2 * Copyright (c) 2008-2011 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/etherdevice.h>
21 #include <linux/device.h>
22 #include <linux/interrupt.h>
23 #include <linux/leds.h>
24 #include <linux/completion.h>
32 * Header for the ath9k.ko driver core *only* -- hw code nor any other driver
33 * should rely on this file or its contents.
38 /* Macro to expand scalars to 64-bit objects */
40 #define ito64(x) (sizeof(x) == 1) ? \
41 (((unsigned long long int)(x)) & (0xff)) : \
43 (((unsigned long long int)(x)) & 0xffff) : \
45 (((unsigned long long int)(x)) & 0xffffffff) : \
46 (unsigned long long int)(x))
48 /* increment with wrap-around */
49 #define INCR(_l, _sz) do { \
51 (_l) &= ((_sz) - 1); \
54 /* decrement with wrap-around */
55 #define DECR(_l, _sz) do { \
57 (_l) &= ((_sz) - 1); \
60 #define TSF_TO_TU(_h,_l) \
61 ((((u32)(_h)) << 22) | (((u32)(_l)) >> 10))
63 #define ATH_TXQ_SETUP(sc, i) ((sc)->tx.txqsetup & (1<<i))
70 /*************************/
71 /* Descriptor Management */
72 /*************************/
74 #define ATH_TXBUF_RESET(_bf) do { \
75 (_bf)->bf_stale = false; \
76 (_bf)->bf_lastbf = NULL; \
77 (_bf)->bf_next = NULL; \
78 memset(&((_bf)->bf_state), 0, \
79 sizeof(struct ath_buf_state)); \
82 #define ATH_RXBUF_RESET(_bf) do { \
83 (_bf)->bf_stale = false; \
87 * enum buffer_type - Buffer type flags
89 * @BUF_AMPDU: This buffer is an ampdu, as part of an aggregate (during TX)
90 * @BUF_AGGR: Indicates whether the buffer can be aggregated
91 * (used in aggregation scheduling)
98 #define bf_isampdu(bf) (bf->bf_state.bf_type & BUF_AMPDU)
99 #define bf_isaggr(bf) (bf->bf_state.bf_type & BUF_AGGR)
101 #define ATH_TXSTATUS_RING_SIZE 512
103 #define DS2PHYS(_dd, _ds) \
104 ((_dd)->dd_desc_paddr + ((caddr_t)(_ds) - (caddr_t)(_dd)->dd_desc))
105 #define ATH_DESC_4KB_BOUND_CHECK(_daddr) ((((_daddr) & 0xFFF) > 0xF7F) ? 1 : 0)
106 #define ATH_DESC_4KB_BOUND_NUM_SKIPPED(_len) ((_len) / 4096)
110 dma_addr_t dd_desc_paddr;
114 int ath_descdma_setup(struct ath_softc *sc, struct ath_descdma *dd,
115 struct list_head *head, const char *name,
116 int nbuf, int ndesc, bool is_tx);
122 #define ATH_RXBUF 512
123 #define ATH_TXBUF 512
124 #define ATH_TXBUF_RESERVE 5
125 #define ATH_MAX_QDEPTH (ATH_TXBUF / 4 - ATH_TXBUF_RESERVE)
126 #define ATH_TXMAXTRY 13
128 #define TID_TO_WME_AC(_tid) \
129 ((((_tid) == 0) || ((_tid) == 3)) ? IEEE80211_AC_BE : \
130 (((_tid) == 1) || ((_tid) == 2)) ? IEEE80211_AC_BK : \
131 (((_tid) == 4) || ((_tid) == 5)) ? IEEE80211_AC_VI : \
134 #define ATH_AGGR_DELIM_SZ 4
135 #define ATH_AGGR_MINPLEN 256 /* in bytes, minimum packet length */
136 /* number of delimiters for encryption padding */
137 #define ATH_AGGR_ENCRYPTDELIM 10
138 /* minimum h/w qdepth to be sustained to maximize aggregation */
139 #define ATH_AGGR_MIN_QDEPTH 2
140 #define ATH_AMPDU_SUBFRAME_DEFAULT 32
142 #define IEEE80211_SEQ_SEQ_SHIFT 4
143 #define IEEE80211_SEQ_MAX 4096
144 #define IEEE80211_WEP_IVLEN 3
