Add WS2812 status module and config

main/ws2812_status.c

@@ -0,0 +1,134 @@
+#include "ws2812_status.h"
+
+#include "dcdc_controller.h"
+#include "led_strip.h"
+#include "esp_check.h"
+#include "esp_log.h"
+#include "sdkconfig.h"
+
+#ifndef CONFIG_WATCH_WS2812_LED_COUNT
+#define CONFIG_WATCH_WS2812_LED_COUNT 5
+#endif
+#ifndef CONFIG_WATCH_WS2812_GPIO
+#define CONFIG_WATCH_WS2812_GPIO 8
+#endif
+#ifndef CONFIG_WATCH_WS2812_RMT_RESOLUTION
+#define CONFIG_WATCH_WS2812_RMT_RESOLUTION (10 * 1000 * 1000)
+#endif
+
+#define WS2812_STATUS_GPIO ((gpio_num_t)CONFIG_WATCH_WS2812_GPIO)
+#define WS2812_STATUS_RESOLUTION_HZ CONFIG_WATCH_WS2812_RMT_RESOLUTION
+
+static const char *TAG = "ws2812";
+
+static led_strip_handle_t s_strip;
+static bool s_led_state[WS2812_STATUS_LED_COUNT];
+static bool s_error_state;
+static size_t s_active_channel = SIZE_MAX;
+
+static esp_err_t ws2812_status_apply(void)
+{
+    if (!s_strip) {
+        return ESP_ERR_INVALID_STATE;
+    }
+
+    for (size_t i = 0; i < WS2812_STATUS_LED_COUNT; ++i) {
+        uint8_t r = 0, g = 0, b = 0;
+        if (s_error_state) {
+            r = 40;
+        } else if (s_active_channel == i) {
+            g = 60;
+        } else if (s_led_state[i]) {
+            g = 18;
+        } else {
+            b = 10;
+        }
+        ESP_RETURN_ON_ERROR(led_strip_set_pixel(s_strip, i, r, g, b), TAG,
+                            "led pixel set failed");
+    }
+
+    return led_strip_refresh(s_strip);
+}
+
+esp_err_t ws2812_status_init(void)
+{
+    if (s_strip) {
+        return ESP_OK;
+    }
+
+    led_strip_config_t strip_config = {
+        .strip_gpio_num = WS2812_STATUS_GPIO,
+        .max_leds = WS2812_STATUS_LED_COUNT,
+        .led_model = LED_MODEL_WS2812,
+        .flags.invert_out = false,
+    };
+
+    led_strip_rmt_config_t rmt_cfg = {
+        .clk_src = RMT_CLK_SRC_DEFAULT,
+        .resolution_hz = WS2812_STATUS_RESOLUTION_HZ,
+        .flags.with_dma = false,
+    };
+
+    ESP_RETURN_ON_ERROR(
+        led_strip_new_rmt_device(&strip_config, &rmt_cfg, &s_strip),
+        TAG,
+        "Не вдалося створити RMT пристрій для WS2812");
+    ESP_RETURN_ON_ERROR(led_strip_clear(s_strip), TAG, "clear fail");
+
+    for (size_t i = 0; i < WS2812_STATUS_LED_COUNT; ++i) {
+        s_led_state[i] = false;
+    }
+    s_active_channel = SIZE_MAX;
+    s_error_state = false;
+
+    return ws2812_status_apply();
+}
+
+esp_err_t ws2812_status_set_channel_state(size_t channel, bool enabled)
+{
+    if (channel >= WS2812_STATUS_LED_COUNT) {
+        return ESP_ERR_INVALID_ARG;
+    }
+    s_led_state[channel] = enabled;
+    return ws2812_status_apply();
+}
+
+esp_err_t ws2812_status_mark_active(size_t channel)
+{
+    if (channel >= WS2812_STATUS_LED_COUNT) {
+        return ESP_ERR_INVALID_ARG;
+    }
+    s_active_channel = channel;
+    return ws2812_status_apply();
+}
+
+esp_err_t ws2812_status_clear_active(void)
+{
+    s_active_channel = SIZE_MAX;
+    return ws2812_status_apply();
+}
+
+esp_err_t ws2812_status_set_error(bool has_error)
+{
+    s_error_state = has_error;
+    if (has_error) {
+        s_active_channel = SIZE_MAX;
+    }
+    return ws2812_status_apply();
+}
+
+esp_err_t ws2812_status_refresh_from_dcdc(void)
+{
+    const size_t available_channels = dcdc_channel_count();
+    const size_t count = available_channels < WS2812_STATUS_LED_COUNT
+                             ? available_channels
+                             : WS2812_STATUS_LED_COUNT;
+
+    for (size_t i = 0; i < count; ++i) {
+        s_led_state[i] = dcdc_get_state(i);
+    }
+    for (size_t i = count; i < WS2812_STATUS_LED_COUNT; ++i) {
+        s_led_state[i] = false;
+    }
+    return ws2812_status_apply();
+}