2 This file is part of PulseAudio.
4 Copyright 2004-2008 Lennart Poettering
5 Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
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.
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.
17 You should have received a copy of the GNU Lesser General Public License
18 along with PulseAudio; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
29 #include <asoundlib.h>
31 #ifdef HAVE_VALGRIND_MEMCHECK_H
32 #include <valgrind/memcheck.h>
35 #include <pulse/i18n.h>
36 #include <pulse/rtclock.h>
37 #include <pulse/timeval.h>
38 #include <pulse/util.h>
39 #include <pulse/xmalloc.h>
41 #include <pulsecore/core.h>
42 #include <pulsecore/module.h>
43 #include <pulsecore/memchunk.h>
44 #include <pulsecore/sink.h>
45 #include <pulsecore/modargs.h>
46 #include <pulsecore/core-rtclock.h>
47 #include <pulsecore/core-util.h>
48 #include <pulsecore/sample-util.h>
49 #include <pulsecore/log.h>
50 #include <pulsecore/macro.h>
51 #include <pulsecore/thread.h>
52 #include <pulsecore/core-error.h>
53 #include <pulsecore/thread-mq.h>
54 #include <pulsecore/rtpoll.h>
55 #include <pulsecore/time-smoother.h>
57 #include <modules/reserve-wrap.h>
59 #include "alsa-util.h"
60 #include "alsa-sink.h"
62 /* #define DEBUG_TIMING */
64 #define DEFAULT_DEVICE "default"
66 #define DEFAULT_TSCHED_BUFFER_USEC (2*PA_USEC_PER_SEC) /* 2s -- Overall buffer size */
67 #define DEFAULT_TSCHED_WATERMARK_USEC (20*PA_USEC_PER_MSEC) /* 20ms -- Fill up when only this much is left in the buffer */
69 #define TSCHED_WATERMARK_INC_STEP_USEC (10*PA_USEC_PER_MSEC) /* 10ms -- On underrun, increase watermark by this */
70 #define TSCHED_WATERMARK_DEC_STEP_USEC (5*PA_USEC_PER_MSEC) /* 5ms -- When everything's great, decrease watermark by this */
71 #define TSCHED_WATERMARK_VERIFY_AFTER_USEC (20*PA_USEC_PER_SEC) /* 20s -- How long after a drop out recheck if things are good now */
72 #define TSCHED_WATERMARK_INC_THRESHOLD_USEC (0*PA_USEC_PER_MSEC) /* 0ms -- If the buffer level ever below this theshold, increase the watermark */
73 #define TSCHED_WATERMARK_DEC_THRESHOLD_USEC (100*PA_USEC_PER_MSEC) /* 100ms -- If the buffer level didn't drop below this theshold in the verification time, decrease the watermark */
75 /* Note that TSCHED_WATERMARK_INC_THRESHOLD_USEC == 0 means tht we
76 * will increase the watermark only if we hit a real underrun. */
78 #define TSCHED_MIN_SLEEP_USEC (10*PA_USEC_PER_MSEC) /* 10ms -- Sleep at least 10ms on each iteration */
79 #define TSCHED_MIN_WAKEUP_USEC (4*PA_USEC_PER_MSEC) /* 4ms -- Wakeup at least this long before the buffer runs empty*/
81 #define SMOOTHER_WINDOW_USEC (10*PA_USEC_PER_SEC) /* 10s -- smoother windows size */
82 #define SMOOTHER_ADJUST_USEC (1*PA_USEC_PER_SEC) /* 1s -- smoother adjust time */
84 #define SMOOTHER_MIN_INTERVAL (2*PA_USEC_PER_MSEC) /* 2ms -- min smoother update interval */
85 #define SMOOTHER_MAX_INTERVAL (200*PA_USEC_PER_MSEC) /* 200ms -- max smoother update interval */
87 #define VOLUME_ACCURACY (PA_VOLUME_NORM/100) /* don't require volume adjustments to be perfectly correct. don't necessarily extend granularity in software unless the differences get greater than this level */
89 #define DEFAULT_REWIND_SAFEGUARD_BYTES (256U) /* 1.33ms @48kHz, we'll never rewind less than this */
90 #define DEFAULT_REWIND_SAFEGUARD_USEC (1330) /* 1.33ms, depending on channels/rate/sample we may rewind more than 256 above */
98 pa_thread_mq thread_mq
;
101 snd_pcm_t
*pcm_handle
;
103 pa_alsa_fdlist
*mixer_fdl
;
104 pa_alsa_mixer_pdata
*mixer_pd
;
105 snd_mixer_t
*mixer_handle
;
106 pa_alsa_path_set
*mixer_path_set
;
107 pa_alsa_path
*mixer_path
;
109 pa_cvolume hardware_volume
;
121 watermark_inc_threshold
,
122 watermark_dec_threshold
,
125 pa_usec_t watermark_dec_not_before
;
127 pa_memchunk memchunk
;
129 char *device_name
; /* name of the PCM device */
130 char *control_device
; /* name of the control device */
132 pa_bool_t use_mmap
:1, use_tsched
:1;
134 pa_bool_t first
, after_rewind
;
136 pa_rtpoll_item
*alsa_rtpoll_item
;
138 snd_mixer_selem_channel_id_t mixer_map
[SND_MIXER_SCHN_LAST
];
140 pa_smoother
*smoother
;
141 uint64_t write_count
;
142 uint64_t since_start
;
143 pa_usec_t smoother_interval
;
144 pa_usec_t last_smoother_update
;
146 pa_reserve_wrapper
*reserve
;
147 pa_hook_slot
*reserve_slot
;
148 pa_reserve_monitor_wrapper
*monitor
;
149 pa_hook_slot
*monitor_slot
;
152 static void userdata_free(struct userdata
*u
);
154 static pa_hook_result_t
reserve_cb(pa_reserve_wrapper
*r
, void *forced
, struct userdata
*u
) {
158 if (pa_sink_suspend(u
->sink
, TRUE
, PA_SUSPEND_APPLICATION
) < 0)
159 return PA_HOOK_CANCEL
;
164 static void reserve_done(struct userdata
*u
) {
167 if (u
->reserve_slot
) {
168 pa_hook_slot_free(u
->reserve_slot
);
169 u
->reserve_slot
= NULL
;
173 pa_reserve_wrapper_unref(u
->reserve
);
178 static void reserve_update(struct userdata
*u
) {
179 const char *description
;
182 if (!u
->sink
|| !u
->reserve
)
185 if ((description
= pa_proplist_gets(u
->sink
->proplist
, PA_PROP_DEVICE_DESCRIPTION
)))
186 pa_reserve_wrapper_set_application_device_name(u
->reserve
, description
);
189 static int reserve_init(struct userdata
*u
, const char *dname
) {
198 if (pa_in_system_mode())
201 if (!(rname
= pa_alsa_get_reserve_name(dname
)))
204 /* We are resuming, try to lock the device */
205 u
->reserve
= pa_reserve_wrapper_get(u
->core
, rname
);
213 pa_assert(!u
->reserve_slot
);
214 u
->reserve_slot
= pa_hook_connect(pa_reserve_wrapper_hook(u
->reserve
), PA_HOOK_NORMAL
, (pa_hook_cb_t
) reserve_cb
, u
);
219 static pa_hook_result_t
monitor_cb(pa_reserve_monitor_wrapper
*w
, void* busy
, struct userdata
*u
) {
225 b
= PA_PTR_TO_UINT(busy
) && !u
->reserve
;
227 pa_sink_suspend(u
->sink
, b
, PA_SUSPEND_APPLICATION
);
231 static void monitor_done(struct userdata
*u
) {
234 if (u
->monitor_slot
) {
235 pa_hook_slot_free(u
->monitor_slot
);
236 u
->monitor_slot
= NULL
;
240 pa_reserve_monitor_wrapper_unref(u
->monitor
);
245 static int reserve_monitor_init(struct userdata
*u
, const char *dname
) {
251 if (pa_in_system_mode())
254 if (!(rname
= pa_alsa_get_reserve_name(dname
)))
257 u
->monitor
= pa_reserve_monitor_wrapper_get(u
->core
, rname
);
263 pa_assert(!u
->monitor_slot
);
264 u
->monitor_slot
= pa_hook_connect(pa_reserve_monitor_wrapper_hook(u
->monitor
), PA_HOOK_NORMAL
, (pa_hook_cb_t
) monitor_cb
, u
);
269 static void fix_min_sleep_wakeup(struct userdata
*u
) {
270 size_t max_use
, max_use_2
;
273 pa_assert(u
->use_tsched
);
275 max_use
= u
->hwbuf_size
- u
->hwbuf_unused
;
276 max_use_2
= pa_frame_align(max_use
/2, &u
->sink
->sample_spec
);
278 u
->min_sleep
= pa_usec_to_bytes(TSCHED_MIN_SLEEP_USEC
, &u
->sink
->sample_spec
);
279 u
->min_sleep
= PA_CLAMP(u
->min_sleep
, u
->frame_size
, max_use_2
);
281 u
->min_wakeup
= pa_usec_to_bytes(TSCHED_MIN_WAKEUP_USEC
, &u
->sink
->sample_spec
);
282 u
->min_wakeup
= PA_CLAMP(u
->min_wakeup
, u
->frame_size
, max_use_2
);
285 static void fix_tsched_watermark(struct userdata
*u
) {
288 pa_assert(u
->use_tsched
