init: initial commit

2026-05-13 14:44:38 +02:00
commit 3fc50e797d
26 changed files with 4845 additions and 0 deletions
@@ -0,0 +1,6 @@
+idf_component_register(
+    SRCS "src/led_indicator.c"
+    INCLUDE_DIRS "include"
+    REQUIRES driver esp_timer
+    PRIV_REQUIRES esp_driver_gpio
+)
@@ -0,0 +1,14 @@
+#pragma once
+
+typedef enum {
+    LED_OFF,
+    LED_PROVISIONING,  /* 200ms toggle — awaiting provisioning */
+    LED_CONNECTING,    /* 1000ms toggle — connecting to WiFi/MQTT */
+    LED_SCANNING,      /* solid on — normal BLE scanning */
+    LED_CALIBRATING,   /* 500ms toggle — calibration in progress */
+    LED_SELECTED,      /* triple-flash loop — physical identification */
+    LED_ERROR,         /* 50ms rapid blink */
+} led_state_t;
+
+void led_indicator_init(void);
+void led_indicator_set(led_state_t state);
@@ -0,0 +1,95 @@
+#include "led_indicator.h"
+#include "driver/gpio.h"
+#include "esp_timer.h"
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+#include <stdint.h>
+
+#define LED_GPIO GPIO_NUM_2
+
+static esp_timer_handle_t s_timer;
+static led_state_t        s_state = LED_OFF;
+static int                s_phase = 0;  /* generic phase counter for multi-step patterns */
+
+static void set_level(int lvl) { gpio_set_level(LED_GPIO, lvl); }
+
+static void IRAM_ATTR timer_cb(void *arg)
+{
+    switch (s_state) {
+    case LED_OFF:
+        set_level(0);
+        break;
+
+    case LED_PROVISIONING:
+        set_level(s_phase ^= 1);
+        esp_timer_start_once(s_timer, 200 * 1000);
+        break;
+
+    case LED_CONNECTING:
+        set_level(s_phase ^= 1);
+        esp_timer_start_once(s_timer, 1000 * 1000);
+        break;
+
+    case LED_SCANNING:
+        set_level(1);
+        break;
+
+    case LED_CALIBRATING:
+        set_level(s_phase ^= 1);
+        esp_timer_start_once(s_timer, 500 * 1000);
+        break;
+
+    case LED_SELECTED: {
+        /* Triple flash: on/off/on/off/on/off, then 1s dark. s_phase 0-5 = flashes, 6 = pause */
+        static const uint64_t us[] = {100000,100000,100000,100000,100000,100000,1000000};
+        if (s_phase < 6) {
+            set_level(s_phase % 2 == 0 ? 1 : 0);
+        } else {
+            set_level(0);
+        }
+        uint64_t delay = us[s_phase];
+        s_phase = (s_phase + 1) % 7;
+        esp_timer_start_once(s_timer, delay);
+        break;
+    }
+
+    case LED_ERROR:
+        set_level(s_phase ^= 1);
+        esp_timer_start_once(s_timer, 50 * 1000);
+        break;
+    }
+}
+
+void led_indicator_init(void)
+{
+    gpio_config_t io = {
+        .pin_bit_mask = (1ULL << LED_GPIO),
+        .mode         = GPIO_MODE_OUTPUT,
+        .pull_up_en   = GPIO_PULLUP_DISABLE,
+        .pull_down_en = GPIO_PULLDOWN_DISABLE,
+        .intr_type    = GPIO_INTR_DISABLE,
+    };
+    gpio_config(&io);
+
+    esp_timer_create_args_t args = {
+        .callback = timer_cb,
+        .name     = "led",
+    };
+    esp_timer_create(&args, &s_timer);
+}
+
+void led_indicator_set(led_state_t state)
+{
+    esp_timer_stop(s_timer);
+    s_state = state;
+    s_phase = 0;
+
+    if (state == LED_SCANNING) {
+        set_level(1);
+    } else if (state == LED_OFF) {
+        set_level(0);
+    } else {
+        /* Kick off the timer-driven pattern immediately */
+        esp_timer_start_once(s_timer, 0);
+    }
+}