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_stats {
179 __be32 tx_shortretry;
182 __be32 ht_txunaggr_xretry;
183 __be32 ht_tx_xretries;
186 #define ATH9K_HTC_MAX_VIF 2
187 #define ATH9K_HTC_MAX_BCN_VIF 2
189 #define INC_VIF(_priv, _type) do { \
191 case NL80211_IFTYPE_STATION: \
192 _priv->num_sta_vif++; \
194 case NL80211_IFTYPE_ADHOC: \
195 _priv->num_ibss_vif++; \
197 case NL80211_IFTYPE_AP: \
198 _priv->num_ap_vif++; \
205 #define DEC_VIF(_priv, _type) do { \
207 case NL80211_IFTYPE_STATION: \
208 _priv->num_sta_vif--; \
210 case NL80211_IFTYPE_ADHOC: \
211 _priv->num_ibss_vif--; \
213 case NL80211_IFTYPE_AP: \
214 _priv->num_ap_vif--; \
221 struct ath9k_htc_vif {
224 bool beacon_configured;
229 struct ath9k_vif_iter_data {
230 const u8 *hw_macaddr;
234 #define ATH9K_HTC_MAX_STA 8
235 #define ATH9K_HTC_MAX_TID 8
237 enum tid_aggr_state {
244 struct ath9k_htc_sta {
246 enum tid_aggr_state tid_state[ATH9K_HTC_MAX_TID];
249 #define ATH9K_HTC_RXBUF 256
250 #define HTC_RX_FRAME_HEADER_SIZE 40
252 struct ath9k_htc_rxbuf {
255 struct ath_htc_rx_status rxstatus;
256 struct list_head list;
259 struct ath9k_htc_rx {
260 int last_rssi; /* FIXME: per-STA */
261 struct list_head rxbuf;
262 spinlock_t rxbuflock;
265 #define ATH9K_HTC_TX_RESERVE 10
266 #define ATH9K_HTC_TX_THRESHOLD (MAX_TX_BUF_NUM - ATH9K_HTC_TX_RESERVE)
268 #define ATH9K_HTC_OP_TX_QUEUES_STOP BIT(0)
269 #define ATH9K_HTC_OP_TX_DRAIN BIT(1)
271 struct ath9k_htc_tx {
274 struct sk_buff_head mgmt_ep_queue;
275 struct sk_buff_head cab_ep_queue;
276 struct sk_buff_head data_be_queue;
277 struct sk_buff_head data_bk_queue;
278 struct sk_buff_head data_vi_queue;
279 struct sk_buff_head data_vo_queue;
280 struct sk_buff_head tx_failed;
281 DECLARE_BITMAP(tx_slot, MAX_TX_BUF_NUM);
285 struct ath9k_htc_tx_ctl {
286 u8 type; /* ATH9K_HTC_* */
292 static inline struct ath9k_htc_tx_ctl *HTC_SKB_CB(struct sk_buff *skb)
294 struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
296 BUILD_BUG_ON(sizeof(struct ath9k_htc_tx_ctl) >
297 IEEE80211_TX_INFO_DRIVER_DATA_SIZE);
298 return (struct ath9k_htc_tx_ctl *) &tx_info->driver_data;
301 #ifdef CONFIG_ATH9K_HTC_DEBUGFS
303 #define TX_STAT_INC(c) (hif_dev->htc_handle->drv_priv->debug.tx_stats.c++)
304 #define RX_STAT_INC(c) (hif_dev->htc_handle->drv_priv->debug.rx_stats.c++)
305 #define CAB_STAT_INC priv->debug.tx_stats.cab_queued++
307 #define TX_QSTAT_INC(q) (priv->debug.tx_stats.queue_stats[q]++)
309 void ath9k_htc_err_stat_rx(struct ath9k_htc_priv *priv,
310 struct ath_htc_rx_status *rxs);
312 struct ath_tx_stats {
319 u32 queue_stats[WME_NUM_AC];
322 struct ath_rx_stats {
331 u32 err_decrypt_busy;
333 u32 err_phy_stats[ATH9K_PHYERR_MAX];
337 struct dentry *debugfs_phy;
338 struct dentry *debugfs_tgt_stats;
339 struct dentry *debugfs_xmit;
340 struct dentry *debugfs_recv;
341 struct dentry *debugfs_slot;
342 struct dentry *debugfs_queue;
343 struct ath_tx_stats tx_stats;
344 struct ath_rx_stats rx_stats;
350 #define TX_STAT_INC(c) do { } while (0)
351 #define RX_STAT_INC(c) do { } while (0)
352 #define CAB_STAT_INC do { } while (0)
354 #define TX_QSTAT_INC(c) do { } while (0)
356 static inline void ath9k_htc_err_stat_rx(struct ath9k_htc_priv *priv,
357 struct ath_htc_rx_status *rxs)
361 #endif /* CONFIG_ATH9K_HTC_DEBUGFS */
363 #define ATH_LED_PIN_DEF 1
364 #define ATH_LED_PIN_9287 10
365 #define ATH_LED_PIN_9271 15
366 #define ATH_LED_PIN_7010 12
