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                                 .DataINPipeDoubleBank   = false,
  49
  50                                 .DataOUTPipeNumber      = 2,
  51                                 .DataOUTPipeDoubleBank  = false,
  52                         },
  53         };
  54
  55
  56 /** Main program entry point. This routine configures the hardware required by the application, then
  57  *  enters a loop to run the application tasks in sequence.
  58  */
  59 int main(void)
  60 {
  61         SetupHardware();
  62
  63         puts_P(PSTR(ESC_FG_CYAN "Mass Storage Host Demo running.\r\n" ESC_FG_WHITE));
  64
  65         LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
  66
  67         for (;;)
  68         {
  69                 switch (USB_HostState)
  70                 {
  71                         case HOST_STATE_Addressed:
  72                                 LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
  73
  74                                 uint16_t ConfigDescriptorSize;
  75                                 uint8_t  ConfigDescriptorData[512];
  76
  77                                 if (USB_Host_GetDeviceConfigDescriptor(1, &ConfigDescriptorSize, ConfigDescriptorData,
  78                                                                        sizeof(ConfigDescriptorData)) != HOST_GETCONFIG_Successful)
  79                                 {
  80                                         printf("Error Retrieving Configuration Descriptor.\r\n");
  81                                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
  82                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
  83                                         break;
  84                                 }
  85
  86                                 if (MS_Host_ConfigurePipes(&FlashDisk_MS_Interface,
  87                                                             ConfigDescriptorSize, ConfigDescriptorData) != MS_ENUMERROR_NoError)
  88                                 {
  89                                         printf("Attached Device Not a Valid Mass Storage Device.\r\n");
  90                                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
  91                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
  92                                         break;
  93                                 }
  94
  95                                 if (USB_Host_SetDeviceConfiguration(1) != HOST_SENDCONTROL_Successful)
  96                                 {
  97                                         printf("Error Setting Device Configuration.\r\n");
  98                                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
  99                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 100                                         break;
 101                                 }
 102
 103                                 printf("Mass Storage Device Enumerated.\r\n");
 104                                 USB_HostState = HOST_STATE_Configured;
 105                                 break;
 106                         case HOST_STATE_Configured:
 107                                 LEDs_SetAllLEDs(LEDMASK_USB_BUSY);
 108
 109                                 uint8_t MaxLUNIndex;
 110                                 if (MS_Host_GetMaxLUN(&FlashDisk_MS_Interface, &MaxLUNIndex))
 111                                 {
 112                                         printf("Error retrieving max LUN index.\r\n");
 113                                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 114                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 115                                         break;
 116                                 }
 117
 118                                 printf("Total LUNs: %d - Using first LUN in device.\r\n", (MaxLUNIndex + 1));
 119
 120                                 if (MS_Host_ResetMSInterface(&FlashDisk_MS_Interface))
 121                                 {
 122                                         printf("Error resetting Mass Storage interface.\r\n");
 123                                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 124                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 125                                         break;
 126                                 }
 127
 128                                 SCSI_Request_Sense_Response_t SenseData;
 129                                 if (MS_Host_RequestSense(&FlashDisk_MS_Interface, 0, &SenseData) != 0)
 130                                 {
 131                                         printf("Error retrieving device sense.\r\n");
 132                                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 133                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 134                                         break;
 135                                 }
 136
 137                                 if (MS_Host_PreventAllowMediumRemoval(&FlashDisk_MS_Interface, 0, true))
 138                                 {
 139                                         printf("Error setting Prevent Device Removal bit.\r\n");
 140                                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 141                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 142                                         break;
 143                                 }
 144
 145                                 SCSI_Inquiry_Response_t InquiryData;
 146                                 if (MS_Host_GetInquiryData(&FlashDisk_MS_Interface, 0, &InquiryData))
 147                                 {
 148                                         printf("Error retrieving device Inquiry data.\r\n");
 149                                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 150                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 151                                         break;
 152                                 }
 153
 154                                 printf("Vendor \"%.8s\", Product \"%.16s\"\r\n", InquiryData.VendorID, InquiryData.ProductID);
 155
 156                                 printf("Waiting until ready...\r\n");
 157
 158                                 for (;;)
 159                                 {
 160                                         uint8_t ErrorCode = MS_Host_TestUnitReady(&FlashDisk_MS_Interface, 0);
 161
 162                                         if (!(ErrorCode))
 163                                           break;
 164
 165                                         /* Check if an error other than a logical command error (device busy) received */
