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1 | #ifndef __SOUND_SEQ_OSS_H |
2 | #define __SOUND_SEQ_OSS_H | |
3 | ||
4 | /* | |
5 | * OSS compatible sequencer driver | |
6 | * | |
7 | * Copyright (C) 1998,99 Takashi Iwai | |
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 "asequencer.h" | |
25 | #include "seq_kernel.h" | |
26 | ||
27 | /* | |
28 | * type definitions | |
29 | */ | |
30 | typedef struct snd_seq_oss_arg_t snd_seq_oss_arg_t; | |
31 | typedef struct snd_seq_oss_callback_t snd_seq_oss_callback_t; | |
32 | ||
33 | /* | |
34 | * argument structure for synthesizer operations | |
35 | */ | |
36 | struct snd_seq_oss_arg_t { | |
37 | /* given by OSS sequencer */ | |
38 | int app_index; /* application unique index */ | |
39 | int file_mode; /* file mode - see below */ | |
40 | int seq_mode; /* sequencer mode - see below */ | |
41 | ||
42 | /* following must be initialized in open callback */ | |
43 | snd_seq_addr_t addr; /* opened port address */ | |
44 | void *private_data; /* private data for lowlevel drivers */ | |
45 | ||
46 | /* note-on event passing mode: initially given by OSS seq, | |
47 | * but configurable by drivers - see below | |
48 | */ | |
49 | int event_passing; | |
50 | }; | |
51 | ||
52 | ||
53 | /* | |
54 | * synthesizer operation callbacks | |
55 | */ | |
56 | struct snd_seq_oss_callback_t { | |
57 | struct module *owner; | |
58 | int (*open)(snd_seq_oss_arg_t *p, void *closure); | |
59 | int (*close)(snd_seq_oss_arg_t *p); | |
60 | int (*ioctl)(snd_seq_oss_arg_t *p, unsigned int cmd, unsigned long arg); | |
61 | int (*load_patch)(snd_seq_oss_arg_t *p, int format, const char __user *buf, int offs, int count); | |
62 | int (*reset)(snd_seq_oss_arg_t *p); | |
63 | int (*raw_event)(snd_seq_oss_arg_t *p, unsigned char *data); | |
64 | }; | |
65 | ||
66 | /* flag: file_mode */ | |
67 | #define SNDRV_SEQ_OSS_FILE_ACMODE 3 | |
68 | #define SNDRV_SEQ_OSS_FILE_READ 1 | |
69 | #define SNDRV_SEQ_OSS_FILE_WRITE 2 | |
70 | #define SNDRV_SEQ_OSS_FILE_NONBLOCK 4 | |
71 | ||
72 | /* flag: seq_mode */ | |
73 | #define SNDRV_SEQ_OSS_MODE_SYNTH 0 | |
74 | #define SNDRV_SEQ_OSS_MODE_MUSIC 1 | |
75 | ||
76 | /* flag: event_passing */ | |
77 | #define SNDRV_SEQ_OSS_PROCESS_EVENTS 0 /* key == 255 is processed as velocity change */ | |
78 | #define SNDRV_SEQ_OSS_PASS_EVENTS 1 /* pass all events to callback */ | |
79 | #define SNDRV_SEQ_OSS_PROCESS_KEYPRESS 2 /* key >= 128 will be processed as key-pressure */ | |
80 | ||
81 | /* default control rate: fixed */ | |
82 | #define SNDRV_SEQ_OSS_CTRLRATE 100 | |
83 | ||
84 | /* default max queue length: configurable by module option */ | |
85 | #define SNDRV_SEQ_OSS_MAX_QLEN 1024 | |
86 | ||
87 | ||
88 | /* | |
89 | * data pointer to snd_seq_register_device | |
90 | */ | |
91 | typedef struct snd_seq_oss_reg { | |
92 | int type; | |
93 | int subtype; | |
94 | int nvoices; | |
95 | snd_seq_oss_callback_t oper; | |
96 | void *private_data; | |
97 | } snd_seq_oss_reg_t; | |
98 | ||
99 | /* device id */ | |
100 | #define SNDRV_SEQ_DEV_ID_OSS "seq-oss" | |
101 | ||
102 | #endif /* __SOUND_SEQ_OSS_H */ |