diff options
Diffstat (limited to 'drivers/net/wireless/realtek/rtlwifi/rtl8192ce/trx.c')
| -rw-r--r-- | drivers/net/wireless/realtek/rtlwifi/rtl8192ce/trx.c | 768 |
1 files changed, 768 insertions, 0 deletions
diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8192ce/trx.c b/drivers/net/wireless/realtek/rtlwifi/rtl8192ce/trx.c new file mode 100644 index 000000000000..84ddd4d07a1d --- /dev/null +++ b/drivers/net/wireless/realtek/rtlwifi/rtl8192ce/trx.c @@ -0,0 +1,768 @@ +/****************************************************************************** + * + * Copyright(c) 2009-2012 Realtek Corporation. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA + * + * The full GNU General Public License is included in this distribution in the + * file called LICENSE. + * + * Contact Information: + * wlanfae <wlanfae@realtek.com> + * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park, + * Hsinchu 300, Taiwan. + * + * Larry Finger <Larry.Finger@lwfinger.net> + * + *****************************************************************************/ + +#include "../wifi.h" +#include "../pci.h" +#include "../base.h" +#include "../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 u8 _rtl92c_query_rxpwrpercentage(char antpower) +{ + if ((antpower <= -100) || (antpower >= 20)) + return 0; + else if (antpower >= 0) + return 100; + else + return 100 + antpower; +} + +static u8 _rtl92c_evm_db_to_percentage(char value) +{ + char ret_val; + ret_val = value; + + if (ret_val >= 0) + ret_val = 0; + + if (ret_val <= -33) + ret_val = -33; + + ret_val = 0 - ret_val; + ret_val *= 3; + + if (ret_val == 99) + ret_val = 100; + + return ret_val; +} + +static long _rtl92ce_signal_scale_mapping(struct ieee80211_hw *hw, + long currsig) +{ + long retsig; + + if (currsig >= 61 && currsig <= 100) + retsig = 90 + ((currsig - 60) / 4); + else if (currsig >= 41 && currsig <= 60) + retsig = 78 + ((currsig - 40) / 2); + else if (currsig >= 31 && currsig <= 40) + retsig = 66 + (currsig - 30); + else if (currsig >= 21 && currsig <= 30) + retsig = 54 + (currsig - 20); + else if (currsig >= 5 && currsig <= 20) + retsig = 42 + (((currsig - 5) * 2) / 3); + else if (currsig == 4) + retsig = 36; + else if (currsig == 3) + retsig = 27; + else if (currsig == 2) + retsig = 18; + else if (currsig == 1) + retsig = 9; + else + retsig = currsig; + + return retsig; +} + +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 = _rtl92c_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 cacluated by + * hardware (for rate adaptive) + */ + rx_pwr_all = ((p_drvinfo->pwdb_all >> 1) & 0x7f) - 110; + pwdb_all = _rtl92c_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 = _rtl92c_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) (_rtl92ce_signal_scale_mapping(hw, pwdb_all)); + else if (rf_rx_num != 0) + pstats->signalstrength = + (u8) (_rtl92ce_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_desc, struct sk_buff *skb) +{ + struct rx_fwinfo_92c *p_drvinfo; + struct rx_desc_92c *pdesc = (struct rx_desc_92c *)p_desc; + struct ieee80211_hdr *hdr; + u32 phystatus = GET_RX_DESC_PHYST(pdesc); + stats->length = (u16) GET_RX_DESC_PKT_LEN(pdesc); + stats->rx_drvinfo_size = (u8) GET_RX_DESC_DRV_INFO_SIZE(pdesc) * + RX_DRV_INFO_SIZE_UNIT; + stats->rx_bufshift = (u8) (GET_RX_DESC_SHIFT(pdesc) & 0x03); + stats->icv = (u16) GET_RX_DESC_ICV(pdesc); + stats->crc = (u16) GET_RX_DESC_CRC32(pdesc); + stats->hwerror = (stats->crc | stats->icv); + stats->decrypted = !GET_RX_DESC_SWDEC(pdesc); + stats->rate = (u8) GET_RX_DESC_RXMCS(pdesc); + stats->shortpreamble = (u16) GET_RX_DESC_SPLCP(pdesc); + stats->isampdu = (bool) (GET_RX_DESC_PAGGR(pdesc) == 1); + stats->isfirst_ampdu = (bool) ((GET_RX_DESC_PAGGR(pdesc) == 1) + && (GET_RX_DESC_FAGGR(pdesc) == 1)); + stats->timestamp_low = GET_RX_DESC_TSFL(pdesc); + stats->rx_is40Mhzpacket = (bool) GET_RX_DESC_BW(pdesc); + stats->is_ht = (bool)GET_RX_DESC_RXHT(pdesc); + + 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->flag |= RX_FLAG_40MHZ; + + if (stats->is_ht) + rx_status->flag |= RX_FLAG_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 *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 *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; + u8 *pdesc = pdesc_tx; + 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 = pci_map_single(rtlpci->pdev, + skb->data, skb->len, + PCI_DMA_TODEVICE); + + u8 bw_40 = 0; + + if (pci_dma_mapping_error(rtlpci->pdev, mapping)) { + RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE, + "DMA mapping error"); + 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->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->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) { + RT_TRACE(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); + } + + RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE, "\n"); +} + +void rtl92ce_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); + + struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data); + __le16 fc = hdr->frame_control; + + 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, 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 *pdesc, bool istx, + u8 desc_name, u8 *val) +{ + 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: + RT_ASSERT(false, "ERR txdesc :%d not process\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: + RT_ASSERT(false, "ERR rxdesc :%d not process\n", + desc_name); + break; + } + } +} + +u32 rtl92ce_get_desc(u8 *p_desc, bool istx, u8 desc_name) +{ + 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: + 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(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: + RT_ASSERT(false, "ERR rxdesc :%d not process\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(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)); + } +} + |