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/*
* This file is part of the coreboot project.
*
* Copyright (c) 2013 Vladimir Serbinenko
* Copyright (c) 2015 Raptor Engineering
*
* 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.
*/
/* SuperIO control port */
Name (SPIO, 0x2E)
/* SuperIO control map */
OperationRegion (SPIM, SystemIO, SPIO, 0x02)
Field (SPIM, ByteAcc, NoLock, Preserve) {
SIOI, 8,
SIOD, 8
}
/* SuperIO control registers */
IndexField (SIOI, SIOD, ByteAcc, NoLock, Preserve) {
Offset (0x2A),
CR2A, 8, /* Pin function selection */
}
Device (PS2K) // Keyboard
{
Name(_HID, EISAID("PNP0303"))
Name(_CID, EISAID("PNP030B"))
Name(_CRS, ResourceTemplate()
{
IO (Decode16, 0x60, 0x60, 0x01, 0x01)
IO (Decode16, 0x64, 0x64, 0x01, 0x01)
IRQ (Edge, ActiveHigh, Exclusive) { 0x01 } // IRQ 1
})
Method (_STA, 0)
{
Return (0xf)
}
}
Device (PS2M) // Mouse
{
Name(_HID, EISAID("PNP0F13"))
Name(_CRS, ResourceTemplate()
{
IRQ (Edge, ActiveHigh, Exclusive) { 0x0c } // IRQ 12
})
Method(_STA, 0)
{
/* Access SuperIO ACPI device */
Store(0x87, SIOI)
Store(0x87, SIOI)
/* Read Pin56 function select */
And(CR2A, 0x2, Local0)
/* Restore default SuperIO access */
Store(0xAA, SIOI)
if (LEqual(Local0, 0x0)) {
/* Mouse function selected */
Return (0xf)
}
Return (0x0)
}
}
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