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 no_of_ones(uint8_t data){
    uint8_t k=0;
    uint8_t l;
    for(int i=0;i<7;i++){
        l=(data>>i)&1;
        k+=l;
    }
    return k;
}
uint8_t create_uart_frame(uint8_t data, UART_Control *ctrl) {
    // Your logic here
    data&=0x7F;
    if( ctrl->parity_enable==0){
        return data;
    }
    else{
        uint8_t m=no_of_ones(data);
        if(ctrl->parity_type==0){
            if(m%2==0){
                return data;
            }
            else{
                data|=(1<<7);
            }
        }
        else{
            if(m%2==0){
               data|=(1<<7); 
            }
            else{
                return data;
            }
        }
    }
     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