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