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)); \
83 * enum buffer_type - Buffer type flags
85 * @BUF_AMPDU: This buffer is an ampdu, as part of an aggregate (during TX)
86 * @BUF_AGGR: Indicates whether the buffer can be aggregated
87 * (used in aggregation scheduling)
94 #define bf_isampdu(bf) (bf->bf_state.bf_type & BUF_AMPDU)
95 #define bf_isaggr(bf) (bf->bf_state.bf_type & BUF_AGGR)
97 #define ATH_TXSTATUS_RING_SIZE 512
99 #define DS2PHYS(_dd, _ds) \
100 ((_dd)->dd_desc_paddr + ((caddr_t)(_ds) - (caddr_t)(_dd)->dd_desc))
101 #define ATH_DESC_4KB_BOUND_CHECK(_daddr) ((((_daddr) & 0xFFF) > 0xF7F) ? 1 : 0)
102 #define ATH_DESC_4KB_BOUND_NUM_SKIPPED(_len) ((_len) / 4096)
106 dma_addr_t dd_desc_paddr;
110 int ath_descdma_setup(struct ath_softc *sc, struct ath_descdma *dd,
111 struct list_head *head, const char *name,
112 int nbuf, int ndesc, bool is_tx);
118 #define ATH_RXBUF 512
119 #define ATH_TXBUF 512
120 #define ATH_TXBUF_RESERVE 5
121 #define ATH_MAX_QDEPTH (ATH_TXBUF / 4 - ATH_TXBUF_RESERVE)
122 #define ATH_TXMAXTRY 13
124 #define TID_TO_WME_AC(_tid) \
125 ((((_tid) == 0) || ((_tid) == 3)) ? IEEE80211_AC_BE : \
126 (((_tid) == 1) || ((_tid) == 2)) ? IEEE80211_AC_BK : \
127 (((_tid) == 4) || ((_tid) == 5)) ? IEEE80211_AC_VI : \
130 #define ATH_AGGR_DELIM_SZ 4
131 #define ATH_AGGR_MINPLEN 256 /* in bytes, minimum packet length */
132 /* number of delimiters for encryption padding */
133 #define ATH_AGGR_ENCRYPTDELIM 10
134 /* minimum h/w qdepth to be sustained to maximize aggregation */
135 #define ATH_AGGR_MIN_QDEPTH 2
136 #define ATH_AMPDU_SUBFRAME_DEFAULT 32
138 #define IEEE80211_SEQ_SEQ_SHIFT 4
139 #define IEEE80211_SEQ_MAX 4096
140 #define IEEE80211_WEP_IVLEN 3
141 #define IEEE80211_WEP_KIDLEN 1
142 #define IEEE80211_WEP_CRCLEN 4
143 #define IEEE80211_MAX_MPDU_LEN (3840 + FCS_LEN + \
144 (IEEE80211_WEP_IVLEN + \
145 IEEE80211_WEP_KIDLEN + \
146 IEEE80211_WEP_CRCLEN))
148 /* return whether a bit at index _n in bitmap _bm is set
149 * _sz is the size of the bitmap */
150 #define ATH_BA_ISSET(_bm, _n) (((_n) < (WME_BA_BMP_SIZE)) && \
151 ((_bm)[(_n) >> 5] & (1 << ((_n) & 31))))
153 /* return block-ack bitmap index given sequence and starting sequence */
154 #define ATH_BA_INDEX(_st, _seq) (((_seq) - (_st)) & (IEEE80211_SEQ_MAX - 1))
156 /* return the seqno for _start + _offset */
157 #define ATH_BA_INDEX2SEQ(_seq, _offset) (((_seq) + (_offset)) & (IEEE80211_SEQ_MAX - 1))
159 /* returns delimiter padding required given the packet length */
160 #define ATH_AGGR_GET_NDELIM(_len) \
161 (((_len) >= ATH_AGGR_MINPLEN) ? 0 : \
162 DIV_ROUND_UP(ATH_AGGR_MINPLEN - (_len), ATH_AGGR_DELIM_SZ))
164 #define BAW_WITHIN(_start, _bawsz, _seqno) \
165 ((((_seqno) - (_start)) & 4095) < (_bawsz))
167 #define ATH_AN_2_TID(_an, _tidno) (&(_an)->tid[(_tidno)])
169 #define IS_CCK_RATE(rate) ((rate >= 0x18) && (rate <= 0x1e))
171 #define ATH_TX_COMPLETE_POLL_INT 1000
173 enum ATH_AGGR_STATUS {
179 #define ATH_TXFIFO_DEPTH 8
181 int mac80211_qnum; /* mac80211 queue number, -1 means not mac80211 Q */
