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 29 enum { 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 */ 46 struct 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 struct resource *res_port1; 60 struct resource *res_port2; 61 struct resource *res_port3; 62 unsigned short last_reg;/* Last register command */ 63 spinlock_t reg_lock; 64 65 int dram_checked; 66 67 struct snd_card *card; /* The card that this belongs to */ 68 69 int chorus_mode; 70 int reverb_mode; 71 int bass_level; 72 int treble_level; 73 74 struct snd_util_memhdr *memhdr; 75 76 spinlock_t control_lock; 77 struct snd_kcontrol *controls[EMU8000_NUM_CONTROLS]; 78 79 struct snd_pcm *pcm; /* pcm on emu8000 wavetable */ 80 81 }; 82 83 /* sequencer device id */ 84 #define SNDRV_SEQ_DEV_ID_EMU8000 "emu8000-synth" 85 86 87 /* exported functions */ 88 int snd_emu8000_new(struct snd_card *card, int device, long port, int seq_ports, 89 struct snd_seq_device **ret); 90 void snd_emu8000_poke(struct snd_emu8000 *emu, unsigned int port, unsigned int reg, 91 unsigned int val); 92 unsigned short snd_emu8000_peek(struct snd_emu8000 *emu, unsigned int port, 93 unsigned int reg); 94 void snd_emu8000_poke_dw(struct snd_emu8000 *emu, unsigned int port, unsigned int reg, 95 unsigned int val); 96 unsigned int snd_emu8000_peek_dw(struct snd_emu8000 *emu, unsigned int port, 97 unsigned int reg); 98 void snd_emu8000_dma_chan(struct snd_emu8000 *emu, int ch, int mode); 99 100 void snd_emu8000_init_fm(struct snd_emu8000 *emu); 101 102 void snd_emu8000_update_chorus_mode(struct snd_emu8000 *emu); 103 void snd_emu8000_update_reverb_mode(struct snd_emu8000 *emu); 104 void snd_emu8000_update_equalizer(struct snd_emu8000 *emu); 105 int snd_emu8000_load_chorus_fx(struct snd_emu8000 *emu, int mode, const void __user *buf, long len); 106 int snd_emu8000_load_reverb_fx(struct snd_emu8000 *emu, int mode, const void __user *buf, long len); 107 108 #endif /* __SOUND_EMU8000_H */ 109