Demos/Host/ClassDriver/MassStorageHost/MassStorageHost.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 MassStorageHost demo. This file contains the main tasks of
  34  *  the demo and is responsible for the initial application hardware configuration.
  35  */
  36
  37 #include "MassStorageHost.h"
  38
  39 /** LUFA Mass Storage Class driver interface configuration and state information. This structure is
  40  *  passed to all Mass Storage Class driver functions, so that multiple instances of the same class
  41  *  within a device can be differentiated from one another.
  42  */
  43 USB_ClassInfo_MS_Host_t FlashDisk_MS_Interface =
  44         {
  45                 .Config =
  46                         {
  47                                 .DataINPipeNumber       = 1,
  48                                 .DataOUTPipeNumber      = 2,
  49                         },
  50         };
  51
  52
  53 /** Main program entry point. This routine configures the hardware required by the application, then
  54  *  starts the scheduler to run the application tasks.
  55  */
  56 int main(void)
  57 {
  58         SetupHardware();
  59
  60         puts_P(PSTR(ESC_FG_CYAN "Mass Storage Host Demo running.\r\n" ESC_FG_WHITE));
  61
  62         LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
  63
  64         for (;;)
  65         {
  66                 switch (USB_HostState)
  67                 {
  68                         case HOST_STATE_Addressed:
  69                                 LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
  70
  71                                 uint16_t ConfigDescriptorSize;
  72                                 uint8_t  ConfigDescriptorData[512];
  73
  74                                 if ((USB_GetDeviceConfigDescriptor(1, &ConfigDescriptorSize, NULL) != HOST_SENDCONTROL_Successful) ||
  75                                     (ConfigDescriptorSize > sizeof(ConfigDescriptorData)) ||
  76                                         (USB_GetDeviceConfigDescriptor(1, &ConfigDescriptorSize, ConfigDescriptorData)))
  77                                 {
  78                                         printf("Error Retrieving Configuration Descriptor.\r\n");
  79                                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
  80                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
  81                                         break;
  82                                 }
  83
  84                                 if (MS_Host_ConfigurePipes(&FlashDisk_MS_Interface,
  85                                                             ConfigDescriptorSize, ConfigDescriptorData) != MS_ENUMERROR_NoError)
  86                                 {
  87                                         printf("Attached Device Not a Valid Mouse.\r\n");
  88                                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
  89                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
  90                                         break;
  91                                 }
  92
  93                                 if (USB_Host_SetDeviceConfiguration(1) != HOST_SENDCONTROL_Successful)
  94                                 {
  95                                         printf("Error Setting Device Configuration.\r\n");
  96                                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
  97                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
  98                                         break;
  99                                 }
 100
 101                                 printf("Mouse Enumerated.\r\n");
 102                                 USB_HostState = HOST_STATE_Configured;
 103                                 break;
 104                         case HOST_STATE_Configured:
 105                                 LEDs_SetAllLEDs(LEDMASK_USB_BUSY);
 106
 107                                 uint8_t MaxLUNIndex;
 108                                 if (MS_Host_GetMaxLUN(&FlashDisk_MS_Interface, &MaxLUNIndex))
 109                                 {
 110                                         printf("Error retrieving max LUN index.\r\n");
 111                                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 112                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 113                                         break;
 114                                 }
 115
 116                                 if (MS_Host_ResetMSInterface(&FlashDisk_MS_Interface))
 117                                 {
 118                                         printf("Error resetting Mass Storage interface.\r\n");
 119                                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 120                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 121                                         break;
 122                                 }
 123
 124                                 SCSI_Request_Sense_Response_t SenseData;
 125                                 if (MS_Host_RequestSense(&FlashDisk_MS_Interface, 0, &SenseData) != 0)
 126                                 {
 127                                         printf("Error retrieving device sense.\r\n");
 128                                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 129                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 130                                         break;
 131                                 }
 132
 133                                 if (MS_Host_PreventAllowMediumRemoval(&FlashDisk_MS_Interface, 0, true))
 134                                 {
 135                                         printf("Error setting Prevent Device Removal bit.\r\n");
 136                                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 137                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 138                                         break;
 139                                 }
 140
 141                                 SCSI_Inquiry_Response_t InquiryData;
 142                                 if (MS_Host_GetInquiryData(&FlashDisk_MS_Interface, 0, &InquiryData))
 143                                 {
 144                                         printf("Error retreiving device Inquiry data.\r\n");
 145                                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 146                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 147                                         break;
 148                                 }
 149
 150                                 printf("Vendor \"%.8s\", Product \"%.16s\"\r\n", InquiryData.VendorID, InquiryData.ProductID);
 151
 152                                 printf("Waiting until ready...\r\n");
