hidpi.h

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/*
 * hidpi.h
 *
 * Public Interface for HID parsing library.
 *
 * This file is part of the w32api package.
 *
 * Contributors:
 *   Created by Casper S. Hornstrup <[e-mail]>
 *
 * THIS SOFTWARE IS NOT COPYRIGHTED
 *
 * This source code is offered for use in the public domain. You may
 * use, modify or distribute it freely.
 *
 * This code is distributed in the hope that it will be useful but
 * WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY
 * DISCLAIMED. This includes but is not limited to warranties of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 *
 */

#ifndef __HIDPI_H
#define __HIDPI_H

#if __GNUC__ >=3
#pragma GCC system_header
#endif

#ifdef __cplusplus
extern "C" {
#endif

#include "ntddk.h"
#include "hidusage.h"

#if defined(_HIDPI_)
  #define HIDAPI DECLSPEC_EXPORT
#else
  #define HIDAPI DECLSPEC_IMPORT
#endif

typedef PUCHAR PHIDP_REPORT_DESCRIPTOR;
typedef struct _HIDP_PREPARSED_DATA * PHIDP_PREPARSED_DATA;

typedef struct _HIDP_UNKNOWN_TOKEN {
  UCHAR  Token;
  UCHAR  Reserved[3];
  ULONG  BitField;
} HIDP_UNKNOWN_TOKEN, *PHIDP_UNKNOWN_TOKEN;

typedef enum _HIDP_KEYBOARD_DIRECTION {
  HidP_Keyboard_Break,
  HidP_Keyboard_Make
} HIDP_KEYBOARD_DIRECTION;

typedef struct _HIDP_KEYBOARD_MODIFIER_STATE {
  _ANONYMOUS_UNION union {
    _ANONYMOUS_STRUCT struct {
      ULONG  LeftControl : 1;
      ULONG  LeftShift : 1;
      ULONG  LeftAlt : 1;
      ULONG  LeftGUI : 1;
      ULONG  RightControl : 1;
      ULONG  RightShift : 1;
      ULONG  RightAlt : 1;
      ULONG  RigthGUI : 1;
      ULONG  CapsLock : 1;
      ULONG  ScollLock : 1;
      ULONG  NumLock : 1;
      ULONG  Reserved : 21;
    } DUMMYSTRUCTNAME;
    ULONG ul;
  } DUMMYUNIONNAME;
} HIDP_KEYBOARD_MODIFIER_STATE, *PHIDP_KEYBOARD_MODIFIER_STATE;

typedef BOOLEAN (DDKAPI *PHIDP_INSERT_SCANCODES)(
  /*IN*/ PVOID  Context,
  /*IN*/ PCHAR  NewScanCodes,
  /*IN*/ ULONG  Length);

typedef struct _USAGE_AND_PAGE {
  USAGE  Usage;
  USAGE  UsagePage;
} USAGE_AND_PAGE, *PUSAGE_AND_PAGE;

HIDAPI
NTSTATUS
DDKAPI
HidP_TranslateUsageAndPagesToI8042ScanCodes(
  /*IN*/ PUSAGE_AND_PAGE  ChangedUsageList,
  /*IN*/ ULONG  UsageListLength,
  /*IN*/ HIDP_KEYBOARD_DIRECTION  KeyAction,
  /*IN OUT*/ PHIDP_KEYBOARD_MODIFIER_STATE  ModifierState,
  /*IN*/ PHIDP_INSERT_SCANCODES  InsertCodesProcedure,
  /*IN*/ PVOID  InsertCodesContext);

HIDAPI
NTSTATUS
DDKAPI
HidP_TranslateUsagesToI8042ScanCodes(
  /*IN*/ PUSAGE  ChangedUsageList,
  /*IN*/ ULONG  UsageListLength,
  /*IN*/ HIDP_KEYBOARD_DIRECTION  KeyAction,
  /*IN OUT*/ PHIDP_KEYBOARD_MODIFIER_STATE  ModifierState,
  /*IN*/ PHIDP_INSERT_SCANCODES  InsertCodesProcedure,
  /*IN*/ PVOID  InsertCodesContext);

