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Viewing changes to drivers/net/wireless/rtlwifi/core.c

  • Committer: Package Import Robot
  • Author(s): Alessio Igor Bogani
  • Date: 2011-10-26 11:13:05 UTC
  • Revision ID: package-import@ubuntu.com-20111026111305-tz023xykf0i6eosh
Tags: upstream-3.2.0
Import upstream version 3.2.0

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drivers/net/wireless/rtlwifi/core.c
 
1
/******************************************************************************
 
2
 *
 
3
 * Copyright(c) 2009-2010  Realtek Corporation.
 
4
 *
 
5
 * This program is free software; you can redistribute it and/or modify it
 
6
 * under the terms of version 2 of the GNU General Public License as
 
7
 * published by the Free Software Foundation.
 
8
 *
 
9
 * This program is distributed in the hope that it will be useful, but WITHOUT
 
10
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 
11
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 
12
 * more details.
 
13
 *
 
14
 * You should have received a copy of the GNU General Public License along with
 
15
 * this program; if not, write to the Free Software Foundation, Inc.,
 
16
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
 
17
 *
 
18
 * The full GNU General Public License is included in this distribution in the
 
19
 * file called LICENSE.
 
20
 *
 
21
 * Contact Information:
 
22
 * wlanfae <wlanfae@realtek.com>
 
23
 * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
 
24
 * Hsinchu 300, Taiwan.
 
25
 *
 
26
 * Larry Finger <Larry.Finger@lwfinger.net>
 
27
 *
 
28
 *****************************************************************************/
 
29
 
 
30
#include "wifi.h"
 
31
#include "core.h"
 
32
#include "cam.h"
 
33
#include "base.h"
 
34
#include "ps.h"
 
35
 
 
36
/*mutex for start & stop is must here. */
 
37
static int rtl_op_start(struct ieee80211_hw *hw)
 
38
{
 
39
        int err;
 
40
        struct rtl_priv *rtlpriv = rtl_priv(hw);
 
41
        struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
 
42
 
 
43
        if (!is_hal_stop(rtlhal))
 
44
                return 0;
 
45
        if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
 
46
                return 0;
 
47
        mutex_lock(&rtlpriv->locks.conf_mutex);
 
48
        err = rtlpriv->intf_ops->adapter_start(hw);
 
49
        if (!err)
 
50
                rtl_watch_dog_timer_callback((unsigned long)hw);
 
51
        mutex_unlock(&rtlpriv->locks.conf_mutex);
 
52
        return err;
 
53
}
 
54
 
 
55
static void rtl_op_stop(struct ieee80211_hw *hw)
 
56
{
 
57
        struct rtl_priv *rtlpriv = rtl_priv(hw);
 
58
        struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 
59
        struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
 
60
        struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
 
61
 
 
62
        if (is_hal_stop(rtlhal))
 
63
                return;
 
64
 
 
65
        if (unlikely(ppsc->rfpwr_state == ERFOFF)) {
 
66
                rtl_ips_nic_on(hw);
 
67
                mdelay(1);
 
68
        }
 
69
 
 
70
        mutex_lock(&rtlpriv->locks.conf_mutex);
 
71
 
 
72
        mac->link_state = MAC80211_NOLINK;
 
73
        memset(mac->bssid, 0, 6);
 
74
        mac->vendor = PEER_UNKNOWN;
 
75
 
 
76
        /*reset sec info */
 
77
        rtl_cam_reset_sec_info(hw);
 
78
 
 
79
        rtl_deinit_deferred_work(hw);
 
80
        rtlpriv->intf_ops->adapter_stop(hw);
 
81
 
 
82
        mutex_unlock(&rtlpriv->locks.conf_mutex);
 
83
}
 
84
 
 
85
static void rtl_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
 
86
{
 
87
        struct rtl_priv *rtlpriv = rtl_priv(hw);
 
88
        struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
 
89
        struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
 
90
        struct rtl_tcb_desc tcb_desc;
 
91
        memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));
 
92
 
 
93
        if (unlikely(is_hal_stop(rtlhal) || ppsc->rfpwr_state != ERFON))
 
94
                goto err_free;
 
95
 
 
96
        if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
 
97
                goto err_free;
 
98
 
 
99
        if (!rtlpriv->intf_ops->waitq_insert(hw, skb))
 
100
                rtlpriv->intf_ops->adapter_tx(hw, skb, &tcb_desc);
 
