rtlwifi: rtl8192cu: Add routine trx

Add routine rtlwifi/rtl8192cu/trx.c. This routine differs from the rtl8192ce
file of the same name.

Signed-off-by: George <george0505@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 684 insertions, 0 deletions

diff --git a/drivers/net/wireless/rtlwifi/rtl8192cu/trx.c b/drivers/net/wireless/rtlwifi/rtl8192cu/trx.c
new file mode 100644
index 00000000000..9855c3e0a4b
--- /dev/null
+++ b/drivers/net/wireless/rtlwifi/rtl8192cu/trx.c
@@ -0,0 +1,684 @@
+/******************************************************************************
+ *
+ * Copyright(c) 2009-2010  Realtek Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
+ *
+ * The full GNU General Public License is included in this distribution in the
+ * file called LICENSE.
+ *
+ * Contact Information:
+ * wlanfae <wlanfae@realtek.com>
+ * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
+ * Hsinchu 300, Taiwan.
+ *
+ * Larry Finger <Larry.Finger@lwfinger.net>
+ *
+ *****************************************************************************/
+
+#include "../wifi.h"
+#include "../usb.h"
+#include "../ps.h"
+#include "../base.h"
+#include "reg.h"
+#include "def.h"
+#include "phy.h"
+#include "rf.h"
+#include "dm.h"
+#include "mac.h"
+#include "trx.h"
+
+static int _ConfigVerTOutEP(struct ieee80211_hw *hw)
+{
+	u8 ep_cfg, txqsele;
+	u8 ep_nums = 0;
+
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+	struct rtl_usb_priv *usb_priv = rtl_usbpriv(hw);
+	struct rtl_usb *rtlusb = rtl_usbdev(usb_priv);
+
+	rtlusb->out_queue_sel = 0;
+	ep_cfg = rtl_read_byte(rtlpriv, REG_TEST_SIE_OPTIONAL);
+	ep_cfg = (ep_cfg & USB_TEST_EP_MASK) >> USB_TEST_EP_SHIFT;
+	switch (ep_cfg)	{
+	case 0:		/* 2 bulk OUT, 1 bulk IN */
+	case 3:
+		rtlusb->out_queue_sel  = TX_SELE_HQ | TX_SELE_LQ;
+		ep_nums = 2;
+		break;
+	case 1:	/* 1 bulk IN/OUT => map all endpoint to Low queue */
+	case 2:	/* 1 bulk IN, 1 bulk OUT => map all endpoint to High queue */
+		txqsele = rtl_read_byte(rtlpriv, REG_TEST_USB_TXQS);
+		if (txqsele & 0x0F) /* /map all endpoint to High queue */
+			rtlusb->out_queue_sel =  TX_SELE_HQ;
+		else if (txqsele&0xF0) /* map all endpoint to Low queue */
+			rtlusb->out_queue_sel =  TX_SELE_LQ;
+		ep_nums = 1;
+		break;
+	default:
+		break;
+	}
+	return (rtlusb->out_ep_nums == ep_nums) ? 0 : -EINVAL;
+}
+
+static int _ConfigVerNOutEP(struct ieee80211_hw *hw)
+{
+	u8 ep_cfg;
+	u8 ep_nums = 0;
+
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+	struct rtl_usb_priv *usb_priv = rtl_usbpriv(hw);
+	struct rtl_usb *rtlusb = rtl_usbdev(usb_priv);
+
+	rtlusb->out_queue_sel = 0;
+	/* Normal and High queue */
+	ep_cfg =  rtl_read_byte(rtlpriv, (REG_NORMAL_SIE_EP + 1));
+	if (ep_cfg & USB_NORMAL_SIE_EP_MASK) {
+		rtlusb->out_queue_sel |= TX_SELE_HQ;
+		ep_nums++;
+	}
+	if ((ep_cfg >> USB_NORMAL_SIE_EP_SHIFT) & USB_NORMAL_SIE_EP_MASK) {
+		rtlusb->out_queue_sel |= TX_SELE_NQ;
+		ep_nums++;
+	}
