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tegrakernel/kernel/kernel-4.9/drivers/net/wireless/realtek/rtlwifi/rtl8192de/trx.c

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/******************************************************************************
*
* 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 "reg.h"
#include "def.h"
#include "phy.h"
#include "trx.h"
#include "led.h"
static u8 _rtl92de_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))
return QSLT_MGNT;
return skb->priority;
}
static u8 _rtl92d_query_rxpwrpercentage(s8 antpower)
{
if ((antpower <= -100) || (antpower >= 20))
return 0;
else if (antpower >= 0)
return 100;
else
return 100 + antpower;
}
static u8 _rtl92d_evm_db_to_percentage(s8 value)
{
s8 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 _rtl92de_translate_todbm(struct ieee80211_hw *hw,
u8 signal_strength_index)
{
long signal_power;
signal_power = (long)((signal_strength_index + 1) >> 1);
signal_power -= 95;
return signal_power;
}
static long _rtl92de_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 _rtl92de_query_rxphystatus(struct ieee80211_hw *hw,
struct rtl_stats *pstats,
struct rx_desc_92d *pdesc,
struct rx_fwinfo_92d *p_drvinfo,
bool packet_match_bssid,
bool packet_toself,
bool packet_beacon)
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
struct rtl_ps_ctl *ppsc = rtl_psc(rtlpriv);
struct phy_sts_cck_8192d *cck_buf;
s8 rx_pwr_all, rx_pwr[4];
u8 rf_rx_num = 0, evm, pwdb_all;
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->packet_beacon = packet_beacon;
pstats->is_cck = is_cck_rate;
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_8192d *)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 = _rtl92d_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;
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] = true;
rtlpriv->dm.rfpath_rxenable[1] = true;
for (i = RF90_PATH_A; i < RF6052_MAX_PATH; i++) {
if (rtlpriv->dm.rfpath_rxenable[i])
rf_rx_num++;
rx_pwr[i] = ((p_drvinfo->gain_trsw[i] & 0x3f) * 2)
- 110;
rssi = _rtl92d_query_rxpwrpercentage(rx_pwr[i]);
total_rssi += rssi;
rtlpriv->stats.rx_snr_db[i] =
(long)(p_drvinfo->rxsnr[i] / 2);
if (packet_match_bssid)
pstats->rx_mimo_signalstrength[i] = (u8) rssi;
}
rx_pwr_all = ((p_drvinfo->pwdb_all >> 1) & 0x7f) - 106;
pwdb_all = _rtl92d_query_rxpwrpercentage(rx_pwr_all);
pstats->rx_pwdb_all = pwdb_all;
pstats->rxpower = rx_pwr_all;
pstats->recvsignalpower = rx_pwr_all;
if (pdesc->rxht && pdesc->rxmcs >= DESC_RATEMCS8 &&
pdesc->rxmcs <= DESC_RATEMCS15)
max_spatial_stream = 2;
else
max_spatial_stream = 1;
for (i = 0; i < max_spatial_stream; i++) {
evm = _rtl92d_evm_db_to_percentage(p_drvinfo->rxevm[i]);
if (packet_match_bssid) {
if (i == 0)
pstats->signalquality =
(u8)(evm & 0xff);
pstats->rx_mimo_sig_qual[i] =
(u8)(evm & 0xff);
}
}
}
if (is_cck_rate)
pstats->signalstrength = (u8)(_rtl92de_signal_scale_mapping(hw,
pwdb_all));
else if (rf_rx_num != 0)
pstats->signalstrength = (u8)(_rtl92de_signal_scale_mapping(hw,
total_rssi /= rf_rx_num));
}
static void rtl92d_loop_over_paths(struct ieee80211_hw *hw,
struct rtl_stats *pstats)
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
struct rtl_phy *rtlphy = &(rtlpriv->phy);
u8 rfpath;
for (rfpath = RF90_PATH_A; rfpath < rtlphy->num_total_rfpath;
rfpath++) {
if (rtlpriv->stats.rx_rssi_percentage[rfpath] == 0) {
rtlpriv->stats.rx_rssi_percentage[rfpath] =
pstats->rx_mimo_signalstrength[rfpath];
}
if (pstats->rx_mimo_signalstrength[rfpath] >
rtlpriv->stats.rx_rssi_percentage[rfpath]) {
rtlpriv->stats.rx_rssi_percentage[rfpath] =
((rtlpriv->stats.rx_rssi_percentage[rfpath] *
