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>
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>
30 unsigned int wcn36xx_dbg_mask
;
31 module_param_named(debug_mask
, wcn36xx_dbg_mask
, uint
, 0644);
32 MODULE_PARM_DESC(debug_mask
, "Debugging mask");
34 #define CHAN2G(_freq, _idx) { \
35 .band = NL80211_BAND_2GHZ, \
36 .center_freq = (_freq), \
41 #define CHAN5G(_freq, _idx) { \
42 .band = NL80211_BAND_5GHZ, \
43 .center_freq = (_freq), \
48 /* The wcn firmware expects channel values to matching
49 * their mnemonic values. So use these for .hw_value. */
50 static struct ieee80211_channel wcn_2ghz_channels
[] = {
51 CHAN2G(2412, 1), /* Channel 1 */
52 CHAN2G(2417, 2), /* Channel 2 */
53 CHAN2G(2422, 3), /* Channel 3 */
54 CHAN2G(2427, 4), /* Channel 4 */
55 CHAN2G(2432, 5), /* Channel 5 */
56 CHAN2G(2437, 6), /* Channel 6 */
57 CHAN2G(2442, 7), /* Channel 7 */
58 CHAN2G(2447, 8), /* Channel 8 */
59 CHAN2G(2452, 9), /* Channel 9 */
60 CHAN2G(2457, 10), /* Channel 10 */
61 CHAN2G(2462, 11), /* Channel 11 */
62 CHAN2G(2467, 12), /* Channel 12 */
63 CHAN2G(2472, 13), /* Channel 13 */
64 CHAN2G(2484, 14) /* Channel 14 */
68 static struct ieee80211_channel wcn_5ghz_channels
[] = {
94 #define RATE(_bitrate, _hw_rate, _flags) { \
95 .bitrate = (_bitrate), \
97 .hw_value = (_hw_rate), \
98 .hw_value_short = (_hw_rate) \
101 static struct ieee80211_rate wcn_2ghz_rates
[] = {
102 RATE(10, HW_RATE_INDEX_1MBPS
, 0),
103 RATE(20, HW_RATE_INDEX_2MBPS
, IEEE80211_RATE_SHORT_PREAMBLE
),
104 RATE(55, HW_RATE_INDEX_5_5MBPS
, IEEE80211_RATE_SHORT_PREAMBLE
),
105 RATE(110, HW_RATE_INDEX_11MBPS
, IEEE80211_RATE_SHORT_PREAMBLE
),
106 RATE(60, HW_RATE_INDEX_6MBPS
, 0),
107 RATE(90, HW_RATE_INDEX_9MBPS
, 0),
108 RATE(120, HW_RATE_INDEX_12MBPS
, 0),
109 RATE(180, HW_RATE_INDEX_18MBPS
, 0),
110 RATE(240, HW_RATE_INDEX_24MBPS
, 0),
111 RATE(360, HW_RATE_INDEX_36MBPS
, 0),
112 RATE(480, HW_RATE_INDEX_48MBPS
, 0),
113 RATE(540, HW_RATE_INDEX_54MBPS
, 0)
116 static struct ieee80211_rate wcn_5ghz_rates
[] = {
117 RATE(60, HW_RATE_INDEX_6MBPS
, 0),
118 RATE(90, HW_RATE_INDEX_9MBPS
, 0),
119 RATE(120, HW_RATE_INDEX_12MBPS
, 0),
120 RATE(180, HW_RATE_INDEX_18MBPS
, 0),
121 RATE(240, HW_RATE_INDEX_24MBPS
, 0),
122 RATE(360, HW_RATE_INDEX_36MBPS
, 0),
123 RATE(480, HW_RATE_INDEX_48MBPS
, 0),
124 RATE(540, HW_RATE_INDEX_54MBPS
, 0)
127 static struct ieee80211_supported_band wcn_band_2ghz
= {
128 .channels
= wcn_2ghz_channels
,
129 .n_channels
= ARRAY_SIZE(wcn_2ghz_channels
),
130 .bitrates
= wcn_2ghz_rates
,
131 .n_bitrates
= ARRAY_SIZE(wcn_2ghz_rates
),
133 .cap
= IEEE80211_HT_CAP_GRN_FLD
|
134 IEEE80211_HT_CAP_SGI_20
|
135 IEEE80211_HT_CAP_DSSSCCK40
|
136 IEEE80211_HT_CAP_LSIG_TXOP_PROT
,
137 .ht_supported
= true,
138 .ampdu_factor
= IEEE80211_HT_MAX_AMPDU_64K
,
139 .ampdu_density
= IEEE80211_HT_MPDU_DENSITY_16
,
141 .rx_mask
= { 0xff, 0, 0, 0, 0, 0, 0, 0, 0, 0, },
142 .rx_highest
= cpu_to_le16(72),
143 .tx_params
= IEEE80211_HT_MCS_TX_DEFINED
,
148 static struct ieee80211_supported_band wcn_band_5ghz
= {
149 .channels
= wcn_5ghz_channels
,
150 .n_channels
= ARRAY_SIZE(wcn_5ghz_channels
),
151 .bitrates
= wcn_5ghz_rates
,
152 .n_bitrates
= ARRAY_SIZE(wcn_5ghz_rates
),
154 .cap
= IEEE80211_HT_CAP_GRN_FLD
|
155 IEEE80211_HT_CAP_SGI_20
|
156 IEEE80211_HT_CAP_DSSSCCK40
|
157 IEEE80211_HT_CAP_LSIG_TXOP_PROT
|
158 IEEE80211_HT_CAP_SGI_40
|
159 IEEE80211_HT_CAP_SUP_WIDTH_20_40
,
160 .ht_supported
= true,
161 .ampdu_factor
= IEEE80211_HT_MAX_AMPDU_64K
,
162 .ampdu_density
= IEEE80211_HT_MPDU_DENSITY_16
,
164 .rx_mask
= { 0xff, 0, 0, 0, 0, 0, 0, 0, 0, 0, },
165 .rx_highest
= cpu_to_le16(72),
166 .tx_params
= IEEE80211_HT_MCS_TX_DEFINED
,
173 static const struct wiphy_wowlan_support wowlan_support
= {
174 .flags
= WIPHY_WOWLAN_ANY
179 static inline u8
get_sta_index(struct ieee80211_vif
*vif
,
180 struct wcn36xx_sta
*sta_priv
)
182 return NL80211_IFTYPE_STATION
== vif
->type
?
