rtlwifi: rtl8192se: Merge TX and RX routines

Merge routines trx.c and trx.h for RTL8192SE.
Signed-off-by: Chaoming_Li <chaoming_li@realsil.com.cn>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/rtlwifi/rtl8192se/trx.c

+/******************************************************************************
+ *
+ * Copyright(c) 2009-2010  Realtek Corporation.
+ *
+ * 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 "../pci.h"
+#include "../base.h"
+#include "reg.h"
+#include "def.h"
+#include "phy.h"
+#include "fw.h"
+#include "trx.h"
+#include "led.h"
+
+static u8 _rtl92se_map_hwqueue_to_fwqueue(struct sk_buff *skb,	u8 skb_queue)
+{
+	__le16 fc = rtl_get_fc(skb);
+
+	if (unlikely(ieee80211_is_beacon(fc)))
+		return QSLT_BEACON;
+	if (ieee80211_is_mgmt(fc))
+		return QSLT_MGNT;
+	if (ieee80211_is_nullfunc(fc))
+		return QSLT_HIGH;
+
+	return skb->priority;
+}
+
+static int _rtl92se_rate_mapping(bool isht, u8 desc_rate, bool first_ampdu)
+{
+	int rate_idx = 0;
+
+	if (first_ampdu) {
+		if (false == isht) {
+			switch (desc_rate) {
+			case DESC92S_RATE1M:
+				rate_idx = 0;
+				break;
+			case DESC92S_RATE2M:
+				rate_idx = 1;
+				break;
+			case DESC92S_RATE5_5M:
+				rate_idx = 2;
+				break;
+			case DESC92S_RATE11M:
+				rate_idx = 3;
+				break;
+			case DESC92S_RATE6M:
+				rate_idx = 4;
+				break;
+			case DESC92S_RATE9M:
+				rate_idx = 5;
+				break;
+			case DESC92S_RATE12M:
+				rate_idx = 6;
+				break;
+			case DESC92S_RATE18M:
+				rate_idx = 7;
+				break;
+			case DESC92S_RATE24M:
+				rate_idx = 8;
+				break;
+			case DESC92S_RATE36M:
+				rate_idx = 9;
+				break;
+			case DESC92S_RATE48M:
+				rate_idx = 10;
+				break;
+			case DESC92S_RATE54M:
+				rate_idx = 11;
+				break;
+			default:
+				rate_idx = 0;
+				break;
+			}
+		} else {
+			rate_idx = 11;
+		}
+
+		return rate_idx;
+	}
+
+	switch (desc_rate) {
+	case DESC92S_RATE1M:
+		rate_idx = 0;
+		break;
+	case DESC92S_RATE2M:
+		rate_idx = 1;
+		break;
+	case DESC92S_RATE5_5M:
+		rate_idx = 2;
+		break;
+	case DESC92S_RATE11M:
+		rate_idx = 3;
+		break;
+	case DESC92S_RATE6M:
+		rate_idx = 4;
+		break;
+	case DESC92S_RATE9M:
+		rate_idx = 5;
+		break;
+	case DESC92S_RATE12M:
+		rate_idx = 6;
+		break;
+	case DESC92S_RATE18M:
+		rate_idx = 7;
+		break;
+	case DESC92S_RATE24M:
+		rate_idx = 8;
+		break;
+	case DESC92S_RATE36M:
+		rate_idx = 9;
+		break;
+	case DESC92S_RATE48M:
+		rate_idx = 10;
+		break;
+	case DESC92S_RATE54M:
+		rate_idx = 11;
+		break;
+	default:
+		rate_idx = 11;
+		break;
+	}
+	return rate_idx;
+}
+
+static u8 _rtl92s_query_rxpwrpercentage(char antpower)
+{
+	if ((antpower <= -100) || (antpower >= 20))
+		return 0;
+	else if (antpower >= 0)
+		return 100;
+	else
+		return 100 + antpower;
+}
+
+static u8 _rtl92s_evm_db_to_percentage(char value)
+{
+	char ret_val;
+	ret_val = value;
+
+	if (ret_val >= 0)
+		ret_val = 0;
+
+	if (ret_val <= -33)
+		ret_val = -33;
+
+	ret_val = 0 - ret_val;
+	ret_val *= 3;
+
+	if (ret_val == 99)
+		ret_val = 100;
+
+	return ret_val;
+}
+
+static long _rtl92se_translate_todbm(struct ieee80211_hw *hw,
+				     u8 signal_strength_index)
+{
+	long signal_power;
+
+	signal_power = (long)((signal_strength_index + 1) >> 1);
+	signal_power -= 95;
+	return signal_power;
+}
+
+static long _rtl92se_signal_scale_mapping(struct ieee80211_hw *hw,
+		long currsig)
+{
+	long retsig = 0;
+
+	/* Step 1. Scale mapping. */
+	if (currsig > 47)
