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Diffstat (limited to 'LUFA/Drivers/USB/Class/Host/HIDParser.c')
-rw-r--r--LUFA/Drivers/USB/Class/Host/HIDParser.c109
1 files changed, 55 insertions, 54 deletions
diff --git a/LUFA/Drivers/USB/Class/Host/HIDParser.c b/LUFA/Drivers/USB/Class/Host/HIDParser.c
index c5d5f948a..43f703a93 100644
--- a/LUFA/Drivers/USB/Class/Host/HIDParser.c
+++ b/LUFA/Drivers/USB/Class/Host/HIDParser.c
@@ -1,7 +1,7 @@
/*
LUFA Library
Copyright (C) Dean Camera, 2010.
-
+
dean [at] fourwalledcubicle [dot] com
www.fourwalledcubicle.com
*/
@@ -9,13 +9,13 @@
/*
Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com)
- Permission to use, copy, modify, distribute, and sell this
+ Permission to use, copy, modify, distribute, and sell this
software and its documentation for any purpose is hereby granted
- without fee, provided that the above copyright notice appear in
+ without fee, provided that the above copyright notice appear in
all copies and that both that the copyright notice and this
- permission notice and warranty disclaimer appear in supporting
- documentation, and that the name of the author not be used in
- advertising or publicity pertaining to distribution of the
+ permission notice and warranty disclaimer appear in supporting
+ documentation, and that the name of the author not be used in
+ advertising or publicity pertaining to distribution of the
software without specific, written prior permission.
The author disclaim all warranties with regard to this
@@ -41,7 +41,7 @@ uint8_t USB_ProcessHIDReport(const uint8_t* ReportData,
HID_StateTable_t StateTable[HID_STATETABLE_STACK_DEPTH];
HID_StateTable_t* CurrStateTable = &StateTable[0];
HID_CollectionPath_t* CurrCollectionPath = NULL;
- HID_ReportSizeInfo_t* CurrReportIDInfo = &ParserData->ReportIDSizes[0];
+ HID_ReportSizeInfo_t* CurrReportIDInfo = &ParserData->ReportIDSizes[0];
uint16_t UsageList[HID_USAGE_STACK_DEPTH];
uint8_t UsageListSize = 0;
HID_MinMax_t UsageMinMax = {0, 0};
@@ -50,16 +50,16 @@ uint8_t USB_ProcessHIDReport(const uint8_t* ReportData,
memset(CurrStateTable, 0x00, sizeof(HID_StateTable_t));
memset(CurrReportIDInfo, 0x00, sizeof(HID_ReportSizeInfo_t));
- ParserData->TotalDeviceReports = 1;
+ ParserData->TotalDeviceReports = 1;
while (ReportSize)
{
uint8_t HIDReportItem = *ReportData;
uint32_t ReportItemData = 0;
-
+
ReportData++;
ReportSize--;
-
+
switch (HIDReportItem & DATA_SIZE_MASK)
{
case DATA_SIZE_4:
@@ -84,7 +84,7 @@ uint8_t USB_ProcessHIDReport(const uint8_t* ReportData,
case (TYPE_GLOBAL | TAG_GLOBAL_PUSH):
if (CurrStateTable == &StateTable[HID_STATETABLE_STACK_DEPTH - 1])
return HID_PARSE_HIDStackOverflow;
-
+
memcpy((CurrStateTable + 1),
CurrStateTable,
sizeof(HID_ReportItem_t));
@@ -94,7 +94,7 @@ uint8_t USB_ProcessHIDReport(const uint8_t* ReportData,
