Hi, we use DM8168 Evm, RDK4.0, AIC3101.
The audio is DSP Mode now, how can I set to I2S mode?
where I can change?
I change ti81xx_evm_hw_params() fmt to SND_SOC_DAIFMT_I2S_WORD16.
And add
static int davinci_mcasp_set_dai_fmt(struct snd_soc_dai *cpu_dai,
unsigned int fmt)
{
struct davinci_audio_dev *dev = snd_soc_dai_get_drvdata(cpu_dai);
void __iomem *base = dev->base;
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_I2S:
/* codec is using i2s data format 32bits */
mcasp_set_bits(base + DAVINCI_MCASP_RXFMCTL_REG, 0x00000111);
mcasp_set_bits(base + DAVINCI_MCASP_RXTDM_REG, 0x00000003);
mcasp_set_bits(base + DAVINCI_MCASP_RXFMT_REG, 0x000180F4);
mcasp_set_bits(base + DAVINCI_MCASP_ACLKXCTL_REG, ACLKXPOL);
break;
case SND_SOC_DAIFMT_I2S_WORD16:
//codec is using i2s data format 16 bits
mcasp_set_bits(base + DAVINCI_MCASP_RXFMCTL_REG, 0x00000111);
mcasp_set_bits(base + DAVINCI_MCASP_RXTDM_REG, 0x00000003);
mcasp_set_bits(base + DAVINCI_MCASP_RXFMT_REG, 0x00018074);
mcasp_set_bits(base + DAVINCI_MCASP_ACLKXCTL_REG, ACLKXPOL);
default:
//we don't use i2c - so we need to take care about the frame/bitclk behaviour
switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
case SND_SOC_DAIFMT_IB_NF:
mcasp_clr_bits(base + DAVINCI_MCASP_ACLKXCTL_REG, ACLKXPOL);
mcasp_clr_bits(base + DAVINCI_MCASP_TXFMCTL_REG, FSXPOL);
mcasp_set_bits(base + DAVINCI_MCASP_ACLKRCTL_REG, ACLKRPOL);
mcasp_clr_bits(base + DAVINCI_MCASP_RXFMCTL_REG, FSRPOL);
break;
case SND_SOC_DAIFMT_NB_IF:
mcasp_set_bits(base + DAVINCI_MCASP_ACLKXCTL_REG, ACLKXPOL);
mcasp_set_bits(base + DAVINCI_MCASP_TXFMCTL_REG, FSXPOL);
mcasp_clr_bits(base + DAVINCI_MCASP_ACLKRCTL_REG, ACLKRPOL);
mcasp_set_bits(base + DAVINCI_MCASP_RXFMCTL_REG, FSRPOL);
break;
case SND_SOC_DAIFMT_IB_IF:
mcasp_clr_bits(base + DAVINCI_MCASP_ACLKXCTL_REG, ACLKXPOL);
mcasp_set_bits(base + DAVINCI_MCASP_TXFMCTL_REG, FSXPOL);
mcasp_set_bits(base + DAVINCI_MCASP_ACLKRCTL_REG, ACLKRPOL);
mcasp_set_bits(base + DAVINCI_MCASP_RXFMCTL_REG, FSRPOL);
break;
case SND_SOC_DAIFMT_NB_NF:
mcasp_set_bits(base + DAVINCI_MCASP_ACLKXCTL_REG, ACLKXPOL);
mcasp_clr_bits(base + DAVINCI_MCASP_TXFMCTL_REG, FSXPOL);
mcasp_clr_bits(base + DAVINCI_MCASP_ACLKRCTL_REG, ACLKRPOL);
mcasp_clr_bits(base + DAVINCI_MCASP_RXFMCTL_REG, FSRPOL);
break;
default:
return -EINVAL;
}
}
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
case SND_SOC_DAIFMT_CBS_CFS:
/* codec is clock and frame slave */
mcasp_set_bits(base + DAVINCI_MCASP_ACLKXCTL_REG, ACLKXE);
mcasp_set_bits(base + DAVINCI_MCASP_TXFMCTL_REG, AFSXE);
mcasp_set_bits(base + DAVINCI_MCASP_ACLKRCTL_REG, ACLKRE);
mcasp_set_bits(base + DAVINCI_MCASP_RXFMCTL_REG, AFSRE);
mcasp_set_bits(base + DAVINCI_MCASP_PDIR_REG, (0x7 << 26));
break;
case SND_SOC_DAIFMT_CBM_CFS:
/* codec is clock master and frame slave */
mcasp_set_bits(base + DAVINCI_MCASP_ACLKXCTL_REG, ACLKXE);
mcasp_set_bits(base + DAVINCI_MCASP_TXFMCTL_REG, AFSXE);
mcasp_set_bits(base + DAVINCI_MCASP_ACLKRCTL_REG, ACLKRE);
mcasp_set_bits(base + DAVINCI_MCASP_RXFMCTL_REG, AFSRE);
mcasp_set_bits(base + DAVINCI_MCASP_PDIR_REG, (0x2d << 26));
break;
case SND_SOC_DAIFMT_CBM_CFM:
/* codec is clock and frame master */
mcasp_clr_bits(base + DAVINCI_MCASP_ACLKXCTL_REG, ACLKXE);
mcasp_clr_bits(base + DAVINCI_MCASP_TXFMCTL_REG, AFSXE);
mcasp_clr_bits(base + DAVINCI_MCASP_ACLKRCTL_REG, ACLKRE);
mcasp_clr_bits(base + DAVINCI_MCASP_RXFMCTL_REG, AFSRE);
mcasp_clr_bits(base + DAVINCI_MCASP_PDIR_REG, (0x3f << 26));
/* TI811x AIC_MCLK <-- McASP2_AHCLKX(Pin out) */
switch (dev->clk_input_pin) {
case MCASP_AHCLKX_IN:
mcasp_clr_bits(base + DAVINCI_MCASP_PDIR_REG, AHCLKX);
break;
case MCASP_AHCLKX_OUT:
mcasp_set_bits(base + DAVINCI_MCASP_PDIR_REG, AHCLKX);
break;
default:
return -EINVAL;
}
break;
default:
return -EINVAL;
}
But if I use arecord, there print arecord: pcm_read:1801: read error: Input/output error.
