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Diffstat (limited to 'c/src/lib/libbsp/arm/atsam/libraries/libchip/source/wdt.c')
| -rw-r--r-- | c/src/lib/libbsp/arm/atsam/libraries/libchip/source/wdt.c | 133 |
1 files changed, 0 insertions, 133 deletions
diff --git a/c/src/lib/libbsp/arm/atsam/libraries/libchip/source/wdt.c b/c/src/lib/libbsp/arm/atsam/libraries/libchip/source/wdt.c deleted file mode 100644 index e0ced522e2..0000000000 --- a/c/src/lib/libbsp/arm/atsam/libraries/libchip/source/wdt.c +++ /dev/null @@ -1,133 +0,0 @@ -/* ---------------------------------------------------------------------------- */ -/* Atmel Microcontroller Software Support */ -/* SAM Software Package License */ -/* ---------------------------------------------------------------------------- */ -/* Copyright (c) 2015, Atmel Corporation */ -/* */ -/* All rights reserved. */ -/* */ -/* Redistribution and use in source and binary forms, with or without */ -/* modification, are permitted provided that the following condition is met: */ -/* */ -/* - Redistributions of source code must retain the above copyright notice, */ -/* this list of conditions and the disclaimer below. */ -/* */ -/* Atmel's name may not be used to endorse or promote products derived from */ -/* this software without specific prior written permission. */ -/* */ -/* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR */ -/* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF */ -/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE */ -/* DISCLAIMED. IN NO EVENT SHALL ATMEL 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. */ -/* ---------------------------------------------------------------------------- */ - -/** - * \file - * - * Implementation of Watchdog Timer (WDT) controller. - * - */ - -/** \addtogroup wdt_module Working with WDT - * \ingroup peripherals_module - * The WDT driver provides the interface to configure and use the WDT - * peripheral. - * - * The WDT can be used to prevent system lock-up if the software becomes - * trapped in a deadlock. It can generate a general reset or a processor - * reset only. It is clocked by slow clock divided by 128. - * - * The WDT is running at reset with 16 seconds watchdog period (slow clock at - * 32.768 kHz) - * and external reset generation enabled. The user must either disable it or - * reprogram it to meet the application requires. - * - * To use the WDT, the user could follow these few steps: - * <ul> - * <li>Enable watchdog with given mode using \ref WDT_Enable(). - * <li>Restart the watchdog using \ref WDT_Restart() within the watchdog period. - * </ul> - * - * For more accurate information, please look at the WDT section of the - * Datasheet. - * - * \note - * The Watchdog Mode Register (WDT_MR) can be written only once.\n - * - * Related files :\n - * \ref wdt.c\n - * \ref wdt.h.\n - */ -/*@{*/ -/*@}*/ - -/*--------------------------------------------------------------------------- - * Headers - *---------------------------------------------------------------------------*/ - -#include "chip.h" - -#include <stdint.h> - -/*---------------------------------------------------------------------------- - * Exported functions - *----------------------------------------------------------------------------*/ - -/** - * \brief Enable watchdog with given mode. - * - * \note The Watchdog Mode Register (WDT_MR) can be written only once. - * Only a processor reset resets it. - * - * \param dwMode WDT mode to be set - */ -extern void WDT_Enable(Wdt *pWDT, uint32_t dwMode) -{ - pWDT->WDT_MR = dwMode; -} - -/** - * \brief Disable watchdog. - * - * \note The Watchdog Mode Register (WDT_MR) can be written only once. - * Only a processor reset resets it. - */ -extern void WDT_Disable(Wdt *pWDT) -{ - pWDT->WDT_MR = WDT_MR_WDDIS; -} - -/** - * \brief Watchdog restart. - */ -extern void WDT_Restart(Wdt *pWDT) -{ - pWDT->WDT_CR = 0xA5000001; -} - -/** - * \brief Watchdog get status. - */ -extern uint32_t WDT_GetStatus(Wdt *pWDT) -{ - return (pWDT->WDT_SR & 0x3); -} - -/** - * \brief Watchdog get period. - * - * \param dwMs desired watchdog period in millisecond. - */ -extern uint32_t WDT_GetPeriod(uint32_t dwMs) -{ - if ((dwMs < 4) || (dwMs > 16000)) - return 0; - - return ((dwMs << 8) / 1000); -} |