Commit | Line | Data |
---|---|---|
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> | |
394cf0a1 S |
24 | |
25 | #include "hw.h" | |
26 | #include "rc.h" | |
27 | #include "debug.h" | |
28 | ||
29 | struct ath_node; | |
30 | ||
31 | /* Macro to expand scalars to 64-bit objects */ | |
32 | ||
33 | #define ito64(x) (sizeof(x) == 8) ? \ | |
34 | (((unsigned long long int)(x)) & (0xff)) : \ | |
35 | (sizeof(x) == 16) ? \ | |
36 | (((unsigned long long int)(x)) & 0xffff) : \ | |
37 | ((sizeof(x) == 32) ? \ | |
38 | (((unsigned long long int)(x)) & 0xffffffff) : \ | |
39 | (unsigned long long int)(x)) | |
40 | ||
41 | /* increment with wrap-around */ | |
42 | #define INCR(_l, _sz) do { \ | |
43 | (_l)++; \ | |
44 | (_l) &= ((_sz) - 1); \ | |
45 | } while (0) | |
46 | ||
47 | /* decrement with wrap-around */ | |
48 | #define DECR(_l, _sz) do { \ | |
49 | (_l)--; \ | |
50 | (_l) &= ((_sz) - 1); \ | |
51 | } while (0) | |
52 | ||
53 | #define A_MAX(a, b) ((a) > (b) ? (a) : (b)) | |
54 | ||
0ee904c3 | 55 | #define ASSERT(exp) BUG_ON(!(exp)) |
394cf0a1 S |
56 | |
57 | #define TSF_TO_TU(_h,_l) \ | |
58 | ((((u32)(_h)) << 22) | (((u32)(_l)) >> 10)) | |
59 | ||
60 | #define ATH_TXQ_SETUP(sc, i) ((sc)->tx.txqsetup & (1<<i)) | |
61 | ||
62 | static const u8 ath_bcast_mac[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; | |
63 | ||
64 | struct ath_config { | |
65 | u32 ath_aggr_prot; | |
66 | u16 txpowlimit; | |
67 | u8 cabqReadytime; | |
394cf0a1 S |
68 | }; |
69 | ||
70 | /*************************/ | |
71 | /* Descriptor Management */ | |
72 | /*************************/ | |
73 | ||
74 | #define ATH_TXBUF_RESET(_bf) do { \ | |
a119cc49 | 75 | (_bf)->bf_stale = false; \ |
394cf0a1 S |
76 | (_bf)->bf_lastbf = NULL; \ |
77 | (_bf)->bf_next = NULL; \ | |
78 | memset(&((_bf)->bf_state), 0, \ | |
79 | sizeof(struct ath_buf_state)); \ | |
80 | } while (0) | |
81 | ||
a119cc49 S |
82 | #define ATH_RXBUF_RESET(_bf) do { \ |
83 | (_bf)->bf_stale = false; \ | |
84 | } while (0) | |
85 | ||
394cf0a1 S |
86 | /** |
87 | * enum buffer_type - Buffer type flags | |
88 | * | |
89 | * @BUF_HT: Send this buffer using HT capabilities | |
90 | * @BUF_AMPDU: This buffer is an ampdu, as part of an aggregate (during TX) | |
91 | * @BUF_AGGR: Indicates whether the buffer can be aggregated | |
92 | * (used in aggregation scheduling) | |
93 | * @BUF_RETRY: Indicates whether the buffer is retried | |
94 | * @BUF_XRETRY: To denote excessive retries of the buffer | |
95 | */ | |
96 | enum buffer_type { | |
97 | BUF_HT = BIT(1), | |
98 | BUF_AMPDU = BIT(2), | |
99 | BUF_AGGR = BIT(3), | |
100 | BUF_RETRY = BIT(4), | |
101 | BUF_XRETRY = BIT(5), | |
102 | }; | |
103 | ||
104 | struct ath_buf_state { | |
17d7904d S |
105 | int bfs_nframes; |
106 | u16 bfs_al; | |
107 | u16 bfs_frmlen; | |
108 | int bfs_seqno; | |
109 | int bfs_tidno; | |
110 | int bfs_retries; | |
a119cc49 | 111 | u8 bf_type; |
394cf0a1 S |
112 | u32 bfs_keyix; |
113 | enum ath9k_key_type bfs_keytype; | |
114 | }; | |
115 | ||
116 | #define bf_nframes bf_state.bfs_nframes | |
117 | #define bf_al bf_state.bfs_al | |
118 | #define bf_frmlen bf_state.bfs_frmlen | |
119 | #define bf_retries bf_state.bfs_retries | |
120 | #define bf_seqno bf_state.bfs_seqno | |
121 | #define bf_tidno bf_state.bfs_tidno | |
