drivers/sound/emu10k1/voicemgr.h

   1 /*
   2  **********************************************************************
   3  *     sblive_voice.h -- EMU Voice Resource Manager header file
   4  *     Copyright 1999, 2000 Creative Labs, Inc.
   5  *
   6  **********************************************************************
   7  *
   8  *     Date                 Author          Summary of changes
   9  *     ----                 ------          ------------------
  10  *     October 20, 1999     Bertrand Lee    base code release
  11  *
  12  **********************************************************************
  13  *
  14  *     This program is free software; you can redistribute it and/or
  15  *     modify it under the terms of the GNU General Public License as
  16  *     published by the Free Software Foundation; either version 2 of
  17  *     the License, or (at your option) any later version.
  18  *
  19  *     This program is distributed in the hope that it will be useful,
  20  *     but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22  *     GNU General Public License for more details.
  23  *
  24  *     You should have received a copy of the GNU General Public
  25  *     License along with this program; if not, write to the Free
  26  *     Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139,
  27  *     USA.
  28  *
  29  **********************************************************************
  30  */
  31
  32 #ifndef _VOICEMGR_H
  33 #define _VOICEMGR_H
  34
  35 #include "hwaccess.h"
  36
  37 /* struct emu_voice.usage flags */
  38 #define VOICE_USAGE_FREE                0x01
  39 #define VOICE_USAGE_MIDI                0x02
  40 #define VOICE_USAGE_PLAYBACK            0x04
  41
  42 /* struct emu_voice.flags flags */
  43 #define VOICE_FLAGS_STEREO              0x02
  44 #define VOICE_FLAGS_16BIT               0x04
  45
  46 struct voice_param
  47 {
  48         /* FX bus amount send */
  49
  50         u32 send_routing;
  51
  52         u32 send_a;
  53         u32 send_b;
  54         u32 send_c;
  55         u32 send_d;
  56
  57         u32 initial_fc;
  58         u32 fc_target;
  59
  60         u32 initial_attn;
  61         u32 volume_target;
  62
  63         u32 byampl_env_sustain;
  64         u32 byampl_env_decay;
  65 };
  66
  67 struct voice_mem {
  68         int emupageindex;
  69         void *addr[BUFMAXPAGES];
  70         dma_addr_t dma_handle[BUFMAXPAGES];
  71         u32 pages;
  72 };
  73
  74 struct emu_voice
  75 {
  76         struct emu10k1_card *card;
  77         u8 usage;               /* Free, MIDI, playback */
  78         u8 num;                 /* Voice ID */
  79         u8 flags;               /* Stereo/mono, 8/16 bit */
  80
  81         u32 startloop;
  82         u32 endloop;
  83         u32 start;
  84
  85         u32 initial_pitch;
  86         u32 pitch_target;
  87
  88         struct voice_param params[2];
  89
  90         struct voice_mem mem;
  91 };
  92
  93 int emu10k1_voice_alloc_buffer(struct emu10k1_card *, struct voice_mem *, u32);
  94 void emu10k1_voice_free_buffer(struct emu10k1_card *, struct voice_mem *);
  95 int emu10k1_voice_alloc(struct emu10k1_card *, struct emu_voice *);
  96 void emu10k1_voice_free(struct emu_voice *);
  97 void emu10k1_voice_playback_setup(struct emu_voice *);
  98 void emu10k1_voices_start(struct emu_voice *, unsigned int, int);
  99 void emu10k1_voices_stop(struct emu_voice *, int);
 100
 101 #endif /* _VOICEMGR_H */