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];
265 struct work_struct rc_update_work;
266 struct ath9k_htc_priv *htc_priv;
269 #define ATH9K_HTC_RXBUF 256
270 #define HTC_RX_FRAME_HEADER_SIZE 40
272 struct ath9k_htc_rxbuf {
275 struct ath_htc_rx_status rxstatus;
276 struct list_head list;
279 struct ath9k_htc_rx {
280 int last_rssi; /* FIXME: per-STA */
281 struct list_head rxbuf;
282 spinlock_t rxbuflock;
285 #define ATH9K_HTC_TX_CLEANUP_INTERVAL 50 /* ms */
286 #define ATH9K_HTC_TX_TIMEOUT_INTERVAL 3000 /* ms */
287 #define ATH9K_HTC_TX_RESERVE 10
288 #define ATH9K_HTC_TX_TIMEOUT_COUNT 40
289 #define ATH9K_HTC_TX_THRESHOLD (MAX_TX_BUF_NUM - ATH9K_HTC_TX_RESERVE)
291 #define ATH9K_HTC_OP_TX_QUEUES_STOP BIT(0)
292 #define ATH9K_HTC_OP_TX_DRAIN BIT(1)
294 struct ath9k_htc_tx {
297 struct sk_buff_head mgmt_ep_queue;
298 struct sk_buff_head cab_ep_queue;
299 struct sk_buff_head data_be_queue;
300 struct sk_buff_head data_bk_queue;
301 struct sk_buff_head data_vi_queue;
302 struct sk_buff_head data_vo_queue;
303 struct sk_buff_head tx_failed;
304 DECLARE_BITMAP(tx_slot, MAX_TX_BUF_NUM);
305 struct timer_list cleanup_timer;
309 struct ath9k_htc_tx_ctl {
310 u8 type; /* ATH9K_HTC_* */
314 unsigned long timestamp;
317 static inline struct ath9k_htc_tx_ctl *HTC_SKB_CB(struct sk_buff *skb)
319 struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
321 BUILD_BUG_ON(sizeof(struct ath9k_htc_tx_ctl) >
322 IEEE80211_TX_INFO_DRIVER_DATA_SIZE);
323 return (struct ath9k_htc_tx_ctl *) &tx_info->driver_data;
326 #ifdef CONFIG_ATH9K_HTC_DEBUGFS
328 #define TX_STAT_INC(c) (hif_dev->htc_handle->drv_priv->debug.tx_stats.c++)
329 #define TX_STAT_ADD(c, a) (hif_dev->htc_handle->drv_priv->debug.tx_stats.c += a)
330 #define RX_STAT_INC(c) (hif_dev->htc_handle->drv_priv->debug.rx_stats.c++)
331 #define RX_STAT_ADD(c, a) (hif_dev->htc_handle->drv_priv->debug.rx_stats.c += a)
332 #define CAB_STAT_INC priv->debug.tx_stats.cab_queued++
334 #define TX_QSTAT_INC(q) (priv->debug.tx_stats.queue_stats[q]++)
336 void ath9k_htc_err_stat_rx(struct ath9k_htc_priv *priv,
337 struct ath_htc_rx_status *rxs);
339 struct ath_tx_stats {
344 u32 skb_success_bytes;
347 u32 queue_stats[IEEE80211_NUM_ACS];
350 struct ath_rx_stats {
353 u32 skb_completed_bytes;
360 u32 err_decrypt_busy;
362 u32 err_phy_stats[ATH9K_PHYERR_MAX];
366 struct dentry *debugfs_phy;
367 struct ath_tx_stats tx_stats;
368 struct ath_rx_stats rx_stats;
371 void ath9k_htc_get_et_strings(struct ieee80211_hw *hw,
372 struct ieee80211_vif *vif,
374 int ath9k_htc_get_et_sset_count(struct ieee80211_hw *hw,
375 struct ieee80211_vif *vif, int sset);
376 void ath9k_htc_get_et_stats(struct ieee80211_hw *hw,
377 struct ieee80211_vif *vif,
378 struct ethtool_stats *stats, u64 *data);
381 #define TX_STAT_INC(c) do { } while (0)
