299bed1c05
5.9.1f * Upgrade library ArduinoJson to 5.11.2 * Upgrade library IRRemoteEsp8266 to 2.2.1 + 2 commits but tweaked some protocols to keep code usage small * Upgrade library NeoPixelBus to 2.2.9 * Upgrade library OneWire to 2.3.3 + 6 commits * Formalize library PubSubClient to 2.6 + 9 commits and additional delay * Add optional ADS1115 driver as alternative for unsupported I2Cdevlib in esp8266-core 2.4.0-rc2 * Fix wrong response name for command HlwISet (#1214)
83 lines
2.1 KiB
C++
83 lines
2.1 KiB
C++
// Copyright 2017 David Conran
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#include "IRutils.h"
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#ifndef UNIT_TEST
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#include <Arduino.h>
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#endif
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#define __STDC_LIMIT_MACROS
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#include <stdint.h>
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#include <algorithm>
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#ifndef ARDUINO
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#include <string>
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#endif
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#include "IRrecv.h"
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// Reverse the order of the requested least significant nr. of bits.
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// Args:
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// input: Bit pattern/integer to reverse.
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// nbits: Nr. of bits to reverse.
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// Returns:
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// The reversed bit pattern.
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uint64_t reverseBits(uint64_t input, uint16_t nbits) {
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if (nbits <= 1)
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return input; // Reversing <= 1 bits makes no change at all.
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// Cap the nr. of bits to rotate to the max nr. of bits in the input.
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nbits = std::min(nbits, (uint16_t) (sizeof(input) * 8));
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uint64_t output = 0;
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for (uint16_t i = 0; i < nbits; i++) {
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output <<= 1;
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output |= (input & 1);
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input >>= 1;
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}
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// Merge any remaining unreversed bits back to the top of the reversed bits.
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return (input << nbits) | output;
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}
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// Convert a uint64_t (unsigned long long) to a string.
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// Arduino String/toInt/Serial.print() can't handle printing 64 bit values.
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//
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// Args:
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// input: The value to print
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// base: The output base.
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// Returns:
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// A string representation of the integer.
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// Note: Based on Arduino's Print::printNumber()
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#ifdef ARDUINO // Arduino's & C++'s string implementations can't co-exist.
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String uint64ToString(uint64_t input, uint8_t base) {
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String result = "";
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#else
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std::string uint64ToString(uint64_t input, uint8_t base) {
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std::string result = "";
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#endif
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// prevent issues if called with base <= 1
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if (base < 2) base = 10;
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// Check we have a base that we can actually print.
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// i.e. [0-9A-Z] == 36
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if (base > 36) base = 10;
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do {
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char c = input % base;
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input /= base;
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if (c < 10)
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c +='0';
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else
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c += 'A' - 10;
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result = c + result;
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} while (input);
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return result;
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}
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#ifdef ARDUINO
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// Print a uint64_t/unsigned long long to the Serial port
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// Serial.print() can't handle printing long longs. (uint64_t)
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//
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// Args:
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// input: The value to print
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// base: The output base.
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void serialPrintUint64(uint64_t input, uint8_t base) {
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Serial.print(uint64ToString(input, base));
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}
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#endif
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