2 * Copyright (c) 2010 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 MODULE_AUTHOR("Atheros Communications");
20 MODULE_LICENSE("Dual BSD/GPL");
21 MODULE_DESCRIPTION("Atheros driver 802.11n HTC based wireless devices");
23 static unsigned int ath9k_debug = ATH_DBG_DEFAULT;
24 module_param_named(debug, ath9k_debug, uint, 0);
25 MODULE_PARM_DESC(debug, "Debugging mask");
27 int htc_modparam_nohwcrypt;
28 module_param_named(nohwcrypt, htc_modparam_nohwcrypt, int, 0444);
29 MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption");
31 #define CHAN2G(_freq, _idx) { \
32 .center_freq = (_freq), \
37 #define CHAN5G(_freq, _idx) { \
38 .band = IEEE80211_BAND_5GHZ, \
39 .center_freq = (_freq), \
44 #define ATH_HTC_BTCOEX_PRODUCT_ID "wb193"
46 static struct ieee80211_channel ath9k_2ghz_channels[] = {
47 CHAN2G(2412, 0), /* Channel 1 */
48 CHAN2G(2417, 1), /* Channel 2 */
49 CHAN2G(2422, 2), /* Channel 3 */
50 CHAN2G(2427, 3), /* Channel 4 */
51 CHAN2G(2432, 4), /* Channel 5 */
52 CHAN2G(2437, 5), /* Channel 6 */
53 CHAN2G(2442, 6), /* Channel 7 */
54 CHAN2G(2447, 7), /* Channel 8 */
55 CHAN2G(2452, 8), /* Channel 9 */
56 CHAN2G(2457, 9), /* Channel 10 */
57 CHAN2G(2462, 10), /* Channel 11 */
58 CHAN2G(2467, 11), /* Channel 12 */
59 CHAN2G(2472, 12), /* Channel 13 */
60 CHAN2G(2484, 13), /* Channel 14 */
63 static struct ieee80211_channel ath9k_5ghz_channels[] = {
64 /* _We_ call this UNII 1 */
65 CHAN5G(5180, 14), /* Channel 36 */
66 CHAN5G(5200, 15), /* Channel 40 */
67 CHAN5G(5220, 16), /* Channel 44 */
68 CHAN5G(5240, 17), /* Channel 48 */
69 /* _We_ call this UNII 2 */
70 CHAN5G(5260, 18), /* Channel 52 */
71 CHAN5G(5280, 19), /* Channel 56 */
72 CHAN5G(5300, 20), /* Channel 60 */
73 CHAN5G(5320, 21), /* Channel 64 */
74 /* _We_ call this "Middle band" */
75 CHAN5G(5500, 22), /* Channel 100 */
76 CHAN5G(5520, 23), /* Channel 104 */
77 CHAN5G(5540, 24), /* Channel 108 */
78 CHAN5G(5560, 25), /* Channel 112 */
79 CHAN5G(5580, 26), /* Channel 116 */
80 CHAN5G(5600, 27), /* Channel 120 */
81 CHAN5G(5620, 28), /* Channel 124 */
82 CHAN5G(5640, 29), /* Channel 128 */
83 CHAN5G(5660, 30), /* Channel 132 */
84 CHAN5G(5680, 31), /* Channel 136 */
85 CHAN5G(5700, 32), /* Channel 140 */
86 /* _We_ call this UNII 3 */
87 CHAN5G(5745, 33), /* Channel 149 */
88 CHAN5G(5765, 34), /* Channel 153 */
89 CHAN5G(5785, 35), /* Channel 157 */
90 CHAN5G(5805, 36), /* Channel 161 */
91 CHAN5G(5825, 37), /* Channel 165 */
94 /* Atheros hardware rate code addition for short premble */
95 #define SHPCHECK(__hw_rate, __flags) \
