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Implement AcGetAcpiTable() routine

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This commit is contained in:
Rafal Kupiec 2024-05-19 23:45:28 +02:00
parent 4931f1b9a3
commit ac33b86c3d
Signed by: belliash
GPG Key ID: 4E829243E0CFE6B4
4 changed files with 168 additions and 0 deletions
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2
sdk/xtdk/bltypes.h
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@ -110,6 +110,7 @@ typedef VOID (XTAPI *PBL_ZERO_MEMORY)(OUT PVOID Destination, IN SIZE_T Length);
/* Module protocols routine pointers */
typedef EFI_STATUS (*PBL_ACPI_GET_ACPI_DESCRIPTION_POINTER)(OUT PVOID *AcpiTable);
typedef EFI_STATUS (*PBL_ACPI_GET_ACPI_TABLE)(IN CONST UINT Signature, IN PVOID PreviousTable, OUT PVOID *AcpiTable);
typedef EFI_STATUS (*PBL_ACPI_GET_APIC_BASE)(OUT PVOID *ApicBase);
typedef EFI_STATUS (*PBL_ACPI_GET_RSDP_TABLE)(OUT PVOID *AcpiTable);
typedef EFI_STATUS (*PBL_ACPI_GET_SMBIOS_TABLE)(OUT PVOID *SmBiosTable);
@ -301,6 +302,7 @@ typedef struct _XTBL_FRAMEBUFFER_INFORMATION
typedef struct _XTBL_ACPI_PROTOCOL
{
PBL_ACPI_GET_ACPI_DESCRIPTION_POINTER GetAcpiDescriptionPointer;
PBL_ACPI_GET_ACPI_TABLE GetAcpiTable;
PBL_ACPI_GET_APIC_BASE GetApicBase;
PBL_ACPI_GET_RSDP_TABLE GetRsdpTable;
PBL_ACPI_GET_SMBIOS_TABLE GetSMBiosTable;

53
sdk/xtdk/hltypes.h
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@ -9,9 +9,27 @@
#ifndef __XTDK_HLTYPES_H
#define __XTDK_HLTYPES_H
#include <xtdefs.h>
#include <xttypes.h>
/* ACPI table signatures */
#define ACPI_APIC_SIGNATURE 0x43495041 /* MADT/APIC Description Table */
#define ACPI_BGRT_SIGNATURE 0x54524742 /* Boot Graphics Record Table */
#define ACPI_DBGP_SIGNATURE 0x50474244 /* Debug Port Table */
#define ACPI_DSDT_SIGNATURE 0x54445344 /* Differentiated System Description Table */
#define ACPI_FADT_SIGNATURE 0x50434146 /* Fixed ACPI Description Table */
#define ACPI_GTDT_SIGNATURE 0x54445447 /* Generic Timer Description Table */
#define ACPI_HPET_SIGNATURE 0x54455048 /* High Precision Event Timer */
#define ACPI_MCFG_SIGNATURE 0x4746434D /* Memory Mapped Configuration Space Access Table */
#define ACPI_PSDT_SIGNATURE 0x54445350 /* Persistent System Description Table */
#define ACPI_RSDT_SIGNATURE 0x54445352 /* Root System Description Table */
#define ACPI_SBST_SIGNATURE 0x54534253 /* Smart Battery Subsystem Table */
#define ACPI_SSDT_SIGNATURE 0x54445353 /* Secondary System Descriptor Table */
#define ACPI_SRAT_SIGNATURE 0x54415253 /* Static Resource Affinity Table */
#define ACPI_WDTT_SIGNATURE 0x54524457 /* Watchdog Timer Resource Table */
#define ACPI_XSDT_SIGNATURE 0x54445358 /* eXtended System Descriptor Table */
/* Default serial port settings */
#define COMPORT_CLOCK_RATE 0x1C200
#define COMPORT_WAIT_TIMEOUT 204800
@ -134,6 +152,41 @@ typedef enum _HAL_APIC_MODE
APIC_MODE_X2APIC
} HAL_APIC_MODE, *PHAL_APIC_MODE;
/* Each ACPI table description header structure */
typedef struct _ACPI_DESCRIPTION_HEADER
{
UCHAR Signature[4];
ULONG Length;
UCHAR Revision;
UCHAR Checksum;
UCHAR OemId[6];
UCHAR OemTableID[8];
ULONG OemRevision;
UCHAR CreatorID[4];
ULONG CreatorRev;
} PACK ACPI_DESCRIPTION_HEADER, *PACPI_DESCRIPTION_HEADER;
/* ACPI Root System Description Table Pointer structure */
typedef struct _ACPI_RSDP
{
UCHAR Signature[8];
UCHAR Checksum;
UCHAR OemId[6];
UCHAR Revision;
ULONG RsdtAddress;
ULONG Length;
ULONGLONG XsdtAddress;
UCHAR XChecksum;
UCHAR Reserved[3];
} PACK ACPI_RSDP, *PACPI_RSDP;
/* ACPI Root System Description Table structure */
typedef struct _ACPI_RSDT
{
ACPI_DESCRIPTION_HEADER Header;
UCHAR Entries[];
} PACK ACPI_RSDT, *PACPI_RSDT;
/* Serial (COM) port initial state */
typedef struct _CPPORT
{

