KT25-1015_AC695x_SDK310/apps/kaotings/kt_light_led.c

#include "kt_light_led.h"
#include "tone_player.h"

static u8 led_mode = 0;
static u16 tid = 0;
const char *light_led_level_tone[3] = {TONE_LT_L0, TONE_LT_L1, TONE_LT_L2};

void led_flash_callback(void *p)
{
    static u8 flag = 0;
    flag = !flag;
    if (flag)
    {
        gpio_set_output_value(KT_CFG_LED_PIN, 1);
    }
    else
    {
        gpio_set_output_value(KT_CFG_LED_PIN, 0);
    }
}

void kt_light_led_level_change(void)
{
    led_mode++;
    if (led_mode > 2) // 0-2
    {
        led_mode = 0;
    }

    tone_play(light_led_level_tone[led_mode], 1);

    switch (led_mode)
    {
    case 0:
        // 关灯
        if (tid)
        {
            sys_timer_del(tid);
        }
        tid = 0;
        gpio_set_output_value(KT_CFG_LED_PIN, 0);
        break;
    case 1:
        // 常亮
        if (tid)
        {
            sys_timer_del(tid);
        }
        tid = 0;
        gpio_set_output_value(KT_CFG_LED_PIN, 1);
        break;
    case 2:
        // 爆闪 2.5hz 50%占空比
        if (tid)
        {
            sys_timer_del(tid);
        }
        tid = sys_timer_add(NULL, led_flash_callback, 200);
        break;
    }
}

void kt_light_led_init(void)
{
    led_mode = 0;

    // 初始化GPIO LED
    gpio_set_pull_down(KT_CFG_LED_PIN, 0);
    gpio_set_pull_up(KT_CFG_LED_PIN, 0);
    gpio_set_direction(KT_CFG_LED_PIN, 0);
    gpio_set_output_value(KT_CFG_LED_PIN, 0);
}