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1/*
2 * Copyright (c) 2010-2011 Atheros Communications Inc.
3 *
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.
7 *
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.
15 */
16
17#include "htc.h"
18
19MODULE_AUTHOR("Atheros Communications");
20MODULE_LICENSE("Dual BSD/GPL");
21MODULE_DESCRIPTION("Atheros driver 802.11n HTC based wireless devices");
22
23static unsigned int ath9k_debug = ATH_DBG_DEFAULT;
24module_param_named(debug, ath9k_debug, uint, 0);
25MODULE_PARM_DESC(debug, "Debugging mask");
26
27int htc_modparam_nohwcrypt;
28module_param_named(nohwcrypt, htc_modparam_nohwcrypt, int, 0444);
29MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption");
30
31#define CHAN2G(_freq, _idx) { \
32 .center_freq = (_freq), \
33 .hw_value = (_idx), \
34 .max_power = 20, \
35}
36
37#define CHAN5G(_freq, _idx) { \
38 .band = IEEE80211_BAND_5GHZ, \
39 .center_freq = (_freq), \
40 .hw_value = (_idx), \
41 .max_power = 20, \
42}
43
44#define ATH_HTC_BTCOEX_PRODUCT_ID "wb193"
45
46static 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 */
61};
62
63static 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 */
92};
93
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)
97
98#define RATE(_bitrate, _hw_rate, _flags) { \
99 .bitrate = (_bitrate), \
100 .flags = (_flags), \
101 .hw_value = (_hw_rate), \
102 .hw_value_short = (SHPCHECK(_hw_rate, _flags)) \
103}
104
105static struct ieee80211_rate ath9k_legacy_rates[] = {
106 RATE(10, 0x1b, 0),
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 */
110 RATE(60, 0x0b, 0),
111 RATE(90, 0x0f, 0),
112 RATE(120, 0x0a, 0),
113 RATE(180, 0x0e, 0),
114 RATE(240, 0x09, 0),
115 RATE(360, 0x0d, 0),
116 RATE(480, 0x08, 0),
117 RATE(540, 0x0c, 0),
118};
119
120#ifdef CONFIG_MAC80211_LEDS
121static const struct ieee80211_tpt_blink ath9k_htc_tpt_blink[] = {
122 { .throughput = 0 * 1024, .blink_time = 334 },
123 { .throughput = 1 * 1024, .blink_time = 260 },
124 { .throughput = 5 * 1024, .blink_time = 220 },
125 { .throughput = 10 * 1024, .blink_time = 190 },
126 { .throughput = 20 * 1024, .blink_time = 170 },
127 { .throughput = 50 * 1024, .blink_time = 150 },
128 { .throughput = 70 * 1024, .blink_time = 130 },
129 { .throughput = 100 * 1024, .blink_time = 110 },
130 { .throughput = 200 * 1024, .blink_time = 80 },
131 { .throughput = 300 * 1024, .blink_time = 50 },
132};
133#endif
134
135static int ath9k_htc_wait_for_target(struct ath9k_htc_priv *priv)
136{
137 int time_left;
138
139 if (atomic_read(&priv->htc->tgt_ready) > 0) {
140 atomic_dec(&priv->htc->tgt_ready);
141 return 0;
142 }
143
144 /* Firmware can take up to 50ms to get ready, to be safe use 1 second */
145 time_left = wait_for_completion_timeout(&priv->htc->target_wait, HZ);
146 if (!time_left) {
147 dev_err(priv->dev, "ath9k_htc: Target is unresponsive\n");
148 return -ETIMEDOUT;
149 }
150
151 atomic_dec(&priv->htc->tgt_ready);
152
153 return 0;
154}
155
156static void ath9k_deinit_priv(struct ath9k_htc_priv *priv)
157{
158 ath9k_hw_deinit(priv->ah);
159 kfree(priv->ah);
160 priv->ah = NULL;
161}
162
163static void ath9k_deinit_device(struct ath9k_htc_priv *priv)
164{
165 struct ieee80211_hw *hw = priv->hw;
166
167 wiphy_rfkill_stop_polling(hw->wiphy);
168 ath9k_deinit_leds(priv);
169 ieee80211_unregister_hw(hw);
170 ath9k_rx_cleanup(priv);
171 ath9k_tx_cleanup(priv);
172 ath9k_deinit_priv(priv);
173}
174
175static inline int ath9k_htc_connect_svc(struct ath9k_htc_priv *priv,
176 u16 service_id,
177 void (*tx) (void *,
178 struct sk_buff *,
179 enum htc_endpoint_id,
180 bool txok),
181 enum htc_endpoint_id *ep_id)
182{
183 struct htc_service_connreq req;
184
185 memset(&req, 0, sizeof(struct htc_service_connreq));
186
187 req.service_id = service_id;
188 req.ep_callbacks.priv = priv;
189 req.ep_callbacks.rx = ath9k_htc_rxep;
190 req.ep_callbacks.tx = tx;
191
192 return htc_connect_service(priv->htc, &req, ep_id);
193}
194
195static int ath9k_init_htc_services(struct ath9k_htc_priv *priv, u16 devid,
196 u32 drv_info)
197{
198 int ret;
199
200 /* WMI CMD*/
201 ret = ath9k_wmi_connect(priv->htc, priv->wmi, &priv->wmi_cmd_ep);
202 if (ret)
203 goto err;
204
205 /* Beacon */
206 ret = ath9k_htc_connect_svc(priv, WMI_BEACON_SVC, ath9k_htc_beaconep,
207 &priv->beacon_ep);
208 if (ret)
209 goto err;
210
211 /* CAB */
212 ret = ath9k_htc_connect_svc(priv, WMI_CAB_SVC, ath9k_htc_txep,
213 &priv->cab_ep);
214 if (ret)
215 goto err;
216
217
218 /* UAPSD */
219 ret = ath9k_htc_connect_svc(priv, WMI_UAPSD_SVC, ath9k_htc_txep,
220 &priv->uapsd_ep);
221 if (ret)
222 goto err;
223
224 /* MGMT */
225 ret = ath9k_htc_connect_svc(priv, WMI_MGMT_SVC, ath9k_htc_txep,
226 &priv->mgmt_ep);
227 if (ret)
228 goto err;
229
230 /* DATA BE */
231 ret = ath9k_htc_connect_svc(priv, WMI_DATA_BE_SVC, ath9k_htc_txep,
232 &priv->data_be_ep);
233 if (ret)
234 goto err;
235
236 /* DATA BK */
237 ret = ath9k_htc_connect_svc(priv, WMI_DATA_BK_SVC, ath9k_htc_txep,
238 &priv->data_bk_ep);
239 if (ret)
240 goto err;
241
242 /* DATA VI */
243 ret = ath9k_htc_connect_svc(priv, WMI_DATA_VI_SVC, ath9k_htc_txep,
244 &priv->data_vi_ep);
245 if (ret)
246 goto err;
247
248 /* DATA VO */
249 ret = ath9k_htc_connect_svc(priv, WMI_DATA_VO_SVC, ath9k_htc_txep,
250 &priv->data_vo_ep);
251 if (ret)
252 goto err;
253
254 /*
255 * Setup required credits before initializing HTC.
256 * This is a bit hacky, but, since queuing is done in
257 * the HIF layer, shouldn't matter much.
