1 /***
2 This file is part of PulseAudio.
3
4 Copyright 2004-2006 Lennart Poettering
5 Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
6
7 PulseAudio is free software; you can redistribute it and/or modify
8 it under the terms of the GNU Lesser General Public License as published
9 by the Free Software Foundation; either version 2.1 of the License,
10 or (at your option) any later version.
11
12 PulseAudio is distributed in the hope that it will be useful, but
13 WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 General Public License for more details.
16
17 You should have received a copy of the GNU Lesser General Public License
18 along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
19 ***/
20
21 /* General power management rules:
22 *
23 * When SUSPENDED we close the audio device.
24 *
25 * We make no difference between IDLE and RUNNING in our handling.
26 *
27 * As long as we are in RUNNING/IDLE state we will *always* write data to
28 * the device. If none is available from the inputs, we write silence
29 * instead.
30 *
31 * If power should be saved on IDLE module-suspend-on-idle should be used.
32 *
33 */
34
35 #ifdef HAVE_CONFIG_H
36 #include <config.h>
37 #endif
38
39 #ifdef HAVE_SYS_MMAN_H
40 #include <sys/mman.h>
41 #endif
42
43 #include <sys/soundcard.h>
44 #include <sys/ioctl.h>
45 #include <stdlib.h>
46 #include <stdio.h>
47 #include <errno.h>
48 #include <fcntl.h>
49 #include <unistd.h>
50
51 #include <pulse/xmalloc.h>
52 #include <pulse/util.h>
53
54 #include <pulsecore/core-error.h>
55 #include <pulsecore/thread.h>
56 #include <pulsecore/sink.h>
57 #include <pulsecore/source.h>
58 #include <pulsecore/module.h>
59 #include <pulsecore/sample-util.h>
60 #include <pulsecore/core-util.h>
61 #include <pulsecore/modargs.h>
62 #include <pulsecore/log.h>
63 #include <pulsecore/macro.h>
64 #include <pulsecore/thread-mq.h>
65 #include <pulsecore/rtpoll.h>
66 #include <pulsecore/poll.h>
67
68 #if defined(__NetBSD__) && !defined(SNDCTL_DSP_GETODELAY)
69 #include <sys/audioio.h>
70 #include <sys/syscall.h>
71 #endif
72
73 #include "oss-util.h"
74
75 PA_MODULE_AUTHOR("Lennart Poettering");
76 PA_MODULE_DESCRIPTION("OSS Sink/Source");
77 PA_MODULE_VERSION(PACKAGE_VERSION);
78 PA_MODULE_LOAD_ONCE(false);
79 PA_MODULE_USAGE(
80 "sink_name=<name for the sink> "
81 "sink_properties=<properties for the sink> "
82 "source_name=<name for the source> "
83 "source_properties=<properties for the source> "
84 "device=<OSS device> "
85 "record=<enable source?> "
86 "playback=<enable sink?> "
87 "format=<sample format> "
88 "rate=<sample rate> "
89 "channels=<number of channels> "
90 "channel_map=<channel map> "
91 "fragments=<number of fragments> "
92 "fragment_size=<fragment size> "
93 "mmap=<enable memory mapping?>");
94 #ifdef __linux__
95 PA_MODULE_DEPRECATED("Please use module-alsa-card instead of module-oss!");
96 #endif
97
98 #define DEFAULT_DEVICE "/dev/dsp"
99
100 struct userdata {
101 pa_core *core;
102 pa_module *module;
103 pa_sink *sink;
104 pa_source *source;
105
106 pa_thread *thread;
107 pa_thread_mq thread_mq;
108 pa_rtpoll *rtpoll;
109
110 char *device_name;
111
112 pa_memchunk memchunk;
113
114 size_t frame_size;
115 uint32_t in_fragment_size, out_fragment_size, in_nfrags, out_nfrags, in_hwbuf_size, out_hwbuf_size;
116 bool use_getospace, use_getispace;
117 bool use_getodelay;
118
119 bool sink_suspended, source_suspended;
120
121 int fd;
122 int mode;
123
124 int mixer_fd;
125 int mixer_devmask;
126
127 int nfrags, frag_size, orig_frag_size;
128
129 bool shutdown;
130
131 bool use_mmap;
132 unsigned out_mmap_current, in_mmap_current;
133 void *in_mmap, *out_mmap;
134 pa_memblock **in_mmap_memblocks, **out_mmap_memblocks;
135
136 int in_mmap_saved_nfrags, out_mmap_saved_nfrags;
137
138 pa_rtpoll_item *rtpoll_item;
139 };
140
141 static const char* const valid_modargs[] = {
142 "sink_name",
143 "sink_properties",
144 "source_name",
145 "source_properties",
146 "device",
147 "record",
148 "playback",
149 "fragments",
150 "fragment_size",
151 "format",
152 "rate",
153 "channels",
154 "channel_map",
155 "mmap",
156 NULL
157 };
158
159 /* Sink and source states are passed as arguments, because this is called
160 * during state changes, and we need the new state, but thread_info.state
161 * has not yet been updated. */
trigger(struct userdata * u,pa_sink_state_t sink_state,pa_source_state_t source_state,bool quick)162 static void trigger(struct userdata *u, pa_sink_state_t sink_state, pa_source_state_t source_state, bool quick) {
163 int enable_bits = 0, zero = 0;
164
165 pa_assert(u);
166
167 if (u->fd < 0)
168 return;
169
170 pa_log_debug("trigger");
171
172 if (u->source && PA_SOURCE_IS_OPENED(source_state))
173 enable_bits |= PCM_ENABLE_INPUT;
174
175 if (u->sink && PA_SINK_IS_OPENED(sink_state))
176 enable_bits |= PCM_ENABLE_OUTPUT;
177
178 pa_log_debug("trigger: %i", enable_bits);
179
180 if (u->use_mmap) {
181
182 if (!quick)
183 ioctl(u->fd, SNDCTL_DSP_SETTRIGGER, &zero);
184
185 #ifdef SNDCTL_DSP_HALT
186 if (enable_bits == 0)
187 if (ioctl(u->fd, SNDCTL_DSP_HALT, NULL) < 0)
188 pa_log_warn("SNDCTL_DSP_HALT: %s", pa_cstrerror(errno));
189 #endif
190
191 if (ioctl(u->fd, SNDCTL_DSP_SETTRIGGER, &enable_bits) < 0)
192 pa_log_warn("SNDCTL_DSP_SETTRIGGER: %s", pa_cstrerror(errno));
193
194 if (u->sink && !(enable_bits & PCM_ENABLE_OUTPUT)) {
195 pa_log_debug("clearing playback buffer");
196 pa_silence_memory(u->out_mmap, u->out_hwbuf_size, &u->sink->sample_spec);
197 }
198
199 } else {
200
201 if (enable_bits)
202 if (ioctl(u->fd, SNDCTL_DSP_POST, NULL) < 0)
203 pa_log_warn("SNDCTL_DSP_POST: %s", pa_cstrerror(errno));
204
205 if (!quick) {
206 /*
207 * Some crappy drivers do not start the recording until we
208 * read something. Without this snippet, poll will never
209 * register the fd as ready.
210 */
211
212 if (u->source && PA_SOURCE_IS_OPENED(source_state)) {
213 uint8_t *buf = pa_xnew(uint8_t, u->in_fragment_size);
214
215 /* XXX: Shouldn't this be done only when resuming the source?
