diff options
Diffstat (limited to 'Demos/Device/ClassDriver/CDCMouse/CDCMouse.c')
| -rw-r--r-- | Demos/Device/ClassDriver/CDCMouse/CDCMouse.c | 235 |
1 files changed, 235 insertions, 0 deletions
diff --git a/Demos/Device/ClassDriver/CDCMouse/CDCMouse.c b/Demos/Device/ClassDriver/CDCMouse/CDCMouse.c new file mode 100644 index 000000000..1102b7e81 --- /dev/null +++ b/Demos/Device/ClassDriver/CDCMouse/CDCMouse.c @@ -0,0 +1,235 @@ +/*
+ LUFA Library
+ Copyright (C) Dean Camera, 2009.
+
+ dean [at] fourwalledcubicle [dot] com
+ www.fourwalledcubicle.com
+*/
+
+/*
+ Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com)
+
+ Permission to use, copy, modify, and distribute this software
+ and its documentation for any purpose and without fee is hereby
+ granted, 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.
+*/
+
+/** \file
+ *
+ * Main source file for the CDCMouse demo. This file contains the main tasks of
+ * the demo and is responsible for the initial application hardware configuration.
+ */
+
+#include "CDCMouse.h"
+
+/** LUFA CDC Class driver interface configuration and state information. This structure is
+ * passed to all CDC Class driver functions, so that multiple instances of the same class
+ * within a device can be differentiated from one another.
+ */
+USB_ClassInfo_CDC_Device_t VirtualSerial_CDC_Interface =
+ {
+ .Config =
+ {
+ .ControlInterfaceNumber = 0,
+
+ .DataINEndpointNumber = CDC_TX_EPNUM,
+ .DataINEndpointSize = CDC_TXRX_EPSIZE,
+
+ .DataOUTEndpointNumber = CDC_RX_EPNUM,
+ .DataOUTEndpointSize = CDC_TXRX_EPSIZE,
+
+ .NotificationEndpointNumber = CDC_NOTIFICATION_EPNUM,
+ .NotificationEndpointSize = CDC_NOTIFICATION_EPSIZE,
+ },
+ };
+
+/** Buffer to hold the previously generated Mouse HID report, for comparison purposes inside the HID class driver. */
+uint8_t PrevMouseHIDReportBuffer[sizeof(USB_MouseReport_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.
+ */
+USB_ClassInfo_HID_Device_t Mouse_HID_Interface =
+ {
+ .Config =
+ {
+ .InterfaceNumber = 0,
+
+ .ReportINEndpointNumber = MOUSE_EPNUM,
+ .ReportINEndpointSize = MOUSE_EPSIZE,
+
+ .PrevReportINBuffer = PrevMouseHIDReportBuffer,
+ .PrevReportINBufferSize = sizeof(PrevMouseHIDReportBuffer),
+ },
+ };
+
+/** 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);
+
+ for (;;)
+ {
+ CheckJoystickMovement();
+
+ /* Must throw away unused bytes from the host, or it will lock up while waiting for the device */
+ while (CDC_Device_BytesReceived(&VirtualSerial_CDC_Interface))
+ CDC_Device_ReceiveByte(&VirtualSerial_CDC_Interface);
+
+ CDC_Device_USBTask(&VirtualSerial_CDC_Interface);
+ HID_Device_USBTask(&Mouse_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 */
+ Joystick_Init();
+ LEDs_Init();
+ USB_Init();
+}
+
+/** Checks for changes in the position of the board joystick, sending strings to the host upon each change. */
+void CheckJoystickMovement(void)
+{
+ uint8_t JoyStatus_LCL = Joystick_GetStatus();
+ char* ReportString = NULL;
+ static bool ActionSent = false;
+
+ if (JoyStatus_LCL & JOY_UP)
+ ReportString = "Joystick Up\r\n";
+ else if (JoyStatus_LCL & JOY_DOWN)
+ ReportString = "Joystick Down\r\n";
+ else if (JoyStatus_LCL & JOY_LEFT)
+ ReportString = "Joystick Left\r\n";
+ else if (JoyStatus_LCL & JOY_RIGHT)
+ ReportString = "Joystick Right\r\n";
+ else if (JoyStatus_LCL & JOY_PRESS)
+ ReportString = "Joystick Pressed\r\n";
+ else
+ ActionSent = false;
+
+ if ((ReportString != NULL) && (ActionSent == false))
+ {
+ ActionSent = true;
+
+ CDC_Device_SendString(&VirtualSerial_CDC_Interface, ReportString, strlen(ReportString));
+ }
+}
+
+/** 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)
+{
+ LEDs_SetAllLEDs(LEDMASK_USB_READY);
+
+ if (!(CDC_Device_ConfigureEndpoints(&VirtualSerial_CDC_Interface)))
+ LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+
+ if (!(HID_Device_ConfigureEndpoints(&Mouse_HID_Interface)))
+ LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+
+ USB_Device_EnableSOFEvents();
+}
+
+/** Event handler for the library USB Unhandled Control Request event. */
+void EVENT_USB_Device_UnhandledControlRequest(void)
+{
+ CDC_Device_ProcessControlRequest(&VirtualSerial_CDC_Interface);
+ HID_Device_ProcessControlRequest(&Mouse_HID_Interface);
+}
+
+/** Event handler for the USB device Start Of Frame event. */
+void EVENT_USB_Device_StartOfFrame(void)
+{
+ HID_Device_MillisecondElapsed(&Mouse_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[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 true to force the sending of the report, 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,
+ void* ReportData, uint16_t* ReportSize)
+{
+ USB_MouseReport_Data_t* MouseReport = (USB_MouseReport_Data_t*)ReportData;
+
+ uint8_t JoyStatus_LCL = Joystick_GetStatus();
+ uint8_t ButtonStatus_LCL = Buttons_GetStatus();
+
+ if (JoyStatus_LCL & JOY_UP)
+ MouseReport->Y = -1;
+ else if (JoyStatus_LCL & JOY_DOWN)
+ MouseReport->Y = 1;
+
+ if (JoyStatus_LCL & JOY_RIGHT)
+ MouseReport->X = 1;
+ else if (JoyStatus_LCL & JOY_LEFT)
+ MouseReport->X = -1;
+
+ if (JoyStatus_LCL & JOY_PRESS)
+ MouseReport->Button = (1 << 0);
+
+ if (ButtonStatus_LCL & BUTTONS_BUTTON1)
+ MouseReport->Button |= (1 << 1);
+
+ *ReportSize = sizeof(USB_MouseReport_Data_t);
+ return true;
+}
+
+/** 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] ReportData Pointer to a buffer where the created 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 void* ReportData, const uint16_t ReportSize)
+{
+ // Unused (but mandatory for the HID class driver) in this demo, since there are no Host->Device reports
+}
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