382 #define TX_STAT_ADD(c, a) do { } while (0)
383 #define RX_STAT_INC(c) do { } while (0)
384 #define RX_STAT_ADD(c, a) do { } while (0)
385 #define CAB_STAT_INC do { } while (0)
387 #define TX_QSTAT_INC(c) do { } while (0)
389 static inline void ath9k_htc_err_stat_rx(struct ath9k_htc_priv *priv,
390 struct ath_htc_rx_status *rxs)
394 #endif /* CONFIG_ATH9K_HTC_DEBUGFS */
396 #define ATH_LED_PIN_DEF 1
397 #define ATH_LED_PIN_9287 10
398 #define ATH_LED_PIN_9271 15
399 #define ATH_LED_PIN_7010 12
401 #define BSTUCK_THRESHOLD 10
404 * Adjust these when the max. no of beaconing interfaces is
407 #define DEFAULT_SWBA_RESPONSE 40 /* in TUs */
408 #define MIN_SWBA_RESPONSE 10 /* in TUs */
410 struct htc_beacon_config {
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_INVALID BIT(0)
444 #define OP_SCANNING BIT(1)
445 #define OP_ENABLE_BEACON BIT(2)
446 #define OP_BT_PRIORITY_DETECTED BIT(3)
447 #define OP_BT_SCAN BIT(4)
448 #define OP_ANI_RUNNING BIT(5)
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;
491 struct ieee80211_supported_band sbands[IEEE80211_NUM_BANDS];
493 spinlock_t beacon_lock;
494 struct htc_beacon_config cur_beacon_conf;
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;
521 int hwq_map[IEEE80211_NUM_ACS];
523 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
524 struct ath_btcoex btcoex;
527 struct delayed_work coex_period_work;
528 struct delayed_work duty_cycle_work;
529 #ifdef CONFIG_ATH9K_HTC_DEBUGFS
530 struct ath9k_debug debug;
535 static inline void ath_read_cachesize(struct ath_common *common, int *csz)
537 common->bus_ops->read_cachesize(common, csz);
540 void ath9k_htc_reset(struct ath9k_htc_priv *priv);
542 void ath9k_htc_assign_bslot(struct ath9k_htc_priv *priv,
543 struct ieee80211_vif *vif);
544 void ath9k_htc_remove_bslot(struct ath9k_htc_priv *priv,
545 struct ieee80211_vif *vif);
546 void ath9k_htc_set_tsfadjust(struct ath9k_htc_priv *priv,
547 struct ieee80211_vif *vif);
548 void ath9k_htc_beaconq_config(struct ath9k_htc_priv *priv);
549 void ath9k_htc_beacon_config(struct ath9k_htc_priv *priv,
550 struct ieee80211_vif *vif);
551 void ath9k_htc_beacon_reconfig(struct ath9k_htc_priv *priv);
552 void ath9k_htc_swba(struct ath9k_htc_priv *priv,
553 struct wmi_event_swba *swba);
555 void ath9k_htc_rxep(void *priv, struct sk_buff *skb,
556 enum htc_endpoint_id ep_id);
557 void ath9k_htc_txep(void *priv, struct sk_buff *skb, enum htc_endpoint_id ep_id,
559 void ath9k_htc_beaconep(void *drv_priv, struct sk_buff *skb,
560 enum htc_endpoint_id ep_id, bool txok);
562 int ath9k_htc_update_cap_target(struct ath9k_htc_priv *priv,
564 void ath9k_htc_ani_work(struct work_struct *work);
565 void ath9k_htc_start_ani(struct ath9k_htc_priv *priv);
566 void ath9k_htc_stop_ani(struct ath9k_htc_priv *priv);
568 int ath9k_tx_init(struct ath9k_htc_priv *priv);
