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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 <net/ipv6.h>
29#include "wcn36xx.h"
30#include "testmode.h"
31
32unsigned int wcn36xx_dbg_mask;
33module_param_named(debug_mask, wcn36xx_dbg_mask, uint, 0644);
34MODULE_PARM_DESC(debug_mask, "Debugging mask");
35
36#define CHAN2G(_freq, _idx) { \
37 .band = NL80211_BAND_2GHZ, \
38 .center_freq = (_freq), \
39 .hw_value = (_idx), \
40 .max_power = 25, \
41}
42
43#define CHAN5G(_freq, _idx, _phy_val) { \
44 .band = NL80211_BAND_5GHZ, \
45 .center_freq = (_freq), \
46 .hw_value = (_phy_val) << HW_VALUE_PHY_SHIFT | HW_VALUE_CHANNEL(_idx), \
47 .max_power = 25, \
48}
49
50
51
52static struct ieee80211_channel wcn_2ghz_channels[] = {
53 CHAN2G(2412, 1),
54 CHAN2G(2417, 2),
55 CHAN2G(2422, 3),
56 CHAN2G(2427, 4),
57 CHAN2G(2432, 5),
58 CHAN2G(2437, 6),
59 CHAN2G(2442, 7),
60 CHAN2G(2447, 8),
61 CHAN2G(2452, 9),
62 CHAN2G(2457, 10),
63 CHAN2G(2462, 11),
64 CHAN2G(2467, 12),
65 CHAN2G(2472, 13),
66 CHAN2G(2484, 14)
67
68};
69
70static struct ieee80211_channel wcn_5ghz_channels[] = {
71 CHAN5G(5180, 36, PHY_QUADRUPLE_CHANNEL_20MHZ_LOW_40MHZ_LOW),
72 CHAN5G(5200, 40, PHY_QUADRUPLE_CHANNEL_20MHZ_HIGH_40MHZ_LOW),
73 CHAN5G(5220, 44, PHY_QUADRUPLE_CHANNEL_20MHZ_LOW_40MHZ_HIGH),
74 CHAN5G(5240, 48, PHY_QUADRUPLE_CHANNEL_20MHZ_HIGH_40MHZ_HIGH),
75 CHAN5G(5260, 52, PHY_QUADRUPLE_CHANNEL_20MHZ_LOW_40MHZ_LOW),
76 CHAN5G(5280, 56, PHY_QUADRUPLE_CHANNEL_20MHZ_HIGH_40MHZ_LOW),
77 CHAN5G(5300, 60, PHY_QUADRUPLE_CHANNEL_20MHZ_LOW_40MHZ_HIGH),
78 CHAN5G(5320, 64, PHY_QUADRUPLE_CHANNEL_20MHZ_HIGH_40MHZ_HIGH),
79 CHAN5G(5500, 100, PHY_QUADRUPLE_CHANNEL_20MHZ_LOW_40MHZ_LOW),
80 CHAN5G(5520, 104, PHY_QUADRUPLE_CHANNEL_20MHZ_HIGH_40MHZ_LOW),
81 CHAN5G(5540, 108, PHY_QUADRUPLE_CHANNEL_20MHZ_LOW_40MHZ_HIGH),
82 CHAN5G(5560, 112, PHY_QUADRUPLE_CHANNEL_20MHZ_HIGH_40MHZ_HIGH),
83 CHAN5G(5580, 116, PHY_QUADRUPLE_CHANNEL_20MHZ_LOW_40MHZ_LOW),
84 CHAN5G(5600, 120, PHY_QUADRUPLE_CHANNEL_20MHZ_HIGH_40MHZ_LOW),
85 CHAN5G(5620, 124, PHY_QUADRUPLE_CHANNEL_20MHZ_LOW_40MHZ_HIGH),
86 CHAN5G(5640, 128, PHY_QUADRUPLE_CHANNEL_20MHZ_HIGH_40MHZ_HIGH),
87 CHAN5G(5660, 132, PHY_QUADRUPLE_CHANNEL_20MHZ_LOW_40MHZ_LOW),
88 CHAN5G(5700, 140, PHY_QUADRUPLE_CHANNEL_20MHZ_LOW_40MHZ_HIGH),
89 CHAN5G(5745, 149, PHY_QUADRUPLE_CHANNEL_20MHZ_LOW_40MHZ_LOW),
90 CHAN5G(5765, 153, PHY_QUADRUPLE_CHANNEL_20MHZ_HIGH_40MHZ_LOW),
91 CHAN5G(5785, 157, PHY_QUADRUPLE_CHANNEL_20MHZ_LOW_40MHZ_HIGH),
92 CHAN5G(5805, 161, PHY_QUADRUPLE_CHANNEL_20MHZ_HIGH_40MHZ_HIGH),
93 CHAN5G(5825, 165, 0)
94};
95
96#define RATE(_bitrate, _hw_rate, _flags) { \
97 .bitrate = (_bitrate), \
98 .flags = (_flags), \
99 .hw_value = (_hw_rate), \
100 .hw_value_short = (_hw_rate) \
101}
102
103static struct ieee80211_rate wcn_2ghz_rates[] = {
104 RATE(10, HW_RATE_INDEX_1MBPS, 0),
105 RATE(20, HW_RATE_INDEX_2MBPS, IEEE80211_RATE_SHORT_PREAMBLE),
106 RATE(55, HW_RATE_INDEX_5_5MBPS, IEEE80211_RATE_SHORT_PREAMBLE),
107 RATE(110, HW_RATE_INDEX_11MBPS, IEEE80211_RATE_SHORT_PREAMBLE),
108 RATE(60, HW_RATE_INDEX_6MBPS, 0),
109 RATE(90, HW_RATE_INDEX_9MBPS, 0),
110 RATE(120, HW_RATE_INDEX_12MBPS, 0),
111 RATE(180, HW_RATE_INDEX_18MBPS, 0),
112 RATE(240, HW_RATE_INDEX_24MBPS, 0),
113 RATE(360, HW_RATE_INDEX_36MBPS, 0),
114 RATE(480, HW_RATE_INDEX_48MBPS, 0),
115 RATE(540, HW_RATE_INDEX_54MBPS, 0)
116};
117
118static struct ieee80211_rate wcn_5ghz_rates[] = {
119 RATE(60, HW_RATE_INDEX_6MBPS, 0),
120 RATE(90, HW_RATE_INDEX_9MBPS, 0),
121 RATE(120, HW_RATE_INDEX_12MBPS, 0),
122 RATE(180, HW_RATE_INDEX_18MBPS, 0),
123 RATE(240, HW_RATE_INDEX_24MBPS, 0),
124 RATE(360, HW_RATE_INDEX_36MBPS, 0),
125 RATE(480, HW_RATE_INDEX_48MBPS, 0),
126 RATE(540, HW_RATE_INDEX_54MBPS, 0)
127};
128
129static struct ieee80211_supported_band wcn_band_2ghz = {
130 .channels = wcn_2ghz_channels,
131 .n_channels = ARRAY_SIZE(wcn_2ghz_channels),
132 .bitrates = wcn_2ghz_rates,
133 .n_bitrates = ARRAY_SIZE(wcn_2ghz_rates),
134 .ht_cap = {
135 .cap = IEEE80211_HT_CAP_GRN_FLD |
136 IEEE80211_HT_CAP_SGI_20 |
137 IEEE80211_HT_CAP_DSSSCCK40 |
138 IEEE80211_HT_CAP_LSIG_TXOP_PROT,
139 .ht_supported = true,
140 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K,
141 .ampdu_density = IEEE80211_HT_MPDU_DENSITY_16,
142 .mcs = {
143 .rx_mask = { 0xff, 0, 0, 0, 0, 0, 0, 0, 0, 0, },
144 .rx_highest = cpu_to_le16(72),
145 .tx_params = IEEE80211_HT_MCS_TX_DEFINED,
146 }
147 }
148};
149
150static struct ieee80211_supported_band wcn_band_5ghz = {
151 .channels = wcn_5ghz_channels,
152 .n_channels = ARRAY_SIZE(wcn_5ghz_channels),
153 .bitrates = wcn_5ghz_rates,
154 .n_bitrates = ARRAY_SIZE(wcn_5ghz_rates),
155 .ht_cap = {
156 .cap = IEEE80211_HT_CAP_GRN_FLD |
157 IEEE80211_HT_CAP_SGI_20 |
158 IEEE80211_HT_CAP_DSSSCCK40 |
159 IEEE80211_HT_CAP_LSIG_TXOP_PROT |
160 IEEE80211_HT_CAP_SGI_40 |
161 IEEE80211_HT_CAP_SUP_WIDTH_20_40,
162 .ht_supported = true,
163 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K,
164 .ampdu_density = IEEE80211_HT_MPDU_DENSITY_16,
165 .mcs = {
166 .rx_mask = { 0xff, 0, 0, 0, 0, 0, 0, 0, 0, 0, },
167 .rx_highest = cpu_to_le16(150),
168 .tx_params = IEEE80211_HT_MCS_TX_DEFINED,
169 }
170 }
171};
172
173#ifdef CONFIG_PM
174
175static const struct wiphy_wowlan_support wowlan_support = {
176 .flags = WIPHY_WOWLAN_ANY |
177 WIPHY_WOWLAN_MAGIC_PKT |
178 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY
179};
180
181#endif
182
183static inline u8 get_sta_index(struct ieee80211_vif *vif,
184 struct wcn36xx_sta *sta_priv)
185{
186 return NL80211_IFTYPE_STATION == vif->type ?
