[alsa-devel] Question about SuperH HDMI sound
Dear Mark Cc: Guennadi
In these days, Guennadi's "SuperH HDMI support patches" which support HDMI video output were posted to ML. And I created HDMI sound support for it in my local environment. It works and I would like to post this patch.
Thus, I would like to ask you about HDMI "sound" support file position.
HDMI "video" support file is under "drivers/video/sh_mobile_hdmi.c" Should I add sound support in it ? or under "sound/soc/codecs" ?
Best regards -- Kuninori Morimoto
On Fri, Jul 09, 2010 at 09:19:24AM +0900, Kuninori Morimoto wrote:
HDMI "video" support file is under "drivers/video/sh_mobile_hdmi.c" Should I add sound support in it ? or under "sound/soc/codecs" ?
One or the other :)
On PCs there is support for HDMI audio within the HDA subsystem so it would seem reasonable to add the support in ASoC if the hardware shares anything with the rest of the audio hardware in the SoC. It may also make sense to provide a driver which presents both video and audio interfaces, depending on how the hardware is structured.
If the hardware doesn't share anything with the other audio hardware then it might be as easy to just implement outside ASoC as a regular ALSA driver since HDMI "CODECs" are usually the TVs or other remote devices that are plugged in to the system rather than a component of the system itself so the CODEC/CPU split of ASoC isn't such a clear benefit.
Dear Mark
Thank you for response
HDMI "video" support file is under "drivers/video/sh_mobile_hdmi.c" Should I add sound support in it ? or under "sound/soc/codecs" ?
(snip)
make sense to provide a driver which presents both video and audio interfaces, depending on how the hardware is structured.
I use above idea. Thanks.
I send this patch after SH HDMI video support patch was applied.
Best regards -- Kuninori Morimoto
Dear Mark
Thank you for response
HDMI "video" support file is under "drivers/video/sh_mobile_hdmi.c" Should I add sound support in it ? or under "sound/soc/codecs" ?
(snip)
make sense to provide a driver which presents both video and audio interfaces, depending on how the hardware is structured.
I use above idea. Thanks.
I send this patch after SH HDMI video support patch was applied.
Best regards -- Kuninori Morimoto
participants (2)
-
Kuninori Morimoto -
Mark Brown