+	/* Low queue */
+	ep_cfg =  rtl_read_byte(rtlpriv, (REG_NORMAL_SIE_EP + 2));
+	if (ep_cfg & USB_NORMAL_SIE_EP_MASK) {
+		rtlusb->out_queue_sel |= TX_SELE_LQ;
+		ep_nums++;
+	}
+	return (rtlusb->out_ep_nums == ep_nums) ? 0 : -EINVAL;
+}
+
+static void _TwoOutEpMapping(struct ieee80211_hw *hw, bool bIsChipB,
+			     bool  bwificfg, struct rtl_ep_map *ep_map)
+{
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+
+	if (bwificfg) { /* for WMM */
+		RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
+			 ("USB Chip-B & WMM Setting.....\n"));
+		ep_map->ep_mapping[RTL_TXQ_BE]	= 2;
+		ep_map->ep_mapping[RTL_TXQ_BK]	= 3;
+		ep_map->ep_mapping[RTL_TXQ_VI]	= 3;
+		ep_map->ep_mapping[RTL_TXQ_VO] = 2;
+		ep_map->ep_mapping[RTL_TXQ_MGT] = 2;
+		ep_map->ep_mapping[RTL_TXQ_BCN] = 2;
+		ep_map->ep_mapping[RTL_TXQ_HI]	= 2;
+	} else { /* typical setting */
+		RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
+			 ("USB typical Setting.....\n"));
+		ep_map->ep_mapping[RTL_TXQ_BE]	= 3;
+		ep_map->ep_mapping[RTL_TXQ_BK]	= 3;
+		ep_map->ep_mapping[RTL_TXQ_VI]	= 2;
+		ep_map->ep_mapping[RTL_TXQ_VO]	= 2;
+		ep_map->ep_mapping[RTL_TXQ_MGT] = 2;
+		ep_map->ep_mapping[RTL_TXQ_BCN] = 2;
+		ep_map->ep_mapping[RTL_TXQ_HI]	= 2;
+	}
+}
+
+static void _ThreeOutEpMapping(struct ieee80211_hw *hw, bool  bwificfg,
+			       struct rtl_ep_map *ep_map)
+{
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+	if (bwificfg) { /* for WMM */
+		RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
+			 ("USB 3EP Setting for WMM.....\n"));
+		ep_map->ep_mapping[RTL_TXQ_BE]	= 5;
+		ep_map->ep_mapping[RTL_TXQ_BK]	= 3;
+		ep_map->ep_mapping[RTL_TXQ_VI]	= 3;
+		ep_map->ep_mapping[RTL_TXQ_VO]	= 2;
+		ep_map->ep_mapping[RTL_TXQ_MGT] = 2;
+		ep_map->ep_mapping[RTL_TXQ_BCN] = 2;
+		ep_map->ep_mapping[RTL_TXQ_HI]	= 2;
+	} else { /* typical setting */
+		RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
+			 ("USB 3EP Setting for typical.....\n"));
+		ep_map->ep_mapping[RTL_TXQ_BE]	= 5;
+		ep_map->ep_mapping[RTL_TXQ_BK]	= 5;
+		ep_map->ep_mapping[RTL_TXQ_VI]	= 3;
+		ep_map->ep_mapping[RTL_TXQ_VO]	= 2;
+		ep_map->ep_mapping[RTL_TXQ_MGT] = 2;
+		ep_map->ep_mapping[RTL_TXQ_BCN] = 2;
+		ep_map->ep_mapping[RTL_TXQ_HI]	= 2;
+	}
+}
+
+static void _OneOutEpMapping(struct ieee80211_hw *hw, struct rtl_ep_map *ep_map)
+{
+	ep_map->ep_mapping[RTL_TXQ_BE]	= 2;
+	ep_map->ep_mapping[RTL_TXQ_BK]	= 2;
+	ep_map->ep_mapping[RTL_TXQ_VI]	= 2;
+	ep_map->ep_mapping[RTL_TXQ_VO] = 2;
+	ep_map->ep_mapping[RTL_TXQ_MGT] = 2;
+	ep_map->ep_mapping[RTL_TXQ_BCN] = 2;
+	ep_map->ep_mapping[RTL_TXQ_HI]	= 2;
+}
+static int _out_ep_mapping(struct ieee80211_hw *hw)
+{
+	int err = 0;
+	bool bIsChipN, bwificfg = false;
+	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
+	struct rtl_usb_priv *usb_priv = rtl_usbpriv(hw);
+	struct rtl_usb *rtlusb = rtl_usbdev(usb_priv);
+	struct rtl_ep_map *ep_map = &(rtlusb->ep_map);
+
+	bIsChipN = IS_NORMAL_CHIP(rtlhal->version);
