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 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
144 #define ATH_RC_TX_STBC_FLAG 0x20
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++; \
211 case NL80211_IFTYPE_MESH_POINT: \
212 _priv->num_mbss_vif++; \
219 #define DEC_VIF(_priv, _type) do { \
221 case NL80211_IFTYPE_STATION: \
222 _priv->num_sta_vif--; \
224 case NL80211_IFTYPE_ADHOC: \
225 _priv->num_ibss_vif--; \
227 case NL80211_IFTYPE_AP: \
228 _priv->num_ap_vif--; \
230 case NL80211_IFTYPE_MESH_POINT: \
231 _priv->num_mbss_vif--; \
238 struct ath9k_htc_vif {
241 bool beacon_configured;
246 struct ath9k_vif_iter_data {
247 const u8 *hw_macaddr;
251 #define ATH9K_HTC_MAX_STA 8
252 #define ATH9K_HTC_MAX_TID 8
254 enum tid_aggr_state {
261 struct ath9k_htc_sta {
263 enum tid_aggr_state tid_state[ATH9K_HTC_MAX_TID];
264 struct work_struct rc_update_work;
265 struct ath9k_htc_priv *htc_priv;
268 #define ATH9K_HTC_RXBUF 256
269 #define HTC_RX_FRAME_HEADER_SIZE 40
271 struct ath9k_htc_rxbuf {
274 struct ath_htc_rx_status rxstatus;
275 struct list_head list;
278 struct ath9k_htc_rx {
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 3000 /* ms */
285 #define ATH9K_HTC_TX_RESERVE 10
286 #define ATH9K_HTC_TX_TIMEOUT_COUNT 40
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 TX_STAT_ADD(c, a) (hif_dev->htc_handle->drv_priv->debug.tx_stats.c += a)
328 #define RX_STAT_INC(c) (hif_dev->htc_handle->drv_priv->debug.rx_stats.c++)
329 #define RX_STAT_ADD(c, a) (hif_dev->htc_handle->drv_priv->debug.rx_stats.c += a)
330 #define CAB_STAT_INC priv->debug.tx_stats.cab_queued++
332 #define TX_QSTAT_INC(q) (priv->debug.tx_stats.queue_stats[q]++)
334 void ath9k_htc_err_stat_rx(struct ath9k_htc_priv *priv,
335 struct ath_htc_rx_status *rxs);
337 struct ath_tx_stats {
342 u32 skb_success_bytes;
345 u32 queue_stats[IEEE80211_NUM_ACS];
348 struct ath_rx_stats {
351 u32 skb_completed_bytes;
358 u32 err_decrypt_busy;
360 u32 err_phy_stats[ATH9K_PHYERR_MAX];
364 struct dentry *debugfs_phy;
365 struct ath_tx_stats tx_stats;
366 struct ath_rx_stats rx_stats;
369 void ath9k_htc_get_et_strings(struct ieee80211_hw *hw,
370 struct ieee80211_vif *vif,
372 int ath9k_htc_get_et_sset_count(struct ieee80211_hw *hw,
373 struct ieee80211_vif *vif, int sset);
374 void ath9k_htc_get_et_stats(struct ieee80211_hw *hw,
375 struct ieee80211_vif *vif,
376 struct ethtool_stats *stats, u64 *data);
379 #define TX_STAT_INC(c) do { } while (0)
380 #define TX_STAT_ADD(c, a) do { } while (0)
381 #define RX_STAT_INC(c) do { } while (0)
382 #define RX_STAT_ADD(c, a) do { } while (0)
383 #define CAB_STAT_INC do { } while (0)
385 #define TX_QSTAT_INC(c) do { } while (0)
387 static inline void ath9k_htc_err_stat_rx(struct ath9k_htc_priv *priv,
388 struct ath_htc_rx_status *rxs)
392 #endif /* CONFIG_ATH9K_HTC_DEBUGFS */
394 #define ATH_LED_PIN_DEF 1
395 #define ATH_LED_PIN_9287 10
396 #define ATH_LED_PIN_9271 15
397 #define ATH_LED_PIN_7010 12
399 #define BSTUCK_THRESHOLD 10
402 * Adjust these when the max. no of beaconing interfaces is
405 #define DEFAULT_SWBA_RESPONSE 40 /* in TUs */
406 #define MIN_SWBA_RESPONSE 10 /* in TUs */
410 OK, /* no change needed */
411 UPDATE, /* update pending */
412 COMMIT /* beacon sent, commit change */
