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/**
* @file
*
* Southbridge EC IO access common routine
*
*/
/*
*****************************************************************************
*
* Copyright (c) 2011, Advanced Micro Devices, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of Advanced Micro Devices, Inc. nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL ADVANCED MICRO DEVICES, INC. BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* ***************************************************************************
*
*/
#include "SBPLATFORM.h"
#include "ECfan.h"
VOID
ReadECmsg (
IN UINT8 Address,
IN UINT8 OpFlag,
OUT VOID* Value
)
{
UINT8 i;
OpFlag = OpFlag & 0x7f;
if (OpFlag == 0x02) OpFlag = 0x03;
for (i = 0; i <= OpFlag; i++) {
WriteIO(MailBoxPort, AccWidthUint8, &Address); // EC_LDN9_MAILBOX_BASE_ADDRESS
Address++;
ReadIO(MailBoxPort + 1, AccWidthUint8, (UINT8 *)Value+i); // EC_LDN9_MAILBOX_BASE_ADDRESS
}
}
VOID
WriteECmsg (
IN UINT8 Address,
IN UINT8 OpFlag,
IN VOID* Value
)
{
UINT8 i;
OpFlag = OpFlag & 0x7f;
if (OpFlag == 0x02) OpFlag = 0x03;
for (i = 0; i <= OpFlag; i++) {
WriteIO(MailBoxPort, AccWidthUint8, &Address); // EC_LDN9_MAILBOX_BASE_ADDRESS
Address++;
WriteIO(MailBoxPort + 1, AccWidthUint8, (UINT8 *)Value+i); // EC_LDN9_MAILBOX_BASE_ADDRESS
}
}
VOID
WaitForEcLDN9MailboxCmdAck (
VOID
)
{
UINT8 Msgdata;
UINT16 Delaytime;
Msgdata = 0;
for (Delaytime = 0; Delaytime <= 500; Delaytime++) {
ReadECmsg (MSG_REG0, AccWidthUint8, &Msgdata);
if ( Msgdata == 0xfa) {
break;
}
SbStall (1000); // Wait for 1ms
}
}
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