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_ANI_POLLINTERVAL 100 /* 100 ms */
36 #define ATH_LONG_CALINTERVAL 30000 /* 30 seconds */
37 #define ATH_RESTART_CALINTERVAL 1200000 /* 20 minutes */
39 #define ATH_DEFAULT_BMISS_LIMIT 10
40 #define IEEE80211_MS_TO_TU(x) (((x) * 1000) / 1024)
41 #define TSF_TO_TU(_h, _l) \
42 ((((u32)(_h)) << 22) | (((u32)(_l)) >> 10))
44 extern struct ieee80211_ops ath9k_htc_ops;
45 extern int htc_modparam_nohwcrypt;
68 #define ATH9K_HTC_HDRSPACE sizeof(struct htc_frame_hdr)
69 #define ATH9K_HTC_AMPDU 1
70 #define ATH9K_HTC_NORMAL 2
72 #define ATH9K_HTC_TX_CTSONLY 0x1
73 #define ATH9K_HTC_TX_RTSCTS 0x2
74 #define ATH9K_HTC_TX_USE_MIN_RATE 0x100
81 u32 flags; /* ATH9K_HTC_TX_* */
97 struct tx_beacon_header {
103 struct ath9k_htc_target_hw {
109 u8 tx_chainmask_legacy;
114 struct ath9k_htc_cap_target {
120 u8 tx_chainmask_legacy;
125 struct ath9k_htc_target_vif {
127 u8 des_bssid[ETH_ALEN];
140 #define ATH_HTC_STA_AUTH 0x0001
141 #define ATH_HTC_STA_QOS 0x0002
142 #define ATH_HTC_STA_ERP 0x0004
143 #define ATH_HTC_STA_HT 0x0008
145 /* FIXME: UAPSD variables */
146 struct ath9k_htc_target_sta {
150 u8 macaddr[ETH_ALEN];
155 __be16 flags; /* ATH_HTC_STA_* */
159 struct ath9k_htc_target_hw *hw;
160 struct ath9k_htc_target_vif *vif;
168 struct ath9k_htc_target_aggr {
175 #define ATH_HTC_RATE_MAX 30
177 #define WLAN_RC_DS_FLAG 0x01
178 #define WLAN_RC_40_FLAG 0x02
179 #define WLAN_RC_SGI_FLAG 0x04
180 #define WLAN_RC_HT_FLAG 0x08
182 struct ath9k_htc_rateset {
184 u8 rs_rates[ATH_HTC_RATE_MAX];
187 struct ath9k_htc_rate {
188 struct ath9k_htc_rateset legacy_rates;
189 struct ath9k_htc_rateset ht_rates;
192 struct ath9k_htc_target_rate {
196 struct ath9k_htc_rate rates;
199 struct ath9k_htc_target_stats {
200 __be32 tx_shortretry;
203 __be32 ht_txunaggr_xretry;
204 __be32 ht_tx_xretries;
207 struct ath9k_htc_vif {
211 #define ATH9K_HTC_MAX_STA 8
212 #define ATH9K_HTC_MAX_TID 8
214 enum tid_aggr_state {
221 struct ath9k_htc_sta {
223 enum tid_aggr_state tid_state[ATH9K_HTC_MAX_TID];
226 struct ath9k_htc_aggr_work {
228 u8 sta_addr[ETH_ALEN];
229 struct ieee80211_hw *hw;
230 struct ieee80211_vif *vif;
231 enum ieee80211_ampdu_mlme_action action;
235 #define ATH9K_HTC_RXBUF 256
236 #define HTC_RX_FRAME_HEADER_SIZE 40
238 struct ath9k_htc_rxbuf {
241 struct ath_htc_rx_status rxstatus;
242 struct list_head list;
245 struct ath9k_htc_rx {
246 int last_rssi; /* FIXME: per-STA */
247 struct list_head rxbuf;
248 spinlock_t rxbuflock;
251 struct ath9k_htc_tx_ctl {
252 u8 type; /* ATH9K_HTC_* */
255 #ifdef CONFIG_ATH9K_HTC_DEBUGFS
257 #define TX_STAT_INC(c) (hif_dev->htc_handle->drv_priv->debug.tx_stats.c++)
