| 1 | /****************************************************************************** |
| 2 | * |
| 3 | * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved. |
| 4 | * |
| 5 | * Portions of this file are derived from the ipw3945 project, as well |
| 6 | * as portions of the ieee80211 subsystem header files. |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify it |
| 9 | * under the terms of version 2 of the GNU General Public License as |
| 10 | * published by the Free Software Foundation. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, but WITHOUT |
| 13 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 14 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 15 | * more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License along with |
| 18 | * this program; if not, write to the Free Software Foundation, Inc., |
| 19 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA |
| 20 | * |
| 21 | * The full GNU General Public License is included in this distribution in the |
| 22 | * file called LICENSE. |
| 23 | * |
| 24 | * Contact Information: |
| 25 | * Intel Linux Wireless <ilw@linux.intel.com> |
| 26 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
| 27 | * |
| 28 | *****************************************************************************/ |
| 29 | #include <linux/kernel.h> |
| 30 | #include <linux/module.h> |
| 31 | #include <linux/init.h> |
| 32 | #include <linux/slab.h> |
| 33 | #include <linux/delay.h> |
| 34 | #include <linux/sched.h> |
| 35 | #include <linux/skbuff.h> |
| 36 | #include <linux/netdevice.h> |
| 37 | #include <linux/firmware.h> |
| 38 | #include <linux/etherdevice.h> |
| 39 | #include <linux/if_arp.h> |
| 40 | |
| 41 | #include <net/mac80211.h> |
| 42 | |
| 43 | #include <asm/div64.h> |
| 44 | |
| 45 | #include "iwl-eeprom.h" |
| 46 | #include "iwl-dev.h" |
| 47 | #include "iwl-core.h" |
| 48 | #include "iwl-io.h" |
| 49 | #include "iwl-agn-calib.h" |
| 50 | #include "iwl-agn.h" |
| 51 | #include "iwl-shared.h" |
| 52 | #include "iwl-bus.h" |
| 53 | #include "iwl-trans.h" |
| 54 | |
| 55 | /****************************************************************************** |
| 56 | * |
| 57 | * module boiler plate |
| 58 | * |
| 59 | ******************************************************************************/ |
| 60 | |
| 61 | /* |
| 62 | * module name, copyright, version, etc. |
| 63 | */ |
| 64 | #define DRV_DESCRIPTION "Intel(R) Wireless WiFi Link AGN driver for Linux" |
| 65 | |
| 66 | #ifdef CONFIG_IWLWIFI_DEBUG |
| 67 | #define VD "d" |
| 68 | #else |
| 69 | #define VD |
| 70 | #endif |
| 71 | |
| 72 | #define DRV_VERSION IWLWIFI_VERSION VD |
| 73 | |
| 74 | |
| 75 | MODULE_DESCRIPTION(DRV_DESCRIPTION); |
| 76 | MODULE_VERSION(DRV_VERSION); |
| 77 | MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR); |
| 78 | MODULE_LICENSE("GPL"); |
| 79 | MODULE_ALIAS("iwlagn"); |
| 80 | |
| 81 | void iwl_update_chain_flags(struct iwl_priv *priv) |
| 82 | { |
| 83 | struct iwl_rxon_context *ctx; |
| 84 | |
| 85 | for_each_context(priv, ctx) { |
| 86 | iwlagn_set_rxon_chain(priv, ctx); |
| 87 | if (ctx->active.rx_chain != ctx->staging.rx_chain) |
| 88 | iwlagn_commit_rxon(priv, ctx); |
| 89 | } |
| 90 | } |
| 91 | |
| 92 | /* Parse the beacon frame to find the TIM element and set tim_idx & tim_size */ |
| 93 | static void iwl_set_beacon_tim(struct iwl_priv *priv, |
| 94 | struct iwl_tx_beacon_cmd *tx_beacon_cmd, |
| 95 | u8 *beacon, u32 frame_size) |
| 96 | { |
| 97 | u16 tim_idx; |
| 98 | struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)beacon; |
| 99 | |
| 100 | /* |
| 101 | * The index is relative to frame start but we start looking at the |
| 102 | * variable-length part of the beacon. |
| 103 | */ |
| 104 | tim_idx = mgmt->u.beacon.variable - beacon; |
| 105 | |
| 106 | /* Parse variable-length elements of beacon to find WLAN_EID_TIM */ |
| 107 | while ((tim_idx < (frame_size - 2)) && |
| 108 | (beacon[tim_idx] != WLAN_EID_TIM)) |
| 109 | tim_idx += beacon[tim_idx+1] + 2; |
| 110 | |
| 111 | /* If TIM field was found, set variables */ |
| 112 | if ((tim_idx < (frame_size - 1)) && (beacon[tim_idx] == WLAN_EID_TIM)) { |
| 113 | tx_beacon_cmd->tim_idx = cpu_to_le16(tim_idx); |
| 114 | tx_beacon_cmd->tim_size = beacon[tim_idx+1]; |
| 115 | } else |
| 116 | IWL_WARN(priv, "Unable to find TIM Element in beacon\n"); |
| 117 | } |
| 118 | |
| 119 | int iwlagn_send_beacon_cmd(struct iwl_priv *priv) |
| 120 | { |
| 121 | struct iwl_tx_beacon_cmd *tx_beacon_cmd; |
| 122 | struct iwl_host_cmd cmd = { |
| 123 | .id = REPLY_TX_BEACON, |
| 124 | .flags = CMD_SYNC, |
| 125 | }; |
| 126 | struct ieee80211_tx_info *info; |
| 127 | u32 frame_size; |
| 128 | u32 rate_flags; |
| 129 | u32 rate; |
| 130 | |
| 131 | /* |
| 132 | * We have to set up the TX command, the TX Beacon command, and the |
| 133 | * beacon contents. |
| 134 | */ |
| 135 | |
| 136 | lockdep_assert_held(&priv->shrd->mutex); |
| 137 | |
| 138 | if (!priv->beacon_ctx) { |
| 139 | IWL_ERR(priv, "trying to build beacon w/o beacon context!\n"); |
| 140 | return 0; |
| 141 | } |
| 142 | |
| 143 | if (WARN_ON(!priv->beacon_skb)) |
| 144 | return -EINVAL; |
| 145 | |
| 146 | /* Allocate beacon command */ |
| 147 | if (!priv->beacon_cmd) |
| 148 | priv->beacon_cmd = kzalloc(sizeof(*tx_beacon_cmd), GFP_KERNEL); |
| 149 | tx_beacon_cmd = priv->beacon_cmd; |
| 150 | if (!tx_beacon_cmd) |
| 151 | return -ENOMEM; |
| 152 | |
| 153 | frame_size = priv->beacon_skb->len; |
| 154 | |
| 155 | /* Set up TX command fields */ |
| 156 | tx_beacon_cmd->tx.len = cpu_to_le16((u16)frame_size); |
| 157 | tx_beacon_cmd->tx.sta_id = priv->beacon_ctx->bcast_sta_id; |
| 158 | tx_beacon_cmd->tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; |
| 159 | tx_beacon_cmd->tx.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK | |
| 160 | TX_CMD_FLG_TSF_MSK | TX_CMD_FLG_STA_RATE_MSK; |
| 161 | |
| 162 | /* Set up TX beacon command fields */ |
| 163 | iwl_set_beacon_tim(priv, tx_beacon_cmd, priv->beacon_skb->data, |
| 164 | frame_size); |
| 165 | |
| 166 | /* Set up packet rate and flags */ |
| 167 | info = IEEE80211_SKB_CB(priv->beacon_skb); |
| 168 | |
| 169 | /* |
| 170 | * Let's set up the rate at least somewhat correctly; |
| 171 | * it will currently not actually be used by the uCode, |
| 172 | * it uses the broadcast station's rate instead. |
| 173 | */ |
| 174 | if (info->control.rates[0].idx < 0 || |
| 175 | info->control.rates[0].flags & IEEE80211_TX_RC_MCS) |
| 176 | rate = 0; |
| 177 | else |
| 178 | rate = info->control.rates[0].idx; |
| 179 | |
| 180 | priv->mgmt_tx_ant = iwl_toggle_tx_ant(priv, priv->mgmt_tx_ant, |
| 181 | hw_params(priv).valid_tx_ant); |
| 182 | rate_flags = iwl_ant_idx_to_flags(priv->mgmt_tx_ant); |
| 183 | |
| 184 | /* In mac80211, rates for 5 GHz start at 0 */ |
| 185 | if (info->band == IEEE80211_BAND_5GHZ) |
| 186 | rate += IWL_FIRST_OFDM_RATE; |
| 187 | else if (rate >= IWL_FIRST_CCK_RATE && rate <= IWL_LAST_CCK_RATE) |
| 188 | rate_flags |= RATE_MCS_CCK_MSK; |
| 189 | |
| 190 | tx_beacon_cmd->tx.rate_n_flags = |
| 191 | iwl_hw_set_rate_n_flags(rate, rate_flags); |
| 192 | |
| 193 | /* Submit command */ |
| 194 | cmd.len[0] = sizeof(*tx_beacon_cmd); |
| 195 | cmd.data[0] = tx_beacon_cmd; |
| 196 | cmd.dataflags[0] = IWL_HCMD_DFL_NOCOPY; |
| 197 | cmd.len[1] = frame_size; |
| 198 | cmd.data[1] = priv->beacon_skb->data; |
| 199 | cmd.dataflags[1] = IWL_HCMD_DFL_NOCOPY; |
| 200 | |
| 201 | return iwl_trans_send_cmd(trans(priv), &cmd); |
| 202 | } |
| 203 | |
| 204 | static void iwl_bg_beacon_update(struct work_struct *work) |
| 205 | { |
| 206 | struct iwl_priv *priv = |
| 207 | container_of(work, struct iwl_priv, beacon_update); |
| 208 | struct sk_buff *beacon; |
| 209 | |
| 210 | mutex_lock(&priv->shrd->mutex); |
| 211 | if (!priv->beacon_ctx) { |
| 212 | IWL_ERR(priv, "updating beacon w/o beacon context!\n"); |
| 213 | goto out; |
| 214 | } |
| 215 | |
| 216 | if (priv->beacon_ctx->vif->type != NL80211_IFTYPE_AP) { |
| 217 | /* |
| 218 | * The ucode will send beacon notifications even in |
| 219 | * IBSS mode, but we don't want to process them. But |
| 220 | * we need to defer the type check to here due to |
| 221 | * requiring locking around the beacon_ctx access. |
| 222 | */ |
| 223 | goto out; |
| 224 | } |
| 225 | |
| 226 | /* Pull updated AP beacon from mac80211. will fail if not in AP mode */ |
| 227 | beacon = ieee80211_beacon_get(priv->hw, priv->beacon_ctx->vif); |
| 228 | if (!beacon) { |
| 229 | IWL_ERR(priv, "update beacon failed -- keeping old\n"); |
| 230 | goto out; |
| 231 | } |
| 232 | |
| 233 | /* new beacon skb is allocated every time; dispose previous.*/ |
| 234 | dev_kfree_skb(priv->beacon_skb); |
| 235 | |
| 236 | priv->beacon_skb = beacon; |
| 237 | |
| 238 | iwlagn_send_beacon_cmd(priv); |
| 239 | out: |
| 240 | mutex_unlock(&priv->shrd->mutex); |
| 241 | } |
| 242 | |
| 243 | static void iwl_bg_bt_runtime_config(struct work_struct *work) |
| 244 | { |
| 245 | struct iwl_priv *priv = |
| 246 | container_of(work, struct iwl_priv, bt_runtime_config); |
| 247 | |
| 248 | if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status)) |
| 249 | return; |
| 250 | |
| 251 | /* dont send host command if rf-kill is on */ |
| 252 | if (!iwl_is_ready_rf(priv->shrd)) |
| 253 | return; |
| 254 | iwlagn_send_advance_bt_config(priv); |
| 255 | } |
| 256 | |
| 257 | static void iwl_bg_bt_full_concurrency(struct work_struct *work) |
| 258 | { |
| 259 | struct iwl_priv *priv = |
| 260 | container_of(work, struct iwl_priv, bt_full_concurrency); |
| 261 | struct iwl_rxon_context *ctx; |
| 262 | |
| 263 | mutex_lock(&priv->shrd->mutex); |
| 264 | |
| 265 | if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status)) |
| 266 | goto out; |
| 267 | |
| 268 | /* dont send host command if rf-kill is on */ |
