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- /* SPDX-License-Identifier: GPL-2.0-or-later */
- #ifndef __SOUND_EMU8000_H
- #define __SOUND_EMU8000_H
- /*
- * Defines for the emu8000 (AWE32/64)
- *
- * Copyright (C) 1999 Steve Ratcliffe
- * Copyright (C) 1999-2000 Takashi Iwai <[email protected]>
- */
- #include <sound/emux_synth.h>
- #include <sound/seq_kernel.h>
- /*
- * Hardware parameters.
- */
- #define EMU8000_MAX_DRAM (28 * 1024 * 1024) /* Max on-board mem is 28Mb ???*/
- #define EMU8000_DRAM_OFFSET 0x200000 /* Beginning of on board ram */
- #define EMU8000_CHANNELS 32 /* Number of hardware channels */
- #define EMU8000_DRAM_VOICES 30 /* number of normal voices */
- /* Flags to set a dma channel to read or write */
- #define EMU8000_RAM_READ 0
- #define EMU8000_RAM_WRITE 1
- #define EMU8000_RAM_CLOSE 2
- #define EMU8000_RAM_MODE_MASK 0x03
- #define EMU8000_RAM_RIGHT 0x10 /* use 'right' DMA channel */
- enum {
- EMU8000_CONTROL_BASS = 0,
- EMU8000_CONTROL_TREBLE,
- EMU8000_CONTROL_CHORUS_MODE,
- EMU8000_CONTROL_REVERB_MODE,
- EMU8000_CONTROL_FM_CHORUS_DEPTH,
- EMU8000_CONTROL_FM_REVERB_DEPTH,
- EMU8000_NUM_CONTROLS,
- };
- /*
- * Structure to hold all state information for the emu8000 driver.
- *
- * Note 1: The chip supports 32 channels in hardware this is max_channels
- * some of the channels may be used for other things so max_channels is
- * the number in use for wave voices.
- */
- struct snd_emu8000 {
- struct snd_emux *emu;
- int index; /* sequencer client index */
- int seq_ports; /* number of sequencer ports */
- int fm_chorus_depth; /* FM OPL3 chorus depth */
- int fm_reverb_depth; /* FM OPL3 reverb depth */
- int mem_size; /* memory size */
- unsigned long port1; /* Port usually base+0 */
- unsigned long port2; /* Port usually at base+0x400 */
- unsigned long port3; /* Port usually at base+0x800 */
- unsigned short last_reg;/* Last register command */
- spinlock_t reg_lock;
- int dram_checked;
- struct snd_card *card; /* The card that this belongs to */
- int chorus_mode;
- int reverb_mode;
- int bass_level;
- int treble_level;
- struct snd_util_memhdr *memhdr;
- spinlock_t control_lock;
- struct snd_kcontrol *controls[EMU8000_NUM_CONTROLS];
- struct snd_pcm *pcm; /* pcm on emu8000 wavetable */
- };
- /* sequencer device id */
- #define SNDRV_SEQ_DEV_ID_EMU8000 "emu8000-synth"
- /* exported functions */
- int snd_emu8000_new(struct snd_card *card, int device, long port, int seq_ports,
- struct snd_seq_device **ret);
- void snd_emu8000_poke(struct snd_emu8000 *emu, unsigned int port, unsigned int reg,
- unsigned int val);
- unsigned short snd_emu8000_peek(struct snd_emu8000 *emu, unsigned int port,
- unsigned int reg);
- void snd_emu8000_poke_dw(struct snd_emu8000 *emu, unsigned int port, unsigned int reg,
- unsigned int val);
- unsigned int snd_emu8000_peek_dw(struct snd_emu8000 *emu, unsigned int port,
- unsigned int reg);
- void snd_emu8000_dma_chan(struct snd_emu8000 *emu, int ch, int mode);
- void snd_emu8000_init_fm(struct snd_emu8000 *emu);
- void snd_emu8000_update_chorus_mode(struct snd_emu8000 *emu);
- void snd_emu8000_update_reverb_mode(struct snd_emu8000 *emu);
- void snd_emu8000_update_equalizer(struct snd_emu8000 *emu);
- int snd_emu8000_load_chorus_fx(struct snd_emu8000 *emu, int mode, const void __user *buf, long len);
- int snd_emu8000_load_reverb_fx(struct snd_emu8000 *emu, int mode, const void __user *buf, long len);
- #endif /* __SOUND_EMU8000_H */
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