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16
17#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
18
19#include <linux/module.h>
20#include <linux/firmware.h>
21#include <linux/platform_device.h>
22#include <linux/of_address.h>
23#include <linux/of_device.h>
24#include <linux/of_irq.h>
25#include <linux/rpmsg.h>
26#include <linux/soc/qcom/smem_state.h>
27#include <linux/soc/qcom/wcnss_ctrl.h>
28#include "wcn36xx.h"
29
30unsigned int wcn36xx_dbg_mask;
31module_param_named(debug_mask, wcn36xx_dbg_mask, uint, 0644);
32MODULE_PARM_DESC(debug_mask, "Debugging mask");
33
34#define CHAN2G(_freq, _idx) { \
35 .band = NL80211_BAND_2GHZ, \
36 .center_freq = (_freq), \
37 .hw_value = (_idx), \
38 .max_power = 25, \
39}
40
41#define CHAN5G(_freq, _idx) { \
42 .band = NL80211_BAND_5GHZ, \
43 .center_freq = (_freq), \
44 .hw_value = (_idx), \
45 .max_power = 25, \
46}
47
48
49
50static struct ieee80211_channel wcn_2ghz_channels[] = {
51 CHAN2G(2412, 1),
52 CHAN2G(2417, 2),
53 CHAN2G(2422, 3),
54 CHAN2G(2427, 4),
55 CHAN2G(2432, 5),
56 CHAN2G(2437, 6),
57 CHAN2G(2442, 7),
58 CHAN2G(2447, 8),
59 CHAN2G(2452, 9),
60 CHAN2G(2457, 10),
61 CHAN2G(2462, 11),
62 CHAN2G(2467, 12),
63 CHAN2G(2472, 13),
64 CHAN2G(2484, 14)
65
66};
67
68static struct ieee80211_channel wcn_5ghz_channels[] = {
69 CHAN5G(5180, 36),
70 CHAN5G(5200, 40),
71 CHAN5G(5220, 44),
72 CHAN5G(5240, 48),
73 CHAN5G(5260, 52),
74 CHAN5G(5280, 56),
75 CHAN5G(5300, 60),
76 CHAN5G(5320, 64),
77 CHAN5G(5500, 100),
78 CHAN5G(5520, 104),
79 CHAN5G(5540, 108),
80 CHAN5G(5560, 112),
81 CHAN5G(5580, 116),
82 CHAN5G(5600, 120),
83 CHAN5G(5620, 124),
84 CHAN5G(5640, 128),
85 CHAN5G(5660, 132),
86 CHAN5G(5700, 140),
87 CHAN5G(5745, 149),
88 CHAN5G(5765, 153),
89 CHAN5G(5785, 157),
90 CHAN5G(5805, 161),
91 CHAN5G(5825, 165)
92};
93
94#define RATE(_bitrate, _hw_rate, _flags) { \
95 .bitrate = (_bitrate), \
96 .flags = (_flags), \
97 .hw_value = (_hw_rate), \
98 .hw_value_short = (_hw_rate) \
99}
100
101static struct ieee80211_rate wcn_2ghz_rates[] = {
102 RATE(10, HW_RATE_INDEX_1MBPS, 0),
103 RATE(20, HW_RATE_INDEX_2MBPS, IEEE80211_RATE_SHORT_PREAMBLE),
104 RATE(55, HW_RATE_INDEX_5_5MBPS, IEEE80211_RATE_SHORT_PREAMBLE),
105 RATE(110, HW_RATE_INDEX_11MBPS, IEEE80211_RATE_SHORT_PREAMBLE),
106 RATE(60, HW_RATE_INDEX_6MBPS, 0),
107 RATE(90, HW_RATE_INDEX_9MBPS, 0),
108 RATE(120, HW_RATE_INDEX_12MBPS, 0),
109 RATE(180, HW_RATE_INDEX_18MBPS, 0),
110 RATE(240, HW_RATE_INDEX_24MBPS, 0),
111 RATE(360, HW_RATE_INDEX_36MBPS, 0),
112 RATE(480, HW_RATE_INDEX_48MBPS, 0),
113 RATE(540, HW_RATE_INDEX_54MBPS, 0)
114};
115
116static struct ieee80211_rate wcn_5ghz_rates[] = {
117 RATE(60, HW_RATE_INDEX_6MBPS, 0),
118 RATE(90, HW_RATE_INDEX_9MBPS, 0),
119 RATE(120, HW_RATE_INDEX_12MBPS, 0),
120 RATE(180, HW_RATE_INDEX_18MBPS, 0),
121 RATE(240, HW_RATE_INDEX_24MBPS, 0),
122 RATE(360, HW_RATE_INDEX_36MBPS, 0),
123 RATE(480, HW_RATE_INDEX_48MBPS, 0),
124 RATE(540, HW_RATE_INDEX_54MBPS, 0)
125};
126
127static struct ieee80211_supported_band wcn_band_2ghz = {
128 .channels = wcn_2ghz_channels,
129 .n_channels = ARRAY_SIZE(wcn_2ghz_channels),
130 .bitrates = wcn_2ghz_rates,
131 .n_bitrates = ARRAY_SIZE(wcn_2ghz_rates),
132 .ht_cap = {
133 .cap = IEEE80211_HT_CAP_GRN_FLD |
134 IEEE80211_HT_CAP_SGI_20 |
135 IEEE80211_HT_CAP_DSSSCCK40 |
136 IEEE80211_HT_CAP_LSIG_TXOP_PROT,
137 .ht_supported = true,
138 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K,
139 .ampdu_density = IEEE80211_HT_MPDU_DENSITY_16,
140 .mcs = {
141 .rx_mask = { 0xff, 0, 0, 0, 0, 0, 0, 0, 0, 0, },
142 .rx_highest = cpu_to_le16(72),
143 .tx_params = IEEE80211_HT_MCS_TX_DEFINED,
144 }
145 }
146};
147
148static struct ieee80211_supported_band wcn_band_5ghz = {
149 .channels = wcn_5ghz_channels,
150 .n_channels = ARRAY_SIZE(wcn_5ghz_channels),
151 .bitrates = wcn_5ghz_rates,
152 .n_bitrates = ARRAY_SIZE(wcn_5ghz_rates),
153 .ht_cap = {
154 .cap = IEEE80211_HT_CAP_GRN_FLD |
155 IEEE80211_HT_CAP_SGI_20 |
156 IEEE80211_HT_CAP_DSSSCCK40 |
157 IEEE80211_HT_CAP_LSIG_TXOP_PROT |
158 IEEE80211_HT_CAP_SGI_40 |
159 IEEE80211_HT_CAP_SUP_WIDTH_20_40,
160 .ht_supported = true,
161 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K,
162 .ampdu_density = IEEE80211_HT_MPDU_DENSITY_16,
163 .mcs = {
164 .rx_mask = { 0xff, 0, 0, 0, 0, 0, 0, 0, 0, 0, },
165 .rx_highest = cpu_to_le16(72),
166 .tx_params = IEEE80211_HT_MCS_TX_DEFINED,
167 }
168 }
169};
170
171#ifdef CONFIG_PM
172
173static const struct wiphy_wowlan_support wowlan_support = {
174 .flags = WIPHY_WOWLAN_ANY
175};
176
177#endif
178
179static inline u8 get_sta_index(struct ieee80211_vif *vif,
180 struct wcn36xx_sta *sta_priv)
181{
182 return NL80211_IFTYPE_STATION == vif->type ?
