xref: /openbmc/linux/sound/pci/au88x0/au88x0_mixer.c (revision 1da177e4)
1 /*
2  * Vortex Mixer support.
3  *
4  * There is much more than just the AC97 mixer...
5  *
6  */
7 
8 #include <sound/driver.h>
9 #include <linux/time.h>
10 #include <linux/init.h>
11 #include <sound/core.h>
12 #include "au88x0.h"
13 
14 static int __devinit snd_vortex_mixer(vortex_t * vortex)
15 {
16 	ac97_bus_t *pbus;
17 	ac97_template_t ac97;
18 	int err;
19 	static ac97_bus_ops_t ops = {
20 		.write = vortex_codec_write,
21 		.read = vortex_codec_read,
22 	};
23 
24 	if ((err = snd_ac97_bus(vortex->card, 0, &ops, NULL, &pbus)) < 0)
25 		return err;
26 	memset(&ac97, 0, sizeof(ac97));
27 	// Intialize AC97 codec stuff.
28 	ac97.private_data = vortex;
29 	ac97.scaps = AC97_SCAP_NO_SPDIF;
30 	err = snd_ac97_mixer(pbus, &ac97, &vortex->codec);
31 	vortex->isquad = ((vortex->codec == NULL) ?  0 : (vortex->codec->ext_id&0x80));
32 	return err;
33 }
34