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 = sta ? wcn36xx_sta_to_priv(sta) : NULL; 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_WEP104; 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); 570 571 if ((WLAN_CIPHER_SUITE_WEP40 == key_conf->cipher) || 572 (WLAN_CIPHER_SUITE_WEP104 == key_conf->cipher)) { 573 list_for_each_entry(sta_priv, 574 &vif_priv->sta_list, list) { 575 sta_priv->is_data_encrypted = true; 576 wcn36xx_smd_set_stakey(wcn, 577 vif_priv->encrypt_type, 578 key_conf->keyidx, 579 key_conf->keylen, 580 key, 581 get_sta_index(vif, sta_priv)); 582 } 583 } 584 } 585 break; 586 case DISABLE_KEY: 587 if (!(IEEE80211_KEY_FLAG_PAIRWISE & key_conf->flags)) { 588 if (vif_priv->bss_index != WCN36XX_HAL_BSS_INVALID_IDX) 589 wcn36xx_smd_remove_bsskey(wcn, 590 vif_priv->encrypt_type, 591 vif_priv->bss_index, 592 key_conf->keyidx); 593 594 vif_priv->encrypt_type = WCN36XX_HAL_ED_NONE; 595 } else { 596 sta_priv->is_data_encrypted = false; 597 /* do not remove key if disassociated */ 598 if (sta_priv->aid) 599 wcn36xx_smd_remove_stakey(wcn, 600 vif_priv->encrypt_type, 601 key_conf->keyidx, 602 get_sta_index(vif, sta_priv)); 603 } 604 break; 605 default: 606 wcn36xx_err("Unsupported key cmd 0x%x\n", cmd); 607 ret = -EOPNOTSUPP; 608 goto out; 609 } 610 611 out: 612 mutex_unlock(&wcn->conf_mutex); 613 614 return ret; 615 } 616 617 static void wcn36xx_hw_scan_worker(struct work_struct *work) 618 { 619 struct wcn36xx *wcn = container_of(work, struct wcn36xx, scan_work); 620 struct cfg80211_scan_request *req = wcn->scan_req; 621 u8 channels[WCN36XX_HAL_PNO_MAX_NETW_CHANNELS_EX]; 622 struct cfg80211_scan_info scan_info = {}; 623 bool aborted = false; 624 int i; 625 626 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac80211 scan %d channels worker\n", req->n_channels); 627 628 for (i = 0; i < req->n_channels; i++) 629 channels[i] = req->channels[i]->hw_value; 630 631 wcn36xx_smd_update_scan_params(wcn, channels, req->n_channels); 632 633 wcn36xx_smd_init_scan(wcn, HAL_SYS_MODE_SCAN); 634 for (i = 0; i < req->n_channels; i++) { 635 mutex_lock(&wcn->scan_lock); 636 aborted = wcn->scan_aborted; 637 mutex_unlock(&wcn->scan_lock); 638 639 if (aborted) 640 break; 641 642 wcn->scan_freq = req->channels[i]->center_freq; 643 wcn->scan_band = req->channels[i]->band; 644 645 wcn36xx_smd_start_scan(wcn, req->channels[i]->hw_value); 646 msleep(30); 647 wcn36xx_smd_end_scan(wcn, req->channels[i]->hw_value); 648 649 wcn->scan_freq = 0; 650 } 651 wcn36xx_smd_finish_scan(wcn, HAL_SYS_MODE_SCAN); 652 653 scan_info.aborted = aborted; 654 ieee80211_scan_completed(wcn->hw, &scan_info); 655 656 mutex_lock(&wcn->scan_lock); 657 wcn->scan_req = NULL; 658 mutex_unlock(&wcn->scan_lock); 659 } 660 661 static int wcn36xx_hw_scan(struct ieee80211_hw *hw, 662 struct ieee80211_vif *vif, 663 struct ieee80211_scan_request *hw_req) 664 { 665 struct wcn36xx *wcn = hw->priv; 666 mutex_lock(&wcn->scan_lock); 667 if (wcn->scan_req) { 668 mutex_unlock(&wcn->scan_lock); 669 return -EBUSY; 670 } 671 672 wcn->scan_aborted = false; 673 wcn->scan_req = &hw_req->req; 674 675 mutex_unlock(&wcn->scan_lock); 676 