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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2014 Google Inc.
* Copyright (C) 2015 Intel Corporation.
*
* 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.
*/
#include <soc/gpio_defs.h>
Device (GPIO)
{
Name (_HID, "INT344B")
Name (_UID, 1)
Name (_DDN, "GPIO Controller")
Name (RBUF, ResourceTemplate()
{
Memory32Fixed (ReadWrite, 0, 0, COM0)
Memory32Fixed (ReadWrite, 0, 0, COM1)
Memory32Fixed (ReadWrite, 0, 0, COM3)
Interrupt (ResourceConsumer, Level, ActiveLow, Shared,,, GIRQ)
{ 0 }
})
Method (_CRS, 0, NotSerialized)
{
/* GPIO Community 0 */
CreateDWordField (^RBUF, ^COM0._BAS, BAS0)
CreateDWordField (^RBUF, ^COM0._LEN, LEN0)
Store (^^PCRB (PID_GPIOCOM0), BAS0)
Store (GPIO_BASE_SIZE, LEN0)
/* GPIO Community 1 */
CreateDWordField (^RBUF, ^COM1._BAS, BAS1)
CreateDWordField (^RBUF, ^COM1._LEN, LEN1)
Store (^^PCRB (PID_GPIOCOM1), BAS1)
Store (GPIO_BASE_SIZE, LEN1)
/* GPIO Community 3 */
CreateDWordField (^RBUF, ^COM3._BAS, BAS3)
CreateDWordField (^RBUF, ^COM3._LEN, LEN3)
Store (^^PCRB (PID_GPIOCOM3), BAS3)
Store (GPIO_BASE_SIZE, LEN3)
CreateDWordField (^RBUF, ^GIRQ._INT, IRQN)
And (^^PCRR (PID_GPIOCOM0, MISCCFG_OFFSET),
GPIO_DRIVER_IRQ_ROUTE_MASK, Local0)
If (LEqual (Local0, GPIO_DRIVER_IRQ_ROUTE_IRQ14)) {
Store (GPIO_IRQ14, IRQN)
} Else {
Store (GPIO_IRQ15, IRQN)
}
Return (RBUF)
}
Method (_STA, 0, NotSerialized)
{
Return (0xF)
}
}
/*
* Get GPIO DW0 Address
* Arg0 - GPIO Number
*/
Method (GADD, 1, NotSerialized)
{
/* GPIO Community 0 */
If (LAnd (LGreaterEqual (Arg0, GPP_A0), LLessEqual (Arg0, GPP_B23)))
{
Store (PID_GPIOCOM0, Local0)
Subtract (Arg0, GPP_A0, Local1)
}
/* GPIO Community 1 */
If (LAnd (LGreaterEqual (Arg0, GPP_C0), LLessEqual (Arg0, GPP_E23)))
{
Store (PID_GPIOCOM1, Local0)
Subtract (Arg0, GPP_C0, Local1)
}
/* GPIO Community 03*/
If (LAnd (LGreaterEqual (Arg0, GPP_F0), LLessEqual (Arg0, GPP_G7)))
{
Store (PID_GPIOCOM3, Local0)
Subtract (Arg0, GPP_F0, Local1)
}
Store (PCRB (Local0), Local2)
Add (Local2, PAD_CFG_DW_OFFSET, Local2)
Return (Add (Local2, Multiply (Local1, 8)))
}
/*
* Get GPIO Value
* Arg0 - GPIO Number
*/
Method (GRXS, 1, Serialized)
{
OperationRegion (PREG, SystemMemory, GADD (Arg0), 4)
Field (PREG, AnyAcc, NoLock, Preserve)
{
VAL0, 32
}
And (GPIORXSTATE_MASK, ShiftRight (VAL0, GPIORXSTATE_SHIFT), Local0)
Return (Local0)
}
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