| 269 | if (!iwl_is_ready_rf(priv->shrd)) |
| 270 | goto out; |
| 271 | |
| 272 | IWL_DEBUG_INFO(priv, "BT coex in %s mode\n", |
| 273 | priv->bt_full_concurrent ? |
| 274 | "full concurrency" : "3-wire"); |
| 275 | |
| 276 | /* |
| 277 | * LQ & RXON updated cmds must be sent before BT Config cmd |
| 278 | * to avoid 3-wire collisions |
| 279 | */ |
| 280 | for_each_context(priv, ctx) { |
| 281 | iwlagn_set_rxon_chain(priv, ctx); |
| 282 | iwlagn_commit_rxon(priv, ctx); |
| 283 | } |
| 284 | |
| 285 | iwlagn_send_advance_bt_config(priv); |
| 286 | out: |
| 287 | mutex_unlock(&priv->shrd->mutex); |
| 288 | } |
| 289 | |
| 290 | /** |
| 291 | * iwl_bg_statistics_periodic - Timer callback to queue statistics |
| 292 | * |
| 293 | * This callback is provided in order to send a statistics request. |
| 294 | * |
| 295 | * This timer function is continually reset to execute within |
| 296 | * REG_RECALIB_PERIOD seconds since the last STATISTICS_NOTIFICATION |
| 297 | * was received. We need to ensure we receive the statistics in order |
| 298 | * to update the temperature used for calibrating the TXPOWER. |
| 299 | */ |
| 300 | static void iwl_bg_statistics_periodic(unsigned long data) |
| 301 | { |
| 302 | struct iwl_priv *priv = (struct iwl_priv *)data; |
| 303 | |
| 304 | if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status)) |
| 305 | return; |
| 306 | |
| 307 | /* dont send host command if rf-kill is on */ |
| 308 | if (!iwl_is_ready_rf(priv->shrd)) |
| 309 | return; |
| 310 | |
| 311 | iwl_send_statistics_request(priv, CMD_ASYNC, false); |
| 312 | } |
| 313 | |
| 314 | |
| 315 | static void iwl_print_cont_event_trace(struct iwl_priv *priv, u32 base, |
| 316 | u32 start_idx, u32 num_events, |
| 317 | u32 mode) |
| 318 | { |
| 319 | u32 i; |
| 320 | u32 ptr; /* SRAM byte address of log data */ |
| 321 | u32 ev, time, data; /* event log data */ |
| 322 | unsigned long reg_flags; |
| 323 | |
| 324 | if (mode == 0) |
| 325 | ptr = base + (4 * sizeof(u32)) + (start_idx * 2 * sizeof(u32)); |
| 326 | else |
| 327 | ptr = base + (4 * sizeof(u32)) + (start_idx * 3 * sizeof(u32)); |
| 328 | |
| 329 | /* Make sure device is powered up for SRAM reads */ |
| 330 | spin_lock_irqsave(&bus(priv)->reg_lock, reg_flags); |
| 331 | if (iwl_grab_nic_access(bus(priv))) { |
| 332 | spin_unlock_irqrestore(&bus(priv)->reg_lock, reg_flags); |
| 333 | return; |
| 334 | } |
| 335 | |
| 336 | /* Set starting address; reads will auto-increment */ |
| 337 | iwl_write32(bus(priv), HBUS_TARG_MEM_RADDR, ptr); |
| 338 | rmb(); |
| 339 | |
| 340 | /* |
| 341 | * "time" is actually "data" for mode 0 (no timestamp). |
| 342 | * place event id # at far right for easier visual parsing. |
| 343 | */ |
| 344 | for (i = 0; i < num_events; i++) { |
| 345 | ev = iwl_read32(bus(priv), HBUS_TARG_MEM_RDAT); |
| 346 | time = iwl_read32(bus(priv), HBUS_TARG_MEM_RDAT); |
| 347 | if (mode == 0) { |
| 348 | trace_iwlwifi_dev_ucode_cont_event(priv, |
| 349 | 0, time, ev); |
| 350 | } else { |
| 351 | data = iwl_read32(bus(priv), HBUS_TARG_MEM_RDAT); |
| 352 | trace_iwlwifi_dev_ucode_cont_event(priv, |
| 353 | time, data, ev); |
| 354 | } |
| 355 | } |
| 356 | /* Allow device to power down */ |
| 357 | iwl_release_nic_access(bus(priv)); |
| 358 | spin_unlock_irqrestore(&bus(priv)->reg_lock, reg_flags); |
| 359 | } |
| 360 | |
| 361 | static void iwl_continuous_event_trace(struct iwl_priv *priv) |
| 362 | { |
| 363 | u32 capacity; /* event log capacity in # entries */ |
| 364 | u32 base; /* SRAM byte address of event log header */ |
| 365 | u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */ |
| 366 | u32 num_wraps; /* # times uCode wrapped to top of log */ |
| 367 | u32 next_entry; /* index of next entry to be written by uCode */ |
| 368 | |
| 369 | base = priv->shrd->device_pointers.error_event_table; |
| 370 | if (iwlagn_hw_valid_rtc_data_addr(base)) { |
| 371 | capacity = iwl_read_targ_mem(bus(priv), base); |
| 372 | num_wraps = iwl_read_targ_mem(bus(priv), |
| 373 | base + (2 * sizeof(u32))); |
| 374 | mode = iwl_read_targ_mem(bus(priv), base + (1 * sizeof(u32))); |
| 375 | next_entry = iwl_read_targ_mem(bus(priv), |
| 376 | base + (3 * sizeof(u32))); |
| 377 | } else |
| 378 | return; |
| 379 | |
| 380 | if (num_wraps == priv->event_log.num_wraps) { |
| 381 | iwl_print_cont_event_trace(priv, |
| 382 | base, priv->event_log.next_entry, |
| 383 | next_entry - priv->event_log.next_entry, |
| 384 | mode); |
| 385 | priv->event_log.non_wraps_count++; |
| 386 | } else { |
| 387 | if ((num_wraps - priv->event_log.num_wraps) > 1) |
| 388 | priv->event_log.wraps_more_count++; |
| 389 | else |
| 390 | priv->event_log.wraps_once_count++; |
| 391 | trace_iwlwifi_dev_ucode_wrap_event(priv, |
| 392 | num_wraps - priv->event_log.num_wraps, |
| 393 | next_entry, priv->event_log.next_entry); |
| 394 | if (next_entry < priv->event_log.next_entry) { |
| 395 | iwl_print_cont_event_trace(priv, base, |
| 396 | priv->event_log.next_entry, |
| 397 | capacity - priv->event_log.next_entry, |
| 398 | mode); |
| 399 | |
| 400 | iwl_print_cont_event_trace(priv, base, 0, |
| 401 | next_entry, mode); |
| 402 | } else { |
| 403 | iwl_print_cont_event_trace(priv, base, |
| 404 | next_entry, capacity - next_entry, |
| 405 | mode); |
| 406 | |
| 407 | iwl_print_cont_event_trace(priv, base, 0, |
| 408 | next_entry, mode); |
| 409 | } |
| 410 | } |
| 411 | priv->event_log.num_wraps = num_wraps; |
| 412 | priv->event_log.next_entry = next_entry; |
| 413 | } |
| 414 | |
| 415 | /** |
| 416 | * iwl_bg_ucode_trace - Timer callback to log ucode event |
| 417 | * |
| 418 | * The timer is continually set to execute every |
| 419 | * UCODE_TRACE_PERIOD milliseconds after the last timer expired |
| 420 | * this function is to perform continuous uCode event logging operation |
| 421 | * if enabled |
| 422 | */ |
| 423 | static void iwl_bg_ucode_trace(unsigned long data) |
| 424 | { |
| 425 | struct iwl_priv *priv = (struct iwl_priv *)data; |
| 426 | |
| 427 | if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status)) |
| 428 | return; |
| 429 | |
| 430 | if (priv->event_log.ucode_trace) { |
| 431 | iwl_continuous_event_trace(priv); |
| 432 | /* Reschedule the timer to occur in UCODE_TRACE_PERIOD */ |
| 433 | mod_timer(&priv->ucode_trace, |
| 434 | jiffies + msecs_to_jiffies(UCODE_TRACE_PERIOD)); |
| 435 | } |
| 436 | } |
| 437 | |
| 438 | static void iwl_bg_tx_flush(struct work_struct *work) |
| 439 | { |
| 440 | struct iwl_priv *priv = |
| 441 | container_of(work, struct iwl_priv, tx_flush); |
| 442 | |
| 443 | if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status)) |
| 444 | return; |
| 445 | |
| 446 | /* do nothing if rf-kill is on */ |
| 447 | if (!iwl_is_ready_rf(priv->shrd)) |
| 448 | return; |
| 449 | |
| 450 | IWL_DEBUG_INFO(priv, "device request: flush all tx frames\n"); |
| 451 | iwlagn_dev_txfifo_flush(priv, IWL_DROP_ALL); |
| 452 | } |
| 453 | |
| 454 | static void iwl_init_context(struct iwl_priv *priv, u32 ucode_flags) |
| 455 | { |
| 456 | int i; |
| 457 | |
| 458 | /* |
| 459 | * The default context is always valid, |
| 460 | * the PAN context depends on uCode. |
| 461 | */ |
| 462 | priv->shrd->valid_contexts = BIT(IWL_RXON_CTX_BSS); |
| 463 | if (ucode_flags & IWL_UCODE_TLV_FLAGS_PAN) |
| 464 | priv->shrd->valid_contexts |= BIT(IWL_RXON_CTX_PAN); |
| 465 | |
| 466 | for (i = 0; i < NUM_IWL_RXON_CTX; i++) |
| 467 | priv->contexts[i].ctxid = i; |
| 468 | |
| 469 | priv->contexts[IWL_RXON_CTX_BSS].always_active = true; |
| 470 | priv->contexts[IWL_RXON_CTX_BSS].is_active = true; |
| 471 | priv->contexts[IWL_RXON_CTX_BSS].rxon_cmd = REPLY_RXON; |
| 472 | priv->contexts[IWL_RXON_CTX_BSS].rxon_timing_cmd = REPLY_RXON_TIMING; |
| 473 | priv->contexts[IWL_RXON_CTX_BSS].rxon_assoc_cmd = REPLY_RXON_ASSOC; |
| 474 | priv->contexts[IWL_RXON_CTX_BSS].qos_cmd = REPLY_QOS_PARAM; |
| 475 | priv->contexts[IWL_RXON_CTX_BSS].ap_sta_id = IWL_AP_ID; |
| 476 | priv->contexts[IWL_RXON_CTX_BSS].wep_key_cmd = REPLY_WEPKEY; |
| 477 | priv->contexts[IWL_RXON_CTX_BSS].exclusive_interface_modes = |
| 478 | BIT(NL80211_IFTYPE_ADHOC); |
| 479 | priv->contexts[IWL_RXON_CTX_BSS].interface_modes = |
| 480 | BIT(NL80211_IFTYPE_STATION); |
| 481 | priv->contexts[IWL_RXON_CTX_BSS].ap_devtype = RXON_DEV_TYPE_AP; |
| 482 | priv->contexts[IWL_RXON_CTX_BSS].ibss_devtype = RXON_DEV_TYPE_IBSS; |
| 483 | priv->contexts[IWL_RXON_CTX_BSS].station_devtype = RXON_DEV_TYPE_ESS; |
| 484 | priv->contexts[IWL_RXON_CTX_BSS].unused_devtype = RXON_DEV_TYPE_ESS; |
| 485 | |
| 486 | priv->contexts[IWL_RXON_CTX_PAN].rxon_cmd = REPLY_WIPAN_RXON; |
| 487 | priv->contexts[IWL_RXON_CTX_PAN].rxon_timing_cmd = |
| 488 | REPLY_WIPAN_RXON_TIMING; |
| 489 | priv->contexts[IWL_RXON_CTX_PAN].rxon_assoc_cmd = |
| 490 | REPLY_WIPAN_RXON_ASSOC; |
| 491 | priv->contexts[IWL_RXON_CTX_PAN].qos_cmd = REPLY_WIPAN_QOS_PARAM; |
| 492 | priv->contexts[IWL_RXON_CTX_PAN].ap_sta_id = IWL_AP_ID_PAN; |
| 493 | priv->contexts[IWL_RXON_CTX_PAN].wep_key_cmd = REPLY_WIPAN_WEPKEY; |
| 494 | priv->contexts[IWL_RXON_CTX_PAN].bcast_sta_id = IWLAGN_PAN_BCAST_ID; |
| 495 | priv->contexts[IWL_RXON_CTX_PAN].station_flags = STA_FLG_PAN_STATION; |
| 496 | priv->contexts[IWL_RXON_CTX_PAN].interface_modes = |
| 497 | BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_AP); |
| 498 | |
| 499 | if (ucode_flags & IWL_UCODE_TLV_FLAGS_P2P) |
| 500 | priv->contexts[IWL_RXON_CTX_PAN].interface_modes |= |
| 501 | BIT(NL80211_IFTYPE_P2P_CLIENT) | |
| 502 | BIT(NL80211_IFTYPE_P2P_GO); |
| 503 | |
| 504 | priv->contexts[IWL_RXON_CTX_PAN].ap_devtype = RXON_DEV_TYPE_CP; |
| 505 | priv->contexts[IWL_RXON_CTX_PAN].station_devtype = RXON_DEV_TYPE_2STA; |
| 506 | priv->contexts[IWL_RXON_CTX_PAN].unused_devtype = RXON_DEV_TYPE_P2P; |
| 507 | |
