2
This file is part of PulseAudio.
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Copyright 2004-2006 Lennart Poettering
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Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
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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 of the License,
10
or (at your option) any later version.
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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.
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You should have received a copy of the GNU Lesser General Public License
18
along with PulseAudio; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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/* General power management rules:
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* When SUSPENDED we close the audio device.
27
* We make no difference between IDLE and RUNNING in our handling.
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* As long as we are in RUNNING/IDLE state we will *always* write data to
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* the device. If none is avilable from the inputs, we write silence
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* If power should be saved on IDLE module-suspend-on-idle should be used.
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#ifdef HAVE_SYS_MMAN_H
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#include <sys/soundcard.h>
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#include <sys/ioctl.h>
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#include <pulse/xmalloc.h>
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#include <pulse/util.h>
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#include <pulsecore/core-error.h>
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#include <pulsecore/thread.h>
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#include <pulsecore/sink.h>
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#include <pulsecore/source.h>
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#include <pulsecore/module.h>
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#include <pulsecore/sample-util.h>
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#include <pulsecore/core-util.h>
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#include <pulsecore/modargs.h>
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#include <pulsecore/log.h>
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#include <pulsecore/macro.h>
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#include <pulsecore/thread-mq.h>
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#include <pulsecore/rtpoll.h>
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#include "module-oss-symdef.h"
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PA_MODULE_AUTHOR("Lennart Poettering");
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PA_MODULE_DESCRIPTION("OSS Sink/Source");
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PA_MODULE_VERSION(PACKAGE_VERSION);
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PA_MODULE_LOAD_ONCE(FALSE);
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"sink_name=<name for the sink> "
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"source_name=<name for the source> "
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"device=<OSS device> "
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"record=<enable source?> "
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"playback=<enable sink?> "
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"format=<sample format> "
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"channels=<number of channels> "
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"fragments=<number of fragments> "
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"fragment_size=<fragment size> "
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"channel_map=<channel map> "
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"mmap=<enable memory mapping?>");
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#define DEFAULT_DEVICE "/dev/dsp"
104
pa_thread_mq thread_mq;
109
pa_memchunk memchunk;
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uint32_t in_fragment_size, out_fragment_size, in_nfrags, out_nfrags, in_hwbuf_size, out_hwbuf_size;
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pa_bool_t use_getospace, use_getispace;
114
pa_bool_t use_getodelay;
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pa_bool_t sink_suspended, source_suspended;
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int nfrags, frag_size;
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unsigned out_mmap_current, in_mmap_current;
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void *in_mmap, *out_mmap;
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pa_memblock **in_mmap_memblocks, **out_mmap_memblocks;
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int in_mmap_saved_nfrags, out_mmap_saved_nfrags;
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pa_rtpoll_item *rtpoll_item;
136
static const char* const valid_modargs[] = {
152
static void trigger(struct userdata *u, pa_bool_t quick) {
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int enable_bits = 0, zero = 0;
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pa_log_debug("trigger");
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if (u->source && PA_SOURCE_IS_OPENED(u->source->thread_info.state))
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enable_bits |= PCM_ENABLE_INPUT;
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if (u->sink && PA_SINK_IS_OPENED(u->sink->thread_info.state))
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enable_bits |= PCM_ENABLE_OUTPUT;
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pa_log_debug("trigger: %i", enable_bits);
174
ioctl(u->fd, SNDCTL_DSP_SETTRIGGER, &zero);
176
#ifdef SNDCTL_DSP_HALT
177
if (enable_bits == 0)
178
if (ioctl(u->fd, SNDCTL_DSP_HALT, NULL) < 0)
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pa_log_warn("SNDCTL_DSP_HALT: %s", pa_cstrerror(errno));
182
if (ioctl(u->fd, SNDCTL_DSP_SETTRIGGER, &enable_bits) < 0)
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pa_log_warn("SNDCTL_DSP_SETTRIGGER: %s", pa_cstrerror(errno));
185
if (u->sink && !(enable_bits & PCM_ENABLE_OUTPUT)) {
186
pa_log_debug("clearing playback buffer");
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pa_silence_memory(u->out_mmap, u->out_hwbuf_size, &u->sink->sample_spec);
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if (ioctl(u->fd, SNDCTL_DSP_POST, NULL) < 0)
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pa_log_warn("SNDCTL_DSP_POST: %s", pa_cstrerror(errno));
198
* Some crappy drivers do not start the recording until we
199
* read something. Without this snippet, poll will never
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* register the fd as ready.
