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f078f209 LR |
1 | /* |
2 | * Copyright (c) 2008 Atheros Communications Inc. | |
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 | ||
30 | struct 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 | ||
56 | #define ASSERT(exp) do { \ | |
57 | if (unlikely(!(exp))) { \ | |
58 | BUG(); \ | |
59 | } \ | |
60 | } while (0) | |
61 | ||
62 | #define TSF_TO_TU(_h,_l) \ | |
63 | ((((u32)(_h)) << 22) | (((u32)(_l)) >> 10)) | |
64 | ||
65 | #define ATH_TXQ_SETUP(sc, i) ((sc)->tx.txqsetup & (1<<i)) | |
66 | ||
67 | static const u8 ath_bcast_mac[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; | |
68 | ||
69 | struct ath_config { | |
70 | u32 ath_aggr_prot; | |
71 | u16 txpowlimit; | |
72 | u8 cabqReadytime; | |
73 | u8 swBeaconProcess; | |
74 | }; | |
75 | ||
76 | /*************************/ | |
77 | /* Descriptor Management */ | |
78 | /*************************/ | |
79 | ||
80 | #define ATH_TXBUF_RESET(_bf) do { \ | |
81 | (_bf)->bf_status = 0; \ | |
82 | (_bf)->bf_lastbf = NULL; \ | |
83 | (_bf)->bf_next = NULL; \ | |
84 | memset(&((_bf)->bf_state), 0, \ | |
85 | sizeof(struct ath_buf_state)); \ | |
86 | } while (0) | |
87 | ||
88 | /** | |
89 | * enum buffer_type - Buffer type flags | |
90 | * | |
91 | * @BUF_HT: Send this buffer using HT capabilities | |
92 | * @BUF_AMPDU: This buffer is an ampdu, as part of an aggregate (during TX) | |
93 | * @BUF_AGGR: Indicates whether the buffer can be aggregated | |
94 | * (used in aggregation scheduling) | |
95 | * @BUF_RETRY: Indicates whether the buffer is retried | |
96 | * @BUF_XRETRY: To denote excessive retries of the buffer | |
97 | */ | |
98 | enum buffer_type { | |
99 | BUF_HT = BIT(1), | |
100 | BUF_AMPDU = BIT(2), | |
101 | BUF_AGGR = BIT(3), | |
102 | BUF_RETRY = BIT(4), | |
103 | BUF_XRETRY = BIT(5), | |
104 | }; | |
105 | ||
106 | struct ath_buf_state { | |
17d7904d S |
107 | int bfs_nframes; |
108 | u16 bfs_al; | |
109 | u16 bfs_frmlen; | |
110 | int bfs_seqno; | |
111 | int bfs_tidno; | |
112 | int bfs_retries; | |
113 | u32 bf_type; | |
394cf0a1 S |
114 | u32 bfs_keyix; |
115 | enum ath9k_key_type bfs_keytype; | |
116 | }; | |
117 | ||
118 | #define bf_nframes bf_state.bfs_nframes | |
119 | #define bf_al bf_state.bfs_al | |
120 | #define bf_frmlen bf_state.bfs_frmlen | |
121 | #define bf_retries bf_state.bfs_retries | |
122 | #define bf_seqno bf_state.bfs_seqno | |
123 | #define bf_tidno bf_state.bfs_tidno | |
124 | #define bf_keyix bf_state.bfs_keyix | |
125 | #define bf_keytype bf_state.bfs_keytype | |
126 | #define bf_isht(bf) (bf->bf_state.bf_type & BUF_HT) | |
127 | #define bf_isampdu(bf) (bf->bf_state.bf_type & BUF_AMPDU) | |
128 | #define bf_isaggr(bf) (bf->bf_state.bf_type & BUF_AGGR) | |
129 | #define bf_isretried(bf) (bf->bf_state.bf_type & BUF_RETRY) | |
130 | #define bf_isxretried(bf) (bf->bf_state.bf_type & BUF_XRETRY) | |
f078f209 | 131 | |
394cf0a1 S |
132 | struct ath_buf { |
133 | struct list_head list; | |
