| 1 | #ifndef __EMU8000_H
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| 2 | #define __EMU8000_H
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| 3 | /*
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| 4 | * Defines for the emu8000 (AWE32/64)
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| 5 | *
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| 6 | * Copyright (C) 1999 Steve Ratcliffe
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| 7 | * Copyright (C) 1999-2000 Takashi Iwai <tiwai@suse.de>
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| 8 | *
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| 9 | * This program is free software; you can redistribute it and/or modify
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| 10 | * it under the terms of the GNU General Public License as published by
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| 11 | * the Free Software Foundation; either version 2 of the License, or
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| 12 | * (at your option) any later version.
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| 13 | *
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| 14 | * This program is distributed in the hope that it will be useful,
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| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 17 | * GNU General Public License for more details.
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| 18 | *
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| 19 | * You should have received a copy of the GNU General Public License
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| 20 | * along with this program; if not, write to the Free Software
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| 21 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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| 22 | */
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| 23 |
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| 24 | #include "driver.h"
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| 25 | #include "emux_synth.h"
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| 26 | #include "seq_kernel.h"
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| 27 |
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| 28 | /*
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| 29 | * Hardware parameters.
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| 30 | */
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| 31 | #define EMU8000_MAX_DRAM (28 * 1024 * 1024) /* Max on-board mem is 28Mb ???*/
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| 32 | #define EMU8000_DRAM_OFFSET 0x200000 /* Beginning of on board ram */
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| 33 | #define EMU8000_CHANNELS 32 /* Number of hardware channels */
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| 34 | #define EMU8000_DRAM_VOICES 30 /* number of normal voices */
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| 35 |
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| 36 | /* Flags to set a dma channel to read or write */
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| 37 | #define EMU8000_RAM_READ 0
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| 38 | #define EMU8000_RAM_WRITE 1
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| 39 | #define EMU8000_RAM_CLOSE 2
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| 40 | #define EMU8000_RAM_MODE_MASK 0x03
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| 41 | #define EMU8000_RAM_RIGHT 0x10 /* use 'right' DMA channel */
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| 42 |
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| 43 | enum {
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| 44 | EMU8000_CONTROL_BASS = 0,
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| 45 | EMU8000_CONTROL_TREBLE,
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| 46 | EMU8000_CONTROL_CHORUS_MODE,
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| 47 | EMU8000_CONTROL_REVERB_MODE,
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| 48 | EMU8000_CONTROL_FM_CHORUS_DEPTH,
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| 49 | EMU8000_CONTROL_FM_REVERB_DEPTH,
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| 50 | EMU8000_NUM_CONTROLS,
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| 51 | };
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| 52 |
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| 53 | /*
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| 54 | * Structure to hold all state information for the emu8000 driver.
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| 55 | *
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| 56 | * Note 1: The chip supports 32 channels in hardware this is max_channels
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| 57 | * some of the channels may be used for other things so max_channels is
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| 58 | * the number in use for wave voices.
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| 59 | */
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| 60 | typedef struct snd_emu8000 {
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| 61 |
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| 62 | snd_emux_t *emu;
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| 63 |
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| 64 | int index; /* sequencer client index */
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| 65 | int seq_ports; /* number of sequencer ports */
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| 66 | int fm_chorus_depth; /* FM OPL3 chorus depth */
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| 67 | int fm_reverb_depth; /* FM OPL3 reverb depth */
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| 68 |
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| 69 | int mem_size; /* memory size */
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| 70 | unsigned long port1; /* Port usually base+0 */
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| 71 | unsigned long port2; /* Port usually at base+0x400 */
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| 72 | unsigned long port3; /* Port usually at base+0x800 */
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| 73 | struct resource *res_port1;
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| 74 | struct resource *res_port2;
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| 75 | struct resource *res_port3;
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| 76 | unsigned short last_reg;/* Last register command */
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| 77 | spinlock_t reg_lock;
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| 78 |
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| 79 | int dram_checked;
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| 80 |
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| 81 | snd_card_t *card; /* The card that this belongs to */
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| 82 |
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| 83 | int chorus_mode;
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| 84 | int reverb_mode;
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| 85 | int bass_level;
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| 86 | int treble_level;
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| 87 |
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| 88 | snd_util_memhdr_t *memhdr;
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| 89 |
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| 90 | spinlock_t control_lock;
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| 91 | snd_kcontrol_t *controls[EMU8000_NUM_CONTROLS];
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| 92 | snd_pcm_t *pcm; /* pcm on emu8000 wavetable */
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| 93 |
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| 94 | } emu8000_t;
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| 95 |
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| 96 | /* sequencer device id */
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| 97 | #define SNDRV_SEQ_DEV_ID_EMU8000 "emu8000-synth"
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| 98 |
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| 99 |
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| 100 | /* exported functions */
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| 101 | int snd_emu8000_new(snd_card_t *card, int device, long port, int seq_ports, snd_seq_device_t **ret);
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| 102 | void snd_emu8000_poke(emu8000_t *emu, unsigned int port, unsigned int reg,
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| 103 | unsigned int val);
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| 104 | unsigned short snd_emu8000_peek(emu8000_t *emu, unsigned int port,
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| 105 | unsigned int reg);
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| 106 | void snd_emu8000_poke_dw(emu8000_t *emu, unsigned int port, unsigned int reg,
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| 107 | unsigned int val);
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| 108 | unsigned int snd_emu8000_peek_dw(emu8000_t *emu, unsigned int port,
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| 109 | unsigned int reg);
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| 110 | void snd_emu8000_dma_chan(emu8000_t *emu, int ch, int mode);
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| 111 |
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| 112 | void snd_emu8000_init_fm(emu8000_t *emu);
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| 113 |
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| 114 | void snd_emu8000_update_chorus_mode(emu8000_t *emu);
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| 115 | void snd_emu8000_update_reverb_mode(emu8000_t *emu);
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| 116 | void snd_emu8000_update_equalizer(emu8000_t *emu);
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| 117 | int snd_emu8000_load_chorus_fx(emu8000_t *emu, int mode, const void *buf, long len);
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| 118 | int snd_emu8000_load_reverb_fx(emu8000_t *emu, int mode, const void *buf, long len);
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| 119 |
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| 120 |
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| 121 | #endif
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