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 int ath9k_htc_led_blink = 1; 43 module_param_named(blink, ath9k_htc_led_blink, int, 0444); 44 MODULE_PARM_DESC(blink, "Enable LED blink on activity"); 45 46 static const struct ieee80211_tpt_blink ath9k_htc_tpt_blink[] = { 47 { .throughput = 0 * 1024, .blink_time = 334 }, 48 { .throughput = 1 * 1024, .blink_time = 260 }, 49 { .throughput = 5 * 1024, .blink_time = 220 }, 50 { .throughput = 10 * 1024, .blink_time = 190 }, 51 { .throughput = 20 * 1024, .blink_time = 170 }, 52 { .throughput = 50 * 1024, .blink_time = 150 }, 53 { .throughput = 70 * 1024, .blink_time = 130 }, 54 { .throughput = 100 * 1024, .blink_time = 110 }, 55 { .throughput = 200 * 1024, .blink_time = 80 }, 56 { .throughput = 300 * 1024, .blink_time = 50 }, 57 }; 58 #endif 59 60 static void ath9k_htc_op_ps_wakeup(struct ath_common *common) 61 { 62 ath9k_htc_ps_wakeup((struct ath9k_htc_priv *) common->priv); 63 } 64 65 static void ath9k_htc_op_ps_restore(struct ath_common *common) 66 { 67 ath9k_htc_ps_restore((struct ath9k_htc_priv *) common->priv); 68 } 69 70 static struct ath_ps_ops ath9k_htc_ps_ops = { 71 .wakeup = ath9k_htc_op_ps_wakeup, 72 .restore = ath9k_htc_op_ps_restore, 73 }; 74 75 static int ath9k_htc_wait_for_target(struct ath9k_htc_priv *priv) 76 { 77 int time_left; 78 79 if (atomic_read(&priv->htc->tgt_ready) > 0) { 80 atomic_dec(&priv->htc->tgt_ready); 81 return 0; 82 } 83 84 /* Firmware can take up to 50ms to get ready, to be safe use 1 second */ 85 time_left = wait_for_completion_timeout(&priv->htc->target_wait, HZ); 86 if (!time_left) { 87 dev_err(priv->dev, "ath9k_htc: Target is unresponsive\n"); 88 return -ETIMEDOUT; 89 } 90 91 atomic_dec(&priv->htc->tgt_ready); 92 93 return 0; 94 } 95 96 static void ath9k_deinit_priv(struct ath9k_htc_priv *priv) 97 { 98 ath9k_hw_deinit(priv->ah); 99 kfree(priv->ah); 100 priv->ah = NULL; 101 } 102 103 static void ath9k_deinit_device(struct ath9k_htc_priv *priv) 104 { 105 struct ieee80211_hw *hw = priv->hw; 106 107 wiphy_rfkill_stop_polling(hw->wiphy); 108 ath9k_deinit_leds(priv); 109 ath9k_htc_deinit_debug(priv); 110 ieee80211_unregister_hw(hw); 111 ath9k_rx_cleanup(priv); 112 ath9k_tx_cleanup(priv); 113 ath9k_deinit_priv(priv); 114 } 115 116 static inline int ath9k_htc_connect_svc(struct ath9k_htc_priv *priv, 117 u16 service_id, 118 void (*tx) (void *, 119 struct sk_buff *, 120 enum htc_endpoint_id, 121 bool txok), 122 enum htc_endpoint_id *ep_id) 123 { 124 struct htc_service_connreq req; 125 126 memset(&req, 0, sizeof(struct htc_service_connreq)); 127 128 req.service_id = service_id; 129 req.ep_callbacks.priv = priv; 130 req.ep_callbacks.rx = ath9k_htc_rxep; 131 req.ep_callbacks.tx = tx; 132 133 return htc_connect_service(priv->htc, &req, ep_id); 134 } 135 136 static int ath9k_init_htc_services(struct ath9k_htc_priv *priv, u16 devid, 137 u32 drv_info) 138 { 139 int ret; 140 141 /* WMI CMD*/ 142 ret = ath9k_wmi_connect(priv->htc, priv->wmi, &priv->wmi_cmd_ep); 143 if (ret) 144 goto err; 145 146 /* Beacon */ 147 ret = ath9k_htc_connect_svc(priv, WMI_BEACON_SVC, ath9k_htc_beaconep, 148 &priv->beacon_ep); 149 if (ret) 150 goto err; 151 152 /* CAB */ 153 ret = ath9k_htc_connect_svc(priv, WMI_CAB_SVC, ath9k_htc_txep, 154 &priv->cab_ep); 155 if (ret) 156 goto err; 157 158 159 /* UAPSD */ 160 ret = ath9k_htc_connect_svc(priv, WMI_UAPSD_SVC, ath9k_htc_txep, 161 &priv->uapsd_ep); 162 if (ret) 163 goto err; 164 165 /* MGMT */ 166 ret = ath9k_htc_connect_svc(priv, WMI_MGMT_SVC, ath9k_htc_txep, 167 &priv->mgmt_ep); 168 if (ret) 169 goto err; 170 171 /* DATA BE */ 172 ret = ath9k_htc_connect_svc(priv, WMI_DATA_BE_SVC, ath9k_htc_txep, 173 &priv->data_be_ep); 174 if (ret) 175 goto err; 176 177 /* DATA BK */ 178 ret = ath9k_htc_connect_svc(priv, WMI_DATA_BK_SVC, ath9k_htc_txep, 179 &priv->data_bk_ep); 180 if (ret) 181 goto err; 182 183 /* DATA VI */ 184 ret = ath9k_htc_connect_svc(priv, WMI_DATA_VI_SVC, ath9k_htc_txep, 185 &priv->data_vi_ep); 186 if (ret) 187 goto err; 188 189 /* DATA VO */ 190 ret = ath9k_htc_connect_svc(priv, WMI_DATA_VO_SVC, ath9k_htc_txep, 191 &priv->data_vo_ep); 192 if (ret) 193 goto err; 194 195 /* 196 * Setup required credits before initializing HTC. 197 * This is a bit hacky, but, since queuing is done in 198 * the HIF layer, shouldn't matter much. 199 */ 200 201 if (IS_AR7010_DEVICE(drv_info)) 202 priv->htc->credits = 45; 203 else 204 priv->htc->credits = 33; 205 206 ret = htc_init(priv->htc); 207 if (ret) 208 goto err; 209 210 dev_info(priv->dev, "ath9k_htc: HTC initialized with %d credits\n", 211 priv->htc->credits); 212 213 return 0; 214 215 err: 216 dev_err(priv->dev, "ath9k_htc: Unable to initialize HTC services\n"); 217 return ret; 218 } 219 220 static void ath9k_reg_notifier(struct wiphy *wiphy, 221 struct regulatory_request *request) 222 { 223 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); 224 struct ath9k_htc_priv *priv = hw->priv; 225 226 ath_reg_notifier_apply(wiphy, request, 227 ath9k_hw_regulatory(priv->ah)); 228 } 229 230 static unsigned int ath9k_regread(void *hw_priv, u32 reg_offset) 231 { 232 struct ath_hw *ah = (struct ath_hw *) hw_priv; 233 struct ath_common *common = ath9k_hw_common(ah); 234 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv; 235 __be32 val, reg = cpu_to_be32(reg_offset); 236 int r; 237 238 r = ath9k_wmi_cmd(priv->wmi, WMI_REG_READ_CMDID, 239 (u8 *) ®, sizeof(reg), 240 (u8 *) &val, sizeof(val), 241 100); 242 if (unlikely(r)) { 243 ath_dbg(common, WMI, "REGISTER READ FAILED: (0x%04x, %d)\n", 244 reg_offset, r); 245 return -EIO; 246 } 247 248 return be32_to_cpu(val); 249 } 250 251 static void ath9k_multi_regread(void *hw_priv, u32 *addr, 252 u32 *val, u16 count) 253 { 254 struct ath_hw *ah = (struct ath_hw *) hw_priv; 255 struct ath_common *common = ath9k_hw_common(ah); 256 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv; 