Added beginnings of a new AVRISP-MKII clone project.

[pub/USBasp.git] / Demos / Device / ClassDriver / GenericHID / GenericHID.c

diff --git a/Demos/Device/ClassDriver/GenericHID/GenericHID.c b/Demos/Device/ClassDriver/GenericHID/GenericHID.c
index 4315723..c27558b 100644 (file)
--- a/Demos/Device/ClassDriver/GenericHID/GenericHID.c
+++ b/Demos/Device/ClassDriver/GenericHID/GenericHID.c
@@ -36,6 +36,17 @@
 \r
 #include "GenericHID.h"\r
 \r
+/** Buffer to hold the previously generated HID report, for comparison purposes inside the HID class driver. */\r
+uint8_t PrevHIDReportBuffer[GENERIC_REPORT_SIZE];\r
+\r
+/** Structure to contain reports from the host, so that they can be echoed back upon request */\r
+struct\r
+{\r
+       uint8_t ReportID;\r
+       uint16_t ReportSize;\r
+       uint8_t ReportData[GENERIC_REPORT_SIZE];\r
+} HIDReportEcho;\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
@@ -48,6 +59,9 @@ USB_ClassInfo_HID_Device_t Generic_HID_Interface =
 \r
                                .ReportINEndpointNumber  = GENERIC_IN_EPNUM,\r
                                .ReportINEndpointSize    = GENERIC_EPSIZE,\r
+                               \r
+                               .PrevReportINBuffer      = PrevHIDReportBuffer,\r
+                               .PrevReportINBufferSize  = sizeof(PrevHIDReportBuffer),\r
                        },\r
        };\r
 \r
@@ -80,43 +94,39 @@ void SetupHardware(void)
        /* 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
+void EVENT_USB_Device_Connect(void)\r
 {\r
-       LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);\r
+       LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);       \r
 }\r
 \r
 /** Event handler for the library USB Disconnection event. */\r
-void EVENT_USB_Disconnect(void)\r
+void EVENT_USB_Device_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
+void EVENT_USB_Device_ConfigurationChanged(void)\r
 {\r
        LEDs_SetAllLEDs(LEDMASK_USB_READY);\r
 \r
        if (!(HID_Device_ConfigureEndpoints(&Generic_HID_Interface)))\r
          LEDs_SetAllLEDs(LEDMASK_USB_ERROR);\r
+\r
+       USB_Device_EnableSOFEvents();\r
 }\r
 \r
-/** Event handler for the library USB Unhandled Control Packet event. */\r
-void EVENT_USB_UnhandledControlPacket(void)\r
+/** Event handler for the library USB Unhandled Control Request event. */\r
+void EVENT_USB_Device_UnhandledControlRequest(void)\r
 {\r
-       HID_Device_ProcessControlPacket(&Generic_HID_Interface);\r
+       HID_Device_ProcessControlRequest(&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
+/** Event handler for the USB device Start Of Frame event. */\r
+void EVENT_USB_Device_StartOfFrame(void)\r
 {\r
        HID_Device_MillisecondElapsed(&Generic_HID_Interface);\r
 }\r
@@ -126,14 +136,20 @@ ISR(TIMER0_COMPA_vect, ISR_BLOCK)
  *  \param[in] HIDInterfaceInfo  Pointer to the HID class interface configuration structure being referenced\r
  *  \param[in,out] ReportID  Report ID requested by the host if non-zero, otherwise callback should set to the generated report ID\r
  *  \param[out] ReportData  Pointer to a buffer where the created report should be stored\r
+ *  \param[out] ReportSize  Number of bytes written in the report (or zero if no report is to be sent\r
  *\r
- *  \return Number of bytes written in the report (or zero if no report is to be sent\r
+ *  \return Boolean true to force the sending of the report, false to let the library determine if it needs to be sent\r
  */\r
-uint16_t CALLBACK_HID_Device_CreateHIDReport(USB_ClassInfo_HID_Device_t* const HIDInterfaceInfo, uint8_t* const ReportID, void* ReportData)\r
+bool CALLBACK_HID_Device_CreateHIDReport(USB_ClassInfo_HID_Device_t* const HIDInterfaceInfo, uint8_t* const ReportID,\r
+                                         void* ReportData, uint16_t* ReportSize)\r
 {\r
-       // Create generic HID report here\r
+       if (HIDReportEcho.ReportID)\r
+         *ReportID = HIDReportEcho.ReportID;\r
+\r
+       memcpy(ReportData, HIDReportEcho.ReportData, HIDReportEcho.ReportSize);\r
        \r
-       return 0;\r
+       *ReportSize = HIDReportEcho.ReportSize;\r
+       return true;\r
 }\r
 \r
 /** HID class driver callback function for the processing of HID reports from the host.\r
@@ -146,5 +162,7 @@ uint16_t CALLBACK_HID_Device_CreateHIDReport(USB_ClassInfo_HID_Device_t* const H
 void CALLBACK_HID_Device_ProcessHIDReport(USB_ClassInfo_HID_Device_t* const HIDInterfaceInfo, const uint8_t ReportID,\r
                                           const void* ReportData, const uint16_t ReportSize)\r
 {\r
-       // Process received generic HID report here\r
+       HIDReportEcho.ReportID   = ReportID;\r
+       HIDReportEcho.ReportSize = ReportSize;\r
+       memcpy(HIDReportEcho.ReportData, ReportData, ReportSize);\r
 }\r