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//

//

//

#ifndef __SERIAL_H

#define __SERIAL_H

#define FCR_FIFO_EN     0x01            /* Fifo enable */

#define FCR_RXSR        0x02            /* Receiver soft reset */

#define FCR_TXSR        0x04            /* Transmitter soft reset */

#define MCR_DTR         0x01

#define MCR_RTS         0x02

#define MCR_DMA_EN      0x04

#define MCR_TX_DFR      0x08

#define LCR_WLS_MSK     0x03            /* character length select mask */

#define LCR_WLS_5       0x00            /* 5 bit character length */

#define LCR_WLS_6       0x01            /* 6 bit character length */

#define LCR_WLS_7       0x02            /* 7 bit character length */

#define LCR_WLS_8       0x03            /* 8 bit character length */

#define LCR_STB         0x04            /* Number of stop Bits, off = 1, on = 1.5 or 2) */

#define LCR_PEN         0x08            /* Parity eneble */

#define LCR_EPS         0x10            /* Even Parity Select */

#define LCR_STKP        0x20            /* Stick Parity */

#define LCR_SBRK        0x40            /* Set Break */

#define LCR_BKSE        0x80            /* Bank select enable */

#define LSR_DR          0x01            /* Data ready */

#define LSR_OE          0x02            /* Overrun */

#define LSR_PE          0x04            /* Parity error */

#define LSR_FE          0x08            /* Framing error */

#define LSR_BI          0x10            /* Break */

#define LSR_THRE        0x20            /* Xmit holding register empty */

#define LSR_TEMT        0x40            /* Xmitter empty */

#define LSR_ERR         0x80            /* Error */

/* useful defaults for LCR */

#define LCR_8N1         0x03

void init_serial( void );

void NS16550_putc( char c );

int puts( char *s);

#endif