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Unverified Commit 75b7f4b6 authored by Rodrigo Garcia's avatar Rodrigo Garcia Committed by GitHub
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feat(uart): backports UART pin attachment from 3.0.0 to 2.0.15 (#9176) 

* feat(uart): backports UART pin attachment from 3.0.0 to 2.0.15

* Fix (uart): Fixes additional Serial HardwareSerial errors for 2.0.14

* Update esp32-hal-uart.c

* Update HardwareSerial.h

* Apply suggestions from code review

* Fixes UartAvailableForWrite #9319

* Fixes  (set RX/TX buffer size)
parent 995d3e9f
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cores/esp32/HardwareSerial.cpp
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cores/esp32/HardwareSerial.h
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......@@ -49,13 +49,45 @@
#include <functional>
#include "Stream.h"
#include "esp32-hal.h"
#include "hal/uart_types.h"
#include "soc/soc_caps.h"
#include "HWCDC.h"
#include "USBCDC.h"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "freertos/semphr.h"
enum SerialConfig {
SERIAL_5N1 = 0x8000010,
SERIAL_6N1 = 0x8000014,
SERIAL_7N1 = 0x8000018,
SERIAL_8N1 = 0x800001c,
SERIAL_5N2 = 0x8000030,
SERIAL_6N2 = 0x8000034,
SERIAL_7N2 = 0x8000038,
SERIAL_8N2 = 0x800003c,
SERIAL_5E1 = 0x8000012,
SERIAL_6E1 = 0x8000016,
SERIAL_7E1 = 0x800001a,
SERIAL_8E1 = 0x800001e,
SERIAL_5E2 = 0x8000032,
SERIAL_6E2 = 0x8000036,
SERIAL_7E2 = 0x800003a,
SERIAL_8E2 = 0x800003e,
SERIAL_5O1 = 0x8000013,
SERIAL_6O1 = 0x8000017,
SERIAL_7O1 = 0x800001b,
SERIAL_8O1 = 0x800001f,
SERIAL_5O2 = 0x8000033,
SERIAL_6O2 = 0x8000037,
SERIAL_7O2 = 0x800003b,
SERIAL_8O2 = 0x800003f
};
typedef uart_mode_t SerialMode;
typedef uart_hw_flowcontrol_t SerialHwFlowCtrl;
typedef enum {
UART_NO_ERROR,
UART_BREAK_ERROR,
......@@ -65,6 +97,91 @@ typedef enum {
UART_PARITY_ERROR
} hardwareSerial_error_t;
#ifndef ARDUINO_SERIAL_EVENT_TASK_STACK_SIZE
#define ARDUINO_SERIAL_EVENT_TASK_STACK_SIZE 2048
#endif
#ifndef ARDUINO_SERIAL_EVENT_TASK_PRIORITY
#define ARDUINO_SERIAL_EVENT_TASK_PRIORITY (configMAX_PRIORITIES-1)
#endif
#ifndef ARDUINO_SERIAL_EVENT_TASK_RUNNING_CORE
#define ARDUINO_SERIAL_EVENT_TASK_RUNNING_CORE -1
#endif
// UART0 pins are defined by default by the bootloader.
// The definitions for SOC_* should not be changed unless the bootloader pins
// have changed and you know what you are doing.
#ifndef SOC_RX0
#if CONFIG_IDF_TARGET_ESP32
#define SOC_RX0 (gpio_num_t)3
#elif CONFIG_IDF_TARGET_ESP32S2 || CONFIG_IDF_TARGET_ESP32S3
#define SOC_RX0 (gpio_num_t)44
#elif CONFIG_IDF_TARGET_ESP32C3
#define SOC_RX0 (gpio_num_t)20
#endif
#endif
#ifndef SOC_TX0
#if CONFIG_IDF_TARGET_ESP32
#define SOC_TX0 (gpio_num_t)1
#elif CONFIG_IDF_TARGET_ESP32S2 || CONFIG_IDF_TARGET_ESP32S3
#define SOC_TX0 (gpio_num_t)43
#elif CONFIG_IDF_TARGET_ESP32C3
#define SOC_TX0 (gpio_num_t)21
#endif
#endif
// Default pins for UART1 are arbitrary, and defined here for convenience.
#if SOC_UART_NUM > 1