216 * Currently this code path is executed also when resuming the
217 * sink while the source is already running. */
218
219 if (pa_read(u->fd, buf, u->in_fragment_size, NULL) < 0)
220 pa_log("pa_read() failed: %s", pa_cstrerror(errno));
221
222 pa_xfree(buf);
223 }
224 }
225 }
226 }
227
mmap_fill_memblocks(struct userdata * u,unsigned n)228 static void mmap_fill_memblocks(struct userdata *u, unsigned n) {
229 pa_assert(u);
230 pa_assert(u->out_mmap_memblocks);
231
232 /* pa_log("Mmmap writing %u blocks", n); */
233
234 while (n > 0) {
235 pa_memchunk chunk;
236
237 if (u->out_mmap_memblocks[u->out_mmap_current])
238 pa_memblock_unref_fixed(u->out_mmap_memblocks[u->out_mmap_current]);
239
240 chunk.memblock = u->out_mmap_memblocks[u->out_mmap_current] =
241 pa_memblock_new_fixed(
242 u->core->mempool,
243 (uint8_t*) u->out_mmap + u->out_fragment_size * u->out_mmap_current,
244 u->out_fragment_size,
245 1);
246
247 chunk.length = pa_memblock_get_length(chunk.memblock);
248 chunk.index = 0;
249
250 pa_sink_render_into_full(u->sink, &chunk);
251
252 u->out_mmap_current++;
253 while (u->out_mmap_current >= u->out_nfrags)
254 u->out_mmap_current -= u->out_nfrags;
255
256 n--;
257 }
258 }
259
mmap_write(struct userdata * u)260 static int mmap_write(struct userdata *u) {
261 struct count_info info;
262
263 pa_assert(u);
264 pa_assert(u->sink);
265
266 /* pa_log("Mmmap writing..."); */
267
268 if (ioctl(u->fd, SNDCTL_DSP_GETOPTR, &info) < 0) {
269 pa_log("SNDCTL_DSP_GETOPTR: %s", pa_cstrerror(errno));
270 return -1;
271 }
272
273 info.blocks += u->out_mmap_saved_nfrags;
274 u->out_mmap_saved_nfrags = 0;
275
276 if (info.blocks > 0)
277 mmap_fill_memblocks(u, (unsigned) info.blocks);
278
279 return info.blocks;
280 }
281
mmap_post_memblocks(struct userdata * u,unsigned n)282 static void mmap_post_memblocks(struct userdata *u, unsigned n) {
283 pa_assert(u);
284 pa_assert(u->in_mmap_memblocks);
285
286 /* pa_log("Mmmap reading %u blocks", n); */
287
288 while (n > 0) {
289 pa_memchunk chunk;
290
291 if (!u->in_mmap_memblocks[u->in_mmap_current]) {
292
293 chunk.memblock = u->in_mmap_memblocks[u->in_mmap_current] =
294 pa_memblock_new_fixed(
295 u->core->mempool,
296 (uint8_t*) u->in_mmap + u->in_fragment_size*u->in_mmap_current,
297 u->in_fragment_size,
298 1);
299
300 chunk.length = pa_memblock_get_length(chunk.memblock);
301 chunk.index = 0;
302
303 pa_source_post(u->source, &chunk);
304 }
305
306 u->in_mmap_current++;
307 while (u->in_mmap_current >= u->in_nfrags)
308 u->in_mmap_current -= u->in_nfrags;
309
310 n--;
311 }
312 }
313
mmap_clear_memblocks(struct userdata * u,unsigned n)314 static void mmap_clear_memblocks(struct userdata*u, unsigned n) {
315 unsigned i = u->in_mmap_current;
316
317 pa_assert(u);
318 pa_assert(u->in_mmap_memblocks);
319
320 if (n > u->in_nfrags)
321 n = u->in_nfrags;
322
323 while (n > 0) {
324 if (u->in_mmap_memblocks[i]) {
325 pa_memblock_unref_fixed(u->in_mmap_memblocks[i]);
326 u->in_mmap_memblocks[i] = NULL;
327 }
328
329 i++;
330 while (i >= u->in_nfrags)
331 i -= u->in_nfrags;
332
333 n--;
334 }
335 }
336
mmap_read(struct userdata * u)337 static int mmap_read(struct userdata *u) {
338 struct count_info info;
339 pa_assert(u);
340 pa_assert(u->source);
341
342 /* pa_log("Mmmap reading..."); */
343
344 if (ioctl(u->fd, SNDCTL_DSP_GETIPTR, &info) < 0) {
345 pa_log("SNDCTL_DSP_GETIPTR: %s", pa_cstrerror(errno));
346 return -1;
347 }
348
349 /* pa_log("... %i", info.blocks); */
350
351 info.blocks += u->in_mmap_saved_nfrags;
352 u->in_mmap_saved_nfrags = 0;
353
354 if (info.blocks > 0) {
355 mmap_post_memblocks(u, (unsigned) info.blocks);
356 mmap_clear_memblocks(u, u->in_nfrags/2);
357 }
358
359 return info.blocks;
360 }
361
mmap_sink_get_latency(struct userdata * u)362 static pa_usec_t mmap_sink_get_latency(struct userdata *u) {
363 struct count_info info;
364 size_t bpos, n;
365
366 pa_assert(u);
367
368 if (ioctl(u->fd, SNDCTL_DSP_GETOPTR, &info) < 0) {
369 pa_log("SNDCTL_DSP_GETOPTR: %s", pa_cstrerror(errno));
370 return 0;
371 }
372
373 u->out_mmap_saved_nfrags += info.blocks;
374
375 bpos = ((u->out_mmap_current + (unsigned) u->out_mmap_saved_nfrags) * u->out_fragment_size) % u->out_hwbuf_size;
376
377 if (bpos <= (size_t) info.ptr)
378 n = u->out_hwbuf_size - ((size_t) info.ptr - bpos);
379 else
380 n = bpos - (size_t) info.ptr;
381
382 /* pa_log("n = %u, bpos = %u, ptr = %u, total=%u, fragsize = %u, n_frags = %u\n", n, bpos, (unsigned) info.ptr, total, u->out_fragment_size, u->out_fragments); */
383
384 return pa_bytes_to_usec(n, &u->sink->sample_spec);
385 }
386
mmap_source_get_latency(struct userdata * u)387 static pa_usec_t mmap_source_get_latency(struct userdata *u) {
388 struct count_info info;
389 size_t bpos, n;
390
391 pa_assert(u);
392
393 if (ioctl(u->fd, SNDCTL_DSP_GETIPTR, &info) < 0) {
394 pa_log("SNDCTL_DSP_GETIPTR: %s", pa_cstrerror(errno));
395 return 0;
396 }
397
398 u->in_mmap_saved_nfrags += info.blocks;
399 bpos = ((u->in_mmap_current + (unsigned) u->in_mmap_saved_nfrags) * u->in_fragment_size) % u->in_hwbuf_size;
400
401 if (bpos <= (size_t) info.ptr)
402 n = (size_t) info.ptr - bpos;
403 else
404 n = u->in_hwbuf_size - bpos + (size_t) info.ptr;
405
406 /* pa_log("n = %u, bpos = %u, ptr = %u, total=%u, fragsize = %u, n_frags = %u\n", n, bpos, (unsigned) info.ptr, total, u->in_fragment_size, u->in_fragments); */
407
408 return pa_bytes_to_usec(n, &u->source->sample_spec);
409 }
410
io_sink_get_latency(struct userdata * u)411 static pa_usec_t io_sink_get_latency(struct userdata *u) {
412 pa_usec_t r = 0;
413
414 pa_assert(u);
415
416 if (u->use_getodelay) {
417 int arg;
418 #if defined(__NetBSD__) && !defined(SNDCTL_DSP_GETODELAY)
419 #if defined(AUDIO_GETBUFINFO)
420 struct audio_info info;