+	switch (rtlusb->out_ep_nums) {
+	case 2:
+		_TwoOutEpMapping(hw, bIsChipN, bwificfg, ep_map);
+		break;
+	case 3:
+		/* Test chip doesn't support three out EPs. */
+		if (!bIsChipN) {
+			err  =  -EINVAL;
+			goto err_out;
+		}
+		_ThreeOutEpMapping(hw, bIsChipN, ep_map);
+		break;
+	case 1:
+		_OneOutEpMapping(hw, ep_map);
+		break;
+	default:
+		err  =  -EINVAL;
+		break;
+	}
+err_out:
+	return err;
+
+}
+/* endpoint mapping */
+int  rtl8192cu_endpoint_mapping(struct ieee80211_hw *hw)
+{
+	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
+	int error = 0;
+	if (likely(IS_NORMAL_CHIP(rtlhal->version)))
+		error = _ConfigVerNOutEP(hw);
+	else
+		error = _ConfigVerTOutEP(hw);
+	if (error)
+		goto err_out;
+	error = _out_ep_mapping(hw);
+	if (error)
+		goto err_out;
+err_out:
+	return error;
+}
+
+u16 rtl8192cu_mq_to_hwq(__le16 fc, u16 mac80211_queue_index)
+{
+	u16 hw_queue_index;
+
+	if (unlikely(ieee80211_is_beacon(fc))) {
+		hw_queue_index = RTL_TXQ_BCN;
+		goto out;
+	}
+	if (ieee80211_is_mgmt(fc)) {
+		hw_queue_index = RTL_TXQ_MGT;
+		goto out;
+	}
+	switch (mac80211_queue_index) {
+	case 0:
+		hw_queue_index = RTL_TXQ_VO;
+		break;
+	case 1:
+		hw_queue_index = RTL_TXQ_VI;
+		break;
+	case 2:
+		hw_queue_index = RTL_TXQ_BE;
+		break;
+	case 3:
+		hw_queue_index = RTL_TXQ_BK;
+		break;
+	default:
+		hw_queue_index = RTL_TXQ_BE;
+		RT_ASSERT(false, ("QSLT_BE queue, skb_queue:%d\n",
+			  mac80211_queue_index));
+		break;
+	}
+out:
+	return hw_queue_index;
+}
+
+static enum rtl_desc_qsel _rtl8192cu_mq_to_descq(struct ieee80211_hw *hw,
+					 __le16 fc, u16 mac80211_queue_index)
+{
+	enum rtl_desc_qsel qsel;
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+
+	if (unlikely(ieee80211_is_beacon(fc))) {
+		qsel = QSLT_BEACON;
+		goto out;
+	}
+	if (ieee80211_is_mgmt(fc)) {
+		qsel = QSLT_MGNT;
+		goto out;
+	}
+	switch (mac80211_queue_index) {
+	case 0:	/* VO */
+		qsel = QSLT_VO;
+		RT_TRACE(rtlpriv, COMP_USB, DBG_DMESG,
+			 ("VO queue, set qsel = 0x%x\n", QSLT_VO));
+		break;
+	case 1:	/* VI */
+		qsel = QSLT_VI;
+		RT_TRACE(rtlpriv, COMP_USB, DBG_DMESG,
+			 ("VI queue, set qsel = 0x%x\n", QSLT_VI));
+		break;
+	case 3:	/* BK */
+		qsel = QSLT_BK;
+		RT_TRACE(rtlpriv, COMP_USB, DBG_DMESG,
+			 ("BK queue, set qsel = 0x%x\n", QSLT_BK));
+		break;
+	case 2:	/* BE */
+	default:
+		qsel = QSLT_BE;
+		RT_TRACE(rtlpriv, COMP_USB, DBG_DMESG,
+			 ("BE queue, set qsel = 0x%x\n", QSLT_BE));
+		break;
+	}
+out:
+	return qsel;
+}
+
+/* =============================================================== */
+
+/*----------------------------------------------------------------------
+ *
+ *	Rx handler
+ *
+ *---------------------------------------------------------------------- */
+bool rtl92cu_rx_query_desc(struct ieee80211_hw *hw,
+			   struct rtl_stats *stats,
+			   struct ieee80211_rx_status *rx_status,
+			   u8 *p_desc, struct sk_buff *skb)
+{
