mirror of https://github.com/esphome/esphome.git
68 lines
2.6 KiB
Python
68 lines
2.6 KiB
Python
from esphome import pins, automation
|
|
from esphome.components import output
|
|
import esphome.config_validation as cv
|
|
import esphome.codegen as cg
|
|
from esphome.const import CONF_BIT_DEPTH, CONF_CHANNEL, CONF_FREQUENCY, \
|
|
CONF_ID, CONF_PIN, ESP_PLATFORM_ESP32
|
|
|
|
ESP_PLATFORMS = [ESP_PLATFORM_ESP32]
|
|
|
|
|
|
def calc_max_frequency(bit_depth):
|
|
return 80e6 / (2**bit_depth)
|
|
|
|
|
|
def calc_min_frequency(bit_depth):
|
|
max_div_num = ((2**20) - 1) / 256.0
|
|
return 80e6 / (max_div_num * (2**bit_depth))
|
|
|
|
|
|
def validate_frequency(value):
|
|
value = cv.frequency(value)
|
|
min_freq = calc_min_frequency(20)
|
|
max_freq = calc_max_frequency(1)
|
|
if value < min_freq:
|
|
raise cv.Invalid("This frequency setting is not possible, please choose a higher "
|
|
"frequency (at least {}Hz)".format(int(min_freq)))
|
|
if value > max_freq:
|
|
raise cv.Invalid("This frequency setting is not possible, please choose a lower "
|
|
"frequency (at most {}Hz)".format(int(max_freq)))
|
|
return value
|
|
|
|
|
|
ledc_ns = cg.esphome_ns.namespace('ledc')
|
|
LEDCOutput = ledc_ns.class_('LEDCOutput', output.FloatOutput, cg.Component)
|
|
SetFrequencyAction = ledc_ns.class_('SetFrequencyAction', automation.Action)
|
|
|
|
CONFIG_SCHEMA = output.FLOAT_OUTPUT_SCHEMA.extend({
|
|
cv.Required(CONF_ID): cv.declare_id(LEDCOutput),
|
|
cv.Required(CONF_PIN): pins.internal_gpio_output_pin_schema,
|
|
cv.Optional(CONF_FREQUENCY, default='1kHz'): cv.frequency,
|
|
cv.Optional(CONF_CHANNEL): cv.int_range(min=0, max=15),
|
|
|
|
cv.Optional(CONF_BIT_DEPTH): cv.invalid("The bit_depth option has been removed in v1.14, the "
|
|
"best bit depth is now automatically calculated."),
|
|
}).extend(cv.COMPONENT_SCHEMA)
|
|
|
|
|
|
def to_code(config):
|
|
gpio = yield cg.gpio_pin_expression(config[CONF_PIN])
|
|
var = cg.new_Pvariable(config[CONF_ID], gpio)
|
|
yield cg.register_component(var, config)
|
|
yield output.register_output(var, config)
|
|
if CONF_CHANNEL in config:
|
|
cg.add(var.set_channel(config[CONF_CHANNEL]))
|
|
cg.add(var.set_frequency(config[CONF_FREQUENCY]))
|
|
|
|
|
|
@automation.register_action('output.ledc.set_frequency', SetFrequencyAction, cv.Schema({
|
|
cv.Required(CONF_ID): cv.use_id(LEDCOutput),
|
|
cv.Required(CONF_FREQUENCY): cv.templatable(validate_frequency),
|
|
}))
|
|
def ledc_set_frequency_to_code(config, action_id, template_arg, args):
|
|
paren = yield cg.get_variable(config[CONF_ID])
|
|
var = cg.new_Pvariable(action_id, template_arg, paren)
|
|
template_ = yield cg.templatable(config[CONF_FREQUENCY], args, float)
|
|
cg.add(var.set_frequency(template_))
|
|
yield var
|