1 /* 2 * Copyright (c) 2010 Atheros Communications Inc. 3 * 4 * Permission to use, copy, modify, and/or distribute this software for any 5 * purpose with or without fee is hereby granted, provided that the above 6 * copyright notice and this permission notice appear in all copies. 7 * 8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 15 */ 16 17 #ifndef HTC_H 18 #define HTC_H 19 20 #include <linux/module.h> 21 #include <linux/usb.h> 22 #include <linux/firmware.h> 23 #include <linux/skbuff.h> 24 #include <linux/netdevice.h> 25 #include <linux/leds.h> 26 #include <linux/slab.h> 27 #include <net/mac80211.h> 28 29 #include "common.h" 30 #include "htc_hst.h" 31 #include "hif_usb.h" 32 #include "wmi.h" 33 34 #define ATH_STA_SHORT_CALINTERVAL 1000 /* 1 second */ 35 #define ATH_AP_SHORT_CALINTERVAL 100 /* 100 ms */ 36 #define ATH_ANI_POLLINTERVAL 100 /* 100 ms */ 37 #define ATH_LONG_CALINTERVAL 30000 /* 30 seconds */ 38 #define ATH_RESTART_CALINTERVAL 1200000 /* 20 minutes */ 39 40 #define ATH_DEFAULT_BMISS_LIMIT 10 41 #define IEEE80211_MS_TO_TU(x) (((x) * 1000) / 1024) 42 #define TSF_TO_TU(_h, _l) \ 43 ((((u32)(_h)) << 22) | (((u32)(_l)) >> 10)) 44 45 extern struct ieee80211_ops ath9k_htc_ops; 46 extern int htc_modparam_nohwcrypt; 47 48 enum htc_phymode { 49 HTC_MODE_AUTO = 0, 50 HTC_MODE_11A = 1, 51 HTC_MODE_11B = 2, 52 HTC_MODE_11G = 3, 53 HTC_MODE_FH = 4, 54 HTC_MODE_TURBO_A = 5, 55 HTC_MODE_TURBO_G = 6, 56 HTC_MODE_11NA = 7, 57 HTC_MODE_11NG = 8 58 }; 59 60 enum htc_opmode { 61 HTC_M_STA = 1, 62 HTC_M_IBSS = 0, 63 HTC_M_AHDEMO = 3, 64 HTC_M_HOSTAP = 6, 65 HTC_M_MONITOR = 8, 66 HTC_M_WDS = 2 67 }; 68 69 #define ATH9K_HTC_HDRSPACE sizeof(struct htc_frame_hdr) 70 #define ATH9K_HTC_AMPDU 1 71 #define ATH9K_HTC_NORMAL 2 72 73 #define ATH9K_HTC_TX_CTSONLY 0x1 74 #define ATH9K_HTC_TX_RTSCTS 0x2 75 #define ATH9K_HTC_TX_USE_MIN_RATE 0x100 76 77 struct tx_frame_hdr { 78 u8 data_type; 79 u8 node_idx; 80 u8 vif_idx; 81 u8 tidno; 82 __be32 flags; /* ATH9K_HTC_TX_* */ 83 u8 key_type; 84 u8 keyix; 85 u8 reserved[26]; 86 } __packed; 87 88 struct tx_mgmt_hdr { 89 u8 node_idx; 90 u8 vif_idx; 91 u8 tidno; 92 u8 flags; 93 u8 key_type; 94 u8 keyix; 95 u16 reserved; 96 } __packed; 97 98 struct tx_beacon_header { 99 u8 vif_index; 100 u8 len_changed; 101 u16 rev; 102 } __packed; 103 104 struct ath9k_htc_target_hw { 105 u32 flags; 106 u32 flags_ext; 107 u32 ampdu_limit; 108 u8 ampdu_subframes; 109 u8 tx_chainmask; 110 u8 tx_chainmask_legacy; 111 u8 rtscts_ratecode; 112 u8 protmode; 113 } __packed; 114 115 struct ath9k_htc_cap_target { 116 u32 flags; 117 u32 flags_ext; 118 u32 ampdu_limit; 119 u8 ampdu_subframes; 120 u8 tx_chainmask; 121 u8 tx_chainmask_legacy; 122 u8 rtscts_ratecode; 123 u8 protmode; 124 } __packed; 125 126 struct ath9k_htc_target_vif { 127 u8 index; 128 u8 des_bssid[ETH_ALEN]; 129 __be32 opmode; 130 u8 myaddr[ETH_ALEN]; 131 u8 bssid[ETH_ALEN]; 132 u32 flags; 133 u32 flags_ext; 134 u16 