Demos/Host/ClassDriver/MassStorageHost/MassStorageHost.c

   1 /*
   2              LUFA Library
   3      Copyright (C) Dean Camera, 2013.
   4
   5   dean [at] fourwalledcubicle [dot] com
   6            www.lufa-lib.org
   7 */
   8
   9 /*
  10   Copyright 2013  Dean Camera (dean [at] fourwalledcubicle [dot] com)
  11
  12   Permission to use, copy, modify, distribute, and sell this
  13   software and its documentation for any purpose is hereby granted
  14   without fee, provided that the above copyright notice appear in
  15   all 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 disclaims 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                                 .DataINPipe             =
  48                                         {
  49                                                 .Address        = (PIPE_DIR_IN  | 1),
  50                                                 .Banks          = 1,
  51                                         },
  52                                 .DataOUTPipe            =
  53                                         {
  54                                                 .Address        = (PIPE_DIR_OUT | 2),
  55                                                 .Banks          = 1,
  56                                         },
  57                         },
  58         };
  59
  60
  61 /** Main program entry point. This routine configures the hardware required by the application, then
  62  *  enters a loop to run the application tasks in sequence.
  63  */
  64 int main(void)
  65 {
  66         SetupHardware();
  67
  68         puts_P(PSTR(ESC_FG_CYAN "Mass Storage Host Demo running.\r\n" ESC_FG_WHITE));
  69
  70         LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
  71         GlobalInterruptEnable();
  72
  73         for (;;)
  74         {
  75                 MassStorageHost_Task();
  76
  77                 MS_Host_USBTask(&FlashDisk_MS_Interface);
  78                 USB_USBTask();
  79         }
  80 }
  81
  82 /** Configures the board hardware and chip peripherals for the demo's functionality. */
  83 void SetupHardware(void)
  84 {
  85 #if (ARCH == ARCH_AVR8)
  86         /* Disable watchdog if enabled by bootloader/fuses */
  87         MCUSR &= ~(1 << WDRF);
  88         wdt_disable();
  89
  90         /* Disable clock division */
  91         clock_prescale_set(clock_div_1);
  92 #endif
  93
  94         /* Hardware Initialization */
  95         Serial_Init(9600, false);
  96         LEDs_Init();
  97         USB_Init();
  98
  99         /* Create a stdio stream for the serial port for stdin and stdout */
 100         Serial_CreateStream(NULL);
 101 }
 102
 103 /** Task to manage an enumerated USB Mass Storage device once connected, to print out
 104  *  data from the device.
 105  */
 106 void MassStorageHost_Task(void)
 107 {
 108         if (USB_HostState != HOST_STATE_Configured)
 109           return;
 110
 111         LEDs_SetAllLEDs(LEDMASK_USB_BUSY);
 112
 113         puts_P(PSTR("Waiting until ready...\r\n"));
 114
 115         for (;;)
 116         {
 117                 uint8_t ErrorCode = MS_Host_TestUnitReady(&FlashDisk_MS_Interface, 0);
 118
 119                 if (!(ErrorCode))
 120                   break;
 121
 122                 /* Check if an error other than a logical command error (device busy) received */
 123                 if (ErrorCode != MS_ERROR_LOGICAL_CMD_FAILED)
 124                 {
 125                         puts_P(PSTR("Error waiting for device to be ready.\r\n"));
 126                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 127                         USB_Host_SetDeviceConfiguration(0);
 128                         return;
 129                 }
 130         }
 131
 132         puts_P(PSTR("Retrieving Capacity...\r\n"));
 133
 134         SCSI_Capacity_t DiskCapacity;
 135         if (MS_Host_ReadDeviceCapacity(&FlashDisk_MS_Interface, 0, &DiskCapacity))
 136         {
 137                 puts_P(PSTR("Error retrieving device capacity.\r\n"));
 138                 LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 139                 USB_Host_SetDeviceConfiguration(0);
 140                 return;
 141         }
 142
 143         printf_P(PSTR("%lu blocks of %lu bytes.\r\n"), DiskCapacity.Blocks, DiskCapacity.BlockSize);
 144
 145         uint8_t BlockBuffer[DiskCapacity.BlockSize];
 146
 147         if (MS_Host_ReadDeviceBlocks(&FlashDisk_MS_Interface, 0, 0x00000000, 1, DiskCapacity.BlockSize, BlockBuffer))
 148         {
 149                 puts_P(PSTR("Error reading device block.\r\n"));
 150                 LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 151                 USB_Host_SetDeviceConfiguration(0);
 152                 return;
 153         }
 154
 155         puts_P(PSTR("\r\nContents of first block:\r\n"));
 156
 157         for (uint16_t Chunk = 0; Chunk < (DiskCapacity.BlockSize >> 4); Chunk++)
 158         {
 159                 uint8_t* ChunkPtr = &BlockBuffer[Chunk << 4];
 160
 161                 /* Print out the 16 bytes of the chunk in HEX format */
 162                 for (uint8_t ByteOffset = 0; ByteOffset < (1 << 4); ByteOffset++)
 163                 {
 164                         char CurrByte = *(ChunkPtr + ByteOffset);
 165                         printf_P(PSTR("%.2X "), CurrByte);
 166                 }
 167
 168                 printf_P(PSTR("    "));
 169
 170                 /* Print out the 16 bytes of the chunk in ASCII format */
 171                 for (uint8_t ByteOffset = 0; ByteOffset < (1 << 4); ByteOffset++)
 172                 {
 173                         char CurrByte = *(ChunkPtr + ByteOffset);
 174                         putchar(isprint(CurrByte) ? CurrByte : '.');
 175                 }
 176
 177                 printf_P(PSTR("\r\n"));
 178         }
 179
 180         LEDs_SetAllLEDs(LEDMASK_USB_READY);
 181         USB_Host_SetDeviceConfiguration(0);
 182 }
 183
 184 /** Event handler for the USB_DeviceAttached event. This indicates that a device has been attached to the host, and
 185  *  starts the library USB task to begin the enumeration and USB management process.
