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-rw-r--r--sound/drivers/Kconfig1
-rw-r--r--sound/drivers/aloop.c36
-rw-r--r--sound/drivers/dummy.c73
3 files changed, 90 insertions, 20 deletions
diff --git a/sound/drivers/Kconfig b/sound/drivers/Kconfig
index fe5ae09ffccb..5e4384137a76 100644
--- a/sound/drivers/Kconfig
+++ b/sound/drivers/Kconfig
@@ -35,7 +35,6 @@ config SND_PCSP
tristate "PC-Speaker support (READ HELP!)"
depends on PCSPKR_PLATFORM && X86 && HIGH_RES_TIMERS
depends on INPUT
- depends on EXPERIMENTAL
select SND_PCM
help
If you don't have a sound card in your computer, you can include a
diff --git a/sound/drivers/aloop.c b/sound/drivers/aloop.c
index 0fe6d64ff840..1904046686e2 100644
--- a/sound/drivers/aloop.c
+++ b/sound/drivers/aloop.c
@@ -120,7 +120,6 @@ struct loopback_pcm {
unsigned int last_drift;
unsigned long last_jiffies;
struct timer_list timer;
- spinlock_t timer_lock;
};
static struct platform_device *devices[SNDRV_CARDS];
@@ -166,12 +165,12 @@ static inline unsigned int get_rate_shift(struct loopback_pcm *dpcm)
return get_setup(dpcm)->rate_shift;
}
+/* call in cable->lock */
static void loopback_timer_start(struct loopback_pcm *dpcm)
{
unsigned long tick;
unsigned int rate_shift = get_rate_shift(dpcm);
- spin_lock(&dpcm->timer_lock);
if (rate_shift != dpcm->pcm_rate_shift) {
dpcm->pcm_rate_shift = rate_shift;
dpcm->period_size_frac = frac_pos(dpcm, dpcm->pcm_period_size);
@@ -184,15 +183,13 @@ static void loopback_timer_start(struct loopback_pcm *dpcm)
tick = (tick + dpcm->pcm_bps - 1) / dpcm->pcm_bps;
dpcm->timer.expires = jiffies + tick;
add_timer(&dpcm->timer);
- spin_unlock(&dpcm->timer_lock);
}
+/* call in cable->lock */
static inline void loopback_timer_stop(struct loopback_pcm *dpcm)
{
- spin_lock(&dpcm->timer_lock);
del_timer(&dpcm->timer);
dpcm->timer.expires = 0;
- spin_unlock(&dpcm->timer_lock);
}
#define CABLE_VALID_PLAYBACK (1 << SNDRV_PCM_STREAM_PLAYBACK)
@@ -274,8 +271,8 @@ static int loopback_trigger(struct snd_pcm_substream *substream, int cmd)
spin_lock(&cable->lock);
cable->running |= stream;
cable->pause &= ~stream;
- spin_unlock(&cable->lock);
loopback_timer_start(dpcm);
+ spin_unlock(&cable->lock);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
loopback_active_notify(dpcm);
break;
@@ -283,23 +280,23 @@ static int loopback_trigger(struct snd_pcm_substream *substream, int cmd)
spin_lock(&cable->lock);
cable->running &= ~stream;
cable->pause &= ~stream;
- spin_unlock(&cable->lock);
loopback_timer_stop(dpcm);
+ spin_unlock(&cable->lock);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
loopback_active_notify(dpcm);
break;
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
spin_lock(&cable->lock);
cable->pause |= stream;
- spin_unlock(&cable->lock);
loopback_timer_stop(dpcm);
+ spin_unlock(&cable->lock);
break;
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
spin_lock(&cable->lock);
dpcm->last_jiffies = jiffies;
cable->pause &= ~stream;
- spin_unlock(&cable->lock);
loopback_timer_start(dpcm);
+ spin_unlock(&cable->lock);
break;
default:
return -EINVAL;
@@ -477,6 +474,7 @@ static inline void bytepos_finish(struct loopback_pcm *dpcm,
dpcm->buf_pos %= dpcm->pcm_buffer_size;
}
+/* call in cable->lock */
static unsigned int loopback_pos_update(struct loopback_cable *cable)
{
struct loopback_pcm *dpcm_play =
@@ -485,9 +483,7 @@ static unsigned int loopback_pos_update(struct loopback_cable *cable)
cable->streams[SNDRV_PCM_STREAM_CAPTURE];
unsigned long delta_play = 0, delta_capt = 0;
unsigned int running, count1, count2;
- unsigned long flags;
- spin_lock_irqsave(&cable->lock, flags);
running = cable->running ^ cable->pause;
if (running & (1 << SNDRV_PCM_STREAM_PLAYBACK)) {
delta_play = jiffies - dpcm_play->last_jiffies;
@@ -529,32 +525,39 @@ static unsigned int loopback_pos_update(struct loopback_cable *cable)
bytepos_finish(dpcm_play, count1);
bytepos_finish(dpcm_capt, count1);
unlock:
- spin_unlock_irqrestore(&cable->lock, flags);
return running;
}
static void loopback_timer_function(unsigned long data)
{
struct loopback_pcm *dpcm = (struct loopback_pcm *)data;
- unsigned int running;
+ unsigned long flags;
- running = loopback_pos_update(dpcm->cable);
- if (running & (1 << dpcm->substream->stream)) {
+ spin_lock_irqsave(&dpcm->cable->lock, flags);
+ if (loopback_pos_update(dpcm->cable) & (1 << dpcm->substream->stream)) {
loopback_timer_start(dpcm);
