mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-11-18 23:54:26 +08:00
2807314d46
Added a hwdep interface for each codec (enabled per kconfig). This interface can be used for reading/writing HD-audio verbs and other purposes as future extensions. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
45 lines
1.4 KiB
C
45 lines
1.4 KiB
C
/*
|
|
* HWDEP Interface for HD-audio codec
|
|
*
|
|
* Copyright (c) 2007 Takashi Iwai <tiwai@suse.de>
|
|
*
|
|
* This driver is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This driver is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
#ifndef __SOUND_HDA_HWDEP_H
|
|
#define __SOUND_HDA_HWDEP_H
|
|
|
|
#define HDA_HWDEP_VERSION ((1 << 16) | (0 << 8) | (0 << 0)) /* 1.0.0 */
|
|
|
|
/* verb */
|
|
#define HDA_REG_NID_SHIFT 24
|
|
#define HDA_REG_VERB_SHIFT 8
|
|
#define HDA_REG_VAL_SHIFT 0
|
|
#define HDA_VERB(nid,verb,param) ((nid)<<24 | (verb)<<8 | (param))
|
|
|
|
struct hda_verb_ioctl {
|
|
u32 verb; /* HDA_VERB() */
|
|
u32 res; /* response */
|
|
};
|
|
|
|
/*
|
|
* ioctls
|
|
*/
|
|
#define HDA_IOCTL_PVERSION _IOR('H', 0x10, int)
|
|
#define HDA_IOCTL_VERB_WRITE _IOWR('H', 0x11, struct hda_verb_ioctl)
|
|
#define HDA_IOCTL_GET_WCAP _IOWR('H', 0x12, struct hda_verb_ioctl)
|
|
|
|
#endif
|