case (TYPE_GLOBAL | TAG_GLOBAL_POP):
if (CurrStateTable == &StateTable[0])
return HID_PARSE_HIDStackUnderflow;
-
+
CurrStateTable--;
break;
case (TYPE_GLOBAL | TAG_GLOBAL_USAGEPAGE):
@@ -139,25 +139,25 @@ uint8_t USB_ProcessHIDReport(const uint8_t* ReportData,
break;
}
}
-
+
if (CurrReportIDInfo == NULL)
{
if (ParserData->TotalDeviceReports == HID_MAX_REPORT_IDS)
return HID_PARSE_InsufficientReportIDItems;
-
+
CurrReportIDInfo = &ParserData->ReportIDSizes[ParserData->TotalDeviceReports++];
memset(CurrReportIDInfo, 0x00, sizeof(HID_ReportSizeInfo_t));
}
}
-
+
ParserData->UsingReportIDs = true;
-
+
CurrReportIDInfo->ReportID = CurrStateTable->ReportID;
break;
case (TYPE_LOCAL | TAG_LOCAL_USAGE):
if (UsageListSize == HID_USAGE_STACK_DEPTH)
return HID_PARSE_UsageListOverflow;
-
+
UsageList[UsageListSize++] = ReportItemData;
break;
case (TYPE_LOCAL | TAG_LOCAL_USAGEMIN):
@@ -174,42 +174,42 @@ uint8_t USB_ProcessHIDReport(const uint8_t* ReportData,
else
{
HID_CollectionPath_t* ParentCollectionPath = CurrCollectionPath;
-
+
CurrCollectionPath = &ParserData->CollectionPaths[1];
-
+
while (CurrCollectionPath->Parent != NULL)
{
if (CurrCollectionPath == &ParserData->CollectionPaths[HID_MAX_COLLECTIONS - 1])
return HID_PARSE_InsufficientCollectionPaths;
-
+
CurrCollectionPath++;
}
-
+
CurrCollectionPath->Parent = ParentCollectionPath;
}
-
+
CurrCollectionPath->Type = ReportItemData;
CurrCollectionPath->Usage.Page = CurrStateTable->Attributes.Usage.Page;
-
+
if (UsageListSize)
{
CurrCollectionPath->Usage.Usage = UsageList[0];
for (uint8_t i = 0; i < UsageListSize; i++)
UsageList[i] = UsageList[i + 1];
-
+
UsageListSize--;
}
else if (UsageMinMax.Minimum <= UsageMinMax.Maximum)
{
CurrCollectionPath->Usage.Usage = UsageMinMax.Minimum++;
}
-
+
break;
case (TYPE_MAIN | TAG_MAIN_ENDCOLLECTION):
if (CurrCollectionPath == NULL)
return HID_PARSE_UnexpectedEndCollection;
-
+
CurrCollectionPath = CurrCollectionPath->Parent;
break;
case (TYPE_MAIN | TAG_MAIN_INPUT):
@@ -218,60 +218,60 @@ uint8_t USB_ProcessHIDReport(const uint8_t* ReportData,
for (uint8_t ReportItemNum = 0; ReportItemNum < CurrStateTable->ReportCount; ReportItemNum++)
{
HID_ReportItem_t NewReportItem;
-
+
memcpy(&NewReportItem.Attributes,
&CurrStateTable->Attributes,
sizeof(HID_ReportItem_Attributes_t));
-
+
NewReportItem.ItemFlags = ReportItemData;
NewReportItem.CollectionPath = CurrCollectionPath;
NewReportItem.ReportID = CurrStateTable->ReportID;
-
+
if (UsageListSize)
{
NewReportItem.Attributes.Usage.Usage = UsageList[0];
-
+
for (uint8_t i = 0; i < UsageListSize; i++)
UsageList[i] = UsageList[i + 1];
-
+
UsageListSize--;
}
else if (UsageMinMax.Minimum <= UsageMinMax.Maximum)
{
NewReportItem.Attributes.Usage.Usage = UsageMinMax.Minimum++;
}
-
+
