/**
 * PWM 输出与 LED 控制模块
 * TIM3 CH1/CH2/CH3 -> PC6/PC7/PC8 (LED 指示灯)
 * TIM4 CH3/CH4 -> PB8/PB9 (PWM_OUT1/2, 可配置 WS2812/LED/振动)
 */
#ifndef PWM_H
#define PWM_H

#include "main.h"
#include "tim.h"
#include "config.h"

/* PWM 输出模式 */
#define PWM_MODE_DISABLED   0
#define PWM_MODE_WS2812     1
#define PWM_MODE_LED        2
#define PWM_MODE_VIBRATE    3

/* WS2812 模式 */
#define WS2812_MODE_RAINBOW_BREATH  0
#define WS2812_MODE_COLOR_FLOW      1
#define WS2812_MODE_SINGLE_FLOW     2
#define WS2812_MODE_SINGLE_BREATH   3
#define WS2812_MODE_GRADIENT        4
#define WS2812_MODE_STROBE          5
#define WS2812_MODE_COUNT           6

/* LED 模式 */
#define LED_MODE_BREATH   0
#define LED_MODE_CONSTANT 1

/* 振动档位 */
#define VIBRATE_LEVEL_MIN  1
#define VIBRATE_LEVEL_MAX  9

/* 函数声明 */
void PWM_Init(void);

/* LED 指示灯控制 */
void LED_SetSystem(uint8_t on);       /* 系统状态 LED (PC6) */
void LED_SetNRF(uint8_t mode);        /* NRF 状态 LED (PC7): 0=慢闪,1=快闪,2=常亮,3=灭 */
void LED_SetCRFS(uint8_t mode);       /* CRFS 状态 LED (PC8) */
void LED_Update(void);                /* 每 10ms 调用, 更新 LED 闪烁 */

/* PWM 输出控制 */
void PWM_SetMode(uint8_t ch, uint8_t mode);   /* ch: 0=PWM_OUT1, 1=PWM_OUT2 */
void PWM_SetWS2812Mode(uint8_t mode);          /* 设置 WS2812 效果模式 */
void PWM_SetLEDBrightness(uint8_t brightness); /* 0-100 */
void PWM_SetVibrateLevel(uint8_t level);       /* 1-9 */

/* 配置存储 */
extern uint8_t pwm1_mode;
extern uint8_t pwm2_mode;
extern uint8_t ws2812_effect;
extern uint8_t led_brightness;
extern uint8_t vibrate_level;

#endif /* PWM_H */