-/*\r
- LUFA Library\r
- Copyright (C) Dean Camera, 2009.\r
- \r
- dean [at] fourwalledcubicle [dot] com\r
- www.fourwalledcubicle.com\r
-*/\r
-\r
-/*\r
- Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com)\r
-\r
- Permission to use, copy, modify, and distribute this software\r
- and its documentation for any purpose and without fee is hereby\r
- granted, provided that the above copyright notice appear in all\r
- 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
-/** \file\r
- *\r
- * Main source file for the GenericHID demo. This file contains the main tasks of\r
- * the demo and is responsible for the initial application hardware configuration.\r
- */\r
-\r
-#include "GenericHID.h"\r
-\r
-/** LUFA HID Class driver interface configuration and state information. This structure is\r
- * passed to all HID Class driver functions, so that multiple instances of the same class\r
- * within a device can be differentiated from one another.\r
- */\r
-USB_ClassInfo_HID_t Generic_HID_Interface =\r
- {\r
- .InterfaceNumber = 0,\r
-\r
- .ReportINEndpointNumber = GENERIC_IN_EPNUM,\r
- .ReportINEndpointSize = GENERIC_EPSIZE,\r
- \r
- .ReportINBufferSize = GENERIC_REPORT_SIZE,\r
-\r
- .UsingReportProtocol = true,\r
- };\r
-\r
-/** Main program entry point. This routine contains the overall program flow, including initial\r
- * setup of all components and the main program loop.\r
- */\r
-int main(void)\r
-{\r
- SetupHardware();\r
- \r
- LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);\r
- \r
- for (;;)\r
- {\r
- USB_HID_USBTask(&Generic_HID_Interface);\r
- USB_USBTask();\r
- }\r
-}\r
-\r
-/** Configures the board hardware and chip peripherals for the demo's functionality. */\r
-void SetupHardware(void)\r
-{\r
- /* Disable watchdog if enabled by bootloader/fuses */\r
- MCUSR &= ~(1 << WDRF);\r
- wdt_disable();\r
-\r
- /* Disable clock division */\r
- clock_prescale_set(clock_div_1);\r
-\r
- /* Hardware Initialization */\r
- LEDs_Init();\r
- USB_Init();\r
-\r
- /* Millisecond timer initialization, with output compare interrupt enabled for the idle timing */\r
- OCR0A = ((F_CPU / 64) / 1000);\r
- TCCR0A = (1 << WGM01);\r
- TCCR0B = ((1 << CS01) | (1 << CS00));\r
- TIMSK0 = (1 << OCIE0A);\r
-}\r
-\r
-/** Event handler for the library USB Connection event. */\r
-void EVENT_USB_Connect(void)\r
-{\r
- LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);\r
-}\r
-\r
-/** Event handler for the library USB Disconnection event. */\r
-void EVENT_USB_Disconnect(void)\r
-{\r
- LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);\r
-}\r
-\r
-/** Event handler for the library USB Configuration Changed event. */\r
-void EVENT_USB_ConfigurationChanged(void)\r
-{\r
- LEDs_SetAllLEDs(LEDMASK_USB_READY);\r
-\r
- if (!(USB_HID_ConfigureEndpoints(&Generic_HID_Interface)))\r
- LEDs_SetAllLEDs(LEDMASK_USB_ERROR);\r
-}\r
-\r
-/** Event handler for the library USB Unhandled Control Packet event. */\r
-void EVENT_USB_UnhandledControlPacket(void)\r
-{\r
- USB_HID_ProcessControlPacket(&Generic_HID_Interface);\r
-}\r
-\r
-/** ISR to keep track of each millisecond interrupt, for determining the HID class idle period remaining when set. */\r
-ISR(TIMER0_COMPA_vect, ISR_BLOCK)\r
-{\r
- if (Generic_HID_Interface.IdleMSRemaining)\r
- Generic_HID_Interface.IdleMSRemaining--;\r
-}\r
-\r
-/** HID class driver callback function for the creation of HID reports to the host.\r
- *\r
- * \param HIDInterfaceInfo Pointer to the HID class interface configuration structure being referenced\r
- * \param ReportData Pointer to a buffer where the created report should be stored\r
- *\r
- * \return Number of bytes written in the report (or zero if no report is to be sent\r
- */\r
-uint16_t CALLBACK_USB_HID_CreateNextHIDReport(USB_ClassInfo_HID_t* HIDInterfaceInfo, uint8_t* ReportID, void* ReportData)\r
-{\r
- // Create generic HID report here\r
- \r
- return 0;\r
-}\r
-\r
-/** HID class driver callback function for the processing of HID reports from the host.\r
- *\r
- * \param HIDInterfaceInfo Pointer to the HID class interface configuration structure being referenced\r
- * \param ReportData Pointer to a buffer where the created report has been stored\r
- * \param ReportSize Size in bytes of the received HID report\r
- */\r
-void CALLBACK_USB_HID_ProcessReceivedHIDReport(USB_ClassInfo_HID_t* HIDInterfaceInfo, uint8_t ReportID,\r
- void* ReportData, uint16_t ReportSize)\r
-{\r
- // Process received generic HID report here\r
-}\r
+/*
+ LUFA Library
+ Copyright (C) Dean Camera, 2013.
+
+ dean [at] fourwalledcubicle [dot] com
+ www.lufa-lib.org
+*/
+
+/*
+ Copyright 2013 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 disclaims 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.
+*/
+
+/** \file
+ *
+ * Main source file for the GenericHID demo. This file contains the main tasks of
+ * the demo and is responsible for the initial application hardware configuration.
