Commit | Line | Data |
---|---|---|
558a398b | 1 | /*- |
2a1ad637 FT |
2 | * Copyright (c) 2005-2009 Ariff Abdullah <ariff@FreeBSD.org> |
3 | * Portions Copyright (c) Ryan Beasley <ryan.beasley@gmail.com> - GSoC 2006 | |
4 | * Copyright (c) 1999 Cameron Grant <cg@FreeBSD.org> | |
5 | * Portions Copyright (c) Luigi Rizzo <luigi@FreeBSD.org> - 1997-99 | |
984263bc MD |
6 | * All rights reserved. |
7 | * | |
8 | * Redistribution and use in source and binary forms, with or without | |
9 | * modification, are permitted provided that the following conditions | |
10 | * are met: | |
11 | * 1. Redistributions of source code must retain the above copyright | |
12 | * notice, this list of conditions and the following disclaimer. | |
13 | * 2. Redistributions in binary form must reproduce the above copyright | |
14 | * notice, this list of conditions and the following disclaimer in the | |
15 | * documentation and/or other materials provided with the distribution. | |
16 | * | |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND | |
18 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
19 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
20 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |
21 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
22 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
23 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
24 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
25 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
26 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
27 | * SUCH DAMAGE. | |
28 | */ | |
29 | ||
2a1ad637 FT |
30 | #ifdef HAVE_KERNEL_OPTION_HEADERS |
31 | #include "opt_snd.h" | |
32 | #endif | |
33 | ||
984263bc | 34 | #include <dev/sound/pcm/sound.h> |
2a1ad637 | 35 | #include <dev/sound/pcm/vchan.h> |
bb3a8342 | 36 | #include <sys/vnode.h> |
984263bc MD |
37 | |
38 | #include "feeder_if.h" | |
39 | ||
2a1ad637 | 40 | SND_DECLARE_FILE("$FreeBSD: head/sys/dev/sound/pcm/channel.c 267992 2014-06-28 03:56:17Z hselasky $"); |
984263bc | 41 | |
2a1ad637 FT |
42 | int report_soft_formats = 1; |
43 | SYSCTL_INT(_hw_snd, OID_AUTO, report_soft_formats, CTLFLAG_RW, | |
44 | &report_soft_formats, 1, "report software-emulated formats"); | |
984263bc | 45 | |
2a1ad637 FT |
46 | int report_soft_matrix = 1; |
47 | SYSCTL_INT(_hw_snd, OID_AUTO, report_soft_matrix, CTLFLAG_RW, | |
48 | &report_soft_matrix, 1, "report software-emulated channel matrixing"); | |
984263bc | 49 | |
2a1ad637 FT |
50 | int chn_latency = CHN_LATENCY_DEFAULT; |
51 | TUNABLE_INT("hw.snd.latency", &chn_latency); | |
52 | ||
53 | static int | |
54 | sysctl_hw_snd_latency(SYSCTL_HANDLER_ARGS) | |
55 | { | |
56 | int err, val; | |
57 | ||
58 | val = chn_latency; | |
59 | err = sysctl_handle_int(oidp, &val, 0, req); | |
60 | if (err != 0 || req->newptr == NULL) | |
61 | return err; | |
62 | if (val < CHN_LATENCY_MIN || val > CHN_LATENCY_MAX) | |
63 | err = EINVAL; | |
64 | else | |
65 | chn_latency = val; | |
66 | ||
67 | return err; | |
68 | } | |
69 | SYSCTL_PROC(_hw_snd, OID_AUTO, latency, CTLTYPE_INT | CTLFLAG_RW, | |
70 | 0, sizeof(int), sysctl_hw_snd_latency, "I", | |
71 | "buffering latency (0=low ... 10=high)"); | |
984263bc | 72 | |
2a1ad637 FT |
73 | int chn_latency_profile = CHN_LATENCY_PROFILE_DEFAULT; |
74 | TUNABLE_INT("hw.snd.latency_profile", &chn_latency_profile); | |
984263bc MD |
75 | |
76 | static int | |
2a1ad637 | 77 | sysctl_hw_snd_latency_profile(SYSCTL_HANDLER_ARGS) |
984263bc MD |
78 | { |
79 | int err, val; | |
80 | ||
2a1ad637 | 81 | val = chn_latency_profile; |
4520cefc | 82 | err = sysctl_handle_int(oidp, &val, 0, req); |
2a1ad637 FT |
83 | if (err != 0 || req->newptr == NULL) |
84 | return err; | |
85 | if (val < CHN_LATENCY_PROFILE_MIN || val > CHN_LATENCY_PROFILE_MAX) | |
984263bc MD |
86 | err = EINVAL; |
87 | else | |
2a1ad637 | 88 | chn_latency_profile = val; |
984263bc MD |
89 | |
90 | return err; | |
91 | } | |
2a1ad637 FT |
92 | SYSCTL_PROC(_hw_snd, OID_AUTO, latency_profile, CTLTYPE_INT | CTLFLAG_RW, |
93 | 0, sizeof(int), sysctl_hw_snd_latency_profile, "I", | |
4cad9222 | 94 | "buffering latency profile (0=aggressive 1=safe)"); |
2a1ad637 FT |
95 | |
96 | static int chn_timeout = CHN_TIMEOUT; | |
97 | TUNABLE_INT("hw.snd.timeout", &chn_timeout); | |
98 | #ifdef SND_DEBUG | |
99 | static int | |
100 | sysctl_hw_snd_timeout(SYSCTL_HANDLER_ARGS) | |
101 | { | |
102 | int err, val; | |
103 | ||
104 | val = chn_timeout; | |
105 | err = sysctl_handle_int(oidp, &val, 0, req); | |
106 | if (err != 0 || req->newptr == NULL) | |
107 | return err; | |
108 | if (val < CHN_TIMEOUT_MIN || val > CHN_TIMEOUT_MAX) | |
109 | err = EINVAL; | |
110 | else | |
111 | chn_timeout = val; | |
112 | ||
113 | return err; | |
114 | } | |
115 | SYSCTL_PROC(_hw_snd, OID_AUTO, timeout, CTLTYPE_INT | CTLFLAG_RW, | |
116 | 0, sizeof(int), sysctl_hw_snd_timeout, "I", | |
117 | "interrupt timeout (1 - 10) seconds"); | |
118 | #endif | |
119 | ||
120 | static int chn_vpc_autoreset = 1; | |
c4356965 FT |
121 | TUNABLE_INT("hw.snd.vpc_autoreset", &chn_vpc_autoreset); |
122 | SYSCTL_INT(_hw_snd, OID_AUTO, vpc_autoreset, CTLFLAG_RW, | |
2a1ad637 FT |
123 | &chn_vpc_autoreset, 0, "automatically reset channels volume to 0db"); |
124 | ||
125 | static int chn_vol_0db_pcm = SND_VOL_0DB_PCM; | |
126 | TUNABLE_INT("hw.snd.vpc_0db", &chn_vol_0db_pcm); | |
127 | ||
128 | static void | |
129 | chn_vpc_proc(int reset, int db) | |
130 | { | |
131 | struct snddev_info *d; | |
132 | struct pcm_channel *c; | |
133 | int i; | |
134 | ||
135 | for (i = 0; pcm_devclass != NULL && | |
136 | i < devclass_get_maxunit(pcm_devclass); i++) { | |
137 | d = devclass_get_softc(pcm_devclass, i); | |
138 | if (!PCM_REGISTERED(d)) | |
139 | continue; | |
140 | PCM_LOCK(d); | |
141 | PCM_WAIT(d); | |
142 | PCM_ACQUIRE(d); | |
143 | CHN_FOREACH(c, d, channels.pcm) { | |
144 | CHN_LOCK(c); | |
145 | CHN_SETVOLUME(c, SND_VOL_C_PCM, SND_CHN_T_VOL_0DB, db); | |
146 | if (reset != 0) | |
147 | chn_vpc_reset(c, SND_VOL_C_PCM, 1); | |
148 | CHN_UNLOCK(c); | |
149 | } | |
150 | PCM_RELEASE(d); | |
151 | PCM_UNLOCK(d); | |
152 | } | |
153 | } | |
154 | ||
155 | static int | |
156 | sysctl_hw_snd_vpc_0db(SYSCTL_HANDLER_ARGS) | |
157 | { | |
158 | int err, val; | |
984263bc | 159 | |
2a1ad637 FT |
160 | val = chn_vol_0db_pcm; |
161 | err = sysctl_handle_int(oidp, &val, 0, req); | |
162 | if (err != 0 || req->newptr == NULL) | |
163 | return (err); | |
164 | if (val < SND_VOL_0DB_MIN || val > SND_VOL_0DB_MAX) | |
165 | return (EINVAL); | |
166 | ||
167 | chn_vol_0db_pcm = val; | |
168 | chn_vpc_proc(0, val); | |
169 | ||
170 | return (0); | |
171 | } | |
172 | SYSCTL_PROC(_hw_snd, OID_AUTO, vpc_0db, CTLTYPE_INT | CTLFLAG_RW, | |
173 | 0, sizeof(int), sysctl_hw_snd_vpc_0db, "I", | |
174 | "0db relative level"); | |
175 | ||
176 | static int | |
177 | sysctl_hw_snd_vpc_reset(SYSCTL_HANDLER_ARGS) | |
178 | { | |
179 | int err, val; | |
180 | ||
181 | val = 0; | |
182 | err = sysctl_handle_int(oidp, &val, 0, req); | |
183 | if (err != 0 || req->newptr == NULL || val == 0) | |
184 | return (err); | |
185 | ||
186 | chn_vol_0db_pcm = SND_VOL_0DB_PCM; | |
187 | chn_vpc_proc(1, SND_VOL_0DB_PCM); | |
188 | ||
189 | return (0); | |
190 | } | |
191 | SYSCTL_PROC(_hw_snd, OID_AUTO, vpc_reset, CTLTYPE_INT | CTLFLAG_RW, | |
192 | 0, sizeof(int), sysctl_hw_snd_vpc_reset, "I", | |
193 | "reset volume on all channels"); | |
194 | ||
195 | static int chn_usefrags = 0; | |
196 | TUNABLE_INT("hw.snd.usefrags", &chn_usefrags); | |
197 | static int chn_syncdelay = -1; | |
198 | TUNABLE_INT("hw.snd.syncdelay", &chn_syncdelay); | |
199 | #ifdef SND_DEBUG | |
200 | SYSCTL_INT(_hw_snd, OID_AUTO, usefrags, CTLFLAG_RW, | |
201 | &chn_usefrags, 1, "prefer setfragments() over setblocksize()"); | |
202 | SYSCTL_INT(_hw_snd, OID_AUTO, syncdelay, CTLFLAG_RW, | |
203 | &chn_syncdelay, 1, | |
204 | "append (0-1000) millisecond trailing buffer delay on each sync"); | |
205 | #endif | |
206 | ||
207 | /** | |
208 | * @brief Channel sync group lock | |
209 | * | |
210 | * Clients should acquire this lock @b without holding any channel locks | |
211 | * before touching syncgroups or the main syncgroup list. | |
212 | */ | |
67931cc4 FT |
213 | struct lock snd_pcm_syncgroups_mtx; |
214 | LOCK_SYSINIT(pcm_syncgroup, &snd_pcm_syncgroups_mtx, | |
215 | "PCM channel sync group lock", LK_CANRECURSE); | |
2a1ad637 FT |
216 | /** |
217 | * @brief syncgroups' master list | |
218 | * | |
219 | * Each time a channel syncgroup is created, it's added to this list. This | |
220 | * list should only be accessed with @sa snd_pcm_syncgroups_mtx held. | |
221 | * | |
222 | * See SNDCTL_DSP_SYNCGROUP for more information. | |
223 | */ | |
224 | struct pcm_synclist snd_pcm_syncgroups = SLIST_HEAD_INITIALIZER(snd_pcm_syncgroups); | |
984263bc MD |
225 | |
226 | static void | |
558a398b | 227 | chn_lockinit(struct pcm_channel *c, int dir) |
984263bc | 228 | { |
2a1ad637 | 229 | switch (dir) { |
558a398b SS |
230 | case PCMDIR_PLAY: |
231 | c->lock = snd_mtxcreate(c->name, "pcm play channel"); | |
2a1ad637 FT |
232 | cv_init(&c->intr_cv, "pcmwr"); |
233 | break; | |
234 | case PCMDIR_PLAY_VIRTUAL: | |
235 | c->lock = snd_mtxcreate(c->name, "pcm virtual play channel"); | |
236 | cv_init(&c->intr_cv, "pcmwrv"); | |
558a398b SS |
237 | break; |
238 | case PCMDIR_REC: | |
239 | c->lock = snd_mtxcreate(c->name, "pcm record channel"); | |
2a1ad637 | 240 | cv_init(&c->intr_cv, "pcmrd"); |
558a398b | 241 | break; |
2a1ad637 FT |
242 | case PCMDIR_REC_VIRTUAL: |
243 | c->lock = snd_mtxcreate(c->name, "pcm virtual record channel"); | |
244 | cv_init(&c->intr_cv, "pcmrdv"); | |
558a398b | 245 | break; |
2a1ad637 FT |
246 | default: |
247 | panic("%s(): Invalid direction=%d", __func__, dir); | |
558a398b SS |
248 | break; |
249 | } | |
2a1ad637 FT |
250 | |
251 | cv_init(&c->cv, "pcmchn"); | |
984263bc MD |
252 | } |
253 | ||
254 | static void | |
255 | chn_lockdestroy(struct pcm_channel *c) | |
256 | { | |
2a1ad637 FT |
257 | CHN_LOCKASSERT(c); |
258 | ||
259 | CHN_BROADCAST(&c->cv); | |
260 | CHN_BROADCAST(&c->intr_cv); | |
261 | ||
262 | cv_destroy(&c->cv); | |
263 | cv_destroy(&c->intr_cv); | |
264 | ||
984263bc MD |
265 | snd_mtxfree(c->lock); |
266 | } | |
267 | ||
2a1ad637 FT |
268 | /** |
269 | * @brief Determine channel is ready for I/O | |
270 | * | |
271 | * @retval 1 = ready for I/O | |
272 | * @retval 0 = not ready for I/O | |
273 | */ | |
984263bc MD |
274 | static int |
275 | chn_polltrigger(struct pcm_channel *c) | |
276 | { | |
277 | struct snd_dbuf *bs = c->bufsoft; | |
2a1ad637 | 278 | u_int delta; |
984263bc MD |
279 | |
280 | CHN_LOCKASSERT(c); | |
2a1ad637 FT |
281 | |
282 | if (c->flags & CHN_F_MMAP) { | |
283 | if (sndbuf_getprevtotal(bs) < c->lw) | |
284 | delta = c->lw; | |
984263bc | 285 | else |
2a1ad637 | 286 | delta = sndbuf_gettotal(bs) - sndbuf_getprevtotal(bs); |
984263bc | 287 | } else { |
2a1ad637 FT |
288 | if (c->direction == PCMDIR_PLAY) |
289 | delta = sndbuf_getfree(bs); | |
290 | else | |
291 | delta = sndbuf_getready(bs); | |
8f4c1ac1 MD |
292 | |
293 | /* | |
294 | * XXX really bad hack. Force 50% hysteresis. | |
295 | * when audio is playing via audio/alsa-plugins | |
296 | * (work/.../oss) from firefox the playback thread | |
297 | * for some reason is cpu-bound and continuously | |
