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AskSin.cpp
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AskSin.cpp
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//- -----------------------------------------------------------------------------------------------------------------------
// AskSin driver implementation
// 2013-08-03 <horst@diebittners.de> Creative Commons - http://creativecommons.org/licenses/by-nc-sa/3.0/de/
// Trx868 documentation https://github.com/ccier/openhm/wiki/Trx868
// Parser sketch from: http://jeelabs.org/2010/10/24/parsing-input-commands/
//- -----------------------------------------------------------------------------------------------------------------------
#include "AskSin.h"
s_pci pci;
s_prl prl;
//- ----------------------------------------------------------------------------------------------------------------------
//- CC1101 communication functions ----------------------------------------------------------------------------------------
//- -----------------------------------------------------------------------------------------------------------------------
const uint8_t initVal[] PROGMEM = { // define init settings for TRX868
0x00, 0x2E, // IOCFG2: tristate // non inverted GDO2, high impedance tri state
0x01, 0x2E, // IOCFG1: tristate // low output drive strength, non inverted GD=1, high impedance tri state
0x02, 0x06, // IOCFG0: packet CRC ok // disable temperature sensor, non inverted GDO0, asserts when a sync word has been sent/received, and de-asserts at the end of the packet. in RX, the pin will also de-assert when a package is discarded due to address or maximum length filtering
0x03, 0x0D, // FIFOTHR: TX:9 / RX:56 // 0 ADC retention, 0 close in RX, TX FIFO = 9 / RX FIFO = 56 byte
0x04, 0xE9, // SYNC1 // Sync word
0x05, 0xCA, // SYNC0
0x06, 0x3D, // PKTLEN(x): 61 // packet length 61
0x07, 0x0C, // PKTCTRL1: // PQT = 0, CRC auto flush = 1, append status = 1, no address check
0x0B, 0x06, // FSCTRL1: // frequency synthesizer control
0x0D, 0x21, // FREQ2
0x0E, 0x65, // FREQ1
0x0F, 0x6A, // FREQ0
0x10, 0xC8, // MDMCFG4
0x11, 0x93, // MDMCFG3
0x12, 0x03, // MDMCFG2
0x15, 0x34, // DEVIATN
0x16, 0x01, // MCSM2
0x17, 0x30, // MCSM1: always go into IDLE
0x18, 0x18, // MCSM0
0x19, 0x16, // FOCCFG
0x1B, 0x43, // AGCTRL2
//0x1E, 0x28, // ..WOREVT1: tEVENT0 = 50 ms, RX timeout = 390 us
//0x1F, 0xA0, // ..WOREVT0:
//0x20, 0xFB, // ..WORCTRL: EVENT1 = 3, WOR_RES = 0
0x21, 0x56, // FREND1
0x25, 0x00,
0x26, 0x11, // FSCAL0
0x2D, 0x35, // TEST1
0x3E, 0xC3, // ?
};
void CC::init(void) { // initialize CC1101
#if defined(CC_DBG)
Serial << F("CC1101_init: ");
#endif
pinMode(SS, OUTPUT); // set pins for SPI communication
pinMode(MOSI, OUTPUT);
pinMode(MISO, INPUT);
pinMode(SCK, OUTPUT);
pinMode(GDO0, INPUT); // config GDO0 as input
digitalWrite(SS, HIGH); // SPI init
digitalWrite(SCK, HIGH);
digitalWrite(MOSI, LOW);
SPCR = _BV(SPE) | _BV(MSTR); // SPI speed = CLK/4
cc1101_Deselect(); // some deselect and selects to init the TRX868modul
delayMicroseconds(5);
cc1101_Select();
delayMicroseconds(10);
cc1101_Deselect();
delayMicroseconds(41);
cmdStrobe(CC1101_SRES); // send reset
delay(10);
#if defined(CC_DBG)
Serial << '1';
#endif
for (uint8_t i=0; i<sizeof(initVal); i += 2) { // write init value to TRX868
writeReg(pgm_read_byte(&initVal[i]), pgm_read_byte(&initVal[i + 1]));
}
#if defined(CC_DBG)
Serial << '2';
#endif
cmdStrobe(CC1101_SCAL); // calibrate frequency synthesizer and turn it off
while (readReg(CC1101_MARcurStatTE, CC1101_STATUS) != 1) { // waits until module gets ready
delayMicroseconds(1);
#if defined(CC_DBG)
Serial << '.';
#endif
}
#if defined(CC_DBG)
Serial << '3';
#endif
writeReg(CC1101_PATABLE, PA_MaxPower); // configure PATABLE
cmdStrobe(CC1101_SRX); // flush the RX buffer
cmdStrobe(CC1101_SWORRST); // reset real time clock
#if defined(CC_DBG)
Serial << F(" - ready\n");
#endif
}
boolean CC::sendData(uint8_t *buf, uint8_t burst) { // send data packet via RF
// Going from RX to TX does not work if there was a reception less than 0.5
// sec ago. Due to CCA? Using IDLE helps to shorten this period(?)
