cinelerra/video1394.h

   1 /*
   2  * video1394.h - driver for OHCI 1394 boards
   3  * Copyright (C)1999,2000 Sebastien Rougeaux <sebastien.rougeaux@anu.edu.au>
   4  *                        Peter Schlaile <udbz@rz.uni-karlsruhe.de>
   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 Foundation,
  18  * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  19  */
  20
  21 #ifndef _VIDEO_1394_H
  22 #define _VIDEO_1394_H
  23
  24 #define VIDEO1394_DRIVER_NAME "video1394"
  25
  26 #define VIDEO1394_MAX_SIZE 0x4000000
  27
  28 enum {
  29         VIDEO1394_BUFFER_FREE = 0,
  30         VIDEO1394_BUFFER_QUEUED,
  31         VIDEO1394_BUFFER_READY
  32 };
  33
  34 enum {
  35         VIDEO1394_LISTEN_CHANNEL = 0,
  36         VIDEO1394_UNLISTEN_CHANNEL,
  37         VIDEO1394_LISTEN_QUEUE_BUFFER,
  38         VIDEO1394_LISTEN_WAIT_BUFFER,  // wait until buffer is ready
  39         VIDEO1394_TALK_CHANNEL,
  40         VIDEO1394_UNTALK_CHANNEL,
  41         VIDEO1394_TALK_QUEUE_BUFFER,
  42         VIDEO1394_TALK_WAIT_BUFFER,
  43         VIDEO1394_LISTEN_POLL_BUFFER   // return immediately with -EINTR if not ready
  44 };
  45
  46 #define VIDEO1394_SYNC_FRAMES          0x00000001
  47 #define VIDEO1394_INCLUDE_ISO_HEADERS  0x00000002
  48 #define VIDEO1394_VARIABLE_PACKET_SIZE 0x00000004
  49
  50 struct video1394_mmap {
  51         int channel;                    /* -1 to find an open channel in LISTEN/TALK */
  52         unsigned int sync_tag;
  53         unsigned int nb_buffers;
  54         unsigned int buf_size;
  55         unsigned int packet_size; /* For VARIABLE_PACKET_SIZE:
  56                                      Maximum packet size */
  57         unsigned int fps;
  58         unsigned int syt_offset;
  59         unsigned int flags;
  60 };
  61
  62 /* For TALK_QUEUE_BUFFER with VIDEO1394_VARIABLE_PACKET_SIZE use */
  63 struct video1394_queue_variable {
  64         unsigned int channel;
  65         unsigned int buffer;
  66         unsigned int* packet_sizes; /* Buffer of size:
  67                                        buf_size / packet_size  */
  68 };
  69
  70 struct video1394_wait {
  71         unsigned int channel;
  72         unsigned int buffer;
  73         struct timeval filltime;        /* time of buffer full */
  74 };
  75
  76
  77 #endif