96 lines
2.4 KiB
C
96 lines
2.4 KiB
C
/*
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* Copyright (c) 2006-2022, 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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* 2023-03-14 wcx1024979076 first version
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*/
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#include "drv_wdt.h"
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#ifdef BSP_USING_WDT
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#define DBG_LEVEL DBG_LOG
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#include <rtdbg.h>
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#define LOG_TAG "DRV.WDT"
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struct rt_watchdog_device wdt_device;
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static rt_err_t _wdt_configure(rt_watchdog_t *wdt_device)
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{
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struct bflb_device_s* wdt = bflb_device_get_by_name("watchdog");
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struct bflb_wdg_config_s wdg_cfg;
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wdg_cfg.clock_source = BFLB_SYSTEM_XCLK;
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wdg_cfg.clock_div = 40;
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wdg_cfg.comp_val = 10000000;
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wdg_cfg.mode = WDG_MODE_RESET;
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bflb_wdg_init(wdt, &wdg_cfg);
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return RT_EOK;
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}
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static rt_err_t _wdt_control(rt_watchdog_t *wdt_device, int cmd, void *arg)
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{
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RT_ASSERT(wdt_device != RT_NULL);
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struct bflb_device_s* wdt = bflb_device_get_by_name("watchdog");
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struct bflb_wdg_config_s wdg_cfg;
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switch (cmd)
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{
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case RT_DEVICE_CTRL_WDT_KEEPALIVE:
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bflb_wdg_reset_countervalue(wdt);
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break;
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case RT_DEVICE_CTRL_WDT_SET_TIMEOUT:
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wdg_cfg.clock_source = BFLB_SYSTEM_XCLK;
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wdg_cfg.clock_div = 40;
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wdg_cfg.comp_val = 10000000 * (*(rt_uint32_t *)arg);
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wdg_cfg.mode = WDG_MODE_RESET;
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bflb_wdg_init(wdt, &wdg_cfg);
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bflb_wdg_start(wdt);
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wdt_device->parent.user_data = (rt_uint32_t)(*(rt_uint32_t *)arg);
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break;
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case RT_DEVICE_CTRL_WDT_GET_TIMEOUT:
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*(rt_uint32_t *)arg = (rt_uint32_t)wdt_device->parent.user_data;
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break;
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case RT_DEVICE_CTRL_WDT_GET_TIMELEFT:
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*(rt_uint32_t *)arg = bflb_wdg_get_countervalue(wdt) / 10000000;
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break;
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case RT_DEVICE_CTRL_WDT_START:
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bflb_wdg_start(wdt);
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break;
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case RT_DEVICE_CTRL_WDT_STOP:
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bflb_wdg_stop(wdt);
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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_EINVAL;
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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 _wdt_ops =
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{
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.init = _wdt_configure,
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.control = _wdt_control
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};
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int rt_hw_wdt_init(void)
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{
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int result = RT_EOK;
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wdt_device.ops = &_wdt_ops;
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result = rt_hw_watchdog_register(&wdt_device, "wdt", RT_DEVICE_FLAG_RDWR, RT_NULL);
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if(result != RT_EOK)
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{
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LOG_E("wdt device register fail.");
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}
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return result;
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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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