Paul Kavan wrote:
Frank:
Try adding the option "--with-versioned=no" to the alsa-libs configure.That did the trick in terms of the sw params problem. With the default alsa.conf file, I can now get the speaker to make some noise. However, doing:
speaker-test -r8000 -f1000 -FS8 -tsine -l5
gives me a slightly distorted sine wave that has a period of half of what I would expect.
Better than no sound :) At least something is getting through ALSA and ASoC to your codec.
You may need to adjust the RCMR, RFRM, TCMR, TFRM register settings in sound/soc/at91/at91-ssc.c to send the data in the mode that your codec expects. I have only tested I2S and DSP_A modes with S16_LE data. It's fairly easy to add new modes.
Frank, this is what I have for the small conf. I hope it is the right one:
pcm.!default { type hw card 0 } pcm.hw { type hw card 0 device 0 subdevice 0 } ctl.!default { type hw card 0 } ctl.hw { type hw card 0 }
ctl.w6811 { type hw card 0 } pcm.w6811 { type hw card 0 device 0 subdevice 0 }
ctl.!default = ctl.w6811 pcm.!default = pcm.w6811
ctl.hw { @args[ CARD ] @args.CARD { type string default "0" } type hw card $CARD }
pcm.hw { @args[ CARD DEV SUBDEV ] @args.CARD { type string default "0" } @args.DEV { type integer default 0 } @args.SUBDEV { type integer default 0 } type hw card $CARD device $DEV subdevice $SUBDEV }
However, when I use this as the conf, I get the following with aplay -l
/usr/share/alsa $ aplay -l **** List of PLAYBACK Hardware Devices **** ALSA lib conf.c:975:(parse_value) card is not a string ALSA lib conf.c:1588:(snd_config_load1) _toplevel_:45:1:Invalid argument ALSA lib conf.c:3066:(snd_config_update_r) /usr/share/alsa/alsa.conf may be old or corrupted: consit aplay: device_list:213: control open (0): Invalid argument
Not sure if I have the alsa.conf correct. So maybe it is a problem there. You mentioned a bare bones .conf, but I do not this is the only one I have in my email.
I don't see anything wrong with this alsa.conf, but I'm no expert. It is virtually the same as the one I am using, but I am using ALSA 1.0.13.
Here is the bare-bones config file that I was using before I added a second sound device:
pcm.!default { type hw card 0 } pcm.hw { type hw card 0 device 0 subdevice 0 } ctl.!default { type hw card 0 } ctl.hw { type hw card 0 }
../fam