[alsa-devel] Cirrus Logic CS4207

Tue Apr 21 14:00:17 CEST 2009

At Tue, 21 Apr 2009 13:49:17 +0200,
Peter-Jan Deweirdt wrote:
> 
> 
> On 21 Apr 2009, at 13:41, Takashi Iwai wrote:
> 
> > At Tue, 21 Apr 2009 09:24:31 +0200,
> > Peter-Jan Deweirdt wrote:
> >>
> >> Hi,
> >>
> >> This is the patch that I've changed to the 2.6.29 kernel. However I
> >> need some more help for playing the audio. Since I don't really know
> >> what is happening.
> >>
> >> It's detecting my audio chip. (a part of dmesg)
> >> [    5.171478] Advanced Linux Sound Architecture Driver Version  
> >> 1.0.18a.
> >> [    5.176635] HDA Intel 0000:00:1b.0: setting latency timer to 64
> >> [    5.220417] ALSA device list:
> >> [    5.220434]   #0: HDA Intel MID at 0xd0010000 irq 22
> >>
> >> So it looks like my audio card is found. Some more outputs
> >>
> >> lspci -v
> >> 00:1b.0 Audio device: Intel Corporation System Controller Hub (SCH
> >> Poulsbo) HD Audio Controller (rev 06)
> >> 	Subsystem: Intel Corporation Unknown device 8119
> >> 	Flags: bus master, fast devsel, latency 0, IRQ 22
> >> 	Memory at d0010000 (64-bit, non-prefetchable) [size=16K]
> >> 	Capabilities: [50] Power Management version 2
> >> 	Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00
> >> 	Kernel driver in use: HDA Intel
> >>
> >>
> >> [root at localhost ~]# cat /proc/asound/cards
> >>  0 [MID            ]: HDA-Intel - HDA Intel MID
> >>                       HDA Intel MID at 0xd0010000 irq 22
> >> [root at localhost ~]#
> >>
> >> [root at localhost ~]# aplay -l
> >> **** List of PLAYBACK Hardware Devices ****
> >> card 0: MID [HDA Intel MID], device 0: CS4207 Analog [CS4207 Analog]
> >>   Subdevices: 1/1
> >>   Subdevice #0: subdevice #0
> >> card 0: MID [HDA Intel MID], device 1: CS4207 Digital [CS4207  
> >> Digital]
> >>   Subdevices: 1/1
> >>   Subdevice #0: subdevice #0
> >> [root at localhost ~]#
> >>
> >>
> >> [root at localhost ~]# aplay -L
> >> front:CARD=MID,DEV=0
> >>     HDA Intel MID, CS4207 Analog
> >>     Front speakers
> >> surround40:CARD=MID,DEV=0
> >>     HDA Intel MID, CS4207 Analog
> >>     4.0 Surround output to Front and Rear speakers
> >> surround41:CARD=MID,DEV=0
> >>     HDA Intel MID, CS4207 Analog
> >>     4.1 Surround output to Front, Rear and Subwoofer speakers
> >> surround50:CARD=MID,DEV=0
> >>     HDA Intel MID, CS4207 Analog
> >>     5.0 Surround output to Front, Center and Rear speakers
> >> surround51:CARD=MID,DEV=0
> >>     HDA Intel MID, CS4207 Analog
> >>     5.1 Surround output to Front, Center, Rear and Subwoofer speakers
> >> surround71:CARD=MID,DEV=0
> >>     HDA Intel MID, CS4207 Analog
> >>     7.1 Surround output to Front, Center, Side, Rear and Woofer
> >> speakers
> >> iec958:CARD=MID,DEV=0
> >>     HDA Intel MID, CS4207 Digital
> >>     IEC958 (S/PDIF) Digital Audio Output
> >> null
> >>     Discard all samples (playback) or generate zero samples (capture)
> >> pulse
> >>     PulseAudio Sound Server
> >> default
> >>     Default
> >> [root at localhost ~]#
> >>
> >> [root at localhost ~]# ls -al /dev/snd/
> >> total 0
> >> drwxr-xr-x  2 root root     200 Mar 24 20:00 .
> >> drwxr-xr-x 15 root root    3360 Mar 24 20:00 ..
> >> crw-rw----  1 root audio 116, 9 Mar 24 20:00 controlC0
> >> crw-rw----  1 root audio 116, 8 Mar 24 20:00 hwC0D0
> >> crw-rw----  1 root audio 116, 7 Mar 24 20:00 pcmC0D0c
> >> crw-rw----  1 root audio 116, 6 Mar 24 20:58 pcmC0D0p
> >> crw-rw----  1 root audio 116, 5 Mar 24 20:00 pcmC0D1c
> >> crw-rw----  1 root audio 116, 4 Mar 24 20:30 pcmC0D1p
> >> crw-rw----  1 root audio 116, 3 Mar 24 20:00 seq
> >> crw-rw----  1 root audio 116, 2 Mar 24 20:00 timer
> >> [root at localhost ~]#
> >
> > All look good, so far.
> 
> Why am I missing /dev/dsp, /dev/audio, ...

You didn't load OSS emulation modules, such as snd-pcm-oss.

> 
> 
> >
> >
> >
> >> The problems that I'm having is:
> >> - How to play audio?
> >
> > 	% aplay foo.wav
> 
> [root at localhost ~]# aplay tara.wav
> ALSA lib pulse.c:272:(pulse_connect) PulseAudio: Unable to connect:  
> Connection refused
> 
> aplay: main:590: audio open error: Connection refused

It's a problem of pulseaudio, for example, PA isn't started
automatically by some reason.

> [root at localhost ~]#
> 
> Looks like PulseAudio is not running. When I try to start it I get this:
> [root at localhost ~]# pulseaudio
> W: ltdl-bind-now.c: Failed to find original dlopen loader.
> W: main.c: This program is not intended to be run as root (unless -- 
> system is specified).
> W: pid.c: Stale PID file, overwriting.
> N: module-alsa-sink.c: Disabling timer-based scheduling because high- 
> resolution timers are not available from the kernel.
> Soft CPU time limit exhausted, terminating.
> Hard CPU time limit exhausted, terminating forcibly.
> Aborted (core dumped)
> [root at localhost ~]#
> 
> dump from dmesg
> [  610.355008] ALSA sound/pci/hda/hda_intel.c:648: hda_intel:  
> azx_get_response timeout, switching to single_cmd mode: last  
> cmd=0x009f000c

Looks like an invalid verb.  Maybe an error in the cirrus patch.
This is the likely reason why PA got screwed, too.
But, you should try really later version of the kernel if you use PA.

Or, avoid PA for the primary testing unless all things are sorted
out.

> >> - I am seeing 2 playback devices (what is correct) but no headphones
> >
> > The streams are just for analog and digital outputs.
> > The analog outputs are switched either by the automatic HP jack
> > detection or manual switch (if any).
> 
> So this means that I'm nog going to be able to play audio on the  
> LineOut1, LineOut2 and HP at the same time?

Depending on the implementation, but usually yes.

> >> - How can I see the difference between the MIC in and LINE IN?
> >
> > Via mixer controls.
> 
> How can I use the mixer controls? Do I need some specific devices?

Via a mixer app.  And, no, no special device is needed.  The mixer
is controlled over the control device, /dev/snd/control*.

Takashi