Fixed SerialStream driver not setting stdin to the created serial stream.

[pub/USBasp.git] / Projects / Magstripe / Magstripe.c

diff --git a/Projects/Magstripe/Magstripe.c b/Projects/Magstripe/Magstripe.c
index 1151735..88950cc 100644 (file)
--- a/Projects/Magstripe/Magstripe.c
+++ b/Projects/Magstripe/Magstripe.c
@@ -1,22 +1,22 @@
 /*\r
              LUFA Library\r
 /*\r
              LUFA Library\r

-     Copyright (C) Dean Camera, 2009.\r
+     Copyright (C) Dean Camera, 2010.\r

               \r
   dean [at] fourwalledcubicle [dot] com\r
       www.fourwalledcubicle.com\r
 */\r
 \r
 /*\r
               \r
   dean [at] fourwalledcubicle [dot] com\r
       www.fourwalledcubicle.com\r
 */\r
 \r
 /*\r

-  Copyright 2009  Denver Gingerich (denver [at] ossguy [dot] com)\r
-  Copyright 2009  Dean Camera (dean [at] fourwalledcubicle [dot] com)\r
-\r
-  Permission to use, copy, modify, and distribute this software\r
-  and its documentation for any purpose and without fee is hereby\r
-  granted, provided that the above copyright notice appear in all\r
-  copies and that both that the copyright notice and this\r
-  permission notice and warranty disclaimer appear in supporting\r
-  documentation, and that the name of the author not be used in\r
-  advertising or publicity pertaining to distribution of the\r
+  Copyright 2010  Denver Gingerich (denver [at] ossguy [dot] com)\r
+  Copyright 2010  Dean Camera (dean [at] fourwalledcubicle [dot] com)\r
+\r
+  Permission to use, copy, modify, distribute, and sell this \r
+  software and its documentation for any purpose is hereby granted\r
+  without fee, provided that the above copyright notice appear in \r
+  all copies and that both that the copyright notice and this\r
+  permission notice and warranty disclaimer appear in supporting \r
+  documentation, and that the name of the author not be used in \r
+  advertising or publicity pertaining to distribution of the \r

   software without specific, written prior permission.\r
 \r
   The author disclaim all warranties with regard to this\r
   software without specific, written prior permission.\r
 \r
   The author disclaim all warranties with regard to this\r


@@ -40,7 +40,13 @@
 /** Bit buffers to hold the read bits for each of the three magnetic card tracks before they are transmitted\r
  *  to the host as keyboard presses.\r
  */\r
 /** Bit buffers to hold the read bits for each of the three magnetic card tracks before they are transmitted\r
  *  to the host as keyboard presses.\r
  */\r

-BitBuffer_t TrackDataBuffers[3];\r
+BitBuffer_t TrackDataBuffers[TOTAL_TRACKS];\r
+\r
+/** Pointer to the current track buffer being sent to the host. */\r
+BitBuffer_t* CurrentTrackBuffer = &TrackDataBuffers[TOTAL_TRACKS];\r
+\r
+/** Buffer to hold the previously generated Keyboard HID report, for comparison purposes inside the HID class driver. */\r
+uint8_t PrevKeyboardHIDReportBuffer[sizeof(USB_KeyboardReport_Data_t)];\r

 \r
 /** LUFA HID Class driver interface configuration and state information. This structure is\r
  *  passed to all HID Class driver functions, so that multiple instances of the same class\r
 \r
 /** LUFA HID Class driver interface configuration and state information. This structure is\r
  *  passed to all HID Class driver functions, so that multiple instances of the same class\r


@@ -50,18 +56,15 @@ USB_ClassInfo_HID_Device_t Keyboard_HID_Interface =
        {\r
                .Config =\r
                        {\r
        {\r
                .Config =\r
                        {\r

-                               .InterfaceNumber         = 0,\r
+                               .InterfaceNumber            = 0,\r

 \r
 \r

-                               .ReportINEndpointNumber  = KEYBOARD_EPNUM,\r
-                               .ReportINEndpointSize    = KEYBOARD_EPSIZE,\r
-                               \r
-                               .ReportINBufferSize      = sizeof(USB_KeyboardReport_Data_t),\r
+                               .ReportINEndpointNumber     = KEYBOARD_EPNUM,\r
+                               .ReportINEndpointSize       = KEYBOARD_EPSIZE,\r
+                               .ReportINEndpointDoubleBank = KEYBOARD_EPSIZE,\r
+\r
+                               .PrevReportINBuffer         = PrevKeyboardHIDReportBuffer,\r
+                               .PrevReportINBufferSize     = sizeof(PrevKeyboardHIDReportBuffer),\r

                        },\r
                        },\r

-               \r
-               .State =\r
-                       {\r
-                               // Leave all state values to their defaults                             \r
-                       }\r

        };\r
 \r
 /** Main program entry point. This routine contains the overall program flow, including initial\r
        };\r
 \r
 /** Main program entry point. This routine contains the overall program flow, including initial\r


@@ -71,7 +74,7 @@ int main(void)
 {\r
        SetupHardware();\r
        \r
 {\r
        SetupHardware();\r
        \r