134 | struct ath_buf *bf_lastbf; /* last buf of this unit (a frame or | |
135 | an aggregate) */ | |
136 | struct ath_buf *bf_next; /* next subframe in the aggregate */ | |
137 | void *bf_mpdu; /* enclosing frame structure */ | |
138 | struct ath_desc *bf_desc; /* virtual addr of desc */ | |
139 | dma_addr_t bf_daddr; /* physical addr of desc */ | |
140 | dma_addr_t bf_buf_addr; /* physical addr of data buffer */ | |
141 | u32 bf_status; | |
17d7904d S |
142 | u16 bf_flags; |
143 | struct ath_buf_state bf_state; | |
394cf0a1 S |
144 | dma_addr_t bf_dmacontext; |
145 | }; | |
146 | ||
147 | #define ATH_RXBUF_RESET(_bf) ((_bf)->bf_status = 0) | |
148 | #define ATH_BUFSTATUS_STALE 0x00000002 | |
149 | ||
394cf0a1 S |
150 | struct ath_descdma { |
151 | const char *dd_name; | |
17d7904d S |
152 | struct ath_desc *dd_desc; |
153 | dma_addr_t dd_desc_paddr; | |
154 | u32 dd_desc_len; | |
155 | struct ath_buf *dd_bufptr; | |
394cf0a1 S |
156 | dma_addr_t dd_dmacontext; |
157 | }; | |
158 | ||
159 | int ath_descdma_setup(struct ath_softc *sc, struct ath_descdma *dd, | |
160 | struct list_head *head, const char *name, | |
161 | int nbuf, int ndesc); | |
162 | void ath_descdma_cleanup(struct ath_softc *sc, struct ath_descdma *dd, | |
163 | struct list_head *head); | |
164 | ||
165 | /***********/ | |
166 | /* RX / TX */ | |
167 | /***********/ | |
168 | ||
169 | #define ATH_MAX_ANTENNA 3 | |
170 | #define ATH_RXBUF 512 | |
171 | #define WME_NUM_TID 16 | |
172 | #define ATH_TXBUF 512 | |
173 | #define ATH_TXMAXTRY 13 | |
174 | #define ATH_11N_TXMAXTRY 10 | |
175 | #define ATH_MGT_TXMAXTRY 4 | |
176 | #define WME_BA_BMP_SIZE 64 | |
177 | #define WME_MAX_BA WME_BA_BMP_SIZE | |
178 | #define ATH_TID_MAX_BUFS (2 * WME_MAX_BA) | |
179 | ||
180 | #define TID_TO_WME_AC(_tid) \ | |
181 | ((((_tid) == 0) || ((_tid) == 3)) ? WME_AC_BE : \ | |
182 | (((_tid) == 1) || ((_tid) == 2)) ? WME_AC_BK : \ | |
183 | (((_tid) == 4) || ((_tid) == 5)) ? WME_AC_VI : \ | |
184 | WME_AC_VO) | |
185 | ||
186 | #define WME_AC_BE 0 | |
187 | #define WME_AC_BK 1 | |
188 | #define WME_AC_VI 2 | |
189 | #define WME_AC_VO 3 | |
190 | #define WME_NUM_AC 4 | |
191 | ||
192 | #define ADDBA_EXCHANGE_ATTEMPTS 10 | |
193 | #define ATH_AGGR_DELIM_SZ 4 | |
194 | #define ATH_AGGR_MINPLEN 256 /* in bytes, minimum packet length */ | |
195 | /* number of delimiters for encryption padding */ | |
196 | #define ATH_AGGR_ENCRYPTDELIM 10 | |
197 | /* minimum h/w qdepth to be sustained to maximize aggregation */ | |
198 | #define ATH_AGGR_MIN_QDEPTH 2 | |
199 | #define ATH_AMPDU_SUBFRAME_DEFAULT 32 | |
200 | #define ATH_AMPDU_LIMIT_MAX (64 * 1024 - 1) | |
201 | #define ATH_AMPDU_LIMIT_DEFAULT ATH_AMPDU_LIMIT_MAX | |
202 | ||
203 | #define IEEE80211_SEQ_SEQ_SHIFT 4 | |
204 | #define IEEE80211_SEQ_MAX 4096 | |
205 | #define IEEE80211_MIN_AMPDU_BUF 0x8 | |
206 | #define IEEE80211_HTCAP_MAXRXAMPDU_FACTOR 13 | |
207 | #define IEEE80211_WEP_IVLEN 3 | |
208 | #define IEEE80211_WEP_KIDLEN 1 | |
209 | #define IEEE80211_WEP_CRCLEN 4 | |
210 | #define IEEE80211_MAX_MPDU_LEN (3840 + FCS_LEN + \ | |
