2 * Copyright (c) 2010 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/leds.h>
26 #include <linux/slab.h>
27 #include <net/mac80211.h>
34 #define ATH_STA_SHORT_CALINTERVAL 1000 /* 1 second */
35 #define ATH_AP_SHORT_CALINTERVAL 100 /* 100 ms */
36 #define ATH_ANI_POLLINTERVAL 100 /* 100 ms */
37 #define ATH_LONG_CALINTERVAL 30000 /* 30 seconds */
38 #define ATH_RESTART_CALINTERVAL 1200000 /* 20 minutes */
40 #define ATH_DEFAULT_BMISS_LIMIT 10
41 #define IEEE80211_MS_TO_TU(x) (((x) * 1000) / 1024)
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;
69 #define ATH9K_HTC_HDRSPACE sizeof(struct htc_frame_hdr)
71 #define ATH9K_HTC_AMPDU 1
72 #define ATH9K_HTC_NORMAL 2
73 #define ATH9K_HTC_BEACON 3
74 #define ATH9K_HTC_MGMT 4
76 #define ATH9K_HTC_TX_CTSONLY 0x1
77 #define ATH9K_HTC_TX_RTSCTS 0x2
78 #define ATH9K_HTC_TX_USE_MIN_RATE 0x100
85 __be32 flags; /* ATH9K_HTC_TX_* */
103 struct tx_beacon_header {
109 struct ath9k_htc_cap_target {
115 u8 tx_chainmask_legacy;
121 struct ath9k_htc_target_vif {
130 #define ATH_HTC_STA_AUTH 0x0001
131 #define ATH_HTC_STA_QOS 0x0002
132 #define ATH_HTC_STA_ERP 0x0004
133 #define ATH_HTC_STA_HT 0x0008
135 struct ath9k_htc_target_sta {
136 u8 macaddr[ETH_ALEN];
141 __be16 flags; /* ATH_HTC_STA_* */
147 struct ath9k_htc_target_aggr {
154 #define ATH_HTC_RATE_MAX 30
156 #define WLAN_RC_DS_FLAG 0x01
157 #define WLAN_RC_40_FLAG 0x02
158 #define WLAN_RC_SGI_FLAG 0x04
159 #define WLAN_RC_HT_FLAG 0x08
161 struct ath9k_htc_rateset {
163 u8 rs_rates[ATH_HTC_RATE_MAX];
166 struct ath9k_htc_rate {
167 struct ath9k_htc_rateset legacy_rates;
168 struct ath9k_htc_rateset ht_rates;
171 struct ath9k_htc_target_rate {
175 struct ath9k_htc_rate rates;
178 struct ath9k_htc_target_int_stats {
187 struct ath9k_htc_target_tx_stats {
199 struct ath9k_htc_target_rx_stats {
205 #define ATH9K_HTC_MAX_VIF 2
206 #define ATH9K_HTC_MAX_BCN_VIF 2
208 #define INC_VIF(_priv, _type) do { \
210 case NL80211_IFTYPE_STATION: \
211 _priv->num_sta_vif++; \
213 case NL80211_IFTYPE_ADHOC: \
214 _priv->num_ibss_vif++; \
216 case NL80211_IFTYPE_AP: \
217 _priv->num_ap_vif++; \
224 #define DEC_VIF(_priv, _type) do { \
226 case NL80211_IFTYPE_STATION: \
227 _priv->num_sta_vif--; \
229 case NL80211_IFTYPE_ADHOC: \
230 _priv->num_ibss_vif--; \
232 case NL80211_IFTYPE_AP: \
233 _priv->num_ap_vif--; \
240 struct ath9k_htc_vif {
243 bool beacon_configured;
248 struct ath9k_vif_iter_data {
249 const u8 *hw_macaddr;
253 #define ATH9K_HTC_MAX_STA 8
254 #define ATH9K_HTC_MAX_TID 8
256 enum tid_aggr_state {
263 struct ath9k_htc_sta {
265 enum tid_aggr_state tid_state[ATH9K_HTC_MAX_TID];
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 int last_rssi; /* FIXME: per-STA */
280 struct list_head rxbuf;
281 spinlock_t rxbuflock;
284 #define ATH9K_HTC_TX_CLEANUP_INTERVAL 50 /* ms */
285 #define ATH9K_HTC_TX_TIMEOUT_INTERVAL 2500 /* ms */
286 #define ATH9K_HTC_TX_RESERVE 10
287 #define ATH9K_HTC_TX_TIMEOUT_COUNT 20
288 #define ATH9K_HTC_TX_THRESHOLD (MAX_TX_BUF_NUM - ATH9K_HTC_TX_RESERVE)
290 #define ATH9K_HTC_OP_TX_QUEUES_STOP BIT(0)
291 #define ATH9K_HTC_OP_TX_DRAIN BIT(1)
293 struct ath9k_htc_tx {
296 struct sk_buff_head mgmt_ep_queue;
297 struct sk_buff_head cab_ep_queue;
298 struct sk_buff_head data_be_queue;
299 struct sk_buff_head data_bk_queue;
300 struct sk_buff_head data_vi_queue;
301 struct sk_buff_head data_vo_queue;
