2 * Copyright (c) 2013 Eugene Krasnikov <k.eugene.e@gmail.com>
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
11 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
13 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
14 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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>
26 unsigned int wcn36xx_dbg_mask;
27 module_param_named(debug_mask, wcn36xx_dbg_mask, uint, 0644);
28 MODULE_PARM_DESC(debug_mask, "Debugging mask");
30 #define CHAN2G(_freq, _idx) { \
31 .band = NL80211_BAND_2GHZ, \
32 .center_freq = (_freq), \
37 #define CHAN5G(_freq, _idx) { \
38 .band = NL80211_BAND_5GHZ, \
39 .center_freq = (_freq), \
44 /* The wcn firmware expects channel values to matching
45 * their mnemonic values. So use these for .hw_value. */
46 static struct ieee80211_channel wcn_2ghz_channels[] = {
47 CHAN2G(2412, 1), /* Channel 1 */
48 CHAN2G(2417, 2), /* Channel 2 */
49 CHAN2G(2422, 3), /* Channel 3 */
50 CHAN2G(2427, 4), /* Channel 4 */
51 CHAN2G(2432, 5), /* Channel 5 */
52 CHAN2G(2437, 6), /* Channel 6 */
53 CHAN2G(2442, 7), /* Channel 7 */
54 CHAN2G(2447, 8), /* Channel 8 */
55 CHAN2G(2452, 9), /* Channel 9 */
56 CHAN2G(2457, 10), /* Channel 10 */
57 CHAN2G(2462, 11), /* Channel 11 */
58 CHAN2G(2467, 12), /* Channel 12 */
59 CHAN2G(2472, 13), /* Channel 13 */
60 CHAN2G(2484, 14) /* Channel 14 */
64 static struct ieee80211_channel wcn_5ghz_channels[] = {
90 #define RATE(_bitrate, _hw_rate, _flags) { \
91 .bitrate = (_bitrate), \
93 .hw_value = (_hw_rate), \
94 .hw_value_short = (_hw_rate) \
97 static 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)
112 static 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)
123 static 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),
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 IEEE80211_HT_CAP_SGI_40 |
134 IEEE80211_HT_CAP_SUP_WIDTH_20_40,
135 .ht_supported = true,
136 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K,
137 .ampdu_density = IEEE80211_HT_MPDU_DENSITY_16,
139 .rx_mask = { 0xff, 0, 0, 0, 0, 0, 0, 0, 0, 0, },
140 .rx_highest = cpu_to_le16(72),
141 .tx_params = IEEE80211_HT_MCS_TX_DEFINED,
146 static struct ieee80211_supported_band wcn_band_5ghz = {
147 .channels = wcn_5ghz_channels,
148 .n_channels = ARRAY_SIZE(wcn_5ghz_channels),
149 .bitrates = wcn_5ghz_rates,
150 .n_bitrates = ARRAY_SIZE(wcn_5ghz_rates),
152 .cap = IEEE80211_HT_CAP_GRN_FLD |
153 IEEE80211_HT_CAP_SGI_20 |
154 IEEE80211_HT_CAP_DSSSCCK40 |
155 IEEE80211_HT_CAP_LSIG_TXOP_PROT |
156 IEEE80211_HT_CAP_SGI_40 |
157 IEEE80211_HT_CAP_SUP_WIDTH_20_40,
158 .ht_supported = true,
159 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K,
160 .ampdu_density = IEEE80211_HT_MPDU_DENSITY_16,
162 .rx_mask = { 0xff, 0, 0, 0, 0, 0, 0, 0, 0, 0, },
163 .rx_highest = cpu_to_le16(150),
164 .tx_params = IEEE80211_HT_MCS_TX_DEFINED,
171 static const struct wiphy_wowlan_support wowlan_support = {
172 .flags = WIPHY_WOWLAN_ANY
177 static inline u8 get_sta_index(struct ieee80211_vif *vif,
178 struct wcn36xx_sta *sta_priv)
180 return NL80211_IFTYPE_STATION == vif->type ?
