1 /* 2 * Copyright (c) 2010-2011 Atheros Communications Inc. 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 11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 15 */ 16 17 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 18 19 #include "htc.h" 20 21 MODULE_AUTHOR("Atheros Communications"); 22 MODULE_LICENSE("Dual BSD/GPL"); 23 MODULE_DESCRIPTION("Atheros driver 802.11n HTC based wireless devices"); 24 25 static unsigned int ath9k_debug = ATH_DBG_DEFAULT; 26 module_param_named(debug, ath9k_debug, uint, 0); 27 MODULE_PARM_DESC(debug, "Debugging mask"); 28 29 int htc_modparam_nohwcrypt; 30 module_param_named(nohwcrypt, htc_modparam_nohwcrypt, int, 0444); 31 MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption"); 32 33 static int ath9k_htc_btcoex_enable; 34 module_param_named(btcoex_enable, ath9k_htc_btcoex_enable, int, 0444); 35 MODULE_PARM_DESC(btcoex_enable, "Enable wifi-BT coexistence"); 36 37 static int ath9k_ps_enable; 38 module_param_named(ps_enable, ath9k_ps_enable, int, 0444); 39 MODULE_PARM_DESC(ps_enable, "Enable WLAN PowerSave"); 40 41 #ifdef CONFIG_MAC80211_LEDS 42 static const struct ieee80211_tpt_blink ath9k_htc_tpt_blink[] = { 43 { .throughput = 0 * 1024, .blink_time = 334 }, 44 { .throughput = 1 * 1024, .blink_time = 260 }, 45 { .throughput = 5 * 1024, .blink_time = 220 }, 46 { .throughput = 10 * 1024, .blink_time = 190 }, 47 { .throughput = 20 * 1024, .blink_time = 170 }, 48 { .throughput = 50 * 1024, .blink_time = 150 }, 49 { .throughput = 70 * 1024, .blink_time = 130 }, 50 { .throughput = 100 * 1024, .blink_time = 110 }, 51 { .throughput = 200 * 1024, .blink_time = 80 }, 52 { .throughput = 300 * 1024, .blink_time = 50 }, 53 }; 54 #endif 55 56 static int ath9k_htc_wait_for_target(struct ath9k_htc_priv *priv) 57 { 58 int time_left; 59 60 if (atomic_read(&priv->htc->tgt_ready) > 0) { 61 atomic_dec(&priv->htc->tgt_ready); 62 return 0; 63 } 64 65 /* Firmware can take up to 50ms to get ready, to be safe use 1 second */ 66 time_left = wait_for_completion_timeout(&priv->htc->target_wait, HZ); 67 if (!time_left) { 68 dev_err(priv->dev, "ath9k_htc: Target is unresponsive\n"); 69 return -ETIMEDOUT; 70 } 71 72 atomic_dec(&priv->htc->tgt_ready); 73 74 return 0; 75 } 76 77 static void ath9k_deinit_priv(struct ath9k_htc_priv *priv) 78 { 79 ath9k_hw_deinit(priv->ah); 80 kfree(priv->ah); 81 priv->ah = NULL; 82 } 83 84 static void ath9k_deinit_device(struct ath9k_htc_priv *priv) 85 { 86 struct ieee80211_hw *hw = priv->hw; 87 88 wiphy_rfkill_stop_polling(hw->wiphy); 89 ath9k_deinit_leds(priv); 90 ieee80211_unregister_hw(hw); 91 ath9k_rx_cleanup(priv); 92 ath9k_tx_cleanup(priv); 93 ath9k_deinit_priv(priv); 94 } 95 96 static inline int ath9k_htc_connect_svc(struct ath9k_htc_priv *priv, 97 u16 service_id, 98 void (*tx) (void *, 99 struct sk_buff *, 100 enum htc_endpoint_id, 101 bool txok), 102 enum htc_endpoint_id *ep_id) 103 { 104 struct htc_service_connreq req; 105 106 memset(&req, 