teensy-cores/teensy3/HardwareSerial.h

/* Teensyduino Core Library
 * http://www.pjrc.com/teensy/
 * Copyright (c) 2013 PJRC.COM, LLC.
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * 1. The above copyright notice and this permission notice shall be 
 * included in all copies or substantial portions of the Software.
 *
 * 2. If the Software is incorporated into a build system that allows 
 * selection among a list of target devices, then similar target
 * devices manufactured by PJRC.COM must be included in the list of
 * target devices and selectable in the same manner.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

#ifndef HardwareSerial_h
#define HardwareSerial_h

#include "mk20dx128.h"
#include <inttypes.h>

#define BAUD2DIV(baud)  (((F_CPU * 2) + ((baud) >> 1)) / (baud))
#define BAUD2DIV3(baud) (((F_BUS * 2) + ((baud) >> 1)) / (baud))

// C language implementation
//
#ifdef __cplusplus
extern "C" {
#endif
void serial_begin(uint32_t divisor);
void serial_end(void);
void serial_putchar(uint8_t c);
void serial_write(const void *buf, unsigned int count);
void serial_flush(void);
int serial_available(void);
int serial_getchar(void);
int serial_peek(void);
void serial_clear(void);
void serial_print(const char *p);
void serial_phex(uint32_t n);
void serial_phex16(uint32_t n);
void serial_phex32(uint32_t n);

void serial2_begin(uint32_t divisor);
void serial2_end(void);
void serial2_putchar(uint8_t c);
void serial2_write(const void *buf, unsigned int count);
void serial2_flush(void);
int serial2_available(void);
int serial2_getchar(void);
int serial2_peek(void);
void serial2_clear(void);

void serial3_begin(uint32_t divisor);
void serial3_end(void);
void serial3_putchar(uint8_t c);
void serial3_write(const void *buf, unsigned int count);
void serial3_flush(void);
int serial3_available(void);
int serial3_getchar(void);
int serial3_peek(void);
void serial3_clear(void);

#ifdef __cplusplus
}
#endif


// C++ interface
//
#ifdef __cplusplus
#include "Stream.h"
class HardwareSerial : public Stream
{
public:
	void begin(uint32_t baud)       { serial_begin(BAUD2DIV(baud)); }
	void end(void)                  { serial_end(); }
	virtual int available(void)     { return serial_available(); }
	virtual int peek(void)          { return serial_peek(); }
	virtual int read(void)          { return serial_getchar(); }
	virtual void flush(void)        { serial_flush(); }
	void clear(void)                { serial_clear(); }
	virtual size_t write(uint8_t c) { serial_putchar(c); return 1; }
	size_t write(unsigned long n)   { return write((uint8_t)n); }
	size_t write(long n)            { return write((uint8_t)n); }
	size_t write(unsigned int n)    { return write((uint8_t)n); }
	size_t write(int n)             { return write((uint8_t)n); }
	virtual size_t write(const uint8_t *buffer, size_t size)
					{ serial_write(buffer, size); return size; }
        size_t write(const char *str)	{ size_t len = strlen(str);
					  serial_write((const uint8_t *)str, len);
					  return len; }
};
extern HardwareSerial Serial1;

class HardwareSerial2 : public HardwareSerial
{
public:
	void begin(uint32_t baud)       { serial2_begin(BAUD2DIV(baud)); }
	void end(void)                  { serial2_end(); }
	virtual int available(void)     { return serial2_available(); }
	virtual int peek(void)          { return serial2_peek(); }
	virtual int read(void)          { return serial2_getchar(); }
	virtual void flush(void)        { serial2_flush(); }
	void clear(void)                { serial2_clear(); }
	virtual size_t write(uint8_t c) { serial2_putchar(c); return 1; }
	size_t write(unsigned long n)   { return write((uint8_t)n); }
	size_t write(long n)            { return write((uint8_t)n); }
	size_t write(unsigned int n)    { return write((uint8_t)n); }
	size_t write(int n)             { return write((uint8_t)n); }
	virtual size_t write(const uint8_t *buffer, size_t size)
					{ serial2_write(buffer, size); return size; }
        size_t write(const char *str)	{ size_t len = strlen(str);
					  serial2_write((const uint8_t *)str, len);
					  return len; }
};
extern HardwareSerial2 Serial2;

class HardwareSerial3 : public HardwareSerial
{
public:
	void begin(uint32_t baud)       { serial3_begin(BAUD2DIV3(baud)); }
	void end(void)                  { serial3_end(); }
	virtual int available(void)     { return serial3_available(); }
	virtual int peek(void)          { return serial3_peek(); }
	virtual int read(void)          { return serial3_getchar(); }
	virtual void flush(void)        { serial3_flush(); }
	void clear(void)                { serial3_clear(); }
	virtual size_t write(uint8_t c) { serial3_putchar(c); return 1; }
	size_t write(unsigned long n)   { return write((uint8_t)n); }
	size_t write(long n)            { return write((uint8_t)n); }
	size_t write(unsigned int n)    { return write((uint8_t)n); }
	size_t write(int n)             { return write((uint8_t)n); }
	virtual size_t write(const uint8_t *buffer, size_t size)
					{ serial3_write(buffer, size); return size; }
        size_t write(const char *str)	{ size_t len = strlen(str);
					  serial3_write((const uint8_t *)str, len);
					  return len; }
};
extern HardwareSerial3 Serial3;

#endif
#endif