+	struct rx_fwinfo_92c *p_drvinfo;
+	struct rx_desc_92c *pdesc = (struct rx_desc_92c *)p_desc;
+	u32 phystatus = GET_RX_DESC_PHY_STATUS(pdesc);
+
+	stats->length = (u16) GET_RX_DESC_PKT_LEN(pdesc);
+	stats->rx_drvinfo_size = (u8)GET_RX_DESC_DRVINFO_SIZE(pdesc) *
+				 RX_DRV_INFO_SIZE_UNIT;
+	stats->rx_bufshift = (u8) (GET_RX_DESC_SHIFT(pdesc) & 0x03);
+	stats->icv = (u16) GET_RX_DESC_ICV(pdesc);
+	stats->crc = (u16) GET_RX_DESC_CRC32(pdesc);
+	stats->hwerror = (stats->crc | stats->icv);
+	stats->decrypted = !GET_RX_DESC_SWDEC(pdesc);
+	stats->rate = (u8) GET_RX_DESC_RX_MCS(pdesc);
+	stats->shortpreamble = (u16) GET_RX_DESC_SPLCP(pdesc);
+	stats->isampdu = (bool) (GET_RX_DESC_PAGGR(pdesc) == 1);
+	stats->isampdu = (bool) ((GET_RX_DESC_PAGGR(pdesc) == 1)
+				   && (GET_RX_DESC_FAGGR(pdesc) == 1));
+	stats->timestamp_low = GET_RX_DESC_TSFL(pdesc);
+	stats->rx_is40Mhzpacket = (bool) GET_RX_DESC_BW(pdesc);
+	rx_status->freq = hw->conf.channel->center_freq;
+	rx_status->band = hw->conf.channel->band;
+	if (GET_RX_DESC_CRC32(pdesc))
+		rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
+	if (!GET_RX_DESC_SWDEC(pdesc))
+		rx_status->flag |= RX_FLAG_DECRYPTED;
+	if (GET_RX_DESC_BW(pdesc))
+		rx_status->flag |= RX_FLAG_40MHZ;
+	if (GET_RX_DESC_RX_HT(pdesc))
+		rx_status->flag |= RX_FLAG_HT;
+	rx_status->flag |= RX_FLAG_TSFT;
+	if (stats->decrypted)
+		rx_status->flag |= RX_FLAG_DECRYPTED;
+	rx_status->rate_idx = _rtl92c_rate_mapping(hw,
+						(bool)GET_RX_DESC_RX_HT(pdesc),
+						(u8)GET_RX_DESC_RX_MCS(pdesc),
+						(bool)GET_RX_DESC_PAGGR(pdesc));
+	rx_status->mactime = GET_RX_DESC_TSFL(pdesc);
+	if (phystatus == true) {
+		p_drvinfo = (struct rx_fwinfo_92c *)(pdesc + RTL_RX_DESC_SIZE);
+		rtl92c_translate_rx_signal_stuff(hw, skb, stats, pdesc,
+						 p_drvinfo);
+	}
+	/*rx_status->qual = stats->signal; */
+	rx_status->signal = stats->rssi + 10;
+	/*rx_status->noise = -stats->noise; */
+	return true;
+}
+
+#define RTL_RX_DRV_INFO_UNIT		8
+
+static void _rtl_rx_process(struct ieee80211_hw *hw, struct sk_buff *skb)
+{
+	struct ieee80211_rx_status *rx_status =
+		 (struct ieee80211_rx_status *)IEEE80211_SKB_RXCB(skb);
+	u32 skb_len, pkt_len, drvinfo_len;
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+	u8 *rxdesc;
+	struct rtl_stats stats = {
+		.signal = 0,
+		.noise = -98,
+		.rate = 0,
+	};
+	struct rx_fwinfo_92c *p_drvinfo;
+	bool bv;
+	__le16 fc;
+	struct ieee80211_hdr *hdr;
+
+	memset(rx_status, 0, sizeof(rx_status));
+	rxdesc	= skb->data;
+	skb_len	= skb->len;
+	drvinfo_len = (GET_RX_DESC_DRVINFO_SIZE(rxdesc) * RTL_RX_DRV_INFO_UNIT);
+	pkt_len		= GET_RX_DESC_PKT_LEN(rxdesc);
+	/* TODO: Error recovery. drop this skb or something. */
+	WARN_ON(skb_len < (pkt_len + RTL_RX_DESC_SIZE + drvinfo_len));
+	stats.length = (u16) GET_RX_DESC_PKT_LEN(rxdesc);
+	stats.rx_drvinfo_size = (u8)GET_RX_DESC_DRVINFO_SIZE(rxdesc) *
+				RX_DRV_INFO_SIZE_UNIT;