298 | * poll()s in a situation where there is on the | |
299 | * order of ~30000 bytes of buffer space left. | |
300 | * | |
301 | * The real bug seems to be in the ioplug library, | |
302 | * or perhaps some very stringent assumption for the | |
303 | * ioctls that we aren't following. | |
304 | */ | |
305 | if (c->direction == PCMDIR_PLAY && | |
306 | delta < sndbuf_getsize(bs) / 2) { | |
307 | delta = 0; | |
308 | } | |
984263bc | 309 | } |
2a1ad637 FT |
310 | |
311 | return ((delta < c->lw) ? 0 : 1); | |
984263bc MD |
312 | } |
313 | ||
2a1ad637 | 314 | static void |
984263bc MD |
315 | chn_pollreset(struct pcm_channel *c) |
316 | { | |
984263bc MD |
317 | |
318 | CHN_LOCKASSERT(c); | |
2a1ad637 | 319 | sndbuf_updateprevtotal(c->bufsoft); |
984263bc MD |
320 | } |
321 | ||
322 | static void | |
323 | chn_wakeup(struct pcm_channel *c) | |
324 | { | |
2a1ad637 FT |
325 | struct snd_dbuf *bs; |
326 | struct pcm_channel *ch; | |
984263bc MD |
327 | |
328 | CHN_LOCKASSERT(c); | |
2a1ad637 FT |
329 | |
330 | bs = c->bufsoft; | |
331 | ||
332 | if (CHN_EMPTY(c, children.busy)) { | |
9bade76f FT |
333 | /*if (SEL_WAITING(sndbuf_getsel(bs)) && chn_polltrigger(c))*/ |
334 | if (SLIST_FIRST(&sndbuf_getkq(bs)->ki_note) && chn_polltrigger(c)) { | |
52b1a712 | 335 | KNOTE(&sndbuf_getkq(bs)->ki_note, 0); |
9bade76f | 336 | } |
2a1ad637 | 337 | if (c->flags & CHN_F_SLEEPING) { |
5a5410b8 | 338 | /* |
2a1ad637 FT |
339 | * Ok, I can just panic it right here since it is |
340 | * quite obvious that we never allow multiple waiters | |
341 | * from userland. I'm too generous... | |
5a5410b8 | 342 | */ |
2a1ad637 | 343 | CHN_BROADCAST(&c->intr_cv); |
5a5410b8 | 344 | } |
558a398b | 345 | } else { |
2a1ad637 FT |
346 | CHN_FOREACH(ch, c, children.busy) { |
347 | CHN_LOCK(ch); | |
348 | chn_wakeup(ch); | |
349 | CHN_UNLOCK(ch); | |
558a398b SS |
350 | } |
351 | } | |
984263bc MD |
352 | } |
353 | ||
354 | static int | |
2a1ad637 | 355 | chn_sleep(struct pcm_channel *c, int timeout) |
984263bc | 356 | { |
984263bc MD |
357 | int ret; |
358 | ||
359 | CHN_LOCKASSERT(c); | |
984263bc | 360 | |
2a1ad637 FT |
361 | if (c->flags & CHN_F_DEAD) |
362 | return (EINVAL); | |
363 | ||
364 | c->flags |= CHN_F_SLEEPING; | |
365 | ret = cv_timedwait_sig(&c->intr_cv, c->lock, timeout); | |
366 | c->flags &= ~CHN_F_SLEEPING; | |
367 | ||
368 | return ((c->flags & CHN_F_DEAD) ? EINVAL : ret); | |
984263bc MD |
369 | } |
370 | ||
371 | /* | |
372 | * chn_dmaupdate() tracks the status of a dma transfer, | |
558a398b | 373 | * updating pointers. |
984263bc MD |
374 | */ |
375 | ||
376 | static unsigned int | |
377 | chn_dmaupdate(struct pcm_channel *c) | |
378 | { | |
379 | struct snd_dbuf *b = c->bufhard; | |
380 | unsigned int delta, old, hwptr, amt; | |
381 | ||
382 | KASSERT(sndbuf_getsize(b) > 0, ("bufsize == 0")); | |
383 | CHN_LOCKASSERT(c); | |
384 | ||
385 | old = sndbuf_gethwptr(b); | |
386 | hwptr = chn_getptr(c); | |
387 | delta = (sndbuf_getsize(b) + hwptr - old) % sndbuf_getsize(b); | |
388 | sndbuf_sethwptr(b, hwptr); | |
389 | ||
984263bc | 390 | if (c->direction == PCMDIR_PLAY) { |
2a1ad637 FT |
391 | amt = min(delta, sndbuf_getready(b)); |
392 | amt -= amt % sndbuf_getalign(b); | |
984263bc MD |
393 | if (amt > 0) |
394 | sndbuf_dispose(b, NULL, amt); | |
395 | } else { | |
2a1ad637 FT |
396 | amt = min(delta, sndbuf_getfree(b)); |
397 | amt -= amt % sndbuf_getalign(b); | |
984263bc MD |
398 | if (amt > 0) |
399 | sndbuf_acquire(b, NULL, amt); | |
400 | } | |
2a1ad637 FT |
401 | if (snd_verbose > 3 && CHN_STARTED(c) && delta == 0) { |
402 | device_printf(c->dev, "WARNING: %s DMA completion " | |
403 | "too fast/slow ! hwptr=%u, old=%u " | |
404 | "delta=%u amt=%u ready=%u free=%u\n", | |
405 | CHN_DIRSTR(c), hwptr, old, delta, amt, | |
406 | sndbuf_getready(b), sndbuf_getfree(b)); | |
5c04357c | 407 | } |
984263bc | 408 | |
2a1ad637 | 409 | return delta; |
984263bc MD |
410 | } |
411 | ||
2a1ad637 | 412 | static void |
984263bc MD |
413 | chn_wrfeed(struct pcm_channel *c) |
414 | { | |
415 | struct snd_dbuf *b = c->bufhard; | |
416 | struct snd_dbuf *bs = c->bufsoft; | |
2a1ad637 | 417 | unsigned int amt, want, wasfree; |
984263bc MD |
418 | |
419 | CHN_LOCKASSERT(c); | |
984263bc | 420 | |
2a1ad637 | 421 | if ((c->flags & CHN_F_MMAP) && !(c->flags & CHN_F_CLOSING)) |
984263bc MD |
422 | sndbuf_acquire(bs, NULL, sndbuf_getfree(bs)); |
423 | ||
2a1ad637 FT |
424 | wasfree = sndbuf_getfree(b); |
425 | want = min(sndbuf_getsize(b), | |
426 | imax(0, sndbuf_xbytes(sndbuf_getsize(bs), bs, b) - | |
427 | sndbuf_getready(b))); | |
428 | amt = min(wasfree, want); | |
429 | if (amt > 0) | |
430 | sndbuf_feed(bs, b, c, c->feeder, amt); | |
558a398b | 431 | |
558a398b SS |
432 | /* |
433 | * Possible xruns. There should be no empty space left in buffer. | |
434 | */ | |
2a1ad637 | 435 | if (sndbuf_getready(b) < want) |
984263bc MD |
436 | c->xruns++; |
437 | ||
2a1ad637 | 438 | if (sndbuf_getfree(b) < wasfree) |
984263bc | 439 | chn_wakeup(c); |
2a1ad637 | 440 | } |
984263bc | 441 | |
2a1ad637 FT |
442 | #if 0 |
443 | static void | |
444 | chn_wrupdate(struct pcm_channel *c) | |
445 | { | |
446 | ||
447 | CHN_LOCKASSERT(c); | |
448 | KASSERT(c->direction == PCMDIR_PLAY, ("%s(): bad channel", __func__)); | |
449 | ||
450 | if ((c->flags & (CHN_F_MMAP | CHN_F_VIRTUAL)) || CHN_STOPPED(c)) | |
451 | return; | |
452 | chn_dmaupdate(c); | |
453 | chn_wrfeed(c); | |
454 | /* tell the driver we've updated the primary buffer */ | |
455 | chn_trigger(c, PCMTRIG_EMLDMAWR); | |
984263bc | 456 | } |
2a1ad637 | 457 | #endif |
984263bc MD |
458 | |
459 | static void | |
460 | chn_wrintr(struct pcm_channel *c) | |
461 | { | |
984263bc MD |
462 | |
463 | CHN_LOCKASSERT(c); | |
464 | /* update pointers in primary buffer */ | |
465 | chn_dmaupdate(c); | |
466 | /* ...and feed from secondary to primary */ | |
2a1ad637 | 467 | chn_wrfeed(c); |
984263bc MD |
468 | /* tell the driver we've updated the primary buffer */ |
469 | chn_trigger(c, PCMTRIG_EMLDMAWR); | |
984263bc MD |
470 | } |
471 | ||
472 | /* | |
473 | * user write routine - uiomove data into secondary buffer, trigger if necessary | |
474 | * if blocking, sleep, rinse and repeat. | |
475 | * | |
476 | * called externally, so must handle locking | |
477 | */ | |
478 | ||
479 | int | |
bb3a8342 | 480 | chn_write(struct pcm_channel *c, struct uio *buf, int ioflags) |
984263bc | 481 | { |
984263bc | 482 | struct snd_dbuf *bs = c->bufsoft; |
558a398b | 483 | void *off; |
2a1ad637 | 484 | int ret, timeout, sz, t, p; |
984263bc MD |
485 | |
486 | CHN_LOCKASSERT(c); | |
984263bc MD |
487 | |
488 | ret = 0; | |
2a1ad637 | 489 | timeout = chn_timeout * hz; |
558a398b | 490 | |
2a1ad637 FT |
491 | while (ret == 0 && buf->uio_resid > 0) { |
492 | sz = min(buf->uio_resid, sndbuf_getfree(bs)); | |
493 | if (sz > 0) { | |
558a398b SS |
494 | /* |
495 | * The following assumes that the free space in | |
496 | * the buffer can never be less around the | |
497 | * unlock-uiomove-lock sequence. | |
498 | */ | |
2a1ad637 | 499 | while (ret == 0 && sz > 0) { |
558a398b | 500 | p = sndbuf_getfreeptr(bs); |
2a1ad637 | 501 | t = min(sz, sndbuf_getsize(bs) - p); |
558a398b SS |
502 | off = sndbuf_getbufofs(bs, p); |
503 | CHN_UNLOCK(c); | |
504 | ret = uiomove(off, t, buf); | |
505 | CHN_LOCK(c); | |
2a1ad637 FT |
506 | sz -= t; |
507 | sndbuf_acquire(bs, NULL, t); | |
558a398b SS |
508 | } |
509 | ret = 0; | |
2a1ad637 FT |
510 | if (CHN_STOPPED(c) && !(c->flags & CHN_F_NOTRIGGER)) { |
511 | ret = chn_start(c, 0); | |
512 | if (ret != 0) | |
513 | c->flags |= CHN_F_DEAD; | |
514 | } | |
bb3a8342 SZ |
515 | } else if ((ioflags & IO_NDELAY) || |
516 | (c->flags & CHN_F_NOTRIGGER)) { | |
2a1ad637 FT |
517 | /** |
518 | * @todo Evaluate whether EAGAIN is truly desirable. | |
519 | * 4Front drivers behave like this, but I'm | |
520 | * not sure if it at all violates the "write | |
521 | * should be allowed to block" model. | |
522 | * | |
523 | * The idea is that, while set with CHN_F_NOTRIGGER, | |
524 | * a channel isn't playing, *but* without this we | |
525 | * end up with "interrupt timeout / channel dead". | |
526 | */ | |
527 | ret = EAGAIN; | |
528 | } else { | |
529 | ret = chn_sleep(c, timeout); | |
530 | if (ret == EAGAIN) { | |
531 | ret = EINVAL; | |
532 | c->flags |= CHN_F_DEAD; | |
533 | device_printf(c->dev, "%s(): %s: " | |
534 | "play interrupt timeout, channel dead\n", | |
535 | __func__, c->name); | |
536 | } else if (ret == ERESTART || ret == EINTR) | |
537 | c->flags |= CHN_F_ABORTING; | |
984263bc MD |
538 | } |
539 | } | |
984263bc | 540 | |
2a1ad637 | 541 | return (ret); |
984263bc MD |
542 | } |
543 | ||
544 | /* | |
545 | * Feed new data from the read buffer. Can be called in the bottom half. | |
984263bc | 546 | */ |
2a1ad637 | 547 | static void |
984263bc MD |
548 | chn_rdfeed(struct pcm_channel *c) |
549 | { | |
550 | struct snd_dbuf *b = c->bufhard; | |
551 | struct snd_dbuf *bs = c->bufsoft; | |
2a1ad637 | 552 | unsigned int amt; |
984263bc MD |
553 | |
554 | CHN_LOCKASSERT(c); | |
984263bc | 555 | |
2a1ad637 FT |
556 | if (c->flags & CHN_F_MMAP) |
557 | sndbuf_dispose(bs, NULL, sndbuf_getready(bs)); | |
558 | ||
558a398b | 559 | amt = sndbuf_getfree(bs); |
2a1ad637 FT |
560 | if (amt > 0) |
561 | sndbuf_feed(b, bs, c, c->feeder, amt); | |
984263bc MD |
562 | |
563 | amt = sndbuf_getready(b); | |
558a398b SS |
564 | if (amt > 0) { |
565 | c->xruns++; | |
566 | sndbuf_dispose(b, NULL, amt); | |
567 | } | |
984263bc | 568 | |
2a1ad637 FT |
569 | if (sndbuf_getready(bs) > 0) |
570 | chn_wakeup(c); | |
984263bc MD |
571 | } |
572 | ||
2a1ad637 FT |
573 | #if 0 |
574 | static void | |
984263bc MD |
575 | chn_rdupdate(struct pcm_channel *c) |
576 | { | |
984263bc MD |
577 | |
578 | CHN_LOCKASSERT(c); | |
579 | KASSERT(c->direction == PCMDIR_REC, ("chn_rdupdate on bad channel")); | |
580 | ||
2a1ad637 | 581 | if ((c->flags & (CHN_F_MMAP | CHN_F_VIRTUAL)) || CHN_STOPPED(c)) |
984263bc MD |
582 | return; |
583 | chn_trigger(c, PCMTRIG_EMLDMARD); | |
584 | chn_dmaupdate(c); | |
2a1ad637 | 585 | chn_rdfeed(c); |
984263bc | 586 | } |
2a1ad637 | 587 | #endif |
984263bc MD |
588 | |
589 | /* read interrupt routine. Must be called with interrupts blocked. */ | |
590 | static void | |
591 | chn_rdintr(struct pcm_channel *c) | |
592 | { | |
984263bc MD |
593 | |
594 | CHN_LOCKASSERT(c); | |
595 | /* tell the driver to update the primary buffer if non-dma */ | |
596 | chn_trigger(c, PCMTRIG_EMLDMARD); | |
597 | /* update pointers in primary buffer */ | |
598 | chn_dmaupdate(c); | |
599 | /* ...and feed from primary to secondary */ | |
2a1ad637 | 600 | chn_rdfeed(c); |
984263bc MD |
601 | } |
602 | ||
603 | /* | |
604 | * user read routine - trigger if necessary, uiomove data from secondary buffer | |
605 | * if blocking, sleep, rinse and repeat. | |
606 | * | |
607 | * called externally, so must handle locking | |
608 | */ | |
609 | ||
610 | int | |
bb3a8342 | 611 | chn_read(struct pcm_channel *c, struct uio *buf, int ioflags) |
984263bc | 612 | { |
2a1ad637 | 613 | struct snd_dbuf *bs = c->bufsoft; |
558a398b | 614 | void *off; |
2a1ad637 | 615 | int ret, timeout, sz, t, p; |
984263bc MD |
616 | |
617 | CHN_LOCKASSERT(c); | |
2a1ad637 FT |
618 | |
619 | if (CHN_STOPPED(c) && !(c->flags & CHN_F_NOTRIGGER)) { | |
620 | ret = chn_start(c, 0); | |