145 #define IEEE80211_WEP_KIDLEN 1
146 #define IEEE80211_WEP_CRCLEN 4
147 #define IEEE80211_MAX_MPDU_LEN (3840 + FCS_LEN + \
148 (IEEE80211_WEP_IVLEN + \
149 IEEE80211_WEP_KIDLEN + \
150 IEEE80211_WEP_CRCLEN))
152 /* return whether a bit at index _n in bitmap _bm is set
153 * _sz is the size of the bitmap */
154 #define ATH_BA_ISSET(_bm, _n) (((_n) < (WME_BA_BMP_SIZE)) && \
155 ((_bm)[(_n) >> 5] & (1 << ((_n) & 31))))
157 /* return block-ack bitmap index given sequence and starting sequence */
158 #define ATH_BA_INDEX(_st, _seq) (((_seq) - (_st)) & (IEEE80211_SEQ_MAX - 1))
160 /* return the seqno for _start + _offset */
161 #define ATH_BA_INDEX2SEQ(_seq, _offset) (((_seq) + (_offset)) & (IEEE80211_SEQ_MAX - 1))
163 /* returns delimiter padding required given the packet length */
164 #define ATH_AGGR_GET_NDELIM(_len) \
165 (((_len) >= ATH_AGGR_MINPLEN) ? 0 : \
166 DIV_ROUND_UP(ATH_AGGR_MINPLEN - (_len), ATH_AGGR_DELIM_SZ))
168 #define BAW_WITHIN(_start, _bawsz, _seqno) \
169 ((((_seqno) - (_start)) & 4095) < (_bawsz))
171 #define ATH_AN_2_TID(_an, _tidno) (&(_an)->tid[(_tidno)])
173 #define IS_CCK_RATE(rate) ((rate >= 0x18) && (rate <= 0x1e))
175 #define ATH_TX_COMPLETE_POLL_INT 1000
177 enum ATH_AGGR_STATUS {
183 #define ATH_TXFIFO_DEPTH 8
185 int mac80211_qnum; /* mac80211 queue number, -1 means not mac80211 Q */
186 u32 axq_qnum; /* ath9k hardware queue number */
188 struct list_head axq_q;
193 bool axq_tx_inprogress;
194 struct list_head axq_acq;
195 struct list_head txq_fifo[ATH_TXFIFO_DEPTH];
199 struct sk_buff_head complete_q;
205 struct list_head list;
206 struct list_head tid_q;
207 bool clear_ps_filter;
210 struct ath_frame_info {
213 enum ath9k_key_type keytype;
219 struct ath_buf_state {
224 unsigned long bfs_paprd_timestamp;
228 struct list_head list;
229 struct ath_buf *bf_lastbf; /* last buf of this unit (a frame or
231 struct ath_buf *bf_next; /* next subframe in the aggregate */
232 struct sk_buff *bf_mpdu; /* enclosing frame structure */
233 void *bf_desc; /* virtual addr of desc */
234 dma_addr_t bf_daddr; /* physical addr of desc */
235 dma_addr_t bf_buf_addr; /* physical addr of data buffer, for DMA */
237 struct ieee80211_tx_rate rates[4];
238 struct ath_buf_state bf_state;
242 struct list_head list;
243 struct sk_buff_head buf_q;
245 struct ath_atx_ac *ac;
246 unsigned long tx_buf[BITS_TO_LONGS(ATH_TID_MAX_BUFS)];
252 int baw_head; /* first un-acked tx buffer */
253 int baw_tail; /* next unused tx buffer slot */
260 struct ath_softc *sc;
261 struct ieee80211_sta *sta; /* station struct we're part of */
262 struct ieee80211_vif *vif; /* interface with which we're associated */
263 struct ath_atx_tid tid[IEEE80211_NUM_TIDS];
264 struct ath_atx_ac ac[IEEE80211_NUM_ACS];
272 #if defined(CONFIG_MAC80211_DEBUGFS) && defined(CONFIG_ATH9K_DEBUGFS)
273 struct dentry *node_stat;
277 #define AGGR_CLEANUP BIT(1)
278 #define AGGR_ADDBA_COMPLETE BIT(2)