258 */
259
260 if (IS_AR7010_DEVICE(drv_info))
261 priv->htc->credits = 45;
262 else
263 priv->htc->credits = 33;
264
265 ret = htc_init(priv->htc);
266 if (ret)
267 goto err;
268
269 dev_info(priv->dev, "ath9k_htc: HTC initialized with %d credits\n",
270 priv->htc->credits);
271
272 return 0;
273
274err:
275 dev_err(priv->dev, "ath9k_htc: Unable to initialize HTC services\n");
276 return ret;
277}
278
279static int ath9k_reg_notifier(struct wiphy *wiphy,
280 struct regulatory_request *request)
281{
282 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
283 struct ath9k_htc_priv *priv = hw->priv;
284
285 return ath_reg_notifier_apply(wiphy, request,
286 ath9k_hw_regulatory(priv->ah));
287}
288
289static unsigned int ath9k_regread(void *hw_priv, u32 reg_offset)
290{
291 struct ath_hw *ah = (struct ath_hw *) hw_priv;
292 struct ath_common *common = ath9k_hw_common(ah);
293 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
294 __be32 val, reg = cpu_to_be32(reg_offset);
295 int r;
296
297 r = ath9k_wmi_cmd(priv->wmi, WMI_REG_READ_CMDID,
298 (u8 *) ®, sizeof(reg),
299 (u8 *) &val, sizeof(val),
300 100);
301 if (unlikely(r)) {
302 ath_dbg(common, ATH_DBG_WMI,
303 "REGISTER READ FAILED: (0x%04x, %d)\n",
304 reg_offset, r);
305 return -EIO;
306 }
307
308 return be32_to_cpu(val);
309}
310
311static void ath9k_multi_regread(void *hw_priv, u32 *addr,
312 u32 *val, u16 count)
313{
314 struct ath_hw *ah = (struct ath_hw *) hw_priv;
315 struct ath_common *common = ath9k_hw_common(ah);
316 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
317 __be32 tmpaddr[8];
318 __be32 tmpval[8];
319 int i, ret;
320
321 for (i = 0; i < count; i++) {
322 tmpaddr[i] = cpu_to_be32(addr[i]);
323 }
324
325 ret = ath9k_wmi_cmd(priv->wmi, WMI_REG_READ_CMDID,
326 (u8 *)tmpaddr , sizeof(u32) * count,
327 (u8 *)tmpval, sizeof(u32) * count,
328 100);
329 if (unlikely(ret)) {
330 ath_dbg(common, ATH_DBG_WMI,
331 "Multiple REGISTER READ FAILED (count: %d)\n", count);
332 }
333
334 for (i = 0; i < count; i++) {
335 val[i] = be32_to_cpu(tmpval[i]);
336 }
337}
338
339static void ath9k_regwrite_single(void *hw_priv, u32 val, u32 reg_offset)
340{
341 struct ath_hw *ah = (struct ath_hw *) hw_priv;
342 struct ath_common *common = ath9k_hw_common(ah);
343 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
344 const __be32 buf[2] = {
345 cpu_to_be32(reg_offset),
346 cpu_to_be32(val),
347 };
348 int r;
349
350 r = ath9k_wmi_cmd(priv->wmi, WMI_REG_WRITE_CMDID,
351 (u8 *) &buf, sizeof(buf),
352 (u8 *) &val, sizeof(val),
353 100);
354 if (unlikely(r)) {
355 ath_dbg(common, ATH_DBG_WMI,
356 "REGISTER WRITE FAILED:(0x%04x, %d)\n",
357 reg_offset, r);
358 }
359}
360
361static void ath9k_regwrite_buffer(void *hw_priv, u32 val, u32 reg_offset)
362{
363 struct ath_hw *ah = (struct ath_hw *) hw_priv;
364 struct ath_common *common = ath9k_hw_common(ah);
365 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
366 u32 rsp_status;
367 int r;
368
369 mutex_lock(&priv->wmi->multi_write_mutex);
370
371 /* Store the register/value */
372 priv->wmi->multi_write[priv->wmi->multi_write_idx].reg =
373 cpu_to_be32(reg_offset);
374 priv->wmi->multi_write[priv->wmi->multi_write_idx].val =
375 cpu_to_be32(val);
376
377 priv->wmi->multi_write_idx++;
378
379 /* If the buffer is full, send it out. */
380 if (priv->wmi->multi_write_idx == MAX_CMD_NUMBER) {
381 r = ath9k_wmi_cmd(priv->wmi, WMI_REG_WRITE_CMDID,
382 (u8 *) &priv->wmi->multi_write,
383 sizeof(struct register_write) * priv->wmi->multi_write_idx,
384 (u8 *) &rsp_status, sizeof(rsp_status),
385 100);
386 if (unlikely(r)) {
387 ath_dbg(common, ATH_DBG_WMI,
388 "REGISTER WRITE FAILED, multi len: %d\n",
389 priv->wmi->multi_write_idx);
390 }
391 priv->wmi->multi_write_idx = 0;
392 }
393
394 mutex_unlock(&priv->wmi->multi_write_mutex);
395}
396
397static void ath9k_regwrite(void *hw_priv, u32 val, u32 reg_offset)
398{
399 struct ath_hw *ah = (struct ath_hw *) hw_priv;
400 struct ath_common *common = ath9k_hw_common(ah);
401 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
402
403 if (atomic_read(&priv->wmi->mwrite_cnt))
404 ath9k_regwrite_buffer(hw_priv, val, reg_offset);
405 else
406 ath9k_regwrite_single(hw_priv, val, reg_offset);
407}
408
409static void ath9k_enable_regwrite_buffer(void *hw_priv)
410{
411 struct ath_hw *ah = (struct ath_hw *) hw_priv;
412 struct ath_common *common = ath9k_hw_common(ah);
413 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
414
415 atomic_inc(&priv->wmi->mwrite_cnt);
416}
417
418static void ath9k_regwrite_flush(void *hw_priv)
419{
420 struct ath_hw *ah = (struct ath_hw *) hw_priv;
421 struct ath_common *common = ath9k_hw_common(ah);
422 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
423 u32 rsp_status;
424 int r;
425
426 atomic_dec(&priv->wmi->mwrite_cnt);
427
428 mutex_lock(&priv->wmi->multi_write_mutex);
429
430 if (priv->wmi->multi_write_idx) {
431 r = ath9k_wmi_cmd(priv->wmi, WMI_REG_WRITE_CMDID,
432 (u8 *) &priv->wmi->multi_write,
433 sizeof(struct register_write) * priv->wmi->multi_write_idx,
434 (u8 *) &rsp_status, sizeof(rsp_status),
435 100);
436 if (unlikely(r)) {
437 ath_dbg(common, ATH_DBG_WMI,
438 "REGISTER WRITE FAILED, multi len: %d\n",
439 priv->wmi->multi_write_idx);
440 }
441 priv->wmi->multi_write_idx = 0;
442 }
443
444 mutex_unlock(&priv->wmi->multi_write_mutex);
445}
446
447static u32 ath9k_reg_rmw(void *hw_priv, u32 reg_offset, u32 set, u32 clr)
448{
449 u32 val;
450
451 val = ath9k_regread(hw_priv, reg_offset);
452 val &= ~clr;
453 val |= set;
454 ath9k_regwrite(hw_priv, val, reg_offset);
455 return val;
456}
457
458static void ath_usb_read_cachesize(struct ath_common *common, int *csz)
459{
460 *csz = L1_CACHE_BYTES >> 2;
461}
462
463static bool ath_usb_eeprom_read(struct ath_common *common, u32 off, u16 *data)
464{
465 struct ath_hw *ah = (struct ath_hw *) common->ah;
466
467 (void)REG_READ(ah, AR5416_EEPROM_OFFSET + (off << AR5416_EEPROM_S));
468
469 if (!ath9k_hw_wait(ah,
470 AR_EEPROM_STATUS_DATA,
471 AR_EEPROM_STATUS_DATA_BUSY |
472 AR_EEPROM_STATUS_DATA_PROT_ACCESS, 0,
473 AH_WAIT_TIMEOUT))
474 return false;
475
476 *data = MS(REG_READ(ah, AR_EEPROM_STATUS_DATA),
477 AR_EEPROM_STATUS_DATA_VAL);
478
479 return true;
480}
481
482static const struct ath_bus_ops ath9k_usb_bus_ops = {
483 .ath_bus_type = ATH_USB,
484 .read_cachesize = ath_usb_read_cachesize,
485 .eeprom_read = ath_usb_eeprom_read,
486};
487
488static void setup_ht_cap(struct ath9k_htc_priv *priv,
489 struct ieee80211_sta_ht_cap *ht_info)
490{
491 struct ath_common *common = ath9k_hw_common(priv->ah);
492 u8 tx_streams, rx_streams;
493 int i;
494
495 ht_info->ht_supported = true;
496 ht_info->cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
497 IEEE80211_HT_CAP_SM_PS |
498 IEEE80211_HT_CAP_SGI_40 |
499 IEEE80211_HT_CAP_DSSSCCK40;
500
501 if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_SGI_20)
502 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
503
504 ht_info->cap |= (1 << IEEE80211_HT_CAP_RX_STBC_SHIFT);
505
506 ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
507 ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_8;
508
509 memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
510
511 /* ath9k_htc supports only 1 or 2 stream devices */
512 tx_streams = ath9k_cmn_count_streams(common->tx_chainmask, 2);
513 rx_streams = ath9k_cmn_count_streams(common->rx_chainmask, 2);
514
515 ath_dbg(common, ATH_DBG_CONFIG,
516 "TX streams %d, RX streams: %d\n",
517 tx_streams, rx_streams);
518
519 if (tx_streams != rx_streams) {
520 ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_RX_DIFF;
521 ht_info->mcs.tx_params |= ((tx_streams - 1) <<
522 IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT);
523 }
524
525 for (i = 0; i < rx_streams; i++)
526 ht_info->mcs.rx_mask[i] = 0xff;
527
528 ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_DEFINED;
529}
530
531static int ath9k_init_queues(struct ath9k_htc_priv *priv)
532{
533 struct ath_common *common = ath9k_hw_common(priv->ah);
534 int i;
535
536 for (i = 0; i < ARRAY_SIZE(priv->hwq_map); i++)
537 priv->hwq_map[i] = -1;
538
539 priv->beaconq = ath9k_hw_beaconq_setup(priv->ah);
540 if (priv->beaconq == -1) {
541 ath_err(common, "Unable to setup BEACON xmit queue\n");
542 goto err;
543 }
544
545 priv->cabq = ath9k_htc_cabq_setup(priv);
546 if (priv->cabq == -1) {
547 ath_err(common, "Unable to setup CAB xmit queue\n");
548 goto err;
549 }
550
551 if (!ath9k_htc_txq_setup(priv, WME_AC_BE)) {
552 ath_err(common, "Unable to setup xmit queue for BE traffic\n");
553 goto err;
554 }
555
556 if (!ath9k_htc_txq_setup(priv, WME_AC_BK)) {
557 ath_err(common, "Unable to setup xmit queue for BK traffic\n");
558 goto err;
559 }
560 if (!ath9k_htc_txq_setup(priv, WME_AC_VI)) {
561 ath_err(common, "Unable to setup xmit queue for VI traffic\n");
562 goto err;
563 }
564 if (!ath9k_htc_txq_setup(priv, WME_AC_VO)) {
565 ath_err(common, "Unable to setup xmit queue for VO traffic\n");
566 goto err;
567 }
568
569 return 0;
570
571err:
572 return -EINVAL;
573}
574
575static void ath9k_init_crypto(struct ath9k_htc_priv *priv)
576{
577 struct ath_common *common = ath9k_hw_common(priv->ah);
578 int i = 0;
579
580 /* Get the hardware key cache size. */
581 common->keymax = AR_KEYTABLE_SIZE;
582
583 if (priv->ah->misc_mode & AR_PCU_MIC_NEW_LOC_ENA)
584 common->crypt_caps |= ATH_CRYPT_CAP_MIC_COMBINED;
585
586 /*
587 * Reset the key cache since some parts do not
588 * reset the contents on initial power up.