181 sta_priv->bss_sta_index :
185 static const char * const wcn36xx_caps_names[] = {
189 "SLM_SESSIONIZATION", /* 3 */
190 "DOT11AC_OPMODE", /* 4 */
193 "P2P_GO_NOA_DECOUPLE_INIT_SCAN",/* 7 */
194 "WLANACTIVE_OFFLOAD", /* 8 */
195 "BEACON_OFFLOAD", /* 9 */
196 "SCAN_OFFLOAD", /* 10 */
197 "ROAM_OFFLOAD", /* 11 */
198 "BCN_MISS_OFFLOAD", /* 12 */
199 "STA_POWERSAVE", /* 13 */
200 "STA_ADVANCED_PWRSAVE", /* 14 */
205 "BCN_FILTER", /* 19 */
209 "WLAN_ROAM_SCAN_OFFLOAD", /* 23 */
210 "SPECULATIVE_PS_POLL", /* 24 */
212 "IBSS_HEARTBEAT_OFFLOAD", /* 26 */
213 "WLAN_SCAN_OFFLOAD", /* 27 */
214 "WLAN_PERIODIC_TX_PTRN", /* 28 */
215 "ADVANCE_TDLS", /* 29 */
216 "BATCH_SCAN", /* 30 */
217 "FW_IN_TX_PATH", /* 31 */
218 "EXTENDED_NSOFFLOAD_SLOT", /* 32 */
219 "CH_SWITCH_V1", /* 33 */
220 "HT40_OBSS_SCAN", /* 34 */
221 "UPDATE_CHANNEL_LIST", /* 35 */
222 "WLAN_MCADDR_FLT", /* 36 */
223 "WLAN_CH144", /* 37 */
225 "TDLS_SCAN_COEXISTENCE", /* 39 */
226 "LINK_LAYER_STATS_MEAS", /* 40 */
228 "EXTENDED_SCAN", /* 42 */
229 "DYNAMIC_WMM_PS", /* 43 */
230 "MAC_SPOOFED_SCAN", /* 44 */
231 "BMU_ERROR_GENERIC_RECOVERY", /* 45 */
234 "WPS_PRBRSP_TMPL", /* 48 */
235 "BCN_IE_FLT_DELTA", /* 49 */
236 "TDLS_OFF_CHANNEL", /* 51 */
238 "MGMT_FRAME_LOGGING", /* 53 */
239 "ENHANCED_TXBD_COMPLETION", /* 54 */
240 "LOGGING_ENHANCEMENT", /* 55 */
241 "EXT_SCAN_ENHANCED", /* 56 */
242 "MEMORY_DUMP_SUPPORTED", /* 57 */
243 "PER_PKT_STATS_SUPPORTED", /* 58 */
244 "EXT_LL_STAT", /* 60 */
245 "WIFI_CONFIG", /* 61 */
246 "ANTENNA_DIVERSITY_SELECTION", /* 62 */
249 static const char *wcn36xx_get_cap_name(enum place_holder_in_cap_bitmap x)
251 if (x >= ARRAY_SIZE(wcn36xx_caps_names))
253 return wcn36xx_caps_names[x];
256 static void wcn36xx_feat_caps_info(struct wcn36xx *wcn)
260 for (i = 0; i < MAX_FEATURE_SUPPORTED; i++) {
261 if (get_feat_caps(wcn->fw_feat_caps, i))
262 wcn36xx_info("FW Cap %s\n", wcn36xx_get_cap_name(i));
266 static int wcn36xx_start(struct ieee80211_hw *hw)
268 struct wcn36xx *wcn = hw->priv;
271 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac start\n");
273 /* SMD initialization */
274 ret = wcn36xx_smd_open(wcn);
276 wcn36xx_err("Failed to open smd channel: %d\n", ret);
280 /* Allocate memory pools for Mgmt BD headers and Data BD headers */
281 ret = wcn36xx_dxe_allocate_mem_pools(wcn);
283 wcn36xx_err("Failed to alloc DXE mempool: %d\n", ret);
287 ret = wcn36xx_dxe_alloc_ctl_blks(wcn);
289 wcn36xx_err("Failed to alloc DXE ctl blocks: %d\n", ret);
290 goto out_free_dxe_pool;
293 wcn->hal_buf = kmalloc(WCN36XX_HAL_BUF_SIZE, GFP_KERNEL);
295 wcn36xx_err("Failed to allocate smd buf\n");
297 goto out_free_dxe_ctl;
300 ret = wcn36xx_smd_load_nv(wcn);
302 wcn36xx_err("Failed to push NV to chip\n");
303 goto out_free_smd_buf;
306 ret = wcn36xx_smd_start(wcn);
308 wcn36xx_err("Failed to start chip\n");
309 goto out_free_smd_buf;
312 if (!wcn36xx_is_fw_version(wcn, 1, 2, 2, 24)) {
313 ret = wcn36xx_smd_feature_caps_exchange(wcn);
315 wcn36xx_warn("Exchange feature caps failed\n");
317 wcn36xx_feat_caps_info(wcn);
320 /* DMA channel initialization */
321 ret = wcn36xx_dxe_init(wcn);
323 wcn36xx_err("DXE init failed\n");
327 wcn36xx_debugfs_init(wcn);
329 INIT_LIST_HEAD(&wcn->vif_list);
330 spin_lock_init(&wcn->dxe_lock);
335 wcn36xx_smd_stop(wcn);