182 u32 axq_qnum; /* ath9k hardware queue number */
184 struct list_head axq_q;
189 bool axq_tx_inprogress;
190 struct list_head axq_acq;
191 struct list_head txq_fifo[ATH_TXFIFO_DEPTH];
195 struct sk_buff_head complete_q;
201 struct list_head list;
202 struct list_head tid_q;
203 bool clear_ps_filter;
206 struct ath_frame_info {
209 enum ath9k_key_type keytype;
215 struct ath_buf_state {
220 unsigned long bfs_paprd_timestamp;
224 struct list_head list;
225 struct ath_buf *bf_lastbf; /* last buf of this unit (a frame or
227 struct ath_buf *bf_next; /* next subframe in the aggregate */
228 struct sk_buff *bf_mpdu; /* enclosing frame structure */
229 void *bf_desc; /* virtual addr of desc */
230 dma_addr_t bf_daddr; /* physical addr of desc */
231 dma_addr_t bf_buf_addr; /* physical addr of data buffer, for DMA */
233 struct ieee80211_tx_rate rates[4];
234 struct ath_buf_state bf_state;
238 struct list_head list;
239 struct sk_buff_head buf_q;
241 struct ath_atx_ac *ac;
242 unsigned long tx_buf[BITS_TO_LONGS(ATH_TID_MAX_BUFS)];
248 int baw_head; /* first un-acked tx buffer */
249 int baw_tail; /* next unused tx buffer slot */
256 struct ath_softc *sc;
257 struct ieee80211_sta *sta; /* station struct we're part of */
258 struct ieee80211_vif *vif; /* interface with which we're associated */
259 struct ath_atx_tid tid[IEEE80211_NUM_TIDS];
260 struct ath_atx_ac ac[IEEE80211_NUM_ACS];
268 #if defined(CONFIG_MAC80211_DEBUGFS) && defined(CONFIG_ATH9K_DEBUGFS)
269 struct dentry *node_stat;
273 struct ath_tx_control {
277 struct ieee80211_sta *sta;
280 #define ATH_TX_ERROR 0x01
283 * @txq_map: Index is mac80211 queue number. This is
284 * not necessarily the same as the hardware queue number
290 spinlock_t txbuflock;
291 struct list_head txbuf;
292 struct ath_txq txq[ATH9K_NUM_TX_QUEUES];
293 struct ath_descdma txdma;
294 struct ath_txq *txq_map[IEEE80211_NUM_ACS];
295 u32 txq_max_pending[IEEE80211_NUM_ACS];
296 u16 max_aggr_framelen[IEEE80211_NUM_ACS][4][32];
300 struct sk_buff_head rx_fifo;
310 unsigned int rxfilter;
311 struct list_head rxbuf;
312 struct ath_descdma rxdma;
313 struct ath_rx_edma rx_edma[ATH9K_RX_QUEUE_MAX];
315 struct ath_buf *buf_hold;
316 struct sk_buff *frag;
321 int ath_startrecv(struct ath_softc *sc);
322 bool ath_stoprecv(struct ath_softc *sc);
323 u32 ath_calcrxfilter(struct ath_softc *sc);
324 int ath_rx_init(struct ath_softc *sc, int nbufs);
325 void ath_rx_cleanup(struct ath_softc *sc);
326 int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp);
327 struct ath_txq *ath_txq_setup(struct ath_softc *sc, int qtype, int subtype);
328 void ath_txq_lock(struct ath_softc *sc, struct ath_txq *txq);
329 void ath_txq_unlock(struct ath_softc *sc, struct ath_txq *txq);
330 void ath_txq_unlock_complete(struct ath_softc *sc, struct ath_txq *txq);
331 void ath_tx_cleanupq(struct ath_softc *sc, struct ath_txq *txq);
332 bool ath_drain_all_txq(struct ath_softc *sc);
333 void ath_draintxq(struct ath_softc *sc, struct ath_txq *txq);