257 __be32 tmpaddr[8]; 258 __be32 tmpval[8]; 259 int i, ret; 260 261 for (i = 0; i < count; i++) { 262 tmpaddr[i] = cpu_to_be32(addr[i]); 263 } 264 265 ret = ath9k_wmi_cmd(priv->wmi, WMI_REG_READ_CMDID, 266 (u8 *)tmpaddr , sizeof(u32) * count, 267 (u8 *)tmpval, sizeof(u32) * count, 268 100); 269 if (unlikely(ret)) { 270 ath_dbg(common, WMI, 271 "Multiple REGISTER READ FAILED (count: %d)\n", count); 272 } 273 274 for (i = 0; i < count; i++) { 275 val[i] = be32_to_cpu(tmpval[i]); 276 } 277 } 278 279 static void ath9k_regwrite_multi(struct ath_common *common) 280 { 281 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv; 282 u32 rsp_status; 283 int r; 284 285 r = ath9k_wmi_cmd(priv->wmi, WMI_REG_WRITE_CMDID, 286 (u8 *) &priv->wmi->multi_write, 287 sizeof(struct register_write) * priv->wmi->multi_write_idx, 288 (u8 *) &rsp_status, sizeof(rsp_status), 289 100); 290 if (unlikely(r)) { 291 ath_dbg(common, WMI, 292 "REGISTER WRITE FAILED, multi len: %d\n", 293 priv->wmi->multi_write_idx); 294 } 295 priv->wmi->multi_write_idx = 0; 296 } 297 298 static void ath9k_regwrite_single(void *hw_priv, u32 val, u32 reg_offset) 299 { 300 struct ath_hw *ah = (struct ath_hw *) hw_priv; 301 struct ath_common *common = ath9k_hw_common(ah); 302 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv; 303 const __be32 buf[2] = { 304 cpu_to_be32(reg_offset), 305 cpu_to_be32(val), 306 }; 307 int r; 308 309 r = ath9k_wmi_cmd(priv->wmi, WMI_REG_WRITE_CMDID, 310 (u8 *) &buf, sizeof(buf), 311 (u8 *) &val, sizeof(val), 312 100); 313 if (unlikely(r)) { 314 ath_dbg(common, WMI, "REGISTER WRITE FAILED:(0x%04x, %d)\n", 315 reg_offset, r); 316 } 317 } 318 319 static void ath9k_regwrite_buffer(void *hw_priv, u32 val, u32 reg_offset) 320 { 321 struct ath_hw *ah = (struct ath_hw *) hw_priv; 322 struct ath_common *common = ath9k_hw_common(ah); 323 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv; 324 325 mutex_lock(&priv->wmi->multi_write_mutex); 326 327 /* Store the register/value */ 328 priv->wmi->multi_write[priv->wmi->multi_write_idx].reg = 329 cpu_to_be32(reg_offset); 330 priv->wmi->multi_write[priv->wmi->multi_write_idx].val = 331 cpu_to_be32(val); 332 333 priv->wmi->multi_write_idx++; 334 335 /* If the buffer is full, send it out. */ 336 if (priv->wmi->multi_write_idx == MAX_CMD_NUMBER) 337 ath9k_regwrite_multi(common); 338 339 mutex_unlock(&priv->wmi->multi_write_mutex); 340 } 341 342 static void ath9k_regwrite(void *hw_priv, u32 val, u32 reg_offset) 343 { 344 struct ath_hw *ah = (struct ath_hw *) hw_priv; 345 struct ath_common *common = ath9k_hw_common(ah); 346 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv; 347 348 if (atomic_read(&priv->wmi->mwrite_cnt)) 349 ath9k_regwrite_buffer(hw_priv, val, reg_offset); 350 else 351 ath9k_regwrite_single(hw_priv, val, reg_offset); 352 } 353 354 static void ath9k_enable_regwrite_buffer(void *hw_priv) 355 { 356 struct ath_hw *ah = (struct ath_hw *) hw_priv; 357 