96 ((__flags & IEEE80211_RATE_SHORT_PREAMBLE) ? (__hw_rate | 0x04) : 0)
98 #define RATE(_bitrate, _hw_rate, _flags) { \
99 .bitrate = (_bitrate), \
101 .hw_value = (_hw_rate), \
102 .hw_value_short = (SHPCHECK(_hw_rate, _flags)) \
105 static struct ieee80211_rate ath9k_legacy_rates[] = {
107 RATE(20, 0x1a, IEEE80211_RATE_SHORT_PREAMBLE), /* shortp : 0x1e */
108 RATE(55, 0x19, IEEE80211_RATE_SHORT_PREAMBLE), /* shortp: 0x1d */
109 RATE(110, 0x18, IEEE80211_RATE_SHORT_PREAMBLE), /* short: 0x1c */
120 static int ath9k_htc_wait_for_target(struct ath9k_htc_priv *priv)
124 if (atomic_read(&priv->htc->tgt_ready) > 0) {
125 atomic_dec(&priv->htc->tgt_ready);
129 /* Firmware can take up to 50ms to get ready, to be safe use 1 second */
130 time_left = wait_for_completion_timeout(&priv->htc->target_wait, HZ);
132 dev_err(priv->dev, "ath9k_htc: Target is unresponsive\n");
136 atomic_dec(&priv->htc->tgt_ready);
141 static void ath9k_deinit_priv(struct ath9k_htc_priv *priv)
143 ath9k_hw_deinit(priv->ah);
148 static void ath9k_deinit_device(struct ath9k_htc_priv *priv)
150 struct ieee80211_hw *hw = priv->hw;
152 wiphy_rfkill_stop_polling(hw->wiphy);
153 ath9k_deinit_leds(priv);
154 ieee80211_unregister_hw(hw);
155 ath9k_rx_cleanup(priv);
156 ath9k_tx_cleanup(priv);
157 ath9k_deinit_priv(priv);
160 static inline int ath9k_htc_connect_svc(struct ath9k_htc_priv *priv,
164 enum htc_endpoint_id,
166 enum htc_endpoint_id *ep_id)
168 struct htc_service_connreq req;
170 memset(&req, 0, sizeof(struct htc_service_connreq));
172 req.service_id = service_id;
173 req.ep_callbacks.priv = priv;
174 req.ep_callbacks.rx = ath9k_htc_rxep;
175 req.ep_callbacks.tx = tx;
177 return htc_connect_service(priv->htc, &req, ep_id);
180 static int ath9k_init_htc_services(struct ath9k_htc_priv *priv, u16 devid,
186 ret = ath9k_wmi_connect(priv->htc, priv->wmi, &priv->wmi_cmd_ep);
191 ret = ath9k_htc_connect_svc(priv, WMI_BEACON_SVC, ath9k_htc_beaconep,
197 ret = ath9k_htc_connect_svc(priv, WMI_CAB_SVC, ath9k_htc_txep,
204 ret = ath9k_htc_connect_svc(priv, WMI_UAPSD_SVC, ath9k_htc_txep,
210 ret = ath9k_htc_connect_svc(priv, WMI_MGMT_SVC, ath9k_htc_txep,
216 ret = ath9k_htc_connect_svc(priv, WMI_DATA_BE_SVC, ath9k_htc_txep,
222 ret = ath9k_htc_connect_svc(priv, WMI_DATA_BK_SVC, ath9k_htc_txep,
228 ret = ath9k_htc_connect_svc(priv, WMI_DATA_VI_SVC, ath9k_htc_txep,
234 ret = ath9k_htc_connect_svc(priv, WMI_DATA_VO_SVC, ath9k_htc_txep,
240 * Setup required credits before initializing HTC.
241 * This is a bit hacky, but, since queuing is done in
242 * the HIF layer, shouldn't matter much.
