,
183 struct ieee80211_sta_ht_cap *ht_info)
185 struct ath_hw *ah = sc->sc_ah;
186 struct ath_common *common = ath9k_hw_common(ah);
187 u8 tx_streams, rx_streams;
190 ht_info->ht_supported = true;
191 ht_info->cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
192 IEEE80211_HT_CAP_SM_PS |
193 IEEE80211_HT_CAP_SGI_40 |
194 IEEE80211_HT_CAP_DSSSCCK40;
196 if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_LDPC)
197 ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING;
199 if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_SGI_20)
200 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
202 ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
203 ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_8;
205 if (AR_SREV_9300_20_OR_LATER(ah))
210 if (AR_SREV_9280_10_OR_LATER(ah)) {
211 if (max_streams >= 2)
212 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
213 ht_info->cap |= (1 << IEEE80211_HT_CAP_RX_STBC_SHIFT);
216 /* set up supported mcs set */
217 memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
218 tx_streams = ath9k_cmn_count_streams(common->tx_chainmask, max_streams);
219 rx_streams = ath9k_cmn_count_streams(common->rx_chainmask, max_streams);
221 ath_print(common, ATH_DBG_CONFIG,
222 "TX streams %d, RX streams: %d\n",
223 tx_streams, rx_streams);
225 if (tx_streams != rx_streams) {
226 ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_RX_DIFF;
227 ht_info->mcs.tx_params |= ((tx_streams - 1) <<
228 IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT);
231 for (i = 0; i < rx_streams; i++)
232 ht_info->mcs.rx_mask[i] = 0xff;
234 ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_DEFINED;
237 static int ath9k_reg_notifier(struct wiphy *wiphy,
238 struct regulatory_request *request)
240 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
241 struct ath_wiphy *aphy = hw->priv;
242 struct ath_softc *sc = aphy->sc;
243 struct ath_regulatory *reg = ath9k_hw_regulatory(sc->sc_ah);
245 return ath_reg_notifier_apply(wiphy, request, reg);
249 * This function will allocate both the DMA descriptor structure, and the
250 * buffers it contains. These are used to contain the descriptors used
253 int ath_descdma_setup(struct ath_softc *sc, struct ath_descdma *dd,
254 struct list_head *head, const char *name,
255 int nbuf, int ndesc, bool is_tx)
257 #define DS2PHYS(_dd, _ds) \
258 ((_dd)->dd_desc_paddr + ((caddr_t)(_ds) - (caddr_t)(_dd)->dd_desc))
259 #define ATH_DESC_4KB_BOUND_CHECK(_daddr) ((((_daddr) & 0xFFF) > 0xF7F) ? 1 : 0)
260 #define ATH_DESC_4KB_BOUND_NUM_SKIPPED(_len) ((_len) / 4096)
261 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
264 int i, bsize, error, desc_len;
266 ath_print(common, ATH_DBG_CONFIG, "%s DMA: %u buffers %u desc/buf\n",
269 INIT_LIST_HEAD(head);
272 desc_len = sc->sc_ah->caps.tx_desc_len;
274 desc_len = sizeof(struct ath_desc);
276 /* ath_desc must be a multiple of DWORDs */
277 if ((desc_len % 4) != 0) {
278 ath_print(common, ATH_DBG_FATAL,
279 "ath_desc not DWORD aligned\n");
280 BUG_ON((desc_len % 4) != 0);
285 dd->dd_desc_len = desc_len * nbuf * ndesc;
288 * Need additional DMA memory because we can't use
289 * descriptors that cross the 4K page boundary. Assume
290 * one skipped descriptor per 4K page.
