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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 "wcn36xx.h"
25
26unsigned int wcn36xx_dbg_mask;
27module_param_named(debug_mask, wcn36xx_dbg_mask, uint, 0644);
28MODULE_PARM_DESC(debug_mask, "Debugging mask");
29
30#define CHAN2G(_freq, _idx) { \
31 .band = NL80211_BAND_2GHZ, \
32 .center_freq = (_freq), \
33 .hw_value = (_idx), \
34 .max_power = 25, \
35}
36
37#define CHAN5G(_freq, _idx) { \
38 .band = NL80211_BAND_5GHZ, \
39 .center_freq = (_freq), \
40 .hw_value = (_idx), \
41 .max_power = 25, \
42}
43
44
45
46static struct ieee80211_channel wcn_2ghz_channels[] = {
47 CHAN2G(2412, 1),
48 CHAN2G(2417, 2),
49 CHAN2G(2422, 3),
50 CHAN2G(2427, 4),
51 CHAN2G(2432, 5),
52 CHAN2G(2437, 6),
53 CHAN2G(2442, 7),
54 CHAN2G(2447, 8),
55 CHAN2G(2452, 9),
56 CHAN2G(2457, 10),
57 CHAN2G(2462, 11),
58 CHAN2G(2467, 12),
59 CHAN2G(2472, 13),
60 CHAN2G(2484, 14)
61
62};
63
64static struct ieee80211_channel wcn_5ghz_channels[] = {
65 CHAN5G(5180, 36),
66 CHAN5G(5200, 40),
67 CHAN5G(5220, 44),
68 CHAN5G(5240, 48),
69 CHAN5G(5260, 52),
70 CHAN5G(5280, 56),
71 CHAN5G(5300, 60),
72 CHAN5G(5320, 64),
73 CHAN5G(5500, 100),
74 CHAN5G(5520, 104),
75 CHAN5G(5540, 108),
76 CHAN5G(5560, 112),
77 CHAN5G(5580, 116),
78 CHAN5G(5600, 120),
79 CHAN5G(5620, 124),
80 CHAN5G(5640, 128),
81 CHAN5G(5660, 132),
82 CHAN5G(5700, 140),
83 CHAN5G(5745, 149),
84 CHAN5G(5765, 153),
85 CHAN5G(5785, 157),
86 CHAN5G(5805, 161),
87 CHAN5G(5825, 165)
88};
89
90#define RATE(_bitrate, _hw_rate, _flags) { \
91 .bitrate = (_bitrate), \
92 .flags = (_flags), \
93 .hw_value = (_hw_rate), \
94 .hw_value_short = (_hw_rate) \
95}
96
97static struct ieee80211_rate wcn_2ghz_rates[] = {
98 RATE(10, HW_RATE_INDEX_1MBPS, 0),
99 RATE(20, HW_RATE_INDEX_2MBPS, IEEE80211_RATE_SHORT_PREAMBLE),
100 RATE(55, HW_RATE_INDEX_5_5MBPS, IEEE80211_RATE_SHORT_PREAMBLE),
101 RATE(110, HW_RATE_INDEX_11MBPS, IEEE80211_RATE_SHORT_PREAMBLE),
102 RATE(60, HW_RATE_INDEX_6MBPS, 0),
103 RATE(90, HW_RATE_INDEX_9MBPS, 0),
104 RATE(120, HW_RATE_INDEX_12MBPS, 0),
105 RATE(180, HW_RATE_INDEX_18MBPS, 0),
106 RATE(240, HW_RATE_INDEX_24MBPS, 0),
107 RATE(360, HW_RATE_INDEX_36MBPS, 0),
108 RATE(480, HW_RATE_INDEX_48MBPS, 0),
109 RATE(540, HW_RATE_INDEX_54MBPS, 0)
110};
111
112static struct ieee80211_rate wcn_5ghz_rates[] = {
113 RATE(60, HW_RATE_INDEX_6MBPS, 0),
114 RATE(90, HW_RATE_INDEX_9MBPS, 0),
115 RATE(120, HW_RATE_INDEX_12MBPS, 0),
116 RATE(180, HW_RATE_INDEX_18MBPS, 0),
117 RATE(240, HW_RATE_INDEX_24MBPS, 0),
118 RATE(360, HW_RATE_INDEX_36MBPS, 0),
119 RATE(480, HW_RATE_INDEX_48MBPS, 0),
120 RATE(540, HW_RATE_INDEX_54MBPS, 0)
121};
122
123static struct ieee80211_supported_band wcn_band_2ghz = {
124 .channels = wcn_2ghz_channels,
125 .n_channels = ARRAY_SIZE(wcn_2ghz_channels),
126 .bitrates = wcn_2ghz_rates,
127 .n_bitrates = ARRAY_SIZE(wcn_2ghz_rates),
128 .ht_cap = {
129 .cap = IEEE80211_HT_CAP_GRN_FLD |
130 IEEE80211_HT_CAP_SGI_20 |
131 IEEE80211_HT_CAP_DSSSCCK40 |
132 IEEE80211_HT_CAP_LSIG_TXOP_PROT,
133 .ht_supported = true,
134 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K,
135 .ampdu_density = IEEE80211_HT_MPDU_DENSITY_16,
136 .mcs = {
137 .rx_mask = { 0xff, 0, 0, 0, 0, 0, 0, 0, 0, 0, },
138 .rx_highest = cpu_to_le16(72),
139 .tx_params = IEEE80211_HT_MCS_TX_DEFINED,
140 }
141 }
142};
143
144static struct ieee80211_supported_band wcn_band_5ghz = {
145 .channels = wcn_5ghz_channels,
146 .n_channels = ARRAY_SIZE(wcn_5ghz_channels),
147 .bitrates = wcn_5ghz_rates,
148 .n_bitrates = ARRAY_SIZE(wcn_5ghz_rates),
149 .ht_cap = {
150 .cap = IEEE80211_HT_CAP_GRN_FLD |
151 IEEE80211_HT_CAP_SGI_20 |
152 IEEE80211_HT_CAP_DSSSCCK40 |
153 IEEE80211_HT_CAP_LSIG_TXOP_PROT |
154 IEEE80211_HT_CAP_SGI_40 |
155 IEEE80211_HT_CAP_SUP_WIDTH_20_40,
156 .ht_supported = true,
157 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K,
158 .ampdu_density = IEEE80211_HT_MPDU_DENSITY_16,
159 .mcs = {
160 .rx_mask = { 0xff, 0, 0, 0, 0, 0, 0, 0, 0, 0, },
161 .rx_highest = cpu_to_le16(72),
162 .tx_params = IEEE80211_HT_MCS_TX_DEFINED,
163 }
164 }
165};
166
167#ifdef CONFIG_PM
168
169static const struct wiphy_wowlan_support wowlan_support = {
170 .flags = WIPHY_WOWLAN_ANY
171};
172
173#endif
174
175static inline u8 get_sta_index(struct ieee80211_vif *vif,
176 struct wcn36xx_sta *sta_priv)
177{
178 return NL80211_IFTYPE_STATION == vif->type ?
