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 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/xmalloc.h>
36 #include <pulse/util.h>
37 #include <pulse/timeval.h>
38 #include <pulse/i18n.h>
40 #include <pulsecore/core-error.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-util.h>
47 #include <pulsecore/sample-util.h>
48 #include <pulsecore/log.h>
49 #include <pulsecore/macro.h>
50 #include <pulsecore/thread.h>
51 #include <pulsecore/core-error.h>
52 #include <pulsecore/thread-mq.h>
53 #include <pulsecore/rtpoll.h>
54 #include <pulsecore/time-smoother.h>
55 #include <pulsecore/rtclock.h>
57 #include <modules/reserve-wrap.h>
59 #include "alsa-util.h"
60 #include "alsa-source.h"
62 /* #define DEBUG_TIMING */
64 #define DEFAULT_DEVICE "default"
65 #define DEFAULT_TSCHED_BUFFER_USEC (2*PA_USEC_PER_SEC) /* 2s */
66 #define DEFAULT_TSCHED_WATERMARK_USEC (20*PA_USEC_PER_MSEC) /* 20ms */
67 #define TSCHED_WATERMARK_STEP_USEC (10*PA_USEC_PER_MSEC) /* 10ms */
68 #define TSCHED_MIN_SLEEP_USEC (10*PA_USEC_PER_MSEC) /* 10ms */
69 #define TSCHED_MIN_WAKEUP_USEC (4*PA_USEC_PER_MSEC) /* 4ms */
77 pa_thread_mq thread_mq
;
80 snd_pcm_t
*pcm_handle
;
82 pa_alsa_fdlist
*mixer_fdl
;
83 snd_mixer_t
*mixer_handle
;
84 snd_mixer_elem_t
*mixer_elem
;
85 long hw_volume_max
, hw_volume_min
;
86 long hw_dB_max
, hw_dB_min
;
87 pa_bool_t hw_dB_supported
:1;
88 pa_bool_t mixer_seperate_channels
:1;
90 pa_cvolume hardware_volume
;
106 pa_bool_t use_mmap
:1, use_tsched
:1;
108 pa_rtpoll_item
*alsa_rtpoll_item
;
110 snd_mixer_selem_channel_id_t mixer_map
[SND_MIXER_SCHN_LAST
];
112 pa_smoother
*smoother
;
115 pa_reserve_wrapper
*reserve
;
116 pa_hook_slot
*reserve_slot
;
119 static void userdata_free(struct userdata
*u
);
121 static pa_hook_result_t
reserve_cb(pa_reserve_wrapper
*r
, void *forced
, struct userdata
*u
) {
125 if (pa_source_suspend(u
->source
, TRUE
) < 0)
126 return PA_HOOK_CANCEL
;
131 static void reserve_done(struct userdata
*u
) {
134 if (u
->reserve_slot
) {
135 pa_hook_slot_free(u
->reserve_slot
);
136 u
->reserve_slot
= NULL
;
140 pa_reserve_wrapper_unref(u
->reserve
);
145 static void reserve_update(struct userdata
*u
) {
146 const char *description
;
152 if ((description
= pa_proplist_gets(u
->source
->proplist
, PA_PROP_DEVICE_DESCRIPTION
)))
153 pa_reserve_wrapper_set_application_device_name(u
->reserve
, description
);
156 static int reserve_init(struct userdata
*u
, const char *dname
) {
165 /* We are resuming, try to lock the device */
166 if (!(rname
= pa_alsa_get_reserve_name(dname
)))
169 u
->reserve
= pa_reserve_wrapper_get(u
->core
, rname
);
177 pa_assert(!u
->reserve_slot
);
178 u
->reserve_slot
= pa_hook_connect(pa_reserve_wrapper_hook(u
->reserve
), PA_HOOK_NORMAL
, (pa_hook_cb_t
) reserve_cb
, u
);
183 static void fix_min_sleep_wakeup(struct userdata
*u
) {
184 size_t max_use
, max_use_2
;
187 max_use
= u
->hwbuf_size
- u
->hwbuf_unused
;
188 max_use_2
= pa_frame_align(max_use
/2, &u
->source
->sample_spec
);
190 u
->min_sleep
= pa_usec_to_bytes(TSCHED_MIN_SLEEP_USEC
, &u
->source
->sample_spec
);
191 u
->min_sleep
= PA_CLAMP(u
->min_sleep
, u
->frame_size
, max_use_2
);
193 u
->min_wakeup
= pa_usec_to_bytes(TSCHED_MIN_WAKEUP_USEC
, &u
->source
->sample_spec
);
194 u
->min_wakeup
= PA_CLAMP(u
->min_wakeup
, u
->frame_size
, max_use_2
);
197 static void fix_tsched_watermark(struct userdata
*u
) {
201 max_use
= u
->hwbuf_size
- u
->hwbuf_unused
;
203 if (u
->tsched_watermark
> max_use
- u
->min_sleep
)
204 u
->tsched_watermark
= max_use
- u
->min_sleep
;
206 if (u
->tsched_watermark
< u
->min_wakeup
)
207 u
->tsched_watermark
= u
->min_wakeup
;
210 static void adjust_after_overrun(struct userdata
*u
) {
211 size_t old_watermark
;
212 pa_usec_t old_min_latency
, new_min_latency
;
215 pa_assert(u
->use_tsched
);
217 /* First, just try to increase the watermark */
218 old_watermark
= u
->tsched_watermark
;
219 u
->tsched_watermark
= PA_MIN(u
->tsched_watermark
* 2, u
->tsched_watermark
+ u
->watermark_step
);
221 fix_tsched_watermark(u
);
223 if (old_watermark
!= u
->tsched_watermark
) {
224 pa_log_notice("Increasing wakeup watermark to %0.2f ms",
225 (double) pa_bytes_to_usec(u
->tsched_watermark
, &u
->source
->sample_spec
) / PA_USEC_PER_MSEC
);
229 /* Hmm, we cannot increase the watermark any further, hence let's raise the latency */
230 old_min_latency
= u
->source
->thread_info
.min_latency
;
231 new_min_latency
= PA_MIN(old_min_latency
* 2, old_min_latency
+ TSCHED_WATERMARK_STEP_USEC
);
232 new_min_latency
= PA_MIN(new_min_latency
, u
->source
->thread_info
.max_latency
);
234 if (old_min_latency
!= new_min_latency
) {
235 pa_log_notice("Increasing minimal latency to %0.2f ms",
236 (double) new_min_latency
/ PA_USEC_PER_MSEC
);
238 pa_source_update_latency_range(u
->source
, new_min_latency
, u
->source
->thread_info
.max_latency
);
242 /* When we reach this we're officialy fucked! */
245 static pa_usec_t