621 | if (ret != 0) { | |
622 | c->flags |= CHN_F_DEAD; | |
623 | return (ret); | |
624 | } | |
625 | } | |
984263bc MD |
626 | |
627 | ret = 0; | |
2a1ad637 | 628 | timeout = chn_timeout * hz; |
984263bc | 629 | |
2a1ad637 FT |
630 | while (ret == 0 && buf->uio_resid > 0) { |
631 | sz = min(buf->uio_resid, sndbuf_getready(bs)); | |
984263bc | 632 | if (sz > 0) { |
558a398b SS |
633 | /* |
634 | * The following assumes that the free space in | |
635 | * the buffer can never be less around the | |
636 | * unlock-uiomove-lock sequence. | |
637 | */ | |
2a1ad637 | 638 | while (ret == 0 && sz > 0) { |
558a398b | 639 | p = sndbuf_getreadyptr(bs); |
2a1ad637 | 640 | t = min(sz, sndbuf_getsize(bs) - p); |
558a398b SS |
641 | off = sndbuf_getbufofs(bs, p); |
642 | CHN_UNLOCK(c); | |
643 | ret = uiomove(off, t, buf); | |
644 | CHN_LOCK(c); | |
2a1ad637 FT |
645 | sz -= t; |
646 | sndbuf_dispose(bs, NULL, t); | |
558a398b SS |
647 | } |
648 | ret = 0; | |
bb3a8342 SZ |
649 | } else if ((ioflags & IO_NDELAY) || |
650 | (c->flags & CHN_F_NOTRIGGER)) { | |
2a1ad637 | 651 | ret = EAGAIN; |
bb3a8342 | 652 | } else { |
2a1ad637 FT |
653 | ret = chn_sleep(c, timeout); |
654 | if (ret == EAGAIN) { | |
655 | ret = EINVAL; | |
656 | c->flags |= CHN_F_DEAD; | |
657 | device_printf(c->dev, "%s(): %s: " | |
658 | "record interrupt timeout, channel dead\n", | |
659 | __func__, c->name); | |
660 | } else if (ret == ERESTART || ret == EINTR) | |
661 | c->flags |= CHN_F_ABORTING; | |
984263bc MD |
662 | } |
663 | } | |
664 | ||
2a1ad637 | 665 | return (ret); |
984263bc MD |
666 | } |
667 | ||
668 | void | |
2a1ad637 | 669 | chn_intr_locked(struct pcm_channel *c) |
984263bc | 670 | { |
2a1ad637 FT |
671 | |
672 | CHN_LOCKASSERT(c); | |
673 | ||
984263bc | 674 | c->interrupts++; |
2a1ad637 | 675 | |
984263bc MD |
676 | if (c->direction == PCMDIR_PLAY) |
677 | chn_wrintr(c); | |
678 | else | |
679 | chn_rdintr(c); | |
2a1ad637 FT |
680 | } |
681 | ||
682 | void | |
683 | chn_intr(struct pcm_channel *c) | |
684 | { | |
685 | ||
686 | if (CHN_LOCKOWNED(c)) { | |
687 | chn_intr_locked(c); | |
688 | return; | |
689 | } | |
690 | ||
691 | CHN_LOCK(c); | |
692 | chn_intr_locked(c); | |
984263bc MD |
693 | CHN_UNLOCK(c); |
694 | } | |
695 | ||
696 | u_int32_t | |
697 | chn_start(struct pcm_channel *c, int force) | |
698 | { | |
699 | u_int32_t i, j; | |
700 | struct snd_dbuf *b = c->bufhard; | |
701 | struct snd_dbuf *bs = c->bufsoft; | |
2a1ad637 | 702 | int err; |
984263bc MD |
703 | |
704 | CHN_LOCKASSERT(c); | |
705 | /* if we're running, or if we're prevented from triggering, bail */ | |
2a1ad637 FT |
706 | if (CHN_STARTED(c) || ((c->flags & CHN_F_NOTRIGGER) && !force)) |
707 | return (EINVAL); | |
984263bc | 708 | |
2a1ad637 FT |
709 | err = 0; |
710 | ||
711 | if (force) { | |
712 | i = 1; | |
713 | j = 0; | |
714 | } else { | |
715 | if (c->direction == PCMDIR_REC) { | |
716 | i = sndbuf_getfree(bs); | |
717 | j = (i > 0) ? 1 : sndbuf_getready(b); | |
718 | } else { | |
719 | if (sndbuf_getfree(bs) == 0) { | |
720 | i = 1; | |
721 | j = 0; | |
722 | } else { | |
723 | struct snd_dbuf *pb; | |
724 | ||
725 | pb = CHN_BUF_PARENT(c, b); | |
726 | i = sndbuf_xbytes(sndbuf_getready(bs), bs, pb); | |
727 | j = sndbuf_getalign(pb); | |
728 | } | |
984263bc | 729 | } |
2a1ad637 FT |
730 | if (snd_verbose > 3 && CHN_EMPTY(c, children)) |
731 | device_printf(c->dev, "%s(): %s (%s) threshold " | |
732 | "i=%d j=%d\n", __func__, CHN_DIRSTR(c), | |
733 | (c->flags & CHN_F_VIRTUAL) ? "virtual" : | |
734 | "hardware", i, j); | |
735 | } | |
736 | ||
737 | if (i >= j) { | |
738 | c->flags |= CHN_F_TRIGGERED; | |
984263bc | 739 | sndbuf_setrun(b, 1); |
2a1ad637 FT |
740 | if (c->flags & CHN_F_CLOSING) |
741 | c->feedcount = 2; | |
742 | else { | |
743 | c->feedcount = 0; | |
744 | c->interrupts = 0; | |
745 | c->xruns = 0; | |
746 | } | |
747 | if (c->parentchannel == NULL) { | |
748 | if (c->direction == PCMDIR_PLAY) | |
749 | sndbuf_fillsilence_rl(b, | |
750 | sndbuf_xbytes(sndbuf_getsize(bs), bs, b)); | |
751 | if (snd_verbose > 3) | |
752 | device_printf(c->dev, | |
753 | "%s(): %s starting! (%s/%s) " | |
754 | "(ready=%d force=%d i=%d j=%d " | |
755 | "intrtimeout=%u latency=%dms)\n", | |
756 | __func__, | |
757 | (c->flags & CHN_F_HAS_VCHAN) ? | |
758 | "VCHAN PARENT" : "HW", CHN_DIRSTR(c), | |
759 | (c->flags & CHN_F_CLOSING) ? "closing" : | |
760 | "running", | |
761 | sndbuf_getready(b), | |
762 | force, i, j, c->timeout, | |
763 | (sndbuf_getsize(b) * 1000) / | |
764 | (sndbuf_getalign(b) * sndbuf_getspd(b))); | |
765 | } | |
766 | err = chn_trigger(c, PCMTRIG_START); | |
984263bc MD |
767 | } |
768 | ||
2a1ad637 | 769 | return (err); |
984263bc MD |
770 | } |
771 | ||
772 | void | |
773 | chn_resetbuf(struct pcm_channel *c) | |
774 | { | |
775 | struct snd_dbuf *b = c->bufhard; | |
776 | struct snd_dbuf *bs = c->bufsoft; | |
777 | ||
778 | c->blocks = 0; | |
779 | sndbuf_reset(b); | |
780 | sndbuf_reset(bs); | |
781 | } | |
782 | ||
783 | /* | |
784 | * chn_sync waits until the space in the given channel goes above | |
785 | * a threshold. The threshold is checked against fl or rl respectively. | |
786 | * Assume that the condition can become true, do not check here... | |
787 | */ | |
788 | int | |
789 | chn_sync(struct pcm_channel *c, int threshold) | |
790 | { | |
2a1ad637 FT |
791 | struct snd_dbuf *b, *bs; |
792 | int ret, count, hcount, minflush, resid, residp, syncdelay, blksz; | |
793 | u_int32_t cflag; | |
984263bc MD |
794 | |
795 | CHN_LOCKASSERT(c); | |
558a398b | 796 | |
2a1ad637 FT |
797 | if (c->direction != PCMDIR_PLAY) |
798 | return (EINVAL); | |
799 | ||
800 | bs = c->bufsoft; | |
801 | ||
802 | if ((c->flags & (CHN_F_DEAD | CHN_F_ABORTING)) || | |
803 | (threshold < 1 && sndbuf_getready(bs) < 1)) | |
804 | return (0); | |
805 | ||
558a398b | 806 | /* if we haven't yet started and nothing is buffered, else start*/ |
2a1ad637 FT |
807 | if (CHN_STOPPED(c)) { |
808 | if (threshold > 0 || sndbuf_getready(bs) > 0) { | |
558a398b | 809 | ret = chn_start(c, 1); |
2a1ad637 FT |
810 | if (ret != 0) |
811 | return (ret); | |
812 | } else | |
813 | return (0); | |
558a398b SS |
814 | } |
815 | ||
2a1ad637 | 816 | b = CHN_BUF_PARENT(c, c->bufhard); |
984263bc | 817 | |
2a1ad637 | 818 | minflush = threshold + sndbuf_xbytes(sndbuf_getready(b), b, bs); |
984263bc | 819 | |
2a1ad637 | 820 | syncdelay = chn_syncdelay; |
984263bc | 821 | |
2a1ad637 FT |
822 | if (syncdelay < 0 && (threshold > 0 || sndbuf_getready(bs) > 0)) |
823 | minflush += sndbuf_xbytes(sndbuf_getsize(b), b, bs); | |
824 | ||
825 | /* | |
826 | * Append (0-1000) millisecond trailing buffer (if needed) | |
827 | * for slower / high latency hardwares (notably USB audio) | |
828 | * to avoid audible truncation. | |
829 | */ | |
830 | if (syncdelay > 0) | |
831 | minflush += (sndbuf_getalign(bs) * sndbuf_getspd(bs) * | |
832 | ((syncdelay > 1000) ? 1000 : syncdelay)) / 1000; | |
833 | ||
834 | minflush -= minflush % sndbuf_getalign(bs); | |
835 | ||
836 | if (minflush > 0) { | |
837 | threshold = min(minflush, sndbuf_getfree(bs)); | |
838 | sndbuf_clear(bs, threshold); | |
839 | sndbuf_acquire(bs, NULL, threshold); | |
840 | minflush -= threshold; | |
841 | } | |
842 | ||
843 | resid = sndbuf_getready(bs); | |
844 | residp = resid; | |
845 | blksz = sndbuf_getblksz(b); | |
846 | if (blksz < 1) { | |
847 | device_printf(c->dev, | |
848 | "%s(): WARNING: blksz < 1 ! maxsize=%d [%d/%d/%d]\n", | |
849 | __func__, sndbuf_getmaxsize(b), sndbuf_getsize(b), | |
850 | sndbuf_getblksz(b), sndbuf_getblkcnt(b)); | |
851 | if (sndbuf_getblkcnt(b) > 0) | |
852 | blksz = sndbuf_getsize(b) / sndbuf_getblkcnt(b); | |
853 | if (blksz < 1) | |
854 | blksz = 1; | |
855 | } | |
856 | count = sndbuf_xbytes(minflush + resid, bs, b) / blksz; | |
857 | hcount = count; | |
858 | ret = 0; | |
859 | ||
860 | if (snd_verbose > 3) | |
861 | device_printf(c->dev, "%s(): [begin] timeout=%d count=%d " | |
862 | "minflush=%d resid=%d\n", __func__, c->timeout, count, | |
863 | minflush, resid); | |
864 | ||
865 | cflag = c->flags & CHN_F_CLOSING; | |
866 | c->flags |= CHN_F_CLOSING; | |
867 | while (count > 0 && (resid > 0 || minflush > 0)) { | |
868 | ret = chn_sleep(c, c->timeout); | |
869 | if (ret == ERESTART || ret == EINTR) { | |
870 | c->flags |= CHN_F_ABORTING; | |
871 | break; | |
872 | } else if (ret == 0 || ret == EAGAIN) { | |
873 | resid = sndbuf_getready(bs); | |
874 | if (resid == residp) { | |
875 | --count; | |
876 | if (snd_verbose > 3) | |
877 | device_printf(c->dev, | |
878 | "%s(): [stalled] timeout=%d " | |
879 | "count=%d hcount=%d " | |
880 | "resid=%d minflush=%d\n", | |
881 | __func__, c->timeout, count, | |
882 | hcount, resid, minflush); | |
883 | } else if (resid < residp && count < hcount) { | |
884 | ++count; | |
885 | if (snd_verbose > 3) | |
886 | device_printf(c->dev, | |
887 | "%s((): [resume] timeout=%d " | |
888 | "count=%d hcount=%d " | |
889 | "resid=%d minflush=%d\n", | |
890 | __func__, c->timeout, count, | |
891 | hcount, resid, minflush); | |
892 | } | |
893 | if (minflush > 0 && sndbuf_getfree(bs) > 0) { | |
894 | threshold = min(minflush, | |
895 | sndbuf_getfree(bs)); | |
896 | sndbuf_clear(bs, threshold); | |
897 | sndbuf_acquire(bs, NULL, threshold); | |
898 | resid = sndbuf_getready(bs); | |
899 | minflush -= threshold; | |
900 | } | |
901 | residp = resid; | |
902 | } else | |
903 | break; | |
904 | } | |
905 | c->flags &= ~CHN_F_CLOSING; | |
906 | c->flags |= cflag; | |
907 | ||
908 | if (snd_verbose > 3) | |
909 | device_printf(c->dev, | |
910 | "%s(): timeout=%d count=%d hcount=%d resid=%d residp=%d " | |
911 | "minflush=%d ret=%d\n", | |
912 | __func__, c->timeout, count, hcount, resid, residp, | |
913 | minflush, ret); | |
914 | ||
915 | return (0); | |
916 | } | |
917 | ||
918 | /* called externally, handle locking */ | |
919 | int | |
920 | chn_poll(struct pcm_channel *c, int ev, struct thread *td) | |
921 | { | |
2a1ad637 FT |
922 | int ret; |
923 | ||
924 | CHN_LOCKASSERT(c); | |
925 | ||
926 | if (!(c->flags & (CHN_F_MMAP | CHN_F_TRIGGERED))) { | |
927 | ret = chn_start(c, 1); | |
928 | if (ret != 0) | |
929 | return (0); | |
930 | } | |
931 | ||
932 | ret = 0; | |
933 | if (chn_polltrigger(c)) { | |
934 | chn_pollreset(c); | |
935 | ret = ev; | |
9bade76f | 936 | } |
2a1ad637 FT |
937 | |
938 | return (ret); | |
939 | } | |
940 | ||
941 | /* | |
942 | * chn_abort terminates a running dma transfer. it may sleep up to 200ms. | |
943 | * it returns the number of bytes that have not been transferred. | |
944 | * | |
984263bc MD |
945 | * called from: dsp_close, dsp_ioctl, with channel locked |
946 | */ | |
947 | int | |
948 | chn_abort(struct pcm_channel *c) | |
949 | { | |
950 | int missing = 0; | |
951 | struct snd_dbuf *b = c->bufhard; | |
952 | struct snd_dbuf *bs = c->bufsoft; | |
953 | ||
954 | CHN_LOCKASSERT(c); | |
2a1ad637 | 955 | if (CHN_STOPPED(c)) |
984263bc MD |
956 | return 0; |
957 | c->flags |= CHN_F_ABORTING; | |
958 | ||
959 | c->flags &= ~CHN_F_TRIGGERED; | |
960 | /* kill the channel */ | |
961 | chn_trigger(c, PCMTRIG_ABORT); | |
962 | sndbuf_setrun(b, 0); | |
963 | if (!(c->flags & CHN_F_VIRTUAL)) | |
964 | chn_dmaupdate(c); | |
2a1ad637 | 965 | missing = sndbuf_getready(bs); |
984263bc MD |
966 | |
967 | c->flags &= ~CHN_F_ABORTING; | |
968 | return missing; | |
