1991/0828/port/devlance.c (diff list | history)

1991/0621/sys/src/9/port/devlance.c:183,189 – 1991/0828/sys/src/9/port/devlance.c:183,191 (short | long | prev | next)
1990/0227		* predeclared */
1991/0621		static void lancekproc(void *); static void lancestart(int);
1991/0828		static void lancestart(int, int); static void lancedump(void);
1990/0227		/* * lance stream module definition */
1991/0621/sys/src/9/port/devlance.c:228,234 – 1991/0828/sys/src/9/port/devlance.c:230,236
1991/0621		qlock(&l); l.prom--; if(l.prom == 0) lancestart(0);
1991/0828		lancestart(0, 1);
1991/0621		qunlock(&l); }
1990/0721		qlock(et);
1991/0621/sys/src/9/port/devlance.c:266,272 – 1991/0828/sys/src/9/port/devlance.c:268,274
1991/0621		qlock(&l); l.prom++; if(l.prom == 1) lancestart(PROM);
1991/0828		lancestart(PROM, 1);
1991/0621		qunlock(&l);
1990/0227		} freeb(bp);
1991/0621/sys/src/9/port/devlance.c:283,295 – 1991/0828/sys/src/9/port/devlance.c:285,299
1990/0227		* only one transmitter at a time */ qlock(&l.tlock);
1991/0828		if(waserror()){ qunlock(&l.tlock); nexterror(); }
1990/0227		/* * Wait till we get an output buffer */ if(TSUCC(l.tc) == l.tl){ sleep(&l.tr, isobuf, (void *)0); }
1991/0828		sleep(&l.tr, isobuf, (void *)0);
1990/0911		p = &l.tp[l.tc];
1990/0227		/*
1991/0621/sys/src/9/port/devlance.c:335,340 – 1991/0828/sys/src/9/port/devlance.c:339,345
1990/0227		*l.rdp = INEA|TDMD; /**/
1990/1229		wbflush();
1990/0227		qunlock(&l.tlock);
1991/0828		poperror();
1990/0227		} /*
1991/0621/sys/src/9/port/devlance.c:377,383 – 1991/0828/sys/src/9/port/devlance.c:382,388
1990/0227		* It may be used to restart a dead lance. */ static void
1991/0621		lancestart(int mode)
1991/0828		lancestart(int mode, int dolock)
1990/0227		{ int i;
1990/1228		Etherpkt *p;
1991/0621/sys/src/9/port/devlance.c:388,395 – 1991/0828/sys/src/9/port/devlance.c:393,402
1991/0621		* wait till both receiver and transmitter are * quiescent */ qlock(&l.tlock); qlock(&l.rlock);
1991/0828		if(dolock){ qlock(&l.tlock); qlock(&l.rlock); }
1991/0621
1990/0227		lancereset();
1991/0621		l.rl = 0;
1991/0621/sys/src/9/port/devlance.c:509,515 – 1991/0828/sys/src/9/port/devlance.c:516,522
1990/0227		if(l.kstarted == 0){
1990/0911		kproc("lancekproc", lancekproc, 0);/**/
1990/0227		l.kstarted = 1;
1991/0621		lancestart(0);
1991/0828		lancestart(0, 1);
1990/0227		}
1991/0316		return devattach('l', spec);
1990/0227		}
1991/0621/sys/src/9/port/devlance.c:625,630 – 1991/0828/sys/src/9/port/devlance.c:632,638
1990/0911		int i;
1990/0227		ushort csr;
1990/0911		Lancemem *lm = LANCEMEM;
1991/0828		static int misses;
1990/0227		csr = *l.rdp;
1991/0621/sys/src/9/port/devlance.c:638,643 – 1991/0828/sys/src/9/port/devlance.c:646,653
1990/0227		*/
1991/0108		if(csr & (BABL|MISS|MERR)){
1990/0227		print("lance err %ux\n", csr);
1991/0828		if(csr & MISS) lancedump();
1991/0108		}
1990/0227
1990/1231		if(csr & IDON){
1991/0621/sys/src/9/port/devlance.c:650,655 – 1991/0828/sys/src/9/port/devlance.c:660,666
1990/0227		* look for rcv'd packets, just wakeup the input process */
1990/1229		if(l.rl!=l.rc && (MPus(lm->rmr[l.rl].flags) & OWN)==0){
1991/0828		misses = 0;
1990/0227		wakeup(&l.rr);
1990/1229		}
1990/0227
1991/0621/sys/src/9/port/devlance.c:756,759 – 1991/0828/sys/src/9/port/devlance.c:767,776
1991/0621		qunlock(&l.rlock);
1990/0227		sleep(&l.rr, isinput, 0); }
1991/0828		} static void lancedump(void) { print("l.rl %d l.rc %d l.tl %d l.tc %d\n", l.rl, l.rc, l.tl, l.tc);
1990/0826		}