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-rw-r--r--drivers/net/wireless/rt2x00/Kconfig5
-rw-r--r--drivers/net/wireless/rt2x00/Makefile1
-rw-r--r--drivers/net/wireless/rt2x00/rt2x00config.c28
-rw-r--r--drivers/net/wireless/rt2x00/rt2x00ht.c137
-rw-r--r--drivers/net/wireless/rt2x00/rt2x00lib.h24
-rw-r--r--drivers/net/wireless/rt2x00/rt2x00queue.c81
6 files changed, 108 insertions, 168 deletions
diff --git a/drivers/net/wireless/rt2x00/Kconfig b/drivers/net/wireless/rt2x00/Kconfig
index d7e27b348363..c45773108283 100644
--- a/drivers/net/wireless/rt2x00/Kconfig
+++ b/drivers/net/wireless/rt2x00/Kconfig
@@ -59,7 +59,6 @@ config RT2800PCI
59 select RT2800_LIB 59 select RT2800_LIB
60 select RT2X00_LIB_PCI if PCI 60 select RT2X00_LIB_PCI if PCI
61 select RT2X00_LIB_SOC if RALINK_RT288X || RALINK_RT305X 61 select RT2X00_LIB_SOC if RALINK_RT288X || RALINK_RT305X
62 select RT2X00_LIB_HT
63 select RT2X00_LIB_FIRMWARE 62 select RT2X00_LIB_FIRMWARE
64 select RT2X00_LIB_CRYPTO 63 select RT2X00_LIB_CRYPTO
65 select CRC_CCITT 64 select CRC_CCITT
@@ -133,7 +132,6 @@ config RT2800USB
133 depends on USB 132 depends on USB
134 select RT2800_LIB 133 select RT2800_LIB
135 select RT2X00_LIB_USB 134 select RT2X00_LIB_USB
136 select RT2X00_LIB_HT
137 select RT2X00_LIB_FIRMWARE 135 select RT2X00_LIB_FIRMWARE
138 select RT2X00_LIB_CRYPTO 136 select RT2X00_LIB_CRYPTO
139 select CRC_CCITT 137 select CRC_CCITT
@@ -196,9 +194,6 @@ config RT2X00_LIB_USB
196config RT2X00_LIB 194config RT2X00_LIB
197 tristate 195 tristate
198 196
199config RT2X00_LIB_HT
200 boolean
201
202config RT2X00_LIB_FIRMWARE 197config RT2X00_LIB_FIRMWARE
203 boolean 198 boolean
204 select FW_LOADER 199 select FW_LOADER
diff --git a/drivers/net/wireless/rt2x00/Makefile b/drivers/net/wireless/rt2x00/Makefile
index 971339858297..349d5b8284a4 100644
--- a/drivers/net/wireless/rt2x00/Makefile
+++ b/drivers/net/wireless/rt2x00/Makefile
@@ -7,7 +7,6 @@ rt2x00lib-$(CONFIG_RT2X00_LIB_DEBUGFS) += rt2x00debug.o
7rt2x00lib-$(CONFIG_RT2X00_LIB_CRYPTO) += rt2x00crypto.o 7rt2x00lib-$(CONFIG_RT2X00_LIB_CRYPTO) += rt2x00crypto.o
8rt2x00lib-$(CONFIG_RT2X00_LIB_FIRMWARE) += rt2x00firmware.o 8rt2x00lib-$(CONFIG_RT2X00_LIB_FIRMWARE) += rt2x00firmware.o
9rt2x00lib-$(CONFIG_RT2X00_LIB_LEDS) += rt2x00leds.o 9rt2x00lib-$(CONFIG_RT2X00_LIB_LEDS) += rt2x00leds.o
10rt2x00lib-$(CONFIG_RT2X00_LIB_HT) += rt2x00ht.o
11 10
12obj-$(CONFIG_RT2X00_LIB) += rt2x00lib.o 11obj-$(CONFIG_RT2X00_LIB) += rt2x00lib.o
13obj-$(CONFIG_RT2X00_LIB_PCI) += rt2x00pci.o 12obj-$(CONFIG_RT2X00_LIB_PCI) += rt2x00pci.o
diff --git a/drivers/net/wireless/rt2x00/rt2x00config.c b/drivers/net/wireless/rt2x00/rt2x00config.c
index e225a66f59a0..f70a2b45d430 100644
--- a/drivers/net/wireless/rt2x00/rt2x00config.c
+++ b/drivers/net/wireless/rt2x00/rt2x00config.c
@@ -163,6 +163,34 @@ void rt2x00lib_config_antenna(struct rt2x00_dev *rt2x00dev,
163 rt2x00queue_start_queue(rt2x00dev->rx); 163 rt2x00queue_start_queue(rt2x00dev->rx);
164} 164}
165 165
166static u16 rt2x00ht_center_channel(struct rt2x00_dev *rt2x00dev,
167 struct ieee80211_conf *conf)
168{
169 struct hw_mode_spec *spec = &rt2x00dev->spec;
170 int center_channel;
171 u16 i;
172
173 /*
174 * Initialize center channel to current channel.
