mirror of
https://github.com/esphome/esphome.git
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147 lines
4.2 KiB
Python
147 lines
4.2 KiB
Python
from esphome import pins
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import esphome.codegen as cg
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from esphome.components import audio, esp32, microphone
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from esphome.components.adc import ESP32_VARIANT_ADC1_PIN_TO_CHANNEL, validate_adc_pin
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import esphome.config_validation as cv
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from esphome.const import (
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CONF_BITS_PER_SAMPLE,
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CONF_CHANNEL,
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CONF_ID,
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CONF_NUM_CHANNELS,
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CONF_NUMBER,
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CONF_SAMPLE_RATE,
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)
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from .. import (
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CONF_I2S_DIN_PIN,
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CONF_LEFT,
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CONF_MONO,
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CONF_RIGHT,
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I2SAudioIn,
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i2s_audio_component_schema,
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i2s_audio_ns,
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register_i2s_audio_component,
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use_legacy,
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validate_mclk_divisible_by_3,
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)
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CODEOWNERS = ["@jesserockz"]
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DEPENDENCIES = ["i2s_audio"]
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CONF_ADC_PIN = "adc_pin"
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CONF_ADC_TYPE = "adc_type"
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CONF_CORRECT_DC_OFFSET = "correct_dc_offset"
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CONF_PDM = "pdm"
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I2SAudioMicrophone = i2s_audio_ns.class_(
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"I2SAudioMicrophone", I2SAudioIn, microphone.Microphone, cg.Component
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)
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INTERNAL_ADC_VARIANTS = [esp32.const.VARIANT_ESP32]
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PDM_VARIANTS = [esp32.const.VARIANT_ESP32, esp32.const.VARIANT_ESP32S3]
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def _validate_esp32_variant(config):
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variant = esp32.get_esp32_variant()
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if config[CONF_ADC_TYPE] == "external":
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if config[CONF_PDM] and variant not in PDM_VARIANTS:
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raise cv.Invalid(f"{variant} does not support PDM")
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return config
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if config[CONF_ADC_TYPE] == "internal":
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if variant not in INTERNAL_ADC_VARIANTS:
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raise cv.Invalid(f"{variant} does not have an internal ADC")
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return config
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raise NotImplementedError
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def _validate_channel(config):
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if config[CONF_CHANNEL] == CONF_MONO:
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raise cv.Invalid(f"I2S microphone does not support {CONF_MONO}.")
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return config
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def _set_num_channels_from_config(config):
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if config[CONF_CHANNEL] in (CONF_LEFT, CONF_RIGHT):
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config[CONF_NUM_CHANNELS] = 1
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else:
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config[CONF_NUM_CHANNELS] = 2
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return config
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def _set_stream_limits(config):
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audio.set_stream_limits(
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min_bits_per_sample=config.get(CONF_BITS_PER_SAMPLE),
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max_bits_per_sample=config.get(CONF_BITS_PER_SAMPLE),
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min_channels=config.get(CONF_NUM_CHANNELS),
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max_channels=config.get(CONF_NUM_CHANNELS),
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min_sample_rate=config.get(CONF_SAMPLE_RATE),
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max_sample_rate=config.get(CONF_SAMPLE_RATE),
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)(config)
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return config
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BASE_SCHEMA = microphone.MICROPHONE_SCHEMA.extend(
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i2s_audio_component_schema(
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I2SAudioMicrophone,
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default_sample_rate=16000,
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default_channel=CONF_RIGHT,
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default_bits_per_sample="32bit",
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).extend(
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{
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cv.Optional(CONF_CORRECT_DC_OFFSET, default=False): cv.boolean,
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}
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)
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).extend(cv.COMPONENT_SCHEMA)
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CONFIG_SCHEMA = cv.All(
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cv.typed_schema(
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{
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"internal": BASE_SCHEMA.extend(
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{
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cv.Required(CONF_ADC_PIN): validate_adc_pin,
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}
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),
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"external": BASE_SCHEMA.extend(
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{
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cv.Required(CONF_I2S_DIN_PIN): pins.internal_gpio_input_pin_number,
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cv.Optional(CONF_PDM, default=False): cv.boolean,
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}
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),
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},
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key=CONF_ADC_TYPE,
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),
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_validate_esp32_variant,
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_validate_channel,
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_set_num_channels_from_config,
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_set_stream_limits,
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validate_mclk_divisible_by_3,
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)
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def _final_validate(config):
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if not use_legacy() and config[CONF_ADC_TYPE] == "internal":
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raise cv.Invalid("Internal ADC is only compatible with legacy i2s driver")
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FINAL_VALIDATE_SCHEMA = _final_validate
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async def to_code(config):
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var = cg.new_Pvariable(config[CONF_ID])
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await cg.register_component(var, config)
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await register_i2s_audio_component(var, config)
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await microphone.register_microphone(var, config)
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if config[CONF_ADC_TYPE] == "internal":
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variant = esp32.get_esp32_variant()
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pin_num = config[CONF_ADC_PIN][CONF_NUMBER]
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channel = ESP32_VARIANT_ADC1_PIN_TO_CHANNEL[variant][pin_num]
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cg.add(var.set_adc_channel(channel))
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else:
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cg.add(var.set_din_pin(config[CONF_I2S_DIN_PIN]))
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cg.add(var.set_pdm(config[CONF_PDM]))
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cg.add(var.set_correct_dc_offset(config[CONF_CORRECT_DC_OFFSET]))
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