338 lines
8.2 KiB
C
338 lines
8.2 KiB
C
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/*++
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Copyright (c) 1989 Microsoft Corporation
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Module Name:
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abiosc.c
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Abstract:
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This module implements keybaord detection C routines.
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Author:
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Shie-Lin Tzong (shielint) 18-Dec-1991
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Environment:
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Real Mode.
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Revision History:
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--*/
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#include "hwdetect.h"
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#include "string.h"
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extern
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UCHAR
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GetKeyboardFlags (
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VOID
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);
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extern
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USHORT
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HwGetKey (
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VOID
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);
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extern UCHAR NoLegacy;
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//
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// SavedKey is used to save the key left in the keyboard type-ahead buffer
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// before we start our keyboard/mouse tests. The key will be push back
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// to the type-ahead buffer once the mouse detection is done.
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//
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USHORT SavedKey = 0;
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BOOLEAN NoBiosKbdCheck=FALSE;
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//
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// String table to map keyboard id to an ascii string.
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//
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PUCHAR KeyboardIdentifier[] = {
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"UNKNOWN_KEYBOARD",
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"OLI_83KEY",
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"OLI_102KEY",
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"OLI_86KEY",
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"OLI_A101_102KEY",
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"XT_83KEY",
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"ATT_302",
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"PCAT_ENHANCED",
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"PCAT_86KEY",
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"PCXT_84KEY"
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};
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UCHAR KeyboardType[] = {
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255,
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1,
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2,
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3,
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4,
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1,
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1,
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4,
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3,
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1
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};
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UCHAR KeyboardSubtype[] = {
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255,
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0,
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1,
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10,
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4,
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42,
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4,
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0,
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0,
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0
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};
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USHORT
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GetKeyboardId(
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VOID
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)
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/*++
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Routine Description:
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This routine determines the Id of the keyboard. It calls GetKeyboardIdBytes
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to complete the task.
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Arguments:
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None.
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Return Value:
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Keyboard ID.
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--*/
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{
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char KeybID_Bytes[5];
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int Num_ID_Bytes;
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int keytype = UNKNOWN_KEYBOARD;
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SavedKey = HwGetKey();
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keytype = UNKNOWN_KEYBOARD;
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if (!NoBiosKbdCheck) {
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if (IsEnhancedKeyboard()) {
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keytype = PCAT_ENHANCED;
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}
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}
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if (keytype == UNKNOWN_KEYBOARD) {
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Num_ID_Bytes = GetKeyboardIdBytes(KeybID_Bytes, 0xf2);
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if (Num_ID_Bytes > 0) {
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if ((KeybID_Bytes[0] & 0x00ff) == 0xfa) {
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keytype = PCAT_86KEY;
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} else if ((KeybID_Bytes[0] & 0x00ff) == 0xfe) {
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keytype = PCAT_86KEY;
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} else if (Num_ID_Bytes >= 3 &&
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((KeybID_Bytes[1] & 0x00ff) == 0xAB) &&
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((KeybID_Bytes[2] & 0x00ff) == 0x41)) {
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keytype = PCAT_ENHANCED;
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} else {
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keytype = UNKNOWN_KEYBOARD;
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}
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} else {
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keytype = UNKNOWN_KEYBOARD;
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}
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}
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return keytype;
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}
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FPFWCONFIGURATION_COMPONENT_DATA
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SetKeyboardConfigurationData (
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USHORT KeyboardId
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)
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/*++
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Routine Description:
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This routine maps Keyboard Id information to an ASCII string and
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stores the string in configuration data heap.
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Arguments:
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KeyboardId - Supplies a USHORT which describes the keyboard id information.
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Buffer - Supplies a pointer to a buffer where to put the ascii.
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Returns:
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None.
