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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
41int htc_use_dev_fw = 0;
42module_param_named(use_dev_fw, htc_use_dev_fw, int, 0444);
43MODULE_PARM_DESC(use_dev_fw, "Use development FW version");
44
45#ifdef CONFIG_MAC80211_LEDS
46int ath9k_htc_led_blink = 1;
47module_param_named(blink, ath9k_htc_led_blink, int, 0444);
48MODULE_PARM_DESC(blink, "Enable LED blink on activity");
49
50static const struct ieee80211_tpt_blink ath9k_htc_tpt_blink[] = {
51 { .throughput = 0 * 1024, .blink_time = 334 },
52 { .throughput = 1 * 1024, .blink_time = 260 },
53 { .throughput = 5 * 1024, .blink_time = 220 },
54 { .throughput = 10 * 1024, .blink_time = 190 },
55 { .throughput = 20 * 1024, .blink_time = 170 },
56 { .throughput = 50 * 1024, .blink_time = 150 },
57 { .throughput = 70 * 1024, .blink_time = 130 },
58 { .throughput = 100 * 1024, .blink_time = 110 },
59 { .throughput = 200 * 1024, .blink_time = 80 },
60 { .throughput = 300 * 1024, .blink_time = 50 },
61};
62#endif
63
64static void ath9k_htc_op_ps_wakeup(struct ath_common *common)
65{
66 ath9k_htc_ps_wakeup((struct ath9k_htc_priv *) common->priv);
67}
68
69static void ath9k_htc_op_ps_restore(struct ath_common *common)
70{
71 ath9k_htc_ps_restore((struct ath9k_htc_priv *) common->priv);
72}
73
74static const struct ath_ps_ops ath9k_htc_ps_ops = {
75 .wakeup = ath9k_htc_op_ps_wakeup,
76 .restore = ath9k_htc_op_ps_restore,
77};
78
79static int ath9k_htc_wait_for_target(struct ath9k_htc_priv *priv)
80{
81 unsigned long time_left;
82
83 if (atomic_read(&priv->htc->tgt_ready) > 0) {
84 atomic_dec(&priv->htc->tgt_ready);
85 return 0;
86 }
87
88
89 time_left = wait_for_completion_timeout(&priv->htc->target_wait, HZ);
90 if (!time_left) {
91 dev_err(priv->dev, "ath9k_htc: Target is unresponsive\n");
92 return -ETIMEDOUT;
93 }
94
95 atomic_dec(&priv->htc->tgt_ready);
96
97 return 0;
98}
99
100static void ath9k_deinit_priv(struct ath9k_htc_priv *priv)
101{
102 ath9k_hw_deinit(priv->ah);
103 kfree(priv->ah);
104 priv->ah = NULL;
105}
106
107static void ath9k_deinit_device(struct ath9k_htc_priv *priv)
108{
109 struct ieee80211_hw *hw = priv->hw;
110
111 wiphy_rfkill_stop_polling(hw->wiphy);
112 ath9k_deinit_leds(priv);
113 ath9k_htc_deinit_debug(priv);
114 ieee80211_unregister_hw(hw);
115 ath9k_rx_cleanup(priv);
116 ath9k_tx_cleanup(priv);
117 ath9k_deinit_priv(priv);
118}
119
120static inline int ath9k_htc_connect_svc(struct ath9k_htc_priv *priv,
121 u16 service_id,
122 void (*tx) (void *,
123 struct sk_buff *,
124 enum htc_endpoint_id,
125 bool txok),
126 enum htc_endpoint_id *ep_id)
127{
128 struct htc_service_connreq req;
129
130 memset(&req, 0, sizeof(struct htc_service_connreq));
131
132 req.service_id = service_id;
133 req.ep_callbacks.priv = priv;
134 req.ep_callbacks.rx = ath9k_htc_rxep;
135 req.ep_callbacks.tx = tx;
136
137 return htc_connect_service(priv->htc, &req, ep_id);
138}
139
140static int ath9k_init_htc_services(struct ath9k_htc_priv *priv, u16 devid,
141 u32 drv_info)
142{
143 int ret;
144
145
146 ret = ath9k_wmi_connect(priv->htc, priv->wmi, &priv->wmi_cmd_ep);
147 if (ret)
148 goto err;
149
150
151 ret = ath9k_htc_connect_svc(priv, WMI_BEACON_SVC, ath9k_htc_beaconep,
152 &priv->beacon_ep);
153 if (ret)
154 goto err;
155
156