typedef struct _HIDP_BUTTON_CAPS {
  USAGE  UsagePage;
  UCHAR  ReportID;
  BOOLEAN  IsAlias;
  USHORT  BitField;
  USHORT  LinkCollection;
  USAGE  LinkUsage;
  USAGE  LinkUsagePage;
  BOOLEAN  IsRange;
  BOOLEAN  IsStringRange;
  BOOLEAN  IsDesignatorRange;
  BOOLEAN  IsAbsolute;
  ULONG  Reserved[10];
  _ANONYMOUS_UNION union {
    struct {
      USAGE  UsageMin, UsageMax;
      USHORT  StringMin, StringMax;
      USHORT  DesignatorMin, DesignatorMax;
      USHORT  DataIndexMin, DataIndexMax;
    } Range;
    struct  {
       USAGE  Usage, Reserved1;
       USHORT  StringIndex, Reserved2;
       USHORT  DesignatorIndex, Reserved3;
       USHORT  DataIndex, Reserved4;
    } NotRange;
  } DUMMYUNIONNAME;
} HIDP_BUTTON_CAPS, *PHIDP_BUTTON_CAPS;

typedef struct _HIDP_CAPS {
  USAGE  Usage;
  USAGE  UsagePage;
  USHORT  InputReportByteLength;
  USHORT  OutputReportByteLength;
  USHORT  FeatureReportByteLength;
  USHORT  Reserved[17];
  USHORT  NumberLinkCollectionNodes;
  USHORT  NumberInputButtonCaps;
  USHORT  NumberInputValueCaps;
  USHORT  NumberInputDataIndices;
  USHORT  NumberOutputButtonCaps;
  USHORT  NumberOutputValueCaps;
  USHORT  NumberOutputDataIndices;
  USHORT  NumberFeatureButtonCaps;
  USHORT  NumberFeatureValueCaps;
  USHORT  NumberFeatureDataIndices;
} HIDP_CAPS, *PHIDP_CAPS;

typedef struct _HIDP_DATA {
  USHORT  DataIndex;
  USHORT  Reserved;
  _ANONYMOUS_UNION union {
    ULONG  RawValue;
    BOOLEAN  On;
  }  DUMMYUNIONNAME;
} HIDP_DATA, *PHIDP_DATA;

typedef struct _HIDP_EXTENDED_ATTRIBUTES {
  UCHAR  NumGlobalUnknowns;
  UCHAR  Reserved[3];
  PHIDP_UNKNOWN_TOKEN  GlobalUnknowns;
  ULONG  Data[1];
} HIDP_EXTENDED_ATTRIBUTES, *PHIDP_EXTENDED_ATTRIBUTES;

#define HIDP_LINK_COLLECTION_ROOT         ((USHORT) -1)
#define HIDP_LINK_COLLECTION_UNSPECIFIED  ((USHORT) 0)

typedef struct _HIDP_LINK_COLLECTION_NODE {
  USAGE  LinkUsage;
  USAGE  LinkUsagePage;
  USHORT  Parent;
  USHORT  NumberOfChildren;
  USHORT  NextSibling;
  USHORT  FirstChild;
  ULONG  CollectionType: 8;
  ULONG  IsAlias: 1;
  ULONG  Reserved: 23;
  PVOID  UserContext;
} HIDP_LINK_COLLECTION_NODE, *PHIDP_LINK_COLLECTION_NODE;

typedef struct _HIDP_VALUE_CAPS {
  USAGE  UsagePage;
  UCHAR  ReportID;
  BOOLEAN  IsAlias;
  USHORT  BitField;
  USHORT  LinkCollection;
  USAGE  LinkUsage;
  USAGE  LinkUsagePage;
  BOOLEAN  IsRange;
  BOOLEAN  IsStringRange;
  BOOLEAN  IsDesignatorRange;
  BOOLEAN  IsAbsolute;
  BOOLEAN  HasNull;
  UCHAR  Reserved;
  USHORT  BitSize;
  USHORT  ReportCount;
  USHORT  Reserved2[5];
  ULONG  UnitsExp;
  ULONG  Units;
  LONG  LogicalMin, LogicalMax;
  LONG  PhysicalMin, PhysicalMax;
    _ANONYMOUS_UNION union {
      struct {
        USAGE  UsageMin, UsageMax;
        USHORT  StringMin, StringMax;
        USHORT  DesignatorMin, DesignatorMax;
        USHORT  DataIndexMin, DataIndexMax;
      } Range;
      struct {
        USAGE  Usage, Reserved1;
        USHORT  StringIndex, Reserved2;
        USHORT  DesignatorIndex, Reserved3;
        USHORT  DataIndex, Reserved4;
      } NotRange;
    } DUMMYUNIONNAME;
} HIDP_VALUE_CAPS, *PHIDP_VALUE_CAPS;

typedef enum _HIDP_REPORT_TYPE {
  HidP_Input,
  HidP_Output,
  HidP_Feature
} HIDP_REPORT_TYPE;

#define FACILITY_HID_ERROR_CODE           0x11

#define HIDP_ERROR_CODES(SEV, CODE) \
  ((NTSTATUS) (((SEV) << 28) | (FACILITY_HID_ERROR_CODE << 16) | (CODE)))

