2 * Copyright (c) 2010 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/leds.h>
26 #include <linux/slab.h>
27 #include <net/mac80211.h>
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 */
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))
45 extern struct ieee80211_ops ath9k_htc_ops;
46 extern int htc_modparam_nohwcrypt;
69 #define ATH9K_HTC_HDRSPACE sizeof(struct htc_frame_hdr)
71 #define ATH9K_HTC_AMPDU 1
72 #define ATH9K_HTC_NORMAL 2
73 #define ATH9K_HTC_BEACON 3
74 #define ATH9K_HTC_MGMT 4
76 #define ATH9K_HTC_TX_CTSONLY 0x1
77 #define ATH9K_HTC_TX_RTSCTS 0x2
78 #define ATH9K_HTC_TX_USE_MIN_RATE 0x100
85 __be32 flags; /* ATH9K_HTC_TX_* */
103 struct tx_beacon_header {
109 #define MAX_TX_AMPDU_SUBFRAMES_9271 17
110 #define MAX_TX_AMPDU_SUBFRAMES_7010 22
112 struct ath9k_htc_cap_target {
120 struct ath9k_htc_target_vif {
129 #define ATH_HTC_STA_AUTH 0x0001
130 #define ATH_HTC_STA_QOS 0x0002
131 #define ATH_HTC_STA_ERP 0x0004
132 #define ATH_HTC_STA_HT 0x0008
134 struct ath9k_htc_target_sta {
135 u8 macaddr[ETH_ALEN];
140 __be16 flags; /* ATH_HTC_STA_* */
146 struct ath9k_htc_target_aggr {
153 #define ATH_HTC_RATE_MAX 30
155 #define WLAN_RC_DS_FLAG 0x01
156 #define WLAN_RC_40_FLAG 0x02
157 #define WLAN_RC_SGI_FLAG 0x04
158 #define WLAN_RC_HT_FLAG 0x08
160 struct ath9k_htc_rateset {
162 u8 rs_rates[ATH_HTC_RATE_MAX];
165 struct ath9k_htc_rate {
166 struct ath9k_htc_rateset legacy_rates;
167 struct ath9k_htc_rateset ht_rates;
170 struct ath9k_htc_target_rate {
174 struct ath9k_htc_rate rates;
177 struct ath9k_htc_target_int_stats {
186 struct ath9k_htc_target_tx_stats {
198 struct ath9k_htc_target_rx_stats {
204 #define ATH9K_HTC_MAX_VIF 2
205 #define ATH9K_HTC_MAX_BCN_VIF 2
207 #define INC_VIF(_priv, _type) do { \
209 case NL80211_IFTYPE_STATION: \
210 _priv->num_sta_vif++; \
212 case NL80211_IFTYPE_ADHOC: \
213 _priv->num_ibss_vif++; \
215 case NL80211_IFTYPE_AP: \
216 _priv->num_ap_vif++; \
223 #define DEC_VIF(_priv, _type) do { \
225 case NL80211_IFTYPE_STATION: \
226 _priv->num_sta_vif--; \
228 case NL80211_IFTYPE_ADHOC: \
229 _priv->num_ibss_vif--; \
231 case NL80211_IFTYPE_AP: \
232 _priv->num_ap_vif--; \
239 struct ath9k_htc_vif {
242 bool beacon_configured;
247 struct ath9k_vif_iter_data {
248 const u8 *hw_macaddr;
252 #define ATH9K_HTC_MAX_STA 8
253 #define ATH9K_HTC_MAX_TID 8
255 enum tid_aggr_state {
262 struct ath9k_htc_sta {
264 enum tid_aggr_state tid_state[ATH9K_HTC_MAX_TID];
267 #define ATH9K_HTC_RXBUF 256
268 #define HTC_RX_FRAME_HEADER_SIZE 40
270 struct ath9k_htc_rxbuf {
273 struct ath_htc_rx_status rxstatus;
274 struct list_head list;
277 struct ath9k_htc_rx {
278 int last_rssi; /* FIXME: per-STA */
279 struct list_head rxbuf;
280 spinlock_t rxbuflock;
283 #define ATH9K_HTC_TX_CLEANUP_INTERVAL 50 /* ms */
284 #define ATH9K_HTC_TX_TIMEOUT_INTERVAL 2500 /* ms */
285 #define ATH9K_HTC_TX_RESERVE 10