+	stats.rx_bufshift = (u8) (GET_RX_DESC_SHIFT(rxdesc) & 0x03);
+	stats.icv = (u16) GET_RX_DESC_ICV(rxdesc);
+	stats.crc = (u16) GET_RX_DESC_CRC32(rxdesc);
+	stats.hwerror = (stats.crc | stats.icv);
+	stats.decrypted = !GET_RX_DESC_SWDEC(rxdesc);
+	stats.rate = (u8) GET_RX_DESC_RX_MCS(rxdesc);
+	stats.shortpreamble = (u16) GET_RX_DESC_SPLCP(rxdesc);
+	stats.isampdu = (bool) ((GET_RX_DESC_PAGGR(rxdesc) == 1)
+				   && (GET_RX_DESC_FAGGR(rxdesc) == 1));
+	stats.timestamp_low = GET_RX_DESC_TSFL(rxdesc);
+	stats.rx_is40Mhzpacket = (bool) GET_RX_DESC_BW(rxdesc);
+	/* TODO: is center_freq changed when doing scan? */
+	/* TODO: Shall we add protection or just skip those two step? */
+	rx_status->freq = hw->conf.channel->center_freq;
+	rx_status->band = hw->conf.channel->band;
+	if (GET_RX_DESC_CRC32(rxdesc))
+		rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
+	if (!GET_RX_DESC_SWDEC(rxdesc))
+		rx_status->flag |= RX_FLAG_DECRYPTED;
+	if (GET_RX_DESC_BW(rxdesc))
+		rx_status->flag |= RX_FLAG_40MHZ;
+	if (GET_RX_DESC_RX_HT(rxdesc))
+		rx_status->flag |= RX_FLAG_HT;
+	/* Data rate */
+	rx_status->rate_idx = _rtl92c_rate_mapping(hw,
+						(bool)GET_RX_DESC_RX_HT(rxdesc),
+						(u8)GET_RX_DESC_RX_MCS(rxdesc),
+						(bool)GET_RX_DESC_PAGGR(rxdesc)
+						);
+	/*  There is a phy status after this rx descriptor. */
+	if (GET_RX_DESC_PHY_STATUS(rxdesc)) {
+		p_drvinfo = (struct rx_fwinfo_92c *)(rxdesc + RTL_RX_DESC_SIZE);
+		rtl92c_translate_rx_signal_stuff(hw, skb, &stats,
+				 (struct rx_desc_92c *)rxdesc, p_drvinfo);
+	}
+	skb_pull(skb, (drvinfo_len + RTL_RX_DESC_SIZE));
+	hdr = (struct ieee80211_hdr *)(skb->data);
+	fc = hdr->frame_control;
+	bv = ieee80211_is_probe_resp(fc);
+	if (bv)
+		RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
+			 ("Got probe response frame.\n"));
+	if (ieee80211_is_beacon(fc))
+		RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
+			 ("Got beacon frame.\n"));
+	if (ieee80211_is_data(fc))
+		RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, ("Got data frame.\n"));
+	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
+		 ("Fram: fc = 0x%X addr1 = 0x%02X:0x%02X:0x%02X:0x%02X:0x%02X:"
+		 "0x%02X\n", fc, (u32)hdr->addr1[0], (u32)hdr->addr1[1],
+		 (u32)hdr->addr1[2], (u32)hdr->addr1[3], (u32)hdr->addr1[4],
+		 (u32)hdr->addr1[5]));
+	memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
+	ieee80211_rx_irqsafe(hw, skb);
+}
+
+void  rtl8192cu_rx_hdl(struct ieee80211_hw *hw, struct sk_buff * skb)
+{
+	_rtl_rx_process(hw, skb);
+}
+
+void rtl8192c_rx_segregate_hdl(
+	struct ieee80211_hw *hw,
+	struct sk_buff *skb,
+	struct sk_buff_head *skb_list)
+{
+}
+
+/*----------------------------------------------------------------------
+ *
+ *	Tx handler
+ *
+ *---------------------------------------------------------------------- */
+void rtl8192c_tx_cleanup(struct ieee80211_hw *hw, struct sk_buff  *skb)
+{
+}
+
+int rtl8192c_tx_post_hdl(struct ieee80211_hw *hw, struct urb *urb,
