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/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;
62 #define ATH9K_HTC_AMPDU 1
63 #define ATH9K_HTC_NORMAL 2
64 #define ATH9K_HTC_BEACON 3
65 #define ATH9K_HTC_MGMT 4
67 #define ATH9K_HTC_TX_CTSONLY 0x1
68 #define ATH9K_HTC_TX_RTSCTS 0x2
75 __be32 flags; /* ATH9K_HTC_TX_* */
93 struct tx_beacon_header {
99 #define MAX_TX_AMPDU_SUBFRAMES_9271 17
100 #define MAX_TX_AMPDU_SUBFRAMES_7010 22
102 struct ath9k_htc_cap_target {
110 struct ath9k_htc_target_vif {
119 struct ath9k_htc_target_sta {
120 u8 macaddr[ETH_ALEN];
131 struct ath9k_htc_target_aggr {
138 #define ATH_HTC_RATE_MAX 30
140 #define WLAN_RC_DS_FLAG 0x01
141 #define WLAN_RC_40_FLAG 0x02
142 #define WLAN_RC_SGI_FLAG 0x04
143 #define WLAN_RC_HT_FLAG 0x08
145 struct ath9k_htc_rateset {
147 u8 rs_rates[ATH_HTC_RATE_MAX];
150 struct ath9k_htc_rate {
151 struct ath9k_htc_rateset legacy_rates;
152 struct ath9k_htc_rateset ht_rates;
155 struct ath9k_htc_target_rate {
159 struct ath9k_htc_rate rates;
162 struct ath9k_htc_target_rate_mask {
169 struct ath9k_htc_target_int_stats {
178 struct ath9k_htc_target_tx_stats {
190 struct ath9k_htc_target_rx_stats {
196 #define ATH9K_HTC_MAX_VIF 2
197 #define ATH9K_HTC_MAX_BCN_VIF 2
199 #define INC_VIF(_priv, _type) do { \
201 case NL80211_IFTYPE_STATION: \
202 _priv->num_sta_vif++; \
204 case NL80211_IFTYPE_ADHOC: \
205 _priv->num_ibss_vif++; \
207 case NL80211_IFTYPE_AP: \
208 _priv->num_ap_vif++; \
215 #define DEC_VIF(_priv, _type) do { \
217 case NL80211_IFTYPE_STATION: \
218 _priv->num_sta_vif--; \
220 case NL80211_IFTYPE_ADHOC: \
221 _priv->num_ibss_vif--; \
223 case NL80211_IFTYPE_AP: \
224 _priv->num_ap_vif--; \
231 struct ath9k_htc_vif {
234 bool beacon_configured;
239 struct ath9k_vif_iter_data {
240 const u8 *hw_macaddr;
244 #define ATH9K_HTC_MAX_STA 8
245 #define ATH9K_HTC_MAX_TID 8
247 enum tid_aggr_state {
254 struct ath9k_htc_sta {
256 enum tid_aggr_state tid_state[ATH9K_HTC_MAX_TID];
259 #define ATH9K_HTC_RXBUF 256
260 #define HTC_RX_FRAME_HEADER_SIZE 40
262 struct ath9k_htc_rxbuf {
265 struct ath_htc_rx_status rxstatus;
266 struct list_head list;
269 struct ath9k_htc_rx {
270 int last_rssi; /* FIXME: per-STA */
271 struct list_head rxbuf;
272 spinlock_t rxbuflock;
275 #define ATH9K_HTC_TX_CLEANUP_INTERVAL 50 /* ms */
276 #define ATH9K_HTC_TX_TIMEOUT_INTERVAL 3000 /* ms */
277 #define ATH9K_HTC_TX_RESERVE 10
278 #define ATH9K_HTC_TX_TIMEOUT_COUNT 40
279 #define ATH9K_HTC_TX_THRESHOLD (MAX_TX_BUF_NUM - ATH9K_HTC_TX_RESERVE)
281 #define ATH9K_HTC_OP_TX_QUEUES_STOP BIT(0)
282 #define ATH9K_HTC_OP_TX_DRAIN BIT(1)
284 struct ath9k_htc_tx {
287 struct sk_buff_head mgmt_ep_queue;
288 struct sk_buff_head cab_ep_queue;
