* Update Intel IXP4xx support

- Add IXP4xx NPE ethernet MAC support
- Add support for Intel IXDPG425 board
- Add support for Prodrive PDNB3 board
- Add IRQ support
Patch by Stefan Roese, 23 May 2006

[This patch does not include cpu/ixp/npe/IxNpeMicrocode.c which still
 sufferes from licensing issues. Blame Intel.]

1 files changed, 358 insertions, 0 deletions

diff --git a/cpu/ixp/npe/IxNpeMhSolicitedCbMgr.c b/cpu/ixp/npe/IxNpeMhSolicitedCbMgr.c
new file mode 100644
index 0000000..8e083a6
--- /dev/null
+++ b/cpu/ixp/npe/IxNpeMhSolicitedCbMgr.c
@@ -0,0 +1,358 @@
+/**
+ * @file IxNpeMhSolicitedCbMgr.c
+ *
+ * @author Intel Corporation
+ * @date 18 Jan 2002
+ *
+ * @brief This file contains the implementation of the private API for the
+ * Solicited Callback Manager module.
+ *
+ * 
+ * @par
+ * IXP400 SW Release version 2.0
+ * 
+ * -- Copyright Notice --
+ * 
+ * @par
+ * Copyright 2001-2005, Intel Corporation.
+ * All rights reserved.
+ * 
+ * @par
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the Intel Corporation nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ * 
+ * @par
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * 
+ * @par
+ * -- End of Copyright Notice --
+*/
+#ifndef IXNPEMHCONFIG_P_H
+#	define IXNPEMHSOLICITEDCBMGR_C
+#else
+#	error "Error, IxNpeMhConfig_p.h should not be included before this definition."
+#endif
+
+/*
+ * Put the system defined include files required.
+ */
+
+
+/*
+ * Put the user defined include files required.
+ */
+
+#include "IxOsal.h"
+
+#include "IxNpeMhMacros_p.h"
+#include "IxNpeMhSolicitedCbMgr_p.h"
+#include "IxNpeMhConfig_p.h"
+/*
+ * #defines and macros used in this file.
+ */
+
+/*
+ * Typedefs whose scope is limited to this file.
+ */
+
+/**
+ * @struct IxNpeMhSolicitedCallbackListEntry
+ *
+ * @brief This structure is used to store the information associated with
+ * an entry in the callback list.  This consists of the ID of the send
+ * message (which indicates the ID of the corresponding response message)
+ * and the callback function pointer itself.
+ *
+ */
+
+typedef struct IxNpeMhSolicitedCallbackListEntry
+{
+    /** message ID */
+    IxNpeMhMessageId messageId;
+
+    /** callback function pointer */
+    IxNpeMhCallback callback;
+
+    /** pointer to next entry in the list */
+    struct IxNpeMhSolicitedCallbackListEntry *next;
+} IxNpeMhSolicitedCallbackListEntry;
+
+/**
+ * @struct IxNpeMhSolicitedCallbackList
+ *
+ * @brief This structure is used to maintain the list of response
+ * callbacks.  The number of entries in this list will be variable, and
+ * they will be stored in a linked list fashion for ease of addition and
+ * removal.  The entries themselves are statically allocated, and are
+ * organised into a "free" list and a "callback" list.  Adding an entry
+ * means taking an entry from the "free" list and adding it to the
+ * "callback" list.  Removing an entry means removing it from the
+ * "callback" list and returning it to the "free" list.
+ */
+
+typedef struct
+{
+    /** pointer to the head of the free list */
+    IxNpeMhSolicitedCallbackListEntry *freeHead;
+
+    /** pointer to the head of the callback list */
+    IxNpeMhSolicitedCallbackListEntry *callbackHead;
+
+    /** pointer to the tail of the callback list */
+    IxNpeMhSolicitedCallbackListEntry *callbackTail;
+
+    /** array of entries - the first entry is used as a dummy entry to */
+    /* avoid the scenario of having an empty list, hence '+ 1' */
+    IxNpeMhSolicitedCallbackListEntry entries[IX_NPEMH_MAX_CALLBACKS + 1];
+} IxNpeMhSolicitedCallbackList;
+
+/**
+ * @struct IxNpeMhSolicitedCbMgrStats
+ *
+ * @brief This structure is used to maintain statistics for the Solicited
+ * Callback Manager module.
