voicemgr.h
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/*
**********************************************************************
* sblive_voice.h -- EMU Voice Resource Manager header file
* Copyright 1999, 2000 Creative Labs, Inc.
*
**********************************************************************
*
* Date Author Summary of changes
* ---- ------ ------------------
* October 20, 1999 Bertrand Lee base code release
*
**********************************************************************
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this program; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139,
* USA.
*
**********************************************************************
*/
#ifndef _VOICEMGR_H
#define _VOICEMGR_H
#include "hwaccess.h"
/* struct emu_voice.usage flags */
#define VOICE_USAGE_FREE 0x01
#define VOICE_USAGE_MIDI 0x02
#define VOICE_USAGE_PLAYBACK 0x04
/* struct emu_voice.flags flags */
#define VOICE_FLAGS_STEREO 0x02
#define VOICE_FLAGS_16BIT 0x04
struct voice_param
{
/* FX bus amount send */
u32 send_routing;
// audigy only:
u32 send_routing2;
u32 send_dcba;
// audigy only:
u32 send_hgfe;
u32 initial_fc;
u32 fc_target;
u32 initial_attn;
u32 volume_target;
u32 byampl_env_sustain;
u32 byampl_env_decay;
};
struct voice_mem {
int emupageindex;
void *addr[BUFMAXPAGES];
dma_addr_t dma_handle[BUFMAXPAGES];
u32 pages;
};
struct emu_voice
{
struct emu10k1_card *card;
u8 usage; /* Free, MIDI, playback */
u8 num; /* Voice ID */
u8 flags; /* Stereo/mono, 8/16 bit */
u32 startloop;
u32 endloop;
u32 start;
u32 initial_pitch;
u32 pitch_target;
struct voice_param params[2];
struct voice_mem mem;
};
int emu10k1_voice_alloc_buffer(struct emu10k1_card *, struct voice_mem *, u32);
void emu10k1_voice_free_buffer(struct emu10k1_card *, struct voice_mem *);
int emu10k1_voice_alloc(struct emu10k1_card *, struct emu_voice *);
void emu10k1_voice_free(struct emu_voice *);
void emu10k1_voice_playback_setup(struct emu_voice *);
void emu10k1_voices_start(struct emu_voice *, unsigned int, int);
void emu10k1_voices_stop(struct emu_voice *, int);
#endif /* _VOICEMGR_H */