hw_sleep_time(struct userdata
*u
, pa_usec_t
*sleep_usec
, pa_usec_t
*process_usec
) {
250 usec
= pa_source_get_requested_latency_within_thread(u
->source
);
252 if (usec
== (pa_usec_t
) -1)
253 usec
= pa_bytes_to_usec(u
->hwbuf_size
, &u
->source
->sample_spec
);
255 wm
= pa_bytes_to_usec(u
->tsched_watermark
, &u
->source
->sample_spec
);
260 *sleep_usec
= usec
- wm
;
264 pa_log_debug("Buffer time: %lu ms; Sleep time: %lu ms; Process time: %lu ms",
265 (unsigned long) (usec
/ PA_USEC_PER_MSEC
),
266 (unsigned long) (*sleep_usec
/ PA_USEC_PER_MSEC
),
267 (unsigned long) (*process_usec
/ PA_USEC_PER_MSEC
));
273 static int try_recover(struct userdata
*u
, const char *call
, int err
) {
278 pa_log_debug("%s: %s", call
, snd_strerror(err
));
280 pa_assert(err
!= -EAGAIN
);
283 pa_log_debug("%s: Buffer overrun!", call
);
285 if ((err
= snd_pcm_recover(u
->pcm_handle
, err
, 1)) < 0) {
286 pa_log("%s: %s", call
, snd_strerror(err
));
290 snd_pcm_start(u
->pcm_handle
);
294 static size_t check_left_to_record(struct userdata
*u
, size_t n_bytes
) {
295 size_t left_to_record
;
296 size_t rec_space
= u
->hwbuf_size
- u
->hwbuf_unused
;
298 /* We use <= instead of < for this check here because an overrun
299 * only happens after the last sample was processed, not already when
300 * it is removed from the buffer. This is particularly important
301 * when block transfer is used. */
303 if (n_bytes
<= rec_space
) {
304 left_to_record
= rec_space
- n_bytes
;
307 pa_log_debug("%0.2f ms left to record", (double) pa_bytes_to_usec(left_to_record
, &u
->source
->sample_spec
) / PA_USEC_PER_MSEC
);
317 if (pa_log_ratelimit())
318 pa_log_info("Overrun!");
321 adjust_after_overrun(u
);
324 return left_to_record
;
327 static int mmap_read(struct userdata
*u
, pa_usec_t
*sleep_usec
, pa_bool_t polled
) {
328 pa_bool_t work_done
= FALSE
;
329 pa_usec_t max_sleep_usec
= 0, process_usec
= 0;
330 size_t left_to_record
;
334 pa_source_assert_ref(u
->source
);
337 hw_sleep_time(u
, &max_sleep_usec
, &process_usec
);
344 if (PA_UNLIKELY((n
= pa_alsa_safe_avail(u
->pcm_handle
, u
->hwbuf_size
, &u
->source
->sample_spec
)) < 0)) {
346 if ((r
= try_recover(u
, "snd_pcm_avail", (int) n
)) == 0)
352 n_bytes
= (size_t) n
* u
->frame_size
;
355 pa_log_debug("avail: %lu", (unsigned long) n_bytes
);
358 left_to_record
= check_left_to_record(u
, n_bytes
);
362 pa_bytes_to_usec(left_to_record
, &u
->source
->sample_spec
) > process_usec
+max_sleep_usec
/2) {
364 pa_log_debug("Not reading, because too early.");
369 if (PA_UNLIKELY(n_bytes
<= 0)) {
373 char *dn
= pa_alsa_get_driver_name_by_pcm(u
->pcm_handle
);
374 pa_log(_("ALSA woke us up to read new data from the device, but there was actually nothing to read!\n"
375 "Most likely this is a bug in the ALSA driver '%s'. Please report this issue to the ALSA developers.\n"
376 "We were woken up with POLLIN set -- however a subsequent snd_pcm_avail() returned 0 or another value < min_avail."),
382 pa_log_debug("Not reading, because not necessary.");
389 pa_log_debug("Not filling up, because already too many iterations.");
398 pa_log_debug("Reading");
403 const snd_pcm_channel_area_t
*areas
;
404 snd_pcm_uframes_t offset
, frames
;
407 snd_pcm_sframes_t sframes
;
409 frames
= (snd_pcm_uframes_t
) (n_bytes
/ u
->frame_size
);
411 /* pa_log_debug("%lu frames to read", (unsigned long) frames); */
413 if (PA_UNLIKELY((err
= pa_alsa_safe_mmap_begin(u
->pcm_handle
, &areas
, &offset
, &frames
, u
->hwbuf_size
, &u
->source
->sample_spec
)) < 0)) {
415 if ((r
= try_recover(u
, "snd_pcm_mmap_begin", err
)) == 0)
421 /* Make sure that if these memblocks need to be copied they will fit into one slot */
422 if (frames
> pa_mempool_block_size_max(u
->source
->core
->mempool
)/u
->frame_size
)
423 frames
= pa_mempool_block_size_max(u
->source
->core
->mempool
)/u
->frame_size
;
425 /* Check these are multiples of 8 bit */
426 pa_assert((areas
[0].first
& 7) == 0);
427 pa_assert((areas
[0].step
& 7)== 0);
429 /* We assume a single interleaved memory buffer */
430 pa_assert((areas
[0].first
>> 3) == 0);
431 pa_assert((areas
[0].step
>> 3) == u
->frame_size
);
433 p
= (uint8_t*) areas
[0].addr
+ (offset
* u
->frame_size
);
435 chunk
.memblock
= pa_memblock_new_fixed(u
->core
->mempool
, p
, frames
* u
->frame_size
, TRUE
);
436 chunk
.length
= pa_memblock_get_length(chunk
.memblock
);
439 pa_source_post(u
->source
, &chunk
);
440 pa_memblock_unref_fixed(chunk
.memblock
);
442 if (PA_UNLIKELY((sframes
= snd_pcm_mmap_commit(u
->pcm_handle
, offset
, frames
)) < 0)) {
444 if ((r
= try_recover(u
, "snd_pcm_mmap_commit", (int) sframes
)) == 0)
452 u
->read_count
+= frames
* u
->frame_size
;
455 pa_log_debug("Read %lu bytes", (unsigned long) (frames
* u
->frame_size
));
458 if ((size_t) frames
* u
->frame_size
>= n_bytes
)
461 n_bytes
-= (size_t) frames
* u
->frame_size
;
465 *sleep_usec
= pa_bytes_to_usec(left_to_record
, &u
->source
->sample_spec
) - process_usec
