/****************************************************************************** * * Copyright(c) 2009-2014 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. * * The full GNU General Public License is included in this distribution in the * file called LICENSE. * * Contact Information: * wlanfae * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park, * Hsinchu 300, Taiwan. * * Larry Finger * *****************************************************************************/ #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" #include "dm.h" #include "fw.h" static u8 _rtl92ee_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 _rtl92ee_query_rxphystatus(struct ieee80211_hw *hw, struct rtl_stats *pstatus, u8 *pdesc, struct rx_fwinfo *p_drvinfo, bool bpacket_match_bssid, bool bpacket_toself, bool packet_beacon) { struct rtl_priv *rtlpriv = rtl_priv(hw); struct phy_status_rpt *p_phystrpt = (struct phy_status_rpt *)p_drvinfo; char 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 is_cck = pstatus->is_cck; u8 lan_idx, vga_idx; /* Record it for next packet processing */ pstatus->packet_matchbssid = bpacket_match_bssid; pstatus->packet_toself = bpacket_toself; pstatus->packet_beacon = packet_beacon; pstatus->rx_mimo_signalquality[0] = -1; pstatus->rx_mimo_signalquality[1] = -1; if (is_cck) { u8 cck_highpwr; u8 cck_agc_rpt; /* CCK Driver info Structure is not the same as OFDM packet. */ cck_agc_rpt = p_phystrpt->cck_agc_rpt_ofdm_cfosho_a; /* (1)Hardware does not provide RSSI for CCK * (2)PWDB, Average PWDB cacluated by * hardware (for rate adaptive) */ cck_highpwr = (u8)rtl_get_bbreg(hw, RFPGA0_XA_HSSIPARAMETER2, BIT(9)); lan_idx = ((cck_agc_rpt & 0xE0) >> 5); vga_idx = (cck_agc_rpt & 0x1f); switch (lan_idx) { case 7: /*VGA_idx = 27~2*/ if (vga_idx <= 27) rx_pwr_all = -100 + 2 * (27 - vga_idx); else rx_pwr_all = -100; break; case 6: /*VGA_idx = 2~0*/ rx_pwr_all = -48 + 2 * (2 - vga_idx); break; case 5: /*VGA_idx = 7~5*/ rx_pwr_all = -42 + 2 * (7 - vga_idx); break; case 4: /*VGA_idx = 7~4*/ rx_pwr_all = -36 + 2 * (7 - vga_idx); break; case 3: /*VGA_idx = 7~0*/ rx_pwr_all = -24 + 2 * (7 - vga_idx); break; case 2: /*VGA_idx = 5~0*/ if (cck_highpwr) rx_pwr_all = -12 + 2 * (5 - vga_idx); else rx_pwr_all = -6 + 2 * (5 - vga_idx); break; case 1: rx_pwr_all = 8 - 2 * vga_idx; break; case 0: rx_pwr_all = 14 - 2 * vga_idx; break; default: break; } rx_pwr_all += 16; pwdb_all = rtl_query_rxpwrpercentage(rx_pwr_all); if (!cck_highpwr) { if (pwdb_all >= 80) pwdb_all = ((pwdb_all - 80) << 1) + ((pwdb_all - 80) >> 1) + 80; else if ((pwdb_all <= 78) && (pwdb_all >= 20)) pwdb_all += 3; if (pwdb_all > 100) pwdb_all = 100; } pstatus->rx_pwdb_all = pwdb_all; pstatus->bt_rx_rssi_percentage = pwdb_all; pstatus->recvsignalpower = rx_pwr_all; /* (3) Get Signal Quality (EVM) */ if (bpacket_match_bssid) { u8 sq, sq_rpt; if (pstatus->rx_pwdb_all > 40) { sq = 100; } else { sq_rpt = p_phystrpt->cck_sig_qual_ofdm_pwdb_all; if (sq_rpt > 64) sq = 0; else if (sq_rpt < 20) sq = 100; else sq = ((64 - sq_rpt) * 100) / 44; } pstatus->signalquality = sq; pstatus->rx_mimo_signalquality[0] = sq; pstatus->rx_mimo_signalquality[1] = -1; } } else { /* (1)Get RSSI for HT rate */ for (i = RF90_PATH_A; i < RF6052_MAX_PATH; i++) { /* we will judge RF RX path now. */ if (rtlpriv->dm.rfpath_rxenable[i]) rf_rx_num++; rx_pwr[i] = ((p_phystrpt->path_agc[i].gain & 0x3f) * 2) - 110; pstatus->rx_pwr[i] = rx_pwr[i]; /* Translate DBM to percentage. */ rssi = rtl_query_rxpwrpercentage(rx_pwr[i]); total_rssi += rssi; pstatus->rx_mimo_signalstrength[i] = (u8)rssi; } /* (2)PWDB, Average PWDB cacluated by * hardware (for rate adaptive) */ rx_pwr_all = ((p_phystrpt->cck_sig_qual_ofdm_pwdb_all >> 1) & 0x7f) - 110; pwdb_all = rtl_query_rxpwrpercentage(rx_pwr_all); pstatus->rx_pwdb_all = pwdb_all; pstatus->bt_rx_rssi_percentage = pwdb_all; pstatus->rxpower = rx_pwr_all; pstatus->recvsignalpower = rx_pwr_all; /* (3)EVM of HT rate */ if (pstatus->rate >= DESC_RATEMCS8 && pstatus->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_phystrpt->stream_rxevm[i]); if (bpacket_match_bssid) { /* Fill value in RFD, Get the first * spatial stream only */ if (i == 0) pstatus->signalquality = (u8)(evm & 0xff); pstatus->rx_mimo_signalquality[i] = (u8)(evm & 0xff); } } if (bpacket_match_bssid) { for (i = RF90_PATH_A; i <= RF90_PATH_B; i++) rtl_priv(hw)->dm.cfo_tail[i] = (int)p_phystrpt->path_cfotail[i]; if (rtl_priv(hw)->dm.packet_count == 0xffffffff) rtl_priv(hw)->dm.packet_count = 0; else rtl_priv(hw)->dm.packet_count++; } } /* UI BSS List signal strength(in percentage), * make it good looking, from 0~100. */ if (is_cck) pstatus->signalstrength = (u8)(rtl_signal_scale_mapping(hw, pwdb_all)); else if (rf_rx_num != 0) pstatus->signalstrength = (u8)(rtl_signal_scale_mapping(hw, total_rssi /= rf_rx_num)); } static void _rtl92ee_translate_rx_signal_stuff(struct ieee80211_hw *hw, struct sk_buff *skb, struct rtl_stats *pstatus, 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; bool packet_matchbssid, packet_toself, packet_beacon; tmp_buf = skb->data + pstatus->rx_drvinfo_size + pstatus->rx_bufshift + 24; hdr = (struct ieee80211_hdr *)tmp_buf; fc = hdr->frame_control; praddr = hdr->addr1; psaddr = ieee80211_get_SA(hdr); ether_addr_copy(pstatus->psaddr, psaddr); packet_matchbssid = (!ieee80211_is_ctl(fc) && (ether_addr_equal(mac->bssid, ieee80211_has_tods(fc) ? hdr->addr1 : ieee80211_has_fromds(fc) ? hdr->addr2 : hdr->addr3)) && (!pstatus->hwerror) && (!pstatus->crc) && (!pstatus->icv)); packet_toself = packet_matchbssid && (ether_addr_equal(praddr, rtlefuse->dev_addr)); if (ieee80211_is_beacon(fc)) packet_beacon = true; else packet_beacon = false; if (packet_beacon && packet_matchbssid) rtl_priv(hw)->dm.dbginfo.num_qry_beacon_pkt++; if (packet_matchbssid && ieee80211_is_data_qos(hdr->frame_control) && !is_multicast_ether_addr(ieee80211_get_DA(hdr))) { struct ieee80211_qos_hdr *hdr_qos = (struct ieee80211_qos_hdr *)tmp_buf; u16 tid = le16_to_cpu(hdr_qos->qos_ctrl) & 0xf; if (tid != 0 && tid != 3) rtl_priv(hw)->dm.dbginfo.num_non_be_pkt++; } _rtl92ee_query_rxphystatus(hw, pstatus, pdesc, p_drvinfo, packet_matchbssid, packet_toself, packet_beacon); rtl_process_phyinfo(hw, tmp_buf, pstatus); } static