diff options
Diffstat (limited to 'drivers/net/wireless/rtlwifi/base.c')
| -rw-r--r-- | drivers/net/wireless/rtlwifi/base.c | 1582 |
1 files changed, 1582 insertions, 0 deletions
diff --git a/drivers/net/wireless/rtlwifi/base.c b/drivers/net/wireless/rtlwifi/base.c new file mode 100644 index 00000000..e54488db --- /dev/null +++ b/drivers/net/wireless/rtlwifi/base.c @@ -0,0 +1,1582 @@ +/****************************************************************************** + * + * Copyright(c) 2009-2012 Realtek Corporation. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA + * + * The full GNU General Public License is included in this distribution in the + * file called LICENSE. + * + * Contact Information: + * wlanfae <wlanfae@realtek.com> + * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park, + * Hsinchu 300, Taiwan. + * + * Larry Finger <Larry.Finger@lwfinger.net> + * + *****************************************************************************/ + +#include "wifi.h" +#include "rc.h" +#include "base.h" +#include "efuse.h" +#include "cam.h" +#include "ps.h" +#include "regd.h" + +#include <linux/ip.h> +#include <linux/module.h> + +/* + *NOTICE!!!: This file will be very big, we should + *keep it clear under following roles: + * + *This file include following parts, so, if you add new + *functions into this file, please check which part it + *should includes. or check if you should add new part + *for this file: + * + *1) mac80211 init functions + *2) tx information functions + *3) functions called by core.c + *4) wq & timer callback functions + *5) frame process functions + *6) IOT functions + *7) sysfs functions + *8) ... + */ + +/********************************************************* + * + * mac80211 init functions + * + *********************************************************/ +static struct ieee80211_channel rtl_channeltable_2g[] = { + {.center_freq = 2412, .hw_value = 1,}, + {.center_freq = 2417, .hw_value = 2,}, + {.center_freq = 2422, .hw_value = 3,}, + {.center_freq = 2427, .hw_value = 4,}, + {.center_freq = 2432, .hw_value = 5,}, + {.center_freq = 2437, .hw_value = 6,}, + {.center_freq = 2442, .hw_value = 7,}, + {.center_freq = 2447, .hw_value = 8,}, + {.center_freq = 2452, .hw_value = 9,}, + {.center_freq = 2457, .hw_value = 10,}, + {.center_freq = 2462, .hw_value = 11,}, + {.center_freq = 2467, .hw_value = 12,}, + {.center_freq = 2472, .hw_value = 13,}, + {.center_freq = 2484, .hw_value = 14,}, +}; + +static struct ieee80211_channel rtl_channeltable_5g[] = { + {.center_freq = 5180, .hw_value = 36,}, + {.center_freq = 5200, .hw_value = 40,}, + {.center_freq = 5220, .hw_value = 44,}, + {.center_freq = 5240, .hw_value = 48,}, + {.center_freq = 5260, .hw_value = 52,}, + {.center_freq = 5280, .hw_value = 56,}, + {.center_freq = 5300, .hw_value = 60,}, + {.center_freq = 5320, .hw_value = 64,}, + {.center_freq = 5500, .hw_value = 100,}, + {.center_freq = 5520, .hw_value = 104,}, + {.center_freq = 5540, .hw_value = 108,}, + {.center_freq = 5560, .hw_value = 112,}, + {.center_freq = 5580, .hw_value = 116,}, + {.center_freq = 5600, .hw_value = 120,}, + {.center_freq = 5620, .hw_value = 124,}, + {.center_freq = 5640, .hw_value = 128,}, + {.center_freq = 5660, .hw_value = 132,}, + {.center_freq = 5680, .hw_value = 136,}, + {.center_freq = 5700, .hw_value = 140,}, + {.center_freq = 5745, .hw_value = 149,}, + {.center_freq = 5765, .hw_value = 153,}, + {.center_freq = 5785, .hw_value = 157,}, + {.center_freq = 5805, .hw_value = 161,}, + {.center_freq = 5825, .hw_value = 165,}, +}; + +static struct ieee80211_rate rtl_ratetable_2g[] = { + {.bitrate = 10, .hw_value = 0x00,}, + {.bitrate = 20, .hw_value = 0x01,}, + {.bitrate = 55, .hw_value = 0x02,}, + {.bitrate = 110, .hw_value = 0x03,}, + {.bitrate = 60, .hw_value = 0x04,}, + {.bitrate = 90, .hw_value = 0x05,}, + {.bitrate = 120, .hw_value = 0x06,}, + {.bitrate = 180, .hw_value = 0x07,}, + {.bitrate = 240, .hw_value = 0x08,}, + {.bitrate = 360, .hw_value = 0x09,}, + {.bitrate = 480, .hw_value = 0x0a,}, + {.bitrate = 540, .hw_value = 0x0b,}, +}; + +static struct ieee80211_rate rtl_ratetable_5g[] = { + {.bitrate = 60, .hw_value = 0x04,}, + {.bitrate = 90, .hw_value = 0x05,}, + {.bitrate = 120, .hw_value = 0x06,}, + {.bitrate = 180, .hw_value = 0x07,}, + {.bitrate = 240, .hw_value = 0x08,}, + {.bitrate = 360, .hw_value = 0x09,}, + {.bitrate = 480, .hw_value = 0x0a,}, + {.bitrate = 540, .hw_value = 0x0b,}, +}; + +static const struct ieee80211_supported_band rtl_band_2ghz = { + .band = IEEE80211_BAND_2GHZ, + + .channels = rtl_channeltable_2g, + .n_channels = ARRAY_SIZE(rtl_channeltable_2g), + + .bitrates = rtl_ratetable_2g, + .n_bitrates = ARRAY_SIZE(rtl_ratetable_2g), + + .ht_cap = {0}, +}; + +static struct ieee80211_supported_band rtl_band_5ghz = { + .band = IEEE80211_BAND_5GHZ, + + .channels = rtl_channeltable_5g, + .n_channels = ARRAY_SIZE(rtl_channeltable_5g), + + .bitrates = rtl_ratetable_5g, + .n_bitrates = ARRAY_SIZE(rtl_ratetable_5g), + + .ht_cap = {0}, +}; + +static const u8 tid_to_ac[] = { + 2, /* IEEE80211_AC_BE */ + 3, /* IEEE80211_AC_BK */ + 3, /* IEEE80211_AC_BK */ + 2, /* IEEE80211_AC_BE */ + 1, /* IEEE80211_AC_VI */ + 1, /* IEEE80211_AC_VI */ + 0, /* IEEE80211_AC_VO */ + 0, /* IEEE80211_AC_VO */ +}; + +u8 rtl_tid_to_ac(struct ieee80211_hw *hw, u8 tid) +{ + return tid_to_ac[tid]; +} + +static void _rtl_init_hw_ht_capab(struct ieee80211_hw *hw, + struct ieee80211_sta_ht_cap *ht_cap) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + struct rtl_phy *rtlphy = &(rtlpriv->phy); + + ht_cap->ht_supported = true; + ht_cap->cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 | + IEEE80211_HT_CAP_SGI_40 | + IEEE80211_HT_CAP_SGI_20 | + IEEE80211_HT_CAP_DSSSCCK40 | IEEE80211_HT_CAP_MAX_AMSDU; + + if (rtlpriv->rtlhal.disable_amsdu_8k) + ht_cap->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU; + + /* + *Maximum length of AMPDU that the STA can receive. + *Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets) + */ + ht_cap->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K; + + /*Minimum MPDU start spacing , */ + ht_cap->ampdu_density = IEEE80211_HT_MPDU_DENSITY_16; + + ht_cap->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED; + + /* + *hw->wiphy->bands[IEEE80211_BAND_2GHZ] + *base on ant_num + *rx_mask: RX mask + *if rx_ant =1 rx_mask[0]=0xff;==>MCS0-MCS7 + *if rx_ant =2 rx_mask[1]=0xff;==>MCS8-MCS15 + *if rx_ant >=3 rx_mask[2]=0xff; + *if BW_40 rx_mask[4]=0x01; + *highest supported RX rate + */ + if (get_rf_type(rtlphy) == RF_1T2R || get_rf_type(rtlphy) == RF_2T2R) { + + RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "1T2R or 2T2R\n"); + + ht_cap->mcs.rx_mask[0] = 0xFF; + ht_cap->mcs.rx_mask[1] = 0xFF; + ht_cap->mcs.rx_mask[4] = 0x01; + + ht_cap->mcs.rx_highest = cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS15); + } else if (get_rf_type(rtlphy) == RF_1T1R) { + + RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "1T1R\n"); + + ht_cap->mcs.rx_mask[0] = 0xFF; + ht_cap->mcs.rx_mask[1] = 0x00; + ht_cap->mcs.rx_mask[4] = 0x01; + + ht_cap->mcs.rx_highest = cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS7); + } +} + +static void _rtl_init_mac80211(struct ieee80211_hw *hw) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + struct rtl_hal *rtlhal = rtl_hal(rtlpriv); + struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw)); + struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw)); + struct ieee80211_supported_band *sband; + + + if (rtlhal->macphymode == SINGLEMAC_SINGLEPHY && rtlhal->bandset == + BAND_ON_BOTH) { + /* 1: 2.4 G bands */ + /* <1> use mac->bands as mem for hw->wiphy->bands */ + sband = &(rtlmac->bands[IEEE80211_BAND_2GHZ]); + + /* <2> set hw->wiphy->bands[IEEE80211_BAND_2GHZ] + * to default value(1T1R) */ + memcpy(&(rtlmac->bands[IEEE80211_BAND_2GHZ]), &rtl_band_2ghz, + sizeof(struct ieee80211_supported_band)); + + /* <3> init ht cap base on ant_num */ + _rtl_init_hw_ht_capab(hw, &sband->ht_cap); + + /* <4> set mac->sband to wiphy->sband */ + hw->wiphy->bands[IEEE80211_BAND_2GHZ] = sband; + + /* 2: 5 G bands */ + /* <1> use mac->bands as mem for hw->wiphy->bands */ + sband = &(rtlmac->bands[IEEE80211_BAND_5GHZ]); + + /* <2> set hw->wiphy->bands[IEEE80211_BAND_5GHZ] + * to default value(1T1R) */ + memcpy(&(rtlmac->bands[IEEE80211_BAND_5GHZ]), &rtl_band_5ghz, + sizeof(struct ieee80211_supported_band)); + + /* <3> init ht cap base on ant_num */ + _rtl_init_hw_ht_capab(hw, &sband->ht_cap); + + /* <4> set mac->sband to wiphy->sband */ + hw->wiphy->bands[IEEE80211_BAND_5GHZ] = sband; + } else { + if (rtlhal->current_bandtype == BAND_ON_2_4G) { + /* <1> use mac->bands as mem for hw->wiphy->bands */ + sband = &(rtlmac->bands[IEEE80211_BAND_2GHZ]); + + /* <2> set hw->wiphy->bands[IEEE80211_BAND_2GHZ] + * to default value(1T1R) */ + memcpy(&(rtlmac->bands[IEEE80211_BAND_2GHZ]), + &rtl_band_2ghz, + sizeof(struct ieee80211_supported_band)); + + /* <3> init ht cap base on ant_num */ + _rtl_init_hw_ht_capab(hw, &sband->ht_cap); + + /* <4> set mac->sband to wiphy->sband */ + hw->wiphy->bands[IEEE80211_BAND_2GHZ] = sband; + } else if (rtlhal->current_bandtype == BAND_ON_5G) { + /* <1> use mac->bands as mem for hw->wiphy->bands */ + sband = &(rtlmac->bands[IEEE80211_BAND_5GHZ]); + + /* <2> set hw->wiphy->bands[IEEE80211_BAND_5GHZ] + * to default value(1T1R) */ + memcpy(&(rtlmac->bands[IEEE80211_BAND_5GHZ]), + &rtl_band_5ghz, + sizeof(struct ieee80211_supported_band)); + + /* <3> init ht cap base on ant_num */ + _rtl_init_hw_ht_capab(hw, &sband->ht_cap); + + /* <4> set mac->sband to wiphy->sband */ + hw->wiphy->bands[IEEE80211_BAND_5GHZ] = sband; + } else { + RT_TRACE(rtlpriv, COMP_INIT, DBG_EMERG, "Err BAND %d\n", + rtlhal->current_bandtype); + } + } + /* <5> set hw caps */ + hw->flags = IEEE80211_HW_SIGNAL_DBM | + IEEE80211_HW_RX_INCLUDES_FCS | + IEEE80211_HW_AMPDU_AGGREGATION | + IEEE80211_HW_CONNECTION_MONITOR | + /* IEEE80211_HW_SUPPORTS_CQM_RSSI | */ + IEEE80211_HW_REPORTS_TX_ACK_STATUS | 0; + + /* swlps or hwlps has been set in diff chip in init_sw_vars */ + if (rtlpriv->psc.swctrl_lps) + hw->flags |= IEEE80211_HW_SUPPORTS_PS | + IEEE80211_HW_PS_NULLFUNC_STACK | + /* IEEE80211_HW_SUPPORTS_DYNAMIC_PS | */ + 0; + + hw->wiphy->interface_modes = + BIT(NL80211_IFTYPE_AP) | + BIT(NL80211_IFTYPE_STATION) | + BIT(NL80211_IFTYPE_ADHOC); + + hw->wiphy->rts_threshold = 2347; + + hw->queues = AC_MAX; + hw->extra_tx_headroom = RTL_TX_HEADER_SIZE; + + /* TODO: Correct this value for our hw */ + /* TODO: define these hard code value */ + hw->channel_change_time = 100; + hw->max_listen_interval = 10; + hw->max_rate_tries = 4; + /* hw->max_rates = 1; */ + hw->sta_data_size = sizeof(struct rtl_sta_info); + + /* <6> mac address */ + if (is_valid_ether_addr(rtlefuse->dev_addr)) { + SET_IEEE80211_PERM_ADDR(hw, rtlefuse->dev_addr); + } else { + u8 rtlmac1[] = { 0x00, 0xe0, 0x4c, 0x81, 0x92, 0x00 }; + get_random_bytes((rtlmac1 + (ETH_ALEN - 1)), 1); + SET_IEEE80211_PERM_ADDR(hw, rtlmac1); + } + +} + +static void _rtl_init_deferred_work(struct ieee80211_hw *hw) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + + /* <1> timer */ + init_timer(&rtlpriv->works.watchdog_timer); + setup_timer(&rtlpriv->works.watchdog_timer, + rtl_watch_dog_timer_callback, (unsigned long)hw); + + /* <2> work queue */ + rtlpriv->works.hw = hw; + rtlpriv->works.rtl_wq = alloc_workqueue(rtlpriv->cfg->name, 0, 0); + INIT_DELAYED_WORK(&rtlpriv->works.watchdog_wq, + (void *)rtl_watchdog_wq_callback); + INIT_DELAYED_WORK(&rtlpriv->works.ips_nic_off_wq, + (void *)rtl_ips_nic_off_wq_callback); + INIT_DELAYED_WORK(&rtlpriv->works.ps_work, + (void *)rtl_swlps_wq_callback); + INIT_DELAYED_WORK(&rtlpriv->works.ps_rfon_wq, + (void *)rtl_swlps_rfon_wq_callback); + +} + +void rtl_deinit_deferred_work(struct ieee80211_hw *hw) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + + del_timer_sync(&rtlpriv->works.watchdog_timer); + + cancel_delayed_work(&rtlpriv->works.watchdog_wq); + cancel_delayed_work(&rtlpriv->works.ips_nic_off_wq); + cancel_delayed_work(&rtlpriv->works.ps_work); + cancel_delayed_work(&rtlpriv->works.ps_rfon_wq); +} + +void rtl_init_rfkill(struct ieee80211_hw *hw) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + + bool radio_state; + bool blocked; + u8 valid = 0; + + /*set init state to on */ + rtlpriv->rfkill.rfkill_state = true; + wiphy_rfkill_set_hw_state(hw->wiphy, 0); + + radio_state = rtlpriv->cfg->ops->radio_onoff_checking(hw, &valid); + + if (valid) { + pr_info("wireless switch is %s\n", + rtlpriv->rfkill.rfkill_state ? "on" : "off"); + + rtlpriv->rfkill.rfkill_state = radio_state; + + blocked = (rtlpriv->rfkill.rfkill_state == 1) ? 0 : 1; + wiphy_rfkill_set_hw_state(hw->wiphy, blocked); + } + + wiphy_rfkill_start_polling(hw->wiphy); +} +EXPORT_SYMBOL(rtl_init_rfkill); + +void rtl_deinit_rfkill(struct ieee80211_hw *hw) +{ + wiphy_rfkill_stop_polling(hw->wiphy); +} + +int rtl_init_core(struct ieee80211_hw *hw) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw)); + + /* <1> init mac80211 */ + _rtl_init_mac80211(hw); + rtlmac->hw = hw; + + /* <2> rate control register */ + hw->rate_control_algorithm = "rtl_rc"; + + /* + * <3> init CRDA must come after init + * mac80211 hw in _rtl_init_mac80211. + */ + if (rtl_regd_init(hw, rtl_reg_notifier)) { + RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "REGD init failed\n"); + return 1; + } else { + /* CRDA regd hint must after init CRDA */ + if (regulatory_hint(hw->wiphy, rtlpriv->regd.alpha2)) { + RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING, + "regulatory_hint fail\n"); + } + } + + /* <4> locks */ + mutex_init(&rtlpriv->locks.conf_mutex); + mutex_init(&rtlpriv->locks.ps_mutex); + spin_lock_init(&rtlpriv->locks.ips_lock); + spin_lock_init(&rtlpriv->locks.irq_th_lock); + spin_lock_init(&rtlpriv->locks.h2c_lock); + spin_lock_init(&rtlpriv->locks.rf_ps_lock); + spin_lock_init(&rtlpriv->locks.rf_lock); + spin_lock_init(&rtlpriv->locks.waitq_lock); + spin_lock_init(&rtlpriv->locks.cck_and_rw_pagea_lock); + + rtlmac->link_state = MAC80211_NOLINK; + + /* <5> init deferred work */ + _rtl_init_deferred_work(hw); + + return 0; +} + +void rtl_deinit_core(struct ieee80211_hw *hw) +{ +} + +void rtl_init_rx_config(struct ieee80211_hw *hw) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); + + rtlpriv->cfg->ops->get_hw_reg(hw, HW_VAR_RCR, (u8 *) (&mac->rx_conf)); +} + +/********************************************************* + * + * tx information functions + * + *********************************************************/ +static void _rtl_qurey_shortpreamble_mode(struct ieee80211_hw *hw, + struct rtl_tcb_desc *tcb_desc, + struct ieee80211_tx_info *info) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + u8 rate_flag = info->control.rates[0].flags; + + tcb_desc->use_shortpreamble = false; + + /* 1M can only use Long Preamble. 11B spec */ + if (tcb_desc->hw_rate == rtlpriv->cfg->maps[RTL_RC_CCK_RATE1M]) + return; + else if (rate_flag & IEEE80211_TX_RC_USE_SHORT_PREAMBLE) + tcb_desc->use_shortpreamble = true; + + return; +} + +static void _rtl_query_shortgi(struct ieee80211_hw *hw, + struct ieee80211_sta *sta, + struct rtl_tcb_desc *tcb_desc, + struct ieee80211_tx_info *info) +{ + struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); + u8 rate_flag = info->control.rates[0].flags; + u8 sgi_40 = 0, sgi_20 = 0, bw_40 = 0; + tcb_desc->use_shortgi = false; + + if (sta == NULL) + return; + + sgi_40 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40; + sgi_20 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20; + + if (!(sta->ht_cap.ht_supported)) + return; + + if (!sgi_40 && !sgi_20) + return; + + if (mac->opmode == NL80211_IFTYPE_STATION) + bw_40 = mac->bw_40; + else if (mac->opmode == NL80211_IFTYPE_AP || + mac->opmode == NL80211_IFTYPE_ADHOC) + bw_40 = sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40; + + if (bw_40 && sgi_40) + tcb_desc->use_shortgi = true; + else if ((bw_40 == false) && sgi_20) + tcb_desc->use_shortgi = true; + + if (!