| 508 | BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2); |
| 509 | } |
| 510 | |
| 511 | static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context); |
| 512 | |
| 513 | #define UCODE_EXPERIMENTAL_INDEX 100 |
| 514 | #define UCODE_EXPERIMENTAL_TAG "exp" |
| 515 | |
| 516 | static int __must_check iwl_request_firmware(struct iwl_priv *priv, bool first) |
| 517 | { |
| 518 | const char *name_pre = priv->cfg->fw_name_pre; |
| 519 | char tag[8]; |
| 520 | |
| 521 | if (first) { |
| 522 | #ifdef CONFIG_IWLWIFI_DEBUG_EXPERIMENTAL_UCODE |
| 523 | priv->fw_index = UCODE_EXPERIMENTAL_INDEX; |
| 524 | strcpy(tag, UCODE_EXPERIMENTAL_TAG); |
| 525 | } else if (priv->fw_index == UCODE_EXPERIMENTAL_INDEX) { |
| 526 | #endif |
| 527 | priv->fw_index = priv->cfg->ucode_api_max; |
| 528 | sprintf(tag, "%d", priv->fw_index); |
| 529 | } else { |
| 530 | priv->fw_index--; |
| 531 | sprintf(tag, "%d", priv->fw_index); |
| 532 | } |
| 533 | |
| 534 | if (priv->fw_index < priv->cfg->ucode_api_min) { |
| 535 | IWL_ERR(priv, "no suitable firmware found!\n"); |
| 536 | return -ENOENT; |
| 537 | } |
| 538 | |
| 539 | sprintf(priv->firmware_name, "%s%s%s", name_pre, tag, ".ucode"); |
| 540 | |
| 541 | IWL_DEBUG_INFO(priv, "attempting to load firmware %s'%s'\n", |
| 542 | (priv->fw_index == UCODE_EXPERIMENTAL_INDEX) |
| 543 | ? "EXPERIMENTAL " : "", |
| 544 | priv->firmware_name); |
| 545 | |
| 546 | return request_firmware_nowait(THIS_MODULE, 1, priv->firmware_name, |
| 547 | bus(priv)->dev, |
| 548 | GFP_KERNEL, priv, iwl_ucode_callback); |
| 549 | } |
| 550 | |
| 551 | struct iwlagn_firmware_pieces { |
| 552 | const void *inst, *data, *init, *init_data, *wowlan_inst, *wowlan_data; |
| 553 | size_t inst_size, data_size, init_size, init_data_size, |
| 554 | wowlan_inst_size, wowlan_data_size; |
| 555 | |
| 556 | u32 build; |
| 557 | |
| 558 | u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr; |
| 559 | u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr; |
| 560 | }; |
| 561 | |
| 562 | static int iwlagn_load_legacy_firmware(struct iwl_priv *priv, |
| 563 | const struct firmware *ucode_raw, |
| 564 | struct iwlagn_firmware_pieces *pieces) |
| 565 | { |
| 566 | struct iwl_ucode_header *ucode = (void *)ucode_raw->data; |
| 567 | u32 api_ver, hdr_size; |
| 568 | const u8 *src; |
| 569 | |
| 570 | priv->ucode_ver = le32_to_cpu(ucode->ver); |
| 571 | api_ver = IWL_UCODE_API(priv->ucode_ver); |
| 572 | |
| 573 | switch (api_ver) { |
| 574 | default: |
| 575 | hdr_size = 28; |
| 576 | if (ucode_raw->size < hdr_size) { |
| 577 | IWL_ERR(priv, "File size too small!\n"); |
| 578 | return -EINVAL; |
| 579 | } |
| 580 | pieces->build = le32_to_cpu(ucode->u.v2.build); |
| 581 | pieces->inst_size = le32_to_cpu(ucode->u.v2.inst_size); |
| 582 | pieces->data_size = le32_to_cpu(ucode->u.v2.data_size); |
| 583 | pieces->init_size = le32_to_cpu(ucode->u.v2.init_size); |
| 584 | pieces->init_data_size = le32_to_cpu(ucode->u.v2.init_data_size); |
| 585 | src = ucode->u.v2.data; |
| 586 | break; |
| 587 | case 0: |
| 588 | case 1: |
| 589 | case 2: |
| 590 | hdr_size = 24; |
| 591 | if (ucode_raw->size < hdr_size) { |
| 592 | IWL_ERR(priv, "File size too small!\n"); |
| 593 | return -EINVAL; |
| 594 | } |
| 595 | pieces->build = 0; |
| 596 | pieces->inst_size = le32_to_cpu(ucode->u.v1.inst_size); |
| 597 | pieces->data_size = le32_to_cpu(ucode->u.v1.data_size); |
| 598 | pieces->init_size = le32_to_cpu(ucode->u.v1.init_size); |
| 599 | pieces->init_data_size = le32_to_cpu(ucode->u.v1.init_data_size); |
| 600 | src = ucode->u.v1.data; |
| 601 | break; |
| 602 | } |
| 603 | |
| 604 | /* Verify size of file vs. image size info in file's header */ |
| 605 | if (ucode_raw->size != hdr_size + pieces->inst_size + |
| 606 | pieces->data_size + pieces->init_size + |
| 607 | pieces->init_data_size) { |
| 608 | |
| 609 | IWL_ERR(priv, |
| 610 | "uCode file size %d does not match expected size\n", |
| 611 | (int)ucode_raw->size); |
| 612 | return -EINVAL; |
| 613 | } |
| 614 | |
| 615 | pieces->inst = src; |
| 616 | src += pieces->inst_size; |
| 617 | pieces->data = src; |
| 618 | src += pieces->data_size; |
| 619 | pieces->init = src; |
| 620 | src += pieces->init_size; |
| 621 | pieces->init_data = src; |
| 622 | src += pieces->init_data_size; |
| 623 | |
| 624 | return 0; |
| 625 | } |
| 626 | |
| 627 | static int iwlagn_load_firmware(struct iwl_priv *priv, |
| 628 | const struct firmware *ucode_raw, |
| 629 | struct iwlagn_firmware_pieces *pieces, |
| 630 | struct iwlagn_ucode_capabilities *capa) |
| 631 | { |
| 632 | struct iwl_tlv_ucode_header *ucode = (void *)ucode_raw->data; |
| 633 | struct iwl_ucode_tlv *tlv; |
| 634 | size_t len = ucode_raw->size; |
| 635 | const u8 *data; |
| 636 | int wanted_alternative = iwlagn_mod_params.wanted_ucode_alternative; |
| 637 | int tmp; |
| 638 | u64 alternatives; |
| 639 | u32 tlv_len; |
| 640 | enum iwl_ucode_tlv_type tlv_type; |
| 641 | const u8 *tlv_data; |
| 642 | |
| 643 | if (len < sizeof(*ucode)) { |
| 644 | IWL_ERR(priv, "uCode has invalid length: %zd\n", len); |
| 645 | return -EINVAL; |
| 646 | } |
| 647 | |
| 648 | if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) { |
| 649 | IWL_ERR(priv, "invalid uCode magic: 0X%x\n", |
| 650 | le32_to_cpu(ucode->magic)); |
| 651 | return -EINVAL; |
| 652 | } |
| 653 | |
| 654 | /* |
| 655 | * Check which alternatives are present, and "downgrade" |
| 656 | * when the chosen alternative is not present, warning |
| 657 | * the user when that happens. Some files may not have |
| 658 | * any alternatives, so don't warn in that case. |
| 659 | */ |
| 660 | alternatives = le64_to_cpu(ucode->alternatives); |
| 661 | tmp = wanted_alternative; |
| 662 | if (wanted_alternative > 63) |
| 663 | wanted_alternative = 63; |
| 664 | while (wanted_alternative && !(alternatives & BIT(wanted_alternative))) |
| 665 | wanted_alternative--; |
| 666 | if (wanted_alternative && wanted_alternative != tmp) |
| 667 | IWL_WARN(priv, |
| 668 | "uCode alternative %d not available, choosing %d\n", |
| 669 | tmp, wanted_alternative); |
| 670 | |
| 671 | priv->ucode_ver = le32_to_cpu(ucode->ver); |
| 672 | pieces->build = le32_to_cpu(ucode->build); |
| 673 | data = ucode->data; |
| 674 | |
| 675 | len -= sizeof(*ucode); |
| 676 | |
| 677 | while (len >= sizeof(*tlv)) { |
| 678 | u16 tlv_alt; |
| 679 | |
| 680 | len -= sizeof(*tlv); |
| 681 | tlv = (void *)data; |
| 682 | |
| 683 | tlv_len = le32_to_cpu(tlv->length); |
| 684 | tlv_type = le16_to_cpu(tlv->type); |
| 685 | tlv_alt = le16_to_cpu(tlv->alternative); |
| 686 | tlv_data = tlv->data; |
| 687 | |
| 688 | if (len < tlv_len) { |
| 689 | IWL_ERR(priv, "invalid TLV len: %zd/%u\n", |
| 690 | len, tlv_len); |
| 691 | return -EINVAL; |
| 692 | } |
| 693 | len -= ALIGN(tlv_len, 4); |
| 694 | data += sizeof(*tlv) + ALIGN(tlv_len, 4); |
| 695 | |
| 696 | /* |
| 697 | * Alternative 0 is always valid. |
| 698 | * |
| 699 | * Skip alternative TLVs that are not selected. |
| 700 | */ |
| 701 | if (tlv_alt != 0 && tlv_alt != wanted_alternative) |
| 702 | continue; |
| 703 | |
| 704 | switch (tlv_type) { |
| 705 | case IWL_UCODE_TLV_INST: |
| 706 | pieces->inst = tlv_data; |
| 707 | pieces->inst_size = tlv_len; |
| 708 | break; |
| 709 | case IWL_UCODE_TLV_DATA: |
| 710 | pieces->data = tlv_data; |
| 711 | pieces->data_size = tlv_len; |
| 712 | break; |
| 713 | case IWL_UCODE_TLV_INIT: |
| 714 | pieces->init = tlv_data; |
| 715 | pieces->init_size = tlv_len; |
| 716 | break; |
| 717 | case IWL_UCODE_TLV_INIT_DATA: |
| 718 | pieces->init_data = tlv_data; |
| 719 | pieces->init_data_size = tlv_len; |
| 720 | break; |
| 721 | case IWL_UCODE_TLV_BOOT: |
| 722 | IWL_ERR(priv, "Found unexpected BOOT ucode\n"); |
| 723 | break; |
| 724 | case IWL_UCODE_TLV_PROBE_MAX_LEN: |
| 725 | if (tlv_len != sizeof(u32)) |
| 726 | goto invalid_tlv_len; |
| 727 | capa->max_probe_length = |
| 728 | le32_to_cpup((__le32 *)tlv_data); |
| 729 | break; |
| 730 | case IWL_UCODE_TLV_PAN: |
| 731 | if (tlv_len) |
| 732 | goto invalid_tlv_len; |
| 733 | capa->flags |= IWL_UCODE_TLV_FLAGS_PAN; |
| 734 | break; |
| 735 | case IWL_UCODE_TLV_FLAGS: |
| 736 | /* must be at least one u32 */ |
| 737 | if (tlv_len < sizeof(u32)) |
| 738 | goto invalid_tlv_len; |
| 739 | /* and a proper number of u32s */ |
| 740 | if (tlv_len % sizeof(u32)) |
| 741 | goto invalid_tlv_len; |
| 742 | /* |
| 743 | * This driver only reads the first u32 as |
| 744 | * right now no more features are defined, |
| 745 | * if that changes then either the driver |
| 746 | * will not work with the new firmware, or |
| 747 | * it'll not take advantage of new features. |
| 748 | */ |
| 749 | capa->flags = le32_to_cpup((__le32 *)tlv_data); |
| 750 | break; |
| 751 | case IWL_UCODE_TLV_INIT_EVTLOG_PTR: |
| 752 | if (tlv_len != sizeof(u32)) |
| 753 | goto invalid_tlv_len; |
| 754 | pieces->init_evtlog_ptr = |
| 755 | le32_to_cpup((__le32 *)tlv_data); |
| 756 | break; |
| 757 | case IWL_UCODE_TLV_INIT_EVTLOG_SIZE: |
| 758 | if (tlv_len != sizeof(u32)) |
| 759 | goto invalid_tlv_len; |
| 760 | pieces->init_evtlog_size = |
| 761 | le32_to_cpup((__le32 *)tlv_data); |
| 762 | break; |
| 763 | case IWL_UCODE_TLV_INIT_ERRLOG_PTR: |
| 764 | if (tlv_len != sizeof(u32)) |
| 765 | goto invalid_tlv_len; |
| 766 | pieces->init_errlog_ptr = |
| 767 | le32_to_cpup((__le32 *)tlv_data); |
| 768 | break; |
| 769 | case IWL_UCODE_TLV_RUNT_EVTLOG_PTR: |
| 770 | if (tlv_len != sizeof(u32)) |
| 771 | goto invalid_tlv_len; |
| 772 | pieces->inst_evtlog_ptr = |
| 773 | le32_to_cpup((__le32 *)tlv_data); |
| 774 | break; |
| 775 | case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE: |
| 776 | if (tlv_len != sizeof(u32)) |
| 777 | goto invalid_tlv_len; |
| 778 | pieces->inst_evtlog_size = |
| 779 | le32_to_cpup((__le32 *)tlv_data); |