ps_sta; 135 __be16 rtsthreshold; 136 u8 ath_cap; 137 u8 node; 138 s8 mcast_rate; 139 } __packed; 140 141 #define ATH_HTC_STA_AUTH 0x0001 142 #define ATH_HTC_STA_QOS 0x0002 143 #define ATH_HTC_STA_ERP 0x0004 144 #define ATH_HTC_STA_HT 0x0008 145 146 /* FIXME: UAPSD variables */ 147 struct ath9k_htc_target_sta { 148 u16 associd; 149 u16 txpower; 150 u32 ucastkey; 151 u8 macaddr[ETH_ALEN]; 152 u8 bssid[ETH_ALEN]; 153 u8 sta_index; 154 u8 vif_index; 155 u8 vif_sta; 156 __be16 flags; /* ATH_HTC_STA_* */ 157 u16 htcap; 158 u8 valid; 159 u16 capinfo; 160 struct ath9k_htc_target_hw *hw; 161 struct ath9k_htc_target_vif *vif; 162 u16 txseqmgmt; 163 u8 is_vif_sta; 164 u16 maxampdu; 165 u16 iv16; 166 u32 iv32; 167 } __packed; 168 169 struct ath9k_htc_target_aggr { 170 u8 sta_index; 171 u8 tidno; 172 u8 aggr_enable; 173 u8 padding; 174 } __packed; 175 176 #define ATH_HTC_RATE_MAX 30 177 178 #define WLAN_RC_DS_FLAG 0x01 179 #define WLAN_RC_40_FLAG 0x02 180 #define WLAN_RC_SGI_FLAG 0x04 181 #define WLAN_RC_HT_FLAG 0x08 182 183 struct ath9k_htc_rateset { 184 u8 rs_nrates; 185 u8 rs_rates[ATH_HTC_RATE_MAX]; 186 }; 187 188 struct ath9k_htc_rate { 189 struct ath9k_htc_rateset legacy_rates; 190 struct ath9k_htc_rateset ht_rates; 191 } __packed; 192 193 struct ath9k_htc_target_rate { 194 u8 sta_index; 195 u8 isnew; 196 __be32 capflags; 197 struct ath9k_htc_rate rates; 198 }; 199 200 struct ath9k_htc_target_stats { 201 __be32 tx_shortretry; 202 __be32 tx_longretry; 203 __be32 tx_xretries; 204 __be32 ht_txunaggr_xretry; 205 __be32 ht_tx_xretries; 206 } __packed; 207 208 #define ATH9K_HTC_MAX_VIF 2 209 #define ATH9K_HTC_MAX_BCN_VIF 2 210 211 #define INC_VIF(_priv, _type) do { \ 212 switch (_type) { \ 213 case NL80211_IFTYPE_STATION: \ 214 _priv->num_sta_vif++; \ 215 break; \ 216 case NL80211_IFTYPE_ADHOC: \ 217 _priv->num_ibss_vif++; \ 218 break; \ 219 case NL80211_IFTYPE_AP: \ 220 _priv->num_ap_vif++; \ 221 break; \ 222 default: \ 223 break; \ 224 } \ 225 } while (0) 226 227 #define DEC_VIF(_priv, _type) do { \ 228 switch (_type) { \ 229 case NL80211_IFTYPE_STATION: \ 230 _priv->num_sta_vif--; \ 231 break; \ 232 case NL80211_IFTYPE_ADHOC: \ 233 _priv->num_ibss_vif--; \ 234 break; \ 235 case NL80211_IFTYPE_AP: \ 236 _priv->num_ap_vif--; \ 237 break; \ 238 default: \ 239 break; \ 240 } \ 241 } while (0) 242 243 struct ath9k_htc_vif { 244 u8 index; 245 u16 seq_no; 246 bool beacon_configured; 247 int bslot; 248 __le64 tsfadjust; 249 }; 250 251 struct ath9k_vif_iter_data { 252 const u8 *hw_macaddr; 253 u8 mask[ETH_ALEN]; 254 }; 255 256 #define ATH9K_HTC_MAX_STA 8 257 #define ATH9K_HTC_MAX_TID 8 258 259 enum tid_aggr_state { 260 AGGR_STOP = 0, 261 AGGR_PROGRESS, 262 AGGR_START, 263 AGGR_OPERATIONAL 264 }; 265 266 struct ath9k_htc_sta { 267 u8 index; 268 enum tid_aggr_state tid_state[ATH9K_HTC_MAX_TID]; 269 }; 270 271 #define ATH9K_HTC_RXBUF 256 272 #define HTC_RX_FRAME_HEADER_SIZE 40 273 274 struct