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 (file)
index 0000000..06fcc67
--- /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