4 This file is part of PulseAudio.
6 Copyright 2004-2006 Lennart Poettering
7 Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
9 PulseAudio is free software; you can redistribute it and/or modify
10 it under the terms of the GNU Lesser General Public License as published
11 by the Free Software Foundation; either version 2 of the License,
12 or (at your option) any later version.
14 PulseAudio is distributed in the hope that it will be useful, but
15 WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 General Public License for more details.
19 You should have received a copy of the GNU Lesser General Public License
20 along with PulseAudio; if not, write to the Free Software
21 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
25 /* General power management rules:
27 * When SUSPENDED we close the audio device.
29 * We make no difference between IDLE and RUNNING in our handling.
31 * As long as we are in RUNNING/IDLE state we will *always* write data to
32 * the device. If none is avilable from the inputs, we write silence
35 * If power should be saved on IDLE module-suspend-on-idle should be used.
43 #ifdef HAVE_SYS_MMAN_H
47 #include <sys/soundcard.h>
48 #include <sys/ioctl.h>
60 #include <pulse/xmalloc.h>
61 #include <pulse/util.h>
63 #include <pulsecore/core-error.h>
64 #include <pulsecore/thread.h>
65 #include <pulsecore/sink.h>
66 #include <pulsecore/source.h>
67 #include <pulsecore/module.h>
68 #include <pulsecore/sample-util.h>
69 #include <pulsecore/core-util.h>
70 #include <pulsecore/modargs.h>
71 #include <pulsecore/log.h>
72 #include <pulsecore/macro.h>
73 #include <pulsecore/thread-mq.h>
74 #include <pulsecore/rtpoll.h>
77 #include "module-oss-symdef.h"
79 PA_MODULE_AUTHOR("Lennart Poettering");
80 PA_MODULE_DESCRIPTION("OSS Sink/Source");
81 PA_MODULE_VERSION(PACKAGE_VERSION
);
82 PA_MODULE_LOAD_ONCE(FALSE
);
84 "sink_name=<name for the sink> "
85 "source_name=<name for the source> "
86 "device=<OSS device> "
87 "record=<enable source?> "
88 "playback=<enable sink?> "
89 "format=<sample format> "
90 "channels=<number of channels> "
92 "fragments=<number of fragments> "
93 "fragment_size=<fragment size> "
94 "channel_map=<channel map> "
95 "mmap=<enable memory mapping?>");
97 #define DEFAULT_DEVICE "/dev/dsp"
106 pa_thread_mq thread_mq
;
111 pa_memchunk memchunk
;
114 uint32_t in_fragment_size
, out_fragment_size
, in_nfrags
, out_nfrags
, in_hwbuf_size
, out_hwbuf_size
;
115 pa_bool_t use_getospace
, use_getispace
;
116 pa_bool_t use_getodelay
;
118 pa_bool_t sink_suspended
, source_suspended
;
126 int nfrags
, frag_size
;
129 unsigned out_mmap_current
, in_mmap_current
;
130 void *in_mmap
, *out_mmap
;
131 pa_memblock
**in_mmap_memblocks
, **out_mmap_memblocks
;
133 int in_mmap_saved_nfrags
, out_mmap_saved_nfrags
;
135 pa_rtpoll_item
*rtpoll_item
;
138 static const char* const valid_modargs
[] = {
154 static void trigger(struct userdata
*u
, pa_bool_t quick
) {
155 int enable_bits
= 0, zero
= 0;
162 pa_log_debug("trigger");
164 if (u
->source
&& PA_SOURCE_OPENED(u
->source
->thread_info
.state
))
165 enable_bits
|= PCM_ENABLE_INPUT
;
167 if (u
->sink
&& PA_SINK_OPENED(u
->sink
->thread_info
.state
))
168 enable_bits
|= PCM_ENABLE_OUTPUT
;
170 pa_log_debug("trigger: %i", enable_bits
);
176 ioctl(u
->fd
, SNDCTL_DSP_SETTRIGGER
, &zero
);
178 #ifdef SNDCTL_DSP_HALT
179 if (enable_bits
== 0)
180 if (ioctl(u
->fd
, SNDCTL_DSP_HALT
, NULL
) < 0)
181 pa_log_warn("SNDCTL_DSP_HALT: %s", pa_cstrerror(errno
));
184 if (ioctl(u
->fd
, SNDCTL_DSP_SETTRIGGER
, &enable_bits
) < 0)
185 pa_log_warn("SNDCTL_DSP_SETTRIGGER: %s", pa_cstrerror(errno
));
187 if (u
->sink
&& !(enable_bits
& PCM_ENABLE_OUTPUT
)) {
188 pa_log_debug("clearing playback buffer");
189 pa_silence_memory(u
->out_mmap
, u
->out_hwbuf_size
, &u
->sink
->sample_spec
);
195 if (ioctl(u
->fd
, SNDCTL_DSP_POST
, NULL
) < 0)
196 pa_log_warn("SNDCTL_DSP_POST: %s", pa_cstrerror(errno
));
200 * Some crappy drivers do not start the recording until we
201 * read something. Without this snippet, poll will never
202 * register the fd as ready.