211 | (IEEE80211_WEP_IVLEN + \ | |
212 | IEEE80211_WEP_KIDLEN + \ | |
213 | IEEE80211_WEP_CRCLEN)) | |
214 | ||
215 | /* return whether a bit at index _n in bitmap _bm is set | |
216 | * _sz is the size of the bitmap */ | |
217 | #define ATH_BA_ISSET(_bm, _n) (((_n) < (WME_BA_BMP_SIZE)) && \ | |
218 | ((_bm)[(_n) >> 5] & (1 << ((_n) & 31)))) | |
219 | ||
220 | /* return block-ack bitmap index given sequence and starting sequence */ | |
221 | #define ATH_BA_INDEX(_st, _seq) (((_seq) - (_st)) & (IEEE80211_SEQ_MAX - 1)) | |
222 | ||
223 | /* returns delimiter padding required given the packet length */ | |
224 | #define ATH_AGGR_GET_NDELIM(_len) \ | |
225 | (((((_len) + ATH_AGGR_DELIM_SZ) < ATH_AGGR_MINPLEN) ? \ | |
226 | (ATH_AGGR_MINPLEN - (_len) - ATH_AGGR_DELIM_SZ) : 0) >> 2) | |
227 | ||
228 | #define BAW_WITHIN(_start, _bawsz, _seqno) \ | |
229 | ((((_seqno) - (_start)) & 4095) < (_bawsz)) | |
230 | ||
231 | #define ATH_DS_BA_SEQ(_ds) ((_ds)->ds_us.tx.ts_seqnum) | |
232 | #define ATH_DS_BA_BITMAP(_ds) (&(_ds)->ds_us.tx.ba_low) | |
233 | #define ATH_DS_TX_BA(_ds) ((_ds)->ds_us.tx.ts_flags & ATH9K_TX_BA) | |
234 | #define ATH_AN_2_TID(_an, _tidno) (&(_an)->tid[(_tidno)]) | |
235 | ||
236 | enum ATH_AGGR_STATUS { | |
237 | ATH_AGGR_DONE, | |
238 | ATH_AGGR_BAW_CLOSED, | |
239 | ATH_AGGR_LIMITED, | |
240 | }; | |
241 | ||
242 | struct ath_txq { | |
17d7904d S |
243 | u32 axq_qnum; |
244 | u32 *axq_link; | |
245 | struct list_head axq_q; | |
394cf0a1 | 246 | spinlock_t axq_lock; |
17d7904d S |
247 | u32 axq_depth; |
248 | u8 axq_aggr_depth; | |
249 | u32 axq_totalqueued; | |
250 | bool stopped; | |
251 | struct ath_buf *axq_linkbuf; | |
394cf0a1 S |
252 | |
253 | /* first desc of the last descriptor that contains CTS */ | |
254 | struct ath_desc *axq_lastdsWithCTS; | |
255 | ||
256 | /* final desc of the gating desc that determines whether | |
257 | lastdsWithCTS has been DMA'ed or not */ | |
258 | struct ath_desc *axq_gatingds; | |
259 | ||
260 | struct list_head axq_acq; | |
261 | }; | |
262 | ||
263 | #define AGGR_CLEANUP BIT(1) | |
264 | #define AGGR_ADDBA_COMPLETE BIT(2) | |
265 | #define AGGR_ADDBA_PROGRESS BIT(3) | |
266 | ||
394cf0a1 | 267 | struct ath_atx_tid { |
17d7904d S |
268 | struct list_head list; |
269 | struct list_head buf_q; | |
394cf0a1 S |
270 | struct ath_node *an; |
271 | struct ath_atx_ac *ac; | |
17d7904d | 272 | struct ath_buf *tx_buf[ATH_TID_MAX_BUFS]; |
394cf0a1 S |
273 | u16 seq_start; |
274 | u16 seq_next; | |
275 | u16 baw_size; | |
276 | int tidno; | |
17d7904d S |
277 | int baw_head; /* first un-acked tx buffer */ |
278 | int baw_tail; /* next unused tx buffer slot */ | |
394cf0a1 S |
279 | int sched; |
280 | int paused; | |
281 | u8 state; | |
282 | int addba_exchangeattempts; | |
283 | }; | |
284 | ||
394cf0a1 | 285 | struct ath_atx_ac { |
17d7904d S |
286 | int sched; |
287 | int qnum; | |
288 | struct list_head list; | |
289 | struct list_head tid_q; | |
394cf0a1 S |
290 | }; |
291 | ||
394cf0a1 S |
