diff options
Diffstat (limited to 'include/sound.h')
| -rw-r--r-- | include/sound.h | 46 |
1 files changed, 45 insertions, 1 deletions
diff --git a/include/sound.h b/include/sound.h index b7959cc260..47de9fa3ed 100644 --- a/include/sound.h +++ b/include/sound.h @@ -54,7 +54,7 @@ void sound_create_square_wave(uint sample_rate, unsigned short *data, int size, /* Operations for sound */ struct sound_ops { /** - * setup() - Set up to play a sound + * setup() - Set up to play a sound (optional) */ int (*setup)(struct udevice *dev); @@ -67,6 +67,28 @@ struct sound_ops { * @return 0 if OK, -ve on error */ int (*play)(struct udevice *dev, void *data, uint data_size); + + /** + * start_beep() - Start beeping (optional) + * + * This tells the sound hardware to start a beep. It will continue until + * stopped by sound_stop_beep(). + * + * @dev: Sound device + * @frequency_hz: Beep frequency in hertz + * @return if OK, -ENOSYS if not supported, -ve on error + */ + int (*start_beep)(struct udevice *dev, int frequency_hz); + + /** + * stop_beep() - Stop beeping (optional) + * + * This tells the sound hardware to stop a previously started beep. + * + * @dev: Sound device + * @return if OK, -ve on error + */ + int (*stop_beep)(struct udevice *dev); }; #define sound_get_ops(dev) ((struct sound_ops *)(dev)->driver->ops) @@ -87,6 +109,28 @@ int sound_setup(struct udevice *dev); int sound_beep(struct udevice *dev, int msecs, int frequency_hz); /** + * sound_start_beep() - Start beeping + * + * This tells the sound hardware to start a beep. It will continue until stopped + * by sound_stop_beep(). + * + * @dev: Sound device + * @frequency_hz: Beep frequency in hertz + * @return if OK, -ve on error + */ +int sound_start_beep(struct udevice *dev, int frequency_hz); + +/** + * sound_stop_beep() - Stop beeping + * + * This tells the sound hardware to stop a previously started beep. + * + * @dev: Sound device + * @return if OK, -ve on error + */ +int sound_stop_beep(struct udevice *dev); + +/** * sound_find_codec_i2s() - Called by sound drivers to locate codec and i2s * * This finds the audio codec and i2s devices and puts them in the uclass's |