279 #define AGGR_ADDBA_PROGRESS BIT(3)
281 struct ath_tx_control {
285 struct ieee80211_sta *sta;
288 #define ATH_TX_ERROR 0x01
291 * @txq_map: Index is mac80211 queue number. This is
292 * not necessarily the same as the hardware queue number
298 spinlock_t txbuflock;
299 struct list_head txbuf;
300 struct ath_txq txq[ATH9K_NUM_TX_QUEUES];
301 struct ath_descdma txdma;
302 struct ath_txq *txq_map[IEEE80211_NUM_ACS];
303 u32 txq_max_pending[IEEE80211_NUM_ACS];
304 u16 max_aggr_framelen[IEEE80211_NUM_ACS][4][32];
308 struct sk_buff_head rx_fifo;
318 unsigned int rxfilter;
319 struct list_head rxbuf;
320 struct ath_descdma rxdma;
321 struct ath_rx_edma rx_edma[ATH9K_RX_QUEUE_MAX];
323 struct sk_buff *frag;
328 int ath_startrecv(struct ath_softc *sc);
329 bool ath_stoprecv(struct ath_softc *sc);
330 u32 ath_calcrxfilter(struct ath_softc *sc);
331 int ath_rx_init(struct ath_softc *sc, int nbufs);
332 void ath_rx_cleanup(struct ath_softc *sc);
333 int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp);
334 struct ath_txq *ath_txq_setup(struct ath_softc *sc, int qtype, int subtype);
335 void ath_txq_lock(struct ath_softc *sc, struct ath_txq *txq);
336 void ath_txq_unlock(struct ath_softc *sc, struct ath_txq *txq);
337 void ath_txq_unlock_complete(struct ath_softc *sc, struct ath_txq *txq);
338 void ath_tx_cleanupq(struct ath_softc *sc, struct ath_txq *txq);
339 bool ath_drain_all_txq(struct ath_softc *sc);
340 void ath_draintxq(struct ath_softc *sc, struct ath_txq *txq);
341 void ath_tx_node_init(struct ath_softc *sc, struct ath_node *an);
342 void ath_tx_node_cleanup(struct ath_softc *sc, struct ath_node *an);
343 void ath_txq_schedule(struct ath_softc *sc, struct ath_txq *txq);
344 int ath_tx_init(struct ath_softc *sc, int nbufs);
345 int ath_txq_update(struct ath_softc *sc, int qnum,
346 struct ath9k_tx_queue_info *q);
347 void ath_update_max_aggr_framelen(struct ath_softc *sc, int queue, int txop);
348 int ath_tx_start(struct ieee80211_hw *hw, struct sk_buff *skb,
349 struct ath_tx_control *txctl);
350 void ath_tx_tasklet(struct ath_softc *sc);
351 void ath_tx_edma_tasklet(struct ath_softc *sc);
352 int ath_tx_aggr_start(struct ath_softc *sc, struct ieee80211_sta *sta,
354 void ath_tx_aggr_stop(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid);
355 void ath_tx_aggr_resume(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid);
357 void ath_tx_aggr_wakeup(struct ath_softc *sc, struct ath_node *an);
358 void ath_tx_aggr_sleep(struct ieee80211_sta *sta, struct ath_softc *sc,
359 struct ath_node *an);
367 bool primary_sta_vif;
368 __le64 tsf_adjust; /* TSF adjustment for staggered beacons */
369 struct ath_buf *av_bcbuf;
372 /*******************/
373 /* Beacon Handling */
374 /*******************/
377 * Regardless of the number of beacons we stagger, (i.e. regardless of the
378 * number of BSSIDs) if a given beacon does not go out even after waiting this
379 * number of beacon intervals, the game's up.