//ccStrobe(CC1100_SIDLE);
//uint8_t cnt = 0xff;
//while(cnt-- && (ccStrobe( CC1100_STX ) & 0x70) != 2)
//my_delay_us(10);
cmdStrobe(CC1101_SIDLE); // go to idle mode
cmdStrobe(CC1101_SFRX ); // flush RX buffer
cmdStrobe(CC1101_SFTX ); // flush TX buffer
//Serial << "tx\n";
if (burst) { // BURST-bit set?
cmdStrobe(CC1101_STX ); // send a burst
delay(360); // according to ELV, devices get activated every 300ms, so send burst for 360ms
//Serial << "send burst\n";
} else {
delay(1); // wait a short time to set TX mode
}
writeBurst(CC1101_TXFIFO, buf, buf[0]+1); // write in TX FIFO
cmdStrobe(CC1101_SFRX); // flush the RX buffer
cmdStrobe(CC1101_STX); // send a burst
for(uint8_t i=0; i< 200;++i) { // after sending out all bytes the chip should go automatically in RX mode
if( readReg(CC1101_MARcurStatTE, CC1101_STATUS) == MARcurStatTE_RX)
break; //now in RX mode, good
if( readReg(CC1101_MARcurStatTE, CC1101_STATUS) != MARcurStatTE_TX) {
break; //neither in RX nor TX, probably some error
}
delayMicroseconds(10);
}
//uint8_t cnt = 0xff;
//while(cnt-- && (sendSPI(CC1101_SRX) & 0x70) != 1)
//delayMicroseconds(10);
#if defined(CC_DBG) // some debug message
Serial << F("<- ") << pHexL(&buf[0], buf[0]+1) << pTime();
#endif
//Serial << "rx\n";
return true;
}
uint8_t CC::receiveData(uint8_t *buf) { // read data packet from RX FIFO
uint8_t rxBytes = readReg(CC1101_RXBYTES, CC1101_STATUS); // how many bytes are in the buffer
if (rxBytes & 0x7F && !(rxBytes & 0x80)) { // any byte waiting to be read and no overflow?
buf[0] = readReg(CC1101_RXFIFO, CC1101_CONFIG); // read data length
if (buf[0] > CC1101_DATA_LEN) // if packet is too long
buf[0] = 0; // discard packet
else {
readBurst(&buf[1], CC1101_RXFIFO, buf[0]); // read data packet
readReg(CC1101_RXFIFO, CC1101_CONFIG); // read RSSI
uint8_t val = readReg(CC1101_RXFIFO, CC1101_CONFIG); // read LQI and CRC_OK
trx868.lqi = val & 0x7F;
trx868.crc_ok = bitRead(val, 7);
}
} else buf[0] = 0; // nothing to do, or overflow
cmdStrobe(CC1101_SFRX); // flush Rx FIFO
cmdStrobe(CC1101_SIDLE); // enter IDLE state
cmdStrobe(CC1101_SRX); // back to RX state
cmdStrobe(CC1101_SWORRST); // reset real time clock
// trx868.rfState = RFSTATE_RX; // declare to be in Rx state
#if defined(CC_DBG) // debug message, string should be short, otherwise program stops
if (buf[0] > 0) Serial << pHexL(&buf[1], buf[0]) << pTime();
#endif
return buf[0]; // return the data buffer
}
uint8_t CC::detectBurst(void) { // wake up CC1101 from power down state
// 10 7/10 5 in front of the received string; 33 after received string
// 10 - 00001010 - sync word found
// 7 - 00000111 - GDO0 = 1, GDO2 = 1
// 5 - 00000101 - GDO0 = 1, GDO2 = 1
// 33 - 00100001 - GDO0 = 1, preamble quality reached
// 96 - 01100000 - burst sent
// 48 - 00110000 - in receive mode
//
// Status byte table:
// 0 current GDO0 value
// 1 reserved
// 2 GDO2
// 3 sync word found
// 4 channel is clear
// 5 preamble quality reached
// 6 carrier sense
// 7 CRC ok
//
// possible solution for finding a burst is to check for bit 6, carrier sense
// set RXTX module in receive mode
cc1101_Select(); // select CC1101
wait_Miso(); // wait until MISO goes low
cc1101_Deselect(); // deselect CC1101
cmdStrobe(CC1101_SRX); // set RX mode again
delay(3); // wait a short time to set RX mode
// todo: check carrier sense for 5ms to avoid wakeup due to normal transmition
//Serial << "rx\n";
return bitRead(hm.cc.monitorStatus(),6); // return the detected signal
}
void CC::setPowerDownxtStatte() { // put CC1101 into power-down state
cmdStrobe(CC1101_SIDLE); // coming from RX state, we need to enter the IDLE state first
cmdStrobe(CC1101_SFRX);
cmdStrobe(CC1101_SPWD); // enter power down state
//Serial << "pd\n";
}
uint8_t CC::monitorStatus() {
return readReg(CC1101_PKTSTATUS, CC1101_STATUS);
}
uint8_t CC::sendSPI(uint8_t val) { // send byte via SPI
SPDR = val; // transfer byte via SPI
while(!(SPSR & _BV(SPIF))); // wait until SPI operation is terminated
return SPDR;
}
void CC::cmdStrobe(uint8_t cmd) { // send command strobe to the CC1101 IC via SPI
cc1101_Select(); // select CC1101
wait_Miso(); // wait until MISO goes low
sendSPI(cmd); // send strobe command
cc1101_Deselect(); // deselect CC1101
}
void CC::writeBurst(uint8_t regAddr, uint8_t *buf, uint8_t len) { // write multiple registers into the CC1101 IC via SPI
cc1101_Select(); // select CC1101
wait_Miso(); // wait until MISO goes low
sendSPI(regAddr | WRITE_BURST); // send register address
for(uint8_t i=0 ; i<len ; i++) sendSPI(buf[i]); // send value
cc1101_Deselect(); // deselect CC1101
}
void CC::readBurst(uint8_t *buf, uint8_t regAddr, uint8_t len) { // read burst data from CC1101 via SPI
cc1101_Select(); // select CC1101
wait_Miso(); // wait until MISO goes low
sendSPI(regAddr | READ_BURST); // send register address
for(uint8_t i=0 ; i<len ; i++) buf[i] = sendSPI(0x00); // read result byte by byte
cc1101_Deselect(); // deselect CC1101
