esphome/esphomeyaml/components/display/ssd1306_spi.py

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import voluptuous as vol
from esphomeyaml import pins
from esphomeyaml.components import display, spi
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from esphomeyaml.components.spi import SPIComponent
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import esphomeyaml.config_validation as cv
from esphomeyaml.const import CONF_CS_PIN, CONF_DC_PIN, CONF_EXTERNAL_VCC, CONF_ID, CONF_LAMBDA, \
CONF_MODEL, CONF_RESET_PIN, CONF_SPI_ID
from esphomeyaml.cpp_generator import Pvariable, add, get_variable, process_lambda
from esphomeyaml.cpp_helpers import gpio_output_pin_expression, setup_component
from esphomeyaml.cpp_types import App, PollingComponent, void
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DEPENDENCIES = ['spi']
SSD1306 = display.display_ns.class_('SSD1306', PollingComponent, display.DisplayBuffer)
SPISSD1306 = display.display_ns.class_('SPISSD1306', SSD1306, spi.SPIDevice)
SSD1306Model = display.display_ns.enum('SSD1306Model')
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MODELS = {
'SSD1306_128X32': SSD1306Model.SSD1306_MODEL_128_32,
'SSD1306_128X64': SSD1306Model.SSD1306_MODEL_128_64,
'SSD1306_96X16': SSD1306Model.SSD1306_MODEL_96_16,
'SSD1306_64X48': SSD1306Model.SSD1306_MODEL_64_48,
'SH1106_128X32': SSD1306Model.SH1106_MODEL_128_32,
'SH1106_128X64': SSD1306Model.SH1106_MODEL_128_64,
'SH1106_96X16': SSD1306Model.SH1106_MODEL_96_16,
'SH1106_64X48': SSD1306Model.SH1106_MODEL_64_48,
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}
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SSD1306_MODEL = cv.one_of(*MODELS, upper=True, space="_")
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PLATFORM_SCHEMA = display.FULL_DISPLAY_PLATFORM_SCHEMA.extend({
cv.GenerateID(): cv.declare_variable_id(SPISSD1306),
cv.GenerateID(CONF_SPI_ID): cv.use_variable_id(SPIComponent),
vol.Required(CONF_CS_PIN): pins.gpio_output_pin_schema,
vol.Required(CONF_DC_PIN): pins.gpio_output_pin_schema,
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vol.Required(CONF_MODEL): SSD1306_MODEL,
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vol.Optional(CONF_RESET_PIN): pins.gpio_output_pin_schema,
vol.Optional(CONF_EXTERNAL_VCC): cv.boolean,
}).extend(cv.COMPONENT_SCHEMA.schema)
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def to_code(config):
for spi_ in get_variable(config[CONF_SPI_ID]):
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yield
for cs in gpio_output_pin_expression(config[CONF_CS_PIN]):
yield
for dc in gpio_output_pin_expression(config[CONF_DC_PIN]):
yield
rhs = App.make_spi_ssd1306(spi_, cs, dc)
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ssd = Pvariable(config[CONF_ID], rhs)
add(ssd.set_model(MODELS[config[CONF_MODEL]]))
if CONF_RESET_PIN in config:
for reset in gpio_output_pin_expression(config[CONF_RESET_PIN]):
yield
add(ssd.set_reset_pin(reset))
if CONF_EXTERNAL_VCC in config:
add(ssd.set_external_vcc(config[CONF_EXTERNAL_VCC]))
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if CONF_LAMBDA in config:
for lambda_ in process_lambda(config[CONF_LAMBDA],
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[(display.DisplayBufferRef, 'it')], return_type=void):
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yield
add(ssd.set_writer(lambda_))
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display.setup_display(ssd, config)
setup_component(ssd, config)
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BUILD_FLAGS = '-DUSE_SSD1306'