516 lines
15 KiB
C
516 lines
15 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/* Copyright(c) 2009-2012 Realtek Corporation.*/
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#include "../wifi.h"
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#include "../base.h"
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#include "../stats.h"
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#include "def.h"
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#include "trx_common.h"
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static long _rtl92d_translate_todbm(struct ieee80211_hw *hw,
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u8 signal_strength_index)
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{
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long signal_power;
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signal_power = (long)((signal_strength_index + 1) >> 1);
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signal_power -= 95;
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return signal_power;
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}
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static void _rtl92d_query_rxphystatus(struct ieee80211_hw *hw,
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struct rtl_stats *pstats,
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__le32 *pdesc,
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struct rx_fwinfo_92d *p_drvinfo,
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bool packet_match_bssid,
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bool packet_toself,
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bool packet_beacon)
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{
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struct rtl_priv *rtlpriv = rtl_priv(hw);
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struct rtl_phy *rtlphy = &rtlpriv->phy;
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struct rtl_ps_ctl *ppsc = rtl_psc(rtlpriv);
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struct phy_sts_cck_8192d *cck_buf;
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s8 rx_pwr_all, rx_pwr[4];
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u8 rf_rx_num = 0, evm, pwdb_all;
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u8 i, max_spatial_stream;
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u32 rssi, total_rssi = 0;
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bool is_cck_rate;
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u8 rxmcs;
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rxmcs = get_rx_desc_rxmcs(pdesc);
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is_cck_rate = rxmcs <= DESC_RATE11M;
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pstats->packet_matchbssid = packet_match_bssid;
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pstats->packet_toself = packet_toself;
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pstats->packet_beacon = packet_beacon;
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pstats->is_cck = is_cck_rate;
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pstats->rx_mimo_sig_qual[0] = -1;
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pstats->rx_mimo_sig_qual[1] = -1;
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if (is_cck_rate) {
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u8 report, cck_highpwr;
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cck_buf = (struct phy_sts_cck_8192d *)p_drvinfo;
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if (ppsc->rfpwr_state == ERFON)
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cck_highpwr = rtlphy->cck_high_power;
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else
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cck_highpwr = false;
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if (!cck_highpwr) {
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u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
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report = cck_buf->cck_agc_rpt & 0xc0;
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report = report >> 6;
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switch (report) {
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case 0x3:
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rx_pwr_all = -46 - (cck_agc_rpt & 0x3e);
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break;
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case 0x2:
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rx_pwr_all = -26 - (cck_agc_rpt & 0x3e);
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break;
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case 0x1:
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rx_pwr_all = -12 - (cck_agc_rpt & 0x3e);
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break;
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case 0x0:
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rx_pwr_all = 16 - (cck_agc_rpt & 0x3e);
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break;
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}
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} else {
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u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
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report = p_drvinfo->cfosho[0] & 0x60;
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report = report >> 5;
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switch (report) {
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case 0x3:
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rx_pwr_all = -46 - ((cck_agc_rpt & 0x1f) << 1);
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break;
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case 0x2:
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rx_pwr_all = -26 - ((cck_agc_rpt & 0x1f) << 1);
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break;
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case 0x1:
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rx_pwr_all = -12 - ((cck_agc_rpt & 0x1f) << 1);
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break;
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case 0x0:
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rx_pwr_all = 16 - ((cck_agc_rpt & 0x1f) << 1);
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break;
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}
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}
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pwdb_all = rtl_query_rxpwrpercentage(rx_pwr_all);
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/* CCK gain is smaller than OFDM/MCS gain, */
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/* so we add gain diff by experiences, the val is 6 */