183 sta_priv
->bss_sta_index
:
187 static const char * const wcn36xx_caps_names
[] = {
191 "SLM_SESSIONIZATION", /* 3 */
192 "DOT11AC_OPMODE", /* 4 */
195 "P2P_GO_NOA_DECOUPLE_INIT_SCAN",/* 7 */
196 "WLANACTIVE_OFFLOAD", /* 8 */
197 "BEACON_OFFLOAD", /* 9 */
198 "SCAN_OFFLOAD", /* 10 */
199 "ROAM_OFFLOAD", /* 11 */
200 "BCN_MISS_OFFLOAD", /* 12 */
201 "STA_POWERSAVE", /* 13 */
202 "STA_ADVANCED_PWRSAVE", /* 14 */
207 "BCN_FILTER", /* 19 */
211 "WLAN_ROAM_SCAN_OFFLOAD", /* 23 */
212 "SPECULATIVE_PS_POLL", /* 24 */
214 "IBSS_HEARTBEAT_OFFLOAD", /* 26 */
215 "WLAN_SCAN_OFFLOAD", /* 27 */
216 "WLAN_PERIODIC_TX_PTRN", /* 28 */
217 "ADVANCE_TDLS", /* 29 */
218 "BATCH_SCAN", /* 30 */
219 "FW_IN_TX_PATH", /* 31 */
220 "EXTENDED_NSOFFLOAD_SLOT", /* 32 */
221 "CH_SWITCH_V1", /* 33 */
222 "HT40_OBSS_SCAN", /* 34 */
223 "UPDATE_CHANNEL_LIST", /* 35 */
224 "WLAN_MCADDR_FLT", /* 36 */
225 "WLAN_CH144", /* 37 */
227 "TDLS_SCAN_COEXISTENCE", /* 39 */
228 "LINK_LAYER_STATS_MEAS", /* 40 */
230 "EXTENDED_SCAN", /* 42 */
231 "DYNAMIC_WMM_PS", /* 43 */
232 "MAC_SPOOFED_SCAN", /* 44 */
233 "BMU_ERROR_GENERIC_RECOVERY", /* 45 */
236 "WPS_PRBRSP_TMPL", /* 48 */
237 "BCN_IE_FLT_DELTA", /* 49 */
238 "TDLS_OFF_CHANNEL", /* 51 */
240 "MGMT_FRAME_LOGGING", /* 53 */
241 "ENHANCED_TXBD_COMPLETION", /* 54 */
242 "LOGGING_ENHANCEMENT", /* 55 */
243 "EXT_SCAN_ENHANCED", /* 56 */
244 "MEMORY_DUMP_SUPPORTED", /* 57 */
245 "PER_PKT_STATS_SUPPORTED", /* 58 */
246 "EXT_LL_STAT", /* 60 */
247 "WIFI_CONFIG", /* 61 */
248 "ANTENNA_DIVERSITY_SELECTION", /* 62 */
251 static const char *wcn36xx_get_cap_name(enum place_holder_in_cap_bitmap x
)
253 if (x
>= ARRAY_SIZE(wcn36xx_caps_names
))
255 return wcn36xx_caps_names
[x
];
258 static void wcn36xx_feat_caps_info(struct wcn36xx
*wcn
)
262 for (i
= 0; i
< MAX_FEATURE_SUPPORTED
; i
++) {
263 if (get_feat_caps(wcn
->fw_feat_caps
, i
))
264 wcn36xx_info("FW Cap %s\n", wcn36xx_get_cap_name(i
));
268 static int wcn36xx_start(struct ieee80211_hw
*hw
)
270 struct wcn36xx
*wcn
= hw
->priv
;
273 wcn36xx_dbg(WCN36XX_DBG_MAC
, "mac start\n");
275 /* SMD initialization */
276 ret
= wcn36xx_smd_open(wcn
);
278 wcn36xx_err("Failed to open smd channel: %d\n", ret
);
282 /* Allocate memory pools for Mgmt BD headers and Data BD headers */
283 ret
= wcn36xx_dxe_allocate_mem_pools(wcn
);
285 wcn36xx_err("Failed to alloc DXE mempool: %d\n", ret
);
289 ret
= wcn36xx_dxe_alloc_ctl_blks(wcn
);
291 wcn36xx_err("Failed to alloc DXE ctl blocks: %d\n", ret
);
292 goto out_free_dxe_pool
;
295 wcn
->hal_buf
= kmalloc(WCN36XX_HAL_BUF_SIZE
, GFP_KERNEL
);
297 wcn36xx_err("Failed to allocate smd buf\n");
299 goto out_free_dxe_ctl
;
302 ret
= wcn36xx_smd_load_nv(wcn
);
304 wcn36xx_err("Failed to push NV to chip\n");
305 goto out_free_smd_buf
;
308 ret
= wcn36xx_smd_start(wcn
);
310 wcn36xx_err("Failed to start chip\n");
311 goto out_free_smd_buf
;
314 if (!wcn36xx_is_fw_version(wcn
, 1, 2, 2, 24)) {
315 ret
= wcn36xx_smd_feature_caps_exchange(wcn
);
317 wcn36xx_warn("Exchange feature caps failed\n");
319 wcn36xx_feat_caps_info(wcn
);
322 /* DMA channel initialization */
323 ret
= wcn36xx_dxe_init(wcn
);
325 wcn36xx_err("DXE init failed\n");
329 wcn36xx_debugfs_init(wcn
);
331 INIT_LIST_HEAD(&wcn
->vif_list
);
332 spin_lock_init(&wcn
->dxe_lock
);
337 wcn36xx_smd_stop(wcn
);
341 wcn36xx_dxe_free_ctl_blks(wcn
);
343 wcn36xx_dxe_free_mem_pools(wcn
);
345 wcn36xx_smd_close(wcn
);
350 static void wcn36xx_stop(struct ieee80211_hw
*hw
)
352 struct wcn36xx
*wcn
= hw
->priv
;
354 wcn36xx_dbg(WCN36XX_DBG_MAC
, "mac stop\n");
356 wcn36xx_debugfs_exit(wcn
);
357 wcn36xx_smd_stop(wcn
);
358 wcn36xx_dxe_deinit(wcn
);
359 wcn36xx_smd_close(wcn
);
361 wcn36xx_dxe_free_mem_pools(wcn
);
362 wcn36xx_dxe_free_ctl_blks(wcn
);
367 static int wcn36xx_config(struct ieee80211_hw
*hw
, u32 changed
)
369 struct wcn36xx
