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