include/sound/hdspm.h

   1 #ifndef __SOUND_HDSPM_H         /* -*- linux-c -*- */
   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 typedef struct _snd_hdspm_peak_rms hdspm_peak_rms_t;
  29
  30 /* peam rms level structure like we get from hardware
  31
  32    maybe in future we can memory map it so I just copy it
  33    to user on ioctl call now an dont change anything
  34    rms are made out of low and high values
  35    where (long) ????_rms = (????_rms_l >> 8) + ((????_rms_h & 0xFFFFFF00)<<24)
  36    (i asume so from the code)
  37 */
  38
  39 struct _snd_hdspm_peak_rms {
  40
  41         unsigned int level_offset[1024];
  42
  43         unsigned int input_peak[64];
  44         unsigned int playback_peak[64];
  45         unsigned int output_peak[64];
  46         unsigned int xxx_peak[64];      /* not used */
  47
  48         unsigned int reserved[256];     /* not used */
  49
  50         unsigned int input_rms_l[64];
  51         unsigned int playback_rms_l[64];
  52         unsigned int output_rms_l[64];
  53         unsigned int xxx_rms_l[64];     /* not used */
  54
  55         unsigned int input_rms_h[64];
  56         unsigned int playback_rms_h[64];
  57         unsigned int output_rms_h[64];
  58         unsigned int xxx_rms_h[64];     /* not used */
  59 };
  60
  61 struct sndrv_hdspm_peak_rms_ioctl {
  62         hdspm_peak_rms_t *peak;
  63 };
  64
  65 /* use indirect access due to the limit of ioctl bit size */
  66 #define SNDRV_HDSPM_IOCTL_GET_PEAK_RMS _IOR('H', 0x40, struct sndrv_hdspm_peak_rms_ioctl)
  67
  68 /* ------------ CONFIG block IOCTL ---------------------- */
  69
  70 typedef struct _snd_hdspm_config_info hdspm_config_info_t;
  71
  72 struct _snd_hdspm_config_info {
  73         unsigned char pref_sync_ref;
  74         unsigned char wordclock_sync_check;
  75         unsigned char madi_sync_check;
  76         unsigned int system_sample_rate;
  77         unsigned int autosync_sample_rate;
  78         unsigned char system_clock_mode;
  79         unsigned char clock_source;
  80         unsigned char autosync_ref;
  81         unsigned char line_out;
  82         unsigned int passthru;
  83         unsigned int analog_out;
  84 };
  85
  86 #define SNDRV_HDSPM_IOCTL_GET_CONFIG_INFO _IOR('H', 0x41, hdspm_config_info_t)
  87
  88
  89 /* get Soundcard Version */
  90
  91 typedef struct _snd_hdspm_version hdspm_version_t;
  92
  93 struct _snd_hdspm_version {
  94         unsigned short firmware_rev;
  95 };
  96
  97 #define SNDRV_HDSPM_IOCTL_GET_VERSION _IOR('H', 0x43, hdspm_version_t)
  98
  99
 100 /* ------------- get Matrix Mixer IOCTL --------------- */
 101
 102 /* MADI mixer: 64inputs+64playback in 64outputs = 8192 => *4Byte = 32768 Bytes */
 103
 104 /* organisation is 64 channelfader in a continous memory block */
 105 /* equivalent to hardware definition, maybe for future feature of mmap of them */
 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
 111 typedef struct _snd_hdspm_channelfader snd_hdspm_channelfader_t;
 112
 113 struct _snd_hdspm_channelfader {
 114         unsigned int in[HDSPM_MIXER_CHANNELS];
 115         unsigned int pb[HDSPM_MIXER_CHANNELS];
 116 };
 117
 118 typedef struct _snd_hdspm_mixer hdspm_mixer_t;
 119
 120 struct _snd_hdspm_mixer {
 121         snd_hdspm_channelfader_t ch[HDSPM_MIXER_CHANNELS];
 122 };
 123
 124 struct sndrv_hdspm_mixer_ioctl {
 125         hdspm_mixer_t *mixer;
 126 };
 127
 128 /* use indirect access due to the limit of ioctl bit size */
 129 #define SNDRV_HDSPM_IOCTL_GET_MIXER _IOR('H', 0x44, struct sndrv_hdspm_mixer_ioctl)
 130
 131 #endif                          /* __SOUND_HDSPM_H */