179 sta_priv->bss_sta_index :
180 sta_priv->sta_index;
181}
182
183static const char * const wcn36xx_caps_names[] = {
184 "MCC",
185 "P2P",
186 "DOT11AC",
187 "SLM_SESSIONIZATION",
188 "DOT11AC_OPMODE",
189 "SAP32STA",
190 "TDLS",
191 "P2P_GO_NOA_DECOUPLE_INIT_SCAN",
192 "WLANACTIVE_OFFLOAD",
193 "BEACON_OFFLOAD",
194 "SCAN_OFFLOAD",
195 "ROAM_OFFLOAD",
196 "BCN_MISS_OFFLOAD",
197 "STA_POWERSAVE",
198 "STA_ADVANCED_PWRSAVE",
199 "AP_UAPSD",
200 "AP_DFS",
201 "BLOCKACK",
202 "PHY_ERR",
203 "BCN_FILTER",
204 "RTT",
205 "RATECTRL",
206 "WOW",
207 "WLAN_ROAM_SCAN_OFFLOAD",
208 "SPECULATIVE_PS_POLL",
209 "SCAN_SCH",
210 "IBSS_HEARTBEAT_OFFLOAD",
211 "WLAN_SCAN_OFFLOAD",
212 "WLAN_PERIODIC_TX_PTRN",
213 "ADVANCE_TDLS",
214 "BATCH_SCAN",
215 "FW_IN_TX_PATH",
216 "EXTENDED_NSOFFLOAD_SLOT",
217 "CH_SWITCH_V1",
218 "HT40_OBSS_SCAN",
219 "UPDATE_CHANNEL_LIST",
220 "WLAN_MCADDR_FLT",
221 "WLAN_CH144",
222 "NAN",
223 "TDLS_SCAN_COEXISTENCE",
224 "LINK_LAYER_STATS_MEAS",
225 "MU_MIMO",
226 "EXTENDED_SCAN",
227 "DYNAMIC_WMM_PS",
228 "MAC_SPOOFED_SCAN",
229 "BMU_ERROR_GENERIC_RECOVERY",
230 "DISA",
231 "FW_STATS",
232 "WPS_PRBRSP_TMPL",
233 "BCN_IE_FLT_DELTA",
234 "TDLS_OFF_CHANNEL",
235 "RTT3",
236 "MGMT_FRAME_LOGGING",
237 "ENHANCED_TXBD_COMPLETION",
238 "LOGGING_ENHANCEMENT",
239 "EXT_SCAN_ENHANCED",
240 "MEMORY_DUMP_SUPPORTED",
241 "PER_PKT_STATS_SUPPORTED",
242 "EXT_LL_STAT",
243 "WIFI_CONFIG",
244 "ANTENNA_DIVERSITY_SELECTION",
245};
246
247static const char *wcn36xx_get_cap_name(enum place_holder_in_cap_bitmap x)
248{
249 if (x >= ARRAY_SIZE(wcn36xx_caps_names))
250 return "UNKNOWN";
251 return wcn36xx_caps_names[x];
252}
253
254static void wcn36xx_feat_caps_info(struct wcn36xx *wcn)
255{
256 int i;
257
258 for (i = 0; i < MAX_FEATURE_SUPPORTED; i++) {
259 if (get_feat_caps(wcn->fw_feat_caps, i))
260 wcn36xx_info("FW Cap %s\n", wcn36xx_get_cap_name(i));
261 }
262}
263
264static int wcn36xx_start(struct ieee80211_hw *hw)
265{
266 struct wcn36xx *wcn = hw->priv;
267 int ret;
268
269 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac start\n");
270
271
272 ret = wcn36xx_smd_open(wcn);
273 if (ret) {
274 wcn36xx_err("Failed to open smd channel: %d\n", ret);
275 goto out_err;
276 }
277
278
279 ret = wcn36xx_dxe_allocate_mem_pools(wcn);
280 if (ret) {
281 wcn36xx_err("Failed to alloc DXE mempool: %d\n", ret);
282 goto out_smd_close;
283 }
284
285 ret = wcn36xx_dxe_alloc_ctl_blks(wcn);
286 if (ret) {
287 wcn36xx_err("Failed to alloc DXE ctl blocks: %d\n", ret);
288 goto out_free_dxe_pool;
289 }
290
291 wcn->hal_buf = kmalloc(WCN36XX_HAL_BUF_SIZE, GFP_KERNEL);
292 if (!wcn->hal_buf) {
293 wcn36xx_err("Failed to allocate smd buf\n");
294 ret = -ENOMEM;
295 goto out_free_dxe_ctl;
296 }
297
298 ret = wcn36xx_smd_load_nv(wcn);
299 if (ret) {
300 wcn36xx_err("Failed to push NV to chip\n");
301 goto out_free_smd_buf;
302 }
303
304 ret = wcn36xx_smd_start(wcn);
305 if (ret) {
306 wcn36xx_err("Failed to start chip\n");
307 goto out_free_smd_buf;
308 }
309
310 if (!wcn36xx_is_fw_version(wcn, 1, 2, 2, 24)) {
311 ret = wcn36xx_smd_feature_caps_exchange(wcn);
312 if (ret)
313 wcn36xx_warn("Exchange feature caps failed\n");
314 else
315 wcn36xx_feat_caps_info(wcn);
316 }
317
318
319 ret = wcn36xx_dxe_init(wcn);
320 if (ret) {
321 wcn36xx_err("DXE init failed\n");
322 goto out_smd_stop;
323 }
324
325 wcn36xx_debugfs_init(wcn);
326
327 INIT_LIST_HEAD(&wcn->vif_list);
328 spin_lock_init(&wcn->dxe_lock);
329
330 return 0;
331
332out_smd_stop:
333 wcn36xx_smd_stop(wcn);
334out_free_smd_buf:
335 kfree(wcn->hal_buf);
336out_free_dxe_pool:
337 wcn36xx_dxe_free_mem_pools(wcn);
338out_free_dxe_ctl:
339 wcn36xx_dxe_free_ctl_blks(wcn);
340out_smd_close:
341 wcn36xx_smd_close(wcn);
342out_err:
343 return ret;
344}
345
346static void wcn36xx_stop(struct ieee80211_hw *hw)
347{
348 struct wcn36xx *wcn = hw->priv;
349
350 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac stop\n");
351
352 wcn36xx_debugfs_exit(wcn);
353 wcn36xx_smd_stop(wcn);
354 wcn36xx_dxe_deinit(wcn);
