1 /* 2 * Atheros CARL9170 driver 3 * 4 * Driver specific definitions 5 * 6 * Copyright 2008, Johannes Berg <johannes@sipsolutions.net> 7 * Copyright 2009, 2010, Christian Lamparter <chunkeey@googlemail.com> 8 * 9 * This program is free software; you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License as published by 11 * the Free Software Foundation; either version 2 of the License, or 12 * (at your option) any later version. 13 * 14 * This program is distributed in the hope that it will be useful, 15 * but WITHOUT ANY WARRANTY; without even the implied warranty of 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 * GNU General Public License for more details. 18 * 19 * You should have received a copy of the GNU General Public License 20 * along with this program; see the file COPYING. If not, see 21 * http://www.gnu.org/licenses/. 22 * 23 * This file incorporates work covered by the following copyright and 24 * permission notice: 25 * Copyright (c) 2007-2008 Atheros Communications, Inc. 26 * 27 * Permission to use, copy, modify, and/or distribute this software for any 28 * purpose with or without fee is hereby granted, provided that the above 29 * copyright notice and this permission notice appear in all copies. 30 * 31 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 32 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 33 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 34 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 35 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 36 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 37 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 38 */ 39 #ifndef __CARL9170_H 40 #define __CARL9170_H 41 42 #include <linux/kernel.h> 43 #include <linux/firmware.h> 44 #include <linux/completion.h> 45 #include <linux/spinlock.h> 46 #include <linux/hw_random.h> 47 #include <net/cfg80211.h> 48 #include <net/mac80211.h> 49 #include <linux/usb.h> 50 #ifdef CONFIG_CARL9170_LEDS 51 #include <linux/leds.h> 52 #endif /* CONFIG_CARL9170_LEDS */ 53 #ifdef CONFIG_CARL9170_WPC 54 #include <linux/input.h> 55 #endif /* CONFIG_CARL9170_WPC */ 56 #include "eeprom.h" 57 #include "wlan.h" 58 #include "hw.h" 59 #include "fwdesc.h" 60 #include "fwcmd.h" 61 #include "../regd.h" 62 63 #ifdef CONFIG_CARL9170_DEBUGFS 64 #include "debug.h" 65 #endif /* CONFIG_CARL9170_DEBUGFS */ 66 67 #define CARL9170FW_NAME "carl9170-1.fw" 68 69 #define PAYLOAD_MAX (CARL9170_MAX_CMD_LEN / 4 - 1) 70 71 static const u8 ar9170_qmap[__AR9170_NUM_TXQ] = { 3, 2, 1, 0 }; 72 73 enum carl9170_rf_init_mode { 74 CARL9170_RFI_NONE, 75 CARL9170_RFI_WARM, 76 CARL9170_RFI_COLD, 77 }; 78 79 #define CARL9170_MAX_RX_BUFFER_SIZE 8192 80 81 enum carl9170_device_state { 82 CARL9170_UNKNOWN_STATE, 83 CARL9170_STOPPED, 84 CARL9170_IDLE, 85 CARL9170_STARTED, 86 }; 87 88 #define CARL9170_NUM_TID 16 89 #define WME_BA_BMP_SIZE 64 90 #define CARL9170_TX_USER_RATE_TRIES 3 91 92 #define WME_AC_BE 2 93 #define WME_AC_BK 3 94 #define WME_AC_VI 1 95 #define WME_AC_VO 0 96 97 #define TID_TO_WME_AC(_tid) \ 98 ((((_tid) == 0) || ((_tid) == 3)) ? WME_AC_BE : \ 99 (((_tid) == 1) || ((_tid) == 2)) ? WME_AC_BK : \ 100 (((_tid) == 4) || ((_tid) == 5)) ? WME_AC_VI : \ 101 WME_AC_VO) 102 103 #define SEQ_DIFF(_start, _seq) \ 104 (((_start) - (_seq)) & 0x0fff) 105 #define SEQ_PREV(_seq) \ 106 (((_seq) - 1) & 0x0fff) 107 #define SEQ_NEXT(_seq) \ 108 (((_seq) + 1) & 0x0fff) 109 #define BAW_WITHIN(_start, _bawsz, _seqno) \ 110 ((((_seqno) - (_start)) & 0xfff) < (_bawsz)) 111 112 enum carl9170_tid_state { 113 CARL9170_TID_STATE_INVALID, 114 CARL9170_TID_STATE_KILLED, 115 CARL9170_TID_STATE_SHUTDOWN, 116 CARL9170_TID_STATE_SUSPEND, 117 CARL9170_TID_STATE_PROGRESS, 118 CARL9170_TID_STATE_IDLE, 119 CARL9170_TID_STATE_XMIT, 120 }; 121 122 #define CARL9170_BAW_BITS (2 * WME_BA_BMP_SIZE) 123 #define CARL9170_BAW_SIZE (BITS_TO_LONGS(CARL9170_BAW_BITS)) 124 #define CARL9170_BAW_LEN (DIV_ROUND_UP(CARL9170_BAW_BITS, BITS_PER_BYTE)) 125 126 struct carl9170_sta_tid { 127 /* must be the first entry! */ 128 struct list_head list; 129 130 /* temporary list for RCU unlink procedure */ 131 struct list_head tmp_list; 132 133 /* lock for the following data structures */ 134 spinlock_t lock; 135 136 unsigned int counter; 137 enum carl9170_tid_state state; 138 u8 tid; /* TID number ( 0 - 15 ) */ 139 u16 max; /* max. AMPDU size */ 140 141 u16 snx; /* awaiting _next_ frame */ 142 u16 hsn; /* highest _queued_ sequence */ 143 u16 bsn; /* base of the tx/agg bitmap */ 144 unsigned long bitmap[CARL9170_BAW_SIZE]; 145 146 /* Preaggregation reorder queue */ 147 struct sk_buff_head queue; 148 }; 149 150 #define CARL9170_QUEUE_TIMEOUT 256 151 #define CARL9170_BUMP_QUEUE 1000 152 #define CARL9170_TX_TIMEOUT 2500 153 #define CARL9170_JANITOR_DELAY 128 154 #define CARL9170_QUEUE_STUCK_TIMEOUT 5500 155 #define CARL9170_STAT_WORK 30000 156 157 #define CARL9170_NUM_TX_AGG_MAX 30 158 159 /* 160 * Tradeoff between stability/latency and speed. 161 * 162 * AR9170_TXQ_DEPTH is devised by dividing the amount of available 163 * tx buffers with the size of a full ethernet frame + overhead. 164 * 165 * Naturally: The higher the limit, the faster the device CAN send. 166 * However, even a slight over-commitment at the wrong time and the 167 * hardware is doomed to send all already-queued frames at suboptimal 168 * rates. This in turn leads to an enormous amount of unsuccessful 169 * retries => Latency goes up, whereas the throughput goes down. CRASH! 