add arduino folder
This commit is contained in:
parent
de928cd14e
commit
daf2191555
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@ -1,4 +1,4 @@
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CONTIKI_TARGET_DIRS = . dev dev/LED_Strip_Suli apps net loader
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CONTIKI_TARGET_DIRS = . dev dev/LED_Strip_Suli apps net loader dev/arduino
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CONTIKI_CORE=contiki-main
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CONTIKI_TARGET_MAIN = ${CONTIKI_CORE}.o
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@ -8,7 +8,7 @@ CONTIKI_TARGET_SOURCEFILES += temperature-sensor.c adc.c led.c sensors.c slip_ua
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#Needed for Button
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CONTIKI_TARGET_SOURCEFILES += button-sensor.c
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# i2c Master
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CONTIKI_TARGET_SOURCEFILES += i2c.c
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#CONTIKI_TARGET_SOURCEFILES += i2c.c
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#Needed for DHT11 humidity sensor
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CONTIKI_TARGET_SOURCEFILES += dht11.c
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#Needed for DS18S20 temperature sensor
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@ -29,6 +29,8 @@ CONTIKI_TARGET_SOURCEFILES += relay.c relay-sensor.c
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# Arduino
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CONTIKI_TARGET_SOURCEFILES += wiring_digital.c
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CONTIKI_TARGET_SOURCEFILES += LED_Strip_Suli.c
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CONTIKI_TARGET_SOURCEFILES += new.cpp twi.c Wire.cpp WMath.cpp
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CONTIKI_TARGET_SOURCEFILES += Print.cpp Stream.cpp WString.cpp
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SULI_DIR=$(CONTIKI)/platform/$(TARGET)/dev/LED_Strip_Suli
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265
platform/osd-merkur/dev/arduino/Print.cpp
Normal file
265
platform/osd-merkur/dev/arduino/Print.cpp
Normal file
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@ -0,0 +1,265 @@
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/*
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Print.cpp - Base class that provides print() and println()
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Copyright (c) 2008 David A. Mellis. All right reserved.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
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||||
|
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This library is distributed in the hope that it will be useful,
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||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
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||||
License along with this library; if not, write to the Free Software
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||||
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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Modified 23 November 2006 by David A. Mellis
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Modified 03 August 2015 by Chuck Todd
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <math.h>
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#include "Arduino.h"
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#include "Print.h"
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// Public Methods //////////////////////////////////////////////////////////////
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/* default implementation: may be overridden */
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size_t Print::write(const uint8_t *buffer, size_t size)
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{
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size_t n = 0;
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while (size--) {
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if (write(*buffer++)) n++;
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else break;
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}
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return n;
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}
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size_t Print::print(const __FlashStringHelper *ifsh)
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{
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PGM_P p = reinterpret_cast<PGM_P>(ifsh);
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size_t n = 0;
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while (1) {
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unsigned char c = pgm_read_byte(p++);
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if (c == 0) break;
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if (write(c)) n++;
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else break;
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}
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return n;
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}
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size_t Print::print(const String &s)
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{
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return write(s.c_str(), s.length());
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}
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size_t Print::print(const char str[])
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{
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return write(str);
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}
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size_t Print::print(char c)
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{
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return write(c);
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}
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size_t Print::print(unsigned char b, int base)
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{
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return print((unsigned long) b, base);
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}
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size_t Print::print(int n, int base)
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{
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return print((long) n, base);
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}
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size_t Print::print(unsigned int n, int base)
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{
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return print((unsigned long) n, base);
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}
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size_t Print::print(long n, int base)
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{
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if (base == 0) {
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return write(n);
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} else if (base == 10) {
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if (n < 0) {
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int t = print('-');
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n = -n;
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return printNumber(n, 10) + t;
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}
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return printNumber(n, 10);
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} else {
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return printNumber(n, base);
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}
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}
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size_t Print::print(unsigned long n, int base)
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{
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if (base == 0) return write(n);
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else return printNumber(n, base);
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}
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size_t Print::print(double n, int digits)
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{
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return printFloat(n, digits);
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}
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size_t Print::println(const __FlashStringHelper *ifsh)
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{
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size_t n = print(ifsh);
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n += println();
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return n;
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}
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size_t Print::print(const Printable& x)
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{
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return x.printTo(*this);
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}
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size_t Print::println(void)
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{
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return write("\r\n");
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}
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size_t Print::println(const String &s)
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{
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size_t n = print(s);
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n += println();
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return n;
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}
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size_t Print::println(const char c[])
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{
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size_t n = print(c);
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n += println();
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return n;
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}
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size_t Print::println(char c)
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{
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size_t n = print(c);
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n += println();
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return n;
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}
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size_t Print::println(unsigned char b, int base)
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{
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size_t n = print(b, base);
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n += println();
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return n;
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}
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size_t Print::println(int num, int base)
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{
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size_t n = print(num, base);
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n += println();
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return n;
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}
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size_t Print::println(unsigned int num, int base)
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{
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size_t n = print(num, base);
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n += println();
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return n;
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}
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size_t Print::println(long num, int base)
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{
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size_t n = print(num, base);
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n += println();
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return n;
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}
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size_t Print::println(unsigned long num, int base)
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{
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size_t n = print(num, base);
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n += println();
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return n;
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}
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size_t Print::println(double num, int digits)
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{
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size_t n = print(num, digits);
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n += println();
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return n;
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}
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size_t Print::println(const Printable& x)
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{
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size_t n = print(x);
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n += println();
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return n;
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}
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// Private Methods /////////////////////////////////////////////////////////////
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size_t Print::printNumber(unsigned long n, uint8_t base) {
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char buf[8 * sizeof(long) + 1]; // Assumes 8-bit chars plus zero byte.
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char *str = &buf[sizeof(buf) - 1];
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*str = '\0';
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// prevent crash if called with base == 1
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if (base < 2) base = 10;
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do {
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unsigned long m = n;
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n /= base;
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char c = m - base * n;
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*--str = c < 10 ? c + '0' : c + 'A' - 10;
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} while(n);
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return write(str);
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}
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size_t Print::printFloat(double number, uint8_t digits)
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{
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size_t n = 0;
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if (isnan(number)) return print("nan");
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if (isinf(number)) return print("inf");
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if (number > 4294967040.0) return print ("ovf"); // constant determined empirically
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if (number <-4294967040.0) return print ("ovf"); // constant determined empirically
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// Handle negative numbers
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if (number < 0.0)
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{
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n += print('-');
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number = -number;
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}
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// Round correctly so that print(1.999, 2) prints as "2.00"
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double rounding = 0.5;
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for (uint8_t i=0; i<digits; ++i)
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rounding /= 10.0;
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number += rounding;
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// Extract the integer part of the number and print it
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unsigned long int_part = (unsigned long)number;
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double remainder = number - (double)int_part;
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n += print(int_part);
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// Print the decimal point, but only if there are digits beyond
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if (digits > 0) {
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n += print(".");
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}
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// Extract digits from the remainder one at a time
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while (digits-- > 0)
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{
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remainder *= 10.0;
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int toPrint = int(remainder);
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n += print(toPrint);
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remainder -= toPrint;
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}
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return n;
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}
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84
platform/osd-merkur/dev/arduino/Print.h
Normal file
84
platform/osd-merkur/dev/arduino/Print.h
Normal file
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@ -0,0 +1,84 @@
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/*
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Print.h - Base class that provides print() and println()
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||||
Copyright (c) 2008 David A. Mellis. All right reserved.
|
||||
|
||||
This library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
This library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with this library; if not, write to the Free Software
|
||||
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
#ifndef Print_h
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#define Print_h
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#include <inttypes.h>
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#include <stdio.h> // for size_t
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#include "WString.h"
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#include "Printable.h"
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#define DEC 10
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#define HEX 16
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#define OCT 8
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#define BIN 2
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class Print
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{
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private:
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int write_error;
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size_t printNumber(unsigned long, uint8_t);
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size_t printFloat(double, uint8_t);
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protected:
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void setWriteError(int err = 1) { write_error = err; }
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public:
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Print() : write_error(0) {}
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|
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int getWriteError() { return write_error; }
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void clearWriteError() { setWriteError(0); }
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virtual size_t write(uint8_t) = 0;
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||||
size_t write(const char *str) {
|
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if (str == NULL) return 0;
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||||
return write((const uint8_t *)str, strlen(str));
|
||||
}
|
||||
virtual size_t write(const uint8_t *buffer, size_t size);
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size_t write(const char *buffer, size_t size) {
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return write((const uint8_t *)buffer, size);
|
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}
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||||
|
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size_t print(const __FlashStringHelper *);
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size_t print(const String &);
|
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size_t print(const char[]);
|
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size_t print(char);
|
||||
size_t print(unsigned char, int = DEC);
|
||||
size_t print(int, int = DEC);
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size_t print(unsigned int, int = DEC);
|
||||
size_t print(long, int = DEC);
|
||||
size_t print(unsigned long, int = DEC);
|
||||
size_t print(double, int = 2);
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size_t print(const Printable&);
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|
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size_t println(const __FlashStringHelper *);
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size_t println(const String &s);
|
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size_t println(const char[]);
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size_t println(char);
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size_t println(unsigned char, int = DEC);
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size_t println(int, int = DEC);
|
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size_t println(unsigned int, int = DEC);
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size_t println(long, int = DEC);
|
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size_t println(unsigned long, int = DEC);
|
||||
size_t println(double, int = 2);
|
||||
size_t println(const Printable&);
|
||||
size_t println(void);
|
||||
};
|
||||
|
||||
#endif
|
40
platform/osd-merkur/dev/arduino/Printable.h
Normal file
40
platform/osd-merkur/dev/arduino/Printable.h
Normal file
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|
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/*
|
||||
Printable.h - Interface class that allows printing of complex types
|
||||
Copyright (c) 2011 Adrian McEwen. All right reserved.
|
||||
|
||||
This library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
This library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with this library; if not, write to the Free Software
|
||||
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
#ifndef Printable_h
|
||||
#define Printable_h
|
||||
|
||||
#include <stdlib.h>
|
||||
|
||||
class Print;
|
||||
|
||||
/** The Printable class provides a way for new classes to allow themselves to be printed.
|
||||
By deriving from Printable and implementing the printTo method, it will then be possible
|
||||
for users to print out instances of this class by passing them into the usual
|
||||
Print::print and Print::println methods.
|
||||
*/
|
||||
|
||||
class Printable
|
||||
{
|
||||
public:
|
||||
virtual size_t printTo(Print& p) const = 0;
|
||||
};
|
||||
|
||||
#endif
|
||||
|
319
platform/osd-merkur/dev/arduino/Stream.cpp
Normal file
319
platform/osd-merkur/dev/arduino/Stream.cpp
Normal file
|
@ -0,0 +1,319 @@
|
|||
/*
|
||||
Stream.cpp - adds parsing methods to Stream class
|
||||
Copyright (c) 2008 David A. Mellis. All right reserved.
|
||||
|
||||
This library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
This library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with this library; if not, write to the Free Software
|
||||
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
|
||||
Created July 2011
|
||||
parsing functions based on TextFinder library by Michael Margolis
|
||||
|
||||
findMulti/findUntil routines written by Jim Leonard/Xuth
|
||||
*/
|
||||
|
||||
#include "Arduino.h"
|
||||
#include "Stream.h"
|
||||
|
||||
#define PARSE_TIMEOUT 1000 // default number of milli-seconds to wait
|
||||
|
||||
// private method to read stream with timeout
|
||||
int Stream::timedRead()
|
||||
{
|
||||
int c;
|
||||
_startMillis = millis();
|
||||
do {
|
||||
c = read();
|
||||
if (c >= 0) return c;
|
||||
} while(millis() - _startMillis < _timeout);
|
||||
return -1; // -1 indicates timeout
|
||||
}
|
||||
|
||||
// private method to peek stream with timeout
|
||||
int Stream::timedPeek()
|
||||
{
|
||||
int c;
|
||||
_startMillis = millis();
|
||||
do {
|
||||
c = peek();
|
||||
if (c >= 0) return c;
|
||||
} while(millis() - _startMillis < _timeout);
|
||||
return -1; // -1 indicates timeout
|
||||
}
|
||||
|
||||
// returns peek of the next digit in the stream or -1 if timeout
|
||||
// discards non-numeric characters
|
||||
int Stream::peekNextDigit(LookaheadMode lookahead, bool detectDecimal)
|
||||
{
|
||||
int c;
|
||||
while (1) {
|
||||
c = timedPeek();
|
||||
|
||||
if( c < 0 ||
|
||||
c == '-' ||
|
||||
(c >= '0' && c <= '9') ||
|
||||
(detectDecimal && c == '.')) return c;
|
||||
|
||||
switch( lookahead ){
|
||||
case SKIP_NONE: return -1; // Fail code.
|
||||
case SKIP_WHITESPACE:
|
||||
switch( c ){
|
||||
case ' ':
|
||||
case '\t':
|
||||
case '\r':
|
||||
case '\n': break;
|
||||
default: return -1; // Fail code.
|
||||
}
|
||||
case SKIP_ALL:
|
||||
break;
|
||||
}
|
||||
read(); // discard non-numeric
|
||||
}
|
||||
}
|
||||
|
||||
// Public Methods
|
||||
//////////////////////////////////////////////////////////////
|
||||
|
||||
void Stream::setTimeout(unsigned long timeout) // sets the maximum number of milliseconds to wait
|
||||
{
|
||||
_timeout = timeout;
|
||||
}
|
||||
|
||||
// find returns true if the target string is found
|
||||
bool Stream::find(char *target)
|
||||
{
|
||||
return findUntil(target, strlen(target), NULL, 0);
|
||||
}
|
||||
|
||||
// reads data from the stream until the target string of given length is found
|
||||
// returns true if target string is found, false if timed out
|
||||
bool Stream::find(char *target, size_t length)
|
||||
{
|
||||
return findUntil(target, length, NULL, 0);
|
||||
}
|
||||
|
||||
// as find but search ends if the terminator string is found
|
||||
bool Stream::findUntil(char *target, char *terminator)
|
||||
{
|
||||
return findUntil(target, strlen(target), terminator, strlen(terminator));
|
||||
}
|
||||
|
||||
// reads data from the stream until the target string of the given length is found
|
||||
// search terminated if the terminator string is found
|
||||
// returns true if target string is found, false if terminated or timed out
|
||||
bool Stream::findUntil(char *target, size_t targetLen, char *terminator, size_t termLen)
|
||||
{
|
||||
if (terminator == NULL) {
|
||||
MultiTarget t[1] = {{target, targetLen, 0}};
|
||||
return findMulti(t, 1) == 0 ? true : false;
|
||||
} else {
|
||||
MultiTarget t[2] = {{target, targetLen, 0}, {terminator, termLen, 0}};
|
||||
return findMulti(t, 2) == 0 ? true : false;
|
||||
}
|
||||
}
|
||||
|
||||
// returns the first valid (long) integer value from the current position.
|
||||
// lookahead determines how parseInt looks ahead in the stream.
|
||||
// See LookaheadMode enumeration at the top of the file.
|
||||
// Lookahead is terminated by the first character that is not a valid part of an integer.
|
||||
// Once parsing commences, 'ignore' will be skipped in the stream.
|
||||
long Stream::parseInt(LookaheadMode lookahead, char ignore)
|
||||
{
|
||||
bool isNegative = false;
|
||||
long value = 0;
|
||||
int c;
|
||||
|
||||
c = peekNextDigit(lookahead, false);
|
||||
// ignore non numeric leading characters
|
||||
if(c < 0)
|
||||
return 0; // zero returned if timeout
|
||||
|
||||
do{
|
||||
if(c == ignore)
|
||||
; // ignore this character
|
||||
else if(c == '-')
|
||||
isNegative = true;
|
||||
else if(c >= '0' && c <= '9') // is c a digit?
|
||||
value = value * 10 + c - '0';
|
||||
read(); // consume the character we got with peek
|
||||
c = timedPeek();
|
||||
}
|
||||
while( (c >= '0' && c <= '9') || c == ignore );
|
||||
|
||||
if(isNegative)
|
||||
value = -value;
|
||||
return value;
|
||||
}
|
||||
|
||||
// as parseInt but returns a floating point value
|
||||
float Stream::parseFloat(LookaheadMode lookahead, char ignore)
|
||||
{
|
||||
bool isNegative = false;
|
||||
bool isFraction = false;
|
||||
long value = 0;
|
||||
int c;
|
||||
float fraction = 1.0;
|
||||
|
||||
c = peekNextDigit(lookahead, true);
|
||||
// ignore non numeric leading characters
|
||||
if(c < 0)
|
||||
return 0; // zero returned if timeout
|
||||
|
||||
do{
|
||||
if(c == ignore)
|
||||
; // ignore
|
||||
else if(c == '-')
|
||||
isNegative = true;
|
||||
else if (c == '.')
|
||||
isFraction = true;
|
||||
else if(c >= '0' && c <= '9') { // is c a digit?
|
||||
value = value * 10 + c - '0';
|
||||
if(isFraction)
|
||||
fraction *= 0.1;
|
||||
}
|
||||
read(); // consume the character we got with peek
|
||||
c = timedPeek();
|
||||
}
|
||||
while( (c >= '0' && c <= '9') || (c == '.' && !isFraction) || c == ignore );
|
||||
|
||||
if(isNegative)
|
||||
value = -value;
|
||||
if(isFraction)
|
||||
return value * fraction;
|
||||
else
|
||||
return value;
|
||||
}
|
||||
|
||||
// read characters from stream into buffer
|
||||
// terminates if length characters have been read, or timeout (see setTimeout)
|
||||
// returns the number of characters placed in the buffer
|
||||
// the buffer is NOT null terminated.
|
||||
//
|
||||
size_t Stream::readBytes(char *buffer, size_t length)
|
||||
{
|
||||
size_t count = 0;
|
||||
while (count < length) {
|
||||
int c = timedRead();
|
||||
if (c < 0) break;
|
||||
*buffer++ = (char)c;
|
||||
count++;
|
||||
}
|
||||
return count;
|
||||
}
|
||||
|
||||
|
||||
// as readBytes with terminator character
|
||||
// terminates if length characters have been read, timeout, or if the terminator character detected
|
||||
// returns the number of characters placed in the buffer (0 means no valid data found)
|
||||
|
||||
size_t Stream::readBytesUntil(char terminator, char *buffer, size_t length)
|
||||
{
|
||||
if (length < 1) return 0;
|
||||
size_t index = 0;
|
||||
while (index < length) {
|
||||
int c = timedRead();
|
||||
if (c < 0 || c == terminator) break;
|
||||
*buffer++ = (char)c;
|
||||
index++;
|
||||
}
|
||||
return index; // return number of characters, not including null terminator
|
||||
}
|
||||
|
||||
String Stream::readString()
|
||||
{
|
||||
String ret;
|
||||
int c = timedRead();
|
||||
while (c >= 0)
|
||||
{
|
||||
ret += (char)c;
|
||||
c = timedRead();
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
String Stream::readStringUntil(char terminator)
|
||||
{
|
||||
String ret;
|
||||
int c = timedRead();
|
||||
while (c >= 0 && c != terminator)
|
||||
{
|
||||
ret += (char)c;
|
||||
c = timedRead();
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
int Stream::findMulti( struct Stream::MultiTarget *targets, int tCount) {
|
||||
// any zero length target string automatically matches and would make
|
||||
// a mess of the rest of the algorithm.
|
||||
for (struct MultiTarget *t = targets; t < targets+tCount; ++t) {
|
||||
if (t->len <= 0)
|
||||
return t - targets;
|
||||
}
|
||||
|
||||
while (1) {
|
||||
int c = timedRead();
|
||||
if (c < 0)
|
||||
return -1;
|
||||
|
||||
for (struct MultiTarget *t = targets; t < targets+tCount; ++t) {
|
||||
// the simple case is if we match, deal with that first.
|
||||
if (c == t->str[t->index]) {
|
||||
if (++t->index == t->len)
|
||||
return t - targets;
|
||||
else
|
||||
continue;
|
||||
}
|
||||
|
||||
// if not we need to walk back and see if we could have matched further
|
||||
// down the stream (ie '1112' doesn't match the first position in '11112'
|
||||
// but it will match the second position so we can't just reset the current
|
||||
// index to 0 when we find a mismatch.
|
||||
if (t->index == 0)
|
||||
continue;
|
||||
|
||||
int origIndex = t->index;
|
||||
do {
|
||||
--t->index;
|
||||
// first check if current char works against the new current index
|
||||
if (c != t->str[t->index])
|
||||
continue;
|
||||
|
||||
// if it's the only char then we're good, nothing more to check
|
||||
if (t->index == 0) {
|
||||
t->index++;
|
||||
break;
|
||||
}
|
||||
|
||||
// otherwise we need to check the rest of the found string
|
||||
int diff = origIndex - t->index;
|
||||
size_t i;
|
||||
for (i = 0; i < t->index; ++i) {
|
||||
if (t->str[i] != t->str[i + diff])
|
||||
break;
|
||||
}
|
||||
|
||||
// if we successfully got through the previous loop then our current
|
||||
// index is good.
|
||||
if (i == t->index) {
|
||||
t->index++;
|
||||
break;
|
||||
}
|
||||
|
||||
// otherwise we just try the next index
|
||||
} while (t->index);
|
||||
}
|
||||
}
|
||||
// unreachable
|
||||
return -1;
|
||||
}
|
129
platform/osd-merkur/dev/arduino/Stream.h
Normal file
129
platform/osd-merkur/dev/arduino/Stream.h
Normal file
|
@ -0,0 +1,129 @@
|
|||
/*
|
||||
Stream.h - base class for character-based streams.
|
||||
Copyright (c) 2010 David A. Mellis. All right reserved.
|
||||
|
||||
This library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
This library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with this library; if not, write to the Free Software
|
||||
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
|
||||
parsing functions based on TextFinder library by Michael Margolis
|
||||
*/
|
||||
|
||||
#ifndef Stream_h
|
||||
#define Stream_h
|
||||
|
||||
#include <inttypes.h>
|
||||
#include "Print.h"
|
||||
|
||||
// compatability macros for testing
|
||||
/*
|
||||
#define getInt() parseInt()
|
||||
#define getInt(ignore) parseInt(ignore)
|
||||
#define getFloat() parseFloat()
|
||||
#define getFloat(ignore) parseFloat(ignore)
|
||||
#define getString( pre_string, post_string, buffer, length)
|
||||
readBytesBetween( pre_string, terminator, buffer, length)
|
||||
*/
|
||||
|
||||
// This enumeration provides the lookahead options for parseInt(), parseFloat()
|
||||
// The rules set out here are used until either the first valid character is found
|
||||
// or a time out occurs due to lack of input.
|
||||
enum LookaheadMode{
|
||||
SKIP_ALL, // All invalid characters are ignored.
|
||||
SKIP_NONE, // Nothing is skipped, and the stream is not touched unless the first waiting character is valid.
|
||||
SKIP_WHITESPACE // Only tabs, spaces, line feeds & carriage returns are skipped.
