protocol/lufa/LUFA-120730/LUFA/Drivers/USB/Core/XMEGA/USBInterrupt_XMEGA.h

   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 /** \file
  32  *  \brief USB Controller Interrupt definitions for the AVR XMEGA microcontrollers.
  33  *
  34  *  This file contains definitions required for the correct handling of low level USB service routine interrupts
  35  *  from the USB controller.
  36  *
  37  *  \note This file should not be included directly. It is automatically included as needed by the USB driver
  38  *        dispatch header located in LUFA/Drivers/USB/USB.h.
  39  */
  40
  41 #ifndef __USBINTERRUPT_XMEGA_H__
  42 #define __USBINTERRUPT_XMEGA_H__
  43
  44         /* Includes: */
  45                 #include "../../../../Common/Common.h"
  46
  47         /* Enable C linkage for C++ Compilers: */
  48                 #if defined(__cplusplus)
  49                         extern "C" {
  50                 #endif
  51
  52         /* Preprocessor Checks: */
  53                 #if !defined(__INCLUDE_FROM_USB_DRIVER)
  54                         #error Do not include this file directly. Include LUFA/Drivers/USB/USB.h instead.
  55                 #endif
  56
  57         /* Private Interface - For use in library only: */
  58         #if !defined(__DOXYGEN__)
  59                 /* Enums: */
  60                         enum USB_Interrupts_t
  61                         {
  62                                 USB_INT_BUSEVENTI         = 1,
  63                                 USB_INT_BUSEVENTI_Suspend = 2,
  64                                 USB_INT_BUSEVENTI_Resume  = 3,
  65                                 USB_INT_BUSEVENTI_Reset   = 4,
  66                                 USB_INT_SOFI              = 5,
  67                         };
  68
  69                 /* Inline Functions: */
  70                         static inline void USB_INT_Enable(const uint8_t Interrupt) ATTR_ALWAYS_INLINE;
  71                         static inline void USB_INT_Enable(const uint8_t Interrupt)
  72                         {
  73                                 switch (Interrupt)
  74                                 {
  75                                         case USB_INT_BUSEVENTI:
  76                                                 USB.INTCTRLA |= USB_BUSEVIE_bm;
  77                                                 return;
  78                                         case USB_INT_SOFI:
  79                                                 USB.INTCTRLA |= USB_SOFIE_bm;
  80                                                 return;
  81                                 }
  82                         }
  83
  84                         static inline void USB_INT_Disable(const uint8_t Interrupt) ATTR_ALWAYS_INLINE;
  85                         static inline void USB_INT_Disable(const uint8_t Interrupt)
  86                         {
  87                                 switch (Interrupt)
  88                                 {
  89                                         case USB_INT_BUSEVENTI:
  90                                                 USB.INTCTRLA &= ~USB_BUSEVIE_bm;
  91                                                 return;
  92                                         case USB_INT_SOFI:
  93                                                 USB.INTCTRLA &= ~USB_SOFIE_bm;
  94                                                 return;
  95                                 }
  96                         }
  97
  98                         static inline void USB_INT_Clear(const uint8_t Interrupt) ATTR_ALWAYS_INLINE;
  99                         static inline void USB_INT_Clear(const uint8_t Interrupt)
 100                         {
 101                                 switch (Interrupt)
 102                                 {
 103                                         case USB_INT_BUSEVENTI_Suspend:
 104                                                 USB.INTFLAGSACLR = USB_SUSPENDIF_bm;
 105                                                 return;
 106                                         case USB_INT_BUSEVENTI_Resume:
 107                                                 USB.INTFLAGSACLR = USB_RESUMEIF_bm;
 108                                                 return;
 109                                         case USB_INT_BUSEVENTI_Reset:
 110                                                 USB.INTFLAGSACLR = USB_RSTIF_bm;
 111                                                 return;
 112                                         case USB_INT_SOFI:
 113                                                 USB.INTFLAGSACLR = USB_SOFIF_bm;
 114                                                 return;
 115                                 }
 116                         }
 117
 118                         static inline bool USB_INT_IsEnabled(const uint8_t Interrupt) ATTR_ALWAYS_INLINE ATTR_WARN_UNUSED_RESULT;
 119                         static inline bool USB_INT_IsEnabled(const uint8_t Interrupt)
 120                         {
 121                                 switch (Interrupt)
 122                                 {
 123                                         case USB_INT_BUSEVENTI:
 124                                                 return ((USB.INTCTRLA & USB_BUSEVIE_bm) ? true : false);
 125                                         case USB_INT_SOFI:
 126                                                 return ((USB.INTCTRLA & USB_SOFIE_bm) ? true : false);
 127                                 }
 128
 129                                 return false;
 130                         }
 131
 132                         static inline bool USB_INT_HasOccurred(const uint8_t Interrupt) ATTR_ALWAYS_INLINE ATTR_WARN_UNUSED_RESULT;
 133                         static inline bool USB_INT_HasOccurred(const uint8_t Interrupt)
 134                         {
 135                                 switch (Interrupt)
 136                                 {
 137                                         case USB_INT_BUSEVENTI_Suspend:
 138                                                 return ((USB.INTFLAGSACLR & USB_SUSPENDIF_bm) ? true : false);
 139                                         case USB_INT_BUSEVENTI_Resume:
 140                                                 return ((USB.INTFLAGSACLR & USB_RESUMEIF_bm) ? true : false);
 141                                         case USB_INT_BUSEVENTI_Reset:
 142                                                 return ((USB.INTFLAGSACLR & USB_RSTIF_bm) ? true : false);
 143                                         case USB_INT_SOFI:
 144                                                 return ((USB.INTFLAGSACLR & USB_SOFIF_bm) ? true : false);
 145                                 }
 146
 147                                 return false;
 148                         }
 149
 150                 /* Includes: */
 151                         #include "../USBMode.h"
 152                         #include "../Events.h"
 153                         #include "../USBController.h"
 154
 155                 /* Function Prototypes: */
 156                         void USB_INT_ClearAllInterrupts(void);
 157                         void USB_INT_DisableAllInterrupts(void);
 158         #endif
 159
 160         /* Disable C linkage for C++ Compilers: */
 161                 #if defined(__cplusplus)
 162                         }
 163                 #endif
 164
 165 #endif
 166