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Added new HID_HOST_BOOT_PROTOCOL_ONLY compile time token to reduce the size of the HID Host Class driver when Report protocol is not needed.

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This commit is contained in:
Dean Camera 2009-09-30 08:16:42 +00:00
parent baa1b22654
commit 2f643f6143
7 changed files with 86 additions and 29 deletions
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63
LUFA/Drivers/USB/Class/Host/HID.c
View file

@ -153,6 +153,7 @@ void HID_Host_USBTask(USB_ClassInfo_HID_Host_t* const HIDInterfaceInfo)
}
#if !defined(HID_HOST_BOOT_PROTOCOL_ONLY)
uint8_t HID_Host_ReceiveReportByID(USB_ClassInfo_HID_Host_t* const HIDInterfaceInfo, const uint8_t ReportID, void* Buffer)
{
USB_ControlRequest = (USB_Request_Header_t)
@ -168,7 +169,8 @@ uint8_t HID_Host_ReceiveReportByID(USB_ClassInfo_HID_Host_t* const HIDInterfaceI
return USB_Host_SendControlRequest(Buffer);
}
#endif
uint8_t HID_Host_ReceiveReport(USB_ClassInfo_HID_Host_t* const HIDInterfaceInfo, void* Buffer)
{
if ((USB_HostState != HOST_STATE_Configured) || !(HIDInterfaceInfo->State.IsActive))
@ -181,11 +183,8 @@ uint8_t HID_Host_ReceiveReport(USB_ClassInfo_HID_Host_t* const HIDInterfaceInfo,
uint16_t ReportSize;
if (HIDInterfaceInfo->State.UsingBootProtocol)
{
ReportSize = Pipe_BytesInPipe();
}
else
#if !defined(HID_HOST_BOOT_PROTOCOL_ONLY)
if (!(HIDInterfaceInfo->State.UsingBootProtocol))
{
uint8_t ReportID = 0;
@ -197,6 +196,11 @@ uint8_t HID_Host_ReceiveReport(USB_ClassInfo_HID_Host_t* const HIDInterfaceInfo,
ReportSize = USB_GetHIDReportSize(HIDInterfaceInfo->Config.HIDParserData, ReportID, REPORT_ITEM_TYPE_In);
}
else
#endif
{
ReportSize = Pipe_BytesInPipe();
}
if ((ErrorCode = Pipe_Read_Stream_LE(Buffer, ReportSize, NO_STREAM_CALLBACK)) != PIPE_RWSTREAM_NoError)
return ErrorCode;
@ -207,28 +211,17 @@ uint8_t HID_Host_ReceiveReport(USB_ClassInfo_HID_Host_t* const HIDInterfaceInfo,
return PIPE_RWSTREAM_NoError;
}
uint8_t HID_Host_SendReportByID(USB_ClassInfo_HID_Host_t* const HIDInterfaceInfo, uint8_t ReportID, void* Buffer,
const uint16_t ReportSize)
uint8_t HID_Host_SendReportByID(USB_ClassInfo_HID_Host_t* const HIDInterfaceInfo,
#if !defined(HID_HOST_BOOT_PROTOCOL_ONLY)
const uint8_t ReportID,
#endif
void* Buffer, const uint16_t ReportSize)
{
if ((USB_HostState != HOST_STATE_Configured) || !(HIDInterfaceInfo->State.IsActive))
return false;
if (!(HIDInterfaceInfo->State.DeviceUsesOUTPipe))
{
USB_ControlRequest = (USB_Request_Header_t)
{
.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE),
.bRequest = REQ_SetReport,
.wValue = ReportID,
.wIndex = HIDInterfaceInfo->State.InterfaceNumber,
.wLength = ReportSize,
};
Pipe_SelectPipe(PIPE_CONTROLPIPE);
return USB_Host_SendControlRequest(Buffer);
}
else
#if !defined(HID_HOST_BOOT_PROTOCOL_ONLY)
if (HIDInterfaceInfo->State.DeviceUsesOUTPipe)
{
uint8_t ErrorCode;
@ -246,6 +239,26 @@ uint8_t HID_Host_SendReportByID(USB_ClassInfo_HID_Host_t* const HIDInterfaceInfo
return PIPE_RWSTREAM_NoError;
}
else
#endif
{
USB_ControlRequest = (USB_Request_Header_t)
{
.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE),
.bRequest = REQ_SetReport,
#if !defined(HID_HOST_BOOT_PROTOCOL_ONLY)
.wValue = ReportID,
#else
.wValue = 0,
#endif
.wIndex = HIDInterfaceInfo->State.InterfaceNumber,
.wLength = ReportSize,
};
Pipe_SelectPipe(PIPE_CONTROLPIPE);
return USB_Host_SendControlRequest(Buffer);
}
}
bool HID_Host_IsReportReceived(USB_ClassInfo_HID_Host_t* const HIDInterfaceInfo)
@ -295,6 +308,7 @@ uint8_t HID_Host_SetBootProtocol(USB_ClassInfo_HID_Host_t* const HIDInterfaceInf
return HOST_SENDCONTROL_Successful;
}
#if !defined(HID_HOST_BOOT_PROTOCOL_ONLY)
uint8_t HID_Host_SetReportProtocol(USB_ClassInfo_HID_Host_t* const HIDInterfaceInfo)
{
uint8_t ErrorCode;
@ -346,5 +360,6 @@ uint8_t HID_Host_SetReportProtocol(USB_ClassInfo_HID_Host_t* const HIDInterfaceI
return 0;
}
#endif
#endif

