Re: Is there plans to support SiS7019?

[Takashi Iwai <tiwai@suse.de>]

At Sun, 15 Aug 2004 05:18:48 +0530 (IST),
Vrihad Shoonya wrote:
> 
> Hi!
> 
> Thanks for the quick response.
> 
> > The question is whether SIS7019 is an AC97 chip, or it's the one to
> > control other AC97 chips.  If it's former, you should have another PCI
> > entry for the controller (check lspci).  In the latter case, you can
> > try snd-trident module with changes of pci id table from SIS7018 to
> > SIS7019.
> 
> SiS7019 controls other AC97 chips. The board which we have designed
> uses Real Tech's ALC202A (four channel) and ALC650 (six channel).
> Now what should I change in
> .../alsa-driver-1.0.0rc2/alsa-kernel/pci/trident/trident.c?
> I see following entries with SiS7018 mentioned:
> 
> <snip>
> 
> MODULE_DESCRIPTION("Trident 4D-WaveDX/NX & SiS SI7018");
> 
> <snip>
> 
> MODULE_DEVICES("{{Trident,4DWave DX},"
>                 "{Trident,4DWave NX},"
>                 "{SiS,SI7018 PCI Audio},"
>                 "{Best Union,Miss Melody 4DWave PCI},"
>                 "{HIS,4DWave PCI},"
>                 "{Warpspeed,ONSpeed 4DWave PCI},"
>                 "{Aztech Systems,PCI 64-Q3D},"
>                 "{Addonics,SV 750},"
>                 "{CHIC,True Sound 4Dwave},"
>                 "{Shark,Predator4D-PCI},"
>                 "{Jaton,SonicWave 4D},"
>                 "{Hoontech,SoundTrack Digital 4DWave NX}}");
> 
> <snip>
> 
> static struct pci_device_id snd_trident_ids[] = {
>         { 0x1023, 0x2000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, },   /* Trident
> 4DWave DX PCI Audio */
>         { 0x1023, 0x2001, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, },   /* Trident
> 4DWave NX PCI Audio */
>         { 0x1039, 0x7018, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, },   /* SiS
> SI7018 PCI Audio */
>         { 0, }
> };
> 
> <snip>
> 
> There are few more instances where related data structures are used
> in the code. In the declarations shown above, what changes should I
> make? Will changing the name part from 7018 to 7019 will be enough?

No, just change snd_trident_ids[] entry for 7018 to 7019's one (maybe
0x7019?).  Also, in trident_main.c, you need to change the line 3546

	trident->device = (pci->vendor << 16) | pci->device;

to
	trident->device = TRIDENT_DEVICE_ID_SI7018;

You can leave MODULE_* stuffs as they are.


Takashi


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