Mark Brown wrote: > On Thu, Jan 15, 2009 at 02:54:54PM -0500, Hugo Villeneuve wrote: >> Mark Brown <broonie@xxxxxxxxxxxxx> wrote: > >>>> The breakage I see when I run the aplay utility is this: > >>>> aplay: pcm_write:1394: write error: Input/output error > >>>> davinci-git version is the latest as of january 14 >>>> (2.6.28-davinci1-06546-gcfb152b) > >>> Hrm, OK. That's not terribly informative - does the error get >>> reported after about 10 seconds by any chance? I suspect that DMA >>> just isn't happening. > >> Sorry about the non-verbosity :) > > I actually meant the error message rather than your posting, sorry! > >> Yes it happens almost exactly after 10 seconds. I?m not an expert with >> audio nor DMA, but can you indicate me where I should be looking for >> signs of trouble (which source files for example)? > > sound/soc/davinci/davinci-pcm.c and the underlying DMA APIs it calls. I > wouldn't be surprised if either there had been some change in the DMA > APIs that required an update in the driver or the DMA APIs haven't been > fully merged. > > Hopefully a comparison of the mainline and DaVinci trees will show > something... > _______________________________________________ > Alsa-devel mailing list > Alsa-devel@xxxxxxxxxxxxxxxx > http://mailman.alsa-project.org/mailman/listinfo/alsa-devel > In davinci-sffsdr.c I see ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_RIGHT_J | SND_SOC_DAIFMT_CBM_CFS | SND_SOC_DAIFMT_IB_NF); When I changed the evm board flags passed, I didn't change this file. So, you'll need something like ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_CBM_CFS | SND_SOC_DAIFMT_NB_NF); But, you should be seeing error messages. Troy _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
