// SPDX-License-Identifier: GPL-2.0 /* Copyright(c) 2009-2012 Realtek Corporation.*/ #include "../wifi.h" #include "../pci.h" #include "../base.h" #include "../stats.h" #include "reg.h" #include "def.h" #include "phy.h" #include "trx.h" #include "led.h" static u8 _rtl92ce_map_hwqueue_to_fwqueue(struct sk_buff *skb, u8 hw_queue) { __le16 fc = rtl_get_fc(skb); if (unlikely(ieee80211_is_beacon(fc))) return QSLT_BEACON; if (ieee80211_is_mgmt(fc) || ieee80211_is_ctl(fc)) return QSLT_MGNT; return skb->priority; } static void _rtl92ce_query_rxphystatus(struct ieee80211_hw *hw, struct rtl_stats *pstats, struct rx_desc_92c *pdesc, struct rx_fwinfo_92c *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; struct rtl_ps_ctl *ppsc = rtl_psc(rtlpriv); s8 rx_pwr_all = 0, rx_pwr[4]; u8 evm, pwdb_all, rf_rx_num = 0; u8 i, max_spatial_stream; u32 rssi, total_rssi = 0; bool is_cck_rate; is_cck_rate = RX_HAL_IS_CCK_RATE(pdesc->rxmcs); pstats->packet_matchbssid = packet_match_bssid; pstats->packet_toself = packet_toself; pstats->is_cck = is_cck_rate; pstats->packet_beacon = packet_beacon; pstats->rx_mimo_sig_qual[0] = -1; pstats->rx_mimo_sig_qual[1] = -1; if (is_cck_rate) { u8 report, cck_highpwr; cck_buf = (struct phy_sts_cck_8192s_t *)p_drvinfo; if (ppsc->rfpwr_state == ERFON) cck_highpwr = (u8) rtl_get_bbreg(hw, RFPGA0_XA_HSSIPARAMETER2, BIT(9)); 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 = -46 - (cck_agc_rpt & 0x3e); break; case 0x2: rx_pwr_all = -26 - (cck_agc_rpt & 0x3e); break; case 0x1: rx_pwr_all = -12 - (cck_agc_rpt & 0x3e); break; case 0x0: rx_pwr_all = 16 - (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 = -46 - ((cck_agc_rpt & 0x1f) << 1); break; case 0x2: rx_pwr_all = -26 - ((cck_agc_rpt & 0x1f) << 1); break; case 0x1: rx_pwr_all = -12 - ((cck_agc_rpt & 0x1f) << 1); break; case 0x0: rx_pwr_all = 16 - ((cck_agc_rpt & 0x1f) << 1); break; } } pwdb_all = rtl_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; /* (3) Get Signal Quality (EVM) */ 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_sig_qual[0] = sq; pstats->rx_mimo_sig_qual[1] = -1; } } else { rtlpriv->dm.rfpath_rxenable[0] = rtlpriv->dm.rfpath_rxenable[1] = true; /* (1)Get RSSI for HT rate */ for (i = RF90_PATH_A; i < RF90_PATH_MAX; i++) { /* we will judge RF RX path now. */ if (rtlpriv->dm.rfpath_rxenable[i]) rf_rx_num++; rx_pwr[i] = ((p_drvinfo->gain_trsw[i] & 0x3f) * 2) - 110; /* Translate DBM to percentage. */ rssi = rtl_query_rxpwrpercentage(rx_pwr[i]); total_rssi += rssi; /* Get Rx snr value in DB */ rtlpriv->stats.rx_snr_db[i] = (long)(p_drvinfo->rxsnr[i] / 2); /* Record Signal Strength for next packet */ if (packet_match_bssid) pstats->rx_mimo_signalstrength[i] = (u8) rssi; } /* (2)PWDB, Average PWDB calculated by * hardware (for rate adaptive) */ rx_pwr_all = ((p_drvinfo->pwdb_all >> 