170 */ 171 #define CARL9170_NUM_TX_LIMIT_HARD ((AR9170_TXQ_DEPTH * 3) / 2) 172 #define CARL9170_NUM_TX_LIMIT_SOFT (AR9170_TXQ_DEPTH) 173 174 struct carl9170_tx_queue_stats { 175 unsigned int count; 176 unsigned int limit; 177 unsigned int len; 178 }; 179 180 struct carl9170_vif { 181 unsigned int id; 182 struct ieee80211_vif __rcu *vif; 183 }; 184 185 struct carl9170_vif_info { 186 struct list_head list; 187 bool active; 188 unsigned int id; 189 struct sk_buff *beacon; 190 bool enable_beacon; 191 }; 192 193 #define AR9170_NUM_RX_URBS 16 194 #define AR9170_NUM_RX_URBS_MUL 2 195 #define AR9170_NUM_TX_URBS 8 196 #define AR9170_NUM_RX_URBS_POOL (AR9170_NUM_RX_URBS_MUL * AR9170_NUM_RX_URBS) 197 198 enum carl9170_device_features { 199 CARL9170_WPS_BUTTON = BIT(0), 200 CARL9170_ONE_LED = BIT(1), 201 }; 202 203 #ifdef CONFIG_CARL9170_LEDS 204 struct ar9170; 205 206 struct carl9170_led { 207 struct ar9170 *ar; 208 struct led_classdev l; 209 char name[32]; 210 unsigned int toggled; 211 bool last_state; 212 bool registered; 213 }; 214 #endif /* CONFIG_CARL9170_LEDS */ 215 216 enum carl9170_restart_reasons { 217 CARL9170_RR_NO_REASON = 0, 218 CARL9170_RR_FATAL_FIRMWARE_ERROR, 219 CARL9170_RR_TOO_MANY_FIRMWARE_ERRORS, 220 CARL9170_RR_WATCHDOG, 221 CARL9170_RR_STUCK_TX, 222 CARL9170_RR_UNRESPONSIVE_DEVICE, 223 CARL9170_RR_COMMAND_TIMEOUT, 224 CARL9170_RR_TOO_MANY_PHY_ERRORS, 225 CARL9170_RR_LOST_RSP, 226 CARL9170_RR_INVALID_RSP, 227 CARL9170_RR_USER_REQUEST, 228 229 __CARL9170_RR_LAST, 230 }; 231 232 enum carl9170_erp_modes { 233 CARL9170_ERP_INVALID, 234 CARL9170_ERP_AUTO, 235 CARL9170_ERP_MAC80211, 236 CARL9170_ERP_OFF, 237 CARL9170_ERP_CTS, 238 CARL9170_ERP_RTS, 239 __CARL9170_ERP_NUM, 240 }; 241 242 struct ar9170 { 243 struct ath_common common; 244 struct ieee80211_hw *hw; 245 struct mutex mutex; 246 enum carl9170_device_state state; 247 spinlock_t state_lock; 248 enum carl9170_restart_reasons last_reason; 249 bool registered; 250 251 /* USB */ 252 struct usb_device *udev; 253 struct usb_interface *intf; 254 struct usb_anchor rx_anch; 255 struct usb_anchor rx_work; 256 struct usb_anchor rx_pool; 257 struct usb_anchor tx_wait; 258 struct usb_anchor tx_anch; 259 struct usb_anchor tx_cmd; 260 struct usb_anchor tx_err; 261 struct tasklet_struct usb_tasklet; 262 atomic_t tx_cmd_urbs; 263 atomic_t tx_anch_urbs; 264 atomic_t rx_anch_urbs; 265 atomic_t rx_work_urbs; 266 atomic_t rx_pool_urbs; 267 kernel_ulong_t features; 268 269 /* firmware settings */ 270 struct completion fw_load_wait; 271 struct completion fw_boot_wait; 272 struct { 273 const struct carl9170fw_desc_head *desc; 274 const struct firmware *fw; 275 unsigned int offset; 276 unsigned int address; 277 unsigned int cmd_bufs; 278 unsigned int api_version; 279 unsigned int vif_num; 280 unsigned int err_counter; 281 unsigned int bug_counter; 282 u32 beacon_addr; 283 unsigned int beacon_max_len; 284 bool rx_stream; 285 bool tx_stream; 286 bool rx_filter; 287 bool hw_counters; 288 unsigned int mem_blocks; 289 unsigned int mem_block_size; 290 unsigned int rx_size; 291 unsigned int tx_seq_table; 292 bool ba_filter; 293 } fw; 294 295 /* interface configuration combinations */ 296 struct