diff options
Diffstat (limited to 'drivers/staging/otus/80211core/amsdu.c')
| -rw-r--r-- | drivers/staging/otus/80211core/amsdu.c | 129 |
1 files changed, 0 insertions, 129 deletions
diff --git a/drivers/staging/otus/80211core/amsdu.c b/drivers/staging/otus/80211core/amsdu.c deleted file mode 100644 index 0321288..0000000 --- a/drivers/staging/otus/80211core/amsdu.c +++ /dev/null @@ -1,129 +0,0 @@ -/* - * 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. - */ - -#include "cprecomp.h" - - -/************************************************************************/ -/* */ -/* FUNCTION DESCRIPTION zfGetAmsduSubFrame */ -/* Get a subframe from a-MSDU. */ -/* */ -/* INPUTS */ -/* dev : device pointer */ -/* buf : A-MSDU frame buffer */ -/* offset : offset of subframe in the A-MSDU */ -/* */ -/* OUTPUTS */ -/* NULL or subframe */ -/* */ -/* AUTHOR */ -/* Stephen Chen Atheros Communications, INC. 2007.2 */ -/* */ -/************************************************************************/ -zbuf_t *zfGetAmsduSubFrame(zdev_t *dev, zbuf_t *buf, u16_t *offset) -{ - u16_t subframeLen; - u16_t amsduLen = zfwBufGetSize(dev, buf); - zbuf_t *newBuf; - - ZM_PERFORMANCE_RX_AMSDU(dev, buf, amsduLen); - - /* Verify A-MSDU length */ - if (amsduLen < (*offset + 14)) - return NULL; - - /* Locate A-MSDU subframe by offset and verify subframe length */ - subframeLen = (zmw_buf_readb(dev, buf, *offset + 12) << 8) + - zmw_buf_readb(dev, buf, *offset + 13); - - if (subframeLen == 0) - return NULL; - - /* Verify A-MSDU subframe length */ - if ((*offset+14+subframeLen) <= amsduLen) { - /* Allocate a new buffer */ - newBuf = zfwBufAllocate(dev, 24+2+subframeLen); - if (newBuf != NULL) { - #ifdef ZM_ENABLE_NATIVE_WIFI - /* Copy and convert subframe to wlan frame format - * SHALL NOT INCLUDE QOS and AMSDU header. - * Ray 20070807 For Vista - */ - zfRxBufferCopy(dev, newBuf, buf, 0, 0, 24); - zfRxBufferCopy(dev, newBuf, buf, 24, *offset+14, - subframeLen); - zfwBufSetSize(dev, newBuf, 24+subframeLen); - #else - /* Copy subframe to new buffer */ - zfRxBufferCopy(dev, newBuf, buf, 0, *offset, - 14+subframeLen); - zfwBufSetSize(dev, newBuf, 14+subframeLen); - #endif - /* Update offset */ - *offset += (((14+subframeLen)+3) & 0xfffc); - - /* Return buffer pointer */ - return newBuf; - } - } - return NULL; -} - - -/************************************************************************/ -/* */ -/* FUNCTION DESCRIPTION zfDeAmsdu */ -/* De-AMSDU. */ -/* */ -/* INPUTS */ -/* dev : device pointer */ -/* buf : A-MSDU frame buffer */ -/* vap : VAP port */ -/* */ -/* OUTPUTS */ -/* None */ -/* */ -/* AUTHOR */ -/* Stephen Chen Atheros Communications, INC. 2007.2 */ -/* */ -/************************************************************************/ -void zfDeAmsdu(zdev_t *dev, zbuf_t *buf, u16_t vap, u8_t encryMode) -{ - u16_t offset = ZM_SIZE_OF_WLAN_DATA_HEADER+ZM_SIZE_OF_QOS_CTRL; - zbuf_t *subframeBuf; - zmw_get_wlan_dev(dev); - - ZM_BUFFER_TRACE(dev, buf) - - if (encryMode == ZM_AES || encryMode == ZM_TKIP) - offset += (ZM_SIZE_OF_IV + ZM_SIZE_OF_EXT_IV); - else if (encryMode == ZM_WEP64 || encryMode == ZM_WEP128) - offset += ZM_SIZE_OF_IV; - - - /* Repeatly calling zfGetAmsduSubFrame() until NULL returned */ - while ((subframeBuf = zfGetAmsduSubFrame(dev, buf, &offset)) != NULL) { - wd->commTally.NotifyNDISRxFrmCnt++; - if (wd->zfcbRecvEth != NULL) { - wd->zfcbRecvEth(dev, subframeBuf, (u8_t)vap); - ZM_PERFORMANCE_RX_MSDU(dev, wd->tick); - } - } - zfwBufFree(dev, buf, 0); - - return; -} |