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--*/
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{
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FPFWCONFIGURATION_COMPONENT_DATA Controller, CurrentEntry;
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FPFWCONFIGURATION_COMPONENT Component;
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HWCONTROLLER_DATA ControlData;
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FPHWRESOURCE_DESCRIPTOR_LIST DescriptorList;
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CM_KEYBOARD_DEVICE_DATA far *KeyboardData;
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USHORT z, Length;
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//
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// Set up Keyboard Controller component
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//
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ControlData.NumberPortEntries = 0;
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ControlData.NumberIrqEntries = 0;
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ControlData.NumberMemoryEntries = 0;
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ControlData.NumberDmaEntries = 0;
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z = 0;
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Controller = (FPFWCONFIGURATION_COMPONENT_DATA)HwAllocateHeap (
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sizeof(FWCONFIGURATION_COMPONENT_DATA), TRUE);
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Component = &Controller->ComponentEntry;
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Component->Class = ControllerClass;
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Component->Type = KeyboardController;
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Component->Flags.ConsoleIn = 1;
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Component->Flags.Input = 1;
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Component->Version = 0;
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Component->Key = 0;
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Component->AffinityMask = 0xffffffff;
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//
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// Only fill this on a machine which is not legacy free
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//
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if (!NoLegacy) {
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//
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// Set up Port information
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//
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ControlData.NumberPortEntries = 2;
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ControlData.DescriptorList[z].Type = RESOURCE_PORT;
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ControlData.DescriptorList[z].ShareDisposition =
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CmResourceShareDeviceExclusive;
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ControlData.DescriptorList[z].Flags = CM_RESOURCE_PORT_IO;
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#if defined(NEC_98)
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ControlData.DescriptorList[z].u.Port.Start.LowPart = 0x41;
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#else // PC98
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ControlData.DescriptorList[z].u.Port.Start.LowPart = 0x60;
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#endif // PC98
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ControlData.DescriptorList[z].u.Port.Start.HighPart = 0;
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ControlData.DescriptorList[z].u.Port.Length = 1;
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z++;
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ControlData.DescriptorList[z].Type = RESOURCE_PORT;
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ControlData.DescriptorList[z].ShareDisposition =
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CmResourceShareDeviceExclusive;
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ControlData.DescriptorList[z].Flags = CM_RESOURCE_PORT_IO;
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#if defined(NEC_98)
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ControlData.DescriptorList[z].u.Port.Start.LowPart = 0x43;
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#else // PC98
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ControlData.DescriptorList[z].u.Port.Start.LowPart = 0x64;
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#endif // PC98
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ControlData.DescriptorList[z].u.Port.Start.HighPart = 0;
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ControlData.DescriptorList[z].u.Port.Length = 1;
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z++;
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//
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// Set up Irq information
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//
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ControlData.NumberIrqEntries = 1;
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ControlData.DescriptorList[z].Type = RESOURCE_INTERRUPT;
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ControlData.DescriptorList[z].ShareDisposition =
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CmResourceShareUndetermined;
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ControlData.DescriptorList[z].u.Interrupt.Affinity = ALL_PROCESSORS;
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ControlData.DescriptorList[z].u.Interrupt.Level = 1;
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ControlData.DescriptorList[z].u.Interrupt.Vector = 1;
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if (HwBusType == MACHINE_TYPE_MCA) {
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ControlData.DescriptorList[z].Flags = LEVEL_SENSITIVE;
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} else {
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//
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// For EISA the LevelTriggered is temporarily set to FALSE.
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//
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ControlData.DescriptorList[z].Flags = EDGE_TRIGGERED;
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}
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Controller->ConfigurationData =
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HwSetUpResourceDescriptor(Component,
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NULL,
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&ControlData,
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0,
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NULL
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);
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}
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//
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// Set up Keyboard peripheral component
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//
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CurrentEntry = (FPFWCONFIGURATION_COMPONENT_DATA)HwAllocateHeap (
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sizeof(FWCONFIGURATION_COMPONENT_DATA), TRUE);
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Component = &CurrentEntry->ComponentEntry;
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Component->Class = PeripheralClass;
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Component->Type = KeyboardPeripheral;
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Component->Flags.ConsoleIn = 1;
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Component->Flags.Input = 1;
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Component->Version = 0;
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Component->Key = 0;
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Component->AffinityMask = 0xffffffff;
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Component->ConfigurationDataLength = 0;
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CurrentEntry->ConfigurationData = (FPVOID)NULL;
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Length = strlen(KeyboardIdentifier[KeyboardId]) + 1;
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Component->IdentifierLength = Length;
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Component->Identifier = HwAllocateHeap(Length, FALSE);
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_fstrcpy(Component->Identifier, KeyboardIdentifier[KeyboardId]);
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//
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// If we are running on a legacy free machine, we still want to report the
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// KeyboardFlags to NTOS
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//
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if (KeyboardId != UNKNOWN_KEYBOARD || NoLegacy) {
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Length = sizeof(HWRESOURCE_DESCRIPTOR_LIST) +
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sizeof(CM_KEYBOARD_DEVICE_DATA);
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DescriptorList = (FPHWRESOURCE_DESCRIPTOR_LIST)HwAllocateHeap(
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Length,
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TRUE);
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CurrentEntry->ConfigurationData = DescriptorList;
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Component->ConfigurationDataLength = Length;
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DescriptorList->Count = 1;
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DescriptorList->PartialDescriptors[0].Type = RESOURCE_DEVICE_DATA;
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DescriptorList->PartialDescriptors[0].u.DeviceSpecificData.DataSize =
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sizeof(CM_KEYBOARD_DEVICE_DATA);
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KeyboardData = (CM_KEYBOARD_DEVICE_DATA far *)(DescriptorList + 1);
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KeyboardData->KeyboardFlags = GetKeyboardFlags();
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KeyboardData->Type = KeyboardType[KeyboardId];
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KeyboardData->Subtype = KeyboardSubtype[KeyboardId];
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}
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Controller->Child = CurrentEntry;
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Controller->Sibling = NULL;
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CurrentEntry->Parent = Controller;
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CurrentEntry->Sibling = NULL;
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CurrentEntry->Child = NULL;
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return(Controller);
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}
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