0, sizeof(struct htc_service_connreq)); 107 108 req.service_id = service_id; 109 req.ep_callbacks.priv = priv; 110 req.ep_callbacks.rx = ath9k_htc_rxep; 111 req.ep_callbacks.tx = tx; 112 113 return htc_connect_service(priv->htc, &req, ep_id); 114 } 115 116 static int ath9k_init_htc_services(struct ath9k_htc_priv *priv, u16 devid, 117 u32 drv_info) 118 { 119 int ret; 120 121 /* WMI CMD*/ 122 ret = ath9k_wmi_connect(priv->htc, priv->wmi, &priv->wmi_cmd_ep); 123 if (ret) 124 goto err; 125 126 /* Beacon */ 127 ret = ath9k_htc_connect_svc(priv, WMI_BEACON_SVC, ath9k_htc_beaconep, 128 &priv->beacon_ep); 129 if (ret) 130 goto err; 131 132 /* CAB */ 133 ret = ath9k_htc_connect_svc(priv, WMI_CAB_SVC, ath9k_htc_txep, 134 &priv->cab_ep); 135 if (ret) 136 goto err; 137 138 139 /* UAPSD */ 140 ret = ath9k_htc_connect_svc(priv, WMI_UAPSD_SVC, ath9k_htc_txep, 141 &priv->uapsd_ep); 142 if (ret) 143 goto err; 144 145 /* MGMT */ 146 ret = ath9k_htc_connect_svc(priv, WMI_MGMT_SVC, ath9k_htc_txep, 147 &priv->mgmt_ep); 148 if (ret) 149 goto err; 150 151 /* DATA BE */ 152 ret = ath9k_htc_connect_svc(priv, WMI_DATA_BE_SVC, ath9k_htc_txep, 153 &priv->data_be_ep); 154 if (ret) 155 goto err; 156 157 /* DATA BK */ 158 ret = ath9k_htc_connect_svc(priv, WMI_DATA_BK_SVC, ath9k_htc_txep, 159 &priv->data_bk_ep); 160 if (ret) 161 goto err; 162 163 /* DATA VI */ 164 ret = ath9k_htc_connect_svc(priv, WMI_DATA_VI_SVC, ath9k_htc_txep, 165 &priv->data_vi_ep); 166 if (ret) 167 goto err; 168 169 /* DATA VO */ 170 ret = ath9k_htc_connect_svc(priv, WMI_DATA_VO_SVC, ath9k_htc_txep, 171 &priv->data_vo_ep); 172 if (ret) 173 goto err; 174 175 /* 176 * Setup required credits before initializing HTC. 177 * This is a bit hacky, but, since queuing is done in 178 * the HIF layer, shouldn't matter much. 179 */ 180 181 if (IS_AR7010_DEVICE(drv_info)) 182 priv->htc->credits = 45; 183 else 184 priv->htc->credits = 33; 185 186 ret = htc_init(priv->htc); 187 if (ret) 188 goto err; 189 190 dev_info(priv->dev, "ath9k_htc: HTC initialized with %d credits\n", 191 priv->htc->credits); 192 193 return 0; 194 195 err: 196 dev_err(priv->dev, "ath9k_htc: Unable to initialize HTC services\n"); 197 return ret; 198 } 199 200 static void ath9k_reg_notifier(struct wiphy *wiphy, 201 struct regulatory_request *request) 202 { 203 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); 204 struct ath9k_htc_priv *priv = hw->priv; 205 206 ath_reg_notifier_apply(wiphy, request, 207 ath9k_hw_regulatory(priv->ah)); 208 } 209 210 static unsigned int ath9k_regread(void *hw_priv, u32 reg_offset) 211 { 212 struct ath_hw *ah = (struct ath_hw *) hw_priv; 213 struct ath_common *common = ath9k_hw_common(ah); 214 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv; 215 __be32 val, reg = cpu_to_be32(reg_offset); 216 int r; 217 218 r = ath9k_wmi_cmd(priv->wmi, WMI_REG_READ_CMDID, 219 (u8 *) ®, sizeof(reg), 220 (u8 *) &val, sizeof(val), 221 100); 222 if (unlikely(r)) { 223 