1 /* 2 * mac80211 glue code for mac80211 ST-Ericsson CW1200 drivers 3 * 4 * Copyright (c) 2010, ST-Ericsson 5 * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no> 6 * 7 * Based on: 8 * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net> 9 * Copyright (c) 2007-2009, Christian Lamparter <chunkeey@web.de> 10 * Copyright 2008, Johannes Berg <johannes@sipsolutions.net> 11 * 12 * Based on: 13 * - the islsm (softmac prism54) driver, which is: 14 * Copyright 2004-2006 Jean-Baptiste Note <jbnote@gmail.com>, et al. 15 * - stlc45xx driver 16 * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies). 17 * 18 * This program is free software; you can redistribute it and/or modify 19 * it under the terms of the GNU General Public License version 2 as 20 * published by the Free Software Foundation. 21 */ 22 23 #include <linux/module.h> 24 #include <linux/firmware.h> 25 #include <linux/etherdevice.h> 26 #include <linux/vmalloc.h> 27 #include <linux/random.h> 28 #include <linux/sched.h> 29 #include <net/mac80211.h> 30 31 #include "cw1200.h" 32 #include "txrx.h" 33 #include "hwbus.h" 34 #include "fwio.h" 35 #include "hwio.h" 36 #include "bh.h" 37 #include "sta.h" 38 #include "scan.h" 39 #include "debug.h" 40 #include "pm.h" 41 42 MODULE_AUTHOR("Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>"); 43 MODULE_DESCRIPTION("Softmac ST-Ericsson CW1200 common code"); 44 MODULE_LICENSE("GPL"); 45 MODULE_ALIAS("cw1200_core"); 46 47 /* Accept MAC address of the form macaddr=0x00,0x80,0xE1,0x30,0x40,0x50 */ 48 static u8 cw1200_mac_template[ETH_ALEN] = {0x02, 0x80, 0xe1, 0x00, 0x00, 0x00}; 49 module_param_array_named(macaddr, cw1200_mac_template, byte, NULL, 0444); 50 MODULE_PARM_DESC(macaddr, "Override platform_data MAC address"); 51 52 static char *cw1200_sdd_path; 53 module_param(cw1200_sdd_path, charp, 0644); 54 MODULE_PARM_DESC(cw1200_sdd_path, "Override platform_data SDD file"); 55 static int cw1200_refclk; 56 module_param(cw1200_refclk, int, 0644); 57 MODULE_PARM_DESC(cw1200_refclk, "Override platform_data reference clock"); 58 59 int cw1200_power_mode = wsm_power_mode_quiescent; 60 module_param(cw1200_power_mode, int, 0644); 61 MODULE_PARM_DESC(cw1200_power_mode, "WSM power mode. 0 == active, 1 == doze, 2 == quiescent (default)"); 62 63 #define RATETAB_ENT(_rate, _rateid, _flags) \ 64 { \ 65 .bitrate = (_rate), \ 66 .hw_value = (_rateid), \ 67 .flags = (_flags), \ 68 } 69 70 static struct ieee80211_rate cw1200_rates[] = { 71 RATETAB_ENT(10, 0, 0), 72 RATETAB_ENT(20, 1, 0), 73 RATETAB_ENT(55, 2, 0), 74 RATETAB_ENT(110, 3, 0), 75 RATETAB_ENT(60, 6, 0), 76 RATETAB_ENT(90, 7, 0), 77 RATETAB_ENT(120, 8, 0), 78 RATETAB_ENT(180, 9, 0), 79 RATETAB_ENT(240, 10, 0), 80 RATETAB_ENT(360, 11, 0), 81 RATETAB_ENT(480, 12, 0), 82 RATETAB_ENT(540, 13, 0), 83 }; 84 85 static struct ieee80211_rate cw1200_mcs_rates[] = { 86 RATETAB_ENT(65, 14, IEEE80211_TX_RC_MCS), 87 RATETAB_ENT(130, 15, IEEE80211_TX_RC_MCS), 88 RATETAB_ENT(195, 16, IEEE80211_TX_RC_MCS), 89 RATETAB_ENT(260, 17, IEEE80211_TX_RC_MCS), 90 RATETAB_ENT(390, 