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310 lines
9.6 KiB
310 lines
9.6 KiB
/*
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LUFA Library
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Copyright (C) Dean Camera, 2013.
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dean [at] fourwalledcubicle [dot] com
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www.lufa-lib.org
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*/
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/*
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Copyright 2013 Dean Camera (dean [at] fourwalledcubicle [dot] com)
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Copyright 2010 Denver Gingerich (denver [at] ossguy [dot] com)
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Permission to use, copy, modify, distribute, and sell this
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software and its documentation for any purpose is hereby granted
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without fee, provided that the above copyright notice appear in
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all copies and that both that the copyright notice and this
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permission notice and warranty disclaimer appear in supporting
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documentation, and that the name of the author not be used in
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advertising or publicity pertaining to distribution of the
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software without specific, written prior permission.
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The author disclaims all warranties with regard to this
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software, including all implied warranties of merchantability
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and fitness. In no event shall the author be liable for any
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special, indirect or consequential damages or any damages
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whatsoever resulting from loss of use, data or profits, whether
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in an action of contract, negligence or other tortious action,
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arising out of or in connection with the use or performance of
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this software.
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*/
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/** \file
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*
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* Main source file for the KeyboardMouse demo. This file contains the main tasks of the demo and
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* is responsible for the initial application hardware configuration.
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*/
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#include "KeyboardMouse.h"
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/** Global structure to hold the current keyboard interface HID report, for transmission to the host */
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static USB_KeyboardReport_Data_t KeyboardReportData;
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/** Global structure to hold the current mouse interface HID report, for transmission to the host */
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static USB_MouseReport_Data_t MouseReportData;
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/** Main program entry point. This routine configures the hardware required by the application, then
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* enters a loop to run the application tasks in sequence.
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*/
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int main(void)
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{
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SetupHardware();
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LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
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GlobalInterruptEnable();
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for (;;)
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{
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Keyboard_HID_Task();
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Mouse_HID_Task();
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USB_USBTask();
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}
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}
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/** Configures the board hardware and chip peripherals for the demo's functionality. */
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void SetupHardware(void)
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{
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/* Disable watchdog if enabled by bootloader/fuses */
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MCUSR &= ~(1 << WDRF);
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wdt_disable();
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/* Disable clock division */
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clock_prescale_set(clock_div_1);
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/* Hardware Initialization */
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Joystick_Init();
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LEDs_Init();
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USB_Init();
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}
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/** Event handler for the USB_Connect event. This indicates that the device is enumerating via the status LEDs and
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* starts the library USB task to begin the enumeration and USB management process.
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*/
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void EVENT_USB_Device_Connect(void)
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{
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/* Indicate USB enumerating */
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LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
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}
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/** Event handler for the USB_Disconnect event. This indicates that the device is no longer connected to a host via
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* the status LEDs and stops the USB management task.
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*/
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void EVENT_USB_Device_Disconnect(void)
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{
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/* Indicate USB not ready */
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LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
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}
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/** Event handler for the USB_ConfigurationChanged event. This is fired when the host sets the current configuration
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* of the USB device after enumeration, and configures the keyboard and mouse device endpoints.
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*/
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void EVENT_USB_Device_ConfigurationChanged(void)
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{
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bool ConfigSuccess = true;
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/* Setup Keyboard HID Report Endpoints */
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ConfigSuccess &= Endpoint_ConfigureEndpoint(KEYBOARD_IN_EPADDR, EP_TYPE_INTERRUPT, HID_EPSIZE, 1);
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ConfigSuccess &= Endpoint_ConfigureEndpoint(KEYBOARD_OUT_EPADDR, EP_TYPE_INTERRUPT, HID_EPSIZE, 1);
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/* Setup Mouse HID Report Endpoint */
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ConfigSuccess &= Endpoint_ConfigureEndpoint(MOUSE_IN_EPADDR, EP_TYPE_INTERRUPT, HID_EPSIZE, 1);
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/* Indicate endpoint configuration success or failure */
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LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);
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}
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/** Event handler for the USB_ControlRequest event. This is used to catch and process control requests sent to
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* the device from the USB host before passing along unhandled control requests to the library for processing
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* internally.
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*/
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void EVENT_USB_Device_ControlRequest(void)
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{
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uint8_t* ReportData;
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uint8_t ReportSize;
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/* Handle HID Class specific requests */
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switch (USB_ControlRequest.bRequest)
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{
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case HID_REQ_GetReport:
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if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE))
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{
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Endpoint_ClearSETUP();
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/* Determine if it is the mouse or the keyboard data that is being requested */
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if (!(USB_ControlRequest.wIndex))
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{
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ReportData = (uint8_t*)&KeyboardReportData;
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ReportSize = sizeof(KeyboardReportData);
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}
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else
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{
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ReportData = (uint8_t*)&MouseReportData;
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ReportSize = sizeof(MouseReportData);
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}
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/* Write the report data to the control endpoint */
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Endpoint_Write_Control_Stream_LE(ReportData, ReportSize);
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Endpoint_ClearOUT();
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/* Clear the report data afterwards */
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memset(ReportData, 0, ReportSize);
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}
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break;
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case HID_REQ_SetReport:
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if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE))
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{
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Endpoint_ClearSETUP();
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/* Wait until the LED report has been sent by the host */
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while (!(Endpoint_IsOUTReceived()))
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{
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if (USB_DeviceState == DEVICE_STATE_Unattached)
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return;
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}
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/* Read in the LED report from the host */
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uint8_t LEDStatus = Endpoint_Read_8();
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Endpoint_ClearOUT();
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Endpoint_ClearStatusStage();
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/* Process the incoming LED report */
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Keyboard_ProcessLEDReport(LEDStatus);
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}
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break;
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}
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}
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/** Processes a given Keyboard LED report from the host, and sets the board LEDs to match. Since the Keyboard
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* LED report can be sent through either the control endpoint (via a HID SetReport request) or the HID OUT
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* endpoint, the processing code is placed here to avoid duplicating it and potentially having different
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* behavior depending on the method used to sent it.
