Projects/Webserver/USBDeviceMode.c

   1 /*
   2              LUFA Library
   3      Copyright (C) Dean Camera, 2018.
   4
   5   dean [at] fourwalledcubicle [dot] com
   6            www.lufa-lib.org
   7 */
   8
   9 /*
  10   Copyright 2018  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  *  USB Device Mode management functions and variables. This file contains the LUFA code required to
  34  *  manage the USB Mass Storage device mode.
  35  */
  36
  37 #include "USBDeviceMode.h"
  38
  39 /** Message buffer for RNDIS messages processed by the RNDIS device class driver. */
  40 static uint8_t RNDIS_Message_Buffer[192];
  41
  42 /** LUFA RNDIS Class driver interface configuration and state information. This structure is
  43  *  passed to all RNDIS Class driver functions, so that multiple instances of the same class
  44  *  within a device can be differentiated from one another.
  45  */
  46 USB_ClassInfo_RNDIS_Device_t Ethernet_RNDIS_Interface_Device =
  47         {
  48                 .Config =
  49                         {
  50                                 .ControlInterfaceNumber         = INTERFACE_ID_CDC_CCI,
  51                                 .DataINEndpoint                 =
  52                                         {
  53                                                 .Address                = CDC_TX_EPADDR,
  54                                                 .Size                   = CDC_TXRX_EPSIZE,
  55                                                 .Banks                  = 1,
  56                                         },
  57                                 .DataOUTEndpoint                =
  58                                         {
  59                                                 .Address                = CDC_RX_EPADDR,
  60                                                 .Size                   = CDC_TXRX_EPSIZE,
  61                                                 .Banks                  = 1,
  62                                         },
  63                                 .NotificationEndpoint           =
  64                                         {
  65                                                 .Address                = CDC_NOTIFICATION_EPADDR,
  66                                                 .Size                   = CDC_NOTIFICATION_EPSIZE,
  67                                                 .Banks                  = 1,
  68                                         },
  69                                 .AdapterVendorDescription       = "LUFA RNDIS Adapter",
  70                                 .AdapterMACAddress              = {{0x02, 0x00, 0x02, 0x00, 0x02, 0x00}},
  71                                 .MessageBuffer                  = RNDIS_Message_Buffer,
  72                                 .MessageBufferLength            = sizeof(RNDIS_Message_Buffer),
  73                         },
  74         };
  75
  76 /** LUFA Mass Storage Class driver interface configuration and state information. This structure is
  77  *  passed to all Mass Storage Class driver functions, so that multiple instances of the same class
  78  *  within a device can be differentiated from one another.
  79  */
  80 USB_ClassInfo_MS_Device_t Disk_MS_Interface =
  81         {
  82                 .Config =
  83                         {
  84                                 .InterfaceNumber                = INTERFACE_ID_MassStorage,
  85                                 .DataINEndpoint                 =
  86                                         {
  87                                                 .Address                = MASS_STORAGE_IN_EPADDR,
  88                                                 .Size                   = MASS_STORAGE_IO_EPSIZE,
  89                                                 .Banks                  = 1,
  90                                         },
  91                                 .DataOUTEndpoint                =
  92                                         {
  93                                                 .Address                = MASS_STORAGE_OUT_EPADDR,
  94                                                 .Size                   = MASS_STORAGE_IO_EPSIZE,
  95                                                 .Banks                  = 1,
  96                                         },
  97                                 .TotalLUNs                 = 1,
  98                         },
  99         };
 100
 101
 102 /** USB device mode management task. This function manages the Mass Storage Device class driver when the device is
 103  *  initialized in USB device mode.
 104  */
 105 void USBDeviceMode_USBTask(void)
 106 {
 107         if (USB_CurrentMode != USB_MODE_Device)
 108           return;
 109
 110         uIPManagement_ManageNetwork();
 111
 112         RNDIS_Device_USBTask(&Ethernet_RNDIS_Interface_Device);
 113         MS_Device_USBTask(&Disk_MS_Interface);
 114 }
 115
 116 /** Event handler for the library USB Connection event. */
 117 void EVENT_USB_Device_Connect(void)
 118 {
 119         LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
 120
 121         uIPManagement_Init();
 122 }
 123
 124 /** Event handler for the library USB Disconnection event. */
 125 void EVENT_USB_Device_Disconnect(void)
 126 {
 127         LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
 128 }
 129
 130 /** Event handler for the library USB Configuration Changed event. */
 131 void EVENT_USB_Device_ConfigurationChanged(void)
 132 {
 133         bool ConfigSuccess = true;
 134
 135         ConfigSuccess &= RNDIS_Device_ConfigureEndpoints(&Ethernet_RNDIS_Interface_Device);
 136         ConfigSuccess &= MS_Device_ConfigureEndpoints(&Disk_MS_Interface);
 137
 138         LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);
 139 }
 140
 141 /** Event handler for the library USB Control Request reception event. */
 142 void EVENT_USB_Device_ControlRequest(void)
 143 {
 144         /* Send MS OS Compatibility descriptor if requested by the host. */
 145         CheckIfMSCompatibilityDescriptorRequest();
 146
 147         RNDIS_Device_ProcessControlRequest(&Ethernet_RNDIS_Interface_Device);
 148         MS_Device_ProcessControlRequest(&Disk_MS_Interface);
 149 }
 150
 151 /** Mass Storage class driver callback function the reception of SCSI commands from the host, which must be processed.
 152  *
 153  *  \param[in] MSInterfaceInfo  Pointer to the Mass Storage class interface configuration structure being referenced
 154  */
 155 bool CALLBACK_MS_Device_SCSICommandReceived(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo)
 156 {
 157         bool CommandSuccess;
 158
 159         LEDs_SetAllLEDs(LEDMASK_USB_BUSY);
 160         CommandSuccess = SCSI_DecodeSCSICommand(MSInterfaceInfo);
 161         LEDs_SetAllLEDs(LEDMASK_USB_READY);
 162
 163         return CommandSuccess;
 164 }
 165