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mac80211: clean up beacon interval settings
[linux-block.git] / drivers / net / wireless / ath / ath9k / ath9k.h
CommitLineData
f078f209 1/*
cee075a2 2 * Copyright (c) 2008-2009 Atheros Communications Inc.
f078f209
LR		 3 *
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.
7 *
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.
15 */
16
17#ifndef ATH9K_H
18#define ATH9K_H
19
394cf0a1
S		 20#include <linux/etherdevice.h>
21#include <linux/device.h>
22#include <net/mac80211.h>
23#include <linux/leds.h>
24#include <linux/rfkill.h>
25
26#include "hw.h"
27#include "rc.h"
28#include "debug.h"
29
30struct ath_node;
31
32/* Macro to expand scalars to 64-bit objects */
33
34#define ito64(x) (sizeof(x) == 8) ? \
35 (((unsigned long long int)(x)) & (0xff)) : \
36 (sizeof(x) == 16) ? \
37 (((unsigned long long int)(x)) & 0xffff) : \
38 ((sizeof(x) == 32) ? \
39 (((unsigned long long int)(x)) & 0xffffffff) : \
40 (unsigned long long int)(x))
41
42/* increment with wrap-around */
43#define INCR(_l, _sz) do { \
44 (_l)++; \
45 (_l) &= ((_sz) - 1); \
46 } while (0)
47
48/* decrement with wrap-around */
49#define DECR(_l, _sz) do { \
50 (_l)--; \
51 (_l) &= ((_sz) - 1); \
52 } while (0)
53
54#define A_MAX(a, b) ((a) > (b) ? (a) : (b))
55
0ee904c3 56#define ASSERT(exp) BUG_ON(!(exp))
394cf0a1
S		 57
58#define TSF_TO_TU(_h,_l) \
59 ((((u32)(_h)) << 22) | (((u32)(_l)) >> 10))
60
61#define ATH_TXQ_SETUP(sc, i) ((sc)->tx.txqsetup & (1<<i))
62
63static const u8 ath_bcast_mac[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
64
65struct ath_config {
66 u32 ath_aggr_prot;
67 u16 txpowlimit;
68 u8 cabqReadytime;
394cf0a1
S		 69};
70
71/*************************/
72/* Descriptor Management */
73/*************************/
74
75#define ATH_TXBUF_RESET(_bf) do { \
a119cc49 76 (_bf)->bf_stale = false; \
394cf0a1
S		 77 (_bf)->bf_lastbf = NULL; \
78 (_bf)->bf_next = NULL; \
79 memset(&((_bf)->bf_state), 0, \
80 sizeof(struct ath_buf_state)); \
81 } while (0)
82
a119cc49
S		 83#define ATH_RXBUF_RESET(_bf) do { \
84 (_bf)->bf_stale = false; \
85 } while (0)
86
394cf0a1
S		 87/**
88 * enum buffer_type - Buffer type flags
89 *
90 * @BUF_HT: Send this buffer using HT capabilities
91 * @BUF_AMPDU: This buffer is an ampdu, as part of an aggregate (during TX)
92 * @BUF_AGGR: Indicates whether the buffer can be aggregated
93 * (used in aggregation scheduling)
94 * @BUF_RETRY: Indicates whether the buffer is retried
95 * @BUF_XRETRY: To denote excessive retries of the buffer
96 */
97enum buffer_type {
98 BUF_HT = BIT(1),
99 BUF_AMPDU = BIT(2),
100 BUF_AGGR = BIT(3),
101 BUF_RETRY = BIT(4),
102 BUF_XRETRY = BIT(5),
103};
104
105struct ath_buf_state {
17d7904d
S		 106 int bfs_nframes;
107 u16 bfs_al;
108 u16 bfs_frmlen;
109 int bfs_seqno;
110 int bfs_tidno;
111 int bfs_retries;
a119cc49 112 u8 bf_type;
394cf0a1
S		 113 u32 bfs_keyix;
114 enum ath9k_key_type bfs_keytype;
115};
116
117#define bf_nframes bf_state.bfs_nframes
118#define bf_al bf_state.bfs_al