381 #define BSTUCK_THRESH 9
383 #define ATH_DEFAULT_BINTVAL 100 /* TU */
384 #define ATH_DEFAULT_BMISS_LIMIT 10
385 #define IEEE80211_MS_TO_TU(x) (((x) * 1000) / 1024)
387 struct ath_beacon_config {
399 OK, /* no change needed */
400 UPDATE, /* update pending */
401 COMMIT /* beacon sent, commit change */
402 } updateslot; /* slot time update fsm */
407 struct ieee80211_vif *bslot[ATH_BCBUF];
410 struct ath9k_tx_queue_info beacon_qi;
411 struct ath_descdma bdma;
412 struct ath_txq *cabq;
413 struct list_head bbuf;
419 void ath9k_beacon_tasklet(unsigned long data);
420 bool ath9k_allow_beacon_config(struct ath_softc *sc, struct ieee80211_vif *vif);
421 void ath9k_beacon_config(struct ath_softc *sc, struct ieee80211_vif *vif,
423 void ath9k_beacon_assign_slot(struct ath_softc *sc, struct ieee80211_vif *vif);
424 void ath9k_beacon_remove_slot(struct ath_softc *sc, struct ieee80211_vif *vif);
425 void ath9k_set_tsfadjust(struct ath_softc *sc, struct ieee80211_vif *vif);
426 void ath9k_set_beacon(struct ath_softc *sc);
428 /*******************/
429 /* Link Monitoring */
430 /*******************/
432 #define ATH_STA_SHORT_CALINTERVAL 1000 /* 1 second */
433 #define ATH_AP_SHORT_CALINTERVAL 100 /* 100 ms */
434 #define ATH_ANI_POLLINTERVAL_OLD 100 /* 100 ms */
435 #define ATH_ANI_POLLINTERVAL_NEW 1000 /* 1000 ms */
436 #define ATH_LONG_CALINTERVAL_INT 1000 /* 1000 ms */
437 #define ATH_LONG_CALINTERVAL 30000 /* 30 seconds */
438 #define ATH_RESTART_CALINTERVAL 1200000 /* 20 minutes */
439 #define ATH_ANI_MAX_SKIP_COUNT 10
441 #define ATH_PAPRD_TIMEOUT 100 /* msecs */
442 #define ATH_PLL_WORK_INTERVAL 100
444 void ath_tx_complete_poll_work(struct work_struct *work);
445 void ath_reset_work(struct work_struct *work);
446 void ath_hw_check(struct work_struct *work);
447 void ath_hw_pll_work(struct work_struct *work);
448 void ath_rx_poll(unsigned long data);
449 void ath_start_rx_poll(struct ath_softc *sc, u8 nbeacon);
450 void ath_paprd_calibrate(struct work_struct *work);
451 void ath_ani_calibrate(unsigned long data);
452 void ath_start_ani(struct ath_softc *sc);
453 void ath_stop_ani(struct ath_softc *sc);
454 void ath_check_ani(struct ath_softc *sc);
455 int ath_update_survey_stats(struct ath_softc *sc);
456 void ath_update_survey_nf(struct ath_softc *sc, int channel);
457 void ath9k_queue_reset(struct ath_softc *sc, enum ath_reset_type type);
463 #define ATH_DUMP_BTCOEX(_s, _val) \
465 len += snprintf(buf + len, size - len, \
466 "%20s : %10d\n", _s, (_val)); \
470 BT_OP_PRIORITY_DETECTED,
475 bool hw_timer_enabled;
476 spinlock_t btcoex_lock;
477 struct timer_list period_timer; /* Timer for BT period */
479 unsigned long bt_priority_time;
480 unsigned long op_flags;
481 int bt_stomp_type; /* Types of BT stomping */
482 u32 btcoex_no_stomp; /* in usec */
483 u32 btcoex_period; /* in msec */
484 u32 btscan_no_stomp; /* in usec */
488 struct ath_gen_timer *no_stomp_timer; /* Timer for no BT stomping */
489 struct ath_mci_profile mci;
493 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
494 int ath9k_init_btcoex(struct ath_softc *sc);
495 void ath9k_deinit_btcoex(struct ath_softc *sc);
496 void ath9k_start_btcoex(struct ath_softc *sc);
497 void ath9k_stop_btcoex(struct ath_softc *sc);
498 void ath9k_btcoex_timer_resume(struct ath_softc *sc);
499 void ath9k_btcoex_timer_pause(struct ath_softc *sc);
500 void ath9k_btcoex_handle_interrupt(struct ath_softc *sc, u32 status);
501 u16 ath9k_btcoex_aggr_limit(struct ath_softc *sc, u32 max_4ms_framelen);
502 void ath9k_btcoex_stop_gen_timer(struct ath_softc *sc);
503 int ath9k_dump_btcoex(struct ath_softc *sc, u8 *buf, u32 size);
505 static inline int ath9k_init_btcoex(struct ath_softc *sc)
509 static inline void ath9k_deinit_btcoex(struct ath_softc *sc)