175 */
176 center_channel = spec->channels[conf->channel->hw_value].channel;
177
178 /*
179 * Adjust center channel to HT40+ and HT40- operation.
180 */
181 if (conf_is_ht40_plus(conf))
182 center_channel += 2;
183 else if (conf_is_ht40_minus(conf))
184 center_channel -= (center_channel == 14) ? 1 : 2;
185
186 for (i = 0; i < spec->num_channels; i++)
187 if (spec->channels[i].channel == center_channel)
188 return i;
189
190 WARN_ON(1);
191 return conf->channel->hw_value;
192}
193
166void rt2x00lib_config(struct rt2x00_dev *rt2x00dev, 194void rt2x00lib_config(struct rt2x00_dev *rt2x00dev,
167 struct ieee80211_conf *conf, 195 struct ieee80211_conf *conf,
168 unsigned int ieee80211_flags) 196 unsigned int ieee80211_flags)
diff --git a/drivers/net/wireless/rt2x00/rt2x00ht.c b/drivers/net/wireless/rt2x00/rt2x00ht.c
deleted file mode 100644
index a30f68c7fd7e..000000000000
--- a/drivers/net/wireless/rt2x00/rt2x00ht.c
+++ /dev/null
@@ -1,137 +0,0 @@
1/*
2 Copyright (C) 2004 - 2009 Ivo van Doorn <IvDoorn@gmail.com>
3 <http://rt2x00.serialmonkey.com>
4
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
9
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the
17 Free Software Foundation, Inc.,
18 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19 */
20
21/*
22 Module: rt2x00lib
23 Abstract: rt2x00 HT specific routines.
24 */
25
26#include <linux/kernel.h>
27#include <linux/module.h>
28
29#include "rt2x00.h"
30#include "rt2x00lib.h"
31
32void rt2x00ht_create_tx_descriptor(struct queue_entry *entry,
33 struct txentry_desc *txdesc,
34 const struct rt2x00_rate *hwrate)
35{
36 struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(entry->skb);
37 struct ieee80211_tx_rate *txrate = &tx_info->control.rates[0];
38 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)entry->skb->data;
39
40 if (tx_info->control.sta)
41 txdesc->u.ht.mpdu_density =
42 tx_info->control.sta->ht_cap.ampdu_density;
43
44 txdesc->u.ht.ba_size = 7; /* FIXME: What value is needed? */
45
46 /*
47 * Only one STBC stream is supported for now.
48 */
49 if (tx_info->flags & IEEE80211_TX_CTL_STBC)
50 txdesc->u.ht.stbc = 1;
51
52 /*
53 * If IEEE80211_TX_RC_MCS is set txrate->idx just contains the
54 * mcs rate to be used
55 */
56 if (txrate->flags & IEEE80211_TX_RC_MCS) {
57 txdesc->u.ht.mcs = txrate->idx;
58
59 /*
60 * MIMO PS should be set to 1 for STA's using dynamic SM PS
61 * when using more then one tx stream (>MCS7).
62 */
63 if (tx_info->control.sta && txdesc->u.ht.mcs > 7 &&
64 ((tx_info->control.sta->ht_cap.cap &
65 IEEE80211_HT_CAP_SM_PS) >>
66 IEEE80211_HT_CAP_SM_PS_SHIFT) ==
67 WLAN_HT_CAP_SM_PS_DYNAMIC)
68 __set_bit(ENTRY_TXD_HT_MIMO_PS, &txdesc->flags);
69 } else {
70 txdesc->u.ht.mcs = rt2x00_get_rate_mcs(hwrate->mcs);
71 if (txrate->flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)
72 txdesc->u.ht.mcs |= 0x08;
73 }
74
75 /*
76 * This frame is eligible for an AMPDU, however, don't aggregate
77 * frames that are intended to probe a specific tx rate.
78 */
79 if (tx_info->flags & IEEE80211_TX_CTL_AMPDU &&
80 !(tx_info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE))
81 __set_bit(ENTRY_TXD_HT_AMPDU, &txdesc->flags);
82
83 /*
84 * Set 40Mhz mode if necessary (for legacy rates this will
85 * duplicate the frame to both channels).