ieee80211_iface_limit if_comb_limits[1]; 297 struct ieee80211_iface_combination if_combs[1]; 298 299 /* reset / stuck frames/queue detection */ 300 struct work_struct restart_work; 301 struct work_struct ping_work; 302 unsigned int restart_counter; 303 unsigned long queue_stop_timeout[__AR9170_NUM_TXQ]; 304 unsigned long max_queue_stop_timeout[__AR9170_NUM_TXQ]; 305 bool needs_full_reset; 306 bool force_usb_reset; 307 atomic_t pending_restarts; 308 309 /* interface mode settings */ 310 struct list_head vif_list; 311 unsigned long vif_bitmap; 312 unsigned int vifs; 313 struct carl9170_vif vif_priv[AR9170_MAX_VIRTUAL_MAC]; 314 315 /* beaconing */ 316 spinlock_t beacon_lock; 317 unsigned int global_pretbtt; 318 unsigned int global_beacon_int; 319 struct carl9170_vif_info __rcu *beacon_iter; 320 unsigned int beacon_enabled; 321 322 /* cryptographic engine */ 323 u64 usedkeys; 324 bool rx_software_decryption; 325 bool disable_offload; 326 327 /* filter settings */ 328 u64 cur_mc_hash; 329 u32 cur_filter; 330 unsigned int filter_state; 331 unsigned int rx_filter_caps; 332 bool sniffer_enabled; 333 334 /* MAC */ 335 enum carl9170_erp_modes erp_mode; 336 337 /* PHY */ 338 struct ieee80211_channel *channel; 339 unsigned int num_channels; 340 int noise[4]; 341 unsigned int chan_fail; 342 unsigned int total_chan_fail; 343 u8 heavy_clip; 344 u8 ht_settings; 345 struct { 346 u64 active; /* usec */ 347 u64 cca; /* usec */ 348 u64 tx_time; /* usec */ 349 u64 rx_total; 350 u64 rx_overrun; 351 } tally; 352 struct delayed_work stat_work; 353 struct survey_info *survey; 354 355 /* power calibration data */ 356 u8 power_5G_leg[4]; 357 u8 power_2G_cck[4]; 358 u8 power_2G_ofdm[4]; 359 u8 power_5G_ht20[8]; 360 u8 power_5G_ht40[8]; 361 u8 power_2G_ht20[8]; 362 u8 power_2G_ht40[8]; 363 364 #ifdef CONFIG_CARL9170_LEDS 365 /* LED */ 366 struct delayed_work led_work; 367 struct carl9170_led leds[AR9170_NUM_LEDS]; 368 #endif /* CONFIG_CARL9170_LEDS */ 369 370 /* qos queue settings */ 371 spinlock_t tx_stats_lock; 372 struct carl9170_tx_queue_stats tx_stats[__AR9170_NUM_TXQ]; 373 struct ieee80211_tx_queue_params edcf[5]; 374 struct completion tx_flush; 375 376 /* CMD */ 377 int cmd_seq; 378 int readlen; 379 u8 *readbuf; 380 spinlock_t cmd_lock; 381 struct completion cmd_wait; 382 union { 383 __le32 cmd_buf[PAYLOAD_MAX + 1]; 384 struct carl9170_cmd cmd; 385 struct carl9170_rsp rsp; 386 }; 387 388 /* statistics */ 389 unsigned int tx_dropped; 390 unsigned int tx_ack_failures; 391 unsigned int tx_fcs_errors; 392 unsigned int rx_dropped; 393 394 /* EEPROM */ 395 struct ar9170_eeprom eeprom; 396 397 /* tx queuing */ 398 struct sk_buff_head tx_pending[__AR9170_NUM_TXQ]; 399 struct sk_buff_head tx_status[__AR9170_NUM_TXQ]; 400 struct delayed_work tx_janitor; 401 unsigned long tx_janitor_last_run; 402 bool tx_schedule; 403 404 /* tx ampdu */ 405 struct work_struct ampdu_work; 406 