292 | struct ath_tx_control { |
293 | struct ath_txq *txq; | |
294 | int if_id; | |
295 | }; | |
296 | ||
394cf0a1 | 297 | struct ath_xmit_status { |
17d7904d S |
298 | int retries; |
299 | int flags; | |
394cf0a1 S |
300 | #define ATH_TX_ERROR 0x01 |
301 | #define ATH_TX_XRETRY 0x02 | |
302 | #define ATH_TX_BAR 0x04 | |
303 | }; | |
304 | ||
305 | /* All RSSI values are noise floor adjusted */ | |
306 | struct ath_tx_stat { | |
307 | int rssi; | |
308 | int rssictl[ATH_MAX_ANTENNA]; | |
309 | int rssiextn[ATH_MAX_ANTENNA]; | |
310 | int rateieee; | |
311 | int rateKbps; | |
312 | int ratecode; | |
313 | int flags; | |
314 | u32 airtime; /* time on air per final tx rate */ | |
315 | }; | |
316 | ||
317 | struct aggr_rifs_param { | |
318 | int param_max_frames; | |
319 | int param_max_len; | |
320 | int param_rl; | |
321 | int param_al; | |
322 | struct ath_rc_series *param_rcs; | |
323 | }; | |
324 | ||
325 | struct ath_node { | |
326 | struct ath_softc *an_sc; | |
327 | struct ath_atx_tid tid[WME_NUM_TID]; | |
328 | struct ath_atx_ac ac[WME_NUM_AC]; | |
329 | u16 maxampdu; | |
330 | u8 mpdudensity; | |
331 | }; | |
332 | ||
333 | struct ath_tx { | |
334 | u16 seq_no; | |
335 | u32 txqsetup; | |
336 | int hwq_map[ATH9K_WME_AC_VO+1]; | |
337 | spinlock_t txbuflock; | |
338 | struct list_head txbuf; | |
339 | struct ath_txq txq[ATH9K_NUM_TX_QUEUES]; | |
340 | struct ath_descdma txdma; | |
341 | }; | |
342 | ||
343 | struct ath_rx { | |
344 | u8 defant; | |
345 | u8 rxotherant; | |
346 | u32 *rxlink; | |
347 | int bufsize; | |
348 | unsigned int rxfilter; | |
349 | spinlock_t rxflushlock; | |
350 | spinlock_t rxbuflock; | |
351 | struct list_head rxbuf; | |
352 | struct ath_descdma rxdma; | |
353 | }; | |
354 | ||
355 | int ath_startrecv(struct ath_softc *sc); | |
356 | bool ath_stoprecv(struct ath_softc *sc); | |
357 | void ath_flushrecv(struct ath_softc *sc); | |
358 | u32 ath_calcrxfilter(struct ath_softc *sc); | |
359 | int ath_rx_init(struct ath_softc *sc, int nbufs); | |
360 | void ath_rx_cleanup(struct ath_softc *sc); | |
361 | int ath_rx_tasklet(struct ath_softc *sc, int flush); | |
362 | struct ath_txq *ath_txq_setup(struct ath_softc *sc, int qtype, int subtype); | |
363 | void ath_tx_cleanupq(struct ath_softc *sc, struct ath_txq *txq); | |
364 | int ath_tx_setup(struct ath_softc *sc, int haltype); | |
365 | void ath_drain_all_txq(struct ath_softc *sc, bool retry_tx); | |
366 | void ath_draintxq(struct ath_softc *sc, | |
367 | struct ath_txq *txq, bool retry_tx); | |
368 | void ath_tx_node_init(struct ath_softc *sc, struct ath_node *an); | |
369 | void ath_tx_node_cleanup(struct ath_softc *sc, struct ath_node *an); | |
370 | void ath_txq_schedule(struct ath_softc *sc, struct ath_txq *txq); | |
371 | int ath_tx_init(struct ath_softc *sc, int nbufs); | |
372 | int ath_tx_cleanup(struct ath_softc *sc); | |
373 | struct ath_txq *ath_test_get_txq(struct ath_softc *sc, struct sk_buff *skb); | |
374 | int ath_txq_update(struct ath_softc *sc, int qnum, | |
375 | struct ath9k_tx_queue_info *q); | |