18, IEEE80211_TX_RC_MCS), 91 RATETAB_ENT(520, 19, IEEE80211_TX_RC_MCS), 92 RATETAB_ENT(585, 20, IEEE80211_TX_RC_MCS), 93 RATETAB_ENT(650, 21, IEEE80211_TX_RC_MCS), 94 }; 95 96 #define cw1200_a_rates (cw1200_rates + 4) 97 #define cw1200_a_rates_size (ARRAY_SIZE(cw1200_rates) - 4) 98 #define cw1200_g_rates (cw1200_rates + 0) 99 #define cw1200_g_rates_size (ARRAY_SIZE(cw1200_rates)) 100 #define cw1200_n_rates (cw1200_mcs_rates) 101 #define cw1200_n_rates_size (ARRAY_SIZE(cw1200_mcs_rates)) 102 103 104 #define CHAN2G(_channel, _freq, _flags) { \ 105 .band = NL80211_BAND_2GHZ, \ 106 .center_freq = (_freq), \ 107 .hw_value = (_channel), \ 108 .flags = (_flags), \ 109 .max_antenna_gain = 0, \ 110 .max_power = 30, \ 111 } 112 113 #define CHAN5G(_channel, _flags) { \ 114 .band = NL80211_BAND_5GHZ, \ 115 .center_freq = 5000 + (5 * (_channel)), \ 116 .hw_value = (_channel), \ 117 .flags = (_flags), \ 118 .max_antenna_gain = 0, \ 119 .max_power = 30, \ 120 } 121 122 static struct ieee80211_channel cw1200_2ghz_chantable[] = { 123 CHAN2G(1, 2412, 0), 124 CHAN2G(2, 2417, 0), 125 CHAN2G(3, 2422, 0), 126 CHAN2G(4, 2427, 0), 127 CHAN2G(5, 2432, 0), 128 CHAN2G(6, 2437, 0), 129 CHAN2G(7, 2442, 0), 130 CHAN2G(8, 2447, 0), 131 CHAN2G(9, 2452, 0), 132 CHAN2G(10, 2457, 0), 133 CHAN2G(11, 2462, 0), 134 CHAN2G(12, 2467, 0), 135 CHAN2G(13, 2472, 0), 136 CHAN2G(14, 2484, 0), 137 }; 138 139 static struct ieee80211_channel cw1200_5ghz_chantable[] = { 140 CHAN5G(34, 0), CHAN5G(36, 0), 141 CHAN5G(38, 0), CHAN5G(40, 0), 142 CHAN5G(42, 0), CHAN5G(44, 0), 143 CHAN5G(46, 0), CHAN5G(48, 0), 144 CHAN5G(52, 0), CHAN5G(56, 0), 145 CHAN5G(60, 0), CHAN5G(64, 0), 146 CHAN5G(100, 0), CHAN5G(104, 0), 147 CHAN5G(108, 0), CHAN5G(112, 0), 148 CHAN5G(116, 0), CHAN5G(120, 0), 149 CHAN5G(124, 0), CHAN5G(128, 0), 150 CHAN5G(132, 0), CHAN5G(136, 0), 151 CHAN5G(140, 0), CHAN5G(149, 0), 152 CHAN5G(153, 0), CHAN5G(157, 0), 153 CHAN5G(161, 0), CHAN5G(165, 0), 154 CHAN5G(184, 0), CHAN5G(188, 0), 155 CHAN5G(192, 0), CHAN5G(196, 0), 156 CHAN5G(200, 0), CHAN5G(204, 0), 157 CHAN5G(208, 0), CHAN5G(212, 0), 158 CHAN5G(216, 0), 159 }; 160 161 static struct ieee80211_supported_band cw1200_band_2ghz = { 162 .channels = cw1200_2ghz_chantable, 163 .n_channels = ARRAY_SIZE(cw1200_2ghz_chantable), 164 .bitrates = cw1200_g_rates, 165 .n_bitrates = cw1200_g_rates_size, 166 .ht_cap = { 167 .cap = IEEE80211_HT_CAP_GRN_FLD | 168 (1 << IEEE80211_HT_CAP_RX_STBC_SHIFT) | 169 IEEE80211_HT_CAP_MAX_AMSDU, 170 .ht_supported = 1, 171 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_8K, 172 .ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE, 173 .mcs = { 174 .rx_mask[0] = 0xFF, 175 .rx_highest = __cpu_to_le16(0x41), 176 .tx_params = IEEE80211_HT_MCS_TX_DEFINED, 177 }, 178 }, 179 }; 180 181 static struct ieee80211_supported_band cw1200_band_5ghz = { 182 .channels = cw1200_5ghz_chantable, 183 .n_channels = ARRAY_SIZE(cw1200_5ghz_chantable), 184 .bitrates = cw1200_a_rates, 185 .n_bitrates = cw1200_a_rates_size, 186 .ht_cap = { 187 .cap = IEEE80211_HT_CAP_GRN_FLD | 188 (1 << IEEE80211_HT_CAP_RX_STBC_SHIFT) | 189 IEEE80211_HT_CAP_MAX_AMSDU, 190 .ht_supported = 1, 191 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_8K, 192 .ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE, 193 .mcs = { 194 .rx_mask[0] = 0xFF, 195 .rx_highest = __cpu_to_le16(0x41), 196 .tx_params = IEEE80211_HT_MCS_TX_DEFINED, 197 }, 198 }, 199 }; 200 201 static const unsigned long cw1200_ttl[] = { 202 1 * HZ, /* VO */ 203 2 * HZ, /* VI */ 204 5 * HZ, /* BE */ 205 10 * HZ /* BK */ 206 }; 207 208 static const struct ieee80211_ops cw1200_ops = { 209 .start = cw1200_start, 210 .stop = cw1200_stop, 211 .add_interface = cw1200_add_interface, 212 .remove_interface = cw1200_remove_interface, 213 .change_interface = cw1200_change_interface, 214 .tx = cw1200_tx, 215 .hw_scan = cw1200_hw_scan, 216 .set_tim = cw1200_set_tim, 217 .sta_notify = cw1200_sta_notify, 218 .sta_add = cw1200_sta_add, 219 .sta_remove = cw1200_sta_remove, 220 .set_key = cw1200_set_key, 221 .set_rts_threshold = cw1200_set_rts_threshold, 222 .config = cw1200_config, 223 .bss_info_changed = cw1200_bss_info_changed, 224 .prepare_multicast = cw1200_prepare_multicast, 225 .configure_filter = cw1200_configure_filter, 226 .conf_tx = cw1200_conf_tx, 227 .get_stats = cw1200_get_stats, 228 .ampdu_action = cw1200_ampdu_action, 229 .flush = cw1200_flush, 230 #ifdef CONFIG_PM 231 .suspend = cw1200_wow_suspend, 232 .resume = cw1200_wow_resume, 233 #endif 234 /* Intentionally not offloaded: */ 235 /*.channel_switch = cw1200_channel_switch, */ 236 /*.remain_on_channel = cw1200_remain_on_channel, */ 237 /*.cancel_remain_on_channel = cw1200_cancel_remain_on_channel, */ 238 }; 239 240 static int cw1200_ba_rx_tids = -1; 241 static int cw1200_ba_tx_tids = -1; 242 module_param(cw1200_ba_rx_tids, int, 0644); 243 module_param(cw1200_ba_tx_tids, int, 0644); 244 MODULE_PARM_DESC(cw1200_ba_rx_tids, "Block ACK RX TIDs"); 245 MODULE_PARM_DESC(cw1200_ba_tx_tids, "Block ACK TX TIDs"); 246 247 #ifdef CONFIG_PM 248 static const struct wiphy_wowlan_support cw1200_wowlan_support = { 249 /* Support only for limited wowlan functionalities */ 250 .flags = WIPHY_WOWLAN_ANY | WIPHY_WOWLAN_DISCONNECT, 251 }; 252 #endif 253 254 255 static struct ieee80211_hw *cw1200_init_common(const u8 *macaddr, 256 const bool have_5ghz) 257 { 258 int i, band; 259 struct ieee80211_hw *hw; 260 struct cw1200_common *priv; 261 262 hw = ieee80211_alloc_hw(sizeof(struct cw1200_common), &cw1200_ops); 263 if (!hw) 264 return NULL; 265 266 priv = hw->priv; 267 priv->hw = hw; 268 priv->hw_type = -1; 269 priv->mode = NL80211_IFTYPE_UNSPECIFIED; 270 priv->rates = cw1200_rates; /* TODO: fetch from FW */ 271 priv->mcs_rates = cw1200_n_rates; 272 if (cw1200_ba_rx_tids != -1) 273 priv->ba_rx_tid_mask = cw1200_ba_rx_tids; 274 else 275 priv->ba_rx_tid_mask = 0xFF; /* Enable RX BLKACK for all TIDs */ 276 if (cw1200_ba_tx_tids != -1) 277 priv->ba_tx_tid_mask = cw1200_ba_tx_tids; 278 else 279 priv->ba_tx_tid_mask = 0xff; /* Enable TX BLKACK for all TIDs */ 280 281 ieee80211_hw_set(hw, NEED_DTIM_BEFORE_ASSOC); 282 