355 wcn36xx_smd_close(wcn);
356
357 wcn36xx_dxe_free_mem_pools(wcn);
358 wcn36xx_dxe_free_ctl_blks(wcn);
359
360 kfree(wcn->hal_buf);
361}
362
363static int wcn36xx_config(struct ieee80211_hw *hw, u32 changed)
364{
365 struct wcn36xx *wcn = hw->priv;
366 struct ieee80211_vif *vif = NULL;
367 struct wcn36xx_vif *tmp;
368
369 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac config changed 0x%08x\n", changed);
370
371 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
372 int ch = WCN36XX_HW_CHANNEL(wcn);
373 wcn36xx_dbg(WCN36XX_DBG_MAC, "wcn36xx_config channel switch=%d\n",
374 ch);
375 list_for_each_entry(tmp, &wcn->vif_list, list) {
376 vif = wcn36xx_priv_to_vif(tmp);
377 wcn36xx_smd_switch_channel(wcn, vif, ch);
378 }
379 }
380
381 return 0;
382}
383
384static void wcn36xx_configure_filter(struct ieee80211_hw *hw,
385 unsigned int changed,
386 unsigned int *total, u64 multicast)
387{
388 struct wcn36xx_hal_rcv_flt_mc_addr_list_type *fp;
389 struct wcn36xx *wcn = hw->priv;
390 struct wcn36xx_vif *tmp;
391 struct ieee80211_vif *vif = NULL;
392
393 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac configure filter\n");
394
395 *total &= FIF_ALLMULTI;
396
397 fp = (void *)(unsigned long)multicast;
398 list_for_each_entry(tmp, &wcn->vif_list, list) {
399 vif = wcn36xx_priv_to_vif(tmp);
400
401
402 if (*total & FIF_ALLMULTI)
403 wcn36xx_smd_set_mc_list(wcn, vif, NULL);
404 else if (NL80211_IFTYPE_STATION == vif->type && tmp->sta_assoc)
405 wcn36xx_smd_set_mc_list(wcn, vif, fp);
406 }
407 kfree(fp);
408}
409
410static u64 wcn36xx_prepare_multicast(struct ieee80211_hw *hw,
411 struct netdev_hw_addr_list *mc_list)
412{
413 struct wcn36xx_hal_rcv_flt_mc_addr_list_type *fp;
414 struct netdev_hw_addr *ha;
415
416 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac prepare multicast list\n");
417 fp = kzalloc(sizeof(*fp), GFP_ATOMIC);
418 if (!fp) {
419 wcn36xx_err("Out of memory setting filters.\n");
420 return 0;
421 }
422
423 fp->mc_addr_count = 0;
424
425 if (netdev_hw_addr_list_count(mc_list) <=
426 WCN36XX_HAL_MAX_NUM_MULTICAST_ADDRESS) {
427 netdev_hw_addr_list_for_each(ha, mc_list) {
428 memcpy(fp->mc_addr[fp->mc_addr_count],
429 ha->addr, ETH_ALEN);
430 fp->mc_addr_count++;
431 }
432 }
433
434 return (u64)(unsigned long)fp;
435}
436
437static void wcn36xx_tx(struct ieee80211_hw *hw,
438 struct ieee80211_tx_control *control,
439 struct sk_buff *skb)
440{
441 struct wcn36xx *wcn = hw->priv;
442 struct wcn36xx_sta *sta_priv = NULL;
443
444 if (control->sta)
445 sta_priv = wcn36xx_sta_to_priv(control->sta);
446
447 if (wcn36xx_start_tx(wcn, sta_priv, skb))
448 ieee80211_free_txskb(wcn->hw, skb);
449}
450
451static int wcn36xx_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
452 struct ieee80211_vif *vif,
453 struct ieee80211_sta *sta,
454 struct ieee80211_key_conf *key_conf)
455{
456 struct wcn36xx *wcn = hw->priv;
457 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
458 struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(sta);
459 int ret = 0;
460 u8 key[WLAN_MAX_KEY_LEN];
461
462 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac80211 set key\n");
463 wcn36xx_dbg(WCN36XX_DBG_MAC, "Key: cmd=0x%x algo:0x%x, id:%d, len:%d flags 0x%x\n",
464 cmd, key_conf->cipher, key_conf->keyidx,
465 key_conf->keylen, key_conf->flags);
466 wcn36xx_dbg_dump(WCN36XX_DBG_MAC, "KEY: ",
467 key_conf->key,
468 key_conf->keylen);
469
470 switch (key_conf->cipher) {
471 case WLAN_CIPHER_SUITE_WEP40:
472 vif_priv->encrypt_type = WCN36XX_HAL_ED_WEP40;
473 break;
474 case WLAN_CIPHER_SUITE_WEP104:
475 vif_priv->encrypt_type = WCN36XX_HAL_ED_WEP40;
476 break;
477 case WLAN_CIPHER_SUITE_CCMP:
478 vif_priv->encrypt_type = WCN36XX_HAL_ED_CCMP;
479 break;
480 case WLAN_CIPHER_SUITE_TKIP:
481 vif_priv->encrypt_type = WCN36XX_HAL_ED_TKIP;
482 break;
483 default:
484 wcn36xx_err("Unsupported key type 0x%x\n",
485 key_conf->cipher);
486 ret = -EOPNOTSUPP;
487 goto out;
488 }
489
490 switch (cmd) {
491 case SET_KEY:
492 if (WCN36XX_HAL_ED_TKIP == vif_priv->encrypt_type) {
493
494
495
496
497
498
499
500 memcpy(key, key_conf->key, 16);
501 memcpy(key + 16, key_conf->key + 24, 8);
502 memcpy(key + 24, key_conf->key + 16, 8);
503 } else {
504 memcpy(key, key_conf->key, key_conf->keylen);
505 }
506
507 if (IEEE80211_KEY_FLAG_PAIRWISE & key_conf->flags) {
508 sta_priv->is_data_encrypted = true;
509
510 if (NL80211_IFTYPE_STATION == vif->type)
511 wcn36xx_smd_config_bss(wcn,
512 vif,
513 sta,
514 sta->addr,
515 true);
516
517 wcn36xx_smd_set_stakey(wcn,
518 vif_priv->encrypt_type,
519 key_conf->keyidx,
520 key_conf->keylen,
521 key,
522 get_sta_index(vif, sta_priv));
523 } else {
524 wcn36xx_smd_set_bsskey(wcn,
525 vif_priv->encrypt_type,
526 key_conf->keyidx,
527 key_conf->keylen,
528 key);
529 if ((WLAN_CIPHER_SUITE_WEP40 == key_conf->cipher) ||
530 (WLAN_CIPHER_SUITE_WEP104 == key_conf->cipher)) {
531 sta_priv->is_data_encrypted = true;
532 wcn36xx_smd_set_stakey(wcn,
533 vif_priv->encrypt_type,
534 key_conf->keyidx,
535 key_conf->keylen,
536 key,
537 get_sta_index(vif, sta_priv));
538 }
539 }
540 break;
541 case DISABLE_KEY:
542 if (!(IEEE80211_KEY_FLAG_PAIRWISE & key_conf->flags)) {
543 vif_priv->encrypt_type = WCN36XX_HAL_ED_NONE;
544 wcn36xx_smd_remove_bsskey(wcn,
545 vif_priv->encrypt_type,
546 key_conf->keyidx);
547 } else {
548 sta_priv->is_data_encrypted = false;
549
550 if (sta_priv->aid)
551 wcn36xx_smd_remove_stakey(wcn,
552 vif_priv->encrypt_type,
553 key_conf->keyidx,
554 get_sta_index(vif, sta_priv));
555 }
556 break;
557 default:
558 wcn36xx_err("Unsupported key cmd 0x%x\n", cmd);
559 ret = -EOPNOTSUPP;
560 goto out;
561 }
562
563out:
564 return ret;
565}
566
567static void wcn36xx_sw_scan_start(struct ieee80211_hw *hw,
568 struct ieee80211_vif *vif,
569 const u8 *mac_addr)
570{
571 struct wcn36xx *wcn = hw->priv;
572
573 wcn36xx_smd_init_scan(wcn, HAL_SYS_MODE_SCAN);
574 wcn36xx_smd_start_scan(wcn);
575}
576
577static void wcn36xx_sw_scan_complete(struct ieee80211_hw *hw,
578 struct ieee80211_vif *vif)
579{
580 struct wcn36xx *wcn = hw->priv;
581
582 wcn36xx_smd_end_scan(wcn);
583 wcn36xx_smd_finish_scan(wcn, HAL_SYS_MODE_SCAN);
584}
585
586static void wcn36xx_update_allowed_rates(struct ieee80211_sta *sta,
587 enum nl80211_band band)
588{
589 int i, size;
590 u16 *rates_table;
591 struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(sta);
592 u32 rates = sta->supp_rates[band];
593
594 memset(&sta_priv->supported_rates, 0,
595 sizeof(sta_priv->supported_rates));
596 sta_priv->supported_rates.op_rate_mode = STA_11n;
597
598 size = ARRAY_SIZE(sta_priv->supported_rates.dsss_rates);
599 rates_table = sta_priv->supported_rates.dsss_rates;
600 if (band == NL80211_BAND_2GHZ) {
601 for (i = 0; i < size; i++) {
602 if (rates & 0x01) {
603 rates_table[i] = wcn_2ghz_rates[i].hw_value;
604 rates = rates >> 1;
605 }
606 }
607 }
608
609 size = ARRAY_SIZE(sta_priv->supported_rates.ofdm_rates);
610 rates_table = sta_priv->supported_rates.ofdm_rates;
611 for (i = 0; i < size; i++) {
612 if (rates & 0x01) {
613 rates_table[i] = wcn_5ghz_rates[i].hw_value;
614 rates = rates >> 1;
615 }
616 }
617
618 if (sta->ht_cap.ht_supported) {
619 BUILD_BUG_ON(sizeof(sta->ht_cap.mcs.rx_mask) >
620 sizeof(sta_priv->supported_rates.supported_mcs_set));
621 memcpy(sta_priv->supported_rates.supported_mcs_set,
622 sta->ht_cap.mcs.rx_mask,
623 sizeof(sta->ht_cap.mcs.rx_mask));
624 }
625}
626void wcn36xx_set_default_rates(struct wcn36xx_hal_supported_rates *rates)
627{
628 u16 ofdm_rates[WCN36XX_HAL_NUM_OFDM_RATES] = {
629 HW_RATE_INDEX_6MBPS,
630 HW_RATE_INDEX_9MBPS,
631 HW_RATE_INDEX_12MBPS,
632 HW_RATE_INDEX_18MBPS,
633 HW_RATE_INDEX_24MBPS,
634 HW_RATE_INDEX_36MBPS,
635 HW_RATE_INDEX_48MBPS,
636 HW_RATE_INDEX_54MBPS
637 };
638 u16 dsss_rates[WCN36XX_HAL_NUM_DSSS_RATES] = {
639 HW_RATE_INDEX_1MBPS,
640 HW_RATE_INDEX_2MBPS,
641 HW_RATE_INDEX_5_5MBPS,
642 HW_RATE_INDEX_11MBPS
643 };
644
645 rates->op_rate_mode = STA_11n;
646 memcpy(rates->dsss_rates, dsss_rates,
647 sizeof(*dsss_rates) * WCN36XX_HAL_NUM_DSSS_RATES);
