66 lines
2.1 KiB
C
66 lines
2.1 KiB
C
/*
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* This file is part of FH8620 BSP for RT-Thread distribution.
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*
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* Copyright (c) 2016 Shanghai Fullhan Microelectronics Co., Ltd.
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* All rights reserved
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Visit http://www.fullhan.com to get contact with Fullhan.
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*
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* Change Logs:
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* Date Author Notes
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*/
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#ifndef FH_WDT_H_
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#define FH_WDT_H_
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#include "fh_def.h"
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#define WDOG_CONTROL_REG_OFFSET 0x00
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#define WDOG_CONTROL_REG_WDT_EN_MASK 0x01
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#define WDOG_CONTROL_REG_RMOD_MASK 0x02
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#define WDOG_TIMEOUT_RANGE_REG_OFFSET 0x04
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#define WDOG_CURRENT_COUNT_REG_OFFSET 0x08
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#define WDOG_COUNTER_RESTART_REG_OFFSET 0x0c
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#define WDOG_COUNTER_RESTART_KICK_VALUE 0x76
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/* Hardware timeout in seconds */
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#define WDT_HW_TIMEOUT 2
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/* User land timeout */
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#define WDT_HEARTBEAT 15
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/* The maximum TOP (timeout period) value that can be set in the watchdog. */
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#define FH_WDT_MAX_TOP 15
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#define WDT_TIMEOUT (HZ / 2)
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struct fh_wdt_obj
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{
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int id;
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int irq;
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unsigned int base;
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};
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void WDT_Enable(struct fh_wdt_obj *wdt_obj, int enable);
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inline int WDT_IsEnable(struct fh_wdt_obj *wdt_obj);
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void WDT_SetTopValue(struct fh_wdt_obj *wdt_obj, int top);
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void WDT_SetCtrl(struct fh_wdt_obj *wdt_obj, UINT32 reg);
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void WDT_Kick(struct fh_wdt_obj *wdt_obj);
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unsigned int WDT_GetCurrCount(struct fh_wdt_obj *wdt_obj);
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#endif /* FH_WDT_H_ */
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