421 if (syscall(SYS_ioctl, u->fd, AUDIO_GETBUFINFO, &info) < 0) {
422 pa_log_info("Device doesn't support AUDIO_GETBUFINFO: %s", pa_cstrerror(errno));
423 u->use_getodelay = 0;
424 } else {
425 arg = info.play.seek + info.blocksize / 2;
426 r = pa_bytes_to_usec((size_t) arg, &u->sink->sample_spec);
427 }
428 #else
429 pa_log_info("System doesn't support AUDIO_GETBUFINFO");
430 u->use_getodelay = 0;
431 #endif
432 #else
433 if (ioctl(u->fd, SNDCTL_DSP_GETODELAY, &arg) < 0) {
434 pa_log_info("Device doesn't support SNDCTL_DSP_GETODELAY: %s", pa_cstrerror(errno));
435 u->use_getodelay = 0;
436 } else
437 r = pa_bytes_to_usec((size_t) arg, &u->sink->sample_spec);
438 #endif
439 }
440
441 if (!u->use_getodelay && u->use_getospace) {
442 struct audio_buf_info info;
443
444 if (ioctl(u->fd, SNDCTL_DSP_GETOSPACE, &info) < 0) {
445 pa_log_info("Device doesn't support SNDCTL_DSP_GETOSPACE: %s", pa_cstrerror(errno));
446 u->use_getospace = 0;
447 } else
448 r = pa_bytes_to_usec((size_t) info.bytes, &u->sink->sample_spec);
449 }
450
451 if (u->memchunk.memblock)
452 r += pa_bytes_to_usec(u->memchunk.length, &u->sink->sample_spec);
453
454 return r;
455 }
456
io_source_get_latency(struct userdata * u)457 static pa_usec_t io_source_get_latency(struct userdata *u) {
458 pa_usec_t r = 0;
459
460 pa_assert(u);
461
462 if (u->use_getispace) {
463 struct audio_buf_info info;
464
465 if (ioctl(u->fd, SNDCTL_DSP_GETISPACE, &info) < 0) {
466 pa_log_info("Device doesn't support SNDCTL_DSP_GETISPACE: %s", pa_cstrerror(errno));
467 u->use_getispace = 0;
468 } else
469 r = pa_bytes_to_usec((size_t) info.bytes, &u->source->sample_spec);
470 }
471
472 return r;
473 }
474
build_pollfd(struct userdata * u)475 static void build_pollfd(struct userdata *u) {
476 struct pollfd *pollfd;
477
478 pa_assert(u);
479 pa_assert(u->fd >= 0);
480
481 if (u->rtpoll_item)
482 pa_rtpoll_item_free(u->rtpoll_item);
483
484 u->rtpoll_item = pa_rtpoll_item_new(u->rtpoll, PA_RTPOLL_NEVER, 1);
485 pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL);
486 pollfd->fd = u->fd;
487 pollfd->events = 0;
488 pollfd->revents = 0;
489 }
490
491 /* Called from IO context */
suspend(struct userdata * u)492 static void suspend(struct userdata *u) {
493 pa_assert(u);
494 pa_assert(u->fd >= 0);
495
496 pa_log_info("Suspending...");
497
498 if (u->out_mmap_memblocks) {
499 unsigned i;
500 for (i = 0; i < u->out_nfrags; i++)
501 if (u->out_mmap_memblocks[i]) {
502 pa_memblock_unref_fixed(u->out_mmap_memblocks[i]);
503 u->out_mmap_memblocks[i] = NULL;
504 }
505 }
506
507 if (u->in_mmap_memblocks) {
508 unsigned i;
509 for (i = 0; i < u->in_nfrags; i++)
510 if (u->in_mmap_memblocks[i]) {
511 pa_memblock_unref_fixed(u->in_mmap_memblocks[i]);
512 u->in_mmap_memblocks[i] = NULL;
513 }
514 }
515
516 if (u->in_mmap && u->in_mmap != MAP_FAILED) {
517 munmap(u->in_mmap, u->in_hwbuf_size);
518 u->in_mmap = NULL;
519 }
520
521 if (u->out_mmap && u->out_mmap != MAP_FAILED) {
522 munmap(u->out_mmap, u->out_hwbuf_size);
523 u->out_mmap = NULL;
524 }
525
526 /* Let's suspend */
527 ioctl(u->fd, SNDCTL_DSP_SYNC, NULL);
528 pa_close(u->fd);
529 u->fd = -1;
530
531 if (u->rtpoll_item) {
532 pa_rtpoll_item_free(u->rtpoll_item);
533 u->rtpoll_item = NULL;
534 }
535
536 pa_log_info("Device suspended...");
537 }
538
539 /* Called from IO context */
unsuspend(struct userdata * u)540 static int unsuspend(struct userdata *u) {
541 int m;
542 pa_sample_spec ss, *ss_original;
543 int frag_size, in_frag_size, out_frag_size;
544 int in_nfrags, out_nfrags;
545 struct audio_buf_info info;
546
547 pa_assert(u);
548 pa_assert(u->fd < 0);
549
550 m = u->mode;
551
552 pa_log_info("Trying resume...");
553
554 if ((u->fd = pa_oss_open(u->device_name, &m, NULL)) < 0) {
555 pa_log_warn("Resume failed, device busy (%s)", pa_cstrerror(errno));
556 return -1;
557 }
558
559 if (m != u->mode) {
560 pa_log_warn("Resume failed, couldn't open device with original access mode.");
561 goto fail;
562 }
563
564 if (u->nfrags >= 2 && u->frag_size >= 1)
565 if (pa_oss_set_fragments(u->fd, u->nfrags, u->orig_frag_size) < 0) {
566 pa_log_warn("Resume failed, couldn't set original fragment settings.");
567 goto fail;
568 }
569
570 ss = *(ss_original = u->sink ? &u->sink->sample_spec : &u->source->sample_spec);
571 if (pa_oss_auto_format(u->fd, &ss) < 0 || !pa_sample_spec_equal(&ss, ss_original)) {
572 pa_log_warn("Resume failed, couldn't set original sample format settings.");
573 goto fail;
574 }
575
576 if (ioctl(u->fd, SNDCTL_DSP_GETBLKSIZE, &frag_size) < 0) {
577 pa_log_warn("SNDCTL_DSP_GETBLKSIZE: %s", pa_cstrerror(errno));
578 goto fail;
579 }
580
581 in_frag_size = out_frag_size = frag_size;
582 in_nfrags = out_nfrags = u->nfrags;
583
584 if (ioctl(u->fd, SNDCTL_DSP_GETISPACE, &info) >= 0) {
585 in_frag_size = info.fragsize;
586 in_nfrags = info.fragstotal;
587 }
588
589 if (ioctl(u->fd, SNDCTL_DSP_GETOSPACE, &info) >= 0) {
590 out_frag_size = info.fragsize;
591 out_nfrags = info.fragstotal;
592 }
593
594 if ((u->source && (in_frag_size != (int) u->in_fragment_size || in_nfrags != (int) u->in_nfrags)) ||
595 (u->sink && (out_frag_size != (int) u->out_fragment_size || out_nfrags != (int) u->out_nfrags))) {
596 pa_log_warn("Resume failed, input fragment settings don't match.");
597 goto fail;
598 }
599
600 if (u->use_mmap) {
601 if (u->source) {
602 if ((u->in_mmap = mmap(NULL, u->in_hwbuf_size, PROT_READ, MAP_SHARED, u->fd, 0)) == MAP_FAILED) {
603 pa_log("Resume failed, mmap(): %s", pa_cstrerror(errno));
604 goto fail;
605 }
606 }
607
608 if (u->sink) {
609 if ((u->out_mmap = mmap(NULL, u->out_hwbuf_size, PROT_WRITE, MAP_SHARED, u->fd, 0)) == MAP_FAILED) {
610 pa_log("Resume failed, mmap(): %s", pa_cstrerror(errno));
611 if (u->in_mmap && u->in_mmap != MAP_FAILED) {
612 munmap(u->in_mmap, u->in_hwbuf_size);