339 wcn36xx_dxe_free_mem_pools(wcn);
341 wcn36xx_dxe_free_ctl_blks(wcn);
343 wcn36xx_smd_close(wcn);
348 static void wcn36xx_stop(struct ieee80211_hw *hw)
350 struct wcn36xx *wcn = hw->priv;
352 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac stop\n");
354 wcn36xx_debugfs_exit(wcn);
355 wcn36xx_smd_stop(wcn);
356 wcn36xx_dxe_deinit(wcn);
357 wcn36xx_smd_close(wcn);
359 wcn36xx_dxe_free_mem_pools(wcn);
360 wcn36xx_dxe_free_ctl_blks(wcn);
365 static int wcn36xx_config(struct ieee80211_hw *hw, u32 changed)
367 struct wcn36xx *wcn = hw->priv;
368 struct ieee80211_vif *vif = NULL;
369 struct wcn36xx_vif *tmp;
371 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac config changed 0x%08x\n", changed);
373 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
374 int ch = WCN36XX_HW_CHANNEL(wcn);
375 wcn36xx_dbg(WCN36XX_DBG_MAC, "wcn36xx_config channel switch=%d\n",
377 list_for_each_entry(tmp, &wcn->vif_list, list) {
378 vif = wcn36xx_priv_to_vif(tmp);
379 wcn36xx_smd_switch_channel(wcn, vif, ch);
386 static void wcn36xx_configure_filter(struct ieee80211_hw *hw,
387 unsigned int changed,
388 unsigned int *total, u64 multicast)
390 struct wcn36xx_hal_rcv_flt_mc_addr_list_type *fp;
391 struct wcn36xx *wcn = hw->priv;
392 struct wcn36xx_vif *tmp;
393 struct ieee80211_vif *vif = NULL;
395 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac configure filter\n");
397 *total &= FIF_ALLMULTI;
399 fp = (void *)(unsigned long)multicast;
400 list_for_each_entry(tmp, &wcn->vif_list, list) {
401 vif = wcn36xx_priv_to_vif(tmp);
403 /* FW handles MC filtering only when connected as STA */
404 if (*total & FIF_ALLMULTI)
405 wcn36xx_smd_set_mc_list(wcn, vif, NULL);
406 else if (NL80211_IFTYPE_STATION == vif->type && tmp->sta_assoc)
407 wcn36xx_smd_set_mc_list(wcn, vif, fp);
412 static u64 wcn36xx_prepare_multicast(struct ieee80211_hw *hw,
413 struct netdev_hw_addr_list *mc_list)
415 struct wcn36xx_hal_rcv_flt_mc_addr_list_type *fp;
416 struct netdev_hw_addr *ha;
418 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac prepare multicast list\n");
419 fp = kzalloc(sizeof(*fp), GFP_ATOMIC);
421 wcn36xx_err("Out of memory setting filters.\n");
425 fp->mc_addr_count = 0;
426 /* update multicast filtering parameters */
427 if (netdev_hw_addr_list_count(mc_list) <=
428 WCN36XX_HAL_MAX_NUM_MULTICAST_ADDRESS) {
429 netdev_hw_addr_list_for_each(ha, mc_list) {
430 memcpy(fp->mc_addr[fp->mc_addr_count],
436 return (u64)(unsigned long)fp;
439 static void wcn36xx_tx(struct ieee80211_hw *hw,
440 struct ieee80211_tx_control *control,
443 struct wcn36xx *wcn = hw->priv;
444 struct wcn36xx_sta *sta_priv = NULL;
447 sta_priv = wcn36xx_sta_to_priv(control->sta);
449 if (wcn36xx_start_tx(wcn, sta_priv, skb))
450 ieee80211_free_txskb(wcn->hw, skb);
453 static int wcn36xx_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
454 struct ieee80211_vif *vif,
455 struct ieee80211_sta *sta,
456 struct ieee80211_key_conf *key_conf)
458 struct wcn36xx *wcn = hw->priv;
459 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
460 struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(sta);
462 u8 key[WLAN_MAX_KEY_LEN];
464 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac80211 set key\n");
465 wcn36xx_dbg(WCN36XX_DBG_MAC, "Key: cmd=0x%x algo:0x%x, id:%d, len:%d flags 0x%x\n",