;
466 return work_done
? 1 : 0;
469 static int unix_read(struct userdata
*u
, pa_usec_t
*sleep_usec
, pa_bool_t polled
) {
470 int work_done
= FALSE
;
471 pa_usec_t max_sleep_usec
= 0, process_usec
= 0;
472 size_t left_to_record
;
476 pa_source_assert_ref(u
->source
);
479 hw_sleep_time(u
, &max_sleep_usec
, &process_usec
);
486 if (PA_UNLIKELY((n
= pa_alsa_safe_avail(u
->pcm_handle
, u
->hwbuf_size
, &u
->source
->sample_spec
)) < 0)) {
488 if ((r
= try_recover(u
, "snd_pcm_avail", (int) n
)) == 0)
494 n_bytes
= (size_t) n
* u
->frame_size
;
495 left_to_record
= check_left_to_record(u
, n_bytes
);
499 pa_bytes_to_usec(left_to_record
, &u
->source
->sample_spec
) > process_usec
+max_sleep_usec
/2)
502 if (PA_UNLIKELY(n_bytes
<= 0)) {
506 char *dn
= pa_alsa_get_driver_name_by_pcm(u
->pcm_handle
);
507 pa_log(_("ALSA woke us up to read new data from the device, but there was actually nothing to read!\n"
508 "Most likely this is a bug in the ALSA driver '%s'. Please report this issue to the ALSA developers.\n"
509 "We were woken up with POLLIN set -- however a subsequent snd_pcm_avail() returned 0 or another value < min_avail."),
519 pa_log_debug("Not filling up, because already too many iterations.");
529 snd_pcm_sframes_t frames
;
532 chunk
.memblock
= pa_memblock_new(u
->core
->mempool
, (size_t) -1);
534 frames
= (snd_pcm_sframes_t
) (pa_memblock_get_length(chunk
.memblock
) / u
->frame_size
);
536 if (frames
> (snd_pcm_sframes_t
) (n_bytes
/u
->frame_size
))
537 frames
= (snd_pcm_sframes_t
) (n_bytes
/u
->frame_size
);
539 /* pa_log_debug("%lu frames to read", (unsigned long) n); */
541 p
= pa_memblock_acquire(chunk
.memblock
);
542 frames
= snd_pcm_readi(u
->pcm_handle
, (uint8_t*) p
, (snd_pcm_uframes_t
) frames
);
543 pa_memblock_release(chunk
.memblock
);
545 pa_assert(frames
!= 0);
547 if (PA_UNLIKELY(frames
< 0)) {
548 pa_memblock_unref(chunk
.memblock
);
550 if ((r
= try_recover(u
, "snd_pcm_readi", (int) (frames
))) == 0)
557 chunk
.length
= (size_t) frames
* u
->frame_size
;
559 pa_source_post(u
->source
, &chunk
);
560 pa_memblock_unref(chunk
.memblock
);
564 u
->read_count
+= frames
* u
->frame_size
;
566 /* pa_log_debug("read %lu frames", (unsigned long) frames); */
568 if ((size_t) frames
* u
->frame_size
>= n_bytes
)
571 n_bytes
-= (size_t) frames
* u
->frame_size
;
575 *sleep_usec
= pa_bytes_to_usec(left_to_record
, &u
->source
->sample_spec
) - process_usec
;
576 return work_done
? 1 : 0;
579 static void update_smoother(struct userdata
*u
) {
580 snd_pcm_sframes_t delay
= 0;
583 pa_usec_t now1
= 0, now2
;
584 snd_pcm_status_t
*status
;
586 snd_pcm_status_alloca(&status
);
589 pa_assert(u
->pcm_handle
);
591 /* Let's update the time smoother */
593 if (PA_UNLIKELY((err
= pa_alsa_safe_delay(u
->pcm_handle
, &delay
, u
->hwbuf_size
, &u
->source
->sample_spec
)) < 0)) {
594 pa_log_warn("Failed to get delay: %s", snd_strerror(err
));
598 if (PA_UNLIKELY((err
= snd_pcm_status(u
->pcm_handle
, status
)) < 0))
599 pa_log_warn("Failed to get timestamp: %s", snd_strerror(err
));
601 snd_htimestamp_t htstamp
= { 0, 0 };
602 snd_pcm_status_get_htstamp(status
, &htstamp
);
603 now1
= pa_timespec_load(&htstamp
);
606 position
= u
->read_count
+ ((uint64_t) delay
* (uint64_t) u
->frame_size
);
608 /* Hmm, if the timestamp is 0, then it wasn't set and we take the current time */
610 now1
= pa_rtclock_usec();
612 now2
= pa_bytes_to_usec(position
, &u
->source
->sample_spec
);
614 pa_smoother_put(u
->smoother
, now1
, now2
);
617 static pa_usec_t
source_get_latency(struct userdata
*u
) {
619 pa_usec_t now1
, now2
;
623 now1
= pa_rtclock_usec();
624 now2
= pa_smoother_get(u
->smoother
, now1
);
626 delay
= (int64_t) now2
- (int64_t) pa_bytes_to_usec(u
->read_count
, &u
->source
->sample_spec
);
628 return delay
>= 0 ? (pa_usec_t
) delay
: 0;
631 static int build_pollfd(struct userdata
*u
) {
633 pa_assert(u
->pcm_handle
);
635 if (u
->alsa_rtpoll_item
)
636 pa_rtpoll_item_free(u
->alsa_rtpoll_item
);
638 if (!(u
->alsa_rtpoll_item
= pa_alsa_build_pollfd(u
->pcm_handle
, u
->rtpoll
)))
644 static int suspend(struct userdata
*u
) {
646 pa_assert(u
->pcm_handle
);
648 pa_smoother_pause(u
->smoother
, pa_rtclock_usec());
651 snd_pcm_close(u
->pcm_handle
);
652 u
->pcm_handle
= NULL
;
654 if (u
->alsa_rtpoll_item
) {
655 pa_rtpoll_item_free(u
->alsa_rtpoll_item
);
656 u
->alsa_rtpoll_item
= NULL
;
659 pa_log_info("Device suspended...");
664 static int update_sw_params(struct userdata
*u
) {
665 snd_pcm_uframes_t avail_min
;
670 /* Use the full buffer if noone asked us for anything specific */
676 if ((latency
= pa_source_get_requested_latency_within_thread(u
->source
)) != (pa_usec_t
) -1) {
679 pa_log_debug("latency set to %0.2fms", (double) latency
/ PA_USEC_PER_MSEC
);
681 b
= pa_usec_to_bytes(latency
, &u
->source
->sample_spec
);
683 /* We need at least one sample in our buffer */
685 if (PA_UNLIKELY(b
< u
->frame_size
))
688 u
