blob: e6212ab59382ee1b46556c764db39dd04413e691 [file] [log] [blame]
/* Copyright 2012 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
/* Port 80 module for Chrome EC */
#ifndef __CROS_EC_PORT80_H
#define __CROS_EC_PORT80_H
#include "common.h"
enum port_80_event {
PORT_80_EVENT_RESUME = 0x1001, /* S3->S0 transition */
PORT_80_EVENT_RESET = 0x1002, /* RESET transition */
PORT_80_IGNORE = 0xffff, /* Invalid POST CODE */
};
/**
* Store data from a LPC write to port 80, or a port_80_event code.
*
* @param data Data written to port 80.
*/
void port_80_write(int data);
/**
* Chip specific function to read from port 80.
*
* @return data from the last LPC write to port 80,
* or PORT_80_IGNORE if no data is available.
*/
int port_80_read(void);
#endif /* __CROS_EC_PORT80_H */