mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-11-14 10:05:43 +01:00
419 lines
12 KiB
C
419 lines
12 KiB
C
/** @file
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Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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Module Name:
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LegacyTable.c
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Abstract:
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Revision History:
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**/
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#include "DxeIpl.h"
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#include "HobGeneration.h"
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//#include "Debug.h"
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#define MPS_PTR SIGNATURE_32('_','M','P','_')
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#define SMBIOS_PTR SIGNATURE_32('_','S','M','_')
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#define EBDA_BASE_ADDRESS 0x40E
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VOID *
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FindAcpiRsdPtr (
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VOID
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)
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{
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UINTN Address;
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UINTN Index;
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//
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// First Seach 0x0e0000 - 0x0fffff for RSD Ptr
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//
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for (Address = 0xe0000; Address < 0xfffff; Address += 0x10) {
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if (*(UINT64 *)(Address) == EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER_SIGNATURE) {
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return (VOID *)Address;
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}
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}
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//
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// Search EBDA
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//
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volatile UINT16 * volatile ebda;
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ebda = (volatile UINT16 *)(UINTN)(EBDA_BASE_ADDRESS);
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Address = (UINTN)(*ebda) << 4;
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for (Index = 0; Index < 0x400 ; Index += 16) {
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if (*(volatile UINT64 *)(Address + Index) == EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER_SIGNATURE) {
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return (VOID *)Address;
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}
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}
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return NULL;
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}
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VOID *
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FindSMBIOSPtr (
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VOID
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)
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{
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UINTN Address;
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//
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// First Seach 0x0f0000 - 0x0fffff for SMBIOS Ptr
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//
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for (Address = 0xf0000; Address < 0xfffff; Address += 0x10) {
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if (*(UINT32 *)(Address) == SMBIOS_PTR) {
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return (VOID *)Address;
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}
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}
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return NULL;
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}
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VOID *
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FindMPSPtr (
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VOID
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)
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{
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UINTN Address;
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UINTN Index;
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//
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// First Seach 0x0e0000 - 0x0fffff for MPS Ptr
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//
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for (Address = 0xe0000; Address < 0xfffff; Address += 0x10) {
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if (*(UINT32 *)(Address) == MPS_PTR) {
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return (VOID *)Address;
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}
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}
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//
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// Search EBDA
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//
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volatile UINT16 * volatile ebda;
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ebda = (volatile UINT16 *)(UINTN)(EBDA_BASE_ADDRESS);
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Address = (UINTN)(*ebda) << 4;
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// Address = (*(UINT16 *)(UINTN)(EBDA_BASE_ADDRESS)) << 4;
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for (Index = 0; Index < 0x400 ; Index += 16) {
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if (*(volatile UINT32 *)(Address + Index) == MPS_PTR) {
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return (VOID *)Address;
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}
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}
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return NULL;
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}
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#pragma pack(1)
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typedef struct {
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EFI_ACPI_DESCRIPTION_HEADER Header;
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UINT32 Entry;
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} RSDT_TABLE;
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typedef struct {
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EFI_ACPI_DESCRIPTION_HEADER Header;
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UINT64 Entry;
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} XSDT_TABLE;
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#pragma pack()
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VOID