334 void ath_tx_node_init(struct ath_softc *sc, struct ath_node *an);
335 void ath_tx_node_cleanup(struct ath_softc *sc, struct ath_node *an);
336 void ath_txq_schedule(struct ath_softc *sc, struct ath_txq *txq);
337 int ath_tx_init(struct ath_softc *sc, int nbufs);
338 int ath_txq_update(struct ath_softc *sc, int qnum,
339 struct ath9k_tx_queue_info *q);
340 void ath_update_max_aggr_framelen(struct ath_softc *sc, int queue, int txop);
341 int ath_tx_start(struct ieee80211_hw *hw, struct sk_buff *skb,
342 struct ath_tx_control *txctl);
343 void ath_tx_tasklet(struct ath_softc *sc);
344 void ath_tx_edma_tasklet(struct ath_softc *sc);
345 int ath_tx_aggr_start(struct ath_softc *sc, struct ieee80211_sta *sta,
347 void ath_tx_aggr_stop(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid);
348 void ath_tx_aggr_resume(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid);
350 void ath_tx_aggr_wakeup(struct ath_softc *sc, struct ath_node *an);
351 void ath_tx_aggr_sleep(struct ieee80211_sta *sta, struct ath_softc *sc,
352 struct ath_node *an);
360 bool primary_sta_vif;
361 __le64 tsf_adjust; /* TSF adjustment for staggered beacons */
362 struct ath_buf *av_bcbuf;
365 /*******************/
366 /* Beacon Handling */
367 /*******************/
370 * Regardless of the number of beacons we stagger, (i.e. regardless of the
371 * number of BSSIDs) if a given beacon does not go out even after waiting this
372 * number of beacon intervals, the game's up.
374 #define BSTUCK_THRESH 9
376 #define ATH_DEFAULT_BINTVAL 100 /* TU */
377 #define ATH_DEFAULT_BMISS_LIMIT 10
378 #define IEEE80211_MS_TO_TU(x) (((x) * 1000) / 1024)
380 struct ath_beacon_config {
392 OK, /* no change needed */
393 UPDATE, /* update pending */
394 COMMIT /* beacon sent, commit change */
395 } updateslot; /* slot time update fsm */
400 struct ieee80211_vif *bslot[ATH_BCBUF];
403 struct ath9k_tx_queue_info beacon_qi;
404 struct ath_descdma bdma;
405 struct ath_txq *cabq;
406 struct list_head bbuf;
412 void ath9k_beacon_tasklet(unsigned long data);
413 bool ath9k_allow_beacon_config(struct ath_softc *sc, struct ieee80211_vif *vif);
414 void ath9k_beacon_config(struct ath_softc *sc, struct ieee80211_vif *vif,
416 void ath9k_beacon_assign_slot(struct ath_softc *sc, struct ieee80211_vif *vif);
417 void ath9k_beacon_remove_slot(struct ath_softc *sc, struct ieee80211_vif *vif);
418 void ath9k_set_tsfadjust(struct ath_softc *sc, struct ieee80211_vif *vif);
419 void ath9k_set_beacon(struct ath_softc *sc);
421 /*******************/
422 /* Link Monitoring */
423 /*******************/
425 #define ATH_STA_SHORT_CALINTERVAL 1000 /* 1 second */
426 #define ATH_AP_SHORT_CALINTERVAL 100 /* 100 ms */
427 #define ATH_ANI_POLLINTERVAL_OLD 100 /* 100 ms */
428 #define ATH_ANI_POLLINTERVAL_NEW 1000 /* 1000 ms */
429 #define ATH_LONG_CALINTERVAL_INT 1000 /* 1000 ms */
430 #define ATH_LONG_CALINTERVAL 30000 /* 30 seconds */
431 #define ATH_RESTART_CALINTERVAL 1200000 /* 20 minutes */
432 #define ATH_ANI_MAX_SKIP_COUNT 10