void _rtl92ee_insert_emcontent(struct rtl_tcb_desc *ptcb_desc, u8 *virtualaddress) { u32 dwtmp = 0; memset(virtualaddress, 0, 8); SET_EARLYMODE_PKTNUM(virtualaddress, ptcb_desc->empkt_num); if (ptcb_desc->empkt_num == 1) { dwtmp = ptcb_desc->empkt_len[0]; } else { dwtmp = ptcb_desc->empkt_len[0]; dwtmp += ((dwtmp % 4) ? (4 - dwtmp % 4) : 0) + 4; dwtmp += ptcb_desc->empkt_len[1]; } SET_EARLYMODE_LEN0(virtualaddress, dwtmp); if (ptcb_desc->empkt_num <= 3) { dwtmp = ptcb_desc->empkt_len[2]; } else { dwtmp = ptcb_desc->empkt_len[2]; dwtmp += ((dwtmp % 4) ? (4 - dwtmp % 4) : 0) + 4; dwtmp += ptcb_desc->empkt_len[3]; } SET_EARLYMODE_LEN1(virtualaddress, dwtmp); if (ptcb_desc->empkt_num <= 5) { dwtmp = ptcb_desc->empkt_len[4]; } else { dwtmp = ptcb_desc->empkt_len[4]; dwtmp += ((dwtmp % 4) ? (4 - dwtmp % 4) : 0) + 4; dwtmp += ptcb_desc->empkt_len[5]; } SET_EARLYMODE_LEN2_1(virtualaddress, dwtmp & 0xF); SET_EARLYMODE_LEN2_2(virtualaddress, dwtmp >> 4); if (ptcb_desc->empkt_num <= 7) { dwtmp = ptcb_desc->empkt_len[6]; } else { dwtmp = ptcb_desc->empkt_len[6]; dwtmp += ((dwtmp % 4) ? (4 - dwtmp % 4) : 0) + 4; dwtmp += ptcb_desc->empkt_len[7]; } SET_EARLYMODE_LEN3(virtualaddress, dwtmp); if (ptcb_desc->empkt_num <= 9) { dwtmp = ptcb_desc->empkt_len[8]; } else { dwtmp = ptcb_desc->empkt_len[8]; dwtmp += ((dwtmp % 4) ? (4 - dwtmp % 4) : 0) + 4; dwtmp += ptcb_desc->empkt_len[9]; } SET_EARLYMODE_LEN4(virtualaddress, dwtmp); } bool rtl92ee_rx_query_desc(struct ieee80211_hw *hw, struct rtl_stats *status, struct ieee80211_rx_status *rx_status, u8 *pdesc, struct sk_buff *skb) { struct rtl_priv *rtlpriv = rtl_priv(hw); struct rx_fwinfo *p_drvinfo; struct ieee80211_hdr *hdr; u32 phystatus = GET_RX_DESC_PHYST(pdesc); if (GET_RX_STATUS_DESC_RPT_SEL(pdesc) == 0) status->packet_report_type = NORMAL_RX; else status->packet_report_type = C2H_PACKET; status->length = (u16)GET_RX_DESC_PKT_LEN(pdesc); status->rx_drvinfo_size = (u8)GET_RX_DESC_DRV_INFO_SIZE(pdesc) * RX_DRV_INFO_SIZE_UNIT; status->rx_bufshift = (u8)(GET_RX_DESC_SHIFT(pdesc) & 0x03); status->icv = (u16)GET_RX_DESC_ICV(pdesc); status->crc = (u16)GET_RX_DESC_CRC32(pdesc); status->hwerror = (status->crc | status->icv); status->decrypted = !GET_RX_DESC_SWDEC(pdesc); status->rate = (u8)GET_RX_DESC_RXMCS(pdesc); status->isampdu = (bool)(GET_RX_DESC_PAGGR(pdesc) == 1); status->timestamp_low = GET_RX_DESC_TSFL(pdesc); status->is_cck = RTL92EE_RX_HAL_IS_CCK_RATE(status->rate); status->macid = GET_RX_DESC_MACID(pdesc); if (GET_RX_STATUS_DESC_MAGIC_MATCH(pdesc)) status->wake_match = BIT(2); else if (GET_RX_STATUS_DESC_MAGIC_MATCH(pdesc)) status->wake_match = BIT(1); else if (GET_RX_STATUS_DESC_UNICAST_MATCH(pdesc)) status->wake_match = BIT(0); else status->wake_match = 0; if (status->wake_match) RT_TRACE(rtlpriv, COMP_RXDESC, DBG_LOUD, "GGGGGGGGGGGGGet Wakeup Packet!! WakeMatch=%d\n", status->wake_match); rx_status->freq = hw->conf.chandef.chan->center_freq; rx_status->band = hw->conf.chandef.chan->band; hdr = (struct ieee80211_hdr *)(skb->data + status->rx_drvinfo_size + status->rx_bufshift + 24); if (status->crc) rx_status->flag |= RX_FLAG_FAILED_FCS_CRC; if (status->rx_is40Mhzpacket) rx_status->flag |= RX_FLAG_40MHZ; if (status->is_ht) rx_status->flag |= RX_FLAG_HT; rx_status->flag |= RX_FLAG_MACTIME_START; /* hw will set status->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 (status->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, status->is_ht, false, status->rate); rx_status->mactime = status->timestamp_low; if (phystatus) { p_drvinfo = (struct rx_fwinfo *)(skb->data + status->rx_bufshift + 24); _rtl92ee_translate_rx_signal_stuff(hw, skb, status, pdesc, p_drvinfo); } rx_status->signal = status->recvsignalpower + 10; if (status->packet_report_type == TX_REPORT2) { status->macid_valid_entry[0] = GET_RX_RPT2_DESC_MACID_VALID_1(pdesc); status->macid_valid_entry[1] = GET_RX_RPT2_DESC_MACID_VALID_2(pdesc); } return true; } /*in Windows, this == Rx_92EE_Interrupt*/ void rtl92ee_rx_check_dma_ok(struct ieee80211_hw *hw, u8 *header_desc, u8 queue_index) { u8 first_seg = 0; u8 last_seg = 0; u16 total_len = 0; u16 read_cnt = 0; if (header_desc == NULL) return; total_len = (u16)GET_RX_BUFFER_DESC_TOTAL_LENGTH(header_desc); first_seg = (u8)GET_RX_BUFFER_DESC_FS(header_desc); last_seg = (u8)GET_RX_BUFFER_DESC_LS(header_desc); while (total_len == 0 && first_seg == 0 && last_seg == 0) { read_cnt++; total_len = (u16)GET_RX_BUFFER_DESC_TOTAL_LENGTH(header_desc); first_seg = (u8)GET_RX_BUFFER_DESC_FS(header_desc); last_seg = (u8)GET_RX_BUFFER_DESC_LS(header_desc); if (read_cnt > 20) break; } } u16 rtl92ee_rx_desc_buff_remained_cnt(struct ieee80211_hw *hw, u8 queue_index) { struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); struct rtl_priv *rtlpriv = rtl_priv(hw); u16 read_point = 0, write_point = 0, remind_cnt = 0; u32 tmp_4byte = 0; static u16 last_read_point; static bool start_rx; tmp_4byte = rtl_read_dword(rtlpriv, REG_RXQ_TXBD_IDX); read_point = (u16)((tmp_4byte>>16) & 0x7ff); write_point = (u16)(tmp_4byte & 0x7ff); if (write_point != rtlpci->rx_ring[queue_index].next_rx_rp) { RT_TRACE(rtlpriv, COMP_RXDESC, DBG_DMESG, "!!!write point is 0x%x, reg 0x3B4 value is 0x%x\n", write_point, tmp_4byte); tmp_4byte = rtl_read_dword(rtlpriv, REG_RXQ_TXBD_IDX); read_point = (u16)((tmp_4byte>>16) & 0x7ff); write_point = (u16)(tmp_4byte & 0x7ff); } if (read_point > 0) start_rx = true; if (!start_rx) return 0; remind_cnt = calc_fifo_space(read_point, write_point); if (remind_cnt == 0) return 0; rtlpci->rx_ring[queue_index].next_rx_rp = write_point; last_read_point = read_point; return remind_cnt; } static u16 get_desc_addr_fr_q_idx(u16 queue_index) { u16 desc_address = REG_BEQ_TXBD_IDX; switch (queue_index) { case BK_QUEUE: desc_address = REG_BKQ_TXBD_IDX; break; case BE_QUEUE: desc_address = REG_BEQ_TXBD_IDX; break; case VI_QUEUE: desc_address = REG_VIQ_TXBD_IDX; break; case VO_QUEUE: desc_address = REG_VOQ_TXBD_IDX; break; case BEACON_QUEUE: desc_address = REG_BEQ_TXBD_IDX; break; case TXCMD_QUEUE: desc_address = REG_BEQ_TXBD_IDX; break; case