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.
19 static char *dev_info = "ath9k";
21 MODULE_AUTHOR("Atheros Communications");
22 MODULE_DESCRIPTION("Support for Atheros 802.11n wireless LAN cards.");
23 MODULE_SUPPORTED_DEVICE("Atheros 802.11n WLAN cards");
24 MODULE_LICENSE("Dual BSD/GPL");
26 static unsigned int ath9k_debug = ATH_DBG_DEFAULT;
27 module_param_named(debug, ath9k_debug, uint, 0);
28 MODULE_PARM_DESC(debug, "Debugging mask");
30 int modparam_nohwcrypt;
31 module_param_named(nohwcrypt, modparam_nohwcrypt, int, 0444);
32 MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption");
34 /* We use the hw_value as an index into our private channel structure */
36 #define CHAN2G(_freq, _idx) { \
37 .center_freq = (_freq), \
42 #define CHAN5G(_freq, _idx) { \
43 .band = IEEE80211_BAND_5GHZ, \
44 .center_freq = (_freq), \
49 /* Some 2 GHz radios are actually tunable on 2312-2732
50 * on 5 MHz steps, we support the channels which we know
51 * we have calibration data for all cards though to make
53 static struct ieee80211_channel ath9k_2ghz_chantable[] = {
54 CHAN2G(2412, 0), /* Channel 1 */
55 CHAN2G(2417, 1), /* Channel 2 */
56 CHAN2G(2422, 2), /* Channel 3 */
57 CHAN2G(2427, 3), /* Channel 4 */
58 CHAN2G(2432, 4), /* Channel 5 */
59 CHAN2G(2437, 5), /* Channel 6 */
60 CHAN2G(2442, 6), /* Channel 7 */
61 CHAN2G(2447, 7), /* Channel 8 */
62 CHAN2G(2452, 8), /* Channel 9 */
63 CHAN2G(2457, 9), /* Channel 10 */
64 CHAN2G(2462, 10), /* Channel 11 */
65 CHAN2G(2467, 11), /* Channel 12 */
66 CHAN2G(2472, 12), /* Channel 13 */
67 CHAN2G(2484, 13), /* Channel 14 */
70 /* Some 5 GHz radios are actually tunable on XXXX-YYYY
71 * on 5 MHz steps, we support the channels which we know
72 * we have calibration data for all cards though to make
74 static struct ieee80211_channel ath9k_5ghz_chantable[] = {
75 /* _We_ call this UNII 1 */
76 CHAN5G(5180, 14), /* Channel 36 */
77 CHAN5G(5200, 15), /* Channel 40 */
78 CHAN5G(5220, 16), /* Channel 44 */
79 CHAN5G(5240, 17), /* Channel 48 */
80 /* _We_ call this UNII 2 */
81 CHAN5G(5260, 18), /* Channel 52 */
82 CHAN5G(5280, 19), /* Channel 56 */
83 CHAN5G(5300, 20), /* Channel 60 */
84 CHAN5G(5320, 21), /* Channel 64 */
85 /* _We_ call this "Middle band" */
86 CHAN5G(5500, 22), /* Channel 100 */
87 CHAN5G(5520, 23), /* Channel 104 */
88 CHAN5G(5540, 24), /* Channel 108 */
89 CHAN5G(5560, 25), /* Channel 112 */
90 CHAN5G(5580, 26), /* Channel 116 */
91 CHAN5G(5600, 27), /* Channel 120 */
92 CHAN5G(5620, 28), /* Channel 124 */
93 CHAN5G(5640, 29), /* Channel 128 */
94 CHAN5G(5660, 30), /* Channel 132 */
95 CHAN5G(5680, 31), /* Channel 136 */
96 CHAN5G(5700, 32), /* Channel 140 */
97 /* _We_ call this UNII 3 */
98 CHAN5G(5745, 33), /* Channel 149 */
99 CHAN5G(5765, 34), /* Channel 153 */
100 CHAN5G(5785, 35), /* Channel 157 */
101 CHAN5G(5805, 36), /* Channel 161 */
102 CHAN5G(5825, 37), /* Channel 165 */
105 /* Atheros hardware rate code addition for short premble */
106 #define SHPCHECK(__hw_rate, __flags) \
107 ((__flags & IEEE80211_RATE_SHORT_PREAMBLE) ? (__hw_rate | 0x04 ) : 0)
109 #define RATE(_bitrate, _hw_rate, _flags) { \
110 .bitrate = (_bitrate), \
112 .hw_value = (_hw_rate), \
113 .hw_value_short = (SHPCHECK(_hw_rate, _flags)) \
116 static struct ieee80211_rate ath9k_legacy_rates[] = {
118 RATE(20, 0x1a, IEEE80211_RATE_SHORT_PREAMBLE),
119 RATE(55, 0x19, IEEE80211_RATE_SHORT_PREAMBLE),
120 RATE(110, 0x18, IEEE80211_RATE_SHORT_PREAMBLE),
131 static void ath9k_uninit_hw(struct ath_softc *sc);
134 * Read and write, they both share the same lock. We do this to serialize
135 * reads and writes on Atheros 802.11n PCI devices only. This is required
136 * as the FIFO on these devices can only accept sanely 2 requests.
