2 * Copyright (c) 2010-2011 Atheros Communications Inc.
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.
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.
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/etherdevice.h>
26 #include <linux/leds.h>
27 #include <linux/slab.h>
28 #include <net/mac80211.h>
35 #define ATH_STA_SHORT_CALINTERVAL 1000 /* 1 second */
36 #define ATH_AP_SHORT_CALINTERVAL 100 /* 100 ms */
37 #define ATH_ANI_POLLINTERVAL 100 /* 100 ms */
38 #define ATH_LONG_CALINTERVAL 30000 /* 30 seconds */
39 #define ATH_RESTART_CALINTERVAL 1200000 /* 20 minutes */
41 #define ATH_DEFAULT_BMISS_LIMIT 10
42 #define IEEE80211_MS_TO_TU(x) (((x) * 1000) / 1024)
43 #define TSF_TO_TU(_h, _l) \
44 ((((u32)(_h)) << 22) | (((u32)(_l)) >> 10))
46 extern struct ieee80211_ops ath9k_htc_ops;
47 extern int htc_modparam_nohwcrypt;
63 #define ATH9K_HTC_AMPDU 1
64 #define ATH9K_HTC_NORMAL 2
65 #define ATH9K_HTC_BEACON 3
66 #define ATH9K_HTC_MGMT 4
68 #define ATH9K_HTC_TX_CTSONLY 0x1
69 #define ATH9K_HTC_TX_RTSCTS 0x2
76 __be32 flags; /* ATH9K_HTC_TX_* */
94 struct tx_beacon_header {
100 #define MAX_TX_AMPDU_SUBFRAMES_9271 17
101 #define MAX_TX_AMPDU_SUBFRAMES_7010 22
103 struct ath9k_htc_cap_target {
111 struct ath9k_htc_target_vif {
120 struct ath9k_htc_target_sta {
121 u8 macaddr[ETH_ALEN];
132 struct ath9k_htc_target_aggr {
139 #define ATH_HTC_RATE_MAX 30
141 #define WLAN_RC_DS_FLAG 0x01
142 #define WLAN_RC_40_FLAG 0x02
143 #define WLAN_RC_SGI_FLAG 0x04
144 #define WLAN_RC_HT_FLAG 0x08
146 struct ath9k_htc_rateset {
148 u8 rs_rates[ATH_HTC_RATE_MAX];
151 struct ath9k_htc_rate {
152 struct ath9k_htc_rateset legacy_rates;
153 struct ath9k_htc_rateset ht_rates;
156 struct ath9k_htc_target_rate {
160 struct ath9k_htc_rate rates;
163 struct ath9k_htc_target_rate_mask {
170 struct ath9k_htc_target_int_stats {
179 struct ath9k_htc_target_tx_stats {
191 struct ath9k_htc_target_rx_stats {
197 #define ATH9K_HTC_MAX_VIF 2
198 #define ATH9K_HTC_MAX_BCN_VIF 2
200 #define INC_VIF(_priv, _type) do { \
202 case NL80211_IFTYPE_STATION: \
203 _priv->num_sta_vif++; \
205 case NL80211_IFTYPE_ADHOC: \
206 _priv->num_ibss_vif++; \
208 case NL80211_IFTYPE_AP: \
209 _priv->num_ap_vif++; \
216 #define DEC_VIF(_priv, _type) do { \
218 case NL80211_IFTYPE_STATION: \
219 _priv->num_sta_vif--; \
221 case NL80211_IFTYPE_ADHOC: \
222 _priv->num_ibss_vif--; \
224 case NL80211_IFTYPE_AP: \
225 _priv->num_ap_vif--; \
232 struct ath9k_htc_vif {
235 bool beacon_configured;
240 struct ath9k_vif_iter_data {
241 const u8 *hw_macaddr;
245 #define ATH9K_HTC_MAX_STA 8
246 #define ATH9K_HTC_MAX_TID 8
248 enum tid_aggr_state {
255 struct ath9k_htc_sta {
257 enum tid_aggr_state tid_state[ATH9K_HTC_MAX_TID];
260 #define ATH9K_HTC_RXBUF 256
261 #define HTC_RX_FRAME_HEADER_SIZE 40
263 struct ath9k_htc_rxbuf {
266 struct ath_htc_rx_status rxstatus;
267 struct list_head list;
270 struct ath9k_htc_rx {
271 int last_rssi; /* FIXME: per-STA */
