From b4b7ff4b08e691656c9d77c758fc355833128ac0 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Wed, 20 Jan 2016 14:01:31 -0300 Subject: Linux-libre 4.4-gnu --- drivers/net/wireless/rtlwifi/rc.c | 302 -------------------------------------- 1 file changed, 302 deletions(-) delete mode 100644 drivers/net/wireless/rtlwifi/rc.c (limited to 'drivers/net/wireless/rtlwifi/rc.c') diff --git a/drivers/net/wireless/rtlwifi/rc.c b/drivers/net/wireless/rtlwifi/rc.c deleted file mode 100644 index 74c14ce28..000000000 --- a/drivers/net/wireless/rtlwifi/rc.c +++ /dev/null @@ -1,302 +0,0 @@ -/****************************************************************************** - * - * 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. - * - * The full GNU General Public License is included in this distribution in the - * file called LICENSE. - * - * Contact Information: - * wlanfae - * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park, - * Hsinchu 300, Taiwan. - * - * Larry Finger - * - *****************************************************************************/ - -#include "wifi.h" -#include "base.h" -#include "rc.h" - -/* - *Finds the highest rate index we can use - *if skb is special data like DHCP/EAPOL, we set should - *it to lowest rate CCK_1M, otherwise we set rate to - *highest rate based on wireless mode used for iwconfig - *show Tx rate. - */ -static u8 _rtl_rc_get_highest_rix(struct rtl_priv *rtlpriv, - struct ieee80211_sta *sta, - struct sk_buff *skb, bool not_data) -{ - struct rtl_hal *rtlhal = rtl_hal(rtlpriv); - struct rtl_phy *rtlphy = &(rtlpriv->phy); - struct rtl_sta_info *sta_entry = NULL; - u8 wireless_mode = 0; - - /* - *this rate is no use for true rate, firmware - *will control rate at all it just used for - *1.show in iwconfig in B/G mode - *2.in rtl_get_tcb_desc when we check rate is - * 1M we will not use FW rate but user rate. - */ - - if (sta) { - sta_entry = (struct rtl_sta_info *)sta->drv_priv; - wireless_mode = sta_entry->wireless_mode; - } - - if (rtl_is_special_data(rtlpriv->mac80211.hw, skb, true, false) || - not_data) { - return 0; - } else { - if (rtlhal->current_bandtype == BAND_ON_2_4G) { - if (wireless_mode == WIRELESS_MODE_B) { - return B_MODE_MAX_RIX; - } else if (wireless_mode == WIRELESS_MODE_G) { - return G_MODE_MAX_RIX; - } else if (wireless_mode == WIRELESS_MODE_N_24G) { - if (get_rf_type(rtlphy) != RF_2T2R) - return N_MODE_MCS7_RIX; - else - return N_MODE_MCS15_RIX; - } else if (wireless_mode == WIRELESS_MODE_AC_24G) { - return AC_MODE_MCS9_RIX; - } - return 0; - } else { - if (wireless_mode == WIRELESS_MODE_A) { - return A_MODE_MAX_RIX; - } else if (wireless_mode == WIRELESS_MODE_N_5G) { - if (get_rf_type(rtlphy) != RF_2T2R) - return N_MODE_MCS7_RIX; - else - return N_MODE_MCS15_RIX; - } else if (wireless_mode == WIRELESS_MODE_AC_5G) { - return AC_MODE_MCS9_RIX; - } - return 0; - } - } -} - -static void _rtl_rc_rate_set_series(struct rtl_priv *rtlpriv, - struct ieee80211_sta *sta, - struct ieee80211_tx_rate *rate, - struct ieee80211_tx_rate_control *txrc, - u8 tries, char rix, int rtsctsenable, - bool not_data) -{ - struct rtl_mac *mac = rtl_mac(rtlpriv); - struct rtl_sta_info *sta_entry = NULL; - u8 wireless_mode = 0; - u8 sgi_20 = 0, sgi_40 = 0, sgi_80 = 0; - - if (sta) { - sgi_20 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20; - sgi_40 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40; - sgi_80 = sta->vht_cap.cap & IEEE80211_VHT_CAP_SHORT_GI_80; - sta_entry = (struct rtl_sta_info *)sta->drv_priv; - wireless_mode = sta_entry->wireless_mode; - } - rate->count = tries; - rate->idx = rix >= 0x00 ? rix : 0x00; - if (rtlpriv->rtlhal.hw_type == HARDWARE_TYPE_RTL8812AE && - wireless_mode == WIRELESS_MODE_AC_5G) - rate->idx += 0x10;/*2NSS for 8812AE*/ - - if (!not_data) { - if (txrc->short_preamble) - rate->flags |= IEEE80211_TX_RC_USE_SHORT_PREAMBLE; - if (mac->opmode == NL80211_IFTYPE_AP || - mac->opmode == NL80211_IFTYPE_ADHOC) { - if (sta && (sta->ht_cap.cap & - IEEE80211_HT_CAP_SUP_WIDTH_20_40)) - rate->flags |= IEEE80211_TX_RC_40_MHZ_WIDTH; - if (sta && (sta->vht_cap.vht_supported)) - rate->flags |= IEEE80211_TX_RC_80_MHZ_WIDTH; - } else { - if (mac->bw_40) - rate->flags |= IEEE80211_TX_RC_40_MHZ_WIDTH; - if (mac->bw_80) - rate->flags |= IEEE80211_TX_RC_80_MHZ_WIDTH; - } - - if (sgi_20 || sgi_40 || sgi_80) - rate->flags |= IEEE80211_TX_RC_SHORT_GI; - if (sta && sta->ht_cap.ht_supported && - ((wireless_mode == WIRELESS_MODE_N_5G) || - (wireless_mode == WIRELESS_MODE_N_24G))) - rate->flags |= IEEE80211_TX_RC_MCS; - } -} - -static void rtl_get_rate(void *ppriv, struct ieee80211_sta *sta, - void *priv_sta, - struct ieee80211_tx_rate_control *txrc) -{ - struct rtl_priv *rtlpriv = ppriv; - struct sk_buff *skb = txrc->skb; - struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb); - struct ieee80211_tx_rate *rates = tx_info->control.rates; - __le16 fc = rtl_get_fc(skb); - u8 try_per_rate, i, rix; - bool not_data = !ieee80211_is_data(fc); - - if (rate_control_send_low(sta, priv_sta, txrc)) - return; - - rix = _rtl_rc_get_highest_rix(rtlpriv, sta, skb, not_data); - try_per_rate = 1; - _rtl_rc_rate_set_series(rtlpriv, sta, &rates[0], txrc, - try_per_rate, rix, 1, not_data); - - if (!not_data) { - for (i = 1; i < 4; i++) - _rtl_rc_rate_set_series(rtlpriv, sta, &rates[i], - txrc, i, (rix - i), 1, - not_data); - } -} - -static bool _rtl_tx_aggr_check(struct rtl_priv *rtlpriv, - struct rtl_sta_info *sta_entry, u16 tid) -{ - struct rtl_mac *mac = rtl_mac(rtlpriv); - - if (mac->act_scanning) - return false; - - if (mac->opmode == NL80211_IFTYPE_STATION && - mac->cnt_after_linked < 3) - return false; - - if (sta_entry->tids[tid].agg.agg_state == RTL_AGG_STOP) - return true; - - return false; -} - -/*mac80211 Rate Control callbacks*/ -static void rtl_tx_status(void *ppriv, - struct ieee80211_supported_band *sband, - struct ieee80211_sta *sta, void *priv_sta, - struct sk_buff *skb) -{ - struct rtl_priv *rtlpriv = ppriv; - struct rtl_mac *mac = rtl_mac(rtlpriv); - struct ieee80211_hdr *hdr = rtl_get_hdr(skb); - __le16 fc = rtl_get_fc(skb); - struct rtl_sta_info *sta_entry; - - if (!priv_sta || !ieee80211_is_data(fc)) - return; - - if (rtl_is_special_data(mac->hw, skb, true, true)) - return; - - if (is_multicast_ether_addr(ieee80211_get_DA(hdr)) || - is_broadcast_ether_addr(ieee80211_get_DA(hdr))) - return; - - if (sta) { - /* Check if aggregation has to be enabled for this tid */ - sta_entry = (struct rtl_sta_info *) sta->drv_priv; - if ((sta->ht_cap.ht_supported) && - !(skb->protocol == cpu_to_be16(ETH_P_PAE))) { - if (ieee80211_is_data_qos(fc)) { - u8 tid = rtl_get_tid(skb); - if (_rtl_tx_aggr_check(rtlpriv, sta_entry, - tid)) { - sta_entry->tids[tid].agg.agg_state = - RTL_AGG_PROGRESS; - ieee80211_start_tx_ba_session(sta, tid, - 5000); - } - } - } - } -} - -static void rtl_rate_init(void *ppriv, - struct ieee80211_supported_band *sband, - struct cfg80211_chan_def *chandef, - struct ieee80211_sta *sta, void *priv_sta) -{ -} - -static void rtl_rate_update(void *ppriv, - struct ieee80211_supported_band *sband, - struct cfg80211_chan_def *chandef, - struct ieee80211_sta *sta, void *priv_sta, - u32 changed) -{ -} - -static void *rtl_rate_alloc(struct ieee80211_hw *hw, struct dentry *debugfsdir) -{ - struct rtl_priv *rtlpriv = rtl_priv(hw); - return rtlpriv; -} - -static void rtl_rate_free(void *rtlpriv) -{ - return; -} - -static void *rtl_rate_alloc_sta(void *ppriv, - struct ieee80211_sta *sta, gfp_t gfp) -{ - struct rtl_priv *rtlpriv = ppriv; - struct rtl_rate_priv *rate_priv; - - rate_priv = kzalloc(sizeof(struct rtl_rate_priv), gfp); - if (!rate_priv) { - RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, - "Unable to allocate private rc structure\n"); - return NULL; - } - - rtlpriv->rate_priv = rate_priv; - - return rate_priv; -} - -static void rtl_rate_free_sta(void *rtlpriv, - struct ieee80211_sta *sta, void *priv_sta) -{ - struct rtl_rate_priv *rate_priv = priv_sta; - kfree(rate_priv); -} - -static struct rate_control_ops rtl_rate_ops = { - .name = "rtl_rc", - .alloc = rtl_rate_alloc, - .free = rtl_rate_free, - .alloc_sta = rtl_rate_alloc_sta, - .free_sta = rtl_rate_free_sta, - .rate_init = rtl_rate_init, - .rate_update = rtl_rate_update, - .tx_status = rtl_tx_status, - .get_rate = rtl_get_rate, -}; - -int rtl_rate_control_register(void) -{ - return ieee80211_rate_control_register(&rtl_rate_ops); -} - -void rtl_rate_control_unregister(void) -{ - ieee80211_rate_control_unregister(&rtl_rate_ops); -} -- cgit v1.2.3-54-g00ecf