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kernel-aes67/drivers/net/wireless/realtek/rtlwifi/rtl8192se/trx.c

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// SPDX-License-Identifier: GPL-2.0
/* Copyright(c) 2009-2012 Realtek Corporation.*/
#include "../wifi.h"
#include "../pci.h"
#include "../base.h"
#include "../stats.h"
#include "reg.h"
#include "def.h"
#include "phy.h"
#include "fw.h"
#include "trx.h"
#include "led.h"
static u8 _rtl92se_map_hwqueue_to_fwqueue(struct sk_buff *skb, u8 skb_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;
if (ieee80211_is_nullfunc(fc))
return QSLT_HIGH;
/* Kernel commit 1bf4bbb4024dcdab changed EAPOL packets to use
* queue V0 at priority 7; however, the RTL8192SE appears to have
* that queue at priority 6
*/
if (skb->priority == 7)
return QSLT_VO;
return skb->priority;
}
static void _rtl92se_query_rxphystatus(struct ieee80211_hw *hw,
struct rtl_stats *pstats, __le32 *pdesc,
struct rx_fwinfo *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 rf_rx_num = 0, evm, pwdb_all;
u8 i, max_spatial_stream;
u32 rssi, total_rssi = 0;
bool is_cck = pstats->is_cck;
pstats->packet_matchbssid = packet_match_bssid;
pstats->packet_toself = packet_toself;
pstats->packet_beacon = packet_beacon;
pstats->rx_mimo_sig_qual[0] = -1;
pstats->rx_mimo_sig_qual[1] = -1;
if (is_cck) {
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,
0x200);
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 = -40 - (cck_agc_rpt & 0x3e);
break;
case 0x2:
rx_pwr_all = -20 - (cck_agc_rpt & 0x3e);
break;
case 0x1:
rx_pwr_all = -2 - (cck_agc_rpt & 0x3e);
break;
case 0x0:
rx_pwr_all = 14 - (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 = -40 - ((cck_agc_rpt & 0x1f) << 1);
break;
case 0x2:
rx_pwr_all = -20 - ((cck_agc_rpt & 0x1f) << 1);
break;
case 0x1:
rx_pwr_all = -2 - ((cck_agc_rpt & 0x1f) << 1);
break;
case 0x0:
rx_pwr_all = 14 - ((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;
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;
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 = rtl_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) - 110;
pwdb_all = rtl_query_rxpwrpercentage(rx_pwr_all);
pstats->rx_pwdb_all = pwdb_all;
pstats->rxpower = rx_pwr_all;
pstats->recvsignalpower = rx_pwr_all;
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 = rtl_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)
pstats->signalstrength = (u8)(rtl_signal_scale_mapping(hw,
pwdb_all));
else if (rf_rx_num != 0)
pstats->signalstrength = (u8) (rtl_signal_scale_mapping(hw,
total_rssi /= rf_rx_num));
}
static void _rtl92se_translate_rx_signal_stuff(struct ieee80211_hw *hw,
struct sk_buff *skb, struct rtl_stats *pstats,
__le32 *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;
__le16 fc;
u16 type, cfc;
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;
_rtl92se_query_rxphystatus(hw, pstats, pdesc, p_drvinfo,
packet_matchbssid, packet_toself, packet_beacon);
rtl_process_phyinfo(hw, tmp_buf, pstats);
}
bool rtl92se_rx_query_desc(struct ieee80211_hw *hw, struct rtl_stats *stats,
struct ieee80211_rx_status *rx_status, u8 *pdesc8,
struct sk_buff *skb)
{
struct rx_fwinfo *p_drvinfo;
__le32 *pdesc = (__le32 *)pdesc8;
u32 phystatus = (u32)get_rx_status_desc_phy_status(pdesc);
struct ieee80211_hdr *hdr;
stats->length = (u16)get_rx_status_desc_pkt_len(pdesc);
stats->rx_drvinfo_size = (u8)get_rx_status_desc_drvinfo_size(pdesc) * 8;
stats->rx_bufshift = (u8)(get_rx_status_desc_shift(pdesc) & 0x03);
stats->icv = (u16)get_rx_status_desc_icv(pdesc);
stats->crc = (u16)get_rx_status_desc_crc32(pdesc);