-       for (uint8_t Buffer = 0; Buffer < 3; Buffer++)\r
+       for (uint8_t Buffer = 0; Buffer < TOTAL_TRACKS; Buffer++)\r

          BitBuffer_Init(&TrackDataBuffers[Buffer]);\r
 \r
        for (;;)\r
          BitBuffer_Init(&TrackDataBuffers[Buffer]);\r
 \r
        for (;;)\r


@@ -97,12 +100,6 @@ void SetupHardware(void)
        /* Hardware Initialization */\r
        Magstripe_Init();\r
        USB_Init();\r
        /* Hardware Initialization */\r
        Magstripe_Init();\r
        USB_Init();\r

-\r
-       /* Millisecond timer initialization, with output compare interrupt enabled for the idle timing */\r
-       OCR0A  = ((F_CPU / 64) / 1000);\r
-       TCCR0A = (1 << WGM01);\r
-       TCCR0B = ((1 << CS01) | (1 << CS00));\r
-       TIMSK0 = (1 << OCIE0A);\r

 }\r
 \r
 /** Determines if a card has been inserted, and if so reads in each track's contents into the bit buffers\r
 }\r
 \r
 /** Determines if a card has been inserted, and if so reads in each track's contents into the bit buffers\r


@@ -124,13 +121,13 @@ void ReadMagstripeData(void)
 \r
        while (Magstripe_LCL & MAG_CARDPRESENT)\r
        {\r
 \r
        while (Magstripe_LCL & MAG_CARDPRESENT)\r
        {\r

-               for (uint8_t Track = 0; Track < 3; Track++)\r
+               for (uint8_t Track = 0; Track < TOTAL_TRACKS; Track++)\r

                {\r
                        bool DataPinLevel      = ((Magstripe_LCL & TrackInfo[Track].DataMask) != 0);\r
                        bool ClockPinLevel     = ((Magstripe_LCL & TrackInfo[Track].ClockMask) != 0);\r
                        bool ClockLevelChanged = (((Magstripe_LCL ^ Magstripe_Prev) & TrackInfo[Track].ClockMask) != 0);\r
                \r
                {\r
                        bool DataPinLevel      = ((Magstripe_LCL & TrackInfo[Track].DataMask) != 0);\r
                        bool ClockPinLevel     = ((Magstripe_LCL & TrackInfo[Track].ClockMask) != 0);\r
                        bool ClockLevelChanged = (((Magstripe_LCL ^ Magstripe_Prev) & TrackInfo[Track].ClockMask) != 0);\r
                \r

-                       /* Sample on rising clock edges */\r
+                       /* Sample data on rising clock edges from the card reader */\r

                        if (ClockPinLevel && ClockLevelChanged)\r
                          BitBuffer_StoreNextBit(&TrackDataBuffers[Track], DataPinLevel);\r
                }\r
                        if (ClockPinLevel && ClockLevelChanged)\r
                          BitBuffer_StoreNextBit(&TrackDataBuffers[Track], DataPinLevel);\r
                }\r


@@ -138,75 +135,69 @@ void ReadMagstripeData(void)
                Magstripe_Prev = Magstripe_LCL;\r
                Magstripe_LCL  = Magstripe_GetStatus();\r
        }\r
                Magstripe_Prev = Magstripe_LCL;\r
                Magstripe_LCL  = Magstripe_GetStatus();\r
        }\r

+       \r
+       CurrentTrackBuffer = &TrackDataBuffers[0];\r

 }\r
 \r
 /** Event handler for the library USB Configuration Changed event. */\r
 }\r
 \r
 /** Event handler for the library USB Configuration Changed event. */\r

-void EVENT_USB_ConfigurationChanged(void)\r
+void EVENT_USB_Device_ConfigurationChanged(void)\r

 {\r
        HID_Device_ConfigureEndpoints(&Keyboard_HID_Interface);\r
 {\r
        HID_Device_ConfigureEndpoints(&Keyboard_HID_Interface);\r

+       \r
+       USB_Device_EnableSOFEvents();\r

 }\r
 \r
 /** Event handler for the library USB Unhandled Control Packet event. */\r
 }\r
 \r
 /** Event handler for the library USB Unhandled Control Packet event. */\r

-void EVENT_USB_UnhandledControlPacket(void)\r
+void EVENT_USB_Device_UnhandledControlRequest(void)\r

 {\r
 {\r

-       HID_Device_ProcessControlPacket(&Keyboard_HID_Interface);\r
+       HID_Device_ProcessControlRequest(&Keyboard_HID_Interface);\r

 }\r
 \r
 }\r
 \r

-/** Timer 0 CTC ISR, firing once each millisecond to keep track of elapsed idle time in the HID interface. */\r
-ISR(TIMER0_COMPA_vect, ISR_BLOCK)\r
+/** Event handler for the USB device Start Of Frame event. */\r
+void EVENT_USB_Device_StartOfFrame(void)\r

 {\r
 {\r

-       if (Keyboard_HID_Interface.State.IdleMSRemaining)\r
-         Keyboard_HID_Interface.State.IdleMSRemaining--;\r
+       HID_Device_MillisecondElapsed(&Keyboard_HID_Interface);\r

