FreeRTOS/Demo/CORTEX_A5_SAMA5D3x_Xplained_IAR/AtmelFiles/libboard_sama5d3x-ek/source/ov.c

/* ----------------------------------------------------------------------------
 *         SAM Software Package License 
 * ----------------------------------------------------------------------------
 * Copyright (c) 2013, Atmel Corporation
 *
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * - Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the disclaimer below.
 *
 * Atmel's name may not be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
 * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
 * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * ----------------------------------------------------------------------------
 */
 
 
/*----------------------------------------------------------------------------
 *        Headers
 *----------------------------------------------------------------------------*/
#include "board.h"

const static struct capture_size ov_sizes[] = {
//  {width, height}
    /// VGA
    { 640, 360 },
    { 640, 480 },
    // SWVGA
    { 800, 600 },
    /// SXGA
    {1280, 960 },
    {1280, 720 },
    /// UXGA
    {1600, 1200 },
};

/*----------------------------------------------------------------------------
 *        Global Functions
 *----------------------------------------------------------------------------*/
 
/**
 * \brief  Configure the OV for a specified image size, pixel format, 
 * and frame period.
 */
void ov_configure(Twid *pTwid, uint8_t ovType, uint32_t width, uint32_t heigth)
{
    const struct ov_reg *reg_conf;
    uint8_t goodCaptureSize = 0;
    uint8_t i;
    
    reg_conf = ov5640_yuv_vga;
    TRACE_DEBUG("ovxxx_configure\n\r");
    for( i = 0; i< sizeof(ov_sizes); i++ ) {
        if( ov_sizes[i].width == width ) {
            if( ov_sizes[i].height != heigth ) {
                TRACE_INFO("ov configure vsize not define\n\r");
            }
            else {
                goodCaptureSize = 1;
                break;
            }
        }
    }
    if( goodCaptureSize == 0 ) {
        TRACE_ERROR("Problem size\n\r");
        while(1);
    }
    switch (ovType){
        case OV_2640: {
             // Default value
             reg_conf = ov2640_yuv_vga;
             // common register initialization
             switch(width) {
                 case 640: //VGA
                     printf("-I- VGA 640 x 480\n\r");
                     reg_conf = ov2640_yuv_vga;
                     break;
                 default:
                     TRACE_DEBUG("ov2640_configure problem\n\r");
                     break;
             }
             break;
        }
        case OV_7740: {
             // Default value
             reg_conf = ov7740_yuv_vga;
             // common register initialization
             switch(width) {
                 case 640: //VGA
                     printf("-I- VGA 640 x 480\n\r");
                     reg_conf = ov7740_yuv_vga;
                     break;
                 default:
                     TRACE_DEBUG("ov7740_configure problem\n\r");
                     break;
             }
             break;
        }
        case OV_9740: {
             // Default value
             reg_conf = ov9740_yuv_vga;
             // common register initialization
             switch(width) {
                 case 640: //VGA
                     printf("-I- VGA 640 x 360\n\r");
                     reg_conf = ov9740_yuv_vga;
                     break;
                 case 1280: //VGA
                     printf("-I- VGA 1280 x 720\n\r");
                     reg_conf = ov9740_yuv_sxga;
                     break;
                 default:
                     TRACE_DEBUG("ov9740_configure problem\n\r");
                     break;
             }
             break;
        }
        case OV_2643: {
             // Default value
             reg_conf = ov2643_yuv_vga;
             // common register initialization
             switch(width) {
                 case 1600: //UXGA
                     printf("-I- UXGA 1600 x 1200 \n\r");
                     reg_conf = ov2643_yuv_uxga;
                     break;
                 case 800: //SWVGA
                     printf("-I- SWVGA 800 x 600\n\r");
                     reg_conf = ov2643_yuv_swvga;
                     break;
                 case 640: //VGA
                     printf("-I- VGA 640 x 480\n\r");
                     reg_conf = ov2643_yuv_vga;
                     break;
                 default:  
                     TRACE_DEBUG("ov2643_configure problem\n\r");
                     break;
             }
            break;
        }
        case OV_5640: {
             // Default value
             reg_conf = ov5640_yuv_vga;
             // common register initialization
             switch(width) {
                 case 640: //VGA
                     printf("-I- VGA 640 x 480\n\r");
                     reg_conf = ov5640_yuv_vga;
                     break;
                 case 1280: //SXGA
                     printf("-I- SXGA 1280 x 720\n\r");
                     reg_conf = ov5640_yuv_sxga;
                     break;
                 default:  
                     TRACE_DEBUG("ov5640_configure problem\n\r");
                     break;
             }
             break;
        }
    }
    if ((ovType == OV_5640) || (ovType == OV_9740))
        ov_write_regs16(pTwid, reg_conf);
    else 
        ov_write_regs8(pTwid, reg_conf);
}


/**
 * \brief  Configure the OV 5640 afc fireware. 
 */
void ov_5640Afc_Firmware(Twid *pTwid)
{
    const struct ov_reg *reg_conf;
    reg_conf = ov5640_afc;
    ov_write_regs16(pTwid, reg_conf);
}