#define SERIAL_7E1 0x02
#define SERIAL_7O1 0x03
#define SERIAL_8N1 0x00
#define SERIAL_8E1 0x06
#define SERIAL_8O1 0x07
#define SERIAL_7E1_RXINV 0x12
#define SERIAL_7O1_RXINV 0x13
#define SERIAL_8N1_RXINV 0x10
#define SERIAL_8E1_RXINV 0x16
#define SERIAL_8O1_RXINV 0x17
#define SERIAL_7E1_TXINV 0x22
#define SERIAL_7O1_TXINV 0x23
#define SERIAL_8N1_TXINV 0x20
#define SERIAL_8E1_TXINV 0x26
#define SERIAL_8O1_TXINV 0x27
#define SERIAL_7E1_RXINV_TXINV 0x32
#define SERIAL_7O1_RXINV_TXINV 0x33
#define SERIAL_8N1_RXINV_TXINV 0x30
#define SERIAL_8E1_RXINV_TXINV 0x36
#define SERIAL_8O1_RXINV_TXINV 0x37
#ifdef SERIAL_9BIT_SUPPORT
#define SERIAL_9N1 0x84
#define SERIAL_9E1 0x8E
#define SERIAL_9O1 0x8F
#define SERIAL_9N1_RXINV 0x94
#define SERIAL_9E1_RXINV 0x9E
#define SERIAL_9O1_RXINV 0x9F
#define SERIAL_9N1_TXINV 0xA4
#define SERIAL_9E1_TXINV 0xAE
#define SERIAL_9O1_TXINV 0xAF
#define SERIAL_9N1_RXINV_TXINV 0xB4
#define SERIAL_9E1_RXINV_TXINV 0xBE
#define SERIAL_9O1_RXINV_TXINV 0xBF
#endif
// We have 1/2 bit stop setting
#define SERIAL_2STOP_BITS 0x100
#define SERIAL_8E2 (SERIAL_8E1 | SERIAL_2STOP_BITS)
#define SERIAL_8O2 (SERIAL_8O1 | SERIAL_2STOP_BITS)
#define SERIAL_8E2_RXINV (SERIAL_8E1_RXINV | SERIAL_2STOP_BITS)
#define SERIAL_8O2_RXINV (SERIAL_8O1_RXINV | SERIAL_2STOP_BITS)
#define SERIAL_8E2_TXINV (SERIAL_8E1_TXINV | SERIAL_2STOP_BITS)
#define SERIAL_8O2_TXINV (SERIAL_8O1_TXINV | SERIAL_2STOP_BITS)
#define SERIAL_8E2_RXINV_TXINV (SERIAL_8E1_RXINV_TXINV | SERIAL_2STOP_BITS)
#define SERIAL_8O2_RXINV_TXINV (SERIAL_8O1_RXINV_TXINV | SERIAL_2STOP_BITS)
#define SERIAL_8N2 (SERIAL_8N1 | SERIAL_2STOP_BITS)
#define SERIAL_8N2_RXINV (SERIAL_8N1_RXINV | SERIAL_2STOP_BITS)
#define SERIAL_8N2_TXINV (SERIAL_8N1_TXINV | SERIAL_2STOP_BITS)
#define SERIAL_8N2_RXINV_TXINV (SERIAL_8N1_RXINV_TXINV | SERIAL_2STOP_BITS)
// bit0: parity, 0=even, 1=odd
// bit1: parity, 0=disable, 1=enable
// bit2: mode, 1=9bit, 0=8bit
// bit3: mode10: 1=10bit, 0=8bit
// bit4: rxinv, 0=normal, 1=inverted
// bit5: txinv, 0=normal, 1=inverted
// bit6: unused
// bit7: actual data goes into 9th bit