613 u->in_mmap = NULL;
614 }
615
616 goto fail;
617 }
618
619 pa_silence_memory(u->out_mmap, u->out_hwbuf_size, &ss);
620 }
621 }
622
623 u->out_mmap_current = u->in_mmap_current = 0;
624 u->out_mmap_saved_nfrags = u->in_mmap_saved_nfrags = 0;
625
626 pa_assert(!u->rtpoll_item);
627
628 build_pollfd(u);
629
630 if (u->sink && u->sink->get_volume)
631 u->sink->get_volume(u->sink);
632 if (u->source && u->source->get_volume)
633 u->source->get_volume(u->source);
634
635 pa_log_info("Resumed successfully...");
636
637 return 0;
638
639 fail:
640 pa_close(u->fd);
641 u->fd = -1;
642 return -1;
643 }
644
645 /* Called from IO context */
sink_process_msg(pa_msgobject * o,int code,void * data,int64_t offset,pa_memchunk * chunk)646 static int sink_process_msg(pa_msgobject *o, int code, void *data, int64_t offset, pa_memchunk *chunk) {
647 struct userdata *u = PA_SINK(o)->userdata;
648
649 switch (code) {
650
651 case PA_SINK_MESSAGE_GET_LATENCY: {
652 pa_usec_t r = 0;
653
654 if (u->fd >= 0) {
655 if (u->use_mmap)
656 r = mmap_sink_get_latency(u);
657 else
658 r = io_sink_get_latency(u);
659 }
660
661 *((int64_t*) data) = (int64_t)r;
662
663 return 0;
664 }
665 }
666
667 return pa_sink_process_msg(o, code, data, offset, chunk);
668 }
669
670 /* Called from the IO thread. */
sink_set_state_in_io_thread_cb(pa_sink * s,pa_sink_state_t new_state,pa_suspend_cause_t new_suspend_cause)671 static int sink_set_state_in_io_thread_cb(pa_sink *s, pa_sink_state_t new_state, pa_suspend_cause_t new_suspend_cause) {
672 struct userdata *u;
673 bool do_trigger = false;
674 bool quick = true;
675
676 pa_assert(s);
677 pa_assert_se(u = s->userdata);
678
679 /* It may be that only the suspend cause is changing, in which case there's
680 * nothing to do. */
681 if (new_state == s->thread_info.state)
682 return 0;
683
684 switch (new_state) {
685
686 case PA_SINK_SUSPENDED:
687 pa_assert(PA_SINK_IS_OPENED(s->thread_info.state));
688
689 if (!u->source || u->source_suspended)
690 suspend(u);
691
692 do_trigger = true;
693
694 u->sink_suspended = true;
695 break;
696
697 case PA_SINK_IDLE:
698 case PA_SINK_RUNNING:
699
700 if (s->thread_info.state == PA_SINK_INIT) {
701 do_trigger = true;
702 quick = u->source && PA_SOURCE_IS_OPENED(u->source->thread_info.state);
703 }
704
705 if (s->thread_info.state == PA_SINK_SUSPENDED) {
706
707 if (!u->source || u->source_suspended) {
708 if (unsuspend(u) < 0)
709 return -1;
710 quick = false;
711 }
712
713 do_trigger = true;
714
715 u->out_mmap_current = 0;
716 u->out_mmap_saved_nfrags = 0;
717
718 u->sink_suspended = false;
719 }
720
721 break;
722
723 case PA_SINK_INVALID_STATE:
724 case PA_SINK_UNLINKED:
725 case PA_SINK_INIT:
726 ;
727 }
728
729 if (do_trigger)
730 trigger(u, new_state, u->source ? u->source->thread_info.state : PA_SOURCE_INVALID_STATE, quick);
731
732 return 0;
733 }
734
source_process_msg(pa_msgobject * o,int code,void * data,int64_t offset,pa_memchunk * chunk)735 static int source_process_msg(pa_msgobject *o, int code, void *data, int64_t offset, pa_memchunk *chunk) {
736 struct userdata *u = PA_SOURCE(o)->userdata;
737
738 switch (code) {
739
740 case PA_SOURCE_MESSAGE_GET_LATENCY: {
741 pa_usec_t r = 0;
742
743 if (u->fd >= 0) {
744 if (u->use_mmap)
745 r = mmap_source_get_latency(u);
746 else
747 r = io_source_get_latency(u);
748 }
749
750 *((int64_t*) data) = (int64_t)r;
751 return 0;
752 }
753 }
754
755 return pa_source_process_msg(o, code, data, offset, chunk);
756 }
757
758 /* Called from the IO thread. */
source_set_state_in_io_thread_cb(pa_source * s,pa_source_state_t new_state,pa_suspend_cause_t new_suspend_cause)759 static int source_set_state_in_io_thread_cb(pa_source *s, pa_source_state_t new_state, pa_suspend_cause_t new_suspend_cause) {
760 struct userdata *u;
761 bool do_trigger = false;
762 bool quick = true;
763
764 pa_assert(s);
765 pa_assert_se(u = s->userdata);
766
767 /* It may be that only the suspend cause is changing, in which case there's
768 * nothing to do. */
769 if (new_state == s->thread_info.state)
770 return 0;
771
772 switch (new_state) {
773
774 case PA_SOURCE_SUSPENDED:
775 pa_assert(PA_SOURCE_IS_OPENED(s->thread_info.state));
776
777 if (!u->sink || u->sink_suspended)
778 suspend(u);
779
780 do_trigger = true;
781
782 u->source_suspended = true;
783 break;
784
785 case PA_SOURCE_IDLE:
786 case PA_SOURCE_RUNNING:
787
788 if (s->thread_info.state == PA_SOURCE_INIT) {
789 do_trigger = true;
790 quick = u->sink && PA_SINK_IS_OPENED(u->sink->thread_info.state);
791 }
792
793 if (s->thread_info.state == PA_SOURCE_SUSPENDED) {
794
795 if (!u->sink || u->sink_suspended) {
796 if (unsuspend(u) < 0)
797 return -1;
798 quick = false;
799 }
800
801 do_trigger = true;
802
803 u->in_mmap_current = 0;
804 u->in_mmap_saved_nfrags = 0;
805
806 u->source_suspended = false;
807 }
808 break;
809
810 case PA_SOURCE_UNLINKED:
811 case PA_SOURCE_INIT:
812 case PA_SOURCE_INVALID_STATE:
813 ;
814 }
815
816 if (do_trigger)
817 trigger(u, u->sink ? u->sink->thread_info.state : PA_SINK_INVALID_STATE, new_state, quick);
818
819 return 0;
820 }
821
sink_get_volume(pa_sink * s)822 static void sink_get_volume(pa_sink *s) {
823 struct userdata *u;
824
825 pa_assert_se(u = s->userdata);
826
827 pa_assert(u->mixer_devmask & (SOUND_MASK_VOLUME|SOUND_MASK_PCM));
828
829 if (u->mixer_devmask & SOUND_MASK_VOLUME)
830 if (pa_oss_get_volume(u->mixer_fd, SOUND_MIXER_READ_VOLUME, &s->sample_spec, &s->real_volume) >= 0)
831 return;
832
833 if (u->mixer_devmask & SOUND_MASK_PCM)
834 if (pa_oss_get_volume(u->mixer_fd, SOUND_MIXER_READ_PCM, &s->sample_spec, &s->real_volume) >= 0)
835 return;
836
837 pa_log_info("Device doesn't support reading mixer settings: %s", pa_cstrerror(errno));
838 }
839