205 if (u
->source
&& PA_SOURCE_OPENED(u
->source
->thread_info
.state
)) {
206 uint8_t *buf
= pa_xnew(uint8_t, u
->in_fragment_size
);
207 pa_read(u
->fd
, buf
, u
->in_fragment_size
, NULL
);
214 static void mmap_fill_memblocks(struct userdata
*u
, unsigned n
) {
216 pa_assert(u
->out_mmap_memblocks
);
218 /* pa_log("Mmmap writing %u blocks", n); */
223 if (u
->out_mmap_memblocks
[u
->out_mmap_current
])
224 pa_memblock_unref_fixed(u
->out_mmap_memblocks
[u
->out_mmap_current
]);
226 chunk
.memblock
= u
->out_mmap_memblocks
[u
->out_mmap_current
] =
227 pa_memblock_new_fixed(
229 (uint8_t*) u
->out_mmap
+ u
->out_fragment_size
* u
->out_mmap_current
,
230 u
->out_fragment_size
,
233 chunk
.length
= pa_memblock_get_length(chunk
.memblock
);
236 pa_sink_render_into_full(u
->sink
, &chunk
);
238 u
->out_mmap_current
++;
239 while (u
->out_mmap_current
>= u
->out_nfrags
)
240 u
->out_mmap_current
-= u
->out_nfrags
;
246 static int mmap_write(struct userdata
*u
) {
247 struct count_info info
;
252 /* pa_log("Mmmap writing..."); */
254 if (ioctl(u
->fd
, SNDCTL_DSP_GETOPTR
, &info
) < 0) {
255 pa_log("SNDCTL_DSP_GETOPTR: %s", pa_cstrerror(errno
));
259 info
.blocks
+= u
->out_mmap_saved_nfrags
;
260 u
->out_mmap_saved_nfrags
= 0;
263 mmap_fill_memblocks(u
, info
.blocks
);
268 static void mmap_post_memblocks(struct userdata
*u
, unsigned n
) {
270 pa_assert(u
->in_mmap_memblocks
);
272 /* pa_log("Mmmap reading %u blocks", n); */
277 if (!u
->in_mmap_memblocks
[u
->in_mmap_current
]) {
279 chunk
.memblock
= u
->in_mmap_memblocks
[u
->in_mmap_current
] =
280 pa_memblock_new_fixed(
282 (uint8_t*) u
->in_mmap
+ u
->in_fragment_size
*u
->in_mmap_current
,
286 chunk
.length
= pa_memblock_get_length(chunk
.memblock
);
289 pa_source_post(u
->source
, &chunk
);
292 u
->in_mmap_current
++;
293 while (u
->in_mmap_current
>= u
->in_nfrags
)
294 u
->in_mmap_current
-= u
->in_nfrags
;
300 static void mmap_clear_memblocks(struct userdata
*u
, unsigned n
) {
301 unsigned i
= u
->in_mmap_current
;
304 pa_assert(u
->in_mmap_memblocks
);
306 if (n
> u
->in_nfrags
)
310 if (u
->in_mmap_memblocks
[i
]) {
311 pa_memblock_unref_fixed(u
->in_mmap_memblocks
[i
]);
312 u
->in_mmap_memblocks
[i
] = NULL
;
316 while (i
>= u
->in_nfrags
)
323 static int mmap_read(struct userdata
*u
) {
324 struct count_info info
;
326 pa_assert(u
->source
);
328 /* pa_log("Mmmap reading..."); */
330 if (ioctl(u
->fd
, SNDCTL_DSP_GETIPTR
, &info
) < 0) {
331 pa_log("SNDCTL_DSP_GETIPTR: %s", pa_cstrerror(errno
));
335 /* pa_log("... %i", info.blocks); */
337 info
.blocks
+= u
->in_mmap_saved_nfrags
;
338 u
->in_mmap_saved_nfrags
= 0;
340 if (info
.blocks
> 0) {
341 mmap_post_memblocks(u
, info
.blocks
);
342 mmap_clear_memblocks(u
, u
->in_nfrags
/2);
348 static pa_usec_t
mmap_sink_get_latency(struct userdata
*u
) {
349 struct count_info info
;
354 if (ioctl(u
->fd
, SNDCTL_DSP_GETOPTR
, &info
) < 0) {
355 pa_log("SNDCTL_DSP_GETOPTR: %s", pa_cstrerror(errno
));
359 u
->out_mmap_saved_nfrags
+= info
.blocks
;
361 bpos
= ((u
->out_mmap_current
+ u
->out_mmap_saved_nfrags
) * u
->out_fragment_size
) % u
->out_hwbuf_size
;
363 if (bpos
<= (size_t) info
.ptr
)
364 n
= u
->out_hwbuf_size
- (info
.ptr
- bpos
);
368 /* 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); */
370 return pa_bytes_to_usec(n
, &u
->sink
->sample_spec
);
373 static pa_usec_t
mmap_source_get_latency(struct userdata
*u
) {
374 struct count_info info
;
379 if (ioctl(u
->fd
, SNDCTL_DSP_GETIPTR
, &info
) < 0) {
380 pa_log("SNDCTL_DSP_GETIPTR: %s", pa_cstrerror(errno
));
384 u
->in_mmap_saved_nfrags
+= info
.blocks
;
385 bpos
= ((u
->in_mmap_current
+ u
->in_mmap_saved_nfrags
) * u
->in_fragment_size
) % u
->in_hwbuf_size
;
387 if (bpos
<= (size_t) info
.ptr
)
390 n
= u
->in_hwbuf_size
- bpos
+ info
.ptr
;
392 /* 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); */
394 return pa_bytes_to_usec(n
, &u
->source
->sample_spec
);
397 static pa_usec_t
io_sink_get_latency(struct userdata
