146 lines
4.9 KiB
C
146 lines
4.9 KiB
C
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//*****************************************************************************
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// wdt_if.c
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//
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// watchdog timer interface APIs
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//
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// Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com/
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//
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions
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// are met:
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//
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// Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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//
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// Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the
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// distribution.
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//
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// Neither the name of Texas Instruments Incorporated nor the names of
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// its contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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//*****************************************************************************
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#include <stdio.h>
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#include "hw_types.h"
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#include "hw_ints.h"
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#include "hw_memmap.h"
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#include "prcm.h"
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#include "wdt.h"
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#include "rom.h"
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#include "rom_map.h"
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#include "interrupt.h"
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#include "wdt_if.h"
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#if defined(USE_TIRTOS) || defined(USE_FREERTOS) || defined(SL_PLATFORM_MULTI_THREADED)
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#include "osi.h"
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#endif
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/****************************************************************************/
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/* FUNCTION DEFINITIONS */
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/****************************************************************************/
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//****************************************************************************
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//
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//! Initialize the watchdog timer
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//!
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//! \param fpAppWDTCB is the WDT interrupt handler to be registered
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//! \param uiReloadVal is the reload value to be set to the WDT
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//!
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//! This function
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//! 1. Initializes the WDT
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//!
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//! \return None.
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//
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//****************************************************************************
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void WDT_IF_Init(fAPPWDTDevCallbk fpAppWDTCB,
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unsigned int uiReloadVal)
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{
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//
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// Enable the peripherals used by this example.
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//
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MAP_PRCMPeripheralClkEnable(PRCM_WDT, PRCM_RUN_MODE_CLK);
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//
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// Unlock to be able to configure the registers
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//
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MAP_WatchdogUnlock(WDT_BASE);
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if(fpAppWDTCB != NULL)
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{
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#if defined(USE_TIRTOS) || defined(USE_FREERTOS) || defined(SL_PLATFORM_MULTI_THREADED)
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// USE_TIRTOS: if app uses TI-RTOS (either networking/non-networking)
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// USE_FREERTOS: if app uses Free-RTOS (either networking/non-networking)
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// SL_PLATFORM_MULTI_THREADED: if app uses any OS + networking(simplelink)
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osi_InterruptRegister(INT_WDT, fpAppWDTCB, INT_PRIORITY_LVL_1);
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#else
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MAP_IntPrioritySet(INT_WDT, INT_PRIORITY_LVL_1);
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MAP_WatchdogIntRegister(WDT_BASE,fpAppWDTCB);
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#endif
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}
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//
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// Set the watchdog timer reload value
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//
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MAP_WatchdogReloadSet(WDT_BASE,uiReloadVal);
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//
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// Start the timer. Once the timer is started, it cannot be disable.
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//
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MAP_WatchdogEnable(WDT_BASE);
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}
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//****************************************************************************
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//
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//! DeInitialize the watchdog timer
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//!
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//! \param None
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//!
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//! This function
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//! 1. DeInitializes the WDT
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//!
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//! \return None.
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//
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//****************************************************************************
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void WDT_IF_DeInit()
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{
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//
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// Unlock to be able to configure the registers
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//
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MAP_WatchdogUnlock(WDT_BASE);
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//
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// Disable stalling of the watchdog timer during debug events
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//
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MAP_WatchdogStallDisable(WDT_BASE);
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//
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// Clear the interrupt
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//
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MAP_WatchdogIntClear(WDT_BASE);
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//
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// Unregister the interrupt
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//
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MAP_WatchdogIntUnregister(WDT_BASE);
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}
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//*****************************************************************************
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//
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// Close the Doxygen group.
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//! @}
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//
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//*****************************************************************************
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