/* * ALSA sequencer Client Manager * Copyright (c) 1998-1999 by Frank van de Pol * * * 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 * */ #ifndef __SND_SEQ_CLIENTMGR_H #define __SND_SEQ_CLIENTMGR_H #include #include #include "seq_fifo.h" #include "seq_ports.h" #include "seq_lock.h" /* client manager */ struct snd_seq_user_client { struct file *file; /* file struct of client */ /* ... */ struct pid *owner; /* fifo */ struct snd_seq_fifo *fifo; /* queue for incoming events */ int fifo_pool_size; }; struct snd_seq_kernel_client { /* ... */ struct snd_card *card; }; struct snd_seq_client { snd_seq_client_type_t type; unsigned int accept_input: 1, accept_output: 1; char name[64]; /* client name */ int number; /* client number */ unsigned int filter; /* filter flags */ DECLARE_BITMAP(event_filter, 256); snd_use_lock_t use_lock; int event_lost; /* ports */ int num_ports; /* number of ports */ struct list_head ports_list_head; rwlock_t ports_lock; struct mutex ports_mutex; int convert32; /* convert 32->64bit */ /* output pool */ struct snd_seq_pool *pool; /* memory pool for this client */ union { struct snd_seq_user_client user; struct snd_seq_kernel_client kernel; } data; }; /* usage statistics */ struct snd_seq_usage { int cur; int peak; }; int client_init_data(void); int snd_sequencer_device_init(void); void snd_sequencer_device_done(void); /* get locked pointer to client */ struct snd_seq_client *snd_seq_client_use_ptr(int clientid); /* unlock pointer to client */ #define snd_seq_client_unlock(client) snd_use_lock_free(&(client)->use_lock) /* dispatch event to client(s) */ int snd_seq_dispatch_event(struct snd_seq_event_cell *cell, int atomic, int hop); /* exported to other modules */ int snd_seq_kernel_client_enqueue(int client, struct snd_seq_event *ev, int atomic, int hop); int snd_seq_kernel_client_enqueue_blocking(int client, struct snd_seq_event * ev, struct file *file, int atomic, int hop); int snd_seq_kernel_client_write_poll(int clientid, struct file *file, poll_table *wait); int snd_seq_client_notify_subscription(int client, int port, struct snd_seq_port_subscribe *info, int evtype); extern int seq_client_load[15]; #endif f820854cfe36405e4dcfc22a211'>usb/gadget/function/u_phonet.h

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