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20#ifndef __SND_SEQ_QUEUE_H
21#define __SND_SEQ_QUEUE_H
22
23#include "seq_memory.h"
24#include "seq_prioq.h"
25#include "seq_timer.h"
26#include "seq_lock.h"
27#include <linux/interrupt.h>
28#include <linux/list.h>
29#include <linux/bitops.h>
30
31#define SEQ_QUEUE_NO_OWNER (-1)
32
33struct snd_seq_queue {
34 int queue;
35
36 char name[64];
37
38 struct snd_seq_prioq *tickq;
39 struct snd_seq_prioq *timeq;
40
41 struct snd_seq_timer *timer;
42 int owner;
43 unsigned int locked:1,
44 klocked:1,
45 check_again:1,
46 check_blocked:1;
47
48 unsigned int flags;
49 unsigned int info_flags;
50
51 spinlock_t owner_lock;
52 spinlock_t check_lock;
53
54
55 DECLARE_BITMAP(clients_bitmap, SNDRV_SEQ_MAX_CLIENTS);
56 unsigned int clients;
57 struct mutex timer_mutex;
58
59 snd_use_lock_t use_lock;
60};
61
62
63
64int snd_seq_queue_get_cur_queues(void);
65
66
67int snd_seq_queues_init(void);
68
69
70void snd_seq_queues_delete(void);
71
72
73
74struct snd_seq_queue *snd_seq_queue_alloc(int client, int locked, unsigned int flags);
75
76
77int snd_seq_queue_delete(int client, int queueid);
78
79
80void snd_seq_queue_client_termination(int client);
81
82
83void snd_seq_queue_client_leave(int client);
84
85
86int snd_seq_enqueue_event(struct snd_seq_event_cell *cell, int atomic, int hop);
87
88
89void snd_seq_queue_client_leave_cells(int client);
90void snd_seq_queue_remove_cells(int client, struct snd_seq_remove_events *info);
91
92
93struct snd_seq_queue *queueptr(int queueid);
94
95#define queuefree(q) snd_use_lock_free(&(q)->use_lock)
96
97
98struct snd_seq_queue *snd_seq_queue_find_name(char *name);
99
100
101void snd_seq_check_queue(struct snd_seq_queue *q, int atomic, int hop);
102
103
104int snd_seq_queue_check_access(int queueid, int client);
105int snd_seq_queue_timer_set_tempo(int queueid, int client, struct snd_seq_queue_tempo *info);
106int snd_seq_queue_set_owner(int queueid, int client, int locked);
107int snd_seq_queue_set_locked(int queueid, int client, int locked);
108int snd_seq_queue_timer_open(int queueid);
109int snd_seq_queue_timer_close(int queueid);
110int snd_seq_queue_use(int queueid, int client, int use);
111int snd_seq_queue_is_used(int queueid, int client);
112
113int snd_seq_control_queue(struct snd_seq_event *ev, int atomic, int hop);
114
115
116
117
118#if defined(i386) || defined(i486)
119
120#define udiv_qrnnd(q, r, n1, n0, d) \
121 __asm__ ("divl %4" \
122 : "=a" ((u32)(q)), \
123 "=d" ((u32)(r)) \
124 : "0" ((u32)(n0)), \
125 "1" ((u32)(n1)), \
126 "rm" ((u32)(d)))
127
128#define u64_div(x,y,q) do {u32 __tmp; udiv_qrnnd(q, __tmp, (x)>>32, x, y);} while (0)
129#define u64_mod(x,y,r) do {u32 __tmp; udiv_qrnnd(__tmp, q, (x)>>32, x, y);} while (0)
130#define u64_divmod(x,y,q,r) udiv_qrnnd(q, r, (x)>>32, x, y)
131
132#else
133#define u64_div(x,y,q) ((q) = (u32)((u64)(x) / (u64)(y)))
134#define u64_mod(x,y,r) ((r) = (u32)((u64)(x) % (u64)(y)))
135#define u64_divmod(x,y,q,r) (u64_div(x,y,q), u64_mod(x,y,r))
136#endif
137
138
139#endif
140