258 #define RX_STAT_INC(c) (hif_dev->htc_handle->drv_priv->debug.rx_stats.c++)
260 #define TX_QSTAT_INC(q) (priv->debug.tx_stats.queue_stats[q]++)
262 struct ath_tx_stats {
268 u32 queue_stats[WME_NUM_AC];
271 struct ath_rx_stats {
278 struct dentry *debugfs_phy;
279 struct dentry *debugfs_tgt_stats;
280 struct dentry *debugfs_xmit;
281 struct dentry *debugfs_recv;
282 struct ath_tx_stats tx_stats;
283 struct ath_rx_stats rx_stats;
289 #define TX_STAT_INC(c) do { } while (0)
290 #define RX_STAT_INC(c) do { } while (0)
292 #define TX_QSTAT_INC(c) do { } while (0)
294 #endif /* CONFIG_ATH9K_HTC_DEBUGFS */
296 #define ATH_LED_PIN_DEF 1
297 #define ATH_LED_PIN_9287 8
298 #define ATH_LED_PIN_9271 15
299 #define ATH_LED_ON_DURATION_IDLE 350 /* in msecs */
300 #define ATH_LED_OFF_DURATION_IDLE 250 /* in msecs */
310 struct ath9k_htc_priv *priv;
311 struct led_classdev led_cdev;
312 enum ath_led_type led_type;
313 struct delayed_work brightness_work;
319 struct htc_beacon_config {
327 #define OP_INVALID BIT(0)
328 #define OP_SCANNING BIT(1)
329 #define OP_FULL_RESET BIT(2)
330 #define OP_LED_ASSOCIATED BIT(3)
331 #define OP_LED_ON BIT(4)
332 #define OP_PREAMBLE_SHORT BIT(5)
333 #define OP_PROTECT_ENABLE BIT(6)
334 #define OP_TXAGGR BIT(7)
335 #define OP_ASSOCIATED BIT(8)
336 #define OP_ENABLE_BEACON BIT(9)
337 #define OP_LED_DEINIT BIT(10)
338 #define OP_UNPLUGGED BIT(11)
340 struct ath9k_htc_priv {
342 struct ieee80211_hw *hw;
344 struct htc_target *htc;
347 enum htc_endpoint_id wmi_cmd_ep;
348 enum htc_endpoint_id beacon_ep;
349 enum htc_endpoint_id cab_ep;
350 enum htc_endpoint_id uapsd_ep;
351 enum htc_endpoint_id mgmt_ep;
352 enum htc_endpoint_id data_be_ep;
353 enum htc_endpoint_id data_bk_ep;
354 enum htc_endpoint_id data_vi_ep;
355 enum htc_endpoint_id data_vo_ep;
365 spinlock_t beacon_lock;
370 struct ieee80211_vif *vif;
371 struct htc_beacon_config cur_beacon_conf;
372 unsigned int rxfilter;
373 struct tasklet_struct wmi_tasklet;
374 struct tasklet_struct rx_tasklet;
375 struct ieee80211_supported_band sbands[IEEE80211_NUM_BANDS];
376 struct ath9k_htc_rx rx;
377 struct tasklet_struct tx_tasklet;
378 struct sk_buff_head tx_queue;
379 struct ath9k_htc_aggr_work aggr_work;
380 struct delayed_work ath9k_aggr_work;
381 struct delayed_work ath9k_ani_work;
382 struct work_struct ps_work;
384 struct mutex htc_pm_lock;
385 unsigned long ps_usecount;
389 struct ath_led radio_led;
390 struct ath_led assoc_led;
391 struct ath_led tx_led;
392 struct ath_led rx_led;
393 struct delayed_work ath9k_led_blink_work;
395 int led_off_duration;
401 int hwq_map[WME_NUM_AC];
403 #ifdef CONFIG_ATH9K_HTC_DEBUGFS
404 struct ath9k_debug debug;