->hwbuf_unused
= PA_LIKELY(b
< u
->hwbuf_size
) ? (u
->hwbuf_size
- b
) : 0;
691 fix_min_sleep_wakeup(u
);
692 fix_tsched_watermark(u
);
695 pa_log_debug("hwbuf_unused=%lu", (unsigned long) u
->hwbuf_unused
);
700 pa_usec_t sleep_usec
, process_usec
;
702 hw_sleep_time(u
, &sleep_usec
, &process_usec
);
703 avail_min
+= pa_usec_to_bytes(sleep_usec
, &u
->source
->sample_spec
) / u
->frame_size
;
706 pa_log_debug("setting avail_min=%lu", (unsigned long) avail_min
);
708 if ((err
= pa_alsa_set_sw_params(u
->pcm_handle
, avail_min
)) < 0) {
709 pa_log("Failed to set software parameters: %s", snd_strerror(err
));
716 static int unsuspend(struct userdata
*u
) {
721 snd_pcm_uframes_t period_size
;
724 pa_assert(!u
->pcm_handle
);
726 pa_log_info("Trying resume...");
728 snd_config_update_free_global();
730 if ((err
= snd_pcm_open(&u
->pcm_handle
, u
->device_name
, SND_PCM_STREAM_CAPTURE
,
731 /*SND_PCM_NONBLOCK|*/
732 SND_PCM_NO_AUTO_RESAMPLE
|
733 SND_PCM_NO_AUTO_CHANNELS
|
734 SND_PCM_NO_AUTO_FORMAT
)) < 0) {
735 pa_log("Error opening PCM device %s: %s", u
->device_name
, snd_strerror(err
));
739 ss
= u
->source
->sample_spec
;
740 nfrags
= u
->nfragments
;
741 period_size
= u
->fragment_size
/ u
->frame_size
;
745 if ((err
= pa_alsa_set_hw_params(u
->pcm_handle
, &ss
, &nfrags
, &period_size
, u
->hwbuf_size
/ u
->frame_size
, &b
, &d
, TRUE
)) < 0) {
746 pa_log("Failed to set hardware parameters: %s", snd_strerror(err
));
750 if (b
!= u
->use_mmap
|| d
!= u
->use_tsched
) {
751 pa_log_warn("Resume failed, couldn't get original access mode.");
755 if (!pa_sample_spec_equal(&ss
, &u
->source
->sample_spec
)) {
756 pa_log_warn("Resume failed, couldn't restore original sample settings.");
760 if (nfrags
!= u
->nfragments
|| period_size
*u
->frame_size
!= u
->fragment_size
) {
761 pa_log_warn("Resume failed, couldn't restore original fragment settings. (Old: %lu*%lu, New %lu*%lu)",
762 (unsigned long) u
->nfragments
, (unsigned long) u
->fragment_size
,
763 (unsigned long) nfrags
, period_size
* u
->frame_size
);
767 if (update_sw_params(u
) < 0)
770 if (build_pollfd(u
) < 0)
773 /* FIXME: We need to reload the volume somehow */
775 snd_pcm_start(u
->pcm_handle
);
776 pa_smoother_resume(u
->smoother
, pa_rtclock_usec());
778 pa_log_info("Resumed successfully...");
784 snd_pcm_close(u
->pcm_handle
);
785 u
->pcm_handle
= NULL
;
791 static int source_process_msg(pa_msgobject
*o
, int code
, void *data
, int64_t offset
, pa_memchunk
*chunk
) {
792 struct userdata
*u
= PA_SOURCE(o
)->userdata
;
796 case PA_SOURCE_MESSAGE_GET_LATENCY
: {
800 r
= source_get_latency(u
);
802 *((pa_usec_t
*) data
) = r
;
807 case PA_SOURCE_MESSAGE_SET_STATE
:
809 switch ((pa_source_state_t
) PA_PTR_TO_UINT(data
)) {
811 case PA_SOURCE_SUSPENDED
:
812 pa_assert(PA_SOURCE_IS_OPENED(u
->source
->thread_info
.state
));
820 case PA_SOURCE_RUNNING
:
822 if (u
->source
->thread_info
.state
== PA_SOURCE_INIT
) {
823 if (build_pollfd(u
) < 0)
826 snd_pcm_start(u
->pcm_handle
);
829 if (u
->source
->thread_info
.state
== PA_SOURCE_SUSPENDED
) {
830 if (unsuspend(u
) < 0)
836 case PA_SOURCE_UNLINKED
:
838 case PA_SOURCE_INVALID_STATE
:
845 return pa_source_process_msg(o
, code
, data
, offset
, chunk
);
848 /* Called from main context */
849 static int source_set_state_cb(pa_source
*s
, pa_source_state_t new_state
) {
850 pa_source_state_t old_state
;
853 pa_source_assert_ref(s
);
854 pa_assert_se(u
= s
->userdata
);
856 old_state
= pa_source_get_state(u
->source
);
858 if (PA_SINK_IS_OPENED(old_state
) && new_state
== PA_SINK_SUSPENDED
)
860 else if (old_state
== PA_SINK_SUSPENDED
&& PA_SINK_IS_OPENED(new_state
))
861 if (reserve_init(u
, u
->device_name
) < 0)
867 static int mixer_callback(snd_mixer_elem_t
*elem
, unsigned int mask
) {
868 struct userdata
*u
= snd_mixer_elem_get_callback_private(elem
);
871 pa_assert(u
->mixer_handle
);
873 if (mask
== SND_CTL_EVENT_MASK_REMOVE
)
876 if (mask
& SND_CTL_EVENT_MASK_VALUE
) {
877 pa_source_get_volume(u
->source
, TRUE
);
878 pa_source_get_mute(u
->source
, TRUE
);
884 static pa_volume_t
from_alsa_volume(struct userdata
*u
, long alsa_vol
) {
886 return (pa_volume_t
) round(((double) (alsa_vol
- u
->hw_volume_min
) * PA_VOLUME_NORM
) /
887 (double) (u
->hw_volume_max
- u
->hw_volume_min
));
890 static long to_alsa_volume(struct userdata
*u
, pa_volume_t vol
) {
893 alsa_vol
= (long) round(((double) vol
* (double) (u
->hw_volume_max
- u
->hw_volume_min
))
894 / PA_VOLUME_NORM
) + u
->hw_volume_min
;
896 return PA_CLAMP_UNLIKELY(alsa_vol
, u
->hw_volume_min
, u
->hw_volume_max
);
899 static void source_get_volume_cb(pa_source
*s
) {
900 struct userdata
*u
= s
->userdata
;
904 char t
[PA_CVOLUME_SNPRINT_MAX
];
907 pa_assert(u
->mixer_elem
);
909 if (u
->mixer_seperate_channels
) {
911 r
.channels
= s
->sample_spec
.channels
;
913 for (i
= 0; i
< s
->sample_spec
.channels
; i
++) {
916 if (u
->hw_dB_supported
) {
918 if ((err