*u
) {
402 if (u
->use_getodelay
) {
405 if (ioctl(u
->fd
, SNDCTL_DSP_GETODELAY
, &arg
) < 0) {
406 pa_log_info("Device doesn't support SNDCTL_DSP_GETODELAY: %s", pa_cstrerror(errno
));
407 u
->use_getodelay
= 0;
409 r
= pa_bytes_to_usec(arg
, &u
->sink
->sample_spec
);
413 if (!u
->use_getodelay
&& u
->use_getospace
) {
414 struct audio_buf_info info
;
416 if (ioctl(u
->fd
, SNDCTL_DSP_GETOSPACE
, &info
) < 0) {
417 pa_log_info("Device doesn't support SNDCTL_DSP_GETOSPACE: %s", pa_cstrerror(errno
));
418 u
->use_getospace
= 0;
420 r
= pa_bytes_to_usec(info
.bytes
, &u
->sink
->sample_spec
);
423 if (u
->memchunk
.memblock
)
424 r
+= pa_bytes_to_usec(u
->memchunk
.length
, &u
->sink
->sample_spec
);
430 static pa_usec_t
io_source_get_latency(struct userdata
*u
) {
435 if (u
->use_getispace
) {
436 struct audio_buf_info info
;
438 if (ioctl(u
->fd
, SNDCTL_DSP_GETISPACE
, &info
) < 0) {
439 pa_log_info("Device doesn't support SNDCTL_DSP_GETISPACE: %s", pa_cstrerror(errno
));
440 u
->use_getispace
= 0;
442 r
= pa_bytes_to_usec(info
.bytes
, &u
->source
->sample_spec
);
448 static void build_pollfd(struct userdata
*u
) {
449 struct pollfd
*pollfd
;
452 pa_assert(u
->fd
>= 0);
455 pa_rtpoll_item_free(u
->rtpoll_item
);
457 u
->rtpoll_item
= pa_rtpoll_item_new(u
->rtpoll
, PA_RTPOLL_NEVER
, 1);
458 pollfd
= pa_rtpoll_item_get_pollfd(u
->rtpoll_item
, NULL
);
464 static int suspend(struct userdata
*u
) {
466 pa_assert(u
->fd
>= 0);
468 pa_log_info("Suspending...");
470 if (u
->out_mmap_memblocks
) {
472 for (i
= 0; i
< u
->out_nfrags
; i
++)
473 if (u
->out_mmap_memblocks
[i
]) {
474 pa_memblock_unref_fixed(u
->out_mmap_memblocks
[i
]);
475 u
->out_mmap_memblocks
[i
] = NULL
;
479 if (u
->in_mmap_memblocks
) {
481 for (i
= 0; i
< u
->in_nfrags
; i
++)
482 if (u
->in_mmap_memblocks
[i
]) {
483 pa_memblock_unref_fixed(u
->in_mmap_memblocks
[i
]);
484 u
->in_mmap_memblocks
[i
] = NULL
;
488 if (u
->in_mmap
&& u
->in_mmap
!= MAP_FAILED
) {
489 munmap(u
->in_mmap
, u
->in_hwbuf_size
);
493 if (u
->out_mmap
&& u
->out_mmap
!= MAP_FAILED
) {
494 munmap(u
->out_mmap
, u
->out_hwbuf_size
);
499 ioctl(u
->fd
, SNDCTL_DSP_SYNC
, NULL
);
503 if (u
->rtpoll_item
) {
504 pa_rtpoll_item_free(u
->rtpoll_item
);
505 u
->rtpoll_item
= NULL
;
508 pa_log_info("Device suspended...");
513 static int unsuspend(struct userdata
*u
) {
515 pa_sample_spec ss
, *ss_original
;
516 int frag_size
, in_frag_size
, out_frag_size
;
517 int in_nfrags
, out_nfrags
;
518 struct audio_buf_info info
;
521 pa_assert(u
->fd
< 0);
525 pa_log_info("Trying resume...");
527 if ((u
->fd
= pa_oss_open(u
->device_name
, &m
, NULL
)) < 0) {
528 pa_log_warn("Resume failed, device busy (%s)", pa_cstrerror(errno
));
532 pa_log_warn("Resume failed, couldn't open device with original access mode.");
536 if (u
->nfrags
>= 2 && u
->frag_size
>= 1)
537 if (pa_oss_set_fragments(u
->fd
, u
->nfrags
, u
->frag_size
) < 0) {
538 pa_log_warn("Resume failed, couldn't set original fragment settings.");
542 ss
= *(ss_original
= u
->sink
? &u
->sink
->sample_spec
: &u
->source
->sample_spec
);
543 if (pa_oss_auto_format(u
->fd
, &ss
) < 0 || !pa_sample_spec_equal(&ss
, ss_original
)) {
544 pa_log_warn("Resume failed, couldn't set original sample format settings.");
548 if (ioctl(u
->fd
, SNDCTL_DSP_GETBLKSIZE
, &frag_size
) < 0) {
549 pa_log_warn("SNDCTL_DSP_GETBLKSIZE: %s", pa_cstrerror(errno
));
553 in_frag_size
= out_frag_size
= frag_size
;
554 in_nfrags
= out_nfrags
= u
->nfrags
;
556 if (ioctl(u
->fd
, SNDCTL_DSP_GETISPACE
, &info
) >= 0) {
557 in_frag_size
= info
.fragsize
;
558 in_nfrags
= info
.fragstotal
;
561 if (ioctl(u
->fd
, SNDCTL_DSP_GETOSPACE
, &info
) >= 0) {
562 out_frag_size
= info
.fragsize
;
563 out_nfrags
= info
.fragstotal
;
566 if ((u
->source
&& (in_frag_size
!= (int) u
->in_fragment_size
|| in_nfrags
!= (int) u
->in_nfrags
)) ||
567 (u
->sink
&& (out_frag_size
!= (int) u
->out_fragment_size
|| out_nfrags
!= (int) u
->out_nfrags
))) {
