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_ANI_POLLINTERVAL 100 /* 100 ms */ 36 #define ATH_LONG_CALINTERVAL 30000 /* 30 seconds */ 37 #define ATH_RESTART_CALINTERVAL 1200000 /* 20 minutes */ 38 39 #define ATH_DEFAULT_BMISS_LIMIT 10 40 #define IEEE80211_MS_TO_TU(x) (((x) * 1000) / 1024) 41 #define TSF_TO_TU(_h, _l) \ 42 ((((u32)(_h)) << 22) | (((u32)(_l)) >> 10)) 43 44 extern struct ieee80211_ops ath9k_htc_ops; 45 extern int htc_modparam_nohwcrypt; 46 47 enum htc_phymode { 48 HTC_MODE_AUTO = 0, 49 HTC_MODE_11A = 1, 50 HTC_MODE_11B = 2, 51 HTC_MODE_11G = 3, 52 HTC_MODE_FH = 4, 53 HTC_MODE_TURBO_A = 5, 54 HTC_MODE_TURBO_G = 6, 55 HTC_MODE_11NA = 7, 56 HTC_MODE_11NG = 8 57 }; 58 59 enum htc_opmode { 60 HTC_M_STA = 1, 61 HTC_M_IBSS = 0, 62 HTC_M_AHDEMO = 3, 63 HTC_M_HOSTAP = 6, 64 HTC_M_MONITOR = 8, 65 HTC_M_WDS = 2 66 }; 67 68 #define ATH9K_HTC_HDRSPACE sizeof(struct htc_frame_hdr) 69 #define ATH9K_HTC_AMPDU 1 70 #define ATH9K_HTC_NORMAL 2 71 72 #define ATH9K_HTC_TX_CTSONLY 0x1 73 #define ATH9K_HTC_TX_RTSCTS 0x2 74 #define ATH9K_HTC_TX_USE_MIN_RATE 0x100 75 76 struct tx_frame_hdr { 77 u8 data_type; 78 u8 node_idx; 79 u8 vif_idx; 80 u8 tidno; 81 __be32 flags; /* ATH9K_HTC_TX_* */ 82 u8 key_type; 83 u8 keyix; 84 u8 reserved[26]; 85 } __packed; 86 87 struct tx_mgmt_hdr { 88 u8 node_idx; 89 u8 vif_idx; 90 u8 tidno; 91 u8 flags; 92 u8 key_type; 93 u8 keyix; 94 u16 reserved; 95 } __packed; 96 97 struct tx_beacon_header { 98 u8 len_changed; 99 u8 vif_index; 100 u16 rev; 101 } __packed; 102 103 struct ath9k_htc_target_hw { 104 u32 flags; 105 u32 flags_ext; 106 u32 ampdu_limit; 107 u8 ampdu_subframes; 108 u8 tx_chainmask; 109 u8 tx_chainmask_legacy; 110 u8 rtscts_ratecode; 111 u8 protmode; 112 } __packed; 113 114 struct ath9k_htc_cap_target { 115 u32 flags; 116 u32 flags_ext; 117 u32 ampdu_limit; 118 u8 ampdu_subframes; 119 u8 tx_chainmask; 120 u8 tx_chainmask_legacy; 121 u8 rtscts_ratecode; 122 u8 protmode; 123 } __packed; 124 125 struct ath9k_htc_target_vif { 126 u8 index; 127 u8 des_bssid[ETH_ALEN]; 128 __be32 opmode; 129 u8 myaddr[ETH_ALEN]; 130 u8 bssid[ETH_ALEN]; 131 u32 flags; 132 u32 flags_ext; 133 u16 ps_sta; 134 __be16 rtsthreshold; 135 u8 ath_cap; 136 u8 node; 137 s8 mcast_rate; 138 } __packed; 139 140 #define ATH_HTC_STA_AUTH 0x0001 141 #define ATH_HTC_STA_QOS 0x0002 142 #define ATH_HTC_STA_ERP 0x0004 143 #define ATH_HTC_STA_HT 0x0008 144 145 /* FIXME: UAPSD variables */ 146 struct ath9k_htc_target_sta { 147 u16 associd; 148 u16 txpower; 149 u32 ucastkey; 150 u8 macaddr[ETH_ALEN]; 151 u8 bssid[ETH_ALEN]; 152 u8 sta_index; 153 u8 vif_index; 154 u8 vif_sta; 155 __be16 flags; /* ATH_HTC_STA_* */ 156 u16 htcap; 157 u8 valid; 158 u16 capinfo; 159 struct ath9k_htc_target_hw *hw; 160 struct ath9k_htc_target_vif *vif; 161 u16 txseqmgmt; 162 u8 is_vif_sta; 163 u16 maxampdu; 164 u16 iv16; 165 u32 iv32; 166 } __packed; 167 168 struct ath9k_htc_target_aggr { 169 u8 sta_index; 170 u8 tidno; 171 u8 aggr_enable; 172 u8 padding; 173 } __packed; 174 175 #define ATH_HTC_RATE_MAX 30 176 177 #define WLAN_RC_DS_FLAG 0x01 178 #define WLAN_RC_40_FLAG 0x02 179 #define WLAN_RC_SGI_FLAG 0x04 180 #define WLAN_RC_HT_FLAG 0x08 181 182 struct ath9k_htc_rateset { 183 u8 rs_nrates; 184 u8 rs_rates[ATH_HTC_RATE_MAX]; 185 }; 186 187 struct ath9k_htc_rate { 188 struct ath9k_htc_rateset legacy_rates; 189 struct ath9k_htc_rateset ht_rates; 190 } __packed; 191 192 struct ath9k_htc_target_rate { 193 u8 sta_index; 194 u8 isnew; 195 __be32 capflags; 196 struct ath9k_htc_rate rates; 197 }; 198 199 struct ath9k_htc_target_stats { 200 __be32 tx_shortretry; 201 __be32 tx_longretry; 202 __be32 tx_xretries; 203 __be32 ht_txunaggr_xretry; 204 __be32 ht_tx_xretries; 205 } __packed; 206 207 struct ath9k_htc_vif { 208 u8 index; 209 }; 210 211 #define ATH9K_HTC_MAX_STA 8 212 #define ATH9K_HTC_MAX_TID 8 213 214 enum tid_aggr_state { 215 AGGR_STOP = 0, 216 AGGR_PROGRESS, 217 AGGR_START, 218 AGGR_OPERATIONAL 219 }; 220 221 struct ath9k_htc_sta { 222 u8 index; 223 enum tid_aggr_state tid_state[ATH9K_HTC_MAX_TID]; 224 }; 225 226 #define ATH9K_HTC_RXBUF 256 227 #define HTC_RX_FRAME_HEADER_SIZE 40 228 229 struct ath9k_htc_rxbuf { 230 bool in_process; 231 struct sk_buff *skb; 232 struct ath_htc_rx_status rxstatus; 233 struct list_head list; 234 }; 235 236 struct ath9k_htc_rx { 237 int last_rssi; /* FIXME: per-STA */ 238 struct list_head rxbuf; 239 spinlock_t rxbuflock; 240 }; 241 242 struct ath9k_htc_tx_ctl { 243 u8 type; /* ATH9K_HTC_* */ 244 }; 245 246 #ifdef CONFIG_ATH9K_HTC_DEBUGFS 247 248 #define TX_STAT_INC(c) (hif_dev->htc_handle->drv_priv->debug.tx_stats.c++) 249 #define RX_STAT_INC(c) (hif_dev->htc_handle->drv_priv->debug.rx_stats.c++) 250 251 #define TX_QSTAT_INC(q) (priv->debug.tx_stats.queue_stats[q]++) 252 253 struct ath_tx_stats { 254 u32 buf_queued; 255 u32 buf_completed; 256 u32 skb_queued; 257 u32 skb_completed; 258 u32 skb_dropped; 259 u32 queue_stats[WME_NUM_AC]; 260 }; 261 262 struct ath_rx_stats { 263 u32 skb_allocated; 264 u32 skb_completed; 265 u32 skb_dropped; 266 }; 267 268 struct ath9k_debug { 269 struct dentry *debugfs_phy; 270 struct dentry *debugfs_tgt_stats; 271 struct dentry *debugfs_xmit; 272 struct dentry *debugfs_recv; 273 struct ath_tx_stats tx_stats; 274 struct ath_rx_stats rx_stats; 275 u32 txrate; 276 }; 277 278 #else 279 280 #define TX_STAT_INC(c) do { } while (0) 281 #define RX_STAT_INC(c) do { } while (0) 282 283 #define TX_QSTAT_INC(c) do { } while (0) 284 285 #endif /* CONFIG_ATH9K_HTC_DEBUGFS */ 286 287 #define ATH_LED_PIN_DEF 1 288 #define ATH_LED_PIN_9287 8 289 #define ATH_LED_PIN_9271 15 290 #define ATH_LED_PIN_7010 12 291 #define ATH_LED_ON_DURATION_IDLE 350 /* in msecs */ 292 #define ATH_LED_OFF_DURATION_IDLE 250 /* in msecs */ 293 294 enum ath_led_type { 295 ATH_LED_RADIO, 296 ATH_LED_ASSOC, 297 ATH_LED_TX, 298 ATH_LED_RX 299 }; 300 301 struct ath_led { 302 struct ath9k_htc_priv *priv; 303 struct led_classdev led_cdev; 304 enum ath_led_type led_type; 305 struct delayed_work brightness_work; 306 char name[32]; 307 bool registered; 308 int brightness; 309 }; 310 311 struct htc_beacon_config { 312 u16 beacon_interval; 313 u16 listen_interval; 314 u16 dtim_period; 315 u16 bmiss_timeout; 316 