*wcn
= hw
->priv
;
370 struct ieee80211_vif
*vif
= NULL
;
371 struct wcn36xx_vif
*tmp
;
373 wcn36xx_dbg(WCN36XX_DBG_MAC
, "mac config changed 0x%08x\n", changed
);
375 mutex_lock(&wcn
->conf_mutex
);
377 if (changed
& IEEE80211_CONF_CHANGE_CHANNEL
) {
378 int ch
= WCN36XX_HW_CHANNEL(wcn
);
379 wcn36xx_dbg(WCN36XX_DBG_MAC
, "wcn36xx_config channel switch=%d\n",
381 list_for_each_entry(tmp
, &wcn
->vif_list
, list
) {
382 vif
= wcn36xx_priv_to_vif(tmp
);
383 wcn36xx_smd_switch_channel(wcn
, vif
, ch
);
387 mutex_unlock(&wcn
->conf_mutex
);
392 static void wcn36xx_configure_filter(struct ieee80211_hw
*hw
,
393 unsigned int changed
,
394 unsigned int *total
, u64 multicast
)
396 struct wcn36xx_hal_rcv_flt_mc_addr_list_type
*fp
;
397 struct wcn36xx
*wcn
= hw
->priv
;
398 struct wcn36xx_vif
*tmp
;
399 struct ieee80211_vif
*vif
= NULL
;
401 wcn36xx_dbg(WCN36XX_DBG_MAC
, "mac configure filter\n");
403 mutex_lock(&wcn
->conf_mutex
);
405 *total
&= FIF_ALLMULTI
;
407 fp
= (void *)(unsigned long)multicast
;
408 list_for_each_entry(tmp
, &wcn
->vif_list
, list
) {
409 vif
= wcn36xx_priv_to_vif(tmp
);
411 /* FW handles MC filtering only when connected as STA */
412 if (*total
& FIF_ALLMULTI
)
413 wcn36xx_smd_set_mc_list(wcn
, vif
, NULL
);
414 else if (NL80211_IFTYPE_STATION
== vif
->type
&& tmp
->sta_assoc
)
415 wcn36xx_smd_set_mc_list(wcn
, vif
, fp
);
418 mutex_unlock(&wcn
->conf_mutex
);
422 static u64
wcn36xx_prepare_multicast(struct ieee80211_hw
*hw
,
423 struct netdev_hw_addr_list
*mc_list
)
425 struct wcn36xx_hal_rcv_flt_mc_addr_list_type
*fp
;
426 struct netdev_hw_addr
*ha
;
428 wcn36xx_dbg(WCN36XX_DBG_MAC
, "mac prepare multicast list\n");
429 fp
= kzalloc(sizeof(*fp
), GFP_ATOMIC
);
431 wcn36xx_err("Out of memory setting filters.\n");
435 fp
->mc_addr_count
= 0;
436 /* update multicast filtering parameters */
437 if (netdev_hw_addr_list_count(mc_list
) <=
438 WCN36XX_HAL_MAX_NUM_MULTICAST_ADDRESS
) {
439 netdev_hw_addr_list_for_each(ha
, mc_list
) {
440 memcpy(fp
->mc_addr
[fp
->mc_addr_count
],
446 return (u64
)(unsigned long)fp
;
449 static void wcn36xx_tx(struct ieee80211_hw
*hw
,
450 struct ieee80211_tx_control
*control
,
453 struct wcn36xx
*wcn
= hw
->priv
;
454 struct wcn36xx_sta
*sta_priv
= NULL
;
457 sta_priv
= wcn36xx_sta_to_priv(control
->sta
);
459 if (wcn36xx_start_tx(wcn
, sta_priv
, skb
))
460 ieee80211_free_txskb(wcn
->hw
, skb
);
463 static int wcn36xx_set_key(struct ieee80211_hw
*hw
, enum set_key_cmd cmd
,
464 struct ieee80211_vif
*vif
,
465 struct ieee80211_sta
*sta
,
466 struct ieee80211_key_conf
*key_conf
)
468 struct wcn36xx
*wcn
= hw
->priv
;
469 struct wcn36xx_vif
*vif_priv
= wcn36xx_vif_to_priv(vif
);
470 struct wcn36xx_sta
*sta_priv
= wcn36xx_sta_to_priv(sta
);
472 u8 key
[WLAN_MAX_KEY_LEN
];
474 wcn36xx_dbg(WCN36XX_DBG_MAC
, "mac80211 set key\n");
475 wcn36xx_dbg(WCN36XX_DBG_MAC
, "Key: cmd=0x%x algo:0x%x, id:%d, len:%d flags 0x%x\n",
476 cmd
, key_conf
->cipher
, key_conf
->keyidx
,
477 key_conf
->keylen
, key_conf
->flags
);
478 wcn36xx_dbg_dump(WCN36XX_DBG_MAC
, "KEY: ",
482 mutex_lock(&wcn
->conf_mutex
);
484 switch (key_conf
->cipher
) {
485 case WLAN_CIPHER_SUITE_WEP40
:
486 vif_priv
->encrypt_type
= WCN36XX_HAL_ED_WEP40
;
488 case WLAN_CIPHER_SUITE_WEP104
:
489 vif_priv
->encrypt_type
= WCN36XX_HAL_ED_WEP40
;
491 case WLAN_CIPHER_SUITE_CCMP
:
492 vif_priv
->encrypt_type
= WCN36XX_HAL_ED_CCMP
;
494 case WLAN_CIPHER_SUITE_TKIP
:
495 vif_priv
->encrypt_type
= WCN36XX_HAL_ED_TKIP
;
498 wcn36xx_err("Unsupported key type 0x%x\n",
506 if (WCN36XX_HAL_ED_TKIP
== vif_priv
->encrypt_type
) {
508 * Supplicant is sending key in the wrong order:
509 * Temporal Key (16 b) - TX MIC (8 b) - RX MIC (8 b)
510 * but HW expects it to be in the order as described in
511 * IEEE 802.11 spec (see chapter 11.7) like this:
512 * Temporal Key (16 b) - RX MIC (8 b) - TX MIC (8 b)
514 memcpy(key
, key_conf
->key
, 16);
515 memcpy(key
+ 16, key_conf
->key
+ 24, 8);
516 memcpy(key
+ 24, key_conf
->key
+ 16, 8);
518 memcpy(key
, key_conf
->key
, key_conf
->keylen
);
521 if (IEEE80211_KEY_FLAG_PAIRWISE
& key_conf
->flags
) {
522 sta_priv
->is_data_encrypted
= true;
523 /* Reconfigure bss with encrypt_type */
524 if (NL80211_IFTYPE_STATION
== vif
->type
)
525 wcn36xx_smd_config_bss(wcn
,
531 wcn36xx_smd_set_stakey(wcn
,
532 vif_priv
->encrypt_type
,
536 get_sta_index(vif
, sta_priv
));
538 wcn36xx_smd_set_bsskey(wcn
,
539 vif_priv
->encrypt_type
,
543 if ((WLAN_CIPHER_SUITE_WEP40
== key_conf
->cipher
) ||
544 (WLAN_CIPHER_SUITE_WEP104
== key_conf
->cipher
)) {
545 sta_priv
->is_data_encrypted
= true;
546 wcn36xx_smd_set_stakey(wcn
,
547 vif_priv
->encrypt_type
,
551 get_sta_index(vif
, sta_priv
));
556 if (!(IEEE80211_KEY_FLAG_PAIRWISE
& key_conf
->flags
)) {
557 vif_priv
->encrypt_type
= WCN36XX_HAL_ED_NONE
;
558 wcn36xx_smd_remove_bsskey(wcn
,
559 vif_priv
->encrypt_type
,
562 sta_priv
->is_data_encrypted
= false;
563 /* do not remove key if disassociated */
565 wcn36xx_smd_remove_stakey(wcn
,
566 vif_priv
->encrypt_type
,
568 get_sta_index(vif
, sta_priv
));
572 wcn36xx_err("Unsupported key cmd 0x%x\n", cmd
);
578 mutex_unlock(&wcn
->conf_mutex
);
583 static void wcn36xx_hw_scan_worker(struct work_struct
*work
)
585 struct wcn36xx
*wcn
= container_of(work
, struct wcn36xx
, scan_work
);
586 struct cfg80211_scan_request
*req
= wcn
->scan_req
;
587 u8 channels
[WCN36XX_HAL_PNO_MAX_NETW_CHANNELS_EX
];
588 struct cfg80211_scan_info scan_info
= {};
589 bool aborted
= false;
592 wcn36xx_dbg(WCN36XX_DBG_MAC
, "mac80211 scan %d channels worker\n", req
->n_channels
);
594 for (i
= 0; i
< req
->n_channels
; i
++)
595 channels
[i
] = req
->channels
[i
]->hw_value
;
597 wcn36xx_smd_update_scan_params(wcn
, channels
, req
->n_channels
);
599 wcn36xx_smd_init_scan(wcn
, HAL_SYS_MODE_SCAN
);
600 for (i
= 0; i
< req
->n_channels
; i
++) {
601 mutex_lock(&wcn
->scan_lock
);
602 aborted
= wcn
->scan_aborted
;
603 mutex_unlock(&wcn
->scan_lock
);
608 wcn
->scan_freq
= req
->channels
[i
]->center_freq
;
609 wcn
->scan_band
= req
->channels
[i
]->band
;
611 wcn36xx_smd_start_scan(wcn
, req
->channels
[i
]->hw_value
);
613 wcn36xx_smd_end_scan(wcn
, req
->channels
[i
]->hw_value
);
617 wcn36xx_smd_finish_scan(wcn
, HAL_SYS_MODE_SCAN
);
619 scan_info
.aborted
= aborted
;
620 ieee80211_scan_completed(wcn
->hw
, &scan_info
);
622 mutex_lock(&wcn
->scan_lock
);
623 wcn
->scan_req
= NULL
;
624 mutex_unlock(&wcn
->scan_lock
);
627 static int wcn36xx_hw_scan(struct ieee80211_hw
*hw
,
628 struct ieee80211_vif
*vif
,
629 struct ieee80211_scan_request
*hw_req
)
631 struct wcn36xx
*wcn
= hw
->priv
;
633 mutex_lock(&wcn
->scan_lock
);
635 mutex_unlock(&wcn
->scan_lock
);
639 wcn
->scan_aborted
= false;
640 wcn
->scan_req
= &hw_req
->req
;
641 mutex_unlock(&wcn
->scan_lock
);
643 schedule_work(&wcn
->scan_work
);
648 static void wcn36xx_cancel_hw_scan(struct ieee80211_hw
*hw
,
649 struct ieee80211_vif
*vif
)
651 struct wcn36xx
*wcn
= hw
->priv
;
653 mutex_lock(&wcn
->scan_lock
);
654 wcn
->scan_aborted
= true;
655 mutex_unlock(&wcn
->scan_lock
);
657 cancel_work_sync(&wcn
->scan_work
);
660 static void wcn36xx_update_allowed_rates(struct ieee80211_sta
*sta
,
661 enum nl80211_band band
)
665 struct wcn36xx_sta
*sta_priv
= wcn36xx_sta_to_priv(sta
);
666 u32 rates
= sta
->supp_rates
[band
];
668 memset(&sta_priv
->supported_rates
, 0,
669 sizeof(sta_priv
->supported_rates
));
670 sta_priv
->supported_rates
.op_rate_mode
= STA_11n
;
672 size
= ARRAY_SIZE(sta_priv
->supported_rates
.dsss_rates
);
673 rates_table
= sta_priv
->supported_rates
.dsss_rates
;
674 if (band
== NL80211_BAND_2GHZ
) {
675 for (i
= 0; i
< size
; i
++) {
677 rates_table