139 static void ath9k_iowrite32(void *hw_priv, u32 val, u32 reg_offset)
141 struct ath_hw *ah = (struct ath_hw *) hw_priv;
142 struct ath_common *common = ath9k_hw_common(ah);
143 struct ath_softc *sc = (struct ath_softc *) common->priv;
145 if (ah->config.serialize_regmode == SER_REG_MODE_ON) {
147 spin_lock_irqsave(&sc->sc_serial_rw, flags);
148 iowrite32(val, sc->mem + reg_offset);
149 spin_unlock_irqrestore(&sc->sc_serial_rw, flags);
151 iowrite32(val, sc->mem + reg_offset);
154 static unsigned int ath9k_ioread32(void *hw_priv, u32 reg_offset)
156 struct ath_hw *ah = (struct ath_hw *) hw_priv;
157 struct ath_common *common = ath9k_hw_common(ah);
158 struct ath_softc *sc = (struct ath_softc *) common->priv;
161 if (ah->config.serialize_regmode == SER_REG_MODE_ON) {
163 spin_lock_irqsave(&sc->sc_serial_rw, flags);
164 val = ioread32(sc->mem + reg_offset);
165 spin_unlock_irqrestore(&sc->sc_serial_rw, flags);
167 val = ioread32(sc->mem + reg_offset);
171 static const struct ath_ops ath9k_common_ops = {
172 .read = ath9k_ioread32,
173 .write = ath9k_iowrite32,
176 /**************************/
178 /**************************/
180 static void setup_ht_cap(struct ath_softc *sc,
181 struct ieee80211_sta_ht_cap *ht_info)
183 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
184 u8 tx_streams, rx_streams;
186 ht_info->ht_supported = true;
187 ht_info->cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
188 IEEE80211_HT_CAP_SM_PS |
189 IEEE80211_HT_CAP_SGI_40 |
190 IEEE80211_HT_CAP_DSSSCCK40;
192 ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
193 ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_8;
195 /* set up supported mcs set */
196 memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
197 tx_streams = !(common->tx_chainmask & (common->tx_chainmask - 1)) ?
199 rx_streams = !(common->rx_chainmask & (common->rx_chainmask - 1)) ?
