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OpenCloudOS-Kernel/drivers/net/wireless/rtlwifi/rtl8192ee/trx.c

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/******************************************************************************
*
* 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;
}
/* mac80211's rate_idx is like this:
*
* 2.4G band:rx_status->band == IEEE80211_BAND_2GHZ
*
* B/G rate:
* (rx_status->flag & RX_FLAG_HT) = 0,
* DESC92C_RATE1M-->DESC92C_RATE54M ==> idx is 0-->11,
*
* N rate:
* (rx_status->flag & RX_FLAG_HT) = 1,
* DESC92C_RATEMCS0-->DESC92C_RATEMCS15 ==> idx is 0-->15
*
* 5G band:rx_status->band == IEEE80211_BAND_5GHZ
* A rate:
* (rx_status->flag & RX_FLAG_HT) = 0,
* DESC92C_RATE6M-->DESC92C_RATE54M ==> idx is 0-->7,
*
* N rate:
* (rx_status->flag & RX_FLAG_HT) = 1,
* DESC92C_RATEMCS0-->DESC92C_RATEMCS15 ==> idx is 0-->15
*/
static int _rtl92ee_rate_mapping(struct ieee80211_hw *hw,
bool isht, u8 desc_rate)
{
int rate_idx;
if (!isht) {
if (IEEE80211_BAND_2GHZ == hw->conf.chandef.chan->band) {
switch (desc_rate) {
case DESC92C_RATE1M:
rate_idx = 0;
break;
case DESC92C_RATE2M:
rate_idx = 1;
break;
case DESC92C_RATE5_5M:
rate_idx = 2;
break;
case DESC92C_RATE11M:
rate_idx = 3;
break;
case DESC92C_RATE6M:
rate_idx = 4;
break;
case DESC92C_RATE9M:
rate_idx = 5;
break;
case DESC92C_RATE12M:
rate_idx = 6;
break;
case DESC92C_RATE18M:
rate_idx = 7;
break;
case DESC92C_RATE24M:
rate_idx = 8;
break;
case DESC92C_RATE36M:
rate_idx = 9;
break;
case DESC92C_RATE48M:
rate_idx = 10;
break;
case DESC92C_RATE54M:
rate_idx = 11;
break;
default:
rate_idx = 0;
break;
}
} else {
switch (desc_rate) {
case DESC92C_RATE6M:
rate_idx = 0;
break;
case DESC92C_RATE9M:
rate_idx = 1;
break;
case DESC92C_RATE12M:
rate_idx = 2;
break;
case DESC92C_RATE18M:
rate_idx = 3;
break;
case DESC92C_RATE24M:
rate_idx = 4;
break;
case DESC92C_RATE36M:
rate_idx = 5;
break;
case DESC92C_RATE48M:
rate_idx = 6;
break;
case DESC92C_RATE54M:
rate_idx = 7;
break;
default:
rate_idx = 0;
break;
}
}
} else {
switch (desc_rate) {
case DESC92C_RATEMCS0:
rate_idx = 0;
break;
case DESC92C_RATEMCS1:
rate_idx = 1;
break;
case DESC92C_RATEMCS2:
rate_idx = 2;
break;
case DESC92C_RATEMCS3:
rate_idx = 3;
break;
case DESC92C_RATEMCS4:
rate_idx = 4;
break;
case DESC92C_RATEMCS5:
rate_idx = 5;
break;
case DESC92C_RATEMCS6:
rate_idx = 6;
break;
case DESC92C_RATEMCS7:
rate_idx = 7;
break;
case DESC92C_RATEMCS8:
rate_idx = 8;
break;
case DESC92C_RATEMCS9:
rate_idx = 9;
break;
case DESC92C_RATEMCS10:
rate_idx = 10;
break;
case DESC92C_RATEMCS11:
rate_idx = 11;
break;
case DESC92C_RATEMCS12:
rate_idx = 12;
break;
case DESC92C_RATEMCS13:
rate_idx = 13;
break;
case DESC92C_RATEMCS14:
rate_idx = 14;
break;
case DESC92C_RATEMCS15:
rate_idx = 15;
break;
default:
rate_idx = 0;
break;
}
}
return rate_idx;
}
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 >= DESC92C_RATEMCS8 &&
pstatus->rate <= DESC92C_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);
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 = _rtl92ee_rate_mapping(hw,
status->is_ht,
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;
if ((last_read_point > (RX_DESC_NUM_92E / 2)) &&
(read_point <= (RX_DESC_NUM_92E / 2))) {
remind_cnt = RX_DESC_NUM_92E - write_point;
} else {
remind_cnt = (read_point >= write_point) ?
(read_point - write_point) :
(RX_DESC_NUM_92E - write_point + read_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;
}
void 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 = ((current_tx_read_point > current_tx_write_point) ?
(current_tx_read_point - current_tx_write_point) :
(TX_DESC_NUM_92E - current_tx_write_point +
current_tx_read_point));
rtlpci->tx_ring[q_idx].avl_desc = 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, DESC92C_RATE11M);
} else {
ptcb_desc->use_driver_rate = false;
}
}
if (ptcb_desc->hw_rate > DESC92C_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 <= DESC92C_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, DESC92C_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];
/*checking Read/Write Point each interrupt wastes CPU */
if (stop_report_cnt > 15 || !rtlpriv->link_info.busytraffic) {
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;
}
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