x393_videomem.h

/***************************************************************************//**
* @file      x393_videomem.h
* @brief     Driver for the external DDR3 memory of x393 (currently 0.5GB)
* @copyright Copyright 2016 (C) Elphel, Inc.
* @par <b>License</b>
*  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, see <http://www.gnu.org/licenses/>.
*******************************************************************************/

#define VIDEOMEM_SENSOR_CHANNEL0     8
#define VIDEOMEM_COMPRESSOR_CHANNEL0 12
struct elphel_video_buf_t
{
    int frame_start[4];      ///< Channel 0 frame start (in bytes)
    int frame_full_width[4]; ///< Channel 0 frame full width (in bytes). 1 memory page is 2048 bytes (128 bursts)
    int frame_height[4];     ///< Channel 0 maximal frame height in pixel lines
    int frames_in_buffer[4]; ///< Number of frames in channel 0 buffer

};
int  setup_sensor_memory   (int num_sensor, int window_width,  int window_height, int window_left,
                           int window_top,  x393cmd_t x393cmd, int frame16);
int  control_sensor_memory (int num_sensor, int cmd, int reset_frame, x393cmd_t x393cmd, int frame16);

int setup_compressor_memory (int num_sensor, int window_width,   int window_height, int window_left,
                            int window_top,  int tile_width,     int tile_height,   int tile_vstep,
                            x393cmd_t x393cmd, int frame16);
int control_compressor_memory  (int num_sensor, int cmd, int reset_frame, int extra_pages, int disable_need, x393cmd_t x393cmd, int frame16);
int frames_in_buffer_minus_one (int num_sensor);

void memchan_enable            (int chn, int enable);
void set_memchannel_priority   (int chn, u16 priority);
u16 get_memchannel_priority    (int chn);