1 /* 2 * Copyright (c) 2013 Eugene Krasnikov <k.eugene.e@gmail.com> 3 * 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. 7 * 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. 15 */ 16 17 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 18 19 #include <linux/module.h> 20 #include <linux/firmware.h> 21 #include <linux/platform_device.h> 22 #include <linux/of_address.h> 23 #include <linux/of_device.h> 24 #include <linux/of_irq.h> 25 #include <linux/rpmsg.h> 26 #include <linux/soc/qcom/smem_state.h> 27 #include <linux/soc/qcom/wcnss_ctrl.h> 28 #include "wcn36xx.h" 29 #include "testmode.h" 30 31 unsigned int wcn36xx_dbg_mask; 32 module_param_named(debug_mask, wcn36xx_dbg_mask, uint, 0644); 33 MODULE_PARM_DESC(debug_mask, "Debugging mask"); 34 35 #define CHAN2G(_freq, _idx) { \ 36 .band = NL80211_BAND_2GHZ, \ 37 .center_freq = (_freq), \ 38 .hw_value = (_idx), \ 39 .max_power = 25, \ 40 } 41 42 #define CHAN5G(_freq, _idx) { \ 43 .band = NL80211_BAND_5GHZ, \ 44 .center_freq = (_freq), \ 45 .hw_value = (_idx), \ 46 .max_power = 25, \ 47 } 48 49 /* The wcn firmware expects channel values to matching 50 * their mnemonic values. So use these for .hw_value. */ 51 static struct ieee80211_channel wcn_2ghz_channels[] = { 52 CHAN2G(2412, 1), /* Channel 1 */ 53 CHAN2G(2417, 2), /* Channel 2 */ 54 CHAN2G(2422, 3), /* Channel 3 */ 55 CHAN2G(2427, 4), /* Channel 4 */ 56 CHAN2G(2432, 5), /* Channel 5 */ 57 CHAN2G(2437, 6), /* Channel 6 */ 58 CHAN2G(2442, 7), /* Channel 7 */ 59 CHAN2G(2447, 8), /* Channel 8 */ 60 CHAN2G(2452, 9), /* Channel 9 */ 61 CHAN2G(2457, 10), /* Channel 10 */ 62 CHAN2G(2462, 11), /* Channel 11 */ 63 CHAN2G(2467, 12), /* Channel 12 */ 64 CHAN2G(2472, 13), /* Channel 13 */ 65 CHAN2G(2484, 14) /* Channel 14 */ 66 67 }; 68 69 static struct ieee80211_channel wcn_5ghz_channels[] = { 70 CHAN5G(5180, 36), 71 CHAN5G(5200, 40), 72 CHAN5G(5220, 44), 73 CHAN5G(5240, 48), 74 CHAN5G(5260, 52), 75 CHAN5G(5280, 56), 76 CHAN5G(5300, 60), 77 CHAN5G(5320, 64), 78 CHAN5G(5500, 100), 79 CHAN5G(5520, 104), 80 CHAN5G(5540, 108), 81 CHAN5G(5560, 112), 82 CHAN5G(5580, 116), 83 CHAN5G(5600, 120), 84 CHAN5G(5620, 124), 85 CHAN5G(5640, 128), 86 CHAN5G(5660, 132), 87 CHAN5G(5700, 140), 88 CHAN5G(5745, 149), 89 CHAN5G(5765, 153), 90 CHAN5G(5785, 157), 91 CHAN5G(5805, 161), 92 CHAN5G(5825, 165) 93 }; 94 95 #define RATE(_bitrate, _hw_rate, _flags) { \ 96 .bitrate = (_bitrate), \ 97 .flags = (_flags), \ 98 .hw_value = (_hw_rate), \ 99 .hw_value_short = (_hw_rate) \ 100 } 101 102 static struct ieee80211_rate wcn_2ghz_rates[] = { 103 RATE(10, HW_RATE_INDEX_1MBPS, 0), 104 RATE(20, HW_RATE_INDEX_2MBPS, IEEE80211_RATE_SHORT_PREAMBLE), 105 RATE(55, HW_RATE_INDEX_5_5MBPS, IEEE80211_RATE_SHORT_PREAMBLE), 106 RATE(110, HW_RATE_INDEX_11MBPS, IEEE80211_RATE_SHORT_PREAMBLE), 107 RATE(60, HW_RATE_INDEX_6MBPS, 0), 108 RATE(90, HW_RATE_INDEX_9MBPS, 0), 109 RATE(120, HW_RATE_INDEX_12MBPS, 0), 110 RATE(180, HW_RATE_INDEX_18MBPS, 0), 111 RATE(240, HW_RATE_INDEX_24MBPS, 0), 112 RATE(360, HW_RATE_INDEX_36MBPS, 0), 113 RATE(480, HW_RATE_INDEX_48MBPS, 0), 114 RATE(540, HW_RATE_INDEX_54MBPS, 0) 115 }; 116 117 static struct ieee80211_rate wcn_5ghz_rates[] = { 118 RATE(60, HW_RATE_INDEX_6MBPS, 0), 119 RATE(90, HW_RATE_INDEX_9MBPS, 0), 120 RATE(120, HW_RATE_INDEX_12MBPS, 0), 121 RATE(180, HW_RATE_INDEX_18MBPS, 0), 122 RATE(240, HW_RATE_INDEX_24MBPS, 0), 123 RATE(360, HW_RATE_INDEX_36MBPS, 0), 124 RATE(480, HW_RATE_INDEX_48MBPS, 0), 125 RATE(540, HW_RATE_INDEX_54MBPS, 0) 126 }; 127 128 static struct ieee80211_supported_band wcn_band_2ghz = { 129 .channels = wcn_2ghz_channels, 130 .n_channels = ARRAY_SIZE(wcn_2ghz_channels), 131 .bitrates = wcn_2ghz_rates, 132 .n_bitrates = ARRAY_SIZE(wcn_2ghz_rates), 133 .ht_cap = { 134 .cap = IEEE80211_HT_CAP_GRN_FLD | 135 IEEE80211_HT_CAP_SGI_20 | 136 IEEE80211_HT_CAP_DSSSCCK40 | 137 IEEE80211_HT_CAP_LSIG_TXOP_PROT, 138 .ht_supported = true, 139 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K, 140 .ampdu_density = IEEE80211_HT_MPDU_DENSITY_16, 141 .mcs = { 142 .rx_mask = { 0xff, 0, 0, 0, 0, 0, 0, 0, 0, 0, }, 143 .rx_highest = cpu_to_le16(72), 144 .tx_params = IEEE80211_HT_MCS_TX_DEFINED, 145 } 146 } 147 }; 148 149 static struct ieee80211_supported_band wcn_band_5ghz = { 150 .channels = wcn_5ghz_channels, 151 .n_channels = ARRAY_SIZE(wcn_5ghz_channels), 152 .bitrates = wcn_5ghz_rates, 153 .n_bitrates = ARRAY_SIZE(wcn_5ghz_rates), 154 .ht_cap = { 155 .cap = IEEE80211_HT_CAP_GRN_FLD | 156 IEEE80211_HT_CAP_SGI_20 | 157 IEEE80211_HT_CAP_DSSSCCK40 | 158 IEEE80211_HT_CAP_LSIG_TXOP_PROT | 159 IEEE80211_HT_CAP_SGI_40 | 160 IEEE80211_HT_CAP_SUP_WIDTH_20_40, 161 .ht_supported = true, 162 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K, 163 .ampdu_density = IEEE80211_HT_MPDU_DENSITY_16, 164 .mcs = { 165 .rx_mask = { 0xff, 0, 0, 0, 0, 0, 0, 0, 0, 0, }, 166 .rx_highest = cpu_to_le16(72), 167 .tx_params = IEEE80211_HT_MCS_TX_DEFINED, 168 } 169 } 170 }; 171 172 #ifdef CONFIG_PM 173 174 static const struct wiphy_wowlan_support wowlan_support = { 175 .flags = WIPHY_WOWLAN_ANY 176 }; 177 178 #endif 179 180 static inline u8 get_sta_index(struct ieee80211_vif *vif, 181 struct wcn36xx_sta *sta_priv) 182 { 183 return NL80211_IFTYPE_STATION == vif->type ? 