static size_t check_left_to_record(struct userdata *u, snd_pcm_sframes_t n) {
size_t left_to_record;
+ size_t rec_space = u->hwbuf_size - (size_t) u->hwbuf_unused_frames*u->frame_size;
- if ((size_t) n*u->frame_size < u->hwbuf_size)
- left_to_record = u->hwbuf_size - ((size_t) n*u->frame_size);
+ if ((size_t) n*u->frame_size < rec_space)
+ left_to_record = rec_space - ((size_t) n*u->frame_size);
else
left_to_record = 0;
return left_to_record;
}
-static int mmap_read(struct userdata *u, pa_usec_t *sleep_usec) {
+static int mmap_read(struct userdata *u, pa_usec_t *sleep_usec, pa_bool_t polled) {
int work_done = 0;
pa_usec_t max_sleep_usec = 0, process_usec = 0;
size_t left_to_record;
snd_pcm_hwsync(u->pcm_handle);
- if (PA_UNLIKELY((n = snd_pcm_avail_update(u->pcm_handle)) < 0)) {
+ if (PA_UNLIKELY((n = pa_alsa_safe_avail_update(u->pcm_handle, u->hwbuf_size, &u->source->sample_spec)) < 0)) {
if ((r = try_recover(u, "snd_pcm_avail_update", (int) n)) == 0)
continue;
left_to_record = check_left_to_record(u, n);
if (u->use_tsched)
- if (pa_bytes_to_usec(left_to_record, &u->source->sample_spec) > process_usec+max_sleep_usec/2)
+ if (!polled &&
+ pa_bytes_to_usec(left_to_record, &u->source->sample_spec) > process_usec+max_sleep_usec/2)
break;
- if (PA_UNLIKELY(n <= 0))
+ if (PA_UNLIKELY(n <= 0)) {
+
+ if (polled)
+ pa_log("ALSA woke us up to read new data from the device, but there was actually nothing to read! "
+ "Most likely this is an ALSA driver bug. Please report this issue to the PulseAudio device.");
+
break;
+ }
+
+ polled = FALSE;
for (;;) {
int err;
/* pa_log_debug("%lu frames to read", (unsigned long) frames); */
- if (PA_UNLIKELY((err = snd_pcm_mmap_begin(u->pcm_handle, &areas, &offset, &frames)) < 0)) {
+ if (PA_UNLIKELY((err = pa_alsa_safe_mmap_begin(u->pcm_handle, &areas, &offset, &frames, u->hwbuf_size, &u->source->sample_spec)) < 0)) {
if ((r = try_recover(u, "snd_pcm_mmap_begin", err)) == 0)
continue;
return work_done;
}
-static int unix_read(struct userdata *u, pa_usec_t *sleep_usec) {
+static int unix_read(struct userdata *u, pa_usec_t *sleep_usec, pa_bool_t polled) {
int work_done = 0;
pa_usec_t max_sleep_usec = 0, process_usec = 0;
size_t left_to_record;
snd_pcm_hwsync(u->pcm_handle);
- if (PA_UNLIKELY((n = snd_pcm_avail_update(u->pcm_handle)) < 0)) {
+ if (PA_UNLIKELY((n = pa_alsa_safe_avail_update(u->pcm_handle, u->hwbuf_size, &u->source->sample_spec)) < 0)) {
if ((r = try_recover(u, "snd_pcm_avail_update", (int) n)) == 0)
continue;
left_to_record = check_left_to_record(u, n);
if (u->use_tsched)
- if (pa_bytes_to_usec(left_to_record, &u->source->sample_spec) > process_usec+max_sleep_usec/2)
+ if (!polled &&
+ pa_bytes_to_usec(left_to_record, &u->source->sample_spec) > process_usec+max_sleep_usec/2)
break;
- if (PA_UNLIKELY(n <= 0))
+ if (PA_UNLIKELY(n <= 0)) {
+
+ if (polled)
+ pa_log("ALSA woke us up to read new data from the device, but there was actually nothing to read! "
+ "Most likely this is an ALSA driver bug. Please report this issue to the PulseAudio developers.");
+
return work_done;
+ }
+
+ polled = FALSE;
for (;;) {
void *p;
if ((latency = pa_source_get_requested_latency_within_thread(u->source)) != (pa_usec_t) -1) {
size_t b;
- pa_log_debug("latency set to %0.2f", (double) latency / PA_USEC_PER_MSEC);
+ pa_log_debug("latency set to %0.2fms", (double) latency / PA_USEC_PER_MSEC);
b = pa_usec_to_bytes(latency, &u->source->sample_spec);
u->hwbuf_unused_frames = (snd_pcm_sframes_t)
(PA_LIKELY(b < u->hwbuf_size) ?
