feat(power): switch to physical power-key shutdown control

components/control_plane/src/control_plane_lifecycle.c

@@ -6,11 +6,23 @@
 #include "esp_timer.h"
 #include "domain.h"
 #include "freertos/FreeRTOS.h"
+#include "freertos/queue.h"
 #include "freertos/semphr.h"
 #include "freertos/task.h"
 
 static const char *TAG = "control_plane_lifecycle";
 static SemaphoreHandle_t s_lock;
+static QueueHandle_t s_power_key_queue;
+static TaskHandle_t s_power_key_task;
+
+typedef enum {
+    POWER_KEY_CMD_SHUTDOWN_REQUEST = 0,
+} power_key_cmd_t;
+
+static const uint16_t POWER_KEY_QUEUE_LEN = 4;
+static const uint16_t POWER_KEY_TASK_STACK = 4096;
+static const uint16_t POWER_KEY_STOP_RETRY_COUNT = 30;
+static const uint16_t POWER_KEY_STOP_RETRY_INTERVAL_MS = 100;
 typedef struct {
     control_plane_lifecycle_state_t state;
     esp_err_t last_error;
@@ -96,6 +108,89 @@ static esp_err_t lifecycle_stop_system_runtime(void) {
     return system_runtime_shutdown();
 }
 
+static void lifecycle_power_key_event_cb(domain_power_event_t event, void *user_data) {
+    (void)user_data;
+    if (event != DOMAIN_POWER_EVENT_SHUTDOWN_REQUEST || s_power_key_queue == NULL) {
+        return;
+    }
+
+    power_key_cmd_t cmd = POWER_KEY_CMD_SHUTDOWN_REQUEST;
+    BaseType_t queued = xQueueSend(s_power_key_queue, &cmd, 0);
+    if (queued == pdTRUE) {
+        return;
+    }
+
+    power_key_cmd_t dropped = POWER_KEY_CMD_SHUTDOWN_REQUEST;
+    (void)xQueueReceive(s_power_key_queue, &dropped, 0);
+    (void)xQueueSend(s_power_key_queue, &cmd, 0);
+}
+
+static void lifecycle_power_key_task_main(void *arg) {
+    (void)arg;
+
+    while (true) {
+        power_key_cmd_t cmd = POWER_KEY_CMD_SHUTDOWN_REQUEST;
+        if (xQueueReceive(s_power_key_queue, &cmd, portMAX_DELAY) != pdTRUE) {
+            continue;
+        }
+
+        if (cmd != POWER_KEY_CMD_SHUTDOWN_REQUEST) {
+            continue;
+        }
+
+        ESP_LOGW(TAG, "POWER_KEY long press detected: stopping services and powering off");
+
+        esp_err_t stop_rc = ESP_ERR_INVALID_STATE;
+        for (uint16_t attempt = 0; attempt < POWER_KEY_STOP_RETRY_COUNT; ++attempt) {
+            stop_rc = control_plane_lifecycle_stop();
+            if (stop_rc != ESP_ERR_INVALID_STATE) {
+                break;
+            }
+            vTaskDelay(pdMS_TO_TICKS(POWER_KEY_STOP_RETRY_INTERVAL_MS));
+        }
+        if (stop_rc != ESP_OK && stop_rc != ESP_ERR_INVALID_STATE) {
+            ESP_LOGW(TAG, "lifecycle stop during power-off failed: %s", esp_err_to_name(stop_rc));
+        }
+
+        // Keep a tiny gap so last logs/stop actions can flush before hold release.
+        vTaskDelay(pdMS_TO_TICKS(50));
+
+        esp_err_t power_rc = system_runtime_power_off();
+        if (power_rc != ESP_OK && power_rc != ESP_ERR_NOT_SUPPORTED) {
+            ESP_LOGE(TAG, "system runtime power-off failed: %s", esp_err_to_name(power_rc));
+        }
+    }
+}
+
+static esp_err_t lifecycle_power_key_worker_init(void) {
+    if (s_power_key_queue == NULL) {
+        s_power_key_queue = xQueueCreate(POWER_KEY_QUEUE_LEN, sizeof(power_key_cmd_t));
+        if (s_power_key_queue == NULL) {
+            return ESP_ERR_NO_MEM;
+        }
+    }
+
+    if (s_power_key_task == NULL) {
+        BaseType_t ok = xTaskCreate(lifecycle_power_key_task_main,
+                                    "power_key_ctrl",
+                                    POWER_KEY_TASK_STACK,
+                                    NULL,
+                                    5,
+                                    &s_power_key_task);
+        if (ok != pdPASS) {
+            vQueueDelete(s_power_key_queue);
+            s_power_key_queue = NULL;
+            return ESP_ERR_NO_MEM;
+        }
+    }
+
+    return system_runtime_set_power_event_callback(lifecycle_power_key_event_cb, NULL);
+}
+
+static void lifecycle_power_key_worker_unbind(void) {
+    (void)system_runtime_set_power_event_callback(NULL, NULL);
+}
+
 typedef esp_err_t (*lifecycle_step_fn_t)(void);
 
 static esp_err_t lifecycle_run_step_with_retry(const char *stage, lifecycle_step_fn_t fn) {
@@ -162,6 +257,12 @@ esp_err_t control_plane_lifecycle_start(void) {
     }
     system_started = true;
 
