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1da177e4 LT |
1 | /* |
2 | * Advanced Linux Sound Architecture | |
3 | * | |
4 | * Simple (MOD player) Instrument Format | |
5 | * Copyright (c) 1994-99 by Jaroslav Kysela <perex@suse.cz> | |
6 | * | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
21 | * | |
22 | */ | |
23 | ||
24 | #ifndef __SOUND_AINSTR_SIMPLE_H | |
25 | #define __SOUND_AINSTR_SIMPLE_H | |
26 | ||
27 | #ifndef __KERNEL__ | |
28 | #include <asm/types.h> | |
29 | #include <asm/byteorder.h> | |
30 | #endif | |
31 | ||
32 | /* | |
33 | * share types (share ID 1) | |
34 | */ | |
35 | ||
36 | #define SIMPLE_SHARE_FILE 0 | |
37 | ||
38 | /* | |
39 | * wave formats | |
40 | */ | |
41 | ||
42 | #define SIMPLE_WAVE_16BIT 0x0001 /* 16-bit wave */ | |
43 | #define SIMPLE_WAVE_UNSIGNED 0x0002 /* unsigned wave */ | |
44 | #define SIMPLE_WAVE_INVERT 0x0002 /* same as unsigned wave */ | |
45 | #define SIMPLE_WAVE_BACKWARD 0x0004 /* backward mode (maybe used for reverb or ping-ping loop) */ | |
46 | #define SIMPLE_WAVE_LOOP 0x0008 /* loop mode */ | |
47 | #define SIMPLE_WAVE_BIDIR 0x0010 /* bidirectional mode */ | |
48 | #define SIMPLE_WAVE_STEREO 0x0100 /* stereo wave */ | |
49 | #define SIMPLE_WAVE_ULAW 0x0200 /* uLaw compression mode */ | |
50 | ||
51 | /* | |
52 | * instrument effects | |
53 | */ | |
54 | ||
55 | #define SIMPLE_EFFECT_NONE 0 | |
56 | #define SIMPLE_EFFECT_REVERB 1 | |
57 | #define SIMPLE_EFFECT_CHORUS 2 | |
58 | #define SIMPLE_EFFECT_ECHO 3 | |
59 | ||
60 | /* | |
61 | * instrument info | |
62 | */ | |
63 | ||
19ac31e8 | 64 | struct simple_instrument_info { |
1da177e4 LT |
65 | unsigned int format; /* supported format bits */ |
66 | unsigned int effects; /* supported effects (1 << SIMPLE_EFFECT_*) */ | |
67 | unsigned int max8_len; /* maximum 8-bit wave length */ | |
68 | unsigned int max16_len; /* maximum 16-bit wave length */ | |
19ac31e8 | 69 | }; |
1da177e4 LT |
70 | |
71 | /* | |
72 | * Instrument | |
73 | */ | |
74 | ||
19ac31e8 | 75 | struct simple_instrument { |
1da177e4 LT |
76 | unsigned int share_id[4]; /* share id - zero = no sharing */ |
77 | unsigned int format; /* wave format */ | |
78 | ||
79 | struct { | |
80 | unsigned int number; /* some other ID for this instrument */ | |
81 | unsigned int memory; /* begin of waveform in onboard memory */ | |
82 | unsigned char *ptr; /* pointer to waveform in system memory */ | |
83 | } address; | |
84 | ||
85 | unsigned int size; /* size of waveform in samples */ | |
86 | unsigned int start; /* start offset in samples * 16 (lowest 4 bits - fraction) */ | |
87 | unsigned int loop_start; /* loop start offset in samples * 16 (lowest 4 bits - fraction) */ | |
88 | unsigned int loop_end; /* loop end offset in samples * 16 (lowest 4 bits - fraction) */ | |
89 | unsigned short loop_repeat; /* loop repeat - 0 = forever */ | |
90 | ||
91 | unsigned char effect1; /* effect 1 */ | |
92 | unsigned char effect1_depth; /* 0-127 */ | |
93 | unsigned char effect2; /* effect 2 */ | |
94 | unsigned char effect2_depth; /* 0-127 */ | |
19ac31e8 | 95 | }; |
1da177e4 LT |
96 | |
97 | /* | |
98 | * | |
99 | * Kernel <-> user space | |
100 | * Hardware (CPU) independent section | |
101 | * | |
102 | * * = zero or more | |
103 | * + = one or more | |
104 | * | |
105 | * simple_xinstrument SIMPLE_STRU_INSTR | |
106 | * | |
107 | */ | |
108 | ||
109 | #define SIMPLE_STRU_INSTR __cpu_to_be32(('I'<<24)|('N'<<16)|('S'<<8)|'T') | |
110 | ||
111 | /* | |
112 | * Instrument | |
113 | */ | |
114 | ||
19ac31e8 | 115 | struct simple_xinstrument { |
1da177e4 LT |
116 | __u32 stype; |
117 | ||
118 | __u32 share_id[4]; /* share id - zero = no sharing */ | |
119 | __u32 format; /* wave format */ | |
120 | ||
121 | __u32 size; /* size of waveform in samples */ | |
122 | __u32 start; /* start offset in samples * 16 (lowest 4 bits - fraction) */ | |
123 | __u32 loop_start; /* bits loop start offset in samples * 16 (lowest 4 bits - fraction) */ | |
124 | __u32 loop_end; /* loop start offset in samples * 16 (lowest 4 bits - fraction) */ | |
125 | __u16 loop_repeat; /* loop repeat - 0 = forever */ | |
126 | ||
127 | __u8 effect1; /* effect 1 */ | |
128 | __u8 effect1_depth; /* 0-127 */ | |
129 | __u8 effect2; /* effect 2 */ | |
130 | __u8 effect2_depth; /* 0-127 */ | |
19ac31e8 | 131 | }; |
1da177e4 LT |
132 | |
133 | #ifdef __KERNEL__ | |
134 | ||
135 | #include "seq_instr.h" | |
136 | ||
19ac31e8 | 137 | struct snd_simple_ops { |
1da177e4 | 138 | void *private_data; |
19ac31e8 TI |
139 | int (*info)(void *private_data, struct simple_instrument_info *info); |
140 | int (*put_sample)(void *private_data, struct simple_instrument *instr, | |
1da177e4 | 141 | char __user *data, long len, int atomic); |
19ac31e8 | 142 | int (*get_sample)(void *private_data, struct simple_instrument *instr, |
1da177e4 | 143 | char __user *data, long len, int atomic); |
19ac31e8 | 144 | int (*remove_sample)(void *private_data, struct simple_instrument *instr, |
1da177e4 | 145 | int atomic); |
19ac31e8 TI |
146 | void (*notify)(void *private_data, struct snd_seq_kinstr *instr, int what); |
147 | struct snd_seq_kinstr_ops kops; | |
148 | }; | |
1da177e4 | 149 | |
19ac31e8 | 150 | int snd_seq_simple_init(struct snd_simple_ops *ops, |
1da177e4 | 151 | void *private_data, |
19ac31e8 | 152 | struct snd_seq_kinstr_ops *next); |
1da177e4 LT |
153 | |
154 | #endif | |
155 | ||
19ac31e8 TI |
156 | /* typedefs for compatibility to user-space */ |
157 | typedef struct simple_xinstrument simple_xinstrument_t; | |
158 | ||
1da177e4 | 159 | #endif /* __SOUND_AINSTR_SIMPLE_H */ |