struct ath_common *common = ath9k_hw_common(ah); 358 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv; 359 360 atomic_inc(&priv->wmi->mwrite_cnt); 361 } 362 363 static void ath9k_regwrite_flush(void *hw_priv) 364 { 365 struct ath_hw *ah = (struct ath_hw *) hw_priv; 366 struct ath_common *common = ath9k_hw_common(ah); 367 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv; 368 369 atomic_dec(&priv->wmi->mwrite_cnt); 370 371 mutex_lock(&priv->wmi->multi_write_mutex); 372 373 if (priv->wmi->multi_write_idx) 374 ath9k_regwrite_multi(common); 375 376 mutex_unlock(&priv->wmi->multi_write_mutex); 377 } 378 379 static u32 ath9k_reg_rmw(void *hw_priv, u32 reg_offset, u32 set, u32 clr) 380 { 381 u32 val; 382 383 val = ath9k_regread(hw_priv, reg_offset); 384 val &= ~clr; 385 val |= set; 386 ath9k_regwrite(hw_priv, val, reg_offset); 387 return val; 388 } 389 390 static void ath_usb_read_cachesize(struct ath_common *common, int *csz) 391 { 392 *csz = L1_CACHE_BYTES >> 2; 393 } 394 395 static bool ath_usb_eeprom_read(struct ath_common *common, u32 off, u16 *data) 396 { 397 struct ath_hw *ah = (struct ath_hw *) common->ah; 398 399 (void)REG_READ(ah, AR5416_EEPROM_OFFSET + (off << AR5416_EEPROM_S)); 400 401 if (!ath9k_hw_wait(ah, 402 AR_EEPROM_STATUS_DATA, 403 AR_EEPROM_STATUS_DATA_BUSY | 404 AR_EEPROM_STATUS_DATA_PROT_ACCESS, 0, 405 AH_WAIT_TIMEOUT)) 406 return false; 407 408 *data = MS(REG_READ(ah, AR_EEPROM_STATUS_DATA), 409 AR_EEPROM_STATUS_DATA_VAL); 410 411 return true; 412 } 413 414 static const struct ath_bus_ops ath9k_usb_bus_ops = { 415 .ath_bus_type = ATH_USB, 416 .read_cachesize = ath_usb_read_cachesize, 417 .eeprom_read = ath_usb_eeprom_read, 418 }; 419 420 static int ath9k_init_queues(struct ath9k_htc_priv *priv) 421 { 422 struct ath_common *common = ath9k_hw_common(priv->ah); 423 int i; 424 425 for (i = 0; i < ARRAY_SIZE(priv->hwq_map); i++) 426 priv->hwq_map[i] = -1; 427 428 priv->beacon.beaconq = ath9k_hw_beaconq_setup(priv->ah); 429 if (priv->beacon.beaconq == -1) { 430 ath_err(common, "Unable to setup BEACON xmit queue\n"); 431 goto err; 432 } 433 434 priv->cabq = ath9k_htc_cabq_setup(priv); 435 if (priv->cabq == -1) { 436 ath_err(common, "Unable to setup CAB xmit queue\n"); 437 goto err; 438 } 439 440 if (!ath9k_htc_txq_setup(priv, IEEE80211_AC_BE)) { 441 ath_err(common, "Unable to setup xmit queue for BE traffic\n"); 442 goto err; 443 } 444 445 if (!ath9k_htc_txq_setup(priv, IEEE80211_AC_BK)) { 446 ath_err(common, "Unable to setup xmit queue for BK traffic\n"); 447 goto err; 448 } 449 if (!ath9k_htc_txq_setup(priv, IEEE80211_AC_VI)) { 450 ath_err(common, "Unable to setup xmit queue for VI traffic\n"); 451 goto err; 452 } 453 if (!ath9k_htc_txq_setup(priv, IEEE80211_AC_VO)) { 454 ath_err(common, "Unable to setup xmit queue for VO traffic\n"); 455 goto err; 456 } 457 458 return 0; 459 460 err: 461 return -EINVAL; 462 } 463 464 static void ath9k_init_misc(struct