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 void ath9k_htc_op_ps_wakeup(struct ath_common *common) 57 { 58 ath9k_htc_ps_wakeup((struct ath9k_htc_priv *) common->priv); 59 } 60 61 void ath9k_htc_op_ps_restore(struct ath_common *common) 62 { 63 ath9k_htc_ps_restore((struct ath9k_htc_priv *) common->priv); 64 } 65 66 struct ath_ps_ops ath9k_htc_ps_ops = { 67 .wakeup = ath9k_htc_op_ps_wakeup, 68 .restore = ath9k_htc_op_ps_restore, 69 }; 70 71 static int ath9k_htc_wait_for_target(struct ath9k_htc_priv *priv) 72 { 73 int time_left; 74 75 if (atomic_read(&priv->htc->tgt_ready) > 0) { 76 atomic_dec(&priv->htc->tgt_ready); 77 return 0; 78 } 79 80 /* Firmware can take up to 50ms to get ready, to be safe use 1 second */ 81 time_left = wait_for_completion_timeout(&priv->htc->target_wait, HZ); 82 if (!time_left) { 83 dev_err(priv->dev, "ath9k_htc: Target is unresponsive\n"); 84 return -ETIMEDOUT; 85 } 86 87 atomic_dec(&priv->htc->tgt_ready); 88 89 return 0; 90 } 91 92 static void ath9k_deinit_priv(struct ath9k_htc_priv *priv) 93 { 94 ath9k_hw_deinit(priv->ah); 95 kfree(priv->ah); 96 priv->ah = NULL; 97 } 98 99 static void ath9k_deinit_device(struct ath9k_htc_priv *priv) 100 { 101 struct ieee80211_hw *hw = priv->hw; 102 103 wiphy_rfkill_stop_polling(hw->wiphy); 104 ath9k_deinit_leds(priv); 105 ieee80211_unregister_hw(hw); 106 ath9k_rx_cleanup(priv); 107 ath9k_tx_cleanup(priv); 108 ath9k_deinit_priv(priv); 109 } 110 111 static inline int ath9k_htc_connect_svc(struct ath9k_htc_priv *priv, 112 u16 service_id, 113 void (*tx) (void *, 114 struct sk_buff *, 115 enum htc_endpoint_id, 116 bool txok), 117 enum htc_endpoint_id *ep_id) 118 { 119 struct htc_service_connreq req; 120 121 memset(&req, 0, sizeof(struct htc_service_connreq)); 122 123 req.service_id = service_id; 124 req.ep_callbacks.priv = priv; 125 req.ep_callbacks.rx = ath9k_htc_rxep; 126 req.ep_callbacks.tx = tx; 127 128 return htc_connect_service(priv->htc, &req, ep_id); 129 } 130 131 static int ath9k_init_htc_services(struct ath9k_htc_priv *priv, u16 devid, 132 u32 drv_info) 133 { 134 int ret; 135 136 /* WMI CMD*/ 137 ret = ath9k_wmi_connect(priv->htc, priv->wmi, &priv->wmi_cmd_ep); 138 if (ret) 139 goto err; 140 141 /* Beacon */ 142 ret = ath9k_htc_connect_svc(priv, WMI_BEACON_SVC, ath9k_htc_beaconep, 143 &priv->beacon_ep); 144 if (ret) 145 goto err; 146 147 /* CAB */ 148 ret = ath9k_htc_connect_svc(priv, WMI_CAB_SVC, ath9k_htc_txep, 149 &priv->cab_ep); 150 if (ret) 151 goto err; 152 153 154 /* UAPSD */ 155 ret = ath9k_htc_connect_svc(priv, WMI_UAPSD_SVC, ath9k_htc_txep, 156 &priv->uapsd_ep); 157 if (ret) 158 goto err; 159 160 /* MGMT */ 161 ret = ath9k_htc_connect_svc(priv, WMI_MGMT_SVC, ath9k_htc_txep, 162 &priv->mgmt_ep); 163 if (ret) 164 goto err; 165 166 /* DATA BE */ 167 ret = ath9k_htc_connect_svc(priv, WMI_DATA_BE_SVC, ath9k_htc_txep, 168 &priv->data_be_ep); 169 if (ret) 170 goto err; 171 172 /* DATA BK */ 173 ret = ath9k_htc_connect_svc(priv, WMI_DATA_BK_SVC, ath9k_htc_txep, 174 &priv->data_bk_ep); 175 if (ret) 176 goto err; 177 178 /* DATA VI */ 179 ret = ath9k_htc_connect_svc(priv, WMI_DATA_VI_SVC, ath9k_htc_txep, 180 &priv->data_vi_ep); 181 if (ret) 