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ce47f986d8
NT4/private/ntos/boot/detect/i386/hwdetect.c
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2020-09-30 17:12:29 +02:00

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/*++
Copyright (c) 1990, 1991 Microsoft Corporation
Module Name:
hwdetect.c
Abstract:
This is the main hardware detection module. Its main function is
to detect various system hardware and build a configuration tree.
N.B. The configuration built in the detection module will needs to
be adjusted later before we switch to FLAT mode. The is because
all the "POINTER" is a far pointer instead of a flat pointer.
Author:
Shie-Lin Tzong (shielint) 16-Jan-92
Environment:
Real mode.
Revision History:
--*/
#include "hwdetect.h"
#include "pci.h"
#include <string.h>
#include "apm.h"
#if DBG
PUCHAR TypeName[] = {
"ArcSystem",
"CentralProcessor",
"FloatingPointProcessor",
"PrimaryICache",
"PrimaryDCache",
"SecondaryICache",
"SecondaryDCache",
"SecondaryCache",
"EisaAdapter",
"TcaAdapter",
"ScsiAdapter",
"DtiAdapter",
"MultifunctionAapter",
"DiskController",
"TapeController",
"CdRomController",
"WormController",
"SerialController",
"NetworkController",
"DisplayController",
"ParallelController",
"PointerController",
"KeyboardController",
"AudioController",
"OtherController",
"DiskPeripheral",
"FloppyDiskPeripheral",
"TapePeripheral",
"ModemPeripheral",
"MonitorPeripheral",
"PrinterPeraipheral",
"PointerPeripheral",
"KeyboardPeripheral",
"TerminalPeripheral",
"OtherPeripheral",
"LinePeripheral",
"NetworkPeripheral",
"SystemMemory",
"MaximumType"
};
VOID
CheckConfigurationTree(
FPFWCONFIGURATION_COMPONENT_DATA CurrentEntry
);
extern
USHORT
HwGetKey(
VOID
);
#endif
VOID
GetIrqFromEisaData(
FPFWCONFIGURATION_COMPONENT_DATA ControllerList,
CONFIGURATION_TYPE ControllerType
);
//
// HwBusType - defines the BUS type of the machine.
// This variable is used by detection code only.
//
USHORT HwBusType = 0;
//
// AdapterEntry is the Configuration_Component_data for the bus adapter
//
FPFWCONFIGURATION_COMPONENT_DATA AdapterEntry = NULL;
//
// FpRomBlock - A far pointer to our Rom Block
//
FPUCHAR FpRomBlock = NULL;
USHORT RomBlockLength = 0;
//
// HwMcaPosData - A far pointer to the POS data block of MCA machine
//
FPMCA_POS_DATA HwMcaPosData;
//
// HwEisaConfigurationData - A far pointer to the EISA configuration
// data on EISA machine.
//
FPUCHAR HwEisaConfigurationData = NULL;
ULONG HwEisaConfigurationSize = 0L;
//
// DisableSerialMice - A bit flags to indicate the comports whose serial
// mouse detection should be skipped.
//
USHORT DisableSerialMice = 0x0;
//
// Internal references and definitions.
//
typedef enum _RELATIONSHIP_FLAGS {
Child,
Sibling,
Parent
} RELATIONSHIP_FLAGS;
VOID
HardwareDetection(
ULONG HeapStart,
ULONG HeapSize,
ULONG ConfigurationTree,
ULONG HeapUsed,
ULONG OptionString,
ULONG OptionStringLength
)
/*++
Routine Description:
Main entrypoint of the HW recognizer test. The routine builds
a configuration tree and leaves it in the hardware heap.
Arguments:
HeapStart - Supplies the starting address of the configuaration heap.
HeapSize - Supplies the size of the heap in byte.
ConfigurationTree - Supplies a 32 bit FLAT address of the variable to
receive the hardware configuration tree.
HeapUsed - Supplies a 32 bit FLAT address of the variable to receive
the actual heap size in used.
OptionString - Supplies a 32 bit FLAT address of load option string.
OptionStringLength - Supplies the length of the OptionString
Returns:
None.
--*/
{
FPFWCONFIGURATION_COMPONENT_DATA ConfigurationRoot;
FPFWCONFIGURATION_COMPONENT_DATA FirstCom = NULL, FirstLpt = NULL;
FPFWCONFIGURATION_COMPONENT_DATA CurrentEntry, PreviousEntry;
FPFWCONFIGURATION_COMPONENT Component;
RELATIONSHIP_FLAGS NextRelationship;
CHAR Identifier[256];
USHORT BiosYear, BiosMonth, BiosDay;
PUCHAR MachineId;
USHORT Length, InitialLength, i, Count = 0;
FPCHAR IdentifierString;
PMOUSE_INFORMATION MouseInfo = 0;
USHORT KeyboardId = 0;
ULONG VideoAdapterType = 0;
FPULONG BlConfigurationTree = NULL;
FPULONG BlHeapUsed = NULL;
FPCHAR BlOptions, EndOptions;
PUCHAR RomChain;
FPUCHAR FpRomChain = NULL, ConfigurationData, EndConfigurationData;
SHORT FreeSize;
FPHWPARTIAL_RESOURCE_DESCRIPTOR Descriptor;
FPHWRESOURCE_DESCRIPTOR_LIST DescriptorList;
PCI_REGISTRY_INFO PciEntry;
APM_REGISTRY_INFO ApmEntry;
//
// First initialize our hardware heap.
