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 ath_buf_state bf_state;
241 struct list_head list;
242 struct sk_buff_head buf_q;
244 struct ath_atx_ac *ac;
245 unsigned long tx_buf[BITS_TO_LONGS(ATH_TID_MAX_BUFS)];
251 int baw_head; /* first un-acked tx buffer */
252 int baw_tail; /* next unused tx buffer slot */
259 struct ath_softc *sc;
260 struct ieee80211_sta *sta; /* station struct we're part of */
261 struct ieee80211_vif *vif; /* interface with which we're associated */
262 struct ath_atx_tid tid[IEEE80211_NUM_TIDS];
263 struct ath_atx_ac ac[IEEE80211_NUM_ACS];
271 #if defined(CONFIG_MAC80211_DEBUGFS) && defined(CONFIG_ATH9K_DEBUGFS)
272 struct dentry *node_stat;
276 #define AGGR_CLEANUP BIT(1)
277 #define AGGR_ADDBA_COMPLETE BIT(2)
278 #define AGGR_ADDBA_PROGRESS BIT(3)
280 struct ath_tx_control {
284 struct ieee80211_sta *sta;
287 #define ATH_TX_ERROR 0x01
290 * @txq_map: Index is mac80211 queue number. This is
291 * not necessarily the same as the hardware queue number
297 spinlock_t txbuflock;
298 struct list_head txbuf;
299 struct ath_txq txq[ATH9K_NUM_TX_QUEUES];
300 struct ath_descdma txdma;
301 struct ath_txq *txq_map[IEEE80211_NUM_ACS];
302 u32 txq_max_pending[IEEE80211_NUM_ACS];
303 u16 max_aggr_framelen[IEEE80211_NUM_ACS][4][32];
307 struct sk_buff_head rx_fifo;
316 unsigned int rxfilter;
317 struct list_head rxbuf;
318 struct ath_descdma rxdma;
319 struct ath_rx_edma rx_edma[ATH9K_RX_QUEUE_MAX];
321 struct sk_buff *frag;
324 int ath_startrecv(struct ath_softc *sc);
325 bool ath_stoprecv(struct ath_softc *sc);
326 u32 ath_calcrxfilter(struct ath_softc *sc);
327 int ath_rx_init(struct ath_softc *sc, int nbufs);
328 void ath_rx_cleanup(struct ath_softc *sc);
329 int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp);
330 struct ath_txq *ath_txq_setup(struct ath_softc *sc, int qtype, int subtype);
331 void ath_txq_lock(struct ath_softc *sc, struct ath_txq *txq);
332 void ath_txq_unlock(struct ath_softc *sc, struct ath_txq *txq);
333 void ath_txq_unlock_complete(struct ath_softc *sc, struct ath_txq *txq);
334 void ath_tx_cleanupq(struct ath_softc *sc, struct ath_txq *txq);
335 bool ath_drain_all_txq(struct ath_softc *sc);
336 void ath_draintxq(struct ath_softc *sc, struct ath_txq *txq);
337 void ath_tx_node_init(struct ath_softc *sc, struct ath_node *an);
338 void ath_tx_node_cleanup(struct ath_softc *sc, struct ath_node *an);
339 void ath_txq_schedule(struct ath_softc *sc, struct ath_txq *txq);
340 int ath_tx_init(struct ath_softc *sc, int nbufs);
341 int ath_txq_update(struct ath_softc *sc, int qnum,
342 struct ath9k_tx_queue_info *q);
343 void ath_update_max_aggr_framelen(struct ath_softc *sc, int queue, int txop);
344 int ath_tx_start(struct ieee80211_hw *hw, struct sk_buff *skb,
345 struct ath_tx_control *txctl);
346 void ath_tx_tasklet(struct ath_softc *sc);
347 void ath_tx_edma_tasklet(struct ath_softc *sc);
348 int ath_tx_aggr_start(struct ath_softc *sc, struct ieee80211_sta *sta,
350 void ath_tx_aggr_stop(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid);
351 void ath_tx_aggr_resume(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid);
353 void ath_tx_aggr_wakeup(struct ath_softc *sc, struct ath_node *an);
354 void ath_tx_aggr_sleep(struct ieee80211_sta *sta, struct ath_softc *sc,
355 struct ath_node *an);
363 bool primary_sta_vif;
364 __le64 tsf_adjust; /* TSF adjustment for staggered beacons */
365 struct ath_buf *av_bcbuf;
368 /*******************/
369 /* Beacon Handling */
370 /*******************/
373 * Regardless of the number of beacons we stagger, (i.e. regardless of the
374 * number of BSSIDs) if a given beacon does not go out even after waiting this
375 * number of beacon intervals, the game's up.
