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# SPDX-License-Identifier: GPL-2.0-only
menuconfig SOUND
bool "Sound drivers"
select POLLER
help
Say Y here for sound support. At the moment that's just beep tones.
Tones are played asynchronously in a poller. Check the beep command
for how to exercise the API.
if SOUND
config SOUND_SDL
bool "SDL sound driver for sandbox"
depends on SANDBOX && OFDEVICE
select SDL
config PWM_BEEPER
bool "PWM beeper support"
depends on PWM && OFDEVICE
help
Say Y here to get support for PWM based beeper devices.
config GPIO_BEEPER
bool "GPIO beeper support"
depends on GPIOLIB && OFDEVICE
help
Say Y here to get support for GPIO based beeper devices.
config SYNTH_SQUARES
bool "Synthesize square waves only"
help
For beeping on PCM sound cards, barebox needs to synthesize samples,
which can take too much poller time for crisp playback and/or quick
booting. If your playback stutters, say Y here. This will have all
synthesizers output a gain-adjusted square wave instead, which is
less time-consuming to compute.
endif
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