//
HwInitializeHeap(HeapStart, HeapSize);
MAKE_FP(BlConfigurationTree, ConfigurationTree);
MAKE_FP(BlHeapUsed, HeapUsed);
MAKE_FP(BlOptions, OptionString);
//
// Parse OptionString and see if we need to disable serial mice detection.
//
if (BlOptions && OptionStringLength <= 0x1000L && OptionStringLength > 0L) {
EndOptions = BlOptions + OptionStringLength;
if (*EndOptions == '\0') {
do {
if (BlOptions = _fstrstr(BlOptions, "NOSERIALMICE")) {
BlOptions += strlen("NOSERIALMICE");
while ((*BlOptions == ' ') || (*BlOptions == ':') ||
(*BlOptions == '=')) {
BlOptions++;
}
if (*BlOptions == 'C' && BlOptions[1] == 'O' &&
BlOptions[2] == 'M') {
BlOptions += 3;
while (TRUE) {
while (*BlOptions != '\0' && (*BlOptions == ' ' ||
*BlOptions == ',' || *BlOptions == ';' ||
*BlOptions == '0')) {
BlOptions++;
}
if (*BlOptions >= '0' && *BlOptions <= '9') {
if (BlOptions[1] < '0' || BlOptions[1] > '9') {
DisableSerialMice |= 1 << (*BlOptions - '0');
BlOptions++;
} else {
BlOptions++;
while (*BlOptions && *BlOptions <= '9' &&
*BlOptions >= '0') {
BlOptions++;
}
}
}else {
break;
}
}
} else {
DisableSerialMice = 0xffff;
break;
}
}
} while (BlOptions && *BlOptions && (BlOptions < EndOptions)); // double checking
}
}
//
// Determine bus type
//
if (HwIsEisaSystem()) {
HwBusType = MACHINE_TYPE_EISA;
} else if (HwIsMcaSystem()) {
HwBusType = MACHINE_TYPE_MCA;
} else {
HwBusType = MACHINE_TYPE_ISA;
}
//
// Allocate heap space for System component and initialize it.
// Also make the System component the root of configuration tree.
//
#if DBG
clrscrn ();
BlPrint("Detecting System Component ...\n");
#endif
ConfigurationRoot = (FPFWCONFIGURATION_COMPONENT_DATA)HwAllocateHeap (
sizeof(FWCONFIGURATION_COMPONENT_DATA), TRUE);
Component = &ConfigurationRoot->ComponentEntry;
Component->Class = SystemClass;
Component->Type = MaximumType; // NOTE should be IsaCompatible
Component->Version = 0;
Component->Key = 0;
Component->AffinityMask = 0;
Component->ConfigurationDataLength = 0;
MachineId = GetMachineId();
if (MachineId) {
Length = strlen(MachineId) + 1;
IdentifierString = (FPCHAR)HwAllocateHeap(Length, FALSE);
_fstrcpy(IdentifierString, MachineId);
Component->Identifier = IdentifierString;
Component->IdentifierLength = Length;
} else {
Component->Identifier = 0;
Component->IdentifierLength = 0;
}
NextRelationship = Child;
PreviousEntry = ConfigurationRoot;
#if DBG
BlPrint("Reading BIOS date ...\n");
#endif
HwGetBiosDate (0xF0000, 0xFFFF, &BiosYear, &BiosMonth, &BiosDay);
#if DBG
BlPrint("Done reading BIOS date (%d/%d/%d)\n",
BiosMonth, BiosDay, BiosYear);
#endif
#if DBG
BlPrint("Detecting PCI Bus Component ...\n");
#endif
if (BiosYear > 1992 || (BiosYear == 1992 && BiosMonth >= 11) ) {
// Bios date valid for pci presence check..
HwGetPciSystemData((PVOID) &PciEntry, TRUE);
} else {
// Bios date not confirmed...