272 struct list_head rxbuf;
273 spinlock_t rxbuflock;
276 #define ATH9K_HTC_TX_CLEANUP_INTERVAL 50 /* ms */
277 #define ATH9K_HTC_TX_TIMEOUT_INTERVAL 3000 /* ms */
278 #define ATH9K_HTC_TX_RESERVE 10
279 #define ATH9K_HTC_TX_TIMEOUT_COUNT 40
280 #define ATH9K_HTC_TX_THRESHOLD (MAX_TX_BUF_NUM - ATH9K_HTC_TX_RESERVE)
282 #define ATH9K_HTC_OP_TX_QUEUES_STOP BIT(0)
283 #define ATH9K_HTC_OP_TX_DRAIN BIT(1)
285 struct ath9k_htc_tx {
288 struct sk_buff_head mgmt_ep_queue;
289 struct sk_buff_head cab_ep_queue;
290 struct sk_buff_head data_be_queue;
291 struct sk_buff_head data_bk_queue;
292 struct sk_buff_head data_vi_queue;
293 struct sk_buff_head data_vo_queue;
294 struct sk_buff_head tx_failed;
295 DECLARE_BITMAP(tx_slot, MAX_TX_BUF_NUM);
296 struct timer_list cleanup_timer;
300 struct ath9k_htc_tx_ctl {
301 u8 type; /* ATH9K_HTC_* */
305 unsigned long timestamp;
308 static inline struct ath9k_htc_tx_ctl *HTC_SKB_CB(struct sk_buff *skb)
310 struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
312 BUILD_BUG_ON(sizeof(struct ath9k_htc_tx_ctl) >
313 IEEE80211_TX_INFO_DRIVER_DATA_SIZE);
314 return (struct ath9k_htc_tx_ctl *) &tx_info->driver_data;
317 #ifdef CONFIG_ATH9K_HTC_DEBUGFS
319 #define TX_STAT_INC(c) (hif_dev->htc_handle->drv_priv->debug.tx_stats.c++)
320 #define RX_STAT_INC(c) (hif_dev->htc_handle->drv_priv->debug.rx_stats.c++)
321 #define CAB_STAT_INC priv->debug.tx_stats.cab_queued++
323 #define TX_QSTAT_INC(q) (priv->debug.tx_stats.queue_stats[q]++)
325 void ath9k_htc_err_stat_rx(struct ath9k_htc_priv *priv,
326 struct ath_htc_rx_status *rxs);
328 struct ath_tx_stats {
335 u32 queue_stats[IEEE80211_NUM_ACS];
338 struct ath_rx_stats {
347 u32 err_decrypt_busy;
349 u32 err_phy_stats[ATH9K_PHYERR_MAX];
353 struct dentry *debugfs_phy;
354 struct ath_tx_stats tx_stats;
355 struct ath_rx_stats rx_stats;
360 #define TX_STAT_INC(c) do { } while (0)
361 #define RX_STAT_INC(c) do { } while (0)
362 #define CAB_STAT_INC do { } while (0)
364 #define TX_QSTAT_INC(c) do { } while (0)
366 static inline void ath9k_htc_err_stat_rx(struct ath9k_htc_priv *priv,
367 struct ath_htc_rx_status *rxs)
371 #endif /* CONFIG_ATH9K_HTC_DEBUGFS */
373 #define ATH_LED_PIN_DEF 1
374 #define ATH_LED_PIN_9287 10
375 #define ATH_LED_PIN_9271 15
376 #define ATH_LED_PIN_7010 12
378 #define BSTUCK_THRESHOLD 10
381 * Adjust these when the max. no of beaconing interfaces is
384 #define DEFAULT_SWBA_RESPONSE 40 /* in TUs */
385 #define MIN_SWBA_RESPONSE 10 /* in TUs */
387 struct htc_beacon_config {
388 struct ieee80211_vif *bslot[ATH9K_HTC_MAX_BCN_VIF];
397 unsigned long bt_priority_time;
398 int bt_stomp_type; /* Types of BT stomping */
404 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
405 void ath9k_htc_init_btcoex(struct ath9k_htc_priv *priv, char *product);
406 void ath9k_htc_start_btcoex(struct ath9k_htc_priv *priv);
407 void ath9k_htc_stop_btcoex(struct ath9k_htc_priv *priv);
409 static inline void ath9k_htc_init_btcoex(struct ath9k_htc_priv *priv, char *product)
