Fix demos based on the device mode HID class driver, as well as the driver itself...

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

diff --git a/Demos/Device/ClassDriver/KeyboardMouse/KeyboardMouse.c b/Demos/Device/ClassDriver/KeyboardMouse/KeyboardMouse.c
index 418ccba..abaf380 100644 (file)
--- a/Demos/Device/ClassDriver/KeyboardMouse/KeyboardMouse.c
+++ b/Demos/Device/ClassDriver/KeyboardMouse/KeyboardMouse.c
@@ -37,6 +37,12 @@
 \r
 #include "KeyboardMouse.h"\r
 \r
+/** Buffer to hold the previously generated Keyboard HID report, for comparison purposes inside the HID class driver. */\r
+uint8_t PrevKeyboardHIDReportBuffer[sizeof(USB_KeyboardReport_Data_t)];\r
+\r
+/** Buffer to hold the previously generated Mouse HID report, for comparison purposes inside the HID class driver. */\r
+uint8_t PrevMouseHIDReportBuffer[sizeof(USB_MouseReport_Data_t)];\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. This is for the keyboard HID\r
@@ -50,6 +56,9 @@ USB_ClassInfo_HID_Device_t Keyboard_HID_Interface =
 \r
                                .ReportINEndpointNumber  = KEYBOARD_IN_EPNUM,\r
                                .ReportINEndpointSize    = HID_EPSIZE,\r
+\r
+                               .PrevReportINBuffer      = PrevKeyboardHIDReportBuffer,\r
+                               .PrevReportINBufferSize  = sizeof(PrevKeyboardHIDReportBuffer),\r
                        },\r
        };\r
        \r
@@ -66,6 +75,9 @@ USB_ClassInfo_HID_Device_t Mouse_HID_Interface =
 \r
                                .ReportINEndpointNumber  = MOUSE_IN_EPNUM,\r
                                .ReportINEndpointSize    = HID_EPSIZE,\r
+\r
+                               .PrevReportINBuffer      = PrevMouseHIDReportBuffer,\r
+                               .PrevReportINBufferSize  = sizeof(PrevMouseHIDReportBuffer),\r
                        },              \r
        };\r
 \r
@@ -151,10 +163,12 @@ 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
        uint8_t JoyStatus_LCL    = Joystick_GetStatus();\r
        uint8_t ButtonStatus_LCL = Buttons_GetStatus();\r
@@ -179,8 +193,9 @@ uint16_t CALLBACK_HID_Device_CreateHIDReport(USB_ClassInfo_HID_Device_t* const H
 \r
                if (JoyStatus_LCL & JOY_PRESS)\r
                  KeyboardReport->KeyCode[0] = 0x08; // E\r
-                 \r
-               return sizeof(USB_KeyboardReport_Data_t);\r
+               \r
+               *ReportSize = sizeof(USB_KeyboardReport_Data_t);\r
+               return false;\r
        }\r
        else\r
        {\r
@@ -203,7 +218,8 @@ uint16_t CALLBACK_HID_Device_CreateHIDReport(USB_ClassInfo_HID_Device_t* const H
                if (JoyStatus_LCL & JOY_PRESS)\r
                  MouseReport->Button  = (1 << 0);\r
                \r
-               return sizeof(USB_MouseReport_Data_t);          \r
+               *ReportSize = sizeof(USB_MouseReport_Data_t);\r
+               return true;            \r
        }\r
 }\r
 \r