}
uint8_t CC::readReg(uint8_t regAddr, uint8_t regType) { // read CC1101 register via SPI
cc1101_Select(); // select CC1101
wait_Miso(); // wait until MISO goes low
sendSPI(regAddr | regType); // send register address
uint8_t val = sendSPI(0x00); // read result
cc1101_Deselect(); // deselect CC1101
return val;
}
void CC::writeReg(uint8_t regAddr, uint8_t val) { // write single register into the CC1101 IC via SPI
cc1101_Select(); // select CC1101
wait_Miso(); // wait until MISO goes low
sendSPI(regAddr); // send register address
sendSPI(val); // send value
cc1101_Deselect(); // deselect CC1101
}
//- -----------------------------------------------------------------------------------------------------------------------
//- status led functions --------------------------------------------------------------------------------------------------
//- -----------------------------------------------------------------------------------------------------------------------
void LD::config(uint8_t tPin) {
pin = tPin;
pinMode(tPin, OUTPUT); // setting the pin to output mode
}
void LD::poll() {
if ((nTime == 0) || (nTime > millis())) return; // nothing to do or wrong time to do
if (mode == 0) { // led off
off();
nTime = 0;
} else if (mode == 1) { // led on
on();
nTime = 0;
} else if (mode == 2) { // blink slow
toggle();
nTime = millis() + slowRate;
} else if (mode == 3) { // blink fast
toggle();
nTime = millis() + fastRate;
} else if (mode == 4) { // blink short one
if (!bCnt++) {
on();
nTime = millis() + fastRate;
} else set(0);
} else if (mode == 5) { // blink short three
if (bCnt++ >= 5) set(0);
toggle();
nTime = millis() + fastRate;
} else if (mode == 6) { // heartbeat
if (bCnt > 3) bCnt = 0;
toggle();
nTime = millis() + heartBeat[bCnt++];
}
}
void LD::set(uint8_t tMode) {
mode = tMode;
bCnt = 0;
nTime = millis();
}
void LD::stop() {
digitalWrite(pin,0); // switch led off
mode = 0;
bCnt = 0;
nTime = 0;
state = 0;
}
void LD::shortBlink() {
on();
delay(50);
off();
delay(50);
}
void LD::shortBlink3() {
shortBlink();
shortBlink();
shortBlink();
}
void LD::on() {
digitalWrite(pin,1); // switch led on
state = 1;
}
void LD::off() {
digitalWrite(pin,0); // switch led off
state = 0;
}
void LD::toggle() {
if (state) off();
else on();
}
//- -----------------------------------------------------------------------------------------------------------------------
//- AskSin protocol functions ---------------------------------------------------------------------------------------------
//- with a lot of support from martin876 at FHEM forum
//- -----------------------------------------------------------------------------------------------------------------------
// general functions for initializing and operating of module
HM::HM(s_jumptable *jtPtr, void *mcPtr) {
jTblPtr = jtPtr; // jump table for call back functions
mcConfPtr = (uint16_t)mcPtr; // store pointer to main channel structure
}
void HM::init() { // starts also the send/receive class for the rf module
cc.init(); // init the TRX module
initRegisters(); // init the storage management module
setPowerMode(0); // set default power mode of HM device
delay(100); // otherwise we get a problem with serial console
enableIRQ_GDO0(); // attach callback function for GDO0 (INT0)
}
void HM::poll() { // task scheduler
if (recv.data[0] > 0) recv_poll(); // trace the received string and decide what to do further
if (send.counter > 0) send_poll(); // something to send in the buffer?
if (conf.act > 0) send_conf_poll(); // some config to be send out
if (pevt.act > 0) send_peer_poll(); // send peer events
power_poll();
ld.poll();
}
void HM::send_out() {
if (bitRead(send.data[2],5)) send.retries = maxRetries; // check for ACK request and set max retries counter
else send.retries = 1; // otherwise send only one time
send.burst = bitRead(send.data[2],4); // burst necessary?
if (memcmp(&send.data[7], HMID, 3) == 0) { // if the message is addressed to us,
memcpy(recv.data,send.data,send.data[0]+1); // then copy in receive buffer. could be the case while sending from serial console
}
send.counter = 1;
/*
send.counter = 0; // no need to fire
} else { // it's not for us, so encode and put in send queue
send.counter = 1; // and fire
}*/
}
void HM::reset(void) {
setEEpromBlock((uint16_t)&ee->magNbr,2,(uint8_t*) &broadCast); // clear magic byte in eeprom and step in initRegisters
initRegisters(); // reload the registers
ld.stop(); // stop blinking
ld.shortBlink3(); // blink three times short
}
void HM::setConfigEvent(void) {
s_jumptable x;
for (s_jumptable* p = jTblPtr; ; ++p) { // find the call back function
x.code = pgm_read_byte(&p->code); // get back variables, because they are in program memory
x.spec = pgm_read_byte(&p->spec);
x.fun = (void (*)(uint8_t, uint8_t*, uint8_t))pgm_read_word(&p->fun);
if ((x.code == 0xFF) && (x.spec == 0xFF)) {
x.fun(0,(uint8_t*) &broadCast,0);
break; // and jump into
}
}
}
