You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
272 lines
7.1 KiB
272 lines
7.1 KiB
/*
|
|
|
|
ITEAD RF BRIDGE MODULE
|
|
|
|
Copyright (C) 2017 by Xose Pérez <xose dot perez at gmail dot com>
|
|
|
|
*/
|
|
|
|
#ifdef SONOFF_RFBRIDGE
|
|
|
|
// -----------------------------------------------------------------------------
|
|
// DEFINITIONS
|
|
// -----------------------------------------------------------------------------
|
|
|
|
#define RF_MESSAGE_SIZE 9
|
|
#define RF_CODE_START 0xAA
|
|
#define RF_CODE_ACK 0xA0
|
|
#define RF_CODE_LEARN 0xA1
|
|
#define RF_CODE_LEARN_KO 0xA2
|
|
#define RF_CODE_LEARN_OK 0xA3
|
|
#define RF_CODE_RFIN 0xA4
|
|
#define RF_CODE_RFOUT 0xA5
|
|
#define RF_CODE_STOP 0x55
|
|
|
|
// -----------------------------------------------------------------------------
|
|
// GLOBALS TO THE MODULE
|
|
// -----------------------------------------------------------------------------
|
|
|
|
unsigned char _uartbuf[RF_MESSAGE_SIZE+3] = {0};
|
|
unsigned char _uartpos = 0;
|
|
unsigned char _learnId = 0;
|
|
bool _learnState = true;
|
|
|
|
// -----------------------------------------------------------------------------
|
|
// PRIVATES
|
|
// -----------------------------------------------------------------------------
|
|
|
|
void _rfbAck() {
|
|
DEBUG_MSG_P(PSTR("[RFBRIDGE] Sending ACK\n"));
|
|
Serial.println();
|
|
Serial.write(RF_CODE_START);
|
|
Serial.write(RF_CODE_ACK);
|
|
Serial.write(RF_CODE_STOP);
|
|
Serial.flush();
|
|
Serial.println();
|
|
}
|
|
|
|
void _rfbLearn() {
|
|
DEBUG_MSG_P(PSTR("[RFBRIDGE] Sending LEARN\n"));
|
|
Serial.println();
|
|
Serial.write(RF_CODE_START);
|
|
Serial.write(RF_CODE_LEARN);
|
|
Serial.write(RF_CODE_STOP);
|
|
Serial.flush();
|
|
Serial.println();
|
|
}
|
|
|
|
void _rfbSend(byte * message) {
|
|
Serial.println();
|
|
Serial.write(RF_CODE_START);
|
|
Serial.write(RF_CODE_RFOUT);
|
|
for (unsigned char j=0; j<RF_MESSAGE_SIZE; j++) {
|
|
Serial.write(message[j]);
|
|
}
|
|
Serial.write(RF_CODE_STOP);
|
|
Serial.flush();
|
|
Serial.println();
|
|
}
|
|
|
|
void _rfbSend(byte * message, int times) {
|
|
|
|
char buffer[RF_MESSAGE_SIZE];
|
|
_rfbToChar(message, buffer);
|
|
DEBUG_MSG_P(PSTR("[RFBRIDGE] Sending MESSAGE '%s' %d time(s)\n"), buffer, times);
|
|
|
|
for (int i=0; i<times; i++) {
|
|
if (i>0) {
|
|
unsigned long start = millis();
|
|
while (millis() - start < RF_SEND_DELAY) delay(1);
|
|
}
|
|
_rfbSend(message);
|
|
}
|
|
|
|
}
|
|
|
|
void _rfbDecode() {
|
|
|
|
byte action = _uartbuf[0];
|
|
char buffer[RF_MESSAGE_SIZE * 2 + 1] = {0};
|
|
DEBUG_MSG_P(PSTR("[RFBRIDGE] Action 0x%02X\n"), action);
|
|
|
|
if (action == RF_CODE_LEARN_KO) {
|
|
_rfbAck();
|
|
DEBUG_MSG_P(PSTR("[RFBRIDGE] Learn timeout\n"));
|
|
}
|
|
|
|
if (action == RF_CODE_LEARN_OK || action == RF_CODE_RFIN) {
|
|
_rfbToChar(&_uartbuf[1], buffer);
|
|
mqttSend(MQTT_TOPIC_RFIN, buffer);
|
|
_rfbAck();
|
|
}
|
|
|
|
if (action == RF_CODE_LEARN_OK) {
|
|
// TODO: notify websocket
|
|
_rfbStore(_learnId, _learnState, buffer);
|
|
DEBUG_MSG_P(PSTR("[RFBRIDGE] Learn success. Storing %d-%s => '%s'\n"), _learnId, _learnState ? "ON" : "OFF", buffer);
|
|
}
|
|
|
|
if (action == RF_CODE_RFIN) {
|
|
|
|
DEBUG_MSG_P(PSTR("[RFBRIDGE] Forward message '%s'\n"), buffer);
|
|
|
|
// Look for the code
|
|
unsigned char id, state;
|
|
bool found = false;
|
|
for (id=0; id<relayCount(); id++) {
|
|
for (state=0; state<2; state++) {
|
|
String code = _rfbRetrieve(id, state == 1);
|
|
if (code.length()) {
|
|
if (code.endsWith(&buffer[12])) {
|
|
found = true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if (found) break;
|
|
}
|
|
if (found) relayStatus(id, state == 1);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
