cregit-Linux how code gets into the kernel

Release 4.11 drivers/net/wireless/realtek/rtlwifi/rtl8821ae/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.
 *
 * 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 "../stats.h"
#include "reg.h"
#include "def.h"
#include "phy.h"
#include "trx.h"
#include "led.h"
#include "dm.h"
#include "phy.h"
#include "fw.h"


static u8 _rtl8821ae_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; }

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static u16 odm_cfo(s8 value) { int ret_val; if (value < 0) { ret_val = 0 - value; ret_val = (ret_val << 1) + (ret_val >> 1); /* set bit12 as 1 for negative cfo */ ret_val = ret_val | BIT(12); } else { ret_val = value; ret_val = (ret_val << 1) + (ret_val >> 1); } return ret_val; }

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static u8 _rtl8821ae_evm_dbm_jaguar(s8 value) { s8 ret_val = value; /* -33dB~0dB to 33dB ~ 0dB*/ if (ret_val == -128) ret_val = 127; else if (ret_val < 0) ret_val = 0 - ret_val; ret_val = ret_val >> 1; return ret_val; }

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static void query_rxphystatus(struct ieee80211_hw *hw, struct rtl_stats *pstatus, u8 *pdesc, struct rx_fwinfo_8821ae *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; struct rtl_dm *rtldm = rtl_dm(rtl_priv(hw)); struct rtl_phy *rtlphy = &rtlpriv->phy; s8 rx_pwr_all = 0, rx_pwr[4]; u8 rf_rx_num = 0, evm, evmdbm, 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_agc_rpt = p_phystrpt->cfosho[0]; /* (1)Hardware does not provide RSSI for CCK * (2)PWDB, Average PWDB cacluated by * hardware (for rate adaptive) */ cck_highpwr = (u8)rtlphy->cck_high_power; lan_idx = ((cck_agc_rpt & 0xE0) >> 5); vga_idx = (cck_agc_rpt & 0x1f); if (rtlpriv->rtlhal.hw_type == HARDWARE_TYPE_RTL8812AE) { switch (lan_idx) { case 7: if (vga_idx <= 27) /*VGA_idx = 27~2*/ 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: if (cck_highpwr) /*VGA_idx = 5~0*/ 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 += 6; 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; } } else { /* 8821 */ s8 pout = -6; switch (lan_idx) { case 5: rx_pwr_all = pout - 32 - (2*vga_idx); break; case 4: rx_pwr_all = pout - 24 - (2*vga_idx); break; case 2: rx_pwr_all = pout - 11 - (2*vga_idx); break; case 1: rx_pwr_all = pout + 5 - (2*vga_idx); break; case 0: rx_pwr_all = pout + 21 - (2*vga_idx); break; } pwdb_all = rtl_query_rxpwrpercentage(rx_pwr_all); } pstatus->rx_pwdb_all = pwdb_all; pstatus->recvsignalpower = rx_pwr_all; /* (3) Get Signal Quality (EVM) */ if (bpacket_match_bssid) { u8 sq; if (pstatus->rx_pwdb_all > 40) { sq = 100; } else { sq = p_phystrpt->pwdb_all; if (sq > 64) sq = 0; else if (sq < 20) sq = 100; else sq = ((64 - sq) * 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->gain_trsw[i] & 0x7f) - 110; /* Translate DBM to percentage. */ rssi = rtl_query_rxpwrpercentage(rx_pwr[i]); total_rssi += rssi; /* Get Rx snr value in DB */ pstatus->rx_snr[i] = p_phystrpt->rxsnr[i] / 2; rtlpriv->stats.rx_snr_db[i] = p_phystrpt->rxsnr[i] / 2; pstatus->cfo_short[i] = odm_cfo(p_phystrpt->cfosho[i]); pstatus->cfo_tail[i] = odm_cfo(p_phystrpt->cfotail[i]); /* Record Signal Strength for next packet */ pstatus->rx_mimo_signalstrength[i] = (u8)rssi; } /* (2)PWDB, Average PWDB cacluated by * hardware (for rate adaptive) */ rx_pwr_all = ((p_drvinfo->pwdb_all >> 1) & 0x7f) - 110; pwdb_all = rtl_query_rxpwrpercentage(rx_pwr_all); pstatus->rx_pwdb_all = pwdb_all; pstatus->rxpower = rx_pwr_all; pstatus->recvsignalpower = rx_pwr_all; /* (3)EVM of HT rate */ if ((pstatus->is_ht && pstatus->rate >= DESC_RATEMCS8 && pstatus->rate <= DESC_RATEMCS15) || (pstatus->is_vht && pstatus->rate >= DESC_RATEVHT2SS_MCS0 && pstatus->rate <= DESC_RATEVHT2SS_MCS9)) 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->rxevm[i]); evmdbm = _rtl8821ae_evm_dbm_jaguar(p_phystrpt->rxevm[i]); if (bpacket_match_bssid) { /* Fill value in RFD, Get the first * spatial stream only */ if (i == 0) pstatus->signalquality = evm; pstatus->rx_mimo_signalquality[i] = evm; pstatus->rx_mimo_evm_dbm[i] = evmdbm; } } if (bpacket_match_bssid) { for (i = RF90_PATH_A; i <= RF90_PATH_B; i++) rtl_priv(hw)->dm.cfo_tail[i] = (s8)p_phystrpt->cfotail[i]; 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)); /*HW antenna diversity*/ rtldm->fat_table.antsel_rx_keep_0 = p_phystrpt->antidx_anta; rtldm->fat_table.antsel_rx_keep_1 = p_phystrpt->antidx_antb; }

