drivers/media/video/ivtv/ivtv-yuv.h

   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
  34 extern const u32 yuv_offset[IVTV_YUV_BUFFERS];
  35
  36 int ivtv_yuv_filter_check(struct ivtv *itv);
  37 void ivtv_yuv_setup_stream_frame(struct ivtv *itv);
  38 int ivtv_yuv_udma_stream_frame(struct ivtv *itv, void __user *src);
  39 void ivtv_yuv_frame_complete(struct ivtv *itv);
  40 int ivtv_yuv_prep_frame(struct ivtv *itv, struct ivtv_dma_frame *args);
  41 void ivtv_yuv_close(struct ivtv *itv);
  42 void ivtv_yuv_work_handler(struct ivtv *itv);
  43
  44 #endif