/*  * 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 Serial Serial;typedef struct Serialops Serialops;typedef struct Serialport Serialport; struct Serialops {	int	(*seteps)(Serialport*);	int	(*init)(Serialport*);	int	(*getparam)(Serialport*);	int	(*setparam)(Serialport*);	int	(*clearpipes)(Serialport*);	int	(*reset)(Serial*, Serialport*);	int	(*sendlines)(Serialport*);	int	(*modemctl)(Serialport*, int);	int	(*setbreak)(Serialport*, int);	int	(*readstatus)(Serialport*);	int	(*wait4data)(Serialport*, uchar *, int);	int	(*wait4write)(Serialport*, uchar *, int);}; enum {	DataBufSz = 8*1024,	Maxifc = 16,};  struct Serialport {	char name[32];	Serial	*s;		/* device we belong to */	int	isjtag; 	Dev	*epintr;	/* may not exist */ 	Dev	*epin;	Dev	*epout; 	Usbfs	fs;	uchar	ctlstate; 	/* serial parameters */	uint	baud;	int	stop;	int	mctl;	int	parity;	int	bits;	int	fifo;	int	limit;	int	rts;	int	cts;	int	dsr;	int	dcd;	int	dtr;	int	rlsd; 	vlong	timer;	int	blocked;	/* for sw flow ctl. BUG: not implemented yet */	int	nbreakerr;	int	ring;	int	nframeerr;	int	nparityerr;	int	novererr;	int	enabled; 	int	interfc;	/* interfc on the device for ftdi */ 	Channel *w4data;	Channel *gotdata;	Channel *readc;		/* to uncouple reads, only used in ftdi... */	int	ndata;	uchar	data[DataBufSz];}; struct Serial {	QLock;	Dev	*dev;		/* usb device*/ 	int	type;		/* serial model subtype */	int	recover;	/* # of non-fatal recovery tries */	Serialops; 	int	hasepintr; 	int	jtag;		/* index of jtag interface, -1 none */	int	nifcs;		/* # of serial interfaces, including JTAG */	Serialport p[Maxifc];	int	maxrtrans;	int	maxwtrans; 	int	maxread;	int	maxwrite; 	int	inhdrsz;	int	outhdrsz;	int	baudbase;	/* for special baud base settings, see ftdi */}; enum {	/* soft flow control chars */	CTLS	= 023,	CTLQ	= 021,	CtlDTR	= 1,	CtlRTS	= 2,}; /* * !hget http://lxr.linux.no/source/drivers/usb/serial/pl2303.h|htmlfmt * !hget http://lxr.linux.no/source/drivers/usb/serial/pl2303.c|htmlfmt */ int serialmain(Dev *d, int argc, char *argv[]); typedef struct Cinfo Cinfo;struct Cinfo {	int	vid;		/* usb vendor id */	int	did;		/* usb device/product id */	int	cid;		/* controller id assigned by us */}; extern Cinfo plinfo[];extern Cinfo uconsinfo[];extern int serialdebug; #define	dsprint	if(serialdebug)fprint int	serialrecover(Serial *ser, Serialport *p, Dev *ep, char *err);int	serialreset(Serial *ser);char	*serdumpst(Serialport *p, char *buf, int bufsz);