122 | #define bf_keyix bf_state.bfs_keyix | |
123 | #define bf_keytype bf_state.bfs_keytype | |
124 | #define bf_isht(bf) (bf->bf_state.bf_type & BUF_HT) | |
125 | #define bf_isampdu(bf) (bf->bf_state.bf_type & BUF_AMPDU) | |
126 | #define bf_isaggr(bf) (bf->bf_state.bf_type & BUF_AGGR) | |
127 | #define bf_isretried(bf) (bf->bf_state.bf_type & BUF_RETRY) | |
128 | #define bf_isxretried(bf) (bf->bf_state.bf_type & BUF_XRETRY) | |
f078f209 | 129 | |
394cf0a1 S |
130 | struct ath_buf { |
131 | struct list_head list; | |
132 | struct ath_buf *bf_lastbf; /* last buf of this unit (a frame or | |
133 | an aggregate) */ | |
134 | struct ath_buf *bf_next; /* next subframe in the aggregate */ | |
a22be22a | 135 | struct sk_buff *bf_mpdu; /* enclosing frame structure */ |
394cf0a1 S |
136 | struct ath_desc *bf_desc; /* virtual addr of desc */ |
137 | dma_addr_t bf_daddr; /* physical addr of desc */ | |
138 | dma_addr_t bf_buf_addr; /* physical addr of data buffer */ | |
a119cc49 | 139 | bool bf_stale; |
17d7904d S |
140 | u16 bf_flags; |
141 | struct ath_buf_state bf_state; | |
394cf0a1 S |
142 | dma_addr_t bf_dmacontext; |
143 | }; | |
144 | ||
394cf0a1 | 145 | struct ath_descdma { |
17d7904d S |
146 | struct ath_desc *dd_desc; |
147 | dma_addr_t dd_desc_paddr; | |
148 | u32 dd_desc_len; | |
149 | struct ath_buf *dd_bufptr; | |
394cf0a1 S |
150 | }; |
151 | ||
152 | int ath_descdma_setup(struct ath_softc *sc, struct ath_descdma *dd, | |
153 | struct list_head *head, const char *name, | |
154 | int nbuf, int ndesc); | |
155 | void ath_descdma_cleanup(struct ath_softc *sc, struct ath_descdma *dd, | |
156 | struct list_head *head); | |
157 | ||
158 | /***********/ | |
159 | /* RX / TX */ | |
160 | /***********/ | |
161 | ||
162 | #define ATH_MAX_ANTENNA 3 | |
163 | #define ATH_RXBUF 512 | |
164 | #define WME_NUM_TID 16 | |
165 | #define ATH_TXBUF 512 | |
166 | #define ATH_TXMAXTRY 13 | |
167 | #define ATH_11N_TXMAXTRY 10 | |
168 | #define ATH_MGT_TXMAXTRY 4 | |
169 | #define WME_BA_BMP_SIZE 64 | |
170 | #define WME_MAX_BA WME_BA_BMP_SIZE | |
171 | #define ATH_TID_MAX_BUFS (2 * WME_MAX_BA) | |
172 | ||
173 | #define TID_TO_WME_AC(_tid) \ | |
174 | ((((_tid) == 0) || ((_tid) == 3)) ? WME_AC_BE : \ | |
175 | (((_tid) == 1) || ((_tid) == 2)) ? WME_AC_BK : \ | |
176 | (((_tid) == 4) || ((_tid) == 5)) ? WME_AC_VI : \ | |
177 | WME_AC_VO) | |
178 | ||
179 | #define WME_AC_BE 0 | |
180 | #define WME_AC_BK 1 | |
181 | #define WME_AC_VI 2 | |
182 | #define WME_AC_VO 3 | |
183 | #define WME_NUM_AC 4 | |
184 | ||
185 | #define ADDBA_EXCHANGE_ATTEMPTS 10 | |
186 | #define ATH_AGGR_DELIM_SZ 4 | |
187 | #define ATH_AGGR_MINPLEN 256 /* in bytes, minimum packet length */ | |
188 | /* number of delimiters for encryption padding */ | |
189 | #define ATH_AGGR_ENCRYPTDELIM 10 | |
190 | /* minimum h/w qdepth to be sustained to maximize aggregation */ | |
191 | #define ATH_AGGR_MIN_QDEPTH 2 | |
192 | #define ATH_AMPDU_SUBFRAME_DEFAULT 32 | |
193 | #define ATH_AMPDU_LIMIT_MAX (64 * 1024 - 1) | |
194 | #define ATH_AMPDU_LIMIT_DEFAULT ATH_AMPDU_LIMIT_MAX | |
195 | ||
196 | #define IEEE80211_SEQ_SEQ_SHIFT 4 | |
197 | #define IEEE80211_SEQ_MAX 4096 | |
198 | #define IEEE80211_MIN_AMPDU_BUF 0x8 | |
199 | #define IEEE80211_HTCAP_MAXRXAMPDU_FACTOR 13 | |
200 | #define IEEE80211_WEP_IVLEN 3 | |