302 struct sk_buff_head tx_failed;
303 DECLARE_BITMAP(tx_slot, MAX_TX_BUF_NUM);
304 struct timer_list cleanup_timer;
308 struct ath9k_htc_tx_ctl {
309 u8 type; /* ATH9K_HTC_* */
313 unsigned long timestamp;
316 static inline struct ath9k_htc_tx_ctl *HTC_SKB_CB(struct sk_buff *skb)
318 struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
320 BUILD_BUG_ON(sizeof(struct ath9k_htc_tx_ctl) >
321 IEEE80211_TX_INFO_DRIVER_DATA_SIZE);
322 return (struct ath9k_htc_tx_ctl *) &tx_info->driver_data;
325 #ifdef CONFIG_ATH9K_HTC_DEBUGFS
327 #define TX_STAT_INC(c) (hif_dev->htc_handle->drv_priv->debug.tx_stats.c++)
328 #define RX_STAT_INC(c) (hif_dev->htc_handle->drv_priv->debug.rx_stats.c++)
329 #define CAB_STAT_INC priv->debug.tx_stats.cab_queued++
331 #define TX_QSTAT_INC(q) (priv->debug.tx_stats.queue_stats[q]++)
333 void ath9k_htc_err_stat_rx(struct ath9k_htc_priv *priv,
334 struct ath_htc_rx_status *rxs);
336 struct ath_tx_stats {
343 u32 queue_stats[WME_NUM_AC];
346 struct ath_rx_stats {
355 u32 err_decrypt_busy;
357 u32 err_phy_stats[ATH9K_PHYERR_MAX];
361 struct dentry *debugfs_phy;
362 struct dentry *debugfs_tgt_int_stats;
363 struct dentry *debugfs_tgt_tx_stats;
364 struct dentry *debugfs_tgt_rx_stats;
365 struct dentry *debugfs_xmit;
366 struct dentry *debugfs_recv;
367 struct dentry *debugfs_slot;
368 struct dentry *debugfs_queue;
369 struct dentry *debugfs_debug;
370 struct ath_tx_stats tx_stats;
371 struct ath_rx_stats rx_stats;
376 #define TX_STAT_INC(c) do { } while (0)
377 #define RX_STAT_INC(c) do { } while (0)
378 #define CAB_STAT_INC do { } while (0)
380 #define TX_QSTAT_INC(c) do { } while (0)
382 static inline void ath9k_htc_err_stat_rx(struct ath9k_htc_priv *priv,
383 struct ath_htc_rx_status *rxs)
387 #endif /* CONFIG_ATH9K_HTC_DEBUGFS */
389 #define ATH_LED_PIN_DEF 1
390 #define ATH_LED_PIN_9287 10
391 #define ATH_LED_PIN_9271 15
392 #define ATH_LED_PIN_7010 12
393 #define ATH_LED_ON_DURATION_IDLE 350 /* in msecs */
394 #define ATH_LED_OFF_DURATION_IDLE 250 /* in msecs */
404 struct ath9k_htc_priv *priv;
405 struct led_classdev led_cdev;
406 enum ath_led_type led_type;
407 struct delayed_work brightness_work;
413 #define BSTUCK_THRESHOLD 10
416 * Adjust these when the max. no of beaconing interfaces is
419 #define DEFAULT_SWBA_RESPONSE 40 /* in TUs */
420 #define MIN_SWBA_RESPONSE 10 /* in TUs */
422 struct htc_beacon_config {
423 struct ieee80211_vif *bslot[ATH9K_HTC_MAX_BCN_VIF];
432 unsigned long bt_priority_time;
433 int bt_stomp_type; /* Types of BT stomping */
439 void ath_htc_init_btcoex_work(struct ath9k_htc_priv *priv);
440 void ath_htc_resume_btcoex_work(struct ath9k_htc_priv *priv);
441 void ath_htc_cancel_btcoex_work(struct ath9k_htc_priv *priv);
443 #define OP_INVALID BIT(0)
444 #define OP_SCANNING BIT(1)
445 #define OP_LED_ASSOCIATED BIT(2)
446 #define OP_LED_ON BIT(3)
447 #define OP_ENABLE_BEACON BIT(4)
448 #define OP_LED_DEINIT BIT(5)
449 #define OP_BT_PRIORITY_DETECTED BIT(6)
450 #define OP_BT_SCAN BIT(7)
451 #define OP_ANI_RUNNING BIT(8)
452 #define OP_TSF_RESET BIT(9)
454 struct ath9k_htc_priv {
456 struct ieee80211_hw *hw;
458 struct htc_target *htc;
461 u16 fw_version_major;
462 u16 fw_version_minor;
464 enum htc_endpoint_id wmi_cmd_ep;
465 enum htc_endpoint_id beacon_ep;
466 enum htc_endpoint_id cab_ep;
467 enum htc_endpoint_id uapsd_ep;
468 enum htc_endpoint_id mgmt_ep;