1) & 0x7f) - 110; pwdb_all = rtl_query_rxpwrpercentage(rx_pwr_all); pstats->rx_pwdb_all = pwdb_all; pstats->rxpower = rx_pwr_all; pstats->recvsignalpower = rx_pwr_all; /* (3)EVM of HT rate */ if (pstats->is_ht && pstats->rate >= DESC_RATEMCS8 && pstats->rate <= DESC_RATEMCS15) max_spatial_stream = 2; else max_spatial_stream = 1; for (i = 0; i < max_spatial_stream; i++) { evm = rtl_evm_db_to_percentage(p_drvinfo->rxevm[i]); if (packet_match_bssid) { /* Fill value in RFD, Get the first * spatial stream only */ if (i == 0) pstats->signalquality = (u8)(evm & 0xff); pstats->rx_mimo_sig_qual[i] = (u8)(evm & 0xff); } } } /* UI BSS List signal strength(in percentage), * make it good looking, from 0~100. */ if (is_cck_rate) pstats->signalstrength = (u8)(rtl_signal_scale_mapping(hw, pwdb_all)); else if (rf_rx_num != 0) pstats->signalstrength = (u8)(rtl_signal_scale_mapping(hw, total_rssi /= rf_rx_num)); } static void _rtl92ce_translate_rx_signal_stuff(struct ieee80211_hw *hw, struct sk_buff *skb, struct rtl_stats *pstats, struct rx_desc_92c *pdesc, struct rx_fwinfo_92c *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; __le16 fc; u16 type, c_fc; bool packet_matchbssid, packet_toself, packet_beacon = false; tmp_buf = skb->data + pstats->rx_drvinfo_size + pstats->rx_bufshift; hdr = (struct ieee80211_hdr *)tmp_buf; fc = hdr->frame_control; c_fc = le16_to_cpu(fc); type = WLAN_FC_GET_TYPE(fc); praddr = hdr->addr1; packet_matchbssid = ((IEEE80211_FTYPE_CTL != type) && ether_addr_equal(mac->bssid, (c_fc & IEEE80211_FCTL_TODS) ? hdr->addr1 : (c_fc & IEEE80211_FCTL_FROMDS) ? hdr->addr2 : hdr->addr3) && (!pstats->hwerror) && (!pstats->crc) && (!pstats->icv)); packet_toself = packet_matchbssid && ether_addr_equal(praddr, rtlefuse->dev_addr); if (ieee80211_is_beacon(fc)) packet_beacon = true; _rtl92ce_query_rxphystatus(hw, pstats, pdesc, p_drvinfo, packet_matchbssid, packet_toself, packet_beacon); rtl_process_phyinfo(hw, tmp_buf, pstats); } bool rtl92ce_rx_query_desc(struct ieee80211_hw *hw, struct rtl_stats *stats, struct ieee80211_rx_status *rx_status, u8 *p_desc8, struct sk_buff *skb) { struct rx_fwinfo_92c *p_drvinfo; struct rx_desc_92c *pdesc = (struct rx_desc_92c *)p_desc8; struct ieee80211_hdr *hdr; __le32 *p_desc = (__le32 *)p_desc8; u32 phystatus = get_rx_desc_physt(p_desc); stats->length = (u16)get_rx_desc_pkt_len(p_desc); stats->rx_drvinfo_size = (u8)get_rx_desc_drv_info_size(p_desc) * RX_DRV_INFO_SIZE_UNIT; stats->rx_bufshift = (u8)(get_rx_desc_shift(p_desc) & 0x03); stats->icv = (u16)get_rx_desc_icv(p_desc); stats->crc = (u16)get_rx_desc_crc32(p_desc); stats->hwerror = (stats->crc | stats->icv); stats->decrypted = !get_rx_desc_swdec(p_desc); stats->rate = (u8)get_rx_desc_rxmcs(p_desc); stats->shortpreamble = (u16)get_rx_desc_splcp(p_desc); stats->isampdu = (bool)(get_rx_desc_paggr(p_desc) == 