sink_set_volume(pa_sink * s)840 static void sink_set_volume(pa_sink *s) {
841 struct userdata *u;
842
843 pa_assert_se(u = s->userdata);
844
845 pa_assert(u->mixer_devmask & (SOUND_MASK_VOLUME|SOUND_MASK_PCM));
846
847 if (u->mixer_devmask & SOUND_MASK_VOLUME)
848 (void) pa_oss_set_volume(u->mixer_fd, SOUND_MIXER_WRITE_VOLUME, &s->sample_spec, &s->real_volume);
849
850 if (u->mixer_devmask & SOUND_MASK_PCM)
851 (void) pa_oss_set_volume(u->mixer_fd, SOUND_MIXER_WRITE_PCM, &s->sample_spec, &s->real_volume);
852 }
853
source_get_volume(pa_source * s)854 static void source_get_volume(pa_source *s) {
855 struct userdata *u;
856
857 pa_assert_se(u = s->userdata);
858
859 pa_assert(u->mixer_devmask & (SOUND_MASK_MIC|SOUND_MASK_IGAIN|SOUND_MASK_RECLEV));
860
861 if (u->mixer_devmask & SOUND_MASK_IGAIN)
862 if (pa_oss_get_volume(u->mixer_fd, SOUND_MIXER_READ_IGAIN, &s->sample_spec, &s->real_volume) >= 0)
863 return;
864
865 if (u->mixer_devmask & SOUND_MASK_RECLEV)
866 if (pa_oss_get_volume(u->mixer_fd, SOUND_MIXER_READ_RECLEV, &s->sample_spec, &s->real_volume) >= 0)
867 return;
868
869 if (u->mixer_devmask & SOUND_MASK_MIC)
870 if (pa_oss_get_volume(u->mixer_fd, SOUND_MIXER_READ_MIC, &s->sample_spec, &s->real_volume) >= 0)
871 return;
872
873 pa_log_info("Device doesn't support reading mixer settings: %s", pa_cstrerror(errno));
874 }
875
source_set_volume(pa_source * s)876 static void source_set_volume(pa_source *s) {
877 struct userdata *u;
878
879 pa_assert_se(u = s->userdata);
880
881 pa_assert(u->mixer_devmask & (SOUND_MASK_MIC|SOUND_MASK_IGAIN|SOUND_MASK_RECLEV));
882
883 if (u->mixer_devmask & SOUND_MASK_IGAIN)
884 (void) pa_oss_set_volume(u->mixer_fd, SOUND_MIXER_WRITE_IGAIN, &s->sample_spec, &s->real_volume);
885
886 if (u->mixer_devmask & SOUND_MASK_RECLEV)
887 (void) pa_oss_set_volume(u->mixer_fd, SOUND_MIXER_WRITE_RECLEV, &s->sample_spec, &s->real_volume);
888
889 if (u->mixer_devmask & SOUND_MASK_MIC)
890 (void) pa_oss_set_volume(u->mixer_fd, SOUND_MIXER_WRITE_MIC, &s->sample_spec, &s->real_volume);
891 }
892
thread_func(void * userdata)893 static void thread_func(void *userdata) {
894 struct userdata *u = userdata;
895 int write_type = 0, read_type = 0;
896 short revents = 0;
897
898 pa_assert(u);
899
900 pa_log_debug("Thread starting up");
901
902 if (u->core->realtime_scheduling)
903 pa_thread_make_realtime(u->core->realtime_priority);
904
905 pa_thread_mq_install(&u->thread_mq);
906
907 for (;;) {
908 int ret;
909
910 /* pa_log("loop"); */
911
912 if (PA_UNLIKELY(u->sink && u->sink->thread_info.rewind_requested))
913 pa_sink_process_rewind(u->sink, 0);
914
915 /* Render some data and write it to the dsp */
916
917 if (u->sink && PA_SINK_IS_OPENED(u->sink->thread_info.state) && ((revents & POLLOUT) || u->use_mmap || u->use_getospace)) {
918
919 if (u->use_mmap) {
920
921 if ((ret = mmap_write(u)) < 0)
922 goto fail;
923
924 revents &= ~POLLOUT;
925
926 if (ret > 0)
927 continue;
928
929 } else {
930 ssize_t l;
931 bool loop = false, work_done = false;
932
933 l = (ssize_t) u->out_fragment_size;
934
935 if (u->use_getospace) {
936 audio_buf_info info;
937
938 if (ioctl(u->fd, SNDCTL_DSP_GETOSPACE, &info) < 0) {
939 pa_log_info("Device doesn't support SNDCTL_DSP_GETOSPACE: %s", pa_cstrerror(errno));
940 u->use_getospace = false;
941 } else {
942 l = info.bytes;
943
944 /* We loop only if GETOSPACE worked and we
945 * actually *know* that we can write more than
946 * one fragment at a time */
947 loop = true;
948 }
949 }
950
951 /* Round down to multiples of the fragment size,
952 * because OSS needs that (at least some versions
953 * do) */
954 l = (l/(ssize_t) u->out_fragment_size) * (ssize_t) u->out_fragment_size;
955
956 /* Hmm, so poll() signalled us that we can read
957 * something, but GETOSPACE told us there was nothing?
958 * Hmm, make the best of it, try to read some data, to
959 * avoid spinning forever. */
960 if (l <= 0 && (revents & POLLOUT)) {
961 l = (ssize_t) u->out_fragment_size;
962 loop = false;
963 }
964
965 while (l > 0) {
966 void *p;
967 ssize_t t;
968
969 if (u->memchunk.length <= 0)
970 pa_sink_render(u->sink, (size_t) l, &u->memchunk);
971
972 pa_assert(u->memchunk.length > 0);
973
974 p = pa_memblock_acquire(u->memchunk.memblock);
975 t = pa_write(u->fd, (uint8_t*) p + u->memchunk.index, u->memchunk.length, &write_type);
976 pa_memblock_release(u->memchunk.memblock);
977
978 /* pa_log("wrote %i bytes of %u", t, l); */
979
980 pa_assert(t != 0);
981
982 if (t < 0) {
983
984 if (errno == EAGAIN) {
985 pa_log_debug("EAGAIN");
986
987 revents &= ~POLLOUT;
988 break;
989
990 } else {
991 pa_log("Failed to write data to DSP: %s", pa_cstrerror(errno));
992 goto fail;
993 }
994
995 } else {
996
997 u->memchunk.index += (size_t) t;
998 u->memchunk.length -= (size_t) t;
999
1000 if (u->memchunk.length <= 0) {
1001 pa_memblock_unref(u->memchunk.memblock);
1002 pa_memchunk_reset(&u->memchunk);
1003 }
1004
1005 l -= t;
1006
1007 revents &= ~POLLOUT;
1008 work_done = true;
1009 }
1010
1011 if (!loop)
1012 break;
1013 }
1014
1015 if (work_done)
1016 continue;
1017 }
1018 }
1019
1020 /* Try to read some data and pass it on to the source driver. */
1021
1022 if (u->source && PA_SOURCE_IS_OPENED(u->source->thread_info.state) && ((revents & POLLIN) || u->use_mmap || u->use_getispace)) {
1023
1024 if (u->use_mmap) {
1025
1026 if ((ret = mmap_read(u)) < 0)
1027 goto fail;
1028
1029 revents &= ~POLLIN;
1030
1031 if (ret > 0)
1032 continue;
1033
1034 } else {
1035
1036 void *p;
1037 ssize_t l;
1038 pa_memchunk memchunk;
1039 bool loop = false, work_done = false;
1040
1041 l = (ssize_t) u->in_fragment_size;
1042
1043 if (u->use_getispace) {
1044 audio_buf_info info;
1045
1046 if (ioctl(u->fd, SNDCTL_DSP_GETISPACE, &info) < 0) {
1047 pa_log_info("Device doesn't support SNDCTL_DSP_GETISPACE: %s", pa_cstrerror(errno));