413 } updateslot; /* slot time update fsm */
415 struct ieee80211_vif *bslot[ATH9K_HTC_MAX_BCN_VIF];
424 unsigned long bt_priority_time;
425 int bt_stomp_type; /* Types of BT stomping */
431 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
432 void ath9k_htc_init_btcoex(struct ath9k_htc_priv *priv, char *product);
433 void ath9k_htc_start_btcoex(struct ath9k_htc_priv *priv);
434 void ath9k_htc_stop_btcoex(struct ath9k_htc_priv *priv);
436 static inline void ath9k_htc_init_btcoex(struct ath9k_htc_priv *priv, char *product)
439 static inline void ath9k_htc_start_btcoex(struct ath9k_htc_priv *priv)
442 static inline void ath9k_htc_stop_btcoex(struct ath9k_htc_priv *priv)
445 #endif /* CONFIG_ATH9K_BTCOEX_SUPPORT */
447 #define OP_BT_PRIORITY_DETECTED BIT(3)
448 #define OP_BT_SCAN BIT(4)
449 #define OP_TSF_RESET BIT(6)
451 struct ath9k_htc_priv {
453 struct ieee80211_hw *hw;
455 struct htc_target *htc;
458 u16 fw_version_major;
459 u16 fw_version_minor;
461 enum htc_endpoint_id wmi_cmd_ep;
462 enum htc_endpoint_id beacon_ep;
463 enum htc_endpoint_id cab_ep;
464 enum htc_endpoint_id uapsd_ep;
465 enum htc_endpoint_id mgmt_ep;
466 enum htc_endpoint_id data_be_ep;
467 enum htc_endpoint_id data_bk_ep;
468 enum htc_endpoint_id data_vi_ep;
469 enum htc_endpoint_id data_vo_ep;
474 u8 vif_sta_pos[ATH9K_HTC_MAX_VIF];
478 u8 num_sta_assoc_vif;
486 bool reconfig_beacon;
487 unsigned int rxfilter;
488 unsigned long op_flags;
490 struct ath9k_hw_cal_data caldata;
492 spinlock_t beacon_lock;
493 struct ath_beacon_config cur_beacon_conf;
494 struct htc_beacon beacon;
496 struct ath9k_htc_rx rx;
497 struct ath9k_htc_tx tx;
499 struct tasklet_struct swba_tasklet;
500 struct tasklet_struct rx_tasklet;
501 struct delayed_work ani_work;
502 struct tasklet_struct tx_failed_tasklet;
503 struct work_struct ps_work;
504 struct work_struct fatal_work;
506 struct mutex htc_pm_lock;
507 unsigned long ps_usecount;
511 #ifdef CONFIG_MAC80211_LEDS
512 enum led_brightness brightness;
515 struct led_classdev led_cdev;
516 struct work_struct led_work;
520 int hwq_map[IEEE80211_NUM_ACS];
522 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
523 struct ath_btcoex btcoex;
526 struct delayed_work coex_period_work;
527 struct delayed_work duty_cycle_work;
528 #ifdef CONFIG_ATH9K_HTC_DEBUGFS
529 struct ath9k_debug debug;
534 static inline void ath_read_cachesize(struct ath_common *common, int *csz)
536 common->bus_ops->read_cachesize(common, csz);
539 void ath9k_htc_reset(struct ath9k_htc_priv *priv);
541 void ath9k_htc_assign_bslot(struct ath9k_htc_priv *priv,
542 struct ieee80211_vif *vif);
543 void ath9k_htc_remove_bslot(struct ath9k_htc_priv *priv,
544 struct ieee80211_vif *vif);
545 void ath9k_htc_set_tsfadjust(struct ath9k_htc_priv *priv,
546 struct ieee80211_vif *vif);
547 void ath9k_htc_beaconq_config(struct ath9k_htc_priv *priv);
548 void ath9k_htc_beacon_config(struct ath9k_htc_priv *priv,
549 struct ieee80211_vif *vif);
550 void ath9k_htc_beacon_reconfig(struct ath9k_htc_priv *priv);
551 void ath9k_htc_swba(struct ath9k_htc_priv *priv,
552 struct wmi_event_swba *swba);
554 void ath9k_htc_rxep(void *priv, struct sk_buff *skb,
555 enum htc_endpoint_id ep_id);