119#define bf_frmlen bf_state.bfs_frmlen
120#define bf_retries bf_state.bfs_retries
121#define bf_seqno bf_state.bfs_seqno
122#define bf_tidno bf_state.bfs_tidno
123#define bf_keyix bf_state.bfs_keyix
124#define bf_keytype bf_state.bfs_keytype
125#define bf_isht(bf) (bf->bf_state.bf_type & BUF_HT)
126#define bf_isampdu(bf) (bf->bf_state.bf_type & BUF_AMPDU)
127#define bf_isaggr(bf) (bf->bf_state.bf_type & BUF_AGGR)
128#define bf_isretried(bf) (bf->bf_state.bf_type & BUF_RETRY)
129#define bf_isxretried(bf) (bf->bf_state.bf_type & BUF_XRETRY)
f078f209 130
394cf0a1
S		 131struct ath_buf {
132 struct list_head list;
133 struct ath_buf *bf_lastbf; /* last buf of this unit (a frame or
134 an aggregate) */
135 struct ath_buf *bf_next; /* next subframe in the aggregate */
a22be22a 136 struct sk_buff *bf_mpdu; /* enclosing frame structure */
394cf0a1
S		 137 struct ath_desc *bf_desc; /* virtual addr of desc */
138 dma_addr_t bf_daddr; /* physical addr of desc */
139 dma_addr_t bf_buf_addr; /* physical addr of data buffer */
a119cc49 140 bool bf_stale;
17d7904d
S		 141 u16 bf_flags;
142 struct ath_buf_state bf_state;
394cf0a1
S		 143 dma_addr_t bf_dmacontext;
144};
145
394cf0a1 146struct ath_descdma {
17d7904d
S		 147 struct ath_desc *dd_desc;
148 dma_addr_t dd_desc_paddr;
149 u32 dd_desc_len;
150 struct ath_buf *dd_bufptr;
394cf0a1
S		 151};
152
153int ath_descdma_setup(struct ath_softc *sc, struct ath_descdma *dd,
154 struct list_head *head, const char *name,
155 int nbuf, int ndesc);
156void ath_descdma_cleanup(struct ath_softc *sc, struct ath_descdma *dd,
157 struct list_head *head);
158
159/***********/
160/* RX / TX */
161/***********/
162
163#define ATH_MAX_ANTENNA 3
164#define ATH_RXBUF 512
165#define WME_NUM_TID 16
166#define ATH_TXBUF 512
167#define ATH_TXMAXTRY 13
168#define ATH_11N_TXMAXTRY 10
169#define ATH_MGT_TXMAXTRY 4
170#define WME_BA_BMP_SIZE 64
171#define WME_MAX_BA WME_BA_BMP_SIZE
172#define ATH_TID_MAX_BUFS (2 * WME_MAX_BA)
173
174#define TID_TO_WME_AC(_tid) \
175 ((((_tid) == 0) || ((_tid) == 3)) ? WME_AC_BE : \
176 (((_tid) == 1) || ((_tid) == 2)) ? WME_AC_BK : \
177 (((_tid) == 4) || ((_tid) == 5)) ? WME_AC_VI : \
178 WME_AC_VO)
179
180#define WME_AC_BE 0
181#define WME_AC_BK 1
182#define WME_AC_VI 2
183#define WME_AC_VO 3
184#define WME_NUM_AC 4
185
186#define ADDBA_EXCHANGE_ATTEMPTS 10
187#define ATH_AGGR_DELIM_SZ 4
188#define ATH_AGGR_MINPLEN 256 /* in bytes, minimum packet length */
189/* number of delimiters for encryption padding */
190#define ATH_AGGR_ENCRYPTDELIM 10
191/* minimum h/w qdepth to be sustained to maximize aggregation */
192#define ATH_AGGR_MIN_QDEPTH 2
193#define ATH_AMPDU_SUBFRAME_DEFAULT 32
194#define ATH_AMPDU_LIMIT_MAX (64 * 1024 - 1)
195#define ATH_AMPDU_LIMIT_DEFAULT ATH_AMPDU_LIMIT_MAX
196
197#define IEEE80211_SEQ_SEQ_SHIFT 4
198#define IEEE80211_SEQ_MAX 4096
199#define IEEE80211_MIN_AMPDU_BUF 0x8
200#define IEEE80211_HTCAP_MAXRXAMPDU_FACTOR 13
201#define IEEE80211_WEP_IVLEN 3
202#define IEEE80211_WEP_KIDLEN 1
