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rtlwifi: rtl8192cu: Fix problem in connecting to WEP or WPA(1) networks

Browse Source 
Driver rtl8192cu can connect to WPA2 networks, but fails for any other
encryption method. The cause is a failure to set the rate control data
blocks. These changes fix https://bugzilla.redhat.com/show_bug.cgi?id=952793
and https://bugzilla.redhat.com/show_bug.cgi?id=761525.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Larry Finger 2013-05-30 18:05:55 -05:00 committed by John W. Linville
parent f873ded213
commit 5b8df24e22
7 changed files with 138 additions and 40 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

132
drivers/net/wireless/rtlwifi/rtl8192cu/hw.c
View File

@ -1973,26 +1973,35 @@ void rtl92cu_set_hw_reg(struct ieee80211_hw *hw, u8 variable, u8 *val)
}
}
void rtl92cu_update_hal_rate_table(struct ieee80211_hw *hw,
struct ieee80211_sta *sta,
u8 rssi_level)
static void rtl92cu_update_hal_rate_table(struct ieee80211_hw *hw,
struct ieee80211_sta *sta)
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
struct rtl_phy *rtlphy = &(rtlpriv->phy);
struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
u32 ratr_value = (u32) mac->basic_rates;
u8 *mcsrate = mac->mcs;
struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
u32 ratr_value;
u8 ratr_index = 0;
u8 nmode = mac->ht_enable;
u8 mimo_ps = 1;
u16 shortgi_rate = 0;
u32 tmp_ratr_value = 0;
u8 mimo_ps = IEEE80211_SMPS_OFF;
u16 shortgi_rate;
u32 tmp_ratr_value;
u8 curtxbw_40mhz = mac->bw_40;
u8 curshortgi_40mhz = mac->sgi_40;
u8 curshortgi_20mhz = mac->sgi_20;
u8 curshortgi_40mhz = (sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40) ?
1 : 0;
u8 curshortgi_20mhz = (sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20) ?
1 : 0;
enum wireless_mode wirelessmode = mac->mode;
ratr_value |= ((*(u16 *) (mcsrate))) << 12;
if (rtlhal->current_bandtype == BAND_ON_5G)
ratr_value = sta->supp_rates[1] << 4;
else
ratr_value = sta->supp_rates[0];
if (mac->opmode == NL80211_IFTYPE_ADHOC)
ratr_value = 0xfff;
ratr_value |= (sta->ht_cap.mcs.rx_mask[1] << 20 |
sta->ht_cap.mcs.rx_mask[0] << 12);
switch (wirelessmode) {
case WIRELESS_MODE_B:
if (ratr_value & 0x0000000c)
@ -2006,7 +2015,7 @@ void rtl92cu_update_hal_rate_table(struct ieee80211_hw *hw,
case WIRELESS_MODE_N_24G:
case WIRELESS_MODE_N_5G:
nmode = 1;
if (mimo_ps == 0) {
if (mimo_ps == IEEE80211_SMPS_STATIC) {
ratr_value &= 0x0007F005;
} else {
u32 ratr_mask;
@ -2016,8 +2025,7 @@ void rtl92cu_update_hal_rate_table(struct ieee80211_hw *hw,
ratr_mask = 0x000ff005;
else
ratr_mask = 0x0f0ff005;
if (curtxbw_40mhz)
ratr_mask |= 0x00000010;
ratr_value &= ratr_mask;
}
break;
@ -2026,41 +2034,74 @@ void rtl92cu_update_hal_rate_table(struct ieee80211_hw *hw,
ratr_value &= 0x000ff0ff;
else
ratr_value &= 0x0f0ff0ff;
break;
}
ratr_value &= 0x0FFFFFFF;
if (nmode && ((curtxbw_40mhz && curshortgi_40mhz) ||
(!curtxbw_40mhz && curshortgi_20mhz))) {
if (nmode && ((curtxbw_40mhz &&
curshortgi_40mhz) || (!curtxbw_40mhz &&
curshortgi_20mhz))) {
ratr_value |= 0x10000000;
tmp_ratr_value = (ratr_value >> 12);
for (shortgi_rate = 15; shortgi_rate > 0; shortgi_rate--) {
if ((1 << shortgi_rate) & tmp_ratr_value)
break;
}
shortgi_rate = (shortgi_rate << 12) | (shortgi_rate << 8) |
(shortgi_rate << 4) | (shortgi_rate);
(shortgi_rate << 4) | (shortgi_rate);
}
rtl_write_dword(rtlpriv, REG_ARFR0 + ratr_index * 4, ratr_value);
RT_TRACE(rtlpriv, COMP_RATR, DBG_DMESG, "%x\n",
rtl_read_dword(rtlpriv, REG_ARFR0));
}
void rtl92cu_update_hal_rate_mask(struct ieee80211_hw *hw, u8 rssi_level)
static void rtl92cu_update_hal_rate_mask(struct ieee80211_hw *hw,
struct ieee80211_sta *sta,
u8 rssi_level)
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
