video1394.h
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上传日期:2013-02-24
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- /*
- * video1394.h - driver for OHCI 1394 boards
- * Copyright (C)1999,2000 Sebastien Rougeaux <sebastien.rougeaux@anu.edu.au>
- * Peter Schlaile <udbz@rz.uni-karlsruhe.de>
- *
- * 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 _VIDEO_1394_H
- #define _VIDEO_1394_H
- #define VIDEO1394_DRIVER_NAME "video1394"
- #define VIDEO1394_MAX_SIZE 0x4000000
- enum {
- VIDEO1394_BUFFER_FREE = 0,
- VIDEO1394_BUFFER_QUEUED,
- VIDEO1394_BUFFER_READY
- };
- enum {
- VIDEO1394_LISTEN_CHANNEL = 0,
- VIDEO1394_UNLISTEN_CHANNEL,
- VIDEO1394_LISTEN_QUEUE_BUFFER,
- VIDEO1394_LISTEN_WAIT_BUFFER, // wait until buffer is ready
- VIDEO1394_TALK_CHANNEL,
- VIDEO1394_UNTALK_CHANNEL,
- VIDEO1394_TALK_QUEUE_BUFFER,
- VIDEO1394_TALK_WAIT_BUFFER,
- VIDEO1394_LISTEN_POLL_BUFFER // return immediately with -EINTR if not ready
- };
- #define VIDEO1394_SYNC_FRAMES 0x00000001
- #define VIDEO1394_INCLUDE_ISO_HEADERS 0x00000002
- #define VIDEO1394_VARIABLE_PACKET_SIZE 0x00000004
- struct video1394_mmap {
- int channel; /* -1 to find an open channel in LISTEN/TALK */
- unsigned int sync_tag;
- unsigned int nb_buffers;
- unsigned int buf_size;
- unsigned int packet_size; /* For VARIABLE_PACKET_SIZE:
- Maximum packet size */
- unsigned int fps;
- unsigned int syt_offset;
- unsigned int flags;
- };
- /* For TALK_QUEUE_BUFFER with VIDEO1394_VARIABLE_PACKET_SIZE use */
- struct video1394_queue_variable {
- unsigned int channel;
- unsigned int buffer;
- unsigned int* packet_sizes; /* Buffer of size:
- buf_size / packet_size */
- };
- struct video1394_wait {
- unsigned int channel;
- unsigned int buffer;
- struct timeval filltime; /* time of buffer full */
- };
- #endif