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Diffstat (limited to 'lib/lufa/Projects/Magstripe/Magstripe.c')
| -rw-r--r-- | lib/lufa/Projects/Magstripe/Magstripe.c | 228 |
1 files changed, 0 insertions, 228 deletions
diff --git a/lib/lufa/Projects/Magstripe/Magstripe.c b/lib/lufa/Projects/Magstripe/Magstripe.c deleted file mode 100644 index 9bb6ff01a0..0000000000 --- a/lib/lufa/Projects/Magstripe/Magstripe.c +++ /dev/null @@ -1,228 +0,0 @@ -/* - LUFA Library - Copyright (C) Dean Camera, 2017. - - dean [at] fourwalledcubicle [dot] com - www.lufa-lib.org -*/ - -/* - Copyright 2010 Denver Gingerich (denver [at] ossguy [dot] com) - Copyright 2017 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. -*/ - -/** \file - * - * Main source file for the MagStripe reader program. This file contains the main tasks of - * the project and is responsible for the initial application hardware configuration. - */ - -#include "Magstripe.h" - -/** Bit buffers to hold the read bits for each of the three magnetic card tracks before they are transmitted - * to the host as keyboard presses. - */ -static BitBuffer_t TrackDataBuffers[TOTAL_TRACKS]; - -/** Pointer to the current track buffer being sent to the host. */ -static BitBuffer_t* CurrentTrackBuffer = &TrackDataBuffers[TOTAL_TRACKS]; - -/** 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)]; - -/** 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 = INTERFACE_ID_Keyboard, - .ReportINEndpoint = - { - .Address = KEYBOARD_EPADDR, - .Size = KEYBOARD_EPSIZE, - .Banks = 1, - }, - .PrevReportINBuffer = PrevKeyboardHIDReportBuffer, - .PrevReportINBufferSize = sizeof(PrevKeyboardHIDReportBuffer), - }, - }; - - -/** 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(); - - for (uint8_t Buffer = 0; Buffer < TOTAL_TRACKS; Buffer++) - BitBuffer_Init(&TrackDataBuffers[Buffer]); - - GlobalInterruptEnable(); - - for (;;) - { - if (Magstripe_GetStatus() & MAG_CARDPRESENT) - ReadMagstripeData(); - - HID_Device_USBTask(&Keyboard_HID_Interface); - USB_USBTask(); - } -} - -/** Configures the board hardware and chip peripherals for the demo's functionality. */ -void SetupHardware(void) -{ -#if (ARCH == ARCH_AVR8) - /* Disable watchdog if enabled by bootloader/fuses */ - MCUSR &= ~(1 << WDRF); - wdt_disable(); - - /* Disable clock division */ - clock_prescale_set(clock_div_1); -#endif - - /* Hardware Initialization */ - Magstripe_Init(); - USB_Init(); -} - -/** Determines if a card has been inserted, and if so reads in each track's contents into the bit buffers - * until they are read out to the host as a series of keyboard presses. - */ -void ReadMagstripeData(void) -{ - /* Arrays to hold the buffer pointers, clock and data bit masks for the separate card tracks */ - const struct - { - uint8_t ClockMask; - uint8_t DataMask; - } TrackInfo[] = {{MAG_T1_CLOCK, MAG_T1_DATA}, - {MAG_T2_CLOCK, MAG_T2_DATA}, - {MAG_T3_CLOCK, MAG_T3_DATA}}; - - uint8_t Magstripe_Prev = 0; - uint8_t Magstripe_LCL = Magstripe_GetStatus(); - - while (Magstripe_LCL & MAG_CARDPRESENT) - { - for (uint8_t Track = 0; Track < TOTAL_TRACKS; Track++) - { - bool DataPinLevel = ((Magstripe_LCL & TrackInfo[Track].DataMask) != 0); - bool ClockPinLevel = ((Magstripe_LCL & TrackInfo[Track].ClockMask) != 0); - bool ClockLevelChanged = (((Magstripe_LCL ^ Magstripe_Prev) & TrackInfo[Track].ClockMask) != 0); - - /* Sample data on rising clock edges from the card reader */ - if (ClockPinLevel && ClockLevelChanged) - BitBuffer_StoreNextBit(&TrackDataBuffers[Track], DataPinLevel); - } - - Magstripe_Prev = Magstripe_LCL; - Magstripe_LCL = Magstripe_GetStatus(); - } - - CurrentTrackBuffer = &TrackDataBuffers[0]; -} - -/** Event handler for the library USB Configuration Changed event. */ -void EVENT_USB_Device_ConfigurationChanged(void) -{ - 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) -{ - USB_KeyboardReport_Data_t* KeyboardReport = (USB_KeyboardReport_Data_t*)ReportData; - - static bool IsKeyReleaseReport; - - /* Key reports must be interleaved with key release reports, or repeated keys will be ignored */ - IsKeyReleaseReport = !IsKeyReleaseReport; - - if ((IsKeyReleaseReport) || (CurrentTrackBuffer == &TrackDataBuffers[TOTAL_TRACKS])) - { - /* No more data to send, or key release report between key presses */ - KeyboardReport->KeyCode[0] = KEY_NONE; - } - else if (!(CurrentTrackBuffer->Elements)) - { - /* End of current track, send an enter press and change to the next track's buffer */ - KeyboardReport->KeyCode[0] = KEY_ENTER; - CurrentTrackBuffer++; - } - else - { - /* Still data in the current track; convert next bit to a 1 or 0 keypress */ - KeyboardReport->KeyCode[0] = BitBuffer_GetNextBit(CurrentTrackBuffer) ? KEY_1 : KEY_0; - } - - *ReportSize = sizeof(USB_KeyboardReport_Data_t); - return false; -} - -/** HID Class driver callback function for the processing of a received HID report from the host. - * - * \param[in] HIDInterfaceInfo Pointer to the HID interface structure for the HID interface 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 the report buffer where the received report is stored - * \param[in] ReportSize Size in bytes of the report received from the host - */ -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) -{ - // Ignore keyboard LED reports from the host, but still need to declare the callback routine -} - |