187 sta_priv->bss_sta_index :
188 sta_priv->sta_index;
189}
190
191static const char * const wcn36xx_caps_names[] = {
192 "MCC",
193 "P2P",
194 "DOT11AC",
195 "SLM_SESSIONIZATION",
196 "DOT11AC_OPMODE",
197 "SAP32STA",
198 "TDLS",
199 "P2P_GO_NOA_DECOUPLE_INIT_SCAN",
200 "WLANACTIVE_OFFLOAD",
201 "BEACON_OFFLOAD",
202 "SCAN_OFFLOAD",
203 "ROAM_OFFLOAD",
204 "BCN_MISS_OFFLOAD",
205 "STA_POWERSAVE",
206 "STA_ADVANCED_PWRSAVE",
207 "AP_UAPSD",
208 "AP_DFS",
209 "BLOCKACK",
210 "PHY_ERR",
211 "BCN_FILTER",
212 "RTT",
213 "RATECTRL",
214 "WOW",
215 "WLAN_ROAM_SCAN_OFFLOAD",
216 "SPECULATIVE_PS_POLL",
217 "SCAN_SCH",
218 "IBSS_HEARTBEAT_OFFLOAD",
219 "WLAN_SCAN_OFFLOAD",
220 "WLAN_PERIODIC_TX_PTRN",
221 "ADVANCE_TDLS",
222 "BATCH_SCAN",
223 "FW_IN_TX_PATH",
224 "EXTENDED_NSOFFLOAD_SLOT",
225 "CH_SWITCH_V1",
226 "HT40_OBSS_SCAN",
227 "UPDATE_CHANNEL_LIST",
228 "WLAN_MCADDR_FLT",
229 "WLAN_CH144",
230 "NAN",
231 "TDLS_SCAN_COEXISTENCE",
232 "LINK_LAYER_STATS_MEAS",
233 "MU_MIMO",
234 "EXTENDED_SCAN",
235 "DYNAMIC_WMM_PS",
236 "MAC_SPOOFED_SCAN",
237 "BMU_ERROR_GENERIC_RECOVERY",
238 "DISA",
239 "FW_STATS",
240 "WPS_PRBRSP_TMPL",
241 "BCN_IE_FLT_DELTA",
242 "TDLS_OFF_CHANNEL",
243 "RTT3",
244 "MGMT_FRAME_LOGGING",
245 "ENHANCED_TXBD_COMPLETION",
246 "LOGGING_ENHANCEMENT",
247 "EXT_SCAN_ENHANCED",
248 "MEMORY_DUMP_SUPPORTED",
249 "PER_PKT_STATS_SUPPORTED",
250 "EXT_LL_STAT",
251 "WIFI_CONFIG",
252 "ANTENNA_DIVERSITY_SELECTION",
253};
254
255static const char *wcn36xx_get_cap_name(enum place_holder_in_cap_bitmap x)
256{
257 if (x >= ARRAY_SIZE(wcn36xx_caps_names))
258 return "UNKNOWN";
259 return wcn36xx_caps_names[x];
260}
261
262static void wcn36xx_feat_caps_info(struct wcn36xx *wcn)
263{
264 int i;
265
266 for (i = 0; i < MAX_FEATURE_SUPPORTED; i++) {
267 if (get_feat_caps(wcn->fw_feat_caps, i))
268 wcn36xx_dbg(WCN36XX_DBG_MAC, "FW Cap %s\n", wcn36xx_get_cap_name(i));
269 }
270}
271
272static int wcn36xx_start(struct ieee80211_hw *hw)
273{
274 struct wcn36xx *wcn = hw->priv;
275 int ret;
276
277 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac start\n");
278
279
280 ret = wcn36xx_smd_open(wcn);
281 if (ret) {
282 wcn36xx_err("Failed to open smd channel: %d\n", ret);
283 goto out_err;
284 }
285
286
287 ret = wcn36xx_dxe_allocate_mem_pools(wcn);
288 if (ret) {
289 wcn36xx_err("Failed to alloc DXE mempool: %d\n", ret);
290 goto out_smd_close;
291 }
292
293 ret = wcn36xx_dxe_alloc_ctl_blks(wcn);
294 if (ret) {
295 wcn36xx_err("Failed to alloc DXE ctl blocks: %d\n", ret);
296 goto out_free_dxe_pool;
297 }
298
299 ret = wcn36xx_smd_load_nv(wcn);
300 if (ret) {
301 wcn36xx_err("Failed to push NV to chip\n");
302 goto out_free_dxe_ctl;
303 }
304
305 ret = wcn36xx_smd_start(wcn);
306 if (ret) {
307 wcn36xx_err("Failed to start chip\n");
308 goto out_free_dxe_ctl;
309 }
310
311 if (!wcn36xx_is_fw_version(wcn, 1, 2, 2, 24)) {
312 ret = wcn36xx_smd_feature_caps_exchange(wcn);
313 if (ret)
314 wcn36xx_warn("Exchange feature caps failed\n");
315 else
316 wcn36xx_feat_caps_info(wcn);
317 }
318
319
320 ret = wcn36xx_dxe_init(wcn);
321 if (ret) {
322 wcn36xx_err("DXE init failed\n");
323 goto out_smd_stop;
324 }
325
326 wcn36xx_debugfs_init(wcn);
327
328 INIT_LIST_HEAD(&wcn->vif_list);
329 spin_lock_init(&wcn->dxe_lock);
330
331 return 0;
332
333out_smd_stop:
334 wcn36xx_smd_stop(wcn);
335out_free_dxe_ctl:
336 wcn36xx_dxe_free_ctl_blks(wcn);
337out_free_dxe_pool:
338 wcn36xx_dxe_free_mem_pools(wcn);
339out_smd_close:
340 wcn36xx_smd_close(wcn);
341out_err:
342 return ret;
343}
344
345static void wcn36xx_stop(struct ieee80211_hw *hw)
346{
347 struct wcn36xx *wcn = hw->priv;
348
349 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac stop\n");
350
351 mutex_lock(&wcn->scan_lock);
352 if (wcn->scan_req) {
353 struct cfg80211_scan_info scan_info = {
354 .aborted = true,
355 };
356
357 ieee80211_scan_completed(wcn->hw, &scan_info);
358 }
359 wcn->scan_req = NULL;
360 mutex_unlock(&wcn->scan_lock);
361
362 wcn36xx_debugfs_exit(wcn);
363 wcn36xx_smd_stop(wcn);
364 wcn36xx_dxe_deinit(wcn);
365 wcn36xx_smd_close(wcn);
366
367 wcn36xx_dxe_free_mem_pools(wcn);
368 wcn36xx_dxe_free_ctl_blks(wcn);
369}
370
371static void wcn36xx_change_ps(struct wcn36xx *wcn, bool enable)
372{
373 struct ieee80211_vif *vif = NULL;
374 struct wcn36xx_vif *tmp;
375
376 list_for_each_entry(tmp, &wcn->vif_list, list) {
377 vif = wcn36xx_priv_to_vif(tmp);
378 if (enable && !wcn->sw_scan) {
379 if (vif->bss_conf.ps)
380 wcn36xx_pmc_enter_bmps_state(wcn, vif);
381 } else {
382 wcn36xx_pmc_exit_bmps_state(wcn, vif);
383 }
384 }
385}
386
387static void wcn36xx_change_opchannel(struct wcn36xx *wcn, int ch)
388{
389 struct ieee80211_vif *vif = NULL;
390 struct wcn36xx_vif *tmp;
391
392 list_for_each_entry(tmp, &wcn->vif_list, list) {
393 vif = wcn36xx_priv_to_vif(tmp);
394 wcn36xx_smd_switch_channel(wcn, vif, ch);
395 }
396}
397
398static int wcn36xx_config(struct ieee80211_hw *hw, u32 changed)
399{
400 struct wcn36xx *wcn = hw->priv;
401
402 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac config changed 0x%08x\n", changed);
403
404 mutex_lock(&wcn->conf_mutex);
405
406 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
407 int ch = WCN36XX_HW_CHANNEL(wcn);
408 wcn36xx_dbg(WCN36XX_DBG_MAC, "wcn36xx_config channel switch=%d\n",
409 ch);
410
411 if (wcn->sw_scan_opchannel == ch && wcn->sw_scan_channel) {
412
413
414
415
416 wcn36xx_smd_finish_scan(wcn, HAL_SYS_MODE_SCAN,
417 wcn->sw_scan_vif);
418 wcn->sw_scan_channel = 0;
419 } else if (wcn->sw_scan) {
420
421
422