376 | int ath_tx_start(struct ath_softc *sc, struct sk_buff *skb, | |
377 | struct ath_tx_control *txctl); | |
378 | void ath_tx_tasklet(struct ath_softc *sc); | |
379 | void ath_tx_cabq(struct ath_softc *sc, struct sk_buff *skb); | |
380 | bool ath_tx_aggr_check(struct ath_softc *sc, struct ath_node *an, u8 tidno); | |
381 | int ath_tx_aggr_start(struct ath_softc *sc, struct ieee80211_sta *sta, | |
382 | u16 tid, u16 *ssn); | |
383 | int ath_tx_aggr_stop(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid); | |
384 | void ath_tx_aggr_resume(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid); | |
385 | ||
386 | /********/ | |
17d7904d | 387 | /* VIFs */ |
394cf0a1 | 388 | /********/ |
f078f209 | 389 | |
394cf0a1 S |
390 | /* |
391 | * Define the scheme that we select MAC address for multiple | |
17d7904d S |
392 | * BSS on the same radio. The very first VIF will just use the MAC |
393 | * address from the EEPROM. For the next 3 VIFs, we set the | |
394cf0a1 | 394 | * U/L bit (bit 1) in MAC address, and use the next two bits as the |
17d7904d | 395 | * index of the VIF. |
394cf0a1 | 396 | */ |
f078f209 | 397 | |
17d7904d | 398 | #define ATH_SET_VIF_BSSID_MASK(bssid_mask) \ |
394cf0a1 | 399 | ((bssid_mask)[0] &= ~(((ATH_BCBUF-1)<<2)|0x02)) |
f078f209 | 400 | |
17d7904d | 401 | struct ath_vif { |
394cf0a1 S |
402 | int av_bslot; |
403 | enum nl80211_iftype av_opmode; | |
404 | struct ath_buf *av_bcbuf; | |
405 | struct ath_tx_control av_btxctl; | |
f078f209 LR |
406 | }; |
407 | ||
394cf0a1 S |
408 | /*******************/ |
409 | /* Beacon Handling */ | |
410 | /*******************/ | |
f078f209 | 411 | |
394cf0a1 S |
412 | /* |
413 | * Regardless of the number of beacons we stagger, (i.e. regardless of the | |
414 | * number of BSSIDs) if a given beacon does not go out even after waiting this | |
415 | * number of beacon intervals, the game's up. | |
416 | */ | |
417 | #define BSTUCK_THRESH (9 * ATH_BCBUF) | |
418 | #define ATH_BCBUF 1 | |
419 | #define ATH_DEFAULT_BINTVAL 100 /* TU */ | |
420 | #define ATH_DEFAULT_BMISS_LIMIT 10 | |
421 | #define IEEE80211_MS_TO_TU(x) (((x) * 1000) / 1024) | |
422 | ||
423 | struct ath_beacon_config { | |
424 | u16 beacon_interval; | |
425 | u16 listen_interval; | |
426 | u16 dtim_period; | |
427 | u16 bmiss_timeout; | |
428 | u8 dtim_count; | |
429 | u8 tim_offset; | |
430 | union { | |
431 | u64 last_tsf; | |
432 | u8 last_tstamp[8]; | |
433 | } u; /* last received beacon/probe response timestamp of this BSS. */ | |
434 | }; | |
435 | ||
436 | struct ath_beacon { | |
437 | enum { | |
438 | OK, /* no change needed */ | |
439 | UPDATE, /* update pending */ | |
440 | COMMIT /* beacon sent, commit change */ | |
441 | } updateslot; /* slot time update fsm */ | |
442 | ||
443 | u32 beaconq; | |
444 | u32 bmisscnt; | |
445 | u32 ast_be_xmit; | |
446 | u64 bc_tstamp; | |
447 | int bslot[ATH_BCBUF]; | |
448 | int slottime; | |
449 | int slotupdate; | |
450 | struct ath9k_tx_queue_info beacon_qi; | |
451 | struct ath_descdma bdma; | |