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pwdb_all += 6;
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if (pwdb_all > 100)
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pwdb_all = 100;
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/* modify the offset to make the same gain index with OFDM. */
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if (pwdb_all > 34 && pwdb_all <= 42)
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pwdb_all -= 2;
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else if (pwdb_all > 26 && pwdb_all <= 34)
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pwdb_all -= 6;
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else if (pwdb_all > 14 && pwdb_all <= 26)
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pwdb_all -= 8;
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else if (pwdb_all > 4 && pwdb_all <= 14)
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pwdb_all -= 4;
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pstats->rx_pwdb_all = pwdb_all;
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pstats->recvsignalpower = rx_pwr_all;
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if (packet_match_bssid) {
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u8 sq;
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if (pstats->rx_pwdb_all > 40) {
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sq = 100;
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} else {
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sq = cck_buf->sq_rpt;
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if (sq > 64)
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sq = 0;
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else if (sq < 20)
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sq = 100;
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else
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sq = ((64 - sq) * 100) / 44;
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}
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pstats->signalquality = sq;
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pstats->rx_mimo_sig_qual[0] = sq;
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pstats->rx_mimo_sig_qual[1] = -1;
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}
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} else {
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rtlpriv->dm.rfpath_rxenable[0] = true;
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rtlpriv->dm.rfpath_rxenable[1] = true;
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for (i = RF90_PATH_A; i < RF6052_MAX_PATH; i++) {
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if (rtlpriv->dm.rfpath_rxenable[i])
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rf_rx_num++;
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rx_pwr[i] = ((p_drvinfo->gain_trsw[i] & 0x3f) * 2)
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- 110;
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rssi = rtl_query_rxpwrpercentage(rx_pwr[i]);
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total_rssi += rssi;
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rtlpriv->stats.rx_snr_db[i] =
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(long)(p_drvinfo->rxsnr[i] / 2);
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if (packet_match_bssid)
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pstats->rx_mimo_signalstrength[i] = (u8)rssi;
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}
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rx_pwr_all = ((p_drvinfo->pwdb_all >> 1) & 0x7f) - 106;
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pwdb_all = rtl_query_rxpwrpercentage(rx_pwr_all);
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pstats->rx_pwdb_all = pwdb_all;
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pstats->rxpower = rx_pwr_all;
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pstats->recvsignalpower = rx_pwr_all;
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if (get_rx_desc_rxht(pdesc) && rxmcs >= DESC_RATEMCS8 &&
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rxmcs <= DESC_RATEMCS15)
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max_spatial_stream = 2;
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else
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max_spatial_stream = 1;
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for (i = 0; i < max_spatial_stream; i++) {
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evm = rtl_evm_db_to_percentage(p_drvinfo->rxevm[i]);
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if (packet_match_bssid) {
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if (i == 0)
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pstats->signalquality =
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(u8)(evm & 0xff);
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pstats->rx_mimo_sig_qual[i] =
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(u8)(evm & 0xff);
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}
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}
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}
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if (is_cck_rate)
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pstats->signalstrength = (u8)(rtl_signal_scale_mapping(hw,
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pwdb_all));
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else if (rf_rx_num != 0)
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pstats->signalstrength = (u8)(rtl_signal_scale_mapping(hw,
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total_rssi /= rf_rx_num));
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}
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static void rtl92d_loop_over_paths(struct ieee80211_hw *hw,
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struct rtl_stats *pstats)
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{
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struct rtl_priv *rtlpriv = rtl_priv(hw);
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struct rtl_phy *rtlphy = &rtlpriv->phy;
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u8 rfpath;
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for (rfpath = RF90_PATH_A; rfpath < rtlphy->num_total_rfpath;
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rfpath++) {
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if (rtlpriv->stats.rx_rssi_percentage[rfpath] == 0) {
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rtlpriv->stats.rx_rssi_percentage[rfpath] =
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pstats->rx_mimo_signalstrength[rfpath];
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}
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if (pstats->rx_mimo_signalstrength[rfpath] >
