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