589 */
590 for (i = 0; i < common->keymax; i++)
591 ath_hw_keyreset(common, (u16) i);
592}
593
594static void ath9k_init_channels_rates(struct ath9k_htc_priv *priv)
595{
596 if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_2GHZ) {
597 priv->sbands[IEEE80211_BAND_2GHZ].channels =
598 ath9k_2ghz_channels;
599 priv->sbands[IEEE80211_BAND_2GHZ].band = IEEE80211_BAND_2GHZ;
600 priv->sbands[IEEE80211_BAND_2GHZ].n_channels =
601 ARRAY_SIZE(ath9k_2ghz_channels);
602 priv->sbands[IEEE80211_BAND_2GHZ].bitrates = ath9k_legacy_rates;
603 priv->sbands[IEEE80211_BAND_2GHZ].n_bitrates =
604 ARRAY_SIZE(ath9k_legacy_rates);
605 }
606
607 if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_5GHZ) {
608 priv->sbands[IEEE80211_BAND_5GHZ].channels = ath9k_5ghz_channels;
609 priv->sbands[IEEE80211_BAND_5GHZ].band = IEEE80211_BAND_5GHZ;
610 priv->sbands[IEEE80211_BAND_5GHZ].n_channels =
611 ARRAY_SIZE(ath9k_5ghz_channels);
612 priv->sbands[IEEE80211_BAND_5GHZ].bitrates =
613 ath9k_legacy_rates + 4;
614 priv->sbands[IEEE80211_BAND_5GHZ].n_bitrates =
615 ARRAY_SIZE(ath9k_legacy_rates) - 4;
616 }
617}
618
619static void ath9k_init_misc(struct ath9k_htc_priv *priv)
620{
621 struct ath_common *common = ath9k_hw_common(priv->ah);
622
623 common->tx_chainmask = priv->ah->caps.tx_chainmask;
624 common->rx_chainmask = priv->ah->caps.rx_chainmask;
625
626 memcpy(common->bssidmask, ath_bcast_mac, ETH_ALEN);
627
628 priv->ah->opmode = NL80211_IFTYPE_STATION;
629}
630
631static void ath9k_init_btcoex(struct ath9k_htc_priv *priv)
632{
633 int qnum;
634
635 switch (priv->ah->btcoex_hw.scheme) {
636 case ATH_BTCOEX_CFG_NONE:
637 break;
638 case ATH_BTCOEX_CFG_3WIRE:
639 priv->ah->btcoex_hw.btactive_gpio = 7;
640 priv->ah->btcoex_hw.btpriority_gpio = 6;
641 priv->ah->btcoex_hw.wlanactive_gpio = 8;
642 priv->btcoex.bt_stomp_type = ATH_BTCOEX_STOMP_LOW;
643 ath9k_hw_btcoex_init_3wire(priv->ah);
644 ath_htc_init_btcoex_work(priv);
645 qnum = priv->hwq_map[WME_AC_BE];
646 ath9k_hw_init_btcoex_hw(priv->ah, qnum);
647 break;
648 default:
649 WARN_ON(1);
650 break;
651 }
652}
653
654static int ath9k_init_priv(struct ath9k_htc_priv *priv,
655 u16 devid, char *product,
656 u32 drv_info)
657{
658 struct ath_hw *ah = NULL;
659 struct ath_common *common;
660 int i, ret = 0, csz = 0;
661
662 priv->op_flags |= OP_INVALID;
663
664 ah = kzalloc(sizeof(struct ath_hw), GFP_KERNEL);
665 if (!ah)
666 return -ENOMEM;
667
668 ah->hw_version.devid = devid;
669 ah->hw_version.subsysid = 0; /* FIXME */
670 ah->hw_version.usbdev = drv_info;
671 ah->ah_flags |= AH_USE_EEPROM;
672 ah->reg_ops.read = ath9k_regread;
673 ah->reg_ops.multi_read = ath9k_multi_regread;
674 ah->reg_ops.write = ath9k_regwrite;
675 ah->reg_ops.enable_write_buffer = ath9k_enable_regwrite_buffer;
676 ah->reg_ops.write_flush = ath9k_regwrite_flush;
677 ah->reg_ops.rmw = ath9k_reg_rmw;
678 priv->ah = ah;
679
680 common = ath9k_hw_common(ah);
681 common->ops = &ah->reg_ops;
682 common->bus_ops = &ath9k_usb_bus_ops;
683 common->ah = ah;
684 common->hw = priv->hw;
685 common->priv = priv;
686 common->debug_mask = ath9k_debug;
687
688 spin_lock_init(&priv->beacon_lock);
689 spin_lock_init(&priv->tx.tx_lock);
690 mutex_init(&priv->mutex);
691 mutex_init(&priv->htc_pm_lock);
692 tasklet_init(&priv->rx_tasklet, ath9k_rx_tasklet,
693 (unsigned long)priv);
694 tasklet_init(&priv->tx_failed_tasklet, ath9k_tx_failed_tasklet,
695 (unsigned long)priv);
696 INIT_DELAYED_WORK(&priv->ani_work, ath9k_htc_ani_work);
697 INIT_WORK(&priv->ps_work, ath9k_ps_work);
698 INIT_WORK(&priv->fatal_work, ath9k_fatal_work);
699 setup_timer(&priv->tx.cleanup_timer, ath9k_htc_tx_cleanup_timer,
700 (unsigned long)priv);
701
702 /*
703 * Cache line size is used to size and align various
704 * structures used to communicate with the hardware.