648 memcpy(rates->ofdm_rates, ofdm_rates,
649 sizeof(*ofdm_rates) * WCN36XX_HAL_NUM_OFDM_RATES);
650 rates->supported_mcs_set[0] = 0xFF;
651}
652static void wcn36xx_bss_info_changed(struct ieee80211_hw *hw,
653 struct ieee80211_vif *vif,
654 struct ieee80211_bss_conf *bss_conf,
655 u32 changed)
656{
657 struct wcn36xx *wcn = hw->priv;
658 struct sk_buff *skb = NULL;
659 u16 tim_off, tim_len;
660 enum wcn36xx_hal_link_state link_state;
661 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
662
663 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss info changed vif %p changed 0x%08x\n",
664 vif, changed);
665
666 if (changed & BSS_CHANGED_BEACON_INFO) {
667 wcn36xx_dbg(WCN36XX_DBG_MAC,
668 "mac bss changed dtim period %d\n",
669 bss_conf->dtim_period);
670
671 vif_priv->dtim_period = bss_conf->dtim_period;
672 }
673
674 if (changed & BSS_CHANGED_PS) {
675 wcn36xx_dbg(WCN36XX_DBG_MAC,
676 "mac bss PS set %d\n",
677 bss_conf->ps);
678 if (bss_conf->ps) {
679 wcn36xx_pmc_enter_bmps_state(wcn, vif);
680 } else {
681 wcn36xx_pmc_exit_bmps_state(wcn, vif);
682 }
683 }
684
685 if (changed & BSS_CHANGED_BSSID) {
686 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss changed_bssid %pM\n",
687 bss_conf->bssid);
688
689 if (!is_zero_ether_addr(bss_conf->bssid)) {
690 vif_priv->is_joining = true;
691 vif_priv->bss_index = WCN36XX_HAL_BSS_INVALID_IDX;
692 wcn36xx_smd_join(wcn, bss_conf->bssid,
693 vif->addr, WCN36XX_HW_CHANNEL(wcn));
694 wcn36xx_smd_config_bss(wcn, vif, NULL,
695 bss_conf->bssid, false);
696 } else {
697 vif_priv->is_joining = false;
698 wcn36xx_smd_delete_bss(wcn, vif);
699 vif_priv->encrypt_type = WCN36XX_HAL_ED_NONE;
700 }
701 }
702
703 if (changed & BSS_CHANGED_SSID) {
704 wcn36xx_dbg(WCN36XX_DBG_MAC,
705 "mac bss changed ssid\n");
706 wcn36xx_dbg_dump(WCN36XX_DBG_MAC, "ssid ",
707 bss_conf->ssid, bss_conf->ssid_len);
708
709 vif_priv->ssid.length = bss_conf->ssid_len;
710 memcpy(&vif_priv->ssid.ssid,
711 bss_conf->ssid,
712 bss_conf->ssid_len);
713 }
714
715 if (changed & BSS_CHANGED_ASSOC) {
716 vif_priv->is_joining = false;
717 if (bss_conf->assoc) {
718 struct ieee80211_sta *sta;
719 struct wcn36xx_sta *sta_priv;
720
721 wcn36xx_dbg(WCN36XX_DBG_MAC,
722 "mac assoc bss %pM vif %pM AID=%d\n",
723 bss_conf->bssid,
724 vif->addr,
725 bss_conf->aid);
726
727 vif_priv->sta_assoc = true;
728 rcu_read_lock();
729 sta = ieee80211_find_sta(vif, bss_conf->bssid);
730 if (!sta) {
731 wcn36xx_err("sta %pM is not found\n",
732 bss_conf->bssid);
733 rcu_read_unlock();
734 goto out;
735 }
736 sta_priv = wcn36xx_sta_to_priv(sta);
737
738 wcn36xx_update_allowed_rates(sta, WCN36XX_BAND(wcn));
739
740 wcn36xx_smd_set_link_st(wcn, bss_conf->bssid,
741 vif->addr,
742 WCN36XX_HAL_LINK_POSTASSOC_STATE);
743 wcn36xx_smd_config_bss(wcn, vif, sta,
744 bss_conf->bssid,
745 true);
746 sta_priv->aid = bss_conf->aid;
747
748
749
750
751 wcn36xx_smd_config_sta(wcn, vif, sta);
752 rcu_read_unlock();
753 } else {
754 wcn36xx_dbg(WCN36XX_DBG_MAC,
755 "disassociated bss %pM vif %pM AID=%d\n",
756 bss_conf->bssid,
757 vif->addr,
758 bss_conf->aid);
759 vif_priv->sta_assoc = false;
760 wcn36xx_smd_set_link_st(wcn,
761 bss_conf->bssid,
762 vif->addr,
763 WCN36XX_HAL_LINK_IDLE_STATE);
764 }
765 }
766
767 if (changed & BSS_CHANGED_AP_PROBE_RESP) {
768 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss changed ap probe resp\n");
769 skb = ieee80211_proberesp_get(hw, vif);
770 if (!skb) {
771 wcn36xx_err("failed to alloc probereq skb\n");
772 goto out;
773 }
774
775 wcn36xx_smd_update_proberesp_tmpl(wcn, vif, skb);
776 dev_kfree_skb(skb);
777 }
778
779 if (changed & BSS_CHANGED_BEACON_ENABLED ||
780 changed & BSS_CHANGED_BEACON) {
781 wcn36xx_dbg(WCN36XX_DBG_MAC,
782 "mac bss changed beacon enabled %d\n",
783 bss_conf->enable_beacon);
784
785 if (bss_conf->enable_beacon) {
786 vif_priv->dtim_period = bss_conf->dtim_period;
787 vif_priv->bss_index = WCN36XX_HAL_BSS_INVALID_IDX;
788 wcn36xx_smd_config_bss(wcn, vif, NULL,
789 vif->addr, false);