(rate_flag & IEEE80211_TX_RC_SHORT_GI)) + tcb_desc->use_shortgi = false; +} + +static void _rtl_query_protection_mode(struct ieee80211_hw *hw, + struct rtl_tcb_desc *tcb_desc, + struct ieee80211_tx_info *info) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + u8 rate_flag = info->control.rates[0].flags; + + /* Common Settings */ + tcb_desc->rts_stbc = false; + tcb_desc->cts_enable = false; + tcb_desc->rts_sc = 0; + tcb_desc->rts_bw = false; + tcb_desc->rts_use_shortpreamble = false; + tcb_desc->rts_use_shortgi = false; + + if (rate_flag & IEEE80211_TX_RC_USE_CTS_PROTECT) { + /* Use CTS-to-SELF in protection mode. */ + tcb_desc->rts_enable = true; + tcb_desc->cts_enable = true; + tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M]; + } else if (rate_flag & IEEE80211_TX_RC_USE_RTS_CTS) { + /* Use RTS-CTS in protection mode. */ + tcb_desc->rts_enable = true; + tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M]; + } +} + +static void _rtl_txrate_selectmode(struct ieee80211_hw *hw, + struct ieee80211_sta *sta, + struct rtl_tcb_desc *tcb_desc) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); + struct rtl_sta_info *sta_entry = NULL; + u8 ratr_index = 7; + + if (sta) { + sta_entry = (struct rtl_sta_info *) sta->drv_priv; + ratr_index = sta_entry->ratr_index; + } + if (!tcb_desc->disable_ratefallback || !tcb_desc->use_driver_rate) { + if (mac->opmode == NL80211_IFTYPE_STATION) { + tcb_desc->ratr_index = 0; + } else if (mac->opmode == NL80211_IFTYPE_ADHOC) { + if (tcb_desc->multicast || tcb_desc->broadcast) { + tcb_desc->hw_rate = + rtlpriv->cfg->maps[RTL_RC_CCK_RATE2M]; + tcb_desc->use_driver_rate = 1; + } else { + /* TODO */ + } + tcb_desc->ratr_index = ratr_index; + } else if (mac->opmode == NL80211_IFTYPE_AP) { + tcb_desc->ratr_index = ratr_index; + } + } + + if (rtlpriv->dm.useramask) { + /* TODO we will differentiate adhoc and station futrue */ + if (mac->opmode == NL80211_IFTYPE_STATION) { + tcb_desc->mac_id = 0; + + if (mac->mode == WIRELESS_MODE_N_24G) + tcb_desc->ratr_index = RATR_INX_WIRELESS_NGB; + else if (mac->mode == WIRELESS_MODE_N_5G) + tcb_desc->ratr_index = RATR_INX_WIRELESS_NG; + else if (mac->mode & WIRELESS_MODE_G) + tcb_desc->ratr_index = RATR_INX_WIRELESS_GB; + else if (mac->mode & WIRELESS_MODE_B) + tcb_desc->ratr_index = RATR_INX_WIRELESS_B; + else if (mac->mode & WIRELESS_MODE_A) + tcb_desc->ratr_index = RATR_INX_WIRELESS_G; + } else if (mac->opmode == NL80211_IFTYPE_AP || + mac->opmode == NL80211_IFTYPE_ADHOC) { + if (NULL != sta) { + if (sta->aid > 0) + tcb_desc->mac_id = sta->aid + 1; + else + tcb_desc->mac_id = 1; + } else { + tcb_desc->mac_id = 0; + } + } + } + +} + +static void _rtl_query_bandwidth_mode(struct ieee80211_hw *hw, + struct ieee80211_sta *sta, + struct rtl_tcb_desc *tcb_desc) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); + + tcb_desc->packet_bw = false; + if (!sta) + return; + if (mac->opmode == NL80211_IFTYPE_AP || + mac->opmode == NL80211_IFTYPE_ADHOC) { + if (!(sta->ht_cap.ht_supported) || + !(sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)) + return; + } else if (mac->opmode == NL80211_IFTYPE_STATION) { + if (!mac->bw_40 || !(sta->ht_cap.ht_supported)) + return; + } + if (tcb_desc->multicast || tcb_desc->broadcast) + return; + + /*use legency rate, shall use 20MHz */ + if (tcb_desc->hw_rate <= rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M]) + return; + + tcb_desc->packet_bw = true; +} + +static u8 _rtl_get_highest_n_rate(struct ieee80211_hw *hw) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + struct rtl_phy *rtlphy = &(rtlpriv->phy); + u8 hw_rate; + + if (get_rf_type(rtlphy) == RF_2T2R) + hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15]; + else + hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS7]; + + return hw_rate; +} + +/* 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, + * DESC92_RATE1M-->DESC92_RATE54M ==> idx is 0-->11, + * + * N rate: + * (rx_status->flag & RX_FLAG_HT) = 1, + * DESC92_RATEMCS0-->DESC92_RATEMCS15 ==> idx is 0-->15 + * + * 5G band:rx_status->band == IEEE80211_BAND_5GHZ + * A rate: + * (rx_status->flag & RX_FLAG_HT) = 0, + * DESC92_RATE6M-->DESC92_RATE54M ==> idx is 0-->7, + * + * N rate: + * (rx_status->flag & RX_FLAG_HT) = 1, + * DESC92_RATEMCS0-->DESC92_RATEMCS15 ==> idx is 0-->15 + */ +int rtlwifi_rate_mapping(struct ieee80211_hw *hw, + bool isht, u8 desc_rate, bool first_ampdu) +{ + int rate_idx; + + if (false == isht) { + if (IEEE80211_BAND_2GHZ == hw->conf.channel->band) { + switch (desc_rate) { + case DESC92_RATE1M: + rate_idx = 0; + break; + case DESC92_RATE2M: + rate_idx = 1; + break; + case DESC92_RATE5_5M: + rate_idx = 2; + break; + case DESC92_RATE11M: + rate_idx = 3; + break; + case DESC92_RATE6M: + rate_idx = 4; + break; + case DESC92_RATE9M: + rate_idx = 5; + break; + case DESC92_RATE12M: + rate_idx = 6; + break; + case DESC92_RATE18M: + rate_idx = 7; + break; + case DESC92_RATE24M: + rate_idx = 8; + break; + case DESC92_RATE36M: + rate_idx = 9; + break; + case DESC92_RATE48M: + rate_idx = 10; + break; + case DESC92_RATE54M: + rate_idx = 11; + break; + default: + rate_idx = 0; + break; + } + } else { + switch (desc_rate) { + case DESC92_RATE6M: + rate_idx = 0; + break; + case DESC92_RATE9M: + rate_idx = 1; + break; + case DESC92_RATE12M: + rate_idx = 2; + break; + case DESC92_RATE18M: + rate_idx = 3; + break; + case DESC92_RATE24M: + rate_idx = 4; + break; + case DESC92_RATE36M: + rate_idx = 5; + break; + case DESC92_RATE48M: + rate_idx = 6; + break; + case DESC92_RATE54M: + rate_idx = 7; + break; + default: + rate_idx = 0; + break; + } + } + + } else { + + switch (desc_rate) { + case DESC92_RATEMCS0: + rate_idx = 0; + break; + case DESC92_RATEMCS1: + rate_idx = 1; + break; + case DESC92_RATEMCS2: + rate_idx = 2; + break; + case DESC92_RATEMCS3: + rate_idx = 3; + break; + case DESC92_RATEMCS4: + rate_idx = 4; + break; + case DESC92_RATEMCS5: + rate_idx = 5; + break; + case DESC92_RATEMCS6: + rate_idx = 6; + break; + case DESC92_RATEMCS7: + rate_idx = 7; + break; + case DESC92_RATEMCS8: + rate_idx = 8; + break; + case DESC92_RATEMCS9: + rate_idx = 9; + break; + case DESC92_RATEMCS10: + rate_idx = 10; + break; + case DESC92_RATEMCS11: + rate_idx = 11; + break; + case DESC92_RATEMCS12: + rate_idx = 12; + break; + case DESC92_RATEMCS13: + rate_idx = 13; + break; + case DESC92_RATEMCS14: + rate_idx = 14; + break; + case DESC92_RATEMCS15: + rate_idx = 15; + break; + default: + rate_idx = 0; + break; + } + } + return rate_idx; +} +EXPORT_SYMBOL(rtlwifi_rate_mapping); + +void rtl_get_tcb_desc(struct ieee80211_hw *hw, + struct ieee80211_tx_info *info, + struct ieee80211_sta *sta, + struct sk_buff *skb, struct rtl_tcb_desc *tcb_desc) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw)); + struct ieee80211_hdr *hdr = rtl_get_hdr(skb); + struct ieee80211_rate *txrate; + __le16 fc = hdr->frame_control; + + txrate = ieee80211_get_tx_rate(hw, info); + if (txrate) + tcb_desc->hw_rate = txrate->hw_value; + else + tcb_desc->hw_rate = 0; + + if (ieee80211_is_data(fc)) { + /* + *we set data rate INX 0 + *in rtl_rc.c if skb is special data or + *mgt which need low data rate. + */ + + /* + *So tcb_desc->hw_rate is just used for + *special data and mgt frames + */ + if (info->control.rates[0].idx == 0 || + ieee80211_is_nullfunc(fc)) { + tcb_desc->use_driver_rate = true; + tcb_desc->ratr_index = RATR_INX_WIRELESS_MC; + + tcb_desc->disable_ratefallback = 1; + } else { + /* + *because hw will nerver use hw_rate + *when tcb_desc->use_driver_rate = false + *so we never set highest N rate here, + *and N rate will all be controlled by FW + *when tcb_desc->use_driver_rate = false + */ + if (sta && (sta->ht_cap.ht_supported)) { + tcb_desc->hw_rate = _rtl_get_highest_n_rate(hw); + } else { + if (rtlmac->mode == WIRELESS_MODE_B) { + tcb_desc->hw_rate = + rtlpriv->cfg->maps[RTL_RC_CCK_RATE11M]; + } else { + tcb_desc->hw_rate = + rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M]; + } + } + } + + if (is_multicast_ether_addr(ieee80211_get_DA(hdr))) + tcb_desc->multicast = 1; + else if (is_broadcast_ether_addr(ieee80211_get_DA(hdr))) + tcb_desc->broadcast = 1; + + _rtl_txrate_selectmode(hw, sta, tcb_desc); + _rtl_query_bandwidth_mode(hw, sta, tcb_desc); + _rtl_qurey_shortpreamble_mode(hw, tcb_desc, info); + _rtl_query_shortgi(hw, sta, tcb_desc, info); + _rtl_query_protection_mode(hw, tcb_desc, info); + } else { + tcb_desc->use_driver_rate = true; + tcb_desc->ratr_index = RATR_INX_WIRELESS_MC; + tcb_desc->disable_ratefallback = 1; + tcb_desc->mac_id = 0; + tcb_desc->packet_bw = false; + } +} +EXPORT_SYMBOL(rtl_get_tcb_desc); + +bool rtl_action_proc(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx) +{ + struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); + struct ieee80211_hdr *hdr = rtl_get_hdr(skb); + struct rtl_priv *rtlpriv = rtl_priv(hw); + __le16 fc = hdr->frame_control; + u8 *act = (u8 *) (((u8 *) skb->data + MAC80211_3ADDR_LEN)); + u8 category; + + if (!ieee80211_is_action(fc)) + return true; + + category = *act; + act++; + switch (category) { + case ACT_CAT_BA: + switch (*act) { + case ACT_ADDBAREQ: + if (mac->act_scanning) + return false; + + RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG, + "%s ACT_ADDBAREQ From :%pM\n", + is_tx ? "Tx" : "Rx", hdr->addr2); + break; + case ACT_ADDBARSP: + RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG, + "%s ACT_ADDBARSP From :%pM\n", + is_tx ? "Tx" : "Rx", hdr->addr2); + break; + case ACT_DELBA: + RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG, + "ACT_ADDBADEL From :%pM\n", hdr->addr2); + break; + } + break; + default: + break; + } + + return true; +} + +/*should call before software enc*/ +u8 rtl_is_special_data(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw)); + __le16 fc = rtl_get_fc(skb); + u16 ether_type; + u8 mac_hdr_len = ieee80211_get_hdrlen_from_skb(skb); + const struct iphdr *ip; + + if (!ieee80211_is_data(fc)) + return false; + + + ip = (struct iphdr *)((u8 *) skb->data + mac_hdr_len + + SNAP_SIZE + PROTOC_TYPE_SIZE); + ether_type = *(u16 *) ((u8 *) skb->data + mac_hdr_len + SNAP_SIZE); + /* ether_type = ntohs(ether_type); */ + + if (ETH_P_IP == ether_type) { + if (IPPROTO_UDP == ip->protocol) { + struct udphdr *udp = (struct udphdr *)((u8 *) ip + + (ip->ihl << 2)); + if (((((u8 *) udp)[1] == 68) && + (((u8 *) udp)[3] == 67)) || + ((((u8 *) udp)[1] == 67) && + (((u8 *) udp)[3] == 68))) { + /* + * 68 : UDP BOOTP client + * 67 : UDP BOOTP server + */ + RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), + DBG_DMESG, "dhcp %s !!\n", + is_tx ? "Tx" : "Rx"); + + if (is_tx) { + rtl_lps_leave(hw); + ppsc->last_delaylps_stamp_jiffies = + jiffies; + } + + return true; + } + } + } else if (ETH_P_ARP == ether_type) { + if (is_tx) { + rtl_lps_leave(hw); + ppsc->last_delaylps_stamp_jiffies = jiffies; + } + + return true; + } else if (ETH_P_PAE == ether_type) { + RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG, + "802.1X %s EAPOL pkt!!