245 if (IS_AR7010_DEVICE(drv_info))
246 priv->htc->credits = 45;
248 priv->htc->credits = 33;
250 ret = htc_init(priv->htc);
254 dev_info(priv->dev, "ath9k_htc: HTC initialized with %d credits\n",
260 dev_err(priv->dev, "ath9k_htc: Unable to initialize HTC services\n");
264 static int ath9k_reg_notifier(struct wiphy *wiphy,
265 struct regulatory_request *request)
267 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
268 struct ath9k_htc_priv *priv = hw->priv;
270 return ath_reg_notifier_apply(wiphy, request,
271 ath9k_hw_regulatory(priv->ah));
274 static unsigned int ath9k_regread(void *hw_priv, u32 reg_offset)
276 struct ath_hw *ah = (struct ath_hw *) hw_priv;
277 struct ath_common *common = ath9k_hw_common(ah);
278 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
279 __be32 val, reg = cpu_to_be32(reg_offset);
282 r = ath9k_wmi_cmd(priv->wmi, WMI_REG_READ_CMDID,
283 (u8 *) ®, sizeof(reg),
284 (u8 *) &val, sizeof(val),
287 ath_dbg(common, ATH_DBG_WMI,
288 "REGISTER READ FAILED: (0x%04x, %d)\n",
293 return be32_to_cpu(val);
296 static void ath9k_multi_regread(void *hw_priv, u32 *addr,
299 struct ath_hw *ah = (struct ath_hw *) hw_priv;
300 struct ath_common *common = ath9k_hw_common(ah);
301 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
306 for (i = 0; i < count; i++) {
307 tmpaddr[i] = cpu_to_be32(addr[i]);
310 ret = ath9k_wmi_cmd(priv->wmi, WMI_REG_READ_CMDID,
311 (u8 *)tmpaddr , sizeof(u32) * count,
312 (u8 *)tmpval, sizeof(u32) * count,
315 ath_dbg(common, ATH_DBG_WMI,
316 "Multiple REGISTER READ FAILED (count: %d)\n", count);
319 for (i = 0; i < count; i++) {
320 val[i] = be32_to_cpu(tmpval[i]);
324 static void ath9k_regwrite_single(void *hw_priv, u32 val, u32 reg_offset)
326 struct ath_hw *ah = (struct ath_hw *) hw_priv;
327 struct ath_common *common = ath9k_hw_common(ah);
328 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
329 const __be32 buf[2] = {
330 cpu_to_be32(reg_offset),
335 r = ath9k_wmi_cmd(priv->wmi, WMI_REG_WRITE_CMDID,
336 (u8 *) &buf, sizeof(buf),
337 (u8 *) &val, sizeof(val),
340 ath_dbg(common, ATH_DBG_WMI,
341 "REGISTER WRITE FAILED:(0x%04x, %d)\n",
346 static void ath9k_regwrite_buffer(void *hw_priv, u32 val, u32 reg_offset)
348 struct ath_hw *ah = (struct ath_hw *) hw_priv;
349 struct ath_common *common = ath9k_hw_common(ah);
350 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
354 mutex_lock(&priv->wmi->multi_write_mutex);
356 /* Store the register/value */
357 priv->wmi->multi_write[priv->wmi->multi_write_idx].reg =
358 cpu_to_be32(reg_offset);
359 priv->wmi->multi_write[priv->wmi->multi_write_idx].val =
362 priv->wmi->multi_write_idx++;
364 /* If the buffer is full, send it out. */
365 if (priv->wmi->multi_write_idx == MAX_CMD_NUMBER) {
366 r = ath9k_wmi_cmd(priv->wmi, WMI_REG_WRITE_CMDID,
367 (u8 *) &priv->wmi->multi_write,
368 sizeof(struct register_write) * priv->wmi->multi_write_idx,