469 enum htc_endpoint_id data_be_ep;
470 enum htc_endpoint_id data_bk_ep;
471 enum htc_endpoint_id data_vi_ep;
472 enum htc_endpoint_id data_vo_ep;
477 u8 vif_sta_pos[ATH9K_HTC_MAX_VIF];
488 bool reconfig_beacon;
489 unsigned int rxfilter;
491 struct ath9k_hw_cal_data caldata;
492 struct ieee80211_supported_band sbands[IEEE80211_NUM_BANDS];
494 spinlock_t beacon_lock;
495 struct htc_beacon_config cur_beacon_conf;
497 struct ath9k_htc_rx rx;
498 struct ath9k_htc_tx tx;
500 struct tasklet_struct swba_tasklet;
501 struct tasklet_struct rx_tasklet;
502 struct delayed_work ani_work;
503 struct tasklet_struct tx_failed_tasklet;
504 struct work_struct ps_work;
505 struct work_struct fatal_work;
507 struct mutex htc_pm_lock;
508 unsigned long ps_usecount;
512 struct ath_led radio_led;
513 struct ath_led assoc_led;
514 struct ath_led tx_led;
515 struct ath_led rx_led;
516 struct delayed_work ath9k_led_blink_work;
518 int led_off_duration;
524 int hwq_map[WME_NUM_AC];
526 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);
563 void ath9k_htc_station_work(struct work_struct *work);
564 void ath9k_htc_aggr_work(struct work_struct *work);
565 void ath9k_htc_ani_work(struct work_struct *work);
566 void ath9k_htc_start_ani(struct ath9k_htc_priv *priv);
567 void ath9k_htc_stop_ani(struct ath9k_htc_priv *priv);
569 int ath9k_tx_init(struct ath9k_htc_priv *priv);
570 int ath9k_htc_tx_start(struct ath9k_htc_priv *priv,
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_htc_tx_failed(struct ath9k_htc_priv *priv);
585 void ath9k_tx_failed_tasklet(unsigned long data);
586 void ath9k_htc_tx_cleanup_timer(unsigned long data);
588 int ath9k_rx_init(struct ath9k_htc_priv *priv);
589 void ath9k_rx_cleanup(struct ath9k_htc_priv *priv);
590 void ath9k_host_rx_init(struct ath9k_htc_priv *priv);
591 void ath9k_rx_tasklet(unsigned long data);
592 u32 ath9k_htc_calcrxfilter(struct ath9k_htc_priv *priv);
594 void ath9k_htc_ps_wakeup(struct ath9k_htc_priv *priv);
595 void ath9k_htc_ps_restore(struct ath9k_htc_priv *priv);
596 void ath9k_ps_work(struct work_struct *work);
597 bool ath9k_htc_setpower(struct ath9k_htc_priv *priv,
598 enum ath9k_power_mode mode);
600 void ath9k_start_rfkill_poll(struct ath9k_htc_priv *priv);
601 void ath9k_htc_rfkill_poll_state(struct ieee80211_hw *hw);
602 void ath9k_htc_radio_enable(struct ieee80211_hw *hw);
603 void ath9k_htc_radio_disable(struct ieee80211_hw *hw);
604 void ath9k_led_stop_brightness(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);
608 int ath9k_htc_probe_device(struct htc_target *htc_handle, struct device *dev,
609 u16 devid, char *product, u32 drv_info);
610 void ath9k_htc_disconnect_device(struct htc_target *htc_handle, bool hotunplug);
612 void ath9k_htc_suspend(struct htc_target *htc_handle);
613 int ath9k_htc_resume(struct htc_target *htc_handle);
615 #ifdef CONFIG_ATH9K_HTC_DEBUGFS
616 int ath9k_htc_debug_create_root(void);
617 void ath9k_htc_debug_remove_root(void);
618 int ath9k_htc_init_debug(struct ath_hw *ah);
619 void ath9k_htc_exit_debug(struct ath_hw *ah);
621 static inline int ath9k_htc_debug_create_root(void) { return 0; };
622 static inline void ath9k_htc_debug_remove_root(void) {};
623 static inline int ath9k_htc_init_debug(struct ath_hw *ah) { return 0; };
624 static inline void ath9k_htc_exit_debug(struct ath_hw *ah) {};
625 #endif /* CONFIG_ATH9K_HTC_DEBUGFS */