spinlock_t tx_ampdu_list_lock; 407 struct carl9170_sta_tid __rcu *tx_ampdu_iter; 408 struct list_head tx_ampdu_list; 409 atomic_t tx_ampdu_upload; 410 atomic_t tx_ampdu_scheduler; 411 atomic_t tx_total_pending; 412 atomic_t tx_total_queued; 413 unsigned int tx_ampdu_list_len; 414 int current_density; 415 int current_factor; 416 bool tx_ampdu_schedule; 417 418 /* internal memory management */ 419 spinlock_t mem_lock; 420 unsigned long *mem_bitmap; 421 atomic_t mem_free_blocks; 422 atomic_t mem_allocs; 423 424 /* rxstream mpdu merge */ 425 struct ar9170_rx_head rx_plcp; 426 bool rx_has_plcp; 427 struct sk_buff *rx_failover; 428 int rx_failover_missing; 429 u32 ampdu_ref; 430 431 /* FIFO for collecting outstanding BlockAckRequest */ 432 struct list_head bar_list[__AR9170_NUM_TXQ]; 433 spinlock_t bar_list_lock[__AR9170_NUM_TXQ]; 434 435 #ifdef CONFIG_CARL9170_WPC 436 struct { 437 bool pbc_state; 438 struct input_dev *pbc; 439 char name[32]; 440 char phys[32]; 441 } wps; 442 #endif /* CONFIG_CARL9170_WPC */ 443 444 #ifdef CONFIG_CARL9170_DEBUGFS 445 struct carl9170_debug debug; 446 struct dentry *debug_dir; 447 #endif /* CONFIG_CARL9170_DEBUGFS */ 448 449 /* PSM */ 450 struct work_struct ps_work; 451 struct { 452 unsigned int dtim_counter; 453 unsigned long last_beacon; 454 unsigned long last_action; 455 unsigned long last_slept; 456 unsigned int sleep_ms; 457 unsigned int off_override; 458 bool state; 459 } ps; 460 461 #ifdef CONFIG_CARL9170_HWRNG 462 # define CARL9170_HWRNG_CACHE_SIZE CARL9170_MAX_CMD_PAYLOAD_LEN 463 struct { 464 struct hwrng rng; 465 bool initialized; 466 char name[30 + 1]; 467 u16 cache[CARL9170_HWRNG_CACHE_SIZE / sizeof(u16)]; 468 unsigned int cache_idx; 469 } rng; 470 #endif /* CONFIG_CARL9170_HWRNG */ 471 }; 472 473 enum carl9170_ps_off_override_reasons { 474 PS_OFF_VIF = BIT(0), 475 PS_OFF_BCN = BIT(1), 476 }; 477 478 struct carl9170_bar_list_entry { 479 struct list_head list; 480 struct rcu_head head; 481 struct sk_buff *skb; 482 }; 483 484 struct carl9170_ba_stats { 485 u8 ampdu_len; 486 u8 ampdu_ack_len; 487 bool clear; 488 bool req; 489 }; 490 491 struct carl9170_sta_info { 492 bool ht_sta; 493 bool sleeping; 494 atomic_t pending_frames; 495 unsigned int ampdu_max_len; 496 struct carl9170_sta_tid __rcu *agg[CARL9170_NUM_TID]; 497 struct carl9170_ba_stats stats[CARL9170_NUM_TID]; 498 }; 499 500 struct carl9170_tx_info { 501 unsigned long timeout; 502 struct ar9170 *ar; 503 struct kref ref; 504 }; 505 506 #define CHK_DEV_STATE(a, s) (((struct ar9170 *)a)->state >= (s)) 507 #define IS_INITIALIZED(a) (CHK_DEV_STATE(a, CARL9170_STOPPED)) 508 #define IS_ACCEPTING_CMD(a) (CHK_DEV_STATE(a, CARL9170_IDLE)) 509 #define IS_STARTED(a) (CHK_DEV_STATE(a, CARL9170_STARTED)) 510 511 static inline void __carl9170_set_state(struct ar9170 *ar, 512 enum carl9170_device_state newstate) 513 { 514 ar->state = newstate; 515 } 516 517 static