struct rtl_phy *rtlphy = &(rtlpriv->phy);
struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
u32 ratr_bitmap = (u32) mac->basic_rates;
u8 *p_mcsrate = mac->mcs;
u8 ratr_index = 0;
u8 curtxbw_40mhz = mac->bw_40;
u8 curshortgi_40mhz = mac->sgi_40;
u8 curshortgi_20mhz = mac->sgi_20;
enum wireless_mode wirelessmode = mac->mode;
struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
struct rtl_sta_info *sta_entry = NULL;
u32 ratr_bitmap;
u8 ratr_index;
u8 curtxbw_40mhz = (sta->bandwidth >= IEEE80211_STA_RX_BW_40) ? 1 : 0;
u8 curshortgi_40mhz = curtxbw_40mhz &&
(sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40) ?
1 : 0;
u8 curshortgi_20mhz = (sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20) ?
1 : 0;
enum wireless_mode wirelessmode = 0;
bool shortgi = false;
u8 rate_mask[5];
u8 macid = 0;
u8 mimops = 1;
u8 mimo_ps = IEEE80211_SMPS_OFF;
ratr_bitmap |= (p_mcsrate[1] << 20) | (p_mcsrate[0] << 12);
sta_entry = (struct rtl_sta_info *) sta->drv_priv;
wirelessmode = sta_entry->wireless_mode;
if (mac->opmode == NL80211_IFTYPE_STATION ||
mac->opmode == NL80211_IFTYPE_MESH_POINT)
curtxbw_40mhz = mac->bw_40;
else if (mac->opmode == NL80211_IFTYPE_AP ||
mac->opmode == NL80211_IFTYPE_ADHOC)
macid = sta->aid + 1;
if (rtlhal->current_bandtype == BAND_ON_5G)
ratr_bitmap = sta->supp_rates[1] << 4;
else
ratr_bitmap = sta->supp_rates[0];
if (mac->opmode == NL80211_IFTYPE_ADHOC)
ratr_bitmap = 0xfff;
ratr_bitmap |= (sta->ht_cap.mcs.rx_mask[1] << 20 |
sta->ht_cap.mcs.rx_mask[0] << 12);
switch (wirelessmode) {
case WIRELESS_MODE_B:
ratr_index = RATR_INX_WIRELESS_B;
@ -2071,6 +2112,7 @@ void rtl92cu_update_hal_rate_mask(struct ieee80211_hw *hw, u8 rssi_level)
break;
case WIRELESS_MODE_G:
ratr_index = RATR_INX_WIRELESS_GB;
if (rssi_level == 1)
ratr_bitmap &= 0x00000f00;
else if (rssi_level == 2)
@ -2085,7 +2127,8 @@ void rtl92cu_update_hal_rate_mask(struct ieee80211_hw *hw, u8 rssi_level)
case WIRELESS_MODE_N_24G:
case WIRELESS_MODE_N_5G:
ratr_index = RATR_INX_WIRELESS_NGB;
if (mimops == 0) {
if (mimo_ps == IEEE80211_SMPS_STATIC) {
if (rssi_level == 1)
ratr_bitmap &= 0x00070000;
else if (rssi_level == 2)
@ -2128,8 +2171,10 @@ void rtl92cu_update_hal_rate_mask(struct ieee80211_hw *hw, u8 rssi_level)
}
}
}
if ((curtxbw_40mhz && curshortgi_40mhz) ||
(!curtxbw_40mhz && curshortgi_20mhz)) {
if (macid == 0)
shortgi = true;
else if (macid == 1)
@ -2138,21 +2183,42 @@ void rtl92cu_update_hal_rate_mask(struct ieee80211_hw *hw, u8 rssi_level)
break;
default:
ratr_index = RATR_INX_WIRELESS_NGB;
if (rtlphy->rf_type == RF_1T2R)
ratr_bitmap &= 0x000ff0ff;
else
ratr_bitmap &= 0x0f0ff0ff;
break;
}
RT_TRACE(rtlpriv, COMP_RATR, DBG_DMESG, "ratr_bitmap :%x\n",
ratr_bitmap);
*(u32 *)&rate_mask = ((ratr_bitmap & 0x0fffffff) |
ratr_index << 28);
sta_entry->ratr_index = ratr_index;
RT_TRACE(rtlpriv, COMP_RATR, DBG_DMESG,
"ratr_bitmap :%x\n", ratr_bitmap);
*(u32 *)&rate_mask = (ratr_bitmap & 0x0fffffff) |
(ratr_index << 28);
rate_mask[4] = macid | (shortgi ? 0x20 : 0x00) | 0x80;
RT_TRACE(rtlpriv, COMP_RATR, DBG_DMESG,
"Rate_index:%x, ratr_val:%x, %5phC\n",
ratr_index, ratr_bitmap, rate_mask);
rtl92c_fill_h2c_cmd(hw, H2C_RA_MASK, 5, rate_mask);
memcpy(rtlpriv->rate_mask, rate_mask, 5);
/* rtl92c_fill_h2c_cmd() does USB I/O and will result in a
* "scheduled while atomic" if called directly */
schedule_work(&rtlpriv->works.fill_h2c_cmd);
if (macid != 0)
sta_entry->ratr_index = ratr_index;
}
void rtl92cu_update_hal_rate_tbl(struct ieee80211_hw *hw,
struct ieee80211_sta *sta,
u8 rssi_level)
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
if (rtlpriv->dm.useramask)
rtl92cu_update_hal_rate_mask(hw, sta, rssi_level);
else
rtl92cu_update_hal_rate_table(hw, sta);
}
void rtl92cu_update_channel_access_setting(struct ieee80211_hw *hw)