if (dpcm->period_update_pending) {
dpcm->period_update_pending = 0;
+ spin_unlock_irqrestore(&dpcm->cable->lock, flags);
+ /* need to unlock before calling below */
snd_pcm_period_elapsed(dpcm->substream);
+ return;
}
}
+ spin_unlock_irqrestore(&dpcm->cable->lock, flags);
}
static snd_pcm_uframes_t loopback_pointer(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct loopback_pcm *dpcm = runtime->private_data;
+ snd_pcm_uframes_t pos;
+ spin_lock(&dpcm->cable->lock);
loopback_pos_update(dpcm->cable);
- return bytes_to_frames(runtime, dpcm->buf_pos);
+ pos = dpcm->buf_pos;
+ spin_unlock(&dpcm->cable->lock);
+ return bytes_to_frames(runtime, pos);
}
static struct snd_pcm_hardware loopback_pcm_hardware =
@@ -672,7 +675,6 @@ static int loopback_open(struct snd_pcm_substream *substream)
dpcm->substream = substream;
setup_timer(&dpcm->timer, loopback_timer_function,
(unsigned long)dpcm);
- spin_lock_init(&dpcm->timer_lock);
cable = loopback->cables[substream->number][dev];
if (!cable) {
diff --git a/sound/drivers/dummy.c b/sound/drivers/dummy.c
index 54bb6644a598..4f522cf48455 100644
--- a/sound/drivers/dummy.c
+++ b/sound/drivers/dummy.c
@@ -134,6 +134,9 @@ struct snd_dummy {
spinlock_t mixer_lock;
int mixer_volume[MIXER_ADDR_LAST+1][2];
int capture_source[MIXER_ADDR_LAST+1][2];
+ int iobox;
+ struct snd_kcontrol *cd_volume_ctl;
+ struct snd_kcontrol *cd_switch_ctl;
const struct dummy_timer_ops *timer_ops;
};
@@ -817,6 +820,57 @@ static int snd_dummy_capsrc_put(struct snd_kcontrol *kcontrol, struct snd_ctl_el
return change;
}
+static int snd_dummy_iobox_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *info)
+{
+ const char *const names[] = { "None", "CD Player" };
+
+ return snd_ctl_enum_info(info, 1, 2, names);
+}
+
+static int snd_dummy_iobox_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *value)
+{
+ struct snd_dummy *dummy = snd_kcontrol_chip(kcontrol);
+
+ value->value.enumerated.item[0] = dummy->iobox;
+ return 0;
+}
+
+static int snd_dummy_iobox_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *value)
+{
+ struct snd_dummy *dummy = snd_kcontrol_chip(kcontrol);
+ int changed;
+
+ if (value->value.enumerated.item[0] > 1)
+ return -EINVAL;
+
+ changed = value->value.enumerated.item[0] != dummy->iobox;
+ if (changed) {
+ dummy->iobox = value->value.enumerated.item[0];
+
+ if (dummy->iobox) {
+ dummy->cd_volume_ctl->vd[0].access &=
+ ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
+ dummy->cd_switch_ctl->vd[0].access &=
+ ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
+ } else {
+ dummy->cd_volume_ctl->vd[0].access |=
+ SNDRV_CTL_ELEM_ACCESS_INACTIVE;
+ dummy->cd_switch_ctl->vd[0].access |=
+ SNDRV_CTL_ELEM_ACCESS_INACTIVE;
+ }
+
+ snd_ctl_notify(dummy->card, SNDRV_CTL_EVENT_MASK_INFO,
+ &dummy->cd_volume_ctl->id);
+ snd_ctl_notify(dummy->card, SNDRV_CTL_EVENT_MASK_INFO,
+ &dummy->cd_switch_ctl->id);
+ }
+
+ return changed;
+}
+
static struct snd_kcontrol_new snd_dummy_controls[] = {
DUMMY_VOLUME("Master Volume", 0, MIXER_ADDR_MASTER),
DUMMY_CAPSRC("Master Capture Switch", 0, MIXER_ADDR_MASTER),
@@ -827,22 +881,37 @@ DUMMY_CAPSRC("Line Capture Switch", 0, MIXER_ADDR_LINE),
DUMMY_VOLUME("Mic Volume", 0, MIXER_ADDR_MIC),
DUMMY_CAPSRC("Mic Capture Switch", 0, MIXER_ADDR_MIC),
DUMMY_VOLUME("CD Volume", 0, MIXER_ADDR_CD),
-DUMMY_CAPSRC("CD Capture Switch", 0, MIXER_ADDR_CD)
+DUMMY_CAPSRC("CD Capture Switch", 0, MIXER_ADDR_CD),
+{
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "External I/O Box",
+ .info = snd_dummy_iobox_info,
+ .get = snd_dummy_iobox_get,
+ .put = snd_dummy_iobox_put,
+},
};
static int __devinit snd_card_dummy_new_mixer(struct snd_dummy *dummy)
{
struct snd_card *card = dummy->card;
+ struct snd_kcontrol *kcontrol;
unsigned int idx;
int err;
spin_lock_init(&dummy->mixer_lock);
strcpy(card->mixername, "Dummy Mixer");
+ dummy->iobox = 1;
for (idx = 0; idx < ARRAY_SIZE(snd_dummy_controls); idx++) {
- err = snd_ctl_add(card, snd_ctl_new1(&snd_dummy_controls[idx], dummy));
+ kcontrol = snd_ctl_new1(&snd_dummy_controls[idx], dummy);
+ err = snd_ctl_add(card, kcontrol);
if (err < 0)
return err;
+ if (!strcmp(kcontrol->id.name, "CD Volume"))
+ dummy->cd_volume_ctl = kcontrol;
+ else if (!strcmp(kcontrol->id.name, "CD Capture Switch"))
+ dummy->cd_switch_ctl = kcontrol;
+
}
return 0;
}
generated by cgit v1.2.3 (git 2.51.0) at 2025-09-20 21:28:35 +0000