| 780 | break; |
| 781 | case IWL_UCODE_TLV_RUNT_ERRLOG_PTR: |
| 782 | if (tlv_len != sizeof(u32)) |
| 783 | goto invalid_tlv_len; |
| 784 | pieces->inst_errlog_ptr = |
| 785 | le32_to_cpup((__le32 *)tlv_data); |
| 786 | break; |
| 787 | case IWL_UCODE_TLV_ENHANCE_SENS_TBL: |
| 788 | if (tlv_len) |
| 789 | goto invalid_tlv_len; |
| 790 | priv->enhance_sensitivity_table = true; |
| 791 | break; |
| 792 | case IWL_UCODE_TLV_WOWLAN_INST: |
| 793 | pieces->wowlan_inst = tlv_data; |
| 794 | pieces->wowlan_inst_size = tlv_len; |
| 795 | break; |
| 796 | case IWL_UCODE_TLV_WOWLAN_DATA: |
| 797 | pieces->wowlan_data = tlv_data; |
| 798 | pieces->wowlan_data_size = tlv_len; |
| 799 | break; |
| 800 | case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE: |
| 801 | if (tlv_len != sizeof(u32)) |
| 802 | goto invalid_tlv_len; |
| 803 | capa->standard_phy_calibration_size = |
| 804 | le32_to_cpup((__le32 *)tlv_data); |
| 805 | break; |
| 806 | default: |
| 807 | IWL_DEBUG_INFO(priv, "unknown TLV: %d\n", tlv_type); |
| 808 | break; |
| 809 | } |
| 810 | } |
| 811 | |
| 812 | if (len) { |
| 813 | IWL_ERR(priv, "invalid TLV after parsing: %zd\n", len); |
| 814 | iwl_print_hex_dump(priv, IWL_DL_FW, (u8 *)data, len); |
| 815 | return -EINVAL; |
| 816 | } |
| 817 | |
| 818 | return 0; |
| 819 | |
| 820 | invalid_tlv_len: |
| 821 | IWL_ERR(priv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len); |
| 822 | iwl_print_hex_dump(priv, IWL_DL_FW, tlv_data, tlv_len); |
| 823 | |
| 824 | return -EINVAL; |
| 825 | } |
| 826 | |
| 827 | /** |
| 828 | * iwl_ucode_callback - callback when firmware was loaded |
| 829 | * |
| 830 | * If loaded successfully, copies the firmware into buffers |
| 831 | * for the card to fetch (via DMA). |
| 832 | */ |
| 833 | static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context) |
| 834 | { |
| 835 | struct iwl_priv *priv = context; |
| 836 | struct iwl_ucode_header *ucode; |
| 837 | int err; |
| 838 | struct iwlagn_firmware_pieces pieces; |
| 839 | const unsigned int api_max = priv->cfg->ucode_api_max; |
| 840 | unsigned int api_ok = priv->cfg->ucode_api_ok; |
| 841 | const unsigned int api_min = priv->cfg->ucode_api_min; |
| 842 | u32 api_ver; |
| 843 | char buildstr[25]; |
| 844 | u32 build; |
| 845 | struct iwlagn_ucode_capabilities ucode_capa = { |
| 846 | .max_probe_length = 200, |
| 847 | .standard_phy_calibration_size = |
| 848 | IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE, |
| 849 | }; |
| 850 | |
| 851 | if (!api_ok) |
| 852 | api_ok = api_max; |
| 853 | |
| 854 | memset(&pieces, 0, sizeof(pieces)); |
| 855 | |
| 856 | if (!ucode_raw) { |
| 857 | if (priv->fw_index <= api_ok) |
| 858 | IWL_ERR(priv, |
| 859 | "request for firmware file '%s' failed.\n", |
| 860 | priv->firmware_name); |
| 861 | goto try_again; |
| 862 | } |
| 863 | |
| 864 | IWL_DEBUG_INFO(priv, "Loaded firmware file '%s' (%zd bytes).\n", |
| 865 | priv->firmware_name, ucode_raw->size); |
| 866 | |
| 867 | /* Make sure that we got at least the API version number */ |
| 868 | if (ucode_raw->size < 4) { |
| 869 | IWL_ERR(priv, "File size way too small!\n"); |
| 870 | goto try_again; |
| 871 | } |
| 872 | |
| 873 | /* Data from ucode file: header followed by uCode images */ |
| 874 | ucode = (struct iwl_ucode_header *)ucode_raw->data; |
| 875 | |
| 876 | if (ucode->ver) |
| 877 | err = iwlagn_load_legacy_firmware(priv, ucode_raw, &pieces); |
| 878 | else |
| 879 | err = iwlagn_load_firmware(priv, ucode_raw, &pieces, |
| 880 | &ucode_capa); |
| 881 | |
| 882 | if (err) |
| 883 | goto try_again; |
| 884 | |
| 885 | api_ver = IWL_UCODE_API(priv->ucode_ver); |
| 886 | build = pieces.build; |
| 887 | |
| 888 | /* |
| 889 | * api_ver should match the api version forming part of the |
| 890 | * firmware filename ... but we don't check for that and only rely |
| 891 | * on the API version read from firmware header from here on forward |
| 892 | */ |
| 893 | /* no api version check required for experimental uCode */ |
| 894 | if (priv->fw_index != UCODE_EXPERIMENTAL_INDEX) { |
| 895 | if (api_ver < api_min || api_ver > api_max) { |
| 896 | IWL_ERR(priv, |
| 897 | "Driver unable to support your firmware API. " |
| 898 | "Driver supports v%u, firmware is v%u.\n", |
| 899 | api_max, api_ver); |
| 900 | goto try_again; |
| 901 | } |
| 902 | |
| 903 | if (api_ver < api_ok) { |
| 904 | if (api_ok != api_max) |
| 905 | IWL_ERR(priv, "Firmware has old API version, " |
| 906 | "expected v%u through v%u, got v%u.\n", |
| 907 | api_ok, api_max, api_ver); |
| 908 | else |
| 909 | IWL_ERR(priv, "Firmware has old API version, " |
| 910 | "expected v%u, got v%u.\n", |
| 911 | api_max, api_ver); |
| 912 | IWL_ERR(priv, "New firmware can be obtained from " |
| 913 | "http://www.intellinuxwireless.org/.\n"); |
| 914 | } |
| 915 | } |
| 916 | |
| 917 | if (build) |
| 918 | sprintf(buildstr, " build %u%s", build, |
| 919 | (priv->fw_index == UCODE_EXPERIMENTAL_INDEX) |
| 920 | ? " (EXP)" : ""); |
| 921 | else |
| 922 | buildstr[0] = '\0'; |
| 923 | |
| 924 | IWL_INFO(priv, "loaded firmware version %u.%u.%u.%u%s\n", |
| 925 | IWL_UCODE_MAJOR(priv->ucode_ver), |
| 926 | IWL_UCODE_MINOR(priv->ucode_ver), |
| 927 | IWL_UCODE_API(priv->ucode_ver), |
| 928 | IWL_UCODE_SERIAL(priv->ucode_ver), |
| 929 | buildstr); |
| 930 | |
| 931 | snprintf(priv->hw->wiphy->fw_version, |
| 932 | sizeof(priv->hw->wiphy->fw_version), |
| 933 | "%u.%u.%u.%u%s", |
| 934 | IWL_UCODE_MAJOR(priv->ucode_ver), |
| 935 | IWL_UCODE_MINOR(priv->ucode_ver), |
| 936 | IWL_UCODE_API(priv->ucode_ver), |
| 937 | IWL_UCODE_SERIAL(priv->ucode_ver), |
| 938 | buildstr); |
| 939 | |
| 940 | /* |
| 941 | * For any of the failures below (before allocating pci memory) |
| 942 | * we will try to load a version with a smaller API -- maybe the |
| 943 | * user just got a corrupted version of the latest API. |
| 944 | */ |
| 945 | |
| 946 | IWL_DEBUG_INFO(priv, "f/w package hdr ucode version raw = 0x%x\n", |
| 947 | priv->ucode_ver); |
| 948 | IWL_DEBUG_INFO(priv, "f/w package hdr runtime inst size = %Zd\n", |
| 949 | pieces.inst_size); |
| 950 | IWL_DEBUG_INFO(priv, "f/w package hdr runtime data size = %Zd\n", |
| 951 | pieces.data_size); |
| 952 | IWL_DEBUG_INFO(priv, "f/w package hdr init inst size = %Zd\n", |
| 953 | pieces.init_size); |
| 954 | IWL_DEBUG_INFO(priv, "f/w package hdr init data size = %Zd\n", |
| 955 | pieces.init_data_size); |
| 956 | |
| 957 | /* Verify that uCode images will fit in card's SRAM */ |
| 958 | if (pieces.inst_size > hw_params(priv).max_inst_size) { |
| 959 | IWL_ERR(priv, "uCode instr len %Zd too large to fit in\n", |
| 960 | pieces.inst_size); |
| 961 | goto try_again; |
| 962 | } |
| 963 | |
| 964 | if (pieces.data_size > hw_params(priv).max_data_size) { |
| 965 | IWL_ERR(priv, "uCode data len %Zd too large to fit in\n", |
| 966 | pieces.data_size); |
| 967 | goto try_again; |
| 968 | } |
| 969 | |
| 970 | if (pieces.init_size > hw_params(priv).max_inst_size) { |
| 971 | IWL_ERR(priv, "uCode init instr len %Zd too large to fit in\n", |
| 972 | pieces.init_size); |
| 973 | goto try_again; |
| 974 | } |
| 975 | |
| 976 | if (pieces.init_data_size > hw_params(priv).max_data_size) { |
| 977 | IWL_ERR(priv, "uCode init data len %Zd too large to fit in\n", |
| 978 | pieces.init_data_size); |
| 979 | goto try_again; |
| 980 | } |
| 981 | |
| 982 | /* Allocate ucode buffers for card's bus-master loading ... */ |
| 983 | |
| 984 | /* Runtime instructions and 2 copies of data: |
| 985 | * 1) unmodified from disk |
| 986 | * 2) backup cache for save/restore during power-downs */ |
| 987 | if (iwl_alloc_fw_desc(bus(priv), &trans(priv)->ucode_rt.code, |
| 988 | pieces.inst, pieces.inst_size)) |
| 989 | goto err_pci_alloc; |
| 990 | if (iwl_alloc_fw_desc(bus(priv), &trans(priv)->ucode_rt.data, |
| 991 | pieces.data, pieces.data_size)) |
| 992 | goto err_pci_alloc; |
| 993 | |
| 994 | /* Initialization instructions and data */ |
| 995 | if (pieces.init_size && pieces.init_data_size) { |
| 996 | if (iwl_alloc_fw_desc(bus(priv), &trans(priv)->ucode_init.code, |
| 997 | pieces.init, pieces.init_size)) |
| 998 | goto err_pci_alloc; |
| 999 | if (iwl_alloc_fw_desc(bus(priv), &trans(priv)->ucode_init.data, |
| 1000 | pieces.init_data, pieces.init_data_size)) |
| 1001 | goto err_pci_alloc; |
| 1002 | } |
| 1003 | |
| 1004 | /* WoWLAN instructions and data */ |
| 1005 | if (pieces.wowlan_inst_size && pieces.wowlan_data_size) { |
| 1006 | if (iwl_alloc_fw_desc(bus(priv), |
| 1007 | &trans(priv)->ucode_wowlan.code, |
| 1008 | pieces.wowlan_inst, |
| 1009 | pieces.wowlan_inst_size)) |
| 1010 | goto err_pci_alloc; |
| 1011 | if (iwl_alloc_fw_desc(bus(priv), |
| 1012 | &trans(priv)->ucode_wowlan.data, |
| 1013 | pieces.wowlan_data, |
| 1014 | pieces.wowlan_data_size)) |
| 1015 | goto err_pci_alloc; |
| 1016 | } |
| 1017 | |
| 1018 | /* Now that we can no longer fail, copy information */ |
| 1019 | |
| 1020 | /* |
| 1021 | * The (size - 16) / 12 formula is based on the information recorded |
| 1022 | * for each event, which is of mode 1 (including timestamp) for all |
| 1023 | * new microcodes that include this information. |
| 1024 | */ |
| 1025 | priv->init_evtlog_ptr = pieces.init_evtlog_ptr; |
| 1026 | if (pieces.init_evtlog_size) |
| 1027 | priv->init_evtlog_size = (pieces.init_evtlog_size - 16)/12; |
| 1028 | else |
| 1029 | priv->init_evtlog_size = |
| 1030 | priv->cfg->base_params->max_event_log_size; |
| 1031 | priv->init_errlog_ptr = pieces.init_errlog_ptr; |
| 1032 | priv->inst_evtlog_ptr = pieces.inst_evtlog_ptr; |
| 1033 | if (pieces.inst_evtlog_size) |
| 1034 | priv->inst_evtlog_size = (pieces.inst_evtlog_size - 16)/12; |
| 1035 | else |
| 1036 | priv->inst_evtlog_size = |
| 1037 | priv->cfg->base_params->max_event_log_size; |
| 1038 | priv->inst_errlog_ptr = pieces.inst_errlog_ptr; |