705 */
706 ath_read_cachesize(common, &csz);
707 common->cachelsz = csz << 2; /* convert to bytes */
708
709 ret = ath9k_hw_init(ah);
710 if (ret) {
711 ath_err(common,
712 "Unable to initialize hardware; initialization status: %d\n",
713 ret);
714 goto err_hw;
715 }
716
717 ret = ath9k_init_queues(priv);
718 if (ret)
719 goto err_queues;
720
721 for (i = 0; i < ATH9K_HTC_MAX_BCN_VIF; i++)
722 priv->cur_beacon_conf.bslot[i] = NULL;
723
724 ath9k_init_crypto(priv);
725 ath9k_init_channels_rates(priv);
726 ath9k_init_misc(priv);
727
728 if (product && strncmp(product, ATH_HTC_BTCOEX_PRODUCT_ID, 5) == 0) {
729 ah->btcoex_hw.scheme = ATH_BTCOEX_CFG_3WIRE;
730 ath9k_init_btcoex(priv);
731 }
732
733 return 0;
734
735err_queues:
736 ath9k_hw_deinit(ah);
737err_hw:
738
739 kfree(ah);
740 priv->ah = NULL;
741
742 return ret;
743}
744
745static void ath9k_set_hw_capab(struct ath9k_htc_priv *priv,
746 struct ieee80211_hw *hw)
747{
748 struct ath_common *common = ath9k_hw_common(priv->ah);
749
750 hw->flags = IEEE80211_HW_SIGNAL_DBM |
751 IEEE80211_HW_AMPDU_AGGREGATION |
752 IEEE80211_HW_SPECTRUM_MGMT |
753 IEEE80211_HW_HAS_RATE_CONTROL |
754 IEEE80211_HW_RX_INCLUDES_FCS |
755 IEEE80211_HW_SUPPORTS_PS |
756 IEEE80211_HW_PS_NULLFUNC_STACK |
757 IEEE80211_HW_REPORTS_TX_ACK_STATUS |
758 IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING;
759
760 hw->wiphy->interface_modes =
761 BIT(NL80211_IFTYPE_STATION) |
762 BIT(NL80211_IFTYPE_ADHOC) |
763 BIT(NL80211_IFTYPE_AP) |
764 BIT(NL80211_IFTYPE_P2P_GO) |
765 BIT(NL80211_IFTYPE_P2P_CLIENT);
766
767 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
768
769 hw->queues = 4;
770 hw->channel_change_time = 5000;
771 hw->max_listen_interval = 10;
772
773 hw->vif_data_size = sizeof(struct ath9k_htc_vif);
774 hw->sta_data_size = sizeof(struct ath9k_htc_sta);
775
776 /* tx_frame_hdr is larger than tx_mgmt_hdr anyway */
777 hw->extra_tx_headroom = sizeof(struct tx_frame_hdr) +
778 sizeof(struct htc_frame_hdr) + 4;
779
780 if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_2GHZ)
781 hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
782 &priv->sbands[IEEE80211_BAND_2GHZ];
783 if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_5GHZ)
784 hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
785 &priv->sbands[IEEE80211_BAND_5GHZ];
786
787 if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_HT) {
788 if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_2GHZ)
789 setup_ht_cap(priv,
790 &priv->sbands[IEEE80211_BAND_2GHZ].ht_cap);
791 if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_5GHZ)
792 setup_ht_cap(priv,
793 &priv->sbands[IEEE80211_BAND_5GHZ].ht_cap);
794 }
795
796 SET_IEEE80211_PERM_ADDR(hw, common->macaddr);
797}
798
799static int ath9k_init_firmware_version(struct ath9k_htc_priv *priv)
800{
801 struct ieee80211_hw *hw = priv->hw;
802 struct wmi_fw_version cmd_rsp;
803 int ret;
804
805 memset(&cmd_rsp, 0, sizeof(cmd_rsp));
806
807 WMI_CMD(WMI_GET_FW_VERSION);
808 if (ret)
809 return -EINVAL;
810
811 priv->fw_version_major = be16_to_cpu(cmd_rsp.major);
812 priv->fw_version_minor = be16_to_cpu(cmd_rsp.minor);
813
814 snprintf(hw->wiphy->fw_version, ETHTOOL_BUSINFO_LEN, "%d.%d",
815 priv->fw_version_major,
816 priv->fw_version_minor);
817
818 dev_info(priv->dev, "ath9k_htc: FW Version: %d.%d\n",
819 priv->fw_version_major,
820 priv->fw_version_minor);
821
822 /*
823 * Check if the available FW matches the driver's
824 * required version.
825 */
826 if (priv->fw_version_major != MAJOR_VERSION_REQ ||
827 priv->fw_version_minor != MINOR_VERSION_REQ) {
828 dev_err(priv->dev, "ath9k_htc: Please upgrade to FW version %d.%d\n",
829 MAJOR_VERSION_REQ, MINOR_VERSION_REQ);
830 return -EINVAL;
831 }
832
833 return 0;
834}
835
836static int ath9k_init_device(struct ath9k_htc_priv *priv,
837 u16 devid, char *product, u32 drv_info)
838{
839 struct ieee80211_hw *hw = priv->hw;
840 struct ath_common *common;
841 struct ath_hw *ah;
842 int error = 0;
843 struct ath_regulatory *reg;
844 char hw_name[64];
845
846 /* Bring up device */
847 error = ath9k_init_priv(priv, devid, product, drv_info);
848 if (error != 0)
849 goto err_init;
850
851 ah = priv->ah;
852 common = ath9k_hw_common(ah);
853 ath9k_set_hw_capab(priv, hw);
854
855 error = ath9k_init_firmware_version(priv);
856 if (error != 0)
857 goto err_fw;
858
859 /* Initialize regulatory */
860 error = ath_regd_init(&common->regulatory, priv->hw->wiphy,
861 ath9k_reg_notifier);
862 if (error)
863 goto err_regd;
864
865 reg = &common->regulatory;
866
867 /* Setup TX */
868 error = ath9k_tx_init(priv);
869 if (error != 0)
870 goto err_tx;
871
872 /* Setup RX */
873 error = ath9k_rx_init(priv);
874 if (error != 0)
875 goto err_rx;
876
877#ifdef CONFIG_MAC80211_LEDS
878 /* must be initialized before ieee80211_register_hw */
879 priv->led_cdev.default_trigger = ieee80211_create_tpt_led_trigger(priv->hw,
880 IEEE80211_TPT_LEDTRIG_FL_RADIO, ath9k_htc_tpt_blink,
881 ARRAY_SIZE(ath9k_htc_tpt_blink));
882#endif
883
884 /* Register with mac80211 */
885 error = ieee80211_register_hw(hw);
886 if (error)
887 goto err_register;
888
889 /* Handle world regulatory */
890 if (!ath_is_world_regd(reg)) {
891 error = regulatory_hint(hw->wiphy, reg->alpha2);
892 if (error)
893 goto err_world;
894 }
895
896 error = ath9k_htc_init_debug(priv->ah);
897 if (error) {
898 ath_err(common, "Unable to create debugfs files\n");
899 goto err_world;
900 }
901
902 ath_dbg(common, ATH_DBG_CONFIG,
903 "WMI:%d, BCN:%d, CAB:%d, UAPSD:%d, MGMT:%d, "
904 "BE:%d, BK:%d, VI:%d, VO:%d\n",
905 priv->wmi_cmd_ep,
906 priv->beacon_ep,
907 priv->cab_ep,
908 priv->uapsd_ep,
909 priv->mgmt_ep,
910 priv->data_be_ep,
911 priv->data_bk_ep,
912 priv->data_vi_ep,
913 priv->data_vo_ep);
914
915 ath9k_hw_name(priv->ah, hw_name, sizeof(hw_name));
916 wiphy_info(hw->wiphy, "%s\n", hw_name);
917
918 ath9k_init_leds(priv);
919 ath9k_start_rfkill_poll(priv);
920
921 return 0;
922
923err_world:
924 ieee80211_unregister_hw(hw);
925err_register:
926 ath9k_rx_cleanup(priv);
927err_rx:
928 ath9k_tx_cleanup(priv);
929err_tx:
930 /* Nothing */
931err_regd:
932 /* Nothing */
933err_fw:
934 ath9k_deinit_priv(priv);
935err_init:
936 return error;
937}
938
939int ath9k_htc_probe_device(struct htc_target *htc_handle, struct device *dev,
940 u16 devid, char *product, u32 drv_info)
941{
942 struct ieee80211_hw *hw;
943 struct ath9k_htc_priv *priv;
944 int ret;
945
946 hw = ieee80211_alloc_hw(sizeof(struct ath9k_htc_priv), &ath9k_htc_ops);
947 if (!hw)
948 return -ENOMEM;
949
950 priv = hw->priv;
951 priv->hw = hw;
952 priv->htc = htc_handle;