157 ret = ath9k_htc_connect_svc(priv, WMI_CAB_SVC, ath9k_htc_txep,
158 &priv->cab_ep);
159 if (ret)
160 goto err;
161
162
163
164 ret = ath9k_htc_connect_svc(priv, WMI_UAPSD_SVC, ath9k_htc_txep,
165 &priv->uapsd_ep);
166 if (ret)
167 goto err;
168
169
170 ret = ath9k_htc_connect_svc(priv, WMI_MGMT_SVC, ath9k_htc_txep,
171 &priv->mgmt_ep);
172 if (ret)
173 goto err;
174
175
176 ret = ath9k_htc_connect_svc(priv, WMI_DATA_BE_SVC, ath9k_htc_txep,
177 &priv->data_be_ep);
178 if (ret)
179 goto err;
180
181
182 ret = ath9k_htc_connect_svc(priv, WMI_DATA_BK_SVC, ath9k_htc_txep,
183 &priv->data_bk_ep);
184 if (ret)
185 goto err;
186
187
188 ret = ath9k_htc_connect_svc(priv, WMI_DATA_VI_SVC, ath9k_htc_txep,
189 &priv->data_vi_ep);
190 if (ret)
191 goto err;
192
193
194 ret = ath9k_htc_connect_svc(priv, WMI_DATA_VO_SVC, ath9k_htc_txep,
195 &priv->data_vo_ep);
196 if (ret)
197 goto err;
198
199
200
201
202
203
204
205 if (IS_AR7010_DEVICE(drv_info))
206 priv->htc->credits = 45;
207 else
208 priv->htc->credits = 33;
209
210 ret = htc_init(priv->htc);
211 if (ret)
212 goto err;
213
214 dev_info(priv->dev, "ath9k_htc: HTC initialized with %d credits\n",
215 priv->htc->credits);
216
217 return 0;
218
219err:
220 dev_err(priv->dev, "ath9k_htc: Unable to initialize HTC services\n");
221 return ret;
222}
223
224static void ath9k_reg_notifier(struct wiphy *wiphy,
225 struct regulatory_request *request)
226{
227 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
228 struct ath9k_htc_priv *priv = hw->priv;
229
230 ath_reg_notifier_apply(wiphy, request,
231 ath9k_hw_regulatory(priv->ah));
232}
233
234static unsigned int ath9k_regread(void *hw_priv, u32 reg_offset)
235{
236 struct ath_hw *ah = hw_priv;
237 struct ath_common *common = ath9k_hw_common(ah);
238 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
239 __be32 val, reg = cpu_to_be32(reg_offset);
240 int r;
241
242 r = ath9k_wmi_cmd(priv->wmi, WMI_REG_READ_CMDID,
243 (u8 *) ®, sizeof(reg),
244 (u8 *) &val, sizeof(val),
245 100);
246 if (unlikely(r)) {
247 ath_dbg(common, WMI, "REGISTER READ FAILED: (0x%04x, %d)\n",
248 reg_offset, r);
249 return -EIO;
250 }
251
252 return be32_to_cpu(val);
253}
254
255static void ath9k_multi_regread(void *hw_priv, u32 *addr,
256 u32 *val, u16 count)
257{
258 struct ath_hw *ah = hw_priv;
259 struct ath_common *common = ath9k_hw_common(ah);
260 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
261 __be32 tmpaddr[8];
262 __be32 tmpval[8];
263 int i, ret;
264
265 for (i = 0; i < count; i++) {
266 tmpaddr[i] = cpu_to_be32(addr[i]);
267 }
268
269 ret = ath9k_wmi_cmd(priv->wmi, WMI_REG_READ_CMDID,
270 (u8 *)tmpaddr , sizeof(u32) * count,
271 (u8 *)tmpval, sizeof(u32) * count,
272 100);
273 if (unlikely(ret)) {
274 ath_dbg(common, WMI,
275 "Multiple REGISTER READ FAILED (count: %d)\n", count);
276 }
277
278 for (i = 0; i < count; i++) {
279 val[i] = be32_to_cpu(tmpval[i]);
280 }
281}
282
283static void ath9k_regwrite_multi(struct ath_common *common)
284{
285 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
286 u32 rsp_status;
287 int r;
288
289 r = ath9k_wmi_cmd(priv->wmi, WMI_REG_WRITE_CMDID,
290 (u8 *) &priv->wmi->multi_write,
291 sizeof(struct register_write) * priv->wmi->multi_write_idx,
292 (u8 *) &rsp_status, sizeof(rsp_status),
293 100);
294 if (unlikely(r)) {