1); stats->isfirst_ampdu = (bool)((get_rx_desc_paggr(p_desc) == 1) && (get_rx_desc_faggr(p_desc) == 1)); stats->timestamp_low = get_rx_desc_tsfl(p_desc); stats->rx_is40mhzpacket = (bool)get_rx_desc_bw(p_desc); stats->is_ht = (bool)get_rx_desc_rxht(p_desc); stats->is_cck = RX_HAL_IS_CCK_RATE(pdesc->rxmcs); rx_status->freq = hw->conf.chandef.chan->center_freq; rx_status->band = hw->conf.chandef.chan->band; hdr = (struct ieee80211_hdr *)(skb->data + stats->rx_drvinfo_size + stats->rx_bufshift); if (stats->crc) rx_status->flag |= RX_FLAG_FAILED_FCS_CRC; if (stats->rx_is40mhzpacket) rx_status->bw = RATE_INFO_BW_40; if (stats->is_ht) rx_status->encoding = RX_ENC_HT; rx_status->flag |= RX_FLAG_MACTIME_START; /* hw will set stats->decrypted true, if it finds the * frame is open data frame or mgmt frame. * So hw will not decryption robust managment frame * for IEEE80211w but still set status->decrypted * true, so here we should set it back to undecrypted * for IEEE80211w frame, and mac80211 sw will help * to decrypt it */ if (stats->decrypted) { if ((_ieee80211_is_robust_mgmt_frame(hdr)) && (ieee80211_has_protected(hdr->frame_control))) rx_status->flag &= ~RX_FLAG_DECRYPTED; else rx_status->flag |= RX_FLAG_DECRYPTED; } /* rate_idx: index of data rate into band's * supported rates or MCS index if HT rates * are use (RX_FLAG_HT) * Notice: this is diff with windows define */ rx_status->rate_idx = rtlwifi_rate_mapping(hw, stats->is_ht, false, stats->rate); rx_status->mactime = stats->timestamp_low; if (phystatus) { p_drvinfo = (struct rx_fwinfo_92c *)(skb->data + stats->rx_bufshift); _rtl92ce_translate_rx_signal_stuff(hw, skb, stats, pdesc, p_drvinfo); } /*rx_status->qual = stats->signal; */ rx_status->signal = stats->recvsignalpower + 10; return true; } void rtl92ce_tx_fill_desc(struct ieee80211_hw *hw, struct ieee80211_hdr *hdr, u8 *pdesc8, u8 *pbd_desc_tx, struct ieee80211_tx_info *info, struct ieee80211_sta *sta, struct sk_buff *skb, u8 hw_queue, struct rtl_tcb_desc *tcb_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_ps_ctl *ppsc = rtl_psc(rtl_priv(hw)); bool defaultadapter = true; __le32 *pdesc = (__le32 *)pdesc8; u16 seq_number; __le16 fc = hdr->frame_control; u8 fw_qsel = _rtl92ce_map_hwqueue_to_fwqueue(skb, hw_queue); bool firstseg = ((hdr->seq_ctrl & cpu_to_le16(IEEE80211_SCTL_FRAG)) == 0); bool lastseg = ((hdr->frame_control & cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) == 0); dma_addr_t mapping = dma_map_single(&rtlpci->pdev->dev, skb->data, skb->len, DMA_TO_DEVICE); u8 bw_40 = 0; if (dma_mapping_error(&rtlpci->pdev->dev, mapping)) { rtl_dbg(rtlpriv, COMP_SEND, DBG_TRACE, "DMA mapping error\n"); return; } rcu_read_lock(); sta = get_sta(hw, mac->vif, mac->bssid); if (mac->opmode == NL80211_IFTYPE_STATION) { bw_40 = mac->bw_40; } else if (mac->opmode == NL80211_IFTYPE_AP || mac->opmode == NL80211_IFTYPE_ADHOC || mac->opmode == NL80211_IFTYPE_MESH_POINT) { if (sta) bw_40 = sta->deflink.bandwidth >= IEEE80211_STA_RX_BW_40; } seq_number = (le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_SEQ) >> 4; rtl_get_tcb_desc(hw, info, sta, skb, tcb_desc); clear_pci_tx_desc_content(pdesc, sizeof(struct tx_desc_92c)); if (ieee80211_is_nullfunc(fc) || ieee80211_is_ctl(fc)) { firstseg = true; lastseg = true; } if (firstseg) { set_tx_desc_offset(pdesc, USB_HWDESC_HEADER_LEN); set_tx_desc_tx_rate(pdesc, tcb_desc->hw_rate); if (tcb_desc->use_shortgi || tcb_desc->use_shortpreamble) set_tx_desc_data_shortgi(pdesc, 1); if (info->flags & IEEE80211_TX_CTL_AMPDU) { set_tx_desc_agg_break(pdesc, 1); set_tx_desc_max_agg_num(pdesc, 0x14); } set_tx_desc_seq(pdesc, seq_number); set_tx_desc_rts_enable(pdesc, ((tcb_desc->rts_enable && !tcb_desc-> cts_enable) ? 1 : 0)); set_tx_desc_hw_rts_enable(pdesc, ((tcb_desc->rts_enable || tcb_desc->cts_enable) ? 1 : 0)); set_tx_desc_cts2self(pdesc, ((tcb_desc->cts_enable) ? 1 : 0)); set_tx_desc_rts_stbc(pdesc, ((tcb_desc->rts_stbc) ? 1 : 0)); set_tx_desc_rts_rate(pdesc, tcb_desc->rts_rate); set_tx_desc_rts_bw(pdesc, 0); set_tx_desc_rts_sc(pdesc, tcb_desc->rts_sc); set_tx_desc_rts_short(pdesc, ((tcb_desc->rts_rate <= DESC_RATE54M) ? (tcb_desc->rts_use_shortpreamble ? 1 : 0) : (tcb_desc->rts_use_shortgi ? 1 : 0))); if (bw_40) { if (tcb_desc->packet_bw) { set_tx_desc_data_bw(pdesc, 1); set_tx_desc_tx_sub_carrier(pdesc, 3); } else { set_tx_desc_data_bw(pdesc, 0); set_tx_desc_tx_sub_carrier(pdesc, mac->cur_40_prime_sc); } } else { set_tx_desc_data_bw(pdesc, 0); set_tx_desc_tx_sub_carrier(pdesc, 0); } set_tx_desc_linip(pdesc, 0); set_tx_desc_pkt_size(pdesc, (u16)skb->len); if (sta) { u8 ampdu_density = sta->deflink.ht_cap.ampdu_density; set_tx_desc_ampdu_density(pdesc, 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(pdesc, 0x1); break; case WLAN_CIPHER_SUITE_CCMP: set_tx_desc_sec_type(pdesc, 0x3); break; default: set_tx_desc_sec_type(pdesc, 0x0); break; } } set_tx_desc_pkt_id(pdesc, 0); set_tx_desc_queue_sel(pdesc, fw_qsel); set_tx_desc_data_rate_fb_limit(pdesc, 0x1F); set_tx_desc_rts_rate_fb_limit(pdesc, 0xF); set_tx_desc_disable_fb(pdesc, 0); set_tx_desc_use_rate(pdesc, tcb_desc->use_driver_rate ? 1 : 0); if (ieee80211_is_data_qos(fc)) { if (mac->rdg_en) { rtl_dbg(rtlpriv, COMP_SEND, DBG_TRACE, "Enable RDG function\n"); set_tx_desc_rdg_enable(pdesc, 1); set_tx_desc_htc(pdesc, 1); } } } rcu_read_unlock(); set_tx_desc_first_seg(pdesc, (firstseg ? 1 : 0)); set_tx_desc_last_seg(pdesc, (lastseg ? 