Microsoft/NT4
Microsoft/NT4
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
ce47f986d8
NT4/private/ntos/boot/detect/i386/keybdc.c
Microsoft ce47f986d8 First commit
2020-09-30 17:12:29 +02:00

357 lines
8.7 KiB
C
Raw Blame History

/*++
Copyright (c) 1989 Microsoft Corporation
Module Name:
abiosc.c
Abstract:
This module implements keybaord detection C routines.
Author:
Shie-Lin Tzong (shielint) 18-Dec-1991
Environment:
Real Mode.
Revision History:
--*/
#include "hwdetect.h"
#include "string.h"
extern
UCHAR
GetKeyboardFlags (
VOID
);
extern
USHORT
HwGetKey (
VOID
);
extern BOOLEAN NoBiosKbdCheck;
//
// SavedKey is used to save the key left in the keyboard type-ahead buffer
// before we start our keyboard/mouse tests. The key will be push back
// to the type-ahead buffer once the mouse detection is done.
//
USHORT SavedKey = 0;
//
// String table to map keyboard id to an ascii string.
//
PUCHAR KeyboardIdentifier[] = {
"UNKNOWN_KEYBOARD",
"OLI_83KEY",
"OLI_102KEY",
"OLI_86KEY",
"OLI_A101_102KEY",
"XT_83KEY",
"ATT_302",
"PCAT_ENHANCED",
"PCAT_86KEY",
"PCXT_84KEY"
};
UCHAR KeyboardType[] = {
-1,
1,
2,
3,
4,
1,
1,
4,
3,
1
};
UCHAR KeyboardSubtype[] = {
-1,
0,
1,
10,
4,
42,
4,
0,
0,
0
};
USHORT
GetKeyboardId(
VOID
)
/*++
Routine Description:
This routine determines the Id of the keyboard. It calls GetKeyboardIdBytes
to complete the task.
Arguments:
None.
Return Value:
Keyboard ID.
--*/
{
char KeybID_Bytes[5];
int Num_ID_Bytes;
int keytype = UNKNOWN_KEYBOARD;
SavedKey = HwGetKey();
Num_ID_Bytes = GetKeyboardIdBytes(KeybID_Bytes, 0x05);
if (Num_ID_Bytes > 0) {
switch(KeybID_Bytes[0] & 0x00ff) {
case 0x02:
keytype = OLI_83KEY;
break;
case 0x01:
keytype = OLI_102KEY;
break;
case 0x10:
keytype = OLI_86KEY;
break;
case 0x40:
keytype = OLI_A101_102KEY;
break;
case 0x42:
keytype = XT_83KEY;
break;
case 0x9c:
keytype = PCXT_84KEY;
break;
case 0x04:
keytype = ATT_302;
break;
case 0xfe:
Num_ID_Bytes = GetKeyboardIdBytes(KeybID_Bytes, 0xf2);
if (Num_ID_Bytes > 0) {
if ((KeybID_Bytes[0] & 0x00ff) == 0xfa) {
keytype = PCAT_86KEY;
} else if ((KeybID_Bytes[0] & 0x00ff) == 0xfe) {
keytype = PCAT_86KEY;
} else if (Num_ID_Bytes >= 3 &&
((KeybID_Bytes[1] & 0x00ff) == 0xAB) &&
((KeybID_Bytes[2] & 0x00ff) == 0x41)) {
keytype = PCAT_ENHANCED;
} else {
keytype = UNKNOWN_KEYBOARD;
}
} else {
keytype = UNKNOWN_KEYBOARD;
}
break;
default:
keytype = UNKNOWN_KEYBOARD;
break;
}
} else {
keytype = PCXT_84KEY;
}
if (!NoBiosKbdCheck) {
//
// Sometimes enhanced keyboards get detected as 84/86 key keyboards
// So we will look into the ROM DATA area (40:96) and see if the
// Enhanced Keyboard bit is set. If it is we will assume that the
// detection failed to detect the presence of an enhanced keyb.
//
if ((keytype == PCXT_84KEY) ||
(keytype == PCAT_86KEY) ||
(keytype == UNKNOWN_KEYBOARD)) {
if (IsEnhancedKeyboard()) {
keytype = PCAT_ENHANCED;
}
}
}
return(keytype);
}
FPFWCONFIGURATION_COMPONENT_DATA
SetKeyboardConfigurationData (
USHORT KeyboardId
)
/*++
Routine Description:
This routine maps Keyboard Id information to an ASCII string and
stores the string in configuration data heap.
Arguments:
KeyboardId - Supplies a USHORT which describes the keyboard id information.
Buffer - Supplies a pointer to a buffer where to put the ascii.
Returns:
None.