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if (u->source && PA_SOURCE_IS_OPENED(u->source->thread_info.state)) {
204
uint8_t *buf = pa_xnew(uint8_t, u->in_fragment_size);
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pa_read(u->fd, buf, u->in_fragment_size, NULL);
212
static void mmap_fill_memblocks(struct userdata *u, unsigned n) {
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pa_assert(u->out_mmap_memblocks);
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/* pa_log("Mmmap writing %u blocks", n); */
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if (u->out_mmap_memblocks[u->out_mmap_current])
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pa_memblock_unref_fixed(u->out_mmap_memblocks[u->out_mmap_current]);
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chunk.memblock = u->out_mmap_memblocks[u->out_mmap_current] =
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pa_memblock_new_fixed(
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(uint8_t*) u->out_mmap + u->out_fragment_size * u->out_mmap_current,
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u->out_fragment_size,
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chunk.length = pa_memblock_get_length(chunk.memblock);
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pa_sink_render_into_full(u->sink, &chunk);
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u->out_mmap_current++;
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while (u->out_mmap_current >= u->out_nfrags)
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u->out_mmap_current -= u->out_nfrags;
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static int mmap_write(struct userdata *u) {
245
struct count_info info;
250
/* pa_log("Mmmap writing..."); */
252
if (ioctl(u->fd, SNDCTL_DSP_GETOPTR, &info) < 0) {
253
pa_log("SNDCTL_DSP_GETOPTR: %s", pa_cstrerror(errno));
257
info.blocks += u->out_mmap_saved_nfrags;
258
u->out_mmap_saved_nfrags = 0;
261
mmap_fill_memblocks(u, (unsigned) info.blocks);
266
static void mmap_post_memblocks(struct userdata *u, unsigned n) {
268
pa_assert(u->in_mmap_memblocks);
270
/* pa_log("Mmmap reading %u blocks", n); */
275
if (!u->in_mmap_memblocks[u->in_mmap_current]) {
277
chunk.memblock = u->in_mmap_memblocks[u->in_mmap_current] =
278
pa_memblock_new_fixed(
280
(uint8_t*) u->in_mmap + u->in_fragment_size*u->in_mmap_current,
284
chunk.length = pa_memblock_get_length(chunk.memblock);
287
pa_source_post(u->source, &chunk);
290
u->in_mmap_current++;
291
while (u->in_mmap_current >= u->in_nfrags)
292
u->in_mmap_current -= u->in_nfrags;
298
static void mmap_clear_memblocks(struct userdata*u, unsigned n) {
299
unsigned i = u->in_mmap_current;
302
pa_assert(u->in_mmap_memblocks);
304
if (n > u->in_nfrags)
308
if (u->in_mmap_memblocks[i]) {
309
pa_memblock_unref_fixed(u->in_mmap_memblocks[i]);
310
u->in_mmap_memblocks[i] = NULL;
314
while (i >= u->in_nfrags)
321
static int mmap_read(struct userdata *u) {
322
struct count_info info;
324
pa_assert(u->source);
326
/* pa_log("Mmmap reading..."); */
328
if (ioctl(u->fd, SNDCTL_DSP_GETIPTR, &info) < 0) {
329
pa_log("SNDCTL_DSP_GETIPTR: %s", pa_cstrerror(errno));
333
/* pa_log("... %i", info.blocks); */
335
info.blocks += u->in_mmap_saved_nfrags;
336
u->in_mmap_saved_nfrags = 0;
338
if (info.blocks > 0) {
339
mmap_post_memblocks(u, (unsigned) info.blocks);
340
mmap_clear_memblocks(u, u->in_nfrags/2);
346
static pa_usec_t mmap_sink_get_latency(struct userdata *u) {
347
struct count_info info;
352
if (ioctl(u->fd, SNDCTL_DSP_GETOPTR, &info) < 0) {
353
pa_log("SNDCTL_DSP_GETOPTR: %s", pa_cstrerror(errno));
357
u->out_mmap_saved_nfrags += info.blocks;
359
bpos = ((u->out_mmap_current + (unsigned) u->out_mmap_saved_nfrags) * u->out_fragment_size) % u->out_hwbuf_size;
361
if (bpos <= (size_t) info.ptr)
362
n = u->out_hwbuf_size - ((size_t) info.ptr - bpos);
364
n = bpos - (size_t) info.ptr;
366
/* 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); */
368
return pa_bytes_to_usec(n, &u->sink->sample_spec);
371
static pa_usec_t mmap_source_get_latency(struct userdata *u) {
372
struct count_info info;
377
if (ioctl(u->fd, SNDCTL_DSP_GETIPTR, &info) < 0) {
