feat: 添加LED灯带模块支持

- 在CMakeLists.txt中添加led_strip_module.c源文件和led_strip_en_event.c事件文件
- 在设备树配置中添加SPI1接口的WS2812灯带引脚控制配置
- 在板级配置文件中添加LED灯带设备节点和别名定义
- 新增led_strip_en_event事件头文件和实现，用于控制灯带使能状态
- 配置prj.conf启用LED Strip和WS2812 SPI驱动
- 实现完整的LED灯带模块功能，包括：
  - 初始化和电源管理
  - RGB色彩效果渲染
  - 通过GPIO控制灯带供电
  - 响应应用事件进行启停控制

boards/atguigu/mini_keyboard/mini_keyboard-pinctrl.dtsi

@@ -46,6 +46,21 @@
 		};
 	};
 
+	spi1_ws2812_default: spi1_ws2812_default {
+		group1 {
+			psels = <NRF_PSEL(SPIM_SCK, 1, 4)>,
+				<NRF_PSEL(SPIM_MOSI, 0, 20)>;
+		};
+	};
+
+	spi1_ws2812_sleep: spi1_ws2812_sleep {
+		group1 {
+			psels = <NRF_PSEL(SPIM_SCK, 1, 4)>,
+				<NRF_PSEL(SPIM_MOSI, 0, 20)>;
+			low-power-enable;
+		};
+	};
+
 	pwm0_default: pwm0_default {
 		group1 {
 			psels = <NRF_PSEL(PWM_OUT0, 1, 11)>;

boards/atguigu/mini_keyboard/mini_keyboard.dts

@@ -2,6 +2,7 @@
 #include <nordic/nrf52840_qiaa.dtsi>
 #include "mini_keyboard-pinctrl.dtsi"
 #include <zephyr/dt-bindings/adc/adc.h>
+#include <zephyr/dt-bindings/led/led.h>
 #include <zephyr/dt-bindings/mipi_dbi/mipi_dbi.h>
 #include <zephyr/dt-bindings/pwm/pwm.h>
 
@@ -14,10 +15,12 @@
 		zephyr,flash = &flash0;
 		zephyr,code-partition = &slot0_partition;
 		zephyr,display = &screen_lcd;
+		zephyr,led-strip = &led_strip;
 	};
 
 	aliases {
         led0 = &myled0;
+		led-strip = &led_strip;
 		qdec0 = &qdec;
 		backlight = &backlight;
     };
@@ -206,6 +209,28 @@
 	cs-gpios = <&gpio0 2 GPIO_ACTIVE_LOW>;
 };
 
+&spi1 {
+	status = "okay";
+	pinctrl-0 = <&spi1_ws2812_default>;
+	pinctrl-1 = <&spi1_ws2812_sleep>;
+	pinctrl-names = "default", "sleep";
+
+	led_strip: ws2812@0 {
+		compatible = "worldsemi,ws2812-spi";
+		reg = <0>;
+		spi-max-frequency = <6400000>;
+		chain-length = <17>;
+		color-mapping = <LED_COLOR_ID_GREEN
+				 LED_COLOR_ID_RED
+				 LED_COLOR_ID_BLUE>;
+		spi-one-frame = <0x70>;
+		spi-zero-frame = <0x40>;
+		bits-per-symbol = <8>;
+		reset-delay = <8>;
+		supply-gpios = <&gpio0 13 GPIO_ACTIVE_HIGH>;
+	};
+};
+
 &pwm0 {
 	status = "okay";
 	pinctrl-0 = <&pwm0_default>;