667 lines
16 KiB
C
667 lines
16 KiB
C
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/*++
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Copyright (c) 1996 Microsoft Corporation
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Module Name:
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KBDHID.H
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Abstract:
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This module contains the PRIVATE (driver-only) definitions for the
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code that implements this sample client driver.
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Note: This is not a WDM driver as it will not run on Memphis (you need a
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vxd mapper to do keyboards for Memphis) and it uses event logs
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Environment:
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Kernel mode
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Revision History:
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Nov-96 : created by Kenneth D. Ray
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--*/
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#ifndef _KBDHID_H
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#define _KBDHID_H
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#include "ntddk.h"
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#include "hidusage.h"
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#include "hidpi.h"
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#include "ntddkbd.h"
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#include "kbdmou.h"
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#include "kbdhidm.h"
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#include "wmilib.h"
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//
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// Sometimes we allocate a bunch of structures together and need to split the
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// allocation among these different structures. Use this macro to get the
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// lengths of the different structures aligned properly
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//
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#if defined(_WIN64)
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// Round the
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#define ALIGNPTRLEN(x) ((x + 0x7) >> 3) << 3
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#else // defined(_WIN64)
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#define ALIGNPTRLEN(x) x
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#endif // defined(_WIN64)
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//
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// allow a device parameter in the dev node to override the reported keyboard
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// type, with a value of this name.
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//
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#define KEYBOARD_TYPE_OVERRIDE L"KeyboardTypeOverride"
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#define KEYBOARD_SUBTYPE_OVERRIDE L"KeyboardSubtypeOverride"
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#define KEYBOARD_NUMBER_TOTAL_KEYS_OVERRIDE L"KeyboardNumberTotalKeysOverride"
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#define KEYBOARD_NUMBER_FUNCTION_KEYS_OVERRIDE L"KeyboardNumberFunctionKeysOverride"
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#define KEYBOARD_NUMBER_INDICATORS_OVERRIDE L"KeyboardNumberIndicatorsOverride"
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//
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// Only allocate with a pool tag. Remember that NT and 95 are little endian
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// systmes.
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//
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#define KBDHID_POOL_TAG (ULONG) 'lCdH'
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#undef ExAllocatePool
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#define ExAllocatePool(type, size) \
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ExAllocatePoolWithTag (type, size, KBDHID_POOL_TAG);
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//
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// Registry ProblemFlags masks. [DAN]
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//
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#define PROBLEM_CHATTERY_KEYBOARD 0x00000001
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#define KEYBOARD_HW_CHATTERY_FIX 1 // [DAN]
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#if KEYBOARD_HW_CHATTERY_FIX // [DAN]
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//
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// Delay between StartRead calls for chattery keyboards.
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//
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// Note that the StartRead delay for chattery keyboards must be no greater
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// than KEYBOARD_TYPEMATIC_DELAY_MINIMUM milliseconds (250), otherwise the
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// keys on the keyboard will auto-repeat unexpectedly.
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//
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// 50ms will satisfy 212 words/minute (one word = 5 keystrokes), the world's
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// fastest typing speed as recorded in the 23rd Guiness Book of World Record.
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//
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#define DEFAULT_START_READ_DELAY (50 * 10000) // 50 miliseconds.
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#endif
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//
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// Declarations. [DAN]
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//
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#define HID_KEYBOARD_NUMBER_OF_FUNCTION_KEYS 12 // 12 "known" func-key usages
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#define HID_KEYBOARD_NUMBER_OF_KEYS_TOTAL 101 // 101 "known" key usages
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#define HID_KEYBOARD_IDENTIFIER_TYPE 81
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//
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// Flags to indicate whether read completed synchronously or asynchronously
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//
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#define KBDHID_START_READ 0x01
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#define KBDHID_END_READ 0x02
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#define KBDHID_IMMEDIATE_READ 0x03
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//
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// Statically allocate the (known) scancode-to-indicator-light mapping.
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// This information is returned by the
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// IOCTL_KEYBOARD_QUERY_INDICATOR_TRANSLATION device control request.