+ */
+
+typedef struct
+{
+    UINT32 saves;     /**< callback list saves */
+    UINT32 retrieves; /**< callback list retrieves */
+} IxNpeMhSolicitedCbMgrStats;
+
+/*
+ * Variable declarations global to this file only.  Externs are followed by
+ * static variables.
+ */
+
+PRIVATE IxNpeMhSolicitedCallbackList
+ixNpeMhSolicitedCbMgrCallbackLists[IX_NPEMH_NUM_NPES];
+
+PRIVATE IxNpeMhSolicitedCbMgrStats
+ixNpeMhSolicitedCbMgrStats[IX_NPEMH_NUM_NPES];
+
+/*
+ * Extern function prototypes.
+ */
+
+/*
+ * Static function prototypes.
+ */
+
+/*
+ * Function definition: ixNpeMhSolicitedCbMgrInitialize
+ */
+
+void ixNpeMhSolicitedCbMgrInitialize (void)
+{
+    IxNpeMhNpeId npeId;
+    UINT32 localIndex;
+    IxNpeMhSolicitedCallbackList *list = NULL;
+
+    IX_NPEMH_TRACE0 (IX_NPEMH_FN_ENTRY_EXIT, "Entering "
+                     "ixNpeMhSolicitedCbMgrInitialize\n");
+
+    /* for each NPE ... */
+    for (npeId = 0; npeId < IX_NPEMH_NUM_NPES; npeId++)
+    {
+        /* initialise a pointer to the list for convenience */
+        list = &ixNpeMhSolicitedCbMgrCallbackLists[npeId];
+
+        /* for each entry in the list, after the dummy entry ... */
+        for (localIndex = 1; localIndex <= IX_NPEMH_MAX_CALLBACKS; localIndex++)
+        {
+            /* initialise the entry */
+            list->entries[localIndex].messageId = 0x00;
+            list->entries[localIndex].callback = NULL;
+
+            /* if this entry is before the last entry */
+            if (localIndex < IX_NPEMH_MAX_CALLBACKS)
+            {
+                /* chain this entry to the following entry */
+                list->entries[localIndex].next = &(list->entries[localIndex + 1]);
+            }
+            else /* this entry is the last entry */
+            {
+                /* the last entry isn't chained to anything */
+                list->entries[localIndex].next = NULL;
+            }
+        }
+
+        /* set the free list pointer to point to the first real entry */
+        /* (all real entries begin chained together on the free list) */
+        list->freeHead = &(list->entries[1]);
+
+        /* set the callback list pointers to point to the dummy entry */
+        /* (the callback list is initially empty) */
+        list->callbackHead = &(list->entries[0]);
+        list->callbackTail = &(list->entries[0]);
+    }
+
+    IX_NPEMH_TRACE0 (IX_NPEMH_FN_ENTRY_EXIT, "Exiting "
+                     "ixNpeMhSolicitedCbMgrInitialize\n");
+}
+
+/*
+ * Function definition: ixNpeMhSolicitedCbMgrCallbackSave
+ */
+
+IX_STATUS ixNpeMhSolicitedCbMgrCallbackSave (
+    IxNpeMhNpeId npeId,
+    IxNpeMhMessageId solicitedMessageId,
+    IxNpeMhCallback solicitedCallback)
+{
+    IxNpeMhSolicitedCallbackList *list = NULL;
+    IxNpeMhSolicitedCallbackListEntry *callbackEntry = NULL;
+
+    IX_NPEMH_TRACE0 (IX_NPEMH_FN_ENTRY_EXIT, "Entering "
+                     "ixNpeMhSolicitedCbMgrCallbackSave\n");
+
+    /* initialise a pointer to the list for convenience */
+    list = &ixNpeMhSolicitedCbMgrCallbackLists[npeId];
+
+    /* check to see if there are any entries in the free list */
+    if (list->freeHead == NULL)
+    {
+        IX_NPEMH_ERROR_REPORT ("Solicited callback list is full\n");
+        return IX_FAIL;
+    }
+
+    /* there is an entry in the free list we can use */
+
+    /* update statistical info */
+    ixNpeMhSolicitedCbMgrStats[npeId].saves++;
+
+    /* remove a callback entry from the start of the free list */
+    callbackEntry = list->freeHead;
+    list->freeHead = callbackEntry->next;
+
+    /* fill in the callback entry with the new data */
+    callbackEntry->messageId = solicitedMessageId;