568 pa_log_warn("Resume failed, input fragment settings don't match.");
574 if ((u
->in_mmap
= mmap(NULL
, u
->in_hwbuf_size
, PROT_READ
, MAP_SHARED
, u
->fd
, 0)) == MAP_FAILED
) {
575 pa_log("Resume failed, mmap(): %s", pa_cstrerror(errno
));
581 if ((u
->out_mmap
= mmap(NULL
, u
->out_hwbuf_size
, PROT_WRITE
, MAP_SHARED
, u
->fd
, 0)) == MAP_FAILED
) {
582 pa_log("Resume failed, mmap(): %s", pa_cstrerror(errno
));
583 if (u
->in_mmap
&& u
->in_mmap
!= MAP_FAILED
) {
584 munmap(u
->in_mmap
, u
->in_hwbuf_size
);
591 pa_silence_memory(u
->out_mmap
, u
->out_hwbuf_size
, &ss
);
595 u
->out_mmap_current
= u
->in_mmap_current
= 0;
596 u
->out_mmap_saved_nfrags
= u
->in_mmap_saved_nfrags
= 0;
598 pa_assert(!u
->rtpoll_item
);
603 pa_sink_get_volume(u
->sink
);
605 pa_source_get_volume(u
->source
);
607 pa_log_info("Resumed successfully...");
617 static int sink_process_msg(pa_msgobject
*o
, int code
, void *data
, int64_t offset
, pa_memchunk
*chunk
) {
618 struct userdata
*u
= PA_SINK(o
)->userdata
;
620 pa_bool_t do_trigger
= FALSE
, quick
= TRUE
;
624 case PA_SINK_MESSAGE_GET_LATENCY
: {
629 r
= mmap_sink_get_latency(u
);
631 r
= io_sink_get_latency(u
);
634 *((pa_usec_t
*) data
) = r
;
639 case PA_SINK_MESSAGE_SET_STATE
:
641 switch ((pa_sink_state_t
) PA_PTR_TO_UINT(data
)) {
643 case PA_SINK_SUSPENDED
:
644 pa_assert(PA_SINK_OPENED(u
->sink
->thread_info
.state
));
646 if (!u
->source
|| u
->source_suspended
) {
653 u
->sink_suspended
= TRUE
;
657 case PA_SINK_RUNNING
:
659 if (u
->sink
->thread_info
.state
== PA_SINK_INIT
) {
661 quick
= u
->source
&& PA_SOURCE_OPENED(u
->source
->thread_info
.state
);
664 if (u
->sink
->thread_info
.state
== PA_SINK_SUSPENDED
) {
666 if (!u
->source
|| u
->source_suspended
) {
667 if (unsuspend(u
) < 0)
674 u
->out_mmap_current
= 0;
675 u
->out_mmap_saved_nfrags
= 0;
677 u
->sink_suspended
= FALSE
;
682 case PA_SINK_UNLINKED
:
691 ret
= pa_sink_process_msg(o
, code
, data
, offset
, chunk
);
699 static int source_process_msg(pa_msgobject
*o
, int code
, void *data
, int64_t offset
, pa_memchunk
*chunk
) {
700 struct userdata
*u
= PA_SOURCE(o
)->userdata
;
702 int do_trigger
= FALSE
, quick
= TRUE
;
706 case PA_SOURCE_MESSAGE_GET_LATENCY
: {
711 r
= mmap_source_get_latency(u
);
713 r
= io_source_get_latency(u
);
716 *((pa_usec_t
*) data
) = r
;
720 case PA_SOURCE_MESSAGE_SET_STATE
:
722 switch ((pa_source_state_t
) PA_PTR_TO_UINT(data
)) {
723 case PA_SOURCE_SUSPENDED
:
724 pa_assert(PA_SOURCE_OPENED(u
->source
->thread_info
.state
));
726 if (!u
->sink
|| u
->sink_suspended
) {
733 u
->source_suspended
= TRUE
;
737 case PA_SOURCE_RUNNING
:
739 if (u
->source
->thread_info
.state
== PA_SOURCE_INIT
) {
741 quick
= u
->sink
&& PA_SINK_OPENED(u
->sink
->thread_info
.state
);
744 if (u
->source
->thread_info
.state
== PA_SOURCE_SUSPENDED
) {
746 if (!u
->sink
|| u
->sink_suspended
) {
747 if (unsuspend(u
) < 0)
754 u
->in_mmap_current
= 0;
755 u
->in_mmap_saved_nfrags
= 0;
757 u
->source_suspended
= FALSE
;
761 case PA_SOURCE_UNLINKED
:
770 ret
= pa_source_process_msg(o
, code
, data
, offset
, chunk
);
778 static int sink_get_volume(pa_sink
*s
) {
782 pa_assert_se(u
= s
->userdata
);
784 pa_assert(u
->mixer_devmask
& (SOUND_MASK_VOLUME
|SOUND_MASK_PCM
));
786 if (u
->mixer_devmask
& SOUND_MASK_VOLUME
)
787 if ((r
= pa_oss_get_volume(u
->mixer_fd
, SOUND_MIXER_READ_VOLUME
, &s
->sample_spec
, &s
->volume
)) >= 0)
790 if (u
->mixer_devmask
& SOUND_MASK_PCM
)
791 if ((r
= pa_oss_get_volume(u
->mixer_fd
, SOUND_MIXER_READ_PCM
, &s
->sample_spec
, &s
->volume
)) >= 0)
794 pa_log_info("Device doesn't support reading mixer settings: %s", pa_cstrerror(errno
));
798 static int sink_set_volume(pa_sink
*s
) {
802 pa_assert_se(u
= s
->userdata
);
804 pa_assert(u
->mixer_devmask
& (SOUND_MASK_VOLUME
|SOUND_MASK_PCM
));
806 if (u
->mixer_devmask
& SOUND_MASK_VOLUME
)
807 if ((r
= pa_oss_set_volume(u
->mixer_fd
, SOUND_MIXER_WRITE_VOLUME
, &s
->sample_spec
, &s
->volume
)) >= 0)
810 if (u