| 1039 | #ifndef CONFIG_IWLWIFI_P2P |
| 1040 | ucode_capa.flags &= ~IWL_UCODE_TLV_FLAGS_PAN; |
| 1041 | #endif |
| 1042 | |
| 1043 | priv->new_scan_threshold_behaviour = |
| 1044 | !!(ucode_capa.flags & IWL_UCODE_TLV_FLAGS_NEWSCAN); |
| 1045 | |
| 1046 | if (!(priv->cfg->sku & EEPROM_SKU_CAP_IPAN_ENABLE)) |
| 1047 | ucode_capa.flags &= ~IWL_UCODE_TLV_FLAGS_PAN; |
| 1048 | |
| 1049 | /* |
| 1050 | * if not PAN, then don't support P2P -- might be a uCode |
| 1051 | * packaging bug or due to the eeprom check above |
| 1052 | */ |
| 1053 | if (!(ucode_capa.flags & IWL_UCODE_TLV_FLAGS_PAN)) |
| 1054 | ucode_capa.flags &= ~IWL_UCODE_TLV_FLAGS_P2P; |
| 1055 | |
| 1056 | if (ucode_capa.flags & IWL_UCODE_TLV_FLAGS_PAN) { |
| 1057 | priv->sta_key_max_num = STA_KEY_MAX_NUM_PAN; |
| 1058 | priv->shrd->cmd_queue = IWL_IPAN_CMD_QUEUE_NUM; |
| 1059 | } else { |
| 1060 | priv->sta_key_max_num = STA_KEY_MAX_NUM; |
| 1061 | priv->shrd->cmd_queue = IWL_DEFAULT_CMD_QUEUE_NUM; |
| 1062 | } |
| 1063 | /* |
| 1064 | * figure out the offset of chain noise reset and gain commands |
| 1065 | * base on the size of standard phy calibration commands table size |
| 1066 | */ |
| 1067 | if (ucode_capa.standard_phy_calibration_size > |
| 1068 | IWL_MAX_PHY_CALIBRATE_TBL_SIZE) |
| 1069 | ucode_capa.standard_phy_calibration_size = |
| 1070 | IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE; |
| 1071 | |
| 1072 | priv->phy_calib_chain_noise_reset_cmd = |
| 1073 | ucode_capa.standard_phy_calibration_size; |
| 1074 | priv->phy_calib_chain_noise_gain_cmd = |
| 1075 | ucode_capa.standard_phy_calibration_size + 1; |
| 1076 | |
| 1077 | /* initialize all valid contexts */ |
| 1078 | iwl_init_context(priv, ucode_capa.flags); |
| 1079 | |
| 1080 | /************************************************** |
| 1081 | * This is still part of probe() in a sense... |
| 1082 | * |
| 1083 | * 9. Setup and register with mac80211 and debugfs |
| 1084 | **************************************************/ |
| 1085 | err = iwlagn_mac_setup_register(priv, &ucode_capa); |
| 1086 | if (err) |
| 1087 | goto out_unbind; |
| 1088 | |
| 1089 | err = iwl_dbgfs_register(priv, DRV_NAME); |
| 1090 | if (err) |
| 1091 | IWL_ERR(priv, "failed to create debugfs files. Ignoring error: %d\n", err); |
| 1092 | |
| 1093 | /* We have our copies now, allow OS release its copies */ |
| 1094 | release_firmware(ucode_raw); |
| 1095 | complete(&priv->firmware_loading_complete); |
| 1096 | return; |
| 1097 | |
| 1098 | try_again: |
| 1099 | /* try next, if any */ |
| 1100 | if (iwl_request_firmware(priv, false)) |
| 1101 | goto out_unbind; |
| 1102 | release_firmware(ucode_raw); |
| 1103 | return; |
| 1104 | |
| 1105 | err_pci_alloc: |
| 1106 | IWL_ERR(priv, "failed to allocate pci memory\n"); |
| 1107 | iwl_dealloc_ucode(trans(priv)); |
| 1108 | out_unbind: |
| 1109 | complete(&priv->firmware_loading_complete); |
| 1110 | device_release_driver(bus(priv)->dev); |
| 1111 | release_firmware(ucode_raw); |
| 1112 | } |
| 1113 | |
| 1114 | static void iwl_rf_kill_ct_config(struct iwl_priv *priv) |
| 1115 | { |
| 1116 | struct iwl_ct_kill_config cmd; |
| 1117 | struct iwl_ct_kill_throttling_config adv_cmd; |
| 1118 | unsigned long flags; |
| 1119 | int ret = 0; |
| 1120 | |
| 1121 | spin_lock_irqsave(&priv->shrd->lock, flags); |
| 1122 | iwl_write32(bus(priv), CSR_UCODE_DRV_GP1_CLR, |
| 1123 | CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT); |
| 1124 | spin_unlock_irqrestore(&priv->shrd->lock, flags); |
| 1125 | priv->thermal_throttle.ct_kill_toggle = false; |
| 1126 | |
| 1127 | if (priv->cfg->base_params->support_ct_kill_exit) { |
| 1128 | adv_cmd.critical_temperature_enter = |
| 1129 | cpu_to_le32(hw_params(priv).ct_kill_threshold); |
| 1130 | adv_cmd.critical_temperature_exit = |
| 1131 | cpu_to_le32(hw_params(priv).ct_kill_exit_threshold); |
| 1132 | |
| 1133 | ret = iwl_trans_send_cmd_pdu(trans(priv), |
| 1134 | REPLY_CT_KILL_CONFIG_CMD, |
| 1135 | CMD_SYNC, sizeof(adv_cmd), &adv_cmd); |
| 1136 | if (ret) |
| 1137 | IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n"); |
| 1138 | else |
| 1139 | IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD " |
| 1140 | "succeeded, critical temperature enter is %d," |
| 1141 | "exit is %d\n", |
| 1142 | hw_params(priv).ct_kill_threshold, |
| 1143 | hw_params(priv).ct_kill_exit_threshold); |
| 1144 | } else { |
| 1145 | cmd.critical_temperature_R = |
| 1146 | cpu_to_le32(hw_params(priv).ct_kill_threshold); |
| 1147 | |
| 1148 | ret = iwl_trans_send_cmd_pdu(trans(priv), |
| 1149 | REPLY_CT_KILL_CONFIG_CMD, |
| 1150 | CMD_SYNC, sizeof(cmd), &cmd); |
| 1151 | if (ret) |
| 1152 | IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n"); |
| 1153 | else |
| 1154 | IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD " |
| 1155 | "succeeded, " |
| 1156 | "critical temperature is %d\n", |
| 1157 | hw_params(priv).ct_kill_threshold); |
| 1158 | } |
| 1159 | } |
| 1160 | |
| 1161 | static int iwlagn_send_calib_cfg_rt(struct iwl_priv *priv, u32 cfg) |
| 1162 | { |
| 1163 | struct iwl_calib_cfg_cmd calib_cfg_cmd; |
| 1164 | struct iwl_host_cmd cmd = { |
| 1165 | .id = CALIBRATION_CFG_CMD, |
| 1166 | .len = { sizeof(struct iwl_calib_cfg_cmd), }, |
| 1167 | .data = { &calib_cfg_cmd, }, |
| 1168 | }; |
| 1169 | |
| 1170 | memset(&calib_cfg_cmd, 0, sizeof(calib_cfg_cmd)); |
| 1171 | calib_cfg_cmd.ucd_calib_cfg.once.is_enable = IWL_CALIB_RT_CFG_ALL; |
| 1172 | calib_cfg_cmd.ucd_calib_cfg.once.start = cpu_to_le32(cfg); |
| 1173 | |
| 1174 | return iwl_trans_send_cmd(trans(priv), &cmd); |
| 1175 | } |
| 1176 | |
| 1177 | |
| 1178 | static int iwlagn_send_tx_ant_config(struct iwl_priv *priv, u8 valid_tx_ant) |
| 1179 | { |
| 1180 | struct iwl_tx_ant_config_cmd tx_ant_cmd = { |
| 1181 | .valid = cpu_to_le32(valid_tx_ant), |
| 1182 | }; |
| 1183 | |
| 1184 | if (IWL_UCODE_API(priv->ucode_ver) > 1) { |
| 1185 | IWL_DEBUG_HC(priv, "select valid tx ant: %u\n", valid_tx_ant); |
| 1186 | return iwl_trans_send_cmd_pdu(trans(priv), |
| 1187 | TX_ANT_CONFIGURATION_CMD, |
| 1188 | CMD_SYNC, |
| 1189 | sizeof(struct iwl_tx_ant_config_cmd), |
| 1190 | &tx_ant_cmd); |
| 1191 | } else { |
| 1192 | IWL_DEBUG_HC(priv, "TX_ANT_CONFIGURATION_CMD not supported\n"); |
| 1193 | return -EOPNOTSUPP; |
| 1194 | } |
| 1195 | } |
| 1196 | |
| 1197 | /** |
| 1198 | * iwl_alive_start - called after REPLY_ALIVE notification received |
| 1199 | * from protocol/runtime uCode (initialization uCode's |
| 1200 | * Alive gets handled by iwl_init_alive_start()). |
| 1201 | */ |
| 1202 | int iwl_alive_start(struct iwl_priv *priv) |
| 1203 | { |
| 1204 | int ret = 0; |
| 1205 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; |
| 1206 | |
| 1207 | /*TODO: this should go to the transport layer */ |
| 1208 | iwl_reset_ict(trans(priv)); |
| 1209 | |
| 1210 | IWL_DEBUG_INFO(priv, "Runtime Alive received.\n"); |
| 1211 | |
| 1212 | /* After the ALIVE response, we can send host commands to the uCode */ |
| 1213 | set_bit(STATUS_ALIVE, &priv->shrd->status); |
| 1214 | |
| 1215 | /* Enable watchdog to monitor the driver tx queues */ |
| 1216 | iwl_setup_watchdog(priv); |
| 1217 | |
| 1218 | if (iwl_is_rfkill(priv->shrd)) |
| 1219 | return -ERFKILL; |
| 1220 | |
| 1221 | /* download priority table before any calibration request */ |
| 1222 | if (priv->cfg->bt_params && |
| 1223 | priv->cfg->bt_params->advanced_bt_coexist) { |
| 1224 | /* Configure Bluetooth device coexistence support */ |
| 1225 | if (priv->cfg->bt_params->bt_sco_disable) |
| 1226 | priv->bt_enable_pspoll = false; |
| 1227 | else |
| 1228 | priv->bt_enable_pspoll = true; |
| 1229 | |
| 1230 | priv->bt_valid = IWLAGN_BT_ALL_VALID_MSK; |
| 1231 | priv->kill_ack_mask = IWLAGN_BT_KILL_ACK_MASK_DEFAULT; |
| 1232 | priv->kill_cts_mask = IWLAGN_BT_KILL_CTS_MASK_DEFAULT; |
| 1233 | iwlagn_send_advance_bt_config(priv); |
| 1234 | priv->bt_valid = IWLAGN_BT_VALID_ENABLE_FLAGS; |
| 1235 | priv->cur_rssi_ctx = NULL; |
| 1236 | |
| 1237 | iwl_send_prio_tbl(trans(priv)); |
| 1238 | |
| 1239 | /* FIXME: w/a to force change uCode BT state machine */ |
| 1240 | ret = iwl_send_bt_env(trans(priv), IWL_BT_COEX_ENV_OPEN, |
| 1241 | BT_COEX_PRIO_TBL_EVT_INIT_CALIB2); |
| 1242 | if (ret) |
| 1243 | return ret; |
| 1244 | ret = iwl_send_bt_env(trans(priv), IWL_BT_COEX_ENV_CLOSE, |
| 1245 | BT_COEX_PRIO_TBL_EVT_INIT_CALIB2); |
| 1246 | if (ret) |
| 1247 | return ret; |
| 1248 | } else { |
| 1249 | /* |
| 1250 | * default is 2-wire BT coexexistence support |
| 1251 | */ |
| 1252 | iwl_send_bt_config(priv); |
| 1253 | } |
| 1254 | |
| 1255 | if (hw_params(priv).calib_rt_cfg) |
| 1256 | iwlagn_send_calib_cfg_rt(priv, |
| 1257 | hw_params(priv).calib_rt_cfg); |
| 1258 | |
| 1259 | ieee80211_wake_queues(priv->hw); |
| 1260 | |
| 1261 | priv->active_rate = IWL_RATES_MASK; |
| 1262 | |
| 1263 | /* Configure Tx antenna selection based on H/W config */ |
| 1264 | iwlagn_send_tx_ant_config(priv, priv->cfg->valid_tx_ant); |
| 1265 | |
| 1266 | if (iwl_is_associated_ctx(ctx) && !priv->shrd->wowlan) { |
| 1267 | struct iwl_rxon_cmd *active_rxon = |
| 1268 | (struct iwl_rxon_cmd *)&ctx->active; |
| 1269 | /* apply any changes in staging */ |
| 1270 | ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK; |
| 1271 | active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
| 1272 | } else { |
| 1273 | struct iwl_rxon_context *tmp; |
| 1274 | /* Initialize our rx_config data */ |
| 1275 | for_each_context(priv, tmp) |
| 1276 | iwl_connection_init_rx_config(priv, tmp); |
| 1277 | |
| 1278 | iwlagn_set_rxon_chain(priv, ctx); |
| 1279 | } |
| 1280 | |
| 1281 | if (!priv->shrd->wowlan) { |
| 1282 | /* WoWLAN ucode will not reply in the same way, skip it */ |
| 1283 | iwl_reset_run_time_calib(priv); |
| 1284 | } |
| 1285 | |
