mirror of https://gitee.com/openkylin/qemu.git
49 lines
1.6 KiB
Plaintext
49 lines
1.6 KiB
Plaintext
/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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/****************************************************************
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* HPET
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****************************************************************/
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Scope(\_SB) {
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Device(HPET) {
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Name(_HID, EISAID("PNP0103"))
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Name(_UID, 0)
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OperationRegion(HPTM, SystemMemory, 0xFED00000, 0x400)
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Field(HPTM, DWordAcc, Lock, Preserve) {
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VEND, 32,
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PRD, 32,
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}
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Method(_STA, 0, NotSerialized) {
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Store(VEND, Local0)
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Store(PRD, Local1)
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ShiftRight(Local0, 16, Local0)
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If (LOr(LEqual(Local0, 0), LEqual(Local0, 0xffff))) {
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Return (0x0)
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}
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If (LOr(LEqual(Local1, 0), LGreater(Local1, 100000000))) {
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Return (0x0)
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}
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Return (0x0F)
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}
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Name(_CRS, ResourceTemplate() {
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Memory32Fixed(ReadOnly,
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0xFED00000, // Address Base
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0x00000400, // Address Length
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)
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})
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}
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}
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