/*  * This file is part of the UCB release of Plan 9. It is subject to the license * terms in the LICENSE file found in the top-level directory of this * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No * part of the UCB release of Plan 9, including this file, may be copied, * modified, propagated, or distributed except according to the terms contained * in the LICENSE file. */  typedef struct UartData UartData;struct UartData{	int	smcno;	/* smc number: 0 or 1 */	SMC	*smc;	Uartsmc	*usmc;	char	*rxbuf;	char	*txbuf;	BD*	rxb;	BD*	txb;	int	initialized;	int	enabled;} uartdata[Nuart]; int baudgen(int);void smcsetup(Uart *uart);