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//
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#define HID_KEYBOARD_NUMBER_OF_INDICATORS 3
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//
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// Default keyboard scan code mode (lifted from I8042PRT.H). [DAN]
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//
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#define HID_KEYBOARD_SCAN_CODE_SET 0x01
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//
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// Minimum, maximum, and default values for keyboard typematic rate and delay
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// (lifted from I8042PRT.H). [DAN]
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//
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#define HID_KEYBOARD_TYPEMATIC_RATE_MINIMUM 2
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#define HID_KEYBOARD_TYPEMATIC_RATE_MAXIMUM 30
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#define HID_KEYBOARD_TYPEMATIC_RATE_DEFAULT 30
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#define HID_KEYBOARD_TYPEMATIC_DELAY_MINIMUM 250
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#define HID_KEYBOARD_TYPEMATIC_DELAY_MAXIMUM 1000
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#define HID_KEYBOARD_TYPEMATIC_DELAY_DEFAULT 250
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static const INDICATOR_LIST IndicatorList[HID_KEYBOARD_NUMBER_OF_INDICATORS] = {
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{0x3A, KEYBOARD_CAPS_LOCK_ON},
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{0x45, KEYBOARD_NUM_LOCK_ON},
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{0x46, KEYBOARD_SCROLL_LOCK_ON}
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};
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//
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// Debugging levels
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//
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#define DBG_STARTUP_SHUTDOWN_MASK 0x0000000F
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#define DBG_SS_NOISE 0x00000001
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#define DBG_SS_TRACE 0x00000002
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#define DBG_SS_INFO 0x00000004
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#define DBG_SS_ERROR 0x00000008
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#define DBG_CALL_MASK 0x000000F0
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#define DBG_CALL_NOISE 0x00000010
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#define DBG_CALL_TRACE 0x00000020
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#define DBG_CALL_INFO 0x00000040
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#define DBG_CALL_ERROR 0x00000080
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#define DBG_IOCTL_MASK 0x00000F00
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#define DBG_IOCTL_NOISE 0x00000100
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#define DBG_IOCTL_TRACE 0x00000200
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#define DBG_IOCTL_INFO 0x00000400
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#define DBG_IOCTL_ERROR 0x00000800
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#define DBG_READ_MASK 0x0000F000
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#define DBG_READ_NOISE 0x00001000
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#define DBG_READ_TRACE 0x00002000
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#define DBG_READ_INFO 0x00004000
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#define DBG_READ_ERROR 0x00008000
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#define DBG_CREATE_CLOSE_MASK 0x000F0000
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#define DBG_CC_NOISE 0x00010000
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#define DBG_CC_TRACE 0x00020000
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#define DBG_CC_INFO 0x00040000
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#define DBG_CC_ERROR 0x00080000
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#define DBG_POWER_MASK 0x00F00000
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#define DBG_POWER_NOISE 0x00100000
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#define DBG_POWER_TRACE 0x00200000
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#define DBG_POWER_INFO 0x00400000
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#define DBG_POWER_ERROR 0x00800000
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#define DBG_PNP_MASK 0x0F000000
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#define DBG_PNP_NOISE 0x01000000
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#define DBG_PNP_TRACE 0x02000000
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#define DBG_PNP_INFO 0x04000000
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#define DBG_PNP_ERROR 0x08000000
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#define DBG_CANCEL_MASK 0xF0000000
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#define DBG_CANCEL_NOISE 0x10000000
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#define DBG_CANCEL_TRACE 0x20000000
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#define DBG_CANCEL_INFO 0x40000000
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#define DBG_CANCEL_ERROR 0x80000000
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#define DEFAULT_DEBUG_OUTPUT_LEVEL 0x88888888
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#if DBG
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#define Print(_l_, _x_) \
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if (Globals.DebugLevel & (_l_)) { \
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DbgPrint ("KbdHid: "); \
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DbgPrint _x_; \
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}
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#define TRAP() DbgBreakPoint()
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#else
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#define Print(_l_,_x_)
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#define TRAP()
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#endif
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#define MAX(_A_,_B_) (((_A_) < (_B_)) ? (_B_) : (_A_))
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#define MIN(_A_,_B_) (((_A_) < (_B_)) ? (_A_) : (_B_))
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//
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// Define the keyboard scan code input states.
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//
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typedef enum _KEYBOARD_SCAN_STATE {
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Normal,
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GotE0,
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GotE1
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} KEYBOARD_SCAN_STATE;
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//
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// Structures;
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//
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typedef struct _GLOBALS {
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#if DBG
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//
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// The level of trace output sent to the debugger. See HidCli_KdPrint above.
