[GitHub/mt8127/android_kernel_alcatel_ttab.git] / include / sound / seq_kernel.h

#ifndef __SOUND_SEQ_KERNEL_H
#define __SOUND_SEQ_KERNEL_H

/*
 *  Main kernel header file for the ALSA sequencer
 *  Copyright (c) 1998 by Frank van de Pol <fvdpol@coil.demon.nl>
 *
 *
 *   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
 *
 */
#include <linux/time.h>
#include "asequencer.h"

typedef struct snd_seq_real_time snd_seq_real_time_t;
typedef union snd_seq_timestamp snd_seq_timestamp_t;

/* maximum number of events dequeued per schedule interval */
#define SNDRV_SEQ_MAX_DEQUEUE		50

/* maximum number of queues */
#define SNDRV_SEQ_MAX_QUEUES		8

/* max number of concurrent clients */
#define SNDRV_SEQ_MAX_CLIENTS 		192

/* max number of concurrent ports */
#define SNDRV_SEQ_MAX_PORTS 		254

/* max number of events in memory pool */
#define SNDRV_SEQ_MAX_EVENTS		2000

/* default number of events in memory chunk */
#define SNDRV_SEQ_DEFAULT_CHUNK_EVENTS	64

/* default number of events in memory pool */
#define SNDRV_SEQ_DEFAULT_EVENTS	500

/* max number of events in memory pool for one client (outqueue) */
#define SNDRV_SEQ_MAX_CLIENT_EVENTS	2000

/* default number of events in memory pool for one client (outqueue) */
#define SNDRV_SEQ_DEFAULT_CLIENT_EVENTS	200

/* max delivery path length */
#define SNDRV_SEQ_MAX_HOPS		10

/* max size of event size */
#define SNDRV_SEQ_MAX_EVENT_LEN		0x3fffffff

/* call-backs for kernel client */

struct snd_seq_client_callback {
	void *private_data;
	unsigned allow_input: 1,
		 allow_output: 1;
	/*...*/
};

/* call-backs for kernel port */
struct snd_seq_port_callback {
	struct module *owner;
	void *private_data;
	int (*subscribe)(void *private_data, struct snd_seq_port_subscribe *info);
	int (*unsubscribe)(void *private_data, struct snd_seq_port_subscribe *info);
	int (*use)(void *private_data, struct snd_seq_port_subscribe *info);
	int (*unuse)(void *private_data, struct snd_seq_port_subscribe *info);
	int (*event_input)(struct snd_seq_event *ev, int direct, void *private_data, int atomic, int hop);
	void (*private_free)(void *private_data);
	unsigned int callback_all;	/* call subscribe callbacks at each connection/disconnection */
	/*...*/
};

/* interface for kernel client */
int snd_seq_create_kernel_client(struct snd_card *card, int client_index,
				 struct snd_seq_client_callback *callback);
int snd_seq_delete_kernel_client(int client);
int snd_seq_kernel_client_enqueue(int client, struct snd_seq_event *ev, int atomic, int hop);
int snd_seq_kernel_client_dispatch(int client, struct snd_seq_event *ev, int atomic, int hop);
int snd_seq_kernel_client_ctl(int client, unsigned int cmd, void *arg);

#define SNDRV_SEQ_EXT_MASK	0xc0000000
#define SNDRV_SEQ_EXT_USRPTR	0x80000000
#define SNDRV_SEQ_EXT_CHAINED	0x40000000

typedef int (*snd_seq_dump_func_t)(void *ptr, void *buf, int count);
int snd_seq_expand_var_event(const struct snd_seq_event *event, int count, char *buf,
			     int in_kernel, int size_aligned);
int snd_seq_dump_var_event(const struct snd_seq_event *event,
			   snd_seq_dump_func_t func, void *private_data);

/* interface for OSS emulation */
int snd_seq_set_queue_tempo(int client, struct snd_seq_queue_tempo *tempo);

/* port callback routines */
void snd_port_init_callback(struct snd_seq_port_callback *p);
struct snd_seq_port_callback *snd_port_alloc_callback(void);

/* port attach/detach */
int snd_seq_event_port_attach(int client, struct snd_seq_port_callback *pcbp,
			      int cap, int type, int midi_channels, int midi_voices, char *portname);
int snd_seq_event_port_detach(int client, int port);

#ifdef CONFIG_KMOD
void snd_seq_autoload_lock(void);
void snd_seq_autoload_unlock(void);
#else
#define snd_seq_autoload_lock()
#define snd_seq_autoload_unlock()
#endif

