#include "FreeRTOS.h"
#include "task.h"
#include "dac8552.h"
#include "gpio.h"
#include "spi.h"

dac8552x_object dac8552;

void dac8552_cs(cs_state_type state)
{
    if (state == CS_L)
    {
        DAC8552_SYNC(GPIO_PIN_RESET);
    }
    else
    {
        DAC8552_SYNC(GPIO_PIN_SET);
    }
}

void dac8552_transmit_data(uint8_t *data, uint16_t len)
{
    HAL_SPI_Transmit(&hspi3, data, len, 1000);
}

void dac8552_init(dac8552x_object *dac, dac8552_write write, dac8552_chip_select cs)
{
    if ((dac == NULL) || (write == NULL) || (cs == NULL))
    {
        return;
    }
    dac->write_data = write;
    dac->chip_selcet = cs;
}

void set_dac8552_channel_value(dac8552x_object *dac, dac8552_ld_type ld, dac8552_bs_type bs, dac8552_pd_type pd, uint16_t data)
{
    uint32_t input = 0;
    uint8_t sdata[3];

    input = data;

    input = input | (ld << 20);
    input = input | (bs << 18);
    input = input | (pd << 16);

    sdata[0] = (uint8_t)(input >> 16);
    sdata[1] = (uint8_t)(input >> 8);
    sdata[2] = (uint8_t)input;

    dac->chip_selcet(CS_L);
    vTaskDelay(10);
    dac->write_data(sdata, 3);
    dac->chip_selcet(CS_H);
}

void dac8552_operation(float32 *data1, float32 *data2)
{
    uint16_t data = 0;
    float32 temp = 0.0f;

    dac8552_init(&dac8552, dac8552_transmit_data, dac8552_cs);
    if (data1 != NULL)
    {
        // 4~20mA输出
        if (*data1 > 20.0f)
            *data1 = 20.0f;
        else if (*data1 < 4.0f)
            *data1 = 4.0f;
        temp = (*data1) * 100.0f;
        data = (uint16_t)(65535.0f * temp / 2500.0f);
        set_dac8552_channel_value(&dac8552, LD_CH_B, SEL_BUF_B, PD_NONE, data);
        // set_dac8552_channel_value(&dac8552, LD_CH_A, SEL_BUF_A, PD_NONE, data);
    }

    if (data2 != NULL)
    {
        //-2.5~2.5v输出
        if (*data2 < -2.5f)
            *data2 = -2.5f;
        else if (*data2 > 2.5f)
            *data2 = 2.5f;

        temp = (*data2) * 0.5f + 1.25f;
        data = (uint16_t)(65535.0f * temp / 2.5f);
        // set_dac8552_channel_value(&dac8552, LD_CH_B, SEL_BUF_B, PD_NONE, data);
        set_dac8552_channel_value(&dac8552, LD_CH_A, SEL_BUF_A, PD_NONE, data);
    }
}