void HM::setPowerMode(uint8_t mode) {
// there are 3 power modes for the TRX868 module
// TX mode will switched on while something is in the send queue
// 0 - RX mode enabled by default, take approx 17ma
// 1 - RX is in burst mode, RX will be switched on every 250ms to check if there is a carrier signal
// if yes - RX will stay enabled until timeout is reached, prolongation of timeout via receive function seems not necessary
// to be able to receive an ACK, RX mode should be switched on by send function
// if no - RX will go in idle mode and wait for the next carrier sense check
// 2 - RX is off by default, TX mode is enabled while sending something
// configuration mode is required in this setup to be able to receive at least pairing and config request strings
// should be realized by a 30 sec timeout function for RX mode
// as output we need a status indication if TRX868 module is in receive, send or idle mode
// idle mode is then the indication for power down mode of AVR
switch (mode) {
case 1: // no power savings, RX is in receiving mode
powr.mode = 1; // set power mode
set_sleep_mode(SLEEP_MODE_IDLE); // normal power saving
break;
case 2: // some power savings, RX is in burst mode
powr.mode = 2; // set power mode
powr.parTO = 15000; // pairing timeout
powr.minTO = 2000; // stay awake for 2 seconds after sending
powr.nxtTO = millis() + 250; // check in 250ms for a burst signal
MCUSR &= ~(1<<WDRF); // clear the reset flag
WDTCSR |= (1<<WDCE) | (1<<WDE); // set control register to change enabled and enable the watch dog
WDTCSR = 1<<WDP2; // 250 ms
powr.wdTme = 256; // store the watch dog time for adding in the poll function
set_sleep_mode(SLEEP_MODE_PWR_DOWN); // max power saving
break;
case 3: // most power savings, RX is off beside a special function where RX stay in receive for 30 sec
MCUSR &= ~(1<<WDRF); // clear the reset flag
WDTCSR |= (1<<WDCE) | (1<<WDE); // set control register to change enabled and enable the watch dog
//WDTCSR = 1<<WDP2; // 250 ms
//WDTCSR = 1<<WDP1 | 1<<WDP2; // 1000 ms
//WDTCSR = 1<<WDP0 | 1<<WDP1 | 1<<WDP2; // 2000 ms
WDTCSR = 1<<WDP0 | 1<<WDP3; // 8000 ms
powr.wdTme = 8190; // store the watch dog time for adding in the poll function
case 4: // most power savings, RX is off beside a special function where RX stay in receive for 30 sec
powr.mode = mode; // set power mode
powr.parTO = 15000; // pairing timeout
powr.minTO = 1000; // stay awake for 1 seconds after sending
powr.nxtTO = millis() + 4000; // stay 4 seconds awake to finish boot time
set_sleep_mode(SLEEP_MODE_PWR_DOWN); // max power saving
ld.set(2); // blink the led to show it is awake
break;
default: // no power saving, same as case 0, if user had chosen a wrong power saving mode
powr.mode = 0; // set power mode
}
powr.state = 1; // after init of the TRX module it is in RX mode
//Serial << "pwr.mode:" << powr.mode << '\n';
}
void HM::stayAwake(uint32_t xMillis) {
if (powr.state == 0) cc.detectBurst(); // if TRX is in sleep, switch it on
powr.state = 1; // remember TRX state
powr.nxtTO = millis() + xMillis; // stay awake for some time by setting next check time
}
// external functions for pairing and communicating with the module
void HM::startPairing(void) { // send a pairing request to master
// 01 02 03 04 05 06 07
// 1A 00 A2 00 3F A6 5C 00 00 00 10 80 02 50 53 30 30 30 30 30 30 30 31 9F 04 01 01
if (powr.mode > 1) stayAwake(powr.parTO); // stay awake for the next 30 seconds
memcpy_P(send_payLoad, devParam, 17); // copy details out of register.h
send_prep(send.mCnt++,0xA2,0x00,regDev.pairCentral,send_payLoad,17);
}
void HM::sendInfoActuatorStatus(uint8_t cnl, uint8_t status, uint8_t flag) {
if (memcmp(regDev.pairCentral,broadCast,3) == 0) return; // not paired, nothing to send
// "10;p01=06" => { txt => "INFO_ACTUATOR_STATUS", params => {
// CHANNEL => "2,2",
// STATUS => '4,2',
// UNKNOWN => "6,2",
// RSSI => '08,02,$val=(-1)*(hex($val))' } },
send_payLoad[0] = 0x06; // INFO_ACTUATOR_STATUS
send_payLoad[1] = cnl; // channel
send_payLoad[2] = status; // status
send_payLoad[3] = flag; // unknown
send_payLoad[4] = cc.trx868.rssi; // RSSI
// if it is an answer to a CONFIG_STATUS_REQUEST we have to use the same message id as the request
uint8_t tCnt;
if ((recv.data[3] == 0x01) && (recv.data[11] == 0x0E)) tCnt = recv_rCnt;
else tCnt = send.mCnt++;
send_prep(tCnt,0xA4,0x10,regDev.pairCentral,send_payLoad,5); // prepare the message
}
void HM::sendACKStatus(uint8_t cnl, uint8_t status, uint8_t douolo) {
//if (memcmp(regDev.pairCentral,broadCast,3) == 0) return; // not paired, nothing to send
// "02;p01=01" => { txt => "ACK_STATUS", params => {
// CHANNEL => "02,2",
// STATUS => "04,2",
// DOWN => '06,02,$val=(hex($val)&0x20)?1:0',
// UP => '06,02,$val=(hex($val)&0x10)?1:0',
// LOWBAT => '06,02,$val=(hex($val)&0x80)?1:0',
// RSSI => '08,02,$val=(-1)*(hex($val))', }},
send_payLoad[0] = 0x01; // ACK Status
send_payLoad[1] = cnl; // channel