);
290 max_use
= u
->hwbuf_size
- u
->hwbuf_unused
;
292 if (u
->tsched_watermark
> max_use
- u
->min_sleep
)
293 u
->tsched_watermark
= max_use
- u
->min_sleep
;
295 if (u
->tsched_watermark
< u
->min_wakeup
)
296 u
->tsched_watermark
= u
->min_wakeup
;
299 static void increase_watermark(struct userdata
*u
) {
300 size_t old_watermark
;
301 pa_usec_t old_min_latency
, new_min_latency
;
304 pa_assert(u
->use_tsched
);
306 /* First, just try to increase the watermark */
307 old_watermark
= u
->tsched_watermark
;
308 u
->tsched_watermark
= PA_MIN(u
->tsched_watermark
* 2, u
->tsched_watermark
+ u
->watermark_inc_step
);
309 fix_tsched_watermark(u
);
311 if (old_watermark
!= u
->tsched_watermark
) {
312 pa_log_info("Increasing wakeup watermark to %0.2f ms",
313 (double) pa_bytes_to_usec(u
->tsched_watermark
, &u
->sink
->sample_spec
) / PA_USEC_PER_MSEC
);
317 /* Hmm, we cannot increase the watermark any further, hence let's raise the latency */
318 old_min_latency
= u
->sink
->thread_info
.min_latency
;
319 new_min_latency
= PA_MIN(old_min_latency
* 2, old_min_latency
+ TSCHED_WATERMARK_INC_STEP_USEC
);
320 new_min_latency
= PA_MIN(new_min_latency
, u
->sink
->thread_info
.max_latency
);
322 if (old_min_latency
!= new_min_latency
) {
323 pa_log_info("Increasing minimal latency to %0.2f ms",
324 (double) new_min_latency
/ PA_USEC_PER_MSEC
);
326 pa_sink_set_latency_range_within_thread(u
->sink
, new_min_latency
, u
->sink
->thread_info
.max_latency
);
329 /* When we reach this we're officialy fucked! */
332 static void decrease_watermark(struct userdata
*u
) {
333 size_t old_watermark
;
337 pa_assert(u
->use_tsched
);
339 now
= pa_rtclock_now();
341 if (u
->watermark_dec_not_before
<= 0)
344 if (u
->watermark_dec_not_before
> now
)
347 old_watermark
= u
->tsched_watermark
;
349 if (u
->tsched_watermark
< u
->watermark_dec_step
)
350 u
->tsched_watermark
= u
->tsched_watermark
/ 2;
352 u
->tsched_watermark
= PA_MAX(u
->tsched_watermark
/ 2, u
->tsched_watermark
- u
->watermark_dec_step
);
354 fix_tsched_watermark(u
);
356 if (old_watermark
!= u
->tsched_watermark
)
357 pa_log_info("Decreasing wakeup watermark to %0.2f ms",
358 (double) pa_bytes_to_usec(u
->tsched_watermark
, &u
->sink
->sample_spec
) / PA_USEC_PER_MSEC
);
360 /* We don't change the latency range*/
363 u
->watermark_dec_not_before
= now
+ TSCHED_WATERMARK_VERIFY_AFTER_USEC
;
366 static void hw_sleep_time(struct userdata
*u
, pa_usec_t
*sleep_usec
, pa_usec_t
*process_usec
) {
369 pa_assert(sleep_usec
);
370 pa_assert(process_usec
);
373 pa_assert(u
->use_tsched
);
375 usec
= pa_sink_get_requested_latency_within_thread(u
->sink
);
377 if (usec
== (pa_usec_t
) -1)
378 usec
= pa_bytes_to_usec(u
->hwbuf_size
, &u
->sink
->sample_spec
);
380 wm
= pa_bytes_to_usec(u
->tsched_watermark
, &u
->sink
->sample_spec
);
385 *sleep_usec
= usec
- wm
;
389 pa_log_debug("Buffer time: %lu ms; Sleep time: %lu ms; Process time: %lu ms",
390 (unsigned long) (usec
/ PA_USEC_PER_MSEC
),
391 (unsigned long) (*sleep_usec
/ PA_USEC_PER_MSEC
),
392 (unsigned long) (*process_usec
/ PA_USEC_PER_MSEC
));
396 static int try_recover(struct userdata
*u
, const char *call
, int err
) {
401 pa_log_debug("%s: %s", call
, pa_alsa_strerror(err
));
403 pa_assert(err
!= -EAGAIN
);
406 pa_log_debug("%s: Buffer underrun!", call
);
408 if (err
== -ESTRPIPE
)
409 pa_log_debug("%s: System suspended!", call
);
411 if ((err
= snd_pcm_recover(u
->pcm_handle
, err
, 1)) < 0) {
412 pa_log("%s: %s", call
, pa_alsa_strerror(err
));
421 static size_t check_left_to_play(struct userdata
*u
, size_t n_bytes
, pa_bool_t on_timeout
) {
423 pa_bool_t underrun
= FALSE
;
425 /* We use <= instead of < for this check here because an underrun
426 * only happens after the last sample was processed, not already when
427 * it is removed from the buffer. This is particularly important
428 * when block transfer is used. */
430 if (n_bytes
<= u
->hwbuf_size
)
431 left_to_play
= u
->hwbuf_size
- n_bytes
;
434 /* We got a dropout. What a mess! */
442 if (!u
->first
&& !u
->after_rewind
)
443 if (pa_log_ratelimit())
444 pa_log_info("Underrun!");
448 pa_log_debug("%0.2f ms left to play; inc threshold = %0.2f ms; dec threshold = %0.2f ms",
449 (double) pa_bytes_to_usec(left_to_play
, &u
->sink
->sample_spec
) / PA_USEC_PER_MSEC
,
450 (double) pa_bytes_to_usec(u
->watermark_inc_threshold
, &u
->sink
->sample_spec
) / PA_USEC_PER_MSEC
,
451 (double) pa_bytes_to_usec(u
->watermark_dec_threshold
, &u
->sink
->sample_spec
) / PA_USEC_PER_MSEC
);
455 pa_bool_t reset_not_before
= TRUE
;
457 if (!u
->first
&& !u
->after_rewind
) {
458 if (underrun
|| left_to_play
< u
->watermark_inc_threshold
)
459 increase_watermark(u
);
460 else if (left_to_play
> u
->watermark_dec_threshold
) {
461 reset_not_before
= FALSE
;
463 /* We decrease the watermark only if have actually
464 * been woken up by a timeout. If something else woke
465 * us up it's too easy to fulfill the deadlines... */
468 decrease_watermark(u
);
472 if (reset_not_before
)
473 u
->watermark_dec_not_before
= 0;
479 static int mmap_write(struct userdata
*u
, pa_usec_t
*sleep_usec
, pa_bool_t polled
, pa_bool_t on_timeout
) {
480 pa_bool_t work_done
= TRUE
;
481 pa_usec_t max_sleep_usec
= 0, process_usec
= 0;
486 pa_sink_assert_ref(u
->sink
);
489 hw_sleep_time(u
, &max_sleep_usec
, &process_usec
);
495 pa_bool_t after_avail
= TRUE
;
497 /* First we determine how many samples are missing to fill the
498 * buffer up to 100% */
500 if (PA_UNLIKELY((n
= pa_alsa_safe_avail(u
->pcm_handle
, u
->hwbuf_size
, &u
->sink
->sample_spec
)) < 0)) {
502 if ((r
= try_recover(u
, "snd_pcm_avail", (int) n
)) == 0)
508 n_bytes
= (size_t) n
* u
->frame_size
;
511 pa_log_debug("avail: %lu", (unsigned long) n_bytes
);
514 left_to_play
= check_left_to_play(u
, n_bytes
, on_timeout
);
519 /* We won't fill up the playback buffer before at least
520 * half the sleep time is over because otherwise we might
521 * ask for more data from the clients then they expect. We
522 * need to guarantee that clients only have to keep around
523 * a single hw buffer length. */
526 pa_bytes_to_usec(left_to_play
, &u
->sink
->sample_spec
) > process_usec
+max_sleep_usec
/2) {
528 pa_log_debug("Not filling up, because too early.");
533 if (PA_UNLIKELY(n_bytes
<= u
->hwbuf_unused
)) {
537 char *dn
= pa_alsa_get_driver_name_by_pcm(u
->pcm_handle
);
538 pa_log(_("ALSA woke us up to write new data to the device, but there was actually nothing to write!\n"
539 "Most likely this is a bug in the ALSA driver '%s'. Please report this issue to the ALSA developers.\n"
540 "We were woken up with POLLOUT set -- however a subsequent snd_pcm_avail() returned 0 or another value < min_avail."),
546 pa_log_debug("Not filling up, because not necessary.");
554 pa_log_debug("Not filling up, because already too many iterations.");
560 n_bytes
-= u
->hwbuf_unused
;
564 pa_log_debug("Filling up");
571 const snd_pcm_channel_area_t
*areas
;
572 snd_pcm_uframes_t offset
, frames
;
573 snd_pcm_sframes_t sframes
;
575 frames
= (snd_pcm_uframes_t
) (n_bytes
/ u
