arduino-esp32/cores/esp32/esp32-hal-uart.h
Rodrigo Garcia b1d072df9f
Implements UART SerialHardware Refactoring on top of IDF (#5549)
## 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.
2021-08-23 17:25:33 +03:00

88 lines
2.5 KiB
C

// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef MAIN_ESP32_HAL_UART_H_
#define MAIN_ESP32_HAL_UART_H_
#ifdef __cplusplus
extern "C" {
#endif
#include <stdint.h>
#include <stdbool.h>
#include <stdlib.h>
#define SERIAL_5N1 0x8000010
#define SERIAL_6N1 0x8000014
#define SERIAL_7N1 0x8000018
#define SERIAL_8N1 0x800001c
#define SERIAL_5N2 0x8000030
#define SERIAL_6N2 0x8000034
#define SERIAL_7N2 0x8000038
#define SERIAL_8N2 0x800003c
#define SERIAL_5E1 0x8000012
#define SERIAL_6E1 0x8000016
#define SERIAL_7E1 0x800001a
#define SERIAL_8E1 0x800001e
#define SERIAL_5E2 0x8000032
#define SERIAL_6E2 0x8000036
#define SERIAL_7E2 0x800003a
#define SERIAL_8E2 0x800003e
#define SERIAL_5O1 0x8000013
#define SERIAL_6O1 0x8000017
#define SERIAL_7O1 0x800001b
#define SERIAL_8O1 0x800001f
#define SERIAL_5O2 0x8000033
#define SERIAL_6O2 0x8000037
#define SERIAL_7O2 0x800003b
#define SERIAL_8O2 0x800003f
struct uart_struct_t;
typedef struct uart_struct_t uart_t;
uart_t* uartBegin(uint8_t uart_nr, uint32_t baudrate, uint32_t config, int8_t rxPin, int8_t txPin, uint16_t queueLen, bool inverted, uint8_t rxfifo_full_thrhd);
void uartEnd(uart_t* uart);
uint32_t uartAvailable(uart_t* uart);
uint32_t uartAvailableForWrite(uart_t* uart);
uint8_t uartRead(uart_t* uart);
uint8_t uartPeek(uart_t* uart);
void uartWrite(uart_t* uart, uint8_t c);
void uartWriteBuf(uart_t* uart, const uint8_t * data, size_t len);
void uartFlush(uart_t* uart);
void uartFlushTxOnly(uart_t* uart, bool txOnly );
void uartSetBaudRate(uart_t* uart, uint32_t baud_rate);
uint32_t uartGetBaudRate(uart_t* uart);
void uartSetRxInvert(uart_t* uart, bool invert);
void uartSetDebug(uart_t* uart);
int uartGetDebug();
bool uartIsDriverInstalled(uart_t* uart);
void uartSetPins(uart_t* uart, uint8_t rxPin, uint8_t txPin);
void uartStartDetectBaudrate(uart_t *uart);
unsigned long uartDetectBaudrate(uart_t *uart);
#ifdef __cplusplus
}
#endif
#endif /* MAIN_ESP32_HAL_UART_H_ */