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78 lines
2.6 KiB
Python
78 lines
2.6 KiB
Python
import esphome.codegen as cg
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from esphome.components import time as time_
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import esphome.config_validation as cv
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from esphome.const import (
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CONF_ID,
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CONF_SERVERS,
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PLATFORM_BK72XX,
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PLATFORM_ESP32,
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PLATFORM_ESP8266,
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PLATFORM_LN882X,
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PLATFORM_RP2040,
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PLATFORM_RTL87XX,
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)
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from esphome.core import CORE
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from esphome.cpp_generator import ProgmemAssignmentExpression
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DEPENDENCIES = ["network"]
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sntp_ns = cg.esphome_ns.namespace("sntp")
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SNTPComponent = sntp_ns.class_("SNTPComponent", time_.RealTimeClock)
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DEFAULT_SERVERS = ["0.pool.ntp.org", "1.pool.ntp.org", "2.pool.ntp.org"]
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CONFIG_SCHEMA = cv.All(
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time_.TIME_SCHEMA.extend(
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{
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cv.GenerateID(): cv.declare_id(SNTPComponent),
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cv.Optional(CONF_SERVERS, default=DEFAULT_SERVERS): cv.All(
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cv.ensure_list(cv.Any(cv.domain, cv.hostname)), cv.Length(min=1, max=3)
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),
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}
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).extend(cv.COMPONENT_SCHEMA),
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cv.only_on(
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[
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PLATFORM_ESP32,
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PLATFORM_ESP8266,
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PLATFORM_RP2040,
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PLATFORM_BK72XX,
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PLATFORM_LN882X,
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PLATFORM_RTL87XX,
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]
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),
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)
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async def to_code(config):
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servers = config[CONF_SERVERS]
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server_count = len(servers)
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# Define server count at compile time
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cg.add_define("SNTP_SERVER_COUNT", server_count)
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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 time_.register_time(var, config)
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# Generate PROGMEM strings for ESP8266, regular strings for other platforms
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if CORE.is_esp8266:
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# On ESP8266, use PROGMEM to store strings in flash
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# Use ProgmemAssignmentExpression to generate: static const char name[] PROGMEM = "value";
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for i, server in enumerate(servers):
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var_name = f"{config[CONF_ID].id}_server_{i}"
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# Create PROGMEM string: static const char var_name[] PROGMEM = "server";
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assignment = ProgmemAssignmentExpression(
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"char", var_name, cg.safe_exp(server)
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)
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cg.add(assignment)
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# Assign pointer to array element
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cg.add(cg.RawStatement(f"{var}->servers_[{i}] = {var_name};"))
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else:
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# On other platforms, use regular string literals
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for i, server in enumerate(servers):
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cg.add(cg.RawStatement(f"{var}->servers_[{i}] = {cg.safe_exp(server)};"))
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if CORE.is_esp8266 and len(servers) > 1:
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# We need LwIP features enabled to get 3 SNTP servers (not just one)
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cg.add_build_flag("-DPIO_FRAMEWORK_ARDUINO_LWIP2_LOW_MEMORY")
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