45 строки
1.1 KiB
C
45 строки
1.1 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Vortex Mixer support.
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*
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* There is much more than just the AC97 mixer...
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*
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*/
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#include <linux/time.h>
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#include <linux/init.h>
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#include <sound/core.h>
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#include "au88x0.h"
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static int remove_ctl(struct snd_card *card, const char *name)
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{
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struct snd_ctl_elem_id id;
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memset(&id, 0, sizeof(id));
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strcpy(id.name, name);
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id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
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return snd_ctl_remove_id(card, &id);
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}
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static int snd_vortex_mixer(vortex_t *vortex)
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{
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struct snd_ac97_bus *pbus;
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struct snd_ac97_template ac97;
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int err;
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static struct snd_ac97_bus_ops ops = {
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.write = vortex_codec_write,
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.read = vortex_codec_read,
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};
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if ((err = snd_ac97_bus(vortex->card, 0, &ops, NULL, &pbus)) < 0)
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return err;
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memset(&ac97, 0, sizeof(ac97));
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// Initialize AC97 codec stuff.
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ac97.private_data = vortex;
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ac97.scaps = AC97_SCAP_NO_SPDIF;
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err = snd_ac97_mixer(pbus, &ac97, &vortex->codec);
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vortex->isquad = ((vortex->codec == NULL) ? 0 : (vortex->codec->ext_id&0x80));
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remove_ctl(vortex->card, "Master Mono Playback Volume");
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remove_ctl(vortex->card, "Master Mono Playback Switch");
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return err;
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}
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