1991/0304/power/devhotrod.c (diff list | history)

1991/0303/sys/src/9/power/devhotrod.c:15,21 – 1991/0304/sys/src/9/power/devhotrod.c:15,21 (short | long | prev | next)
1991/0303		/* * If set, causes data transfers to have checksums */ #define ENABCKSUM 1
1991/0304		#define ENABCKSUM 0
1991/0303
1990/1013		typedef struct Hotrod Hotrod;
1991/0209		typedef struct HotQ HotQ;
1991/0303/sys/src/9/power/devhotrod.c:70,84 – 1991/0304/sys/src/9/power/devhotrod.c:70,92
1991/0209		void hotsend(Hotrod *h, Hotmsg *m)
1990/1013		{
1991/0304		Hotmsg **mp; long l;
1991/0220		/* print("hotsend send %d %d %lux %lux\n", h->wi, m->cmd, m, m->param[0]); /**/
1991/0212		h->wq->msg[h->wi] = (Hotmsg*)MP2VME(m);
1991/0215		do delay(1); while(h->wq->msg[h->wi]);
1991/0220		/* print("hotsend done\n"); /**/
1991/0304		mp = &h->wq->msg[h->wi]; *mp = (Hotmsg*)MP2VME(m);
1991/0209		h->wi++; if(h->wi >= NhotQ) h->wi = 0;
1991/0304		l = 0; while(*mp){ delay(0); /* just a subroutine call; stay off VME */ if(++l > 1000*1000){ l = 0; print("hotsend blocked\n"); } }
1990/1013		} /*
1991/0303/sys/src/9/power/devhotrod.c:360,366 – 1991/0304/sys/src/9/power/devhotrod.c:368,374
1991/0212		qunlock(hp); }else{ /* * use hotrod buffer. lock the buffer till the reply
1991/0304		* use hotrod buffer. lock the buffer until the reply
1991/0212		*/ mp = &u->uhot; qlock(&hp->buflock);