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 count = 0;
    uint8_t temp = data;
    if (ctrl->parity_enable == 0) {return data;}
    if  (ctrl->parity_enable == 1){
        while (temp){
            if (temp & 0x01){count ++;}
            temp = temp >> 1;
        }
        if ((ctrl->parity_type == 0) && (count%2 == 0)){return data;} else {data = data | 0x80; return data;}
        if ((ctrl->parity_type == 1) && (count%2 == 1)){return data;} else {data = data | 0x80; return data;}

    }
    return 0;
}

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