((u->hwbuf_size - b) / u->frame_size) : 0);
-
- fix_tsched_watermark(u);
}
+
+ fix_tsched_watermark(u);
}
pa_log_debug("hwbuf_unused_frames=%lu", (unsigned long) u->hwbuf_unused_frames);
}
if (nfrags != u->nfragments || period_size*u->frame_size != u->fragment_size) {
- pa_log_warn("Resume failed, couldn't restore original fragment settings.");
+ pa_log_warn("Resume failed, couldn't restore original fragment settings. (Old: %lu*%lu, New %lu*%lu)",
+ (unsigned long) u->nfragments, (unsigned long) u->fragment_size,
+ (unsigned long) nfrags, period_size * u->frame_size);
goto fail;
}
return 0;
}
+static pa_volume_t from_alsa_volume(struct userdata *u, long alsa_vol) {
+
+ return (pa_volume_t) round(((double) (alsa_vol - u->hw_volume_min) * PA_VOLUME_NORM) /
+ (double) (u->hw_volume_max - u->hw_volume_min));
+}
+
+static long to_alsa_volume(struct userdata *u, pa_volume_t vol) {
+ long alsa_vol;
+
+ alsa_vol = (long) round(((double) vol * (double) (u->hw_volume_max - u->hw_volume_min))
+ / PA_VOLUME_NORM) + u->hw_volume_min;
+
+ return PA_CLAMP_UNLIKELY(alsa_vol, u->hw_volume_min, u->hw_volume_max);
+}
+
static int source_get_volume_cb(pa_source *s) {
struct userdata *u = s->userdata;
int err;
VALGRIND_MAKE_MEM_DEFINED(&alsa_vol, sizeof(alsa_vol));
#endif
- r.values[i] = pa_sw_volume_from_dB((double) alsa_vol / 100.0);
+ r.values[i] = pa_sw_volume_from_dB((double) (alsa_vol - u->hw_dB_max) / 100.0);
} else {
if ((err = snd_mixer_selem_get_capture_volume(u->mixer_elem, u->mixer_map[i], &alsa_vol)) < 0)
goto fail;
- r.values[i] = (pa_volume_t) round(((double) (alsa_vol - u->hw_volume_min) * PA_VOLUME_NORM) / (double) (u->hw_volume_max - u->hw_volume_min));
+ r.values[i] = from_alsa_volume(u, alsa_vol);
}
}
} else {
long alsa_vol;
- pa_assert(u->hw_dB_supported);
+ if (u->hw_dB_supported) {
- if ((err = snd_mixer_selem_get_capture_dB(u->mixer_elem, SND_MIXER_SCHN_MONO, &alsa_vol)) < 0)
- goto fail;
+ if ((err = snd_mixer_selem_get_capture_dB(u->mixer_elem, SND_MIXER_SCHN_MONO, &alsa_vol)) < 0)
+ goto fail;
#ifdef HAVE_VALGRIND_MEMCHECK_H
- VALGRIND_MAKE_MEM_DEFINED(&alsa_vol, sizeof(alsa_vol));
+ VALGRIND_MAKE_MEM_DEFINED(&alsa_vol, sizeof(alsa_vol));
#endif
- pa_cvolume_set(&r, s->sample_spec.channels, pa_sw_volume_from_dB((double) alsa_vol / 100.0));
+ pa_cvolume_set(&r, s->sample_spec.channels, pa_sw_volume_from_dB((double) (alsa_vol - u->hw_dB_max) / 100.0));
+
+ } else {
+
+ if ((err = snd_mixer_selem_get_capture_volume(u->mixer_elem, SND_MIXER_SCHN_MONO, &alsa_vol)) < 0)
+ goto fail;
+
+ pa_cvolume_set(&r, s->sample_spec.channels, from_alsa_volume(u, alsa_vol));
+ }
}
pa_log_debug("Read hardware volume: %s", pa_cvolume_snprint(t, sizeof(t), &r));
pa_assert(u);
pa_assert(u->mixer_elem);
- if (u->mixer_seperate_channels) {
+ if (u->mixer_seperate_channels) {
r.channels = s->sample_spec.channels;
if (u->hw_dB_supported) {
alsa_vol = (long) (pa_sw_volume_to_dB(vol) * 100);
+ alsa_vol += u->hw_dB_max;
alsa_vol = PA_CLAMP_UNLIKELY(alsa_vol, u->hw_dB_min, u->hw_dB_max);
if ((err = snd_mixer_selem_set_capture_dB(u->mixer_elem, u->mixer_map[i], alsa_vol, 1)) < 0)
if ((err = snd_mixer_selem_get_capture_dB(u->mixer_elem, u->mixer_map[i], &alsa_vol)) < 0)