295 ath_dbg(common, WMI,
296 "REGISTER WRITE FAILED, multi len: %d\n",
297 priv->wmi->multi_write_idx);
298 }
299 priv->wmi->multi_write_idx = 0;
300}
301
302static void ath9k_regwrite_single(void *hw_priv, u32 val, u32 reg_offset)
303{
304 struct ath_hw *ah = hw_priv;
305 struct ath_common *common = ath9k_hw_common(ah);
306 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
307 const __be32 buf[2] = {
308 cpu_to_be32(reg_offset),
309 cpu_to_be32(val),
310 };
311 int r;
312
313 r = ath9k_wmi_cmd(priv->wmi, WMI_REG_WRITE_CMDID,
314 (u8 *) &buf, sizeof(buf),
315 (u8 *) &val, sizeof(val),
316 100);
317 if (unlikely(r)) {
318 ath_dbg(common, WMI, "REGISTER WRITE FAILED:(0x%04x, %d)\n",
319 reg_offset, r);
320 }
321}
322
323static void ath9k_regwrite_buffer(void *hw_priv, u32 val, u32 reg_offset)
324{
325 struct ath_hw *ah = hw_priv;
326 struct ath_common *common = ath9k_hw_common(ah);
327 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
328
329 mutex_lock(&priv->wmi->multi_write_mutex);
330
331
332 priv->wmi->multi_write[priv->wmi->multi_write_idx].reg =
333 cpu_to_be32(reg_offset);
334 priv->wmi->multi_write[priv->wmi->multi_write_idx].val =
335 cpu_to_be32(val);
336
337 priv->wmi->multi_write_idx++;
338
339
340 if (priv->wmi->multi_write_idx == MAX_CMD_NUMBER)
341 ath9k_regwrite_multi(common);
342
343 mutex_unlock(&priv->wmi->multi_write_mutex);
344}
345
346static void ath9k_regwrite(void *hw_priv, u32 val, u32 reg_offset)
347{
348 struct ath_hw *ah = hw_priv;
349 struct ath_common *common = ath9k_hw_common(ah);
350 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
351
352 if (atomic_read(&priv->wmi->mwrite_cnt))
353 ath9k_regwrite_buffer(hw_priv, val, reg_offset);
354 else
355 ath9k_regwrite_single(hw_priv, val, reg_offset);
356}
357
358static void ath9k_enable_regwrite_buffer(void *hw_priv)
359{
360 struct ath_hw *ah = hw_priv;
361 struct ath_common *common = ath9k_hw_common(ah);
362 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
363
364 atomic_inc(&priv->wmi->mwrite_cnt);
365}
366
367static void ath9k_regwrite_flush(void *hw_priv)
368{
369 struct ath_hw *ah = hw_priv;
370 struct ath_common *common = ath9k_hw_common(ah);
371 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
372
373 atomic_dec(&priv->wmi->mwrite_cnt);
374
375 mutex_lock(&priv->wmi->multi_write_mutex);
376
377 if (priv->wmi->multi_write_idx)
378 ath9k_regwrite_multi(common);
379
380 mutex_unlock(&priv->wmi->multi_write_mutex);
381}
382
383static void ath9k_reg_rmw_buffer(void *hw_priv,
384 u32 reg_offset, u32 set, u32 clr)
385{
386 struct ath_hw *ah = hw_priv;
387 struct ath_common *common = ath9k_hw_common(ah);
388 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
389 u32 rsp_status;
390 int r;
391
392 mutex_lock(&priv->wmi->multi_rmw_mutex);
393
394
395 priv->wmi->multi_rmw[priv->wmi->multi_rmw_idx].reg =
396 cpu_to_be32(reg_offset);
397 priv->wmi->multi_rmw[priv->wmi->multi_rmw_idx].set =
398 cpu_to_be32(set);
399 priv->wmi->multi_rmw[priv->wmi->multi_rmw_idx].clr =
400 cpu_to_be32(clr);
401
402 priv->wmi->multi_rmw_idx++;
403
404
405 if (priv->wmi->multi_rmw_idx == MAX_RMW_CMD_NUMBER) {
406 r = ath9k_wmi_cmd(priv->wmi, WMI_REG_RMW_CMDID,
407 (u8 *) &priv->wmi->multi_rmw,
408 sizeof(struct register_write) * priv->wmi->multi_rmw_idx,