466 cmd, key_conf->cipher, key_conf->keyidx,
467 key_conf->keylen, key_conf->flags);
468 wcn36xx_dbg_dump(WCN36XX_DBG_MAC, "KEY: ",
472 switch (key_conf->cipher) {
473 case WLAN_CIPHER_SUITE_WEP40:
474 vif_priv->encrypt_type = WCN36XX_HAL_ED_WEP40;
476 case WLAN_CIPHER_SUITE_WEP104:
477 vif_priv->encrypt_type = WCN36XX_HAL_ED_WEP40;
479 case WLAN_CIPHER_SUITE_CCMP:
480 vif_priv->encrypt_type = WCN36XX_HAL_ED_CCMP;
482 case WLAN_CIPHER_SUITE_TKIP:
483 vif_priv->encrypt_type = WCN36XX_HAL_ED_TKIP;
486 wcn36xx_err("Unsupported key type 0x%x\n",
494 if (WCN36XX_HAL_ED_TKIP == vif_priv->encrypt_type) {
496 * Supplicant is sending key in the wrong order:
497 * Temporal Key (16 b) - TX MIC (8 b) - RX MIC (8 b)
498 * but HW expects it to be in the order as described in
499 * IEEE 802.11 spec (see chapter 11.7) like this:
500 * Temporal Key (16 b) - RX MIC (8 b) - TX MIC (8 b)
502 memcpy(key, key_conf->key, 16);
503 memcpy(key + 16, key_conf->key + 24, 8);
504 memcpy(key + 24, key_conf->key + 16, 8);
506 memcpy(key, key_conf->key, key_conf->keylen);
509 if (IEEE80211_KEY_FLAG_PAIRWISE & key_conf->flags) {
510 sta_priv->is_data_encrypted = true;
511 /* Reconfigure bss with encrypt_type */
512 if (NL80211_IFTYPE_STATION == vif->type)
513 wcn36xx_smd_config_bss(wcn,
519 wcn36xx_smd_set_stakey(wcn,
520 vif_priv->encrypt_type,
524 get_sta_index(vif, sta_priv));
526 wcn36xx_smd_set_bsskey(wcn,
527 vif_priv->encrypt_type,
531 if ((WLAN_CIPHER_SUITE_WEP40 == key_conf->cipher) ||
532 (WLAN_CIPHER_SUITE_WEP104 == key_conf->cipher)) {
533 sta_priv->is_data_encrypted = true;
534 wcn36xx_smd_set_stakey(wcn,
535 vif_priv->encrypt_type,
539 get_sta_index(vif, sta_priv));
544 if (!(IEEE80211_KEY_FLAG_PAIRWISE & key_conf->flags)) {
545 vif_priv->encrypt_type = WCN36XX_HAL_ED_NONE;
546 wcn36xx_smd_remove_bsskey(wcn,
547 vif_priv->encrypt_type,
550 sta_priv->is_data_encrypted = false;
551 /* do not remove key if disassociated */
553 wcn36xx_smd_remove_stakey(wcn,
554 vif_priv->encrypt_type,
556 get_sta_index(vif, sta_priv));
560 wcn36xx_err("Unsupported key cmd 0x%x\n", cmd);
569 static void wcn36xx_sw_scan_start(struct ieee80211_hw *hw,
570 struct ieee80211_vif *vif,
573 struct wcn36xx *wcn = hw->priv;
575 wcn36xx_smd_init_scan(wcn, HAL_SYS_MODE_SCAN);
576 wcn36xx_smd_start_scan(wcn);
579 static void wcn36xx_sw_scan_complete(struct ieee80211_hw *hw,
580 struct ieee80211_vif *vif)
582 struct wcn36xx *wcn = hw->priv;
584 wcn36xx_smd_end_scan(wcn);
585 wcn36xx_smd_finish_scan(wcn, HAL_SYS_MODE_SCAN);
588 static void wcn36xx_update_allowed_rates(struct ieee80211_sta *sta,
589 enum nl80211_band band)
593 struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(sta);
594 u32 rates = sta->supp_rates[band];
596 memset(&sta_priv->supported_rates, 0,
597 sizeof(sta_priv->supported_rates));
598 sta_priv->supported_rates.op_rate_mode = STA_11n;
600 size = ARRAY_SIZE(sta_priv->supported_rates.dsss_rates);
601 rates_table = sta_priv->supported_rates.dsss_rates;
602 if (band == NL80211_BAND_2GHZ) {
603 for (i = 0; i < size; i++) {
605 rates_table[i] = wcn_2ghz_rates[i].hw_value;
611 size = ARRAY_SIZE(sta_priv->supported_rates.ofdm_rates);
612 rates_table = sta_priv->supported_rates.ofdm_rates;
613 for (i = 0; i < size; i++) {
