AwardBios-ACPI Overview

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IDE Native mode

Report method on \_SB.PCI0\. Name(NATA,Package() {0x00XX000X})

Added registry on WinXP SP1: On”HKEY_LOCAL_MACHINE\System\Curre ntControlSet\Control\Pnp\Pci” Added a value (EnableNativeModeATA) and data type is “DWORD” and set data to not zero.
RSDT_Pointer => RSD_PTR+[4]
Top MEM
FACP_Pointer => [ RSDT_Pointer ]+[ FACPOffset ]
FACS_Pointer => [ FACP_Pointer ]+[ FACSOffset ] DSDT_Pointer => [ FACP_Pointer ]+[ DSDTOffset ]
PM1_Cnt_Len
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10
GPEn_BLK
Exp:VIA SB ACPI_Port + 20h
1.Contain GPEn_STS and GPEn_EN
Offset 80 Offset 84
GPE0_BLK GPE1_BLK GPE0_Blk_Le n GPE1_Blk_Le n **GPE1_Base
7
Offset 46
SCI_INT
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1. ACPI ON
OUT
SMI_CMD , ACPI_Enable
2. ACPI OFF
Offset 48 Offset 52 Offset 53
SMI_CMD ACPI_Enable ACPI_Disable
OUT
SMI_CMD , ACPI_Disable

Question2: Declare a USB bridge on Dev16:Func0 and it can wakeup on S0,S1,S2 and S3.
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20
The WHDC white paper on:
/hwdev/tech/storage/ Native-modeATA.asp
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Examination

Question1: Turn ON LED before suspend and turn off after resume.
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11
DSDT Overview

System State Name (\_S0,Package( ) {0,0,0,0} ) Name (\_S1,Package( ) {4,4,4,4} ) Name (\_S3,Package( ) {1,1,1,1} ) PM1a_CNT_BLK Bit 10 -12

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16

_S3D Method(_S3D,0) {Return(2)/Return(3)} Method(SS3D,0) {Return(2)/Return(3)}

2013-9-16
_PIC define:APIC_Selectable Name(PICF,0x00) Method(_PIC) {Store(Arg0,PICF)} Method(PPIC) {Store(Arg0,PICF)} _PIC(0)=>PIC mode , _PIC(1)=>APIC mode
BOOT_Pointer =>[ RSDT_Pointer ]+[ BOOTOffset ]
RSD_PTR RSDT_Pointer FACP_Pointer DSDT_Pointer BOOT_Pointer APIC_Pointer SSDT_Pointer
APIC_Pointer => [ RSDT_Pointer ]+[ APICOffset ]
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9
PM1x_Cnt_Blk
Exp:VIA SB ACPI_Port + 4
1.PM1_Cnt_Len = PM1x_Cnt_Blk Size
2.Contents: SMI/SCI events control
Offset 64 Offset 68
PM1a_Cnt_Bl k PM1b_Cnt_Bl k
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12

Method (\_PTS,1) / Method (\_WAK,1) ARG0 = System state Flush LED / Flush Debug Port Enable Primary IRQ resume event Issue SMI (Save S3 state) Reference ACPI
F000:XXXX
SSDT_Pointer => [ RSDT_Pointer ]+[ SSDTOffset ] FACPOffset = 36,FACSOffset = 36,DSDTOffset = 40
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6
FACP Table
SCI_INT:
1.Include from ACPI_CT.INC
RSDT FACP DSDT BOOT APIC SSDT
Top MEM
1.Enter big real Mode 2.Move ACPI table to top memory and fill RSDT_Pointer/ FACP_Pointer/ DSDT_Point ……. (MoveACPIToReclaim) 3.Fill ACPI table link offset, contain RSDT_Ptr /DSDToffset /FACSoffset / FACPoffset …….. (FillACPIAddress) 4.Special Patch (Ct_Parse_AML) 5.FillACPIChecksum 6.Leave big real mode
ACPI Overview
2013-9-16
1
Introduction
ASL
code is loaded when OS boot time. Memory 64k
Reserve
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2
Context




ACPI Structure Link ACPI MEMORY LOCATION FACP TABLE DSDT OVERVIEW ACPI PATCH IDE Native mode Examination
2.GPEn_BLK_Len = GPEn_STS Size + GPEn_EN Size 3.Contents:status/control PME,Ring,USB,LAN,MC97,…
Offset 92 Offset 93
Offset 94
4.Program on DSDT.ASX Scope(\_GPE)
3
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ACPI Structure Link
RSD PTR FACP BOOT RSDT APIC SSDT DBGP
FACS DSDT
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4
ACPI Memory Location SetupACPI(POST_137S /89h):
ACPI Table - 64K
3. BIOS S4 on WIN98SE ( Hibernate ) OUT SMI_CMD , S4BIOS_REQ
Offset 54
S4BIOS_REQ
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8
PM1x_Evt_Blk
Exp:VIA SB ACPI_Port + 0
1.Contain PM1x_STS and PM1x_EN
14

2013-9-16

Device


2013-9-பைடு நூலகம்6
_ADR(Address) or _HID(Hardware ID) _BBN(Base Bus Number) _STA(Status) ,Ref:ACPI Spec2.0 section 6.3.6 _UID(Unique ID) _PRT(PCI Routing Table) _CRS(Current Resource Setting) , _PRS(Possible Resource Setting) , _SRS(Set Resource Setting) _DIS(Disable)

2013-9-16
GPE GPEx_BLK Method (_Lxx) { Notify (devicename,0x02) }
Spec 2.0 Table 5-34 - 5-41
13

PRW Name ( _PRW,Package(2) {0x0n,5} ) Method ( _PRW,0 ) { Return (Package() {0x0n,5} ) } _OS and _INI
17

IO Trap
ACPI OS Boot : Measure S0 working right Read/Write/Read PM1a_Cnt_Blk
(1). Dummy IO : Virtual_ACPI_IO SMI Occur - Read/Write
(2). SLP_EN : PM1a_CNT_BLK SMI Occur – Read only