184 sta_priv->bss_sta_index : 185 sta_priv->sta_index; 186 } 187 188 static const char * const wcn36xx_caps_names[] = { 189 "MCC", /* 0 */ 190 "P2P", /* 1 */ 191 "DOT11AC", /* 2 */ 192 "SLM_SESSIONIZATION", /* 3 */ 193 "DOT11AC_OPMODE", /* 4 */ 194 "SAP32STA", /* 5 */ 195 "TDLS", /* 6 */ 196 "P2P_GO_NOA_DECOUPLE_INIT_SCAN",/* 7 */ 197 "WLANACTIVE_OFFLOAD", /* 8 */ 198 "BEACON_OFFLOAD", /* 9 */ 199 "SCAN_OFFLOAD", /* 10 */ 200 "ROAM_OFFLOAD", /* 11 */ 201 "BCN_MISS_OFFLOAD", /* 12 */ 202 "STA_POWERSAVE", /* 13 */ 203 "STA_ADVANCED_PWRSAVE", /* 14 */ 204 "AP_UAPSD", /* 15 */ 205 "AP_DFS", /* 16 */ 206 "BLOCKACK", /* 17 */ 207 "PHY_ERR", /* 18 */ 208 "BCN_FILTER", /* 19 */ 209 "RTT", /* 20 */ 210 "RATECTRL", /* 21 */ 211 "WOW", /* 22 */ 212 "WLAN_ROAM_SCAN_OFFLOAD", /* 23 */ 213 "SPECULATIVE_PS_POLL", /* 24 */ 214 "SCAN_SCH", /* 25 */ 215 "IBSS_HEARTBEAT_OFFLOAD", /* 26 */ 216 "WLAN_SCAN_OFFLOAD", /* 27 */ 217 "WLAN_PERIODIC_TX_PTRN", /* 28 */ 218 "ADVANCE_TDLS", /* 29 */ 219 "BATCH_SCAN", /* 30 */ 220 "FW_IN_TX_PATH", /* 31 */ 221 "EXTENDED_NSOFFLOAD_SLOT", /* 32 */ 222 "CH_SWITCH_V1", /* 33 */ 223 "HT40_OBSS_SCAN", /* 34 */ 224 "UPDATE_CHANNEL_LIST", /* 35 */ 225 "WLAN_MCADDR_FLT", /* 36 */ 226 "WLAN_CH144", /* 37 */ 227 "NAN", /* 38 */ 228 "TDLS_SCAN_COEXISTENCE", /* 39 */ 229 "LINK_LAYER_STATS_MEAS", /* 40 */ 230 "MU_MIMO", /* 41 */ 231 "EXTENDED_SCAN", /* 42 */ 232 "DYNAMIC_WMM_PS", /* 43 */ 233 "MAC_SPOOFED_SCAN", /* 44 */ 234 "BMU_ERROR_GENERIC_RECOVERY", /* 45 */ 235 "DISA", /* 46 */ 236 "FW_STATS", /* 47 */ 237 "WPS_PRBRSP_TMPL", /* 48 */ 238 "BCN_IE_FLT_DELTA", /* 49 */ 239 "TDLS_OFF_CHANNEL", /* 51 */ 240 "RTT3", /* 52 */ 241 "MGMT_FRAME_LOGGING", /* 53 */ 242 "ENHANCED_TXBD_COMPLETION", /* 54 */ 243 "LOGGING_ENHANCEMENT", /* 55 */ 244 "EXT_SCAN_ENHANCED", /* 56 */ 245 "MEMORY_DUMP_SUPPORTED", /* 57 */ 246 "PER_PKT_STATS_SUPPORTED", /* 58 */ 247 "EXT_LL_STAT", /* 60 */ 248 "WIFI_CONFIG", /* 61 */ 249 "ANTENNA_DIVERSITY_SELECTION", /* 62 */ 250 }; 251 252 static const char *wcn36xx_get_cap_name(enum place_holder_in_cap_bitmap x) 253 { 254 if (x >= ARRAY_SIZE(wcn36xx_caps_names)) 255 return "UNKNOWN"; 256 return wcn36xx_caps_names[x]; 257 } 258 259 static void wcn36xx_feat_caps_info(struct wcn36xx *wcn) 260 { 261 int i; 262 263 for (i = 0; i < MAX_FEATURE_SUPPORTED; i++) { 264 if (get_feat_caps(wcn->fw_feat_caps, i)) 265 wcn36xx_dbg(WCN36XX_DBG_MAC, "FW Cap %s\n", wcn36xx_get_cap_name(i)); 266 } 267 } 268 269 static int wcn36xx_start(struct ieee80211_hw *hw) 270 { 271 struct wcn36xx *wcn = hw->priv; 272 int ret; 273 274 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac start\n"); 275 276 /* SMD initialization */ 277 ret = wcn36xx_smd_open(wcn); 278 if (ret) { 279 wcn36xx_err("Failed to open smd channel: %d\n", ret); 280 goto out_err; 281 } 282 283 /* Allocate memory pools for Mgmt BD headers and Data BD headers */ 284 ret = wcn36xx_dxe_allocate_mem_pools(wcn); 285 if (ret) { 286 wcn36xx_err("Failed to alloc DXE mempool: %d\n", ret); 287 goto out_smd_close; 288 } 289 290 ret = wcn36xx_dxe_alloc_ctl_blks(wcn); 291 if (ret) { 292 wcn36xx_err("Failed to alloc DXE ctl blocks: %d\n", ret); 293 goto out_free_dxe_pool; 294 } 295 296 wcn->hal_buf = kmalloc(WCN36XX_HAL_BUF_SIZE, GFP_KERNEL); 297 if (!wcn->hal_buf) { 298 wcn36xx_err("Failed to allocate smd buf\n"); 299 ret = -ENOMEM; 300 goto out_free_dxe_ctl; 301 } 302 303 ret = wcn36xx_smd_load_nv(wcn); 304 if (ret) { 305 wcn36xx_err("Failed to push NV to chip\n"); 306 goto out_free_smd_buf; 307 } 308 309 ret = wcn36xx_smd_start(wcn); 310 if (ret) { 311 wcn36xx_err("Failed to start chip\n"); 312 goto out_free_smd_buf; 313 } 314 315 if (!wcn36xx_is_fw_version(wcn, 1, 2, 2, 24)) { 316 ret = wcn36xx_smd_feature_caps_exchange(wcn); 317 if (ret) 318 wcn36xx_warn("Exchange feature caps failed\n"); 319 else 320 wcn36xx_feat_caps_info(wcn); 321 } 322 323 /* DMA channel initialization */ 324 ret = wcn36xx_dxe_init(wcn); 325 if (ret) { 326 wcn36xx_err("DXE init failed\n"); 327 goto out_smd_stop; 328 } 329 330 wcn36xx_debugfs_init(wcn); 331 332 INIT_LIST_HEAD(&wcn->vif_list); 333 spin_lock_init(&wcn->dxe_lock); 334 335 return 0; 336 337 out_smd_stop: 338 wcn36xx_smd_stop(wcn); 339 out_free_smd_buf: 340 kfree(wcn->hal_buf); 341 out_free_dxe_ctl: 342 wcn36xx_dxe_free_ctl_blks(wcn); 343 out_free_dxe_pool: 344 wcn36xx_dxe_free_mem_pools(wcn); 345 out_smd_close: 346 wcn36xx_smd_close(wcn); 347 out_err: 348 return ret; 349 } 350 351 static void wcn36xx_stop(struct ieee80211_hw *hw) 352 { 353 struct wcn36xx *wcn = hw->priv; 354 355 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac stop\n"); 356 357 cancel_work_sync(&wcn->scan_work); 358 359 mutex_lock(&wcn->scan_lock); 360 if (wcn->scan_req) { 361 struct cfg80211_scan_info scan_info = { 362 .aborted = true, 363 }; 364 365 ieee80211_scan_completed(wcn->hw, &scan_info); 366 } 367 wcn->scan_req = NULL; 368 mutex_unlock(&wcn->scan_lock); 369 370 