377 #define BSTUCK_THRESH 9
379 #define ATH_DEFAULT_BINTVAL 100 /* TU */
380 #define ATH_DEFAULT_BMISS_LIMIT 10
381 #define IEEE80211_MS_TO_TU(x) (((x) * 1000) / 1024)
383 struct ath_beacon_config {
394 OK, /* no change needed */
395 UPDATE, /* update pending */
396 COMMIT /* beacon sent, commit change */
397 } updateslot; /* slot time update fsm */
402 struct ieee80211_vif *bslot[ATH_BCBUF];
405 struct ath9k_tx_queue_info beacon_qi;
406 struct ath_descdma bdma;
407 struct ath_txq *cabq;
408 struct list_head bbuf;
414 void ath9k_beacon_tasklet(unsigned long data);
415 bool ath9k_allow_beacon_config(struct ath_softc *sc, struct ieee80211_vif *vif);
416 void ath9k_beacon_config(struct ath_softc *sc, struct ieee80211_vif *vif,
418 void ath9k_beacon_assign_slot(struct ath_softc *sc, struct ieee80211_vif *vif);
419 void ath9k_beacon_remove_slot(struct ath_softc *sc, struct ieee80211_vif *vif);
420 void ath9k_set_tsfadjust(struct ath_softc *sc, struct ieee80211_vif *vif);
421 void ath9k_set_beacon(struct ath_softc *sc);
423 /*******************/
424 /* Link Monitoring */
425 /*******************/
427 #define ATH_STA_SHORT_CALINTERVAL 1000 /* 1 second */
428 #define ATH_AP_SHORT_CALINTERVAL 100 /* 100 ms */
429 #define ATH_ANI_POLLINTERVAL_OLD 100 /* 100 ms */
430 #define ATH_ANI_POLLINTERVAL_NEW 1000 /* 1000 ms */
431 #define ATH_LONG_CALINTERVAL_INT 1000 /* 1000 ms */
432 #define ATH_LONG_CALINTERVAL 30000 /* 30 seconds */
433 #define ATH_RESTART_CALINTERVAL 1200000 /* 20 minutes */
434 #define ATH_ANI_MAX_SKIP_COUNT 10
436 #define ATH_PAPRD_TIMEOUT 100 /* msecs */
437 #define ATH_PLL_WORK_INTERVAL 100
439 void ath_tx_complete_poll_work(struct work_struct *work);
440 void ath_reset_work(struct work_struct *work);
441 void ath_hw_check(struct work_struct *work);
442 void ath_hw_pll_work(struct work_struct *work);
443 void ath_rx_poll(unsigned long data);
444 void ath_start_rx_poll(struct ath_softc *sc, u8 nbeacon);
445 void ath_paprd_calibrate(struct work_struct *work);
446 void ath_ani_calibrate(unsigned long data);
447 void ath_start_ani(struct ath_softc *sc);
448 void ath_stop_ani(struct ath_softc *sc);
449 void ath_check_ani(struct ath_softc *sc);
450 int ath_update_survey_stats(struct ath_softc *sc);
451 void ath_update_survey_nf(struct ath_softc *sc, int channel);
452 void ath9k_queue_reset(struct ath_softc *sc, enum ath_reset_type type);
458 #define ATH_DUMP_BTCOEX(_s, _val) \
460 len += snprintf(buf + len, size - len, \
461 "%20s : %10d\n", _s, (_val)); \
465 BT_OP_PRIORITY_DETECTED,
470 bool hw_timer_enabled;
471 spinlock_t btcoex_lock;
472 struct timer_list period_timer; /* Timer for BT period */
474 unsigned long bt_priority_time;
475 unsigned long op_flags;
476 int bt_stomp_type; /* Types of BT stomping */
477 u32 btcoex_no_stomp; /* in usec */
478 u32 btcoex_period; /* in msec */
479 u32 btscan_no_stomp; /* in usec */
483 struct ath_gen_timer *no_stomp_timer; /* Timer for no BT stomping */
484 struct ath_mci_profile mci;
488 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
489 int ath9k_init_btcoex(struct ath_softc *sc);
490 void ath9k_deinit_btcoex(struct ath_softc *sc);
