esphome/esphome/components/remote_base/pronto_protocol.cpp

136 lines
5.0 KiB
C++

/*
* @file irPronto.cpp
* @brief In this file, the functions IRrecv::compensateAndPrintPronto and IRsend::sendPronto are defined.
*
* See http://www.harctoolbox.org/Glossary.html#ProntoSemantics
* Pronto database http://www.remotecentral.com/search.htm
*
* This file is part of Arduino-IRremote https://github.com/Arduino-IRremote/Arduino-IRremote.
*
************************************************************************************
* MIT License
*
* Copyright (c) 2020 Bengt Martensson
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is furnished
* to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
* PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
************************************************************************************
*/
#include "pronto_protocol.h"
#include "esphome/core/log.h"
namespace esphome {
namespace remote_base {
static const char *const TAG = "remote.pronto";
// DO NOT EXPORT from this file
static const uint16_t MICROSECONDS_T_MAX = 0xFFFFU;
static const uint16_t LEARNED_TOKEN = 0x0000U;
static const uint16_t LEARNED_NON_MODULATED_TOKEN = 0x0100U;
static const uint16_t BITS_IN_HEXADECIMAL = 4U;
static const uint16_t DIGITS_IN_PRONTO_NUMBER = 4U;
static const uint16_t NUMBERS_IN_PREAMBLE = 4U;
static const uint16_t HEX_MASK = 0xFU;
static const uint32_t REFERENCE_FREQUENCY = 4145146UL;
static const uint16_t FALLBACK_FREQUENCY = 64767U; // To use with frequency = 0;
static const uint32_t MICROSECONDS_IN_SECONDS = 1000000UL;
static const uint16_t PRONTO_DEFAULT_GAP = 45000;
static uint16_t to_frequency_k_hz(uint16_t code) {
if (code == 0)
return 0;
return ((REFERENCE_FREQUENCY / code) + 500) / 1000;
}
/*
* Parse the string given as Pronto Hex, and send it a number of times given as argument.
*/
void ProntoProtocol::send_pronto_(RemoteTransmitData *dst, const std::vector<uint16_t> &data) {
if (data.size() < 4)
return;
uint16_t timebase = (MICROSECONDS_IN_SECONDS * data[1] + REFERENCE_FREQUENCY / 2) / REFERENCE_FREQUENCY;
uint16_t khz;
switch (data[0]) {
case LEARNED_TOKEN: // normal, "learned"
khz = to_frequency_k_hz(data[1]);
break;
case LEARNED_NON_MODULATED_TOKEN: // non-demodulated, "learned"
khz = 0U;
break;
default:
return; // There are other types, but they are not handled yet.
}
ESP_LOGD(TAG, "Send Pronto: frequency=%dkHz", khz);
dst->set_carrier_frequency(khz * 1000);
uint16_t intros = 2 * data[2];
uint16_t repeats = 2 * data[3];
ESP_LOGD(TAG, "Send Pronto: intros=%d", intros);
ESP_LOGD(TAG, "Send Pronto: repeats=%d", repeats);
if (NUMBERS_IN_PREAMBLE + intros + repeats != data.size()) { // inconsistent sizes
return;
}
/*
* Generate a new microseconds timing array for sendRaw.
* If recorded by IRremote, intro contains the whole IR data and repeat is empty
*/
dst->reserve(intros + repeats);
for (uint16_t i = 0; i < intros + repeats; i += 2) {
uint32_t duration0 = ((uint32_t) data[i + 0 + NUMBERS_IN_PREAMBLE]) * timebase;
duration0 = duration0 < MICROSECONDS_T_MAX ? duration0 : MICROSECONDS_T_MAX;
uint32_t duration1 = ((uint32_t) data[i + 1 + NUMBERS_IN_PREAMBLE]) * timebase;
duration1 = duration1 < MICROSECONDS_T_MAX ? duration1 : MICROSECONDS_T_MAX;
dst->item(duration0, duration1);
}
}
void ProntoProtocol::send_pronto_(RemoteTransmitData *dst, const std::string &str) {
size_t len = str.length() / (DIGITS_IN_PRONTO_NUMBER + 1) + 1;
std::vector<uint16_t> data;
const char *p = str.c_str();
char *endptr[1];
for (size_t i = 0; i < len; i++) {
uint16_t x = strtol(p, endptr, 16);
if (x == 0 && i >= NUMBERS_IN_PREAMBLE) {
// Alignment error?, bail immediately (often right result).
break;
}
data.push_back(x); // If input is conforming, there can be no overflow!
p = *endptr;
}
send_pronto_(dst, data);
}
void ProntoProtocol::encode(RemoteTransmitData *dst, const ProntoData &data) { send_pronto_(dst, data.data); }
optional<ProntoData> ProntoProtocol::decode(RemoteReceiveData src) { return {}; }
void ProntoProtocol::dump(const ProntoData &data) { ESP_LOGD(TAG, "Received Pronto: data=%s", data.data.c_str()); }
} // namespace remote_base
} // namespace esphome