/* LUFA Library Copyright (C) Dean Camera, 2013. dean [at] fourwalledcubicle [dot] com www.lufa-lib.org */ /* Copyright 2013 Dean Camera (dean [at] fourwalledcubicle [dot] com) Permission to use, copy, modify, distribute, and sell this software and its documentation for any purpose is hereby granted without fee, 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 disclaims 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. */ /* Modified by Oscar Rodriguez Parra (oscarrp [at] gmail [dot] com) */ /** \file * * Main source file for the Keyboard demo. This file contains the main tasks of * the demo and is responsible for the initial application hardware configuration. */ #include #include #include "Keyboard.h" /** Buffer to hold the previously generated Keyboard HID report, for comparison purposes inside the HID class driver. */ static uint8_t PrevKeyboardHIDReportBuffer[sizeof(USB_KeyboardReport_Data_t)]; volatile bool press; // A flag indicating if key press should be emulated or not. volatile int next = 0; // A ticks counter to wait before next key press volatile int counter = 0; /** 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 Keyboard_HID_Interface = { .Config = { .InterfaceNumber = 0, .ReportINEndpoint = { .Address = KEYBOARD_EPADDR, .Size = KEYBOARD_EPSIZE, .Banks = 1, }, .PrevReportINBuffer = PrevKeyboardHIDReportBuffer, .PrevReportINBufferSize = sizeof(PrevKeyboardHIDReportBuffer), }, }; ISR(TIMER0_OVF_vect) { counter++; if(counter == next) // If the counter has reached the ticks number { PORTC |= _BV(PC7); // Turn on the led press = true; } else if(counter == 20) // Turn off the led after 300 ms { PORTC &= ~_BV(PC7); } } /** 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(); press = false; // No key is pressed at beginning next = 613; // Wait ten seconds before start the sequence GlobalInterruptEnable(); for (;;) { HID_Device_USBTask(&Keyboard_HID_Interface); USB_USBTask(); } } /** Configures the board hardware and chip peripherals for the demo's functionality. */ void SetupHardware() { /* Disable watchdog if enabled by bootloader/fuses */ MCUSR &= ~(1 << WDRF); wdt_disable(); /* Disable clock division */ clock_prescale_set(clock_div_1); /* Hardware Initialization */ USB_Init(); DDRC |= _BV(PC7); // PC7 as output TCCR0B |= _BV(CS02) | _BV(CS00); // Timer with a prescaler of 1024 TIMSK0 = _BV(TOIE0); // Timer interrupt enabled TCNT0 = 0x00; // Start timer counter at 0 } /** Event handler for the library USB Connection event. */ void EVENT_USB_Device_Connect(void) { } /** Event handler for the library USB Disconnection event. */ void EVENT_USB_Device_Disconnect(void) { } /** Event handler for the library USB Configuration Changed event. */ void EVENT_USB_Device_ConfigurationChanged(void) { bool ConfigSuccess = true; ConfigSuccess &= HID_Device_ConfigureEndpoints(&Keyboard_HID_Interface); USB_Device_EnableSOFEvents(); } /** Event handler for the library USB Control Request reception event. */ void EVENT_USB_Device_ControlRequest(void) { HID_Device_ProcessControlRequest(&Keyboard_HID_Interface); } /** Event handler for the USB device Start Of Frame event. */ void EVENT_USB_Device_StartOfFrame(void) { HID_Device_MillisecondElapsed(&Keyboard_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[in] ReportType Type of the report to create, either HID_REPORT_ITEM_In or HID_REPORT_ITEM_Feature * \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 \c true to force the sending of the report, \c 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, const uint8_t ReportType, void* ReportData, uint16_t* const ReportSize) { static int number = 0; // The number to test between 0 y 9999 static int module = 0; // Stores the module of the number divided by a power of ten static int power = 1000; // The power of ten in which the number is divided. USB_KeyboardReport_Data_t* KeyboardReport = (USB_KeyboardReport_Data_t*)ReportData; if(number < 10000 && press) // if the number is below 10000 and a key can be pressed { counter = 0; if(power == 0) // Press enter to close the invalid key screen { KeyboardReport->KeyCode[0] = HID_KEYBOARD_SC_ENTER; power = 1000; number++; // Next number in the sequence module = number; next = 92; // Wait 1.5 seconds } else { switch(module / power) // The result of the division is the number to simulate a press { case 0: KeyboardReport->KeyCode[0] = HID_KEYBOARD_SC_0_AND_CLOSING_PARENTHESIS; break; case 1: KeyboardReport->KeyCode[0] = HID_KEYBOARD_SC_1_AND_EXCLAMATION; break; case 2: KeyboardReport->KeyCode[0] = HID_KEYBOARD_SC_2_AND_AT; break; case 3: KeyboardReport->KeyCode[0] = HID_KEYBOARD_SC_3_AND_HASHMARK; break; case 4: KeyboardReport->KeyCode[0] = HID_KEYBOARD_SC_4_AND_DOLLAR; break; case 5: KeyboardReport->KeyCode[0] = HID_KEYBOARD_SC_5_AND_PERCENTAGE; break; case 6: KeyboardReport->KeyCode[0] = HID_KEYBOARD_SC_6_AND_CARET; break; case 7: KeyboardReport->KeyCode[0] = HID_KEYBOARD_SC_7_AND_AND_AMPERSAND; break; case 8: KeyboardReport->KeyCode[0] = HID_KEYBOARD_SC_8_AND_ASTERISK; break; case 9: KeyboardReport->KeyCode[0] = HID_KEYBOARD_SC_9_AND_OPENING_PARENTHESIS; break; } module %= power; // Get the module for the next operation power /= 10; // Obtain the previous power of ten if(power == 0) // If we have sended all digits { next = 92; // Wait 1.5 seconds } else { next = rand() % 61 + 30; // Next key press between 0.5 y 1.5 seconds } } press = false; // The next report will simulate a key release } *ReportSize = sizeof(USB_KeyboardReport_Data_t); return false; } /** 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] ReportType The type of report that the host has sent, either HID_REPORT_ITEM_Out or HID_REPORT_ITEM_Feature * \param[in] ReportData Pointer to a buffer where the received 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 uint8_t ReportType, const void* ReportData, const uint16_t ReportSize) { uint8_t LEDMask = LEDS_NO_LEDS; uint8_t* LEDReport = (uint8_t*)ReportData; if (*LEDReport & HID_KEYBOARD_LED_NUMLOCK) LEDMask |= LEDS_LED1; if (*LEDReport & HID_KEYBOARD_LED_CAPSLOCK) LEDMask |= LEDS_LED3; if (*LEDReport & HID_KEYBOARD_LED_SCROLLLOCK) LEDMask |= LEDS_LED4; }