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 IEEE80211_MS_TO_TU(x) (((x) * 1000) / 1024)
43 #define TSF_TO_TU(_h, _l) \
44 ((((u32)(_h)) << 22) | (((u32)(_l)) >> 10))
46 extern struct ieee80211_ops ath9k_htc_ops
;
47 extern int htc_modparam_nohwcrypt
;
63 #define ATH9K_HTC_AMPDU 1
64 #define ATH9K_HTC_NORMAL 2
65 #define ATH9K_HTC_BEACON 3
66 #define ATH9K_HTC_MGMT 4
68 #define ATH9K_HTC_TX_CTSONLY 0x1
69 #define ATH9K_HTC_TX_RTSCTS 0x2
76 __be32 flags
; /* ATH9K_HTC_TX_* */
94 struct tx_beacon_header
{
100 #define MAX_TX_AMPDU_SUBFRAMES_9271 17
101 #define MAX_TX_AMPDU_SUBFRAMES_7010 22
103 struct ath9k_htc_cap_target
{
111 struct ath9k_htc_target_vif
{
120 struct ath9k_htc_target_sta
{
121 u8 macaddr
[ETH_ALEN
];
132 struct ath9k_htc_target_aggr
{
139 #define ATH_HTC_RATE_MAX 30
141 #define WLAN_RC_DS_FLAG 0x01
142 #define WLAN_RC_40_FLAG 0x02
143 #define WLAN_RC_SGI_FLAG 0x04
144 #define WLAN_RC_HT_FLAG 0x08
145 #define ATH_RC_TX_STBC_FLAG 0x20
147 struct ath9k_htc_rateset
{
149 u8 rs_rates
[ATH_HTC_RATE_MAX
];
152 struct ath9k_htc_rate
{
153 struct ath9k_htc_rateset legacy_rates
;
154 struct ath9k_htc_rateset ht_rates
;
157 struct ath9k_htc_target_rate
{
161 struct ath9k_htc_rate rates
;
164 struct ath9k_htc_target_rate_mask
{
171 struct ath9k_htc_target_int_stats
{
180 struct ath9k_htc_target_tx_stats
{
192 struct ath9k_htc_target_rx_stats
{
198 #define ATH9K_HTC_MAX_VIF 2
199 #define ATH9K_HTC_MAX_BCN_VIF 2
201 #define INC_VIF(_priv, _type) do { \
203 case NL80211_IFTYPE_STATION: \
204 _priv->num_sta_vif++; \
206 case NL80211_IFTYPE_ADHOC: \
207 _priv->num_ibss_vif++; \
209 case NL80211_IFTYPE_AP: \
210 _priv->num_ap_vif++; \
212 case NL80211_IFTYPE_MESH_POINT: \
213 _priv->num_mbss_vif++; \
220 #define DEC_VIF(_priv, _type) do { \
222 case NL80211_IFTYPE_STATION: \
223 _priv->num_sta_vif--; \
225 case NL80211_IFTYPE_ADHOC: \
226 _priv->num_ibss_vif--; \
228 case NL80211_IFTYPE_AP: \
229 _priv->num_ap_vif--; \
231 case NL80211_IFTYPE_MESH_POINT: \
232 _priv->num_mbss_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 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 */
408 struct htc_beacon_config
{
409 struct ieee80211_vif
*bslot
[ATH9K_HTC_MAX_BCN_VIF
];
418 unsigned long bt_priority_time
;
419 int bt_stomp_type
; /* Types of BT stomping */
425 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
426 void ath9k_htc_init_btcoex(struct ath9k_htc_priv
*priv
, char *product
);
427 void ath9k_htc_start_btcoex(struct ath9k_htc_priv
*priv
);
428 void ath9k_htc_stop_btcoex(struct ath9k_htc_priv
*priv
);
430 static inline void ath9k_htc_init_btcoex(struct ath9k_htc_priv
*priv
, char *product
)
433 static inline void ath9k_htc_start_btcoex(struct ath9k_htc_priv
*priv
)
436 static inline void ath9k_htc_stop_btcoex(struct ath9k_htc_priv
*priv
)
439 #endif /* CONFIG_ATH9K_BTCOEX_SUPPORT */
441 #define OP_INVALID BIT(0)
442 #define OP_SCANNING BIT(1)
