Hi Mark,

I found the problem, I was not aware about the patch "ASoC: DaVinci: remove requirement that dma_params is 1st in structure", that's why the davinci pcm open function was failing because the dma_params was not assigned properly.

This is current output after that change:

root@dm365-evm:~# arecord -D plughw:0,0 | aplay -D plughw:0,0 Recording WAVE 'stdin' : Unsigned 8 bit, Rate 8000 Hz, Mono Playing WAVE 'stdin' : Unsigned 8 bit, Rate 8000 Hz, Mono

root@dm365-evm:~# arecord -D plughw:0,1 | aplay -D plughw:0,1 Recording WAVE 'stdin' : Unsigned 8 bit, Rate 8000 Hz, Mono Playing WAVE 'stdin' : Unsigned 8 bit, Rate 8000 Hz, Mono

I need to verify further more.

Thanks, Miguel Aguilar

Miguel Aguilar wrote:

Hi Mark,

I have been trying to test the AIC3x and the Voice Codec in the same kernel, however only the AIC3x is working, I'm having problem when I try to use the Voice Codec, I already have verified that the Voice Codec works since I tested alone.

Please check the following output:

root@dm365-evm:~# aplay -l **** List of PLAYBACK Hardware Devices **** card 0: EVM [DaVinci DM365 EVM], device 0: AIC3X tlv320aic3x-0 [] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: EVM [DaVinci DM365 EVM], device 1: CQ93 CQ93VC-1 [] Subdevices: 1/1 Subdevice #0: subdevice #0

root@dm365-evm:~# aplay -L default:CARD=EVM DaVinci DM365 EVM, Default Audio Device null Discard all samples (playback) or generate zero samples (capture)

root@dm365-evm:~# cat /proc/asound/pcm 00-00: AIC3X tlv320aic3x-0 : : playback 1 : capture 1 00-01: CQ93 CQ93VC-1 : : playback 1 : capture 1

root@dm365-evm:~# cat /proc/asound/devices 0: [ 0] : control 16: [ 0- 0]: digital audio playback 17: [ 0- 1]: digital audio playback 24: [ 0- 0]: digital audio capture 25: [ 0- 1]: digital audio capture 33: : timer

root@dm365-evm:~# cat /proc/asound/cards 0 [EVM ]: tlv320aic3x - DaVinci DM365 EVM DaVinci DM365 EVM (tlv320aic3x)

root@dm365-evm:~# cat /proc/asound/timers G0: system timer : 10000.000us (10000000 ticks) P0-0-0: PCM playback 0-0-0 : SLAVE P0-0-1: PCM capture 0-0-1 : SLAVE P0-1-0: PCM playback 0-1-0 : SLAVE P0-1-1: PCM capture 0-1-1 : SLAVE

root@dm365-evm:~# arecord -D plughw:0,0 test.wav Recording WAVE 'test.wav' : Unsigned 8 bit, Rate 8000 Hz, Mono

*** This is the error that I have. I not sure if it has to do with the root@dm365-evm:~# arecord -D plughw:0,1 test.wav asoc: can't open platform davinci-audio arecord: main:608: audio open error: No such device

The following is the patch to the davinci-evm.c please check it if you see something wrong there:

diff --git a/sound/soc/davinci/davinci-evm.c b/sound/soc/davinci/davinci-evm.c index 7ccbe66..951d730 100644 --- a/sound/soc/davinci/davinci-evm.c +++ b/sound/soc/davinci/davinci-evm.c @@ -29,8 +29,10 @@

#include "../codecs/tlv320aic3x.h" #include "../codecs/spdif_transciever.h" +#include "../codecs/cq93vc.h" #include "davinci-pcm.h" #include "davinci-i2s.h" +#include "davinci-vcif.h" #include "davinci-mcasp.h"

#define AUDIO_FORMAT (SND_SOC_DAIFMT_DSP_B | \ @@ -151,6 +153,23 @@ static struct snd_soc_dai_link evm_dai = { .ops = &evm_ops, };

+static struct snd_soc_dai_link dm365_evm_dai[] = {

•   {
  

•           .name = "TLV320AIC3X",
  

•           .stream_name = "AIC3X",
  

•           .cpu_dai = &davinci_i2s_dai,
  

•           .codec_dai = &aic3x_dai,
  

•           .init = evm_aic3x_init,
  

•           .ops = &evm_ops,
  

•   },
  

•   {
  

•           .name = "Voice Codec - CQ93VC",
  

•           .stream_name = "CQ93",
  

•   .cpu_dai = &davinci_vcif_dai,
  

•           .codec_dai = &cq93vc_dai,
  

•   },
  

+};

static struct snd_soc_dai_link dm6467_evm_dai[] = { { .name = "TLV320AIC3X", @@ -177,7 +196,7 @@ static struct snd_soc_dai_link da8xx_evm_dai = { .ops = &evm_ops, };

-/* davinci dm6446, dm355 or dm365 evm audio machine driver */ +/* davinci dm6446, dm355 evm audio machine driver */ static struct snd_soc_card snd_soc_card_evm = { .name = "DaVinci EVM", .platform = &davinci_soc_platform, @@ -185,6 +204,14 @@ static struct snd_soc_card snd_soc_card_evm = { .num_links = 1, };

+/* davinci dm365 evm audio machine driver */ +static struct snd_soc_card dm365_snd_soc_card_evm = {

•   .name = "DaVinci DM365 EVM",
  

•   .platform = &davinci_soc_platform,
  

•   .dai_link = &dm365_evm_dai,
  

•   .num_links = ARRAY_SIZE(dm365_evm_dai),
  

+};

/* davinci dm6467 evm audio machine driver */ static struct snd_soc_card dm6467_snd_soc_card_evm = { .name = "DaVinci DM6467 EVM", @@ -217,6 +244,13 @@ static struct snd_soc_device evm_snd_devdata = { };

/* evm audio subsystem */ +static struct snd_soc_device dm365_evm_snd_devdata = {

•   .card = &dm365_snd_soc_card_evm,
  

•   .codec_dev = &soc_codec_dev_aic3x,
  

•   .codec_data = &aic3x_setup,
  

+};

+/* evm audio subsystem */ static struct snd_soc_device dm6467_evm_snd_devdata = { .card = &dm6467_snd_soc_card_evm, .codec_dev = &soc_codec_dev_aic3x, @@ -244,12 +278,15 @@ static int __init evm_init(void) int index; int ret;

•   if (machine_is_davinci_evm() || machine_is_davinci_dm365_evm()) {
  

•   if (machine_is_davinci_evm()) {
            evm_snd_dev_data = &evm_snd_devdata;
            index = 0;
    } else if (machine_is_davinci_dm355_evm()) {
            evm_snd_dev_data = &evm_snd_devdata;
            index = 1;
  

•   } else if (machine_is_davinci_dm365_evm()) {
  

•           evm_snd_dev_data = &dm365_evm_snd_devdata;
  

•           index = 0;
    } else if (machine_is_davinci_dm6467_evm()) {
            evm_snd_dev_data = &dm6467_evm_snd_devdata;
            index = 0;
  
  
  

Thanks,

Miguel Aguilar