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sound: Add a new stop_play() method

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At present there is no positive indication that U-Boot has finished
sending sound data. This means that it is not possible to power down an
audio codec, for example. Add a new method that is called once all sound
data has been sent.

Add a new method for this, called when the sound_play() call is done.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass
2020-02-03 07:36:06 -07:00
parent 3ff6fe5fab
commit 3062cd17af
5 changed files with 51 additions and 1 deletions
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21
drivers/sound/sandbox.c
View File

@@ -26,7 +26,8 @@ struct sandbox_i2s_priv {
};
struct sandbox_sound_priv {
int setup_called;
int setup_called; /* Incremented when setup() method is called */
bool active; /* TX data is being sent */
int sum; /* Use to sum the provided audio data */
bool allow_beep; /* true to allow the start_beep() interface */
int frequency_hz; /* Beep frequency if active, else 0 */
@@ -59,6 +60,13 @@ int sandbox_get_setup_called(struct udevice *dev)
return priv->setup_called;
}
int sandbox_get_sound_active(struct udevice *dev)
{
struct sandbox_sound_priv *priv = dev_get_priv(dev);
return priv->active;
}
int sandbox_get_sound_sum(struct udevice *dev)
{
struct sandbox_sound_priv *priv = dev_get_priv(dev);
@@ -163,6 +171,16 @@ static int sandbox_sound_play(struct udevice *dev, void *data, uint data_size)
return i2s_tx_data(uc_priv->i2s, data, data_size);
}
static int sandbox_sound_stop_play(struct udevice *dev)
{
struct sandbox_sound_priv *priv = dev_get_priv(dev);
sandbox_sdl_sound_stop();
priv->active = false;
return 0;
}
int sandbox_sound_start_beep(struct udevice *dev, int frequency_hz)
{
struct sandbox_sound_priv *priv = dev_get_priv(dev);
@@ -228,6 +246,7 @@ U_BOOT_DRIVER(sandbox_i2s) = {
static const struct sound_ops sandbox_sound_ops = {
.setup = sandbox_sound_setup,
.play = sandbox_sound_play,
.stop_play = sandbox_sound_stop_play,
.start_beep = sandbox_sound_start_beep,
.stop_beep = sandbox_sound_stop_beep,
};

11
drivers/sound/sound-uclass.c
View File

@@ -31,6 +31,16 @@ int sound_play(struct udevice *dev, void *data, uint data_size)
return ops->play(dev, data, data_size);
}
int sound_stop_play(struct udevice *dev)
{
struct sound_ops *ops = sound_get_ops(dev);
if (!ops->play)
return -ENOSYS;
return ops->stop_play(dev);
}
int sound_start_beep(struct udevice *dev, int frequency_hz)
{
struct sound_ops *ops = sound_get_ops(dev);
@@ -97,6 +107,7 @@ int sound_beep(struct udevice *dev, int msecs, int frequency_hz)
ret = sound_play(dev, data, size);
}
sound_stop_play(dev);
free(data);