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