HwGetPciSystemData((PVOID) &PciEntry, FALSE);
}
//
// Add a registry entry for each PCI bus
//
for (i=0; i < PciEntry.NoBuses; i++) {
AdapterEntry = (FPFWCONFIGURATION_COMPONENT_DATA)HwAllocateHeap (
sizeof(FWCONFIGURATION_COMPONENT_DATA), TRUE);
Component = &AdapterEntry->ComponentEntry;
Component->Class = AdapterClass;
Component->Type = MultiFunctionAdapter;
strcpy (Identifier, "PCI");
Length = strlen(Identifier) + 1;
IdentifierString = (FPCHAR)HwAllocateHeap(Length, FALSE);
_fstrcpy(IdentifierString, Identifier);
Component->Version = 0;
Component->Key = 0;
Component->AffinityMask = 0xffffffff;
Component->IdentifierLength = Length;
Component->Identifier = IdentifierString;
AdapterEntry->ConfigurationData = NULL;
Component->ConfigurationDataLength = 0;
if (i == 0) {
//
// For the first PCI bus include the PCI_REGISTRY_INFO
//
Length = sizeof(PCI_REGISTRY_INFO) + DATA_HEADER_SIZE;
ConfigurationData = (FPUCHAR) HwAllocateHeap(Length, TRUE);
Component->ConfigurationDataLength = Length;
AdapterEntry->ConfigurationData = ConfigurationData;
_fmemcpy ( ((FPUCHAR) ConfigurationData+DATA_HEADER_SIZE),
(FPVOID) &PciEntry, sizeof (PCI_REGISTRY_INFO));
HwSetUpFreeFormDataHeader(
(FPHWRESOURCE_DESCRIPTOR_LIST) ConfigurationData,
0,
0,
0,
Length - DATA_HEADER_SIZE
);
}
//
// Add it to tree
//
if (NextRelationship == Sibling) {
PreviousEntry->Sibling = AdapterEntry;
AdapterEntry->Parent = PreviousEntry->Parent;
} else {
PreviousEntry->Child = AdapterEntry;
AdapterEntry->Parent = PreviousEntry;
}
NextRelationship = Sibling;
PreviousEntry = AdapterEntry;
}
#if DBG
BlPrint("Detecting PCI Bus Component completes ...\n");
#endif
#if _PNP_POWER_
#if DBG
BlPrint("Detecting APM Bus Component ...\n");
#endif
if (HwGetApmSystemData((PVOID) &ApmEntry)) {
AdapterEntry = (FPFWCONFIGURATION_COMPONENT_DATA)HwAllocateHeap (
sizeof(FWCONFIGURATION_COMPONENT_DATA), TRUE);
Component = &AdapterEntry->ComponentEntry;
Component->Class = AdapterClass;
Component->Type = MultiFunctionAdapter;
strcpy (Identifier, "APM");
Length = strlen(Identifier) + 1;
IdentifierString = (FPCHAR)HwAllocateHeap(Length, FALSE);
_fstrcpy(IdentifierString, Identifier);
Component->Version = 0;
Component->Key = 0;
Component->AffinityMask = 0xffffffff;
Component->IdentifierLength = Length;
Component->Identifier = IdentifierString;
AdapterEntry->ConfigurationData = NULL;
Component->ConfigurationDataLength = 0;
//
Length = sizeof(APM_REGISTRY_INFO) + DATA_HEADER_SIZE;
ConfigurationData = (FPUCHAR) HwAllocateHeap(Length, TRUE);
Component->ConfigurationDataLength = Length;
AdapterEntry->ConfigurationData = ConfigurationData;
_fmemcpy ( ((FPUCHAR) ConfigurationData+DATA_HEADER_SIZE),
(FPVOID) &ApmEntry, sizeof (APM_REGISTRY_INFO));
HwSetUpFreeFormDataHeader(
(FPHWRESOURCE_DESCRIPTOR_LIST) ConfigurationData,
0,
0,
0,
Length - DATA_HEADER_SIZE
);
//
// Add it to tree
//
if (NextRelationship == Sibling) {
PreviousEntry->Sibling = AdapterEntry;
AdapterEntry->Parent = PreviousEntry->Parent;
} else {
PreviousEntry->Child = AdapterEntry;
AdapterEntry->Parent = PreviousEntry;
}
NextRelationship = Sibling;
PreviousEntry = AdapterEntry;
}
#if DBG
BlPrint("APM Data collection complete...\n");
#endif // DBG
#endif // _PNP_POWER_
#if DBG
BlPrint("Detecting PnP BIOS Bus Component ...\n");
#endif
if (HwGetPnpBiosSystemData(&ConfigurationData, &Length)) {
AdapterEntry = (FPFWCONFIGURATION_COMPONENT_DATA)HwAllocateHeap (
sizeof(FWCONFIGURATION_COMPONENT_DATA), TRUE);
AdapterEntry->ConfigurationData = ConfigurationData;
Component = &AdapterEntry->ComponentEntry;
Component->ConfigurationDataLength = Length;
Component->Class = AdapterClass;
Component->Type = MultiFunctionAdapter;
strcpy (Identifier, "PNP BIOS");
i = strlen(Identifier) + 1;
IdentifierString = (FPCHAR)HwAllocateHeap(i, FALSE);
_fstrcpy(IdentifierString, Identifier);
Component->Version = 0;
Component->Key = 0;
Component->AffinityMask = 0xffffffff;
Component->IdentifierLength = i;
Component->Identifier = IdentifierString;
HwSetUpFreeFormDataHeader(
(FPHWRESOURCE_DESCRIPTOR_LIST) ConfigurationData,
0,
0,
0,
Length - DATA_HEADER_SIZE
);
//
// Add it to tree
//
if (NextRelationship == Sibling) {
PreviousEntry->Sibling = AdapterEntry;
AdapterEntry->Parent = PreviousEntry->Parent;
} else {
PreviousEntry->Child = AdapterEntry;
AdapterEntry->Parent = PreviousEntry;
}
NextRelationship = Sibling;
PreviousEntry = AdapterEntry;
}
#if DBG
BlPrint("PnP BIOS Data collection complete...\n");
#endif // DBG
//
// Allocate heap space for Bus component and initialize it.
//
#if DBG
BlPrint("Detecting Bus/Adapter Component ...\n");
#endif
AdapterEntry = (FPFWCONFIGURATION_COMPONENT_DATA)HwAllocateHeap (
sizeof(FWCONFIGURATION_COMPONENT_DATA), TRUE);
Component = &AdapterEntry->ComponentEntry;
Component->Class = AdapterClass;
//
// The assumption here is that the machine has only one
// type of IO bus. If a machine has more than one types of
// IO buses, it will not use this detection code anyway.