201 | #define IEEE80211_WEP_KIDLEN 1 | |
202 | #define IEEE80211_WEP_CRCLEN 4 | |
203 | #define IEEE80211_MAX_MPDU_LEN (3840 + FCS_LEN + \ | |
204 | (IEEE80211_WEP_IVLEN + \ | |
205 | IEEE80211_WEP_KIDLEN + \ | |
206 | IEEE80211_WEP_CRCLEN)) | |
207 | ||
208 | /* return whether a bit at index _n in bitmap _bm is set | |
209 | * _sz is the size of the bitmap */ | |
210 | #define ATH_BA_ISSET(_bm, _n) (((_n) < (WME_BA_BMP_SIZE)) && \ | |
211 | ((_bm)[(_n) >> 5] & (1 << ((_n) & 31)))) | |
212 | ||
213 | /* return block-ack bitmap index given sequence and starting sequence */ | |
214 | #define ATH_BA_INDEX(_st, _seq) (((_seq) - (_st)) & (IEEE80211_SEQ_MAX - 1)) | |
215 | ||
216 | /* returns delimiter padding required given the packet length */ | |
217 | #define ATH_AGGR_GET_NDELIM(_len) \ | |
218 | (((((_len) + ATH_AGGR_DELIM_SZ) < ATH_AGGR_MINPLEN) ? \ | |
219 | (ATH_AGGR_MINPLEN - (_len) - ATH_AGGR_DELIM_SZ) : 0) >> 2) | |
220 | ||
221 | #define BAW_WITHIN(_start, _bawsz, _seqno) \ | |
222 | ((((_seqno) - (_start)) & 4095) < (_bawsz)) | |
223 | ||
224 | #define ATH_DS_BA_SEQ(_ds) ((_ds)->ds_us.tx.ts_seqnum) | |
225 | #define ATH_DS_BA_BITMAP(_ds) (&(_ds)->ds_us.tx.ba_low) | |
226 | #define ATH_DS_TX_BA(_ds) ((_ds)->ds_us.tx.ts_flags & ATH9K_TX_BA) | |
227 | #define ATH_AN_2_TID(_an, _tidno) (&(_an)->tid[(_tidno)]) | |
228 | ||
229 | enum ATH_AGGR_STATUS { | |
230 | ATH_AGGR_DONE, | |
231 | ATH_AGGR_BAW_CLOSED, | |
232 | ATH_AGGR_LIMITED, | |
233 | }; | |
234 | ||
235 | struct ath_txq { | |
17d7904d S |
236 | u32 axq_qnum; |
237 | u32 *axq_link; | |
238 | struct list_head axq_q; | |
394cf0a1 | 239 | spinlock_t axq_lock; |
17d7904d S |
240 | u32 axq_depth; |
241 | u8 axq_aggr_depth; | |
242 | u32 axq_totalqueued; | |
243 | bool stopped; | |
244 | struct ath_buf *axq_linkbuf; | |
394cf0a1 S |
245 | |
246 | /* first desc of the last descriptor that contains CTS */ | |
247 | struct ath_desc *axq_lastdsWithCTS; | |
248 | ||
249 | /* final desc of the gating desc that determines whether | |
250 | lastdsWithCTS has been DMA'ed or not */ | |
251 | struct ath_desc *axq_gatingds; | |
252 | ||
253 | struct list_head axq_acq; | |
254 | }; | |
255 | ||
256 | #define AGGR_CLEANUP BIT(1) | |
257 | #define AGGR_ADDBA_COMPLETE BIT(2) | |
258 | #define AGGR_ADDBA_PROGRESS BIT(3) | |
259 | ||
394cf0a1 | 260 | struct ath_atx_tid { |
17d7904d S |
261 | struct list_head list; |
262 | struct list_head buf_q; | |
394cf0a1 S |
263 | struct ath_node *an; |
264 | struct ath_atx_ac *ac; | |
17d7904d | 265 | struct ath_buf *tx_buf[ATH_TID_MAX_BUFS]; |
394cf0a1 S |
266 | u16 seq_start; |
267 | u16 seq_next; | |
268 | u16 baw_size; | |
269 | int tidno; | |
17d7904d S |
270 | int baw_head; /* first un-acked tx buffer */ |
271 | int baw_tail; /* next unused tx buffer slot */ | |
394cf0a1 S |
272 | int sched; |
273 | int paused; | |
274 | u8 state; | |
394cf0a1 S |
275 | }; |
276 | ||
394cf0a1 | 277 | struct ath_atx_ac { |
17d7904d S |
278 | int sched; |
279 | int qnum; | |
280 | struct list_head list; | |
281 | struct list_head tid_q; | |
394cf0a1 S |
282 | }; |
283 | ||
394cf0a1 S |
284 | struct ath_tx_control { |
285 | struct ath_txq *txq; | |
286 | int if_id; | |
f0ed85c6 | 287 | enum ath9k_internal_frame_type frame_type; |
394cf0a1 S |
288 | }; |
289 | ||
394cf0a1 S |
290 | #define ATH_TX_ERROR 0x01 |
