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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),
48 CHAN2G(2417, 1),
49 CHAN2G(2422, 2),
50 CHAN2G(2427, 3),
51 CHAN2G(2432, 4),
52 CHAN2G(2437, 5),
53 CHAN2G(2442, 6),
54 CHAN2G(2447, 7),
55 CHAN2G(2452, 8),
56 CHAN2G(2457, 9),
57 CHAN2G(2462, 10),
58 CHAN2G(2467, 11),
59 CHAN2G(2472, 12),
60 CHAN2G(2484, 13),
61};
62
63static struct ieee80211_channel ath9k_5ghz_channels[] = {
64
65 CHAN5G(5180, 14),
66 CHAN5G(5200, 15),
67 CHAN5G(5220, 16),
68 CHAN5G(5240, 17),
69
70 CHAN5G(5260, 18),
71 CHAN5G(5280, 19),
72 CHAN5G(5300, 20),
73 CHAN5G(5320, 21),
74
75 CHAN5G(5500, 22),
76 CHAN5G(5520, 23),
77 CHAN5G(5540, 24),
78 CHAN5G(5560, 25),
79 CHAN5G(5580, 26),
80 CHAN5G(5600, 27),
81 CHAN5G(5620, 28),
82 CHAN5G(5640, 29),
83 CHAN5G(5660, 30),
84 CHAN5G(5680, 31),
85 CHAN5G(5700, 32),
86
87 CHAN5G(5745, 33),
88 CHAN5G(5765, 34),
89 CHAN5G(5785, 35),
90 CHAN5G(5805, 36),
91 CHAN5G(5825, 37),
92};
93
94
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),
108 RATE(55, 0x19, IEEE80211_RATE_SHORT_PREAMBLE),
109 RATE(110, 0x18, IEEE80211_RATE_SHORT_PREAMBLE),
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
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
201 ret = ath9k_wmi_connect(priv->htc, priv->wmi, &priv->wmi_cmd_ep);
202 if (ret)
203 goto err;
204
205
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
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
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
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
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
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
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
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
256
257
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
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
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
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
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
588
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;
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
704
705
706 ath_read_cachesize(common, &csz);
707 common->cachelsz = csz << 2;
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
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
824
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
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
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
868 error = ath9k_tx_init(priv);
869 if (error != 0)
870 goto err_tx;
871
872
873 error = ath9k_rx_init(priv);
874 if (error != 0)
875 goto err_rx;
876
877#ifdef CONFIG_MAC80211_LEDS
878
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
885 error = ieee80211_register_hw(hw);
886 if (error)
887 goto err_register;
888
889
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
931err_regd:
932
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
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);
1039
