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linux/drivers/net/wireless/rtlwifi/core.c
Johannes Berg 0b01f030d3 mac80211: track receiver's aggregation reorder buffer size 
The aggregation code currently doesn't implement the
buffer size negotiation. It will always request a max
buffer size (which is fine, if a little pointless, as
the mac80211 code doesn't know and might just use 0
instead), but if the peer requests a smaller size it
isn't possible to honour this request.

In order to fix this, look at the buffer size in the
addBA response frame, keep track of it and pass it to
the driver in the ampdu_action callback when called
with the IEEE80211_AMPDU_TX_OPERATIONAL action. That
way the driver can limit the number of subframes in
aggregates appropriately.

Note that this doesn't fix any drivers apart from the
addition of the new argument -- they all need to be
updated separately to use this variable!

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-01-19 11:36:11 -05:00

1031 lines
28 KiB
C
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/******************************************************************************
*
* Copyright(c) 2009-2010 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 "core.h"
#include "cam.h"
#include "base.h"
#include "ps.h"
/*mutex for start & stop is must here. */
static int rtl_op_start(struct ieee80211_hw *hw)
{
int err = 0;
struct rtl_priv *rtlpriv = rtl_priv(hw);
struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
if (!is_hal_stop(rtlhal))
return 0;
if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
return 0;
mutex_lock(&rtlpriv->locks.conf_mutex);
err = rtlpriv->intf_ops->adapter_start(hw);
if (err)
goto out;
rtl_watch_dog_timer_callback((unsigned long)hw);
out:
mutex_unlock(&rtlpriv->locks.conf_mutex);
return err;
}
static void rtl_op_stop(struct ieee80211_hw *hw)
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
if (is_hal_stop(rtlhal))
return;
if (unlikely(ppsc->rfpwr_state == ERFOFF)) {
rtl_ips_nic_on(hw);
mdelay(1);
}
mutex_lock(&rtlpriv->locks.conf_mutex);
mac->link_state = MAC80211_NOLINK;
memset(mac->bssid, 0, 6);
/*reset sec info */
rtl_cam_reset_sec_info(hw);
rtl_deinit_deferred_work(hw);
rtlpriv->intf_ops->adapter_stop(hw);
mutex_unlock(&rtlpriv->locks.conf_mutex);
}
static int rtl_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
if (unlikely(is_hal_stop(rtlhal) || ppsc->rfpwr_state != ERFON))
goto err_free;
if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
goto err_free;
rtlpriv->intf_ops->adapter_tx(hw, skb);
return NETDEV_TX_OK;
err_free:
dev_kfree_skb_any(skb);
return NETDEV_TX_OK;
}
static int rtl_op_add_interface(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
int err = 0;
if (mac->vif) {
RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
("vif has been set!! mac->vif = 0x%p\n", mac->vif));
return -EOPNOTSUPP;
}
rtl_ips_nic_on(hw);
mutex_lock(&rtlpriv->locks.conf_mutex);
switch (vif->type) {
case NL80211_IFTYPE_STATION:
if (mac->beacon_enabled == 1) {
RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
("NL80211_IFTYPE_STATION\n"));
mac->beacon_enabled = 0;
rtlpriv->cfg->ops->update_interrupt_mask(hw, 0,
rtlpriv->cfg->maps
[RTL_IBSS_INT_MASKS]);
}
break;
case NL80211_IFTYPE_ADHOC:
RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
("NL80211_IFTYPE_ADHOC\n"));
mac->link_state = MAC80211_LINKED;
rtlpriv->cfg->ops->set_bcn_reg(hw);
break;
case NL80211_IFTYPE_AP:
RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
("NL80211_IFTYPE_AP\n"));
break;
default:
RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
("operation mode %d is not support!\n", vif->type));
err = -EOPNOTSUPP;
goto out;
}
mac->vif = vif;
mac->opmode = vif->type;
rtlpriv->cfg->ops->set_network_type(hw, vif->type);
memcpy(mac->mac_addr, vif->addr, ETH_ALEN);
rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_ETHER_ADDR, mac->mac_addr);
out:
mutex_unlock(&rtlpriv->locks.conf_mutex);
return err;
}
static void rtl_op_remove_interface(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
mutex_lock(&rtlpriv->locks.conf_mutex);
/* Free beacon resources */
if ((mac->opmode == NL80211_IFTYPE_AP) ||
(mac->opmode == NL80211_IFTYPE_ADHOC) ||
(mac->opmode == NL80211_IFTYPE_MESH_POINT)) {
if (mac->beacon_enabled == 1) {
mac->beacon_enabled = 0;
rtlpriv->cfg->ops->update_interrupt_mask(hw, 0,
rtlpriv->cfg->maps
[RTL_IBSS_INT_MASKS]);
}
}
/*
*Note: We assume NL80211_IFTYPE_UNSPECIFIED as
*NO LINK for our hardware.
