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(struct timer_list
*t
);
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 */