LUFA/Drivers/USB/Class/Device/HID.h

   1 /*
   2              LUFA Library
   3      Copyright (C) Dean Camera, 2009.
   4
   5   dean [at] fourwalledcubicle [dot] com
   6       www.fourwalledcubicle.com
   7 */
   8
   9 /*
  10   Copyright 2009  Dean Camera (dean [at] fourwalledcubicle [dot] com)
  11
  12   Permission to use, copy, modify, and distribute this software
  13   and its documentation for any purpose and without fee is hereby
  14   granted, provided that the above copyright notice appear in all
  15   copies and that both that the copyright notice and this
  16   permission notice and warranty disclaimer appear in supporting
  17   documentation, and that the name of the author not be used in
  18   advertising or publicity pertaining to distribution of the
  19   software without specific, written prior permission.
  20
  21   The author disclaim all warranties with regard to this
  22   software, including all implied warranties of merchantability
  23   and fitness.  In no event shall the author be liable for any
  24   special, indirect or consequential damages or any damages
  25   whatsoever resulting from loss of use, data or profits, whether
  26   in an action of contract, negligence or other tortious action,
  27   arising out of or in connection with the use or performance of
  28   this software.
  29 */
  30
  31 #ifndef _HID_CLASS_H_
  32 #define _HID_CLASS_H_
  33
  34         /* Includes: */
  35                 #include "../../USB.h"
  36
  37                 #include <string.h>
  38
  39         /* Enable C linkage for C++ Compilers: */
  40                 #if defined(__cplusplus)
  41                         extern "C" {
  42                 #endif
  43
  44         /* Macros: */
  45                 /** HID Class Specific Request to get the current HID report from the device. */
  46                 #define REQ_GetReport      0x01
  47
  48                 /** HID Class Specific Request to get the current device idle count. */
  49                 #define REQ_GetIdle        0x02
  50
  51                 /** HID Class Specific Request to set the current HID report to the device. */
  52                 #define REQ_SetReport      0x09
  53
  54                 /** HID Class Specific Request to set the device's idle count. */
  55                 #define REQ_SetIdle        0x0A
  56
  57                 /** HID Class Specific Request to get the current HID report protocol mode. */
  58                 #define REQ_GetProtocol    0x03
  59
  60                 /** HID Class Specific Request to set the current HID report protocol mode. */
  61                 #define REQ_SetProtocol    0x0B
  62
  63                 /** Descriptor header type value, to indicate a HID class HID descriptor. */
  64                 #define DTYPE_HID          0x21
  65
  66                 /** Descriptor header type value, to indicate a HID class HID report descriptor. */
  67                 #define DTYPE_Report       0x22
  68
  69         /* Type Defines: */
  70                 /** Type define for the HID class specific HID descriptor, to describe the HID device's specifications. Refer to the HID
  71                  *  specification for details on the structure elements.
  72                  */
  73                 typedef struct
  74                 {
  75                         USB_Descriptor_Header_t               Header;
  76
  77                         uint16_t                              HIDSpec;
  78                         uint8_t                               CountryCode;
  79
  80                         uint8_t                               TotalReportDescriptors;
  81
  82                         uint8_t                               HIDReportType;
  83                         uint16_t                              HIDReportLength;
  84                 } USB_Descriptor_HID_t;
  85
  86                 /** Type define for the data type used to store HID report descriptor elements. */
  87                 typedef uint8_t USB_Descriptor_HIDReport_Datatype_t;
  88
  89                 /** Class state structure. An instance of this structure should be made for each HID interface
  90                  *  within the user application, and passed to each of the HID class driver functions as the
  91                  *  HIDInterfaceInfo parameter. The contents of this structure should be set to their correct
  92                  *  values when used, or ommitted to force the library to use default values.
  93                  */
  94                 typedef struct
  95                 {
  96                         uint8_t  InterfaceNumber; /**< Interface number of the HID interface within the device */
  97
  98                         uint8_t  ReportINEndpointNumber; /**< Endpoint number of the HID interface's IN report endpoint */
  99                         uint16_t ReportINEndpointSize; /**< Size in bytes of the HID interface's IN report endpoint */
 100
 101                         uint8_t  ReportOUTEndpointNumber; /**< Endpoint number of the HID interface's OUT report endpoint, if used */
 102                         uint16_t ReportOUTEndpointSize;  /**< Size in bytes of the HID interface's OUT report endpoint, if used */
 103
 104                         uint8_t  ReportINBufferSize;
 105
 106                         bool     UsingReportProtocol; /**< Indicates if the HID interface is set to Boot or Report protocol mode */
 107                         uint16_t IdleCount; /**< Report idle period, in ms, set by the host */
 108                         uint16_t IdleMSRemaining; /**< Total number of ms remaining before the idle period elapses */
 109                 } USB_ClassInfo_HID_t;
 110
 111         /* Function Prototypes: */
 112                 bool USB_HID_ConfigureEndpoints(USB_ClassInfo_HID_t* HIDInterfaceInfo);
 113                 void USB_HID_ProcessControlPacket(USB_ClassInfo_HID_t* HIDInterfaceInfo);
 114                 void USB_HID_USBTask(USB_ClassInfo_HID_t* HIDInterfaceInfo);
 115
 116                 uint16_t CALLBACK_USB_HID_CreateNextHIDReport(USB_ClassInfo_HID_t* HIDInterfaceInfo, void* ReportData);
 117                 void     CALLBACK_USB_HID_ProcessReceivedHIDReport(USB_ClassInfo_HID_t* HIDInterfaceInfo, void* ReportData, uint16_t ReportSize);
 118
 119         /* Disable C linkage for C++ Compilers: */
 120                 #if defined(__cplusplus)
 121                         }
 122                 #endif
 123
 124 #endif