 186  */
 187 void EVENT_USB_Host_DeviceAttached(void)
 188 {
 189         puts_P(PSTR("Device Attached.\r\n"));
 190         LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
 191 }
 192
 193 /** Event handler for the USB_DeviceUnattached event. This indicates that a device has been removed from the host, and
 194  *  stops the library USB task management process.
 195  */
 196 void EVENT_USB_Host_DeviceUnattached(void)
 197 {
 198         puts_P(PSTR("\r\nDevice Unattached.\r\n"));
 199         LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
 200 }
 201
 202 /** Event handler for the USB_DeviceEnumerationComplete event. This indicates that a device has been successfully
 203  *  enumerated by the host and is now ready to be used by the application.
 204  */
 205 void EVENT_USB_Host_DeviceEnumerationComplete(void)
 206 {
 207         LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
 208
 209         uint16_t ConfigDescriptorSize;
 210         uint8_t  ConfigDescriptorData[512];
 211
 212         if (USB_Host_GetDeviceConfigDescriptor(1, &ConfigDescriptorSize, ConfigDescriptorData,
 213                                                sizeof(ConfigDescriptorData)) != HOST_GETCONFIG_Successful)
 214         {
 215                 puts_P(PSTR("Error Retrieving Configuration Descriptor.\r\n"));
 216                 LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 217                 return;
 218         }
 219
 220         if (MS_Host_ConfigurePipes(&FlashDisk_MS_Interface,
 221                                    ConfigDescriptorSize, ConfigDescriptorData) != MS_ENUMERROR_NoError)
 222         {
 223                 puts_P(PSTR("Attached Device Not a Valid Mass Storage Device.\r\n"));
 224                 LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 225                 return;
 226         }
 227
 228         if (USB_Host_SetDeviceConfiguration(1) != HOST_SENDCONTROL_Successful)
 229         {
 230                 puts_P(PSTR("Error Setting Device Configuration.\r\n"));
 231                 LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 232                 return;
 233         }
 234
 235         uint8_t MaxLUNIndex;
 236         if (MS_Host_GetMaxLUN(&FlashDisk_MS_Interface, &MaxLUNIndex))
 237         {
 238                 puts_P(PSTR("Error retrieving max LUN index.\r\n"));
 239                 LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 240                 USB_Host_SetDeviceConfiguration(0);
 241                 return;
 242         }
 243
 244         printf_P(PSTR("Total LUNs: %d - Using first LUN in device.\r\n"), (MaxLUNIndex + 1));
 245
 246         if (MS_Host_ResetMSInterface(&FlashDisk_MS_Interface))
 247         {
 248                 puts_P(PSTR("Error resetting Mass Storage interface.\r\n"));
 249                 LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 250                 USB_Host_SetDeviceConfiguration(0);
 251                 return;
 252         }
 253
 254         SCSI_Request_Sense_Response_t SenseData;
 255         if (MS_Host_RequestSense(&FlashDisk_MS_Interface, 0, &SenseData) != 0)
 256         {
 257                 puts_P(PSTR("Error retrieving device sense.\r\n"));
 258                 LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 259                 USB_Host_SetDeviceConfiguration(0);
 260                 return;
 261         }
 262
 263         if (MS_Host_PreventAllowMediumRemoval(&FlashDisk_MS_Interface, 0, true))
 264         {
 265                 puts_P(PSTR("Error setting Prevent Device Removal bit.\r\n"));
 266                 LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 267                 USB_Host_SetDeviceConfiguration(0);
 268                 return;
 269         }
 270
 271         SCSI_Inquiry_Response_t InquiryData;
 272         if (MS_Host_GetInquiryData(&FlashDisk_MS_Interface, 0, &InquiryData))
 273         {
 274                 puts_P(PSTR("Error retrieving device Inquiry data.\r\n"));
 275                 LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 276                 USB_Host_SetDeviceConfiguration(0);
 277                 return;
 278         }
 279
 280         printf_P(PSTR("Vendor \"%.8s\", Product \"%.16s\"\r\n"), InquiryData.VendorID, InquiryData.ProductID);
 281
 282         puts_P(PSTR("Mass Storage Device Enumerated.\r\n"));
 283         LEDs_SetAllLEDs(LEDMASK_USB_READY);
 284 }
 285
 286 /** Event handler for the USB_HostError event. This indicates that a hardware error occurred while in host mode. */
 287 void EVENT_USB_Host_HostError(const uint8_t ErrorCode)
 288 {
 289         USB_Disable();
 290
 291         printf_P(PSTR(ESC_FG_RED "Host Mode Error\r\n"
 292                                  " -- Error Code %d\r\n" ESC_FG_WHITE), ErrorCode);
 293
 294         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 295         for(;;);
 296 }
 297
 298 /** Event handler for the USB_DeviceEnumerationFailed event. This indicates that a problem occurred while
 299  *  enumerating an attached USB device.
 300  */
 301 void EVENT_USB_Host_DeviceEnumerationFailed(const uint8_t ErrorCode,
 302                                             const uint8_t SubErrorCode)
 303 {
 304         printf_P(PSTR(ESC_FG_RED "Dev Enum Error\r\n"
 305                                  " -- Error Code %d\r\n"
 306                                  " -- Sub Error Code %d\r\n"
 307                                  " -- In State %d\r\n" ESC_FG_WHITE), ErrorCode, SubErrorCode, USB_HostState);
 308
 309         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 310 }
 311