#ifndef RX1
#if CONFIG_IDF_TARGET_ESP32
#define RX1 (gpio_num_t)26
#elif CONFIG_IDF_TARGET_ESP32S2
#define RX1 (gpio_num_t)4
#elif CONFIG_IDF_TARGET_ESP32C3
#define RX1 (gpio_num_t)18
#elif CONFIG_IDF_TARGET_ESP32S3
#define RX1 (gpio_num_t)15
#endif
#endif
#ifndef TX1
#if CONFIG_IDF_TARGET_ESP32
#define TX1 (gpio_num_t)27
#elif CONFIG_IDF_TARGET_ESP32S2
#define TX1 (gpio_num_t)5
#elif CONFIG_IDF_TARGET_ESP32C3
#define TX1 (gpio_num_t)19
#elif CONFIG_IDF_TARGET_ESP32S3
#define TX1 (gpio_num_t)16
#endif
#endif
#endif /* SOC_UART_NUM > 1 */
// Default pins for UART2 are arbitrary, and defined here for convenience.
#if SOC_UART_NUM > 2
#ifndef RX2
#if CONFIG_IDF_TARGET_ESP32
#define RX2 (gpio_num_t)4
#elif CONFIG_IDF_TARGET_ESP32S3
#define RX2 (gpio_num_t)19
#endif
#endif
#ifndef TX2
#if CONFIG_IDF_TARGET_ESP32
#define TX2 (gpio_num_t)25
#elif CONFIG_IDF_TARGET_ESP32S3
#define TX2 (gpio_num_t)20
#endif
#endif
#endif /* SOC_UART_NUM > 2 */
typedef std::function<void(void)> OnReceiveCb;
typedef std::function<void(hardwareSerial_error_t)> OnReceiveErrorCb;
......@@ -106,8 +223,13 @@ public:
// eventQueueReset clears all events in the queue (the events that trigger onReceive and onReceiveError) - maybe usefull in some use cases
void eventQueueReset();
// When pins are changed, it will detach the previous ones
// if pin is negative, it won't be set/changed and will be kept as is
// timeout_ms is used in baudrate detection (ESP32, ESP32S2 only)
// invert will invert RX/TX polarity
// rxfifo_full_thrhd if the UART Flow Control Threshold in the UART FIFO (max 127)
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(bool fullyTerminate = true);
void end(void);
void updateBaudRate(unsigned long baud);
int available(void);
int availableForWrite(void);
......@@ -160,12 +282,22 @@ public:
void setRxInvert(bool);
// Negative Pin Number will keep it unmodified, thus this function can set individual pins
// SetPins shall be called after Serial begin()
// setPins() can be called after or before begin()
// When pins are changed, it will detach the previous ones
bool setPins(int8_t rxPin, int8_t txPin, int8_t ctsPin = -1, int8_t rtsPin = -1);
// Enables or disables Hardware Flow Control using RTS and/or CTS pins (must use setAllPins() before)
bool setHwFlowCtrlMode(uint8_t mode = HW_FLOWCTRL_CTS_RTS, uint8_t threshold = 64); // 64 is half FIFO Length
// UART_HW_FLOWCTRL_DISABLE = 0x0 disable hardware flow control
// UART_HW_FLOWCTRL_RTS = 0x1 enable RX hardware flow control (rts)
// UART_HW_FLOWCTRL_CTS = 0x2 enable TX hardware flow control (cts)
// UART_HW_FLOWCTRL_CTS_RTS = 0x3 enable hardware flow control
bool setHwFlowCtrlMode(SerialHwFlowCtrl mode = UART_HW_FLOWCTRL_CTS_RTS, uint8_t threshold = 64); // 64 is half FIFO Length
// Used to set RS485 modes such as UART_MODE_RS485_HALF_DUPLEX for Auto RTS function on ESP32
bool setMode(uint8_t mode);
// UART_MODE_UART = 0x00 mode: regular UART mode
