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 #include <pulse/xmalloc.h>
32 #include <pulse/util.h>
33 #include <pulse/timeval.h>
34 #include <pulse/i18n.h>
36 #include <pulsecore/core-error.h>
37 #include <pulsecore/core.h>
38 #include <pulsecore/module.h>
39 #include <pulsecore/memchunk.h>
40 #include <pulsecore/sink.h>
41 #include <pulsecore/modargs.h>
42 #include <pulsecore/core-util.h>
43 #include <pulsecore/sample-util.h>
44 #include <pulsecore/log.h>
45 #include <pulsecore/macro.h>
46 #include <pulsecore/thread.h>
47 #include <pulsecore/core-error.h>
48 #include <pulsecore/thread-mq.h>
49 #include <pulsecore/rtpoll.h>
50 #include <pulsecore/time-smoother.h>
51 #include <pulsecore/rtclock.h>
53 #include <modules/reserve-wrap.h>
55 #include "alsa-util.h"
56 #include "alsa-source.h"
58 /* #define DEBUG_TIMING */
60 #define DEFAULT_DEVICE "default"
61 #define DEFAULT_TSCHED_BUFFER_USEC (2*PA_USEC_PER_SEC) /* 2s */
62 #define DEFAULT_TSCHED_WATERMARK_USEC (20*PA_USEC_PER_MSEC) /* 20ms */
63 #define TSCHED_WATERMARK_STEP_USEC (10*PA_USEC_PER_MSEC) /* 10ms */
64 #define TSCHED_MIN_SLEEP_USEC (10*PA_USEC_PER_MSEC) /* 10ms */
65 #define TSCHED_MIN_WAKEUP_USEC (4*PA_USEC_PER_MSEC) /* 4ms */
73 pa_thread_mq thread_mq
;
76 snd_pcm_t
*pcm_handle
;
78 pa_alsa_fdlist
*mixer_fdl
;
79 snd_mixer_t
*mixer_handle
;
80 pa_alsa_path_set
*mixer_path_set
;
81 pa_alsa_path
*mixer_path
;
83 pa_cvolume hardware_volume
;
100 pa_bool_t use_mmap
:1, use_tsched
:1;
102 pa_rtpoll_item
*alsa_rtpoll_item
;
104 snd_mixer_selem_channel_id_t mixer_map
[SND_MIXER_SCHN_LAST
];
106 pa_smoother
*smoother
;
109 pa_reserve_wrapper
*reserve
;
110 pa_hook_slot
*reserve_slot
;
111 pa_reserve_monitor_wrapper
*monitor
;
112 pa_hook_slot
*monitor_slot
;
115 static void userdata_free(struct userdata
*u
);
117 static pa_hook_result_t
reserve_cb(pa_reserve_wrapper
*r
, void *forced
, struct userdata
*u
) {
121 if (pa_source_suspend(u
->source
, TRUE
, PA_SUSPEND_APPLICATION
) < 0)
122 return PA_HOOK_CANCEL
;
127 static void reserve_done(struct userdata
*u
) {
130 if (u
->reserve_slot
) {
131 pa_hook_slot_free(u
->reserve_slot
);
132 u
->reserve_slot
= NULL
;
136 pa_reserve_wrapper_unref(u
->reserve
);
141 static void reserve_update(struct userdata
*u
) {
142 const char *description
;
145 if (!u
->source
|| !u
->reserve
)
148 if ((description
= pa_proplist_gets(u
->source
->proplist
, PA_PROP_DEVICE_DESCRIPTION
)))
149 pa_reserve_wrapper_set_application_device_name(u
->reserve
, description
);
152 static int reserve_init(struct userdata
*u
, const char *dname
) {
161 if (pa_in_system_mode())
164 /* We are resuming, try to lock the device */
165 if (!(rname
= pa_alsa_get_reserve_name(dname
)))
168 u
->reserve
= pa_reserve_wrapper_get(u
->core
, rname
);
176 pa_assert(!u
->reserve_slot
);
177 u
->reserve_slot
= pa_hook_connect(pa_reserve_wrapper_hook(u
->reserve
), PA_HOOK_NORMAL
, (pa_hook_cb_t
) reserve_cb
, u
);
182 static pa_hook_result_t
monitor_cb(pa_reserve_monitor_wrapper
*w
, void* busy
, struct userdata
*u
) {
188 b
= PA_PTR_TO_UINT(busy
) && !u
->reserve
;
190 pa_source_suspend(u
->source
, b
, PA_SUSPEND_APPLICATION
);
194 static void monitor_done(struct userdata
*u
) {
197 if (u
->monitor_slot
) {
198 pa_hook_slot_free(u
->monitor_slot
);
199 u
->monitor_slot
= NULL
;
203 pa_reserve_monitor_wrapper_unref(u
->monitor
);
208 static int reserve_monitor_init(struct userdata
*u
, const char *dname
) {
214 if (pa_in_system_mode())
217 /* We are resuming, try to lock the device */
218 if (!(rname
= pa_alsa_get_reserve_name(dname
)))
221 u
->monitor
= pa_reserve_monitor_wrapper_get(u
->core
, rname
);
227 pa_assert(!u
->monitor_slot
);
228 u
->monitor_slot
= pa_hook_connect(pa_reserve_monitor_wrapper_hook(u
->monitor
), PA_HOOK_NORMAL
, (pa_hook_cb_t
) monitor_cb
, u
);
233 static void fix_min_sleep_wakeup(struct userdata
*u
) {
234 size_t max_use
, max_use_2
;
237 max_use
= u
->hwbuf_size
- u
->hwbuf_unused
;
238 max_use_2
= pa_frame_align(max_use
/2, &u
->source
->sample_spec
);
240 u
->min_sleep
= pa_usec_to_bytes(TSCHED_MIN_SLEEP_USEC
, &u
->source
->sample_spec
);
241 u
->min_sleep
= PA_CLAMP(u
->min_sleep
, u
->frame_size
, max_use_2
);
243 u
->min_wakeup
= pa_usec_to_bytes(TSCHED_MIN_WAKEUP_USEC
, &u
->source
->sample_spec
);
244 u
->min_wakeup
= PA_CLAMP(u
->min_wakeup
, u
->frame_size
, max_use_2
);
247 static void fix_tsched_watermark(struct userdata
*u
) {
251 max_use
= u
->hwbuf_size
- u
->hwbuf_unused
;
253 if (u
->tsched_watermark
> max_use
- u
->min_sleep
)
254 u
->tsched_watermark
= max_use
- u
->min_sleep
;
256 if (u
->tsched_watermark
< u
->min_wakeup
)
257 u
->tsched_watermark
= u
->min_wakeup
;
260 static void adjust_after_overrun(struct userdata
*u
) {
261 size_t old_watermark
;
262 pa_usec_t old_min_latency
, new_min_latency
;
265 pa_assert(u
->use_tsched
);
267 /* First, just try to increase the watermark */
268 old_watermark
= u
->tsched_watermark
;
269 u
->tsched_watermark
= PA_MIN(u
->tsched_watermark
* 2, u
->tsched_watermark
+ u
->watermark_step
);
271 fix_tsched_watermark(u
);
273 if (old_watermark