+		retsig = 100;
+	else if (currsig > 14 && currsig <= 47)
+		retsig = 100 - ((47 - currsig) * 3) / 2;
+	else if (currsig > 2 && currsig <= 14)
+		retsig = 48 - ((14 - currsig) * 15) / 7;
+	else if (currsig >= 0)
+		retsig = currsig * 9 + 1;
+
+	return retsig;
+}
+
+
+static void _rtl92se_query_rxphystatus(struct ieee80211_hw *hw,
+				       struct rtl_stats *pstats, u8 *pdesc,
+				       struct rx_fwinfo *p_drvinfo,
+				       bool packet_match_bssid,
+				       bool packet_toself,
+				       bool packet_beacon)
+{
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+	struct phy_sts_cck_8192s_t *cck_buf;
+	s8 rx_pwr_all = 0, rx_pwr[4];
+	u8 rf_rx_num = 0, evm, pwdb_all;
+	u8 i, max_spatial_stream;
+	u32 rssi, total_rssi = 0;
+	bool in_powersavemode = false;
+	bool is_cck_rate;
+
+	is_cck_rate = RX_HAL_IS_CCK_RATE(pdesc);
+	pstats->packet_matchbssid = packet_match_bssid;
+	pstats->packet_toself = packet_toself;
+	pstats->is_cck = is_cck_rate;
+	pstats->packet_beacon = packet_beacon;
+	pstats->is_cck = is_cck_rate;
+	pstats->rx_mimo_signalquality[0] = -1;
+	pstats->rx_mimo_signalquality[1] = -1;
+
+	if (is_cck_rate) {
+		u8 report, cck_highpwr;
+		cck_buf = (struct phy_sts_cck_8192s_t *)p_drvinfo;
+
+		if (!in_powersavemode)
+			cck_highpwr = (u8) rtl_get_bbreg(hw,
+						RFPGA0_XA_HSSIPARAMETER2,
+						0x200);
+		else
+			cck_highpwr = false;
+
+		if (!cck_highpwr) {
+			u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
+			report = cck_buf->cck_agc_rpt & 0xc0;
+			report = report >> 6;
+			switch (report) {
+			case 0x3:
+				rx_pwr_all = -40 - (cck_agc_rpt & 0x3e);
+				break;
+			case 0x2:
+				rx_pwr_all = -20 - (cck_agc_rpt & 0x3e);
+				break;
+			case 0x1:
+				rx_pwr_all = -2 - (cck_agc_rpt & 0x3e);
+				break;
+			case 0x0:
+				rx_pwr_all = 14 - (cck_agc_rpt & 0x3e);
+				break;
+			}
+		} else {
+			u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
+			report = p_drvinfo->cfosho[0] & 0x60;
+			report = report >> 5;
+			switch (report) {
+			case 0x3:
+				rx_pwr_all = -40 - ((cck_agc_rpt & 0x1f) << 1);
+				break;
+			case 0x2:
+				rx_pwr_all = -20 - ((cck_agc_rpt & 0x1f) << 1);
+				break;
+			case 0x1:
+				rx_pwr_all = -2 - ((cck_agc_rpt & 0x1f) << 1);
+				break;
+			case 0x0:
+				rx_pwr_all = 14 - ((cck_agc_rpt & 0x1f) << 1);
+				break;
+			}
+		}
+
+		pwdb_all = _rtl92s_query_rxpwrpercentage(rx_pwr_all);
+
+		/* CCK gain is smaller than OFDM/MCS gain,  */
+		/* so we add gain diff by experiences, the val is 6 */
+		pwdb_all += 6;
+		if (pwdb_all > 100)
+			pwdb_all = 100;
+		/* modify the offset to make the same gain index with OFDM. */
+		if (pwdb_all > 34 && pwdb_all <= 42)
+			pwdb_all -= 2;
+		else if (pwdb_all > 26 && pwdb_all <= 34)
+			pwdb_all -= 6;
+		else if (pwdb_all > 14 && pwdb_all <= 26)
+			pwdb_all -= 8;
+		else if (pwdb_all > 4 && pwdb_all <= 14)
+			pwdb_all -= 4;
+
+		pstats->rx_pwdb_all = pwdb_all;
+		pstats->recvsignalpower = rx_pwr_all;
+
+		if (packet_match_bssid) {
+			u8 sq;
+			if (pstats->rx_pwdb_all > 40) {
+				sq = 100;
+			} else {
+				sq = cck_buf->sq_rpt;
+				if (sq > 64)
+					sq = 0;
+				else if (sq < 20)
+					sq = 100;
+				else
+					sq = ((64 - sq) * 100) / 44;
+			}
+
+			pstats->signalquality = sq;
+			pstats->rx_mimo_signalquality[0] = sq;
+			pstats->rx_mimo_signalquality[1] = -1;
+		}
+	} else {
+		rtlpriv->dm.rfpath_rxenable[0] =
+		    rtlpriv->dm.rfpath_rxenable[1] = true;
