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;
47 #ifdef CONFIG_MAC80211_LEDS
48 extern int ath9k_htc_led_blink;
65 #define ATH9K_HTC_AMPDU 1
66 #define ATH9K_HTC_NORMAL 2
67 #define ATH9K_HTC_BEACON 3
68 #define ATH9K_HTC_MGMT 4
70 #define ATH9K_HTC_TX_CTSONLY 0x1
71 #define ATH9K_HTC_TX_RTSCTS 0x2
78 __be32 flags; /* ATH9K_HTC_TX_* */
96 struct tx_beacon_header {
102 #define MAX_TX_AMPDU_SUBFRAMES_9271 17
103 #define MAX_TX_AMPDU_SUBFRAMES_7010 22
105 struct ath9k_htc_cap_target {
113 struct ath9k_htc_target_vif {
122 struct ath9k_htc_target_sta {
123 u8 macaddr[ETH_ALEN];
134 struct ath9k_htc_target_aggr {
141 #define ATH_HTC_RATE_MAX 30
143 #define WLAN_RC_DS_FLAG 0x01
144 #define WLAN_RC_40_FLAG 0x02
145 #define WLAN_RC_SGI_FLAG 0x04
146 #define WLAN_RC_HT_FLAG 0x08
147 #define ATH_RC_TX_STBC_FLAG 0x20
149 struct ath9k_htc_rateset {
151 u8 rs_rates[ATH_HTC_RATE_MAX];
154 struct ath9k_htc_rate {
155 struct ath9k_htc_rateset legacy_rates;
156 struct ath9k_htc_rateset ht_rates;
159 struct ath9k_htc_target_rate {
163 struct ath9k_htc_rate rates;
166 struct ath9k_htc_target_rate_mask {
173 struct ath9k_htc_target_int_stats {
182 struct ath9k_htc_target_tx_stats {
194 struct ath9k_htc_target_rx_stats {
200 #define ATH9K_HTC_MAX_VIF 2
201 #define ATH9K_HTC_MAX_BCN_VIF 2
203 #define INC_VIF(_priv, _type) do { \
205 case NL80211_IFTYPE_STATION: \
206 _priv->num_sta_vif++; \
208 case NL80211_IFTYPE_ADHOC: \
209 _priv->num_ibss_vif++; \
211 case NL80211_IFTYPE_AP: \
212 _priv->num_ap_vif++; \
214 case NL80211_IFTYPE_MESH_POINT: \
215 _priv->num_mbss_vif++; \
222 #define DEC_VIF(_priv, _type) do { \
224 case NL80211_IFTYPE_STATION: \
225 _priv->num_sta_vif--; \
227 case NL80211_IFTYPE_ADHOC: \
228 _priv->num_ibss_vif--; \
230 case NL80211_IFTYPE_AP: \
231 _priv->num_ap_vif--; \
233 case NL80211_IFTYPE_MESH_POINT: \
234 _priv->num_mbss_vif--; \
241 struct ath9k_htc_vif {
244 bool beacon_configured;
249 struct ath9k_vif_iter_data {
250 const u8 *hw_macaddr;
254 #define ATH9K_HTC_MAX_STA 8
255 #define ATH9K_HTC_MAX_TID 8
257 enum tid_aggr_state {
264 struct ath9k_htc_sta {
266 enum tid_aggr_state tid_state[ATH9K_HTC_MAX_TID];
267 struct work_struct rc_update_work;
268 struct ath9k_htc_priv *htc_priv;
271 #define ATH9K_HTC_RXBUF 256
272 #define HTC_RX_FRAME_HEADER_SIZE 40
274 struct ath9k_htc_rxbuf {
277 struct ath_htc_rx_status rxstatus;
278 struct list_head list;
281 struct ath9k_htc_rx {
282 struct list_head rxbuf;
283 spinlock_t rxbuflock;
286 #define ATH9K_HTC_TX_CLEANUP_INTERVAL 50 /* ms */
287 #define ATH9K_HTC_TX_TIMEOUT_INTERVAL 3000 /* ms */
288 #define ATH9K_HTC_TX_RESERVE 10
289 #define ATH9K_HTC_TX_TIMEOUT_COUNT 40
290 #define ATH9K_HTC_TX_THRESHOLD (MAX_TX_BUF_NUM - ATH9K_HTC_TX_RESERVE)
292 #define ATH9K_HTC_OP_TX_QUEUES_STOP BIT(0)
293 #define ATH9K_HTC_OP_TX_DRAIN BIT(1)
295 struct ath9k_htc_tx {
298 struct sk_buff_head mgmt_ep_queue;
299 struct sk_buff_head cab_ep_queue;
