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https://github.com/Threnklyn/esphome-dev.git
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igg
821c1a8bbd
* making SPI CS optional * CS pin should be declared as optional or required in CONFIG_SCHEMA * changed SPI_DEVICE_SCHEMA to a function, like i2c * added spi_device_schema() to pcd8544, lint fixes * updated max31856 with new spi_device_schema() * cleanup imports Co-authored-by: Ilya Goldberg <iggie@mac.com>
59 lines
2.0 KiB
Python
59 lines
2.0 KiB
Python
import esphome.codegen as cg
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import esphome.config_validation as cv
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from esphome import pins
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from esphome.const import CONF_CLK_PIN, CONF_ID, CONF_MISO_PIN, CONF_MOSI_PIN, CONF_SPI_ID, \
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CONF_CS_PIN
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from esphome.core import coroutine, coroutine_with_priority
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spi_ns = cg.esphome_ns.namespace('spi')
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SPIComponent = spi_ns.class_('SPIComponent', cg.Component)
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SPIDevice = spi_ns.class_('SPIDevice')
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MULTI_CONF = True
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CONFIG_SCHEMA = cv.All(cv.Schema({
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cv.GenerateID(): cv.declare_id(SPIComponent),
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cv.Required(CONF_CLK_PIN): pins.gpio_output_pin_schema,
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cv.Optional(CONF_MISO_PIN): pins.gpio_input_pin_schema,
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cv.Optional(CONF_MOSI_PIN): pins.gpio_output_pin_schema,
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}), cv.has_at_least_one_key(CONF_MISO_PIN, CONF_MOSI_PIN))
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@coroutine_with_priority(1.0)
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def to_code(config):
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cg.add_global(spi_ns.using)
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var = cg.new_Pvariable(config[CONF_ID])
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yield cg.register_component(var, config)
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clk = yield cg.gpio_pin_expression(config[CONF_CLK_PIN])
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cg.add(var.set_clk(clk))
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if CONF_MISO_PIN in config:
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miso = yield cg.gpio_pin_expression(config[CONF_MISO_PIN])
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cg.add(var.set_miso(miso))
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if CONF_MOSI_PIN in config:
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mosi = yield cg.gpio_pin_expression(config[CONF_MOSI_PIN])
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cg.add(var.set_mosi(mosi))
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def spi_device_schema(CS_PIN_required=False):
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"""Create a schema for an SPI device.
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:param CS_PIN_required: If true, make the CS_PIN required in the config.
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:return: The SPI device schema, `extend` this in your config schema.
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"""
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schema = {
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cv.GenerateID(CONF_SPI_ID): cv.use_id(SPIComponent),
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}
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if CS_PIN_required:
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schema[cv.Required(CONF_CS_PIN)] = pins.gpio_output_pin_schema
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else:
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schema[cv.Optional(CONF_CS_PIN)] = pins.gpio_output_pin_schema
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return cv.Schema(schema)
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@coroutine
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def register_spi_device(var, config):
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parent = yield cg.get_variable(config[CONF_SPI_ID])
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cg.add(var.set_spi_parent(parent))
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if CONF_CS_PIN in config:
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pin = yield cg.gpio_pin_expression(config[CONF_CS_PIN])
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cg.add(var.set_cs_pin(pin))
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