= snd_mixer_selem_get_capture_dB(u
->mixer_elem
, u
->mixer_map
[i
], &alsa_vol
)) < 0)
921 #ifdef HAVE_VALGRIND_MEMCHECK_H
922 VALGRIND_MAKE_MEM_DEFINED(&alsa_vol
, sizeof(alsa_vol
));
925 r
.values
[i
] = pa_sw_volume_from_dB((double) (alsa_vol
- u
->hw_dB_max
) / 100.0);
928 if ((err
= snd_mixer_selem_get_capture_volume(u
->mixer_elem
, u
->mixer_map
[i
], &alsa_vol
)) < 0)
931 r
.values
[i
] = from_alsa_volume(u
, alsa_vol
);
938 if (u
->hw_dB_supported
) {
940 if ((err
= snd_mixer_selem_get_capture_dB(u
->mixer_elem
, SND_MIXER_SCHN_MONO
, &alsa_vol
)) < 0)
943 #ifdef HAVE_VALGRIND_MEMCHECK_H
944 VALGRIND_MAKE_MEM_DEFINED(&alsa_vol
, sizeof(alsa_vol
));
947 pa_cvolume_set(&r
, s
->sample_spec
.channels
, pa_sw_volume_from_dB((double) (alsa_vol
- u
->hw_dB_max
) / 100.0));
951 if ((err
= snd_mixer_selem_get_capture_volume(u
->mixer_elem
, SND_MIXER_SCHN_MONO
, &alsa_vol
)) < 0)
954 pa_cvolume_set(&r
, s
->sample_spec
.channels
, from_alsa_volume(u
, alsa_vol
));
958 pa_log_debug("Read hardware volume: %s", pa_cvolume_snprint(t
, sizeof(t
), &r
));
960 if (!pa_cvolume_equal(&u
->hardware_volume
, &r
)) {
962 s
->virtual_volume
= u
->hardware_volume
= r
;
964 if (u
->hw_dB_supported
) {
967 /* Hmm, so the hardware volume changed, let's reset our software volume */
968 pa_cvolume_reset(&reset
, s
->sample_spec
.channels
);
969 pa_source_set_soft_volume(s
, &reset
);
976 pa_log_error("Unable to read volume: %s", snd_strerror(err
));
979 static void source_set_volume_cb(pa_source
*s
) {
980 struct userdata
*u
= s
->userdata
;
986 pa_assert(u
->mixer_elem
);
988 if (u
->mixer_seperate_channels
) {
990 r
.channels
= s
->sample_spec
.channels
;
992 for (i
= 0; i
< s
->sample_spec
.channels
; i
++) {
996 vol
= s
->virtual_volume
.values
[i
];
998 if (u
->hw_dB_supported
) {
1000 alsa_vol
= (long) (pa_sw_volume_to_dB(vol
) * 100);
1001 alsa_vol
+= u
->hw_dB_max
;
1002 alsa_vol
= PA_CLAMP_UNLIKELY(alsa_vol
, u
->hw_dB_min
, u
->hw_dB_max
);
1004 if ((err
= snd_mixer_selem_set_capture_dB(u
->mixer_elem
, u
->mixer_map
[i
], alsa_vol
, 1)) < 0)
1007 if ((err
= snd_mixer_selem_get_capture_dB(u
->mixer_elem
, u
->mixer_map
[i
], &alsa_vol
)) < 0)
1010 #ifdef HAVE_VALGRIND_MEMCHECK_H
1011 VALGRIND_MAKE_MEM_DEFINED(&alsa_vol
, sizeof(alsa_vol
));
1014 r
.values
[i
] = pa_sw_volume_from_dB((double) (alsa_vol
- u
->hw_dB_max
) / 100.0);
1017 alsa_vol
= to_alsa_volume(u
, vol
);
1019 if ((err
= snd_mixer_selem_set_capture_volume(u
->mixer_elem
, u
->mixer_map
[i
], alsa_vol
)) < 0)
1022 if ((err
= snd_mixer_selem_get_capture_volume(u
->mixer_elem
, u
->mixer_map
[i
], &alsa_vol
)) < 0)
1025 r
.values
[i
] = from_alsa_volume(u
, alsa_vol
);
1033 vol
= pa_cvolume_max(&s
->virtual_volume
);
1035 if (u
->hw_dB_supported
) {
1036 alsa_vol
= (long) (pa_sw_volume_to_dB(vol
) * 100);
1037 alsa_vol
+= u
->hw_dB_max
;
1038 alsa_vol
= PA_CLAMP_UNLIKELY(alsa_vol
, u
->hw_dB_min
, u
->hw_dB_max
);
1040 if ((err
= snd_mixer_selem_set_capture_dB_all(u
->mixer_elem
, alsa_vol
, 1)) < 0)
1043 if ((err
= snd_mixer_selem_get_capture_dB(u
->mixer_elem
, SND_MIXER_SCHN_MONO
, &alsa_vol
)) < 0)
1046 #ifdef HAVE_VALGRIND_MEMCHECK_H
1047 VALGRIND_MAKE_MEM_DEFINED(&alsa_vol
, sizeof(alsa_vol
));
1050 pa_cvolume_set(&r
, s
->sample_spec
.channels
, pa_sw_volume_from_dB((double) (alsa_vol
- u
->hw_dB_max
) / 100.0));
1053 alsa_vol
= to_alsa_volume(u
, vol
);
1055 if ((err
= snd_mixer_selem_set_capture_volume_all(u
->mixer_elem
, alsa_vol
)) < 0)
1058 if ((err
= snd_mixer_selem_get_capture_volume(u
->mixer_elem
, SND_MIXER_SCHN_MONO
, &alsa_vol
)) < 0)
1061 pa_cvolume_set(&r
, s
->sample_spec
.channels
, from_alsa_volume(u
, alsa_vol
));
1065 u
->hardware_volume
= r
;
1067 if (u
->hw_dB_supported
) {
1068 char t
[PA_CVOLUME_SNPRINT_MAX
];
1070 /* Match exactly what the user requested by software */
1072 pa_sw_cvolume_divide(&s
->soft_volume
, &s
->virtual_volume
, &u
->hardware_volume
);
1074 pa_log_debug("Requested volume: %s", pa_cvolume_snprint(t
, sizeof(t
), &s
->virtual_volume
));
1075 pa_log_debug("Got hardware volume: %s", pa_cvolume_snprint(t
, sizeof(t
), &u
->hardware_volume
));
1076 pa_log_debug("Calculated software volume: %s", pa_cvolume_snprint(t
, sizeof(t
), &s
->soft_volume
));
1080 /* We can't match exactly what the user requested, hence let's
1081 * at least tell the user about it */
1083 s
->virtual_volume
= r
;
1088 pa_log_error("Unable to set volume: %s", snd_strerror(err
));
1091 static void source_get_mute_cb(pa_source
*s
) {
1092 struct userdata
*u
= s
->userdata
;
1096 pa_assert(u
->mixer_elem
);
1098 if ((err
= snd_mixer_selem_get_capture_switch(u
->mixer_elem
, 0, &sw
)) < 0) {
1099 pa_log_error("Unable to get switch: %s", snd_strerror(err
));
1106 static void source_set_mute_cb(pa_source
*s
) {
1107 struct userdata
*u
= s
->userdata
;
1111 pa_assert(u
->mixer_elem
);
1113 if ((err
= snd_mixer_selem_set_capture_switch_all(u
->mixer_elem
, !s
->muted
)) < 0) {