[i
] = wcn_2ghz_rates
[i
].hw_value
;
683 size
= ARRAY_SIZE(sta_priv
->supported_rates
.ofdm_rates
);
684 rates_table
= sta_priv
->supported_rates
.ofdm_rates
;
685 for (i
= 0; i
< size
; i
++) {
687 rates_table
[i
] = wcn_5ghz_rates
[i
].hw_value
;
692 if (sta
->ht_cap
.ht_supported
) {
693 BUILD_BUG_ON(sizeof(sta
->ht_cap
.mcs
.rx_mask
) >
694 sizeof(sta_priv
->supported_rates
.supported_mcs_set
));
695 memcpy(sta_priv
->supported_rates
.supported_mcs_set
,
696 sta
->ht_cap
.mcs
.rx_mask
,
697 sizeof(sta
->ht_cap
.mcs
.rx_mask
));
700 void wcn36xx_set_default_rates(struct wcn36xx_hal_supported_rates
*rates
)
702 u16 ofdm_rates
[WCN36XX_HAL_NUM_OFDM_RATES
] = {
705 HW_RATE_INDEX_12MBPS
,
706 HW_RATE_INDEX_18MBPS
,
707 HW_RATE_INDEX_24MBPS
,
708 HW_RATE_INDEX_36MBPS
,
709 HW_RATE_INDEX_48MBPS
,
712 u16 dsss_rates
[WCN36XX_HAL_NUM_DSSS_RATES
] = {
715 HW_RATE_INDEX_5_5MBPS
,
719 rates
->op_rate_mode
= STA_11n
;
720 memcpy(rates
->dsss_rates
, dsss_rates
,
721 sizeof(*dsss_rates
) * WCN36XX_HAL_NUM_DSSS_RATES
);
722 memcpy(rates
->ofdm_rates
, ofdm_rates
,
723 sizeof(*ofdm_rates
) * WCN36XX_HAL_NUM_OFDM_RATES
);
724 rates
->supported_mcs_set
[0] = 0xFF;
726 static void wcn36xx_bss_info_changed(struct ieee80211_hw
*hw
,
727 struct ieee80211_vif
*vif
,
728 struct ieee80211_bss_conf
*bss_conf
,
731 struct wcn36xx
*wcn
= hw
->priv
;
732 struct sk_buff
*skb
= NULL
;
733 u16 tim_off
, tim_len
;
734 enum wcn36xx_hal_link_state link_state
;
735 struct wcn36xx_vif
*vif_priv
= wcn36xx_vif_to_priv(vif
);
737 wcn36xx_dbg(WCN36XX_DBG_MAC
, "mac bss info changed vif %p changed 0x%08x\n",
740 mutex_lock(&wcn
->conf_mutex
);
742 if (changed
& BSS_CHANGED_BEACON_INFO
) {
743 wcn36xx_dbg(WCN36XX_DBG_MAC
,
744 "mac bss changed dtim period %d\n",
745 bss_conf
->dtim_period
);
747 vif_priv
->dtim_period
= bss_conf
->dtim_period
;
750 if (changed
& BSS_CHANGED_PS
) {
751 wcn36xx_dbg(WCN36XX_DBG_MAC
,
752 "mac bss PS set %d\n",
755 wcn36xx_pmc_enter_bmps_state(wcn
, vif
);
757 wcn36xx_pmc_exit_bmps_state(wcn
, vif
);
761 if (changed
& BSS_CHANGED_BSSID
) {
762 wcn36xx_dbg(WCN36XX_DBG_MAC
, "mac bss changed_bssid %pM\n",
765 if (!is_zero_ether_addr(bss_conf
->bssid
)) {
766 vif_priv
->is_joining
= true;
767 vif_priv
->bss_index
= WCN36XX_HAL_BSS_INVALID_IDX
;
768 wcn36xx_smd_join(wcn
, bss_conf
->bssid
,
769 vif
->addr
, WCN36XX_HW_CHANNEL(wcn
));
770 wcn36xx_smd_config_bss(wcn
, vif
, NULL
,
771 bss_conf
->bssid
, false);
773 vif_priv
->is_joining
= false;
774 wcn36xx_smd_delete_bss(wcn
, vif
);
775 vif_priv
->encrypt_type
= WCN36XX_HAL_ED_NONE
;
779 if (changed
& BSS_CHANGED_SSID
) {
780 wcn36xx_dbg(WCN36XX_DBG_MAC
,
781 "mac bss changed ssid\n");
782 wcn36xx_dbg_dump(WCN36XX_DBG_MAC
, "ssid ",
783 bss_conf
->ssid
, bss_conf
->ssid_len
);
785 vif_priv
->ssid
.length
= bss_conf
->ssid_len
;
786 memcpy(&vif_priv
->ssid
.ssid
,
791 if (changed
& BSS_CHANGED_ASSOC
) {
792 vif_priv
->is_joining
= false;
793 if (bss_conf
->assoc
) {
794 struct ieee80211_sta
*sta
;
795 struct wcn36xx_sta
*sta_priv
;
797 wcn36xx_dbg(WCN36XX_DBG_MAC
,
798 "mac assoc bss %pM vif %pM AID=%d\n",
803 vif_priv
->sta_assoc
= true;
806 * Holding conf_mutex ensures mutal exclusion with
807 * wcn36xx_sta_remove() and as such ensures that sta
808 * won't be freed while we're operating on it. As such
809 * we do not need to hold the rcu_read_lock().
811 sta
= ieee80211_find_sta(vif
, bss_conf
->bssid
);
813 wcn36xx_err("sta %pM is not found\n",
817 sta_priv
= wcn36xx_sta_to_priv(sta
);
819 wcn36xx_update_allowed_rates(sta
, WCN36XX_BAND(wcn
));
821 wcn36xx_smd_set_link_st(wcn
, bss_conf
->bssid
,
823 WCN36XX_HAL_LINK_POSTASSOC_STATE
);
824 wcn36xx_smd_config_bss(wcn
, vif
, sta
,
827 sta_priv
->aid
= bss_conf
->aid
;
829 * config_sta must be called from because this is the
830 * place where AID is available.
