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 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 22 static 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