1114 pa_log_error("Unable to set switch: %s", snd_strerror(err
));
1119 static void source_update_requested_latency_cb(pa_source
*s
) {
1120 struct userdata
*u
= s
->userdata
;
1126 update_sw_params(u
);
1129 static void thread_func(void *userdata
) {
1130 struct userdata
*u
= userdata
;
1131 unsigned short revents
= 0;
1135 pa_log_debug("Thread starting up");
1137 if (u
->core
->realtime_scheduling
)
1138 pa_make_realtime(u
->core
->realtime_priority
);
1140 pa_thread_mq_install(&u
->thread_mq
);
1141 pa_rtpoll_install(u
->rtpoll
);
1147 pa_log_debug("Loop");
1150 /* Read some data and pass it to the sources */
1151 if (PA_SOURCE_IS_OPENED(u
->source
->thread_info
.state
)) {
1153 pa_usec_t sleep_usec
= 0;
1156 work_done
= mmap_read(u
, &sleep_usec
, revents
& POLLIN
);
1158 work_done
= unix_read(u
, &sleep_usec
, revents
& POLLIN
);
1163 /* pa_log_debug("work_done = %i", work_done); */
1168 if (u
->use_tsched
) {
1171 /* OK, the capture buffer is now empty, let's
1172 * calculate when to wake up next */
1174 /* pa_log_debug("Waking up in %0.2fms (sound card clock).", (double) sleep_usec / PA_USEC_PER_MSEC); */
1176 /* Convert from the sound card time domain to the
1177 * system time domain */
1178 cusec
= pa_smoother_translate(u
->smoother
, pa_rtclock_usec(), sleep_usec
);
1180 /* pa_log_debug("Waking up in %0.2fms (system clock).", (double) cusec / PA_USEC_PER_MSEC); */
1182 /* We don't trust the conversion, so we wake up whatever comes first */
1183 pa_rtpoll_set_timer_relative(u
->rtpoll
, PA_MIN(sleep_usec
, cusec
));
1185 } else if (u
->use_tsched
)
1187 /* OK, we're in an invalid state, let's disable our timers */
1188 pa_rtpoll_set_timer_disabled(u
->rtpoll
);
1190 /* Hmm, nothing to do. Let's sleep */
1191 if ((ret
= pa_rtpoll_run(u
->rtpoll
, TRUE
)) < 0)
1197 /* Tell ALSA about this and process its response */
1198 if (PA_SOURCE_IS_OPENED(u
->source
->thread_info
.state
)) {
1199 struct pollfd
*pollfd
;
1203 pollfd
= pa_rtpoll_item_get_pollfd(u
->alsa_rtpoll_item
, &n
);
1205 if ((err
= snd_pcm_poll_descriptors_revents(u
->pcm_handle
, pollfd
, n
, &revents
)) < 0) {
1206 pa_log("snd_pcm_poll_descriptors_revents() failed: %s", snd_strerror(err
));
1210 if (revents
& ~POLLIN
) {
1211 if (pa_alsa_recover_from_poll(u
->pcm_handle
, revents
) < 0)
1214 snd_pcm_start(u
->pcm_handle
);
1215 } else if (revents
&& u
->use_tsched
&& pa_log_ratelimit())
1216 pa_log_debug("Wakeup from ALSA!");
1223 /* If this was no regular exit from the loop we have to continue
1224 * processing messages until we received PA_MESSAGE_SHUTDOWN */
1225 pa_asyncmsgq_post(u
->thread_mq
.outq
, PA_MSGOBJECT(u
->core
), PA_CORE_MESSAGE_UNLOAD_MODULE
, u
->module
, 0, NULL
, NULL
);
1226 pa_asyncmsgq_wait_for(u
->thread_mq
.inq
, PA_MESSAGE_SHUTDOWN
);
1229 pa_log_debug("Thread shutting down");
1232 static void set_source_name(pa_source_new_data
*data
, pa_modargs
*ma
, const char *device_id
, const char *device_name
) {
1238 pa_assert(device_name
);
1240 if ((n
= pa_modargs_get_value(ma
, "source_name", NULL
))) {
1241 pa_source_new_data_set_name(data
, n
);
1242 data
->namereg_fail
= TRUE
;
1246 if ((n
= pa_modargs_get_value(ma
, "name", NULL
)))
1247 data
->namereg_fail
= TRUE
;
1249 n
= device_id
? device_id
: device_name
;
1250 data
->namereg_fail
= FALSE
;
1253 t
= pa_sprintf_malloc("alsa_input.%s", n
);
1254 pa_source_new_data_set_name(data
, t
);
1258 static int setup_mixer(struct userdata
*u
, pa_bool_t ignore_dB
) {
1261 if (!u
->mixer_handle
)
1264 pa_assert(u
->mixer_elem
);
1266 if (snd_mixer_selem_has_capture_volume(u
->mixer_elem
)) {
1267 pa_bool_t suitable
= FALSE
;
1269 if (snd_mixer_selem_get_capture_volume_range(u
->mixer_elem
, &u
->hw_volume_min
, &u
->hw_volume_max
) < 0)
1270 pa_log_info("Failed to get volume range. Falling back to software volume control.");
1271 else if (u
->hw_volume_min
>= u
->hw_volume_max
)
1272 pa_log_warn("Your kernel driver is broken: it reports a volume range from %li to %li which makes no sense.", u
->hw_volume_min
, u
->hw_volume_max
);
1274 pa_log_info("Volume ranges from %li to %li.", u
->hw_volume_min
, u
->hw_volume_max
);
1279 if (ignore_dB
|| snd_mixer_selem_get_capture_dB_range(u
->mixer_elem
, &u
->hw_dB_min
, &u
->hw_dB_max
) < 0)
1280 pa_log_info("Mixer doesn't support dB information or data is ignored.");
1282 #ifdef HAVE_VALGRIND_MEMCHECK_H
1283 VALGRIND_MAKE_MEM_DEFINED(&u
->hw_dB_min
, sizeof(u
->hw_dB_min
));
1284 VALGRIND_MAKE_MEM_DEFINED(&u
->hw_dB_max
, sizeof(u
->hw_dB_max
));
1287 if (u
->hw_dB_min
>= u
->hw_dB_max
)
1288 pa_log_warn("Your kernel driver is broken: it reports a volume range from %0.2f dB to %0.2f dB which makes no sense.", (double) u
->hw_dB_min
/100.0, (double) u
->hw_dB_max
/100.0);
1290 pa_log_info("Volume ranges from %0.2f dB to %0.2f dB.", (double) u
->hw_dB_min
/100.0, (double) u
->hw_dB_max
/100.0);
1291 u
->hw_dB_supported
= TRUE
;
1293 if (u
->hw_dB_max
> 0) {
1294 u
