1 #ifndef __SOUND_SEQ_OSS_H
2 #define __SOUND_SEQ_OSS_H
5 * OSS compatible sequencer driver
7 * Copyright (C) 1998,99 Takashi Iwai
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.
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.
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
24 #include "asequencer.h"
25 #include "seq_kernel.h"
28 * argument structure for synthesizer operations
30 struct snd_seq_oss_arg {
31 /* given by OSS sequencer */
32 int app_index; /* application unique index */
33 int file_mode; /* file mode - see below */
34 int seq_mode; /* sequencer mode - see below */
36 /* following must be initialized in open callback */
37 struct snd_seq_addr addr; /* opened port address */
38 void *private_data; /* private data for lowlevel drivers */
40 /* note-on event passing mode: initially given by OSS seq,
41 * but configurable by drivers - see below
48 * synthesizer operation callbacks
50 struct snd_seq_oss_callback {
52 int (*open)(struct snd_seq_oss_arg *p, void *closure);
53 int (*close)(struct snd_seq_oss_arg *p);
54 int (*ioctl)(struct snd_seq_oss_arg *p, unsigned int cmd, unsigned long arg);
55 int (*load_patch)(struct snd_seq_oss_arg *p, int format, const char __user *buf, int offs, int count);
56 int (*reset)(struct snd_seq_oss_arg *p);
57 int (*raw_event)(struct snd_seq_oss_arg *p, unsigned char *data);
61 #define SNDRV_SEQ_OSS_FILE_ACMODE 3
62 #define SNDRV_SEQ_OSS_FILE_READ 1
63 #define SNDRV_SEQ_OSS_FILE_WRITE 2
64 #define SNDRV_SEQ_OSS_FILE_NONBLOCK 4
67 #define SNDRV_SEQ_OSS_MODE_SYNTH 0
68 #define SNDRV_SEQ_OSS_MODE_MUSIC 1
70 /* flag: event_passing */
71 #define SNDRV_SEQ_OSS_PROCESS_EVENTS 0 /* key == 255 is processed as velocity change */
72 #define SNDRV_SEQ_OSS_PASS_EVENTS 1 /* pass all events to callback */
73 #define SNDRV_SEQ_OSS_PROCESS_KEYPRESS 2 /* key >= 128 will be processed as key-pressure */
75 /* default control rate: fixed */
76 #define SNDRV_SEQ_OSS_CTRLRATE 100
78 /* default max queue length: configurable by module option */
79 #define SNDRV_SEQ_OSS_MAX_QLEN 1024
83 * data pointer to snd_seq_register_device
85 struct snd_seq_oss_reg {
89 struct snd_seq_oss_callback oper;
94 #define SNDRV_SEQ_DEV_ID_OSS "seq-oss"
96 #endif /* __SOUND_SEQ_OSS_H */