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//
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ULONG DebugLevel;
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#endif
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//
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// Pointer to this driver's null-terminated registry path.
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//
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UNICODE_STRING RegistryPath;
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//
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// Unit ID given to the keyboard class driver
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//
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ULONG UnitId;
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} GLOBALS;
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extern GLOBALS Globals;
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/*
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* The UsageMappingList is used to keep track of mappings
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* from incorrect to correct usage values (for broken keyboards).
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*/
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typedef struct UsageMappingList {
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USHORT sourceUsage, mappedUsage;
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struct UsageMappingList *next;
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} UsageMappingList;
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typedef struct _DEVICE_EXTENSION
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{
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//
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// A back pointer to the device extension.
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//
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PDEVICE_OBJECT Self;
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//
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// The top of the stack before this filter was added. AKA the location
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// to which all IRPS should be directed.
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//
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PDEVICE_OBJECT TopOfStack;
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//
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// "THE PDO" (ejected by Hidclass)
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//
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PDEVICE_OBJECT PDO;
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//
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// Flag indicating permission to send callbacks to the mouse class driver.
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//
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LONG EnableCount;
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//
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// Read interlock value to protect us from running out of stack space
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//
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ULONG ReadInterlock;
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//
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// Event used to synchronize the completion of the read irp and the close irp
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//
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KEVENT ReadCompleteEvent;
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//
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// Event used to indicate that a read irp has been sent and is now cancelable.
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//
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KEVENT ReadSentEvent;
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//
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// Has the device been taken out from under us?
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// Has it been started?
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//
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BOOLEAN Started;
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BOOLEAN ShuttingDown;
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BOOLEAN Initialized;
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USHORT UnitId;
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// Make this look like mouhid.h
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ULONG Reserved;
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//
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// Write and Feature Irps get passed straight down, but read Irps do not.
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// For this reason we keep around a read Irp, which we created.
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//
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PIRP ReadIrp;
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//
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// A pointer to the HID extension.
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//
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struct _HID_EXTENSION * HidExtension;
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//
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// Flags indicating problems with the keyboard HID device (such as
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// a chattery keyboard). [DAN]
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//
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ULONG ProblemFlags;
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//
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// A file pointer to be used for reading
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//
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PFILE_OBJECT ReadFile;
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//
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// Pointer to the mouse class device object and callback routine
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// above us, Used as the first parameter and the MouseClassCallback().
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// routine itself.
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//
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CONNECT_DATA ConnectData;
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//
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// Remove Lock object to project IRP_MN_REMOVE_DEVICE
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//
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IO_REMOVE_LOCK RemoveLock;
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//
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// A fast mutex to prevent Create from trouncing close, as one starts the
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// read loop and the other shuts it down.
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//
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FAST_MUTEX CreateCloseMutex;
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//
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// An event to halt the deletion of a device until it is ready to go.
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//
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KEVENT StartEvent;
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//
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// A place to store a single data packet so that we might hand it to the
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// keyclass driver.
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//
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KEYBOARD_INPUT_DATA InputData;
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KEYBOARD_SCAN_STATE ScanState;
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//
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// The attributes of this keyboard port [DAN]
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//
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KEYBOARD_ATTRIBUTES Attributes;
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//
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// The extended ID attributes of this keyboard port
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//
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KEYBOARD_ID_EX IdEx;
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//
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// The current state of the indicator lights [DAN]
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//
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KEYBOARD_INDICATOR_PARAMETERS Indicators;
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//
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// The typematic parameters [DAN]
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//
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KEYBOARD_TYPEMATIC_PARAMETERS Typematic;
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//
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// A timer DPC to do the autorepeat.
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//
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KDPC AutoRepeatDPC;
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KTIMER AutoRepeatTimer;
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LARGE_INTEGER AutoRepeatDelay;
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LONG AutoRepeatRate;
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#if KEYBOARD_HW_CHATTERY_FIX
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// Added new DPC routine to schedule intermittent StartReads.
