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_Inquiry_Response_t InquiryData;
 125                                 if (MS_Host_GetInquiryData(&FlashDisk_MS_Interface, &InquiryData))
 126                                 {
 127                                         printf("Error retreiving device Inquiry data.\r\n");
 128                                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 129                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 130                                         break;
 131                                 }
 132
 133                                 printf("Vendor \"%.8s\", Product \"%.16s\"\r\n", InquiryData.VendorID, InquiryData.ProductID);
 134
 135                                 bool DeviceReady;
 136                                 printf("Waiting until ready...\r\n"));
 137
 138                                 do
 139                                 {
 140                                         if (USB_HostState != HOST_STATE_Configured)
 141                                           break;
 142
 143                                         if (MS_Host_TestUnitReady(&FlashDisk_MS_Interface, 0, &DeviceReady))
 144                                         {
 145                                                 printf("Error waiting for device to be ready.\r\n");
 146                                                 LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 147                                                 USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 148                                                 break;
 149                                         }
 150                                 }
 151                                 while (DeviceReady == false);
 152
 153                                 puts_P(PSTR("Retrieving Capacity... "));
 154
 155                                 SCSI_Capacity_t DiskCapacity;
 156                                 if (MS_Host_ReadDeviceCapacity(0, &DiskCapacity))
 157                                 {
 158                                         printf("Error retrieving device capacity.\r\n");
 159                                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 160                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 161                                         break;
 162                                 }
 163
 164                                 printf("%lu blocks of %lu bytes.\r\n", DiskCapacity.Blocks, DiskCapacity.BlockSize);
 165
 166                                 LEDs_SetAllLEDs(LEDMASK_USB_READY);
 167                                 USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 168                                 break;
 169                 }
 170
 171                 MS_Host_USBTask(&FlashDisk_MS_Interface);
 172                 USB_USBTask();
 173         }
 174 }
 175
 176 /** Configures the board hardware and chip peripherals for the demo's functionality. */
 177 void SetupHardware(void)
 178 {
 179         /* Disable watchdog if enabled by bootloader/fuses */
 180         MCUSR &= ~(1 << WDRF);
 181         wdt_disable();
 182
 183         /* Disable clock division */
 184         clock_prescale_set(clock_div_1);
 185
 186         /* Hardware Initialization */
 187         SerialStream_Init(9600, false);
 188         LEDs_Init();
 189         USB_Init();
 190 }
 191
 192 /** Event handler for the USB_DeviceAttached event. This indicates that a device has been attached to the host, and
 193  *  starts the library USB task to begin the enumeration and USB management process.
 194  */
 195 void EVENT_USB_Host_DeviceAttached(void)
 196 {
 197         puts_P(PSTR("Device Attached.\r\n"));
 198         LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
 199 }
 200
 201 /** Event handler for the USB_DeviceUnattached event. This indicates that a device has been removed from the host, and
 202  *  stops the library USB task management process.
 203  */
 204 void EVENT_USB_Host_DeviceUnattached(void)
 205 {
 206         puts_P(PSTR("\r\nDevice Unattached.\r\n"));
 207         LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
 208 }
 209
 210 /** Event handler for the USB_DeviceEnumerationComplete event. This indicates that a device has been successfully
 211  *  enumerated by the host and is now ready to be used by the application.
 212  */
 213 void EVENT_USB_Host_DeviceEnumerationComplete(void)
 214 {
 215         LEDs_SetAllLEDs(LEDMASK_USB_READY);
 216 }
 217
 218 /** Event handler for the USB_HostError event. This indicates that a hardware error occurred while in host mode. */
 219 void EVENT_USB_Host_HostError(const uint8_t ErrorCode)
 220 {
 221         USB_ShutDown();
 222
 223         printf_P(PSTR(ESC_FG_RED "Host Mode Error\r\n"
 224                                  " -- Error Code %d\r\n" ESC_FG_WHITE), ErrorCode);
 225
 226         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 227         for(;;);
 228 }
 229
 230 /** Event handler for the USB_DeviceEnumerationFailed event. This indicates that a problem occurred while
 231  *  enumerating an attached USB device.
 232  */
 233 void EVENT_USB_Host_DeviceEnumerationFailed(const uint8_t ErrorCode, const uint8_t SubErrorCode)
 234 {
 235         printf_P(PSTR(ESC_FG_RED "Dev Enum Error\r\n"
 236                                  " -- Error Code %d\r\n"
 237                                  " -- Sub Error Code %d\r\n"
 238                                  " -- In State %d\r\n" ESC_FG_WHITE), ErrorCode, SubErrorCode, USB_HostState);
 239
 240         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 241 }