ieee80211_hw_set(hw, TX_AMPDU_SETUP_IN_HW); 283 ieee80211_hw_set(hw, AMPDU_AGGREGATION); 284 ieee80211_hw_set(hw, CONNECTION_MONITOR); 285 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS); 286 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS); 287 ieee80211_hw_set(hw, SIGNAL_DBM); 288 ieee80211_hw_set(hw, SUPPORTS_PS); 289 290 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 291 BIT(NL80211_IFTYPE_ADHOC) | 292 BIT(NL80211_IFTYPE_AP) | 293 BIT(NL80211_IFTYPE_MESH_POINT) | 294 BIT(NL80211_IFTYPE_P2P_CLIENT) | 295 BIT(NL80211_IFTYPE_P2P_GO); 296 297 #ifdef CONFIG_PM 298 hw->wiphy->wowlan = &cw1200_wowlan_support; 299 #endif 300 301 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD; 302 303 hw->queues = 4; 304 305 priv->rts_threshold = -1; 306 307 hw->max_rates = 8; 308 hw->max_rate_tries = 15; 309 hw->extra_tx_headroom = WSM_TX_EXTRA_HEADROOM + 310 8; /* TKIP IV */ 311 312 hw->sta_data_size = sizeof(struct cw1200_sta_priv); 313 314 hw->wiphy->bands[NL80211_BAND_2GHZ] = &cw1200_band_2ghz; 315 if (have_5ghz) 316 hw->wiphy->bands[NL80211_BAND_5GHZ] = &cw1200_band_5ghz; 317 318 /* Channel params have to be cleared before registering wiphy again */ 319 for (band = 0; band < NUM_NL80211_BANDS; band++) { 320 struct ieee80211_supported_band *sband = hw->wiphy->bands[band]; 321 if (!sband) 322 continue; 323 for (i = 0; i < sband->n_channels; i++) { 324 sband->channels[i].flags = 0; 325 sband->channels[i].max_antenna_gain = 0; 326 sband->channels[i].max_power = 30; 327 } 328 } 329 330 hw->wiphy->max_scan_ssids = 2; 331 hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN; 332 333 if (macaddr) 334 SET_IEEE80211_PERM_ADDR(hw, (u8 *)macaddr); 335 else 336 SET_IEEE80211_PERM_ADDR(hw, cw1200_mac_template); 337 338 /* Fix up mac address if necessary */ 339 if (hw->wiphy->perm_addr[3] == 0 && 340 hw->wiphy->perm_addr[4] == 0 && 341 hw->wiphy->perm_addr[5] == 0) { 342 get_random_bytes(&hw->wiphy->perm_addr[3], 3); 343 } 344 345 mutex_init(&priv->wsm_cmd_mux); 346 mutex_init(&priv->conf_mutex); 347 priv->workqueue = create_singlethread_workqueue("cw1200_wq"); 348 if (!priv->workqueue) { 349 ieee80211_free_hw(hw); 350 return NULL; 351 } 352 353 sema_init(&priv->scan.lock, 1); 354 INIT_WORK(&priv->scan.work, cw1200_scan_work); 355 INIT_DELAYED_WORK(&priv->scan.probe_work, cw1200_probe_work); 356 INIT_DELAYED_WORK(&priv->scan.timeout, cw1200_scan_timeout); 357 INIT_DELAYED_WORK(&priv->clear_recent_scan_work, 358 cw1200_clear_recent_scan_work); 359 INIT_DELAYED_WORK(&priv->join_timeout, cw1200_join_timeout); 360 INIT_WORK(&priv->unjoin_work, cw1200_unjoin_work); 361 INIT_WORK(&priv->join_complete_work, cw1200_join_complete_work); 362 INIT_WORK(&priv->wep_key_work, cw1200_wep_key_work); 363 INIT_WORK(&priv->tx_policy_upload_work, tx_policy_upload_work); 364 spin_lock_init(&priv->event_queue_lock); 365 INIT_LIST_HEAD(&priv->event_queue); 366 INIT_WORK(&priv->event_handler, cw1200_event_handler); 367 INIT_DELAYED_WORK(&priv->bss_loss_work, cw1200_bss_loss_work); 368 INIT_WORK(&priv->bss_params_work, cw1200_bss_params_work); 