182 goto err; 183 184 /* DATA VO */ 185 ret = ath9k_htc_connect_svc(priv, WMI_DATA_VO_SVC, ath9k_htc_txep, 186 &priv->data_vo_ep); 187 if (ret) 188 goto err; 189 190 /* 191 * Setup required credits before initializing HTC. 192 * This is a bit hacky, but, since queuing is done in 193 * the HIF layer, shouldn't matter much. 194 */ 195 196 if (IS_AR7010_DEVICE(drv_info)) 197 priv->htc->credits = 45; 198 else 199 priv->htc->credits = 33; 200 201 ret = htc_init(priv->htc); 202 if (ret) 203 goto err; 204 205 dev_info(priv->dev, "ath9k_htc: HTC initialized with %d credits\n", 206 priv->htc->credits); 207 208 return 0; 209 210 err: 211 dev_err(priv->dev, "ath9k_htc: Unable to initialize HTC services\n"); 212 return ret; 213 } 214 215 static void ath9k_reg_notifier(struct wiphy *wiphy, 216 struct regulatory_request *request) 217 { 218 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); 219 struct ath9k_htc_priv *priv = hw->priv; 220 221 ath_reg_notifier_apply(wiphy, request, 222 ath9k_hw_regulatory(priv->ah)); 223 } 224 225 static unsigned int ath9k_regread(void *hw_priv, u32 reg_offset) 226 { 227 struct ath_hw *ah = (struct ath_hw *) hw_priv; 228 struct ath_common *common = ath9k_hw_common(ah); 229 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv; 230 __be32 val, reg = cpu_to_be32(reg_offset); 231 int r; 232 233 r = ath9k_wmi_cmd(priv->wmi, WMI_REG_READ_CMDID, 234 (u8 *) ®, sizeof(reg), 235 (u8 *) &val, sizeof(val), 236 100); 237 if (unlikely(r)) { 238 ath_dbg(common, WMI, "REGISTER READ FAILED: (0x%04x, %d)\n", 239 reg_offset, r); 240 return -EIO; 241 } 242 243 return be32_to_cpu(val); 244 } 245 246 static void ath9k_multi_regread(void *hw_priv, u32 *addr, 247 u32 *val, u16 count) 248 { 249 struct ath_hw *ah = (struct ath_hw *) hw_priv; 250 struct ath_common *common = ath9k_hw_common(ah); 251 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv; 252 __be32 tmpaddr[8]; 253 __be32 tmpval[8]; 254 int i, ret; 255 256 for (i = 0; i < count; i++) { 257 tmpaddr[i] = cpu_to_be32(addr[i]); 258 } 259 260 ret = ath9k_wmi_cmd(priv->wmi, WMI_REG_READ_CMDID, 261 (u8 *)tmpaddr , sizeof(u32) * count, 262 (u8 *)tmpval, sizeof(u32) * count, 263 100); 264 if (unlikely(ret)) { 265 ath_dbg(common, WMI, 266 "Multiple REGISTER READ FAILED (count: %d)\n", count); 267 } 268 269 for (i = 0; i < count; i++) { 270 val[i] = be32_to_cpu(tmpval[i]); 271 } 272 } 273 274 static void ath9k_regwrite_multi(struct ath_common *common) 275 { 276 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv; 277 u32 rsp_status; 278 int r; 279 280 r = ath9k_wmi_cmd(priv->wmi, WMI_REG_WRITE_CMDID, 281 (u8 *) &priv->wmi->multi_write, 282 sizeof(struct register_write) * priv->wmi->multi_write_idx, 283 (u8 *) &rsp_status, sizeof(rsp_status), 284 100); 285 if (unlikely(r)) { 286 ath_dbg(common, WMI, 287 "REGISTER WRITE FAILED, multi len: %d\n", 288 priv->wmi->multi_write_idx); 289 } 290 priv->wmi->multi_write_idx = 0; 291 } 292 293 static void ath9k_regwrite_single(void *hw_priv, u32 val, u32 reg_offset) 294 { 295 struct ath_hw *ah = (struct ath_hw *) hw_priv; 296 struct ath_common *common = ath9k_hw_common(ah); 297 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv; 