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