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Remove potentially unaligned uint32_t access in HIDParser.c, replace with standard C bit shifts.

Browse Source
pull/1469/head
Dean Camera 13 years ago
parent 6c738343ae
commit 4068efbd18
9 changed files with 56 additions and 38 deletions
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18
LUFA/DoxygenPages/ChangeLog.txt
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@ -7,7 +7,23 @@
/** \page Page_ChangeLog Project Changelog
*
* \section Sec_ChangeLogXXXXXX Version XXXXXX
* None.
* <b>New:</b>
* - Core:
* - None
* - Library Applications:
* - None
*
* <b>Changed:</b>
* - Core:
* - Android Accessory Host property strings changed from a struct of pointer to an array to prevent unaligned access on greater than 8-bit architectures
* - Library Applications:
* - None
*
* <b>Fixed:</b>
* - Core:
* - None
* - Library Applications:
* - None
*
* \section Sec_ChangeLog120219 Version 120219
* <b>New:</b>

4
LUFA/DoxygenPages/MigrationInformation.txt
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@ -11,7 +11,9 @@
* areas relevant to making older projects compatible with the API changes of each new release.
*
* \section Sec_MigrationXXXXXX Migrating from 120219 to XXXXXX
* None.
* <b>Host Mode</b>
* - The Android Accessory Host class driver property strings are now a array of \c char* rather than a struct of named pointers. Existing applications
* should use C99 Designated Initializers with the property string indexes located in \ref AOA_Strings_t instead.
*
* \section Sec_Migration120219 Migrating from 111009 to 120219
* <b>USB Core</b>

7
LUFA/Drivers/USB/Class/Common/HIDParser.c
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@ -61,17 +61,18 @@ uint8_t USB_ProcessHIDReport(const uint8_t* ReportData,
switch (HIDReportItem & HID_RI_DATA_SIZE_MASK)
{
case HID_RI_DATA_BITS_32:
ReportItemData = le32_to_cpu(*((uint32_t*)ReportData));
ReportItemData = (((uint32_t)ReportData[3] << 24) | ((uint32_t)ReportData[2] << 16) |
((uint16_t)ReportData[1] << 8) | ReportData[0]);
ReportSize -= 4;
ReportData += 4;
break;
case HID_RI_DATA_BITS_16:
ReportItemData = le16_to_cpu(*((uint16_t*)ReportData));
ReportItemData = (((uint16_t)ReportData[1] << 8) | (ReportData[0]));
ReportSize -= 2;
ReportData += 2;
break;
case HID_RI_DATA_BITS_8:
ReportItemData = *((uint8_t*)ReportData);
ReportItemData = ReportData[0];
ReportSize -= 1;
ReportData += 1;
break;

2
LUFA/Drivers/USB/Class/Host/AndroidAccessoryClassHost.c
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@ -233,7 +233,7 @@ static uint8_t AOA_Host_GetAccessoryProtocol(uint16_t* const Protocol)
static uint8_t AOA_Host_SendPropertyString(USB_ClassInfo_AOA_Host_t* const AOAInterfaceInfo,
const uint8_t StringIndex)
{
const char* String = ((char**)&AOAInterfaceInfo->Config.PropertyStrings)[StringIndex];
const char* String = AOAInterfaceInfo->Config.PropertyStrings[StringIndex];
if (String == NULL)
String = "";

10
LUFA/Drivers/USB/Class/Host/AndroidAccessoryClassHost.h
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@ -91,15 +91,7 @@
uint8_t DataOUTPipeNumber; /**< Pipe number of the AOA interface's OUT data pipe. */
bool DataOUTPipeDoubleBank; /**< Indicates if the AOA interface's OUT data pipe should use double banking. */
struct
{
char* Manufacturer; /**< Device manufacturer string. */
char* Model; /**< Device model name string. */
char* Description; /**< Device description string. */
char* Version; /**< Device version string. */
char* URI; /**< Device URI information string. */
char* Serial; /**< Device serial number string. */
} ATTR_PACKED PropertyStrings; /**< Android Accessory property strings, sent to identify the accessory when the
char* PropertyStrings[AOA_STRING_TOTAL_STRINGS]; /**< Android Accessory property strings, sent to identify the accessory when the
* Android device is switched into Open Accessory mode. */
} Config; /**< Config data for the USB class interface within the device. All elements in this section
* <b>must</b> be set or the interface will fail to enumerate and operate correctly.

2
LUFA/Drivers/USB/Class/Host/PrinterClassHost.c
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@ -278,7 +278,7 @@ uint8_t PRNT_Host_SendByte(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo,
}
uint8_t PRNT_Host_SendString(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo,
void* String)
const char* const String)
{
uint8_t ErrorCode;

2
LUFA/Drivers/USB/Class/Host/PrinterClassHost.h
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@ -190,7 +190,7 @@
* \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum.
*/
uint8_t PRNT_Host_SendString(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo,
void* String) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2);
const char* const String) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2);
/** Sends the given raw data stream to the attached printer's input endpoint. This should contain commands that the
* printer is able to understand - for example, PCL data. Not all printers accept all printer languages; see