289 struct sk_buff_head data_be_queue;
290 struct sk_buff_head data_bk_queue;
291 struct sk_buff_head data_vi_queue;
292 struct sk_buff_head data_vo_queue;
293 struct sk_buff_head tx_failed;
294 DECLARE_BITMAP(tx_slot, MAX_TX_BUF_NUM);
295 struct timer_list cleanup_timer;
299 struct ath9k_htc_tx_ctl {
300 u8 type; /* ATH9K_HTC_* */
304 unsigned long timestamp;
307 static inline struct ath9k_htc_tx_ctl *HTC_SKB_CB(struct sk_buff *skb)
309 struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
311 BUILD_BUG_ON(sizeof(struct ath9k_htc_tx_ctl) >
312 IEEE80211_TX_INFO_DRIVER_DATA_SIZE);
313 return (struct ath9k_htc_tx_ctl *) &tx_info->driver_data;
316 #ifdef CONFIG_ATH9K_HTC_DEBUGFS
318 #define TX_STAT_INC(c) (hif_dev->htc_handle->drv_priv->debug.tx_stats.c++)
319 #define RX_STAT_INC(c) (hif_dev->htc_handle->drv_priv->debug.rx_stats.c++)
320 #define CAB_STAT_INC priv->debug.tx_stats.cab_queued++
322 #define TX_QSTAT_INC(q) (priv->debug.tx_stats.queue_stats[q]++)
324 void ath9k_htc_err_stat_rx(struct ath9k_htc_priv *priv,
325 struct ath_htc_rx_status *rxs);
327 struct ath_tx_stats {
334 u32 queue_stats[WME_NUM_AC];
337 struct ath_rx_stats {
346 u32 err_decrypt_busy;
348 u32 err_phy_stats[ATH9K_PHYERR_MAX];
352 struct dentry *debugfs_phy;
353 struct ath_tx_stats tx_stats;
354 struct ath_rx_stats rx_stats;
359 #define TX_STAT_INC(c) do { } while (0)
360 #define RX_STAT_INC(c) do { } while (0)
361 #define CAB_STAT_INC do { } while (0)
363 #define TX_QSTAT_INC(c) do { } while (0)
365 static inline void ath9k_htc_err_stat_rx(struct ath9k_htc_priv *priv,
366 struct ath_htc_rx_status *rxs)
370 #endif /* CONFIG_ATH9K_HTC_DEBUGFS */
372 #define ATH_LED_PIN_DEF 1
373 #define ATH_LED_PIN_9287 10
374 #define ATH_LED_PIN_9271 15
375 #define ATH_LED_PIN_7010 12
377 #define BSTUCK_THRESHOLD 10
380 * Adjust these when the max. no of beaconing interfaces is
383 #define DEFAULT_SWBA_RESPONSE 40 /* in TUs */
384 #define MIN_SWBA_RESPONSE 10 /* in TUs */
386 struct htc_beacon_config {
387 struct ieee80211_vif *bslot[ATH9K_HTC_MAX_BCN_VIF];
396 unsigned long bt_priority_time;
397 int bt_stomp_type; /* Types of BT stomping */
403 void ath_htc_init_btcoex_work(struct ath9k_htc_priv *priv);
404 void ath_htc_resume_btcoex_work(struct ath9k_htc_priv *priv);
405 void ath_htc_cancel_btcoex_work(struct ath9k_htc_priv *priv);
407 #define OP_INVALID BIT(0)
408 #define OP_SCANNING BIT(1)
409 #define OP_ENABLE_BEACON BIT(2)
410 #define OP_BT_PRIORITY_DETECTED BIT(3)
411 #define OP_BT_SCAN BIT(4)
412 #define OP_ANI_RUNNING BIT(5)
413 #define OP_TSF_RESET BIT(6)
415 struct ath9k_htc_priv {
417 struct ieee80211_hw *hw;
419 struct htc_target *htc;
422 u16 fw_version_major;
423 u16 fw_version_minor;
425 enum htc_endpoint_id wmi_cmd_ep;