183 sta_priv->bss_sta_index :
184 sta_priv->sta_index;
185}
186
187static const char * const wcn36xx_caps_names[] = {
188 "MCC",
189 "P2P",
190 "DOT11AC",
191 "SLM_SESSIONIZATION",
192 "DOT11AC_OPMODE",
193 "SAP32STA",
194 "TDLS",
195 "P2P_GO_NOA_DECOUPLE_INIT_SCAN",
196 "WLANACTIVE_OFFLOAD",
197 "BEACON_OFFLOAD",
198 "SCAN_OFFLOAD",
199 "ROAM_OFFLOAD",
200 "BCN_MISS_OFFLOAD",
201 "STA_POWERSAVE",
202 "STA_ADVANCED_PWRSAVE",
203 "AP_UAPSD",
204 "AP_DFS",
205 "BLOCKACK",
206 "PHY_ERR",
207 "BCN_FILTER",
208 "RTT",
209 "RATECTRL",
210 "WOW",
211 "WLAN_ROAM_SCAN_OFFLOAD",
212 "SPECULATIVE_PS_POLL",
213 "SCAN_SCH",
214 "IBSS_HEARTBEAT_OFFLOAD",
215 "WLAN_SCAN_OFFLOAD",
216 "WLAN_PERIODIC_TX_PTRN",
217 "ADVANCE_TDLS",
218 "BATCH_SCAN",
219 "FW_IN_TX_PATH",
220 "EXTENDED_NSOFFLOAD_SLOT",
221 "CH_SWITCH_V1",
222 "HT40_OBSS_SCAN",
223 "UPDATE_CHANNEL_LIST",
224 "WLAN_MCADDR_FLT",
225 "WLAN_CH144",
226 "NAN",
227 "TDLS_SCAN_COEXISTENCE",
228 "LINK_LAYER_STATS_MEAS",
229 "MU_MIMO",
230 "EXTENDED_SCAN",
231 "DYNAMIC_WMM_PS",
232 "MAC_SPOOFED_SCAN",
233 "BMU_ERROR_GENERIC_RECOVERY",
234 "DISA",
235 "FW_STATS",
236 "WPS_PRBRSP_TMPL",
237 "BCN_IE_FLT_DELTA",
238 "TDLS_OFF_CHANNEL",
239 "RTT3",
240 "MGMT_FRAME_LOGGING",
241 "ENHANCED_TXBD_COMPLETION",
242 "LOGGING_ENHANCEMENT",
243 "EXT_SCAN_ENHANCED",
244 "MEMORY_DUMP_SUPPORTED",
245 "PER_PKT_STATS_SUPPORTED",
246 "EXT_LL_STAT",
247 "WIFI_CONFIG",
248 "ANTENNA_DIVERSITY_SELECTION",
249};
250
251static const char *wcn36xx_get_cap_name(enum place_holder_in_cap_bitmap x)
252{
253 if (x >= ARRAY_SIZE(wcn36xx_caps_names))
254 return "UNKNOWN";
255 return wcn36xx_caps_names[x];
256}
257
258static void wcn36xx_feat_caps_info(struct wcn36xx *wcn)
259{
260 int i;
261
262 for (i = 0; i < MAX_FEATURE_SUPPORTED; i++) {
263 if (get_feat_caps(wcn->fw_feat_caps, i))
264 wcn36xx_dbg(WCN36XX_DBG_MAC, "FW Cap %s\n", wcn36xx_get_cap_name(i));
265 }
266}
267
268static int wcn36xx_start(struct ieee80211_hw *hw)
269{
270 struct wcn36xx *wcn = hw->priv;
271 int ret;
272
273 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac start\n");
274
275
276 ret = wcn36xx_smd_open(wcn);
277 if (ret) {
278 wcn36xx_err("Failed to open smd channel: %d\n", ret);
279 goto out_err;
280 }
281
282
283 ret = wcn36xx_dxe_allocate_mem_pools(wcn);
284 if (ret) {
285 wcn36xx_err("Failed to alloc DXE mempool: %d\n", ret);
286 goto out_smd_close;
287 }
288
289 ret = wcn36xx_dxe_alloc_ctl_blks(wcn);
290 if (ret) {
291 wcn36xx_err("Failed to alloc DXE ctl blocks: %d\n", ret);
292 goto out_free_dxe_pool;
293 }
294
295 wcn->hal_buf = kmalloc(WCN36XX_HAL_BUF_SIZE, GFP_KERNEL);
296 if (!wcn->hal_buf) {
297 wcn36xx_err("Failed to allocate smd buf\n");
298 ret = -ENOMEM;
299 goto out_free_dxe_ctl;
300 }
301
302 ret = wcn36xx_smd_load_nv(wcn);
303 if (ret) {
304 wcn36xx_err("Failed to push NV to chip\n");
305 goto out_free_smd_buf;
306 }
307
308 ret = wcn36xx_smd_start(wcn);
309 if (ret) {
310 wcn36xx_err("Failed to start chip\n");
311 goto out_free_smd_buf;
312 }
313
314 if (!wcn36xx_is_fw_version(wcn, 1, 2, 2, 24)) {
315 ret = wcn36xx_smd_feature_caps_exchange(wcn);
316 if (ret)
317 wcn36xx_warn("Exchange feature caps failed\n");
318 else
319 wcn36xx_feat_caps_info(wcn);
320 }
321
322
323 ret = wcn36xx_dxe_init(wcn);
324 if (ret) {
325 wcn36xx_err("DXE init failed\n");
326 goto out_smd_stop;
327 }
328
329 wcn36xx_debugfs_init(wcn);
330
331 INIT_LIST_HEAD(&wcn->vif_list);
332 spin_lock_init(&wcn->dxe_lock);
333
334 return 0;
335
336out_smd_stop:
337 wcn36xx_smd_stop(wcn);
338out_free_smd_buf:
339 kfree(wcn->hal_buf);
340out_free_dxe_ctl:
341 wcn36xx_dxe_free_ctl_blks(wcn);
342out_free_dxe_pool:
343 wcn36xx_dxe_free_mem_pools(wcn);
344out_smd_close:
345 wcn36xx_smd_close(wcn);
346out_err:
347 return ret;
348}
349
350static void wcn36xx_stop(struct ieee80211_hw *hw)
351{
352 struct wcn36xx *wcn = hw->priv;
353
354 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac stop\n");
355
356 wcn36xx_debugfs_exit(wcn);
357 wcn36xx_smd_stop(wcn);
358 wcn36xx_dxe_deinit(wcn);
359 wcn36xx_smd_close(wcn);
360
361 wcn36xx_dxe_free_mem_pools(wcn);
362 wcn36xx_dxe_free_ctl_blks(wcn);
363
364 kfree(wcn->hal_buf);
365}
366
367static int wcn36xx_config(struct ieee80211_hw *hw, u32 changed)
368{
369 struct wcn36xx *wcn = hw->priv;
370 struct ieee80211_vif *vif = NULL;
371 struct wcn36xx_vif *tmp;
372
373 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac config changed 0x%08x\n", changed);
374
375 mutex_lock(&wcn->conf_mutex);
376
377 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
378 int ch = WCN36XX_HW_CHANNEL(wcn);