->mixer_devmask
& SOUND_MASK_PCM
)
811 if ((r
= pa_oss_get_volume(u
->mixer_fd
, SOUND_MIXER_WRITE_PCM
, &s
->sample_spec
, &s
->volume
)) >= 0)
814 pa_log_info("Device doesn't support writing mixer settings: %s", pa_cstrerror(errno
));
818 static int source_get_volume(pa_source
*s
) {
822 pa_assert_se(u
= s
->userdata
);
824 pa_assert(u
->mixer_devmask
& (SOUND_MASK_IGAIN
|SOUND_MASK_RECLEV
));
826 if (u
->mixer_devmask
& SOUND_MASK_IGAIN
)
827 if ((r
= pa_oss_get_volume(u
->mixer_fd
, SOUND_MIXER_READ_IGAIN
, &s
->sample_spec
, &s
->volume
)) >= 0)
830 if (u
->mixer_devmask
& SOUND_MASK_RECLEV
)
831 if ((r
= pa_oss_get_volume(u
->mixer_fd
, SOUND_MIXER_READ_RECLEV
, &s
->sample_spec
, &s
->volume
)) >= 0)
834 pa_log_info("Device doesn't support reading mixer settings: %s", pa_cstrerror(errno
));
838 static int source_set_volume(pa_source
*s
) {
842 pa_assert_se(u
= s
->userdata
);
844 pa_assert(u
->mixer_devmask
& (SOUND_MASK_IGAIN
|SOUND_MASK_RECLEV
));
846 if (u
->mixer_devmask
& SOUND_MASK_IGAIN
)
847 if ((r
= pa_oss_set_volume(u
->mixer_fd
, SOUND_MIXER_WRITE_IGAIN
, &s
->sample_spec
, &s
->volume
)) >= 0)
850 if (u
->mixer_devmask
& SOUND_MASK_RECLEV
)
851 if ((r
= pa_oss_get_volume(u
->mixer_fd
, SOUND_MIXER_WRITE_RECLEV
, &s
->sample_spec
, &s
->volume
)) >= 0)
854 pa_log_info("Device doesn't support writing mixer settings: %s", pa_cstrerror(errno
));
858 static void thread_func(void *userdata
) {
859 struct userdata
*u
= userdata
;
860 int write_type
= 0, read_type
= 0;
861 unsigned short revents
= 0;
865 pa_log_debug("Thread starting up");
867 if (u
->core
->realtime_scheduling
)
868 pa_make_realtime(u
->core
->realtime_priority
);
870 pa_thread_mq_install(&u
->thread_mq
);
871 pa_rtpoll_install(u
->rtpoll
);
876 /* pa_log("loop"); */
878 /* Render some data and write it to the dsp */
880 if (u
->sink
&& PA_SINK_OPENED(u
->sink
->thread_info
.state
) && ((revents
& POLLOUT
) || u
->use_mmap
|| u
->use_getospace
)) {
884 if ((ret
= mmap_write(u
)) < 0)
894 pa_bool_t loop
= FALSE
, work_done
= FALSE
;
896 l
= u
->out_fragment_size
;
898 if (u
->use_getospace
) {
901 if (ioctl(u
->fd
, SNDCTL_DSP_GETOSPACE
, &info
) < 0) {
902 pa_log_info("Device doesn't support SNDCTL_DSP_GETOSPACE: %s", pa_cstrerror(errno
));
903 u
->use_getospace
= FALSE
;
907 /* We loop only if GETOSPACE worked and we
908 * actually *know* that we can write more than
909 * one fragment at a time */
914 /* Round down to multiples of the fragment size,
915 * because OSS needs that (at least some versions
917 l
= (l
/u
->out_fragment_size
) * u
->out_fragment_size
;
919 /* Hmm, so poll() signalled us that we can read
920 * something, but GETOSPACE told us there was nothing?
921 * Hmm, make the best of it, try to read some data, to
922 * avoid spinning forever. */
923 if (l
<= 0 && (revents
& POLLOUT
)) {
924 l
= u
->out_fragment_size
;
932 if (u
->memchunk
.length
<= 0)
933 pa_sink_render(u
->sink
, l
, &u
->memchunk
);
935 pa_assert(u
->memchunk
.length
> 0);
937 p
= pa_memblock_acquire(u
->memchunk
.memblock
);
938 t
= pa_write(u
->fd
, (uint8_t*) p
+ u
->memchunk
.index
, u
->memchunk
.length
, &write_type
);
939 pa_memblock_release(u
->memchunk
.memblock
);
941 /* pa_log("wrote %i bytes of %u", t, l); */
950 else if (errno
== EAGAIN
) {
951 pa_log_debug("EAGAIN");
957 pa_log("Failed to write data to DSP: %s", pa_cstrerror(errno
));
963 u
->memchunk
.index
+= t
;
964 u
->memchunk
.length
-= t
;
966 if (u
->memchunk
.length
<= 0) {
967 pa_memblock_unref(u
->memchunk
.memblock
);
968 pa_memchunk_reset(&u
->memchunk
);
986 /* Try to read some data and pass it on to the source driver. */
988 if (u
->source
&& PA_SOURCE_OPENED(u
->source
->thread_info
.state
) && ((revents
& POLLIN
) || u
->use_mmap
|| u
->use_getispace
)) {
992 if ((ret
= mmap_read(u
)) < 0)
1004 pa_memchunk memchunk
;
1005 pa_bool_t loop
= FALSE
, work_done
= FALSE
;
1007 l
= u
->in_fragment_size
;
1009 if (u
->use_getispace
) {
1010 audio_buf_info info
;