MGNT_QUEUE: desc_address = REG_MGQ_TXBD_IDX; break; case HIGH_QUEUE: desc_address = REG_HI0Q_TXBD_IDX; break; case HCCA_QUEUE: desc_address = REG_BEQ_TXBD_IDX; break; default: break; } return desc_address; } u16 rtl92ee_get_available_desc(struct ieee80211_hw *hw, u8 q_idx) { struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); struct rtl_priv *rtlpriv = rtl_priv(hw); u16 point_diff = 0; u16 current_tx_read_point = 0, current_tx_write_point = 0; u32 tmp_4byte; tmp_4byte = rtl_read_dword(rtlpriv, get_desc_addr_fr_q_idx(q_idx)); current_tx_read_point = (u16)((tmp_4byte >> 16) & 0x0fff); current_tx_write_point = (u16)((tmp_4byte) & 0x0fff); point_diff = calc_fifo_space(current_tx_read_point, current_tx_write_point); rtlpci->tx_ring[q_idx].avl_desc = point_diff; return point_diff; } void rtl92ee_pre_fill_tx_bd_desc(struct ieee80211_hw *hw, u8 *tx_bd_desc, u8 *desc, u8 queue_index, struct sk_buff *skb, dma_addr_t addr) { struct rtl_priv *rtlpriv = rtl_priv(hw); struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); u32 pkt_len = skb->len; u16 desc_size = 40; /*tx desc size*/ u32 psblen = 0; u16 tx_page_size = 0; u32 total_packet_size = 0; u16 current_bd_desc; u8 i = 0; u16 real_desc_size = 0x28; u16 append_early_mode_size = 0; #if (RTL8192EE_SEG_NUM == 0) u8 segmentnum = 2; #elif (RTL8192EE_SEG_NUM == 1) u8 segmentnum = 4; #elif (RTL8192EE_SEG_NUM == 2) u8 segmentnum = 8; #endif tx_page_size = 2; current_bd_desc = rtlpci->tx_ring[queue_index].cur_tx_wp; total_packet_size = desc_size+pkt_len; if (rtlpriv->rtlhal.earlymode_enable) { if (queue_index < BEACON_QUEUE) { append_early_mode_size = 8; total_packet_size += append_early_mode_size; } } if (tx_page_size > 0) { psblen = (pkt_len + real_desc_size + append_early_mode_size) / (tx_page_size * 128); if (psblen * (tx_page_size * 128) < total_packet_size) psblen += 1; } /* Reset */ SET_TX_BUFF_DESC_LEN_0(tx_bd_desc, 0); SET_TX_BUFF_DESC_PSB(tx_bd_desc, 0); SET_TX_BUFF_DESC_OWN(tx_bd_desc, 0); for (i = 1; i < segmentnum; i++) { SET_TXBUFFER_DESC_LEN_WITH_OFFSET(tx_bd_desc, i, 0); SET_TXBUFFER_DESC_AMSDU_WITH_OFFSET(tx_bd_desc, i, 0); SET_TXBUFFER_DESC_ADD_LOW_WITH_OFFSET(tx_bd_desc, i, 0); #if (DMA_IS_64BIT == 1) SET_TXBUFFER_DESC_ADD_HIGT_WITH_OFFSET(tx_bd_desc, i, 0); #endif } SET_TX_BUFF_DESC_LEN_1(tx_bd_desc, 0); SET_TX_BUFF_DESC_AMSDU_1(tx_bd_desc, 0); SET_TX_BUFF_DESC_LEN_2(tx_bd_desc, 0); SET_TX_BUFF_DESC_AMSDU_2(tx_bd_desc, 0); SET_TX_BUFF_DESC_LEN_3(tx_bd_desc, 0); SET_TX_BUFF_DESC_AMSDU_3(tx_bd_desc, 0); /* Clear all status */ CLEAR_PCI_TX_DESC_CONTENT(desc, TX_DESC_SIZE); if (rtlpriv->rtlhal.earlymode_enable) { if (queue_index < BEACON_QUEUE) { /* This if needs braces */ SET_TX_BUFF_DESC_LEN_0(tx_bd_desc, desc_size + 8); } else { SET_TX_BUFF_DESC_LEN_0(tx_bd_desc, desc_size); } } else { SET_TX_BUFF_DESC_LEN_0(tx_bd_desc, desc_size); } SET_TX_BUFF_DESC_PSB(tx_bd_desc, psblen); SET_TX_BUFF_DESC_ADDR_LOW_0(tx_bd_desc, rtlpci->tx_ring[queue_index].dma + (current_bd_desc * TX_DESC_SIZE)); SET_TXBUFFER_DESC_LEN_WITH_OFFSET(tx_bd_desc, 1, pkt_len); /* don't