409 (u8 *) &rsp_status, sizeof(rsp_status),
410 100);
411 if (unlikely(r)) {
412 ath_dbg(common, WMI,
413 "REGISTER RMW FAILED, multi len: %d\n",
414 priv->wmi->multi_rmw_idx);
415 }
416 priv->wmi->multi_rmw_idx = 0;
417 }
418
419 mutex_unlock(&priv->wmi->multi_rmw_mutex);
420}
421
422static void ath9k_reg_rmw_flush(void *hw_priv)
423{
424 struct ath_hw *ah = hw_priv;
425 struct ath_common *common = ath9k_hw_common(ah);
426 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
427 u32 rsp_status;
428 int r;
429
430 if (test_bit(HTC_FWFLAG_NO_RMW, &priv->fw_flags))
431 return;
432
433 atomic_dec(&priv->wmi->m_rmw_cnt);
434
435 mutex_lock(&priv->wmi->multi_rmw_mutex);
436
437 if (priv->wmi->multi_rmw_idx) {
438 r = ath9k_wmi_cmd(priv->wmi, WMI_REG_RMW_CMDID,
439 (u8 *) &priv->wmi->multi_rmw,
440 sizeof(struct register_rmw) * priv->wmi->multi_rmw_idx,
441 (u8 *) &rsp_status, sizeof(rsp_status),
442 100);
443 if (unlikely(r)) {
444 ath_dbg(common, WMI,
445 "REGISTER RMW FAILED, multi len: %d\n",
446 priv->wmi->multi_rmw_idx);
447 }
448 priv->wmi->multi_rmw_idx = 0;
449 }
450
451 mutex_unlock(&priv->wmi->multi_rmw_mutex);
452}
453
454static void ath9k_enable_rmw_buffer(void *hw_priv)
455{
456 struct ath_hw *ah = hw_priv;
457 struct ath_common *common = ath9k_hw_common(ah);
458 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
459
460 if (test_bit(HTC_FWFLAG_NO_RMW, &priv->fw_flags))
461 return;
462
463 atomic_inc(&priv->wmi->m_rmw_cnt);
464}
465
466static u32 ath9k_reg_rmw_single(void *hw_priv,
467 u32 reg_offset, u32 set, u32 clr)
468{
469 struct ath_hw *ah = hw_priv;
470 struct ath_common *common = ath9k_hw_common(ah);
471 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
472 struct register_rmw buf, buf_ret;
473 int ret;
474 u32 val = 0;
475
476 buf.reg = cpu_to_be32(reg_offset);
477 buf.set = cpu_to_be32(set);
478 buf.clr = cpu_to_be32(clr);
479
480 ret = ath9k_wmi_cmd(priv->wmi, WMI_REG_RMW_CMDID,
481 (u8 *) &buf, sizeof(buf),
482 (u8 *) &buf_ret, sizeof(buf_ret),
483 100);
484 if (unlikely(ret)) {
485 ath_dbg(common, WMI, "REGISTER RMW FAILED:(0x%04x, %d)\n",
486 reg_offset, ret);
487 }
488 return val;
489}
490
491static u32 ath9k_reg_rmw(void *hw_priv, u32 reg_offset, u32 set, u32 clr)
492{
493 struct ath_hw *ah = hw_priv;
494 struct ath_common *common = ath9k_hw_common(ah);
495 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
496
497 if (test_bit(HTC_FWFLAG_NO_RMW, &priv->fw_flags)) {
498 u32 val;
499
500 val = REG_READ(ah, reg_offset);
501 val &= ~clr;
502 val |= set;
503 REG_WRITE(ah, reg_offset, val);
504
505 return 0;
506 }
507
508 if (atomic_read(&priv->wmi->m_rmw_cnt))
509 ath9k_reg_rmw_buffer(hw_priv, reg_offset, set, clr);
510 else
511 ath9k_reg_rmw_single(hw_priv, reg_offset, set, clr);
512
513 return 0;
514}
515
516static void ath_usb_read_cachesize(struct ath_common *common, int *csz)
517{
518 *csz = L1_CACHE_BYTES >> 2;
519}
520
521static bool ath_usb_eeprom_read(struct ath_common *common, u32 off, u16 *data)
522{
523 struct ath_hw *ah = (struct ath_hw *) common->ah;
524
525 (void)REG_READ(ah, AR5416_EEPROM_OFFSET + (off << AR5416_EEPROM_S));
526
527 if (!ath9k_hw_wait(ah,
528 AR_EEPROM_STATUS_DATA,
529 AR_EEPROM_STATUS_DATA_BUSY |
530 AR_EEPROM_STATUS_DATA_PROT_ACCESS, 0,
531 AH_WAIT_TIMEOUT))
532 return false;
533