677 if (!get_feat_caps(wcn->fw_feat_caps, SCAN_OFFLOAD)) { 678 /* legacy manual/sw scan */ 679 schedule_work(&wcn->scan_work); 680 return 0; 681 } 682 683 return wcn36xx_smd_start_hw_scan(wcn, vif, &hw_req->req); 684 } 685 686 static void wcn36xx_cancel_hw_scan(struct ieee80211_hw *hw, 687 struct ieee80211_vif *vif) 688 { 689 struct wcn36xx *wcn = hw->priv; 690 691 mutex_lock(&wcn->scan_lock); 692 wcn->scan_aborted = true; 693 mutex_unlock(&wcn->scan_lock); 694 695 if (get_feat_caps(wcn->fw_feat_caps, SCAN_OFFLOAD)) { 696 /* ieee80211_scan_completed will be called on FW scan 697 * indication */ 698 wcn36xx_smd_stop_hw_scan(wcn); 699 } else { 700 struct cfg80211_scan_info scan_info = { 701 .aborted = true, 702 }; 703 704 cancel_work_sync(&wcn->scan_work); 705 ieee80211_scan_completed(wcn->hw, &scan_info); 706 } 707 } 708 709 static void wcn36xx_update_allowed_rates(struct ieee80211_sta *sta, 710 enum nl80211_band band) 711 { 712 int i, size; 713 u16 *rates_table; 714 struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(sta); 715 u32 rates = sta->supp_rates[band]; 716 717 memset(&sta_priv->supported_rates, 0, 718 sizeof(sta_priv->supported_rates)); 719 sta_priv->supported_rates.op_rate_mode = STA_11n; 720 721 size = ARRAY_SIZE(sta_priv->supported_rates.dsss_rates); 722 rates_table = sta_priv->supported_rates.dsss_rates; 723 if (band == NL80211_BAND_2GHZ) { 724 for (i = 0; i < size; i++) { 725 if (rates & 0x01) { 726 rates_table[i] = wcn_2ghz_rates[i].hw_value; 727 rates = rates >> 1; 728 } 729 } 730 } 731 732 size = ARRAY_SIZE(sta_priv->supported_rates.ofdm_rates); 733 rates_table = sta_priv->supported_rates.ofdm_rates; 734 for (i = 0; i < size; i++) { 735 if (rates & 0x01) { 736 rates_table[i] = wcn_5ghz_rates[i].hw_value; 737 rates = rates >> 1; 738 } 739 } 740 741 if (sta->ht_cap.ht_supported) { 742 BUILD_BUG_ON(sizeof(sta->ht_cap.mcs.rx_mask) > 743 sizeof(sta_priv->supported_rates.supported_mcs_set)); 744 memcpy(sta_priv->supported_rates.supported_mcs_set, 745 sta->ht_cap.mcs.rx_mask, 746 sizeof(sta->ht_cap.mcs.rx_mask)); 747 } 748 } 749 void wcn36xx_set_default_rates(struct wcn36xx_hal_supported_rates *rates) 750 { 751 u16 ofdm_rates[WCN36XX_HAL_NUM_OFDM_RATES] = { 752 HW_RATE_INDEX_6MBPS, 753 HW_RATE_INDEX_9MBPS, 754 HW_RATE_INDEX_12MBPS, 755 HW_RATE_INDEX_18MBPS, 756 HW_RATE_INDEX_24MBPS, 757 HW_RATE_INDEX_36MBPS, 758 HW_RATE_INDEX_48MBPS, 759 HW_RATE_INDEX_54MBPS 760 }; 761 u16 dsss_rates[WCN36XX_HAL_NUM_DSSS_RATES] = { 762 HW_RATE_INDEX_1MBPS, 763 HW_RATE_INDEX_2MBPS, 764 HW_RATE_INDEX_5_5MBPS, 765 HW_RATE_INDEX_11MBPS 766 }; 767 768 rates->op_rate_mode = STA_11n; 769 memcpy(rates->dsss_rates, dsss_rates, 770 sizeof(*dsss_rates) * WCN36XX_HAL_NUM_DSSS_RATES); 771 memcpy(rates->ofdm_rates, ofdm_rates, 772 sizeof(*ofdm_rates) * WCN36XX_HAL_NUM_OFDM_RATES); 773 rates->supported_mcs_set[0] = 0xFF; 774 } 775 static void wcn36xx_bss_info_changed(struct ieee80211_hw *hw, 776 struct ieee80211_vif *vif, 777 struct ieee80211_bss_conf *bss_conf, 778 u32 changed) 779 { 780 struct wcn36xx *wcn = hw->priv; 781 struct sk_buff *skb = NULL; 782 u16 tim_off, tim_len; 783 enum wcn36xx_hal_link_state