434 #define ATH_PAPRD_TIMEOUT 100 /* msecs */
435 #define ATH_PLL_WORK_INTERVAL 100
437 void ath_tx_complete_poll_work(struct work_struct *work);
438 void ath_reset_work(struct work_struct *work);
439 void ath_hw_check(struct work_struct *work);
440 void ath_hw_pll_work(struct work_struct *work);
441 void ath_rx_poll(unsigned long data);
442 void ath_start_rx_poll(struct ath_softc *sc, u8 nbeacon);
443 void ath_paprd_calibrate(struct work_struct *work);
444 void ath_ani_calibrate(unsigned long data);
445 void ath_start_ani(struct ath_softc *sc);
446 void ath_stop_ani(struct ath_softc *sc);
447 void ath_check_ani(struct ath_softc *sc);
448 int ath_update_survey_stats(struct ath_softc *sc);
449 void ath_update_survey_nf(struct ath_softc *sc, int channel);
450 void ath9k_queue_reset(struct ath_softc *sc, enum ath_reset_type type);
456 #define ATH_DUMP_BTCOEX(_s, _val) \
458 len += snprintf(buf + len, size - len, \
459 "%20s : %10d\n", _s, (_val)); \
463 BT_OP_PRIORITY_DETECTED,
468 bool hw_timer_enabled;
469 spinlock_t btcoex_lock;
470 struct timer_list period_timer; /* Timer for BT period */
472 unsigned long bt_priority_time;
473 unsigned long op_flags;
474 int bt_stomp_type; /* Types of BT stomping */
475 u32 btcoex_no_stomp; /* in usec */
476 u32 btcoex_period; /* in msec */
477 u32 btscan_no_stomp; /* in usec */
481 struct ath_gen_timer *no_stomp_timer; /* Timer for no BT stomping */
482 struct ath_mci_profile mci;
486 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
487 int ath9k_init_btcoex(struct ath_softc *sc);
488 void ath9k_deinit_btcoex(struct ath_softc *sc);
489 void ath9k_start_btcoex(struct ath_softc *sc);
490 void ath9k_stop_btcoex(struct ath_softc *sc);
491 void ath9k_btcoex_timer_resume(struct ath_softc *sc);
492 void ath9k_btcoex_timer_pause(struct ath_softc *sc);
493 void ath9k_btcoex_handle_interrupt(struct ath_softc *sc, u32 status);
494 u16 ath9k_btcoex_aggr_limit(struct ath_softc *sc, u32 max_4ms_framelen);
495 void ath9k_btcoex_stop_gen_timer(struct ath_softc *sc);
496 int ath9k_dump_btcoex(struct ath_softc *sc, u8 *buf, u32 size);
498 static inline int ath9k_init_btcoex(struct ath_softc *sc)
502 static inline void ath9k_deinit_btcoex(struct ath_softc *sc)
505 static inline void ath9k_start_btcoex(struct ath_softc *sc)
508 static inline void ath9k_stop_btcoex(struct ath_softc *sc)
511 static inline void ath9k_btcoex_handle_interrupt(struct ath_softc *sc,
515 static inline u16 ath9k_btcoex_aggr_limit(struct ath_softc *sc,
516 u32 max_4ms_framelen)
520 static inline void ath9k_btcoex_stop_gen_timer(struct ath_softc *sc)
523 static inline int ath9k_dump_btcoex(struct ath_softc *sc, u8 *buf, u32 size)
527 #endif /* CONFIG_ATH9K_BTCOEX_SUPPORT */
529 struct ath9k_wow_pattern {
530 u8 pattern_bytes[MAX_PATTERN_SIZE];
531 u8 mask_bytes[MAX_PATTERN_SIZE];
535 /********************/
537 /********************/
539 #define ATH_LED_PIN_DEF 1
540 #define ATH_LED_PIN_9287 8
541 #define ATH_LED_PIN_9300 10
542 #define ATH_LED_PIN_9485 6