534 *data = MS(REG_READ(ah, AR_EEPROM_STATUS_DATA),
535 AR_EEPROM_STATUS_DATA_VAL);
536
537 return true;
538}
539
540static const struct ath_bus_ops ath9k_usb_bus_ops = {
541 .ath_bus_type = ATH_USB,
542 .read_cachesize = ath_usb_read_cachesize,
543 .eeprom_read = ath_usb_eeprom_read,
544};
545
546static int ath9k_init_queues(struct ath9k_htc_priv *priv)
547{
548 struct ath_common *common = ath9k_hw_common(priv->ah);
549 int i;
550
551 for (i = 0; i < ARRAY_SIZE(priv->hwq_map); i++)
552 priv->hwq_map[i] = -1;
553
554 priv->beacon.beaconq = ath9k_hw_beaconq_setup(priv->ah);
555 if (priv->beacon.beaconq == -1) {
556 ath_err(common, "Unable to setup BEACON xmit queue\n");
557 goto err;
558 }
559
560 priv->cabq = ath9k_htc_cabq_setup(priv);
561 if (priv->cabq == -1) {
562 ath_err(common, "Unable to setup CAB xmit queue\n");
563 goto err;
564 }
565
566 if (!ath9k_htc_txq_setup(priv, IEEE80211_AC_BE)) {
567 ath_err(common, "Unable to setup xmit queue for BE traffic\n");
568 goto err;
569 }
570
571 if (!ath9k_htc_txq_setup(priv, IEEE80211_AC_BK)) {
572 ath_err(common, "Unable to setup xmit queue for BK traffic\n");
573 goto err;
574 }
575 if (!ath9k_htc_txq_setup(priv, IEEE80211_AC_VI)) {
576 ath_err(common, "Unable to setup xmit queue for VI traffic\n");
577 goto err;
578 }
579 if (!ath9k_htc_txq_setup(priv, IEEE80211_AC_VO)) {
580 ath_err(common, "Unable to setup xmit queue for VO traffic\n");
581 goto err;
582 }
583
584 return 0;
585
586err:
587 return -EINVAL;
588}
589
590static void ath9k_init_misc(struct ath9k_htc_priv *priv)
591{
592 struct ath_common *common = ath9k_hw_common(priv->ah);
593
594 eth_broadcast_addr(common->bssidmask);
595
596 common->last_rssi = ATH_RSSI_DUMMY_MARKER;
597 priv->ah->opmode = NL80211_IFTYPE_STATION;
598
599 priv->spec_priv.ah = priv->ah;
600 priv->spec_priv.spec_config.enabled = 0;
601 priv->spec_priv.spec_config.short_repeat = true;
602 priv->spec_priv.spec_config.count = 8;
603 priv->spec_priv.spec_config.endless = false;
604 priv->spec_priv.spec_config.period = 0x12;
605 priv->spec_priv.spec_config.fft_period = 0x02;
606}
607
608static int ath9k_init_priv(struct ath9k_htc_priv *priv,
609 u16 devid, char *product,
610 u32 drv_info)
611{
612 struct ath_hw *ah = NULL;
613 struct ath_common *common;
614 int i, ret = 0, csz = 0;
615
616 ah = kzalloc(sizeof(struct ath_hw), GFP_KERNEL);
617 if (!ah)
618 return -ENOMEM;
619
620 ah->dev = priv->dev;
621 ah->hw = priv->hw;
622 ah->hw_version.devid = devid;
623 ah->hw_version.usbdev = drv_info;
624 ah->ah_flags |= AH_USE_EEPROM;
625 ah->reg_ops.read = ath9k_regread;
626 ah->reg_ops.multi_read = ath9k_multi_regread;
627 ah->reg_ops.write = ath9k_regwrite;
628 ah->reg_ops.enable_write_buffer = ath9k_enable_regwrite_buffer;
629 ah->reg_ops.write_flush = ath9k_regwrite_flush;
630 ah->reg_ops.enable_rmw_buffer = ath9k_enable_rmw_buffer;
631 ah->reg_ops.rmw_flush = ath9k_reg_rmw_flush;
632 ah->reg_ops.rmw = ath9k_reg_rmw;
633 priv->ah = ah;
634
635 common = ath9k_hw_common(ah);
636 common->ops = &ah->reg_ops;
637 common->ps_ops = &ath9k_htc_ps_ops;
638 common->bus_ops = &ath9k_usb_bus_ops;
639 common->ah = ah;
640 common->hw = priv->hw;
641 common->priv = priv;
642 common->debug_mask = ath9k_debug;
643 common->btcoex_enabled = ath9k_htc_btcoex_enable == 1;
644 set_bit(ATH_OP_INVALID, &common->op_flags);
