/* * 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 */inline static intsnd_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 */inline static intsnd_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 */inline static voidsnd_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);char *filemode_str(int fmode);/* for debug */#ifdef SNDRV_SEQ_OSS_DEBUGextern 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 */