+    failed_stage = "power_key_binding";
+    rc = lifecycle_power_key_worker_init();
+    if (rc != ESP_OK) {
+        goto start_failed;
+    }
+
     failed_stage = "printer_protocol";
     rc = lifecycle_run_step_with_retry("printer_protocol", lifecycle_start_printer_protocol);
     if (rc != ESP_OK) {
@@ -194,6 +295,7 @@ start_failed:
         (void)lifecycle_stop_printer_protocol();
     }
     if (system_started) {
+        lifecycle_power_key_worker_unbind();
         (void)lifecycle_stop_system_runtime();
     }
 
@@ -228,6 +330,8 @@ esp_err_t control_plane_lifecycle_stop(void) {
     lifecycle_set_state_locked(CONTROL_PLANE_LIFECYCLE_STATE_STOPPING, ESP_OK, "stopping");
     xSemaphoreGive(s_lock);
 
+    lifecycle_power_key_worker_unbind();
+
     esp_err_t first_err = ESP_OK;
 
     esp_err_t rc = lifecycle_stop_voice();

components/domain/include/domain.h

@@ -15,6 +15,15 @@ esp_err_t system_runtime_start(void);
 esp_err_t system_runtime_shutdown(void);
 esp_err_t system_runtime_bootstrap(void);
 
+typedef enum {
+    DOMAIN_POWER_EVENT_SHUTDOWN_REQUEST = 0,
+} domain_power_event_t;
+
+typedef void (*domain_power_event_cb_t)(domain_power_event_t event, void *user_data);
+
+esp_err_t system_runtime_set_power_event_callback(domain_power_event_cb_t cb, void *user_data);
+esp_err_t system_runtime_power_off(void);
+
 bool system_runtime_wifi_ready(void);
 void system_runtime_get_ip(char *buf, size_t buf_len);
 

components/domain/src/system_runtime.c

@@ -4,12 +4,60 @@
 #include <stdio.h>
 
 #include "esp_log.h"
+#include "freertos/FreeRTOS.h"
 
 static const char *TAG = "system_runtime";
 
 #define SYSTEM_RUNTIME_WIFI_HINT_TIMEOUT_MS 220
 
 static bool s_wifi_hint_shown;
+static bool s_power_key_ready;
+static domain_power_event_cb_t s_power_event_cb;
+static void *s_power_event_user_data;
+static portMUX_TYPE s_power_event_lock = portMUX_INITIALIZER_UNLOCKED;
+
+static void system_runtime_dispatch_power_event(domain_power_event_t event) {
+    domain_power_event_cb_t cb = NULL;
+    void *user_data = NULL;
+
+    portENTER_CRITICAL(&s_power_event_lock);
+    cb = s_power_event_cb;
+    user_data = s_power_event_user_data;
+    portEXIT_CRITICAL(&s_power_event_lock);
+
+    if (cb != NULL) {
+        cb(event, user_data);
+    }
+}
+
+static void system_runtime_power_key_platform_cb(platform_power_key_event_t event, void *user_data) {
+    (void)user_data;
+    if (event == PLATFORM_POWER_KEY_EVENT_LONG_PRESS) {
+        system_runtime_dispatch_power_event(DOMAIN_POWER_EVENT_SHUTDOWN_REQUEST);
+    }
+}
+
+static esp_err_t system_runtime_power_key_init(void) {
+    if (s_power_key_ready) {
+        return ESP_OK;
+    }
+
+    esp_err_t err = platform_power_key_init();
+    if (err != ESP_OK) {
+        ESP_LOGE(TAG, "platform_power_key_init failed: %s", esp_err_to_name(err));
+        return err;
+    }
+
+    err = platform_power_key_set_event_callback(system_runtime_power_key_platform_cb, NULL);
+    if (err != ESP_OK) {
+        ESP_LOGE(TAG, "platform_power_key_set_event_callback failed: %s", esp_err_to_name(err));
+        platform_power_key_deinit();
+        return err;
+    }
+
+    s_power_key_ready = true;
+    return ESP_OK;
+}
 
 static void system_runtime_show_wifi_hint(void) {
     if (s_wifi_hint_shown) {
@@ -60,6 +108,11 @@ esp_err_t system_runtime_start(void) {
         return err;
     }
 
