89 lines
2.1 KiB
C
89 lines
2.1 KiB
C
/*
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* Copyright (c) 2006-2018, Synwit Technology Co.,Ltd.
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2018-12-10 Zohar_Lee first version
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* 2020-07-10 lik format file
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*/
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#include "drv_wdt.h"
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#ifdef RT_USING_WDT
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#ifdef BSP_USING_WDT
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//#define DRV_DEBUG
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#define LOG_TAG "drv.wdt"
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#include <drv_log.h>
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static struct swm_wdt_cfg wdt_cfg =
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{
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.name = "wdt",
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.WDTx = WDT,
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};
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static struct swm_wdt wdt_drv;
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static rt_err_t swm_wdt_init(rt_watchdog_t *wdt_device)
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{
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return RT_EOK;
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}
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static rt_err_t swm_wdt_control(rt_watchdog_t *wdt_device, int cmd, void *arg)
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{
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struct swm_wdt_cfg *cfg;
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RT_ASSERT(wdt_device != RT_NULL);
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cfg = wdt_device->parent.user_data;
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switch (cmd)
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{
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case RT_DEVICE_CTRL_WDT_KEEPALIVE:
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WDT_Feed(cfg->WDTx);
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break;
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case RT_DEVICE_CTRL_WDT_SET_TIMEOUT:
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WDT_Init(cfg->WDTx, (SystemCoreClock * (*(rt_uint32_t *)arg)), WDT_MODE_RESET);
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break;
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case RT_DEVICE_CTRL_WDT_GET_TIMEOUT:
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*(rt_uint32_t *)arg = (cfg->WDTx->LOAD) / SystemCoreClock;
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break;
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case RT_DEVICE_CTRL_WDT_GET_TIMELEFT:
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*(rt_uint32_t *)arg = WDT_GetValue(cfg->WDTx) / SystemCoreClock;
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break;
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case RT_DEVICE_CTRL_WDT_START:
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WDT_Start(cfg->WDTx);
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break;
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case RT_DEVICE_CTRL_WDT_STOP:
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WDT_Stop(cfg->WDTx);
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break;
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default:
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LOG_W("This command is not supported.");
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return -RT_ERROR;
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}
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return RT_EOK;
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}
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const static struct rt_watchdog_ops swm_wdt_ops =
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{
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swm_wdt_init,
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swm_wdt_control};
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int rt_hw_wdt_init(void)
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{
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wdt_drv.cfg = &wdt_cfg;
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wdt_drv.wdt_device.ops = &swm_wdt_ops;
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if (rt_hw_watchdog_register(&wdt_drv.wdt_device, wdt_drv.cfg->name, RT_DEVICE_FLAG_RDWR, wdt_drv.cfg) != RT_EOK)
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{
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LOG_E("wdt device register failed.");
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return -RT_ERROR;
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}
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LOG_D("wdt device register success.");
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return RT_EOK;
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}
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INIT_BOARD_EXPORT(rt_hw_wdt_init);
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#endif /* BSP_USING_WDT */
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#endif /* RT_USING_WDT */
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