!= u
->tsched_watermark
) {
274 pa_log_notice("Increasing wakeup watermark to %0.2f ms",
275 (double) pa_bytes_to_usec(u
->tsched_watermark
, &u
->source
->sample_spec
) / PA_USEC_PER_MSEC
);
279 /* Hmm, we cannot increase the watermark any further, hence let's raise the latency */
280 old_min_latency
= u
->source
->thread_info
.min_latency
;
281 new_min_latency
= PA_MIN(old_min_latency
* 2, old_min_latency
+ TSCHED_WATERMARK_STEP_USEC
);
282 new_min_latency
= PA_MIN(new_min_latency
, u
->source
->thread_info
.max_latency
);
284 if (old_min_latency
!= new_min_latency
) {
285 pa_log_notice("Increasing minimal latency to %0.2f ms",
286 (double) new_min_latency
/ PA_USEC_PER_MSEC
);
288 pa_source_set_latency_range_within_thread(u
->source
, new_min_latency
, u
->source
->thread_info
.max_latency
);
292 /* When we reach this we're officialy fucked! */
295 static pa_usec_t
hw_sleep_time(struct userdata
*u
, pa_usec_t
*sleep_usec
, pa_usec_t
*process_usec
) {
300 usec
= pa_source_get_requested_latency_within_thread(u
->source
);
302 if (usec
== (pa_usec_t
) -1)
303 usec
= pa_bytes_to_usec(u
->hwbuf_size
, &u
->source
->sample_spec
);
305 wm
= pa_bytes_to_usec(u
->tsched_watermark
, &u
->source
->sample_spec
);
310 *sleep_usec
= usec
- wm
;
314 pa_log_debug("Buffer time: %lu ms; Sleep time: %lu ms; Process time: %lu ms",
315 (unsigned long) (usec
/ PA_USEC_PER_MSEC
),
316 (unsigned long) (*sleep_usec
/ PA_USEC_PER_MSEC
),
317 (unsigned long) (*process_usec
/ PA_USEC_PER_MSEC
));
323 static int try_recover(struct userdata
*u
, const char *call
, int err
) {
328 pa_log_debug("%s: %s", call
, pa_alsa_strerror(err
));
330 pa_assert(err
!= -EAGAIN
);
333 pa_log_debug("%s: Buffer overrun!", call
);
335 if ((err
= snd_pcm_recover(u
->pcm_handle
, err
, 1)) < 0) {
336 pa_log("%s: %s", call
, pa_alsa_strerror(err
));
340 snd_pcm_start(u
->pcm_handle
);
344 static size_t check_left_to_record(struct userdata
*u
, size_t n_bytes
) {
345 size_t left_to_record
;
346 size_t rec_space
= u
->hwbuf_size
- u
->hwbuf_unused
;
348 /* We use <= instead of < for this check here because an overrun
349 * only happens after the last sample was processed, not already when
350 * it is removed from the buffer. This is particularly important
351 * when block transfer is used. */
353 if (n_bytes
<= rec_space
) {
354 left_to_record
= rec_space
- n_bytes
;
357 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
);
367 if (pa_log_ratelimit())
368 pa_log_info("Overrun!");
371 adjust_after_overrun(u
);
374 return left_to_record
;
377 static int mmap_read(struct userdata
*u
, pa_usec_t
*sleep_usec
, pa_bool_t polled
) {
378 pa_bool_t work_done
= FALSE
;
379 pa_usec_t max_sleep_usec
= 0, process_usec
= 0;
380 size_t left_to_record
;
384 pa_source_assert_ref(u
->source
);
387 hw_sleep_time(u
, &max_sleep_usec
, &process_usec
);
394 if (PA_UNLIKELY((n
= pa_alsa_safe_avail(u
->pcm_handle
, u
->hwbuf_size
, &u
->source
->sample_spec
)) < 0)) {
396 if ((r
= try_recover(u
, "snd_pcm_avail", (int) n
)) == 0)
402 n_bytes
= (size_t) n
* u
->frame_size
;
405 pa_log_debug("avail: %lu", (unsigned long) n_bytes
);
408 left_to_record
= check_left_to_record(u
, n_bytes
);
412 pa_bytes_to_usec(left_to_record
, &u
->source
->sample_spec
) > process_usec
+max_sleep_usec
/2) {
414 pa_log_debug("Not reading, because too early.");
419 if (PA_UNLIKELY(n_bytes
<= 0)) {
423 char *dn
= pa_alsa_get_driver_name_by_pcm(u
->pcm_handle
);
424 pa_log(_("ALSA woke us up to read new data from the device, but there was actually nothing to read!\n"
425 "Most likely this is a bug in the ALSA driver '%s'. Please report this issue to the ALSA developers.\n"
426 "We were woken up with POLLIN set -- however a subsequent snd_pcm_avail() returned 0 or another value < min_avail."),
432 pa_log_debug("Not reading, because not necessary.");
439 pa_log_debug("Not filling up, because already too many iterations.");
448 pa_log_debug("Reading");
453 const snd_pcm_channel_area_t
*areas
;
454 snd_pcm_uframes_t offset
, frames
;
457 snd_pcm_sframes_t sframes
;
459 frames
= (snd_pcm_uframes_t
) (n_bytes
/ u
->frame_size
);
461 /* pa_log_debug("%lu frames to read", (unsigned long) frames); */
463 if (PA_UNLIKELY((err
= pa_alsa_safe_mmap_begin(u
->pcm_handle
, &areas
, &offset
, &frames
, u
->hwbuf_size
, &u
->source
->sample_spec
)) < 0)) {
465 if ((r
= try_recover(u
, "snd_pcm_mmap_begin", err
)) == 0)
471 /* Make sure that if these memblocks need to be copied they will fit into one slot */
472 if (frames
> pa_mempool_block_size_max(u
->source
->core
->mempool
)/u
->frame_size
)
473 frames
= pa_mempool_block_size_max(u
->source
->core
->mempool
)/u
->frame_size
;
475 /* Check these are multiples of 8 bit */
476 pa_assert((areas
[0].first
& 7) == 0);
477 pa_assert((areas
[0].step
& 7)== 0);
479 /* We assume a single interleaved memory buffer */
480 pa_assert((areas
[0].first
>> 3) == 0);
481 pa_assert((areas
[0].step
>> 3) == u
->frame_size
);
483 p
= (uint8_t*) areas
[0].addr
+ (offset
* u
->frame_size
);
485 chunk
.memblock
= pa_memblock_new_fixed(u
->core
->mempool
, p