+		for (i = RF90_PATH_A; i < RF90_PATH_MAX; i++) {
+			if (rtlpriv->dm.rfpath_rxenable[i])
+				rf_rx_num++;
+
+			rx_pwr[i] = ((p_drvinfo->gain_trsw[i] &
+				    0x3f) * 2) - 110;
+			rssi = _rtl92s_query_rxpwrpercentage(rx_pwr[i]);
+			total_rssi += rssi;
+			rtlpriv->stats.rx_snr_db[i] =
+					 (long)(p_drvinfo->rxsnr[i] / 2);
+
+			if (packet_match_bssid)
+				pstats->rx_mimo_signalstrength[i] = (u8) rssi;
+		}
+
+		rx_pwr_all = ((p_drvinfo->pwdb_all >> 1) & 0x7f) - 110;
+		pwdb_all = _rtl92s_query_rxpwrpercentage(rx_pwr_all);
+		pstats->rx_pwdb_all = pwdb_all;
+		pstats->rxpower = rx_pwr_all;
+		pstats->recvsignalpower = rx_pwr_all;
+
+		if (GET_RX_STATUS_DESC_RX_HT(pdesc) &&
+			GET_RX_STATUS_DESC_RX_MCS(pdesc) >= DESC92S_RATEMCS8 &&
+		    GET_RX_STATUS_DESC_RX_MCS(pdesc) <= DESC92S_RATEMCS15)
+			max_spatial_stream = 2;
+		else
+			max_spatial_stream = 1;
+
+		for (i = 0; i < max_spatial_stream; i++) {
+			evm = _rtl92s_evm_db_to_percentage(p_drvinfo->rxevm[i]);
+
+			if (packet_match_bssid) {
+				if (i == 0)
+					pstats->signalquality = (u8)(evm &
+								 0xff);
+				pstats->rx_mimo_signalquality[i] =
+							 (u8) (evm & 0xff);
+			}
+		}
+	}
+
+	if (is_cck_rate)
+		pstats->signalstrength = (u8)(_rtl92se_signal_scale_mapping(hw,
+					 pwdb_all));
+	else if (rf_rx_num != 0)
+		pstats->signalstrength = (u8) (_rtl92se_signal_scale_mapping(hw,
+				total_rssi /= rf_rx_num));
+}
+
+static void _rtl92se_process_ui_rssi(struct ieee80211_hw *hw,
+				     struct rtl_stats *pstats)
+{
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+	struct rtl_phy *rtlphy = &(rtlpriv->phy);
+	u8 rfpath;
+	u32 last_rssi, tmpval;
+
+	if (pstats->packet_toself || pstats->packet_beacon) {
+		rtlpriv->stats.rssi_calculate_cnt++;
+
+		if (rtlpriv->stats.ui_rssi.total_num++ >=
+		    PHY_RSSI_SLID_WIN_MAX) {
+			rtlpriv->stats.ui_rssi.total_num =
+					 PHY_RSSI_SLID_WIN_MAX;
+			last_rssi = rtlpriv->stats.ui_rssi.elements[
+				rtlpriv->stats.ui_rssi.index];
+			rtlpriv->stats.ui_rssi.total_val -= last_rssi;
+		}
+
+		rtlpriv->stats.ui_rssi.total_val += pstats->signalstrength;
+		rtlpriv->stats.ui_rssi.elements[rtlpriv->stats.ui_rssi.index++]
+			 = pstats->signalstrength;
+
+		if (rtlpriv->stats.ui_rssi.index >= PHY_RSSI_SLID_WIN_MAX)
+			rtlpriv->stats.ui_rssi.index = 0;
+
+		tmpval = rtlpriv->stats.ui_rssi.total_val /
+			rtlpriv->stats.ui_rssi.total_num;
+		rtlpriv->stats.signal_strength = _rtl92se_translate_todbm(hw,
+								(u8) tmpval);
+		pstats->rssi = rtlpriv->stats.signal_strength;
+	}
+
+	if (!pstats->is_cck && pstats->packet_toself) {
+		for (rfpath = RF90_PATH_A; rfpath < rtlphy->num_total_rfpath;
+		     rfpath++) {
+			if (rtlpriv->stats.rx_rssi_percentage[rfpath] == 0) {
+				rtlpriv->stats.rx_rssi_percentage[rfpath] =
+				    pstats->rx_mimo_signalstrength[rfpath];
+
+			}
+
+			if (pstats->rx_mimo_signalstrength[rfpath] >
+			    rtlpriv->stats.rx_rssi_percentage[rfpath]) {
+				rtlpriv->stats.rx_rssi_percentage[rfpath] =
+				    ((rtlpriv->stats.rx_rssi_percentage[rfpath]
+				    * (RX_SMOOTH_FACTOR - 1)) +
+				    (pstats->rx_mimo_signalstrength[rfpath])) /
+				    (RX_SMOOTH_FACTOR);
+
+				rtlpriv->stats.rx_rssi_percentage[rfpath] =
+				    rtlpriv->stats.rx_rssi_percentage[rfpath]
+				    + 1;
+			} else {
+				rtlpriv->stats.rx_rssi_percentage[rfpath] =
+				    ((rtlpriv->stats.rx_rssi_percentage[rfpath]