uint8_t ItemTag = (HIDReportItem & TAG_MASK);
-
+
if (ItemTag == TAG_MAIN_INPUT)
NewReportItem.ItemType = HID_REPORT_ITEM_In;
else if (ItemTag == TAG_MAIN_OUTPUT)
NewReportItem.ItemType = HID_REPORT_ITEM_Out;
else
NewReportItem.ItemType = HID_REPORT_ITEM_Feature;
-
+
NewReportItem.BitOffset = CurrReportIDInfo->ReportSizeBits[NewReportItem.ItemType];
-
+
CurrReportIDInfo->ReportSizeBits[NewReportItem.ItemType] += CurrStateTable->Attributes.BitSize;
-
+
if (ParserData->LargestReportSizeBits < NewReportItem.BitOffset)
ParserData->LargestReportSizeBits = NewReportItem.BitOffset;
-
+
if (!(ReportItemData & IOF_CONSTANT) && CALLBACK_HIDParser_FilterHIDReportItem(&NewReportItem))
{
if (ParserData->TotalReportItems == HID_MAX_REPORTITEMS)
return HID_PARSE_InsufficientReportItems;
-
+
memcpy(&ParserData->ReportItems[ParserData->TotalReportItems],
&NewReportItem, sizeof(HID_ReportItem_t));
-
+
ParserData->TotalReportItems++;
}
}
-
+
break;
}
-
+
if ((HIDReportItem & TYPE_MASK) == TYPE_MAIN)
{
UsageMinMax.Minimum = 0;
@@ -279,10 +279,10 @@ uint8_t USB_ProcessHIDReport(const uint8_t* ReportData,
UsageListSize = 0;
}
}
-
+
if (!(ParserData->TotalReportItems))
return HID_PARSE_NoUnfilteredReportItems;
-
+
return HID_PARSE_Successful;
}
@@ -292,27 +292,27 @@ bool USB_GetHIDReportItemInfo(const uint8_t* ReportData,
uint16_t DataBitsRem = ReportItem->Attributes.BitSize;
uint16_t CurrentBit = ReportItem->BitOffset;
uint32_t BitMask = (1 << 0);
-
+
if (ReportItem->ReportID)
{
if (ReportItem->ReportID != ReportData[0])
return false;
-
+
ReportData++;
}
-
+
ReportItem->PreviousValue = ReportItem->Value;
ReportItem->Value = 0;
-
+
while (DataBitsRem--)
{
if (ReportData[CurrentBit / 8] & (1 << (CurrentBit % 8)))
ReportItem->Value |= BitMask;
-
+
CurrentBit++;
BitMask <<= 1;
}
-
+
return true;
}
@@ -322,20 +322,20 @@ void USB_SetHIDReportItemInfo(uint8_t* ReportData,
uint16_t DataBitsRem = ReportItem->Attributes.BitSize;
uint16_t CurrentBit = ReportItem->BitOffset;
uint32_t BitMask = (1 << 0);
-
+
if (ReportItem->ReportID)
{
ReportData[0] = ReportItem->ReportID;
ReportData++;
}
-
+
ReportItem->PreviousValue = ReportItem->Value;
-
+
while (DataBitsRem--)
{
if (ReportItem->Value & (1 << (CurrentBit % 8)))
ReportData[CurrentBit / 8] |= BitMask;
-
+
CurrentBit++;
BitMask <<= 1;
}
@@ -348,7 +348,7 @@ uint16_t USB_GetHIDReportSize(HID_ReportInfo_t* const ParserData,
for (uint8_t i = 0; i < HID_MAX_REPORT_IDS; i++)
{
uint16_t ReportSizeBits = ParserData->ReportIDSizes[i].ReportSizeBits[ReportType];
-
+
if (ParserData->ReportIDSizes[i].ReportID == ReportID)
return ((ReportSizeBits >> 3) + ((ReportSizeBits & 0x07) ? 1 : 0));
}
@@ -357,3 +357,4 @@ uint16_t USB_GetHIDReportSize(HID_ReportInfo_t* const ParserData,
}
#endif
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-17 16:17:51 +0000