+    callbackEntry->callback = solicitedCallback;
+
+    /* the new callback entry will be added to the tail of the callback */
+    /* list, so it isn't chained to anything */
+    callbackEntry->next = NULL;
+
+    /* chain new callback entry to the last entry of the callback list */
+    list->callbackTail->next = callbackEntry;
+    list->callbackTail = callbackEntry;
+
+    IX_NPEMH_TRACE0 (IX_NPEMH_FN_ENTRY_EXIT, "Exiting "
+                     "ixNpeMhSolicitedCbMgrCallbackSave\n");
+
+    return IX_SUCCESS;
+}
+
+/*
+ * Function definition: ixNpeMhSolicitedCbMgrCallbackRetrieve
+ */
+
+void ixNpeMhSolicitedCbMgrCallbackRetrieve (
+    IxNpeMhNpeId npeId,
+    IxNpeMhMessageId solicitedMessageId,
+    IxNpeMhCallback *solicitedCallback)
+{
+    IxNpeMhSolicitedCallbackList *list = NULL;
+    IxNpeMhSolicitedCallbackListEntry *callbackEntry = NULL;
+    IxNpeMhSolicitedCallbackListEntry *previousEntry = NULL;
+
+    /* initialise a pointer to the list for convenience */
+    list = &ixNpeMhSolicitedCbMgrCallbackLists[npeId];
+
+    /* initialise the callback entry to the first entry of the callback */
+    /* list - we must skip over the dummy entry, which is the previous */
+    callbackEntry = list->callbackHead->next;
+    previousEntry = list->callbackHead;
+
+    /* traverse the callback list looking for an entry with a matching */
+    /* message ID.  note we also save the previous entry's pointer to */
+    /* allow us to unchain the matching entry from the callback list */
+    while ((callbackEntry != NULL) &&
+           (callbackEntry->messageId != solicitedMessageId))
+    {
+        previousEntry = callbackEntry;
+        callbackEntry = callbackEntry->next;
+    }
+
+    /* if we didn't find a matching callback entry */
+    if (callbackEntry == NULL)
+    {
+        /* return a NULL callback in the outgoing parameter */
+        *solicitedCallback = NULL;
+    }
+    else /* we found a matching callback entry */
+    {
+        /* update statistical info */
+        ixNpeMhSolicitedCbMgrStats[npeId].retrieves++;
+
+        /* return the callback in the outgoing parameter */
+        *solicitedCallback = callbackEntry->callback;
+
+        /* unchain callback entry by chaining previous entry to next */
+        previousEntry->next = callbackEntry->next;
+
+        /* if the callback entry is at the tail of the list */
+        if (list->callbackTail == callbackEntry)
+        {
+            /* update the tail of the callback list */
+            list->callbackTail = previousEntry;
+        }
+
+        /* re-initialise the callback entry */
+        callbackEntry->messageId = 0x00;
+        callbackEntry->callback = NULL;
+
+        /* add the callback entry to the start of the free list */
+        callbackEntry->next = list->freeHead;
+        list->freeHead = callbackEntry;
+    }
+}
+
+/*
+ * Function definition: ixNpeMhSolicitedCbMgrShow
+ */
+
+void ixNpeMhSolicitedCbMgrShow (
+    IxNpeMhNpeId npeId)
+{
+    /* show the solicited callback list save counter */
+    IX_NPEMH_SHOW ("Solicited callback list saves",
+                   ixNpeMhSolicitedCbMgrStats[npeId].saves);
+
+    /* show the solicited callback list retrieve counter */
+    IX_NPEMH_SHOW ("Solicited callback list retrieves",
+                   ixNpeMhSolicitedCbMgrStats[npeId].retrieves);
+}
+
+/*
+ * Function definition: ixNpeMhSolicitedCbMgrShowReset
+ */
+
+void ixNpeMhSolicitedCbMgrShowReset (
+    IxNpeMhNpeId npeId)
+{
+    /* reset the solicited callback list save counter */
+    ixNpeMhSolicitedCbMgrStats[npeId].saves = 0;
+
+    /* reset the solicited callback list retrieve counter */
+    ixNpeMhSolicitedCbMgrStats[npeId].retrieves = 0;
+}