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ESPEasySerial_ESP8266_noSWserial.cpp
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ESPEasySerial_ESP8266_noSWserial.cpp
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#include <ESPeasySerial.h>
#if defined(DISABLE_SOFTWARE_SERIAL) && defined(ESP8266)
// ****************************************
// ESP8266 implementation wrapper
// No SoftwareSerial
// Only support HW serial on Serial 0 .. 1
// ****************************************
ESPeasySerial::ESPeasySerial(
ESPEasySerialPort port,
int receivePin,
int transmitPin,
bool inverse_logic,
unsigned int buffSize,
bool forceSWserial)
: _receivePin(receivePin), _transmitPin(transmitPin)
{
resetConfig(port, receivePin, transmitPin, inverse_logic, buffSize, forceSWserial);
}
ESPeasySerial::~ESPeasySerial() {
flush();
end();
}
void ESPeasySerial::resetConfig(ESPEasySerialPort port, int receivePin, int transmitPin, bool inverse_logic, unsigned int buffSize, bool forceSWserial)
{
_receivePin = receivePin;
_transmitPin = transmitPin;
_inverse_logic = inverse_logic;
_buffSize = buffSize;
_serialtype = ESPeasySerialType::getSerialType(port, receivePin, transmitPin);
if (isValid()) {
getHW()->pins(transmitPin, receivePin);
}
}
void ESPeasySerial::begin(unsigned long baud, SerialConfig config, SerialMode mode) {
_baud = baud;
if (_serialtype == ESPEasySerialPort::serial0_swap) {
// Serial.swap() should only be called here and only once.
if (!_serial0_swap_active) {
Serial.begin(baud, config, mode, _transmitPin);
Serial.swap();
_serial0_swap_active = true;
return;
}
}
if (!isValid()) {
_baud = 0;
return;
}
doHWbegin(baud, config, mode);
}
void ESPeasySerial::end() {
if (!isValid()) {
return;
}
if (_serialtype == ESPEasySerialPort::serial0_swap) {
if (_serial0_swap_active) {
Serial.end();
Serial.swap();
_serial0_swap_active = false;
return;
}
}
getHW()->end();
}
HardwareSerial * ESPeasySerial::getHW() {
switch (_serialtype) {
case ESPEasySerialPort::serial0:
case ESPEasySerialPort::serial0_swap: return &Serial;
case ESPEasySerialPort::serial1: return &Serial1;
case ESPEasySerialPort::software: break;
default: break;
}
return nullptr;
}
const HardwareSerial * ESPeasySerial::getHW() const {
switch (_serialtype) {
case ESPEasySerialPort::serial0:
case ESPEasySerialPort::serial0_swap: return &Serial;
case ESPEasySerialPort::serial1: return &Serial1;
case ESPEasySerialPort::software: break;
default: break;
}
return nullptr;
}
bool ESPeasySerial::isValid() const {
switch (_serialtype) {
case ESPEasySerialPort::serial0: return !_serial0_swap_active;
case ESPEasySerialPort::serial0_swap: return _serial0_swap_active;
case ESPEasySerialPort::serial1: return true; // Must also check RX pin?
case ESPEasySerialPort::software: return false;
default: break;
}
return false;
}
int ESPeasySerial::peek(void) {
if (!isValid()) {
return -1;
}
return getHW()->peek();
}
size_t ESPeasySerial::write(uint8_t val) {
if (!isValid()) {
return 0;
}
return getHW()->write(val);
}
size_t ESPeasySerial::write(const uint8_t *buffer, size_t size) {
if (!isValid() || !buffer) {
return 0;
}
return getHW()->write(buffer, size);
}
size_t ESPeasySerial::write(const char *buffer) {
if (!buffer) { return 0; }
return write(buffer, strlen(buffer));
}
int ESPeasySerial::read(void) {
if (!isValid()) {
return -1;
}
return getHW()->read();
}
size_t ESPeasySerial::readBytes(char *buffer, size_t size) {
if (!isValid() || !buffer) {
return 0;
}
return getHW()->readBytes(buffer, size);
}
size_t ESPeasySerial::readBytes(uint8_t *buffer, size_t size) {
return readBytes((char *)buffer, size);
}
int ESPeasySerial::available(void) {
if (!isValid()) {
return 0;
}
return getHW()->available();
}
int ESPeasySerial::availableForWrite() {
if (!isValid()) {
return 0;
}
return getHW()->availableForWrite();
}
void ESPeasySerial::flush(void) {
if (!isValid()) {
return;
}
getHW()->flush();
}
bool ESPeasySerial::overflow() {
return hasOverrun();
}
bool ESPeasySerial::hasOverrun(void) {
return false;
}
// *****************************
// HardwareSerial specific
// *****************************
void ESPeasySerial::swap(uint8_t tx_pin) {
if (isValid()) {
switch (_serialtype) {
case ESPEasySerialPort::serial0:
case ESPEasySerialPort::serial0_swap:
// isValid() also checks for correct swap active state.
_serial0_swap_active = !_serial0_swap_active;
getHW()->swap(tx_pin);
if (_serialtype == ESPEasySerialPort::serial0) {
_serialtype = ESPEasySerialPort::serial0_swap;
} else {
_serialtype = ESPEasySerialPort::serial0;
}
break;
default:
return;
}
}
}
int ESPeasySerial::baudRate(void) {
if (!isValid()) {
return _baud;
}
return getHW()->baudRate();
}
void ESPeasySerial::setDebugOutput(bool enable) {
if (!isValid()) {
return;
}
getHW()->setDebugOutput(enable);
}
bool ESPeasySerial::isTxEnabled(void) {
if (!isValid()) {
return false;
}
return getHW()->isTxEnabled();
}
bool ESPeasySerial::isRxEnabled(void) {
if (!isValid()) {
return false;
}
return getHW()->isRxEnabled();
}
bool ESPeasySerial::hasRxError(void) {
# ifdef CORE_POST_2_5_0
if (!isValid()) {
return false;
}
return getHW()->hasRxError();
# else // ifdef CORE_POST_2_5_0
return false;
# endif // ifdef CORE_POST_2_5_0
}
void ESPeasySerial::startDetectBaudrate() {
if (!isValid()) {
return;
}
# ifndef ARDUINO_ESP8266_RELEASE_2_3_0
getHW()->startDetectBaudrate();
# endif // ifndef ARDUINO_ESP8266_RELEASE_2_3_0
}
unsigned long ESPeasySerial::testBaudrate() {
if (!isValid()) {
return 0;
}
# ifndef ARDUINO_ESP8266_RELEASE_2_3_0
return getHW()->testBaudrate();
# else // ifndef ARDUINO_ESP8266_RELEASE_2_3_0
return 0;
# endif // ifndef ARDUINO_ESP8266_RELEASE_2_3_0
}
unsigned long ESPeasySerial::detectBaudrate(time_t timeoutMillis) {
if (!isValid()) {
return 0;
}
# ifndef ARDUINO_ESP8266_RELEASE_2_3_0
return getHW()->detectBaudrate(timeoutMillis);
# else // ifndef ARDUINO_ESP8266_RELEASE_2_3_0
return 0;
# endif // ifndef ARDUINO_ESP8266_RELEASE_2_3_0
}
// *****************************
// SoftwareSerial specific
// *****************************
bool ESPeasySerial::listen() {
return false;
}
#endif // DISABLE_SOFTWARE_SERIAL