1012 if (ioctl(u
->fd
, SNDCTL_DSP_GETISPACE
, &info
) < 0) {
1013 pa_log_info("Device doesn't support SNDCTL_DSP_GETISPACE: %s", pa_cstrerror(errno
));
1014 u
->use_getispace
= FALSE
;
1021 l
= (l
/u
->in_fragment_size
) * u
->in_fragment_size
;
1023 if (l
<= 0 && (revents
& POLLIN
)) {
1024 l
= u
->in_fragment_size
;
1033 memchunk
.memblock
= pa_memblock_new(u
->core
->mempool
, (size_t) -1);
1035 k
= pa_memblock_get_length(memchunk
.memblock
);
1040 k
= (k
/u
->frame_size
)*u
->frame_size
;
1042 p
= pa_memblock_acquire(memchunk
.memblock
);
1043 t
= pa_read(u
->fd
, p
, k
, &read_type
);
1044 pa_memblock_release(memchunk
.memblock
);
1046 pa_assert(t
!= 0); /* EOF cannot happen */
1048 /* pa_log("read %i bytes of %u", t, l); */
1051 pa_memblock_unref(memchunk
.memblock
);
1056 else if (errno
== EAGAIN
) {
1057 pa_log_debug("EAGAIN");
1063 pa_log("Failed to read data from DSP: %s", pa_cstrerror(errno
));
1069 memchunk
.length
= t
;
1071 pa_source_post(u
->source
, &memchunk
);
1072 pa_memblock_unref(memchunk
.memblock
);
1089 /* pa_log("loop2 revents=%i", revents); */
1091 if (u
->rtpoll_item
) {
1092 struct pollfd
*pollfd
;
1094 pa_assert(u
->fd
>= 0);
1096 pollfd
= pa_rtpoll_item_get_pollfd(u
->rtpoll_item
, NULL
);
1098 ((u
->source
&& PA_SOURCE_OPENED(u
->source
->thread_info
.state
)) ? POLLIN
: 0) |
1099 ((u
->sink
&& PA_SINK_OPENED(u
->sink
->thread_info
.state
)) ? POLLOUT
: 0);
1102 /* Hmm, nothing to do. Let's sleep */
1103 if ((ret
= pa_rtpoll_run(u
->rtpoll
, TRUE
)) < 0)
1109 if (u
->rtpoll_item
) {
1110 struct pollfd
*pollfd
;
1112 pollfd
= pa_rtpoll_item_get_pollfd(u
->rtpoll_item
, NULL
);
1114 if (pollfd
->revents
& ~(POLLOUT
|POLLIN
)) {
1115 pa_log("DSP shutdown.");
1119 revents
= pollfd
->revents
;
1125 /* If this was no regular exit from the loop we have to continue
1126 * processing messages until we received PA_MESSAGE_SHUTDOWN */
1127 pa_asyncmsgq_post(u
->thread_mq
.outq
, PA_MSGOBJECT(u
->core
), PA_CORE_MESSAGE_UNLOAD_MODULE
, u
->module
, 0, NULL
, NULL
);
1128 pa_asyncmsgq_wait_for(u
->thread_mq
.inq
, PA_MESSAGE_SHUTDOWN
);
1131 pa_log_debug("Thread shutting down");
1134 int pa__init(pa_module
*m
) {
1136 struct audio_buf_info info
;
1137 struct userdata
*u
= NULL
;
1140 int nfrags
, frag_size
;
1142 pa_bool_t record
= TRUE
, playback
= TRUE
, use_mmap
= TRUE
;
1145 pa_modargs
*ma
= NULL
;
1148 pa_bool_t namereg_fail
;
1152 if (!(ma
= pa_modargs_new(m
->argument
, valid_modargs
))) {
1153 pa_log("Failed to parse module arguments.");
1157 if (pa_modargs_get_value_boolean(ma
, "record", &record
) < 0 || pa_modargs_get_value_boolean(ma
, "playback", &playback
) < 0) {
1158 pa_log("record= and playback= expect boolean argument.");
1162 if (!playback
&& !record
) {
1163 pa_log("Neither playback nor record enabled for device.");
1167 mode
= (playback
&& record
) ? O_RDWR
: (playback
? O_WRONLY
: (record
? O_RDONLY
: 0));
1169 ss
= m
->core
->default_sample_spec
;
1170 if (pa_modargs_get_sample_spec_and_channel_map(ma
, &ss
, &map
, PA_CHANNEL_MAP_OSS
) < 0) {
1171 pa_log("Failed to parse sample specification or channel map");
1175 nfrags
= m
->core
->default_n_fragments
;
1176 frag_size
= pa_usec_to_bytes(m
->core
->default_fragment_size_msec
*1000, &ss
);
1178 frag_size
= pa_frame_size(&ss
);
1180 if (pa_modargs_get_value_s32(ma
, "fragments", &nfrags
) < 0 || pa_modargs_get_value_s32(ma
, "fragment_size", &frag_size
) < 0) {
1181 pa_log("Failed to parse fragments arguments");
1185 if (pa_modargs_get_value_boolean(ma
, "mmap", &use_mmap
) < 0) {
1186 pa_log("Failed to parse mmap argument.");
1190 if ((fd
= pa_oss_open(dev
= pa_modargs_get_value(ma
, "device", DEFAULT_DEVICE
), &mode
, &caps
)) < 0)
1193 if (use_mmap
&& (!(caps
& DSP_CAP_MMAP
) || !(caps
& DSP_CAP_TRIGGER
))) {
1194 pa_log_info("OSS device not mmap capable, falling back to UNIX read/write mode.");
1198 if (use_mmap
&& mode
== O_WRONLY
) {
1199 pa_log_info("Device opened for playback only, cannot do memory mapping, falling back to UNIX write() mode.");