832 wcn36xx_smd_config_sta(wcn
, vif
, sta
);
834 wcn36xx_dbg(WCN36XX_DBG_MAC
,
835 "disassociated bss %pM vif %pM AID=%d\n",
839 vif_priv
->sta_assoc
= false;
840 wcn36xx_smd_set_link_st(wcn
,
843 WCN36XX_HAL_LINK_IDLE_STATE
);
847 if (changed
& BSS_CHANGED_AP_PROBE_RESP
) {
848 wcn36xx_dbg(WCN36XX_DBG_MAC
, "mac bss changed ap probe resp\n");
849 skb
= ieee80211_proberesp_get(hw
, vif
);
851 wcn36xx_err("failed to alloc probereq skb\n");
855 wcn36xx_smd_update_proberesp_tmpl(wcn
, vif
, skb
);
859 if (changed
& BSS_CHANGED_BEACON_ENABLED
||
860 changed
& BSS_CHANGED_BEACON
) {
861 wcn36xx_dbg(WCN36XX_DBG_MAC
,
862 "mac bss changed beacon enabled %d\n",
863 bss_conf
->enable_beacon
);
865 if (bss_conf
->enable_beacon
) {
866 vif_priv
->dtim_period
= bss_conf
->dtim_period
;
867 vif_priv
->bss_index
= WCN36XX_HAL_BSS_INVALID_IDX
;
868 wcn36xx_smd_config_bss(wcn
, vif
, NULL
,
870 skb
= ieee80211_beacon_get_tim(hw
, vif
, &tim_off
,
873 wcn36xx_err("failed to alloc beacon skb\n");
876 wcn36xx_smd_send_beacon(wcn
, vif
, skb
, tim_off
, 0);
879 if (vif
->type
== NL80211_IFTYPE_ADHOC
||
880 vif
->type
== NL80211_IFTYPE_MESH_POINT
)
881 link_state
= WCN36XX_HAL_LINK_IBSS_STATE
;
883 link_state
= WCN36XX_HAL_LINK_AP_STATE
;
885 wcn36xx_smd_set_link_st(wcn
, vif
->addr
, vif
->addr
,
888 wcn36xx_smd_delete_bss(wcn
, vif
);
889 wcn36xx_smd_set_link_st(wcn
, vif
->addr
, vif
->addr
,
890 WCN36XX_HAL_LINK_IDLE_STATE
);
895 mutex_unlock(&wcn
->conf_mutex
);
900 /* this is required when using IEEE80211_HW_HAS_RATE_CONTROL */
901 static int wcn36xx_set_rts_threshold(struct ieee80211_hw
*hw
, u32 value
)
903 struct wcn36xx
*wcn
= hw
->priv
;
904 wcn36xx_dbg(WCN36XX_DBG_MAC
, "mac set RTS threshold %d\n", value
);
906 mutex_lock(&wcn
->conf_mutex
);
907 wcn36xx_smd_update_cfg(wcn
, WCN36XX_HAL_CFG_RTS_THRESHOLD
, value
);
908 mutex_unlock(&wcn
->conf_mutex
);
913 static void wcn36xx_remove_interface(struct ieee80211_hw
*hw
,
914 struct ieee80211_vif
*vif
)
916 struct wcn36xx
*wcn
= hw
->priv
;
917 struct wcn36xx_vif
*vif_priv
= wcn36xx_vif_to_priv(vif
);
918 wcn36xx_dbg(WCN36XX_DBG_MAC
, "mac remove interface vif %p\n", vif
);
920 mutex_lock(&wcn
->conf_mutex
);
922 list_del(&vif_priv
->list
);
923 wcn36xx_smd_delete_sta_self(wcn
, vif
->addr
);
925 mutex_unlock(&wcn
->conf_mutex
);
928 static int wcn36xx_add_interface(struct ieee80211_hw
*hw
,
929 struct ieee80211_vif
*vif
)
931 struct wcn36xx
*wcn
= hw
->priv
;
932 struct wcn36xx_vif
*vif_priv
= wcn36xx_vif_to_priv(vif
);
934 wcn36xx_dbg(WCN36XX_DBG_MAC
, "mac add interface vif %p type %d\n",
937 if (!(NL80211_IFTYPE_STATION
== vif
->type
||
938 NL80211_IFTYPE_AP
== vif
->type
||
939 NL80211_IFTYPE_ADHOC
== vif
->type
||
940 NL80211_IFTYPE_MESH_POINT
== vif
->type
)) {
941 wcn36xx_warn("Unsupported interface type requested: %d\n",
946 mutex_lock(&wcn
->conf_mutex
);
948 list_add(&vif_priv
->list
, &wcn
->vif_list
);
949 wcn36xx_smd_add_sta_self(wcn
, vif
);
951 mutex_unlock(&wcn
->conf_mutex
);
956 static int wcn36xx_sta_add(struct ieee80211_hw
*hw
, struct ieee80211_vif
*vif
,
957 struct ieee80211_sta
*sta
)
959 struct wcn36xx
*wcn
= hw
->priv
;
960 struct wcn36xx_vif
*vif_priv
= wcn36xx_vif_to_priv(vif
);
961 struct wcn36xx_sta
*sta_priv
= wcn36xx_sta_to_priv(sta
);
962 wcn36xx_dbg(WCN36XX_DBG_MAC
, "mac sta add vif %p sta %pM\n",
965 mutex_lock(&wcn
->conf_mutex
);
967 spin_lock_init(&sta_priv
->ampdu_lock
);
968 sta_priv
->vif
= vif_priv
;
970 * For STA mode HW will be configured on BSS_CHANGED_ASSOC because
971 * at this stage AID is not available yet.
973 if (NL80211_IFTYPE_STATION
!= vif
->type
) {
974 wcn36xx_update_allowed_rates(sta
, WCN36XX_BAND(wcn
));
975 sta_priv
->aid
= sta
->aid
;
976 wcn36xx_smd_config_sta(wcn
, vif
, sta
);
979 mutex_unlock(&wcn
->conf_mutex
);
984 static int wcn36xx_sta_remove(struct ieee80211_hw
*hw
,
985 struct ieee80211_vif
*vif
,
986 struct ieee80211_sta
*sta
)
988 struct wcn36xx
*wcn
= hw
->priv
;
989 struct wcn36xx_sta
*sta_priv
= wcn36xx_sta_to_priv(sta
);
991 wcn36xx_dbg(WCN36XX_DBG_MAC
, "mac sta remove vif %p sta %pM index %d\n",
992 vif
, sta
->addr
, sta_priv
->sta_index
);
994 mutex_lock(&wcn
->conf_mutex
);
996 wcn36xx_smd_delete_sta(wcn
, sta_priv
->sta_index
);
997 sta_priv
->vif
= NULL
;
999 mutex_unlock(&wcn
->conf_mutex
);
1006 static int wcn36xx_suspend(struct ieee80211_hw
*hw
, struct cfg80211_wowlan
*wow
)
1008 struct wcn36xx
*wcn
= hw
->priv
;
1010 wcn36xx_dbg(WCN36XX_DBG_MAC
, "mac suspend\n");
1012 flush_workqueue(wcn
->hal_ind_wq
);