ath_dbg(common, WMI, "REGISTER READ FAILED: (0x%04x, %d)\n", 224 reg_offset, r); 225 return -EIO; 226 } 227 228 return be32_to_cpu(val); 229 } 230 231 static void ath9k_multi_regread(void *hw_priv, u32 *addr, 232 u32 *val, u16 count) 233 { 234 struct ath_hw *ah = (struct ath_hw *) hw_priv; 235 struct ath_common *common = ath9k_hw_common(ah); 236 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv; 237 __be32 tmpaddr[8]; 238 __be32 tmpval[8]; 239 int i, ret; 240 241 for (i = 0; i < count; i++) { 242 tmpaddr[i] = cpu_to_be32(addr[i]); 243 } 244 245 ret = ath9k_wmi_cmd(priv->wmi, WMI_REG_READ_CMDID, 246 (u8 *)tmpaddr , sizeof(u32) * count, 247 (u8 *)tmpval, sizeof(u32) * count, 248 100); 249 if (unlikely(ret)) { 250 ath_dbg(common, WMI, 251 "Multiple REGISTER READ FAILED (count: %d)\n", count); 252 } 253 254 for (i = 0; i < count; i++) { 255 val[i] = be32_to_cpu(tmpval[i]); 256 } 257 } 258 259 static void ath9k_regwrite_single(void *hw_priv, u32 val, u32 reg_offset) 260 { 261 struct ath_hw *ah = (struct ath_hw *) hw_priv; 262 struct ath_common *common = ath9k_hw_common(ah); 263 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv; 264 const __be32 buf[2] = { 265 cpu_to_be32(reg_offset), 266 cpu_to_be32(val), 267 }; 268 int r; 269 270 r = ath9k_wmi_cmd(priv->wmi, WMI_REG_WRITE_CMDID, 271 (u8 *) &buf, sizeof(buf), 272 (u8 *) &val, sizeof(val), 273 100); 274 if (unlikely(r)) { 275 ath_dbg(common, WMI, "REGISTER WRITE FAILED:(0x%04x, %d)\n", 276 reg_offset, r); 277 } 278 } 279 280 static void ath9k_regwrite_buffer(void *hw_priv, u32 val, u32 reg_offset) 281 { 282 struct ath_hw *ah = (struct ath_hw *) hw_priv; 283 struct ath_common *common = ath9k_hw_common(ah); 284 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv; 285 u32 rsp_status; 286 int r; 287 288 mutex_lock(&priv->wmi->multi_write_mutex); 289 290 /* Store the register/value */ 291 priv->wmi->multi_write[priv->wmi->multi_write_idx].reg = 292 cpu_to_be32(reg_offset); 293 priv->wmi->multi_write[priv->wmi->multi_write_idx].val = 294 cpu_to_be32(val); 295 296 priv->wmi->multi_write_idx++; 297 298 /* If the buffer is full, send it out. */ 299 if (priv->wmi->multi_write_idx == MAX_CMD_NUMBER) { 300 r = ath9k_wmi_cmd(priv->wmi, WMI_REG_WRITE_CMDID, 301 (u8 *) &priv->wmi->multi_write, 302 sizeof(struct register_write) * priv->wmi->multi_write_idx, 303 (u8 *) &rsp_status, sizeof(rsp_status), 304 100); 305 if (unlikely(r)) { 306 ath_dbg(common, WMI, 307 "REGISTER WRITE FAILED, multi len: %d\n", 308 priv->wmi->multi_write_idx); 309 } 310 priv->wmi->multi_write_idx = 0; 311 } 312 313 mutex_unlock(&priv->wmi->multi_write_mutex); 314 } 315 316 static void ath9k_regwrite(void *hw_priv, u32 val, u32 reg_offset) 317 { 318 struct ath_hw *ah = (struct ath_hw *) hw_priv; 319 struct ath_common *common = ath9k_hw_common(ah); 320 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv; 321 322 if (atomic_read(&priv->wmi->mwrite_cnt)) 323 ath9k_regwrite_buffer(hw_priv, val, reg_offset); 