, frames
* u
->frame_size
, TRUE
);
486 chunk
.length
= pa_memblock_get_length(chunk
.memblock
);
489 pa_source_post(u
->source
, &chunk
);
490 pa_memblock_unref_fixed(chunk
.memblock
);
492 if (PA_UNLIKELY((sframes
= snd_pcm_mmap_commit(u
->pcm_handle
, offset
, frames
)) < 0)) {
494 if ((r
= try_recover(u
, "snd_pcm_mmap_commit", (int) sframes
)) == 0)
502 u
->read_count
+= frames
* u
->frame_size
;
505 pa_log_debug("Read %lu bytes (of possible %lu bytes)", (unsigned long) (frames
* u
->frame_size
), (unsigned long) n_bytes
);
508 if ((size_t) frames
* u
->frame_size
>= n_bytes
)
511 n_bytes
-= (size_t) frames
* u
->frame_size
;
515 *sleep_usec
= pa_bytes_to_usec(left_to_record
, &u
->source
->sample_spec
);
517 if (*sleep_usec
> process_usec
)
518 *sleep_usec
-= process_usec
;
522 return work_done
? 1 : 0;
525 static int unix_read(struct userdata
*u
, pa_usec_t
*sleep_usec
, pa_bool_t polled
) {
526 int work_done
= FALSE
;
527 pa_usec_t max_sleep_usec
= 0, process_usec
= 0;
528 size_t left_to_record
;
532 pa_source_assert_ref(u
->source
);
535 hw_sleep_time(u
, &max_sleep_usec
, &process_usec
);
542 if (PA_UNLIKELY((n
= pa_alsa_safe_avail(u
->pcm_handle
, u
->hwbuf_size
, &u
->source
->sample_spec
)) < 0)) {
544 if ((r
= try_recover(u
, "snd_pcm_avail", (int) n
)) == 0)
550 n_bytes
= (size_t) n
* u
->frame_size
;
551 left_to_record
= check_left_to_record(u
, n_bytes
);
555 pa_bytes_to_usec(left_to_record
, &u
->source
->sample_spec
) > process_usec
+max_sleep_usec
/2)
558 if (PA_UNLIKELY(n_bytes
<= 0)) {
562 char *dn
= pa_alsa_get_driver_name_by_pcm(u
->pcm_handle
);
563 pa_log(_("ALSA woke us up to read new data from the device, but there was actually nothing to read!\n"
564 "Most likely this is a bug in the ALSA driver '%s'. Please report this issue to the ALSA developers.\n"
565 "We were woken up with POLLIN set -- however a subsequent snd_pcm_avail() returned 0 or another value < min_avail."),
575 pa_log_debug("Not filling up, because already too many iterations.");
585 snd_pcm_sframes_t frames
;
588 chunk
.memblock
= pa_memblock_new(u
->core
->mempool
, (size_t) -1);
590 frames
= (snd_pcm_sframes_t
) (pa_memblock_get_length(chunk
.memblock
) / u
->frame_size
);
592 if (frames
> (snd_pcm_sframes_t
) (n_bytes
/u
->frame_size
))
593 frames
= (snd_pcm_sframes_t
) (n_bytes
/u
->frame_size
);
595 /* pa_log_debug("%lu frames to read", (unsigned long) n); */
597 p
= pa_memblock_acquire(chunk
.memblock
);
598 frames
= snd_pcm_readi(u
->pcm_handle
, (uint8_t*) p
, (snd_pcm_uframes_t
) frames
);
599 pa_memblock_release(chunk
.memblock
);
601 pa_assert(frames
!= 0);
603 if (PA_UNLIKELY(frames
< 0)) {
604 pa_memblock_unref(chunk
.memblock
);
606 if ((r
= try_recover(u
, "snd_pcm_readi", (int) (frames
))) == 0)
613 chunk
.length
= (size_t) frames
* u
->frame_size
;
615 pa_source_post(u
->source
, &chunk
);
616 pa_memblock_unref(chunk
.memblock
);
620 u
->read_count
+= frames
* u
->frame_size
;
622 /* pa_log_debug("read %lu frames", (unsigned long) frames); */
624 if ((size_t) frames
* u
->frame_size
>= n_bytes
)
627 n_bytes
-= (size_t) frames
* u
->frame_size
;
631 *sleep_usec
= pa_bytes_to_usec(left_to_record
, &u
->source
->sample_spec
);
633 if (*sleep_usec
> process_usec
)
634 *sleep_usec
-= process_usec
;
638 return work_done
? 1 : 0;
641 static void update_smoother(struct userdata
*u
) {
642 snd_pcm_sframes_t delay
= 0;
645 pa_usec_t now1
= 0, now2
;
646 snd_pcm_status_t
*status
;
648 snd_pcm_status_alloca(&status
);
651 pa_assert(u
->pcm_handle
);
653 /* Let's update the time smoother */
655 if (PA_UNLIKELY((err
= pa_alsa_safe_delay(u
->pcm_handle
, &delay
, u
->hwbuf_size
, &u
->source
->sample_spec
)) < 0)) {
656 pa_log_warn("Failed to get delay: %s", pa_alsa_strerror(err
));
660 if (PA_UNLIKELY((err
= snd_pcm_status(u
->pcm_handle
, status
)) < 0))
661 pa_log_warn("Failed to get timestamp: %s", pa_alsa_strerror(err
));
663 snd_htimestamp_t htstamp
= { 0, 0 };
664 snd_pcm_status_get_htstamp(status
, &htstamp
);
665 now1
= pa_timespec_load(&htstamp
);
668 position
= u
->read_count
+ ((uint64_t) delay
* (uint64_t) u
->frame_size
);
670 /* Hmm, if the timestamp is 0, then it wasn't set and we take the current time */
672 now1
= pa_rtclock_usec();
674 now2
= pa_bytes_to_usec(position
, &u
->source
->sample_spec
);
676 pa_smoother_put(u
->smoother
, now1
, now2
);
679 static pa_usec_t
source_get_latency(struct userdata
*u
) {
681 pa_usec_t now1
, now2
;
685 now1
= pa_rtclock_usec();
686 now2
= pa_smoother_get(u
->smoother
, now1
);
688 delay
= (int64_t) now2
- (int64_t) pa_bytes_to_usec(u
->read_count
, &u
->source
->sample_spec
);
690 return delay
>= 0 ? (pa_usec_t
) delay
: 0;
693 static int build_pollfd(struct userdata
*u
) {
695 pa_assert(u
->pcm_handle
);
697 if (u
->alsa_rtpoll_item
)
698 pa_rtpoll_item_free(u
->alsa_rtpoll_item
);
700 if (!(u
->alsa_rtpoll_item
= pa_alsa_build_pollfd(u
->pcm_handle
, u
->rtpoll
)))
706 static int suspend(struct userdata
*u
) {
708 pa_assert(u
->pcm_handle
);
710 pa_smoother_pause(u
->smoother
, pa_rtclock_usec());
713 snd_pcm_close(u
->pcm_handle