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rtlpriv->stats.rx_rssi_percentage[rfpath]) {
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rtlpriv->stats.rx_rssi_percentage[rfpath] =
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((rtlpriv->stats.rx_rssi_percentage[rfpath] *
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(RX_SMOOTH_FACTOR - 1)) +
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(pstats->rx_mimo_signalstrength[rfpath])) /
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(RX_SMOOTH_FACTOR);
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rtlpriv->stats.rx_rssi_percentage[rfpath] =
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rtlpriv->stats.rx_rssi_percentage[rfpath] + 1;
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} else {
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rtlpriv->stats.rx_rssi_percentage[rfpath] =
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((rtlpriv->stats.rx_rssi_percentage[rfpath] *
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(RX_SMOOTH_FACTOR - 1)) +
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(pstats->rx_mimo_signalstrength[rfpath])) /
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(RX_SMOOTH_FACTOR);
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}
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}
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}
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static void _rtl92d_process_ui_rssi(struct ieee80211_hw *hw,
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struct rtl_stats *pstats)
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{
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struct rtl_priv *rtlpriv = rtl_priv(hw);
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struct rt_smooth_data *ui_rssi;
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u32 last_rssi, tmpval;
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if (!pstats->packet_toself && !pstats->packet_beacon)
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return;
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ui_rssi = &rtlpriv->stats.ui_rssi;
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rtlpriv->stats.rssi_calculate_cnt++;
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if (ui_rssi->total_num++ >= PHY_RSSI_SLID_WIN_MAX) {
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ui_rssi->total_num = PHY_RSSI_SLID_WIN_MAX;
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last_rssi = ui_rssi->elements[ui_rssi->index];
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ui_rssi->total_val -= last_rssi;
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}
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ui_rssi->total_val += pstats->signalstrength;
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ui_rssi->elements[ui_rssi->index++] = pstats->signalstrength;
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if (ui_rssi->index >= PHY_RSSI_SLID_WIN_MAX)
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ui_rssi->index = 0;
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tmpval = ui_rssi->total_val / ui_rssi->total_num;
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rtlpriv->stats.signal_strength = _rtl92d_translate_todbm(hw, (u8)tmpval);
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pstats->rssi = rtlpriv->stats.signal_strength;
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if (!pstats->is_cck && pstats->packet_toself)
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rtl92d_loop_over_paths(hw, pstats);
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}
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static void _rtl92d_update_rxsignalstatistics(struct ieee80211_hw *hw,
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struct rtl_stats *pstats)
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{
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struct rtl_priv *rtlpriv = rtl_priv(hw);
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int weighting = 0;
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if (rtlpriv->stats.recv_signal_power == 0)
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rtlpriv->stats.recv_signal_power = pstats->recvsignalpower;
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if (pstats->recvsignalpower > rtlpriv->stats.recv_signal_power)
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weighting = 5;
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else if (pstats->recvsignalpower < rtlpriv->stats.recv_signal_power)
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weighting = (-5);
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rtlpriv->stats.recv_signal_power = (rtlpriv->stats.recv_signal_power *
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5 + pstats->recvsignalpower + weighting) / 6;
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}
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static void _rtl92d_process_pwdb(struct ieee80211_hw *hw,
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struct rtl_stats *pstats)
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{
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struct rtl_priv *rtlpriv = rtl_priv(hw);
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struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
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long undec_sm_pwdb;
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if (mac->opmode == NL80211_IFTYPE_ADHOC ||
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mac->opmode == NL80211_IFTYPE_AP)
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return;
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undec_sm_pwdb = rtlpriv->dm.undec_sm_pwdb;
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if (pstats->packet_toself || pstats->packet_beacon) {
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if (undec_sm_pwdb < 0)
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undec_sm_pwdb = pstats->rx_pwdb_all;
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if (pstats->rx_pwdb_all > (u32)undec_sm_pwdb) {
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undec_sm_pwdb = (((undec_sm_pwdb) *
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(RX_SMOOTH_FACTOR - 1)) +
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(pstats->rx_pwdb_all)) / (RX_SMOOTH_FACTOR);
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undec_sm_pwdb = undec_sm_pwdb + 1;
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} else {
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undec_sm_pwdb = (((undec_sm_pwdb) *
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(RX_SMOOTH_FACTOR - 1)) +
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(pstats->rx_pwdb_all)) / (RX_SMOOTH_FACTOR);