send_payLoad[2] = status; // status
send_payLoad[3] = douolo; // down, up, low battery
send_payLoad[4] = cc.trx868.rssi; // RSSI
// l> 0E EA 80 02 1F B7 4A 63 19 63 01 01 C8 00 4B
//send_prep(recv_rCnt,0x80,0x02,regDev.pairCentral,send_payLoad,5); // prepare the message
send_prep(recv_rCnt,0x80,0x02,recv_reID,send_payLoad,5); // prepare the message
}
void HM::sendSensorData(uint32_t energyCounter, uint32_t power, uint16_t current, uint16_t voltage, uint8_t frequency) {
if (memcmp(regDev.pairCentral,broadCast,3) == 0) return; // not paired, nothing to send
// energy counter 3 Bytes
// power: 3 Bytes
// current: 2 Bytes
// voltage: 2 Bytes
// frequency: 1 Byte
send_payLoad[0] = energyCounter >> 16;
send_payLoad[1] = energyCounter >> 8;
send_payLoad[2] = energyCounter;
send_payLoad[3] = power >> 16;
send_payLoad[4] = power >> 8;
send_payLoad[5] = power;
send_payLoad[6] = current >> 8;
send_payLoad[7] = current;
send_payLoad[8] = voltage >> 8;
send_payLoad[9] = voltage;
send_payLoad[10] = frequency;
send_prep(send.mCnt++,0x80,0x5E,regDev.pairCentral,send_payLoad,11); // prepare the message // short led blink
}
void HM::sendPeerREMOTE(uint8_t button, uint8_t longPress, uint8_t lowBat) {
// no data needed, because it is a (40)REMOTE EVENT
// "40" => { txt => "REMOTE" , params => {
// BUTTON => '00,2,$val=(hex($val)&0x3F)',
// LONG => '00,2,$val=(hex($val)&0x40)?1:0',
// LOWBAT => '00,2,$val=(hex($val)&0x80)?1:0',
// COUNTER => "02,2", } },
if (button > maxChannel) return; // channel out of range, do nothing
if (doesListExist(button,4) == 0) { // check if a list4 exist, otherwise leave
//Serial << "sendPeerREMOTE failed\n";
return;
}
// set variables in struct and make send_peer_poll active
pevt.cnl = button; // peer database channel
pevt.type = 0x40; // message type
pevt.mFlg = (uint8_t)((longPress == 1)?0x80:0xA0); // no ACK needed while long key press is send
pevt.data[0] = button | ((longPress)?1:0) << 6 | lowBat << 7; // construct message
pevt.data[1] = pevt.mCnt[pevt.cnl-1];
pevt.len = 2; // 2 bytes payload
pevt.act = 1; // active, 1 = yes, 0 = no
ld.shortBlink(); // short led blink
if (longPress != 1) {
++pevt.mCnt[pevt.cnl-1]; // increase event counter except for long press (until long press end)
}
}
void HM::sendPeerRAW(uint8_t cnl, uint8_t type, uint8_t *data, uint8_t len) {
// validate the input, and fill the respective variables in the struct
// message handling is taken from send_peer_poll
if (cnl > maxChannel) return; // channel out of range, do nothing
if (pevt.act) return; // already sending an event, leave
if (doesListExist(cnl,4) == 0) { // check if a list4 exist, otherwise leave
//Serial << "sendPeerREMOTE failed\n";
return;
}
// set variables in struct and make send_peer_poll active
pevt.cnl = cnl; // peer database channel
pevt.type = type; // message type
pevt.mFlg = 0xA2;
if (len > 0) { // copy data if there are some
memcpy(pevt.data, data, len); // data to send
pevt.len = len; // len of data to send
}
pevt.act = 1; // active, 1 = yes, 0 = no
ld.shortBlink(); // short led blink
}
void HM::send_ACK(void) {
uint8_t payLoad[] = {0x00}; // ACK
send_prep(recv_rCnt,0x80,0x02,recv_reID,payLoad,1);
}
void HM::send_NACK(void) {
uint8_t payLoad[] = {0x80}; // NACK
send_prep(recv_rCnt,0x80,0x02,recv_reID,payLoad,1);
}
#if defined(USE_SERIAL)
// some debug functions
void HM::printSettings() {
Serial << F("Serial: ");
for (int i = 0; i < 10; i++) { // serial number has 10 bytes
Serial << (char)pgm_read_byte(&(devParam[i+3])); // get the serial number from program space
}
Serial << F(", Model ID: ");
for (int i = 0; i < 2; i++) { // model id has 2 bytes
Serial << pHex(pgm_read_byte(&(devParam[i+1]))) << ' '; // get the model id from program space
}
Serial << F(", HMID: ") << pHex(HMID,3) << '\n'; // displays the own id
Serial << F("Paired: ") << pHex(regDev.pairCentral,3) << F("\n\n"); // pairing id
}
void HM::printConfig() {
s_slcVar sV; // size some variables
uint8_t peer[] = {0xff,0xff,0xff,0x00,0x00,0x00,0x00,0x00};
// show device config
Serial << F("\nDevice config, size: ") << sizeof(ee) << F(" byte\n");
Serial << F("cnl\tlst\tslcPtr\tslcEnd\tphyAddr\tphyLen\n");
for (uint8_t i = 0; i < 20; i++) { // count through the channel
for (uint8_t j = 0; j < 20; j++) { // count through the lists
if (!getSliceDetail(i, j, &peer[0], &sV)) continue; // get the slice details
Serial << i << '\t' << j << '\t' << sV.slcPtr << '\t' << sV.slcLen << '\t' << sV.phyAddr << '\t' << sV.phyLen << '\n';
}
}
// step through the complete channel list
Serial << F("\nPeer Database, size: ") << sizeof(peerdb) << F(" byte\n"); // some headline
Serial << F("cnl\tpIdx\tslcPtr\tslcEnd\tphyAddr\tphyLen\tlist\tpeer\n");
for (uint8_t i = 0; i < 20; i++) { // step through all channels
// check if we have a list3 or list4
uint8_t lst = 0;
if (doesListExist(i+1, 3)) lst = 3; // check for list3
if (doesListExist(i+1, 4)) lst = 4; // check for list4