stats->hwerror = (u16)(stats->crc | stats->icv);
stats->decrypted = !get_rx_status_desc_swdec(pdesc);
stats->rate = (u8)get_rx_status_desc_rx_mcs(pdesc);
stats->shortpreamble = (u16)get_rx_status_desc_splcp(pdesc);
stats->isampdu = (bool)(get_rx_status_desc_paggr(pdesc) == 1);
stats->isfirst_ampdu = (bool)((get_rx_status_desc_paggr(pdesc) == 1) &&
(get_rx_status_desc_faggr(pdesc) == 1));
stats->timestamp_low = get_rx_status_desc_tsfl(pdesc);
stats->rx_is40mhzpacket = (bool)get_rx_status_desc_bw(pdesc);
stats->is_ht = (bool)get_rx_status_desc_rx_ht(pdesc);
stats->is_cck = SE_RX_HAL_IS_CCK_RATE(pdesc);
if (stats->hwerror)
return false;
rx_status->freq = hw->conf.chandef.chan->center_freq;
rx_status->band = hw->conf.chandef.chan->band;
if (stats->crc)
rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
if (stats->rx_is40mhzpacket)
rx_status->bw = RATE_INFO_BW_40;
if (stats->is_ht)
rx_status->encoding = RX_ENC_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,
* hw will not decrypt robust managment frame
* for IEEE80211w but still set stats->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) {
hdr = (struct ieee80211_hdr *)(skb->data +
stats->rx_drvinfo_size + stats->rx_bufshift);
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;
}
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 *)(skb->data +
stats->rx_bufshift);
_rtl92se_translate_rx_signal_stuff(hw, skb, stats, pdesc,
p_drvinfo);
}
/*rx_status->qual = stats->signal; */
rx_status->signal = stats->recvsignalpower + 10;
return true;
}
void rtl92se_tx_fill_desc(struct ieee80211_hw *hw,
struct ieee80211_hdr *hdr, u8 *pdesc8,
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(rtl_priv(hw));
__le32 *pdesc = (__le32 *)pdesc8;
u16 seq_number;
__le16 fc = hdr->frame_control;
u8 reserved_macid = 0;
u8 fw_qsel = _rtl92se_map_hwqueue_to_fwqueue(skb, hw_queue);
bool firstseg = (!(hdr->seq_ctrl & cpu_to_le16(IEEE80211_SCTL_FRAG)));
bool lastseg = (!(hdr->frame_control &
cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)));
dma_addr_t mapping = dma_map_single(&rtlpci->pdev->dev, skb->data,
skb->len, DMA_TO_DEVICE);
u8 bw_40 = 0;
if (dma_mapping_error(&rtlpci->pdev->dev, mapping)) {
rtl_dbg(rtlpriv, COMP_SEND, DBG_TRACE,
"DMA mapping error\n");
return;
}
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->deflink.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);
CLEAR_PCI_TX_DESC_CONTENT(pdesc, TX_DESC_SIZE_RTL8192S);
if (ieee80211_is_nullfunc(fc) || ieee80211_is_ctl(fc)) {
firstseg = true;
lastseg = true;
}
if (firstseg) {
if (rtlpriv->dm.useramask) {
/* set txdesc macId */
if (ptcb_desc->mac_id < 32) {
set_tx_desc_macid(pdesc, ptcb_desc->mac_id);
reserved_macid |= ptcb_desc->mac_id;
}
}
set_tx_desc_rsvd_macid(pdesc, reserved_macid);
set_tx_desc_txht(pdesc, ((ptcb_desc->hw_rate >=
DESC_RATEMCS0) ? 1 : 0));
if (rtlhal->version == VERSION_8192S_ACUT) {
if (ptcb_desc->hw_rate == DESC_RATE1M ||
ptcb_desc->hw_rate == DESC_RATE2M ||
ptcb_desc->hw_rate == DESC_RATE5_5M ||
ptcb_desc->hw_rate == DESC_RATE11M) {
ptcb_desc->hw_rate = DESC_RATE12M;
}
}
set_tx_desc_tx_rate(pdesc, ptcb_desc->hw_rate);
if (ptcb_desc->use_shortgi || ptcb_desc->use_shortpreamble)
set_tx_desc_tx_short(pdesc, 0);
/* Aggregation related */
if (info->flags & IEEE80211_TX_CTL_AMPDU)
set_tx_desc_agg_enable(pdesc, 1);
/* For AMPDU, we must insert SSN into TX_DESC */
set_tx_desc_seq(pdesc, seq_number);
/* Protection mode related */
/* For 92S, if RTS/CTS are set, HW will execute RTS. */
/* We choose only one protection mode to execute */
set_tx_desc_rts_enable(pdesc, ((ptcb_desc->rts_enable &&
!ptcb_desc->cts_enable) ?
