xref: /openbmc/linux/include/sound/hda_hwdep.h (revision d0fa1179)
1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3  * HWDEP Interface for HD-audio codec
4  *
5  * Copyright (c) 2007 Takashi Iwai <tiwai@suse.de>
6  */
7 
8 #ifndef __SOUND_HDA_HWDEP_H
9 #define __SOUND_HDA_HWDEP_H
10 
11 #define HDA_HWDEP_VERSION	((1 << 16) | (0 << 8) | (0 << 0)) /* 1.0.0 */
12 
13 /* verb */
14 #define HDA_REG_NID_SHIFT	24
15 #define HDA_REG_VERB_SHIFT	8
16 #define HDA_REG_VAL_SHIFT	0
17 #define HDA_VERB(nid,verb,param)	((nid)<<24 | (verb)<<8 | (param))
18 
19 struct hda_verb_ioctl {
20 	u32 verb;	/* HDA_VERB() */
21 	u32 res;	/* response */
22 };
23 
24 /*
25  * ioctls
26  */
27 #define HDA_IOCTL_PVERSION		_IOR('H', 0x10, int)
28 #define HDA_IOCTL_VERB_WRITE		_IOWR('H', 0x11, struct hda_verb_ioctl)
29 #define HDA_IOCTL_GET_WCAP		_IOWR('H', 0x12, struct hda_verb_ioctl)
30 
31 #endif
32