//
if (HwBusType == MACHINE_TYPE_EISA) {
//
// Note We don't collect EISA config data here. Because we may
// exhaust the heap space. We will collect the data after all
// the other components are detected.
//
Component->Type = EisaAdapter;
strcpy(Identifier, "EISA");
AdapterEntry->ConfigurationData = NULL;
Component->ConfigurationDataLength = 0;
} else if (HwBusType == MACHINE_TYPE_MCA) {
Component->Type = MultiFunctionAdapter;
strcpy(Identifier, "MCA");
GetMcaPosData(&AdapterEntry->ConfigurationData,
&Component->ConfigurationDataLength);
HwMcaPosData = (FPMCA_POS_DATA)
((FPUCHAR)AdapterEntry->ConfigurationData + DATA_HEADER_SIZE);
} else {
//
// If not EISA or MCA, it must be ISA
//
Component->Type = MultiFunctionAdapter;
strcpy(Identifier, "ISA");
}
Length = strlen(Identifier) + 1;
IdentifierString = (FPCHAR)HwAllocateHeap(Length, FALSE);
_fstrcpy(IdentifierString, Identifier);
Component->Version = 0;
Component->Key = 0;
Component->AffinityMask = 0xffffffff;
Component->IdentifierLength = Length;
Component->Identifier = IdentifierString;
//
// Make Adapter component System's child
//
if (NextRelationship == Sibling) {
PreviousEntry->Sibling = AdapterEntry;
AdapterEntry->Parent = PreviousEntry->Parent;
} else {
PreviousEntry->Child = AdapterEntry;
AdapterEntry->Parent = PreviousEntry;
}
NextRelationship = Child;
PreviousEntry = AdapterEntry;
//
// Collect BIOS information for ConfigurationRoot component.
// This step is done here because we need data collected in
// adapter component. The ConfigurationData is:
// HWRESOURCE_DESCRIPTOR_LIST header
// HWPARTIAL_RESOURCE_DESCRIPTOR for Parameter Table
// HWPARTIAL_RESOURCE_DESCRIPTOR for Rom Blocks.
// (Note DATA_HEADER_SIZE contains the size of the first partial
// descriptor already.)
//
#if DBG
BlPrint("Collecting Disk Geometry...\n");
#endif
GetInt13DriveParameters((PVOID)&RomChain, &Length);
InitialLength = (USHORT)(Length + RESERVED_ROM_BLOCK_LIST_SIZE + DATA_HEADER_SIZE +
sizeof(HWPARTIAL_RESOURCE_DESCRIPTOR));
ConfigurationData = (FPUCHAR)HwAllocateHeap(InitialLength, FALSE);
EndConfigurationData = ConfigurationData + DATA_HEADER_SIZE;
if (Length != 0) {
FpRomChain = EndConfigurationData;
_fmemcpy(FpRomChain, (FPVOID)RomChain, Length);
}
EndConfigurationData += (sizeof(HWPARTIAL_RESOURCE_DESCRIPTOR) +
Length);
HwSetUpFreeFormDataHeader((FPHWRESOURCE_DESCRIPTOR_LIST)ConfigurationData,
0,
0,
0,
Length
);
//
// Scan ROM to collect all the ROM blocks, if possible.
//
#if DBG
BlPrint("Detecting ROM Blocks...\n");
#endif
FpRomBlock = EndConfigurationData;
GetRomBlocks(FpRomBlock, &Length);
RomBlockLength = Length;
if (Length != 0) {
EndConfigurationData += Length;
} else {
FpRomBlock = NULL;
}
//
// We have both RomChain and RomBlock information/Headers.
//
DescriptorList = (FPHWRESOURCE_DESCRIPTOR_LIST)ConfigurationData;
DescriptorList->Count = 2;
Descriptor = (FPHWPARTIAL_RESOURCE_DESCRIPTOR)(
EndConfigurationData - Length -
sizeof(HWPARTIAL_RESOURCE_DESCRIPTOR));
Descriptor->Type = RESOURCE_DEVICE_DATA;
Descriptor->ShareDisposition = 0;
Descriptor->Flags = 0;
Descriptor->u.DeviceSpecificData.DataSize = (ULONG)Length;
Descriptor->u.DeviceSpecificData.Reserved1 = 0;
Descriptor->u.DeviceSpecificData.Reserved2 = 0;
Length = (USHORT)(MAKE_FLAT_ADDRESS(EndConfigurationData) -
MAKE_FLAT_ADDRESS(ConfigurationData));
ConfigurationRoot->ComponentEntry.ConfigurationDataLength = Length;
ConfigurationRoot->ConfigurationData = ConfigurationData;
FreeSize = InitialLength - Length;
HwFreeHeap((ULONG)FreeSize);
//
// Set up device information structure for Keyboard.
//
#if DBG
BlPrint("Detecting Keyboard Component ...\n");
#endif
KeyboardId = GetKeyboardId();
CurrentEntry = SetKeyboardConfigurationData(KeyboardId);
//
// Make display component the child of Adapter component.
//
if (NextRelationship == Sibling) {
PreviousEntry->Sibling = CurrentEntry;
CurrentEntry->Parent = PreviousEntry->Parent;
} else {
PreviousEntry->Child = CurrentEntry;
CurrentEntry->Parent = PreviousEntry;
}
NextRelationship = Sibling;
PreviousEntry = CurrentEntry;
//
// Set up device information for com port (Each COM component
// is treated as a controller class.)
