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 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 */
85 int snd_emu8000_new(struct snd_card *card, int device, long port, int seq_ports,
86 struct snd_seq_device **ret);
87 void snd_emu8000_poke(struct snd_emu8000 *emu, unsigned int port, unsigned int reg,
88 unsigned int val);
89 unsigned short snd_emu8000_peek(struct snd_emu8000 *emu, unsigned int port,
90 unsigned int reg);
91 void snd_emu8000_poke_dw(struct snd_emu8000 *emu, unsigned int port, unsigned int reg,
92 unsigned int val);
93 unsigned int snd_emu8000_peek_dw(struct snd_emu8000 *emu, unsigned int port,
94 unsigned int reg);
95 void snd_emu8000_dma_chan(struct snd_emu8000 *emu, int ch, int mode);
96
97 void snd_emu8000_init_fm(struct snd_emu8000 *emu);
98
99 void snd_emu8000_update_chorus_mode(struct snd_emu8000 *emu);
100 void snd_emu8000_update_reverb_mode(struct snd_emu8000 *emu);
101 void snd_emu8000_update_equalizer(struct snd_emu8000 *emu);
102 int snd_emu8000_load_chorus_fx(struct snd_emu8000 *emu, int mode, const void __user *buf, long len);
103 int snd_emu8000_load_reverb_fx(struct snd_emu8000 *emu, int mode, const void __user *buf, long len);
104
105 #endif /* __SOUND_EMU8000_H */
106
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