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

   1 /*
   2              LUFA Library
   3      Copyright (C) Dean Camera, 2012.
   4
   5   dean [at] fourwalledcubicle [dot] com
   6            www.lufa-lib.org
   7 */
   8
   9 /*
  10   Copyright 2012  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 #include "../../../../Common/Common.h"
  32 #if (ARCH == ARCH_UC3)
  33
  34 #define  __INCLUDE_FROM_USB_DRIVER
  35 #include "../USBInterrupt.h"
  36
  37 void USB_INT_DisableAllInterrupts(void)
  38 {
  39         AVR32_USBB.USBCON.vbuste     = false;
  40         AVR32_USBB.USBCON.idte       = false;
  41
  42         AVR32_USBB.uhinteclr         = -1;
  43         AVR32_USBB.udinteclr         = -1;
  44 }
  45
  46 void USB_INT_ClearAllInterrupts(void)
  47 {
  48         AVR32_USBB.USBSTACLR.vbustic = true;
  49         AVR32_USBB.USBSTACLR.idtic   = true;
  50
  51         AVR32_USBB.uhintclr          = -1;
  52         AVR32_USBB.udintclr          = -1;
  53 }
  54
  55 ISR(USB_GEN_vect)
  56 {
  57         #if defined(USB_CAN_BE_DEVICE)
  58         #if !defined(NO_SOF_EVENTS)
  59         if (USB_INT_HasOccurred(USB_INT_SOFI) && USB_INT_IsEnabled(USB_INT_SOFI))
  60         {
  61                 USB_INT_Clear(USB_INT_SOFI);
  62
  63                 EVENT_USB_Device_StartOfFrame();
  64         }
  65         #endif
  66
  67         if (USB_INT_HasOccurred(USB_INT_VBUSTI) && USB_INT_IsEnabled(USB_INT_VBUSTI))
  68         {
  69                 USB_INT_Clear(USB_INT_VBUSTI);
  70
  71                 if (USB_VBUS_GetStatus())
  72                 {
  73                         USB_DeviceState = DEVICE_STATE_Powered;
  74                         EVENT_USB_Device_Connect();
  75                 }
  76                 else
  77                 {
  78                         USB_DeviceState = DEVICE_STATE_Unattached;
  79                         EVENT_USB_Device_Disconnect();
  80                 }
  81         }
  82
  83         if (USB_INT_HasOccurred(USB_INT_SUSPI) && USB_INT_IsEnabled(USB_INT_SUSPI))
  84         {
  85                 USB_INT_Disable(USB_INT_SUSPI);
  86                 USB_INT_Enable(USB_INT_WAKEUPI);
  87
  88                 USB_CLK_Freeze();
  89
  90                 USB_DeviceState = DEVICE_STATE_Suspended;
  91                 EVENT_USB_Device_Suspend();
  92         }
  93
  94         if (USB_INT_HasOccurred(USB_INT_WAKEUPI) && USB_INT_IsEnabled(USB_INT_WAKEUPI))
  95         {
  96                 USB_CLK_Unfreeze();
  97
  98                 USB_INT_Clear(USB_INT_WAKEUPI);
  99
 100                 USB_INT_Disable(USB_INT_WAKEUPI);
 101                 USB_INT_Enable(USB_INT_SUSPI);
 102
 103                 if (USB_Device_ConfigurationNumber)
 104                   USB_DeviceState = DEVICE_STATE_Configured;
 105                 else
 106                   USB_DeviceState = (USB_Device_IsAddressSet()) ? DEVICE_STATE_Configured : DEVICE_STATE_Powered;
 107
 108                 EVENT_USB_Device_WakeUp();
 109         }
 110
 111         if (USB_INT_HasOccurred(USB_INT_EORSTI) && USB_INT_IsEnabled(USB_INT_EORSTI))
 112         {
 113                 USB_INT_Clear(USB_INT_EORSTI);
 114
 115                 USB_DeviceState                = DEVICE_STATE_Default;
 116                 USB_Device_ConfigurationNumber = 0;
 117
 118                 USB_INT_Clear(USB_INT_SUSPI);
 119                 USB_INT_Disable(USB_INT_SUSPI);
 120                 USB_INT_Enable(USB_INT_WAKEUPI);
 121
 122                 USB_Device_SetDeviceAddress(0);
 123                 Endpoint_ConfigureEndpoint(ENDPOINT_CONTROLEP, EP_TYPE_CONTROL,