| 1286 | set_bit(STATUS_READY, &priv->shrd->status); |
| 1287 | |
| 1288 | /* Configure the adapter for unassociated operation */ |
| 1289 | ret = iwlagn_commit_rxon(priv, ctx); |
| 1290 | if (ret) |
| 1291 | return ret; |
| 1292 | |
| 1293 | /* At this point, the NIC is initialized and operational */ |
| 1294 | iwl_rf_kill_ct_config(priv); |
| 1295 | |
| 1296 | IWL_DEBUG_INFO(priv, "ALIVE processing complete.\n"); |
| 1297 | |
| 1298 | return iwl_power_update_mode(priv, true); |
| 1299 | } |
| 1300 | |
| 1301 | static void iwl_cancel_deferred_work(struct iwl_priv *priv); |
| 1302 | |
| 1303 | void __iwl_down(struct iwl_priv *priv) |
| 1304 | { |
| 1305 | int exit_pending; |
| 1306 | |
| 1307 | IWL_DEBUG_INFO(priv, DRV_NAME " is going down\n"); |
| 1308 | |
| 1309 | iwl_scan_cancel_timeout(priv, 200); |
| 1310 | |
| 1311 | /* |
| 1312 | * If active, scanning won't cancel it, so say it expired. |
| 1313 | * No race since we hold the mutex here and a new one |
| 1314 | * can't come in at this time. |
| 1315 | */ |
| 1316 | ieee80211_remain_on_channel_expired(priv->hw); |
| 1317 | |
| 1318 | exit_pending = |
| 1319 | test_and_set_bit(STATUS_EXIT_PENDING, &priv->shrd->status); |
| 1320 | |
| 1321 | /* Stop TX queues watchdog. We need to have STATUS_EXIT_PENDING bit set |
| 1322 | * to prevent rearm timer */ |
| 1323 | del_timer_sync(&priv->watchdog); |
| 1324 | |
| 1325 | iwl_clear_ucode_stations(priv, NULL); |
| 1326 | iwl_dealloc_bcast_stations(priv); |
| 1327 | iwl_clear_driver_stations(priv); |
| 1328 | |
| 1329 | /* reset BT coex data */ |
| 1330 | priv->bt_status = 0; |
| 1331 | priv->cur_rssi_ctx = NULL; |
| 1332 | priv->bt_is_sco = 0; |
| 1333 | if (priv->cfg->bt_params) |
| 1334 | priv->bt_traffic_load = |
| 1335 | priv->cfg->bt_params->bt_init_traffic_load; |
| 1336 | else |
| 1337 | priv->bt_traffic_load = 0; |
| 1338 | priv->bt_full_concurrent = false; |
| 1339 | priv->bt_ci_compliance = 0; |
| 1340 | |
| 1341 | /* Wipe out the EXIT_PENDING status bit if we are not actually |
| 1342 | * exiting the module */ |
| 1343 | if (!exit_pending) |
| 1344 | clear_bit(STATUS_EXIT_PENDING, &priv->shrd->status); |
| 1345 | |
| 1346 | if (priv->mac80211_registered) |
| 1347 | ieee80211_stop_queues(priv->hw); |
| 1348 | |
| 1349 | iwl_trans_stop_device(trans(priv)); |
| 1350 | |
| 1351 | /* Clear out all status bits but a few that are stable across reset */ |
| 1352 | priv->shrd->status &= |
| 1353 | test_bit(STATUS_RF_KILL_HW, &priv->shrd->status) << |
| 1354 | STATUS_RF_KILL_HW | |
| 1355 | test_bit(STATUS_GEO_CONFIGURED, &priv->shrd->status) << |
| 1356 | STATUS_GEO_CONFIGURED | |
| 1357 | test_bit(STATUS_FW_ERROR, &priv->shrd->status) << |
| 1358 | STATUS_FW_ERROR | |
| 1359 | test_bit(STATUS_EXIT_PENDING, &priv->shrd->status) << |
| 1360 | STATUS_EXIT_PENDING; |
| 1361 | |
| 1362 | dev_kfree_skb(priv->beacon_skb); |
| 1363 | priv->beacon_skb = NULL; |
| 1364 | } |
| 1365 | |
| 1366 | void iwl_down(struct iwl_priv *priv) |
| 1367 | { |
| 1368 | mutex_lock(&priv->shrd->mutex); |
| 1369 | __iwl_down(priv); |
| 1370 | mutex_unlock(&priv->shrd->mutex); |
| 1371 | |
| 1372 | iwl_cancel_deferred_work(priv); |
| 1373 | } |
| 1374 | |
| 1375 | /***************************************************************************** |
| 1376 | * |
| 1377 | * Workqueue callbacks |
| 1378 | * |
| 1379 | *****************************************************************************/ |
| 1380 | |
| 1381 | static void iwl_bg_run_time_calib_work(struct work_struct *work) |
| 1382 | { |
| 1383 | struct iwl_priv *priv = container_of(work, struct iwl_priv, |
| 1384 | run_time_calib_work); |
| 1385 | |
| 1386 | mutex_lock(&priv->shrd->mutex); |
| 1387 | |
| 1388 | if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status) || |
| 1389 | test_bit(STATUS_SCANNING, &priv->shrd->status)) { |
| 1390 | mutex_unlock(&priv->shrd->mutex); |
| 1391 | return; |
| 1392 | } |
| 1393 | |
| 1394 | if (priv->start_calib) { |
| 1395 | iwl_chain_noise_calibration(priv); |
| 1396 | iwl_sensitivity_calibration(priv); |
| 1397 | } |
| 1398 | |
| 1399 | mutex_unlock(&priv->shrd->mutex); |
| 1400 | } |
| 1401 | |
| 1402 | void iwlagn_prepare_restart(struct iwl_priv *priv) |
| 1403 | { |
| 1404 | struct iwl_rxon_context *ctx; |
| 1405 | bool bt_full_concurrent; |
| 1406 | u8 bt_ci_compliance; |
| 1407 | u8 bt_load; |
| 1408 | u8 bt_status; |
| 1409 | bool bt_is_sco; |
| 1410 | |
| 1411 | lockdep_assert_held(&priv->shrd->mutex); |
| 1412 | |
| 1413 | for_each_context(priv, ctx) |
| 1414 | ctx->vif = NULL; |
| 1415 | priv->is_open = 0; |
| 1416 | |
| 1417 | /* |
| 1418 | * __iwl_down() will clear the BT status variables, |
| 1419 | * which is correct, but when we restart we really |
| 1420 | * want to keep them so restore them afterwards. |
| 1421 | * |
| 1422 | * The restart process will later pick them up and |
| 1423 | * re-configure the hw when we reconfigure the BT |
| 1424 | * command. |
| 1425 | */ |
| 1426 | bt_full_concurrent = priv->bt_full_concurrent; |
| 1427 | bt_ci_compliance = priv->bt_ci_compliance; |
| 1428 | bt_load = priv->bt_traffic_load; |
| 1429 | bt_status = priv->bt_status; |
| 1430 | bt_is_sco = priv->bt_is_sco; |
| 1431 | |
| 1432 | __iwl_down(priv); |
| 1433 | |
| 1434 | priv->bt_full_concurrent = bt_full_concurrent; |
| 1435 | priv->bt_ci_compliance = bt_ci_compliance; |
| 1436 | priv->bt_traffic_load = bt_load; |
| 1437 | priv->bt_status = bt_status; |
| 1438 | priv->bt_is_sco = bt_is_sco; |
| 1439 | } |
| 1440 | |
| 1441 | static void iwl_bg_restart(struct work_struct *data) |
| 1442 | { |
| 1443 | struct iwl_priv *priv = container_of(data, struct iwl_priv, restart); |
| 1444 | |
| 1445 | if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status)) |
| 1446 | return; |
| 1447 | |
| 1448 | if (test_and_clear_bit(STATUS_FW_ERROR, &priv->shrd->status)) { |
| 1449 | mutex_lock(&priv->shrd->mutex); |
| 1450 | iwlagn_prepare_restart(priv); |
| 1451 | mutex_unlock(&priv->shrd->mutex); |
| 1452 | iwl_cancel_deferred_work(priv); |
| 1453 | ieee80211_restart_hw(priv->hw); |
| 1454 | } else { |
| 1455 | WARN_ON(1); |
| 1456 | } |
| 1457 | } |
| 1458 | |
| 1459 | |
| 1460 | |
| 1461 | |
| 1462 | void iwlagn_disable_roc(struct iwl_priv *priv) |
| 1463 | { |
| 1464 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_PAN]; |
| 1465 | |
| 1466 | lockdep_assert_held(&priv->shrd->mutex); |
| 1467 | |
| 1468 | if (!priv->hw_roc_setup) |
| 1469 | return; |
| 1470 | |
| 1471 | ctx->staging.dev_type = RXON_DEV_TYPE_P2P; |
| 1472 | ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
| 1473 | |
| 1474 | priv->hw_roc_channel = NULL; |
| 1475 | |
| 1476 | memset(ctx->staging.node_addr, 0, ETH_ALEN); |
| 1477 | |
| 1478 | iwlagn_commit_rxon(priv, ctx); |
| 1479 | |
| 1480 | ctx->is_active = false; |
| 1481 | priv->hw_roc_setup = false; |
| 1482 | } |
| 1483 | |
| 1484 | static void iwlagn_disable_roc_work(struct work_struct *work) |
| 1485 | { |
| 1486 | struct iwl_priv *priv = container_of(work, struct iwl_priv, |
| 1487 | hw_roc_disable_work.work); |
| 1488 | |
| 1489 | mutex_lock(&priv->shrd->mutex); |
| 1490 | iwlagn_disable_roc(priv); |
| 1491 | mutex_unlock(&priv->shrd->mutex); |
| 1492 | } |
| 1493 | |
| 1494 | /***************************************************************************** |
| 1495 | * |
| 1496 | * driver setup and teardown |
| 1497 | * |
| 1498 | *****************************************************************************/ |
| 1499 | |
| 1500 | static void iwl_setup_deferred_work(struct iwl_priv *priv) |
| 1501 | { |
| 1502 | priv->shrd->workqueue = create_singlethread_workqueue(DRV_NAME); |
| 1503 | |
| 1504 | init_waitqueue_head(&priv->shrd->wait_command_queue); |
| 1505 | |
| 1506 | INIT_WORK(&priv->restart, iwl_bg_restart); |
| 1507 | INIT_WORK(&priv->beacon_update, iwl_bg_beacon_update); |
| 1508 | INIT_WORK(&priv->run_time_calib_work, iwl_bg_run_time_calib_work); |
| 1509 | INIT_WORK(&priv->tx_flush, iwl_bg_tx_flush); |
| 1510 | INIT_WORK(&priv->bt_full_concurrency, iwl_bg_bt_full_concurrency); |
| 1511 | INIT_WORK(&priv->bt_runtime_config, iwl_bg_bt_runtime_config); |
| 1512 | INIT_DELAYED_WORK(&priv->hw_roc_disable_work, |
| 1513 | iwlagn_disable_roc_work); |
| 1514 | |
| 1515 | iwl_setup_scan_deferred_work(priv); |
| 1516 | |
| 1517 | if (priv->cfg->lib->bt_setup_deferred_work) |
| 1518 | priv->cfg->lib->bt_setup_deferred_work(priv); |
| 1519 | |
| 1520 | init_timer(&priv->statistics_periodic); |
| 1521 | priv->statistics_periodic.data = (unsigned long)priv; |
| 1522 | priv->statistics_periodic.function = iwl_bg_statistics_periodic; |
| 1523 | |
| 1524 | init_timer(&priv->ucode_trace); |
| 1525 | priv->ucode_trace.data = (unsigned long)priv; |
| 1526 | priv->ucode_trace.function = iwl_bg_ucode_trace; |
| 1527 | |
| 1528 | init_timer(&priv->watchdog); |
| 1529 | priv->watchdog.data = (unsigned long)priv; |
| 1530 | priv->watchdog.function = iwl_bg_watchdog; |
| 1531 | } |
| 1532 | |
| 1533 | static void iwl_cancel_deferred_work(struct iwl_priv *priv) |
| 1534 | { |
| 1535 | if (priv->cfg->lib->cancel_deferred_work) |
| 1536 | priv->cfg->lib->cancel_deferred_work(priv); |
| 1537 | |
| 1538 | cancel_work_sync(&priv->run_time_calib_work); |
| 1539 | cancel_work_sync(&priv->beacon_update); |
| 1540 | |
| 1541 | iwl_cancel_scan_deferred_work(priv); |
| 1542 | |
| 1543 | cancel_work_sync(&priv->bt_full_concurrency); |
| 1544 | cancel_work_sync(&priv->bt_runtime_config); |
| 1545 | cancel_delayed_work_sync(&priv->hw_roc_disable_work); |
| 1546 | |
| 1547 | del_timer_sync(&priv->statistics_periodic); |
| 1548 | del_timer_sync(&priv->ucode_trace); |
| 1549 | } |
| 1550 | |
| 1551 | static void iwl_init_hw_rates(struct iwl_priv *priv, |
| 1552 | struct ieee80211_rate *rates) |
| 1553 | { |
| 1554 | int i; |
| 1555 | |
| 1556 | for (i = 0; i < IWL_RATE_COUNT_LEGACY; i++) { |