543 #define ATH_LED_PIN_9462 4
545 #ifdef CONFIG_MAC80211_LEDS
546 void ath_init_leds(struct ath_softc *sc);
547 void ath_deinit_leds(struct ath_softc *sc);
548 void ath_fill_led_pin(struct ath_softc *sc);
550 static inline void ath_init_leds(struct ath_softc *sc)
554 static inline void ath_deinit_leds(struct ath_softc *sc)
557 static inline void ath_fill_led_pin(struct ath_softc *sc)
562 /*******************************/
563 /* Antenna diversity/combining */
564 /*******************************/
566 #define ATH_ANT_RX_CURRENT_SHIFT 4
567 #define ATH_ANT_RX_MAIN_SHIFT 2
568 #define ATH_ANT_RX_MASK 0x3
570 #define ATH_ANT_DIV_COMB_SHORT_SCAN_INTR 50
571 #define ATH_ANT_DIV_COMB_SHORT_SCAN_PKTCOUNT 0x100
572 #define ATH_ANT_DIV_COMB_MAX_PKTCOUNT 0x200
573 #define ATH_ANT_DIV_COMB_INIT_COUNT 95
574 #define ATH_ANT_DIV_COMB_MAX_COUNT 100
575 #define ATH_ANT_DIV_COMB_ALT_ANT_RATIO 30
576 #define ATH_ANT_DIV_COMB_ALT_ANT_RATIO2 20
578 #define ATH_ANT_DIV_COMB_LNA1_LNA2_SWITCH_DELTA -1
579 #define ATH_ANT_DIV_COMB_LNA1_DELTA_HI -4
580 #define ATH_ANT_DIV_COMB_LNA1_DELTA_MID -2
581 #define ATH_ANT_DIV_COMB_LNA1_DELTA_LOW 2
583 enum ath9k_ant_div_comb_lna_conf {
584 ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2,
585 ATH_ANT_DIV_COMB_LNA2,
586 ATH_ANT_DIV_COMB_LNA1,
587 ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2,
590 struct ath_ant_comb {
609 enum ath9k_ant_div_comb_lna_conf first_quick_scan_conf;
610 enum ath9k_ant_div_comb_lna_conf second_quick_scan_conf;
613 unsigned long scan_start_time;
616 void ath_ant_comb_scan(struct ath_softc *sc, struct ath_rx_status *rs);
617 void ath_ant_comb_update(struct ath_softc *sc);
619 /********************/
620 /* Main driver core */
621 /********************/
624 * Default cache line size, in bytes.
625 * Used when PCI device not fully initialized by bootrom/BIOS
627 #define DEFAULT_CACHELINE 32
628 #define ATH_REGCLASSIDS_MAX 10
629 #define ATH_CABQ_READY_TIME 80 /* % of beacon interval */
630 #define ATH_MAX_SW_RETRIES 30
631 #define ATH_CHAN_MAX 255
633 #define ATH_TXPOWER_MAX 100 /* .5 dBm units */
634 #define ATH_RATE_DUMMY_MARKER 0
644 /* Powersave flags */
645 #define PS_WAIT_FOR_BEACON BIT(0)
646 #define PS_WAIT_FOR_CAB BIT(1)
647 #define PS_WAIT_FOR_PSPOLL_DATA BIT(2)
648 #define PS_WAIT_FOR_TX_ACK BIT(3)
649 #define PS_BEACON_SYNC BIT(4)
650 #define PS_WAIT_FOR_ANI BIT(5)
652 struct ath_rate_table;
654 struct ath9k_vif_iter_data {
655 u8 hw_macaddr[ETH_ALEN]; /* address of the first vif */
656 u8 mask[ETH_ALEN]; /* bssid mask */
659 int naps; /* number of AP vifs */
660 int nmeshes; /* number of mesh vifs */
661 int nstations; /* number of station vifs */
662 int nwds; /* number of WDS vifs */
663 int nadhocs; /* number of adhoc vifs */
666 /* enum spectral_mode:
668 * @SPECTRAL_DISABLED: spectral mode is disabled
669 * @SPECTRAL_BACKGROUND: hardware sends samples when it is not busy with
671 * @SPECTRAL_MANUAL: spectral scan is enabled, triggering for samples
672 * is performed manually.
