emu8000.h (3333B)
1/* SPDX-License-Identifier: GPL-2.0-or-later */ 2#ifndef __SOUND_EMU8000_H 3#define __SOUND_EMU8000_H 4/* 5 * Defines for the emu8000 (AWE32/64) 6 * 7 * Copyright (C) 1999 Steve Ratcliffe 8 * Copyright (C) 1999-2000 Takashi Iwai <tiwai@suse.de> 9 */ 10 11#include <sound/emux_synth.h> 12#include <sound/seq_kernel.h> 13 14/* 15 * Hardware parameters. 16 */ 17#define EMU8000_MAX_DRAM (28 * 1024 * 1024) /* Max on-board mem is 28Mb ???*/ 18#define EMU8000_DRAM_OFFSET 0x200000 /* Beginning of on board ram */ 19#define EMU8000_CHANNELS 32 /* Number of hardware channels */ 20#define EMU8000_DRAM_VOICES 30 /* number of normal voices */ 21 22/* Flags to set a dma channel to read or write */ 23#define EMU8000_RAM_READ 0 24#define EMU8000_RAM_WRITE 1 25#define EMU8000_RAM_CLOSE 2 26#define EMU8000_RAM_MODE_MASK 0x03 27#define EMU8000_RAM_RIGHT 0x10 /* use 'right' DMA channel */ 28 29enum { 30 EMU8000_CONTROL_BASS = 0, 31 EMU8000_CONTROL_TREBLE, 32 EMU8000_CONTROL_CHORUS_MODE, 33 EMU8000_CONTROL_REVERB_MODE, 34 EMU8000_CONTROL_FM_CHORUS_DEPTH, 35 EMU8000_CONTROL_FM_REVERB_DEPTH, 36 EMU8000_NUM_CONTROLS, 37}; 38 39/* 40 * Structure to hold all state information for the emu8000 driver. 41 * 42 * Note 1: The chip supports 32 channels in hardware this is max_channels 43 * some of the channels may be used for other things so max_channels is 44 * the number in use for wave voices. 45 */ 46struct snd_emu8000 { 47 48 struct snd_emux *emu; 49 50 int index; /* sequencer client index */ 51 int seq_ports; /* number of sequencer ports */ 52 int fm_chorus_depth; /* FM OPL3 chorus depth */ 53 int fm_reverb_depth; /* FM OPL3 reverb depth */ 54 55 int mem_size; /* memory size */ 56 unsigned long port1; /* Port usually base+0 */ 57 unsigned long port2; /* Port usually at base+0x400 */ 58 unsigned long port3; /* Port usually at base+0x800 */ 59 unsigned short last_reg;/* Last register command */ 60 spinlock_t reg_lock; 61 62 int dram_checked; 63 64 struct snd_card *card; /* The card that this belongs to */ 65 66 int chorus_mode; 67 int reverb_mode; 68 int bass_level; 69 int treble_level; 70 71 struct snd_util_memhdr *memhdr; 72 73 spinlock_t control_lock; 74 struct snd_kcontrol *controls[EMU8000_NUM_CONTROLS]; 75 76 struct snd_pcm *pcm; /* pcm on emu8000 wavetable */ 77 78}; 79 80/* sequencer device id */ 81#define SNDRV_SEQ_DEV_ID_EMU8000 "emu8000-synth" 82 83 84/* exported functions */ 85int snd_emu8000_new(struct snd_card *card, int device, long port, int seq_ports, 86 struct snd_seq_device **ret); 87void snd_emu8000_poke(struct snd_emu8000 *emu, unsigned int port, unsigned int reg, 88 unsigned int val); 89unsigned short snd_emu8000_peek(struct snd_emu8000 *emu, unsigned int port, 90 unsigned int reg); 91void snd_emu8000_poke_dw(struct snd_emu8000 *emu, unsigned int port, unsigned int reg, 92 unsigned int val); 93unsigned int snd_emu8000_peek_dw(struct snd_emu8000 *emu, unsigned int port, 94 unsigned int reg); 95void snd_emu8000_dma_chan(struct snd_emu8000 *emu, int ch, int mode); 96 97void snd_emu8000_init_fm(struct snd_emu8000 *emu); 98 99void snd_emu8000_update_chorus_mode(struct snd_emu8000 *emu); 100void snd_emu8000_update_reverb_mode(struct snd_emu8000 *emu); 101void snd_emu8000_update_equalizer(struct snd_emu8000 *emu); 102int snd_emu8000_load_chorus_fx(struct snd_emu8000 *emu, int mode, const void __user *buf, long len); 103int snd_emu8000_load_reverb_fx(struct snd_emu8000 *emu, int mode, const void __user *buf, long len); 104 105#endif /* __SOUND_EMU8000_H */