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218
targets/TARGET_Maxim/TARGET_MAX32620C/mxc/wdt2.h
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218
targets/TARGET_Maxim/TARGET_MAX32620C/mxc/wdt2.h
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/**
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* @file
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* @brief WDT2 peripheral module API.
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*/
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/* ****************************************************************************
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* Copyright (C) 2016 Maxim Integrated Products, Inc., All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
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* OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Except as contained in this notice, the name of Maxim Integrated
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* Products, Inc. shall not be used except as stated in the Maxim Integrated
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* Products, Inc. Branding Policy.
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*
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* The mere transfer of this software does not imply any licenses
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* of trade secrets, proprietary technology, copyrights, patents,
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* trademarks, maskwork rights, or any other form of intellectual
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* property whatsoever. Maxim Integrated Products, Inc. retains all
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* ownership rights.
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*
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* $Date: 2017-02-16 15:06:56 -0600 (Thu, 16 Feb 2017) $
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* $Revision: 26491 $
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*
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**************************************************************************** */
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/* Define to prevent redundant inclusion */
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#ifndef _WDT2_H
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#define _WDT2_H
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/* **** Includes **** */
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#include "mxc_config.h"
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#include "wdt2_regs.h"
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#include "mxc_assert.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @ingroup wdttimers
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* @defgroup wdt2 Watch Dog Timer 2
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* @brief WDT2 configuration and control API.
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* @{
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*/
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/**
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* Definition to clear all WDT2 flags
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*/
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#define WDT2_FLAGS_CLEAR_ALL (MXC_F_WDT2_FLAGS_TIMEOUT | MXC_F_WDT2_FLAGS_RESET_OUT)
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/**
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* Enumeration type to select the Watchdog Timer's Period
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*/
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typedef enum {
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WDT2_PERIOD_2_25_CLKS = MXC_V_WDT2_CTRL_INT_PERIOD_2_25_NANO_CLKS, /**< \f$ 2^{25}\f$ Nano Ring clocks. */
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WDT2_PERIOD_2_24_CLKS = MXC_V_WDT2_CTRL_INT_PERIOD_2_24_NANO_CLKS, /**< \f$ 2^{24}\f$ Nano Ring clocks. */
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WDT2_PERIOD_2_23_CLKS = MXC_V_WDT2_CTRL_INT_PERIOD_2_23_NANO_CLKS, /**< \f$ 2^{23}\f$ Nano Ring clocks. */
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WDT2_PERIOD_2_22_CLKS = MXC_V_WDT2_CTRL_INT_PERIOD_2_22_NANO_CLKS, /**< \f$ 2^{22}\f$ Nano Ring clocks. */
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WDT2_PERIOD_2_21_CLKS = MXC_V_WDT2_CTRL_INT_PERIOD_2_21_NANO_CLKS, /**< \f$ 2^{21}\f$ Nano Ring clocks. */
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WDT2_PERIOD_2_20_CLKS = MXC_V_WDT2_CTRL_INT_PERIOD_2_20_NANO_CLKS, /**< \f$ 2^{20}\f$ Nano Ring clocks. */
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WDT2_PERIOD_2_19_CLKS = MXC_V_WDT2_CTRL_INT_PERIOD_2_19_NANO_CLKS, /**< \f$ 2^{19}\f$ Nano Ring clocks. */
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WDT2_PERIOD_2_18_CLKS = MXC_V_WDT2_CTRL_INT_PERIOD_2_18_NANO_CLKS, /**< \f$ 2^{18}\f$ Nano Ring clocks. */
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WDT2_PERIOD_2_17_CLKS = MXC_V_WDT2_CTRL_INT_PERIOD_2_17_NANO_CLKS, /**< \f$ 2^{17}\f$ Nano Ring clocks. */
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WDT2_PERIOD_2_16_CLKS = MXC_V_WDT2_CTRL_INT_PERIOD_2_16_NANO_CLKS, /**< \f$ 2^{16}\f$ Nano Ring clocks. */
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WDT2_PERIOD_2_15_CLKS = MXC_V_WDT2_CTRL_INT_PERIOD_2_15_NANO_CLKS, /**< \f$ 2^{15}\f$ Nano Ring clocks. */
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WDT2_PERIOD_2_14_CLKS = MXC_V_WDT2_CTRL_INT_PERIOD_2_14_NANO_CLKS, /**< \f$ 2^{14}\f$ Nano Ring clocks. */
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WDT2_PERIOD_2_13_CLKS = MXC_V_WDT2_CTRL_INT_PERIOD_2_13_NANO_CLKS, /**< \f$ 2^{13}\f$ Nano Ring clocks. */
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WDT2_PERIOD_2_12_CLKS = MXC_V_WDT2_CTRL_INT_PERIOD_2_12_NANO_CLKS, /**< \f$ 2^{12}\f$ Nano Ring clocks. */
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WDT2_PERIOD_2_11_CLKS = MXC_V_WDT2_CTRL_INT_PERIOD_2_11_NANO_CLKS, /**< \f$ 2^{11}\f$ Nano Ring clocks. */
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WDT2_PERIOD_2_10_CLKS = MXC_V_WDT2_CTRL_INT_PERIOD_2_10_NANO_CLKS, /**< \f$ 2^{10}\f$ Nano Ring clocks. */
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WDT2_PERIOD_MAX /**< Maximum Period is Max - 1 */
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} wdt2_period_t;
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/**
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* @brief Initializes the NanoRing for the watchdog clock and sets watchdog
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* in a known disabled state
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* @param runInSleep If non-zero, the WDT2 operates in Sleep Modes for
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* the device, 0 disables the WDT2 during Sleep Modes.