953 priv->dev = dev;
954 htc_handle->drv_priv = priv;
955 SET_IEEE80211_DEV(hw, priv->dev);
956
957 ret = ath9k_htc_wait_for_target(priv);
958 if (ret)
959 goto err_free;
960
961 priv->wmi = ath9k_init_wmi(priv);
962 if (!priv->wmi) {
963 ret = -EINVAL;
964 goto err_free;
965 }
966
967 ret = ath9k_init_htc_services(priv, devid, drv_info);
968 if (ret)
969 goto err_init;
970
971 ret = ath9k_init_device(priv, devid, product, drv_info);
972 if (ret)
973 goto err_init;
974
975 return 0;
976
977err_init:
978 ath9k_deinit_wmi(priv);
979err_free:
980 ieee80211_free_hw(hw);
981 return ret;
982}
983
984void ath9k_htc_disconnect_device(struct htc_target *htc_handle, bool hotunplug)
985{
986 if (htc_handle->drv_priv) {
987
988 /* Check if the device has been yanked out. */
989 if (hotunplug)
990 htc_handle->drv_priv->ah->ah_flags |= AH_UNPLUGGED;
991
992 ath9k_deinit_device(htc_handle->drv_priv);
993 ath9k_deinit_wmi(htc_handle->drv_priv);
994 ieee80211_free_hw(htc_handle->drv_priv->hw);
995 }
996}
997
998#ifdef CONFIG_PM
999
1000void ath9k_htc_suspend(struct htc_target *htc_handle)
1001{
1002 ath9k_htc_setpower(htc_handle->drv_priv, ATH9K_PM_FULL_SLEEP);
1003}
1004
1005int ath9k_htc_resume(struct htc_target *htc_handle)
1006{
1007 struct ath9k_htc_priv *priv = htc_handle->drv_priv;
1008 int ret;
1009
1010 ret = ath9k_htc_wait_for_target(priv);
1011 if (ret)
1012 return ret;
1013
1014 ret = ath9k_init_htc_services(priv, priv->ah->hw_version.devid,
1015 priv->ah->hw_version.usbdev);
1016 return ret;
1017}
1018#endif
1019
1020static int __init ath9k_htc_init(void)
1021{
1022 if (ath9k_hif_usb_init() < 0) {
1023 printk(KERN_ERR
1024 "ath9k_htc: No USB devices found,"
1025 " driver not installed.\n");
1026 return -ENODEV;
1027 }
1028
1029 return 0;
1030}
1031module_init(ath9k_htc_init);
1032
1033static void __exit ath9k_htc_exit(void)
1034{
1035 ath9k_hif_usb_exit();
1036 printk(KERN_INFO "ath9k_htc: Driver unloaded\n");
1037}
1038module_exit(ath9k_htc_exit);
1/*
2 * Copyright (c) 2010-2011 Atheros Communications Inc.
3 *
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.
7 *
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.
15 */
16
17#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
18
19#include "htc.h"
20
21MODULE_AUTHOR("Atheros Communications");
22MODULE_LICENSE("Dual BSD/GPL");
23MODULE_DESCRIPTION("Atheros driver 802.11n HTC based wireless devices");
24
25static unsigned int ath9k_debug = ATH_DBG_DEFAULT;
26module_param_named(debug, ath9k_debug, uint, 0);
27MODULE_PARM_DESC(debug, "Debugging mask");
28
29int htc_modparam_nohwcrypt;
30module_param_named(nohwcrypt, htc_modparam_nohwcrypt, int, 0444);
31MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption");
32
33static int ath9k_htc_btcoex_enable;
34module_param_named(btcoex_enable, ath9k_htc_btcoex_enable, int, 0444);
35MODULE_PARM_DESC(btcoex_enable, "Enable wifi-BT coexistence");
36
37static int ath9k_ps_enable;
38module_param_named(ps_enable, ath9k_ps_enable, int, 0444);
39MODULE_PARM_DESC(ps_enable, "Enable WLAN PowerSave");
40
41#ifdef CONFIG_MAC80211_LEDS
42static const struct ieee80211_tpt_blink ath9k_htc_tpt_blink[] = {
43 { .throughput = 0 * 1024, .blink_time = 334 },
44 { .throughput = 1 * 1024, .blink_time = 260 },
45 { .throughput = 5 * 1024, .blink_time = 220 },
46 { .throughput = 10 * 1024, .blink_time = 190 },
47 { .throughput = 20 * 1024, .blink_time = 170 },
48 { .throughput = 50 * 1024, .blink_time = 150 },
49 { .throughput = 70 * 1024, .blink_time = 130 },
50 { .throughput = 100 * 1024, .blink_time = 110 },
51 { .throughput = 200 * 1024, .blink_time = 80 },
52 { .throughput = 300 * 1024, .blink_time = 50 },
53};
54#endif
55
56static int ath9k_htc_wait_for_target(struct ath9k_htc_priv *priv)
57{
58 int time_left;
59
60 if (atomic_read(&priv->htc->tgt_ready) > 0) {
61 atomic_dec(&priv->htc->tgt_ready);
62 return 0;
63 }
64
65 /* Firmware can take up to 50ms to get ready, to be safe use 1 second */
66 time_left = wait_for_completion_timeout(&priv->htc->target_wait, HZ);
67 if (!time_left) {
68 dev_err(priv->dev, "ath9k_htc: Target is unresponsive\n");
69 return -ETIMEDOUT;
70 }
71
72 atomic_dec(&priv->htc->tgt_ready);
73
74 return 0;
75}
76
77static void ath9k_deinit_priv(struct ath9k_htc_priv *priv)
78{
79 ath9k_hw_deinit(priv->ah);
80 kfree(priv->ah);
81 priv->ah = NULL;
82}
83
84static void ath9k_deinit_device(struct ath9k_htc_priv *priv)
85{
86 struct ieee80211_hw *hw = priv->hw;
87
88 wiphy_rfkill_stop_polling(hw->wiphy);
89 ath9k_deinit_leds(priv);
90 ieee80211_unregister_hw(hw);
91 ath9k_rx_cleanup(priv);
92 ath9k_tx_cleanup(priv);
93 ath9k_deinit_priv(priv);
94}
95
96static inline int ath9k_htc_connect_svc(struct ath9k_htc_priv *priv,
97 u16 service_id,
98 void (*tx) (void *,
99 struct sk_buff *,
100 enum htc_endpoint_id,
101 bool txok),
102 enum htc_endpoint_id *ep_id)
103{
104 struct htc_service_connreq req;
105
106 memset(&req, 0, sizeof(struct htc_service_connreq));
107
108 req.service_id = service_id;
109 req.ep_callbacks.priv = priv;
110 req.ep_callbacks.rx = ath9k_htc_rxep;
111 req.ep_callbacks.tx = tx;
112
113 return htc_connect_service(priv->htc, &req, ep_id);
114}
115
116static int ath9k_init_htc_services(struct ath9k_htc_priv *priv, u16 devid,
117 u32 drv_info)
118{
119 int ret;
120
121 /* WMI CMD*/
122 ret = ath9k_wmi_connect(priv->htc, priv->wmi, &priv->wmi_cmd_ep);
123 if (ret)
124 goto err;
125
126 /* Beacon */
127 ret = ath9k_htc_connect_svc(priv, WMI_BEACON_SVC, ath9k_htc_beaconep,
128 &priv->beacon_ep);
129 if (ret)
130 goto err;
131
132 /* CAB */
133 ret = ath9k_htc_connect_svc(priv, WMI_CAB_SVC, ath9k_htc_txep,
134 &priv->cab_ep);
135 if (ret)
136 goto err;
137
138
139 /* UAPSD */
140 ret = ath9k_htc_connect_svc(priv, WMI_UAPSD_SVC, ath9k_htc_txep,
141 &priv->uapsd_ep);
142 if (ret)
143 goto err;
144
145 /* MGMT */
146 ret = ath9k_htc_connect_svc(priv, WMI_MGMT_SVC, ath9k_htc_txep,
147 &priv->mgmt_ep);
148 if (ret)
149 goto err;
150
151 /* DATA BE */
152 ret = ath9k_htc_connect_svc(priv, WMI_DATA_BE_SVC, ath9k_htc_txep,
153 &priv->data_be_ep);
154 if (ret)
155 goto err;
156
157 /* DATA BK */
158 ret = ath9k_htc_connect_svc(priv, WMI_DATA_BK_SVC, ath9k_htc_txep,
159 &priv->data_bk_ep);
160 if (ret)
161 goto err;
162
163 /* DATA VI */
164 ret = ath9k_htc_connect_svc(priv, WMI_DATA_VI_SVC, ath9k_htc_txep,
165 &priv->data_vi_ep);
166 if (ret)
167 goto err;
168
169 /* DATA VO */
170 ret = ath9k_htc_connect_svc(priv, WMI_DATA_VO_SVC, ath9k_htc_txep,
171 &priv->data_vo_ep);
172 if (ret)
173 goto err;
174
175 /*
176 * Setup required credits before initializing HTC.
