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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2013 Alexandru Gagniuc <mr.nuke.me@gmail.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include "via_early_smbus.h"
/**
* \brief Checks if the SMBus is currently busy with a transaction
*
* @param smbus_dev The base SMBus IO port
*/
int smbus_is_busy(u32 smbus_dev)
{
/* Check if bit 0 of the status register is 1 (busy) or 0 (ready) */
return ((inb(SMBHSTSTAT(smbus_dev)) & (1 << 0)) == 1);
}
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