491 void ath9k_start_btcoex(struct ath_softc *sc);
492 void ath9k_stop_btcoex(struct ath_softc *sc);
493 void ath9k_btcoex_timer_resume(struct ath_softc *sc);
494 void ath9k_btcoex_timer_pause(struct ath_softc *sc);
495 void ath9k_btcoex_handle_interrupt(struct ath_softc *sc, u32 status);
496 u16 ath9k_btcoex_aggr_limit(struct ath_softc *sc, u32 max_4ms_framelen);
497 void ath9k_btcoex_stop_gen_timer(struct ath_softc *sc);
498 int ath9k_dump_btcoex(struct ath_softc *sc, u8 *buf, u32 size);
500 static inline int ath9k_init_btcoex(struct ath_softc *sc)
504 static inline void ath9k_deinit_btcoex(struct ath_softc *sc)
507 static inline void ath9k_start_btcoex(struct ath_softc *sc)
510 static inline void ath9k_stop_btcoex(struct ath_softc *sc)
513 static inline void ath9k_btcoex_handle_interrupt(struct ath_softc *sc,
517 static inline u16 ath9k_btcoex_aggr_limit(struct ath_softc *sc,
518 u32 max_4ms_framelen)
522 static inline void ath9k_btcoex_stop_gen_timer(struct ath_softc *sc)
525 static inline int ath9k_dump_btcoex(struct ath_softc *sc, u8 *buf, u32 size)
529 #endif /* CONFIG_ATH9K_BTCOEX_SUPPORT */
531 struct ath9k_wow_pattern {
532 u8 pattern_bytes[MAX_PATTERN_SIZE];
533 u8 mask_bytes[MAX_PATTERN_SIZE];
537 /********************/
539 /********************/
541 #define ATH_LED_PIN_DEF 1
542 #define ATH_LED_PIN_9287 8
543 #define ATH_LED_PIN_9300 10
544 #define ATH_LED_PIN_9485 6
545 #define ATH_LED_PIN_9462 4
547 #ifdef CONFIG_MAC80211_LEDS
548 void ath_init_leds(struct ath_softc *sc);
549 void ath_deinit_leds(struct ath_softc *sc);
550 void ath_fill_led_pin(struct ath_softc *sc);
552 static inline void ath_init_leds(struct ath_softc *sc)
556 static inline void ath_deinit_leds(struct ath_softc *sc)
559 static inline void ath_fill_led_pin(struct ath_softc *sc)
564 /*******************************/
565 /* Antenna diversity/combining */
566 /*******************************/
568 #define ATH_ANT_RX_CURRENT_SHIFT 4
569 #define ATH_ANT_RX_MAIN_SHIFT 2
570 #define ATH_ANT_RX_MASK 0x3
572 #define ATH_ANT_DIV_COMB_SHORT_SCAN_INTR 50
573 #define ATH_ANT_DIV_COMB_SHORT_SCAN_PKTCOUNT 0x100
574 #define ATH_ANT_DIV_COMB_MAX_PKTCOUNT 0x200
575 #define ATH_ANT_DIV_COMB_INIT_COUNT 95
576 #define ATH_ANT_DIV_COMB_MAX_COUNT 100
577 #define ATH_ANT_DIV_COMB_ALT_ANT_RATIO 30
578 #define ATH_ANT_DIV_COMB_ALT_ANT_RATIO2 20
580 #define ATH_ANT_DIV_COMB_LNA1_LNA2_SWITCH_DELTA -1
581 #define ATH_ANT_DIV_COMB_LNA1_DELTA_HI -4
582 #define ATH_ANT_DIV_COMB_LNA1_DELTA_MID -2
583 #define ATH_ANT_DIV_COMB_LNA1_DELTA_LOW 2
585 enum ath9k_ant_div_comb_lna_conf {
586 ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2,
587 ATH_ANT_DIV_COMB_LNA2,
588 ATH_ANT_DIV_COMB_LNA1,
589 ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2,
592 struct ath_ant_comb {
611 enum ath9k_ant_div_comb_lna_conf first_quick_scan_conf;
612 enum ath9k_ant_div_comb_lna_conf second_quick_scan_conf;
615 unsigned long scan_start_time;
618 void ath_ant_comb_scan(struct ath_softc *sc, struct ath_rx_status *rs);
619 void ath_ant_comb_update(struct ath_softc *sc);
621 /********************/
622 /* Main driver core */
623 /********************/
626 * Default cache line size, in bytes.