512 static inline void ath9k_start_btcoex(struct ath_softc *sc)
515 static inline void ath9k_stop_btcoex(struct ath_softc *sc)
518 static inline void ath9k_btcoex_handle_interrupt(struct ath_softc *sc,
522 static inline u16 ath9k_btcoex_aggr_limit(struct ath_softc *sc,
523 u32 max_4ms_framelen)
527 static inline void ath9k_btcoex_stop_gen_timer(struct ath_softc *sc)
530 static inline int ath9k_dump_btcoex(struct ath_softc *sc, u8 *buf, u32 size)
534 #endif /* CONFIG_ATH9K_BTCOEX_SUPPORT */
536 struct ath9k_wow_pattern {
537 u8 pattern_bytes[MAX_PATTERN_SIZE];
538 u8 mask_bytes[MAX_PATTERN_SIZE];
542 /********************/
544 /********************/
546 #define ATH_LED_PIN_DEF 1
547 #define ATH_LED_PIN_9287 8
548 #define ATH_LED_PIN_9300 10
549 #define ATH_LED_PIN_9485 6
550 #define ATH_LED_PIN_9462 4
552 #ifdef CONFIG_MAC80211_LEDS
553 void ath_init_leds(struct ath_softc *sc);
554 void ath_deinit_leds(struct ath_softc *sc);
555 void ath_fill_led_pin(struct ath_softc *sc);
557 static inline void ath_init_leds(struct ath_softc *sc)
561 static inline void ath_deinit_leds(struct ath_softc *sc)
564 static inline void ath_fill_led_pin(struct ath_softc *sc)
569 /*******************************/
570 /* Antenna diversity/combining */
571 /*******************************/
573 #define ATH_ANT_RX_CURRENT_SHIFT 4
574 #define ATH_ANT_RX_MAIN_SHIFT 2
575 #define ATH_ANT_RX_MASK 0x3
577 #define ATH_ANT_DIV_COMB_SHORT_SCAN_INTR 50
578 #define ATH_ANT_DIV_COMB_SHORT_SCAN_PKTCOUNT 0x100
579 #define ATH_ANT_DIV_COMB_MAX_PKTCOUNT 0x200
580 #define ATH_ANT_DIV_COMB_INIT_COUNT 95
581 #define ATH_ANT_DIV_COMB_MAX_COUNT 100
582 #define ATH_ANT_DIV_COMB_ALT_ANT_RATIO 30
583 #define ATH_ANT_DIV_COMB_ALT_ANT_RATIO2 20
585 #define ATH_ANT_DIV_COMB_LNA1_LNA2_SWITCH_DELTA -1
586 #define ATH_ANT_DIV_COMB_LNA1_DELTA_HI -4
587 #define ATH_ANT_DIV_COMB_LNA1_DELTA_MID -2
588 #define ATH_ANT_DIV_COMB_LNA1_DELTA_LOW 2
590 enum ath9k_ant_div_comb_lna_conf {
591 ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2,
592 ATH_ANT_DIV_COMB_LNA2,
593 ATH_ANT_DIV_COMB_LNA1,
594 ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2,
597 struct ath_ant_comb {
616 enum ath9k_ant_div_comb_lna_conf first_quick_scan_conf;
617 enum ath9k_ant_div_comb_lna_conf second_quick_scan_conf;
620 unsigned long scan_start_time;
623 void ath_ant_comb_scan(struct ath_softc *sc, struct ath_rx_status *rs);
624 void ath_ant_comb_update(struct ath_softc *sc);
626 /********************/
627 /* Main driver core */
628 /********************/
631 * Default cache line size, in bytes.
632 * Used when PCI device not fully initialized by bootrom/BIOS
634 #define DEFAULT_CACHELINE 32
635 #define ATH_REGCLASSIDS_MAX 10
636 #define ATH_CABQ_READY_TIME 80 /* % of beacon interval */
637 #define ATH_MAX_SW_RETRIES 30
638 #define ATH_CHAN_MAX 255
640 #define ATH_TXPOWER_MAX 100 /* .5 dBm units */
641 #define ATH_RATE_DUMMY_MARKER 0
651 /* Powersave flags */
652 #define PS_WAIT_FOR_BEACON BIT(0)
653 #define PS_WAIT_FOR_CAB BIT(1)
654 #define PS_WAIT_FOR_PSPOLL_DATA BIT(2)
655 #define PS_WAIT_FOR_TX_ACK BIT(3)
656 #define PS_BEACON_SYNC BIT(4)
657 #define PS_WAIT_FOR_ANI BIT(5)
659 struct ath_rate_table;
661 struct ath9k_vif_iter_data {
662 u8 hw_macaddr[ETH_ALEN]; /* address of the first vif */
663 u8 mask[ETH_ALEN]; /* bssid mask */
666 int naps; /* number of AP vifs */
667 int nmeshes; /* number of mesh vifs */
668 int nstations; /* number of station vifs */
669 int nwds; /* number of WDS vifs */
670 int nadhocs; /* number of adhoc vifs */
673 /* enum spectral_mode:
675 * @SPECTRAL_DISABLED: spectral mode is disabled
676 * @SPECTRAL_BACKGROUND: hardware sends samples when it is not busy with
678 * @SPECTRAL_MANUAL: spectral scan is enabled, triggering for samples
679 * is performed manually.