);
714 u
->pcm_handle
= NULL
;
716 if (u
->alsa_rtpoll_item
) {
717 pa_rtpoll_item_free(u
->alsa_rtpoll_item
);
718 u
->alsa_rtpoll_item
= NULL
;
721 pa_log_info("Device suspended...");
726 static int update_sw_params(struct userdata
*u
) {
727 snd_pcm_uframes_t avail_min
;
732 /* Use the full buffer if noone asked us for anything specific */
738 if ((latency
= pa_source_get_requested_latency_within_thread(u
->source
)) != (pa_usec_t
) -1) {
741 pa_log_debug("latency set to %0.2fms", (double) latency
/ PA_USEC_PER_MSEC
);
743 b
= pa_usec_to_bytes(latency
, &u
->source
->sample_spec
);
745 /* We need at least one sample in our buffer */
747 if (PA_UNLIKELY(b
< u
->frame_size
))
750 u
->hwbuf_unused
= PA_LIKELY(b
< u
->hwbuf_size
) ? (u
->hwbuf_size
- b
) : 0;
753 fix_min_sleep_wakeup(u
);
754 fix_tsched_watermark(u
);
757 pa_log_debug("hwbuf_unused=%lu", (unsigned long) u
->hwbuf_unused
);
762 pa_usec_t sleep_usec
, process_usec
;
764 hw_sleep_time(u
, &sleep_usec
, &process_usec
);
765 avail_min
+= pa_usec_to_bytes(sleep_usec
, &u
->source
->sample_spec
) / u
->frame_size
;
768 pa_log_debug("setting avail_min=%lu", (unsigned long) avail_min
);
770 if ((err
= pa_alsa_set_sw_params(u
->pcm_handle
, avail_min
)) < 0) {
771 pa_log("Failed to set software parameters: %s", pa_alsa_strerror(err
));
778 static int unsuspend(struct userdata
*u
) {
783 snd_pcm_uframes_t period_size
;
786 pa_assert(!u
->pcm_handle
);
788 pa_log_info("Trying resume...");
790 if ((err
= snd_pcm_open(&u
->pcm_handle
, u
->device_name
, SND_PCM_STREAM_CAPTURE
,
791 /*SND_PCM_NONBLOCK|*/
792 SND_PCM_NO_AUTO_RESAMPLE
|
793 SND_PCM_NO_AUTO_CHANNELS
|
794 SND_PCM_NO_AUTO_FORMAT
)) < 0) {
795 pa_log("Error opening PCM device %s: %s", u
->device_name
, pa_alsa_strerror(err
));
799 ss
= u
->source
->sample_spec
;
800 nfrags
= u
->nfragments
;
801 period_size
= u
->fragment_size
/ u
->frame_size
;
805 if ((err
= pa_alsa_set_hw_params(u
->pcm_handle
, &ss
, &nfrags
, &period_size
, u
->hwbuf_size
/ u
->frame_size
, &b
, &d
, TRUE
)) < 0) {
806 pa_log("Failed to set hardware parameters: %s", pa_alsa_strerror(err
));
810 if (b
!= u
->use_mmap
|| d
!= u
->use_tsched
) {
811 pa_log_warn("Resume failed, couldn't get original access mode.");
815 if (!pa_sample_spec_equal(&ss
, &u
->source
->sample_spec
)) {
816 pa_log_warn("Resume failed, couldn't restore original sample settings.");
820 if (nfrags
!= u
->nfragments
|| period_size
*u
->frame_size
!= u
->fragment_size
) {
821 pa_log_warn("Resume failed, couldn't restore original fragment settings. (Old: %lu*%lu, New %lu*%lu)",
822 (unsigned long) u
->nfragments
, (unsigned long) u
->fragment_size
,
823 (unsigned long) nfrags
, period_size
* u
->frame_size
);
827 if (update_sw_params(u
) < 0)
830 if (build_pollfd(u
) < 0)
833 /* FIXME: We need to reload the volume somehow */
835 snd_pcm_start(u
->pcm_handle
);
836 pa_smoother_resume(u
->smoother
, pa_rtclock_usec(), TRUE
);
838 pa_log_info("Resumed successfully...");
844 snd_pcm_close(u
->pcm_handle
);
845 u
->pcm_handle
= NULL
;
851 static int source_process_msg(pa_msgobject
*o
, int code
, void *data
, int64_t offset
, pa_memchunk
*chunk
) {
852 struct userdata
*u
= PA_SOURCE(o
)->userdata
;
856 case PA_SOURCE_MESSAGE_GET_LATENCY
: {
860 r
= source_get_latency(u
);
862 *((pa_usec_t
*) data
) = r
;
867 case PA_SOURCE_MESSAGE_SET_STATE
:
869 switch ((pa_source_state_t
) PA_PTR_TO_UINT(data
)) {
871 case PA_SOURCE_SUSPENDED
:
872 pa_assert(PA_SOURCE_IS_OPENED(u
->source
->thread_info
.state
));
880 case PA_SOURCE_RUNNING
:
882 if (u
->source
->thread_info
.state
== PA_SOURCE_INIT
) {
883 if (build_pollfd(u
) < 0)
886 snd_pcm_start(u
->pcm_handle
);
889 if (u
->source
->thread_info
.state
== PA_SOURCE_SUSPENDED
) {
890 if (unsuspend(u
) < 0)
896 case PA_SOURCE_UNLINKED
:
898 case PA_SOURCE_INVALID_STATE
:
905 return pa_source_process_msg(o
, code
, data
, offset
, chunk
);
908 /* Called from main context */
909 static int source_set_state_cb(pa_source
*s
, pa_source_state_t new_state
) {
910 pa_source_state_t old_state
;
913 pa_source_assert_ref(s
);
914 pa_assert_se(u
= s
->userdata
);
916 old_state
= pa_source_get_state(u
->source
);
918 if (PA_SINK_IS_OPENED(old_state
) && new_state
== PA_SINK_SUSPENDED
)
920 else if (old_state
== PA_SINK_SUSPENDED
&& PA_SINK_IS_OPENED(new_state
))
921 if (reserve_init(u
, u
->device_name
) < 0)
927 static int mixer_callback(snd_mixer_elem_t
*elem
, unsigned int mask
) {
928 struct userdata
*u
= snd_mixer_elem_get_callback_private(elem
);
931 pa_assert(u
->mixer_handle
);
933 if (mask
== SND_CTL_EVENT_MASK_REMOVE
)
936 if (mask
& SND_CTL_EVENT_MASK_VALUE
) {
937 pa_source_get_volume(u
->source
, TRUE
);
938 pa_source_get_mute(u
->source
, TRUE
);
944 static void source_get_volume_cb(pa_source
*s
) {
945 struct userdata
*u
= s
->userdata
;
947 char t
[PA_CVOLUME_SNPRINT_MAX
];
950 pa_assert(u
->mixer_path
);
951 pa_assert(u
->mixer_handle
);
953 if (pa_alsa_path_get_volume(u
->mixer_path
, u
->mixer_handle
, &s
->channel_map
, &r
) < 0)
956 /* Shift down by the base volume, so that 0dB becomes maximum volume */
