esp_common: move some headers

components/esp_system/include/esp_private/system_internal.h

@@ -0,0 +1,81 @@
+// Copyright 2018 Espressif Systems (Shanghai) PTE LTD
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#pragma once
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "esp_system.h"
+
+#define MWDT0_TICK_PRESCALER    40000
+#define MWDT0_TICKS_PER_US      500
+#define MWDT1_TICK_PRESCALER    40000
+#define MWDT1_TICKS_PER_US      500
+
+/**
+ * @brief  Internal function to restart PRO and APP CPUs.
+ *
+ * @note This function should not be called from FreeRTOS applications.
+ *       Use esp_restart instead.
+ *
+ * This is an internal function called by esp_restart. It is called directly
+ * by the panic handler and brownout detector interrupt.
+ */
+void esp_restart_noos(void) __attribute__ ((noreturn));
+
+/**
+ * @brief Similar to esp_restart_noos, but resets all the digital peripherals.
+ */
+void esp_restart_noos_dig(void) __attribute__ ((noreturn));
+
+/**
+ * @brief  Internal function to set reset reason hint
+ *
+ * The hint is used do distinguish different reset reasons when software reset
+ * is performed.
+ *
+ * The hint is stored in RTC store register, RTC_RESET_CAUSE_REG.
+ *
+ * @param hint  Desired esp_reset_reason_t value for the real reset reason
+ */
+void esp_reset_reason_set_hint(esp_reset_reason_t hint);
+
+/**
+ * @brief  Internal function to get the reset hint value
+ * @return  - Reset hint value previously stored into RTC_RESET_CAUSE_REG using
+ *          esp_reset_reason_set_hint function
+ *          - ESP_RST_UNKNOWN if the value in RTC_RESET_CAUSE_REG is invalid
+ */
+esp_reset_reason_t esp_reset_reason_get_hint(void);
+
+
+/**
+ * @brief Get the time in microseconds since startup
+ *
+ * @returns time since startup in microseconds
+ */
+int64_t esp_system_get_time(void);
+
+/**
+ * @brief Get the resolution of the time returned by `esp_system_get_time`.
+ *
+ * @returns the resolution in nanoseconds
+ */
+uint32_t esp_system_get_time_resolution(void);
+
+#ifdef __cplusplus
+}
+#endif