You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
62 lines
1.7 KiB
62 lines
1.7 KiB
4 years ago
|
#include "driver/gpio.h"
|
||
|
|
#include "driver/ledc.h"
|
||
|
|
#include "esp_err.h"
|
||
|
|
#include "esp_log.h"
|
||
|
|
#include "esp_system.h"
|
||
|
|
#include "xclk.h"
|
||
|
|
|
||
|
|
#if defined(ARDUINO_ARCH_ESP32) && defined(CONFIG_ARDUHAL_ESP_LOG)
|
||
|
|
#include "esp32-hal-log.h"
|
||
|
|
#else
|
||
|
|
#include "esp_log.h"
|
||
|
|
static const char* TAG = "camera_xclk";
|
||
|
|
#endif
|
||
|
|
|
||
|
|
esp_err_t xclk_timer_conf(int ledc_timer, int xclk_freq_hz)
|
||
|
|
{
|
||
|
|
ledc_timer_config_t timer_conf;
|
||
|
|
timer_conf.duty_resolution = 2;
|
||
|
|
timer_conf.freq_hz = xclk_freq_hz;
|
||
|
|
timer_conf.speed_mode = LEDC_HIGH_SPEED_MODE;
|
||
|
|
#if ESP_IDF_VERSION_MAJOR >= 4
|
||
|
|
timer_conf.clk_cfg = LEDC_AUTO_CLK;
|
||
|
|
#endif
|
||
|
|
timer_conf.timer_num = (ledc_timer_t)ledc_timer;
|
||
|
|
esp_err_t err = ledc_timer_config(&timer_conf);
|
||
|
|
if (err != ESP_OK) {
|
||
|
|
ESP_LOGE(TAG, "ledc_timer_config failed for freq %d, rc=%x", xclk_freq_hz, err);
|
||
|
|
}
|
||
|
|
return err;
|
||
|
|
}
|
||
|
|
|
||
|
|
esp_err_t camera_enable_out_clock(camera_config_t* config)
|
||
|
|
{
|
||
|
|
periph_module_enable(PERIPH_LEDC_MODULE);
|
||
|
|
|
||
|
|
esp_err_t err = xclk_timer_conf(config->ledc_timer, config->xclk_freq_hz);
|
||
|
|
if (err != ESP_OK) {
|
||
|
|
ESP_LOGE(TAG, "ledc_timer_config failed, rc=%x", err);
|
||
|
|
return err;
|
||
|
|
}
|
||
|
|
|
||
|
|
ledc_channel_config_t ch_conf;
|
||
|
|
ch_conf.gpio_num = config->pin_xclk;
|
||
|
|
ch_conf.speed_mode = LEDC_HIGH_SPEED_MODE;
|
||
|
|
ch_conf.channel = config->ledc_channel;
|
||
|
|
ch_conf.intr_type = LEDC_INTR_DISABLE;
|
||
|
|
ch_conf.timer_sel = config->ledc_timer;
|
||
|
|
ch_conf.duty = 2;
|
||
|
|
ch_conf.hpoint = 0;
|
||
|
|
err = ledc_channel_config(&ch_conf);
|
||
|
|
if (err != ESP_OK) {
|
||
|
|
ESP_LOGE(TAG, "ledc_channel_config failed, rc=%x", err);
|
||
|
|
return err;
|
||
|
|
}
|
||
|
|
return ESP_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
void camera_disable_out_clock()
|
||
|
|
{
|
||
|
|
periph_module_disable(PERIPH_LEDC_MODULE);
|
||
|
|
}
|