957 pa_sw_cvolume_multiply_scalar(&r
, &r
, s
->base_volume
);
959 pa_log_debug("Read hardware volume: %s", pa_cvolume_snprint(t
, sizeof(t
), &r
));
961 if (pa_cvolume_equal(&u
->hardware_volume
, &r
))
964 s
->virtual_volume
= u
->hardware_volume
= r
;
966 if (u
->mixer_path
->has_dB
) {
969 /* Hmm, so the hardware volume changed, let's reset our software volume */
970 pa_cvolume_reset(&reset
, s
->sample_spec
.channels
);
971 pa_source_set_soft_volume(s
, &reset
);
975 static void source_set_volume_cb(pa_source
*s
) {
976 struct userdata
*u
= s
->userdata
;
978 char t
[PA_CVOLUME_SNPRINT_MAX
];
981 pa_assert(u
->mixer_path
);
982 pa_assert(u
->mixer_handle
);
984 /* Shift up by the base volume */
985 pa_sw_cvolume_divide_scalar(&r
, &s
->virtual_volume
, s
->base_volume
);
987 if (pa_alsa_path_set_volume(u
->mixer_path
, u
->mixer_handle
, &s
->channel_map
, &r
) < 0)
990 /* Shift down by the base volume, so that 0dB becomes maximum volume */
991 pa_sw_cvolume_multiply_scalar(&r
, &r
, s
->base_volume
);
993 u
->hardware_volume
= r
;
995 if (u
->mixer_path
->has_dB
) {
997 /* Match exactly what the user requested by software */
998 pa_sw_cvolume_divide(&s
->soft_volume
, &s
->virtual_volume
, &u
->hardware_volume
);
1000 pa_log_debug("Requested volume: %s", pa_cvolume_snprint(t
, sizeof(t
), &s
->virtual_volume
));
1001 pa_log_debug("Got hardware volume: %s", pa_cvolume_snprint(t
, sizeof(t
), &u
->hardware_volume
));
1002 pa_log_debug("Calculated software volume: %s", pa_cvolume_snprint(t
, sizeof(t
), &s
->soft_volume
));
1005 pa_log_debug("Wrote hardware volume: %s", pa_cvolume_snprint(t
, sizeof(t
), &r
));
1007 /* We can't match exactly what the user requested, hence let's
1008 * at least tell the user about it */
1010 s
->virtual_volume
= r
;
1014 static void source_get_mute_cb(pa_source
*s
) {
1015 struct userdata
*u
= s
->userdata
;
1019 pa_assert(u
->mixer_path
);
1020 pa_assert(u
->mixer_handle
);
1022 if (pa_alsa_path_get_mute(u
->mixer_path
, u
->mixer_handle
, &b
) < 0)
1028 static void source_set_mute_cb(pa_source
*s
) {
1029 struct userdata
*u
= s
->userdata
;
1032 pa_assert(u
->mixer_path
);
1033 pa_assert(u
->mixer_handle
);
1035 pa_alsa_path_set_mute(u
->mixer_path
, u
->mixer_handle
, s
->muted
);
1038 static int source_set_port_cb(pa_source
*s
, pa_device_port
*p
) {
1039 struct userdata
*u
= s
->userdata
;
1040 pa_alsa_port_data
*data
;
1044 pa_assert(u
->mixer_handle
);
1046 data
= PA_DEVICE_PORT_DATA(p
);
1048 pa_assert_se(u
->mixer_path
= data
->path
);
1049 pa_alsa_path_select(u
->mixer_path
, u
->mixer_handle
);
1051 if (u
->mixer_path
->has_volume
&& u
->mixer_path
->has_dB
) {
1052 s
->base_volume
= pa_sw_volume_from_dB(-u
->mixer_path
->max_dB
);
1053 s
->n_volume_steps
= PA_VOLUME_NORM
+1;
1055 if (u
->mixer_path
->max_dB
> 0.0)
1056 pa_log_info("Fixing base volume to %0.2f dB", pa_sw_volume_to_dB(s
->base_volume
));
1058 pa_log_info("No particular base volume set, fixing to 0 dB");
1060 s
->base_volume
= PA_VOLUME_NORM
;
1061 s
->n_volume_steps
= u
->mixer_path
->max_volume
- u
->mixer_path
->min_volume
+ 1;
1065 pa_alsa_setting_select(data
->setting
, u
->mixer_handle
);
1075 static void source_update_requested_latency_cb(pa_source
*s
) {
1076 struct userdata
*u
= s
->userdata
;
1082 update_sw_params(u
);
1085 static void thread_func(void *userdata
) {
1086 struct userdata
*u
= userdata
;
1087 unsigned short revents
= 0;
1091 pa_log_debug("Thread starting up");
1093 if (u
->core
->realtime_scheduling
)
1094 pa_make_realtime(u
->core
->realtime_priority
);
1096 pa_thread_mq_install(&u
->thread_mq
);
1097 pa_rtpoll_install(u
->rtpoll
);
1103 pa_log_debug("Loop");
1106 /* Read some data and pass it to the sources */
1107 if (PA_SOURCE_IS_OPENED(u
->source
->thread_info
.state
)) {
1109 pa_usec_t sleep_usec
= 0;
1112 work_done
= mmap_read(u
, &sleep_usec
, revents
& POLLIN
);
1114 work_done
= unix_read(u
, &sleep_usec
, revents
& POLLIN
);
1119 /* pa_log_debug("work_done = %i", work_done); */
1124 if (u
->use_tsched
) {
1127 /* OK, the capture buffer is now empty, let's
1128 * calculate when to wake up next */
1130 /* pa_log_debug("Waking up in %0.2fms (sound card clock).", (double) sleep_usec / PA_USEC_PER_MSEC); */
1132 /* Convert from the sound card time domain to the
1133 * system time domain */
1134 cusec
= pa_smoother_translate(u
->smoother
, pa_rtclock_usec(), sleep_usec
);
1136 /* pa_log_debug("Waking up in %0.2fms (system clock).", (double) cusec / PA_USEC_PER_MSEC); */
1138 /* We don't trust the conversion, so we wake up whatever comes first */
1139 pa_rtpoll_set_timer_relative(u
->rtpoll
, PA_MIN(sleep_usec
, cusec
));
1141 } else if (u
->use_tsched
)
1143 /* OK, we're in an invalid state, let's disable our timers */
1144 pa_rtpoll_set_timer_disabled(u
->rtpoll
);
1146 /* Hmm, nothing to do. Let's sleep */
1147 if ((ret
= pa_rtpoll_run(u
->rtpoll
, TRUE
)) < 0)
1153 /* Tell ALSA about this and process its response */
1154 if (PA_SOURCE_IS_OPENED(u
->source
->thread_info
.state
)) {
1155 struct pollfd
*pollfd
;
1159 pollfd
