[linux.git] / include / sound / seq_oss.h

/* SPDX-License-Identifier: GPL-2.0-or-later */
#ifndef __SOUND_SEQ_OSS_H
#define __SOUND_SEQ_OSS_H

/*
 * OSS compatible sequencer driver
 *
 * Copyright (C) 1998,99 Takashi Iwai
 */

#include <sound/asequencer.h>
#include <sound/seq_kernel.h>

/*
 * argument structure for synthesizer operations
 */
struct snd_seq_oss_arg {
	/* given by OSS sequencer */
	int app_index;	/* application unique index */
	int file_mode;	/* file mode - see below */
	int seq_mode;	/* sequencer mode - see below */

	/* following must be initialized in open callback */
	struct snd_seq_addr addr;	/* opened port address */
	void *private_data;	/* private data for lowlevel drivers */

	/* note-on event passing mode: initially given by OSS seq,
	 * but configurable by drivers - see below
	 */
	int event_passing;
};


/*
 * synthesizer operation callbacks
 */
struct snd_seq_oss_callback {
	struct module *owner;
	int (*open)(struct snd_seq_oss_arg *p, void *closure);
	int (*close)(struct snd_seq_oss_arg *p);
	int (*ioctl)(struct snd_seq_oss_arg *p, unsigned int cmd, unsigned long arg);
	int (*load_patch)(struct snd_seq_oss_arg *p, int format, const char __user *buf, int offs, int count);
	int (*reset)(struct snd_seq_oss_arg *p);
	int (*raw_event)(struct snd_seq_oss_arg *p, unsigned char *data);
};

/* flag: file_mode */
#define SNDRV_SEQ_OSS_FILE_ACMODE		3
#define SNDRV_SEQ_OSS_FILE_READ		1
#define SNDRV_SEQ_OSS_FILE_WRITE		2
#define SNDRV_SEQ_OSS_FILE_NONBLOCK	4

/* flag: seq_mode */
#define SNDRV_SEQ_OSS_MODE_SYNTH		0
#define SNDRV_SEQ_OSS_MODE_MUSIC		1

/* flag: event_passing */
#define SNDRV_SEQ_OSS_PROCESS_EVENTS	0	/* key == 255 is processed as velocity change */
#define SNDRV_SEQ_OSS_PASS_EVENTS		1	/* pass all events to callback */
#define SNDRV_SEQ_OSS_PROCESS_KEYPRESS	2	/* key >= 128 will be processed as key-pressure */

/* default control rate: fixed */
#define SNDRV_SEQ_OSS_CTRLRATE		100

/* default max queue length: configurable by module option */
#define SNDRV_SEQ_OSS_MAX_QLEN		1024


/*
 * data pointer to snd_seq_register_device
 */
struct snd_seq_oss_reg {
	int type;
	int subtype;
	int nvoices;
	struct snd_seq_oss_callback oper;
	void *private_data;
};

/* device id */
#define SNDRV_SEQ_DEV_ID_OSS		"seq-oss"

#endif /* __SOUND_SEQ_OSS_H */
Commit	Line	Data
1a59d1b8	1	/* SPDX-License-Identifier: GPL-2.0-or-later */
1da177e4 LT	2	#ifndef __SOUND_SEQ_OSS_H
	3	#define __SOUND_SEQ_OSS_H
	4
	5	/*
	6	* OSS compatible sequencer driver
	7	*
	8	* Copyright (C) 1998,99 Takashi Iwai
1da177e4 LT	9	*/
1da177e4 LT	10
a1ce3928 DH	11	#include <sound/asequencer.h>
a1ce3928 DH	12	#include <sound/seq_kernel.h>
1da177e4	13
1da177e4 LT	14	/*
	15	* argument structure for synthesizer operations
	16	*/
080dece3	17	struct snd_seq_oss_arg {
1da177e4 LT	18	/* given by OSS sequencer */
	19	int app_index; /* application unique index */
	20	int file_mode; /* file mode - see below */
	21	int seq_mode; /* sequencer mode - see below */
	22
	23	/* following must be initialized in open callback */
080dece3	24	struct snd_seq_addr addr; /* opened port address */
1da177e4 LT	25	void private_data; / private data for lowlevel drivers */
	26
	27	/* note-on event passing mode: initially given by OSS seq,
	28	* but configurable by drivers - see below
	29	*/
	30	int event_passing;
	31	};
	32
	33
	34	/*
	35	* synthesizer operation callbacks
	36	*/
080dece3	37	struct snd_seq_oss_callback {
1da177e4	38	struct module *owner;
080dece3 TI	39	int (open)(struct snd_seq_oss_arg p, void *closure);
	40	int (close)(struct snd_seq_oss_arg p);
	41	int (ioctl)(struct snd_seq_oss_arg p, unsigned int cmd, unsigned long arg);
	42	int (load_patch)(struct snd_seq_oss_arg p, int format, const char __user *buf, int offs, int count);
	43	int (reset)(struct snd_seq_oss_arg p);
	44	int (raw_event)(struct snd_seq_oss_arg p, unsigned char *data);
1da177e4 LT	45	};
	46
	47	/* flag: file_mode */
	48	#define SNDRV_SEQ_OSS_FILE_ACMODE 3
	49	#define SNDRV_SEQ_OSS_FILE_READ 1
	50	#define SNDRV_SEQ_OSS_FILE_WRITE 2
	51	#define SNDRV_SEQ_OSS_FILE_NONBLOCK 4
	52
	53	/* flag: seq_mode */
	54	#define SNDRV_SEQ_OSS_MODE_SYNTH 0
	55	#define SNDRV_SEQ_OSS_MODE_MUSIC 1
	56
	57	/* flag: event_passing */
	58	#define SNDRV_SEQ_OSS_PROCESS_EVENTS 0 /* key == 255 is processed as velocity change */
	59	#define SNDRV_SEQ_OSS_PASS_EVENTS 1 /* pass all events to callback */
	60	#define SNDRV_SEQ_OSS_PROCESS_KEYPRESS 2 /* key >= 128 will be processed as key-pressure */
	61
	62	/* default control rate: fixed */
	63	#define SNDRV_SEQ_OSS_CTRLRATE 100
	64
	65	/* default max queue length: configurable by module option */
	66	#define SNDRV_SEQ_OSS_MAX_QLEN 1024
	67
	68
	69	/*
	70	* data pointer to snd_seq_register_device
	71	*/
080dece3	72	struct snd_seq_oss_reg {
1da177e4 LT	73	int type;
	74	int subtype;
	75	int nvoices;
080dece3	76	struct snd_seq_oss_callback oper;
1da177e4	77	void *private_data;
080dece3	78	};
1da177e4 LT	79
	80	/* device id */
	81	#define SNDRV_SEQ_DEV_ID_OSS "seq-oss"
	82
	83	#endif /* __SOUND_SEQ_OSS_H */