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