linux/drivers/media/pci/ivtv/ivtv-yuv.h
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   1/*
   2    yuv support
   3
   4    Copyright (C) 2007  Ian Armstrong <ian@iarmst.demon.co.uk>
   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 IVTV_YUV_H
  22#define IVTV_YUV_H
  23
  24#define IVTV_YUV_BUFFER_UV_OFFSET 0x65400       /* Offset to UV Buffer */
  25
  26/* Offset to filter table in firmware */
  27#define IVTV_YUV_HORIZONTAL_FILTER_OFFSET 0x025d8
  28#define IVTV_YUV_VERTICAL_FILTER_OFFSET 0x03358
  29
  30#define IVTV_YUV_UPDATE_HORIZONTAL  0x01
  31#define IVTV_YUV_UPDATE_VERTICAL    0x02
  32#define IVTV_YUV_UPDATE_INVALID     0x04
  33
  34extern const u32 yuv_offset[IVTV_YUV_BUFFERS];
  35
  36int ivtv_yuv_filter_check(struct ivtv *itv);
  37void ivtv_yuv_setup_stream_frame(struct ivtv *itv);
  38int ivtv_yuv_udma_stream_frame(struct ivtv *itv, void __user *src);
  39void ivtv_yuv_frame_complete(struct ivtv *itv);
  40int ivtv_yuv_prep_frame(struct ivtv *itv, struct ivtv_dma_frame *args);
  41void ivtv_yuv_close(struct ivtv *itv);
  42void ivtv_yuv_work_handler(struct ivtv *itv);
  43
  44#endif
  45