+				    * (RX_SMOOTH_FACTOR - 1)) +
+				    (pstats->rx_mimo_signalstrength[rfpath])) /
+				    (RX_SMOOTH_FACTOR);
+			}
+
+		}
+	}
+}
+
+static void _rtl92se_update_rxsignalstatistics(struct ieee80211_hw *hw,
+					       struct rtl_stats *pstats)
+{
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+	int weighting = 0;
+
+	if (rtlpriv->stats.recv_signal_power == 0)
+		rtlpriv->stats.recv_signal_power = pstats->recvsignalpower;
+
+	if (pstats->recvsignalpower > rtlpriv->stats.recv_signal_power)
+		weighting = 5;
+	else if (pstats->recvsignalpower < rtlpriv->stats.recv_signal_power)
+		weighting = (-5);
+
+	rtlpriv->stats.recv_signal_power = (rtlpriv->stats.recv_signal_power * 5
+					   + pstats->recvsignalpower +
+					   weighting) / 6;
+}
+
+static void _rtl92se_process_pwdb(struct ieee80211_hw *hw,
+				  struct rtl_stats *pstats)
+{
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
+	long undec_sm_pwdb = 0;
+
+	if (mac->opmode == NL80211_IFTYPE_ADHOC) {
+		return;
+	} else {
+		undec_sm_pwdb =
+		    rtlpriv->dm.undecorated_smoothed_pwdb;
+	}
+
+	if (pstats->packet_toself || pstats->packet_beacon) {
+		if (undec_sm_pwdb < 0)
+			undec_sm_pwdb = pstats->rx_pwdb_all;
+
+		if (pstats->rx_pwdb_all > (u32) undec_sm_pwdb) {
+			undec_sm_pwdb =
+			    (((undec_sm_pwdb) *
+			    (RX_SMOOTH_FACTOR - 1)) +
+			    (pstats->rx_pwdb_all)) / (RX_SMOOTH_FACTOR);
+
+			undec_sm_pwdb = undec_sm_pwdb + 1;
+		} else {
+			undec_sm_pwdb = (((undec_sm_pwdb) *
+			      (RX_SMOOTH_FACTOR - 1)) + (pstats->rx_pwdb_all)) /
+			      (RX_SMOOTH_FACTOR);
+		}
+
+		rtlpriv->dm.undecorated_smoothed_pwdb = undec_sm_pwdb;
+		_rtl92se_update_rxsignalstatistics(hw, pstats);
+	}
+}
+
+static void rtl_92s_process_streams(struct ieee80211_hw *hw,
+				    struct rtl_stats *pstats)
+{
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+	u32 stream;
+
+	for (stream = 0; stream < 2; stream++) {
+		if (pstats->rx_mimo_signalquality[stream] != -1) {
+			if (rtlpriv->stats.rx_evm_percentage[stream] == 0) {
+				rtlpriv->stats.rx_evm_percentage[stream] =
+				    pstats->rx_mimo_signalquality[stream];
+			}
+
+			rtlpriv->stats.rx_evm_percentage[stream] =
+			    ((rtlpriv->stats.rx_evm_percentage[stream] *
+					(RX_SMOOTH_FACTOR - 1)) +
+			     (pstats->rx_mimo_signalquality[stream] *
+					1)) / (RX_SMOOTH_FACTOR);
+		}
+	}
+}
+
+static void _rtl92se_process_ui_link_quality(struct ieee80211_hw *hw,
+					     struct rtl_stats *pstats)
+{
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+	u32 last_evm = 0, tmpval;
+
+	if (pstats->signalquality != 0) {
+		if (pstats->packet_toself || pstats->packet_beacon) {
+
+			if (rtlpriv->stats.ui_link_quality.total_num++ >=
+			    PHY_LINKQUALITY_SLID_WIN_MAX) {
+				rtlpriv->stats.ui_link_quality.total_num =
+				    PHY_LINKQUALITY_SLID_WIN_MAX;
+				last_evm =
+				    rtlpriv->stats.ui_link_quality.elements[
+				    rtlpriv->stats.ui_link_quality.index];
+				rtlpriv->stats.ui_link_quality.total_val -=
+				    last_evm;
+			}
+
+			rtlpriv->stats.ui_link_quality.total_val +=
+			    pstats->signalquality;
+			rtlpriv->stats.ui_link_quality.elements[
+				rtlpriv->stats.ui_link_quality.index++] =
+			    pstats->signalquality;
+
+			if (rtlpriv->stats.ui_link_quality.index >=
+			    PHY_LINKQUALITY_SLID_WIN_MAX)
+				rtlpriv->stats.ui_link_quality.index = 0;
+
+			tmpval = rtlpriv->stats.ui_link_quality.total_val /
