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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-05-01 10:15:42 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-05-01 10:15:42 +0200
commitef4a0c3173736a957d1495e9a706d7e7e3334613 (patch)
treea0711ca812cb14972b4b767711bf483789152c92 /drivers/staging/rtlwifi/rc.c
parent39e8046240e2b1a4c2e431e08a3356abce93cf35 (diff)
downloadlinux-ef4a0c3173736a957d1495e9a706d7e7e3334613.tar.gz
staging: rtlwifi: delete the staging driver
A "real" driver for this hardware is now in the wireless-drivers-next tree, to be merged in the next major kernel release, so this staging driver can now be deleted as it is not needed anymore. Note, 2 .h files remain for this driver, as they are referenced in a separate staging driver. That mess will be cleaned up in a follow-on patch. Cc: Ping-Ke Shih <pkshih@realtek.com> Cc: Tzu-En Huang <tehuang@realtek.com> Cc: Yan-Hsuan Chuang <yhchuang@realtek.com> Cc: Stanislaw Gruszka <sgruszka@redhat.com> Cc: Brian Norris <briannorris@chromium.org> Cc: Kalle Valo <kvalo@codeaurora.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/rtlwifi/rc.c')
-rw-r--r--drivers/staging/rtlwifi/rc.c309
1 files changed, 0 insertions, 309 deletions
diff --git a/drivers/staging/rtlwifi/rc.c b/drivers/staging/rtlwifi/rc.c
deleted file mode 100644
index 3ebfc67ee345..000000000000
--- a/drivers/staging/rtlwifi/rc.c
+++ /dev/null
@@ -1,309 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/******************************************************************************
- *
- * Copyright(c) 2009-2012 Realtek Corporation.
- *
- * 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 "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;
- u16 wireless_mode = 0;
- u8 nss; /* NSS -1 */
-
- if (get_rf_type(rtlphy) >= RF_4T4R)
- nss = 3;
- else if (get_rf_type(rtlphy) >= RF_3T3R)
- nss = 2;
- else if (get_rf_type(rtlphy) >= RF_2T2R)
- nss = 1;
- else
- nss = 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;
- }
- 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 (nss == 0)
- return N_MODE_MCS7_RIX;
- else
- return N_MODE_MCS15_RIX;
- } else if (wireless_mode == WIRELESS_MODE_AC_24G) {
- if (sta->bandwidth == IEEE80211_STA_RX_BW_20)
- return AC_MODE_MCS8_RIX | (nss << 4);
- else
- return AC_MODE_MCS9_RIX | (nss << 4);
- }
- return 0;
- }
- if (wireless_mode == WIRELESS_MODE_A) {
- return A_MODE_MAX_RIX;
- } else if (wireless_mode == WIRELESS_MODE_N_5G) {
- if (nss == 0)
- return N_MODE_MCS7_RIX;
- else
- return N_MODE_MCS15_RIX;
- } else if (wireless_mode == WIRELESS_MODE_AC_5G) {
- if (sta->bandwidth == IEEE80211_STA_RX_BW_20)
- return AC_MODE_MCS8_RIX | (nss << 4);
- else
- return AC_MODE_MCS9_RIX | (nss << 4);
- }
- 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, s8 rix, int rtsctsenable,
- bool not_data)
-{
- struct rtl_mac *mac = rtl_mac(rtlpriv);
- struct rtl_sta_info *sta_entry = NULL;
- u16 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 ||
- rtlpriv->rtlhal.hw_type == HARDWARE_TYPE_RTL8822BE) &&
- wireless_mode == WIRELESS_MODE_AC_5G)
- rate->idx |= 0x10;/*2NSS for 8812AE, 8822BE*/
-
- 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_80)
- rate->flags |= IEEE80211_TX_RC_80_MHZ_WIDTH;
- else if (mac->bw_40)
- rate->flags |= IEEE80211_TX_RC_40_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;
- if (sta && sta->vht_cap.vht_supported &&
- (wireless_mode == WIRELESS_MODE_AC_5G ||
- wireless_mode == WIRELESS_MODE_AC_24G ||
- wireless_mode == WIRELESS_MODE_AC_ONLY))
- rate->flags |= IEEE80211_TX_RC_VHT_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)
-{
-}
-
-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(*rate_priv), gfp);
- if (!rate_priv)
- 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 const 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);
-}