usart.c

Included Files

#include <nut/include/compiler.h>

#include <stdlib.h>

#include </usr/avr/include/string.h>

#include <nut/include/sys/atom.h>

#include <nut/include/sys/heap.h>

#include <nut/include/sys/event.h>

#include <nut/include/sys/timer.h>

#include <nut/include/dev/irqreg.h>

#include <nut/include/dev/usart.h>

#include <nut/include/fcntl.h>

Preprocessor definitions

#define _IOFBF 0x00

#define _IOLBF 0x01

#define _IONBF 0x02

Global Function UsartClose()

int UsartClose ( NUTFILE* fp )

Prototyped in:	nut/include/dev/usart.h
Calls:	UsartResetBuffer()	nut/dev/usart.c
	free()

Global Function UsartIOCtl()

int UsartIOCtl ( NUTDEVICE* dev, int req, void* conf )

Prototyped in:	nut/include/dev/usart.h
Calls:	UsartResetBuffer()	nut/dev/usart.c

Global Function UsartInit()

int UsartInit ( NUTDEVICE* dev )

Prototyped in:

nut/include/dev/usart.h

Global Function UsartOpen()

NUTFILE* UsartOpen ( NUTDEVICE* dev, const char* name, int mode, int acc )

Prototyped in:	nut/include/dev/usart.h
Calls:	UsartResetBuffer()	nut/dev/usart.c
	free(), malloc()

Global Function UsartRead()

int UsartRead ( NUTFILE* fp, void* buffer, int size )

Prototyped in:	nut/include/dev/usart.h
Calls:	NutEventWait()	nut/os/event.c
	UsartResetBuffer()	nut/dev/usart.c

Global Function UsartSize()

long UsartSize ( NUTFILE* fp )

Prototyped in:

nut/include/dev/usart.h

Global Function UsartWrite()

int UsartWrite ( NUTFILE* fp, const void* buffer, int len )

Prototyped in:	nut/include/dev/usart.h
Calls:	UsartPut()	nut/dev/usart.c

Global Function UsartWrite_P()

int UsartWrite_P ( NUTFILE* fp, const prog_char* buffer, int len )

Prototyped in:	nut/include/dev/usart.h
Calls:	UsartPut()	nut/dev/usart.c

Local Function UsartFlushOutput()

static size_t UsartFlushOutput ( USARTDCB* dcb, size_t added, size_t left )

Calls:	NutEventWait()	nut/os/event.c
Called by:	UsartPut()	nut/dev/usart.c

Local Function UsartPut()

static int UsartPut ( NUTDEVICE* dev, const void* buffer, int len, int pflg )

Calls:	UsartFlushOutput()	nut/dev/usart.c
Called by:	UsartWrite()	nut/dev/usart.c
	UsartWrite_P()	nut/dev/usart.c

Local Function UsartResetBuffer()

static int UsartResetBuffer ( RINGBUF* rbf, size_t size, size_t lowm, size_t hiwm )

Calls:	free(), malloc()
Called by:	UsartClose()	nut/dev/usart.c
	UsartIOCtl()	nut/dev/usart.c
	UsartOpen()	nut/dev/usart.c
	UsartRead()	nut/dev/usart.c