298 const __be32 buf[2] = { 299 cpu_to_be32(reg_offset), 300 cpu_to_be32(val), 301 }; 302 int r; 303 304 r = ath9k_wmi_cmd(priv->wmi, WMI_REG_WRITE_CMDID, 305 (u8 *) &buf, sizeof(buf), 306 (u8 *) &val, sizeof(val), 307 100); 308 if (unlikely(r)) { 309 ath_dbg(common, WMI, "REGISTER WRITE FAILED:(0x%04x, %d)\n", 310 reg_offset, r); 311 } 312 } 313 314 static void ath9k_regwrite_buffer(void *hw_priv, u32 val, u32 reg_offset) 315 { 316 struct ath_hw *ah = (struct ath_hw *) hw_priv; 317 struct ath_common *common = ath9k_hw_common(ah); 318 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv; 319 320 mutex_lock(&priv->wmi->multi_write_mutex); 321 322 /* Store the register/value */ 323 priv->wmi->multi_write[priv->wmi->multi_write_idx].reg = 324 cpu_to_be32(reg_offset); 325 priv->wmi->multi_write[priv->wmi->multi_write_idx].val = 326 cpu_to_be32(val); 327 328 priv->wmi->multi_write_idx++; 329 330 /* If the buffer is full, send it out. */ 331 if (priv->wmi->multi_write_idx == MAX_CMD_NUMBER) 332 ath9k_regwrite_multi(common); 333 334 mutex_unlock(&priv->wmi->multi_write_mutex); 335 } 336 337 static void ath9k_regwrite(void *hw_priv, u32 val, u32 reg_offset) 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; 342 343 if (atomic_read(&priv->wmi->mwrite_cnt)) 344 ath9k_regwrite_buffer(hw_priv, val, reg_offset); 345 else 346 ath9k_regwrite_single(hw_priv, val, reg_offset); 347 } 348 349 static void ath9k_enable_regwrite_buffer(void *hw_priv) 350 { 351 struct ath_hw *ah = (struct ath_hw *) hw_priv; 352 struct ath_common *common = ath9k_hw_common(ah); 353 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv; 354 355 atomic_inc(&priv->wmi->mwrite_cnt); 356 } 357 358 static void ath9k_regwrite_flush(void *hw_priv) 359 { 360 struct ath_hw *ah = (struct ath_hw *) hw_priv; 361 struct ath_common *common = ath9k_hw_common(ah); 362 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv; 363 364 atomic_dec(&priv->wmi->mwrite_cnt); 365 366 mutex_lock(&priv->wmi->multi_write_mutex); 367 368 if (priv->wmi->multi_write_idx) 369 ath9k_regwrite_multi(common); 370 371 mutex_unlock(&priv->wmi->multi_write_mutex); 372 } 373 374 static u32 ath9k_reg_rmw(void *hw_priv, u32 reg_offset, u32 set, u32 clr) 375 { 376 u32 val; 377 378 val = ath9k_regread(hw_priv, reg_offset); 379 val &= ~clr; 380 val |= set; 381 ath9k_regwrite(hw_priv, val, reg_offset); 382 return val; 383 } 384 385 static void ath_usb_read_cachesize(struct ath_common *common, int *csz) 386 { 387 *csz = L1_CACHE_BYTES >> 2; 388 } 389 390 static bool ath_usb_eeprom_read(struct ath_common *common, u32 off, u16 *data) 391 { 392 struct ath_hw *ah = (struct ath_hw *) common->ah; 393 394 (void)REG_READ(ah, AR5416_EEPROM_OFFSET + (off << AR5416_EEPROM_S)); 395 396 if (!ath9k_hw_wait(ah, 397 AR_EEPROM_STATUS_DATA, 398 AR_EEPROM_STATUS_DATA_BUSY | 399 AR_EEPROM_STATUS_DATA_PROT_ACCESS, 0, 400 AH_WAIT_TIMEOUT)) 401 return false; 402 403 *data = MS(REG_READ(ah, AR_EEPROM_STATUS_DATA), 404 AR_EEPROM_STATUS_DATA_VAL); 405 406 return true; 407 } 408 409 static const struct ath_bus_ops ath9k_usb_bus_ops = { 410 .ath_bus_type = ATH_USB, 411 .read_cachesize = ath_usb_read_cachesize, 412 .eeprom_read = ath_usb_eeprom_read, 413 }; 414 415 static int ath9k_init_queues(struct ath9k_htc_priv *priv) 416 { 417 struct ath_common *common = ath9k_hw_common(priv->ah); 418 int i; 419 420 for (i = 0; i < ARRAY_SIZE(priv->hwq_map); i++) 421 priv->hwq_map[i] = -1; 422 423 priv->beacon.beaconq = ath9k_hw_beaconq_setup(priv->ah); 424 if (priv->beacon.beaconq == -1) { 425 ath_err(common, "Unable to setup BEACON xmit queue\n"); 426 goto err; 427 } 428 429 priv->cabq = ath9k_htc_cabq_setup(priv); 430 if (priv->cabq == -1) { 431 ath_err(common, "Unable to setup CAB xmit queue\n"); 432 goto err; 433 } 434 435 if (!ath9k_htc_txq_setup(priv, IEEE80211_AC_BE)) { 436 ath_err(common, "Unable to setup xmit queue for BE traffic\n"); 437 goto err; 438 } 439 440 if (!ath9k_htc_txq_setup(priv, IEEE80211_AC_BK)) { 441 ath_err(common, "Unable to setup xmit queue for BK traffic\n"); 442 goto err; 443 } 444 if (!ath9k_htc_txq_setup(priv, IEEE80211_AC_VI)) { 445 ath_err(common, "Unable to setup xmit queue for VI traffic\n"); 446 goto err; 447 } 448 if (!ath9k_htc_txq_setup(priv, IEEE80211_AC_VO)) { 449 ath_err(common, "Unable to setup xmit queue for VO traffic\n"); 450 goto err; 451 } 452 453 return 0; 454 455 err: 456 return -EINVAL; 457 } 458 459 static void ath9k_init_misc(struct ath9k_htc_priv *priv) 460 { 461 struct ath_common *common = ath9k_hw_common(priv->ah); 462 463 memcpy(common->bssidmask, ath_bcast_mac, ETH_ALEN); 464 465 common->last_rssi = ATH_RSSI_DUMMY_MARKER; 466 priv->ah->opmode = NL80211_IFTYPE_STATION; 467 } 468 469 static int ath9k_init_priv(struct ath9k_htc_priv *priv, 470 u16 devid, char *product, 471 u32 drv_info) 472 { 473 struct ath_hw *ah = NULL; 474 struct ath_common *common; 475 int i, ret = 0, csz = 0; 476 477 ah = kzalloc(sizeof(struct ath_hw), GFP_KERNEL); 478 if (!ah) 479 return -ENOMEM; 480 481 ah->dev = priv->dev; 482 ah->hw = priv->hw; 483 ah->hw_version.devid = devid; 484 ah->hw_version.usbdev = drv_info; 485 ah->ah_flags |= AH_USE_EEPROM; 486 ah->reg_ops.read = ath9k_regread; 487 ah->reg_ops.multi_read = ath9k_multi_regread; 488 ah->reg_ops.write = ath9k_regwrite; 489 ah->reg_ops.enable_write_buffer = ath9k_enable_regwrite_buffer; 490 ah->reg_ops.write_flush = ath9k_regwrite_flush; 491 ah->reg_ops.rmw = ath9k_reg_rmw; 492 priv->ah = ah; 493 494 common = ath9k_hw_common(ah); 495 common->ops = &ah->reg_ops; 496 common->ps_ops = &ath9k_htc_ps_ops; 497 common->bus_ops = &ath9k_usb_bus_ops; 498 common->ah = ah; 499 common->hw = priv->hw; 500 common->priv = priv; 501 common->debug_mask = ath9k_debug; 502 common->btcoex_enabled = ath9k_htc_btcoex_enable == 1; 503 set_bit(ATH_OP_INVALID, &common->op_flags); 504 505 spin_lock_init(&priv->beacon_lock); 506 spin_lock_init(&priv->tx.tx_lock); 507 mutex_init(&priv->mutex); 508 mutex_init(&priv->htc_pm_lock); 509 tasklet_init(&priv->rx_tasklet, ath9k_rx_tasklet, 510 (unsigned long)priv); 511 tasklet_init(&priv->tx_failed_tasklet, ath9k_tx_failed_tasklet, 512 (unsigned long)priv); 513 INIT_DELAYED_WORK(&priv->ani_work, ath9k_htc_ani_work); 514 INIT_WORK(&priv->ps_work, ath9k_ps_work); 515 INIT_WORK(&priv->fatal_work, ath9k_fatal_work); 516 setup_timer(&priv->tx.cleanup_timer, ath9k_htc_tx_cleanup_timer, 517 (unsigned long)priv); 518 519 /* 520 * Cache line size is used to size and align various 521 * structures used to communicate with the hardware. 