Re: [ivtv-devel] Problems loading ivtv in Xen - DMA issues?

[David Muench <davemuench@gmail.com>]

On 7/8/05, Keir Fraser <Keir.Fraser@cl.cam.ac.uk> wrote:
> 
> I've pushed the fix to our xen-2.0-testing hg repository on
> xenbits.xensource.com. If you don't want to use hg, I've also put a
> source tarball at http://www.cl.cam.ac.uk/~kaf24/xen-2.0-testing.tar.gz
> (you'll still need to build it yourself though).
> 
> Please let me know if this fixes your problem -- if so then I'll also
> apply the fix to our unstable repository.

Hi Keir,

Looks like it didn't quite work. I started a capture and then ended it
20 seconds later, and I still have a zero byte file. Ivtv has some new
messages in dmesg though:

saa7115: decoder disable output
saa7115: decoder set input (8)
saa7115: now setting S-Video input
ivtv: Setting audio matrix to input 1, output 1
saa7115: decoder enable output
saa7115: decoder disable output
saa7115: decoder enable output
ivtv: DEC: REG_ENCSG1LEN wait failed
ivtv: DMA Registers State: xfer: 0x00000002, state: 0x00000001
dec_addr: 0x00000000 enc_addr: 0x44360060 control: 0x00000003
ivtv: DMA DEC Buffers:
 0x00000000:0x00000000:0x00000000
ivtv: DMA ENC Buffers:
 0x00000000:0x00000000:0x00000000
 0x00000000:0x00000000:0x00000000
 0x00000000:0x00000000:0x00000000
 0x00000000:0x00000000:0x00000000
 0x00000000:0x00000000:0x00000000
 0x00000000:0x00000000:0x00000000
 0x00000000:0x00000000:0x00000000
 0x00000000:0x00000000:0x00000000
ivtv: ENC: REG_DMAXFER wait failed
ivtv: DMA Registers State: xfer: 0x00000002, state: 0x00000001
dec_addr: 0x00000000 enc_addr: 0x44360060 control: 0x00000003
ivtv: DMA DEC Buffers:
 0x00000000:0x00000000:0x00000000
ivtv: DMA ENC Buffers:
 0x00000000:0x00000000:0x00000000
 0x00000000:0x00000000:0x00000000
 0x00000000:0x00000000:0x00000000
 0x00000000:0x00000000:0x00000000
 0x00000000:0x00000000:0x00000000
 0x00000000:0x00000000:0x00000000
 0x00000000:0x00000000:0x00000000
 0x00000000:0x00000000:0x00000000
ivtv: ENC: User stopped capture.
ivtv: ENC: DMA still Pending while stoping capture!
ivtv: ENC: REG_DMASTATUS2 wait failed
ivtv: DMA Registers State: xfer: 0x00000002, state: 0x00000001
dec_addr: 0x00000000 enc_addr: 0x44360060 control: 0x00000003
ivtv: DMA DEC Buffers:
 0x00000000:0x00000000:0x00000000
ivtv: DMA ENC Buffers:
 0x00000000:0x00000000:0x00000000
 0x00000000:0x00000000:0x00000000
 0x00000000:0x00000000:0x00000000
 0x00000000:0x00000000:0x00000000
 0x00000000:0x00000000:0x00000000
 0x00000000:0x00000000:0x00000000
 0x00000000:0x00000000:0x00000000
 0x00000000:0x00000000:0x00000000

Thanks,
Dave

-- 
David Muench - davemuench@gmail.com
Jabber ID: dave@jabber.wasteland.org