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
    if (ctrl->parity_enable ==0)
        return (uint8_t)(0x7F & data);
    int bitset = 0;
    uint8_t data_c = data;
    while(data_c){
        data_c&=(data_c-1);
        bitset++;
    }
    uint8_t bitParity = 0;
    if(ctrl->parity_type == 0){
        bitParity = bitset & 1;
    }
    else{
        bitParity = !(bitset & 1);
    }
    return (data|(bitParity<<7));
    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