diff options
author | Dean Camera <dean@fourwalledcubicle.com> | 2009-11-04 07:14:38 +0000 |
---|---|---|
committer | Dean Camera <dean@fourwalledcubicle.com> | 2009-11-04 07:14:38 +0000 |
commit | 4670b39070afd12483b2dd31e2ec6300ce73eb39 (patch) | |
tree | 9896e7df21e6b676d8e389609603ff954243cc22 /LUFA/Drivers/USB/Class/Host/HIDParser.c | |
parent | ba8ffa4cb70a45f4e487a874276759d81ae8ae2e (diff) | |
download | lufa-4670b39070afd12483b2dd31e2ec6300ce73eb39.tar.gz lufa-4670b39070afd12483b2dd31e2ec6300ce73eb39.tar.bz2 lufa-4670b39070afd12483b2dd31e2ec6300ce73eb39.zip |
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.
Diffstat (limited to 'LUFA/Drivers/USB/Class/Host/HIDParser.c')
-rw-r--r-- | LUFA/Drivers/USB/Class/Host/HIDParser.c | 42 |
1 files changed, 9 insertions, 33 deletions
diff --git a/LUFA/Drivers/USB/Class/Host/HIDParser.c b/LUFA/Drivers/USB/Class/Host/HIDParser.c index f3763081d..3090774ec 100644 --- a/LUFA/Drivers/USB/Class/Host/HIDParser.c +++ b/LUFA/Drivers/USB/Class/Host/HIDParser.c @@ -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];
+
+ CurrReportIDInfo->ReportSizeBits[NewReportItem.ItemType] += CurrStateTable->Attributes.BitSize;
- if (ParserData->LargestReportSizeBits < CurrReportIDInfo->ReportSizeBits[ReportSizeIndex])
- ParserData->LargestReportSizeBits = CurrReportIDInfo->ReportSizeBits[ReportSizeIndex];
+ 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;
}
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