Add HLK-LD2420 mmWave Radar module component (#4847)

Co-authored-by: descipher <120155735+GelidusResearch@users.noreply.github.com>

esphome/components/ld2420/button/__init__.py

@@ -0,0 +1,69 @@
+import esphome.codegen as cg
+from esphome.components import button
+import esphome.config_validation as cv
+from esphome.const import (
+    DEVICE_CLASS_RESTART,
+    ENTITY_CATEGORY_DIAGNOSTIC,
+    ENTITY_CATEGORY_CONFIG,
+    ICON_RESTART,
+    ICON_RESTART_ALERT,
+    ICON_DATABASE,
+)
+from .. import CONF_LD2420_ID, LD2420Component, ld2420_ns
+
+LD2420ApplyConfigButton = ld2420_ns.class_("LD2420ApplyConfigButton", button.Button)
+LD2420RevertConfigButton = ld2420_ns.class_("LD2420RevertConfigButton", button.Button)
+LD2420RestartModuleButton = ld2420_ns.class_("LD2420RestartModuleButton", button.Button)
+LD2420FactoryResetButton = ld2420_ns.class_("LD2420FactoryResetButton", button.Button)
+
+CONF_APPLY_CONFIG = "apply_config"
+CONF_REVERT_CONFIG = "revert_config"
+CONF_RESTART_MODULE = "restart_module"
+CONF_FACTORY_RESET = "factory_reset"
+
+
+CONFIG_SCHEMA = {
+    cv.GenerateID(CONF_LD2420_ID): cv.use_id(LD2420Component),
+    cv.Required(CONF_APPLY_CONFIG): button.button_schema(
+        LD2420ApplyConfigButton,
+        device_class=DEVICE_CLASS_RESTART,
+        entity_category=ENTITY_CATEGORY_CONFIG,
+        icon=ICON_RESTART_ALERT,
+    ),
+    cv.Optional(CONF_REVERT_CONFIG): button.button_schema(
+        LD2420RevertConfigButton,
+        device_class=DEVICE_CLASS_RESTART,
+        entity_category=ENTITY_CATEGORY_CONFIG,
+        icon=ICON_RESTART,
+    ),
+    cv.Optional(CONF_RESTART_MODULE): button.button_schema(
+        LD2420RestartModuleButton,
+        entity_category=ENTITY_CATEGORY_DIAGNOSTIC,
+        icon=ICON_DATABASE,
+    ),
+    cv.Optional(CONF_FACTORY_RESET): button.button_schema(
+        LD2420FactoryResetButton,
+        entity_category=ENTITY_CATEGORY_CONFIG,
+        icon=ICON_DATABASE,
+    ),
+}
+
+
+async def to_code(config):
+    ld2420_component = await cg.get_variable(config[CONF_LD2420_ID])
+    if apply_config := config.get(CONF_APPLY_CONFIG):
+        b = await button.new_button(apply_config)
+        await cg.register_parented(b, config[CONF_LD2420_ID])
+        cg.add(ld2420_component.set_apply_config_button(b))
+    if revert_config := config.get(CONF_REVERT_CONFIG):
+        b = await button.new_button(revert_config)
+        await cg.register_parented(b, config[CONF_LD2420_ID])
+        cg.add(ld2420_component.set_revert_config_button(b))
+    if restart_config := config.get(CONF_RESTART_MODULE):
+        b = await button.new_button(restart_config)
+        await cg.register_parented(b, config[CONF_LD2420_ID])
+        cg.add(ld2420_component.set_restart_module_button(b))
+    if factory_reset := config.get(CONF_FACTORY_RESET):
+        b = await button.new_button(factory_reset)
+        await cg.register_parented(b, config[CONF_LD2420_ID])
+        cg.add(ld2420_component.set_factory_reset_button(b))

esphome/components/ld2420/button/reconfig_buttons.cpp

@@ -0,0 +1,16 @@
+#include "reconfig_buttons.h"
+#include "esphome/core/helpers.h"
+#include "esphome/core/log.h"
+
+static const char *const TAG = "LD2420.button";
+
+namespace esphome {
+namespace ld2420 {
+
+void LD2420ApplyConfigButton::press_action() { this->parent_->apply_config_action(); }
+void LD2420RevertConfigButton::press_action() { this->parent_->revert_config_action(); }
+void LD2420RestartModuleButton::press_action() { this->parent_->restart_module_action(); }
+void LD2420FactoryResetButton::press_action() { this->parent_->factory_reset_action(); }
+
+}  // namespace ld2420
+}  // namespace esphome

esphome/components/ld2420/button/reconfig_buttons.h

@@ -0,0 +1,42 @@
+#pragma once
+
+#include "esphome/components/button/button.h"
+#include "../ld2420.h"
+
+namespace esphome {
+namespace ld2420 {
+
+class LD2420ApplyConfigButton : public button::Button, public Parented<LD2420Component> {
+ public:
+  LD2420ApplyConfigButton() = default;
+
+ protected:
+  void press_action() override;
+};
+
+class LD2420RevertConfigButton : public button::Button, public Parented<LD2420Component> {
+ public:
+  LD2420RevertConfigButton() = default;
+
+ protected:
+  void press_action() override;
+};
+
+class LD2420RestartModuleButton : public button::Button, public Parented<LD2420Component> {
+ public:
+  LD2420RestartModuleButton() = default;
+
+ protected:
+  void press_action() override;
+};
+
+class LD2420FactoryResetButton : public button::Button, public Parented<LD2420Component> {
+ public:
+  LD2420FactoryResetButton() = default;
+
+ protected:
+  void press_action() override;
+};
+
+}  // namespace ld2420
+}  // namespace esphome