673 * @SPECTRAL_CHANSCAN: Like manual, but also triggered when changing channels
674 * during a channel scan.
677 SPECTRAL_DISABLED = 0,
684 struct ieee80211_hw *hw;
687 struct survey_info *cur_survey;
688 struct survey_info survey[ATH9K_NUM_CHANNELS];
690 struct tasklet_struct intr_tq;
691 struct tasklet_struct bcon_tasklet;
692 struct ath_hw *sc_ah;
695 spinlock_t sc_serial_rw;
696 spinlock_t sc_pm_lock;
697 spinlock_t sc_pcu_lock;
699 struct work_struct paprd_work;
700 struct work_struct hw_check_work;
701 struct work_struct hw_reset_work;
702 struct completion paprd_complete;
704 unsigned int hw_busy_count;
705 unsigned long sc_flags;
708 u16 ps_flags; /* PS_* */
714 unsigned long ps_usecount;
716 struct ath_config config;
719 struct ath_beacon beacon;
720 struct ieee80211_supported_band sbands[IEEE80211_NUM_BANDS];
722 #ifdef CONFIG_MAC80211_LEDS
725 struct led_classdev led_cdev;
728 struct ath9k_hw_cal_data caldata;
731 #ifdef CONFIG_ATH9K_DEBUGFS
732 struct ath9k_debug debug;
734 struct ath_beacon_config cur_beacon_conf;
735 struct delayed_work tx_complete_work;
736 struct delayed_work hw_pll_work;
737 struct timer_list rx_poll_timer;
739 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
740 struct ath_btcoex btcoex;
741 struct ath_mci_coex mci_coex;
742 struct work_struct mci_work;
745 struct ath_descdma txsdma;
747 struct ath_ant_comb ant_comb;
749 struct dfs_pattern_detector *dfs_detector;
751 /* relay(fs) channel for spectral scan */
752 struct rchan *rfs_chan_spec_scan;
753 enum spectral_mode spectral_mode;
754 struct ath_spec_scan spec_config;
757 #ifdef CONFIG_PM_SLEEP
758 atomic_t wow_got_bmiss_intr;
759 atomic_t wow_sleep_proc_intr; /* in the middle of WoW sleep ? */
760 u32 wow_intr_before_sleep;
764 #define SPECTRAL_SCAN_BITMASK 0x10
765 /* Radar info packet format, used for DFS and spectral formats. */
766 struct ath_radar_info {
772 /* The HT20 spectral data has 4 bytes of additional information at it's end.
774 * [7:0]: all bins {max_magnitude[1:0], bitmap_weight[5:0]}
775 * [7:0]: all bins max_magnitude[9:2]
776 * [7:0]: all bins {max_index[5:0], max_magnitude[11:10]}
777 * [3:0]: max_exp (shift amount to size max bin to 8-bit unsigned)
779 struct ath_ht20_mag_info {
784 #define SPECTRAL_HT20_NUM_BINS 56
786 /* WARNING: don't actually use this struct! MAC may vary the amount of
787 * data by -1/+2. This struct is for reference only.
789 struct ath_ht20_fft_packet {
790 u8 data[SPECTRAL_HT20_NUM_BINS];
791 struct ath_ht20_mag_info mag_info;
792 struct ath_radar_info radar_info;
795 #define SPECTRAL_HT20_TOTAL_DATA_LEN (sizeof(struct ath_ht20_fft_packet))
797 /* Dynamic 20/40 mode:
799 * [7:0]: lower bins {max_magnitude[1:0], bitmap_weight[5:0]}
800 * [7:0]: lower bins max_magnitude[9:2]
801 * [7:0]: lower bins {max_index[5:0], max_magnitude[11:10]}
802 * [7:0]: upper bins {max_magnitude[1:0], bitmap_weight[5:0]}
803 * [7:0]: upper bins max_magnitude[9:2]
804 * [7:0]: upper bins {max_index[5:0], max_magnitude[11:10]}
805 * [3:0]: max_exp (shift amount to size max bin to 8-bit unsigned)
807 struct ath_ht20_40_mag_info {
813 #define SPECTRAL_HT20_40_NUM_BINS 128
815 /* WARNING: don't actually use this struct! MAC may vary the amount of
816 * data. This struct is for reference only.