+    err = system_runtime_power_key_init();
+    if (err != ESP_OK) {
+        return err;
+    }
+
     s_wifi_hint_shown = false;
     (void)wifi_manager_set_event_callback(system_runtime_wifi_event_handler, NULL);
     system_runtime_try_show_wifi_hint_for_unprovisioned();
@@ -75,10 +128,28 @@ esp_err_t system_runtime_start(void) {
 }
 
 esp_err_t system_runtime_shutdown(void) {
+    if (s_power_key_ready) {
+        platform_power_key_deinit();
+        s_power_key_ready = false;
+    }
+
     (void)wifi_manager_set_event_callback(NULL, NULL);
     return wifi_manager_stop();
 }
 
+esp_err_t system_runtime_set_power_event_callback(domain_power_event_cb_t cb, void *user_data) {
+    portENTER_CRITICAL(&s_power_event_lock);
+    s_power_event_cb = cb;
+    s_power_event_user_data = user_data;
+    portEXIT_CRITICAL(&s_power_event_lock);
+    return ESP_OK;
+}
+
+esp_err_t system_runtime_power_off(void) {
+    ESP_LOGW(TAG, "system power-off requested: releasing POWER_HOLD");
+    return platform_power_hold_set(false);
+}
+
 esp_err_t system_runtime_bootstrap(void) {
     return system_runtime_start();
 }

components/platform/CMakeLists.txt

@@ -8,6 +8,7 @@ idf_component_register(
         "src/display_lcd_decode_image.c"
         "src/display_st7789p3.c"
         "src/platform_mic_key.c"
+        "src/platform_power_key.c"
         "src/voice_audio.c"
         "src/runtime_policy.c"
     INCLUDE_DIRS

components/platform/include/platform.h

@@ -90,6 +90,21 @@ esp_err_t platform_mic_key_init(void);
 void platform_mic_key_deinit(void);
 esp_err_t platform_mic_key_set_event_callback(platform_mic_key_event_cb_t cb, void *user_data);
 
+// ---------- power_key ----------
+typedef enum {
+    PLATFORM_POWER_KEY_EVENT_LONG_PRESS = 0,
+    PLATFORM_POWER_KEY_EVENT_PRESS_UP,
+} platform_power_key_event_t;
+
+typedef void (*platform_power_key_event_cb_t)(platform_power_key_event_t event, void *user_data);
+
+esp_err_t platform_power_key_init(void);
+void platform_power_key_deinit(void);
+esp_err_t platform_power_key_set_event_callback(platform_power_key_event_cb_t cb, void *user_data);
+
+// Controls the board hold line: true keeps power on, false releases hold.
+esp_err_t platform_power_hold_set(bool hold_on);
+
 // ---------- voice_audio ----------
 typedef struct {
     uint32_t sample_rate;

components/platform/src/platform_bootstrap.c

@@ -239,3 +239,23 @@ esp_err_t platform_bootstrap_init(void) {
     s_initialized = true;
     return ESP_OK;
 }
+
+esp_err_t platform_power_hold_set(bool hold_on) {
+    if (CONFIG_TQ_POWER_HOLD_PIN < 0) {
+        return ESP_ERR_NOT_SUPPORTED;
+    }
+
+    int level = hold_on ? 1 : 0;
+    if (!s_board_gpio_initialized) {
+        return board_gpio_config_output(CONFIG_TQ_POWER_HOLD_PIN, level, "power_hold");
+    }
+
+    esp_err_t err = gpio_set_level(CONFIG_TQ_POWER_HOLD_PIN, level);
+    if (err != ESP_OK) {
+        ESP_LOGE(TAG, "gpio_set_level failed: power_hold pin=%d level=%d err=%s",
+                 CONFIG_TQ_POWER_HOLD_PIN,
+                 level,
+                 esp_err_to_name(err));
+    }
+    return err;
+}