324 else 325 ath9k_regwrite_single(hw_priv, val, reg_offset); 326 } 327 328 static void ath9k_enable_regwrite_buffer(void *hw_priv) 329 { 330 struct ath_hw *ah = (struct ath_hw *) hw_priv; 331 struct ath_common *common = ath9k_hw_common(ah); 332 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv; 333 334 atomic_inc(&priv->wmi->mwrite_cnt); 335 } 336 337 static void ath9k_regwrite_flush(void *hw_priv) 338 { 339 struct ath_hw *ah = (struct ath_hw *) hw_priv; 340 struct ath_common *common = ath9k_hw_common(ah); 341 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv; 342 u32 rsp_status; 343 int r; 344 345 atomic_dec(&priv->wmi->mwrite_cnt); 346 347 mutex_lock(&priv->wmi->multi_write_mutex); 348 349 if (priv->wmi->multi_write_idx) { 350 r = ath9k_wmi_cmd(priv->wmi, WMI_REG_WRITE_CMDID, 351 (u8 *) &priv->wmi->multi_write, 352 sizeof(struct register_write) * priv->wmi->multi_write_idx, 353 (u8 *) &rsp_status, sizeof(rsp_status), 354 100); 355 if (unlikely(r)) { 356 ath_dbg(common, WMI, 357 "REGISTER WRITE FAILED, multi len: %d\n", 358 priv->wmi->multi_write_idx); 359 } 360 priv->wmi->multi_write_idx = 0; 361 } 362 363 mutex_unlock(&priv->wmi->multi_write_mutex); 364 } 365 366 static u32 ath9k_reg_rmw(void *hw_priv, u32 reg_offset, u32 set, u32 clr) 367 { 368 u32 val; 369 370 val = ath9k_regread(hw_priv, reg_offset); 371 val &= ~clr; 372 val |= set; 373 ath9k_regwrite(hw_priv, val, reg_offset); 374 return val; 375 } 376 377 static void ath_usb_read_cachesize(struct ath_common *common, int *csz) 378 { 379 *csz = L1_CACHE_BYTES >> 2; 380 } 381 382 static bool ath_usb_eeprom_read(struct ath_common *common, u32 off, u16 *data) 383 { 384 struct ath_hw *ah = (struct ath_hw *) common->ah; 385 386 (void)REG_READ(ah, AR5416_EEPROM_OFFSET + (off << AR5416_EEPROM_S)); 387 388 if (!ath9k_hw_wait(ah, 389 AR_EEPROM_STATUS_DATA, 390 AR_EEPROM_STATUS_DATA_BUSY | 391 AR_EEPROM_STATUS_DATA_PROT_ACCESS, 0, 392 AH_WAIT_TIMEOUT)) 393 return false; 394 395 *data = MS(REG_READ(ah, AR_EEPROM_STATUS_DATA), 396 AR_EEPROM_STATUS_DATA_VAL); 397 398 return true; 399 } 400 401 static const struct ath_bus_ops ath9k_usb_bus_ops = { 402 .ath_bus_type = ATH_USB, 403 .read_cachesize = ath_usb_read_cachesize, 404 .eeprom_read = ath_usb_eeprom_read, 405 }; 406 407 static int ath9k_init_queues(struct ath9k_htc_priv *priv) 408 { 409 struct ath_common *common = ath9k_hw_common(priv->ah); 410 int i; 411 412 for (i = 0; i < ARRAY_SIZE(priv->hwq_map); i++) 413 priv->hwq_map[i] = -1; 414 415 priv->beaconq = ath9k_hw_beaconq_setup(priv->ah); 416 if (priv->beaconq == -1) { 417 ath_err(common, "Unable to setup BEACON xmit queue\n"); 418 goto err; 419 } 420 421 priv->cabq = ath9k_htc_cabq_setup(priv); 422 if (priv->cabq == -1) { 423 ath_err(common, "Unable to setup CAB xmit queue\n"); 424 goto err; 425 } 426 427 if (!ath9k_htc_txq_setup(priv, IEEE80211_AC_BE)) { 428 ath_err(common, "Unable to setup xmit queue for BE traffic\n"); 