1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
|
/*
* OSS compatible sequencer driver
*
* Copyright (C) 1998,99 Takashi Iwai <tiwai@suse.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef __SEQ_OSS_DEVICE_H
#define __SEQ_OSS_DEVICE_H
#include <sound/driver.h>
#include <linux/time.h>
#include <linux/wait.h>
#include <linux/slab.h>
#include <linux/sched.h>
#include <sound/core.h>
#include <sound/seq_oss.h>
#include <sound/rawmidi.h>
#include <sound/seq_kernel.h>
#include <sound/info.h>
/* enable debug print */
#define SNDRV_SEQ_OSS_DEBUG
/* max. applications */
#define SNDRV_SEQ_OSS_MAX_CLIENTS 16
#define SNDRV_SEQ_OSS_MAX_SYNTH_DEVS 16
#define SNDRV_SEQ_OSS_MAX_MIDI_DEVS 32
/* version */
#define SNDRV_SEQ_OSS_MAJOR_VERSION 0
#define SNDRV_SEQ_OSS_MINOR_VERSION 1
#define SNDRV_SEQ_OSS_TINY_VERSION 8
#define SNDRV_SEQ_OSS_VERSION_STR "0.1.8"
/* device and proc interface name */
#define SNDRV_SEQ_OSS_DEVNAME "seq_oss"
#define SNDRV_SEQ_OSS_PROCNAME "oss"
/*
* type definitions
*/
typedef struct seq_oss_devinfo_t seq_oss_devinfo_t;
typedef struct seq_oss_writeq_t seq_oss_writeq_t;
typedef struct seq_oss_readq_t seq_oss_readq_t;
typedef struct seq_oss_timer_t seq_oss_timer_t;
typedef struct seq_oss_synthinfo_t seq_oss_synthinfo_t;
typedef struct seq_oss_synth_sysex_t seq_oss_synth_sysex_t;
typedef struct seq_oss_chinfo_t seq_oss_chinfo_t;
typedef unsigned int reltime_t;
typedef unsigned int abstime_t;
typedef union evrec_t evrec_t;
/*
* synthesizer channel information
*/
struct seq_oss_chinfo_t {
int note, vel;
};
/*
* synthesizer information
*/
struct seq_oss_synthinfo_t {
snd_seq_oss_arg_t arg;
seq_oss_chinfo_t *ch;
seq_oss_synth_sysex_t *sysex;
int nr_voices;
int opened;
int is_midi;
int midi_mapped;
};
/*
* sequencer client information
*/
struct seq_oss_devinfo_t {
int index; /* application index */
int cseq; /* sequencer client number */
int port; /* sequencer port number */
int queue; /* sequencer queue number */
snd_seq_addr_t addr; /* address of this device */
int seq_mode; /* sequencer mode */
int file_mode; /* file access */
/* midi device table */
int max_mididev;
/* synth device table */
int max_synthdev;
seq_oss_synthinfo_t synths[SNDRV_SEQ_OSS_MAX_SYNTH_DEVS];
int synth_opened;
/* output queue */
seq_oss_writeq_t *writeq;
/* midi input queue */
seq_oss_readq_t *readq;
/* timer */
seq_oss_timer_t *timer;
};
/*
* function prototypes
*/
/* create/delete OSS sequencer client */
int snd_seq_oss_create_client(void);
int snd_seq_oss_delete_client(void);
/* device file interface */
int snd_seq_oss_open(struct file *file, int level);
void snd_seq_oss_release(seq_oss_devinfo_t *dp);
int snd_seq_oss_ioctl(seq_oss_devinfo_t *dp, unsigned int cmd, unsigned long arg);
int snd_seq_oss_read(seq_oss_devinfo_t *dev, char __user *buf, int count);
int snd_seq_oss_write(seq_oss_devinfo_t *dp, const char __user *buf, int count, struct file *opt);
unsigned int snd_seq_oss_poll(seq_oss_devinfo_t *dp, struct file *file, poll_table * wait);
void snd_seq_oss_reset(seq_oss_devinfo_t *dp);
void snd_seq_oss_drain_write(seq_oss_devinfo_t *dp);
/* */
void snd_seq_oss_process_queue(seq_oss_devinfo_t *dp, abstime_t time);
/* proc interface */
void snd_seq_oss_system_info_read(snd_info_buffer_t *buf);
void snd_seq_oss_midi_info_read(snd_info_buffer_t *buf);
void snd_seq_oss_synth_info_read(snd_info_buffer_t *buf);
void snd_seq_oss_readq_info_read(seq_oss_readq_t *q, snd_info_buffer_t *buf);
/* file mode macros */
#define is_read_mode(mode) ((mode) & SNDRV_SEQ_OSS_FILE_READ)
#define is_write_mode(mode) ((mode) & SNDRV_SEQ_OSS_FILE_WRITE)
#define is_nonblock_mode(mode) ((mode) & SNDRV_SEQ_OSS_FILE_NONBLOCK)
/* dispatch event */
static inline int
snd_seq_oss_dispatch(seq_oss_devinfo_t *dp, snd_seq_event_t *ev, int atomic, int hop)
{
return snd_seq_kernel_client_dispatch(dp->cseq, ev, atomic, hop);
}
/* ioctl */
static inline int
snd_seq_oss_control(seq_oss_devinfo_t *dp, unsigned int type, void *arg)
{
return snd_seq_kernel_client_ctl(dp->cseq, type, arg);
}
/* fill the addresses in header */
static inline void
snd_seq_oss_fill_addr(seq_oss_devinfo_t *dp, snd_seq_event_t *ev,
int dest_client, int dest_port)
{
ev->queue = dp->queue;
ev->source = dp->addr;
ev->dest.client = dest_client;
ev->dest.port = dest_port;
}
/* misc. functions for proc interface */
char *enabled_str(int bool);
/* for debug */
#ifdef SNDRV_SEQ_OSS_DEBUG
extern int seq_oss_debug;
#define debug_printk(x) do { if (seq_oss_debug > 0) snd_printk x; } while (0)
#else
#define debug_printk(x) /**/
#endif
#endif /* __SEQ_OSS_DEVICE_H */
|