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static void translate_rx_signal_stuff(struct ieee80211_hw *hw, struct sk_buff *skb, struct rtl_stats *pstatus, u8 *pdesc, struct rx_fwinfo_8821ae *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; bool packet_matchbssid, packet_toself, packet_beacon; tmp_buf = skb->data + pstatus->rx_drvinfo_size + pstatus->rx_bufshift; hdr = (struct ieee80211_hdr *)tmp_buf; fc = hdr->frame_control; type = WLAN_FC_GET_TYPE(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(hdr->frame_control)) 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++; } query_rxphystatus(hw, pstatus, pdesc, p_drvinfo, packet_matchbssid, packet_toself, packet_beacon); /*_rtl8821ae_smart_antenna(hw, pstatus); */ rtl_process_phyinfo(hw, tmp_buf, pstatus); }

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static void _rtl8821ae_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); }

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static bool rtl8821ae_get_rxdesc_is_ht(struct ieee80211_hw *hw, u8 *pdesc) { struct rtl_priv *rtlpriv = rtl_priv(hw); u8 rx_rate = 0; rx_rate = GET_RX_DESC_RXMCS(pdesc); RT_TRACE(rtlpriv, COMP_RXDESC, DBG_LOUD, "rx_rate=0x%02x.\n", rx_rate); if ((rx_rate >= DESC_RATEMCS0) && (rx_rate <= DESC_RATEMCS15)) return true; return false; }

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static bool rtl8821ae_get_rxdesc_is_vht(struct ieee80211_hw *hw, u8 *pdesc) { struct rtl_priv *rtlpriv = rtl_priv(hw); u8 rx_rate = 0; rx_rate = GET_RX_DESC_RXMCS(pdesc); RT_TRACE(rtlpriv, COMP_RXDESC, DBG_LOUD, "rx_rate=0x%02x.\n", rx_rate); if (rx_rate >= DESC_RATEVHT1SS_MCS0) return true; return false; }

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static u8 rtl8821ae_get_rx_vht_nss(struct ieee80211_hw *hw, u8 *pdesc) { u8 rx_rate = 0; u8 vht_nss = 0; rx_rate = GET_RX_DESC_RXMCS(pdesc); if ((rx_rate >= DESC_RATEVHT1SS_MCS0) && (rx_rate <= DESC_RATEVHT1SS_MCS9)) vht_nss = 1; else if ((rx_rate >= DESC_RATEVHT2SS_MCS0) && (rx_rate <= DESC_RATEVHT2SS_MCS9)) vht_nss = 2; return vht_nss; }