369 (u8 *) &rsp_status, sizeof(rsp_status),
372 ath_dbg(common, ATH_DBG_WMI,
373 "REGISTER WRITE FAILED, multi len: %d\n",
374 priv->wmi->multi_write_idx);
376 priv->wmi->multi_write_idx = 0;
379 mutex_unlock(&priv->wmi->multi_write_mutex);
382 static void ath9k_regwrite(void *hw_priv, u32 val, u32 reg_offset)
384 struct ath_hw *ah = (struct ath_hw *) hw_priv;
385 struct ath_common *common = ath9k_hw_common(ah);
386 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
388 if (atomic_read(&priv->wmi->mwrite_cnt))
389 ath9k_regwrite_buffer(hw_priv, val, reg_offset);
391 ath9k_regwrite_single(hw_priv, val, reg_offset);
394 static void ath9k_enable_regwrite_buffer(void *hw_priv)
396 struct ath_hw *ah = (struct ath_hw *) hw_priv;
397 struct ath_common *common = ath9k_hw_common(ah);
398 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
400 atomic_inc(&priv->wmi->mwrite_cnt);
403 static void ath9k_regwrite_flush(void *hw_priv)
405 struct ath_hw *ah = (struct ath_hw *) hw_priv;
406 struct ath_common *common = ath9k_hw_common(ah);
407 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
411 atomic_dec(&priv->wmi->mwrite_cnt);
413 mutex_lock(&priv->wmi->multi_write_mutex);
415 if (priv->wmi->multi_write_idx) {
416 r = ath9k_wmi_cmd(priv->wmi, WMI_REG_WRITE_CMDID,
417 (u8 *) &priv->wmi->multi_write,
418 sizeof(struct register_write) * priv->wmi->multi_write_idx,
419 (u8 *) &rsp_status, sizeof(rsp_status),
422 ath_dbg(common, ATH_DBG_WMI,
423 "REGISTER WRITE FAILED, multi len: %d\n",
424 priv->wmi->multi_write_idx);
426 priv->wmi->multi_write_idx = 0;
429 mutex_unlock(&priv->wmi->multi_write_mutex);
432 static u32 ath9k_reg_rmw(void *hw_priv, u32 reg_offset, u32 set, u32 clr)
436 val = ath9k_regread(hw_priv, reg_offset);
439 ath9k_regwrite(hw_priv, val, reg_offset);
443 static void ath_usb_read_cachesize(struct ath_common *common, int *csz)
445 *csz = L1_CACHE_BYTES >> 2;
448 static bool ath_usb_eeprom_read(struct ath_common *common, u32 off, u16 *data)
450 struct ath_hw *ah = (struct ath_hw *) common->ah;
452 (void)REG_READ(ah, AR5416_EEPROM_OFFSET + (off << AR5416_EEPROM_S));
454 if (!ath9k_hw_wait(ah,
455 AR_EEPROM_STATUS_DATA,
456 AR_EEPROM_STATUS_DATA_BUSY |
457 AR_EEPROM_STATUS_DATA_PROT_ACCESS, 0,
461 *data = MS(REG_READ(ah, AR_EEPROM_STATUS_DATA),
462 AR_EEPROM_STATUS_DATA_VAL);
467 static const struct ath_bus_ops ath9k_usb_bus_ops = {
468 .ath_bus_type = ATH_USB,
469 .read_cachesize = ath_usb_read_cachesize,
470 .eeprom_read = ath_usb_eeprom_read,
473 static void setup_ht_cap(struct ath9k_htc_priv *priv,
474 struct ieee80211_sta_ht_cap *ht_info)
476 struct ath_common *common = ath9k_hw_common(priv->ah);
477 u8 tx_streams, rx_streams;
480 ht_info->ht_supported = true;
481 ht_info->cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
482 IEEE80211_HT_CAP_SM_PS |
483 IEEE80211_HT_CAP_SGI_40 |
484 IEEE80211_HT_CAP_DSSSCCK40;