 124                                            ENDPOINT_DIR_OUT, USB_Device_ControlEndpointSize,
 125                                            ENDPOINT_BANK_SINGLE);
 126
 127                 #if defined(INTERRUPT_CONTROL_ENDPOINT)
 128                 USB_INT_Enable(USB_INT_RXSTPI);
 129                 #endif
 130
 131                 EVENT_USB_Device_Reset();
 132         }
 133         #endif
 134
 135         #if defined(USB_CAN_BE_HOST)
 136         #if !defined(NO_SOF_EVENTS)
 137         if (USB_INT_HasOccurred(USB_INT_HSOFI) && USB_INT_IsEnabled(USB_INT_HSOFI))
 138         {
 139                 USB_INT_Clear(USB_INT_HSOFI);
 140
 141                 EVENT_USB_Host_StartOfFrame();
 142         }
 143         #endif
 144
 145         if (USB_INT_HasOccurred(USB_INT_DDISCI) && USB_INT_IsEnabled(USB_INT_DDISCI))
 146         {
 147                 USB_INT_Clear(USB_INT_DDISCI);
 148                 USB_INT_Clear(USB_INT_DCONNI);
 149                 USB_INT_Disable(USB_INT_DDISCI);
 150
 151                 EVENT_USB_Host_DeviceUnattached();
 152
 153                 USB_ResetInterface();
 154         }
 155
 156         if (USB_INT_HasOccurred(USB_INT_VBERRI) && USB_INT_IsEnabled(USB_INT_VBERRI))
 157         {
 158                 USB_INT_Clear(USB_INT_VBERRI);
 159
 160                 USB_Host_VBUS_Manual_Off();
 161                 USB_Host_VBUS_Auto_Off();
 162
 163                 EVENT_USB_Host_HostError(HOST_ERROR_VBusVoltageDip);
 164                 EVENT_USB_Host_DeviceUnattached();
 165
 166                 USB_HostState = HOST_STATE_Unattached;
 167         }
 168
 169         if (USB_INT_HasOccurred(USB_INT_DCONNI) && USB_INT_IsEnabled(USB_INT_DCONNI))
 170         {
 171                 USB_INT_Clear(USB_INT_DCONNI);
 172                 USB_INT_Disable(USB_INT_DCONNI);
 173
 174                 EVENT_USB_Host_DeviceAttached();
 175
 176                 USB_INT_Enable(USB_INT_DDISCI);
 177
 178                 USB_HostState = HOST_STATE_Powered;
 179         }
 180
 181         if (USB_INT_HasOccurred(USB_INT_BCERRI) && USB_INT_IsEnabled(USB_INT_BCERRI))
 182         {
 183                 USB_INT_Clear(USB_INT_BCERRI);
 184
 185                 EVENT_USB_Host_DeviceEnumerationFailed(HOST_ENUMERROR_NoDeviceDetected, 0);
 186                 EVENT_USB_Host_DeviceUnattached();
 187
 188                 USB_ResetInterface();
 189         }
 190         #endif
 191
 192         #if defined(USB_CAN_BE_BOTH)
 193         if (USB_INT_HasOccurred(USB_INT_IDTI) && USB_INT_IsEnabled(USB_INT_IDTI))
 194         {
 195                 USB_INT_Clear(USB_INT_IDTI);
 196
 197                 if (USB_DeviceState != DEVICE_STATE_Unattached)
 198                   EVENT_USB_Device_Disconnect();
 199
 200                 if (USB_HostState != HOST_STATE_Unattached)
 201                   EVENT_USB_Host_DeviceUnattached();
 202
 203                 USB_CurrentMode = USB_GetUSBModeFromUID();
 204                 USB_ResetInterface();
 205
 206                 EVENT_USB_UIDChange();
 207         }
 208         #endif
 209 }
 210
 211 #if defined(INTERRUPT_CONTROL_ENDPOINT) && defined(USB_CAN_BE_DEVICE)
 212 ISR(USB_COM_vect)
 213 {
 214         uint8_t PrevSelectedEndpoint = Endpoint_GetCurrentEndpoint();
 215
 216         Endpoint_SelectEndpoint(ENDPOINT_CONTROLEP);
 217         USB_INT_Disable(USB_INT_RXSTPI);
 218
 219         GlobalInterruptEnable();
 220
 221         USB_Device_ProcessControlRequest();
 222
 223         Endpoint_SelectEndpoint(ENDPOINT_CONTROLEP);
 224         USB_INT_Enable(USB_INT_RXSTPI);
 225         Endpoint_SelectEndpoint(PrevSelectedEndpoint);
 226 }
 227 #endif
 228
 229 #endif