426 enum htc_endpoint_id beacon_ep;
427 enum htc_endpoint_id cab_ep;
428 enum htc_endpoint_id uapsd_ep;
429 enum htc_endpoint_id mgmt_ep;
430 enum htc_endpoint_id data_be_ep;
431 enum htc_endpoint_id data_bk_ep;
432 enum htc_endpoint_id data_vi_ep;
433 enum htc_endpoint_id data_vo_ep;
438 u8 vif_sta_pos[ATH9K_HTC_MAX_VIF];
441 u8 num_sta_assoc_vif;
450 bool reconfig_beacon;
451 unsigned int rxfilter;
453 struct ath9k_hw_cal_data caldata;
454 struct ieee80211_supported_band sbands[IEEE80211_NUM_BANDS];
456 spinlock_t beacon_lock;
457 struct htc_beacon_config cur_beacon_conf;
459 struct ath9k_htc_rx rx;
460 struct ath9k_htc_tx tx;
462 struct tasklet_struct swba_tasklet;
463 struct tasklet_struct rx_tasklet;
464 struct delayed_work ani_work;
465 struct tasklet_struct tx_failed_tasklet;
466 struct work_struct ps_work;
467 struct work_struct fatal_work;
469 struct mutex htc_pm_lock;
470 unsigned long ps_usecount;
474 #ifdef CONFIG_MAC80211_LEDS
475 enum led_brightness brightness;
478 struct led_classdev led_cdev;
479 struct work_struct led_work;
484 int hwq_map[WME_NUM_AC];
486 struct ath_btcoex btcoex;
487 struct delayed_work coex_period_work;
488 struct delayed_work duty_cycle_work;
489 #ifdef CONFIG_ATH9K_HTC_DEBUGFS
490 struct ath9k_debug debug;
495 static inline void ath_read_cachesize(struct ath_common *common, int *csz)
497 common->bus_ops->read_cachesize(common, csz);
500 void ath9k_htc_reset(struct ath9k_htc_priv *priv);
502 void ath9k_htc_assign_bslot(struct ath9k_htc_priv *priv,
503 struct ieee80211_vif *vif);
504 void ath9k_htc_remove_bslot(struct ath9k_htc_priv *priv,
505 struct ieee80211_vif *vif);
506 void ath9k_htc_set_tsfadjust(struct ath9k_htc_priv *priv,
507 struct ieee80211_vif *vif);
508 void ath9k_htc_beaconq_config(struct ath9k_htc_priv *priv);
509 void ath9k_htc_beacon_config(struct ath9k_htc_priv *priv,
510 struct ieee80211_vif *vif);
511 void ath9k_htc_beacon_reconfig(struct ath9k_htc_priv *priv);
512 void ath9k_htc_swba(struct ath9k_htc_priv *priv,
513 struct wmi_event_swba *swba);
515 void ath9k_htc_rxep(void *priv, struct sk_buff *skb,
516 enum htc_endpoint_id ep_id);
517 void ath9k_htc_txep(void *priv, struct sk_buff *skb, enum htc_endpoint_id ep_id,
519 void ath9k_htc_beaconep(void *drv_priv, struct sk_buff *skb,
520 enum htc_endpoint_id ep_id, bool txok);
522 int ath9k_htc_update_cap_target(struct ath9k_htc_priv *priv,
524 void ath9k_htc_station_work(struct work_struct *work);
525 void ath9k_htc_aggr_work(struct work_struct *work);
526 void ath9k_htc_ani_work(struct work_struct *work);
527 void ath9k_htc_start_ani(struct ath9k_htc_priv *priv);
528 void ath9k_htc_stop_ani(struct ath9k_htc_priv *priv);
530 int ath9k_tx_init(struct ath9k_htc_priv *priv);