components/platform/src/platform_power_key.c

@@ -0,0 +1,125 @@
+#include "platform.h"
+
+#include <stddef.h>
+
+#include "button_gpio.h"
+#include "esp_log.h"
+#include "freertos/FreeRTOS.h"
+#include "iot_button.h"
+#include "sdkconfig.h"
+
+static const char *TAG = "platform_power_key";
+static const uint16_t POWER_KEY_SHORT_PRESS_MS = 40;
+static const uint16_t POWER_KEY_LONG_PRESS_MS = 2000;
+
+static button_handle_t s_power_key_button;
+static platform_power_key_event_cb_t s_event_cb;
+static void *s_event_cb_user_data;
+static portMUX_TYPE s_event_cb_lock = portMUX_INITIALIZER_UNLOCKED;
+
+static void power_key_dispatch_event(platform_power_key_event_t event) {
+    platform_power_key_event_cb_t cb = NULL;
+    void *user_data = NULL;
+
+    portENTER_CRITICAL(&s_event_cb_lock);
+    cb = s_event_cb;
+    user_data = s_event_cb_user_data;
+    portEXIT_CRITICAL(&s_event_cb_lock);
+
+    if (cb != NULL) {
+        cb(event, user_data);
+    }
+}
+
+static void power_key_long_press_cb(void *button_handle, void *usr_data) {
+    (void)button_handle;
+    (void)usr_data;
+    power_key_dispatch_event(PLATFORM_POWER_KEY_EVENT_LONG_PRESS);
+}
+
+static void power_key_press_up_cb(void *button_handle, void *usr_data) {
+    (void)button_handle;
+    (void)usr_data;
+    power_key_dispatch_event(PLATFORM_POWER_KEY_EVENT_PRESS_UP);
+}
+
+esp_err_t platform_power_key_init(void) {
+    if (CONFIG_TQ_POWER_KEY_PIN < 0) {
+        ESP_LOGW(TAG, "POWER_KEY disabled by config: pin=%d", CONFIG_TQ_POWER_KEY_PIN);
+        return ESP_ERR_NOT_SUPPORTED;
+    }
+
+    if (s_power_key_button != NULL) {
+        return ESP_OK;
+    }
+
+    button_config_t button_cfg = {
+        .long_press_time = POWER_KEY_LONG_PRESS_MS,
+        .short_press_time = POWER_KEY_SHORT_PRESS_MS,
+    };
+    button_gpio_config_t gpio_cfg = {
+        .gpio_num = CONFIG_TQ_POWER_KEY_PIN,
+        .active_level = 0,
+        .enable_power_save = false,
+        .disable_pull = false,
+    };
+
+    esp_err_t err = iot_button_new_gpio_device(&button_cfg, &gpio_cfg, &s_power_key_button);
+    if (err != ESP_OK) {
+        ESP_LOGE(TAG,
+                 "iot_button_new_gpio_device failed: pin=%d err=%s",
+                 CONFIG_TQ_POWER_KEY_PIN,
+                 esp_err_to_name(err));
+        return err;
+    }
+
+    err = iot_button_register_cb(s_power_key_button,
+                                 BUTTON_LONG_PRESS_START,
+                                 NULL,
+                                 power_key_long_press_cb,
+                                 NULL);
+    if (err != ESP_OK) {
+        ESP_LOGE(TAG, "register BUTTON_LONG_PRESS_START failed: %s", esp_err_to_name(err));
+        (void)iot_button_delete(s_power_key_button);
+        s_power_key_button = NULL;
+        return err;
+    }
+
+    err = iot_button_register_cb(s_power_key_button, BUTTON_PRESS_UP, NULL, power_key_press_up_cb, NULL);
+    if (err != ESP_OK) {
+        ESP_LOGE(TAG, "register BUTTON_PRESS_UP failed: %s", esp_err_to_name(err));
+        (void)iot_button_delete(s_power_key_button);
+        s_power_key_button = NULL;
+        return err;
+    }
+
+    ESP_LOGI(TAG,
+             "POWER_KEY initialized: gpio=%d active_level=low long_press_ms=%u",
+             CONFIG_TQ_POWER_KEY_PIN,
+             (unsigned)POWER_KEY_LONG_PRESS_MS);
+    return ESP_OK;
+}
+
+void platform_power_key_deinit(void) {
+    if (s_power_key_button != NULL) {
+        (void)iot_button_delete(s_power_key_button);
+        s_power_key_button = NULL;
+    }
+
+    portENTER_CRITICAL(&s_event_cb_lock);
+    s_event_cb = NULL;
+    s_event_cb_user_data = NULL;
+    portEXIT_CRITICAL(&s_event_cb_lock);
+}
+
+esp_err_t platform_power_key_set_event_callback(platform_power_key_event_cb_t cb, void *user_data) {
+    if (s_power_key_button == NULL) {
+        return ESP_ERR_INVALID_STATE;
+    }
+
+    portENTER_CRITICAL(&s_event_cb_lock);
+    s_event_cb = cb;
+    s_event_cb_user_data = user_data;
+    portEXIT_CRITICAL(&s_event_cb_lock);
+    return ESP_OK;
+}