->source
->base_volume
= pa_sw_volume_from_dB(- (double) u
->hw_dB_max
/100.0);
1295 pa_log_info("Fixing base volume to %0.2f dB", pa_sw_volume_to_dB(u
->source
->base_volume
));
1297 pa_log_info("No particular base volume set, fixing to 0 dB");
1301 if (!u
->hw_dB_supported
&&
1302 u
->hw_volume_max
- u
->hw_volume_min
< 3) {
1304 pa_log_info("Device has less than 4 volume levels. Falling back to software volume control.");
1310 u
->mixer_seperate_channels
= pa_alsa_calc_mixer_map(u
->mixer_elem
, &u
->source
->channel_map
, u
->mixer_map
, FALSE
) >= 0;
1312 u
->source
->get_volume
= source_get_volume_cb
;
1313 u
->source
->set_volume
= source_set_volume_cb
;
1314 u
->source
->flags
|= PA_SOURCE_HW_VOLUME_CTRL
| (u
->hw_dB_supported
? PA_SOURCE_DECIBEL_VOLUME
: 0);
1315 pa_log_info("Using hardware volume control. Hardware dB scale %s.", u
->hw_dB_supported
? "supported" : "not supported");
1317 if (!u
->hw_dB_supported
)
1318 u
->source
->n_volume_steps
= u
->hw_volume_max
- u
->hw_volume_min
+ 1;
1320 pa_log_info("Using software volume control.");
1323 if (snd_mixer_selem_has_capture_switch(u
->mixer_elem
)) {
1324 u
->source
->get_mute
= source_get_mute_cb
;
1325 u
->source
->set_mute
= source_set_mute_cb
;
1326 u
->source
->flags
|= PA_SOURCE_HW_MUTE_CTRL
;
1328 pa_log_info("Using software mute control.");
1330 u
->mixer_fdl
= pa_alsa_fdlist_new();
1332 if (pa_alsa_fdlist_set_mixer(u
->mixer_fdl
, u
->mixer_handle
, u
->core
->mainloop
) < 0) {
1333 pa_log("Failed to initialize file descriptor monitoring");
1337 snd_mixer_elem_set_callback(u
->mixer_elem
, mixer_callback
);
1338 snd_mixer_elem_set_callback_private(u
->mixer_elem
, u
);
1343 pa_source
*pa_alsa_source_new(pa_module
*m
, pa_modargs
*ma
, const char*driver
, pa_card
*card
, const pa_alsa_profile_info
*profile
) {
1345 struct userdata
*u
= NULL
;
1346 const char *dev_id
= NULL
;
1349 uint32_t nfrags
, hwbuf_size
, frag_size
, tsched_size
, tsched_watermark
;
1350 snd_pcm_uframes_t period_frames
, tsched_frames
;
1352 pa_bool_t use_mmap
= TRUE
, b
, use_tsched
= TRUE
, d
, ignore_dB
= FALSE
;
1353 pa_source_new_data data
;
1358 ss
= m
->core
->default_sample_spec
;
1359 map
= m
->core
->default_channel_map
;
1360 if (pa_modargs_get_sample_spec_and_channel_map(ma
, &ss
, &map
, PA_CHANNEL_MAP_ALSA
) < 0) {
1361 pa_log("Failed to parse sample specification");
1365 frame_size
= pa_frame_size(&ss
);
1367 nfrags
= m
->core
->default_n_fragments
;
1368 frag_size
= (uint32_t) pa_usec_to_bytes(m
->core
->default_fragment_size_msec
*PA_USEC_PER_MSEC
, &ss
);
1370 frag_size
= (uint32_t) frame_size
;
1371 tsched_size
= (uint32_t) pa_usec_to_bytes(DEFAULT_TSCHED_BUFFER_USEC
, &ss
);
1372 tsched_watermark
= (uint32_t) pa_usec_to_bytes(DEFAULT_TSCHED_WATERMARK_USEC
, &ss
);
1374 if (pa_modargs_get_value_u32(ma
, "fragments", &nfrags
) < 0 ||
1375 pa_modargs_get_value_u32(ma
, "fragment_size", &frag_size
) < 0 ||
1376 pa_modargs_get_value_u32(ma
, "tsched_buffer_size", &tsched_size
) < 0 ||
1377 pa_modargs_get_value_u32(ma
, "tsched_buffer_watermark", &tsched_watermark
) < 0) {
1378 pa_log("Failed to parse buffer metrics");
1382 hwbuf_size
= frag_size
* nfrags
;
1383 period_frames
= frag_size
/frame_size
;
1384 tsched_frames
= tsched_size
/frame_size
;
1386 if (pa_modargs_get_value_boolean(ma
, "mmap", &use_mmap
) < 0) {
1387 pa_log("Failed to parse mmap argument.");
1391 if (pa_modargs_get_value_boolean(ma
, "tsched", &use_tsched
) < 0) {
1392 pa_log("Failed to parse timer_scheduling argument.");
1396 if (pa_modargs_get_value_boolean(ma
, "ignore_dB", &ignore_dB
) < 0) {
1397 pa_log("Failed to parse ignore_dB argument.");
1401 if (use_tsched
&& !pa_rtclock_hrtimer()) {
1402 pa_log_notice("Disabling timer-based scheduling because high-resolution timers are not available from the kernel.");
1406 u
= pa_xnew0(struct userdata
, 1);
1409 u
->use_mmap
= use_mmap
;
1410 u
->use_tsched
= use_tsched
;
1411 u
->rtpoll
= pa_rtpoll_new();
1412 pa_thread_mq_init(&u
->thread_mq
, m
->core
->mainloop
, u
->rtpoll
);
1413 u
->alsa_rtpoll_item
= NULL
;
1415 u
->smoother
= pa_smoother_new(DEFAULT_TSCHED_WATERMARK_USEC
*2, DEFAULT_TSCHED_WATERMARK_USEC
*2, TRUE
, 5);
1416 pa_smoother_set_time_offset(u
->smoother
, pa_rtclock_usec());
1418 if (reserve_init(u
, pa_modargs_get_value(
1420 pa_modargs_get_value(ma
, "device", DEFAULT_DEVICE
))) < 0)
1428 if (!(dev_id
= pa_modargs_get_value(ma
, "device_id", NULL
))) {
1429 pa_log("device_id= not set");
1433 if (!(u
->pcm_handle
= pa_alsa_open_by_device_id_profile(
1437 SND_PCM_STREAM_CAPTURE
,
1438 &nfrags
, &period_frames
, tsched_frames
,
1442 } else if ((dev_id
= pa_modargs_get_value(ma
, "device_id", NULL
))) {
1444 if (!(u
->pcm_handle
= pa_alsa_open_by_device_id_auto(
1448 SND_PCM_STREAM_CAPTURE
,
1449 &nfrags
, &period_frames
, tsched_frames
,
1455 if (!(u
->pcm_handle
= pa_alsa_open_by_device_string(
1456 pa_modargs_get_value(ma
, "device", DEFAULT_DEVICE