+			    rtlpriv->stats.ui_link_quality.total_num;
+			rtlpriv->stats.signal_quality = tmpval;
+
+			rtlpriv->stats.last_sigstrength_inpercent = tmpval;
+
+			rtl_92s_process_streams(hw, pstats);
+
+		}
+	}
+}
+
+static void _rtl92se_process_phyinfo(struct ieee80211_hw *hw,
+				     u8 *buffer,
+				     struct rtl_stats *pcurrent_stats)
+{
+
+	if (!pcurrent_stats->packet_matchbssid &&
+	    !pcurrent_stats->packet_beacon)
+		return;
+
+	_rtl92se_process_ui_rssi(hw, pcurrent_stats);
+	_rtl92se_process_pwdb(hw, pcurrent_stats);
+	_rtl92se_process_ui_link_quality(hw, pcurrent_stats);
+}
+
+static void _rtl92se_translate_rx_signal_stuff(struct ieee80211_hw *hw,
+		struct sk_buff *skb, struct rtl_stats *pstats,
+		u8 *pdesc, struct rx_fwinfo *p_drvinfo)
+{
+	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
+	struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
+
+	struct ieee80211_hdr *hdr;
+	u8 *tmp_buf;
+	u8 *praddr;
+	u8 *psaddr;
+	__le16 fc;
+	u16 type, cfc;
+	bool packet_matchbssid, packet_toself, packet_beacon;
+
+	tmp_buf = skb->data + pstats->rx_drvinfo_size + pstats->rx_bufshift;
+
+	hdr = (struct ieee80211_hdr *)tmp_buf;
+	fc = hdr->frame_control;
+	cfc = le16_to_cpu(fc);
+	type = WLAN_FC_GET_TYPE(fc);
+	praddr = hdr->addr1;
+	psaddr = hdr->addr2;
+
+	packet_matchbssid = ((IEEE80211_FTYPE_CTL != type) &&
+	     (!compare_ether_addr(mac->bssid, (cfc & IEEE80211_FCTL_TODS) ?
+			hdr->addr1 : (cfc & IEEE80211_FCTL_FROMDS) ?
+			hdr->addr2 : hdr->addr3)) && (!pstats->hwerror) &&
+			(!pstats->crc) && (!pstats->icv));
+
+	packet_toself = packet_matchbssid &&
+	    (!compare_ether_addr(praddr, rtlefuse->dev_addr));
+
+	if (ieee80211_is_beacon(fc))
+		packet_beacon = true;
+
+	_rtl92se_query_rxphystatus(hw, pstats, pdesc, p_drvinfo,
+			packet_matchbssid, packet_toself, packet_beacon);
+	_rtl92se_process_phyinfo(hw, tmp_buf, pstats);
+}
+
+bool rtl92se_rx_query_desc(struct ieee80211_hw *hw, struct rtl_stats *stats,
+			   struct ieee80211_rx_status *rx_status, u8 *pdesc,
+			   struct sk_buff *skb)
+{
+	struct rx_fwinfo *p_drvinfo;
+	u32 phystatus = (u32)GET_RX_STATUS_DESC_PHY_STATUS(pdesc);
+
+	stats->length = (u16)GET_RX_STATUS_DESC_PKT_LEN(pdesc);
+	stats->rx_drvinfo_size = (u8)GET_RX_STATUS_DESC_DRVINFO_SIZE(pdesc) * 8;
+	stats->rx_bufshift = (u8)(GET_RX_STATUS_DESC_SHIFT(pdesc) & 0x03);
+	stats->icv = (u16)GET_RX_STATUS_DESC_ICV(pdesc);
+	stats->crc = (u16)GET_RX_STATUS_DESC_CRC32(pdesc);
+	stats->hwerror = (u16)(stats->crc | stats->icv);
+	stats->decrypted = !GET_RX_STATUS_DESC_SWDEC(pdesc);
+
+	stats->rate = (u8)GET_RX_STATUS_DESC_RX_MCS(pdesc);
+	stats->shortpreamble = (u16)GET_RX_STATUS_DESC_SPLCP(pdesc);
+	stats->isampdu = (bool)(GET_RX_STATUS_DESC_PAGGR(pdesc) == 1);
+	stats->timestamp_low = GET_RX_STATUS_DESC_TSFL(pdesc);
+	stats->rx_is40Mhzpacket = (bool)GET_RX_STATUS_DESC_BW(pdesc);
+
+	if (stats->hwerror)
+		return false;
+
+	rx_status->freq = hw->conf.channel->center_freq;
+	rx_status->band = hw->conf.channel->band;
+
+	if (GET_RX_STATUS_DESC_CRC32(pdesc))
+		rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
+
+	if (!GET_RX_STATUS_DESC_SWDEC(pdesc))
+		rx_status->flag |= RX_FLAG_DECRYPTED;
+
+	if (GET_RX_STATUS_DESC_BW(pdesc))
+		rx_status->flag |= RX_FLAG_40MHZ;
+
+	if (GET_RX_STATUS_DESC_RX_HT(pdesc))
+		rx_status->flag |= RX_FLAG_HT;
+
+	rx_status->flag |= RX_FLAG_MACTIME_MPDU;
+
+	if (stats->decrypted)