 166                                         if (ErrorCode != MS_ERROR_LOGICAL_CMD_FAILED)
 167                                         {
 168                                                 printf("Error waiting for device to be ready.\r\n");
 169                                                 LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 170                                                 USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 171                                                 break;
 172                                         }
 173                                 }
 174
 175                                 printf("Retrieving Capacity... ");
 176
 177                                 SCSI_Capacity_t DiskCapacity;
 178                                 if (MS_Host_ReadDeviceCapacity(&FlashDisk_MS_Interface, 0, &DiskCapacity))
 179                                 {
 180                                         printf("Error retrieving device capacity.\r\n");
 181                                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 182                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 183                                         break;
 184                                 }
 185
 186                                 printf("%lu blocks of %lu bytes.\r\n", DiskCapacity.Blocks, DiskCapacity.BlockSize);
 187
 188                                 uint8_t BlockBuffer[DiskCapacity.BlockSize];
 189
 190                                 if (MS_Host_ReadDeviceBlocks(&FlashDisk_MS_Interface, 0, 0x00000000, 1, DiskCapacity.BlockSize, BlockBuffer))
 191                                 {
 192                                         printf("Error reading device block.\r\n");
 193                                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 194                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 195                                         break;
 196                                 }
 197
 198                                 printf("\r\nContents of first block:\r\n");
 199
 200                                 for (uint16_t Chunk = 0; Chunk < (DiskCapacity.BlockSize >> 4); Chunk++)
 201                                 {
 202                                         uint8_t* ChunkPtr = &BlockBuffer[Chunk << 4];
 203
 204                                         /* Print out the 16 bytes of the chunk in HEX format */
 205                                         for (uint8_t ByteOffset = 0; ByteOffset < (1 << 4); ByteOffset++)
 206                                         {
 207                                                 char CurrByte = *(ChunkPtr + ByteOffset);
 208                                                 printf_P(PSTR("%.2X "), CurrByte);
 209                                         }
 210
 211                                         printf("    ");
 212
 213                                         /* Print out the 16 bytes of the chunk in ASCII format */
 214                                         for (uint8_t ByteOffset = 0; ByteOffset < (1 << 4); ByteOffset++)
 215                                         {
 216                                                 char CurrByte = *(ChunkPtr + ByteOffset);
 217                                                 putchar(isprint(CurrByte) ? CurrByte : '.');
 218                                         }
 219
 220                                         printf("\r\n");
 221                                 }
 222
 223                                 LEDs_SetAllLEDs(LEDMASK_USB_READY);
 224                                 USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 225                                 break;
 226                 }
 227
 228                 MS_Host_USBTask(&FlashDisk_MS_Interface);
 229                 USB_USBTask();
 230         }
 231 }
 232
 233 /** Configures the board hardware and chip peripherals for the demo's functionality. */
 234 void SetupHardware(void)
 235 {
 236         /* Disable watchdog if enabled by bootloader/fuses */
 237         MCUSR &= ~(1 << WDRF);
 238         wdt_disable();
 239
 240         /* Disable clock division */
 241         clock_prescale_set(clock_div_1);
 242
 243         /* Hardware Initialization */
 244         SerialStream_Init(9600, false);
 245         LEDs_Init();
 246         USB_Init();
 247 }
 248
 249 /** Event handler for the USB_DeviceAttached event. This indicates that a device has been attached to the host, and
 250  *  starts the library USB task to begin the enumeration and USB management process.
 251  */
 252 void EVENT_USB_Host_DeviceAttached(void)
 253 {
 254         puts_P(PSTR("Device Attached.\r\n"));
 255         LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
 256 }
 257
 258 /** Event handler for the USB_DeviceUnattached event. This indicates that a device has been removed from the host, and
 259  *  stops the library USB task management process.
 260  */
 261 void EVENT_USB_Host_DeviceUnattached(void)
 262 {
 263         puts_P(PSTR("\r\nDevice Unattached.\r\n"));
 264         LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
 265 }
 266
 267 /** Event handler for the USB_DeviceEnumerationComplete event. This indicates that a device has been successfully
 268  *  enumerated by the host and is now ready to be used by the application.
 269  */
 270 void EVENT_USB_Host_DeviceEnumerationComplete(void)
 271 {
 272         LEDs_SetAllLEDs(LEDMASK_USB_READY);
 273 }
 274
 275 /** Event handler for the USB_HostError event. This indicates that a hardware error occurred while in host mode. */
 276 void EVENT_USB_Host_HostError(const uint8_t ErrorCode)
 277 {
 278         USB_ShutDown();
 279
 280         printf_P(PSTR(ESC_FG_RED "Host Mode Error\r\n"
 281                                  " -- Error Code %d\r\n" ESC_FG_WHITE), ErrorCode);
 282
 283         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 284         for(;;);
 285 }
 286
 287 /** Event handler for the USB_DeviceEnumerationFailed event. This indicates that a problem occurred while
 288  *  enumerating an attached USB device.
 289  */
 290 void EVENT_USB_Host_DeviceEnumerationFailed(const uint8_t ErrorCode, const uint8_t SubErrorCode)
 291 {
 292         printf_P(PSTR(ESC_FG_RED "Dev Enum Error\r\n"
 293                                  " -- Error Code %d\r\n"
 294                                  " -- Sub Error Code %d\r\n"
 295                                  " -- In State %d\r\n" ESC_FG_WHITE), ErrorCode, SubErrorCode, USB_HostState);
 296
 297         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 298 }