Fix core to match mbed deprecation

Author: facchinm

cores/arduino/Serial.cpp

@@ -74,7 +74,7 @@ void UART::begin(unsigned long baudrate, uint16_t config) {
 
 void UART::begin(unsigned long baudrate) {
 	if (_serial == NULL) {
-		_serial = new mbed::RawSerial(tx, rx, baudrate);
+		_serial = new mbed::UnbufferedSerial(tx, rx, baudrate);
 	}
 	if (rts != NC) {
 		_serial->set_flow_control(mbed::SerialBase::Flow::RTSCTS, rts, cts);
@@ -86,7 +86,8 @@ void UART::begin(unsigned long baudrate) {
 
 void UART::on_rx() {
 	while(_serial->readable()) {
-		rx_buffer.store_char(_serial->getc());
+		char c;
+		rx_buffer.store_char(_serial->read(&c, 1));
 	}
 }
 
@@ -115,33 +116,16 @@ void UART::flush() {
 
 size_t UART::write(uint8_t c) {
 	while (!_serial->writeable()) {}
-	int ret = _serial->putc(c);
+	int ret = _serial->write(&c, 1);
 	return ret == -1 ? 0 : 1;
 }
 
-#ifdef DEVICE_SERIAL_ASYNCH
 size_t UART::write(const uint8_t* c, size_t len) {
-
-	uint8_t* p = (uint8_t*)c;
-	uint8_t* end = p + len;
-
-	while (!_serial->writeable()) yield();
-
-	auto _write_block = [this](const uint8_t* c, size_t len) {
-		_block = true;
-		_serial->write(c, len, mbed::callback(this, &UART::block_tx));
-		while (_block == true) yield();
-		return len;
-	};
-
-	while ( p < end ) {
-		size_t _len = end - p < WRITE_BUFF_SZ ? len % WRITE_BUFF_SZ : WRITE_BUFF_SZ;
-		p += _write_block(p, _len);
-	}
-
-	return len;
+	while (!_serial->writeable()) {}
+	_serial->set_blocking(true);
+	int ret = _serial->write(c, len);
+	return ret == -1 ? 0 : 1;
 }
-#endif
 
 void UART::block_tx(int _a) {
 	_block = false;

cores/arduino/Serial.h

@@ -22,7 +22,7 @@
 
 #include "api/RingBuffer.h"
 #include "Arduino.h"
-#include "mbed/drivers/RawSerial.h"
+#include "mbed/drivers/UnbufferedSerial.h"
 
 #ifdef __cplusplus
 
@@ -42,9 +42,7 @@ class UART : public HardwareSerial {
 		int read(void);
 		void flush(void);
 		size_t write(uint8_t c);
-		#ifdef DEVICE_SERIAL_ASYNCH
 		size_t write(const uint8_t*, size_t);
-		#endif
 		using Print::write; // pull in write(str) and write(buf, size) from Print
 		operator bool();
 
@@ -54,7 +52,7 @@ class UART : public HardwareSerial {
 		bool _block;
 		// See https://github.com/ARMmbed/mbed-os/blob/f5b5989fc81c36233dbefffa1d023d1942468d42/targets/TARGET_NORDIC/TARGET_NRF5x/TARGET_NRF52/serial_api.c#L76
 		const size_t WRITE_BUFF_SZ = 32;
-		mbed::RawSerial* _serial = NULL;
+		mbed::UnbufferedSerial* _serial = NULL;
 		PinName tx, rx, rts, cts;
 		RingBufferN<256> rx_buffer;
 		uint8_t intermediate_buf[4];

libraries/WiFi/src/WiFiClient.cpp

@@ -30,7 +30,8 @@ int arduino::WiFiClient::connect(IPAddress ip, uint16_t port) {
 
 int arduino::WiFiClient::connect(const char *host, uint16_t port) {
 	if (sock == NULL) {
-		sock = new TCPSocket(WiFi.getNetwork());
+		sock = new TCPSocket();
+		((TCPSocket*)sock)->open(WiFi.getNetwork());
 	}
 	//sock->sigio(mbed::callback(this, &WiFiClient::getStatus));
 	//sock->set_blocking(false);

libraries/WiFi/src/WiFiServer.cpp

@@ -17,7 +17,8 @@ uint8_t arduino::WiFiServer::status() {
 
 void arduino::WiFiServer::begin() {
 	if (sock == NULL) {
-		sock = new TCPSocket(WiFi.getNetwork());
+		sock = new TCPSocket();
+		((TCPSocket*)sock)->open(WiFi.getNetwork());
 	}
 	sock->bind(_port);
 	sock->listen(5);