443 #define OP_ENABLE_BEACON BIT(2)
444 #define OP_BT_PRIORITY_DETECTED BIT(3)
445 #define OP_BT_SCAN BIT(4)
446 #define OP_ANI_RUNNING BIT(5)
447 #define OP_TSF_RESET BIT(6)
449 struct ath9k_htc_priv
{
451 struct ieee80211_hw
*hw
;
453 struct htc_target
*htc
;
456 u16 fw_version_major
;
457 u16 fw_version_minor
;
459 enum htc_endpoint_id wmi_cmd_ep
;
460 enum htc_endpoint_id beacon_ep
;
461 enum htc_endpoint_id cab_ep
;
462 enum htc_endpoint_id uapsd_ep
;
463 enum htc_endpoint_id mgmt_ep
;
464 enum htc_endpoint_id data_be_ep
;
465 enum htc_endpoint_id data_bk_ep
;
466 enum htc_endpoint_id data_vi_ep
;
467 enum htc_endpoint_id data_vo_ep
;
472 u8 vif_sta_pos
[ATH9K_HTC_MAX_VIF
];
476 u8 num_sta_assoc_vif
;
484 bool reconfig_beacon
;
485 unsigned int rxfilter
;
486 unsigned long op_flags
;
488 struct ath9k_hw_cal_data caldata
;
489 struct ieee80211_supported_band sbands
[IEEE80211_NUM_BANDS
];
491 spinlock_t beacon_lock
;
492 struct htc_beacon_config cur_beacon_conf
;
494 struct ath9k_htc_rx rx
;
495 struct ath9k_htc_tx tx
;
497 struct tasklet_struct swba_tasklet
;
498 struct tasklet_struct rx_tasklet
;
499 struct delayed_work ani_work
;
500 struct tasklet_struct tx_failed_tasklet
;
501 struct work_struct ps_work
;
502 struct work_struct fatal_work
;
504 struct mutex htc_pm_lock
;
505 unsigned long ps_usecount
;
509 #ifdef CONFIG_MAC80211_LEDS
510 enum led_brightness brightness
;
513 struct led_classdev led_cdev
;
514 struct work_struct led_work
;
519 int hwq_map
[IEEE80211_NUM_ACS
];
521 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
522 struct ath_btcoex btcoex
;
525 struct delayed_work coex_period_work
;
526 struct delayed_work duty_cycle_work
;
527 #ifdef CONFIG_ATH9K_HTC_DEBUGFS
528 struct ath9k_debug debug
;
533 static inline void ath_read_cachesize(struct ath_common
*common
, int *csz
)
535 common
->bus_ops
->read_cachesize(common
, csz
);
538 void ath9k_htc_reset(struct ath9k_htc_priv
*priv
);
540 void ath9k_htc_assign_bslot(struct ath9k_htc_priv
*priv
,
541 struct ieee80211_vif
*vif
);
542 void ath9k_htc_remove_bslot(struct ath9k_htc_priv
*priv
,
543 struct ieee80211_vif
*vif
);
544 void ath9k_htc_set_tsfadjust(struct ath9k_htc_priv
*priv
,
545 struct ieee80211_vif
*vif
);
546 void ath9k_htc_beaconq_config(struct ath9k_htc_priv
*priv
);
547 void ath9k_htc_beacon_config(struct ath9k_htc_priv
*priv
,
548 struct ieee80211_vif
*vif
);
549 void ath9k_htc_beacon_reconfig(struct ath9k_htc_priv
*priv
);
550 void ath9k_htc_swba(struct ath9k_htc_priv
*priv
,
551 struct wmi_event_swba
*swba
);
553 void ath9k_htc_rxep(void *priv
, struct sk_buff
*skb
,
554 enum htc_endpoint_id ep_id
);
555 void ath9k_htc_txep(void *priv
, struct sk_buff
*skb
, enum htc_endpoint_id ep_id
,
557 void ath9k_htc_beaconep(void *drv_priv
, struct sk_buff
*skb
,
558 enum htc_endpoint_id ep_id
, bool txok
);
560 int ath9k_htc_update_cap_target(struct ath9k_htc_priv
*priv
,
