feat: supports lp uart wakeup

components/ulp/lp_core/shared/include/ulp_lp_core_lp_uart_shared.h

@@ -0,0 +1,41 @@
+/*
+ * SPDX-FileCopyrightText: 2024 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+#pragma once
+
+#include "esp_err.h"
+#include "soc/soc_caps.h"
+#include "driver/uart_wakeup.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @brief Initialize and configure the LP UART wakeup mode.
+ *
+ * @note This function configures the LP UART wakeup mode. Ensure that the UART has already been initialized
+ *       with the lp_core_uart_init() call.
+ *       Once the LP Core wakes up due to the LP UART, the wakeup feature is disabled.
+ *       To re-enable the wakeup from the LP UART, you must call
+ *       ulp_lp_core_lp_uart_reset_wakeup_en() again before the LP core goes to sleep.
+ *       Also be aware of limitations in different modes mentioned in the uart_wakeup_cfg_t struct.
+ *
+ *
+ * @param cfg    Configuration for LP UART wakeup mode.
+ * @return esp_err_t    ESP_OK when successful
+ */
+esp_err_t lp_core_uart_wakeup_setup(const uart_wakeup_cfg_t *cfg);
+
+/**
+ * @brief Clear LP UART rx tx buffer.
+ *
+ * @note Clear LP UART rx tx buffer.
+ */
+void lp_core_uart_clear_buf(void);
+
+#ifdef __cplusplus
+}
+#endif