goto fail;
- r.values[i] = pa_sw_volume_from_dB((double) alsa_vol / 100.0);
- } else {
+ r.values[i] = pa_sw_volume_from_dB((double) (alsa_vol - u->hw_dB_max) / 100.0);
- alsa_vol = (long) round(((double) vol * (double) (u->hw_volume_max - u->hw_volume_min)) / PA_VOLUME_NORM) + u->hw_volume_min;
- alsa_vol = PA_CLAMP_UNLIKELY(alsa_vol, u->hw_volume_min, u->hw_volume_max);
+ } else {
+ alsa_vol = to_alsa_volume(u, vol);
if ((err = snd_mixer_selem_set_capture_volume(u->mixer_elem, u->mixer_map[i], alsa_vol)) < 0)
goto fail;
if ((err = snd_mixer_selem_get_capture_volume(u->mixer_elem, u->mixer_map[i], &alsa_vol)) < 0)
goto fail;
- r.values[i] = (pa_volume_t) round(((double) (alsa_vol - u->hw_volume_min) * PA_VOLUME_NORM) / (double) (u->hw_volume_max - u->hw_volume_min));
+ r.values[i] = from_alsa_volume(u, alsa_vol);
}
}
pa_volume_t vol;
long alsa_vol;
- pa_assert(u->hw_dB_supported);
-
vol = pa_cvolume_max(&s->volume);
- alsa_vol = (long) (pa_sw_volume_to_dB(vol) * 100);
- alsa_vol = PA_CLAMP_UNLIKELY(alsa_vol, u->hw_dB_min, u->hw_dB_max);
+ if (u->hw_dB_supported) {
+ alsa_vol = (long) (pa_sw_volume_to_dB(vol) * 100);
+ alsa_vol += u->hw_dB_max;
+ alsa_vol = PA_CLAMP_UNLIKELY(alsa_vol, u->hw_dB_min, u->hw_dB_max);
- if ((err = snd_mixer_selem_set_capture_dB_all(u->mixer_elem, alsa_vol, 1)) < 0)
- goto fail;
+ if ((err = snd_mixer_selem_set_capture_dB_all(u->mixer_elem, alsa_vol, 1)) < 0)
+ goto fail;
- if ((err = snd_mixer_selem_get_capture_dB(u->mixer_elem, SND_MIXER_SCHN_MONO, &alsa_vol)) < 0)
- goto fail;
+ if ((err = snd_mixer_selem_get_capture_dB(u->mixer_elem, SND_MIXER_SCHN_MONO, &alsa_vol)) < 0)
+ goto fail;
+
+ pa_cvolume_set(&r, s->volume.channels, pa_sw_volume_from_dB((double) (alsa_vol - u->hw_dB_max) / 100.0));
+
+ } else {
+ alsa_vol = to_alsa_volume(u, vol);
+
+ if ((err = snd_mixer_selem_set_capture_volume_all(u->mixer_elem, alsa_vol)) < 0)
+ goto fail;
+
+ if ((err = snd_mixer_selem_get_capture_volume(u->mixer_elem, SND_MIXER_SCHN_MONO, &alsa_vol)) < 0)
+ goto fail;
- pa_cvolume_set(&r, s->volume.channels, pa_sw_volume_from_dB((double) alsa_vol / 100.0));
+ pa_cvolume_set(&r, s->sample_spec.channels, from_alsa_volume(u, alsa_vol));
+ }
}
u->hardware_volume = r;
/* Match exactly what the user requested by software */
- pa_alsa_volume_divide(&r, &s->volume);
+ pa_sw_cvolume_divide(&r, &s->volume, &r);
pa_source_set_soft_volume(s, &r);
pa_log_debug("Requested volume: %s", pa_cvolume_snprint(t, sizeof(t), &s->volume));
static void thread_func(void *userdata) {
struct userdata *u = userdata;
+ unsigned short revents = 0;
pa_assert(u);
pa_usec_t sleep_usec = 0;
if (u->use_mmap)
- work_done = mmap_read(u, &sleep_usec);
+ work_done = mmap_read(u, &sleep_usec, revents & POLLIN);
else
- work_done = unix_read(u, &sleep_usec);
+ work_done = unix_read(u, &sleep_usec, revents & POLLIN);
if (work_done < 0)
goto fail;
pa_rtpoll_set_timer_disabled(u->rtpoll);
/* Hmm, nothing to do. Let's sleep */
- if ((ret = pa_rtpoll_run(u->rtpoll, 1)) < 0)
+ if ((ret = pa_rtpoll_run(u->rtpoll, TRUE)) < 0)
goto fail;
if (ret == 0)
/* Tell ALSA about this and process its response */
if (PA_SOURCE_IS_OPENED(u->source->thread_info.state)) {
struct pollfd *pollfd;
