staging: vt6656: rxtx.c Parse struct vnt_tx_datahead_g
Parse struct vnt_tx_datahead_g from s_uFillDataHead and
move to struct vnt_rts_g/struct vnt_cts structure.
This removes pvTxDataHd pointer assignment.
The duration_id(uDuration) field is now returned in s_vGenerateTxParameter.
The return of s_uFillDataHead temporary or'ed to retain functionality of
other functions and is removed at the end of this patch series.
Since pvTxDataHd is now null a small vendor hack to vDMA0_tx_80211/csMgmt_xmit
to do with Disassociation-packet is also changed correct head position.
Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/staging/vt6656/rxtx.c b/drivers/staging/vt6656/rxtx.c
index c18861b..851b87b 100644
--- a/drivers/staging/vt6656/rxtx.c
+++ b/drivers/staging/vt6656/rxtx.c
@@ -511,6 +511,25 @@
return cpu_to_le16((u16)uDurTime);
}
+static u16 vnt_rxtx_datahead_g(struct vnt_private *priv, u8 pkt_type, u16 rate,
+ struct vnt_tx_datahead_g *buf, u32 frame_len, int need_ack)
+{
+ /* Get SignalField,ServiceField,Length */
+ BBvCalculateParameter(priv, frame_len, rate, pkt_type, &buf->a);
+ BBvCalculateParameter(priv, frame_len, priv->byTopCCKBasicRate,
+ PK_TYPE_11B, &buf->b);
+
+ /* Get Duration and TimeStamp */
+ buf->wDuration_a = s_uGetDataDuration(priv, pkt_type, need_ack);
+ buf->wDuration_b = s_uGetDataDuration(priv, PK_TYPE_11B, need_ack);
+
+ buf->wTimeStampOff_a = vnt_time_stamp_off(priv, rate);
+ buf->wTimeStampOff_b = vnt_time_stamp_off(priv,
+ priv->byTopCCKBasicRate);
+
+ return buf->wDuration_a;
+}
+
static u32 s_uFillDataHead(struct vnt_private *pDevice,
u8 byPktType, u16 wCurrentRate, void *pTxDataHead, u32 cbFrameLength,
u32 uDMAIdx, int bNeedAck, u8 byFBOption)
@@ -522,24 +541,7 @@
if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {
if (byFBOption == AUTO_FB_NONE) {
- struct vnt_tx_datahead_g *pBuf =
- (struct vnt_tx_datahead_g *)pTxDataHead;
- //Get SignalField,ServiceField,Length
- BBvCalculateParameter(pDevice, cbFrameLength, wCurrentRate,
- byPktType, &pBuf->a);
- BBvCalculateParameter(pDevice, cbFrameLength,
- pDevice->byTopCCKBasicRate, PK_TYPE_11B, &pBuf->b);
- //Get Duration and TimeStamp
- pBuf->wDuration_a = s_uGetDataDuration(pDevice,
- byPktType, bNeedAck);
- pBuf->wDuration_b = s_uGetDataDuration(pDevice,
- PK_TYPE_11B, bNeedAck);
-
- pBuf->wTimeStampOff_a = vnt_time_stamp_off(pDevice,
- wCurrentRate);
- pBuf->wTimeStampOff_b = vnt_time_stamp_off(pDevice,
- pDevice->byTopCCKBasicRate);
- return (pBuf->wDuration_a);
+ ;
} else {
// Auto Fallback
struct vnt_tx_datahead_g_fb *pBuf =
@@ -653,7 +655,8 @@
vnt_fill_ieee80211_rts(priv, &buf->data, eth_hdr, buf->wDuration_aa);
- return 0;
+ return vnt_rxtx_datahead_g(priv, pkt_type, current_rate,
+ &buf->data_head, frame_len, need_ack);
}
static u16 vnt_rxtx_rts_g_fb_head(struct vnt_private *priv,
@@ -750,7 +753,7 @@
case PK_TYPE_11GB:
case PK_TYPE_11GA:
if (byFBOption == AUTO_FB_NONE)
- vnt_rxtx_rts_g_head(pDevice, &head->rts_g,
+ return vnt_rxtx_rts_g_head(pDevice, &head->rts_g,
psEthHeader, byPktType, cbFrameLength,
bNeedAck, wCurrentRate, byFBOption);
else
@@ -817,6 +820,9 @@
pBuf->data.duration = pBuf->wDuration_ba;
pBuf->data.frame_control = TYPE_CTL_CTS;
memcpy(pBuf->data.ra, pDevice->abyCurrentNetAddr, ETH_ALEN);
+
+ return vnt_rxtx_datahead_g(pDevice, byPktType, wCurrentRate,