using extendsion mode. */ SET_TXBUFFER_DESC_AMSDU_WITH_OFFSET(tx_bd_desc, 1, 0); SET_TXBUFFER_DESC_ADD_LOW_WITH_OFFSET(tx_bd_desc, 1, addr); SET_TX_DESC_PKT_SIZE(desc, (u16)(pkt_len)); SET_TX_DESC_TX_BUFFER_SIZE(desc, (u16)(pkt_len)); } void rtl92ee_tx_fill_desc(struct ieee80211_hw *hw, struct ieee80211_hdr *hdr, u8 *pdesc_tx, u8 *pbd_desc_tx, struct ieee80211_tx_info *info, struct ieee80211_sta *sta, 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(rtlpriv); u8 *pdesc = (u8 *)pdesc_tx; u16 seq_number; __le16 fc = hdr->frame_control; unsigned int buf_len = 0; u8 fw_qsel = _rtl92ee_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; u8 bw_40 = 0; u8 short_gi = 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); /* reserve 8 byte for AMPDU early mode */ if (rtlhal->earlymode_enable) { skb_push(skb, EM_HDR_LEN); memset(skb->data, 0, EM_HDR_LEN); } buf_len = skb->len; mapping = pci_map_single(rtlpci->pdev, skb->data, skb->len, PCI_DMA_TODEVICE); if (pci_dma_mapping_error(rtlpci->pdev, mapping)) { RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE, "DMA mapping error"); return; } if (pbd_desc_tx != NULL) rtl92ee_pre_fill_tx_bd_desc(hw, pbd_desc_tx, pdesc, hw_queue, skb, mapping); if (ieee80211_is_nullfunc(fc) || ieee80211_is_ctl(fc)) { firstseg = true; lastseg = true; } if (firstseg) { if (rtlhal->earlymode_enable) { SET_TX_DESC_PKT_OFFSET(pdesc, 1); SET_TX_DESC_OFFSET(pdesc, USB_HWDESC_HEADER_LEN + EM_HDR_LEN); if (ptcb_desc->empkt_num) { RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE, "Insert 8 byte.pTcb->EMPktNum:%d\n", ptcb_desc->empkt_num); _rtl92ee_insert_emcontent(ptcb_desc, (u8 *)(skb->data)); } } else { SET_TX_DESC_OFFSET(pdesc, USB_HWDESC_HEADER_LEN); } SET_TX_DESC_TX_RATE(pdesc, ptcb_desc->hw_rate); if (ieee80211_is_mgmt(fc)) { ptcb_desc->use_driver_rate = true; } else { if (rtlpriv->ra.is_special_data) { ptcb_desc->use_driver_rate = true; SET_TX_DESC_TX_RATE(pdesc, DESC_RATE11M); } else { ptcb_desc->use_driver_rate = false; } } if (ptcb_desc->hw_rate > DESC_RATEMCS0) short_gi = (ptcb_desc->use_shortgi) ? 1 : 0; else short_gi = (ptcb_desc->use_shortpreamble) ? 1 : 0; if (info->flags & IEEE80211_TX_CTL_AMPDU) { SET_TX_DESC_AGG_ENABLE(pdesc, 1); SET_TX_DESC_MAX_AGG_NUM(pdesc, 0x14); } SET_TX_DESC_SEQ(pdesc, seq_number); SET_TX_DESC_RTS_ENABLE(pdesc, ((ptcb_desc->rts_enable && !ptcb_desc->cts_enable) ? 1 : 0)); SET_TX_DESC_HW_RTS_ENABLE(pdesc, 0); SET_TX_DESC_CTS2SELF(pdesc, ((ptcb_desc->cts_enable) ? 1 : 0)); SET_TX_DESC_RTS_RATE(pdesc, ptcb_desc->rts_rate); SET_TX_DESC_RTS_SC(pdesc, ptcb_desc->rts_sc); SET_TX_DESC_RTS_SHORT(pdesc, ((ptcb_desc->rts_rate <= DESC_RATE54M) ? (ptcb_desc->rts_use_shortpreamble ? 1 : 0) : (ptcb_desc->rts_use_shortgi ? 1 : 0))); if (ptcb_desc->tx_enable_sw_calc_duration) SET_TX_DESC_NAV_USE_HDR(pdesc, 1); if (bw_40) { if (ptcb_desc->packet_bw == HT_CHANNEL_WIDTH_20_40) { 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); if (sta) { u8 ampdu_density = sta->ht_cap.ampdu_density; SET_TX_DESC_AMPDU_DENSITY(pdesc, ampdu_density); } if (info->control.hw_key) { struct ieee80211_key_conf *key = info->control.hw_key; switch (key->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_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, ptcb_desc->disable_ratefallback ? 