- unsigned short revents = 0;
int err;
unsigned n;
goto fail;
}
- if (revents & (POLLERR|POLLNVAL|POLLHUP)) {
+ if (revents & (POLLOUT|POLLERR|POLLNVAL|POLLHUP|POLLPRI)) {
if (pa_alsa_recover_from_poll(u->pcm_handle, revents) < 0)
goto fail;
}
if (revents && u->use_tsched)
- pa_log_debug("Wakeup from ALSA! (%i)", revents);
- }
+ pa_log_debug("Wakeup from ALSA!%s%s", (revents & POLLIN) ? " INPUT" : "", (revents & POLLOUT) ? " OUTPUT" : "");
+ } else
+ revents = 0;
}
fail:
}
if (found)
- if (!(u->mixer_elem = pa_alsa_find_elem(u->mixer_handle, "Capture", "Mic")))
+ if (!(u->mixer_elem = pa_alsa_find_elem(u->mixer_handle, "Capture", "Mic", FALSE)))
found = FALSE;
if (!found) {
pa_assert(u->mixer_elem);
if (snd_mixer_selem_has_capture_volume(u->mixer_elem)) {
- pa_bool_t suitable = TRUE;
+ pa_bool_t suitable = FALSE;
- if (snd_mixer_selem_get_capture_volume_range(u->mixer_elem, &u->hw_volume_min, &u->hw_volume_max) < 0) {
+ if (snd_mixer_selem_get_capture_volume_range(u->mixer_elem, &u->hw_volume_min, &u->hw_volume_max) < 0)
pa_log_info("Failed to get volume range. Falling back to software volume control.");
- suitable = FALSE;
- } else {
+ else if (u->hw_volume_min >= u->hw_volume_max)
+ 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);
+ else {
pa_log_info("Volume ranges from %li to %li.", u->hw_volume_min, u->hw_volume_max);
- pa_assert(u->hw_volume_min < u->hw_volume_max);
+ suitable = TRUE;
}
- if (snd_mixer_selem_get_capture_dB_range(u->mixer_elem, &u->hw_dB_min, &u->hw_dB_max) < 0)
- pa_log_info("Mixer doesn't support dB information.");
- else {
+ if (suitable) {
+ if (snd_mixer_selem_get_capture_dB_range(u->mixer_elem, &u->hw_dB_min, &u->hw_dB_max) < 0)
+ pa_log_info("Mixer doesn't support dB information.");
+ else {
#ifdef HAVE_VALGRIND_MEMCHECK_H
- VALGRIND_MAKE_MEM_DEFINED(&u->hw_dB_min, sizeof(u->hw_dB_min));
- VALGRIND_MAKE_MEM_DEFINED(&u->hw_dB_max, sizeof(u->hw_dB_max));
+ VALGRIND_MAKE_MEM_DEFINED(&u->hw_dB_min, sizeof(u->hw_dB_min));
+ VALGRIND_MAKE_MEM_DEFINED(&u->hw_dB_max, sizeof(u->hw_dB_max));
#endif
- 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);
- pa_assert(u->hw_dB_min < u->hw_dB_max);
- u->hw_dB_supported = TRUE;
- }
+ if (u->hw_dB_min >= u->hw_dB_max)
+ 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);
+ else {
+ 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);
+ u->hw_dB_supported = TRUE;
- if (suitable &&
- !u->hw_dB_supported &&
- u->hw_volume_max - u->hw_volume_min < 3) {
+ if (u->hw_dB_max > 0) {
+ u->source->base_volume = pa_sw_volume_from_dB(- (double) u->hw_dB_max/100.0);
+ pa_log_info("Fixing base volume to %0.2f dB", pa_sw_volume_to_dB(u->source->base_volume));
+ } else
+ pa_log_info("No particular base volume set, fixing to 0 dB");
- pa_log_info("Device has less than 4 volume levels. Falling back to software volume control.");
- suitable = FALSE;
- }
+ }
+ }
+ if (!u->hw_dB_supported &&
+ u->hw_volume_max - u->hw_volume_min < 3) {
+
+ pa_log_info("Device has less than 4 volume levels. Falling back to software volume control.");
+ suitable = FALSE;
+ }
+ }
if (suitable) {
u->mixer_seperate_channels = pa_alsa_calc_mixer_map(u->mixer_elem, &map, u->mixer_map, FALSE) >= 0;