1994/0201/pc/ether8390.c (diff list | history)

1994/0130/sys/src/9/pc/ether8390.c:285,291 – 1994/0201/sys/src/9/pc/ether8390.c:285,293 (short | long | prev | next)
1993/1118		ulong port = dp8390->dp8390; ulong crda;
1992/1222		uchar cr;
1994/0201		int s, tries;
1992/1222
1994/0201		s = splhi();
1992/1222		/*
1993/0212		* Write some data to offset 'to' in the card's memory
1992/1222		* using the DP8390 remote DMA facility, reading it at
1994/0130/sys/src/9/pc/ether8390.c:336,341 – 1994/0201/sys/src/9/pc/ether8390.c:338,344
1993/1118		outss(dp8390->data, from, len/2);
1992/1222		else
1993/1118		outsb(dp8390->data, from, len);
1994/0201		splx(s);
1992/1222		/* * Wait for the remote DMA to finish. We'll need
1994/0130/sys/src/9/pc/ether8390.c:342,349 – 1994/0201/sys/src/9/pc/ether8390.c:345,356
1992/1222		* a timeout here if this ever gets called before * we know there really is a chip there. */
1994/0201		tries = 0;
1994/0130		while((slowinb(port+Isr) & Rdc) == 0)
1992/1222		;
1994/0201		if(tries++ >= 10000000){ print("dp8390write whoops\n"); break; }
1992/1222
1994/0130		slowoutb(port+Isr, Rdc); slowoutb(port+Cr, cr);