ath9k_htc_rxbuf { 275 bool in_process; 276 struct sk_buff *skb; 277 struct ath_htc_rx_status rxstatus; 278 struct list_head list; 279 }; 280 281 struct ath9k_htc_rx { 282 int last_rssi; /* FIXME: per-STA */ 283 struct list_head rxbuf; 284 spinlock_t rxbuflock; 285 }; 286 287 struct ath9k_htc_tx_ctl { 288 u8 type; /* ATH9K_HTC_* */ 289 }; 290 291 #ifdef CONFIG_ATH9K_HTC_DEBUGFS 292 293 #define TX_STAT_INC(c) (hif_dev->htc_handle->drv_priv->debug.tx_stats.c++) 294 #define RX_STAT_INC(c) (hif_dev->htc_handle->drv_priv->debug.rx_stats.c++) 295 296 #define TX_QSTAT_INC(q) (priv->debug.tx_stats.queue_stats[q]++) 297 298 struct ath_tx_stats { 299 u32 buf_queued; 300 u32 buf_completed; 301 u32 skb_queued; 302 u32 skb_completed; 303 u32 skb_dropped; 304 u32 queue_stats[WME_NUM_AC]; 305 }; 306 307 struct ath_rx_stats { 308 u32 skb_allocated; 309 u32 skb_completed; 310 u32 skb_dropped; 311 }; 312 313 struct ath9k_debug { 314 struct dentry *debugfs_phy; 315 struct dentry *debugfs_tgt_stats; 316 struct dentry *debugfs_xmit; 317 struct dentry *debugfs_recv; 318 struct ath_tx_stats tx_stats; 319 struct ath_rx_stats rx_stats; 320 u32 txrate; 321 }; 322 323 #else 324 325 #define TX_STAT_INC(c) do { } while (0) 326 #define RX_STAT_INC(c) do { } while (0) 327 328 #define TX_QSTAT_INC(c) do { } while (0) 329 330 #endif /* CONFIG_ATH9K_HTC_DEBUGFS */ 331 332 #define ATH_LED_PIN_DEF 1 333 #define ATH_LED_PIN_9287 10 334 #define ATH_LED_PIN_9271 15 335 #define ATH_LED_PIN_7010 12 336 #define ATH_LED_ON_DURATION_IDLE 350 /* in msecs */ 337 #define ATH_LED_OFF_DURATION_IDLE 250 /* in msecs */ 338 339 enum ath_led_type { 340 ATH_LED_RADIO, 341 ATH_LED_ASSOC, 342 ATH_LED_TX, 343 ATH_LED_RX 344 }; 345 346 struct ath_led { 347 struct ath9k_htc_priv *priv; 348 struct led_classdev led_cdev; 349 enum ath_led_type led_type; 350 struct delayed_work brightness_work; 351 char name[32]; 352 bool registered; 353 int brightness; 354 }; 355 356 #define BSTUCK_THRESHOLD 10 357 358 struct htc_beacon_config { 359 struct ieee80211_vif *bslot[ATH9K_HTC_MAX_BCN_VIF]; 360 u16 beacon_interval; 361 u16 dtim_period; 362 u16 bmiss_timeout; 363 u32 bmiss_cnt; 364 }; 365 366 struct ath_btcoex { 367 u32 bt_priority_cnt; 368 unsigned long bt_priority_time; 369 int bt_stomp_type; /* Types of BT stomping */ 370 u32 btcoex_no_stomp; 371 u32 btcoex_period; 372 u32 btscan_no_stomp; 373 }; 374 375 void ath_htc_init_btcoex_work(struct ath9k_htc_priv *priv); 376 void ath_htc_resume_btcoex_work(struct ath9k_htc_priv *priv); 377 void ath_htc_cancel_btcoex_work(struct ath9k_htc_priv *priv); 378 379 #define OP_INVALID BIT(0) 380 #define OP_SCANNING BIT(1) 381 #define OP_LED_ASSOCIATED BIT(2) 382 #define OP_LED_ON BIT(3) 383 #define OP_ENABLE_BEACON BIT(4) 384 #define OP_LED_DEINIT BIT(5) 385 #define OP_BT_PRIORITY_DETECTED BIT(6) 386 #define OP_BT_SCAN BIT(7) 387 #define OP_ANI_RUNNING BIT(8) 388 #define OP_TSF_RESET BIT(9) 389 390 struct ath9k_htc_priv { 391 struct device *dev; 392 struct ieee80211_hw *hw; 393 struct ath_hw *ah; 394 struct htc_target *htc; 395 struct wmi *wmi; 396 397 u16 fw_version_major; 398 u16 fw_version_minor; 399 400 enum htc_endpoint_id wmi_cmd_ep; 401 enum htc_endpoint_id beacon_ep; 402 enum htc_endpoint_id cab_ep; 403 enum htc_endpoint_id uapsd_ep; 404 enum htc_endpoint_id mgmt_ep; 405 enum htc_endpoint_id data_be_ep; 406 enum htc_endpoint_id data_bk_ep; 407 enum htc_endpoint_id data_vi_ep; 408 enum htc_endpoint_id data_vo_ep; 409 410 u8 vif_slot; 411 u8 mon_vif_idx; 412 u8 sta_slot; 413 u8 vif_sta_pos[ATH9K_HTC_MAX_VIF]; 414 u8 num_ibss_vif; 415 u8 num_sta_vif; 416 u8 num_ap_vif; 417 418 u16 op_flags; 419 u16 curtxpow; 420 u16 txpowlimit; 421 u16 nvifs; 422 u16 nstations; 423 bool rearm_ani; 424 bool reconfig_beacon; 425 426 struct ath9k_hw_cal_data caldata; 427 428 spinlock_t beacon_lock; 429 430 bool tx_queues_stop; 431 spinlock_t tx_lock; 432 433 struct htc_beacon_config cur_beacon_conf; 434 unsigned int rxfilter; 435 struct tasklet_struct swba_tasklet; 436 struct tasklet_struct rx_tasklet; 437 struct ieee80211_supported_band sbands[IEEE80211_NUM_BANDS]; 438 struct ath9k_htc_rx rx; 439 struct tasklet_struct tx_tasklet; 440 struct sk_buff_head tx_queue; 441 struct delayed_work ani_work; 442 struct work_struct ps_work; 443 struct work_struct fatal_work; 444 445 struct mutex htc_pm_lock; 446 unsigned long ps_usecount; 447 bool ps_enabled; 448 bool ps_idle; 449 450 struct ath_led radio_led; 451 struct ath_led assoc_led; 452 struct ath_led tx_led; 453 struct ath_led rx_led; 454 struct delayed_work ath9k_led_blink_work; 455 int led_on_duration; 456 int led_off_duration; 457 int led_on_cnt; 458 int led_off_cnt; 459 460 int beaconq; 461 int cabq; 462 int hwq_map[WME_NUM_AC]; 463 464 struct ath_btcoex btcoex; 465 struct delayed_work coex_period_work; 466 struct delayed_work duty_cycle_work; 467 #ifdef CONFIG_ATH9K_HTC_DEBUGFS 468 struct ath9k_debug debug; 469 #endif 470 struct mutex mutex; 471 }; 472 473 static inline void ath_read_cachesize(struct ath_common *common, int *csz) 474 { 475 common->bus_ops->read_cachesize(common, csz); 476 } 477 478 void ath9k_htc_reset(struct ath9k_htc_priv *priv); 479 480 void ath9k_htc_assign_bslot(struct ath9k_htc_priv *priv, 481 struct ieee80211_vif *vif); 482 void ath9k_htc_remove_bslot(struct ath9k_htc_priv *priv, 483 struct ieee80211_vif *vif); 484 void ath9k_htc_set_tsfadjust(struct ath9k_htc_priv *priv, 485 struct ieee80211_vif *vif); 486 void ath9k_htc_beaconq_config(struct ath9k_htc_priv *priv); 487 void ath9k_htc_beacon_config(struct ath9k_htc_priv *priv, 488 struct ieee80211_vif *vif); 489 void ath9k_htc_beacon_reconfig(struct ath9k_htc_priv *priv); 490 void ath9k_htc_swba(struct ath9k_htc_priv *priv); 491 492 void ath9k_htc_rxep(void *priv, struct sk_buff *skb, 493 enum htc_endpoint_id ep_id); 494 void ath9k_htc_txep(void *priv, struct sk_buff *skb, enum