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linux/drivers/net/wireless/rtlwifi/rtl8192ce/trx.c
Larry Finger fd3cb22ad8 rtlwifi: rtl8821ae: Switch to use common rate control routine 
With this change, all of the drivers now use the common routine. As this
driver has VHT capability, an additional parameter is needed, thus all the
drivers had to be modified.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2014-12-24 18:34:29 +02:00

769 lines
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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 "../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));
}
}
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