1013 wcn36xx_smd_set_power_params(wcn
, true);
1017 static int wcn36xx_resume(struct ieee80211_hw
*hw
)
1019 struct wcn36xx
*wcn
= hw
->priv
;
1021 wcn36xx_dbg(WCN36XX_DBG_MAC
, "mac resume\n");
1023 flush_workqueue(wcn
->hal_ind_wq
);
1024 wcn36xx_smd_set_power_params(wcn
, false);
1030 static int wcn36xx_ampdu_action(struct ieee80211_hw
*hw
,
1031 struct ieee80211_vif
*vif
,
1032 struct ieee80211_ampdu_params
*params
)
1034 struct wcn36xx
*wcn
= hw
->priv
;
1035 struct wcn36xx_sta
*sta_priv
= wcn36xx_sta_to_priv(params
->sta
);
1036 struct ieee80211_sta
*sta
= params
->sta
;
1037 enum ieee80211_ampdu_mlme_action action
= params
->action
;
1038 u16 tid
= params
->tid
;
1039 u16
*ssn
= ¶ms
->ssn
;
1041 wcn36xx_dbg(WCN36XX_DBG_MAC
, "mac ampdu action action %d tid %d\n",
1044 mutex_lock(&wcn
->conf_mutex
);
1047 case IEEE80211_AMPDU_RX_START
:
1048 sta_priv
->tid
= tid
;
1049 wcn36xx_smd_add_ba_session(wcn
, sta
, tid
, ssn
, 0,
1050 get_sta_index(vif
, sta_priv
));
1051 wcn36xx_smd_add_ba(wcn
);
1052 wcn36xx_smd_trigger_ba(wcn
, get_sta_index(vif
, sta_priv
));
1054 case IEEE80211_AMPDU_RX_STOP
:
1055 wcn36xx_smd_del_ba(wcn
, tid
, get_sta_index(vif
, sta_priv
));
1057 case IEEE80211_AMPDU_TX_START
:
1058 spin_lock_bh(&sta_priv
->ampdu_lock
);
1059 sta_priv
->ampdu_state
[tid
] = WCN36XX_AMPDU_START
;
1060 spin_unlock_bh(&sta_priv
->ampdu_lock
);
1062 ieee80211_start_tx_ba_cb_irqsafe(vif
, sta
->addr
, tid
);
1064 case IEEE80211_AMPDU_TX_OPERATIONAL
:
1065 spin_lock_bh(&sta_priv
->ampdu_lock
);
1066 sta_priv
->ampdu_state
[tid
] = WCN36XX_AMPDU_OPERATIONAL
;
1067 spin_unlock_bh(&sta_priv
->ampdu_lock
);
1069 wcn36xx_smd_add_ba_session(wcn
, sta
, tid
, ssn
, 1,
1070 get_sta_index(vif
, sta_priv
));
1072 case IEEE80211_AMPDU_TX_STOP_FLUSH
:
1073 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT
:
1074 case IEEE80211_AMPDU_TX_STOP_CONT
:
1075 spin_lock_bh(&sta_priv
->ampdu_lock
);
1076 sta_priv
->ampdu_state
[tid
] = WCN36XX_AMPDU_NONE
;
1077 spin_unlock_bh(&sta_priv
->ampdu_lock
);
1079 ieee80211_stop_tx_ba_cb_irqsafe(vif
, sta
->addr
, tid
);
1082 wcn36xx_err("Unknown AMPDU action\n");
1085 mutex_unlock(&wcn
->conf_mutex
);
1090 static const struct ieee80211_ops wcn36xx_ops
= {
1091 .start
= wcn36xx_start
,
1092 .stop
= wcn36xx_stop
,
1093 .add_interface
= wcn36xx_add_interface
,
1094 .remove_interface
= wcn36xx_remove_interface
,
1096 .suspend
= wcn36xx_suspend
,
1097 .resume
= wcn36xx_resume
,
1099 .config
= wcn36xx_config
,
1100 .prepare_multicast
= wcn36xx_prepare_multicast
,
1101 .configure_filter
= wcn36xx_configure_filter
,
1103 .set_key
= wcn36xx_set_key
,
1104 .hw_scan
= wcn36xx_hw_scan
,
1105 .cancel_hw_scan
= wcn36xx_cancel_hw_scan
,
1106 .bss_info_changed
= wcn36xx_bss_info_changed
,
1107 .set_rts_threshold
= wcn36xx_set_rts_threshold
,
1108 .sta_add
= wcn36xx_sta_add
,
1109 .sta_remove
= wcn36xx_sta_remove
,
1110 .ampdu_action
= wcn36xx_ampdu_action
,
1113 static int wcn36xx_init_ieee80211(struct wcn36xx
*wcn
)
1117 static const u32 cipher_suites
[] = {
1118 WLAN_CIPHER_SUITE_WEP40
,
1119 WLAN_CIPHER_SUITE_WEP104
,
1120 WLAN_CIPHER_SUITE_TKIP
,
1121 WLAN_CIPHER_SUITE_CCMP
,
1124 ieee80211_hw_set(wcn
->hw
, TIMING_BEACON_ONLY
);
1125 ieee80211_hw_set(wcn
->hw
, AMPDU_AGGREGATION
);
1126 ieee80211_hw_set(wcn
->hw
, CONNECTION_MONITOR
);
1127 ieee80211_hw_set(wcn
->hw
, SUPPORTS_PS
);
1128 ieee80211_hw_set(wcn
->hw
, SIGNAL_DBM
);
1129 ieee80211_hw_set(wcn
->hw
, HAS_RATE_CONTROL
);
1130 ieee80211_hw_set(wcn
->hw
, SINGLE_SCAN_ON_ALL_BANDS
);
1132 wcn
->hw
->wiphy
->interface_modes
= BIT(NL80211_IFTYPE_STATION
) |
1133 BIT(NL80211_IFTYPE_AP
) |
1134 BIT(NL80211_IFTYPE_ADHOC
) |
1135 BIT(NL80211_IFTYPE_MESH_POINT
);
1137 wcn
->hw
->wiphy
->bands
[NL80211_BAND_2GHZ
] = &wcn_band_2ghz
;
1138 if (wcn
->rf_id
!= RF_IRIS_WCN3620
)
1139 wcn
->hw
->wiphy
->bands
[NL80211_BAND_5GHZ
] = &wcn_band_5ghz
;
1141 wcn
->hw
->wiphy
->max_scan_ssids
= WCN36XX_MAX_SCAN_SSIDS
;
1142 wcn
->hw
->wiphy
->max_scan_ie_len
= WCN36XX_MAX_SCAN_IE_LEN
;
1144 wcn
->hw
->wiphy
->cipher_suites
= cipher_suites
;
1145 wcn
->hw
->wiphy
->n_cipher_suites
= ARRAY_SIZE(cipher_suites
);
1147 wcn
->hw
->wiphy
->flags
|= WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD
;
1150 wcn
->hw
->wiphy
->wowlan
= &wowlan_support
;
1153 wcn
->hw
->max_listen_interval
= 200;
1155 wcn
->hw
->queues
= 4;
1157 SET_IEEE80211_DEV(wcn
->hw
, wcn
->dev
);
1159 wcn
->hw
->sta_data_size
= sizeof(struct wcn36xx_sta
);
1160 wcn
->hw
->vif_data_size
= sizeof(struct wcn36xx_vif
);
1162 wiphy_ext_feature_set(wcn