286 #define ATH9K_HTC_TX_TIMEOUT_COUNT 20
287 #define ATH9K_HTC_TX_THRESHOLD (MAX_TX_BUF_NUM - ATH9K_HTC_TX_RESERVE)
289 #define ATH9K_HTC_OP_TX_QUEUES_STOP BIT(0)
290 #define ATH9K_HTC_OP_TX_DRAIN BIT(1)
292 struct ath9k_htc_tx {
295 struct sk_buff_head mgmt_ep_queue;
296 struct sk_buff_head cab_ep_queue;
297 struct sk_buff_head data_be_queue;
298 struct sk_buff_head data_bk_queue;
299 struct sk_buff_head data_vi_queue;
300 struct sk_buff_head data_vo_queue;
301 struct sk_buff_head tx_failed;
302 DECLARE_BITMAP(tx_slot, MAX_TX_BUF_NUM);
303 struct timer_list cleanup_timer;
307 struct ath9k_htc_tx_ctl {
308 u8 type; /* ATH9K_HTC_* */
312 unsigned long timestamp;
315 static inline struct ath9k_htc_tx_ctl *HTC_SKB_CB(struct sk_buff *skb)
317 struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
319 BUILD_BUG_ON(sizeof(struct ath9k_htc_tx_ctl) >
320 IEEE80211_TX_INFO_DRIVER_DATA_SIZE);
321 return (struct ath9k_htc_tx_ctl *) &tx_info->driver_data;
324 #ifdef CONFIG_ATH9K_HTC_DEBUGFS
326 #define TX_STAT_INC(c) (hif_dev->htc_handle->drv_priv->debug.tx_stats.c++)
327 #define RX_STAT_INC(c) (hif_dev->htc_handle->drv_priv->debug.rx_stats.c++)
328 #define CAB_STAT_INC priv->debug.tx_stats.cab_queued++
330 #define TX_QSTAT_INC(q) (priv->debug.tx_stats.queue_stats[q]++)
332 void ath9k_htc_err_stat_rx(struct ath9k_htc_priv *priv,
333 struct ath_htc_rx_status *rxs);
335 struct ath_tx_stats {
342 u32 queue_stats[WME_NUM_AC];
345 struct ath_rx_stats {
354 u32 err_decrypt_busy;
356 u32 err_phy_stats[ATH9K_PHYERR_MAX];
360 struct dentry *debugfs_phy;
361 struct ath_tx_stats tx_stats;
362 struct ath_rx_stats rx_stats;
367 #define TX_STAT_INC(c) do { } while (0)
368 #define RX_STAT_INC(c) do { } while (0)
369 #define CAB_STAT_INC do { } while (0)
371 #define TX_QSTAT_INC(c) do { } while (0)
373 static inline void ath9k_htc_err_stat_rx(struct ath9k_htc_priv *priv,
374 struct ath_htc_rx_status *rxs)
378 #endif /* CONFIG_ATH9K_HTC_DEBUGFS */
380 #define ATH_LED_PIN_DEF 1
381 #define ATH_LED_PIN_9287 10
382 #define ATH_LED_PIN_9271 15
383 #define ATH_LED_PIN_7010 12
384 #define ATH_LED_ON_DURATION_IDLE 350 /* in msecs */
385 #define ATH_LED_OFF_DURATION_IDLE 250 /* in msecs */
395 struct ath9k_htc_priv *priv;
396 struct led_classdev led_cdev;
397 enum ath_led_type led_type;
398 struct delayed_work brightness_work;
404 #define BSTUCK_THRESHOLD 10
407 * Adjust these when the max. no of beaconing interfaces is
410 #define DEFAULT_SWBA_RESPONSE 40 /* in TUs */
411 #define MIN_SWBA_RESPONSE 10 /* in TUs */
413 struct htc_beacon_config {
414 struct ieee80211_vif *bslot[ATH9K_HTC_MAX_BCN_VIF];
423 unsigned long bt_priority_time;
424 int bt_stomp_type; /* Types of BT stomping */
430 void ath_htc_init_btcoex_work(struct ath9k_htc_priv *priv);
431 void ath_htc_resume_btcoex_work(struct ath9k_htc_priv *priv);
432 void ath_htc_cancel_btcoex_work(struct ath9k_htc_priv *priv);