|
||||
};
|
||||
|
||||
#define NO_IGNORE_CHAR '\x01' // a char not found in a valid ASCII numeric field
|
||||
|
||||
class Stream : public Print
|
||||
{
|
||||
protected:
|
||||
unsigned long _timeout; // number of milliseconds to wait for the next char before aborting timed read
|
||||
unsigned long _startMillis; // used for timeout measurement
|
||||
int timedRead(); // private method to read stream with timeout
|
||||
int timedPeek(); // private method to peek stream with timeout
|
||||
int peekNextDigit(LookaheadMode lookahead, bool detectDecimal); // returns the next numeric digit in the stream or -1 if timeout
|
||||
|
||||
public:
|
||||
virtual int available() = 0;
|
||||
virtual int read() = 0;
|
||||
virtual int peek() = 0;
|
||||
virtual void flush() = 0;
|
||||
|
||||
Stream() {_timeout=1000;}
|
||||
|
||||
// parsing methods
|
||||
|
||||
void setTimeout(unsigned long timeout); // sets maximum milliseconds to wait for stream data, default is 1 second
|
||||
|
||||
bool find(char *target); // reads data from the stream until the target string is found
|
||||
bool find(uint8_t *target) { return find ((char *)target); }
|
||||
// returns true if target string is found, false if timed out (see setTimeout)
|
||||
|
||||
bool find(char *target, size_t length); // reads data from the stream until the target string of given length is found
|
||||
bool find(uint8_t *target, size_t length) { return find ((char *)target, length); }
|
||||
// returns true if target string is found, false if timed out
|
||||
|
||||
bool find(char target) { return find (&target, 1); }
|
||||
|
||||
bool findUntil(char *target, char *terminator); // as find but search ends if the terminator string is found
|
||||
bool findUntil(uint8_t *target, char *terminator) { return findUntil((char *)target, terminator); }
|
||||
|
||||
bool findUntil(char *target, size_t targetLen, char *terminate, size_t termLen); // as above but search ends if the terminate string is found
|
||||
bool findUntil(uint8_t *target, size_t targetLen, char *terminate, size_t termLen) {return findUntil((char *)target, targetLen, terminate, termLen); }
|
||||
|
||||
long parseInt(LookaheadMode lookahead = SKIP_ALL, char ignore = NO_IGNORE_CHAR);
|
||||
// returns the first valid (long) integer value from the current position.
|
||||
// lookahead determines how parseInt looks ahead in the stream.
|
||||
// See LookaheadMode enumeration at the top of the file.
|
||||
// Lookahead is terminated by the first character that is not a valid part of an integer.
|
||||
// Once parsing commences, 'ignore' will be skipped in the stream.
|
||||
|
||||
float parseFloat(LookaheadMode lookahead = SKIP_ALL, char ignore = NO_IGNORE_CHAR);
|
||||
// float version of parseInt
|
||||
|
||||
size_t readBytes( char *buffer, size_t length); // read chars from stream into buffer
|
||||
size_t readBytes( uint8_t *buffer, size_t length) { return readBytes((char *)buffer, length); }
|
||||
// terminates if length characters have been read or timeout (see setTimeout)
|
||||
// returns the number of characters placed in the buffer (0 means no valid data found)
|
||||
|
||||
size_t readBytesUntil( char terminator, char *buffer, size_t length); // as readBytes with terminator character
|
||||
size_t readBytesUntil( char terminator, uint8_t *buffer, size_t length) { return readBytesUntil(terminator, (char *)buffer, length); }
|
||||
// terminates if length characters have been read, timeout, or if the terminator character detected
|
||||
// returns the number of characters placed in the buffer (0 means no valid data found)
|
||||
|
||||
// Arduino String functions to be added here
|
||||
String readString();
|
||||
String readStringUntil(char terminator);
|
||||
|
||||
protected:
|
||||
long parseInt(char ignore) { return parseInt(SKIP_ALL, ignore); }
|
||||
float parseFloat(char ignore) { return parseFloat(SKIP_ALL, ignore); }
|
||||
// These overload exists for compatibility with any class that has derived
|
||||
// Stream and used parseFloat/Int with a custom ignore character. To keep
|
||||
// the public API simple, these overload remains protected.
|
||||
|
||||
struct MultiTarget {
|
||||
const char *str; // string you're searching for
|
||||
size_t len; // length of string you're searching for
|
||||
size_t index; // index used by the search routine.
|
||||
};
|
||||
|
||||
// This allows you to search for an arbitrary number of strings.
|
||||
// Returns index of the target that is found first or -1 if timeout occurs.
|
||||
int findMulti(struct MultiTarget *targets, int tCount);
|
||||
};
|
||||
|
||||
#undef NO_IGNORE_CHAR
|
||||
#endif
|
58
platform/osd-merkur/dev/arduino/WMath.cpp
Normal file
58
platform/osd-merkur/dev/arduino/WMath.cpp
Normal file
|
@ -0,0 +1,58 @@
|
|||
/* -*- mode: jde; c-basic-offset: 2; indent-tabs-mode: nil -*- */
|
||||
|
||||
/*
|
||||
Part of the Wiring project - http://wiring.org.co
|
||||
Copyright (c) 2004-06 Hernando Barragan
|
||||
Modified 13 August 2006, David A. Mellis for Arduino - http://www.arduino.cc/
|
||||
|
||||
This library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
This library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General
|
||||
Public License along with this library; if not, write to the
|
||||
Free Software Foundation, Inc., 59 Temple Place, Suite 330,
|
||||
Boston, MA 02111-1307 USA
|
||||
*/
|
||||
|
||||
extern "C" {
|
||||
#include "stdlib.h"
|
||||
}
|
||||
|
||||
void randomSeed(unsigned long seed)
|
||||
{
|
||||
if (seed != 0) {
|
||||
srandom(seed);
|
||||
}
|
||||
}
|
||||
|
||||
long random(long howbig)
|
||||
{
|
||||
if (howbig == 0) {
|
||||
return 0;
|
||||
}
|
||||
return random() % howbig;
|
||||
}
|
||||
|
||||
long random(long howsmall, long howbig)
|
||||
{
|
||||
if (howsmall >= howbig) {
|
||||
return howsmall;
|
||||
}
|
||||
long diff = howbig - howsmall;
|
||||
return random(diff) + howsmall;
|
||||
}
|
||||
|
||||
long map(long x, long in_min, long in_max, long out_min, long out_max)
|
||||
{
|
||||
return (x - in_min) * (out_max - out_min) / (in_max - in_min) + out_min;
|
||||
}
|
||||
|
||||
unsigned int makeWord(unsigned int w) { return w; }
|
||||
unsigned int makeWord(unsigned char h, unsigned char l) { return (h << 8) | l; }
|
745
platform/osd-merkur/dev/arduino/WString.cpp
Normal file
745
platform/osd-merkur/dev/arduino/WString.cpp
Normal file
|
@ -0,0 +1,745 @@
|
|||
/*
|
||||
WString.cpp - String library for Wiring & Arduino
|
||||
...mostly rewritten by Paul Stoffregen...
|
||||
Copyright (c) 2009-10 Hernando Barragan. All rights reserved.
|
||||
Copyright 2011, Paul Stoffregen, paul@pjrc.com
|
||||
|
||||
This library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
This library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with this library; if not, write to the Free Software
|
||||
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
#include "WString.h"
|
||||
|
||||
/*********************************************/
|
||||
/* Constructors */
|
||||
/*********************************************/
|
||||
|
||||
String::String(const char *cstr)
|
||||
{
|
||||
init();
|
||||
if (cstr) copy(cstr, strlen(cstr));
|
||||
}
|
||||
|
||||
String::String(const String &value)
|
||||
{
|
||||
init();
|
||||
*this = value;
|
||||
}
|
||||
|
||||
String::String(const __FlashStringHelper *pstr)
|
||||
{
|
||||
init();
|
||||
*this = pstr;
|
||||
}
|
||||
|
||||
#if __cplusplus >= 201103L || defined(__GXX_EXPERIMENTAL_CXX0X__)
|
||||
String::String(String &&rval)
|
||||
{
|
||||
init();
|
||||
move(rval);
|
||||
}
|
||||
String::String(StringSumHelper &&rval)
|
||||
{
|
||||
init();
|
||||
move(rval);
|
||||
}
|
||||
#endif
|
||||
|
||||
String::String(char c)
|
||||
{
|
||||
init();
|
||||
char buf[2];
|
||||
buf[0] = c;
|
||||
buf[1] = 0;
|
||||
*this = buf;
|
||||
}
|
||||
|
||||
String::String(unsigned char value, unsigned char base)
|
||||
{
|
||||
init();
|
||||
char buf[1 + 8 * sizeof(unsigned char)];
|
||||
utoa(value, buf, base);
|
||||
*this = buf;
|
||||
}
|
||||
|
||||
String::String(int value, unsigned char base)
|
||||
{
|
||||
init();
|
||||
char buf[2 + 8 * sizeof(int)];
|
||||
itoa(value, buf, base);
|
||||
*this = buf;
|
||||
}
|
||||
|
||||
String::String(unsigned int value, unsigned char base)
|
||||
{
|
||||
init();
|
||||
char buf[1 + 8 * sizeof(unsigned int)];
|
||||
utoa(value, buf, base);
|
||||
*this = buf;
|
||||
}
|
||||
|
||||
String::String(long value, unsigned char base)
|
||||
{
|
||||
init();
|
||||
char buf[2 + 8 * sizeof(long)];
|
||||
ltoa(value, buf, base);
|
||||
*this = buf;
|
||||
}
|
||||
|
||||
String::String(unsigned long value, unsigned char base)
|
||||
{
|
||||
init();
|
||||
char buf[1 + 8 * sizeof(unsigned long)];
|
||||
ultoa(value, buf, base);
|
||||
*this = buf;
|
||||
}
|
||||
|
||||
String::String(float value, unsigned char decimalPlaces)
|
||||
{
|
||||
init();
|
||||
char buf[33];
|
||||
*this = dtostrf(value, (decimalPlaces + 2), decimalPlaces, buf);
|
||||
}
|
||||
|
||||
String::String(double value, unsigned char decimalPlaces)
|
||||
{
|
||||
init();
|
||||
char buf[33];
|
||||
*this = dtostrf(value, (decimalPlaces + 2), decimalPlaces, buf);
|
||||
}
|
||||
|
||||
String::~String()
|
||||
{
|
||||
free(buffer);
|
||||
}
|
||||
|
||||
/*********************************************/
|
||||
/* Memory Management */
|
||||
/*********************************************/
|
||||
|
||||
inline void String::init(void)
|
||||
{
|
||||
buffer = NULL;
|
||||
capacity = 0;
|
||||
len = 0;
|
||||
}
|
||||
|
||||
void String::invalidate(void)
|
||||
{
|
||||
if (buffer) free(buffer);
|
||||
buffer = NULL;
|
||||
capacity = len = 0;
|
||||
}
|
||||
|
||||
unsigned char String::reserve(unsigned int size)
|
||||
{
|
||||
if (buffer && capacity >= size) return 1;
|
||||
if (changeBuffer(size)) {
|
||||
if (len == 0) buffer[0] = 0;
|
||||
return 1;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
unsigned char String::changeBuffer(unsigned int maxStrLen)
|
||||
{
|
||||
char *newbuffer = (char *)realloc(buffer, maxStrLen + 1);
|
||||
if (newbuffer) {
|
||||
buffer = newbuffer;
|
||||
capacity = maxStrLen;
|
||||
return 1;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*********************************************/
|
||||
/* Copy and Move */
|
||||
/*********************************************/
|
||||
|
||||
String & String::copy(const char *cstr, unsigned int length)
|
||||
{
|
||||
if (!reserve(length)) {
|
||||
invalidate();
|
||||
return *this;
|
||||
}
|
||||
len = length;
|
||||
strcpy(buffer, cstr);
|
||||
return *this;
|
||||
}
|
||||
|
||||
String & String::copy(const __FlashStringHelper *pstr, unsigned int length)
|
||||
{
|
||||
if (!reserve(length)) {
|
||||
invalidate();
|
||||
return *this;
|
||||
}
|
||||
len = length;
|
||||
strcpy_P(buffer, (PGM_P)pstr);
|
||||
return *this;
|
||||
}
|
||||
|
||||
#if __cplusplus >= 201103L || defined(__GXX_EXPERIMENTAL_CXX0X__)
|
||||
void String::move(String &rhs)
|
||||
{
|
||||
if (buffer) {
|
||||
if (capacity >= rhs.len) {
|
||||
strcpy(buffer, rhs.buffer);
|
||||
len = rhs.len;
|
||||
rhs.len = 0;
|
||||
return;
|
||||
} else {
|
||||
free(buffer);
|
||||
}
|
||||
}
|
||||
buffer = rhs.buffer;
|
||||
capacity = rhs.capacity;
|
||||
len = rhs.len;
|
||||
rhs.buffer = NULL;
|
||||
rhs.capacity = 0;
|
||||
rhs.len = 0;
|
||||
}
|
||||
#endif
|
||||
|
||||
String & String::operator = (const String &rhs)
|
||||
{
|
||||
if (this == &rhs) return *this;
|
||||
|
||||
if (rhs.buffer) copy(rhs.buffer, rhs.len);
|
||||
else invalidate();
|
||||
|
||||
return *this;
|
||||
}
|
||||
|
||||
#if __cplusplus >= 201103L || defined(__GXX_EXPERIMENTAL_CXX0X__)
|
||||
String & String::operator = (String &&rval)
|
||||
{
|
||||
if (this != &rval) move(rval);
|
||||
return *this;
|
||||
}
|
||||
|
||||
String & String::operator = (StringSumHelper &&rval)
|
||||
{
|
||||
if (this != &rval) move(rval);
|
||||
return *this;
|
||||
}
|
||||
#endif
|
||||
|
||||
String & String::operator = (const char *cstr)
|
||||
{
|
||||
if (cstr) copy(cstr, strlen(cstr));
|
||||
else invalidate();
|
||||
|
||||
return *this;
|
||||
}
|
||||
|
||||
String & String::operator = (const __FlashStringHelper *pstr)
|
||||
{
|
||||
if (pstr) copy(pstr, strlen_P((PGM_P)pstr));
|
||||
else invalidate();
|
||||
|
||||
return *this;
|
||||
}
|
||||
|
||||
/*********************************************/
|
||||
/* concat */
|
||||
/*********************************************/
|
||||
|
||||
unsigned char String::concat(const String &s)
|
||||
{
|
||||
return concat(s.buffer, s.len);
|
||||
}
|
||||
|
||||
unsigned char String::concat(const char *cstr, unsigned int length)
|
||||
{
|
||||
unsigned int newlen = len + length;
|
||||
if (!cstr) return 0;
|
||||
if (length == 0) return 1;
|
||||
if (!reserve(newlen)) return 0;
|
||||
strcpy(buffer + len, cstr);
|
||||
len = newlen;
|
||||
return 1;
|
||||
}
|
||||
|
||||
unsigned char String::concat(const char *cstr)
|
||||
{
|
||||
if (!cstr) return 0;
|
||||
return concat(cstr, strlen(cstr));
|
||||
}
|
||||
|
||||
unsigned char String::concat(char c)
|
||||
{
|
||||
char buf[2];
|
||||
buf[0] = c;
|
||||
buf[1] = 0;
|
||||
return concat(buf, 1);
|
||||
}
|
||||
|
||||
unsigned char String::concat(unsigned char num)
|
||||
{
|
||||
char buf[1 + 3 * sizeof(unsigned char)];
|
||||
itoa(num, buf, 10);
|
||||
return concat(buf, strlen(buf));
|
||||
}
|
||||
|
||||
unsigned char String::concat(int num)
|
||||
{
|
||||
char buf[2 + 3 * sizeof(int)];
|
||||
itoa(num, buf, 10);
|
||||
return concat(buf, strlen(buf));
|
||||
}
|
||||
|
||||
unsigned char String::concat(unsigned int num)
|
||||
{
|
||||
char buf[1 + 3 * sizeof(unsigned int)];
|
||||
utoa(num, buf, 10);
|
||||
return concat(buf, strlen(buf));
|
||||
}
|
||||
|
||||
unsigned char String::concat(long num)
|
||||
{
|
||||
char buf[2 + 3 * sizeof(long)];
|
||||
ltoa(num, buf, 10);
|
||||
return concat(buf, strlen(buf));
|
||||
}
|
||||
|
||||
unsigned char String::concat(unsigned long num)
|
||||
{
|
||||
char buf[1 + 3 * sizeof(unsigned long)];
|
||||
ultoa(num, buf, 10);
|
||||
return concat(buf, strlen(buf));
|
||||
}
|
||||
|
||||
unsigned char String::concat(float num)
|
||||
{
|
||||
char buf[20];
|
||||
char* string = dtostrf(num, 4, 2, buf);
|
||||
return concat(string, strlen(string));
|
||||
}
|
||||
|
||||
unsigned char String::concat(double num)
|
||||
{
|
||||
char buf[20];
|
||||
char* string = dtostrf(num, 4, 2, buf);
|
||||
return concat(string, strlen(string));
|
||||
}
|
||||
|
||||
unsigned char String::concat(const __FlashStringHelper * str)
|
||||
{
|
||||
if (!str) return 0;
|
||||
int length = strlen_P((const char *) str);
|
||||
if (length == 0) return 1;
|
||||
unsigned int newlen = len + length;
|
||||
if (!reserve(newlen)) return 0;
|
||||
strcpy_P(buffer + len, (const char *) str);
|
||||
len = newlen;
|
||||
return 1;
|
||||
}
|
||||
|
||||
/*********************************************/
|
||||
/* Concatenate */
|
||||
/*********************************************/
|
||||
|
||||
StringSumHelper & operator + (const StringSumHelper &lhs, const String &rhs)
|
||||
{
|
||||
StringSumHelper &a = const_cast<StringSumHelper&>(lhs);
|
||||
if (!a.concat(rhs.buffer, rhs.len)) a.invalidate();
|
||||
return a;
|
||||
}
|
||||
|
||||
StringSumHelper & operator + (const StringSumHelper &lhs, const char *cstr)
|
||||
{
|
||||
StringSumHelper &a = const_cast<StringSumHelper&>(lhs);
|
||||
if (!cstr || !a.concat(cstr, strlen(cstr))) a.invalidate();
|
||||
return a;
|
||||
}
|
||||
|
||||
StringSumHelper & operator + (const StringSumHelper &lhs, char c)
|
||||
{
|
||||
StringSumHelper &a = const_cast<StringSumHelper&>(lhs);
|
||||
if (!a.concat(c)) a.invalidate();
|
||||
return a;
|
||||
}
|
||||
|
||||
StringSumHelper & operator + (const StringSumHelper &lhs, unsigned char num)
|
||||
{
|
||||
StringSumHelper &a = const_cast<StringSumHelper&>(lhs);
|
||||
if (!a.concat(num)) a.invalidate();
|
||||
return a;
|
||||
}
|
||||
|
||||
StringSumHelper & operator + (const StringSumHelper &lhs, int num)
|
||||
{
|
||||
StringSumHelper &a = const_cast<StringSumHelper&>(lhs);
|
||||
if (!a.concat(num)) a.invalidate();
|
||||
return a;
|
||||
}
|
||||
|
||||
StringSumHelper & operator + (const StringSumHelper &lhs, unsigned int num)
|
||||
{
|
||||
StringSumHelper &a = const_cast<StringSumHelper&>(lhs);
|
||||
if (!a.concat(num)) a.invalidate();
|
||||
return a;
|
||||
}
|
||||
|
||||
StringSumHelper & operator + (const StringSumHelper &lhs, long num)
|
||||
{
|
||||
StringSumHelper &a = const_cast<StringSumHelper&>(lhs);
|
||||
if (!a.concat(num)) a.invalidate();
|
||||
return a;
|
||||
}
|
||||
|
||||
StringSumHelper & operator + (const StringSumHelper &lhs, unsigned long num)
|
||||
{
|
||||
StringSumHelper &a = const_cast<StringSumHelper&>(lhs);
|
||||
if (!a.concat(num)) a.invalidate();
|
||||
return a;
|
||||
}
|
||||
|
||||
StringSumHelper & operator + (const StringSumHelper &lhs, float num)
|
||||
{
|
||||
StringSumHelper &a = const_cast<StringSumHelper&>(lhs);
|
||||
if (!a.concat(num)) a.invalidate();
|
||||
return a;
|
||||
}
|
||||
|
||||
StringSumHelper & operator + (const StringSumHelper &lhs, double num)
|
||||
{
|
||||
StringSumHelper &a = const_cast<StringSumHelper&>(lhs);
|
||||
if (!a.concat(num)) a.invalidate();
|
||||
return a;
|
||||
}
|
||||
|
||||
StringSumHelper & operator + (const StringSumHelper &lhs, const __FlashStringHelper *rhs)
|
||||
{
|
||||
StringSumHelper &a = const_cast<StringSumHelper&>(lhs);
|
||||
if (!a.concat(rhs)) a.invalidate();
|
||||
return a;
|
||||
}
|
||||
|
||||
/*********************************************/
|
||||
/* Comparison */
|
||||
/*********************************************/
|
||||
|
||||
int String::compareTo(const String &s) const
|
||||
{
|
||||
if (!buffer || !s.buffer) {
|
||||
if (s.buffer && s.len > 0) return 0 - *(unsigned char *)s.buffer;
|
||||
if (buffer && len > 0) return *(unsigned char *)buffer;
|
||||
return 0;
|
||||
}
|
||||
return strcmp(buffer, s.buffer);
|
||||
}
|
||||
|
||||
unsigned char String::equals(const String &s2) const
|
||||
{
|
||||
return (len == s2.len && compareTo(s2) == 0);
|
||||
}
|
||||
|
||||
unsigned char String::equals(const char *cstr) const
|
||||
{
|
||||
if (len == 0) return (cstr == NULL || *cstr == 0);
|
||||
if (cstr == NULL) return buffer[0] == 0;
|
||||
return strcmp(buffer, cstr) == 0;
|
||||
}
|
||||
|
||||
unsigned char String::operator<(const String &rhs) const
|
||||
{
|
||||
return compareTo(rhs) < 0;
|
||||
}
|
||||
|
||||
unsigned char String::operator>(const String &rhs) const
|
||||
{
|
||||
return compareTo(rhs) > 0;
|
||||
}
|
||||
|
||||
unsigned char String::operator<=(const String &rhs) const
|
||||
{
|
||||
return compareTo(rhs) <= 0;
|
||||
}
|
||||
|
||||
unsigned char String::operator>=(const String &rhs) const
|
||||
{
|
||||
return compareTo(rhs) >= 0;
|
||||
}
|
||||
|
||||
unsigned char String::equalsIgnoreCase( const String &s2 ) const
|
||||
{
|
||||
if (this == &s2) return 1;
|
||||
if (len != s2.len) return 0;
|
||||
if (len == 0) return 1;
|
||||
const char *p1 = buffer;
|
||||
const char *p2 = s2.buffer;
|
||||
while (*p1) {
|
||||
if (tolower(*p1++) != tolower(*p2++)) return 0;
|
||||
}
|
||||
return 1;
|
||||
}
|
||||
|
||||
unsigned char String::startsWith( const String &s2 ) const
|
||||
{
|
||||
if (len < s2.len) return 0;
|
||||
return startsWith(s2, 0);
|
||||
}
|
||||
|
||||
unsigned char String::startsWith( const String &s2, unsigned int offset ) const
|
||||
{
|
||||
if (offset > len - s2.len || !buffer || !s2.buffer) return 0;
|
||||
return strncmp( &buffer[offset], s2.buffer, s2.len ) == 0;
|
||||
}
|
||||
|
||||
unsigned char String::endsWith( const String &s2 ) const
|
||||
{
|
||||
if ( len < s2.len || !buffer || !s2.buffer) return 0;
|
||||
return strcmp(&buffer[len - s2.len], s2.buffer) == 0;
|
||||
}
|
||||
|
||||
/*********************************************/
|
||||
/* Character Access */
|
||||
/*********************************************/
|
||||
|
||||
char String::charAt(unsigned int loc) const
|
||||
{
|
||||
return operator[](loc);
|
||||
}
|
||||
|
||||
void String::setCharAt(unsigned int loc, char c)
|
||||
{
|
||||
if (loc < len) buffer[loc] = c;
|
||||
}
|
||||
|
||||
char & String::operator[](unsigned int index)
|
||||
{
|
||||
static char dummy_writable_char;
|
||||
if (index >= len || !buffer) {
|
||||
dummy_writable_char = 0;
|
||||
return dummy_writable_char;
|
||||
}
|
||||
return buffer[index];
|
||||
}
|
||||
|
||||
char String::operator[]( unsigned int index ) const
|
||||
{
|
||||
if (index >= len || !buffer) return 0;
|
||||
return buffer[index];
|
||||
}
|
||||
|
||||
void String::getBytes(unsigned char *buf, unsigned int bufsize, unsigned int index) const
|
||||
{
|
||||
if (!bufsize || !buf) return;
|
||||
if (index >= len) {
|
||||
buf[0] = 0;
|
||||
return;
|
||||
}
|
||||
unsigned int n = bufsize - 1;
|
||||
if (n > len - index) n = len - index;
|
||||
strncpy((char *)buf, buffer + index, n);
|
||||
buf[n] = 0;
|
||||
}
|
||||
|
||||
/*********************************************/
|
||||
/* Search */
|
||||
/*********************************************/
|
||||
|
||||
int String::indexOf(char c) const
|
||||
{
|
||||
return indexOf(c, 0);
|
||||
}
|
||||
|
||||
int String::indexOf( char ch, unsigned int fromIndex ) const
|
||||
{
|
||||
if (fromIndex >= len) return -1;
|
||||
const char* temp = strchr(buffer + fromIndex, ch);
|
||||
if (temp == NULL) return -1;
|
||||
return temp - buffer;
|
||||
}
|
||||
|
||||
int String::indexOf(const String &s2) const
|
||||
{
|
||||
return indexOf(s2, 0);
|
||||
}
|
||||
|
||||
int String::indexOf(const String &s2, unsigned int fromIndex) const
|
||||
{
|
||||
if (fromIndex >= len) return -1;
|
||||
const char *found = strstr(buffer + fromIndex, s2.buffer);
|
||||
if (found == NULL) return -1;
|
||||
return found - buffer;
|
||||
}
|
||||
|
||||
int String::lastIndexOf( char theChar ) const
|
||||
{
|
||||
return lastIndexOf(theChar, len - 1);
|
||||
}
|
||||
|
||||
int String::lastIndexOf(char ch, unsigned int fromIndex) const
|
||||
{
|
||||
if (fromIndex >= len) return -1;
|
||||
char tempchar = buffer[fromIndex + 1];
|
||||
buffer[fromIndex + 1] = '\0';
|
||||
char* temp = strrchr( buffer, ch );
|
||||
buffer[fromIndex + 1] = tempchar;
|
||||
if (temp == NULL) return -1;
|
||||
return temp - buffer;
|
||||
}
|
||||
|
||||
int String::lastIndexOf(const String &s2) const
|
||||
{
|
||||
return lastIndexOf(s2, len - s2.len);
|
||||
}
|
||||
|
||||
int String::lastIndexOf(const String &s2, unsigned int fromIndex) const
|
||||
{
|
||||
if (s2.len == 0 || len == 0 || s2.len > len) return -1;
|
||||
if (fromIndex >= len) fromIndex = len - 1;
|
||||
int found = -1;
|
||||
for (char *p = buffer; p <= buffer + fromIndex; p++) {
|
||||
p = strstr(p, s2.buffer);
|
||||
if (!p) break;
|
||||
if ((unsigned int)(p - buffer) <= fromIndex) found = p - buffer;
|
||||
}
|
||||
return found;
|
||||
}
|
||||
|
||||
String String::substring(unsigned int left, unsigned int right) const
|
||||
{
|
||||
if (left > right) {
|
||||
unsigned int temp = right;
|
||||
right = left;
|
||||
left = temp;
|
||||
}
|
||||
String out;
|
||||
if (left >= len) return out;
|
||||
if (right > len) right = len;
|
||||
char temp = buffer[right]; // save the replaced character
|
||||
buffer[right] = '\0';
|
||||
out = buffer + left; // pointer arithmetic
|
||||
buffer[right] = temp; //restore character
|
||||
return out;
|
||||
}
|
||||
|
||||
/*********************************************/
|
||||
/* Modification */
|
||||
/*********************************************/
|
||||
|
||||
void String::replace(char find, char replace)
|
||||
{
|
||||
if (!buffer) return;
|
||||
for (char *p = buffer; *p; p++) {
|
||||
if (*p == find) *p = replace;
|
||||
}
|
||||
}
|
||||
|
||||
void String::replace(const String& find, const String& replace)
|
||||
{
|
||||
if (len == 0 || find.len == 0) return;
|
||||
int diff = replace.len - find.len;
|
||||
char *readFrom = buffer;
|
||||
char *foundAt;
|
||||
if (diff == 0) {
|
||||
while ((foundAt = strstr(readFrom, find.buffer)) != NULL) {
|
||||
memcpy(foundAt, replace.buffer, replace.len);
|
||||
readFrom = foundAt + replace.len;
|
||||
}
|
||||
} else if (diff < 0) {
|
||||
char *writeTo = buffer;
|
||||
while ((foundAt = strstr(readFrom, find.buffer)) != NULL) {
|
||||
unsigned int n = foundAt - readFrom;
|
||||
memcpy(writeTo, readFrom, n);
|
||||
writeTo += n;
|
||||
memcpy(writeTo, replace.buffer, replace.len);
|
||||
writeTo += replace.len;
|
||||
readFrom = foundAt + find.len;
|
||||
len += diff;
|
||||
}
|
||||
strcpy(writeTo, readFrom);
|
||||
} else {
|
||||
unsigned int size = len; // compute size needed for result
|
||||
while ((foundAt = strstr(readFrom, find.buffer)) != NULL) {
|
||||
readFrom = foundAt + find.len;
|
||||
size += diff;
|
||||
}
|
||||
if (size == len) return;
|
||||
if (size > capacity && !changeBuffer(size)) return; // XXX: tell user!