+ &pBuf->data_head, cbFrameLength, bNeedAck);
}
return 0;
@@ -898,7 +904,7 @@
}
/* Fill RTS */
- s_vFillRTSHead(pDevice, byPktType, head, cbFrameSize,
+ return s_vFillRTSHead(pDevice, byPktType, head, cbFrameSize,
bNeedACK, psEthHeader, wCurrentRate, byFBOption);
}
else {//RTS_needless, PCF mode
@@ -921,7 +927,7 @@
}
/* Fill CTS */
- s_vFillCTSHead(pDevice, uDMAIdx, byPktType, head,
+ return s_vFillCTSHead(pDevice, uDMAIdx, byPktType, head,
cbFrameSize, bNeedACK, wCurrentRate, byFBOption);
}
}
@@ -1153,20 +1159,12 @@
if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {//802.11g packet
if (byFBOption == AUTO_FB_NONE) {
if (bRTS == true) {//RTS_need
- pvTxDataHd = (struct vnt_tx_datahead_g *) (pbyTxBufferAddr +
- wTxBufSize + sizeof(struct vnt_rrv_time_rts) +
- cbMICHDR + sizeof(struct vnt_rts_g));
cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_rts) +
- cbMICHDR + sizeof(struct vnt_rts_g) +
- sizeof(struct vnt_tx_datahead_g);
+ cbMICHDR + sizeof(struct vnt_rts_g);
}
else { //RTS_needless
- pvTxDataHd = (struct vnt_tx_datahead_g *)(pbyTxBufferAddr +
- wTxBufSize + sizeof(struct vnt_rrv_time_cts) +
- cbMICHDR + sizeof(struct vnt_cts));
cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_cts) +
- cbMICHDR + sizeof(struct vnt_cts) +
- sizeof(struct vnt_tx_datahead_g);
+ cbMICHDR + sizeof(struct vnt_cts);
}
} else {
// Auto Fall Back
@@ -1235,13 +1233,13 @@
//uDMAIdx = TYPE_AC0DMA;
//pTxBufHead = (PSTxBufHead) &(pTxBufHead->adwTxKey[0]);
- //Fill FIFO,RrvTime,RTS,and CTS
- s_vGenerateTxParameter(pDevice, byPktType, wCurrentRate,
- tx_buffer, &pMICHDR, cbMICHDR,
- cbFrameSize, bNeedACK, uDMAIdx, psEthHeader, bRTS);
+ /* Fill FIFO, RrvTime, RTS and CTS */
+ uDuration = s_vGenerateTxParameter(pDevice, byPktType, wCurrentRate,
+ tx_buffer, &pMICHDR, cbMICHDR,
+ cbFrameSize, bNeedACK, uDMAIdx, psEthHeader, bRTS);
//Fill DataHead
- uDuration = s_uFillDataHead(pDevice, byPktType, wCurrentRate, pvTxDataHd, cbFrameSize, uDMAIdx, bNeedACK,
- byFBOption);
+ 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);
@@ -1607,10 +1605,8 @@
//Set RrvTime/RTS/CTS Buffer
if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {//802.11g packet
- pvTxDataHd = (struct vnt_tx_datahead_g *)(pbyTxBufferAddr + wTxBufSize +
- sizeof(struct vnt_rrv_time_cts) + sizeof(struct vnt_cts));
cbHeaderSize = wTxBufSize + sizeof(struct vnt_rrv_time_cts) +
- sizeof(struct vnt_cts) + sizeof(struct vnt_tx_datahead_g);
+ sizeof(struct vnt_cts);
}
else { // 802.11a/b packet
pvTxDataHd = (struct vnt_tx_datahead_ab *) (pbyTxBufferAddr +
@@ -1631,13 +1627,13 @@
pTxBufHead->wFragCtl |= (u16)FRAGCTL_NONFRAG;
/* Fill FIFO,RrvTime,RTS,and CTS */
- s_vGenerateTxParameter(pDevice, byPktType, wCurrentRate,
+ uDuration = s_vGenerateTxParameter(pDevice, byPktType, wCurrentRate,
pTX_Buffer, &pMICHDR, 0,
cbFrameSize, bNeedACK, TYPE_TXDMA0, &sEthHeader, false);
//Fill DataHead
- uDuration = s_uFillDataHead(pDevice, byPktType, wCurrentRate, pvTxDataHd, cbFrameSize, TYPE_TXDMA0, bNeedACK,
- AUTO_FB_NONE);
+ uDuration |= s_uFillDataHead(pDevice, byPktType, wCurrentRate, pvTxDataHd,
+ cbFrameSize, TYPE_TXDMA0, bNeedACK, AUTO_FB_NONE);
pMACHeader = (struct ieee80211_hdr *) (pbyTxBufferAddr + cbHeaderSize);
@@ -1701,9 +1697,11 @@
// in the same place of other packet's Duration-field).
