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 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 /** \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                                                 break;
  78                                         case USB_INT_SOFI:
  79                                                 USB.INTCTRLA |= USB_SOFIE_bm;
  80                                                 break;
  81                                         default:
  82                                                 break;
  83                                 }
  84                         }
  85
  86                         static inline void USB_INT_Disable(const uint8_t Interrupt) ATTR_ALWAYS_INLINE;
  87                         static inline void USB_INT_Disable(const uint8_t Interrupt)
  88                         {
  89                                 switch (Interrupt)
  90                                 {
  91                                         case USB_INT_BUSEVENTI:
  92                                                 USB.INTCTRLA &= ~USB_BUSEVIE_bm;
  93                                                 break;
  94                                         case USB_INT_SOFI:
  95                                                 USB.INTCTRLA &= ~USB_SOFIE_bm;
  96                                                 break;
  97                                         default:
  98                                                 break;
  99                                 }
 100                         }
 101
 102                         static inline void USB_INT_Clear(const uint8_t Interrupt) ATTR_ALWAYS_INLINE;
 103                         static inline void USB_INT_Clear(const uint8_t Interrupt)
 104                         {
 105                                 switch (Interrupt)
 106                                 {
 107                                         case USB_INT_BUSEVENTI_Suspend:
 108                                                 USB.INTFLAGSACLR = USB_SUSPENDIF_bm;
 109                                                 break;
 110                                         case USB_INT_BUSEVENTI_Resume:
 111                                                 USB.INTFLAGSACLR = USB_RESUMEIF_bm;
 112                                                 break;
 113                                         case USB_INT_BUSEVENTI_Reset:
 114                                                 USB.INTFLAGSACLR = USB_RSTIF_bm;
 115                                                 break;
 116                                         case USB_INT_SOFI:
 117                                                 USB.INTFLAGSACLR = USB_SOFIF_bm;
 118                                                 break;
 119                                         default:
 120                                                 break;
 121                                 }
 122                         }
 123
 124                         static inline bool USB_INT_IsEnabled(const uint8_t Interrupt) ATTR_ALWAYS_INLINE ATTR_WARN_UNUSED_RESULT;
 125                         static inline bool USB_INT_IsEnabled(const uint8_t Interrupt)
 126                         {
 127                                 switch (Interrupt)
 128                                 {
 129                                         case USB_INT_BUSEVENTI:
 130                                                 return ((USB.INTCTRLA & USB_BUSEVIE_bm) ? true : false);
 131                                         case USB_INT_SOFI:
 132                                                 return ((USB.INTCTRLA & USB_SOFIE_bm) ? true : false);
 133                                         default:
 134                                                 return false;
 135                                 }
 136                         }
 137
 138                         static inline bool USB_INT_HasOccurred(const uint8_t Interrupt) ATTR_ALWAYS_INLINE ATTR_WARN_UNUSED_RESULT;
 139                         static inline bool USB_INT_HasOccurred(const uint8_t Interrupt)
 140                         {
 141                                 switch (Interrupt)
 142                                 {
 143                                         case USB_INT_BUSEVENTI_Suspend:
 144                                                 return ((USB.INTFLAGSACLR & USB_SUSPENDIF_bm) ? true : false);
 145                                         case USB_INT_BUSEVENTI_Resume:
 146                                                 return ((USB.INTFLAGSACLR & USB_RESUMEIF_bm) ? true : false);
 147                                         case USB_INT_BUSEVENTI_Reset:
 148                                                 return ((USB.INTFLAGSACLR & USB_RSTIF_bm) ? true : false);
 149                                         case USB_INT_SOFI:
 150                                                 return ((USB.INTFLAGSACLR & USB_SOFIF_bm) ? true : false);
 151                                         default:
 152                                                 return false;
 153                                 }
 154                         }
 155
 156                 /* Includes: */
 157                         #include "../USBMode.h"
 158                         #include "../Events.h"
 159                         #include "../USBController.h"
 160
 161                 /* Function Prototypes: */
 162                         void USB_INT_ClearAllInterrupts(void);
 163                         void USB_INT_DisableAllInterrupts(void);
 164         #endif
 165
 166         /* Disable C linkage for C++ Compilers: */
 167                 #if defined(__cplusplus)
 168                         }
 169                 #endif
 170
 171 #endif
 172