Diff: TARGET_SDT51822B/TOOLCHAIN_IAR/nrf_wdt.h

Revision:

171:3a7713b1edbc

Parent:

169:a7c7b631e539

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/TARGET_SDT51822B/TOOLCHAIN_IAR/nrf_wdt.h	Thu Nov 08 11:45:42 2018 +0000
@@ -0,0 +1,326 @@
+/* 
+ * Copyright (c) 2015 Nordic Semiconductor ASA
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ * 
+ *   1. Redistributions of source code must retain the above copyright notice, this list 
+ *      of conditions and the following disclaimer.
+ *
+ *   2. Redistributions in binary form, except as embedded into a Nordic Semiconductor ASA 
+ *      integrated circuit in a product or a software update for such product, must reproduce 
+ *      the above copyright notice, this list of conditions and the following disclaimer in 
+ *      the documentation and/or other materials provided with the distribution.
+ *
+ *   3. Neither the name of Nordic Semiconductor ASA nor the names of its contributors may be 
+ *      used to endorse or promote products derived from this software without specific prior 
+ *      written permission.
+ *
+ *   4. This software, with or without modification, must only be used with a 
+ *      Nordic Semiconductor ASA integrated circuit.
+ *
+ *   5. Any software provided in binary or object form under this license must not be reverse 
+ *      engineered, decompiled, modified and/or disassembled. 
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * 
+ */
+
+
+/**
+ * @defgroup nrf_wdt_hal WDT HAL
+ * @{
+ * @ingroup nrf_wdt
+ *
+ * @brief Hardware access layer for accessing the watchdog timer (WDT) peripheral.
+ */
+
+#ifndef NRF_WDT_H__
+#define NRF_WDT_H__
+
+#include <stddef.h>
+#include <stdbool.h>
+#include <stdint.h>
+
+#include "nrf.h"
+
+#define NRF_WDT_CHANNEL_NUMBER 0x8UL
+#define NRF_WDT_RR_VALUE       0x6E524635UL /* Fixed value, shouldn't be modified.*/
+
+#define NRF_WDT_TASK_SET       1UL
+#define NRF_WDT_EVENT_CLEAR    0UL
+
+/**
+ * @enum nrf_wdt_task_t
+ * @brief WDT tasks.
+ */
+typedef enum
+{
+    /*lint -save -e30 -esym(628,__INTADDR__)*/
+    NRF_WDT_TASK_START = offsetof(NRF_WDT_Type, TASKS_START), /**< Task for starting WDT. */
+    /*lint -restore*/
+} nrf_wdt_task_t;
+
+/**
+ * @enum nrf_wdt_event_t
+ * @brief WDT events.
+ */
+typedef enum
+{
+    /*lint -save -e30*/
+    NRF_WDT_EVENT_TIMEOUT = offsetof(NRF_WDT_Type, EVENTS_TIMEOUT), /**< Event from WDT time-out. */
+    /*lint -restore*/
+} nrf_wdt_event_t;
+
+/**
+ * @enum nrf_wdt_behaviour_t
+ * @brief WDT behavior in CPU SLEEP or HALT mode.
+ */
+typedef enum
+{
+    NRF_WDT_BEHAVIOUR_RUN_SLEEP        = WDT_CONFIG_SLEEP_Msk,                       /**< WDT will run when CPU is in SLEEP mode. */
+    NRF_WDT_BEHAVIOUR_RUN_HALT         = WDT_CONFIG_HALT_Msk,                        /**< WDT will run when CPU is in HALT mode. */
+    NRF_WDT_BEHAVIOUR_RUN_SLEEP_HALT   = WDT_CONFIG_SLEEP_Msk | WDT_CONFIG_HALT_Msk, /**< WDT will run when CPU is in SLEEP or HALT mode. */
+    NRF_WDT_BEHAVIOUR_PAUSE_SLEEP_HALT = 0,                                          /**< WDT will be paused when CPU is in SLEEP or HALT mode. */
+} nrf_wdt_behaviour_t;
+
+/**
+ * @enum nrf_wdt_rr_register_t
+ * @brief WDT reload request registers.
+ */
+typedef enum
+{
+    NRF_WDT_RR0 = 0, /**< Reload request register 0. */
+    NRF_WDT_RR1,     /**< Reload request register 1. */
+    NRF_WDT_RR2,     /**< Reload request register 2. */
+    NRF_WDT_RR3,     /**< Reload request register 3. */
+    NRF_WDT_RR4,     /**< Reload request register 4. */
+    NRF_WDT_RR5,     /**< Reload request register 5. */
+    NRF_WDT_RR6,     /**< Reload request register 6. */
+    NRF_WDT_RR7      /**< Reload request register 7. */
+} nrf_wdt_rr_register_t;
+
+/**
+ * @enum nrf_wdt_int_mask_t
+ * @brief WDT interrupts.
+ */
+typedef enum
+{
+    NRF_WDT_INT_TIMEOUT_MASK = WDT_INTENSET_TIMEOUT_Msk, /**< WDT interrupt from time-out event. */
+} nrf_wdt_int_mask_t;
+
+/**
+ * @brief Function for configuring the watchdog behavior when the CPU is sleeping or halted.
+ *
+ * @param behaviour Watchdog behavior when CPU is in SLEEP or HALT mode.
+ */
+__STATIC_INLINE void nrf_wdt_behaviour_set(nrf_wdt_behaviour_t behaviour)
+{
+    NRF_WDT->CONFIG = behaviour;
+}
+
+
+/**
+ * @brief Function for starting the watchdog.
+ *
+ * @param[in]  task             Task.
+ */
+__STATIC_INLINE void nrf_wdt_task_trigger(nrf_wdt_task_t task)
+{
+    *((volatile uint32_t *)((uint8_t *)NRF_WDT + task)) = NRF_WDT_TASK_SET;
+}
+
+
+/**
+ * @brief Function for clearing the WDT event.
+ *