486 if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_SGI_20)
487 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
489 ht_info->cap |= (1 << IEEE80211_HT_CAP_RX_STBC_SHIFT);
491 ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
492 ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_8;
494 memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
496 /* ath9k_htc supports only 1 or 2 stream devices */
497 tx_streams = ath9k_cmn_count_streams(common->tx_chainmask, 2);
498 rx_streams = ath9k_cmn_count_streams(common->rx_chainmask, 2);
500 ath_dbg(common, ATH_DBG_CONFIG,
501 "TX streams %d, RX streams: %d\n",
502 tx_streams, rx_streams);
504 if (tx_streams != rx_streams) {
505 ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_RX_DIFF;
506 ht_info->mcs.tx_params |= ((tx_streams - 1) <<
507 IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT);
510 for (i = 0; i < rx_streams; i++)
511 ht_info->mcs.rx_mask[i] = 0xff;
513 ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_DEFINED;
516 static int ath9k_init_queues(struct ath9k_htc_priv *priv)
518 struct ath_common *common = ath9k_hw_common(priv->ah);
521 for (i = 0; i < ARRAY_SIZE(priv->hwq_map); i++)
522 priv->hwq_map[i] = -1;
524 priv->beaconq = ath9k_hw_beaconq_setup(priv->ah);
525 if (priv->beaconq == -1) {
526 ath_err(common, "Unable to setup BEACON xmit queue\n");
530 priv->cabq = ath9k_htc_cabq_setup(priv);
531 if (priv->cabq == -1) {
532 ath_err(common, "Unable to setup CAB xmit queue\n");
536 if (!ath9k_htc_txq_setup(priv, WME_AC_BE)) {
537 ath_err(common, "Unable to setup xmit queue for BE traffic\n");
541 if (!ath9k_htc_txq_setup(priv, WME_AC_BK)) {
542 ath_err(common, "Unable to setup xmit queue for BK traffic\n");
545 if (!ath9k_htc_txq_setup(priv, WME_AC_VI)) {
546 ath_err(common, "Unable to setup xmit queue for VI traffic\n");
549 if (!ath9k_htc_txq_setup(priv, WME_AC_VO)) {
550 ath_err(common, "Unable to setup xmit queue for VO traffic\n");
560 static void ath9k_init_crypto(struct ath9k_htc_priv *priv)
562 struct ath_common *common = ath9k_hw_common(priv->ah);
565 /* Get the hardware key cache size. */
566 common->keymax = AR_KEYTABLE_SIZE;
568 if (priv->ah->misc_mode & AR_PCU_MIC_NEW_LOC_ENA)
569 common->crypt_caps |= ATH_CRYPT_CAP_MIC_COMBINED;
572 * Reset the key cache since some parts do not
573 * reset the contents on initial power up.
575 for (i = 0; i < common->keymax; i++)
576 ath_hw_keyreset(common, (u16) i);
579 static void ath9k_init_channels_rates(struct ath9k_htc_priv *priv)
581 if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_2GHZ) {
582 priv->sbands[IEEE80211_BAND_2GHZ].channels =
584 priv->sbands[IEEE80211_BAND_2GHZ].band = IEEE80211_BAND_2GHZ;
585 priv->sbands[IEEE80211_BAND_2GHZ].n_channels =
586 ARRAY_SIZE(ath9k_2ghz_channels);
587 priv->sbands[IEEE80211_BAND_2GHZ].bitrates = ath9k_legacy_rates;
588 priv->sbands[IEEE80211_BAND_2GHZ].n_bitrates =
