// Interface Mode 6 / 7
// The output is configured as PWM output, the input is configured as test input.
/*
+----------------------------+----------+--------------------------------------------+
|            mode            | Priority |                  ABD-OUT                   |
+----------------------------+----------+--------------------------------------------+
| Liquid/small-bubbles       | Low      | PWM-signal:20-<80%,represents-bubble-size  |
+----------------------------+----------+--------------------------------------------+
| Air/Bubble                 | Medium   | 80%                                        |
+----------------------------+----------+--------------------------------------------+
| Internal-error(self-test)  | High     | 90%                                        |
+----------------------------+----------+--------------------------------------------+
| Serious-fault(watchdog)    | Highest  | Static-H                                   |
+----------------------------+----------+--------------------------------------------+
| Start-Mode                 | --       | H                                          |
+----------------------------+----------+--------------------------------------------+
| Boot-mode                  | --       | UART-Tx                                    |
+----------------------------+----------+--------------------------------------------+
*/

#include "bubble.h"
#define DELTA 1
/**
 * 初始化
 * 
 * @return 0:成功 其他:失败 
 */
uint8_t bubble_init(void)
{
    return 0;
}

/**
 * 设置模式
 * 
 * @param mode 模式
 * @return 0:成功 其他:失败 
 */
uint8_t bubble_set_mode(uint8_t mode)
{
    return 0;
}

/**
 * 获取气泡大小
 * 
 * @return 气泡大小,20-80%/小气泡，80-90%/大气泡，90%以上/故障
 */
uint8_t bubbleGetSize(void)
{
    return getPWMDutyCycle();
}

/**
 * 获取气泡状态
 * 
 * @return 气泡状态,0:无气泡,1:有气泡,2:故障
 */
uint8_t bubbleGetStatus(void)
{
    uint8_t size = bubbleGetSize();
    if (size < (80 - DELTA))
    {
        return 0;
    }
    else if (size >= (80 - DELTA) && size < (90 + DELTA))
    {
        return 1;
    }
    else if (size <= (90 + DELTA) && size >= (90 - DELTA))
    {
        return 2;
    }
}