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KDPC InitiateStartReadDPC;
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KTIMER InitiateStartReadTimer;
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LARGE_INTEGER InitiateStartReadDelay;
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BOOLEAN InitiateStartReadUserNotified;
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#endif
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//
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// An attachment point for the global list o devices
|
||
|
|
//
|
||
|
|
LIST_ENTRY Link;
|
||
|
|
|
||
|
|
//
|
||
|
|
// WMI Information
|
||
|
|
//
|
||
|
|
WMILIB_CONTEXT WmiLibInfo;
|
||
|
|
|
||
|
|
UsageMappingList *usageMapping;
|
||
|
|
KSPIN_LOCK usageMappingSpinLock;
|
||
|
|
|
||
|
|
} DEVICE_EXTENSION, * PDEVICE_EXTENSION;
|
||
|
|
|
||
|
|
typedef struct _HID_EXTENSION {
|
||
|
|
//
|
||
|
|
// The preparsed data associated with this hid device.
|
||
|
|
//
|
||
|
|
PHIDP_PREPARSED_DATA Ppd;
|
||
|
|
|
||
|
|
//
|
||
|
|
// The capabilities of this hid device
|
||
|
|
//
|
||
|
|
HIDP_CAPS Caps;
|
||
|
|
|
||
|
|
//
|
||
|
|
// The maximum number of usages that can be returned from a single read
|
||
|
|
// report.
|
||
|
|
ULONG MaxUsages;
|
||
|
|
|
||
|
|
//
|
||
|
|
// A place to keep the modifier keys. Used by the parser to translate from
|
||
|
|
// usages to i8042 codes.
|
||
|
|
//
|
||
|
|
HIDP_KEYBOARD_MODIFIER_STATE ModifierState;
|
||
|
|
|
||
|
|
//
|
||
|
|
// We need a place to put the current packet, being retreived or sent for
|
||
|
|
// input, output, or feature.
|
||
|
|
// In addition to a place to put the usages (keys pressed) returned from the
|
||
|
|
// keyboard, and a place to put the new strokes from the keyboard.
|
||
|
|
//
|
||
|
|
// Global buffers mean, of course, we cannot have overlapping read
|
||
|
|
// requests.
|
||
|
|
//
|
||
|
|
// Pointers into the buffer contained below.
|
||
|
|
PCHAR InputBuffer;
|
||
|
|
PUSAGE_AND_PAGE PreviousUsageList;
|
||
|
|
PUSAGE_AND_PAGE CurrentUsageList;
|
||
|
|
PUSAGE_AND_PAGE BreakUsageList;
|
||
|
|
PUSAGE_AND_PAGE MakeUsageList;
|
||
|
|
PUSAGE_AND_PAGE OldMakeUsageList;
|
||
|
|
PUSAGE_AND_PAGE ScrapBreakUsageList;
|
||
|
|
|
||
|
|
//
|
||
|
|
// An MDL describing the below contained buffer.
|
||
|
|
//
|
||
|
|
PMDL InputMdl;
|
||
|
|
|
||
|
|
//
|
||
|
|
// A buffer to hold an Input packet, Output packet, the Maximum Usages
|
||
|
|
// posible from a single hid packet, and
|
||
|
|
//
|
||
|
|
CHAR Buffer[];
|
||
|
|
} HID_EXTENSION, * PHID_EXTENSION;
|
||
|
|
|
||
|
|
//
|
||
|
|
// Prototypes
|
||
|
|
//
|
||
|
|
VOID
|
||
|
|
KbdHid_AutoRepeat (
|
||
|
|
IN PKDPC DPC,
|
||
|
|
IN PDEVICE_EXTENSION Data,
|
||
|
|
IN PVOID SystemArgument1,
|
||
|
|
IN PVOID SystemArgument2
|
||
|
|
);
|
||
|
|
|
||
|
|
#if KEYBOARD_HW_CHATTERY_FIX
|
||
|
|
VOID
|
||
|
|
KbdHid_InitiateStartRead (
|
||
|
|
IN PKDPC DPC,
|
||
|
|
IN PDEVICE_EXTENSION Data,
|
||
|
|
IN PVOID SystemArgument1,
|
||
|
|
IN PVOID SystemArgument2
|
||
|
|
);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
NTSTATUS
|
||
|
|
KbdHid_StartRead (
|
||
|
|
PDEVICE_EXTENSION Data
|
||
|
|
);
|
||
|
|
|
||
|
|
NTSTATUS
|
||
|
|
DriverEntry(
|
||
|
|
IN PDRIVER_OBJECT DriverObject,
|
||
|
|
IN PUNICODE_STRING RegistryPath
|
||
|
|
);
|
||
|
|
|
||
|
|
NTSTATUS
|
||
|
|
KbdHid_AddDevice (
|
||
|
|
IN PDRIVER_OBJECT KbdHidDriver, // The kbd Driver object.