369 spin_lock_init(&priv->bss_loss_lock); 370 spin_lock_init(&priv->ps_state_lock); 371 INIT_WORK(&priv->set_cts_work, cw1200_set_cts_work); 372 INIT_WORK(&priv->set_tim_work, cw1200_set_tim_work); 373 INIT_WORK(&priv->multicast_start_work, cw1200_multicast_start_work); 374 INIT_WORK(&priv->multicast_stop_work, cw1200_multicast_stop_work); 375 INIT_WORK(&priv->link_id_work, cw1200_link_id_work); 376 INIT_DELAYED_WORK(&priv->link_id_gc_work, cw1200_link_id_gc_work); 377 INIT_WORK(&priv->linkid_reset_work, cw1200_link_id_reset); 378 INIT_WORK(&priv->update_filtering_work, cw1200_update_filtering_work); 379 INIT_WORK(&priv->set_beacon_wakeup_period_work, 380 cw1200_set_beacon_wakeup_period_work); 381 timer_setup(&priv->mcast_timeout, cw1200_mcast_timeout, 0); 382 383 if (cw1200_queue_stats_init(&priv->tx_queue_stats, 384 CW1200_LINK_ID_MAX, 385 cw1200_skb_dtor, 386 priv)) { 387 ieee80211_free_hw(hw); 388 return NULL; 389 } 390 391 for (i = 0; i < 4; ++i) { 392 if (cw1200_queue_init(&priv->tx_queue[i], 393 &priv->tx_queue_stats, i, 16, 394 cw1200_ttl[i])) { 395 for (; i > 0; i--) 396 cw1200_queue_deinit(&priv->tx_queue[i - 1]); 397 cw1200_queue_stats_deinit(&priv->tx_queue_stats); 398 ieee80211_free_hw(hw); 399 return NULL; 400 } 401 } 402 403 init_waitqueue_head(&priv->channel_switch_done); 404 init_waitqueue_head(&priv->wsm_cmd_wq); 405 init_waitqueue_head(&priv->wsm_startup_done); 406 init_waitqueue_head(&priv->ps_mode_switch_done); 407 wsm_buf_init(&priv->wsm_cmd_buf); 408 spin_lock_init(&priv->wsm_cmd.lock); 409 priv->wsm_cmd.done = 1; 410 tx_policy_init(priv); 411 412 return hw; 413 } 414 415 static int cw1200_register_common(struct ieee80211_hw *dev) 416 { 417 struct cw1200_common *priv = dev->priv; 418 int err; 419 420 #ifdef CONFIG_PM 421 err = cw1200_pm_init(&priv->pm_state, priv); 422 if (err) { 423 pr_err("Cannot init PM. (%d).\n", 424 err); 425 return err; 426 } 427 #endif 428 429 err = ieee80211_register_hw(dev); 430 if (err) { 431 pr_err("Cannot register device (%d).\n", 432 err); 433 #ifdef CONFIG_PM 434 cw1200_pm_deinit(&priv->pm_state); 435 #endif 436 return err; 437 } 438 439 cw1200_debug_init(priv); 440 441 pr_info("Registered as '%s'\n", wiphy_name(dev->wiphy)); 442 return 0; 443 } 444 445 static void cw1200_free_common(struct ieee80211_hw *dev) 446 { 447 ieee80211_free_hw(dev); 448 } 449 450 static void cw1200_unregister_common(struct ieee80211_hw *dev) 451 { 452 struct cw1200_common *priv = dev->priv; 453 int i; 454 455 ieee80211_unregister_hw(dev); 456 457 del_timer_sync(&priv->mcast_timeout); 458 cw1200_unregister_bh(priv); 459 460 cw1200_debug_release(priv); 461 462 mutex_destroy(&priv->conf_mutex); 463 464 wsm_buf_deinit(&priv->wsm_cmd_buf); 465 466 destroy_workqueue(priv->workqueue); 467 priv->workqueue = NULL; 468 469 if (priv->sdd) { 470 release_firmware(priv->sdd); 471 priv->sdd = NULL; 472 } 473 474 for (i = 0; i < 4; ++i) 475 cw1200_queue_deinit(&priv->tx_queue[i]); 476 477 cw1200_queue_stats_deinit(&priv->tx_queue_stats); 478 #ifdef CONFIG_PM 479 cw1200_pm_deinit(&priv->pm_state); 