-/*\r
- LUFA Library\r
- Copyright (C) Dean Camera, 2010.\r
- \r
- dean [at] fourwalledcubicle [dot] com\r
- www.fourwalledcubicle.com\r
-*/\r
-\r
-/*\r
- Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com)\r
-\r
- Permission to use, copy, modify, distribute, and sell this \r
- software and its documentation for any purpose is hereby granted\r
- without fee, provided that the above copyright notice appear in \r
- all copies and that both that the copyright notice and this\r
- permission notice and warranty disclaimer appear in supporting \r
- documentation, and that the name of the author not be used in \r
- advertising or publicity pertaining to distribution of the \r
- software without specific, written prior permission.\r
-\r
- The author disclaim all warranties with regard to this\r
- software, including all implied warranties of merchantability\r
- and fitness. In no event shall the author be liable for any\r
- special, indirect or consequential damages or any damages\r
- whatsoever resulting from loss of use, data or profits, whether\r
- in an action of contract, negligence or other tortious action,\r
- arising out of or in connection with the use or performance of\r
- this software.\r
-*/\r
-\r
-#include "HIDReport.h"\r
-\r
-/** Size in bytes of the attached device's HID report descriptor */\r
-uint16_t HIDReportSize;\r
-\r
-/** Processed HID report descriptor items structure, containing information on each HID report element */\r
-HID_ReportInfo_t HIDReportInfo;\r
-\r
-\r
-/** Function to read in the HID report descriptor from the attached device, and process it into easy-to-read\r
- * structures via the HID parser routines in the LUFA library.\r
- *\r
- * \return A value from the MouseHostWithParser_GetHIDReportDataCodes_t enum\r
- */\r
-uint8_t GetHIDReportData(void)\r
-{\r
- /* Create a buffer big enough to hold the entire returned HID report */\r
- uint8_t HIDReportData[HIDReportSize];\r
- \r
- USB_ControlRequest = (USB_Request_Header_t)\r
- {\r
- .bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_INTERFACE),\r
- .bRequest = REQ_GetDescriptor,\r
- .wValue = (DTYPE_Report << 8),\r
- .wIndex = 0,\r
- .wLength = HIDReportSize,\r
- };\r
-\r
- /* Select the control pipe for the request transfer */\r
- Pipe_SelectPipe(PIPE_CONTROLPIPE);\r
-\r
- /* Send control request to retrieve the HID report from the attached device */\r
- if (USB_Host_SendControlRequest(HIDReportData) != HOST_SENDCONTROL_Successful)\r
- return ParseControlError;\r
-\r
- /* Send the HID report to the parser for processing */\r
- if (USB_ProcessHIDReport(HIDReportData, HIDReportSize, &HIDReportInfo) != HID_PARSE_Successful)\r
- return ParseError;\r
- \r
- return ParseSuccessful;\r
-}\r
-\r
-/** Callback for the HID Report Parser. This function is called each time the HID report parser is about to store\r
- * an IN, OUT or FEATURE item into the HIDReportInfo structure. To save on RAM, we are able to filter out items\r
- * we aren't interested in (preventing us from being able to extract them later on, but saving on the RAM they would\r
- * have occupied).\r
- *\r
- * \param[in] CurrentItem Pointer to the item the HID report parser is currently working with\r
- *\r
- * \return Boolean true if the item should be stored into the HID report structure, false if it should be discarded\r
- */\r
-bool CALLBACK_HIDParser_FilterHIDReportItem(HID_ReportItem_t* CurrentItem)\r
-{\r
- bool IsJoystick = false;\r
-\r
- /* Iterate through the item's collection path, until either the root collection node or a collection with the\r
- * Joystick Usage is found - this prevents Mice, which use identical descriptors except for the Mouse usage\r
- * parent node, from being erroneously treated as a joystick\r
- */\r
- for (HID_CollectionPath_t* CurrPath = CurrentItem->CollectionPath; CurrPath != NULL; CurrPath = CurrPath->Parent)\r
- {\r
- if ((CurrPath->Usage.Page == USAGE_PAGE_GENERIC_DCTRL) &&\r
- (CurrPath->Usage.Usage == USAGE_JOYSTICK))\r
- {\r
- IsJoystick = true;\r
- break;\r
- }\r
- }\r
-\r
- /* If a collection with the joystick usage was not found, indicate that we are not interested in this item */\r
- if (!IsJoystick)\r
- return false;\r
- \r
- /* Check the attributes of the current joystick item - see if we are interested in it or not;\r
- * only store BUTTON and GENERIC_DESKTOP_CONTROL items into the Processed HID Report\r
- * structure to save RAM and ignore the rest\r
- */\r
- return ((CurrentItem->Attributes.Usage.Page == USAGE_PAGE_BUTTON) ||\r
- (CurrentItem->Attributes.Usage.Page == USAGE_PAGE_GENERIC_DCTRL));\r
-}\r
+/*
+ LUFA Library
+ Copyright (C) Dean Camera, 2012.
