Move new Class Driver powered demos to a new ClassDriver subdirectory, re-add old low level demos to a LowLevel subdirectory.
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Dean Camera
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Demos/Device/LowLevel/KeyboardMouse/KeyboardMouse.c
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350
Demos/Device/LowLevel/KeyboardMouse/KeyboardMouse.c
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/*
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LUFA Library
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Copyright (C) Dean Camera, 2009.
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dean [at] fourwalledcubicle [dot] com
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www.fourwalledcubicle.com
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*/
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/*
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Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com)
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Copyright 2009 Denver Gingerich (denver [at] ossguy [dot] com)
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Permission to use, copy, modify, and distribute this software
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and its documentation for any purpose and without fee is hereby
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granted, provided that the above copyright notice appear in all
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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 disclaim 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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/* Scheduler Task List */
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TASK_LIST
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{
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{ .Task = USB_USBTask , .TaskStatus = TASK_STOP },
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{ .Task = USB_Mouse , .TaskStatus = TASK_RUN },
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{ .Task = USB_Keyboard , .TaskStatus = TASK_RUN },
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};
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/* Global Variables */
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/** Global structure to hold the current keyboard interface HID report, for transmission to the host */
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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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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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* starts the scheduler to run the USB management task.
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*/
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int main(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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/* Indicate USB not ready */
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UpdateStatus(Status_USBNotReady);
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/* Initialize Scheduler so that it can be used */
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Scheduler_Init();
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/* Initialize USB Subsystem */
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USB_Init();
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/* Scheduling - routine never returns, so put this last in the main function */
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Scheduler_Start();
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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_Connect(void)
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{
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/* Start USB management task */
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Scheduler_SetTaskMode(USB_USBTask, TASK_RUN);
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/* Indicate USB enumerating */
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UpdateStatus(Status_USBEnumerating);
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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_Disconnect(void)
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{
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/* Stop running HID reporting and USB management tasks */
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Scheduler_SetTaskMode(USB_USBTask, TASK_STOP);
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/* Indicate USB not ready */
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UpdateStatus(Status_USBNotReady);
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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_ConfigurationChanged(void)
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{
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/* Setup Keyboard Report Endpoint */
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Endpoint_ConfigureEndpoint(KEYBOARD_IN_EPNUM, EP_TYPE_INTERRUPT,
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ENDPOINT_DIR_IN, HID_EPSIZE,
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ENDPOINT_BANK_SINGLE);
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/* Setup Keyboard LED Report Endpoint */
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Endpoint_ConfigureEndpoint(KEYBOARD_OUT_EPNUM, EP_TYPE_INTERRUPT,
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ENDPOINT_DIR_OUT, HID_EPSIZE,
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ENDPOINT_BANK_SINGLE);
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/* Setup Mouse Report Endpoint */
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Endpoint_ConfigureEndpoint(MOUSE_IN_EPNUM, EP_TYPE_INTERRUPT,
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ENDPOINT_DIR_IN, HID_EPSIZE,
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ENDPOINT_BANK_SINGLE);
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/* Indicate USB connected and ready */
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UpdateStatus(Status_USBReady);
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}
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/** Event handler for the USB_UnhandledControlPacket event. This is used to catch standard and class specific
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* control requests that are not handled internally by the USB library (including the HID commands, which are
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* all issued via the control endpoint), so that they can be handled appropriately for the application.
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*/
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void EVENT_USB_UnhandledControlPacket(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 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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/* Clear the report data afterwards */
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memset(ReportData, 0, ReportSize);
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/* Finalize the stream transfer to send the last packet or clear the host abort */
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Endpoint_ClearOUT();
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}
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break;
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case 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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/* Read in the LED report from the host */
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uint8_t LEDStatus = Endpoint_Read_Byte();
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uint8_t LEDMask = LEDS_LED2;
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if (LEDStatus & 0x01) // NUM Lock
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LEDMask |= LEDS_LED1;
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if (LEDStatus & 0x02) // CAPS Lock
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LEDMask |= LEDS_LED3;
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if (LEDStatus & 0x04) // SCROLL Lock
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LEDMask |= LEDS_LED4;
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/* Set the status LEDs to the current HID LED status */
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LEDs_SetAllLEDs(LEDMask);
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/* Clear the endpoint data */
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Endpoint_ClearOUT();
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/* Acknowledge status stage */
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while (!(Endpoint_IsINReady()));
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Endpoint_ClearIN();
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}
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break;
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}
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}
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/** Function to manage status updates to the user. This is done via LEDs on the given board, if available, but may be changed to
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* log to a serial port, or anything else that is suitable for status updates.
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*
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* \param CurrentStatus Current status of the system, from the KeyboardMouse_StatusCodes_t enum
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*/
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void UpdateStatus(uint8_t CurrentStatus)
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{
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uint8_t LEDMask = LEDS_NO_LEDS;
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/* Set the LED mask to the appropriate LED mask based on the given status code */
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switch (CurrentStatus)
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{
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case Status_USBNotReady:
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LEDMask = (LEDS_LED1);
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break;
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case Status_USBEnumerating:
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LEDMask = (LEDS_LED1 | LEDS_LED2);
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break;
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case Status_USBReady:
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LEDMask = (LEDS_LED2 | LEDS_LED4);
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break;
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}
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/* Set the board LEDs to the new LED mask */
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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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TASK(USB_Keyboard)
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{
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uint8_t JoyStatus_LCL = Joystick_GetStatus();
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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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if (JoyStatus_LCL & JOY_UP)
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KeyboardReportData.KeyCode[0] = 0x04; // A
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else if (JoyStatus_LCL & JOY_DOWN)
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KeyboardReportData.KeyCode[0] = 0x05; // B
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if (JoyStatus_LCL & JOY_LEFT)
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KeyboardReportData.KeyCode[0] = 0x06; // C
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else if (JoyStatus_LCL & JOY_RIGHT)
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KeyboardReportData.KeyCode[0] = 0x07; // D
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if (JoyStatus_LCL & JOY_PRESS)
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KeyboardReportData.KeyCode[0] = 0x08; // E
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}
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/* Check if the USB system is connected to a host and report protocol mode is enabled */
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if (USB_IsConnected)
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{
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/* Select the Keyboard Report Endpoint */
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Endpoint_SelectEndpoint(KEYBOARD_IN_EPNUM);
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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));
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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_EPNUM);
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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 the LED report from the host */
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uint8_t LEDStatus = Endpoint_Read_Byte();
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uint8_t LEDMask = LEDS_LED2;
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if (LEDStatus & 0x01) // NUM Lock
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LEDMask |= LEDS_LED1;
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if (LEDStatus & 0x02) // CAPS Lock
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LEDMask |= LEDS_LED3;
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if (LEDStatus & 0x04) // SCROLL Lock
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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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/* 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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}
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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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TASK(USB_Mouse)
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{
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uint8_t JoyStatus_LCL = Joystick_GetStatus();
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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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/* Check if the USB system is connected to a host and report protocol mode is enabled */
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if (USB_IsConnected)
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{
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/* Select the Mouse Report Endpoint */
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Endpoint_SelectEndpoint(MOUSE_IN_EPNUM);
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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));
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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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}
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