From: Bill Joy <root@ucbvax.Berkeley.EDU>
Date: Tue, 16 Feb 1982 03:46:52 +0000 (-0800)
Subject: date and time created 82/02/15 11:46:52 by root
X-Git-Tag: BSD-4_1c_2-Snapshot-Development~4136
X-Git-Url: https://git.subgeniuskitty.com/unix-history/.git/commitdiff_plain/c9fd255ce19e9f3e2208f4e2ba586d7c4157ab02?hp=791be3951f3fcb15e1a6e68c7ba39b2b6d29965f

date and time created 82/02/15 11:46:52 by root

SCCS-vsn: sys/vax/if/if_dmc.h 4.1
---

diff --git a/usr/src/sys/vax/if/if_dmc.h b/usr/src/sys/vax/if/if_dmc.h
new file mode 100644
index 0000000000..06fcc678ad
--- /dev/null
+++ b/usr/src/sys/vax/if/if_dmc.h
@@ -0,0 +1,66 @@
+/*	if_dmc.h	4.1	82/02/15	*/
+
+/*
+ * DMC-11 Interface
+ */
+
+struct dmcdevice {
+	union {
+		char	b[8];
+		short	w[4];
+	} un;
+};
+
+#define	bsel0	un.b[0]
+#define	bsel1	un.b[1]
+#define	bsel2	un.b[2]
+#define	bsel3	un.b[3]
+#define	bsel4	un.b[4]
+#define	bsel5	un.b[5]
+#define	bsel6	un.b[6]
+#define	bsel7	un.b[7]
+#define	sel0	un.w[0]
+#define	sel2	un.w[1]
+#define	sel4	un.w[2]
+#define	sel6	un.w[3]
+
+#define	DMCMTU	(2048)
+
+#define RDYSCAN	16	/* loop delay for RDYI after RQI */
+
+/* defines for bsel0 */
+#define	DMC_BACCI	0
+#define	DMC_CNTLI	1
+#define	DMC_PERR	2
+#define	DMC_BASEI	3
+#define	DMC_WRITE	0		/* transmit block */
+#define	DMC_READ	4		/* read block */
+#define	DMC_RQI		0040		/* port request bit */
+#define	DMC_IEI		0100		/* enable input interrupts */
+#define	DMC_RDYI	0200		/* port ready */
+
+/* defines for bsel1 */
+#define	DMC_MCLR	0100		/* DMC11 Master Clear */
+#define	DMC_RUN		0200		/* clock running */
+
+/* defines for bsel2 */
+#define	DMC_BACCO	0
+#define	DMC_CNTLO	1
+#define	DMC_OUX		0		/* transmit block */
+#define	DMC_OUR		4		/* read block */
+#define	DMC_IEO		0100		/* enable output interrupts */
+#define	DMC_RDYO	0200		/* port available */
+
+/* defines for CNTLI mode */
+#define	DMC_HDPLX	02000		/* half duplex DDCMP operation */
+#define	DMC_SEC		04000		/* half duplex secondary station */
+#define	DMC_MAINT	00400		/* enter maintenance mode */
+
+/* defines for BACCI/O and BASEI mode */
+#define	DMC_XMEM	0140000		/* xmem bit position */
+#define	DMC_CCOUNT	0037777		/* character count mask */
+#define	DMC_RESUME	0002000		/* resume (BASEI only) */
+
+/* defines for CNTLO */
+#define	DMC_CNTMASK	01777
+#define	DMC_FATAL	01620