esphome/esphome/components/sn74hc165/__init__.py
2022-12-07 12:10:25 +13:00

87 lines
2.8 KiB
Python

import esphome.codegen as cg
import esphome.config_validation as cv
from esphome import pins
from esphome.const import (
CONF_ID,
CONF_MODE,
CONF_NUMBER,
CONF_INVERTED,
CONF_DATA_PIN,
CONF_CLOCK_PIN,
CONF_INPUT,
)
CODEOWNERS = ["@jesserockz"]
DEPENDENCIES = []
MULTI_CONF = True
sn74hc165_ns = cg.esphome_ns.namespace("sn74hc165")
SN74HC165Component = sn74hc165_ns.class_("SN74HC165Component", cg.Component)
SN74HC165GPIOPin = sn74hc165_ns.class_(
"SN74HC165GPIOPin", cg.GPIOPin, cg.Parented.template(SN74HC165Component)
)
CONF_SN74HC165 = "sn74hc165"
CONF_LOAD_PIN = "load_pin"
CONF_CLOCK_INHIBIT_PIN = "clock_inhibit_pin"
CONF_SR_COUNT = "sr_count"
CONFIG_SCHEMA = cv.Schema(
{
cv.Required(CONF_ID): cv.declare_id(SN74HC165Component),
cv.Required(CONF_DATA_PIN): pins.gpio_input_pin_schema,
cv.Required(CONF_CLOCK_PIN): pins.gpio_output_pin_schema,
cv.Required(CONF_LOAD_PIN): pins.gpio_output_pin_schema,
cv.Optional(CONF_CLOCK_INHIBIT_PIN): pins.gpio_output_pin_schema,
cv.Optional(CONF_SR_COUNT, default=1): cv.int_range(min=1, max=256),
}
).extend(cv.COMPONENT_SCHEMA)
async def to_code(config):
var = cg.new_Pvariable(config[CONF_ID])
await cg.register_component(var, config)
data_pin = await cg.gpio_pin_expression(config[CONF_DATA_PIN])
cg.add(var.set_data_pin(data_pin))
clock_pin = await cg.gpio_pin_expression(config[CONF_CLOCK_PIN])
cg.add(var.set_clock_pin(clock_pin))
load_pin = await cg.gpio_pin_expression(config[CONF_LOAD_PIN])
cg.add(var.set_load_pin(load_pin))
if CONF_CLOCK_INHIBIT_PIN in config:
clock_inhibit_pin = await cg.gpio_pin_expression(config[CONF_CLOCK_INHIBIT_PIN])
cg.add(var.set_clock_inhibit_pin(clock_inhibit_pin))
cg.add(var.set_sr_count(config[CONF_SR_COUNT]))
def _validate_input_mode(value):
if value is not True:
raise cv.Invalid("Only input mode is supported")
return value
SN74HC165_PIN_SCHEMA = cv.All(
{
cv.GenerateID(): cv.declare_id(SN74HC165GPIOPin),
cv.Required(CONF_SN74HC165): cv.use_id(SN74HC165Component),
cv.Required(CONF_NUMBER): cv.int_range(min=0, max=2048, max_included=False),
cv.Optional(CONF_MODE, default={}): cv.All(
{
cv.Optional(CONF_INPUT, default=True): cv.All(
cv.boolean, _validate_input_mode
),
},
),
cv.Optional(CONF_INVERTED, default=False): cv.boolean,
}
)
@pins.PIN_SCHEMA_REGISTRY.register(CONF_SN74HC165, SN74HC165_PIN_SCHEMA)
async def sn74hc165_pin_to_code(config):
var = cg.new_Pvariable(config[CONF_ID])
await cg.register_parented(var, config[CONF_SN74HC165])
cg.add(var.set_pin(config[CONF_NUMBER]))
cg.add(var.set_inverted(config[CONF_INVERTED]))
return var