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Ubiquitous/RT_Thread/:update the ov2640 driver

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1.can choose the output format:rgb565 or jpeg
2.resolution and window size can be configured directly
3.add the test that the lcd can show rgb565 image in time
This commit is contained in:
chunyexixiaoyu
2022-01-18 15:58:33 +08:00
parent 1c5047f47a
commit 0dee89982a
5 changed files with 130 additions and 50 deletions
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Ubiquitous/RT_Thread/aiit_board/stm32f407_core/applications/ov2640_test.c
+52 -19
View File
@@ -11,14 +11,19 @@
#endif
#endif
#include<drv_ov2640.h>
#ifdef OV2640_JPEG_MODE
#define JPEG_BUF_SIZE (1024*200)
#else
#define JPEG_BUF_SIZE (2*OV2640_X_RESOLUTION_IMAGE_OUTSIZE*OV2640_Y_RESOLUTION_IMAGE_OUTSIZE)
#endif
#define UART_NUMBER2 "uart2"
void lcd_show_ov2640_thread(uint16_t* rgbbuffer);
static int fd = 0;
static _ioctl_shoot_para shoot_para_t = {0};
void ov2640_test(int argc, char **argv)
{
rt_thread_t tid;
rt_err_t ret = 0;
int fd = 0;
fd = open("/dev/ov2640",O_RDONLY);
if(fd < 0)
{
@@ -26,7 +31,6 @@ void ov2640_test(int argc, char **argv)
return;
}
rt_uint8_t* JpegBuffer = rt_malloc(JPEG_BUF_SIZE);
_ioctl_shoot_para shoot_para_t = {0};
if (RT_NULL == JpegBuffer)
{
printf("JpegBuffer senddata buf malloc error!\n");
@@ -34,27 +38,36 @@ void ov2640_test(int argc, char **argv)
}
printf("ov2640 test by printing the image value in memory \r\n");
shoot_para_t.pdata = (uint32_t)JpegBuffer;
#ifdef OV2640_RGB565_MODE
shoot_para_t.length = JPEG_BUF_SIZE/2;
#elif defined OV2640_JPEG_MODE
shoot_para_t.length = JPEG_BUF_SIZE;
#endif
ret = ioctl(fd,IOCTRL_CAMERA_START_SHOT,&shoot_para_t);
if(RT_ERROR == ret)
{
printf("ov2640 can't wait event flag");
return;
}
printf("print the vaule:\r\n\r\n");
ret = rt_ov2640_calculate_jpeg_len(JpegBuffer,JPEG_BUF_SIZE);
printf("photo leghth is %d :\r\n\r\n",ret);
#ifdef BSP_USING_UART2
void img_output_uart2(rt_uint8_t* jpegbuf,rt_uint16_t len);
img_output_uart2(JpegBuffer,ret);
#ifdef OV2640_JPEG_MODE
printf("print the vaule:\r\n\r\n");
ret = rt_ov2640_calculate_jpeg_len(JpegBuffer,JPEG_BUF_SIZE);
printf("photo leghth is %d :\r\n\r\n",ret);
#ifdef BSP_USING_UART2
void img_output_uart2(rt_uint8_t* jpegbuf,rt_uint16_t len);
img_output_uart2(JpegBuffer,ret);
#endif
for(int i =0;i<ret;i++)
{
printf("%x",*(JpegBuffer+i));
}
printf("\r\n\r\n above :\r\n\r\n");
rt_free(JpegBuffer);
close(fd);
#elif defined OV2640_RGB565_MODE
tid = rt_thread_create("lcdshow", lcd_show_ov2640_thread, JpegBuffer,3000, 9, 20);
rt_thread_startup(tid);
#endif
for(int i =0;i<ret;i++)
{
printf("%x",*(JpegBuffer+i));
}
printf("\r\n\r\n above :\r\n\r\n");
rt_free(JpegBuffer);
close(fd);
return;
}
MSH_CMD_EXPORT(ov2640_test,printing the image value in memory);
@@ -90,8 +103,28 @@ void img_output_uart2(rt_uint8_t* jpegbuf,rt_uint16_t len)
}
#endif
#ifdef OV2640_RGB565_MODE
extern void lcd_fill_array(rt_uint16_t x_start, rt_uint16_t y_start, rt_uint16_t x_end, rt_uint16_t y_end, void *pcolor);
void lcd_show_ov2640_thread(uint16_t* rgbbuffer)
{
rt_err_t ret = 0;
while(1)
{
ret = ioctl(fd,IOCTRL_CAMERA_START_SHOT,&shoot_para_t);
if(RT_ERROR == ret)
{
printf("ov2640 can't wait event flag");
rt_free(rgbbuffer);
return;
}
//lcd_show_image(0, 0, 320, 240, rgbbuffer);
lcd_fill_array(0,0,OV2640_X_RESOLUTION_IMAGE_OUTSIZE,OV2640_Y_RESOLUTION_IMAGE_OUTSIZE,rgbbuffer);
rt_thread_mdelay(1);
}
}
#endif
#endif