->frame_size
);
576 /* pa_log_debug("%lu frames to write", (unsigned long) frames); */
578 if (PA_UNLIKELY((err
= pa_alsa_safe_mmap_begin(u
->pcm_handle
, &areas
, &offset
, &frames
, u
->hwbuf_size
, &u
->sink
->sample_spec
)) < 0)) {
580 if (!after_avail
&& err
== -EAGAIN
)
583 if ((r
= try_recover(u
, "snd_pcm_mmap_begin", err
)) == 0)
589 /* Make sure that if these memblocks need to be copied they will fit into one slot */
590 if (frames
> pa_mempool_block_size_max(u
->sink
->core
->mempool
)/u
->frame_size
)
591 frames
= pa_mempool_block_size_max(u
->sink
->core
->mempool
)/u
->frame_size
;
593 if (!after_avail
&& frames
== 0)
596 pa_assert(frames
> 0);
599 /* Check these are multiples of 8 bit */
600 pa_assert((areas
[0].first
& 7) == 0);
601 pa_assert((areas
[0].step
& 7)== 0);
603 /* We assume a single interleaved memory buffer */
604 pa_assert((areas
[0].first
>> 3) == 0);
605 pa_assert((areas
[0].step
>> 3) == u
->frame_size
);
607 p
= (uint8_t*) areas
[0].addr
+ (offset
* u
->frame_size
);
609 chunk
.memblock
= pa_memblock_new_fixed(u
->core
->mempool
, p
, frames
* u
->frame_size
, TRUE
);
610 chunk
.length
= pa_memblock_get_length(chunk
.memblock
);
613 pa_sink_render_into_full(u
->sink
, &chunk
);
614 pa_memblock_unref_fixed(chunk
.memblock
);
616 if (PA_UNLIKELY((sframes
= snd_pcm_mmap_commit(u
->pcm_handle
, offset
, frames
)) < 0)) {
618 if (!after_avail
&& (int) sframes
== -EAGAIN
)
621 if ((r
= try_recover(u
, "snd_pcm_mmap_commit", (int) sframes
)) == 0)
629 u
->write_count
+= frames
* u
->frame_size
;
630 u
->since_start
+= frames
* u
->frame_size
;
633 pa_log_debug("Wrote %lu bytes (of possible %lu bytes)", (unsigned long) (frames
* u
->frame_size
), (unsigned long) n_bytes
);
636 if ((size_t) frames
* u
->frame_size
>= n_bytes
)
639 n_bytes
-= (size_t) frames
* u
->frame_size
;
644 *sleep_usec
= pa_bytes_to_usec(left_to_play
, &u
->sink
->sample_spec
);
646 if (*sleep_usec
> process_usec
)
647 *sleep_usec
-= process_usec
;
653 return work_done
? 1 : 0;
656 static int unix_write(struct userdata
*u
, pa_usec_t
*sleep_usec
, pa_bool_t polled
, pa_bool_t on_timeout
) {
657 pa_bool_t work_done
= FALSE
;
658 pa_usec_t max_sleep_usec
= 0, process_usec
= 0;
663 pa_sink_assert_ref(u
->sink
);
666 hw_sleep_time(u
, &max_sleep_usec
, &process_usec
);
672 pa_bool_t after_avail
= TRUE
;
674 if (PA_UNLIKELY((n
= pa_alsa_safe_avail(u
->pcm_handle
, u
->hwbuf_size
, &u
->sink
->sample_spec
)) < 0)) {
676 if ((r
= try_recover(u
, "snd_pcm_avail", (int) n
)) == 0)
682 n_bytes
= (size_t) n
* u
->frame_size
;
683 left_to_play
= check_left_to_play(u
, n_bytes
, on_timeout
);
688 /* We won't fill up the playback buffer before at least
689 * half the sleep time is over because otherwise we might
690 * ask for more data from the clients then they expect. We
691 * need to guarantee that clients only have to keep around
692 * a single hw buffer length. */
695 pa_bytes_to_usec(left_to_play
, &u
->sink
->sample_spec
) > process_usec
+max_sleep_usec
/2)
698 if (PA_UNLIKELY(n_bytes
<= u
->hwbuf_unused
)) {
702 char *dn
= pa_alsa_get_driver_name_by_pcm(u
->pcm_handle
);
703 pa_log(_("ALSA woke us up to write new data to the device, but there was actually nothing to write!\n"
704 "Most likely this is a bug in the ALSA driver '%s'. Please report this issue to the ALSA developers.\n"
705 "We were woken up with POLLOUT set -- however a subsequent snd_pcm_avail() returned 0 or another value < min_avail."),
715 pa_log_debug("Not filling up, because already too many iterations.");
721 n_bytes
-= u
->hwbuf_unused
;
725 snd_pcm_sframes_t frames
;
728 /* pa_log_debug("%lu frames to write", (unsigned long) frames); */
730 if (u
->memchunk
.length
<= 0)
731 pa_sink_render(u
->sink
, n_bytes
, &u
->memchunk
);
733 pa_assert(u
->memchunk
.length
> 0);
735 frames
= (snd_pcm_sframes_t
) (u
->memchunk
.length
/ u
->frame_size
);
737 if (frames
> (snd_pcm_sframes_t
) (n_bytes
/u
->frame_size
))
738 frames
= (snd_pcm_sframes_t
) (n_bytes
/u
->frame_size
);
740 p
= pa_memblock_acquire(u
->memchunk
.memblock
);
741 frames
= snd_pcm_writei(u
->pcm_handle
, (const uint8_t*) p
+ u
->memchunk
.index
, (snd_pcm_uframes_t
) frames
);
742 pa_memblock_release(u
->memchunk
.memblock
);
744 if (PA_UNLIKELY(frames
< 0)) {
746 if (!after_avail
&& (int) frames
== -EAGAIN
)
749 if ((r
= try_recover(u
, "snd_pcm_writei", (int) frames
)) == 0)
755 if (!after_avail
&& frames
== 0)
758 pa_assert(frames
> 0);
761 u
->memchunk
.index
+= (size_t) frames
* u
->frame_size
;
762 u
->memchunk
.length
-= (size_t) frames
* u
->frame_size
;
764 if (u
->memchunk
.length
<= 0) {
765 pa_memblock_unref(u
->memchunk
.memblock
);
766 pa_memchunk_reset(&u
->memchunk
);
771 u
->write_count
+= frames
* u
->frame_size
;
772 u
->since_start
+= frames
* u
->frame_size
;
774 /* pa_log_debug("wrote %lu frames", (unsigned long) frames); */
776 if ((size_t) frames
* u
->frame_size
>= n_bytes
)
779 n_bytes
-= (size_t) frames
* u
->frame_size
;
784 *sleep_usec
= pa_bytes_to_usec(left_to_play
, &u
->sink
->sample_spec
);
786 if (*sleep_usec
> process_usec
)
787 *sleep_usec
-= process_usec
;
793 return work_done
? 1 : 0;
796 static void update_smoother(struct userdata
*u
) {
797 snd_pcm_sframes_t delay
= 0;
800 pa_usec_t now1
= 0, now2
;
801 snd_pcm_status_t
*status
;
803 snd_pcm_status_alloca(&status
);
806 pa_assert(u
->pcm_handle
);
808 /* Let's update the time smoother */
810 if (PA_UNLIKELY((err
= pa_alsa_safe_delay(u
->pcm_handle
, &delay
, u
->hwbuf_size
, &u
->sink
->sample_spec
, FALSE
)) < 0)) {
811 pa_log_warn("Failed to query DSP status data: %s", pa_alsa_strerror(err
));
815 if (PA_UNLIKELY((err
= snd_pcm_status(u
->pcm_handle
, status
)) < 0))
816 pa_log_warn("Failed to get timestamp: %s", pa_alsa_strerror(err
));
818 snd_htimestamp_t htstamp
= { 0, 0 };
819 snd_pcm_status_get_htstamp(status
, &htstamp
);
820 now1
= pa_timespec_load(&htstamp
);
823 /* Hmm, if the timestamp is 0, then it wasn't set and we take the current time */
825 now1
= pa_rtclock_now();
827 /* check if the time since the last update is bigger than the interval */
828 if (u
->last_smoother_update
> 0)
829 if (u
->last_smoother_update
+ u
->smoother_interval
> now1
)
832 position
= (int64_t) u
->write_count
- ((int64_t) delay
* (int64_t) u
->frame_size
);
834 if (PA_UNLIKELY(position
< 0))
837 now2
= pa_bytes_to_usec((uint64_t) position
, &u
->sink
->sample_spec
);
839 pa_smoother_put(u
->smoother
, now1
, now2
);
841 u
->last_smoother_update
= now1
;
842 /* exponentially increase the update interval up to the MAX limit */
843 u
->smoother_interval
= PA_MIN (u
->smoother_interval
* 2, SMOOTHER_MAX_INTERVAL
);
846 static pa_usec_t
sink_get_latency(struct userdata
*u
) {
849 pa_usec_t now1
, now2
;
853 now1
= pa_rtclock_now();
854 now2
= pa_smoother_get(u
->smoother
, now1
);
856 delay
= (int64_t) pa_bytes_to_usec(u
->write_count
, &u
->sink
->sample_spec
) - (int64_t) now2
;
858 r
= delay
>= 0 ? (pa_usec_t
) delay
: 0;
860 if (u
->memchunk
.memblock
)
861 r
+= pa_bytes_to_usec(u
->memchunk
.length
, &u
->sink
->sample_spec
