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1/* SPDX-License-Identifier: GPL-2.0-or-later */2#ifndef __SOUND_EMU8000_H3#define __SOUND_EMU8000_H4/*5 * Defines for the emu8000 (AWE32/64)6 *7 * Copyright (C) 1999 Steve Ratcliffe8 * 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 024#define EMU8000_RAM_WRITE 125#define EMU8000_RAM_CLOSE 226#define EMU8000_RAM_MODE_MASK 0x0327#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_channels43 * some of the channels may be used for other things so max_channels is44 * 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 */106