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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#include "testmode.h"
30
31unsigned int wcn36xx_dbg_mask;
32module_param_named(debug_mask, wcn36xx_dbg_mask, uint, 0644);
33MODULE_PARM_DESC(debug_mask, "Debugging mask");
34
35#define CHAN2G(_freq, _idx) { \
36 .band = NL80211_BAND_2GHZ, \
37 .center_freq = (_freq), \
38 .hw_value = (_idx), \
39 .max_power = 25, \
40}
41
42#define CHAN5G(_freq, _idx) { \
43 .band = NL80211_BAND_5GHZ, \
44 .center_freq = (_freq), \
45 .hw_value = (_idx), \
46 .max_power = 25, \
47}
48
49
50
51static struct ieee80211_channel wcn_2ghz_channels[] = {
52 CHAN2G(2412, 1),
53 CHAN2G(2417, 2),
54 CHAN2G(2422, 3),
55 CHAN2G(2427, 4),
56 CHAN2G(2432, 5),
57 CHAN2G(2437, 6),
58 CHAN2G(2442, 7),
59 CHAN2G(2447, 8),
60 CHAN2G(2452, 9),
61 CHAN2G(2457, 10),
62 CHAN2G(2462, 11),
63 CHAN2G(2467, 12),
64 CHAN2G(2472, 13),
65 CHAN2G(2484, 14)
66
67};
68
69static struct ieee80211_channel wcn_5ghz_channels[] = {
70 CHAN5G(5180, 36),
71 CHAN5G(5200, 40),
72 CHAN5G(5220, 44),
73 CHAN5G(5240, 48),
74 CHAN5G(5260, 52),
75 CHAN5G(5280, 56),
76 CHAN5G(5300, 60),
77 CHAN5G(5320, 64),
78 CHAN5G(5500, 100),
79 CHAN5G(5520, 104),
80 CHAN5G(5540, 108),
81 CHAN5G(5560, 112),
82 CHAN5G(5580, 116),
83 CHAN5G(5600, 120),
84 CHAN5G(5620, 124),
85 CHAN5G(5640, 128),
86 CHAN5G(5660, 132),
87 CHAN5G(5700, 140),
88 CHAN5G(5745, 149),
89 CHAN5G(5765, 153),
90 CHAN5G(5785, 157),
91 CHAN5G(5805, 161),
92 CHAN5G(5825, 165)
93};
94
95#define RATE(_bitrate, _hw_rate, _flags) { \
96 .bitrate = (_bitrate), \
97 .flags = (_flags), \
98 .hw_value = (_hw_rate), \
99 .hw_value_short = (_hw_rate) \
100}
101
102static struct ieee80211_rate wcn_2ghz_rates[] = {
103 RATE(10, HW_RATE_INDEX_1MBPS, 0),
104 RATE(20, HW_RATE_INDEX_2MBPS, IEEE80211_RATE_SHORT_PREAMBLE),
105 RATE(55, HW_RATE_INDEX_5_5MBPS, IEEE80211_RATE_SHORT_PREAMBLE),
106 RATE(110, HW_RATE_INDEX_11MBPS, IEEE80211_RATE_SHORT_PREAMBLE),
107 RATE(60, HW_RATE_INDEX_6MBPS, 0),
108 RATE(90, HW_RATE_INDEX_9MBPS, 0),
109 RATE(120, HW_RATE_INDEX_12MBPS, 0),
110 RATE(180, HW_RATE_INDEX_18MBPS, 0),
111 RATE(240, HW_RATE_INDEX_24MBPS, 0),
112 RATE(360, HW_RATE_INDEX_36MBPS, 0),
113 RATE(480, HW_RATE_INDEX_48MBPS, 0),
114 RATE(540, HW_RATE_INDEX_54MBPS, 0)
115};
116
117static struct ieee80211_rate wcn_5ghz_rates[] = {
118 RATE(60, HW_RATE_INDEX_6MBPS, 0),
119 RATE(90, HW_RATE_INDEX_9MBPS, 0),
120 RATE(120, HW_RATE_INDEX_12MBPS, 0),
121 RATE(180, HW_RATE_INDEX_18MBPS, 0),
122 RATE(240, HW_RATE_INDEX_24MBPS, 0),
123 RATE(360, HW_RATE_INDEX_36MBPS, 0),
124 RATE(480, HW_RATE_INDEX_48MBPS, 0),
125 RATE(540, HW_RATE_INDEX_54MBPS, 0)
126};
127
128static struct ieee80211_supported_band wcn_band_2ghz = {
129 .channels = wcn_2ghz_channels,
130 .n_channels = ARRAY_SIZE(wcn_2ghz_channels),
131 .bitrates = wcn_2ghz_rates,
132 .n_bitrates = ARRAY_SIZE(wcn_2ghz_rates),
133 .ht_cap = {
134 .cap = IEEE80211_HT_CAP_GRN_FLD |
135 IEEE80211_HT_CAP_SGI_20 |
136 IEEE80211_HT_CAP_DSSSCCK40 |
137 IEEE80211_HT_CAP_LSIG_TXOP_PROT,
138 .ht_supported = true,
139 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K,
140 .ampdu_density = IEEE80211_HT_MPDU_DENSITY_16,
141 .mcs = {
142 .rx_mask = { 0xff, 0, 0, 0, 0, 0, 0, 0, 0, 0, },
143 .rx_highest = cpu_to_le16(72),
144 .tx_params = IEEE80211_HT_MCS_TX_DEFINED,
145 }
146 }
147};
148
149static struct ieee80211_supported_band wcn_band_5ghz = {
150 .channels = wcn_5ghz_channels,
151 .n_channels = ARRAY_SIZE(wcn_5ghz_channels),
152 .bitrates = wcn_5ghz_rates,
153 .n_bitrates = ARRAY_SIZE(wcn_5ghz_rates),
154 .ht_cap = {
155 .cap = IEEE80211_HT_CAP_GRN_FLD |
156 IEEE80211_HT_CAP_SGI_20 |
157 IEEE80211_HT_CAP_DSSSCCK40 |
158 IEEE80211_HT_CAP_LSIG_TXOP_PROT |
159 IEEE80211_HT_CAP_SGI_40 |
160 IEEE80211_HT_CAP_SUP_WIDTH_20_40,
161 .ht_supported = true,
162 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K,
163 .ampdu_density = IEEE80211_HT_MPDU_DENSITY_16,
164 .mcs = {
165 .rx_mask = { 0xff, 0, 0, 0, 0, 0, 0, 0, 0, 0, },
166 .rx_highest = cpu_to_le16(72),
167 .tx_params = IEEE80211_HT_MCS_TX_DEFINED,
168 }
169 }
170};
171
172#ifdef CONFIG_PM
173
174static const struct wiphy_wowlan_support wowlan_support = {
175 .flags = WIPHY_WOWLAN_ANY
176};
177
178#endif
179
180static inline u8 get_sta_index(struct ieee80211_vif *vif,
181 struct wcn36xx_sta *sta_priv)
182{
183 return NL80211_IFTYPE_STATION == vif->type ?
