Re: Crystal CS4235 with 2.2.0-pre7

Re: Crystal CS4235 with 2.2.0-pre7

[moc liamtoh]

i have the same chip (aopen MB) and i had problems too, (i use the 
2.0.36) but i got it to werk by swapping the dma's so that i had 534, 
irq 5, dma=1 and dma2=0 and that, oddly enough, seemed to work...and not 
that bad either...altough i have on board video also and when i was 
trying to use that it would get very bad sound....

regards,

Josh


<SNIP>
>Hi,
>
>Alan Cox stated a few weeks ago that there is support for the Crystal
>soundchip CS4235 in kernel 2.1.132ac1. I have an Acer motherboard with 
>this chip and so decided to make the latest available kernel
>linux-2.2.0-pre7.
>
>I found no references to CS4235 and so took the closest config option
>CS4232. 
>
>Unfortunately 
>
>cat /usr/lib/xemacs-20.4/etc/sounds/im_so_happy.au > /dev/audio
>
>simply gave silence.
>
>I would be very glad if someone out there could give me advice.
>
>Kind regards
>
>Gerd
>
>Here are the details:
>
>To avoid module trouble I made a kernel with builtin support for
>CS4232. These are my defines:
>
>CONFIG_SOUND_CS4232=y
>CONFIG_CS4232_BASES4
>CONFIG_CS4232_IRQ=5
>CONFIG_CS4232_DMA=0
>CONFIG_CS4232_DMA2=1
>CONFIG_CS4232_MPU_BASE:8
>CONFIG_CS4232_MPU_IRQ=9
>
<SNIP>

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Crystal CS4235 with 2.2.0-pre7

[Gerd Bavendiek]

Hi,

Alan Cox stated a few weeks ago that there is support for the Crystal
soundchip CS4235 in kernel 2.1.132ac1. I have an Acer motherboard with 
this chip and so decided to make the latest available kernel
linux-2.2.0-pre7.

I found no references to CS4235 and so took the closest config option
CS4232. 

Unfortunately 

cat /usr/lib/xemacs-20.4/etc/sounds/im_so_happy.au > /dev/audio

simply gave silence.

I would be very glad if someone out there could give me advice.

Kind regards

Gerd

Here are the details:

To avoid module trouble I made a kernel with builtin support for
CS4232. These are my defines:

CONFIG_SOUND_CS4232=y
CONFIG_CS4232_BASES4
CONFIG_CS4232_IRQ=5
CONFIG_CS4232_DMA=0
CONFIG_CS4232_DMA2=1
CONFIG_CS4232_MPU_BASE:8
CONFIG_CS4232_MPU_IRQ=9

I took the values from Windows98 which is alternatively running on the
same box and working fine with the CS4235.

dmesg says the following:

Sound initialization started
<Crystal audio controller (CS4235)> at 0x534 irq 5 dma 0,1
ad1848: Interrupt test failed (IRQ5)
Sound initialization complete

cat /dev/sndstat gives me:

Linux kiki 2.2.0-pre7 #4 Sun Jan 17 06:21:47 CET 1999 i686 unknown
OSS/Free:3.8s2++-971130
Load type: Driver compiled into kernel
Kernel: Linux kiki 2.2.0-pre7 #4 Sun Jan 17 06:21:47 CET 1999 i686
Config options: 0

Installed drivers: 
Type 21: CS4232
Type 22: CS4232 MIDI
Type 26: MPU-401 (UART)

Card config: 
CS4232 MIDI at 0x3a8 irq 9 drq 0
CS4232 at 0x534 irq 5 drq 0,1

Audio devices:
0: Crystal audio controller (CS4235) (DUPLEX)

Synth devices:

Midi devices:

Timers:
0: System clock

Mixers:
0: Crystal audio controller (CS4235)

According /proc/interupts IRQ 5 is taken by

  5:          0          XT-PIC  Crystal audio controller

/proc/ioports tells me:

0534-0537 : Crystal audio controller

Re: Crystal CS4235 with 2.2.0-pre7

[Tony Nugent]

On Mon Jan 18 1999 at 19:54, Gerd Bavendiek wrote:

> Alan Cox stated a few weeks ago that there is support for the Crystal
> soundchip CS4235 in kernel 2.1.132ac1. I have an Acer motherboard with
> this chip and so decided to make the latest available kernel
> linux-2.2.0-pre7.
> 
> I found no references to CS4235 and so took the closest config option
> CS4232.

