release/src-rt-6.x.4708/linux/linux-2.6.36/sound/pci/au88x0/au88x0_mixer.c

   1 /*
   2  * Vortex Mixer support.
   3  *
   4  * There is much more than just the AC97 mixer...
   5  *
   6  */
   7
   8 #include <linux/time.h>
   9 #include <linux/init.h>
  10 #include <sound/core.h>
  11 #include "au88x0.h"
  12
  13 static int __devinit snd_vortex_mixer(vortex_t * vortex)
  14 {
  15         struct snd_ac97_bus *pbus;
  16         struct snd_ac97_template ac97;
  17         int err;
  18         static struct snd_ac97_bus_ops ops = {
  19                 .write = vortex_codec_write,
  20                 .read = vortex_codec_read,
  21         };
  22
  23         if ((err = snd_ac97_bus(vortex->card, 0, &ops, NULL, &pbus)) < 0)
  24                 return err;
  25         memset(&ac97, 0, sizeof(ac97));
  26         // Intialize AC97 codec stuff.
  27         ac97.private_data = vortex;
  28         ac97.scaps = AC97_SCAP_NO_SPDIF;
  29         err = snd_ac97_mixer(pbus, &ac97, &vortex->codec);
  30         vortex->isquad = ((vortex->codec == NULL) ?  0 : (vortex->codec->ext_id&0x80));
  31         return err;
  32 }