184 sta_priv->bss_sta_index :
185 sta_priv->sta_index;
186}
187
188static const char * const wcn36xx_caps_names[] = {
189 "MCC",
190 "P2P",
191 "DOT11AC",
192 "SLM_SESSIONIZATION",
193 "DOT11AC_OPMODE",
194 "SAP32STA",
195 "TDLS",
196 "P2P_GO_NOA_DECOUPLE_INIT_SCAN",
197 "WLANACTIVE_OFFLOAD",
198 "BEACON_OFFLOAD",
199 "SCAN_OFFLOAD",
200 "ROAM_OFFLOAD",
201 "BCN_MISS_OFFLOAD",
202 "STA_POWERSAVE",
203 "STA_ADVANCED_PWRSAVE",
204 "AP_UAPSD",
205 "AP_DFS",
206 "BLOCKACK",
207 "PHY_ERR",
208 "BCN_FILTER",
209 "RTT",
210 "RATECTRL",
211 "WOW",
212 "WLAN_ROAM_SCAN_OFFLOAD",
213 "SPECULATIVE_PS_POLL",
214 "SCAN_SCH",
215 "IBSS_HEARTBEAT_OFFLOAD",
216 "WLAN_SCAN_OFFLOAD",
217 "WLAN_PERIODIC_TX_PTRN",
218 "ADVANCE_TDLS",
219 "BATCH_SCAN",
220 "FW_IN_TX_PATH",
221 "EXTENDED_NSOFFLOAD_SLOT",
222 "CH_SWITCH_V1",
223 "HT40_OBSS_SCAN",
224 "UPDATE_CHANNEL_LIST",
225 "WLAN_MCADDR_FLT",
226 "WLAN_CH144",
227 "NAN",
228 "TDLS_SCAN_COEXISTENCE",
229 "LINK_LAYER_STATS_MEAS",
230 "MU_MIMO",
231 "EXTENDED_SCAN",
232 "DYNAMIC_WMM_PS",
233 "MAC_SPOOFED_SCAN",
234 "BMU_ERROR_GENERIC_RECOVERY",
235 "DISA",
236 "FW_STATS",
237 "WPS_PRBRSP_TMPL",
238 "BCN_IE_FLT_DELTA",
239 "TDLS_OFF_CHANNEL",
240 "RTT3",
241 "MGMT_FRAME_LOGGING",
242 "ENHANCED_TXBD_COMPLETION",
243 "LOGGING_ENHANCEMENT",
244 "EXT_SCAN_ENHANCED",
245 "MEMORY_DUMP_SUPPORTED",
246 "PER_PKT_STATS_SUPPORTED",
247 "EXT_LL_STAT",
248 "WIFI_CONFIG",
249 "ANTENNA_DIVERSITY_SELECTION",
250};
251
252static const char *wcn36xx_get_cap_name(enum place_holder_in_cap_bitmap x)
253{
254 if (x >= ARRAY_SIZE(wcn36xx_caps_names))
255 return "UNKNOWN";
256 return wcn36xx_caps_names[x];
257}
258
259static void wcn36xx_feat_caps_info(struct wcn36xx *wcn)
260{
261 int i;
262
263 for (i = 0; i < MAX_FEATURE_SUPPORTED; i++) {
264 if (get_feat_caps(wcn->fw_feat_caps, i))
265 wcn36xx_dbg(WCN36XX_DBG_MAC, "FW Cap %s\n", wcn36xx_get_cap_name(i));
266 }
267}
268
269static int wcn36xx_start(struct ieee80211_hw *hw)
270{
271 struct wcn36xx *wcn = hw->priv;
272 int ret;
273
274 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac start\n");
275
276
277 ret = wcn36xx_smd_open(wcn);
278 if (ret) {
279 wcn36xx_err("Failed to open smd channel: %d\n", ret);
280 goto out_err;
281 }
282
283
284 ret = wcn36xx_dxe_allocate_mem_pools(wcn);
285 if (ret) {
286 wcn36xx_err("Failed to alloc DXE mempool: %d\n", ret);
287 goto out_smd_close;
288 }
289
290 ret = wcn36xx_dxe_alloc_ctl_blks(wcn);
291 if (ret) {
292 wcn36xx_err("Failed to alloc DXE ctl blocks: %d\n", ret);
293 goto out_free_dxe_pool;
294 }
295
296 wcn->hal_buf = kmalloc(WCN36XX_HAL_BUF_SIZE, GFP_KERNEL);
297 if (!wcn->hal_buf) {
298 wcn36xx_err("Failed to allocate smd buf\n");
299 ret = -ENOMEM;
300 goto out_free_dxe_ctl;
301 }
302
303 ret = wcn36xx_smd_load_nv(wcn);
304 if (ret) {
305 wcn36xx_err("Failed to push NV to chip\n");
306 goto out_free_smd_buf;
307 }
308
309 ret = wcn36xx_smd_start(wcn);
310 if (ret) {
311 wcn36xx_err("Failed to start chip\n");
312 goto out_free_smd_buf;
313 }
314
315 if (!wcn36xx_is_fw_version(wcn, 1, 2, 2, 24)) {
316 ret = wcn36xx_smd_feature_caps_exchange(wcn);
317 if (ret)
318 wcn36xx_warn("Exchange feature caps failed\n");
319 else
320 wcn36xx_feat_caps_info(wcn);
321 }
322
323
324 ret = wcn36xx_dxe_init(wcn);
325 if (ret) {
326 wcn36xx_err("DXE init failed\n");
327 goto out_smd_stop;
328 }
329
330 wcn36xx_debugfs_init(wcn);
331
332 INIT_LIST_HEAD(&wcn->vif_list);
333 spin_lock_init(&wcn->dxe_lock);
334
335 return 0;
336
337out_smd_stop:
338 wcn36xx_smd_stop(wcn);
339out_free_smd_buf:
340 kfree(wcn->hal_buf);
341out_free_dxe_ctl:
342 wcn36xx_dxe_free_ctl_blks(wcn);
343out_free_dxe_pool:
344 wcn36xx_dxe_free_mem_pools(wcn);
345out_smd_close:
346 wcn36xx_smd_close(wcn);
347out_err:
348 return ret;
349}
350
351static void wcn36xx_stop(struct ieee80211_hw *hw)
352{
353 struct wcn36xx *wcn = hw->priv;
354
355 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac stop\n");
356
357 cancel_work_sync(&wcn->scan_work);
358
359 mutex_lock(&wcn->scan_lock);
360 if (wcn->scan_req) {
361 struct cfg80211_scan_info scan_info = {
362 .aborted = true,
363 };
364
365 ieee80211_scan_completed(wcn->hw, &scan_info);
366 }
367 wcn->scan_req = NULL;
368 mutex_unlock(&wcn->scan_lock);
369
370 wcn36xx_debugfs_exit(wcn);
371 wcn36xx_smd_stop(wcn);
372 wcn36xx_dxe_deinit(wcn);
373 wcn36xx_smd_close(wcn);
374
375 wcn36xx_dxe_free_mem_pools(wcn);
376 wcn36xx_dxe_free_ctl_blks(wcn);
377
378 kfree(wcn->hal_buf);
379}
380
381static int wcn36xx_config(struct ieee80211_hw *hw, u32 changed)
382{
383 struct wcn36xx *wcn = hw->priv;
384 struct ieee80211_vif *vif = NULL;
385 struct wcn36xx_vif *tmp;
386
387 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac config changed 0x%08x\n", changed);
388
389 mutex_lock(&wcn->conf_mutex);
