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linux-pinenote/drivers/net/wireless/rtlwifi/rtl8723be/trx.c
Larry Finger 3f08e47291 rtlwifi: Fix static checker warnings for various drivers 
Indenting errors yielded the following static checker warnings:

drivers/net/wireless/rtlwifi/rtl8192ee/hw.c:533 rtl92ee_set_hw_reg() warn: add curly braces? (if)
drivers/net/wireless/rtlwifi/rtl8192ee/hw.c:539 rtl92ee_set_hw_reg() warn: add curly braces? (if)

An unreleased version of the static checker also reported:

drivers/net/wireless/rtlwifi/rtl8723be/trx.c:550 rtl8723be_rx_query_desc() warn: 'hdr' can't be NULL.
drivers/net/wireless/rtlwifi/rtl8188ee/trx.c:621 rtl88ee_rx_query_desc() warn: 'hdr' can't be NULL.
drivers/net/wireless/rtlwifi/rtl8192ee/trx.c:567 rtl92ee_rx_query_desc() warn: 'hdr' can't be NULL.
drivers/net/wireless/rtlwifi/rtl8821ae/trx.c:758 rtl8821ae_rx_query_desc() warn: 'hdr' can't be NULL.
drivers/net/wireless/rtlwifi/rtl8723ae/trx.c:494 rtl8723e_rx_query_desc() warn: 'hdr' can't be NULL.
drivers/net/wireless/rtlwifi/rtl8192se/trx.c:315 rtl92se_rx_query_desc() warn: 'hdr' can't be NULL.
drivers/net/wireless/rtlwifi/rtl8192ce/trx.c:392 rtl92ce_rx_query_desc() warn: 'hdr' can't be NULL.

All of these are fixed.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-10-02 14:26:32 -04:00