452 | struct ath_txq *cabq; | |
453 | struct list_head bbuf; | |
454 | }; | |
455 | ||
456 | void ath9k_beacon_tasklet(unsigned long data); | |
457 | void ath_beacon_config(struct ath_softc *sc, int if_id); | |
cbe61d8a | 458 | int ath_beaconq_setup(struct ath_hw *ah); |
394cf0a1 | 459 | int ath_beacon_alloc(struct ath_softc *sc, int if_id); |
17d7904d | 460 | void ath_beacon_return(struct ath_softc *sc, struct ath_vif *avp); |
394cf0a1 S |
461 | void ath_beacon_sync(struct ath_softc *sc, int if_id); |
462 | ||
463 | /*******/ | |
464 | /* ANI */ | |
465 | /*******/ | |
f078f209 | 466 | |
20977d3e S |
467 | #define ATH_STA_SHORT_CALINTERVAL 1000 /* 1 second */ |
468 | #define ATH_AP_SHORT_CALINTERVAL 100 /* 100 ms */ | |
469 | #define ATH_ANI_POLLINTERVAL 100 /* 100 ms */ | |
470 | #define ATH_LONG_CALINTERVAL 30000 /* 30 seconds */ | |
471 | #define ATH_RESTART_CALINTERVAL 1200000 /* 20 minutes */ | |
f078f209 | 472 | |
394cf0a1 | 473 | struct ath_ani { |
17d7904d S |
474 | bool caldone; |
475 | int16_t noise_floor; | |
476 | unsigned int longcal_timer; | |
477 | unsigned int shortcal_timer; | |
478 | unsigned int resetcal_timer; | |
479 | unsigned int checkani_timer; | |
394cf0a1 | 480 | struct timer_list timer; |
f078f209 LR |
481 | }; |
482 | ||
394cf0a1 S |
483 | /********************/ |
484 | /* LED Control */ | |
485 | /********************/ | |
f078f209 | 486 | |
394cf0a1 S |
487 | #define ATH_LED_PIN 1 |
488 | #define ATH_LED_ON_DURATION_IDLE 350 /* in msecs */ | |
489 | #define ATH_LED_OFF_DURATION_IDLE 250 /* in msecs */ | |
f078f209 | 490 | |
394cf0a1 S |
491 | enum ath_led_type { |
492 | ATH_LED_RADIO, | |
493 | ATH_LED_ASSOC, | |
494 | ATH_LED_TX, | |
495 | ATH_LED_RX | |
f078f209 LR |
496 | }; |
497 | ||
394cf0a1 S |
498 | struct ath_led { |
499 | struct ath_softc *sc; | |
500 | struct led_classdev led_cdev; | |
501 | enum ath_led_type led_type; | |
502 | char name[32]; | |
503 | bool registered; | |
f078f209 LR |
504 | }; |
505 | ||
394cf0a1 S |
506 | /* Rfkill */ |
507 | #define ATH_RFKILL_POLL_INTERVAL 2000 /* msecs */ | |
f078f209 | 508 | |
394cf0a1 S |
509 | struct ath_rfkill { |
510 | struct rfkill *rfkill; | |
511 | struct delayed_work rfkill_poll; | |
512 | char rfkill_name[32]; | |
f078f209 LR |
513 | }; |
514 | ||
394cf0a1 S |
515 | /********************/ |
516 | /* Main driver core */ | |
517 | /********************/ | |
f078f209 | 518 | |
394cf0a1 S |
519 | /* |
520 | * Default cache line size, in bytes. | |
521 | * Used when PCI device not fully initialized by bootrom/BIOS | |
522 | */ | |
523 | #define DEFAULT_CACHELINE 32 | |
524 | #define ATH_DEFAULT_NOISE_FLOOR -95 | |
525 | #define ATH_REGCLASSIDS_MAX 10 | |
526 | #define ATH_CABQ_READY_TIME 80 /* % of beacon interval */ | |
527 | #define ATH_MAX_SW_RETRIES 10 | |
528 | #define ATH_CHAN_MAX 255 | |
529 | #define IEEE80211_WEP_NKID 4 /* number of key ids */ | |
f1dc5600 | 530 | |
394cf0a1 S |
531 | /* |
532 | * The key cache is used for h/w cipher state and also for | |
