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Commit f84cdf65 authored by Malcolm Priestley's avatar Malcolm Priestley Committed by Greg Kroah-Hartman
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staging: vt6656: rxtx.c s_bPacketToWirelessUsb set fallback tx rates 

Set the two TX fall back rates in s_bPacketToWirelessUsb and
pass to private area of driver in variables tx_rate_fb0
and tx_rate_fb1 from the wFB_Opt0/wFB_Opt1 array.

Apply these rates were needed in the TX structure and
remove byFBOption settings in s_uGetRTSCTSDuration.

This greatly simplifies s_uGetRTSCTSDuration and
more future flexibility of setting rates from
upper levels of driver.
Signed-off-by: default avatarMalcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 4a75ffa8
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Showing with 49 additions and 53 deletions
drivers/staging/vt6656/device.h
View file @ f84cdf65
......@@ -579,6 +579,9 @@ struct vnt_private {
u8 abyOFDMAPwrTbl[42];
u16 wCurrentRate;
u16 tx_rate_fb0;
u16 tx_rate_fb1;
u16 wRTSThreshold;
u16 wFragmentationThreshold;
u8 byShortRetryLimit;
......
drivers/staging/vt6656/rxtx.c
View file @ f84cdf65
......@@ -450,54 +450,36 @@ static u16 s_uGetRTSCTSDuration(struct vnt_private *pDevice, u8 byDurType,
case RTSDUR_BA_F0: //RTSDuration_ba_f0
uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopCCKBasicRate);
if ((byFBOption == AUTO_FB_0) && (wRate >= RATE_18M) && (wRate <=RATE_54M)) {
uDurTime = uCTSTime + 2*pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt0[FB_RATE0][wRate-RATE_18M], bNeedAck);
} else if ((byFBOption == AUTO_FB_1) && (wRate >= RATE_18M) && (wRate <=RATE_54M)) {
uDurTime = uCTSTime + 2*pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt1[FB_RATE0][wRate-RATE_18M], bNeedAck);
}
uDurTime = uCTSTime + 2 * pDevice->uSIFS + s_uGetTxRsvTime(pDevice,
byPktType, cbFrameLength, wRate, bNeedAck);
break;
case RTSDUR_AA_F0: //RTSDuration_aa_f0
uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
if ((byFBOption == AUTO_FB_0) && (wRate >= RATE_18M) && (wRate <=RATE_54M)) {
uDurTime = uCTSTime + 2*pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt0[FB_RATE0][wRate-RATE_18M], bNeedAck);
} else if ((byFBOption == AUTO_FB_1) && (wRate >= RATE_18M) && (wRate <=RATE_54M)) {
uDurTime = uCTSTime + 2*pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt1[FB_RATE0][wRate-RATE_18M], bNeedAck);
}
uDurTime = uCTSTime + 2 * pDevice->uSIFS + s_uGetTxRsvTime(pDevice,
byPktType, cbFrameLength, wRate, bNeedAck);
break;
case RTSDUR_BA_F1: //RTSDuration_ba_f1
uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopCCKBasicRate);
if ((byFBOption == AUTO_FB_0) && (wRate >= RATE_18M) && (wRate <=RATE_54M)) {
uDurTime = uCTSTime + 2*pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt0[FB_RATE1][wRate-RATE_18M], bNeedAck);
} else if ((byFBOption == AUTO_FB_1) && (wRate >= RATE_18M) && (wRate <=RATE_54M)) {
uDurTime = uCTSTime + 2*pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt1[FB_RATE1][wRate-RATE_18M], bNeedAck);
}
uDurTime = uCTSTime + 2 * pDevice->uSIFS + s_uGetTxRsvTime(pDevice,
byPktType, cbFrameLength, wRate, bNeedAck);
break;
case RTSDUR_AA_F1: //RTSDuration_aa_f1
uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
if ((byFBOption == AUTO_FB_0) && (wRate >= RATE_18M) && (wRate <=RATE_54M)) {
uDurTime = uCTSTime + 2*pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt0[FB_RATE1][wRate-RATE_18M], bNeedAck);
} else if ((byFBOption == AUTO_FB_1) && (wRate >= RATE_18M) && (wRate <=RATE_54M)) {
uDurTime = uCTSTime + 2*pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt1[FB_RATE1][wRate-RATE_18M], bNeedAck);
}
uDurTime = uCTSTime + 2 * pDevice->uSIFS + s_uGetTxRsvTime(pDevice,
byPktType, cbFrameLength, wRate, bNeedAck);
break;
case CTSDUR_BA_F0: //CTSDuration_ba_f0
if ((byFBOption == AUTO_FB_0) && (wRate >= RATE_18M) && (wRate <=RATE_54M)) {