1 : 0)); set_tx_desc_tx_buffer_size(pdesc, (u16)skb->len); set_tx_desc_tx_buffer_address(pdesc, mapping); if (rtlpriv->dm.useramask) { set_tx_desc_rate_id(pdesc, tcb_desc->ratr_index); set_tx_desc_macid(pdesc, tcb_desc->mac_id); } else { set_tx_desc_rate_id(pdesc, 0xC + tcb_desc->ratr_index); set_tx_desc_macid(pdesc, tcb_desc->ratr_index); } if ((!ieee80211_is_data_qos(fc)) && ppsc->fwctrl_lps) { set_tx_desc_hwseq_en(pdesc, 1); set_tx_desc_pkt_id(pdesc, 8); if (!defaultadapter) set_tx_desc_qos(pdesc, 1); } set_tx_desc_more_frag(pdesc, (lastseg ? 0 : 1)); if (is_multicast_ether_addr(ieee80211_get_DA(hdr)) || is_broadcast_ether_addr(ieee80211_get_DA(hdr))) { set_tx_desc_bmc(pdesc, 1); } rtl_dbg(rtlpriv, COMP_SEND, DBG_TRACE, "\n"); } void rtl92ce_tx_fill_cmddesc(struct ieee80211_hw *hw, u8 *pdesc8, bool firstseg, bool lastseg, struct sk_buff *skb) { struct rtl_priv *rtlpriv = rtl_priv(hw); struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); u8 fw_queue = QSLT_BEACON; __le32 *pdesc = (__le32 *)pdesc8; struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data); __le16 fc = hdr->frame_control; dma_addr_t mapping = dma_map_single(&rtlpci->pdev->dev, skb->data, skb->len, DMA_TO_DEVICE); if (dma_mapping_error(&rtlpci->pdev->dev, mapping)) { rtl_dbg(rtlpriv, COMP_SEND, DBG_TRACE, "DMA mapping error\n"); return; } clear_pci_tx_desc_content(pdesc, TX_DESC_SIZE); if (firstseg) set_tx_desc_offset(pdesc, USB_HWDESC_HEADER_LEN); set_tx_desc_tx_rate(pdesc, DESC_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_tx_buffer_size(pdesc, (u16)(skb->len)); set_tx_desc_tx_buffer_address(pdesc, mapping); set_tx_desc_rate_id(pdesc, 7); set_tx_desc_macid(pdesc, 0); set_tx_desc_own(pdesc, 1); set_tx_desc_pkt_size(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", pdesc, TX_DESC_SIZE); } void rtl92ce_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, "rtl8192ce: 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, "rtl8192ce: ERR rxdesc :%d not processed\n", desc_name); break; } } } u64 rtl92ce_get_desc(struct ieee80211_hw *hw, u8 *p_desc8, bool istx, u8 desc_name) { u32 ret = 0; __le32 *p_desc = (__le32 *)p_desc8; 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, "rtl8192ce: 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, "rtl8192ce: ERR rxdesc :%d not processed\n", desc_name); break; } } return ret; } bool rtl92ce_is_tx_desc_closed(struct ieee80211_hw *hw, u8 hw_queue, u16 index) { struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[hw_queue]; u8 *entry = (u8 *)(&ring->desc[ring->idx]); u8 own = (u8)rtl92ce_get_desc(hw, entry, true, HW_DESC_OWN); /*beacon packet will only use the first *descriptor defautly,and the own may not *be cleared by the hardware */ if (own) return false; return true; } void rtl92ce_tx_polling(struct ieee80211_hw *hw, u8 hw_queue) { struct rtl_priv *rtlpriv = rtl_priv(hw); if (hw_queue == BEACON_QUEUE) { rtl_write_word(rtlpriv, REG_PCIE_CTRL_REG, BIT(4)); } else { rtl_write_word(rtlpriv, REG_PCIE_CTRL_REG, BIT(0) << (hw_queue)); } }