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DEFINITIONS
This source file includes following definitions.
- snd_seq_oss_dispatch
- snd_seq_oss_control
- snd_seq_oss_fill_addr
/*
* 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 <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 unsigned int reltime_t;
typedef unsigned int abstime_t;
/*
* synthesizer channel information
*/
struct seq_oss_chinfo {
int note, vel;
};
/*
* synthesizer information
*/
struct seq_oss_synthinfo {
struct snd_seq_oss_arg arg;
struct seq_oss_chinfo *ch;
struct seq_oss_synth_sysex *sysex;
int nr_voices;
int opened;
int is_midi;
int midi_mapped;
};
/*
* sequencer client information
*/
struct seq_oss_devinfo {
int index; /* application index */
int cseq; /* sequencer client number */
int port; /* sequencer port number */
int queue; /* sequencer queue number */
struct snd_seq_addr 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;
struct seq_oss_synthinfo synths[SNDRV_SEQ_OSS_MAX_SYNTH_DEVS];
int synth_opened;
/* output queue */
struct seq_oss_writeq *writeq;
/* midi input queue */
struct seq_oss_readq *readq;
/* timer */
struct seq_oss_timer *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(struct seq_oss_devinfo *dp);
int snd_seq_oss_ioctl(struct seq_oss_devinfo *dp, unsigned int cmd, unsigned long arg);
int snd_seq_oss_read(struct seq_oss_devinfo *dev, char __user *buf, int count);
int snd_seq_oss_write(struct seq_oss_devinfo *dp, const char __user *buf, int count, struct file *opt);
unsigned int snd_seq_oss_poll(struct seq_oss_devinfo *dp, struct file *file, poll_table * wait);
void snd_seq_oss_reset(struct seq_oss_devinfo *dp);
void snd_seq_oss_drain_write(struct seq_oss_devinfo *dp);
/* */
void snd_seq_oss_process_queue(struct seq_oss_devinfo *dp, abstime_t time);
/* proc interface */
void snd_seq_oss_system_info_read(struct snd_info_buffer *buf);
void snd_seq_oss_midi_info_read(struct snd_info_buffer *buf);
void snd_seq_oss_synth_info_read(struct snd_info_buffer *buf);
void snd_seq_oss_readq_info_read(struct seq_oss_readq *q, struct snd_info_buffer *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(struct seq_oss_devinfo *dp, struct snd_seq_event *ev, int atomic, int hop)
{
return snd_seq_kernel_client_dispatch(dp->cseq, ev, atomic, hop);
}
/* ioctl */
static inline int
snd_seq_oss_control(struct seq_oss_devinfo *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(struct seq_oss_devinfo *dp, struct snd_seq_event *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 */