390
391 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
392 int ch = WCN36XX_HW_CHANNEL(wcn);
393 wcn36xx_dbg(WCN36XX_DBG_MAC, "wcn36xx_config channel switch=%d\n",
394 ch);
395 list_for_each_entry(tmp, &wcn->vif_list, list) {
396 vif = wcn36xx_priv_to_vif(tmp);
397 wcn36xx_smd_switch_channel(wcn, vif, ch);
398 }
399 }
400
401 if (changed & IEEE80211_CONF_CHANGE_PS) {
402 list_for_each_entry(tmp, &wcn->vif_list, list) {
403 vif = wcn36xx_priv_to_vif(tmp);
404 if (hw->conf.flags & IEEE80211_CONF_PS) {
405 if (vif->bss_conf.ps)
406 wcn36xx_pmc_enter_bmps_state(wcn, vif);
407 } else {
408 wcn36xx_pmc_exit_bmps_state(wcn, vif);
409 }
410 }
411 }
412
413 mutex_unlock(&wcn->conf_mutex);
414
415 return 0;
416}
417
418static void wcn36xx_configure_filter(struct ieee80211_hw *hw,
419 unsigned int changed,
420 unsigned int *total, u64 multicast)
421{
422 struct wcn36xx_hal_rcv_flt_mc_addr_list_type *fp;
423 struct wcn36xx *wcn = hw->priv;
424 struct wcn36xx_vif *tmp;
425 struct ieee80211_vif *vif = NULL;
426
427 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac configure filter\n");
428
429 mutex_lock(&wcn->conf_mutex);
430
431 *total &= FIF_ALLMULTI;
432
433 fp = (void *)(unsigned long)multicast;
434 list_for_each_entry(tmp, &wcn->vif_list, list) {
435 vif = wcn36xx_priv_to_vif(tmp);
436
437
438 if (*total & FIF_ALLMULTI)
439 wcn36xx_smd_set_mc_list(wcn, vif, NULL);
440 else if (NL80211_IFTYPE_STATION == vif->type && tmp->sta_assoc)
441 wcn36xx_smd_set_mc_list(wcn, vif, fp);
442 }
443
444 mutex_unlock(&wcn->conf_mutex);
445 kfree(fp);
446}
447
448static u64 wcn36xx_prepare_multicast(struct ieee80211_hw *hw,
449 struct netdev_hw_addr_list *mc_list)
450{
451 struct wcn36xx_hal_rcv_flt_mc_addr_list_type *fp;
452 struct netdev_hw_addr *ha;
453
454 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac prepare multicast list\n");
455 fp = kzalloc(sizeof(*fp), GFP_ATOMIC);
456 if (!fp) {
457 wcn36xx_err("Out of memory setting filters.\n");
458 return 0;
459 }
460
461 fp->mc_addr_count = 0;
462
463 if (netdev_hw_addr_list_count(mc_list) <=
464 WCN36XX_HAL_MAX_NUM_MULTICAST_ADDRESS) {
465 netdev_hw_addr_list_for_each(ha, mc_list) {
466 memcpy(fp->mc_addr[fp->mc_addr_count],
467 ha->addr, ETH_ALEN);
468 fp->mc_addr_count++;
469 }
470 }
471
472 return (u64)(unsigned long)fp;
473}
474
475static void wcn36xx_tx(struct ieee80211_hw *hw,
476 struct ieee80211_tx_control *control,
477 struct sk_buff *skb)
478{
479 struct wcn36xx *wcn = hw->priv;
480 struct wcn36xx_sta *sta_priv = NULL;
481
482 if (control->sta)
483 sta_priv = wcn36xx_sta_to_priv(control->sta);
484
485 if (wcn36xx_start_tx(wcn, sta_priv, skb))
486 ieee80211_free_txskb(wcn->hw, skb);
487}
488
489static int wcn36xx_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
490 struct ieee80211_vif *vif,
491 struct ieee80211_sta *sta,
492 struct ieee80211_key_conf *key_conf)
493{
494 struct wcn36xx *wcn = hw->priv;
495 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
496 struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(sta);
497 int ret = 0;
498 u8 key[WLAN_MAX_KEY_LEN];
499
500 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac80211 set key\n");
501 wcn36xx_dbg(WCN36XX_DBG_MAC, "Key: cmd=0x%x algo:0x%x, id:%d, len:%d flags 0x%x\n",
502 cmd, key_conf->cipher, key_conf->keyidx,
503 key_conf->keylen, key_conf->flags);
504 wcn36xx_dbg_dump(WCN36XX_DBG_MAC, "KEY: ",
505 key_conf->key,
506 key_conf->keylen);
507
508 mutex_lock(&wcn->conf_mutex);
509
510 switch (key_conf->cipher) {
511 case WLAN_CIPHER_SUITE_WEP40:
512 vif_priv->encrypt_type = WCN36XX_HAL_ED_WEP40;
513 break;
514 case WLAN_CIPHER_SUITE_WEP104:
515 vif_priv->encrypt_type = WCN36XX_HAL_ED_WEP40;
516 break;
517 case WLAN_CIPHER_SUITE_CCMP:
518 vif_priv->encrypt_type = WCN36XX_HAL_ED_CCMP;
519 break;
520 case WLAN_CIPHER_SUITE_TKIP:
521 vif_priv->encrypt_type = WCN36XX_HAL_ED_TKIP;
522 break;
523 default:
524 wcn36xx_err("Unsupported key type 0x%x\n",
525 key_conf->cipher);
526 ret = -EOPNOTSUPP;
527 goto out;
528 }
529
530 switch (cmd) {
531 case SET_KEY:
532 if (WCN36XX_HAL_ED_TKIP == vif_priv->encrypt_type) {
533
534
535
536
537
538
539
540 memcpy(key, key_conf->key, 16);
541 memcpy(key + 16, key_conf->key + 24, 8);
542 memcpy(key + 24, key_conf->key + 16, 8);
543 } else {
544 memcpy(key, key_conf->key, key_conf->keylen);
545 }
546
547 if (IEEE80211_KEY_FLAG_PAIRWISE & key_conf->flags) {
548 sta_priv->is_data_encrypted = true;
549
550 if (NL80211_IFTYPE_STATION == vif->type)
551 wcn36xx_smd_config_bss(wcn,
552 vif,
553 sta,
554 sta->addr,
555 true);
556
557 wcn36xx_smd_set_stakey(wcn,
558 vif_priv->encrypt_type,
559 key_conf->keyidx,
560 key_conf->keylen,
561 key,
562 get_sta_index(vif, sta_priv));
563 } else {
564 wcn36xx_smd_set_bsskey(wcn,
565 vif_priv->encrypt_type,
