enum  {
	UART_PARITY_NO = 0,
	UART_PARITY_EVEN,
	UART_PARITY_ODD,
	UART_PARITY_COUNT
}


enum  {
	UART_ONE_STOPBIT = 0,
	UART_TWO_STOPBIT,
	UART_STOPBITS_COUNT
}


enum  {
	UART_MODE_MODBUS_RTU = 0,
    UART_MODE_RAW_DATA,
    UART_MODE_RAW_DATA_FLASHER
}

func UART_WRITE(comPortId: uint32, str: &string) -> int32 {
    return UART_WRITE_DATA(comPortId, str.buf, str.size - 1)
}


func UART_WRITE(comPortId: uint32, data: char[]) -> int32 {
    let p: pointer = data
    return UART_WRITE_DATA(comPortId, p, GetArgLength(data))
}

func UART_READ_CHAR(comPortId: uint32) -> char {
    var c: char
    UART_READ_DATA(comPortId, c, 1)
    return c
}

func UART_READ_LINE(comPortId: uint32) -> string {
    var buf: char[32] = ['\0']
    var str = mk StringBuilder { 
		stack: buf,
        buf: null,

        stackSize: 32,
        capacity: 0,
        size: 1
	}

    var c = ' '
    while c != '\n' && c != '\0' {
        c = UART_READ_CHAR(comPortId)
        str.Append(c)
    } 

    UART_FLUSH_RX(comPortId)

    return str.GetStr()
}

extern demangle func UART_CFG(uint32, uint32, uint32, uint32)
extern demangle func UART_SET_FRAME_CFG(uint32, uint32, uint8)

// COM_PORT, MODE
extern demangle func UART_SET_PROTOCOL(uint32, uint32)
// COM_PORT, timeout (ms)
extern demangle func UART_SET_TIMEOUT(uint32, uint32) -> int32

// COM_PORT, cb_func
// extern demangle func UART_SET_RECV_CB(uint32, func {(uint32)} )
// COM_PORT
extern demangle func UART_RX_SIZE(uint32) -> uint32
// COM_PORT 
extern demangle func UART_FLUSH_RX(uint32)
// COM_PORT 
extern demangle func UART_RX_BUF(uint32) -> pointer
// COM_PORT
// extern demangle func UART_TX_BUF(uint32) -> pointer
// COM_PORT
// extern demangle func UART_FLUSH_TX(uint32) -> pointer
// COM_PORT
extern demangle func UART_WRITE_DATA(uint32, pointer, uint) -> int32
// COM_PORT 
extern demangle func UART_READ_DATA(uint32, pointer, uint) -> int32