86 */
87 if (txrate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH ||
88 txrate->flags & IEEE80211_TX_RC_DUP_DATA)
89 __set_bit(ENTRY_TXD_HT_BW_40, &txdesc->flags);
90 if (txrate->flags & IEEE80211_TX_RC_SHORT_GI)
91 __set_bit(ENTRY_TXD_HT_SHORT_GI, &txdesc->flags);
92
93 /*
94 * Determine IFS values
95 * - Use TXOP_BACKOFF for management frames except beacons
96 * - Use TXOP_SIFS for fragment bursts
97 * - Use TXOP_HTTXOP for everything else
98 *
99 * Note: rt2800 devices won't use CTS protection (if used)
100 * for frames not transmitted with TXOP_HTTXOP
101 */
102 if (ieee80211_is_mgmt(hdr->frame_control) &&
103 !ieee80211_is_beacon(hdr->frame_control))
104 txdesc->u.ht.txop = TXOP_BACKOFF;
105 else if (!(tx_info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT))
106 txdesc->u.ht.txop = TXOP_SIFS;
107 else
108 txdesc->u.ht.txop = TXOP_HTTXOP;
109}
110
111u16 rt2x00ht_center_channel(struct rt2x00_dev *rt2x00dev,
112 struct ieee80211_conf *conf)
113{
114 struct hw_mode_spec *spec = &rt2x00dev->spec;
115 int center_channel;
116 u16 i;
117
118 /*
119 * Initialize center channel to current channel.
120 */
121 center_channel = spec->channels[conf->channel->hw_value].channel;
122
123 /*
124 * Adjust center channel to HT40+ and HT40- operation.
125 */
126 if (conf_is_ht40_plus(conf))
127 center_channel += 2;
128 else if (conf_is_ht40_minus(conf))
129 center_channel -= (center_channel == 14) ? 1 : 2;
130
131 for (i = 0; i < spec->num_channels; i++)
132 if (spec->channels[i].channel == center_channel)
133 return i;
134
135 WARN_ON(1);
136 return conf->channel->hw_value;
137}
diff --git a/drivers/net/wireless/rt2x00/rt2x00lib.h b/drivers/net/wireless/rt2x00/rt2x00lib.h
index 57ede6ccf40c..322cc4f3de5d 100644
--- a/drivers/net/wireless/rt2x00/rt2x00lib.h
+++ b/drivers/net/wireless/rt2x00/rt2x00lib.h
@@ -388,30 +388,6 @@ static inline void rt2x00crypto_rx_insert_iv(struct sk_buff *skb,
388#endif /* CONFIG_RT2X00_LIB_CRYPTO */ 388#endif /* CONFIG_RT2X00_LIB_CRYPTO */
389 389
390/* 390/*
391 * HT handlers.
392 */
393#ifdef CONFIG_RT2X00_LIB_HT
394void rt2x00ht_create_tx_descriptor(struct queue_entry *entry,
395 struct txentry_desc *txdesc,
396 const struct rt2x00_rate *hwrate);
397
398u16 rt2x00ht_center_channel(struct rt2x00_dev *rt2x00dev,
399 struct ieee80211_conf *conf);
400#else
401static inline void rt2x00ht_create_tx_descriptor(struct queue_entry *entry,
402 struct txentry_desc *txdesc,
403 const struct rt2x00_rate *hwrate)
404{
405}
406
407static inline u16 rt2x00ht_center_channel(struct rt2x00_dev *rt2x00dev,
408 struct ieee80211_conf *conf)
409{
410 return conf->channel->hw_value;
411}
412#endif /* CONFIG_RT2X00_LIB_HT */
413
414/*
415 * RFkill handlers. 391 * RFkill handlers.
416 */ 392 */
417static inline void rt2x00rfkill_register(struct rt2x00_dev *rt2x00dev) 393static inline void rt2x00rfkill_register(struct rt2x00_dev *rt2x00dev)
diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c
index 0d79278a0a19..56f9d0df9c61 100644
--- a/drivers/net/wireless/rt2x00/rt2x00queue.c
+++ b/drivers/net/wireless/rt2x00/rt2x00queue.c
@@ -302,6 +302,85 @@ static void rt2x00queue_create_tx_descriptor_plcp(struct queue_entry *entry,
302 } 302 }
303} 303}
304 304
305static void rt2x00queue_create_tx_descriptor_ht(struct queue_entry *entry,
306 struct txentry_desc *txdesc,
307 const struct rt2x00_rate *hwrate)
308{
309 struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(entry->skb);
310 struct ieee80211_tx_rate *txrate = &tx_info->control.rates[0];
311 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)entry->skb->data;
312
313 if (tx_info->control.sta)
314 txdesc->u.ht.mpdu_density =
315 tx_info->control.sta->ht_cap.ampdu_density;
316
317 txdesc->u.ht.ba_size = 7; /* FIXME: What value is needed? */
318
319 /*
320 * Only one STBC stream is supported for now.