589 ARRAY_SIZE(ath9k_legacy_rates);
592 if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_5GHZ) {
593 priv->sbands[IEEE80211_BAND_5GHZ].channels = ath9k_5ghz_channels;
594 priv->sbands[IEEE80211_BAND_5GHZ].band = IEEE80211_BAND_5GHZ;
595 priv->sbands[IEEE80211_BAND_5GHZ].n_channels =
596 ARRAY_SIZE(ath9k_5ghz_channels);
597 priv->sbands[IEEE80211_BAND_5GHZ].bitrates =
598 ath9k_legacy_rates + 4;
599 priv->sbands[IEEE80211_BAND_5GHZ].n_bitrates =
600 ARRAY_SIZE(ath9k_legacy_rates) - 4;
604 static void ath9k_init_misc(struct ath9k_htc_priv *priv)
606 struct ath_common *common = ath9k_hw_common(priv->ah);
608 common->tx_chainmask = priv->ah->caps.tx_chainmask;
609 common->rx_chainmask = priv->ah->caps.rx_chainmask;
611 memcpy(common->bssidmask, ath_bcast_mac, ETH_ALEN);
613 priv->ah->opmode = NL80211_IFTYPE_STATION;
616 static void ath9k_init_btcoex(struct ath9k_htc_priv *priv)
620 switch (priv->ah->btcoex_hw.scheme) {
621 case ATH_BTCOEX_CFG_NONE:
623 case ATH_BTCOEX_CFG_3WIRE:
624 priv->ah->btcoex_hw.btactive_gpio = 7;
625 priv->ah->btcoex_hw.btpriority_gpio = 6;
626 priv->ah->btcoex_hw.wlanactive_gpio = 8;
627 priv->btcoex.bt_stomp_type = ATH_BTCOEX_STOMP_LOW;
628 ath9k_hw_btcoex_init_3wire(priv->ah);
629 ath_htc_init_btcoex_work(priv);
630 qnum = priv->hwq_map[WME_AC_BE];
631 ath9k_hw_init_btcoex_hw(priv->ah, qnum);
639 static int ath9k_init_priv(struct ath9k_htc_priv *priv,
640 u16 devid, char *product,
643 struct ath_hw *ah = NULL;
644 struct ath_common *common;
645 int i, ret = 0, csz = 0;
647 priv->op_flags |= OP_INVALID;
649 ah = kzalloc(sizeof(struct ath_hw), GFP_KERNEL);
653 ah->hw_version.devid = devid;
654 ah->hw_version.subsysid = 0; /* FIXME */
655 ah->hw_version.usbdev = drv_info;
656 ah->ah_flags |= AH_USE_EEPROM;
657 ah->reg_ops.read = ath9k_regread;
658 ah->reg_ops.multi_read = ath9k_multi_regread;
659 ah->reg_ops.write = ath9k_regwrite;
660 ah->reg_ops.enable_write_buffer = ath9k_enable_regwrite_buffer;
661 ah->reg_ops.write_flush = ath9k_regwrite_flush;
662 ah->reg_ops.rmw = ath9k_reg_rmw;
665 common = ath9k_hw_common(ah);
666 common->ops = &ah->reg_ops;
667 common->bus_ops = &ath9k_usb_bus_ops;
669 common->hw = priv->hw;
671 common->debug_mask = ath9k_debug;
673 spin_lock_init(&priv->beacon_lock);
674 spin_lock_init(&priv->tx.tx_lock);
675 mutex_init(&priv->mutex);
676 mutex_init(&priv->htc_pm_lock);
677 tasklet_init(&priv->rx_tasklet, ath9k_rx_tasklet,
678 (unsigned long)priv);
679 tasklet_init(&priv->tx_failed_tasklet, ath9k_tx_failed_tasklet,
680 (unsigned long)priv);
681 INIT_DELAYED_WORK(&priv->ani_work, ath9k_htc_ani_work);
682 INIT_WORK(&priv->ps_work, ath9k_ps_work);
683 INIT_WORK(&priv->fatal_work, ath9k_fatal_work);
684 setup_timer(&priv->tx.cleanup_timer, ath9k_htc_tx_cleanup_timer,
685 (unsigned long)priv);
688 * Cache line size is used to size and align various
689 * structures used to communicate with the hardware.