434 #define OP_INVALID BIT(0)
435 #define OP_SCANNING BIT(1)
436 #define OP_LED_ASSOCIATED BIT(2)
437 #define OP_LED_ON BIT(3)
438 #define OP_ENABLE_BEACON BIT(4)
439 #define OP_LED_DEINIT BIT(5)
440 #define OP_BT_PRIORITY_DETECTED BIT(6)
441 #define OP_BT_SCAN BIT(7)
442 #define OP_ANI_RUNNING BIT(8)
443 #define OP_TSF_RESET BIT(9)
445 struct ath9k_htc_priv {
447 struct ieee80211_hw *hw;
449 struct htc_target *htc;
452 u16 fw_version_major;
453 u16 fw_version_minor;
455 enum htc_endpoint_id wmi_cmd_ep;
456 enum htc_endpoint_id beacon_ep;
457 enum htc_endpoint_id cab_ep;
458 enum htc_endpoint_id uapsd_ep;
459 enum htc_endpoint_id mgmt_ep;
460 enum htc_endpoint_id data_be_ep;
461 enum htc_endpoint_id data_bk_ep;
462 enum htc_endpoint_id data_vi_ep;
463 enum htc_endpoint_id data_vo_ep;
468 u8 vif_sta_pos[ATH9K_HTC_MAX_VIF];
479 bool reconfig_beacon;
480 unsigned int rxfilter;
482 struct ath9k_hw_cal_data caldata;
483 struct ieee80211_supported_band sbands[IEEE80211_NUM_BANDS];
485 spinlock_t beacon_lock;
486 struct htc_beacon_config cur_beacon_conf;
488 struct ath9k_htc_rx rx;
489 struct ath9k_htc_tx tx;
491 struct tasklet_struct swba_tasklet;
492 struct tasklet_struct rx_tasklet;
493 struct delayed_work ani_work;
494 struct tasklet_struct tx_failed_tasklet;
495 struct work_struct ps_work;
496 struct work_struct fatal_work;
498 struct mutex htc_pm_lock;
499 unsigned long ps_usecount;
503 struct ath_led radio_led;
504 struct ath_led assoc_led;
505 struct ath_led tx_led;
506 struct ath_led rx_led;
507 struct delayed_work ath9k_led_blink_work;
509 int led_off_duration;
515 int hwq_map[WME_NUM_AC];
517 struct ath_btcoex btcoex;
518 struct delayed_work coex_period_work;
519 struct delayed_work duty_cycle_work;
520 #ifdef CONFIG_ATH9K_HTC_DEBUGFS
521 struct ath9k_debug debug;
526 static inline void ath_read_cachesize(struct ath_common *common, int *csz)
528 common->bus_ops->read_cachesize(common, csz);
531 void ath9k_htc_reset(struct ath9k_htc_priv *priv);
533 void ath9k_htc_assign_bslot(struct ath9k_htc_priv *priv,
534 struct ieee80211_vif *vif);
535 void ath9k_htc_remove_bslot(struct ath9k_htc_priv *priv,
536 struct ieee80211_vif *vif);
537 void ath9k_htc_set_tsfadjust(struct ath9k_htc_priv *priv,
538 struct ieee80211_vif *vif);
539 void ath9k_htc_beaconq_config(struct ath9k_htc_priv *priv);
540 void ath9k_htc_beacon_config(struct ath9k_htc_priv *priv,
541 struct ieee80211_vif *vif);
542 void ath9k_htc_beacon_reconfig(struct ath9k_htc_priv *priv);
543 void ath9k_htc_swba(struct ath9k_htc_priv *priv,
544 struct wmi_event_swba *swba);
546 void ath9k_htc_rxep(void *priv, struct sk_buff *skb,
547 enum htc_endpoint_id ep_id);
548 void ath9k_htc_txep(void *priv, struct sk_buff *skb, enum htc_endpoint_id ep_id,
550 void ath9k_htc_beaconep(void *drv_priv, struct sk_buff *skb,
551 enum htc_endpoint_id ep_id, bool txok);