533 | * tracking station state such as the current tx antenna. | |
534 | * We also setup a mapping table between key cache slot indices | |
535 | * and station state to short-circuit node lookups on rx. | |
536 | * Different parts have different size key caches. We handle | |
537 | * up to ATH_KEYMAX entries (could dynamically allocate state). | |
538 | */ | |
539 | #define ATH_KEYMAX 128 /* max key cache size we handle */ | |
540 | ||
541 | #define ATH_IF_ID_ANY 0xff | |
542 | #define ATH_TXPOWER_MAX 100 /* .5 dBm units */ | |
543 | #define ATH_RSSI_DUMMY_MARKER 0x127 | |
544 | #define ATH_RATE_DUMMY_MARKER 0 | |
545 | ||
546 | #define SC_OP_INVALID BIT(0) | |
547 | #define SC_OP_BEACONS BIT(1) | |
548 | #define SC_OP_RXAGGR BIT(2) | |
549 | #define SC_OP_TXAGGR BIT(3) | |
550 | #define SC_OP_CHAINMASK_UPDATE BIT(4) | |
551 | #define SC_OP_FULL_RESET BIT(5) | |
552 | #define SC_OP_NO_RESET BIT(6) | |
553 | #define SC_OP_PREAMBLE_SHORT BIT(7) | |
554 | #define SC_OP_PROTECT_ENABLE BIT(8) | |
555 | #define SC_OP_RXFLUSH BIT(9) | |
556 | #define SC_OP_LED_ASSOCIATED BIT(10) | |
557 | #define SC_OP_RFKILL_REGISTERED BIT(11) | |
558 | #define SC_OP_RFKILL_SW_BLOCKED BIT(12) | |
559 | #define SC_OP_RFKILL_HW_BLOCKED BIT(13) | |
560 | #define SC_OP_WAIT_FOR_BEACON BIT(14) | |
561 | #define SC_OP_LED_ON BIT(15) | |
0c98de65 | 562 | #define SC_OP_SCANNING BIT(16) |
394cf0a1 S |
563 | |
564 | struct ath_bus_ops { | |
565 | void (*read_cachesize)(struct ath_softc *sc, int *csz); | |
566 | void (*cleanup)(struct ath_softc *sc); | |
cbe61d8a | 567 | bool (*eeprom_read)(struct ath_hw *ah, u32 off, u16 *data); |
394cf0a1 S |
568 | }; |
569 | ||
570 | struct ath_softc { | |
571 | struct ieee80211_hw *hw; | |
572 | struct device *dev; | |
573 | struct tasklet_struct intr_tq; | |
574 | struct tasklet_struct bcon_tasklet; | |
cbe61d8a | 575 | struct ath_hw *sc_ah; |
394cf0a1 S |
576 | void __iomem *mem; |
577 | int irq; | |
578 | spinlock_t sc_resetlock; | |
579 | struct mutex mutex; | |
580 | ||
17d7904d | 581 | u8 curbssid[ETH_ALEN]; |
17d7904d S |
582 | u8 bssidmask[ETH_ALEN]; |
583 | u32 intrstatus; | |
394cf0a1 | 584 | u32 sc_flags; /* SC_OP_* */ |
17d7904d S |
585 | u16 curtxpow; |
586 | u16 curaid; | |
587 | u16 cachelsz; | |
588 | u8 nbcnvifs; | |
589 | u16 nvifs; | |
590 | u8 tx_chainmask; | |
591 | u8 rx_chainmask; | |
592 | u32 keymax; | |
593 | DECLARE_BITMAP(keymap, ATH_KEYMAX); | |
594 | u8 splitmic; | |
394cf0a1 | 595 | atomic_t ps_usecount; |
17d7904d S |
596 | enum ath9k_int imask; |
597 | enum ath9k_ht_extprotspacing ht_extprotspacing; | |
394cf0a1 S |
598 | enum ath9k_ht_macmode tx_chan_width; |
599 | ||
17d7904d | 600 | struct ath_config config; |
394cf0a1 S |
601 | struct ath_rx rx; |
602 | struct ath_tx tx; | |
603 | struct ath_beacon beacon; | |
17d7904d | 604 | struct ieee80211_vif *vifs[ATH_BCBUF]; |
394cf0a1 S |
605 | struct ieee80211_rate rates[IEEE80211_NUM_BANDS][ATH_RATE_MAX]; |
606 | struct ath_rate_table *hw_rate_table[ATH9K_MODE_MAX]; | |
607 | struct ath_rate_table *cur_rate_table; | |