#define HIDP_STATUS_SUCCESS                 (HIDP_ERROR_CODES(0x0, 0))
#define HIDP_STATUS_NULL                    (HIDP_ERROR_CODES(0x8, 1))
#define HIDP_STATUS_INVALID_PREPARSED_DATA  (HIDP_ERROR_CODES(0xC, 1))
#define HIDP_STATUS_INVALID_REPORT_TYPE     (HIDP_ERROR_CODES(0xC, 2))
#define HIDP_STATUS_INVALID_REPORT_LENGTH   (HIDP_ERROR_CODES(0xC, 3))
#define HIDP_STATUS_USAGE_NOT_FOUND         (HIDP_ERROR_CODES(0xC, 4))
#define HIDP_STATUS_VALUE_OUT_OF_RANGE      (HIDP_ERROR_CODES(0xC, 5))
#define HIDP_STATUS_BAD_LOG_PHY_VALUES      (HIDP_ERROR_CODES(0xC, 6))
#define HIDP_STATUS_BUFFER_TOO_SMALL        (HIDP_ERROR_CODES(0xC, 7))
#define HIDP_STATUS_INTERNAL_ERROR          (HIDP_ERROR_CODES(0xC, 8))
#define HIDP_STATUS_I8042_TRANS_UNKNOWN     (HIDP_ERROR_CODES(0xC, 9))
#define HIDP_STATUS_INCOMPATIBLE_REPORT_ID  (HIDP_ERROR_CODES(0xC, 0xA))
#define HIDP_STATUS_NOT_VALUE_ARRAY         (HIDP_ERROR_CODES(0xC, 0xB))
#define HIDP_STATUS_IS_VALUE_ARRAY          (HIDP_ERROR_CODES(0xC, 0xC))
#define HIDP_STATUS_DATA_INDEX_NOT_FOUND    (HIDP_ERROR_CODES(0xC, 0xD))
#define HIDP_STATUS_DATA_INDEX_OUT_OF_RANGE (HIDP_ERROR_CODES(0xC, 0xE))
#define HIDP_STATUS_BUTTON_NOT_PRESSED      (HIDP_ERROR_CODES(0xC, 0xF))
#define HIDP_STATUS_REPORT_DOES_NOT_EXIST   (HIDP_ERROR_CODES(0xC, 0x10))
#define HIDP_STATUS_NOT_IMPLEMENTED         (HIDP_ERROR_CODES(0xC, 0x20))
#define HIDP_STATUS_I8242_TRANS_UNKNOWN     HIDP_STATUS_I8042_TRANS_UNKNOWN



/*
 * NTSTATUS
 * HidP_GetButtonCaps(
 * IN HIDP_REPORT_TYPE  ReportType,
 * OUT PHIDP_BUTTON_CAPS  ButtonCaps,
 * IN OUT PULONG  ButtonCapsLength,
 * IN PHIDP_PREPARSED_DATA  PreparsedData);
 */
#define HidP_GetButtonCaps(_Type_, _Caps_, _Len_, _Data_) \
  HidP_GetSpecificButtonCaps(_Type_, 0, 0, 0, _Caps_, _Len_, _Data_)

/*
 * NTSTATUS
 * HidP_GetButtons(
 * IN HIDP_REPORT_TYPE  ReportType,
 * IN USAGE  UsagePage,
 * IN USHORT  LinkCollection,
 * OUT USAGE  *UsageList,
 * IN OUT ULONG  *UsageLength,
 * IN PHIDP_PREPARSED_DATA  PreparsedData,
 * IN PCHAR  Report,
 * IN ULONG  ReportLength);
 */
#define HidP_GetButtons(Rty, UPa, LCo, ULi, ULe, Ppd, Rep, RLe) \
  HidP_GetUsages(Rty, UPa, LCo, ULi, ULe, Ppd, Rep, RLe)

#define HidP_GetButtonListLength(RTy, UPa, Ppd) \
  HidP_GetUsageListLength(Rty, UPa, Ppd)


/*
 * NTSTATUS
 * HidP_GetButtonsEx(
 * IN HIDP_REPORT_TYPE  ReportType,
 * IN USHORT  LinkCollection,
 * OUT PUSAGE_AND_PAGE  ButtonList,
 * IN OUT ULONG  *UsageLength,
 * IN PHIDP_PREPARSED_DATA  PreparsedData,
 * IN PCHAR  Report,
 * IN ULONG  ReportLength);
 */
#define HidP_GetButtonsEx(RT, LC, BL, UL, PD, R, RL)  \
  HidP_GetUsagesEx(RT, LC, BL, UL, PD, R, RL)