680 * @SPECTRAL_CHANSCAN: Like manual, but also triggered when changing channels
681 * during a channel scan.
684 SPECTRAL_DISABLED = 0,
691 struct ieee80211_hw *hw;
694 struct survey_info *cur_survey;
695 struct survey_info survey[ATH9K_NUM_CHANNELS];
697 struct tasklet_struct intr_tq;
698 struct tasklet_struct bcon_tasklet;
699 struct ath_hw *sc_ah;
702 spinlock_t sc_serial_rw;
703 spinlock_t sc_pm_lock;
704 spinlock_t sc_pcu_lock;
706 struct work_struct paprd_work;
707 struct work_struct hw_check_work;
708 struct work_struct hw_reset_work;
709 struct completion paprd_complete;
711 unsigned int hw_busy_count;
712 unsigned long sc_flags;
715 u16 ps_flags; /* PS_* */
721 unsigned long ps_usecount;
723 struct ath_config config;
726 struct ath_beacon beacon;
727 struct ieee80211_supported_band sbands[IEEE80211_NUM_BANDS];
729 #ifdef CONFIG_MAC80211_LEDS
732 struct led_classdev led_cdev;
735 struct ath9k_hw_cal_data caldata;
738 #ifdef CONFIG_ATH9K_DEBUGFS
739 struct ath9k_debug debug;
741 struct ath_beacon_config cur_beacon_conf;
742 struct delayed_work tx_complete_work;
743 struct delayed_work hw_pll_work;
744 struct timer_list rx_poll_timer;
746 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
747 struct ath_btcoex btcoex;
748 struct ath_mci_coex mci_coex;
749 struct work_struct mci_work;
752 struct ath_descdma txsdma;
754 struct ath_ant_comb ant_comb;
756 struct dfs_pattern_detector *dfs_detector;
758 /* relay(fs) channel for spectral scan */
759 struct rchan *rfs_chan_spec_scan;
760 enum spectral_mode spectral_mode;
761 struct ath_spec_scan spec_config;
764 #ifdef CONFIG_PM_SLEEP
765 atomic_t wow_got_bmiss_intr;
766 atomic_t wow_sleep_proc_intr; /* in the middle of WoW sleep ? */
767 u32 wow_intr_before_sleep;
771 #define SPECTRAL_SCAN_BITMASK 0x10
772 /* Radar info packet format, used for DFS and spectral formats. */
773 struct ath_radar_info {
779 /* The HT20 spectral data has 4 bytes of additional information at it's end.
781 * [7:0]: all bins {max_magnitude[1:0], bitmap_weight[5:0]}
782 * [7:0]: all bins max_magnitude[9:2]
783 * [7:0]: all bins {max_index[5:0], max_magnitude[11:10]}
784 * [3:0]: max_exp (shift amount to size max bin to 8-bit unsigned)
786 struct ath_ht20_mag_info {
791 #define SPECTRAL_HT20_NUM_BINS 56
793 /* WARNING: don't actually use this struct! MAC may vary the amount of
794 * data by -1/+2. This struct is for reference only.
796 struct ath_ht20_fft_packet {
797 u8 data[SPECTRAL_HT20_NUM_BINS];
798 struct ath_ht20_mag_info mag_info;
799 struct ath_radar_info radar_info;
802 #define SPECTRAL_HT20_TOTAL_DATA_LEN (sizeof(struct ath_ht20_fft_packet))
804 /* Dynamic 20/40 mode:
806 * [7:0]: lower bins {max_magnitude[1:0], bitmap_weight[5:0]}
807 * [7:0]: lower bins max_magnitude[9:2]
808 * [7:0]: lower bins {max_index[5:0], max_magnitude[11:10]}
809 * [7:0]: upper bins {max_magnitude[1:0], bitmap_weight[5:0]}
810 * [7:0]: upper bins max_magnitude[9:2]
811 * [7:0]: upper bins {max_index[5:0], max_magnitude[11:10]}
812 * [3:0]: max_exp (shift amount to size max bin to 8-bit unsigned)
814 struct ath_ht20_40_mag_info {
820 #define SPECTRAL_HT20_40_NUM_BINS 128
822 /* WARNING: don't actually use this struct! MAC may vary the amount of
823 * data. This struct is for reference only.