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}
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rtlpriv->dm.undec_sm_pwdb = undec_sm_pwdb;
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_rtl92d_update_rxsignalstatistics(hw, pstats);
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}
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}
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static void rtl92d_loop_over_streams(struct ieee80211_hw *hw,
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struct rtl_stats *pstats)
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{
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struct rtl_priv *rtlpriv = rtl_priv(hw);
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int stream;
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for (stream = 0; stream < 2; stream++) {
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if (pstats->rx_mimo_sig_qual[stream] != -1) {
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if (rtlpriv->stats.rx_evm_percentage[stream] == 0) {
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rtlpriv->stats.rx_evm_percentage[stream] =
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pstats->rx_mimo_sig_qual[stream];
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}
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rtlpriv->stats.rx_evm_percentage[stream] =
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((rtlpriv->stats.rx_evm_percentage[stream]
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* (RX_SMOOTH_FACTOR - 1)) +
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(pstats->rx_mimo_sig_qual[stream] * 1)) /
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(RX_SMOOTH_FACTOR);
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}
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}
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}
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static void _rtl92d_process_ui_link_quality(struct ieee80211_hw *hw,
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struct rtl_stats *pstats)
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{
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struct rtl_priv *rtlpriv = rtl_priv(hw);
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struct rt_smooth_data *ui_link_quality;
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u32 last_evm, tmpval;
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if (pstats->signalquality == 0)
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return;
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if (!pstats->packet_toself && !pstats->packet_beacon)
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return;
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ui_link_quality = &rtlpriv->stats.ui_link_quality;
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if (ui_link_quality->total_num++ >= PHY_LINKQUALITY_SLID_WIN_MAX) {
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ui_link_quality->total_num = PHY_LINKQUALITY_SLID_WIN_MAX;
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last_evm = ui_link_quality->elements[ui_link_quality->index];
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ui_link_quality->total_val -= last_evm;
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}
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ui_link_quality->total_val += pstats->signalquality;
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ui_link_quality->elements[ui_link_quality->index++] = pstats->signalquality;
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if (ui_link_quality->index >= PHY_LINKQUALITY_SLID_WIN_MAX)
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ui_link_quality->index = 0;
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tmpval = ui_link_quality->total_val / ui_link_quality->total_num;
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rtlpriv->stats.signal_quality = tmpval;
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rtlpriv->stats.last_sigstrength_inpercent = tmpval;
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rtl92d_loop_over_streams(hw, pstats);
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}
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static void _rtl92d_process_phyinfo(struct ieee80211_hw *hw,
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u8 *buffer,
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struct rtl_stats *pcurrent_stats)
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{
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if (!pcurrent_stats->packet_matchbssid &&
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!pcurrent_stats->packet_beacon)
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return;
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_rtl92d_process_ui_rssi(hw, pcurrent_stats);
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_rtl92d_process_pwdb(hw, pcurrent_stats);
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_rtl92d_process_ui_link_quality(hw, pcurrent_stats);
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}
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static void _rtl92d_translate_rx_signal_stuff(struct ieee80211_hw *hw,
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struct sk_buff *skb,
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struct rtl_stats *pstats,
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__le32 *pdesc,
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struct rx_fwinfo_92d *p_drvinfo)
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{
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struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
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struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
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struct ieee80211_hdr *hdr;
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bool packet_matchbssid;
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bool packet_beacon;
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bool packet_toself;
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u16 type, cfc;
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u8 *tmp_buf;
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u8 *praddr;
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__le16 fc;
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tmp_buf = skb->data + pstats->rx_drvinfo_size + pstats->rx_bufshift;
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hdr = (struct ieee80211_hdr *)tmp_buf;
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fc = hdr->frame_control;
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cfc = le16_to_cpu(fc);
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type = WLAN_FC_GET_TYPE(fc);
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praddr = hdr->addr1;