566 vif_priv->bss_index,
567 key_conf->keyidx,
568 key_conf->keylen,
569 key);
570 if ((WLAN_CIPHER_SUITE_WEP40 == key_conf->cipher) ||
571 (WLAN_CIPHER_SUITE_WEP104 == key_conf->cipher)) {
572 sta_priv->is_data_encrypted = true;
573 wcn36xx_smd_set_stakey(wcn,
574 vif_priv->encrypt_type,
575 key_conf->keyidx,
576 key_conf->keylen,
577 key,
578 get_sta_index(vif, sta_priv));
579 }
580 }
581 break;
582 case DISABLE_KEY:
583 if (!(IEEE80211_KEY_FLAG_PAIRWISE & key_conf->flags)) {
584 if (vif_priv->bss_index != WCN36XX_HAL_BSS_INVALID_IDX)
585 wcn36xx_smd_remove_bsskey(wcn,
586 vif_priv->encrypt_type,
587 vif_priv->bss_index,
588 key_conf->keyidx);
589
590 vif_priv->encrypt_type = WCN36XX_HAL_ED_NONE;
591 } else {
592 sta_priv->is_data_encrypted = false;
593
594 if (sta_priv->aid)
595 wcn36xx_smd_remove_stakey(wcn,
596 vif_priv->encrypt_type,
597 key_conf->keyidx,
598 get_sta_index(vif, sta_priv));
599 }
600 break;
601 default:
602 wcn36xx_err("Unsupported key cmd 0x%x\n", cmd);
603 ret = -EOPNOTSUPP;
604 goto out;
605 }
606
607out:
608 mutex_unlock(&wcn->conf_mutex);
609
610 return ret;
611}
612
613static void wcn36xx_hw_scan_worker(struct work_struct *work)
614{
615 struct wcn36xx *wcn = container_of(work, struct wcn36xx, scan_work);
616 struct cfg80211_scan_request *req = wcn->scan_req;
617 u8 channels[WCN36XX_HAL_PNO_MAX_NETW_CHANNELS_EX];
618 struct cfg80211_scan_info scan_info = {};
619 bool aborted = false;
620 int i;
621
622 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac80211 scan %d channels worker\n", req->n_channels);
623
624 for (i = 0; i < req->n_channels; i++)
625 channels[i] = req->channels[i]->hw_value;
626
627 wcn36xx_smd_update_scan_params(wcn, channels, req->n_channels);
628
629 wcn36xx_smd_init_scan(wcn, HAL_SYS_MODE_SCAN);
630 for (i = 0; i < req->n_channels; i++) {
631 mutex_lock(&wcn->scan_lock);
632 aborted = wcn->scan_aborted;
633 mutex_unlock(&wcn->scan_lock);
634
635 if (aborted)
636 break;
637
638 wcn->scan_freq = req->channels[i]->center_freq;
639 wcn->scan_band = req->channels[i]->band;
640
641 wcn36xx_smd_start_scan(wcn, req->channels[i]->hw_value);
642 msleep(30);
643 wcn36xx_smd_end_scan(wcn, req->channels[i]->hw_value);
644
645 wcn->scan_freq = 0;
646 }
647 wcn36xx_smd_finish_scan(wcn, HAL_SYS_MODE_SCAN);
648
649 scan_info.aborted = aborted;
650 ieee80211_scan_completed(wcn->hw, &scan_info);
651
652 mutex_lock(&wcn->scan_lock);
653 wcn->scan_req = NULL;
654 mutex_unlock(&wcn->scan_lock);
655}
656
657static int wcn36xx_hw_scan(struct ieee80211_hw *hw,
658 struct ieee80211_vif *vif,
659 struct ieee80211_scan_request *hw_req)
660{
661 struct wcn36xx *wcn = hw->priv;
662 mutex_lock(&wcn->scan_lock);
663 if (wcn->scan_req) {
664 mutex_unlock(&wcn->scan_lock);
665 return -EBUSY;
666 }
667
668 wcn->scan_aborted = false;
669 wcn->scan_req = &hw_req->req;
670
671 mutex_unlock(&wcn->scan_lock);
672
673 if (!get_feat_caps(wcn->fw_feat_caps, SCAN_OFFLOAD)) {
674
675 schedule_work(&wcn->scan_work);
676 return 0;
677 }
678
679 return wcn36xx_smd_start_hw_scan(wcn, vif, &hw_req->req);
680}
681
682static void wcn36xx_cancel_hw_scan(struct ieee80211_hw *hw,
683 struct ieee80211_vif *vif)
684{
685 struct wcn36xx *wcn = hw->priv;
686
687 mutex_lock(&wcn->scan_lock);
688 wcn->scan_aborted = true;
689 mutex_unlock(&wcn->scan_lock);
690
691 if (get_feat_caps(wcn->fw_feat_caps, SCAN_OFFLOAD)) {
692
693
694 wcn36xx_smd_stop_hw_scan(wcn);
695 } else {
696 struct cfg80211_scan_info scan_info = {
697 .aborted = true,
698 };
699
700 cancel_work_sync(&wcn->scan_work);
701 ieee80211_scan_completed(wcn->hw, &scan_info);
702 }
703}
704
705static void wcn36xx_update_allowed_rates(struct ieee80211_sta *sta,
706 enum nl80211_band band)
707{
708 int i, size;
709 u16 *rates_table;
710 struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(sta);
711 u32 rates = sta->supp_rates[band];
712
713 memset(&sta_priv->supported_rates, 0,
714 sizeof(sta_priv->supported_rates));
715 sta_priv->supported_rates.op_rate_mode = STA_11n;
716
717 size = ARRAY_SIZE(sta_priv->supported_rates.dsss_rates);
718 rates_table = sta_priv->supported_rates.dsss_rates;
719 if (band == NL80211_BAND_2GHZ) {
720 for (i = 0; i < size; i++) {
721 if (rates & 0x01) {
722 rates_table[i] = wcn_2ghz_rates[i].hw_value;
723 rates = rates >> 1;
724 }
725 }
726 }
727
728 size = ARRAY_SIZE(sta_priv->supported_rates.ofdm_rates);
729 rates_table = sta_priv->supported_rates.ofdm_rates;
730 for (i = 0; i < size; i++) {
731 if (rates & 0x01) {
732 rates_table[i] = wcn_5ghz_rates[i].hw_value;
733 rates = rates >> 1;
734 }
735 }
736
737 if (sta->ht_cap.ht_supported) {
738 BUILD_BUG_ON(sizeof(sta->ht_cap.mcs.rx_mask) >
739 sizeof(sta_priv->supported_rates.supported_mcs_set));
740 memcpy(sta_priv->supported_rates.supported_mcs_set,