531 int ath9k_htc_tx_start(struct ath9k_htc_priv *priv,
532 struct sk_buff *skb, u8 slot, bool is_cab);
533 void ath9k_tx_cleanup(struct ath9k_htc_priv *priv);
534 bool ath9k_htc_txq_setup(struct ath9k_htc_priv *priv, int subtype);
535 int ath9k_htc_cabq_setup(struct ath9k_htc_priv *priv);
536 int get_hw_qnum(u16 queue, int *hwq_map);
537 int ath_htc_txq_update(struct ath9k_htc_priv *priv, int qnum,
538 struct ath9k_tx_queue_info *qinfo);
539 void ath9k_htc_check_stop_queues(struct ath9k_htc_priv *priv);
540 void ath9k_htc_check_wake_queues(struct ath9k_htc_priv *priv);
541 int ath9k_htc_tx_get_slot(struct ath9k_htc_priv *priv);
542 void ath9k_htc_tx_clear_slot(struct ath9k_htc_priv *priv, int slot);
543 void ath9k_htc_tx_drain(struct ath9k_htc_priv *priv);
544 void ath9k_htc_txstatus(struct ath9k_htc_priv *priv, void *wmi_event);
545 void ath9k_htc_tx_failed(struct ath9k_htc_priv *priv);
546 void ath9k_tx_failed_tasklet(unsigned long data);
547 void ath9k_htc_tx_cleanup_timer(unsigned long data);
549 int ath9k_rx_init(struct ath9k_htc_priv *priv);
550 void ath9k_rx_cleanup(struct ath9k_htc_priv *priv);
551 void ath9k_host_rx_init(struct ath9k_htc_priv *priv);
552 void ath9k_rx_tasklet(unsigned long data);
553 u32 ath9k_htc_calcrxfilter(struct ath9k_htc_priv *priv);
555 void ath9k_htc_ps_wakeup(struct ath9k_htc_priv *priv);
556 void ath9k_htc_ps_restore(struct ath9k_htc_priv *priv);
557 void ath9k_ps_work(struct work_struct *work);
558 bool ath9k_htc_setpower(struct ath9k_htc_priv *priv,
559 enum ath9k_power_mode mode);
561 void ath9k_start_rfkill_poll(struct ath9k_htc_priv *priv);
562 void ath9k_htc_rfkill_poll_state(struct ieee80211_hw *hw);
563 void ath9k_htc_radio_enable(struct ieee80211_hw *hw);
564 void ath9k_htc_radio_disable(struct ieee80211_hw *hw);
566 #ifdef CONFIG_MAC80211_LEDS
567 void ath9k_init_leds(struct ath9k_htc_priv *priv);
568 void ath9k_deinit_leds(struct ath9k_htc_priv *priv);
569 void ath9k_led_work(struct work_struct *work);
571 static inline void ath9k_init_leds(struct ath9k_htc_priv *priv)
575 static inline void ath9k_deinit_leds(struct ath9k_htc_priv *priv)
579 static inline void ath9k_led_work(struct work_struct *work)
584 int ath9k_htc_probe_device(struct htc_target *htc_handle, struct device *dev,
585 u16 devid, char *product, u32 drv_info);
586 void ath9k_htc_disconnect_device(struct htc_target *htc_handle, bool hotunplug);
588 void ath9k_htc_suspend(struct htc_target *htc_handle);
589 int ath9k_htc_resume(struct htc_target *htc_handle);
591 #ifdef CONFIG_ATH9K_HTC_DEBUGFS
592 int ath9k_htc_init_debug(struct ath_hw *ah);
594 static inline int ath9k_htc_init_debug(struct ath_hw *ah) { return 0; };
595 #endif /* CONFIG_ATH9K_HTC_DEBUGFS */