291 | #define ATH_TX_XRETRY 0x02 | |
292 | #define ATH_TX_BAR 0x04 | |
394cf0a1 | 293 | |
394cf0a1 S |
294 | struct ath_node { |
295 | struct ath_softc *an_sc; | |
296 | struct ath_atx_tid tid[WME_NUM_TID]; | |
297 | struct ath_atx_ac ac[WME_NUM_AC]; | |
298 | u16 maxampdu; | |
299 | u8 mpdudensity; | |
300 | }; | |
301 | ||
302 | struct ath_tx { | |
303 | u16 seq_no; | |
304 | u32 txqsetup; | |
305 | int hwq_map[ATH9K_WME_AC_VO+1]; | |
306 | spinlock_t txbuflock; | |
307 | struct list_head txbuf; | |
308 | struct ath_txq txq[ATH9K_NUM_TX_QUEUES]; | |
309 | struct ath_descdma txdma; | |
310 | }; | |
311 | ||
312 | struct ath_rx { | |
313 | u8 defant; | |
314 | u8 rxotherant; | |
315 | u32 *rxlink; | |
316 | int bufsize; | |
317 | unsigned int rxfilter; | |
318 | spinlock_t rxflushlock; | |
319 | spinlock_t rxbuflock; | |
320 | struct list_head rxbuf; | |
321 | struct ath_descdma rxdma; | |
322 | }; | |
323 | ||
324 | int ath_startrecv(struct ath_softc *sc); | |
325 | bool ath_stoprecv(struct ath_softc *sc); | |
326 | void ath_flushrecv(struct ath_softc *sc); | |
327 | u32 ath_calcrxfilter(struct ath_softc *sc); | |
328 | int ath_rx_init(struct ath_softc *sc, int nbufs); | |
329 | void ath_rx_cleanup(struct ath_softc *sc); | |
330 | int ath_rx_tasklet(struct ath_softc *sc, int flush); | |
331 | struct ath_txq *ath_txq_setup(struct ath_softc *sc, int qtype, int subtype); | |
332 | void ath_tx_cleanupq(struct ath_softc *sc, struct ath_txq *txq); | |
333 | int ath_tx_setup(struct ath_softc *sc, int haltype); | |
334 | void ath_drain_all_txq(struct ath_softc *sc, bool retry_tx); | |
335 | void ath_draintxq(struct ath_softc *sc, | |
336 | struct ath_txq *txq, bool retry_tx); | |
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); | |
797fe5cb | 341 | void ath_tx_cleanup(struct ath_softc *sc); |
394cf0a1 S |
342 | struct ath_txq *ath_test_get_txq(struct ath_softc *sc, struct sk_buff *skb); |
343 | int ath_txq_update(struct ath_softc *sc, int qnum, | |
344 | struct ath9k_tx_queue_info *q); | |
c52f33d0 | 345 | int ath_tx_start(struct ieee80211_hw *hw, struct sk_buff *skb, |
394cf0a1 S |
346 | struct ath_tx_control *txctl); |
347 | void ath_tx_tasklet(struct ath_softc *sc); | |
c52f33d0 | 348 | void ath_tx_cabq(struct ieee80211_hw *hw, struct sk_buff *skb); |
394cf0a1 S |
349 | bool ath_tx_aggr_check(struct ath_softc *sc, struct ath_node *an, u8 tidno); |
350 | int ath_tx_aggr_start(struct ath_softc *sc, struct ieee80211_sta *sta, | |
351 | u16 tid, u16 *ssn); | |
352 | int ath_tx_aggr_stop(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid); | |
353 | void ath_tx_aggr_resume(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid); | |
354 | ||
355 | /********/ | |
17d7904d | 356 | /* VIFs */ |
394cf0a1 | 357 | /********/ |
f078f209 | 358 | |
17d7904d | 359 | struct ath_vif { |
394cf0a1 | 360 | int av_bslot; |
4ed96f04 | 361 | __le64 tsf_adjust; /* TSF adjustment for staggered beacons */ |
394cf0a1 S |
362 | enum nl80211_iftype av_opmode; |
363 | struct ath_buf *av_bcbuf; | |
364 | struct ath_tx_control av_btxctl; | |
f0ed85c6 | 365 | u8 bssid[ETH_ALEN]; /* current BSSID from config_interface */ |
f078f209 LR |
366 | }; |
367 | ||
394cf0a1 S |
368 | /*******************/ |
369 | /* Beacon Handling */ | |
370 | /*******************/ | |
