On Thursday 03 September 2009 21:10, Manuel Jander wrote: > does anybody still have a AU88x0 card ? I know they are quite ancient > now, but if anyone could give the attached patch a try ? Would be > nice. > I made the patch against linux-2.6.30.4 > http://micro.homelinux.net/~mjander/au88x0.diff.gz <http://micro.homelinux.net/%7Emjander/au88x0.diff.gz> > > Best Regards, > Manuel Which version of audaicous (1.5.x or 2.1) are you testing ? (alsa-gapless or alsa-ng plugin) au88x0 most likely cannot support 1 sample per period because of the FIFO as described in patent 6167465. if you look at the source code of alsa-ng and alsa-gapless plugin both of them use the own way to calculate the buffer size instead of using snd_pcm_hw_params_get_buffer_size() http://hg.atheme.org/audacious-plugins/file/2c0a9bba77d7/src/alsa-ng/alsa-core.c#l1 CHECK_FAIL (snd_pcm_hw_params_set_access (pcm_handle, hwparams, SND_PCM_ACCESS_RW_INTERLEAVED), "snd_pcm_hw_params_set_access"); CHECK_FAIL (snd_pcm_hw_params_set_format (pcm_handle, hwparams, afmt), "snd_pcm_hw_params_set_format"); CHECK_FAIL (snd_pcm_hw_params_set_channels (pcm_handle, hwparams, nch), "snd_pcm_hw_params_set_channels"); CHECK_FAIL (snd_pcm_hw_params_set_rate (pcm_handle, hwparams, rate, 0), "snd_pcm_hw_params_set_rate"); CHECK_FAIL (snd_pcm_hw_params (pcm_handle, hwparams), "snd_pcm_hw_params"); bitwidth = snd_pcm_format_physical_width(afmt); bps = (rate * bitwidth * nch) >> 3; buf_size = MAX(aud_cfg->output_buffer_size, 100); ringbuf_size = buf_size * bps / 1000; How do you get the "ADB Ctrl failure" error ? There are two main problem of the au88x0 driver 1) alsa is unable to calculate the correct value for the three functions snd_pcm_hw_params_set_buffer_time_near() , snd_pcm_hw_params_set_period_time_near() and snd_pcm_set_params() https://bugtrack.alsa-project.org/alsa-bug/view.php?id=1724 Test case : alsa-lib/test/pcm_min.c ( change default to hw:0,0 ) Real world case: gstreamer and winealsa.drv 2) unable to recover when the number of available src is not enough (FATAL: ResManager: resource type 1 exhaust) https://bugtrack.alsa-project.org/alsa-bug/view.php?id=2228 test case : running application to use 15 src ( 7 stereo and one mono stream ) and open another stereo stream _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