615 rates_table[i] = wcn_5ghz_rates[i].hw_value;
620 if (sta->ht_cap.ht_supported) {
621 BUILD_BUG_ON(sizeof(sta->ht_cap.mcs.rx_mask) >
622 sizeof(sta_priv->supported_rates.supported_mcs_set));
623 memcpy(sta_priv->supported_rates.supported_mcs_set,
624 sta->ht_cap.mcs.rx_mask,
625 sizeof(sta->ht_cap.mcs.rx_mask));
628 void wcn36xx_set_default_rates(struct wcn36xx_hal_supported_rates *rates)
630 u16 ofdm_rates[WCN36XX_HAL_NUM_OFDM_RATES] = {
633 HW_RATE_INDEX_12MBPS,
634 HW_RATE_INDEX_18MBPS,
635 HW_RATE_INDEX_24MBPS,
636 HW_RATE_INDEX_36MBPS,
637 HW_RATE_INDEX_48MBPS,
640 u16 dsss_rates[WCN36XX_HAL_NUM_DSSS_RATES] = {
643 HW_RATE_INDEX_5_5MBPS,
647 rates->op_rate_mode = STA_11n;
648 memcpy(rates->dsss_rates, dsss_rates,
649 sizeof(*dsss_rates) * WCN36XX_HAL_NUM_DSSS_RATES);
650 memcpy(rates->ofdm_rates, ofdm_rates,
651 sizeof(*ofdm_rates) * WCN36XX_HAL_NUM_OFDM_RATES);
652 rates->supported_mcs_set[0] = 0xFF;
654 static void wcn36xx_bss_info_changed(struct ieee80211_hw *hw,
655 struct ieee80211_vif *vif,
656 struct ieee80211_bss_conf *bss_conf,
659 struct wcn36xx *wcn = hw->priv;
660 struct sk_buff *skb = NULL;
661 u16 tim_off, tim_len;
662 enum wcn36xx_hal_link_state link_state;
663 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
665 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss info changed vif %p changed 0x%08x\n",
668 if (changed & BSS_CHANGED_BEACON_INFO) {
669 wcn36xx_dbg(WCN36XX_DBG_MAC,
670 "mac bss changed dtim period %d\n",
671 bss_conf->dtim_period);
673 vif_priv->dtim_period = bss_conf->dtim_period;
676 if (changed & BSS_CHANGED_PS) {
677 wcn36xx_dbg(WCN36XX_DBG_MAC,
678 "mac bss PS set %d\n",
681 wcn36xx_pmc_enter_bmps_state(wcn, vif);
683 wcn36xx_pmc_exit_bmps_state(wcn, vif);
687 if (changed & BSS_CHANGED_BSSID) {
688 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss changed_bssid %pM\n",
691 if (!is_zero_ether_addr(bss_conf->bssid)) {
692 vif_priv->is_joining = true;
693 vif_priv->bss_index = WCN36XX_HAL_BSS_INVALID_IDX;
694 wcn36xx_smd_join(wcn, bss_conf->bssid,
695 vif->addr, WCN36XX_HW_CHANNEL(wcn));
696 wcn36xx_smd_config_bss(wcn, vif, NULL,
697 bss_conf->bssid, false);
699 vif_priv->is_joining = false;
700 wcn36xx_smd_delete_bss(wcn, vif);
701 vif_priv->encrypt_type = WCN36XX_HAL_ED_NONE;
705 if (changed & BSS_CHANGED_SSID) {
706 wcn36xx_dbg(WCN36XX_DBG_MAC,
707 "mac bss changed ssid\n");
708 wcn36xx_dbg_dump(WCN36XX_DBG_MAC, "ssid ",
709 bss_conf->ssid, bss_conf->ssid_len);
711 vif_priv->ssid.length = bss_conf->ssid_len;
712 memcpy(&vif_priv->ssid.ssid,
717 if (changed & BSS_CHANGED_ASSOC) {
718 vif_priv->is_joining = false;
719 if (bss_conf->assoc) {
720 struct ieee80211_sta *sta;
721 struct wcn36xx_sta *sta_priv;
723 wcn36xx_dbg(WCN36XX_DBG_MAC,
724 "mac assoc bss %pM vif %pM AID=%d\n",
729 vif_priv->sta_assoc = true;
731 sta = ieee80211_find_sta(vif, bss_conf->bssid);
733 wcn36xx_err("sta %pM is not found\n",
738 sta_priv = wcn36xx_sta_to_priv(sta);
740 wcn36xx_update_allowed_rates(sta, WCN36XX_BAND(wcn));
742 wcn36xx_smd_set_link_st(wcn, bss_conf->bssid,
744 WCN36XX_HAL_LINK_POSTASSOC_STATE);
745 wcn36xx_smd_config_bss(wcn, vif, sta,
748 sta_priv->aid = bss_conf->aid;
750 * config_sta must be called from because this is the
751 * place where AID is available.