825 struct ath_ht20_40_fft_packet {
826 u8 data[SPECTRAL_HT20_40_NUM_BINS];
827 struct ath_ht20_40_mag_info mag_info;
828 struct ath_radar_info radar_info;
832 #define SPECTRAL_HT20_40_TOTAL_DATA_LEN (sizeof(struct ath_ht20_40_fft_packet))
834 /* grabs the max magnitude from the all/upper/lower bins */
835 static inline u16 spectral_max_magnitude(u8 *bins)
837 return (bins[0] & 0xc0) >> 6 |
838 (bins[1] & 0xff) << 2 |
839 (bins[2] & 0x03) << 10;
842 /* return the max magnitude from the all/upper/lower bins */
843 static inline u8 spectral_max_index(u8 *bins)
845 s8 m = (bins[2] & 0xfc) >> 2;
847 /* TODO: this still doesn't always report the right values ... */
856 /* return the bitmap weight from the all/upper/lower bins */
857 static inline u8 spectral_bitmap_weight(u8 *bins)
859 return bins[0] & 0x3f;
862 /* FFT sample format given to userspace via debugfs.
864 * Please keep the type/length at the front position and change
865 * other fields after adding another sample type
867 * TODO: this might need rework when switching to nl80211-based
870 enum ath_fft_sample_type {
871 ATH_FFT_SAMPLE_HT20 = 1,
874 struct fft_sample_tlv {
875 u8 type; /* see ath_fft_sample */
877 /* type dependent data follows */
880 struct fft_sample_ht20 {
881 struct fft_sample_tlv tlv;
889 __be16 max_magnitude;
895 u8 data[SPECTRAL_HT20_NUM_BINS];
898 void ath9k_tasklet(unsigned long data);
899 int ath_cabq_update(struct ath_softc *);
901 static inline void ath_read_cachesize(struct ath_common *common, int *csz)
903 common->bus_ops->read_cachesize(common, csz);
906 extern struct ieee80211_ops ath9k_ops;
907 extern int ath9k_modparam_nohwcrypt;
908 extern int led_blink;
909 extern bool is_ath9k_unloaded;
911 u8 ath9k_parse_mpdudensity(u8 mpdudensity);
912 irqreturn_t ath_isr(int irq, void *dev);
913 int ath9k_init_device(u16 devid, struct ath_softc *sc,
914 const struct ath_bus_ops *bus_ops);
915 void ath9k_deinit_device(struct ath_softc *sc);
916 void ath9k_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw);
917 void ath9k_reload_chainmask_settings(struct ath_softc *sc);
919 bool ath9k_uses_beacons(int type);
920 void ath9k_spectral_scan_trigger(struct ieee80211_hw *hw);
921 int ath9k_spectral_scan_config(struct ieee80211_hw *hw,
922 enum spectral_mode spectral_mode);
925 #ifdef CONFIG_ATH9K_PCI
926 int ath_pci_init(void);
927 void ath_pci_exit(void);
929 static inline int ath_pci_init(void) { return 0; };
930 static inline void ath_pci_exit(void) {};
933 #ifdef CONFIG_ATH9K_AHB
934 int ath_ahb_init(void);
935 void ath_ahb_exit(void);
937 static inline int ath_ahb_init(void) { return 0; };
938 static inline void ath_ahb_exit(void) {};
941 void ath9k_ps_wakeup(struct ath_softc *sc);
942 void ath9k_ps_restore(struct ath_softc *sc);
944 u8 ath_txchainmask_reduction(struct ath_softc *sc, u8 chainmask, u32 rate);
946 void ath_start_rfkill_poll(struct ath_softc *sc);
947 extern void ath9k_rfkill_poll_state(struct ieee80211_hw *hw);
948 void ath9k_calculate_iter_data(struct ieee80211_hw *hw,
949 struct ieee80211_vif *vif,
950 struct ath9k_vif_iter_data *iter_data);