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 uart;
    if(ctrl->parity_enable==1){
        //count no of 1s in data
        int ones=0;
   
   uint8_t val=data;
    while(data!=0){
        if(data&0x01==0x01){
            ones++;
           } data>>=1;
        }       
    data=val;
    if(ctrl->parity_type==0){
        //even parity
        if(ones%2==0){
            uart=data;
        }else{
            uart=data|(1<<7);
        }

    }else{
        //odd parity
        if(ones%2!=0){
            uart=data;
        }
        else{
           uart=data|(1<<7); 
        }
    }
    }
    
    else{
        uart=data;
    }
    return uart;
}

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