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 frame = data & 0x7f;\

   if(ctrl -> parity_enable){
    uint8_t one = 0;
    uint8_t temp = frame;

    while(temp){
        one += temp & 1;
        temp >>=1; //right shift temp by 1 bit and store it back to temp
    }
    uint8_t parity_bit;

    if(ctrl->parity_type == 0){
        parity_bit = (one%2);
    }else{
        parity_bit = !(one%2);
    }

   frame |= parity_bit<<7; //parity bit is at MSB
   }
   //else do not perform the parity option and return the frame
   return frame;
}

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