);
866 static int build_pollfd(struct userdata
*u
) {
868 pa_assert(u
->pcm_handle
);
870 if (u
->alsa_rtpoll_item
)
871 pa_rtpoll_item_free(u
->alsa_rtpoll_item
);
873 if (!(u
->alsa_rtpoll_item
= pa_alsa_build_pollfd(u
->pcm_handle
, u
->rtpoll
)))
879 /* Called from IO context */
880 static int suspend(struct userdata
*u
) {
882 pa_assert(u
->pcm_handle
);
884 pa_smoother_pause(u
->smoother
, pa_rtclock_now());
886 /* Let's suspend -- we don't call snd_pcm_drain() here since that might
887 * take awfully long with our long buffer sizes today. */
888 snd_pcm_close(u
->pcm_handle
);
889 u
->pcm_handle
= NULL
;
891 if (u
->alsa_rtpoll_item
) {
892 pa_rtpoll_item_free(u
->alsa_rtpoll_item
);
893 u
->alsa_rtpoll_item
= NULL
;
896 /* We reset max_rewind/max_request here to make sure that while we
897 * are suspended the old max_request/max_rewind values set before
898 * the suspend can influence the per-stream buffer of newly
899 * created streams, without their requirements having any
900 * influence on them. */
901 pa_sink_set_max_rewind_within_thread(u
->sink
, 0);
902 pa_sink_set_max_request_within_thread(u
->sink
, 0);
904 pa_log_info("Device suspended...");
909 /* Called from IO context */
910 static int update_sw_params(struct userdata
*u
) {
911 snd_pcm_uframes_t avail_min
;
916 /* Use the full buffer if noone asked us for anything specific */
922 if ((latency
= pa_sink_get_requested_latency_within_thread(u
->sink
)) != (pa_usec_t
) -1) {
925 pa_log_debug("Latency set to %0.2fms", (double) latency
/ PA_USEC_PER_MSEC
);
927 b
= pa_usec_to_bytes(latency
, &u
->sink
->sample_spec
);
929 /* We need at least one sample in our buffer */
931 if (PA_UNLIKELY(b
< u
->frame_size
))
934 u
->hwbuf_unused
= PA_LIKELY(b
< u
->hwbuf_size
) ? (u
->hwbuf_size
- b
) : 0;
937 fix_min_sleep_wakeup(u
);
938 fix_tsched_watermark(u
);
941 pa_log_debug("hwbuf_unused=%lu", (unsigned long) u
->hwbuf_unused
);
943 /* We need at last one frame in the used part of the buffer */
944 avail_min
= (snd_pcm_uframes_t
) u
->hwbuf_unused
/ u
->frame_size
+ 1;
947 pa_usec_t sleep_usec
, process_usec
;
949 hw_sleep_time(u
, &sleep_usec
, &process_usec
);
950 avail_min
+= pa_usec_to_bytes(sleep_usec
, &u
->sink
->sample_spec
) / u
->frame_size
;
953 pa_log_debug("setting avail_min=%lu", (unsigned long) avail_min
);
955 if ((err
= pa_alsa_set_sw_params(u
->pcm_handle
, avail_min
, !u
->use_tsched
)) < 0) {
956 pa_log("Failed to set software parameters: %s", pa_alsa_strerror(err
));
960 pa_sink_set_max_request_within_thread(u
->sink
, u
->hwbuf_size
- u
->hwbuf_unused
);
961 if (pa_alsa_pcm_is_hw(u
->pcm_handle
))
962 pa_sink_set_max_rewind_within_thread(u
->sink
, u
->hwbuf_size
);
964 pa_log_info("Disabling rewind_within_thread for device %s", u
->device_name
);
965 pa_sink_set_max_rewind_within_thread(u
->sink
, 0);
971 /* Called from IO context */
972 static int unsuspend(struct userdata
*u
) {
976 snd_pcm_uframes_t period_size
, buffer_size
;
979 pa_assert(!u
->pcm_handle
);
981 pa_log_info("Trying resume...");
983 if ((err
= snd_pcm_open(&u
->pcm_handle
, u
->device_name
, SND_PCM_STREAM_PLAYBACK
,
985 SND_PCM_NO_AUTO_RESAMPLE
|
986 SND_PCM_NO_AUTO_CHANNELS
|
987 SND_PCM_NO_AUTO_FORMAT
)) < 0) {
988 pa_log("Error opening PCM device %s: %s", u
->device_name
, pa_alsa_strerror(err
));
992 ss
= u
->sink
->sample_spec
;
993 period_size
= u
->fragment_size
/ u
->frame_size
;
994 buffer_size
= u
->hwbuf_size
/ u
->frame_size
;
998 if ((err
= pa_alsa_set_hw_params(u
->pcm_handle
, &ss
, &period_size
, &buffer_size
, 0, &b
, &d
, TRUE
)) < 0) {
999 pa_log("Failed to set hardware parameters: %s", pa_alsa_strerror(err
));
1003 if (b
!= u
->use_mmap
|| d
!= u
->use_tsched
) {
1004 pa_log_warn("Resume failed, couldn't get original access mode.");
1008 if (!pa_sample_spec_equal(&ss
, &u
->sink
->sample_spec
)) {
1009 pa_log_warn("Resume failed, couldn't restore original sample settings.");
1013 if (period_size
*u
->frame_size
!= u
->fragment_size
||
1014 buffer_size
*u
->frame_size
!= u
->hwbuf_size
) {
1015 pa_log_warn("Resume failed, couldn't restore original fragment settings. (Old: %lu/%lu, New %lu/%lu)",
1016 (unsigned long) u
->hwbuf_size
, (unsigned long) u
->fragment_size
,
1017 (unsigned long) (buffer_size
*u
->frame_size
), (unsigned long) (period_size
*u
->frame_size
));
1021 if (update_sw_params(u
) < 0)
1024 if (build_pollfd(u
) < 0)
1028 pa_smoother_reset(u
->smoother
, pa_rtclock_now(), TRUE
);
1029 u
->smoother_interval
= SMOOTHER_MIN_INTERVAL
;
1030 u
->last_smoother_update
= 0;
1035 pa_log_info("Resumed successfully...");
1040 if (u
->pcm_handle
) {
1041 snd_pcm_close(u
->pcm_handle
);
1042 u
->pcm_handle
= NULL
;
1048 /* Called from IO context */
1049 static int sink_process_msg(pa_msgobject
*o
, int code
, void *data
, int64_t offset
, pa_memchunk
*chunk
) {
1050 struct userdata
*u
= PA_SINK(o
)->userdata
;
1054 case PA_SINK_MESSAGE_GET_LATENCY
: {
1058 r
= sink_get_latency(u
);
1060 *((pa_usec_t
*) data
) = r
;
1065 case PA_SINK_MESSAGE_SET_STATE
:
1067 switch ((pa_sink_state_t
) PA_PTR_TO_UINT(data
)) {
1069 case PA_SINK_SUSPENDED
: {
1072 pa_assert(PA_SINK_IS_OPENED(u
->sink
->thread_info
.state
));
1074 if ((r
= suspend(u
)) < 0)
1081 case PA_SINK_RUNNING
: {
1084 if (u
->sink
->thread_info
.state
== PA_SINK_INIT
) {
1085 if (build_pollfd(u
) < 0)
1089 if (u
->sink
->thread_info
.state
== PA_SINK_SUSPENDED
) {
1090 if ((r
= unsuspend(u
)) < 0)
1097 case PA_SINK_UNLINKED
:
1099 case PA_SINK_INVALID_STATE
:
1106 return pa_sink_process_msg(o
, code
, data
, offset
, chunk
);
1109 /* Called from main context */
1110 static int sink_set_state_cb(pa_sink
*s
, pa_sink_state_t new_state
) {
1111 pa_sink_state_t old_state
;
1114 pa_sink_assert_ref(s
);
1115 pa_assert_se(u
= s
->userdata
);
1117 old_state
= pa_sink_get_state(u
->sink
);
1119 if (PA_SINK_IS_OPENED(old_state
) && new_state
== PA_SINK_SUSPENDED
)
1121 else if (old_state
== PA_SINK_SUSPENDED
&& PA_SINK_IS_OPENED(new_state
))
1122 if (reserve_init(u
, u
->device_name
) < 0)
1123 return -PA_ERR_BUSY
;
1128 static int ctl_mixer_callback(snd_mixer_elem_t
*elem
, unsigned int mask
) {
1129 struct userdata
*u
= snd_mixer_elem_get_callback_private(elem
);
1132 pa_assert(u
->mixer_handle
);
1134 if (mask
== SND_CTL_EVENT_MASK_REMOVE
)
1137 if (u
->sink
->suspend_cause
& PA_SUSPEND_SESSION
)
1140 if (mask
& SND_CTL_EVENT_MASK_VALUE
) {
1141 pa_sink_get_volume(u
->sink
, TRUE
);
1142 pa_sink_get_mute(u
->sink
, TRUE
);
1148 static int io_mixer_callback(snd_mixer_elem_t
*elem
, unsigned int mask
) {
1149 struct userdata
*u
= snd_mixer_elem_get_callback_private(elem
);
1152 pa_assert(u
->mixer_handle
);
1154 if (mask
== SND_CTL_EVENT_MASK_REMOVE
)
1157 if (u
->sink
->suspend_cause
& PA_SUSPEND_SESSION
)
1160 if (mask
& SND_CTL_EVENT_MASK_VALUE
)
1161 pa_sink_update_volume_and_mute(u
->sink
);
1166 static void sink_get_volume_cb(pa_sink
*s
) {
1167 struct userdata
*u
= s
->userdata
;
1169 char t
[PA_CVOLUME_SNPRINT_MAX
];
1172 pa_assert(u
->mixer_path
);
1173 pa_assert(u
->mixer_handle
);
1175 if (pa_alsa_path_get_volume(u
