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#include "OV2640.h"
#define TAG "OV2640"
// definitions appropriate for the ESP32-CAM devboard (and most clones)
camera_config_t esp32cam_config{
.pin_pwdn = -1, // FIXME: on the TTGO T-Journal I think this is GPIO 0
.pin_reset = 15,
.pin_xclk = 27,
.pin_sscb_sda = 25,
.pin_sscb_scl = 23,
.pin_d7 = 19,
.pin_d6 = 36,
.pin_d5 = 18,
.pin_d4 = 39,
.pin_d3 = 5,
.pin_d2 = 34,
.pin_d1 = 35,
.pin_d0 = 17,
.pin_vsync = 22,
.pin_href = 26,
.pin_pclk = 21,
.xclk_freq_hz = 20000000,
.ledc_timer = LEDC_TIMER_0,
.ledc_channel = LEDC_CHANNEL_0,
.pixel_format = PIXFORMAT_JPEG,
// .frame_size = FRAMESIZE_UXGA, // needs 234K of framebuffer space
// .frame_size = FRAMESIZE_SXGA, // needs 160K for framebuffer
// .frame_size = FRAMESIZE_XGA, // needs 96K or even smaller FRAMESIZE_SVGA - can work if using only 1 fb
.frame_size = FRAMESIZE_SVGA,
.jpeg_quality = 12, //0-63 lower numbers are higher quality
.fb_count = 2 // if more than one i2s runs in continous mode. Use only with jpeg
};
camera_config_t esp32cam_aithinker_config{
.pin_pwdn = 32,
.pin_reset = -1,
.pin_xclk = 0,
.pin_sscb_sda = 26,
.pin_sscb_scl = 27,
// Note: LED GPIO is apparently 4 not sure where that goes
// per https://github.com/donny681/ESP32_CAMERA_QR/blob/e4ef44549876457cd841f33a0892c82a71f35358/main/led.c
.pin_d7 = 35,
.pin_d6 = 34,
.pin_d5 = 39,
.pin_d4 = 36,
.pin_d3 = 21,
.pin_d2 = 19,
.pin_d1 = 18,
.pin_d0 = 5,
.pin_vsync = 25,
.pin_href = 23,
.pin_pclk = 22,
.xclk_freq_hz = 20000000,
.ledc_timer = LEDC_TIMER_1,
.ledc_channel = LEDC_CHANNEL_1,
.pixel_format = PIXFORMAT_JPEG,
// .frame_size = FRAMESIZE_UXGA, // needs 234K of framebuffer space
// .frame_size = FRAMESIZE_SXGA, // needs 160K for framebuffer
// .frame_size = FRAMESIZE_XGA, // needs 96K or even smaller FRAMESIZE_SVGA - can work if using only 1 fb
.frame_size = FRAMESIZE_SVGA,
.jpeg_quality = 12, //0-63 lower numbers are higher quality
.fb_count = 2 // if more than one i2s runs in continous mode. Use only with jpeg
};
camera_config_t esp32cam_ttgo_t_config{
.pin_pwdn = 26,
.pin_reset = -1,
.pin_xclk = 32,
.pin_sscb_sda = 13,
.pin_sscb_scl = 12,
.pin_d7 = 39,
.pin_d6 = 36,
.pin_d5 = 23,
.pin_d4 = 18,
.pin_d3 = 15,
.pin_d2 = 4,
.pin_d1 = 14,
.pin_d0 = 5,
.pin_vsync = 27,
.pin_href = 25,
.pin_pclk = 19,
.xclk_freq_hz = 20000000,
.ledc_timer = LEDC_TIMER_0,
.ledc_channel = LEDC_CHANNEL_0,
.pixel_format = PIXFORMAT_JPEG,
.frame_size = FRAMESIZE_SVGA,
.jpeg_quality = 12, //0-63 lower numbers are higher quality
.fb_count = 2 // if more than one i2s runs in continous mode. Use only with jpeg
};
void OV2640::run(void)
{
if (fb)
//return the frame buffer back to the driver for reuse
esp_camera_fb_return(fb);
fb = esp_camera_fb_get();
}
void OV2640::runIfNeeded(void)
{
if (!fb)
run();
}
int OV2640::getWidth(void)
{
runIfNeeded();
return fb->width;
}
int OV2640::getHeight(void)
{
runIfNeeded();
return fb->height;
}
size_t OV2640::getSize(void)
{
runIfNeeded();
if (!fb)
return 0; // FIXME - this shouldn't be possible but apparently the new cam board returns null sometimes?
return fb->len;
}
uint8_t *OV2640::getfb(void)
{
runIfNeeded();
if (!fb)
return NULL; // FIXME - this shouldn't be possible but apparently the new cam board returns null sometimes?
return fb->buf;
}
framesize_t OV2640::getFrameSize(void)
{
return _cam_config.frame_size;
}
void OV2640::setFrameSize(framesize_t size)
{
_cam_config.frame_size = size;
}
pixformat_t OV2640::getPixelFormat(void)
{
return _cam_config.pixel_format;
}
void OV2640::setPixelFormat(pixformat_t format)
{
switch (format)
{
case PIXFORMAT_RGB565:
case PIXFORMAT_YUV422:
case PIXFORMAT_GRAYSCALE:
case PIXFORMAT_JPEG:
_cam_config.pixel_format = format;
break;
default:
_cam_config.pixel_format = PIXFORMAT_GRAYSCALE;
break;
}
}
esp_err_t OV2640::init(camera_config_t config)
{
memset(&_cam_config, 0, sizeof(_cam_config));
memcpy(&_cam_config, &config, sizeof(config));
esp_err_t err = esp_camera_init(&_cam_config);
if (err != ESP_OK)
{
printf("Camera probe failed with error 0x%x", err);
return err;
}
// ESP_ERROR_CHECK(gpio_install_isr_service(0));
return ESP_OK;
}
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