|
|
@@ -533,6 +533,49 @@ static int atmel_ssc_hw_params(struct snd_pcm_substream *substream,
|
|
|
break;
|
|
|
|
|
|
case SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_CBM_CFM:
|
|
|
+ /*
|
|
|
+ * DSP/PCM Mode A format, CODEC supplies BCLK and LRC clocks.
|
|
|
+ *
|
|
|
+ * The SSC transmit clock is obtained from the BCLK signal on
|
|
|
+ * on the TK line, and the SSC receive clock is
|
|
|
+ * generated from the transmit clock.
|
|
|
+ *
|
|
|
+ * Data is transferred on first BCLK after LRC pulse rising
|
|
|
+ * edge.If stereo, the right channel data is contiguous with
|
|
|
+ * the left channel data.
|
|
|
+ */
|
|
|
+ rcmr = SSC_BF(RCMR_PERIOD, 0)
|
|
|
+ | SSC_BF(RCMR_STTDLY, START_DELAY)
|
|
|
+ | SSC_BF(RCMR_START, SSC_START_RISING_RF)
|
|
|
+ | SSC_BF(RCMR_CKI, SSC_CKI_RISING)
|
|
|
+ | SSC_BF(RCMR_CKO, SSC_CKO_NONE)
|
|
|
+ | SSC_BF(RCMR_CKS, SSC_CKS_PIN);
|
|
|
+
|
|
|
+ rfmr = SSC_BF(RFMR_FSEDGE, SSC_FSEDGE_POSITIVE)
|
|
|
+ | SSC_BF(RFMR_FSOS, SSC_FSOS_NONE)
|
|
|
+ | SSC_BF(RFMR_FSLEN, 0)
|
|
|
+ | SSC_BF(RFMR_DATNB, (channels - 1))
|
|
|
+ | SSC_BIT(RFMR_MSBF)
|
|
|
+ | SSC_BF(RFMR_LOOP, 0)
|
|
|
+ | SSC_BF(RFMR_DATLEN, (bits - 1));
|
|
|
+
|
|
|
+ tcmr = SSC_BF(TCMR_PERIOD, 0)
|
|
|
+ | SSC_BF(TCMR_STTDLY, START_DELAY)
|
|
|
+ | SSC_BF(TCMR_START, SSC_START_RISING_RF)
|
|
|
+ | SSC_BF(TCMR_CKI, SSC_CKI_FALLING)
|
|
|
+ | SSC_BF(TCMR_CKO, SSC_CKO_NONE)
|
|
|
+ | SSC_BF(TCMR_CKS, SSC_CKS_PIN);
|
|
|
+
|
|
|
+ tfmr = SSC_BF(TFMR_FSEDGE, SSC_FSEDGE_POSITIVE)
|
|
|
+ | SSC_BF(TFMR_FSDEN, 0)
|
|
|
+ | SSC_BF(TFMR_FSOS, SSC_FSOS_NONE)
|
|
|
+ | SSC_BF(TFMR_FSLEN, 0)
|
|
|
+ | SSC_BF(TFMR_DATNB, (channels - 1))
|
|
|
+ | SSC_BIT(TFMR_MSBF)
|
|
|
+ | SSC_BF(TFMR_DATDEF, 0)
|
|
|
+ | SSC_BF(TFMR_DATLEN, (bits - 1));
|
|
|
+ break;
|
|
|
+
|
|
|
default:
|
|
|
printk(KERN_WARNING "atmel_ssc_dai: unsupported DAI format 0x%x\n",
|
|
|
ssc_p->daifmt);
|
Mark Brown