->mixer_path
, u
->mixer_handle
, &s
->channel_map
, &r
) < 0)
1178 /* Shift down by the base volume, so that 0dB becomes maximum volume */
1179 pa_sw_cvolume_multiply_scalar(&r
, &r
, s
->base_volume
);
1181 pa_log_debug("Read hardware volume: %s", pa_cvolume_snprint(t
, sizeof(t
), &r
));
1183 if (pa_cvolume_equal(&u
->hardware_volume
, &r
))
1186 s
->real_volume
= u
->hardware_volume
= r
;
1188 /* Hmm, so the hardware volume changed, let's reset our software volume */
1189 if (u
->mixer_path
->has_dB
)
1190 pa_sink_set_soft_volume(s
, NULL
);
1193 static void sink_set_volume_cb(pa_sink
*s
) {
1194 struct userdata
*u
= s
->userdata
;
1196 char t
[PA_CVOLUME_SNPRINT_MAX
];
1197 pa_bool_t write_to_hw
= (s
->flags
& PA_SINK_SYNC_VOLUME
) ? FALSE
: TRUE
;
1200 pa_assert(u
->mixer_path
);
1201 pa_assert(u
->mixer_handle
);
1203 /* Shift up by the base volume */
1204 pa_sw_cvolume_divide_scalar(&r
, &s
->real_volume
, s
->base_volume
);
1206 if (pa_alsa_path_set_volume(u
->mixer_path
, u
->mixer_handle
, &s
->channel_map
, &r
, write_to_hw
) < 0)
1209 /* Shift down by the base volume, so that 0dB becomes maximum volume */
1210 pa_sw_cvolume_multiply_scalar(&r
, &r
, s
->base_volume
);
1212 u
->hardware_volume
= r
;
1214 if (u
->mixer_path
->has_dB
) {
1215 pa_cvolume new_soft_volume
;
1216 pa_bool_t accurate_enough
;
1218 /* Match exactly what the user requested by software */
1219 pa_sw_cvolume_divide(&new_soft_volume
, &s
->real_volume
, &u
->hardware_volume
);
1221 /* If the adjustment to do in software is only minimal we
1222 * can skip it. That saves us CPU at the expense of a bit of
1225 (pa_cvolume_min(&new_soft_volume
) >= (PA_VOLUME_NORM
- VOLUME_ACCURACY
)) &&
1226 (pa_cvolume_max(&new_soft_volume
) <= (PA_VOLUME_NORM
+ VOLUME_ACCURACY
));
1228 pa_log_debug("Requested volume: %s", pa_cvolume_snprint(t
, sizeof(t
), &s
->real_volume
));
1229 pa_log_debug("Got hardware volume: %s", pa_cvolume_snprint(t
, sizeof(t
), &u
->hardware_volume
));
1230 pa_log_debug("Calculated software volume: %s (accurate-enough=%s)", pa_cvolume_snprint(t
, sizeof(t
), &new_soft_volume
),
1231 pa_yes_no(accurate_enough
));
1233 if (!accurate_enough
)
1234 s
->soft_volume
= new_soft_volume
;
1237 pa_log_debug("Wrote hardware volume: %s", pa_cvolume_snprint(t
, sizeof(t
), &r
));
1239 /* We can't match exactly what the user requested, hence let's
1240 * at least tell the user about it */
1246 static void sink_write_volume_cb(pa_sink
*s
) {
1247 struct userdata
*u
= s
->userdata
;
1248 pa_cvolume hw_vol
= s
->thread_info
.current_hw_volume
;
1251 pa_assert(u
->mixer_path
);
1252 pa_assert(u
->mixer_handle
);
1253 pa_assert(s
->flags
& PA_SINK_SYNC_VOLUME
);
1255 if (pa_alsa_path_set_volume(u
->mixer_path
, u
->mixer_handle
, &s
->channel_map
, &hw_vol
, TRUE
) < 0)
1256 pa_log_error("Writing HW volume failed");
1259 pa_bool_t accurate_enough
;
1260 pa_sw_cvolume_divide(&tmp_vol
, &hw_vol
, &s
->thread_info
.current_hw_volume
);
1262 (pa_cvolume_min(&tmp_vol
) >= (PA_VOLUME_NORM
- VOLUME_ACCURACY
)) &&
1263 (pa_cvolume_max(&tmp_vol
) <= (PA_VOLUME_NORM
+ VOLUME_ACCURACY
));
1264 if (!accurate_enough
) {
1265 char t
[PA_CVOLUME_SNPRINT_MAX
];
1266 pa_log_debug("Written HW volume did not match with the request %s != %s",
1267 pa_cvolume_snprint(t
, sizeof(t
), &s
->thread_info
.current_hw_volume
),
1268 pa_cvolume_snprint(t
, sizeof(t
), &hw_vol
));
1273 static void sink_get_mute_cb(pa_sink
*s
) {
1274 struct userdata
*u
= s
->userdata
;
1278 pa_assert(u
->mixer_path
);
1279 pa_assert(u
->mixer_handle
);
1281 if (pa_alsa_path_get_mute(u
->mixer_path
, u
->mixer_handle
, &b
) < 0)
1287 static void sink_set_mute_cb(pa_sink
*s
) {
1288 struct userdata
*u
= s
->userdata
;
1291 pa_assert(u
->mixer_path
);
1292 pa_assert(u
->mixer_handle
);
1294 pa_alsa_path_set_mute(u
->mixer_path
, u
->mixer_handle
, s
->muted
);
1297 static int sink_set_port_cb(pa_sink
*s
, pa_device_port
*p
) {
1298 struct userdata
*u
= s
->userdata
;
1299 pa_alsa_port_data
*data
;
1303 pa_assert(u
->mixer_handle
);
1305 data
= PA_DEVICE_PORT_DATA(p
);
1307 pa_assert_se(u
->mixer_path
= data
->path
);
1308 pa_alsa_path_select(u
->mixer_path
, u
->mixer_handle
);
1310 if (u
->mixer_path
->has_volume
&& u
->mixer_path
->has_dB
) {
1311 s
->base_volume
= pa_sw_volume_from_dB(-u
->mixer_path
->max_dB
);
1312 s
->n_volume_steps
= PA_VOLUME_NORM
+1;
1314 pa_log_info("Fixing base volume to %0.2f dB", pa_sw_volume_to_dB(s
->base_volume
));
1316 s
->base_volume
= PA_VOLUME_NORM
;
1317 s
->n_volume_steps
= u
->mixer_path
->max_volume
- u
->mixer_path
->min_volume
+ 1;
1321 pa_alsa_setting_select(data
->setting
, u
->mixer_handle
);
1331 static void sink_update_requested_latency_cb(pa_sink
*s
) {
1332 struct userdata
*u
= s
->userdata
;
1335 pa_assert(u
->use_tsched
); /* only when timer scheduling is used
1336 * we can dynamically adjust the
1342 before
= u
->hwbuf_unused
;
1343 update_sw_params(u
);
1345 /* Let's check whether we now use only a smaller part of the
1346 buffer then before. If so, we need to make sure that subsequent
1347 rewinds are relative to the new maximum fill level and not to the
1348 current fill level. Thus, let's do a full rewind once, to clear
1351 if (u
->hwbuf_unused
> before
) {
1352 pa_log_debug("Requesting rewind due to latency change.");
1353 pa_sink_request_rewind(s
, (size_t) -1);
1357 static int process_rewind(struct userdata
*u
) {
1358 snd_pcm_sframes_t unused
;
1359 size_t rewind_nbytes
, unused_nbytes
, limit_nbytes
;
1362 /* Figure out how much we shall rewind and reset the counter */
1363 rewind_nbytes
= u
->sink
->thread_info
.rewind_nbytes
;
1365 pa_log_debug("Requested to rewind %lu bytes.", (unsigned long) rewind_nbytes
);
1367 if (PA_UNLIKELY((unused
= pa_alsa_safe_avail(u
->pcm_handle
, u
->hwbuf_size
, &u
->sink
->sample_spec
)) < 0)) {
1368 pa_log("snd_pcm_avail() failed: %s", pa_alsa_strerror((int) unused
));
1372 unused_nbytes
= (size_t) unused
* u
->frame_size
;
1374 /* make sure rewind doesn't go too far, can cause issues with DMAs */
1375 unused_nbytes
+= u
->rewind_safeguard
;
1377 if (u
->hwbuf_size
> unused_nbytes
)
1378 limit_nbytes
= u
->hwbuf_size
- unused_nbytes
;
1382 if (rewind_nbytes
> limit_nbytes
)
1383 rewind_nbytes
= limit_nbytes
;
1385 if (rewind_nbytes
> 0) {
1386 snd_pcm_sframes_t in_frames
, out_frames
;
1388 pa_log_debug("Limited to %lu bytes.", (unsigned long) rewind_nbytes
);
1390 in_frames
= (snd_pcm_sframes_t
) (rewind_nbytes
/ u
->frame_size
);
1391 pa_log_debug("before: %lu", (unsigned long) in_frames
);
1392 if ((out_frames
= snd_pcm_rewind(u
->pcm_handle
, (snd_pcm_uframes_t
) in_frames
)) < 0) {
1393 pa_log("snd_pcm_rewind() failed: %s", pa_alsa_strerror((int) out_frames
));
1394 if (try_recover(u
, "process_rewind", out_frames
) < 0)
1399 pa_log_debug("after: %lu", (unsigned long) out_frames
);
1401 rewind_nbytes
= (size_t) out_frames
* u
->frame_size
;
1403 if (rewind_nbytes
<= 0)
1404 pa_log_info("Tried rewind, but was apparently not possible.");
1406 u
->write_count
-= rewind_nbytes
;