753 wcn36xx_smd_config_sta(wcn, vif, sta);
756 wcn36xx_dbg(WCN36XX_DBG_MAC,
757 "disassociated bss %pM vif %pM AID=%d\n",
761 vif_priv->sta_assoc = false;
762 wcn36xx_smd_set_link_st(wcn,
765 WCN36XX_HAL_LINK_IDLE_STATE);
769 if (changed & BSS_CHANGED_AP_PROBE_RESP) {
770 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss changed ap probe resp\n");
771 skb = ieee80211_proberesp_get(hw, vif);
773 wcn36xx_err("failed to alloc probereq skb\n");
777 wcn36xx_smd_update_proberesp_tmpl(wcn, vif, skb);
781 if (changed & BSS_CHANGED_BEACON_ENABLED ||
782 changed & BSS_CHANGED_BEACON) {
783 wcn36xx_dbg(WCN36XX_DBG_MAC,
784 "mac bss changed beacon enabled %d\n",
785 bss_conf->enable_beacon);
787 if (bss_conf->enable_beacon) {
788 vif_priv->dtim_period = bss_conf->dtim_period;
789 vif_priv->bss_index = WCN36XX_HAL_BSS_INVALID_IDX;
790 wcn36xx_smd_config_bss(wcn, vif, NULL,
792 skb = ieee80211_beacon_get_tim(hw, vif, &tim_off,
795 wcn36xx_err("failed to alloc beacon skb\n");
798 wcn36xx_smd_send_beacon(wcn, vif, skb, tim_off, 0);
801 if (vif->type == NL80211_IFTYPE_ADHOC ||
802 vif->type == NL80211_IFTYPE_MESH_POINT)
803 link_state = WCN36XX_HAL_LINK_IBSS_STATE;
805 link_state = WCN36XX_HAL_LINK_AP_STATE;
807 wcn36xx_smd_set_link_st(wcn, vif->addr, vif->addr,
810 wcn36xx_smd_delete_bss(wcn, vif);
811 wcn36xx_smd_set_link_st(wcn, vif->addr, vif->addr,
812 WCN36XX_HAL_LINK_IDLE_STATE);
819 /* this is required when using IEEE80211_HW_HAS_RATE_CONTROL */
820 static int wcn36xx_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
822 struct wcn36xx *wcn = hw->priv;
823 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac set RTS threshold %d\n", value);
825 wcn36xx_smd_update_cfg(wcn, WCN36XX_HAL_CFG_RTS_THRESHOLD, value);
829 static void wcn36xx_remove_interface(struct ieee80211_hw *hw,
830 struct ieee80211_vif *vif)
832 struct wcn36xx *wcn = hw->priv;
833 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
834 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac remove interface vif %p\n", vif);
836 list_del(&vif_priv->list);
837 wcn36xx_smd_delete_sta_self(wcn, vif->addr);
840 static int wcn36xx_add_interface(struct ieee80211_hw *hw,
841 struct ieee80211_vif *vif)
843 struct wcn36xx *wcn = hw->priv;
844 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
846 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac add interface vif %p type %d\n",
849 if (!(NL80211_IFTYPE_STATION == vif->type ||
850 NL80211_IFTYPE_AP == vif->type ||
851 NL80211_IFTYPE_ADHOC == vif->type ||
852 NL80211_IFTYPE_MESH_POINT == vif->type)) {
853 wcn36xx_warn("Unsupported interface type requested: %d\n",
858 list_add(&vif_priv->list, &wcn->vif_list);
859 wcn36xx_smd_add_sta_self(wcn, vif);
864 static int wcn36xx_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
865 struct ieee80211_sta *sta)
867 struct wcn36xx *wcn = hw->priv;
868 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
869 struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(sta);
870 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac sta add vif %p sta %pM\n",
873 spin_lock_init(&sta_priv->ampdu_lock);
874 sta_priv->vif = vif_priv;
876 * For STA mode HW will be configured on BSS_CHANGED_ASSOC because
877 * at this stage AID is not available yet.
