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authorGertjan van Wingerde <gwingerde@gmail.com>2011-04-18 15:33:41 +0200
committerJohn W. Linville <linville@tuxdriver.com>2011-04-19 15:39:56 -0400
commit46a01ec00d05581c5bd0c37e680d5b37af4953b4 (patch)
treef5bca6d09ed4cb90f06e171b749356be691cbae6 /drivers/net/wireless/rt2x00/rt2x00ht.c
parentea81966ccc2edd324c1fa382260a62a4400a032a (diff)
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rt2x00: Merge rt2x00ht.c contents in other files.
The two functions that are in rt2x00ht.c can be much better placed closer to the places where the call-sites of these functions are (one in rt2x00config.c and one in rt2x00queue.c) allowing us to make these functions static. Also, conditional compilations doesn't seem to be necessary anymore as 802.11n support is quite common nowadays. This makes the code a bit easier readable and searchable. Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/rt2x00/rt2x00ht.c')
-rw-r--r--drivers/net/wireless/rt2x00/rt2x00ht.c137
1 files changed, 0 insertions, 137 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2x00ht.c b/drivers/net/wireless/rt2x00/rt2x00ht.c
deleted file mode 100644
index a30f68c..0000000
--- a/drivers/net/wireless/rt2x00/rt2x00ht.c
+++ /dev/null
@@ -1,137 +0,0 @@
-/*
- Copyright (C) 2004 - 2009 Ivo van Doorn <IvDoorn@gmail.com>
- <http://rt2x00.serialmonkey.com>
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- 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.,
- 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- */
-
-/*
- Module: rt2x00lib
- Abstract: rt2x00 HT specific routines.
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-
-#include "rt2x00.h"
-#include "rt2x00lib.h"
-
-void rt2x00ht_create_tx_descriptor(struct queue_entry *entry,
- struct txentry_desc *txdesc,
- const struct rt2x00_rate *hwrate)
-{
- struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(entry->skb);
- struct ieee80211_tx_rate *txrate = &tx_info->control.rates[0];
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)entry->skb->data;
-
- if (tx_info->control.sta)
- txdesc->u.ht.mpdu_density =
- tx_info->control.sta->ht_cap.ampdu_density;
-
- txdesc->u.ht.ba_size = 7; /* FIXME: What value is needed? */
-
- /*
- * Only one STBC stream is supported for now.
- */
- if (tx_info->flags & IEEE80211_TX_CTL_STBC)
- txdesc->u.ht.stbc = 1;
-
- /*
- * If IEEE80211_TX_RC_MCS is set txrate->idx just contains the
- * mcs rate to be used
- */
- if (txrate->flags & IEEE80211_TX_RC_MCS) {
- txdesc->u.ht.mcs = txrate->idx;
-
- /*
- * MIMO PS should be set to 1 for STA's using dynamic SM PS
- * when using more then one tx stream (>MCS7).
- */
- if (tx_info->control.sta && txdesc->u.ht.mcs > 7 &&
- ((tx_info->control.sta->ht_cap.cap &
- IEEE80211_HT_CAP_SM_PS) >>
- IEEE80211_HT_CAP_SM_PS_SHIFT) ==
- WLAN_HT_CAP_SM_PS_DYNAMIC)
- __set_bit(ENTRY_TXD_HT_MIMO_PS, &txdesc->flags);
- } else {
- txdesc->u.ht.mcs = rt2x00_get_rate_mcs(hwrate->mcs);
- if (txrate->flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)
- txdesc->u.ht.mcs |= 0x08;
- }
-
- /*
- * This frame is eligible for an AMPDU, however, don't aggregate
- * frames that are intended to probe a specific tx rate.
- */
- if (tx_info->flags & IEEE80211_TX_CTL_AMPDU &&
- !(tx_info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE))
- __set_bit(ENTRY_TXD_HT_AMPDU, &txdesc->flags);
-
- /*
- * Set 40Mhz mode if necessary (for legacy rates this will
- * duplicate the frame to both channels).
- */
- if (txrate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH ||
- txrate->flags & IEEE80211_TX_RC_DUP_DATA)
- __set_bit(ENTRY_TXD_HT_BW_40, &txdesc->flags);
- if (txrate->flags & IEEE80211_TX_RC_SHORT_GI)
- __set_bit(ENTRY_TXD_HT_SHORT_GI, &txdesc->flags);
-
- /*
- * Determine IFS values
- * - Use TXOP_BACKOFF for management frames except beacons
- * - Use TXOP_SIFS for fragment bursts
- * - Use TXOP_HTTXOP for everything else
- *
- * Note: rt2800 devices won't use CTS protection (if used)
- * for frames not transmitted with TXOP_HTTXOP
- */
- if (ieee80211_is_mgmt(hdr->frame_control) &&
- !ieee80211_is_beacon(hdr->frame_control))
- txdesc->u.ht.txop = TXOP_BACKOFF;
- else if (!(tx_info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT))
- txdesc->u.ht.txop = TXOP_SIFS;
- else
- txdesc->u.ht.txop = TXOP_HTTXOP;
-}
-
-u16 rt2x00ht_center_channel(struct rt2x00_dev *rt2x00dev,
- struct ieee80211_conf *conf)
-{
- struct hw_mode_spec *spec = &rt2x00dev->spec;
- int center_channel;
- u16 i;
-
- /*
- * Initialize center channel to current channel.
- */
- center_channel = spec->channels[conf->channel->hw_value].channel;
-
- /*
- * Adjust center channel to HT40+ and HT40- operation.
- */
- if (conf_is_ht40_plus(conf))
- center_channel += 2;
- else if (conf_is_ht40_minus(conf))
- center_channel -= (center_channel == 14) ? 1 : 2;
-
- for (i = 0; i < spec->num_channels; i++)
- if (spec->channels[i].channel == center_channel)
- return i;
-
- WARN_ON(1);
- return conf->channel->hw_value;
-}