 }\r
 \r
 }\r
 \r

-/** HID Class driver callback function for the creation of a HID report for the host.\r
+/** HID class driver callback function for the creation of HID reports to the host.\r

  *\r
  *\r

- *  \param[in] HIDInterfaceInfo  Pointer to the HID interface structure for the HID interface being referenced\r
- *  \param[in,out] ReportID      Report ID requested by the host if non-zero, otherwise callback should set to the generated report ID\r
- *  \param[out] ReportData       Pointer to the preallocated report buffer where the created report should be stored\r
+ *  \param[in] HIDInterfaceInfo  Pointer to the HID class interface configuration structure being referenced\r
+ *  \param[in,out] ReportID  Report ID requested by the host if non-zero, otherwise callback should set to the generated report ID\r
+ *  \param[in] ReportType  Type of the report to create, either REPORT_ITEM_TYPE_In or REPORT_ITEM_TYPE_Feature\r
+ *  \param[out] ReportData  Pointer to a buffer where the created report should be stored\r
+ *  \param[out] ReportSize  Number of bytes written in the report (or zero if no report is to be sent\r

  *\r
  *\r

- *  \return Number of bytes in the created report\r
+ *  \return Boolean true to force the sending of the report, false to let the library determine if it needs to be sent\r

  */\r
  */\r

-uint16_t CALLBACK_HID_Device_CreateHIDReport(USB_ClassInfo_HID_Device_t* const HIDInterfaceInfo, uint8_t* const ReportID, void* ReportData)\r
+bool CALLBACK_HID_Device_CreateHIDReport(USB_ClassInfo_HID_Device_t* const HIDInterfaceInfo, uint8_t* const ReportID,\r
+                                         const uint8_t ReportType, void* ReportData, uint16_t* ReportSize)\r

 {\r
 {\r

+       USB_KeyboardReport_Data_t* KeyboardReport = (USB_KeyboardReport_Data_t*)ReportData;\r
+\r

        static bool IsKeyReleaseReport;\r
        static bool IsKeyReleaseReport;\r

-       static bool IsNewlineReport;\r

 \r
 \r

-       USB_KeyboardReport_Data_t* KeyboardReport = (USB_KeyboardReport_Data_t*)ReportData;\r
-       BitBuffer_t*               Buffer         = NULL;\r
-       \r

        /* Key reports must be interleaved with key release reports, or repeated keys will be ignored */\r
        /* Key reports must be interleaved with key release reports, or repeated keys will be ignored */\r

-       IsKeyReleaseReport = !IsKeyReleaseReport;       \r
+       IsKeyReleaseReport = !IsKeyReleaseReport;\r

 \r
 \r

-       if (IsKeyReleaseReport)\r
+       if ((IsKeyReleaseReport) || (CurrentTrackBuffer == &TrackDataBuffers[TOTAL_TRACKS]))\r

        {\r
        {\r

-               KeyboardReport->KeyCode = KEY_NONE;\r
+               /* No more data to send, or key release report between key presses */\r
+               KeyboardReport->KeyCode[0] = KEY_NONE;\r

        }\r
        }\r

-       else if (IsNewlineReport)\r
+       else if (!(CurrentTrackBuffer->Elements))\r

        {\r
        {\r

-               IsNewlineReport = false;\r
-               KeyboardReport->KeyCode = KEY_ENTER;\r
+               /* End of current track, send an enter press and change to the next track's buffer */\r
+               KeyboardReport->KeyCode[0] = KEY_ENTER;\r
+               CurrentTrackBuffer++;\r

        }\r
        else\r
        {\r
        }\r
        else\r
        {\r

-               /* Read out tracks in ascending order - when each track buffer is empty, progress to next buffer */\r
-               if (TrackDataBuffers[0].Elements)\r
-                 Buffer = &TrackDataBuffers[0];\r
-               else if (TrackDataBuffers[1].Elements)\r
-                 Buffer = &TrackDataBuffers[1];                        \r
-               else if (TrackDataBuffers[2].Elements)\r
-                 Buffer = &TrackDataBuffers[2];\r
-               else\r
-                 return 0;\r
-\r
-               KeyboardReport->KeyCode = BitBuffer_GetNextBit(Buffer) ? KEY_1 : KEY_0;\r
-               \r
-               /* If current track buffer now empty, next report must be a newline to seperate track data */\r
-               if (!(Buffer->Elements))\r
-                 IsNewlineReport = true;\r
+               /* Still data in the current track; convert next bit to a 1 or 0 keypress */\r
+               KeyboardReport->KeyCode[0] = BitBuffer_GetNextBit(CurrentTrackBuffer) ? KEY_1 : KEY_0;\r

        }\r
        \r
        }\r
        \r

-       return sizeof(USB_KeyboardReport_Data_t);\r
+       *ReportSize = sizeof(USB_KeyboardReport_Data_t);\r
+       return false;\r

 }\r
 \r
 /** HID Class driver callback function for the processing of a received HID report from the host.\r
 }\r
 \r
 /** HID Class driver callback function for the processing of a received HID report from the host.\r