[linux-block.git] / sound / core / seq / oss / seq_oss_device.h

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * OSS compatible sequencer driver
 *
 * Copyright (C) 1998,99 Takashi Iwai <tiwai@suse.de>
 */

#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/signal.h>
#include <sound/core.h>
#include <sound/seq_oss.h>
#include <sound/rawmidi.h>
#include <sound/seq_kernel.h>
#include <sound/info.h>
#include "../seq_clientmgr.h"

/* 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_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;
	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);
__poll_t 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);

/* 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 for writeq */
static inline int
snd_seq_oss_control(struct seq_oss_devinfo *dp, unsigned int type, void *arg)
{
	int err;

	snd_seq_client_ioctl_lock(dp->cseq);
	err = snd_seq_kernel_client_ctl(dp->cseq, type, arg);
	snd_seq_client_ioctl_unlock(dp->cseq);
	return err;
}

/* 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;
}

#endif /* __SEQ_OSS_DEVICE_H */
Commit	Line	Data
1a59d1b8	1	/* SPDX-License-Identifier: GPL-2.0-or-later */
1da177e4 LT	2	/*
	3	* OSS compatible sequencer driver
	4	*
	5	* Copyright (C) 1998,99 Takashi Iwai <tiwai@suse.de>
1da177e4 LT	6	*/
	7
	8	#ifndef __SEQ_OSS_DEVICE_H
	9	#define __SEQ_OSS_DEVICE_H
	10
1da177e4 LT	11	#include <linux/time.h>
	12	#include <linux/wait.h>
	13	#include <linux/slab.h>
174cd4b1	14	#include <linux/sched/signal.h>
1da177e4 LT	15	#include <sound/core.h>
	16	#include <sound/seq_oss.h>
	17	#include <sound/rawmidi.h>
	18	#include <sound/seq_kernel.h>
	19	#include <sound/info.h>
6b580f52	20	#include "../seq_clientmgr.h"
1da177e4	21
1da177e4 LT	22	/* max. applications */
	23	#define SNDRV_SEQ_OSS_MAX_CLIENTS 16
	24	#define SNDRV_SEQ_OSS_MAX_SYNTH_DEVS 16
	25	#define SNDRV_SEQ_OSS_MAX_MIDI_DEVS 32
	26
	27	/* version */
	28	#define SNDRV_SEQ_OSS_MAJOR_VERSION 0
	29	#define SNDRV_SEQ_OSS_MINOR_VERSION 1
	30	#define SNDRV_SEQ_OSS_TINY_VERSION 8
	31	#define SNDRV_SEQ_OSS_VERSION_STR "0.1.8"
	32
	33	/* device and proc interface name */
1da177e4 LT	34	#define SNDRV_SEQ_OSS_PROCNAME "oss"
	35
	36
	37	/*
	38	* type definitions
	39	*/
	40
1da177e4 LT	41	typedef unsigned int reltime_t;
1da177e4 LT	42	typedef unsigned int abstime_t;
1da177e4 LT	43
	44
	45	/*
	46	* synthesizer channel information
	47	*/
080dece3	48	struct seq_oss_chinfo {
1da177e4 LT	49	int note, vel;
	50	};
	51
	52	/*
	53	* synthesizer information
	54	*/
080dece3 TI	55	struct seq_oss_synthinfo {
	56	struct snd_seq_oss_arg arg;
	57	struct seq_oss_chinfo *ch;
1da177e4 LT	58	int nr_voices;
	59	int opened;
	60	int is_midi;
	61	int midi_mapped;
	62	};
	63
	64
	65	/*
	66	* sequencer client information
	67	*/
	68
080dece3	69	struct seq_oss_devinfo {
1da177e4 LT	70
	71	int index; /* application index */
	72	int cseq; /* sequencer client number */
	73	int port; /* sequencer port number */
	74	int queue; /* sequencer queue number */
	75
080dece3	76	struct snd_seq_addr addr; /* address of this device */
