patch-2.3.99-pre7 linux/drivers/char/rio/route.h

• Lines: 109
• Date: Wed May 10 16:56:44 2000
• Orig file: v2.3.99-pre6/linux/drivers/char/rio/route.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.3.99-pre6/linux/drivers/char/rio/route.h linux/drivers/char/rio/route.h
@@ -0,0 +1,108 @@
+/****************************************************************************
+ *******                                                              *******
+ *******                 R O U T E     H E A D E R
+ *******                                                              *******
+ ****************************************************************************
+
+ Author  : Ian Nandhra / Jeremy Rolls
+ Date    :
+
+ *
+ *  (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
+ *
+ *      This program is free software; you can redistribute it and/or modify
+ *      it under the terms of the GNU General Public License as published by
+ *      the Free Software Foundation; either version 2 of the License, or
+ *      (at your option) any later version.
+ *
+ *      This program is distributed in the hope that it will be useful,
+ *      but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *      GNU General Public License for more details.
+ *
+ *      You should have received a copy of the GNU General Public License
+ *      along with this program; if not, write to the Free Software
+ *      Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+ Version : 0.01
+
+
+                            Mods
+ ----------------------------------------------------------------------------
+  Date     By                Description
+ ----------------------------------------------------------------------------
+
+ ***************************************************************************/
+
+#ifndef _route_h
+#define _route_h
+
+#ifdef SCCS_LABELS
+#ifndef lint
+/* static char *_rio_route_h_sccs = "@(#)route.h	1.3"; */
+#endif
+#endif
+
+#define MAX_LINKS 4
+#define MAX_NODES 17                          /* Maximum nodes in a subnet */
+#define NODE_BYTES ((MAX_NODES / 8) + 1)      /* Number of bytes needed for
+                                                 1 bit per node */
+#define ROUTE_DATA_SIZE  (NODE_BYTES + 2)     /* Number of bytes for complete 
+                                                 info about cost etc. */
+#define ROUTES_PER_PACKET ((PKT_MAX_DATA_LEN -2)/ ROUTE_DATA_SIZE)
+                                              /* Number of nodes we can squeeze
+                                                 into one packet */
+#define MAX_TOPOLOGY_PACKETS (MAX_NODES / ROUTES_PER_PACKET + 1)
+/************************************************
+ * Define the types of command for the ROUTE RUP.
+ ************************************************/
+#define ROUTE_REQUEST    0                    /* Request an ID */
+#define ROUTE_FOAD       1                    /* Kill the RTA */
+#define ROUTE_ALREADY    2                    /* ID given already */
+#define ROUTE_USED       3                    /* All ID's used */
+#define ROUTE_ALLOCATE   4                    /* Here it is */
+#define ROUTE_REQ_TOP    5                    /* I bet you didn't expect....
+                                                 the Topological Inquisition */
+#define ROUTE_TOPOLOGY   6                    /* Topology request answered FD */
+/*******************************************************************
+ * Define the Route Map Structure
+ *
+ * The route map gives a pointer to a Link Structure to use.
+ * This allows Disconnected Links to be checked quickly
+ ******************************************************************/
+typedef struct COST_ROUTE COST_ROUTE;
+struct COST_ROUTE {
+                      unsigned char cost;        /* Cost down this link */
+                      unsigned char route[NODE_BYTES]; /* Nodes thorough this route */
+                  } ;
+
+typedef struct ROUTE_STR ROUTE_STR ;
+struct  ROUTE_STR {
+                      COST_ROUTE cost_route[MAX_LINKS];
+                                                /* cost / route for this link */
+                      ushort favoured;          /* favoured link */
+                  } ;
+
+
+#define NO_LINK            (short) 5      /* Link unattached */
+#define ROUTE_NO_ID        (short) 100    /* No Id */
+#define ROUTE_DISCONNECT   (ushort) 0xff  /* Not connected */
+#define ROUTE_INTERCONNECT (ushort) 0x40  /* Sub-net interconnect */
+
+
+#define SYNC_RUP         (ushort) 255
+#define COMMAND_RUP      (ushort) 254
+#define ERROR_RUP        (ushort) 253
+#define POLL_RUP         (ushort) 252
+#define BOOT_RUP         (ushort) 251
+#define ROUTE_RUP        (ushort) 250
+#define STATUS_RUP       (ushort) 249
+#define POWER_RUP        (ushort) 248
+
+#define HIGHEST_RUP      (ushort) 255   /* Set to Top one */
+#define LOWEST_RUP       (ushort) 248   /* Set to bottom one */
+
+#endif
+
+/*********** end of file ***********/
+