177 * This is a bit hacky, but, since queuing is done in
178 * the HIF layer, shouldn't matter much.
179 */
180
181 if (IS_AR7010_DEVICE(drv_info))
182 priv->htc->credits = 45;
183 else
184 priv->htc->credits = 33;
185
186 ret = htc_init(priv->htc);
187 if (ret)
188 goto err;
189
190 dev_info(priv->dev, "ath9k_htc: HTC initialized with %d credits\n",
191 priv->htc->credits);
192
193 return 0;
194
195err:
196 dev_err(priv->dev, "ath9k_htc: Unable to initialize HTC services\n");
197 return ret;
198}
199
200static void ath9k_reg_notifier(struct wiphy *wiphy,
201 struct regulatory_request *request)
202{
203 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
204 struct ath9k_htc_priv *priv = hw->priv;
205
206 ath_reg_notifier_apply(wiphy, request,
207 ath9k_hw_regulatory(priv->ah));
208}
209
210static unsigned int ath9k_regread(void *hw_priv, u32 reg_offset)
211{
212 struct ath_hw *ah = (struct ath_hw *) hw_priv;
213 struct ath_common *common = ath9k_hw_common(ah);
214 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
215 __be32 val, reg = cpu_to_be32(reg_offset);
216 int r;
217
218 r = ath9k_wmi_cmd(priv->wmi, WMI_REG_READ_CMDID,
219 (u8 *) ®, sizeof(reg),
220 (u8 *) &val, sizeof(val),
221 100);
222 if (unlikely(r)) {
223 ath_dbg(common, WMI, "REGISTER READ FAILED: (0x%04x, %d)\n",
224 reg_offset, r);
225 return -EIO;
226 }
227
228 return be32_to_cpu(val);
229}
230
231static void ath9k_multi_regread(void *hw_priv, u32 *addr,
232 u32 *val, u16 count)
233{
234 struct ath_hw *ah = (struct ath_hw *) hw_priv;
235 struct ath_common *common = ath9k_hw_common(ah);
236 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
237 __be32 tmpaddr[8];
238 __be32 tmpval[8];
239 int i, ret;
240
241 for (i = 0; i < count; i++) {
242 tmpaddr[i] = cpu_to_be32(addr[i]);
243 }
244
245 ret = ath9k_wmi_cmd(priv->wmi, WMI_REG_READ_CMDID,
246 (u8 *)tmpaddr , sizeof(u32) * count,
247 (u8 *)tmpval, sizeof(u32) * count,
248 100);
249 if (unlikely(ret)) {
250 ath_dbg(common, WMI,
251 "Multiple REGISTER READ FAILED (count: %d)\n", count);
252 }
253
254 for (i = 0; i < count; i++) {
255 val[i] = be32_to_cpu(tmpval[i]);
256 }
257}
258
259static void ath9k_regwrite_multi(struct ath_common *common)
260{
261 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
262 u32 rsp_status;
263 int r;
264
265 r = ath9k_wmi_cmd(priv->wmi, WMI_REG_WRITE_CMDID,
266 (u8 *) &priv->wmi->multi_write,
267 sizeof(struct register_write) * priv->wmi->multi_write_idx,
268 (u8 *) &rsp_status, sizeof(rsp_status),
269 100);
270 if (unlikely(r)) {
271 ath_dbg(common, WMI,
272 "REGISTER WRITE FAILED, multi len: %d\n",
273 priv->wmi->multi_write_idx);
274 }
275 priv->wmi->multi_write_idx = 0;
276}
277
278static void ath9k_regwrite_single(void *hw_priv, u32 val, u32 reg_offset)
279{
280 struct ath_hw *ah = (struct ath_hw *) hw_priv;
281 struct ath_common *common = ath9k_hw_common(ah);
282 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
283 const __be32 buf[2] = {
284 cpu_to_be32(reg_offset),
285 cpu_to_be32(val),
286 };
287 int r;
288
289 r = ath9k_wmi_cmd(priv->wmi, WMI_REG_WRITE_CMDID,
290 (u8 *) &buf, sizeof(buf),
291 (u8 *) &val, sizeof(val),
292 100);
293 if (unlikely(r)) {
294 ath_dbg(common, WMI, "REGISTER WRITE FAILED:(0x%04x, %d)\n",
295 reg_offset, r);
296 }
297}
298
299static void ath9k_regwrite_buffer(void *hw_priv, u32 val, u32 reg_offset)
300{
301 struct ath_hw *ah = (struct ath_hw *) hw_priv;
302 struct ath_common *common = ath9k_hw_common(ah);
303 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
304
305 mutex_lock(&priv->wmi->multi_write_mutex);
306
307 /* Store the register/value */
308 priv->wmi->multi_write[priv->wmi->multi_write_idx].reg =
309 cpu_to_be32(reg_offset);
310 priv->wmi->multi_write[priv->wmi->multi_write_idx].val =
311 cpu_to_be32(val);
312
313 priv->wmi->multi_write_idx++;
314
315 /* If the buffer is full, send it out. */
316 if (priv->wmi->multi_write_idx == MAX_CMD_NUMBER)
317 ath9k_regwrite_multi(common);
318
319 mutex_unlock(&priv->wmi->multi_write_mutex);
320}
321
322static void ath9k_regwrite(void *hw_priv, u32 val, u32 reg_offset)
323{
324 struct ath_hw *ah = (struct ath_hw *) hw_priv;
325 struct ath_common *common = ath9k_hw_common(ah);
326 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
327
328 if (atomic_read(&priv->wmi->mwrite_cnt))
329 ath9k_regwrite_buffer(hw_priv, val, reg_offset);
330 else
331 ath9k_regwrite_single(hw_priv, val, reg_offset);
332}
333
334static void ath9k_enable_regwrite_buffer(void *hw_priv)
335{
336 struct ath_hw *ah = (struct ath_hw *) hw_priv;
337 struct ath_common *common = ath9k_hw_common(ah);
338 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
339
340 atomic_inc(&priv->wmi->mwrite_cnt);
341}
342
343static void ath9k_regwrite_flush(void *hw_priv)
344{
345 struct ath_hw *ah = (struct ath_hw *) hw_priv;
346 struct ath_common *common = ath9k_hw_common(ah);
347 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
348
349 atomic_dec(&priv->wmi->mwrite_cnt);
350
351 mutex_lock(&priv->wmi->multi_write_mutex);
352
353 if (priv->wmi->multi_write_idx)
354 ath9k_regwrite_multi(common);
355
356 mutex_unlock(&priv->wmi->multi_write_mutex);
357}
358
359static u32 ath9k_reg_rmw(void *hw_priv, u32 reg_offset, u32 set, u32 clr)
360{
361 u32 val;
362
363 val = ath9k_regread(hw_priv, reg_offset);
364 val &= ~clr;
365 val |= set;
366 ath9k_regwrite(hw_priv, val, reg_offset);
367 return val;
368}
369
370static void ath_usb_read_cachesize(struct ath_common *common, int *csz)
371{
372 *csz = L1_CACHE_BYTES >> 2;
373}
374
375static bool ath_usb_eeprom_read(struct ath_common *common, u32 off, u16 *data)
376{
377 struct ath_hw *ah = (struct ath_hw *) common->ah;
378
379 (void)REG_READ(ah, AR5416_EEPROM_OFFSET + (off << AR5416_EEPROM_S));
380
381 if (!ath9k_hw_wait(ah,
382 AR_EEPROM_STATUS_DATA,
383 AR_EEPROM_STATUS_DATA_BUSY |
384 AR_EEPROM_STATUS_DATA_PROT_ACCESS, 0,
385 AH_WAIT_TIMEOUT))
386 return false;
387
388 *data = MS(REG_READ(ah, AR_EEPROM_STATUS_DATA),
389 AR_EEPROM_STATUS_DATA_VAL);
390
391 return true;
392}
393
394static const struct ath_bus_ops ath9k_usb_bus_ops = {
395 .ath_bus_type = ATH_USB,
396 .read_cachesize = ath_usb_read_cachesize,
397 .eeprom_read = ath_usb_eeprom_read,
398};
399
400static int ath9k_init_queues(struct ath9k_htc_priv *priv)
401{
402 struct ath_common *common = ath9k_hw_common(priv->ah);
403 int i;
404
405 for (i = 0; i < ARRAY_SIZE(priv->hwq_map); i++)
406 priv->hwq_map[i] = -1;
407
408 priv->beacon.beaconq = ath9k_hw_beaconq_setup(priv->ah);
409 if (priv->beacon.beaconq == -1) {
410 ath_err(common, "Unable to setup BEACON xmit queue\n");
411 goto err;
412 }
413
414 priv->cabq = ath9k_htc_cabq_setup(priv);
415 if (priv->cabq == -1) {
416 ath_err(common, "Unable to setup CAB xmit queue\n");
417 goto err;
418 }
419