790 skb = ieee80211_beacon_get_tim(hw, vif, &tim_off,
791 &tim_len);
792 if (!skb) {
793 wcn36xx_err("failed to alloc beacon skb\n");
794 goto out;
795 }
796 wcn36xx_smd_send_beacon(wcn, vif, skb, tim_off, 0);
797 dev_kfree_skb(skb);
798
799 if (vif->type == NL80211_IFTYPE_ADHOC ||
800 vif->type == NL80211_IFTYPE_MESH_POINT)
801 link_state = WCN36XX_HAL_LINK_IBSS_STATE;
802 else
803 link_state = WCN36XX_HAL_LINK_AP_STATE;
804
805 wcn36xx_smd_set_link_st(wcn, vif->addr, vif->addr,
806 link_state);
807 } else {
808 wcn36xx_smd_delete_bss(wcn, vif);
809 wcn36xx_smd_set_link_st(wcn, vif->addr, vif->addr,
810 WCN36XX_HAL_LINK_IDLE_STATE);
811 }
812 }
813out:
814 return;
815}
816
817
818static int wcn36xx_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
819{
820 struct wcn36xx *wcn = hw->priv;
821 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac set RTS threshold %d\n", value);
822
823 wcn36xx_smd_update_cfg(wcn, WCN36XX_HAL_CFG_RTS_THRESHOLD, value);
824 return 0;
825}
826
827static void wcn36xx_remove_interface(struct ieee80211_hw *hw,
828 struct ieee80211_vif *vif)
829{
830 struct wcn36xx *wcn = hw->priv;
831 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
832 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac remove interface vif %p\n", vif);
833
834 list_del(&vif_priv->list);
835 wcn36xx_smd_delete_sta_self(wcn, vif->addr);
836}
837
838static int wcn36xx_add_interface(struct ieee80211_hw *hw,
839 struct ieee80211_vif *vif)
840{
841 struct wcn36xx *wcn = hw->priv;
842 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
843
844 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac add interface vif %p type %d\n",
845 vif, vif->type);
846
847 if (!(NL80211_IFTYPE_STATION == vif->type ||
848 NL80211_IFTYPE_AP == vif->type ||
849 NL80211_IFTYPE_ADHOC == vif->type ||
850 NL80211_IFTYPE_MESH_POINT == vif->type)) {
851 wcn36xx_warn("Unsupported interface type requested: %d\n",
852 vif->type);
853 return -EOPNOTSUPP;
854 }
855
856 list_add(&vif_priv->list, &wcn->vif_list);
857 wcn36xx_smd_add_sta_self(wcn, vif);
858
859 return 0;
860}
861
862static int wcn36xx_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
863 struct ieee80211_sta *sta)
864{
865 struct wcn36xx *wcn = hw->priv;
866 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
867 struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(sta);
868 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac sta add vif %p sta %pM\n",
869 vif, sta->addr);
870
871 spin_lock_init(&sta_priv->ampdu_lock);
872 sta_priv->vif = vif_priv;
873
874
875
876
877 if (NL80211_IFTYPE_STATION != vif->type) {
878 wcn36xx_update_allowed_rates(sta, WCN36XX_BAND(wcn));
879 sta_priv->aid = sta->aid;
880 wcn36xx_smd_config_sta(wcn, vif, sta);
881 }
882 return 0;
883}
884
885static int wcn36xx_sta_remove(struct ieee80211_hw *hw,
886 struct ieee80211_vif *vif,
887 struct ieee80211_sta *sta)
888{
889 struct wcn36xx *wcn = hw->priv;
890 struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(sta);
891
892 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac sta remove vif %p sta %pM index %d\n",
893 vif, sta->addr, sta_priv->sta_index);
894
895 wcn36xx_smd_delete_sta(wcn, sta_priv->sta_index);
896 sta_priv->vif = NULL;
897 return 0;
898}
899
900#ifdef CONFIG_PM
901
902static int wcn36xx_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wow)
903{
904 struct wcn36xx *wcn = hw->priv;
905
906 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac suspend\n");
907
908 flush_workqueue(wcn->hal_ind_wq);
909 wcn36xx_smd_set_power_params(wcn, true);
910 return 0;
911}
912
913static int wcn36xx_resume(struct ieee80211_hw *hw)
914{
915 struct wcn36xx *wcn = hw->priv;
916
917 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac resume\n");
918
919 flush_workqueue(wcn->hal_ind_wq);
920 wcn36xx_smd_set_power_params(wcn, false);
921 return 0;
922}
923
924#endif
925
926static int wcn36xx_ampdu_action(struct ieee80211_hw *hw,
927 struct ieee80211_vif *vif,
928 struct ieee80211_ampdu_params *params)