203#define IEEE80211_WEP_CRCLEN 4
204#define IEEE80211_MAX_MPDU_LEN (3840 + FCS_LEN + \
205 (IEEE80211_WEP_IVLEN + \
206 IEEE80211_WEP_KIDLEN + \
207 IEEE80211_WEP_CRCLEN))
208
209/* return whether a bit at index _n in bitmap _bm is set
210 * _sz is the size of the bitmap */
211#define ATH_BA_ISSET(_bm, _n) (((_n) < (WME_BA_BMP_SIZE)) && \
212 ((_bm)[(_n) >> 5] & (1 << ((_n) & 31))))
213
214/* return block-ack bitmap index given sequence and starting sequence */
215#define ATH_BA_INDEX(_st, _seq) (((_seq) - (_st)) & (IEEE80211_SEQ_MAX - 1))
216
217/* returns delimiter padding required given the packet length */
218#define ATH_AGGR_GET_NDELIM(_len) \
219 (((((_len) + ATH_AGGR_DELIM_SZ) < ATH_AGGR_MINPLEN) ? \
220 (ATH_AGGR_MINPLEN - (_len) - ATH_AGGR_DELIM_SZ) : 0) >> 2)
221
222#define BAW_WITHIN(_start, _bawsz, _seqno) \
223 ((((_seqno) - (_start)) & 4095) < (_bawsz))
224
225#define ATH_DS_BA_SEQ(_ds) ((_ds)->ds_us.tx.ts_seqnum)
226#define ATH_DS_BA_BITMAP(_ds) (&(_ds)->ds_us.tx.ba_low)
227#define ATH_DS_TX_BA(_ds) ((_ds)->ds_us.tx.ts_flags & ATH9K_TX_BA)
228#define ATH_AN_2_TID(_an, _tidno) (&(_an)->tid[(_tidno)])
229
230enum ATH_AGGR_STATUS {
231 ATH_AGGR_DONE,
232 ATH_AGGR_BAW_CLOSED,
233 ATH_AGGR_LIMITED,
234};
235
236struct ath_txq {
17d7904d
S		 237 u32 axq_qnum;
238 u32 *axq_link;
239 struct list_head axq_q;
394cf0a1 240 spinlock_t axq_lock;
17d7904d
S		 241 u32 axq_depth;
242 u8 axq_aggr_depth;
243 u32 axq_totalqueued;
244 bool stopped;
245 struct ath_buf *axq_linkbuf;
394cf0a1
S		 246
247 /* first desc of the last descriptor that contains CTS */
248 struct ath_desc *axq_lastdsWithCTS;
249
250 /* final desc of the gating desc that determines whether
251 lastdsWithCTS has been DMA'ed or not */
252 struct ath_desc *axq_gatingds;
253
254 struct list_head axq_acq;
255};
256
257#define AGGR_CLEANUP BIT(1)
258#define AGGR_ADDBA_COMPLETE BIT(2)
259#define AGGR_ADDBA_PROGRESS BIT(3)
260
394cf0a1 261struct ath_atx_tid {
17d7904d
S		 262 struct list_head list;
263 struct list_head buf_q;
394cf0a1
S		 264 struct ath_node *an;
265 struct ath_atx_ac *ac;
17d7904d 266 struct ath_buf *tx_buf[ATH_TID_MAX_BUFS];
394cf0a1
S		 267 u16 seq_start;
268 u16 seq_next;
269 u16 baw_size;
270 int tidno;
17d7904d
S		 271 int baw_head; /* first un-acked tx buffer */
272 int baw_tail; /* next unused tx buffer slot */
394cf0a1
S		 273 int sched;
274 int paused;
275 u8 state;
276 int addba_exchangeattempts;
277};
278
394cf0a1 279struct ath_atx_ac {
17d7904d
S		 280 int sched;
281 int qnum;
282 struct list_head list;
283 struct list_head tid_q;
394cf0a1
S		 284};
285
394cf0a1
S		 286struct ath_tx_control {
287 struct ath_txq *txq;
288 int if_id;
f0ed85c6 289 enum ath9k_internal_frame_type frame_type;
394cf0a1
S		 290};
291
394cf0a1
S		 292#define ATH_TX_ERROR 0x01
293#define ATH_TX_XRETRY 0x02
294#define ATH_TX_BAR 0x04
394cf0a1 295
394cf0a1
S		 296struct ath_node {
297 struct ath_softc *an_sc;
298 struct ath_atx_tid tid[WME_NUM_TID];
299 struct ath_atx_ac ac[WME_NUM_AC];
300 u16 maxampdu;
301 u8 mpdudensity;