741 sta->ht_cap.mcs.rx_mask,
742 sizeof(sta->ht_cap.mcs.rx_mask));
743 }
744}
745void wcn36xx_set_default_rates(struct wcn36xx_hal_supported_rates *rates)
746{
747 u16 ofdm_rates[WCN36XX_HAL_NUM_OFDM_RATES] = {
748 HW_RATE_INDEX_6MBPS,
749 HW_RATE_INDEX_9MBPS,
750 HW_RATE_INDEX_12MBPS,
751 HW_RATE_INDEX_18MBPS,
752 HW_RATE_INDEX_24MBPS,
753 HW_RATE_INDEX_36MBPS,
754 HW_RATE_INDEX_48MBPS,
755 HW_RATE_INDEX_54MBPS
756 };
757 u16 dsss_rates[WCN36XX_HAL_NUM_DSSS_RATES] = {
758 HW_RATE_INDEX_1MBPS,
759 HW_RATE_INDEX_2MBPS,
760 HW_RATE_INDEX_5_5MBPS,
761 HW_RATE_INDEX_11MBPS
762 };
763
764 rates->op_rate_mode = STA_11n;
765 memcpy(rates->dsss_rates, dsss_rates,
766 sizeof(*dsss_rates) * WCN36XX_HAL_NUM_DSSS_RATES);
767 memcpy(rates->ofdm_rates, ofdm_rates,
768 sizeof(*ofdm_rates) * WCN36XX_HAL_NUM_OFDM_RATES);
769 rates->supported_mcs_set[0] = 0xFF;
770}
771static void wcn36xx_bss_info_changed(struct ieee80211_hw *hw,
772 struct ieee80211_vif *vif,
773 struct ieee80211_bss_conf *bss_conf,
774 u32 changed)
775{
776 struct wcn36xx *wcn = hw->priv;
777 struct sk_buff *skb = NULL;
778 u16 tim_off, tim_len;
779 enum wcn36xx_hal_link_state link_state;
780 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
781
782 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss info changed vif %p changed 0x%08x\n",
783 vif, changed);
784
785 mutex_lock(&wcn->conf_mutex);
786
787 if (changed & BSS_CHANGED_BEACON_INFO) {
788 wcn36xx_dbg(WCN36XX_DBG_MAC,
789 "mac bss changed dtim period %d\n",
790 bss_conf->dtim_period);
791
792 vif_priv->dtim_period = bss_conf->dtim_period;
793 }
794
795 if (changed & BSS_CHANGED_BSSID) {
796 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss changed_bssid %pM\n",
797 bss_conf->bssid);
798
799 if (!is_zero_ether_addr(bss_conf->bssid)) {
800 vif_priv->is_joining = true;
801 vif_priv->bss_index = WCN36XX_HAL_BSS_INVALID_IDX;
802 wcn36xx_smd_set_link_st(wcn, bss_conf->bssid, vif->addr,
803 WCN36XX_HAL_LINK_PREASSOC_STATE);
804 wcn36xx_smd_join(wcn, bss_conf->bssid,
805 vif->addr, WCN36XX_HW_CHANNEL(wcn));
806 wcn36xx_smd_config_bss(wcn, vif, NULL,
807 bss_conf->bssid, false);
808 } else {
809 vif_priv->is_joining = false;
810 wcn36xx_smd_delete_bss(wcn, vif);
811 wcn36xx_smd_set_link_st(wcn, bss_conf->bssid, vif->addr,
812 WCN36XX_HAL_LINK_IDLE_STATE);
813 vif_priv->encrypt_type = WCN36XX_HAL_ED_NONE;
814 }
815 }
816
817 if (changed & BSS_CHANGED_SSID) {
818 wcn36xx_dbg(WCN36XX_DBG_MAC,
819 "mac bss changed ssid\n");
820 wcn36xx_dbg_dump(WCN36XX_DBG_MAC, "ssid ",
821 bss_conf->ssid, bss_conf->ssid_len);
822
823 vif_priv->ssid.length = bss_conf->ssid_len;
824 memcpy(&vif_priv->ssid.ssid,
825 bss_conf->ssid,
826 bss_conf->ssid_len);
827 }
828
829 if (changed & BSS_CHANGED_ASSOC) {
830 vif_priv->is_joining = false;
831 if (bss_conf->assoc) {
832 struct ieee80211_sta *sta;
833 struct wcn36xx_sta *sta_priv;
834
835 wcn36xx_dbg(WCN36XX_DBG_MAC,
836 "mac assoc bss %pM vif %pM AID=%d\n",
837 bss_conf->bssid,
838 vif->addr,
839 bss_conf->aid);
840
841 vif_priv->sta_assoc = true;
842
843
844
845
846
847
848
849 sta = ieee80211_find_sta(vif, bss_conf->bssid);
850 if (!sta) {
851 wcn36xx_err("sta %pM is not found\n",
852 bss_conf->bssid);
853 goto out;
854 }
855 sta_priv = wcn36xx_sta_to_priv(sta);
856
857 wcn36xx_update_allowed_rates(sta, WCN36XX_BAND(wcn));
858
859 wcn36xx_smd_set_link_st(wcn, bss_conf->bssid,
860 vif->addr,
861 WCN36XX_HAL_LINK_POSTASSOC_STATE);
862 wcn36xx_smd_config_bss(wcn, vif, sta,
863 bss_conf->bssid,
864 true);
865 sta_priv->aid = bss_conf->aid;
866
867
868
869
870 wcn36xx_smd_config_sta(wcn, vif, sta);
871 } else {
872 wcn36xx_dbg(WCN36XX_DBG_MAC,
873 "disassociated bss %pM vif %pM AID=%d\n",
874 bss_conf->bssid,
875 vif->addr,
876 bss_conf->aid);
877 vif_priv->sta_assoc = false;
878 wcn36xx_smd_set_link_st(wcn,
879 bss_conf->bssid,
880 vif->addr,
881 WCN36XX_HAL_LINK_IDLE_STATE);
882 }
883 }
884
885 if (changed & BSS_CHANGED_AP_PROBE_RESP) {
886 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss changed ap probe resp\n");
887 skb = ieee80211_proberesp_get(hw, vif);
888 if (!skb) {
889 wcn36xx_err("failed to alloc probereq skb\n");
890 goto out;
891 }
892
893 wcn36xx_smd_update_proberesp_tmpl(wcn, vif, skb);
894 dev_kfree_skb(skb);
895 }
896
897 if (changed & BSS_CHANGED_BEACON_ENABLED ||
898 changed & BSS_CHANGED_BEACON) {
899 wcn36xx_dbg(WCN36XX_DBG_MAC,
900 "mac bss changed beacon enabled %d\n",
901 bss_conf->enable_beacon);
902
903 if (bss_conf->enable_beacon) {
904 vif_priv->dtim_period = bss_conf->dtim_period;
905 vif_priv->bss_index = WCN36XX_HAL_BSS_INVALID_IDX;
906 wcn36xx_smd_config_bss(wcn, vif, NULL,
907 vif->addr, false);
908 skb = ieee80211_beacon_get_tim(hw, vif, &tim_off,
909 &tim_len);
910 if (!skb) {