uDurTime = pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt0[FB_RATE0][wRate-RATE_18M], bNeedAck);
} else if ((byFBOption == AUTO_FB_1) && (wRate >= RATE_18M) && (wRate <=RATE_54M)) {
uDurTime = pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt1[FB_RATE0][wRate-RATE_18M], bNeedAck);
}
uDurTime = pDevice->uSIFS + s_uGetTxRsvTime(pDevice,
byPktType, cbFrameLength, wRate, bNeedAck);
break;
case CTSDUR_BA_F1: //CTSDuration_ba_f1
if ((byFBOption == AUTO_FB_0) && (wRate >= RATE_18M) && (wRate <=RATE_54M)) {
uDurTime = pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt0[FB_RATE1][wRate-RATE_18M], bNeedAck);
} else if ((byFBOption == AUTO_FB_1) && (wRate >= RATE_18M) && (wRate <=RATE_54M)) {
uDurTime = pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt1[FB_RATE1][wRate-RATE_18M], bNeedAck);
}
uDurTime = pDevice->uSIFS + s_uGetTxRsvTime(pDevice,
byPktType, cbFrameLength, wRate, bNeedAck);
break;
default:
......@@ -648,13 +630,13 @@ static u16 vnt_rxtx_rts_g_fb_head(struct vnt_private *priv,
buf->wRTSDuration_ba_f0 = s_uGetRTSCTSDuration(priv, RTSDUR_BA_F0,
frame_len, pkt_type, current_rate, need_ack, fb_option);
frame_len, pkt_type, priv->tx_rate_fb0, need_ack, fb_option);
buf->wRTSDuration_aa_f0 = s_uGetRTSCTSDuration(priv, RTSDUR_AA_F0,
frame_len, pkt_type, current_rate, need_ack, fb_option);
frame_len, pkt_type, priv->tx_rate_fb0, need_ack, fb_option);
buf->wRTSDuration_ba_f1 = s_uGetRTSCTSDuration(priv, RTSDUR_BA_F1,
frame_len, pkt_type, current_rate, need_ack, fb_option);
frame_len, pkt_type, priv->tx_rate_fb1, need_ack, fb_option);
buf->wRTSDuration_aa_f1 = s_uGetRTSCTSDuration(priv, RTSDUR_AA_F1,
frame_len, pkt_type, current_rate, need_ack, fb_option);
frame_len, pkt_type, priv->tx_rate_fb1, need_ack, fb_option);
vnt_fill_ieee80211_rts(priv, &buf->data, eth_hdr, buf->wDuration_aa);
......@@ -695,10 +677,10 @@ static u16 vnt_rxtx_rts_a_fb_head(struct vnt_private *priv,
pkt_type, current_rate, need_ack, fb_option);
buf->wRTSDuration_f0 = s_uGetRTSCTSDuration(priv, RTSDUR_AA_F0,
frame_len, pkt_type, current_rate, need_ack, fb_option);
frame_len, pkt_type, priv->tx_rate_fb0, need_ack, fb_option);
buf->wRTSDuration_f1 = s_uGetRTSCTSDuration(priv, RTSDUR_AA_F1,
frame_len, pkt_type, current_rate, need_ack, fb_option);
frame_len, pkt_type, priv->tx_rate_fb1, need_ack, fb_option);
vnt_fill_ieee80211_rts(priv, &buf->data, eth_hdr, buf->wDuration);
......@@ -767,12 +749,12 @@ static u16 s_vFillCTSHead(struct vnt_private *pDevice, u32 uDMAIdx,
wCurrentRate, bNeedAck, byFBOption);
/* Get CTSDuration_ba_f0 */
pBuf->wCTSDuration_ba_f0 = s_uGetRTSCTSDuration(pDevice,
CTSDUR_BA_F0, cbFrameLength, byPktType, wCurrentRate,
bNeedAck, byFBOption);
CTSDUR_BA_F0, cbFrameLength, byPktType,
pDevice->tx_rate_fb0, bNeedAck, byFBOption);
/* Get CTSDuration_ba_f1 */
pBuf->wCTSDuration_ba_f1 = s_uGetRTSCTSDuration(pDevice,
CTSDUR_BA_F1, cbFrameLength, byPktType, wCurrentRate,
bNeedAck, byFBOption);
CTSDUR_BA_F1, cbFrameLength, byPktType,
pDevice->tx_rate_fb1, bNeedAck, byFBOption);
/* Get CTS Frame body */
pBuf->data.duration = pBuf->wDuration_ba;
pBuf->data.frame_control = TYPE_CTL_CTS;
......@@ -1076,13 +1058,24 @@ static int s_bPacketToWirelessUsb(struct vnt_private *pDevice, u8 byPktType,
pTxBufHead->wFIFOCtl |= FIFOCTL_GRPACK;
}
//Set Auto Fallback Ctl
/* Set Auto Fallback Ctl */
if (wCurrentRate >= RATE_18M) {
if (pDevice->byAutoFBCtrl == AUTO_FB_0) {
pTxBufHead->wFIFOCtl |= FIFOCTL_AUTO_FB_0;
pDevice->tx_rate_fb0 =
wFB_Opt0[FB_RATE0][wCurrentRate - RATE_18M];
pDevice->tx_rate_fb1 =
wFB_Opt0[FB_RATE1][wCurrentRate - RATE_18M];
byFBOption = AUTO_FB_0;
} else if (pDevice->byAutoFBCtrl == AUTO_FB_1) {
pTxBufHead->wFIFOCtl |= FIFOCTL_AUTO_FB_1;
pDevice->tx_rate_fb0 =
wFB_Opt1[FB_RATE0][wCurrentRate - RATE_18M];
pDevice->tx_rate_fb1 =
wFB_Opt1[FB_RATE1][wCurrentRate - RATE_18M];
byFBOption = AUTO_FB_1;
}
}
......
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