121 lines
3.9 KiB
C
121 lines
3.9 KiB
C
#ifndef __SOUND_EMU8000_H
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#define __SOUND_EMU8000_H
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/*
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* Defines for the emu8000 (AWE32/64)
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*
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* Copyright (C) 1999 Steve Ratcliffe
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* Copyright (C) 1999-2000 Takashi Iwai <tiwai@suse.de>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "emux_synth.h"
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#include "seq_kernel.h"
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/*
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* Hardware parameters.
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*/
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#define EMU8000_MAX_DRAM (28 * 1024 * 1024) /* Max on-board mem is 28Mb ???*/
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#define EMU8000_DRAM_OFFSET 0x200000 /* Beginning of on board ram */
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#define EMU8000_CHANNELS 32 /* Number of hardware channels */
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#define EMU8000_DRAM_VOICES 30 /* number of normal voices */
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/* Flags to set a dma channel to read or write */
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#define EMU8000_RAM_READ 0
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#define EMU8000_RAM_WRITE 1
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#define EMU8000_RAM_CLOSE 2
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#define EMU8000_RAM_MODE_MASK 0x03
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#define EMU8000_RAM_RIGHT 0x10 /* use 'right' DMA channel */
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enum {
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EMU8000_CONTROL_BASS = 0,
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EMU8000_CONTROL_TREBLE,
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EMU8000_CONTROL_CHORUS_MODE,
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EMU8000_CONTROL_REVERB_MODE,
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EMU8000_CONTROL_FM_CHORUS_DEPTH,
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EMU8000_CONTROL_FM_REVERB_DEPTH,
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EMU8000_NUM_CONTROLS,
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};
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/*
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* Structure to hold all state information for the emu8000 driver.
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*
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* Note 1: The chip supports 32 channels in hardware this is max_channels
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* some of the channels may be used for other things so max_channels is
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* the number in use for wave voices.
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*/
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typedef struct snd_emu8000 {
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snd_emux_t *emu;
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int index; /* sequencer client index */
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int seq_ports; /* number of sequencer ports */
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int fm_chorus_depth; /* FM OPL3 chorus depth */
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int fm_reverb_depth; /* FM OPL3 reverb depth */
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int mem_size; /* memory size */
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unsigned long port1; /* Port usually base+0 */
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unsigned long port2; /* Port usually at base+0x400 */
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unsigned long port3; /* Port usually at base+0x800 */
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struct resource *res_port1;
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struct resource *res_port2;
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struct resource *res_port3;
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unsigned short last_reg;/* Last register command */
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spinlock_t reg_lock;
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int dram_checked;
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snd_card_t *card; /* The card that this belongs to */
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int chorus_mode;
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int reverb_mode;
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int bass_level;
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int treble_level;
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snd_util_memhdr_t *memhdr;
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spinlock_t control_lock;
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snd_kcontrol_t *controls[EMU8000_NUM_CONTROLS];
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snd_pcm_t *pcm; /* pcm on emu8000 wavetable */
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} emu8000_t;
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/* sequencer device id */
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#define SNDRV_SEQ_DEV_ID_EMU8000 "emu8000-synth"
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/* exported functions */
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int snd_emu8000_new(snd_card_t *card, int device, long port, int seq_ports, snd_seq_device_t **ret);
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void snd_emu8000_poke(emu8000_t *emu, unsigned int port, unsigned int reg,
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unsigned int val);
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unsigned short snd_emu8000_peek(emu8000_t *emu, unsigned int port,
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unsigned int reg);
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void snd_emu8000_poke_dw(emu8000_t *emu, unsigned int port, unsigned int reg,
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unsigned int val);
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unsigned int snd_emu8000_peek_dw(emu8000_t *emu, unsigned int port,
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unsigned int reg);
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void snd_emu8000_dma_chan(emu8000_t *emu, int ch, int mode);
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void snd_emu8000_init_fm(emu8000_t *emu);
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void snd_emu8000_update_chorus_mode(emu8000_t *emu);
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void snd_emu8000_update_reverb_mode(emu8000_t *emu);
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void snd_emu8000_update_equalizer(emu8000_t *emu);
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int snd_emu8000_load_chorus_fx(emu8000_t *emu, int mode, const void __user *buf, long len);
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int snd_emu8000_load_reverb_fx(emu8000_t *emu, int mode, const void __user *buf, long len);
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#endif /* __SOUND_EMU8000_H */
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