292 if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_4KB_SPLITTRANS)) {
294 ATH_DESC_4KB_BOUND_NUM_SKIPPED(dd->dd_desc_len);
297 while (ndesc_skipped) {
298 dma_len = ndesc_skipped * desc_len;
299 dd->dd_desc_len += dma_len;
301 ndesc_skipped = ATH_DESC_4KB_BOUND_NUM_SKIPPED(dma_len);
305 /* allocate descriptors */
306 dd->dd_desc = dma_alloc_coherent(sc->dev, dd->dd_desc_len,
307 &dd->dd_desc_paddr, GFP_KERNEL);
308 if (dd->dd_desc == NULL) {
312 ds = (u8 *) dd->dd_desc;
313 ath_print(common, ATH_DBG_CONFIG, "%s DMA map: %p (%u) -> %llx (%u)\n",
314 name, ds, (u32) dd->dd_desc_len,
315 ito64(dd->dd_desc_paddr), /*XXX*/(u32) dd->dd_desc_len);
317 /* allocate buffers */
318 bsize = sizeof(struct ath_buf) * nbuf;
319 bf = kzalloc(bsize, GFP_KERNEL);
326 for (i = 0; i < nbuf; i++, bf++, ds += (desc_len * ndesc)) {
328 bf->bf_daddr = DS2PHYS(dd, ds);
330 if (!(sc->sc_ah->caps.hw_caps &
331 ATH9K_HW_CAP_4KB_SPLITTRANS)) {
333 * Skip descriptor addresses which can cause 4KB
334 * boundary crossing (addr + length) with a 32 dword
337 while (ATH_DESC_4KB_BOUND_CHECK(bf->bf_daddr)) {
338 BUG_ON((caddr_t) bf->bf_desc >=
339 ((caddr_t) dd->dd_desc +
342 ds += (desc_len * ndesc);
344 bf->bf_daddr = DS2PHYS(dd, ds);
347 list_add_tail(&bf->list, head);
351 dma_free_coherent(sc->dev, dd->dd_desc_len, dd->dd_desc,
354 memset(dd, 0, sizeof(*dd));
356 #undef ATH_DESC_4KB_BOUND_CHECK
357 #undef ATH_DESC_4KB_BOUND_NUM_SKIPPED
361 static void ath9k_init_crypto(struct ath_softc *sc)
363 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
366 /* Get the hardware key cache size. */
367 common->keymax = sc->sc_ah->caps.keycache_size;
368 if (common->keymax > ATH_KEYMAX) {
369 ath_print(common, ATH_DBG_ANY,
370 "Warning, using only %u entries in %u key cache\n",
371 ATH_KEYMAX, common->keymax);
372 common->keymax = ATH_KEYMAX;
376 * Reset the key cache since some parts do not
377 * reset the contents on initial power up.
379 for (i = 0; i < common->keymax; i++)
380 ath9k_hw_keyreset(sc->sc_ah, (u16) i);
383 * Check whether the separate key cache entries
384 * are required to handle both tx+rx MIC keys.
385 * With split mic keys the number of stations is limited
386 * to 27 otherwise 59.
388 if (!(sc->sc_ah->misc_mode & AR_PCU_MIC_NEW_LOC_ENA))
389 common->splitmic = 1;
392 static int ath9k_init_btcoex(struct ath_softc *sc)
396 switch (sc->sc_ah->btcoex_hw.scheme) {
397 case ATH_BTCOEX_CFG_NONE:
399 case ATH_BTCOEX_CFG_2WIRE:
400 ath9k_hw_btcoex_init_2wire(sc->sc_ah);
402 case ATH_BTCOEX_CFG_3WIRE:
403 ath9k_hw_btcoex_init_3wire(sc->sc_ah);
404 r = ath_init_btcoex_timer(sc);
407 qnum = sc->tx.hwq_map[WME_AC_BE];
408 ath9k_hw_init_btcoex_hw(sc->sc_ah, qnum);
409 sc->btcoex.bt_stomp_type = ATH_BTCOEX_STOMP_LOW;
419 static int ath9k_init_queues(struct ath_softc *sc)
421 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
424 for (i = 0; i < ARRAY_SIZE(sc->tx.hwq_map); i++)
425 sc->tx.hwq_map[i] = -1;
427 sc->beacon.beaconq = ath9k_hw_beaconq_setup(sc->sc_ah);
428 if (sc->beacon.beaconq == -1) {
429 ath_print(common, ATH_DBG_FATAL,
430 "Unable to setup a beacon xmit queue\n");
434 sc->beacon.cabq = ath_txq_setup(sc, ATH9K_TX_QUEUE_CAB, 0);
435 if (sc->beacon.cabq == NULL) {
436 ath_print(common, ATH_DBG_FATAL,
437 "Unable to setup CAB xmit queue\n");
441 sc->config.cabqReadytime = ATH_CABQ_READY_TIME;
444 if (!ath_tx_setup(sc, WME_AC_BK)) {