wcn36xx_debugfs_exit(wcn); 371 wcn36xx_smd_stop(wcn); 372 wcn36xx_dxe_deinit(wcn); 373 wcn36xx_smd_close(wcn); 374 375 wcn36xx_dxe_free_mem_pools(wcn); 376 wcn36xx_dxe_free_ctl_blks(wcn); 377 378 kfree(wcn->hal_buf); 379 } 380 381 static int wcn36xx_config(struct ieee80211_hw *hw, u32 changed) 382 { 383 struct wcn36xx *wcn = hw->priv; 384 struct ieee80211_vif *vif = NULL; 385 struct wcn36xx_vif *tmp; 386 387 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac config changed 0x%08x\n", changed); 388 389 mutex_lock(&wcn->conf_mutex); 390 391 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { 392 int ch = WCN36XX_HW_CHANNEL(wcn); 393 wcn36xx_dbg(WCN36XX_DBG_MAC, "wcn36xx_config channel switch=%d\n", 394 ch); 395 list_for_each_entry(tmp, &wcn->vif_list, list) { 396 vif = wcn36xx_priv_to_vif(tmp); 397 wcn36xx_smd_switch_channel(wcn, vif, ch); 398 } 399 } 400 401 if (changed & IEEE80211_CONF_CHANGE_PS) { 402 list_for_each_entry(tmp, &wcn->vif_list, list) { 403 vif = wcn36xx_priv_to_vif(tmp); 404 if (hw->conf.flags & IEEE80211_CONF_PS) { 405 if (vif->bss_conf.ps) /* ps allowed ? */ 406 wcn36xx_pmc_enter_bmps_state(wcn, vif); 407 } else { 408 wcn36xx_pmc_exit_bmps_state(wcn, vif); 409 } 410 } 411 } 412 413 mutex_unlock(&wcn->conf_mutex); 414 415 return 0; 416 } 417 418 static void wcn36xx_configure_filter(struct ieee80211_hw *hw, 419 unsigned int changed, 420 unsigned int *total, u64 multicast) 421 { 422 struct wcn36xx_hal_rcv_flt_mc_addr_list_type *fp; 423 struct wcn36xx *wcn = hw->priv; 424 struct wcn36xx_vif *tmp; 425 struct ieee80211_vif *vif = NULL; 426 427 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac configure filter\n"); 428 429 mutex_lock(&wcn->conf_mutex); 430 431 *total &= FIF_ALLMULTI; 432 433 fp = (void *)(unsigned long)multicast; 434 list_for_each_entry(tmp, &wcn->vif_list, list) { 435 vif = wcn36xx_priv_to_vif(tmp); 436 437 /* FW handles MC filtering only when connected as STA */ 438 if (*total & FIF_ALLMULTI) 439 wcn36xx_smd_set_mc_list(wcn, vif, NULL); 440 else if (NL80211_IFTYPE_STATION == vif->type && tmp->sta_assoc) 441 wcn36xx_smd_set_mc_list(wcn, vif, fp); 442 } 443 444 mutex_unlock(&wcn->conf_mutex); 445 kfree(fp); 446 } 447 448 static u64 wcn36xx_prepare_multicast(struct ieee80211_hw *hw, 449 struct netdev_hw_addr_list *mc_list) 450 { 451 struct wcn36xx_hal_rcv_flt_mc_addr_list_type *fp; 452 struct netdev_hw_addr *ha; 453 454 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac prepare multicast list\n"); 455 fp = kzalloc(sizeof(*fp), GFP_ATOMIC); 456 if (!fp) { 457 wcn36xx_err("Out of memory setting filters.\n"); 458 return 0; 459 } 460 461 fp->mc_addr_count = 0; 462 /* update multicast filtering parameters */ 463 if (netdev_hw_addr_list_count(mc_list) <= 464 WCN36XX_HAL_MAX_NUM_MULTICAST_ADDRESS) { 465 netdev_hw_addr_list_for_each(ha, mc_list) { 466 memcpy(fp->mc_addr[fp->mc_addr_count], 467 ha->addr, ETH_ALEN); 468 fp->mc_addr_count++; 469 } 470 } 471 472 return (u64)(unsigned long)fp; 473 } 474 475 static void wcn36xx_tx(struct ieee80211_hw *hw, 476 struct ieee80211_tx_control *control, 477 struct sk_buff *skb) 478 { 479 struct wcn36xx *wcn = hw->priv; 480 struct wcn36xx_sta *sta_priv = NULL; 481 482 if (control->sta) 483 sta_priv = wcn36xx_sta_to_priv(control->sta); 484 485 if (wcn36xx_start_tx(wcn, sta_priv, skb)) 486 ieee80211_free_txskb(wcn->hw, skb); 487 } 488 489 static int wcn36xx_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, 490 struct ieee80211_vif *vif, 491 struct ieee80211_sta *sta, 492 struct ieee80211_key_conf *key_conf) 493 { 494 struct wcn36xx *wcn = hw->priv; 495 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif); 496 struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(sta); 497 int ret = 0; 498 u8 key[WLAN_MAX_KEY_LEN]; 499 500 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac80211 set key\n"); 501 wcn36xx_dbg(WCN36XX_DBG_MAC, "Key: cmd=0x%x algo:0x%x, id:%d, len:%d flags 0x%x\n", 502 cmd, key_conf->cipher, key_conf->keyidx, 503 key_conf->keylen, key_conf->flags); 504 wcn36xx_dbg_dump(WCN36XX_DBG_MAC, "KEY: ", 505 key_conf->key, 506 key_conf->keylen); 507 508 mutex_lock(&wcn->conf_mutex); 509 510 switch (key_conf->cipher) { 511 case WLAN_CIPHER_SUITE_WEP40: 512 vif_priv->encrypt_type = WCN36XX_HAL_ED_WEP40; 513 break; 514 case WLAN_CIPHER_SUITE_WEP104: 515 vif_priv->encrypt_type = WCN36XX_HAL_ED_WEP40; 516 break; 517 case WLAN_CIPHER_SUITE_CCMP: 518 vif_priv->encrypt_type = WCN36XX_HAL_ED_CCMP; 519 break; 520 case WLAN_CIPHER_SUITE_TKIP: 521 vif_priv->encrypt_type = WCN36XX_HAL_ED_TKIP; 522 break; 523 default: 524 wcn36xx_err("Unsupported key type 0x%x\n", 525 key_conf->cipher); 526 ret = -EOPNOTSUPP; 527 goto out; 528 } 529 530 switch (cmd) { 531 case SET_KEY: 532 if (WCN36XX_HAL_ED_TKIP == vif_priv->encrypt_type) { 533 /* 534 * Supplicant is sending key in the wrong order: 535 * Temporal Key (16 b) - TX MIC (8 b) - RX MIC (8 b) 536 * but HW expects it to be in the order as described in 537 * IEEE 802.11 spec (see chapter 11.7) like this: 538 * Temporal Key (16 b) - RX MIC (8 b) - TX MIC (8 b) 539 */ 540 memcpy(key, key_conf->key, 