378
pa_log("SNDCTL_DSP_GETIPTR: %s", pa_cstrerror(errno));
382
u->in_mmap_saved_nfrags += info.blocks;
383
bpos = ((u->in_mmap_current + (unsigned) u->in_mmap_saved_nfrags) * u->in_fragment_size) % u->in_hwbuf_size;
385
if (bpos <= (size_t) info.ptr)
386
n = (size_t) info.ptr - bpos;
388
n = u->in_hwbuf_size - bpos + (size_t) info.ptr;
390
/* 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); */
392
return pa_bytes_to_usec(n, &u->source->sample_spec);
395
static pa_usec_t io_sink_get_latency(struct userdata *u) {
400
if (u->use_getodelay) {
403
if (ioctl(u->fd, SNDCTL_DSP_GETODELAY, &arg) < 0) {
404
pa_log_info("Device doesn't support SNDCTL_DSP_GETODELAY: %s", pa_cstrerror(errno));
405
u->use_getodelay = 0;
407
r = pa_bytes_to_usec((size_t) arg, &u->sink->sample_spec);
411
if (!u->use_getodelay && u->use_getospace) {
412
struct audio_buf_info info;
414
if (ioctl(u->fd, SNDCTL_DSP_GETOSPACE, &info) < 0) {
415
pa_log_info("Device doesn't support SNDCTL_DSP_GETOSPACE: %s", pa_cstrerror(errno));
416
u->use_getospace = 0;
418
r = pa_bytes_to_usec((size_t) info.bytes, &u->sink->sample_spec);
421
if (u->memchunk.memblock)
422
r += pa_bytes_to_usec(u->memchunk.length, &u->sink->sample_spec);
428
static pa_usec_t io_source_get_latency(struct userdata *u) {
433
if (u->use_getispace) {
434
struct audio_buf_info info;
436
if (ioctl(u->fd, SNDCTL_DSP_GETISPACE, &info) < 0) {
437
pa_log_info("Device doesn't support SNDCTL_DSP_GETISPACE: %s", pa_cstrerror(errno));
438
u->use_getispace = 0;
440
r = pa_bytes_to_usec((size_t) info.bytes, &u->source->sample_spec);
446
static void build_pollfd(struct userdata *u) {
447
struct pollfd *pollfd;
450
pa_assert(u->fd >= 0);
453
pa_rtpoll_item_free(u->rtpoll_item);
455
u->rtpoll_item = pa_rtpoll_item_new(u->rtpoll, PA_RTPOLL_NEVER, 1);
456
pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL);
462
static int suspend(struct userdata *u) {
464
pa_assert(u->fd >= 0);
466
pa_log_info("Suspending...");
468
if (u->out_mmap_memblocks) {
470
for (i = 0; i < u->out_nfrags; i++)
471
if (u->out_mmap_memblocks[i]) {
472
pa_memblock_unref_fixed(u->out_mmap_memblocks[i]);
473
u->out_mmap_memblocks[i] = NULL;
477
if (u->in_mmap_memblocks) {
479
for (i = 0; i < u->in_nfrags; i++)
480
if (u->in_mmap_memblocks[i]) {
481
pa_memblock_unref_fixed(u->in_mmap_memblocks[i]);
482
u->in_mmap_memblocks[i] = NULL;
486
if (u->in_mmap && u->in_mmap != MAP_FAILED) {
487
munmap(u->in_mmap, u->in_hwbuf_size);
491
if (u->out_mmap && u->out_mmap != MAP_FAILED) {
492
munmap(u->out_mmap, u->out_hwbuf_size);
497
ioctl(u->fd, SNDCTL_DSP_SYNC, NULL);
501
if (u->rtpoll_item) {
502
pa_rtpoll_item_free(u->rtpoll_item);
503
u->rtpoll_item = NULL;
506
pa_log_info("Device suspended...");
511
static int sink_get_volume(pa_sink *s);
512
static int source_get_volume(pa_source *s);
514
static int unsuspend(struct userdata *u) {
516
pa_sample_spec ss, *ss_original;
517
int frag_size, in_frag_size, out_frag_size;
518
int in_nfrags, out_nfrags;
519
struct audio_buf_info info;
522
pa_assert(u->fd < 0);
526
pa_log_info("Trying resume...");
528
if ((u->fd = pa_oss_open(u->device_name, &m, NULL)) < 0) {
529
pa_log_warn("Resume failed, device busy (%s)", pa_cstrerror(errno));
534
pa_log_warn("Resume failed, couldn't open device with original access mode.");
538
if (u->nfrags >= 2 && u->frag_size >= 1)
539
if (pa_oss_set_fragments(u->fd, u->nfrags, u->frag_size) < 0) {
540
pa_log_warn("Resume failed, couldn't set original fragment settings.");
544
ss = *(ss_original = u->sink ? &u->sink->sample_spec : &u->source->sample_spec);
545
if (pa_oss_auto_format(u->fd, &ss) < 0 || !pa_sample_spec_equal(&ss, ss_original)) {
546
pa_log_warn("Resume failed, couldn't set original sample format settings.");
550
if (ioctl(u->fd, SNDCTL_DSP_GETBLKSIZE, &frag_size) < 0) {
551
pa_log_warn("SNDCTL_DSP_GETBLKSIZE: %s", pa_cstrerror(errno));
555
in_frag_size = out_frag_size = frag_size;
556
in_nfrags = out_nfrags = u->nfrags;
558
if (ioctl(u->fd, SNDCTL_DSP_GETISPACE, &info) >= 0) {
559
in_frag_size = info.fragsize;
560
in_nfrags = info.fragstotal;
563
if (ioctl(u->fd, SNDCTL_DSP_GETOSPACE, &info) >= 0) {
564