302};
303
304struct ath_tx {
305 u16 seq_no;
306 u32 txqsetup;
307 int hwq_map[ATH9K_WME_AC_VO+1];
308 spinlock_t txbuflock;
309 struct list_head txbuf;
310 struct ath_txq txq[ATH9K_NUM_TX_QUEUES];
311 struct ath_descdma txdma;
312};
313
314struct ath_rx {
315 u8 defant;
316 u8 rxotherant;
317 u32 *rxlink;
318 int bufsize;
319 unsigned int rxfilter;
320 spinlock_t rxflushlock;
321 spinlock_t rxbuflock;
322 struct list_head rxbuf;
323 struct ath_descdma rxdma;
324};
325
326int ath_startrecv(struct ath_softc *sc);
327bool ath_stoprecv(struct ath_softc *sc);
328void ath_flushrecv(struct ath_softc *sc);
329u32 ath_calcrxfilter(struct ath_softc *sc);
330int ath_rx_init(struct ath_softc *sc, int nbufs);
331void ath_rx_cleanup(struct ath_softc *sc);
332int ath_rx_tasklet(struct ath_softc *sc, int flush);
333struct ath_txq *ath_txq_setup(struct ath_softc *sc, int qtype, int subtype);
334void ath_tx_cleanupq(struct ath_softc *sc, struct ath_txq *txq);
335int ath_tx_setup(struct ath_softc *sc, int haltype);
336void ath_drain_all_txq(struct ath_softc *sc, bool retry_tx);
337void ath_draintxq(struct ath_softc *sc,
338 struct ath_txq *txq, bool retry_tx);
339void ath_tx_node_init(struct ath_softc *sc, struct ath_node *an);
340void ath_tx_node_cleanup(struct ath_softc *sc, struct ath_node *an);
341void ath_txq_schedule(struct ath_softc *sc, struct ath_txq *txq);
342int ath_tx_init(struct ath_softc *sc, int nbufs);
797fe5cb 343void ath_tx_cleanup(struct ath_softc *sc);
394cf0a1
S		 344struct ath_txq *ath_test_get_txq(struct ath_softc *sc, struct sk_buff *skb);
345int ath_txq_update(struct ath_softc *sc, int qnum,
346 struct ath9k_tx_queue_info *q);
c52f33d0 347int ath_tx_start(struct ieee80211_hw *hw, struct sk_buff *skb,
394cf0a1
S		 348 struct ath_tx_control *txctl);
349void ath_tx_tasklet(struct ath_softc *sc);
c52f33d0 350void ath_tx_cabq(struct ieee80211_hw *hw, struct sk_buff *skb);
394cf0a1
S		 351bool ath_tx_aggr_check(struct ath_softc *sc, struct ath_node *an, u8 tidno);
352int ath_tx_aggr_start(struct ath_softc *sc, struct ieee80211_sta *sta,
353 u16 tid, u16 *ssn);
354int ath_tx_aggr_stop(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid);
355void ath_tx_aggr_resume(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid);
356
357/********/
17d7904d 358/* VIFs */
394cf0a1 359/********/
f078f209 360
17d7904d 361struct ath_vif {
394cf0a1 362 int av_bslot;
4ed96f04 363 __le64 tsf_adjust; /* TSF adjustment for staggered beacons */
394cf0a1
S		 364 enum nl80211_iftype av_opmode;
365 struct ath_buf *av_bcbuf;
366 struct ath_tx_control av_btxctl;
f0ed85c6 367 u8 bssid[ETH_ALEN]; /* current BSSID from config_interface */
f078f209
LR		 368};
369
394cf0a1
S		 370/*******************/
371/* Beacon Handling */
372/*******************/
f078f209 373
394cf0a1
S		 374/*
375 * Regardless of the number of beacons we stagger, (i.e. regardless of the
376 * number of BSSIDs) if a given beacon does not go out even after waiting this
377 * number of beacon intervals, the game's up.
