Sergio Collado
this is the Peter Barrett USBHostShell program, a bit modified for being a bit more talkactive, just to let u know how the USB protocol layer is going on, and all the data trasnfers. Also there is a small implementation of HID descriptors, but not functional... yet :S the aim is to at least implement the gamepad HID, and make an array of function pointer to each HID function
Diff: HID.h
- Revision:
- 0:e1e03118b8fe
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/HID.h Mon Sep 13 12:40:05 2010 +0000
@@ -0,0 +1,164 @@
+
+#ifndef HID_H
+#define HID_H
+
+#include "USBHost.h"
+
+#ifndef u8
+typedef unsigned char u8;
+typedef unsigned short u16;
+typedef unsigned long u32;
+
+typedef char s8;
+typedef short s16;
+typedef char s32;
+#endif
+
+
+
+
+enum mode{ INPUT=0x81, OUTPUT=0x91, FEATURE=0xB1};
+
+typedef struct
+{
+ u8 Usage;
+ u8 LocalMinimun;
+ u16 LocalMaximun;
+ u8 ReportCount;
+ u8 ReportSize;
+ mode coll_mode; //INPUT/OUTPUT//FEATURE.
+ u8 mode_value;
+}Report;
+
+typedef struct
+{
+u8 numberofreports;
+Report* pFirstReport;
+//All the reports must be allocated in an array
+//so they can be accessed easily.
+}Collection;
+
+///////////////////////////////////////////////////////////////////////
+
+
+
+/*
+ * Constants
+ */
+ #define PATH_SIZE 10
+ #define USAGE_TAB_SIZE 50
+ #define MAX_REPORT 300
+ #define REPORT_DSC_SIZE 6144
+
+ #define SIZE_0 0x00
+ #define SIZE_1 0x01
+ #define SIZE_2 0x02
+ #define SIZE_4 0x03
+ #define SIZE_MASK 0x03
+
+
+ #define TYPE_MAIN 0x00
+ #define TYPE_GLOBAL 0x04
+ #define TYPE_LOCAL 0x08
+ #define TYPE_MASK 0x0C
+
+/* Main items */
+ #define ITEM_COLLECTION 0xA0
+ #define ITEM_END_COLLECTION 0xC0
+ #define ITEM_FEATURE 0xB0
+ #define ITEM_INPUT 0x80
+ #define ITEM_OUTPUT 0x90
+
+
+ /* Global items */
+ #define ITEM_UPAGE 0x04
+ #define ITEM_LOG_MIN 0x14
+ #define ITEM_LOG_MAX 0x24
+ #define ITEM_PHY_MIN 0x34
+ #define ITEM_PHY_MAX 0x44
+ #define ITEM_UNIT_EXP 0x54
+ #define ITEM_UNIT 0x64
+ #define ITEM_REP_SIZE 0x74
+ #define ITEM_REP_ID 0x84
+ #define ITEM_REP_COUNT 0x94
+
+ /* Local items */
+ #define ITEM_USAGE 0x08
+ #define ITEM_STRING 0x78
+
+ /* Long item */
+ #define ITEM_LONG 0xFC
+
+ #define ITEM_MASK 0xFC
+
+ /* Attribute Flags */
+ #define ATTR_DATA_CST 0x01
+ #define ATTR_NVOL_VOL 0x80
+
+
+
+typedef struct
+{
+u8 UPage;
+u8 Usage;
+}HIDNode;
+
+typedef struct
+{
+ u8 Size;
+ HIDNode Node[PATH_SIZE];
+ }HIDPath;
+
+
+typedef struct
+{
+ u32 Value;
+ HIDPath Path;
+ u8 ReportID;
+ u8 Offset;
+ u8 Size;
+ u8 Type;
+ u8 Attribute;
+ u32 Unit;
+ u8 UnitExp;
+ u32 LogMin;
+ u32 LogMax;
+ u32 PhyMin;
+ u32 PhyMax;
+ } HIDData;
+
+typedef struct
+{
+ u8 ReportDesc[REPORT_DSC_SIZE];
+ u8 ReportDescSize;
+ u8 Pos;
+ u8 Item;
+ u32 Value;
+ HIDData Data;
+ u8 OffsetTab[MAX_REPORT][3];
+ u8 ReportCount;
+ u8 Count;
+ u8 UPage;
+ HIDNode UsageTab[USAGE_TAB_SIZE];
+ u8 UsageSize;
+ u8 nObject;
+ u8 nReport;
+ } HIDParser;
+
+
+
+int HIDParse(HIDParser* pParser,HIDData* pData);
+void ResetParser(HIDParser* pParser);
+int FindObject(HIDParser* pParser, HIDData* pData);
+void GetValue(const u8* Buff, HIDData* pData);
+void SetValue(const HIDData* pData, u8* Buf);
+u8* GetReportOffset(HIDParser* pParser, const u8 ReportID, const u8 ReportType);
+
+
+
+
+
+
+
+
+#endif
\ No newline at end of file