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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
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