f078f209 | 371 | |
394cf0a1 S |
372 | /* |
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. | |
376 | */ | |
377 | #define BSTUCK_THRESH (9 * ATH_BCBUF) | |
4ed96f04 | 378 | #define ATH_BCBUF 4 |
394cf0a1 S |
379 | #define ATH_DEFAULT_BINTVAL 100 /* TU */ |
380 | #define ATH_DEFAULT_BMISS_LIMIT 10 | |
381 | #define IEEE80211_MS_TO_TU(x) (((x) * 1000) / 1024) | |
382 | ||
383 | struct ath_beacon_config { | |
384 | u16 beacon_interval; | |
385 | u16 listen_interval; | |
386 | u16 dtim_period; | |
387 | u16 bmiss_timeout; | |
388 | u8 dtim_count; | |
394cf0a1 S |
389 | }; |
390 | ||
391 | struct ath_beacon { | |
392 | enum { | |
393 | OK, /* no change needed */ | |
394 | UPDATE, /* update pending */ | |
395 | COMMIT /* beacon sent, commit change */ | |
396 | } updateslot; /* slot time update fsm */ | |
397 | ||
398 | u32 beaconq; | |
399 | u32 bmisscnt; | |
400 | u32 ast_be_xmit; | |
401 | u64 bc_tstamp; | |
2c3db3d5 | 402 | struct ieee80211_vif *bslot[ATH_BCBUF]; |
c52f33d0 | 403 | struct ath_wiphy *bslot_aphy[ATH_BCBUF]; |
394cf0a1 S |
404 | int slottime; |
405 | int slotupdate; | |
406 | struct ath9k_tx_queue_info beacon_qi; | |
407 | struct ath_descdma bdma; | |
408 | struct ath_txq *cabq; | |
409 | struct list_head bbuf; | |
410 | }; | |
411 | ||
9fc9ab0a | 412 | void ath_beacon_tasklet(unsigned long data); |
2c3db3d5 | 413 | void ath_beacon_config(struct ath_softc *sc, struct ieee80211_vif *vif); |
cbe61d8a | 414 | int ath_beaconq_setup(struct ath_hw *ah); |
c52f33d0 | 415 | int ath_beacon_alloc(struct ath_wiphy *aphy, struct ieee80211_vif *vif); |
17d7904d | 416 | void ath_beacon_return(struct ath_softc *sc, struct ath_vif *avp); |
394cf0a1 S |
417 | |
418 | /*******/ | |
419 | /* ANI */ | |
420 | /*******/ | |
f078f209 | 421 | |
20977d3e S |
422 | #define ATH_STA_SHORT_CALINTERVAL 1000 /* 1 second */ |
423 | #define ATH_AP_SHORT_CALINTERVAL 100 /* 100 ms */ | |
424 | #define ATH_ANI_POLLINTERVAL 100 /* 100 ms */ | |
425 | #define ATH_LONG_CALINTERVAL 30000 /* 30 seconds */ | |
426 | #define ATH_RESTART_CALINTERVAL 1200000 /* 20 minutes */ | |
f078f209 | 427 | |
394cf0a1 | 428 | struct ath_ani { |
17d7904d S |
429 | bool caldone; |
430 | int16_t noise_floor; | |
431 | unsigned int longcal_timer; | |
432 | unsigned int shortcal_timer; | |
433 | unsigned int resetcal_timer; | |
434 | unsigned int checkani_timer; | |
394cf0a1 | 435 | struct timer_list timer; |
f078f209 LR |
436 | }; |
437 | ||
394cf0a1 S |
438 | /********************/ |
439 | /* LED Control */ | |
440 | /********************/ | |
f078f209 | 441 | |
394cf0a1 S |
442 | #define ATH_LED_PIN 1 |
443 | #define ATH_LED_ON_DURATION_IDLE 350 /* in msecs */ | |
444 | #define ATH_LED_OFF_DURATION_IDLE 250 /* in msecs */ | |
f078f209 | 445 | |
394cf0a1 S |
446 | enum ath_led_type { |
447 | ATH_LED_RADIO, | |
448 | ATH_LED_ASSOC, | |
449 | ATH_LED_TX, | |
450 | ATH_LED_RX | |
f078f209 LR |
451 | }; |
452 | ||
394cf0a1 S |
453 | struct ath_led { |
454 | struct ath_softc *sc; | |
455 | struct led_classdev led_cdev; | |
456 | enum ath_led_type led_type; | |
457 | char name[32]; | |
458 | bool registered; | |
f078f209 LR |
459 | }; |
460 | ||
394cf0a1 S |
461 | /********************/ |
462 | /* Main driver core */ | |
463 | /********************/ | |
f078f209 | 464 | |
394cf0a1 S |
465 | /* |