+			 struct sk_buff *skb)
+{
+	return 0;
+}
+
+struct sk_buff *rtl8192c_tx_aggregate_hdl(struct ieee80211_hw *hw,
+					   struct sk_buff_head *list)
+{
+	return skb_dequeue(list);
+}
+
+/*======================================== trx ===============================*/
+
+static void _rtl_fill_usb_tx_desc(u8 *txdesc)
+{
+	SET_TX_DESC_OWN(txdesc, 1);
+	SET_TX_DESC_LAST_SEG(txdesc, 1);
+	SET_TX_DESC_FIRST_SEG(txdesc, 1);
+}
+/**
+ *	For HW recovery information
+ */
+static void _rtl_tx_desc_checksum(u8 *txdesc)
+{
+	u16 *ptr = (u16 *)txdesc;
+	u16	checksum = 0;
+	u32 index;
+
+	/* Clear first */
+	SET_TX_DESC_TX_DESC_CHECKSUM(txdesc, 0);
+	for (index = 0; index < 16; index++)
+		checksum = checksum ^ (*(ptr + index));
+	SET_TX_DESC_TX_DESC_CHECKSUM(txdesc, checksum);
+}
+
+void rtl92cu_tx_fill_desc(struct ieee80211_hw *hw,
+			  struct ieee80211_hdr *hdr, u8 *pdesc_tx,
+			  struct ieee80211_tx_info *info, struct sk_buff *skb,
+			  unsigned int queue_index)
+{
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
+	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
+	bool defaultadapter = true;
+	struct ieee80211_sta *sta = ieee80211_find_sta(mac->vif, mac->bssid);
+	struct rtl_tcb_desc tcb_desc;
+	u8 *qc = ieee80211_get_qos_ctl(hdr);
+	u8 tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK;
+	u16 seq_number;
+	__le16 fc = hdr->frame_control;
+	u8 rate_flag = info->control.rates[0].flags;
+	u16 pktlen = skb->len;
+	enum rtl_desc_qsel fw_qsel = _rtl8192cu_mq_to_descq(hw, fc,
+						skb_get_queue_mapping(skb));
+	u8 *txdesc;
+
+	seq_number = (le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_SEQ) >> 4;
+	rtl_get_tcb_desc(hw, info, skb, &tcb_desc);
+	txdesc = (u8 *)skb_push(skb, RTL_TX_HEADER_SIZE);
+	memset(txdesc, 0, RTL_TX_HEADER_SIZE);
+	SET_TX_DESC_PKT_SIZE(txdesc, pktlen);
+	SET_TX_DESC_LINIP(txdesc, 0);
+	SET_TX_DESC_PKT_OFFSET(txdesc, RTL_DUMMY_OFFSET);
+	SET_TX_DESC_OFFSET(txdesc, RTL_TX_HEADER_SIZE);
+	SET_TX_DESC_TX_RATE(txdesc, tcb_desc.hw_rate);
+	if (tcb_desc.use_shortgi || tcb_desc.use_shortpreamble)
+		SET_TX_DESC_DATA_SHORTGI(txdesc, 1);
+	if (mac->tids[tid].agg.agg_state == RTL_AGG_ON &&
+		    info->flags & IEEE80211_TX_CTL_AMPDU) {
+		SET_TX_DESC_AGG_ENABLE(txdesc, 1);
+		SET_TX_DESC_MAX_AGG_NUM(txdesc, 0x14);
+	} else {
+		SET_TX_DESC_AGG_BREAK(txdesc, 1);
+	}
+	SET_TX_DESC_SEQ(txdesc, seq_number);
+	SET_TX_DESC_RTS_ENABLE(txdesc, ((tcb_desc.rts_enable &&
+			       !tcb_desc.cts_enable) ? 1 : 0));
+	SET_TX_DESC_HW_RTS_ENABLE(txdesc, ((tcb_desc.rts_enable ||
+				  tcb_desc.cts_enable) ? 1 : 0));
+	SET_TX_DESC_CTS2SELF(txdesc, ((tcb_desc.cts_enable) ? 1 : 0));
+	SET_TX_DESC_RTS_STBC(txdesc, ((tcb_desc.rts_stbc) ? 1 : 0));
+	SET_TX_DESC_RTS_RATE(txdesc, tcb_desc.rts_rate);
+	SET_TX_DESC_RTS_BW(txdesc, 0);
+	SET_TX_DESC_RTS_SC(txdesc, tcb_desc.rts_sc);
+	SET_TX_DESC_RTS_SHORT(txdesc,
+			      ((tcb_desc.rts_rate <= DESC92C_RATE54M) ?