553 int ath9k_htc_update_cap_target(struct ath9k_htc_priv *priv,
555 void ath9k_htc_station_work(struct work_struct *work);
556 void ath9k_htc_aggr_work(struct work_struct *work);
557 void ath9k_htc_ani_work(struct work_struct *work);
558 void ath9k_htc_start_ani(struct ath9k_htc_priv *priv);
559 void ath9k_htc_stop_ani(struct ath9k_htc_priv *priv);
561 int ath9k_tx_init(struct ath9k_htc_priv *priv);
562 int ath9k_htc_tx_start(struct ath9k_htc_priv *priv,
563 struct sk_buff *skb, u8 slot, bool is_cab);
564 void ath9k_tx_cleanup(struct ath9k_htc_priv *priv);
565 bool ath9k_htc_txq_setup(struct ath9k_htc_priv *priv, int subtype);
566 int ath9k_htc_cabq_setup(struct ath9k_htc_priv *priv);
567 int get_hw_qnum(u16 queue, int *hwq_map);
568 int ath_htc_txq_update(struct ath9k_htc_priv *priv, int qnum,
569 struct ath9k_tx_queue_info *qinfo);
570 void ath9k_htc_check_stop_queues(struct ath9k_htc_priv *priv);
571 void ath9k_htc_check_wake_queues(struct ath9k_htc_priv *priv);
572 int ath9k_htc_tx_get_slot(struct ath9k_htc_priv *priv);
573 void ath9k_htc_tx_clear_slot(struct ath9k_htc_priv *priv, int slot);
574 void ath9k_htc_tx_drain(struct ath9k_htc_priv *priv);
575 void ath9k_htc_txstatus(struct ath9k_htc_priv *priv, void *wmi_event);
576 void ath9k_htc_tx_failed(struct ath9k_htc_priv *priv);
577 void ath9k_tx_failed_tasklet(unsigned long data);
578 void ath9k_htc_tx_cleanup_timer(unsigned long data);
580 int ath9k_rx_init(struct ath9k_htc_priv *priv);
581 void ath9k_rx_cleanup(struct ath9k_htc_priv *priv);
582 void ath9k_host_rx_init(struct ath9k_htc_priv *priv);
583 void ath9k_rx_tasklet(unsigned long data);
584 u32 ath9k_htc_calcrxfilter(struct ath9k_htc_priv *priv);
586 void ath9k_htc_ps_wakeup(struct ath9k_htc_priv *priv);
587 void ath9k_htc_ps_restore(struct ath9k_htc_priv *priv);
588 void ath9k_ps_work(struct work_struct *work);
589 bool ath9k_htc_setpower(struct ath9k_htc_priv *priv,
590 enum ath9k_power_mode mode);
592 void ath9k_start_rfkill_poll(struct ath9k_htc_priv *priv);
593 void ath9k_htc_rfkill_poll_state(struct ieee80211_hw *hw);
594 void ath9k_htc_radio_enable(struct ieee80211_hw *hw);
595 void ath9k_htc_radio_disable(struct ieee80211_hw *hw);
596 void ath9k_led_stop_brightness(struct ath9k_htc_priv *priv);
597 void ath9k_init_leds(struct ath9k_htc_priv *priv);
598 void ath9k_deinit_leds(struct ath9k_htc_priv *priv);
600 int ath9k_htc_probe_device(struct htc_target *htc_handle, struct device *dev,
601 u16 devid, char *product, u32 drv_info);
602 void ath9k_htc_disconnect_device(struct htc_target *htc_handle, bool hotunplug);
604 void ath9k_htc_suspend(struct htc_target *htc_handle);
605 int ath9k_htc_resume(struct htc_target *htc_handle);
607 #ifdef CONFIG_ATH9K_HTC_DEBUGFS
608 int ath9k_htc_init_debug(struct ath_hw *ah);
610 static inline int ath9k_htc_init_debug(struct ath_hw *ah) { return 0; };
611 #endif /* CONFIG_ATH9K_HTC_DEBUGFS */