),
1459 SND_PCM_STREAM_CAPTURE
,
1460 &nfrags
, &period_frames
, tsched_frames
,
1465 pa_assert(u
->device_name
);
1466 pa_log_info("Successfully opened device %s.", u
->device_name
);
1469 pa_log_info("Selected configuration '%s' (%s).", profile
->description
, profile
->name
);
1471 if (use_mmap
&& !b
) {
1472 pa_log_info("Device doesn't support mmap(), falling back to UNIX read/write mode.");
1473 u
->use_mmap
= use_mmap
= FALSE
;
1476 if (use_tsched
&& (!b
|| !d
)) {
1477 pa_log_info("Cannot enable timer-based scheduling, falling back to sound IRQ scheduling.");
1478 u
->use_tsched
= use_tsched
= FALSE
;
1482 pa_log_info("Successfully enabled mmap() mode.");
1485 pa_log_info("Successfully enabled timer-based scheduling mode.");
1487 /* ALSA might tweak the sample spec, so recalculate the frame size */
1488 frame_size
= pa_frame_size(&ss
);
1490 pa_alsa_find_mixer_and_elem(u
->pcm_handle
, &u
->mixer_handle
, &u
->mixer_elem
);
1492 pa_source_new_data_init(&data
);
1493 data
.driver
= driver
;
1496 set_source_name(&data
, ma
, dev_id
, u
->device_name
);
1497 pa_source_new_data_set_sample_spec(&data
, &ss
);
1498 pa_source_new_data_set_channel_map(&data
, &map
);
1500 pa_alsa_init_proplist_pcm(m
->core
, data
.proplist
, u
->pcm_handle
);
1501 pa_proplist_sets(data
.proplist
, PA_PROP_DEVICE_STRING
, u
->device_name
);
1502 pa_proplist_setf(data
.proplist
, PA_PROP_DEVICE_BUFFERING_BUFFER_SIZE
, "%lu", (unsigned long) (period_frames
* frame_size
* nfrags
));
1503 pa_proplist_setf(data
.proplist
, PA_PROP_DEVICE_BUFFERING_FRAGMENT_SIZE
, "%lu", (unsigned long) (period_frames
* frame_size
));
1504 pa_proplist_sets(data
.proplist
, PA_PROP_DEVICE_ACCESS_MODE
, u
->use_tsched
? "mmap+timer" : (u
->use_mmap
? "mmap" : "serial"));
1507 pa_proplist_sets(data
.proplist
, PA_PROP_DEVICE_PROFILE_NAME
, profile
->name
);
1508 pa_proplist_sets(data
.proplist
, PA_PROP_DEVICE_PROFILE_DESCRIPTION
, profile
->description
);
1511 u
->source
= pa_source_new(m
->core
, &data
, PA_SOURCE_HARDWARE
|PA_SOURCE_LATENCY
);
1512 pa_source_new_data_done(&data
);
1515 pa_log("Failed to create source object");
1519 u
->source
->parent
.process_msg
= source_process_msg
;
1520 u
->source
->update_requested_latency
= source_update_requested_latency_cb
;
1521 u
->source
->set_state
= source_set_state_cb
;
1522 u
->source
->userdata
= u
;
1524 pa_source_set_asyncmsgq(u
->source
, u
->thread_mq
.inq
);
1525 pa_source_set_rtpoll(u
->source
, u
->rtpoll
);
1527 u
->frame_size
= frame_size
;
1528 u
->fragment_size
= frag_size
= (uint32_t) (period_frames
* frame_size
);
1529 u
->nfragments
= nfrags
;
1530 u
->hwbuf_size
= u
->fragment_size
* nfrags
;
1531 u
->tsched_watermark
= tsched_watermark
;
1532 pa_cvolume_mute(&u
->hardware_volume
, u
->source
->sample_spec
.channels
);
1535 fix_min_sleep_wakeup(u
);
1536 fix_tsched_watermark(u
);
1538 u
->watermark_step
= pa_usec_to_bytes(TSCHED_WATERMARK_STEP_USEC
, &u
->source
->sample_spec
);
1541 pa_source_set_latency_range(u
->source
,
1542 !use_tsched
? pa_bytes_to_usec(u
->hwbuf_size
, &ss
) : (pa_usec_t
) -1,
1543 pa_bytes_to_usec(u
->hwbuf_size
, &ss
));
1545 pa_log_info("Using %u fragments of size %lu bytes, buffer time is %0.2fms",
1546 nfrags
, (long unsigned) u
->fragment_size
,
1547 (double) pa_bytes_to_usec(u
->hwbuf_size
, &ss
) / PA_USEC_PER_MSEC
);
1550 pa_log_info("Time scheduling watermark is %0.2fms",
1551 (double) pa_bytes_to_usec(u
->tsched_watermark
, &ss
) / PA_USEC_PER_MSEC
);
1555 if (update_sw_params(u
) < 0)
1558 if (setup_mixer(u
, ignore_dB
) < 0)
1561 pa_alsa_dump(u
->pcm_handle
);
1563 if (!(u
->thread
= pa_thread_new(thread_func
, u
))) {
1564 pa_log("Failed to create thread.");
1567 /* Get initial mixer settings */
1568 if (data
.volume_is_set
) {
1569 if (u
->source
->set_volume
)
1570 u
->source
->set_volume(u
->source
);
1572 if (u
->source
->get_volume
)
1573 u
->source
->get_volume(u
->source
);
1576 if (data
.muted_is_set
) {
1577 if (u
->source
->set_mute
)
1578 u
->source
->set_mute(u
->source
);
1580 if (u
->source
->get_mute
)
1581 u
->source
->get_mute(u
->source
);
1584 pa_source_put(u
->source
);
1595 static void userdata_free(struct userdata
*u
) {
1599 pa_source_unlink(u
->source
);
1602 pa_asyncmsgq_send(u
->thread_mq
.inq
, NULL
, PA_MESSAGE_SHUTDOWN
, NULL
, 0, NULL
);
1603 pa_thread_free(u
->thread
);
1606 pa_thread_mq_done(&u
->thread_mq
);
1609 pa_source_unref(u
->source
);
1611 if (u
->alsa_rtpoll_item
)
1612 pa_rtpoll_item_free(u
->alsa_rtpoll_item
);
1615 pa_rtpoll_free(u
->rtpoll
);
1618 pa_alsa_fdlist_free(u
->mixer_fdl
);
1620 if (u
->mixer_handle
)
1621 snd_mixer_close(u
->mixer_handle
);
1623 if (u
->pcm_handle
) {
1624 snd_pcm_drop(u
->pcm_handle
);
1625 snd_pcm_close(u
->pcm_handle
);
1629 pa_smoother_free(u
->smoother
);
1633 pa_xfree(u
->device_name
);
1637 void pa_alsa_source_free(pa_source
*s
) {
1640 pa_source_assert_ref(s
);
1641 pa_assert_se(u
= s
->userdata
);