*/
mac->vif = NULL;
mac->link_state = MAC80211_NOLINK;
memset(mac->bssid, 0, 6);
mac->opmode = NL80211_IFTYPE_UNSPECIFIED;
rtlpriv->cfg->ops->set_network_type(hw, mac->opmode);
mutex_unlock(&rtlpriv->locks.conf_mutex);
}
static int rtl_op_config(struct ieee80211_hw *hw, u32 changed)
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
struct rtl_phy *rtlphy = &(rtlpriv->phy);
struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
struct ieee80211_conf *conf = &hw->conf;
mutex_lock(&rtlpriv->locks.conf_mutex);
if (changed & IEEE80211_CONF_CHANGE_LISTEN_INTERVAL) { /*BIT(2)*/
RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
("IEEE80211_CONF_CHANGE_LISTEN_INTERVAL\n"));
}
/*For IPS */
if (changed & IEEE80211_CONF_CHANGE_IDLE) {
if (hw->conf.flags & IEEE80211_CONF_IDLE)
rtl_ips_nic_off(hw);
else
rtl_ips_nic_on(hw);
} else {
/*
*although rfoff may not cause by ips, but we will
*check the reason in set_rf_power_state function
*/
if (unlikely(ppsc->rfpwr_state == ERFOFF))
rtl_ips_nic_on(hw);
}
/*For LPS */
if (changed & IEEE80211_CONF_CHANGE_PS) {
if (conf->flags & IEEE80211_CONF_PS)
rtl_lps_enter(hw);
else
rtl_lps_leave(hw);
}
if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS) {
RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
("IEEE80211_CONF_CHANGE_RETRY_LIMITS %x\n",
hw->conf.long_frame_max_tx_count));
mac->retry_long = hw->conf.long_frame_max_tx_count;
mac->retry_short = hw->conf.long_frame_max_tx_count;
rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_RETRY_LIMIT,
(u8 *) (&hw->conf.
long_frame_max_tx_count));
}
if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
struct ieee80211_channel *channel = hw->conf.channel;
u8 wide_chan = (u8) channel->hw_value;
/*
*because we should back channel to
*current_network.chan in in scanning,
*So if set_chan == current_network.chan
*we should set it.