300 struct sk_buff_head data_be_queue;
301 struct sk_buff_head data_bk_queue;
302 struct sk_buff_head data_vi_queue;
303 struct sk_buff_head data_vo_queue;
304 struct sk_buff_head tx_failed;
305 DECLARE_BITMAP(tx_slot, MAX_TX_BUF_NUM);
306 struct timer_list cleanup_timer;
310 struct ath9k_htc_tx_ctl {
311 u8 type; /* ATH9K_HTC_* */
315 unsigned long timestamp;
318 static inline struct ath9k_htc_tx_ctl *HTC_SKB_CB(struct sk_buff *skb)
320 struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
322 BUILD_BUG_ON(sizeof(struct ath9k_htc_tx_ctl) >
323 IEEE80211_TX_INFO_DRIVER_DATA_SIZE);
324 return (struct ath9k_htc_tx_ctl *) &tx_info->driver_data;
327 #ifdef CONFIG_ATH9K_HTC_DEBUGFS
329 #define TX_STAT_INC(c) (hif_dev->htc_handle->drv_priv->debug.tx_stats.c++)
330 #define TX_STAT_ADD(c, a) (hif_dev->htc_handle->drv_priv->debug.tx_stats.c += a)
331 #define RX_STAT_INC(c) (hif_dev->htc_handle->drv_priv->debug.skbrx_stats.c++)
332 #define RX_STAT_ADD(c, a) (hif_dev->htc_handle->drv_priv->debug.skbrx_stats.c += a)
333 #define CAB_STAT_INC priv->debug.tx_stats.cab_queued++
335 #define TX_QSTAT_INC(q) (priv->debug.tx_stats.queue_stats[q]++)
337 void ath9k_htc_err_stat_rx(struct ath9k_htc_priv *priv,
338 struct ath_rx_status *rs);
340 struct ath_tx_stats {
345 u32 skb_success_bytes;
348 u32 queue_stats[IEEE80211_NUM_ACS];
351 struct ath_skbrx_stats {
354 u32 skb_completed_bytes;
359 struct dentry *debugfs_phy;
360 struct ath_tx_stats tx_stats;
361 struct ath_rx_stats rx_stats;
362 struct ath_skbrx_stats skbrx_stats;
365 void ath9k_htc_get_et_strings(struct ieee80211_hw *hw,
366 struct ieee80211_vif *vif,
368 int ath9k_htc_get_et_sset_count(struct ieee80211_hw *hw,
369 struct ieee80211_vif *vif, int sset);
370 void ath9k_htc_get_et_stats(struct ieee80211_hw *hw,
371 struct ieee80211_vif *vif,
372 struct ethtool_stats *stats, u64 *data);
375 #define TX_STAT_INC(c) do { } while (0)
376 #define TX_STAT_ADD(c, a) do { } while (0)
377 #define RX_STAT_INC(c) do { } while (0)
378 #define RX_STAT_ADD(c, a) do { } while (0)
379 #define CAB_STAT_INC do { } while (0)
381 #define TX_QSTAT_INC(c) do { } while (0)
383 static inline void ath9k_htc_err_stat_rx(struct ath9k_htc_priv *priv,
384 struct ath_rx_status *rs)
388 #endif /* CONFIG_ATH9K_HTC_DEBUGFS */
390 #define ATH_LED_PIN_DEF 1
391 #define ATH_LED_PIN_9287 10
392 #define ATH_LED_PIN_9271 15
393 #define ATH_LED_PIN_7010 12
395 #define BSTUCK_THRESHOLD 10
398 * Adjust these when the max. no of beaconing interfaces is
401 #define DEFAULT_SWBA_RESPONSE 40 /* in TUs */
402 #define MIN_SWBA_RESPONSE 10 /* in TUs */
406 OK, /* no change needed */
407 UPDATE, /* update pending */
408 COMMIT /* beacon sent, commit change */
409 } updateslot; /* slot time update fsm */
411 struct ieee80211_vif *bslot[ATH9K_HTC_MAX_BCN_VIF];
420 unsigned long bt_priority_time;
421 int bt_stomp_type; /* Types of BT stomping */
427 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
