sound: Add a driver for the i8254 beep

[oweals/u-boot.git] / drivers / sound / Kconfig

diff --git a/drivers/sound/Kconfig b/drivers/sound/Kconfig
index 4b893f035b0284b8905205d3c84dfd2875293507..c1847df07faf0eb2914a526db3ccf703e52d8d0b 100644 (file)
--- a/drivers/sound/Kconfig
+++ b/drivers/sound/Kconfig
@@ -40,6 +40,18 @@ config I2S_SAMSUNG
          option provides an implementation for sound_init() and
          sound_play().
 
+config SOUND_I8254
+       bool "Intel i8254 timer / beeper"
+       depends on SOUND
+       help
+         This enables support for a beeper that uses the i8254 timer chip.
+         This can emit beeps at a fixed frequency. It is possible to control
+         the length of the beeps, by turning a beep on, waiting for a period
+         of time, then turning it off.
+
+         This is quite an old feature, called PIT (Programmable Interval
+         Timer), but is nonetheless still available on modern x86 machines.
+
 config SOUND_INTEL_HDA
        bool "Intel HDA audio codec"
        depends on SOUND