44
LUFA/Drivers/USB/Core/HostStandardReq.c
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@ -38,17 +38,16 @@
uint8_t USB_Host_ConfigurationNumber;
uint8_t USB_Host_SendControlRequest(void* const BufferPtr)
static uint8_t USB_Host_SendControlRequest_PRV(void* const BufferPtr)
{
uint8_t* DataStream = (uint8_t*)BufferPtr;
bool BusSuspended = USB_Host_IsBusSuspended();
uint8_t ReturnStatus = HOST_SENDCONTROL_Successful;
uint16_t DataLen = USB_ControlRequest.wLength;
USB_Host_ResumeBus();
if ((ReturnStatus = USB_Host_WaitMS(1)) != HOST_WAITERROR_Successful)
goto End_Of_Control_Send;
return ReturnStatus;
Pipe_SetPipeToken(PIPE_TOKEN_SETUP);
Pipe_ClearError();
@ -71,12 +70,12 @@ uint8_t USB_Host_SendControlRequest(void* const BufferPtr)
Pipe_ClearSETUP();
if ((ReturnStatus = USB_Host_WaitForIOS(USB_HOST_WAITFOR_SetupSent)) != HOST_SENDCONTROL_Successful)
goto End_Of_Control_Send;
return ReturnStatus;
Pipe_Freeze();
if ((ReturnStatus = USB_Host_WaitMS(1)) != HOST_WAITERROR_Successful)
goto End_Of_Control_Send;
return ReturnStatus;
if ((USB_ControlRequest.bmRequestType & CONTROL_REQTYPE_DIRECTION) == REQDIR_DEVICETOHOST)
{
@ -89,7 +88,7 @@ uint8_t USB_Host_SendControlRequest(void* const BufferPtr)
Pipe_Unfreeze();
if ((ReturnStatus = USB_Host_WaitForIOS(USB_HOST_WAITFOR_InReceived)) != HOST_SENDCONTROL_Successful)
goto End_Of_Control_Send;
return ReturnStatus;
if (!(Pipe_BytesInPipe()))
DataLen = 0;
@ -109,12 +108,12 @@ uint8_t USB_Host_SendControlRequest(void* const BufferPtr)
Pipe_Unfreeze();
if ((ReturnStatus = USB_Host_WaitForIOS(USB_HOST_WAITFOR_OutReady)) != HOST_SENDCONTROL_Successful)
goto End_Of_Control_Send;
return ReturnStatus;
Pipe_ClearOUT();
if ((ReturnStatus = USB_Host_WaitForIOS(USB_HOST_WAITFOR_OutReady)) != HOST_SENDCONTROL_Successful)
goto End_Of_Control_Send;
return ReturnStatus;
}
else
{
@ -126,7 +125,7 @@ uint8_t USB_Host_SendControlRequest(void* const BufferPtr)
while (DataLen)
{
if ((ReturnStatus = USB_Host_WaitForIOS(USB_HOST_WAITFOR_OutReady)) != HOST_SENDCONTROL_Successful)
goto End_Of_Control_Send;
return ReturnStatus;
while (DataLen && (Pipe_BytesInPipe() < USB_Host_ControlPipeSize))
{
@ -138,7 +137,7 @@ uint8_t USB_Host_SendControlRequest(void* const BufferPtr)
}
if ((ReturnStatus = USB_Host_WaitForIOS(USB_HOST_WAITFOR_OutReady)) != HOST_SENDCONTROL_Successful)
goto End_Of_Control_Send;
return ReturnStatus;
Pipe_Freeze();
}
@ -147,19 +146,11 @@ uint8_t USB_Host_SendControlRequest(void* const BufferPtr)
Pipe_Unfreeze();
if ((ReturnStatus = USB_Host_WaitForIOS(USB_HOST_WAITFOR_InReceived)) != HOST_SENDCONTROL_Successful)
goto End_Of_Control_Send;
return ReturnStatus;
Pipe_ClearIN();
}
End_Of_Control_Send:
Pipe_Freeze();
if (BusSuspended)
USB_Host_SuspendBus();
Pipe_ResetPipe(PIPE_CONTROLPIPE);
return ReturnStatus;
}
@ -187,6 +178,21 @@ static uint8_t USB_Host_WaitForIOS(const uint8_t WaitType)
return HOST_SENDCONTROL_Successful;
}
uint8_t USB_Host_SendControlRequest(void* const BufferPtr)
{
bool BusSuspended = USB_Host_IsBusSuspended();
uint8_t ReturnStatus = USB_Host_SendControlRequest_PRV(BufferPtr);
Pipe_Freeze();
if (BusSuspended)
USB_Host_SuspendBus();
Pipe_ResetPipe(PIPE_CONTROLPIPE);
return ReturnStatus;
}
uint8_t USB_Host_SetDeviceConfiguration(const uint8_t ConfigNumber)
{
uint8_t ErrorCode;

1
LUFA/Drivers/USB/Core/HostStandardReq.h
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@ -278,6 +278,7 @@
/* Function Prototypes: */
#if defined(__INCLUDE_FROM_HOSTSTDREQ_C)
static uint8_t USB_Host_SendControlRequest_PRV(void* const BufferPtr);
static uint8_t USB_Host_WaitForIOS(const uint8_t WaitType);
#endif
#endif

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