562 void ath9k_htc_ani_work(struct work_struct
*work
);
563 void ath9k_htc_start_ani(struct ath9k_htc_priv
*priv
);
564 void ath9k_htc_stop_ani(struct ath9k_htc_priv
*priv
);
566 int ath9k_tx_init(struct ath9k_htc_priv
*priv
);
567 int ath9k_htc_tx_start(struct ath9k_htc_priv
*priv
,
568 struct ieee80211_sta
*sta
,
569 struct sk_buff
*skb
, u8 slot
, bool is_cab
);
570 void ath9k_tx_cleanup(struct ath9k_htc_priv
*priv
);
571 bool ath9k_htc_txq_setup(struct ath9k_htc_priv
*priv
, int subtype
);
572 int ath9k_htc_cabq_setup(struct ath9k_htc_priv
*priv
);
573 int get_hw_qnum(u16 queue
, int *hwq_map
);
574 int ath_htc_txq_update(struct ath9k_htc_priv
*priv
, int qnum
,
575 struct ath9k_tx_queue_info
*qinfo
);
576 void ath9k_htc_check_stop_queues(struct ath9k_htc_priv
*priv
);
577 void ath9k_htc_check_wake_queues(struct ath9k_htc_priv
*priv
);
578 int ath9k_htc_tx_get_slot(struct ath9k_htc_priv
*priv
);
579 void ath9k_htc_tx_clear_slot(struct ath9k_htc_priv
*priv
, int slot
);
580 void ath9k_htc_tx_drain(struct ath9k_htc_priv
*priv
);
581 void ath9k_htc_txstatus(struct ath9k_htc_priv
*priv
, void *wmi_event
);
582 void ath9k_tx_failed_tasklet(unsigned long data
);
583 void ath9k_htc_tx_cleanup_timer(unsigned long data
);
585 int ath9k_rx_init(struct ath9k_htc_priv
*priv
);
586 void ath9k_rx_cleanup(struct ath9k_htc_priv
*priv
);
587 void ath9k_host_rx_init(struct ath9k_htc_priv
*priv
);
588 void ath9k_rx_tasklet(unsigned long data
);
589 u32
ath9k_htc_calcrxfilter(struct ath9k_htc_priv
*priv
);
591 void ath9k_htc_ps_wakeup(struct ath9k_htc_priv
*priv
);
592 void ath9k_htc_ps_restore(struct ath9k_htc_priv
*priv
);
593 void ath9k_ps_work(struct work_struct
*work
);
594 bool ath9k_htc_setpower(struct ath9k_htc_priv
*priv
,
595 enum ath9k_power_mode mode
);
597 void ath9k_start_rfkill_poll(struct ath9k_htc_priv
*priv
);
598 void ath9k_htc_rfkill_poll_state(struct ieee80211_hw
*hw
);
600 struct base_eep_header
*ath9k_htc_get_eeprom_base(struct ath9k_htc_priv
*priv
);
602 #ifdef CONFIG_MAC80211_LEDS
603 void ath9k_init_leds(struct ath9k_htc_priv
*priv
);
604 void ath9k_deinit_leds(struct ath9k_htc_priv
*priv
);
605 void ath9k_led_work(struct work_struct
*work
);
607 static inline void ath9k_init_leds(struct ath9k_htc_priv
*priv
)
611 static inline void ath9k_deinit_leds(struct ath9k_htc_priv
*priv
)
615 static inline void ath9k_led_work(struct work_struct
*work
)
620 int ath9k_htc_probe_device(struct htc_target
*htc_handle
, struct device
*dev
,
621 u16 devid
, char *product
, u32 drv_info
);
622 void ath9k_htc_disconnect_device(struct htc_target
*htc_handle
, bool hotunplug
);
624 void ath9k_htc_suspend(struct htc_target
*htc_handle
);
625 int ath9k_htc_resume(struct htc_target
*htc_handle
);
627 #ifdef CONFIG_ATH9K_HTC_DEBUGFS
628 int ath9k_htc_init_debug(struct ath_hw
*ah
);
630 static inline int ath9k_htc_init_debug(struct ath_hw
*ah
) { return 0; };
631 #endif /* CONFIG_ATH9K_HTC_DEBUGFS */