|
||||
int index = len - 1;
|
||||
while (index >= 0 && (index = lastIndexOf(find, index)) >= 0) {
|
||||
readFrom = buffer + index + find.len;
|
||||
memmove(readFrom + diff, readFrom, len - (readFrom - buffer));
|
||||
len += diff;
|
||||
buffer[len] = 0;
|
||||
memcpy(buffer + index, replace.buffer, replace.len);
|
||||
index--;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void String::remove(unsigned int index){
|
||||
// Pass the biggest integer as the count. The remove method
|
||||
// below will take care of truncating it at the end of the
|
||||
// string.
|
||||
remove(index, (unsigned int)-1);
|
||||
}
|
||||
|
||||
void String::remove(unsigned int index, unsigned int count){
|
||||
if (index >= len) { return; }
|
||||
if (count <= 0) { return; }
|
||||
if (count > len - index) { count = len - index; }
|
||||
char *writeTo = buffer + index;
|
||||
len = len - count;
|
||||
strncpy(writeTo, buffer + index + count,len - index);
|
||||
buffer[len] = 0;
|
||||
}
|
||||
|
||||
void String::toLowerCase(void)
|
||||
{
|
||||
if (!buffer) return;
|
||||
for (char *p = buffer; *p; p++) {
|
||||
*p = tolower(*p);
|
||||
}
|
||||
}
|
||||
|
||||
void String::toUpperCase(void)
|
||||
{
|
||||
if (!buffer) return;
|
||||
for (char *p = buffer; *p; p++) {
|
||||
*p = toupper(*p);
|
||||
}
|
||||
}
|
||||
|
||||
void String::trim(void)
|
||||
{
|
||||
if (!buffer || len == 0) return;
|
||||
char *begin = buffer;
|
||||
while (isspace(*begin)) begin++;
|
||||
char *end = buffer + len - 1;
|
||||
while (isspace(*end) && end >= begin) end--;
|
||||
len = end + 1 - begin;
|
||||
if (begin > buffer) memcpy(buffer, begin, len);
|
||||
buffer[len] = 0;
|
||||
}
|
||||
|
||||
/*********************************************/
|
||||
/* Parsing / Conversion */
|
||||
/*********************************************/
|
||||
|
||||
long String::toInt(void) const
|
||||
{
|
||||
if (buffer) return atol(buffer);
|
||||
return 0;
|
||||
}
|
||||
|
||||
float String::toFloat(void) const
|
||||
{
|
||||
if (buffer) return float(atof(buffer));
|
||||
return 0;
|
||||
}
|
224
platform/osd-merkur/dev/arduino/WString.h
Normal file
224
platform/osd-merkur/dev/arduino/WString.h
Normal file
|
@ -0,0 +1,224 @@
|
|||
/*
|
||||
WString.h - String library for Wiring & Arduino
|
||||
...mostly rewritten by Paul Stoffregen...
|
||||
Copyright (c) 2009-10 Hernando Barragan. All right reserved.
|
||||
Copyright 2011, Paul Stoffregen, paul@pjrc.com
|
||||
|
||||
This library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
This library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with this library; if not, write to the Free Software
|
||||
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
#ifndef String_class_h
|
||||
#define String_class_h
|
||||
#ifdef __cplusplus
|
||||
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <ctype.h>
|
||||
#include <avr/pgmspace.h>
|
||||
|
||||
// When compiling programs with this class, the following gcc parameters
|
||||
// dramatically increase performance and memory (RAM) efficiency, typically
|
||||
// with little or no increase in code size.
|
||||
// -felide-constructors
|
||||
// -std=c++0x
|
||||
|
||||
class __FlashStringHelper;
|
||||
#define F(string_literal) (reinterpret_cast<const __FlashStringHelper *>(PSTR(string_literal)))
|
||||
|
||||
// An inherited class for holding the result of a concatenation. These
|
||||
// result objects are assumed to be writable by subsequent concatenations.
|
||||
class StringSumHelper;
|
||||
|
||||
// The string class
|
||||
class String
|
||||
{
|
||||
// use a function pointer to allow for "if (s)" without the
|
||||
// complications of an operator bool(). for more information, see:
|
||||
// http://www.artima.com/cppsource/safebool.html
|
||||
typedef void (String::*StringIfHelperType)() const;
|
||||
void StringIfHelper() const {}
|
||||
|
||||
public:
|
||||
// constructors
|
||||
// creates a copy of the initial value.
|
||||
// if the initial value is null or invalid, or if memory allocation
|
||||
// fails, the string will be marked as invalid (i.e. "if (s)" will
|
||||
// be false).
|
||||
String(const char *cstr = "");
|
||||
String(const String &str);
|
||||
String(const __FlashStringHelper *str);
|
||||
#if __cplusplus >= 201103L || defined(__GXX_EXPERIMENTAL_CXX0X__)
|
||||
String(String &&rval);
|
||||
String(StringSumHelper &&rval);
|
||||
#endif
|
||||
explicit String(char c);
|
||||
explicit String(unsigned char, unsigned char base=10);
|
||||
explicit String(int, unsigned char base=10);
|
||||
explicit String(unsigned int, unsigned char base=10);
|
||||
explicit String(long, unsigned char base=10);
|
||||
explicit String(unsigned long, unsigned char base=10);
|
||||
explicit String(float, unsigned char decimalPlaces=2);
|
||||
explicit String(double, unsigned char decimalPlaces=2);
|
||||
~String(void);
|
||||
|
||||
// memory management
|
||||
// return true on success, false on failure (in which case, the string
|
||||
// is left unchanged). reserve(0), if successful, will validate an
|
||||
// invalid string (i.e., "if (s)" will be true afterwards)
|
||||
unsigned char reserve(unsigned int size);
|
||||
inline unsigned int length(void) const {return len;}
|
||||
|
||||
// creates a copy of the assigned value. if the value is null or
|
||||
// invalid, or if the memory allocation fails, the string will be
|
||||
// marked as invalid ("if (s)" will be false).
|
||||
String & operator = (const String &rhs);
|
||||
String & operator = (const char *cstr);
|
||||
String & operator = (const __FlashStringHelper *str);
|
||||
#if __cplusplus >= 201103L || defined(__GXX_EXPERIMENTAL_CXX0X__)
|
||||
String & operator = (String &&rval);
|
||||
String & operator = (StringSumHelper &&rval);
|
||||
#endif
|
||||
|
||||
// concatenate (works w/ built-in types)
|
||||
|
||||
// returns true on success, false on failure (in which case, the string
|
||||
// is left unchanged). if the argument is null or invalid, the
|
||||
// concatenation is considered unsucessful.
|
||||
unsigned char concat(const String &str);
|
||||
unsigned char concat(const char *cstr);
|
||||
unsigned char concat(char c);
|
||||
unsigned char concat(unsigned char c);
|
||||
unsigned char concat(int num);
|
||||
unsigned char concat(unsigned int num);
|
||||
unsigned char concat(long num);
|
||||
unsigned char concat(unsigned long num);
|
||||
unsigned char concat(float num);
|
||||
unsigned char concat(double num);
|
||||
unsigned char concat(const __FlashStringHelper * str);
|
||||
|
||||
// if there's not enough memory for the concatenated value, the string
|
||||
// will be left unchanged (but this isn't signalled in any way)
|
||||
String & operator += (const String &rhs) {concat(rhs); return (*this);}
|
||||
String & operator += (const char *cstr) {concat(cstr); return (*this);}
|
||||
String & operator += (char c) {concat(c); return (*this);}
|
||||
String & operator += (unsigned char num) {concat(num); return (*this);}
|
||||
String & operator += (int num) {concat(num); return (*this);}
|
||||
String & operator += (unsigned int num) {concat(num); return (*this);}
|
||||
String & operator += (long num) {concat(num); return (*this);}
|
||||
String & operator += (unsigned long num) {concat(num); return (*this);}
|
||||
String & operator += (float num) {concat(num); return (*this);}
|
||||
String & operator += (double num) {concat(num); return (*this);}
|
||||
String & operator += (const __FlashStringHelper *str){concat(str); return (*this);}
|
||||
|
||||
friend StringSumHelper & operator + (const StringSumHelper &lhs, const String &rhs);
|
||||
friend StringSumHelper & operator + (const StringSumHelper &lhs, const char *cstr);
|
||||
friend StringSumHelper & operator + (const StringSumHelper &lhs, char c);
|
||||
friend StringSumHelper & operator + (const StringSumHelper &lhs, unsigned char num);
|
||||
friend StringSumHelper & operator + (const StringSumHelper &lhs, int num);
|
||||
friend StringSumHelper & operator + (const StringSumHelper &lhs, unsigned int num);
|
||||
friend StringSumHelper & operator + (const StringSumHelper &lhs, long num);
|
||||
friend StringSumHelper & operator + (const StringSumHelper &lhs, unsigned long num);
|
||||
friend StringSumHelper & operator + (const StringSumHelper &lhs, float num);
|
||||
friend StringSumHelper & operator + (const StringSumHelper &lhs, double num);
|
||||
friend StringSumHelper & operator + (const StringSumHelper &lhs, const __FlashStringHelper *rhs);
|
||||
|
||||
// comparison (only works w/ Strings and "strings")
|
||||
operator StringIfHelperType() const { return buffer ? &String::StringIfHelper : 0; }
|
||||
int compareTo(const String &s) const;
|
||||
unsigned char equals(const String &s) const;
|
||||
unsigned char equals(const char *cstr) const;
|
||||
unsigned char operator == (const String &rhs) const {return equals(rhs);}
|
||||
unsigned char operator == (const char *cstr) const {return equals(cstr);}
|
||||
unsigned char operator != (const String &rhs) const {return !equals(rhs);}
|
||||
unsigned char operator != (const char *cstr) const {return !equals(cstr);}
|
||||
unsigned char operator < (const String &rhs) const;
|
||||
unsigned char operator > (const String &rhs) const;
|
||||
unsigned char operator <= (const String &rhs) const;
|
||||
unsigned char operator >= (const String &rhs) const;
|
||||
unsigned char equalsIgnoreCase(const String &s) const;
|
||||
unsigned char startsWith( const String &prefix) const;
|
||||
unsigned char startsWith(const String &prefix, unsigned int offset) const;
|
||||
unsigned char endsWith(const String &suffix) const;
|
||||
|
||||
// character acccess
|
||||
char charAt(unsigned int index) const;
|
||||
void setCharAt(unsigned int index, char c);
|
||||
char operator [] (unsigned int index) const;
|
||||
char& operator [] (unsigned int index);
|
||||
void getBytes(unsigned char *buf, unsigned int bufsize, unsigned int index=0) const;
|
||||
void toCharArray(char *buf, unsigned int bufsize, unsigned int index=0) const
|
||||
{getBytes((unsigned char *)buf, bufsize, index);}
|
||||
const char * c_str() const { return buffer; }
|
||||
|
||||
// search
|
||||
int indexOf( char ch ) const;
|
||||
int indexOf( char ch, unsigned int fromIndex ) const;
|
||||
int indexOf( const String &str ) const;
|
||||
int indexOf( const String &str, unsigned int fromIndex ) const;
|
||||
int lastIndexOf( char ch ) const;
|
||||
int lastIndexOf( char ch, unsigned int fromIndex ) const;
|
||||
int lastIndexOf( const String &str ) const;
|
||||
int lastIndexOf( const String &str, unsigned int fromIndex ) const;
|
||||
String substring( unsigned int beginIndex ) const { return substring(beginIndex, len); };
|
||||
String substring( unsigned int beginIndex, unsigned int endIndex ) const;
|
||||
|
||||
// modification
|
||||
void replace(char find, char replace);
|
||||
void replace(const String& find, const String& replace);
|
||||
void remove(unsigned int index);
|
||||
void remove(unsigned int index, unsigned int count);
|
||||
void toLowerCase(void);
|
||||
void toUpperCase(void);
|
||||
void trim(void);
|
||||
|
||||
// parsing/conversion
|
||||
long toInt(void) const;
|
||||
float toFloat(void) const;
|
||||
|
||||
protected:
|
||||
char *buffer; // the actual char array
|
||||
unsigned int capacity; // the array length minus one (for the '\0')
|
||||
unsigned int len; // the String length (not counting the '\0')
|
||||
protected:
|
||||
void init(void);
|
||||
void invalidate(void);
|
||||
unsigned char changeBuffer(unsigned int maxStrLen);
|
||||
unsigned char concat(const char *cstr, unsigned int length);
|
||||
|
||||
// copy and move
|
||||
String & copy(const char *cstr, unsigned int length);
|
||||
String & copy(const __FlashStringHelper *pstr, unsigned int length);
|
||||
#if __cplusplus >= 201103L || defined(__GXX_EXPERIMENTAL_CXX0X__)
|
||||
void move(String &rhs);
|
||||
#endif
|
||||
};
|
||||
|
||||
class StringSumHelper : public String
|
||||
{
|
||||
public:
|
||||
StringSumHelper(const String &s) : String(s) {}
|
||||
StringSumHelper(const char *p) : String(p) {}
|
||||
StringSumHelper(char c) : String(c) {}
|
||||
StringSumHelper(unsigned char num) : String(num) {}
|
||||
StringSumHelper(int num) : String(num) {}
|
||||
StringSumHelper(unsigned int num) : String(num) {}
|
||||
StringSumHelper(long num) : String(num) {}
|
||||
StringSumHelper(unsigned long num) : String(num) {}
|
||||
StringSumHelper(float num) : String(num) {}
|
||||
StringSumHelper(double num) : String(num) {}
|
||||
};
|
||||
|
||||
#endif // __cplusplus
|
||||
#endif // String_class_h
|
330
platform/osd-merkur/dev/arduino/Wire.cpp
Normal file
330
platform/osd-merkur/dev/arduino/Wire.cpp
Normal file
|
@ -0,0 +1,330 @@
|
|||
/*
|
||||
TwoWire.cpp - TWI/I2C library for Wiring & Arduino
|
||||
Copyright (c) 2006 Nicholas Zambetti. All right reserved.
|
||||
|
||||
This library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
This library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with this library; if not, write to the Free Software
|
||||
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
|
||||
Modified 2012 by Todd Krein (todd@krein.org) to implement repeated starts
|
||||
*/
|
||||
|
||||
extern "C" {
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <inttypes.h>
|
||||
#include "twi.h"
|
||||
}
|
||||
|
||||
#include "Wire.h"
|
||||
|
||||
// Initialize Class Variables //////////////////////////////////////////////////
|
||||
|
||||
uint8_t TwoWire::rxBuffer[BUFFER_LENGTH];
|
||||
uint8_t TwoWire::rxBufferIndex = 0;
|
||||
uint8_t TwoWire::rxBufferLength = 0;
|
||||
|
||||
uint8_t TwoWire::txAddress = 0;
|
||||
uint8_t TwoWire::txBuffer[BUFFER_LENGTH];
|
||||
uint8_t TwoWire::txBufferIndex = 0;
|
||||
uint8_t TwoWire::txBufferLength = 0;
|
||||
|
||||
uint8_t TwoWire::transmitting = 0;
|
||||
void (*TwoWire::user_onRequest)(void);
|
||||
void (*TwoWire::user_onReceive)(int);
|
||||
|
||||
// Constructors ////////////////////////////////////////////////////////////////
|
||||
|
||||
TwoWire::TwoWire()
|
||||
{
|
||||
}
|
||||
|
||||
// Public Methods //////////////////////////////////////////////////////////////
|
||||
|
||||
void TwoWire::begin(void)
|
||||
{
|
||||
rxBufferIndex = 0;
|
||||
rxBufferLength = 0;
|
||||
|
||||
txBufferIndex = 0;
|
||||
txBufferLength = 0;
|
||||
|
||||
twi_init();
|
||||
}
|
||||
|
||||
void TwoWire::begin(uint8_t address)
|
||||
{
|
||||
twi_setAddress(address);
|
||||
twi_attachSlaveTxEvent(onRequestService);
|
||||
twi_attachSlaveRxEvent(onReceiveService);
|
||||
begin();
|
||||
}
|
||||
|
||||
void TwoWire::begin(int address)
|
||||
{
|
||||
begin((uint8_t)address);
|
||||
}
|
||||
|
||||
void TwoWire::end(void)
|
||||
{
|
||||
twi_disable();
|
||||
}
|
||||
|
||||
void TwoWire::setClock(uint32_t frequency)
|
||||
{
|
||||
TWBR = ((F_CPU / frequency) - 16) / 2;
|
||||
}
|
||||
|
||||
uint8_t TwoWire::requestFrom(uint8_t address, uint8_t quantity, uint32_t iaddress, uint8_t isize, uint8_t sendStop)
|
||||
{
|
||||
if (isize > 0) {
|
||||
// send internal address; this mode allows sending a repeated start to access
|
||||
// some devices' internal registers. This function is executed by the hardware
|
||||
// TWI module on other processors (for example Due's TWI_IADR and TWI_MMR registers)
|
||||
|
||||
beginTransmission(address);
|
||||
|
||||
// the maximum size of internal address is 3 bytes
|
||||
if (isize > 3){
|
||||
isize = 3;
|
||||
}
|
||||
|
||||
// write internal register address - most significant byte first
|
||||
while (isize-- > 0)
|
||||
write((uint8_t)(iaddress >> (isize*8)));
|
||||
endTransmission(false);
|
||||
}
|
||||
|
||||
// clamp to buffer length
|
||||
if(quantity > BUFFER_LENGTH){
|
||||
quantity = BUFFER_LENGTH;
|
||||
}
|
||||
// perform blocking read into buffer
|
||||
uint8_t read = twi_readFrom(address, rxBuffer, quantity, sendStop);
|
||||
// set rx buffer iterator vars
|
||||
rxBufferIndex = 0;
|
||||
rxBufferLength = read;
|
||||
|
||||
return read;
|
||||
}
|
||||
|
||||
uint8_t TwoWire::requestFrom(uint8_t address, uint8_t quantity, uint8_t sendStop) {
|
||||
return requestFrom((uint8_t)address, (uint8_t)quantity, (uint32_t)0, (uint8_t)0, (uint8_t)sendStop);
|
||||
}
|
||||
|
||||
uint8_t TwoWire::requestFrom(uint8_t address, uint8_t quantity)
|
||||
{
|
||||
return requestFrom((uint8_t)address, (uint8_t)quantity, (uint8_t)true);
|
||||
}
|
||||
|
||||
uint8_t TwoWire::requestFrom(int address, int quantity)
|
||||
{
|
||||
return requestFrom((uint8_t)address, (uint8_t)quantity, (uint8_t)true);
|
||||
}
|
||||
|
||||
uint8_t TwoWire::requestFrom(int address, int quantity, int sendStop)
|
||||
{
|
||||
return requestFrom((uint8_t)address, (uint8_t)quantity, (uint8_t)sendStop);
|
||||
}
|
||||
|
||||
void TwoWire::beginTransmission(uint8_t address)
|
||||
{
|
||||
// indicate that we are transmitting
|
||||
transmitting = 1;
|
||||
// set address of targeted slave
|
||||
txAddress = address;
|
||||
// reset tx buffer iterator vars
|
||||
txBufferIndex = 0;
|
||||
txBufferLength = 0;
|
||||
}
|
||||
|
||||
void TwoWire::beginTransmission(int address)
|
||||
{
|
||||
beginTransmission((uint8_t)address);
|
||||
}
|
||||
|
||||
//
|
||||
// Originally, 'endTransmission' was an f(void) function.
