# HG changeset patch
# User Florian Pose <fp@igh-essen.com>
# Date 1195720803 0
# Node ID 3218dd94b364abcf4262851722a04ff8d1a2f311
# Parent  97e98cbd0cd2a645e6642a84c4f79e23bfe1bf23
Allow gaps in PDO mapping.

diff -r 97e98cbd0cd2 -r 3218dd94b364 NEWS
--- a/NEWS	Fri Oct 05 08:13:50 2007 +0000
+++ b/NEWS	Thu Nov 22 08:40:03 2007 +0000
@@ -4,6 +4,12 @@
 
 -------------------------------------------------------------------------------
 
+Changes in version XXX:
+
+* Allow gaps in PDO mapping read from CoE.
+
+-------------------------------------------------------------------------------
+
 Changes in version 1.3.2:
 
 * New feature: Read dynamic PDO mapping from SDO dictionary.
diff -r 97e98cbd0cd2 -r 3218dd94b364 master/fsm_coe_map.c
--- a/master/fsm_coe_map.c	Fri Oct 05 08:13:50 2007 +0000
+++ b/master/fsm_coe_map.c	Thu Nov 22 08:40:03 2007 +0000
@@ -467,6 +467,30 @@
         pdo_entry->subindex = (pdo_entry_info >> 8) & 0xFF;
         pdo_entry->bit_length = pdo_entry_info & 0xFF;
 
+        if (!pdo_entry->index && !pdo_entry->subindex) {
+            char gapname[] = "Gap";
+
+            // we have a gap in the PDO, next PDO entry
+            if (fsm->slave->master->debug_level) {
+                EC_DBG("    PDO entry gap: %u bit.\n",
+                        pdo_entry->bit_length);
+            }
+
+            if (!(pdo_entry->name = (char *)
+                        kmalloc(strlen(gapname) + 1, GFP_KERNEL))) {
+                EC_ERR("Failed to allocate GAP entry name.\n");
+                kfree(pdo_entry);
+                fsm->state = ec_fsm_coe_map_state_error;
+                return;
+            }
+
+            memcpy(pdo_entry->name, gapname, strlen(gapname) + 1);
+            list_add_tail(&pdo_entry->list, &fsm->pdo->entries);
+            fsm->pdo_subindex++;
+            ec_fsm_coe_map_action_next_pdo_entry(fsm);
+            return;
+        }
+
         if (!(sdo = ec_slave_get_sdo(fsm->slave, pdo_entry->index))) {
             EC_ERR("Slave %u has no SDO 0x%04X.\n",
                     fsm->slave->ring_position, pdo_entry->index);