969 | } | |
970 | ||
971 | /* | |
972 | * this routine tries to flush the dma transfer. It is called | |
558a398b SS |
973 | * on a close of a playback channel. |
974 | * first, if there is data in the buffer, but the dma has not yet | |
975 | * begun, we need to start it. | |
976 | * next, we wait for the play buffer to drain | |
977 | * finally, we stop the dma. | |
984263bc | 978 | * |
558a398b | 979 | * called from: dsp_close, not valid for record channels. |
984263bc MD |
980 | */ |
981 | ||
982 | int | |
983 | chn_flush(struct pcm_channel *c) | |
984 | { | |
984263bc | 985 | struct snd_dbuf *b = c->bufhard; |
984263bc MD |
986 | |
987 | CHN_LOCKASSERT(c); | |
558a398b | 988 | KASSERT(c->direction == PCMDIR_PLAY, ("chn_flush on bad channel")); |
67931cc4 | 989 | DEB(kprintf("chn_flush: c->flags 0x%08x\n", c->flags)); |
984263bc MD |
990 | |
991 | c->flags |= CHN_F_CLOSING; | |
2a1ad637 | 992 | chn_sync(c, 0); |
984263bc MD |
993 | c->flags &= ~CHN_F_TRIGGERED; |
994 | /* kill the channel */ | |
995 | chn_trigger(c, PCMTRIG_ABORT); | |
996 | sndbuf_setrun(b, 0); | |
997 | ||
998 | c->flags &= ~CHN_F_CLOSING; | |
999 | return 0; | |
1000 | } | |
1001 | ||
1002 | int | |
2a1ad637 | 1003 | snd_fmtvalid(uint32_t fmt, uint32_t *fmtlist) |
984263bc MD |
1004 | { |
1005 | int i; | |
1006 | ||
2a1ad637 FT |
1007 | for (i = 0; fmtlist[i] != 0; i++) { |
1008 | if (fmt == fmtlist[i] || | |
1009 | ((fmt & AFMT_PASSTHROUGH) && | |
1010 | (AFMT_ENCODING(fmt) & fmtlist[i]))) | |
1011 | return (1); | |
1012 | } | |
1013 | ||
1014 | return (0); | |
1015 | } | |
1016 | ||
1017 | static const struct { | |
1018 | char *name, *alias1, *alias2; | |
1019 | uint32_t afmt; | |
1020 | } afmt_tab[] = { | |
1021 | { "alaw", NULL, NULL, AFMT_A_LAW }, | |
1022 | { "mulaw", NULL, NULL, AFMT_MU_LAW }, | |
1023 | { "u8", "8", NULL, AFMT_U8 }, | |
1024 | { "s8", NULL, NULL, AFMT_S8 }, | |
1025 | #if BYTE_ORDER == LITTLE_ENDIAN | |
1026 | { "s16le", "s16", "16", AFMT_S16_LE }, | |
1027 | { "s16be", NULL, NULL, AFMT_S16_BE }, | |
1028 | #else | |
1029 | { "s16le", NULL, NULL, AFMT_S16_LE }, | |
1030 | { "s16be", "s16", "16", AFMT_S16_BE }, | |
1031 | #endif | |
1032 | { "u16le", NULL, NULL, AFMT_U16_LE }, | |
1033 | { "u16be", NULL, NULL, AFMT_U16_BE }, | |
1034 | { "s24le", NULL, NULL, AFMT_S24_LE }, | |
1035 | { "s24be", NULL, NULL, AFMT_S24_BE }, | |
1036 | { "u24le", NULL, NULL, AFMT_U24_LE }, | |
1037 | { "u24be", NULL, NULL, AFMT_U24_BE }, | |
1038 | #if BYTE_ORDER == LITTLE_ENDIAN | |
1039 | { "s32le", "s32", "32", AFMT_S32_LE }, | |
1040 | { "s32be", NULL, NULL, AFMT_S32_BE }, | |
1041 | #else | |
1042 | { "s32le", NULL, NULL, AFMT_S32_LE }, | |
1043 | { "s32be", "s32", "32", AFMT_S32_BE }, | |
1044 | #endif | |
1045 | { "u32le", NULL, NULL, AFMT_U32_LE }, | |
1046 | { "u32be", NULL, NULL, AFMT_U32_BE }, | |
1047 | { "ac3", NULL, NULL, AFMT_AC3 }, | |
1048 | { NULL, NULL, NULL, 0 } | |
1049 | }; | |
1050 | ||
1051 | static const struct { | |
1052 | char *name, *alias1, *alias2; | |
1053 | int matrix_id; | |
1054 | } matrix_id_tab[] = { | |
1055 | { "1.0", "1", "mono", SND_CHN_MATRIX_1_0 }, | |
1056 | { "2.0", "2", "stereo", SND_CHN_MATRIX_2_0 }, | |
1057 | { "2.1", NULL, NULL, SND_CHN_MATRIX_2_1 }, | |
1058 | { "3.0", "3", NULL, SND_CHN_MATRIX_3_0 }, | |
1059 | { "3.1", NULL, NULL, SND_CHN_MATRIX_3_1 }, | |
1060 | { "4.0", "4", "quad", SND_CHN_MATRIX_4_0 }, | |
1061 | { "4.1", NULL, NULL, SND_CHN_MATRIX_4_1 }, | |
1062 | { "5.0", "5", NULL, SND_CHN_MATRIX_5_0 }, | |
1063 | { "5.1", "6", NULL, SND_CHN_MATRIX_5_1 }, | |
1064 | { "6.0", NULL, NULL, SND_CHN_MATRIX_6_0 }, | |
1065 | { "6.1", "7", NULL, SND_CHN_MATRIX_6_1 }, | |
1066 | { "7.0", NULL, NULL, SND_CHN_MATRIX_7_0 }, | |
1067 | { "7.1", "8", NULL, SND_CHN_MATRIX_7_1 }, | |
1068 | { NULL, NULL, NULL, SND_CHN_MATRIX_UNKNOWN } | |
1069 | }; | |
1070 | ||
1071 | uint32_t | |
1072 | snd_str2afmt(const char *req) | |
1073 | { | |
1074 | uint32_t i, afmt; | |
1075 | int matrix_id; | |
1076 | char b1[8], b2[8]; | |
1077 | ||
67931cc4 | 1078 | i = ksscanf(req, "%5[^:]:%6s", b1, b2); |
2a1ad637 FT |
1079 | |
1080 | if (i == 1) { | |
1081 | if (strlen(req) != strlen(b1)) | |
1082 | return (0); | |
1083 | strlcpy(b2, "2.0", sizeof(b2)); | |
1084 | } else if (i == 2) { | |
1085 | if (strlen(req) != (strlen(b1) + 1 + strlen(b2))) | |
1086 | return (0); | |
1087 | } else | |
1088 | return (0); | |
1089 | ||
1090 | afmt = 0; | |
1091 | matrix_id = SND_CHN_MATRIX_UNKNOWN; | |
1092 | ||
1093 | for (i = 0; afmt == 0 && afmt_tab[i].name != NULL; i++) { | |
1094 | if (strcasecmp(afmt_tab[i].name, b1) == 0 || | |
1095 | (afmt_tab[i].alias1 != NULL && | |
1096 | strcasecmp(afmt_tab[i].alias1, b1) == 0) || | |
1097 | (afmt_tab[i].alias2 != NULL && | |
1098 | strcasecmp(afmt_tab[i].alias2, b1) == 0)) { | |
1099 | afmt = afmt_tab[i].afmt; | |
1100 | strlcpy(b1, afmt_tab[i].name, sizeof(b1)); | |
1101 | } | |
1102 | } | |
1103 | ||
1104 | if (afmt == 0) | |
1105 | return (0); | |
1106 | ||
1107 | for (i = 0; matrix_id == SND_CHN_MATRIX_UNKNOWN && | |
1108 | matrix_id_tab[i].name != NULL; i++) { | |
1109 | if (strcmp(matrix_id_tab[i].name, b2) == 0 || | |
1110 | (matrix_id_tab[i].alias1 != NULL && | |
1111 | strcmp(matrix_id_tab[i].alias1, b2) == 0) || | |
1112 | (matrix_id_tab[i].alias2 != NULL && | |
1113 | strcasecmp(matrix_id_tab[i].alias2, b2) == 0)) { | |
1114 | matrix_id = matrix_id_tab[i].matrix_id; | |
1115 | strlcpy(b2, matrix_id_tab[i].name, sizeof(b2)); | |
1116 | } | |
1117 | } | |
1118 | ||
1119 | if (matrix_id == SND_CHN_MATRIX_UNKNOWN) | |
1120 | return (0); | |
1121 | ||
1122 | #ifndef _KERNEL | |
1123 | printf("Parse OK: '%s' -> '%s:%s' %d\n", req, b1, b2, | |
1124 | (int)(b2[0]) - '0' + (int)(b2[2]) - '0'); | |
1125 | #endif | |
1126 | ||
1127 | return (SND_FORMAT(afmt, b2[0] - '0' + b2[2] - '0', b2[2] - '0')); | |
1128 | } | |
1129 | ||
1130 | uint32_t | |
1131 | snd_afmt2str(uint32_t afmt, char *buf, size_t len) | |
1132 | { | |
1133 | uint32_t i, enc, ch, ext; | |
1134 | char tmp[AFMTSTR_LEN]; | |
1135 | ||
1136 | if (buf == NULL || len < AFMTSTR_LEN) | |
1137 | return (0); | |
1138 | ||
1139 | ||
1140 | bzero(tmp, sizeof(tmp)); | |
1141 | ||
1142 | enc = AFMT_ENCODING(afmt); | |
1143 | ch = AFMT_CHANNEL(afmt); | |
1144 | ext = AFMT_EXTCHANNEL(afmt); | |
1145 | ||
1146 | for (i = 0; afmt_tab[i].name != NULL; i++) { | |
1147 | if (enc == afmt_tab[i].afmt) { | |
1148 | strlcpy(tmp, afmt_tab[i].name, sizeof(tmp)); | |
1149 | strlcat(tmp, ":", sizeof(tmp)); | |
1150 | break; | |
1151 | } | |
1152 | } | |
1153 | ||
1154 | if (strlen(tmp) == 0) | |
1155 | return (0); | |
1156 | ||
1157 | for (i = 0; matrix_id_tab[i].name != NULL; i++) { | |
1158 | if (ch == (matrix_id_tab[i].name[0] - '0' + | |
1159 | matrix_id_tab[i].name[2] - '0') && | |
1160 | ext == (matrix_id_tab[i].name[2] - '0')) { | |
1161 | strlcat(tmp, matrix_id_tab[i].name, sizeof(tmp)); | |
1162 | break; | |
1163 | } | |
1164 | } | |
1165 | ||
1166 | if (strlen(tmp) == 0) | |
1167 | return (0); | |
1168 | ||
1169 | strlcpy(buf, tmp, len); | |
1170 | ||
1171 | return (snd_str2afmt(buf)); | |
984263bc MD |
1172 | } |
1173 | ||
1174 | int | |
2a1ad637 | 1175 | chn_reset(struct pcm_channel *c, uint32_t fmt, uint32_t spd) |
984263bc | 1176 | { |
2a1ad637 | 1177 | int r; |
984263bc MD |
1178 | |
1179 | CHN_LOCKASSERT(c); | |
2a1ad637 | 1180 | c->feedcount = 0; |
984263bc MD |
1181 | c->flags &= CHN_F_RESET; |
1182 | c->interrupts = 0; | |
2a1ad637 | 1183 | c->timeout = 1; |
984263bc MD |
1184 | c->xruns = 0; |
1185 | ||
2a1ad637 FT |
1186 | c->flags |= (pcm_getflags(c->dev) & SD_F_BITPERFECT) ? |
1187 | CHN_F_BITPERFECT : 0; | |
984263bc | 1188 | |
2a1ad637 FT |
1189 | r = CHANNEL_RESET(c->methods, c->devinfo); |
1190 | if (r == 0 && fmt != 0 && spd != 0) { | |
1191 | r = chn_setparam(c, fmt, spd); | |
1192 | fmt = 0; | |
1193 | spd = 0; | |
984263bc | 1194 | } |
2a1ad637 FT |
1195 | if (r == 0 && fmt != 0) |
1196 | r = chn_setformat(c, fmt); | |
1197 | if (r == 0 && spd != 0) | |
1198 | r = chn_setspeed(c, spd); | |
984263bc | 1199 | if (r == 0) |
2a1ad637 | 1200 | r = chn_setlatency(c, chn_latency); |
984263bc MD |
1201 | if (r == 0) { |
1202 | chn_resetbuf(c); | |
1203 | r = CHANNEL_RESETDONE(c->methods, c->devinfo); | |
1204 | } | |
1205 | return r; | |
1206 | } | |
1207 | ||
1208 | int | |
558a398b | 1209 | chn_init(struct pcm_channel *c, void *devinfo, int dir, int direction) |
984263bc MD |
1210 | { |
1211 | struct feeder_class *fc; | |
1212 | struct snd_dbuf *b, *bs; | |
2a1ad637 FT |
1213 | int i, ret; |
1214 | ||
1215 | if (chn_timeout < CHN_TIMEOUT_MIN || chn_timeout > CHN_TIMEOUT_MAX) | |
1216 | chn_timeout = CHN_TIMEOUT; | |
984263bc | 1217 | |
558a398b | 1218 | chn_lockinit(c, dir); |
984263bc MD |
1219 | |
1220 | b = NULL; | |
1221 | bs = NULL; | |
2a1ad637 FT |
1222 | CHN_INIT(c, children); |
1223 | CHN_INIT(c, children.busy); | |
984263bc MD |
1224 | c->devinfo = NULL; |
1225 | c->feeder = NULL; | |
2a1ad637 FT |
1226 | c->latency = -1; |
1227 | c->timeout = 1; | |
984263bc | 1228 | |
558a398b SS |
1229 | ret = ENOMEM; |
1230 | b = sndbuf_create(c->dev, c->name, "primary", c); | |
1231 | if (b == NULL) | |
1232 | goto out; | |
1233 | bs = sndbuf_create(c->dev, c->name, "secondary", c); | |
1234 | if (bs == NULL) | |
1235 | goto out; | |
1236 | ||
1237 | CHN_LOCK(c); | |
1238 | ||
984263bc MD |
1239 | ret = EINVAL; |
1240 | fc = feeder_getclass(NULL); | |
1241 | if (fc == NULL) | |
1242 | goto out; | |
1243 | if (chn_addfeeder(c, fc, NULL)) | |
1244 | goto out; | |
1245 | ||
558a398b SS |
1246 | /* |
1247 | * XXX - sndbuf_setup() & sndbuf_resize() expect to be called | |
1248 | * with the channel unlocked because they are also called | |
1249 | * from driver methods that don't know about locking | |
1250 | */ | |
1251 | CHN_UNLOCK(c); | |
984263bc | 1252 | sndbuf_setup(bs, NULL, 0); |
558a398b | 1253 | CHN_LOCK(c); |
984263bc MD |
1254 | c->bufhard = b; |
1255 | c->bufsoft = bs; | |
1256 | c->flags = 0; | |
1257 | c->feederflags = 0; | |
2a1ad637 FT |
1258 | c->sm = NULL; |
1259 | c->format = SND_FORMAT(AFMT_U8, 1, 0); | |
1260 | c->speed = DSP_DEFAULT_SPEED; | |
1261 | ||
1262 | c->matrix = *feeder_matrix_id_map(SND_CHN_MATRIX_1_0); | |
1263 | c->matrix.id = SND_CHN_MATRIX_PCMCHANNEL; | |
1264 | ||
1265 | for (i = 0; i < SND_CHN_T_MAX; i++) { | |
1266 | c->volume[SND_VOL_C_MASTER][i] = SND_VOL_0DB_MASTER; | |
1267 | } | |
1268 | ||
1269 | c->volume[SND_VOL_C_MASTER][SND_CHN_T_VOL_0DB] = SND_VOL_0DB_MASTER; | |
1270 | c->volume[SND_VOL_C_PCM][SND_CHN_T_VOL_0DB] = chn_vol_0db_pcm; | |
1271 | ||
1272 | chn_vpc_reset(c, SND_VOL_C_PCM, 1); | |
984263bc MD |
1273 | |
1274 | ret = ENODEV; | |
2a1ad637 | 1275 | CHN_UNLOCK(c); /* XXX - Unlock for CHANNEL_INIT() malloc() call */ |
558a398b SS |
1276 | c->devinfo = CHANNEL_INIT(c->methods, devinfo, b, c, direction); |
1277 | CHN_LOCK(c); | |
984263bc MD |
1278 | if (c->devinfo == NULL) |
1279 | goto out; | |
1280 | ||
1281 | ret = ENOMEM; | |
1282 | if ((sndbuf_getsize(b) == 0) && ((c->flags & CHN_F_VIRTUAL) == 0)) | |
1283 | goto out; | |
1284 | ||
2a1ad637 FT |
1285 | ret = 0; |
1286 | c->direction = direction; | |
984263bc | 1287 | |
2a1ad637 FT |
1288 | sndbuf_setfmt(b, c->format); |
1289 | sndbuf_setspd(b, c->speed); | |
1290 | sndbuf_setfmt(bs, c->format); | |
1291 | sndbuf_setspd(bs, c->speed); | |