645
646 spin_lock_init(&priv->beacon_lock);
647 spin_lock_init(&priv->tx.tx_lock);
648 mutex_init(&priv->mutex);
649 mutex_init(&priv->htc_pm_lock);
650 tasklet_init(&priv->rx_tasklet, ath9k_rx_tasklet,
651 (unsigned long)priv);
652 tasklet_init(&priv->tx_failed_tasklet, ath9k_tx_failed_tasklet,
653 (unsigned long)priv);
654 INIT_DELAYED_WORK(&priv->ani_work, ath9k_htc_ani_work);
655 INIT_WORK(&priv->ps_work, ath9k_ps_work);
656 INIT_WORK(&priv->fatal_work, ath9k_fatal_work);
657 timer_setup(&priv->tx.cleanup_timer, ath9k_htc_tx_cleanup_timer, 0);
658
659
660
661
662
663 ath_read_cachesize(common, &csz);
664 common->cachelsz = csz << 2;
665
666 ret = ath9k_hw_init(ah);
667 if (ret) {
668 ath_err(common,
669 "Unable to initialize hardware; initialization status: %d\n",
670 ret);
671 goto err_hw;
672 }
673
674 ret = ath9k_init_queues(priv);
675 if (ret)
676 goto err_queues;
677
678 for (i = 0; i < ATH9K_HTC_MAX_BCN_VIF; i++)
679 priv->beacon.bslot[i] = NULL;
680 priv->beacon.slottime = 9;
681
682 ath9k_cmn_init_channels_rates(common);
683 ath9k_cmn_init_crypto(ah);
684 ath9k_init_misc(priv);
685 ath9k_htc_init_btcoex(priv, product);
686
687 return 0;
688
689err_queues:
690 ath9k_hw_deinit(ah);
691err_hw:
692
693 kfree(ah);
694 priv->ah = NULL;
695
696 return ret;
697}
698
699static const struct ieee80211_iface_limit if_limits[] = {
700 { .max = 2, .types = BIT(NL80211_IFTYPE_STATION) |
701 BIT(NL80211_IFTYPE_P2P_CLIENT) },
702 { .max = 2, .types = BIT(NL80211_IFTYPE_AP) |
703#ifdef CONFIG_MAC80211_MESH
704 BIT(NL80211_IFTYPE_MESH_POINT) |
705#endif
706 BIT(NL80211_IFTYPE_P2P_GO) },
707};
708
709static const struct ieee80211_iface_combination if_comb = {
710 .limits = if_limits,
711 .n_limits = ARRAY_SIZE(if_limits),
712 .max_interfaces = 2,
713 .num_different_channels = 1,
714};
715
716static void ath9k_set_hw_capab(struct ath9k_htc_priv *priv,
717 struct ieee80211_hw *hw)
718{
719 struct ath_hw *ah = priv->ah;
720 struct ath_common *common = ath9k_hw_common(priv->ah);
721 struct base_eep_header *pBase;
722
723 ieee80211_hw_set(hw, HOST_BROADCAST_PS_BUFFERING);
724 ieee80211_hw_set(hw, MFP_CAPABLE);
725 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
726 ieee80211_hw_set(hw, PS_NULLFUNC_STACK);
727 ieee80211_hw_set(hw, RX_INCLUDES_FCS);
728 ieee80211_hw_set(hw, HAS_RATE_CONTROL);
729 ieee80211_hw_set(hw, SPECTRUM_MGMT);
730 ieee80211_hw_set(hw, SIGNAL_DBM);
731 ieee80211_hw_set(hw, AMPDU_AGGREGATION);
732 ieee80211_hw_set(hw, DOESNT_SUPPORT_QOS_NDP);
733
734 if (ath9k_ps_enable)
735 ieee80211_hw_set(hw, SUPPORTS_PS);
736
737 hw->wiphy->interface_modes =
738 BIT(NL80211_IFTYPE_STATION) |
739 BIT(NL80211_IFTYPE_ADHOC) |
740 BIT(NL80211_IFTYPE_AP) |
741 BIT(NL80211_IFTYPE_P2P_GO) |
742 BIT(NL80211_IFTYPE_P2P_CLIENT) |
743 BIT(NL80211_IFTYPE_MESH_POINT) |
744 BIT(NL80211_IFTYPE_OCB);
745
746 hw->wiphy->iface_combinations = &if_comb;
747 hw->wiphy->n_iface_combinations = 1;
748
749 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
750
751 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN |
752 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
753 WIPHY_FLAG_HAS_CHANNEL_SWITCH;
754
755 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;
756
757 hw->queues = 4;
758 hw->max_listen_interval = 1;
759
