LUFA/Drivers/USB/Core/UC3/USBInterrupt_UC3.c

   1 /*
   2              LUFA Library
   3      Copyright (C) Dean Camera, 2011.
   4
   5   dean [at] fourwalledcubicle [dot] com
   6            www.lufa-lib.org
   7 */
   8
   9 /*
  10   Copyright 2011  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 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 #define  __INCLUDE_FROM_USB_DRIVER
  32 #include "../USBInterrupt.h"
  33
  34 void USB_INT_DisableAllInterrupts(void)
  35 {
  36         AVR32_USBB.USBCON.vbuste = false;
  37         AVR32_USBB.USBCON.idte   = false;
  38
  39         AVR32_USBB.uhinteclr = 0xFFFFFFFF;
  40         AVR32_USBB.udinteclr = 0xFFFFFFFF;
  41 }
  42
  43 void USB_INT_ClearAllInterrupts(void)
  44 {
  45         AVR32_USBB.USBSTACLR.vbustic = true;
  46         AVR32_USBB.USBSTACLR.idtic   = true;
  47
  48         AVR32_USBB.uhintclr = 0xFFFFFFFF;
  49         AVR32_USBB.udintclr = 0xFFFFFFFF;
  50 }
  51
  52 ISR(USB_GEN_vect)
  53 {
  54         #if defined(USB_CAN_BE_DEVICE)
  55         #if !defined(NO_SOF_EVENTS)
  56         if (USB_INT_HasOccurred(USB_INT_SOFI) && USB_INT_IsEnabled(USB_INT_SOFI))
  57         {
  58                 USB_INT_Clear(USB_INT_SOFI);
  59
  60                 EVENT_USB_Device_StartOfFrame();
  61         }
  62         #endif
  63
  64         if (USB_INT_HasOccurred(USB_INT_VBUSTI) && USB_INT_IsEnabled(USB_INT_VBUSTI))
  65         {
  66                 USB_INT_Clear(USB_INT_VBUSTI);
  67
  68                 if (USB_VBUS_GetStatus())
  69                 {
  70                         USB_DeviceState = DEVICE_STATE_Powered;
  71                         EVENT_USB_Device_Connect();
  72                 }
  73                 else
  74                 {
  75                         USB_DeviceState = DEVICE_STATE_Unattached;
  76                         EVENT_USB_Device_Disconnect();
  77                 }
  78         }
  79
  80         if (USB_INT_HasOccurred(USB_INT_SUSPI) && USB_INT_IsEnabled(USB_INT_SUSPI))
  81         {
  82                 USB_INT_Clear(USB_INT_SUSPI);
  83
  84                 USB_INT_Disable(USB_INT_SUSPI);
  85                 USB_INT_Enable(USB_INT_WAKEUPI);
  86
  87                 USB_CLK_Freeze();
  88
  89                 USB_DeviceState = DEVICE_STATE_Suspended;
  90                 EVENT_USB_Device_Suspend();
  91         }
  92
  93         if (USB_INT_HasOccurred(USB_INT_WAKEUPI) && USB_INT_IsEnabled(USB_INT_WAKEUPI))
  94         {
  95                 USB_CLK_Unfreeze();
  96
  97                 USB_INT_Clear(USB_INT_WAKEUPI);
  98
  99                 USB_INT_Disable(USB_INT_WAKEUPI);
 100                 USB_INT_Enable(USB_INT_SUSPI);
 101
 102                 if (USB_ConfigurationNumber)
 103                   USB_DeviceState = DEVICE_STATE_Configured;
 104                 else
 105                   USB_DeviceState = (USB_Device_IsAddressSet()) ? DEVICE_STATE_Configured : DEVICE_STATE_Powered;
 106
 107                 EVENT_USB_Device_WakeUp();
 108         }
 109
 110         if (USB_INT_HasOccurred(USB_INT_EORSTI) && USB_INT_IsEnabled(USB_INT_EORSTI))
 111         {
 112                 USB_INT_Clear(USB_INT_EORSTI);
 113
 114                 USB_DeviceState         = DEVICE_STATE_Default;