ath9k_htc_priv *priv) 465 { 466 struct ath_common *common = ath9k_hw_common(priv->ah); 467 468 memcpy(common->bssidmask, ath_bcast_mac, ETH_ALEN); 469 470 common->last_rssi = ATH_RSSI_DUMMY_MARKER; 471 priv->ah->opmode = NL80211_IFTYPE_STATION; 472 473 priv->spec_priv.ah = priv->ah; 474 priv->spec_priv.spec_config.enabled = 0; 475 priv->spec_priv.spec_config.short_repeat = false; 476 priv->spec_priv.spec_config.count = 8; 477 priv->spec_priv.spec_config.endless = false; 478 priv->spec_priv.spec_config.period = 0x12; 479 priv->spec_priv.spec_config.fft_period = 0x02; 480 } 481 482 static int ath9k_init_priv(struct ath9k_htc_priv *priv, 483 u16 devid, char *product, 484 u32 drv_info) 485 { 486 struct ath_hw *ah = NULL; 487 struct ath_common *common; 488 int i, ret = 0, csz = 0; 489 490 ah = kzalloc(sizeof(struct ath_hw), GFP_KERNEL); 491 if (!ah) 492 return -ENOMEM; 493 494 ah->dev = priv->dev; 495 ah->hw = priv->hw; 496 ah->hw_version.devid = devid; 497 ah->hw_version.usbdev = drv_info; 498 ah->ah_flags |= AH_USE_EEPROM; 499 ah->reg_ops.read = ath9k_regread; 500 ah->reg_ops.multi_read = ath9k_multi_regread; 501 ah->reg_ops.write = ath9k_regwrite; 502 ah->reg_ops.enable_write_buffer = ath9k_enable_regwrite_buffer; 503 ah->reg_ops.write_flush = ath9k_regwrite_flush; 504 ah->reg_ops.rmw = ath9k_reg_rmw; 505 priv->ah = ah; 506 507 common = ath9k_hw_common(ah); 508 common->ops = &ah->reg_ops; 509 common->ps_ops = &ath9k_htc_ps_ops; 510 common->bus_ops = &ath9k_usb_bus_ops; 511 common->ah = ah; 512 common->hw = priv->hw; 513 common->priv = priv; 514 common->debug_mask = ath9k_debug; 515 common->btcoex_enabled = ath9k_htc_btcoex_enable == 1; 516 set_bit(ATH_OP_INVALID, &common->op_flags); 517 518 spin_lock_init(&priv->beacon_lock); 519 spin_lock_init(&priv->tx.tx_lock); 520 mutex_init(&priv->mutex); 521 mutex_init(&priv->htc_pm_lock); 522 tasklet_init(&priv->rx_tasklet, ath9k_rx_tasklet, 523 (unsigned long)priv); 524 tasklet_init(&priv->tx_failed_tasklet, ath9k_tx_failed_tasklet, 525 (unsigned long)priv); 526 INIT_DELAYED_WORK(&priv->ani_work, ath9k_htc_ani_work); 527 INIT_WORK(&priv->ps_work, ath9k_ps_work); 528 INIT_WORK(&priv->fatal_work, ath9k_fatal_work); 529 setup_timer(&priv->tx.cleanup_timer, ath9k_htc_tx_cleanup_timer, 530 (unsigned long)priv); 531 532 /* 533 * Cache line size is used to size and align various 534 * structures used to communicate with the hardware. 535 */ 536 ath_read_cachesize(common, &csz); 537 common->cachelsz = csz << 2; /* convert to bytes */ 538 539 ret = ath9k_hw_init(ah); 540 if (ret) { 541 ath_err(common, 542 "Unable to initialize hardware; initialization status: %d\n", 543 ret); 544 goto err_hw; 545 } 546 547 ret = ath9k_init_queues(priv); 548 if (ret) 549 goto err_queues; 550 551 for (i = 0; i < ATH9K_HTC_MAX_BCN_VIF; i++) 552 priv->beacon.bslot[i] = NULL; 553 priv->beacon.slottime = ATH9K_SLOT_TIME_9; 554 555 ath9k_cmn_init_channels_rates(common); 556 