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9e70a11622
This adds several generic ASL libraries that can be included by other ASL files, which are: - debug.asl: for debug output using POST I/O port and legacy serial port - globutil.asl: for string compare routines - statdef.asl: for _STA status values Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Stefan Roese <sr@denx.de> Tested-by: Stefan Roese <sr@denx.de> Reviewed-by: Simon Glass <sjg@chromium.org>
114 lines
1.8 KiB
Plaintext
114 lines
1.8 KiB
Plaintext
/*
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* Copyright (C) 2008 Advanced Micro Devices, Inc.
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* Copyright (C) 2016 Bin Meng <bmeng.cn@gmail.com>
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*
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* Modified from coreboot src/arch/x86/acpi/globutil.asl
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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Method(MIN, 2)
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{
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If (LLess(Arg0, Arg1)) {
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Return (Arg0)
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} Else {
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Return (Arg1)
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}
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}
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Method(SLEN, 1)
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{
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Store(Arg0, Local0)
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Return (Sizeof(Local0))
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}
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Method(S2BF, 1, Serialized)
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{
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Add(SLEN(Arg0), One, Local0)
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Name(BUFF, Buffer(Local0) {})
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Store(Arg0, BUFF)
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Return (BUFF)
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}
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/*
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* SCMP - Strong string compare
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*
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* Checks both length and content
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*/
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Method(SCMP, 2)
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{
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Store(S2BF(Arg0), Local0)
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Store(S2BF(Arg1), Local1)
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Store(Zero, Local4)
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Store(SLEN(Arg0), Local5)
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Store(SLEN(Arg1), Local6)
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Store(MIN(Local5, Local6), Local7)
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While (LLess(Local4, Local7)) {
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Store(Derefof(Index(Local0, Local4)), Local2)
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Store(Derefof(Index(Local1, Local4)), Local3)
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If (LGreater(Local2, Local3)) {
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Return (One)
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} Else {
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If (LLess(Local2, Local3)) {
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Return (Ones)
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}
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}
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Increment(Local4)
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}
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If (LLess(Local4, Local5)) {
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Return (One)
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} Else {
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If (LLess(Local4, Local6)) {
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Return (Ones)
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} Else {
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Return (Zero)
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}
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}
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}
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/*
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* WCMP - Weak string compare
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*
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* Checks to find Arg1 at beginning of Arg0.
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* Fails if length(Arg0) < length(Arg1).
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* Returns 0 on fail, 1 on pass.
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*/
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Method(WCMP, 2)
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{
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Store(S2BF(Arg0), Local0)
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Store(S2BF(Arg1), Local1)
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If (LLess(SLEN(Arg0), SLEN(Arg1))) {
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Return (Zero)
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}
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Store(Zero, Local2)
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Store(SLEN(Arg1), Local3)
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While (LLess(Local2, Local3)) {
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If (LNotEqual(Derefof(Index(Local0, Local2)),
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Derefof(Index(Local1, Local2)))) {
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Return (Zero)
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}
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Increment(Local2)
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}
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Return (One)
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}
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/*
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* I2BM - Returns Bit Map
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*
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* Arg0 = IRQ Number (0-15)
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*/
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Method(I2BM, 1)
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{
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Store(0, Local0)
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If (LNotEqual(Arg0, 0)) {
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Store(1, Local1)
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ShiftLeft(Local1, Arg0, Local0)
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}
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Return (Local0)
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}
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