429 goto err; 430 } 431 432 if (!ath9k_htc_txq_setup(priv, IEEE80211_AC_BK)) { 433 ath_err(common, "Unable to setup xmit queue for BK traffic\n"); 434 goto err; 435 } 436 if (!ath9k_htc_txq_setup(priv, IEEE80211_AC_VI)) { 437 ath_err(common, "Unable to setup xmit queue for VI traffic\n"); 438 goto err; 439 } 440 if (!ath9k_htc_txq_setup(priv, IEEE80211_AC_VO)) { 441 ath_err(common, "Unable to setup xmit queue for VO traffic\n"); 442 goto err; 443 } 444 445 return 0; 446 447 err: 448 return -EINVAL; 449 } 450 451 static void ath9k_init_misc(struct ath9k_htc_priv *priv) 452 { 453 struct ath_common *common = ath9k_hw_common(priv->ah); 454 455 memcpy(common->bssidmask, ath_bcast_mac, ETH_ALEN); 456 457 common->last_rssi = ATH_RSSI_DUMMY_MARKER; 458 priv->ah->opmode = NL80211_IFTYPE_STATION; 459 } 460 461 static int ath9k_init_priv(struct ath9k_htc_priv *priv, 462 u16 devid, char *product, 463 u32 drv_info) 464 { 465 struct ath_hw *ah = NULL; 466 struct ath_common *common; 467 int i, ret = 0, csz = 0; 468 469 set_bit(OP_INVALID, &priv->op_flags); 470 471 ah = kzalloc(sizeof(struct ath_hw), GFP_KERNEL); 472 if (!ah) 473 return -ENOMEM; 474 475 ah->dev = priv->dev; 476 ah->hw_version.devid = devid; 477 ah->hw_version.usbdev = drv_info; 478 ah->ah_flags |= AH_USE_EEPROM; 479 ah->reg_ops.read = ath9k_regread; 480 ah->reg_ops.multi_read = ath9k_multi_regread; 481 ah->reg_ops.write = ath9k_regwrite; 482 ah->reg_ops.enable_write_buffer = ath9k_enable_regwrite_buffer; 483 ah->reg_ops.write_flush = ath9k_regwrite_flush; 484 ah->reg_ops.rmw = ath9k_reg_rmw; 485 priv->ah = ah; 486 487 common = ath9k_hw_common(ah); 488 common->ops = &ah->reg_ops; 489 common->bus_ops = &ath9k_usb_bus_ops; 490 common->ah = ah; 491 common->hw = priv->hw; 492 common->priv = priv; 493 common->debug_mask = ath9k_debug; 494 common->btcoex_enabled = ath9k_htc_btcoex_enable == 1; 495 496 spin_lock_init(&priv->beacon_lock); 497 spin_lock_init(&priv->tx.tx_lock); 498 mutex_init(&priv->mutex); 499 mutex_init(&priv->htc_pm_lock); 500 tasklet_init(&priv->rx_tasklet, ath9k_rx_tasklet, 501 (unsigned long)priv); 502 tasklet_init(&priv->tx_failed_tasklet, ath9k_tx_failed_tasklet, 503 (unsigned long)priv); 504 INIT_DELAYED_WORK(&priv->ani_work, ath9k_htc_ani_work); 505 INIT_WORK(&priv->ps_work, ath9k_ps_work); 506 INIT_WORK(&priv->fatal_work, ath9k_fatal_work); 507 setup_timer(&priv->tx.cleanup_timer, ath9k_htc_tx_cleanup_timer, 508 (unsigned long)priv); 509 510 /* 511 * Cache line size is used to size and align various 512 * structures used to communicate with the hardware. 