367 #define ATH_LED_ON_DURATION_IDLE 350 /* in msecs */
368 #define ATH_LED_OFF_DURATION_IDLE 250 /* in msecs */
378 struct ath9k_htc_priv *priv;
379 struct led_classdev led_cdev;
380 enum ath_led_type led_type;
381 struct delayed_work brightness_work;
387 #define BSTUCK_THRESHOLD 10
390 * Adjust these when the max. no of beaconing interfaces is
393 #define DEFAULT_SWBA_RESPONSE 40 /* in TUs */
394 #define MIN_SWBA_RESPONSE 10 /* in TUs */
396 struct htc_beacon_config {
397 struct ieee80211_vif *bslot[ATH9K_HTC_MAX_BCN_VIF];
406 unsigned long bt_priority_time;
407 int bt_stomp_type; /* Types of BT stomping */
413 void ath_htc_init_btcoex_work(struct ath9k_htc_priv *priv);
414 void ath_htc_resume_btcoex_work(struct ath9k_htc_priv *priv);
415 void ath_htc_cancel_btcoex_work(struct ath9k_htc_priv *priv);
417 #define OP_INVALID BIT(0)
418 #define OP_SCANNING BIT(1)
419 #define OP_LED_ASSOCIATED BIT(2)
420 #define OP_LED_ON BIT(3)
421 #define OP_ENABLE_BEACON BIT(4)
422 #define OP_LED_DEINIT BIT(5)
423 #define OP_BT_PRIORITY_DETECTED BIT(6)
424 #define OP_BT_SCAN BIT(7)
425 #define OP_ANI_RUNNING BIT(8)
426 #define OP_TSF_RESET BIT(9)
428 struct ath9k_htc_priv {
430 struct ieee80211_hw *hw;
432 struct htc_target *htc;
435 u16 fw_version_major;
436 u16 fw_version_minor;
438 enum htc_endpoint_id wmi_cmd_ep;
439 enum htc_endpoint_id beacon_ep;
440 enum htc_endpoint_id cab_ep;
441 enum htc_endpoint_id uapsd_ep;
442 enum htc_endpoint_id mgmt_ep;
443 enum htc_endpoint_id data_be_ep;
444 enum htc_endpoint_id data_bk_ep;
445 enum htc_endpoint_id data_vi_ep;
446 enum htc_endpoint_id data_vo_ep;
451 u8 vif_sta_pos[ATH9K_HTC_MAX_VIF];
462 bool reconfig_beacon;
463 unsigned int rxfilter;
465 struct ath9k_hw_cal_data caldata;
466 struct ieee80211_supported_band sbands[IEEE80211_NUM_BANDS];
468 spinlock_t beacon_lock;
469 struct htc_beacon_config cur_beacon_conf;
471 struct ath9k_htc_rx rx;
472 struct ath9k_htc_tx tx;
474 struct tasklet_struct swba_tasklet;
475 struct tasklet_struct rx_tasklet;
476 struct delayed_work ani_work;
477 struct tasklet_struct tx_failed_tasklet;
478 struct work_struct ps_work;
479 struct work_struct fatal_work;
481 struct mutex htc_pm_lock;
482 unsigned long ps_usecount;
486 struct ath_led radio_led;
487 struct ath_led assoc_led;
488 struct ath_led tx_led;
489 struct ath_led rx_led;
490 struct delayed_work ath9k_led_blink_work;
492 int led_off_duration;
498 int hwq_map[WME_NUM_AC];
500 struct ath_btcoex btcoex;
501 struct delayed_work coex_period_work;
502 struct delayed_work duty_cycle_work;
503 #ifdef CONFIG_ATH9K_HTC_DEBUGFS
504 struct ath9k_debug debug;
509 static inline void ath_read_cachesize(struct ath_common *common, int *csz)
511 common->bus_ops->read_cachesize(common, csz);
514 void ath9k_htc_reset(struct ath9k_htc_priv *priv);
516 void ath9k_htc_assign_bslot(struct ath9k_htc_priv *priv,
517 struct ieee80211_vif *vif);
518 void ath9k_htc_remove_bslot(struct ath9k_htc_priv *priv,
519 struct ieee80211_vif *vif);
520 void ath9k_htc_set_tsfadjust(struct ath9k_htc_priv *priv,
521 struct ieee80211_vif *vif);
522 void ath9k_htc_beaconq_config(struct ath9k_htc_priv *priv);
523 void ath9k_htc_beacon_config(struct ath9k_htc_priv *priv,
524 struct ieee80211_vif *vif);
525 void ath9k_htc_beacon_reconfig(struct ath9k_htc_priv *priv);
526 void ath9k_htc_swba(struct ath9k_htc_priv *priv,
527 struct wmi_event_swba *swba);
529 void ath9k_htc_rxep(void *priv, struct sk_buff *skb,