1407 pa_log_debug("Rewound %lu bytes.", (unsigned long) rewind_nbytes
);
1408 pa_sink_process_rewind(u
->sink
, rewind_nbytes
);
1410 u
->after_rewind
= TRUE
;
1414 pa_log_debug("Mhmm, actually there is nothing to rewind.");
1416 pa_sink_process_rewind(u
->sink
, 0);
1420 static void thread_func(void *userdata
) {
1421 struct userdata
*u
= userdata
;
1422 unsigned short revents
= 0;
1426 pa_log_debug("Thread starting up");
1428 if (u
->core
->realtime_scheduling
)
1429 pa_make_realtime(u
->core
->realtime_priority
);
1431 pa_thread_mq_install(&u
->thread_mq
);
1435 pa_usec_t rtpoll_sleep
= 0;
1438 pa_log_debug("Loop");
1441 /* Render some data and write it to the dsp */
1442 if (PA_SINK_IS_OPENED(u
->sink
->thread_info
.state
)) {
1444 pa_usec_t sleep_usec
= 0;
1445 pa_bool_t on_timeout
= pa_rtpoll_timer_elapsed(u
->rtpoll
);
1447 if (PA_UNLIKELY(u
->sink
->thread_info
.rewind_requested
))
1448 if (process_rewind(u
) < 0)
1452 work_done
= mmap_write(u
, &sleep_usec
, revents
& POLLOUT
, on_timeout
);
1454 work_done
= unix_write(u
, &sleep_usec
, revents
& POLLOUT
, on_timeout
);
1459 /* pa_log_debug("work_done = %i", work_done); */
1464 pa_log_info("Starting playback.");
1465 snd_pcm_start(u
->pcm_handle
);
1467 pa_smoother_resume(u
->smoother
, pa_rtclock_now(), TRUE
);
1475 if (u
->use_tsched
) {
1478 if (u
->since_start
<= u
->hwbuf_size
) {
1480 /* USB devices on ALSA seem to hit a buffer
1481 * underrun during the first iterations much
1482 * quicker then we calculate here, probably due to
1483 * the transport latency. To accommodate for that
1484 * we artificially decrease the sleep time until
1485 * we have filled the buffer at least once
1488 if (pa_log_ratelimit())
1489 pa_log_debug("Cutting sleep time for the initial iterations by half.");
1493 /* OK, the playback buffer is now full, let's
1494 * calculate when to wake up next */
1495 /* pa_log_debug("Waking up in %0.2fms (sound card clock).", (double) sleep_usec / PA_USEC_PER_MSEC); */
1497 /* Convert from the sound card time domain to the
1498 * system time domain */
1499 cusec
= pa_smoother_translate(u
->smoother
, pa_rtclock_now(), sleep_usec
);
1501 /* pa_log_debug("Waking up in %0.2fms (system clock).", (double) cusec / PA_USEC_PER_MSEC); */
1503 /* We don't trust the conversion, so we wake up whatever comes first */
1504 rtpoll_sleep
= PA_MIN(sleep_usec
, cusec
);
1507 u
->after_rewind
= FALSE
;
1511 if (u
->sink
->flags
& PA_SINK_SYNC_VOLUME
) {
1512 pa_usec_t volume_sleep
;
1513 pa_sink_volume_change_apply(u
->sink
, &volume_sleep
);
1514 if (volume_sleep
> 0)
1515 rtpoll_sleep
= MIN(volume_sleep
, rtpoll_sleep
);
1518 if (rtpoll_sleep
> 0)
1519 pa_rtpoll_set_timer_relative(u
->rtpoll
, rtpoll_sleep
);
1521 pa_rtpoll_set_timer_disabled(u
->rtpoll
);
1523 /* Hmm, nothing to do. Let's sleep */
1524 if ((ret
= pa_rtpoll_run(u
->rtpoll
, TRUE
)) < 0)
1527 if (u
->sink
->flags
& PA_SINK_SYNC_VOLUME
)
1528 pa_sink_volume_change_apply(u
->sink
, NULL
);
1533 /* Tell ALSA about this and process its response */
1534 if (PA_SINK_IS_OPENED(u
->sink
->thread_info
.state
)) {
1535 struct pollfd
*pollfd
;
1539 pollfd
= pa_rtpoll_item_get_pollfd(u
->alsa_rtpoll_item
, &n
);
1541 if ((err
= snd_pcm_poll_descriptors_revents(u
->pcm_handle
, pollfd
, n
, &revents
)) < 0) {
1542 pa_log("snd_pcm_poll_descriptors_revents() failed: %s", pa_alsa_strerror(err
));
1546 if (revents
& ~POLLOUT
) {
1547 if (pa_alsa_recover_from_poll(u
->pcm_handle
, revents
) < 0)
1552 } else if (revents
&& u
->use_tsched
&& pa_log_ratelimit())
1553 pa_log_debug("Wakeup from ALSA!");
1560 /* If this was no regular exit from the loop we have to continue
1561 * processing messages until we received PA_MESSAGE_SHUTDOWN */
1562 pa_asyncmsgq_post(u
->thread_mq
.outq
, PA_MSGOBJECT(u
->core
), PA_CORE_MESSAGE_UNLOAD_MODULE
, u
->module
, 0, NULL
, NULL
);
1563 pa_asyncmsgq_wait_for(u
->thread_mq
.inq
, PA_MESSAGE_SHUTDOWN
);
1566 pa_log_debug("Thread shutting down");
1569 static void set_sink_name(pa_sink_new_data
*data
, pa_modargs
*ma
, const char *device_id
, const char *device_name
, pa_alsa_mapping
*mapping
) {
1575 pa_assert(device_name
);
1577 if ((n
= pa_modargs_get_value(ma
, "sink_name", NULL
))) {
1578 pa_sink_new_data_set_name(data
, n
);
1579 data
->namereg_fail
= TRUE
;
1583 if ((n
= pa_modargs_get_value(ma
, "name", NULL
)))
1584 data
->namereg_fail
= TRUE
;
1586 n
= device_id
? device_id
: device_name
;
1587 data
->namereg_fail
= FALSE
;
1591 t
= pa_sprintf_malloc("alsa_output.%s.%s", n
, mapping
->name
);
1593 t
= pa_sprintf_malloc("alsa_output.%s", n
);
1595 pa_sink_new_data_set_name(data
, t
);
1599 static void find_mixer(struct userdata
*u
, pa_alsa_mapping
*mapping
, const char *element
, pa_bool_t ignore_dB
) {
1601 if (!mapping
&& !element
)
1604 if (!(u
->mixer_handle
= pa_alsa_open_mixer_for_pcm(u
->pcm_handle
, &u
->control_device
))) {
1605 pa_log_info("Failed to find a working mixer device.");
1611 if (!(u
->mixer_path
= pa_alsa_path_synthesize(element
, PA_ALSA_DIRECTION_OUTPUT
)))
1614 if (pa_alsa_path_probe(u
->mixer_path
, u
->mixer_handle
, ignore_dB
) < 0)
1617 pa_log_debug("Probed mixer path %s:", u
->mixer_path
->name
);
1618 pa_alsa_path_dump(u
->mixer_path
);
1621 if (!(u
->mixer_path_set
= pa_alsa_path_set_new(mapping
, PA_ALSA_DIRECTION_OUTPUT
)))
1624 pa_alsa_path_set_probe(u
->mixer_path_set
, u
->mixer_handle
, ignore_dB
);
1626 pa_log_debug("Probed mixer paths:");
1627 pa_alsa_path_set_dump(u
->mixer_path_set
);
1634 if (u
->mixer_path_set
) {
1635 pa_alsa_path_set_free(u
->mixer_path_set
);
1636 u
->mixer_path_set
= NULL
;
1637 } else if (u
->mixer_path
) {
1638 pa_alsa_path_free(u
->mixer_path
);
1639 u
->mixer_path
= NULL
;
1642 if (u
->mixer_handle
) {
1643 snd_mixer_close(u
->mixer_handle
);
1644 u
->mixer_handle
= NULL
;
1648 static int setup_mixer(struct userdata
*u
, pa_bool_t ignore_dB
, pa_bool_t sync_volume
) {
1649 int (*mixer_callback
)(snd_mixer_elem_t
*, unsigned int);
1653 if (!u
->mixer_handle
)
1656 if (u
->sink
->active_port
) {
1657 pa_alsa_port_data
*data
;
1659 /* We have a list of supported paths, so let's activate the
1660 * one that has been chosen as active */
1662 data
= PA_DEVICE_PORT_DATA(u
->sink
->active_port
);
1663 u
->mixer_path
= data
->path
;
1665 pa_alsa_path_select(data
->path
, u
->mixer_handle
);
1668 pa_alsa_setting_select(data
->setting
, u
->mixer_handle
);
1672 if (!u
->mixer_path
&& u
->mixer_path_set
)
1673 u
->mixer_path
= u
->mixer_path_set
->paths
;
1675 if (u
->mixer_path
) {
1676 /* Hmm, we have only a single path, then let's activate it */
1678 pa_alsa_path_select(u
->mixer_path
, u
->mixer_handle
);
1680 if (u
->mixer_path
->settings
)
1681 pa_alsa_setting_select(u
->mixer_path
->settings
, u
->mixer_handle
);
1686 /* FIXME: need automatic detection rather than hard-coded path */
1687 if (!strcmp(u
->mixer_path
->name
, "iec958-passthrough-output")) {
1688 u
->sink
->flags
|= PA_SINK_PASSTHROUGH
;
1690 u
->sink
->flags
&= ~PA_SINK_PASSTHROUGH
;
1693 if (!u
->mixer_path
->has_volume
)