412 static inline void ath9k_htc_start_btcoex(struct ath9k_htc_priv *priv)
415 static inline void ath9k_htc_stop_btcoex(struct ath9k_htc_priv *priv)
418 #endif /* CONFIG_ATH9K_BTCOEX_SUPPORT */
420 #define OP_INVALID BIT(0)
421 #define OP_SCANNING BIT(1)
422 #define OP_ENABLE_BEACON BIT(2)
423 #define OP_BT_PRIORITY_DETECTED BIT(3)
424 #define OP_BT_SCAN BIT(4)
425 #define OP_ANI_RUNNING BIT(5)
426 #define OP_TSF_RESET BIT(6)
428 struct ath9k_htc_priv {
430 struct ieee80211_hw *hw;
432 struct htc_target *htc;
435 u16 fw_version_major;
436 u16 fw_version_minor;
438 enum htc_endpoint_id wmi_cmd_ep;
439 enum htc_endpoint_id beacon_ep;
440 enum htc_endpoint_id cab_ep;
441 enum htc_endpoint_id uapsd_ep;
442 enum htc_endpoint_id mgmt_ep;
443 enum htc_endpoint_id data_be_ep;
444 enum htc_endpoint_id data_bk_ep;
445 enum htc_endpoint_id data_vi_ep;
446 enum htc_endpoint_id data_vo_ep;
451 u8 vif_sta_pos[ATH9K_HTC_MAX_VIF];
454 u8 num_sta_assoc_vif;
462 bool reconfig_beacon;
463 unsigned int rxfilter;
464 unsigned long op_flags;
466 struct ath9k_hw_cal_data caldata;
467 struct ieee80211_supported_band sbands[IEEE80211_NUM_BANDS];
469 spinlock_t beacon_lock;
470 struct htc_beacon_config cur_beacon_conf;
472 struct ath9k_htc_rx rx;
473 struct ath9k_htc_tx tx;
475 struct tasklet_struct swba_tasklet;
476 struct tasklet_struct rx_tasklet;
477 struct delayed_work ani_work;
478 struct tasklet_struct tx_failed_tasklet;
479 struct work_struct ps_work;
480 struct work_struct fatal_work;
482 struct mutex htc_pm_lock;
483 unsigned long ps_usecount;
487 #ifdef CONFIG_MAC80211_LEDS
488 enum led_brightness brightness;
491 struct led_classdev led_cdev;
492 struct work_struct led_work;
497 int hwq_map[IEEE80211_NUM_ACS];
499 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
500 struct ath_btcoex btcoex;
503 struct delayed_work coex_period_work;
504 struct delayed_work duty_cycle_work;
505 #ifdef CONFIG_ATH9K_HTC_DEBUGFS
506 struct ath9k_debug debug;
511 static inline void ath_read_cachesize(struct ath_common *common, int *csz)
513 common->bus_ops->read_cachesize(common, csz);
516 void ath9k_htc_reset(struct ath9k_htc_priv *priv);
518 void ath9k_htc_assign_bslot(struct ath9k_htc_priv *priv,
519 struct ieee80211_vif *vif);
520 void ath9k_htc_remove_bslot(struct ath9k_htc_priv *priv,
521 struct ieee80211_vif *vif);
522 void ath9k_htc_set_tsfadjust(struct ath9k_htc_priv *priv,
523 struct ieee80211_vif *vif);
524 void ath9k_htc_beaconq_config(struct ath9k_htc_priv *priv);
525 void ath9k_htc_beacon_config(struct ath9k_htc_priv *priv,
526 struct ieee80211_vif *vif);
527 void ath9k_htc_beacon_reconfig(struct ath9k_htc_priv *priv);
528 void ath9k_htc_swba(struct ath9k_htc_priv *priv,
529 struct wmi_event_swba *swba);
531 void ath9k_htc_rxep(void *priv, struct sk_buff *skb,
532 enum htc_endpoint_id ep_id);
533 void ath9k_htc_txep(void *priv, struct sk_buff *skb, enum htc_endpoint_id ep_id,