|
||||
// It has been modified to take one parameter indicating
|
||||
// whether or not a STOP should be performed on the bus.
|
||||
// Calling endTransmission(false) allows a sketch to
|
||||
// perform a repeated start.
|
||||
//
|
||||
// WARNING: Nothing in the library keeps track of whether
|
||||
// the bus tenure has been properly ended with a STOP. It
|
||||
// is very possible to leave the bus in a hung state if
|
||||
// no call to endTransmission(true) is made. Some I2C
|
||||
// devices will behave oddly if they do not see a STOP.
|
||||
//
|
||||
uint8_t TwoWire::endTransmission(uint8_t sendStop)
|
||||
{
|
||||
// transmit buffer (blocking)
|
||||
int8_t ret = twi_writeTo(txAddress, txBuffer, txBufferLength, 1, sendStop);
|
||||
// reset tx buffer iterator vars
|
||||
txBufferIndex = 0;
|
||||
txBufferLength = 0;
|
||||
// indicate that we are done transmitting
|
||||
transmitting = 0;
|
||||
return ret;
|
||||
}
|
||||
|
||||
// This provides backwards compatibility with the original
|
||||
// definition, and expected behaviour, of endTransmission
|
||||
//
|
||||
uint8_t TwoWire::endTransmission(void)
|
||||
{
|
||||
return endTransmission(true);
|
||||
}
|
||||
|
||||
// must be called in:
|
||||
// slave tx event callback
|
||||
// or after beginTransmission(address)
|
||||
size_t TwoWire::write(uint8_t data)
|
||||
{
|
||||
if(transmitting){
|
||||
// in master transmitter mode
|
||||
// don't bother if buffer is full
|
||||
if(txBufferLength >= BUFFER_LENGTH){
|
||||
setWriteError();
|
||||
return 0;
|
||||
}
|
||||
// put byte in tx buffer
|
||||
txBuffer[txBufferIndex] = data;
|
||||
++txBufferIndex;
|
||||
// update amount in buffer
|
||||
txBufferLength = txBufferIndex;
|
||||
}else{
|
||||
// in slave send mode
|
||||
// reply to master
|
||||
twi_transmit(&data, 1);
|
||||
}
|
||||
return 1;
|
||||
}
|
||||
|
||||
// must be called in:
|
||||
// slave tx event callback
|
||||
// or after beginTransmission(address)
|
||||
size_t TwoWire::write(const uint8_t *data, size_t quantity)
|
||||
{
|
||||
if(transmitting){
|
||||
// in master transmitter mode
|
||||
for(size_t i = 0; i < quantity; ++i){
|
||||
write(data[i]);
|
||||
}
|
||||
}else{
|
||||
// in slave send mode
|
||||
// reply to master
|
||||
twi_transmit(data, quantity);
|
||||
}
|
||||
return quantity;
|
||||
}
|
||||
|
||||
// must be called in:
|
||||
// slave rx event callback
|
||||
// or after requestFrom(address, numBytes)
|
||||
int TwoWire::available(void)
|
||||
{
|
||||
return rxBufferLength - rxBufferIndex;
|
||||
}
|
||||
|
||||
// must be called in:
|
||||
// slave rx event callback
|
||||
// or after requestFrom(address, numBytes)
|
||||
int TwoWire::read(void)
|
||||
{
|
||||
int value = -1;
|
||||
|
||||
// get each successive byte on each call
|
||||
if(rxBufferIndex < rxBufferLength){
|
||||
value = rxBuffer[rxBufferIndex];
|
||||
++rxBufferIndex;
|
||||
}
|
||||
|
||||
return value;
|
||||
}
|
||||
|
||||
// must be called in:
|
||||
// slave rx event callback
|
||||
// or after requestFrom(address, numBytes)
|
||||
int TwoWire::peek(void)
|
||||
{
|
||||
int value = -1;
|
||||
|
||||
if(rxBufferIndex < rxBufferLength){
|
||||
value = rxBuffer[rxBufferIndex];
|
||||
}
|
||||
|
||||
return value;
|
||||
}
|
||||
|
||||
void TwoWire::flush(void)
|
||||
{
|
||||
// XXX: to be implemented.
|
||||
}
|
||||
|
||||
// behind the scenes function that is called when data is received
|
||||
void TwoWire::onReceiveService(uint8_t* inBytes, int numBytes)
|
||||
{
|
||||
// don't bother if user hasn't registered a callback
|
||||
if(!user_onReceive){
|
||||
return;
|
||||
}
|
||||
// don't bother if rx buffer is in use by a master requestFrom() op
|
||||
// i know this drops data, but it allows for slight stupidity
|
||||
// meaning, they may not have read all the master requestFrom() data yet
|
||||
if(rxBufferIndex < rxBufferLength){
|
||||
return;
|
||||
}
|
||||
// copy twi rx buffer into local read buffer
|
||||
// this enables new reads to happen in parallel
|
||||
for(uint8_t i = 0; i < numBytes; ++i){
|
||||
rxBuffer[i] = inBytes[i];
|
||||
}
|
||||
// set rx iterator vars
|
||||
rxBufferIndex = 0;
|
||||
rxBufferLength = numBytes;
|
||||
// alert user program
|
||||
user_onReceive(numBytes);
|
||||
}
|
||||
|
||||
// behind the scenes function that is called when data is requested
|
||||
void TwoWire::onRequestService(void)
|
||||
{
|
||||
// don't bother if user hasn't registered a callback
|
||||
if(!user_onRequest){
|
||||
return;
|
||||
}
|
||||
// reset tx buffer iterator vars
|
||||
// !!! this will kill any pending pre-master sendTo() activity
|
||||
txBufferIndex = 0;
|
||||
txBufferLength = 0;
|
||||
// alert user program
|
||||
user_onRequest();
|
||||
}
|
||||
|
||||
// sets function called on slave write
|
||||
void TwoWire::onReceive( void (*function)(int) )
|
||||
{
|
||||
user_onReceive = function;
|
||||
}
|
||||
|
||||
// sets function called on slave read
|
||||
void TwoWire::onRequest( void (*function)(void) )
|
||||
{
|
||||
user_onRequest = function;
|
||||
}
|
||||
|
||||
// Preinstantiate Objects //////////////////////////////////////////////////////
|
||||
|
||||
TwoWire Wire = TwoWire();
|
||||
|
85
platform/osd-merkur/dev/arduino/Wire.h
Normal file
85
platform/osd-merkur/dev/arduino/Wire.h
Normal file
|
@ -0,0 +1,85 @@
|
|||
/*
|
||||
TwoWire.h - TWI/I2C library for Arduino & Wiring
|
||||
Copyright (c) 2006 Nicholas Zambetti. All right reserved.
|
||||
|
||||
This library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
This library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with this library; if not, write to the Free Software
|
||||
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
|
||||
Modified 2012 by Todd Krein (todd@krein.org) to implement repeated starts
|
||||
*/
|
||||
|
||||
#ifndef TwoWire_h
|
||||
#define TwoWire_h
|
||||
|
||||
#include <inttypes.h>
|
||||
#include "Stream.h"
|
||||
|
||||
#define BUFFER_LENGTH 32
|
||||
|
||||
// WIRE_HAS_END means Wire has end()
|
||||
#define WIRE_HAS_END 1
|
||||
|
||||
class TwoWire : public Stream
|
||||
{
|
||||
private:
|
||||
static uint8_t rxBuffer[];
|
||||
static uint8_t rxBufferIndex;
|
||||
static uint8_t rxBufferLength;
|
||||
|
||||
static uint8_t txAddress;
|
||||
static uint8_t txBuffer[];
|
||||
static uint8_t txBufferIndex;
|
||||
static uint8_t txBufferLength;
|
||||
|
||||
static uint8_t transmitting;
|
||||
static void (*user_onRequest)(void);
|
||||
static void (*user_onReceive)(int);
|
||||
static void onRequestService(void);
|
||||
static void onReceiveService(uint8_t*, int);
|
||||
public:
|
||||
TwoWire();
|
||||
void begin();
|
||||
void begin(uint8_t);
|
||||
void begin(int);
|
||||
void end();
|
||||
void setClock(uint32_t);
|
||||
void beginTransmission(uint8_t);
|
||||
void beginTransmission(int);
|
||||
uint8_t endTransmission(void);
|
||||
uint8_t endTransmission(uint8_t);
|
||||
uint8_t requestFrom(uint8_t, uint8_t);
|
||||
uint8_t requestFrom(uint8_t, uint8_t, uint8_t);
|
||||
uint8_t requestFrom(uint8_t, uint8_t, uint32_t, uint8_t, uint8_t);
|
||||
uint8_t requestFrom(int, int);
|
||||
uint8_t requestFrom(int, int, int);
|
||||
virtual size_t write(uint8_t);
|
||||
virtual size_t write(const uint8_t *, size_t);
|
||||
virtual int available(void);
|
||||
virtual int read(void);
|
||||
virtual int peek(void);
|
||||
virtual void flush(void);
|
||||
void onReceive( void (*)(int) );
|
||||
void onRequest( void (*)(void) );
|
||||
|
||||
inline size_t write(unsigned long n) { return write((uint8_t)n); }
|
||||
inline size_t write(long n) { return write((uint8_t)n); }
|
||||
inline size_t write(unsigned int n) { return write((uint8_t)n); }
|
||||
inline size_t write(int n) { return write((uint8_t)n); }
|
||||
using Print::write;
|
||||
};
|
||||
|
||||
extern TwoWire Wire;
|
||||
|
||||
#endif
|
||||
|
36
platform/osd-merkur/dev/arduino/new.cpp
Normal file
36
platform/osd-merkur/dev/arduino/new.cpp
Normal file
|
@ -0,0 +1,36 @@
|
|||
/*
|
||||
Copyright (c) 2014 Arduino. All right reserved.
|
||||
|
||||
This library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
This library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
||||
See the GNU Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with this library; if not, write to the Free Software
|
||||
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
#include <stdlib.h>
|
||||
|
||||
void *operator new(size_t size) {
|
||||
return malloc(size);
|
||||
}
|
||||
|
||||
void *operator new[](size_t size) {
|
||||
return malloc(size);
|
||||
}
|
||||
|
||||
void operator delete(void * ptr) {
|
||||
free(ptr);
|
||||
}
|
||||
|
||||
void operator delete[](void * ptr) {
|
||||
free(ptr);
|
||||
}
|
||||
|
30
platform/osd-merkur/dev/arduino/new.h
Normal file
30
platform/osd-merkur/dev/arduino/new.h
Normal file
|
@ -0,0 +1,30 @@
|
|||
/*
|
||||
Copyright (c) 2014 Arduino. All right reserved.
|
||||
|
||||
This library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
This library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
||||
See the GNU Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with this library; if not, write to the Free Software
|
||||
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
#ifndef NEW_H
|
||||
#define NEW_H
|
||||
|
||||
#include <stdlib.h>
|
||||
|
||||
void * operator new(size_t size);
|
||||
void * operator new[](size_t size);
|
||||
void operator delete(void * ptr);
|
||||
void operator delete[](void * ptr);
|
||||
|
||||
#endif
|
||||
|
545
platform/osd-merkur/dev/arduino/twi.c
Normal file
545
platform/osd-merkur/dev/arduino/twi.c
Normal file
|
@ -0,0 +1,545 @@
|
|||
/*
|
||||
twi.c - TWI/I2C library for Wiring & Arduino
|
||||
Copyright (c) 2006 Nicholas Zambetti. All right reserved.
|
||||
|
||||
This library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
This library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with this library; if not, write to the Free Software
|
||||
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
|
||||
Modified 2012 by Todd Krein (todd@krein.org) to implement repeated starts
|
||||
*/
|
||||
|
||||
#include <math.h>
|
||||
#include <stdlib.h>
|
||||
#include <inttypes.h>
|
||||
#include <avr/io.h>
|
||||
#include <avr/interrupt.h>
|
||||
#include <compat/twi.h>
|
||||
#include "Arduino.h" // for digitalWrite
|
||||
|
||||
#ifndef cbi
|
||||
#define cbi(sfr, bit) (_SFR_BYTE(sfr) &= ~_BV(bit))
|
||||
#endif
|
||||
|
||||
#ifndef sbi
|
||||
#define sbi(sfr, bit) (_SFR_BYTE(sfr) |= _BV(bit))
|
||||
#endif
|
||||
|
||||
#include "pins_arduino.h"
|
||||
#include "twi.h"
|
||||
|
||||
static volatile uint8_t twi_state;
|
||||
static volatile uint8_t twi_slarw;
|
||||
static volatile uint8_t twi_sendStop; // should the transaction end with a stop
|
||||
static volatile uint8_t twi_inRepStart; // in the middle of a repeated start
|
||||
|
||||
static void (*twi_onSlaveTransmit)(void);
|
||||
static void (*twi_onSlaveReceive)(uint8_t*, int);
|
||||
|
||||
static uint8_t twi_masterBuffer[TWI_BUFFER_LENGTH];
|
||||
static volatile uint8_t twi_masterBufferIndex;
|
||||
static volatile uint8_t twi_masterBufferLength;
|
||||
|
||||
static uint8_t twi_txBuffer[TWI_BUFFER_LENGTH];
|
||||
static volatile uint8_t twi_txBufferIndex;
|
||||
static volatile uint8_t twi_txBufferLength;
|
||||
|
||||
static uint8_t twi_rxBuffer[TWI_BUFFER_LENGTH];
|
||||
static volatile uint8_t twi_rxBufferIndex;
|
||||
|
||||
static volatile uint8_t twi_error;
|
||||
|
||||
/*
|
||||
* Function twi_init
|
||||
* Desc readys twi pins and sets twi bitrate
|
||||
* Input none
|
||||
* Output none
|
||||
*/
|
||||
void twi_init(void)
|
||||
{
|
||||
// initialize state
|
||||
twi_state = TWI_READY;
|
||||
twi_sendStop = true; // default value
|
||||
twi_inRepStart = false;
|
||||
|
||||
// activate internal pullups for twi.
|
||||
digitalWrite(SDA, 1);
|
||||
digitalWrite(SCL, 1);
|
||||
|
||||
// initialize twi prescaler and bit rate
|
||||
cbi(TWSR, TWPS0);
|
||||
cbi(TWSR, TWPS1);
|
||||
TWBR = ((F_CPU / TWI_FREQ) - 16) / 2;
|
||||
|
||||
/* twi bit rate formula from atmega128 manual pg 204
|
||||
SCL Frequency = CPU Clock Frequency / (16 + (2 * TWBR))
|
||||
note: TWBR should be 10 or higher for master mode
|
||||
It is 72 for a 16mhz Wiring board with 100kHz TWI */
|
||||
|
||||
// enable twi module, acks, and twi interrupt
|
||||
TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWEA);
|
||||
}
|
||||
|
||||
/*
|
||||
* Function twi_disable
|
||||
* Desc disables twi pins
|
||||
* Input none
|
||||
* Output none
|
||||
*/
|
||||
void twi_disable(void)
|
||||
{
|
||||
// disable twi module, acks, and twi interrupt
|
||||
TWCR &= ~(_BV(TWEN) | _BV(TWIE) | _BV(TWEA));
|
||||
|
||||
// deactivate internal pullups for twi.
|
||||
digitalWrite(SDA, 0);
|
||||
digitalWrite(SCL, 0);
|
||||
}
|
||||
|
||||
/*
|
||||
* Function twi_slaveInit
|
||||
* Desc sets slave address and enables interrupt
|
||||
* Input none
|
||||
* Output none
|
||||
*/
|
||||
void twi_setAddress(uint8_t address)
|
||||
{
|
||||
// set twi slave address (skip over TWGCE bit)
|
||||
TWAR = address << 1;
|
||||
}
|
||||
|
||||
/*
|
||||
* Function twi_readFrom
|
||||
* Desc attempts to become twi bus master and read a
|
||||
* series of bytes from a device on the bus
|
||||
* Input address: 7bit i2c device address
|
||||
* data: pointer to byte array
|
||||
* length: number of bytes to read into array
|
||||
* sendStop: Boolean indicating whether to send a stop at the end
|
||||
* Output number of bytes read
|
||||
*/
|
||||
uint8_t twi_readFrom(uint8_t address, uint8_t* data, uint8_t length, uint8_t sendStop)
|
||||
{
|
||||
uint8_t i;
|
||||
|
||||
// ensure data will fit into buffer
|
||||
if(TWI_BUFFER_LENGTH < length){
|
||||
return 0;
|
||||
}
|
||||
|
||||
// wait until twi is ready, become master receiver
|
||||
while(TWI_READY != twi_state){
|
||||
continue;
|
||||
}
|
||||
twi_state = TWI_MRX;
|
||||
twi_sendStop = sendStop;
|
||||
// reset error state (0xFF.. no error occured)
|
||||
twi_error = 0xFF;
|
||||
|
||||
// initialize buffer iteration vars
|
||||
twi_masterBufferIndex = 0;
|
||||
twi_masterBufferLength = length-1; // This is not intuitive, read on...
|
||||
// On receive, the previously configured ACK/NACK setting is transmitted in
|
||||
// response to the received byte before the interrupt is signalled.
|
||||
// Therefor we must actually set NACK when the _next_ to last byte is
|
||||
// received, causing that NACK to be sent in response to receiving the last
|
||||
// expected byte of data.
|
||||
|
||||
// build sla+w, slave device address + w bit
|
||||
twi_slarw = TW_READ;
|
||||
twi_slarw |= address << 1;
|
||||
|
||||
if (true == twi_inRepStart) {
|
||||
// if we're in the repeated start state, then we've already sent the start,
|
||||
// (@@@ we hope), and the TWI statemachine is just waiting for the address byte.
|
||||
// We need to remove ourselves from the repeated start state before we enable interrupts,
|
||||
// since the ISR is ASYNC, and we could get confused if we hit the ISR before cleaning
|
||||
// up. Also, don't enable the START interrupt. There may be one pending from the
|
||||
// repeated start that we sent outselves, and that would really confuse things.
|
||||
twi_inRepStart = false; // remember, we're dealing with an ASYNC ISR
|
||||
do {
|
||||
TWDR = twi_slarw;
|
||||
} while(TWCR & _BV(TWWC));
|
||||
TWCR = _BV(TWINT) | _BV(TWEA) | _BV(TWEN) | _BV(TWIE); // enable INTs, but not START
|
||||
}
|
||||
else
|
||||
// send start condition
|
||||
TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWEA) | _BV(TWINT) | _BV(TWSTA);
|
||||
|
||||
// wait for read operation to complete
|
||||
while(TWI_MRX == twi_state){
|
||||
continue;
|
||||
}
|
||||
|
||||
if (twi_masterBufferIndex < length)
|
||||
length = twi_masterBufferIndex;
|
||||
|
||||
// copy twi buffer to data
|
||||
for(i = 0; i < length; ++i){
|
||||
data[i] = twi_masterBuffer[i];
|
||||
}
|
||||
|
||||
return length;
|
||||
}
|
||||
|
||||
/*
|
||||
* Function twi_writeTo
|
||||
* Desc attempts to become twi bus master and write a
|
||||
* series of bytes to a device on the bus
|
||||
* Input address: 7bit i2c device address
|
||||
* data: pointer to byte array
|
||||
* length: number of bytes in array
|
||||
* wait: boolean indicating to wait for write or not
|
||||
* sendStop: boolean indicating whether or not to send a stop at the end
|
||||
* Output 0 .. success
|
||||
* 1 .. length to long for buffer
|
||||
* 2 .. address send, NACK received
|
||||
* 3 .. data send, NACK received
|
||||
* 4 .. other twi error (lost bus arbitration, bus error, ..)
|
||||
*/
|
||||
uint8_t twi_writeTo(uint8_t address, uint8_t* data, uint8_t length, uint8_t wait, uint8_t sendStop)
|
||||
{
|
||||
uint8_t i;
|
||||
|
||||
// ensure data will fit into buffer
|
||||
if(TWI_BUFFER_LENGTH < length){
|
||||
return 1;
|
||||
}
|
||||
|
||||
// wait until twi is ready, become master transmitter
|
||||
while(TWI_READY != twi_state){
|
||||
continue;
|
||||
}
|
||||
twi_state = TWI_MTX;
|
||||
twi_sendStop = sendStop;
|
||||
// reset error state (0xFF.. no error occured)
|
||||
twi_error = 0xFF;
|
||||
|
||||
// initialize buffer iteration vars
|
||||
twi_masterBufferIndex = 0;
|
||||
twi_masterBufferLength = length;
|
||||
|
||||
// copy data to twi buffer
|
||||
for(i = 0; i < length; ++i){
|
||||
twi_masterBuffer[i] = data[i];
|
||||
}
|
||||
|
||||
// build sla+w, slave device address + w bit
|
||||
twi_slarw = TW_WRITE;
|
||||
twi_slarw |= address << 1;
|
||||
|
||||
// if we're in a repeated start, then we've already sent the START
|
||||
// in the ISR. Don't do it again.
|
||||
//
|
||||
if (true == twi_inRepStart) {
|
||||
// if we're in the repeated start state, then we've already sent the start,
|
||||
// (@@@ we hope), and the TWI statemachine is just waiting for the address byte.
|
||||
// We need to remove ourselves from the repeated start state before we enable interrupts,
|
||||
// since the ISR is ASYNC, and we could get confused if we hit the ISR before cleaning
|
||||
// up. Also, don't enable the START interrupt. There may be one pending from the
|
||||
// repeated start that we sent outselves, and that would really confuse things.
|
||||
twi_inRepStart = false; // remember, we're dealing with an ASYNC ISR
|
||||
do {
|
||||
TWDR = twi_slarw;
|
||||
} while(TWCR & _BV(TWWC));
|
||||
TWCR = _BV(TWINT) | _BV(TWEA) | _BV(TWEN) | _BV(TWIE); // enable INTs, but not START
|
||||
}
|
||||
else
|
||||
// send start condition
|
||||
TWCR = _BV(TWINT) | _BV(TWEA) | _BV(TWEN) | _BV(TWIE) | _BV(TWSTA); // enable INTs
|
||||
|
||||
// wait for write operation to complete
|
||||
while(wait && (TWI_MTX == twi_state)){
|
||||
continue;
|
||||
}
|
||||
|
||||
if (twi_error == 0xFF)
|
||||
return 0; // success
|
||||
else if (twi_error == TW_MT_SLA_NACK)
|
||||
return 2; // error: address send, nack received
|
||||
else if (twi_error == TW_MT_DATA_NACK)
|
||||
return 3; // error: data send, nack received
|
||||
else
|
||||
return 4; // other twi error
|
||||
}
|
||||
|
||||
/*
|
||||
* Function twi_transmit
|
||||
* Desc fills slave tx buffer with data
|
||||
* must be called in slave tx event callback
|
||||
* Input data: pointer to byte array
|
||||
* length: number of bytes in array
|
||||
* Output 1 length too long for buffer
|
||||
* 2 not slave transmitter
|
||||
* 0 ok
|
||||
*/
|
||||
uint8_t twi_transmit(const uint8_t* data, uint8_t length)
|
||||
{
|
||||
uint8_t i;
|
||||
|
||||
// ensure data will fit into buffer
|
||||
if(TWI_BUFFER_LENGTH < length){
|
||||
return 1;
|
||||
}
|
||||
|
||||
// ensure we are currently a slave transmitter
|
||||
if(TWI_STX != twi_state){
|
||||
return 2;
|
||||
}
|
||||
|
||||
// set length and copy data into tx buffer
|
||||
twi_txBufferLength = length;
|
||||
for(i = 0; i < length; ++i){
|
||||
twi_txBuffer[i] = data[i];
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* Function twi_attachSlaveRxEvent
|
||||
* Desc sets function called before a slave read operation
|
||||
* Input function: callback function to use
|
||||
* Output none
|
||||
*/
|
||||
void twi_attachSlaveRxEvent( void (*function)(uint8_t*, int) )
|
||||
{
|
||||
twi_onSlaveReceive = function;
|
||||
}
|
||||
|
||||
/*
|
||||
* Function twi_attachSlaveTxEvent
|
||||
* Desc sets function called before a slave write operation
|
||||
* Input function: callback function to use
|
||||
* Output none
|
||||
*/
|
||||
void twi_attachSlaveTxEvent( void (*function)(void) )
|
||||
{
|
||||
twi_onSlaveTransmit = function;
|
||||
}
|
||||
|
||||
/*
|
||||
* Function twi_reply
|
||||
* Desc sends byte or readys receive line
|
||||
* Input ack: byte indicating to ack or to nack
|
||||
* Output none
|
||||
*/
|
||||
void twi_reply(uint8_t ack)
|
||||
{
|
||||
// transmit master read ready signal, with or without ack
|
||||
if(ack){
|
||||
TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWINT) | _BV(TWEA);
|
||||
}else{
|
||||
TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWINT);
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Function twi_stop
|
||||
* Desc relinquishes bus master status
|
||||
* Input none
|
||||
* Output none
|
||||
*/
|
||||
void twi_stop(void)
|
||||
{
|
||||
// send stop condition
|
||||
TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWEA) | _BV(TWINT) | _BV(TWSTO);
|
||||
|
||||
// wait for stop condition to be exectued on bus
|
||||
// TWINT is not set after a stop condition!