202 if (tx_streams != rx_streams) {
203 ath_print(common, ATH_DBG_CONFIG,
204 "TX streams %d, RX streams: %d\n",
205 tx_streams, rx_streams);
206 ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_RX_DIFF;
207 ht_info->mcs.tx_params |= ((tx_streams - 1) <<
208 IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT);
211 ht_info->mcs.rx_mask[0] = 0xff;
213 ht_info->mcs.rx_mask[1] = 0xff;
215 ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_DEFINED;
218 static int ath9k_reg_notifier(struct wiphy *wiphy,
219 struct regulatory_request *request)
221 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
222 struct ath_wiphy *aphy = hw->priv;
223 struct ath_softc *sc = aphy->sc;
224 struct ath_regulatory *reg = ath9k_hw_regulatory(sc->sc_ah);
226 return ath_reg_notifier_apply(wiphy, request, reg);
230 * This function will allocate both the DMA descriptor structure, and the
231 * buffers it contains. These are used to contain the descriptors used
234 int ath_descdma_setup(struct ath_softc *sc, struct ath_descdma *dd,
235 struct list_head *head, const char *name,
238 #define DS2PHYS(_dd, _ds) \
239 ((_dd)->dd_desc_paddr + ((caddr_t)(_ds) - (caddr_t)(_dd)->dd_desc))
240 #define ATH_DESC_4KB_BOUND_CHECK(_daddr) ((((_daddr) & 0xFFF) > 0xF7F) ? 1 : 0)
241 #define ATH_DESC_4KB_BOUND_NUM_SKIPPED(_len) ((_len) / 4096)
242 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
247 ath_print(common, ATH_DBG_CONFIG, "%s DMA: %u buffers %u desc/buf\n",
250 INIT_LIST_HEAD(head);
251 /* ath_desc must be a multiple of DWORDs */
252 if ((sizeof(struct ath_desc) % 4) != 0) {
253 ath_print(common, ATH_DBG_FATAL,
254 "ath_desc not DWORD aligned\n");
255 BUG_ON((sizeof(struct ath_desc) % 4) != 0);
260 dd->dd_desc_len = sizeof(struct ath_desc) * nbuf * ndesc;
263 * Need additional DMA memory because we can't use
264 * descriptors that cross the 4K page boundary. Assume
265 * one skipped descriptor per 4K page.
267 if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_4KB_SPLITTRANS)) {
269 ATH_DESC_4KB_BOUND_NUM_SKIPPED(dd->dd_desc_len);
272 while (ndesc_skipped) {
273 dma_len = ndesc_skipped * sizeof(struct ath_desc);
274 dd->dd_desc_len += dma_len;
276 ndesc_skipped = ATH_DESC_4KB_BOUND_NUM_SKIPPED(dma_len);
280 /* allocate descriptors */
281 dd->dd_desc = dma_alloc_coherent(sc->dev, dd->dd_desc_len,
282 &dd->dd_desc_paddr, GFP_KERNEL);
283 if (dd->dd_desc == NULL) {
288 ath_print(common, ATH_DBG_CONFIG, "%s DMA map: %p (%u) -> %llx (%u)\n",
289 name, ds, (u32) dd->dd_desc_len,
290 ito64(dd->dd_desc_paddr), /*XXX*/(u32) dd->dd_desc_len);
292 /* allocate buffers */
293 bsize = sizeof(struct ath_buf) * nbuf;
294 bf = kzalloc(bsize, GFP_KERNEL);
301 for (i = 0; i < nbuf; i++, bf++, ds += ndesc) {
303 bf->bf_daddr = DS2PHYS(dd, ds);
305 if (!(sc->sc_ah->caps.hw_caps &
306 ATH9K_HW_CAP_4KB_SPLITTRANS)) {
308 * Skip descriptor addresses which can cause 4KB
309 * boundary crossing (addr + length) with a 32 dword
312 while (ATH_DESC_4KB_BOUND_CHECK(bf->bf_daddr)) {
313 BUG_ON((caddr_t) bf->bf_desc >=
314 ((caddr_t) dd->dd_desc +
319 bf->bf_daddr = DS2PHYS(dd, ds);
322 list_add_tail(&bf->list, head);
326 dma_free_coherent(sc->dev, dd->dd_desc_len, dd->dd_desc,
329 memset(dd, 0, sizeof(*dd));
331 #undef ATH_DESC_4KB_BOUND_CHECK
332 #undef ATH_DESC_4KB_BOUND_NUM_SKIPPED
336 static int ath_init_softc(u16 devid, struct ath_softc *sc, u16 subsysid,
337 const struct ath_bus_ops *bus_ops)
339 struct ath_hw *ah = NULL;
340 struct ath_common *common;
345 /* XXX: hardware will not be ready until ath_open() being called */
346 sc->sc_flags |= SC_OP_INVALID;
348 spin_lock_init(&sc->wiphy_lock);
349 spin_lock_init(&sc->sc_resetlock);
350 spin_lock_init(&sc->sc_serial_rw);
351 spin_lock_init(&sc->sc_pm_lock);
352 mutex_init(&sc->mutex);
353 tasklet_init(&sc->intr_tq, ath9k_tasklet, (unsigned long)sc);
354 tasklet_init(&sc->bcon_tasklet, ath_beacon_tasklet,
357 ah = kzalloc(sizeof(struct ath_hw), GFP_KERNEL);
361 ah->hw_version.devid = devid;
362 ah->hw_version.subsysid = subsysid;
365 common = ath9k_hw_common(ah);
366 common->ops = &ath9k_common_ops;
367 common->bus_ops = bus_ops;
371 common->debug_mask = ath9k_debug;
374 * Cache line size is used to size and align various
375 * structures used to communicate with the hardware.