link_state; 784 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif); 785 786 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss info changed vif %p changed 0x%08x\n", 787 vif, changed); 788 789 mutex_lock(&wcn->conf_mutex); 790 791 if (changed & BSS_CHANGED_BEACON_INFO) { 792 wcn36xx_dbg(WCN36XX_DBG_MAC, 793 "mac bss changed dtim period %d\n", 794 bss_conf->dtim_period); 795 796 vif_priv->dtim_period = bss_conf->dtim_period; 797 } 798 799 if (changed & BSS_CHANGED_BSSID) { 800 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss changed_bssid %pM\n", 801 bss_conf->bssid); 802 803 if (!is_zero_ether_addr(bss_conf->bssid)) { 804 vif_priv->is_joining = true; 805 vif_priv->bss_index = WCN36XX_HAL_BSS_INVALID_IDX; 806 wcn36xx_smd_set_link_st(wcn, bss_conf->bssid, vif->addr, 807 WCN36XX_HAL_LINK_PREASSOC_STATE); 808 wcn36xx_smd_join(wcn, bss_conf->bssid, 809 vif->addr, WCN36XX_HW_CHANNEL(wcn)); 810 wcn36xx_smd_config_bss(wcn, vif, NULL, 811 bss_conf->bssid, false); 812 } else { 813 vif_priv->is_joining = false; 814 wcn36xx_smd_delete_bss(wcn, vif); 815 wcn36xx_smd_set_link_st(wcn, bss_conf->bssid, vif->addr, 816 WCN36XX_HAL_LINK_IDLE_STATE); 817 vif_priv->encrypt_type = WCN36XX_HAL_ED_NONE; 818 } 819 } 820 821 if (changed & BSS_CHANGED_SSID) { 822 wcn36xx_dbg(WCN36XX_DBG_MAC, 823 "mac bss changed ssid\n"); 824 wcn36xx_dbg_dump(WCN36XX_DBG_MAC, "ssid ", 825 bss_conf->ssid, bss_conf->ssid_len); 826 827 vif_priv->ssid.length = bss_conf->ssid_len; 828 memcpy(&vif_priv->ssid.ssid, 829 bss_conf->ssid, 830 bss_conf->ssid_len); 831 } 832 833 if (changed & BSS_CHANGED_ASSOC) { 834 vif_priv->is_joining = false; 835 if (bss_conf->assoc) { 836 struct ieee80211_sta *sta; 837 struct wcn36xx_sta *sta_priv; 838 839 wcn36xx_dbg(WCN36XX_DBG_MAC, 840 "mac assoc bss %pM vif %pM AID=%d\n", 841 bss_conf->bssid, 842 vif->addr, 843 bss_conf->aid); 844 845 vif_priv->sta_assoc = true; 846 847 /* 848 * Holding conf_mutex ensures mutal exclusion with 849 * wcn36xx_sta_remove() and as such ensures that sta 850 * won't be freed while we're operating on it. As such 851 * we do not need to hold the rcu_read_lock(). 852 */ 853 sta = ieee80211_find_sta(vif, bss_conf->bssid); 854 if (!sta) { 855 wcn36xx_err("sta %pM is not found\n", 856 bss_conf->bssid); 857 goto out; 858 } 859 sta_priv = wcn36xx_sta_to_priv(sta); 860 861 wcn36xx_update_allowed_rates(sta, WCN36XX_BAND(wcn)); 862 863 wcn36xx_smd_set_link_st(wcn, bss_conf->bssid, 864 vif->addr, 865 WCN36XX_HAL_LINK_POSTASSOC_STATE); 866 wcn36xx_smd_config_bss(wcn, vif, sta, 867 bss_conf->bssid, 868 true); 869 sta_priv->aid = bss_conf->aid; 870 /* 871 * config_sta must be called from because this is the 872 * place where AID is available. 