|
||||
while(TWCR & _BV(TWSTO)){
|
||||
continue;
|
||||
}
|
||||
|
||||
// update twi state
|
||||
twi_state = TWI_READY;
|
||||
}
|
||||
|
||||
/*
|
||||
* Function twi_releaseBus
|
||||
* Desc releases bus control
|
||||
* Input none
|
||||
* Output none
|
||||
*/
|
||||
void twi_releaseBus(void)
|
||||
{
|
||||
// release bus
|
||||
TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWEA) | _BV(TWINT);
|
||||
|
||||
// update twi state
|
||||
twi_state = TWI_READY;
|
||||
}
|
||||
|
||||
ISR(TWI_vect)
|
||||
{
|
||||
switch(TW_STATUS){
|
||||
// All Master
|
||||
case TW_START: // sent start condition
|
||||
case TW_REP_START: // sent repeated start condition
|
||||
// copy device address and r/w bit to output register and ack
|
||||
TWDR = twi_slarw;
|
||||
twi_reply(1);
|
||||
break;
|
||||
|
||||
// Master Transmitter
|
||||
case TW_MT_SLA_ACK: // slave receiver acked address
|
||||
case TW_MT_DATA_ACK: // slave receiver acked data
|
||||
// if there is data to send, send it, otherwise stop
|
||||
if(twi_masterBufferIndex < twi_masterBufferLength){
|
||||
// copy data to output register and ack
|
||||
TWDR = twi_masterBuffer[twi_masterBufferIndex++];
|
||||
twi_reply(1);
|
||||
}else{
|
||||
if (twi_sendStop)
|
||||
twi_stop();
|
||||
else {
|
||||
twi_inRepStart = true; // we're gonna send the START
|
||||
// don't enable the interrupt. We'll generate the start, but we
|
||||
// avoid handling the interrupt until we're in the next transaction,
|
||||
// at the point where we would normally issue the start.
|
||||
TWCR = _BV(TWINT) | _BV(TWSTA)| _BV(TWEN) ;
|
||||
twi_state = TWI_READY;
|
||||
}
|
||||
}
|
||||
break;
|
||||
case TW_MT_SLA_NACK: // address sent, nack received
|
||||
twi_error = TW_MT_SLA_NACK;
|
||||
twi_stop();
|
||||
break;
|
||||
case TW_MT_DATA_NACK: // data sent, nack received
|
||||
twi_error = TW_MT_DATA_NACK;
|
||||
twi_stop();
|
||||
break;
|
||||
case TW_MT_ARB_LOST: // lost bus arbitration
|
||||
twi_error = TW_MT_ARB_LOST;
|
||||
twi_releaseBus();
|
||||
break;
|
||||
|
||||
// Master Receiver
|
||||
case TW_MR_DATA_ACK: // data received, ack sent
|
||||
// put byte into buffer
|
||||
twi_masterBuffer[twi_masterBufferIndex++] = TWDR;
|
||||
case TW_MR_SLA_ACK: // address sent, ack received
|
||||
// ack if more bytes are expected, otherwise nack
|
||||
if(twi_masterBufferIndex < twi_masterBufferLength){
|
||||
twi_reply(1);
|
||||
}else{
|
||||
twi_reply(0);
|
||||
}
|
||||
break;
|
||||
case TW_MR_DATA_NACK: // data received, nack sent
|
||||
// put final byte into buffer
|
||||
twi_masterBuffer[twi_masterBufferIndex++] = TWDR;
|
||||
if (twi_sendStop)
|
||||
twi_stop();
|
||||
else {
|
||||
twi_inRepStart = true; // we're gonna send the START
|
||||
// don't enable the interrupt. We'll generate the start, but we
|
||||
// avoid handling the interrupt until we're in the next transaction,
|
||||
// at the point where we would normally issue the start.
|
||||
TWCR = _BV(TWINT) | _BV(TWSTA)| _BV(TWEN) ;
|
||||
twi_state = TWI_READY;
|
||||
}
|
||||
break;
|
||||
case TW_MR_SLA_NACK: // address sent, nack received
|
||||
twi_stop();
|
||||
break;
|
||||
// TW_MR_ARB_LOST handled by TW_MT_ARB_LOST case
|
||||
|
||||
// Slave Receiver
|
||||
case TW_SR_SLA_ACK: // addressed, returned ack
|
||||
case TW_SR_GCALL_ACK: // addressed generally, returned ack
|
||||
case TW_SR_ARB_LOST_SLA_ACK: // lost arbitration, returned ack
|
||||
case TW_SR_ARB_LOST_GCALL_ACK: // lost arbitration, returned ack
|
||||
// enter slave receiver mode
|
||||
twi_state = TWI_SRX;
|
||||
// indicate that rx buffer can be overwritten and ack
|
||||
twi_rxBufferIndex = 0;
|
||||
twi_reply(1);
|
||||
break;
|
||||
case TW_SR_DATA_ACK: // data received, returned ack
|
||||
case TW_SR_GCALL_DATA_ACK: // data received generally, returned ack
|
||||
// if there is still room in the rx buffer
|
||||
if(twi_rxBufferIndex < TWI_BUFFER_LENGTH){
|
||||
// put byte in buffer and ack
|
||||
twi_rxBuffer[twi_rxBufferIndex++] = TWDR;
|
||||
twi_reply(1);
|
||||
}else{
|
||||
// otherwise nack
|
||||
twi_reply(0);
|
||||
}
|
||||
break;
|
||||
case TW_SR_STOP: // stop or repeated start condition received
|
||||
// ack future responses and leave slave receiver state
|
||||
twi_releaseBus();
|
||||
// put a null char after data if there's room
|
||||
if(twi_rxBufferIndex < TWI_BUFFER_LENGTH){
|
||||
twi_rxBuffer[twi_rxBufferIndex] = '\0';
|
||||
}
|
||||
// callback to user defined callback
|
||||
twi_onSlaveReceive(twi_rxBuffer, twi_rxBufferIndex);
|
||||
// since we submit rx buffer to "wire" library, we can reset it
|
||||
twi_rxBufferIndex = 0;
|
||||
break;
|
||||
case TW_SR_DATA_NACK: // data received, returned nack
|
||||
case TW_SR_GCALL_DATA_NACK: // data received generally, returned nack
|
||||
// nack back at master
|
||||
twi_reply(0);
|
||||
break;
|
||||
|
||||
// Slave Transmitter
|
||||
case TW_ST_SLA_ACK: // addressed, returned ack
|
||||
case TW_ST_ARB_LOST_SLA_ACK: // arbitration lost, returned ack
|
||||
// enter slave transmitter mode
|
||||
twi_state = TWI_STX;
|
||||
// ready the tx buffer index for iteration
|
||||
twi_txBufferIndex = 0;
|
||||
// set tx buffer length to be zero, to verify if user changes it
|
||||
twi_txBufferLength = 0;
|
||||
// request for txBuffer to be filled and length to be set
|
||||
// note: user must call twi_transmit(bytes, length) to do this
|
||||
twi_onSlaveTransmit();
|
||||
// if they didn't change buffer & length, initialize it
|
||||
if(0 == twi_txBufferLength){
|
||||
twi_txBufferLength = 1;
|
||||
twi_txBuffer[0] = 0x00;
|
||||
}
|
||||
// transmit first byte from buffer, fall
|
||||
case TW_ST_DATA_ACK: // byte sent, ack returned
|
||||
// copy data to output register
|
||||
TWDR = twi_txBuffer[twi_txBufferIndex++];
|
||||
// if there is more to send, ack, otherwise nack
|
||||
if(twi_txBufferIndex < twi_txBufferLength){
|
||||
twi_reply(1);
|
||||
}else{
|
||||
twi_reply(0);
|
||||
}
|
||||
break;
|
||||
case TW_ST_DATA_NACK: // received nack, we are done
|
||||
case TW_ST_LAST_DATA: // received ack, but we are done already!
|
||||
// ack future responses
|
||||
twi_reply(1);
|
||||
// leave slave receiver state
|
||||
twi_state = TWI_READY;
|
||||
break;
|
||||
|
||||
// All
|
||||
case TW_NO_INFO: // no state information
|
||||
break;
|
||||
case TW_BUS_ERROR: // bus error, illegal stop/start
|
||||
twi_error = TW_BUS_ERROR;
|
||||
twi_stop();
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
54
platform/osd-merkur/dev/arduino/twi.h
Normal file
54
platform/osd-merkur/dev/arduino/twi.h
Normal file
|
@ -0,0 +1,54 @@
|
|||
/*
|
||||
twi.h - TWI/I2C library for Wiring & Arduino
|
||||
Copyright (c) 2006 Nicholas Zambetti. All right reserved.
|
||||
|
||||
This library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
This library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with this library; if not, write to the Free Software
|
||||
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
#ifndef twi_h
|
||||
#define twi_h
|
||||
|
||||
#include <inttypes.h>
|
||||
|
||||
//#define ATMEGA8
|
||||
|
||||
#ifndef TWI_FREQ
|
||||
#define TWI_FREQ 100000L
|
||||
#endif
|
||||
|
||||
#ifndef TWI_BUFFER_LENGTH
|
||||
#define TWI_BUFFER_LENGTH 32
|
||||
#endif
|
||||
|
||||
#define TWI_READY 0
|
||||
#define TWI_MRX 1
|
||||
#define TWI_MTX 2
|
||||
#define TWI_SRX 3
|
||||
#define TWI_STX 4
|
||||
|
||||
void twi_init(void);
|
||||
void twi_disable(void);
|
||||
void twi_setAddress(uint8_t);
|
||||
uint8_t twi_readFrom(uint8_t, uint8_t*, uint8_t, uint8_t);
|
||||
uint8_t twi_writeTo(uint8_t, uint8_t*, uint8_t, uint8_t, uint8_t);
|
||||
uint8_t twi_transmit(const uint8_t*, uint8_t);
|
||||
void twi_attachSlaveRxEvent( void (*)(uint8_t*, int) );
|
||||
void twi_attachSlaveTxEvent( void (*)(void) );
|
||||
void twi_reply(uint8_t);
|
||||
void twi_stop(void);
|
||||
void twi_releaseBus(void);
|
||||
|
||||
#endif
|
||||
|
40
platform/osd-merkur/dev/old/Printable.h
Normal file
40
platform/osd-merkur/dev/old/Printable.h
Normal file
|
@ -0,0 +1,40 @@
|
|||
/*
|
||||
Printable.h - Interface class that allows printing of complex types
|
||||
Copyright (c) 2011 Adrian McEwen. All right reserved.
|
||||
|
||||
This library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
This library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with this library; if not, write to the Free Software
|
||||
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
#ifndef Printable_h
|
||||
#define Printable_h
|
||||
|
||||
#include <new.h>
|
||||
|
||||
class Print;
|
||||
|
||||
/** The Printable class provides a way for new classes to allow themselves to be printed.
|
||||
By deriving from Printable and implementing the printTo method, it will then be possible
|
||||
for users to print out instances of this class by passing them into the usual
|
||||
Print::print and Print::println methods.
|
||||
*/
|
||||
|
||||
class Printable
|
||||
{
|
||||
public:
|
||||
virtual size_t printTo(Print& p) const = 0;
|
||||
};
|
||||
|
||||
#endif
|
||||
|
270
platform/osd-merkur/dev/old/Stream.cpp
Normal file
270
platform/osd-merkur/dev/old/Stream.cpp
Normal file
|
@ -0,0 +1,270 @@
|
|||
/*
|
||||
Stream.cpp - adds parsing methods to Stream class
|
||||
Copyright (c) 2008 David A. Mellis. All right reserved.
|
||||
|
||||
This library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
This library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with this library; if not, write to the Free Software
|
||||
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
|
||||
Created July 2011
|
||||
parsing functions based on TextFinder library by Michael Margolis
|
||||
*/
|
||||
|
||||
#include "Arduino.h"
|
||||
#include "Stream.h"
|
||||
|
||||
#define PARSE_TIMEOUT 1000 // default number of milli-seconds to wait
|
||||
#define NO_SKIP_CHAR 1 // a magic char not found in a valid ASCII numeric field
|
||||
|
||||
// private method to read stream with timeout
|
||||
int Stream::timedRead()
|
||||
{
|
||||
int c;
|
||||
_startMillis = millis();
|
||||
do {
|
||||
c = read();
|
||||
if (c >= 0) return c;
|
||||
} while(millis() - _startMillis < _timeout);
|
||||
return -1; // -1 indicates timeout
|
||||
}
|
||||
|
||||
// private method to peek stream with timeout
|
||||
int Stream::timedPeek()
|
||||
{
|
||||
int c;
|
||||
_startMillis = millis();
|
||||
do {
|
||||
c = peek();
|
||||
if (c >= 0) return c;
|
||||
} while(millis() - _startMillis < _timeout);
|
||||
return -1; // -1 indicates timeout
|
||||
}
|
||||
|
||||
// returns peek of the next digit in the stream or -1 if timeout
|
||||
// discards non-numeric characters
|
||||
int Stream::peekNextDigit()
|
||||
{
|
||||
int c;
|
||||
while (1) {
|
||||
c = timedPeek();
|
||||
if (c < 0) return c; // timeout
|
||||
if (c == '-') return c;
|
||||
if (c >= '0' && c <= '9') return c;
|
||||
read(); // discard non-numeric
|
||||
}
|
||||
}
|
||||
|
||||
// Public Methods
|
||||
//////////////////////////////////////////////////////////////
|
||||
|
||||
void Stream::setTimeout(unsigned long timeout) // sets the maximum number of milliseconds to wait
|
||||
{
|
||||
_timeout = timeout;
|
||||
}
|
||||
|
||||
// find returns true if the target string is found
|
||||
bool Stream::find(char *target)
|
||||
{
|
||||
return findUntil(target, NULL);
|
||||
}
|
||||
|
||||
// reads data from the stream until the target string of given length is found
|
||||
// returns true if target string is found, false if timed out
|
||||
bool Stream::find(char *target, size_t length)
|
||||
{
|
||||
return findUntil(target, length, NULL, 0);
|
||||
}
|
||||
|
||||
// as find but search ends if the terminator string is found
|
||||
bool Stream::findUntil(char *target, char *terminator)
|
||||
{
|
||||
return findUntil(target, strlen(target), terminator, strlen(terminator));
|
||||
}
|
||||
|
||||
// reads data from the stream until the target string of the given length is found
|
||||
// search terminated if the terminator string is found
|
||||
// returns true if target string is found, false if terminated or timed out
|
||||
bool Stream::findUntil(char *target, size_t targetLen, char *terminator, size_t termLen)
|
||||
{
|
||||
size_t index = 0; // maximum target string length is 64k bytes!
|
||||
size_t termIndex = 0;
|
||||
int c;
|
||||
|
||||
if( *target == 0)
|
||||
return true; // return true if target is a null string
|
||||
while( (c = timedRead()) > 0){
|
||||
|
||||
if(c != target[index])
|
||||
index = 0; // reset index if any char does not match
|
||||
|
||||
if( c == target[index]){
|
||||
//////Serial.print("found "); Serial.write(c); Serial.print("index now"); Serial.println(index+1);
|
||||
if(++index >= targetLen){ // return true if all chars in the target match
|
||||
return true;
|
||||
}
|
||||
}
|
||||
|
||||
if(termLen > 0 && c == terminator[termIndex]){
|
||||
if(++termIndex >= termLen)
|
||||
return false; // return false if terminate string found before target string
|
||||
}
|
||||
else
|
||||
termIndex = 0;
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
|
||||
// returns the first valid (long) integer value from the current position.
|
||||
// initial characters that are not digits (or the minus sign) are skipped
|
||||
// function is terminated by the first character that is not a digit.
|
||||
long Stream::parseInt()
|
||||
{
|
||||
return parseInt(NO_SKIP_CHAR); // terminate on first non-digit character (or timeout)
|
||||
}
|
||||
|
||||
// as above but a given skipChar is ignored
|
||||
// this allows format characters (typically commas) in values to be ignored
|
||||
long Stream::parseInt(char skipChar)
|
||||
{
|
||||
boolean isNegative = false;
|
||||
long value = 0;
|
||||
int c;
|
||||
|
||||
c = peekNextDigit();
|
||||
// ignore non numeric leading characters
|
||||
if(c < 0)
|
||||
return 0; // zero returned if timeout
|
||||
|
||||
do{
|
||||
if(c == skipChar)
|
||||
; // ignore this charactor
|
||||
else if(c == '-')
|
||||
isNegative = true;
|
||||
else if(c >= '0' && c <= '9') // is c a digit?
|
||||
value = value * 10 + c - '0';
|
||||
read(); // consume the character we got with peek
|
||||
c = timedPeek();
|
||||
}
|
||||
while( (c >= '0' && c <= '9') || c == skipChar );
|
||||
|
||||
if(isNegative)
|
||||
value = -value;
|
||||
return value;
|
||||
}
|
||||
|
||||
|
||||
// as parseInt but returns a floating point value
|
||||
float Stream::parseFloat()
|
||||
{
|
||||
return parseFloat(NO_SKIP_CHAR);
|
||||
}
|
||||
|
||||
// as above but the given skipChar is ignored
|
||||
// this allows format characters (typically commas) in values to be ignored
|
||||
float Stream::parseFloat(char skipChar){
|
||||
boolean isNegative = false;
|
||||
boolean isFraction = false;
|
||||
long value = 0;
|
||||
char c;
|
||||
float fraction = 1.0;
|
||||
|
||||
c = peekNextDigit();
|
||||
// ignore non numeric leading characters
|
||||
if(c < 0)
|
||||
return 0; // zero returned if timeout
|
||||
|
||||
do{
|
||||
if(c == skipChar)
|
||||
; // ignore
|
||||
else if(c == '-')
|
||||
isNegative = true;
|
||||
else if (c == '.')
|
||||
isFraction = true;
|
||||
else if(c >= '0' && c <= '9') { // is c a digit?
|
||||
value = value * 10 + c - '0';
|
||||
if(isFraction)
|
||||
fraction *= 0.1;
|
||||
}
|
||||
read(); // consume the character we got with peek
|
||||
c = timedPeek();
|
||||
}
|
||||
while( (c >= '0' && c <= '9') || c == '.' || c == skipChar );
|
||||
|
||||
if(isNegative)
|
||||
value = -value;
|
||||
if(isFraction)
|
||||
return value * fraction;
|
||||
else
|
||||
return value;
|
||||
}
|
||||
|
||||
// read characters from stream into buffer
|
||||
// terminates if length characters have been read, or timeout (see setTimeout)
|
||||
// returns the number of characters placed in the buffer
|
||||
// the buffer is NOT null terminated.
|
||||
//
|
||||
size_t Stream::readBytes(char *buffer, size_t length)
|
||||
{
|
||||
size_t count = 0;
|
||||
while (count < length) {
|
||||
int c = timedRead();
|
||||
if (c < 0) break;
|
||||
*buffer++ = (char)c;
|
||||
count++;
|
||||
}
|
||||
return count;
|
||||
}
|
||||
|
||||
|
||||
// as readBytes with terminator character
|
||||
// terminates if length characters have been read, timeout, or if the terminator character detected
|
||||
// returns the number of characters placed in the buffer (0 means no valid data found)
|
||||
|
||||
size_t Stream::readBytesUntil(char terminator, char *buffer, size_t length)
|
||||
{
|
||||
if (length < 1) return 0;
|
||||
size_t index = 0;
|
||||
while (index < length) {
|
||||
int c = timedRead();
|
||||
if (c < 0 || c == terminator) break;
|
||||
*buffer++ = (char)c;
|
||||
index++;
|
||||
}
|
||||
return index; // return number of characters, not including null terminator
|
||||
}
|
||||
|
||||
String Stream::readString()
|
||||
{
|
||||
String ret;
|
||||
int c = timedRead();
|
||||
while (c >= 0)
|
||||
{
|
||||
ret += (char)c;
|
||||
c = timedRead();
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
String Stream::readStringUntil(char terminator)
|
||||
{
|
||||
String ret;
|
||||
int c = timedRead();
|
||||
while (c >= 0 && c != terminator)
|
||||
{
|
||||
ret += (char)c;
|
||||
c = timedRead();
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
96
platform/osd-merkur/dev/old/Stream.h
Normal file
96
platform/osd-merkur/dev/old/Stream.h
Normal file
|
@ -0,0 +1,96 @@
|
|||
/*
|
||||
Stream.h - base class for character-based streams.
|
||||
Copyright (c) 2010 David A. Mellis. All right reserved.
|
||||
|
||||
This library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
This library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with this library; if not, write to the Free Software
|
||||
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
|
||||
parsing functions based on TextFinder library by Michael Margolis
|
||||
*/
|
||||
|
||||
#ifndef Stream_h
|
||||
#define Stream_h
|
||||
|
||||
#include <inttypes.h>
|
||||
#include "Print.h"
|
||||
|
||||
// compatability macros for testing
|
||||
/*
|
||||
#define getInt() parseInt()
|
||||
#define getInt(skipChar) parseInt(skipchar)
|
||||
#define getFloat() parseFloat()
|
||||
#define getFloat(skipChar) parseFloat(skipChar)
|
||||
#define getString( pre_string, post_string, buffer, length)
|
||||
readBytesBetween( pre_string, terminator, buffer, length)
|
||||
*/
|
||||
|
||||
class Stream : public Print
|
||||
{
|
||||
private:
|
||||
unsigned long _timeout; // number of milliseconds to wait for the next char before aborting timed read
|
||||
unsigned long _startMillis; // used for timeout measurement
|
||||
int timedRead(); // private method to read stream with timeout
|
||||
int timedPeek(); // private method to peek stream with timeout
|
||||
int peekNextDigit(); // returns the next numeric digit in the stream or -1 if timeout
|
||||
|
||||
public:
|
||||
virtual int available() = 0;
|
||||
virtual int read() = 0;
|
||||
virtual int peek() = 0;
|
||||
virtual void flush() = 0;
|
||||
|
||||
Stream() {_timeout=1000;}
|
||||
|
||||
// parsing methods
|
||||
|
||||
void setTimeout(unsigned long timeout); // sets maximum milliseconds to wait for stream data, default is 1 second
|
||||
|
||||
bool find(char *target); // reads data from the stream until the target string is found
|
||||
// returns true if target string is found, false if timed out (see setTimeout)
|
||||
|
||||
bool find(char *target, size_t length); // reads data from the stream until the target string of given length is found
|
||||
// returns true if target string is found, false if timed out
|
||||
|
||||
bool findUntil(char *target, char *terminator); // as find but search ends if the terminator string is found
|
||||
|
||||
bool findUntil(char *target, size_t targetLen, char *terminate, size_t termLen); // as above but search ends if the terminate string is found
|
||||
|
||||
|
||||
long parseInt(); // returns the first valid (long) integer value from the current position.