if (lst == 0) continue; // no list3 or list4 therefore next i
// step through the peers
for (uint8_t j = 0; j < 20; j++) { // step through all possible peers
if (!getPeerByIdx(i+1,j,&peer[4])) continue; // ask for the peer by channel and peer index
peer[3] = j; // store the peer channel byte
if (!getSliceDetail(i+1, lst, &peer[0], &sV)) continue; // ask for the slice details as list3
Serial << (i+1) << '\t' << (j) << '\t' << sV.slcPtr << '\t' << sV.slcLen << '\t' << sV.phyAddr << '\t' << sV.phyLen << '\t' << lst << '\t'; // print the slice details
Serial << pHex(&peer[4],4) << '\n'; // and print the peer incl peer channel
}
}
Serial << '\n';
}
#endif
//- private: //------------------------------------------------------------------------------------------------------------
// hardware definition for interrupt handling
void HM::isrGDO0event(void) {
disableIRQ_GDO0(); // disable interrupt otherwise we could get some new content while we copy the buffer
if (hm.cc.receiveData(hm.recv.data)) { // is something in the receive string
hm.hm_dec(hm.recv.data); // decode the content
}
enableIRQ_GDO0(); // enable the interrupt again
}
// some polling functions
void HM::recv_poll(void) { // handles the receive objects
// do some checkups
if (memcmp(&recv.data[7], HMID, 3) == 0) recv.forUs = 1; // for us
else recv.forUs = 0;
if (memcmp(&recv.data[7], broadCast, 3) == 0) recv.bCast = 1; // or a broadcast
else recv.bCast = 0; // otherwise only a log message
// show debug message
#if defined(AS_DBG) // some debug message
if(recv.forUs) Serial << F("-> ");
else if(recv.bCast) Serial << F("b> ");
else Serial << F("l> ");
Serial << pHexL(recv.data, recv.data[0]+1) << pTime();
exMsg(recv.data); // explain message
#endif
// is the message from a valid sender (pair or peer), if not then exit - takes ~2ms
if ((isPairKnown(recv_reID) == 0) && (isPeerKnown(recv_reID) == 0)) { // check against peers
#if defined(AS_DBG) // some debug message
//Serial << "pair/peer did not fit, exit\n";
#endif
recv.data[0] = 0; // clear receive string
return;
}
// check if it was a repeated message, delete while already received - takes ~2ms
if (bitRead(recv.data[2],6)) { // check repeated flag
bitSet(recv.p_data[2],6); // set repeated flag in prev received string
uint16_t ret = memcmp(recv.p_data,recv.data,recv.data[0]+1); // compare with already received string
#if defined(AS_DBG) // some debug message
Serial << F(" repeated message; ");
if (ret == 0) Serial << F("already received - skip\n");
else Serial << F("not received before...\n");
#endif
if (ret == 0) { // already received
recv.data[0] = 0; // therefore ignore
return; // and skip
}
}
memcpy(recv.p_data,recv.data,recv.data[0]+1); // save received string for next compare
// decide where to jump in
if((recv.forUs) && (recv_isMsg) && (recv_msgTp == 0x01)) { // message is a config message
if (recv_by11 == 0x01) recv_ConfigPeerAdd(); // 01, 01
else if (recv_by11 == 0x02) recv_ConfigPeerRemove(); // 01, 02
else if (recv_by11 == 0x03) recv_ConfigPeerListReq(); // 01, 03
else if (recv_by11 == 0x04) recv_ConfigParamReq(); // 01, 04
else if (recv_by11 == 0x05) recv_ConfigStart(); // 01, 05
else if (recv_by11 == 0x06) recv_ConfigEnd(); // 01, 06
else if (recv_by11 == 0x08) recv_ConfigWriteIndex(); // 01, 08
else if (recv_by11 == 0x09) recv_ConfigSerialReq(); // 01, 09
else if (recv_by11 == 0x0A) recv_Pair_Serial(); // 01, 0A
else if (recv_by11 == 0x0E) recv_ConfigStatusReq(); // 01, 0E
#if defined(AS_DBG) // some debug message
else Serial << F("\nUNKNOWN MESSAGE, PLEASE REPORT!\n\n");
#endif
}
// l> 0A 73 80 02 63 19 63 2F B7 4A 00
if((recv.forUs) && (recv_isMsg) && (recv_msgTp == 0x02)) { // message seems to be an ACK
send.counter = 0;
}
if((recv.forUs) && (recv_isMsg) && (recv_msgTp == 0x11)) {
recv_PairEvent();
}
if((recv.forUs) && (recv.data[2] == 0x30) && (recv_msgTp == 0x11)) {
recv_UpdateEvent();
}
if((recv.forUs) && (recv_isMsg) && (recv_msgTp >= 0x12)) {
recv_PeerEvent();
}
//to do: if it is a broadcast message, do something with
recv.data[0] = 0; // otherwise ignore
}
void HM::send_poll(void) { // handles the send queue
if((send.counter <= send.retries) && (send.timer <= millis())) { // not all sends done and timing is OK
// here we encode and send the string
hm_enc(send.data); // encode the string
disableIRQ_GDO0(); // disable interrupt otherwise we could get some new content while we copy the buffer
cc.sendData(send.data,send.burst); // and send
enableIRQ_GDO0(); // enable the interrupt again
hm_dec(send.data); // decode the string
// setting some variables
send.counter++; // increase send counter
send.timer = millis() + timeOut; // set the timer for next action
powr.state = 1; // remember TRX module status, after sending it is always in RX mode
if ((powr.mode > 0) && (powr.nxtTO < (millis() + powr.minTO))) stayAwake(powr.minTO); // stay awake for some time
#if defined(AS_DBG) // some debug messages