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bool rtl8821ae_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_8821ae *p_drvinfo; struct ieee80211_hdr *hdr; u32 phystatus = GET_RX_DESC_PHYST(pdesc); 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->shortpreamble = (u16)GET_RX_DESC_SPLCP(pdesc); status->isampdu = (bool)(GET_RX_DESC_PAGGR(pdesc) == 1); status->isfirst_ampdu = (bool)(GET_RX_DESC_PAGGR(pdesc) == 1); status->timestamp_low = GET_RX_DESC_TSFL(pdesc); status->rx_packet_bw = GET_RX_DESC_BW(pdesc); status->macid = GET_RX_DESC_MACID(pdesc); status->is_short_gi = !(bool)GET_RX_DESC_SPLCP(pdesc); status->is_ht = rtl8821ae_get_rxdesc_is_ht(hw, pdesc); status->is_vht = rtl8821ae_get_rxdesc_is_vht(hw, pdesc); status->vht_nss = rtl8821ae_get_rx_vht_nss(hw, pdesc); status->is_cck = RTL8821AE_RX_HAL_IS_CCK_RATE(status->rate); RT_TRACE(rtlpriv, COMP_RXDESC, DBG_LOUD, "rx_packet_bw=%s,is_ht %d, is_vht %d, vht_nss=%d,is_short_gi %d.\n", (status->rx_packet_bw == 2) ? "80M" : (status->rx_packet_bw == 1) ? "40M" : "20M", status->is_ht, status->is_vht, status->vht_nss, status->is_short_gi); if (GET_RX_STATUS_DESC_RPT_SEL(pdesc)) status->packet_report_type = C2H_PACKET; else status->packet_report_type = NORMAL_RX; if (GET_RX_STATUS_DESC_PATTERN_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); if (status->crc) rx_status->flag |= RX_FLAG_FAILED_FCS_CRC; if (status->rx_packet_bw == HT_CHANNEL_WIDTH_20_40) rx_status->flag |= RX_FLAG_40MHZ; else if (status->rx_packet_bw == HT_CHANNEL_WIDTH_80) rx_status->vht_flag |= RX_VHT_FLAG_80MHZ; if (status->is_ht) rx_status->flag |= RX_FLAG_HT; if (status->is_vht) rx_status->flag |= RX_FLAG_VHT; if (status->is_short_gi) rx_status->flag |= RX_FLAG_SHORT_GI; rx_status->vht_nss = status->vht_nss; 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) */ rx_status->rate_idx = rtlwifi_rate_mapping(hw, status->is_ht, status->is_vht, status->rate); rx_status->mactime = status->timestamp_low; if (phystatus) { p_drvinfo = (struct rx_fwinfo_8821ae *)(skb->data + status->rx_bufshift); 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; }

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static u8 rtl8821ae_bw_mapping(struct ieee80211_hw *hw, struct rtl_tcb_desc *ptcb_desc) { struct rtl_priv *rtlpriv = rtl_priv(hw); struct rtl_phy *rtlphy = &rtlpriv->phy; u8 bw_setting_of_desc = 0; RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE, "rtl8821ae_bw_mapping, current_chan_bw %d, packet_bw %d\n", rtlphy->current_chan_bw, ptcb_desc->packet_bw); if (rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_80) { if (ptcb_desc->packet_bw == HT_CHANNEL_WIDTH_80) bw_setting_of_desc = 2; else if (ptcb_desc->packet_bw == HT_CHANNEL_WIDTH_20_40) bw_setting_of_desc = 1; else bw_setting_of_desc = 0; } else if (rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_20_40) { if ((ptcb_desc->packet_bw == HT_CHANNEL_WIDTH_20_40) || (ptcb_desc->packet_bw == HT_CHANNEL_WIDTH_80)) bw_setting_of_desc = 1; else bw_setting_of_desc = 0; } else { bw_setting_of_desc = 0; } return bw_setting_of_desc; }