*because mac80211 tell us wrong bw40
*info for cisco1253 bw20, so we modify
*it here based on UPPER & LOWER
*/
switch (hw->conf.channel_type) {
case NL80211_CHAN_HT20:
case NL80211_CHAN_NO_HT:
/* SC */
mac->cur_40_prime_sc =
PRIME_CHNL_OFFSET_DONT_CARE;
rtlphy->current_chan_bw = HT_CHANNEL_WIDTH_20;
mac->bw_40 = false;
break;
case NL80211_CHAN_HT40MINUS:
/* SC */
mac->cur_40_prime_sc = PRIME_CHNL_OFFSET_UPPER;
rtlphy->current_chan_bw =
HT_CHANNEL_WIDTH_20_40;
mac->bw_40 = true;
/*wide channel */
wide_chan -= 2;
break;
case NL80211_CHAN_HT40PLUS:
/* SC */
mac->cur_40_prime_sc = PRIME_CHNL_OFFSET_LOWER;
rtlphy->current_chan_bw =
HT_CHANNEL_WIDTH_20_40;
mac->bw_40 = true;
/*wide channel */
wide_chan += 2;
break;
default:
mac->bw_40 = false;
RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
("switch case not processed\n"));
break;
}
if (wide_chan <= 0)
wide_chan = 1;
rtlphy->current_channel = wide_chan;
rtlpriv->cfg->ops->set_channel_access(hw);
rtlpriv->cfg->ops->switch_channel(hw);
rtlpriv->cfg->ops->set_bw_mode(hw,
hw->conf.channel_type);
}
mutex_unlock(&rtlpriv->locks.conf_mutex);
return 0;
}
static void rtl_op_configure_filter(struct ieee80211_hw *hw,
unsigned int changed_flags,
unsigned int *new_flags, u64 multicast)
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
*new_flags &= RTL_SUPPORTED_FILTERS;
if (!changed_flags)
return;
/*TODO: we disable broadcase now, so enable here */
if (changed_flags & FIF_ALLMULTI) {
if (*new_flags & FIF_ALLMULTI) {
mac->rx_conf |= rtlpriv->cfg->maps[MAC_RCR_AM] |
rtlpriv->cfg->maps[MAC_RCR_AB];
RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
("Enable receive multicast frame.\n"));
} else {
mac->rx_conf &= ~(rtlpriv->cfg->maps[MAC_RCR_AM] |
rtlpriv->cfg->maps[MAC_RCR_AB]);
RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
("Disable receive multicast frame.\n"));
}
}
if (changed_flags & FIF_FCSFAIL) {
if (*new_flags & FIF_FCSFAIL) {
mac->rx_conf |= rtlpriv->cfg->maps[MAC_RCR_ACRC32];
RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
("Enable receive FCS error frame.\n"));
} else {
mac->rx_conf &= ~rtlpriv->cfg->maps[MAC_RCR_ACRC32];
RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
("Disable receive FCS error frame.\n"));
}
}
if (changed_flags & FIF_BCN_PRBRESP_PROMISC) {
/*
*TODO: BIT(5) is probe response BIT(8) is beacon
*TODO: Use define for BIT(5) and BIT(8)
*/
if (*new_flags & FIF_BCN_PRBRESP_PROMISC)
mac->rx_mgt_filter |= (BIT(5) | BIT(8));
else
mac->rx_mgt_filter &= ~(BIT(5) | BIT(8));
}
if (changed_flags & FIF_CONTROL) {
if (*new_flags & FIF_CONTROL) {
mac->rx_conf |= rtlpriv->cfg->maps[MAC_RCR_ACF];
mac->rx_ctrl_filter |= RTL_SUPPORTED_CTRL_FILTER;
RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
("Enable receive control frame.\n"));
} else {
mac->rx_conf &= ~rtlpriv->cfg->maps[MAC_RCR_ACF];
mac->rx_ctrl_filter &= ~RTL_SUPPORTED_CTRL_FILTER;
RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
("Disable receive control frame.\n"));
}
}
if (changed_flags & FIF_OTHER_BSS) {
if (*new_flags & FIF_OTHER_BSS) {
mac->rx_conf |= rtlpriv->cfg->maps[MAC_RCR_AAP];
RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
("Enable receive other BSS's frame.\n"));
} else {
mac->rx_conf &= ~rtlpriv->cfg->maps[MAC_RCR_AAP];
RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
("Disable receive other BSS's frame.\n"));
}
}
rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_RCR, (u8 *) (&mac->rx_conf));
rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_MGT_FILTER,
(u8 *) (&mac->rx_mgt_filter));
rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_CTRL_FILTER,
(u8 *) (&mac->rx_ctrl_filter));
}
static int _rtl_get_hal_qnum(u16 queue)
{
int qnum;
switch (queue) {
case 0:
qnum = AC3_VO;
break;
case 1:
qnum = AC2_VI;
break;
case 2:
qnum = AC0_BE;
break;
case 3:
qnum = AC1_BK;
break;
default:
qnum = AC0_BE;
break;
}
return qnum;
}
/*
*for mac80211 VO=0, VI=1, BE=2, BK=3
*for rtl819x BE=0, BK=1, VI=2, VO=3
*/
static int rtl_op_conf_tx(struct ieee80211_hw *hw, u16 queue,
const struct ieee80211_tx_queue_params *param)
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
int aci;
if (queue >= AC_MAX) {
RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
("queue number %d is incorrect!\n", queue));
return -EINVAL;
}
aci = _rtl_get_hal_qnum(queue);
mac->ac[aci].aifs = param->aifs;
mac->ac[aci].cw_min = param->cw_min;
mac->ac[aci].cw_max = param->cw_max;
mac->ac[aci].tx_op = param->txop;
memcpy(&mac->edca_param[aci], param, sizeof(*param));
rtlpriv->cfg->ops->set_qos(hw, aci);
return 0;
}
static void rtl_op_bss_info_changed(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_bss_conf *bss_conf, u32 changed)
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
mutex_lock(&rtlpriv->locks.conf_mutex);
if ((vif->type == NL80211_IFTYPE_ADHOC) ||
(vif->type == NL80211_IFTYPE_AP) ||
(vif->type == NL80211_IFTYPE_MESH_POINT)) {
if ((changed & BSS_CHANGED_BEACON) ||
(changed & BSS_CHANGED_BEACON_ENABLED &&
bss_conf->enable_beacon)) {
if (mac->beacon_enabled == 0) {
RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
("BSS_CHANGED_BEACON_ENABLED\n"));
/*start hw beacon interrupt. */
/*rtlpriv->cfg->ops->set_bcn_reg(hw); */
mac->beacon_enabled = 1;
rtlpriv->cfg->ops->update_interrupt_mask(hw,
rtlpriv->cfg->maps
[RTL_IBSS_INT_MASKS],
0);
}
} else {
if (mac->beacon_enabled == 1) {
RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
("ADHOC DISABLE BEACON\n"));
mac->beacon_enabled = 0;
rtlpriv->cfg->ops->update_interrupt_mask(hw, 0,
rtlpriv->cfg->maps
[RTL_IBSS_INT_MASKS]);
}
}
if (changed & BSS_CHANGED_BEACON_INT) {
RT_TRACE(rtlpriv, COMP_BEACON, DBG_TRACE,
("BSS_CHANGED_BEACON_INT\n"));
mac->beacon_interval = bss_conf->beacon_int;
rtlpriv->cfg->ops->set_bcn_intv(hw);
}
}
/*TODO: reference to enum ieee80211_bss_change */
if (changed & BSS_CHANGED_ASSOC) {
if (bss_conf->assoc) {
mac->link_state = MAC80211_LINKED;
mac->cnt_after_linked = 0;
mac->assoc_id = bss_conf->aid;
memcpy(mac->bssid, bss_conf->bssid, 6);
RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
("BSS_CHANGED_ASSOC\n"));
} else {
if (mac->link_state == MAC80211_LINKED)
rtl_lps_leave(hw);
mac->link_state = MAC80211_NOLINK;
memset(mac->bssid, 0, 6);
/* reset sec info */
rtl_cam_reset_sec_info(hw);
RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
("BSS_CHANGED_UN_ASSOC\n"));
}
}
if (changed & BSS_CHANGED_ERP_CTS_PROT) {
RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
("BSS_CHANGED_ERP_CTS_PROT\n"));
mac->use_cts_protect = bss_conf->use_cts_prot;
}
if (changed & BSS_CHANGED_ERP_PREAMBLE) {
RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
("BSS_CHANGED_ERP_PREAMBLE use short preamble:%x\n",
bss_conf->use_short_preamble));
mac->short_preamble = bss_conf->use_short_preamble;
rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_ACK_PREAMBLE,
(u8 *) (&mac->short_preamble));
}
if (changed & BSS_CHANGED_ERP_SLOT) {
RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
("BSS_CHANGED_ERP_SLOT\n"));
if (bss_conf->use_short_slot)
mac->slot_time = RTL_SLOT_TIME_9;
else
mac->slot_time = RTL_SLOT_TIME_20;
rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_SLOT_TIME,
(u8 *) (&mac->slot_time));
}
if (changed & BSS_CHANGED_HT) {
struct ieee80211_sta *sta = NULL;
RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
("BSS_CHANGED_HT\n"));
sta = ieee80211_find_sta(mac->vif, mac->bssid);
if (sta) {
if (sta->ht_cap.ampdu_density >
mac->current_ampdu_density)
mac->current_ampdu_density =
sta->ht_cap.ampdu_density;
if (sta->ht_cap.ampdu_factor <
mac->current_ampdu_factor)
mac->current_ampdu_factor =
sta->ht_cap.ampdu_factor;
}
rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_SHORTGI_DENSITY,
(u8 *) (&mac->max_mss_density));
rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_AMPDU_FACTOR,
&mac->current_ampdu_factor);
rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_AMPDU_MIN_SPACE,
&mac->current_ampdu_density);
}
if (changed & BSS_CHANGED_BSSID) {
struct ieee80211_sta *sta = NULL;
u32 basic_rates;
u8 i;
rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_BSSID,
(u8 *) bss_conf->bssid);
RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
(MAC_FMT "\n", MAC_ARG(bss_conf->bssid)));
memcpy(mac->bssid, bss_conf->bssid, 6);
if (is_valid_ether_addr(bss_conf->bssid)) {
switch (vif->type) {
case NL80211_IFTYPE_UNSPECIFIED:
break;
case NL80211_IFTYPE_ADHOC:
break;
case NL80211_IFTYPE_STATION:
break;
case NL80211_IFTYPE_AP:
break;
default:
RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
("switch case not process\n"));
break;
}
rtlpriv->cfg->ops->set_network_type(hw, vif->type);
} else
rtlpriv->cfg->ops->set_network_type(hw,
NL80211_IFTYPE_UNSPECIFIED);
memset(mac->mcs, 0, 16);
mac->ht_enable = false;
mac->sgi_40 = false;
mac->sgi_20 = false;
if (!bss_conf->use_short_slot)
mac->mode = WIRELESS_MODE_B;
else
mac->mode = WIRELESS_MODE_G;
sta = ieee80211_find_sta(mac->vif, mac->bssid);
if (sta) {
if (sta->ht_cap.ht_supported) {
mac->mode = WIRELESS_MODE_N_24G;
mac->ht_enable = true;
}
if (mac->ht_enable) {
u16 ht_cap = sta->ht_cap.cap;
memcpy(mac->mcs, (u8 *) (&sta->ht_cap.mcs), 16);
for (i = 0; i < 16; i++)
RT_TRACE(rtlpriv, COMP_MAC80211,
DBG_LOUD, ("%x ",
mac->mcs[i]));
RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
("\n"));
if (ht_cap & IEEE80211_HT_CAP_SGI_40)
mac->sgi_40 = true;
if (ht_cap & IEEE80211_HT_CAP_SGI_20)
mac->sgi_20 = true;
/*
* for cisco 1252 bw20 it's wrong
* if (ht_cap &
* IEEE80211_HT_CAP_SUP_WIDTH_20_40) {
* mac->bw_40 = true;
* }
*/
}
}
/*mac80211 just give us CCK rates any time
*So we add G rate in basic rates when
not in B mode*/
if (changed & BSS_CHANGED_BASIC_RATES) {
if (mac->mode == WIRELESS_MODE_B)
basic_rates = bss_conf->basic_rates | 0x00f;
else
basic_rates = bss_conf->basic_rates | 0xff0;
if (!vif)
goto out;
mac->basic_rates = basic_rates;
rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_BASIC_RATE,
(u8 *) (&basic_rates));
if (rtlpriv->dm.b_useramask)
rtlpriv->cfg->ops->update_rate_mask(hw, 0);
else
rtlpriv->cfg->ops->update_rate_table(hw);
}
}
/*
* For FW LPS:
* To tell firmware we have connected
* to an AP. For 92SE/CE power save v2.