321 */
322 if (tx_info->flags & IEEE80211_TX_CTL_STBC)
323 txdesc->u.ht.stbc = 1;
324
325 /*
326 * If IEEE80211_TX_RC_MCS is set txrate->idx just contains the
327 * mcs rate to be used
328 */
329 if (txrate->flags & IEEE80211_TX_RC_MCS) {
330 txdesc->u.ht.mcs = txrate->idx;
331
332 /*
333 * MIMO PS should be set to 1 for STA's using dynamic SM PS
334 * when using more then one tx stream (>MCS7).
335 */
336 if (tx_info->control.sta && txdesc->u.ht.mcs > 7 &&
337 ((tx_info->control.sta->ht_cap.cap &
338 IEEE80211_HT_CAP_SM_PS) >>
339 IEEE80211_HT_CAP_SM_PS_SHIFT) ==
340 WLAN_HT_CAP_SM_PS_DYNAMIC)
341 __set_bit(ENTRY_TXD_HT_MIMO_PS, &txdesc->flags);
342 } else {
343 txdesc->u.ht.mcs = rt2x00_get_rate_mcs(hwrate->mcs);
344 if (txrate->flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)
345 txdesc->u.ht.mcs |= 0x08;
346 }
347
348 /*
349 * This frame is eligible for an AMPDU, however, don't aggregate
350 * frames that are intended to probe a specific tx rate.
351 */
352 if (tx_info->flags & IEEE80211_TX_CTL_AMPDU &&
353 !(tx_info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE))
354 __set_bit(ENTRY_TXD_HT_AMPDU, &txdesc->flags);
355
356 /*
357 * Set 40Mhz mode if necessary (for legacy rates this will
358 * duplicate the frame to both channels).
359 */
360 if (txrate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH ||
361 txrate->flags & IEEE80211_TX_RC_DUP_DATA)
362 __set_bit(ENTRY_TXD_HT_BW_40, &txdesc->flags);
363 if (txrate->flags & IEEE80211_TX_RC_SHORT_GI)
364 __set_bit(ENTRY_TXD_HT_SHORT_GI, &txdesc->flags);
365
366 /*
367 * Determine IFS values
368 * - Use TXOP_BACKOFF for management frames except beacons
369 * - Use TXOP_SIFS for fragment bursts
370 * - Use TXOP_HTTXOP for everything else
371 *
372 * Note: rt2800 devices won't use CTS protection (if used)
373 * for frames not transmitted with TXOP_HTTXOP
374 */
375 if (ieee80211_is_mgmt(hdr->frame_control) &&
376 !ieee80211_is_beacon(hdr->frame_control))
377 txdesc->u.ht.txop = TXOP_BACKOFF;
378 else if (!(tx_info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT))
379 txdesc->u.ht.txop = TXOP_SIFS;
380 else
381 txdesc->u.ht.txop = TXOP_HTTXOP;
382}
383
305static void rt2x00queue_create_tx_descriptor(struct queue_entry *entry, 384static void rt2x00queue_create_tx_descriptor(struct queue_entry *entry,
306 struct txentry_desc *txdesc) 385 struct txentry_desc *txdesc)
307{ 386{
@@ -397,7 +476,7 @@ static void rt2x00queue_create_tx_descriptor(struct queue_entry *entry,
397 rt2x00queue_create_tx_descriptor_seq(entry, txdesc); 476 rt2x00queue_create_tx_descriptor_seq(entry, txdesc);
398 477
399 if (test_bit(REQUIRE_HT_TX_DESC, &rt2x00dev->cap_flags)) 478 if (test_bit(REQUIRE_HT_TX_DESC, &rt2x00dev->cap_flags))
400 rt2x00ht_create_tx_descriptor(entry, txdesc, hwrate); 479 rt2x00queue_create_tx_descriptor_ht(entry, txdesc, hwrate);
401 else 480 else
402 rt2x00queue_create_tx_descriptor_plcp(entry, txdesc, hwrate); 481 rt2x00queue_create_tx_descriptor_plcp(entry, txdesc, hwrate);
403} 482}