//
#if DBG
BlPrint("Detecting ComPort Component ...\n");
#endif
if (CurrentEntry = GetComportInformation()) {
FirstCom = CurrentEntry;
//
// Make current component the child of Adapter component.
//
if (NextRelationship == Sibling) {
PreviousEntry->Sibling = CurrentEntry;
} else {
PreviousEntry->Child = CurrentEntry;
}
while (CurrentEntry) {
CurrentEntry->Parent = AdapterEntry;
PreviousEntry = CurrentEntry;
CurrentEntry = CurrentEntry->Sibling;
}
NextRelationship = Sibling;
}
//
// Set up device information for parallel port. (Each parallel
// is treated as a controller class.)
//
#if DBG
BlPrint("Detecting Parallel Component ...\n");
#endif
if (CurrentEntry = GetLptInformation()) {
FirstLpt = CurrentEntry;
//
// Make current component the child of Adapter component.
//
if (NextRelationship == Sibling) {
PreviousEntry->Sibling = CurrentEntry;
CurrentEntry->Parent = PreviousEntry->Parent;
} else {
PreviousEntry->Child = CurrentEntry;
CurrentEntry->Parent = PreviousEntry;
}
PreviousEntry = CurrentEntry;
CurrentEntry = CurrentEntry->Sibling;
while (CurrentEntry) {
CurrentEntry->Parent = PreviousEntry->Parent;
PreviousEntry = CurrentEntry;
CurrentEntry = CurrentEntry->Sibling;
}
NextRelationship = Sibling;
}
//
// Set up device information structure for Mouse.
//
#if DBG
BlPrint("Detecting Mouse Component ...\n");
#endif
if (CurrentEntry = GetMouseInformation()) {
//
// Make current component the child of Adapter component.
//
if (NextRelationship == Sibling) {
PreviousEntry->Sibling = CurrentEntry;
CurrentEntry->Parent = PreviousEntry->Parent;
} else {
PreviousEntry->Child = CurrentEntry;
CurrentEntry->Parent = PreviousEntry;
}
PreviousEntry = CurrentEntry;
CurrentEntry = CurrentEntry->Sibling;
while (CurrentEntry) {
CurrentEntry->Parent = PreviousEntry->Parent;
PreviousEntry = CurrentEntry;
CurrentEntry = CurrentEntry->Sibling;
}
NextRelationship = Sibling;
}
//
// Set up device information for floppy drives. (The returned information
// is a tree structure.)
//
#if DBG
BlPrint("Detecting Floppy Component ...\n");
#endif
if (CurrentEntry = GetFloppyInformation()) {
//
// Make current component the child of Adapter component.
//
if (NextRelationship == Sibling) {
PreviousEntry->Sibling = CurrentEntry;
} else {
PreviousEntry->Child = CurrentEntry;
}
while (CurrentEntry) {
CurrentEntry->Parent = AdapterEntry;
PreviousEntry = CurrentEntry;
CurrentEntry = CurrentEntry->Sibling;
}
NextRelationship = Sibling;
}
//
// Set up device information structure for Video Display Adapter.
//
#if DBG
BlPrint("Detection done. Press a key to display hardware info ...\n");
while ( ! HwGetKey ());
clrscrn ();
// BlPrint("Detecting Video Component ...\n");
#endif
#if 0 // Remove video detection
if (VideoAdapterType = GetVideoAdapterType()) {
CurrentEntry = SetVideoConfigurationData(VideoAdapterType);
//
// Make display component the child of Adapter component.
//
if (NextRelationship == Sibling) {
PreviousEntry->Sibling = CurrentEntry;
CurrentEntry->Parent = PreviousEntry->Parent;
} else {
PreviousEntry->Child = CurrentEntry;
CurrentEntry->Parent = PreviousEntry;
}
NextRelationship = Sibling;
PreviousEntry = CurrentEntry;
}
#endif
//
// Misc. supports. Note, the information collected here will NOT be
// written to hardware registry.
//
// 1. Collect video font information for vdm
//
GetVideoFontInformation();
//
// After all the components are detected, we collect EISA config data.
//
if (HwBusType == MACHINE_TYPE_EISA) {
Component = &AdapterEntry->ComponentEntry;
GetEisaConfigurationData(&AdapterEntry->ConfigurationData,
&Component->ConfigurationDataLength);
if (Component->ConfigurationDataLength) {
HwEisaConfigurationData = (FPUCHAR)AdapterEntry->ConfigurationData +
DATA_HEADER_SIZE;
HwEisaConfigurationSize = Component->ConfigurationDataLength -
DATA_HEADER_SIZE;
//
// Misc. detections based on Eisa config data
//
// Update Lpt and com controllers' irq information by examining
// the EISA configuration data.
//
GetIrqFromEisaData(FirstLpt, ParallelController);
GetIrqFromEisaData(FirstCom, SerialController);
}
}
#if DBG
CheckConfigurationTree(ConfigurationRoot);
#endif
//
// Update all the far pointers in the tree to flat 32 bit pointers
//
UpdateConfigurationTree(ConfigurationRoot);
//
// Set up returned values:
// Size of Heap space which should be preserved for configuration tree
// Pointer to the root of the configuration tree.