873 */ 874 wcn36xx_smd_config_sta(wcn, vif, sta); 875 } else { 876 wcn36xx_dbg(WCN36XX_DBG_MAC, 877 "disassociated bss %pM vif %pM AID=%d\n", 878 bss_conf->bssid, 879 vif->addr, 880 bss_conf->aid); 881 vif_priv->sta_assoc = false; 882 wcn36xx_smd_set_link_st(wcn, 883 bss_conf->bssid, 884 vif->addr, 885 WCN36XX_HAL_LINK_IDLE_STATE); 886 } 887 } 888 889 if (changed & BSS_CHANGED_AP_PROBE_RESP) { 890 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss changed ap probe resp\n"); 891 skb = ieee80211_proberesp_get(hw, vif); 892 if (!skb) { 893 wcn36xx_err("failed to alloc probereq skb\n"); 894 goto out; 895 } 896 897 wcn36xx_smd_update_proberesp_tmpl(wcn, vif, skb); 898 dev_kfree_skb(skb); 899 } 900 901 if (changed & BSS_CHANGED_BEACON_ENABLED || 902 changed & BSS_CHANGED_BEACON) { 903 wcn36xx_dbg(WCN36XX_DBG_MAC, 904 "mac bss changed beacon enabled %d\n", 905 bss_conf->enable_beacon); 906 907 if (bss_conf->enable_beacon) { 908 vif_priv->dtim_period = bss_conf->dtim_period; 909 vif_priv->bss_index = WCN36XX_HAL_BSS_INVALID_IDX; 910 wcn36xx_smd_config_bss(wcn, vif, NULL, 911 vif->addr, false); 912 skb = ieee80211_beacon_get_tim(hw, vif, &tim_off, 913 &tim_len); 914 if (!skb) { 915 wcn36xx_err("failed to alloc beacon skb\n"); 916 goto out; 917 } 918 wcn36xx_smd_send_beacon(wcn, vif, skb, tim_off, 0); 919 dev_kfree_skb(skb); 920 921 if (vif->type == NL80211_IFTYPE_ADHOC || 922 vif->type == NL80211_IFTYPE_MESH_POINT) 923 link_state = WCN36XX_HAL_LINK_IBSS_STATE; 924 else 925 link_state = WCN36XX_HAL_LINK_AP_STATE; 926 927 wcn36xx_smd_set_link_st(wcn, vif->addr, vif->addr, 928 link_state); 929 } else { 930 wcn36xx_smd_delete_bss(wcn, vif); 931 wcn36xx_smd_set_link_st(wcn, vif->addr, vif->addr, 932 WCN36XX_HAL_LINK_IDLE_STATE); 933 } 934 } 935 out: 936 937 mutex_unlock(&wcn->conf_mutex); 938 } 939 940 /* this is required when using IEEE80211_HW_HAS_RATE_CONTROL */ 941 static int wcn36xx_set_rts_threshold(struct ieee80211_hw *hw, u32 value) 942 { 943 struct wcn36xx *wcn = hw->priv; 944 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac set RTS threshold %d\n", value); 945 946 mutex_lock(&wcn->conf_mutex); 947 wcn36xx_smd_update_cfg(wcn, WCN36XX_HAL_CFG_RTS_THRESHOLD, value); 948 mutex_unlock(&wcn->conf_mutex); 949 950 return 0; 951 } 952 953 static void wcn36xx_remove_interface(struct ieee80211_hw *hw, 954 struct ieee80211_vif *vif) 955 { 956 struct wcn36xx *wcn = hw->priv; 957 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif); 958 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac remove interface vif %p\n", vif); 959 960 mutex_lock(&wcn->conf_mutex); 961 962 list_del(&vif_priv->list); 963 wcn36xx_smd_delete_sta_self(wcn, vif->addr); 964 965 mutex_unlock(&wcn->conf_mutex); 966 } 967 968 static int wcn36xx_add_interface(struct ieee80211_hw *hw, 969 struct ieee80211_vif *vif) 970 { 971 struct wcn36xx *wcn = hw->priv; 972 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif); 973 974 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac add interface vif %p type %d\n", 975 vif, vif->type); 976 977 if (!(NL80211_IFTYPE_STATION == vif->type || 978 NL80211_IFTYPE_AP == vif->type || 979 NL80211_IFTYPE_ADHOC == vif->type || 980 NL80211_IFTYPE_MESH_POINT == vif->type)) { 981 wcn36xx_warn("Unsupported interface type requested: %d\n", 982 vif->type); 983 return -EOPNOTSUPP; 984 } 985 986 mutex_lock(&wcn->conf_mutex); 987 988 vif_priv->bss_index = WCN36XX_HAL_BSS_INVALID_IDX; 989 INIT_LIST_HEAD(&vif_priv->sta_list); 990 list_add(&vif_priv->list, &wcn->vif_list); 991 wcn36xx_smd_add_sta_self(wcn, vif); 