(RX_SMOOTH_FACTOR - 1)) +
(pstats->rx_mimo_signalstrength[rfpath])) /
(RX_SMOOTH_FACTOR);
rtlpriv->stats.rx_rssi_percentage[rfpath] =
rtlpriv->stats.rx_rssi_percentage[rfpath] + 1;
} else {
rtlpriv->stats.rx_rssi_percentage[rfpath] =
((rtlpriv->stats.rx_rssi_percentage[rfpath] *
(RX_SMOOTH_FACTOR - 1)) +
(pstats->rx_mimo_signalstrength[rfpath])) /
(RX_SMOOTH_FACTOR);
}
}
}
static void _rtl92de_process_ui_rssi(struct ieee80211_hw *hw,
struct rtl_stats *pstats)
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
u32 last_rssi, tmpval;
if (pstats->packet_toself || pstats->packet_beacon) {
rtlpriv->stats.rssi_calculate_cnt++;
if (rtlpriv->stats.ui_rssi.total_num++ >=
PHY_RSSI_SLID_WIN_MAX) {
rtlpriv->stats.ui_rssi.total_num =
PHY_RSSI_SLID_WIN_MAX;
last_rssi = rtlpriv->stats.ui_rssi.elements[
rtlpriv->stats.ui_rssi.index];
rtlpriv->stats.ui_rssi.total_val -= last_rssi;
}
rtlpriv->stats.ui_rssi.total_val += pstats->signalstrength;
rtlpriv->stats.ui_rssi.elements
[rtlpriv->stats.ui_rssi.index++] =
pstats->signalstrength;
if (rtlpriv->stats.ui_rssi.index >= PHY_RSSI_SLID_WIN_MAX)
rtlpriv->stats.ui_rssi.index = 0;
tmpval = rtlpriv->stats.ui_rssi.total_val /
rtlpriv->stats.ui_rssi.total_num;
rtlpriv->stats.signal_strength = _rtl92de_translate_todbm(hw,
(u8) tmpval);
pstats->rssi = rtlpriv->stats.signal_strength;
}
if (!pstats->is_cck && pstats->packet_toself)
rtl92d_loop_over_paths(hw, pstats);
}
static void _rtl92de_update_rxsignalstatistics(struct ieee80211_hw *hw,
struct rtl_stats *pstats)
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
int weighting = 0;
if (rtlpriv->stats.recv_signal_power == 0)
rtlpriv->stats.recv_signal_power = pstats->recvsignalpower;
if (pstats->recvsignalpower > rtlpriv->stats.recv_signal_power)
weighting = 5;
else if (pstats->recvsignalpower < rtlpriv->stats.recv_signal_power)
weighting = (-5);
rtlpriv->stats.recv_signal_power = (rtlpriv->stats.recv_signal_power *
5 + pstats->recvsignalpower + weighting) / 6;
}
static void _rtl92de_process_pwdb(struct ieee80211_hw *hw,
struct rtl_stats *pstats)
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
long undec_sm_pwdb;
if (mac->opmode == NL80211_IFTYPE_ADHOC ||
mac->opmode == NL80211_IFTYPE_AP)
return;
else
undec_sm_pwdb = rtlpriv->dm.undec_sm_pwdb;
if (pstats->packet_toself || pstats->packet_beacon) {
if (undec_sm_pwdb < 0)
undec_sm_pwdb = pstats->rx_pwdb_all;
if (pstats->rx_pwdb_all > (u32) undec_sm_pwdb) {
undec_sm_pwdb = (((undec_sm_pwdb) *
(RX_SMOOTH_FACTOR - 1)) +
(pstats->rx_pwdb_all)) / (RX_SMOOTH_FACTOR);
undec_sm_pwdb = undec_sm_pwdb + 1;
} else {
undec_sm_pwdb = (((undec_sm_pwdb) *
(RX_SMOOTH_FACTOR - 1)) +
(pstats->rx_pwdb_all)) / (RX_SMOOTH_FACTOR);
}
rtlpriv->dm.undec_sm_pwdb = undec_sm_pwdb;
_rtl92de_update_rxsignalstatistics(hw, pstats);
}
}
static void rtl92d_loop_over_streams(struct ieee80211_hw *hw,
struct rtl_stats *pstats)
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
int stream;
for (stream = 0; stream < 2; stream++) {
if (pstats->rx_mimo_sig_qual[stream] != -1) {
if (rtlpriv->stats.rx_evm_percentage[stream] == 0) {
rtlpriv->stats.rx_evm_percentage[stream] =
pstats->rx_mimo_sig_qual[stream];
}
rtlpriv->stats.rx_evm_percentage[stream] =
((rtlpriv->stats.rx_evm_percentage[stream]
* (RX_SMOOTH_FACTOR - 1)) +
(pstats->rx_mimo_sig_qual[stream] * 1)) /
(RX_SMOOTH_FACTOR);
}
}
}
static void _rtl92de_process_ui_link_quality(struct ieee80211_hw *hw,
struct rtl_stats *pstats)
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
u32 last_evm, tmpval;
if (pstats->signalquality == 0)
return;
if (pstats->packet_toself || pstats->packet_beacon) {