34e3e97f | 1292 | |
2a1ad637 FT |
1293 | /** |
1294 | * @todo Should this be moved somewhere else? The primary buffer | |
1295 | * is allocated by the driver or via DMA map setup, and tmpbuf | |
1296 | * seems to only come into existence in sndbuf_resize(). | |
1297 | */ | |
1298 | if (c->direction == PCMDIR_PLAY) { | |
1299 | bs->sl = sndbuf_getmaxsize(bs); | |
4e8e900c | 1300 | bs->shadbuf = kmalloc(bs->sl, M_DEVBUF, M_WAITOK | M_ZERO); |
2a1ad637 FT |
1301 | if (bs->shadbuf == NULL) { |
1302 | ret = ENOMEM; | |
1303 | goto out; | |
1304 | } | |
1305 | } | |
984263bc MD |
1306 | |
1307 | out: | |
558a398b | 1308 | CHN_UNLOCK(c); |
984263bc MD |
1309 | if (ret) { |
1310 | if (c->devinfo) { | |
1311 | if (CHANNEL_FREE(c->methods, c->devinfo)) | |
1312 | sndbuf_free(b); | |
1313 | } | |
1314 | if (bs) | |
1315 | sndbuf_destroy(bs); | |
1316 | if (b) | |
1317 | sndbuf_destroy(b); | |
2a1ad637 | 1318 | CHN_LOCK(c); |
984263bc MD |
1319 | c->flags |= CHN_F_DEAD; |
1320 | chn_lockdestroy(c); | |
1321 | ||
1322 | return ret; | |
1323 | } | |
1324 | ||
984263bc MD |
1325 | return 0; |
1326 | } | |
1327 | ||
1328 | int | |
1329 | chn_kill(struct pcm_channel *c) | |
1330 | { | |
1331 | struct snd_dbuf *b = c->bufhard; | |
1332 | struct snd_dbuf *bs = c->bufsoft; | |
1333 | ||
2a1ad637 FT |
1334 | if (CHN_STARTED(c)) { |
1335 | CHN_LOCK(c); | |
984263bc | 1336 | chn_trigger(c, PCMTRIG_ABORT); |
2a1ad637 FT |
1337 | CHN_UNLOCK(c); |
1338 | } | |
1339 | while (chn_removefeeder(c) == 0) | |
1340 | ; | |
984263bc MD |
1341 | if (CHANNEL_FREE(c->methods, c->devinfo)) |
1342 | sndbuf_free(b); | |
984263bc MD |
1343 | sndbuf_destroy(bs); |
1344 | sndbuf_destroy(b); | |
2a1ad637 FT |
1345 | CHN_LOCK(c); |
1346 | c->flags |= CHN_F_DEAD; | |
984263bc | 1347 | chn_lockdestroy(c); |
2a1ad637 FT |
1348 | |
1349 | return (0); | |
984263bc MD |
1350 | } |
1351 | ||
2a1ad637 | 1352 | /* XXX Obsolete. Use *_matrix() variant instead. */ |
984263bc | 1353 | int |
2a1ad637 | 1354 | chn_setvolume(struct pcm_channel *c, int left, int right) |
984263bc | 1355 | { |
2a1ad637 | 1356 | int ret; |
984263bc | 1357 | |
2a1ad637 FT |
1358 | ret = chn_setvolume_matrix(c, SND_VOL_C_MASTER, SND_CHN_T_FL, left); |
1359 | ret |= chn_setvolume_matrix(c, SND_VOL_C_MASTER, SND_CHN_T_FR, | |
1360 | right) << 8; | |
1361 | ||
1362 | return (ret); | |
984263bc MD |
1363 | } |
1364 | ||
1365 | int | |
2a1ad637 FT |
1366 | chn_setvolume_multi(struct pcm_channel *c, int vc, int left, int right, |
1367 | int center) | |
984263bc | 1368 | { |
2a1ad637 | 1369 | int i, ret; |
984263bc | 1370 | |
2a1ad637 | 1371 | ret = 0; |
984263bc | 1372 | |
2a1ad637 FT |
1373 | for (i = 0; i < SND_CHN_T_MAX; i++) { |
1374 | if ((1 << i) & SND_CHN_LEFT_MASK) | |
1375 | ret |= chn_setvolume_matrix(c, vc, i, left); | |
1376 | else if ((1 << i) & SND_CHN_RIGHT_MASK) | |
1377 | ret |= chn_setvolume_matrix(c, vc, i, right) << 8; | |
984263bc | 1378 | else |
2a1ad637 FT |
1379 | ret |= chn_setvolume_matrix(c, vc, i, center) << 16; |
1380 | } | |
984263bc | 1381 | |
2a1ad637 FT |
1382 | return (ret); |
1383 | } | |
984263bc | 1384 | |
2a1ad637 FT |
1385 | int |
1386 | chn_setvolume_matrix(struct pcm_channel *c, int vc, int vt, int val) | |
1387 | { | |
1388 | int i; | |
984263bc | 1389 | |
2a1ad637 FT |
1390 | KASSERT(c != NULL && vc >= SND_VOL_C_MASTER && vc < SND_VOL_C_MAX && |
1391 | (vc == SND_VOL_C_MASTER || (vc & 1)) && | |
1392 | (vt == SND_CHN_T_VOL_0DB || (vt >= SND_CHN_T_BEGIN && | |
1393 | vt <= SND_CHN_T_END)) && (vt != SND_CHN_T_VOL_0DB || | |
1394 | (val >= SND_VOL_0DB_MIN && val <= SND_VOL_0DB_MAX)), | |
1395 | ("%s(): invalid volume matrix c=%p vc=%d vt=%d val=%d", | |
1396 | __func__, c, vc, vt, val)); | |
1397 | CHN_LOCKASSERT(c); | |
984263bc | 1398 | |
2a1ad637 FT |
1399 | if (val < 0) |
1400 | val = 0; | |
1401 | if (val > 100) | |
1402 | val = 100; | |
984263bc | 1403 | |
2a1ad637 | 1404 | c->volume[vc][vt] = val; |
984263bc | 1405 | |
2a1ad637 FT |
1406 | /* |
1407 | * Do relative calculation here and store it into class + 1 | |
1408 | * to ease the job of feeder_volume. | |
1409 | */ | |
1410 | if (vc == SND_VOL_C_MASTER) { | |
1411 | for (vc = SND_VOL_C_BEGIN; vc <= SND_VOL_C_END; | |
1412 | vc += SND_VOL_C_STEP) | |
1413 | c->volume[SND_VOL_C_VAL(vc)][vt] = | |
1414 | SND_VOL_CALC_VAL(c->volume, vc, vt); | |
1415 | } else if (vc & 1) { | |
1416 | if (vt == SND_CHN_T_VOL_0DB) | |
1417 | for (i = SND_CHN_T_BEGIN; i <= SND_CHN_T_END; | |
1418 | i += SND_CHN_T_STEP) { | |
1419 | c->volume[SND_VOL_C_VAL(vc)][i] = | |
1420 | SND_VOL_CALC_VAL(c->volume, vc, i); | |
1421 | } | |
1422 | else | |
1423 | c->volume[SND_VOL_C_VAL(vc)][vt] = | |
1424 | SND_VOL_CALC_VAL(c->volume, vc, vt); | |
1425 | } | |
1426 | ||
1427 | return (val); | |
984263bc MD |
1428 | } |
1429 | ||
1430 | int | |
2a1ad637 | 1431 | chn_getvolume_matrix(struct pcm_channel *c, int vc, int vt) |
984263bc | 1432 | { |
2a1ad637 FT |
1433 | KASSERT(c != NULL && vc >= SND_VOL_C_MASTER && vc < SND_VOL_C_MAX && |
1434 | (vt == SND_CHN_T_VOL_0DB || | |
1435 | (vt >= SND_CHN_T_BEGIN && vt <= SND_CHN_T_END)), | |
1436 | ("%s(): invalid volume matrix c=%p vc=%d vt=%d", | |
1437 | __func__, c, vc, vt)); | |
1438 | CHN_LOCKASSERT(c); | |
984263bc | 1439 | |
2a1ad637 | 1440 | return (c->volume[vc][vt]); |
984263bc MD |
1441 | } |
1442 | ||
2a1ad637 FT |
1443 | struct pcmchan_matrix * |
1444 | chn_getmatrix(struct pcm_channel *c) | |
984263bc | 1445 | { |
984263bc | 1446 | |
2a1ad637 | 1447 | KASSERT(c != NULL, ("%s(): NULL channel", __func__)); |
984263bc | 1448 | CHN_LOCKASSERT(c); |
2a1ad637 FT |
1449 | |
1450 | if (!(c->format & AFMT_CONVERTIBLE)) | |
1451 | return (NULL); | |
1452 | ||
1453 | return (&c->matrix); | |
984263bc MD |
1454 | } |
1455 | ||
1456 | int | |
2a1ad637 | 1457 | chn_setmatrix(struct pcm_channel *c, struct pcmchan_matrix *m) |
984263bc | 1458 | { |
984263bc | 1459 | |
2a1ad637 FT |
1460 | KASSERT(c != NULL && m != NULL, |
1461 | ("%s(): NULL channel or matrix", __func__)); | |
1462 | CHN_LOCKASSERT(c); | |
984263bc | 1463 | |
2a1ad637 FT |
1464 | if (!(c->format & AFMT_CONVERTIBLE)) |
1465 | return (EINVAL); | |
b760b3ce | 1466 | |
2a1ad637 FT |
1467 | c->matrix = *m; |
1468 | c->matrix.id = SND_CHN_MATRIX_PCMCHANNEL; | |
1469 | ||
1470 | return (chn_setformat(c, SND_FORMAT(c->format, m->channels, m->ext))); | |
558a398b SS |
1471 | } |
1472 | ||
1473 | /* | |
2a1ad637 | 1474 | * XXX chn_oss_* exists for the sake of compatibility. |
558a398b | 1475 | */ |
984263bc | 1476 | int |
2a1ad637 | 1477 | chn_oss_getorder(struct pcm_channel *c, unsigned long long *map) |
984263bc | 1478 | { |
984263bc | 1479 | |
2a1ad637 FT |
1480 | KASSERT(c != NULL && map != NULL, |
1481 | ("%s(): NULL channel or map", __func__)); | |
984263bc | 1482 | CHN_LOCKASSERT(c); |
984263bc | 1483 | |
2a1ad637 FT |
1484 | if (!(c->format & AFMT_CONVERTIBLE)) |
1485 | return (EINVAL); | |
984263bc | 1486 | |
2a1ad637 FT |
1487 | return (feeder_matrix_oss_get_channel_order(&c->matrix, map)); |
1488 | } | |
984263bc | 1489 | |
2a1ad637 FT |
1490 | int |
1491 | chn_oss_setorder(struct pcm_channel *c, unsigned long long *map) | |
1492 | { | |
1493 | struct pcmchan_matrix m; | |
1494 | int ret; | |
984263bc | 1495 | |
2a1ad637 FT |
1496 | KASSERT(c != NULL && map != NULL, |
1497 | ("%s(): NULL channel or map", __func__)); | |
1498 | CHN_LOCKASSERT(c); | |
984263bc | 1499 | |
2a1ad637 FT |
1500 | if (!(c->format & AFMT_CONVERTIBLE)) |
1501 | return (EINVAL); | |
984263bc | 1502 | |
2a1ad637 FT |
1503 | m = c->matrix; |
1504 | ret = feeder_matrix_oss_set_channel_order(&m, map); | |
1505 | if (ret != 0) | |
1506 | return (ret); | |
984263bc | 1507 | |
2a1ad637 | 1508 | return (chn_setmatrix(c, &m)); |
984263bc MD |
1509 | } |
1510 | ||
2a1ad637 FT |
1511 | #define SND_CHN_OSS_FRONT (SND_CHN_T_MASK_FL | SND_CHN_T_MASK_FR) |
1512 | #define SND_CHN_OSS_SURR (SND_CHN_T_MASK_SL | SND_CHN_T_MASK_SR) | |
1513 | #define SND_CHN_OSS_CENTER_LFE (SND_CHN_T_MASK_FC | SND_CHN_T_MASK_LF) | |
1514 | #define SND_CHN_OSS_REAR (SND_CHN_T_MASK_BL | SND_CHN_T_MASK_BR) | |
1515 | ||
984263bc | 1516 | int |
2a1ad637 | 1517 | chn_oss_getmask(struct pcm_channel *c, uint32_t *retmask) |
984263bc | 1518 | { |
2a1ad637 FT |
1519 | struct pcmchan_matrix *m; |
1520 | struct pcmchan_caps *caps; | |
1521 | uint32_t i, format; | |
984263bc | 1522 | |
2a1ad637 FT |
1523 | KASSERT(c != NULL && retmask != NULL, |
1524 | ("%s(): NULL channel or retmask", __func__)); | |
984263bc | 1525 | CHN_LOCKASSERT(c); |
984263bc | 1526 | |
2a1ad637 FT |
1527 | caps = chn_getcaps(c); |
1528 | if (caps == NULL || caps->fmtlist == NULL) | |
1529 | return (ENODEV); | |
1530 | ||
1531 | for (i = 0; caps->fmtlist[i] != 0; i++) { | |
1532 | format = caps->fmtlist[i]; | |
1533 | if (!(format & AFMT_CONVERTIBLE)) { | |
1534 | *retmask |= DSP_BIND_SPDIF; | |
1535 | continue; | |
1536 | } | |
1537 | m = CHANNEL_GETMATRIX(c->methods, c->devinfo, format); | |
1538 | if (m == NULL) | |
1539 | continue; | |
1540 | if (m->mask & SND_CHN_OSS_FRONT) | |
1541 | *retmask |= DSP_BIND_FRONT; | |
1542 | if (m->mask & SND_CHN_OSS_SURR) | |
1543 | *retmask |= DSP_BIND_SURR; | |
1544 | if (m->mask & SND_CHN_OSS_CENTER_LFE) | |
1545 | *retmask |= DSP_BIND_CENTER_LFE; | |
1546 | if (m->mask & SND_CHN_OSS_REAR) | |
1547 | *retmask |= DSP_BIND_REAR; | |
1548 | } | |
1549 | ||
1550 | /* report software-supported binding mask */ | |
1551 | if (!CHN_BITPERFECT(c) && report_soft_matrix) | |
1552 | *retmask |= DSP_BIND_FRONT | DSP_BIND_SURR | | |
1553 | DSP_BIND_CENTER_LFE | DSP_BIND_REAR; | |
1554 | ||
1555 | return (0); | |
984263bc MD |
1556 | } |
1557 | ||
2a1ad637 FT |
1558 | void |
1559 | chn_vpc_reset(struct pcm_channel *c, int vc, int force) | |
984263bc | 1560 | { |
2a1ad637 | 1561 | int i; |
984263bc | 1562 | |
2a1ad637 FT |
1563 | KASSERT(c != NULL && vc >= SND_VOL_C_BEGIN && vc <= SND_VOL_C_END, |
1564 | ("%s(): invalid reset c=%p vc=%d", __func__, c, vc)); | |
984263bc | 1565 | CHN_LOCKASSERT(c); |
558a398b | 1566 | |
2a1ad637 FT |
1567 | if (force == 0 && chn_vpc_autoreset == 0) |
1568 | return; | |
1569 | ||
1570 | for (i = SND_CHN_T_BEGIN; i <= SND_CHN_T_END; i += SND_CHN_T_STEP) | |
1571 | CHN_SETVOLUME(c, vc, i, c->volume[vc][SND_CHN_T_VOL_0DB]); | |
984263bc MD |
1572 | } |
1573 | ||
2a1ad637 FT |
1574 | static u_int32_t |
1575 | round_pow2(u_int32_t v) | |
984263bc | 1576 | { |
2a1ad637 FT |
1577 | u_int32_t ret; |
1578 | ||
1579 | if (v < 2) | |
1580 | v = 2; | |
1581 | ret = 0; | |
1582 | while (v >> ret) | |
1583 | ret++; | |
1584 | ret = 1 << (ret - 1); | |
1585 | while (ret < v) | |
1586 | ret <<= 1; | |
1587 | return ret; | |
984263bc MD |
1588 | } |
1589 | ||
2a1ad637 FT |
1590 | static u_int32_t |
1591 | round_blksz(u_int32_t v, int round) | |
984263bc | 1592 | { |
2a1ad637 | 1593 | u_int32_t ret, tmp; |
984263bc | 1594 | |
2a1ad637 FT |
1595 | if (round < 1) |
1596 | round = 1; | |
984263bc | 1597 | |
2a1ad637 FT |
1598 | ret = min(round_pow2(v), CHN_2NDBUFMAXSIZE >> 1); |
1599 | ||
1600 | if (ret > v && (ret >> 1) > 0 && (ret >> 1) >= ((v * 3) >> 2)) | |
1601 | ret >>= 1; | |
1602 | ||
1603 | tmp = ret - (ret % round); | |
1604 | while (tmp < 16 || tmp < round) { | |
1605 | ret <<= 1; | |
1606 | tmp = ret - (ret % round); | |
1607 | } | |
1608 | ||
1609 | return ret; | |
1610 | } | |
1611 | ||
1612 | /* | |