992 993 mutex_unlock(&wcn->conf_mutex); 994 995 return 0; 996 } 997 998 static int wcn36xx_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 999 struct ieee80211_sta *sta) 1000 { 1001 struct wcn36xx *wcn = hw->priv; 1002 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif); 1003 struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(sta); 1004 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac sta add vif %p sta %pM\n", 1005 vif, sta->addr); 1006 1007 mutex_lock(&wcn->conf_mutex); 1008 1009 spin_lock_init(&sta_priv->ampdu_lock); 1010 sta_priv->vif = vif_priv; 1011 list_add(&sta_priv->list, &vif_priv->sta_list); 1012 1013 /* 1014 * For STA mode HW will be configured on BSS_CHANGED_ASSOC because 1015 * at this stage AID is not available yet. 1016 */ 1017 if (NL80211_IFTYPE_STATION != vif->type) { 1018 wcn36xx_update_allowed_rates(sta, WCN36XX_BAND(wcn)); 1019 sta_priv->aid = sta->aid; 1020 wcn36xx_smd_config_sta(wcn, vif, sta); 1021 } 1022 1023 mutex_unlock(&wcn->conf_mutex); 1024 1025 return 0; 1026 } 1027 1028 static int wcn36xx_sta_remove(struct ieee80211_hw *hw, 1029 struct ieee80211_vif *vif, 1030 struct ieee80211_sta *sta) 1031 { 1032 struct wcn36xx *wcn = hw->priv; 1033 struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(sta); 1034 1035 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac sta remove vif %p sta %pM index %d\n", 1036 vif, sta->addr, sta_priv->sta_index); 1037 1038 mutex_lock(&wcn->conf_mutex); 1039 1040 list_del(&sta_priv->list); 1041 wcn36xx_smd_delete_sta(wcn, sta_priv->sta_index); 1042 sta_priv->vif = NULL; 1043 1044 mutex_unlock(&wcn->conf_mutex); 1045 1046 return 0; 1047 } 1048 1049 #ifdef CONFIG_PM 1050 1051 static int wcn36xx_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wow) 1052 { 1053 struct wcn36xx *wcn = hw->priv; 1054 1055 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac suspend\n"); 1056 1057 flush_workqueue(wcn->hal_ind_wq); 1058 wcn36xx_smd_set_power_params(wcn, true); 1059 return 0; 1060 } 1061 1062 static int wcn36xx_resume(struct ieee80211_hw *hw) 1063 { 1064 struct wcn36xx *wcn = hw->priv; 1065 1066 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac resume\n"); 1067 1068 flush_workqueue(wcn->hal_ind_wq); 1069 wcn36xx_smd_set_power_params(wcn, false); 1070 return 0; 1071 } 1072 1073 #endif 1074 1075 static int wcn36xx_ampdu_action(struct ieee80211_hw *hw, 1076 struct ieee80211_vif *vif, 1077 struct ieee80211_ampdu_params *params) 1078 { 1079 struct wcn36xx *wcn = hw->priv; 1080 struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(params->sta); 1081 struct ieee80211_sta *sta = params->sta; 1082 enum ieee80211_ampdu_mlme_action action = params->action; 1083 u16 tid = params->tid; 1084 u16 *ssn = ¶ms->ssn; 1085 int ret = 0; 1086 1087 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac ampdu action action %d tid %d\n", 1088 action, tid); 1089 1090 mutex_lock(&wcn->conf_mutex); 1091 1092 switch (action) { 1093 case IEEE80211_AMPDU_RX_START: 1094 sta_priv->tid = tid; 1095 wcn36xx_smd_add_ba_session(wcn, sta, tid, ssn, 0, 1096 get_sta_index(vif, sta_priv)); 1097 wcn36xx_smd_add_ba(wcn); 