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 op = data;
    int count =0;
       
    if (ctrl->parity_enable==1){
        for(int i =0; i<7; i++) {
            if((data>>i)&1) count++;
        }
        if (ctrl->parity_type==0){
            switch(count%2){
                case 0:
                  break;
                case 1:
                  op = data | (1<<7);
                  break;
            }
        }
        else {
            switch(count%2){
                case 1:
                  break;
                case 0:
                  op = data | (1<<7);
                  break;
            }

        }

    }
    return op;
}

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