LXR linux/sound/pci/au88x0/au88x0

   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
  13static int remove_ctl(struct snd_card *card, const char *name)
  14{
  15        struct snd_ctl_elem_id id;
  16        memset(&id, 0, sizeof(id));
  17        strcpy(id.name, name);
  18        id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
  19        return snd_ctl_remove_id(card, &id);
  20}
  21
  22static int snd_vortex_mixer(vortex_t *vortex)
  23{
  24        struct snd_ac97_bus *pbus;
  25        struct snd_ac97_template ac97;
  26        int err;
  27        static struct snd_ac97_bus_ops ops = {
  28                .write = vortex_codec_write,
  29                .read = vortex_codec_read,
  30        };
  31
  32        if ((err = snd_ac97_bus(vortex->card, 0, &ops, NULL, &pbus)) < 0)
  33                return err;
  34        memset(&ac97, 0, sizeof(ac97));
  35        // Initialize AC97 codec stuff.
  36        ac97.private_data = vortex;
  37        ac97.scaps = AC97_SCAP_NO_SPDIF;
  38        err = snd_ac97_mixer(pbus, &ac97, &vortex->codec);
  39        vortex->isquad = ((vortex->codec == NULL) ?  0 : (vortex->codec->ext_id&0x80));
  40        remove_ctl(vortex->card, "Master Mono Playback Volume");
  41        remove_ctl(vortex->card, "Master Mono Playback Switch");
  42        return err;
  43}
  44