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
    int count =0;
    uint8_t data1 = data;
    while(data1 >0)
    {
        if((data1 & 1) == 1)
            count++;
        data1 = data1>>1;
    }
    
    if(ctrl->parity_enable == 1)
    {
        uint8_t parity_bit;
        if(ctrl->parity_type == 0)
            parity_bit = (count%2);
        if(ctrl->parity_type == 1)
            parity_bit = !(count%2);
        return data | (parity_bit<<7);
    }
    return 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