+		rx_status->flag |= RX_FLAG_DECRYPTED;
+
+	rx_status->rate_idx = _rtl92se_rate_mapping((bool)
+			GET_RX_STATUS_DESC_RX_HT(pdesc),
+			(u8)GET_RX_STATUS_DESC_RX_MCS(pdesc),
+			(bool)GET_RX_STATUS_DESC_PAGGR(pdesc));
+
+
+	rx_status->mactime = GET_RX_STATUS_DESC_TSFL(pdesc);
+	if (phystatus == true) {
+		p_drvinfo = (struct rx_fwinfo *)(skb->data +
+						 stats->rx_bufshift);
+		_rtl92se_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;
+}
+
+void rtl92se_tx_fill_desc(struct ieee80211_hw *hw,
+		struct ieee80211_hdr *hdr, u8 *pdesc_tx,
+		struct ieee80211_tx_info *info, struct sk_buff *skb,
+		u8 hw_queue, struct rtl_tcb_desc *ptcb_desc)
+{
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
+	struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
+	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
+	struct ieee80211_sta *sta = info->control.sta;
+	u8 *pdesc = (u8 *) pdesc_tx;
+	u16 seq_number;
+	__le16 fc = hdr->frame_control;
+	u8 reserved_macid = 0;
+	u8 fw_qsel = _rtl92se_map_hwqueue_to_fwqueue(skb, hw_queue);
+	bool firstseg = (!(hdr->seq_ctrl & cpu_to_le16(IEEE80211_SCTL_FRAG)));
+	bool lastseg = (!(hdr->frame_control &
+			cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)));
+	dma_addr_t mapping = pci_map_single(rtlpci->pdev, skb->data, skb->len,
+		    PCI_DMA_TODEVICE);
+	u8 bw_40 = 0;
+
+	if (mac->opmode == NL80211_IFTYPE_STATION) {
+		bw_40 = mac->bw_40;
+	} else if (mac->opmode == NL80211_IFTYPE_AP ||
+		mac->opmode == NL80211_IFTYPE_ADHOC) {
+		if (sta)
+			bw_40 = sta->ht_cap.cap &
+				    IEEE80211_HT_CAP_SUP_WIDTH_20_40;
+	}
+
+	seq_number = (le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_SEQ) >> 4;
+
+	rtl_get_tcb_desc(hw, info, sta, skb, ptcb_desc);
+
+	CLEAR_PCI_TX_DESC_CONTENT(pdesc, TX_DESC_SIZE_RTL8192S);
+
+	if (firstseg) {
+		if (rtlpriv->dm.useramask) {
+			/* set txdesc macId */
+			if (ptcb_desc->mac_id < 32) {
+				SET_TX_DESC_MACID(pdesc, ptcb_desc->mac_id);
+				reserved_macid |= ptcb_desc->mac_id;
+			}
+		}
+		SET_TX_DESC_RSVD_MACID(pdesc, reserved_macid);
+
+		SET_TX_DESC_TXHT(pdesc, ((ptcb_desc->hw_rate >=
+				 DESC92S_RATEMCS0) ? 1 : 0));
+
+		if (rtlhal->version == VERSION_8192S_ACUT) {
+			if (ptcb_desc->hw_rate == DESC92S_RATE1M ||
+				ptcb_desc->hw_rate  == DESC92S_RATE2M ||
+				ptcb_desc->hw_rate == DESC92S_RATE5_5M ||
+				ptcb_desc->hw_rate == DESC92S_RATE11M) {
+				ptcb_desc->hw_rate = DESC92S_RATE12M;
+			}
+		}
+
+		SET_TX_DESC_TX_RATE(pdesc, ptcb_desc->hw_rate);
+
+		if (ptcb_desc->use_shortgi || ptcb_desc->use_shortpreamble)
+			SET_TX_DESC_TX_SHORT(pdesc, 0);
+
+		/* Aggregation related */
+		if (info->flags & IEEE80211_TX_CTL_AMPDU)
+			SET_TX_DESC_AGG_ENABLE(pdesc, 1);
+
+		/* For AMPDU, we must insert SSN into TX_DESC */
+		SET_TX_DESC_SEQ(pdesc, seq_number);
+
+		/* Protection mode related */
+		/* For 92S, if RTS/CTS are set, HW will execute RTS. */
+		/* We choose only one protection mode to execute */
+		SET_TX_DESC_RTS_ENABLE(pdesc, ((ptcb_desc->rts_enable &&
+				!ptcb_desc->cts_enable) ? 1 : 0));
+		SET_TX_DESC_CTS_ENABLE(pdesc, ((ptcb_desc->cts_enable) ?
+				       1 : 0));
+		SET_TX_DESC_RTS_STBC(pdesc, ((ptcb_desc->rts_stbc) ? 1 : 0));
+
+		SET_TX_DESC_RTS_RATE(pdesc, ptcb_desc->rts_rate);
+		SET_TX_DESC_RTS_BANDWIDTH(pdesc, 0);
+		SET_TX_DESC_RTS_SUB_CARRIER(pdesc, ptcb_desc->rts_sc);
+		SET_TX_DESC_RTS_SHORT(pdesc, ((ptcb_desc->rts_rate <=
+		       DESC92S_RATE54M) ?