513 */ 514 ath_read_cachesize(common, &csz); 515 common->cachelsz = csz << 2; /* convert to bytes */ 516 517 ret = ath9k_hw_init(ah); 518 if (ret) { 519 ath_err(common, 520 "Unable to initialize hardware; initialization status: %d\n", 521 ret); 522 goto err_hw; 523 } 524 525 ret = ath9k_init_queues(priv); 526 if (ret) 527 goto err_queues; 528 529 for (i = 0; i < ATH9K_HTC_MAX_BCN_VIF; i++) 530 priv->cur_beacon_conf.bslot[i] = NULL; 531 532 ath9k_cmn_init_channels_rates(common); 533 ath9k_cmn_init_crypto(ah); 534 ath9k_init_misc(priv); 535 ath9k_htc_init_btcoex(priv, product); 536 537 return 0; 538 539 err_queues: 540 ath9k_hw_deinit(ah); 541 err_hw: 542 543 kfree(ah); 544 priv->ah = NULL; 545 546 return ret; 547 } 548 549 static const struct ieee80211_iface_limit if_limits[] = { 550 { .max = 2, .types = BIT(NL80211_IFTYPE_STATION) | 551 BIT(NL80211_IFTYPE_P2P_CLIENT) }, 552 { .max = 2, .types = BIT(NL80211_IFTYPE_AP) | 553 #ifdef CONFIG_MAC80211_MESH 554 BIT(NL80211_IFTYPE_MESH_POINT) | 555 #endif 556 BIT(NL80211_IFTYPE_P2P_GO) }, 557 }; 558 559 static const struct ieee80211_iface_combination if_comb = { 560 .limits = if_limits, 561 .n_limits = ARRAY_SIZE(if_limits), 562 .max_interfaces = 2, 563 .num_different_channels = 1, 564 }; 565 566 static void ath9k_set_hw_capab(struct ath9k_htc_priv *priv, 567 struct ieee80211_hw *hw) 568 { 569 struct ath_hw *ah = priv->ah; 570 struct ath_common *common = ath9k_hw_common(priv->ah); 571 struct base_eep_header *pBase; 572 573 hw->flags = IEEE80211_HW_SIGNAL_DBM | 574 IEEE80211_HW_AMPDU_AGGREGATION | 575 IEEE80211_HW_SPECTRUM_MGMT | 576 IEEE80211_HW_HAS_RATE_CONTROL | 577 IEEE80211_HW_RX_INCLUDES_FCS | 578 IEEE80211_HW_PS_NULLFUNC_STACK | 579 IEEE80211_HW_REPORTS_TX_ACK_STATUS | 580 IEEE80211_HW_MFP_CAPABLE | 581 IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING; 582 583 if (ath9k_ps_enable) 584 hw->flags |= IEEE80211_HW_SUPPORTS_PS; 585 586 hw->wiphy->interface_modes = 587 BIT(NL80211_IFTYPE_STATION) | 588 BIT(NL80211_IFTYPE_ADHOC) | 589 BIT(NL80211_IFTYPE_AP) | 590 BIT(NL80211_IFTYPE_P2P_GO) | 591 BIT(NL80211_IFTYPE_P2P_CLIENT) | 592 BIT(NL80211_IFTYPE_MESH_POINT); 593 594 hw->wiphy->iface_combinations = &if_comb; 595 hw->wiphy->n_iface_combinations = 1; 596 597 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; 598 599 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN | 600 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL; 601 602 hw->queues = 4; 603 hw->max_listen_interval = 1; 604 605 hw->vif_data_size = sizeof(struct ath9k_htc_vif); 606 hw->sta_data_size = sizeof(struct ath9k_htc_sta); 607 608 /* tx_frame_hdr is larger than tx_mgmt_hdr anyway */ 609 hw->extra_tx_headroom = sizeof(struct tx_frame_hdr) + 610 sizeof(struct htc_frame_hdr) + 4; 611 612 if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_2GHZ) 613 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = 614 &common->sbands[IEEE80211_BAND_2GHZ]; 615 if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_5GHZ) 616 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = 617 &common->sbands[IEEE80211_BAND_5GHZ]; 618 619 ath9k_cmn_reload_chainmask(ah); 620 621 pBase = ath9k_htc_get_eeprom_base(priv); 622 if (pBase) { 623 hw->wiphy->available_antennas_rx = pBase->rxMask; 624 hw->wiphy->available_antennas_tx = pBase->txMask; 625 } 626 627 