818 struct ath_ht20_40_fft_packet {
819 u8 data[SPECTRAL_HT20_40_NUM_BINS];
820 struct ath_ht20_40_mag_info mag_info;
821 struct ath_radar_info radar_info;
825 #define SPECTRAL_HT20_40_TOTAL_DATA_LEN (sizeof(struct ath_ht20_40_fft_packet))
827 /* grabs the max magnitude from the all/upper/lower bins */
828 static inline u16 spectral_max_magnitude(u8 *bins)
830 return (bins[0] & 0xc0) >> 6 |
831 (bins[1] & 0xff) << 2 |
832 (bins[2] & 0x03) << 10;
835 /* return the max magnitude from the all/upper/lower bins */
836 static inline u8 spectral_max_index(u8 *bins)
838 s8 m = (bins[2] & 0xfc) >> 2;
840 /* TODO: this still doesn't always report the right values ... */
849 /* return the bitmap weight from the all/upper/lower bins */
850 static inline u8 spectral_bitmap_weight(u8 *bins)
852 return bins[0] & 0x3f;
855 /* FFT sample format given to userspace via debugfs.
857 * Please keep the type/length at the front position and change
858 * other fields after adding another sample type
860 * TODO: this might need rework when switching to nl80211-based
863 enum ath_fft_sample_type {
864 ATH_FFT_SAMPLE_HT20 = 1,
867 struct fft_sample_tlv {
868 u8 type; /* see ath_fft_sample */
870 /* type dependent data follows */
873 struct fft_sample_ht20 {
874 struct fft_sample_tlv tlv;
882 __be16 max_magnitude;
888 u8 data[SPECTRAL_HT20_NUM_BINS];
891 void ath9k_tasklet(unsigned long data);
892 int ath_cabq_update(struct ath_softc *);
894 static inline void ath_read_cachesize(struct ath_common *common, int *csz)
896 common->bus_ops->read_cachesize(common, csz);
899 extern struct ieee80211_ops ath9k_ops;
900 extern int ath9k_modparam_nohwcrypt;
901 extern int led_blink;
902 extern bool is_ath9k_unloaded;
904 u8 ath9k_parse_mpdudensity(u8 mpdudensity);
905 irqreturn_t ath_isr(int irq, void *dev);
906 int ath9k_init_device(u16 devid, struct ath_softc *sc,
907 const struct ath_bus_ops *bus_ops);
908 void ath9k_deinit_device(struct ath_softc *sc);
909 void ath9k_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw);
910 void ath9k_reload_chainmask_settings(struct ath_softc *sc);
912 bool ath9k_uses_beacons(int type);
913 void ath9k_spectral_scan_trigger(struct ieee80211_hw *hw);
914 int ath9k_spectral_scan_config(struct ieee80211_hw *hw,
915 enum spectral_mode spectral_mode);
918 #ifdef CONFIG_ATH9K_PCI
919 int ath_pci_init(void);
920 void ath_pci_exit(void);
922 static inline int ath_pci_init(void) { return 0; };
923 static inline void ath_pci_exit(void) {};
926 #ifdef CONFIG_ATH9K_AHB
927 int ath_ahb_init(void);
928 void ath_ahb_exit(void);
930 static inline int ath_ahb_init(void) { return 0; };
931 static inline void ath_ahb_exit(void) {};
934 void ath9k_ps_wakeup(struct ath_softc *sc);
935 void ath9k_ps_restore(struct ath_softc *sc);
937 u8 ath_txchainmask_reduction(struct ath_softc *sc, u8 chainmask, u32 rate);
939 void ath_start_rfkill_poll(struct ath_softc *sc);
940 extern void ath9k_rfkill_poll_state(struct ieee80211_hw *hw);
941 void ath9k_calculate_iter_data(struct ieee80211_hw *hw,
942 struct ieee80211_vif *vif,
943 struct ath9k_vif_iter_data *iter_data);