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 Mass Storage Device.\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("Mass Storage Device 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                                 printf("Total LUNs: %d - Using first LUN in device.\r\n", (MaxLUNIndex + 1));
 117
 118                                 if (MS_Host_ResetMSInterface(&FlashDisk_MS_Interface))
 119                                 {
 120                                         printf("Error resetting Mass Storage interface.\r\n");
 121                                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 122                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 123                                         break;
 124                                 }
 125
 126                                 SCSI_Request_Sense_Response_t SenseData;
 127                                 if (MS_Host_RequestSense(&FlashDisk_MS_Interface, 0, &SenseData) != 0)
 128                                 {
 129                                         printf("Error retrieving device sense.\r\n");
 130                                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 131                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 132                                         break;
 133                                 }
 134
 135                                 if (MS_Host_PreventAllowMediumRemoval(&FlashDisk_MS_Interface, 0, true))
 136                                 {
 137                                         printf("Error setting Prevent Device Removal bit.\r\n");
 138                                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 139                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 140                                         break;
 141                                 }
 142
 143                                 SCSI_Inquiry_Response_t InquiryData;
 144                                 if (MS_Host_GetInquiryData(&FlashDisk_MS_Interface, 0, &InquiryData))
 145                                 {
 146                                         printf("Error retreiving device Inquiry data.\r\n");
 147                                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 148                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 149                                         break;
 150                                 }
 151
 152                                 printf("Vendor \"%.8s\", Product \"%.16s\"\r\n", InquiryData.VendorID, InquiryData.ProductID);
 153
 154                                 printf("Waiting until ready...\r\n");
 155
 156                                 for (;;)
 157                                 {
 158                                         uint8_t ErrorCode = MS_Host_TestUnitReady(&FlashDisk_MS_Interface, 0);
 159
 160                                         if (!(ErrorCode))
 161                                           break;
 162
 163                                         /* Check if an error other than a logical command error (device busy) received */
 164                                         if (ErrorCode != MS_ERROR_LOGICAL_CMD_FAILED)
 165                                         {
 166                                                 printf("Error waiting for device to be ready.\r\n");
 167                                                 LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 168                                                 USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 169                                                 break;
 170                                         }
 171                                 }
 172
 173                                 printf("Retrieving Capacity... ");
 174
 175                                 SCSI_Capacity_t DiskCapacity;
 176                                 if (MS_Host_ReadDeviceCapacity(&FlashDisk_MS_Interface, 0, &DiskCapacity))
 177                                 {
 178                                         printf("Error retrieving device capacity.\r\n");
 179                                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 180                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 181                                         break;
 182                                 }
 183
 184                                 printf("%lu blocks of %lu bytes.\r\n", DiskCapacity.Blocks, DiskCapacity.BlockSize);
 185
 186                                 uint8_t BlockBuffer[DiskCapacity.BlockSize];
 187
 188                                 if (MS_Host_ReadDeviceBlocks(&FlashDisk_MS_Interface, 0, 0x00000000, 1, DiskCapacity.BlockSize, BlockBuffer))
 189                                 {
 190                                         printf("Error reading device block.\r\n");
 191                                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 192                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 193                                         break;
 194                                 }
 195
 196                                 printf("\r\nContents of first block:\r\n");
 197
 198                                 for (uint16_t Chunk = 0; Chunk < (DiskCapacity.BlockSize >> 4); Chunk++)
 199                                 {
 200                                         uint8_t* ChunkPtr = &BlockBuffer[Chunk << 4];
 201
 202                                         /* Print out the 16 bytes of the chunk in HEX format */
 203                                         for (uint8_t ByteOffset = 0; ByteOffset < (1 << 4); ByteOffset++)
 204                                         {
 205                                                 char CurrByte = *(ChunkPtr + ByteOffset);
 206                                                 printf_P(PSTR("%.2X "), CurrByte);
 207                                         }
 208
 209                                         printf("    ");
 210
 211                                         /* Print out the 16 bytes of the chunk in ASCII format */
 212                                         for (uint8_t ByteOffset = 0; ByteOffset < (1 << 4); ByteOffset++)
 213                                         {
 214                                                 char CurrByte = *(ChunkPtr + ByteOffset);
 215                                                 putchar(isprint(CurrByte) ? CurrByte : '.');
 216                                         }
 217
 218                                         printf("\r\n");
 219                                 }
 220
 221                                 LEDs_SetAllLEDs(LEDMASK_USB_READY);
 222                                 USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 223                                 break;
 224                 }
 225
 226                 MS_Host_USBTask(&FlashDisk_MS_Interface);
 227                 USB_USBTask();
 228         }
 229 }
 230
 231 /** Configures the board hardware and chip peripherals for the demo's functionality. */
 232 void SetupHardware(void)
 233 {
 234         /* Disable watchdog if enabled by bootloader/fuses */
 235         MCUSR &= ~(1 << WDRF);
 236         wdt_disable();
 237
 238         /* Disable clock division */
 239         clock_prescale_set(clock_div_1);
 240
 241         /* Hardware Initialization */
 242         SerialStream_Init(9600, false);
 243         LEDs_Init();
 244         USB_Init();
 245 }
 246
 247 /** Event handler for the USB_DeviceAttached event. This indicates that a device has been attached to the host, and
 248  *  starts the library USB task to begin the enumeration and USB management process.
 249  */
 250 void EVENT_USB_Host_DeviceAttached(void)
 251 {
 252         puts_P(PSTR("Device Attached.\r\n"));
 253         LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
 254 }
 255
 256 /** Event handler for the USB_DeviceUnattached event. This indicates that a device has been removed from the host, and
 257  *  stops the library USB task management process.
 258  */
 259 void EVENT_USB_Host_DeviceUnattached(void)
 260 {
 261         puts_P(PSTR("\r\nDevice Unattached.\r\n"));
 262         LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
 263 }
 264
 265 /** Event handler for the USB_DeviceEnumerationComplete event. This indicates that a device has been successfully
 266  *  enumerated by the host and is now ready to be used by the application.
 267  */
 268 void EVENT_USB_Host_DeviceEnumerationComplete(void)
 269 {
 270         LEDs_SetAllLEDs(LEDMASK_USB_READY);
 271 }
 272
 273 /** Event handler for the USB_HostError event. This indicates that a hardware error occurred while in host mode. */
 274 void EVENT_USB_Host_HostError(const uint8_t ErrorCode)
 275 {
 276         USB_ShutDown();
 277
 278         printf_P(PSTR(ESC_FG_RED "Host Mode Error\r\n"
 279                                  " -- Error Code %d\r\n" ESC_FG_WHITE), ErrorCode);
 280
 281         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 282         for(;;);
 283 }
 284
 285 /** Event handler for the USB_DeviceEnumerationFailed event. This indicates that a problem occurred while
 286  *  enumerating an attached USB device.
 287  */
 288 void EVENT_USB_Host_DeviceEnumerationFailed(const uint8_t ErrorCode, const uint8_t SubErrorCode)
 289 {
 290         printf_P(PSTR(ESC_FG_RED "Dev Enum Error\r\n"
 291                                  " -- Error Code %d\r\n"
 292                                  " -- Sub Error Code %d\r\n"
 293                                  " -- In State %d\r\n" ESC_FG_WHITE), ErrorCode, SubErrorCode, USB_HostState);
 294
 295         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 296 }