| 1 | // SPDX-License-Identifier: GPL-2.0 |
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| 2 | /* |
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| 3 | * Vortex Mixer support. |
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| 4 | * |
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| 5 | * There is much more than just the AC97 mixer... |
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| 6 | * |
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| 7 | */ |
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| 8 | |
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| 9 | #include <linux/time.h> |
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| 10 | #include <linux/init.h> |
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| 11 | #include <sound/core.h> |
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| 12 | #include "au88x0.h" |
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| 13 | |
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| 14 | static int remove_ctl(struct snd_card *card, const char *name) |
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| 15 | { |
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| 16 | struct snd_ctl_elem_id id; |
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| 17 | memset(&id, 0, sizeof(id)); |
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| 18 | strscpy(id.name, name); |
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| 19 | id.iface = SNDRV_CTL_ELEM_IFACE_MIXER; |
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| 20 | return snd_ctl_remove_id(card, id: &id); |
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| 21 | } |
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| 22 | |
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| 23 | static int snd_vortex_mixer(vortex_t *vortex) |
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| 24 | { |
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| 25 | struct snd_ac97_bus *pbus; |
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| 26 | struct snd_ac97_template ac97; |
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| 27 | int err; |
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| 28 | static const struct snd_ac97_bus_ops ops = { |
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| 29 | .write = vortex_codec_write, |
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| 30 | .read = vortex_codec_read, |
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| 31 | }; |
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| 32 | |
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| 33 | err = snd_ac97_bus(card: vortex->card, num: 0, ops: &ops, NULL, rbus: &pbus); |
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| 34 | if (err < 0) |
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| 35 | return err; |
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| 36 | memset(&ac97, 0, sizeof(ac97)); |
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| 37 | // Initialize AC97 codec stuff. |
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| 38 | ac97.private_data = vortex; |
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| 39 | ac97.scaps = AC97_SCAP_NO_SPDIF; |
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| 40 | err = snd_ac97_mixer(bus: pbus, template: &ac97, rac97: &vortex->codec); |
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| 41 | vortex->isquad = ((vortex->codec == NULL) ? 0 : (vortex->codec->ext_id&0x80)); |
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| 42 | remove_ctl(card: vortex->card, name: "Master Mono Playback Volume" ); |
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| 43 | remove_ctl(card: vortex->card, name: "Master Mono Playback Switch" ); |
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| 44 | return err; |
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| 45 | } |
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| 46 | |
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