760 hw->vif_data_size = sizeof(struct ath9k_htc_vif);
761 hw->sta_data_size = sizeof(struct ath9k_htc_sta);
762
763
764 hw->extra_tx_headroom = sizeof(struct tx_frame_hdr) +
765 sizeof(struct htc_frame_hdr) + 4;
766
767 if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_2GHZ)
768 hw->wiphy->bands[NL80211_BAND_2GHZ] =
769 &common->sbands[NL80211_BAND_2GHZ];
770 if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_5GHZ)
771 hw->wiphy->bands[NL80211_BAND_5GHZ] =
772 &common->sbands[NL80211_BAND_5GHZ];
773
774 ath9k_cmn_reload_chainmask(ah);
775
776 pBase = ath9k_htc_get_eeprom_base(priv);
777 if (pBase) {
778 hw->wiphy->available_antennas_rx = pBase->rxMask;
779 hw->wiphy->available_antennas_tx = pBase->txMask;
780 }
781
782 SET_IEEE80211_PERM_ADDR(hw, common->macaddr);
783
784 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_CQM_RSSI_LIST);
785}
786
787static int ath9k_init_firmware_version(struct ath9k_htc_priv *priv)
788{
789 struct ieee80211_hw *hw = priv->hw;
790 struct wmi_fw_version cmd_rsp;
791 int ret;
792
793 memset(&cmd_rsp, 0, sizeof(cmd_rsp));
794
795 WMI_CMD(WMI_GET_FW_VERSION);
796 if (ret)
797 return -EINVAL;
798
799 priv->fw_version_major = be16_to_cpu(cmd_rsp.major);
800 priv->fw_version_minor = be16_to_cpu(cmd_rsp.minor);
801
802 snprintf(hw->wiphy->fw_version, sizeof(hw->wiphy->fw_version), "%d.%d",
803 priv->fw_version_major,
804 priv->fw_version_minor);
805
806 dev_info(priv->dev, "ath9k_htc: FW Version: %d.%d\n",
807 priv->fw_version_major,
808 priv->fw_version_minor);
809
810
811
812
813
814 if (priv->fw_version_major != MAJOR_VERSION_REQ ||
815 priv->fw_version_minor < MINOR_VERSION_REQ) {
816 dev_err(priv->dev, "ath9k_htc: Please upgrade to FW version %d.%d\n",
817 MAJOR_VERSION_REQ, MINOR_VERSION_REQ);
818 return -EINVAL;
819 }
820
821 if (priv->fw_version_major == 1 && priv->fw_version_minor < 4)
822 set_bit(HTC_FWFLAG_NO_RMW, &priv->fw_flags);
823
824 dev_info(priv->dev, "FW RMW support: %s\n",
825 test_bit(HTC_FWFLAG_NO_RMW, &priv->fw_flags) ? "Off" : "On");
826
827 return 0;
828}
829
830static int ath9k_init_device(struct ath9k_htc_priv *priv,
831 u16 devid, char *product, u32 drv_info)
832{
833 struct ieee80211_hw *hw = priv->hw;
834 struct ath_common *common;
835 struct ath_hw *ah;
836 int error = 0;
837 struct ath_regulatory *reg;
838 char hw_name[64];
839
840
841 error = ath9k_init_priv(priv, devid, product, drv_info);
842 if (error != 0)
843 goto err_init;
844
845 ah = priv->ah;
846 common = ath9k_hw_common(ah);
847 ath9k_set_hw_capab(priv, hw);
848
849 error = ath9k_init_firmware_version(priv);
850 if (error != 0)
851 goto err_fw;
852
853
854 error = ath_regd_init(&common->regulatory, priv->hw->wiphy,
855 ath9k_reg_notifier);
856 if (error)
857 goto err_regd;
858
859 reg = &common->regulatory;
860
861
862 error = ath9k_tx_init(priv);
863 if (error != 0)
864 goto err_tx;
865
866
867 error = ath9k_rx_init(priv);
868 if (error != 0)
869 goto err_rx;
870
871 ath9k_hw_disable(priv->ah);
872#ifdef CONFIG_MAC80211_LEDS
873
874 priv->led_cdev.default_trigger = ieee80211_create_tpt_led_trigger(priv->hw,
875 IEEE80211_TPT_LEDTRIG_FL_RADIO, ath9k_htc_tpt_blink,
876 ARRAY_SIZE(ath9k_htc_tpt_blink));
877#endif
878
879
880 error = ieee80211_register_hw(hw);
881 if (error)
882 goto err_register;
883
884
