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linux/linux-5.4.31/drivers/net/wireless/realtek/rtlwifi/rtl8192ce/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 "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(s8 antpower)
{
if ((antpower <= -100) || (antpower >= 20))
return 0;
else if (antpower >= 0)
return 100;
else
return 100 + antpower;
}
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 = rtl_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_desc8, struct sk_buff *skb)
{
struct rx_fwinfo_92c *p_drvinfo;
struct rx_desc_92c *pdesc = (struct rx_desc_92c *)p_desc8;
struct ieee80211_hdr *hdr;
__le32 *p_desc = (__le32 *)p_desc8;
u32 phystatus = get_rx_desc_physt(p_desc);
stats->length = (u16)get_rx_desc_pkt_len(p_desc);
stats->rx_drvinfo_size = (u8)get_rx_desc_drv_info_size(p_desc) *
RX_DRV_INFO_SIZE_UNIT;
stats->rx_bufshift = (u8)(get_rx_desc_shift(p_desc) & 0x03);
stats->icv = (u16)get_rx_desc_icv(p_desc);
stats->crc = (u16)get_rx_desc_crc32(p_desc);
stats->hwerror = (stats->crc | stats->icv);
stats->decrypted = !get_rx_desc_swdec(p_desc);
stats->rate = (u8)get_rx_desc_rxmcs(p_desc);
stats->shortpreamble = (u16)get_rx_desc_splcp(p_desc);
stats->isampdu = (bool)(get_rx_desc_paggr(p_desc) == 1);
stats->isfirst_ampdu = (bool)((get_rx_desc_paggr(p_desc) == 1) &&
(get_rx_desc_faggr(p_desc) == 1));
stats->timestamp_low = get_rx_desc_tsfl(p_desc);
stats->rx_is40mhzpacket = (bool)get_rx_desc_bw(p_desc);
stats->is_ht = (bool)get_rx_desc_rxht(p_desc);
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->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.
* 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 *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 *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;
__le32 *pdesc = (__le32 *)pdesc8;
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\n");
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 *pdesc8, 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;
__le32 *pdesc = (__le32 *)pdesc8;
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);
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 *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, "rtl8192ce: ERR txdesc :%d not processed\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:
WARN_ONCE(true, "rtl8192ce: ERR rxdesc :%d not processed\n",
desc_name);
break;
}
}
}
u64 rtl92ce_get_desc(struct ieee80211_hw *hw, u8 *p_desc8,
bool istx, u8 desc_name)
{
u32 ret = 0;
__le32 *p_desc = (__le32 *)p_desc8;
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:
WARN_ONCE(true, "rtl8192ce: ERR txdesc :%d not processed\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:
WARN_ONCE(true, "rtl8192ce: ERR rxdesc :%d not processed\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(hw, 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));
}
}
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