Advantech MIO-5850, User Manual

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MIO-5850 User Manual 68
D.1 EC Watchdog Timer sample code
Display source code fixed width font for easy reading.
The sample code can be compiled by Open Watcom C++ compiler running on DOS.
#include <stdio.h>
#include <string.h>
#include <conio.h>
#include <stdint.h>
#include <i86.h>
#define CMD_PORT (0x2F6)
#define STS_PORT CMD_PORT
#define DAT_PORT (0x2F2)
#define EC_RETRIES (65535)
#define EC_STS_IBF 0x02
#define EC_STS_OBF 0x01
#define EC_CMD_MASK 0x01 // 1=read command, 0=write command
#define EC_CMD_READ EC_CMD_MASK
#define WDT_CMD_WRITE 0x2A
#define WDT_CMD_READ 0x2B
#define WDT_CTL 0x02
#define WDT_CTL_CLEAR 0x02
#define WDT_CTL_START 0x01
#define WDT_CTL_STOP 0x00
#define WDT_TYPE_DELAY 0x11 // add delay time before watchdog starting
#define WDT_TYPE_PWRCYC 0x12 // power cycle
#define WDT_TYPE_IRQ 0x13 // issue IRQ
#define WDT_TYPE_RESET 0x14 // reset
#define WDT_TYPE_PIN 0x15 // set watchdog pin
#define WDT_TYPE_SCI 0x16 // issue SCI in ACPI OS
#define inb(p) inp(p)
#define outb(p, v) outp(p, v)
//
================================================================
=============
// ec_wait_ibe
//
================================================================
=============