556 void ath9k_htc_txep(void *priv, struct sk_buff *skb, enum htc_endpoint_id ep_id,
558 void ath9k_htc_beaconep(void *drv_priv, struct sk_buff *skb,
559 enum htc_endpoint_id ep_id, bool txok);
561 int ath9k_htc_update_cap_target(struct ath9k_htc_priv *priv,
563 void ath9k_htc_ani_work(struct work_struct *work);
564 void ath9k_htc_start_ani(struct ath9k_htc_priv *priv);
565 void ath9k_htc_stop_ani(struct ath9k_htc_priv *priv);
567 int ath9k_tx_init(struct ath9k_htc_priv *priv);
568 int ath9k_htc_tx_start(struct ath9k_htc_priv *priv,
569 struct ieee80211_sta *sta,
570 struct sk_buff *skb, u8 slot, bool is_cab);
571 void ath9k_tx_cleanup(struct ath9k_htc_priv *priv);
572 bool ath9k_htc_txq_setup(struct ath9k_htc_priv *priv, int subtype);
573 int ath9k_htc_cabq_setup(struct ath9k_htc_priv *priv);
574 int get_hw_qnum(u16 queue, int *hwq_map);
575 int ath_htc_txq_update(struct ath9k_htc_priv *priv, int qnum,
576 struct ath9k_tx_queue_info *qinfo);
577 void ath9k_htc_check_stop_queues(struct ath9k_htc_priv *priv);
578 void ath9k_htc_check_wake_queues(struct ath9k_htc_priv *priv);
579 int ath9k_htc_tx_get_slot(struct ath9k_htc_priv *priv);
580 void ath9k_htc_tx_clear_slot(struct ath9k_htc_priv *priv, int slot);
581 void ath9k_htc_tx_drain(struct ath9k_htc_priv *priv);
582 void ath9k_htc_txstatus(struct ath9k_htc_priv *priv, void *wmi_event);
583 void ath9k_tx_failed_tasklet(unsigned long data);
584 void ath9k_htc_tx_cleanup_timer(unsigned long data);
586 int ath9k_rx_init(struct ath9k_htc_priv *priv);
587 void ath9k_rx_cleanup(struct ath9k_htc_priv *priv);
588 void ath9k_host_rx_init(struct ath9k_htc_priv *priv);
589 void ath9k_rx_tasklet(unsigned long data);
590 u32 ath9k_htc_calcrxfilter(struct ath9k_htc_priv *priv);
592 void ath9k_htc_ps_wakeup(struct ath9k_htc_priv *priv);
593 void ath9k_htc_ps_restore(struct ath9k_htc_priv *priv);
594 void ath9k_ps_work(struct work_struct *work);
595 bool ath9k_htc_setpower(struct ath9k_htc_priv *priv,
596 enum ath9k_power_mode mode);
598 void ath9k_start_rfkill_poll(struct ath9k_htc_priv *priv);
599 void ath9k_htc_rfkill_poll_state(struct ieee80211_hw *hw);
601 struct base_eep_header *ath9k_htc_get_eeprom_base(struct ath9k_htc_priv *priv);
603 #ifdef CONFIG_MAC80211_LEDS
604 void ath9k_configure_leds(struct ath9k_htc_priv *priv);
605 void ath9k_init_leds(struct ath9k_htc_priv *priv);
606 void ath9k_deinit_leds(struct ath9k_htc_priv *priv);
607 void ath9k_led_work(struct work_struct *work);
609 static inline void ath9k_configure_leds(struct ath9k_htc_priv *priv)
613 static inline void ath9k_init_leds(struct ath9k_htc_priv *priv)
617 static inline void ath9k_deinit_leds(struct ath9k_htc_priv *priv)
621 static inline void ath9k_led_work(struct work_struct *work)
626 int ath9k_htc_probe_device(struct htc_target *htc_handle, struct device *dev,
627 u16 devid, char *product, u32 drv_info);
628 void ath9k_htc_disconnect_device(struct htc_target *htc_handle, bool hotunplug);
630 void ath9k_htc_suspend(struct htc_target *htc_handle);
631 int ath9k_htc_resume(struct htc_target *htc_handle);
633 #ifdef CONFIG_ATH9K_HTC_DEBUGFS
634 int ath9k_htc_init_debug(struct ath_hw *ah);
636 static inline int ath9k_htc_init_debug(struct ath_hw *ah) { return 0; };
637 #endif /* CONFIG_ATH9K_HTC_DEBUGFS */