+			       (tcb_desc.rts_use_shortpreamble ? 1 : 0)
+			       : (tcb_desc.rts_use_shortgi ? 1 : 0)));
+	if (mac->bw_40) {
+		if (tcb_desc.packet_bw) {
+			SET_TX_DESC_DATA_BW(txdesc, 1);
+			SET_TX_DESC_DATA_SC(txdesc, 3);
+		} else {
+			SET_TX_DESC_DATA_BW(txdesc, 0);
+				if (rate_flag & IEEE80211_TX_RC_DUP_DATA)
+					SET_TX_DESC_DATA_SC(txdesc,
+							  mac->cur_40_prime_sc);
+			}
+	} else {
+		SET_TX_DESC_DATA_BW(txdesc, 0);
+		SET_TX_DESC_DATA_SC(txdesc, 0);
+	}
+	if (sta) {
+		u8 ampdu_density = sta->ht_cap.ampdu_density;
+		SET_TX_DESC_AMPDU_DENSITY(txdesc, ampdu_density);
+	}
+	if (info->control.hw_key) {
+		struct ieee80211_key_conf *keyconf = info->control.hw_key;
+		switch (keyconf->cipher) {
+		case WLAN_CIPHER_SUITE_WEP40:
+		case WLAN_CIPHER_SUITE_WEP104:
+		case WLAN_CIPHER_SUITE_TKIP:
+			SET_TX_DESC_SEC_TYPE(txdesc, 0x1);
+			break;
+		case WLAN_CIPHER_SUITE_CCMP:
+			SET_TX_DESC_SEC_TYPE(txdesc, 0x3);
+			break;
+		default:
+			SET_TX_DESC_SEC_TYPE(txdesc, 0x0);
+			break;
+		}
+	}
+	SET_TX_DESC_PKT_ID(txdesc, 0);
+	SET_TX_DESC_QUEUE_SEL(txdesc, fw_qsel);
+	SET_TX_DESC_DATA_RATE_FB_LIMIT(txdesc, 0x1F);
+	SET_TX_DESC_RTS_RATE_FB_LIMIT(txdesc, 0xF);
+	SET_TX_DESC_DISABLE_FB(txdesc, 0);
+	SET_TX_DESC_USE_RATE(txdesc, tcb_desc.use_driver_rate ? 1 : 0);
+	if (ieee80211_is_data_qos(fc)) {
+		if (mac->rdg_en) {
+			RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
+				 ("Enable RDG function.\n"));
+			SET_TX_DESC_RDG_ENABLE(txdesc, 1);
+			SET_TX_DESC_HTC(txdesc, 1);
+		}
+	}
+	if (rtlpriv->dm.useramask) {
+		SET_TX_DESC_RATE_ID(txdesc, tcb_desc.ratr_index);
+		SET_TX_DESC_MACID(txdesc, tcb_desc.mac_id);
+	} else {
+		SET_TX_DESC_RATE_ID(txdesc, 0xC + tcb_desc.ratr_index);
+		SET_TX_DESC_MACID(txdesc, tcb_desc.ratr_index);
+	}
+	if ((!ieee80211_is_data_qos(fc)) && ppsc->leisure_ps &&
+	      ppsc->fwctrl_lps) {
+		SET_TX_DESC_HWSEQ_EN(txdesc, 1);
+		SET_TX_DESC_PKT_ID(txdesc, 8);
+		if (!defaultadapter)
+			SET_TX_DESC_QOS(txdesc, 1);
+	}
+	if (ieee80211_has_morefrags(fc))
+		SET_TX_DESC_MORE_FRAG(txdesc, 1);
+	if (is_multicast_ether_addr(ieee80211_get_DA(hdr)) ||
+	    is_broadcast_ether_addr(ieee80211_get_DA(hdr)))
+		SET_TX_DESC_BMC(txdesc, 1);
+	_rtl_fill_usb_tx_desc(txdesc);
+	_rtl_tx_desc_checksum(txdesc);
