Projects/Incomplete/StandaloneProgrammer/StandaloneProgrammer.c

   1 /*
   2              LUFA Library
   3      Copyright (C) Dean Camera, 2009.
   4
   5   dean [at] fourwalledcubicle [dot] com
   6       www.fourwalledcubicle.com
   7 */
   8
   9 /*
  10   Copyright 2009  Dean Camera (dean [at] fourwalledcubicle [dot] com)
  11
  12   Permission to use, copy, modify, and distribute this software
  13   and its documentation for any purpose and without fee is hereby
  14   granted, provided that the above copyright notice appear in all
  15   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 demo 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 /** Stream character fetching routine for the FAT driver so that characters from the currently open file can be
  47  *  read in sequence when applied to a stdio stream.
  48  */
  49 static int Disk_getchar(FILE* Stream)
  50 {
  51         char ReadByte;
  52         WORD ByteWasRead;
  53
  54         if (pf_read(&ReadByte, 1, &ByteWasRead) != FR_OK)
  55           return _FDEV_ERR;
  56
  57         return (ByteWasRead ? ReadByte : _FDEV_EOF);
  58 }
  59
  60 /** Task to determine if the user is wishes to start the programming sequence, and if so executes the
  61  *  required functions to program the attached target (if any) with the files loaded to the dataflash.
  62  */
  63 void Programmer_Task(void)
  64 {
  65         static bool HasAttempted = false;
  66
  67         if (Buttons_GetStatus() & BUTTONS_BUTTON1)
  68         {
  69                 if (!(HasAttempted))
  70                         HasAttempted = true;
  71                 else
  72                         return;
  73
  74                 puts("==== PROGRAMMING CYCLE STARTED ====\r\n");
  75
  76                 #if defined(USB_CAN_BE_BOTH)
  77                 printf("Using %s Drive...\r\n", (USB_CurrentMode == USB_MODE_HOST) ? "External" : "Internal");
  78                 #endif
  79
  80                 puts("Reading Configuration File...\r\n");
  81
  82                 if (!(ProgrammerConfig_ProcessConfiguration()))
  83                   goto EndOfProgCycle;
  84
  85                 EndOfProgCycle:
  86                 puts("==== PROGRAMMING CYCLE FINISHED ====\r\n");
  87         }
  88         else
  89         {
  90                 HasAttempted = false;
  91         }
  92 }
  93
  94 /** Main program entry point. This routine contains the overall program flow, including initial
  95  *  setup of all components and the main program loop.
  96  */
  97 int main(void)
  98 {
  99         SetupHardware();
 100
 101         LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
 102
 103         for (;;)
 104         {
 105                 Programmer_Task();
 106
 107                 if (USB_CurrentMode == USB_MODE_HOST)
 108                 {
 109                         #if defined(USB_CAN_BE_HOST)
 110                         DiskHost_USBTask();
 111                         #endif
 112                 }
 113                 else
 114                 {
 115                         #if defined(USB_CAN_BE_DEVICE)
 116                         DiskDevice_USBTask();
 117                         #endif
 118                 }
 119
 120                 USB_USBTask();
 121         }
 122 }
 123
 124 /** Configures the board hardware and chip peripherals for the demo's functionality. */
 125 void SetupHardware(void)
 126 {
 127         /* Disable watchdog if enabled by bootloader/fuses */
 128         MCUSR &= ~(1 << WDRF);
 129         wdt_disable();
 130
 131         /* Disable clock division */
 132         clock_prescale_set(clock_div_1);
 133
 134         /* Hardware Initialization */
 135         #if defined(USB_CAN_BE_BOTH)
 136         USB_Init(USB_MODE_UID);
 137         #else
 138         USB_Init();
 139         #endif
 140
 141         LEDs_Init();
 142         SPI_Init(SPI_SPEED_FCPU_DIV_2 | SPI_SCK_LEAD_FALLING | SPI_SAMPLE_TRAILING | SPI_MODE_MASTER);
 143         Dataflash_Init();
 144         Buttons_Init();
 145         SerialStream_Init(9600, true);
 146
 147         #if defined(USB_CAN_BE_DEVICE)
 148         /* Clear Dataflash sector protections, if enabled */
 149         DataflashManager_ResetDataflashProtections();
 150         #endif
 151 }