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Remote base pronto receive (#2826)

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Co-authored-by: Jesse Hills <3060199+jesserockz@users.noreply.github.com>
This commit is contained in:
cvwillegen 2022-04-12 21:39:38 +02:00 committed by GitHub
parent 8b2c032da6
commit 7895cd92cd
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 110 additions and 3 deletions
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101
esphome/components/remote_base/pronto_protocol.cpp
View file

@ -40,6 +40,24 @@ namespace remote_base {
static const char *const TAG = "remote.pronto";
bool ProntoData::operator==(const ProntoData &rhs) const {
std::vector<uint16_t> data1 = encode_pronto(data);
std::vector<uint16_t> data2 = encode_pronto(rhs.data);
uint32_t total_diff = 0;
// Don't need to check the last one, it's the large gap at the end.
for (std::vector<uint16_t>::size_type i = 0; i < data1.size() - 1; ++i) {
int diff = data2[i] - data1[i];
diff *= diff;
if (diff > 9)
return false;
total_diff += diff;
}
return total_diff <= data1.size() * 3;
}
// DO NOT EXPORT from this file
static const uint16_t MICROSECONDS_T_MAX = 0xFFFFU;
static const uint16_t LEARNED_TOKEN = 0x0000U;
@ -52,6 +70,7 @@ 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 const uint16_t MARK_EXCESS_MICROS = 20;
static uint16_t to_frequency_k_hz(uint16_t code) {
if (code == 0)
@ -107,7 +126,7 @@ void ProntoProtocol::send_pronto_(RemoteTransmitData *dst, const std::vector<uin
}
}
void ProntoProtocol::send_pronto_(RemoteTransmitData *dst, const std::string &str) {
std::vector<uint16_t> encode_pronto(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();
@ -122,12 +141,90 @@ void ProntoProtocol::send_pronto_(RemoteTransmitData *dst, const std::string &st
data.push_back(x); // If input is conforming, there can be no overflow!
p = *endptr;
}
return data;
}
void ProntoProtocol::send_pronto_(RemoteTransmitData *dst, const std::string &str) {
std::vector<uint16_t> data = encode_pronto(str);
send_pronto_(dst, data);
}
void ProntoProtocol::encode(RemoteTransmitData *dst, const ProntoData &data) { send_pronto_(dst, data.data); }
optional<ProntoData> ProntoProtocol::decode(RemoteReceiveData src) { return {}; }
uint16_t ProntoProtocol::effective_frequency_(uint16_t frequency) {
return frequency > 0 ? frequency : FALLBACK_FREQUENCY;
}
uint16_t ProntoProtocol::to_timebase_(uint16_t frequency) {
return MICROSECONDS_IN_SECONDS / effective_frequency_(frequency);
}
uint16_t ProntoProtocol::to_frequency_code_(uint16_t frequency) {
return REFERENCE_FREQUENCY / effective_frequency_(frequency);
}
std::string ProntoProtocol::dump_digit_(uint8_t x) {
return std::string(1, (char) (x <= 9 ? ('0' + x) : ('A' + (x - 10))));
}
std::string ProntoProtocol::dump_number_(uint16_t number, bool end /* = false */) {
std::string num;
for (uint8_t i = 0; i < DIGITS_IN_PRONTO_NUMBER; ++i) {
uint8_t shifts = BITS_IN_HEXADECIMAL * (DIGITS_IN_PRONTO_NUMBER - 1 - i);
num += dump_digit_((number >> shifts) & HEX_MASK);
}
if (!end)
num += ' ';
return num;
}
std::string ProntoProtocol::dump_duration_(uint32_t duration, uint16_t timebase, bool end /* = false */) {
return dump_number_((duration + timebase / 2) / timebase, end);
}
std::string ProntoProtocol::compensate_and_dump_sequence_(std::vector<int32_t> *data, uint16_t timebase) {
std::string out;
for (std::vector<int32_t>::size_type i = 0; i < data->size() - 1; i++) {
int32_t t_length = data->at(i);
uint32_t t_duration;
if (t_length > 0) {
// Mark
t_duration = t_length - MARK_EXCESS_MICROS;
} else {
t_duration = -t_length + MARK_EXCESS_MICROS;
}
out += dump_duration_(t_duration, timebase);
}
// append minimum gap
out += dump_duration_(PRONTO_DEFAULT_GAP, timebase, true);
return out;
}
optional<ProntoData> ProntoProtocol::decode(RemoteReceiveData src) {
ProntoData out;
uint16_t frequency = 38000U;
std::vector<int32_t> *data = src.get_raw_data();
std::string prontodata;
prontodata += dump_number_(frequency > 0 ? LEARNED_TOKEN : LEARNED_NON_MODULATED_TOKEN);
prontodata += dump_number_(to_frequency_code_(frequency));
prontodata += dump_number_((data->size() + 1) / 2);
prontodata += dump_number_(0);
uint16_t timebase = to_timebase_(frequency);
prontodata += compensate_and_dump_sequence_(data, timebase);
out.data = prontodata;
return out;
}
void ProntoProtocol::dump(const ProntoData &data) { ESP_LOGD(TAG, "Received Pronto: data=%s", data.data.c_str()); }

12
esphome/components/remote_base/pronto_protocol.h
View file

@ -6,10 +6,12 @@
namespace esphome {
namespace remote_base {
std::vector<uint16_t> encode_pronto(const std::string &str);
struct ProntoData {
std::string data;
bool operator==(const ProntoData &rhs) const { return data == rhs.data; }
bool operator==(const ProntoData &rhs) const;
};
class ProntoProtocol : public RemoteProtocol<ProntoData> {
@ -17,6 +19,14 @@ class ProntoProtocol : public RemoteProtocol<ProntoData> {
void send_pronto_(RemoteTransmitData *dst, const std::vector<uint16_t> &data);
void send_pronto_(RemoteTransmitData *dst, const std::string &str);
uint16_t effective_frequency_(uint16_t frequency);
uint16_t to_timebase_(uint16_t frequency);
uint16_t to_frequency_code_(uint16_t frequency);
std::string dump_digit_(uint8_t x);
std::string dump_number_(uint16_t number, bool end = false);
std::string dump_duration_(uint32_t duration, uint16_t timebase, bool end = false);
std::string compensate_and_dump_sequence_(std::vector<int32_t> *data, uint16_t timebase);
public:
void encode(RemoteTransmitData *dst, const ProntoData &data) override;
optional<ProntoData> decode(RemoteReceiveData src) override;