break;
}
- memcpy(&dest, frag_hdr->addr1, ETH_ALEN);
- if (is_multicast_ether_addr(dest)) {
- Duration = 0;
- RtsDur = 0;
- bRTSEnable = 0;
+ memcpy(&dest, frag_hdr->addr1, ETH_ALEN);
+ if (is_multicast_ether_addr(dest)) {
+ Duration = 0;
+ RtsDur = 0;
+ bRTSEnable = 0;
+ bCTSEnable = 0;
+
+ ThisFrameTime = ComputeTxTime(len + sCrcLng,
+ rtl8180_rate2rate(rate), 0, bUseShortPreamble);
+ TxDescDuration = ThisFrameTime;
+ } else { /* Unicast packet */
+ u16 AckTime;
+
+ /* YJ,add,080828,for Keep alive */
+ priv->NumTxUnicast++;
+
+ /* Figure out ACK rate according to BSS basic rate
+ * and Tx rate.
+ * AckCTSLng = 14 use 1M bps send
+ */
+ AckTime = ComputeTxTime(14, 10, 0, 0);
+
+ if (((len + sCrcLng) > priv->rts) && priv->rts) { /* RTS/CTS. */
+ u16 RtsTime, CtsTime;
+ /* u16 CtsRate; */
+ bRTSEnable = 1;
bCTSEnable = 0;
- ThisFrameTime = ComputeTxTime(len + sCrcLng, rtl8180_rate2rate(rate),
- 0, bUseShortPreamble);
- TxDescDuration = ThisFrameTime;
- } else { /* Unicast packet */
- u16 AckTime;
-
- /* YJ,add,080828,for Keep alive */
- priv->NumTxUnicast++;
-
- /* Figure out ACK rate according to BSS basic rate
- * and Tx rate. */
- AckTime = ComputeTxTime(14, 10, 0, 0); /* AckCTSLng = 14 use 1M bps send */
-
- if (((len + sCrcLng) > priv->rts) && priv->rts) { /* RTS/CTS. */
- u16 RtsTime, CtsTime;
- /* u16 CtsRate; */
- bRTSEnable = 1;
- bCTSEnable = 0;
-
- /* Rate and time required for RTS. */
- RtsTime = ComputeTxTime(sAckCtsLng/8, priv->ieee80211->basic_rate, 0, 0);
- /* Rate and time required for CTS. */
- CtsTime = ComputeTxTime(14, 10, 0, 0); /* AckCTSLng = 14 use 1M bps send */
-
- /* Figure out time required to transmit this frame. */
- ThisFrameTime = ComputeTxTime(len + sCrcLng,
- rtl8180_rate2rate(rate),
- 0,
- bUseShortPreamble);
-
- /* RTS-CTS-ThisFrame-ACK. */
- RtsDur = CtsTime + ThisFrameTime + AckTime + 3*aSifsTime;
-
- TxDescDuration = RtsTime + RtsDur;
- } else { /* Normal case. */
- bCTSEnable = 0;
- bRTSEnable = 0;
- RtsDur = 0;
-
- ThisFrameTime = ComputeTxTime(len + sCrcLng, rtl8180_rate2rate(rate),
- 0, bUseShortPreamble);
- TxDescDuration = ThisFrameTime + aSifsTime + AckTime;
- }
+ /* Rate and time required for RTS. */
+ RtsTime = ComputeTxTime(sAckCtsLng / 8,
+ priv->ieee80211->basic_rate, 0, 0);
- if (!(frag_hdr->frame_control & IEEE80211_FCTL_MOREFRAGS)) {
- /* ThisFrame-ACK. */
- Duration = aSifsTime + AckTime;
- } else { /* One or more fragments remained. */
- u16 NextFragTime;
- NextFragTime = ComputeTxTime(len + sCrcLng, /* pretend following packet length equal current packet */
- rtl8180_rate2rate(rate),
- 0,
- bUseShortPreamble);
-
- /* ThisFrag-ACk-NextFrag-ACK. */
- Duration = NextFragTime + 3*aSifsTime + 2*AckTime;
- }
+ /* Rate and time required for CTS.
+ * AckCTSLng = 14 use 1M bps send
+ */
+ CtsTime = ComputeTxTime(14, 10, 0, 0);
+
+ /* Figure out time required to transmit this frame. */
+ ThisFrameTime = ComputeTxTime(len + sCrcLng,
+ rtl8180_rate2rate(rate), 0,
+ bUseShortPreamble);
+
+ /* RTS-CTS-ThisFrame-ACK. */
+ RtsDur = CtsTime + ThisFrameTime +
+ AckTime + 3 * aSifsTime;
+
+ TxDescDuration = RtsTime + RtsDur;
+ } else { /* Normal case. */
+ bCTSEnable = 0;
+ bRTSEnable = 0;
+ RtsDur = 0;
+
+ ThisFrameTime = ComputeTxTime(len + sCrcLng,
+ rtl8180_rate2rate(rate), 0, bUseShortPreamble);
+ TxDescDuration = ThisFrameTime + aSifsTime + AckTime;
+ }
+
+ if (!(frag_hdr->frame_control & IEEE80211_FCTL_MOREFRAGS)) {
+ /* ThisFrame-ACK. */
+ Duration = aSifsTime + AckTime;
+ } else { /* One or more fragments remained. */
+ u16 NextFragTime;
+
+ /* pretend following packet length = current packet */
+ NextFragTime = ComputeTxTime(len + sCrcLng,
+ rtl8180_rate2rate(rate), 0, bUseShortPreamble);
+
+ /* ThisFrag-ACk-NextFrag-ACK. */
+ Duration = NextFragTime + 3 * aSifsTime + 2 * AckTime;
+ }
- } /* End of Unicast packet */
+ } /* End of Unicast packet */
- frag_hdr->duration_id = Duration;
+ frag_hdr->duration_id = Duration;
buflen = priv->txbuffsize;
remain = len;