#endif /* __SOUND_SEQ_KERNEL_H */
Commit	Line	Data
1da177e4 LT	1	#ifndef __SOUND_SEQ_KERNEL_H
	2	#define __SOUND_SEQ_KERNEL_H
	3
	4	/*
	5	* Main kernel header file for the ALSA sequencer
	6	* Copyright (c) 1998 by Frank van de Pol <fvdpol@coil.demon.nl>
	7	*
	8	*
	9	* This program is free software; you can redistribute it and/or modify
	10	* it under the terms of the GNU General Public License as published by
	11	* the Free Software Foundation; either version 2 of the License, or
	12	* (at your option) any later version.
	13	*
	14	* This program is distributed in the hope that it will be useful,
	15	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	16	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	17	* GNU General Public License for more details.
	18	*
	19	* You should have received a copy of the GNU General Public License
	20	* along with this program; if not, write to the Free Software
	21	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	22	*
	23	*/
	24	#include <linux/time.h>
	25	#include "asequencer.h"
	26
c7e0b5bf TI	27	typedef struct snd_seq_real_time snd_seq_real_time_t;
c7e0b5bf TI	28	typedef union snd_seq_timestamp snd_seq_timestamp_t;
1da177e4 LT	29
	30	/* maximum number of events dequeued per schedule interval */
	31	#define SNDRV_SEQ_MAX_DEQUEUE 50
	32
	33	/* maximum number of queues */
	34	#define SNDRV_SEQ_MAX_QUEUES 8
	35
	36	/* max number of concurrent clients */
	37	#define SNDRV_SEQ_MAX_CLIENTS 192
	38
	39	/* max number of concurrent ports */
	40	#define SNDRV_SEQ_MAX_PORTS 254
	41
	42	/* max number of events in memory pool */
	43	#define SNDRV_SEQ_MAX_EVENTS 2000
	44
	45	/* default number of events in memory chunk */
	46	#define SNDRV_SEQ_DEFAULT_CHUNK_EVENTS 64
	47
	48	/* default number of events in memory pool */
	49	#define SNDRV_SEQ_DEFAULT_EVENTS 500
	50
	51	/* max number of events in memory pool for one client (outqueue) */
	52	#define SNDRV_SEQ_MAX_CLIENT_EVENTS 2000
	53
	54	/* default number of events in memory pool for one client (outqueue) */
	55	#define SNDRV_SEQ_DEFAULT_CLIENT_EVENTS 200
	56
	57	/* max delivery path length */
	58	#define SNDRV_SEQ_MAX_HOPS 10
	59
	60	/* max size of event size */
	61	#define SNDRV_SEQ_MAX_EVENT_LEN 0x3fffffff
	62
1da177e4 LT	63	/* call-backs for kernel client */
1da177e4 LT	64
c7e0b5bf	65	struct snd_seq_client_callback {
1da177e4 LT	66	void *private_data;
	67	unsigned allow_input: 1,
	68	allow_output: 1;
	69	/.../
c7e0b5bf	70	};
1da177e4 LT	71
1da177e4 LT	72	/* call-backs for kernel port */
c7e0b5bf	73	struct snd_seq_port_callback {
1da177e4 LT	74	struct module *owner;
1da177e4 LT	75	void *private_data;
c7e0b5bf TI	76	int (subscribe)(void private_data, struct snd_seq_port_subscribe *info);
	77	int (unsubscribe)(void private_data, struct snd_seq_port_subscribe *info);
	78	int (use)(void private_data, struct snd_seq_port_subscribe *info);
	79	int (unuse)(void private_data, struct snd_seq_port_subscribe *info);
	80	int (event_input)(struct snd_seq_event ev, int direct, void *private_data, int atomic, int hop);
	81	void (private_free)(void private_data);
1da177e4 LT	82	unsigned int callback_all; /* call subscribe callbacks at each connection/disconnection */
1da177e4 LT	83	/.../
c7e0b5bf	84	};
1da177e4 LT	85
1da177e4 LT	86	/* interface for kernel client */
c7e0b5bf TI	87	int snd_seq_create_kernel_client(struct snd_card *card, int client_index,
	88	struct snd_seq_client_callback *callback);
	89	int snd_seq_delete_kernel_client(int client);
	90	int snd_seq_kernel_client_enqueue(int client, struct snd_seq_event *ev, int atomic, int hop);
	91	int snd_seq_kernel_client_dispatch(int client, struct snd_seq_event *ev, int atomic, int hop);
	92	int snd_seq_kernel_client_ctl(int client, unsigned int cmd, void *arg);
1da177e4 LT	93
	94	#define SNDRV_SEQ_EXT_MASK 0xc0000000
	95	#define SNDRV_SEQ_EXT_USRPTR 0x80000000
	96	#define SNDRV_SEQ_EXT_CHAINED 0x40000000
	97
	98	typedef int (snd_seq_dump_func_t)(void ptr, void *buf, int count);
c7e0b5bf TI	99	int snd_seq_expand_var_event(const struct snd_seq_event event, int count, char buf,
	100	int in_kernel, int size_aligned);
	101	int snd_seq_dump_var_event(const struct snd_seq_event *event,
	102	snd_seq_dump_func_t func, void *private_data);
1da177e4 LT	103
1da177e4 LT	104	/* interface for OSS emulation */
c7e0b5bf	105	int snd_seq_set_queue_tempo(int client, struct snd_seq_queue_tempo *tempo);
1da177e4 LT	106
1da177e4 LT	107	/* port callback routines */
c7e0b5bf TI	108	void snd_port_init_callback(struct snd_seq_port_callback *p);
c7e0b5bf TI	109	struct snd_seq_port_callback *snd_port_alloc_callback(void);
1da177e4 LT	110
1da177e4 LT	111	/* port attach/detach */
c7e0b5bf	112	int snd_seq_event_port_attach(int client, struct snd_seq_port_callback *pcbp,
1da177e4 LT	113	int cap, int type, int midi_channels, int midi_voices, char *portname);
	114	int snd_seq_event_port_detach(int client, int port);
	115
	116	#ifdef CONFIG_KMOD
	117	void snd_seq_autoload_lock(void);
	118	void snd_seq_autoload_unlock(void);
	119	#else
	120	#define snd_seq_autoload_lock()
	121	#define snd_seq_autoload_unlock()
	122	#endif
	123
	124	#endif /* __SOUND_SEQ_KERNEL_H */