4
drivers/net/wireless/rtlwifi/rtl8192cu/hw.h
View File

@ -98,10 +98,6 @@ void rtl92cu_update_interrupt_mask(struct ieee80211_hw *hw,
u32 add_msr, u32 rm_msr);
void rtl92cu_get_hw_reg(struct ieee80211_hw *hw, u8 variable, u8 *val);
void rtl92cu_set_hw_reg(struct ieee80211_hw *hw, u8 variable, u8 *val);
void rtl92cu_update_hal_rate_table(struct ieee80211_hw *hw,
struct ieee80211_sta *sta,
u8 rssi_level);
void rtl92cu_update_hal_rate_mask(struct ieee80211_hw *hw, u8 rssi_level);
void rtl92cu_update_channel_access_setting(struct ieee80211_hw *hw);
bool rtl92cu_gpio_radio_on_off_checking(struct ieee80211_hw *hw, u8 * valid);

18
drivers/net/wireless/rtlwifi/rtl8192cu/mac.c
View File

@ -289,14 +289,30 @@ void rtl92c_set_key(struct ieee80211_hw *hw, u32 key_index,
macaddr = cam_const_broad;
entry_id = key_index;
} else {
if (mac->opmode == NL80211_IFTYPE_AP ||
mac->opmode == NL80211_IFTYPE_MESH_POINT) {
entry_id = rtl_cam_get_free_entry(hw,
p_macaddr);
if (entry_id >= TOTAL_CAM_ENTRY) {
RT_TRACE(rtlpriv, COMP_SEC,
DBG_EMERG,
"Can not find free hw security cam entry\n");
return;
}
} else {
entry_id = CAM_PAIRWISE_KEY_POSITION;
}
key_index = PAIRWISE_KEYIDX;
entry_id = CAM_PAIRWISE_KEY_POSITION;
is_pairwise = true;
}
}
if (rtlpriv->sec.key_len[key_index] == 0) {
RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
"delete one entry\n");
if (mac->opmode == NL80211_IFTYPE_AP ||
mac->opmode == NL80211_IFTYPE_MESH_POINT)
rtl_cam_del_entry(hw, p_macaddr);
rtl_cam_delete_one_entry(hw, p_macaddr, entry_id);
} else {
RT_TRACE(rtlpriv, COMP_SEC, DBG_LOUD,