*/
if (changed & BSS_CHANGED_ASSOC) {
if (bss_conf->assoc) {
if (ppsc->b_fwctrl_lps) {
u8 mstatus = RT_MEDIA_CONNECT;
rtlpriv->cfg->ops->set_hw_reg(hw,
HW_VAR_H2C_FW_JOINBSSRPT,
(u8 *) (&mstatus));
ppsc->report_linked = true;
}
} else {
if (ppsc->b_fwctrl_lps) {
u8 mstatus = RT_MEDIA_DISCONNECT;
rtlpriv->cfg->ops->set_hw_reg(hw,
HW_VAR_H2C_FW_JOINBSSRPT,
(u8 *)(&mstatus));
ppsc->report_linked = false;
}
}
}
out:
mutex_unlock(&rtlpriv->locks.conf_mutex);
}
static u64 rtl_op_get_tsf(struct ieee80211_hw *hw)
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
u64 tsf;
rtlpriv->cfg->ops->get_hw_reg(hw, HW_VAR_CORRECT_TSF, (u8 *) (&tsf));
return tsf;
}
static void rtl_op_set_tsf(struct ieee80211_hw *hw, u64 tsf)
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
u8 bibss = (mac->opmode == NL80211_IFTYPE_ADHOC) ? 1 : 0;;
mac->tsf = tsf;
rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_CORRECT_TSF, (u8 *) (&bibss));
}
static void rtl_op_reset_tsf(struct ieee80211_hw *hw)
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
u8 tmp = 0;
rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_DUAL_TSF_RST, (u8 *) (&tmp));
}
static void rtl_op_sta_notify(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
enum sta_notify_cmd cmd,
struct ieee80211_sta *sta)
{
switch (cmd) {
case STA_NOTIFY_SLEEP:
break;
case STA_NOTIFY_AWAKE:
break;
default:
break;
}
}
static int rtl_op_ampdu_action(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
enum ieee80211_ampdu_mlme_action action,
struct ieee80211_sta *sta, u16 tid, u16 *ssn,
u8 buf_size)
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
switch (action) {
case IEEE80211_AMPDU_TX_START:
RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
("IEEE80211_AMPDU_TX_START: TID:%d\n", tid));
return rtl_tx_agg_start(hw, sta->addr, tid, ssn);
break;
case IEEE80211_AMPDU_TX_STOP:
RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
("IEEE80211_AMPDU_TX_STOP: TID:%d\n", tid));
return rtl_tx_agg_stop(hw, sta->addr, tid);
break;
case IEEE80211_AMPDU_TX_OPERATIONAL:
RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
("IEEE80211_AMPDU_TX_OPERATIONAL:TID:%d\n", tid));
break;
case IEEE80211_AMPDU_RX_START:
RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
("IEEE80211_AMPDU_RX_START:TID:%d\n", tid));
break;
case IEEE80211_AMPDU_RX_STOP:
RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
("IEEE80211_AMPDU_RX_STOP:TID:%d\n", tid));
break;
default:
RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
("IEEE80211_AMPDU_ERR!!!!:\n"));
return -EOPNOTSUPP;
}
return 0;
}
static void rtl_op_sw_scan_start(struct ieee80211_hw *hw)
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
mac->act_scanning = true;
RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, ("\n"));
if (mac->link_state == MAC80211_LINKED) {
rtl_lps_leave(hw);
mac->link_state = MAC80211_LINKED_SCANNING;
} else
rtl_ips_nic_on(hw);
rtlpriv->cfg->ops->led_control(hw, LED_CTL_SITE_SURVEY);
rtlpriv->cfg->ops->scan_operation_backup(hw, SCAN_OPT_BACKUP);
}
static void rtl_op_sw_scan_complete(struct ieee80211_hw *hw)
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, ("\n"));
rtlpriv->cfg->ops->scan_operation_backup(hw, SCAN_OPT_RESTORE);
mac->act_scanning = false;
if (mac->link_state == MAC80211_LINKED_SCANNING) {