1 : 0));
set_tx_desc_cts_enable(pdesc, ((ptcb_desc->cts_enable) ?
1 : 0));
set_tx_desc_rts_stbc(pdesc, ((ptcb_desc->rts_stbc) ? 1 : 0));
set_tx_desc_rts_rate(pdesc, ptcb_desc->rts_rate);
set_tx_desc_rts_bandwidth(pdesc, 0);
set_tx_desc_rts_sub_carrier(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)));
/* Set Bandwidth and sub-channel settings. */
if (bw_40) {
if (ptcb_desc->packet_bw) {
set_tx_desc_tx_bandwidth(pdesc, 1);
/* use duplicated mode */
set_tx_desc_tx_sub_carrier(pdesc, 0);
} else {
set_tx_desc_tx_bandwidth(pdesc, 0);
set_tx_desc_tx_sub_carrier(pdesc,
mac->cur_40_prime_sc);
}
} else {
set_tx_desc_tx_bandwidth(pdesc, 0);
set_tx_desc_tx_sub_carrier(pdesc, 0);
}
/* 3 Fill necessary field in First Descriptor */
/*DWORD 0*/
set_tx_desc_linip(pdesc, 0);
set_tx_desc_offset(pdesc, 32);
set_tx_desc_pkt_size(pdesc, (u16)skb->len);
/*DWORD 1*/
set_tx_desc_ra_brsr_id(pdesc, ptcb_desc->ratr_index);
/* Fill security related */
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:
set_tx_desc_sec_type(pdesc, 0x1);
break;
case WLAN_CIPHER_SUITE_TKIP:
set_tx_desc_sec_type(pdesc, 0x2);
break;
case WLAN_CIPHER_SUITE_CCMP:
set_tx_desc_sec_type(pdesc, 0x3);
break;
default:
set_tx_desc_sec_type(pdesc, 0x0);
break;
}
}
/* Set Packet ID */
set_tx_desc_packet_id(pdesc, 0);
/* We will assign magement queue to BK. */
set_tx_desc_queue_sel(pdesc, fw_qsel);
/* Alwasy enable all rate fallback range */
set_tx_desc_data_rate_fb_limit(pdesc, 0x1F);
/* Fix: I don't kown why hw use 6.5M to tx when set it */
set_tx_desc_user_rate(pdesc,
ptcb_desc->use_driver_rate ? 1 : 0);
/* Set NON_QOS bit. */
if (!ieee80211_is_data_qos(fc))
set_tx_desc_non_qos(pdesc, 1);
}
/* Fill fields that are required to be initialized
* in all of the descriptors */
/*DWORD 0 */
set_tx_desc_first_seg(pdesc, (firstseg ? 1 : 0));
set_tx_desc_last_seg(pdesc, (lastseg ? 1 : 0));
/* DWORD 7 */
set_tx_desc_tx_buffer_size(pdesc, (u16)skb->len);
/* DOWRD 8 */
set_tx_desc_tx_buffer_address(pdesc, mapping);
rtl_dbg(rtlpriv, COMP_SEND, DBG_TRACE, "\n");
}
void rtl92se_tx_fill_cmddesc(struct ieee80211_hw *hw, u8 *pdesc8,
struct sk_buff *skb)
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
struct rtl_tcb_desc *tcb_desc = (struct rtl_tcb_desc *)(skb->cb);
__le32 *pdesc = (__le32 *)pdesc8;
dma_addr_t mapping = dma_map_single(&rtlpci->pdev->dev, skb->data,
skb->len, DMA_TO_DEVICE);
if (dma_mapping_error(&rtlpci->pdev->dev, mapping)) {
rtl_dbg(rtlpriv, COMP_SEND, DBG_TRACE,
"DMA mapping error\n");
return;
}
/* Clear all status */
CLEAR_PCI_TX_DESC_CONTENT(pdesc, TX_CMDDESC_SIZE_RTL8192S);
/* This bit indicate this packet is used for FW download. */
if (tcb_desc->cmd_or_init == DESC_PACKET_TYPE_INIT) {