929{
930 struct wcn36xx *wcn = hw->priv;
931 struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(params->sta);
932 struct ieee80211_sta *sta = params->sta;
933 enum ieee80211_ampdu_mlme_action action = params->action;
934 u16 tid = params->tid;
935 u16 *ssn = ¶ms->ssn;
936
937 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac ampdu action action %d tid %d\n",
938 action, tid);
939
940 switch (action) {
941 case IEEE80211_AMPDU_RX_START:
942 sta_priv->tid = tid;
943 wcn36xx_smd_add_ba_session(wcn, sta, tid, ssn, 0,
944 get_sta_index(vif, sta_priv));
945 wcn36xx_smd_add_ba(wcn);
946 wcn36xx_smd_trigger_ba(wcn, get_sta_index(vif, sta_priv));
947 break;
948 case IEEE80211_AMPDU_RX_STOP:
949 wcn36xx_smd_del_ba(wcn, tid, get_sta_index(vif, sta_priv));
950 break;
951 case IEEE80211_AMPDU_TX_START:
952 spin_lock_bh(&sta_priv->ampdu_lock);
953 sta_priv->ampdu_state[tid] = WCN36XX_AMPDU_START;
954 spin_unlock_bh(&sta_priv->ampdu_lock);
955
956 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
957 break;
958 case IEEE80211_AMPDU_TX_OPERATIONAL:
959 spin_lock_bh(&sta_priv->ampdu_lock);
960 sta_priv->ampdu_state[tid] = WCN36XX_AMPDU_OPERATIONAL;
961 spin_unlock_bh(&sta_priv->ampdu_lock);
962
963 wcn36xx_smd_add_ba_session(wcn, sta, tid, ssn, 1,
964 get_sta_index(vif, sta_priv));
965 break;
966 case IEEE80211_AMPDU_TX_STOP_FLUSH:
967 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
968 case IEEE80211_AMPDU_TX_STOP_CONT:
969 spin_lock_bh(&sta_priv->ampdu_lock);
970 sta_priv->ampdu_state[tid] = WCN36XX_AMPDU_NONE;
971 spin_unlock_bh(&sta_priv->ampdu_lock);
972
973 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
974 break;
975 default:
976 wcn36xx_err("Unknown AMPDU action\n");
977 }
978
979 return 0;
980}
981
982static const struct ieee80211_ops wcn36xx_ops = {
983 .start = wcn36xx_start,
984 .stop = wcn36xx_stop,
985 .add_interface = wcn36xx_add_interface,
986 .remove_interface = wcn36xx_remove_interface,
987#ifdef CONFIG_PM
988 .suspend = wcn36xx_suspend,
989 .resume = wcn36xx_resume,
990#endif
991 .config = wcn36xx_config,
992 .prepare_multicast = wcn36xx_prepare_multicast,
993 .configure_filter = wcn36xx_configure_filter,
994 .tx = wcn36xx_tx,
995 .set_key = wcn36xx_set_key,
996 .sw_scan_start = wcn36xx_sw_scan_start,
997 .sw_scan_complete = wcn36xx_sw_scan_complete,
998 .bss_info_changed = wcn36xx_bss_info_changed,
999 .set_rts_threshold = wcn36xx_set_rts_threshold,
1000 .sta_add = wcn36xx_sta_add,
1001 .sta_remove = wcn36xx_sta_remove,
1002 .ampdu_action = wcn36xx_ampdu_action,
1003};
1004
1005static int wcn36xx_init_ieee80211(struct wcn36xx *wcn)
1006{
1007 int ret = 0;
1008
1009 static const u32 cipher_suites[] = {
1010 WLAN_CIPHER_SUITE_WEP40,
1011 WLAN_CIPHER_SUITE_WEP104,
1012 WLAN_CIPHER_SUITE_TKIP,
1013 WLAN_CIPHER_SUITE_CCMP,
1014 };
1015
1016 ieee80211_hw_set(wcn->hw, TIMING_BEACON_ONLY);
1017 ieee80211_hw_set(wcn->hw, AMPDU_AGGREGATION);
1018 ieee80211_hw_set(wcn->hw, CONNECTION_MONITOR);
1019 ieee80211_hw_set(wcn->hw, SUPPORTS_PS);
1020 ieee80211_hw_set(wcn->hw, SIGNAL_DBM);
1021 ieee80211_hw_set(wcn->hw, HAS_RATE_CONTROL);
1022
1023 wcn->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
1024 BIT(NL80211_IFTYPE_AP) |
1025 BIT(NL80211_IFTYPE_ADHOC) |
1026 BIT(NL80211_IFTYPE_MESH_POINT);
1027
1028 wcn->hw->wiphy->bands[NL80211_BAND_2GHZ] = &wcn_band_2ghz;
1029 wcn->hw->wiphy->bands[NL80211_BAND_5GHZ] = &wcn_band_5ghz;
1030
1031 wcn->hw->wiphy->cipher_suites = cipher_suites;
1032 wcn->hw->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
1033
1034 wcn->hw->wiphy->flags |= WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD;
1035
1036#ifdef CONFIG_PM
1037 wcn->hw->wiphy->wowlan = &wowlan_support;
1038#endif
1039
1040 wcn->hw->max_listen_interval = 200;
1041
1042 wcn->hw->queues = 4;
1043
1044 SET_IEEE80211_DEV(wcn->hw, wcn->dev);
1045
1046 wcn->hw->sta_data_size = sizeof(struct wcn36xx_sta);
1047 wcn->hw->vif_data_size = sizeof(struct wcn36xx_vif);
1048
1049 return ret;
1050}
1051