mac->link_state = MAC80211_LINKED;
/* fix fwlps issue */
rtlpriv->cfg->ops->set_network_type(hw, mac->opmode);
if (rtlpriv->dm.b_useramask)
rtlpriv->cfg->ops->update_rate_mask(hw, 0);
else
rtlpriv->cfg->ops->update_rate_table(hw);
}
}
static int rtl_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
struct ieee80211_vif *vif, struct ieee80211_sta *sta,
struct ieee80211_key_conf *key)
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
u8 key_type = NO_ENCRYPTION;
u8 key_idx;
bool group_key = false;
bool wep_only = false;
int err = 0;
u8 mac_addr[ETH_ALEN];
u8 bcast_addr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
u8 zero_addr[ETH_ALEN] = { 0 };
if (rtlpriv->cfg->mod_params->sw_crypto || rtlpriv->sec.use_sw_sec) {
RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
("not open hw encryption\n"));
return -ENOSPC; /*User disabled HW-crypto */
}
RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
("%s hardware based encryption for keyidx: %d, mac: %pM\n",
cmd == SET_KEY ? "Using" : "Disabling", key->keyidx,
sta ? sta->addr : bcast_addr));
rtlpriv->sec.being_setkey = true;
rtl_ips_nic_on(hw);
mutex_lock(&rtlpriv->locks.conf_mutex);
/* <1> get encryption alg */
switch (key->cipher) {
case WLAN_CIPHER_SUITE_WEP40:
key_type = WEP40_ENCRYPTION;
RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, ("alg:WEP40\n"));
rtlpriv->sec.use_defaultkey = true;
break;
case WLAN_CIPHER_SUITE_WEP104:
RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
("alg:WEP104\n"));
key_type = WEP104_ENCRYPTION;
rtlpriv->sec.use_defaultkey = true;
break;
case WLAN_CIPHER_SUITE_TKIP:
key_type = TKIP_ENCRYPTION;
RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, ("alg:TKIP\n"));
if (mac->opmode == NL80211_IFTYPE_ADHOC)
rtlpriv->sec.use_defaultkey = true;
break;
case WLAN_CIPHER_SUITE_CCMP:
key_type = AESCCMP_ENCRYPTION;
RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, ("alg:CCMP\n"));
if (mac->opmode == NL80211_IFTYPE_ADHOC)
rtlpriv->sec.use_defaultkey = true;
break;
default:
RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
("alg_err:%x!!!!:\n", key->cipher));
goto out_unlock;
}
/* <2> get key_idx */
key_idx = (u8) (key->keyidx);
if (key_idx > 3)
goto out_unlock;
/* <3> if pairwise key enable_hw_sec */
group_key = !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE);
if ((!group_key) || (mac->opmode == NL80211_IFTYPE_ADHOC) ||
rtlpriv->sec.pairwise_enc_algorithm == NO_ENCRYPTION) {
if (rtlpriv->sec.pairwise_enc_algorithm == NO_ENCRYPTION &&
(key_type == WEP40_ENCRYPTION ||
key_type == WEP104_ENCRYPTION))
wep_only = true;
rtlpriv->sec.pairwise_enc_algorithm = key_type;
rtlpriv->cfg->ops->enable_hw_sec(hw);
}
/* <4> set key based on cmd */
switch (cmd) {
case SET_KEY:
if (wep_only) {
RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
("set WEP(group/pairwise) key\n"));
/* Pairwise key with an assigned MAC address. */
rtlpriv->sec.pairwise_enc_algorithm = key_type;
rtlpriv->sec.group_enc_algorithm = key_type;
/*set local buf about wep key. */
memcpy(rtlpriv->sec.key_buf[key_idx],
key->key, key->keylen);
rtlpriv->sec.key_len[key_idx] = key->keylen;
memcpy(mac_addr, zero_addr, ETH_ALEN);
} else if (group_key) { /* group key */
RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
