LUFA/Drivers/USB/LowLevel/DevChapter9.h

   1 /*
   2              LUFA Library
   3      Copyright (C) Dean Camera, 2009.
   4
   5   dean [at] fourwalledcubicle [dot] com
   6       www.fourwalledcubicle.com
   7 */
   8
   9 /*
  10   Copyright 2009  Dean Camera (dean [at] fourwalledcubicle [dot] com)
  11
  12   Permission to use, copy, modify, and distribute this software
  13   and its documentation for any purpose and without fee is hereby
  14   granted, provided that the above copyright notice appear in all
  15   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 #ifndef __DEVCHAPTER9_H__
  32 #define __DEVCHAPTER9_H__
  33
  34         /* Includes: */
  35                 #include <avr/io.h>
  36                 #include <avr/pgmspace.h>
  37                 #include <avr/eeprom.h>
  38                 #include <avr/boot.h>
  39                 #include <stdlib.h>
  40                 #include <ctype.h>
  41
  42                 #include "../HighLevel/StdDescriptors.h"
  43                 #include "../HighLevel/Events.h"
  44                 #include "../HighLevel/StdRequestType.h"
  45                 #include "../HighLevel/USBTask.h"
  46                 #include "LowLevel.h"
  47
  48         /* Enable C linkage for C++ Compilers: */
  49                 #if defined(__cplusplus)
  50                         extern "C" {
  51                 #endif
  52
  53         /* Public Interface - May be used in end-application: */
  54                 /* Global Variables: */
  55                         /** Indicates the currently set configuration number of the device. USB devices may have several
  56                          *  different configurations which the host can select between; this indicates the currently selected
  57                          *  value, or 0 if no configuration has been selected.
  58                          *
  59                          *  If a device has only one single configuration, the token USE_SINGLE_DEVICE_CONFIGURATION may be
  60                          *  defined in the project makefile and passed to the compiler using the -D switch. This optimize for
  61                          *  a single configuration, saving a small amount of space in the resulting compiled binary.
  62                          *
  63                          *  \note This variable should be treated as read-only in the user application, and never manually
  64                          *        changed in value.
  65                          *
  66                          *  \ingroup Group_Device
  67                          */
  68                         extern uint8_t USB_ConfigurationNumber;
  69
  70                         /** Indicates if the host is currently allowing the device to issue remote wakeup events. If this
  71                          *  flag is cleared, the device should not issue remote wakeup events to the host.
  72                          *
  73                          *  \note This variable should be treated as read-only in the user application, and never manually
  74                          *        changed in value.
  75                          *
  76                          *  \ingroup Group_Device
  77                          */
  78                         extern bool USB_RemoteWakeupEnabled;
  79
  80                         /** Indicates if the device is currently being powered by its own power supply, rather than being
  81                          *  powered by the host's USB supply. This flag should remain cleared if the device does not
  82                          *  support self powered mode, as indicated in the device descriptors.
  83                          *
  84                          *  \ingroup Group_Device
  85                          */
  86                         extern bool USB_CurrentlySelfPowered;
  87
  88         /* Private Interface - For use in library only: */
  89         #if !defined(__DOXYGEN__)
  90                 #if defined(USE_RAM_DESCRIPTORS) && defined(USE_EEPROM_DESCRIPTORS)
  91                         #error USE_RAM_DESCRIPTORS and USE_EEPROM_DESCRIPTORS are mutually exclusive.
  92                 #endif
  93
  94                 /* Function Prototypes: */
  95                         void USB_Device_ProcessControlPacket(void);
  96
  97                         #if defined(INCLUDE_FROM_DEVCHAPTER9_C)
  98                                 static void USB_Device_SetAddress(void);
  99                                 static void USB_Device_SetConfiguration(void);
 100                                 static void USB_Device_GetConfiguration(void);
 101                                 static void USB_Device_GetDescriptor(void);
 102                                 static void USB_Device_GetStatus(void);
 103                                 static void USB_Device_ClearSetFeature(void);
 104                         #endif
 105         #endif
 106
 107         /* Disable C linkage for C++ Compilers: */
 108                 #if defined(__cplusplus)
 109                         }
 110                 #endif
 111
 112 #endif