Serial << F("<- ") << pHexL(send.data, send.data[0]+1) << pTime();
#endif
}
if((send.counter > send.retries) && (send.counter < maxRetries)) { // all send but don't wait for an ACK
send.counter = 0; send.timer = 0; // clear send flag
}
if((send.counter > send.retries) && (send.timer <= millis())) { // max retries achieved, but seems to have no answer
send.counter = 0; send.timer = 0; // cleanup of send buffer
// todo: error handling, here we could jump some were to blink a led or whatever
#if defined(AS_DBG)
Serial << F("-> NA ") << pTime();
#endif
}
} // ready, should work
void HM::send_conf_poll(void) {
if (send.counter > 0) return; // send queue is busy, let's wait
uint8_t len;
if (conf.type == 0x01) {
// answer Cnl Peer Peer Peer Peer
// l> 1A 05 A0 10 1E 7A AD 63 19 63 01 1F A6 5C 02 1F A6 5C 01 11 22 33 02 11 22 33 01
// Cnl Termination
// l> 0E 06 A0 10 1E 7A AD 63 19 63 01 00 00 00 00
len = getPeerListForMsg(conf.channel, send_payLoad+1); // get peer list
if (len == 0x00) { // check if all done
memset(&conf, 0, sizeof(conf)); // clear the channel struct
return; // exit
} else if (len == 0xff) { // failure, out of range
memset(&conf, 0, sizeof(conf)); // clear the channel struct
send_NACK();
} else { // seems to be ok, answer
send_payLoad[0] = 0x01; // INFO_PEER_LIST
send_prep(conf.mCnt++,0xA0,0x10,conf.reID,send_payLoad,len+1); // prepare the message
//send_prep(send.mCnt++,0xA0,0x10,conf.reID,send_payLoad,len+1); // prepare the message
}
} else if (conf.type == 0x02) {
// INFO_PARAM_RESPONSE_PAIRS message
// RegL_01: 30:06 32:50 34:4B 35:50 56:00 57:24 58:01 59:01 00:00
// l> 1A 04 A0 10 1E 7A AD 63 19 63 02 30 06 32 50 34 4B 35 50 56 00 57 24 58 01 59 01 (l:27)(131405)
//Serial << "hab dich\n";
len = getListForMsg2(conf.channel, conf.list, conf.peer, send_payLoad+1); // get the message
if (len == 0) { // check if all done
memset(&conf, 0, sizeof(conf)); // clear the channel struct
return; // and exit
} else if (len == 0xff) { // failure, out of range
memset(&conf, 0, sizeof(conf)); // clear the channel struct
send_NACK();
} else { // seems to be ok, answer
send_payLoad[0] = 0x02; // INFO_PARAM_RESPONSE_PAIRS
send_prep(conf.mCnt++,0xA0,0x10,conf.reID,send_payLoad,len+1); // prepare the message
//send_prep(send.mCnt++,0xA0,0x10,conf.reID,send_payLoad,len+1); // prepare the message
}
} else if (conf.type == 0x03) {
// INFO_PARAM_RESPONSE_SEQ message
// RegL_01: 30:06 32:50 34:4B 35:50 56:00 57:24 58:01 59:01 00:00
// l> 1A 04 A0 10 1E 7A AD 63 19 63 02 30 06 32 50 34 4B 35 50 56 00 57 24 58 01 59 01 (l:27)(131405)
}
}
void HM::send_peer_poll(void) {
// go through the peer database and get the idx per slot, load the respective list4
// if no peer exist in the respective channel then send to master
// send out the message accordingly, loop until send_poll is clear and start the next peer.
// if the message was a long key press, then prepare the struct for sending out a last message
// with ACK requested
if (send.counter > 0) return; // something is in the send queue, lets wait for the next free slot
// we are in a loop, therefore check if the request is completed and clear struct
if (pevt.idx >= peermax[pevt.cnl-1]) { // we are through the list of peers, clear variables
// check if a message was send to at least on device, if not send to master
if (pevt.sta == 0) send_prep(send.mCnt++,(bitRead(pevt.mFlg,5)?0xA2:0x82),pevt.type,regDev.pairCentral,pevt.data,pevt.len);
pevt.idx = 0; pevt.sta = 0; pevt.act = 0; // clear struct object, no need to jump in again
return;
}
// prepare the next peer address
//Serial << "cnl: " << pevt.cnl << ", idx: " << pevt.idx << '\n';
uint8_t peerBuf[4];
uint8_t ret = getPeerByIdx(pevt.cnl,pevt.idx,peerBuf); // get the respective peer from database
if ((memcmp(peerBuf,broadCast,4) == 0) || (ret == 0)) { // if peer is empty, increase the idx and leave while we are in a loop
pevt.idx++;
return;
}
// get the respective list4
s_slcVar sV; // some declarations
uint8_t regLstByte = 0;
ret = getSliceDetail(pevt.cnl, 4, peerBuf, &sV); // get cnl list4
if (ret) {
// at the moment we are looking only for register address 1 in list 4 (peerNeedsBurst, expectAES), list 4 will not be available in user space
uint8_t tLst[sV.phyLen]; // size a variable
ret = getRegList(sV.slcPtr, sV.slcLen, tLst); // get the register in the variable
void *x = memchr(tLst, 0x01, sV.phyLen); // search the character in the address string
if ((uint16_t)x) { // if we found the searched string
uint16_t dataPtr = (uint16_t)x-(uint16_t)tLst; // calculate the respective address in list
regLstByte = getEEpromByte(dataPtr+(uint16_t)&ee->regs+sV.phyAddr); // get the respective byte
//Serial << "get byte: " << pHex(regLstByte) << '\n';
//Serial << "dataPtr:" << dataPtr << ", phyAddr:" << sV.phyAddr << ", eepromAddr:" << (uint16_t)&sEEPROM->regs << '\n';
}
//Serial << "peer: " << pHex(peerBuf,4) << ", tLst: " << pHex(tLst,sV.phyLen) << ", rB: " << regLstByte << '\n';
