LUFA/Drivers/USB/Core/UC3B/USBInterrupt_UC3B.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         #if defined(USB_SERIES_6_AVR) || defined(USB_SERIES_7_AVR)
  37         USBCON &= ~((1 << VBUSTE) | (1 << IDTE));
  38         #elif defined(USB_SERIES_4_AVR)
  39         USBCON &= ~(1 << VBUSTE);
  40         #endif
  41
  42         #if defined(USB_CAN_BE_BOTH)
  43         OTGIEN  = 0;
  44         #endif
  45
  46         #if defined(USB_CAN_BE_HOST)
  47         UHIEN   = 0;
  48         #endif
  49
  50         #if defined(USB_CAN_BE_DEVICE)
  51         UDIEN   = 0;
  52         #endif
  53 }
  54
  55 void USB_INT_ClearAllInterrupts(void)
  56 {
  57         #if defined(USB_SERIES_4_AVR) || defined(USB_SERIES_6_AVR) || defined(USB_SERIES_7_AVR)
  58         USBINT = 0;
  59         #endif
  60
  61         #if defined(USB_CAN_BE_BOTH)
  62         OTGINT = 0;
  63         #endif
  64
  65         #if defined(USB_CAN_BE_HOST)
  66         UHINT  = 0;
  67         #endif
  68
  69         #if defined(USB_CAN_BE_DEVICE)
  70         UDINT  = 0;
  71         #endif
  72 }
  73
  74 ISR(USB_GEN_vect, ISR_BLOCK)
  75 {
  76         #if defined(USB_CAN_BE_DEVICE)
  77         #if !defined(NO_SOF_EVENTS)
  78         if (USB_INT_HasOccurred(USB_INT_SOFI) && USB_INT_IsEnabled(USB_INT_SOFI))
  79         {
  80                 USB_INT_Clear(USB_INT_SOFI);
  81
  82                 EVENT_USB_Device_StartOfFrame();
  83         }
  84         #endif
  85
  86         #if defined(USB_SERIES_4_AVR) || defined(USB_SERIES_6_AVR) || defined(USB_SERIES_7_AVR)
  87         if (USB_INT_HasOccurred(USB_INT_VBUS) && USB_INT_IsEnabled(USB_INT_VBUS))
  88         {
  89                 USB_INT_Clear(USB_INT_VBUS);
  90
  91                 if (USB_VBUS_GetStatus())
  92                 {
  93                         USB_DeviceState = DEVICE_STATE_Powered;
  94                         EVENT_USB_Device_Connect();
  95                 }
  96                 else
  97                 {
  98                         USB_DeviceState = DEVICE_STATE_Unattached;
  99                         EVENT_USB_Device_Disconnect();
 100                 }
 101         }
 102         #endif
 103
 104         if (USB_INT_HasOccurred(USB_INT_SUSPI) && USB_INT_IsEnabled(USB_INT_SUSPI))
 105         {
 106                 USB_INT_Clear(USB_INT_SUSPI);
 107
 108                 USB_INT_Disable(USB_INT_SUSPI);
 109                 USB_INT_Enable(USB_INT_WAKEUPI);
 110
 111                 USB_CLK_Freeze();
 112
 113                 if (!(USB_Options & USB_OPT_MANUAL_PLL))
 114                   USB_PLL_Off();
 115
 116                 #if defined(USB_SERIES_2_AVR) && !defined(NO_LIMITED_CONTROLLER_CONNECT)
 117                 USB_DeviceState = DEVICE_STATE_Unattached;
 118                 EVENT_USB_Device_Disconnect();
 119                 #else
 120                 USB_DeviceState = DEVICE_STATE_Suspended;
 121                 EVENT_USB_Device_Suspend();
 122                 #endif
 123         }
 124
 125         if (USB_INT_HasOccurred(USB_INT_WAKEUPI) && USB_INT_IsEnabled(USB_INT_WAKEUPI))
 126         {
 127                 if (!(USB_Options & USB_OPT_MANUAL_PLL))
 128                 {
 129                         USB_PLL_On();
 130                         while (!(USB_PLL_IsReady()));
 131                 }
 132
 133                 USB_CLK_Unfreeze();
 134
 135                 USB_INT_Clear(USB_INT_WAKEUPI);
 136
 137                 USB_INT_Disable(USB_INT_WAKEUPI);
 138                 USB_INT_Enable(USB_INT_SUSPI);
 139
 140                 if (USB_ConfigurationNumber)
 141                   USB_DeviceState = DEVICE_STATE_Configured;
 142                 else
 143                   USB_DeviceState = (USB_Device_IsAddressSet()) ? DEVICE_STATE_Configured : DEVICE_STATE_Powered;