420 if (!ath9k_htc_txq_setup(priv, IEEE80211_AC_BE)) {
421 ath_err(common, "Unable to setup xmit queue for BE traffic\n");
422 goto err;
423 }
424
425 if (!ath9k_htc_txq_setup(priv, IEEE80211_AC_BK)) {
426 ath_err(common, "Unable to setup xmit queue for BK traffic\n");
427 goto err;
428 }
429 if (!ath9k_htc_txq_setup(priv, IEEE80211_AC_VI)) {
430 ath_err(common, "Unable to setup xmit queue for VI traffic\n");
431 goto err;
432 }
433 if (!ath9k_htc_txq_setup(priv, IEEE80211_AC_VO)) {
434 ath_err(common, "Unable to setup xmit queue for VO traffic\n");
435 goto err;
436 }
437
438 return 0;
439
440err:
441 return -EINVAL;
442}
443
444static void ath9k_init_misc(struct ath9k_htc_priv *priv)
445{
446 struct ath_common *common = ath9k_hw_common(priv->ah);
447
448 memcpy(common->bssidmask, ath_bcast_mac, ETH_ALEN);
449
450 common->last_rssi = ATH_RSSI_DUMMY_MARKER;
451 priv->ah->opmode = NL80211_IFTYPE_STATION;
452}
453
454static int ath9k_init_priv(struct ath9k_htc_priv *priv,
455 u16 devid, char *product,
456 u32 drv_info)
457{
458 struct ath_hw *ah = NULL;
459 struct ath_common *common;
460 int i, ret = 0, csz = 0;
461
462 ah = kzalloc(sizeof(struct ath_hw), GFP_KERNEL);
463 if (!ah)
464 return -ENOMEM;
465
466 ah->dev = priv->dev;
467 ah->hw_version.devid = devid;
468 ah->hw_version.usbdev = drv_info;
469 ah->ah_flags |= AH_USE_EEPROM;
470 ah->reg_ops.read = ath9k_regread;
471 ah->reg_ops.multi_read = ath9k_multi_regread;
472 ah->reg_ops.write = ath9k_regwrite;
473 ah->reg_ops.enable_write_buffer = ath9k_enable_regwrite_buffer;
474 ah->reg_ops.write_flush = ath9k_regwrite_flush;
475 ah->reg_ops.rmw = ath9k_reg_rmw;
476 priv->ah = ah;
477
478 common = ath9k_hw_common(ah);
479 common->ops = &ah->reg_ops;
480 common->bus_ops = &ath9k_usb_bus_ops;
481 common->ah = ah;
482 common->hw = priv->hw;
483 common->priv = priv;
484 common->debug_mask = ath9k_debug;
485 common->btcoex_enabled = ath9k_htc_btcoex_enable == 1;
486 set_bit(ATH_OP_INVALID, &common->op_flags);
487
488 spin_lock_init(&priv->beacon_lock);
489 spin_lock_init(&priv->tx.tx_lock);
490 mutex_init(&priv->mutex);
491 mutex_init(&priv->htc_pm_lock);
492 tasklet_init(&priv->rx_tasklet, ath9k_rx_tasklet,
493 (unsigned long)priv);
494 tasklet_init(&priv->tx_failed_tasklet, ath9k_tx_failed_tasklet,
495 (unsigned long)priv);
496 INIT_DELAYED_WORK(&priv->ani_work, ath9k_htc_ani_work);
497 INIT_WORK(&priv->ps_work, ath9k_ps_work);
498 INIT_WORK(&priv->fatal_work, ath9k_fatal_work);
499 setup_timer(&priv->tx.cleanup_timer, ath9k_htc_tx_cleanup_timer,
500 (unsigned long)priv);
501
502 /*
503 * Cache line size is used to size and align various
504 * structures used to communicate with the hardware.
505 */
506 ath_read_cachesize(common, &csz);
507 common->cachelsz = csz << 2; /* convert to bytes */
508
509 ret = ath9k_hw_init(ah);
510 if (ret) {
511 ath_err(common,
512 "Unable to initialize hardware; initialization status: %d\n",
513 ret);
514 goto err_hw;
515 }
516
517 ret = ath9k_init_queues(priv);
518 if (ret)
519 goto err_queues;
520
521 for (i = 0; i < ATH9K_HTC_MAX_BCN_VIF; i++)
522 priv->beacon.bslot[i] = NULL;
523 priv->beacon.slottime = ATH9K_SLOT_TIME_9;
524
525 ath9k_cmn_init_channels_rates(common);
526 ath9k_cmn_init_crypto(ah);
527 ath9k_init_misc(priv);
528 ath9k_htc_init_btcoex(priv, product);
529
530 return 0;
531
532err_queues:
533 ath9k_hw_deinit(ah);
534err_hw:
535
536 kfree(ah);
537 priv->ah = NULL;
538
539 return ret;
540}
541
542static const struct ieee80211_iface_limit if_limits[] = {
543 { .max = 2, .types = BIT(NL80211_IFTYPE_STATION) |
544 BIT(NL80211_IFTYPE_P2P_CLIENT) },
545 { .max = 2, .types = BIT(NL80211_IFTYPE_AP) |
546#ifdef CONFIG_MAC80211_MESH
547 BIT(NL80211_IFTYPE_MESH_POINT) |
548#endif
549 BIT(NL80211_IFTYPE_P2P_GO) },
550};
551
552static const struct ieee80211_iface_combination if_comb = {
553 .limits = if_limits,
554 .n_limits = ARRAY_SIZE(if_limits),
555 .max_interfaces = 2,
556 .num_different_channels = 1,
557};
558
559static void ath9k_set_hw_capab(struct ath9k_htc_priv *priv,
560 struct ieee80211_hw *hw)
561{
562 struct ath_hw *ah = priv->ah;
563 struct ath_common *common = ath9k_hw_common(priv->ah);
564 struct base_eep_header *pBase;
565
566 hw->flags = IEEE80211_HW_SIGNAL_DBM |
567 IEEE80211_HW_AMPDU_AGGREGATION |
568 IEEE80211_HW_SPECTRUM_MGMT |
569 IEEE80211_HW_HAS_RATE_CONTROL |
570 IEEE80211_HW_RX_INCLUDES_FCS |
571 IEEE80211_HW_PS_NULLFUNC_STACK |
572 IEEE80211_HW_REPORTS_TX_ACK_STATUS |
573 IEEE80211_HW_MFP_CAPABLE |
574 IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING;
575
576 if (ath9k_ps_enable)
577 hw->flags |= IEEE80211_HW_SUPPORTS_PS;
578
579 hw->wiphy->interface_modes =
580 BIT(NL80211_IFTYPE_STATION) |
581 BIT(NL80211_IFTYPE_ADHOC) |
582 BIT(NL80211_IFTYPE_AP) |
583 BIT(NL80211_IFTYPE_P2P_GO) |
584 BIT(NL80211_IFTYPE_P2P_CLIENT) |
585 BIT(NL80211_IFTYPE_MESH_POINT);
586
587 hw->wiphy->iface_combinations = &if_comb;
588 hw->wiphy->n_iface_combinations = 1;
589
590 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
591
592 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN |
593 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
594
595 hw->queues = 4;
596 hw->max_listen_interval = 1;
597
598 hw->vif_data_size = sizeof(struct ath9k_htc_vif);
599 hw->sta_data_size = sizeof(struct ath9k_htc_sta);
600
601 /* tx_frame_hdr is larger than tx_mgmt_hdr anyway */
602 hw->extra_tx_headroom = sizeof(struct tx_frame_hdr) +
603 sizeof(struct htc_frame_hdr) + 4;
604
605 if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_2GHZ)
606 hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
607 &common->sbands[IEEE80211_BAND_2GHZ];
608 if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_5GHZ)
609 hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
610 &common->sbands[IEEE80211_BAND_5GHZ];
611
612 ath9k_cmn_reload_chainmask(ah);
613
614 pBase = ath9k_htc_get_eeprom_base(priv);
615 if (pBase) {
616 hw->wiphy->available_antennas_rx = pBase->rxMask;
617 hw->wiphy->available_antennas_tx = pBase->txMask;
618 }
619
620 SET_IEEE80211_PERM_ADDR(hw, common->macaddr);
621}
622
623static int ath9k_init_firmware_version(struct ath9k_htc_priv *priv)
624{
625 struct ieee80211_hw *hw = priv->hw;
626 struct wmi_fw_version cmd_rsp;
627 int ret;
628
629 memset(&cmd_rsp, 0, sizeof(cmd_rsp));
630
631 WMI_CMD(WMI_GET_FW_VERSION);
632 if (ret)
633 return -EINVAL;
634
635 priv->fw_version_major = be16_to_cpu(cmd_rsp.major);
636 priv->fw_version_minor = be16_to_cpu(cmd_rsp.minor);
637
638 snprintf(hw->wiphy->fw_version, sizeof(hw->wiphy->fw_version), "%d.%d",
639 priv->fw_version_major,
640 priv->fw_version_minor);
641
642 dev_info(priv->dev, "ath9k_htc: FW Version: %d.%d\n",
643 priv->fw_version_major,
644 priv->fw_version_minor);
645
646 /*
647 * Check if the available FW matches the driver's
648 * required version.