423 wcn36xx_smd_init_scan(wcn, HAL_SYS_MODE_SCAN,
424 wcn->sw_scan_vif);
425 wcn36xx_smd_start_scan(wcn, ch);
426 wcn->sw_scan_channel = ch;
427 } else {
428 wcn36xx_change_opchannel(wcn, ch);
429 }
430 }
431
432 if (changed & IEEE80211_CONF_CHANGE_PS)
433 wcn36xx_change_ps(wcn, hw->conf.flags & IEEE80211_CONF_PS);
434
435 mutex_unlock(&wcn->conf_mutex);
436
437 return 0;
438}
439
440static void wcn36xx_configure_filter(struct ieee80211_hw *hw,
441 unsigned int changed,
442 unsigned int *total, u64 multicast)
443{
444 struct wcn36xx_hal_rcv_flt_mc_addr_list_type *fp;
445 struct wcn36xx *wcn = hw->priv;
446 struct wcn36xx_vif *tmp;
447 struct ieee80211_vif *vif = NULL;
448
449 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac configure filter\n");
450
451 mutex_lock(&wcn->conf_mutex);
452
453 *total &= FIF_ALLMULTI;
454
455 fp = (void *)(unsigned long)multicast;
456 list_for_each_entry(tmp, &wcn->vif_list, list) {
457 vif = wcn36xx_priv_to_vif(tmp);
458
459
460 if (*total & FIF_ALLMULTI)
461 wcn36xx_smd_set_mc_list(wcn, vif, NULL);
462 else if (NL80211_IFTYPE_STATION == vif->type && tmp->sta_assoc)
463 wcn36xx_smd_set_mc_list(wcn, vif, fp);
464 }
465
466 mutex_unlock(&wcn->conf_mutex);
467 kfree(fp);
468}
469
470static u64 wcn36xx_prepare_multicast(struct ieee80211_hw *hw,
471 struct netdev_hw_addr_list *mc_list)
472{
473 struct wcn36xx_hal_rcv_flt_mc_addr_list_type *fp;
474 struct netdev_hw_addr *ha;
475
476 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac prepare multicast list\n");
477 fp = kzalloc(sizeof(*fp), GFP_ATOMIC);
478 if (!fp) {
479 wcn36xx_err("Out of memory setting filters.\n");
480 return 0;
481 }
482
483 fp->mc_addr_count = 0;
484
485 if (netdev_hw_addr_list_count(mc_list) <=
486 WCN36XX_HAL_MAX_NUM_MULTICAST_ADDRESS) {
487 netdev_hw_addr_list_for_each(ha, mc_list) {
488 memcpy(fp->mc_addr[fp->mc_addr_count],
489 ha->addr, ETH_ALEN);
490 fp->mc_addr_count++;
491 }
492 }
493
494 return (u64)(unsigned long)fp;
495}
496
497static void wcn36xx_tx(struct ieee80211_hw *hw,
498 struct ieee80211_tx_control *control,
499 struct sk_buff *skb)
500{
501 struct wcn36xx *wcn = hw->priv;
502 struct wcn36xx_sta *sta_priv = NULL;
503
504 if (control->sta)
505 sta_priv = wcn36xx_sta_to_priv(control->sta);
506
507 if (wcn36xx_start_tx(wcn, sta_priv, skb))
508 ieee80211_free_txskb(wcn->hw, skb);
509}
510
511static int wcn36xx_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
512 struct ieee80211_vif *vif,
513 struct ieee80211_sta *sta,
514 struct ieee80211_key_conf *key_conf)
515{
516 struct wcn36xx *wcn = hw->priv;
517 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
518 struct wcn36xx_sta *sta_priv = sta ? wcn36xx_sta_to_priv(sta) : NULL;
519 int ret = 0;
520 u8 key[WLAN_MAX_KEY_LEN];
521
522 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac80211 set key\n");
523 wcn36xx_dbg(WCN36XX_DBG_MAC, "Key: cmd=0x%x algo:0x%x, id:%d, len:%d flags 0x%x\n",
524 cmd, key_conf->cipher, key_conf->keyidx,
525 key_conf->keylen, key_conf->flags);
526 wcn36xx_dbg_dump(WCN36XX_DBG_MAC, "KEY: ",
527 key_conf->key,
528 key_conf->keylen);
529
530 mutex_lock(&wcn->conf_mutex);
531
532 switch (key_conf->cipher) {
533 case WLAN_CIPHER_SUITE_WEP40:
534 vif_priv->encrypt_type = WCN36XX_HAL_ED_WEP40;
535 break;
536 case WLAN_CIPHER_SUITE_WEP104:
537 vif_priv->encrypt_type = WCN36XX_HAL_ED_WEP104;
538 break;
539 case WLAN_CIPHER_SUITE_CCMP:
540 vif_priv->encrypt_type = WCN36XX_HAL_ED_CCMP;
541 break;
542 case WLAN_CIPHER_SUITE_TKIP:
543 vif_priv->encrypt_type = WCN36XX_HAL_ED_TKIP;
544 break;
545 default:
546 wcn36xx_err("Unsupported key type 0x%x\n",
547 key_conf->cipher);
548 ret = -EOPNOTSUPP;
549 goto out;
550 }
551
552 switch (cmd) {
553 case SET_KEY:
554 if (WCN36XX_HAL_ED_TKIP == vif_priv->encrypt_type) {
555
556
557
558
559
560
561
562 memcpy(key, key_conf->key, 16);
563 memcpy(key + 16, key_conf->key + 24, 8);
564 memcpy(key + 24, key_conf->key + 16, 8);
565 } else {
566 memcpy(key, key_conf->key, key_conf->keylen);
567 }
568
569 if (IEEE80211_KEY_FLAG_PAIRWISE & key_conf->flags) {
570 sta_priv->is_data_encrypted = true;
571
572 if (NL80211_IFTYPE_STATION == vif->type)
573 wcn36xx_smd_config_bss(wcn,
574 vif,
575 sta,
576 sta->addr,
577 true);
578
579 wcn36xx_smd_set_stakey(wcn,
580 vif_priv->encrypt_type,
581 key_conf->keyidx,
582 key_conf->keylen,
583 key,
584 get_sta_index(vif, sta_priv));
585 } else {
586 wcn36xx_smd_set_bsskey(wcn,
587 vif_priv->encrypt_type,
588 vif_priv->bss_index,
589 key_conf->keyidx,
590 key_conf->keylen,
591 key);
592
593 if ((WLAN_CIPHER_SUITE_WEP40 == key_conf->cipher) ||
594 (WLAN_CIPHER_SUITE_WEP104 == key_conf->cipher)) {
595 list_for_each_entry(sta_priv,
596 &vif_priv->sta_list, list) {
597 sta_priv->is_data_encrypted = true;
598 wcn36xx_smd_set_stakey(wcn,
599 vif_priv->encrypt_type,
600 key_conf->keyidx,
601 key_conf->keylen,
602 key,
603 get_sta_index(vif, sta_priv));
604 }
605 }
606 }
607
608
609
610
611
612
613
614 if (vif->type == NL80211_IFTYPE_STATION)
615 vif_priv->allow_bmps = true;
616 break;
617 case DISABLE_KEY:
618 if (!(IEEE80211_KEY_FLAG_PAIRWISE & key_conf->flags)) {
619 if (vif_priv->bss_index != WCN36XX_HAL_BSS_INVALID_IDX)
620 wcn36xx_smd_remove_bsskey(wcn,
621 vif_priv->encrypt_type,
622 vif_priv->bss_index,
623 key_conf->keyidx);
624
625 vif_priv->encrypt_type = WCN36XX_HAL_ED_NONE;
626 } else {
627 sta_priv->is_data_encrypted = false;
628
629 if (sta_priv->aid)
630 wcn36xx_smd_remove_stakey(wcn,
631 vif_priv->encrypt_type,
632 key_conf->keyidx,