1613 | * 4Front call it DSP Policy, while we call it "Latency Profile". The idea | |
1614 | * is to keep 2nd buffer short so that it doesn't cause long queue during | |
1615 | * buffer transfer. | |
1616 | * | |
1617 | * Latency reference table for 48khz stereo 16bit: (PLAY) | |
1618 | * | |
1619 | * +---------+------------+-----------+------------+ | |
1620 | * | Latency | Blockcount | Blocksize | Buffersize | | |
1621 | * +---------+------------+-----------+------------+ | |
1622 | * | 0 | 2 | 64 | 128 | | |
1623 | * +---------+------------+-----------+------------+ | |
1624 | * | 1 | 4 | 128 | 512 | | |
1625 | * +---------+------------+-----------+------------+ | |
1626 | * | 2 | 8 | 512 | 4096 | | |
1627 | * +---------+------------+-----------+------------+ | |
1628 | * | 3 | 16 | 512 | 8192 | | |
1629 | * +---------+------------+-----------+------------+ | |
1630 | * | 4 | 32 | 512 | 16384 | | |
1631 | * +---------+------------+-----------+------------+ | |
1632 | * | 5 | 32 | 1024 | 32768 | | |
1633 | * +---------+------------+-----------+------------+ | |
1634 | * | 6 | 16 | 2048 | 32768 | | |
1635 | * +---------+------------+-----------+------------+ | |
1636 | * | 7 | 8 | 4096 | 32768 | | |
1637 | * +---------+------------+-----------+------------+ | |
1638 | * | 8 | 4 | 8192 | 32768 | | |
1639 | * +---------+------------+-----------+------------+ | |
1640 | * | 9 | 2 | 16384 | 32768 | | |
1641 | * +---------+------------+-----------+------------+ | |
1642 | * | 10 | 2 | 32768 | 65536 | | |
1643 | * +---------+------------+-----------+------------+ | |
1644 | * | |
1645 | * Recording need a different reference table. All we care is | |
1646 | * gobbling up everything within reasonable buffering threshold. | |
1647 | * | |
1648 | * Latency reference table for 48khz stereo 16bit: (REC) | |
1649 | * | |
1650 | * +---------+------------+-----------+------------+ | |
1651 | * | Latency | Blockcount | Blocksize | Buffersize | | |
1652 | * +---------+------------+-----------+------------+ | |
1653 | * | 0 | 512 | 32 | 16384 | | |
1654 | * +---------+------------+-----------+------------+ | |
1655 | * | 1 | 256 | 64 | 16384 | | |
1656 | * +---------+------------+-----------+------------+ | |
1657 | * | 2 | 128 | 128 | 16384 | | |
1658 | * +---------+------------+-----------+------------+ | |
1659 | * | 3 | 64 | 256 | 16384 | | |
1660 | * +---------+------------+-----------+------------+ | |
1661 | * | 4 | 32 | 512 | 16384 | | |
1662 | * +---------+------------+-----------+------------+ | |
1663 | * | 5 | 32 | 1024 | 32768 | | |
1664 | * +---------+------------+-----------+------------+ | |
1665 | * | 6 | 16 | 2048 | 32768 | | |
1666 | * +---------+------------+-----------+------------+ | |
1667 | * | 7 | 8 | 4096 | 32768 | | |
1668 | * +---------+------------+-----------+------------+ | |
1669 | * | 8 | 4 | 8192 | 32768 | | |
1670 | * +---------+------------+-----------+------------+ | |
1671 | * | 9 | 2 | 16384 | 32768 | | |
1672 | * +---------+------------+-----------+------------+ | |
1673 | * | 10 | 2 | 32768 | 65536 | | |
1674 | * +---------+------------+-----------+------------+ | |
1675 | * | |
1676 | * Calculations for other data rate are entirely based on these reference | |
1677 | * tables. For normal operation, Latency 5 seems give the best, well | |
1678 | * balanced performance for typical workload. Anything below 5 will | |
1679 | * eat up CPU to keep up with increasing context switches because of | |
1680 | * shorter buffer space and usually require the application to handle it | |
1681 | * aggresively through possibly real time programming technique. | |
1682 | * | |
1683 | */ | |
1684 | #define CHN_LATENCY_PBLKCNT_REF \ | |
1685 | {{1, 2, 3, 4, 5, 5, 4, 3, 2, 1, 1}, \ | |
1686 | {1, 2, 3, 4, 5, 5, 4, 3, 2, 1, 1}} | |
1687 | #define CHN_LATENCY_PBUFSZ_REF \ | |
1688 | {{7, 9, 12, 13, 14, 15, 15, 15, 15, 15, 16}, \ | |
1689 | {11, 12, 13, 14, 15, 16, 16, 16, 16, 16, 17}} | |
1690 | ||
1691 | #define CHN_LATENCY_RBLKCNT_REF \ | |
1692 | {{9, 8, 7, 6, 5, 5, 4, 3, 2, 1, 1}, \ | |
1693 | {9, 8, 7, 6, 5, 5, 4, 3, 2, 1, 1}} | |
1694 | #define CHN_LATENCY_RBUFSZ_REF \ | |
1695 | {{14, 14, 14, 14, 14, 15, 15, 15, 15, 15, 16}, \ | |
1696 | {15, 15, 15, 15, 15, 16, 16, 16, 16, 16, 17}} | |
1697 | ||
1698 | #define CHN_LATENCY_DATA_REF 192000 /* 48khz stereo 16bit ~ 48000 x 2 x 2 */ | |
1699 | ||
1700 | static int | |
1701 | chn_calclatency(int dir, int latency, int bps, u_int32_t datarate, | |
1702 | u_int32_t max, int *rblksz, int *rblkcnt) | |
1703 | { | |
1704 | static int pblkcnts[CHN_LATENCY_PROFILE_MAX + 1][CHN_LATENCY_MAX + 1] = | |
1705 | CHN_LATENCY_PBLKCNT_REF; | |
1706 | static int pbufszs[CHN_LATENCY_PROFILE_MAX + 1][CHN_LATENCY_MAX + 1] = | |
1707 | CHN_LATENCY_PBUFSZ_REF; | |
1708 | static int rblkcnts[CHN_LATENCY_PROFILE_MAX + 1][CHN_LATENCY_MAX + 1] = | |
1709 | CHN_LATENCY_RBLKCNT_REF; | |
1710 | static int rbufszs[CHN_LATENCY_PROFILE_MAX + 1][CHN_LATENCY_MAX + 1] = | |
1711 | CHN_LATENCY_RBUFSZ_REF; | |
1712 | u_int32_t bufsz; | |
1713 | int lprofile, blksz, blkcnt; | |
1714 | ||
1715 | if (latency < CHN_LATENCY_MIN || latency > CHN_LATENCY_MAX || | |
1716 | bps < 1 || datarate < 1 || | |
1717 | !(dir == PCMDIR_PLAY || dir == PCMDIR_REC)) { | |
1718 | if (rblksz != NULL) | |
1719 | *rblksz = CHN_2NDBUFMAXSIZE >> 1; | |
1720 | if (rblkcnt != NULL) | |
1721 | *rblkcnt = 2; | |
67931cc4 | 1722 | kprintf("%s(): FAILED dir=%d latency=%d bps=%d " |
2a1ad637 FT |
1723 | "datarate=%u max=%u\n", |
1724 | __func__, dir, latency, bps, datarate, max); | |
1725 | return CHN_2NDBUFMAXSIZE; | |
1726 | } | |
1727 | ||
1728 | lprofile = chn_latency_profile; | |
984263bc | 1729 | |
2a1ad637 FT |
1730 | if (dir == PCMDIR_PLAY) { |
1731 | blkcnt = pblkcnts[lprofile][latency]; | |
1732 | bufsz = pbufszs[lprofile][latency]; | |
1733 | } else { | |
1734 | blkcnt = rblkcnts[lprofile][latency]; | |
1735 | bufsz = rbufszs[lprofile][latency]; | |
1736 | } | |
1737 | ||
1738 | bufsz = round_pow2(snd_xbytes(1 << bufsz, CHN_LATENCY_DATA_REF, | |
1739 | datarate)); | |
1740 | if (bufsz > max) | |
1741 | bufsz = max; | |
1742 | blksz = round_blksz(bufsz >> blkcnt, bps); | |
1743 | ||
1744 | if (rblksz != NULL) | |
1745 | *rblksz = blksz; | |
1746 | if (rblkcnt != NULL) | |
1747 | *rblkcnt = 1 << blkcnt; | |
1748 | ||
1749 | return blksz << blkcnt; | |
984263bc MD |
1750 | } |
1751 | ||
1752 | static int | |
2a1ad637 FT |
1753 | chn_resizebuf(struct pcm_channel *c, int latency, |
1754 | int blkcnt, int blksz) | |
984263bc | 1755 | { |
2a1ad637 FT |
1756 | struct snd_dbuf *b, *bs, *pb; |
1757 | int sblksz, sblkcnt, hblksz, hblkcnt, limit = 0, nsblksz, nsblkcnt; | |
1758 | int ret; | |
984263bc MD |
1759 | |
1760 | CHN_LOCKASSERT(c); | |
984263bc | 1761 | |
2a1ad637 FT |
1762 | if ((c->flags & (CHN_F_MMAP | CHN_F_TRIGGERED)) || |
1763 | !(c->direction == PCMDIR_PLAY || c->direction == PCMDIR_REC)) | |
1764 | return EINVAL; | |
1765 | ||
1766 | if (latency == -1) { | |
1767 | c->latency = -1; | |
1768 | latency = chn_latency; | |
1769 | } else if (latency == -2) { | |
1770 | latency = c->latency; | |
1771 | if (latency < CHN_LATENCY_MIN || latency > CHN_LATENCY_MAX) | |
1772 | latency = chn_latency; | |
1773 | } else if (latency < CHN_LATENCY_MIN || latency > CHN_LATENCY_MAX) | |
1774 | return EINVAL; | |
1775 | else { | |
1776 | c->latency = latency; | |
1777 | } | |
984263bc | 1778 | |
2a1ad637 FT |
1779 | bs = c->bufsoft; |
1780 | b = c->bufhard; | |
1781 | ||
1782 | if (!(blksz == 0 || blkcnt == -1) && | |
1783 | (blksz < 16 || blksz < sndbuf_getalign(bs) || blkcnt < 2 || | |
1784 | (blksz * blkcnt) > CHN_2NDBUFMAXSIZE)) | |
1785 | return EINVAL; | |
984263bc | 1786 | |
2a1ad637 FT |
1787 | chn_calclatency(c->direction, latency, sndbuf_getalign(bs), |
1788 | sndbuf_getalign(bs) * sndbuf_getspd(bs), CHN_2NDBUFMAXSIZE, | |
1789 | &sblksz, &sblkcnt); | |
984263bc | 1790 | |
2a1ad637 FT |
1791 | if (blksz == 0 || blkcnt == -1) { |
1792 | if (blkcnt == -1) | |
1793 | c->flags &= ~CHN_F_HAS_SIZE; | |
1794 | if (c->flags & CHN_F_HAS_SIZE) { | |
1795 | blksz = sndbuf_getblksz(bs); | |
1796 | blkcnt = sndbuf_getblkcnt(bs); | |
984263bc | 1797 | } |
2a1ad637 FT |
1798 | } else |
1799 | c->flags |= CHN_F_HAS_SIZE; | |
1800 | ||
1801 | if (c->flags & CHN_F_HAS_SIZE) { | |
1802 | /* | |
1803 | * The application has requested their own blksz/blkcnt. | |
1804 | * Just obey with it, and let them toast alone. We can | |
1805 | * clamp it to the nearest latency profile, but that would | |
1806 | * defeat the purpose of having custom control. The least | |
1807 | * we can do is round it to the nearest ^2 and align it. | |
1808 | */ | |
1809 | sblksz = round_blksz(blksz, sndbuf_getalign(bs)); | |
1810 | sblkcnt = round_pow2(blkcnt); | |
1811 | } | |
1812 | ||
1813 | if (c->parentchannel != NULL) { | |
1814 | pb = c->parentchannel->bufsoft; | |
1815 | CHN_UNLOCK(c); | |
1816 | CHN_LOCK(c->parentchannel); | |
1817 | chn_notify(c->parentchannel, CHN_N_BLOCKSIZE); | |
1818 | CHN_UNLOCK(c->parentchannel); | |
1819 | CHN_LOCK(c); | |
1820 | if (c->direction == PCMDIR_PLAY) { | |
1821 | limit = (pb != NULL) ? | |
1822 | sndbuf_xbytes(sndbuf_getsize(pb), pb, bs) : 0; | |
558a398b | 1823 | } else { |
2a1ad637 FT |
1824 | limit = (pb != NULL) ? |
1825 | sndbuf_xbytes(sndbuf_getblksz(pb), pb, bs) * 2 : 0; | |
558a398b | 1826 | } |
2a1ad637 FT |
1827 | } else { |
1828 | hblkcnt = 2; | |
1829 | if (c->flags & CHN_F_HAS_SIZE) { | |
1830 | hblksz = round_blksz(sndbuf_xbytes(sblksz, bs, b), | |
1831 | sndbuf_getalign(b)); | |
1832 | hblkcnt = round_pow2(sndbuf_getblkcnt(bs)); | |
1833 | } else | |
1834 | chn_calclatency(c->direction, latency, | |
1835 | sndbuf_getalign(b), | |
1836 | sndbuf_getalign(b) * sndbuf_getspd(b), | |
1837 | CHN_2NDBUFMAXSIZE, &hblksz, &hblkcnt); | |
1838 | ||
1839 | if ((hblksz << 1) > sndbuf_getmaxsize(b)) | |
1840 | hblksz = round_blksz(sndbuf_getmaxsize(b) >> 1, | |
1841 | sndbuf_getalign(b)); | |
1842 | ||
1843 | while ((hblksz * hblkcnt) > sndbuf_getmaxsize(b)) { | |
1844 | if (hblkcnt < 4) | |
1845 | hblksz >>= 1; | |
1846 | else | |
1847 | hblkcnt >>= 1; | |
984263bc MD |
1848 | } |
1849 | ||
2a1ad637 | 1850 | hblksz -= hblksz % sndbuf_getalign(b); |
984263bc | 1851 | |
2a1ad637 FT |
1852 | #if 0 |
1853 | hblksz = sndbuf_getmaxsize(b) >> 1; | |
1854 | hblksz -= hblksz % sndbuf_getalign(b); | |
1855 | hblkcnt = 2; | |
1856 | #endif | |
984263bc | 1857 | |
2a1ad637 FT |
1858 | CHN_UNLOCK(c); |
1859 | if (chn_usefrags == 0 || | |
1860 | CHANNEL_SETFRAGMENTS(c->methods, c->devinfo, | |
1861 | hblksz, hblkcnt) != 0) | |
1862 | sndbuf_setblksz(b, CHANNEL_SETBLOCKSIZE(c->methods, | |
1863 | c->devinfo, hblksz)); | |
1864 | CHN_LOCK(c); | |
1865 | ||
1866 | if (!CHN_EMPTY(c, children)) { | |
1867 | nsblksz = round_blksz( | |
1868 | sndbuf_xbytes(sndbuf_getblksz(b), b, bs), | |
1869 | sndbuf_getalign(bs)); | |
1870 | nsblkcnt = sndbuf_getblkcnt(b); | |
1871 | if (c->direction == PCMDIR_PLAY) { | |
1872 | do { | |
1873 | nsblkcnt--; | |
1874 | } while (nsblkcnt >= 2 && | |
1875 | nsblksz * nsblkcnt >= sblksz * sblkcnt); | |
1876 | nsblkcnt++; | |
984263bc | 1877 | } |
2a1ad637 FT |
1878 | sblksz = nsblksz; |
1879 | sblkcnt = nsblkcnt; | |
1880 | limit = 0; | |
1881 | } else | |
1882 | limit = sndbuf_xbytes(sndbuf_getblksz(b), b, bs) * 2; | |
1883 | } | |
984263bc | 1884 | |