void _rfbReceive() {
|
|
|
|
static bool receiving = false;
|
|
|
|
while (Serial.available()) {
|
|
|
|
yield();
|
|
byte c = Serial.read();
|
|
//DEBUG_MSG_P(PSTR("[RFBRIDGE] Received 0x%02X\n"), c);
|
|
|
|
if (receiving) {
|
|
if (c == RF_CODE_STOP) {
|
|
_rfbDecode();
|
|
receiving = false;
|
|
} else {
|
|
_uartbuf[_uartpos++] = c;
|
|
}
|
|
} else if (c == RF_CODE_START) {
|
|
_uartpos = 0;
|
|
receiving = true;
|
|
}
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
/*
|
|
From an hexa char array ("A220EE...") to a byte array (half the size)
|
|
*/
|
|
bool _rfbToArray(const char * in, byte * out) {
|
|
if (strlen(in) != RF_MESSAGE_SIZE * 2) return false;
|
|
char tmp[3] = {0};
|
|
for (unsigned char p = 0; p<RF_MESSAGE_SIZE; p++) {
|
|
memcpy(tmp, &in[p*2], 2);
|
|
out[p] = strtol(tmp, NULL, 16);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/*
|
|
From a byte array to an hexa char array ("A220EE...", double the size)
|
|
*/
|
|
bool _rfbToChar(byte * in, char * out) {
|
|
for (unsigned char p = 0; p<RF_MESSAGE_SIZE; p++) {
|
|
sprintf(&out[p*2], "%02X", in[p]);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
void _rfbMqttCallback(unsigned int type, const char * topic, const char * payload) {
|
|
|
|
if (type == MQTT_CONNECT_EVENT) {
|
|
char buffer[strlen(MQTT_TOPIC_RFLEARN) + 3];
|
|
sprintf(buffer, "%s/+", MQTT_TOPIC_RFLEARN);
|
|
mqttSubscribe(buffer);
|
|
mqttSubscribe(MQTT_TOPIC_RFOUT);
|
|
}
|
|
|
|
if (type == MQTT_MESSAGE_EVENT) {
|
|
|
|
// Match topic
|
|
String t = mqttSubtopic((char *) topic);
|
|
|
|
// Check if should go into learn mode
|
|
if (t.startsWith(MQTT_TOPIC_RFLEARN)) {
|
|
|
|
_learnId = t.substring(strlen(MQTT_TOPIC_RFLEARN)+1).toInt();
|
|
if (_learnId >= relayCount()) {
|
|
DEBUG_MSG_P(PSTR("[RFBRIDGE] Wrong learnID (%d)\n"), _learnId);
|
|
return;
|
|
}
|
|
_learnState = (char)payload[0] != '0';
|
|
_rfbLearn();
|
|
|
|
}
|
|
|
|
if (t.equals(MQTT_TOPIC_RFOUT)) {
|
|
byte message[RF_MESSAGE_SIZE];
|
|
if (_rfbToArray(payload, message)) {
|
|
_rfbSend(message, RF_SEND_TIMES);
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
void _rfbStore(unsigned char id, bool status, char * code) {
|
|
char key[8] = {0};
|
|
sprintf(key, "rfb%d%s", id, status ? "on" : "off");
|
|
setSetting(key, code);
|
|
}
|
|
|
|
String _rfbRetrieve(unsigned char id, bool status) {
|
|
char key[8] = {0};
|
|
sprintf(key, "rfb%d%s", id, status ? "on" : "off");
|
|
return getSetting(key);
|
|
}
|
|
|
|
// -----------------------------------------------------------------------------
|
|
// PUBLIC
|
|
// -----------------------------------------------------------------------------
|
|
|
|
void rfbState(unsigned char id, bool status) {
|
|
String value = _rfbRetrieve(id, status);
|
|
DEBUG_MSG_P(PSTR("[RFBRIDGE] Retrieving value for %d-%s => %s\n"), id, status ? "ON" : "OFF", value.c_str());
|
|
if (value.length() > 0) {
|
|
byte message[RF_MESSAGE_SIZE];
|
|
_rfbToArray(value.c_str(), message);
|
|
_rfbSend(message, RF_SEND_TIMES);
|
|
}
|
|
}
|
|
|
|
void rfbLearn(unsigned char id, bool status) {
|
|
_learnId = id;
|
|
_learnState = status;
|
|
_rfbLearn();
|
|
}
|
|
|
|
void rfbForget(unsigned char id, bool status) {
|
|
char key[8] = {0};
|
|
sprintf(key, "rfb%d%s", id, status ? "on" : "off");
|
|
delSetting(key);
|
|
}
|
|
|
|
// -----------------------------------------------------------------------------
|
|
// SETUP & LOOP
|
|
// -----------------------------------------------------------------------------
|
|
|
|
void rfbSetup() {
|
|
mqttRegister(_rfbMqttCallback);
|
|
}
|
|
|
|
void rfbLoop() {
|
|
_rfbReceive();
|
|
}
|
|
|
|
#endif
|