428 void ath9k_htc_init_btcoex(struct ath9k_htc_priv *priv, char *product);
429 void ath9k_htc_start_btcoex(struct ath9k_htc_priv *priv);
430 void ath9k_htc_stop_btcoex(struct ath9k_htc_priv *priv);
432 static inline void ath9k_htc_init_btcoex(struct ath9k_htc_priv *priv, char *product)
435 static inline void ath9k_htc_start_btcoex(struct ath9k_htc_priv *priv)
438 static inline void ath9k_htc_stop_btcoex(struct ath9k_htc_priv *priv)
441 #endif /* CONFIG_ATH9K_BTCOEX_SUPPORT */
443 #define OP_BT_PRIORITY_DETECTED 3
445 #define OP_TSF_RESET 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;
489 unsigned long fw_flags;
491 struct ath9k_hw_cal_data caldata;
492 struct ath_spec_scan_priv spec_priv;
494 spinlock_t beacon_lock;
495 struct ath_beacon_config cur_beacon_conf;
496 struct htc_beacon beacon;
498 struct ath9k_htc_rx rx;
499 struct ath9k_htc_tx tx;
501 struct tasklet_struct swba_tasklet;
502 struct tasklet_struct rx_tasklet;
503 struct delayed_work ani_work;
504 struct tasklet_struct tx_failed_tasklet;
505 struct work_struct ps_work;
506 struct work_struct fatal_work;
508 struct mutex htc_pm_lock;
509 unsigned long ps_usecount;
513 #ifdef CONFIG_MAC80211_LEDS
514 enum led_brightness brightness;
517 struct led_classdev led_cdev;
518 struct work_struct led_work;
522 int hwq_map[IEEE80211_NUM_ACS];
524 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
525 struct ath_btcoex btcoex;
528 struct delayed_work coex_period_work;
529 struct delayed_work duty_cycle_work;
530 #ifdef CONFIG_ATH9K_HTC_DEBUGFS
531 struct ath9k_debug debug;
534 struct ieee80211_vif *csa_vif;
537 static inline void ath_read_cachesize(struct ath_common *common, int *csz)
539 common->bus_ops->read_cachesize(common, csz);
542 void ath9k_htc_reset(struct ath9k_htc_priv *priv);
544 void ath9k_htc_assign_bslot(struct ath9k_htc_priv *priv,
545 struct ieee80211_vif *vif);
546 void ath9k_htc_remove_bslot(struct ath9k_htc_priv *priv,
547 struct ieee80211_vif *vif);
548 void ath9k_htc_set_tsfadjust(struct ath9k_htc_priv *priv,
549 struct ieee80211_vif *vif);
550 void ath9k_htc_beaconq_config(struct ath9k_htc_priv *priv);
551 void ath9k_htc_beacon_config(struct ath9k_htc_priv *priv,
552 struct ieee80211_vif *vif);
553 void ath9k_htc_beacon_reconfig(struct ath9k_htc_priv *priv);
554 void ath9k_htc_swba(struct ath9k_htc_priv *priv,
555 struct wmi_event_swba *swba);
557 void ath9k_htc_rxep(void *priv, struct sk_buff *skb,
558 enum htc_endpoint_id ep_id);
559 void ath9k_htc_txep(void *priv, struct sk_buff *skb, enum htc_endpoint_id ep_id,
561 void ath9k_htc_beaconep(void *drv_priv, struct sk_buff *skb,
562 enum htc_endpoint_id ep_id, bool txok);
564 int ath9k_htc_update_cap_target(struct ath9k_htc_priv *priv,
566 void ath9k_htc_ani_work(struct work_struct *work);
567 void ath9k_htc_start_ani(struct ath9k_htc_priv *priv);
568 void ath9k_htc_stop_ani(struct ath9k_htc_priv *priv);
570 int ath9k_tx_init(struct ath9k_htc_priv *priv);
571 int ath9k_htc_tx_start(struct ath9k_htc_priv *priv,