| 1557 | rates[i].bitrate = iwl_rates[i].ieee * 5; |
| 1558 | rates[i].hw_value = i; /* Rate scaling will work on indexes */ |
| 1559 | rates[i].hw_value_short = i; |
| 1560 | rates[i].flags = 0; |
| 1561 | if ((i >= IWL_FIRST_CCK_RATE) && (i <= IWL_LAST_CCK_RATE)) { |
| 1562 | /* |
| 1563 | * If CCK != 1M then set short preamble rate flag. |
| 1564 | */ |
| 1565 | rates[i].flags |= |
| 1566 | (iwl_rates[i].plcp == IWL_RATE_1M_PLCP) ? |
| 1567 | 0 : IEEE80211_RATE_SHORT_PREAMBLE; |
| 1568 | } |
| 1569 | } |
| 1570 | } |
| 1571 | |
| 1572 | static int iwl_init_drv(struct iwl_priv *priv) |
| 1573 | { |
| 1574 | int ret; |
| 1575 | |
| 1576 | spin_lock_init(&priv->shrd->sta_lock); |
| 1577 | |
| 1578 | mutex_init(&priv->shrd->mutex); |
| 1579 | |
| 1580 | INIT_LIST_HEAD(&priv->calib_results); |
| 1581 | |
| 1582 | priv->ieee_channels = NULL; |
| 1583 | priv->ieee_rates = NULL; |
| 1584 | priv->band = IEEE80211_BAND_2GHZ; |
| 1585 | |
| 1586 | priv->iw_mode = NL80211_IFTYPE_STATION; |
| 1587 | priv->current_ht_config.smps = IEEE80211_SMPS_STATIC; |
| 1588 | priv->missed_beacon_threshold = IWL_MISSED_BEACON_THRESHOLD_DEF; |
| 1589 | priv->agg_tids_count = 0; |
| 1590 | |
| 1591 | /* initialize force reset */ |
| 1592 | priv->force_reset[IWL_RF_RESET].reset_duration = |
| 1593 | IWL_DELAY_NEXT_FORCE_RF_RESET; |
| 1594 | priv->force_reset[IWL_FW_RESET].reset_duration = |
| 1595 | IWL_DELAY_NEXT_FORCE_FW_RELOAD; |
| 1596 | |
| 1597 | priv->rx_statistics_jiffies = jiffies; |
| 1598 | |
| 1599 | /* Choose which receivers/antennas to use */ |
| 1600 | iwlagn_set_rxon_chain(priv, &priv->contexts[IWL_RXON_CTX_BSS]); |
| 1601 | |
| 1602 | iwl_init_scan_params(priv); |
| 1603 | |
| 1604 | /* init bt coex */ |
| 1605 | if (priv->cfg->bt_params && |
| 1606 | priv->cfg->bt_params->advanced_bt_coexist) { |
| 1607 | priv->kill_ack_mask = IWLAGN_BT_KILL_ACK_MASK_DEFAULT; |
| 1608 | priv->kill_cts_mask = IWLAGN_BT_KILL_CTS_MASK_DEFAULT; |
| 1609 | priv->bt_valid = IWLAGN_BT_ALL_VALID_MSK; |
| 1610 | priv->bt_on_thresh = BT_ON_THRESHOLD_DEF; |
| 1611 | priv->bt_duration = BT_DURATION_LIMIT_DEF; |
| 1612 | priv->dynamic_frag_thresh = BT_FRAG_THRESHOLD_DEF; |
| 1613 | } |
| 1614 | |
| 1615 | ret = iwl_init_channel_map(priv); |
| 1616 | if (ret) { |
| 1617 | IWL_ERR(priv, "initializing regulatory failed: %d\n", ret); |
| 1618 | goto err; |
| 1619 | } |
| 1620 | |
| 1621 | ret = iwl_init_geos(priv); |
| 1622 | if (ret) { |
| 1623 | IWL_ERR(priv, "initializing geos failed: %d\n", ret); |
| 1624 | goto err_free_channel_map; |
| 1625 | } |
| 1626 | iwl_init_hw_rates(priv, priv->ieee_rates); |
| 1627 | |
| 1628 | return 0; |
| 1629 | |
| 1630 | err_free_channel_map: |
| 1631 | iwl_free_channel_map(priv); |
| 1632 | err: |
| 1633 | return ret; |
| 1634 | } |
| 1635 | |
| 1636 | static void iwl_uninit_drv(struct iwl_priv *priv) |
| 1637 | { |
| 1638 | iwl_calib_free_results(priv); |
| 1639 | iwl_free_geos(priv); |
| 1640 | iwl_free_channel_map(priv); |
| 1641 | if (priv->tx_cmd_pool) |
| 1642 | kmem_cache_destroy(priv->tx_cmd_pool); |
| 1643 | kfree(priv->scan_cmd); |
| 1644 | kfree(priv->beacon_cmd); |
| 1645 | kfree(rcu_dereference_raw(priv->noa_data)); |
| 1646 | #ifdef CONFIG_IWLWIFI_DEBUGFS |
| 1647 | kfree(priv->wowlan_sram); |
| 1648 | #endif |
| 1649 | } |
| 1650 | |
| 1651 | |
| 1652 | |
| 1653 | static u32 iwl_hw_detect(struct iwl_priv *priv) |
| 1654 | { |
| 1655 | return iwl_read32(bus(priv), CSR_HW_REV); |
| 1656 | } |
| 1657 | |
| 1658 | /* Size of one Rx buffer in host DRAM */ |
| 1659 | #define IWL_RX_BUF_SIZE_4K (4 * 1024) |
| 1660 | #define IWL_RX_BUF_SIZE_8K (8 * 1024) |
| 1661 | |
| 1662 | static int iwl_set_hw_params(struct iwl_priv *priv) |
| 1663 | { |
| 1664 | if (iwlagn_mod_params.amsdu_size_8K) |
| 1665 | hw_params(priv).rx_page_order = |
| 1666 | get_order(IWL_RX_BUF_SIZE_8K); |
| 1667 | else |
| 1668 | hw_params(priv).rx_page_order = |
| 1669 | get_order(IWL_RX_BUF_SIZE_4K); |
| 1670 | |
| 1671 | if (iwlagn_mod_params.disable_11n) |
| 1672 | priv->cfg->sku &= ~EEPROM_SKU_CAP_11N_ENABLE; |
| 1673 | |
| 1674 | hw_params(priv).num_ampdu_queues = |
| 1675 | priv->cfg->base_params->num_of_ampdu_queues; |
| 1676 | hw_params(priv).shadow_reg_enable = |
| 1677 | priv->cfg->base_params->shadow_reg_enable; |
| 1678 | hw_params(priv).sku = priv->cfg->sku; |
| 1679 | hw_params(priv).wd_timeout = priv->cfg->base_params->wd_timeout; |
| 1680 | |
| 1681 | /* Device-specific setup */ |
| 1682 | return priv->cfg->lib->set_hw_params(priv); |
| 1683 | } |
| 1684 | |
| 1685 | |
| 1686 | |
| 1687 | static void iwl_debug_config(struct iwl_priv *priv) |
| 1688 | { |
| 1689 | dev_printk(KERN_INFO, bus(priv)->dev, "CONFIG_IWLWIFI_DEBUG " |
| 1690 | #ifdef CONFIG_IWLWIFI_DEBUG |
| 1691 | "enabled\n"); |
| 1692 | #else |
| 1693 | "disabled\n"); |
| 1694 | #endif |
| 1695 | dev_printk(KERN_INFO, bus(priv)->dev, "CONFIG_IWLWIFI_DEBUGFS " |
| 1696 | #ifdef CONFIG_IWLWIFI_DEBUGFS |
| 1697 | "enabled\n"); |
| 1698 | #else |
| 1699 | "disabled\n"); |
| 1700 | #endif |
| 1701 | dev_printk(KERN_INFO, bus(priv)->dev, "CONFIG_IWLWIFI_DEVICE_TRACING " |
| 1702 | #ifdef CONFIG_IWLWIFI_DEVICE_TRACING |
| 1703 | "enabled\n"); |
| 1704 | #else |
| 1705 | "disabled\n"); |
| 1706 | #endif |
| 1707 | |
| 1708 | dev_printk(KERN_INFO, bus(priv)->dev, "CONFIG_IWLWIFI_DEVICE_TESTMODE " |
| 1709 | #ifdef CONFIG_IWLWIFI_DEVICE_TESTMODE |
| 1710 | "enabled\n"); |
| 1711 | #else |
| 1712 | "disabled\n"); |
| 1713 | #endif |
| 1714 | dev_printk(KERN_INFO, bus(priv)->dev, "CONFIG_IWLWIFI_P2P " |
| 1715 | #ifdef CONFIG_IWLWIFI_P2P |
| 1716 | "enabled\n"); |
| 1717 | #else |
| 1718 | "disabled\n"); |
| 1719 | #endif |
| 1720 | } |
| 1721 | |
| 1722 | int iwl_probe(struct iwl_bus *bus, const struct iwl_trans_ops *trans_ops, |
| 1723 | struct iwl_cfg *cfg) |
| 1724 | { |
| 1725 | int err = 0; |
| 1726 | struct iwl_priv *priv; |
| 1727 | struct ieee80211_hw *hw; |
| 1728 | u16 num_mac; |
| 1729 | u32 hw_rev; |
| 1730 | |
| 1731 | /************************ |
| 1732 | * 1. Allocating HW data |
| 1733 | ************************/ |
| 1734 | hw = iwl_alloc_all(); |
| 1735 | if (!hw) { |
| 1736 | pr_err("%s: Cannot allocate network device\n", cfg->name); |
| 1737 | err = -ENOMEM; |
| 1738 | goto out; |
| 1739 | } |
| 1740 | |
| 1741 | priv = hw->priv; |
| 1742 | priv->shrd = &priv->_shrd; |
| 1743 | bus->shrd = priv->shrd; |
| 1744 | priv->shrd->bus = bus; |
| 1745 | priv->shrd->priv = priv; |
| 1746 | |
| 1747 | priv->shrd->trans = trans_ops->alloc(priv->shrd); |
| 1748 | if (priv->shrd->trans == NULL) { |
| 1749 | err = -ENOMEM; |
| 1750 | goto out_free_traffic_mem; |
| 1751 | } |
| 1752 | |
| 1753 | /* At this point both hw and priv are allocated. */ |
| 1754 | |
| 1755 | SET_IEEE80211_DEV(hw, bus(priv)->dev); |
| 1756 | |
| 1757 | /* what debugging capabilities we have */ |
| 1758 | iwl_debug_config(priv); |
| 1759 | |
| 1760 | IWL_DEBUG_INFO(priv, "*** LOAD DRIVER ***\n"); |
| 1761 | priv->cfg = cfg; |
| 1762 | |
| 1763 | /* is antenna coupling more than 35dB ? */ |
| 1764 | priv->bt_ant_couple_ok = |
| 1765 | (iwlagn_mod_params.ant_coupling > |
| 1766 | IWL_BT_ANTENNA_COUPLING_THRESHOLD) ? |
| 1767 | true : false; |
| 1768 | |
| 1769 | /* enable/disable bt channel inhibition */ |
| 1770 | priv->bt_ch_announce = iwlagn_mod_params.bt_ch_announce; |
| 1771 | IWL_DEBUG_INFO(priv, "BT channel inhibition is %s\n", |
| 1772 | (priv->bt_ch_announce) ? "On" : "Off"); |
| 1773 | |
| 1774 | if (iwl_alloc_traffic_mem(priv)) |
| 1775 | IWL_ERR(priv, "Not enough memory to generate traffic log\n"); |
| 1776 | |
| 1777 | /* these spin locks will be used in apm_ops.init and EEPROM access |
| 1778 | * we should init now |
| 1779 | */ |
| 1780 | spin_lock_init(&bus(priv)->reg_lock); |
| 1781 | spin_lock_init(&priv->shrd->lock); |
| 1782 | |
| 1783 | /* |
| 1784 | * stop and reset the on-board processor just in case it is in a |
| 1785 | * strange state ... like being left stranded by a primary kernel |
| 1786 | * and this is now the kdump kernel trying to start up |
| 1787 | */ |
| 1788 | iwl_write32(bus(priv), CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET); |
| 1789 | |
| 1790 | /*********************** |
| 1791 | * 3. Read REV register |
| 1792 | ***********************/ |
| 1793 | hw_rev = iwl_hw_detect(priv); |
| 1794 | IWL_INFO(priv, "Detected %s, REV=0x%X\n", |
| 1795 | priv->cfg->name, hw_rev); |
| 1796 | |
| 1797 | err = iwl_trans_request_irq(trans(priv)); |
| 1798 | if (err) |
| 1799 | goto out_free_trans; |
| 1800 | |
| 1801 | if (iwl_trans_prepare_card_hw(trans(priv))) { |
| 1802 | err = -EIO; |
| 1803 | IWL_WARN(priv, "Failed, HW not ready\n"); |
| 1804 | goto out_free_trans; |
| 1805 | } |
| 1806 | |
| 1807 | /***************** |
| 1808 | * 4. Read EEPROM |
| 1809 | *****************/ |
| 1810 | /* Read the EEPROM */ |
| 1811 | err = iwl_eeprom_init(priv, hw_rev); |
| 1812 | if (err) { |
| 1813 | IWL_ERR(priv, "Unable to init EEPROM\n"); |
| 1814 | goto out_free_trans; |
| 1815 | } |
| 1816 | err = iwl_eeprom_check_version(priv); |
| 1817 | if (err) |
| 1818 | goto out_free_eeprom; |
| 1819 | |
| 1820 | err = iwl_eeprom_check_sku(priv); |
| 1821 | if (err) |
| 1822 | goto out_free_eeprom; |
| 1823 | |
| 1824 | /* extract MAC Address */ |
| 1825 | iwl_eeprom_get_mac(priv->shrd, priv->addresses[0].addr); |
| 1826 | IWL_DEBUG_INFO(priv, "MAC address: %pM\n", priv->addresses[0].addr); |
| 1827 | priv->hw->wiphy->addresses = priv->addresses; |
| 1828 | priv->hw->wiphy->n_addresses = 1; |
| 1829 | num_mac = iwl_eeprom_query16(priv->shrd, EEPROM_NUM_MAC_ADDRESS); |
| 1830 | if (num_mac > 1) { |
| 1831 | memcpy(priv->addresses[1].addr, priv->addresses[0].addr, |
| 1832 | ETH_ALEN); |
| 1833 | priv->addresses[1].addr[5]++; |
| 1834 | priv->hw->wiphy->n_addresses++; |
