[ivtv-users] cx18: saa5249.c:135:error:implicit declaration of 'msleep_interruptible'

[Andy Walls]

On Thu, 2008-09-18 at 20:17 -0500, Mr cctsurf wrote:
> I am, however, running into an insertion problem now... I'm afraid their connected
> the following is my dmesg:
> 
> Linux video capture interface: v2.00

> cx18-0: Unreasonably low latency timer, setting to 64 (was 32)
> cx18-0: cx23418 revision 01010000 (B)
> tveeprom 2-0050: Huh, no eeprom present (err=-121)?
> tveeprom 2-0050: Encountered bad packet header [01]. Corrupt or not a Hauppauge eeprom.
> cx18-0: Invalid EEPROM

> DVB: registering new adapter (cx18)
> s5h1409_readreg: readreg error (ret == -121)
> cx18-0: frontend initialization failed
> cx18-0: DVB failed to register


You appear to be running into the problem where the CX23418 is
responding properly to back-to-back accesses to different regions of the
CX23418.  You should attempt to load the cx18 module with it's
mmio_ndelay option set to some multiple of 30.3 ns: 31, 61, 91, 121,
152, or some other multiple, until EEPROM recognition and other I2C
operations work properly (no -121 -EREMOTEIO errors).

If you can't things to work doing that, we can try some other things
later, like:
a. use longer delays to reset chips on the card
b. set the secondary latency timer of the bridge the CX23418 is behind a
little longer


> cx18-0: Registered device video2 for encoder YUV (2 MB)
> cx18-0: Registered device video3 for encoder PCM audio (1 MB)
> cx18-0: Registered device radio0 for encoder radio
> cx18-0: Error -12 registering devices
> tda9887 3-0043: destroying instance
> cx18-0: Error -12 on initialization
> cx18: probe of 0000:00:0a.0 failed with error -12
> cx18:  End initialization

-12 is -ENOMEM: you ran out of memory for allocating buffers.  To
address this you have a few things to try:

1. Add a 'vmalloc=xxxM' to your kernel command line that is 128M greater
than what /proc/meminfo currently shows for your VmallocTotal.  The
CX23418 consumes a contiguous 64 MB chunk of address space, and may
leave you low on vmalloc addresses (esp. on 32 bit kernels).

2. Set the  enc_yuv_buffers,  enc_vbi_buffers, enc_pcm_buffers module
parameters to 0 and the enc_mpg_buffers to 1 MB instead of the default
of 2 MB.  This is just a work around, until you can figure out how to
get more dynamically allocated memory available on your system available
to the cx18 driver.




> I hope it's not false hope, I'm also interested if there is a git checkout known to work.

> In retrospect, I don't think it's a headers change issue, because I never changed them on this computer until now.

It should not be that, AFAICT.

Regards,
Andy


> Thanks,
> cctsurf