1 #ifndef __SOUND_SEQ_KERNEL_H
2 #define __SOUND_SEQ_KERNEL_H
5 * Main kernel header file for the ALSA sequencer
6 * Copyright (c) 1998 by Frank van de Pol <fvdpol@coil.demon.nl>
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.
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.
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
24 #include <linux/time.h>
25 #include "asequencer.h"
27 typedef sndrv_seq_tick_time_t snd_seq_tick_time_t;
28 typedef sndrv_seq_position_t snd_seq_position_t;
29 typedef sndrv_seq_frequency_t snd_seq_frequency_t;
30 typedef sndrv_seq_instr_cluster_t snd_seq_instr_cluster_t;
31 typedef enum sndrv_seq_client_type snd_seq_client_type_t;
32 typedef enum sndrv_seq_stop_mode snd_seq_stop_mode_t;
33 typedef struct sndrv_seq_port_info snd_seq_port_info_t;
34 typedef struct sndrv_seq_port_subscribe snd_seq_port_subscribe_t;
35 typedef struct sndrv_seq_event snd_seq_event_t;
36 typedef struct sndrv_seq_addr snd_seq_addr_t;
37 typedef struct sndrv_seq_ev_volume snd_seq_ev_volume_t;
38 typedef struct sndrv_seq_ev_loop snd_seq_ev_loop_t;
39 typedef struct sndrv_seq_remove_events snd_seq_remove_events_t;
40 typedef struct sndrv_seq_query_subs snd_seq_query_subs_t;
41 typedef struct sndrv_seq_real_time snd_seq_real_time_t;
42 typedef struct sndrv_seq_system_info snd_seq_system_info_t;
43 typedef struct sndrv_seq_client_info snd_seq_client_info_t;
44 typedef struct sndrv_seq_queue_info snd_seq_queue_info_t;
45 typedef struct sndrv_seq_queue_status snd_seq_queue_status_t;
46 typedef struct sndrv_seq_queue_tempo snd_seq_queue_tempo_t;
47 typedef struct sndrv_seq_queue_owner snd_seq_queue_owner_t;
48 typedef struct sndrv_seq_queue_timer snd_seq_queue_timer_t;
49 typedef struct sndrv_seq_queue_client snd_seq_queue_client_t;
50 typedef struct sndrv_seq_client_pool snd_seq_client_pool_t;
51 typedef struct sndrv_seq_instr snd_seq_instr_t;
52 typedef struct sndrv_seq_instr_data snd_seq_instr_data_t;
53 typedef struct sndrv_seq_instr_header snd_seq_instr_header_t;
54 typedef union sndrv_seq_timestamp snd_seq_timestamp_t;
56 #define snd_seq_event_bounce_ext_data sndrv_seq_event_bounce_ext_data
57 #define snd_seq_ev_is_result_type sndrv_seq_ev_is_result_type
58 #define snd_seq_ev_is_channel_type sndrv_seq_ev_is_channel_type
59 #define snd_seq_ev_is_note_type sndrv_seq_ev_is_note_type
60 #define snd_seq_ev_is_control_type sndrv_seq_ev_is_control_type
61 #define snd_seq_ev_is_queue_type sndrv_seq_ev_is_queue_type
62 #define snd_seq_ev_is_message_type sndrv_seq_ev_is_message_type
63 #define snd_seq_ev_is_sample_type sndrv_seq_ev_is_sample_type
64 #define snd_seq_ev_is_user_type sndrv_seq_ev_is_user_type
65 #define snd_seq_ev_is_fixed_type sndrv_seq_ev_is_fixed_type
66 #define snd_seq_ev_is_instr_type sndrv_seq_ev_is_instr_type
67 #define snd_seq_ev_is_variable_type sndrv_seq_ev_is_variable_type
68 #define snd_seq_ev_is_reserved sndrv_seq_ev_is_reserved
69 #define snd_seq_ev_is_direct sndrv_seq_ev_is_direct
70 #define snd_seq_ev_is_prior sndrv_seq_ev_is_prior
71 #define snd_seq_ev_length_type sndrv_seq_ev_length_type
72 #define snd_seq_ev_is_fixed sndrv_seq_ev_is_fixed
73 #define snd_seq_ev_is_variable sndrv_seq_ev_is_variable
74 #define snd_seq_ev_is_varusr sndrv_seq_ev_is_varusr
75 #define snd_seq_ev_timestamp_type sndrv_seq_ev_timestamp_type
76 #define snd_seq_ev_is_tick sndrv_seq_ev_is_tick
77 #define snd_seq_ev_is_real sndrv_seq_ev_is_real
78 #define snd_seq_ev_timemode_type sndrv_seq_ev_timemode_type
79 #define snd_seq_ev_is_abstime sndrv_seq_ev_is_abstime
80 #define snd_seq_ev_is_reltime sndrv_seq_ev_is_reltime
81 #define snd_seq_queue_sync_port sndrv_seq_queue_sync_port
82 #define snd_seq_queue_owner sndrv_seq_queue_owner
84 /* maximum number of events dequeued per schedule interval */
85 #define SNDRV_SEQ_MAX_DEQUEUE 50
