path: root/sound/soc/codecs/Kconfig
diff options
authorPeter Ujfalusi <peter.ujfalusi@nokia.com>2009-10-15 09:03:56 +0300
committerMark Brown <broonie@opensource.wolfsonmicro.com>2009-10-15 15:02:04 +0100
commitc8bf93f0fe8c5a509a29e30f3bac823fa0f6d96e (patch)
tree2424eb4912787cafcd1fde38711a945cd23fe104 /sound/soc/codecs/Kconfig
parent640fb39e386a0dac9014e5b8a512de0950e30288 (diff)
ASoC: Codec driver for Texas Instruments tlv320dac33 codec
Driver for Texas Instruments TLV320DAC33 (SLAS546) low power stereo audio DAC. TLV320DAC33 is a stereo audio codec with integrated 24KB FIFO for low power audio playback. The digital interface can use I2S, DSP (A or B), Right and Left justified formats. DAC33 has stereo analog input, which can be bypassed to the analog outputs. Regarding to the internal 24KB FIFO the driver implements 'FIFO bypass' mode (default) and nSample mode (FIFO is in use). a) In 'FIFO bypass' mode the internal FIFO is not in use, the codec is working synchronously as a normal codec (it needs constant stream of data on the digital interface). b) The nSample mode implementation uses one interrupt line from DAC33 to the host: Alarm threshold is set to 10ms of audio data (limit by the driver implementation). DAC33 will signal an interrupt, when the FIFO level goes under the Alarm threshold. The host will write to nSample register a value (number of stereo samples), to tell DAC33 how many samples it should read in a burst from the host. When the DAC33 received the number of samples, it disables the clocks on the I2S bus. When the FIFO use again goes under the Alarm threshold, DAC33 signals the host with an interrupt, and the process is repeated. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@nokia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'sound/soc/codecs/Kconfig')
1 files changed, 4 insertions, 0 deletions
diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index fab01c99182..d30fce71cfe 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -30,6 +30,7 @@ config SND_SOC_ALL_CODECS
select SND_SOC_TLV320AIC3X if I2C
select SND_SOC_TPA6130A2 if I2C
+ select SND_SOC_TLV320DAC33 if I2C
select SND_SOC_TWL4030 if TWL4030_CORE
select SND_SOC_UDA134X
select SND_SOC_UDA1380 if I2C
@@ -142,6 +143,9 @@ config SND_SOC_TLV320AIC26
config SND_SOC_TLV320AIC3X
+config SND_SOC_TLV320DAC33
+ tristate
config SND_SOC_TWL4030