+ * @param[in]  event       Event.
+ */
+__STATIC_INLINE void nrf_wdt_event_clear(nrf_wdt_event_t event)
+{
+    *((volatile uint32_t *)((uint8_t *)NRF_WDT + (uint32_t)event)) = NRF_WDT_EVENT_CLEAR;
+}
+
+
+/**
+ * @brief Function for retrieving the state of the WDT event.
+ *
+ * @param[in]  event       Event.
+ *
+ * @retval     true              If the event is set.
+ * @retval     false             If the event is not set.
+ */
+__STATIC_INLINE bool nrf_wdt_event_check(nrf_wdt_event_t event)
+{
+    return (bool)*((volatile uint32_t *)((uint8_t *)NRF_WDT + event));
+}
+
+
+/**
+ * @brief Function for enabling a specific interrupt.
+ *
+ * @param[in]  int_mask         Interrupt.
+ */
+__STATIC_INLINE void nrf_wdt_int_enable(uint32_t int_mask)
+{
+    NRF_WDT->INTENSET = int_mask;
+}
+
+
+/**
+ * @brief Function for retrieving the state of given interrupt.
+ *
+ * @param[in]  int_mask         Interrupt.
+ *
+ * @retval     true                   Interrupt is enabled.
+ * @retval     false                  Interrupt is not enabled.
+ */
+__STATIC_INLINE bool nrf_wdt_int_enable_check(uint32_t int_mask)
+{
+    return (bool)(NRF_WDT->INTENSET & int_mask);
+}
+
+
+/**
+ * @brief Function for disabling a specific interrupt.
+ *
+ * @param[in]  int_mask         Interrupt.
+ */
+__STATIC_INLINE void nrf_wdt_int_disable(uint32_t int_mask)
+{
+    NRF_WDT->INTENCLR = int_mask;
+}
+
+
+/**
+ * @brief Function for returning the address of a specific WDT task register.
+ *
+ * @param[in]  task             Task.
+ */
+__STATIC_INLINE uint32_t nrf_wdt_task_address_get(nrf_wdt_task_t task)
+{
+    return ((uint32_t)NRF_WDT + task);
+}
+
+
+/**
+ * @brief Function for returning the address of a specific WDT event register.
+ *
+ * @param[in]  event       Event.
+ *
+ * @retval     address of requested event register
+ */
+__STATIC_INLINE uint32_t nrf_wdt_event_address_get(nrf_wdt_event_t event)
+{
+    return ((uint32_t)NRF_WDT + event);
+}
+
+
+/**
+ * @brief Function for retrieving the watchdog status.
+ *
+ * @retval     true             If the watchdog is started.
+ * @retval     false            If the watchdog is not started.
+ */
+__STATIC_INLINE bool nrf_wdt_started(void)
+{
+    return (bool)(NRF_WDT->RUNSTATUS);
+}
+
+
+/**
+ * @brief Function for retrieving the watchdog reload request status.
+ *
+ * @param[in]  rr_register      Reload request register to check.
+ *
+ * @retval     true             If a reload request is running.
+ * @retval     false            If no reload request is running.
+ */
+__STATIC_INLINE bool nrf_wdt_request_status(nrf_wdt_rr_register_t rr_register)
+{
+    return (bool)(((NRF_WDT->REQSTATUS) >> rr_register) & 0x1UL);
+}
+
+
+/**
+ * @brief Function for setting the watchdog reload value.
+ *
+ * @param[in]  reload_value     Watchdog counter initial value.
+ */
+__STATIC_INLINE void nrf_wdt_reload_value_set(uint32_t reload_value)
+{
+    NRF_WDT->CRV = reload_value;
+}
+
+
+/**
+ * @brief Function for retrieving the watchdog reload value.
+ *
+ * @retval                      Reload value.
+ */
+__STATIC_INLINE uint32_t nrf_wdt_reload_value_get(void)
+{
+    return (uint32_t)NRF_WDT->CRV;
+}
+
+
+/**
+ * @brief Function for enabling a specific reload request register.
+ *
+ * @param[in]  rr_register       Reload request register to enable.
+ */
+__STATIC_INLINE void nrf_wdt_reload_request_enable(nrf_wdt_rr_register_t rr_register)
+{
+    NRF_WDT->RREN |= 0x1UL << rr_register;
+}
+
+
+/**
+ * @brief Function for disabling a specific reload request register.
+ *
+ * @param[in]  rr_register       Reload request register to disable.
+ */
+__STATIC_INLINE void nrf_wdt_reload_request_disable(nrf_wdt_rr_register_t rr_register)
+{
+    NRF_WDT->RREN &= ~(0x1UL << rr_register);
+}
+
+
+/**
+ * @brief Function for retrieving the status of a specific reload request register.
+ *
+ * @param[in]  rr_register       Reload request register to check.
+ *
+ * @retval     true              If the reload request register is enabled.
+ * @retval     false             If the reload request register is not enabled.
+ */
+__STATIC_INLINE bool nrf_wdt_reload_request_is_enabled(nrf_wdt_rr_register_t rr_register)
+{
+    return (bool)(NRF_WDT->RREN & (0x1UL << rr_register));
+}
+
+
+/**
+ * @brief Function for setting a specific reload request register.
+ *
+ * @param[in]  rr_register       Reload request register to set.
+ */
+__STATIC_INLINE void nrf_wdt_reload_request_set(nrf_wdt_rr_register_t rr_register)
+{
+    NRF_WDT->RR[rr_register] = NRF_WDT_RR_VALUE;
+}
+
+
+#endif
+
+/** @} */