522 */ 523 ath_read_cachesize(common, &csz); 524 common->cachelsz = csz << 2; /* convert to bytes */ 525 526 ret = ath9k_hw_init(ah); 527 if (ret) { 528 ath_err(common, 529 "Unable to initialize hardware; initialization status: %d\n", 530 ret); 531 goto err_hw; 532 } 533 534 ret = ath9k_init_queues(priv); 535 if (ret) 536 goto err_queues; 537 538 for (i = 0; i < ATH9K_HTC_MAX_BCN_VIF; i++) 539 priv->beacon.bslot[i] = NULL; 540 priv->beacon.slottime = ATH9K_SLOT_TIME_9; 541 542 ath9k_cmn_init_channels_rates(common); 543 ath9k_cmn_init_crypto(ah); 544 ath9k_init_misc(priv); 545 ath9k_htc_init_btcoex(priv, product); 546 547 return 0; 548 549 err_queues: 550 ath9k_hw_deinit(ah); 551 err_hw: 552 553 kfree(ah); 554 priv->ah = NULL; 555 556 return ret; 557 } 558 559 static const struct ieee80211_iface_limit if_limits[] = { 560 { .max = 2, .types = BIT(NL80211_IFTYPE_STATION) | 561 BIT(NL80211_IFTYPE_P2P_CLIENT) }, 562 { .max = 2, .types = BIT(NL80211_IFTYPE_AP) | 563 #ifdef CONFIG_MAC80211_MESH 564 BIT(NL80211_IFTYPE_MESH_POINT) | 565 #endif 566 BIT(NL80211_IFTYPE_P2P_GO) }, 567 }; 568 569 static const struct ieee80211_iface_combination if_comb = { 570 .limits = if_limits, 571 .n_limits = ARRAY_SIZE(if_limits), 572 .max_interfaces = 2, 573 .num_different_channels = 1, 574 }; 575 576 static void ath9k_set_hw_capab(struct ath9k_htc_priv *priv, 577 struct ieee80211_hw *hw) 578 { 579 struct ath_hw *ah = priv->ah; 580 struct ath_common *common = ath9k_hw_common(priv->ah); 581 struct base_eep_header *pBase; 582 583 hw->flags = IEEE80211_HW_SIGNAL_DBM | 584 IEEE80211_HW_AMPDU_AGGREGATION | 585 IEEE80211_HW_SPECTRUM_MGMT | 586 IEEE80211_HW_HAS_RATE_CONTROL | 587 IEEE80211_HW_RX_INCLUDES_FCS | 588 IEEE80211_HW_PS_NULLFUNC_STACK | 589 IEEE80211_HW_REPORTS_TX_ACK_STATUS | 590 IEEE80211_HW_MFP_CAPABLE | 591 IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING; 592 593 if (ath9k_ps_enable) 594 hw->flags |= IEEE80211_HW_SUPPORTS_PS; 595 596 hw->wiphy->interface_modes = 597 BIT(NL80211_IFTYPE_STATION) | 598 BIT(NL80211_IFTYPE_ADHOC) | 599 BIT(NL80211_IFTYPE_AP) | 600 BIT(NL80211_IFTYPE_P2P_GO) | 601 BIT(NL80211_IFTYPE_P2P_CLIENT) | 602 BIT(NL80211_IFTYPE_MESH_POINT); 603 604 hw->wiphy->iface_combinations = &if_comb; 605 hw->wiphy->n_iface_combinations = 1; 606 607 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; 608 609 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN | 610 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL; 611 612 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS; 613 614 hw->queues = 4; 615 hw->max_listen_interval = 1; 616 617 hw->vif_data_size = sizeof(struct ath9k_htc_vif); 618 hw->sta_data_size = sizeof(struct ath9k_htc_sta); 619 620 /* tx_frame_hdr is larger than tx_mgmt_hdr anyway */ 621 hw->extra_tx_headroom = sizeof(struct tx_frame_hdr) + 622 sizeof(struct htc_frame_hdr) + 4; 623 624 if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_2GHZ) 625 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = 626 &common->sbands[IEEE80211_BAND_2GHZ]; 627 if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_5GHZ) 628 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = 629 &common->sbands[IEEE80211_BAND_5GHZ]; 630 631 ath9k_cmn_reload_chainmask(ah); 632 633 pBase = ath9k_htc_get_eeprom_base(priv); 634 if (pBase) { 635 hw->wiphy->available_antennas_rx = pBase->rxMask; 636 hw->wiphy->available_antennas_tx = pBase->txMask; 637 } 638 639 SET_IEEE80211_PERM_ADDR(hw, common->macaddr); 640 } 641 642 static int ath9k_init_firmware_version(struct ath9k_htc_priv *priv) 643 { 644 struct ieee80211_hw *hw = priv->hw; 645 struct wmi_fw_version cmd_rsp; 646 int ret; 647 648 memset(&cmd_rsp, 0, sizeof(cmd_rsp)); 649 650 WMI_CMD(WMI_GET_FW_VERSION); 651 if (ret) 652 return -EINVAL; 653 654 priv->fw_version_major = be16_to_cpu(cmd_rsp.major); 655 priv->fw_version_minor = be16_to_cpu(cmd_rsp.minor); 656 657 snprintf(hw->wiphy->fw_version, sizeof(hw->wiphy->fw_version), "%d.%d", 658 priv->fw_version_major, 659 priv->fw_version_minor); 660 661 dev_info(priv->dev, "ath9k_htc: FW Version: %d.%d\n", 662 priv->fw_version_major, 663 priv->fw_version_minor); 664 665 /* 666 * Check if the available FW matches the driver's 667 * required version. 668 */ 669 if (priv->fw_version_major != MAJOR_VERSION_REQ || 670 priv->fw_version_minor < MINOR_VERSION_REQ) { 671 dev_err(priv->dev, "ath9k_htc: Please upgrade to FW version %d.%d\n", 672 MAJOR_VERSION_REQ, MINOR_VERSION_REQ); 673 return -EINVAL; 674 } 675 676 return 0; 677 } 678 679 static int ath9k_init_device(struct ath9k_htc_priv *priv, 680 u16 devid, char *product, u32 drv_info) 681 { 682 struct ieee80211_hw *hw = priv->hw; 683 struct ath_common *common; 684 struct ath_hw *ah; 685 int error = 0; 686 struct ath_regulatory *reg; 687 char hw_name[64]; 688 689 /* Bring up device */ 690 error = ath9k_init_priv(priv, devid, product, drv_info); 691 if (error != 0) 692 goto err_init; 693 694 ah = priv->ah; 695 common = ath9k_hw_common(ah); 696 ath9k_set_hw_capab(priv, hw); 697 698 error = ath9k_init_firmware_version(priv); 699 if (error != 0) 700 goto err_fw; 701 702 /* Initialize regulatory */ 703 error = ath_regd_init(&common->regulatory, priv->hw->wiphy, 704 ath9k_reg_notifier); 705 if (error) 706 goto err_regd; 707 708 reg = &common->regulatory; 709 710 /* Setup TX */ 711 error = ath9k_tx_init(priv); 712 if (error != 0) 713 goto err_tx; 714 715 /* Setup RX */ 716 error = ath9k_rx_init(priv); 717 if (error != 0) 718 goto err_rx; 719 720 ath9k_hw_disable(priv->ah); 721 #ifdef CONFIG_MAC80211_LEDS 722 /* must be initialized before ieee80211_register_hw */ 723 priv->led_cdev.default_trigger = ieee80211_create_tpt_led_trigger(priv->hw, 724 IEEE80211_TPT_LEDTRIG_FL_RADIO, ath9k_htc_tpt_blink, 725 ARRAY_SIZE(ath9k_htc_tpt_blink)); 726 #endif 727 728 /* Register with mac80211 */ 729 error = ieee80211_register_hw(hw); 730 if (error) 731 goto err_register; 732 733 /* Handle world regulatory */ 734 if (!ath_is_world_regd(reg)) { 735 error = regulatory_hint(hw->wiphy, reg->alpha2); 736 if (error) 737 goto err_world; 738 } 739 740 error = ath9k_htc_init_debug(priv->ah); 741 if (error) { 742 ath_err(common, "Unable