I think you need to enable "config experimental drivers" to enable it.

> Unfortunately
> 
> cat /usr/lib/xemacs-20.4/etc/sounds/im_so_happy.au > /dev/audio
> 
> simply gave silence.

What does "cat /dev/sndstat" say?

Cheers
Tony

Re: Crystal CS4235 with 2.2.0-pre7

[Gerd Bavendiek]

moc liamtoh writes:
 > i have the same chip (aopen MB) and i had problems too, (i use the 
 > 2.0.36) but i got it to werk by swapping the dma's so that i had 534, 
 > irq 5, dma=1 and dma2=0 and that, oddly enough, seemed to work...and not 
 > that bad either...altough i have on board video also and when i was 
 > trying to use that it would get very bad sound....
 > 

I followed your suggestion. 
cat /usr/lib/xemacs-20.4/etc/sounds/im_so_happy.au > /dev/audio
works !

Thanks a lot so far.

After plugging a microphone I tried

dd if=/dev/audio of=qqq bs=8k count\x10

Playing back that file just gives silence. Did you try that too ?

Kind regards

Gerd

Re: Crystal CS4235 with 2.2.0-pre7

[Gerd Bavendiek]

Tony Nugent writes:
 > On Mon Jan 18 1999 at 19:54, Gerd Bavendiek wrote:
 > 
 > > Alan Cox stated a few weeks ago that there is support for the Crystal
 > > soundchip CS4235 in kernel 2.1.132ac1. I have an Acer motherboard with
 > > this chip and so decided to make the latest available kernel
 > > linux-2.2.0-pre7.
 > > 
 > > I found no references to CS4235 and so took the closest config option
 > > CS4232.
 > 
 > I think you need to enable "config experimental drivers" to enable it.
 > 

I tried but nothing visible changed in section "sound" or "low level
drivers" while doing make menuconfig.

 > > Unfortunately
 > > 
 > > cat /usr/lib/xemacs-20.4/etc/sounds/im_so_happy.au > /dev/audio
 > > 
 > > simply gave silence.
 > 
 > What does "cat /dev/sndstat" say?
 > 

Please have a second look on my posting.

Thanks !

Kind regards

Gerd

Re: Crystal CS4235 with 2.2.0-pre7

[Gerd Bavendiek]

Hi,

I'm glad that with the help of Moc Liamtoh, who suggested swapping DMA,
and Mike Haller, who provided me with a fix to the recent ad1848.c I'm 
now able to playback and record with my Crystal CS4235 and Linux
2.2.0-pre7. 

My defines in .config (those which are not set are not shown)
#
# Sound
#
CONFIG_SOUND=y
CONFIG_SOUND_OSS=y
CONFIG_SOUND_PSS=m
CONFIG_SOUND_CS4232=y
CONFIG_CS4232_BASES4
CONFIG_CS4232_IRQ=5
CONFIG_CS4232_DMA=1
CONFIG_CS4232_DMA2=0
CONFIG_CS4232_MPU_BASE:8
CONFIG_CS4232_MPU_IRQ=9

Mike's changes are as follows:

momo:/usr/src/linux/drivers/sound> diff ad1848.c.org ad1848.c     
1812c1812,1813
<               if (devc->model != MD_1848 && devc->model != MD_C930)
---
>               if (devc->model != MD_1848 && devc->model != MD_C930  && devc->model !> MD_4235)

Thanks a lot !

Kind regards

Gerd