1 files changed, 114 insertions, 0 deletions
diff --git a/drivers/staging/otus/wrap_buf.c b/drivers/staging/otus/wrap_buf.c
new file mode 100644
index 000000000000..62496a0f8e3f
--- /dev/null
+++ b/drivers/staging/otus/wrap_buf.c
@@ -0,0 +1,114 @@
+/*
+ * Copyright (c) 2007-2008 Atheros Communications Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+/*                                                                      */
+/*  Module Name : wrap_buf.c                                            */
+/*                                                                      */
+/*  Abstract                                                            */
+/*     This module contains wrapper functions for buffer management     */
+/*                                                                      */
+/*  NOTES                                                               */
+/*     Platform dependent.                                              */
+/*                                                                      */
+/************************************************************************/
+
+#include "oal_dt.h"
+#include "usbdrv.h"
+
+
+#include <linux/netlink.h>
+
+#if WIRELESS_EXT > 12
+#include <net/iw_handler.h>
+#endif
+
+
+
+/* Called to allocate buffer, must return a continue buffer space */
+zbuf_t* zfwBufAllocate(zdev_t* dev, u16_t len)
+{
+    zbuf_t* buf;
+
+    /* Allocate SKB for packet*/
+    buf = dev_alloc_skb(len);
+
+    return buf;
+}
+
+
+/* Called to free buffer, replace below 3 functions */
+void zfwBufFree(zdev_t* dev, zbuf_t* buf, u16_t status)
+{
+    dev_kfree_skb_any(buf);
+}
+
+/* Called to adjust buffer size and head pointer */
+u16_t zfwBufRemoveHead(zdev_t* dev, zbuf_t* buf, u16_t size)
+{
+    //zm_assert(buf->len > size);
+
+    buf->data += size;
+    buf->len -= size;
+    return 0;
+}
+
+
+
+
+/* return tail if head==NULL, called to chain multiple buffer together */
+/* Used to chain Rx buffer to form a frame. if the prepared Rx buffer  */
+/* is greater than an ethernet frame(1518+32 byte), then this function    */
+/* will only be called with head=NULL.                                 */
+u16_t zfwBufChain(zdev_t* dev, zbuf_t** head, zbuf_t* tail)
+{
+
+    *head = tail;
+    return 0;
+}
+
+
+/* Called when doing infra-bss forwarding */
+u16_t zfwBufCopy(zdev_t* dev, zbuf_t* dst, zbuf_t* src)
+{
+    memcpy(dst->data, src->data, src->len);
+    dst->tail = dst->data;
+    skb_put(dst, src->len);
+    return 0;
+}
+
+
+/* Called to adjust buffer size and tail pointer */
+u16_t zfwBufSetSize(zdev_t* dev, zbuf_t* buf, u16_t size)
+{
+#ifdef NET_SKBUFF_DATA_USES_OFFSET
+    buf->tail = 0;
+    buf->len = 0;
+#else
+    buf->tail = buf->data;
+    buf->len = 0;
+#endif
+
+    skb_put(buf, size);
+    return 0;
+}
+
+u16_t zfwBufGetSize(zdev_t* dev, zbuf_t* buf)
+{
+    return buf->len;
+}
+
+void zfwCopyBufContext(zdev_t* dev, zbuf_t* source, zbuf_t* dst)
+{
+}