Re: [PATCH] cs46xx, SPDIF output fixes, AC3 through IEC958 should work OK

[Takashi Iwai <tiwai@suse.de>]

At Mon, 03 Mar 2003 02:25:03 +0100,
Benny Sjostrand wrote:
> 
> [1  <text/plain; us-ascii (7bit)>]
> Hi!
> 
> With this patch AC3 through IEC958 should work OK, and synchronizations 
> problems with the SPDIF output should be gone. (about SPDIF input the 
> status is still the same)
> 
> I've tested it with ogle 0.9, the AC3 stuff  seems to work well, have 
> not tested with xine (yet).
> 
> This patch adds a new DSP firmware routine, that makes it's possible to 
> DMA from host directly to the SPDIF output. This will affect all 
> playback on IEC958 device on 48khz, other rates will (should) work 
> exactly as before.
> 
> - Added the cwcdma DSP firmware module
> - Fixed a minor bug in cs46xx_iec958_pre_open(...)
> - in cs46xx_dsp_enable_spdif_hw(...), disable SPDIF hw
>  before enabling, this seems to help solving the synchronization issue
> - Some changes in cs46xx_dsp_create_pcm_channel(...)  and 
> cs46xx_dsp_create_src_task_scb(...) to adapt to the new DSP firmware.
> 
> Well, with the new firmware module I would consider this patch a little 
> bit experimental ;)

thanks, applied to cvs.
it's working fine on my DMX x-fire 1024.


Takashi


-------------------------------------------------------
This sf.net email is sponsored by:ThinkGeek
Welcome to geek heaven.
http://thinkgeek.com/sf