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 /** LUFA Mass Storage Class driver interface configuration and state information. This structure is
  41  *  passed to all Mass Storage Class driver functions, so that multiple instances of the same class
  42  *  within a device can be differentiated from one another.
  43  */
  44 USB_ClassInfo_MS_Device_t Disk_MS_Interface =
  45         {
  46                 .Config =
  47                         {
  48                                 .InterfaceNumber           = 0,
  49
  50                                 .DataINEndpointNumber      = MASS_STORAGE_IN_EPNUM,
  51                                 .DataINEndpointSize        = MASS_STORAGE_IO_EPSIZE,
  52                                 .DataINEndpointDoubleBank  = false,
  53
  54                                 .DataOUTEndpointNumber     = MASS_STORAGE_OUT_EPNUM,
  55                                 .DataOUTEndpointSize       = MASS_STORAGE_IO_EPSIZE,
  56                                 .DataOUTEndpointDoubleBank = false,
  57
  58                                 .TotalLUNs                 = 1,
  59                         },
  60         };
  61
  62 /** LUFA CDC Class driver interface configuration and state information. This structure is
  63  *  passed to all CDC Class driver functions, so that multiple instances of the same class
  64  *  within a device can be differentiated from one another.
  65  */
  66 USB_ClassInfo_CDC_Device_t VirtualSerial_CDC_Interface =
  67         {
  68                 .Config =
  69                         {
  70                                 .ControlInterfaceNumber         = 0,
  71
  72                                 .DataINEndpointNumber           = CDC_TX_EPNUM,
  73                                 .DataINEndpointSize             = CDC_TXRX_EPSIZE,
  74                                 .DataINEndpointDoubleBank       = false,
  75
  76                                 .DataOUTEndpointNumber          = CDC_RX_EPNUM,
  77                                 .DataOUTEndpointSize            = CDC_TXRX_EPSIZE,
  78                                 .DataOUTEndpointDoubleBank      = false,
  79
  80                                 .NotificationEndpointNumber     = CDC_NOTIFICATION_EPNUM,
  81                                 .NotificationEndpointSize       = CDC_NOTIFICATION_EPSIZE,
  82                                 .NotificationEndpointDoubleBank = false,
  83                         },
  84         };
  85
  86 /** Standard file stream for the CDC interface when set up, so that the virtual CDC COM port can be
  87  *  used like any regular character stream in the C APIs
  88  */
  89 FILE USBSerialStream;
  90
  91 /** Standard file stream for the currently open file on the dataflash disk. */
  92 FILE DataflashStream = FDEV_SETUP_STREAM(NULL, Dataflash_getchar, _FDEV_SETUP_READ);
  93
  94 /** Petite FAT Fs structure to hold the internal state of the FAT driver for the dataflash contents. */
  95 FATFS DataflashData;
  96
  97
  98 /** Stream character fetching routine for the FAT driver so that characters from the currently open file can be
  99  *  read in sequence when applied to a stdio stream.
 100  */
 101 static int Dataflash_getchar(FILE* Stream)
 102 {
 103         char ReadByte;
 104         WORD ByteWasRead;
 105
 106         if (pf_read(&ReadByte, 1, &ByteWasRead) != FR_OK)
 107           return _FDEV_ERR;
 108
 109         return (ByteWasRead ? ReadByte : _FDEV_EOF);
 110 }
 111
 112 /** Task to determine if the user is wishes to start the programming sequence, and if so executes the
 113  *  required functions to program the attached target (if any) with the files loaded to the dataflash.
 114  */
 115 void Programmer_Task(void)
 116 {
 117         static bool HasAttempted = false;
 118
 119         if (Buttons_GetStatus() & BUTTONS_BUTTON1)
 120         {
 121                 if (!(HasAttempted))
 122                         HasAttempted = true;
 123                 else
 124                         return;
 125
 126                 fputs("==== PROGRAMMING CYCLE STARTED ====\r\n", &USBSerialStream);
 127
 128                 fputs("Reading Configuration File...\r\n", &USBSerialStream);
 129
 130                 if (!(ProgrammerConfig_ProcessConfiguration()))
 131                   goto EndOfProgCycle;
 132
 133                 EndOfProgCycle:
 134                 fputs("==== PROGRAMMING CYCLE FINISHED ====\r\n", &USBSerialStream);
 135         }
 136         else
 137         {
 138                 HasAttempted = false;
 139         }
 140 }
 141
 142 /** Main program entry point. This routine contains the overall program flow, including initial
 143  *  setup of all components and the main program loop.