879 if (NL80211_IFTYPE_STATION != vif->type) {
880 wcn36xx_update_allowed_rates(sta, WCN36XX_BAND(wcn));
881 sta_priv->aid = sta->aid;
882 wcn36xx_smd_config_sta(wcn, vif, sta);
887 static int wcn36xx_sta_remove(struct ieee80211_hw *hw,
888 struct ieee80211_vif *vif,
889 struct ieee80211_sta *sta)
891 struct wcn36xx *wcn = hw->priv;
892 struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(sta);
894 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac sta remove vif %p sta %pM index %d\n",
895 vif, sta->addr, sta_priv->sta_index);
897 wcn36xx_smd_delete_sta(wcn, sta_priv->sta_index);
898 sta_priv->vif = NULL;
904 static int wcn36xx_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wow)
906 struct wcn36xx *wcn = hw->priv;
908 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac suspend\n");
910 flush_workqueue(wcn->hal_ind_wq);
911 wcn36xx_smd_set_power_params(wcn, true);
915 static int wcn36xx_resume(struct ieee80211_hw *hw)
917 struct wcn36xx *wcn = hw->priv;
919 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac resume\n");
921 flush_workqueue(wcn->hal_ind_wq);
922 wcn36xx_smd_set_power_params(wcn, false);
928 static int wcn36xx_ampdu_action(struct ieee80211_hw *hw,
929 struct ieee80211_vif *vif,
930 struct ieee80211_ampdu_params *params)
932 struct wcn36xx *wcn = hw->priv;
933 struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(params->sta);
934 struct ieee80211_sta *sta = params->sta;
935 enum ieee80211_ampdu_mlme_action action = params->action;
936 u16 tid = params->tid;
937 u16 *ssn = ¶ms->ssn;
939 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac ampdu action action %d tid %d\n",
943 case IEEE80211_AMPDU_RX_START:
945 wcn36xx_smd_add_ba_session(wcn, sta, tid, ssn, 0,
946 get_sta_index(vif, sta_priv));
947 wcn36xx_smd_add_ba(wcn);
948 wcn36xx_smd_trigger_ba(wcn, get_sta_index(vif, sta_priv));
950 case IEEE80211_AMPDU_RX_STOP:
951 wcn36xx_smd_del_ba(wcn, tid, get_sta_index(vif, sta_priv));
953 case IEEE80211_AMPDU_TX_START:
954 spin_lock_bh(&sta_priv->ampdu_lock);
955 sta_priv->ampdu_state[tid] = WCN36XX_AMPDU_START;
956 spin_unlock_bh(&sta_priv->ampdu_lock);
958 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
960 case IEEE80211_AMPDU_TX_OPERATIONAL:
961 spin_lock_bh(&sta_priv->ampdu_lock);
962 sta_priv->ampdu_state[tid] = WCN36XX_AMPDU_OPERATIONAL;
963 spin_unlock_bh(&sta_priv->ampdu_lock);
965 wcn36xx_smd_add_ba_session(wcn, sta, tid, ssn, 1,
966 get_sta_index(vif, sta_priv));
968 case IEEE80211_AMPDU_TX_STOP_FLUSH:
969 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
970 case IEEE80211_AMPDU_TX_STOP_CONT:
971 spin_lock_bh(&sta_priv->ampdu_lock);
972 sta_priv->ampdu_state[tid] = WCN36XX_AMPDU_NONE;
973 spin_unlock_bh(&sta_priv->ampdu_lock);
975 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
978 wcn36xx_err("Unknown AMPDU action\n");
984 static const struct ieee80211_ops wcn36xx_ops = {
985 .start = wcn36xx_start,
986 .stop = wcn36xx_stop,
987 .add_interface = wcn36xx_add_interface,
988 .remove_interface = wcn36xx_remove_interface,
990 .suspend = wcn36xx_suspend,
991 .resume = wcn36xx_resume,
993 .config = wcn36xx_config,
994 .prepare_multicast = wcn36xx_prepare_multicast,
995 .configure_filter = wcn36xx_configure_filter,
997 .set_key = wcn36xx_set_key,
998 .sw_scan_start = wcn36xx_sw_scan_start,
999 .sw_scan_complete = wcn36xx_sw_scan_complete,
1000 .bss_info_changed = wcn36xx_bss_info_changed,
1001 .set_rts_threshold = wcn36xx_set_rts_threshold,
1002 .sta_add = wcn36xx_sta_add,
1003 .sta_remove = wcn36xx_sta_remove,
1004 .ampdu_action = wcn36xx_ampdu_action,
1007 static int wcn36xx_init_ieee80211(struct wcn36xx *wcn)
1011 static const u32 cipher_suites[] = {
1012 WLAN_CIPHER_SUITE_WEP40,
1013 WLAN_CIPHER_SUITE_WEP104,
1014 WLAN_CIPHER_SUITE_TKIP,
1015 WLAN_CIPHER_SUITE_CCMP,
1018 ieee80211_hw_set(wcn->hw, TIMING_BEACON_ONLY);
1019 ieee80211_hw_set(wcn->hw, AMPDU_AGGREGATION);
1020 ieee80211_hw_set(wcn->hw, CONNECTION_MONITOR);