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* @param unlock_key The WDT2 unlock key value, use
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* #MXC_V_WDT2_UNLOCK_KEY
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*
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* @retval #E_NO_ERROR Watchdog Timer initialized as requested
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* @retval #E_BAD_STATE Invalid unlock_key, WDT2 failed to unlock.
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*/
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int WDT2_Init(uint8_t runInSleep, uint8_t unlock_key);
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/**
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* @brief Configures and enables the wake-up timeout for the watchdog
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* specified.
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*
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* @param int_period Interrupt period.
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* @param unlock_key Key to unlock watchdog.
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*
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* @retval #E_NO_ERROR WDT2 Interrupt period enabled with the int_period
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* time.
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* @retval #E_INVALID Requested Period is greater than the maximum
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* supported
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* @retval #E_BAD_STATE Invalid unlock_key, WDT2 failed to unlock.
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*/
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int WDT2_EnableWakeUp(wdt2_period_t int_period, uint8_t unlock_key);
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/**
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* @brief Disables the interrupt timeout for the watchdog specified.
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*
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* @param unlock_key Key to unlock watchdog.
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*
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* @retval #E_NO_ERROR Wakeup disabled.
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* @retval #E_BAD_STATE Invalid unlock_key, WDT2 failed to unlock.
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*/
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int WDT2_DisableWakeUp(uint8_t unlock_key);
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/**
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* @brief Configures and enables the reset timeout for the watchdog
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* specified.
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*
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* @param rst_period Reset period.
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* @param unlock_key Key to unlock watchdog.
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*
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* @retval #E_NO_ERROR Reset timeout enabled with the rst_period time.
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* @retval #E_INVALID Requested Period is greater than the maximum
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* supported
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* @retval #E_BAD_STATE Invalid unlock_key, WDT2 failed to unlock.
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*/
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int WDT2_EnableReset(wdt2_period_t rst_period, uint8_t unlock_key);
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/**
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* @brief Disables the reset timeout for the watchdog specified.
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*
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* @param unlock_key Key to unlock watchdog.
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*
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* @retval #E_NO_ERROR Reset disabled.
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* @retval #E_BAD_STATE Invalid unlock_key, WDT2 failed to unlock.
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*/
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int WDT2_DisableReset(uint8_t unlock_key);
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/**
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* @brief Gets the watchdog flags
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*
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* @retval 0 No flags set.
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* @retval non-zero The WDT2 interrupt flags that are
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* set, see @ref WDT2_FLAGS_Register "WDT2_FLAGS
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* register".
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*/
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__STATIC_INLINE uint32_t WDT2_GetFlags(void)
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{
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return (MXC_WDT2->flags);
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}
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/**
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* @brief Clears the watchdog flags based on the @p mask.
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*
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* @param mask bits to clear
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*/
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__STATIC_INLINE void WDT2_ClearFlags(uint32_t mask)
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{
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MXC_WDT2->flags = mask;
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}
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/**
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* @brief Starts the watchdog specified.
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*
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* @param unlock_key Key to unlock watchdog.
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*
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* @retval #E_NO_ERROR WDT2 started.
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* @retval #E_BAD_STATE Invalid unlock_key, WDT2 failed to unlock.
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*/
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int WDT2_Start(uint8_t unlock_key);
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/**
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* @brief Feeds the watchdog specified.
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*
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* @retval #E_NO_ERROR WDT2 reset successfully.
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*/
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void WDT2_Reset(void);
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/**
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* @brief Stops the WatchDog Timer 2.
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*
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* @param unlock_key Key to unlock watchdog.
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*
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* @retval #E_NO_ERROR WDT2 stopped.
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* @retval #E_BAD_STATE Invalid unlock_key, WDT2 failed to unlock.
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*/
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int WDT2_Stop(uint8_t unlock_key);
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/**
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* @brief Determines if the watchdog is running
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*
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* @retval 0 Inactive
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* @retval non-zero Active
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*/
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__STATIC_INLINE int WDT2_IsActive(void)
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{
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return (!!(MXC_WDT2->ctrl & MXC_F_WDT2_CTRL_EN_TIMER));
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}
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/**@} end of group wdt2*/
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#ifdef __cplusplus
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}
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#endif
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#endif /* _WDT_H */
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