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static u8 rtl8821ae_sc_mapping(struct ieee80211_hw *hw, struct rtl_tcb_desc *ptcb_desc) { struct rtl_priv *rtlpriv = rtl_priv(hw); struct rtl_phy *rtlphy = &rtlpriv->phy; struct rtl_mac *mac = rtl_mac(rtlpriv); u8 sc_setting_of_desc = 0; if (rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_80) { if (ptcb_desc->packet_bw == HT_CHANNEL_WIDTH_80) { sc_setting_of_desc = VHT_DATA_SC_DONOT_CARE; } else if (ptcb_desc->packet_bw == HT_CHANNEL_WIDTH_20_40) { if (mac->cur_80_prime_sc == HAL_PRIME_CHNL_OFFSET_LOWER) sc_setting_of_desc = VHT_DATA_SC_40_LOWER_OF_80MHZ; else if (mac->cur_80_prime_sc == HAL_PRIME_CHNL_OFFSET_UPPER) sc_setting_of_desc = VHT_DATA_SC_40_UPPER_OF_80MHZ; else RT_TRACE(rtlpriv, COMP_SEND, DBG_LOUD, "rtl8821ae_sc_mapping: Not Correct Primary40MHz Setting\n"); } else { if ((mac->cur_40_prime_sc == HAL_PRIME_CHNL_OFFSET_LOWER) && (mac->cur_80_prime_sc == HAL_PRIME_CHNL_OFFSET_LOWER)) sc_setting_of_desc = VHT_DATA_SC_20_LOWEST_OF_80MHZ; else if ((mac->cur_40_prime_sc == HAL_PRIME_CHNL_OFFSET_UPPER) && (mac->cur_80_prime_sc == HAL_PRIME_CHNL_OFFSET_LOWER)) sc_setting_of_desc = VHT_DATA_SC_20_LOWER_OF_80MHZ; else if ((mac->cur_40_prime_sc == HAL_PRIME_CHNL_OFFSET_LOWER) && (mac->cur_80_prime_sc == HAL_PRIME_CHNL_OFFSET_UPPER)) sc_setting_of_desc = VHT_DATA_SC_20_UPPER_OF_80MHZ; else if ((mac->cur_40_prime_sc == HAL_PRIME_CHNL_OFFSET_UPPER) && (mac->cur_80_prime_sc == HAL_PRIME_CHNL_OFFSET_UPPER)) sc_setting_of_desc = VHT_DATA_SC_20_UPPERST_OF_80MHZ; else RT_TRACE(rtlpriv, COMP_SEND, DBG_LOUD, "rtl8821ae_sc_mapping: Not Correct Primary40MHz Setting\n"); } } else if (rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_20_40) { if (ptcb_desc->packet_bw == HT_CHANNEL_WIDTH_20_40) { sc_setting_of_desc = VHT_DATA_SC_DONOT_CARE; } else if (ptcb_desc->packet_bw == HT_CHANNEL_WIDTH_20) { if (mac->cur_40_prime_sc == HAL_PRIME_CHNL_OFFSET_UPPER) { sc_setting_of_desc = VHT_DATA_SC_20_UPPER_OF_80MHZ; } else if (mac->cur_40_prime_sc == HAL_PRIME_CHNL_OFFSET_LOWER){ sc_setting_of_desc = VHT_DATA_SC_20_LOWER_OF_80MHZ; } else { sc_setting_of_desc = VHT_DATA_SC_DONOT_CARE; } } } else { sc_setting_of_desc = VHT_DATA_SC_DONOT_CARE; } return sc_setting_of_desc; }

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void rtl8821ae_tx_fill_desc(struct ieee80211_hw *hw, struct ieee80211_hdr *hdr, u8 *pdesc_tx, u8 *txbd, 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; unsigned int skb_len = skb->len; u8 fw_qsel = _rtl8821ae_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 short_gi = 0; 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\n"); return; } CLEAR_PCI_TX_DESC_CONTENT(pdesc, sizeof(struct tx_desc_8821ae)); 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); _rtl8821ae_insert_emcontent(ptcb_desc, (u8 *)(skb->data)); } } else { SET_TX_DESC_OFFSET(pdesc, USB_HWDESC_HEADER_LEN); } /* ptcb_desc->use_driver_rate = true; */ SET_TX_DESC_TX_RATE(pdesc, ptcb_desc->hw_rate); if (ptcb_desc->hw_rate > DESC_RATEMCS0) short_gi = (ptcb_desc->use_shortgi) ? 1 : 0; else short_gi = (ptcb_desc->use_shortpreamble) ? 1 : 0; SET_TX_DESC_DATA_SHORTGI(pdesc, short_gi); if (info->flags & IEEE80211_TX_CTL_AMPDU) { SET_TX_DESC_AGG_ENABLE(pdesc, 1); SET_TX_DESC_MAX_AGG_NUM(pdesc, 0x1f); } 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); SET_TX_DESC_DATA_BW(pdesc, rtl8821ae_bw_mapping(hw, ptcb_desc)); SET_TX_DESC_TX_SUB_CARRIER(pdesc, rtl8821ae_sc_mapping(hw, ptcb_desc)); SET_TX_DESC_LINIP(pdesc, 0); SET_TX_DESC_PKT_SIZE(pdesc, (u16)skb_len); 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 *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_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); 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_SIZE(pdesc, (u16)buf_len); SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping); /* if (rtlpriv->dm.useramask) { */ if (1) { 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->mac_id); } if (!ieee80211_is_data_qos(fc)) { SET_TX_DESC_HWSEQ_EN(pdesc, 1); SET_TX_DESC_HWSEQ_SEL(pdesc, 0); } 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); } rtl8821ae_dm_set_tx_ant_by_tx_info(hw, pdesc, ptcb_desc->mac_id); RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE, "\n"); }