--*/
{
FPFWCONFIGURATION_COMPONENT_DATA Controller, CurrentEntry;
FPFWCONFIGURATION_COMPONENT Component;
HWCONTROLLER_DATA ControlData;
FPHWRESOURCE_DESCRIPTOR_LIST DescriptorList;
CM_KEYBOARD_DEVICE_DATA far *KeyboardData;
USHORT z, Length;
//
// Set up Keyboard COntroller component
//
ControlData.NumberPortEntries = 0;
ControlData.NumberIrqEntries = 0;
ControlData.NumberMemoryEntries = 0;
ControlData.NumberDmaEntries = 0;
z = 0;
Controller = (FPFWCONFIGURATION_COMPONENT_DATA)HwAllocateHeap (
sizeof(FWCONFIGURATION_COMPONENT_DATA), TRUE);
Component = &Controller->ComponentEntry;
Component->Class = ControllerClass;
Component->Type = KeyboardController;
Component->Flags.ConsoleIn = 1;
Component->Flags.Input = 1;
Component->Version = 0;
Component->Key = 0;
Component->AffinityMask = 0xffffffff;
//
// Set up Port information
//
ControlData.NumberPortEntries = 2;
ControlData.DescriptorList[z].Type = RESOURCE_PORT;
ControlData.DescriptorList[z].ShareDisposition =
CmResourceShareDeviceExclusive;
ControlData.DescriptorList[z].Flags = CM_RESOURCE_PORT_IO;
ControlData.DescriptorList[z].u.Port.Start.LowPart = 0x60;
ControlData.DescriptorList[z].u.Port.Start.HighPart = 0;
ControlData.DescriptorList[z].u.Port.Length = 1;
z++;
ControlData.DescriptorList[z].Type = RESOURCE_PORT;
ControlData.DescriptorList[z].ShareDisposition =
CmResourceShareDeviceExclusive;
ControlData.DescriptorList[z].Flags = CM_RESOURCE_PORT_IO;
ControlData.DescriptorList[z].u.Port.Start.LowPart = 0x64;
ControlData.DescriptorList[z].u.Port.Start.HighPart = 0;
ControlData.DescriptorList[z].u.Port.Length = 1;
z++;
//
// Set up Irq information
//
ControlData.NumberIrqEntries = 1;
ControlData.DescriptorList[z].Type = RESOURCE_INTERRUPT;
ControlData.DescriptorList[z].ShareDisposition =
CmResourceShareUndetermined;
ControlData.DescriptorList[z].u.Interrupt.Affinity = ALL_PROCESSORS;
ControlData.DescriptorList[z].u.Interrupt.Level = 1;
ControlData.DescriptorList[z].u.Interrupt.Vector = 1;
if (HwBusType == MACHINE_TYPE_MCA) {
ControlData.DescriptorList[z].Flags = LEVEL_SENSITIVE;
} else {
//
// For EISA the LevelTriggered is temporarily set to FALSE.
//
ControlData.DescriptorList[z].Flags = EDGE_TRIGGERED;
}
Controller->ConfigurationData =
HwSetUpResourceDescriptor(Component,
NULL,
&ControlData,
0,
NULL
);
//
// Set up Keyboard peripheral component
//
CurrentEntry = (FPFWCONFIGURATION_COMPONENT_DATA)HwAllocateHeap (
sizeof(FWCONFIGURATION_COMPONENT_DATA), TRUE);
Component = &CurrentEntry->ComponentEntry;
Component->Class = PeripheralClass;
Component->Type = KeyboardPeripheral;
Component->Flags.ConsoleIn = 1;
Component->Flags.Input = 1;
Component->Version = 0;
Component->Key = 0;
Component->AffinityMask = 0xffffffff;
Component->ConfigurationDataLength = 0;
CurrentEntry->ConfigurationData = (FPVOID)NULL;
Length = strlen(KeyboardIdentifier[KeyboardId]) + 1;
Component->IdentifierLength = Length;
Component->Identifier = HwAllocateHeap(Length, FALSE);
_fstrcpy(Component->Identifier, KeyboardIdentifier[KeyboardId]);
if (KeyboardId != UNKNOWN_KEYBOARD) {
Length = sizeof(HWRESOURCE_DESCRIPTOR_LIST) +
sizeof(CM_KEYBOARD_DEVICE_DATA);
DescriptorList = (FPHWRESOURCE_DESCRIPTOR_LIST)HwAllocateHeap(
Length,
TRUE);
CurrentEntry->ConfigurationData = DescriptorList;
Component->ConfigurationDataLength = Length;
DescriptorList->Count = 1;
DescriptorList->PartialDescriptors[0].Type = RESOURCE_DEVICE_DATA;
DescriptorList->PartialDescriptors[0].u.DeviceSpecificData.DataSize =
sizeof(CM_KEYBOARD_DEVICE_DATA);
KeyboardData = (CM_KEYBOARD_DEVICE_DATA far *)(DescriptorList + 1);
KeyboardData->KeyboardFlags = GetKeyboardFlags();
KeyboardData->Type = KeyboardType[KeyboardId];
KeyboardData->Subtype = KeyboardSubtype[KeyboardId];
}
Controller->Child = CurrentEntry;
Controller->Sibling = NULL;
CurrentEntry->Parent = Controller;
CurrentEntry->Sibling = NULL;
CurrentEntry->Child = NULL;
return(Controller);
}
Reference in New Issue View Git Blame Copy Permalink