1203 if (pa_oss_get_hw_description(dev
, hwdesc
, sizeof(hwdesc
)) >= 0)
1204 pa_log_info("Hardware name is '%s'.", hwdesc
);
1208 pa_log_info("Device opened in %s mode.", mode
== O_WRONLY
? "O_WRONLY" : (mode
== O_RDONLY
? "O_RDONLY" : "O_RDWR"));
1210 if (nfrags
>= 2 && frag_size
>= 1)
1211 if (pa_oss_set_fragments(fd
, nfrags
, frag_size
) < 0)
1214 if (pa_oss_auto_format(fd
, &ss
) < 0)
1217 if (ioctl(fd
, SNDCTL_DSP_GETBLKSIZE
, &frag_size
) < 0) {
1218 pa_log("SNDCTL_DSP_GETBLKSIZE: %s", pa_cstrerror(errno
));
1221 pa_assert(frag_size
> 0);
1223 u
= pa_xnew0(struct userdata
, 1);
1229 u
->use_getospace
= u
->use_getispace
= 1;
1230 u
->use_getodelay
= 1;
1232 u
->frame_size
= pa_frame_size(&ss
);
1233 u
->device_name
= pa_xstrdup(dev
);
1234 u
->in_nfrags
= u
->out_nfrags
= u
->nfrags
= nfrags
;
1235 u
->out_fragment_size
= u
->in_fragment_size
= u
->frag_size
= frag_size
;
1236 u
->use_mmap
= use_mmap
;
1237 pa_thread_mq_init(&u
->thread_mq
, m
->core
->mainloop
);
1238 u
->rtpoll
= pa_rtpoll_new();
1239 pa_rtpoll_item_new_asyncmsgq(u
->rtpoll
, PA_RTPOLL_EARLY
, u
->thread_mq
.inq
);
1240 u
->rtpoll_item
= NULL
;
1243 if (ioctl(fd
, SNDCTL_DSP_GETISPACE
, &info
) >= 0) {
1244 pa_log_info("Input -- %u fragments of size %u.", info
.fragstotal
, info
.fragsize
);
1245 u
->in_fragment_size
= info
.fragsize
;
1246 u
->in_nfrags
= info
.fragstotal
;
1247 u
->use_getispace
= 1;
1250 if (ioctl(fd
, SNDCTL_DSP_GETOSPACE
, &info
) >= 0) {
1251 pa_log_info("Output -- %u fragments of size %u.", info
.fragstotal
, info
.fragsize
);
1252 u
->out_fragment_size
= info
.fragsize
;
1253 u
->out_nfrags
= info
.fragstotal
;
1254 u
->use_getospace
= 1;
1257 u
->in_hwbuf_size
= u
->in_nfrags
* u
->in_fragment_size
;
1258 u
->out_hwbuf_size
= u
->out_nfrags
* u
->out_fragment_size
;
1260 if (mode
!= O_WRONLY
) {
1261 pa_source_new_data data
;
1262 char *name_buf
= NULL
;
1265 if ((u
->in_mmap
= mmap(NULL
, u
->in_hwbuf_size
, PROT_READ
, MAP_SHARED
, fd
, 0)) == MAP_FAILED
) {
1266 pa_log_warn("mmap(PROT_READ) failed, reverting to non-mmap mode: %s", pa_cstrerror(errno
));
1267 use_mmap
= u
->use_mmap
= 0;
1270 pa_log_debug("Successfully mmap()ed input buffer.");
1273 if ((name
= pa_modargs_get_value(ma
, "source_name", NULL
)))
1274 namereg_fail
= TRUE
;
1276 name
= name_buf
= pa_sprintf_malloc("oss_input.%s", pa_path_get_filename(dev
));
1277 namereg_fail
= FALSE
;
1280 pa_source_new_data_init(&data
);
1281 data
.driver
= __FILE__
;
1283 pa_source_new_data_set_name(&data
, name
);
1284 data
.namereg_fail
= namereg_fail
;
1285 pa_source_new_data_set_sample_spec(&data
, &ss
);
1286 pa_source_new_data_set_channel_map(&data
, &map
);
1287 pa_proplist_sets(data
.proplist
, PA_PROP_DEVICE_STRING
, dev
);
1288 pa_proplist_sets(data
.proplist
, PA_PROP_DEVICE_API
, "oss");
1289 pa_proplist_sets(data
.proplist
, PA_PROP_DEVICE_DESCRIPTION
, hwdesc
[0] ? hwdesc
: dev
);
1290 pa_proplist_sets(data
.proplist
, PA_PROP_DEVICE_ACCESS_MODE
, use_mmap
? "mmap" : "serial");
1292 u
->source
= pa_source_new(m
->core
, &data
, PA_SOURCE_HARDWARE
|PA_SOURCE_LATENCY
);
1293 pa_source_new_data_done(&data
);
1297 pa_log("Failed to create source object");
1301 u
->source
->parent
.process_msg
= source_process_msg
;
1302 u
->source
->userdata
= u
;
1304 pa_source_set_asyncmsgq(u
->source
, u
->thread_mq
.inq
);
1305 pa_source_set_rtpoll(u
->source
, u
->rtpoll
);
1306 u
->source
->refresh_volume
= TRUE
;
1309 u
->in_mmap_memblocks
= pa_xnew0(pa_memblock
*, u
->in_nfrags
);
1312 if (mode
!= O_RDONLY
) {
1313 pa_sink_new_data data
;
1314 char *name_buf
= NULL
;
1317 if ((u
->out_mmap
= mmap(NULL
, u
->out_hwbuf_size
, PROT_WRITE
, MAP_SHARED
, fd
, 0)) == MAP_FAILED
) {
1318 if (mode
== O_RDWR
) {
1319 pa_log_debug("mmap() failed for input. Changing to O_WRONLY mode.");
1323 pa_log_warn("mmap(PROT_WRITE) failed, reverting to non-mmap mode: %s", pa_cstrerror(errno
));
1324 u
->use_mmap
= (use_mmap
= FALSE
);