691 ath_read_cachesize(common, &csz);
692 common->cachelsz = csz << 2; /* convert to bytes */
694 ret = ath9k_hw_init(ah);
697 "Unable to initialize hardware; initialization status: %d\n",
702 ret = ath9k_init_queues(priv);
706 for (i = 0; i < ATH9K_HTC_MAX_BCN_VIF; i++)
707 priv->cur_beacon_conf.bslot[i] = NULL;
709 ath9k_init_crypto(priv);
710 ath9k_init_channels_rates(priv);
711 ath9k_init_misc(priv);
713 if (product && strncmp(product, ATH_HTC_BTCOEX_PRODUCT_ID, 5) == 0) {
714 ah->btcoex_hw.scheme = ATH_BTCOEX_CFG_3WIRE;
715 ath9k_init_btcoex(priv);
730 static void ath9k_set_hw_capab(struct ath9k_htc_priv *priv,
731 struct ieee80211_hw *hw)
733 struct ath_common *common = ath9k_hw_common(priv->ah);
735 hw->flags = IEEE80211_HW_SIGNAL_DBM |
736 IEEE80211_HW_AMPDU_AGGREGATION |
737 IEEE80211_HW_SPECTRUM_MGMT |
738 IEEE80211_HW_HAS_RATE_CONTROL |
739 IEEE80211_HW_RX_INCLUDES_FCS |
740 IEEE80211_HW_SUPPORTS_PS |
741 IEEE80211_HW_PS_NULLFUNC_STACK |
742 IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING;
744 hw->wiphy->interface_modes =
745 BIT(NL80211_IFTYPE_STATION) |
746 BIT(NL80211_IFTYPE_ADHOC) |
747 BIT(NL80211_IFTYPE_AP) |
748 BIT(NL80211_IFTYPE_P2P_GO) |
749 BIT(NL80211_IFTYPE_P2P_CLIENT);
751 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
754 hw->channel_change_time = 5000;
755 hw->max_listen_interval = 10;
757 if (AR_SREV_9271(priv->ah))
758 hw->max_tx_aggregation_subframes = MAX_TX_AMPDU_SUBFRAMES_9271;
760 hw->max_tx_aggregation_subframes = MAX_TX_AMPDU_SUBFRAMES_7010;
762 hw->vif_data_size = sizeof(struct ath9k_htc_vif);
763 hw->sta_data_size = sizeof(struct ath9k_htc_sta);
765 /* tx_frame_hdr is larger than tx_mgmt_hdr anyway */
766 hw->extra_tx_headroom = sizeof(struct tx_frame_hdr) +
767 sizeof(struct htc_frame_hdr) + 4;
769 if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_2GHZ)
770 hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
771 &priv->sbands[IEEE80211_BAND_2GHZ];
772 if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_5GHZ)
773 hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
774 &priv->sbands[IEEE80211_BAND_5GHZ];
776 if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_HT) {
777 if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_2GHZ)
779 &priv->sbands[IEEE80211_BAND_2GHZ].ht_cap);
780 if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_5GHZ)
782 &priv->sbands[IEEE80211_BAND_5GHZ].ht_cap);
785 SET_IEEE80211_PERM_ADDR(hw, common->macaddr);
788 static int ath9k_init_firmware_version(struct ath9k_htc_priv *priv)
790 struct ieee80211_hw *hw = priv->hw;
791 struct wmi_fw_version cmd_rsp;
794 memset(&cmd_rsp, 0, sizeof(cmd_rsp));
796 WMI_CMD(WMI_GET_FW_VERSION);
800 priv->fw_version_major = be16_to_cpu(cmd_rsp.major);
801 priv->fw_version_minor = be16_to_cpu(cmd_rsp.minor);
803 snprintf(hw->wiphy->fw_version, ETHTOOL_BUSINFO_LEN, "%d.%d",
804 priv->fw_version_major,
805 priv->fw_version_minor);
807 dev_info(priv->dev, "ath9k_htc: FW Version: %d.%d\n",
808 priv->fw_version_major,
809 priv->fw_version_minor);
812 * Check if the available FW matches the driver's
815 if (priv->fw_version_major != MAJOR_VERSION_REQ ||