379 wcn36xx_dbg(WCN36XX_DBG_MAC, "wcn36xx_config channel switch=%d\n",
380 ch);
381 list_for_each_entry(tmp, &wcn->vif_list, list) {
382 vif = wcn36xx_priv_to_vif(tmp);
383 wcn36xx_smd_switch_channel(wcn, vif, ch);
384 }
385 }
386
387 if (changed & IEEE80211_CONF_CHANGE_PS) {
388 list_for_each_entry(tmp, &wcn->vif_list, list) {
389 vif = wcn36xx_priv_to_vif(tmp);
390 if (hw->conf.flags & IEEE80211_CONF_PS) {
391 if (vif->bss_conf.ps)
392 wcn36xx_pmc_enter_bmps_state(wcn, vif);
393 } else {
394 wcn36xx_pmc_exit_bmps_state(wcn, vif);
395 }
396 }
397 }
398
399 mutex_unlock(&wcn->conf_mutex);
400
401 return 0;
402}
403
404static void wcn36xx_configure_filter(struct ieee80211_hw *hw,
405 unsigned int changed,
406 unsigned int *total, u64 multicast)
407{
408 struct wcn36xx_hal_rcv_flt_mc_addr_list_type *fp;
409 struct wcn36xx *wcn = hw->priv;
410 struct wcn36xx_vif *tmp;
411 struct ieee80211_vif *vif = NULL;
412
413 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac configure filter\n");
414
415 mutex_lock(&wcn->conf_mutex);
416
417 *total &= FIF_ALLMULTI;
418
419 fp = (void *)(unsigned long)multicast;
420 list_for_each_entry(tmp, &wcn->vif_list, list) {
421 vif = wcn36xx_priv_to_vif(tmp);
422
423
424 if (*total & FIF_ALLMULTI)
425 wcn36xx_smd_set_mc_list(wcn, vif, NULL);
426 else if (NL80211_IFTYPE_STATION == vif->type && tmp->sta_assoc)
427 wcn36xx_smd_set_mc_list(wcn, vif, fp);
428 }
429
430 mutex_unlock(&wcn->conf_mutex);
431 kfree(fp);
432}
433
434static u64 wcn36xx_prepare_multicast(struct ieee80211_hw *hw,
435 struct netdev_hw_addr_list *mc_list)
436{
437 struct wcn36xx_hal_rcv_flt_mc_addr_list_type *fp;
438 struct netdev_hw_addr *ha;
439
440 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac prepare multicast list\n");
441 fp = kzalloc(sizeof(*fp), GFP_ATOMIC);
442 if (!fp) {
443 wcn36xx_err("Out of memory setting filters.\n");
444 return 0;
445 }
446
447 fp->mc_addr_count = 0;
448
449 if (netdev_hw_addr_list_count(mc_list) <=
450 WCN36XX_HAL_MAX_NUM_MULTICAST_ADDRESS) {
451 netdev_hw_addr_list_for_each(ha, mc_list) {
452 memcpy(fp->mc_addr[fp->mc_addr_count],
453 ha->addr, ETH_ALEN);
454 fp->mc_addr_count++;
455 }
456 }
457
458 return (u64)(unsigned long)fp;
459}
460
461static void wcn36xx_tx(struct ieee80211_hw *hw,
462 struct ieee80211_tx_control *control,
463 struct sk_buff *skb)
464{
465 struct wcn36xx *wcn = hw->priv;
466 struct wcn36xx_sta *sta_priv = NULL;
467
468 if (control->sta)
469 sta_priv = wcn36xx_sta_to_priv(control->sta);
470
471 if (wcn36xx_start_tx(wcn, sta_priv, skb))
472 ieee80211_free_txskb(wcn->hw, skb);
473}
474
475static int wcn36xx_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
476 struct ieee80211_vif *vif,
477 struct ieee80211_sta *sta,
478 struct ieee80211_key_conf *key_conf)
479{
480 struct wcn36xx *wcn = hw->priv;
481 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
482 struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(sta);
483 int ret = 0;
484 u8 key[WLAN_MAX_KEY_LEN];
485
486 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac80211 set key\n");
487 wcn36xx_dbg(WCN36XX_DBG_MAC, "Key: cmd=0x%x algo:0x%x, id:%d, len:%d flags 0x%x\n",
488 cmd, key_conf->cipher, key_conf->keyidx,
489 key_conf->keylen, key_conf->flags);
490 wcn36xx_dbg_dump(WCN36XX_DBG_MAC, "KEY: ",
491 key_conf->key,
492 key_conf->keylen);
493
494 mutex_lock(&wcn->conf_mutex);
495
496 switch (key_conf->cipher) {
497 case WLAN_CIPHER_SUITE_WEP40:
498 vif_priv->encrypt_type = WCN36XX_HAL_ED_WEP40;
499 break;
500 case WLAN_CIPHER_SUITE_WEP104:
501 vif_priv->encrypt_type = WCN36XX_HAL_ED_WEP40;
502 break;
503 case WLAN_CIPHER_SUITE_CCMP:
504 vif_priv->encrypt_type = WCN36XX_HAL_ED_CCMP;
505 break;
506 case WLAN_CIPHER_SUITE_TKIP:
507 vif_priv->encrypt_type = WCN36XX_HAL_ED_TKIP;
508 break;
509 default:
510 wcn36xx_err("Unsupported key type 0x%x\n",
511 key_conf->cipher);
512 ret = -EOPNOTSUPP;
513 goto out;
514 }
515
516 switch (cmd) {
517 case SET_KEY:
518 if (WCN36XX_HAL_ED_TKIP == vif_priv->encrypt_type) {
519
520
521
522
523
524
525
526 memcpy(key, key_conf->key, 16);
527 memcpy(key + 16, key_conf->key + 24, 8);
528 memcpy(key + 24, key_conf->key + 16, 8);
529 } else {
530 memcpy(key, key_conf->key, key_conf->keylen);
531 }
532
533 if (IEEE80211_KEY_FLAG_PAIRWISE & key_conf->flags) {
534 sta_priv->is_data_encrypted = true;
535
536 if (NL80211_IFTYPE_STATION == vif->type)
537 wcn36xx_smd_config_bss(wcn,
538 vif,
539 sta,
540 sta->addr,
541 true);
542
543 wcn36xx_smd_set_stakey(wcn,
544 vif_priv->encrypt_type,
545 key_conf->keyidx,
546 key_conf->keylen,
547 key,
548 get_sta_index(vif, sta_priv));
549 } else {
550 wcn36xx_smd_set_bsskey(wcn,