1694 pa_log_info("Driver does not support hardware volume control, falling back to software volume control.");
1697 if (u
->mixer_path
->has_dB
) {
1698 pa_log_info("Hardware volume ranges from %0.2f dB to %0.2f dB.", u
->mixer_path
->min_dB
, u
->mixer_path
->max_dB
);
1700 u
->sink
->base_volume
= pa_sw_volume_from_dB(-u
->mixer_path
->max_dB
);
1701 u
->sink
->n_volume_steps
= PA_VOLUME_NORM
+1;
1703 if (u
->mixer_path
->max_dB
> 0.0)
1704 pa_log_info("Fixing base volume to %0.2f dB", pa_sw_volume_to_dB(u
->sink
->base_volume
));
1706 pa_log_info("No particular base volume set, fixing to 0 dB");
1709 pa_log_info("Hardware volume ranges from %li to %li.", u
->mixer_path
->min_volume
, u
->mixer_path
->max_volume
);
1710 u
->sink
->base_volume
= PA_VOLUME_NORM
;
1711 u
->sink
->n_volume_steps
= u
->mixer_path
->max_volume
- u
->mixer_path
->min_volume
+ 1;
1714 u
->sink
->get_volume
= sink_get_volume_cb
;
1715 u
->sink
->set_volume
= sink_set_volume_cb
;
1716 u
->sink
->write_volume
= sink_write_volume_cb
;
1718 u
->sink
->flags
|= PA_SINK_HW_VOLUME_CTRL
;
1719 if (u
->mixer_path
->has_dB
) {
1720 u
->sink
->flags
|= PA_SINK_DECIBEL_VOLUME
;
1722 u
->sink
->flags
|= PA_SINK_SYNC_VOLUME
;
1723 pa_log_info("Successfully enabled synchronous volume.");
1727 pa_log_info("Using hardware volume control. Hardware dB scale %s.", u
->mixer_path
->has_dB
? "supported" : "not supported");
1730 if (!u
->mixer_path
->has_mute
) {
1731 pa_log_info("Driver does not support hardware mute control, falling back to software mute control.");
1733 u
->sink
->get_mute
= sink_get_mute_cb
;
1734 u
->sink
->set_mute
= sink_set_mute_cb
;
1735 u
->sink
->flags
|= PA_SINK_HW_MUTE_CTRL
;
1736 pa_log_info("Using hardware mute control.");
1740 u
->mixer_pd
= pa_alsa_mixer_pdata_new();
1741 mixer_callback
= io_mixer_callback
;
1743 if (pa_alsa_set_mixer_rtpoll(u
->mixer_pd
, u
->mixer_handle
, u
->rtpoll
) < 0) {
1744 pa_log("Failed to initialize file descriptor monitoring");
1749 u
->mixer_fdl
= pa_alsa_fdlist_new();
1750 mixer_callback
= ctl_mixer_callback
;
1752 if (pa_alsa_fdlist_set_mixer(u
->mixer_fdl
, u
->mixer_handle
, u
->core
->mainloop
) < 0) {
1753 pa_log("Failed to initialize file descriptor monitoring");
1758 if (u
->mixer_path_set
)
1759 pa_alsa_path_set_set_callback(u
->mixer_path_set
, u
->mixer_handle
, mixer_callback
, u
);
1761 pa_alsa_path_set_callback(u
->mixer_path
, u
->mixer_handle
, mixer_callback
, u
);
1766 pa_sink
*pa_alsa_sink_new(pa_module
*m
, pa_modargs
*ma
, const char*driver
, pa_card
*card
, pa_alsa_mapping
*mapping
) {
1768 struct userdata
*u
= NULL
;
1769 const char *dev_id
= NULL
;
1770 pa_sample_spec ss
, requested_ss
;
1772 uint32_t nfrags
, frag_size
, buffer_size
, tsched_size
, tsched_watermark
, rewind_safeguard
;
1773 snd_pcm_uframes_t period_frames
, buffer_frames
, tsched_frames
;
1775 pa_bool_t use_mmap
= TRUE
, b
, use_tsched
= TRUE
, d
, ignore_dB
= FALSE
, namereg_fail
= FALSE
, sync_volume
= FALSE
;
1776 pa_sink_new_data data
;
1777 pa_alsa_profile_set
*profile_set
= NULL
;
1782 ss
= m
->core
->default_sample_spec
;
1783 map
= m
->core
->default_channel_map
;
1784 if (pa_modargs_get_sample_spec_and_channel_map(ma
, &ss
, &map
, PA_CHANNEL_MAP_ALSA
) < 0) {
1785 pa_log("Failed to parse sample specification and channel map");
1790 frame_size
= pa_frame_size(&ss
);
1792 nfrags
= m
->core
->default_n_fragments
;
1793 frag_size
= (uint32_t) pa_usec_to_bytes(m
->core
->default_fragment_size_msec
*PA_USEC_PER_MSEC
, &ss
);
1795 frag_size
= (uint32_t) frame_size
;
1796 tsched_size
= (uint32_t) pa_usec_to_bytes(DEFAULT_TSCHED_BUFFER_USEC
, &ss
);
1797 tsched_watermark
= (uint32_t) pa_usec_to_bytes(DEFAULT_TSCHED_WATERMARK_USEC
, &ss
);
1799 if (pa_modargs_get_value_u32(ma
, "fragments", &nfrags
) < 0 ||
1800 pa_modargs_get_value_u32(ma
, "fragment_size", &frag_size
) < 0 ||
1801 pa_modargs_get_value_u32(ma
, "tsched_buffer_size", &tsched_size
) < 0 ||
1802 pa_modargs_get_value_u32(ma
, "tsched_buffer_watermark", &tsched_watermark
) < 0) {
1803 pa_log("Failed to parse buffer metrics");
1807 buffer_size
= nfrags
* frag_size
;
1809 period_frames
= frag_size
/frame_size
;
1810 buffer_frames
= buffer_size
/frame_size
;
1811 tsched_frames
= tsched_size
/frame_size
;
1813 if (pa_modargs_get_value_boolean(ma
, "mmap", &use_mmap
) < 0) {
1814 pa_log("Failed to parse mmap argument.");
1818 if (pa_modargs_get_value_boolean(ma
, "tsched", &use_tsched
) < 0) {
1819 pa_log("Failed to parse tsched argument.");
1823 if (pa_modargs_get_value_boolean(ma
, "ignore_dB", &ignore_dB
) < 0) {
1824 pa_log("Failed to parse ignore_dB argument.");
1828 rewind_safeguard
= PA_MAX(DEFAULT_REWIND_SAFEGUARD_BYTES
, pa_usec_to_bytes(DEFAULT_REWIND_SAFEGUARD_USEC
, &ss
));
1829 if (pa_modargs_get_value_u32(ma
, "rewind_safeguard", &rewind_safeguard
) < 0) {
1830 pa_log("Failed to parse rewind_safeguard argument");
1834 if (pa_modargs_get_value_boolean(ma
, "sync_volume", &sync_volume
) < 0) {
1835 pa_log("Failed to parse sync_volume argument.");
1839 use_tsched
= pa_alsa_may_tsched(use_tsched
);
1841 u
= pa_xnew0(struct userdata
, 1);
1844 u
->use_mmap
= use_mmap
;
1845 u
->use_tsched
= use_tsched
;
1847 u
->rewind_safeguard
= rewind_safeguard
;
1848 u
->rtpoll
= pa_rtpoll_new();
1849 pa_thread_mq_init(&u
->thread_mq
, m
->core
->mainloop
, u
->rtpoll
);
1851 u
->smoother
= pa_smoother_new(
1852 SMOOTHER_ADJUST_USEC
,
1853 SMOOTHER_WINDOW_USEC
,
1859 u
->smoother_interval
= SMOOTHER_MIN_INTERVAL
;
1861 dev_id
= pa_modargs_get_value(
1863 pa_modargs_get_value(ma
, "device", DEFAULT_DEVICE
));
1865 if (reserve_init(u
, dev_id
) < 0)
1868 if (reserve_monitor_init(u
, dev_id
) < 0)
1876 if (!(dev_id
= pa_modargs_get_value(ma
, "device_id", NULL
))) {
1877 pa_log("device_id= not set");
1881 if (!(u
->pcm_handle
= pa_alsa_open_by_device_id_mapping(
1885 SND_PCM_STREAM_PLAYBACK
,
1886 &period_frames
, &buffer_frames
, tsched_frames
,
1891 } else if ((dev_id
= pa_modargs_get_value(ma
, "device_id", NULL
))) {
1893 if (!(profile_set
= pa_alsa_profile_set_new(NULL
, &map
)))
1896 if (!(u
->pcm_handle
= pa_alsa_open_by_device_id_auto(
1900 SND_PCM_STREAM_PLAYBACK
,
1901 &period_frames
, &buffer_frames
, tsched_frames
,
1902 &b
, &d
, profile_set
, &mapping
)))
1908 if (!(u
->pcm_handle
= pa_alsa_open_by_device_string(
1909 pa_modargs_get_value(ma
, "device", DEFAULT_DEVICE
),
1912 SND_PCM_STREAM_PLAYBACK
,
1913 &period_frames
, &buffer_frames
, tsched_frames
,
1918 pa_assert(u
->device_name
);
1919 pa_log_info("Successfully opened device %s.", u
->device_name
);
1921 if (pa_alsa_pcm_is_modem(u
->pcm_handle
)) {
1922 pa_log_notice("Device %s is modem, refusing further initialization.", u
->device_name
);
1927 pa_log_info("Selected mapping '%s' (%s).", mapping
->description
, mapping
->name
);
1929 if (use_mmap
&& !b
) {
1930 pa_log_info("Device doesn't support mmap(), falling back to UNIX read/write mode.");
1931 u
->use_mmap
= use_mmap
= FALSE
;
1934 if (use_tsched
&& (!b
|| !d
)) {
1935 pa_log_info("Cannot enable timer-based scheduling, falling back to sound IRQ scheduling.");
1936 u
->use_tsched
= use_tsched