627 * Used when PCI device not fully initialized by bootrom/BIOS
629 #define DEFAULT_CACHELINE 32
630 #define ATH_REGCLASSIDS_MAX 10
631 #define ATH_CABQ_READY_TIME 80 /* % of beacon interval */
632 #define ATH_MAX_SW_RETRIES 30
633 #define ATH_CHAN_MAX 255
635 #define ATH_TXPOWER_MAX 100 /* .5 dBm units */
636 #define ATH_RATE_DUMMY_MARKER 0
646 /* Powersave flags */
647 #define PS_WAIT_FOR_BEACON BIT(0)
648 #define PS_WAIT_FOR_CAB BIT(1)
649 #define PS_WAIT_FOR_PSPOLL_DATA BIT(2)
650 #define PS_WAIT_FOR_TX_ACK BIT(3)
651 #define PS_BEACON_SYNC BIT(4)
652 #define PS_WAIT_FOR_ANI BIT(5)
654 struct ath_rate_table;
656 struct ath9k_vif_iter_data {
657 const u8 *hw_macaddr; /* phy's hardware address, set
658 * before starting iteration for
661 u8 mask[ETH_ALEN]; /* bssid mask */
662 int naps; /* number of AP vifs */
663 int nmeshes; /* number of mesh vifs */
664 int nstations; /* number of station vifs */
665 int nwds; /* number of WDS vifs */
666 int nadhocs; /* number of adhoc vifs */
669 /* enum spectral_mode:
671 * @SPECTRAL_DISABLED: spectral mode is disabled
672 * @SPECTRAL_BACKGROUND: hardware sends samples when it is not busy with
674 * @SPECTRAL_MANUAL: spectral scan is enabled, triggering for samples
675 * is performed manually.
676 * @SPECTRAL_CHANSCAN: Like manual, but also triggered when changing channels
677 * during a channel scan.
680 SPECTRAL_DISABLED = 0,
687 struct ieee80211_hw *hw;
690 struct survey_info *cur_survey;
691 struct survey_info survey[ATH9K_NUM_CHANNELS];
693 struct tasklet_struct intr_tq;
694 struct tasklet_struct bcon_tasklet;
695 struct ath_hw *sc_ah;
698 spinlock_t sc_serial_rw;
699 spinlock_t sc_pm_lock;
700 spinlock_t sc_pcu_lock;
702 struct work_struct paprd_work;
703 struct work_struct hw_check_work;
704 struct work_struct hw_reset_work;
705 struct completion paprd_complete;
707 unsigned int hw_busy_count;
708 unsigned long sc_flags;
711 u16 ps_flags; /* PS_* */
717 unsigned long ps_usecount;
719 struct ath_config config;
722 struct ath_beacon beacon;
723 struct ieee80211_supported_band sbands[IEEE80211_NUM_BANDS];
725 #ifdef CONFIG_MAC80211_LEDS
728 struct led_classdev led_cdev;
731 struct ath9k_hw_cal_data caldata;
734 #ifdef CONFIG_ATH9K_DEBUGFS
735 struct ath9k_debug debug;
737 struct ath_beacon_config cur_beacon_conf;
738 struct delayed_work tx_complete_work;
739 struct delayed_work hw_pll_work;
740 struct timer_list rx_poll_timer;
742 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
743 struct ath_btcoex btcoex;
744 struct ath_mci_coex mci_coex;
745 struct work_struct mci_work;
748 struct ath_descdma txsdma;
750 struct ath_ant_comb ant_comb;
752 struct dfs_pattern_detector *dfs_detector;
754 /* relay(fs) channel for spectral scan */
755 struct rchan *rfs_chan_spec_scan;
756 enum spectral_mode spectral_mode;
759 #ifdef CONFIG_PM_SLEEP
760 atomic_t wow_got_bmiss_intr;
761 atomic_t wow_sleep_proc_intr; /* in the middle of WoW sleep ? */
762 u32 wow_intr_before_sleep;
766 #define SPECTRAL_SCAN_BITMASK 0x10
767 /* Radar info packet format, used for DFS and spectral formats. */
768 struct ath_radar_info {
774 /* The HT20 spectral data has 4 bytes of additional information at it's end.
776 * [7:0]: all bins {max_magnitude[1:0], bitmap_weight[5:0]}
777 * [7:0]: all bins max_magnitude[9:2]
778 * [7:0]: all bins {max_index[5:0], max_magnitude[11:10]}
779 * [3:0]: max_exp (shift amount to size max bin to 8-bit unsigned)
781 struct ath_ht20_mag_info {
786 #define SPECTRAL_HT20_NUM_BINS 56
788 /* WARNING: don't actually use this struct! MAC may vary the amount of
789 * data by -1/+2. This struct is for reference only.