// UART_MODE_RS485_HALF_DUPLEX = 0x01 mode: half duplex RS485 UART mode control by RTS pin
// UART_MODE_IRDA = 0x02 mode: IRDA UART mode
// UART_MODE_RS485_COLLISION_DETECT = 0x03 mode: RS485 collision detection UART mode (used for test purposes)
// UART_MODE_RS485_APP_CTRL = 0x04 mode: application control RS485 UART mode (used for test purposes)
bool setMode(SerialMode mode);
size_t setRxBufferSize(size_t new_size);
size_t setTxBufferSize(size_t new_size);
......@@ -183,7 +315,6 @@ protected:
#if !CONFIG_DISABLE_HAL_LOCKS
SemaphoreHandle_t _lock;
#endif
int8_t _rxPin, _txPin, _ctsPin, _rtsPin;
void _createEventTask(void *args);
void _destroyEventTask(void);
......@@ -197,10 +328,6 @@ extern void serialEventRun(void) __attribute__((weak));
#define ARDUINO_USB_CDC_ON_BOOT 0
#endif
#if ARDUINO_USB_CDC_ON_BOOT //Serial used for USB CDC
#if !ARDUINO_USB_MODE
#include "USB.h"
#include "USBCDC.h"
#endif
extern HardwareSerial Serial0;
#else
extern HardwareSerial Serial;
......@@ -211,6 +338,5 @@ extern HardwareSerial Serial1;
#if SOC_UART_NUM > 2
extern HardwareSerial Serial2;
#endif
#endif
#endif // !defined(NO_GLOBAL_INSTANCES) && !defined(NO_GLOBAL_SERIAL)
#endif // HardwareSerial_h
cores/esp32/esp32-hal-uart.c
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cores/esp32/esp32-hal-uart.h
View file @ 75b7f4b6
// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
// Copyright 2015-2024 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.
......@@ -24,83 +24,14 @@ extern "C" {
#include <stdlib.h>
#include "freertos/FreeRTOS.h"
#include "freertos/queue.h"
#ifdef __cplusplus
enum SerialConfig {
SERIAL_5N1 = 0x8000010,
SERIAL_6N1 = 0x8000014,
SERIAL_7N1 = 0x8000018,
SERIAL_8N1 = 0x800001c,
SERIAL_5N2 = 0x8000030,
SERIAL_6N2 = 0x8000034,
SERIAL_7N2 = 0x8000038,
SERIAL_8N2 = 0x800003c,
SERIAL_5E1 = 0x8000012,
SERIAL_6E1 = 0x8000016,
SERIAL_7E1 = 0x800001a,
SERIAL_8E1 = 0x800001e,
SERIAL_5E2 = 0x8000032,
SERIAL_6E2 = 0x8000036,
SERIAL_7E2 = 0x800003a,
SERIAL_8E2 = 0x800003e,
SERIAL_5O1 = 0x8000013,
SERIAL_6O1 = 0x8000017,
SERIAL_7O1 = 0x800001b,
SERIAL_8O1 = 0x800001f,
SERIAL_5O2 = 0x8000033,
SERIAL_6O2 = 0x8000037,
SERIAL_7O2 = 0x800003b,
SERIAL_8O2 = 0x800003f
};
#else
#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
#endif // __cplusplus
// These are Hardware Flow Contol possible usage
// equivalent to UDF enum uart_hw_flowcontrol_t from
// https://github.com/espressif/esp-idf/blob/master/components/hal/include/hal/uart_types.h#L75-L81
#define HW_FLOWCTRL_DISABLE 0x0 // disable HW Flow Control
#define HW_FLOWCTRL_RTS 0x1 // use only RTS PIN for HW Flow Control
#define HW_FLOWCTRL_CTS 0x2 // use only CTS PIN for HW Flow Control
#define HW_FLOWCTRL_CTS_RTS 0x3 // use both CTS and RTS PIN for HW Flow Control
// These are Hardware Uart Modes possible usage
// equivalent to UDF enum uart_mode_t from
// https://github.com/espressif/esp-idf/blob/master/components/hal/include/hal/uart_types.h#L34-L40
#define MODE_UART 0x00 // mode: regular UART mode