->hw
->wiphy
,
1163 NL80211_EXT_FEATURE_CQM_RSSI_LIST
);
1168 static int wcn36xx_platform_get_resources(struct wcn36xx
*wcn
,
1169 struct platform_device
*pdev
)
1171 struct device_node
*mmio_node
;
1172 struct device_node
*iris_node
;
1173 struct resource
*res
;
1178 res
= platform_get_resource_byname(pdev
, IORESOURCE_IRQ
, "tx");
1180 wcn36xx_err("failed to get tx_irq\n");
1183 wcn
->tx_irq
= res
->start
;
1186 res
= platform_get_resource_byname(pdev
, IORESOURCE_IRQ
, "rx");
1188 wcn36xx_err("failed to get rx_irq\n");
1191 wcn
->rx_irq
= res
->start
;
1193 /* Acquire SMSM tx enable handle */
1194 wcn
->tx_enable_state
= qcom_smem_state_get(&pdev
->dev
,
1195 "tx-enable", &wcn
->tx_enable_state_bit
);
1196 if (IS_ERR(wcn
->tx_enable_state
)) {
1197 wcn36xx_err("failed to get tx-enable state\n");
1198 return PTR_ERR(wcn
->tx_enable_state
);
1201 /* Acquire SMSM tx rings empty handle */
1202 wcn
->tx_rings_empty_state
= qcom_smem_state_get(&pdev
->dev
,
1203 "tx-rings-empty", &wcn
->tx_rings_empty_state_bit
);
1204 if (IS_ERR(wcn
->tx_rings_empty_state
)) {
1205 wcn36xx_err("failed to get tx-rings-empty state\n");
1206 return PTR_ERR(wcn
->tx_rings_empty_state
);
1209 mmio_node
= of_parse_phandle(pdev
->dev
.parent
->of_node
, "qcom,mmio", 0);
1211 wcn36xx_err("failed to acquire qcom,mmio reference\n");
1215 wcn
->is_pronto
= !!of_device_is_compatible(mmio_node
, "qcom,pronto");
1217 /* Map the CCU memory */
1218 index
= of_property_match_string(mmio_node
, "reg-names", "ccu");
1219 wcn
->ccu_base
= of_iomap(mmio_node
, index
);
1220 if (!wcn
->ccu_base
) {
1221 wcn36xx_err("failed to map ccu memory\n");
1226 /* Map the DXE memory */
1227 index
= of_property_match_string(mmio_node
, "reg-names", "dxe");
1228 wcn
->dxe_base
= of_iomap(mmio_node
, index
);
1229 if (!wcn
->dxe_base
) {
1230 wcn36xx_err("failed to map dxe memory\n");
1235 /* External RF module */
1236 iris_node
= of_get_child_by_name(mmio_node
, "iris");
1238 if (of_device_is_compatible(iris_node
, "qcom,wcn3620"))
1239 wcn
->rf_id
= RF_IRIS_WCN3620
;
1240 of_node_put(iris_node
);
1243 of_node_put(mmio_node
);
1247 iounmap(wcn
->ccu_base
);
1249 of_node_put(mmio_node
);
1253 static int wcn36xx_probe(struct platform_device
*pdev
)
1255 struct ieee80211_hw
*hw
;
1256 struct wcn36xx
*wcn
;
1261 wcn36xx_dbg(WCN36XX_DBG_MAC
, "platform probe\n");
1263 wcnss
= dev_get_drvdata(pdev
->dev
.parent
);
1265 hw
= ieee80211_alloc_hw(sizeof(struct wcn36xx
), &wcn36xx_ops
);
1267 wcn36xx_err("failed to alloc hw\n");
1271 platform_set_drvdata(pdev
, hw
);
1274 wcn
->dev
= &pdev
->dev
;
1275 mutex_init(&wcn
->conf_mutex
);
1276 mutex_init(&wcn
->hal_mutex
);
1277 mutex_init(&wcn
->scan_lock
);
1279 INIT_WORK(&wcn
->scan_work
, wcn36xx_hw_scan_worker
);
1281 wcn
->smd_channel
= qcom_wcnss_open_channel(wcnss
, "WLAN_CTRL", wcn36xx_smd_rsp_process
, hw
);
1282 if (IS_ERR(wcn
->smd_channel
)) {
1283 wcn36xx_err("failed to open WLAN_CTRL channel\n");
1284 ret
= PTR_ERR(wcn
->smd_channel
);
1288 addr
= of_get_property(pdev
->dev
.of_node
, "local-mac-address", &ret
);
1289 if (addr
&& ret
!= ETH_ALEN
) {
1290 wcn36xx_err("invalid local-mac-address\n");
1294 wcn36xx_info("mac address: %pM\n", addr
);
1295 SET_IEEE80211_PERM_ADDR(wcn
->hw
, addr
);
1298 ret
= wcn36xx_platform_get_resources(wcn
, pdev
);
1302 wcn36xx_init_ieee80211(wcn
);
1303 ret
= ieee80211_register_hw(wcn
->hw
);
1310 iounmap(wcn
->ccu_base
);
1311 iounmap(wcn
->dxe_base
);
1313 ieee80211_free_hw(hw
);
1318 static int wcn36xx_remove(struct platform_device
*pdev
)
1320 struct ieee80211_hw
*hw
= platform_get_drvdata(pdev
);
1321 struct wcn36xx
*wcn
= hw
->priv
;
1322 wcn36xx_dbg(WCN36XX_DBG_MAC
, "platform remove\n");
1324 release_firmware(wcn
->nv
);
1326 ieee80211_unregister_hw(hw
);
1328 qcom_smem_state_put(wcn
->tx_enable_state
);
1329 qcom_smem_state_put(wcn
->tx_rings_empty_state
);
1331 rpmsg_destroy_ept(wcn
->smd_channel
);
1333 iounmap(wcn
->dxe_base
);
1334 iounmap(wcn
->ccu_base
);
1336 mutex_destroy(&wcn
->hal_mutex
);
1337 ieee80211_free_hw(hw
);
1342 static const struct of_device_id wcn36xx_of_match
[] = {
1343 { .compatible
= "qcom,wcnss-wlan" },
1346 MODULE_DEVICE_TABLE(of
, wcn36xx_of_match
);
1348 static struct platform_driver wcn36xx_driver
= {
1349 .probe
= wcn36xx_probe
,
1350 .remove
= wcn36xx_remove
,
1353 .of_match_table
= wcn36xx_of_match
,
1357 module_platform_driver(wcn36xx_driver
);
1359 MODULE_LICENSE("Dual BSD/GPL");
1360 MODULE_AUTHOR("Eugene Krasnikov k.eugene.e@gmail.com");
1361 MODULE_FIRMWARE(WLAN_NV_FILE
);