|
||
|
|
IN PDEVICE_OBJECT PDO
|
||
|
|
);
|
||
|
|
|
||
|
|
|
||
|
|
NTSTATUS
|
||
|
|
KbdHid_Close (
|
||
|
|
IN PDEVICE_OBJECT DeviceObject,
|
||
|
|
IN PIRP Irp
|
||
|
|
);
|
||
|
|
|
||
|
|
NTSTATUS
|
||
|
|
KbdHid_Create (
|
||
|
|
IN PDEVICE_OBJECT DeviceObject,
|
||
|
|
IN PIRP Irp
|
||
|
|
);
|
||
|
|
|
||
|
|
NTSTATUS
|
||
|
|
KbdHid_SetLedIndicators (
|
||
|
|
PDEVICE_EXTENSION Data,
|
||
|
|
PKEYBOARD_INDICATOR_PARAMETERS Parameters,
|
||
|
|
PIRP Irp
|
||
|
|
);
|
||
|
|
|
||
|
|
NTSTATUS
|
||
|
|
KbdHid_CallHidClass(
|
||
|
|
IN PDEVICE_EXTENSION Data,
|
||
|
|
IN ULONG Ioctl,
|
||
|
|
PVOID InputBuffer,
|
||
|
|
ULONG InputBufferLength,
|
||
|
|
PVOID OutputBuffer,
|
||
|
|
ULONG OutputBufferLength
|
||
|
|
);
|
||
|
|
|
||
|
|
BOOLEAN
|
||
|
|
KbdHid_InsertCodesIntoQueue (
|
||
|
|
PDEVICE_EXTENSION Data,
|
||
|
|
PCHAR NewCodes,
|
||
|
|
ULONG Length
|
||
|
|
);
|
||
|
|
|
||
|
|
VOID
|
||
|
|
KbdHid_UpdateRegistryProblemFlags(
|
||
|
|
IN PDEVICE_EXTENSION Data
|
||
|
|
);
|
||
|
|
|
||
|
|
VOID
|
||
|
|
KbdHid_UpdateRegistryProblemFlagsCallback (
|
||
|
|
IN PDEVICE_OBJECT DeviceObject,
|
||
|
|
IN PIO_WORKITEM Item
|
||
|
|
);
|
||
|
|
|
||
|
|
VOID
|
||
|
|
KbdHid_LogError(
|
||
|
|
IN PDRIVER_OBJECT DriverObject,
|
||
|
|
IN NTSTATUS ErrorCode,
|
||
|
|
IN PWSTR ErrorInsertionString OPTIONAL
|
||
|
|
);
|
||
|
|
|
||
|
|
NTSTATUS
|
||
|
|
KbdHid_StartDevice (
|
||
|
|
IN PDEVICE_EXTENSION Data
|
||
|
|
);
|
||
|
|
|
||
|
|
NTSTATUS
|
||
|
|
KbdHid_PnP (
|
||
|
|
IN PDEVICE_OBJECT DeviceObject,
|
||
|
|
IN PIRP Irp
|
||
|
|
);
|
||
|
|
|
||
|
|
NTSTATUS
|
||
|
|
KbdHid_Power (
|
||
|
|
IN PDEVICE_OBJECT DeviceObject,
|
||
|
|
IN PIRP Irp
|
||
|
|
);
|
||
|
|
|
||
|
|
NTSTATUS
|
||
|
|
KbdHid_PnPComplete (
|
||
|
|
IN PDEVICE_OBJECT DeviceObject,
|
||
|
|
IN PIRP Irp,
|
||
|
|
IN PVOID Context
|
||
|
|
);
|
||
|
|
|
||
|
|
NTSTATUS
|
||
|
|
KbdHid_GetRegistryParameters ();
|
||
|
|
|
||
|
|
VOID
|
||
|
|
KbdHid_Unload(
|
||
|
|
IN PDRIVER_OBJECT Driver
|
||
|
|
);
|
||
|
|
|
||
|
|
NTSTATUS
|
||
|
|
KbdHid_IOCTL (
|
||
|
|
IN PDEVICE_OBJECT DeviceObject,
|
||
|
|
IN PIRP Irp
|
||
|
|
);
|
||
|
|
|
||
|
|