|
||||
// initial characters that are not digits (or the minus sign) are skipped
|
||||
// integer is terminated by the first character that is not a digit.
|
||||
|
||||
float parseFloat(); // float version of parseInt
|
||||
|
||||
size_t readBytes( char *buffer, size_t length); // read chars from stream into buffer
|
||||
// terminates if length characters have been read or timeout (see setTimeout)
|
||||
// returns the number of characters placed in the buffer (0 means no valid data found)
|
||||
|
||||
size_t readBytesUntil( char terminator, char *buffer, size_t length); // as readBytes with terminator character
|
||||
// terminates if length characters have been read, timeout, or if the terminator character detected
|
||||
// returns the number of characters placed in the buffer (0 means no valid data found)
|
||||
|
||||
// Arduino String functions to be added here
|
||||
String readString();
|
||||
String readStringUntil(char terminator);
|
||||
|
||||
protected:
|
||||
long parseInt(char skipChar); // as above but the given skipChar is ignored
|
||||
// as above but the given skipChar is ignored
|
||||
// this allows format characters (typically commas) in values to be ignored
|
||||
|
||||
float parseFloat(char skipChar); // as above but the given skipChar is ignored
|
||||
};
|
||||
|
||||
#endif
|
645
platform/osd-merkur/dev/old/WString.cpp
Normal file
645
platform/osd-merkur/dev/old/WString.cpp
Normal file
|
@ -0,0 +1,645 @@
|
|||
/*
|
||||
WString.cpp - String library for Wiring & Arduino
|
||||
...mostly rewritten by Paul Stoffregen...
|
||||
Copyright (c) 2009-10 Hernando Barragan. All rights reserved.
|
||||
Copyright 2011, Paul Stoffregen, paul@pjrc.com
|
||||
|
||||
This library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
This library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with this library; if not, write to the Free Software
|
||||
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
#include "WString.h"
|
||||
|
||||
|
||||
/*********************************************/
|
||||
/* Constructors */
|
||||
/*********************************************/
|
||||
|
||||
String::String(const char *cstr)
|
||||
{
|
||||
init();
|
||||
if (cstr) copy(cstr, strlen(cstr));
|
||||
}
|
||||
|
||||
String::String(const String &value)
|
||||
{
|
||||
init();
|
||||
*this = value;
|
||||
}
|
||||
|
||||
#ifdef __GXX_EXPERIMENTAL_CXX0X__
|
||||
String::String(String &&rval)
|
||||
{
|
||||
init();
|
||||
move(rval);
|
||||
}
|
||||
String::String(StringSumHelper &&rval)
|
||||
{
|
||||
init();
|
||||
move(rval);
|
||||
}
|
||||
#endif
|
||||
|
||||
String::String(char c)
|
||||
{
|
||||
init();
|
||||
char buf[2];
|
||||
buf[0] = c;
|
||||
buf[1] = 0;
|
||||
*this = buf;
|
||||
}
|
||||
|
||||
String::String(unsigned char value, unsigned char base)
|
||||
{
|
||||
init();
|
||||
char buf[9];
|
||||
utoa(value, buf, base);
|
||||
*this = buf;
|
||||
}
|
||||
|
||||
String::String(int value, unsigned char base)
|
||||
{
|
||||
init();
|
||||
char buf[18];
|
||||
itoa(value, buf, base);
|
||||
*this = buf;
|
||||
}
|
||||
|
||||
String::String(unsigned int value, unsigned char base)
|
||||
{
|
||||
init();
|
||||
char buf[17];
|
||||
utoa(value, buf, base);
|
||||
*this = buf;
|
||||
}
|
||||
|
||||
String::String(long value, unsigned char base)
|
||||
{
|
||||
init();
|
||||
char buf[34];
|
||||
ltoa(value, buf, base);
|
||||
*this = buf;
|
||||
}
|
||||
|
||||
String::String(unsigned long value, unsigned char base)
|
||||
{
|
||||
init();
|
||||
char buf[33];
|
||||
ultoa(value, buf, base);
|
||||
*this = buf;
|
||||
}
|
||||
|
||||
String::~String()
|
||||
{
|
||||
free(buffer);
|
||||
}
|
||||
|
||||
/*********************************************/
|
||||
/* Memory Management */
|
||||
/*********************************************/
|
||||
|
||||
inline void String::init(void)
|
||||
{
|
||||
buffer = NULL;
|
||||
capacity = 0;
|
||||
len = 0;
|
||||
flags = 0;
|
||||
}
|
||||
|
||||
void String::invalidate(void)
|
||||
{
|
||||
if (buffer) free(buffer);
|
||||
buffer = NULL;
|
||||
capacity = len = 0;
|
||||
}
|
||||
|
||||
unsigned char String::reserve(unsigned int size)
|
||||
{
|
||||
if (buffer && capacity >= size) return 1;
|
||||
if (changeBuffer(size)) {
|
||||
if (len == 0) buffer[0] = 0;
|
||||
return 1;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
unsigned char String::changeBuffer(unsigned int maxStrLen)
|
||||
{
|
||||
char *newbuffer = (char *)realloc(buffer, maxStrLen + 1);
|
||||
if (newbuffer) {
|
||||
buffer = newbuffer;
|
||||
capacity = maxStrLen;
|
||||
return 1;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*********************************************/
|
||||
/* Copy and Move */
|
||||
/*********************************************/
|
||||
|
||||
String & String::copy(const char *cstr, unsigned int length)
|
||||
{
|
||||
if (!reserve(length)) {
|
||||
invalidate();
|
||||
return *this;
|
||||
}
|
||||
len = length;
|
||||
strcpy(buffer, cstr);
|
||||
return *this;
|
||||
}
|
||||
|
||||
#ifdef __GXX_EXPERIMENTAL_CXX0X__
|
||||
void String::move(String &rhs)
|
||||
{
|
||||
if (buffer) {
|
||||
if (capacity >= rhs.len) {
|
||||
strcpy(buffer, rhs.buffer);
|
||||
len = rhs.len;
|
||||
rhs.len = 0;
|
||||
return;
|
||||
} else {
|
||||
free(buffer);
|
||||
}
|
||||
}
|
||||
buffer = rhs.buffer;
|
||||
capacity = rhs.capacity;
|
||||
len = rhs.len;
|
||||
rhs.buffer = NULL;
|
||||
rhs.capacity = 0;
|
||||
rhs.len = 0;
|
||||
}
|
||||
#endif
|
||||
|
||||
String & String::operator = (const String &rhs)
|
||||
{
|
||||
if (this == &rhs) return *this;
|
||||
|
||||
if (rhs.buffer) copy(rhs.buffer, rhs.len);
|
||||
else invalidate();
|
||||
|
||||
return *this;
|
||||
}
|
||||
|
||||
#ifdef __GXX_EXPERIMENTAL_CXX0X__
|
||||
String & String::operator = (String &&rval)
|
||||
{
|
||||
if (this != &rval) move(rval);
|
||||
return *this;
|
||||
}
|
||||
|
||||
String & String::operator = (StringSumHelper &&rval)
|
||||
{
|
||||
if (this != &rval) move(rval);
|
||||
return *this;
|
||||
}
|
||||
#endif
|
||||
|
||||
String & String::operator = (const char *cstr)
|
||||
{
|
||||
if (cstr) copy(cstr, strlen(cstr));
|
||||
else invalidate();
|
||||
|
||||
return *this;
|
||||
}
|
||||
|
||||
/*********************************************/
|
||||
/* concat */
|
||||
/*********************************************/
|
||||
|
||||
unsigned char String::concat(const String &s)
|
||||
{
|
||||
return concat(s.buffer, s.len);
|
||||
}
|
||||
|
||||
unsigned char String::concat(const char *cstr, unsigned int length)
|
||||
{
|
||||
unsigned int newlen = len + length;
|
||||
if (!cstr) return 0;
|
||||
if (length == 0) return 1;
|
||||
if (!reserve(newlen)) return 0;
|
||||
strcpy(buffer + len, cstr);
|
||||
len = newlen;
|
||||
return 1;
|
||||
}
|
||||
|
||||
unsigned char String::concat(const char *cstr)
|
||||
{
|
||||
if (!cstr) return 0;
|
||||
return concat(cstr, strlen(cstr));
|
||||
}
|
||||
|
||||
unsigned char String::concat(char c)
|
||||
{
|
||||
char buf[2];
|
||||
buf[0] = c;
|
||||
buf[1] = 0;
|
||||
return concat(buf, 1);
|
||||
}
|
||||
|
||||
unsigned char String::concat(unsigned char num)
|
||||
{
|
||||
char buf[4];
|
||||
itoa(num, buf, 10);
|
||||
return concat(buf, strlen(buf));
|
||||
}
|
||||
|
||||
unsigned char String::concat(int num)
|
||||
{
|
||||
char buf[7];
|
||||
itoa(num, buf, 10);
|
||||
return concat(buf, strlen(buf));
|
||||
}
|
||||
|
||||
unsigned char String::concat(unsigned int num)
|
||||
{
|
||||
char buf[6];
|
||||
utoa(num, buf, 10);
|
||||
return concat(buf, strlen(buf));
|
||||
}
|
||||
|
||||
unsigned char String::concat(long num)
|
||||
{
|
||||
char buf[12];
|
||||
ltoa(num, buf, 10);
|
||||
return concat(buf, strlen(buf));
|
||||
}
|
||||
|
||||
unsigned char String::concat(unsigned long num)
|
||||
{
|
||||
char buf[11];
|
||||
ultoa(num, buf, 10);
|
||||
return concat(buf, strlen(buf));
|
||||
}
|
||||
|
||||
/*********************************************/
|
||||
/* Concatenate */
|
||||
/*********************************************/
|
||||
|
||||
StringSumHelper & operator + (const StringSumHelper &lhs, const String &rhs)
|
||||
{
|
||||
StringSumHelper &a = const_cast<StringSumHelper&>(lhs);
|
||||
if (!a.concat(rhs.buffer, rhs.len)) a.invalidate();
|
||||
return a;
|
||||
}
|
||||
|
||||
StringSumHelper & operator + (const StringSumHelper &lhs, const char *cstr)
|
||||
{
|
||||
StringSumHelper &a = const_cast<StringSumHelper&>(lhs);
|
||||
if (!cstr || !a.concat(cstr, strlen(cstr))) a.invalidate();
|
||||
return a;
|
||||
}
|
||||
|
||||
StringSumHelper & operator + (const StringSumHelper &lhs, char c)
|
||||
{
|
||||
StringSumHelper &a = const_cast<StringSumHelper&>(lhs);
|
||||
if (!a.concat(c)) a.invalidate();
|
||||
return a;
|
||||
}
|
||||
|
||||
StringSumHelper & operator + (const StringSumHelper &lhs, unsigned char num)
|
||||
{
|
||||
StringSumHelper &a = const_cast<StringSumHelper&>(lhs);
|
||||
if (!a.concat(num)) a.invalidate();
|
||||
return a;
|
||||
}
|
||||
|
||||
StringSumHelper & operator + (const StringSumHelper &lhs, int num)
|
||||
{
|
||||
StringSumHelper &a = const_cast<StringSumHelper&>(lhs);
|
||||
if (!a.concat(num)) a.invalidate();
|
||||
return a;
|
||||
}
|
||||
|
||||
StringSumHelper & operator + (const StringSumHelper &lhs, unsigned int num)
|
||||
{
|
||||
StringSumHelper &a = const_cast<StringSumHelper&>(lhs);
|
||||
if (!a.concat(num)) a.invalidate();
|
||||
return a;
|
||||
}
|
||||
|
||||
StringSumHelper & operator + (const StringSumHelper &lhs, long num)
|
||||
{
|
||||
StringSumHelper &a = const_cast<StringSumHelper&>(lhs);
|
||||
if (!a.concat(num)) a.invalidate();
|
||||
return a;
|
||||
}
|
||||
|
||||
StringSumHelper & operator + (const StringSumHelper &lhs, unsigned long num)
|
||||
{
|
||||
StringSumHelper &a = const_cast<StringSumHelper&>(lhs);
|
||||
if (!a.concat(num)) a.invalidate();
|
||||
return a;
|
||||
}
|
||||
|
||||
/*********************************************/
|
||||
/* Comparison */
|
||||
/*********************************************/
|
||||
|
||||
int String::compareTo(const String &s) const
|
||||
{
|
||||
if (!buffer || !s.buffer) {
|
||||
if (s.buffer && s.len > 0) return 0 - *(unsigned char *)s.buffer;
|
||||
if (buffer && len > 0) return *(unsigned char *)buffer;
|
||||
return 0;
|
||||
}
|
||||
return strcmp(buffer, s.buffer);
|
||||
}
|
||||
|
||||
unsigned char String::equals(const String &s2) const
|
||||
{
|
||||
return (len == s2.len && compareTo(s2) == 0);
|
||||
}
|
||||
|
||||
unsigned char String::equals(const char *cstr) const
|
||||
{
|
||||
if (len == 0) return (cstr == NULL || *cstr == 0);
|
||||
if (cstr == NULL) return buffer[0] == 0;
|
||||
return strcmp(buffer, cstr) == 0;
|
||||
}
|
||||
|
||||
unsigned char String::operator<(const String &rhs) const
|
||||
{
|
||||
return compareTo(rhs) < 0;
|
||||
}
|
||||
|
||||
unsigned char String::operator>(const String &rhs) const
|
||||
{
|
||||
return compareTo(rhs) > 0;
|
||||
}
|
||||
|
||||
unsigned char String::operator<=(const String &rhs) const
|
||||
{
|
||||
return compareTo(rhs) <= 0;
|
||||
}
|
||||
|
||||
unsigned char String::operator>=(const String &rhs) const
|
||||
{
|
||||
return compareTo(rhs) >= 0;
|
||||
}
|
||||
|
||||
unsigned char String::equalsIgnoreCase( const String &s2 ) const
|
||||
{
|
||||
if (this == &s2) return 1;
|
||||
if (len != s2.len) return 0;
|
||||
if (len == 0) return 1;
|
||||
const char *p1 = buffer;
|
||||
const char *p2 = s2.buffer;
|
||||
while (*p1) {
|
||||
if (tolower(*p1++) != tolower(*p2++)) return 0;
|
||||
}
|
||||
return 1;
|
||||
}
|
||||
|
||||
unsigned char String::startsWith( const String &s2 ) const
|
||||
{
|
||||
if (len < s2.len) return 0;
|
||||
return startsWith(s2, 0);
|
||||
}
|
||||
|
||||
unsigned char String::startsWith( const String &s2, unsigned int offset ) const
|
||||
{
|
||||
if (offset > len - s2.len || !buffer || !s2.buffer) return 0;
|
||||
return strncmp( &buffer[offset], s2.buffer, s2.len ) == 0;
|
||||
}
|
||||
|
||||
unsigned char String::endsWith( const String &s2 ) const
|
||||
{
|
||||
if ( len < s2.len || !buffer || !s2.buffer) return 0;
|
||||
return strcmp(&buffer[len - s2.len], s2.buffer) == 0;
|
||||
}
|
||||
|
||||
/*********************************************/
|
||||
/* Character Access */
|
||||
/*********************************************/
|
||||
|
||||
char String::charAt(unsigned int loc) const
|
||||
{
|
||||
return operator[](loc);
|
||||
}
|
||||
|
||||
void String::setCharAt(unsigned int loc, char c)
|
||||
{
|
||||
if (loc < len) buffer[loc] = c;
|
||||
}
|
||||
|
||||
char & String::operator[](unsigned int index)
|
||||
{
|
||||
static char dummy_writable_char;
|
||||
if (index >= len || !buffer) {
|
||||
dummy_writable_char = 0;
|
||||
return dummy_writable_char;
|
||||
}
|
||||
return buffer[index];
|
||||
}
|
||||
|
||||
char String::operator[]( unsigned int index ) const
|
||||
{
|
||||
if (index >= len || !buffer) return 0;
|
||||
return buffer[index];
|
||||
}
|
||||
|
||||
void String::getBytes(unsigned char *buf, unsigned int bufsize, unsigned int index) const
|
||||
{
|
||||
if (!bufsize || !buf) return;
|
||||
if (index >= len) {
|
||||
buf[0] = 0;
|
||||
return;
|
||||
}
|
||||
unsigned int n = bufsize - 1;
|
||||
if (n > len - index) n = len - index;
|
||||
strncpy((char *)buf, buffer + index, n);
|
||||
buf[n] = 0;
|
||||
}
|
||||
|
||||
/*********************************************/
|
||||
/* Search */
|
||||
/*********************************************/
|
||||
|
||||
int String::indexOf(char c) const
|
||||
{
|
||||
return indexOf(c, 0);
|
||||
}
|
||||
|
||||
int String::indexOf( char ch, unsigned int fromIndex ) const
|
||||
{
|
||||
if (fromIndex >= len) return -1;
|
||||
const char* temp = strchr(buffer + fromIndex, ch);
|
||||
if (temp == NULL) return -1;
|
||||
return temp - buffer;
|
||||
}
|
||||
|
||||
int String::indexOf(const String &s2) const
|
||||
{
|
||||
return indexOf(s2, 0);
|
||||
}
|
||||
|
||||
int String::indexOf(const String &s2, unsigned int fromIndex) const
|
||||
{
|
||||
if (fromIndex >= len) return -1;
|
||||
const char *found = strstr(buffer + fromIndex, s2.buffer);
|
||||
if (found == NULL) return -1;
|
||||
return found - buffer;
|
||||
}
|
||||
|
||||
int String::lastIndexOf( char theChar ) const
|
||||
{
|
||||
return lastIndexOf(theChar, len - 1);
|
||||
}
|
||||
|
||||
int String::lastIndexOf(char ch, unsigned int fromIndex) const
|
||||
{
|
||||
if (fromIndex >= len) return -1;
|
||||
char tempchar = buffer[fromIndex + 1];
|
||||
buffer[fromIndex + 1] = '\0';
|
||||
char* temp = strrchr( buffer, ch );
|
||||
buffer[fromIndex + 1] = tempchar;
|
||||
if (temp == NULL) return -1;
|
||||
return temp - buffer;
|
||||
}
|
||||
|
||||
int String::lastIndexOf(const String &s2) const
|
||||
{
|
||||
return lastIndexOf(s2, len - s2.len);
|
||||
}
|
||||
|
||||
int String::lastIndexOf(const String &s2, unsigned int fromIndex) const
|
||||
{
|
||||
if (s2.len == 0 || len == 0 || s2.len > len) return -1;
|
||||
if (fromIndex >= len) fromIndex = len - 1;
|
||||
int found = -1;
|
||||
for (char *p = buffer; p <= buffer + fromIndex; p++) {
|
||||
p = strstr(p, s2.buffer);
|
||||
if (!p) break;
|
||||
if ((unsigned int)(p - buffer) <= fromIndex) found = p - buffer;
|
||||
}
|
||||
return found;
|
||||
}
|
||||
|
||||
String String::substring( unsigned int left ) const
|
||||
{
|
||||
return substring(left, len);
|
||||
}
|
||||
|
||||
String String::substring(unsigned int left, unsigned int right) const
|
||||
{
|
||||
if (left > right) {
|
||||
unsigned int temp = right;
|
||||
right = left;
|
||||
left = temp;
|
||||
}
|
||||
String out;
|
||||
if (left > len) return out;
|
||||
if (right > len) right = len;
|
||||
char temp = buffer[right]; // save the replaced character
|
||||
buffer[right] = '\0';
|
||||
out = buffer + left; // pointer arithmetic
|
||||
buffer[right] = temp; //restore character
|
||||
return out;
|
||||
}
|
||||
|
||||
/*********************************************/
|
||||
/* Modification */
|
||||
/*********************************************/
|
||||
|
||||
void String::replace(char find, char replace)
|
||||
{
|
||||
if (!buffer) return;
|
||||
for (char *p = buffer; *p; p++) {
|
||||
if (*p == find) *p = replace;
|
||||
}
|
||||
}
|
||||
|
||||
void String::replace(const String& find, const String& replace)
|
||||
{
|
||||
if (len == 0 || find.len == 0) return;
|
||||
int diff = replace.len - find.len;
|
||||
char *readFrom = buffer;
|
||||
char *foundAt;
|
||||
if (diff == 0) {
|
||||
while ((foundAt = strstr(readFrom, find.buffer)) != NULL) {
|
||||
memcpy(foundAt, replace.buffer, replace.len);
|
||||
readFrom = foundAt + replace.len;
|
||||
}
|
||||
} else if (diff < 0) {
|
||||
char *writeTo = buffer;
|
||||
while ((foundAt = strstr(readFrom, find.buffer)) != NULL) {
|
||||
unsigned int n = foundAt - readFrom;
|
||||
memcpy(writeTo, readFrom, n);
|
||||
writeTo += n;
|
||||
memcpy(writeTo, replace.buffer, replace.len);
|
||||
writeTo += replace.len;
|
||||
readFrom = foundAt + find.len;
|
||||
len += diff;
|
||||
}
|
||||
strcpy(writeTo, readFrom);
|
||||
} else {
|
||||
unsigned int size = len; // compute size needed for result
|
||||
while ((foundAt = strstr(readFrom, find.buffer)) != NULL) {
|
||||
readFrom = foundAt + find.len;
|
||||
size += diff;
|
||||
}
|
||||
if (size == len) return;
|
||||
if (size > capacity && !changeBuffer(size)) return; // XXX: tell user!
|
||||
int index = len - 1;
|
||||
while (index >= 0 && (index = lastIndexOf(find, index)) >= 0) {
|
||||
readFrom = buffer + index + find.len;
|
||||
memmove(readFrom + diff, readFrom, len - (readFrom - buffer));
|
||||
len += diff;
|
||||
buffer[len] = 0;
|
||||
memcpy(buffer + index, replace.buffer, replace.len);
|
||||
index--;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void String::toLowerCase(void)
|
||||
{
|
||||
if (!buffer) return;
|
||||
for (char *p = buffer; *p; p++) {
|
||||
*p = tolower(*p);
|
||||
}
|
||||
}
|
||||
|
||||
void String::toUpperCase(void)
|
||||
{
|
||||
if (!buffer) return;
|
||||
for (char *p = buffer; *p; p++) {
|
||||
*p = toupper(*p);
|
||||
}
|
||||
}
|
||||
|
||||
void String::trim(void)
|
||||
{
|
||||
if (!buffer || len == 0) return;
|
||||
char *begin = buffer;
|
||||
while (isspace(*begin)) begin++;
|
||||
char *end = buffer + len - 1;
|
||||
while (isspace(*end) && end >= begin) end--;
|
||||
len = end + 1 - begin;
|
||||
if (begin > buffer) memcpy(buffer, begin, len);
|
||||
buffer[len] = 0;
|
||||
}
|
||||
|
||||
/*********************************************/
|
||||
/* Parsing / Conversion */
|
||||
/*********************************************/
|
||||
|
||||
long String::toInt(void) const
|
||||
{
|
||||
if (buffer) return atol(buffer);
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
205
platform/osd-merkur/dev/old/WString.h
Normal file
205
platform/osd-merkur/dev/old/WString.h
Normal file
|
@ -0,0 +1,205 @@
|
|||
/*
|
||||
WString.h - String library for Wiring & Arduino
|
||||
...mostly rewritten by Paul Stoffregen...
|
||||
Copyright (c) 2009-10 Hernando Barragan. All right reserved.
|
||||
Copyright 2011, Paul Stoffregen, paul@pjrc.com
|
||||
|
||||
This library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
This library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with this library; if not, write to the Free Software
|
||||
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
#ifndef String_class_h
|
||||
#define String_class_h
|
||||
#ifdef __cplusplus
|
||||
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <ctype.h>
|
||||
#include <avr/pgmspace.h>
|
||||
|
||||
// When compiling programs with this class, the following gcc parameters
|
||||
// dramatically increase performance and memory (RAM) efficiency, typically
|
||||
// with little or no increase in code size.
