LUFA/Drivers/Peripheral/XMEGA/Serial_XMEGA.c

   1 /*
   2              LUFA Library
   3      Copyright (C) Dean Camera, 2013.
   4
   5   dean [at] fourwalledcubicle [dot] com
   6            www.lufa-lib.org
   7 */
   8
   9 /*
  10   Copyright 2013  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_XMEGA)
  33
  34 #define  __INCLUDE_FROM_SERIAL_C
  35 #include "../Serial.h"
  36
  37 FILE USARTSerialStream;
  38
  39 int Serial_putchar(char DataByte,
  40                    FILE *Stream)
  41 {
  42         USART_t* USART = fdev_get_udata(Stream);
  43
  44         Serial_SendByte(USART, DataByte);
  45         return 0;
  46 }
  47
  48 int Serial_getchar(FILE *Stream)
  49 {
  50         USART_t* USART = fdev_get_udata(Stream);
  51
  52         if (!(Serial_IsCharReceived(USART)))
  53           return _FDEV_EOF;
  54
  55         return Serial_ReceiveByte(USART);
  56 }
  57
  58 int Serial_getchar_Blocking(FILE *Stream)
  59 {
  60         USART_t* USART = fdev_get_udata(Stream);
  61
  62         while (!(Serial_IsCharReceived(USART)));
  63         return Serial_ReceiveByte(USART);
  64 }
  65
  66 void Serial_SendString_P(USART_t* const USART,
  67                          const char* FlashStringPtr)
  68 {
  69         uint8_t CurrByte;
  70
  71         while ((CurrByte = pgm_read_byte(FlashStringPtr)) != 0x00)
  72         {
  73                 Serial_SendByte(USART, CurrByte);
  74                 FlashStringPtr++;
  75         }
  76 }
  77
  78 void Serial_SendString(USART_t* const USART,
  79                        const char* StringPtr)
  80 {
  81         uint8_t CurrByte;
  82
  83         while ((CurrByte = *StringPtr) != 0x00)
  84         {
  85                 Serial_SendByte(USART, CurrByte);
  86                 StringPtr++;
  87         }
  88 }
  89
  90 void Serial_SendData(USART_t* const USART,
  91                      const uint8_t* Buffer,
  92                      uint16_t Length)
  93 {
  94         while (Length--)
  95           Serial_SendByte(USART, *(Buffer++));
  96 }
  97
  98 void Serial_CreateStream(FILE* Stream)
  99 {
 100         if (!(Stream))
 101         {
 102                 Stream = &USARTSerialStream;
 103                 stdin  = Stream;
 104                 stdout = Stream;
 105         }
 106
 107         *Stream = (FILE)FDEV_SETUP_STREAM(Serial_putchar, Serial_getchar, _FDEV_SETUP_RW);
 108 }
 109
 110 void Serial_CreateBlockingStream(FILE* Stream)
 111 {
 112         if (!(Stream))
 113         {
 114                 Stream = &USARTSerialStream;
 115                 stdin  = Stream;
 116                 stdout = Stream;
 117         }
 118
 119         *Stream = (FILE)FDEV_SETUP_STREAM(Serial_putchar, Serial_getchar_Blocking, _FDEV_SETUP_RW);
 120 }
 121
 122 #endif