[Arm-netbook] A10 i2s rx(capture) is not exist.

[김종원]

hi, everyone.

 

i'm compile linux kernel, check menuconfig below

Device Driver > Sound card support > Advanced Linux Sound Architecture >
ALSA for Soc Audio support > Soc i2s interface for the AllWinner SUN4I chips

 

 

[    3.450000] No device for DAI sun4i-i2s

[    3.450000] No device for DAI codecchip

[    3.460000] asoc: codecchip <-> sun4i-i2s mapping ok

[    3.460000] usbcore: registered new interface driver snd-usb-audio

[    3.470000] usbcore: registered new interface driver snd-ua101

[    3.480000] usbcore: registered new interface driver snd-usb-caiaq

[    3.480000] ALSA device list:

[    3.490000]   #0: sun4i-CODEC  Audio Codec

[    3.490000]   #1: SUN4I_SNDHDMI (SNDHDMI)

[    3.500000]   #2: SUN4I_codecchip (codecchip)

 

 

and check /proc/asound

 

# ls -l /proc/asound

 

lrwxrwxrwx root     root              2010-01-01 08:04 SUN4Icodecchip ->
card2

dr-xr-xr-x root     root              2010-01-01 08:04 card2

lrwxrwxrwx root     root              2010-01-01 08:04 SUN4ISNDHDMI -> card1

dr-xr-xr-x root     root              2010-01-01 08:04 card1

lrwxrwxrwx root     root              2010-01-01 08:04 sun4icodec -> card0

dr-xr-xr-x root     root              2010-01-01 08:04 card0

 

# ls -l /dev/snd

 

crw-rw---- system   audio    116,  64 2010-01-01 08:00 controlC2

crw-rw---- system   audio    116,  80 2010-01-01 08:00 pcmC2D0p

crw-rw---- system   audio    116,  32 2010-01-01 08:00 controlC1

crw-rw---- system   audio    116,  48 2010-01-01 08:00 pcmC1D0p

crw-rw---- system   audio    116,   0 2010-01-01 08:00 controlC0

crwxrwxrwx system   system   116,  24 2010-01-01 08:00 pcmC0D0c

crwxrwxrwx system   system   116,  16 2010-01-01 08:00 pcmC0D0p

 

 

but i can not found i2s rx(capture) device => pcmC2D0c is not exist!!!

 

 

i am check i2s device driver from linux kernel source.

 

sound/soc/sun5i/i2s/sndi2s.c

sound/soc/sun4i/i2s/sndi2s.c

 

struct snd_soc_dai_driver sndi2s_dai = {

           .name = "sndi2s",

           /* playback capabilities */

           .playback = {

                     .stream_name = "Playback",

                     .channels_min = 1,

                     .channels_max = 2,

                     .rates = sndi2s_RATES,

                     .formats = sndi2s_FORMATS,

           },

           /* pcm operations */

           .ops = &sndi2s_dai_ops,

           .symmetric_rates = 1,

};

EXPORT_SYMBOL(sndi2s_dai);

 

 

.capture is not exist.

 

 

HELP ME!!! PLEASE!!!

 

 

regards, 

jw-kim.

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