u8 dtim_count; 317 }; 318 319 struct ath_btcoex { 320 u32 bt_priority_cnt; 321 unsigned long bt_priority_time; 322 int bt_stomp_type; /* Types of BT stomping */ 323 u32 btcoex_no_stomp; 324 u32 btcoex_period; 325 u32 btscan_no_stomp; 326 }; 327 328 void ath_htc_init_btcoex_work(struct ath9k_htc_priv *priv); 329 void ath_htc_resume_btcoex_work(struct ath9k_htc_priv *priv); 330 void ath_htc_cancel_btcoex_work(struct ath9k_htc_priv *priv); 331 332 #define OP_INVALID BIT(0) 333 #define OP_SCANNING BIT(1) 334 #define OP_LED_ASSOCIATED BIT(2) 335 #define OP_LED_ON BIT(3) 336 #define OP_PREAMBLE_SHORT BIT(4) 337 #define OP_PROTECT_ENABLE BIT(5) 338 #define OP_ASSOCIATED BIT(6) 339 #define OP_ENABLE_BEACON BIT(7) 340 #define OP_LED_DEINIT BIT(8) 341 #define OP_BT_PRIORITY_DETECTED BIT(9) 342 #define OP_BT_SCAN BIT(10) 343 344 struct ath9k_htc_priv { 345 struct device *dev; 346 struct ieee80211_hw *hw; 347 struct ath_hw *ah; 348 struct htc_target *htc; 349 struct wmi *wmi; 350 351 enum htc_endpoint_id wmi_cmd_ep; 352 enum htc_endpoint_id beacon_ep; 353 enum htc_endpoint_id cab_ep; 354 enum htc_endpoint_id uapsd_ep; 355 enum htc_endpoint_id mgmt_ep; 356 enum htc_endpoint_id data_be_ep; 357 enum htc_endpoint_id data_bk_ep; 358 enum htc_endpoint_id data_vi_ep; 359 enum htc_endpoint_id data_vo_ep; 360 361 u16 op_flags; 362 u16 curtxpow; 363 u16 txpowlimit; 364 u16 nvifs; 365 u16 nstations; 366 u16 seq_no; 367 u32 bmiss_cnt; 368 369 struct ath9k_hw_cal_data caldata[ATH9K_NUM_CHANNELS]; 370 371 spinlock_t beacon_lock; 372 373 bool tx_queues_stop; 374 spinlock_t tx_lock; 375 376 struct ieee80211_vif *vif; 377 struct htc_beacon_config cur_beacon_conf; 378 unsigned int rxfilter; 379 struct tasklet_struct swba_tasklet; 380 struct tasklet_struct rx_tasklet; 381 struct ieee80211_supported_band sbands[IEEE80211_NUM_BANDS]; 382 struct ath9k_htc_rx rx; 383 struct tasklet_struct tx_tasklet; 384 struct sk_buff_head tx_queue; 385 struct delayed_work ath9k_ani_work; 386 struct work_struct ps_work; 387 struct work_struct fatal_work; 388 389 struct mutex htc_pm_lock; 390 unsigned long ps_usecount; 391 bool ps_enabled; 392 bool ps_idle; 393 394 struct ath_led radio_led; 395 struct ath_led assoc_led; 396 struct ath_led tx_led; 397 struct ath_led rx_led; 398 struct delayed_work ath9k_led_blink_work; 399 int led_on_duration; 400 int led_off_duration; 401 int led_on_cnt; 402 int led_off_cnt; 403 404 int beaconq; 405 int cabq; 406 int hwq_map[WME_NUM_AC]; 407 408 struct ath_btcoex btcoex; 409 struct delayed_work coex_period_work; 410 struct delayed_work duty_cycle_work; 411 #ifdef CONFIG_ATH9K_HTC_DEBUGFS 412 struct ath9k_debug debug; 413 #endif 414 struct mutex mutex; 415 }; 416 417 static inline void ath_read_cachesize(struct ath_common *common, int *csz) 418 { 419 common->bus_ops->read_cachesize(common, csz); 420 } 421 422 void ath9k_htc_reset(struct ath9k_htc_priv *priv); 423 424 void ath9k_htc_beaconq_config(struct ath9k_htc_priv *priv); 425 void ath9k_htc_beacon_config(struct ath9k_htc_priv *priv, 426 struct ieee80211_vif *vif); 427 void ath9k_htc_swba(struct ath9k_htc_priv *priv, u8 beacon_pending); 428 429 void ath9k_htc_rxep(void *priv, struct sk_buff *skb, 430 enum htc_endpoint_id ep_id); 431 void ath9k_htc_txep(void *priv, struct sk_buff *skb, enum htc_endpoint_id ep_id, 432 bool txok); 433 void ath9k_htc_beaconep(void *drv_priv, struct sk_buff *skb, 434 enum htc_endpoint_id ep_id, bool txok); 435 436 int ath9k_htc_update_cap_target(struct ath9k_htc_priv *priv); 437 void ath9k_htc_station_work(struct work_struct *work); 438 void ath9k_htc_aggr_work(struct work_struct *work); 439 void ath9k_ani_work(struct work_struct *work);; 440 void ath_start_ani(struct ath9k_htc_priv *priv); 441 442 int ath9k_tx_init(struct ath9k_htc_priv *priv); 443 void ath9k_tx_tasklet(unsigned long data); 444 int ath9k_htc_tx_start(struct ath9k_htc_priv *priv, struct sk_buff *skb); 445 void ath9k_tx_cleanup(struct ath9k_htc_priv *priv); 446 bool ath9k_htc_txq_setup(struct ath9k_htc_priv *priv, int subtype); 447 int ath9k_htc_cabq_setup(struct ath9k_htc_priv *priv); 448 int get_hw_qnum(u16 queue, int *hwq_map); 449 int ath_htc_txq_update(struct ath9k_htc_priv *priv, int qnum, 450 struct ath9k_tx_queue_info *qinfo); 451 452 int ath9k_rx_init(struct ath9k_htc_priv *priv); 453 void ath9k_rx_cleanup(struct ath9k_htc_priv *priv); 454 void ath9k_host_rx_init(struct ath9k_htc_priv *priv); 455 void ath9k_rx_tasklet(unsigned long data); 456 u32 ath9k_htc_calcrxfilter(struct ath9k_htc_priv *priv); 457 458 void ath9k_htc_ps_wakeup(struct ath9k_htc_priv *priv); 459 void ath9k_htc_ps_restore(struct ath9k_htc_priv *priv); 460 void ath9k_ps_work(struct work_struct *work); 461 bool ath9k_htc_setpower(struct ath9k_htc_priv *priv, 462 enum ath9k_power_mode mode); 463 void ath_update_txpow(struct ath9k_htc_priv *priv); 464 465 void ath9k_start_rfkill_poll(struct ath9k_htc_priv *priv); 466 void ath9k_htc_rfkill_poll_state(struct ieee80211_hw *hw); 467 void ath9k_htc_radio_enable(struct ieee80211_hw *hw); 468 void ath9k_htc_radio_disable(struct ieee80211_hw *hw); 469 void ath9k_led_stop_brightness(struct ath9k_htc_priv *priv); 470 void ath9k_init_leds(struct ath9k_htc_priv *priv); 471 void ath9k_deinit_leds(struct ath9k_htc_priv *priv); 472 473 int ath9k_htc_probe_device(struct htc_target *htc_handle, struct device *dev, 474 u16 devid, char *product, u32 drv_info); 475 void ath9k_htc_disconnect_device(struct htc_target *htc_handle, bool hotunplug); 476 #ifdef CONFIG_PM 477 void ath9k_htc_suspend(struct htc_target *htc_handle); 478 int ath9k_htc_resume(struct htc_target *htc_handle); 479 #endif 480 #ifdef CONFIG_ATH9K_HTC_DEBUGFS 481 int ath9k_htc_debug_create_root(void); 482 void ath9k_htc_debug_remove_root(void); 483 int ath9k_htc_init_debug(struct ath_hw *ah); 484 void ath9k_htc_exit_debug(struct ath_hw *ah); 485 #else 486 static inline int ath9k_htc_debug_create_root(void) { return 0; }; 487 static inline void ath9k_htc_debug_remove_root(void) {}; 488 static inline int ath9k_htc_init_debug(struct ath_hw *ah) { return 0; }; 489 static inline void ath9k_htc_exit_debug(struct ath_hw *ah) {}; 490 #endif /* CONFIG_ATH9K_HTC_DEBUGFS */ 491 492 #endif /* HTC_H */ 493