("set group key\n"));
/* group key */
rtlpriv->sec.group_enc_algorithm = key_type;
/*set local buf about group key. */
memcpy(rtlpriv->sec.key_buf[key_idx],
key->key, key->keylen);
rtlpriv->sec.key_len[key_idx] = key->keylen;
memcpy(mac_addr, bcast_addr, ETH_ALEN);
} else { /* pairwise key */
RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
("set pairwise key\n"));
if (!sta) {
RT_ASSERT(false, ("pairwise key withnot"
"mac_addr\n"));
err = -EOPNOTSUPP;
goto out_unlock;
}
/* Pairwise key with an assigned MAC address. */
rtlpriv->sec.pairwise_enc_algorithm = key_type;
/*set local buf about pairwise key. */
memcpy(rtlpriv->sec.key_buf[PAIRWISE_KEYIDX],
key->key, key->keylen);
rtlpriv->sec.key_len[PAIRWISE_KEYIDX] = key->keylen;
rtlpriv->sec.pairwise_key =
rtlpriv->sec.key_buf[PAIRWISE_KEYIDX];
memcpy(mac_addr, sta->addr, ETH_ALEN);
}
rtlpriv->cfg->ops->set_key(hw, key_idx, mac_addr,
group_key, key_type, wep_only,
false);
/* <5> tell mac80211 do something: */
/*must use sw generate IV, or can not work !!!!. */
key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
key->hw_key_idx = key_idx;
if (key_type == TKIP_ENCRYPTION)
key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
break;
case DISABLE_KEY:
RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
("disable key delete one entry\n"));
/*set local buf about wep key. */
memset(rtlpriv->sec.key_buf[key_idx], 0, key->keylen);
rtlpriv->sec.key_len[key_idx] = 0;
memcpy(mac_addr, zero_addr, ETH_ALEN);
/*
*mac80211 will delete entrys one by one,
*so don't use rtl_cam_reset_all_entry
*or clear all entry here.
*/
rtl_cam_delete_one_entry(hw, mac_addr, key_idx);
break;
default:
RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
("cmd_err:%x!!!!:\n", cmd));
}
out_unlock:
mutex_unlock(&rtlpriv->locks.conf_mutex);
rtlpriv->sec.being_setkey = false;
return err;
}
static void rtl_op_rfkill_poll(struct ieee80211_hw *hw)
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
bool radio_state;
bool blocked;
u8 valid = 0;
if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
return;
mutex_lock(&rtlpriv->locks.conf_mutex);
/*if Radio On return true here */
radio_state = rtlpriv->cfg->ops->radio_onoff_checking(hw, &valid);
if (valid) {
if (unlikely(radio_state != rtlpriv->rfkill.rfkill_state)) {
rtlpriv->rfkill.rfkill_state = radio_state;
RT_TRACE(rtlpriv, COMP_RF, DBG_DMESG,
(KERN_INFO "wireless radio switch turned %s\n",
radio_state ? "on" : "off"));
blocked = (rtlpriv->rfkill.rfkill_state == 1) ? 0 : 1;
wiphy_rfkill_set_hw_state(hw->wiphy, blocked);
}
}
mutex_unlock(&rtlpriv->locks.conf_mutex);
}
const struct ieee80211_ops rtl_ops = {
.start = rtl_op_start,
.stop = rtl_op_stop,
.tx = rtl_op_tx,
.add_interface = rtl_op_add_interface,
.remove_interface = rtl_op_remove_interface,
.config = rtl_op_config,
.configure_filter = rtl_op_configure_filter,
.set_key = rtl_op_set_key,
.conf_tx = rtl_op_conf_tx,
.bss_info_changed = rtl_op_bss_info_changed,
.get_tsf = rtl_op_get_tsf,
.set_tsf = rtl_op_set_tsf,
.reset_tsf = rtl_op_reset_tsf,
.sta_notify = rtl_op_sta_notify,
.ampdu_action = rtl_op_ampdu_action,
.sw_scan_start = rtl_op_sw_scan_start,
.sw_scan_complete = rtl_op_sw_scan_complete,
.rfkill_poll = rtl_op_rfkill_poll,
};
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