//
CurrentEntry = (FPFWCONFIGURATION_COMPONENT_DATA)HwAllocateHeap(0, FALSE);
*BlHeapUsed = MAKE_FLAT_ADDRESS(CurrentEntry) -
MAKE_FLAT_ADDRESS(ConfigurationRoot);
*BlConfigurationTree = (ULONG)MAKE_FLAT_ADDRESS(ConfigurationRoot);
}
VOID
GetIrqFromEisaData(
FPFWCONFIGURATION_COMPONENT_DATA ControllerList,
CONFIGURATION_TYPE ControllerType
)
/*++
Routine Description:
This routine updates all irq information for ControllerType components
in the controllerList by examinine the eisa configuration data.
Arguments:
ControllerList - Supplies a pointer to a component entry whoes irq will
be updated.
ControllerType - Supplies the controller type whoes irq will be searched
for.
Returns:
None.
--*/
{
FPFWCONFIGURATION_COMPONENT_DATA CurrentEntry;
FPHWPARTIAL_RESOURCE_DESCRIPTOR Descriptor;
FPHWRESOURCE_DESCRIPTOR_LIST DescriptorList;
USHORT i, Port;
UCHAR Irq, Trigger;
CurrentEntry = ControllerList;
while (CurrentEntry &&
CurrentEntry->ComponentEntry.Type == ControllerType) {
if (CurrentEntry->ConfigurationData) {
DescriptorList = (FPHWRESOURCE_DESCRIPTOR_LIST)
CurrentEntry->ConfigurationData;
Port = 0;
for (i = 0; i < (USHORT)DescriptorList->Count; i++) {
Descriptor = &DescriptorList->PartialDescriptors[i];
if (Descriptor->Type == CmResourceTypePort) {
Port = (USHORT)Descriptor->u.Port.Start.LowPart;
break;
}
}
if (Port != 0) {
for (i = 0; i < (USHORT)DescriptorList->Count; i++) {
Descriptor = &DescriptorList->PartialDescriptors[i];
if (Descriptor->Type == CmResourceTypeInterrupt) {
if (HwEisaGetIrqFromPort(Port, &Irq, &Trigger)) {
if (Trigger == 0) { // EISA EDGE_TRIGGER
Descriptor->Flags = EDGE_TRIGGERED;
} else {
Descriptor->Flags = LEVEL_SENSITIVE;
}
Descriptor->u.Interrupt.Level = Irq;
Descriptor->u.Interrupt.Vector = Irq;
break;
}
}
}
}
}
CurrentEntry = CurrentEntry->Sibling;
}
}
VOID
UpdateComponentPointers(
FPFWCONFIGURATION_COMPONENT_DATA CurrentEntry
)
/*++
Routine Description:
This routine updates all the "far" pointer to 32 bit flat addresses
for a component entry.
Arguments:
CurrentEntry - Supplies a pointer to a component entry which will
be updated.
Returns:
None.
--*/
{
FPULONG UpdatePointer;
FPVOID NextEntry;
ULONG FlatAddress;
//
// Update the child, parent, sibling and ConfigurationData
// far pointers to 32 bit flat addresses.
// N.B. After we update the pointers to flat addresses, they
// can no longer be accessed in real mode.
//
UpdatePointer = (FPULONG)&CurrentEntry->Child;
NextEntry = (FPVOID)CurrentEntry->Child;
FlatAddress = MAKE_FLAT_ADDRESS(NextEntry);
*UpdatePointer = FlatAddress;
UpdatePointer = (FPULONG)&CurrentEntry->Parent;
NextEntry = (FPVOID)CurrentEntry->Parent;
FlatAddress = MAKE_FLAT_ADDRESS(NextEntry);
*UpdatePointer = FlatAddress;
UpdatePointer = (FPULONG)&CurrentEntry->Sibling;
NextEntry = (FPVOID)CurrentEntry->Sibling;
FlatAddress = MAKE_FLAT_ADDRESS(NextEntry);
*UpdatePointer = FlatAddress;
UpdatePointer = (FPULONG)&CurrentEntry->ComponentEntry.Identifier;
NextEntry = (FPVOID)CurrentEntry->ComponentEntry.Identifier;
FlatAddress = MAKE_FLAT_ADDRESS(NextEntry);
*UpdatePointer = FlatAddress;
UpdatePointer = (FPULONG)&CurrentEntry->ConfigurationData;
NextEntry = (FPVOID)CurrentEntry->ConfigurationData;
FlatAddress = MAKE_FLAT_ADDRESS(NextEntry);
*UpdatePointer = FlatAddress;
}
VOID
UpdateConfigurationTree(
FPFWCONFIGURATION_COMPONENT_DATA CurrentEntry
)
/*++
Routine Description:
This routine traverses loader configuration tree and changes
all the "far" pointer to 32 bit flat addresses.
Arguments:
CurrentEntry - Supplies a pointer to a loader configuration
tree or subtree.
Returns:
None.
--*/
{
if (CurrentEntry) {
UpdateConfigurationTree(CurrentEntry->Child);
UpdateConfigurationTree(CurrentEntry->Sibling);
UpdateComponentPointers(CurrentEntry);
}
}
FPVOID
HwSetUpResourceDescriptor (
FPFWCONFIGURATION_COMPONENT Component,
PUCHAR Identifier,
PHWCONTROLLER_DATA ControlData,
USHORT SpecificDataLength,
PUCHAR SpecificData
)
/*++
Routine Description:
This routine allocates space from far heap , puts the caller's controller
information to the space and sets up CONFIGURATION_COMPONENT
structure for the caller.