633 get_sta_index(vif, sta_priv));
634 }
635 break;
636 default:
637 wcn36xx_err("Unsupported key cmd 0x%x\n", cmd);
638 ret = -EOPNOTSUPP;
639 goto out;
640 }
641
642out:
643 mutex_unlock(&wcn->conf_mutex);
644
645 return ret;
646}
647
648static int wcn36xx_hw_scan(struct ieee80211_hw *hw,
649 struct ieee80211_vif *vif,
650 struct ieee80211_scan_request *hw_req)
651{
652 struct wcn36xx *wcn = hw->priv;
653 int i;
654
655 if (!get_feat_caps(wcn->fw_feat_caps, SCAN_OFFLOAD)) {
656
657 return 1;
658 }
659
660
661
662
663 for (i = 0; i < hw_req->req.n_channels; i++) {
664 if (hw_req->req.channels[i]->band != NL80211_BAND_2GHZ)
665 return 1;
666 }
667
668 mutex_lock(&wcn->scan_lock);
669 if (wcn->scan_req) {
670 mutex_unlock(&wcn->scan_lock);
671 return -EBUSY;
672 }
673
674 wcn->scan_aborted = false;
675 wcn->scan_req = &hw_req->req;
676
677 mutex_unlock(&wcn->scan_lock);
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 }
696}
697
698static void wcn36xx_sw_scan_start(struct ieee80211_hw *hw,
699 struct ieee80211_vif *vif,
700 const u8 *mac_addr)
701{
702 struct wcn36xx *wcn = hw->priv;
703 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
704
705 wcn->sw_scan = true;
706 wcn->sw_scan_vif = vif;
707 wcn->sw_scan_channel = 0;
708 if (vif_priv->sta_assoc)
709 wcn->sw_scan_opchannel = WCN36XX_HW_CHANNEL(wcn);
710 else
711 wcn->sw_scan_opchannel = 0;
712}
713
714static void wcn36xx_sw_scan_complete(struct ieee80211_hw *hw,
715 struct ieee80211_vif *vif)
716{
717 struct wcn36xx *wcn = hw->priv;
718
719
720 wcn36xx_smd_finish_scan(wcn, HAL_SYS_MODE_SCAN, wcn->sw_scan_vif);
721 wcn->sw_scan = false;
722 wcn->sw_scan_opchannel = 0;
723}
724
725static void wcn36xx_update_allowed_rates(struct ieee80211_sta *sta,
726 enum nl80211_band band)
727{
728 int i, size;
729 u16 *rates_table;
730 struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(sta);
731 u32 rates = sta->supp_rates[band];
732
733 memset(&sta_priv->supported_rates, 0,
734 sizeof(sta_priv->supported_rates));
735 sta_priv->supported_rates.op_rate_mode = STA_11n;
736
737 size = ARRAY_SIZE(sta_priv->supported_rates.dsss_rates);
738 rates_table = sta_priv->supported_rates.dsss_rates;
739 if (band == NL80211_BAND_2GHZ) {
740 for (i = 0; i < size; i++) {
741 if (rates & 0x01) {
742 rates_table[i] = wcn_2ghz_rates[i].hw_value;
743 rates = rates >> 1;
744 }
745 }
746 }
747
748 size = ARRAY_SIZE(sta_priv->supported_rates.ofdm_rates);
749 rates_table = sta_priv->supported_rates.ofdm_rates;
750 for (i = 0; i < size; i++) {
751 if (rates & 0x01) {
752 rates_table[i] = wcn_5ghz_rates[i].hw_value;
753 rates = rates >> 1;
754 }
755 }
756
757 if (sta->ht_cap.ht_supported) {
758 BUILD_BUG_ON(sizeof(sta->ht_cap.mcs.rx_mask) >
759 sizeof(sta_priv->supported_rates.supported_mcs_set));
760 memcpy(sta_priv->supported_rates.supported_mcs_set,
761 sta->ht_cap.mcs.rx_mask,
762 sizeof(sta->ht_cap.mcs.rx_mask));
763 }
764
765 if (sta->vht_cap.vht_supported) {
766 sta_priv->supported_rates.op_rate_mode = STA_11ac;
767 sta_priv->supported_rates.vht_rx_mcs_map =
768 sta->vht_cap.vht_mcs.rx_mcs_map;
769 sta_priv->supported_rates.vht_tx_mcs_map =
770 sta->vht_cap.vht_mcs.tx_mcs_map;
771 }
772}
773
774void wcn36xx_set_default_rates(struct wcn36xx_hal_supported_rates *rates)
775{
776 u16 ofdm_rates[WCN36XX_HAL_NUM_OFDM_RATES] = {
777 HW_RATE_INDEX_6MBPS,
778 HW_RATE_INDEX_9MBPS,
779 HW_RATE_INDEX_12MBPS,
780 HW_RATE_INDEX_18MBPS,
781 HW_RATE_INDEX_24MBPS,
782 HW_RATE_INDEX_36MBPS,
783 HW_RATE_INDEX_48MBPS,
784 HW_RATE_INDEX_54MBPS
785 };
786 u16 dsss_rates[WCN36XX_HAL_NUM_DSSS_RATES] = {
787 HW_RATE_INDEX_1MBPS,
788 HW_RATE_INDEX_2MBPS,
789 HW_RATE_INDEX_5_5MBPS,
790 HW_RATE_INDEX_11MBPS
791 };
792
793 rates->op_rate_mode = STA_11n;
794 memcpy(rates->dsss_rates, dsss_rates,
795 sizeof(*dsss_rates) * WCN36XX_HAL_NUM_DSSS_RATES);
796 memcpy(rates->ofdm_rates, ofdm_rates,
797 sizeof(*ofdm_rates) * WCN36XX_HAL_NUM_OFDM_RATES);
798 rates->supported_mcs_set[0] = 0xFF;
799}
800
801void wcn36xx_set_default_rates_v1(struct wcn36xx_hal_supported_rates_v1 *rates)
802{
803 rates->op_rate_mode = STA_11ac;
804 rates->vht_rx_mcs_map = IEEE80211_VHT_MCS_SUPPORT_0_9;
805 rates->vht_tx_mcs_map = IEEE80211_VHT_MCS_SUPPORT_0_9;
806}
807
808static void wcn36xx_bss_info_changed(struct ieee80211_hw *hw,
809 struct ieee80211_vif *vif,
810 struct ieee80211_bss_conf *bss_conf,
811 u32 changed)
812{
813 struct wcn36xx *wcn = hw->priv;
814 struct sk_buff *skb = NULL;
815 u16 tim_off, tim_len;
816 enum wcn36xx_hal_link_state link_state;
817 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
818
819 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss info changed vif %p changed 0x%08x\n",
820 vif, changed);
821
822 mutex_lock(&wcn->conf_mutex);
823
824 if (changed & BSS_CHANGED_BEACON_INFO) {
825 wcn36xx_dbg(WCN36XX_DBG_MAC,
826 "mac bss changed dtim period %d\n",
827 bss_conf->dtim_period);
828
829 vif_priv->dtim_period = bss_conf->dtim_period;
830 }
831
832 if (changed & BSS_CHANGED_BSSID) {
833 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss changed_bssid %pM\n",
834 bss_conf->bssid);
835
836 if (!is_zero_ether_addr(bss_conf->bssid)) {
837 vif_priv->is_joining = true;
838 vif_priv->bss_index = WCN36XX_HAL_BSS_INVALID_IDX;
839 wcn36xx_smd_set_link_st(wcn, bss_conf->bssid, vif->addr,
840 WCN36XX_HAL_LINK_PREASSOC_STATE);
841 wcn36xx_smd_join(wcn, bss_conf->bssid,
842 vif->addr, WCN36XX_HW_CHANNEL(wcn));
843 wcn36xx_smd_config_bss(wcn, vif, NULL,
844 bss_conf->bssid, false);
845 } else {
846 vif_priv->is_joining = false;