to create debugfs files\n"); 743 goto err_world; 744 } 745 746 ath_dbg(common, CONFIG, 747 "WMI:%d, BCN:%d, CAB:%d, UAPSD:%d, MGMT:%d, BE:%d, BK:%d, VI:%d, VO:%d\n", 748 priv->wmi_cmd_ep, 749 priv->beacon_ep, 750 priv->cab_ep, 751 priv->uapsd_ep, 752 priv->mgmt_ep, 753 priv->data_be_ep, 754 priv->data_bk_ep, 755 priv->data_vi_ep, 756 priv->data_vo_ep); 757 758 ath9k_hw_name(priv->ah, hw_name, sizeof(hw_name)); 759 wiphy_info(hw->wiphy, "%s\n", hw_name); 760 761 ath9k_init_leds(priv); 762 ath9k_start_rfkill_poll(priv); 763 764 return 0; 765 766 err_world: 767 ieee80211_unregister_hw(hw); 768 err_register: 769 ath9k_rx_cleanup(priv); 770 err_rx: 771 ath9k_tx_cleanup(priv); 772 err_tx: 773 /* Nothing */ 774 err_regd: 775 /* Nothing */ 776 err_fw: 777 ath9k_deinit_priv(priv); 778 err_init: 779 return error; 780 } 781 782 int ath9k_htc_probe_device(struct htc_target *htc_handle, struct device *dev, 783 u16 devid, char *product, u32 drv_info) 784 { 785 struct ieee80211_hw *hw; 786 struct ath9k_htc_priv *priv; 787 int ret; 788 789 hw = ieee80211_alloc_hw(sizeof(struct ath9k_htc_priv), &ath9k_htc_ops); 790 if (!hw) 791 return -ENOMEM; 792 793 priv = hw->priv; 794 priv->hw = hw; 795 priv->htc = htc_handle; 796 priv->dev = dev; 797 htc_handle->drv_priv = priv; 798 SET_IEEE80211_DEV(hw, priv->dev); 799 800 ret = ath9k_htc_wait_for_target(priv); 801 if (ret) 802 goto err_free; 803 804 priv->wmi = ath9k_init_wmi(priv); 805 if (!priv->wmi) { 806 ret = -EINVAL; 807 goto err_free; 808 } 809 810 ret = ath9k_init_htc_services(priv, devid, drv_info); 811 if (ret) 812 goto err_init; 813 814 ret = ath9k_init_device(priv, devid, product, drv_info); 815 if (ret) 816 goto err_init; 817 818 return 0; 819 820 err_init: 821 ath9k_deinit_wmi(priv); 822 err_free: 823 ieee80211_free_hw(hw); 824 return ret; 825 } 826 827 void ath9k_htc_disconnect_device(struct htc_target *htc_handle, bool hotunplug) 828 { 829 if (htc_handle->drv_priv) { 830 831 /* Check if the device has been yanked out. */ 832 if (hotunplug) 833 htc_handle->drv_priv->ah->ah_flags |= AH_UNPLUGGED; 834 835 ath9k_deinit_device(htc_handle->drv_priv); 836 ath9k_deinit_wmi(htc_handle->drv_priv); 837 ieee80211_free_hw(htc_handle->drv_priv->hw); 838 } 839 } 840 841 #ifdef CONFIG_PM 842 843 void ath9k_htc_suspend(struct htc_target *htc_handle) 844 { 845 ath9k_htc_setpower(htc_handle->drv_priv, ATH9K_PM_FULL_SLEEP); 846 } 847 848 int ath9k_htc_resume(struct htc_target *htc_handle) 849 { 850 struct ath9k_htc_priv *priv = htc_handle->drv_priv; 851 int ret; 852 853 ret = ath9k_htc_wait_for_target(priv); 854 if (ret) 855 return ret; 856 857 ret = ath9k_init_htc_services(priv, priv->ah->hw_version.devid, 858 priv->ah->hw_version.usbdev); 859 ath9k_configure_leds(priv); 860 861 return ret; 862 } 863 #endif 864 865 static int __init ath9k_htc_init(void) 866 { 867 if (ath9k_hif_usb_init() < 0) { 868 pr_err("No USB devices found, driver not installed\n"); 869 return -ENODEV; 870 } 871 872 return 0; 873 } 874 module_init(ath9k_htc_init); 875 876 static void __exit ath9k_htc_exit(void) 877 { 878 ath9k_hif_usb_exit(); 879 pr_info("Driver unloaded\n"); 880 } 881 module_exit(ath9k_htc_exit); 882