911 wcn36xx_err("failed to alloc beacon skb\n");
912 goto out;
913 }
914 wcn36xx_smd_send_beacon(wcn, vif, skb, tim_off, 0);
915 dev_kfree_skb(skb);
916
917 if (vif->type == NL80211_IFTYPE_ADHOC ||
918 vif->type == NL80211_IFTYPE_MESH_POINT)
919 link_state = WCN36XX_HAL_LINK_IBSS_STATE;
920 else
921 link_state = WCN36XX_HAL_LINK_AP_STATE;
922
923 wcn36xx_smd_set_link_st(wcn, vif->addr, vif->addr,
924 link_state);
925 } else {
926 wcn36xx_smd_delete_bss(wcn, vif);
927 wcn36xx_smd_set_link_st(wcn, vif->addr, vif->addr,
928 WCN36XX_HAL_LINK_IDLE_STATE);
929 }
930 }
931out:
932
933 mutex_unlock(&wcn->conf_mutex);
934
935 return;
936}
937
938
939static int wcn36xx_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
940{
941 struct wcn36xx *wcn = hw->priv;
942 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac set RTS threshold %d\n", value);
943
944 mutex_lock(&wcn->conf_mutex);
945 wcn36xx_smd_update_cfg(wcn, WCN36XX_HAL_CFG_RTS_THRESHOLD, value);
946 mutex_unlock(&wcn->conf_mutex);
947
948 return 0;
949}
950
951static void wcn36xx_remove_interface(struct ieee80211_hw *hw,
952 struct ieee80211_vif *vif)
953{
954 struct wcn36xx *wcn = hw->priv;
955 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
956 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac remove interface vif %p\n", vif);
957
958 mutex_lock(&wcn->conf_mutex);
959
960 list_del(&vif_priv->list);
961 wcn36xx_smd_delete_sta_self(wcn, vif->addr);
962
963 mutex_unlock(&wcn->conf_mutex);
964}
965
966static int wcn36xx_add_interface(struct ieee80211_hw *hw,
967 struct ieee80211_vif *vif)
968{
969 struct wcn36xx *wcn = hw->priv;
970 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
971
972 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac add interface vif %p type %d\n",
973 vif, vif->type);
974
975 if (!(NL80211_IFTYPE_STATION == vif->type ||
976 NL80211_IFTYPE_AP == vif->type ||
977 NL80211_IFTYPE_ADHOC == vif->type ||
978 NL80211_IFTYPE_MESH_POINT == vif->type)) {
979 wcn36xx_warn("Unsupported interface type requested: %d\n",
980 vif->type);
981 return -EOPNOTSUPP;
982 }
983
984 mutex_lock(&wcn->conf_mutex);
985
986 vif_priv->bss_index = WCN36XX_HAL_BSS_INVALID_IDX;
987 list_add(&vif_priv->list, &wcn->vif_list);
988 wcn36xx_smd_add_sta_self(wcn, vif);
989
990 mutex_unlock(&wcn->conf_mutex);
991
992 return 0;
993}
994
995static int wcn36xx_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
996 struct ieee80211_sta *sta)
997{
998 struct wcn36xx *wcn = hw->priv;
999 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
1000 struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(sta);
1001 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac sta add vif %p sta %pM\n",
1002 vif, sta->addr);
1003
1004 mutex_lock(&wcn->conf_mutex);
1005
1006 spin_lock_init(&sta_priv->ampdu_lock);
1007 sta_priv->vif = vif_priv;
1008
1009
1010
1011
1012 if (NL80211_IFTYPE_STATION != vif->type) {
1013 wcn36xx_update_allowed_rates(sta, WCN36XX_BAND(wcn));
1014 sta_priv->aid = sta->aid;
1015 wcn36xx_smd_config_sta(wcn, vif, sta);
1016 }
1017
1018 mutex_unlock(&wcn->conf_mutex);
1019
1020 return 0;
1021}
1022
1023static int wcn36xx_sta_remove(struct ieee80211_hw *hw,
1024 struct ieee80211_vif *vif,
1025 struct ieee80211_sta *sta)
1026{
1027 struct wcn36xx *wcn = hw->priv;
1028 struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(sta);
1029
1030 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac sta remove vif %p sta %pM index %d\n",
1031 vif, sta->addr, sta_priv->sta_index);
1032
1033 mutex_lock(&wcn->conf_mutex);
1034
1035 wcn36xx_smd_delete_sta(wcn, sta_priv->sta_index);
1036 sta_priv->vif = NULL;
1037
1038 mutex_unlock(&wcn->conf_mutex);
1039
1040 return 0;
1041}
1042
1043#ifdef CONFIG_PM
1044
1045static int wcn36xx_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wow)
1046{
1047 struct wcn36xx *wcn = hw->priv;
1048
1049 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac suspend\n");
1050
1051 flush_workqueue(wcn->hal_ind_wq);
1052 wcn36xx_smd_set_power_params(wcn, true);
1053 return 0;
1054}
1055
1056static int wcn36xx_resume(struct ieee80211_hw *hw)
1057{
1058 struct wcn36xx *wcn = hw->priv;
1059
1060 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac resume\n");
1061
1062 flush_workqueue(wcn->hal_ind_wq);
1063 wcn36xx_smd_set_power_params(wcn, false);
1064 return 0;
1065}
1066
1067#endif
1068
1069static int wcn36xx_ampdu_action(struct ieee80211_hw *hw,
1070 struct ieee80211_vif *vif,
1071 struct ieee80211_ampdu_params *params)
1072{
1073 struct wcn36xx *wcn = hw->priv;
1074 struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(params->sta);
1075 struct ieee80211_sta *sta = params->sta;
1076 enum ieee80211_ampdu_mlme_action action = params->action;
1077 u16 tid = params->tid;
1078 u16 *ssn = ¶ms->ssn;
1079