791 struct ath_ht20_fft_packet {
792 u8 data[SPECTRAL_HT20_NUM_BINS];
793 struct ath_ht20_mag_info mag_info;
794 struct ath_radar_info radar_info;
797 #define SPECTRAL_HT20_TOTAL_DATA_LEN (sizeof(struct ath_ht20_fft_packet))
799 /* Dynamic 20/40 mode:
801 * [7:0]: lower bins {max_magnitude[1:0], bitmap_weight[5:0]}
802 * [7:0]: lower bins max_magnitude[9:2]
803 * [7:0]: lower bins {max_index[5:0], max_magnitude[11:10]}
804 * [7:0]: upper bins {max_magnitude[1:0], bitmap_weight[5:0]}
805 * [7:0]: upper bins max_magnitude[9:2]
806 * [7:0]: upper bins {max_index[5:0], max_magnitude[11:10]}
807 * [3:0]: max_exp (shift amount to size max bin to 8-bit unsigned)
809 struct ath_ht20_40_mag_info {
815 #define SPECTRAL_HT20_40_NUM_BINS 128
817 /* WARNING: don't actually use this struct! MAC may vary the amount of
818 * data. This struct is for reference only.
820 struct ath_ht20_40_fft_packet {
821 u8 data[SPECTRAL_HT20_40_NUM_BINS];
822 struct ath_ht20_40_mag_info mag_info;
823 struct ath_radar_info radar_info;
827 #define SPECTRAL_HT20_40_TOTAL_DATA_LEN (sizeof(struct ath_ht20_40_fft_packet))
829 /* grabs the max magnitude from the all/upper/lower bins */
830 static inline u16 spectral_max_magnitude(u8 *bins)
832 return (bins[0] & 0xc0) >> 6 |
833 (bins[1] & 0xff) << 2 |
834 (bins[2] & 0x03) << 10;
837 /* return the max magnitude from the all/upper/lower bins */
838 static inline u8 spectral_max_index(u8 *bins)
840 s8 m = (bins[2] & 0xfc) >> 2;
842 /* TODO: this still doesn't always report the right values ... */
851 /* return the bitmap weight from the all/upper/lower bins */
852 static inline u8 spectral_bitmap_weight(u8 *bins)
854 return bins[0] & 0x3f;
857 /* FFT sample format given to userspace via debugfs.
859 * Please keep the type/length at the front position and change
860 * other fields after adding another sample type
862 * TODO: this might need rework when switching to nl80211-based
865 enum ath_fft_sample_type {
866 ATH_FFT_SAMPLE_HT20 = 0,
869 struct fft_sample_tlv {
870 u8 type; /* see ath_fft_sample */
872 /* type dependent data follows */
875 struct fft_sample_ht20 {
876 struct fft_sample_tlv tlv;
890 u16 data[SPECTRAL_HT20_NUM_BINS];
893 void ath9k_tasklet(unsigned long data);
894 int ath_cabq_update(struct ath_softc *);
896 static inline void ath_read_cachesize(struct ath_common *common, int *csz)
898 common->bus_ops->read_cachesize(common, csz);
901 extern struct ieee80211_ops ath9k_ops;
902 extern int ath9k_modparam_nohwcrypt;
903 extern int led_blink;
904 extern bool is_ath9k_unloaded;
906 u8 ath9k_parse_mpdudensity(u8 mpdudensity);
907 irqreturn_t ath_isr(int irq, void *dev);
908 int ath9k_init_device(u16 devid, struct ath_softc *sc,
909 const struct ath_bus_ops *bus_ops);
910 void ath9k_deinit_device(struct ath_softc *sc);
911 void ath9k_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw);
912 void ath9k_reload_chainmask_settings(struct ath_softc *sc);
914 bool ath9k_uses_beacons(int type);
915 void ath9k_spectral_scan_trigger(struct ieee80211_hw *hw);
916 int ath9k_spectral_scan_config(struct ieee80211_hw *hw,
917 enum spectral_mode spectral_mode);
920 #ifdef CONFIG_ATH9K_PCI
921 int ath_pci_init(void);
922 void ath_pci_exit(void);
924 static inline int ath_pci_init(void) { return 0; };
925 static inline void ath_pci_exit(void) {};
928 #ifdef CONFIG_ATH9K_AHB
929 int ath_ahb_init(void);
930 void ath_ahb_exit(void);
932 static inline int ath_ahb_init(void) { return 0; };
933 static inline void ath_ahb_exit(void) {};
936 void ath9k_ps_wakeup(struct ath_softc *sc);
937 void ath9k_ps_restore(struct ath_softc *sc);
939 u8 ath_txchainmask_reduction(struct ath_softc *sc, u8 chainmask, u32 rate);
941 void ath_start_rfkill_poll(struct ath_softc *sc);
942 extern void ath9k_rfkill_poll_state(struct ieee80211_hw *hw);
943 void ath9k_calculate_iter_data(struct ieee80211_hw *hw,
944 struct ieee80211_vif *vif,
945 struct ath9k_vif_iter_data *iter_data);