mirror of https://github.com/esphome/esphome.git
77 lines
2.7 KiB
Python
77 lines
2.7 KiB
Python
import voluptuous as vol
|
|
|
|
from esphomeyaml import pins
|
|
from esphomeyaml.components import display
|
|
import esphomeyaml.config_validation as cv
|
|
from esphomeyaml.const import CONF_DATA_PINS, CONF_DIMENSIONS, CONF_ENABLE_PIN, CONF_ID, \
|
|
CONF_LAMBDA, CONF_RS_PIN, CONF_RW_PIN
|
|
from esphomeyaml.cpp_generator import Pvariable, add, process_lambda
|
|
from esphomeyaml.cpp_helpers import gpio_output_pin_expression, setup_component
|
|
from esphomeyaml.cpp_types import App, PollingComponent, void
|
|
|
|
LCDDisplay = display.display_ns.class_('LCDDisplay', PollingComponent)
|
|
LCDDisplayRef = LCDDisplay.operator('ref')
|
|
GPIOLCDDisplay = display.display_ns.class_('GPIOLCDDisplay', LCDDisplay)
|
|
|
|
|
|
def validate_lcd_dimensions(value):
|
|
value = cv.dimensions(value)
|
|
if value[0] > 0x40:
|
|
raise vol.Invalid("LCD displays can't have more than 64 columns")
|
|
if value[1] > 4:
|
|
raise vol.Invalid("LCD displays can't have more than 4 rows")
|
|
return value
|
|
|
|
|
|
def validate_pin_length(value):
|
|
if len(value) != 4 and len(value) != 8:
|
|
raise vol.Invalid("LCD Displays can either operate in 4-pin or 8-pin mode,"
|
|
"not {}-pin mode".format(len(value)))
|
|
return value
|
|
|
|
|
|
PLATFORM_SCHEMA = display.BASIC_DISPLAY_PLATFORM_SCHEMA.extend({
|
|
cv.GenerateID(): cv.declare_variable_id(GPIOLCDDisplay),
|
|
vol.Required(CONF_DIMENSIONS): validate_lcd_dimensions,
|
|
|
|
vol.Required(CONF_DATA_PINS): vol.All([pins.gpio_output_pin_schema], validate_pin_length),
|
|
vol.Required(CONF_ENABLE_PIN): pins.gpio_output_pin_schema,
|
|
vol.Required(CONF_RS_PIN): pins.gpio_output_pin_schema,
|
|
vol.Optional(CONF_RW_PIN): pins.gpio_output_pin_schema,
|
|
}).extend(cv.COMPONENT_SCHEMA.schema)
|
|
|
|
|
|
def to_code(config):
|
|
rhs = App.make_gpio_lcd_display(config[CONF_DIMENSIONS][0], config[CONF_DIMENSIONS][1])
|
|
lcd = Pvariable(config[CONF_ID], rhs)
|
|
pins_ = []
|
|
for conf in config[CONF_DATA_PINS]:
|
|
for pin in gpio_output_pin_expression(conf):
|
|
yield
|
|
pins_.append(pin)
|
|
add(lcd.set_data_pins(*pins_))
|
|
for enable in gpio_output_pin_expression(config[CONF_ENABLE_PIN]):
|
|
yield
|
|
add(lcd.set_enable_pin(enable))
|
|
|
|
for rs in gpio_output_pin_expression(config[CONF_RS_PIN]):
|
|
yield
|
|
add(lcd.set_rs_pin(rs))
|
|
|
|
if CONF_RW_PIN in config:
|
|
for rw in gpio_output_pin_expression(config[CONF_RW_PIN]):
|
|
yield
|
|
add(lcd.set_rw_pin(rw))
|
|
|
|
if CONF_LAMBDA in config:
|
|
for lambda_ in process_lambda(config[CONF_LAMBDA], [(LCDDisplayRef, 'it')],
|
|
return_type=void):
|
|
yield
|
|
add(lcd.set_writer(lambda_))
|
|
|
|
display.setup_display(lcd, config)
|
|
setup_component(lcd, config)
|
|
|
|
|
|
BUILD_FLAGS = '-DUSE_LCD_DISPLAY'
|