--- /dev/null
+/******************************************************************************
+ *
+ * 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 <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 "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;
+}
Code Review / kvmfornfv.git / blobdiff