76 lines
1.7 KiB
C
76 lines
1.7 KiB
C
/*
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* Copyright (c) 2019 Winner Microelectronics 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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* 2018-11-9 fanwenl 1st version
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*/
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#include <rtdevice.h>
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#include "wm_watchdog.h"
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#ifdef BSP_USING_WDT
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static rt_err_t wm_wdg_init(rt_watchdog_t *wdt)
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{
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/*init for 10S*/
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tls_watchdog_init(1000000);
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tls_watchdog_stop();
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return RT_EOK;
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}
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static rt_err_t wm_wdg_control(rt_watchdog_t *wdt, int cmd, void *arg)
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{
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uint64_t timeout_us = 0;
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switch (cmd)
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{
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case RT_DEVICE_CTRL_WDT_SET_TIMEOUT:
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timeout_us = *((rt_uint32_t *)arg) * 1000000;
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if (timeout_us >= 0xFFFFFFFF)
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timeout_us = 0xFFFFFFFF;
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tls_watchdog_set_timeout((rt_uint32_t)timeout_us);
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break;
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case RT_DEVICE_CTRL_WDT_GET_TIMEOUT:
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timeout_us = tls_watchdog_get_timeout();
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*((rt_uint32_t *)arg) = timeout_us / 1000000;
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break;
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case RT_DEVICE_CTRL_WDT_GET_TIMELEFT:
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timeout_us = tls_watchdog_get_timeleft();
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*((rt_uint32_t *)arg) = timeout_us / 1000000;
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break;
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case RT_DEVICE_CTRL_WDT_KEEPALIVE:
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tls_watchdog_clr();
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break;
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case RT_DEVICE_CTRL_WDT_START:
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tls_watchdog_start();
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break;
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case RT_DEVICE_CTRL_WDT_STOP:
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tls_watchdog_stop();
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break;
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default:
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return RT_EIO;
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}
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return RT_EOK;
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}
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static const struct rt_watchdog_ops wm_wdg_pos =
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{
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wm_wdg_init,
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wm_wdg_control,
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};
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static rt_watchdog_t wm_wdg;
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int wm_hw_wdg_init(void)
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{
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wm_wdg.ops = &wm_wdg_pos;
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rt_hw_watchdog_register(&wm_wdg, "wdg", 0, RT_NULL);
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return RT_EOK;
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}
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INIT_DEVICE_EXPORT(wm_hw_wdg_init);
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#endif /*BSP_USING_WDT */
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