1328 pa_log_debug("Successfully mmap()ed output buffer.");
1329 pa_silence_memory(u
->out_mmap
, u
->out_hwbuf_size
, &ss
);
1333 if ((name
= pa_modargs_get_value(ma
, "sink_name", NULL
)))
1336 name
= name_buf
= pa_sprintf_malloc("oss_output.%s", pa_path_get_filename(dev
));
1340 pa_sink_new_data_init(&data
);
1341 data
.driver
= __FILE__
;
1343 pa_sink_new_data_set_name(&data
, name
);
1344 data
.namereg_fail
= namereg_fail
;
1345 pa_sink_new_data_set_sample_spec(&data
, &ss
);
1346 pa_sink_new_data_set_channel_map(&data
, &map
);
1347 pa_proplist_sets(data
.proplist
, PA_PROP_DEVICE_STRING
, dev
);
1348 pa_proplist_sets(data
.proplist
, PA_PROP_DEVICE_API
, "oss");
1349 pa_proplist_sets(data
.proplist
, PA_PROP_DEVICE_DESCRIPTION
, hwdesc
[0] ? hwdesc
: dev
);
1350 pa_proplist_sets(data
.proplist
, PA_PROP_DEVICE_ACCESS_MODE
, use_mmap
? "mmap" : "serial");
1352 u
->sink
= pa_sink_new(m
->core
, &data
, PA_SINK_HARDWARE
|PA_SINK_LATENCY
);
1353 pa_sink_new_data_done(&data
);
1357 pa_log("Failed to create sink object");
1361 u
->sink
->parent
.process_msg
= sink_process_msg
;
1362 u
->sink
->userdata
= u
;
1364 pa_sink_set_asyncmsgq(u
->sink
, u
->thread_mq
.inq
);
1365 pa_sink_set_rtpoll(u
->sink
, u
->rtpoll
);
1366 u
->sink
->refresh_volume
= TRUE
;
1369 u
->out_mmap_memblocks
= pa_xnew0(pa_memblock
*, u
->out_nfrags
);
1372 if ((u
->mixer_fd
= pa_oss_open_mixer_for_device(u
->device_name
)) >= 0) {
1374 u
->mixer_devmask
= 0;
1376 if (ioctl(fd
, SOUND_MIXER_READ_DEVMASK
, &u
->mixer_devmask
) < 0)
1377 pa_log_warn("SOUND_MIXER_READ_DEVMASK failed: %s", pa_cstrerror(errno
));
1380 if (u
->sink
&& (u
->mixer_devmask
& (SOUND_MASK_VOLUME
|SOUND_MASK_PCM
))) {
1381 pa_log_debug("Found hardware mixer track for playback.");
1382 u
->sink
->flags
|= PA_SINK_HW_VOLUME_CTRL
;
1383 u
->sink
->get_volume
= sink_get_volume
;
1384 u
->sink
->set_volume
= sink_set_volume
;
1388 if (u
->source
&& (u
->mixer_devmask
& (SOUND_MASK_RECLEV
|SOUND_MASK_IGAIN
))) {
1389 pa_log_debug("Found hardware mixer track for recording.");
1390 u
->source
->flags
|= PA_SOURCE_HW_VOLUME_CTRL
;
1391 u
->source
->get_volume
= source_get_volume
;
1392 u
->source
->set_volume
= source_set_volume
;
1398 pa_close(u
->mixer_fd
);
1405 pa_assert(u
->source
|| u
->sink
);
1407 pa_memchunk_reset(&u
->memchunk
);
1409 if (!(u
->thread
= pa_thread_new(thread_func
, u
))) {
1410 pa_log("Failed to create thread.");
1414 /* Read mixer settings */
1415 if (u
->sink
&& u
->sink
->get_volume
)
1416 sink_get_volume(u
->sink
);
1417 if (u
->source
&& u
->source
->get_volume
)
1418 source_get_volume(u
->source
);
1421 pa_sink_put(u
->sink
);
1423 pa_source_put(u
->source
);
1425 pa_modargs_free(ma
);
1437 pa_modargs_free(ma
);
1442 void pa__done(pa_module
*m
) {
1447 if (!(u
= m
->userdata
))
1451 pa_sink_unlink(u
->sink
);
1454 pa_source_unlink(u
->source
);
1457 pa_asyncmsgq_send(u
->thread_mq
.inq
, NULL
, PA_MESSAGE_SHUTDOWN
, NULL
, 0, NULL
);
1458 pa_thread_free(u
->thread
);
1461 pa_thread_mq_done(&u
->thread_mq
);
1464 pa_sink_unref(u
->sink
);
1467 pa_source_unref(u
->source
);
1469 if (u
->memchunk
.memblock
)
1470 pa_memblock_unref(u
->memchunk
.memblock
);
1473 pa_rtpoll_item_free(u
->rtpoll_item
);
1476 pa_rtpoll_free(u
->rtpoll
);
1478 if (u
->out_mmap_memblocks
) {
1480 for (i
= 0; i
< u
->out_nfrags
; i
++)
1481 if (u
->out_mmap_memblocks
[i
])
1482 pa_memblock_unref_fixed(u
->out_mmap_memblocks
[i
]);
1483 pa_xfree(u
->out_mmap_memblocks
);
1486 if (u
->in_mmap_memblocks
) {
1488 for (i
= 0; i
< u
->in_nfrags
; i
++)
1489 if (u
->in_mmap_memblocks
[i
])
1490 pa_memblock_unref_fixed(u
->in_mmap_memblocks
[i
]);
1491 pa_xfree(u
->in_mmap_memblocks
);
1494 if (u
->in_mmap
&& u
->in_mmap
!= MAP_FAILED
)
1495 munmap(u
->in_mmap
, u
->in_hwbuf_size
);
1497 if (u
->out_mmap
&& u
->out_mmap
!= MAP_FAILED
)
1498 munmap(u
->out_mmap
, u
->out_hwbuf_size
);
1503 if (u
->mixer_fd
>= 0)
1504 pa_close(u
->mixer_fd
);
1506 pa_xfree(u
->device_name
);