Add LED configuration

include/board_cfg.h

@@ -7,3 +7,9 @@
 #define BOARD_IO_LED_BT     1
 #define BOARD_IO_LED_SOFT   10
 #define BOARD_IO_IR_RX      3
+
+#define BOARD_LED_FREQUENCY     120
+#define BOARD_LED_DUTY_CYCLE     25
+#define BOARD_LED_CHANNEL_WIFI    0
+#define BOARD_LED_CHANNEL_BT      1
+#define BOARD_LED_CHANNEL_SOFT    2

include/led.h

@@ -0,0 +1,27 @@
+/*
+ * MIT License
+ * Copyright (c) 2024 William Vallet
+ */
+
+typedef enum
+{
+    WIFI_NOT_CONNECTED = 0,
+    WIFI_CONNECTED
+} led_wifi_t;
+
+typedef enum
+{
+    BT_NOT_CONNECTED = 0,
+    BT_CONNECTED
+} led_bt_t;
+
+typedef enum
+{
+    SOFT_OFF = 0,
+    SOFT_ON
+} led_soft_t;
+
+extern void led_init(void);
+extern void led_wifi_set(led_wifi_t value);
+extern void led_bt_set(led_bt_t value);
+extern void led_soft_set(led_soft_t value);

src/CMakeLists.txt

@@ -1,4 +1,4 @@
 idf_component_register(
     SRCS
-        main.c board.c
+        main.c board.c led.c
 )

src/board.c

@@ -5,6 +5,7 @@
 
 #include "board.h"
 #include "board_cfg.h"
+#include "led.h"
 #include "esp_err.h"
 #include "driver/gpio.h"
 
@@ -29,4 +30,9 @@ void board_initialise(void)
     ESP_ERROR_CHECK(gpio_set_intr_type(BOARD_IO_IR_RX, GPIO_INTR_NEGEDGE));
     ESP_ERROR_CHECK(gpio_wakeup_enable(BOARD_IO_IR_RX, GPIO_INTR_NEGEDGE));
     ESP_ERROR_CHECK(gpio_intr_enable(BOARD_IO_IR_RX));
+    // LEDs configuration.
+    led_init();
+    led_wifi_set(WIFI_NOT_CONNECTED);
+    led_bt_set(BT_NOT_CONNECTED);
+    led_soft_set(SOFT_OFF);
 }

src/led.c

@@ -0,0 +1,117 @@
+/*
+ * MIT License
+ * Copyright (c) 2024 William Vallet
+ */
+
+#include "board_cfg.h"
+#include "led.h"
+#include "esp_err.h"
+#include "driver/ledc.h"
+#include <stdint.h>
+
+#define LED_SPEED           LEDC_LOW_SPEED_MODE
+#define LED_TIMER           LEDC_TIMER_0
+#define LED_DUTY_RES        LEDC_TIMER_8_BIT
+#define LED_DUTY_RES_VAL    8u
+
+static inline uint32_t led_duty_format(uint32_t percent)
+{
+    return (((1u << LED_DUTY_RES_VAL) - 1u) * 100) / percent;
+}
+
+void led_init(void)
+{
+    ledc_timer_config_t timer_cfg = {
+        .speed_mode = LED_SPEED,
+        .duty_resolution = LED_DUTY_RES,
+        .timer_num = LED_TIMER,
+        .freq_hz = BOARD_LED_FREQUENCY,
+        .clk_cfg = LEDC_AUTO_CLK,
+        .deconfigure = false
+    };
+    ledc_channel_config_t wifi_cfg = {
+        .gpio_num = BOARD_IO_LED_WIFI,
+        .speed_mode = LED_SPEED,
+        .channel = BOARD_LED_CHANNEL_WIFI,
+        .intr_type = LEDC_INTR_DISABLE,
+        .timer_sel = LED_TIMER,
+        .duty = 0,
+        .hpoint = 0
+    };
+    ledc_channel_config_t bt_cfg = {
+        .gpio_num = BOARD_IO_LED_BT,
+        .speed_mode = LED_SPEED,
+        .channel = BOARD_LED_CHANNEL_BT,
+        .intr_type = LEDC_INTR_DISABLE,
+        .timer_sel = LED_TIMER,
+        .duty = 0,
+        .hpoint = 0
+    };
+    ledc_channel_config_t soft_cfg = {
+        .gpio_num = BOARD_IO_LED_SOFT,
+        .speed_mode = LED_SPEED,
+        .channel = BOARD_LED_CHANNEL_SOFT,
+        .intr_type = LEDC_INTR_DISABLE,
+        .timer_sel = LED_TIMER,
+        .duty = 0,
+        .hpoint = 0
+    };
+    ESP_ERROR_CHECK(ledc_timer_config(&timer_cfg));
+    ESP_ERROR_CHECK(ledc_channel_config(&wifi_cfg));
+    ESP_ERROR_CHECK(ledc_channel_config(&bt_cfg));
+    ESP_ERROR_CHECK(ledc_channel_config(&soft_cfg));
+}
+
+void led_wifi_set(led_wifi_t value)
+{
+    switch (value)
+    {
+        case WIFI_NOT_CONNECTED:
+            ledc_set_duty_and_update(LED_SPEED, BOARD_LED_CHANNEL_WIFI, 0, 0);
+            break;
+        case WIFI_CONNECTED:
+            ledc_set_duty_and_update(
+                LED_SPEED, BOARD_LED_CHANNEL_WIFI,
+                led_duty_format(BOARD_LED_DUTY_CYCLE), 0);
+            break;
+        default:
+            // Nothing to do.
+            break;
+    }
+}
+
+void led_bt_set(led_bt_t value)
+{
+    switch (value)
+    {
+        case BT_NOT_CONNECTED:
+            ledc_set_duty_and_update(LED_SPEED, BOARD_LED_CHANNEL_BT, 0, 0);
+            break;
+        case BT_CONNECTED:
+            ledc_set_duty_and_update(
+                LED_SPEED, BOARD_LED_CHANNEL_BT,
+                led_duty_format(BOARD_LED_DUTY_CYCLE), 0);
+            break;
+        default:
+            // Nothing to do.
+            break;
+    }
+}
+
+void led_soft_set(led_soft_t value)
+{
+    switch (value)
+    {
+        case SOFT_OFF:
+            ledc_set_duty_and_update(LED_SPEED, BOARD_LED_CHANNEL_SOFT, 0, 0);
+            break;
+        case SOFT_ON:
+            ledc_set_duty_and_update(
+                LED_SPEED, BOARD_LED_CHANNEL_SOFT,
+                led_duty_format(BOARD_LED_DUTY_CYCLE), 0);
+            break;
+        default:
+            // Nothing to do.
+            break;
+    }
+}

src/main.c

@@ -4,6 +4,7 @@
  */
 
 #include "board.h"
+#include "led.h"
 #include "sdkconfig.h"
 #include "freertos/FreeRTOS.h"
 #include "freertos/task.h"
@@ -39,9 +40,11 @@ void app_main(void)
         (chip_info.features & CHIP_FEATURE_BLE) ? " BLE" : "",
         (chip_info.features & CHIP_FEATURE_IEEE802154) ? " IEEE-802.15.4" : "");
     // Process.
+    led_soft_t led_soft = SOFT_ON;
     while (1)
     {
+        led_soft_set(led_soft);
+        led_soft = (led_soft == SOFT_ON) ? SOFT_OFF : SOFT_ON;
         vTaskDelay(1000 / portTICK_PERIOD_MS);
-        printf(".");
     }
 }