1080 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac ampdu action action %d tid %d\n",
1081 action, tid);
1082
1083 mutex_lock(&wcn->conf_mutex);
1084
1085 switch (action) {
1086 case IEEE80211_AMPDU_RX_START:
1087 sta_priv->tid = tid;
1088 wcn36xx_smd_add_ba_session(wcn, sta, tid, ssn, 0,
1089 get_sta_index(vif, sta_priv));
1090 wcn36xx_smd_add_ba(wcn);
1091 wcn36xx_smd_trigger_ba(wcn, get_sta_index(vif, sta_priv));
1092 break;
1093 case IEEE80211_AMPDU_RX_STOP:
1094 wcn36xx_smd_del_ba(wcn, tid, get_sta_index(vif, sta_priv));
1095 break;
1096 case IEEE80211_AMPDU_TX_START:
1097 spin_lock_bh(&sta_priv->ampdu_lock);
1098 sta_priv->ampdu_state[tid] = WCN36XX_AMPDU_START;
1099 spin_unlock_bh(&sta_priv->ampdu_lock);
1100
1101 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1102 break;
1103 case IEEE80211_AMPDU_TX_OPERATIONAL:
1104 spin_lock_bh(&sta_priv->ampdu_lock);
1105 sta_priv->ampdu_state[tid] = WCN36XX_AMPDU_OPERATIONAL;
1106 spin_unlock_bh(&sta_priv->ampdu_lock);
1107
1108 wcn36xx_smd_add_ba_session(wcn, sta, tid, ssn, 1,
1109 get_sta_index(vif, sta_priv));
1110 break;
1111 case IEEE80211_AMPDU_TX_STOP_FLUSH:
1112 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
1113 case IEEE80211_AMPDU_TX_STOP_CONT:
1114 spin_lock_bh(&sta_priv->ampdu_lock);
1115 sta_priv->ampdu_state[tid] = WCN36XX_AMPDU_NONE;
1116 spin_unlock_bh(&sta_priv->ampdu_lock);
1117
1118 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1119 break;
1120 default:
1121 wcn36xx_err("Unknown AMPDU action\n");
1122 }
1123
1124 mutex_unlock(&wcn->conf_mutex);
1125
1126 return 0;
1127}
1128
1129static const struct ieee80211_ops wcn36xx_ops = {
1130 .start = wcn36xx_start,
1131 .stop = wcn36xx_stop,
1132 .add_interface = wcn36xx_add_interface,
1133 .remove_interface = wcn36xx_remove_interface,
1134#ifdef CONFIG_PM
1135 .suspend = wcn36xx_suspend,
1136 .resume = wcn36xx_resume,
1137#endif
1138 .config = wcn36xx_config,
1139 .prepare_multicast = wcn36xx_prepare_multicast,
1140 .configure_filter = wcn36xx_configure_filter,
1141 .tx = wcn36xx_tx,
1142 .set_key = wcn36xx_set_key,
1143 .hw_scan = wcn36xx_hw_scan,
1144 .cancel_hw_scan = wcn36xx_cancel_hw_scan,
1145 .bss_info_changed = wcn36xx_bss_info_changed,
1146 .set_rts_threshold = wcn36xx_set_rts_threshold,
1147 .sta_add = wcn36xx_sta_add,
1148 .sta_remove = wcn36xx_sta_remove,
1149 .ampdu_action = wcn36xx_ampdu_action,
1150
1151 CFG80211_TESTMODE_CMD(wcn36xx_tm_cmd)
1152};
1153
1154static int wcn36xx_init_ieee80211(struct wcn36xx *wcn)
1155{
1156 int ret = 0;
1157
1158 static const u32 cipher_suites[] = {
1159 WLAN_CIPHER_SUITE_WEP40,
1160 WLAN_CIPHER_SUITE_WEP104,
1161 WLAN_CIPHER_SUITE_TKIP,
1162 WLAN_CIPHER_SUITE_CCMP,
1163 };
1164
1165 ieee80211_hw_set(wcn->hw, TIMING_BEACON_ONLY);
1166 ieee80211_hw_set(wcn->hw, AMPDU_AGGREGATION);
1167 ieee80211_hw_set(wcn->hw, CONNECTION_MONITOR);
1168 ieee80211_hw_set(wcn->hw, SUPPORTS_PS);
1169 ieee80211_hw_set(wcn->hw, SIGNAL_DBM);
1170 ieee80211_hw_set(wcn->hw, HAS_RATE_CONTROL);
1171 ieee80211_hw_set(wcn->hw, SINGLE_SCAN_ON_ALL_BANDS);
1172
1173 wcn->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
1174 BIT(NL80211_IFTYPE_AP) |
1175 BIT(NL80211_IFTYPE_ADHOC) |
1176 BIT(NL80211_IFTYPE_MESH_POINT);
1177
1178 wcn->hw->wiphy->bands[NL80211_BAND_2GHZ] = &wcn_band_2ghz;
1179 if (wcn->rf_id != RF_IRIS_WCN3620)
1180 wcn->hw->wiphy->bands[NL80211_BAND_5GHZ] = &wcn_band_5ghz;
1181
1182 wcn->hw->wiphy->max_scan_ssids = WCN36XX_MAX_SCAN_SSIDS;
1183 wcn->hw->wiphy->max_scan_ie_len = WCN36XX_MAX_SCAN_IE_LEN;
1184
1185 wcn->hw->wiphy->cipher_suites = cipher_suites;
1186 wcn->hw->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
1187
1188#ifdef CONFIG_PM
1189 wcn->hw->wiphy->wowlan = &wowlan_support;
1190#endif
1191
1192 wcn->hw->max_listen_interval = 200;
1193
1194 wcn->hw->queues = 4;
1195
1196 SET_IEEE80211_DEV(wcn->hw, wcn->dev);
1197
1198 wcn->hw->sta_data_size = sizeof(struct wcn36xx_sta);
1199 wcn->hw->vif_data_size = sizeof(struct wcn36xx_vif);
1200
1201 wiphy_ext_feature_set(wcn->hw->wiphy,
1202 NL80211_EXT_FEATURE_CQM_RSSI_LIST);
1203
1204 return ret;
1205}
1206
1207static int wcn36xx_platform_get_resources(struct wcn36xx *wcn,
1208 struct platform_device *pdev)
1209{
1210 struct device_node *mmio_node;
1211 struct device_node *iris_node;
1212 struct resource *res;
1213 int index;
1214 int ret;
1215
1216
1217 res = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "tx");
1218 if (!res) {
1219 wcn36xx_err("failed to get tx_irq\n");
1220 return -ENOENT;
1221 }
1222 wcn->tx_irq = res->start;
1223
1224
1225 res = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "rx");
1226 if (!res) {
1227 wcn36xx_err("failed to get rx_irq\n");
1228 return -ENOENT;
1229 }
1230 wcn->rx_irq = res->start;
1231
1232