1 : 0); SET_TX_DESC_USE_RATE(pdesc, ptcb_desc->use_driver_rate ? 1 : 0); /*SET_TX_DESC_PWR_STATUS(pdesc, pwr_status);*/ /* Set TxRate and RTSRate in TxDesc */ /* This prevent Tx initial rate of new-coming packets */ /* from being overwritten by retried packet rate.*/ if (!ptcb_desc->use_driver_rate) { /*SET_TX_DESC_RTS_RATE(pdesc, 0x08); */ /* SET_TX_DESC_TX_RATE(pdesc, 0x0b); */ } 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(pdesc, 1); SET_TX_DESC_HTC(pdesc, 1); } } } SET_TX_DESC_FIRST_SEG(pdesc, (firstseg ? 1 : 0)); SET_TX_DESC_LAST_SEG(pdesc, (lastseg ? 1 : 0)); SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping); if (rtlpriv->dm.useramask) { SET_TX_DESC_RATE_ID(pdesc, ptcb_desc->ratr_index); SET_TX_DESC_MACID(pdesc, ptcb_desc->mac_id); } else { SET_TX_DESC_RATE_ID(pdesc, 0xC + ptcb_desc->ratr_index); SET_TX_DESC_MACID(pdesc, ptcb_desc->ratr_index); } 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); } RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE, "\n"); } void rtl92ee_tx_fill_cmddesc(struct ieee80211_hw *hw, u8 *pdesc, 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; dma_addr_t mapping = pci_map_single(rtlpci->pdev, skb->data, skb->len, PCI_DMA_TODEVICE); u8 txdesc_len = 40; if (pci_dma_mapping_error(rtlpci->pdev, mapping)) { RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE, "DMA mapping error"); return; } CLEAR_PCI_TX_DESC_CONTENT(pdesc, txdesc_len); if (firstseg) SET_TX_DESC_OFFSET(pdesc, txdesc_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((u8 *)pdesc, (u16)(skb->len)); SET_TX_DESC_FIRST_SEG(pdesc, 1); SET_TX_DESC_LAST_SEG(pdesc, 1); SET_TX_DESC_OFFSET(pdesc, 40); SET_TX_DESC_USE_RATE(pdesc, 1); RT_PRINT_DATA(rtlpriv, COMP_CMD, DBG_LOUD, "H2C Tx Cmd Content\n", pdesc, txdesc_len); } void rtl92ee_set_desc(struct ieee80211_hw *hw, u8 *pdesc, bool istx, u8 desc_name, u8 *val) { struct rtl_priv *rtlpriv = rtl_priv(hw); u16 cur_tx_rp = 0; u16 cur_tx_wp = 0; static u16 last_txw_point; static bool over_run; u32 tmp = 0; u8 q_idx = *val; if (istx) { switch (desc_name) { case HW_DESC_TX_NEXTDESC_ADDR: SET_TX_DESC_NEXT_DESC_ADDRESS(pdesc, *(u32 *)val); break; case HW_DESC_OWN:{ struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[q_idx]; u16 max_tx_desc = ring->entries; if (q_idx == BEACON_QUEUE) { ring->cur_tx_wp = 0; ring->cur_tx_rp = 0; SET_TX_BUFF_DESC_OWN(pdesc, 1); return; } ring->cur_tx_wp = ((ring->cur_tx_wp + 1) % max_tx_desc); if (over_run) { ring->cur_tx_wp = 0; over_run = false; } if (ring->avl_desc > 1) { ring->avl_desc--; rtl_write_word(rtlpriv, get_desc_addr_fr_q_idx(q_idx), ring->cur_tx_wp); if (q_idx == 1) last_txw_point = cur_tx_wp; } if (ring->avl_desc < (max_tx_desc - 15)) { u16 point_diff = 0; tmp = rtl_read_dword(rtlpriv, get_desc_addr_fr_q_idx(q_idx)); cur_tx_rp = (u16)((tmp >> 16) & 0x0fff); cur_tx_wp = (u16)(tmp & 0x0fff); ring->cur_tx_wp = cur_tx_wp; ring->cur_tx_rp = cur_tx_rp; point_diff = ((cur_tx_rp > cur_tx_wp) ? (cur_tx_rp - cur_tx_wp) : (TX_DESC_NUM_92E - 1 - cur_tx_wp + cur_tx_rp)); ring->avl_desc = point_diff; } } break; } } else { switch (desc_name) { case HW_DESC_RX_PREPARE: SET_RX_BUFFER_DESC_LS(pdesc, 0); SET_RX_BUFFER_DESC_FS(pdesc, 0); SET_RX_BUFFER_DESC_TOTAL_LENGTH(pdesc, 0); SET_RX_BUFFER_DESC_DATA_LENGTH(pdesc, MAX_RECEIVE_BUFFER_SIZE + RX_DESC_SIZE); SET_RX_BUFFER_PHYSICAL_LOW(pdesc, *(u32 *)val); break; case HW_DESC_RXERO: SET_RX_DESC_EOR(pdesc, 1); break; default: RT_ASSERT(false, "ERR rxdesc :%d not process\n", desc_name); break; } } } u32 rtl92ee_get_desc(u8 *pdesc, bool istx, u8 desc_name) { u32 ret = 0; if (istx) { switch (desc_name) { case HW_DESC_OWN: ret = GET_TX_DESC_OWN(pdesc); break; case HW_DESC_TXBUFF_ADDR: ret = GET_TXBUFFER_DESC_ADDR_LOW(pdesc, 1); 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_DESC_OWN(pdesc); break; case HW_DESC_RXPKT_LEN: ret = GET_RX_DESC_PKT_LEN(pdesc); break; case HW_DESC_RXBUFF_ADDR: ret = GET_RX_DESC_BUFF_ADDR(pdesc); break; default: RT_ASSERT(false, "ERR rxdesc :%d not process\n", desc_name); break; } } return ret; } bool rtl92ee_is_tx_desc_closed(struct ieee80211_hw *hw, u8 hw_queue, u16 index) { struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); struct rtl_priv *rtlpriv = rtl_priv(hw); u16 read_point, write_point, available_desc_num; bool ret = false; static u8 stop_report_cnt; struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[hw_queue]; { u16 point_diff = 0; u16 cur_tx_rp, cur_tx_wp; u32 tmpu32 = 0; tmpu32 = rtl_read_dword(rtlpriv, get_desc_addr_fr_q_idx(hw_queue)); cur_tx_rp = (u16)((tmpu32 >> 16) & 0x0fff); cur_tx_wp = (u16)(tmpu32 & 0x0fff); ring->cur_tx_wp = cur_tx_wp; ring->cur_tx_rp = cur_tx_rp; point_diff = ((cur_tx_rp > cur_tx_wp) ? (cur_tx_rp - cur_tx_wp) : (TX_DESC_NUM_92E - cur_tx_wp + cur_tx_rp)); ring->avl_desc = point_diff; } read_point = ring->cur_tx_rp; write_point = ring->cur_tx_wp; available_desc_num = ring->avl_desc; if (write_point > read_point) { if (index < write_point && index >= read_point) ret = false; else ret = true; } else if (write_point < read_point) { if (index > write_point && index < read_point) ret = true; else ret = false; } else { if (index != read_point) ret = true; } if (hw_queue == BEACON_QUEUE) ret = true; if (rtlpriv->rtlhal.driver_is_goingto_unload || rtlpriv->psc.rfoff_reason > RF_CHANGE_BY_PS) ret = true; if (hw_queue < BEACON_QUEUE) { if (!ret) stop_report_cnt++; else stop_report_cnt = 0; } return ret; } void rtl92ee_tx_polling(struct ieee80211_hw *hw, u8 hw_queue) { } u32 rtl92ee_rx_command_packet(struct ieee80211_hw *hw, struct rtl_stats status, struct sk_buff *skb) { u32 result = 0; struct rtl_priv *rtlpriv = rtl_priv(hw); switch (status.packet_report_type) { case NORMAL_RX: result = 0; break; case C2H_PACKET: rtl92ee_c2h_packet_handler(hw, skb->data, (u8)skb->len); result = 1; break; default: RT_TRACE(rtlpriv, COMP_RECV, DBG_TRACE, "Unknown packet type %d\n", status.packet_report_type); break; } return result; }