378 */
379#define BSTUCK_THRESH (9 * ATH_BCBUF)
4ed96f04 380#define ATH_BCBUF 4
394cf0a1
S		 381#define ATH_DEFAULT_BINTVAL 100 /* TU */
382#define ATH_DEFAULT_BMISS_LIMIT 10
383#define IEEE80211_MS_TO_TU(x) (((x) * 1000) / 1024)
384
385struct ath_beacon_config {
386 u16 beacon_interval;
387 u16 listen_interval;
388 u16 dtim_period;
389 u16 bmiss_timeout;
390 u8 dtim_count;
394cf0a1
S		 391};
392
393struct ath_beacon {
394 enum {
395 OK, /* no change needed */
396 UPDATE, /* update pending */
397 COMMIT /* beacon sent, commit change */
398 } updateslot; /* slot time update fsm */
399
400 u32 beaconq;
401 u32 bmisscnt;
402 u32 ast_be_xmit;
403 u64 bc_tstamp;
2c3db3d5 404 struct ieee80211_vif *bslot[ATH_BCBUF];
c52f33d0 405 struct ath_wiphy *bslot_aphy[ATH_BCBUF];
394cf0a1
S		 406 int slottime;
407 int slotupdate;
408 struct ath9k_tx_queue_info beacon_qi;
409 struct ath_descdma bdma;
410 struct ath_txq *cabq;
411 struct list_head bbuf;
412};
413
9fc9ab0a 414void ath_beacon_tasklet(unsigned long data);
2c3db3d5 415void ath_beacon_config(struct ath_softc *sc, struct ieee80211_vif *vif);
cbe61d8a 416int ath_beaconq_setup(struct ath_hw *ah);
c52f33d0 417int ath_beacon_alloc(struct ath_wiphy *aphy, struct ieee80211_vif *vif);
17d7904d 418void ath_beacon_return(struct ath_softc *sc, struct ath_vif *avp);
394cf0a1
S		 419
420/*******/
421/* ANI */
422/*******/
f078f209 423
20977d3e
S		 424#define ATH_STA_SHORT_CALINTERVAL 1000 /* 1 second */
425#define ATH_AP_SHORT_CALINTERVAL 100 /* 100 ms */
426#define ATH_ANI_POLLINTERVAL 100 /* 100 ms */
427#define ATH_LONG_CALINTERVAL 30000 /* 30 seconds */
428#define ATH_RESTART_CALINTERVAL 1200000 /* 20 minutes */
f078f209 429
394cf0a1 430struct ath_ani {
17d7904d
S		 431 bool caldone;
432 int16_t noise_floor;
433 unsigned int longcal_timer;
434 unsigned int shortcal_timer;
435 unsigned int resetcal_timer;
436 unsigned int checkani_timer;
394cf0a1 437 struct timer_list timer;
f078f209
LR		 438};
439
394cf0a1
S		 440/********************/
441/* LED Control */
442/********************/
f078f209 443
394cf0a1
S		 444#define ATH_LED_PIN 1
445#define ATH_LED_ON_DURATION_IDLE 350 /* in msecs */
446#define ATH_LED_OFF_DURATION_IDLE 250 /* in msecs */
f078f209 447
394cf0a1
S		 448enum ath_led_type {
449 ATH_LED_RADIO,
450 ATH_LED_ASSOC,
451 ATH_LED_TX,
452 ATH_LED_RX
f078f209
LR		 453};
454
394cf0a1
S		 455struct ath_led {
456 struct ath_softc *sc;
457 struct led_classdev led_cdev;
458 enum ath_led_type led_type;
459 char name[32];
460 bool registered;
f078f209
LR		 461};
462
394cf0a1
S		 463/* Rfkill */
464#define ATH_RFKILL_POLL_INTERVAL 2000 /* msecs */
f078f209 465
394cf0a1
S		 466struct ath_rfkill {
467 struct rfkill *rfkill;
468 struct delayed_work rfkill_poll;
469 char rfkill_name[32];
f078f209
LR		 470};
471
394cf0a1
S		 472/********************/
473/* Main driver core */
474/********************/
f078f209 475
394cf0a1
S		 476/*
477 * Default cache line size, in bytes.
