Projects/Incomplete/StandaloneProgrammer/StandaloneProgrammer.c

   1 /*
   2              LUFA Library
   3      Copyright (C) Dean Camera, 2011.
   4
   5   dean [at] fourwalledcubicle [dot] com
   6            www.lufa-lib.org
   7 */
   8
   9 /*
  10   Copyright 2011  Dean Camera (dean [at] fourwalledcubicle [dot] com)
  11
  12   Permission to use, copy, modify, distribute, and sell this
  13   software and its documentation for any purpose is hereby granted
  14   without fee, provided that the above copyright notice appear in
  15   all copies and that both that the copyright notice and this
  16   permission notice and warranty disclaimer appear in supporting
  17   documentation, and that the name of the author not be used in
  18   advertising or publicity pertaining to distribution of the
  19   software without specific, written prior permission.
  20
  21   The author disclaim all warranties with regard to this
  22   software, including all implied warranties of merchantability
  23   and fitness.  In no event shall the author be liable for any
  24   special, indirect or consequential damages or any damages
  25   whatsoever resulting from loss of use, data or profits, whether
  26   in an action of contract, negligence or other tortious action,
  27   arising out of or in connection with the use or performance of
  28   this software.
  29 */
  30
  31 /** \file
  32  *
  33  *  Main source file for the Standalone Programmer project. This file contains the main tasks of
  34  *  the project and is responsible for the initial application hardware configuration.
  35  */
  36
  37 #define  INCLUDE_FROM_STANDALONEPROG_C
  38 #include "StandaloneProgrammer.h"
  39
  40 /** Standard file stream for the currently open file on the disk. */
  41 FILE DiskStream = FDEV_SETUP_STREAM(NULL, Disk_getchar, _FDEV_SETUP_READ);
  42
  43 /** Petite FAT Fs structure to hold the internal state of the FAT driver for the Dataflash contents. */
  44 FATFS DiskFATState;
  45
  46
  47 /** Stream character fetching routine for the FAT driver so that characters from the currently open file can be
  48  *  read in sequence when applied to a stdio stream.
  49  */
  50 static int Disk_getchar(FILE* Stream)
  51 {
  52         char ReadByte;
  53         WORD ByteWasRead;
  54
  55         if (pf_read(&ReadByte, 1, &ByteWasRead) != FR_OK)
  56           return _FDEV_ERR;
  57
  58         return (ByteWasRead ? ReadByte : _FDEV_EOF);
  59 }
  60
  61 #if defined(USB_CAN_BE_BOTH)
  62 /** Event to handle mode changes in the library, to clear the FAT library's drive state structure when transitioning
  63  *  between modes. This ensures that the library always works with current disk data.
  64  */
  65 void EVENT_USB_UIDChange(void)
  66 {
  67         pf_mount(&DiskFATState);
  68 }
  69 #endif
  70
  71 /** Task to determine if the user is wishes to start the programming sequence, and if so executes the
  72  *  required functions to program the attached target (if any) with the files loaded to the Dataflash.
  73  */
  74 void Programmer_Task(void)
  75 {
  76         static bool HasAttempted = false;
  77
  78         if (Buttons_GetStatus() & BUTTONS_BUTTON1)
  79         {
  80                 if (!(HasAttempted))
  81                         HasAttempted = true;
  82                 else
  83                         return;
  84
  85                 puts("==== PROGRAMMING CYCLE STARTED ====\r\n");
  86
  87                 #if defined(USB_CAN_BE_BOTH)
  88                 printf("Using %s Drive...\r\n", (USB_CurrentMode == USB_MODE_Host) ? "External" : "Internal");
  89                 #endif
  90
  91                 puts("Reading Configuration File...\r\n");
  92                 if (!(ProgrammerConfig_ProcessConfiguration()))
  93                   goto EndOfProgCycle;
  94
  95                 EndOfProgCycle:
  96                 puts("==== PROGRAMMING CYCLE FINISHED ====\r\n");
  97         }
  98         else
  99         {
 100                 HasAttempted = false;
 101         }
 102 }
 103
 104 /** Main program entry point. This routine contains the overall program flow, including initial
 105  *  setup of all components and the main program loop.
 106  */
 107 int main(void)
 108 {
 109         SetupHardware();
 110
 111         LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
 112         sei();
 113
 114         for (;;)
 115         {
 116                 Programmer_Task();
 117
 118                 if (USB_CurrentMode == USB_MODE_Host)
 119                 {
 120                         #if defined(USB_CAN_BE_HOST)
 121                         DiskHost_USBTask();
 122                         #endif
 123                 }
 124                 else
 125                 {
 126                         #if defined(USB_CAN_BE_DEVICE)
 127                         DiskDevice_USBTask();
 128                         #endif
 129                 }
 130
 131                 USB_USBTask();
 132         }
 133 }
 134
 135 /** Configures the board hardware and chip peripherals for the demo's functionality. */
 136 void SetupHardware(void)
 137 {
 138         /* Disable watchdog if enabled by bootloader/fuses */
 139         MCUSR &= ~(1 << WDRF);
 140         wdt_disable();
 141
 142         /* Disable clock division */
 143         clock_prescale_set(clock_div_1);
 144
 145         /* Hardware Initialization */
 146         #if defined(USB_CAN_BE_BOTH)
 147         USB_Init(USB_MODE_UID);
 148         #else
 149         USB_Init();
 150         #endif
 151
 152         LEDs_Init();
 153         SPI_Init(SPI_SPEED_FCPU_DIV_2 | SPI_SCK_LEAD_FALLING | SPI_SAMPLE_TRAILING | SPI_MODE_MASTER);
 154         Dataflash_Init();
 155         Buttons_Init();
 156         Serial_Init(9600, true);
 157
 158         /* Create a stdio stream for the serial port for stdin and stdout */
 159         Serial_CreateStream(NULL);
 160
 161         #if defined(USB_CAN_BE_DEVICE)
 162         /* Clear Dataflash sector protections, if enabled */
 163         DataflashManager_ResetDataflashProtections();
 164         #endif
 165 }
 166