+		       (ptcb_desc->rts_use_shortpreamble ? 1 : 0)
+		       : (ptcb_desc->rts_use_shortgi ? 1 : 0)));
+
+
+		/* Set Bandwidth and sub-channel settings. */
+		if (bw_40) {
+			if (ptcb_desc->packet_bw) {
+				SET_TX_DESC_TX_BANDWIDTH(pdesc, 1);
+				/* use duplicated mode */
+				SET_TX_DESC_TX_SUB_CARRIER(pdesc, 0);
+			} else {
+				SET_TX_DESC_TX_BANDWIDTH(pdesc, 0);
+				SET_TX_DESC_TX_SUB_CARRIER(pdesc,
+						   mac->cur_40_prime_sc);
+			}
+		} else {
+			SET_TX_DESC_TX_BANDWIDTH(pdesc, 0);
+			SET_TX_DESC_TX_SUB_CARRIER(pdesc, 0);
+		}
+
+		/* 3 Fill necessary field in First Descriptor */
+		/*DWORD 0*/
+		SET_TX_DESC_LINIP(pdesc, 0);
+		SET_TX_DESC_OFFSET(pdesc, 32);
+		SET_TX_DESC_PKT_SIZE(pdesc, (u16) skb->len);
+
+		/*DWORD 1*/
+		SET_TX_DESC_RA_BRSR_ID(pdesc, ptcb_desc->ratr_index);
+
+		/* Fill security related */
+		if (info->control.hw_key) {
+			struct ieee80211_key_conf *keyconf;
+
+			keyconf = info->control.hw_key;
+			switch (keyconf->cipher) {
+			case WLAN_CIPHER_SUITE_WEP40:
+			case WLAN_CIPHER_SUITE_WEP104:
+				SET_TX_DESC_SEC_TYPE(pdesc, 0x1);
+				break;
+			case WLAN_CIPHER_SUITE_TKIP:
+				SET_TX_DESC_SEC_TYPE(pdesc, 0x2);
+				break;
+			case WLAN_CIPHER_SUITE_CCMP:
+				SET_TX_DESC_SEC_TYPE(pdesc, 0x3);
+				break;
+			default:
+				SET_TX_DESC_SEC_TYPE(pdesc, 0x0);
+				break;
+
+			}
+		}
+
+		/* Set Packet ID */
+		SET_TX_DESC_PACKET_ID(pdesc, 0);
+
+		/* We will assign magement queue to BK. */
+		SET_TX_DESC_QUEUE_SEL(pdesc, fw_qsel);
+
+		/* Alwasy enable all rate fallback range */
+		SET_TX_DESC_DATA_RATE_FB_LIMIT(pdesc, 0x1F);
+
+		/* Fix: I don't kown why hw use 6.5M to tx when set it */
+		SET_TX_DESC_USER_RATE(pdesc,
+				      ptcb_desc->use_driver_rate ? 1 : 0);
+
+		/* Set NON_QOS bit. */
+		if (!ieee80211_is_data_qos(fc))
+			SET_TX_DESC_NON_QOS(pdesc, 1);
+
+	}
+
+	/* Fill fields that are required to be initialized
+	 * in all of the descriptors */
+	/*DWORD 0 */
+	SET_TX_DESC_FIRST_SEG(pdesc, (firstseg ? 1 : 0));
+	SET_TX_DESC_LAST_SEG(pdesc, (lastseg ? 1 : 0));
+
+	/* DWORD 7 */
+	SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16) skb->len);
+
+	/* DOWRD 8 */
+	SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, cpu_to_le32(mapping));
+
+	RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE, ("\n"));
+}
+
+void rtl92se_tx_fill_cmddesc(struct ieee80211_hw *hw, u8 *pdesc,
+	bool firstseg, bool lastseg, struct sk_buff *skb)
+{
+	struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
+	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
+	struct rtl_tcb_desc *tcb_desc = (struct rtl_tcb_desc *)(skb->cb);
+
+	dma_addr_t mapping = pci_map_single(rtlpci->pdev, skb->data, skb->len,
+			PCI_DMA_TODEVICE);
+
+    /* Clear all status	*/
+	CLEAR_PCI_TX_DESC_CONTENT(pdesc, TX_CMDDESC_SIZE_RTL8192S);
+
+	/* This bit indicate this packet is used for FW download. */
+	if (tcb_desc->cmd_or_init == DESC_PACKET_TYPE_INIT) {
+		/* For firmware downlaod we only need to set LINIP */
+		SET_TX_DESC_LINIP(pdesc, tcb_desc->last_inipkt);
+
+		/* 92SE must set as 1 for firmware download HW DMA error */
+		SET_TX_DESC_FIRST_SEG(pdesc, 1);
+		SET_TX_DESC_LAST_SEG(pdesc, 1);
+
+		/* 92SE need not to set TX packet size when firmware download */
+		SET_TX_DESC_PKT_SIZE(pdesc, (u16)(skb->len));
+		SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16)(skb->len));
+		SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, cpu_to_le32(mapping));
+
+		SET_TX_DESC_OWN(pdesc, 1);
