workbench/devs/AHI/Drivers/EMU10kx/emu10kx-ac97.h

   1 /*
   2      emu10kx.audio - AHI driver for SoundBlaster Live! series
   3      Copyright (C) 2002-2005 Martin Blom <martin@blom.org>
   4
   5      This program is free software; you can redistribute it and/or
   6      modify it under the terms of the GNU General Public License
   7      as published by the Free Software Foundation; either version 2
   8      of the License, or (at your option) any later version.
   9
  10      This program is distributed in the hope that it will be useful,
  11      but WITHOUT ANY WARRANTY; without even the implied warranty of
  12      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13      GNU General Public License for more details.
  14
  15      You should have received a copy of the GNU General Public License
  16      along with this program; if not, write to the Free Software
  17      Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18 */
  19
  20 #ifndef AHI_Drivers_EMU10kx_emu10kx_ac97_h
  21 #define AHI_Drivers_EMU10kx_emu10kx_ac97_h
  22
  23 #include <config.h>
  24 #include <exec/semaphores.h>
  25 #include <utility/hooks.h>
  26
  27 #define EMU10KX_AC97_SEMAPHORE "emu10kx.ac97"
  28
  29 /* This is the global, public data structure used to communicate with
  30  * the AC97 part of emu10kx.audio. Find it, lock it, use it and then
  31  * release it. Beware of the license of this file and the driver!! */
  32
  33 struct EMU10kxAC97
  34 {
  35     struct SignalSemaphore  Semaphore;
  36     UWORD                   Cards;
  37     UWORD                   Version;
  38     UWORD                   Revision;
  39     struct Hook             GetFunc;
  40     struct Hook             SetFunc;
  41 };
  42
  43
  44 /* Message for GetFunc */
  45 struct AC97GetMessage
  46 {
  47     ULONG         CardNum;
  48     ULONG         Register;
  49 };
  50
  51 /* Message for SetFunc */
  52 struct AC97SetMessage
  53 {
  54     ULONG         CardNum;
  55     ULONG         Register;
  56     ULONG         Value;
  57 };
  58
  59 struct EMU10kxBase;
  60
  61 ULONG
  62 AC97GetFunc( struct Hook*           hook,
  63              struct EMU10kxBase*    EMU10kxBase,
  64              struct AC97GetMessage* msg );
  65
  66 VOID
  67 AC97SetFunc( struct Hook*           hook,
  68              struct EMU10kxBase*    EMU10kxBase,
  69              struct AC97SetMessage* msg );
  70
  71
  72 /* Special digital volume registers. Range is 0 (mute) to 100 (full). */
  73
  74 enum EMU10kxDSPVol {
  75   emu10kx_dsp_first = 0x80000000,
  76
  77 /* Input volume GPR */
  78   emu10kx_dsp_ahi_front_l = 0x80000000,
  79   emu10kx_dsp_ahi_front_r,
  80   emu10kx_dsp_ahi_rear_l,
  81   emu10kx_dsp_ahi_rear_r,
  82   emu10kx_dsp_ahi_surround_l,
  83   emu10kx_dsp_ahi_surround_r,
  84   emu10kx_dsp_ahi_center,
  85   emu10kx_dsp_ahi_lfe,
  86
  87   emu10kx_dsp_spdif_cd_l,
  88   emu10kx_dsp_spdif_cd_r,
  89   emu10kx_dsp_spdif_in_l,
  90   emu10kx_dsp_spdif_in_r,
  91
  92   /* Output volume GPR */
  93   emu10kx_dsp_spdif_front_l,
  94   emu10kx_dsp_spdif_front_r,
  95   emu10kx_dsp_spdif_rear_l,
  96   emu10kx_dsp_spdif_rear_r,
  97   emu10kx_dsp_spdif_surround_l,
  98   emu10kx_dsp_spdif_surround_r,
  99   emu10kx_dsp_spdif_center,
 100   emu10kx_dsp_spdif_lfe,
 101
 102   emu10kx_dsp_analog_front_l,
 103   emu10kx_dsp_analog_front_r,
 104   emu10kx_dsp_analog_rear_l,
 105   emu10kx_dsp_analog_rear_r,
 106   emu10kx_dsp_analog_surround_l,
 107   emu10kx_dsp_analog_surround_r,
 108   emu10kx_dsp_analog_center,
 109   emu10kx_dsp_analog_lfe,
 110
 111   /* AHI_FRONT-to-rear GPR */
 112   emu10kx_dsp_front_rear_l,
 113   emu10kx_dsp_front_rear_r,
 114
 115   /* AHI_SURROUND-to-rear GPR */
 116   emu10kx_dsp_surround_rear_l,
 117   emu10kx_dsp_surround_rear_r,
 118
 119   /* AHI_FRONT-to-center and AHI_FRONT-to-LFE GPRs */
 120   emu10kx_dsp_front_center,
 121   emu10kx_dsp_front_lfe,
 122
 123   emu10kx_dsp_last
 124 };
 125
 126
 127 #endif /* AHI_Drivers_EMU10kx_emu10kx_ac97_h */