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108 lines
3.3 KiB
108 lines
3.3 KiB
/* SPDX-License-Identifier: GPL-2.0-or-later */ |
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#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 <[email protected]> |
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*/ |
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#include <sound/emux_synth.h> |
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#include <sound/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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struct snd_emu8000 { |
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struct snd_emux *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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struct snd_card *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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struct snd_util_memhdr *memhdr; |
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spinlock_t control_lock; |
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struct snd_kcontrol *controls[EMU8000_NUM_CONTROLS]; |
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struct snd_pcm *pcm; /* pcm on emu8000 wavetable */ |
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}; |
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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(struct snd_card *card, int device, long port, int seq_ports, |
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struct snd_seq_device **ret); |
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void snd_emu8000_poke(struct snd_emu8000 *emu, unsigned int port, unsigned int reg, |
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unsigned int val); |
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unsigned short snd_emu8000_peek(struct snd_emu8000 *emu, unsigned int port, |
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unsigned int reg); |
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void snd_emu8000_poke_dw(struct snd_emu8000 *emu, unsigned int port, unsigned int reg, |
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unsigned int val); |
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unsigned int snd_emu8000_peek_dw(struct snd_emu8000 *emu, unsigned int port, |
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unsigned int reg); |
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void snd_emu8000_dma_chan(struct snd_emu8000 *emu, int ch, int mode); |
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void snd_emu8000_init_fm(struct snd_emu8000 *emu); |
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void snd_emu8000_update_chorus_mode(struct snd_emu8000 *emu); |
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void snd_emu8000_update_reverb_mode(struct snd_emu8000 *emu); |
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void snd_emu8000_update_equalizer(struct snd_emu8000 *emu); |
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int snd_emu8000_load_chorus_fx(struct snd_emu8000 *emu, int mode, const void __user *buf, long len); |
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int snd_emu8000_load_reverb_fx(struct snd_emu8000 *emu, int mode, const void __user *buf, long len); |
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#endif /* __SOUND_EMU8000_H */
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