551 vif_priv->encrypt_type,
552 key_conf->keyidx,
553 key_conf->keylen,
554 key);
555 if ((WLAN_CIPHER_SUITE_WEP40 == key_conf->cipher) ||
556 (WLAN_CIPHER_SUITE_WEP104 == key_conf->cipher)) {
557 sta_priv->is_data_encrypted = true;
558 wcn36xx_smd_set_stakey(wcn,
559 vif_priv->encrypt_type,
560 key_conf->keyidx,
561 key_conf->keylen,
562 key,
563 get_sta_index(vif, sta_priv));
564 }
565 }
566 break;
567 case DISABLE_KEY:
568 if (!(IEEE80211_KEY_FLAG_PAIRWISE & key_conf->flags)) {
569 vif_priv->encrypt_type = WCN36XX_HAL_ED_NONE;
570 wcn36xx_smd_remove_bsskey(wcn,
571 vif_priv->encrypt_type,
572 key_conf->keyidx);
573 } else {
574 sta_priv->is_data_encrypted = false;
575
576 if (sta_priv->aid)
577 wcn36xx_smd_remove_stakey(wcn,
578 vif_priv->encrypt_type,
579 key_conf->keyidx,
580 get_sta_index(vif, sta_priv));
581 }
582 break;
583 default:
584 wcn36xx_err("Unsupported key cmd 0x%x\n", cmd);
585 ret = -EOPNOTSUPP;
586 goto out;
587 }
588
589out:
590 mutex_unlock(&wcn->conf_mutex);
591
592 return ret;
593}
594
595static void wcn36xx_hw_scan_worker(struct work_struct *work)
596{
597 struct wcn36xx *wcn = container_of(work, struct wcn36xx, scan_work);
598 struct cfg80211_scan_request *req = wcn->scan_req;
599 u8 channels[WCN36XX_HAL_PNO_MAX_NETW_CHANNELS_EX];
600 struct cfg80211_scan_info scan_info = {};
601 bool aborted = false;
602 int i;
603
604 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac80211 scan %d channels worker\n", req->n_channels);
605
606 for (i = 0; i < req->n_channels; i++)
607 channels[i] = req->channels[i]->hw_value;
608
609 wcn36xx_smd_update_scan_params(wcn, channels, req->n_channels);
610
611 wcn36xx_smd_init_scan(wcn, HAL_SYS_MODE_SCAN);
612 for (i = 0; i < req->n_channels; i++) {
613 mutex_lock(&wcn->scan_lock);
614 aborted = wcn->scan_aborted;
615 mutex_unlock(&wcn->scan_lock);
616
617 if (aborted)
618 break;
619
620 wcn->scan_freq = req->channels[i]->center_freq;
621 wcn->scan_band = req->channels[i]->band;
622
623 wcn36xx_smd_start_scan(wcn, req->channels[i]->hw_value);
624 msleep(30);
625 wcn36xx_smd_end_scan(wcn, req->channels[i]->hw_value);
626
627 wcn->scan_freq = 0;
628 }
629 wcn36xx_smd_finish_scan(wcn, HAL_SYS_MODE_SCAN);
630
631 scan_info.aborted = aborted;
632 ieee80211_scan_completed(wcn->hw, &scan_info);
633
634 mutex_lock(&wcn->scan_lock);
635 wcn->scan_req = NULL;
636 mutex_unlock(&wcn->scan_lock);
637}
638
639static int wcn36xx_hw_scan(struct ieee80211_hw *hw,
640 struct ieee80211_vif *vif,
641 struct ieee80211_scan_request *hw_req)
642{
643 struct wcn36xx *wcn = hw->priv;
644 mutex_lock(&wcn->scan_lock);
645 if (wcn->scan_req) {
646 mutex_unlock(&wcn->scan_lock);
647 return -EBUSY;
648 }
649
650 wcn->scan_aborted = false;
651 wcn->scan_req = &hw_req->req;
652
653 mutex_unlock(&wcn->scan_lock);
654
655 if (!get_feat_caps(wcn->fw_feat_caps, SCAN_OFFLOAD)) {
656
657 schedule_work(&wcn->scan_work);
658 return 0;
659 }
660
661 return wcn36xx_smd_start_hw_scan(wcn, vif, &hw_req->req);
662}
663
664static void wcn36xx_cancel_hw_scan(struct ieee80211_hw *hw,
665 struct ieee80211_vif *vif)
666{
667 struct wcn36xx *wcn = hw->priv;
668
669 mutex_lock(&wcn->scan_lock);
670 wcn->scan_aborted = true;
671 mutex_unlock(&wcn->scan_lock);
672
673
674 wcn36xx_smd_stop_hw_scan(wcn);
675
676 cancel_work_sync(&wcn->scan_work);
677}
678
679static void wcn36xx_update_allowed_rates(struct ieee80211_sta *sta,
680 enum nl80211_band band)
681{
682 int i, size;
683 u16 *rates_table;
684 struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(sta);
685 u32 rates = sta->supp_rates[band];
686
687 memset(&sta_priv->supported_rates, 0,
688 sizeof(sta_priv->supported_rates));
689 sta_priv->supported_rates.op_rate_mode = STA_11n;
690
691 size = ARRAY_SIZE(sta_priv->supported_rates.dsss_rates);
692 rates_table = sta_priv->supported_rates.dsss_rates;
693 if (band == NL80211_BAND_2GHZ) {
694 for (i = 0; i < size; i++) {
695 if (rates & 0x01) {
696 rates_table[i] = wcn_2ghz_rates[i].hw_value;
697 rates = rates >> 1;
698 }
699 }
700 }
701
702 size = ARRAY_SIZE(sta_priv->supported_rates.ofdm_rates);
703 rates_table = sta_priv->supported_rates.ofdm_rates;
704 for (i = 0; i < size; i++) {
705 if (rates & 0x01) {
706 rates_table[i] = wcn_5ghz_rates[i].hw_value;
707 rates = rates >> 1;
708 }
709 }
710
711 if (sta->ht_cap.ht_supported) {
712 BUILD_BUG_ON(sizeof(sta->ht_cap.mcs.rx_mask) >
713 sizeof(sta_priv->supported_rates.supported_mcs_set));
714 memcpy(sta_priv->supported_rates.supported_mcs_set,
715 sta->ht_cap.mcs.rx_mask,
716 sizeof(sta->ht_cap.mcs.rx_mask));
717 }
718}
719void wcn36xx_set_default_rates(struct wcn36xx_hal_supported_rates *rates)
