83 lines
1.8 KiB
C
83 lines
1.8 KiB
C
/* Copyright 2018 Canaan Inc.
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
#include "ov5640.h"
|
|
#include "ov5640cfg.h"
|
|
#include <stdio.h>
|
|
#include "ov2640.h"
|
|
#include "dvp.h"
|
|
#include "plic.h"
|
|
|
|
extern void mdelay(uint32_t ms);
|
|
|
|
void hal_delay(uint32_t delay)
|
|
{
|
|
mdelay(delay);
|
|
}
|
|
|
|
uint8_t ov5640_wr_reg(uint16_t reg,uint8_t data)
|
|
{
|
|
dvp_sccb_write(OV5640_ADDR, reg, data);
|
|
return 0;
|
|
}
|
|
|
|
uint8_t ov5640_rd_reg(uint16_t reg)
|
|
{
|
|
return dvp_sccb_read(OV5640_ADDR, reg);
|
|
}
|
|
|
|
uint8_t ov5640_init(void)
|
|
{
|
|
uint16_t i = 0;
|
|
uint16_t reg = 0;
|
|
|
|
reg = ov5640_rd_reg(OV5640_CHIPIDH);
|
|
reg <<= 8;
|
|
reg |= ov5640_rd_reg(OV5640_CHIPIDL);
|
|
printf("ID: %X \r\n", reg);
|
|
if(reg != OV5640_ID)
|
|
{
|
|
printf("ID: %d \r\n", reg);
|
|
return 1;
|
|
}
|
|
|
|
ov5640_wr_reg(0x3103,0X11); /*system clock from pad, bit[1]*/
|
|
ov5640_wr_reg(0X3008,0X82);
|
|
hal_delay(10);
|
|
|
|
for(i = 0; i<sizeof(ov5640_init_reg_tbl) / 4; i++)
|
|
{
|
|
ov5640_wr_reg(ov5640_init_reg_tbl[i][0], ov5640_init_reg_tbl[i][1]);
|
|
}
|
|
|
|
hal_delay(50);
|
|
/* Test for flash light*/
|
|
ov5640_flash_lamp(1);
|
|
hal_delay(50);
|
|
ov5640_flash_lamp(0);
|
|
|
|
return 0x00;
|
|
}
|
|
|
|
void ov5640_flash_lamp(uint8_t sw)
|
|
{
|
|
ov5640_wr_reg(0x3016, 0X02);
|
|
ov5640_wr_reg(0x301C, 0X02);
|
|
if(sw)
|
|
ov5640_wr_reg(0X3019, 0X02);
|
|
else
|
|
ov5640_wr_reg(0X3019, 0X00);
|
|
}
|
|
|