BSD-SCCS END release

[unix-history] / usr / src / sys / hp300 / include / remote-sl.h

diff --git a/usr/src/sys/hp300/include/remote-sl.h b/usr/src/sys/hp300/include/remote-sl.h
index 5a7e723..8f62c4b 100644 (file)
--- a/usr/src/sys/hp300/include/remote-sl.h
+++ b/usr/src/sys/hp300/include/remote-sl.h
@@ -1,38 +1,32 @@
 /*-
 /*-

- * Copyright (c) 1991 The Regents of the University of California.
- * All rights reserved.
+ * Copyright (c) 1991, 1993
+ *     The Regents of the University of California.  All rights reserved.

  *
  * This code is derived from software contributed to Berkeley by
  * Steven McCanne of Lawrence Berkeley Laboratory.
  *
  * %sccs.include.redist.c%
  *
  *
  * This code is derived from software contributed to Berkeley by
  * Steven McCanne of Lawrence Berkeley Laboratory.
  *
  * %sccs.include.redist.c%
  *

- *     @(#)remote-sl.h 7.3 (Berkeley) %G%
+ *     @(#)remote-sl.h 8.1 (Berkeley) %G%

  *
  *

- * $Header: remote-sl.h,v 1.3 91/03/22 15:34:27 mccanne Exp $ (LBL)
+ * $Header: remote-sl.h,v 1.2 92/07/23 19:38:20 mccanne Exp $ (LBL)

  */
 
  */
 

+#define FRAME_START            0xc1            /* Frame End */

 #define FRAME_END              0xc0            /* Frame End */
 #define FRAME_ESCAPE           0xdb            /* Frame Esc */
 #define FRAME_END              0xc0            /* Frame End */
 #define FRAME_ESCAPE           0xdb            /* Frame Esc */

-#define TRANS_FRAME_END                0xdc            /* transposed frame end */
+#define TRANS_FRAME_START      0xde            /* transposed frame start */
+#define TRANS_FRAME_END                0xdc            /* transposed frame esc */

 #define TRANS_FRAME_ESCAPE     0xdd            /* transposed frame esc */
 
 /*
 #define TRANS_FRAME_ESCAPE     0xdd            /* transposed frame esc */
 
 /*

- * Error codes.
+ * Message limits.  SL_MAXDATA is the maximum number of bytes that can
+ * be read or written.  SL_RPCSIZE is the maximum message size for
+ * the serial link.  The actual MTU is two times the max message (since
+ * each byte might be escaped), plus the two framing bytes.  We add two 
+ * to the message length to account for the type byte and checksum.

  */
  */

-#define EKGDB_CSUM     1
-#define EKGDB_2BIG     2
-#define EKGDB_RUNT     3
-
-/*
- * Message limits.  SL_MAXMSG is the longest message that can be passed
- * down to the serial link.  The actual MTU is two times the max message
- * (since each byte might be escaped), plus the two framing bytes.  We add 
- * two to the message length to account for the type byte and check sum.
- * SL_BUFSIZE is one character larger than SL_MAXMSG so we can stuff
- * a checksum into the input buffer without special casing.
- */
-#define SL_MAXMSG 64
-#define SL_BUFSIZE (SL_MAXMSG + 1)
-#define SL_MTU ((2 * (SL_MAXMSG + 2) + 2))
+#define SL_MAXDATA 62                  /* max data that can be read */
+#define SL_RPCSIZE (1 + SL_MAXDATA)    /* errno byte + data */
+#define SL_MTU ((2 * (SL_RPCSIZE + 2) + 2))