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 fr=0;
    int count = 0;
    uint8_t parity_bit;
    if(ctrl->parity_enable==1){
        fr=data;
        for(int i=0;i<7;i++){
            count+=(data>>i)&1;
        }
        if(ctrl->parity_type==0){
          if(count % 2==0){
            parity_bit=0;
          }
          else {
            parity_bit=1;
          }
        }
        else {
            if(count % 2==0){
                parity_bit=1;
            }
            else{
                parity_bit=0;
            }
        }
    }
    else {
        fr=data;
        parity_bit=0;
    }
    fr=(parity_bit << 7) | fr;
    return fr;
}

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