= pa_rtpoll_item_get_pollfd(u
->alsa_rtpoll_item
, &n
);
1161 if ((err
= snd_pcm_poll_descriptors_revents(u
->pcm_handle
, pollfd
, n
, &revents
)) < 0) {
1162 pa_log("snd_pcm_poll_descriptors_revents() failed: %s", pa_alsa_strerror(err
));
1166 if (revents
& ~POLLIN
) {
1167 if (pa_alsa_recover_from_poll(u
->pcm_handle
, revents
) < 0)
1170 snd_pcm_start(u
->pcm_handle
);
1171 } else if (revents
&& u
->use_tsched
&& pa_log_ratelimit())
1172 pa_log_debug("Wakeup from ALSA!");
1179 /* If this was no regular exit from the loop we have to continue
1180 * processing messages until we received PA_MESSAGE_SHUTDOWN */
1181 pa_asyncmsgq_post(u
->thread_mq
.outq
, PA_MSGOBJECT(u
->core
), PA_CORE_MESSAGE_UNLOAD_MODULE
, u
->module
, 0, NULL
, NULL
);
1182 pa_asyncmsgq_wait_for(u
->thread_mq
.inq
, PA_MESSAGE_SHUTDOWN
);
1185 pa_log_debug("Thread shutting down");
1188 static void set_source_name(pa_source_new_data
*data
, pa_modargs
*ma
, const char *device_id
, const char *device_name
, pa_alsa_mapping
*mapping
) {
1194 pa_assert(device_name
);
1196 if ((n
= pa_modargs_get_value(ma
, "source_name", NULL
))) {
1197 pa_source_new_data_set_name(data
, n
);
1198 data
->namereg_fail
= TRUE
;
1202 if ((n
= pa_modargs_get_value(ma
, "name", NULL
)))
1203 data
->namereg_fail
= TRUE
;
1205 n
= device_id
? device_id
: device_name
;
1206 data
->namereg_fail
= FALSE
;
1210 t
= pa_sprintf_malloc("alsa_input.%s.%s", n
, mapping
->name
);
1212 t
= pa_sprintf_malloc("alsa_input.%s", n
);
1214 pa_source_new_data_set_name(data
, t
);
1218 static void find_mixer(struct userdata
*u
, pa_alsa_mapping
*mapping
, const char *element
, pa_bool_t ignore_dB
) {
1220 if (!mapping
&& !element
)
1223 if (!(u
->mixer_handle
= pa_alsa_open_mixer_for_pcm(u
->pcm_handle
, &u
->control_device
))) {
1224 pa_log_info("Failed to find a working mixer device.");
1230 if (!(u
->mixer_path
= pa_alsa_path_synthesize(element
, PA_ALSA_DIRECTION_INPUT
)))
1233 if (pa_alsa_path_probe(u
->mixer_path
, u
->mixer_handle
, ignore_dB
) < 0)
1236 pa_log_debug("Probed mixer path %s:", u
->mixer_path
->name
);
1237 pa_alsa_path_dump(u
->mixer_path
);
1240 if (!(u
->mixer_path_set
= pa_alsa_path_set_new(mapping
, PA_ALSA_DIRECTION_INPUT
)))
1243 pa_alsa_path_set_probe(u
->mixer_path_set
, u
->mixer_handle
, ignore_dB
);
1245 pa_log_debug("Probed mixer paths:");
1246 pa_alsa_path_set_dump(u
->mixer_path_set
);
1253 if (u
->mixer_path_set
) {
1254 pa_alsa_path_set_free(u
->mixer_path_set
);
1255 u
->mixer_path_set
= NULL
;
1256 } else if (u
->mixer_path
) {
1257 pa_alsa_path_free(u
->mixer_path
);
1258 u
->mixer_path
= NULL
;
1261 if (u
->mixer_handle
) {
1262 snd_mixer_close(u
->mixer_handle
);
1263 u
->mixer_handle
= NULL
;
1267 static int setup_mixer(struct userdata
*u
, pa_bool_t ignore_dB
) {
1270 if (!u
->mixer_handle
)
1273 if (u
->source
->active_port
) {
1274 pa_alsa_port_data
*data
;
1276 /* We have a list of supported paths, so let's activate the
1277 * one that has been chosen as active */
1279 data
= PA_DEVICE_PORT_DATA(u
->source
->active_port
);
1280 u
->mixer_path
= data
->path
;
1282 pa_alsa_path_select(data
->path
, u
->mixer_handle
);
1285 pa_alsa_setting_select(data
->setting
, u
->mixer_handle
);
1289 if (!u
->mixer_path
&& u
->mixer_path_set
)
1290 u
->mixer_path
= u
->mixer_path_set
->paths
;
1292 if (u
->mixer_path
) {
1293 /* Hmm, we have only a single path, then let's activate it */
1295 pa_alsa_path_select(u
->mixer_path
, u
->mixer_handle
);
1297 if (u
->mixer_path
->settings
)
1298 pa_alsa_setting_select(u
->mixer_path
->settings
, u
->mixer_handle
);
1303 if (!u
->mixer_path
->has_volume
)
1304 pa_log_info("Driver does not support hardware volume control, falling back to software volume control.");
1307 if (u
->mixer_path
->has_dB
) {
1308 pa_log_info("Hardware volume ranges from %0.2f dB to %0.2f dB.", u
->mixer_path
->min_dB
, u
->mixer_path
->max_dB
);
1310 u
->source
->base_volume
= pa_sw_volume_from_dB(-u
->mixer_path
->max_dB
);
1311 u
->source
->n_volume_steps
= PA_VOLUME_NORM
+1;
1313 if (u
->mixer_path
->max_dB
> 0.0)
1314 pa_log_info("Fixing base volume to %0.2f dB", pa_sw_volume_to_dB(u
->source
->base_volume
));
1316 pa_log_info("No particular base volume set, fixing to 0 dB");
1319 pa_log_info("Hardware volume ranges from %li to %li.", u
->mixer_path
->min_volume
, u
->mixer_path
->max_volume
);
1320 u
->source
->base_volume
= PA_VOLUME_NORM
;
1321 u
->source
->n_volume_steps
= u
->mixer_path
->max_volume
- u
->mixer_path
->min_volume
+ 1;
1324 u
->source
->get_volume
= source_get_volume_cb
;
1325 u
->source
->set_volume
= source_set_volume_cb
;
1327 u
->source
->flags
|= PA_SOURCE_HW_VOLUME_CTRL
| (u
->mixer_path
->has_dB
? PA_SOURCE_DECIBEL_VOLUME
: 0);
1328 pa_log_info("Using hardware volume control. Hardware dB scale %s.", u
->mixer_path
->has_dB
? "supported" : "not supported");
1331 if (!u
->mixer_path
->has_mute
) {
1332 pa_log_info("Driver does not support hardware mute control, falling back to software mute control.");
1334 u
->source
->get_mute
= source_get_mute_cb
;
1335 u
->source
->set_mute
= source_set_mute_cb