+	} else { /* H2C Command Desc format (Host TXCMD) */
+		/* 92SE must set as 1 for firmware download HW DMA error */
+		SET_TX_DESC_FIRST_SEG(pdesc, 1);
+		SET_TX_DESC_LAST_SEG(pdesc, 1);
+
+		SET_TX_DESC_OFFSET(pdesc, 0x20);
+
+		/* Buffer size + command header */
+		SET_TX_DESC_PKT_SIZE(pdesc, (u16)(skb->len));
+		/* Fixed queue of H2C command */
+		SET_TX_DESC_QUEUE_SEL(pdesc, 0x13);
+
+		SET_BITS_TO_LE_4BYTE(skb->data, 24, 7, rtlhal->h2c_txcmd_seq);
+
+		SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16)(skb->len));
+		SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, cpu_to_le32(mapping));
+
+		SET_TX_DESC_OWN(pdesc, 1);
+
+	}
+}
+
+void rtl92se_set_desc(u8 *pdesc, bool istx, u8 desc_name, u8 *val)
+{
+	if (istx == true) {
+		switch (desc_name) {
+		case HW_DESC_OWN:
+			SET_TX_DESC_OWN(pdesc, 1);
+			break;
+		case HW_DESC_TX_NEXTDESC_ADDR:
+			SET_TX_DESC_NEXT_DESC_ADDRESS(pdesc, *(u32 *) val);
+			break;
+		default:
+			RT_ASSERT(false, ("ERR txdesc :%d not process\n",
+				  desc_name));
+			break;
+		}
+	} else {
+		switch (desc_name) {
+		case HW_DESC_RXOWN:
+			SET_RX_STATUS_DESC_OWN(pdesc, 1);
+			break;
+		case HW_DESC_RXBUFF_ADDR:
+			SET_RX_STATUS__DESC_BUFF_ADDR(pdesc, *(u32 *) val);
+			break;
+		case HW_DESC_RXPKT_LEN:
+			SET_RX_STATUS_DESC_PKT_LEN(pdesc, *(u32 *) val);
+			break;
+		case HW_DESC_RXERO:
+			SET_RX_STATUS_DESC_EOR(pdesc, 1);
+			break;
+		default:
+			RT_ASSERT(false, ("ERR rxdesc :%d not process\n",
+				  desc_name));
+			break;
+		}
+	}
+}
+
+u32 rtl92se_get_desc(u8 *desc, bool istx, u8 desc_name)
+{
+	u32 ret = 0;
+
+	if (istx == true) {
+		switch (desc_name) {
+		case HW_DESC_OWN:
+			ret = GET_TX_DESC_OWN(desc);
+			break;
+		case HW_DESC_TXBUFF_ADDR:
+			ret = GET_TX_DESC_TX_BUFFER_ADDRESS(desc);
+			break;
+		default:
+			RT_ASSERT(false, ("ERR txdesc :%d not process\n",
+				  desc_name));
+			break;
+		}
+	} else {
+		switch (desc_name) {
+		case HW_DESC_OWN:
+			ret = GET_RX_STATUS_DESC_OWN(desc);
+			break;
+		case HW_DESC_RXPKT_LEN:
+			ret = GET_RX_STATUS_DESC_PKT_LEN(desc);
+			break;
+		default:
+			RT_ASSERT(false, ("ERR rxdesc :%d not process\n",
+				  desc_name));
+			break;
+		}
+	}
+	return ret;
+}
+
+void rtl92se_tx_polling(struct ieee80211_hw *hw, u8 hw_queue)
+{
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+	rtl_write_word(rtlpriv, TP_POLL, BIT(0) << (hw_queue));
+}

drivers/net/wireless/rtlwifi/rtl8192se/trx.h

+/******************************************************************************
+ *
+ * Copyright(c) 2009-2010  Realtek Corporation.
+ *
+ * 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>
+ *
+ *****************************************************************************/
+#ifndef __REALTEK_PCI92SE_TRX_H__
+#define __REALTEK_PCI92SE_TRX_H__
+
+void rtl92se_tx_fill_desc(struct ieee80211_hw *hw, struct ieee80211_hdr *hdr,
+			  u8 *pdesc, struct ieee80211_tx_info *info,
+			  struct sk_buff *skb, u8 hw_queue,
+			  struct rtl_tcb_desc *ptcb_desc);
+void rtl92se_tx_fill_cmddesc(struct ieee80211_hw *hw, u8 *pdesc, bool firstseg,
+			     bool lastseg, struct sk_buff *skb);
+bool rtl92se_rx_query_desc(struct ieee80211_hw *hw, struct rtl_stats *stats,
+			   struct ieee80211_rx_status *rx_status, u8 *pdesc,
+			   struct sk_buff *skb);
+void rtl92se_set_desc(u8 *pdesc, bool istx, u8 desc_name, u8 *val);
+u32 rtl92se_get_desc(u8 *pdesc, bool istx, u8 desc_name);
+void rtl92se_tx_polling(struct ieee80211_hw *hw, u8 hw_queue);
+
+#endif