 153                                 bool DeviceReady;
 154
 155                                 do
 156                                 {
 157                                         if (MS_Host_TestUnitReady(&FlashDisk_MS_Interface, 0, &DeviceReady))
 158                                         {
 159                                                 printf("Error waiting for device to be ready.\r\n");
 160                                                 LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 161                                                 USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 162                                                 break;
 163                                         }
 164                                 }
 165                                 while (!(DeviceReady));
 166
 167                                 printf("Retrieving Capacity... ");
 168
 169                                 SCSI_Capacity_t DiskCapacity;
 170                                 if (MS_Host_ReadDeviceCapacity(&FlashDisk_MS_Interface, 0, &DiskCapacity))
 171                                 {
 172                                         printf("Error retrieving device capacity.\r\n");
 173                                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 174                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 175                                         break;
 176                                 }
 177
 178                                 printf("%lu blocks of %lu bytes.\r\n", DiskCapacity.Blocks, DiskCapacity.BlockSize);
 179
 180                                 uint8_t BlockBuffer[DiskCapacity.BlockSize];
 181
 182                                 if (MS_Host_ReadDeviceBlocks(&FlashDisk_MS_Interface, 0, 0x00000000, 1, DiskCapacity.BlockSize, BlockBuffer))
 183                                 {
 184                                         printf("Error reading device block.\r\n");
 185                                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 186                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 187                                         break;
 188                                 }
 189
 190                                 printf("\r\nContents of first block:\r\n");
 191
 192                                 for (uint16_t Chunk = 0; Chunk < (DiskCapacity.BlockSize >> 4); Chunk++)
 193                                 {
 194                                         uint8_t* ChunkPtr = &BlockBuffer[Chunk << 4];
 195
 196                                         /* Print out the 16 bytes of the chunk in HEX format */
 197                                         for (uint8_t ByteOffset = 0; ByteOffset < (1 << 4); ByteOffset++)
 198                                         {
 199                                                 char CurrByte = *(ChunkPtr + ByteOffset);
 200                                                 printf_P(PSTR("%.2X "), CurrByte);
 201                                         }
 202
 203                                         printf("    ");
 204
 205                                         /* Print out the 16 bytes of the chunk in ASCII format */
 206                                         for (uint8_t ByteOffset = 0; ByteOffset < (1 << 4); ByteOffset++)
 207                                         {
 208                                                 char CurrByte = *(ChunkPtr + ByteOffset);
 209                                                 putchar(isprint(CurrByte) ? CurrByte : '.');
 210                                         }
 211
 212                                         printf("\r\n");
 213                                 }
 214
 215                                 LEDs_SetAllLEDs(LEDMASK_USB_READY);
 216                                 USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 217                                 break;
 218                 }
 219
 220                 MS_Host_USBTask(&FlashDisk_MS_Interface);
 221                 USB_USBTask();
 222         }
 223 }
 224
 225 /** Configures the board hardware and chip peripherals for the demo's functionality. */
 226 void SetupHardware(void)
 227 {
 228         /* Disable watchdog if enabled by bootloader/fuses */
 229         MCUSR &= ~(1 << WDRF);
 230         wdt_disable();
 231
 232         /* Disable clock division */
 233         clock_prescale_set(clock_div_1);
 234
 235         /* Hardware Initialization */
 236         SerialStream_Init(9600, false);
 237         LEDs_Init();
 238         USB_Init();
 239 }
 240
 241 /** Event handler for the USB_DeviceAttached event. This indicates that a device has been attached to the host, and
 242  *  starts the library USB task to begin the enumeration and USB management process.
 243  */
 244 void EVENT_USB_Host_DeviceAttached(void)
 245 {
 246         puts_P(PSTR("Device Attached.\r\n"));
 247         LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
 248 }
 249
 250 /** Event handler for the USB_DeviceUnattached event. This indicates that a device has been removed from the host, and
 251  *  stops the library USB task management process.
 252  */
 253 void EVENT_USB_Host_DeviceUnattached(void)
 254 {
 255         puts_P(PSTR("\r\nDevice Unattached.\r\n"));
 256         LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
 257 }
 258
 259 /** Event handler for the USB_DeviceEnumerationComplete event. This indicates that a device has been successfully
 260  *  enumerated by the host and is now ready to be used by the application.
 261  */
 262 void EVENT_USB_Host_DeviceEnumerationComplete(void)
 263 {
 264         LEDs_SetAllLEDs(LEDMASK_USB_READY);
 265 }
 266
 267 /** Event handler for the USB_HostError event. This indicates that a hardware error occurred while in host mode. */
 268 void EVENT_USB_Host_HostError(const uint8_t ErrorCode)
 269 {
 270         USB_ShutDown();
 271
 272         printf_P(PSTR(ESC_FG_RED "Host Mode Error\r\n"
 273                                  " -- Error Code %d\r\n" ESC_FG_WHITE), ErrorCode);
 274
 275         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 276         for(;;);
 277 }
 278
 279 /** Event handler for the USB_DeviceEnumerationFailed event. This indicates that a problem occurred while
 280  *  enumerating an attached USB device.
 281  */
 282 void EVENT_USB_Host_DeviceEnumerationFailed(const uint8_t ErrorCode, const uint8_t SubErrorCode)
 283 {
 284         printf_P(PSTR(ESC_FG_RED "Dev Enum Error\r\n"
 285                                  " -- Error Code %d\r\n"
 286                                  " -- Sub Error Code %d\r\n"
 287                                  " -- In State %d\r\n" ESC_FG_WHITE), ErrorCode, SubErrorCode, USB_HostState);
 288
 289         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 290 }