478 * Used when PCI device not fully initialized by bootrom/BIOS
479*/
480#define DEFAULT_CACHELINE 32
481#define ATH_DEFAULT_NOISE_FLOOR -95
482#define ATH_REGCLASSIDS_MAX 10
483#define ATH_CABQ_READY_TIME 80 /* % of beacon interval */
484#define ATH_MAX_SW_RETRIES 10
485#define ATH_CHAN_MAX 255
486#define IEEE80211_WEP_NKID 4 /* number of key ids */
f1dc5600 487
394cf0a1
S		 488/*
489 * The key cache is used for h/w cipher state and also for
490 * tracking station state such as the current tx antenna.
491 * We also setup a mapping table between key cache slot indices
492 * and station state to short-circuit node lookups on rx.
493 * Different parts have different size key caches. We handle
494 * up to ATH_KEYMAX entries (could dynamically allocate state).
495 */
496#define ATH_KEYMAX 128 /* max key cache size we handle */
497
394cf0a1
S		 498#define ATH_TXPOWER_MAX 100 /* .5 dBm units */
499#define ATH_RSSI_DUMMY_MARKER 0x127
500#define ATH_RATE_DUMMY_MARKER 0
501
b238e90e
S		 502#define SC_OP_INVALID BIT(0)
503#define SC_OP_BEACONS BIT(1)
504#define SC_OP_RXAGGR BIT(2)
505#define SC_OP_TXAGGR BIT(3)
bdbdf46d
S		 506#define SC_OP_FULL_RESET BIT(4)
507#define SC_OP_PREAMBLE_SHORT BIT(5)
508#define SC_OP_PROTECT_ENABLE BIT(6)
509#define SC_OP_RXFLUSH BIT(7)
510#define SC_OP_LED_ASSOCIATED BIT(8)
511#define SC_OP_RFKILL_REGISTERED BIT(9)
512#define SC_OP_RFKILL_SW_BLOCKED BIT(10)
513#define SC_OP_RFKILL_HW_BLOCKED BIT(11)
514#define SC_OP_WAIT_FOR_BEACON BIT(12)
515#define SC_OP_LED_ON BIT(13)
516#define SC_OP_SCANNING BIT(14)
517#define SC_OP_TSF_RESET BIT(15)
394cf0a1
S		 518
519struct ath_bus_ops {
520 void (*read_cachesize)(struct ath_softc *sc, int *csz);
521 void (*cleanup)(struct ath_softc *sc);
cbe61d8a 522 bool (*eeprom_read)(struct ath_hw *ah, u32 off, u16 *data);
394cf0a1
S		 523};
524
bce048d7
JM		 525struct ath_wiphy;
526
394cf0a1
S		 527struct ath_softc {
528 struct ieee80211_hw *hw;
529 struct device *dev;
c52f33d0
JM		 530
531 spinlock_t wiphy_lock; /* spinlock to protect ath_wiphy data */
bce048d7 532 struct ath_wiphy *pri_wiphy;
c52f33d0
JM		 533 struct ath_wiphy **sec_wiphy; /* secondary wiphys (virtual radios); may
534 * have NULL entries */
535 int num_sec_wiphy; /* number of sec_wiphy pointers in the array */
0e2dedf9
JM		 536 int chan_idx;
537 int chan_is_ht;
538 struct ath_wiphy *next_wiphy;
539 struct work_struct chan_work;
7ec3e514
JM		 540 int wiphy_select_failures;
541 unsigned long wiphy_select_first_fail;
f98c3bd2
JM		 542 struct delayed_work wiphy_work;
543 unsigned long wiphy_scheduler_int;
544 int wiphy_scheduler_index;
0e2dedf9 545
394cf0a1
S		 546 struct tasklet_struct intr_tq;
547 struct tasklet_struct bcon_tasklet;
cbe61d8a 548 struct ath_hw *sc_ah;
394cf0a1
S		 549 void __iomem *mem;
550 int irq;
551 spinlock_t sc_resetlock;
2d6a5e95 552 spinlock_t sc_serial_rw;
394cf0a1
S		 553 struct mutex mutex;
554
17d7904d 555 u8 curbssid[ETH_ALEN];
17d7904d
S		 556 u8 bssidmask[ETH_ALEN];
557 u32 intrstatus;
394cf0a1 558 u32 sc_flags; /* SC_OP_* */
17d7904d
S		 559 u16 curtxpow;
560 u16 curaid;
561 u16 cachelsz;
562 u8 nbcnvifs;
563 u16 nvifs;