Arguments:
Component - Supplies the address the component whose configuration data
should be set up.
Identifier - Suppies a pointer to the identifier to identify the controller
ControlData - Supplies a point to a structure which describes
controller information.
SpecificDataLength - size of the device specific data. Device specific
data is the information not defined in the standard format.
SpecificData - Supplies a pointer to the device specific data.
Return Value:
Returns a far pointer to the Configuration data.
--*/
{
FPCHAR fpIdentifier;
FPHWRESOURCE_DESCRIPTOR_LIST fpDescriptor = NULL;
USHORT Length;
SHORT Count, i;
FPUCHAR fpSpecificData;
//
// Set up Identifier string for hardware component, if necessary.
//
if (Identifier) {
Length = strlen(Identifier) + 1;
Component->IdentifierLength = Length;
fpIdentifier = (FPUCHAR)HwAllocateHeap(Length, FALSE);
Component->Identifier = fpIdentifier;
_fstrcpy(fpIdentifier, Identifier);
} else {
Component->IdentifierLength = 0;
Component->Identifier = NULL;
}
//
// Set up configuration data for hardware component, if necessary
//
Count = ControlData->NumberPortEntries + ControlData->NumberIrqEntries +
ControlData->NumberMemoryEntries + ControlData->NumberDmaEntries;
if (SpecificDataLength) {
//
// if we have device specific data, we need to increment the count
// by one.
//
Count++;
}
if (Count >0) {
Length = (USHORT)(Count * sizeof(HWPARTIAL_RESOURCE_DESCRIPTOR) +
FIELD_OFFSET(HWRESOURCE_DESCRIPTOR_LIST, PartialDescriptors) +
SpecificDataLength);
fpDescriptor = (FPHWRESOURCE_DESCRIPTOR_LIST)HwAllocateHeap(Length, TRUE);
fpDescriptor->Count = Count;
//
// Copy all the partial descriptors to the destination descriptors
// except the last one. (The last partial descriptor may be a device
// specific data. It requires special handling.)
//
for (i = 0; i < (Count - 1); i++) {
fpDescriptor->PartialDescriptors[i] =
ControlData->DescriptorList[i];
}
//
// Set up the last partial descriptor. If it is a port, memory, irq or
// dma entry, we simply copy it. If the last one is for device specific
// data, we set up the length and copy the device spcific data to the end
// of the decriptor.
//
if (SpecificData) {
fpDescriptor->PartialDescriptors[Count - 1].Type =
RESOURCE_DEVICE_DATA;
fpDescriptor->PartialDescriptors[Count - 1].Flags = 0;
fpDescriptor->PartialDescriptors[Count - 1].u.DeviceSpecificData.DataSize =
SpecificDataLength;
fpSpecificData = (FPUCHAR)&(fpDescriptor->PartialDescriptors[Count]);
_fmemcpy(fpSpecificData, SpecificData, SpecificDataLength);
} else {
fpDescriptor->PartialDescriptors[Count - 1] =
ControlData->DescriptorList[Count - 1];
}
Component->ConfigurationDataLength = Length;
}
return(fpDescriptor);
}
VOID
HwSetUpFreeFormDataHeader (
FPHWRESOURCE_DESCRIPTOR_LIST Header,
USHORT Version,
USHORT Revision,
USHORT Flags,
ULONG DataSize
)
/*++
Routine Description:
This routine initialize free formed data header. Note this routine
sets the the Header and initialize the FIRST PartialDescriptor only.
If the header contains more than one descriptor, the caller must handle
it itself.
Arguments:
Header - Supplies a pointer to the header to be initialized.
Version - Version number for the header.
Revision - Revision number for the header.
Flags - Free formed data flags. (Currently, it is undefined and
should be zero.)
DataSize - Size of the free formed data.
Return Value:
None.
--*/
{
Header->Version = Version;
Header->Revision = Revision;
Header->Count = 1;
Header->PartialDescriptors[0].Type = RESOURCE_DEVICE_DATA;
Header->PartialDescriptors[0].ShareDisposition = 0;
Header->PartialDescriptors[0].Flags = Flags;
Header->PartialDescriptors[0].u.DeviceSpecificData.DataSize = DataSize;
Header->PartialDescriptors[0].u.DeviceSpecificData.Reserved1 = 0;
Header->PartialDescriptors[0].u.DeviceSpecificData.Reserved2 = 0;
}
#if DBG
VOID
CheckComponentNode(
FPFWCONFIGURATION_COMPONENT_DATA CurrentEntry
)
{
FPUCHAR NextEntry, DataPointer;
ULONG FlatAddress;
ULONG Length;
UCHAR IdString[40];
USHORT Count, i;
UCHAR Type;
FPHWRESOURCE_DESCRIPTOR_LIST DescriptorList;
FPHWPARTIAL_RESOURCE_DESCRIPTOR Descriptor;
FlatAddress = MAKE_FLAT_ADDRESS(CurrentEntry);
clrscrn ();
BlPrint("\n");
BlPrint("Current Node: %lx\n", FlatAddress);
BlPrint(" Type = %s\n", TypeName[CurrentEntry->ComponentEntry.Type]);
//
// Update the child, parent, sibling and ConfigurationData
// far pointers to 32 bit flat addresses.
