1#ifndef __SOUND_EMU8000_H
2#define __SOUND_EMU8000_H
3/*
4 *  Defines for the emu8000 (AWE32/64)
5 *
6 *  Copyright (C) 1999 Steve Ratcliffe
7 *  Copyright (C) 1999-2000 Takashi Iwai <tiwai@suse.de>
8 *
9 *   This program is free software; you can redistribute it and/or modify
10 *   it under the terms of the GNU General Public License as published by
11 *   the Free Software Foundation; either version 2 of the License, or
12 *   (at your option) any later version.
13 *
14 *   This program is distributed in the hope that it will be useful,
15 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
16 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17 *   GNU General Public License for more details.
18 *
19 *   You should have received a copy of the GNU General Public License
20 *   along with this program; if not, write to the Free Software
21 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
22 */
23
24#include "emux_synth.h"
25#include "seq_kernel.h"
26
27/*
28 * Hardware parameters.
29 */
30#define EMU8000_MAX_DRAM (28 * 1024 * 1024) /* Max on-board mem is 28Mb ???*/
31#define EMU8000_DRAM_OFFSET 0x200000	/* Beginning of on board ram */
32#define EMU8000_CHANNELS   32	/* Number of hardware channels */
33#define EMU8000_DRAM_VOICES	30	/* number of normal voices */
34
35/* Flags to set a dma channel to read or write */
36#define EMU8000_RAM_READ   0
37#define EMU8000_RAM_WRITE  1
38#define EMU8000_RAM_CLOSE  2
39#define EMU8000_RAM_MODE_MASK	0x03
40#define EMU8000_RAM_RIGHT	0x10	/* use 'right' DMA channel */
41
42enum {
43	EMU8000_CONTROL_BASS = 0,
44	EMU8000_CONTROL_TREBLE,
45	EMU8000_CONTROL_CHORUS_MODE,
46	EMU8000_CONTROL_REVERB_MODE,
47	EMU8000_CONTROL_FM_CHORUS_DEPTH,
48	EMU8000_CONTROL_FM_REVERB_DEPTH,
49	EMU8000_NUM_CONTROLS,
50};
51
52/*
53 * Structure to hold all state information for the emu8000 driver.
54 *
55 * Note 1: The chip supports 32 channels in hardware this is max_channels
56 * some of the channels may be used for other things so max_channels is
57 * the number in use for wave voices.
58 */
59struct snd_emu8000 {
60
61	struct snd_emux *emu;
62
63	int index;		/* sequencer client index */
64	int seq_ports;		/* number of sequencer ports */
65	int fm_chorus_depth;	/* FM OPL3 chorus depth */
66	int fm_reverb_depth;	/* FM OPL3 reverb depth */
67
68	int mem_size;		/* memory size */
69	unsigned long port1;	/* Port usually base+0 */
70	unsigned long port2;	/* Port usually at base+0x400 */
71	unsigned long port3;	/* Port usually at base+0x800 */
72	struct resource *res_port1;
73	struct resource *res_port2;
74	struct resource *res_port3;
75	unsigned short last_reg;/* Last register command */
76	spinlock_t reg_lock;
77
78	int dram_checked;
79
80	struct snd_card *card;		/* The card that this belongs to */
81
82	int chorus_mode;
83	int reverb_mode;
84	int bass_level;
85	int treble_level;
86
87	struct snd_util_memhdr *memhdr;
88
89	spinlock_t control_lock;
90	struct snd_kcontrol *controls[EMU8000_NUM_CONTROLS];
91
92	struct snd_pcm *pcm; /* pcm on emu8000 wavetable */
93
94};
95
96/* sequencer device id */
97#define SNDRV_SEQ_DEV_ID_EMU8000	"emu8000-synth"
98
99
100/* exported functions */
101int snd_emu8000_new(struct snd_card *card, int device, long port, int seq_ports,
102		    struct snd_seq_device **ret);
103void snd_emu8000_poke(struct snd_emu8000 *emu, unsigned int port, unsigned int reg,
104		      unsigned int val);
105unsigned short snd_emu8000_peek(struct snd_emu8000 *emu, unsigned int port,
106				unsigned int reg);
107void snd_emu8000_poke_dw(struct snd_emu8000 *emu, unsigned int port, unsigned int reg,
108			 unsigned int val);
109unsigned int snd_emu8000_peek_dw(struct snd_emu8000 *emu, unsigned int port,
110				 unsigned int reg);
111void snd_emu8000_dma_chan(struct snd_emu8000 *emu, int ch, int mode);
112
113void snd_emu8000_init_fm(struct snd_emu8000 *emu);
114
115void snd_emu8000_update_chorus_mode(struct snd_emu8000 *emu);
116void snd_emu8000_update_reverb_mode(struct snd_emu8000 *emu);
117void snd_emu8000_update_equalizer(struct snd_emu8000 *emu);
118int snd_emu8000_load_chorus_fx(struct snd_emu8000 *emu, int mode, const void __user *buf, long len);
119int snd_emu8000_load_reverb_fx(struct snd_emu8000 *emu, int mode, const void __user *buf, long len);
120
121#endif /* __SOUND_EMU8000_H */
122