diff options
author | Malcolm Priestley <tvboxspy@gmail.com> | 2013-10-15 21:00:09 +0100 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-10-16 12:40:36 -0700 |
commit | f84cdf65a79b808217d9e8b82ea12d170cf66b3d (patch) | |
tree | 534efc0c832812f97d62beb986966487ead1ff5b /drivers/staging/vt6656 | |
parent | 4a75ffa8adce46dee5fdd362577ba22778e886e8 (diff) | |
download | linux-f84cdf65a79b808217d9e8b82ea12d170cf66b3d.tar.bz2 |
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: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/vt6656')
-rw-r--r-- | drivers/staging/vt6656/device.h | 3 | ||||
-rw-r--r-- | drivers/staging/vt6656/rxtx.c | 99 |
2 files changed, 49 insertions, 53 deletions
diff --git a/drivers/staging/vt6656/device.h b/drivers/staging/vt6656/device.h index 95b181d6c5b8..62b7de19b371 100644 --- a/drivers/staging/vt6656/device.h +++ b/drivers/staging/vt6656/device.h @@ -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; diff --git a/drivers/staging/vt6656/rxtx.c b/drivers/staging/vt6656/rxtx.c index 821b2e16b6fa..340473075186 100644 --- a/drivers/staging/vt6656/rxtx.c +++ b/drivers/staging/vt6656/rxtx.c @@ -450,55 +450,37 @@ 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); - } - break; + 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); - } - break; + 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); - } - break; + uDurTime = pDevice->uSIFS + s_uGetTxRsvTime(pDevice, + byPktType, cbFrameLength, wRate, bNeedAck); + break; default: break; @@ -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; @@ -1076,16 +1058,27 @@ static int s_bPacketToWirelessUsb(struct vnt_private *pDevice, u8 byPktType, pTxBufHead->wFIFOCtl |= FIFOCTL_GRPACK; } - //Set Auto Fallback Ctl - if (wCurrentRate >= RATE_18M) { - if (pDevice->byAutoFBCtrl == AUTO_FB_0) { - pTxBufHead->wFIFOCtl |= FIFOCTL_AUTO_FB_0; - byFBOption = AUTO_FB_0; - } else if (pDevice->byAutoFBCtrl == AUTO_FB_1) { - pTxBufHead->wFIFOCtl |= FIFOCTL_AUTO_FB_1; - byFBOption = AUTO_FB_1; - } - } + /* 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; + } + } if (bSoftWEP != true) { if ((bNeedEncryption) && (pTransmitKey != NULL)) { //WEP enabled |