466 | * Default cache line size, in bytes. | |
467 | * Used when PCI device not fully initialized by bootrom/BIOS | |
468 | */ | |
469 | #define DEFAULT_CACHELINE 32 | |
470 | #define ATH_DEFAULT_NOISE_FLOOR -95 | |
471 | #define ATH_REGCLASSIDS_MAX 10 | |
472 | #define ATH_CABQ_READY_TIME 80 /* % of beacon interval */ | |
473 | #define ATH_MAX_SW_RETRIES 10 | |
474 | #define ATH_CHAN_MAX 255 | |
475 | #define IEEE80211_WEP_NKID 4 /* number of key ids */ | |
f1dc5600 | 476 | |
394cf0a1 S |
477 | /* |
478 | * The key cache is used for h/w cipher state and also for | |
479 | * tracking station state such as the current tx antenna. | |
480 | * We also setup a mapping table between key cache slot indices | |
481 | * and station state to short-circuit node lookups on rx. | |
482 | * Different parts have different size key caches. We handle | |
483 | * up to ATH_KEYMAX entries (could dynamically allocate state). | |
484 | */ | |
485 | #define ATH_KEYMAX 128 /* max key cache size we handle */ | |
486 | ||
394cf0a1 S |
487 | #define ATH_TXPOWER_MAX 100 /* .5 dBm units */ |
488 | #define ATH_RSSI_DUMMY_MARKER 0x127 | |
489 | #define ATH_RATE_DUMMY_MARKER 0 | |
490 | ||
b238e90e S |
491 | #define SC_OP_INVALID BIT(0) |
492 | #define SC_OP_BEACONS BIT(1) | |
493 | #define SC_OP_RXAGGR BIT(2) | |
494 | #define SC_OP_TXAGGR BIT(3) | |
bdbdf46d S |
495 | #define SC_OP_FULL_RESET BIT(4) |
496 | #define SC_OP_PREAMBLE_SHORT BIT(5) | |
497 | #define SC_OP_PROTECT_ENABLE BIT(6) | |
498 | #define SC_OP_RXFLUSH BIT(7) | |
499 | #define SC_OP_LED_ASSOCIATED BIT(8) | |
bdbdf46d S |
500 | #define SC_OP_WAIT_FOR_BEACON BIT(12) |
501 | #define SC_OP_LED_ON BIT(13) | |
502 | #define SC_OP_SCANNING BIT(14) | |
503 | #define SC_OP_TSF_RESET BIT(15) | |
cc65965c | 504 | #define SC_OP_WAIT_FOR_CAB BIT(16) |
9a23f9ca JM |
505 | #define SC_OP_WAIT_FOR_PSPOLL_DATA BIT(17) |
506 | #define SC_OP_WAIT_FOR_TX_ACK BIT(18) | |
ccdfeab6 | 507 | #define SC_OP_BEACON_SYNC BIT(19) |
394cf0a1 S |
508 | |
509 | struct ath_bus_ops { | |
510 | void (*read_cachesize)(struct ath_softc *sc, int *csz); | |
511 | void (*cleanup)(struct ath_softc *sc); | |
cbe61d8a | 512 | bool (*eeprom_read)(struct ath_hw *ah, u32 off, u16 *data); |
394cf0a1 S |
513 | }; |
514 | ||
bce048d7 JM |
515 | struct ath_wiphy; |
516 | ||
394cf0a1 S |
517 | struct ath_softc { |
518 | struct ieee80211_hw *hw; | |
519 | struct device *dev; | |
c52f33d0 JM |
520 | |
521 | spinlock_t wiphy_lock; /* spinlock to protect ath_wiphy data */ | |
bce048d7 | 522 | struct ath_wiphy *pri_wiphy; |
c52f33d0 JM |
523 | struct ath_wiphy **sec_wiphy; /* secondary wiphys (virtual radios); may |
524 | * have NULL entries */ | |
525 | int num_sec_wiphy; /* number of sec_wiphy pointers in the array */ | |
0e2dedf9 JM |
526 | int chan_idx; |
527 | int chan_is_ht; | |
528 | struct ath_wiphy *next_wiphy; | |
529 | struct work_struct chan_work; | |
7ec3e514 JM |
530 | int wiphy_select_failures; |
531 | unsigned long wiphy_select_first_fail; | |
f98c3bd2 JM |
532 | struct delayed_work wiphy_work; |
533 | unsigned long wiphy_scheduler_int; | |
534 | int wiphy_scheduler_index; | |
0e2dedf9 | 535 | |
394cf0a1 S |
536 | struct tasklet_struct intr_tq; |
537 | struct tasklet_struct bcon_tasklet; | |
cbe61d8a | 538 | struct ath_hw *sc_ah; |
394cf0a1 S |