+ */
+
+#include "GenericHID.h"
+
+/** Buffer to hold the previously generated HID report, for comparison purposes inside the HID class driver. */
+static uint8_t PrevHIDReportBuffer[GENERIC_REPORT_SIZE];
+
+/** LUFA HID Class driver interface configuration and state information. This structure is
+ * passed to all HID Class driver functions, so that multiple instances of the same class
+ * within a device can be differentiated from one another.
+ */
+USB_ClassInfo_HID_Device_t Generic_HID_Interface =
+ {
+ .Config =
+ {
+ .InterfaceNumber = 0,
+ .ReportINEndpoint =
+ {
+ .Address = GENERIC_IN_EPADDR,
+ .Size = GENERIC_EPSIZE,
+ .Banks = 1,
+ },
+ .PrevReportINBuffer = PrevHIDReportBuffer,
+ .PrevReportINBufferSize = sizeof(PrevHIDReportBuffer),
+ },
+ };
+
+
+/** Main program entry point. This routine contains the overall program flow, including initial
+ * setup of all components and the main program loop.
+ */
+int main(void)
+{
+ SetupHardware();
+
+ LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
+ GlobalInterruptEnable();
+
+ for (;;)
+ {
+ HID_Device_USBTask(&Generic_HID_Interface);
+ USB_USBTask();
+ }
+}
+
+/** Configures the board hardware and chip peripherals for the demo's functionality. */
+void SetupHardware(void)
+{
+ /* Disable watchdog if enabled by bootloader/fuses */
+ MCUSR &= ~(1 << WDRF);
+ wdt_disable();
+
+ /* Disable clock division */
+ clock_prescale_set(clock_div_1);
+
+ /* Hardware Initialization */
+ LEDs_Init();
+ USB_Init();
+}
+
+/** Event handler for the library USB Connection event. */
+void EVENT_USB_Device_Connect(void)
+{
+ LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
+}
+
+/** Event handler for the library USB Disconnection event. */
+void EVENT_USB_Device_Disconnect(void)
+{
+ LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
+}
+
+/** Event handler for the library USB Configuration Changed event. */
+void EVENT_USB_Device_ConfigurationChanged(void)
+{
+ bool ConfigSuccess = true;
+
+ ConfigSuccess &= HID_Device_ConfigureEndpoints(&Generic_HID_Interface);
+
+ USB_Device_EnableSOFEvents();
+
+ LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);
+}
+
+/** Event handler for the library USB Control Request reception event. */
+void EVENT_USB_Device_ControlRequest(void)
+{
+ HID_Device_ProcessControlRequest(&Generic_HID_Interface);
+}
+
+/** Event handler for the USB device Start Of Frame event. */
+void EVENT_USB_Device_StartOfFrame(void)
+{
+ HID_Device_MillisecondElapsed(&Generic_HID_Interface);
+}
+
+/** HID class driver callback function for the creation of HID reports to the host.
+ *
+ * \param[in] HIDInterfaceInfo Pointer to the HID class interface configuration structure being referenced
+ * \param[in,out] ReportID Report ID requested by the host if non-zero, otherwise callback should set to the generated report ID
+ * \param[in] ReportType Type of the report to create, either HID_REPORT_ITEM_In or HID_REPORT_ITEM_Feature
+ * \param[out] ReportData Pointer to a buffer where the created report should be stored
+ * \param[out] ReportSize Number of bytes written in the report (or zero if no report is to be sent)
+ *
+ * \return Boolean \c true to force the sending of the report, \c false to let the library determine if it needs to be sent
+ */
+bool CALLBACK_HID_Device_CreateHIDReport(USB_ClassInfo_HID_Device_t* const HIDInterfaceInfo,
+ uint8_t* const ReportID,
+ const uint8_t ReportType,
+ void* ReportData,
+ uint16_t* const ReportSize)
+{
+ uint8_t* Data = (uint8_t*)ReportData;
+ uint8_t CurrLEDMask = LEDs_GetLEDs();
+
+ Data[0] = ((CurrLEDMask & LEDS_LED1) ? 1 : 0);
+ Data[1] = ((CurrLEDMask & LEDS_LED2) ? 1 : 0);
+ Data[2] = ((CurrLEDMask & LEDS_LED3) ? 1 : 0);
+ Data[3] = ((CurrLEDMask & LEDS_LED4) ? 1 : 0);
+
+ *ReportSize = GENERIC_REPORT_SIZE;
+ return false;
+}
+
+/** HID class driver callback function for the processing of HID reports from the host.
+ *
+ * \param[in] HIDInterfaceInfo Pointer to the HID class interface configuration structure being referenced
+ * \param[in] ReportID Report ID of the received report from the host
+ * \param[in] ReportType The type of report that the host has sent, either HID_REPORT_ITEM_Out or HID_REPORT_ITEM_Feature
+ * \param[in] ReportData Pointer to a buffer where the received report has been stored
+ * \param[in] ReportSize Size in bytes of the received HID report
+ */
+void CALLBACK_HID_Device_ProcessHIDReport(USB_ClassInfo_HID_Device_t* const HIDInterfaceInfo,
+ const uint8_t ReportID,
+ const uint8_t ReportType,
+ const void* ReportData,
+ const uint16_t ReportSize)
+{
+ uint8_t* Data = (uint8_t*)ReportData;
+ uint8_t NewLEDMask = LEDS_NO_LEDS;
+
+ if (Data[0])
+ NewLEDMask |= LEDS_LED1;
+
+ if (Data[1])
+ NewLEDMask |= LEDS_LED2;
+
+ if (Data[2])
+ NewLEDMask |= LEDS_LED3;
+
+ if (Data[3])
+ NewLEDMask |= LEDS_LED4;
+
+ LEDs_SetAllLEDs(NewLEDMask);
+}
+