uint8_t receiveSingleFrame() {
uint8_t ret = LW232_OK;
uint8_t idx = 0;
if (CAN_OK == readMsgBufID(&lw232_CanId, &lw232_PacketLen, lw232_Buffer)) {
if (lw232_CanId > 0x1FFFFFFF) {
ret = LW232_ERR; // address if totally wrong
}
else if (checkPassFilter(lw232_CanId)) {// do we want to skip some addresses?
if (isExtendedFrame()) {
printChar(LW232_TR29);
printFullByte(HIGH_BYTE(HIGH_WORD(lw232_CanId)));
printFullByte(LOW_BYTE(HIGH_WORD(lw232_CanId)));
printFullByte(HIGH_BYTE(LOW_WORD(lw232_CanId)));
printFullByte(LOW_BYTE(LOW_WORD(lw232_CanId)));
}
else {
printChar(LW232_TR11);
printNibble(HIGH_BYTE(LOW_WORD(lw232_CanId)));
printFullByte(LOW_BYTE(LOW_WORD(lw232_CanId)));
}
//write data len
printNibble(lw232_PacketLen);
//write data
for (idx = 0; idx < lw232_PacketLen; idx++) {
printFullByte(lw232_Buffer[idx]);
}
//write timestamp if needed
if (lw232_TimeStamp != LW232_TIMESTAMP_OFF) {
uint32_t time = 0; //millis();
if (lw232_TimeStamp == LW232_TIMESTAMP_ON_NORMAL) {
// standard LAWICEL protocol. two bytes.
time %= 60000;
} else {
// non standard protocol - 4 bytes timestamp
printFullByte(HIGH_BYTE(HIGH_WORD(time)));
printFullByte(LOW_BYTE(HIGH_WORD(time)));
}
printFullByte(HIGH_BYTE(LOW_WORD(time)));
printFullByte(LOW_BYTE(LOW_WORD(time)));
}
}
}
else {
ret = LW232_ERR;
}
return ret;
}
void printInt(void * foo, uint8_t bytes)
{
uint8_t * b = (uint8_t *) foo;
bytes -= 1;
USCI_printString("0x");
do {
printNibble(b[bytes] >> 4);
printNibble(b[bytes]);
}
while (bytes--);
RET();
}
void PiLink::receive(void){
while (piStream.available() > 0) {
char inByte = piStream.read();
switch(inByte){
case ' ':
case '\n':
case '\r':
break;
#if BREWPI_SIMULATE==1
case 'y':
parseJson(HandleSimulatorConfig);
break;
case 'Y':
printSimulatorSettings();
break;
#endif
case 'A': // alarm on
soundAlarm(true);
break;
case 'a': // alarm off
soundAlarm(false);
break;
case 't': // temperatures requested
printTemperatures();
break;
case 'C': // Set default constants
tempControl.loadDefaultConstants();
display.printStationaryText(); // reprint stationary text to update to right degree unit
sendControlConstants(); // update script with new settings
logInfo(INFO_DEFAULT_CONSTANTS_LOADED);
break;
case 'S': // Set default settings
tempControl.loadDefaultSettings();
sendControlSettings(); // update script with new settings
logInfo(INFO_DEFAULT_SETTINGS_LOADED);
break;
case 's': // Control settings requested
sendControlSettings();
break;
case 'c': // Control constants requested
sendControlConstants();
break;
case 'v': // Control variables requested, send Control Object as json
sendControlVariables();
break;
case 'n':
// v version
// s shield type
// y: simulator
// b: board
print_P(PSTR( "N:{"
"\"v\":\"" PRINTF_PROGMEM "\","
"\"n\":\"" PRINTF_PROGMEM "\","
"\"s\":%d,"
"\"y\":%d,"
"\"b\":\"%c\","
"\"l\":\"%d\""
"}"),
PSTR(VERSION_STRING), // v:
PSTR(stringify(BUILD_NAME)), // n:
getShieldVersion(), // s:
BREWPI_SIMULATE, // y:
BREWPI_BOARD, // b:
BREWPI_LOG_MESSAGES_VERSION); // l:
printNewLine();
break;
case 'l': // Display content requested
printResponse('L');
piStream.print('[');
char stringBuffer[21];
for(uint8_t i=0;i<4;i++){
display.getLine(i, stringBuffer);
print_P(PSTR("\"%s\""), stringBuffer);
char close = (i<3) ? ',':']';
piStream.print(close);
}
printNewLine();
break;
case 'j': // Receive settings as json
receiveJson();
break;
#if BREWPI_EEPROM_HELPER_COMMANDS
case 'e': // dump contents of eeprom
openListResponse('E');
for (uint16_t i=0; i<1024;) {
if (i>0) {
piLink.printNewLine();
piLink.print(',');
}
piLink.print('\"');
for (uint8_t j=0; j<64; j++) {
uint8_t d = eepromAccess.readByte(i++);
printNibble(d>>4);
printNibble(d);
}
piLink.print('\"');
}
closeListResponse();
break;
#endif
case 'E': // initialize eeprom
eepromManager.initializeEeprom();
logInfo(INFO_EEPROM_INITIALIZED);
settingsManager.loadSettings();
break;
case 'd': // list devices in eeprom order
openListResponse('d');
deviceManager.listDevices(piStream);
closeListResponse();
break;
case 'U': // update device
deviceManager.parseDeviceDefinition(piStream);
break;
case 'h': // hardware query
openListResponse('h');
deviceManager.enumerateHardwareToStream(piStream);
closeListResponse();
break;
#if (BREWPI_DEBUG > 0)
case 'Z': // zap eeprom
eepromManager.zapEeprom();
logInfo(INFO_EEPROM_ZAPPED);
break;
#endif
case 'R': // reset
handleReset();
break;
case 'F': // flash firmware
flashFirmware();
break;
default:
logWarningInt(WARNING_INVALID_COMMAND, inByte);
}
}
}
