1992/0405/pc/devether.c (diff list | history)

1992/0404/sys/src/9/pc/devether.c:148,157 – 1992/0405/sys/src/9/pc/devether.c:148,155 (short | long | prev | next)
1992/0403		t->prom = 1; qlock(c); c->prom++;
1992/0404		if(c->prom == 1){ outb(t->ctlr->iobase+Cr, 0x22); /* Page0, RD2|STA */
1992/0405		if(c->prom == 1)
1992/0403		outb(c->iobase+Rcr, 0x14); /* PRO|AB */
1992/0404		}
1992/0403		qunlock(c); } freeb(bp);
1992/0404/sys/src/9/pc/devether.c:290,299 – 1992/0405/sys/src/9/pc/devether.c:288,295
1992/0404		if(pp->prom){ qlock(pp->ctlr); pp->ctlr->prom--; if(pp->ctlr->prom == 0){ outb(pp->ctlr->iobase+Cr, 0x22);/* Page0, RD2|STA */
1992/0405		if(pp->ctlr->prom == 0)
1992/0404		outb(pp->ctlr->iobase+Rcr, 0x04);/* AB */ } qunlock(pp->ctlr);
1992/0403		}
1992/0404		qlock(pp);
1992/0404/sys/src/9/pc/devether.c:363,369 – 1992/0405/sys/src/9/pc/devether.c:359,364
1992/0404		Ctlr *cp = &ctlr[0]; uchar isr, curr; outb(cp->iobase+Cr, 0x22); /* Page0, RD2|STA */ while(isr = inb(cp->iobase+Isr)){ outb(cp->iobase+Isr, isr); if(isr & Txe)
1992/0404/sys/src/9/pc/devether.c:397,403 – 1992/0405/sys/src/9/pc/devether.c:392,398
1992/0404		* we have received packets. * this is the only place, other than the init code, * where we set the controller to Page1. * we must be careful to reset it back to Page0 in case
1992/0405		* we must be sure to reset it back to Page0 in case
1992/0404		* we interrupted some other part of this driver. */ if(isr & (Ovw|Prx)){
1992/0404/sys/src/9/pc/devether.c:411,418 – 1992/0405/sys/src/9/pc/devether.c:406,414
1992/0403		/* * the following initialisation procedure * is mandatory
1992/0405		* is mandatory.
1992/0404		* we leave the chip idling on internal loopback
1992/0405		* and pointing to Page0.
1992/0403		*/ static void
1992/0404		init(Ctlr *cp)