 144  */
 145 int main(void)
 146 {
 147         SetupHardware();
 148
 149         /* Create a regular character stream for the interface so that it can be used with the stdio.h functions */
 150         CDC_Device_CreateStream(&VirtualSerial_CDC_Interface, &USBSerialStream);
 151
 152         LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
 153
 154         for (;;)
 155         {
 156                 Programmer_Task();
 157
 158                 /* Must throw away unused bytes from the host, or it will lock up while waiting for the device */
 159                 while (CDC_Device_BytesReceived(&VirtualSerial_CDC_Interface))
 160                   CDC_Device_ReceiveByte(&VirtualSerial_CDC_Interface);
 161
 162                 CDC_Device_USBTask(&VirtualSerial_CDC_Interface);
 163                 MS_Device_USBTask(&Disk_MS_Interface);
 164                 USB_USBTask();
 165         }
 166 }
 167
 168 /** Configures the board hardware and chip peripherals for the demo's functionality. */
 169 void SetupHardware(void)
 170 {
 171         /* Disable watchdog if enabled by bootloader/fuses */
 172         MCUSR &= ~(1 << WDRF);
 173         wdt_disable();
 174
 175         /* Disable clock division */
 176         clock_prescale_set(clock_div_1);
 177
 178         /* Hardware Initialization */
 179         LEDs_Init();
 180         SPI_Init(SPI_SPEED_FCPU_DIV_2 | SPI_SCK_LEAD_FALLING | SPI_SAMPLE_TRAILING | SPI_MODE_MASTER);
 181         Dataflash_Init();
 182         USB_Init();
 183         Buttons_Init();
 184         pf_mount(&DataflashData);
 185
 186         /* Clear Dataflash sector protections, if enabled */
 187         DataflashManager_ResetDataflashProtections();
 188 }
 189
 190 /** Event handler for the library USB Connection event. */
 191 void EVENT_USB_Device_Connect(void)
 192 {
 193         LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
 194 }
 195
 196 /** Event handler for the library USB Disconnection event. */
 197 void EVENT_USB_Device_Disconnect(void)
 198 {
 199         LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
 200 }
 201
 202 /** Event handler for the library USB Configuration Changed event. */
 203 void EVENT_USB_Device_ConfigurationChanged(void)
 204 {
 205         LEDs_SetAllLEDs(LEDMASK_USB_READY);
 206
 207         if (!(MS_Device_ConfigureEndpoints(&Disk_MS_Interface)))
 208           LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 209
 210         if (!(CDC_Device_ConfigureEndpoints(&VirtualSerial_CDC_Interface)))
 211           LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 212 }
 213
 214 /** Event handler for the library USB Unhandled Control Request event. */
 215 void EVENT_USB_Device_UnhandledControlRequest(void)
 216 {
 217         MS_Device_ProcessControlRequest(&Disk_MS_Interface);
 218         CDC_Device_ProcessControlRequest(&VirtualSerial_CDC_Interface);
 219 }
 220
 221 /** Mass Storage class driver callback function the reception of SCSI commands from the host, which must be processed.
 222  *
 223  *  \param[in] MSInterfaceInfo  Pointer to the Mass Storage class interface configuration structure being referenced
 224  */
 225 bool CALLBACK_MS_Device_SCSICommandReceived(USB_ClassInfo_MS_Device_t* MSInterfaceInfo)
 226 {
 227         bool CommandSuccess;
 228
 229         LEDs_SetAllLEDs(LEDMASK_USB_BUSY);
 230         CommandSuccess = SCSI_DecodeSCSICommand(MSInterfaceInfo);
 231         LEDs_SetAllLEDs(LEDMASK_USB_READY);
 232
 233         return CommandSuccess;
 234 }