2a1ad637 FT |
1885 | if (limit > CHN_2NDBUFMAXSIZE) |
1886 | limit = CHN_2NDBUFMAXSIZE; | |
984263bc | 1887 | |
2a1ad637 FT |
1888 | #if 0 |
1889 | while (limit > 0 && (sblksz * sblkcnt) > limit) { | |
1890 | if (sblkcnt < 4) | |
1891 | break; | |
1892 | sblkcnt >>= 1; | |
1893 | } | |
1894 | #endif | |
984263bc | 1895 | |
2a1ad637 FT |
1896 | while ((sblksz * sblkcnt) < limit) |
1897 | sblkcnt <<= 1; | |
984263bc | 1898 | |
2a1ad637 FT |
1899 | while ((sblksz * sblkcnt) > CHN_2NDBUFMAXSIZE) { |
1900 | if (sblkcnt < 4) | |
1901 | sblksz >>= 1; | |
1902 | else | |
1903 | sblkcnt >>= 1; | |
1904 | } | |
1905 | ||
1906 | sblksz -= sblksz % sndbuf_getalign(bs); | |
1907 | ||
1908 | if (sndbuf_getblkcnt(bs) != sblkcnt || sndbuf_getblksz(bs) != sblksz || | |
1909 | sndbuf_getsize(bs) != (sblkcnt * sblksz)) { | |
1910 | ret = sndbuf_remalloc(bs, sblkcnt, sblksz); | |
1911 | if (ret != 0) { | |
1912 | device_printf(c->dev, "%s(): Failed: %d %d\n", | |
1913 | __func__, sblkcnt, sblksz); | |
1914 | return ret; | |
984263bc MD |
1915 | } |
1916 | } | |
1917 | ||
2a1ad637 FT |
1918 | /* |
1919 | * Interrupt timeout | |
1920 | */ | |
1921 | c->timeout = ((u_int64_t)hz * sndbuf_getsize(bs)) / | |
1922 | ((u_int64_t)sndbuf_getspd(bs) * sndbuf_getalign(bs)); | |
1923 | if (c->parentchannel != NULL) | |
1924 | c->timeout = min(c->timeout, c->parentchannel->timeout); | |
1925 | if (c->timeout < 1) | |
1926 | c->timeout = 1; | |
1927 | ||
1928 | /* | |
1929 | * OSSv4 docs: "By default OSS will set the low water level equal | |
1930 | * to the fragment size which is optimal in most cases." | |
1931 | */ | |
1932 | c->lw = sndbuf_getblksz(bs); | |
1933 | chn_resetbuf(c); | |
1934 | ||
1935 | if (snd_verbose > 3) | |
1936 | device_printf(c->dev, "%s(): %s (%s) timeout=%u " | |
1937 | "b[%d/%d/%d] bs[%d/%d/%d] limit=%d\n", | |
1938 | __func__, CHN_DIRSTR(c), | |
1939 | (c->flags & CHN_F_VIRTUAL) ? "virtual" : "hardware", | |
1940 | c->timeout, | |
1941 | sndbuf_getsize(b), sndbuf_getblksz(b), | |
1942 | sndbuf_getblkcnt(b), | |
1943 | sndbuf_getsize(bs), sndbuf_getblksz(bs), | |
1944 | sndbuf_getblkcnt(bs), limit); | |
1945 | ||
1946 | return 0; | |
1947 | } | |
1948 | ||
1949 | int | |
1950 | chn_setlatency(struct pcm_channel *c, int latency) | |
1951 | { | |
1952 | CHN_LOCKASSERT(c); | |
1953 | /* Destroy blksz/blkcnt, enforce latency profile. */ | |
1954 | return chn_resizebuf(c, latency, -1, 0); | |
1955 | } | |
1956 | ||
1957 | int | |
1958 | chn_setblocksize(struct pcm_channel *c, int blkcnt, int blksz) | |
1959 | { | |
1960 | CHN_LOCKASSERT(c); | |
1961 | /* Destroy latency profile, enforce blksz/blkcnt */ | |
1962 | return chn_resizebuf(c, -1, blkcnt, blksz); | |
1963 | } | |
1964 | ||
1965 | int | |
1966 | chn_setparam(struct pcm_channel *c, uint32_t format, uint32_t speed) | |
1967 | { | |
1968 | struct pcmchan_caps *caps; | |
1969 | uint32_t hwspeed, delta; | |
1970 | int ret; | |
1971 | ||
1972 | CHN_LOCKASSERT(c); | |
1973 | ||
1974 | if (speed < 1 || format == 0 || CHN_STARTED(c)) | |
1975 | return (EINVAL); | |
1976 | ||
1977 | c->format = format; | |
1978 | c->speed = speed; | |
1979 | ||
1980 | caps = chn_getcaps(c); | |
1981 | ||
1982 | hwspeed = speed; | |
1983 | RANGE(hwspeed, caps->minspeed, caps->maxspeed); | |
1984 | ||
1985 | sndbuf_setspd(c->bufhard, CHANNEL_SETSPEED(c->methods, c->devinfo, | |
1986 | hwspeed)); | |
1987 | hwspeed = sndbuf_getspd(c->bufhard); | |
1988 | ||
1989 | delta = (hwspeed > speed) ? (hwspeed - speed) : (speed - hwspeed); | |
1990 | ||
1991 | if (delta <= feeder_rate_round) | |
1992 | c->speed = hwspeed; | |
984263bc | 1993 | |
2a1ad637 FT |
1994 | ret = feeder_chain(c); |
1995 | ||
1996 | if (ret == 0) | |
1997 | ret = CHANNEL_SETFORMAT(c->methods, c->devinfo, | |
1998 | sndbuf_getfmt(c->bufhard)); | |
1999 | ||
2000 | if (ret == 0) | |
2001 | ret = chn_resizebuf(c, -2, 0, 0); | |
2002 | ||
2003 | return (ret); | |
2004 | } | |
2005 | ||
2006 | int | |
2007 | chn_setspeed(struct pcm_channel *c, uint32_t speed) | |
2008 | { | |
2009 | uint32_t oldformat, oldspeed, format; | |
2010 | int ret; | |
2011 | ||
2012 | #if 0 | |
2013 | /* XXX force 48k */ | |
2014 | if (c->format & AFMT_PASSTHROUGH) | |
2015 | speed = AFMT_PASSTHROUGH_RATE; | |
2016 | #endif | |
2017 | ||
2018 | oldformat = c->format; | |
2019 | oldspeed = c->speed; | |
2020 | format = oldformat; | |
2021 | ||
2022 | ret = chn_setparam(c, format, speed); | |
2023 | if (ret != 0) { | |
2024 | if (snd_verbose > 3) | |
2025 | device_printf(c->dev, | |
2026 | "%s(): Setting speed %d failed, " | |
2027 | "falling back to %d\n", | |
2028 | __func__, speed, oldspeed); | |
2029 | chn_setparam(c, c->format, oldspeed); | |
558a398b | 2030 | } |
984263bc | 2031 | |
2a1ad637 FT |
2032 | return (ret); |
2033 | } | |
984263bc | 2034 | |
2a1ad637 FT |
2035 | int |
2036 | chn_setformat(struct pcm_channel *c, uint32_t format) | |
2037 | { | |
2038 | uint32_t oldformat, oldspeed, speed; | |
2039 | int ret; | |
4886ec58 | 2040 | |
2a1ad637 FT |
2041 | /* XXX force stereo */ |
2042 | if ((format & AFMT_PASSTHROUGH) && AFMT_CHANNEL(format) < 2) { | |
2043 | format = SND_FORMAT(format, AFMT_PASSTHROUGH_CHANNEL, | |
2044 | AFMT_PASSTHROUGH_EXTCHANNEL); | |
2045 | } | |
558a398b | 2046 | |
2a1ad637 FT |
2047 | oldformat = c->format; |
2048 | oldspeed = c->speed; | |
2049 | speed = oldspeed; | |
2050 | ||
2051 | ret = chn_setparam(c, format, speed); | |
2052 | if (ret != 0) { | |
2053 | if (snd_verbose > 3) | |
2054 | device_printf(c->dev, | |
2055 | "%s(): Format change 0x%08x failed, " | |
2056 | "falling back to 0x%08x\n", | |
2057 | __func__, format, oldformat); | |
2058 | chn_setparam(c, oldformat, oldspeed); | |
2059 | } | |
2060 | ||
2061 | return (ret); | |
2062 | } | |
2063 | ||
2064 | void | |
2065 | chn_syncstate(struct pcm_channel *c) | |
2066 | { | |
2067 | struct snddev_info *d; | |
2068 | struct snd_mixer *m; | |
2069 | ||
2070 | d = (c != NULL) ? c->parentsnddev : NULL; | |
2071 | m = (d != NULL && d->mixer_dev != NULL) ? d->mixer_dev->si_drv1 : | |
2072 | NULL; | |
2073 | ||
2074 | if (d == NULL || m == NULL) | |
2075 | return; | |
2076 | ||
2077 | CHN_LOCKASSERT(c); | |
2078 | ||
2079 | if (c->feederflags & (1 << FEEDER_VOLUME)) { | |
2080 | uint32_t parent; | |
2081 | int vol, pvol, left, right, center; | |
2082 | ||
2083 | if (c->direction == PCMDIR_PLAY && | |
2084 | (d->flags & SD_F_SOFTPCMVOL)) { | |
2085 | /* CHN_UNLOCK(c); */ | |
2086 | vol = mix_get(m, SOUND_MIXER_PCM); | |
2087 | parent = mix_getparent(m, SOUND_MIXER_PCM); | |
2088 | if (parent != SOUND_MIXER_NONE) | |
2089 | pvol = mix_get(m, parent); | |
2090 | else | |
2091 | pvol = 100 | (100 << 8); | |
2092 | /* CHN_LOCK(c); */ | |
2093 | } else { | |
4886ec58 | 2094 | vol = 100 | (100 << 8); |
2a1ad637 | 2095 | pvol = vol; |
4886ec58 HT |
2096 | } |
2097 | ||
2a1ad637 FT |
2098 | if (vol == -1) { |
2099 | device_printf(c->dev, | |
2100 | "Soft PCM Volume: Failed to read pcm " | |
2101 | "default value\n"); | |
2102 | vol = 100 | (100 << 8); | |
2103 | } | |
2104 | ||
2105 | if (pvol == -1) { | |
2106 | device_printf(c->dev, | |
2107 | "Soft PCM Volume: Failed to read parent " | |
2108 | "default value\n"); | |
2109 | pvol = 100 | (100 << 8); | |
2110 | } | |
2111 | ||
2112 | left = ((vol & 0x7f) * (pvol & 0x7f)) / 100; | |
2113 | right = (((vol >> 8) & 0x7f) * ((pvol >> 8) & 0x7f)) / 100; | |
2114 | center = (left + right) >> 1; | |
2115 | ||
2116 | chn_setvolume_multi(c, SND_VOL_C_MASTER, left, right, center); | |
558a398b SS |
2117 | } |
2118 | ||
2a1ad637 FT |
2119 | if (c->feederflags & (1 << FEEDER_EQ)) { |
2120 | struct pcm_feeder *f; | |
2121 | int treble, bass, state; | |
2122 | ||
2123 | /* CHN_UNLOCK(c); */ | |
2124 | treble = mix_get(m, SOUND_MIXER_TREBLE); | |
2125 | bass = mix_get(m, SOUND_MIXER_BASS); | |
2126 | /* CHN_LOCK(c); */ | |
2127 | ||
2128 | if (treble == -1) | |
2129 | treble = 50; | |
2130 | else | |
2131 | treble = ((treble & 0x7f) + | |
2132 | ((treble >> 8) & 0x7f)) >> 1; | |
2133 | ||
2134 | if (bass == -1) | |
2135 | bass = 50; | |
2136 | else | |
2137 | bass = ((bass & 0x7f) + ((bass >> 8) & 0x7f)) >> 1; | |
2138 | ||
2139 | f = chn_findfeeder(c, FEEDER_EQ); | |
2140 | if (f != NULL) { | |
2141 | if (FEEDER_SET(f, FEEDEQ_TREBLE, treble) != 0) | |
2142 | device_printf(c->dev, | |
2143 | "EQ: Failed to set treble -- %d\n", | |
2144 | treble); | |
2145 | if (FEEDER_SET(f, FEEDEQ_BASS, bass) != 0) | |
2146 | device_printf(c->dev, | |
2147 | "EQ: Failed to set bass -- %d\n", | |
2148 | bass); | |
2149 | if (FEEDER_SET(f, FEEDEQ_PREAMP, d->eqpreamp) != 0) | |
2150 | device_printf(c->dev, | |
2151 | "EQ: Failed to set preamp -- %d\n", | |
2152 | d->eqpreamp); | |
2153 | if (d->flags & SD_F_EQ_BYPASSED) | |
2154 | state = FEEDEQ_BYPASS; | |
2155 | else if (d->flags & SD_F_EQ_ENABLED) | |
2156 | state = FEEDEQ_ENABLE; | |
2157 | else | |
2158 | state = FEEDEQ_DISABLE; | |
2159 | if (FEEDER_SET(f, FEEDEQ_STATE, state) != 0) | |
2160 | device_printf(c->dev, | |
2161 | "EQ: Failed to set state -- %d\n", state); | |
2162 | } | |
2163 | } | |
984263bc MD |
2164 | } |
2165 | ||
2166 | int | |
2a1ad637 | 2167 | chn_trigger(struct pcm_channel *c, int go) |
984263bc | 2168 | { |
2a1ad637 FT |
2169 | #ifdef DEV_ISA |
2170 | struct snd_dbuf *b = c->bufhard; | |
2171 | #endif | |
2172 | struct snddev_info *d = c->parentsnddev; | |
2173 | int ret; | |
984263bc | 2174 | |
2a1ad637 FT |
2175 | CHN_LOCKASSERT(c); |
2176 | #ifdef DEV_ISA | |
2177 | if (SND_DMA(b) && (go == PCMTRIG_EMLDMAWR || go == PCMTRIG_EMLDMARD)) | |
2178 | sndbuf_dmabounce(b); | |
2179 | #endif | |
2180 | if (!PCMTRIG_COMMON(go)) | |
2181 | return (CHANNEL_TRIGGER(c->methods, c->devinfo, go)); | |
558a398b | 2182 | |
2a1ad637 FT |
2183 | if (go == c->trigger) |
2184 | return (0); | |
2185 | ||
2186 | ret = CHANNEL_TRIGGER(c->methods, c->devinfo, go); | |
2187 | if (ret != 0) | |
2188 | return (ret); | |
2189 | ||
2190 | switch (go) { | |
2191 | case PCMTRIG_START: | |
2192 | if (snd_verbose > 3) | |
2193 | device_printf(c->dev, | |
2194 | "%s() %s: calling go=0x%08x , " | |
2195 | "prev=0x%08x\n", __func__, c->name, go, | |
2196 | c->trigger); | |
2197 | if (c->trigger != PCMTRIG_START) { | |
2198 | c->trigger = go; | |
2199 | CHN_UNLOCK(c); | |
2200 | PCM_LOCK(d); | |
2201 | CHN_INSERT_HEAD(d, c, channels.pcm.busy); | |
2202 | PCM_UNLOCK(d); | |
2203 | CHN_LOCK(c); | |
2204 | chn_syncstate(c); | |
2205 | } | |
2206 | break; | |
2207 | case PCMTRIG_STOP: | |
2208 | case PCMTRIG_ABORT: | |
2209 | if (snd_verbose > 3) | |
2210 | device_printf(c->dev, | |
2211 | "%s() %s: calling go=0x%08x , " | |
2212 | "prev=0x%08x\n", __func__, c->name, go, | |
2213 | c->trigger); | |
2214 | if (c->trigger == PCMTRIG_START) { | |
2215 | c->trigger = go; | |
2216 | CHN_UNLOCK(c); | |
2217 | PCM_LOCK(d); | |
2218 | CHN_REMOVE(d, c, channels.pcm.busy); | |
2219 | PCM_UNLOCK(d); | |
2220 | CHN_LOCK(c); | |
2221 | } | |
2222 | break; | |
2223 | default: | |
2224 | break; | |
558a398b | 2225 | } |
984263bc | 2226 | |
2a1ad637 FT |
2227 | return (0); |
2228 | } | |
2229 | ||
2230 | /** | |
2231 | * @brief Queries sound driver for sample-aligned hardware buffer pointer index | |
2232 | * | |
2233 | * This function obtains the hardware pointer location, then aligns it to | |
2234 | * the current bytes-per-sample value before returning. (E.g., a channel | |