= FALSE
;
1940 pa_log_info("Successfully enabled mmap() mode.");
1943 pa_log_info("Successfully enabled timer-based scheduling mode.");
1945 /* ALSA might tweak the sample spec, so recalculate the frame size */
1946 frame_size
= pa_frame_size(&ss
);
1948 find_mixer(u
, mapping
, pa_modargs_get_value(ma
, "control", NULL
), ignore_dB
);
1950 pa_sink_new_data_init(&data
);
1951 data
.driver
= driver
;
1954 set_sink_name(&data
, ma
, dev_id
, u
->device_name
, mapping
);
1956 /* We need to give pa_modargs_get_value_boolean() a pointer to a local
1957 * variable instead of using &data.namereg_fail directly, because
1958 * data.namereg_fail is a bitfield and taking the address of a bitfield
1959 * variable is impossible. */
1960 namereg_fail
= data
.namereg_fail
;
1961 if (pa_modargs_get_value_boolean(ma
, "namereg_fail", &namereg_fail
) < 0) {
1962 pa_log("Failed to parse boolean argument namereg_fail.");
1963 pa_sink_new_data_done(&data
);
1966 data
.namereg_fail
= namereg_fail
;
1968 pa_sink_new_data_set_sample_spec(&data
, &ss
);
1969 pa_sink_new_data_set_channel_map(&data
, &map
);
1971 pa_alsa_init_proplist_pcm(m
->core
, data
.proplist
, u
->pcm_handle
);
1972 pa_proplist_sets(data
.proplist
, PA_PROP_DEVICE_STRING
, u
->device_name
);
1973 pa_proplist_setf(data
.proplist
, PA_PROP_DEVICE_BUFFERING_BUFFER_SIZE
, "%lu", (unsigned long) (buffer_frames
* frame_size
));
1974 pa_proplist_setf(data
.proplist
, PA_PROP_DEVICE_BUFFERING_FRAGMENT_SIZE
, "%lu", (unsigned long) (period_frames
* frame_size
));
1975 pa_proplist_sets(data
.proplist
, PA_PROP_DEVICE_ACCESS_MODE
, u
->use_tsched
? "mmap+timer" : (u
->use_mmap
? "mmap" : "serial"));
1978 pa_proplist_sets(data
.proplist
, PA_PROP_DEVICE_PROFILE_NAME
, mapping
->name
);
1979 pa_proplist_sets(data
.proplist
, PA_PROP_DEVICE_PROFILE_DESCRIPTION
, mapping
->description
);
1982 pa_alsa_init_description(data
.proplist
);
1984 if (u
->control_device
)
1985 pa_alsa_init_proplist_ctl(data
.proplist
, u
->control_device
);
1987 if (pa_modargs_get_proplist(ma
, "sink_properties", data
.proplist
, PA_UPDATE_REPLACE
) < 0) {
1988 pa_log("Invalid properties");
1989 pa_sink_new_data_done(&data
);
1993 if (u
->mixer_path_set
)
1994 pa_alsa_add_ports(&data
.ports
, u
->mixer_path_set
);
1996 u
->sink
= pa_sink_new(m
->core
, &data
, PA_SINK_HARDWARE
|PA_SINK_LATENCY
|(u
->use_tsched
? PA_SINK_DYNAMIC_LATENCY
: 0));
1997 pa_sink_new_data_done(&data
);
2000 pa_log("Failed to create sink object");
2004 if (pa_modargs_get_value_u32(ma
, "sync_volume_safety_margin",
2005 &u
->sink
->thread_info
.volume_change_safety_margin
) < 0) {
2006 pa_log("Failed to parse sync_volume_safety_margin parameter");
2010 if (pa_modargs_get_value_s32(ma
, "sync_volume_extra_delay",
2011 &u
->sink
->thread_info
.volume_change_extra_delay
) < 0) {
2012 pa_log("Failed to parse sync_volume_extra_delay parameter");
2016 u
->sink
->parent
.process_msg
= sink_process_msg
;
2018 u
->sink
->update_requested_latency
= sink_update_requested_latency_cb
;
2019 u
->sink
->set_state
= sink_set_state_cb
;
2020 u
->sink
->set_port
= sink_set_port_cb
;
2021 u
->sink
->userdata
= u
;
2023 pa_sink_set_asyncmsgq(u
->sink
, u
->thread_mq
.inq
);
2024 pa_sink_set_rtpoll(u
->sink
, u
->rtpoll
);
2026 u
->frame_size
= frame_size
;
2027 u
->fragment_size
= frag_size
= (size_t) (period_frames
* frame_size
);
2028 u
->hwbuf_size
= buffer_size
= (size_t) (buffer_frames
* frame_size
);
2029 pa_cvolume_mute(&u
->hardware_volume
, u
->sink
->sample_spec
.channels
);
2031 pa_log_info("Using %0.1f fragments of size %lu bytes (%0.2fms), buffer size is %lu bytes (%0.2fms)",
2032 (double) u
->hwbuf_size
/ (double) u
->fragment_size
,
2033 (long unsigned) u
->fragment_size
,
2034 (double) pa_bytes_to_usec(u
->fragment_size
, &ss
) / PA_USEC_PER_MSEC
,
2035 (long unsigned) u
->hwbuf_size
,
2036 (double) pa_bytes_to_usec(u
->hwbuf_size
, &ss
) / PA_USEC_PER_MSEC
);
2038 pa_sink_set_max_request(u
->sink
, u
->hwbuf_size
);
2039 if (pa_alsa_pcm_is_hw(u
->pcm_handle
))
2040 pa_sink_set_max_rewind(u
->sink
, u
->hwbuf_size
);
2042 pa_log_info("Disabling rewind for device %s", u
->device_name
);
2043 pa_sink_set_max_rewind(u
->sink
, 0);
2046 if (u
->use_tsched
) {
2047 u
->tsched_watermark
= pa_usec_to_bytes_round_up(pa_bytes_to_usec_round_up(tsched_watermark
, &requested_ss
), &u
->sink
->sample_spec
);
2049 u
->watermark_inc_step
= pa_usec_to_bytes(TSCHED_WATERMARK_INC_STEP_USEC
, &u
->sink
->sample_spec
);
2050 u
->watermark_dec_step
= pa_usec_to_bytes(TSCHED_WATERMARK_DEC_STEP_USEC
, &u
->sink
->sample_spec
);
2052 u
->watermark_inc_threshold
= pa_usec_to_bytes_round_up(TSCHED_WATERMARK_INC_THRESHOLD_USEC
, &u
->sink
->sample_spec
);
2053 u
->watermark_dec_threshold
= pa_usec_to_bytes_round_up(TSCHED_WATERMARK_DEC_THRESHOLD_USEC
, &u
->sink
->sample_spec
);
2055 fix_min_sleep_wakeup(u
);
2056 fix_tsched_watermark(u
);
2058 pa_sink_set_latency_range(u
->sink
,
2060 pa_bytes_to_usec(u
->hwbuf_size
, &ss
));
2062 pa_log_info("Time scheduling watermark is %0.2fms",
2063 (double) pa_bytes_to_usec(u
->tsched_watermark
, &ss
) / PA_USEC_PER_MSEC
);
2065 pa_sink_set_fixed_latency(u
->sink
, pa_bytes_to_usec(u
->hwbuf_size
, &ss
));
2069 if (update_sw_params(u
) < 0)
2072 if (setup_mixer(u
, ignore_dB
, sync_volume
) < 0)
2075 pa_alsa_dump(PA_LOG_DEBUG
, u
->pcm_handle
);
2077 if (!(u
->thread
= pa_thread_new("alsa-sink", thread_func
, u
))) {
2078 pa_log("Failed to create thread.");
2082 /* Get initial mixer settings */
2083 if (data
.volume_is_set
) {
2084 if (u
->sink
->set_volume
)
2085 u
->sink
->set_volume(u
->sink
);
2087 if (u
->sink
->get_volume
)
2088 u
->sink
->get_volume(u
->sink
);
2091 if (data
.muted_is_set
) {
2092 if (u
->sink
->set_mute
)
2093 u
->sink
->set_mute(u
->sink
);
2095 if (u
->sink
->get_mute
)
2096 u
->sink
->get_mute(u
->sink
);
2099 pa_sink_put(u
->sink
);
2102 pa_alsa_profile_set_free(profile_set
);
2112 pa_alsa_profile_set_free(profile_set
);
2117 static void userdata_free(struct userdata
*u
) {
2121 pa_sink_unlink(u
->sink
);
2124 pa_asyncmsgq_send(u
->thread_mq
.inq
, NULL
, PA_MESSAGE_SHUTDOWN
, NULL
, 0, NULL
);
2125 pa_thread_free(u
->thread
);
2128 pa_thread_mq_done(&u
->thread_mq
);
2131 pa_sink_unref(u
->sink
);
2133 if (u
->memchunk
.memblock
)
2134 pa_memblock_unref(u
->memchunk
.memblock
);
2137 pa_alsa_mixer_pdata_free(u
->mixer_pd
);
2139 if (u
->alsa_rtpoll_item
)
2140 pa_rtpoll_item_free(u
->alsa_rtpoll_item
);
2143 pa_rtpoll_free(u
->rtpoll
);
2145 if (u
->pcm_handle
) {
2146 snd_pcm_drop(u
->pcm_handle
);
2147 snd_pcm_close(u
->pcm_handle
);
2151 pa_alsa_fdlist_free(u
->mixer_fdl
);
2153 if (u
->mixer_path_set
)
2154 pa_alsa_path_set_free(u
->mixer_path_set
);
2155 else if (u
->mixer_path
)
2156 pa_alsa_path_free(u
->mixer_path
);
2158 if (u
->mixer_handle
)
2159 snd_mixer_close(u
->mixer_handle
);
2162 pa_smoother_free(u
->smoother
);
2167 pa_xfree(u
->device_name
);
2168 pa_xfree(u
->control_device
);
2172 void pa_alsa_sink_free(pa_sink
*s
) {
2175 pa_sink_assert_ref(s
);
2176 pa_assert_se(u
= s
->userdata
);