1098 wcn36xx_smd_trigger_ba(wcn, get_sta_index(vif, sta_priv)); 1099 break; 1100 case IEEE80211_AMPDU_RX_STOP: 1101 wcn36xx_smd_del_ba(wcn, tid, get_sta_index(vif, sta_priv)); 1102 break; 1103 case IEEE80211_AMPDU_TX_START: 1104 spin_lock_bh(&sta_priv->ampdu_lock); 1105 sta_priv->ampdu_state[tid] = WCN36XX_AMPDU_START; 1106 spin_unlock_bh(&sta_priv->ampdu_lock); 1107 1108 ret = IEEE80211_AMPDU_TX_START_IMMEDIATE; 1109 break; 1110 case IEEE80211_AMPDU_TX_OPERATIONAL: 1111 spin_lock_bh(&sta_priv->ampdu_lock); 1112 sta_priv->ampdu_state[tid] = WCN36XX_AMPDU_OPERATIONAL; 1113 spin_unlock_bh(&sta_priv->ampdu_lock); 1114 1115 wcn36xx_smd_add_ba_session(wcn, sta, tid, ssn, 1, 1116 get_sta_index(vif, sta_priv)); 1117 break; 1118 case IEEE80211_AMPDU_TX_STOP_FLUSH: 1119 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 1120 case IEEE80211_AMPDU_TX_STOP_CONT: 1121 spin_lock_bh(&sta_priv->ampdu_lock); 1122 sta_priv->ampdu_state[tid] = WCN36XX_AMPDU_NONE; 1123 spin_unlock_bh(&sta_priv->ampdu_lock); 1124 1125 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 1126 break; 1127 default: 1128 wcn36xx_err("Unknown AMPDU action\n"); 1129 } 1130 1131 mutex_unlock(&wcn->conf_mutex); 1132 1133 return ret; 1134 } 1135 1136 static const struct ieee80211_ops wcn36xx_ops = { 1137 .start = wcn36xx_start, 1138 .stop = wcn36xx_stop, 1139 .add_interface = wcn36xx_add_interface, 1140 .remove_interface = wcn36xx_remove_interface, 1141 #ifdef CONFIG_PM 1142 .suspend = wcn36xx_suspend, 1143 .resume = wcn36xx_resume, 1144 #endif 1145 .config = wcn36xx_config, 1146 .prepare_multicast = wcn36xx_prepare_multicast, 1147 .configure_filter = wcn36xx_configure_filter, 1148 .tx = wcn36xx_tx, 1149 .set_key = wcn36xx_set_key, 1150 .hw_scan = wcn36xx_hw_scan, 1151 .cancel_hw_scan = wcn36xx_cancel_hw_scan, 1152 .bss_info_changed = wcn36xx_bss_info_changed, 1153 .set_rts_threshold = wcn36xx_set_rts_threshold, 1154 .sta_add = wcn36xx_sta_add, 1155 .sta_remove = wcn36xx_sta_remove, 1156 .ampdu_action = wcn36xx_ampdu_action, 1157 1158 CFG80211_TESTMODE_CMD(wcn36xx_tm_cmd) 1159 }; 1160 1161 static int wcn36xx_init_ieee80211(struct wcn36xx *wcn) 1162 { 1163 static const u32 cipher_suites[] = { 1164 WLAN_CIPHER_SUITE_WEP40, 1165 WLAN_CIPHER_SUITE_WEP104, 1166 WLAN_CIPHER_SUITE_TKIP, 1167 WLAN_CIPHER_SUITE_CCMP, 1168 }; 1169 1170 ieee80211_hw_set(wcn->hw, TIMING_BEACON_ONLY); 1171 ieee80211_hw_set(wcn->hw, AMPDU_AGGREGATION); 1172 ieee80211_hw_set(wcn->hw, SUPPORTS_PS); 1173 ieee80211_hw_set(wcn->hw, SIGNAL_DBM); 1174 ieee80211_hw_set(wcn->hw, HAS_RATE_CONTROL); 1175 ieee80211_hw_set(wcn->hw, SINGLE_SCAN_ON_ALL_BANDS); 1176 1177 wcn->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 1178 BIT(NL80211_IFTYPE_AP) | 1179 BIT(NL80211_IFTYPE_ADHOC) | 1180 BIT(NL80211_IFTYPE_MESH_POINT); 1181 1182 wcn->hw->wiphy->bands[NL80211_BAND_2GHZ] = &wcn_band_2ghz; 1183 if (wcn->rf_id != RF_IRIS_WCN3620) 1184 wcn->hw->wiphy->bands[NL80211_BAND_5GHZ] = &wcn_band_5ghz; 1185 1186 wcn->hw->wiphy->max_scan_ssids = WCN36XX_MAX_SCAN_SSIDS; 1187 wcn->hw->wiphy->max_scan_ie_len = WCN36XX_MAX_SCAN_IE_LEN; 1188 1189 wcn->hw->wiphy->cipher_suites = cipher_suites; 1190 wcn->hw->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites); 1191 1192 #ifdef CONFIG_PM 1193 wcn->hw->wiphy->wowlan = &wowlan_support; 1194 #endif 1195 1196 wcn->hw->max_listen_interval = 200; 1197 1198 wcn->hw->queues = 4; 1199 1200 SET_IEEE80211_DEV(wcn->hw, wcn->dev); 1201 1202 wcn->hw->sta_data_size = sizeof(struct wcn36xx_sta); 1203 wcn->hw->vif_data_size = sizeof(struct wcn36xx_vif); 1204 1205 wiphy_ext_feature_set(wcn->hw->wiphy, 1206 NL80211_EXT_FEATURE_CQM_RSSI_LIST); 1207 1208 return 0; 1209 } 1210 1211 static int wcn36xx_platform_get_resources(struct wcn36xx *wcn, 1212 struct platform_device *pdev) 1213 { 1214 struct device_node *mmio_node; 1215 struct device_node *iris_node; 1216 struct resource *res; 1217 int index; 1218 int ret; 1219 1220 /* Set TX IRQ */ 1221 res = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "tx"); 1222 if (!res) { 1223 wcn36xx_err("failed to get tx_irq\n"); 1224 return -ENOENT; 1225 } 1226 wcn->tx_irq = res->start; 1227 1228 /* Set RX IRQ */ 1229 res = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "rx"); 1230 if (!res) { 1231 wcn36xx_err("failed to get rx_irq\n"); 1232 return -ENOENT; 1233 } 1234 wcn->rx_irq = res->start; 1235 1236 /* Acquire SMSM tx enable handle */ 1237 wcn->tx_enable_state = qcom_smem_state_get(&pdev->dev, 1238 "tx-enable", &wcn->tx_enable_state_bit); 1239 if (IS_ERR(wcn->tx_enable_state)) { 1240 wcn36xx_err("failed to get tx-enable state\n"); 1241 return PTR_ERR(wcn->tx_enable_state); 1242 } 1243 1244 /* Acquire SMSM tx rings empty handle */ 1245 wcn->tx_rings_empty_state = qcom_smem_state_get(&pdev->dev, 1246 "tx-rings-empty", &wcn->tx_rings_empty_state_bit); 1247 if (IS_ERR(wcn->tx_rings_empty_state)) { 1248 wcn36xx_err("failed to get tx-rings-empty state\n"); 1249 return PTR_ERR(wcn->tx_rings_empty_state); 1250 } 1251 1252 mmio_node = of_parse_phandle(pdev->dev.parent->of_node, "qcom,mmio", 0); 1253 if (!mmio_node) { 1254 wcn36xx_err("failed to acquire qcom,mmio reference\n"); 1255 return -EINVAL; 1256 } 1257 1258 wcn->is_pronto = !!of_device_is_compatible(mmio_node, "qcom,pronto"); 1259 1260 /* Map the CCU memory */ 1261 index = of_property_match_string(mmio_node, "reg-names", "ccu"); 1262 wcn->ccu_base = of_iomap(mmio_node, index); 1263 if (!wcn->ccu_base) { 1264 wcn36xx_err("failed to map ccu memory\n"); 1265 ret = -ENOMEM; 1266 goto put_mmio_node; 1267 } 1268 1269 /* Map the DXE memory */ 1270 index = of_property_match_string(mmio_node, "reg-names", "dxe"); 1271 wcn->dxe_base = of_iomap(mmio_node, index); 1272 if (!wcn->dxe_base) { 1273 wcn36xx_err("failed to map dxe memory\n"); 1274 ret = -ENOMEM; 1275 goto unmap_ccu; 1276 } 1277 1278 /* External RF module */ 1279 iris_node = of_get_child_by_name(mmio_node, "iris"); 1280 if (iris_node) { 1281 if (of_device_is_compatible(iris_node, "qcom,wcn3620")) 1282 wcn->rf_id = RF_IRIS_WCN3620; 1283 of_node_put(iris_node); 1284 } 1285 1286 of_node_put(mmio_node); 1287 return 0; 1288 1289 unmap_ccu: 1290 iounmap(wcn->ccu_base); 1291 put_mmio_node: 1292 of_node_put(mmio_node); 1293 return ret; 1294 } 1295 1296 static int wcn36xx_probe(struct platform_device *pdev) 1297 { 1298 struct ieee80211_hw *hw; 1299 struct wcn36xx *wcn; 1300 void *wcnss; 1301 int ret; 1302 const u8 *addr; 1303 1304 wcn36xx_dbg(WCN36XX_DBG_MAC, "platform probe\n"); 1305 1306 wcnss = dev_get_drvdata(pdev->dev.parent); 1307 1308 hw = ieee80211_alloc_hw(sizeof(struct wcn36xx), &wcn36xx_ops); 1309 if (!hw) { 1310 wcn36xx_err("failed to alloc hw\n"); 1311 ret = -ENOMEM; 1312 goto out_err; 1313 } 1314 platform_set_drvdata(pdev, hw); 1315 wcn = hw->priv; 1316 wcn->hw = hw; 1317 wcn->dev = &pdev->dev; 1318 wcn->first_boot = true; 1319 mutex_init(&wcn->conf_mutex); 1320 mutex_init(&wcn->hal_mutex); 1321 mutex_init(&wcn->scan_lock); 1322 1323 ret = dma_set_mask_and_coherent(wcn->dev, DMA_BIT_MASK(32)); 1324 if (ret < 0) { 1325 wcn36xx_err("failed to set DMA mask: %d\n", ret); 1326 goto out_wq; 1327 } 1328 1329 INIT_WORK(&wcn->scan_work, wcn36xx_hw_scan_worker); 1330 1331 wcn->smd_channel = qcom_wcnss_open_channel(wcnss, "WLAN_CTRL", wcn36xx_smd_rsp_process, hw); 1332 if (IS_ERR(wcn->smd_channel)) { 1333 wcn36xx_err("failed to open WLAN_CTRL channel\n"); 1334 ret = PTR_ERR(wcn->smd_channel); 1335 goto out_wq; 1336 } 1337 1338 addr = of_get_property(pdev->dev.of_node, "local-mac-address", &ret); 1339 if (addr && ret != ETH_ALEN) { 1340 wcn36xx_err("invalid local-mac-address\n"); 1341 ret = -EINVAL; 1342 goto out_destroy_ept; 1343 } else if (addr) { 1344 wcn36xx_info("mac address: %pM\n", addr); 1345 SET_IEEE80211_PERM_ADDR(wcn->hw, addr); 1346 } 1347 1348 ret = wcn36xx_platform_get_resources(wcn, pdev); 1349 if (ret) 1350 goto out_destroy_ept; 1351 1352 wcn36xx_init_ieee80211(wcn); 1353 ret = ieee80211_register_hw(wcn->hw); 1354 if (ret) 1355 goto out_unmap; 1356 1357 return 0; 1358 1359 out_unmap: 1360 iounmap(wcn->ccu_base); 1361 iounmap(wcn->dxe_base); 1362 out_destroy_ept: 1363 rpmsg_destroy_ept(wcn->smd_channel); 1364 out_wq: 1365 ieee80211_free_hw(hw); 1366 out_err: 1367 return ret; 1368 } 1369 1370 static int wcn36xx_remove(struct platform_device *pdev) 1371 { 1372 struct ieee80211_hw *hw = platform_get_drvdata(pdev); 1373 struct wcn36xx *wcn = hw->priv; 1374 wcn36xx_dbg(WCN36XX_DBG_MAC, "platform remove\n"); 1375 1376 release_firmware(wcn->nv); 1377 1378 ieee80211_unregister_hw(hw); 1379 1380 qcom_smem_state_put(wcn->tx_enable_state); 1381 qcom_smem_state_put(wcn->tx_rings_empty_state); 1382 1383 rpmsg_destroy_ept(wcn->smd_channel); 1384 1385 iounmap(wcn->dxe_base); 1386 iounmap(wcn->ccu_base); 1387 1388 mutex_destroy(&wcn->hal_mutex); 1389 ieee80211_free_hw(hw); 1390 1391 return 0; 1392 } 1393 1394 static const struct of_device_id wcn36xx_of_match[] = { 1395 { .compatible = "qcom,wcnss-wlan" }, 1396 {} 1397 }; 1398 MODULE_DEVICE_TABLE(of, wcn36xx_of_match); 1399 1400 static struct platform_driver wcn36xx_driver = { 1401 .probe = wcn36xx_probe, 1402 .remove = wcn36xx_remove, 1403 .driver = { 1404 .name = "wcn36xx", 1405 .of_match_table = wcn36xx_of_match, 1406 }, 1407 }; 1408 1409 module_platform_driver(wcn36xx_driver); 1410 1411 MODULE_LICENSE("Dual BSD/GPL"); 1412 MODULE_AUTHOR("Eugene Krasnikov k.eugene.e@gmail.com"); 1413 MODULE_FIRMWARE(WLAN_NV_FILE); 1414