1#ifndef __SOUND_SEQ_KERNEL_H
2#define __SOUND_SEQ_KERNEL_H
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24#include <linux/time.h>
25#include <sound/asequencer.h>
26
27typedef struct snd_seq_real_time snd_seq_real_time_t;
28typedef union snd_seq_timestamp snd_seq_timestamp_t;
29
30
31#define SNDRV_SEQ_MAX_QUEUES 32
32
33
34#define SNDRV_SEQ_MAX_CLIENTS 192
35
36
37#define SNDRV_SEQ_MAX_PORTS 254
38
39
40#define SNDRV_SEQ_MAX_EVENTS 2000
41
42
43#define SNDRV_SEQ_DEFAULT_EVENTS 500
44
45
46#define SNDRV_SEQ_MAX_CLIENT_EVENTS 2000
47
48
49#define SNDRV_SEQ_DEFAULT_CLIENT_EVENTS 200
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52
53#define SNDRV_SEQ_MAX_HOPS 8
54
55
56#define SNDRV_SEQ_MAX_EVENT_LEN 0x3fffffff
57
58
59struct snd_seq_port_callback {
60 struct module *owner;
61 void *private_data;
62 int (*subscribe)(void *private_data, struct snd_seq_port_subscribe *info);
63 int (*unsubscribe)(void *private_data, struct snd_seq_port_subscribe *info);
64 int (*use)(void *private_data, struct snd_seq_port_subscribe *info);
65 int (*unuse)(void *private_data, struct snd_seq_port_subscribe *info);
66 int (*event_input)(struct snd_seq_event *ev, int direct, void *private_data, int atomic, int hop);
67 void (*private_free)(void *private_data);
68
69};
70
71
72__printf(3, 4)
73int snd_seq_create_kernel_client(struct snd_card *card, int client_index,
74 const char *name_fmt, ...);
75int snd_seq_delete_kernel_client(int client);
76int snd_seq_kernel_client_enqueue(int client, struct snd_seq_event *ev, int atomic, int hop);
77int snd_seq_kernel_client_dispatch(int client, struct snd_seq_event *ev, int atomic, int hop);
78int snd_seq_kernel_client_ctl(int client, unsigned int cmd, void *arg);
79
80#define SNDRV_SEQ_EXT_MASK 0xc0000000
81#define SNDRV_SEQ_EXT_USRPTR 0x80000000
82#define SNDRV_SEQ_EXT_CHAINED 0x40000000
83
84typedef int (*snd_seq_dump_func_t)(void *ptr, void *buf, int count);
85int snd_seq_expand_var_event(const struct snd_seq_event *event, int count, char *buf,
86 int in_kernel, int size_aligned);
87int snd_seq_dump_var_event(const struct snd_seq_event *event,
88 snd_seq_dump_func_t func, void *private_data);
89
90
91int snd_seq_set_queue_tempo(int client, struct snd_seq_queue_tempo *tempo);
92
93
94void snd_port_init_callback(struct snd_seq_port_callback *p);
95struct snd_seq_port_callback *snd_port_alloc_callback(void);
96
97
98int snd_seq_event_port_attach(int client, struct snd_seq_port_callback *pcbp,
99 int cap, int type, int midi_channels, int midi_voices, char *portname);
100int snd_seq_event_port_detach(int client, int port);
101
102#ifdef CONFIG_MODULES
103void snd_seq_autoload_init(void);
104void snd_seq_autoload_exit(void);
105#else
106#define snd_seq_autoload_init()
107#define snd_seq_autoload_exit()
108#endif
109
110#endif
111