1 files changed, 97 insertions, 0 deletions
diff --git a/drivers/staging/nmf-cm/cm/engine/memory/src/chunk_mgr.c b/drivers/staging/nmf-cm/cm/engine/memory/src/chunk_mgr.c
new file mode 100644
index 00000000000..78a549a74ce
--- /dev/null
+++ b/drivers/staging/nmf-cm/cm/engine/memory/src/chunk_mgr.c
@@ -0,0 +1,97 @@
+/*
+ * Copyright (C) ST-Ericsson SA 2010
+ * Author: Jean-Philippe FASSINO <jean-philippe.fassino@stericsson.com> for ST-Ericsson.
+ * License terms: GNU General Public License (GPL) version 2.
+ */
+/*
+ * Include
+ */
+#include <cm/inc/cm_type.h>
+#include "../inc/chunk_mgr.h"
+#include <cm/engine/trace/inc/trace.h>
+
+#define CHUNKS_PER_PAGE 500
+#define CHUNK_THRESOLD 5
+
+struct t_page_chuncks {
+    struct t_page_chuncks   *nextPage;
+  //  unsigned int            freeChunkInPage;
+    t_cm_chunk              chunks[CHUNKS_PER_PAGE];
+};
+
+static struct t_page_chuncks   *firstPage = 0;
+
+static unsigned int            freeChunks = 0;
+static t_cm_chunk              *firstFreeChunk = 0;
+
+t_cm_chunk* allocChunk()
+{
+    t_cm_chunk* chunk = firstFreeChunk;
+
+    firstFreeChunk = chunk->next;
+
+    chunk->next_free_mem    = 0;
+    chunk->prev_free_mem    = 0;
+    chunk->prev             = 0;
+    chunk->next             = 0;
+    chunk->status           = MEM_FREE;
+    // chunk->offset = 0;
+    // chunk->size   = 0;
+    // chunk->alloc  = 0;
+    // chunk->userData = 0;
+
+    freeChunks--;
+
+    return chunk;
+}
+
+void freeChunk(t_cm_chunk* chunk)
+{
+    // Link chunk in free list
+    chunk->next = firstFreeChunk;
+    firstFreeChunk = chunk;
+
+    // Increase counter
+    freeChunks++;
+}
+
+t_cm_error allocChunkPool(void)
+{
+    struct t_page_chuncks* newPage;
+    int i;
+
+    newPage = (struct t_page_chuncks*)OSAL_Alloc(sizeof(struct t_page_chuncks));
+    if(newPage == NULL)
+        return CM_NO_MORE_MEMORY;
+
+    // Link page
+    newPage->nextPage = firstPage;
+    firstPage = newPage;
+
+    // Put chunk in free list
+    for(i = 0; i < CHUNKS_PER_PAGE; i++)
+        freeChunk(&newPage->chunks[i]);
+
+    return CM_OK;
+}
+
+t_cm_error fillChunkPool(void)
+{
+    if(freeChunks < CHUNK_THRESOLD)
+        return allocChunkPool();
+
+    return CM_OK;
+}
+
+void freeChunkPool(void)
+{
+    while(firstPage != NULL)
+    {
+        struct t_page_chuncks* tofree = firstPage;
+        firstPage = firstPage->nextPage;
+        OSAL_Free(tofree);
+    }
+
+    firstFreeChunk = 0;
+    freeChunks = 0;
+}