535 void ath9k_htc_beaconep(void *drv_priv, struct sk_buff *skb,
536 enum htc_endpoint_id ep_id, bool txok);
538 int ath9k_htc_update_cap_target(struct ath9k_htc_priv *priv,
540 void ath9k_htc_ani_work(struct work_struct *work);
541 void ath9k_htc_start_ani(struct ath9k_htc_priv *priv);
542 void ath9k_htc_stop_ani(struct ath9k_htc_priv *priv);
544 int ath9k_tx_init(struct ath9k_htc_priv *priv);
545 int ath9k_htc_tx_start(struct ath9k_htc_priv *priv,
546 struct ieee80211_sta *sta,
547 struct sk_buff *skb, u8 slot, bool is_cab);
548 void ath9k_tx_cleanup(struct ath9k_htc_priv *priv);
549 bool ath9k_htc_txq_setup(struct ath9k_htc_priv *priv, int subtype);
550 int ath9k_htc_cabq_setup(struct ath9k_htc_priv *priv);
551 int get_hw_qnum(u16 queue, int *hwq_map);
552 int ath_htc_txq_update(struct ath9k_htc_priv *priv, int qnum,
553 struct ath9k_tx_queue_info *qinfo);
554 void ath9k_htc_check_stop_queues(struct ath9k_htc_priv *priv);
555 void ath9k_htc_check_wake_queues(struct ath9k_htc_priv *priv);
556 int ath9k_htc_tx_get_slot(struct ath9k_htc_priv *priv);
557 void ath9k_htc_tx_clear_slot(struct ath9k_htc_priv *priv, int slot);
558 void ath9k_htc_tx_drain(struct ath9k_htc_priv *priv);
559 void ath9k_htc_txstatus(struct ath9k_htc_priv *priv, void *wmi_event);
560 void ath9k_tx_failed_tasklet(unsigned long data);
561 void ath9k_htc_tx_cleanup_timer(unsigned long data);
563 int ath9k_rx_init(struct ath9k_htc_priv *priv);
564 void ath9k_rx_cleanup(struct ath9k_htc_priv *priv);
565 void ath9k_host_rx_init(struct ath9k_htc_priv *priv);
566 void ath9k_rx_tasklet(unsigned long data);
567 u32 ath9k_htc_calcrxfilter(struct ath9k_htc_priv *priv);
569 void ath9k_htc_ps_wakeup(struct ath9k_htc_priv *priv);
570 void ath9k_htc_ps_restore(struct ath9k_htc_priv *priv);
571 void ath9k_ps_work(struct work_struct *work);
572 bool ath9k_htc_setpower(struct ath9k_htc_priv *priv,
573 enum ath9k_power_mode mode);
575 void ath9k_start_rfkill_poll(struct ath9k_htc_priv *priv);
576 void ath9k_htc_rfkill_poll_state(struct ieee80211_hw *hw);
578 #ifdef CONFIG_MAC80211_LEDS
579 void ath9k_init_leds(struct ath9k_htc_priv *priv);
580 void ath9k_deinit_leds(struct ath9k_htc_priv *priv);
581 void ath9k_led_work(struct work_struct *work);
583 static inline void ath9k_init_leds(struct ath9k_htc_priv *priv)
587 static inline void ath9k_deinit_leds(struct ath9k_htc_priv *priv)
591 static inline void ath9k_led_work(struct work_struct *work)
596 int ath9k_htc_probe_device(struct htc_target *htc_handle, struct device *dev,
597 u16 devid, char *product, u32 drv_info);
598 void ath9k_htc_disconnect_device(struct htc_target *htc_handle, bool hotunplug);
600 void ath9k_htc_suspend(struct htc_target *htc_handle);
601 int ath9k_htc_resume(struct htc_target *htc_handle);
603 #ifdef CONFIG_ATH9K_HTC_DEBUGFS
604 int ath9k_htc_init_debug(struct ath_hw *ah);
606 static inline int ath9k_htc_init_debug(struct ath_hw *ah) { return 0; };
607 #endif /* CONFIG_ATH9K_HTC_DEBUGFS */