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, count = 0;

    for(uint8_t i=0; i<7; i++){
        if((data>>i)&1){
            count ++;
        }
    }

    if(! ctrl -> parity_enable){
       frame = data;
    }else{
        if(!ctrl -> parity_type){
            (count %2 == 0)?(frame &= ~(1<<7)):(frame |= (1<<7));
        }else{
            (count %2 != 0)?(frame &= ~(1<<7)):(frame |= (1<<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