4bd43f507c
Initial dump of the otus USB wireless network driver. It builds properly, but a lot of work needs to be done cleaning it up before it can be merged into the wireless driver tree. Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
115 lines
3.2 KiB
C
115 lines
3.2 KiB
C
/*
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* Copyright (c) 2007-2008 Atheros Communications Inc.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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/* */
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/* Module Name : wrap_buf.c */
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/* */
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/* Abstract */
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/* This module contains wrapper functions for buffer management */
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/* */
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/* NOTES */
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/* Platform dependent. */
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/* */
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/************************************************************************/
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#include "oal_dt.h"
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#include "usbdrv.h"
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#include <linux/netlink.h>
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#if WIRELESS_EXT > 12
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#include <net/iw_handler.h>
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#endif
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/* Called to allocate buffer, must return a continue buffer space */
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zbuf_t* zfwBufAllocate(zdev_t* dev, u16_t len)
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{
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zbuf_t* buf;
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/* Allocate SKB for packet*/
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buf = dev_alloc_skb(len);
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return buf;
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}
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/* Called to free buffer, replace below 3 functions */
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void zfwBufFree(zdev_t* dev, zbuf_t* buf, u16_t status)
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{
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dev_kfree_skb_any(buf);
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}
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/* Called to adjust buffer size and head pointer */
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u16_t zfwBufRemoveHead(zdev_t* dev, zbuf_t* buf, u16_t size)
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{
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//zm_assert(buf->len > size);
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buf->data += size;
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buf->len -= size;
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return 0;
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}
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/* return tail if head==NULL, called to chain multiple buffer together */
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/* Used to chain Rx buffer to form a frame. if the prepared Rx buffer */
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/* is greater than an ethernet frame(1518+32 byte), then this function */
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/* will only be called with head=NULL. */
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u16_t zfwBufChain(zdev_t* dev, zbuf_t** head, zbuf_t* tail)
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{
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*head = tail;
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return 0;
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}
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/* Called when doing infra-bss forwarding */
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u16_t zfwBufCopy(zdev_t* dev, zbuf_t* dst, zbuf_t* src)
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{
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memcpy(dst->data, src->data, src->len);
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dst->tail = dst->data;
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skb_put(dst, src->len);
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return 0;
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}
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/* Called to adjust buffer size and tail pointer */
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u16_t zfwBufSetSize(zdev_t* dev, zbuf_t* buf, u16_t size)
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{
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#ifdef NET_SKBUFF_DATA_USES_OFFSET
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buf->tail = 0;
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buf->len = 0;
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#else
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buf->tail = buf->data;
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buf->len = 0;
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#endif
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skb_put(buf, size);
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return 0;
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}
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u16_t zfwBufGetSize(zdev_t* dev, zbuf_t* buf)
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{
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return buf->len;
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}
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void zfwCopyBufContext(zdev_t* dev, zbuf_t* source, zbuf_t* dst)
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{
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}
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