|
||||
// -felide-constructors
|
||||
// -std=c++0x
|
||||
|
||||
class __FlashStringHelper;
|
||||
#define F(string_literal) (reinterpret_cast<const __FlashStringHelper *>(PSTR(string_literal)))
|
||||
|
||||
// An inherited class for holding the result of a concatenation. These
|
||||
// result objects are assumed to be writable by subsequent concatenations.
|
||||
class StringSumHelper;
|
||||
|
||||
// The string class
|
||||
class String
|
||||
{
|
||||
// use a function pointer to allow for "if (s)" without the
|
||||
// complications of an operator bool(). for more information, see:
|
||||
// http://www.artima.com/cppsource/safebool.html
|
||||
typedef void (String::*StringIfHelperType)() const;
|
||||
void StringIfHelper() const {}
|
||||
|
||||
public:
|
||||
// constructors
|
||||
// creates a copy of the initial value.
|
||||
// if the initial value is null or invalid, or if memory allocation
|
||||
// fails, the string will be marked as invalid (i.e. "if (s)" will
|
||||
// be false).
|
||||
String(const char *cstr = "");
|
||||
String(const String &str);
|
||||
#ifdef __GXX_EXPERIMENTAL_CXX0X__
|
||||
String(String &&rval);
|
||||
String(StringSumHelper &&rval);
|
||||
#endif
|
||||
explicit String(char c);
|
||||
explicit String(unsigned char, unsigned char base=10);
|
||||
explicit String(int, unsigned char base=10);
|
||||
explicit String(unsigned int, unsigned char base=10);
|
||||
explicit String(long, unsigned char base=10);
|
||||
explicit String(unsigned long, unsigned char base=10);
|
||||
~String(void);
|
||||
|
||||
// memory management
|
||||
// return true on success, false on failure (in which case, the string
|
||||
// is left unchanged). reserve(0), if successful, will validate an
|
||||
// invalid string (i.e., "if (s)" will be true afterwards)
|
||||
unsigned char reserve(unsigned int size);
|
||||
inline unsigned int length(void) const {return len;}
|
||||
|
||||
// creates a copy of the assigned value. if the value is null or
|
||||
// invalid, or if the memory allocation fails, the string will be
|
||||
// marked as invalid ("if (s)" will be false).
|
||||
String & operator = (const String &rhs);
|
||||
String & operator = (const char *cstr);
|
||||
#ifdef __GXX_EXPERIMENTAL_CXX0X__
|
||||
String & operator = (String &&rval);
|
||||
String & operator = (StringSumHelper &&rval);
|
||||
#endif
|
||||
|
||||
// concatenate (works w/ built-in types)
|
||||
|
||||
// returns true on success, false on failure (in which case, the string
|
||||
// is left unchanged). if the argument is null or invalid, the
|
||||
// concatenation is considered unsucessful.
|
||||
unsigned char concat(const String &str);
|
||||
unsigned char concat(const char *cstr);
|
||||
unsigned char concat(char c);
|
||||
unsigned char concat(unsigned char c);
|
||||
unsigned char concat(int num);
|
||||
unsigned char concat(unsigned int num);
|
||||
unsigned char concat(long num);
|
||||
unsigned char concat(unsigned long num);
|
||||
|
||||
// if there's not enough memory for the concatenated value, the string
|
||||
// will be left unchanged (but this isn't signalled in any way)
|
||||
String & operator += (const String &rhs) {concat(rhs); return (*this);}
|
||||
String & operator += (const char *cstr) {concat(cstr); return (*this);}
|
||||
String & operator += (char c) {concat(c); return (*this);}
|
||||
String & operator += (unsigned char num) {concat(num); return (*this);}
|
||||
String & operator += (int num) {concat(num); return (*this);}
|
||||
String & operator += (unsigned int num) {concat(num); return (*this);}
|
||||
String & operator += (long num) {concat(num); return (*this);}
|
||||
String & operator += (unsigned long num) {concat(num); return (*this);}
|
||||
|
||||
friend StringSumHelper & operator + (const StringSumHelper &lhs, const String &rhs);
|
||||
friend StringSumHelper & operator + (const StringSumHelper &lhs, const char *cstr);
|
||||
friend StringSumHelper & operator + (const StringSumHelper &lhs, char c);
|
||||
friend StringSumHelper & operator + (const StringSumHelper &lhs, unsigned char num);
|
||||
friend StringSumHelper & operator + (const StringSumHelper &lhs, int num);
|
||||
friend StringSumHelper & operator + (const StringSumHelper &lhs, unsigned int num);
|
||||
friend StringSumHelper & operator + (const StringSumHelper &lhs, long num);
|
||||
friend StringSumHelper & operator + (const StringSumHelper &lhs, unsigned long num);
|
||||
|
||||
// comparison (only works w/ Strings and "strings")
|
||||
operator StringIfHelperType() const { return buffer ? &String::StringIfHelper : 0; }
|
||||
int compareTo(const String &s) const;
|
||||
unsigned char equals(const String &s) const;
|
||||
unsigned char equals(const char *cstr) const;
|
||||
unsigned char operator == (const String &rhs) const {return equals(rhs);}
|
||||
unsigned char operator == (const char *cstr) const {return equals(cstr);}
|
||||
unsigned char operator != (const String &rhs) const {return !equals(rhs);}
|
||||
unsigned char operator != (const char *cstr) const {return !equals(cstr);}
|
||||
unsigned char operator < (const String &rhs) const;
|
||||
unsigned char operator > (const String &rhs) const;
|
||||
unsigned char operator <= (const String &rhs) const;
|
||||
unsigned char operator >= (const String &rhs) const;
|
||||
unsigned char equalsIgnoreCase(const String &s) const;
|
||||
unsigned char startsWith( const String &prefix) const;
|
||||
unsigned char startsWith(const String &prefix, unsigned int offset) const;
|
||||
unsigned char endsWith(const String &suffix) const;
|
||||
|
||||
// character acccess
|
||||
char charAt(unsigned int index) const;
|
||||
void setCharAt(unsigned int index, char c);
|
||||
char operator [] (unsigned int index) const;
|
||||
char& operator [] (unsigned int index);
|
||||
void getBytes(unsigned char *buf, unsigned int bufsize, unsigned int index=0) const;
|
||||
void toCharArray(char *buf, unsigned int bufsize, unsigned int index=0) const
|
||||
{getBytes((unsigned char *)buf, bufsize, index);}
|
||||
|
||||
// search
|
||||
int indexOf( char ch ) const;
|
||||
int indexOf( char ch, unsigned int fromIndex ) const;
|
||||
int indexOf( const String &str ) const;
|
||||
int indexOf( const String &str, unsigned int fromIndex ) const;
|
||||
int lastIndexOf( char ch ) const;
|
||||
int lastIndexOf( char ch, unsigned int fromIndex ) const;
|
||||
int lastIndexOf( const String &str ) const;
|
||||
int lastIndexOf( const String &str, unsigned int fromIndex ) const;
|
||||
String substring( unsigned int beginIndex ) const;
|
||||
String substring( unsigned int beginIndex, unsigned int endIndex ) const;
|
||||
|
||||
// modification
|
||||
void replace(char find, char replace);
|
||||
void replace(const String& find, const String& replace);
|
||||
void toLowerCase(void);
|
||||
void toUpperCase(void);
|
||||
void trim(void);
|
||||
|
||||
// parsing/conversion
|
||||
long toInt(void) const;
|
||||
|
||||
protected:
|
||||
char *buffer; // the actual char array
|
||||
unsigned int capacity; // the array length minus one (for the '\0')
|
||||
unsigned int len; // the String length (not counting the '\0')
|
||||
unsigned char flags; // unused, for future features
|
||||
protected:
|
||||
void init(void);
|
||||
void invalidate(void);
|
||||
unsigned char changeBuffer(unsigned int maxStrLen);
|
||||
unsigned char concat(const char *cstr, unsigned int length);
|
||||
|
||||
// copy and move
|
||||
String & copy(const char *cstr, unsigned int length);
|
||||
#ifdef __GXX_EXPERIMENTAL_CXX0X__
|
||||
void move(String &rhs);
|
||||
#endif
|
||||
};
|
||||
|
||||
class StringSumHelper : public String
|
||||
{
|
||||
public:
|
||||
StringSumHelper(const String &s) : String(s) {}
|
||||
StringSumHelper(const char *p) : String(p) {}
|
||||
StringSumHelper(char c) : String(c) {}
|
||||
StringSumHelper(unsigned char num) : String(num) {}
|
||||
StringSumHelper(int num) : String(num) {}
|
||||
StringSumHelper(unsigned int num) : String(num) {}
|
||||
StringSumHelper(long num) : String(num) {}
|
||||
StringSumHelper(unsigned long num) : String(num) {}
|
||||
};
|
||||
|
||||
#endif // __cplusplus
|
||||
#endif // String_class_h
|
298
platform/osd-merkur/dev/old/Wire.cpp
Normal file
298
platform/osd-merkur/dev/old/Wire.cpp
Normal file
|
@ -0,0 +1,298 @@
|
|||
/*
|
||||
TwoWire.cpp - TWI/I2C library for Wiring & Arduino
|
||||
Copyright (c) 2006 Nicholas Zambetti. All right reserved.
|
||||
|
||||
This library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
This library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with this library; if not, write to the Free Software
|
||||
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
|
||||
Modified 2012 by Todd Krein (todd@krein.org) to implement repeated starts
|
||||
*/
|
||||
|
||||
extern "C" {
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <inttypes.h>
|
||||
#include "twi.h"
|
||||
}
|
||||
|
||||
#include "Wire.h"
|
||||
|
||||
// Initialize Class Variables //////////////////////////////////////////////////
|
||||
|
||||
uint8_t TwoWire::rxBuffer[BUFFER_LENGTH];
|
||||
uint8_t TwoWire::rxBufferIndex = 0;
|
||||
uint8_t TwoWire::rxBufferLength = 0;
|
||||
|
||||
uint8_t TwoWire::txAddress = 0;
|
||||
uint8_t TwoWire::txBuffer[BUFFER_LENGTH];
|
||||
uint8_t TwoWire::txBufferIndex = 0;
|
||||
uint8_t TwoWire::txBufferLength = 0;
|
||||
|
||||
uint8_t TwoWire::transmitting = 0;
|
||||
void (*TwoWire::user_onRequest)(void);
|
||||
void (*TwoWire::user_onReceive)(int);
|
||||
|
||||
// Constructors ////////////////////////////////////////////////////////////////
|
||||
|
||||
TwoWire::TwoWire()
|
||||
{
|
||||
}
|
||||
|
||||
// Public Methods //////////////////////////////////////////////////////////////
|
||||
|
||||
void TwoWire::begin(void)
|
||||
{
|
||||
rxBufferIndex = 0;
|
||||
rxBufferLength = 0;
|
||||
|
||||
txBufferIndex = 0;
|
||||
txBufferLength = 0;
|
||||
|
||||
twi_init();
|
||||
}
|
||||
|
||||
void TwoWire::begin(uint8_t address)
|
||||
{
|
||||
twi_setAddress(address);
|
||||
twi_attachSlaveTxEvent(onRequestService);
|
||||
twi_attachSlaveRxEvent(onReceiveService);
|
||||
begin();
|
||||
}
|
||||
|
||||
void TwoWire::begin(int address)
|
||||
{
|
||||
begin((uint8_t)address);
|
||||
}
|
||||
|
||||
uint8_t TwoWire::requestFrom(uint8_t address, uint8_t quantity, uint8_t sendStop)
|
||||
{
|
||||
// clamp to buffer length
|
||||
if(quantity > BUFFER_LENGTH){
|
||||
quantity = BUFFER_LENGTH;
|
||||
}
|
||||
// perform blocking read into buffer
|
||||
uint8_t read = twi_readFrom(address, rxBuffer, quantity, sendStop);
|
||||
// set rx buffer iterator vars
|
||||
rxBufferIndex = 0;
|
||||
rxBufferLength = read;
|
||||
|
||||
return read;
|
||||
}
|
||||
|
||||
uint8_t TwoWire::requestFrom(uint8_t address, uint8_t quantity)
|
||||
{
|
||||
return requestFrom((uint8_t)address, (uint8_t)quantity, (uint8_t)true);
|
||||
}
|
||||
|
||||
uint8_t TwoWire::requestFrom(int address, int quantity)
|
||||
{
|
||||
return requestFrom((uint8_t)address, (uint8_t)quantity, (uint8_t)true);
|
||||
}
|
||||
|
||||
uint8_t TwoWire::requestFrom(int address, int quantity, int sendStop)
|
||||
{
|
||||
return requestFrom((uint8_t)address, (uint8_t)quantity, (uint8_t)sendStop);
|
||||
}
|
||||
|
||||
void TwoWire::beginTransmission(uint8_t address)
|
||||
{
|
||||
// indicate that we are transmitting
|
||||
transmitting = 1;
|
||||
// set address of targeted slave
|
||||
txAddress = address;
|
||||
// reset tx buffer iterator vars
|
||||
txBufferIndex = 0;
|
||||
txBufferLength = 0;
|
||||
}
|
||||
|
||||
void TwoWire::beginTransmission(int address)
|
||||
{
|
||||
beginTransmission((uint8_t)address);
|
||||
}
|
||||
|
||||
//
|
||||
// Originally, 'endTransmission' was an f(void) function.
|
||||
// It has been modified to take one parameter indicating
|
||||
// whether or not a STOP should be performed on the bus.
|
||||
// Calling endTransmission(false) allows a sketch to
|
||||
// perform a repeated start.
|
||||
//
|
||||
// WARNING: Nothing in the library keeps track of whether
|
||||
// the bus tenure has been properly ended with a STOP. It
|
||||
// is very possible to leave the bus in a hung state if
|
||||
// no call to endTransmission(true) is made. Some I2C
|
||||
// devices will behave oddly if they do not see a STOP.
|
||||
//
|
||||
uint8_t TwoWire::endTransmission(uint8_t sendStop)
|
||||
{
|
||||
// transmit buffer (blocking)
|
||||
int8_t ret = twi_writeTo(txAddress, txBuffer, txBufferLength, 1, sendStop);
|
||||
// reset tx buffer iterator vars
|
||||
txBufferIndex = 0;
|
||||
txBufferLength = 0;
|
||||
// indicate that we are done transmitting
|
||||
transmitting = 0;
|
||||
return ret;
|
||||
}
|
||||
|
||||
// This provides backwards compatibility with the original
|
||||
// definition, and expected behaviour, of endTransmission
|
||||
//
|
||||
uint8_t TwoWire::endTransmission(void)
|
||||
{
|
||||
return endTransmission(true);
|
||||
}
|
||||
|
||||
// must be called in:
|
||||
// slave tx event callback
|
||||
// or after beginTransmission(address)
|
||||
size_t TwoWire::write(uint8_t data)
|
||||
{
|
||||
if(transmitting){
|
||||
// in master transmitter mode
|
||||
// don't bother if buffer is full
|
||||
if(txBufferLength >= BUFFER_LENGTH){
|
||||
setWriteError();
|
||||
return 0;
|
||||
}
|
||||
// put byte in tx buffer
|
||||
txBuffer[txBufferIndex] = data;
|
||||
++txBufferIndex;
|
||||
// update amount in buffer
|
||||
txBufferLength = txBufferIndex;
|
||||
}else{
|
||||
// in slave send mode
|
||||
// reply to master
|
||||
twi_transmit(&data, 1);
|
||||
}
|
||||
return 1;
|
||||
}
|
||||
|
||||
// must be called in:
|
||||
// slave tx event callback
|
||||
// or after beginTransmission(address)
|
||||
size_t TwoWire::write(const uint8_t *data, size_t quantity)
|
||||
{
|
||||
if(transmitting){
|
||||
// in master transmitter mode
|
||||
for(size_t i = 0; i < quantity; ++i){
|
||||
write(data[i]);
|
||||
}
|
||||
}else{
|
||||
// in slave send mode
|
||||
// reply to master
|
||||
twi_transmit(data, quantity);
|
||||
}
|
||||
return quantity;
|
||||
}
|
||||
|
||||
// must be called in:
|
||||
// slave rx event callback
|
||||
// or after requestFrom(address, numBytes)
|
||||
int TwoWire::available(void)
|
||||
{
|
||||
return rxBufferLength - rxBufferIndex;
|
||||
}
|
||||
|
||||
// must be called in:
|
||||
// slave rx event callback
|
||||
// or after requestFrom(address, numBytes)
|
||||
int TwoWire::read(void)
|
||||
{
|
||||
int value = -1;
|
||||
|
||||
// get each successive byte on each call
|
||||
if(rxBufferIndex < rxBufferLength){
|
||||
value = rxBuffer[rxBufferIndex];
|
||||
++rxBufferIndex;
|
||||
}
|
||||
|
||||
return value;
|
||||
}
|
||||
|
||||
// must be called in:
|
||||
// slave rx event callback
|
||||
// or after requestFrom(address, numBytes)
|
||||
int TwoWire::peek(void)
|
||||
{
|
||||
int value = -1;
|
||||
|
||||
if(rxBufferIndex < rxBufferLength){
|
||||
value = rxBuffer[rxBufferIndex];
|
||||
}
|
||||
|
||||
return value;
|
||||
}
|
||||
|
||||
void TwoWire::flush(void)
|
||||
{
|
||||
// XXX: to be implemented.
|
||||
}
|
||||
|
||||
// behind the scenes function that is called when data is received
|
||||
void TwoWire::onReceiveService(uint8_t* inBytes, int numBytes)
|
||||
{
|
||||
// don't bother if user hasn't registered a callback
|
||||
if(!user_onReceive){
|
||||
return;
|
||||
}
|
||||
// don't bother if rx buffer is in use by a master requestFrom() op
|
||||
// i know this drops data, but it allows for slight stupidity
|
||||
// meaning, they may not have read all the master requestFrom() data yet
|
||||
if(rxBufferIndex < rxBufferLength){
|
||||
return;
|
||||
}
|
||||
// copy twi rx buffer into local read buffer
|
||||
// this enables new reads to happen in parallel
|
||||
for(uint8_t i = 0; i < numBytes; ++i){
|
||||
rxBuffer[i] = inBytes[i];
|
||||
}
|
||||
// set rx iterator vars
|
||||
rxBufferIndex = 0;
|
||||
rxBufferLength = numBytes;
|
||||
// alert user program
|
||||
user_onReceive(numBytes);
|
||||
}
|
||||
|
||||
// behind the scenes function that is called when data is requested
|
||||
void TwoWire::onRequestService(void)
|
||||
{
|
||||
// don't bother if user hasn't registered a callback
|
||||
if(!user_onRequest){
|
||||
return;
|
||||
}
|
||||
// reset tx buffer iterator vars
|
||||
// !!! this will kill any pending pre-master sendTo() activity
|
||||
txBufferIndex = 0;
|
||||
txBufferLength = 0;
|
||||
// alert user program
|
||||
user_onRequest();
|
||||
}
|
||||
|
||||
// sets function called on slave write
|
||||
void TwoWire::onReceive( void (*function)(int) )
|
||||
{
|
||||
user_onReceive = function;
|
||||
}
|
||||
|
||||
// sets function called on slave read
|
||||
void TwoWire::onRequest( void (*function)(void) )
|
||||
{
|
||||
user_onRequest = function;
|
||||
}
|
||||
|
||||
// Preinstantiate Objects //////////////////////////////////////////////////////
|
||||
|
||||
TwoWire Wire = TwoWire();
|
||||
|
79
platform/osd-merkur/dev/old/Wire.h
Normal file
79
platform/osd-merkur/dev/old/Wire.h
Normal file
|
@ -0,0 +1,79 @@
|
|||
/*
|
||||
TwoWire.h - TWI/I2C library for Arduino & Wiring
|
||||
Copyright (c) 2006 Nicholas Zambetti. All right reserved.
|
||||
|
||||
This library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
This library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with this library; if not, write to the Free Software
|
||||
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
|
||||
Modified 2012 by Todd Krein (todd@krein.org) to implement repeated starts
|
||||
*/
|
||||
|
||||
#ifndef TwoWire_h
|
||||
#define TwoWire_h
|
||||
|
||||
#include <inttypes.h>
|
||||
#include "Stream.h"
|
||||
|
||||
#define BUFFER_LENGTH 32
|
||||
|
||||
class TwoWire : public Stream
|
||||
{
|
||||
private:
|
||||
static uint8_t rxBuffer[];
|
||||
static uint8_t rxBufferIndex;
|
||||
static uint8_t rxBufferLength;
|
||||
|
||||
static uint8_t txAddress;
|
||||
static uint8_t txBuffer[];
|
||||
static uint8_t txBufferIndex;
|
||||
static uint8_t txBufferLength;
|
||||
|
||||
static uint8_t transmitting;
|
||||
static void (*user_onRequest)(void);
|
||||
static void (*user_onReceive)(int);
|
||||
static void onRequestService(void);
|
||||
static void onReceiveService(uint8_t*, int);
|
||||
public:
|
||||
TwoWire();
|
||||
void begin();
|
||||
void begin(uint8_t);
|
||||
void begin(int);
|
||||
void beginTransmission(uint8_t);
|
||||
void beginTransmission(int);
|
||||
uint8_t endTransmission(void);
|
||||
uint8_t endTransmission(uint8_t);
|
||||
uint8_t requestFrom(uint8_t, uint8_t);
|
||||
uint8_t requestFrom(uint8_t, uint8_t, uint8_t);
|
||||
uint8_t requestFrom(int, int);
|
||||
uint8_t requestFrom(int, int, int);
|
||||
virtual size_t write(uint8_t);
|
||||
virtual size_t write(const uint8_t *, size_t);
|
||||
virtual int available(void);
|
||||
virtual int read(void);
|
||||
virtual int peek(void);
|
||||
virtual void flush(void);
|
||||
void onReceive( void (*)(int) );
|
||||
void onRequest( void (*)(void) );
|
||||
|
||||
inline size_t write(unsigned long n) { return write((uint8_t)n); }
|
||||
inline size_t write(long n) { return write((uint8_t)n); }
|
||||
inline size_t write(unsigned int n) { return write((uint8_t)n); }
|
||||
inline size_t write(int n) { return write((uint8_t)n); }
|
||||
using Print::write;
|
||||
};
|
||||
|
||||
extern TwoWire Wire;
|
||||
|
||||
#endif
|
||||
|
28
platform/osd-merkur/dev/old/new.cpp
Normal file
28
platform/osd-merkur/dev/old/new.cpp
Normal file
|
@ -0,0 +1,28 @@
|
|||
#include <new.h>
|
||||
|
||||
void * operator new(size_t size)
|
||||
{
|
||||
return malloc(size);
|
||||
}
|
||||
|
||||
void * operator new[](size_t size)
|
||||
{
|
||||
return malloc(size);
|
||||
}
|
||||
|
||||
void operator delete(void * ptr)
|
||||
{
|
||||
free(ptr);
|
||||
}
|
||||
|
||||
void operator delete[](void * ptr)
|
||||
{
|
||||
free(ptr);
|
||||
}
|
||||
|
||||
int __cxa_guard_acquire(__guard *g) {return !*(char *)(g);};
|
||||
void __cxa_guard_release (__guard *g) {*(char *)g = 1;};
|
||||
void __cxa_guard_abort (__guard *) {};
|
||||
|
||||
void __cxa_pure_virtual(void) {};
|
||||
|
24
platform/osd-merkur/dev/old/new.h
Normal file
24
platform/osd-merkur/dev/old/new.h
Normal file
|
@ -0,0 +1,24 @@
|
|||
/* Header to define new/delete operators as they aren't provided by avr-gcc by default
|
||||
Taken from http://www.avrfreaks.net/index.php?name=PNphpBB2&file=viewtopic&t=59453
|
||||
*/
|
||||
|
||||
#ifndef NEW_H
|
||||
#define NEW_H
|
||||
|
||||
#include <stdlib.h>
|
||||
|
||||
void * operator new(size_t size);
|
||||
void * operator new[](size_t size);
|
||||
void operator delete(void * ptr);
|
||||
void operator delete[](void * ptr);
|
||||
|
||||
__extension__ typedef int __guard __attribute__((mode (__DI__)));
|
||||
|
||||
extern "C" int __cxa_guard_acquire(__guard *);
|
||||
extern "C" void __cxa_guard_release (__guard *);
|
||||
extern "C" void __cxa_guard_abort (__guard *);
|
||||
|
||||
extern "C" void __cxa_pure_virtual(void);
|
||||
|
||||
#endif
|
||||
|
527
platform/osd-merkur/dev/old/twi.c
Normal file
527
platform/osd-merkur/dev/old/twi.c
Normal file
|
@ -0,0 +1,527 @@
|
|||
/*
|
||||
twi.c - TWI/I2C library for Wiring & Arduino
|
||||
Copyright (c) 2006 Nicholas Zambetti. All right reserved.