480 #endif 481 } 482 483 /* Clock is in KHz */ 484 u32 cw1200_dpll_from_clk(u16 clk_khz) 485 { 486 switch (clk_khz) { 487 case 0x32C8: /* 13000 KHz */ 488 return 0x1D89D241; 489 case 0x3E80: /* 16000 KHz */ 490 return 0x000001E1; 491 case 0x41A0: /* 16800 KHz */ 492 return 0x124931C1; 493 case 0x4B00: /* 19200 KHz */ 494 return 0x00000191; 495 case 0x5DC0: /* 24000 KHz */ 496 return 0x00000141; 497 case 0x6590: /* 26000 KHz */ 498 return 0x0EC4F121; 499 case 0x8340: /* 33600 KHz */ 500 return 0x092490E1; 501 case 0x9600: /* 38400 KHz */ 502 return 0x100010C1; 503 case 0x9C40: /* 40000 KHz */ 504 return 0x000000C1; 505 case 0xBB80: /* 48000 KHz */ 506 return 0x000000A1; 507 case 0xCB20: /* 52000 KHz */ 508 return 0x07627091; 509 default: 510 pr_err("Unknown Refclk freq (0x%04x), using 26000KHz\n", 511 clk_khz); 512 return 0x0EC4F121; 513 } 514 } 515 516 int cw1200_core_probe(const struct hwbus_ops *hwbus_ops, 517 struct hwbus_priv *hwbus, 518 struct device *pdev, 519 struct cw1200_common **core, 520 int ref_clk, const u8 *macaddr, 521 const char *sdd_path, bool have_5ghz) 522 { 523 int err = -EINVAL; 524 struct ieee80211_hw *dev; 525 struct cw1200_common *priv; 526 struct wsm_operational_mode mode = { 527 .power_mode = cw1200_power_mode, 528 .disable_more_flag_usage = true, 529 }; 530 531 dev = cw1200_init_common(macaddr, have_5ghz); 532 if (!dev) 533 goto err; 534 535 priv = dev->priv; 536 priv->hw_refclk = ref_clk; 537 if (cw1200_refclk) 538 priv->hw_refclk = cw1200_refclk; 539 540 priv->sdd_path = (char *)sdd_path; 541 if (cw1200_sdd_path) 542 priv->sdd_path = cw1200_sdd_path; 543 544 priv->hwbus_ops = hwbus_ops; 545 priv->hwbus_priv = hwbus; 546 priv->pdev = pdev; 547 SET_IEEE80211_DEV(priv->hw, pdev); 548 549 /* Pass struct cw1200_common back up */ 550 *core = priv; 551 552 err = cw1200_register_bh(priv); 553 if (err) 554 goto err1; 555 556 err = cw1200_load_firmware(priv); 557 if (err) 558 goto err2; 559 560 if (wait_event_interruptible_timeout(priv->wsm_startup_done, 561 priv->firmware_ready, 562 3*HZ) <= 0) { 563 /* TODO: Need to find how to reset device 564 in QUEUE mode properly. 565 */ 566 pr_err("Timeout waiting on device startup\n"); 567 err = -ETIMEDOUT; 568 goto err2; 569 } 570 571 /* Set low-power mode. */ 572 wsm_set_operational_mode(priv, &mode); 573 574 /* Enable multi-TX confirmation */ 575 wsm_use_multi_tx_conf(priv, true); 576 577 err = cw1200_register_common(dev); 578 if (err) 579 goto err2; 580 581 return err; 582 583 err2: 584 cw1200_unregister_bh(priv); 585 err1: 586 cw1200_free_common(dev); 587 err: 588 *core = NULL; 589 return err; 590 } 591 EXPORT_SYMBOL_GPL(cw1200_core_probe); 592 593 void cw1200_core_release(struct cw1200_common *self) 594 { 595 /* Disable device interrupts */ 596 self->hwbus_ops->lock(self->hwbus_priv); 597 __cw1200_irq_enable(self, 0); 598 self->hwbus_ops->unlock(self->hwbus_priv); 599 600 /* And then clean up */ 601 cw1200_unregister_common(self->hw); 602 cw1200_free_common(self->hw); 603 return; 604 } 605 EXPORT_SYMBOL_GPL(cw1200_core_release); 606