HID.h

00001 
00002 #ifndef HID_H
00003 #define HID_H
00004 
00005 #include "USBHost.h"
00006 
00007 #ifndef u8
00008 typedef unsigned char u8;
00009 typedef unsigned short u16;
00010 typedef unsigned long u32;
00011 
00012 typedef char s8;
00013 typedef short s16;
00014 typedef char s32;
00015 #endif
00016 
00017 
00018 
00019 
00020 enum mode{ INPUT=0x81, OUTPUT=0x91, FEATURE=0xB1};
00021 
00022 typedef struct
00023 {
00024  u8 Usage;
00025  u8 LocalMinimun;
00026  u16 LocalMaximun;
00027  u8 ReportCount;
00028  u8 ReportSize;
00029  mode coll_mode; //INPUT/OUTPUT//FEATURE.
00030  u8 mode_value; 
00031 }Report;
00032 
00033 typedef struct
00034 {
00035 u8 numberofreports;
00036 Report* pFirstReport;
00037 //All the reports must be allocated in an array
00038 //so they can be accessed easily.
00039 }Collection;
00040 
00041 ///////////////////////////////////////////////////////////////////////
00042 
00043 
00044 
00045 /* 
00046  * Constants
00047  */
00048  #define PATH_SIZE               10 
00049  #define USAGE_TAB_SIZE          50 
00050  #define MAX_REPORT             300
00051  #define REPORT_DSC_SIZE       6144
00052 
00053  #define SIZE_0                0x00
00054  #define SIZE_1                0x01
00055  #define SIZE_2                0x02
00056  #define SIZE_4                0x03
00057  #define SIZE_MASK             0x03
00058 
00059 
00060  #define TYPE_MAIN             0x00
00061  #define TYPE_GLOBAL           0x04
00062  #define TYPE_LOCAL            0x08
00063  #define TYPE_MASK             0x0C
00064  
00065 /* Main items */
00066  #define ITEM_COLLECTION       0xA0
00067  #define ITEM_END_COLLECTION   0xC0
00068  #define ITEM_FEATURE          0xB0
00069  #define ITEM_INPUT            0x80
00070  #define ITEM_OUTPUT           0x90
00071 
00072 
00073  /* Global items */
00074  #define ITEM_UPAGE            0x04
00075  #define ITEM_LOG_MIN          0x14
00076  #define ITEM_LOG_MAX          0x24
00077  #define ITEM_PHY_MIN          0x34
00078  #define ITEM_PHY_MAX          0x44
00079  #define ITEM_UNIT_EXP         0x54
00080  #define ITEM_UNIT             0x64
00081  #define ITEM_REP_SIZE         0x74
00082  #define ITEM_REP_ID           0x84
00083  #define ITEM_REP_COUNT        0x94
00084  
00085  /* Local items */
00086  #define ITEM_USAGE            0x08
00087  #define ITEM_STRING           0x78
00088  
00089  /* Long item */
00090  #define ITEM_LONG       0xFC
00091  
00092  #define ITEM_MASK             0xFC
00093  
00094  /* Attribute Flags */
00095  #define ATTR_DATA_CST         0x01
00096  #define ATTR_NVOL_VOL         0x80
00097  
00098 
00099 
00100 typedef struct
00101 {
00102 u8 UPage;
00103 u8 Usage;
00104 }HIDNode;
00105 
00106 typedef struct
00107 {
00108  u8 Size;
00109  HIDNode Node[PATH_SIZE];
00110  }HIDPath;
00111  
00112 
00113 typedef struct
00114 {
00115     u32 Value;
00116     HIDPath Path;
00117     u8 ReportID;
00118     u8 Offset;
00119     u8 Size;
00120     u8 Type;
00121     u8 Attribute;
00122     u32 Unit;
00123     u8 UnitExp;
00124     u32 LogMin;
00125     u32 LogMax;
00126     u32 PhyMin;
00127     u32 PhyMax;
00128     } HIDData;
00129 
00130 typedef struct
00131 {
00132  u8 ReportDesc[REPORT_DSC_SIZE];
00133  u8 ReportDescSize;
00134  u8 Pos;
00135  u8 Item;
00136  u32 Value;
00137  HIDData Data;
00138  u8 OffsetTab[MAX_REPORT][3];
00139  u8 ReportCount;
00140  u8 Count;
00141  u8 UPage;
00142  HIDNode UsageTab[USAGE_TAB_SIZE];
00143  u8 UsageSize;
00144  u8 nObject;
00145  u8 nReport;
00146  } HIDParser;
00147  
00148 
00149 
00150 int HIDParse(HIDParser* pParser,HIDData* pData);
00151 void ResetParser(HIDParser* pParser);
00152 int FindObject(HIDParser* pParser, HIDData* pData);
00153 void GetValue(const u8* Buff, HIDData* pData);
00154 void SetValue(const HIDData* pData, u8* Buf);
00155 u8* GetReportOffset(HIDParser* pParser, const u8 ReportID, const u8 ReportType);
00156 
00157 
00158 
00159 
00160 
00161 
00162 
00163 
00164 #endif