1da177e4 LT	77
	78	int seq_mode; /* sequencer mode */
	79	int file_mode; /* file access */
	80
	81	/* midi device table */
	82	int max_mididev;
	83
	84	/* synth device table */
	85	int max_synthdev;
080dece3	86	struct seq_oss_synthinfo synths[SNDRV_SEQ_OSS_MAX_SYNTH_DEVS];
1da177e4 LT	87	int synth_opened;
	88
	89	/* output queue */
080dece3	90	struct seq_oss_writeq *writeq;
1da177e4 LT	91
1da177e4 LT	92	/* midi input queue */
080dece3	93	struct seq_oss_readq *readq;
1da177e4 LT	94
1da177e4 LT	95	/* timer */
080dece3	96	struct seq_oss_timer *timer;
1da177e4 LT	97	};
	98
	99
	100	/*
	101	* function prototypes
	102	*/
	103
	104	/* create/delete OSS sequencer client */
	105	int snd_seq_oss_create_client(void);
	106	int snd_seq_oss_delete_client(void);
	107
	108	/* device file interface */
	109	int snd_seq_oss_open(struct file *file, int level);
080dece3 TI	110	void snd_seq_oss_release(struct seq_oss_devinfo *dp);
	111	int snd_seq_oss_ioctl(struct seq_oss_devinfo *dp, unsigned int cmd, unsigned long arg);
	112	int snd_seq_oss_read(struct seq_oss_devinfo dev, char __user buf, int count);
	113	int snd_seq_oss_write(struct seq_oss_devinfo dp, const char __user buf, int count, struct file *opt);
680ef72a	114	__poll_t snd_seq_oss_poll(struct seq_oss_devinfo dp, struct file file, poll_table * wait);
1da177e4	115
080dece3	116	void snd_seq_oss_reset(struct seq_oss_devinfo *dp);
1da177e4	117
1da177e4	118	/* proc interface */
080dece3 TI	119	void snd_seq_oss_system_info_read(struct snd_info_buffer *buf);
	120	void snd_seq_oss_midi_info_read(struct snd_info_buffer *buf);
	121	void snd_seq_oss_synth_info_read(struct snd_info_buffer *buf);
	122	void snd_seq_oss_readq_info_read(struct seq_oss_readq q, struct snd_info_buffer buf);
1da177e4 LT	123
	124	/* file mode macros */
	125	#define is_read_mode(mode) ((mode) & SNDRV_SEQ_OSS_FILE_READ)
	126	#define is_write_mode(mode) ((mode) & SNDRV_SEQ_OSS_FILE_WRITE)
	127	#define is_nonblock_mode(mode) ((mode) & SNDRV_SEQ_OSS_FILE_NONBLOCK)
	128
	129	/* dispatch event */
77933d72	130	static inline int
080dece3	131	snd_seq_oss_dispatch(struct seq_oss_devinfo dp, struct snd_seq_event ev, int atomic, int hop)
1da177e4 LT	132	{
	133	return snd_seq_kernel_client_dispatch(dp->cseq, ev, atomic, hop);
	134	}
	135
6b580f52	136	/* ioctl for writeq */
77933d72	137	static inline int
080dece3	138	snd_seq_oss_control(struct seq_oss_devinfo dp, unsigned int type, void arg)
1da177e4	139	{
6b580f52 TI	140	int err;
	141
	142	snd_seq_client_ioctl_lock(dp->cseq);
	143	err = snd_seq_kernel_client_ctl(dp->cseq, type, arg);
	144	snd_seq_client_ioctl_unlock(dp->cseq);
	145	return err;
1da177e4 LT	146	}
	147
	148	/* fill the addresses in header */
77933d72	149	static inline void
080dece3	150	snd_seq_oss_fill_addr(struct seq_oss_devinfo dp, struct snd_seq_event ev,
1da177e4 LT	151	int dest_client, int dest_port)
	152	{
	153	ev->queue = dp->queue;
	154	ev->source = dp->addr;
	155	ev->dest.client = dest_client;
	156	ev->dest.port = dest_port;
	157	}
	158
1da177e4	159	#endif /* __SEQ_OSS_DEVICE_H */