out_frag_size = info.fragsize;
565
out_nfrags = info.fragstotal;
568
if ((u->source && (in_frag_size != (int) u->in_fragment_size || in_nfrags != (int) u->in_nfrags)) ||
569
(u->sink && (out_frag_size != (int) u->out_fragment_size || out_nfrags != (int) u->out_nfrags))) {
570
pa_log_warn("Resume failed, input fragment settings don't match.");
576
if ((u->in_mmap = mmap(NULL, u->in_hwbuf_size, PROT_READ, MAP_SHARED, u->fd, 0)) == MAP_FAILED) {
577
pa_log("Resume failed, mmap(): %s", pa_cstrerror(errno));
583
if ((u->out_mmap = mmap(NULL, u->out_hwbuf_size, PROT_WRITE, MAP_SHARED, u->fd, 0)) == MAP_FAILED) {
584
pa_log("Resume failed, mmap(): %s", pa_cstrerror(errno));
585
if (u->in_mmap && u->in_mmap != MAP_FAILED) {
586
munmap(u->in_mmap, u->in_hwbuf_size);
593
pa_silence_memory(u->out_mmap, u->out_hwbuf_size, &ss);
597
u->out_mmap_current = u->in_mmap_current = 0;
598
u->out_mmap_saved_nfrags = u->in_mmap_saved_nfrags = 0;
600
pa_assert(!u->rtpoll_item);
605
sink_get_volume(u->sink);
607
source_get_volume(u->source);
609
pa_log_info("Resumed successfully...");
619
static int sink_process_msg(pa_msgobject *o, int code, void *data, int64_t offset, pa_memchunk *chunk) {
620
struct userdata *u = PA_SINK(o)->userdata;
622
pa_bool_t do_trigger = FALSE, quick = TRUE;
626
case PA_SINK_MESSAGE_GET_LATENCY: {
631
r = mmap_sink_get_latency(u);
633
r = io_sink_get_latency(u);
636
*((pa_usec_t*) data) = r;
641
case PA_SINK_MESSAGE_SET_STATE:
643
switch ((pa_sink_state_t) PA_PTR_TO_UINT(data)) {
645
case PA_SINK_SUSPENDED:
646
pa_assert(PA_SINK_IS_OPENED(u->sink->thread_info.state));
648
if (!u->source || u->source_suspended) {
655
u->sink_suspended = TRUE;
659
case PA_SINK_RUNNING:
661
if (u->sink->thread_info.state == PA_SINK_INIT) {
663
quick = u->source && PA_SOURCE_IS_OPENED(u->source->thread_info.state);
666
if (u->sink->thread_info.state == PA_SINK_SUSPENDED) {
668
if (!u->source || u->source_suspended) {
669
if (unsuspend(u) < 0)
676
u->out_mmap_current = 0;
677
u->out_mmap_saved_nfrags = 0;
679
u->sink_suspended = FALSE;
684
case PA_SINK_UNLINKED:
693
ret = pa_sink_process_msg(o, code, data, offset, chunk);
701
static int source_process_msg(pa_msgobject *o, int code, void *data, int64_t offset, pa_memchunk *chunk) {
702
struct userdata *u = PA_SOURCE(o)->userdata;
704
int do_trigger = FALSE, quick = TRUE;
708
case PA_SOURCE_MESSAGE_GET_LATENCY: {
713
r = mmap_source_get_latency(u);
715
r = io_source_get_latency(u);
718
*((pa_usec_t*) data) = r;
722
case PA_SOURCE_MESSAGE_SET_STATE:
724
switch ((pa_source_state_t) PA_PTR_TO_UINT(data)) {
725
case PA_SOURCE_SUSPENDED:
726
pa_assert(PA_SOURCE_IS_OPENED(u->source->thread_info.state));
728
if (!u->sink || u->sink_suspended) {
735
u->source_suspended = TRUE;
739
case PA_SOURCE_RUNNING:
741
if (u->source->thread_info.state == PA_SOURCE_INIT) {
743
quick = u->sink && PA_SINK_IS_OPENED(u->sink->thread_info.state);
746
if (u->source->thread_info.state == PA_SOURCE_SUSPENDED) {
748
if (!u->sink || u->sink_suspended) {
749
if (unsuspend(u) < 0)
756
u->in_mmap_current = 0;
757
u->in_mmap_saved_nfrags = 0;
759
u->source_suspended = FALSE;
763
case PA_SOURCE_UNLINKED:
772
ret = pa_source_process_msg(o, code, data, offset, chunk);
780
static int sink_get_volume(pa_sink *s) {
784
pa_assert_se(u = s->userdata);
786
pa_assert(u->mixer_devmask & (SOUND_MASK_VOLUME|SOUND_MASK_PCM));
788
if (u->mixer_devmask & SOUND_MASK_VOLUME)
789
if ((r = pa_oss_get_volume(u->mixer_fd, SOUND_MIXER_READ_VOLUME, &s->sample_spec, &s->volume)) >= 0)
792
if (u->mixer_devmask & SOUND_MASK_PCM)
793
if ((r = pa_oss_get_volume(u->mixer_fd, SOUND_MIXER_READ_PCM, &s->sample_spec, &s->volume)) >= 0)
796
pa_log_info("Device doesn't support reading mixer settings: %s", pa_cstrerror(errno));
800
static int sink_set_volume(pa_sink *s) {
804
pa_assert_se(u = s->userdata);
806
pa_assert(u->mixer_devmask & (SOUND_MASK_VOLUME|SOUND_MASK_PCM));
808
if (u->mixer_devmask & SOUND_MASK_VOLUME)
809
if ((r = pa_oss_set_volume(u->mixer_fd, SOUND_MIXER_WRITE_VOLUME, &s->sample_spec, &s->volume)) >= 0)
812
if (u->mixer_devmask & SOUND_MASK_PCM)
813
if ((r = pa_oss_get_volume(u->mixer_fd, SOUND_MIXER_WRITE_PCM, &s->sample_spec, &s->volume)) >= 0)