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ScanTableInRSDT (
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RSDT_TABLE *Rsdt,
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UINT32 Signature,
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EFI_ACPI_DESCRIPTION_HEADER **FoundTable
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)
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{
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UINTN Index;
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UINT32 EntryCount;
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UINT32 *EntryPtr;
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EFI_ACPI_DESCRIPTION_HEADER *Table;
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*FoundTable = NULL;
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EntryCount = (Rsdt->Header.Length - sizeof (EFI_ACPI_DESCRIPTION_HEADER)) / sizeof(UINT32);
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EntryPtr = &Rsdt->Entry;
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for (Index = 0; Index < EntryCount; Index ++, EntryPtr ++) {
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Table = (EFI_ACPI_DESCRIPTION_HEADER*)((UINTN)(*EntryPtr));
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if (Table->Signature == Signature) {
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*FoundTable = Table;
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break;
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}
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}
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return;
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}
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VOID
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ScanTableInXSDT (
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XSDT_TABLE *Xsdt,
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UINT32 Signature,
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EFI_ACPI_DESCRIPTION_HEADER **FoundTable
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)
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{
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UINTN Index;
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UINT32 EntryCount;
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UINT64 EntryPtr;
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UINTN BasePtr;
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EFI_ACPI_DESCRIPTION_HEADER *Table;
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*FoundTable = NULL;
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EntryCount = (Xsdt->Header.Length - sizeof (EFI_ACPI_DESCRIPTION_HEADER)) / sizeof(UINT64);
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BasePtr = (UINTN)(&(Xsdt->Entry));
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for (Index = 0; Index < EntryCount; Index ++) {
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CopyMem(&EntryPtr, (VOID *)(BasePtr + Index * sizeof(UINT64)), sizeof(UINT64));
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Table = (EFI_ACPI_DESCRIPTION_HEADER*)((UINTN)(EntryPtr));
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if (Table->Signature == Signature) {
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*FoundTable = Table;
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break;
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}
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}
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return;
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}
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VOID *
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FindAcpiPtr (
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IN HOB_TEMPLATE *Hob,
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UINT32 Signature
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)
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{
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EFI_ACPI_DESCRIPTION_HEADER *AcpiTable;
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EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER *Rsdp;
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RSDT_TABLE *Rsdt;
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XSDT_TABLE *Xsdt;
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AcpiTable = NULL;
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//
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// Check ACPI2.0 table
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//
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if ((int)Hob->Acpi20.Table != -1) {
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Rsdp = (EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER *)(UINTN)Hob->Acpi20.Table;
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Rsdt = (RSDT_TABLE *)(UINTN)Rsdp->RsdtAddress;
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Xsdt = NULL;
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if ((Rsdp->Revision >= 2) && (Rsdp->XsdtAddress < (UINT64)(UINTN)-1)) {
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Xsdt = (XSDT_TABLE *)(UINTN)Rsdp->XsdtAddress;
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}
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//
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// Check Xsdt
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//
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if (Xsdt != NULL) {
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ScanTableInXSDT (Xsdt, Signature, &AcpiTable);
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}
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//
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// Check Rsdt
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//
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if ((AcpiTable == NULL) && (Rsdt != NULL)) {
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ScanTableInRSDT (Rsdt, Signature, &AcpiTable);
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}
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}
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//
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// Check ACPI1.0 table
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//
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if ((AcpiTable == NULL) && ((int)Hob->Acpi.Table != -1)) {
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Rsdp = (EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER *)(UINTN)Hob->Acpi.Table;
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Rsdt = (RSDT_TABLE *)(UINTN)Rsdp->RsdtAddress;
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//
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// Check Rsdt
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//
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if (Rsdt != NULL) {
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ScanTableInRSDT (Rsdt, Signature, &AcpiTable);
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}
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}
