Files
esphome/esphome/components/epaper_spi/display.py

235 lines
7.9 KiB
Python

import importlib
import pkgutil
from esphome import core, pins
import esphome.codegen as cg
from esphome.components import display, spi
from esphome.components.display import CONF_SHOW_TEST_CARD, validate_rotation
from esphome.components.mipi import flatten_sequence, map_sequence
import esphome.config_validation as cv
from esphome.config_validation import update_interval
from esphome.const import (
CONF_BUSY_PIN,
CONF_CS_PIN,
CONF_DATA_RATE,
CONF_DC_PIN,
CONF_DIMENSIONS,
CONF_ENABLE_PIN,
CONF_FULL_UPDATE_EVERY,
CONF_HEIGHT,
CONF_ID,
CONF_INIT_SEQUENCE,
CONF_LAMBDA,
CONF_MIRROR_X,
CONF_MIRROR_Y,
CONF_MODEL,
CONF_PAGES,
CONF_RESET_DURATION,
CONF_RESET_PIN,
CONF_ROTATION,
CONF_SWAP_XY,
CONF_TRANSFORM,
CONF_UPDATE_INTERVAL,
CONF_WIDTH,
)
from esphome.cpp_generator import RawExpression
from esphome.final_validate import full_config
from . import models
AUTO_LOAD = ["split_buffer"]
DEPENDENCIES = ["spi"]
CONF_INIT_SEQUENCE_ID = "init_sequence_id"
CONF_MINIMUM_UPDATE_INTERVAL = "minimum_update_interval"
epaper_spi_ns = cg.esphome_ns.namespace("epaper_spi")
EPaperBase = epaper_spi_ns.class_(
"EPaperBase", cg.PollingComponent, spi.SPIDevice, display.Display
)
Transform = epaper_spi_ns.enum("Transform")
EPaperSpectraE6 = epaper_spi_ns.class_("EPaperSpectraE6", EPaperBase)
EPaper7p3InSpectraE6 = epaper_spi_ns.class_("EPaper7p3InSpectraE6", EPaperSpectraE6)
# Import all models dynamically from the models package
for module_info in pkgutil.iter_modules(models.__path__):
importlib.import_module(f".models.{module_info.name}", package=__package__)
MODELS = models.EpaperModel.models
DIMENSION_SCHEMA = cv.Schema(
{
cv.Required(CONF_WIDTH): cv.int_,
cv.Required(CONF_HEIGHT): cv.int_,
}
)
TRANSFORM_OPTIONS = {CONF_MIRROR_X, CONF_MIRROR_Y, CONF_SWAP_XY}
def model_schema(config):
model = MODELS[config[CONF_MODEL]]
class_name = epaper_spi_ns.class_(model.class_name, EPaperBase)
minimum_update_interval = update_interval(
model.get_default(CONF_MINIMUM_UPDATE_INTERVAL, "1s")
)
cv_dimensions = cv.Optional if model.get_default(CONF_WIDTH) else cv.Required
return (
display.FULL_DISPLAY_SCHEMA.extend(
spi.spi_device_schema(
cs_pin_required=False,
default_mode="MODE0",
default_data_rate=model.get_default(CONF_DATA_RATE, 10_000_000),
)
)
.extend(
{
model.option(pin): pins.gpio_output_pin_schema
for pin in (CONF_RESET_PIN, CONF_CS_PIN, CONF_BUSY_PIN)
}
)
.extend(
{
cv.Optional(CONF_ROTATION, default=0): validate_rotation,
cv.Required(CONF_MODEL): cv.one_of(model.name, upper=True),
cv.Optional(CONF_UPDATE_INTERVAL, default=cv.UNDEFINED): cv.All(
update_interval, cv.Range(min=minimum_update_interval)
),
cv.Optional(CONF_TRANSFORM): cv.Schema(
{
cv.Required(CONF_MIRROR_X): cv.boolean,
cv.Required(CONF_MIRROR_Y): cv.boolean,
}
),
cv.Optional(CONF_FULL_UPDATE_EVERY, default=1): cv.int_range(1, 255),
model.option(CONF_DC_PIN, fallback=None): pins.gpio_output_pin_schema,
cv.GenerateID(): cv.declare_id(class_name),
cv.GenerateID(CONF_INIT_SEQUENCE_ID): cv.declare_id(cg.uint8),
cv_dimensions(CONF_DIMENSIONS): DIMENSION_SCHEMA,
model.option(CONF_ENABLE_PIN): cv.ensure_list(
pins.gpio_output_pin_schema
),
model.option(CONF_INIT_SEQUENCE, cv.UNDEFINED): cv.ensure_list(
map_sequence
),
model.option(CONF_RESET_DURATION, cv.UNDEFINED): cv.All(
cv.positive_time_period_milliseconds,
cv.Range(max=core.TimePeriod(milliseconds=500)),
),
}
)
)
def customise_schema(config):
"""
Create a customised config schema for a specific model and validate the configuration.