816
pa_log_info("Device doesn't support writing mixer settings: %s", pa_cstrerror(errno));
820
static int source_get_volume(pa_source *s) {
824
pa_assert_se(u = s->userdata);
826
pa_assert(u->mixer_devmask & (SOUND_MASK_IGAIN|SOUND_MASK_RECLEV));
828
if (u->mixer_devmask & SOUND_MASK_IGAIN)
829
if ((r = pa_oss_get_volume(u->mixer_fd, SOUND_MIXER_READ_IGAIN, &s->sample_spec, &s->volume)) >= 0)
832
if (u->mixer_devmask & SOUND_MASK_RECLEV)
833
if ((r = pa_oss_get_volume(u->mixer_fd, SOUND_MIXER_READ_RECLEV, &s->sample_spec, &s->volume)) >= 0)
836
pa_log_info("Device doesn't support reading mixer settings: %s", pa_cstrerror(errno));
840
static int source_set_volume(pa_source *s) {
844
pa_assert_se(u = s->userdata);
846
pa_assert(u->mixer_devmask & (SOUND_MASK_IGAIN|SOUND_MASK_RECLEV));
848
if (u->mixer_devmask & SOUND_MASK_IGAIN)
849
if ((r = pa_oss_set_volume(u->mixer_fd, SOUND_MIXER_WRITE_IGAIN, &s->sample_spec, &s->volume)) >= 0)
852
if (u->mixer_devmask & SOUND_MASK_RECLEV)
853
if ((r = pa_oss_get_volume(u->mixer_fd, SOUND_MIXER_WRITE_RECLEV, &s->sample_spec, &s->volume)) >= 0)
856
pa_log_info("Device doesn't support writing mixer settings: %s", pa_cstrerror(errno));
860
static void thread_func(void *userdata) {
861
struct userdata *u = userdata;
862
int write_type = 0, read_type = 0;
867
pa_log_debug("Thread starting up");
869
if (u->core->realtime_scheduling)
870
pa_make_realtime(u->core->realtime_priority);
872
pa_thread_mq_install(&u->thread_mq);
873
pa_rtpoll_install(u->rtpoll);
878
/* pa_log("loop"); */
880
if (PA_SINK_IS_OPENED(u->sink->thread_info.state))
881
if (u->sink->thread_info.rewind_requested)
882
pa_sink_process_rewind(u->sink, 0);
884
/* Render some data and write it to the dsp */
886
if (u->sink && PA_SINK_IS_OPENED(u->sink->thread_info.state) && ((revents & POLLOUT) || u->use_mmap || u->use_getospace)) {
890
if ((ret = mmap_write(u)) < 0)
900
pa_bool_t loop = FALSE, work_done = FALSE;
902
l = (ssize_t) u->out_fragment_size;
904
if (u->use_getospace) {
907
if (ioctl(u->fd, SNDCTL_DSP_GETOSPACE, &info) < 0) {
908
pa_log_info("Device doesn't support SNDCTL_DSP_GETOSPACE: %s", pa_cstrerror(errno));
909
u->use_getospace = FALSE;
913
/* We loop only if GETOSPACE worked and we
914
* actually *know* that we can write more than
915
* one fragment at a time */
920
/* Round down to multiples of the fragment size,
921
* because OSS needs that (at least some versions
923
l = (l/(ssize_t) u->out_fragment_size) * (ssize_t) u->out_fragment_size;
925
/* Hmm, so poll() signalled us that we can read
926
* something, but GETOSPACE told us there was nothing?
927
* Hmm, make the best of it, try to read some data, to
928
* avoid spinning forever. */
929
if (l <= 0 && (revents & POLLOUT)) {
930
l = (ssize_t) u->out_fragment_size;
938
if (u->memchunk.length <= 0)
939
pa_sink_render(u->sink, (size_t) l, &u->memchunk);
941
pa_assert(u->memchunk.length > 0);
943
p = pa_memblock_acquire(u->memchunk.memblock);
944
t = pa_write(u->fd, (uint8_t*) p + u->memchunk.index, u->memchunk.length, &write_type);
945
pa_memblock_release(u->memchunk.memblock);
947
/* pa_log("wrote %i bytes of %u", t, l); */
956
else if (errno == EAGAIN) {
957
pa_log_debug("EAGAIN");
963
pa_log("Failed to write data to DSP: %s", pa_cstrerror(errno));
969
u->memchunk.index += (size_t) t;
970
u->memchunk.length -= (size_t) t;
972
if (u->memchunk.length <= 0) {
973
pa_memblock_unref(u->memchunk.memblock);
974
pa_memchunk_reset(&u->memchunk);
992
/* Try to read some data and pass it on to the source driver. */
994
if (u->source && PA_SOURCE_IS_OPENED(u->source->thread_info.state) && ((revents & POLLIN) || u->use_mmap || u->use_getispace)) {
998
if ((ret = mmap_read(u)) < 0)
1010
pa_memchunk memchunk;
1011
pa_bool_t loop = FALSE, work_done = FALSE;
1013
l = (ssize_t) u->in_fragment_size;
1015
if (u->use_getispace) {
1016
audio_buf_info info;
1018
if (ioctl(u->fd, SNDCTL_DSP_GETISPACE, &info) < 0) {
1019
pa_log_info("Device doesn't support SNDCTL_DSP_GETISPACE: %s", pa_cstrerror(errno));
1020
u->use_getispace = FALSE;
1027
l = (l/(ssize_t) u->in_fragment_size) * (ssize_t) u->in_fragment_size;
1029
