152 lines
4.2 KiB
C
152 lines
4.2 KiB
C
/*
|
|
* Copyright (c) 2020-2021, Bluetrum Development Team
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*
|
|
* Change Logs:
|
|
* Date Author Notes
|
|
* 2020-11-30 greedyhao first version
|
|
*/
|
|
|
|
#include <board.h>
|
|
|
|
#ifdef RT_USING_WDT
|
|
|
|
#include <drv_wdt.h>
|
|
|
|
// #define DRV_DEBUG
|
|
#define LOG_TAG "drv.wdt"
|
|
#include <drv_log.h>
|
|
|
|
struct ab32_wdt_obj
|
|
{
|
|
rt_watchdog_t watchdog;
|
|
};
|
|
static struct ab32_wdt_obj ab32_wdt;
|
|
static struct rt_watchdog_ops ops;
|
|
|
|
static rt_err_t wdt_init(rt_watchdog_t *wdt)
|
|
{
|
|
return RT_EOK;
|
|
}
|
|
|
|
static rt_err_t wdt_control(rt_watchdog_t *wdt, int cmd, void *arg)
|
|
{
|
|
rt_uint32_t tmp = 0;
|
|
|
|
switch (cmd)
|
|
{
|
|
/* feed the watchdog */
|
|
case RT_DEVICE_CTRL_WDT_KEEPALIVE:
|
|
WDTCON = 0xa;
|
|
break;
|
|
/* set watchdog timeout */
|
|
case RT_DEVICE_CTRL_WDT_SET_TIMEOUT:
|
|
if (arg == RT_NULL) {
|
|
LOG_E("The watchdog timeout argument cannot be NULL!");
|
|
break;
|
|
}
|
|
|
|
tmp = WDTCON & ~(0x7 << 20);
|
|
|
|
switch (*((rt_uint32_t *)arg))
|
|
{
|
|
case AB32_WDT_TIMEOUT_1MS:
|
|
LOG_I("The watchdog timeout is set to 1ms");
|
|
tmp |= (0xa << 24) | (0x00 << 20);
|
|
break;
|
|
case AB32_WDT_TIMEOUT_256MS:
|
|
LOG_I("The watchdog timeout is set to 256ms");
|
|
tmp |= (0xa << 24) | (0x01 << 20);
|
|
break;
|
|
case AB32_WDT_TIMEOUT_512MS:
|
|
LOG_I("The watchdog timeout is set to 512ms");
|
|
tmp |= (0xa << 24) | (0x02 << 20);
|
|
break;
|
|
case AB32_WDT_TIMEOUT_1024MS:
|
|
LOG_I("The watchdog timeout is set to 1024ms");
|
|
tmp |= (0xa << 24) | (0x03 << 20);
|
|
break;
|
|
case AB32_WDT_TIMEOUT_2048MS:
|
|
LOG_I("The watchdog timeout is set to 2048ms");
|
|
tmp |= (0xa << 24) | (0x04 << 20);
|
|
break;
|
|
case AB32_WDT_TIMEOUT_4096MS:
|
|
LOG_I("The watchdog timeout is set to 4096ms");
|
|
tmp |= (0xa << 24) | (0x05 << 20);
|
|
break;
|
|
case AB32_WDT_TIMEOUT_8192MS:
|
|
LOG_I("The watchdog timeout is set to 8192ms");
|
|
tmp |= (0xa << 24) | (0x06 << 20);
|
|
break;
|
|
case AB32_WDT_TIMEOUT_16384MS:
|
|
LOG_I("The watchdog timeout is set to 16384ms");
|
|
tmp |= (0xa << 24) | (0x07 << 20);
|
|
break;
|
|
default:
|
|
LOG_W("The watchdog timeout argument range from 0 to 7!");
|
|
tmp = WDTCON;
|
|
break;
|
|
}
|
|
WDTCON = tmp;
|
|
LOG_D("WDTCON=%X", WDTCON);
|
|
break;
|
|
case RT_DEVICE_CTRL_WDT_GET_TIMEOUT:
|
|
switch ((WDTCON >> 20) & 0x7)
|
|
{
|
|
case AB32_WDT_TIMEOUT_1MS:
|
|
LOG_D("The watchdog timeout is set to 1ms");
|
|
break;
|
|
case AB32_WDT_TIMEOUT_256MS:
|
|
LOG_D("The watchdog timeout is set to 256ms");
|
|
break;
|
|
case AB32_WDT_TIMEOUT_512MS:
|
|
LOG_D("The watchdog timeout is set to 512ms");
|
|
break;
|
|
case AB32_WDT_TIMEOUT_1024MS:
|
|
LOG_D("The watchdog timeout is set to 1024ms");
|
|
break;
|
|
case AB32_WDT_TIMEOUT_2048MS:
|
|
LOG_D("The watchdog timeout is set to 2048ms");
|
|
break;
|
|
case AB32_WDT_TIMEOUT_4096MS:
|
|
LOG_D("The watchdog timeout is set to 4096ms");
|
|
break;
|
|
case AB32_WDT_TIMEOUT_8192MS:
|
|
LOG_D("The watchdog timeout is set to 8192ms");
|
|
break;
|
|
case AB32_WDT_TIMEOUT_16384MS:
|
|
LOG_D("The watchdog timeout is set to 16384ms");
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
case RT_DEVICE_CTRL_WDT_START:
|
|
WDTCON = 0x110;
|
|
break;
|
|
default:
|
|
LOG_W("This command is not supported.");
|
|
return -RT_ERROR;
|
|
}
|
|
return RT_EOK;
|
|
}
|
|
|
|
int rt_wdt_init(void)
|
|
{
|
|
ops.init = &wdt_init;
|
|
ops.control = &wdt_control;
|
|
ab32_wdt.watchdog.ops = &ops;
|
|
/* register watchdog device */
|
|
if (rt_hw_watchdog_register(&ab32_wdt.watchdog, "wdt", RT_DEVICE_FLAG_DEACTIVATE, RT_NULL) != RT_EOK)
|
|
{
|
|
LOG_E("wdt device register failed.");
|
|
return -RT_ERROR;
|
|
}
|
|
LOG_D("wdt device register success.");
|
|
return RT_EOK;
|
|
}
|
|
INIT_BOARD_EXPORT(rt_wdt_init);
|
|
|
|
#endif /* RT_USING_WDT */
|