1233 wcn->tx_enable_state = qcom_smem_state_get(&pdev->dev,
1234 "tx-enable", &wcn->tx_enable_state_bit);
1235 if (IS_ERR(wcn->tx_enable_state)) {
1236 wcn36xx_err("failed to get tx-enable state\n");
1237 return PTR_ERR(wcn->tx_enable_state);
1238 }
1239
1240
1241 wcn->tx_rings_empty_state = qcom_smem_state_get(&pdev->dev,
1242 "tx-rings-empty", &wcn->tx_rings_empty_state_bit);
1243 if (IS_ERR(wcn->tx_rings_empty_state)) {
1244 wcn36xx_err("failed to get tx-rings-empty state\n");
1245 return PTR_ERR(wcn->tx_rings_empty_state);
1246 }
1247
1248 mmio_node = of_parse_phandle(pdev->dev.parent->of_node, "qcom,mmio", 0);
1249 if (!mmio_node) {
1250 wcn36xx_err("failed to acquire qcom,mmio reference\n");
1251 return -EINVAL;
1252 }
1253
1254 wcn->is_pronto = !!of_device_is_compatible(mmio_node, "qcom,pronto");
1255
1256
1257 index = of_property_match_string(mmio_node, "reg-names", "ccu");
1258 wcn->ccu_base = of_iomap(mmio_node, index);
1259 if (!wcn->ccu_base) {
1260 wcn36xx_err("failed to map ccu memory\n");
1261 ret = -ENOMEM;
1262 goto put_mmio_node;
1263 }
1264
1265
1266 index = of_property_match_string(mmio_node, "reg-names", "dxe");
1267 wcn->dxe_base = of_iomap(mmio_node, index);
1268 if (!wcn->dxe_base) {
1269 wcn36xx_err("failed to map dxe memory\n");
1270 ret = -ENOMEM;
1271 goto unmap_ccu;
1272 }
1273
1274
1275 iris_node = of_get_child_by_name(mmio_node, "iris");
1276 if (iris_node) {
1277 if (of_device_is_compatible(iris_node, "qcom,wcn3620"))
1278 wcn->rf_id = RF_IRIS_WCN3620;
1279 of_node_put(iris_node);
1280 }
1281
1282 of_node_put(mmio_node);
1283 return 0;
1284
1285unmap_ccu:
1286 iounmap(wcn->ccu_base);
1287put_mmio_node:
1288 of_node_put(mmio_node);
1289 return ret;
1290}
1291
1292static int wcn36xx_probe(struct platform_device *pdev)
1293{
1294 struct ieee80211_hw *hw;
1295 struct wcn36xx *wcn;
1296 void *wcnss;
1297 int ret;
1298 const u8 *addr;
1299
1300 wcn36xx_dbg(WCN36XX_DBG_MAC, "platform probe\n");
1301
1302 wcnss = dev_get_drvdata(pdev->dev.parent);
1303
1304 hw = ieee80211_alloc_hw(sizeof(struct wcn36xx), &wcn36xx_ops);
1305 if (!hw) {
1306 wcn36xx_err("failed to alloc hw\n");
1307 ret = -ENOMEM;
1308 goto out_err;
1309 }
1310 platform_set_drvdata(pdev, hw);
1311 wcn = hw->priv;
1312 wcn->hw = hw;
1313 wcn->dev = &pdev->dev;
1314 wcn->first_boot = true;
1315 mutex_init(&wcn->conf_mutex);
1316 mutex_init(&wcn->hal_mutex);
1317 mutex_init(&wcn->scan_lock);
1318
1319 ret = dma_set_mask_and_coherent(wcn->dev, DMA_BIT_MASK(32));
1320 if (ret < 0) {
1321 wcn36xx_err("failed to set DMA mask: %d\n", ret);
1322 goto out_wq;
1323 }
1324
1325 INIT_WORK(&wcn->scan_work, wcn36xx_hw_scan_worker);
1326
1327 wcn->smd_channel = qcom_wcnss_open_channel(wcnss, "WLAN_CTRL", wcn36xx_smd_rsp_process, hw);
1328 if (IS_ERR(wcn->smd_channel)) {
1329 wcn36xx_err("failed to open WLAN_CTRL channel\n");
1330 ret = PTR_ERR(wcn->smd_channel);
1331 goto out_wq;
1332 }
1333
1334 addr = of_get_property(pdev->dev.of_node, "local-mac-address", &ret);
1335 if (addr && ret != ETH_ALEN) {
1336 wcn36xx_err("invalid local-mac-address\n");
1337 ret = -EINVAL;
1338 goto out_wq;
1339 } else if (addr) {
1340 wcn36xx_info("mac address: %pM\n", addr);
1341 SET_IEEE80211_PERM_ADDR(wcn->hw, addr);
1342 }
1343
1344 ret = wcn36xx_platform_get_resources(wcn, pdev);
1345 if (ret)
1346 goto out_wq;
1347
1348 wcn36xx_init_ieee80211(wcn);
1349 ret = ieee80211_register_hw(wcn->hw);
1350 if (ret)
1351 goto out_unmap;
1352
1353 return 0;
1354
1355out_unmap:
1356 iounmap(wcn->ccu_base);
1357 iounmap(wcn->dxe_base);
1358out_wq:
1359 ieee80211_free_hw(hw);
1360out_err:
1361 return ret;
1362}
1363
1364static int wcn36xx_remove(struct platform_device *pdev)
1365{
1366 struct ieee80211_hw *hw = platform_get_drvdata(pdev);
1367 struct wcn36xx *wcn = hw->priv;
1368 wcn36xx_dbg(WCN36XX_DBG_MAC, "platform remove\n");
1369
1370 release_firmware(wcn->nv);
1371
1372 ieee80211_unregister_hw(hw);
1373
1374 qcom_smem_state_put(wcn->tx_enable_state);
1375 qcom_smem_state_put(wcn->tx_rings_empty_state);
1376
1377 rpmsg_destroy_ept(wcn->smd_channel);
1378
1379 iounmap(wcn->dxe_base);
1380 iounmap(wcn->ccu_base);
1381
1382 mutex_destroy(&wcn->hal_mutex);
1383 ieee80211_free_hw(hw);
1384
1385 return 0;
1386}
1387
1388static const struct of_device_id wcn36xx_of_match[] = {
1389 { .compatible = "qcom,wcnss-wlan" },
1390 {}
1391};
1392MODULE_DEVICE_TABLE(of, wcn36xx_of_match);
1393
1394static struct platform_driver wcn36xx_driver = {
1395 .probe = wcn36xx_probe,
1396 .remove = wcn36xx_remove,
1397 .driver = {
1398 .name = "wcn36xx",
1399 .of_match_table = wcn36xx_of_match,
1400 },
1401};
1402
1403module_platform_driver(wcn36xx_driver);
1404
1405MODULE_LICENSE("Dual BSD/GPL");
1406MODULE_AUTHOR("Eugene Krasnikov k.eugene.e@gmail.com");
1407MODULE_FIRMWARE(WLAN_NV_FILE);
1408
