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Implements UART SerialHardware Refactoring on top of IDF (#5549)

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## Summary
This PR is a complete reffactoring of UART Serial Hardware and respective HAL in order to use IDF instead of current Register manipulation approach. 

It  implements Arduino SerialEvent functionality. 

Fix #5287  
Fix #5273 
Fix #5519 
Fix #5247 
Fix #5403
Fix #5429
Fix #5047
Fix #5463
Fix #5362 
Fix #5112  
Fix #5443 

## Impact
It solves many reported issues related to UART.
It was tested and works fine for ESP32, ESP-S2 and ESP32-C3.
This commit is contained in:
Rodrigo Garcia
2021-08-23 11:25:33 -03:00
committed by GitHub
parent 929cf2c2d5
commit b1d072df9f
4 changed files with 327 additions and 477 deletions
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11
cores/esp32/HardwareSerial.h
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@ -49,6 +49,7 @@
#include "Stream.h"
#include "esp32-hal.h"
#include "soc/soc_caps.h"
class HardwareSerial: public Stream
{
@ -56,7 +57,7 @@ public:
HardwareSerial(int uart_nr);
void begin(unsigned long baud, uint32_t config=SERIAL_8N1, int8_t rxPin=-1, int8_t txPin=-1, bool invert=false, unsigned long timeout_ms = 20000UL, uint8_t rxfifo_full_thrhd = 112);
void end();
void end(bool turnOffDebug = true);
void updateBaudRate(unsigned long baud);
int available(void);
int availableForWrite(void);
@ -98,16 +99,14 @@ public:
uint32_t baudRate();
operator bool() const;
size_t setRxBufferSize(size_t);
void setDebugOutput(bool);
void setRxInvert(bool);
void setPins(uint8_t rxPin, uint8_t txPin);
protected:
int _uart_nr;
uart_t* _uart;
uint8_t _tx_pin;
uint8_t _rx_pin;
};
extern void serialEventRun(void) __attribute__((weak));
@ -123,8 +122,10 @@ extern HardwareSerial Serial0;
#else
extern HardwareSerial Serial;
#endif
#if SOC_UART_NUM > 1
extern HardwareSerial Serial1;
#if CONFIG_IDF_TARGET_ESP32
#endif
#if SOC_UART_NUM > 2
extern HardwareSerial Serial2;
#endif
#endif