4
drivers/net/wireless/rtlwifi/rtl8192cu/sw.c
View File

@ -106,8 +106,7 @@ static struct rtl_hal_ops rtl8192cu_hal_ops = {
.update_interrupt_mask = rtl92cu_update_interrupt_mask,
.get_hw_reg = rtl92cu_get_hw_reg,
.set_hw_reg = rtl92cu_set_hw_reg,
.update_rate_tbl = rtl92cu_update_hal_rate_table,
.update_rate_mask = rtl92cu_update_hal_rate_mask,
.update_rate_tbl = rtl92cu_update_hal_rate_tbl,
.fill_tx_desc = rtl92cu_tx_fill_desc,
.fill_fake_txdesc = rtl92cu_fill_fake_txdesc,
.fill_tx_cmddesc = rtl92cu_tx_fill_cmddesc,
@ -137,6 +136,7 @@ static struct rtl_hal_ops rtl8192cu_hal_ops = {
.phy_lc_calibrate = _rtl92cu_phy_lc_calibrate,
.phy_set_bw_mode_callback = rtl92cu_phy_set_bw_mode_callback,
.dm_dynamic_txpower = rtl92cu_dm_dynamic_txpower,
.fill_h2c_cmd = rtl92c_fill_h2c_cmd,
};
static struct rtl_mod_params rtl92cu_mod_params = {

3
drivers/net/wireless/rtlwifi/rtl8192cu/sw.h
View File

@ -49,5 +49,8 @@ bool rtl92cu_phy_set_rf_power_state(struct ieee80211_hw *hw,
u32 rtl92cu_phy_query_rf_reg(struct ieee80211_hw *hw,
enum radio_path rfpath, u32 regaddr, u32 bitmask);
void rtl92cu_phy_set_bw_mode_callback(struct ieee80211_hw *hw);
void rtl92cu_update_hal_rate_tbl(struct ieee80211_hw *hw,
struct ieee80211_sta *sta,
u8 rssi_level);
#endif

13
drivers/net/wireless/rtlwifi/usb.c
View File

@ -824,6 +824,7 @@ static void rtl_usb_stop(struct ieee80211_hw *hw)
/* should after adapter start and interrupt enable. */
set_hal_stop(rtlhal);
cancel_work_sync(&rtlpriv->works.fill_h2c_cmd);
/* Enable software */
SET_USB_STOP(rtlusb);
rtl_usb_deinit(hw);
@ -1026,6 +1027,16 @@ static bool rtl_usb_tx_chk_waitq_insert(struct ieee80211_hw *hw,
return false;
}
static void rtl_fill_h2c_cmd_work_callback(struct work_struct *work)
{
struct rtl_works *rtlworks =
container_of(work, struct rtl_works, fill_h2c_cmd);
struct ieee80211_hw *hw = rtlworks->hw;
struct rtl_priv *rtlpriv = rtl_priv(hw);
rtlpriv->cfg->ops->fill_h2c_cmd(hw, H2C_RA_MASK, 5, rtlpriv->rate_mask);
}
static struct rtl_intf_ops rtl_usb_ops = {
.adapter_start = rtl_usb_start,
.adapter_stop = rtl_usb_stop,
@ -1057,6 +1068,8 @@ int rtl_usb_probe(struct usb_interface *intf,
/* this spin lock must be initialized early */
spin_lock_init(&rtlpriv->locks.usb_lock);
INIT_WORK(&rtlpriv->works.fill_h2c_cmd,
rtl_fill_h2c_cmd_work_callback);
rtlpriv->usb_data_index = 0;
init_completion(&rtlpriv->firmware_loading_complete);

4
drivers/net/wireless/rtlwifi/wifi.h
View File

@ -1736,6 +1736,8 @@ struct rtl_hal_ops {
void (*bt_wifi_media_status_notify) (struct ieee80211_hw *hw,
bool mstate);
void (*bt_coex_off_before_lps) (struct ieee80211_hw *hw);
void (*fill_h2c_cmd) (struct ieee80211_hw *hw, u8 element_id,
u32 cmd_len, u8 *p_cmdbuffer);
};
struct rtl_intf_ops {
@ -1869,6 +1871,7 @@ struct rtl_works {
struct delayed_work fwevt_wq;
struct work_struct lps_change_work;
struct work_struct fill_h2c_cmd;
};
struct rtl_debug {
@ -2048,6 +2051,7 @@ struct rtl_priv {
};
};
bool enter_ps; /* true when entering PS */
u8 rate_mask[5];
/*This must be the last item so
that it points to the data allocated