377 ath_read_cachesize(common, &csz);
378 /* XXX assert csz is non-zero */
379 common->cachelsz = csz << 2; /* convert to bytes */
381 r = ath9k_hw_init(ah);
383 ath_print(common, ATH_DBG_FATAL,
384 "Unable to initialize hardware; "
385 "initialization status: %d\n", r);
389 if (ath9k_init_debug(ah) < 0) {
390 ath_print(common, ATH_DBG_FATAL,
391 "Unable to create debugfs files\n");
395 /* Get the hardware key cache size. */
396 common->keymax = ah->caps.keycache_size;
397 if (common->keymax > ATH_KEYMAX) {
398 ath_print(common, ATH_DBG_ANY,
399 "Warning, using only %u entries in %u key cache\n",
400 ATH_KEYMAX, common->keymax);
401 common->keymax = ATH_KEYMAX;
405 * Reset the key cache since some parts do not
406 * reset the contents on initial power up.
408 for (i = 0; i < common->keymax; i++)
409 ath9k_hw_keyreset(ah, (u16) i);
411 /* default to MONITOR mode */
412 sc->sc_ah->opmode = NL80211_IFTYPE_MONITOR;
415 * Allocate hardware transmit queues: one queue for
416 * beacon frames and one data queue for each QoS
417 * priority. Note that the hal handles reseting
418 * these queues at the needed time.
420 sc->beacon.beaconq = ath9k_hw_beaconq_setup(ah);
421 if (sc->beacon.beaconq == -1) {
422 ath_print(common, ATH_DBG_FATAL,
423 "Unable to setup a beacon xmit queue\n");
427 sc->beacon.cabq = ath_txq_setup(sc, ATH9K_TX_QUEUE_CAB, 0);
428 if (sc->beacon.cabq == NULL) {
429 ath_print(common, ATH_DBG_FATAL,
430 "Unable to setup CAB xmit queue\n");
435 sc->config.cabqReadytime = ATH_CABQ_READY_TIME;
438 for (i = 0; i < ARRAY_SIZE(sc->tx.hwq_map); i++)
439 sc->tx.hwq_map[i] = -1;
441 /* Setup data queues */
442 /* NB: ensure BK queue is the lowest priority h/w queue */
443 if (!ath_tx_setup(sc, ATH9K_WME_AC_BK)) {
444 ath_print(common, ATH_DBG_FATAL,
445 "Unable to setup xmit queue for BK traffic\n");
450 if (!ath_tx_setup(sc, ATH9K_WME_AC_BE)) {
451 ath_print(common, ATH_DBG_FATAL,
452 "Unable to setup xmit queue for BE traffic\n");
456 if (!ath_tx_setup(sc, ATH9K_WME_AC_VI)) {
457 ath_print(common, ATH_DBG_FATAL,
458 "Unable to setup xmit queue for VI traffic\n");
462 if (!ath_tx_setup(sc, ATH9K_WME_AC_VO)) {
463 ath_print(common, ATH_DBG_FATAL,
464 "Unable to setup xmit queue for VO traffic\n");
469 /* Initializes the noise floor to a reasonable default value.