;
1336 u
->source
->flags
|= PA_SOURCE_HW_MUTE_CTRL
;
1337 pa_log_info("Using hardware mute control.");
1340 u
->mixer_fdl
= pa_alsa_fdlist_new();
1342 if (pa_alsa_fdlist_set_mixer(u
->mixer_fdl
, u
->mixer_handle
, u
->core
->mainloop
) < 0) {
1343 pa_log("Failed to initialize file descriptor monitoring");
1347 if (u
->mixer_path_set
)
1348 pa_alsa_path_set_set_callback(u
->mixer_path_set
, u
->mixer_handle
, mixer_callback
, u
);
1350 pa_alsa_path_set_callback(u
->mixer_path
, u
->mixer_handle
, mixer_callback
, u
);
1355 pa_source
*pa_alsa_source_new(pa_module
*m
, pa_modargs
*ma
, const char*driver
, pa_card
*card
, pa_alsa_mapping
*mapping
) {
1357 struct userdata
*u
= NULL
;
1358 const char *dev_id
= NULL
;
1359 pa_sample_spec ss
, requested_ss
;
1361 uint32_t nfrags
, hwbuf_size
, frag_size
, tsched_size
, tsched_watermark
;
1362 snd_pcm_uframes_t period_frames
, tsched_frames
;
1364 pa_bool_t use_mmap
= TRUE
, b
, use_tsched
= TRUE
, d
, ignore_dB
= FALSE
;
1365 pa_source_new_data data
;
1366 pa_alsa_profile_set
*profile_set
= NULL
;
1371 ss
= m
->core
->default_sample_spec
;
1372 map
= m
->core
->default_channel_map
;
1373 if (pa_modargs_get_sample_spec_and_channel_map(ma
, &ss
, &map
, PA_CHANNEL_MAP_ALSA
) < 0) {
1374 pa_log("Failed to parse sample specification");
1379 frame_size
= pa_frame_size(&ss
);
1381 nfrags
= m
->core
->default_n_fragments
;
1382 frag_size
= (uint32_t) pa_usec_to_bytes(m
->core
->default_fragment_size_msec
*PA_USEC_PER_MSEC
, &ss
);
1384 frag_size
= (uint32_t) frame_size
;
1385 tsched_size
= (uint32_t) pa_usec_to_bytes(DEFAULT_TSCHED_BUFFER_USEC
, &ss
);
1386 tsched_watermark
= (uint32_t) pa_usec_to_bytes(DEFAULT_TSCHED_WATERMARK_USEC
, &ss
);
1388 if (pa_modargs_get_value_u32(ma
, "fragments", &nfrags
) < 0 ||
1389 pa_modargs_get_value_u32(ma
, "fragment_size", &frag_size
) < 0 ||
1390 pa_modargs_get_value_u32(ma
, "tsched_buffer_size", &tsched_size
) < 0 ||
1391 pa_modargs_get_value_u32(ma
, "tsched_buffer_watermark", &tsched_watermark
) < 0) {
1392 pa_log("Failed to parse buffer metrics");
1396 hwbuf_size
= frag_size
* nfrags
;
1397 period_frames
= frag_size
/frame_size
;
1398 tsched_frames
= tsched_size
/frame_size
;
1400 if (pa_modargs_get_value_boolean(ma
, "mmap", &use_mmap
) < 0) {
1401 pa_log("Failed to parse mmap argument.");
1405 if (pa_modargs_get_value_boolean(ma
, "tsched", &use_tsched
) < 0) {
1406 pa_log("Failed to parse timer_scheduling argument.");
1410 if (pa_modargs_get_value_boolean(ma
, "ignore_dB", &ignore_dB
) < 0) {
1411 pa_log("Failed to parse ignore_dB argument.");
1415 if (use_tsched
&& !pa_rtclock_hrtimer()) {
1416 pa_log_notice("Disabling timer-based scheduling because high-resolution timers are not available from the kernel.");
1420 u
= pa_xnew0(struct userdata
, 1);
1423 u
->use_mmap
= use_mmap
;
1424 u
->use_tsched
= use_tsched
;
1425 u
->rtpoll
= pa_rtpoll_new();
1426 pa_thread_mq_init(&u
->thread_mq
, m
->core
->mainloop
, u
->rtpoll
);
1428 u
->smoother
= pa_smoother_new(
1429 DEFAULT_TSCHED_WATERMARK_USEC
*2,
1430 DEFAULT_TSCHED_WATERMARK_USEC
*2,
1437 dev_id
= pa_modargs_get_value(
1439 pa_modargs_get_value(ma
, "device", DEFAULT_DEVICE
));
1441 if (reserve_init(u
, dev_id
) < 0)
1444 if (reserve_monitor_init(u
, dev_id
) < 0)
1452 if (!(dev_id
= pa_modargs_get_value(ma
, "device_id", NULL
))) {
1453 pa_log("device_id= not set");
1457 if (!(u
->pcm_handle
= pa_alsa_open_by_device_id_mapping(
1461 SND_PCM_STREAM_CAPTURE
,
1462 &nfrags
, &period_frames
, tsched_frames
,
1466 } else if ((dev_id
= pa_modargs_get_value(ma
, "device_id", NULL
))) {
1468 if (!(profile_set
= pa_alsa_profile_set_new(NULL
, &map
)))
1471 if (!(u
->pcm_handle
= pa_alsa_open_by_device_id_auto(
1475 SND_PCM_STREAM_CAPTURE
,
1476 &nfrags
, &period_frames
, tsched_frames
,
1477 &b
, &d
, profile_set
, &mapping
)))
1482 if (!(u
->pcm_handle
= pa_alsa_open_by_device_string(
1483 pa_modargs_get_value(ma
, "device", DEFAULT_DEVICE
),
1486 SND_PCM_STREAM_CAPTURE
,
1487 &nfrags
, &period_frames
, tsched_frames
,
1492 pa_assert(u
->device_name
);
1493 pa_log_info("Successfully opened device %s.", u
->device_name
);
1495 if (pa_alsa_pcm_is_modem(u
->pcm_handle
)) {
1496 pa_log_notice("Device %s is modem, refusing further initialization.", u
->device_name
);
1501 pa_log_info("Selected mapping '%s' (%s).", mapping
->description
, mapping
->name
);
1503 if (use_mmap
&& !b
) {
1504 pa_log_info("Device doesn't support mmap(), falling back to UNIX read/write mode.");
1505 u
->use_mmap
= use_mmap
= FALSE
;
1508 if (use_tsched
&& (!b
|| !d
)) {
1509 pa_log_info("Cannot enable timer-based scheduling, falling back to sound IRQ scheduling.");
1510 u
->use_tsched
= use_tsched
= FALSE
;
1513 if (use_tsched
&& !pa_alsa_pcm_is_hw(u
->pcm_handle
)) {
1514 pa_log_info("Device is not a hardware device, disabling timer-based scheduling.");
1515 u
->use_tsched
= use_tsched
= FALSE
;
1519 pa_log_info("Successfully enabled mmap() mode.");
1522 pa_log_info("Successfully enabled timer-based scheduling mode.");
1524 /* ALSA might tweak the sample spec, so recalculate the frame size */
