X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/864196c884ef3602aee44f1a68aceb5819a07f21..384848253274a7afa74e463a56e1257cf3b8924e:/Demos/Device/ClassDriver/Keyboard/Keyboard.c

diff --git a/Demos/Device/ClassDriver/Keyboard/Keyboard.c b/Demos/Device/ClassDriver/Keyboard/Keyboard.c
index ba0d2396f..6f0bd1d1a 100644
--- a/Demos/Device/ClassDriver/Keyboard/Keyboard.c
+++ b/Demos/Device/ClassDriver/Keyboard/Keyboard.c
@@ -37,6 +37,9 @@
 
 #include "Keyboard.h"
 
+/** Buffer to hold the previously generated Keyboard HID report, for comparison purposes inside the HID class driver. */
+uint8_t PrevKeyboardHIDReportBuffer[sizeof(USB_KeyboardReport_Data_t)];
+
 /** 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.
@@ -50,7 +53,8 @@ USB_ClassInfo_HID_Device_t Keyboard_HID_Interface =
 				.ReportINEndpointNumber  = KEYBOARD_EPNUM,
 				.ReportINEndpointSize    = KEYBOARD_EPSIZE,
 
-				.ReportINBufferSize      = sizeof(USB_KeyboardReport_Data_t),
+				.PrevReportINBuffer      = PrevKeyboardHIDReportBuffer,
+				.PrevReportINBufferSize  = sizeof(PrevKeyboardHIDReportBuffer),
 			},
     };
 
@@ -94,19 +98,19 @@ void SetupHardware()
 }
 
 /** Event handler for the library USB Connection event. */
-void EVENT_USB_Connect(void)
+void EVENT_USB_Device_Connect(void)
 {
 	LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
 }
 
 /** Event handler for the library USB Disconnection event. */
-void EVENT_USB_Disconnect(void)
+void EVENT_USB_Device_Disconnect(void)
 {
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
 }
 
 /** Event handler for the library USB Configuration Changed event. */
-void EVENT_USB_ConfigurationChanged(void)
+void EVENT_USB_Device_ConfigurationChanged(void)
 {
 	LEDs_SetAllLEDs(LEDMASK_USB_READY);
 
@@ -114,17 +118,16 @@ void EVENT_USB_ConfigurationChanged(void)
 	  LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 }
 
-/** Event handler for the library USB Unhandled Control Packet event. */
-void EVENT_USB_UnhandledControlPacket(void)
+/** Event handler for the library USB Unhandled Control Request event. */
+void EVENT_USB_Device_UnhandledControlRequest(void)
 {
-	HID_Device_ProcessControlPacket(&Keyboard_HID_Interface);
+	HID_Device_ProcessControlRequest(&Keyboard_HID_Interface);
 }
 
 /** ISR to keep track of each millisecond interrupt, for determining the HID class idle period remaining when set. */
 ISR(TIMER0_COMPA_vect, ISR_BLOCK)
 {
-	if (Keyboard_HID_Interface.State.IdleMSRemaining)
-	  Keyboard_HID_Interface.State.IdleMSRemaining--;
+	HID_Device_MillisecondElapsed(&Keyboard_HID_Interface);
 }
 
 /** HID class driver callback function for the creation of HID reports to the host.
@@ -132,10 +135,12 @@ ISR(TIMER0_COMPA_vect, ISR_BLOCK)
  *  \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[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 Number of bytes written in the report (or zero if no report is to be sent
+ *  \return Boolean true to force the sending of the report, false to let the library determine if it needs to be sent
  */
-uint16_t CALLBACK_HID_Device_CreateHIDReport(USB_ClassInfo_HID_Device_t* const HIDInterfaceInfo, uint8_t* const ReportID, void* ReportData)
+bool CALLBACK_HID_Device_CreateHIDReport(USB_ClassInfo_HID_Device_t* const HIDInterfaceInfo, uint8_t* const ReportID,
+                                         void* ReportData, uint16_t* ReportSize)
 {
 	USB_KeyboardReport_Data_t* KeyboardReport = (USB_KeyboardReport_Data_t*)ReportData;
 	
@@ -157,8 +162,9 @@ uint16_t CALLBACK_HID_Device_CreateHIDReport(USB_ClassInfo_HID_Device_t* const H
 	  
 	if (ButtonStatus_LCL & BUTTONS_BUTTON1)
 	  KeyboardReport->KeyCode[0] = 0x09; // F
-	  
-	return sizeof(USB_KeyboardReport_Data_t);
+	
+	*ReportSize = sizeof(USB_KeyboardReport_Data_t);
+	return false;
 }
 
 /** HID class driver callback function for the processing of HID reports from the host.