Em Qui, 2008-10-30 às 12:06 +0000, Mark Brown escreveu:> On Thu, Oct 30, 2008 at 09:40:17AM -0200, Daniel Ribeiro wrote:> > > Here are my test results for stereo S16_LE audio:> > > set_tdm_slot(cpu_dai, 1, 2), SSCR0_Datasize(16):> > Only left channel works. + Silent output on right channel. > > > set_tdm_slot(cpu_dai, 2, 2), SSCR0_Datasize(16):> > No I/O.> > Could you expand on what you mean by "No I/O" here - do you get silent> output or does DMA not work either? DMA dont work. > > > set_tdm_slot(cpu_dai, 3, 2), SSCR0_Datasize(16):> > Only left channel works. + Silent output on right channel. > > > set_tdm_slot(cpu_dai, 1, 1), SSCR0_Datasize(16) | SSCR0_EDSS:> > Both channels work.> > Just a thought, but you should also be able to get things working by> adding a constraint on the format in your machine driver to force use of> 32 bit - see things like the WM8903 driver for examples of how to this.> Ideally that shouldn't be required, though. I havent tried this yet, but if I set the codec driver to S32_LEshouldnt it change the audio data format? According to the information Ihave on this codec it only works with 16 bits audio format. > > > On my board CLK and FRM are driven by the codec, pxa is slave. I have> > no specs for the codec, only a 2.4 kernel driver that works with> > (SSCR0_Datasize(16) | SSCR0_EDSS | SSCR0_SlotsPerFrm(1)).> > Which codec is this? Could you post the driver? Its a motorola ASIC called PCAP2, it does a lot more than sound, and isused on almost all Motorola phones (including WinCE and P2K phones) from2004~2007. http://git.openezx.org/?p=openezx.git;a=blob;f=sound/soc/codecs/pcap2.c;h=d5cf7d2e34a8565ed0e91094ee63f40236bb0b75;hb=18aeb9d03c0969b68fada1913b4d72ca8f47a912 > > BTW, your mail client is doing some really strange indentation here> and indenting the first line of each paragraph by a tab which looks like> how some other clients do quotation. Sorry, im used to indent each paragraph with a tab, its not my mailclient, its me. :) -- Daniel Ribeiro _______________________________________________Alsa-devel mailing listAlsa-devel@xxxxxxxxxxxxxxxxxxxx://mailman.alsa-project.org/mailman/listinfo/alsa-devel
