static int32_t ad9361_check_cal_done(struct ad9361_rf_phy *phy, uint32_t reg,
                     uint32_t mask, uint32_t done_state)
{
    uint32_t timeout = 20000; /* RFDC_CAL can take long */
    uint32_t state;

    do {
        state = ad9361_spi_readf(phy->spi, reg, mask);
        if (state == done_state)
            return 0;

        if (reg == REG_CALIBRATION_CTRL)
            no_os_udelay(1200);
        else
            no_os_udelay(120);
    } while (timeout--);

    dev_err(&phy->spi->dev, "Calibration TIMEOUT (0x%"PRIX32", 0x%"PRIX32")", reg,
        mask);

    return -ETIMEDOUT;
}

/**
 * SPI multiple bytes register write.
 * @param spi
 * @param reg The register address.
 * @param tbuf The data buffer.
 * @param num The number of bytes to read.
 * @return 0 in case of success, negative error code otherwise.
 */
static int32_t ad9361_spi_writem(struct no_os_spi_desc *spi,
                 uint32_t reg, uint8_t *tbuf, uint32_t num)
{
    uint8_t buf[10];
    int32_t ret;
    uint16_t cmd;

    if (num > MAX_MBYTE_SPI)
        return -EINVAL;

    cmd = AD_WRITE | AD_CNT(num) | AD_ADDR(reg);
    buf[0] = cmd >> 8;
    buf[1] = cmd & 0xFF;

#ifndef ALTERA_PLATFORM
    memcpy(&buf[2], tbuf, num);
#else
    int32_t i;
    for (i = 0; i < num; i++)
        buf[2 + i] =  tbuf[i];
#endif
    /* suozhang 2026/05/04 修改形参 传输字节数 改为 发送字节数和接收字节数 适配 MPFS 底层库 */
// 特别注意这里  全部是发送字节，没有读取字节，

    ret = no_os_spi_write_and_read(spi, buf, 2+num, 0 );
    if (ret < 0) {
        dev_err(&spi->dev, "Write Error %"PRId32, ret);
        return ret;
    }

#ifdef _DEBUG
    {
        int32_t i;
        for (i = 0; i < num; i++)
            dev_dbg(&spi->dev, "Reg 0x%"PRIX32" val 0x%X", reg--, tbuf[i]);
    }
#endif

    return 0;
}

/**
 * SPI multiple bytes register read.
 * @param spi
 * @param reg The register address.
 * @param rbuf The data buffer.
 * @param num The number of bytes to read.
 * @return 0 in case of success, negative error code otherwise.
 */
int32_t ad9361_spi_readm(struct no_os_spi_desc *spi, uint32_t reg,
             uint8_t *rbuf, uint32_t num)
{
    int32_t ret = 0;
    uint16_t cmd;
    uint8_t *rbuffer;
    if (num > MAX_MBYTE_SPI)
        return -EINVAL;

    cmd = AD_READ | AD_CNT(num) | AD_ADDR(reg);
    rbuffer = no_os_malloc(num + 2);
    if (!rbuffer)
        return -ENOMEM;
    rbuffer[0] = cmd >> 8;
    rbuffer[1] = cmd & 0xFF;
    /* suozhang 2026/05/04 修改形参 传输字节数 改为 发送字节数和接收字节数 适配 MPFS 底层库 */
    ret = no_os_spi_write_and_read(spi, &rbuffer[0], 2, num);

    if (ret < 0)
        dev_err(&spi->dev, "Read Error %"PRId32, ret);
    else
        memcpy(rbuf, &rbuffer[2], num);

    no_os_free(rbuffer);
#ifdef _DEBUG
    {
        int32_t i;
        for (i = 0; i < num; i++)
            dev_dbg(&spi->dev, "%s: reg 0x%"PRIX32" val 0x%X",
                __func__, reg--, rbuf[i]);
    }
#endif

    return ret;
}

/**
 * SPI register write.
 * @param spi
 * @param reg The register address.
 * @param val The value of the register.
 * @return 0 in case of success, negative error code otherwise.
 */
int32_t ad9361_spi_write(struct no_os_spi_desc *spi,
             uint32_t reg, uint32_t val)
{
    uint8_t buf[3];
    int32_t ret;
    uint16_t cmd;

    cmd = AD_WRITE | AD_CNT(1) | AD_ADDR(reg);
    buf[0] = cmd >> 8;
    buf[1] = cmd & 0xFF;
    buf[2] = val;
    /* suozhang 2026/05/04 修改形参 传输字节数 改为 发送字节数和接收字节数 适配 MPFS 底层库 */
    ret = no_os_spi_write_and_read(spi, buf, 3, 0);
    if (ret < 0) {
        dev_err(&spi->dev, "Write Error %"PRId32, ret);
        return ret;
    }

#ifdef _DEBUG
    dev_dbg(&spi->dev, "%s: reg 0x%"PRIX32" val 0x%X", __func__, reg, buf[2]);
#endif

    return 0;
}