 115                 USB_ConfigurationNumber = 0;
 116
 117                 USB_INT_Clear(USB_INT_SUSPI);
 118                 USB_INT_Disable(USB_INT_SUSPI);
 119                 USB_INT_Enable(USB_INT_WAKEUPI);
 120
 121                 USB_Device_SetDeviceAddress(0);
 122                 Endpoint_ConfigureEndpoint(ENDPOINT_CONTROLEP, EP_TYPE_CONTROL,
 123                                            ENDPOINT_DIR_OUT, USB_ControlEndpointSize,
 124                                            ENDPOINT_BANK_SINGLE);
 125
 126                 EVENT_USB_Device_Reset();
 127         }
 128         #endif
 129
 130         #if defined(USB_CAN_BE_HOST)
 131         #if !defined(NO_SOF_EVENTS)
 132         if (USB_INT_HasOccurred(USB_INT_HSOFI) && USB_INT_IsEnabled(USB_INT_HSOFI))
 133         {
 134                 USB_INT_Clear(USB_INT_HSOFI);
 135
 136                 EVENT_USB_Host_StartOfFrame();
 137         }
 138         #endif
 139
 140         if (USB_INT_HasOccurred(USB_INT_DDISCI) && USB_INT_IsEnabled(USB_INT_DDISCI))
 141         {
 142                 USB_INT_Clear(USB_INT_DDISCI);
 143                 USB_INT_Clear(USB_INT_DCONNI);
 144                 USB_INT_Disable(USB_INT_DDISCI);
 145
 146                 EVENT_USB_Host_DeviceUnattached();
 147
 148                 USB_ResetInterface();
 149         }
 150
 151         if (USB_INT_HasOccurred(USB_INT_VBERRI) && USB_INT_IsEnabled(USB_INT_VBERRI))
 152         {
 153                 USB_INT_Clear(USB_INT_VBERRI);
 154
 155                 USB_Host_VBUS_Manual_Off();
 156                 USB_Host_VBUS_Auto_Off();
 157
 158                 EVENT_USB_Host_HostError(HOST_ERROR_VBusVoltageDip);
 159                 EVENT_USB_Host_DeviceUnattached();
 160
 161                 USB_HostState = HOST_STATE_Unattached;
 162         }
 163
 164         if (USB_INT_HasOccurred(USB_INT_DCONNI) && USB_INT_IsEnabled(USB_INT_DCONNI))
 165         {
 166                 USB_INT_Clear(USB_INT_DCONNI);
 167                 USB_INT_Disable(USB_INT_DCONNI);
 168
 169                 EVENT_USB_Host_DeviceAttached();
 170
 171                 USB_INT_Enable(USB_INT_DDISCI);
 172
 173                 USB_HostState = HOST_STATE_Powered;
 174         }
 175
 176         if (USB_INT_HasOccurred(USB_INT_BCERRI) && USB_INT_IsEnabled(USB_INT_BCERRI))
 177         {
 178                 USB_INT_Clear(USB_INT_BCERRI);
 179
 180                 EVENT_USB_Host_DeviceEnumerationFailed(HOST_ENUMERROR_NoDeviceDetected, 0);
 181                 EVENT_USB_Host_DeviceUnattached();
 182
 183                 USB_ResetInterface();
 184         }
 185         #endif
 186
 187         #if defined(USB_CAN_BE_BOTH)
 188         if (USB_INT_HasOccurred(USB_INT_IDTI) && USB_INT_IsEnabled(USB_INT_IDTI))
 189         {
 190                 USB_INT_Clear(USB_INT_IDTI);
 191
 192                 if (USB_DeviceState != DEVICE_STATE_Unattached)
 193                   EVENT_USB_Device_Disconnect();
 194
 195                 if (USB_HostState != HOST_STATE_Unattached)
 196                   EVENT_USB_Host_DeviceUnattached();
 197
 198                 USB_CurrentMode = USB_GetUSBModeFromUID();
 199                 USB_ResetInterface();
 200
 201                 EVENT_USB_UIDChange();
 202         }
 203         #endif
 204 }