16); 541 memcpy(key + 16, key_conf->key + 24, 8); 542 memcpy(key + 24, key_conf->key + 16, 8); 543 } else { 544 memcpy(key, key_conf->key, key_conf->keylen); 545 } 546 547 if (IEEE80211_KEY_FLAG_PAIRWISE & key_conf->flags) { 548 sta_priv->is_data_encrypted = true; 549 /* Reconfigure bss with encrypt_type */ 550 if (NL80211_IFTYPE_STATION == vif->type) 551 wcn36xx_smd_config_bss(wcn, 552 vif, 553 sta, 554 sta->addr, 555 true); 556 557 wcn36xx_smd_set_stakey(wcn, 558 vif_priv->encrypt_type, 559 key_conf->keyidx, 560 key_conf->keylen, 561 key, 562 get_sta_index(vif, sta_priv)); 563 } else { 564 wcn36xx_smd_set_bsskey(wcn, 565 vif_priv->encrypt_type, 566 vif_priv->bss_index, 567 key_conf->keyidx, 568 key_conf->keylen, 569 key); 570 if ((WLAN_CIPHER_SUITE_WEP40 == key_conf->cipher) || 571 (WLAN_CIPHER_SUITE_WEP104 == key_conf->cipher)) { 572 sta_priv->is_data_encrypted = true; 573 wcn36xx_smd_set_stakey(wcn, 574 vif_priv->encrypt_type, 575 key_conf->keyidx, 576 key_conf->keylen, 577 key, 578 get_sta_index(vif, sta_priv)); 579 } 580 } 581 break; 582 case DISABLE_KEY: 583 if (!(IEEE80211_KEY_FLAG_PAIRWISE & key_conf->flags)) { 584 if (vif_priv->bss_index != WCN36XX_HAL_BSS_INVALID_IDX) 585 wcn36xx_smd_remove_bsskey(wcn, 586 vif_priv->encrypt_type, 587 vif_priv->bss_index, 588 key_conf->keyidx); 589 590 vif_priv->encrypt_type = WCN36XX_HAL_ED_NONE; 591 } else { 592 sta_priv->is_data_encrypted = false; 593 /* do not remove key if disassociated */ 594 if (sta_priv->aid) 595 wcn36xx_smd_remove_stakey(wcn, 596 vif_priv->encrypt_type, 597 key_conf->keyidx, 598 get_sta_index(vif, sta_priv)); 599 } 600 break; 601 default: 602 wcn36xx_err("Unsupported key cmd 0x%x\n", cmd); 603 ret = -EOPNOTSUPP; 604 goto out; 605 } 606 607 out: 608 mutex_unlock(&wcn->conf_mutex); 609 610 return ret; 611 } 612 613 static void wcn36xx_hw_scan_worker(struct work_struct *work) 614 { 615 struct wcn36xx *wcn = container_of(work, struct wcn36xx, scan_work); 616 struct cfg80211_scan_request *req = wcn->scan_req; 617 u8 channels[WCN36XX_HAL_PNO_MAX_NETW_CHANNELS_EX]; 618 struct cfg80211_scan_info scan_info = {}; 619 bool aborted = false; 620 int i; 621 622 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac80211 scan %d channels worker\n", req->n_channels); 623 624 for (i = 0; i < req->n_channels; i++) 625 channels[i] = req->channels[i]->hw_value; 626 627 wcn36xx_smd_update_scan_params(wcn, channels, req->n_channels); 628 629 wcn36xx_smd_init_scan(wcn, HAL_SYS_MODE_SCAN); 630 for (i = 0; i < req->n_channels; i++) { 631 mutex_lock(&wcn->scan_lock); 632 aborted = wcn->scan_aborted; 633 mutex_unlock(&wcn->scan_lock); 634 635 if (aborted) 636 break; 637 638 wcn->scan_freq = req->channels[i]->center_freq; 639 wcn->scan_band = req->channels[i]->band; 640 641 wcn36xx_smd_start_scan(wcn, req->channels[i]->hw_value); 642 msleep(30); 643 wcn36xx_smd_end_scan(wcn, req->channels[i]->hw_value); 644 645 wcn->scan_freq = 0; 646 } 647 wcn36xx_smd_finish_scan(wcn, HAL_SYS_MODE_SCAN); 648 649 scan_info.aborted = aborted; 650 ieee80211_scan_completed(wcn->hw, &scan_info); 651 652 mutex_lock(&wcn->scan_lock); 653 wcn->scan_req = NULL; 654 mutex_unlock(&wcn->scan_lock); 655 } 656 657 static int wcn36xx_hw_scan(struct ieee80211_hw *hw, 658 struct ieee80211_vif *vif, 659 struct ieee80211_scan_request *hw_req) 660 { 661 struct wcn36xx *wcn = hw->priv; 662 mutex_lock(&wcn->scan_lock); 663 if (wcn->scan_req) { 664 mutex_unlock(&wcn->scan_lock); 665 return -EBUSY; 666 } 667 668 wcn->scan_aborted = false; 669 wcn->scan_req = &hw_req->req; 670 671 mutex_unlock(&wcn->scan_lock); 672 673 if (!get_feat_caps(wcn->fw_feat_caps, SCAN_OFFLOAD)) { 674 /* legacy manual/sw scan */ 675 schedule_work(&wcn->scan_work); 676 return 0; 677 } 678 679 return wcn36xx_smd_start_hw_scan(wcn, vif, &hw_req->req); 680 } 681 682 static void wcn36xx_cancel_hw_scan(struct ieee80211_hw *hw, 683 struct ieee80211_vif *vif) 684 { 685 struct wcn36xx *wcn = hw->priv; 686 687 mutex_lock(&wcn->scan_lock); 688 wcn->scan_aborted = true; 689 mutex_unlock(&wcn->scan_lock); 690 691 if (get_feat_caps(wcn->fw_feat_caps, SCAN_OFFLOAD)) { 692 /* ieee80211_scan_completed will be called on FW scan 693 * indication */ 694 wcn36xx_smd_stop_hw_scan(wcn); 695 } else { 696 struct cfg80211_scan_info scan_info = { 697 .aborted = true, 698 }; 699 700 cancel_work_sync(&wcn->scan_work); 701 ieee80211_scan_completed(wcn->hw, &scan_info); 702 } 703 } 704 705 static void wcn36xx_update_allowed_rates(struct ieee80211_sta *sta, 706 enum nl80211_band band) 707 { 708 int i, size; 709 u16 *rates_table; 710 struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(sta); 711 u32 rates = sta->supp_rates[band]; 712 713 memset(&sta_priv->supported_rates, 0, 714 sizeof(sta_priv->supported_rates)); 715 sta_priv->supported_rates.op_rate_mode = STA_11n; 716 717 size = ARRAY_SIZE(sta_priv->supported_rates.dsss_rates); 718 rates_table = sta_priv->supported_rates.dsss_rates; 719 if (band == NL80211_BAND_2GHZ) { 720 for (i = 0; i < size; i++) { 721 if (rates & 0x01) { 722 rates_table[i] = wcn_2ghz_rates[i].hw_value; 723 