87 /* maximum number of queues */
88 #define SNDRV_SEQ_MAX_QUEUES 8
90 /* max number of concurrent clients */
91 #define SNDRV_SEQ_MAX_CLIENTS 192
93 /* max number of concurrent ports */
94 #define SNDRV_SEQ_MAX_PORTS 254
96 /* max number of events in memory pool */
97 #define SNDRV_SEQ_MAX_EVENTS 2000
99 /* default number of events in memory chunk */
100 #define SNDRV_SEQ_DEFAULT_CHUNK_EVENTS 64
102 /* default number of events in memory pool */
103 #define SNDRV_SEQ_DEFAULT_EVENTS 500
105 /* max number of events in memory pool for one client (outqueue) */
106 #define SNDRV_SEQ_MAX_CLIENT_EVENTS 2000
108 /* default number of events in memory pool for one client (outqueue) */
109 #define SNDRV_SEQ_DEFAULT_CLIENT_EVENTS 200
111 /* max delivery path length */
112 #define SNDRV_SEQ_MAX_HOPS 10
114 /* max size of event size */
115 #define SNDRV_SEQ_MAX_EVENT_LEN 0x3fffffff
118 struct _snd_seq_user_client;
119 struct _snd_seq_kernel_client;
120 struct _snd_seq_client;
121 struct _snd_seq_queue;
123 typedef struct _snd_seq_user_client user_client_t;
124 typedef struct _snd_seq_kernel_client kernel_client_t;
125 typedef struct _snd_seq_client client_t;
126 typedef struct _snd_seq_queue queue_t;
128 /* call-backs for kernel client */
132 unsigned allow_input: 1,
135 } snd_seq_client_callback_t;
137 /* call-backs for kernel port */
138 typedef int (snd_seq_kernel_port_open_t)(void *private_data, snd_seq_port_subscribe_t *info);
139 typedef int (snd_seq_kernel_port_close_t)(void *private_data, snd_seq_port_subscribe_t *info);
140 typedef int (snd_seq_kernel_port_input_t)(snd_seq_event_t *ev, int direct, void *private_data, int atomic, int hop);
141 typedef void (snd_seq_kernel_port_private_free_t)(void *private_data);
144 struct module *owner;
146 snd_seq_kernel_port_open_t *subscribe;
147 snd_seq_kernel_port_close_t *unsubscribe;
148 snd_seq_kernel_port_open_t *use;
149 snd_seq_kernel_port_close_t *unuse;
150 snd_seq_kernel_port_input_t *event_input;
151 snd_seq_kernel_port_private_free_t *private_free;
152 unsigned int callback_all; /* call subscribe callbacks at each connection/disconnection */
154 } snd_seq_port_callback_t;
156 /* interface for kernel client */
157 extern int snd_seq_create_kernel_client(snd_card_t *card, int client_index, snd_seq_client_callback_t *callback);
158 extern int snd_seq_delete_kernel_client(int client);
159 extern int snd_seq_kernel_client_enqueue(int client, snd_seq_event_t *ev, int atomic, int hop);
160 extern int snd_seq_kernel_client_dispatch(int client, snd_seq_event_t *ev, int atomic, int hop);
161 extern int snd_seq_kernel_client_ctl(int client, unsigned int cmd, void *arg);
163 #define SNDRV_SEQ_EXT_MASK 0xc0000000
164 #define SNDRV_SEQ_EXT_USRPTR 0x80000000
165 #define SNDRV_SEQ_EXT_CHAINED 0x40000000
167 typedef int (*snd_seq_dump_func_t)(void *ptr, void *buf, int count);
168 int snd_seq_expand_var_event(const snd_seq_event_t *event, int count, char *buf, int in_kernel, int size_aligned);
169 int snd_seq_dump_var_event(const snd_seq_event_t *event, snd_seq_dump_func_t func, void *private_data);
171 /* interface for OSS emulation */
172 int snd_seq_set_queue_tempo(int client, snd_seq_queue_tempo_t *tempo);
174 /* port callback routines */
175 void snd_port_init_callback(snd_seq_port_callback_t *p);
176 snd_seq_port_callback_t *snd_port_alloc_callback(void);
178 /* port attach/detach */
179 int snd_seq_event_port_attach(int client, snd_seq_port_callback_t *pcbp,
180 int cap, int type, int midi_channels, int midi_voices, char *portname);
181 int snd_seq_event_port_detach(int client, int port);
184 void snd_seq_autoload_lock(void);
185 void snd_seq_autoload_unlock(void);
187 #define snd_seq_autoload_lock()
188 #define snd_seq_autoload_unlock()
191 #endif /* __SOUND_SEQ_KERNEL_H */