+	RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE, (" %s ==>\n", __func__));
+}
+
+void rtl92cu_fill_fake_txdesc(struct ieee80211_hw *hw, u8 * pDesc,
+			      u32 buffer_len, bool bIsPsPoll)
+{
+	/* Clear all status */
+	memset(pDesc, 0, RTL_TX_HEADER_SIZE);
+	SET_TX_DESC_FIRST_SEG(pDesc, 1); /* bFirstSeg; */
+	SET_TX_DESC_LAST_SEG(pDesc, 1); /* bLastSeg; */
+	SET_TX_DESC_OFFSET(pDesc, RTL_TX_HEADER_SIZE); /* Offset = 32 */
+	SET_TX_DESC_PKT_SIZE(pDesc, buffer_len); /* Buffer size + command hdr */
+	SET_TX_DESC_QUEUE_SEL(pDesc, QSLT_MGNT); /* Fixed queue of Mgnt queue */
+	/* Set NAVUSEHDR to prevent Ps-poll AId filed to be changed to error
+	 * vlaue by Hw. */
+	if (bIsPsPoll) {
+		SET_TX_DESC_NAV_USE_HDR(pDesc, 1);
+	} else {
+		SET_TX_DESC_HWSEQ_EN(pDesc, 1); /* Hw set sequence number */
+		SET_TX_DESC_PKT_ID(pDesc, 0x100); /* set bit3 to 1. */
+	}
+	SET_TX_DESC_USE_RATE(pDesc, 1); /* use data rate which is set by Sw */
+	SET_TX_DESC_OWN(pDesc, 1);
+	SET_TX_DESC_TX_RATE(pDesc, DESC92C_RATE1M);
+	_rtl_tx_desc_checksum(pDesc);
+}
+
+void rtl92cu_tx_fill_cmddesc(struct ieee80211_hw *hw,
+			     u8 *pdesc, bool firstseg,
+			     bool lastseg, struct sk_buff *skb)
+{
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+	u8 fw_queue = QSLT_BEACON;
+	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data);
+	__le16 fc = hdr->frame_control;
+
+	memset((void *)pdesc, 0, RTL_TX_HEADER_SIZE);
+	if (firstseg)
+		SET_TX_DESC_OFFSET(pdesc, RTL_TX_HEADER_SIZE);
+	SET_TX_DESC_TX_RATE(pdesc, DESC92C_RATE1M);
+	SET_TX_DESC_SEQ(pdesc, 0);
+	SET_TX_DESC_LINIP(pdesc, 0);
+	SET_TX_DESC_QUEUE_SEL(pdesc, fw_queue);
+	SET_TX_DESC_FIRST_SEG(pdesc, 1);
+	SET_TX_DESC_LAST_SEG(pdesc, 1);
+	SET_TX_DESC_RATE_ID(pdesc, 7);
+	SET_TX_DESC_MACID(pdesc, 0);
+	SET_TX_DESC_OWN(pdesc, 1);
+	SET_TX_DESC_PKT_SIZE((u8 *) pdesc, (u16) (skb->len));
+	SET_TX_DESC_FIRST_SEG(pdesc, 1);
+	SET_TX_DESC_LAST_SEG(pdesc, 1);
+	SET_TX_DESC_OFFSET(pdesc, 0x20);
+	SET_TX_DESC_USE_RATE(pdesc, 1);
+	if (!ieee80211_is_data_qos(fc)) {
+		SET_TX_DESC_HWSEQ_EN(pdesc, 1);
+		SET_TX_DESC_PKT_ID(pdesc, 8);
+	}
+	RT_PRINT_DATA(rtlpriv, COMP_CMD, DBG_LOUD, "H2C Tx Cmd Content\n",
+		      pdesc, RTL_TX_DESC_SIZE);
+}
+
+bool rtl92cu_cmd_send_packet(struct ieee80211_hw *hw, struct sk_buff *skb)
+{
+	return true;
+}