539 | void __iomem *mem; |
540 | int irq; | |
541 | spinlock_t sc_resetlock; | |
2d6a5e95 | 542 | spinlock_t sc_serial_rw; |
394cf0a1 S |
543 | struct mutex mutex; |
544 | ||
17d7904d | 545 | u8 curbssid[ETH_ALEN]; |
17d7904d S |
546 | u8 bssidmask[ETH_ALEN]; |
547 | u32 intrstatus; | |
394cf0a1 | 548 | u32 sc_flags; /* SC_OP_* */ |
17d7904d S |
549 | u16 curtxpow; |
550 | u16 curaid; | |
551 | u16 cachelsz; | |
552 | u8 nbcnvifs; | |
553 | u16 nvifs; | |
554 | u8 tx_chainmask; | |
555 | u8 rx_chainmask; | |
556 | u32 keymax; | |
557 | DECLARE_BITMAP(keymap, ATH_KEYMAX); | |
558 | u8 splitmic; | |
394cf0a1 | 559 | atomic_t ps_usecount; |
17d7904d S |
560 | enum ath9k_int imask; |
561 | enum ath9k_ht_extprotspacing ht_extprotspacing; | |
394cf0a1 S |
562 | enum ath9k_ht_macmode tx_chan_width; |
563 | ||
17d7904d | 564 | struct ath_config config; |
394cf0a1 S |
565 | struct ath_rx rx; |
566 | struct ath_tx tx; | |
567 | struct ath_beacon beacon; | |
394cf0a1 | 568 | struct ieee80211_rate rates[IEEE80211_NUM_BANDS][ATH_RATE_MAX]; |
4f0fc7c3 LR |
569 | const struct ath_rate_table *hw_rate_table[ATH9K_MODE_MAX]; |
570 | const struct ath_rate_table *cur_rate_table; | |
394cf0a1 S |
571 | struct ieee80211_supported_band sbands[IEEE80211_NUM_BANDS]; |
572 | ||
573 | struct ath_led radio_led; | |
574 | struct ath_led assoc_led; | |
575 | struct ath_led tx_led; | |
576 | struct ath_led rx_led; | |
577 | struct delayed_work ath_led_blink_work; | |
578 | int led_on_duration; | |
579 | int led_off_duration; | |
580 | int led_on_cnt; | |
581 | int led_off_cnt; | |
582 | ||
57c4d7b4 JB |
583 | int beacon_interval; |
584 | ||
17d7904d S |
585 | struct ath_ani ani; |
586 | struct ath9k_node_stats nodestats; | |
394cf0a1 | 587 | #ifdef CONFIG_ATH9K_DEBUG |
17d7904d | 588 | struct ath9k_debug debug; |
394cf0a1 S |
589 | #endif |
590 | struct ath_bus_ops *bus_ops; | |
6b96f93e | 591 | struct ath_beacon_config cur_beacon_conf; |
394cf0a1 S |
592 | }; |
593 | ||
bce048d7 JM |
594 | struct ath_wiphy { |
595 | struct ath_softc *sc; /* shared for all virtual wiphys */ | |
596 | struct ieee80211_hw *hw; | |
f0ed85c6 | 597 | enum ath_wiphy_state { |
9580a222 | 598 | ATH_WIPHY_INACTIVE, |
f0ed85c6 JM |
599 | ATH_WIPHY_ACTIVE, |
600 | ATH_WIPHY_PAUSING, | |
601 | ATH_WIPHY_PAUSED, | |
8089cc47 | 602 | ATH_WIPHY_SCAN, |
f0ed85c6 | 603 | } state; |
0e2dedf9 JM |
604 | int chan_idx; |
605 | int chan_is_ht; | |
bce048d7 JM |
606 | }; |
607 | ||
394cf0a1 S |
608 | int ath_reset(struct ath_softc *sc, bool retry_tx); |
609 | int ath_get_hal_qnum(u16 queue, struct ath_softc *sc); | |
610 | int ath_get_mac80211_qnum(u32 queue, struct ath_softc *sc); | |
611 | int ath_cabq_update(struct ath_softc *); | |
612 | ||
613 | static inline void ath_read_cachesize(struct ath_softc *sc, int *csz) | |
614 | { | |
615 | sc->bus_ops->read_cachesize(sc, csz); | |
616 | } | |
617 | ||
618 | static inline void ath_bus_cleanup(struct ath_softc *sc) | |
619 | { | |
620 | sc->bus_ops->cleanup(sc); | |
621 | } | |
622 | ||
623 | extern struct ieee80211_ops ath9k_ops; | |
624 | ||
625 | irqreturn_t ath_isr(int irq, void *dev); | |
626 | void ath_cleanup(struct ath_softc *sc); | |
627 | int ath_attach(u16 devid, struct ath_softc *sc); | |
628 | void ath_detach(struct ath_softc *sc); | |