569 int ath9k_htc_tx_start(struct ath9k_htc_priv *priv,
570 struct ieee80211_sta *sta,
571 struct sk_buff *skb, u8 slot, bool is_cab);
572 void ath9k_tx_cleanup(struct ath9k_htc_priv *priv);
573 bool ath9k_htc_txq_setup(struct ath9k_htc_priv *priv, int subtype);
574 int ath9k_htc_cabq_setup(struct ath9k_htc_priv *priv);
575 int get_hw_qnum(u16 queue, int *hwq_map);
576 int ath_htc_txq_update(struct ath9k_htc_priv *priv, int qnum,
577 struct ath9k_tx_queue_info *qinfo);
578 void ath9k_htc_check_stop_queues(struct ath9k_htc_priv *priv);
579 void ath9k_htc_check_wake_queues(struct ath9k_htc_priv *priv);
580 int ath9k_htc_tx_get_slot(struct ath9k_htc_priv *priv);
581 void ath9k_htc_tx_clear_slot(struct ath9k_htc_priv *priv, int slot);
582 void ath9k_htc_tx_drain(struct ath9k_htc_priv *priv);
583 void ath9k_htc_txstatus(struct ath9k_htc_priv *priv, void *wmi_event);
584 void ath9k_tx_failed_tasklet(unsigned long data);
585 void ath9k_htc_tx_cleanup_timer(unsigned long data);
587 int ath9k_rx_init(struct ath9k_htc_priv *priv);
588 void ath9k_rx_cleanup(struct ath9k_htc_priv *priv);
589 void ath9k_host_rx_init(struct ath9k_htc_priv *priv);
590 void ath9k_rx_tasklet(unsigned long data);
591 u32 ath9k_htc_calcrxfilter(struct ath9k_htc_priv *priv);
593 void ath9k_htc_ps_wakeup(struct ath9k_htc_priv *priv);
594 void ath9k_htc_ps_restore(struct ath9k_htc_priv *priv);
595 void ath9k_ps_work(struct work_struct *work);
596 bool ath9k_htc_setpower(struct ath9k_htc_priv *priv,
597 enum ath9k_power_mode mode);
599 void ath9k_start_rfkill_poll(struct ath9k_htc_priv *priv);
600 void ath9k_htc_rfkill_poll_state(struct ieee80211_hw *hw);
602 struct base_eep_header *ath9k_htc_get_eeprom_base(struct ath9k_htc_priv *priv);
604 #ifdef CONFIG_MAC80211_LEDS
605 void ath9k_configure_leds(struct ath9k_htc_priv *priv);
606 void ath9k_init_leds(struct ath9k_htc_priv *priv);
607 void ath9k_deinit_leds(struct ath9k_htc_priv *priv);
608 void ath9k_led_work(struct work_struct *work);
610 static inline void ath9k_configure_leds(struct ath9k_htc_priv *priv)
614 static inline void ath9k_init_leds(struct ath9k_htc_priv *priv)
618 static inline void ath9k_deinit_leds(struct ath9k_htc_priv *priv)
622 static inline void ath9k_led_work(struct work_struct *work)
627 int ath9k_htc_probe_device(struct htc_target *htc_handle, struct device *dev,
628 u16 devid, char *product, u32 drv_info);
629 void ath9k_htc_disconnect_device(struct htc_target *htc_handle, bool hotunplug);
631 void ath9k_htc_suspend(struct htc_target *htc_handle);
632 int ath9k_htc_resume(struct htc_target *htc_handle);
634 #ifdef CONFIG_ATH9K_HTC_DEBUGFS
635 int ath9k_htc_init_debug(struct ath_hw *ah);
637 static inline int ath9k_htc_init_debug(struct ath_hw *ah) { return 0; };
638 #endif /* CONFIG_ATH9K_HTC_DEBUGFS */