720{
721 u16 ofdm_rates[WCN36XX_HAL_NUM_OFDM_RATES] = {
722 HW_RATE_INDEX_6MBPS,
723 HW_RATE_INDEX_9MBPS,
724 HW_RATE_INDEX_12MBPS,
725 HW_RATE_INDEX_18MBPS,
726 HW_RATE_INDEX_24MBPS,
727 HW_RATE_INDEX_36MBPS,
728 HW_RATE_INDEX_48MBPS,
729 HW_RATE_INDEX_54MBPS
730 };
731 u16 dsss_rates[WCN36XX_HAL_NUM_DSSS_RATES] = {
732 HW_RATE_INDEX_1MBPS,
733 HW_RATE_INDEX_2MBPS,
734 HW_RATE_INDEX_5_5MBPS,
735 HW_RATE_INDEX_11MBPS
736 };
737
738 rates->op_rate_mode = STA_11n;
739 memcpy(rates->dsss_rates, dsss_rates,
740 sizeof(*dsss_rates) * WCN36XX_HAL_NUM_DSSS_RATES);
741 memcpy(rates->ofdm_rates, ofdm_rates,
742 sizeof(*ofdm_rates) * WCN36XX_HAL_NUM_OFDM_RATES);
743 rates->supported_mcs_set[0] = 0xFF;
744}
745static void wcn36xx_bss_info_changed(struct ieee80211_hw *hw,
746 struct ieee80211_vif *vif,
747 struct ieee80211_bss_conf *bss_conf,
748 u32 changed)
749{
750 struct wcn36xx *wcn = hw->priv;
751 struct sk_buff *skb = NULL;
752 u16 tim_off, tim_len;
753 enum wcn36xx_hal_link_state link_state;
754 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
755
756 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss info changed vif %p changed 0x%08x\n",
757 vif, changed);
758
759 mutex_lock(&wcn->conf_mutex);
760
761 if (changed & BSS_CHANGED_BEACON_INFO) {
762 wcn36xx_dbg(WCN36XX_DBG_MAC,
763 "mac bss changed dtim period %d\n",
764 bss_conf->dtim_period);
765
766 vif_priv->dtim_period = bss_conf->dtim_period;
767 }
768
769 if (changed & BSS_CHANGED_BSSID) {
770 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss changed_bssid %pM\n",
771 bss_conf->bssid);
772
773 if (!is_zero_ether_addr(bss_conf->bssid)) {
774 vif_priv->is_joining = true;
775 vif_priv->bss_index = WCN36XX_HAL_BSS_INVALID_IDX;
776 wcn36xx_smd_join(wcn, bss_conf->bssid,
777 vif->addr, WCN36XX_HW_CHANNEL(wcn));
778 wcn36xx_smd_config_bss(wcn, vif, NULL,
779 bss_conf->bssid, false);
780 } else {
781 vif_priv->is_joining = false;
782 wcn36xx_smd_delete_bss(wcn, vif);
783 vif_priv->encrypt_type = WCN36XX_HAL_ED_NONE;
784 }
785 }
786
787 if (changed & BSS_CHANGED_SSID) {
788 wcn36xx_dbg(WCN36XX_DBG_MAC,
789 "mac bss changed ssid\n");
790 wcn36xx_dbg_dump(WCN36XX_DBG_MAC, "ssid ",
791 bss_conf->ssid, bss_conf->ssid_len);
792
793 vif_priv->ssid.length = bss_conf->ssid_len;
794 memcpy(&vif_priv->ssid.ssid,
795 bss_conf->ssid,
796 bss_conf->ssid_len);
797 }
798
799 if (changed & BSS_CHANGED_ASSOC) {
800 vif_priv->is_joining = false;
801 if (bss_conf->assoc) {
802 struct ieee80211_sta *sta;
803 struct wcn36xx_sta *sta_priv;
804
805 wcn36xx_dbg(WCN36XX_DBG_MAC,
806 "mac assoc bss %pM vif %pM AID=%d\n",
807 bss_conf->bssid,
808 vif->addr,
809 bss_conf->aid);
810
811 vif_priv->sta_assoc = true;
812
813
814
815
816
817
818
819 sta = ieee80211_find_sta(vif, bss_conf->bssid);
820 if (!sta) {
821 wcn36xx_err("sta %pM is not found\n",
822 bss_conf->bssid);
823 goto out;
824 }
825 sta_priv = wcn36xx_sta_to_priv(sta);
826
827 wcn36xx_update_allowed_rates(sta, WCN36XX_BAND(wcn));
828
829 wcn36xx_smd_set_link_st(wcn, bss_conf->bssid,
830 vif->addr,
831 WCN36XX_HAL_LINK_POSTASSOC_STATE);
832 wcn36xx_smd_config_bss(wcn, vif, sta,
833 bss_conf->bssid,
834 true);
835 sta_priv->aid = bss_conf->aid;
836
837
838
839
840 wcn36xx_smd_config_sta(wcn, vif, sta);
841 } else {
842 wcn36xx_dbg(WCN36XX_DBG_MAC,
843 "disassociated bss %pM vif %pM AID=%d\n",
844 bss_conf->bssid,
845 vif->addr,
846 bss_conf->aid);
847 vif_priv->sta_assoc = false;
848 wcn36xx_smd_set_link_st(wcn,
849 bss_conf->bssid,
850 vif->addr,
851 WCN36XX_HAL_LINK_IDLE_STATE);
852 }
853 }
854
855 if (changed & BSS_CHANGED_AP_PROBE_RESP) {
856 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss changed ap probe resp\n");
857 skb = ieee80211_proberesp_get(hw, vif);
858 if (!skb) {
859 wcn36xx_err("failed to alloc probereq skb\n");
860 goto out;
861 }
862
863 wcn36xx_smd_update_proberesp_tmpl(wcn, vif, skb);
864 dev_kfree_skb(skb);
865 }
866
867 if (changed & BSS_CHANGED_BEACON_ENABLED ||
868 changed & BSS_CHANGED_BEACON) {
869 wcn36xx_dbg(WCN36XX_DBG_MAC,
870 "mac bss changed beacon enabled %d\n",
871 bss_conf->enable_beacon);
872
873 if (bss_conf->enable_beacon) {
874 vif_priv->dtim_period = bss_conf->dtim_period;
875 vif_priv->bss_index = WCN36XX_HAL_BSS_INVALID_IDX;
876 wcn36xx_smd_config_bss(wcn, vif, NULL,
877 vif->addr, false);
878 skb = ieee80211_beacon_get_tim(hw, vif, &tim_off,
879 &tim_len);
880 if (!skb) {
881 wcn36xx_err("failed to alloc beacon skb\n");
882 goto out;
883 }
884 wcn36xx_smd_send_beacon(wcn, vif, skb, tim_off, 0);
885 dev_kfree_skb(skb);
886
887 if (vif->type == NL80211_IFTYPE_ADHOC ||