629 | const char *ath_mac_bb_name(u32 mac_bb_version); | |
630 | const char *ath_rf_name(u16 rf_version); | |
c52f33d0 | 631 | void ath_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw); |
0e2dedf9 JM |
632 | void ath9k_update_ichannel(struct ath_softc *sc, struct ieee80211_hw *hw, |
633 | struct ath9k_channel *ichan); | |
634 | void ath_update_chainmask(struct ath_softc *sc, int is_ht); | |
635 | int ath_set_channel(struct ath_softc *sc, struct ieee80211_hw *hw, | |
636 | struct ath9k_channel *hchan); | |
7ec3e514 JM |
637 | void ath_radio_enable(struct ath_softc *sc); |
638 | void ath_radio_disable(struct ath_softc *sc); | |
394cf0a1 S |
639 | |
640 | #ifdef CONFIG_PCI | |
641 | int ath_pci_init(void); | |
642 | void ath_pci_exit(void); | |
643 | #else | |
644 | static inline int ath_pci_init(void) { return 0; }; | |
645 | static inline void ath_pci_exit(void) {}; | |
f1dc5600 | 646 | #endif |
f1dc5600 | 647 | |
394cf0a1 S |
648 | #ifdef CONFIG_ATHEROS_AR71XX |
649 | int ath_ahb_init(void); | |
650 | void ath_ahb_exit(void); | |
651 | #else | |
652 | static inline int ath_ahb_init(void) { return 0; }; | |
653 | static inline void ath_ahb_exit(void) {}; | |
f078f209 | 654 | #endif |
394cf0a1 S |
655 | |
656 | static inline void ath9k_ps_wakeup(struct ath_softc *sc) | |
657 | { | |
658 | if (atomic_inc_return(&sc->ps_usecount) == 1) | |
2660b81a S |
659 | if (sc->sc_ah->power_mode != ATH9K_PM_AWAKE) { |
660 | sc->sc_ah->restore_mode = sc->sc_ah->power_mode; | |
394cf0a1 S |
661 | ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_AWAKE); |
662 | } | |
663 | } | |
664 | ||
665 | static inline void ath9k_ps_restore(struct ath_softc *sc) | |
666 | { | |
667 | if (atomic_dec_and_test(&sc->ps_usecount)) | |
541d8dd5 | 668 | if ((sc->hw->conf.flags & IEEE80211_CONF_PS) && |
9a23f9ca | 669 | !(sc->sc_flags & (SC_OP_WAIT_FOR_BEACON | |
7fe96a16 | 670 | SC_OP_WAIT_FOR_CAB | |
9a23f9ca JM |
671 | SC_OP_WAIT_FOR_PSPOLL_DATA | |
672 | SC_OP_WAIT_FOR_TX_ACK))) | |
394cf0a1 | 673 | ath9k_hw_setpower(sc->sc_ah, |
2660b81a | 674 | sc->sc_ah->restore_mode); |
394cf0a1 | 675 | } |
0c98de65 | 676 | |
8ca21f01 JM |
677 | |
678 | void ath9k_set_bssid_mask(struct ieee80211_hw *hw); | |
c52f33d0 JM |
679 | int ath9k_wiphy_add(struct ath_softc *sc); |
680 | int ath9k_wiphy_del(struct ath_wiphy *aphy); | |
f0ed85c6 JM |
681 | void ath9k_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb); |
682 | int ath9k_wiphy_pause(struct ath_wiphy *aphy); | |
683 | int ath9k_wiphy_unpause(struct ath_wiphy *aphy); | |
0e2dedf9 | 684 | int ath9k_wiphy_select(struct ath_wiphy *aphy); |
f98c3bd2 | 685 | void ath9k_wiphy_set_scheduler(struct ath_softc *sc, unsigned int msec_int); |
0e2dedf9 | 686 | void ath9k_wiphy_chan_work(struct work_struct *work); |
9580a222 | 687 | bool ath9k_wiphy_started(struct ath_softc *sc); |
18eb62f8 JM |
688 | void ath9k_wiphy_pause_all_forced(struct ath_softc *sc, |
689 | struct ath_wiphy *selected); | |
8089cc47 | 690 | bool ath9k_wiphy_scanning(struct ath_softc *sc); |
f98c3bd2 | 691 | void ath9k_wiphy_work(struct work_struct *work); |
8ca21f01 | 692 | |
fb4a3d35 GJ |
693 | void ath9k_iowrite32(struct ath_hw *ah, u32 reg_offset, u32 val); |
694 | unsigned int ath9k_ioread32(struct ath_hw *ah, u32 reg_offset); | |
2d6a5e95 | 695 | |
394cf0a1 | 696 | #endif /* ATH9K_H */ |