2235 | * running in 16 bit stereo mode would require 4 bytes per sample, so a | |
2236 | * hwptr value ranging from 32-35 would be returned as 32.) | |
2237 | * | |
2238 | * @param c PCM channel context | |
2239 | * @returns sample-aligned hardware buffer pointer index | |
2240 | */ | |
2241 | int | |
2242 | chn_getptr(struct pcm_channel *c) | |
2243 | { | |
2244 | int hwptr; | |
2245 | ||
2246 | CHN_LOCKASSERT(c); | |
2247 | hwptr = (CHN_STARTED(c)) ? CHANNEL_GETPTR(c->methods, c->devinfo) : 0; | |
2248 | return (hwptr - (hwptr % sndbuf_getalign(c->bufhard))); | |
2249 | } | |
2250 | ||
2251 | struct pcmchan_caps * | |
2252 | chn_getcaps(struct pcm_channel *c) | |
2253 | { | |
2254 | CHN_LOCKASSERT(c); | |
2255 | return CHANNEL_GETCAPS(c->methods, c->devinfo); | |
2256 | } | |
2257 | ||
2258 | u_int32_t | |
2259 | chn_getformats(struct pcm_channel *c) | |
2260 | { | |
2261 | u_int32_t *fmtlist, fmts; | |
2262 | int i; | |
2263 | ||
2264 | fmtlist = chn_getcaps(c)->fmtlist; | |
2265 | fmts = 0; | |
2266 | for (i = 0; fmtlist[i]; i++) | |
2267 | fmts |= fmtlist[i]; | |
2268 | ||
2269 | /* report software-supported formats */ | |
2270 | if (!CHN_BITPERFECT(c) && report_soft_formats) | |
2271 | fmts |= AFMT_CONVERTIBLE; | |
2272 | ||
2273 | return (AFMT_ENCODING(fmts)); | |
2274 | } | |
2275 | ||
2276 | int | |
2277 | chn_notify(struct pcm_channel *c, u_int32_t flags) | |
2278 | { | |
2279 | struct pcm_channel *ch; | |
2280 | struct pcmchan_caps *caps; | |
2281 | uint32_t bestformat, bestspeed, besthwformat, *vchanformat, *vchanrate; | |
2282 | uint32_t vpflags; | |
2283 | int dirty, err, run, nrun; | |
2284 | ||
2285 | CHN_LOCKASSERT(c); | |
2286 | ||
2287 | if (CHN_EMPTY(c, children)) | |
2288 | return (ENODEV); | |
2289 | ||
2290 | err = 0; | |
2291 | ||
984263bc | 2292 | /* |
2a1ad637 | 2293 | * If the hwchan is running, we can't change its rate, format or |
984263bc MD |
2294 | * blocksize |
2295 | */ | |
2a1ad637 | 2296 | run = (CHN_STARTED(c)) ? 1 : 0; |
984263bc MD |
2297 | if (run) |
2298 | flags &= CHN_N_VOLUME | CHN_N_TRIGGER; | |
2299 | ||
2300 | if (flags & CHN_N_RATE) { | |
2301 | /* | |
2a1ad637 FT |
2302 | * XXX I'll make good use of this someday. |
2303 | * However this is currently being superseded by | |
2304 | * the availability of CHN_F_VCHAN_DYNAMIC. | |
984263bc MD |
2305 | */ |
2306 | } | |
2a1ad637 | 2307 | |
984263bc MD |
2308 | if (flags & CHN_N_FORMAT) { |
2309 | /* | |
2a1ad637 FT |
2310 | * XXX I'll make good use of this someday. |
2311 | * However this is currently being superseded by | |
2312 | * the availability of CHN_F_VCHAN_DYNAMIC. | |
984263bc MD |
2313 | */ |
2314 | } | |
2a1ad637 | 2315 | |
984263bc MD |
2316 | if (flags & CHN_N_VOLUME) { |
2317 | /* | |
2a1ad637 FT |
2318 | * XXX I'll make good use of this someday, though |
2319 | * soft volume control is currently pretty much | |
2320 | * integrated. | |
984263bc MD |
2321 | */ |
2322 | } | |
2a1ad637 | 2323 | |
984263bc | 2324 | if (flags & CHN_N_BLOCKSIZE) { |
984263bc | 2325 | /* |
2a1ad637 | 2326 | * Set to default latency profile |
984263bc | 2327 | */ |
2a1ad637 FT |
2328 | chn_setlatency(c, chn_latency); |
2329 | } | |
2330 | ||
2331 | if ((flags & CHN_N_TRIGGER) && !(c->flags & CHN_F_VCHAN_DYNAMIC)) { | |
2332 | nrun = CHN_EMPTY(c, children.busy) ? 0 : 1; | |
2333 | if (nrun && !run) | |
2334 | err = chn_start(c, 1); | |
2335 | if (!nrun && run) | |
2336 | chn_abort(c); | |
2337 | flags &= ~CHN_N_TRIGGER; | |
984263bc | 2338 | } |
2a1ad637 | 2339 | |
984263bc | 2340 | if (flags & CHN_N_TRIGGER) { |
2a1ad637 FT |
2341 | if (c->direction == PCMDIR_PLAY) { |
2342 | vchanformat = &c->parentsnddev->pvchanformat; | |
2343 | vchanrate = &c->parentsnddev->pvchanrate; | |
2344 | } else { | |
2345 | vchanformat = &c->parentsnddev->rvchanformat; | |
2346 | vchanrate = &c->parentsnddev->rvchanrate; | |
2347 | } | |
2348 | ||
2349 | /* Dynamic Virtual Channel */ | |
2350 | if (!(c->flags & CHN_F_VCHAN_ADAPTIVE)) { | |
2351 | bestformat = *vchanformat; | |
2352 | bestspeed = *vchanrate; | |
2353 | } else { | |
2354 | bestformat = 0; | |
2355 | bestspeed = 0; | |
2356 | } | |
2357 | ||
2358 | besthwformat = 0; | |
984263bc | 2359 | nrun = 0; |
2a1ad637 FT |
2360 | caps = chn_getcaps(c); |
2361 | dirty = 0; | |
2362 | vpflags = 0; | |
2363 | ||
2364 | CHN_FOREACH(ch, c, children.busy) { | |
2365 | CHN_LOCK(ch); | |
2366 | if ((ch->format & AFMT_PASSTHROUGH) && | |
2367 | snd_fmtvalid(ch->format, caps->fmtlist)) { | |
2368 | bestformat = ch->format; | |
2369 | bestspeed = ch->speed; | |
2370 | CHN_UNLOCK(ch); | |
2371 | vpflags = CHN_F_PASSTHROUGH; | |
2372 | nrun++; | |
2373 | break; | |
2374 | } | |
2375 | if ((ch->flags & CHN_F_EXCLUSIVE) && vpflags == 0) { | |
2376 | if (c->flags & CHN_F_VCHAN_ADAPTIVE) { | |
2377 | bestspeed = ch->speed; | |
2378 | RANGE(bestspeed, caps->minspeed, | |
2379 | caps->maxspeed); | |
2380 | besthwformat = snd_fmtbest(ch->format, | |
2381 | caps->fmtlist); | |
2382 | if (besthwformat != 0) | |
2383 | bestformat = besthwformat; | |
2384 | } | |
2385 | CHN_UNLOCK(ch); | |
2386 | vpflags = CHN_F_EXCLUSIVE; | |
2387 | nrun++; | |
2388 | continue; | |
2389 | } | |
2390 | if (!(c->flags & CHN_F_VCHAN_ADAPTIVE) || | |
2391 | vpflags != 0) { | |
2392 | CHN_UNLOCK(ch); | |
2393 | nrun++; | |
2394 | continue; | |
2395 | } | |
2396 | if (ch->speed > bestspeed) { | |
2397 | bestspeed = ch->speed; | |
2398 | RANGE(bestspeed, caps->minspeed, | |
2399 | caps->maxspeed); | |
2400 | } | |
2401 | besthwformat = snd_fmtbest(ch->format, caps->fmtlist); | |
2402 | if (!(besthwformat & AFMT_VCHAN)) { | |
2403 | CHN_UNLOCK(ch); | |
2404 | nrun++; | |
2405 | continue; | |
2406 | } | |
2407 | if (AFMT_CHANNEL(besthwformat) > | |
2408 | AFMT_CHANNEL(bestformat)) | |
2409 | bestformat = besthwformat; | |
2410 | else if (AFMT_CHANNEL(besthwformat) == | |
2411 | AFMT_CHANNEL(bestformat) && | |
2412 | AFMT_BIT(besthwformat) > AFMT_BIT(bestformat)) | |
2413 | bestformat = besthwformat; | |
2414 | CHN_UNLOCK(ch); | |
2415 | nrun++; | |
984263bc | 2416 | } |
2a1ad637 FT |
2417 | |
2418 | if (bestformat == 0) | |
2419 | bestformat = c->format; | |
2420 | if (bestspeed == 0) | |
2421 | bestspeed = c->speed; | |
2422 | ||
2423 | if (bestformat != c->format || bestspeed != c->speed) | |
2424 | dirty = 1; | |
2425 | ||
2426 | c->flags &= ~(CHN_F_PASSTHROUGH | CHN_F_EXCLUSIVE); | |
2427 | c->flags |= vpflags; | |
2428 | ||
2429 | if (nrun && !run) { | |
2430 | if (dirty) { | |
2431 | bestspeed = CHANNEL_SETSPEED(c->methods, | |
2432 | c->devinfo, bestspeed); | |
2433 | err = chn_reset(c, bestformat, bestspeed); | |
2434 | } | |
2435 | if (err == 0 && dirty) { | |
2436 | CHN_FOREACH(ch, c, children.busy) { | |
2437 | CHN_LOCK(ch); | |
2438 | if (VCHAN_SYNC_REQUIRED(ch)) | |
2439 | vchan_sync(ch); | |
2440 | CHN_UNLOCK(ch); | |
2441 | } | |
2442 | } | |
2443 | if (err == 0) { | |
2444 | if (dirty) | |
2445 | c->flags |= CHN_F_DIRTY; | |
2446 | err = chn_start(c, 1); | |
2447 | } | |
2448 | } | |
2449 | ||
2450 | if (nrun && run && dirty) { | |
984263bc | 2451 | chn_abort(c); |
2a1ad637 FT |
2452 | bestspeed = CHANNEL_SETSPEED(c->methods, c->devinfo, |
2453 | bestspeed); | |
2454 | err = chn_reset(c, bestformat, bestspeed); | |
2455 | if (err == 0) { | |
2456 | CHN_FOREACH(ch, c, children.busy) { | |
2457 | CHN_LOCK(ch); | |
2458 | if (VCHAN_SYNC_REQUIRED(ch)) | |
2459 | vchan_sync(ch); | |
2460 | CHN_UNLOCK(ch); | |
2461 | } | |
2462 | } | |
2463 | if (err == 0) { | |
2464 | c->flags |= CHN_F_DIRTY; | |
2465 | err = chn_start(c, 1); | |
2466 | } | |
2467 | } | |
2468 | ||
2469 | if (err == 0 && !(bestformat & AFMT_PASSTHROUGH) && | |
2470 | (bestformat & AFMT_VCHAN)) { | |
2471 | *vchanformat = bestformat; | |
2472 | *vchanrate = bestspeed; | |
2473 | } | |
2474 | ||
2475 | if (!nrun && run) { | |
2476 | c->flags &= ~(CHN_F_PASSTHROUGH | CHN_F_EXCLUSIVE); | |
2477 | bestformat = *vchanformat; | |
2478 | bestspeed = *vchanrate; | |
2479 | chn_abort(c); | |
2480 | if (c->format != bestformat || c->speed != bestspeed) | |
2481 | chn_reset(c, bestformat, bestspeed); | |
2482 | } | |
984263bc | 2483 | } |
2a1ad637 FT |
2484 | |
2485 | return (err); | |
984263bc | 2486 | } |
558a398b | 2487 | |
2a1ad637 FT |
2488 | /** |
2489 | * @brief Fetch array of supported discrete sample rates | |
2490 | * | |
2491 | * Wrapper for CHANNEL_GETRATES. Please see channel_if.m:getrates() for | |
2492 | * detailed information. | |
2493 | * | |
2494 | * @note If the operation isn't supported, this function will just return 0 | |
2495 | * (no rates in the array), and *rates will be set to NULL. Callers | |
2496 | * should examine rates @b only if this function returns non-zero. | |
2497 | * | |
2498 | * @param c pcm channel to examine | |
2499 | * @param rates pointer to array of integers; rate table will be recorded here | |
2500 | * | |
2501 | * @return number of rates in the array pointed to be @c rates | |
2502 | */ | |
2503 | int | |
2504 | chn_getrates(struct pcm_channel *c, int **rates) | |
558a398b | 2505 | { |
2a1ad637 FT |
2506 | KASSERT(rates != NULL, ("rates is null")); |
2507 | CHN_LOCKASSERT(c); | |
2508 | return CHANNEL_GETRATES(c->methods, c->devinfo, rates); | |
558a398b SS |
2509 | } |
2510 | ||
2a1ad637 FT |
2511 | /** |
2512 | * @brief Remove channel from a sync group, if there is one. | |
2513 | * | |
2514 | * This function is initially intended for the following conditions: | |
2515 | * - Starting a syncgroup (@c SNDCTL_DSP_SYNCSTART ioctl) | |
2516 | * - Closing a device. (A channel can't be destroyed if it's still in use.) | |
2517 | * | |
2518 | * @note Before calling this function, the syncgroup list mutex must be | |
2519 | * held. (Consider pcm_channel::sm protected by the SG list mutex | |
2520 | * whether @c c is locked or not.) | |
2521 | * | |
2522 | * @param c channel device to be started or closed | |
2523 | * @returns If this channel was the only member of a group, the group ID | |
2524 | * is returned to the caller so that the caller can release it | |
2525 | * via free_unr() after giving up the syncgroup lock. Else it | |
2526 | * returns 0. | |
2527 | */ | |
2528 | int | |
2529 | chn_syncdestroy(struct pcm_channel *c) | |
558a398b | 2530 | { |
2a1ad637 FT |
2531 | struct pcmchan_syncmember *sm; |
2532 | struct pcmchan_syncgroup *sg; | |
2533 | int sg_id; | |
2534 | ||
2535 | sg_id = 0; | |
2536 | ||
67931cc4 | 2537 | PCM_SG_ASSERTOWNED; |
2a1ad637 FT |
2538 | |
2539 | if (c->sm != NULL) { | |
2540 | sm = c->sm; | |
2541 | sg = sm->parent; | |
2542 | c->sm = NULL; | |
2543 | ||
2544 | KASSERT(sg != NULL, ("syncmember has null parent")); | |
2545 | ||
2546 | SLIST_REMOVE(&sg->members, sm, pcmchan_syncmember, link); | |
67931cc4 | 2547 | kfree(sm, M_DEVBUF); |
2a1ad637 FT |
2548 | |
2549 | if (SLIST_EMPTY(&sg->members)) { | |
2550 | SLIST_REMOVE(&snd_pcm_syncgroups, sg, pcmchan_syncgroup, link); | |
2551 | sg_id = sg->id; | |
67931cc4 | 2552 | kfree(sg, M_DEVBUF); |
2a1ad637 FT |
2553 | } |
2554 | } | |
2555 | ||
2556 | return sg_id; | |
558a398b | 2557 | } |
2a1ad637 FT |
2558 | |
2559 | #ifdef OSSV4_EXPERIMENT | |
2560 | int | |
2561 | chn_getpeaks(struct pcm_channel *c, int *lpeak, int *rpeak) | |
2562 | { | |
2563 | CHN_LOCKASSERT(c); | |
2564 | return CHANNEL_GETPEAKS(c->methods, c->devinfo, lpeak, rpeak); | |
2565 | } | |
2566 | #endif |