|
||||
|
||||
This library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
This library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with this library; if not, write to the Free Software
|
||||
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
|
||||
Modified 2012 by Todd Krein (todd@krein.org) to implement repeated starts
|
||||
*/
|
||||
|
||||
#include <math.h>
|
||||
#include <stdlib.h>
|
||||
#include <inttypes.h>
|
||||
#include <avr/io.h>
|
||||
#include <avr/interrupt.h>
|
||||
#include <compat/twi.h>
|
||||
#include "Arduino.h" // for digitalWrite
|
||||
|
||||
#ifndef cbi
|
||||
#define cbi(sfr, bit) (_SFR_BYTE(sfr) &= ~_BV(bit))
|
||||
#endif
|
||||
|
||||
#ifndef sbi
|
||||
#define sbi(sfr, bit) (_SFR_BYTE(sfr) |= _BV(bit))
|
||||
#endif
|
||||
|
||||
#include "pins_arduino.h"
|
||||
#include "twi.h"
|
||||
|
||||
static volatile uint8_t twi_state;
|
||||
static volatile uint8_t twi_slarw;
|
||||
static volatile uint8_t twi_sendStop; // should the transaction end with a stop
|
||||
static volatile uint8_t twi_inRepStart; // in the middle of a repeated start
|
||||
|
||||
static void (*twi_onSlaveTransmit)(void);
|
||||
static void (*twi_onSlaveReceive)(uint8_t*, int);
|
||||
|
||||
static uint8_t twi_masterBuffer[TWI_BUFFER_LENGTH];
|
||||
static volatile uint8_t twi_masterBufferIndex;
|
||||
static volatile uint8_t twi_masterBufferLength;
|
||||
|
||||
static uint8_t twi_txBuffer[TWI_BUFFER_LENGTH];
|
||||
static volatile uint8_t twi_txBufferIndex;
|
||||
static volatile uint8_t twi_txBufferLength;
|
||||
|
||||
static uint8_t twi_rxBuffer[TWI_BUFFER_LENGTH];
|
||||
static volatile uint8_t twi_rxBufferIndex;
|
||||
|
||||
static volatile uint8_t twi_error;
|
||||
|
||||
/*
|
||||
* Function twi_init
|
||||
* Desc readys twi pins and sets twi bitrate
|
||||
* Input none
|
||||
* Output none
|
||||
*/
|
||||
void twi_init(void)
|
||||
{
|
||||
// initialize state
|
||||
twi_state = TWI_READY;
|
||||
twi_sendStop = true; // default value
|
||||
twi_inRepStart = false;
|
||||
|
||||
// activate internal pullups for twi.
|
||||
digitalWrite(SDA, 1);
|
||||
digitalWrite(SCL, 1);
|
||||
|
||||
// initialize twi prescaler and bit rate
|
||||
cbi(TWSR, TWPS0);
|
||||
cbi(TWSR, TWPS1);
|
||||
TWBR = ((F_CPU / TWI_FREQ) - 16) / 2;
|
||||
|
||||
/* twi bit rate formula from atmega128 manual pg 204
|
||||
SCL Frequency = CPU Clock Frequency / (16 + (2 * TWBR))
|
||||
note: TWBR should be 10 or higher for master mode
|
||||
It is 72 for a 16mhz Wiring board with 100kHz TWI */
|
||||
|
||||
// enable twi module, acks, and twi interrupt
|
||||
TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWEA);
|
||||
}
|
||||
|
||||
/*
|
||||
* Function twi_slaveInit
|
||||
* Desc sets slave address and enables interrupt
|
||||
* Input none
|
||||
* Output none
|
||||
*/
|
||||
void twi_setAddress(uint8_t address)
|
||||
{
|
||||
// set twi slave address (skip over TWGCE bit)
|
||||
TWAR = address << 1;
|
||||
}
|
||||
|
||||
/*
|
||||
* Function twi_readFrom
|
||||
* Desc attempts to become twi bus master and read a
|
||||
* series of bytes from a device on the bus
|
||||
* Input address: 7bit i2c device address
|
||||
* data: pointer to byte array
|
||||
* length: number of bytes to read into array
|
||||
* sendStop: Boolean indicating whether to send a stop at the end
|
||||
* Output number of bytes read
|
||||
*/
|
||||
uint8_t twi_readFrom(uint8_t address, uint8_t* data, uint8_t length, uint8_t sendStop)
|
||||
{
|
||||
uint8_t i;
|
||||
|
||||
// ensure data will fit into buffer
|
||||
if(TWI_BUFFER_LENGTH < length){
|
||||
return 0;
|
||||
}
|
||||
|
||||
// wait until twi is ready, become master receiver
|
||||
while(TWI_READY != twi_state){
|
||||
continue;
|
||||
}
|
||||
twi_state = TWI_MRX;
|
||||
twi_sendStop = sendStop;
|
||||
// reset error state (0xFF.. no error occured)
|
||||
twi_error = 0xFF;
|
||||
|
||||
// initialize buffer iteration vars
|
||||
twi_masterBufferIndex = 0;
|
||||
twi_masterBufferLength = length-1; // This is not intuitive, read on...
|
||||
// On receive, the previously configured ACK/NACK setting is transmitted in
|
||||
// response to the received byte before the interrupt is signalled.
|
||||
// Therefor we must actually set NACK when the _next_ to last byte is
|
||||
// received, causing that NACK to be sent in response to receiving the last
|
||||
// expected byte of data.
|
||||
|
||||
// build sla+w, slave device address + w bit
|
||||
twi_slarw = TW_READ;
|
||||
twi_slarw |= address << 1;
|
||||
|
||||
if (true == twi_inRepStart) {
|
||||
// if we're in the repeated start state, then we've already sent the start,
|
||||
// (@@@ we hope), and the TWI statemachine is just waiting for the address byte.
|
||||
// We need to remove ourselves from the repeated start state before we enable interrupts,
|
||||
// since the ISR is ASYNC, and we could get confused if we hit the ISR before cleaning
|
||||
// up. Also, don't enable the START interrupt. There may be one pending from the
|
||||
// repeated start that we sent outselves, and that would really confuse things.
|
||||
twi_inRepStart = false; // remember, we're dealing with an ASYNC ISR
|
||||
TWDR = twi_slarw;
|
||||
TWCR = _BV(TWINT) | _BV(TWEA) | _BV(TWEN) | _BV(TWIE); // enable INTs, but not START
|
||||
}
|
||||
else
|
||||
// send start condition
|
||||
TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWEA) | _BV(TWINT) | _BV(TWSTA);
|
||||
|
||||
// wait for read operation to complete
|
||||
while(TWI_MRX == twi_state){
|
||||
continue;
|
||||
}
|
||||
|
||||
if (twi_masterBufferIndex < length)
|
||||
length = twi_masterBufferIndex;
|
||||
|
||||
// copy twi buffer to data
|
||||
for(i = 0; i < length; ++i){
|
||||
data[i] = twi_masterBuffer[i];
|
||||
}
|
||||
|
||||
return length;
|
||||
}
|
||||
|
||||
/*
|
||||
* Function twi_writeTo
|
||||
* Desc attempts to become twi bus master and write a
|
||||
* series of bytes to a device on the bus
|
||||
* Input address: 7bit i2c device address
|
||||
* data: pointer to byte array
|
||||
* length: number of bytes in array
|
||||
* wait: boolean indicating to wait for write or not
|
||||
* sendStop: boolean indicating whether or not to send a stop at the end
|
||||
* Output 0 .. success
|
||||
* 1 .. length to long for buffer
|
||||
* 2 .. address send, NACK received
|
||||
* 3 .. data send, NACK received
|
||||
* 4 .. other twi error (lost bus arbitration, bus error, ..)
|
||||
*/
|
||||
uint8_t twi_writeTo(uint8_t address, uint8_t* data, uint8_t length, uint8_t wait, uint8_t sendStop)
|
||||
{
|
||||
uint8_t i;
|
||||
|
||||
// ensure data will fit into buffer
|
||||
if(TWI_BUFFER_LENGTH < length){
|
||||
return 1;
|
||||
}
|
||||
|
||||
// wait until twi is ready, become master transmitter
|
||||
while(TWI_READY != twi_state){
|
||||
continue;
|
||||
}
|
||||
twi_state = TWI_MTX;
|
||||
twi_sendStop = sendStop;
|
||||
// reset error state (0xFF.. no error occured)
|
||||
twi_error = 0xFF;
|
||||
|
||||
// initialize buffer iteration vars
|
||||
twi_masterBufferIndex = 0;
|
||||
twi_masterBufferLength = length;
|
||||
|
||||
// copy data to twi buffer
|
||||
for(i = 0; i < length; ++i){
|
||||
twi_masterBuffer[i] = data[i];
|
||||
}
|
||||
|
||||
// build sla+w, slave device address + w bit
|
||||
twi_slarw = TW_WRITE;
|
||||
twi_slarw |= address << 1;
|
||||
|
||||
// if we're in a repeated start, then we've already sent the START
|
||||
// in the ISR. Don't do it again.
|
||||
//
|
||||
if (true == twi_inRepStart) {
|
||||
// if we're in the repeated start state, then we've already sent the start,
|
||||
// (@@@ we hope), and the TWI statemachine is just waiting for the address byte.
|
||||
// We need to remove ourselves from the repeated start state before we enable interrupts,
|
||||
// since the ISR is ASYNC, and we could get confused if we hit the ISR before cleaning
|
||||
// up. Also, don't enable the START interrupt. There may be one pending from the
|
||||
// repeated start that we sent outselves, and that would really confuse things.
|
||||
twi_inRepStart = false; // remember, we're dealing with an ASYNC ISR
|
||||
TWDR = twi_slarw;
|
||||
TWCR = _BV(TWINT) | _BV(TWEA) | _BV(TWEN) | _BV(TWIE); // enable INTs, but not START
|
||||
}
|
||||
else
|
||||
// send start condition
|
||||
TWCR = _BV(TWINT) | _BV(TWEA) | _BV(TWEN) | _BV(TWIE) | _BV(TWSTA); // enable INTs
|
||||
|
||||
// wait for write operation to complete
|
||||
while(wait && (TWI_MTX == twi_state)){
|
||||
continue;
|
||||
}
|
||||
|
||||
if (twi_error == 0xFF)
|
||||
return 0; // success
|
||||
else if (twi_error == TW_MT_SLA_NACK)
|
||||
return 2; // error: address send, nack received
|
||||
else if (twi_error == TW_MT_DATA_NACK)
|
||||
return 3; // error: data send, nack received
|
||||
else
|
||||
return 4; // other twi error
|
||||
}
|
||||
|
||||
/*
|
||||
* Function twi_transmit
|
||||
* Desc fills slave tx buffer with data
|
||||
* must be called in slave tx event callback
|
||||
* Input data: pointer to byte array
|
||||
* length: number of bytes in array
|
||||
* Output 1 length too long for buffer
|
||||
* 2 not slave transmitter
|
||||
* 0 ok
|
||||
*/
|
||||
uint8_t twi_transmit(const uint8_t* data, uint8_t length)
|
||||
{
|
||||
uint8_t i;
|
||||
|
||||
// ensure data will fit into buffer
|
||||
if(TWI_BUFFER_LENGTH < length){
|
||||
return 1;
|
||||
}
|
||||
|
||||
// ensure we are currently a slave transmitter
|
||||
if(TWI_STX != twi_state){
|
||||
return 2;
|
||||
}
|
||||
|
||||
// set length and copy data into tx buffer
|
||||
twi_txBufferLength = length;
|
||||
for(i = 0; i < length; ++i){
|
||||
twi_txBuffer[i] = data[i];
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* Function twi_attachSlaveRxEvent
|
||||
* Desc sets function called before a slave read operation
|
||||
* Input function: callback function to use
|
||||
* Output none
|
||||
*/
|
||||
void twi_attachSlaveRxEvent( void (*function)(uint8_t*, int) )
|
||||
{
|
||||
twi_onSlaveReceive = function;
|
||||
}
|
||||
|
||||
/*
|
||||
* Function twi_attachSlaveTxEvent
|
||||
* Desc sets function called before a slave write operation
|
||||
* Input function: callback function to use
|
||||
* Output none
|
||||
*/
|
||||
void twi_attachSlaveTxEvent( void (*function)(void) )
|
||||
{
|
||||
twi_onSlaveTransmit = function;
|
||||
}
|
||||
|
||||
/*
|
||||
* Function twi_reply
|
||||
* Desc sends byte or readys receive line
|
||||
* Input ack: byte indicating to ack or to nack
|
||||
* Output none
|
||||
*/
|
||||
void twi_reply(uint8_t ack)
|
||||
{
|
||||
// transmit master read ready signal, with or without ack
|
||||
if(ack){
|
||||
TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWINT) | _BV(TWEA);
|
||||
}else{
|
||||
TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWINT);
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Function twi_stop
|
||||
* Desc relinquishes bus master status
|
||||
* Input none
|
||||
* Output none
|
||||
*/
|
||||
void twi_stop(void)
|
||||
{
|
||||
// send stop condition
|
||||
TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWEA) | _BV(TWINT) | _BV(TWSTO);
|
||||
|
||||
// wait for stop condition to be exectued on bus
|
||||
// TWINT is not set after a stop condition!
|
||||
while(TWCR & _BV(TWSTO)){
|
||||
continue;
|
||||
}
|
||||
|
||||
// update twi state
|
||||
twi_state = TWI_READY;
|
||||
}
|
||||
|
||||
/*
|
||||
* Function twi_releaseBus
|
||||
* Desc releases bus control
|
||||
* Input none
|
||||
* Output none
|
||||
*/
|
||||
void twi_releaseBus(void)
|
||||
{
|
||||
// release bus
|
||||
TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWEA) | _BV(TWINT);
|
||||
|
||||
// update twi state
|
||||
twi_state = TWI_READY;
|
||||
}
|
||||
|
||||
SIGNAL(TWI_vect)
|
||||
{
|
||||
switch(TW_STATUS){
|
||||
// All Master
|
||||
case TW_START: // sent start condition
|
||||
case TW_REP_START: // sent repeated start condition
|
||||
// copy device address and r/w bit to output register and ack
|
||||
TWDR = twi_slarw;
|
||||
twi_reply(1);
|
||||
break;
|
||||
|
||||
// Master Transmitter
|
||||
case TW_MT_SLA_ACK: // slave receiver acked address
|
||||
case TW_MT_DATA_ACK: // slave receiver acked data
|
||||
// if there is data to send, send it, otherwise stop
|
||||
if(twi_masterBufferIndex < twi_masterBufferLength){
|
||||
// copy data to output register and ack
|
||||
TWDR = twi_masterBuffer[twi_masterBufferIndex++];
|
||||
twi_reply(1);
|
||||
}else{
|
||||
if (twi_sendStop)
|
||||
twi_stop();
|
||||
else {
|
||||
twi_inRepStart = true; // we're gonna send the START
|
||||
// don't enable the interrupt. We'll generate the start, but we
|
||||
// avoid handling the interrupt until we're in the next transaction,
|
||||
// at the point where we would normally issue the start.
|
||||
TWCR = _BV(TWINT) | _BV(TWSTA)| _BV(TWEN) ;
|
||||
twi_state = TWI_READY;
|
||||
}
|
||||
}
|
||||
break;
|
||||
case TW_MT_SLA_NACK: // address sent, nack received
|
||||
twi_error = TW_MT_SLA_NACK;
|
||||
twi_stop();
|
||||
break;
|
||||
case TW_MT_DATA_NACK: // data sent, nack received
|
||||
twi_error = TW_MT_DATA_NACK;
|
||||
twi_stop();
|
||||
break;
|
||||
case TW_MT_ARB_LOST: // lost bus arbitration
|
||||
twi_error = TW_MT_ARB_LOST;
|
||||
twi_releaseBus();
|
||||
break;
|
||||
|
||||
// Master Receiver
|
||||
case TW_MR_DATA_ACK: // data received, ack sent
|
||||
// put byte into buffer
|
||||
twi_masterBuffer[twi_masterBufferIndex++] = TWDR;
|
||||
case TW_MR_SLA_ACK: // address sent, ack received
|
||||
// ack if more bytes are expected, otherwise nack
|
||||
if(twi_masterBufferIndex < twi_masterBufferLength){
|
||||
twi_reply(1);
|
||||
}else{
|
||||
twi_reply(0);
|
||||
}
|
||||
break;
|
||||
case TW_MR_DATA_NACK: // data received, nack sent
|
||||
// put final byte into buffer
|
||||
twi_masterBuffer[twi_masterBufferIndex++] = TWDR;
|
||||
if (twi_sendStop)
|
||||
twi_stop();
|
||||
else {
|
||||
twi_inRepStart = true; // we're gonna send the START
|
||||
// don't enable the interrupt. We'll generate the start, but we
|
||||
// avoid handling the interrupt until we're in the next transaction,
|
||||
// at the point where we would normally issue the start.
|
||||
TWCR = _BV(TWINT) | _BV(TWSTA)| _BV(TWEN) ;
|
||||
twi_state = TWI_READY;
|
||||
}
|
||||
break;
|
||||
case TW_MR_SLA_NACK: // address sent, nack received
|
||||
twi_stop();
|
||||
break;
|
||||
// TW_MR_ARB_LOST handled by TW_MT_ARB_LOST case
|
||||
|
||||
// Slave Receiver
|
||||
case TW_SR_SLA_ACK: // addressed, returned ack
|
||||
case TW_SR_GCALL_ACK: // addressed generally, returned ack
|
||||
case TW_SR_ARB_LOST_SLA_ACK: // lost arbitration, returned ack
|
||||
case TW_SR_ARB_LOST_GCALL_ACK: // lost arbitration, returned ack
|
||||
// enter slave receiver mode
|
||||
twi_state = TWI_SRX;
|
||||
// indicate that rx buffer can be overwritten and ack
|
||||
twi_rxBufferIndex = 0;
|
||||
twi_reply(1);
|
||||
break;
|
||||
case TW_SR_DATA_ACK: // data received, returned ack
|
||||
case TW_SR_GCALL_DATA_ACK: // data received generally, returned ack
|
||||
// if there is still room in the rx buffer
|
||||
if(twi_rxBufferIndex < TWI_BUFFER_LENGTH){
|
||||
// put byte in buffer and ack
|
||||
twi_rxBuffer[twi_rxBufferIndex++] = TWDR;
|
||||
twi_reply(1);
|
||||
}else{
|
||||
// otherwise nack
|
||||
twi_reply(0);
|
||||
}
|
||||
break;
|
||||
case TW_SR_STOP: // stop or repeated start condition received
|
||||
// put a null char after data if there's room
|
||||
if(twi_rxBufferIndex < TWI_BUFFER_LENGTH){
|
||||
twi_rxBuffer[twi_rxBufferIndex] = '\0';
|
||||
}
|
||||
// sends ack and stops interface for clock stretching
|
||||
twi_stop();
|
||||
// callback to user defined callback
|
||||
twi_onSlaveReceive(twi_rxBuffer, twi_rxBufferIndex);
|
||||
// since we submit rx buffer to "wire" library, we can reset it
|
||||
twi_rxBufferIndex = 0;
|
||||
// ack future responses and leave slave receiver state
|
||||
twi_releaseBus();
|
||||
break;
|
||||
case TW_SR_DATA_NACK: // data received, returned nack
|
||||
case TW_SR_GCALL_DATA_NACK: // data received generally, returned nack
|
||||
// nack back at master
|
||||
twi_reply(0);
|
||||
break;
|
||||
|
||||
// Slave Transmitter
|
||||
case TW_ST_SLA_ACK: // addressed, returned ack
|
||||
case TW_ST_ARB_LOST_SLA_ACK: // arbitration lost, returned ack
|
||||
// enter slave transmitter mode
|
||||
twi_state = TWI_STX;
|
||||
// ready the tx buffer index for iteration
|
||||
twi_txBufferIndex = 0;
|
||||
// set tx buffer length to be zero, to verify if user changes it
|
||||
twi_txBufferLength = 0;
|
||||
// request for txBuffer to be filled and length to be set
|
||||
// note: user must call twi_transmit(bytes, length) to do this
|
||||
twi_onSlaveTransmit();
|
||||
// if they didn't change buffer & length, initialize it
|
||||
if(0 == twi_txBufferLength){
|
||||
twi_txBufferLength = 1;
|
||||
twi_txBuffer[0] = 0x00;
|
||||
}
|
||||
// transmit first byte from buffer, fall
|
||||
case TW_ST_DATA_ACK: // byte sent, ack returned
|
||||
// copy data to output register
|
||||
TWDR = twi_txBuffer[twi_txBufferIndex++];
|
||||
// if there is more to send, ack, otherwise nack
|
||||
if(twi_txBufferIndex < twi_txBufferLength){
|
||||
twi_reply(1);
|
||||
}else{
|
||||
twi_reply(0);
|
||||
}
|
||||
break;
|
||||
case TW_ST_DATA_NACK: // received nack, we are done
|
||||
case TW_ST_LAST_DATA: // received ack, but we are done already!
|
||||
// ack future responses
|
||||
twi_reply(1);
|
||||
// leave slave receiver state
|
||||
twi_state = TWI_READY;
|
||||
break;
|
||||
|
||||
// All
|
||||
case TW_NO_INFO: // no state information
|
||||
break;
|
||||
case TW_BUS_ERROR: // bus error, illegal stop/start
|
||||
twi_error = TW_BUS_ERROR;
|
||||
twi_stop();
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
53
platform/osd-merkur/dev/old/twi.h
Normal file
53
platform/osd-merkur/dev/old/twi.h
Normal file
|
@ -0,0 +1,53 @@
|
|||
/*
|
||||
twi.h - TWI/I2C library for Wiring & Arduino
|
||||
Copyright (c) 2006 Nicholas Zambetti. All right reserved.
|
||||
|
||||
This library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
This library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with this library; if not, write to the Free Software
|
||||
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
#ifndef twi_h
|
||||
#define twi_h
|
||||
|
||||
#include <inttypes.h>
|
||||
|
||||
//#define ATMEGA8
|
||||
|
||||
#ifndef TWI_FREQ
|
||||
#define TWI_FREQ 100000L
|
||||
#endif
|
||||
|
||||
#ifndef TWI_BUFFER_LENGTH
|
||||
#define TWI_BUFFER_LENGTH 32
|
||||
#endif
|
||||
|
||||
#define TWI_READY 0
|
||||
#define TWI_MRX 1
|
||||
#define TWI_MTX 2
|
||||
#define TWI_SRX 3
|
||||
#define TWI_STX 4
|
||||
|
||||
void twi_init(void);
|
||||
void twi_setAddress(uint8_t);
|
||||
uint8_t twi_readFrom(uint8_t, uint8_t*, uint8_t, uint8_t);
|
||||
uint8_t twi_writeTo(uint8_t, uint8_t*, uint8_t, uint8_t, uint8_t);
|
||||
uint8_t twi_transmit(const uint8_t*, uint8_t);
|
||||
void twi_attachSlaveRxEvent( void (*)(uint8_t*, int) );
|
||||
void twi_attachSlaveTxEvent( void (*)(void) );
|
||||
void twi_reply(uint8_t);
|
||||
void twi_stop(void);
|
||||
void twi_releaseBus(void);
|
||||
|
||||
#endif
|
||||
|
Loading…
Reference in a new issue