LUFA/Drivers/USB/Core/UC3/USBInterrupt_UC3.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 #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_Addressed : 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                                            USB_Device_ControlEndpointSize, 1);
 125
 126                 #if defined(INTERRUPT_CONTROL_ENDPOINT)
 127                 USB_INT_Enable(USB_INT_RXSTPI);
 128                 #endif
 129
 130                 EVENT_USB_Device_Reset();
 131         }
 132         #endif
 133
 134         #if defined(USB_CAN_BE_HOST)
 135         #if !defined(NO_SOF_EVENTS)
 136         if (USB_INT_HasOccurred(USB_INT_HSOFI) && USB_INT_IsEnabled(USB_INT_HSOFI))
 137         {
 138                 USB_INT_Clear(USB_INT_HSOFI);
 139
 140                 EVENT_USB_Host_StartOfFrame();
 141         }
 142         #endif
 143
 144         if (USB_INT_HasOccurred(USB_INT_DDISCI) && USB_INT_IsEnabled(USB_INT_DDISCI))
 145         {
 146                 USB_INT_Clear(USB_INT_DDISCI);
 147                 USB_INT_Clear(USB_INT_DCONNI);
 148                 USB_INT_Disable(USB_INT_DDISCI);
 149
 150                 EVENT_USB_Host_DeviceUnattached();
 151
 152                 USB_ResetInterface();
 153         }
 154
 155         if (USB_INT_HasOccurred(USB_INT_VBERRI) && USB_INT_IsEnabled(USB_INT_VBERRI))
 156         {
 157                 USB_INT_Clear(USB_INT_VBERRI);
 158
 159                 USB_Host_VBUS_Manual_Off();
 160                 USB_Host_VBUS_Auto_Off();
 161
 162                 EVENT_USB_Host_HostError(HOST_ERROR_VBusVoltageDip);
 163                 EVENT_USB_Host_DeviceUnattached();
 164
 165                 USB_HostState = HOST_STATE_Unattached;
 166         }
 167
 168         if (USB_INT_HasOccurred(USB_INT_DCONNI) && USB_INT_IsEnabled(USB_INT_DCONNI))
 169         {
 170                 USB_INT_Clear(USB_INT_DCONNI);
 171                 USB_INT_Disable(USB_INT_DCONNI);
 172
 173                 EVENT_USB_Host_DeviceAttached();
 174
 175                 USB_INT_Enable(USB_INT_DDISCI);
 176
 177                 USB_HostState = HOST_STATE_Powered;
 178         }
 179
 180         if (USB_INT_HasOccurred(USB_INT_BCERRI) && USB_INT_IsEnabled(USB_INT_BCERRI))
 181         {
 182                 USB_INT_Clear(USB_INT_BCERRI);
 183
 184                 EVENT_USB_Host_DeviceEnumerationFailed(HOST_ENUMERROR_NoDeviceDetected, 0);
 185                 EVENT_USB_Host_DeviceUnattached();
 186
 187                 USB_ResetInterface();
 188         }
 189         #endif
 190
 191         #if defined(USB_CAN_BE_BOTH)
 192         if (USB_INT_HasOccurred(USB_INT_IDTI) && USB_INT_IsEnabled(USB_INT_IDTI))
 193         {
 194                 USB_INT_Clear(USB_INT_IDTI);
 195
 196                 if (USB_DeviceState != DEVICE_STATE_Unattached)
 197                   EVENT_USB_Device_Disconnect();
 198
 199                 if (USB_HostState != HOST_STATE_Unattached)
 200                   EVENT_USB_Host_DeviceUnattached();
 201
 202                 USB_CurrentMode = USB_GetUSBModeFromUID();
 203                 USB_ResetInterface();
 204
 205                 EVENT_USB_UIDChange();
 206         }
 207         #endif
 208 }
 209
 210 #if defined(INTERRUPT_CONTROL_ENDPOINT) && defined(USB_CAN_BE_DEVICE)
 211 ISR(USB_COM_vect)
 212 {
 213         uint8_t PrevSelectedEndpoint = Endpoint_GetCurrentEndpoint();
 214
 215         Endpoint_SelectEndpoint(ENDPOINT_CONTROLEP);
 216         USB_INT_Disable(USB_INT_RXSTPI);
 217
 218         GlobalInterruptEnable();
 219
 220         USB_Device_ProcessControlRequest();
 221
 222         Endpoint_SelectEndpoint(ENDPOINT_CONTROLEP);
 223         USB_INT_Enable(USB_INT_RXSTPI);
 224         Endpoint_SelectEndpoint(PrevSelectedEndpoint);
 225 }
 226 #endif
 227
 228 #endif