circuitpython/teensy/core/HardwareSerial.h

228 lines
8.2 KiB
C++

/* 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>
// uncomment to enable 9 bit formats
//#define SERIAL_9BIT_SUPPORT
#define SERIAL_7E1 0x02
#define SERIAL_7O1 0x03
#define SERIAL_8N1 0x00
#define SERIAL_8N2 0x04
#define SERIAL_8E1 0x06
#define SERIAL_8O1 0x07
#define SERIAL_7E1_RXINV 0x12
#define SERIAL_7O1_RXINV 0x13
#define SERIAL_8N1_RXINV 0x10
#define SERIAL_8N2_RXINV 0x14
#define SERIAL_8E1_RXINV 0x16
#define SERIAL_8O1_RXINV 0x17
#define SERIAL_7E1_TXINV 0x22
#define SERIAL_7O1_TXINV 0x23
#define SERIAL_8N1_TXINV 0x20
#define SERIAL_8N2_TXINV 0x24
#define SERIAL_8E1_TXINV 0x26
#define SERIAL_8O1_TXINV 0x27
#define SERIAL_7E1_RXINV_TXINV 0x32
#define SERIAL_7O1_RXINV_TXINV 0x33
#define SERIAL_8N1_RXINV_TXINV 0x30
#define SERIAL_8N2_RXINV_TXINV 0x34
#define SERIAL_8E1_RXINV_TXINV 0x36
#define SERIAL_8O1_RXINV_TXINV 0x37
#ifdef SERIAL_9BIT_SUPPORT
#define SERIAL_9N1 0x84
#define SERIAL_9E1 0x8E
#define SERIAL_9O1 0x8F
#define SERIAL_9N1_RXINV 0x94
#define SERIAL_9E1_RXINV 0x9E
#define SERIAL_9O1_RXINV 0x9F
#define SERIAL_9N1_TXINV 0xA4
#define SERIAL_9E1_TXINV 0xAE
#define SERIAL_9O1_TXINV 0xAF
#define SERIAL_9N1_RXINV_TXINV 0xB4
#define SERIAL_9E1_RXINV_TXINV 0xBE
#define SERIAL_9O1_RXINV_TXINV 0xBF
#endif
// bit0: parity, 0=even, 1=odd
// bit1: parity, 0=disable, 1=enable
// bit2: mode, 1=9bit, 0=8bit
// bit3: mode10: 1=10bit, 0=8bit
// bit4: rxinv, 0=normal, 1=inverted
// bit5: txinv, 0=normal, 1=inverted
// bit6: unused
// bit7: actual data goes into 9th bit
#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_format(uint32_t format);
void serial_end(void);
void serial_set_transmit_pin(uint8_t pin);
void serial_putchar(uint32_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_format(uint32_t format);
void serial2_end(void);
void serial2_putchar(uint32_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_format(uint32_t format);
void serial3_end(void);
void serial3_putchar(uint32_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:
virtual void begin(uint32_t baud) { serial_begin(BAUD2DIV(baud)); }
virtual void begin(uint32_t baud, uint32_t format) {
serial_begin(BAUD2DIV(baud));
serial_format(format); }
virtual void end(void) { serial_end(); }
virtual void transmitterEnable(uint8_t pin) { serial_set_transmit_pin(pin); }
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(); }
virtual void clear(void) { serial_clear(); }
virtual size_t write(uint8_t c) { serial_putchar(c); return 1; }
virtual size_t write(unsigned long n) { return write((uint8_t)n); }
virtual size_t write(long n) { return write((uint8_t)n); }
virtual size_t write(unsigned int n) { return write((uint8_t)n); }
virtual 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; }
virtual size_t write(const char *str) { size_t len = strlen(str);
serial_write((const uint8_t *)str, len);
return len; }
virtual size_t write9bit(uint32_t c) { serial_putchar(c); return 1; }
};
extern HardwareSerial Serial1;
class HardwareSerial2 : public HardwareSerial
{
public:
virtual void begin(uint32_t baud) { serial2_begin(BAUD2DIV(baud)); }
virtual void begin(uint32_t baud, uint32_t format) {
serial2_begin(BAUD2DIV(baud));
serial2_format(format); }
virtual 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(); }
virtual void clear(void) { serial2_clear(); }
virtual size_t write(uint8_t c) { serial2_putchar(c); return 1; }
virtual size_t write(unsigned long n) { return write((uint8_t)n); }
virtual size_t write(long n) { return write((uint8_t)n); }
virtual size_t write(unsigned int n) { return write((uint8_t)n); }
virtual 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; }
virtual size_t write(const char *str) { size_t len = strlen(str);
serial2_write((const uint8_t *)str, len);
return len; }
virtual size_t write9bit(uint32_t c) { serial2_putchar(c); return 1; }
};
extern HardwareSerial2 Serial2;
class HardwareSerial3 : public HardwareSerial
{
public:
virtual void begin(uint32_t baud) { serial3_begin(BAUD2DIV3(baud)); }
virtual void begin(uint32_t baud, uint32_t format) {
serial3_begin(BAUD2DIV3(baud));
serial3_format(format); }
virtual 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(); }
virtual void clear(void) { serial3_clear(); }
virtual size_t write(uint8_t c) { serial3_putchar(c); return 1; }
virtual size_t write(unsigned long n) { return write((uint8_t)n); }
virtual size_t write(long n) { return write((uint8_t)n); }
virtual size_t write(unsigned int n) { return write((uint8_t)n); }
virtual 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; }
virtual size_t write(const char *str) { size_t len = strlen(str);
serial3_write((const uint8_t *)str, len);
return len; }
virtual size_t write9bit(uint32_t c) { serial3_putchar(c); return 1; }
};
extern HardwareSerial3 Serial3;
#endif
#endif