888 vif->type == NL80211_IFTYPE_MESH_POINT)
889 link_state = WCN36XX_HAL_LINK_IBSS_STATE;
890 else
891 link_state = WCN36XX_HAL_LINK_AP_STATE;
892
893 wcn36xx_smd_set_link_st(wcn, vif->addr, vif->addr,
894 link_state);
895 } else {
896 wcn36xx_smd_delete_bss(wcn, vif);
897 wcn36xx_smd_set_link_st(wcn, vif->addr, vif->addr,
898 WCN36XX_HAL_LINK_IDLE_STATE);
899 }
900 }
901out:
902
903 mutex_unlock(&wcn->conf_mutex);
904
905 return;
906}
907
908
909static int wcn36xx_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
910{
911 struct wcn36xx *wcn = hw->priv;
912 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac set RTS threshold %d\n", value);
913
914 mutex_lock(&wcn->conf_mutex);
915 wcn36xx_smd_update_cfg(wcn, WCN36XX_HAL_CFG_RTS_THRESHOLD, value);
916 mutex_unlock(&wcn->conf_mutex);
917
918 return 0;
919}
920
921static void wcn36xx_remove_interface(struct ieee80211_hw *hw,
922 struct ieee80211_vif *vif)
923{
924 struct wcn36xx *wcn = hw->priv;
925 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
926 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac remove interface vif %p\n", vif);
927
928 mutex_lock(&wcn->conf_mutex);
929
930 list_del(&vif_priv->list);
931 wcn36xx_smd_delete_sta_self(wcn, vif->addr);
932
933 mutex_unlock(&wcn->conf_mutex);
934}
935
936static int wcn36xx_add_interface(struct ieee80211_hw *hw,
937 struct ieee80211_vif *vif)
938{
939 struct wcn36xx *wcn = hw->priv;
940 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
941
942 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac add interface vif %p type %d\n",
943 vif, vif->type);
944
945 if (!(NL80211_IFTYPE_STATION == vif->type ||
946 NL80211_IFTYPE_AP == vif->type ||
947 NL80211_IFTYPE_ADHOC == vif->type ||
948 NL80211_IFTYPE_MESH_POINT == vif->type)) {
949 wcn36xx_warn("Unsupported interface type requested: %d\n",
950 vif->type);
951 return -EOPNOTSUPP;
952 }
953
954 mutex_lock(&wcn->conf_mutex);
955
956 list_add(&vif_priv->list, &wcn->vif_list);
957 wcn36xx_smd_add_sta_self(wcn, vif);
958
959 mutex_unlock(&wcn->conf_mutex);
960
961 return 0;
962}
963
964static int wcn36xx_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
965 struct ieee80211_sta *sta)
966{
967 struct wcn36xx *wcn = hw->priv;
968 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
969 struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(sta);
970 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac sta add vif %p sta %pM\n",
971 vif, sta->addr);
972
973 mutex_lock(&wcn->conf_mutex);
974
975 spin_lock_init(&sta_priv->ampdu_lock);
976 sta_priv->vif = vif_priv;
977
978
979
980
981 if (NL80211_IFTYPE_STATION != vif->type) {
982 wcn36xx_update_allowed_rates(sta, WCN36XX_BAND(wcn));
983 sta_priv->aid = sta->aid;
984 wcn36xx_smd_config_sta(wcn, vif, sta);
985 }
986
987 mutex_unlock(&wcn->conf_mutex);
988
989 return 0;
990}
991
992static int wcn36xx_sta_remove(struct ieee80211_hw *hw,
993 struct ieee80211_vif *vif,
994 struct ieee80211_sta *sta)
995{
996 struct wcn36xx *wcn = hw->priv;
997 struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(sta);
998
999 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac sta remove vif %p sta %pM index %d\n",
1000 vif, sta->addr, sta_priv->sta_index);
1001
1002 mutex_lock(&wcn->conf_mutex);
1003
1004 wcn36xx_smd_delete_sta(wcn, sta_priv->sta_index);
1005 sta_priv->vif = NULL;
1006
1007 mutex_unlock(&wcn->conf_mutex);
1008
1009 return 0;
1010}
1011
1012#ifdef CONFIG_PM
1013
1014static int wcn36xx_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wow)
1015{
1016 struct wcn36xx *wcn = hw->priv;
1017
1018 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac suspend\n");
1019
1020 flush_workqueue(wcn->hal_ind_wq);
1021 wcn36xx_smd_set_power_params(wcn, true);
1022 return 0;
1023}
1024
1025static int wcn36xx_resume(struct ieee80211_hw *hw)
1026{
1027 struct wcn36xx *wcn = hw->priv;
1028
1029 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac resume\n");
1030
1031 flush_workqueue(wcn->hal_ind_wq);
1032 wcn36xx_smd_set_power_params(wcn, false);
1033 return 0;
1034}
1035
1036#endif
1037
1038static int wcn36xx_ampdu_action(struct ieee80211_hw *hw,
1039 struct ieee80211_vif *vif,
1040 struct ieee80211_ampdu_params *params)
1041{
1042 struct wcn36xx *wcn = hw->priv;
1043 struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(params->sta);
1044 struct ieee80211_sta *sta = params->sta;
1045 enum ieee80211_ampdu_mlme_action action = params->action;
1046 u16 tid = params->tid;
1047 u16 *ssn = ¶ms->ssn;
1048
1049 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac ampdu action action %d tid %d\n",
1050 action, tid);
