o Fix some bugs of fsl_sai_set_dai_fmt_tr().
o Add SND_SOC_DAIFMT_LEFT_J support.
o Add SND_SOC_DAIFMT_CBS_CFM support.
o Add SND_SOC_DAIFMT_CBM_CFS support.
o And SND_SOC_DAIFMT_RIGHT_J need to be done in the future.
Signed-off-by: Xiubo Li <li.xi...@freescale.com>
---
sound/soc/fsl/fsl_sai.c | 38 +++++++++++++++++++++++++++++---------
1 file changed, 29 insertions(+), 9 deletions(-)
diff --git a/sound/soc/fsl/fsl_sai.c b/sound/soc/fsl/fsl_sai.c
index faa65af..26d9f5e 100644
--- a/sound/soc/fsl/fsl_sai.c
+++ b/sound/soc/fsl/fsl_sai.c
@@ -105,35 +105,47 @@ static int fsl_sai_set_dai_fmt_tr(struct snd_soc_dai
*cpu_dai,
else
val_cr4 |= FSL_SAI_CR4_MF;
+ /* DAI mode */
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_I2S:
- val_cr4 |= FSL_SAI_CR4_FSE;
+ /* Data on rising edge of bclk, frame low, 1clk before data */
+ val_cr2 &= ~FSL_SAI_CR2_BCP;
+ val_cr4 |= FSL_SAI_CR4_FSE | FSL_SAI_CR4_FSP;
+ break;
+ case SND_SOC_DAIFMT_LEFT_J:
+ /* Data on rising edge of bclk, frame high, 0clk before data */
+ val_cr2 &= ~FSL_SAI_CR2_BCP;
+ val_cr4 &= ~(FSL_SAI_CR4_FSE | FSL_SAI_CR4_FSP);
break;
+ case SND_SOC_DAIFMT_RIGHT_J:
+ /* To be done */
default:
return -EINVAL;
}
+ /* DAI clock inversion */
switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
case SND_SOC_DAIFMT_IB_IF:
- val_cr4 |= FSL_SAI_CR4_FSP;
- val_cr2 &= ~FSL_SAI_CR2_BCP;
+ /* Invert both clocks */
+ val_cr2 ^= FSL_SAI_CR2_BCP;
+ val_cr4 ^= FSL_SAI_CR4_FSP;
break;
case SND_SOC_DAIFMT_IB_NF:
- val_cr4 &= ~FSL_SAI_CR4_FSP;
- val_cr2 &= ~FSL_SAI_CR2_BCP;
+ /* Invert bit clock */
+ val_cr2 ^= FSL_SAI_CR2_BCP;
break;
case SND_SOC_DAIFMT_NB_IF:
- val_cr4 |= FSL_SAI_CR4_FSP;
- val_cr2 |= FSL_SAI_CR2_BCP;
+ /* Invert frame clock */
+ val_cr4 ^= FSL_SAI_CR4_FSP;
break;
case SND_SOC_DAIFMT_NB_NF:
- val_cr4 &= ~FSL_SAI_CR4_FSP;
- val_cr2 |= FSL_SAI_CR2_BCP;
+ /* Nothing to do for both normal cases */
break;
default:
return -EINVAL;
}
+ /* DAI clock master masks */
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
case SND_SOC_DAIFMT_CBS_CFS:
val_cr2 |= FSL_SAI_CR2_BCD_MSTR;
@@ -143,6 +155,14 @@ static int fsl_sai_set_dai_fmt_tr(struct snd_soc_dai
*cpu_dai,
val_cr2 &= ~FSL_SAI_CR2_BCD_MSTR;
val_cr4 &= ~FSL_SAI_CR4_FSD_MSTR;
break;
+ case SND_SOC_DAIFMT_CBS_CFM:
+ val_cr2 |= FSL_SAI_CR2_BCD_MSTR;
+ val_cr4 &= ~FSL_SAI_CR4_FSD_MSTR;
+ break;
+ case SND_SOC_DAIFMT_CBM_CFS:
+ val_cr2 &= ~FSL_SAI_CR2_BCD_MSTR;
+ val_cr4 |= FSL_SAI_CR4_FSD_MSTR;
+ break;
default:
return -EINVAL;
}
--
1.8.4
--
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