1048 u->use_getispace = false;
1049 } else {
1050 l = info.bytes;
1051 loop = true;
1052 }
1053 }
1054
1055 l = (l/(ssize_t) u->in_fragment_size) * (ssize_t) u->in_fragment_size;
1056
1057 if (l <= 0 && (revents & POLLIN)) {
1058 l = (ssize_t) u->in_fragment_size;
1059 loop = false;
1060 }
1061
1062 while (l > 0) {
1063 ssize_t t;
1064 size_t k;
1065
1066 pa_assert(l > 0);
1067
1068 memchunk.memblock = pa_memblock_new(u->core->mempool, (size_t) -1);
1069
1070 k = pa_memblock_get_length(memchunk.memblock);
1071
1072 if (k > (size_t) l)
1073 k = (size_t) l;
1074
1075 k = (k/u->frame_size)*u->frame_size;
1076
1077 p = pa_memblock_acquire(memchunk.memblock);
1078 t = pa_read(u->fd, p, k, &read_type);
1079 pa_memblock_release(memchunk.memblock);
1080
1081 pa_assert(t != 0); /* EOF cannot happen */
1082
1083 /* pa_log("read %i bytes of %u", t, l); */
1084
1085 if (t < 0) {
1086 pa_memblock_unref(memchunk.memblock);
1087
1088 if (errno == EAGAIN) {
1089 pa_log_debug("EAGAIN");
1090
1091 revents &= ~POLLIN;
1092 break;
1093
1094 } else {
1095 pa_log("Failed to read data from DSP: %s", pa_cstrerror(errno));
1096 goto fail;
1097 }
1098
1099 } else {
1100 memchunk.index = 0;
1101 memchunk.length = (size_t) t;
1102
1103 pa_source_post(u->source, &memchunk);
1104 pa_memblock_unref(memchunk.memblock);
1105
1106 l -= t;
1107
1108 revents &= ~POLLIN;
1109 work_done = true;
1110 }
1111
1112 if (!loop)
1113 break;
1114 }
1115
1116 if (work_done)
1117 continue;
1118 }
1119 }
1120
1121 /* pa_log("loop2 revents=%i", revents); */
1122
1123 if (u->rtpoll_item) {
1124 struct pollfd *pollfd;
1125
1126 pa_assert(u->fd >= 0);
1127
1128 pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL);
1129 pollfd->events = (short)
1130 (((u->source && PA_SOURCE_IS_OPENED(u->source->thread_info.state)) ? POLLIN : 0) |
1131 ((u->sink && PA_SINK_IS_OPENED(u->sink->thread_info.state)) ? POLLOUT : 0) |
1132 POLLHUP);
1133 }
1134
1135 /* set a watchdog timeout of one second */
1136 pa_rtpoll_set_timer_relative(u->rtpoll, 1000000);
1137
1138 /* Hmm, nothing to do. Let's sleep */
1139 if ((ret = pa_rtpoll_run(u->rtpoll)) < 0) {
1140 goto fail;
1141 }
1142
1143 /* check for shutdown */
1144 if (u->shutdown) {
1145 goto fail;
1146 }
1147
1148 if (u->rtpoll_item) {
1149 struct pollfd *pollfd;
1150
1151 pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL);
1152
1153 if (pollfd->revents & ~(POLLOUT|POLLIN)) {
1154 pa_log("DSP shutdown.");
1155 goto fail;
1156 }
1157
1158 revents = pollfd->revents;
1159 } else
1160 revents = 0;
1161
1162 /* check for mixer shutdown, if any */
1163 if ((revents & (POLLOUT | POLLIN)) == 0) {
1164 int mixer_fd = u->mixer_fd;
1165 int devmask;
1166 if (mixer_fd > -1 && ioctl(mixer_fd, SOUND_MIXER_READ_DEVMASK, &devmask) < 0) {
1167 pa_log("Mixer shutdown.");
1168 goto fail;
1169 }
1170 }
1171 }
1172
1173 fail:
1174 /* If this was no regular exit from the loop we have to continue
1175 * processing messages until we received PA_MESSAGE_SHUTDOWN */
1176 pa_asyncmsgq_post(u->thread_mq.outq, PA_MSGOBJECT(u->core), PA_CORE_MESSAGE_UNLOAD_MODULE, u->module, 0, NULL, NULL);
1177 pa_asyncmsgq_wait_for(u->thread_mq.inq, PA_MESSAGE_SHUTDOWN);
1178 }
1179
pa__init(pa_module * m)1180 int pa__init(pa_module*m) {
1181
1182 struct audio_buf_info info;
1183 struct userdata *u = NULL;
1184 const char *dev;
1185 int fd = -1;
1186 int nfrags, orig_frag_size, frag_size;
1187 int mode, caps;
1188 bool record = true, playback = true, use_mmap = true;
1189 pa_sample_spec ss;
1190 pa_channel_map map;
1191 pa_modargs *ma = NULL;
1192 char hwdesc[64];
1193 const char *name;
1194 bool namereg_fail;
1195 pa_sink_new_data sink_new_data;
1196 pa_source_new_data source_new_data;
1197
1198 pa_assert(m);
1199
1200 if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
1201 pa_log("Failed to parse module arguments.");
1202 goto fail;
1203 }
1204
1205 if (pa_modargs_get_value_boolean(ma, "record", &record) < 0 || pa_modargs_get_value_boolean(ma, "playback", &playback) < 0) {
1206 pa_log("record= and playback= expect boolean argument.");
1207 goto fail;
1208 }
1209
1210 if (!playback && !record) {
1211 pa_log("Neither playback nor record enabled for device.");
1212 goto fail;
1213 }
1214
1215 mode = (playback && record) ? O_RDWR : (playback ? O_WRONLY : O_RDONLY);
1216
1217 ss = m->core->default_sample_spec;
1218 map = m->core->default_channel_map;
1219 if (pa_modargs_get_sample_spec_and_channel_map(ma, &ss, &map, PA_CHANNEL_MAP_OSS) < 0) {
1220 pa_log("Failed to parse sample specification or channel map");
1221 goto fail;
1222 }
1223
1224 nfrags = (int) m->core->default_n_fragments;
1225 frag_size = (int) pa_usec_to_bytes(m->core->default_fragment_size_msec*1000, &ss);
1226 if (frag_size <= 0)
1227 frag_size = (int) pa_frame_size(&ss);
1228
1229 if (pa_modargs_get_value_s32(ma, "fragments", &nfrags) < 0 || pa_modargs_get_value_s32(ma, "fragment_size", &frag_size) < 0) {
1230 pa_log("Failed to parse fragments arguments");
1231 goto fail;
1232 }
1233
1234 if (pa_modargs_get_value_boolean(ma, "mmap", &use_mmap) < 0) {
1235 pa_log("Failed to parse mmap argument.");
1236 goto fail;
1237 }
1238
1239 if ((fd = pa_oss_open(dev = pa_modargs_get_value(ma, "device", DEFAULT_DEVICE), &mode, &caps)) < 0)
1240 goto fail;
1241
1242 if (use_mmap && (!(caps & DSP_CAP_MMAP) || !(caps & DSP_CAP_TRIGGER))) {
1243 pa_log_info("OSS device not mmap capable, falling back to UNIX read/write mode.");
1244 use_mmap = false;
1245 }
1246
1247 #ifndef __FreeBSD__
1248 if (use_mmap && mode == O_WRONLY) {
1249 pa_log_info("Device opened for playback only, cannot do memory mapping, falling back to UNIX write() mode.");
1250 use_mmap = false;
1251 }
1252 #endif
1253
1254 if (pa_oss_get_hw_description(dev, hwdesc, sizeof(hwdesc)) >= 0)