rates = rates >> 1; 724 } 725 } 726 } 727 728 size = ARRAY_SIZE(sta_priv->supported_rates.ofdm_rates); 729 rates_table = sta_priv->supported_rates.ofdm_rates; 730 for (i = 0; i < size; i++) { 731 if (rates & 0x01) { 732 rates_table[i] = wcn_5ghz_rates[i].hw_value; 733 rates = rates >> 1; 734 } 735 } 736 737 if (sta->ht_cap.ht_supported) { 738 BUILD_BUG_ON(sizeof(sta->ht_cap.mcs.rx_mask) > 739 sizeof(sta_priv->supported_rates.supported_mcs_set)); 740 memcpy(sta_priv->supported_rates.supported_mcs_set, 741 sta->ht_cap.mcs.rx_mask, 742 sizeof(sta->ht_cap.mcs.rx_mask)); 743 } 744 } 745 void wcn36xx_set_default_rates(struct wcn36xx_hal_supported_rates *rates) 746 { 747 u16 ofdm_rates[WCN36XX_HAL_NUM_OFDM_RATES] = { 748 HW_RATE_INDEX_6MBPS, 749 HW_RATE_INDEX_9MBPS, 750 HW_RATE_INDEX_12MBPS, 751 HW_RATE_INDEX_18MBPS, 752 HW_RATE_INDEX_24MBPS, 753 HW_RATE_INDEX_36MBPS, 754 HW_RATE_INDEX_48MBPS, 755 HW_RATE_INDEX_54MBPS 756 }; 757 u16 dsss_rates[WCN36XX_HAL_NUM_DSSS_RATES] = { 758 HW_RATE_INDEX_1MBPS, 759 HW_RATE_INDEX_2MBPS, 760 HW_RATE_INDEX_5_5MBPS, 761 HW_RATE_INDEX_11MBPS 762 }; 763 764 rates->op_rate_mode = STA_11n; 765 memcpy(rates->dsss_rates, dsss_rates, 766 sizeof(*dsss_rates) * WCN36XX_HAL_NUM_DSSS_RATES); 767 memcpy(rates->ofdm_rates, ofdm_rates, 768 sizeof(*ofdm_rates) * WCN36XX_HAL_NUM_OFDM_RATES); 769 rates->supported_mcs_set[0] = 0xFF; 770 } 771 static void wcn36xx_bss_info_changed(struct ieee80211_hw *hw, 772 struct ieee80211_vif *vif, 773 struct ieee80211_bss_conf *bss_conf, 774 u32 changed) 775 { 776 struct wcn36xx *wcn = hw->priv; 777 struct sk_buff *skb = NULL; 778 u16 tim_off, tim_len; 779 enum wcn36xx_hal_link_state link_state; 780 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif); 781 782 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss info changed vif %p changed 0x%08x\n", 783 vif, changed); 784 785 mutex_lock(&wcn->conf_mutex); 786 787 if (changed & BSS_CHANGED_BEACON_INFO) { 788 wcn36xx_dbg(WCN36XX_DBG_MAC, 789 "mac bss changed dtim period %d\n", 790 bss_conf->dtim_period); 791 792 vif_priv->dtim_period = bss_conf->dtim_period; 793 } 794 795 if (changed & BSS_CHANGED_BSSID) { 796 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss changed_bssid %pM\n", 797 bss_conf->bssid); 798 799 if (!is_zero_ether_addr(bss_conf->bssid)) { 800 vif_priv->is_joining = true; 801 vif_priv->bss_index = WCN36XX_HAL_BSS_INVALID_IDX; 802 wcn36xx_smd_set_link_st(wcn, bss_conf->bssid, vif->addr, 803 WCN36XX_HAL_LINK_PREASSOC_STATE); 804 wcn36xx_smd_join(wcn, bss_conf->bssid, 805 vif->addr, WCN36XX_HW_CHANNEL(wcn)); 806 wcn36xx_smd_config_bss(wcn, vif, NULL, 807 bss_conf->bssid, false); 808 } else { 809 vif_priv->is_joining = false; 810 wcn36xx_smd_delete_bss(wcn, vif); 811 wcn36xx_smd_set_link_st(wcn, bss_conf->bssid, vif->addr, 812 WCN36XX_HAL_LINK_IDLE_STATE); 813 vif_priv->encrypt_type = WCN36XX_HAL_ED_NONE; 814 } 815 } 816 817 if (changed & BSS_CHANGED_SSID) { 818 wcn36xx_dbg(WCN36XX_DBG_MAC, 819 "mac bss changed ssid\n"); 820 wcn36xx_dbg_dump(WCN36XX_DBG_MAC, "ssid ", 821 bss_conf->ssid, bss_conf->ssid_len); 822 823 vif_priv->ssid.length = bss_conf->ssid_len; 824 memcpy(&vif_priv->ssid.ssid, 825 bss_conf->ssid, 826 bss_conf->ssid_len); 827 } 828 829 if (changed & BSS_CHANGED_ASSOC) { 830 vif_priv->is_joining = false; 831 if (bss_conf->assoc) { 832 struct ieee80211_sta *sta; 833 struct wcn36xx_sta *sta_priv; 834 835 wcn36xx_dbg(WCN36XX_DBG_MAC, 836 "mac assoc bss %pM vif %pM AID=%d\n", 837 bss_conf->bssid, 838 vif->addr, 839 bss_conf->aid); 840 841 vif_priv->sta_assoc = true; 842 843 /* 844 * Holding conf_mutex ensures mutal exclusion with 845 * wcn36xx_sta_remove() and as such ensures that sta 846 * won't be freed while we're operating on it. As such 847 * we do not need to hold the rcu_read_lock(). 848 */ 849 sta = ieee80211_find_sta(vif, bss_conf->bssid); 850 if (!sta) { 851 wcn36xx_err("sta %pM is not found\n", 852 bss_conf->bssid); 853 goto out; 854 } 855 sta_priv = wcn36xx_sta_to_priv(sta); 856 857 wcn36xx_update_allowed_rates(sta, WCN36XX_BAND(wcn)); 858 859 wcn36xx_smd_set_link_st(wcn, bss_conf->bssid, 860 vif->addr, 861 WCN36XX_HAL_LINK_POSTASSOC_STATE); 862 wcn36xx_smd_config_bss(wcn, vif, sta, 863 bss_conf->bssid, 864 true); 865 sta_priv->aid = bss_conf->aid; 866 /* 867 * config_sta must be called from because this is the 868 * place where AID is available. 