847 wcn36xx_smd_delete_bss(wcn, vif);
848 wcn36xx_smd_set_link_st(wcn, bss_conf->bssid, vif->addr,
849 WCN36XX_HAL_LINK_IDLE_STATE);
850 vif_priv->encrypt_type = WCN36XX_HAL_ED_NONE;
851 }
852 }
853
854 if (changed & BSS_CHANGED_SSID) {
855 wcn36xx_dbg(WCN36XX_DBG_MAC,
856 "mac bss changed ssid\n");
857 wcn36xx_dbg_dump(WCN36XX_DBG_MAC, "ssid ",
858 bss_conf->ssid, bss_conf->ssid_len);
859
860 vif_priv->ssid.length = bss_conf->ssid_len;
861 memcpy(&vif_priv->ssid.ssid,
862 bss_conf->ssid,
863 bss_conf->ssid_len);
864 }
865
866 if (changed & BSS_CHANGED_ASSOC) {
867 vif_priv->is_joining = false;
868 if (bss_conf->assoc) {
869 struct ieee80211_sta *sta;
870 struct wcn36xx_sta *sta_priv;
871
872 wcn36xx_dbg(WCN36XX_DBG_MAC,
873 "mac assoc bss %pM vif %pM AID=%d\n",
874 bss_conf->bssid,
875 vif->addr,
876 bss_conf->aid);
877
878 vif_priv->sta_assoc = true;
879
880
881
882
883
884
885
886 sta = ieee80211_find_sta(vif, bss_conf->bssid);
887 if (!sta) {
888 wcn36xx_err("sta %pM is not found\n",
889 bss_conf->bssid);
890 goto out;
891 }
892 sta_priv = wcn36xx_sta_to_priv(sta);
893
894 wcn36xx_update_allowed_rates(sta, WCN36XX_BAND(wcn));
895
896 wcn36xx_smd_set_link_st(wcn, bss_conf->bssid,
897 vif->addr,
898 WCN36XX_HAL_LINK_POSTASSOC_STATE);
899 wcn36xx_smd_config_bss(wcn, vif, sta,
900 bss_conf->bssid,
901 true);
902 sta_priv->aid = bss_conf->aid;
903
904
905
906
907 wcn36xx_smd_config_sta(wcn, vif, sta);
908 wcn36xx_enable_keep_alive_null_packet(wcn, vif);
909 } else {
910 wcn36xx_dbg(WCN36XX_DBG_MAC,
911 "disassociated bss %pM vif %pM AID=%d\n",
912 bss_conf->bssid,
913 vif->addr,
914 bss_conf->aid);
915 vif_priv->sta_assoc = false;
916 vif_priv->allow_bmps = false;
917 wcn36xx_smd_set_link_st(wcn,
918 bss_conf->bssid,
919 vif->addr,
920 WCN36XX_HAL_LINK_IDLE_STATE);
921 }
922 }
923
924 if (changed & BSS_CHANGED_AP_PROBE_RESP) {
925 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss changed ap probe resp\n");
926 skb = ieee80211_proberesp_get(hw, vif);
927 if (!skb) {
928 wcn36xx_err("failed to alloc probereq skb\n");
929 goto out;
930 }
931
932 wcn36xx_smd_update_proberesp_tmpl(wcn, vif, skb);
933 dev_kfree_skb(skb);
934 }
935
936 if (changed & BSS_CHANGED_BEACON_ENABLED ||
937 changed & BSS_CHANGED_BEACON) {
938 wcn36xx_dbg(WCN36XX_DBG_MAC,
939 "mac bss changed beacon enabled %d\n",
940 bss_conf->enable_beacon);
941
942 if (bss_conf->enable_beacon) {
943 vif_priv->dtim_period = bss_conf->dtim_period;
944 vif_priv->bss_index = WCN36XX_HAL_BSS_INVALID_IDX;
945 wcn36xx_smd_config_bss(wcn, vif, NULL,
946 vif->addr, false);
947 skb = ieee80211_beacon_get_tim(hw, vif, &tim_off,
948 &tim_len);
949 if (!skb) {
950 wcn36xx_err("failed to alloc beacon skb\n");
951 goto out;
952 }
953 wcn36xx_smd_send_beacon(wcn, vif, skb, tim_off, 0);
954 dev_kfree_skb(skb);
955
956 if (vif->type == NL80211_IFTYPE_ADHOC ||
957 vif->type == NL80211_IFTYPE_MESH_POINT)
958 link_state = WCN36XX_HAL_LINK_IBSS_STATE;
959 else
960 link_state = WCN36XX_HAL_LINK_AP_STATE;
961
962 wcn36xx_smd_set_link_st(wcn, vif->addr, vif->addr,
963 link_state);
964 } else {
965 wcn36xx_smd_delete_bss(wcn, vif);
966 wcn36xx_smd_set_link_st(wcn, vif->addr, vif->addr,
967 WCN36XX_HAL_LINK_IDLE_STATE);
968 }
969 }
970out:
971
972 mutex_unlock(&wcn->conf_mutex);
973}
974
975
976static int wcn36xx_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
977{
978 struct wcn36xx *wcn = hw->priv;
979 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac set RTS threshold %d\n", value);
980
981 mutex_lock(&wcn->conf_mutex);
982 wcn36xx_smd_update_cfg(wcn, WCN36XX_HAL_CFG_RTS_THRESHOLD, value);
983 mutex_unlock(&wcn->conf_mutex);
984
985 return 0;
986}
987
988static void wcn36xx_remove_interface(struct ieee80211_hw *hw,
989 struct ieee80211_vif *vif)
990{
991 struct wcn36xx *wcn = hw->priv;
992 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
993 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac remove interface vif %p\n", vif);
994
995 mutex_lock(&wcn->conf_mutex);
996
997 list_del(&vif_priv->list);
998 wcn36xx_smd_delete_sta_self(wcn, vif->addr);
999
1000 mutex_unlock(&wcn->conf_mutex);
1001}
1002
1003static int wcn36xx_add_interface(struct ieee80211_hw *hw,
1004 struct ieee80211_vif *vif)
1005{
1006 struct wcn36xx *wcn = hw->priv;
1007 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
1008
1009 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac add interface vif %p type %d\n",
1010 vif, vif->type);
1011
1012 if (!(NL80211_IFTYPE_STATION == vif->type ||
1013 NL80211_IFTYPE_AP == vif->type ||
1014 NL80211_IFTYPE_ADHOC == vif->type ||
1015 NL80211_IFTYPE_MESH_POINT == vif->type)) {
1016 wcn36xx_warn("Unsupported interface type requested: %d\n",
1017 vif->type);
1018 return -EOPNOTSUPP;
1019 }
1020
1021 mutex_lock(&wcn->conf_mutex);
1022
1023 vif_priv->bss_index = WCN36XX_HAL_BSS_INVALID_IDX;
1024 INIT_LIST_HEAD(&vif_priv->sta_list);
1025 list_add(&vif_priv->list, &wcn->vif_list);
1026 wcn36xx_smd_add_sta_self(wcn, vif);
1027
1028 mutex_unlock(&wcn->conf_mutex);
1029
1030 return 0;
1031}
1032
1033static int wcn36xx_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1034 struct ieee80211_sta *sta)
1035{
1036 struct wcn36xx *wcn = hw->priv;
1037 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
1038 struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(sta);
1039 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac sta add vif %p sta %pM\n",
1040 vif, sta->addr);
1041
1042 mutex_lock(&wcn->conf_mutex);
1043
1044 spin_lock_init(&sta_priv->ampdu_lock);