if (l <= 0 && (revents & POLLIN)) {
1030
l = (ssize_t) u->in_fragment_size;
1040
memchunk.memblock = pa_memblock_new(u->core->mempool, (size_t) -1);
1042
k = pa_memblock_get_length(memchunk.memblock);
1047
k = (k/u->frame_size)*u->frame_size;
1049
p = pa_memblock_acquire(memchunk.memblock);
1050
t = pa_read(u->fd, p, k, &read_type);
1051
pa_memblock_release(memchunk.memblock);
1053
pa_assert(t != 0); /* EOF cannot happen */
1055
/* pa_log("read %i bytes of %u", t, l); */
1058
pa_memblock_unref(memchunk.memblock);
1063
else if (errno == EAGAIN) {
1064
pa_log_debug("EAGAIN");
1070
pa_log("Failed to read data from DSP: %s", pa_cstrerror(errno));
1076
memchunk.length = (size_t) t;
1078
pa_source_post(u->source, &memchunk);
1079
pa_memblock_unref(memchunk.memblock);
1096
/* pa_log("loop2 revents=%i", revents); */
1098
if (u->rtpoll_item) {
1099
struct pollfd *pollfd;
1101
pa_assert(u->fd >= 0);
1103
pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL);
1104
pollfd->events = (short)
1105
(((u->source && PA_SOURCE_IS_OPENED(u->source->thread_info.state)) ? POLLIN : 0) |
1106
((u->sink && PA_SINK_IS_OPENED(u->sink->thread_info.state)) ? POLLOUT : 0));
1109
/* Hmm, nothing to do. Let's sleep */
1110
if ((ret = pa_rtpoll_run(u->rtpoll, TRUE)) < 0)
1116
if (u->rtpoll_item) {
1117
struct pollfd *pollfd;
1119
pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL);
1121
if (pollfd->revents & ~(POLLOUT|POLLIN)) {
1122
pa_log("DSP shutdown.");
1126
revents = pollfd->revents;
1132
/* If this was no regular exit from the loop we have to continue
1133
* processing messages until we received PA_MESSAGE_SHUTDOWN */
1134
pa_asyncmsgq_post(u->thread_mq.outq, PA_MSGOBJECT(u->core), PA_CORE_MESSAGE_UNLOAD_MODULE, u->module, 0, NULL, NULL);
1135
pa_asyncmsgq_wait_for(u->thread_mq.inq, PA_MESSAGE_SHUTDOWN);
1138
pa_log_debug("Thread shutting down");
1141
int pa__init(pa_module*m) {
1143
struct audio_buf_info info;
1144
struct userdata *u = NULL;
1147
int nfrags, frag_size;
1149
pa_bool_t record = TRUE, playback = TRUE, use_mmap = TRUE;
1152
pa_modargs *ma = NULL;
1155
pa_bool_t namereg_fail;
1156
pa_sink_new_data sink_new_data;
1157
pa_source_new_data source_new_data;
1161
if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
1162
pa_log("Failed to parse module arguments.");
1166
if (pa_modargs_get_value_boolean(ma, "record", &record) < 0 || pa_modargs_get_value_boolean(ma, "playback", &playback) < 0) {
1167
pa_log("record= and playback= expect boolean argument.");
1171
if (!playback && !record) {
1172
pa_log("Neither playback nor record enabled for device.");
1176
mode = (playback && record) ? O_RDWR : (playback ? O_WRONLY : (record ? O_RDONLY : 0));
1178
ss = m->core->default_sample_spec;
1179
if (pa_modargs_get_sample_spec_and_channel_map(ma, &ss, &map, PA_CHANNEL_MAP_OSS) < 0) {
1180
pa_log("Failed to parse sample specification or channel map");
1184
nfrags = (int) m->core->default_n_fragments;
1185
frag_size = (int) pa_usec_to_bytes(m->core->default_fragment_size_msec*1000, &ss);
1187
frag_size = (int) pa_frame_size(&ss);
1189
if (pa_modargs_get_value_s32(ma, "fragments", &nfrags) < 0 || pa_modargs_get_value_s32(ma, "fragment_size", &frag_size) < 0) {
1190
pa_log("Failed to parse fragments arguments");
1194
if (pa_modargs_get_value_boolean(ma, "mmap", &use_mmap) < 0) {
1195
pa_log("Failed to parse mmap argument.");
1199
if ((fd = pa_oss_open(dev = pa_modargs_get_value(ma, "device", DEFAULT_DEVICE), &mode, &caps)) < 0)
1202
if (use_mmap && (!(caps & DSP_CAP_MMAP) || !(caps & DSP_CAP_TRIGGER))) {
1203
pa_log_info("OSS device not mmap capable, falling back to UNIX read/write mode.");
1207
if (use_mmap && mode == O_WRONLY) {
1208
pa_log_info("Device opened for playback only, cannot do memory mapping, falling back to UNIX write() mode.");
1212
if (pa_oss_get_hw_description(dev, hwdesc, sizeof(hwdesc)) >= 0)
1213
pa_log_info("Hardware name is '%s'.", hwdesc);
1217
pa_log_info("Device opened in %s mode.", mode == O_WRONLY ? "O_WRONLY" : (mode == O_RDONLY ? "O_RDONLY" : "O_RDWR"));
1219
if (nfrags >= 2 && frag_size >= 1)
1220
if (pa_oss_set_fragments(fd, nfrags, frag_size) < 0)
1223
if (pa_oss_auto_format(fd, &ss) < 0)