SET_IEEE80211_PERM_ADDR(hw, common->macaddr); 628 } 629 630 static int ath9k_init_firmware_version(struct ath9k_htc_priv *priv) 631 { 632 struct ieee80211_hw *hw = priv->hw; 633 struct wmi_fw_version cmd_rsp; 634 int ret; 635 636 memset(&cmd_rsp, 0, sizeof(cmd_rsp)); 637 638 WMI_CMD(WMI_GET_FW_VERSION); 639 if (ret) 640 return -EINVAL; 641 642 priv->fw_version_major = be16_to_cpu(cmd_rsp.major); 643 priv->fw_version_minor = be16_to_cpu(cmd_rsp.minor); 644 645 snprintf(hw->wiphy->fw_version, sizeof(hw->wiphy->fw_version), "%d.%d", 646 priv->fw_version_major, 647 priv->fw_version_minor); 648 649 dev_info(priv->dev, "ath9k_htc: FW Version: %d.%d\n", 650 priv->fw_version_major, 651 priv->fw_version_minor); 652 653 /* 654 * Check if the available FW matches the driver's 655 * required version. 656 */ 657 if (priv->fw_version_major != MAJOR_VERSION_REQ || 658 priv->fw_version_minor < MINOR_VERSION_REQ) { 659 dev_err(priv->dev, "ath9k_htc: Please upgrade to FW version %d.%d\n", 660 MAJOR_VERSION_REQ, MINOR_VERSION_REQ); 661 return -EINVAL; 662 } 663 664 return 0; 665 } 666 667 static int ath9k_init_device(struct ath9k_htc_priv *priv, 668 u16 devid, char *product, u32 drv_info) 669 { 670 struct ieee80211_hw *hw = priv->hw; 671 struct ath_common *common; 672 struct ath_hw *ah; 673 int error = 0; 674 struct ath_regulatory *reg; 675 char hw_name[64]; 676 677 /* Bring up device */ 678 error = ath9k_init_priv(priv, devid, product, drv_info); 679 if (error != 0) 680 goto err_init; 681 682 ah = priv->ah; 683 common = ath9k_hw_common(ah); 684 ath9k_set_hw_capab(priv, hw); 685 686 error = ath9k_init_firmware_version(priv); 687 if (error != 0) 688 goto err_fw; 689 690 /* Initialize regulatory */ 691 error = ath_regd_init(&common->regulatory, priv->hw->wiphy, 692 ath9k_reg_notifier); 693 if (error) 694 goto err_regd; 695 696 reg = &common->regulatory; 697 698 /* Setup TX */ 699 error = ath9k_tx_init(priv); 700 if (error != 0) 701 goto err_tx; 702 703 /* Setup RX */ 704 error = ath9k_rx_init(priv); 705 if (error != 0) 706 goto err_rx; 707 708 ath9k_hw_disable(priv->ah); 709 #ifdef CONFIG_MAC80211_LEDS 710 /* must be initialized before ieee80211_register_hw */ 711 priv->led_cdev.default_trigger = ieee80211_create_tpt_led_trigger(priv->hw, 712 IEEE80211_TPT_LEDTRIG_FL_RADIO, ath9k_htc_tpt_blink, 713 ARRAY_SIZE(ath9k_htc_tpt_blink)); 714 #endif 715 716 /* Register with mac80211 */ 717 error = ieee80211_register_hw(hw); 718 if (error) 719 goto err_register; 720 721 /* Handle world regulatory */ 722 if (!ath_is_world_regd(reg)) { 723 error = regulatory_hint(hw->wiphy, reg->alpha2); 724 if (error) 725 goto err_world; 726 } 727 728 error = ath9k_htc_init_debug(priv->ah); 729 if (error) { 730 ath_err(common, "Unable to create debugfs files\n"); 731 goto err_world; 732 } 733 734 ath_dbg(common, CONFIG, 735 "WMI:%d, BCN:%d, CAB:%d, UAPSD:%d, MGMT:%d, BE:%d, BK:%d, VI:%d, VO:%d\n", 736 priv->wmi_cmd_ep, 737 priv->beacon_ep, 738 