1045 sta_priv->vif = vif_priv;
1046 list_add(&sta_priv->list, &vif_priv->sta_list);
1047
1048
1049
1050
1051
1052 if (NL80211_IFTYPE_STATION != vif->type) {
1053 wcn36xx_update_allowed_rates(sta, WCN36XX_BAND(wcn));
1054 sta_priv->aid = sta->aid;
1055 wcn36xx_smd_config_sta(wcn, vif, sta);
1056 }
1057
1058 mutex_unlock(&wcn->conf_mutex);
1059
1060 return 0;
1061}
1062
1063static int wcn36xx_sta_remove(struct ieee80211_hw *hw,
1064 struct ieee80211_vif *vif,
1065 struct ieee80211_sta *sta)
1066{
1067 struct wcn36xx *wcn = hw->priv;
1068 struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(sta);
1069
1070 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac sta remove vif %p sta %pM index %d\n",
1071 vif, sta->addr, sta_priv->sta_index);
1072
1073 mutex_lock(&wcn->conf_mutex);
1074
1075 list_del(&sta_priv->list);
1076 wcn36xx_smd_delete_sta(wcn, sta_priv->sta_index);
1077 sta_priv->vif = NULL;
1078
1079 mutex_unlock(&wcn->conf_mutex);
1080
1081 return 0;
1082}
1083
1084#ifdef CONFIG_PM
1085
1086static struct ieee80211_vif *wcn36xx_get_first_assoc_vif(struct wcn36xx *wcn)
1087{
1088 struct wcn36xx_vif *vif_priv = NULL;
1089 struct ieee80211_vif *vif = NULL;
1090
1091 list_for_each_entry(vif_priv, &wcn->vif_list, list) {
1092 if (vif_priv->sta_assoc) {
1093 vif = wcn36xx_priv_to_vif(vif_priv);
1094 break;
1095 }
1096 }
1097 return vif;
1098}
1099
1100static int wcn36xx_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wow)
1101{
1102 struct wcn36xx *wcn = hw->priv;
1103 struct ieee80211_vif *vif = NULL;
1104 int ret = 0;
1105
1106 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac suspend\n");
1107
1108 mutex_lock(&wcn->conf_mutex);
1109
1110 vif = wcn36xx_get_first_assoc_vif(wcn);
1111 if (vif) {
1112 ret = wcn36xx_smd_arp_offload(wcn, vif, true);
1113 if (ret)
1114 goto out;
1115 ret = wcn36xx_smd_ipv6_ns_offload(wcn, vif, true);
1116 if (ret)
1117 goto out;
1118 ret = wcn36xx_smd_gtk_offload(wcn, vif, true);
1119 if (ret)
1120 goto out;
1121 ret = wcn36xx_smd_set_power_params(wcn, true);
1122 if (ret)
1123 goto out;
1124 ret = wcn36xx_smd_wlan_host_suspend_ind(wcn);
1125 }
1126out:
1127 mutex_unlock(&wcn->conf_mutex);
1128 return ret;
1129}
1130
1131static int wcn36xx_resume(struct ieee80211_hw *hw)
1132{
1133 struct wcn36xx *wcn = hw->priv;
1134 struct ieee80211_vif *vif = NULL;
1135
1136 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac resume\n");
1137
1138 mutex_lock(&wcn->conf_mutex);
1139 vif = wcn36xx_get_first_assoc_vif(wcn);
1140 if (vif) {
1141 wcn36xx_smd_host_resume(wcn);
1142 wcn36xx_smd_set_power_params(wcn, false);
1143 wcn36xx_smd_gtk_offload_get_info(wcn, vif);
1144 wcn36xx_smd_gtk_offload(wcn, vif, false);
1145 wcn36xx_smd_ipv6_ns_offload(wcn, vif, false);
1146 wcn36xx_smd_arp_offload(wcn, vif, false);
1147 }
1148 mutex_unlock(&wcn->conf_mutex);
1149
1150 return 0;
1151}
1152
1153static void wcn36xx_set_rekey_data(struct ieee80211_hw *hw,
1154 struct ieee80211_vif *vif,
1155 struct cfg80211_gtk_rekey_data *data)
1156{
1157 struct wcn36xx *wcn = hw->priv;
1158 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
1159
1160 mutex_lock(&wcn->conf_mutex);
1161
1162 memcpy(vif_priv->rekey_data.kek, data->kek, NL80211_KEK_LEN);
1163 memcpy(vif_priv->rekey_data.kck, data->kck, NL80211_KCK_LEN);
1164 vif_priv->rekey_data.replay_ctr =
1165 cpu_to_le64(be64_to_cpup((__be64 *)data->replay_ctr));
1166 vif_priv->rekey_data.valid = true;
1167
1168 mutex_unlock(&wcn->conf_mutex);
1169}
1170
1171#endif
1172
1173static int wcn36xx_ampdu_action(struct ieee80211_hw *hw,
1174 struct ieee80211_vif *vif,
1175 struct ieee80211_ampdu_params *params)
1176{
1177 struct wcn36xx *wcn = hw->priv;
1178 struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(params->sta);
1179 struct ieee80211_sta *sta = params->sta;
1180 enum ieee80211_ampdu_mlme_action action = params->action;
1181 u16 tid = params->tid;
1182 u16 *ssn = ¶ms->ssn;
1183 int ret = 0;
1184 u8 session;
1185
1186 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac ampdu action action %d tid %d\n",
1187 action, tid);
1188
1189 mutex_lock(&wcn->conf_mutex);
1190
1191 switch (action) {
1192 case IEEE80211_AMPDU_RX_START:
1193 sta_priv->tid = tid;
1194 session = wcn36xx_smd_add_ba_session(wcn, sta, tid, ssn, 0,
1195 get_sta_index(vif, sta_priv));
1196 wcn36xx_smd_add_ba(wcn, session);
1197 wcn36xx_smd_trigger_ba(wcn, get_sta_index(vif, sta_priv), tid,
1198 session);
1199 break;
1200 case IEEE80211_AMPDU_RX_STOP:
1201 wcn36xx_smd_del_ba(wcn, tid, 0, get_sta_index(vif, sta_priv));
1202 break;
1203 case IEEE80211_AMPDU_TX_START:
1204 spin_lock_bh(&sta_priv->ampdu_lock);
1205 sta_priv->ampdu_state[tid] = WCN36XX_AMPDU_START;
1206 spin_unlock_bh(&sta_priv->ampdu_lock);
1207
1208 ret = IEEE80211_AMPDU_TX_START_IMMEDIATE;
1209 break;
1210 case IEEE80211_AMPDU_TX_OPERATIONAL:
1211 spin_lock_bh(&sta_priv->ampdu_lock);
1212 sta_priv->ampdu_state[tid] = WCN36XX_AMPDU_OPERATIONAL;
1213 spin_unlock_bh(&sta_priv->ampdu_lock);
1214
1215 wcn36xx_smd_add_ba_session(wcn, sta, tid, ssn, 1,
1216 get_sta_index(vif, sta_priv));
1217 break;
1218 case IEEE80211_AMPDU_TX_STOP_FLUSH:
1219 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
1220 case IEEE80211_AMPDU_TX_STOP_CONT:
1221 spin_lock_bh(&sta_priv->ampdu_lock);
1222 sta_priv->ampdu_state[tid] = WCN36XX_AMPDU_NONE;
1223 spin_unlock_bh(&sta_priv->ampdu_lock);
1224
1225 wcn36xx_smd_del_ba(wcn, tid, 1, get_sta_index(vif, sta_priv));
1226 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1227 break;
1228 default:
