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 count = 0;
    if (ctrl->parity_enable == 0){
        data &=~(1<<7);
        return data;
    } else if(ctrl->parity_enable == 1){
        for (int i =0; i<7; i++){
                if ((data>>i) & 1){
                    count ++;}
        }
        if (ctrl->parity_type == 0){ 
            if (count%2){
                data |= (1 <<7);
            }else{
                data &= ~(1<<7);
            }
        }
        if (ctrl->parity_type == 1){
            if (count%2 == 0){
                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