470 * Later on this will be updated during ANI processing. */
472 common->ani.noise_floor = ATH_DEFAULT_NOISE_FLOOR;
473 setup_timer(&common->ani.timer, ath_ani_calibrate, (unsigned long)sc);
475 if (ath9k_hw_getcapability(ah, ATH9K_CAP_CIPHER,
476 ATH9K_CIPHER_TKIP, NULL)) {
478 * Whether we should enable h/w TKIP MIC.
479 * XXX: if we don't support WME TKIP MIC, then we wouldn't
480 * report WMM capable, so it's always safe to turn on
481 * TKIP MIC in this case.
483 ath9k_hw_setcapability(sc->sc_ah, ATH9K_CAP_TKIP_MIC,
488 * Check whether the separate key cache entries
489 * are required to handle both tx+rx MIC keys.
490 * With split mic keys the number of stations is limited
491 * to 27 otherwise 59.
493 if (ath9k_hw_getcapability(ah, ATH9K_CAP_CIPHER,
494 ATH9K_CIPHER_TKIP, NULL)
495 && ath9k_hw_getcapability(ah, ATH9K_CAP_CIPHER,
496 ATH9K_CIPHER_MIC, NULL)
497 && ath9k_hw_getcapability(ah, ATH9K_CAP_TKIP_SPLIT,
499 common->splitmic = 1;
501 /* turn on mcast key search if possible */
502 if (!ath9k_hw_getcapability(ah, ATH9K_CAP_MCAST_KEYSRCH, 0, NULL))
503 (void)ath9k_hw_setcapability(ah, ATH9K_CAP_MCAST_KEYSRCH, 1,
506 sc->config.txpowlimit = ATH_TXPOWER_MAX;
508 /* 11n Capabilities */
509 if (ah->caps.hw_caps & ATH9K_HW_CAP_HT) {
510 sc->sc_flags |= SC_OP_TXAGGR;
511 sc->sc_flags |= SC_OP_RXAGGR;
514 common->tx_chainmask = ah->caps.tx_chainmask;
515 common->rx_chainmask = ah->caps.rx_chainmask;
517 ath9k_hw_setcapability(ah, ATH9K_CAP_DIVERSITY, 1, true, NULL);
518 sc->rx.defant = ath9k_hw_getdefantenna(ah);
520 if (ah->caps.hw_caps & ATH9K_HW_CAP_BSSIDMASK)
521 memcpy(common->bssidmask, ath_bcast_mac, ETH_ALEN);
523 sc->beacon.slottime = ATH9K_SLOT_TIME_9; /* default to short slot time */
525 /* initialize beacon slots */
526 for (i = 0; i < ARRAY_SIZE(sc->beacon.bslot); i++) {
527 sc->beacon.bslot[i] = NULL;
528 sc->beacon.bslot_aphy[i] = NULL;
531 /* setup channels and rates */
533 if (test_bit(ATH9K_MODE_11G, sc->sc_ah->caps.wireless_modes)) {
534 sc->sbands[IEEE80211_BAND_2GHZ].channels = ath9k_2ghz_chantable;
535 sc->sbands[IEEE80211_BAND_2GHZ].band = IEEE80211_BAND_2GHZ;
536 sc->sbands[IEEE80211_BAND_2GHZ].n_channels =
537 ARRAY_SIZE(ath9k_2ghz_chantable);
538 sc->sbands[IEEE80211_BAND_2GHZ].bitrates = ath9k_legacy_rates;
539 sc->sbands[IEEE80211_BAND_2GHZ].n_bitrates =
540 ARRAY_SIZE(ath9k_legacy_rates);
543 if (test_bit(ATH9K_MODE_11A, sc->sc_ah->caps.wireless_modes)) {
544 sc->sbands[IEEE80211_BAND_5GHZ].channels = ath9k_5ghz_chantable;
545 sc->sbands[IEEE80211_BAND_5GHZ].band = IEEE80211_BAND_5GHZ;
546 sc->sbands[IEEE80211_BAND_5GHZ].n_channels =
547 ARRAY_SIZE(ath9k_5ghz_chantable);
548 sc->sbands[IEEE80211_BAND_5GHZ].bitrates =
549 ath9k_legacy_rates + 4;
550 sc->sbands[IEEE80211_BAND_5GHZ].n_bitrates =
551 ARRAY_SIZE(ath9k_legacy_rates) - 4;
554 switch (ah->btcoex_hw.scheme) {
