LXR linux/include/sound/hdspm.h

   1#ifndef __SOUND_HDSPM_H
   2#define __SOUND_HDSPM_H
   3/*
   4 *   Copyright (C) 2003 Winfried Ritsch (IEM)
   5 *   based on hdsp.h from Thomas Charbonnel (thomas@undata.org)
   6 *                      
   7 *    
   8 *   This program is free software; you can redistribute it and/or modify
   9 *   it under the terms of the GNU General Public License as published by
  10 *   the Free Software Foundation; either version 2 of the License, or
  11 *   (at your option) any later version.
  12 *
  13 *   This program is distributed in the hope that it will be useful,
  14 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 *   GNU General Public License for more details.
  17 *
  18 *   You should have received a copy of the GNU General Public License
  19 *   along with this program; if not, write to the Free Software
  20 *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21 */
  22
  23/* Maximum channels is 64 even on 56Mode you have 64playbacks to matrix */
  24#define HDSPM_MAX_CHANNELS      64
  25
  26/* -------------------- IOCTL Peak/RMS Meters -------------------- */
  27
  28/* peam rms level structure like we get from hardware 
  29  
  30   maybe in future we can memory map it so I just copy it
  31   to user on ioctl call now an dont change anything
  32   rms are made out of low and high values
  33   where (long) ????_rms = (????_rms_l >> 8) + ((????_rms_h & 0xFFFFFF00)<<24)
  34   (i asume so from the code)
  35*/
  36
  37struct hdspm_peak_rms {
  38
  39        unsigned int level_offset[1024];
  40
  41        unsigned int input_peak[64];
  42        unsigned int playback_peak[64];
  43        unsigned int output_peak[64];
  44        unsigned int xxx_peak[64];      /* not used */
  45
  46        unsigned int reserved[256];     /* not used */
  47
  48        unsigned int input_rms_l[64];
  49        unsigned int playback_rms_l[64];
  50        unsigned int output_rms_l[64];
  51        unsigned int xxx_rms_l[64];     /* not used */
  52
  53        unsigned int input_rms_h[64];
  54        unsigned int playback_rms_h[64];
  55        unsigned int output_rms_h[64];
  56        unsigned int xxx_rms_h[64];     /* not used */
  57};
  58
  59struct hdspm_peak_rms_ioctl {
  60        struct hdspm_peak_rms *peak;
  61};
  62
  63/* use indirect access due to the limit of ioctl bit size */
  64#define SNDRV_HDSPM_IOCTL_GET_PEAK_RMS \
  65        _IOR('H', 0x40, struct hdspm_peak_rms_ioctl)
  66
  67/* ------------ CONFIG block IOCTL ---------------------- */
  68
  69struct hdspm_config_info {
  70        unsigned char pref_sync_ref;
  71        unsigned char wordclock_sync_check;
  72        unsigned char madi_sync_check;
  73        unsigned int system_sample_rate;
  74        unsigned int autosync_sample_rate;
  75        unsigned char system_clock_mode;
  76        unsigned char clock_source;
  77        unsigned char autosync_ref;
  78        unsigned char line_out;
  79        unsigned int passthru;
  80        unsigned int analog_out;
  81};
  82
  83#define SNDRV_HDSPM_IOCTL_GET_CONFIG_INFO \
  84        _IOR('H', 0x41, struct hdspm_config_info)
  85
  86
  87/* get Soundcard Version */
  88
  89struct hdspm_version {
  90        unsigned short firmware_rev;
  91};
  92
  93#define SNDRV_HDSPM_IOCTL_GET_VERSION _IOR('H', 0x43, struct hdspm_version)
  94
  95
  96/* ------------- get Matrix Mixer IOCTL --------------- */
  97
  98/* MADI mixer: 64inputs+64playback in 64outputs = 8192 => *4Byte =
  99 * 32768 Bytes
 100 */
 101
 102/* organisation is 64 channelfader in a continous memory block */
 103/* equivalent to hardware definition, maybe for future feature of mmap of
 104 * them
 105 */
 106/* each of 64 outputs has 64 infader and 64 outfader: 
 107   Ins to Outs mixer[out].in[in], Outstreams to Outs mixer[out].pb[pb] */
 108
 109#define HDSPM_MIXER_CHANNELS HDSPM_MAX_CHANNELS
 110
 111struct hdspm_channelfader {
 112        unsigned int in[HDSPM_MIXER_CHANNELS];
 113        unsigned int pb[HDSPM_MIXER_CHANNELS];
 114};
 115
 116struct hdspm_mixer {
 117        struct hdspm_channelfader ch[HDSPM_MIXER_CHANNELS];
 118};
 119
 120struct hdspm_mixer_ioctl {
 121        struct hdspm_mixer *mixer;
 122};
 123
 124/* use indirect access due to the limit of ioctl bit size */
 125#define SNDRV_HDSPM_IOCTL_GET_MIXER _IOR('H', 0x44, struct hdspm_mixer_ioctl)
 126
 127/* typedefs for compatibility to user-space */
 128typedef struct hdspm_peak_rms hdspm_peak_rms_t;
 129typedef struct hdspm_config_info hdspm_config_info_t;
 130typedef struct hdspm_version hdspm_version_t;
 131typedef struct hdspm_channelfader snd_hdspm_channelfader_t;
 132typedef struct hdspm_mixer hdspm_mixer_t;
 133
 134#endif                          /* __SOUND_HDSPM_H */
 135