869 */ 870 wcn36xx_smd_config_sta(wcn, vif, sta); 871 } else { 872 wcn36xx_dbg(WCN36XX_DBG_MAC, 873 "disassociated bss %pM vif %pM AID=%d\n", 874 bss_conf->bssid, 875 vif->addr, 876 bss_conf->aid); 877 vif_priv->sta_assoc = false; 878 wcn36xx_smd_set_link_st(wcn, 879 bss_conf->bssid, 880 vif->addr, 881 WCN36XX_HAL_LINK_IDLE_STATE); 882 } 883 } 884 885 if (changed & BSS_CHANGED_AP_PROBE_RESP) { 886 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss changed ap probe resp\n"); 887 skb = ieee80211_proberesp_get(hw, vif); 888 if (!skb) { 889 wcn36xx_err("failed to alloc probereq skb\n"); 890 goto out; 891 } 892 893 wcn36xx_smd_update_proberesp_tmpl(wcn, vif, skb); 894 dev_kfree_skb(skb); 895 } 896 897 if (changed & BSS_CHANGED_BEACON_ENABLED || 898 changed & BSS_CHANGED_BEACON) { 899 wcn36xx_dbg(WCN36XX_DBG_MAC, 900 "mac bss changed beacon enabled %d\n", 901 bss_conf->enable_beacon); 902 903 if (bss_conf->enable_beacon) { 904 vif_priv->dtim_period = bss_conf->dtim_period; 905 vif_priv->bss_index = WCN36XX_HAL_BSS_INVALID_IDX; 906 wcn36xx_smd_config_bss(wcn, vif, NULL, 907 vif->addr, false); 908 skb = ieee80211_beacon_get_tim(hw, vif, &tim_off, 909 &tim_len); 910 if (!skb) { 911 wcn36xx_err("failed to alloc beacon skb\n"); 912 goto out; 913 } 914 wcn36xx_smd_send_beacon(wcn, vif, skb, tim_off, 0); 915 dev_kfree_skb(skb); 916 917 if (vif->type == NL80211_IFTYPE_ADHOC || 918 vif->type == NL80211_IFTYPE_MESH_POINT) 919 link_state = WCN36XX_HAL_LINK_IBSS_STATE; 920 else 921 link_state = WCN36XX_HAL_LINK_AP_STATE; 922 923 wcn36xx_smd_set_link_st(wcn, vif->addr, vif->addr, 924 link_state); 925 } else { 926 wcn36xx_smd_delete_bss(wcn, vif); 927 wcn36xx_smd_set_link_st(wcn, vif->addr, vif->addr, 928 WCN36XX_HAL_LINK_IDLE_STATE); 929 } 930 } 931 out: 932 933 mutex_unlock(&wcn->conf_mutex); 934 935 return; 936 } 937 938 /* this is required when using IEEE80211_HW_HAS_RATE_CONTROL */ 939 static int wcn36xx_set_rts_threshold(struct ieee80211_hw *hw, u32 value) 940 { 941 struct wcn36xx *wcn = hw->priv; 942 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac set RTS threshold %d\n", value); 943 944 mutex_lock(&wcn->conf_mutex); 945 wcn36xx_smd_update_cfg(wcn, WCN36XX_HAL_CFG_RTS_THRESHOLD, value); 946 mutex_unlock(&wcn->conf_mutex); 947 948 return 0; 949 } 950 951 static void wcn36xx_remove_interface(struct ieee80211_hw *hw, 952 struct ieee80211_vif *vif) 953 { 954 struct wcn36xx *wcn = hw->priv; 955 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif); 956 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac remove interface vif %p\n", vif); 957 958 mutex_lock(&wcn->conf_mutex); 959 960 list_del(&vif_priv->list); 961 wcn36xx_smd_delete_sta_self(wcn, vif->addr); 962 963 mutex_unlock(&wcn->conf_mutex); 964 } 965 966 static int wcn36xx_add_interface(struct ieee80211_hw *hw, 967 struct ieee80211_vif *vif) 968 { 969 struct wcn36xx *wcn = hw->priv; 970 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif); 971 972 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac add interface vif %p type %d\n", 973 vif, vif->type); 974 975 if (!(NL80211_IFTYPE_STATION == vif->type || 976 NL80211_IFTYPE_AP == vif->type || 977 NL80211_IFTYPE_ADHOC == vif->type || 978 NL80211_IFTYPE_MESH_POINT == vif->type)) { 979 wcn36xx_warn("Unsupported interface type requested: %d\n", 980 vif->type); 981 return -EOPNOTSUPP; 982 } 983 984 mutex_lock(&wcn->conf_mutex); 985 986 vif_priv->bss_index = WCN36XX_HAL_BSS_INVALID_IDX; 987 list_add(&vif_priv->list, &wcn->vif_list); 988 wcn36xx_smd_add_sta_self(wcn, vif); 989 990 mutex_unlock(&wcn->conf_mutex); 991 992 return 0; 993 } 994 995 static int wcn36xx_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 996 struct ieee80211_sta *sta) 997 { 998 struct wcn36xx *wcn = hw->priv; 999 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif); 1000 struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(sta); 1001 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac sta add vif %p sta %pM\n", 1002 vif, sta->addr); 1003 1004 mutex_lock(&wcn->conf_mutex); 1005 1006 spin_lock_init(&sta_priv->ampdu_lock); 1007 sta_priv->vif = vif_priv; 1008 /* 1009 * For STA mode HW will be configured on BSS_CHANGED_ASSOC because 1010 * at this stage AID is not available yet. 1011 */ 1012 if (NL80211_IFTYPE_STATION != vif->type) { 1013 wcn36xx_update_allowed_rates(sta, WCN36XX_BAND(wcn)); 1014 sta_priv->aid = sta->aid; 1015 wcn36xx_smd_config_sta(wcn, vif, sta); 1016 } 1017 1018 mutex_unlock(&wcn->conf_mutex); 1019 1020 return 0; 1021 } 1022 1023 static int wcn36xx_sta_remove(struct ieee80211_hw *hw, 1024 struct ieee80211_vif *vif, 1025 struct ieee80211_sta *sta) 1026 { 1027 struct wcn36xx *wcn = hw->priv; 1028 struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(sta); 1029 1030 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac sta remove vif %p sta %pM index %d\n", 1031 vif, sta->addr, sta_priv->sta_index); 1032 1033 mutex_lock(&wcn->conf_mutex); 1034 1035 wcn36xx_smd_delete_sta(wcn, sta_priv->sta_index); 1036 sta_priv->vif = NULL; 1037 1038 mutex_unlock(&wcn->conf_mutex); 1039 1040 return 0; 1041 } 1042 1043 #ifdef CONFIG_PM 1044 1045 static int wcn36xx_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wow) 1046 { 1047 struct wcn36xx *wcn = hw->priv; 1048 1049 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac suspend\n"); 1050 1051 flush_workqueue(wcn->hal_ind_wq); 1052 wcn36xx_smd_set_power_params(wcn, true); 1053 return 0; 1054 } 1055 1056 static int wcn36xx_resume(struct ieee80211_hw *hw) 1057 { 1058 struct wcn36xx *wcn = hw->priv; 1059 1060 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac resume\n"); 1061 1062 flush_workqueue(wcn->hal_ind_wq); 1063 wcn36xx_smd_set_power_params(wcn, false); 1064 return 0; 1065 } 1066 1067 #endif 1068 1069 static int wcn36xx_ampdu_action(struct