1525 frame_size
= pa_frame_size(&ss
);
1527 find_mixer(u
, mapping
, pa_modargs_get_value(ma
, "control", NULL
), ignore_dB
);
1529 pa_source_new_data_init(&data
);
1530 data
.driver
= driver
;
1533 set_source_name(&data
, ma
, dev_id
, u
->device_name
, mapping
);
1534 pa_source_new_data_set_sample_spec(&data
, &ss
);
1535 pa_source_new_data_set_channel_map(&data
, &map
);
1537 pa_alsa_init_proplist_pcm(m
->core
, data
.proplist
, u
->pcm_handle
);
1538 pa_proplist_sets(data
.proplist
, PA_PROP_DEVICE_STRING
, u
->device_name
);
1539 pa_proplist_setf(data
.proplist
, PA_PROP_DEVICE_BUFFERING_BUFFER_SIZE
, "%lu", (unsigned long) (period_frames
* frame_size
* nfrags
));
1540 pa_proplist_setf(data
.proplist
, PA_PROP_DEVICE_BUFFERING_FRAGMENT_SIZE
, "%lu", (unsigned long) (period_frames
* frame_size
));
1541 pa_proplist_sets(data
.proplist
, PA_PROP_DEVICE_ACCESS_MODE
, u
->use_tsched
? "mmap+timer" : (u
->use_mmap
? "mmap" : "serial"));
1544 pa_proplist_sets(data
.proplist
, PA_PROP_DEVICE_PROFILE_NAME
, mapping
->name
);
1545 pa_proplist_sets(data
.proplist
, PA_PROP_DEVICE_PROFILE_DESCRIPTION
, mapping
->description
);
1548 pa_alsa_init_description(data
.proplist
);
1550 if (u
->control_device
)
1551 pa_alsa_init_proplist_ctl(data
.proplist
, u
->control_device
);
1553 if (pa_modargs_get_proplist(ma
, "source_properties", data
.proplist
, PA_UPDATE_REPLACE
) < 0) {
1554 pa_log("Invalid properties");
1555 pa_source_new_data_done(&data
);
1559 if (u
->mixer_path_set
)
1560 pa_alsa_add_ports(&data
.ports
, u
->mixer_path_set
);
1562 u
->source
= pa_source_new(m
->core
, &data
, PA_SOURCE_HARDWARE
|PA_SOURCE_LATENCY
|(u
->use_tsched
? PA_SOURCE_DYNAMIC_LATENCY
: 0));
1563 pa_source_new_data_done(&data
);
1566 pa_log("Failed to create source object");
1570 u
->source
->parent
.process_msg
= source_process_msg
;
1571 u
->source
->update_requested_latency
= source_update_requested_latency_cb
;
1572 u
->source
->set_state
= source_set_state_cb
;
1573 u
->source
->set_port
= source_set_port_cb
;
1574 u
->source
->userdata
= u
;
1576 pa_source_set_asyncmsgq(u
->source
, u
->thread_mq
.inq
);
1577 pa_source_set_rtpoll(u
->source
, u
->rtpoll
);
1579 u
->frame_size
= frame_size
;
1580 u
->fragment_size
= frag_size
= (uint32_t) (period_frames
* frame_size
);
1581 u
->nfragments
= nfrags
;
1582 u
->hwbuf_size
= u
->fragment_size
* nfrags
;
1583 u
->tsched_watermark
= pa_usec_to_bytes_round_up(pa_bytes_to_usec_round_up(tsched_watermark
, &requested_ss
), &u
->source
->sample_spec
);
1584 pa_cvolume_mute(&u
->hardware_volume
, u
->source
->sample_spec
.channels
);
1586 pa_log_info("Using %u fragments of size %lu bytes, buffer time is %0.2fms",
1587 nfrags
, (long unsigned) u
->fragment_size
,
1588 (double) pa_bytes_to_usec(u
->hwbuf_size
, &ss
) / PA_USEC_PER_MSEC
);
1590 if (u
->use_tsched
) {
1591 u
->watermark_step
= pa_usec_to_bytes(TSCHED_WATERMARK_STEP_USEC
, &u
->source
->sample_spec
);
1593 fix_min_sleep_wakeup(u
);
1594 fix_tsched_watermark(u
);
1596 pa_source_set_latency_range(u
->source
,
1598 pa_bytes_to_usec(u
->hwbuf_size
, &ss
));
1600 pa_log_info("Time scheduling watermark is %0.2fms",
1601 (double) pa_bytes_to_usec(u
->tsched_watermark
, &ss
) / PA_USEC_PER_MSEC
);
1603 pa_source_set_fixed_latency(u
->source
, pa_bytes_to_usec(u
->hwbuf_size
, &ss
));
1607 if (update_sw_params(u
) < 0)
1610 if (setup_mixer(u
, ignore_dB
) < 0)
1613 pa_alsa_dump(PA_LOG_DEBUG
, u
->pcm_handle
);
1615 if (!(u
->thread
= pa_thread_new(thread_func
, u
))) {
1616 pa_log("Failed to create thread.");
1619 /* Get initial mixer settings */
1620 if (data
.volume_is_set
) {
1621 if (u
->source
->set_volume
)
1622 u
->source
->set_volume(u
->source
);
1624 if (u
->source
->get_volume
)
1625 u
->source
->get_volume(u
->source
);
1628 if (data
.muted_is_set
) {
1629 if (u
->source
->set_mute
)
1630 u
->source
->set_mute(u
->source
);
1632 if (u
->source
->get_mute
)
1633 u
->source
->get_mute(u
->source
);
1636 pa_source_put(u
->source
);
1639 pa_alsa_profile_set_free(profile_set
);
1649 pa_alsa_profile_set_free(profile_set
);
1654 static void userdata_free(struct userdata
*u
) {
1658 pa_source_unlink(u
->source
);
1661 pa_asyncmsgq_send(u
->thread_mq
.inq
, NULL
, PA_MESSAGE_SHUTDOWN
, NULL
, 0, NULL
);
1662 pa_thread_free(u
->thread
);
1665 pa_thread_mq_done(&u
->thread_mq
);
1668 pa_source_unref(u
->source
);
1670 if (u
->alsa_rtpoll_item
)
1671 pa_rtpoll_item_free(u
->alsa_rtpoll_item
);
1674 pa_rtpoll_free(u
->rtpoll
);
1676 if (u
->pcm_handle
) {
1677 snd_pcm_drop(u
->pcm_handle
);
1678 snd_pcm_close(u
->pcm_handle
);
1682 pa_alsa_fdlist_free(u
->mixer_fdl
);
1684 if (u
->mixer_path_set
)
1685 pa_alsa_path_set_free(u
->mixer_path_set
);
1686 else if (u
->mixer_path
)
1687 pa_alsa_path_free(u
->mixer_path
);
1689 if (u
->mixer_handle
)
1690 snd_mixer_close(u
->mixer_handle
);
1693 pa_smoother_free(u
->smoother
);
1698 pa_xfree(u
->device_name
);
1699 pa_xfree(u
->control_device
);
1703 void pa_alsa_source_free(pa_source
*s
) {
1706 pa_source_assert_ref(s
);
1707 pa_assert_se(u
= s
->userdata
);