Construct UART Data Frame with Parity Bit

Code

#include <stdio.h>
#include <stdint.h>

typedef struct {
    uint8_t parity_enable : 1;
    uint8_t parity_type   : 1;
    uint8_t reserved      : 6;
} UART_Control;

uint8_t create_uart_frame(uint8_t data, UART_Control *ctrl) {
    // Your logic here

    uint8_t logic_high_cnt;

    if(ctrl->parity_enable)
    {
        for (int i = 0; i < 8;i++)
        {
            if (data & (1 << i))  // Check if bit n is set
                logic_high_cnt++;
        }

        if(logic_high_cnt % 2 == 0)//even
        {
            if(!ctrl->parity_type)
            {
                data &= ~(1 << 7);

            }
            else
            {
                data |= (1 << 7);
            }

        }
        else //odd
        {

            if(!ctrl->parity_type)
            {
                data |= (1 << 7);

            }
            else
            {
                data &= ~(1 << 7);
            }

        }

    }
    else
    {
        data &= ~(1 << 7);
    }

    return data;
}

int main() {
    uint8_t data;
    scanf("%hhu", &data);  // 7-bit input

    uint8_t parity_enable, parity_type;
    scanf("%hhu %hhu", &parity_enable, &parity_type);

    UART_Control ctrl;
    ctrl.parity_enable = parity_enable;
    ctrl.parity_type = parity_type;

    uint8_t frame = create_uart_frame(data, &ctrl);
    printf("frame = 0x%02X", frame);

    return 0;
}

Solving Approach