1052static int wcn36xx_platform_get_resources(struct wcn36xx *wcn,
1053 struct platform_device *pdev)
1054{
1055 struct device_node *mmio_node;
1056 struct resource *res;
1057 int index;
1058 int ret;
1059
1060
1061 res = platform_get_resource_byname(pdev, IORESOURCE_IRQ,
1062 "wcnss_wlantx_irq");
1063 if (!res) {
1064 wcn36xx_err("failed to get tx_irq\n");
1065 return -ENOENT;
1066 }
1067 wcn->tx_irq = res->start;
1068
1069
1070 res = platform_get_resource_byname(pdev, IORESOURCE_IRQ,
1071 "wcnss_wlanrx_irq");
1072 if (!res) {
1073 wcn36xx_err("failed to get rx_irq\n");
1074 return -ENOENT;
1075 }
1076 wcn->rx_irq = res->start;
1077
1078 mmio_node = of_parse_phandle(pdev->dev.parent->of_node, "qcom,mmio", 0);
1079 if (!mmio_node) {
1080 wcn36xx_err("failed to acquire qcom,mmio reference\n");
1081 return -EINVAL;
1082 }
1083
1084 wcn->is_pronto = !!of_device_is_compatible(mmio_node, "qcom,pronto");
1085
1086
1087 index = of_property_match_string(mmio_node, "reg-names", "ccu");
1088 wcn->ccu_base = of_iomap(mmio_node, index);
1089 if (!wcn->ccu_base) {
1090 wcn36xx_err("failed to map ccu memory\n");
1091 ret = -ENOMEM;
1092 goto put_mmio_node;
1093 }
1094
1095
1096 index = of_property_match_string(mmio_node, "reg-names", "dxe");
1097 wcn->dxe_base = of_iomap(mmio_node, index);
1098 if (!wcn->dxe_base) {
1099 wcn36xx_err("failed to map dxe memory\n");
1100 ret = -ENOMEM;
1101 goto unmap_ccu;
1102 }
1103
1104 of_node_put(mmio_node);
1105 return 0;
1106
1107unmap_ccu:
1108 iounmap(wcn->ccu_base);
1109put_mmio_node:
1110 of_node_put(mmio_node);
1111 return ret;
1112}
1113
1114static int wcn36xx_probe(struct platform_device *pdev)
1115{
1116 struct ieee80211_hw *hw;
1117 struct wcn36xx *wcn;
1118 int ret;
1119 u8 addr[ETH_ALEN];
1120
1121 wcn36xx_dbg(WCN36XX_DBG_MAC, "platform probe\n");
1122
1123 hw = ieee80211_alloc_hw(sizeof(struct wcn36xx), &wcn36xx_ops);
1124 if (!hw) {
1125 wcn36xx_err("failed to alloc hw\n");
1126 ret = -ENOMEM;
1127 goto out_err;
1128 }
1129 platform_set_drvdata(pdev, hw);
1130 wcn = hw->priv;
1131 wcn->hw = hw;
1132 wcn->dev = &pdev->dev;
1133 wcn->ctrl_ops = pdev->dev.platform_data;
1134
1135 mutex_init(&wcn->hal_mutex);
1136
1137 if (!wcn->ctrl_ops->get_hw_mac(addr)) {
1138 wcn36xx_info("mac address: %pM\n", addr);
1139 SET_IEEE80211_PERM_ADDR(wcn->hw, addr);
1140 }
1141
1142 ret = wcn36xx_platform_get_resources(wcn, pdev);
1143 if (ret)
1144 goto out_wq;
1145
1146 wcn36xx_init_ieee80211(wcn);
1147 ret = ieee80211_register_hw(wcn->hw);
1148 if (ret)
1149 goto out_unmap;
1150
1151 return 0;
1152
1153out_unmap:
1154 iounmap(wcn->ccu_base);
1155 iounmap(wcn->dxe_base);
1156out_wq:
1157 ieee80211_free_hw(hw);
1158out_err:
1159 return ret;
1160}
1161static int wcn36xx_remove(struct platform_device *pdev)
1162{
1163 struct ieee80211_hw *hw = platform_get_drvdata(pdev);
1164 struct wcn36xx *wcn = hw->priv;
1165 wcn36xx_dbg(WCN36XX_DBG_MAC, "platform remove\n");
1166
1167 release_firmware(wcn->nv);
1168 mutex_destroy(&wcn->hal_mutex);
1169
1170 ieee80211_unregister_hw(hw);
1171 iounmap(wcn->dxe_base);
1172 iounmap(wcn->ccu_base);
1173 ieee80211_free_hw(hw);
1174
1175 return 0;
1176}
1177static const struct platform_device_id wcn36xx_platform_id_table[] = {
1178 {
1179 .name = "wcn36xx",
1180 .driver_data = 0
1181 },
1182 {}
1183};
1184MODULE_DEVICE_TABLE(platform, wcn36xx_platform_id_table);
1185
1186static struct platform_driver wcn36xx_driver = {
1187 .probe = wcn36xx_probe,
1188 .remove = wcn36xx_remove,
1189 .driver = {
1190 .name = "wcn36xx",
1191 },
1192 .id_table = wcn36xx_platform_id_table,
1193};
1194
1195static int __init wcn36xx_init(void)
1196{
1197 platform_driver_register(&wcn36xx_driver);
1198 return 0;
1199}
1200module_init(wcn36xx_init);
1201
1202static void __exit wcn36xx_exit(void)
1203{
1204 platform_driver_unregister(&wcn36xx_driver);
1205}
1206module_exit(wcn36xx_exit);
1207
1208MODULE_LICENSE("Dual BSD/GPL");
1209MODULE_AUTHOR("Eugene Krasnikov k.eugene.e@gmail.com");
1210MODULE_FIRMWARE(WLAN_NV_FILE);
1211
