feat(isp): added isp dvp driver

components/esp_driver_cam/dvp_share_ctrl.c

@@ -0,0 +1,36 @@
+/*
+ * SPDX-FileCopyrightText: 2024 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <esp_types.h>
+#include "sdkconfig.h"
+#include "esp_log.h"
+#include "esp_err.h"
+#include "freertos/FreeRTOS.h"
+
+bool dvp_signal_used;
+static portMUX_TYPE s_spinlock = portMUX_INITIALIZER_UNLOCKED;
+
+esp_err_t dvp_shared_ctrl_claim_io_signals(void)
+{
+    esp_err_t ret = ESP_ERR_NOT_FOUND;
+    portENTER_CRITICAL(&s_spinlock);
+    if (!dvp_signal_used) {
+        dvp_signal_used = true;
+        ret = ESP_OK;
+    }
+    portEXIT_CRITICAL(&s_spinlock);
+
+    return ret;
+}
+
+esp_err_t dvp_shared_ctrl_declaim_io_signals(void)
+{
+    portENTER_CRITICAL(&s_spinlock);
+    dvp_signal_used = false;
+    portEXIT_CRITICAL(&s_spinlock);
+
+    return ESP_OK;
+}