1226
if (ioctl(fd, SNDCTL_DSP_GETBLKSIZE, &frag_size) < 0) {
1227
pa_log("SNDCTL_DSP_GETBLKSIZE: %s", pa_cstrerror(errno));
1230
pa_assert(frag_size > 0);
1232
u = pa_xnew0(struct userdata, 1);
1238
u->use_getospace = u->use_getispace = TRUE;
1239
u->use_getodelay = TRUE;
1241
u->frame_size = pa_frame_size(&ss);
1242
u->device_name = pa_xstrdup(dev);
1243
u->in_nfrags = u->out_nfrags = (uint32_t) (u->nfrags = nfrags);
1244
u->out_fragment_size = u->in_fragment_size = (uint32_t) (u->frag_size = frag_size);
1245
u->use_mmap = use_mmap;
1246
u->rtpoll = pa_rtpoll_new();
1247
pa_thread_mq_init(&u->thread_mq, m->core->mainloop, u->rtpoll);
1248
u->rtpoll_item = NULL;
1251
if (ioctl(fd, SNDCTL_DSP_GETISPACE, &info) >= 0) {
1252
pa_log_info("Input -- %u fragments of size %u.", info.fragstotal, info.fragsize);
1253
u->in_fragment_size = (uint32_t) info.fragsize;
1254
u->in_nfrags = (uint32_t) info.fragstotal;
1255
u->use_getispace = TRUE;
1258
if (ioctl(fd, SNDCTL_DSP_GETOSPACE, &info) >= 0) {
1259
pa_log_info("Output -- %u fragments of size %u.", info.fragstotal, info.fragsize);
1260
u->out_fragment_size = (uint32_t) info.fragsize;
1261
u->out_nfrags = (uint32_t) info.fragstotal;
1262
u->use_getospace = TRUE;
1265
u->in_hwbuf_size = u->in_nfrags * u->in_fragment_size;
1266
u->out_hwbuf_size = u->out_nfrags * u->out_fragment_size;
1268
if (mode != O_WRONLY) {
1269
char *name_buf = NULL;
1272
if ((u->in_mmap = mmap(NULL, u->in_hwbuf_size, PROT_READ, MAP_SHARED, fd, 0)) == MAP_FAILED) {
1273
pa_log_warn("mmap(PROT_READ) failed, reverting to non-mmap mode: %s", pa_cstrerror(errno));
1274
use_mmap = u->use_mmap = FALSE;
1277
pa_log_debug("Successfully mmap()ed input buffer.");
1280
if ((name = pa_modargs_get_value(ma, "source_name", NULL)))
1281
namereg_fail = TRUE;
1283
name = name_buf = pa_sprintf_malloc("oss_input.%s", pa_path_get_filename(dev));
1284
namereg_fail = FALSE;
1287
pa_source_new_data_init(&source_new_data);
1288
source_new_data.driver = __FILE__;
1289
source_new_data.module = m;
1290
pa_source_new_data_set_name(&source_new_data, name);
1291
source_new_data.namereg_fail = namereg_fail;
1292
pa_source_new_data_set_sample_spec(&source_new_data, &ss);
1293
pa_source_new_data_set_channel_map(&source_new_data, &map);
1294
pa_proplist_sets(source_new_data.proplist, PA_PROP_DEVICE_STRING, dev);
1295
pa_proplist_sets(source_new_data.proplist, PA_PROP_DEVICE_API, "oss");
1296
pa_proplist_sets(source_new_data.proplist, PA_PROP_DEVICE_DESCRIPTION, hwdesc[0] ? hwdesc : dev);
1297
pa_proplist_sets(source_new_data.proplist, PA_PROP_DEVICE_ACCESS_MODE, use_mmap ? "mmap" : "serial");
1298
pa_proplist_setf(source_new_data.proplist, PA_PROP_DEVICE_BUFFERING_BUFFER_SIZE, "%lu", (unsigned long) (u->in_hwbuf_size));
1299
pa_proplist_setf(source_new_data.proplist, PA_PROP_DEVICE_BUFFERING_FRAGMENT_SIZE, "%lu", (unsigned long) (u->in_fragment_size));
1301
u->source = pa_source_new(m->core, &source_new_data, PA_SOURCE_HARDWARE|PA_SOURCE_LATENCY);
1302
pa_source_new_data_done(&source_new_data);
1306
pa_log("Failed to create source object");
1310
u->source->parent.process_msg = source_process_msg;
1311
u->source->userdata = u;
1313
pa_source_set_asyncmsgq(u->source, u->thread_mq.inq);
1314
pa_source_set_rtpoll(u->source, u->rtpoll);
1315
u->source->refresh_volume = TRUE;
1318
u->in_mmap_memblocks = pa_xnew0(pa_memblock*, u->in_nfrags);
1321
if (mode != O_RDONLY) {
1322
char *name_buf = NULL;
1325
if ((u->out_mmap = mmap(NULL, u->out_hwbuf_size, PROT_WRITE, MAP_SHARED, fd, 0)) == MAP_FAILED) {
1326
if (mode == O_RDWR) {
1327
pa_log_debug("mmap() failed for input. Changing to O_WRONLY mode.");
1331
pa_log_warn("mmap(PROT_WRITE) failed, reverting to non-mmap mode: %s", pa_cstrerror(errno));
1332
u->use_mmap = use_mmap = FALSE;
1336
pa_log_debug("Successfully mmap()ed output buffer.");
1337
pa_silence_memory(u->out_mmap, u->out_hwbuf_size, &ss);
1341
if ((name = pa_modargs_get_value(ma, "sink_name", NULL)))
1342
namereg_fail = TRUE;
1344
name = name_buf = pa_sprintf_malloc("oss_output.%s", pa_path_get_filename(dev));
1345
namereg_fail = FALSE;
1348
pa_sink_new_data_init(&sink_new_data);
1349
sink_new_data.driver = __FILE__;
