feat(lp-core): added support for using ETM events as wake-up source

components/hal/esp32c5/include/hal/lp_aon_ll.h

@@ -92,6 +92,24 @@ static inline void lp_aon_ll_inform_wakeup_type(bool dslp)
     }
 }
 
+/**
+ * @brief Get the flag that marks whether LP CPU is awakened by ETM
+ *
+ * @return Return true if lpcore is woken up by soc_etm
+ */
+static inline bool lp_aon_ll_get_lpcore_etm_wakeup_flag(void)
+{
+    return REG_GET_BIT(LP_AON_LPCORE_REG, LP_AON_LPCORE_ETM_WAKEUP_FLAG);
+}
+
+/**
+ * @brief Clear the flag that marks whether LP CPU is awakened by soc_etm
+ */
+static inline void lp_aon_ll_clear_lpcore_etm_wakeup_flag(void)
+{
+    REG_SET_BIT(LP_AON_LPCORE_REG, LP_AON_LPCORE_ETM_WAKEUP_FLAG_CLR);
+}
+
 #ifdef __cplusplus
 }
 #endif

components/hal/esp32p4/include/hal/lp_core_ll.h

@@ -148,6 +148,15 @@ static inline void lp_core_ll_request_sleep(void)
     PMU.lp_ext.pwr1.sleep_req = 1;
 }
 
+/**
+ * @brief Clear the ETM wakeup interrupt sources on the LP core
+ *
+ */
+static inline void lp_core_ll_clear_etm_wakeup_status(void)
+{
+    LP_SYS.sys_ctrl.lp_core_etm_wakeup_flag_clr = 1;
+}
+
 #ifdef __cplusplus
 }
 #endif

components/hal/include/hal/lp_core_types.h

@@ -0,0 +1,41 @@
+/*
+ * SPDX-FileCopyrightText: 2024 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#pragma once
+
+#include "soc/soc_caps.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if SOC_LP_CORE_SUPPORTED
+
+#if SOC_LP_CORE_SUPPORT_ETM
+/**
+ * @brief LP-Core event types enum
+ */
+typedef enum {
+    LP_CORE_EVENT_ERR_INTR,     /*!< Exception triggered on LP-Core */
+    LP_CORE_EVENT_START_INTR,   /*!< LP-Core clock has been turned on */
+    LP_CORE_EVENT_MAX,          /*!< Maximum number of LP-Core events */
+} lp_core_etm_event_type_t;
+
+/**
+ * @brief LP-Core task types enum
+ */
+typedef enum {
+    LP_CORE_TASK_WAKEUP_CPU,         /*!< LP-Core wake-up task */
+    LP_CORE_TASK_MAX,                /*!< Maximum number of LP-Core tasks */
+} lp_core_etm_task_type_t;
+
+#endif //SOC_LP_CORE_SUPPORT_ETM
+
+#endif //SOC_LP_CORE_SUPPORTED
+
+#ifdef __cplusplus
+}
+#endif