inline void carl9170_set_state(struct ar9170 *ar, 518 enum carl9170_device_state newstate) 519 { 520 unsigned long flags; 521 522 spin_lock_irqsave(&ar->state_lock, flags); 523 __carl9170_set_state(ar, newstate); 524 spin_unlock_irqrestore(&ar->state_lock, flags); 525 } 526 527 static inline void carl9170_set_state_when(struct ar9170 *ar, 528 enum carl9170_device_state min, enum carl9170_device_state newstate) 529 { 530 unsigned long flags; 531 532 spin_lock_irqsave(&ar->state_lock, flags); 533 if (CHK_DEV_STATE(ar, min)) 534 __carl9170_set_state(ar, newstate); 535 spin_unlock_irqrestore(&ar->state_lock, flags); 536 } 537 538 /* exported interface */ 539 void *carl9170_alloc(size_t priv_size); 540 int carl9170_register(struct ar9170 *ar); 541 void carl9170_unregister(struct ar9170 *ar); 542 void carl9170_free(struct ar9170 *ar); 543 void carl9170_restart(struct ar9170 *ar, const enum carl9170_restart_reasons r); 544 void carl9170_ps_check(struct ar9170 *ar); 545 546 /* USB back-end */ 547 int carl9170_usb_open(struct ar9170 *ar); 548 void carl9170_usb_stop(struct ar9170 *ar); 549 void carl9170_usb_tx(struct ar9170 *ar, struct sk_buff *skb); 550 void carl9170_usb_handle_tx_err(struct ar9170 *ar); 551 int carl9170_exec_cmd(struct ar9170 *ar, const enum carl9170_cmd_oids, 552 u32 plen, void *payload, u32 rlen, void *resp); 553 int __carl9170_exec_cmd(struct ar9170 *ar, struct carl9170_cmd *cmd, 554 const bool free_buf); 555 int carl9170_usb_restart(struct ar9170 *ar); 556 void carl9170_usb_reset(struct ar9170 *ar); 557 558 /* MAC */ 559 int carl9170_init_mac(struct ar9170 *ar); 560 int carl9170_set_qos(struct ar9170 *ar); 561 int carl9170_update_multicast(struct ar9170 *ar, const u64 mc_hast); 562 int carl9170_mod_virtual_mac(struct ar9170 *ar, const unsigned int id, 563 const u8 *mac); 564 int carl9170_set_operating_mode(struct ar9170 *ar); 565 int carl9170_set_beacon_timers(struct ar9170 *ar); 566 int carl9170_set_dyn_sifs_ack(struct ar9170 *ar); 567 int carl9170_set_rts_cts_rate(struct ar9170 *ar); 568 int carl9170_set_ampdu_settings(struct ar9170 *ar); 569 int carl9170_set_slot_time(struct ar9170 *ar); 570 int carl9170_set_mac_rates(struct ar9170 *ar); 571 int carl9170_set_hwretry_limit(struct ar9170 *ar, const u32 max_retry); 572 int carl9170_upload_key(struct ar9170 *ar, const u8 id, const u8 *mac, 573 const u8 ktype, const u8 keyidx, const u8 *keydata, const int keylen); 574 int carl9170_disable_key(struct ar9170 *ar, const u8 id); 575 int carl9170_set_mac_tpc(struct ar9170 *ar, struct ieee80211_channel *channel); 576 577 /* RX */ 578 void carl9170_rx(struct ar9170 *ar, void *buf, unsigned int len); 579 void carl9170_handle_command_response(struct ar9170 *ar, void *buf, u32 len); 580 581 /* TX */ 582 void carl9170_op_tx(struct ieee80211_hw *hw, 583 struct ieee80211_tx_control *control, 584 struct sk_buff *skb); 585 void carl9170_tx_janitor(struct