555 case ATH_BTCOEX_CFG_NONE:
557 case ATH_BTCOEX_CFG_2WIRE:
558 ath9k_hw_btcoex_init_2wire(ah);
560 case ATH_BTCOEX_CFG_3WIRE:
561 ath9k_hw_btcoex_init_3wire(ah);
562 r = ath_init_btcoex_timer(sc);
565 qnum = ath_tx_get_qnum(sc, ATH9K_TX_QUEUE_DATA, ATH9K_WME_AC_BE);
566 ath9k_hw_init_btcoex_hw(ah, qnum);
567 sc->btcoex.bt_stomp_type = ATH_BTCOEX_STOMP_LOW;
576 /* cleanup tx queues */
577 for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++)
578 if (ATH_TXQ_SETUP(sc, i))
579 ath_tx_cleanupq(sc, &sc->tx.txq[i]);
586 void ath_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw)
588 hw->flags = IEEE80211_HW_RX_INCLUDES_FCS |
589 IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
590 IEEE80211_HW_SIGNAL_DBM |
591 IEEE80211_HW_AMPDU_AGGREGATION |
592 IEEE80211_HW_SUPPORTS_PS |
593 IEEE80211_HW_PS_NULLFUNC_STACK |
594 IEEE80211_HW_SPECTRUM_MGMT;
596 if (AR_SREV_9160_10_OR_LATER(sc->sc_ah) || modparam_nohwcrypt)
597 hw->flags |= IEEE80211_HW_MFP_CAPABLE;
599 hw->wiphy->interface_modes =
600 BIT(NL80211_IFTYPE_AP) |
601 BIT(NL80211_IFTYPE_STATION) |
602 BIT(NL80211_IFTYPE_ADHOC) |
603 BIT(NL80211_IFTYPE_MESH_POINT);
605 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
609 hw->channel_change_time = 5000;
610 hw->max_listen_interval = 10;
611 /* Hardware supports 10 but we use 4 */
612 hw->max_rate_tries = 4;
613 hw->sta_data_size = sizeof(struct ath_node);
614 hw->vif_data_size = sizeof(struct ath_vif);
616 hw->rate_control_algorithm = "ath9k_rate_control";
618 if (test_bit(ATH9K_MODE_11G, sc->sc_ah->caps.wireless_modes))
619 hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
620 &sc->sbands[IEEE80211_BAND_2GHZ];
621 if (test_bit(ATH9K_MODE_11A, sc->sc_ah->caps.wireless_modes))
622 hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
623 &sc->sbands[IEEE80211_BAND_5GHZ];
626 /* Device driver core initialization */
627 int ath_init_device(u16 devid, struct ath_softc *sc, u16 subsysid,
628 const struct ath_bus_ops *bus_ops)
630 struct ieee80211_hw *hw = sc->hw;
631 struct ath_common *common;
634 struct ath_regulatory *reg;
636 dev_dbg(sc->dev, "Attach ATH hw\n");
638 error = ath_init_softc(devid, sc, subsysid, bus_ops);
643 common = ath9k_hw_common(ah);
645 /* get mac address from hardware and set in mac80211 */
647 SET_IEEE80211_PERM_ADDR(hw, common->macaddr);
649 ath_set_hw_capab(sc, hw);
651 error = ath_regd_init(&common->regulatory, sc->hw->wiphy,
656 reg = &common->regulatory;
658 if (ah->caps.hw_caps & ATH9K_HW_CAP_HT) {
659 if (test_bit(ATH9K_MODE_11G, ah->caps.wireless_modes))
661 &sc->sbands[IEEE80211_BAND_2GHZ].ht_cap);
662 if (test_bit(ATH9K_MODE_11A, ah->caps.wireless_modes))
664 &sc->sbands[IEEE80211_BAND_5GHZ].ht_cap);
667 /* initialize tx/rx engine */
668 error = ath_tx_init(sc, ATH_TXBUF);
672 error = ath_rx_init(sc, ATH_RXBUF);
