mirror of
https://github.com/esphome/esphome.git
synced 2024-11-10 01:07:45 +01:00
UART component support added for host platform (#6912)
Co-authored-by: Jesse Hills <3060199+jesserockz@users.noreply.github.com> Co-authored-by: Pavlo Dudnytskyi <pdudnytskyi@astrata.eu>
This commit is contained in:
parent
2873c6bbaf
commit
aa8c963c50
4 changed files with 410 additions and 2 deletions
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@ -1,5 +1,5 @@
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from typing import Optional
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import re
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import esphome.codegen as cg
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import esphome.config_validation as cv
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import esphome.final_validate as fv
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@ -11,6 +11,7 @@ from esphome.const import (
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CONF_NUMBER,
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CONF_RX_PIN,
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CONF_TX_PIN,
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CONF_PORT,
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CONF_UART_ID,
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CONF_DATA,
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CONF_RX_BUFFER_SIZE,
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@ -27,6 +28,7 @@ from esphome.const import (
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CONF_DUMMY_RECEIVER,
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CONF_DUMMY_RECEIVER_ID,
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CONF_LAMBDA,
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PLATFORM_HOST,
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)
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from esphome.core import CORE
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@ -45,6 +47,7 @@ RP2040UartComponent = uart_ns.class_("RP2040UartComponent", UARTComponent, cg.Co
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LibreTinyUARTComponent = uart_ns.class_(
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"LibreTinyUARTComponent", UARTComponent, cg.Component
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)
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HostUartComponent = uart_ns.class_("HostUartComponent", UARTComponent, cg.Component)
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NATIVE_UART_CLASSES = (
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str(IDFUARTComponent),
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@ -54,6 +57,39 @@ NATIVE_UART_CLASSES = (
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str(LibreTinyUARTComponent),
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)
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HOST_BAUD_RATES = [
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50,
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75,
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110,
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134,
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150,
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200,
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300,
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600,
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1200,
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1800,
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2400,
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4800,
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9600,
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19200,
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38400,
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57600,
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115200,
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230400,
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460800,
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500000,
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576000,
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921600,
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1000000,
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1152000,
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1500000,
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2000000,
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2500000,
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3000000,
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3500000,
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4000000,
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]
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UARTDevice = uart_ns.class_("UARTDevice")
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UARTWriteAction = uart_ns.class_("UARTWriteAction", automation.Action)
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UARTDebugger = uart_ns.class_("UARTDebugger", cg.Component, automation.Action)
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@ -95,6 +131,20 @@ def validate_invert_esp32(config):
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return config
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def validate_host_config(config):
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if CORE.is_host:
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if CONF_TX_PIN in config or CONF_RX_PIN in config:
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raise cv.Invalid(
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"TX and RX pins are not supported for UART on host platform."
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)
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if config[CONF_BAUD_RATE] not in HOST_BAUD_RATES:
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raise cv.Invalid(
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f"Host platform doesn't support baud rate {config[CONF_BAUD_RATE]}",
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path=[CONF_BAUD_RATE],
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)
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return config
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def _uart_declare_type(value):
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if CORE.is_esp8266:
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return cv.declare_id(ESP8266UartComponent)(value)
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@ -107,6 +157,8 @@ def _uart_declare_type(value):
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return cv.declare_id(RP2040UartComponent)(value)
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if CORE.is_libretiny:
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return cv.declare_id(LibreTinyUARTComponent)(value)
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if CORE.is_host:
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return cv.declare_id(HostUartComponent)(value)
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raise NotImplementedError
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@ -149,6 +201,12 @@ def maybe_empty_debug(value):
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return DEBUG_SCHEMA(value)
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def validate_port(value):
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if not re.match(r"^/(?:[^/]+/)[^/]+$", value):
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raise cv.Invalid("Port must be a valid device path")
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return value
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DEBUG_SCHEMA = cv.Schema(
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{
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cv.GenerateID(CONF_TRIGGER_ID): cv.declare_id(UARTDebugger),
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@ -181,6 +239,7 @@ CONFIG_SCHEMA = cv.All(
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cv.Required(CONF_BAUD_RATE): cv.int_range(min=1),
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cv.Optional(CONF_TX_PIN): pins.internal_gpio_output_pin_schema,
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cv.Optional(CONF_RX_PIN): validate_rx_pin,
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cv.Optional(CONF_PORT): cv.All(validate_port, cv.only_on(PLATFORM_HOST)),