/* For firmware download we only need to set LINIP */
set_tx_desc_linip(pdesc, tcb_desc->last_inipkt);
/* 92SE must set as 1 for firmware download HW DMA error */
set_tx_desc_first_seg(pdesc, 1);
set_tx_desc_last_seg(pdesc, 1);
/* 92SE need not to set TX packet size when firmware download */
set_tx_desc_pkt_size(pdesc, (u16)(skb->len));
set_tx_desc_tx_buffer_size(pdesc, (u16)(skb->len));
set_tx_desc_tx_buffer_address(pdesc, mapping);
wmb();
set_tx_desc_own(pdesc, 1);
} else { /* H2C Command Desc format (Host TXCMD) */
/* 92SE must set as 1 for firmware download HW DMA error */
set_tx_desc_first_seg(pdesc, 1);
set_tx_desc_last_seg(pdesc, 1);
set_tx_desc_offset(pdesc, 0x20);
/* Buffer size + command header */
set_tx_desc_pkt_size(pdesc, (u16)(skb->len));
/* Fixed queue of H2C command */
set_tx_desc_queue_sel(pdesc, 0x13);
le32p_replace_bits((__le32 *)skb->data, rtlhal->h2c_txcmd_seq,
GENMASK(30, 24));
set_tx_desc_tx_buffer_size(pdesc, (u16)(skb->len));
set_tx_desc_tx_buffer_address(pdesc, mapping);
wmb();
set_tx_desc_own(pdesc, 1);
}
}
void rtl92se_set_desc(struct ieee80211_hw *hw, u8 *pdesc8, bool istx,
u8 desc_name, u8 *val)
{
__le32 *pdesc = (__le32 *)pdesc8;
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:
WARN_ONCE(true, "rtl8192se: ERR txdesc :%d not processed\n",
desc_name);
break;
}
} else {
switch (desc_name) {
case HW_DESC_RXOWN:
wmb();
set_rx_status_desc_own(pdesc, 1);
break;
case HW_DESC_RXBUFF_ADDR:
set_rx_status__desc_buff_addr(pdesc, *(u32 *)val);
break;
case HW_DESC_RXPKT_LEN:
set_rx_status_desc_pkt_len(pdesc, *(u32 *)val);
break;
case HW_DESC_RXERO:
set_rx_status_desc_eor(pdesc, 1);
break;
default:
WARN_ONCE(true, "rtl8192se: ERR rxdesc :%d not processed\n",
desc_name);
break;
}
}
}
u64 rtl92se_get_desc(struct ieee80211_hw *hw,
u8 *desc8, bool istx, u8 desc_name)
{
u32 ret = 0;
__le32 *desc = (__le32 *)desc8;
if (istx) {
switch (desc_name) {
case HW_DESC_OWN:
ret = get_tx_desc_own(desc);
break;
case HW_DESC_TXBUFF_ADDR:
ret = get_tx_desc_tx_buffer_address(desc);
break;
default:
WARN_ONCE(true, "rtl8192se: ERR txdesc :%d not processed\n",
desc_name);
break;
}
} else {
switch (desc_name) {
case HW_DESC_OWN:
ret = get_rx_status_desc_own(desc);
break;
case HW_DESC_RXPKT_LEN:
ret = get_rx_status_desc_pkt_len(desc);
break;
case HW_DESC_RXBUFF_ADDR:
ret = get_rx_status_desc_buff_addr(desc);
break;
default:
WARN_ONCE(true, "rtl8192se: ERR rxdesc :%d not processed\n",
desc_name);
break;
}
}
return ret;
}
void rtl92se_tx_polling(struct ieee80211_hw *hw, u8 hw_queue)
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
rtl_write_word(rtlpriv, TP_POLL, BIT(0) << (hw_queue));
}
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