Projects/Incomplete/StandaloneProgrammer/StandaloneProgrammer.c

   1 /*
   2              LUFA Library
   3      Copyright (C) Dean Camera, 2010.
   4
   5   dean [at] fourwalledcubicle [dot] com
   6       www.fourwalledcubicle.com
   7 */
   8
   9 /*
  10   Copyright 2010  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 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 #if defined(USB_CAN_BE_BOTH)
  61 /** Event to handle mode changes in the library, to clear the FAT library's drive state structure when transitioning
  62  *  between modes. This ensures that the library always works with current disk data.
  63  */
  64 void EVENT_USB_UIDChange(void)
  65 {
  66         pf_mount(&DiskFATState);
  67 }
  68 #endif
  69
  70 /** Task to determine if the user is wishes to start the programming sequence, and if so executes the
  71  *  required functions to program the attached target (if any) with the files loaded to the dataflash.
  72  */
  73 void Programmer_Task(void)
  74 {
  75         static bool HasAttempted = false;
  76
  77         if (Buttons_GetStatus() & BUTTONS_BUTTON1)
  78         {
  79                 if (!(HasAttempted))
  80                         HasAttempted = true;
  81                 else
  82                         return;
  83
  84                 puts("==== PROGRAMMING CYCLE STARTED ====\r\n");
  85
  86                 #if defined(USB_CAN_BE_BOTH)
  87                 printf("Using %s Drive...\r\n", (USB_CurrentMode == USB_MODE_HOST) ? "External" : "Internal");
  88                 #endif
  89
  90                 puts("Reading Configuration File...\r\n");
  91                 if (!(ProgrammerConfig_ProcessConfiguration()))
  92                   goto EndOfProgCycle;
  93
  94                 EndOfProgCycle:
  95                 puts("==== PROGRAMMING CYCLE FINISHED ====\r\n");
  96         }
  97         else
  98         {
  99                 HasAttempted = false;
 100         }
 101 }
 102
 103 /** Main program entry point. This routine contains the overall program flow, including initial
 104  *  setup of all components and the main program loop.
 105  */
 106 int main(void)
 107 {
 108         SetupHardware();
 109
 110         LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
 111         sei();
 112
 113         for (;;)
 114         {
 115                 Programmer_Task();
 116
 117                 if (USB_CurrentMode == USB_MODE_HOST)
 118                 {
 119                         #if defined(USB_CAN_BE_HOST)
 120                         DiskHost_USBTask();
 121                         #endif
 122                 }
 123                 else
 124                 {
 125                         #if defined(USB_CAN_BE_DEVICE)
 126                         DiskDevice_USBTask();
 127                         #endif
 128                 }
 129
 130                 USB_USBTask();
 131         }
 132 }
 133
 134 /** Configures the board hardware and chip peripherals for the demo's functionality. */
 135 void SetupHardware(void)
 136 {
 137         /* Disable watchdog if enabled by bootloader/fuses */
 138         MCUSR &= ~(1 << WDRF);
 139         wdt_disable();
 140
 141         /* Disable clock division */
 142         clock_prescale_set(clock_div_1);
 143
 144         /* Hardware Initialization */
 145         #if defined(USB_CAN_BE_BOTH)
 146         USB_Init(USB_MODE_UID);
 147         #else
 148         USB_Init();
 149         #endif
 150
 151         LEDs_Init();
 152         SPI_Init(SPI_SPEED_FCPU_DIV_2 | SPI_SCK_LEAD_FALLING | SPI_SAMPLE_TRAILING | SPI_MODE_MASTER);
 153         Dataflash_Init();
 154         Buttons_Init();
 155         SerialStream_Init(9600, true);
 156
 157         #if defined(USB_CAN_BE_DEVICE)
 158         /* Clear Dataflash sector protections, if enabled */
 159         DataflashManager_ResetDataflashProtections();
 160         #endif
 161 }