Peter Ujfalusi wrote:
On Wednesday 10 June 2009 13:27:38 ext Janusz Krzysztofik wrote:
Not only this. AFAICS, there is no way of specifying single phase stereo
(with XPHASE/RPHASE unset), 2 words per frame (XFRLEN1/RFRLEN1(2 - 1)).
Isn't this required for correct DSP_A/DSP_B support?
Sure it is possible:
format = mcbsp_data->fmt & SND_SOC_DAIFMT_FORMAT_MASK;
wpf = channels = params_channels(params);
switch (channels) {
case 2:
if (format == SND_SOC_DAIFMT_I2S) {
/* Use dual-phase frames */
regs->rcr2 |= RPHASE;
regs->xcr2 |= XPHASE;
/* Set 1 word per (McBSP) frame for phase1 and phase2 */
wpf--;
regs->rcr2 |= RFRLEN2(wpf - 1);
regs->xcr2 |= XFRLEN2(wpf - 1);
}
case 1:
case 4:
/* Set word per (McBSP) frame for phase1 */
regs->rcr1 |= RFRLEN1(wpf - 1);
regs->xcr1 |= XFRLEN1(wpf - 1);
break;
default:
/* Unsupported number of channels */
return -EINVAL;
}
wpf = channels == 2, format is not I2S --> RFRLEN1(wpf - 1), XFRLEN1(wpf - 1),
RFRLEN1(2 - 1), XFRLEN1(2 - 1)
OK, I see I have to update my base before commenting the code ;).
Thanks,
Janusz
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