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cv.Optional(CONF_RX_BUFFER_SIZE, default=256): cv.validate_bytes,
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cv.Optional(CONF_STOP_BITS, default=1): cv.one_of(1, 2, int=True),
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cv.Optional(CONF_DATA_BITS, default=8): cv.int_range(min=5, max=8),
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@ -193,8 +252,9 @@ CONFIG_SCHEMA = cv.All(
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cv.Optional(CONF_DEBUG): maybe_empty_debug,
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}
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).extend(cv.COMPONENT_SCHEMA),
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cv.has_at_least_one_key(CONF_TX_PIN, CONF_RX_PIN),
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cv.has_at_least_one_key(CONF_TX_PIN, CONF_RX_PIN, CONF_PORT),
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validate_invert_esp32,
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validate_host_config,
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)
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@ -236,6 +296,8 @@ async def to_code(config):
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if CONF_RX_PIN in config:
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rx_pin = await cg.gpio_pin_expression(config[CONF_RX_PIN])
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cg.add(var.set_rx_pin(rx_pin))
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if CONF_PORT in config:
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cg.add(var.set_name(config[CONF_PORT]))
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cg.add(var.set_rx_buffer_size(config[CONF_RX_BUFFER_SIZE]))
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cg.add(var.set_stop_bits(config[CONF_STOP_BITS]))
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cg.add(var.set_data_bits(config[CONF_DATA_BITS]))
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295
esphome/components/uart/uart_component_host.cpp
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295
esphome/components/uart/uart_component_host.cpp
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#ifdef USE_HOST
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#include "uart_component_host.h"
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#include "esphome/core/application.h"
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#include "esphome/core/defines.h"
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#include "esphome/core/helpers.h"
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#include "esphome/core/log.h"
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#ifndef __linux__
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#error This HostUartComponent implementation is only for Linux
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#endif
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <termios.h>
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#include <sys/ioctl.h>
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#ifdef USE_LOGGER
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#include "esphome/components/logger/logger.h"
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#endif
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namespace {
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speed_t get_baud(int baud) {
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switch (baud) {
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case 50:
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return B50;
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case 75:
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return B75;
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case 110:
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return B110;
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case 134:
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return B134;
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case 150:
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return B150;
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case 200:
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return B200;
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case 300:
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return B300;
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case 600:
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return B600;
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case 1200:
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return B1200;
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case 1800:
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return B1800;
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case 2400:
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return B2400;
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case 4800:
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return B4800;
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case 9600:
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return B9600;
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case 19200:
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return B19200;
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case 38400:
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return B38400;
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case 57600:
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return B57600;
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case 115200:
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return B115200;
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case 230400:
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return B230400;
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case 460800:
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return B460800;
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case 500000:
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return B500000;
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case 576000:
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return B576000;
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case 921600:
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return B921600;
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case 1000000:
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return B1000000;
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case 1152000:
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return B1152000;
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case 1500000:
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return B1500000;
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case 2000000:
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return B2000000;
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case 2500000:
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return B2500000;
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case 3000000:
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return B3000000;
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case 3500000:
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return B3500000;
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case 4000000:
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return B4000000;
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default:
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return B0;
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}
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}
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} // namespace
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namespace esphome {
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namespace uart {
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static const char *const TAG = "uart.host";
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HostUartComponent::~HostUartComponent() {
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if (this->file_descriptor_ != -1) {
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close(this->file_descriptor_);
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this->file_descriptor_ = -1;
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}
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}
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void HostUartComponent::setup() {