816 priv->fw_version_minor != MINOR_VERSION_REQ) {
817 dev_err(priv->dev, "ath9k_htc: Please upgrade to FW version %d.%d\n",
818 MAJOR_VERSION_REQ, MINOR_VERSION_REQ);
825 static int ath9k_init_device(struct ath9k_htc_priv *priv,
826 u16 devid, char *product, u32 drv_info)
828 struct ieee80211_hw *hw = priv->hw;
829 struct ath_common *common;
832 struct ath_regulatory *reg;
835 /* Bring up device */
836 error = ath9k_init_priv(priv, devid, product, drv_info);
841 common = ath9k_hw_common(ah);
842 ath9k_set_hw_capab(priv, hw);
844 error = ath9k_init_firmware_version(priv);
848 /* Initialize regulatory */
849 error = ath_regd_init(&common->regulatory, priv->hw->wiphy,
854 reg = &common->regulatory;
857 error = ath9k_tx_init(priv);
862 error = ath9k_rx_init(priv);
866 /* Register with mac80211 */
867 error = ieee80211_register_hw(hw);
871 /* Handle world regulatory */
872 if (!ath_is_world_regd(reg)) {
873 error = regulatory_hint(hw->wiphy, reg->alpha2);
878 error = ath9k_htc_init_debug(priv->ah);
880 ath_err(common, "Unable to create debugfs files\n");
884 ath_dbg(common, ATH_DBG_CONFIG,
885 "WMI:%d, BCN:%d, CAB:%d, UAPSD:%d, MGMT:%d, "
886 "BE:%d, BK:%d, VI:%d, VO:%d\n",
897 ath9k_hw_name(priv->ah, hw_name, sizeof(hw_name));
898 wiphy_info(hw->wiphy, "%s\n", hw_name);
900 ath9k_init_leds(priv);
901 ath9k_start_rfkill_poll(priv);
906 ieee80211_unregister_hw(hw);
908 ath9k_rx_cleanup(priv);
910 ath9k_tx_cleanup(priv);
916 ath9k_deinit_priv(priv);
921 int ath9k_htc_probe_device(struct htc_target *htc_handle, struct device *dev,
922 u16 devid, char *product, u32 drv_info)
924 struct ieee80211_hw *hw;
925 struct ath9k_htc_priv *priv;
928 hw = ieee80211_alloc_hw(sizeof(struct ath9k_htc_priv), &ath9k_htc_ops);
934 priv->htc = htc_handle;
936 htc_handle->drv_priv = priv;
937 SET_IEEE80211_DEV(hw, priv->dev);
939 ret = ath9k_htc_wait_for_target(priv);
943 priv->wmi = ath9k_init_wmi(priv);
949 ret = ath9k_init_htc_services(priv, devid, drv_info);
953 ret = ath9k_init_device(priv, devid, product, drv_info);
960 ath9k_deinit_wmi(priv);
962 ieee80211_free_hw(hw);
966 void ath9k_htc_disconnect_device(struct htc_target *htc_handle, bool hotunplug)
968 if (htc_handle->drv_priv) {
970 /* Check if the device has been yanked out. */
972 htc_handle->drv_priv->ah->ah_flags |= AH_UNPLUGGED;
974 ath9k_deinit_device(htc_handle->drv_priv);
975 ath9k_deinit_wmi(htc_handle->drv_priv);
976 ieee80211_free_hw(htc_handle->drv_priv->hw);
982 void ath9k_htc_suspend(struct htc_target *htc_handle)
984 ath9k_htc_setpower(htc_handle->drv_priv, ATH9K_PM_FULL_SLEEP);
987 int ath9k_htc_resume(struct htc_target *htc_handle)
989 struct ath9k_htc_priv *priv = htc_handle->drv_priv;
992 ret = ath9k_htc_wait_for_target(priv);
996 ret = ath9k_init_htc_services(priv, priv->ah->hw_version.devid,
997 priv->ah->hw_version.usbdev);
1002 static int __init ath9k_htc_init(void)
1004 if (ath9k_hif_usb_init() < 0) {
1006 "ath9k_htc: No USB devices found,"
1007 " driver not installed.\n");
1013 module_init(ath9k_htc_init);
1015 static void __exit ath9k_htc_exit(void)
1017 ath9k_hif_usb_exit();
1018 printk(KERN_INFO "ath9k_htc: Driver unloaded\n");
1020 module_exit(ath9k_htc_exit);