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/*
* This file is part of the coreboot project.
*
* Copyright 2020 The coreboot project Authors
*
* 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; version 2 of the License.
*
* 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.
*/
/*
* Get GPIO Value
* Arg0 - GPIO Number
*/
Method (GRXS, 1, Serialized)
{
OperationRegion (PREG, SystemMemory, GADD (Arg0), 4)
Field (PREG, AnyAcc, NoLock, Preserve)
{
VAL0, 32
}
And (PAD_CFG0_RX_STATE, ShiftRight (VAL0, PAD_CFG0_RX_STATE_BIT), Local0)
Return (Local0)
}
/*
* Get GPIO Tx Value
* Arg0 - GPIO Number
*/
Method (GTXS, 1, Serialized)
{
OperationRegion (PREG, SystemMemory, GADD (Arg0), 4)
Field (PREG, AnyAcc, NoLock, Preserve)
{
VAL0, 32
}
And (PAD_CFG0_TX_STATE, VAL0, Local0)
Return (Local0)
}
/*
* Set GPIO Tx Value
* Arg0 - GPIO Number
*/
Method (STXS, 1, Serialized)
{
OperationRegion (PREG, SystemMemory, GADD (Arg0), 4)
Field (PREG, AnyAcc, NoLock, Preserve)
{
VAL0, 32
}
Or (PAD_CFG0_TX_STATE, VAL0, VAL0)
}
/*
* Clear GPIO Tx Value
* Arg0 - GPIO Number
*/
Method (CTXS, 1, Serialized)
{
OperationRegion (PREG, SystemMemory, GADD (Arg0), 4)
Field (PREG, AnyAcc, NoLock, Preserve)
{
VAL0, 32
}
And (Not (PAD_CFG0_TX_STATE), VAL0, VAL0)
}
/*
* Set Pad mode
* Arg0 - GPIO Number
* Arg1 - Pad mode
* 0 = GPIO control pad
* 1 = Native Function 1
* 2 = Native Function 2
* 3 = Native Function 3
*/
Method (GPMO, 2, Serialized)
{
OperationRegion (PREG, SystemMemory, GADD (Arg0), 4)
Field (PREG, AnyAcc, NoLock, Preserve)
{
VAL0, 32
}
Store (VAL0, Local0)
And (Not (PAD_CFG0_MODE_MASK), Local0, Local0)
And (ShiftLeft (Arg1, PAD_CFG0_MODE_SHIFT, Arg1), PAD_CFG0_MODE_MASK, Arg1)
Or (Local0, Arg1, VAL0)
}
/*
* Enable/Disable Tx buffer
* Arg0 - GPIO Number
* Arg1 - TxBuffer state
* 0 = Disable Tx Buffer
* 1 = Enable Tx Buffer
*/
Method (GTXE, 2, Serialized)
{
OperationRegion (PREG, SystemMemory, GADD (Arg0), 4)
Field (PREG, AnyAcc, NoLock, Preserve)
{
VAL0, 32
}
If (LEqual (Arg1, 1)) {
And (Not (PAD_CFG0_TX_DISABLE), VAL0, VAL0)
} ElseIf (LEqual (Arg1, 0)){
Or (PAD_CFG0_TX_DISABLE, VAL0, VAL0)
}
}
/*
* Enable/Disable Rx buffer
* Arg0 - GPIO Number
* Arg1 - RxBuffer state
* 0 = Disable Rx Buffer
* 1 = Enable Rx Buffer
*/
Method (GRXE, 2, Serialized)
{
OperationRegion (PREG, SystemMemory, GADD (Arg0), 4)
Field (PREG, AnyAcc, NoLock, Preserve)
{
VAL0, 32
}
If (LEqual (Arg1, 1)) {
And (Not (PAD_CFG0_RX_DISABLE), VAL0, VAL0)
} ElseIf (LEqual (Arg1, 0)){
Or (PAD_CFG0_RX_DISABLE, VAL0, VAL0)
}
}
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