release/src-rt-6.x/linux/linux-2.6/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 /* 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
  37 struct 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
  59 struct 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 _IOR('H', 0x40, struct hdspm_peak_rms_ioctl)
  65
  66 /* ------------ CONFIG block IOCTL ---------------------- */
  67
  68 struct hdspm_config_info {
  69         unsigned char pref_sync_ref;
  70         unsigned char wordclock_sync_check;
  71         unsigned char madi_sync_check;
  72         unsigned int system_sample_rate;
  73         unsigned int autosync_sample_rate;
  74         unsigned char system_clock_mode;
  75         unsigned char clock_source;
  76         unsigned char autosync_ref;
  77         unsigned char line_out;
  78         unsigned int passthru;
  79         unsigned int analog_out;
  80 };
  81
  82 #define SNDRV_HDSPM_IOCTL_GET_CONFIG_INFO _IOR('H', 0x41, struct hdspm_config_info)
  83
  84
  85 /* get Soundcard Version */
  86
  87 struct hdspm_version {
  88         unsigned short firmware_rev;
  89 };
  90
  91 #define SNDRV_HDSPM_IOCTL_GET_VERSION _IOR('H', 0x43, struct hdspm_version)
  92
  93
  94 /* ------------- get Matrix Mixer IOCTL --------------- */
  95
  96 /* MADI mixer: 64inputs+64playback in 64outputs = 8192 => *4Byte = 32768 Bytes */
  97
  98 /* organisation is 64 channelfader in a continous memory block */
  99 /* equivalent to hardware definition, maybe for future feature of mmap of them */
 100 /* each of 64 outputs has 64 infader and 64 outfader:
 101    Ins to Outs mixer[out].in[in], Outstreams to Outs mixer[out].pb[pb] */
 102
 103 #define HDSPM_MIXER_CHANNELS HDSPM_MAX_CHANNELS
 104
 105 struct hdspm_channelfader {
 106         unsigned int in[HDSPM_MIXER_CHANNELS];
 107         unsigned int pb[HDSPM_MIXER_CHANNELS];
 108 };
 109
 110 struct hdspm_mixer {
 111         struct hdspm_channelfader ch[HDSPM_MIXER_CHANNELS];
 112 };
 113
 114 struct hdspm_mixer_ioctl {
 115         struct hdspm_mixer *mixer;
 116 };
 117
 118 /* use indirect access due to the limit of ioctl bit size */
 119 #define SNDRV_HDSPM_IOCTL_GET_MIXER _IOR('H', 0x44, struct hdspm_mixer_ioctl)
 120
 121 /* typedefs for compatibility to user-space */
 122 typedef struct hdspm_peak_rms hdspm_peak_rms_t;
 123 typedef struct hdspm_config_info hdspm_config_info_t;
 124 typedef struct hdspm_version hdspm_version_t;
 125 typedef struct hdspm_channelfader snd_hdspm_channelfader_t;
 126 typedef struct hdspm_mixer hdspm_mixer_t;
 127
 128 #endif                          /* __SOUND_HDSPM_H */