| 1835 | } |
| 1836 | |
| 1837 | /************************ |
| 1838 | * 5. Setup HW constants |
| 1839 | ************************/ |
| 1840 | if (iwl_set_hw_params(priv)) { |
| 1841 | err = -ENOENT; |
| 1842 | IWL_ERR(priv, "failed to set hw parameters\n"); |
| 1843 | goto out_free_eeprom; |
| 1844 | } |
| 1845 | |
| 1846 | /******************* |
| 1847 | * 6. Setup priv |
| 1848 | *******************/ |
| 1849 | |
| 1850 | err = iwl_init_drv(priv); |
| 1851 | if (err) |
| 1852 | goto out_free_eeprom; |
| 1853 | /* At this point both hw and priv are initialized. */ |
| 1854 | |
| 1855 | /******************** |
| 1856 | * 7. Setup services |
| 1857 | ********************/ |
| 1858 | iwl_setup_deferred_work(priv); |
| 1859 | iwl_setup_rx_handlers(priv); |
| 1860 | iwl_testmode_init(priv); |
| 1861 | |
| 1862 | /********************************************* |
| 1863 | * 8. Enable interrupts |
| 1864 | *********************************************/ |
| 1865 | |
| 1866 | iwl_enable_rfkill_int(priv); |
| 1867 | |
| 1868 | /* If platform's RF_KILL switch is NOT set to KILL */ |
| 1869 | if (iwl_read32(bus(priv), |
| 1870 | CSR_GP_CNTRL) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW) |
| 1871 | clear_bit(STATUS_RF_KILL_HW, &priv->shrd->status); |
| 1872 | else |
| 1873 | set_bit(STATUS_RF_KILL_HW, &priv->shrd->status); |
| 1874 | |
| 1875 | wiphy_rfkill_set_hw_state(priv->hw->wiphy, |
| 1876 | test_bit(STATUS_RF_KILL_HW, &priv->shrd->status)); |
| 1877 | |
| 1878 | iwl_power_initialize(priv); |
| 1879 | iwl_tt_initialize(priv); |
| 1880 | |
| 1881 | init_completion(&priv->firmware_loading_complete); |
| 1882 | |
| 1883 | err = iwl_request_firmware(priv, true); |
| 1884 | if (err) |
| 1885 | goto out_destroy_workqueue; |
| 1886 | |
| 1887 | return 0; |
| 1888 | |
| 1889 | out_destroy_workqueue: |
| 1890 | destroy_workqueue(priv->shrd->workqueue); |
| 1891 | priv->shrd->workqueue = NULL; |
| 1892 | iwl_uninit_drv(priv); |
| 1893 | out_free_eeprom: |
| 1894 | iwl_eeprom_free(priv->shrd); |
| 1895 | out_free_trans: |
| 1896 | iwl_trans_free(trans(priv)); |
| 1897 | out_free_traffic_mem: |
| 1898 | iwl_free_traffic_mem(priv); |
| 1899 | ieee80211_free_hw(priv->hw); |
| 1900 | out: |
| 1901 | return err; |
| 1902 | } |
| 1903 | |
| 1904 | void __devexit iwl_remove(struct iwl_priv * priv) |
| 1905 | { |
| 1906 | wait_for_completion(&priv->firmware_loading_complete); |
| 1907 | |
| 1908 | IWL_DEBUG_INFO(priv, "*** UNLOAD DRIVER ***\n"); |
| 1909 | |
| 1910 | iwl_dbgfs_unregister(priv); |
| 1911 | |
| 1912 | /* ieee80211_unregister_hw call wil cause iwlagn_mac_stop to |
| 1913 | * to be called and iwl_down since we are removing the device |
| 1914 | * we need to set STATUS_EXIT_PENDING bit. |
| 1915 | */ |
| 1916 | set_bit(STATUS_EXIT_PENDING, &priv->shrd->status); |
| 1917 | |
| 1918 | iwl_testmode_cleanup(priv); |
| 1919 | iwl_leds_exit(priv); |
| 1920 | |
| 1921 | if (priv->mac80211_registered) { |
| 1922 | ieee80211_unregister_hw(priv->hw); |
| 1923 | priv->mac80211_registered = 0; |
| 1924 | } |
| 1925 | |
| 1926 | iwl_tt_exit(priv); |
| 1927 | |
| 1928 | /*This will stop the queues, move the device to low power state */ |
| 1929 | iwl_trans_stop_device(trans(priv)); |
| 1930 | |
| 1931 | iwl_dealloc_ucode(trans(priv)); |
| 1932 | |
| 1933 | iwl_eeprom_free(priv->shrd); |
| 1934 | |
| 1935 | /*netif_stop_queue(dev); */ |
| 1936 | flush_workqueue(priv->shrd->workqueue); |
| 1937 | |
| 1938 | /* ieee80211_unregister_hw calls iwlagn_mac_stop, which flushes |
| 1939 | * priv->shrd->workqueue... so we can't take down the workqueue |
| 1940 | * until now... */ |
| 1941 | destroy_workqueue(priv->shrd->workqueue); |
| 1942 | priv->shrd->workqueue = NULL; |
| 1943 | iwl_free_traffic_mem(priv); |
| 1944 | |
| 1945 | iwl_trans_free(trans(priv)); |
| 1946 | |
| 1947 | iwl_uninit_drv(priv); |
| 1948 | |
| 1949 | dev_kfree_skb(priv->beacon_skb); |
| 1950 | |
| 1951 | ieee80211_free_hw(priv->hw); |
| 1952 | } |
| 1953 | |
| 1954 | |
| 1955 | /***************************************************************************** |
| 1956 | * |
| 1957 | * driver and module entry point |
| 1958 | * |
| 1959 | *****************************************************************************/ |
| 1960 | static int __init iwl_init(void) |
| 1961 | { |
| 1962 | |
| 1963 | int ret; |
| 1964 | pr_info(DRV_DESCRIPTION ", " DRV_VERSION "\n"); |
| 1965 | pr_info(DRV_COPYRIGHT "\n"); |
| 1966 | |
| 1967 | ret = iwlagn_rate_control_register(); |
| 1968 | if (ret) { |
| 1969 | pr_err("Unable to register rate control algorithm: %d\n", ret); |
| 1970 | return ret; |
| 1971 | } |
| 1972 | |
| 1973 | ret = iwl_pci_register_driver(); |
| 1974 | |
| 1975 | if (ret) |
| 1976 | goto error_register; |
| 1977 | return ret; |
| 1978 | |
| 1979 | error_register: |
| 1980 | iwlagn_rate_control_unregister(); |
| 1981 | return ret; |
| 1982 | } |
| 1983 | |
| 1984 | static void __exit iwl_exit(void) |
| 1985 | { |
| 1986 | iwl_pci_unregister_driver(); |
| 1987 | iwlagn_rate_control_unregister(); |
| 1988 | } |
| 1989 | |
| 1990 | module_exit(iwl_exit); |
| 1991 | module_init(iwl_init); |
| 1992 | |
| 1993 | #ifdef CONFIG_IWLWIFI_DEBUG |
| 1994 | module_param_named(debug, iwlagn_mod_params.debug_level, uint, |
| 1995 | S_IRUGO | S_IWUSR); |
| 1996 | MODULE_PARM_DESC(debug, "debug output mask"); |
| 1997 | #endif |
| 1998 | |
| 1999 | module_param_named(swcrypto, iwlagn_mod_params.sw_crypto, int, S_IRUGO); |
| 2000 | MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])"); |
| 2001 | module_param_named(queues_num, iwlagn_mod_params.num_of_queues, int, S_IRUGO); |
| 2002 | MODULE_PARM_DESC(queues_num, "number of hw queues."); |
| 2003 | module_param_named(11n_disable, iwlagn_mod_params.disable_11n, int, S_IRUGO); |
| 2004 | MODULE_PARM_DESC(11n_disable, "disable 11n functionality"); |
| 2005 | module_param_named(amsdu_size_8K, iwlagn_mod_params.amsdu_size_8K, |
| 2006 | int, S_IRUGO); |
| 2007 | MODULE_PARM_DESC(amsdu_size_8K, "enable 8K amsdu size"); |
| 2008 | module_param_named(fw_restart, iwlagn_mod_params.restart_fw, int, S_IRUGO); |
| 2009 | MODULE_PARM_DESC(fw_restart, "restart firmware in case of error"); |
| 2010 | |
| 2011 | module_param_named(ucode_alternative, |
| 2012 | iwlagn_mod_params.wanted_ucode_alternative, |
| 2013 | int, S_IRUGO); |
| 2014 | MODULE_PARM_DESC(ucode_alternative, |
| 2015 | "specify ucode alternative to use from ucode file"); |
| 2016 | |
| 2017 | module_param_named(antenna_coupling, iwlagn_mod_params.ant_coupling, |
| 2018 | int, S_IRUGO); |
| 2019 | MODULE_PARM_DESC(antenna_coupling, |
| 2020 | "specify antenna coupling in dB (defualt: 0 dB)"); |
| 2021 | |
| 2022 | module_param_named(bt_ch_inhibition, iwlagn_mod_params.bt_ch_announce, |
| 2023 | bool, S_IRUGO); |
| 2024 | MODULE_PARM_DESC(bt_ch_inhibition, |
| 2025 | "Enable BT channel inhibition (default: enable)"); |
| 2026 | |
| 2027 | module_param_named(plcp_check, iwlagn_mod_params.plcp_check, bool, S_IRUGO); |
| 2028 | MODULE_PARM_DESC(plcp_check, "Check plcp health (default: 1 [enabled])"); |
| 2029 | |
| 2030 | module_param_named(ack_check, iwlagn_mod_params.ack_check, bool, S_IRUGO); |
| 2031 | MODULE_PARM_DESC(ack_check, "Check ack health (default: 0 [disabled])"); |
| 2032 | |
| 2033 | module_param_named(wd_disable, iwlagn_mod_params.wd_disable, int, S_IRUGO); |
| 2034 | MODULE_PARM_DESC(wd_disable, |
| 2035 | "Disable stuck queue watchdog timer 0=system default, " |
| 2036 | "1=disable, 2=enable (default: 0)"); |
| 2037 | |
| 2038 | /* |
| 2039 | * set bt_coex_active to true, uCode will do kill/defer |
| 2040 | * every time the priority line is asserted (BT is sending signals on the |
| 2041 | * priority line in the PCIx). |
| 2042 | * set bt_coex_active to false, uCode will ignore the BT activity and |
| 2043 | * perform the normal operation |
| 2044 | * |
| 2045 | * User might experience transmit issue on some platform due to WiFi/BT |
| 2046 | * co-exist problem. The possible behaviors are: |
| 2047 | * Able to scan and finding all the available AP |
| 2048 | * Not able to associate with any AP |
| 2049 | * On those platforms, WiFi communication can be restored by set |
| 2050 | * "bt_coex_active" module parameter to "false" |
| 2051 | * |
| 2052 | * default: bt_coex_active = true (BT_COEX_ENABLE) |
| 2053 | */ |
| 2054 | module_param_named(bt_coex_active, iwlagn_mod_params.bt_coex_active, |
| 2055 | bool, S_IRUGO); |
| 2056 | MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)"); |
| 2057 | |
| 2058 | module_param_named(led_mode, iwlagn_mod_params.led_mode, int, S_IRUGO); |
| 2059 | MODULE_PARM_DESC(led_mode, "0=system default, " |
| 2060 | "1=On(RF On)/Off(RF Off), 2=blinking (default: 0)"); |
| 2061 | |
| 2062 | module_param_named(power_save, iwlagn_mod_params.power_save, |
| 2063 | bool, S_IRUGO); |
| 2064 | MODULE_PARM_DESC(power_save, |
| 2065 | "enable WiFi power management (default: disable)"); |
| 2066 | |
| 2067 | module_param_named(power_level, iwlagn_mod_params.power_level, |
| 2068 | int, S_IRUGO); |
| 2069 | MODULE_PARM_DESC(power_level, |
| 2070 | "default power save level (range from 1 - 5, default: 1)"); |
| 2071 | |
| 2072 | module_param_named(auto_agg, iwlagn_mod_params.auto_agg, |
| 2073 | bool, S_IRUGO); |
| 2074 | MODULE_PARM_DESC(auto_agg, |
| 2075 | "enable agg w/o check traffic load (default: enable)"); |
| 2076 | |
| 2077 | /* |
| 2078 | * For now, keep using power level 1 instead of automatically |
| 2079 | * adjusting ... |
| 2080 | */ |
| 2081 | module_param_named(no_sleep_autoadjust, iwlagn_mod_params.no_sleep_autoadjust, |
| 2082 | bool, S_IRUGO); |
| 2083 | MODULE_PARM_DESC(no_sleep_autoadjust, |
| 2084 | "don't automatically adjust sleep level " |
| 2085 | "according to maximum network latency (default: true)"); |