priv->cab_ep, 739 priv->uapsd_ep, 740 priv->mgmt_ep, 741 priv->data_be_ep, 742 priv->data_bk_ep, 743 priv->data_vi_ep, 744 priv->data_vo_ep); 745 746 ath9k_hw_name(priv->ah, hw_name, sizeof(hw_name)); 747 wiphy_info(hw->wiphy, "%s\n", hw_name); 748 749 ath9k_init_leds(priv); 750 ath9k_start_rfkill_poll(priv); 751 752 return 0; 753 754 err_world: 755 ieee80211_unregister_hw(hw); 756 err_register: 757 ath9k_rx_cleanup(priv); 758 err_rx: 759 ath9k_tx_cleanup(priv); 760 err_tx: 761 /* Nothing */ 762 err_regd: 763 /* Nothing */ 764 err_fw: 765 ath9k_deinit_priv(priv); 766 err_init: 767 return error; 768 } 769 770 int ath9k_htc_probe_device(struct htc_target *htc_handle, struct device *dev, 771 u16 devid, char *product, u32 drv_info) 772 { 773 struct ieee80211_hw *hw; 774 struct ath9k_htc_priv *priv; 775 int ret; 776 777 hw = ieee80211_alloc_hw(sizeof(struct ath9k_htc_priv), &ath9k_htc_ops); 778 if (!hw) 779 return -ENOMEM; 780 781 priv = hw->priv; 782 priv->hw = hw; 783 priv->htc = htc_handle; 784 priv->dev = dev; 785 htc_handle->drv_priv = priv; 786 SET_IEEE80211_DEV(hw, priv->dev); 787 788 ret = ath9k_htc_wait_for_target(priv); 789 if (ret) 790 goto err_free; 791 792 priv->wmi = ath9k_init_wmi(priv); 793 if (!priv->wmi) { 794 ret = -EINVAL; 795 goto err_free; 796 } 797 798 ret = ath9k_init_htc_services(priv, devid, drv_info); 799 if (ret) 800 goto err_init; 801 802 ret = ath9k_init_device(priv, devid, product, drv_info); 803 if (ret) 804 goto err_init; 805 806 return 0; 807 808 err_init: 809 ath9k_deinit_wmi(priv); 810 err_free: 811 ieee80211_free_hw(hw); 812 return ret; 813 } 814 815 void ath9k_htc_disconnect_device(struct htc_target *htc_handle, bool hotunplug) 816 { 817 if (htc_handle->drv_priv) { 818 819 /* Check if the device has been yanked out. */ 820 if (hotunplug) 821 htc_handle->drv_priv->ah->ah_flags |= AH_UNPLUGGED; 822 823 ath9k_deinit_device(htc_handle->drv_priv); 824 ath9k_deinit_wmi(htc_handle->drv_priv); 825 ieee80211_free_hw(htc_handle->drv_priv->hw); 826 } 827 } 828 829 #ifdef CONFIG_PM 830 831 void ath9k_htc_suspend(struct htc_target *htc_handle) 832 { 833 ath9k_htc_setpower(htc_handle->drv_priv, ATH9K_PM_FULL_SLEEP); 834 } 835 836 int ath9k_htc_resume(struct htc_target *htc_handle) 837 { 838 struct ath9k_htc_priv *priv = htc_handle->drv_priv; 839 int ret; 840 841 ret = ath9k_htc_wait_for_target(priv); 842 if (ret) 843 return ret; 844 845 ret = ath9k_init_htc_services(priv, priv->ah->hw_version.devid, 846 priv->ah->hw_version.usbdev); 847 ath9k_configure_leds(priv); 848 849 return ret; 850 } 851 #endif 852 853 static int __init ath9k_htc_init(void) 854 { 855 if (ath9k_hif_usb_init() < 0) { 856 pr_err("No USB devices found, driver not installed\n"); 857 return -ENODEV; 858 } 859 860 return 0; 861 } 862 module_init(ath9k_htc_init); 863 864 static void __exit ath9k_htc_exit(void) 865 { 866 ath9k_hif_usb_exit(); 867 pr_info("Driver unloaded\n"); 868 } 869 module_exit(ath9k_htc_exit); 870