summaryrefslogtreecommitdiffstats
path: root/include/sound/seq_kernel.h
blob: 4beca1952c76e10b0de5f5c02f6112b9bb6c61d7 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
#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 sndrv_seq_tick_time_t snd_seq_tick_time_t;
typedef sndrv_seq_position_t snd_seq_position_t;
typedef sndrv_seq_frequency_t snd_seq_frequency_t;
typedef sndrv_seq_instr_cluster_t snd_seq_instr_cluster_t;
typedef enum sndrv_seq_client_type snd_seq_client_type_t;
typedef enum sndrv_seq_stop_mode snd_seq_stop_mode_t;
typedef struct sndrv_seq_port_info snd_seq_port_info_t;
typedef struct sndrv_seq_port_subscribe snd_seq_port_subscribe_t;
typedef struct sndrv_seq_event snd_seq_event_t;
typedef struct sndrv_seq_addr snd_seq_addr_t;
typedef struct sndrv_seq_ev_volume snd_seq_ev_volume_t;
typedef struct sndrv_seq_ev_loop snd_seq_ev_loop_t;
typedef struct sndrv_seq_remove_events snd_seq_remove_events_t;
typedef struct sndrv_seq_query_subs snd_seq_query_subs_t;
typedef struct sndrv_seq_real_time snd_seq_real_time_t;
typedef struct sndrv_seq_system_info snd_seq_system_info_t;
typedef struct sndrv_seq_client_info snd_seq_client_info_t;
typedef struct sndrv_seq_queue_info snd_seq_queue_info_t;
typedef struct sndrv_seq_queue_status snd_seq_queue_status_t;
typedef struct sndrv_seq_queue_tempo snd_seq_queue_tempo_t;
typedef struct sndrv_seq_queue_owner snd_seq_queue_owner_t;
typedef struct sndrv_seq_queue_timer snd_seq_queue_timer_t;
typedef struct sndrv_seq_queue_client snd_seq_queue_client_t;
typedef struct sndrv_seq_client_pool snd_seq_client_pool_t;
typedef struct sndrv_seq_instr snd_seq_instr_t;
typedef struct sndrv_seq_instr_data snd_seq_instr_data_t;
typedef struct sndrv_seq_instr_header snd_seq_instr_header_t;
typedef union sndrv_seq_timestamp snd_seq_timestamp_t;

#define snd_seq_event_bounce_ext_data	sndrv_seq_event_bounce_ext_data 
#define snd_seq_ev_is_result_type	sndrv_seq_ev_is_result_type     
#define snd_seq_ev_is_channel_type	sndrv_seq_ev_is_channel_type    
#define snd_seq_ev_is_note_type		sndrv_seq_ev_is_note_type       
#define snd_seq_ev_is_control_type	sndrv_seq_ev_is_control_type    
#define snd_seq_ev_is_queue_type	sndrv_seq_ev_is_queue_type      
#define snd_seq_ev_is_message_type	sndrv_seq_ev_is_message_type    
#define snd_seq_ev_is_sample_type	sndrv_seq_ev_is_sample_type     
#define snd_seq_ev_is_user_type		sndrv_seq_ev_is_user_type       
#define snd_seq_ev_is_fixed_type	sndrv_seq_ev_is_fixed_type      
#define snd_seq_ev_is_instr_type	sndrv_seq_ev_is_instr_type      
#define snd_seq_ev_is_variable_type	sndrv_seq_ev_is_variable_type   
#define snd_seq_ev_is_reserved		sndrv_seq_ev_is_reserved        
#define snd_seq_ev_is_direct		sndrv_seq_ev_is_direct          
#define snd_seq_ev_is_prior		sndrv_seq_ev_is_prior           
#define snd_seq_ev_length_type		sndrv_seq_ev_length_type        
#define snd_seq_ev_is_fixed		sndrv_seq_ev_is_fixed           
#define snd_seq_ev_is_variable		sndrv_seq_ev_is_variable        
#define snd_seq_ev_is_varusr		sndrv_seq_ev_is_varusr          
#define snd_seq_ev_timestamp_type	sndrv_seq_ev_timestamp_type     
#define snd_seq_ev_is_tick		sndrv_seq_ev_is_tick            
#define snd_seq_ev_is_real		sndrv_seq_ev_is_real            
#define snd_seq_ev_timemode_type	sndrv_seq_ev_timemode_type      
#define snd_seq_ev_is_abstime		sndrv_seq_ev_is_abstime         
#define snd_seq_ev_is_reltime		sndrv_seq_ev_is_reltime         
#define snd_seq_queue_sync_port		sndrv_seq_queue_sync_port       
#define snd_seq_queue_owner		sndrv_seq_queue_owner           

/* 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

/* typedefs */
struct _snd_seq_user_client;
struct _snd_seq_kernel_client;
struct _snd_seq_client;
struct _snd_seq_queue;

typedef struct _snd_seq_user_client user_client_t;
typedef struct _snd_seq_kernel_client kernel_client_t;
typedef struct _snd_seq_client client_t;
typedef struct _snd_seq_queue queue_t;

/* call-backs for kernel client */

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

/* call-backs for kernel port */
typedef int (snd_seq_kernel_port_open_t)(void *private_data, snd_seq_port_subscribe_t *info);
typedef int (snd_seq_kernel_port_close_t)(void *private_data, snd_seq_port_subscribe_t *info);
typedef int (snd_seq_kernel_port_input_t)(snd_seq_event_t *ev, int direct, void *private_data, int atomic, int hop);
typedef void (snd_seq_kernel_port_private_free_t)(void *private_data);

typedef struct {
	struct module *owner;
	void *private_data;
	snd_seq_kernel_port_open_t *subscribe;
	snd_seq_kernel_port_close_t *unsubscribe;
	snd_seq_kernel_port_open_t *use;
	snd_seq_kernel_port_close_t *unuse;
	snd_seq_kernel_port_input_t *event_input;
	snd_seq_kernel_port_private_free_t *private_free;
	unsigned int callback_all;	/* call subscribe callbacks at each connection/disconnection */
	/*...*/
} snd_seq_port_callback_t;

/* interface for kernel client */
extern int snd_seq_create_kernel_client(snd_card_t *card, int client_index, snd_seq_client_callback_t *callback);
extern int snd_seq_delete_kernel_client(int client);
extern int snd_seq_kernel_client_enqueue(int client, snd_seq_event_t *ev, int atomic, int hop);
extern int snd_seq_kernel_client_dispatch(int client, snd_seq_event_t *ev, int atomic, int hop);
extern 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 snd_seq_event_t *event, int count, char *buf, int in_kernel, int size_aligned);
int snd_seq_dump_var_event(const snd_seq_event_t *event, snd_seq_dump_func_t func, void *private_data);

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

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

/* port attach/detach */
int snd_seq_event_port_attach(int client, snd_seq_port_callback_t *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 */
OpenPOWER on IntegriCloud