Hi All,
I am developing driver for daughter sound card on DM355 by modifying the
AIC33 driver.
I2C is working fine and the ioctl's are working fine but recording is not
working.
There are 2 McBSP bus (McBSP1 and McBSP2) used for DMA transfer out of which
McBSP1 is used for the sound daughter card.
Audio format is I2S.
Following is the configuration that I tried:
#define DEFAULT_BITPERSAMPLE 256
#define AUDIO_RATE_DEFAULT 8000
#define AUDIO_MCBSP DAVINCI_MCBSP1
McBSP1 is configured as slave for recording.
Below is configuration for McBSP1:
.spcr2 = FREE | XINTM(3),
.spcr1 = RINTM(3),
.rcr2 = RWDLEN2(DAVINCI_MCBSP_WORD_16) | RDATDLY(1),
.rcr1 = RFRLEN1(1) | RWDLEN1(DAVINCI_MCBSP_WORD_16),
.xcr2 = XWDLEN2(DAVINCI_MCBSP_WORD_16) | XDATDLY(1) | XFIG,
.xcr1 = XFRLEN1(1) | XWDLEN1(DAVINCI_MCBSP_WORD_16),
.srgr1 = FWID(DEFAULT_BITPERSAMPLE - 1),
.srgr2 = FSGM | FPER(DEFAULT_BITPERSAMPLE * 2 - 1),
/* configure McBSP to be the I2S master */
.pcr0 = FSXM | FSRM | CLKXM | CLKRM | CLKXP | CLKRP,
Daughter card is configured for 16bit word, 8000KHz and 256bits per sample.
AIC33 uses McBSP2 while my audio daughter card uses McBSP1. Also, the
default bits per sample for AIC33 is 16, I've changed it to 256.
But I don't get any interrupt for recording.
Please can anyone help to sort out the problem.
Thanks,
Azam.
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