// N.B. After we update the pointers to flat addresses, they
// can no longer be accessed in real mode.
//
NextEntry = (FPUCHAR)CurrentEntry->Child;
FlatAddress = MAKE_FLAT_ADDRESS(NextEntry);
if (FlatAddress > 0x60000 || (FlatAddress < 0x50000 && FlatAddress != 0)) {
BlPrint("Invalid address: Child = %lx\n", FlatAddress);
} else {
BlPrint("\tChild = %lx\n", FlatAddress);
}
NextEntry = (FPUCHAR)CurrentEntry->Parent;
FlatAddress = MAKE_FLAT_ADDRESS(NextEntry);
if (FlatAddress > 0x60000 || (FlatAddress < 0x50000 && FlatAddress != 0)) {
BlPrint("Invalid address: Parent = %lx\n", FlatAddress);
} else {
BlPrint("\tParent = %lx\n", FlatAddress);
}
NextEntry = (FPUCHAR)CurrentEntry->Sibling;
FlatAddress = MAKE_FLAT_ADDRESS(NextEntry);
if (FlatAddress > 0x60000 || (FlatAddress < 0x50000 && FlatAddress != 0)) {
BlPrint("Invalid address: Sibling = %lx\n", FlatAddress);
} else {
BlPrint("\tSibling = %lx\n", FlatAddress);
}
NextEntry = (FPUCHAR)CurrentEntry->ConfigurationData;
FlatAddress = MAKE_FLAT_ADDRESS(NextEntry);
if (FlatAddress > 0x60000 || (FlatAddress < 0x50000 && FlatAddress != 0)) {
BlPrint("Invalid address: ConfigurationData = %lx\n", FlatAddress);
} else {
BlPrint("\tConfigurationData = %lx\n", FlatAddress);
}
Length = CurrentEntry->ComponentEntry.IdentifierLength;
BlPrint("IdentifierLength = %lx\n", CurrentEntry->ComponentEntry.IdentifierLength);
if (Length > 0) {
_fstrcpy(IdString, CurrentEntry->ComponentEntry.Identifier);
BlPrint("Identifier = %s\n", IdString);
}
Length = CurrentEntry->ComponentEntry.ConfigurationDataLength;
BlPrint("ConfigdataLength = %lx\n", Length);
if (Length > 0) {
DescriptorList = (FPHWRESOURCE_DESCRIPTOR_LIST)CurrentEntry->ConfigurationData;
BlPrint("Version = %x, Revision = %x\n", DescriptorList->Version,
DescriptorList->Revision);
Count = (USHORT)DescriptorList->Count;
Descriptor = &DescriptorList->PartialDescriptors[0];
BlPrint("Count = %x\n", Count);
while (Count > 0) {
Type = Descriptor->Type;
if (Type == RESOURCE_PORT) {
BlPrint("Type = Port");
BlPrint("\tShareDisposition = %x\n", Descriptor->ShareDisposition);
BlPrint("PortFlags = %x\n", Descriptor->Flags);
BlPrint("PortStart = %x", Descriptor->u.Port.Start);
BlPrint("\tPortLength = %x\n", Descriptor->u.Port.Length);
} else if (Type == RESOURCE_DMA) {
BlPrint("Type = Dma");
BlPrint("\tShareDisposition = %x\n", Descriptor->ShareDisposition);
BlPrint("DmaFlags = %x\n", Descriptor->Flags);
BlPrint("DmaChannel = %x", Descriptor->u.Dma.Channel);
BlPrint("\tDmaPort = %lx\n", Descriptor->u.Dma.Port);
} else if (Type == RESOURCE_INTERRUPT) {
BlPrint("Type = Interrupt");
BlPrint("\tShareDisposition = %x\n", Descriptor->ShareDisposition);
BlPrint("InterruptFlags = %x\n", Descriptor->Flags);
BlPrint("Level = %x", Descriptor->u.Interrupt.Level);
BlPrint("\tVector = %x\n", Descriptor->u.Interrupt.Vector);
} else if (Type == RESOURCE_MEMORY) {
BlPrint("Type = Memory");
BlPrint("\tShareDisposition = %x\n", Descriptor->ShareDisposition);
BlPrint("MemoryFlags = %x\n", Descriptor->Flags);
BlPrint("Start1 = %lx", (ULONG)Descriptor->u.Memory.Start.LowPart);
BlPrint("\tStart2 = %lx", (ULONG)Descriptor->u.Memory.Start.HighPart);
BlPrint("\tLength = %lx\n", Descriptor->u.Memory.Length);
} else {
BlPrint("Type = Device Data\n");
Length = Descriptor->u.DeviceSpecificData.DataSize;
BlPrint("Size = %lx\n", Length);
DataPointer = (FPUCHAR)(Descriptor+1);
for (i = 0; i < Length && i < 64; i++) {
BlPrint("%x ", *DataPointer);
DataPointer++;
}
break;
}
Count--;
Descriptor++;
}
}
while (HwGetKey() == 0) {
}
}
VOID
CheckConfigurationTree(
FPFWCONFIGURATION_COMPONENT_DATA CurrentEntry
)
{
if (CurrentEntry) {
CheckComponentNode(CurrentEntry);
CheckConfigurationTree(CurrentEntry->Sibling);
CheckConfigurationTree(CurrentEntry->Child);
}
}
#endif
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