1051
1052 mutex_lock(&wcn->conf_mutex);
1053
1054 switch (action) {
1055 case IEEE80211_AMPDU_RX_START:
1056 sta_priv->tid = tid;
1057 wcn36xx_smd_add_ba_session(wcn, sta, tid, ssn, 0,
1058 get_sta_index(vif, sta_priv));
1059 wcn36xx_smd_add_ba(wcn);
1060 wcn36xx_smd_trigger_ba(wcn, get_sta_index(vif, sta_priv));
1061 break;
1062 case IEEE80211_AMPDU_RX_STOP:
1063 wcn36xx_smd_del_ba(wcn, tid, get_sta_index(vif, sta_priv));
1064 break;
1065 case IEEE80211_AMPDU_TX_START:
1066 spin_lock_bh(&sta_priv->ampdu_lock);
1067 sta_priv->ampdu_state[tid] = WCN36XX_AMPDU_START;
1068 spin_unlock_bh(&sta_priv->ampdu_lock);
1069
1070 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1071 break;
1072 case IEEE80211_AMPDU_TX_OPERATIONAL:
1073 spin_lock_bh(&sta_priv->ampdu_lock);
1074 sta_priv->ampdu_state[tid] = WCN36XX_AMPDU_OPERATIONAL;
1075 spin_unlock_bh(&sta_priv->ampdu_lock);
1076
1077 wcn36xx_smd_add_ba_session(wcn, sta, tid, ssn, 1,
1078 get_sta_index(vif, sta_priv));
1079 break;
1080 case IEEE80211_AMPDU_TX_STOP_FLUSH:
1081 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
1082 case IEEE80211_AMPDU_TX_STOP_CONT:
1083 spin_lock_bh(&sta_priv->ampdu_lock);
1084 sta_priv->ampdu_state[tid] = WCN36XX_AMPDU_NONE;
1085 spin_unlock_bh(&sta_priv->ampdu_lock);
1086
1087 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1088 break;
1089 default:
1090 wcn36xx_err("Unknown AMPDU action\n");
1091 }
1092
1093 mutex_unlock(&wcn->conf_mutex);
1094
1095 return 0;
1096}
1097
1098static const struct ieee80211_ops wcn36xx_ops = {
1099 .start = wcn36xx_start,
1100 .stop = wcn36xx_stop,
1101 .add_interface = wcn36xx_add_interface,
1102 .remove_interface = wcn36xx_remove_interface,
1103#ifdef CONFIG_PM
1104 .suspend = wcn36xx_suspend,
1105 .resume = wcn36xx_resume,
1106#endif
1107 .config = wcn36xx_config,
1108 .prepare_multicast = wcn36xx_prepare_multicast,
1109 .configure_filter = wcn36xx_configure_filter,
1110 .tx = wcn36xx_tx,
1111 .set_key = wcn36xx_set_key,
1112 .hw_scan = wcn36xx_hw_scan,
1113 .cancel_hw_scan = wcn36xx_cancel_hw_scan,
1114 .bss_info_changed = wcn36xx_bss_info_changed,
1115 .set_rts_threshold = wcn36xx_set_rts_threshold,
1116 .sta_add = wcn36xx_sta_add,
1117 .sta_remove = wcn36xx_sta_remove,
1118 .ampdu_action = wcn36xx_ampdu_action,
1119};
1120
1121static int wcn36xx_init_ieee80211(struct wcn36xx *wcn)
1122{
1123 int ret = 0;
1124
1125 static const u32 cipher_suites[] = {
1126 WLAN_CIPHER_SUITE_WEP40,
1127 WLAN_CIPHER_SUITE_WEP104,
1128 WLAN_CIPHER_SUITE_TKIP,
1129 WLAN_CIPHER_SUITE_CCMP,
1130 };
1131
1132 ieee80211_hw_set(wcn->hw, TIMING_BEACON_ONLY);
1133 ieee80211_hw_set(wcn->hw, AMPDU_AGGREGATION);
1134 ieee80211_hw_set(wcn->hw, CONNECTION_MONITOR);
1135 ieee80211_hw_set(wcn->hw, SUPPORTS_PS);
1136 ieee80211_hw_set(wcn->hw, SIGNAL_DBM);
1137 ieee80211_hw_set(wcn->hw, HAS_RATE_CONTROL);
1138 ieee80211_hw_set(wcn->hw, SINGLE_SCAN_ON_ALL_BANDS);
1139
1140 wcn->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
1141 BIT(NL80211_IFTYPE_AP) |
1142 BIT(NL80211_IFTYPE_ADHOC) |
1143 BIT(NL80211_IFTYPE_MESH_POINT);
1144
1145 wcn->hw->wiphy->bands[NL80211_BAND_2GHZ] = &wcn_band_2ghz;
1146 if (wcn->rf_id != RF_IRIS_WCN3620)
1147 wcn->hw->wiphy->bands[NL80211_BAND_5GHZ] = &wcn_band_5ghz;
1148
1149 wcn->hw->wiphy->max_scan_ssids = WCN36XX_MAX_SCAN_SSIDS;
1150 wcn->hw->wiphy->max_scan_ie_len = WCN36XX_MAX_SCAN_IE_LEN;
1151
1152 wcn->hw->wiphy->cipher_suites = cipher_suites;
1153 wcn->hw->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
1154
1155#ifdef CONFIG_PM
1156 wcn->hw->wiphy->wowlan = &wowlan_support;
1157#endif
1158
1159 wcn->hw->max_listen_interval = 200;
1160
1161 wcn->hw->queues = 4;
1162
1163 SET_IEEE80211_DEV(wcn->hw, wcn->dev);
1164
1165 wcn->hw->sta_data_size = sizeof(struct wcn36xx_sta);
1166 wcn->hw->vif_data_size = sizeof(struct wcn36xx_vif);
1167
1168 wiphy_ext_feature_set(wcn->hw->wiphy,
1169 NL80211_EXT_FEATURE_CQM_RSSI_LIST);
1170
1171 return ret;
1172}
1173
1174static int wcn36xx_platform_get_resources(struct wcn36xx *wcn,
1175 struct platform_device *pdev)
1176{
1177 struct device_node *mmio_node;
1178 struct device_node *iris_node;
1179 struct resource *res;
1180 int index;
1181 int ret;
1182
1183
1184 res = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "tx");
1185 if (!res) {
1186 wcn36xx_err("failed to get tx_irq\n");
1187 return -ENOENT;
1188 }
1189 wcn->tx_irq = res->start;
1190
1191
1192 res = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "rx");
1193 if (!res) {
1194 wcn36xx_err("failed to get rx_irq\n");
1195 return -ENOENT;
1196 }
1197 wcn->rx_irq = res->start;
1198
1199