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ESP_LOGCONFIG(TAG, "Opening UART port...");
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speed_t baud = get_baud(this->baud_rate_);
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if (baud == B0) {
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ESP_LOGE(TAG, "Unsupported baud rate: %d", this->baud_rate_);
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this->mark_failed();
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return;
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}
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this->file_descriptor_ = ::open(this->port_name_.c_str(), O_RDWR | O_NOCTTY | O_NDELAY);
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if (this->file_descriptor_ == -1) {
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this->update_error_(strerror(errno));
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this->mark_failed();
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return;
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}
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fcntl(this->file_descriptor_, F_SETFL, 0);
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struct termios options;
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tcgetattr(this->file_descriptor_, &options);
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options.c_cflag &= ~CRTSCTS;
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options.c_cflag |= CREAD | CLOCAL;
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options.c_lflag &= ~ICANON;
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options.c_lflag &= ~ECHO;
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options.c_lflag &= ~ECHOE;
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options.c_lflag &= ~ECHONL;
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options.c_lflag &= ~ISIG;
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options.c_iflag &= ~(IXON | IXOFF | IXANY);
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options.c_iflag &= ~(IGNBRK | BRKINT | PARMRK | ISTRIP | INLCR | IGNCR | ICRNL);
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options.c_oflag &= ~OPOST;
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options.c_oflag &= ~ONLCR;
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// Set data bits
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options.c_cflag &= ~CSIZE; // Mask the character size bits
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switch (this->data_bits_) {
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case 5:
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options.c_cflag |= CS5;
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break;
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case 6:
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options.c_cflag |= CS6;
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break;
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case 7:
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options.c_cflag |= CS7;
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break;
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case 8:
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default:
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options.c_cflag |= CS8;
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break;
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}
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// Set parity
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switch (this->parity_) {
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case UART_CONFIG_PARITY_NONE:
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options.c_cflag &= ~PARENB;
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break;
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case UART_CONFIG_PARITY_EVEN:
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options.c_cflag |= PARENB;
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options.c_cflag &= ~PARODD;
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break;
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case UART_CONFIG_PARITY_ODD:
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options.c_cflag |= PARENB;
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options.c_cflag |= PARODD;
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break;
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};
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// Set stop bits
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if (this->stop_bits_ == 2) {
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options.c_cflag |= CSTOPB;
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} else {
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options.c_cflag &= ~CSTOPB;
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}
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cfsetispeed(&options, baud);
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cfsetospeed(&options, baud);
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tcsetattr(this->file_descriptor_, TCSANOW, &options);
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}
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void HostUartComponent::dump_config() {
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ESP_LOGCONFIG(TAG, "UART:");
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ESP_LOGCONFIG(TAG, " Port: %s", this->port_name_.c_str());
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if (this->file_descriptor_ == -1) {
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ESP_LOGCONFIG(TAG, " Port status: Not opened");
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if (!this->first_error_.empty()) {
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ESP_LOGCONFIG(TAG, " Error: %s", this->first_error_.c_str());
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}
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return;
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}
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ESP_LOGCONFIG(TAG, " Port status: opened");
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ESP_LOGCONFIG(TAG, " Baud Rate: %d", this->baud_rate_);
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ESP_LOGCONFIG(TAG, " Data Bits: %d", this->data_bits_);
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ESP_LOGCONFIG(TAG, " Parity: %s",
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this->parity_ == UART_CONFIG_PARITY_NONE ? "None"
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: this->parity_ == UART_CONFIG_PARITY_EVEN ? "Even"
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: "Odd");
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ESP_LOGCONFIG(TAG, " Stop Bits: %d", this->stop_bits_);
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this->check_logger_conflict();
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}
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void HostUartComponent::write_array(const uint8_t *data, size_t len) {
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if (this->file_descriptor_ == -1) {
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return;
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}
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size_t written = ::write(this->file_descriptor_, data, len);
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if (written != len) {
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this->update_error_(strerror(errno));
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return;
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}
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#ifdef USE_UART_DEBUGGER
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for (size_t i = 0; i < len; i++) {
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this->debug_callback_.call(UART_DIRECTION_TX, data[i]);
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}
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#endif
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return;
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}
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bool HostUartComponent::peek_byte(uint8_t *data) {
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if (this->file_descriptor_ == -1) {
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return false;
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}
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if (!this->has_peek_) {