if (rtlpriv->stats.ui_link_quality.total_num++ >=
PHY_LINKQUALITY_SLID_WIN_MAX) {
rtlpriv->stats.ui_link_quality.total_num =
PHY_LINKQUALITY_SLID_WIN_MAX;
last_evm = rtlpriv->stats.ui_link_quality.elements[
rtlpriv->stats.ui_link_quality.index];
rtlpriv->stats.ui_link_quality.total_val -= last_evm;
}
rtlpriv->stats.ui_link_quality.total_val +=
pstats->signalquality;
rtlpriv->stats.ui_link_quality.elements[
rtlpriv->stats.ui_link_quality.index++] =
pstats->signalquality;
if (rtlpriv->stats.ui_link_quality.index >=
PHY_LINKQUALITY_SLID_WIN_MAX)
rtlpriv->stats.ui_link_quality.index = 0;
tmpval = rtlpriv->stats.ui_link_quality.total_val /
rtlpriv->stats.ui_link_quality.total_num;
rtlpriv->stats.signal_quality = tmpval;
rtlpriv->stats.last_sigstrength_inpercent = tmpval;
rtl92d_loop_over_streams(hw, pstats);
}
}
static void _rtl92de_process_phyinfo(struct ieee80211_hw *hw,
u8 *buffer,
struct rtl_stats *pcurrent_stats)
{
if (!pcurrent_stats->packet_matchbssid &&
!pcurrent_stats->packet_beacon)
return;
_rtl92de_process_ui_rssi(hw, pcurrent_stats);
_rtl92de_process_pwdb(hw, pcurrent_stats);
_rtl92de_process_ui_link_quality(hw, pcurrent_stats);
}
static void _rtl92de_translate_rx_signal_stuff(struct ieee80211_hw *hw,
struct sk_buff *skb,
struct rtl_stats *pstats,
struct rx_desc_92d *pdesc,
struct rx_fwinfo_92d *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;
u16 type, cfc;
__le16 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;
cfc = le16_to_cpu(fc);
type = WLAN_FC_GET_TYPE(fc);
praddr = hdr->addr1;
packet_matchbssid = ((IEEE80211_FTYPE_CTL != type) &&
ether_addr_equal(mac->bssid,
(cfc & IEEE80211_FCTL_TODS) ? hdr->addr1 :
(cfc & 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;
_rtl92de_query_rxphystatus(hw, pstats, pdesc, p_drvinfo,
packet_matchbssid, packet_toself,
packet_beacon);
_rtl92de_process_phyinfo(hw, tmp_buf, pstats);
}
bool rtl92de_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_92d *p_drvinfo;
struct rx_desc_92d *pdesc = (struct rx_desc_92d *)p_desc;
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);
rx_status->freq = hw->conf.chandef.chan->center_freq;
rx_status->band = hw->conf.chandef.chan->band;
if (GET_RX_DESC_CRC32(pdesc))
rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
if (!GET_RX_DESC_SWDEC(pdesc))
rx_status->flag |= RX_FLAG_DECRYPTED;
if (GET_RX_DESC_BW(pdesc))
rx_status->flag |= RX_FLAG_40MHZ;
if (GET_RX_DESC_RXHT(pdesc))
rx_status->flag |= RX_FLAG_HT;
rx_status->flag |= RX_FLAG_MACTIME_START;
if (stats->decrypted)
rx_status->flag |= RX_FLAG_DECRYPTED;
rx_status->rate_idx = rtlwifi_rate_mapping(hw, stats->is_ht,
false, stats->rate);
rx_status->mactime = GET_RX_DESC_TSFL(pdesc);
if (phystatus) {
p_drvinfo = (struct rx_fwinfo_92d *)(skb->data +
stats->rx_bufshift);
_rtl92de_translate_rx_signal_stuff(hw,
skb, stats, pdesc,
p_drvinfo);
}
/*rx_status->qual = stats->signal; */
rx_status->signal = stats->recvsignalpower + 10;
return true;
}
static void _rtl92de_insert_emcontent(struct rtl_tcb_desc *ptcb_desc,
u8 *virtualaddress)
{
memset(virtualaddress, 0, 8);
SET_EARLYMODE_PKTNUM(virtualaddress, ptcb_desc->empkt_num);
SET_EARLYMODE_LEN0(virtualaddress, ptcb_desc->empkt_len[0]);
SET_EARLYMODE_LEN1(virtualaddress, ptcb_desc->empkt_len[1]);
SET_EARLYMODE_LEN2_1(virtualaddress, ptcb_desc->empkt_len[2] & 0xF);
SET_EARLYMODE_LEN2_2(virtualaddress, ptcb_desc->empkt_len[2] >> 4);
SET_EARLYMODE_LEN3(virtualaddress, ptcb_desc->empkt_len[3]);
SET_EARLYMODE_LEN4(virtualaddress, ptcb_desc->empkt_len[4]);
}
void rtl92de_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);
struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
u8 *pdesc = pdesc_tx;
u16 seq_number;
__le16 fc = hdr->frame_control;
unsigned int buf_len = 0;
unsigned int skb_len = skb->len;
u8 fw_qsel = _rtl92de_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;
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->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, 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_92d));
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_LOUD,
"Insert 8 byte.pTcb->EMPktNum:%d\n",
ptcb_desc->empkt_num);
_rtl92de_insert_emcontent(ptcb_desc,
(u8 *)(skb->data));
}
} else {
SET_TX_DESC_OFFSET(pdesc, USB_HWDESC_HEADER_LEN);
}
/* 5G have no CCK rate */
if (rtlhal->current_bandtype == BAND_ON_5G)
if (ptcb_desc->hw_rate < DESC_RATE6M)
ptcb_desc->hw_rate = DESC_RATE6M;
SET_TX_DESC_TX_RATE(pdesc, ptcb_desc->hw_rate);
if (ptcb_desc->use_shortgi || ptcb_desc->use_shortpreamble)
SET_TX_DESC_DATA_SHORTGI(pdesc, 1);
if (rtlhal->macphymode == DUALMAC_DUALPHY &&
ptcb_desc->hw_rate == DESC_RATEMCS7)
SET_TX_DESC_DATA_SHORTGI(pdesc, 1);
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, ((ptcb_desc->rts_enable
|| ptcb_desc->cts_enable) ? 1 : 0));
SET_TX_DESC_CTS2SELF(pdesc, ((ptcb_desc->cts_enable) ? 1 : 0));
SET_TX_DESC_RTS_STBC(pdesc, ((ptcb_desc->rts_stbc) ? 1 : 0));
/* 5G have no CCK rate */
if (rtlhal->current_bandtype == BAND_ON_5G)
if (ptcb_desc->rts_rate < DESC_RATE6M)
ptcb_desc->rts_rate = DESC_RATE6M;
SET_TX_DESC_RTS_RATE(pdesc, ptcb_desc->rts_rate);
SET_TX_DESC_RTS_BW(pdesc, 0);
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 (bw_40) {
if (ptcb_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;
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, ptcb_desc->disable_ratefallback ?
1 : 0);
SET_TX_DESC_USE_RATE(pdesc, ptcb_desc->use_driver_rate ? 1 : 0);
/* 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_SIZE(pdesc, (u16) buf_len);
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);
}
if (ieee80211_is_data_qos(fc))
SET_TX_DESC_QOS(pdesc, 1);
if ((!ieee80211_is_data_qos(fc)) && ppsc->fwctrl_lps) {
SET_TX_DESC_HWSEQ_EN(pdesc, 1);
SET_TX_DESC_PKT_ID(pdesc, 8);
}
SET_TX_DESC_MORE_FRAG(pdesc, (lastseg ? 0 : 1));
RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE, "\n");
}
void rtl92de_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));
struct rtl_ps_ctl *ppsc = rtl_psc(rtlpriv);
struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
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\n");
return;
}
CLEAR_PCI_TX_DESC_CONTENT(pdesc, TX_DESC_SIZE);
if (firstseg)
SET_TX_DESC_OFFSET(pdesc, USB_HWDESC_HEADER_LEN);
/* 5G have no CCK rate
* Caution: The macros below are multi-line expansions.
* The braces are needed no matter what checkpatch says
*/
if (rtlhal->current_bandtype == BAND_ON_5G) {
SET_TX_DESC_TX_RATE(pdesc, DESC_RATE6M);
} else {
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_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) && ppsc->fwctrl_lps) {
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);
wmb();
SET_TX_DESC_OWN(pdesc, 1);
}
void rtl92de_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 rtl92de_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 rtl92de_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)rtl92de_get_desc(entry, true, HW_DESC_OWN);
/* a beacon packet will only use the first
* descriptor by defaut, and the own bit may not
* be cleared by the hardware
*/
if (own)
return false;
return true;
}
void rtl92de_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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