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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 _rtl8723be_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 _rtl8723be_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 _rtl8723be_query_rxphystatus(struct ieee80211_hw *hw,
struct rtl_stats *pstatus, u8 *pdesc,
struct rx_fwinfo_8723be *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, pwdb_all_bt = 0;
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_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) {
/* 46 53 73 95 201301231630 */
/* 46 53 77 99 201301241630 */
case 6:
rx_pwr_all = -34 - (2 * vga_idx);
break;
case 4:
rx_pwr_all = -14 - (2 * vga_idx);
break;
case 1:
rx_pwr_all = 6 - (2 * vga_idx);
break;
case 0:
rx_pwr_all = 16 - (2 * vga_idx);
break;
default:
break;
}
pwdb_all = rtl_query_rxpwrpercentage(rx_pwr_all);
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);
pwdb_all_bt = pwdb_all;
pstatus->rx_pwdb_all = pwdb_all;
pstatus->bt_rx_rssi_percentage = pwdb_all_bt;
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 _rtl8723be_translate_rx_signal_stuff(struct ieee80211_hw *hw,
struct sk_buff *skb,
struct rtl_stats *pstatus,
u8 *pdesc,
struct rx_fwinfo_8723be *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;
u16 fc, type;
bool packet_matchbssid, packet_toself, packet_beacon;
tmp_buf = skb->data + pstatus->rx_drvinfo_size + pstatus->rx_bufshift;
hdr = (struct ieee80211_hdr *)tmp_buf;
fc = le16_to_cpu(hdr->frame_control);
type = WLAN_FC_GET_TYPE(hdr->frame_control);
praddr = hdr->addr1;
psaddr = ieee80211_get_SA(hdr);
memcpy(pstatus->psaddr, psaddr, ETH_ALEN);
packet_matchbssid = ((IEEE80211_FTYPE_CTL != type) &&
(ether_addr_equal(mac->bssid, (fc & IEEE80211_FCTL_TODS) ?
hdr->addr1 : (fc & IEEE80211_FCTL_FROMDS) ?
hdr->addr2 : hdr->addr3)) &&
(!pstatus->hwerror) &&
(!pstatus->crc) && (!pstatus->icv));
packet_toself = packet_matchbssid &&
(ether_addr_equal(praddr, rtlefuse->dev_addr));
/* YP: packet_beacon is not initialized,
* this assignment is neccesary,
* otherwise it counld be true in this case
* the situation is much worse in Kernel 3.10
*/
if (ieee80211_is_beacon(hdr->frame_control))
packet_beacon = true;
else
packet_beacon = false;
if (packet_beacon && packet_matchbssid)
rtl_priv(hw)->dm.dbginfo.num_qry_beacon_pkt++;
_rtl8723be_query_rxphystatus(hw, pstatus, pdesc, p_drvinfo,
packet_matchbssid,
packet_toself,
packet_beacon);
rtl_process_phyinfo(hw, tmp_buf, pstatus);
}
static void _rtl8723be_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 rtl8723be_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_8723be *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->shortpreamble = (u16)GET_RX_DESC_SPLCP(pdesc);
status->isampdu = (bool)(GET_RX_DESC_PAGGR(pdesc) == 1);
status->isfirst_ampdu = (bool)(GET_RX_DESC_PAGGR(pdesc) == 1);
status->timestamp_low = GET_RX_DESC_TSFL(pdesc);
status->rx_is40Mhzpacket = (bool)GET_RX_DESC_BW(pdesc);
status->bandwidth = (u8)GET_RX_DESC_BW(pdesc);
status->macid = GET_RX_DESC_MACID(pdesc);
status->is_ht = (bool)GET_RX_DESC_RXHT(pdesc);
status->is_cck = RX_HAL_IS_CCK_RATE(status->rate);
if (GET_RX_STATUS_DESC_RPT_SEL(pdesc))
status->packet_report_type = C2H_PACKET;
else
status->packet_report_type = NORMAL_RX;
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);
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)
*/
rx_status->rate_idx = _rtl8723be_rate_mapping(hw, status->is_ht,
status->rate);
rx_status->mactime = status->timestamp_low;
if (phystatus) {
p_drvinfo = (struct rx_fwinfo_8723be *)(skb->data +
status->rx_bufshift);
_rtl8723be_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;
}
void rtl8723be_tx_fill_desc(struct ieee80211_hw *hw,
struct ieee80211_hdr *hdr, u8 *pdesc_tx,
u8 *txbd, 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;
unsigned int skb_len = skb->len;
u8 fw_qsel = _rtl8723be_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;
}
CLEAR_PCI_TX_DESC_CONTENT(pdesc, sizeof(struct tx_desc_8723be));
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);
_rtl8723be_insert_emcontent(ptcb_desc,
(u8 *)(skb->data));
}
} else {
SET_TX_DESC_OFFSET(pdesc, USB_HWDESC_HEADER_LEN);
}
/* ptcb_desc->use_driver_rate = true; */
SET_TX_DESC_TX_RATE(pdesc, ptcb_desc->hw_rate);
if (ptcb_desc->hw_rate > DESC92C_RATEMCS0)
short_gi = (ptcb_desc->use_shortgi) ? 1 : 0;
else
short_gi = (ptcb_desc->use_shortpreamble) ? 1 : 0;
SET_TX_DESC_DATA_SHORTGI(pdesc, short_gi);
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);
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_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 (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) { */
if (1) {
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->mac_id);
}
if (!ieee80211_is_data_qos(fc)) {
SET_TX_DESC_HWSEQ_EN(pdesc, 1);
SET_TX_DESC_HWSEQ_SEL(pdesc, 0);
}
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 rtl8723be_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);
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);
SET_TX_DESC_OFFSET(pdesc, USB_HWDESC_HEADER_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, 0);
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_USE_RATE(pdesc, 1);
RT_PRINT_DATA(rtlpriv, COMP_CMD, DBG_LOUD,
"H2C Tx Cmd Content\n", pdesc, TX_DESC_SIZE);
}
void rtl8723be_set_desc(struct ieee80211_hw *hw, u8 *pdesc,
bool istx, u8 desc_name, u8 *val)
{
if (istx) {
switch (desc_name) {
case HW_DESC_OWN:
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:
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 rtl8723be_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_TX_DESC_TX_BUFFER_ADDRESS(pdesc);
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 rtl8723be_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)rtl8723be_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 rtl8723be_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));
}
}
u32 rtl8723be_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:
rtl8723be_c2h_packet_handler(hw, skb->data,
(u8)skb->len);
result = 1;
break;
default:
RT_TRACE(rtlpriv, COMP_RECV, DBG_TRACE,
"No this packet type!!\n");
break;
}
return result;
}
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