676 INIT_WORK(&sc->chan_work, ath9k_wiphy_chan_work);
677 INIT_DELAYED_WORK(&sc->wiphy_work, ath9k_wiphy_work);
678 sc->wiphy_scheduler_int = msecs_to_jiffies(500);
680 error = ieee80211_register_hw(hw);
682 if (!ath_is_world_regd(reg)) {
683 error = regulatory_hint(hw->wiphy, reg->alpha2);
688 /* Initialize LED control */
691 ath_start_rfkill_poll(sc);
696 /* cleanup tx queues */
697 for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++)
698 if (ATH_TXQ_SETUP(sc, i))
699 ath_tx_cleanupq(sc, &sc->tx.txq[i]);
706 /*****************************/
707 /* De-Initialization */
708 /*****************************/
710 static void ath9k_uninit_hw(struct ath_softc *sc)
712 struct ath_hw *ah = sc->sc_ah;
716 ath9k_exit_debug(ah);
721 static void ath_clean_core(struct ath_softc *sc)
723 struct ieee80211_hw *hw = sc->hw;
724 struct ath_hw *ah = sc->sc_ah;
729 dev_dbg(sc->dev, "Detach ATH hw\n");
732 wiphy_rfkill_stop_polling(sc->hw->wiphy);
734 for (i = 0; i < sc->num_sec_wiphy; i++) {
735 struct ath_wiphy *aphy = sc->sec_wiphy[i];
738 sc->sec_wiphy[i] = NULL;
739 ieee80211_unregister_hw(aphy->hw);
740 ieee80211_free_hw(aphy->hw);
742 ieee80211_unregister_hw(hw);
746 tasklet_kill(&sc->intr_tq);
747 tasklet_kill(&sc->bcon_tasklet);
749 if (!(sc->sc_flags & SC_OP_INVALID))
750 ath9k_setpower(sc, ATH9K_PM_AWAKE);
752 /* cleanup tx queues */
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 if ((sc->btcoex.no_stomp_timer) &&
758 ah->btcoex_hw.scheme == ATH_BTCOEX_CFG_3WIRE)
759 ath_gen_timer_free(ah, sc->btcoex.no_stomp_timer);
762 void ath_descdma_cleanup(struct ath_softc *sc,
763 struct ath_descdma *dd,
764 struct list_head *head)
766 dma_free_coherent(sc->dev, dd->dd_desc_len, dd->dd_desc,
769 INIT_LIST_HEAD(head);
770 kfree(dd->dd_bufptr);
771 memset(dd, 0, sizeof(*dd));
774 void ath_detach(struct ath_softc *sc)
780 void ath_cleanup(struct ath_softc *sc)
782 struct ath_hw *ah = sc->sc_ah;
783 struct ath_common *common = ath9k_hw_common(ah);
786 free_irq(sc->irq, sc);
787 ath_bus_cleanup(common);
788 kfree(sc->sec_wiphy);
789 ieee80211_free_hw(sc->hw);
794 /************************/
796 /************************/
798 static int __init ath9k_init(void)
802 /* Register rate control algorithm */
803 error = ath_rate_control_register();
806 "ath9k: Unable to register rate control "
812 error = ath9k_debug_create_root();
815 "ath9k: Unable to create debugfs root: %d\n",
817 goto err_rate_unregister;
820 error = ath_pci_init();
823 "ath9k: No PCI devices found, driver not installed.\n");
825 goto err_remove_root;
828 error = ath_ahb_init();
840 ath9k_debug_remove_root();
842 ath_rate_control_unregister();
846 module_init(ath9k_init);
848 static void __exit ath9k_exit(void)
852 ath9k_debug_remove_root();
853 ath_rate_control_unregister();
854 printk(KERN_INFO "%s: Driver unloaded\n", dev_info);
856 module_exit(ath9k_exit);