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*/
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void Keyboard_ProcessLEDReport(const uint8_t LEDStatus)
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{
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uint8_t LEDMask = LEDS_LED2;
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if (LEDStatus & HID_KEYBOARD_LED_NUMLOCK)
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LEDMask |= LEDS_LED1;
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if (LEDStatus & HID_KEYBOARD_LED_CAPSLOCK)
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LEDMask |= LEDS_LED3;
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if (LEDStatus & HID_KEYBOARD_LED_SCROLLLOCK)
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LEDMask |= LEDS_LED4;
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/* Set the status LEDs to the current Keyboard LED status */
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LEDs_SetAllLEDs(LEDMask);
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}
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/** Keyboard task. This generates the next keyboard HID report for the host, and transmits it via the
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* keyboard IN endpoint when the host is ready for more data. Additionally, it processes host LED status
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* reports sent to the device via the keyboard OUT reporting endpoint.
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*/
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void Keyboard_HID_Task(void)
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{
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uint8_t JoyStatus_LCL = Joystick_GetStatus();
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/* Device must be connected and configured for the task to run */
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if (USB_DeviceState != DEVICE_STATE_Configured)
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return;
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/* Check if board button is not pressed, if so mouse mode enabled */
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if (!(Buttons_GetStatus() & BUTTONS_BUTTON1))
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{
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/* Make sent key uppercase by indicating that the left shift key is pressed */
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KeyboardReportData.Modifier = HID_KEYBOARD_MODIFIER_LEFTSHIFT;
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if (JoyStatus_LCL & JOY_UP)
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KeyboardReportData.KeyCode[0] = HID_KEYBOARD_SC_A;
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else if (JoyStatus_LCL & JOY_DOWN)
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KeyboardReportData.KeyCode[0] = HID_KEYBOARD_SC_B;
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if (JoyStatus_LCL & JOY_LEFT)
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KeyboardReportData.KeyCode[0] = HID_KEYBOARD_SC_C;
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else if (JoyStatus_LCL & JOY_RIGHT)
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KeyboardReportData.KeyCode[0] = HID_KEYBOARD_SC_D;
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if (JoyStatus_LCL & JOY_PRESS)
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KeyboardReportData.KeyCode[0] = HID_KEYBOARD_SC_E;
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}
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/* Select the Keyboard Report Endpoint */
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Endpoint_SelectEndpoint(KEYBOARD_IN_EPADDR);
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/* Check if Keyboard Endpoint Ready for Read/Write */
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if (Endpoint_IsReadWriteAllowed())
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{
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/* Write Keyboard Report Data */
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Endpoint_Write_Stream_LE(&KeyboardReportData, sizeof(KeyboardReportData), NULL);
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/* Finalize the stream transfer to send the last packet */
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Endpoint_ClearIN();
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/* Clear the report data afterwards */
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memset(&KeyboardReportData, 0, sizeof(KeyboardReportData));
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}
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/* Select the Keyboard LED Report Endpoint */
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Endpoint_SelectEndpoint(KEYBOARD_OUT_EPADDR);
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/* Check if Keyboard LED Endpoint Ready for Read/Write */
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if (Endpoint_IsReadWriteAllowed())
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{
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/* Read in and process the LED report from the host */
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Keyboard_ProcessLEDReport(Endpoint_Read_8());
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/* Handshake the OUT Endpoint - clear endpoint and ready for next report */
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Endpoint_ClearOUT();
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}
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}
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/** Mouse task. This generates the next mouse HID report for the host, and transmits it via the
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* mouse IN endpoint when the host is ready for more data.
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*/
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void Mouse_HID_Task(void)
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{
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uint8_t JoyStatus_LCL = Joystick_GetStatus();
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/* Device must be connected and configured for the task to run */
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if (USB_DeviceState != DEVICE_STATE_Configured)
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return;
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/* Check if board button is pressed, if so mouse mode enabled */
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if (Buttons_GetStatus() & BUTTONS_BUTTON1)
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{
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if (JoyStatus_LCL & JOY_UP)
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MouseReportData.Y = 1;
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else if (JoyStatus_LCL & JOY_DOWN)
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MouseReportData.Y = -1;
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if (JoyStatus_LCL & JOY_RIGHT)
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MouseReportData.X = 1;
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else if (JoyStatus_LCL & JOY_LEFT)
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MouseReportData.X = -1;
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if (JoyStatus_LCL & JOY_PRESS)
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MouseReportData.Button |= (1 << 0);
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}
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/* Select the Mouse Report Endpoint */
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Endpoint_SelectEndpoint(MOUSE_IN_EPADDR);
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/* Check if Mouse Endpoint Ready for Read/Write */
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if (Endpoint_IsReadWriteAllowed())
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{
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/* Write Mouse Report Data */
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Endpoint_Write_Stream_LE(&MouseReportData, sizeof(MouseReportData), NULL);
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/* Finalize the stream transfer to send the last packet */
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Endpoint_ClearIN();
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/* Clear the report data afterwards */
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memset(&MouseReportData, 0, sizeof(MouseReportData));
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}
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}
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