esphome/esphome/components/esp32_can/canbus.py
Sympatron GmbH 5026bc7a78
Native ESP32 CAN support (#1629)
Co-authored-by: Guillermo Ruffino <glm.net@gmail.com>
Co-authored-by: Jesse Hills <3060199+jesserockz@users.noreply.github.com>
2022-01-12 08:54:35 +13:00

39 lines
1.3 KiB
Python

import esphome.codegen as cg
import esphome.config_validation as cv
from esphome import pins
from esphome.components import canbus
from esphome.const import CONF_ID, CONF_RX_PIN, CONF_TX_PIN
from esphome.components.canbus import CanbusComponent, CanSpeed, CONF_BIT_RATE
CODEOWNERS = ["@Sympatron"]
DEPENDENCIES = ["esp32"]
esp32_can_ns = cg.esphome_ns.namespace("esp32_can")
esp32_can = esp32_can_ns.class_("ESP32Can", CanbusComponent)
# Currently the driver only supports a subset of the bit rates defined in canbus
CAN_SPEEDS = {
"50KBPS": CanSpeed.CAN_50KBPS,
"100KBPS": CanSpeed.CAN_100KBPS,
"125KBPS": CanSpeed.CAN_125KBPS,
"250KBPS": CanSpeed.CAN_250KBPS,
"500KBPS": CanSpeed.CAN_500KBPS,
"1000KBPS": CanSpeed.CAN_1000KBPS,
}
CONFIG_SCHEMA = canbus.CANBUS_SCHEMA.extend(
{
cv.GenerateID(): cv.declare_id(esp32_can),
cv.Optional(CONF_BIT_RATE, default="125KBPS"): cv.enum(CAN_SPEEDS, upper=True),
cv.Required(CONF_RX_PIN): pins.internal_gpio_input_pin_number,
cv.Required(CONF_TX_PIN): pins.internal_gpio_output_pin_number,
}
)
async def to_code(config):
var = cg.new_Pvariable(config[CONF_ID])
await canbus.register_canbus(var, config)
cg.add(var.set_rx(config[CONF_RX_PIN]))
cg.add(var.set_tx(config[CONF_TX_PIN]))