NTSTATUS
|
||
|
|
KbdHid_Flush (
|
||
|
|
IN PDEVICE_OBJECT DeviceObject,
|
||
|
|
IN PIRP Irp
|
||
|
|
);
|
||
|
|
|
||
|
|
NTSTATUS
|
||
|
|
KbdHid_Power (
|
||
|
|
IN PDEVICE_OBJECT DeviceObject,
|
||
|
|
IN PIRP Irp
|
||
|
|
);
|
||
|
|
|
||
|
|
NTSTATUS
|
||
|
|
KbdHid_PassThrough (
|
||
|
|
IN PDEVICE_OBJECT DeviceObject,
|
||
|
|
IN PIRP Irp
|
||
|
|
);
|
||
|
|
|
||
|
|
NTSTATUS
|
||
|
|
KbdHid_SystemControl(
|
||
|
|
IN PDEVICE_OBJECT DeviceObject,
|
||
|
|
IN PIRP Irp
|
||
|
|
);
|
||
|
|
|
||
|
|
NTSTATUS
|
||
|
|
KbdHid_SetWmiDataItem(
|
||
|
|
IN PDEVICE_OBJECT DeviceObject,
|
||
|
|
IN PIRP Irp,
|
||
|
|
IN ULONG GuidIndex,
|
||
|
|
IN ULONG InstanceIndex,
|
||
|
|
IN ULONG DataItemId,
|
||
|
|
IN ULONG BufferSize,
|
||
|
|
IN PUCHAR Buffer
|
||
|
|
);
|
||
|
|
|
||
|
|
NTSTATUS
|
||
|
|
KbdHid_SetWmiDataBlock(
|
||
|
|
IN PDEVICE_OBJECT DeviceObject,
|
||
|
|
IN PIRP Irp,
|
||
|
|
IN ULONG GuidIndex,
|
||
|
|
IN ULONG InstanceIndex,
|
||
|
|
IN ULONG BufferSize,
|
||
|
|
IN PUCHAR Buffer
|
||
|
|
);
|
||
|
|
|
||
|
|
NTSTATUS
|
||
|
|
KbdHid_QueryWmiDataBlock(
|
||
|
|
IN PDEVICE_OBJECT DeviceObject,
|
||
|
|
IN PIRP Irp,
|
||
|
|
IN ULONG GuidIndex,
|
||
|
|
IN ULONG InstanceIndex,
|
||
|
|
IN ULONG InstanceCount,
|
||
|
|
IN OUT PULONG InstanceLengthArray,
|
||
|
|
IN ULONG BufferAvail,
|
||
|
|
OUT PUCHAR Buffer
|
||
|
|
);
|
||
|
|
|
||
|
|
NTSTATUS
|
||
|
|
KbdHid_QueryWmiRegInfo(
|
||
|
|
IN PDEVICE_OBJECT DeviceObject,
|
||
|
|
OUT ULONG *RegFlags,
|
||
|
|
OUT PUNICODE_STRING InstanceName,
|
||
|
|
OUT PUNICODE_STRING *RegistryPath,
|
||
|
|
OUT PUNICODE_STRING MofResourceName,
|
||
|
|
OUT PDEVICE_OBJECT *Pdo
|
||
|
|
);
|
||
|
|
|
||
|
|
VOID LoadKeyboardUsageMappingList(PDEVICE_EXTENSION devExt);
|
||
|
|
VOID FreeKeyboardUsageMappingList(PDEVICE_EXTENSION devExt);
|
||
|
|
USHORT MapUsage(PDEVICE_EXTENSION devExt, USHORT kbdUsage);
|
||
|
|
NTSTATUS OpenSubkey(OUT PHANDLE Handle, IN HANDLE BaseHandle, IN PUNICODE_STRING KeyName, IN ACCESS_MASK DesiredAccess);
|
||
|
|
ULONG LAtoX(PWCHAR wHexString);
|
||
|
|
|
||
|
|
extern WMIGUIDREGINFO KbdHid_WmiGuidList[2];
|
||
|
|
|
||
|
|
#endif // _KBDHID_H
|