ieee80211_hw *hw, 1070 struct ieee80211_vif *vif, 1071 struct ieee80211_ampdu_params *params) 1072 { 1073 struct wcn36xx *wcn = hw->priv; 1074 struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(params->sta); 1075 struct ieee80211_sta *sta = params->sta; 1076 enum ieee80211_ampdu_mlme_action action = params->action; 1077 u16 tid = params->tid; 1078 u16 *ssn = ¶ms->ssn; 1079 1080 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac ampdu action action %d tid %d\n", 1081 action, tid); 1082 1083 mutex_lock(&wcn->conf_mutex); 1084 1085 switch (action) { 1086 case IEEE80211_AMPDU_RX_START: 1087 sta_priv->tid = tid; 1088 wcn36xx_smd_add_ba_session(wcn, sta, tid, ssn, 0, 1089 get_sta_index(vif, sta_priv)); 1090 wcn36xx_smd_add_ba(wcn); 1091 wcn36xx_smd_trigger_ba(wcn, get_sta_index(vif, sta_priv)); 1092 break; 1093 case IEEE80211_AMPDU_RX_STOP: 1094 wcn36xx_smd_del_ba(wcn, tid, get_sta_index(vif, sta_priv)); 1095 break; 1096 case IEEE80211_AMPDU_TX_START: 1097 spin_lock_bh(&sta_priv->ampdu_lock); 1098 sta_priv->ampdu_state[tid] = WCN36XX_AMPDU_START; 1099 spin_unlock_bh(&sta_priv->ampdu_lock); 1100 1101 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid); 1102 break; 1103 case IEEE80211_AMPDU_TX_OPERATIONAL: 1104 spin_lock_bh(&sta_priv->ampdu_lock); 1105 sta_priv->ampdu_state[tid] = WCN36XX_AMPDU_OPERATIONAL; 1106 spin_unlock_bh(&sta_priv->ampdu_lock); 1107 1108 wcn36xx_smd_add_ba_session(wcn, sta, tid, ssn, 1, 1109 get_sta_index(vif, sta_priv)); 1110 break; 1111 case IEEE80211_AMPDU_TX_STOP_FLUSH: 1112 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 1113 case IEEE80211_AMPDU_TX_STOP_CONT: 1114 spin_lock_bh(&sta_priv->ampdu_lock); 1115 sta_priv->ampdu_state[tid] = WCN36XX_AMPDU_NONE; 1116 spin_unlock_bh(&sta_priv->ampdu_lock); 1117 1118 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 1119 break; 1120 default: 1121 wcn36xx_err("Unknown AMPDU action\n"); 1122 } 1123 1124 mutex_unlock(&wcn->conf_mutex); 1125 1126 return 0; 1127 } 1128 1129 static const struct ieee80211_ops wcn36xx_ops = { 1130 .start = wcn36xx_start, 1131 .stop = wcn36xx_stop, 1132 .add_interface = wcn36xx_add_interface, 1133 .remove_interface = wcn36xx_remove_interface, 1134 #ifdef CONFIG_PM 1135 .suspend = wcn36xx_suspend, 1136 .resume = wcn36xx_resume, 1137 #endif 1138 .config = wcn36xx_config, 1139 .prepare_multicast = wcn36xx_prepare_multicast, 1140 .configure_filter = wcn36xx_configure_filter, 1141 .tx = wcn36xx_tx, 1142 .set_key = wcn36xx_set_key, 1143 .hw_scan = wcn36xx_hw_scan, 1144 .cancel_hw_scan = wcn36xx_cancel_hw_scan, 1145 .bss_info_changed = wcn36xx_bss_info_changed, 1146 .set_rts_threshold = wcn36xx_set_rts_threshold, 1147 .sta_add = wcn36xx_sta_add, 1148 .sta_remove = wcn36xx_sta_remove, 1149 .ampdu_action = wcn36xx_ampdu_action, 1150 1151 CFG80211_TESTMODE_CMD(wcn36xx_tm_cmd) 1152 }; 1153 1154 static int wcn36xx_init_ieee80211(struct wcn36xx *wcn) 1155 { 1156 int ret = 0; 1157 1158 static const u32 cipher_suites[] = { 1159 WLAN_CIPHER_SUITE_WEP40, 1160 WLAN_CIPHER_SUITE_WEP104, 1161 WLAN_CIPHER_SUITE_TKIP, 1162 WLAN_CIPHER_SUITE_CCMP, 1163 }; 1164 1165 ieee80211_hw_set(wcn->hw, TIMING_BEACON_ONLY); 1166 ieee80211_hw_set(wcn->hw, AMPDU_AGGREGATION); 1167 ieee80211_hw_set(wcn->hw, CONNECTION_MONITOR); 1168 ieee80211_hw_set(wcn->hw, SUPPORTS_PS); 1169 ieee80211_hw_set(wcn->hw, SIGNAL_DBM); 1170 ieee80211_hw_set(wcn->hw, HAS_RATE_CONTROL); 1171 ieee80211_hw_set(wcn->hw, SINGLE_SCAN_ON_ALL_BANDS); 1172 1173 wcn->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 1174 BIT(NL80211_IFTYPE_AP) | 1175 BIT(NL80211_IFTYPE_ADHOC) | 1176 BIT(NL80211_IFTYPE_MESH_POINT); 1177 1178 wcn->hw->wiphy->bands[NL80211_BAND_2GHZ] = &wcn_band_2ghz; 1179 if (wcn->rf_id != RF_IRIS_WCN3620) 1180 wcn->hw->wiphy->bands[NL80211_BAND_5GHZ] = &wcn_band_5ghz; 1181 1182 wcn->hw->wiphy->max_scan_ssids = WCN36XX_MAX_SCAN_SSIDS; 1183 wcn->hw->wiphy->max_scan_ie_len = WCN36XX_MAX_SCAN_IE_LEN; 1184 1185 wcn->hw->wiphy->cipher_suites = cipher_suites; 1186 wcn->hw->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites); 1187 1188 #ifdef CONFIG_PM 1189 wcn->hw->wiphy->wowlan = &wowlan_support; 1190 #endif 1191 1192 wcn->hw->max_listen_interval = 200; 1193 1194 wcn->hw->queues = 4; 1195 1196 SET_IEEE80211_DEV(wcn->hw, wcn->dev); 1197 1198 wcn->hw->sta_data_size = sizeof(struct wcn36xx_sta); 1199 wcn->hw->vif_data_size = sizeof(struct wcn36xx_vif); 1200 1201 wiphy_ext_feature_set(wcn->hw->wiphy, 1202 NL80211_EXT_FEATURE_CQM_RSSI_LIST); 1203 1204 return ret; 1205 } 1206 1207 static int wcn36xx_platform_get_resources(struct wcn36xx *wcn, 1208 struct platform_device *pdev) 1209 { 1210 struct device_node *mmio_node; 1211 struct device_node *iris_node; 1212 struct resource *res; 1213 int index; 1214 int ret; 1215 1216 /* Set TX IRQ */ 1217 res = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "tx"); 1218 if (!res) { 1219 wcn36xx_err("failed to get tx_irq\n"); 1220 return -ENOENT; 1221 } 1222 wcn->tx_irq = res->start; 1223 1224 /* Set RX IRQ */ 1225 res = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "rx"); 1226 if (!res) { 