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 ---
arch/sandbox/include/asm/test.h | 7 +++++++ drivers/sound/sandbox.c | 21 ++++++++++++++++++++- drivers/sound/sound-uclass.c | 11 +++++++++++ include/sound.h | 12 ++++++++++++ test/dm/sound.c | 1 + 5 files changed, 51 insertions(+), 1 deletion(-)
diff --git a/arch/sandbox/include/asm/test.h b/arch/sandbox/include/asm/test.h index 2421922c9e..92ff494453 100644 --- a/arch/sandbox/include/asm/test.h +++ b/arch/sandbox/include/asm/test.h @@ -165,6 +165,13 @@ int sandbox_get_i2s_sum(struct udevice *dev); */ int sandbox_get_setup_called(struct udevice *dev);
+/** + * sandbox_get_sound_active() - Returns whether sound play is in progress + * + * @return true if active, false if not + */ +int sandbox_get_sound_active(struct udevice *dev); + /** * sandbox_get_sound_sum() - Read back the sum of the sound data so far * diff --git a/drivers/sound/sandbox.c b/drivers/sound/sandbox.c index 363c687baf..9034a8385a 100644 --- a/drivers/sound/sandbox.c +++ b/drivers/sound/sandbox.c @@ -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, }; diff --git a/drivers/sound/sound-uclass.c b/drivers/sound/sound-uclass.c index d49f29bcd5..c213472d60 100644 --- a/drivers/sound/sound-uclass.c +++ b/drivers/sound/sound-uclass.c @@ -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);
diff --git a/include/sound.h b/include/sound.h index 47de9fa3ed..71bd850652 100644 --- a/include/sound.h +++ b/include/sound.h @@ -68,6 +68,18 @@ struct sound_ops { */ int (*play)(struct udevice *dev, void *data, uint data_size);
+ /** + * stop_play() - Indicate that there is no more data coming + * + * This is called once play() has finished sending all the data to the + * output device. This may be used to tell the hardware to turn off the + * codec, for example. + * + * @dev: Sound device + * @return 0 if OK, -ve on error + */ + int (*stop_play)(struct udevice *dev); + /** * start_beep() - Start beeping (optional) * diff --git a/test/dm/sound.c b/test/dm/sound.c index 3767abbd1c..aa5368f05b 100644 --- a/test/dm/sound.c +++ b/test/dm/sound.c @@ -28,6 +28,7 @@ static int dm_test_sound(struct unit_test_state *uts) ut_asserteq(4560, sandbox_get_sound_sum(dev)); ut_assertok(sound_beep(dev, 1, 100)); ut_asserteq(9120, sandbox_get_sound_sum(dev)); + ut_asserteq(false, sandbox_get_sound_active(dev));
return 0; }