3
sdk/xtdk/xtstruct.h
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@ -52,6 +52,9 @@ typedef enum _SYSTEM_FIRMWARE_TYPE SYSTEM_FIRMWARE_TYPE, *PSYSTEM_FIRMWARE_TYPE;
typedef enum _WAIT_TYPE WAIT_TYPE, *PWAIT_TYPE;
/* Structures forward references */
typedef struct _ACPI_DESCRIPTION_HEADER ACPI_DESCRIPTION_HEADER, *PACPI_DESCRIPTION_HEADER;
typedef struct _ACPI_RSDP ACPI_RSDP, *PACPI_RSDP;
typedef struct _ACPI_RSDT ACPI_RSDT, *PACPI_RSDT;
typedef struct _ANSI_STRING ANSI_STRING, *PANSI_STRING;
typedef struct _ANSI_STRING32 ANSI_STRING32, *PANSI_STRING32;
typedef struct _ANSI_STRING64 ANSI_STRING64, *PANSI_STRING64;

110
xtldr/modules/acpi/acpi.c
View File

@ -51,6 +51,115 @@ AcGetAcpiDescriptionPointer(OUT PVOID *AcpiTable)
return STATUS_EFI_NOT_FOUND;
}
/**
* Finds ACPI description table with given signature.
*
* @param Signature
* Supplies the signature of the desired ACPI table.
*
* @param PreviousTable
* Supplies a pointer to the table to start searching from.
*
* @param AcpiTable
* Supplies a pointer to memory area where ACPI table address will be stored, or NULL if not found.
*
* @return This routine returns a status code.
*
* @since XT 1.0
*/
XTCDECL
EFI_STATUS
AcGetAcpiTable(IN CONST UINT Signature,
IN PVOID PreviousTable,
OUT PVOID *AcpiTable)
{
PACPI_DESCRIPTION_HEADER TableHeader;
SIZE_T RsdtIndex, TableIndex;
EFI_STATUS Status;
SIZE_T TableCount;
PACPI_RSDP Rsdp;
PACPI_RSDT Rsdt;
BOOLEAN Xsdp;
/* Return NULL address by default if requested table not found */
*AcpiTable = NULL;
/* Get Root System Description Table Pointer */
Status = AcGetAcpiDescriptionPointer((PVOID)&Rsdp);
if(Status != STATUS_EFI_SUCCESS)
{
/* ACPI tables not found, return error */
return Status;
}
/* Check if it is XSDP (ACPI 2.0) or RSDP (ACPI 1.0) */
if(Rsdp->Revision >= 2 && Rsdp->XsdtAddress)
{
/* XSDP (ACPI 2.0) */
Xsdp = TRUE;
Rsdt = (PACPI_RSDT)(UINT_PTR)Rsdp->XsdtAddress;
TableCount = (Rsdt->Header.Length - sizeof(ACPI_DESCRIPTION_HEADER)) / 8;
}
else
{
/* RSDP (ACPI 1.0) */
Xsdp = FALSE;
Rsdt = (PACPI_RSDT)(UINT_PTR)Rsdp->RsdtAddress;
TableCount = (Rsdt->Header.Length - sizeof(ACPI_DESCRIPTION_HEADER)) / 4;
}
/* Iterate over all ACPI tables */
for(TableIndex = 0; TableIndex < TableCount; TableIndex++)
{
/* Get table headers in reverse order */
RsdtIndex = TableCount - TableIndex - 1;
/* Check if XSDP or RSDT is used */
if(Xsdp)
{
/* Get table header from XSDT */
TableHeader = (PACPI_DESCRIPTION_HEADER)(ULONG_PTR)((PULONGLONG)Rsdt->Entries)[RsdtIndex];
}
else
{
/* Get table header from RSDT */
TableHeader = (PACPI_DESCRIPTION_HEADER)(ULONG_PTR)((PULONG)Rsdt->Entries)[RsdtIndex];
}
/* Make sure table header exists */
if(TableHeader == NULL)
{
/* Skip to next ACPI table */
continue;
}
/* Check if previous table provided */
if(PreviousTable != NULL)
{
/* Check if this is a table previously found */
if(TableHeader == (PVOID)PreviousTable)
{
/* Unset previous table */
PreviousTable = NULL;
}
/* Skip to next ACPI table */
continue;
}
/* Verify table signature and checksum */
if((*(PLONG)TableHeader->Signature == Signature) && (AcpChecksumTable(TableHeader, TableHeader->Length) == 0))
{
/* Found valid ACPI table */
*AcpiTable = TableHeader;
return STATUS_EFI_SUCCESS;
}
}
/* ACPI table not found */
return STATUS_EFI_NOT_FOUND;
}
/**
* Gets the Advanced Programmable Interrupt Controller (APIC) base address.
*
@ -284,6 +393,7 @@ XtLdrModuleMain(IN EFI_HANDLE ImageHandle,
/* Set routines available via ACPI protocol */
AcpAcpiProtocol.GetAcpiDescriptionPointer = AcGetAcpiDescriptionPointer;
AcpAcpiProtocol.GetAcpiTable = AcGetAcpiTable;
AcpAcpiProtocol.GetApicBase = AcGetApicBase;
AcpAcpiProtocol.GetRsdpTable = AcGetRsdpTable;
AcpAcpiProtocol.GetSMBiosTable = AcGetSMBiosTable;