1200 wcn->tx_enable_state = qcom_smem_state_get(&pdev->dev,
1201 "tx-enable", &wcn->tx_enable_state_bit);
1202 if (IS_ERR(wcn->tx_enable_state)) {
1203 wcn36xx_err("failed to get tx-enable state\n");
1204 return PTR_ERR(wcn->tx_enable_state);
1205 }
1206
1207
1208 wcn->tx_rings_empty_state = qcom_smem_state_get(&pdev->dev,
1209 "tx-rings-empty", &wcn->tx_rings_empty_state_bit);
1210 if (IS_ERR(wcn->tx_rings_empty_state)) {
1211 wcn36xx_err("failed to get tx-rings-empty state\n");
1212 return PTR_ERR(wcn->tx_rings_empty_state);
1213 }
1214
1215 mmio_node = of_parse_phandle(pdev->dev.parent->of_node, "qcom,mmio", 0);
1216 if (!mmio_node) {
1217 wcn36xx_err("failed to acquire qcom,mmio reference\n");
1218 return -EINVAL;
1219 }
1220
1221 wcn->is_pronto = !!of_device_is_compatible(mmio_node, "qcom,pronto");
1222
1223
1224 index = of_property_match_string(mmio_node, "reg-names", "ccu");
1225 wcn->ccu_base = of_iomap(mmio_node, index);
1226 if (!wcn->ccu_base) {
1227 wcn36xx_err("failed to map ccu memory\n");
1228 ret = -ENOMEM;
1229 goto put_mmio_node;
1230 }
1231
1232
1233 index = of_property_match_string(mmio_node, "reg-names", "dxe");
1234 wcn->dxe_base = of_iomap(mmio_node, index);
1235 if (!wcn->dxe_base) {
1236 wcn36xx_err("failed to map dxe memory\n");
1237 ret = -ENOMEM;
1238 goto unmap_ccu;
1239 }
1240
1241
1242 iris_node = of_get_child_by_name(mmio_node, "iris");
1243 if (iris_node) {
1244 if (of_device_is_compatible(iris_node, "qcom,wcn3620"))
1245 wcn->rf_id = RF_IRIS_WCN3620;
1246 of_node_put(iris_node);
1247 }
1248
1249 of_node_put(mmio_node);
1250 return 0;
1251
1252unmap_ccu:
1253 iounmap(wcn->ccu_base);
1254put_mmio_node:
1255 of_node_put(mmio_node);
1256 return ret;
1257}
1258
1259static int wcn36xx_probe(struct platform_device *pdev)
1260{
1261 struct ieee80211_hw *hw;
1262 struct wcn36xx *wcn;
1263 void *wcnss;
1264 int ret;
1265 const u8 *addr;
1266
1267 wcn36xx_dbg(WCN36XX_DBG_MAC, "platform probe\n");
1268
1269 wcnss = dev_get_drvdata(pdev->dev.parent);
1270
1271 hw = ieee80211_alloc_hw(sizeof(struct wcn36xx), &wcn36xx_ops);
1272 if (!hw) {
1273 wcn36xx_err("failed to alloc hw\n");
1274 ret = -ENOMEM;
1275 goto out_err;
1276 }
1277 platform_set_drvdata(pdev, hw);
1278 wcn = hw->priv;
1279 wcn->hw = hw;
1280 wcn->dev = &pdev->dev;
1281 wcn->first_boot = true;
1282 mutex_init(&wcn->conf_mutex);
1283 mutex_init(&wcn->hal_mutex);
1284 mutex_init(&wcn->scan_lock);
1285
1286 INIT_WORK(&wcn->scan_work, wcn36xx_hw_scan_worker);
1287
1288 wcn->smd_channel = qcom_wcnss_open_channel(wcnss, "WLAN_CTRL", wcn36xx_smd_rsp_process, hw);
1289 if (IS_ERR(wcn->smd_channel)) {
1290 wcn36xx_err("failed to open WLAN_CTRL channel\n");
1291 ret = PTR_ERR(wcn->smd_channel);
1292 goto out_wq;
1293 }
1294
1295 addr = of_get_property(pdev->dev.of_node, "local-mac-address", &ret);
1296 if (addr && ret != ETH_ALEN) {
1297 wcn36xx_err("invalid local-mac-address\n");
1298 ret = -EINVAL;
1299 goto out_wq;
1300 } else if (addr) {
1301 wcn36xx_info("mac address: %pM\n", addr);
1302 SET_IEEE80211_PERM_ADDR(wcn->hw, addr);
1303 }
1304
1305 ret = wcn36xx_platform_get_resources(wcn, pdev);
1306 if (ret)
1307 goto out_wq;
1308
1309 wcn36xx_init_ieee80211(wcn);
1310 ret = ieee80211_register_hw(wcn->hw);
1311 if (ret)
1312 goto out_unmap;
1313
1314 return 0;
1315
1316out_unmap:
1317 iounmap(wcn->ccu_base);
1318 iounmap(wcn->dxe_base);
1319out_wq:
1320 ieee80211_free_hw(hw);
1321out_err:
1322 return ret;
1323}
1324
1325static int wcn36xx_remove(struct platform_device *pdev)
1326{
1327 struct ieee80211_hw *hw = platform_get_drvdata(pdev);
1328 struct wcn36xx *wcn = hw->priv;
1329 wcn36xx_dbg(WCN36XX_DBG_MAC, "platform remove\n");
1330
1331 release_firmware(wcn->nv);
1332
1333 ieee80211_unregister_hw(hw);
1334
1335 qcom_smem_state_put(wcn->tx_enable_state);
1336 qcom_smem_state_put(wcn->tx_rings_empty_state);
1337
1338 rpmsg_destroy_ept(wcn->smd_channel);
1339
1340 iounmap(wcn->dxe_base);
1341 iounmap(wcn->ccu_base);
1342
1343 mutex_destroy(&wcn->hal_mutex);
1344 ieee80211_free_hw(hw);
1345
1346 return 0;
1347}
1348
1349static const struct of_device_id wcn36xx_of_match[] = {
1350 { .compatible = "qcom,wcnss-wlan" },
1351 {}
1352};
1353MODULE_DEVICE_TABLE(of, wcn36xx_of_match);
1354
1355static struct platform_driver wcn36xx_driver = {
1356 .probe = wcn36xx_probe,
1357 .remove = wcn36xx_remove,
1358 .driver = {
1359 .name = "wcn36xx",
1360 .of_match_table = wcn36xx_of_match,
1361 },
1362};
1363
1364module_platform_driver(wcn36xx_driver);
1365
1366MODULE_LICENSE("Dual BSD/GPL");
1367MODULE_AUTHOR("Eugene Krasnikov k.eugene.e@gmail.com");
1368MODULE_FIRMWARE(WLAN_NV_FILE);
1369
