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/*
* Copyright (c) 2006-2025, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*/
#ifndef DRV_WDT_H_
#define DRV_WDT_H_
#include <drivers/dev_watchdog.h>
#include <sys/ioctl.h>
#define DEFUALT_TIMEOUT 30*1000 /* ms */
#define KD_WDT_NUM_TOPS 16
#define KD_WDT_FIX_TOP(_idx) (1U << (16 + _idx))
#define KD_WDT_RMOD_RESET 1
#define KD_WDT_RMOD_IRQ 2
#define KD_DEVICE_CTRL_WDT_GET_TIMEOUT _IOW('W', 1, int) /* get timeout(in seconds) */
#define KD_DEVICE_CTRL_WDT_SET_TIMEOUT _IOW('W', 2, int) /* set timeout(in seconds) */
#define KD_DEVICE_CTRL_WDT_GET_TIMELEFT _IOW('W', 3, int) /* get the left time before reboot(in seconds) */
#define KD_DEVICE_CTRL_WDT_KEEPALIVE _IOW('W', 4, int) /* refresh watchdog */
#define KD_DEVICE_CTRL_WDT_START _IOW('W', 5, int) /* start watchdog */
#define KD_DEVICE_CTRL_WDT_STOP _IOW('W', 6, int) /* stop watchdog */
struct k230_wdt_timeout {
rt_uint32_t top_val;
rt_uint32_t sec;
rt_uint32_t msec;
};
#define swap(a, b) \
do { struct k230_wdt_timeout __tmp = (a); (a) = (b); (b) = __tmp; } while (0)
/* wdt register map */
typedef struct _wdt
{
/* WDT Control Register (0x00) */
volatile uint32_t cr;
/* WDT Timeout Range Register (0x04) */
volatile uint32_t torr;
/* WDT Current Counter Value Register (0x08) */
volatile uint32_t ccvr;
/* WDT Counter Restart Register (0x0c) */
volatile uint32_t crr;
/* WDT Interrupt Status Register (0x10) */
volatile uint32_t stat;
/* WDT Interrupt Clear Register (0x14) */
volatile uint32_t eoi;
/* reserverd (0x18) */
volatile uint32_t resv1;
/* WDT Protection level Register (0x1c) */
volatile uint32_t prot_level;
/* reserved (0x20-0xe0) */
volatile uint32_t resv4[49];
/* WDT Component Parameters Register 5 (0xe4) */
volatile uint32_t comp_param_5;
/* WDT Component Parameters Register 4 (0xe8) */
volatile uint32_t comp_param_4;
/* WDT Component Parameters Register 3 (0xec) */
volatile uint32_t comp_param_3;
/* WDT Component Parameters Register 2 (0xf0) */
volatile uint32_t comp_param_2;
/* WDT Component Parameters Register 1 (0xf4) */
volatile uint32_t comp_param_1;
/* WDT Component Version Register (0xf8) */
volatile uint32_t comp_version;
/* WDT Component Type Register (0xfc) */
volatile uint32_t comp_type;
} __attribute__((packed, aligned(4))) k230_wdt_t;
#endif /* DRV_WDT_H_ */
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