1227 wcn36xx_err("failed to get rx_irq\n"); 1228 return -ENOENT; 1229 } 1230 wcn->rx_irq = res->start; 1231 1232 /* Acquire SMSM tx enable handle */ 1233 wcn->tx_enable_state = qcom_smem_state_get(&pdev->dev, 1234 "tx-enable", &wcn->tx_enable_state_bit); 1235 if (IS_ERR(wcn->tx_enable_state)) { 1236 wcn36xx_err("failed to get tx-enable state\n"); 1237 return PTR_ERR(wcn->tx_enable_state); 1238 } 1239 1240 /* Acquire SMSM tx rings empty handle */ 1241 wcn->tx_rings_empty_state = qcom_smem_state_get(&pdev->dev, 1242 "tx-rings-empty", &wcn->tx_rings_empty_state_bit); 1243 if (IS_ERR(wcn->tx_rings_empty_state)) { 1244 wcn36xx_err("failed to get tx-rings-empty state\n"); 1245 return PTR_ERR(wcn->tx_rings_empty_state); 1246 } 1247 1248 mmio_node = of_parse_phandle(pdev->dev.parent->of_node, "qcom,mmio", 0); 1249 if (!mmio_node) { 1250 wcn36xx_err("failed to acquire qcom,mmio reference\n"); 1251 return -EINVAL; 1252 } 1253 1254 wcn->is_pronto = !!of_device_is_compatible(mmio_node, "qcom,pronto"); 1255 1256 /* Map the CCU memory */ 1257 index = of_property_match_string(mmio_node, "reg-names", "ccu"); 1258 wcn->ccu_base = of_iomap(mmio_node, index); 1259 if (!wcn->ccu_base) { 1260 wcn36xx_err("failed to map ccu memory\n"); 1261 ret = -ENOMEM; 1262 goto put_mmio_node; 1263 } 1264 1265 /* Map the DXE memory */ 1266 index = of_property_match_string(mmio_node, "reg-names", "dxe"); 1267 wcn->dxe_base = of_iomap(mmio_node, index); 1268 if (!wcn->dxe_base) { 1269 wcn36xx_err("failed to map dxe memory\n"); 1270 ret = -ENOMEM; 1271 goto unmap_ccu; 1272 } 1273 1274 /* External RF module */ 1275 iris_node = of_get_child_by_name(mmio_node, "iris"); 1276 if (iris_node) { 1277 if (of_device_is_compatible(iris_node, "qcom,wcn3620")) 1278 wcn->rf_id = RF_IRIS_WCN3620; 1279 of_node_put(iris_node); 1280 } 1281 1282 of_node_put(mmio_node); 1283 return 0; 1284 1285 unmap_ccu: 1286 iounmap(wcn->ccu_base); 1287 put_mmio_node: 1288 of_node_put(mmio_node); 1289 return ret; 1290 } 1291 1292 static int wcn36xx_probe(struct platform_device *pdev) 1293 { 1294 struct ieee80211_hw *hw; 1295 struct wcn36xx *wcn; 1296 void *wcnss; 1297 int ret; 1298 const u8 *addr; 1299 1300 wcn36xx_dbg(WCN36XX_DBG_MAC, "platform probe\n"); 1301 1302 wcnss = dev_get_drvdata(pdev->dev.parent); 1303 1304 hw = ieee80211_alloc_hw(sizeof(struct wcn36xx), &wcn36xx_ops); 1305 if (!hw) { 1306 wcn36xx_err("failed to alloc hw\n"); 1307 ret = -ENOMEM; 1308 goto out_err; 1309 } 1310 platform_set_drvdata(pdev, hw); 1311 wcn = hw->priv; 1312 wcn->hw = hw; 1313 wcn->dev = &pdev->dev; 1314 wcn->first_boot = true; 1315 mutex_init(&wcn->conf_mutex); 1316 mutex_init(&wcn->hal_mutex); 1317 mutex_init(&wcn->scan_lock); 1318 1319 ret = dma_set_mask_and_coherent(wcn->dev, DMA_BIT_MASK(32)); 1320 if (ret < 0) { 1321 wcn36xx_err("failed to set DMA mask: %d\n", ret); 1322 goto out_wq; 1323 } 1324 1325 INIT_WORK(&wcn->scan_work, wcn36xx_hw_scan_worker); 1326 1327 wcn->smd_channel = qcom_wcnss_open_channel(wcnss, "WLAN_CTRL", wcn36xx_smd_rsp_process, hw); 1328 if (IS_ERR(wcn->smd_channel)) { 1329 wcn36xx_err("failed to open WLAN_CTRL channel\n"); 1330 ret = PTR_ERR(wcn->smd_channel); 1331 goto out_wq; 1332 } 1333 1334 addr = of_get_property(pdev->dev.of_node, "local-mac-address", &ret); 1335 if (addr && ret != ETH_ALEN) { 1336 wcn36xx_err("invalid local-mac-address\n"); 1337 ret = -EINVAL; 1338 goto out_wq; 1339 } else if (addr) { 1340 wcn36xx_info("mac address: %pM\n", addr); 1341 SET_IEEE80211_PERM_ADDR(wcn->hw, addr); 1342 } 1343 1344 ret = wcn36xx_platform_get_resources(wcn, pdev); 1345 if (ret) 1346 goto out_wq; 1347 1348 wcn36xx_init_ieee80211(wcn); 1349 ret = ieee80211_register_hw(wcn->hw); 1350 if (ret) 1351 goto out_unmap; 1352 1353 return 0; 1354 1355 out_unmap: 1356 iounmap(wcn->ccu_base); 1357 iounmap(wcn->dxe_base); 1358 out_wq: 1359 ieee80211_free_hw(hw); 1360 out_err: 1361 return ret; 1362 } 1363 1364 static int wcn36xx_remove(struct platform_device *pdev) 1365 { 1366 struct ieee80211_hw *hw = platform_get_drvdata(pdev); 1367 struct wcn36xx *wcn = hw->priv; 1368 wcn36xx_dbg(WCN36XX_DBG_MAC, "platform remove\n"); 1369 1370 release_firmware(wcn->nv); 1371 1372 ieee80211_unregister_hw(hw); 1373 1374 qcom_smem_state_put(wcn->tx_enable_state); 1375 qcom_smem_state_put(wcn->tx_rings_empty_state); 1376 1377 rpmsg_destroy_ept(wcn->smd_channel); 1378 1379 iounmap(wcn->dxe_base); 1380 iounmap(wcn->ccu_base); 1381 1382 mutex_destroy(&wcn->hal_mutex); 1383 ieee80211_free_hw(hw); 1384 1385 return 0; 1386 } 1387 1388 static const struct of_device_id wcn36xx_of_match[] = { 1389 { .compatible = "qcom,wcnss-wlan" }, 1390 {} 1391 }; 1392 MODULE_DEVICE_TABLE(of, wcn36xx_of_match); 1393 1394 static struct platform_driver wcn36xx_driver = { 1395 .probe = wcn36xx_probe, 1396 .remove = wcn36xx_remove, 1397 .driver = { 1398 .name = "wcn36xx", 1399 .of_match_table = wcn36xx_of_match, 1400 }, 1401 }; 1402 1403 module_platform_driver(wcn36xx_driver); 1404 1405 MODULE_LICENSE("Dual BSD/GPL"); 1406 MODULE_AUTHOR("Eugene Krasnikov k.eugene.e@gmail.com"); 1407 MODULE_FIRMWARE(WLAN_NV_FILE); 1408