1350
sink_new_data.module = m;
1351
pa_sink_new_data_set_name(&sink_new_data, name);
1352
sink_new_data.namereg_fail = namereg_fail;
1353
pa_sink_new_data_set_sample_spec(&sink_new_data, &ss);
1354
pa_sink_new_data_set_channel_map(&sink_new_data, &map);
1355
pa_proplist_sets(sink_new_data.proplist, PA_PROP_DEVICE_STRING, dev);
1356
pa_proplist_sets(sink_new_data.proplist, PA_PROP_DEVICE_API, "oss");
1357
pa_proplist_sets(sink_new_data.proplist, PA_PROP_DEVICE_DESCRIPTION, hwdesc[0] ? hwdesc : dev);
1358
pa_proplist_sets(sink_new_data.proplist, PA_PROP_DEVICE_ACCESS_MODE, use_mmap ? "mmap" : "serial");
1359
pa_proplist_setf(sink_new_data.proplist, PA_PROP_DEVICE_BUFFERING_BUFFER_SIZE, "%lu", (unsigned long) (u->out_hwbuf_size));
1360
pa_proplist_setf(sink_new_data.proplist, PA_PROP_DEVICE_BUFFERING_FRAGMENT_SIZE, "%lu", (unsigned long) (u->out_fragment_size));
1362
u->sink = pa_sink_new(m->core, &sink_new_data, PA_SINK_HARDWARE|PA_SINK_LATENCY);
1363
pa_sink_new_data_done(&sink_new_data);
1367
pa_log("Failed to create sink object");
1371
u->sink->parent.process_msg = sink_process_msg;
1372
u->sink->userdata = u;
1374
pa_sink_set_asyncmsgq(u->sink, u->thread_mq.inq);
1375
pa_sink_set_rtpoll(u->sink, u->rtpoll);
1376
u->sink->refresh_volume = TRUE;
1378
u->sink->thread_info.max_request = u->out_hwbuf_size;
1381
u->out_mmap_memblocks = pa_xnew0(pa_memblock*, u->out_nfrags);
1384
if ((u->mixer_fd = pa_oss_open_mixer_for_device(u->device_name)) >= 0) {
1385
pa_bool_t do_close = TRUE;
1386
u->mixer_devmask = 0;
1388
if (ioctl(fd, SOUND_MIXER_READ_DEVMASK, &u->mixer_devmask) < 0)
1389
pa_log_warn("SOUND_MIXER_READ_DEVMASK failed: %s", pa_cstrerror(errno));
1392
if (u->sink && (u->mixer_devmask & (SOUND_MASK_VOLUME|SOUND_MASK_PCM))) {
1393
pa_log_debug("Found hardware mixer track for playback.");
1394
u->sink->flags |= PA_SINK_HW_VOLUME_CTRL;
1395
u->sink->get_volume = sink_get_volume;
1396
u->sink->set_volume = sink_set_volume;
1400
if (u->source && (u->mixer_devmask & (SOUND_MASK_RECLEV|SOUND_MASK_IGAIN))) {
1401
pa_log_debug("Found hardware mixer track for recording.");
1402
u->source->flags |= PA_SOURCE_HW_VOLUME_CTRL;
1403
u->source->get_volume = source_get_volume;
1404
u->source->set_volume = source_set_volume;
1410
pa_close(u->mixer_fd);
1417
pa_assert(u->source || u->sink);
1419
pa_memchunk_reset(&u->memchunk);
1421
if (!(u->thread = pa_thread_new(thread_func, u))) {
1422
pa_log("Failed to create thread.");
1426
/* Read mixer settings */
1428
if (sink_new_data.volume_is_set) {
1429
if (u->sink->set_volume)
1430
u->sink->set_volume(u->sink);
1432
if (u->sink->get_volume)
1433
u->sink->get_volume(u->sink);
1438
if (source_new_data.volume_is_set) {
1439
if (u->source->set_volume)
1440
u->source->set_volume(u->source);
1442
if (u->source->get_volume)
1443
u->source->get_volume(u->source);
1448
pa_sink_put(u->sink);
1450
pa_source_put(u->source);
1452
pa_modargs_free(ma);
1464
pa_modargs_free(ma);
1469
void pa__done(pa_module*m) {
1474
if (!(u = m->userdata))
1478
pa_sink_unlink(u->sink);
1481
pa_source_unlink(u->source);
1484
pa_asyncmsgq_send(u->thread_mq.inq, NULL, PA_MESSAGE_SHUTDOWN, NULL, 0, NULL);
1485
pa_thread_free(u->thread);
1488
pa_thread_mq_done(&u->thread_mq);
1491
pa_sink_unref(u->sink);
1494
pa_source_unref(u->source);
1496
if (u->memchunk.memblock)
1497
pa_memblock_unref(u->memchunk.memblock);
1500
pa_rtpoll_item_free(u->rtpoll_item);
1503
pa_rtpoll_free(u->rtpoll);
1505
if (u->out_mmap_memblocks) {
1507
for (i = 0; i < u->out_nfrags; i++)
1508
if (u->out_mmap_memblocks[i])
1509
pa_memblock_unref_fixed(u->out_mmap_memblocks[i]);
1510
pa_xfree(u->out_mmap_memblocks);
1513
if (u->in_mmap_memblocks) {
1515
for (i = 0; i < u->in_nfrags; i++)
1516
if (u->in_mmap_memblocks[i])
1517
pa_memblock_unref_fixed(u->in_mmap_memblocks[i]);
1518
pa_xfree(u->in_mmap_memblocks);
1521
if (u->in_mmap && u->in_mmap != MAP_FAILED)
1522
munmap(u->in_mmap, u->in_hwbuf_size);
1524
if (u->out_mmap && u->out_mmap != MAP_FAILED)
1525
munmap(u->out_mmap, u->out_hwbuf_size);
1530
if (u->mixer_fd >= 0)
1531
pa_close(u->mixer_fd);
1533
pa_xfree(u->device_name);
added
removed
src/modules/module-oss.c
