Diff: mbed-os/hal/lp_ticker_api.h

Revision:

0:e056ac8fecf8

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-os/hal/lp_ticker_api.h	Tue Mar 13 07:17:50 2018 +0000
@@ -0,0 +1,112 @@
+
+/** \addtogroup hal */
+/** @{*/
+/* mbed Microcontroller Library
+ * Copyright (c) 2015 ARM Limited
+ *
+ * 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.
+ */
+#ifndef MBED_LPTICKER_API_H
+#define MBED_LPTICKER_API_H
+
+#include "device.h"
+
+#if DEVICE_LOWPOWERTIMER
+
+#include "hal/ticker_api.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \defgroup hal_LpTicker Low Power Ticker Functions
+ * @{
+ */
+
+typedef void (*ticker_irq_handler_type)(const ticker_data_t *const);
+
+/** Set low power ticker IRQ handler
+ *
+ * @param ticker_irq_handler IRQ handler to be connected
+ *
+ * @return previous ticker IRQ handler
+ *
+ * @note by default IRQ handler is set to ticker_irq_handler()
+ * @note this function is primarily for testing purposes and it's not required part of HAL implementation
+ *
+ */
+ticker_irq_handler_type set_lp_ticker_irq_handler(ticker_irq_handler_type ticker_irq_handler);
+
+/** Get low power ticker's data
+ *
+ * @return The low power ticker data
+ */
+const ticker_data_t* get_lp_ticker_data(void);
+
+/** The wrapper for ticker_irq_handler, to pass lp ticker's data
+ *
+ */
+void lp_ticker_irq_handler(void);
+
+/* HAL lp ticker */
+
+/** Initialize the low power ticker
+ *
+ */
+void lp_ticker_init(void);
+
+/** Read the current counter
+ *
+ * @return The current timer's counter value in microseconds
+ */
+uint32_t lp_ticker_read(void);
+
+/** Set interrupt for specified timestamp
+ *
+ * @param timestamp The time in microseconds to be set
+ */
+void lp_ticker_set_interrupt(timestamp_t timestamp);
+
+/** Disable low power ticker interrupt
+ *
+ */
+void lp_ticker_disable_interrupt(void);
+
+/** Clear the low power ticker interrupt
+ *
+ */
+void lp_ticker_clear_interrupt(void);
+
+/** Set pending interrupt that should be fired right away.
+ * 
+ * The ticker should be initialized prior calling this function.
+ */
+void lp_ticker_fire_interrupt(void);
+
+/** Get frequency and counter bits of this ticker.
+ *
+ */
+const ticker_info_t* lp_ticker_get_info(void);
+
+/**@}*/
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
+#endif
+
+/** @}*/