\n", is_tx ? "Tx" : "Rx"); + + if (is_tx) { + rtl_lps_leave(hw); + ppsc->last_delaylps_stamp_jiffies = jiffies; + } + + return true; + } else if (ETH_P_IPV6 == ether_type) { + /* IPv6 */ + return true; + } + + return false; +} + +/********************************************************* + * + * functions called by core.c + * + *********************************************************/ +int rtl_tx_agg_start(struct ieee80211_hw *hw, + struct ieee80211_sta *sta, u16 tid, u16 *ssn) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + struct rtl_tid_data *tid_data; + struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); + struct rtl_sta_info *sta_entry = NULL; + + if (sta == NULL) + return -EINVAL; + + if (unlikely(tid >= MAX_TID_COUNT)) + return -EINVAL; + + sta_entry = (struct rtl_sta_info *)sta->drv_priv; + if (!sta_entry) + return -ENXIO; + tid_data = &sta_entry->tids[tid]; + + RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, "on ra = %pM tid = %d seq:%d\n", + sta->addr, tid, tid_data->seq_number); + + *ssn = tid_data->seq_number; + tid_data->agg.agg_state = RTL_AGG_START; + + ieee80211_start_tx_ba_cb_irqsafe(mac->vif, sta->addr, tid); + + return 0; +} + +int rtl_tx_agg_stop(struct ieee80211_hw *hw, + struct ieee80211_sta *sta, u16 tid) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); + struct rtl_sta_info *sta_entry = NULL; + + if (sta == NULL) + return -EINVAL; + + if (!sta->addr) { + RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "ra = NULL\n"); + return -EINVAL; + } + + RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, "on ra = %pM tid = %d\n", + sta->addr, tid); + + if (unlikely(tid >= MAX_TID_COUNT)) + return -EINVAL; + + sta_entry = (struct rtl_sta_info *)sta->drv_priv; + sta_entry->tids[tid].agg.agg_state = RTL_AGG_STOP; + + ieee80211_stop_tx_ba_cb_irqsafe(mac->vif, sta->addr, tid); + + return 0; +} + +int rtl_tx_agg_oper(struct ieee80211_hw *hw, + struct ieee80211_sta *sta, u16 tid) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + struct rtl_sta_info *sta_entry = NULL; + + if (sta == NULL) + return -EINVAL; + + if (!sta->addr) { + RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "ra = NULL\n"); + return -EINVAL; + } + + RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, "on ra = %pM tid = %d\n", + sta->addr, tid); + + if (unlikely(tid >= MAX_TID_COUNT)) + return -EINVAL; + + sta_entry = (struct rtl_sta_info *)sta->drv_priv; + sta_entry->tids[tid].agg.agg_state = RTL_AGG_OPERATIONAL; + + return 0; +} + +/********************************************************* + * + * wq & timer callback functions + * + *********************************************************/ +void rtl_watchdog_wq_callback(void *data) +{ + struct rtl_works *rtlworks = container_of_dwork_rtl(data, + struct rtl_works, + watchdog_wq); + struct ieee80211_hw *hw = rtlworks->hw; + struct rtl_priv *rtlpriv = rtl_priv(hw); + struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); + struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); + bool busytraffic = false; + bool higher_busytraffic = false; + bool higher_busyrxtraffic = false; + u8 idx, tid; + u32 rx_cnt_inp4eriod = 0; + u32 tx_cnt_inp4eriod = 0; + u32 aver_rx_cnt_inperiod = 0; + u32 aver_tx_cnt_inperiod = 0; + u32 aver_tidtx_inperiod[MAX_TID_COUNT] = {0}; + u32 tidtx_inp4eriod[MAX_TID_COUNT] = {0}; + bool enter_ps = false; + + if (is_hal_stop(rtlhal)) + return; + + /* <1> Determine if action frame is allowed */ + if (mac->link_state > MAC80211_NOLINK) { + if (mac->cnt_after_linked < 20) + mac->cnt_after_linked++; + } else { + mac->cnt_after_linked = 0; + } + + /* + *<2> to check if traffic busy, if + * busytraffic we don't change channel + */ + if (mac->link_state >= MAC80211_LINKED) { + + /* (1) get aver_rx_cnt_inperiod & aver_tx_cnt_inperiod */ + for (idx = 0; idx <= 2; idx++) { + rtlpriv->link_info.num_rx_in4period[idx] = + rtlpriv->link_info.num_rx_in4period[idx + 1]; + rtlpriv->link_info.num_tx_in4period[idx] = + rtlpriv->link_info.num_tx_in4period[idx + 1]; + } + rtlpriv->link_info.num_rx_in4period[3] = + rtlpriv->link_info.num_rx_inperiod; + rtlpriv->link_info.num_tx_in4period[3] = + rtlpriv->link_info.num_tx_inperiod; + for (idx = 0; idx <= 3; idx++) { + rx_cnt_inp4eriod += + rtlpriv->link_info.num_rx_in4period[idx]; + tx_cnt_inp4eriod += + rtlpriv->link_info.num_tx_in4period[idx]; + } + aver_rx_cnt_inperiod = rx_cnt_inp4eriod / 4; + aver_tx_cnt_inperiod = tx_cnt_inp4eriod / 4; + + /* (2) check traffic busy */ + if (aver_rx_cnt_inperiod > 100 || aver_tx_cnt_inperiod > 100) + busytraffic = true; + + /* Higher Tx/Rx data. */ + if (aver_rx_cnt_inperiod > 4000 || + aver_tx_cnt_inperiod > 4000) { + higher_busytraffic = true; + + /* Extremely high Rx data. */ + if (aver_rx_cnt_inperiod > 5000) + higher_busyrxtraffic = true; + } + + /* check every tid's tx traffic */ + for (tid = 0; tid <= 7; tid++) { + for (idx = 0; idx <= 2; idx++) + rtlpriv->link_info.tidtx_in4period[tid][idx] = + rtlpriv->link_info.tidtx_in4period[tid] + [idx + 1]; + rtlpriv->link_info.tidtx_in4period[tid][3] = + rtlpriv->link_info.tidtx_inperiod[tid]; + + for (idx = 0; idx <= 3; idx++) + tidtx_inp4eriod[tid] += + rtlpriv->link_info.tidtx_in4period[tid][idx]; + aver_tidtx_inperiod[tid] = tidtx_inp4eriod[tid] / 4; + if (aver_tidtx_inperiod[tid] > 5000) + rtlpriv->link_info.higher_busytxtraffic[tid] = + true; + else + rtlpriv->link_info.higher_busytxtraffic[tid] = + false; + } + + if (((rtlpriv->link_info.num_rx_inperiod + + rtlpriv->link_info.num_tx_inperiod) > 8) || + (rtlpriv->link_info.num_rx_inperiod > 2)) + enter_ps = false; + else + enter_ps = true; + + /* LeisurePS only work in infra mode. */ + if (enter_ps) + rtl_lps_enter(hw); + else + rtl_lps_leave(hw); + } + + rtlpriv->link_info.num_rx_inperiod = 0; + rtlpriv->link_info.num_tx_inperiod = 0; + for (tid = 0; tid <= 7; tid++) + rtlpriv->link_info.tidtx_inperiod[tid] = 0; + + rtlpriv->link_info.busytraffic = busytraffic; + rtlpriv->link_info.higher_busytraffic = higher_busytraffic; + rtlpriv->link_info.higher_busyrxtraffic = higher_busyrxtraffic; + + /* <3> DM */ + rtlpriv->cfg->ops->dm_watchdog(hw); +} + +void rtl_watch_dog_timer_callback(unsigned long data) +{ + struct ieee80211_hw *hw = (struct ieee80211_hw *)data; + struct rtl_priv *rtlpriv = rtl_priv(hw); + + queue_delayed_work(rtlpriv->works.rtl_wq, + &rtlpriv->works.watchdog_wq, 0); + + mod_timer(&rtlpriv->works.watchdog_timer, + jiffies + MSECS(RTL_WATCH_DOG_TIME)); +} + +/********************************************************* + * + * frame process functions + * + *********************************************************/ +u8 *rtl_find_ie(u8 *data, unsigned int len, u8 ie) +{ + struct ieee80211_mgmt *mgmt = (void *)data; + u8 *pos, *end; + + pos = (u8 *)mgmt->u.beacon.variable; + end = data + len; + while (pos < end) { + if (pos + 2 + pos[1] > end) + return NULL; + + if (pos[0] == ie) + return pos; + + pos += 2 + pos[1]; + } + return NULL; +} + +/* when we use 2 rx ants we send IEEE80211_SMPS_OFF */ +/* when we use 1 rx ant we send IEEE80211_SMPS_STATIC */ +static struct sk_buff *rtl_make_smps_action(struct ieee80211_hw *hw, + enum ieee80211_smps_mode smps, u8 *da, u8 *bssid) +{ + struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw)); + struct sk_buff *skb; + struct ieee80211_mgmt *action_frame; + + /* 27 = header + category + action + smps mode */ + skb = dev_alloc_skb(27 + hw->extra_tx_headroom); + if (!skb) + return NULL; + + skb_reserve(skb, hw->extra_tx_headroom); + action_frame = (void *)skb_put(skb, 27); + memset(action_frame, 0, 27); + memcpy(action_frame->da, da, ETH_ALEN); + memcpy(action_frame->sa, rtlefuse->dev_addr, ETH_ALEN); + memcpy(action_frame->bssid, bssid, ETH_ALEN); + action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | + IEEE80211_STYPE_ACTION); + action_frame->u.action.category = WLAN_CATEGORY_HT; + action_frame->u.action.u.ht_smps.action = WLAN_HT_ACTION_SMPS; + switch (smps) { + case IEEE80211_SMPS_AUTOMATIC:/* 0 */ + case IEEE80211_SMPS_NUM_MODES:/* 4 */ + WARN_ON(1); + case IEEE80211_SMPS_OFF:/* 1 */ /*MIMO_PS_NOLIMIT*/ + action_frame->u.action.u.ht_smps.smps_control = + WLAN_HT_SMPS_CONTROL_DISABLED;/* 0 */ + break; + case IEEE80211_SMPS_STATIC:/* 2 */ /*MIMO_PS_STATIC*/ + action_frame->u.action.u.ht_smps.smps_control = + WLAN_HT_SMPS_CONTROL_STATIC;/* 1 */ + break; + case IEEE80211_SMPS_DYNAMIC:/* 3 */ /*MIMO_PS_DYNAMIC*/ + action_frame->u.action.u.ht_smps.smps_control = + WLAN_HT_SMPS_CONTROL_DYNAMIC;/* 3 */ + break; + } + + return skb; +} + +int rtl_send_smps_action(struct ieee80211_hw *hw, + struct ieee80211_sta *sta, u8 *da, u8 *bssid, + enum ieee80211_smps_mode smps) +{ + 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)); + struct sk_buff *skb = rtl_make_smps_action(hw, smps, da, bssid); + struct rtl_tcb_desc tcb_desc; + memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc)); + + if (rtlpriv->mac80211.act_scanning) + goto err_free; + + if (!sta) + goto err_free; + + 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; + + /* this is a type = mgmt * stype = action frame */ + if (skb) { + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); + struct rtl_sta_info *sta_entry = + (struct rtl_sta_info *) sta->drv_priv; + sta_entry->mimo_ps = smps; + rtlpriv->cfg->ops->update_rate_tbl(hw, sta, 0); + + info->control.rates[0].idx = 0; + info->control.sta = sta; + info->band = hw->conf.channel->band; + rtlpriv->intf_ops->adapter_tx(hw, skb, &tcb_desc); + } +err_free: + return 0; +} + +/********************************************************* + * + * IOT functions + * + *********************************************************/ +static bool rtl_chk_vendor_ouisub(struct ieee80211_hw *hw, + struct octet_string vendor_ie) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + bool matched = false; + static u8 athcap_1[] = { 0x00, 0x03, 0x7F }; + static u8 athcap_2[] = { 0x00, 0x13, 0x74 }; + static u8 broadcap_1[] = { 0x00, 0x10, 0x18 }; + static u8 broadcap_2[] = { 0x00, 0x0a, 0xf7 }; + static u8 broadcap_3[] = { 0x00, 0x05, 0xb5 }; + static u8 racap[] = { 0x00, 0x0c, 0x43 }; + static u8 ciscocap[] = { 0x00, 0x40, 0x96 }; + static u8 marvcap[] = { 0x00, 0x50, 0x43 }; + + if (memcmp(vendor_ie.octet, athcap_1, 3) == 0 || + memcmp(vendor_ie.octet, athcap_2, 3) == 0) { + rtlpriv->mac80211.vendor = PEER_ATH; + matched = true; + } else if (memcmp(vendor_ie.octet, broadcap_1, 3) == 0 || + memcmp(vendor_ie.octet, broadcap_2, 3) == 0 || + memcmp(vendor_ie.octet, broadcap_3, 3) == 0) { + rtlpriv->mac80211.vendor = PEER_BROAD; + matched = true; + } else if (memcmp(vendor_ie.octet, racap, 3) == 0) { + rtlpriv->mac80211.vendor = PEER_RAL; + matched = true; + } else if (memcmp(vendor_ie.octet, ciscocap, 3) == 0) { + rtlpriv->mac80211.vendor = PEER_CISCO; + matched = true; + } else if (memcmp(vendor_ie.octet, marvcap, 3) == 0) { + rtlpriv->mac80211.vendor = PEER_MARV; + matched = true; + } + + return matched; +} + +static bool rtl_find_221_ie(struct ieee80211_hw *hw, u8 *data, + unsigned int len) +{ + struct ieee80211_mgmt *mgmt = (void *)data; + struct octet_string vendor_ie; + u8 *pos, *end; + + pos = (u8 *)mgmt->u.beacon.variable; + end = data + len; + while (pos < end) { + if (pos[0] == 221) { + vendor_ie.length = pos[1]; + vendor_ie.octet = &pos[2]; + if (rtl_chk_vendor_ouisub(hw, vendor_ie)) + return true; + } + + if (pos + 2 + pos[1] > end) + return false; + + pos += 2 + pos[1]; + } + return false; +} + +void rtl_recognize_peer(struct ieee80211_hw *hw, u8 *data, unsigned int len) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); + struct ieee80211_hdr *hdr = (void *)data; + u32 vendor = PEER_UNKNOWN; + + static u8 ap3_1[3] = { 0x00, 0x14, 0xbf }; + static u8 ap3_2[3] = { 0x00, 0x1a, 0x70 }; + static u8 ap3_3[3] = { 0x00, 0x1d, 0x7e }; + static u8 ap4_1[3] = { 0x00, 0x90, 0xcc }; + static u8 ap4_2[3] = { 0x00, 0x0e, 0x2e }; + static u8 ap4_3[3] = { 0x00, 0x18, 0x02 }; + static u8 ap4_4[3] = { 0x00, 0x17, 0x3f }; + static u8 ap4_5[3] = { 0x00, 0x1c, 0xdf }; + static u8 ap5_1[3] = { 0x00, 0x1c, 0xf0 }; + static u8 ap5_2[3] = { 0x00, 0x21, 0x91 }; + static u8 ap5_3[3] = { 0x00, 0x24, 0x01 }; + static u8 ap5_4[3] = { 0x00, 0x15, 0xe9 }; + static u8 ap5_5[3] = { 0x00, 0x17, 0x9A }; + static u8 ap5_6[3] = { 0x00, 0x18, 0xE7 }; + static u8 ap6_1[3] = { 0x00, 0x17, 0x94 }; + static u8 ap7_1[3] = { 0x00, 0x14, 0xa4 }; + + if (mac->opmode != NL80211_IFTYPE_STATION) + return; + + if (mac->link_state == MAC80211_NOLINK) { + mac->vendor = PEER_UNKNOWN; + return; + } + + if (mac->cnt_after_linked > 2) + return; + + /* check if this really is a beacon */ + if (!ieee80211_is_beacon(hdr->frame_control)) + return; + + /* min. beacon length + FCS_LEN */ + if (len <= 40 + FCS_LEN) + return; + + /* and only beacons from the associated BSSID, please */ + if (compare_ether_addr(hdr->addr3, rtlpriv->mac80211.bssid)) + return; + + if (rtl_find_221_ie(hw, data, len)) + vendor = mac->vendor; + + if ((memcmp(mac->bssid, ap5_1, 3) == 0) || + (memcmp(mac->bssid, ap5_2, 3) == 0) || + (memcmp(mac->bssid, ap5_3, 3) == 0) || + (memcmp(mac->bssid, ap5_4, 3) == 0) || + (memcmp(mac->bssid, ap5_5, 3) == 0) || + (memcmp(mac->bssid, ap5_6, 3) == 0) || + vendor == PEER_ATH) { + vendor = PEER_ATH; + RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>ath find\n"); + } else if ((memcmp(mac->bssid, ap4_4, 3) == 0) || + (memcmp(mac->bssid, ap4_5, 3) == 0) || + (memcmp(mac->bssid, ap4_1, 3) == 0) || + (memcmp(mac->bssid, ap4_2, 3) == 0) || + (memcmp(mac->bssid, ap4_3, 3) == 0) || + vendor == PEER_RAL) { + RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>ral find\n"); + vendor = PEER_RAL; + } else if (memcmp(mac->bssid, ap6_1, 3) == 0 || + vendor == PEER_CISCO) { + vendor = PEER_CISCO; + RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>cisco find\n"); + } else if ((memcmp(mac->bssid, ap3_1, 3) == 0) || + (memcmp(mac->bssid, ap3_2, 3) == 0) || + (memcmp(mac->bssid, ap3_3, 3) == 0) || + vendor == PEER_BROAD) { + RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>broad find\n"); + vendor = PEER_BROAD; + } else if (memcmp(mac->bssid, ap7_1, 3) == 0 || + vendor == PEER_MARV) { + vendor = PEER_MARV; + RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>marv find\n"); + } + + mac->vendor = vendor; +} + +/********************************************************* + * + * sysfs functions + * + *********************************************************/ +static ssize_t rtl_show_debug_level(struct device *d, + struct device_attribute *attr, char *buf) +{ + struct ieee80211_hw *hw = dev_get_drvdata(d); + struct rtl_priv *rtlpriv = rtl_priv(hw); + + return sprintf(buf, "0x%08X\n", rtlpriv->dbg.global_debuglevel); +} + +static ssize_t rtl_store_debug_level(struct device *d, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct ieee80211_hw *hw = dev_get_drvdata(d); + struct rtl_priv *rtlpriv = rtl_priv(hw); + unsigned long val; + int ret; + + ret = strict_strtoul(buf, 0, &val); + if (ret) { + printk(KERN_DEBUG "%s is not in hex or decimal form.\n", buf); + } else { + rtlpriv->dbg.global_debuglevel = val; + printk(KERN_DEBUG "debuglevel:%x\n", + rtlpriv->dbg.global_debuglevel); + } + + return strnlen(buf, count); +} + +static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO, + rtl_show_debug_level, rtl_store_debug_level); + +static struct attribute *rtl_sysfs_entries[] = { + + &dev_attr_debug_level.attr, + + NULL +}; + +/* + * "name" is folder name witch will be + * put in device directory like : + * sys/devices/pci0000:00/0000:00:1c.4/ + * 0000:06:00.0/rtl_sysfs + */ +struct attribute_group rtl_attribute_group = { + .name = "rtlsysfs", + .attrs = rtl_sysfs_entries, +}; + +MODULE_AUTHOR("lizhaoming <chaoming_li@realsil.com.cn>"); +MODULE_AUTHOR("Realtek WlanFAE <wlanfae@realtek.com>"); +MODULE_AUTHOR("Larry Finger <Larry.FInger@lwfinger.net>"); +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("Realtek 802.11n PCI wireless core"); + +static int __init rtl_core_module_init(void) +{ + if (rtl_rate_control_register()) + pr_err("Unable to register rtl_rc, use default RC !!\n"); + + return 0; +} + +static void __exit rtl_core_module_exit(void) +{ + /*RC*/ + rtl_rate_control_unregister(); +} + +module_init(rtl_core_module_init); +module_exit(rtl_core_module_exit); |