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 ans;
    uint8_t c=0;
    if(!ctrl->parity_enable){
        ans = data;
        return ans;
    }else{
         for(int i=0;i<7;i++){
                if((data>>i)&0x01){
                    c++;
                }
         }
        if(!(ctrl->parity_type)){
            if(c%2==0){
                ans=data;
            }else{
                ans= 0x80|data;
            }

        }else{
            if(c%2!=0){
                ans=data;
            }else{
                ans= 0x80|data;
            }
        }
    }
    return ans;
}

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