38
LUFA/Drivers/USB/Class/Host/HID.h
View file

@ -77,8 +77,14 @@
* \ref HID_BOOT_KEYBOARD_PROTOCOL or \ref HID_NON_BOOT_PROTOCOL if any
* HID device should be enumerated by the interface
*/
#if !defined(HID_HOST_BOOT_PROTOCOL_ONLY)
HID_ReportInfo_t* HIDParserData; /**< HID parser data to store the parsed HID report data, when boot protocol
* is not used */
* is not used
*
* \note When the HID_HOST_BOOT_PROTOCOL_ONLY compile time token is defined,
* this method is unavailable.
*/
#endif
} 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.
*/
@ -157,7 +163,10 @@
*/
uint8_t HID_Host_ReceiveReport(USB_ClassInfo_HID_Host_t* const HIDInterfaceInfo, void* Buffer) ATTR_NON_NULL_PTR_ARG(1, 2);
#if !defined(HID_HOST_BOOT_PROTOCOL_ONLY)
/** Received a HID IN report from the attached device, by the report ID.
*
* \note When the HID_HOST_BOOT_PROTOCOL_ONLY compile time token is defined, this method is unavailable.
*
* \param[in,out] HIDInterfaceInfo Pointer to a structure containing a HID Class host configuration and state
* \param[in] ReportID Report ID of the received report if ControlRequest is false, set by the to the Report ID to fetch
@ -167,10 +176,14 @@
*/
uint8_t HID_Host_ReceiveReportByID(USB_ClassInfo_HID_Host_t* const HIDInterfaceInfo, const uint8_t ReportID,
void* Buffer) ATTR_NON_NULL_PTR_ARG(1, 3);
#endif
/** Sends an OUT report to the currently attached HID device, using the device's OUT pipe if available or the device's
* Control pipe if not.
*
* \note When the HID_HOST_BOOT_PROTOCOL_ONLY compile time token is defined, the ReportID parameter is removed
* from the parameter list of this function.
*
* \param[in,out] HIDInterfaceInfo Pointer to a structure containing a HID Class host configuration and state
* \param[in] ReportID Report ID of the report to send to the device, or 0 if the device does not use report IDs
* \param[in] Buffer Buffer containing the report to send to the attached device
@ -179,8 +192,16 @@
* \return An error code from the \ref USB_Host_SendControlErrorCodes_t enum if the DeviceUsesOUTPipe flag is set in
* the interface's state structure, a value from the \ref Pipe_Stream_RW_ErrorCodes_t enum otherwise
*/
uint8_t HID_Host_SendReportByID(USB_ClassInfo_HID_Host_t* const HIDInterfaceInfo, const uint8_t ReportID,
void* Buffer, const uint16_t ReportSize) ATTR_NON_NULL_PTR_ARG(1, 3);
uint8_t HID_Host_SendReportByID(USB_ClassInfo_HID_Host_t* const HIDInterfaceInfo,
#if !defined(HID_HOST_BOOT_PROTOCOL_ONLY)
const uint8_t ReportID,
#endif
void* Buffer, const uint16_t ReportSize)
#if !defined(HID_HOST_BOOT_PROTOCOL_ONLY)
ATTR_NON_NULL_PTR_ARG(1, 3);
#else
ATTR_NON_NULL_PTR_ARG(1, 2);
#endif
/** Determines if a HID IN report has been received from the attached device on the data IN pipe.
*
@ -191,6 +212,9 @@
bool HID_Host_IsReportReceived(USB_ClassInfo_HID_Host_t* const HIDInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);
/** Switches the attached HID device's reporting protocol over to the Boot Report protocol mode, on supported devices.
*
* \note When the HID_HOST_BOOT_PROTOCOL_ONLY compile time token is defined, this method must still be called
* to explicitly place the attached device into boot protocol mode before use.
*
* \param[in,out] HIDInterfaceInfo Pointer to a structure containing a HID Class host configuration and state
*
@ -199,12 +223,15 @@
*/
uint8_t HID_Host_SetBootProtocol(USB_ClassInfo_HID_Host_t* const HIDInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);
#if !defined(HID_HOST_BOOT_PROTOCOL_ONLY)
/** Switches the attached HID device's reporting protocol over to the standard Report protocol mode. This also retrieves
* and parses the device's HID report descriptor, so that the size of each report can be determined in advance.
*
* \note Whether this function is used or not, the \ref CALLBACK_HIDParser_FilterHIDReportItem() callback from the HID
* Report Parser this function references <b>must</b> be implemented in the user code.
*
* \note When the HID_HOST_BOOT_PROTOCOL_ONLY compile time token is defined, this method is unavailable.
*
* \param[in,out] HIDInterfaceInfo Pointer to a structure containing a HID Class host configuration and state
*
* \return A value from the \ref USB_Host_SendControlErrorCodes_t enum if an error occurs while retrieving the HID
@ -213,7 +240,8 @@
* and a value from the \ref HID_Parse_ErrorCodes_t otherwise
*/
uint8_t HID_Host_SetReportProtocol(USB_ClassInfo_HID_Host_t* const HIDInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);
#endif
/* Private Interface - For use in library only: */
#if !defined(__DOXYGEN__)
/* Macros: */