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Larry Finger98399.90%150.00%
Joe Perches10.10%150.00%
Total984100.00%2100.00%


void rtl8821ae_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); if (pci_dma_mapping_error(rtlpci->pdev, mapping)) { RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE, "DMA mapping error\n"); return; } CLEAR_PCI_TX_DESC_CONTENT(pdesc, TX_DESC_SIZE); SET_TX_DESC_FIRST_SEG(pdesc, 1); SET_TX_DESC_LAST_SEG(pdesc, 1); SET_TX_DESC_PKT_SIZE((u8 *)pdesc, (u16)(skb->len)); SET_TX_DESC_OFFSET(pdesc, USB_HWDESC_HEADER_LEN); SET_TX_DESC_USE_RATE(pdesc, 1); SET_TX_DESC_TX_RATE(pdesc, DESC_RATE1M); SET_TX_DESC_DISABLE_FB(pdesc, 1); SET_TX_DESC_DATA_BW(pdesc, 0); SET_TX_DESC_HWSEQ_EN(pdesc, 1); SET_TX_DESC_QUEUE_SEL(pdesc, fw_queue); SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16)(skb->len)); SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping); SET_TX_DESC_MACID(pdesc, 0); SET_TX_DESC_OWN(pdesc, 1); RT_PRINT_DATA(rtlpriv, COMP_CMD, DBG_LOUD, "H2C Tx Cmd Content\n", pdesc, TX_DESC_SIZE); }

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Larry Finger23599.58%150.00%
Joe Perches10.42%150.00%
Total236100.00%2100.00%


void rtl8821ae_set_desc(struct ieee80211_hw *hw, u8 *pdesc, bool istx, u8 desc_name, u8 *val) { if (istx) { 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: WARN_ONCE(true, "rtl8821ae: ERR txdesc :%d not processed\n", desc_name); break; } } else { switch (desc_name) { case HW_DESC_RXOWN: 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, "rtl8821ae: ERR rxdesc :%d not processed\n", desc_name); break; } } }

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Larry Finger148100.00%2100.00%
Total148100.00%2100.00%


u32 rtl8821ae_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_TX_DESC_TX_BUFFER_ADDRESS(pdesc); break; default: WARN_ONCE(true, "rtl8821ae: ERR txdesc :%d not processed\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: WARN_ONCE(true, "rtl8821ae: ERR rxdesc :%d not processed\n", desc_name); break; } } return ret; }

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Larry Finger121100.00%2100.00%
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bool rtl8821ae_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)rtl8821ae_get_desc(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; }

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Larry Finger88100.00%1100.00%
Total88100.00%1100.00%


void rtl8821ae_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)); } }

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Larry Finger62100.00%1100.00%
Total62100.00%1100.00%


u32 rtl8821ae_rx_command_packet(struct ieee80211_hw *hw, const 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: rtl8821ae_c2h_packet_handler(hw, skb->data, (u8)skb->len); result = 1; RT_TRACE(rtlpriv, COMP_RECV, DBG_LOUD, "skb->len=%d\n\n", skb->len); break; default: RT_TRACE(rtlpriv, COMP_RECV, DBG_LOUD, "No this packet type!!\n"); break; } return result; }

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Larry Finger10497.20%150.00%
Colin Ian King32.80%150.00%
Total107100.00%2100.00%


Overall Contributors

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Larry Finger515798.89%342.86%
Priit Laes470.90%114.29%
Arnd Bergmann60.12%114.29%
Colin Ian King30.06%114.29%
Joe Perches20.04%114.29%
Total5215100.00%7100.00%
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