linux-kernel - Re: [RFC/RFT v2 0/4] ALSA: hda - hdmi: ATI/AMD multi-channel and HBR support

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Message-ID: <524C4D0D.1070903@iki.fi>
Date:	Wed, 02 Oct 2013 19:42:53 +0300
From:	Anssi Hannula <anssi.hannula@....fi>
To:	Takashi Iwai <tiwai@...e.de>
CC:	alsa-devel@...a-project.org,
	Peter Frühberger <fritsch@...c.org>,
	Rafał Miłecki <zajec5@...il.com>,
	Olivier Langlois <olivier@...llion01.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [RFC/RFT v2 0/4] ALSA: hda - hdmi: ATI/AMD multi-channel and
 HBR support

02.10.2013 17:34, Takashi Iwai kirjoitti:
> At Tue,  1 Oct 2013 23:30:52 +0300,
> Anssi Hannula wrote:
[...]
>> Anssi Hannula (4):
>>       ALSA: hda - hdmi: Add ATI/AMD multi-channel audio support
>>       ALSA: hda - hdmi: Add ELD emulation for ATI/AMD codecs
>>       ALSA: hda - hdmi: Add HBR bitstreaming support for ATI/AMD HDMI codecs
>>       ALSA: hda - hdmi: Disable ramp-up/down for non-PCM on AMD codecs
> 
> 
> The patches generally look good, but I'm thinking whether it's cleaner
> to create a new ops items.  Maybe it can be specific to HDMI codec,
> e.g.
> 
> struct hda_hdmi_ops {
> 	int (*get_chan_slot)(struct hda_codec *codec, hda_nid_t pin, int slot);
> 	int (*set_chan_slot)(struct hda_codec *codec, hda_nid_t pin, int setup);
> 	int (*set_ca)(struct hda_codec *codec, hda_nid_t pin, int ca);
> 	....
> }
> 
> It's not sexy to have a thing like is_atihdmi() in the common header
> and see it in everywhere.

OK, will do that for next version.

Regarding hda_eld.c, I guess I'll add struct hda_hdmi_ops to struct
hdmi_spec, then keep snd_hdmi_ati_get_eld() in hda_eld.c but make it
non-static, so I can assign the correct _get_eld in patch_hdmi.c?


P.S. I asked whether new callbacks should be added in the previous RFC
message, but I guess that was easy to overlook as the message was a bit
incoherent... :)

--
Anssi Hannula

> thanks,
> 
> Takashi
> 
>>
>>  sound/pci/hda/hda_eld.c    | 157 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>>  sound/pci/hda/hda_local.h  |   5 +++
>>  sound/pci/hda/patch_hdmi.c | 424 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++------------------
>>  3 files changed, 547 insertions(+), 39 deletions(-)
>>
>> -- 
>> Anssi Hannula
>>


-- 
Anssi Hannula
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