mirror of
https://github.com/esphome/esphome.git
synced 2025-03-28 05:28:14 +00:00
77 lines
2.3 KiB
Python
77 lines
2.3 KiB
Python
from esphome import pins
|
|
import esphome.codegen as cg
|
|
from esphome.components import i2c
|
|
from esphome.components.i2c import I2CBus
|
|
import esphome.config_validation as cv
|
|
from esphome.const import (
|
|
CONF_I2C_ID,
|
|
CONF_ID,
|
|
CONF_INPUT,
|
|
CONF_INVERTED,
|
|
CONF_MODE,
|
|
CONF_NUMBER,
|
|
CONF_OPEN_DRAIN,
|
|
CONF_OUTPUT,
|
|
)
|
|
|
|
CODEOWNERS = ["@jesterret", "@clydebarrow"]
|
|
DEPENDENCIES = ["i2c"]
|
|
MULTI_CONF = True
|
|
ch422g_ns = cg.esphome_ns.namespace("ch422g")
|
|
|
|
CH422GComponent = ch422g_ns.class_("CH422GComponent", cg.Component, i2c.I2CDevice)
|
|
CH422GGPIOPin = ch422g_ns.class_(
|
|
"CH422GGPIOPin", cg.GPIOPin, cg.Parented.template(CH422GComponent)
|
|
)
|
|
|
|
CONF_CH422G = "ch422g"
|
|
|
|
# Note that no address is configurable - each register in the CH422G has a dedicated i2c address
|
|
CONFIG_SCHEMA = cv.Schema(
|
|
{
|
|
cv.GenerateID(CONF_ID): cv.declare_id(CH422GComponent),
|
|
cv.GenerateID(CONF_I2C_ID): cv.use_id(I2CBus),
|
|
}
|
|
).extend(cv.COMPONENT_SCHEMA)
|
|
|
|
|
|
async def to_code(config):
|
|
var = cg.new_Pvariable(config[CONF_ID])
|
|
await cg.register_component(var, config)
|
|
# Can't use register_i2c_device because there is no CONF_ADDRESS
|
|
parent = await cg.get_variable(config[CONF_I2C_ID])
|
|
cg.add(var.set_i2c_bus(parent))
|
|
|
|
|
|
# This is used as a final validation step so that modes have been fully transformed.
|
|
def pin_mode_check(pin_config, _):
|
|
if pin_config[CONF_MODE][CONF_INPUT] and pin_config[CONF_NUMBER] >= 8:
|
|
raise cv.Invalid("CH422G only supports input on pins 0-7")
|
|
if pin_config[CONF_MODE][CONF_OPEN_DRAIN] and pin_config[CONF_NUMBER] < 8:
|
|
raise cv.Invalid("CH422G only supports open drain output on pins 8-11")
|
|
|
|
|
|
CH422G_PIN_SCHEMA = pins.gpio_base_schema(
|
|
CH422GGPIOPin,
|
|
cv.int_range(min=0, max=11),
|
|
modes=[CONF_INPUT, CONF_OUTPUT, CONF_OPEN_DRAIN],
|
|
).extend(
|
|
{
|
|
cv.Required(CONF_CH422G): cv.use_id(CH422GComponent),
|
|
}
|
|
)
|
|
|
|
|
|
@pins.PIN_SCHEMA_REGISTRY.register(CONF_CH422G, CH422G_PIN_SCHEMA, pin_mode_check)
|
|
async def ch422g_pin_to_code(config):
|
|
var = cg.new_Pvariable(config[CONF_ID])
|
|
parent = await cg.get_variable(config[CONF_CH422G])
|
|
|
|
cg.add(var.set_parent(parent))
|
|
|
|
num = config[CONF_NUMBER]
|
|
cg.add(var.set_pin(num))
|
|
cg.add(var.set_inverted(config[CONF_INVERTED]))
|
|
cg.add(var.set_flags(pins.gpio_flags_expr(config[CONF_MODE])))
|
|
return var
|