445 ath_print(common, ATH_DBG_FATAL,
446 "Unable to setup xmit queue for BK traffic\n");
450 if (!ath_tx_setup(sc, WME_AC_BE)) {
451 ath_print(common, ATH_DBG_FATAL,
452 "Unable to setup xmit queue for BE traffic\n");
455 if (!ath_tx_setup(sc, WME_AC_VI)) {
456 ath_print(common, ATH_DBG_FATAL,
457 "Unable to setup xmit queue for VI traffic\n");
460 if (!ath_tx_setup(sc, WME_AC_VO)) {
461 ath_print(common, ATH_DBG_FATAL,
462 "Unable to setup xmit queue for VO traffic\n");
469 for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++)
470 if (ATH_TXQ_SETUP(sc, i))
471 ath_tx_cleanupq(sc, &sc->tx.txq[i]);
476 static void ath9k_init_channels_rates(struct ath_softc *sc)
478 if (test_bit(ATH9K_MODE_11G, sc->sc_ah->caps.wireless_modes)) {
479 sc->sbands[IEEE80211_BAND_2GHZ].channels = ath9k_2ghz_chantable;
480 sc->sbands[IEEE80211_BAND_2GHZ].band = IEEE80211_BAND_2GHZ;
481 sc->sbands[IEEE80211_BAND_2GHZ].n_channels =
482 ARRAY_SIZE(ath9k_2ghz_chantable);
483 sc->sbands[IEEE80211_BAND_2GHZ].bitrates = ath9k_legacy_rates;
484 sc->sbands[IEEE80211_BAND_2GHZ].n_bitrates =
485 ARRAY_SIZE(ath9k_legacy_rates);
488 if (test_bit(ATH9K_MODE_11A, sc->sc_ah->caps.wireless_modes)) {
489 sc->sbands[IEEE80211_BAND_5GHZ].channels = ath9k_5ghz_chantable;
490 sc->sbands[IEEE80211_BAND_5GHZ].band = IEEE80211_BAND_5GHZ;
491 sc->sbands[IEEE80211_BAND_5GHZ].n_channels =
492 ARRAY_SIZE(ath9k_5ghz_chantable);
493 sc->sbands[IEEE80211_BAND_5GHZ].bitrates =
494 ath9k_legacy_rates + 4;
495 sc->sbands[IEEE80211_BAND_5GHZ].n_bitrates =
496 ARRAY_SIZE(ath9k_legacy_rates) - 4;
500 static void ath9k_init_misc(struct ath_softc *sc)
502 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
505 common->ani.noise_floor = ATH_DEFAULT_NOISE_FLOOR;
506 setup_timer(&common->ani.timer, ath_ani_calibrate, (unsigned long)sc);
508 sc->config.txpowlimit = ATH_TXPOWER_MAX;
510 if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_HT) {
511 sc->sc_flags |= SC_OP_TXAGGR;
512 sc->sc_flags |= SC_OP_RXAGGR;
515 common->tx_chainmask = sc->sc_ah->caps.tx_chainmask;
516 common->rx_chainmask = sc->sc_ah->caps.rx_chainmask;
518 ath9k_hw_set_diversity(sc->sc_ah, true);
519 sc->rx.defant = ath9k_hw_getdefantenna(sc->sc_ah);
521 if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_BSSIDMASK)
522 memcpy(common->bssidmask, ath_bcast_mac, ETH_ALEN);
524 sc->beacon.slottime = ATH9K_SLOT_TIME_9;
526 for (i = 0; i < ARRAY_SIZE(sc->beacon.bslot); i++) {
527 sc->beacon.bslot[i] = NULL;
528 sc->beacon.bslot_aphy[i] = NULL;
532 static int ath9k_init_softc(u16 devid, struct ath_softc *sc, u16 subsysid,
533 const struct ath_bus_ops *bus_ops)
535 struct ath_hw *ah = NULL;
536 struct ath_common *common;
540 ah = kzalloc(sizeof(struct ath_hw), GFP_KERNEL);
544 ah->hw_version.devid = devid;
545 ah->hw_version.subsysid = subsysid;
548 common = ath9k_hw_common(ah);
549 common->ops = &ath9k_common_ops;
550 common->bus_ops = bus_ops;
554 common->debug_mask = ath9k_debug;
556 spin_lock_init(&sc->wiphy_lock);
557 spin_lock_init(&sc->sc_resetlock);
558 spin_lock_init(&sc->sc_serial_rw);
559 spin_lock_init(&sc->sc_pm_lock);
560 mutex_init(&sc->mutex);
561 tasklet_init(&sc->intr_tq, ath9k_tasklet, (unsigned long)sc);
562 tasklet_init(&sc->bcon_tasklet, ath_beacon_tasklet,
566 * Cache line size is used to size and align various
567 * structures used to communicate with the hardware.