work_struct *work); 586 void carl9170_tx_process_status(struct ar9170 *ar, 587 const struct carl9170_rsp *cmd); 588 void carl9170_tx_status(struct ar9170 *ar, struct sk_buff *skb, 589 const bool success); 590 void carl9170_tx_callback(struct ar9170 *ar, struct sk_buff *skb); 591 void carl9170_tx_drop(struct ar9170 *ar, struct sk_buff *skb); 592 void carl9170_tx_scheduler(struct ar9170 *ar); 593 void carl9170_tx_get_skb(struct sk_buff *skb); 594 int carl9170_tx_put_skb(struct sk_buff *skb); 595 int carl9170_update_beacon(struct ar9170 *ar, const bool submit); 596 597 /* LEDs */ 598 #ifdef CONFIG_CARL9170_LEDS 599 int carl9170_led_register(struct ar9170 *ar); 600 void carl9170_led_unregister(struct ar9170 *ar); 601 #endif /* CONFIG_CARL9170_LEDS */ 602 int carl9170_led_init(struct ar9170 *ar); 603 int carl9170_led_set_state(struct ar9170 *ar, const u32 led_state); 604 605 /* PHY / RF */ 606 int carl9170_set_channel(struct ar9170 *ar, struct ieee80211_channel *channel, 607 enum nl80211_channel_type bw, enum carl9170_rf_init_mode rfi); 608 int carl9170_get_noisefloor(struct ar9170 *ar); 609 610 /* FW */ 611 int carl9170_parse_firmware(struct ar9170 *ar); 612 613 extern struct ieee80211_rate __carl9170_ratetable[]; 614 extern int modparam_noht; 615 616 static inline struct ar9170 *carl9170_get_priv(struct carl9170_vif *carl_vif) 617 { 618 return container_of(carl_vif, struct ar9170, 619 vif_priv[carl_vif->id]); 620 } 621 622 static inline struct ieee80211_hdr *carl9170_get_hdr(struct sk_buff *skb) 623 { 624 return (void *)((struct _carl9170_tx_superframe *) 625 skb->data)->frame_data; 626 } 627 628 static inline u16 get_seq_h(struct ieee80211_hdr *hdr) 629 { 630 return le16_to_cpu(hdr->seq_ctrl) >> 4; 631 } 632 633 static inline u16 carl9170_get_seq(struct sk_buff *skb) 634 { 635 return get_seq_h(carl9170_get_hdr(skb)); 636 } 637 638 static inline u16 get_tid_h(struct ieee80211_hdr *hdr) 639 { 640 return (ieee80211_get_qos_ctl(hdr))[0] & IEEE80211_QOS_CTL_TID_MASK; 641 } 642 643 static inline u16 carl9170_get_tid(struct sk_buff *skb) 644 { 645 return get_tid_h(carl9170_get_hdr(skb)); 646 } 647 648 static inline struct ieee80211_vif * 649 carl9170_get_vif(struct carl9170_vif_info *priv) 650 { 651 return container_of((void *)priv, struct ieee80211_vif, drv_priv); 652 } 653 654 /* Protected by ar->mutex or RCU */ 655 static inline struct ieee80211_vif *carl9170_get_main_vif(struct ar9170 *ar) 656 { 657 struct carl9170_vif_info *cvif; 658 659 list_for_each_entry_rcu(cvif, &ar->vif_list, list) { 660 if (cvif->active) 661 return carl9170_get_vif(cvif); 662 } 663 664 return NULL; 665 } 666 667 static inline bool is_main_vif(struct ar9170 *ar, struct ieee80211_vif *vif) 668 { 669 bool ret; 670 671 rcu_read_lock(); 672 ret = (carl9170_get_main_vif(ar) == vif); 673 rcu_read_unlock(); 674 return ret; 675 } 676 677 #endif /* __CARL9170_H */ 678