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return AcpiTable;
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}
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#pragma pack(1)
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typedef struct {
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UINT64 BaseAddress;
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UINT16 PciSegmentGroupNumber;
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UINT8 StartBusNumber;
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UINT8 EndBusNumber;
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UINT32 Reserved;
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} MCFG_STRUCTURE;
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#pragma pack()
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VOID
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PrepareMcfgTable (
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IN HOB_TEMPLATE *Hob
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)
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{
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EFI_ACPI_DESCRIPTION_HEADER *McfgTable;
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MCFG_STRUCTURE *Mcfg;
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UINTN McfgCount;
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UINTN Index;
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McfgTable = FindAcpiPtr (Hob, EFI_ACPI_3_0_PCI_EXPRESS_MEMORY_MAPPED_CONFIGURATION_SPACE_BASE_ADDRESS_DESCRIPTION_TABLE_SIGNATURE);
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if (McfgTable == NULL) {
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return ;
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}
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Mcfg = (MCFG_STRUCTURE *)((UINTN)McfgTable + sizeof(EFI_ACPI_DESCRIPTION_HEADER) + sizeof(UINT64));
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McfgCount = (McfgTable->Length - sizeof(EFI_ACPI_DESCRIPTION_HEADER) - sizeof(UINT64)) / sizeof(MCFG_STRUCTURE);
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//
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// Fill PciExpress info on Hob
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// Note: Only for 1st segment
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//
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for (Index = 0; Index < McfgCount; Index++) {
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if (Mcfg[Index].PciSegmentGroupNumber == 0) {
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Hob->PciExpress.PciExpressBaseAddressInfo.PciExpressBaseAddress = Mcfg[Index].BaseAddress;
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break;
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}
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}
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return ;
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}
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VOID
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PrepareFadtTable (
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IN HOB_TEMPLATE *Hob
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)
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{
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EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE *Fadt;
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EFI_ACPI_DESCRIPTION *AcpiDescription;
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Fadt = FindAcpiPtr (Hob, EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE_SIGNATURE);
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if (Fadt == NULL) {
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return ;
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}
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AcpiDescription = &Hob->AcpiInfo.AcpiDescription;
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//
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// Fill AcpiDescription according to FADT
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// Currently, only for PM_TMR
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//
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AcpiDescription->PM_TMR_LEN = Fadt->PmTmrLen;
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AcpiDescription->TMR_VAL_EXT = (UINT8)((Fadt->Flags & 0x100) != 0);
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AcpiDescription->Flags = Fadt->Flags;
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//
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// For fields not included in ACPI 1.0 spec, we get the value based on table length
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//
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if (Fadt->Header.Length >= OFFSET_OF (EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE, XPmTmrBlk) + sizeof (Fadt->XPmTmrBlk)) {
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CopyMem(
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&AcpiDescription->PM_TMR_BLK,
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&Fadt->XPmTmrBlk,
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sizeof(EFI_ACPI_3_0_GENERIC_ADDRESS_STRUCTURE)
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);
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}
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if (Fadt->Header.Length >= OFFSET_OF (EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE, ResetValue) + sizeof (Fadt->ResetValue)) {
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CopyMem(
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&AcpiDescription->RESET_REG,
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&Fadt->ResetReg,
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sizeof(EFI_ACPI_3_0_GENERIC_ADDRESS_STRUCTURE)
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);
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AcpiDescription->RESET_VALUE = Fadt->ResetValue;
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} else {
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AcpiDescription->RESET_REG.Address = 0x64;
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AcpiDescription->RESET_REG.AddressSpaceId = EFI_ACPI_3_0_SYSTEM_IO;
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AcpiDescription->RESET_REG.RegisterBitWidth = 8;
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AcpiDescription->RESET_REG.RegisterBitOffset = 0;
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AcpiDescription->RESET_REG.AccessSize = 1;
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AcpiDescription->RESET_VALUE = 0xFE;
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}
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if (Fadt->Header.Length >= OFFSET_OF (EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE, XPm1aEvtBlk) + sizeof (Fadt->XPm1aEvtBlk)) {
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CopyMem(
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&AcpiDescription->PM1a_EVT_BLK,