649 */
650 if (priv->fw_version_major != MAJOR_VERSION_REQ ||
651 priv->fw_version_minor < MINOR_VERSION_REQ) {
652 dev_err(priv->dev, "ath9k_htc: Please upgrade to FW version %d.%d\n",
653 MAJOR_VERSION_REQ, MINOR_VERSION_REQ);
654 return -EINVAL;
655 }
656
657 return 0;
658}
659
660static int ath9k_init_device(struct ath9k_htc_priv *priv,
661 u16 devid, char *product, u32 drv_info)
662{
663 struct ieee80211_hw *hw = priv->hw;
664 struct ath_common *common;
665 struct ath_hw *ah;
666 int error = 0;
667 struct ath_regulatory *reg;
668 char hw_name[64];
669
670 /* Bring up device */
671 error = ath9k_init_priv(priv, devid, product, drv_info);
672 if (error != 0)
673 goto err_init;
674
675 ah = priv->ah;
676 common = ath9k_hw_common(ah);
677 ath9k_set_hw_capab(priv, hw);
678
679 error = ath9k_init_firmware_version(priv);
680 if (error != 0)
681 goto err_fw;
682
683 /* Initialize regulatory */
684 error = ath_regd_init(&common->regulatory, priv->hw->wiphy,
685 ath9k_reg_notifier);
686 if (error)
687 goto err_regd;
688
689 reg = &common->regulatory;
690
691 /* Setup TX */
692 error = ath9k_tx_init(priv);
693 if (error != 0)
694 goto err_tx;
695
696 /* Setup RX */
697 error = ath9k_rx_init(priv);
698 if (error != 0)
699 goto err_rx;
700
701 ath9k_hw_disable(priv->ah);
702#ifdef CONFIG_MAC80211_LEDS
703 /* must be initialized before ieee80211_register_hw */
704 priv->led_cdev.default_trigger = ieee80211_create_tpt_led_trigger(priv->hw,
705 IEEE80211_TPT_LEDTRIG_FL_RADIO, ath9k_htc_tpt_blink,
706 ARRAY_SIZE(ath9k_htc_tpt_blink));
707#endif
708
709 /* Register with mac80211 */
710 error = ieee80211_register_hw(hw);
711 if (error)
712 goto err_register;
713
714 /* Handle world regulatory */
715 if (!ath_is_world_regd(reg)) {
716 error = regulatory_hint(hw->wiphy, reg->alpha2);
717 if (error)
718 goto err_world;
719 }
720
721 error = ath9k_htc_init_debug(priv->ah);
722 if (error) {
723 ath_err(common, "Unable to create debugfs files\n");
724 goto err_world;
725 }
726
727 ath_dbg(common, CONFIG,
728 "WMI:%d, BCN:%d, CAB:%d, UAPSD:%d, MGMT:%d, BE:%d, BK:%d, VI:%d, VO:%d\n",
729 priv->wmi_cmd_ep,
730 priv->beacon_ep,
731 priv->cab_ep,
732 priv->uapsd_ep,
733 priv->mgmt_ep,
734 priv->data_be_ep,
735 priv->data_bk_ep,
736 priv->data_vi_ep,
737 priv->data_vo_ep);
738
739 ath9k_hw_name(priv->ah, hw_name, sizeof(hw_name));
740 wiphy_info(hw->wiphy, "%s\n", hw_name);
741
742 ath9k_init_leds(priv);
743 ath9k_start_rfkill_poll(priv);
744
745 return 0;
746
747err_world:
748 ieee80211_unregister_hw(hw);
749err_register:
750 ath9k_rx_cleanup(priv);
751err_rx:
752 ath9k_tx_cleanup(priv);
753err_tx:
754 /* Nothing */
755err_regd:
756 /* Nothing */
757err_fw:
758 ath9k_deinit_priv(priv);
759err_init:
760 return error;
761}
762
763int ath9k_htc_probe_device(struct htc_target *htc_handle, struct device *dev,
764 u16 devid, char *product, u32 drv_info)
765{
766 struct ieee80211_hw *hw;
767 struct ath9k_htc_priv *priv;
768 int ret;
769
770 hw = ieee80211_alloc_hw(sizeof(struct ath9k_htc_priv), &ath9k_htc_ops);
771 if (!hw)
772 return -ENOMEM;
773
774 priv = hw->priv;
775 priv->hw = hw;
776 priv->htc = htc_handle;
777 priv->dev = dev;
778 htc_handle->drv_priv = priv;
779 SET_IEEE80211_DEV(hw, priv->dev);
780
781 ret = ath9k_htc_wait_for_target(priv);
782 if (ret)
783 goto err_free;
784
785 priv->wmi = ath9k_init_wmi(priv);
786 if (!priv->wmi) {
787 ret = -EINVAL;
788 goto err_free;
789 }
790
791 ret = ath9k_init_htc_services(priv, devid, drv_info);
792 if (ret)
793 goto err_init;
794
795 ret = ath9k_init_device(priv, devid, product, drv_info);
796 if (ret)
797 goto err_init;
798
799 return 0;
800
801err_init:
802 ath9k_deinit_wmi(priv);
803err_free:
804 ieee80211_free_hw(hw);
805 return ret;
806}
807
808void ath9k_htc_disconnect_device(struct htc_target *htc_handle, bool hotunplug)
809{
810 if (htc_handle->drv_priv) {
811
812 /* Check if the device has been yanked out. */
813 if (hotunplug)
814 htc_handle->drv_priv->ah->ah_flags |= AH_UNPLUGGED;
815
816 ath9k_deinit_device(htc_handle->drv_priv);
817 ath9k_deinit_wmi(htc_handle->drv_priv);
818 ieee80211_free_hw(htc_handle->drv_priv->hw);
819 }
820}
821
822#ifdef CONFIG_PM
823
824void ath9k_htc_suspend(struct htc_target *htc_handle)
825{
826 ath9k_htc_setpower(htc_handle->drv_priv, ATH9K_PM_FULL_SLEEP);
827}
828
829int ath9k_htc_resume(struct htc_target *htc_handle)
830{
831 struct ath9k_htc_priv *priv = htc_handle->drv_priv;
832 int ret;
833
834 ret = ath9k_htc_wait_for_target(priv);
835 if (ret)
836 return ret;
837
838 ret = ath9k_init_htc_services(priv, priv->ah->hw_version.devid,
839 priv->ah->hw_version.usbdev);
840 ath9k_configure_leds(priv);
841
842 return ret;
843}
844#endif
845
846static int __init ath9k_htc_init(void)
847{
848 if (ath9k_hif_usb_init() < 0) {
849 pr_err("No USB devices found, driver not installed\n");
850 return -ENODEV;
851 }
852
853 return 0;
854}
855module_init(ath9k_htc_init);
856
857static void __exit ath9k_htc_exit(void)
858{
859 ath9k_hif_usb_exit();
860 pr_info("Driver unloaded\n");
861}
862module_exit(ath9k_htc_exit);