1021 ieee80211_hw_set(wcn->hw, SUPPORTS_PS);
1022 ieee80211_hw_set(wcn->hw, SIGNAL_DBM);
1023 ieee80211_hw_set(wcn->hw, HAS_RATE_CONTROL);
1025 wcn->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
1026 BIT(NL80211_IFTYPE_AP) |
1027 BIT(NL80211_IFTYPE_ADHOC) |
1028 BIT(NL80211_IFTYPE_MESH_POINT);
1030 wcn->hw->wiphy->bands[NL80211_BAND_2GHZ] = &wcn_band_2ghz;
1031 wcn->hw->wiphy->bands[NL80211_BAND_5GHZ] = &wcn_band_5ghz;
1033 wcn->hw->wiphy->cipher_suites = cipher_suites;
1034 wcn->hw->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
1036 wcn->hw->wiphy->flags |= WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD;
1039 wcn->hw->wiphy->wowlan = &wowlan_support;
1042 wcn->hw->max_listen_interval = 200;
1044 wcn->hw->queues = 4;
1046 SET_IEEE80211_DEV(wcn->hw, wcn->dev);
1048 wcn->hw->sta_data_size = sizeof(struct wcn36xx_sta);
1049 wcn->hw->vif_data_size = sizeof(struct wcn36xx_vif);
1054 static int wcn36xx_platform_get_resources(struct wcn36xx *wcn,
1055 struct platform_device *pdev)
1057 struct device_node *mmio_node;
1058 struct resource *res;
1063 res = platform_get_resource_byname(pdev, IORESOURCE_IRQ,
1064 "wcnss_wlantx_irq");
1066 wcn36xx_err("failed to get tx_irq\n");
1069 wcn->tx_irq = res->start;
1072 res = platform_get_resource_byname(pdev, IORESOURCE_IRQ,
1073 "wcnss_wlanrx_irq");
1075 wcn36xx_err("failed to get rx_irq\n");
1078 wcn->rx_irq = res->start;
1080 mmio_node = of_parse_phandle(pdev->dev.parent->of_node, "qcom,mmio", 0);
1082 wcn36xx_err("failed to acquire qcom,mmio reference\n");
1086 wcn->is_pronto = !!of_device_is_compatible(mmio_node, "qcom,pronto");
1088 /* Map the CCU memory */
1089 index = of_property_match_string(mmio_node, "reg-names", "ccu");
1090 wcn->ccu_base = of_iomap(mmio_node, index);
1091 if (!wcn->ccu_base) {
1092 wcn36xx_err("failed to map ccu memory\n");
1097 /* Map the DXE memory */
1098 index = of_property_match_string(mmio_node, "reg-names", "dxe");
1099 wcn->dxe_base = of_iomap(mmio_node, index);
1100 if (!wcn->dxe_base) {
1101 wcn36xx_err("failed to map dxe memory\n");
1106 of_node_put(mmio_node);
1110 iounmap(wcn->ccu_base);
1112 of_node_put(mmio_node);
1116 static int wcn36xx_probe(struct platform_device *pdev)
1118 struct ieee80211_hw *hw;
1119 struct wcn36xx *wcn;
1123 wcn36xx_dbg(WCN36XX_DBG_MAC, "platform probe\n");
1125 hw = ieee80211_alloc_hw(sizeof(struct wcn36xx), &wcn36xx_ops);
1127 wcn36xx_err("failed to alloc hw\n");
1131 platform_set_drvdata(pdev, hw);
1134 wcn->dev = &pdev->dev;
1135 wcn->ctrl_ops = pdev->dev.platform_data;
1137 mutex_init(&wcn->hal_mutex);
1139 if (!wcn->ctrl_ops->get_hw_mac(addr)) {
1140 wcn36xx_info("mac address: %pM\n", addr);
1141 SET_IEEE80211_PERM_ADDR(wcn->hw, addr);
1144 ret = wcn36xx_platform_get_resources(wcn, pdev);
1148 wcn36xx_init_ieee80211(wcn);
1149 ret = ieee80211_register_hw(wcn->hw);
1156 iounmap(wcn->ccu_base);
1157 iounmap(wcn->dxe_base);
1159 ieee80211_free_hw(hw);
1163 static int wcn36xx_remove(struct platform_device *pdev)
1165 struct ieee80211_hw *hw = platform_get_drvdata(pdev);
1166 struct wcn36xx *wcn = hw->priv;
1167 wcn36xx_dbg(WCN36XX_DBG_MAC, "platform remove\n");
1169 release_firmware(wcn->nv);
1171 ieee80211_unregister_hw(hw);
1172 iounmap(wcn->dxe_base);
1173 iounmap(wcn->ccu_base);
1175 mutex_destroy(&wcn->hal_mutex);
1176 ieee80211_free_hw(hw);
1180 static const struct platform_device_id wcn36xx_platform_id_table[] = {
1187 MODULE_DEVICE_TABLE(platform, wcn36xx_platform_id_table);
1189 static struct platform_driver wcn36xx_driver = {
1190 .probe = wcn36xx_probe,
1191 .remove = wcn36xx_remove,
1195 .id_table = wcn36xx_platform_id_table,
1198 static int __init wcn36xx_init(void)
1200 platform_driver_register(&wcn36xx_driver);
1203 module_init(wcn36xx_init);
1205 static void __exit wcn36xx_exit(void)
1207 platform_driver_unregister(&wcn36xx_driver);
1209 module_exit(wcn36xx_exit);
1211 MODULE_LICENSE("Dual BSD/GPL");
1212 MODULE_AUTHOR("Eugene Krasnikov k.eugene.e@gmail.com");