htc_endpoint_id ep_id, 495 bool txok); 496 void ath9k_htc_beaconep(void *drv_priv, struct sk_buff *skb, 497 enum htc_endpoint_id ep_id, bool txok); 498 499 int ath9k_htc_update_cap_target(struct ath9k_htc_priv *priv); 500 void ath9k_htc_station_work(struct work_struct *work); 501 void ath9k_htc_aggr_work(struct work_struct *work); 502 void ath9k_htc_ani_work(struct work_struct *work); 503 void ath9k_htc_start_ani(struct ath9k_htc_priv *priv); 504 void ath9k_htc_stop_ani(struct ath9k_htc_priv *priv); 505 506 int ath9k_tx_init(struct ath9k_htc_priv *priv); 507 void ath9k_tx_tasklet(unsigned long data); 508 int ath9k_htc_tx_start(struct ath9k_htc_priv *priv, struct sk_buff *skb); 509 void ath9k_tx_cleanup(struct ath9k_htc_priv *priv); 510 bool ath9k_htc_txq_setup(struct ath9k_htc_priv *priv, int subtype); 511 int ath9k_htc_cabq_setup(struct ath9k_htc_priv *priv); 512 int get_hw_qnum(u16 queue, int *hwq_map); 513 int ath_htc_txq_update(struct ath9k_htc_priv *priv, int qnum, 514 struct ath9k_tx_queue_info *qinfo); 515 516 int ath9k_rx_init(struct ath9k_htc_priv *priv); 517 void ath9k_rx_cleanup(struct ath9k_htc_priv *priv); 518 void ath9k_host_rx_init(struct ath9k_htc_priv *priv); 519 void ath9k_rx_tasklet(unsigned long data); 520 u32 ath9k_htc_calcrxfilter(struct ath9k_htc_priv *priv); 521 522 void ath9k_htc_ps_wakeup(struct ath9k_htc_priv *priv); 523 void ath9k_htc_ps_restore(struct ath9k_htc_priv *priv); 524 void ath9k_ps_work(struct work_struct *work); 525 bool ath9k_htc_setpower(struct ath9k_htc_priv *priv, 526 enum ath9k_power_mode mode); 527 528 void ath9k_start_rfkill_poll(struct ath9k_htc_priv *priv); 529 void ath9k_htc_rfkill_poll_state(struct ieee80211_hw *hw); 530 void ath9k_htc_radio_enable(struct ieee80211_hw *hw); 531 void ath9k_htc_radio_disable(struct ieee80211_hw *hw); 532 void ath9k_led_stop_brightness(struct ath9k_htc_priv *priv); 533 void ath9k_init_leds(struct ath9k_htc_priv *priv); 534 void ath9k_deinit_leds(struct ath9k_htc_priv *priv); 535 536 int ath9k_htc_probe_device(struct htc_target *htc_handle, struct device *dev, 537 u16 devid, char *product, u32 drv_info); 538 void ath9k_htc_disconnect_device(struct htc_target *htc_handle, bool hotunplug); 539 #ifdef CONFIG_PM 540 void ath9k_htc_suspend(struct htc_target *htc_handle); 541 int ath9k_htc_resume(struct htc_target *htc_handle); 542 #endif 543 #ifdef CONFIG_ATH9K_HTC_DEBUGFS 544 int ath9k_htc_debug_create_root(void); 545 void ath9k_htc_debug_remove_root(void); 546 int ath9k_htc_init_debug(struct ath_hw *ah); 547 void ath9k_htc_exit_debug(struct ath_hw *ah); 548 #else 549 static inline int ath9k_htc_debug_create_root(void) { return 0; }; 550 static inline void ath9k_htc_debug_remove_root(void) {}; 551 static inline int ath9k_htc_init_debug(struct ath_hw *ah) { return 0; }; 552 static inline void ath9k_htc_exit_debug(struct ath_hw *ah) {}; 553 #endif /* CONFIG_ATH9K_HTC_DEBUGFS */ 554 555 #endif /* HTC_H */ 556