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