Return-path: Received: from mail-we0-f179.google.com ([74.125.82.179]:59815 "EHLO mail-we0-f179.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751888Ab3JAO4x (ORCPT ); Tue, 1 Oct 2013 10:56:53 -0400 Received: by mail-we0-f179.google.com with SMTP id x55so7253580wes.24 for ; Tue, 01 Oct 2013 07:56:52 -0700 (PDT) Message-ID: <1380639408.2087.4.camel@canaries64-MCP7A> (sfid-20131001_165656_767233_44AABB43) Subject: [PATCH 4/8] staging: vt6656: rxtx.c parse out struct vnt_tx_datahead_a_fb From: Malcolm Priestley To: gregkh@linuxfoundation.org Cc: linux-wireless@vger.kernel.org Date: Tue, 01 Oct 2013 15:56:48 +0100 Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org List-ID: Parse struct vnt_tx_datahead_a_fb from s_uFillDataHead and move to struct vnt_rts_a_fb structure returning duration down functions. This removes pvTxDataHd pointer assignment. Signed-off-by: Malcolm Priestley --- drivers/staging/vt6656/rxtx.c | 49 ++++++++++++++++++++++++------------------- drivers/staging/vt6656/rxtx.h | 1 + 2 files changed, 28 insertions(+), 22 deletions(-) diff --git a/drivers/staging/vt6656/rxtx.c b/drivers/staging/vt6656/rxtx.c index a56a49a..b2c4786 100644 --- a/drivers/staging/vt6656/rxtx.c +++ b/drivers/staging/vt6656/rxtx.c @@ -552,6 +552,23 @@ static u16 vnt_rxtx_datahead_g_fb(struct vnt_private *priv, u8 pkt_type, return buf->wDuration_a; } +static u16 vnt_rxtx_datahead_a_fb(struct vnt_private *priv, u8 pkt_type, + u16 rate, struct vnt_tx_datahead_a_fb *buf, + u32 frame_len, int need_ack) +{ + /* Get SignalField,ServiceField,Length */ + BBvCalculateParameter(priv, frame_len, rate, pkt_type, &buf->a); + /* Get Duration and TimeStampOff */ + buf->wDuration = s_uGetDataDuration(priv, pkt_type, need_ack); + + buf->wDuration_f0 = s_uGetDataDuration(priv, pkt_type, need_ack); + buf->wDuration_f1 = s_uGetDataDuration(priv, pkt_type, need_ack); + + buf->wTimeStampOff = vnt_time_stamp_off(priv, rate); + + return buf->wDuration; +} + static u32 s_uFillDataHead(struct vnt_private *pDevice, u8 byPktType, u16 wCurrentRate, void *pTxDataHead, u32 cbFrameLength, u32 uDMAIdx, int bNeedAck, u8 byFBOption) @@ -565,19 +582,9 @@ static u32 s_uFillDataHead(struct vnt_private *pDevice, if (byFBOption != AUTO_FB_NONE) { struct vnt_tx_datahead_a_fb *pBuf = (struct vnt_tx_datahead_a_fb *)pTxDataHead; - //Get SignalField,ServiceField,Length - BBvCalculateParameter(pDevice, cbFrameLength, wCurrentRate, - byPktType, &pBuf->a); - //Get Duration and TimeStampOff - pBuf->wDuration = s_uGetDataDuration(pDevice, - byPktType, bNeedAck); - pBuf->wDuration_f0 = s_uGetDataDuration(pDevice, - byPktType, bNeedAck); - pBuf->wDuration_f1 = s_uGetDataDuration(pDevice, - byPktType, bNeedAck); - pBuf->wTimeStampOff = vnt_time_stamp_off(pDevice, - wCurrentRate); - return (pBuf->wDuration); + + return vnt_rxtx_datahead_a_fb(pDevice, byPktType, wCurrentRate, + pBuf, cbFrameLength, bNeedAck); } else { struct vnt_tx_datahead_ab *pBuf = (struct vnt_tx_datahead_ab *)pTxDataHead; @@ -728,7 +735,8 @@ static u16 vnt_rxtx_rts_a_fb_head(struct vnt_private *priv, vnt_fill_ieee80211_rts(priv, &buf->data, eth_hdr, buf->wDuration); - return 0; + return vnt_rxtx_datahead_a_fb(priv, pkt_type, current_rate, + &buf->data_head, frame_len, need_ack); } static u16 s_vFillRTSHead(struct vnt_private *pDevice, u8 byPktType, @@ -758,7 +766,7 @@ static u16 s_vFillRTSHead(struct vnt_private *pDevice, u8 byPktType, break; case PK_TYPE_11A: if (byFBOption) { - vnt_rxtx_rts_a_fb_head(pDevice, &head->rts_a_fb, + return vnt_rxtx_rts_a_fb_head(pDevice, &head->rts_a_fb, psEthHeader, byPktType, cbFrameLength, bNeedAck, wCurrentRate, byFBOption); break; @@ -1195,12 +1203,8 @@ static int s_bPacketToWirelessUsb(struct vnt_private *pDevice, u8 byPktType, } else { // Auto Fall Back if (bRTS == true) {//RTS_need - pvTxDataHd = (struct vnt_tx_datahead_a_fb *)(pbyTxBufferAddr + - wTxBufSize + sizeof(struct vnt_rrv_time_ab) + cbMICHDR + - sizeof(struct vnt_rts_a_fb)); cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_ab) + - cbMICHDR + sizeof(struct vnt_rts_a_fb) + - sizeof(struct vnt_tx_datahead_a_fb); + cbMICHDR + sizeof(struct vnt_rts_a_fb); } else if (bRTS == false) { //RTS_needless pvTxDataHd = (struct vnt_tx_datahead_a_fb *)(pbyTxBufferAddr + @@ -1228,8 +1232,9 @@ static int s_bPacketToWirelessUsb(struct vnt_private *pDevice, u8 byPktType, tx_buffer, &pMICHDR, cbMICHDR, cbFrameSize, bNeedACK, uDMAIdx, psEthHeader, bRTS); //Fill DataHead - uDuration |= s_uFillDataHead(pDevice, byPktType, wCurrentRate, pvTxDataHd, - cbFrameSize, uDMAIdx, bNeedACK, byFBOption); + if (pvTxDataHd) + uDuration |= s_uFillDataHead(pDevice, byPktType, wCurrentRate, + pvTxDataHd, cbFrameSize, uDMAIdx, bNeedACK, byFBOption); // Generate TX MAC Header s_vGenerateMACHeader(pDevice, pbyMacHdr, (u16)uDuration, psEthHeader, bNeedEncryption, byFragType, uDMAIdx, 0); diff --git a/drivers/staging/vt6656/rxtx.h b/drivers/staging/vt6656/rxtx.h index 0a022cf..3fd8507 100644 --- a/drivers/staging/vt6656/rxtx.h +++ b/drivers/staging/vt6656/rxtx.h @@ -149,6 +149,7 @@ struct vnt_rts_a_fb { u16 wRTSDuration_f0; u16 wRTSDuration_f1; struct ieee80211_rts data; + struct vnt_tx_datahead_a_fb data_head; } __packed; /* CTS buffer header */ -- 1.8.3.2