ath9k_cmn_init_crypto(ah); 557 ath9k_init_misc(priv); 558 ath9k_htc_init_btcoex(priv, product); 559 560 return 0; 561 562 err_queues: 563 ath9k_hw_deinit(ah); 564 err_hw: 565 566 kfree(ah); 567 priv->ah = NULL; 568 569 return ret; 570 } 571 572 static const struct ieee80211_iface_limit if_limits[] = { 573 { .max = 2, .types = BIT(NL80211_IFTYPE_STATION) | 574 BIT(NL80211_IFTYPE_P2P_CLIENT) }, 575 { .max = 2, .types = BIT(NL80211_IFTYPE_AP) | 576 #ifdef CONFIG_MAC80211_MESH 577 BIT(NL80211_IFTYPE_MESH_POINT) | 578 #endif 579 BIT(NL80211_IFTYPE_P2P_GO) }, 580 }; 581 582 static const struct ieee80211_iface_combination if_comb = { 583 .limits = if_limits, 584 .n_limits = ARRAY_SIZE(if_limits), 585 .max_interfaces = 2, 586 .num_different_channels = 1, 587 }; 588 589 static void ath9k_set_hw_capab(struct ath9k_htc_priv *priv, 590 struct ieee80211_hw *hw) 591 { 592 struct ath_hw *ah = priv->ah; 593 struct ath_common *common = ath9k_hw_common(priv->ah); 594 struct base_eep_header *pBase; 595 596 hw->flags = IEEE80211_HW_SIGNAL_DBM | 597 IEEE80211_HW_AMPDU_AGGREGATION | 598 IEEE80211_HW_SPECTRUM_MGMT | 599 IEEE80211_HW_HAS_RATE_CONTROL | 600 IEEE80211_HW_RX_INCLUDES_FCS | 601 IEEE80211_HW_PS_NULLFUNC_STACK | 602 IEEE80211_HW_REPORTS_TX_ACK_STATUS | 603 IEEE80211_HW_MFP_CAPABLE | 604 IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING; 605 606 if (ath9k_ps_enable) 607 hw->flags |= IEEE80211_HW_SUPPORTS_PS; 608 609 hw->wiphy->interface_modes = 610 BIT(NL80211_IFTYPE_STATION) | 611 BIT(NL80211_IFTYPE_ADHOC) | 612 BIT(NL80211_IFTYPE_AP) | 613 BIT(NL80211_IFTYPE_P2P_GO) | 614 BIT(NL80211_IFTYPE_P2P_CLIENT) | 615 BIT(NL80211_IFTYPE_MESH_POINT); 616 617 hw->wiphy->iface_combinations = &if_comb; 618 hw->wiphy->n_iface_combinations = 1; 619 620 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; 621 622 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN | 623 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL; 624 625 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS; 626 627 hw->queues = 4; 628 hw->max_listen_interval = 1; 629 630 hw->vif_data_size = sizeof(struct ath9k_htc_vif); 631 hw->sta_data_size = sizeof(struct ath9k_htc_sta); 632 633 /* tx_frame_hdr is larger than tx_mgmt_hdr anyway */ 634 hw->extra_tx_headroom = sizeof(struct tx_frame_hdr) + 635 sizeof(struct htc_frame_hdr) + 4; 636 637 if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_2GHZ) 638 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = 639 &common->sbands[IEEE80211_BAND_2GHZ]; 640 if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_5GHZ) 641 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = 642 &common->sbands[IEEE80211_BAND_5GHZ]; 643 644 ath9k_cmn_reload_chainmask(ah); 645 646 pBase = ath9k_htc_get_eeprom_base(priv); 647 if (pBase) { 648 hw->wiphy->available_antennas_rx = pBase->rxMask; 649 hw->wiphy->available_antennas_tx = pBase->txMask; 650 } 651 652 SET_IEEE80211_PERM_ADDR(hw, common->macaddr); 