608 | struct ieee80211_supported_band sbands[IEEE80211_NUM_BANDS]; | |
609 | ||
610 | struct ath_led radio_led; | |
611 | struct ath_led assoc_led; | |
612 | struct ath_led tx_led; | |
613 | struct ath_led rx_led; | |
614 | struct delayed_work ath_led_blink_work; | |
615 | int led_on_duration; | |
616 | int led_off_duration; | |
617 | int led_on_cnt; | |
618 | int led_off_cnt; | |
619 | ||
620 | struct ath_rfkill rf_kill; | |
17d7904d S |
621 | struct ath_ani ani; |
622 | struct ath9k_node_stats nodestats; | |
394cf0a1 | 623 | #ifdef CONFIG_ATH9K_DEBUG |
17d7904d | 624 | struct ath9k_debug debug; |
394cf0a1 S |
625 | #endif |
626 | struct ath_bus_ops *bus_ops; | |
627 | }; | |
628 | ||
629 | int ath_reset(struct ath_softc *sc, bool retry_tx); | |
630 | int ath_get_hal_qnum(u16 queue, struct ath_softc *sc); | |
631 | int ath_get_mac80211_qnum(u32 queue, struct ath_softc *sc); | |
632 | int ath_cabq_update(struct ath_softc *); | |
633 | ||
634 | static inline void ath_read_cachesize(struct ath_softc *sc, int *csz) | |
635 | { | |
636 | sc->bus_ops->read_cachesize(sc, csz); | |
637 | } | |
638 | ||
639 | static inline void ath_bus_cleanup(struct ath_softc *sc) | |
640 | { | |
641 | sc->bus_ops->cleanup(sc); | |
642 | } | |
643 | ||
644 | extern struct ieee80211_ops ath9k_ops; | |
645 | ||
646 | irqreturn_t ath_isr(int irq, void *dev); | |
647 | void ath_cleanup(struct ath_softc *sc); | |
648 | int ath_attach(u16 devid, struct ath_softc *sc); | |
649 | void ath_detach(struct ath_softc *sc); | |
650 | const char *ath_mac_bb_name(u32 mac_bb_version); | |
651 | const char *ath_rf_name(u16 rf_version); | |
652 | ||
653 | #ifdef CONFIG_PCI | |
654 | int ath_pci_init(void); | |
655 | void ath_pci_exit(void); | |
656 | #else | |
657 | static inline int ath_pci_init(void) { return 0; }; | |
658 | static inline void ath_pci_exit(void) {}; | |
f1dc5600 | 659 | #endif |
f1dc5600 | 660 | |
394cf0a1 S |
661 | #ifdef CONFIG_ATHEROS_AR71XX |
662 | int ath_ahb_init(void); | |
663 | void ath_ahb_exit(void); | |
664 | #else | |
665 | static inline int ath_ahb_init(void) { return 0; }; | |
666 | static inline void ath_ahb_exit(void) {}; | |
f078f209 | 667 | #endif |
394cf0a1 S |
668 | |
669 | static inline void ath9k_ps_wakeup(struct ath_softc *sc) | |
670 | { | |
671 | if (atomic_inc_return(&sc->ps_usecount) == 1) | |
2660b81a S |
672 | if (sc->sc_ah->power_mode != ATH9K_PM_AWAKE) { |
673 | sc->sc_ah->restore_mode = sc->sc_ah->power_mode; | |
394cf0a1 S |
674 | ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_AWAKE); |
675 | } | |
676 | } | |
677 | ||
678 | static inline void ath9k_ps_restore(struct ath_softc *sc) | |
679 | { | |
680 | if (atomic_dec_and_test(&sc->ps_usecount)) | |
541d8dd5 VN |
681 | if ((sc->hw->conf.flags & IEEE80211_CONF_PS) && |
682 | !(sc->sc_flags & SC_OP_WAIT_FOR_BEACON)) | |
394cf0a1 | 683 | ath9k_hw_setpower(sc->sc_ah, |
2660b81a | 684 | sc->sc_ah->restore_mode); |
394cf0a1 | 685 | } |
0c98de65 | 686 | |
394cf0a1 | 687 | #endif /* ATH9K_H */ |