564 u8 tx_chainmask;
565 u8 rx_chainmask;
566 u32 keymax;
567 DECLARE_BITMAP(keymap, ATH_KEYMAX);
568 u8 splitmic;
394cf0a1 569 atomic_t ps_usecount;
17d7904d
S		 570 enum ath9k_int imask;
571 enum ath9k_ht_extprotspacing ht_extprotspacing;
394cf0a1
S		 572 enum ath9k_ht_macmode tx_chan_width;
573
17d7904d 574 struct ath_config config;
394cf0a1
S		 575 struct ath_rx rx;
576 struct ath_tx tx;
577 struct ath_beacon beacon;
394cf0a1
S		 578 struct ieee80211_rate rates[IEEE80211_NUM_BANDS][ATH_RATE_MAX];
579 struct ath_rate_table *hw_rate_table[ATH9K_MODE_MAX];
580 struct ath_rate_table *cur_rate_table;
581 struct ieee80211_supported_band sbands[IEEE80211_NUM_BANDS];
582
583 struct ath_led radio_led;
584 struct ath_led assoc_led;
585 struct ath_led tx_led;
586 struct ath_led rx_led;
587 struct delayed_work ath_led_blink_work;
588 int led_on_duration;
589 int led_off_duration;
590 int led_on_cnt;
591 int led_off_cnt;
592
57c4d7b4
JB		 593 int beacon_interval;
594
394cf0a1 595 struct ath_rfkill rf_kill;
17d7904d
S		 596 struct ath_ani ani;
597 struct ath9k_node_stats nodestats;
394cf0a1 598#ifdef CONFIG_ATH9K_DEBUG
17d7904d 599 struct ath9k_debug debug;
394cf0a1
S		 600#endif
601 struct ath_bus_ops *bus_ops;
602};
603
bce048d7
JM		 604struct ath_wiphy {
605 struct ath_softc *sc; /* shared for all virtual wiphys */
606 struct ieee80211_hw *hw;
f0ed85c6 607 enum ath_wiphy_state {
9580a222 608 ATH_WIPHY_INACTIVE,
f0ed85c6
JM		 609 ATH_WIPHY_ACTIVE,
610 ATH_WIPHY_PAUSING,
611 ATH_WIPHY_PAUSED,
8089cc47 612 ATH_WIPHY_SCAN,
f0ed85c6 613 } state;
0e2dedf9
JM		 614 int chan_idx;
615 int chan_is_ht;
bce048d7
JM		 616};
617
394cf0a1
S		 618int ath_reset(struct ath_softc *sc, bool retry_tx);
619int ath_get_hal_qnum(u16 queue, struct ath_softc *sc);
620int ath_get_mac80211_qnum(u32 queue, struct ath_softc *sc);
621int ath_cabq_update(struct ath_softc *);
622
623static inline void ath_read_cachesize(struct ath_softc *sc, int *csz)
624{
625 sc->bus_ops->read_cachesize(sc, csz);
626}
627
628static inline void ath_bus_cleanup(struct ath_softc *sc)
629{
630 sc->bus_ops->cleanup(sc);
631}
632
633extern struct ieee80211_ops ath9k_ops;
634
635irqreturn_t ath_isr(int irq, void *dev);
636void ath_cleanup(struct ath_softc *sc);
637int ath_attach(u16 devid, struct ath_softc *sc);
638void ath_detach(struct ath_softc *sc);
639const char *ath_mac_bb_name(u32 mac_bb_version);
640const char *ath_rf_name(u16 rf_version);
c52f33d0 641void ath_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw);
0e2dedf9
JM		 642void ath9k_update_ichannel(struct ath_softc *sc, struct ieee80211_hw *hw,
643 struct ath9k_channel *ichan);
644void ath_update_chainmask(struct ath_softc *sc, int is_ht);
645int ath_set_channel(struct ath_softc *sc, struct ieee80211_hw *hw,
646 struct ath9k_channel *hchan);
7ec3e514
JM		 647void ath_radio_enable(struct ath_softc *sc);
648void ath_radio_disable(struct ath_softc *sc);
394cf0a1
S		 649
650#ifdef CONFIG_PCI
651int ath_pci_init(void);
652void ath_pci_exit(void);
653#else
654static inline int ath_pci_init(void) { return 0; };
655static inline void ath_pci_exit(void) {};