653 } 654 655 static int ath9k_init_firmware_version(struct ath9k_htc_priv *priv) 656 { 657 struct ieee80211_hw *hw = priv->hw; 658 struct wmi_fw_version cmd_rsp; 659 int ret; 660 661 memset(&cmd_rsp, 0, sizeof(cmd_rsp)); 662 663 WMI_CMD(WMI_GET_FW_VERSION); 664 if (ret) 665 return -EINVAL; 666 667 priv->fw_version_major = be16_to_cpu(cmd_rsp.major); 668 priv->fw_version_minor = be16_to_cpu(cmd_rsp.minor); 669 670 snprintf(hw->wiphy->fw_version, sizeof(hw->wiphy->fw_version), "%d.%d", 671 priv->fw_version_major, 672 priv->fw_version_minor); 673 674 dev_info(priv->dev, "ath9k_htc: FW Version: %d.%d\n", 675 priv->fw_version_major, 676 priv->fw_version_minor); 677 678 /* 679 * Check if the available FW matches the driver's 680 * required version. 681 */ 682 if (priv->fw_version_major != MAJOR_VERSION_REQ || 683 priv->fw_version_minor < MINOR_VERSION_REQ) { 684 dev_err(priv->dev, "ath9k_htc: Please upgrade to FW version %d.%d\n", 685 MAJOR_VERSION_REQ, MINOR_VERSION_REQ); 686 return -EINVAL; 687 } 688 689 return 0; 690 } 691 692 static int ath9k_init_device(struct ath9k_htc_priv *priv, 693 u16 devid, char *product, u32 drv_info) 694 { 695 struct ieee80211_hw *hw = priv->hw; 696 struct ath_common *common; 697 struct ath_hw *ah; 698 int error = 0; 699 struct ath_regulatory *reg; 700 char hw_name[64]; 701 702 /* Bring up device */ 703 error = ath9k_init_priv(priv, devid, product, drv_info); 704 if (error != 0) 705 goto err_init; 706 707 ah = priv->ah; 708 common = ath9k_hw_common(ah); 709 ath9k_set_hw_capab(priv, hw); 710 711 error = ath9k_init_firmware_version(priv); 712 if (error != 0) 713 goto err_fw; 714 715 /* Initialize regulatory */ 716 error = ath_regd_init(&common->regulatory, priv->hw->wiphy, 717 ath9k_reg_notifier); 718 if (error) 719 goto err_regd; 720 721 reg = &common->regulatory; 722 723 /* Setup TX */ 724 error = ath9k_tx_init(priv); 725 if (error != 0) 726 goto err_tx; 727 728 /* Setup RX */ 729 error = ath9k_rx_init(priv); 730 if (error != 0) 731 goto err_rx; 732 733 ath9k_hw_disable(priv->ah); 734 #ifdef CONFIG_MAC80211_LEDS 735 /* must be initialized before ieee80211_register_hw */ 736 priv->led_cdev.default_trigger = ieee80211_create_tpt_led_trigger(priv->hw, 737 IEEE80211_TPT_LEDTRIG_FL_RADIO, ath9k_htc_tpt_blink, 738 ARRAY_SIZE(ath9k_htc_tpt_blink)); 739 #endif 740 741 /* Register with mac80211 */ 742 error = ieee80211_register_hw(hw); 743 if (error) 744 goto err_register; 745 746 /* Handle world regulatory */ 747 if (!ath_is_world_regd(reg)) { 748 error = regulatory_hint(hw->wiphy, reg->alpha2); 749 if (error) 750 goto err_world; 751 } 752 753 error = ath9k_htc_init_debug(priv->ah); 754 if (error) { 755 ath_err(common, "Unable to create debugfs files\n"); 756 goto err_world; 757 } 758 759 ath_dbg(common, CONFIG, 760 "WMI:%d, BCN:%d, CAB:%d, UAPSD:%d, MGMT:%d, BE:%d, BK:%d, VI:%d, VO:%d\n", 761 priv->wmi_cmd_ep, 762 priv->beacon_ep, 763 priv->cab_ep, 764 