1255 pa_log_info("Hardware name is '%s'.", hwdesc);
1256 else
1257 hwdesc[0] = 0;
1258
1259 pa_log_info("Device opened in %s mode.", mode == O_WRONLY ? "O_WRONLY" : (mode == O_RDONLY ? "O_RDONLY" : "O_RDWR"));
1260
1261 orig_frag_size = frag_size;
1262 if (nfrags >= 2 && frag_size >= 1)
1263 if (pa_oss_set_fragments(fd, nfrags, frag_size) < 0)
1264 goto fail;
1265
1266 if (pa_oss_auto_format(fd, &ss) < 0)
1267 goto fail;
1268
1269 if (ioctl(fd, SNDCTL_DSP_GETBLKSIZE, &frag_size) < 0) {
1270 pa_log("SNDCTL_DSP_GETBLKSIZE: %s", pa_cstrerror(errno));
1271 goto fail;
1272 }
1273 pa_assert(frag_size > 0);
1274
1275 u = pa_xnew0(struct userdata, 1);
1276 u->core = m->core;
1277 u->module = m;
1278 m->userdata = u;
1279 u->fd = fd;
1280 u->mixer_fd = -1;
1281 u->mixer_devmask = 0;
1282 u->use_getospace = u->use_getispace = true;
1283 u->use_getodelay = true;
1284 u->mode = mode;
1285 u->frame_size = pa_frame_size(&ss);
1286 u->device_name = pa_xstrdup(dev);
1287 u->in_nfrags = u->out_nfrags = (uint32_t) (u->nfrags = nfrags);
1288 u->out_fragment_size = u->in_fragment_size = (uint32_t) (u->frag_size = frag_size);
1289 u->orig_frag_size = orig_frag_size;
1290 u->use_mmap = use_mmap;
1291 u->rtpoll = pa_rtpoll_new();
1292
1293 if (pa_thread_mq_init(&u->thread_mq, m->core->mainloop, u->rtpoll) < 0) {
1294 pa_log("pa_thread_mq_init() failed.");
1295 goto fail;
1296 }
1297
1298 u->rtpoll_item = NULL;
1299 build_pollfd(u);
1300
1301 if (ioctl(fd, SNDCTL_DSP_GETISPACE, &info) >= 0) {
1302 pa_log_info("Input -- %u fragments of size %u.", info.fragstotal, info.fragsize);
1303 u->in_fragment_size = (uint32_t) info.fragsize;
1304 u->in_nfrags = (uint32_t) info.fragstotal;
1305 u->use_getispace = true;
1306 }
1307
1308 if (ioctl(fd, SNDCTL_DSP_GETOSPACE, &info) >= 0) {
1309 pa_log_info("Output -- %u fragments of size %u.", info.fragstotal, info.fragsize);
1310 u->out_fragment_size = (uint32_t) info.fragsize;
1311 u->out_nfrags = (uint32_t) info.fragstotal;
1312 u->use_getospace = true;
1313 }
1314
1315 u->in_hwbuf_size = u->in_nfrags * u->in_fragment_size;
1316 u->out_hwbuf_size = u->out_nfrags * u->out_fragment_size;
1317
1318 if (mode != O_WRONLY) {
1319 char *name_buf = NULL;
1320
1321 if (use_mmap) {
1322 if ((u->in_mmap = mmap(NULL, u->in_hwbuf_size, PROT_READ, MAP_SHARED, fd, 0)) == MAP_FAILED) {
1323 pa_log_warn("mmap(PROT_READ) failed, reverting to non-mmap mode: %s", pa_cstrerror(errno));
1324 use_mmap = u->use_mmap = false;
1325 u->in_mmap = NULL;
1326 } else
1327 pa_log_debug("Successfully mmap()ed input buffer.");
1328 }
1329
1330 if ((name = pa_modargs_get_value(ma, "source_name", NULL)))
1331 namereg_fail = true;
1332 else {
1333 name = name_buf = pa_sprintf_malloc("oss_input.%s", pa_path_get_filename(dev));
1334 namereg_fail = false;
1335 }
1336
1337 pa_source_new_data_init(&source_new_data);
1338 source_new_data.driver = __FILE__;
1339 source_new_data.module = m;
1340 pa_source_new_data_set_name(&source_new_data, name);
1341 source_new_data.namereg_fail = namereg_fail;
1342 pa_source_new_data_set_sample_spec(&source_new_data, &ss);
1343 pa_source_new_data_set_channel_map(&source_new_data, &map);
1344 pa_proplist_sets(source_new_data.proplist, PA_PROP_DEVICE_STRING, dev);
1345 pa_proplist_sets(source_new_data.proplist, PA_PROP_DEVICE_API, "oss");
1346 pa_proplist_sets(source_new_data.proplist, PA_PROP_DEVICE_DESCRIPTION, hwdesc[0] ? hwdesc : dev);
1347 pa_proplist_sets(source_new_data.proplist, PA_PROP_DEVICE_ACCESS_MODE, use_mmap ? "mmap" : "serial");
1348 pa_proplist_setf(source_new_data.proplist, PA_PROP_DEVICE_BUFFERING_BUFFER_SIZE, "%lu", (unsigned long) (u->in_hwbuf_size));
1349 pa_proplist_setf(source_new_data.proplist, PA_PROP_DEVICE_BUFFERING_FRAGMENT_SIZE, "%lu", (unsigned long) (u->in_fragment_size));
1350
1351 if (pa_modargs_get_proplist(ma, "source_properties", source_new_data.proplist, PA_UPDATE_REPLACE) < 0) {
1352 pa_log("Invalid properties");
1353 pa_source_new_data_done(&source_new_data);
1354 pa_xfree(name_buf);
1355 goto fail;
1356 }
1357
1358 u->source = pa_source_new(m->core, &source_new_data, PA_SOURCE_HARDWARE|PA_SOURCE_LATENCY);
1359 pa_source_new_data_done(&source_new_data);
1360 pa_xfree(name_buf);
1361
1362 if (!u->source) {
1363 pa_log("Failed to create source object");
1364 goto fail;
1365 }
1366
1367 u->source->parent.process_msg = source_process_msg;
1368 u->source->set_state_in_io_thread = source_set_state_in_io_thread_cb;
1369 u->source->userdata = u;
1370
1371 pa_source_set_asyncmsgq(u->source, u->thread_mq.inq);
1372 pa_source_set_rtpoll(u->source, u->rtpoll);
1373 pa_source_set_fixed_latency(u->source, pa_bytes_to_usec(u->in_hwbuf_size, &u->source->sample_spec));
1374 u->source->refresh_volume = true;
1375
1376 if (use_mmap)
1377 u->in_mmap_memblocks = pa_xnew0(pa_memblock*, u->in_nfrags);
1378 }
1379
1380 if (mode != O_RDONLY) {
1381 char *name_buf = NULL;
1382
1383 if (use_mmap) {
1384 if ((u->out_mmap = mmap(NULL, u->out_hwbuf_size, PROT_WRITE, MAP_SHARED, fd, 0)) == MAP_FAILED) {
1385 if (mode == O_RDWR) {
1386 pa_log_debug("mmap() failed for input. Changing to O_WRONLY mode.");
1387 mode = O_WRONLY;
1388 goto go_on;
1389 } else {
1390 pa_log_warn("mmap(PROT_WRITE) failed, reverting to non-mmap mode: %s", pa_cstrerror(errno));
1391 u->use_mmap = use_mmap = false;
1392 u->out_mmap = NULL;
1393 }
1394 } else {
1395 pa_log_debug("Successfully mmap()ed output buffer.");
1396 pa_silence_memory(u->out_mmap, u->out_hwbuf_size, &ss);
1397 }
1398 }
1399
1400 if ((name = pa_modargs_get_value(ma, "sink_name", NULL)))
1401 namereg_fail = true;
1402 else {
1403 name = name_buf = pa_sprintf_malloc("oss_output.%s", pa_path_get_filename(dev));
1404 namereg_fail = false;
1405 }
1406
1407 pa_sink_new_data_init(&sink_new_data);