572 struct ieee80211_sta *sta,
573 struct sk_buff *skb, u8 slot, bool is_cab);
574 void ath9k_tx_cleanup(struct ath9k_htc_priv *priv);
575 bool ath9k_htc_txq_setup(struct ath9k_htc_priv *priv, int subtype);
576 int ath9k_htc_cabq_setup(struct ath9k_htc_priv *priv);
577 int get_hw_qnum(u16 queue, int *hwq_map);
578 int ath_htc_txq_update(struct ath9k_htc_priv *priv, int qnum,
579 struct ath9k_tx_queue_info *qinfo);
580 void ath9k_htc_check_stop_queues(struct ath9k_htc_priv *priv);
581 void ath9k_htc_check_wake_queues(struct ath9k_htc_priv *priv);
582 int ath9k_htc_tx_get_slot(struct ath9k_htc_priv *priv);
583 void ath9k_htc_tx_clear_slot(struct ath9k_htc_priv *priv, int slot);
584 void ath9k_htc_tx_drain(struct ath9k_htc_priv *priv);
585 void ath9k_htc_txstatus(struct ath9k_htc_priv *priv, void *wmi_event);
586 void ath9k_tx_failed_tasklet(unsigned long data);
587 void ath9k_htc_tx_cleanup_timer(unsigned long data);
588 bool ath9k_htc_csa_is_finished(struct ath9k_htc_priv *priv);
590 int ath9k_rx_init(struct ath9k_htc_priv *priv);
591 void ath9k_rx_cleanup(struct ath9k_htc_priv *priv);
592 void ath9k_host_rx_init(struct ath9k_htc_priv *priv);
593 void ath9k_rx_tasklet(unsigned long data);
594 u32 ath9k_htc_calcrxfilter(struct ath9k_htc_priv *priv);
596 void ath9k_htc_ps_wakeup(struct ath9k_htc_priv *priv);
597 void ath9k_htc_ps_restore(struct ath9k_htc_priv *priv);
598 void ath9k_ps_work(struct work_struct *work);
599 bool ath9k_htc_setpower(struct ath9k_htc_priv *priv,
600 enum ath9k_power_mode mode);
602 void ath9k_start_rfkill_poll(struct ath9k_htc_priv *priv);
603 void ath9k_htc_rfkill_poll_state(struct ieee80211_hw *hw);
605 struct base_eep_header *ath9k_htc_get_eeprom_base(struct ath9k_htc_priv *priv);
607 #ifdef CONFIG_MAC80211_LEDS
608 void ath9k_configure_leds(struct ath9k_htc_priv *priv);
609 void ath9k_init_leds(struct ath9k_htc_priv *priv);
610 void ath9k_deinit_leds(struct ath9k_htc_priv *priv);
611 void ath9k_led_work(struct work_struct *work);
613 static inline void ath9k_configure_leds(struct ath9k_htc_priv *priv)
617 static inline void ath9k_init_leds(struct ath9k_htc_priv *priv)
621 static inline void ath9k_deinit_leds(struct ath9k_htc_priv *priv)
625 static inline void ath9k_led_work(struct work_struct *work)
630 int ath9k_htc_probe_device(struct htc_target *htc_handle, struct device *dev,
631 u16 devid, char *product, u32 drv_info);
632 void ath9k_htc_disconnect_device(struct htc_target *htc_handle, bool hotunplug);
634 void ath9k_htc_suspend(struct htc_target *htc_handle);
635 int ath9k_htc_resume(struct htc_target *htc_handle);
637 #ifdef CONFIG_ATH9K_HTC_DEBUGFS
638 int ath9k_htc_init_debug(struct ath_hw *ah);
639 void ath9k_htc_deinit_debug(struct ath9k_htc_priv *priv);
641 static inline int ath9k_htc_init_debug(struct ath_hw *ah) { return 0; };
642 static inline void ath9k_htc_deinit_debug(struct ath9k_htc_priv *priv)
645 #endif /* CONFIG_ATH9K_HTC_DEBUGFS */