1229 wcn36xx_err("Unknown AMPDU action\n");
1230 }
1231
1232 mutex_unlock(&wcn->conf_mutex);
1233
1234 return ret;
1235}
1236
1237#if IS_ENABLED(CONFIG_IPV6)
1238static void wcn36xx_ipv6_addr_change(struct ieee80211_hw *hw,
1239 struct ieee80211_vif *vif,
1240 struct inet6_dev *idev)
1241{
1242 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
1243 struct inet6_ifaddr *ifa;
1244 int idx = 0;
1245
1246 memset(vif_priv->tentative_addrs, 0, sizeof(vif_priv->tentative_addrs));
1247
1248 read_lock_bh(&idev->lock);
1249 list_for_each_entry(ifa, &idev->addr_list, if_list) {
1250 vif_priv->target_ipv6_addrs[idx] = ifa->addr;
1251 if (ifa->flags & IFA_F_TENTATIVE)
1252 __set_bit(idx, vif_priv->tentative_addrs);
1253 idx++;
1254 if (idx >= WCN36XX_HAL_IPV6_OFFLOAD_ADDR_MAX)
1255 break;
1256 wcn36xx_dbg(WCN36XX_DBG_MAC, "%pI6 %s\n", &ifa->addr,
1257 (ifa->flags & IFA_F_TENTATIVE) ? "tentative" : NULL);
1258 }
1259 read_unlock_bh(&idev->lock);
1260
1261 vif_priv->num_target_ipv6_addrs = idx;
1262}
1263#endif
1264
1265static const struct ieee80211_ops wcn36xx_ops = {
1266 .start = wcn36xx_start,
1267 .stop = wcn36xx_stop,
1268 .add_interface = wcn36xx_add_interface,
1269 .remove_interface = wcn36xx_remove_interface,
1270#ifdef CONFIG_PM
1271 .suspend = wcn36xx_suspend,
1272 .resume = wcn36xx_resume,
1273 .set_rekey_data = wcn36xx_set_rekey_data,
1274#endif
1275 .config = wcn36xx_config,
1276 .prepare_multicast = wcn36xx_prepare_multicast,
1277 .configure_filter = wcn36xx_configure_filter,
1278 .tx = wcn36xx_tx,
1279 .set_key = wcn36xx_set_key,
1280 .hw_scan = wcn36xx_hw_scan,
1281 .cancel_hw_scan = wcn36xx_cancel_hw_scan,
1282 .sw_scan_start = wcn36xx_sw_scan_start,
1283 .sw_scan_complete = wcn36xx_sw_scan_complete,
1284 .bss_info_changed = wcn36xx_bss_info_changed,
1285 .set_rts_threshold = wcn36xx_set_rts_threshold,
1286 .sta_add = wcn36xx_sta_add,
1287 .sta_remove = wcn36xx_sta_remove,
1288 .ampdu_action = wcn36xx_ampdu_action,
1289#if IS_ENABLED(CONFIG_IPV6)
1290 .ipv6_addr_change = wcn36xx_ipv6_addr_change,
1291#endif
1292
1293 CFG80211_TESTMODE_CMD(wcn36xx_tm_cmd)
1294};
1295
1296static void
1297wcn36xx_set_ieee80211_vht_caps(struct ieee80211_sta_vht_cap *vht_cap)
1298{
1299 vht_cap->vht_supported = true;
1300
1301 vht_cap->cap = (IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895 |
1302 IEEE80211_VHT_CAP_SHORT_GI_80 |
1303 IEEE80211_VHT_CAP_RXSTBC_1 |
1304 IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
1305 IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE |
1306 3 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT |
1307 7 << IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT);
1308
1309 vht_cap->vht_mcs.rx_mcs_map =
1310 cpu_to_le16(IEEE80211_VHT_MCS_SUPPORT_0_9 |
1311 IEEE80211_VHT_MCS_NOT_SUPPORTED << 2 |
1312 IEEE80211_VHT_MCS_NOT_SUPPORTED << 4 |
1313 IEEE80211_VHT_MCS_NOT_SUPPORTED << 6 |
1314 IEEE80211_VHT_MCS_NOT_SUPPORTED << 8 |
1315 IEEE80211_VHT_MCS_NOT_SUPPORTED << 10 |
1316 IEEE80211_VHT_MCS_NOT_SUPPORTED << 12 |
1317 IEEE80211_VHT_MCS_NOT_SUPPORTED << 14);
1318
1319 vht_cap->vht_mcs.rx_highest = cpu_to_le16(433);
1320 vht_cap->vht_mcs.tx_highest = vht_cap->vht_mcs.rx_highest;
1321
1322 vht_cap->vht_mcs.tx_mcs_map = vht_cap->vht_mcs.rx_mcs_map;
1323}
1324
1325static int wcn36xx_init_ieee80211(struct wcn36xx *wcn)
1326{
1327 static const u32 cipher_suites[] = {
1328 WLAN_CIPHER_SUITE_WEP40,
1329 WLAN_CIPHER_SUITE_WEP104,
1330 WLAN_CIPHER_SUITE_TKIP,
1331 WLAN_CIPHER_SUITE_CCMP,
1332 };
1333
1334 ieee80211_hw_set(wcn->hw, TIMING_BEACON_ONLY);
1335 ieee80211_hw_set(wcn->hw, AMPDU_AGGREGATION);
1336 ieee80211_hw_set(wcn->hw, SUPPORTS_PS);
1337 ieee80211_hw_set(wcn->hw, SIGNAL_DBM);
1338 ieee80211_hw_set(wcn->hw, HAS_RATE_CONTROL);
1339 ieee80211_hw_set(wcn->hw, SINGLE_SCAN_ON_ALL_BANDS);
1340 ieee80211_hw_set(wcn->hw, REPORTS_TX_ACK_STATUS);
1341 ieee80211_hw_set(wcn->hw, CONNECTION_MONITOR);
1342
1343 wcn->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
1344 BIT(NL80211_IFTYPE_AP) |
1345 BIT(NL80211_IFTYPE_ADHOC) |
1346 BIT(NL80211_IFTYPE_MESH_POINT);
1347
1348 wcn->hw->wiphy->bands[NL80211_BAND_2GHZ] = &wcn_band_2ghz;
1349 if (wcn->rf_id != RF_IRIS_WCN3620)
1350 wcn->hw->wiphy->bands[NL80211_BAND_5GHZ] = &wcn_band_5ghz;
1351
1352 if (wcn->rf_id == RF_IRIS_WCN3680)
1353 wcn36xx_set_ieee80211_vht_caps(&wcn_band_5ghz.vht_cap);
1354
1355 wcn->hw->wiphy->max_scan_ssids = WCN36XX_MAX_SCAN_SSIDS;
1356 wcn->hw->wiphy->max_scan_ie_len = WCN36XX_MAX_SCAN_IE_LEN;
1357
1358 wcn->hw->wiphy->cipher_suites = cipher_suites;
1359 wcn->hw->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
1360
1361#ifdef CONFIG_PM
1362 wcn->hw->wiphy->wowlan = &wowlan_support;
1363#endif
1364
1365 wcn->hw->max_listen_interval = 200;
1366
1367 wcn->hw->queues = 4;
1368
1369 SET_IEEE80211_DEV(wcn->hw, wcn->dev);
1370
1371 wcn->hw->sta_data_size = sizeof(struct wcn36xx_sta);
1372 wcn->hw->vif_data_size = sizeof(struct wcn36xx_vif);
1373
1374 wiphy_ext_feature_set(wcn->hw->wiphy,
1375 NL80211_EXT_FEATURE_CQM_RSSI_LIST);
1376
1377 return 0;
1378}
1379
1380static int wcn36xx_platform_get_resources(struct wcn36xx *wcn,
1381 struct platform_device *pdev)
1382{
1383 struct device_node *mmio_node;
1384 struct device_node *iris_node;
1385 struct resource *res;
1386 int index;
1387 int ret;
1388
1389
1390 res = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "tx");
1391 if (!res) {
1392 wcn36xx_err("failed to get tx_irq\n");
1393 return -ENOENT;
1394 }
1395 wcn->tx_irq = res->start;
1396
1397