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packet_matchbssid = ((type != IEEE80211_FTYPE_CTL) &&
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ether_addr_equal(mac->bssid,
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(cfc & IEEE80211_FCTL_TODS) ? hdr->addr1 :
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(cfc & IEEE80211_FCTL_FROMDS) ? hdr->addr2 :
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hdr->addr3) &&
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(!pstats->hwerror) && (!pstats->crc) && (!pstats->icv));
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packet_toself = packet_matchbssid &&
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ether_addr_equal(praddr, rtlefuse->dev_addr);
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packet_beacon = ieee80211_is_beacon(fc);
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_rtl92d_query_rxphystatus(hw, pstats, pdesc, p_drvinfo,
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packet_matchbssid, packet_toself,
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packet_beacon);
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_rtl92d_process_phyinfo(hw, tmp_buf, pstats);
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}
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bool rtl92d_rx_query_desc(struct ieee80211_hw *hw, struct rtl_stats *stats,
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struct ieee80211_rx_status *rx_status,
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u8 *pdesc8, struct sk_buff *skb)
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{
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__le32 *pdesc = (__le32 *)pdesc8;
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struct rx_fwinfo_92d *p_drvinfo;
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u32 phystatus = get_rx_desc_physt(pdesc);
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stats->length = (u16)get_rx_desc_pkt_len(pdesc);
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stats->rx_drvinfo_size = (u8)get_rx_desc_drv_info_size(pdesc) *
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RX_DRV_INFO_SIZE_UNIT;
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stats->rx_bufshift = (u8)(get_rx_desc_shift(pdesc) & 0x03);
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stats->icv = (u16)get_rx_desc_icv(pdesc);
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stats->crc = (u16)get_rx_desc_crc32(pdesc);
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stats->hwerror = (stats->crc | stats->icv);
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stats->decrypted = !get_rx_desc_swdec(pdesc) &&
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get_rx_desc_enc_type(pdesc) != RX_DESC_ENC_NONE;
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stats->rate = (u8)get_rx_desc_rxmcs(pdesc);
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stats->shortpreamble = (u16)get_rx_desc_splcp(pdesc);
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stats->isampdu = (bool)(get_rx_desc_paggr(pdesc) == 1);
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stats->isfirst_ampdu = (bool)((get_rx_desc_paggr(pdesc) == 1) &&
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(get_rx_desc_faggr(pdesc) == 1));
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stats->timestamp_low = get_rx_desc_tsfl(pdesc);
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stats->rx_is40mhzpacket = (bool)get_rx_desc_bw(pdesc);
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stats->is_ht = (bool)get_rx_desc_rxht(pdesc);
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rx_status->freq = hw->conf.chandef.chan->center_freq;
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rx_status->band = hw->conf.chandef.chan->band;
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if (get_rx_desc_crc32(pdesc))
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rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
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if (get_rx_desc_bw(pdesc))
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rx_status->bw = RATE_INFO_BW_40;
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if (get_rx_desc_rxht(pdesc))
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rx_status->encoding = RX_ENC_HT;
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rx_status->flag |= RX_FLAG_MACTIME_START;
|
|
if (stats->decrypted)
|
|
rx_status->flag |= RX_FLAG_DECRYPTED;
|
|
rx_status->rate_idx = rtlwifi_rate_mapping(hw, stats->is_ht,
|
|
false, stats->rate);
|
|
rx_status->mactime = get_rx_desc_tsfl(pdesc);
|
|
if (phystatus) {
|
|
p_drvinfo = (struct rx_fwinfo_92d *)(skb->data +
|
|
stats->rx_bufshift);
|
|
_rtl92d_translate_rx_signal_stuff(hw, skb, stats, pdesc,
|
|
p_drvinfo);
|
|
}
|
|
/*rx_status->qual = stats->signal; */
|
|
rx_status->signal = stats->recvsignalpower + 10;
|
|
return true;
|
|
}
|
|
EXPORT_SYMBOL_GPL(rtl92d_rx_query_desc);
|
|
|
|
void rtl92d_set_desc(struct ieee80211_hw *hw, u8 *pdesc8, bool istx,
|
|
u8 desc_name, u8 *val)
|
|
{
|
|
__le32 *pdesc = (__le32 *)pdesc8;
|
|
|
|
if (istx) {
|
|
switch (desc_name) {
|
|
case HW_DESC_OWN:
|
|
wmb();
|
|
set_tx_desc_own(pdesc, 1);
|
|
break;
|
|
case HW_DESC_TX_NEXTDESC_ADDR:
|
|
set_tx_desc_next_desc_address(pdesc, *(u32 *)val);
|
|
break;
|
|
default:
|
|
WARN_ONCE(true, "rtl8192de: ERR txdesc :%d not processed\n",
|
|
desc_name);
|
|
break;
|
|
}
|
|
} else {
|
|
switch (desc_name) {
|
|
case HW_DESC_RXOWN:
|
|
wmb();
|
|
set_rx_desc_own(pdesc, 1);
|
|
break;
|
|
case HW_DESC_RXBUFF_ADDR:
|
|
set_rx_desc_buff_addr(pdesc, *(u32 *)val);
|
|
break;
|
|
case HW_DESC_RXPKT_LEN:
|
|
set_rx_desc_pkt_len(pdesc, *(u32 *)val);
|
|
break;
|
|
case HW_DESC_RXERO:
|
|
set_rx_desc_eor(pdesc, 1);
|
|
break;
|
|
default:
|
|
WARN_ONCE(true, "rtl8192de: ERR rxdesc :%d not processed\n",
|
|
desc_name);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
EXPORT_SYMBOL_GPL(rtl92d_set_desc);
|
|
|
|
u64 rtl92d_get_desc(struct ieee80211_hw *hw,
|
|
u8 *p_desc8, bool istx, u8 desc_name)
|
|
{
|
|
__le32 *p_desc = (__le32 *)p_desc8;
|
|
u32 ret = 0;
|
|
|
|
if (istx) {
|
|
switch (desc_name) {
|
|
case HW_DESC_OWN:
|
|
ret = get_tx_desc_own(p_desc);
|
|
break;
|
|
case HW_DESC_TXBUFF_ADDR:
|
|
ret = get_tx_desc_tx_buffer_address(p_desc);
|
|
break;
|
|
default:
|
|
WARN_ONCE(true, "rtl8192de: ERR txdesc :%d not processed\n",
|
|
desc_name);
|
|
break;
|
|
}
|
|
} else {
|
|
switch (desc_name) {
|
|
case HW_DESC_OWN:
|
|
ret = get_rx_desc_own(p_desc);
|
|
break;
|
|
case HW_DESC_RXPKT_LEN:
|
|
ret = get_rx_desc_pkt_len(p_desc);
|
|
break;
|
|
case HW_DESC_RXBUFF_ADDR:
|
|
ret = get_rx_desc_buff_addr(p_desc);
|
|
break;
|
|
default:
|
|
WARN_ONCE(true, "rtl8192de: ERR rxdesc :%d not processed\n",
|
|
desc_name);
|
|
break;
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL_GPL(rtl92d_get_desc);
|