1408 sink_new_data.driver = __FILE__;
1409 sink_new_data.module = m;
1410 pa_sink_new_data_set_name(&sink_new_data, name);
1411 sink_new_data.namereg_fail = namereg_fail;
1412 pa_sink_new_data_set_sample_spec(&sink_new_data, &ss);
1413 pa_sink_new_data_set_channel_map(&sink_new_data, &map);
1414 pa_proplist_sets(sink_new_data.proplist, PA_PROP_DEVICE_STRING, dev);
1415 pa_proplist_sets(sink_new_data.proplist, PA_PROP_DEVICE_API, "oss");
1416 pa_proplist_sets(sink_new_data.proplist, PA_PROP_DEVICE_DESCRIPTION, hwdesc[0] ? hwdesc : dev);
1417 pa_proplist_sets(sink_new_data.proplist, PA_PROP_DEVICE_ACCESS_MODE, use_mmap ? "mmap" : "serial");
1418 pa_proplist_setf(sink_new_data.proplist, PA_PROP_DEVICE_BUFFERING_BUFFER_SIZE, "%lu", (unsigned long) (u->out_hwbuf_size));
1419 pa_proplist_setf(sink_new_data.proplist, PA_PROP_DEVICE_BUFFERING_FRAGMENT_SIZE, "%lu", (unsigned long) (u->out_fragment_size));
1420
1421 if (pa_modargs_get_proplist(ma, "sink_properties", sink_new_data.proplist, PA_UPDATE_REPLACE) < 0) {
1422 pa_log("Invalid properties");
1423 pa_sink_new_data_done(&sink_new_data);
1424 pa_xfree(name_buf);
1425 goto fail;
1426 }
1427
1428 u->sink = pa_sink_new(m->core, &sink_new_data, PA_SINK_HARDWARE|PA_SINK_LATENCY);
1429 pa_sink_new_data_done(&sink_new_data);
1430 pa_xfree(name_buf);
1431
1432 if (!u->sink) {
1433 pa_log("Failed to create sink object");
1434 goto fail;
1435 }
1436
1437 u->sink->parent.process_msg = sink_process_msg;
1438 u->sink->set_state_in_io_thread = sink_set_state_in_io_thread_cb;
1439 u->sink->userdata = u;
1440
1441 pa_sink_set_asyncmsgq(u->sink, u->thread_mq.inq);
1442 pa_sink_set_rtpoll(u->sink, u->rtpoll);
1443 pa_sink_set_fixed_latency(u->sink, pa_bytes_to_usec(u->out_hwbuf_size, &u->sink->sample_spec));
1444 u->sink->refresh_volume = true;
1445
1446 pa_sink_set_max_request(u->sink, u->out_hwbuf_size);
1447
1448 if (use_mmap)
1449 u->out_mmap_memblocks = pa_xnew0(pa_memblock*, u->out_nfrags);
1450 }
1451
1452 if ((u->mixer_fd = pa_oss_open_mixer_for_device(u->device_name)) >= 0) {
1453 bool do_close = true;
1454
1455 if (ioctl(u->mixer_fd, SOUND_MIXER_READ_DEVMASK, &u->mixer_devmask) < 0)
1456 pa_log_warn("SOUND_MIXER_READ_DEVMASK failed: %s", pa_cstrerror(errno));
1457 else {
1458 if (u->sink && (u->mixer_devmask & (SOUND_MASK_VOLUME|SOUND_MASK_PCM))) {
1459 pa_log_debug("Found hardware mixer track for playback.");
1460 pa_sink_set_get_volume_callback(u->sink, sink_get_volume);
1461 pa_sink_set_set_volume_callback(u->sink, sink_set_volume);
1462 u->sink->n_volume_steps = 101;
1463 do_close = false;
1464 }
1465
1466 if (u->source && (u->mixer_devmask & (SOUND_MASK_MIC|SOUND_MASK_RECLEV|SOUND_MASK_IGAIN))) {
1467 pa_log_debug("Found hardware mixer track for recording.");
1468 pa_source_set_get_volume_callback(u->source, source_get_volume);
1469 pa_source_set_set_volume_callback(u->source, source_set_volume);
1470 u->source->n_volume_steps = 101;
1471 do_close = false;
1472 }
1473 }
1474
1475 if (do_close) {
1476 pa_close(u->mixer_fd);
1477 u->mixer_fd = -1;
1478 u->mixer_devmask = 0;
1479 }
1480 }
1481
1482 go_on:
1483
1484 pa_assert(u->source || u->sink);
1485
1486 pa_memchunk_reset(&u->memchunk);
1487
1488 if (!(u->thread = pa_thread_new("oss", thread_func, u))) {
1489 pa_log("Failed to create thread.");
1490 goto fail;
1491 }
1492
1493 /* Read mixer settings */
1494 if (u->sink) {
1495 if (sink_new_data.volume_is_set) {
1496 if (u->sink->set_volume)
1497 u->sink->set_volume(u->sink);
1498 } else {
1499 if (u->sink->get_volume)
1500 u->sink->get_volume(u->sink);
1501 }
1502 }
1503
1504 if (u->source) {
1505 if (source_new_data.volume_is_set) {
1506 if (u->source->set_volume)
1507 u->source->set_volume(u->source);
1508 } else {
1509 if (u->source->get_volume)
1510 u->source->get_volume(u->source);
1511 }
1512 }
1513
1514 if (u->sink)
1515 pa_sink_put(u->sink);
1516 if (u->source)
1517 pa_source_put(u->source);
1518
1519 pa_modargs_free(ma);
1520
1521 return 0;
1522
1523 fail:
1524
1525 if (u)
1526 pa__done(m);
1527 else if (fd >= 0)
1528 pa_close(fd);
1529
1530 if (ma)
1531 pa_modargs_free(ma);
1532
1533 return -1;
1534 }
1535
pa__done(pa_module * m)1536 void pa__done(pa_module*m) {
1537 struct userdata *u;
1538
1539 pa_assert(m);
1540
1541 if (!(u = m->userdata))
1542 return;
1543
1544 if (u->sink)
1545 pa_sink_unlink(u->sink);
1546
1547 if (u->source)
1548 pa_source_unlink(u->source);
1549
1550 if (u->thread) {
1551 u->shutdown = true;
1552 pa_asyncmsgq_send(u->thread_mq.inq, NULL, PA_MESSAGE_SHUTDOWN, NULL, 0, NULL);
1553 pa_thread_free(u->thread);
1554 }
1555
1556 pa_thread_mq_done(&u->thread_mq);
1557
1558 if (u->sink)
1559 pa_sink_unref(u->sink);
1560
1561 if (u->source)
1562 pa_source_unref(u->source);
1563
1564 if (u->memchunk.memblock)
1565 pa_memblock_unref(u->memchunk.memblock);
1566
1567 if (u->rtpoll_item)
1568 pa_rtpoll_item_free(u->rtpoll_item);
1569
1570 if (u->rtpoll)
1571 pa_rtpoll_free(u->rtpoll);
1572
1573 if (u->out_mmap_memblocks) {
1574 unsigned i;
1575 for (i = 0; i < u->out_nfrags; i++)
1576 if (u->out_mmap_memblocks[i])
1577 pa_memblock_unref_fixed(u->out_mmap_memblocks[i]);
1578 pa_xfree(u->out_mmap_memblocks);
1579 }
1580
1581 if (u->in_mmap_memblocks) {
1582 unsigned i;
1583 for (i = 0; i < u->in_nfrags; i++)
1584 if (u->in_mmap_memblocks[i])
1585 pa_memblock_unref_fixed(u->in_mmap_memblocks[i]);
1586 pa_xfree(u->in_mmap_memblocks);
1587 }
1588
1589 if (u->in_mmap && u->in_mmap != MAP_FAILED)
1590 munmap(u->in_mmap, u->in_hwbuf_size);
1591
1592 if (u->out_mmap && u->out_mmap != MAP_FAILED)
1593 munmap(u->out_mmap, u->out_hwbuf_size);
1594
1595 if (u->fd >= 0)
1596 pa_close(u->fd);
1597
1598 if (u->mixer_fd >= 0)
1599 pa_close(u->mixer_fd);
1600
1601 pa_xfree(u->device_name);
1602
1603 pa_xfree(u);
1604 }
1605