885 if (!ath_is_world_regd(reg)) {
886 error = regulatory_hint(hw->wiphy, reg->alpha2);
887 if (error)
888 goto err_world;
889 }
890
891 error = ath9k_htc_init_debug(priv->ah);
892 if (error) {
893 ath_err(common, "Unable to create debugfs files\n");
894 goto err_world;
895 }
896
897 ath_dbg(common, CONFIG,
898 "WMI:%d, BCN:%d, CAB:%d, UAPSD:%d, MGMT:%d, BE:%d, BK:%d, VI:%d, VO:%d\n",
899 priv->wmi_cmd_ep,
900 priv->beacon_ep,
901 priv->cab_ep,
902 priv->uapsd_ep,
903 priv->mgmt_ep,
904 priv->data_be_ep,
905 priv->data_bk_ep,
906 priv->data_vi_ep,
907 priv->data_vo_ep);
908
909 ath9k_hw_name(priv->ah, hw_name, sizeof(hw_name));
910 wiphy_info(hw->wiphy, "%s\n", hw_name);
911
912 ath9k_init_leds(priv);
913 ath9k_start_rfkill_poll(priv);
914
915 return 0;
916
917err_world:
918 ieee80211_unregister_hw(hw);
919err_register:
920 ath9k_rx_cleanup(priv);
921err_rx:
922 ath9k_tx_cleanup(priv);
923err_tx:
924
925err_regd:
926
927err_fw:
928 ath9k_deinit_priv(priv);
929err_init:
930 return error;
931}
932
933int ath9k_htc_probe_device(struct htc_target *htc_handle, struct device *dev,
934 u16 devid, char *product, u32 drv_info)
935{
936 struct ieee80211_hw *hw;
937 struct ath9k_htc_priv *priv;
938 int ret;
939
940 hw = ieee80211_alloc_hw(sizeof(struct ath9k_htc_priv), &ath9k_htc_ops);
941 if (!hw)
942 return -ENOMEM;
943
944 priv = hw->priv;
945 priv->hw = hw;
946 priv->htc = htc_handle;
947 priv->dev = dev;
948 htc_handle->drv_priv = priv;
949 SET_IEEE80211_DEV(hw, priv->dev);
950
951 ret = ath9k_htc_wait_for_target(priv);
952 if (ret)
953 goto err_free;
954
955 priv->wmi = ath9k_init_wmi(priv);
956 if (!priv->wmi) {
957 ret = -EINVAL;
958 goto err_free;
959 }
960
961 ret = ath9k_init_htc_services(priv, devid, drv_info);
962 if (ret)
963 goto err_init;
964
965 ret = ath9k_init_device(priv, devid, product, drv_info);
966 if (ret)
967 goto err_init;
968
969 return 0;
970
971err_init:
972 ath9k_deinit_wmi(priv);
973err_free:
974 ieee80211_free_hw(hw);
975 return ret;
976}
977
978void ath9k_htc_disconnect_device(struct htc_target *htc_handle, bool hotunplug)
979{
980 if (htc_handle->drv_priv) {
981
982
983 if (hotunplug)
984 htc_handle->drv_priv->ah->ah_flags |= AH_UNPLUGGED;
985
986 ath9k_deinit_device(htc_handle->drv_priv);
987 ath9k_deinit_wmi(htc_handle->drv_priv);
988 ieee80211_free_hw(htc_handle->drv_priv->hw);
989 }
990}
991
992#ifdef CONFIG_PM
993
994void ath9k_htc_suspend(struct htc_target *htc_handle)
995{
996 ath9k_htc_setpower(htc_handle->drv_priv, ATH9K_PM_FULL_SLEEP);
997}
998
999int ath9k_htc_resume(struct htc_target *htc_handle)
1000{
1001 struct ath9k_htc_priv *priv = htc_handle->drv_priv;
1002 int ret;
1003
1004 ret = ath9k_htc_wait_for_target(priv);
1005 if (ret)
1006 return ret;
1007
1008 ret = ath9k_init_htc_services(priv, priv->ah->hw_version.devid,
1009 priv->ah->hw_version.usbdev);
1010 ath9k_configure_leds(priv);
1011
1012 return ret;
1013}
1014#endif
1015
1016static int __init ath9k_htc_init(void)
1017{
1018 if (ath9k_hif_usb_init() < 0) {
1019 pr_err("No USB devices found, driver not installed\n");
1020 return -ENODEV;
1021 }
1022
1023 return 0;
1024}
1025module_init(ath9k_htc_init);
1026
1027static void __exit ath9k_htc_exit(void)
1028{
1029 ath9k_hif_usb_exit();
1030 pr_info("Driver unloaded\n");
1031}
1032module_exit(ath9k_htc_exit);
1033