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if (!this->check_read_timeout_()) {
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return false;
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}
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if (::read(this->file_descriptor_, &this->peek_byte_, 1) != 1) {
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this->update_error_(strerror(errno));
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return false;
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}
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this->has_peek_ = true;
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}
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*data = this->peek_byte_;
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return true;
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}
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bool HostUartComponent::read_array(uint8_t *data, size_t len) {
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if ((this->file_descriptor_ == -1) || (len == 0)) {
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return false;
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}
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if (!this->check_read_timeout_(len))
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return false;
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uint8_t *data_ptr = data;
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size_t length_to_read = len;
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if (this->has_peek_) {
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length_to_read--;
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*data_ptr = this->peek_byte_;
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data_ptr++;
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this->has_peek_ = false;
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}
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if (length_to_read > 0) {
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int sz = ::read(this->file_descriptor_, data_ptr, length_to_read);
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if (sz == -1) {
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this->update_error_(strerror(errno));
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return false;
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}
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}
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#ifdef USE_UART_DEBUGGER
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for (size_t i = 0; i < len; i++) {
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this->debug_callback_.call(UART_DIRECTION_RX, data[i]);
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}
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#endif
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return true;
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}
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int HostUartComponent::available() {
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if (this->file_descriptor_ == -1) {
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return 0;
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}
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int available;
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int res = ioctl(this->file_descriptor_, FIONREAD, &available);
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if (res == -1) {
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this->update_error_(strerror(errno));
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return 0;
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}
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if (this->has_peek_)
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available++;
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return available;
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};
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void HostUartComponent::flush() {
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if (this->file_descriptor_ == -1) {
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return;
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}
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tcflush(this->file_descriptor_, TCIOFLUSH);
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ESP_LOGV(TAG, " Flushing...");
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}
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void HostUartComponent::update_error_(const std::string &error) {
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if (this->first_error_.empty()) {
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this->first_error_ = error;
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}
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ESP_LOGE(TAG, "Port error: %s", error.c_str());
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}
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} // namespace uart
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} // namespace esphome
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#endif // USE_HOST
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38
esphome/components/uart/uart_component_host.h
Normal file
38
esphome/components/uart/uart_component_host.h
Normal file
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@ -0,0 +1,38 @@
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#pragma once
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#ifdef USE_HOST
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#include "esphome/core/component.h"
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#include "esphome/core/log.h"
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#include "uart_component.h"
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namespace esphome {
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namespace uart {
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class HostUartComponent : public UARTComponent, public Component {
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public:
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virtual ~HostUartComponent();
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void setup() override;
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void dump_config() override;
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float get_setup_priority() const override { return setup_priority::BUS; }
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void write_array(const uint8_t *data, size_t len) override;
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bool peek_byte(uint8_t *data) override;
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bool read_array(uint8_t *data, size_t len) override;
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int available() override;
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void flush() override;
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void set_name(std::string port_name) { port_name_ = port_name; };
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protected:
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void update_error_(const std::string &error);
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void check_logger_conflict() override {}
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std::string port_name_;
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std::string first_error_{""};
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int file_descriptor_ = -1;
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bool has_peek_{false};
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uint8_t peek_byte_;
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};
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} // namespace uart
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} // namespace esphome
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|
||||
#endif // USE_HOST
|
13
tests/components/uart/test.host.yaml
Normal file
13
tests/components/uart/test.host.yaml
Normal file
|
@ -0,0 +1,13 @@
|
|||
esphome:
|
||||
on_boot:
|
||||
then:
|
||||
- uart.write: 'Hello World'
|
||||
- uart.write: [0x00, 0x20, 0x42]
|
||||
|
||||
uart:
|
||||
- id: uart_uart
|
||||
port: "/dev/ttyS0"
|
||||
baud_rate: 9600
|
||||
data_bits: 8
|
||||
parity: EVEN
|
||||
stop_bits: 2
|
Loading…
Reference in a new issue