1398 res = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "rx");
1399 if (!res) {
1400 wcn36xx_err("failed to get rx_irq\n");
1401 return -ENOENT;
1402 }
1403 wcn->rx_irq = res->start;
1404
1405
1406 wcn->tx_enable_state = qcom_smem_state_get(&pdev->dev,
1407 "tx-enable", &wcn->tx_enable_state_bit);
1408 if (IS_ERR(wcn->tx_enable_state)) {
1409 wcn36xx_err("failed to get tx-enable state\n");
1410 return PTR_ERR(wcn->tx_enable_state);
1411 }
1412
1413
1414 wcn->tx_rings_empty_state = qcom_smem_state_get(&pdev->dev,
1415 "tx-rings-empty", &wcn->tx_rings_empty_state_bit);
1416 if (IS_ERR(wcn->tx_rings_empty_state)) {
1417 wcn36xx_err("failed to get tx-rings-empty state\n");
1418 return PTR_ERR(wcn->tx_rings_empty_state);
1419 }
1420
1421 mmio_node = of_parse_phandle(pdev->dev.parent->of_node, "qcom,mmio", 0);
1422 if (!mmio_node) {
1423 wcn36xx_err("failed to acquire qcom,mmio reference\n");
1424 return -EINVAL;
1425 }
1426
1427 wcn->is_pronto = !!of_device_is_compatible(mmio_node, "qcom,pronto");
1428
1429
1430 index = of_property_match_string(mmio_node, "reg-names", "ccu");
1431 wcn->ccu_base = of_iomap(mmio_node, index);
1432 if (!wcn->ccu_base) {
1433 wcn36xx_err("failed to map ccu memory\n");
1434 ret = -ENOMEM;
1435 goto put_mmio_node;
1436 }
1437
1438
1439 index = of_property_match_string(mmio_node, "reg-names", "dxe");
1440 wcn->dxe_base = of_iomap(mmio_node, index);
1441 if (!wcn->dxe_base) {
1442 wcn36xx_err("failed to map dxe memory\n");
1443 ret = -ENOMEM;
1444 goto unmap_ccu;
1445 }
1446
1447
1448 iris_node = of_get_child_by_name(mmio_node, "iris");
1449 if (iris_node) {
1450 if (of_device_is_compatible(iris_node, "qcom,wcn3620"))
1451 wcn->rf_id = RF_IRIS_WCN3620;
1452 if (of_device_is_compatible(iris_node, "qcom,wcn3680"))
1453 wcn->rf_id = RF_IRIS_WCN3680;
1454 of_node_put(iris_node);
1455 }
1456
1457 of_node_put(mmio_node);
1458 return 0;
1459
1460unmap_ccu:
1461 iounmap(wcn->ccu_base);
1462put_mmio_node:
1463 of_node_put(mmio_node);
1464 return ret;
1465}
1466
1467static int wcn36xx_probe(struct platform_device *pdev)
1468{
1469 struct ieee80211_hw *hw;
1470 struct wcn36xx *wcn;
1471 void *wcnss;
1472 int ret;
1473 const u8 *addr;
1474
1475 wcn36xx_dbg(WCN36XX_DBG_MAC, "platform probe\n");
1476
1477 wcnss = dev_get_drvdata(pdev->dev.parent);
1478
1479 hw = ieee80211_alloc_hw(sizeof(struct wcn36xx), &wcn36xx_ops);
1480 if (!hw) {
1481 wcn36xx_err("failed to alloc hw\n");
1482 ret = -ENOMEM;
1483 goto out_err;
1484 }
1485 platform_set_drvdata(pdev, hw);
1486 wcn = hw->priv;
1487 wcn->hw = hw;
1488 wcn->dev = &pdev->dev;
1489 wcn->first_boot = true;
1490 mutex_init(&wcn->conf_mutex);
1491 mutex_init(&wcn->hal_mutex);
1492 mutex_init(&wcn->scan_lock);
1493
1494 wcn->hal_buf = devm_kmalloc(wcn->dev, WCN36XX_HAL_BUF_SIZE, GFP_KERNEL);
1495 if (!wcn->hal_buf) {
1496 ret = -ENOMEM;
1497 goto out_wq;
1498 }
1499
1500 ret = dma_set_mask_and_coherent(wcn->dev, DMA_BIT_MASK(32));
1501 if (ret < 0) {
1502 wcn36xx_err("failed to set DMA mask: %d\n", ret);
1503 goto out_wq;
1504 }
1505
1506 wcn->nv_file = WLAN_NV_FILE;
1507 ret = of_property_read_string(wcn->dev->parent->of_node, "firmware-name", &wcn->nv_file);
1508 if (ret < 0 && ret != -EINVAL) {
1509 wcn36xx_err("failed to read \"firmware-name\" property: %d\n", ret);
1510 goto out_wq;
1511 }
1512
1513 wcn->smd_channel = qcom_wcnss_open_channel(wcnss, "WLAN_CTRL", wcn36xx_smd_rsp_process, hw);
1514 if (IS_ERR(wcn->smd_channel)) {
1515 wcn36xx_err("failed to open WLAN_CTRL channel\n");
1516 ret = PTR_ERR(wcn->smd_channel);
1517 goto out_wq;
1518 }
1519
1520 addr = of_get_property(pdev->dev.of_node, "local-mac-address", &ret);
1521 if (addr && ret != ETH_ALEN) {
1522 wcn36xx_err("invalid local-mac-address\n");
1523 ret = -EINVAL;
1524 goto out_destroy_ept;
1525 } else if (addr) {
1526 wcn36xx_info("mac address: %pM\n", addr);
1527 SET_IEEE80211_PERM_ADDR(wcn->hw, addr);
1528 }
1529
1530 ret = wcn36xx_platform_get_resources(wcn, pdev);
1531 if (ret)
1532 goto out_destroy_ept;
1533
1534 wcn36xx_init_ieee80211(wcn);
1535 ret = ieee80211_register_hw(wcn->hw);
1536 if (ret)
1537 goto out_unmap;
1538
1539 return 0;
1540
1541out_unmap:
1542 iounmap(wcn->ccu_base);
1543 iounmap(wcn->dxe_base);
1544out_destroy_ept:
1545 rpmsg_destroy_ept(wcn->smd_channel);
1546out_wq:
1547 ieee80211_free_hw(hw);
1548out_err:
1549 return ret;
1550}
1551
1552static int wcn36xx_remove(struct platform_device *pdev)
1553{
1554 struct ieee80211_hw *hw = platform_get_drvdata(pdev);
1555 struct wcn36xx *wcn = hw->priv;
1556 wcn36xx_dbg(WCN36XX_DBG_MAC, "platform remove\n");
1557
1558 release_firmware(wcn->nv);
1559
1560 ieee80211_unregister_hw(hw);
1561
1562 qcom_smem_state_put(wcn->tx_enable_state);
1563 qcom_smem_state_put(wcn->tx_rings_empty_state);
1564
1565 rpmsg_destroy_ept(wcn->smd_channel);
1566
1567 iounmap(wcn->dxe_base);
1568 iounmap(wcn->ccu_base);
1569
1570 mutex_destroy(&wcn->hal_mutex);
1571 ieee80211_free_hw(hw);
1572
1573 return 0;
1574}
1575
1576static const struct of_device_id wcn36xx_of_match[] = {
1577 { .compatible = "qcom,wcnss-wlan" },
1578 {}
1579};
1580MODULE_DEVICE_TABLE(of, wcn36xx_of_match);
1581
1582static struct platform_driver wcn36xx_driver = {
1583 .probe = wcn36xx_probe,
1584 .remove = wcn36xx_remove,
1585 .driver = {
1586 .name = "wcn36xx",
1587 .of_match_table = wcn36xx_of_match,
1588 },
1589};
1590
1591module_platform_driver(wcn36xx_driver);
1592
1593MODULE_LICENSE("Dual BSD/GPL");
1594MODULE_AUTHOR("Eugene Krasnikov k.eugene.e@gmail.com");
1595MODULE_FIRMWARE(WLAN_NV_FILE);
1596