f1dc5600 656#endif
f1dc5600 657
394cf0a1
S		 658#ifdef CONFIG_ATHEROS_AR71XX
659int ath_ahb_init(void);
660void ath_ahb_exit(void);
661#else
662static inline int ath_ahb_init(void) { return 0; };
663static inline void ath_ahb_exit(void) {};
f078f209 664#endif
394cf0a1
S		 665
666static inline void ath9k_ps_wakeup(struct ath_softc *sc)
667{
668 if (atomic_inc_return(&sc->ps_usecount) == 1)
2660b81a
S		 669 if (sc->sc_ah->power_mode != ATH9K_PM_AWAKE) {
670 sc->sc_ah->restore_mode = sc->sc_ah->power_mode;
394cf0a1
S		 671 ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_AWAKE);
672 }
673}
674
675static inline void ath9k_ps_restore(struct ath_softc *sc)
676{
677 if (atomic_dec_and_test(&sc->ps_usecount))
541d8dd5
VN		 678 if ((sc->hw->conf.flags & IEEE80211_CONF_PS) &&
679 !(sc->sc_flags & SC_OP_WAIT_FOR_BEACON))
394cf0a1 680 ath9k_hw_setpower(sc->sc_ah,
2660b81a 681 sc->sc_ah->restore_mode);
394cf0a1 682}
0c98de65 683
8ca21f01
JM		 684
685void ath9k_set_bssid_mask(struct ieee80211_hw *hw);
c52f33d0
JM		 686int ath9k_wiphy_add(struct ath_softc *sc);
687int ath9k_wiphy_del(struct ath_wiphy *aphy);
f0ed85c6
JM		 688void ath9k_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb);
689int ath9k_wiphy_pause(struct ath_wiphy *aphy);
690int ath9k_wiphy_unpause(struct ath_wiphy *aphy);
0e2dedf9 691int ath9k_wiphy_select(struct ath_wiphy *aphy);
f98c3bd2 692void ath9k_wiphy_set_scheduler(struct ath_softc *sc, unsigned int msec_int);
0e2dedf9 693void ath9k_wiphy_chan_work(struct work_struct *work);
9580a222 694bool ath9k_wiphy_started(struct ath_softc *sc);
18eb62f8
JM		 695void ath9k_wiphy_pause_all_forced(struct ath_softc *sc,
696 struct ath_wiphy *selected);
8089cc47 697bool ath9k_wiphy_scanning(struct ath_softc *sc);
f98c3bd2 698void ath9k_wiphy_work(struct work_struct *work);
8ca21f01 699
2d6a5e95
DM		 700/*
701 * Read and write, they both share the same lock. We do this to serialize
702 * reads and writes on Atheros 802.11n PCI devices only. This is required
703 * as the FIFO on these devices can only accept sanely 2 requests. After
704 * that the device goes bananas. Serializing the reads/writes prevents this
705 * from happening.
706 */
f1dc5600 707
2d6a5e95
DM		 708static inline void ath9k_iowrite32(struct ath_hw *ah, u32 reg_offset, u32 val)
709{
710 if (ah->config.serialize_regmode == SER_REG_MODE_ON) {
711 unsigned long flags;
712 spin_lock_irqsave(&ah->ah_sc->sc_serial_rw, flags);
713 iowrite32(val, ah->ah_sc->mem + reg_offset);
714 spin_unlock_irqrestore(&ah->ah_sc->sc_serial_rw, flags);
715 } else
716 iowrite32(val, ah->ah_sc->mem + reg_offset);
717}
718
719static inline unsigned int ath9k_ioread32(struct ath_hw *ah, u32 reg_offset)
720{
721 u32 val;
722 if (ah->config.serialize_regmode == SER_REG_MODE_ON) {
723 unsigned long flags;
724 spin_lock_irqsave(&ah->ah_sc->sc_serial_rw, flags);
725 val = ioread32(ah->ah_sc->mem + reg_offset);
726 spin_unlock_irqrestore(&ah->ah_sc->sc_serial_rw, flags);
727 } else
728 val = ioread32(ah->ah_sc->mem + reg_offset);
729 return val;
730}
731
394cf0a1 732#endif /* ATH9K_H */
Linux 6.x block layer and io_uring tree(s)