init

2025-04-29 21:38:06 +02:00
commit 7acfb06d42
122 changed files with 27389 additions and 0 deletions
--- a/managed_components/espressif__esp32-camera/target/xclk.c
+++ b/managed_components/espressif__esp32-camera/target/xclk.c
@@ -0,0 +1,72 @@
+#include "driver/gpio.h"
+#include "driver/ledc.h"
+#include "esp_err.h"
+#include "esp_log.h"
+#include "esp_system.h"
+#include "xclk.h"
+#include "esp_camera.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
+
+#define NO_CAMERA_LEDC_CHANNEL 0xFF
+static ledc_channel_t g_ledc_channel = NO_CAMERA_LEDC_CHANNEL;
+
+esp_err_t xclk_timer_conf(int ledc_timer, int xclk_freq_hz)
+{
+    ledc_timer_config_t timer_conf;
+    timer_conf.duty_resolution = LEDC_TIMER_1_BIT;
+    timer_conf.freq_hz = xclk_freq_hz;
+    timer_conf.speed_mode = LEDC_LOW_SPEED_MODE;
+
+#if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(5, 2, 0)   
+    timer_conf.deconfigure = false;
+#endif
+   
+#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(const camera_config_t* config)
+{
+    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;
+    }
+
+    g_ledc_channel = config->ledc_channel;
+    ledc_channel_config_t ch_conf = {0};
+    ch_conf.gpio_num = config->pin_xclk;
+    ch_conf.speed_mode = LEDC_LOW_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 = 1;
+    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()
+{
+    if (g_ledc_channel != NO_CAMERA_LEDC_CHANNEL) {
+        ledc_stop(LEDC_LOW_SPEED_MODE, g_ledc_channel, 0);
+        g_ledc_channel = NO_CAMERA_LEDC_CHANNEL;
+    }
+}