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1da177e4 LT |
1 | /* |
2 | * ALSA sequencer Client Manager | |
3 | * Copyright (c) 1998-1999 by Frank van de Pol <fvdpol@coil.demon.nl> | |
4 | * | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
19 | * | |
20 | */ | |
21 | #ifndef __SND_SEQ_CLIENTMGR_H | |
22 | #define __SND_SEQ_CLIENTMGR_H | |
23 | ||
24 | #include <sound/seq_kernel.h> | |
25 | #include <linux/bitops.h> | |
26 | #include "seq_fifo.h" | |
27 | #include "seq_ports.h" | |
28 | #include "seq_lock.h" | |
29 | ||
30 | ||
31 | /* client manager */ | |
32 | ||
c7e0b5bf | 33 | struct snd_seq_user_client { |
1da177e4 LT |
34 | struct file *file; /* file struct of client */ |
35 | /* ... */ | |
36 | ||
37 | /* fifo */ | |
c7e0b5bf | 38 | struct snd_seq_fifo *fifo; /* queue for incoming events */ |
1da177e4 LT |
39 | int fifo_pool_size; |
40 | }; | |
41 | ||
c7e0b5bf | 42 | struct snd_seq_kernel_client { |
1da177e4 LT |
43 | /* ... */ |
44 | }; | |
45 | ||
46 | ||
c7e0b5bf | 47 | struct snd_seq_client { |
1da177e4 LT |
48 | snd_seq_client_type_t type; |
49 | unsigned int accept_input: 1, | |
50 | accept_output: 1; | |
51 | char name[64]; /* client name */ | |
52 | int number; /* client number */ | |
53 | unsigned int filter; /* filter flags */ | |
54 | DECLARE_BITMAP(event_filter, 256); | |
55 | snd_use_lock_t use_lock; | |
56 | int event_lost; | |
57 | /* ports */ | |
58 | int num_ports; /* number of ports */ | |
59 | struct list_head ports_list_head; | |
60 | rwlock_t ports_lock; | |
1a60d4c5 | 61 | struct mutex ports_mutex; |
1da177e4 LT |
62 | int convert32; /* convert 32->64bit */ |
63 | ||
64 | /* output pool */ | |
c7e0b5bf | 65 | struct snd_seq_pool *pool; /* memory pool for this client */ |
1da177e4 LT |
66 | |
67 | union { | |
c7e0b5bf TI |
68 | struct snd_seq_user_client user; |
69 | struct snd_seq_kernel_client kernel; | |
1da177e4 LT |
70 | } data; |
71 | }; | |
72 | ||
73 | /* usage statistics */ | |
c7e0b5bf | 74 | struct snd_seq_usage { |
1da177e4 LT |
75 | int cur; |
76 | int peak; | |
c7e0b5bf | 77 | }; |
1da177e4 LT |
78 | |
79 | ||
c7e0b5bf TI |
80 | int client_init_data(void); |
81 | int snd_sequencer_device_init(void); | |
82 | void snd_sequencer_device_done(void); | |
1da177e4 LT |
83 | |
84 | /* get locked pointer to client */ | |
c7e0b5bf | 85 | struct snd_seq_client *snd_seq_client_use_ptr(int clientid); |
1da177e4 LT |
86 | |
87 | /* unlock pointer to client */ | |
88 | #define snd_seq_client_unlock(client) snd_use_lock_free(&(client)->use_lock) | |
89 | ||
90 | /* dispatch event to client(s) */ | |
c7e0b5bf | 91 | int snd_seq_dispatch_event(struct snd_seq_event_cell *cell, int atomic, int hop); |
1da177e4 LT |
92 | |
93 | /* exported to other modules */ | |
c7e0b5bf TI |
94 | int snd_seq_kernel_client_enqueue(int client, struct snd_seq_event *ev, int atomic, int hop); |
95 | int snd_seq_kernel_client_enqueue_blocking(int client, struct snd_seq_event * ev, | |
96 | struct file *file, int atomic, int hop); | |
1da177e4 | 97 | int snd_seq_kernel_client_write_poll(int clientid, struct file *file, poll_table *wait); |
c7e0b5bf TI |
98 | int snd_seq_client_notify_subscription(int client, int port, |
99 | struct snd_seq_port_subscribe *info, int evtype); | |
1da177e4 | 100 | |
3b378e1f MŚ |
101 | extern int seq_client_load[15]; |
102 | ||
1da177e4 | 103 | #endif |