409 static inline void ath_read_cachesize(struct ath_common *common, int *csz)
411 common->bus_ops->read_cachesize(common, csz);
414 void ath9k_htc_beaconq_config(struct ath9k_htc_priv *priv);
415 void ath9k_htc_beacon_config(struct ath9k_htc_priv *priv,
416 struct ieee80211_vif *vif);
417 void ath9k_htc_swba(struct ath9k_htc_priv *priv, u8 beacon_pending);
419 void ath9k_htc_rxep(void *priv, struct sk_buff *skb,
420 enum htc_endpoint_id ep_id);
421 void ath9k_htc_txep(void *priv, struct sk_buff *skb, enum htc_endpoint_id ep_id,
423 void ath9k_htc_beaconep(void *drv_priv, struct sk_buff *skb,
424 enum htc_endpoint_id ep_id, bool txok);
426 void ath9k_htc_station_work(struct work_struct *work);
427 void ath9k_htc_aggr_work(struct work_struct *work);
428 void ath9k_ani_work(struct work_struct *work);;
430 int ath9k_tx_init(struct ath9k_htc_priv *priv);
431 void ath9k_tx_tasklet(unsigned long data);
432 int ath9k_htc_tx_start(struct ath9k_htc_priv *priv, struct sk_buff *skb);
433 void ath9k_tx_cleanup(struct ath9k_htc_priv *priv);
434 bool ath9k_htc_txq_setup(struct ath9k_htc_priv *priv, int subtype);
435 int ath9k_htc_cabq_setup(struct ath9k_htc_priv *priv);
436 int get_hw_qnum(u16 queue, int *hwq_map);
437 int ath_htc_txq_update(struct ath9k_htc_priv *priv, int qnum,
438 struct ath9k_tx_queue_info *qinfo);
440 int ath9k_rx_init(struct ath9k_htc_priv *priv);
441 void ath9k_rx_cleanup(struct ath9k_htc_priv *priv);
442 void ath9k_host_rx_init(struct ath9k_htc_priv *priv);
443 void ath9k_rx_tasklet(unsigned long data);
444 u32 ath9k_htc_calcrxfilter(struct ath9k_htc_priv *priv);
446 void ath9k_htc_ps_wakeup(struct ath9k_htc_priv *priv);
447 void ath9k_htc_ps_restore(struct ath9k_htc_priv *priv);
448 void ath9k_ps_work(struct work_struct *work);
450 void ath9k_start_rfkill_poll(struct ath9k_htc_priv *priv);
451 void ath9k_init_leds(struct ath9k_htc_priv *priv);
452 void ath9k_deinit_leds(struct ath9k_htc_priv *priv);
454 int ath9k_htc_probe_device(struct htc_target *htc_handle, struct device *dev,
456 void ath9k_htc_disconnect_device(struct htc_target *htc_handle, bool hotunplug);
458 int ath9k_htc_resume(struct htc_target *htc_handle);
460 #ifdef CONFIG_ATH9K_HTC_DEBUGFS
461 int ath9k_htc_debug_create_root(void);
462 void ath9k_htc_debug_remove_root(void);
463 int ath9k_htc_init_debug(struct ath_hw *ah);
464 void ath9k_htc_exit_debug(struct ath_hw *ah);
466 static inline int ath9k_htc_debug_create_root(void) { return 0; };
467 static inline void ath9k_htc_debug_remove_root(void) {};
468 static inline int ath9k_htc_init_debug(struct ath_hw *ah) { return 0; };
469 static inline void ath9k_htc_exit_debug(struct ath_hw *ah) {};
470 #endif /* CONFIG_ATH9K_HTC_DEBUGFS */