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Fixed HID report parser collection paths invalid due to misplaced semicolon in the free path item search loop. Increased the default number of collection paths allowable by the parser.

This commit is contained in:
Dean Camera 2009-11-04 07:14:38 +00:00
parent ba8ffa4cb7
commit 4670b39070
4 changed files with 11 additions and 35 deletions
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42
LUFA/Drivers/USB/Class/Host/HIDParser.c
View File

@ -42,16 +42,12 @@ uint8_t USB_ProcessHIDReport(const uint8_t* ReportData, uint16_t ReportSize, HID
uint16_t UsageStack[HID_USAGE_STACK_DEPTH];
uint8_t UsageStackSize = 0;
ParserData->TotalReportItems = 0;
ParserData->TotalDeviceReports = 1;
ParserData->UsingReportIDs = false;
for (uint8_t CurrCollection = 0; CurrCollection < HID_MAX_COLLECTIONS; CurrCollection++)
ParserData->CollectionPaths[CurrCollection].Parent = NULL;
memset(ParserData, 0x00, sizeof(HID_ReportInfo_t));
memset(CurrStateTable, 0x00, sizeof(HID_StateTable_t));
memset(CurrReportIDInfo, 0x00, sizeof(HID_ReportSizeInfo_t));
ParserData->TotalDeviceReports = 1;
while (ReportSize)
{
uint8_t HIDReportItem = *ReportData;
@ -177,7 +173,7 @@ uint8_t USB_ProcessHIDReport(const uint8_t* ReportData, uint16_t ReportSize, HID
CurrCollectionPath = &ParserData->CollectionPaths[1];
while (CurrCollectionPath->Parent != NULL);
while (CurrCollectionPath->Parent != NULL)
{
if (CurrCollectionPath == &ParserData->CollectionPaths[HID_MAX_COLLECTIONS - 1])
return HID_PARSE_InsufficientCollectionPaths;
@ -200,10 +196,6 @@ uint8_t USB_ProcessHIDReport(const uint8_t* ReportData, uint16_t ReportSize, HID
UsageStackSize--;
}
else
{
CurrCollectionPath->Usage.Usage = 0;
}
break;
case (TYPE_MAIN | TAG_MAIN_ENDCOLLECTION):
@ -211,7 +203,6 @@ uint8_t USB_ProcessHIDReport(const uint8_t* ReportData, uint16_t ReportSize, HID
return HID_PARSE_UnexpectedEndCollection;
CurrCollectionPath = CurrCollectionPath->Parent;
break;
case (TYPE_MAIN | TAG_MAIN_INPUT):
case (TYPE_MAIN | TAG_MAIN_OUTPUT):
@ -237,39 +228,26 @@ uint8_t USB_ProcessHIDReport(const uint8_t* ReportData, uint16_t ReportSize, HID
UsageStackSize--;
}
else
{
NewReportItem.Attributes.Usage.Usage = 0;
}
uint8_t ReportSizeIndex = 0;
switch (HIDReportItem & TAG_MASK)
{
case TAG_MAIN_INPUT:
NewReportItem.ItemType = REPORT_ITEM_TYPE_In;
NewReportItem.BitOffset = CurrReportIDInfo->ReportSizeBits[REPORT_ITEM_TYPE_In];
ReportSizeIndex = REPORT_ITEM_TYPE_In;
break;
case TAG_MAIN_OUTPUT:
NewReportItem.ItemType = REPORT_ITEM_TYPE_Out;
NewReportItem.BitOffset = CurrReportIDInfo->ReportSizeBits[REPORT_ITEM_TYPE_Out];
ReportSizeIndex = REPORT_ITEM_TYPE_Out;
break;
case TAG_MAIN_FEATURE:
NewReportItem.ItemType = REPORT_ITEM_TYPE_Feature;
NewReportItem.BitOffset = CurrReportIDInfo->ReportSizeBits[REPORT_ITEM_TYPE_Feature];
ReportSizeIndex = REPORT_ITEM_TYPE_Feature;
break;
}
CurrReportIDInfo->ReportSizeBits[ReportSizeIndex] += CurrStateTable->Attributes.BitSize;
NewReportItem.BitOffset = CurrReportIDInfo->ReportSizeBits[NewReportItem.ItemType];
if (ParserData->LargestReportSizeBits < CurrReportIDInfo->ReportSizeBits[ReportSizeIndex])
ParserData->LargestReportSizeBits = CurrReportIDInfo->ReportSizeBits[ReportSizeIndex];
CurrReportIDInfo->ReportSizeBits[NewReportItem.ItemType] += CurrStateTable->Attributes.BitSize;
if (ParserData->LargestReportSizeBits < NewReportItem.BitOffset)
ParserData->LargestReportSizeBits = NewReportItem.BitOffset;
if (!(ReportItemData & IOF_CONSTANT) && CALLBACK_HIDParser_FilterHIDReportItem(&NewReportItem))
{
@ -283,8 +261,6 @@ uint8_t USB_ProcessHIDReport(const uint8_t* ReportData, uint16_t ReportSize, HID
}
}
UsageStackSize = 0;
break;
}

2
LUFA/Drivers/USB/Class/Host/HIDParser.h
View File

@ -99,7 +99,7 @@
* overridden by defining HID_MAX_COLLECTIONS to another value in the user project makefile, passing
* the define to the compiler using the -D compiler switch.
*/
#define HID_MAX_COLLECTIONS 5
#define HID_MAX_COLLECTIONS 10
#endif
#if !defined(HID_MAX_REPORTITEMS) || defined(__DOXYGEN__)

1
LUFA/ManPages/ChangeLog.txt
View File

@ -42,6 +42,7 @@
* - Fixed incorrect event name rule in demo/project/bootloader makefiles
* - Fixed HID device class driver not reselecting the correct endpoint once the user callback routines have been called
* - Corrected HID descriptor in the Joystick Device demos - buttons should be placed outside the pointer collection
* - Fixed HID report parser collection paths invalid due to misplaced semicolon in the free path item search loop
*
* \section Sec_ChangeLog090924 Version 090924
*

1
LUFA/ManPages/FutureChanges.txt
View File

@ -27,7 +27,6 @@
* - Make new demos
* -# Keyboard/Mouse Dual Class Host
* -# Multiple-Report HID device
* -# Joystick Host
* - Port LUFA to other architectures
* -# AVR32 UC3B series microcontrollers
* -# Atmel ARM7 series microcontrollers