:param config: The configuration dictionary to validate
:return: The validated configuration dictionary
:raises cv.Invalid: If the configuration is invalid
"""
config = cv.Schema(
{
cv.Required(CONF_MODEL): cv.one_of(*MODELS, upper=True, space="-"),
},
extra=cv.ALLOW_EXTRA,
)(config)
return model_schema(config)(config)
CONFIG_SCHEMA = customise_schema
def _final_validate(config):
spi.final_validate_device_schema(
"epaper_spi", require_miso=False, require_mosi=True
)(config)
global_config = full_config.get()
from esphome.components.lvgl import DOMAIN as LVGL_DOMAIN
if CONF_LAMBDA not in config and CONF_PAGES not in config:
if LVGL_DOMAIN in global_config:
if CONF_UPDATE_INTERVAL not in config:
config[CONF_UPDATE_INTERVAL] = update_interval("never")
else:
# If no drawing methods are configured, and LVGL is not enabled, show a test card
config[CONF_SHOW_TEST_CARD] = True
elif CONF_UPDATE_INTERVAL not in config:
config[CONF_UPDATE_INTERVAL] = update_interval("1min")
return config
FINAL_VALIDATE_SCHEMA = _final_validate
async def to_code(config):
model = MODELS[config[CONF_MODEL]]
init_sequence = config.get(CONF_INIT_SEQUENCE)
if init_sequence is None:
init_sequence = model.get_init_sequence(config)
init_sequence = flatten_sequence(init_sequence)
init_sequence_length = len(init_sequence)
init_sequence_id = cg.static_const_array(
config[CONF_INIT_SEQUENCE_ID], init_sequence
)
width, height = model.get_dimensions(config)
var = cg.new_Pvariable(
config[CONF_ID],
model.name,
width,
height,
init_sequence_id,
init_sequence_length,
*model.get_constructor_args(config),
)
# Rotation is handled by setting the transform
display_config = {k: v for k, v in config.items() if k != CONF_ROTATION}
await display.register_display(var, display_config)
await spi.register_spi_device(var, config, write_only=True)
dc = await cg.gpio_pin_expression(config[CONF_DC_PIN])
cg.add(var.set_dc_pin(dc))
if CONF_LAMBDA in config:
lambda_ = await cg.process_lambda(
config[CONF_LAMBDA], [(display.DisplayRef, "it")], return_type=cg.void
)
cg.add(var.set_writer(lambda_))
if reset_pin := config.get(CONF_RESET_PIN):
reset = await cg.gpio_pin_expression(reset_pin)
cg.add(var.set_reset_pin(reset))
if busy_pin := config.get(CONF_BUSY_PIN):
busy = await cg.gpio_pin_expression(busy_pin)
cg.add(var.set_busy_pin(busy))
cg.add(var.set_full_update_every(config[CONF_FULL_UPDATE_EVERY]))
if CONF_RESET_DURATION in config:
cg.add(var.set_reset_duration(config[CONF_RESET_DURATION]))
if transform := config.get(CONF_TRANSFORM):
transform[CONF_SWAP_XY] = False
else:
transform = {x: model.get_default(x, False) for x in TRANSFORM_OPTIONS}
rotation = config[CONF_ROTATION]
if rotation == 180:
transform[CONF_MIRROR_X] = not transform[CONF_MIRROR_X]
transform[CONF_MIRROR_Y] = not transform[CONF_MIRROR_Y]
elif rotation == 90:
transform[CONF_SWAP_XY] = not transform[CONF_SWAP_XY]
transform[CONF_MIRROR_X] = not transform[CONF_MIRROR_X]
elif rotation == 270:
transform[CONF_SWAP_XY] = not transform[CONF_SWAP_XY]
transform[CONF_MIRROR_Y] = not transform[CONF_MIRROR_Y]
transform_str = "|".join(
{
str(getattr(Transform, x.upper()))
for x in TRANSFORM_OPTIONS
if transform.get(x)
}
)
if transform_str:
cg.add(var.set_transform(RawExpression(transform_str)))