priv->uapsd_ep, 765 priv->mgmt_ep, 766 priv->data_be_ep, 767 priv->data_bk_ep, 768 priv->data_vi_ep, 769 priv->data_vo_ep); 770 771 ath9k_hw_name(priv->ah, hw_name, sizeof(hw_name)); 772 wiphy_info(hw->wiphy, "%s\n", hw_name); 773 774 ath9k_init_leds(priv); 775 ath9k_start_rfkill_poll(priv); 776 777 return 0; 778 779 err_world: 780 ieee80211_unregister_hw(hw); 781 err_register: 782 ath9k_rx_cleanup(priv); 783 err_rx: 784 ath9k_tx_cleanup(priv); 785 err_tx: 786 /* Nothing */ 787 err_regd: 788 /* Nothing */ 789 err_fw: 790 ath9k_deinit_priv(priv); 791 err_init: 792 return error; 793 } 794 795 int ath9k_htc_probe_device(struct htc_target *htc_handle, struct device *dev, 796 u16 devid, char *product, u32 drv_info) 797 { 798 struct ieee80211_hw *hw; 799 struct ath9k_htc_priv *priv; 800 int ret; 801 802 hw = ieee80211_alloc_hw(sizeof(struct ath9k_htc_priv), &ath9k_htc_ops); 803 if (!hw) 804 return -ENOMEM; 805 806 priv = hw->priv; 807 priv->hw = hw; 808 priv->htc = htc_handle; 809 priv->dev = dev; 810 htc_handle->drv_priv = priv; 811 SET_IEEE80211_DEV(hw, priv->dev); 812 813 ret = ath9k_htc_wait_for_target(priv); 814 if (ret) 815 goto err_free; 816 817 priv->wmi = ath9k_init_wmi(priv); 818 if (!priv->wmi) { 819 ret = -EINVAL; 820 goto err_free; 821 } 822 823 ret = ath9k_init_htc_services(priv, devid, drv_info); 824 if (ret) 825 goto err_init; 826 827 ret = ath9k_init_device(priv, devid, product, drv_info); 828 if (ret) 829 goto err_init; 830 831 return 0; 832 833 err_init: 834 ath9k_deinit_wmi(priv); 835 err_free: 836 ieee80211_free_hw(hw); 837 return ret; 838 } 839 840 void ath9k_htc_disconnect_device(struct htc_target *htc_handle, bool hotunplug) 841 { 842 if (htc_handle->drv_priv) { 843 844 /* Check if the device has been yanked out. */ 845 if (hotunplug) 846 htc_handle->drv_priv->ah->ah_flags |= AH_UNPLUGGED; 847 848 ath9k_deinit_device(htc_handle->drv_priv); 849 ath9k_deinit_wmi(htc_handle->drv_priv); 850 ieee80211_free_hw(htc_handle->drv_priv->hw); 851 } 852 } 853 854 #ifdef CONFIG_PM 855 856 void ath9k_htc_suspend(struct htc_target *htc_handle) 857 { 858 ath9k_htc_setpower(htc_handle->drv_priv, ATH9K_PM_FULL_SLEEP); 859 } 860 861 int ath9k_htc_resume(struct htc_target *htc_handle) 862 { 863 struct ath9k_htc_priv *priv = htc_handle->drv_priv; 864 int ret; 865 866 ret = ath9k_htc_wait_for_target(priv); 867 if (ret) 868 return ret; 869 870 ret = ath9k_init_htc_services(priv, priv->ah->hw_version.devid, 871 priv->ah->hw_version.usbdev); 872 ath9k_configure_leds(priv); 873 874 return ret; 875 } 876 #endif 877 878 static int __init ath9k_htc_init(void) 879 { 880 if (ath9k_hif_usb_init() < 0) { 881 pr_err("No USB devices found, driver not installed\n"); 882 return -ENODEV; 883 } 884 885 return 0; 886 } 887 module_init(ath9k_htc_init); 888 889 static void __exit ath9k_htc_exit(void) 890 { 891 ath9k_hif_usb_exit(); 892 pr_info("Driver unloaded\n"); 893 } 894 module_exit(ath9k_htc_exit); 895