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) {
    
 
    int c=0;int oneseven=0,paritybit=0;
    uint8_t frame;
    for(int i=0;i<7;i++){
        if(((data>>i)&0x01)!=0){
            c+=1;
        }
    }
    if(ctrl->parity_enable){
    oneseven=(c%2==0);
    if(ctrl->parity_type){
        //odd parity type
        paritybit=oneseven?1:0;
    }
    else{
        paritybit=oneseven?0:1;
    }
    
    }
    frame=data|(paritybit<<7);
    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