#define MODE_RS485_HALF_DUPLEX 0x01 // mode: half duplex RS485 UART mode control by RTS pin
#define MODE_IRDA 0x02 // mode: IRDA UART mode
#define MODE_RS485_COLLISION_DETECT 0x03 // mode: RS485 collision detection UART mode (used for test purposes)
#define MODE_RS485_APP_CTRL 0x04
#include "hal/uart_types.h"
struct uart_struct_t;
typedef struct uart_struct_t uart_t;
bool _testUartBegin(uint8_t uart_nr, uint32_t baudrate, uint32_t config, int8_t rxPin, int8_t txPin, uint16_t rx_buffer_size, uint16_t tx_buffer_size, bool inverted, uint8_t rxfifo_full_thrhd);
uart_t* uartBegin(uint8_t uart_nr, uint32_t baudrate, uint32_t config, int8_t rxPin, int8_t txPin, uint16_t rx_buffer_size, uint16_t tx_buffer_size, bool inverted, uint8_t rxfifo_full_thrhd);
void uartEnd(uart_t* uart);
void uartEnd(uint8_t uart_num);
// This is used to retrieve the Event Queue pointer from a UART IDF Driver in order to allow user to deal with its events
void uartGetEventQueue(uart_t* uart, QueueHandle_t *q);
......@@ -130,16 +61,30 @@ int uartGetDebug();
bool uartIsDriverInstalled(uart_t* uart);
// Negative Pin Number will keep it unmodified, thus this function can set/reset individual pins
// Negative Pin Number will keep it unmodified, thus this function can set individual pins
// When pins are changed, it will detach the previous ones
// Can be called before or after begin()
bool uartSetPins(uint8_t uart_num, int8_t rxPin, int8_t txPin, int8_t ctsPin, int8_t rtsPin);
void uartDetachPins(uint8_t uart_num, int8_t rxPin, int8_t txPin, int8_t ctsPin, int8_t rtsPin);
// helper functions
int8_t uart_get_RxPin(uint8_t uart_num);
int8_t uart_get_TxPin(uint8_t uart_num);
// Enables or disables HW Flow Control function -- needs also to set CTS and/or RTS pins
bool uartSetHwFlowCtrlMode(uart_t *uart, uint8_t mode, uint8_t threshold);
// UART_HW_FLOWCTRL_DISABLE = 0x0 disable hardware flow control
// UART_HW_FLOWCTRL_RTS = 0x1 enable RX hardware flow control (rts)
// UART_HW_FLOWCTRL_CTS = 0x2 enable TX hardware flow control (cts)
// UART_HW_FLOWCTRL_CTS_RTS = 0x3 enable hardware flow control
bool uartSetHwFlowCtrlMode(uart_t *uart, uart_hw_flowcontrol_t mode, uint8_t threshold);
// Used to set RS485 function -- needs to disable HW Flow Control and set RTS pin to use
// RTS pin becomes RS485 half duplex RE/DE
bool uartSetMode(uart_t *uart, uint8_t mode);
// UART_MODE_UART = 0x00 mode: regular UART mode
// UART_MODE_RS485_HALF_DUPLEX = 0x01 mode: half duplex RS485 UART mode control by RTS pin
// UART_MODE_IRDA = 0x02 mode: IRDA UART mode
// UART_MODE_RS485_COLLISION_DETECT = 0x03 mode: RS485 collision detection UART mode (used for test purposes)
// UART_MODE_RS485_APP_CTRL = 0x04 mode: application control RS485 UART mode (used for test purposes)
bool uartSetMode(uart_t *uart, uart_mode_t mode);
void uartStartDetectBaudrate(uart_t *uart);
unsigned long uartDetectBaudrate(uart_t *uart);
......
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