+
+ dean [at] fourwalledcubicle [dot] com
+ www.lufa-lib.org
+*/
+
+/*
+ Copyright 2012 Dean Camera (dean [at] fourwalledcubicle [dot] com)
+
+ 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
+ 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
+ software without specific, written prior permission.
+
+ The author disclaim all warranties with regard to this
+ software, including all implied warranties of merchantability
+ and fitness. In no event shall the author be liable for any
+ special, indirect or consequential damages or any damages
+ whatsoever resulting from loss of use, data or profits, whether
+ in an action of contract, negligence or other tortious action,
+ arising out of or in connection with the use or performance of
+ this software.
+*/
+
+#include "HIDReport.h"
+
+/** Size in bytes of the attached device's HID report descriptor */
+uint16_t HIDReportSize;
+
+/** Processed HID report descriptor items structure, containing information on each HID report element */
+HID_ReportInfo_t HIDReportInfo;
+
+
+/** Function to read in the HID report descriptor from the attached device, and process it into easy-to-read
+ * structures via the HID parser routines in the LUFA library.
+ *
+ * \return A value from the \ref JoystickHostWithParser_GetHIDReportDataCodes_t enum
+ */
+uint8_t GetHIDReportData(void)
+{
+ /* Create a buffer big enough to hold the entire returned HID report */
+ uint8_t HIDReportData[HIDReportSize];
+
+ USB_ControlRequest = (USB_Request_Header_t)
+ {
+ .bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_INTERFACE),
+ .bRequest = REQ_GetDescriptor,
+ .wValue = (HID_DTYPE_Report << 8),
+ .wIndex = 0,
+ .wLength = HIDReportSize,
+ };
+
+ /* Select the control pipe for the request transfer */
+ Pipe_SelectPipe(PIPE_CONTROLPIPE);
+
+ /* Send control request to retrieve the HID report from the attached device */
+ if (USB_Host_SendControlRequest(HIDReportData) != HOST_SENDCONTROL_Successful)
+ return ParseControlError;
+
+ /* Send the HID report to the parser for processing */
+ if (USB_ProcessHIDReport(HIDReportData, HIDReportSize, &HIDReportInfo) != HID_PARSE_Successful)
+ return ParseError;
+
+ return ParseSuccessful;
+}
+
+/** Callback for the HID Report Parser. This function is called each time the HID report parser is about to store
+ * an IN, OUT or FEATURE item into the HIDReportInfo structure. To save on RAM, we are able to filter out items
+ * we aren't interested in (preventing us from being able to extract them later on, but saving on the RAM they would
+ * have occupied).
+ *
+ * \param[in] CurrentItem Pointer to the item the HID report parser is currently working with
+ *
+ * \return Boolean true if the item should be stored into the HID report structure, false if it should be discarded
+ */
+bool CALLBACK_HIDParser_FilterHIDReportItem(HID_ReportItem_t* const CurrentItem)
+{
+ bool IsJoystick = false;
+
+ /* Iterate through the item's collection path, until either the root collection node or a collection with the
+ * Joystick Usage is found - this prevents Mice, which use identical descriptors except for the Mouse usage
+ * parent node, from being erroneously treated as a joystick
+ */
+ for (HID_CollectionPath_t* CurrPath = CurrentItem->CollectionPath; CurrPath != NULL; CurrPath = CurrPath->Parent)
+ {
+ if ((CurrPath->Usage.Page == USAGE_PAGE_GENERIC_DCTRL) &&
+ (CurrPath->Usage.Usage == USAGE_JOYSTICK))
+ {
+ IsJoystick = true;
+ break;
+ }
+ }
+
+ /* If a collection with the joystick usage was not found, indicate that we are not interested in this item */
+ if (!IsJoystick)
+ return false;
+
+ /* Check the attributes of the current joystick item - see if we are interested in it or not;
+ * only store BUTTON and GENERIC_DESKTOP_CONTROL items into the Processed HID Report
+ * structure to save RAM and ignore the rest
+ */
+ return ((CurrentItem->Attributes.Usage.Page == USAGE_PAGE_BUTTON) ||
+ (CurrentItem->Attributes.Usage.Page == USAGE_PAGE_GENERIC_DCTRL));
+}
+
projects / pub / USBasp.git / blobdiff