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 
42 enum {
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  */
59 struct 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 */
101 int snd_emu8000_new(struct snd_card *card, int device, long port, int seq_ports,
102 		    struct snd_seq_device **ret);
103 void snd_emu8000_poke(struct snd_emu8000 *emu, unsigned int port, unsigned int reg,
104 		      unsigned int val);
105 unsigned short snd_emu8000_peek(struct snd_emu8000 *emu, unsigned int port,
106 				unsigned int reg);
107 void snd_emu8000_poke_dw(struct snd_emu8000 *emu, unsigned int port, unsigned int reg,
108 			 unsigned int val);
109 unsigned int snd_emu8000_peek_dw(struct snd_emu8000 *emu, unsigned int port,
110 				 unsigned int reg);
111 void snd_emu8000_dma_chan(struct snd_emu8000 *emu, int ch, int mode);
112 
113 void snd_emu8000_init_fm(struct snd_emu8000 *emu);
114 
115 void snd_emu8000_update_chorus_mode(struct snd_emu8000 *emu);
116 void snd_emu8000_update_reverb_mode(struct snd_emu8000 *emu);
117 void snd_emu8000_update_equalizer(struct snd_emu8000 *emu);
118 int snd_emu8000_load_chorus_fx(struct snd_emu8000 *emu, int mode, const void __user *buf, long len);
119 int snd_emu8000_load_reverb_fx(struct snd_emu8000 *emu, int mode, const void __user *buf, long len);
120 
121 #endif /* __SOUND_EMU8000_H */
122