569 ath_read_cachesize(common, &csz);
570 common->cachelsz = csz << 2; /* convert to bytes */
572 /* Initializes the hardware for all supported chipsets */
573 ret = ath9k_hw_init(ah);
577 ret = ath9k_init_debug(ah);
579 ath_print(common, ATH_DBG_FATAL,
580 "Unable to create debugfs files\n");
584 ret = ath9k_init_queues(sc);
588 ret = ath9k_init_btcoex(sc);
592 ath9k_init_crypto(sc);
593 ath9k_init_channels_rates(sc);
599 for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++)
600 if (ATH_TXQ_SETUP(sc, i))
601 ath_tx_cleanupq(sc, &sc->tx.txq[i]);
603 ath9k_exit_debug(ah);
607 tasklet_kill(&sc->intr_tq);
608 tasklet_kill(&sc->bcon_tasklet);
616 void ath9k_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw)
618 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
620 hw->flags = IEEE80211_HW_RX_INCLUDES_FCS |
621 IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
622 IEEE80211_HW_SIGNAL_DBM |
623 IEEE80211_HW_SUPPORTS_PS |
624 IEEE80211_HW_PS_NULLFUNC_STACK |
625 IEEE80211_HW_SPECTRUM_MGMT |
626 IEEE80211_HW_REPORTS_TX_ACK_STATUS;
628 if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_HT)
629 hw->flags |= IEEE80211_HW_AMPDU_AGGREGATION;
631 if (AR_SREV_9160_10_OR_LATER(sc->sc_ah) || modparam_nohwcrypt)
632 hw->flags |= IEEE80211_HW_MFP_CAPABLE;
634 hw->wiphy->interface_modes =
635 BIT(NL80211_IFTYPE_AP) |
636 BIT(NL80211_IFTYPE_STATION) |
637 BIT(NL80211_IFTYPE_ADHOC) |
638 BIT(NL80211_IFTYPE_MESH_POINT);
640 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
644 hw->channel_change_time = 5000;
645 hw->max_listen_interval = 10;
646 hw->max_rate_tries = 10;
647 hw->sta_data_size = sizeof(struct ath_node);
648 hw->vif_data_size = sizeof(struct ath_vif);
650 hw->rate_control_algorithm = "ath9k_rate_control";
652 if (test_bit(ATH9K_MODE_11G, sc->sc_ah->caps.wireless_modes))
653 hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
654 &sc->sbands[IEEE80211_BAND_2GHZ];
655 if (test_bit(ATH9K_MODE_11A, sc->sc_ah->caps.wireless_modes))
656 hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
657 &sc->sbands[IEEE80211_BAND_5GHZ];
659 if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_HT) {
660 if (test_bit(ATH9K_MODE_11G, sc->sc_ah->caps.wireless_modes))
661 setup_ht_cap(sc, &sc->sbands[IEEE80211_BAND_2GHZ].ht_cap);
662 if (test_bit(ATH9K_MODE_11A, sc->sc_ah->caps.wireless_modes))
663 setup_ht_cap(sc, &sc->sbands[IEEE80211_BAND_5GHZ].ht_cap);
666 SET_IEEE80211_PERM_ADDR(hw, common->macaddr);
669 int ath9k_init_device(u16 devid, struct ath_softc *sc, u16 subsysid,
670 const struct ath_bus_ops *bus_ops)
672 struct ieee80211_hw *hw = sc->hw;
673 struct ath_common *common;
676 struct ath_regulatory *reg;
678 /* Bring up device */
679 error = ath9k_init_softc(devid, sc, subsysid, bus_ops);
684 common = ath9k_hw_common(ah);