 144
 145                 #if defined(USB_SERIES_2_AVR) && !defined(NO_LIMITED_CONTROLLER_CONNECT)
 146                 EVENT_USB_Device_Connect();
 147                 #else
 148                 EVENT_USB_Device_WakeUp();
 149                 #endif
 150         }
 151
 152         if (USB_INT_HasOccurred(USB_INT_EORSTI) && USB_INT_IsEnabled(USB_INT_EORSTI))
 153         {
 154                 USB_INT_Clear(USB_INT_EORSTI);
 155
 156                 USB_DeviceState         = DEVICE_STATE_Default;
 157                 USB_ConfigurationNumber = 0;
 158
 159                 USB_INT_Clear(USB_INT_SUSPI);
 160                 USB_INT_Disable(USB_INT_SUSPI);
 161                 USB_INT_Enable(USB_INT_WAKEUPI);
 162
 163                 Endpoint_ConfigureEndpoint(ENDPOINT_CONTROLEP, EP_TYPE_CONTROL,
 164                                            ENDPOINT_DIR_OUT, USB_ControlEndpointSize,
 165                                            ENDPOINT_BANK_SINGLE);
 166
 167                 EVENT_USB_Device_Reset();
 168         }
 169         #endif
 170
 171         #if defined(USB_CAN_BE_HOST)
 172         #if !defined(NO_SOF_EVENTS)
 173         if (USB_INT_HasOccurred(USB_INT_HSOFI) && USB_INT_IsEnabled(USB_INT_HSOFI))
 174         {
 175                 USB_INT_Clear(USB_INT_HSOFI);
 176
 177                 EVENT_USB_Host_StartOfFrame();
 178         }
 179         #endif
 180
 181         if (USB_INT_HasOccurred(USB_INT_DDISCI) && USB_INT_IsEnabled(USB_INT_DDISCI))
 182         {
 183                 USB_INT_Clear(USB_INT_DDISCI);
 184                 USB_INT_Clear(USB_INT_DCONNI);
 185                 USB_INT_Disable(USB_INT_DDISCI);
 186
 187                 EVENT_USB_Host_DeviceUnattached();
 188
 189                 USB_ResetInterface();
 190         }
 191
 192         if (USB_INT_HasOccurred(USB_INT_VBERRI) && USB_INT_IsEnabled(USB_INT_VBERRI))
 193         {
 194                 USB_INT_Clear(USB_INT_VBERRI);
 195
 196                 USB_Host_VBUS_Manual_Off();
 197                 USB_Host_VBUS_Auto_Off();
 198
 199                 EVENT_USB_Host_HostError(HOST_ERROR_VBusVoltageDip);
 200                 EVENT_USB_Host_DeviceUnattached();
 201
 202                 USB_HostState = HOST_STATE_Unattached;
 203         }
 204
 205         if (USB_INT_HasOccurred(USB_INT_SRPI) && USB_INT_IsEnabled(USB_INT_SRPI))
 206         {
 207                 USB_INT_Clear(USB_INT_SRPI);
 208                 USB_INT_Disable(USB_INT_SRPI);
 209
 210                 EVENT_USB_Host_DeviceAttached();
 211
 212                 USB_INT_Enable(USB_INT_DDISCI);
 213
 214                 USB_HostState = HOST_STATE_Powered;
 215         }
 216
 217         if (USB_INT_HasOccurred(USB_INT_BCERRI) && USB_INT_IsEnabled(USB_INT_BCERRI))
 218         {
 219                 USB_INT_Clear(USB_INT_BCERRI);
 220
 221                 EVENT_USB_Host_DeviceEnumerationFailed(HOST_ENUMERROR_NoDeviceDetected, 0);
 222                 EVENT_USB_Host_DeviceUnattached();
 223
 224                 USB_ResetInterface();
 225         }
 226         #endif
 227
 228         #if defined(USB_CAN_BE_BOTH)
 229         if (USB_INT_HasOccurred(USB_INT_IDTI) && USB_INT_IsEnabled(USB_INT_IDTI))
 230         {
 231                 USB_INT_Clear(USB_INT_IDTI);
 232
 233                 if (USB_DeviceState != DEVICE_STATE_Unattached)
 234                   EVENT_USB_Device_Disconnect();
 235
 236                 if (USB_HostState != HOST_STATE_Unattached)
 237                   EVENT_USB_Host_DeviceUnattached();
 238
 239                 USB_CurrentMode = USB_GetUSBModeFromUID();
 240                 USB_ResetInterface();
 241
 242                 EVENT_USB_UIDChange();
 243         }
 244         #endif
 245 }