[alsa-devel] [PATCH 1/2] ad1848: separate header for registers definition

Krzysztof Helt krzysztof.h1 at poczta.fm
Sun Jun 15 19:26:53 CEST 2008

On Sun, 15 Jun 2008 18:07:02 +0200
Rene Herman <rene.herman at keyaccess.nl> wrote:

> On 15-06-08 12:41, Krzysztof Helt wrote:
> > This patch is a start combining ad1848_lib and cs4231_lib
> > functionality. My approach is to make the cs4231_lib module
> > use the ad1848_lib module. This should allow removing
> > most of identical functions from the cs4231_lib and use
> > the functions from the ad1848_lib directly.
> > 
> > If this approach is not a good idea, please drop the patch.
> > 
> > My current plan is to reuse the ad1848 register constants
> > in the cs423x code and remove duplicated cs4231 constants.
> > This should make the ad1848_lib and cs4231_lib easier to
> > compare for differences.
> > 
> > The next step is to use the snd_cs4231 structure instead of 
> > the snd_ad1848 structure inside the ad1848_lib. This will make
> > functions from the ad1848_lib taking the same arguments
> > as the functions in the cs4231_lib.
> > 
> > The last step would be to export needed functions from the
> > ad1848_lib and use them directly in the cs4231_lib.
> > 
> > This should reduce the size of the cs4231_lib while preserving
> > smaller the ad1848_lib for driver which uses only ad1848
> > functionality.
> I believe it would be going a bit overboard to actually make these two 
> dependent libs. Unification would seem a good plan probably but as far 
> as I'm concerned one lib to drive all these chips should do really.

It can be done this way as well.

> (*) perhaps under sound/drivers/wss, or sound/isa/lib/wss (or if you 
> don't care for the wss name, something else; the location is more the 
> point).

I like the wss name.

Takashi, please drop my patches. If the ad1848 and cs4231 should be unified
a correct way is to use cs4231 structures and constants in the ad1848 library.
Then it will be easy to merge them.


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