685 ath9k_set_hw_capab(sc, hw);
687 /* Initialize regulatory */
688 error = ath_regd_init(&common->regulatory, sc->hw->wiphy,
693 reg = &common->regulatory;
696 error = ath_tx_init(sc, ATH_TXBUF);
701 error = ath_rx_init(sc, ATH_RXBUF);
705 /* Register with mac80211 */
706 error = ieee80211_register_hw(hw);
710 /* Handle world regulatory */
711 if (!ath_is_world_regd(reg)) {
712 error = regulatory_hint(hw->wiphy, reg->alpha2);
717 INIT_WORK(&sc->paprd_work, ath_paprd_calibrate);
718 INIT_WORK(&sc->chan_work, ath9k_wiphy_chan_work);
719 INIT_DELAYED_WORK(&sc->wiphy_work, ath9k_wiphy_work);
720 sc->wiphy_scheduler_int = msecs_to_jiffies(500);
723 ath_start_rfkill_poll(sc);
728 ieee80211_unregister_hw(hw);
736 ath9k_deinit_softc(sc);
741 /*****************************/
742 /* De-Initialization */
743 /*****************************/
745 static void ath9k_deinit_softc(struct ath_softc *sc)
749 if ((sc->btcoex.no_stomp_timer) &&
750 sc->sc_ah->btcoex_hw.scheme == ATH_BTCOEX_CFG_3WIRE)
751 ath_gen_timer_free(sc->sc_ah, sc->btcoex.no_stomp_timer);
753 for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++)
754 if (ATH_TXQ_SETUP(sc, i))
755 ath_tx_cleanupq(sc, &sc->tx.txq[i]);
757 ath9k_exit_debug(sc->sc_ah);
758 ath9k_hw_deinit(sc->sc_ah);
760 tasklet_kill(&sc->intr_tq);
761 tasklet_kill(&sc->bcon_tasklet);
767 void ath9k_deinit_device(struct ath_softc *sc)
769 struct ieee80211_hw *hw = sc->hw;
774 wiphy_rfkill_stop_polling(sc->hw->wiphy);
777 for (i = 0; i < sc->num_sec_wiphy; i++) {
778 struct ath_wiphy *aphy = sc->sec_wiphy[i];
781 sc->sec_wiphy[i] = NULL;
782 ieee80211_unregister_hw(aphy->hw);
783 ieee80211_free_hw(aphy->hw);
785 kfree(sc->sec_wiphy);
787 ieee80211_unregister_hw(hw);
790 ath9k_deinit_softc(sc);
793 void ath_descdma_cleanup(struct ath_softc *sc,
794 struct ath_descdma *dd,
795 struct list_head *head)
797 dma_free_coherent(sc->dev, dd->dd_desc_len, dd->dd_desc,
800 INIT_LIST_HEAD(head);
801 kfree(dd->dd_bufptr);
802 memset(dd, 0, sizeof(*dd));
805 /************************/
807 /************************/
809 static int __init ath9k_init(void)
813 /* Register rate control algorithm */
814 error = ath_rate_control_register();
817 "ath9k: Unable to register rate control "
823 error = ath9k_debug_create_root();
826 "ath9k: Unable to create debugfs root: %d\n",
828 goto err_rate_unregister;
831 error = ath_pci_init();
834 "ath9k: No PCI devices found, driver not installed.\n");
836 goto err_remove_root;
839 error = ath_ahb_init();
851 ath9k_debug_remove_root();
853 ath_rate_control_unregister();
857 module_init(ath9k_init);
859 static void __exit ath9k_exit(void)
863 ath9k_debug_remove_root();
864 ath_rate_control_unregister();
865 printk(KERN_INFO "%s: Driver unloaded\n", dev_info);
867 module_exit(ath9k_exit);