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&Fadt->XPm1aEvtBlk,
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sizeof(EFI_ACPI_3_0_GENERIC_ADDRESS_STRUCTURE)
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);
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} else {
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AcpiDescription->PM1a_EVT_BLK.Address = (UINT64)Fadt->Pm1aEvtBlk;
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AcpiDescription->PM1a_EVT_BLK.AddressSpaceId = EFI_ACPI_3_0_SYSTEM_IO;
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AcpiDescription->PM1a_EVT_BLK.RegisterBitWidth = 20;
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AcpiDescription->PM1a_EVT_BLK.RegisterBitOffset = 0;
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AcpiDescription->PM1a_EVT_BLK.AccessSize = 3;
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}
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AcpiDescription->PM1_EVT_LEN = Fadt->Pm1EvtLen;
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if (Fadt->Header.Length >= OFFSET_OF (EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE, XPm1aCntBlk) + sizeof (Fadt->XPm1aCntBlk)) {
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CopyMem(
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&AcpiDescription->PM1a_CNT_BLK,
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&Fadt->XPm1aCntBlk,
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sizeof(EFI_ACPI_3_0_GENERIC_ADDRESS_STRUCTURE)
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);
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} else {
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AcpiDescription->PM1a_CNT_BLK.Address = (UINT64)Fadt->Pm1aCntBlk;
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AcpiDescription->PM1a_CNT_BLK.AddressSpaceId = EFI_ACPI_3_0_SYSTEM_IO;
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AcpiDescription->PM1a_CNT_BLK.RegisterBitWidth = 10;
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AcpiDescription->PM1a_CNT_BLK.RegisterBitOffset = 0;
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AcpiDescription->PM1a_CNT_BLK.AccessSize = 2;
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}
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AcpiDescription->PM1_CNT_LEN = Fadt->Pm1CntLen;
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if (Fadt->Header.Length >= OFFSET_OF (EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE, XPm2CntBlk) + sizeof (Fadt->XPm2CntBlk)) {
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CopyMem(
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&AcpiDescription->PM2_CNT_BLK,
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&Fadt->XPm2CntBlk,
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sizeof(EFI_ACPI_3_0_GENERIC_ADDRESS_STRUCTURE)
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);
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} else {
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AcpiDescription->PM2_CNT_BLK.Address = (UINT64)Fadt->Pm2CntBlk;
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AcpiDescription->PM2_CNT_BLK.AddressSpaceId = EFI_ACPI_3_0_SYSTEM_IO;
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AcpiDescription->PM2_CNT_BLK.RegisterBitWidth = 8;
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AcpiDescription->PM2_CNT_BLK.RegisterBitOffset = 0;
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AcpiDescription->PM2_CNT_BLK.AccessSize = 1;
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}
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AcpiDescription->PM2_CNT_LEN = Fadt->Pm2CntLen;
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if (AcpiDescription->PM_TMR_BLK.Address == 0) {
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AcpiDescription->PM_TMR_BLK.Address = Fadt->PmTmrBlk;
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AcpiDescription->PM_TMR_BLK.AddressSpaceId = EFI_ACPI_3_0_SYSTEM_IO;
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}
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//
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// It's possible that the PM_TMR_BLK.RegisterBitWidth is always 32,
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// we need to set the correct RegisterBitWidth value according to the TMR_VAL_EXT
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// A zero indicates TMR_VAL is implemented as a 24-bit value.
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// A one indicates TMR_VAL is implemented as a 32-bit value
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//
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AcpiDescription->PM_TMR_BLK.RegisterBitWidth = (UINT8) ((AcpiDescription->TMR_VAL_EXT == 0) ? 24 : 32);
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//
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//Slice - fill these fields by known values; 1 and 2 never used
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AcpiDescription->SLP_TYPa = 5;
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AcpiDescription->SLP3_TYPa = 5;
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AcpiDescription->SLP4_TYPa = 7;
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return ;
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}
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VOID
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PrepareHobLegacyTable (
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IN HOB_TEMPLATE *Hob
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)
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{
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// CHAR8 PrintBuffer[256];
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Hob->Acpi.Table = (EFI_PHYSICAL_ADDRESS)(UINTN)FindAcpiRsdPtr ();
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// AsciiSPrint (PrintBuffer, 256, "\nAcpiTable=0x%x ", (UINT32)(UINTN)Hob->Acpi.Table);
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// PrintString (PrintBuffer);
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Hob->Acpi20.Table = (EFI_PHYSICAL_ADDRESS)(UINTN)FindAcpiRsdPtr ();
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Hob->Smbios.Table = (EFI_PHYSICAL_ADDRESS)(UINTN)FindSMBIOSPtr ();
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// AsciiSPrint (PrintBuffer, 256, "SMBIOS Table=0x%x ", (UINT32)(UINTN)Hob->Smbios.Table);
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// PrintString (PrintBuffer);
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Hob->Mps.Table = (EFI_PHYSICAL_ADDRESS)(UINTN)FindMPSPtr ();
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// AsciiSPrint (PrintBuffer, 256, "MPS Table=0x%x\n", (UINT32)(UINTN)Hob->Mps.Table);
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// PrintString (PrintBuffer);
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PrepareMcfgTable (Hob);
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PrepareFadtTable (Hob);
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return ;
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}
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