530 enum htc_endpoint_id ep_id);
531 void ath9k_htc_txep(void *priv, struct sk_buff *skb, enum htc_endpoint_id ep_id,
533 void ath9k_htc_beaconep(void *drv_priv, struct sk_buff *skb,
534 enum htc_endpoint_id ep_id, bool txok);
536 int ath9k_htc_update_cap_target(struct ath9k_htc_priv *priv);
537 void ath9k_htc_station_work(struct work_struct *work);
538 void ath9k_htc_aggr_work(struct work_struct *work);
539 void ath9k_htc_ani_work(struct work_struct *work);
540 void ath9k_htc_start_ani(struct ath9k_htc_priv *priv);
541 void ath9k_htc_stop_ani(struct ath9k_htc_priv *priv);
543 int ath9k_tx_init(struct ath9k_htc_priv *priv);
544 int ath9k_htc_tx_start(struct ath9k_htc_priv *priv,
545 struct sk_buff *skb, u8 slot, bool is_cab);
546 void ath9k_tx_cleanup(struct ath9k_htc_priv *priv);
547 bool ath9k_htc_txq_setup(struct ath9k_htc_priv *priv, int subtype);
548 int ath9k_htc_cabq_setup(struct ath9k_htc_priv *priv);
549 int get_hw_qnum(u16 queue, int *hwq_map);
550 int ath_htc_txq_update(struct ath9k_htc_priv *priv, int qnum,
551 struct ath9k_tx_queue_info *qinfo);
552 void ath9k_htc_check_stop_queues(struct ath9k_htc_priv *priv);
553 void ath9k_htc_check_wake_queues(struct ath9k_htc_priv *priv);
554 int ath9k_htc_tx_get_slot(struct ath9k_htc_priv *priv);
555 void ath9k_htc_tx_clear_slot(struct ath9k_htc_priv *priv, int slot);
556 void ath9k_htc_tx_drain(struct ath9k_htc_priv *priv);
557 void ath9k_htc_txstatus(struct ath9k_htc_priv *priv, void *wmi_event);
558 void ath9k_htc_tx_failed(struct ath9k_htc_priv *priv);
559 void ath9k_tx_failed_tasklet(unsigned long data);
561 int ath9k_rx_init(struct ath9k_htc_priv *priv);
562 void ath9k_rx_cleanup(struct ath9k_htc_priv *priv);
563 void ath9k_host_rx_init(struct ath9k_htc_priv *priv);
564 void ath9k_rx_tasklet(unsigned long data);
565 u32 ath9k_htc_calcrxfilter(struct ath9k_htc_priv *priv);
567 void ath9k_htc_ps_wakeup(struct ath9k_htc_priv *priv);
568 void ath9k_htc_ps_restore(struct ath9k_htc_priv *priv);
569 void ath9k_ps_work(struct work_struct *work);
570 bool ath9k_htc_setpower(struct ath9k_htc_priv *priv,
571 enum ath9k_power_mode mode);
573 void ath9k_start_rfkill_poll(struct ath9k_htc_priv *priv);
574 void ath9k_htc_rfkill_poll_state(struct ieee80211_hw *hw);
575 void ath9k_htc_radio_enable(struct ieee80211_hw *hw);
576 void ath9k_htc_radio_disable(struct ieee80211_hw *hw);
577 void ath9k_led_stop_brightness(struct ath9k_htc_priv *priv);
578 void ath9k_init_leds(struct ath9k_htc_priv *priv);
579 void ath9k_deinit_leds(struct ath9k_htc_priv *priv);
581 int ath9k_htc_probe_device(struct htc_target *htc_handle, struct device *dev,
582 u16 devid, char *product, u32 drv_info);
583 void ath9k_htc_disconnect_device(struct htc_target *htc_handle, bool hotunplug);
585 void ath9k_htc_suspend(struct htc_target *htc_handle);
586 int ath9k_htc_resume(struct htc_target *htc_handle);
588 #ifdef CONFIG_ATH9K_HTC_DEBUGFS
589 int ath9k_htc_debug_create_root(void);
590 void ath9k_htc_debug_remove_root(void);
591 int ath9k_htc_init_debug(struct ath_hw *ah);
592 void ath9k_htc_exit_debug(struct ath_hw *ah);
594 static inline int ath9k_htc_debug_create_root(void) { return 0; };
595 static inline void ath9k_htc_debug_remove_root(void) {};
596 static inline int ath9k_htc_init_debug(struct ath_hw *ah) { return 0; };
597 static inline void ath9k_htc_exit_debug(struct ath_hw *ah) {};
598 #endif /* CONFIG_ATH9K_HTC_DEBUGFS */