linux/include/sound/hda_hwdep.h
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   1/*
   2 * HWDEP Interface for HD-audio codec
   3 *
   4 * Copyright (c) 2007 Takashi Iwai <tiwai@suse.de>
   5 *
   6 *  This driver is free software; you can redistribute it and/or modify
   7 *  it under the terms of the GNU General Public License as published by
   8 *  the Free Software Foundation; either version 2 of the License, or
   9 *  (at your option) any later version.
  10 *
  11 *  This driver is distributed in the hope that it will be useful,
  12 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 *  GNU General Public License for more details.
  15 *
  16 *  You should have received a copy of the GNU General Public License
  17 *  along with this program; if not, write to the Free Software
  18 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  19 */
  20
  21#ifndef __SOUND_HDA_HWDEP_H
  22#define __SOUND_HDA_HWDEP_H
  23
  24#define HDA_HWDEP_VERSION       ((1 << 16) | (0 << 8) | (0 << 0)) /* 1.0.0 */
  25
  26/* verb */
  27#define HDA_REG_NID_SHIFT       24
  28#define HDA_REG_VERB_SHIFT      8
  29#define HDA_REG_VAL_SHIFT       0
  30#define HDA_VERB(nid,verb,param)        ((nid)<<24 | (verb)<<8 | (param))
  31
  32struct hda_verb_ioctl {
  33        u32 verb;       /* HDA_VERB() */
  34        u32 res;        /* response */
  35};
  36
  37/*
  38 * ioctls
  39 */
  40#define HDA_IOCTL_PVERSION              _IOR('H', 0x10, int)
  41#define HDA_IOCTL_VERB_WRITE            _IOWR('H', 0x11, struct hda_verb_ioctl)
  42#define HDA_IOCTL_GET_WCAP              _IOWR('H', 0x12, struct hda_verb_ioctl)
  43
  44#endif
  45
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