// And it will cause Cisco-AP to issue Disassociation-packet
if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {
- ((struct vnt_tx_datahead_g *)pvTxDataHd)->wDuration_a =
+ struct vnt_tx_datahead_g *data_head = &pTX_Buffer->tx_head.
+ tx_cts.tx.head.cts_g.data_head;
+ data_head->wDuration_a =
cpu_to_le16(pPacket->p80211Header->sA2.wDurationID);
- ((struct vnt_tx_datahead_g *)pvTxDataHd)->wDuration_b =
+ data_head->wDuration_b =
cpu_to_le16(pPacket->p80211Header->sA2.wDurationID);
} else {
((struct vnt_tx_datahead_ab *)pvTxDataHd)->wDuration =
@@ -2010,11 +2008,8 @@
//the rest of pTxBufHead->wFragCtl:FragTyp will be set later in s_vFillFragParameter()
if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {//802.11g packet
- pvTxDataHd = (struct vnt_tx_datahead_g *) (pbyTxBufferAddr +
- wTxBufSize + sizeof(struct vnt_rrv_time_cts) + cbMICHDR +
- sizeof(struct vnt_cts));
cbHeaderSize = wTxBufSize + sizeof(struct vnt_rrv_time_cts) + cbMICHDR +
- sizeof(struct vnt_cts) + sizeof(struct vnt_tx_datahead_g);
+ sizeof(struct vnt_cts);
}
else {//802.11a/b packet
@@ -2035,13 +2030,13 @@
pTxBufHead->wFragCtl |= (u16)FRAGCTL_NONFRAG;
/* Fill FIFO,RrvTime,RTS,and CTS */
- s_vGenerateTxParameter(pDevice, byPktType, wCurrentRate,
+ uDuration = s_vGenerateTxParameter(pDevice, byPktType, wCurrentRate,
pTX_Buffer, &pMICHDR, cbMICHDR,
cbFrameSize, bNeedACK, TYPE_TXDMA0, &sEthHeader, false);
//Fill DataHead
- uDuration = s_uFillDataHead(pDevice, byPktType, wCurrentRate, pvTxDataHd, cbFrameSize, TYPE_TXDMA0, bNeedACK,
- AUTO_FB_NONE);
+ uDuration |= s_uFillDataHead(pDevice, byPktType, wCurrentRate, pvTxDataHd,
+ cbFrameSize, TYPE_TXDMA0, bNeedACK, AUTO_FB_NONE);
pMACHeader = (struct ieee80211_hdr *) (pbyTxBufferAddr + cbHeaderSize);
@@ -2151,9 +2146,11 @@
// in the same place of other packet's Duration-field).
// And it will cause Cisco-AP to issue Disassociation-packet
if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {
- ((struct vnt_tx_datahead_g *)pvTxDataHd)->wDuration_a =
+ struct vnt_tx_datahead_g *data_head = &pTX_Buffer->tx_head.
+ tx_cts.tx.head.cts_g.data_head;
+ data_head->wDuration_a =
cpu_to_le16(p80211Header->sA2.wDurationID);
- ((struct vnt_tx_datahead_g *)pvTxDataHd)->wDuration_b =
+ data_head->wDuration_b =
cpu_to_le16(p80211Header->sA2.wDurationID);
} else {
((struct vnt_tx_datahead_ab *)pvTxDataHd)->wDuration =
diff --git a/drivers/staging/vt6656/rxtx.h b/drivers/staging/vt6656/rxtx.h
index bbda9a3..ea20e94 100644
--- a/drivers/staging/vt6656/rxtx.h
+++ b/drivers/staging/vt6656/rxtx.h
@@ -117,6 +117,7 @@
u16 wDuration_bb;
u16 wReserved;
struct ieee80211_rts data;
+ struct vnt_tx_datahead_g data_head;
} __packed;
struct vnt_rts_g_fb {
@@ -156,6 +157,7 @@
u16 wReserved;
struct ieee80211_cts data;
u16 reserved2;
+ struct vnt_tx_datahead_g data_head;
} __packed;
struct vnt_cts_fb {