}
// in regLstByte there are two information. peer needs AES and burst needed
// AES will be ignored at the moment, but burst needed will be translated into the message flag - bit 0 in regLstByte, translated to bit 4 = burst transmission in msgFlag
uint8_t mFlg = pevt.mFlg; // copy the message flag
mFlg |= bitRead(regLstByte,0) << 4; // read the need burst flag
// prepare send string and increase timer
send_prep(send.mCnt++,mFlg,pevt.type,peerBuf,pevt.data,pevt.len); // prepare the message
pevt.sta = 1; // indicates that we had found a peer and string was send
pevt.idx++; // increase idx for next try
}
void HM::power_poll(void) {
// there are 3 power modes for the TRX868 module
// TX mode will switched on while something is in the send queue
// 1 - RX mode enabled by default, take approx 17ma
// 2 - RX is in burst mode, RX will be switched on every 250ms to check if there is a carrier signal
// if yes - RX will stay enabled until timeout is reached, prolongation of timeout via receive function seems not necessary
// to be able to receive an ACK, RX mode should be switched on by send function
// if no - RX will go in idle mode and wait for the next carrier sense check
// 3 - RX is off by default, TX mode is enabled while sending something
// configuration mode is required in this setup to be able to receive at least pairing and config request strings
// should be realized by a 15 sec timeout function for RX mode
// system time in millis will be hold by a regular wakeup from the watchdog timer
// 4 - Same as power mode 3 but without watchdog
if (powr.mode == 0) return; // in mode 0 there is nothing to do
if (powr.nxtTO > millis()) return; // no need to do anything
if (send.counter > 0) return; // send queue not empty
// power mode 2, module is in sleep and next check is reached
if ((powr.mode == 2) && (powr.state == 0)) {
if (cc.detectBurst()) { // check for a burst signal, if we have one, we should stay awake
powr.nxtTO = millis() + powr.minTO; // schedule next timeout with some delay
} else { // no burst was detected, go to sleep in next cycle
powr.nxtTO = millis(); // set timer accordingly
}
powr.state = 1; // set status to awake
return;
}
// power mode 2, module is active and next check is reached
if ((powr.mode == 2) && (powr.state == 1)) {
cc.setPowerDownxtStatte(); // go to sleep
powr.state = 0;
powr.nxtTO = millis() + 250; // schedule next check in 250 ms
}
// power mode 3, check RX mode against timer. typically RX is off beside a special command to switch RX on for at least 30 seconds
if ((powr.mode >= 3) && (powr.state == 1)) {
cc.setPowerDownxtStatte(); // go to sleep
powr.state = 0;
}
// sleep for mode 2, 3 and 4
if ((powr.mode > 1) && (powr.state == 0)) { // TRX module is off, so lets sleep for a while
ld.stop(); // stop blinking, because we are going to sleep
if ((powr.mode == 2) || (powr.mode == 3)) WDTCSR |= (1<<WDIE); // enable watch dog if power mode 2 or 3
ADCSRA = 0; // disable ADC
uint8_t xPrr = PRR; // turn off various modules
PRR = 0xFF;
sleep_enable(); // enable the sleep mode
// MCUCR |= (1<<BODS) | (1<<BODSE); // turn off brown-out enable in software
// MCUCR &= ~(1<<BODSE); // must be done right before sleep
sleep_cpu(); // goto sleep
/* wake up here */
sleep_disable(); // disable sleep
if ((powr.mode == 2) || (powr.mode == 3)) WDTCSR &= ~(1<<WDIE); // disable watch dog
PRR = xPrr; // restore modules
if (wd_flag == 1) { // add the watchdog time to millis()
wd_flag = 0; // to detect the next watch dog timeout
timer0_millis += powr.wdTme; // add watchdog time to millis() function
} else {
stayAwake(powr.minTO); // stay awake for some time, if the wakeup where not raised from watchdog
}
ld.set(2); // blink the led to show it is awake
}
}
// receive message handling
void HM::recv_ConfigPeerAdd(void) {
// description --------------------------------------------------------
// Cnl PeerID PeerCnl_A PeerCnl_B
// l> 10 55 A0 01 63 19 63 1E 7A AD 03 01 1F A6 5C 06 05
// do something with the information ----------------------------------
addPeerFromMsg(recv_payLoad[0], recv_payLoad+2);
// send appropriate answer ---------------------------------------------
// l> 0A 55 80 02 1E 7A AD 63 19 63 00
if (recv_ackRq) send_ACK(); // send ACK if requested
//if ((recv_ackRq) && (ret == 1)) send_ACK();
//else if (recv_ackRq) send_NACK();
}
void HM::recv_ConfigPeerRemove(void) {
// description --------------------------------------------------------
// Cnl PeerID PeerCnl_A PeerCnl_B
// l> 10 55 A0 01 63 19 63 1E 7A AD 03 02 1F A6 5C 06 05
// do something with the information ----------------------------------
removePeerFromMsg(recv_payLoad[0], recv_payLoad+2);
// send appropriate answer ---------------------------------------------
// l> 0A 55 80 02 1E 7A AD 63 19 63 00
if (recv_ackRq) send_ACK();
//if ((recv_ackRq) && (ret == 1)) send_ACK(); // send ACK if requested
//else if (recv_ackRq) send_NACK();