101
 
 
102
        return;
 
103
 
 
104
err_free:
 
105
        dev_kfree_skb_any(skb);
 
106
}
 
107
 
 
108
static int rtl_op_add_interface(struct ieee80211_hw *hw,
 
109
                struct ieee80211_vif *vif)
 
110
{
 
111
        struct rtl_priv *rtlpriv = rtl_priv(hw);
 
112
        struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 
113
        int err = 0;
 
114
 
 
115
        if (mac->vif) {
 
116
                RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
 
117
                         ("vif has been set!! mac->vif = 0x%p\n", mac->vif));
 
118
                return -EOPNOTSUPP;
 
119
        }
 
120
 
 
121
        rtl_ips_nic_on(hw);
 
122
 
 
123
        mutex_lock(&rtlpriv->locks.conf_mutex);
 
124
        switch (vif->type) {
 
125
        case NL80211_IFTYPE_STATION:
 
126
                if (mac->beacon_enabled == 1) {
 
127
                        RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 
128
                                 ("NL80211_IFTYPE_STATION\n"));
 
129
                        mac->beacon_enabled = 0;
 
130
                        rtlpriv->cfg->ops->update_interrupt_mask(hw, 0,
 
131
                                        rtlpriv->cfg->maps
 
132
                                        [RTL_IBSS_INT_MASKS]);
 
133
                }
 
134
                break;
 
135
        case NL80211_IFTYPE_ADHOC:
 
136
                RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 
137
                         ("NL80211_IFTYPE_ADHOC\n"));
 
138
 
 
139
                mac->link_state = MAC80211_LINKED;
 
140
                rtlpriv->cfg->ops->set_bcn_reg(hw);
 
141
                if (rtlpriv->rtlhal.current_bandtype == BAND_ON_2_4G)
 
142
                        mac->basic_rates = 0xfff;
 
143
                else
 
144
                        mac->basic_rates = 0xff0;
 
145
                rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_BASIC_RATE,
 
146
                                (u8 *) (&mac->basic_rates));
 
147
 
 
148
                break;
 
149
        case NL80211_IFTYPE_AP:
 
150
                RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 
151
                         ("NL80211_IFTYPE_AP\n"));
 
152
 
 
153
                mac->link_state = MAC80211_LINKED;
 
154
                rtlpriv->cfg->ops->set_bcn_reg(hw);
 
155
                if (rtlpriv->rtlhal.current_bandtype == BAND_ON_2_4G)
 
156
                        mac->basic_rates = 0xfff;
 
157
                else
 
158
                        mac->basic_rates = 0xff0;
 
159
                rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_BASIC_RATE,
 
160
                                (u8 *) (&mac->basic_rates));
 
161
                break;
 
162
        default:
 
163
                RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
 
164
                         ("operation mode %d is not support!\n", vif->type));
 
165
                err = -EOPNOTSUPP;
 
166
                goto out;
 
167
        }
 
168
 
 
169
        mac->vif = vif;
 
170
        mac->opmode = vif->type;
 
171
        rtlpriv->cfg->ops->set_network_type(hw, vif->type);
 
172
        memcpy(mac->mac_addr, vif->addr, ETH_ALEN);
 
173
        rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_ETHER_ADDR, mac->mac_addr);
 
174
 
 
175
out:
 
176
        mutex_unlock(&rtlpriv->locks.conf_mutex);
 
177
        return err;
 
178
}
 
179
 
 
180
static void rtl_op_remove_interface(struct ieee80211_hw *hw,
 
181
                struct ieee80211_vif *vif)
 
182
{
 
183
        struct rtl_priv *rtlpriv = rtl_priv(hw);
 
184
        struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 
185
 
 
186
        mutex_lock(&rtlpriv->locks.conf_mutex);
 
187
 
 
188
        /* Free beacon resources */
 
189
        if ((mac->opmode == NL80211_IFTYPE_AP) ||
 
190
            (mac->opmode == NL80211_IFTYPE_ADHOC) ||
 
191
            (mac->opmode == NL80211_IFTYPE_MESH_POINT)) {
 
192
                if (mac->beacon_enabled == 1) {
 
193
                        mac->beacon_enabled = 0;
 
194
                        rtlpriv->cfg->ops->update_interrupt_mask(hw, 0,
 
195
                                        rtlpriv->cfg->maps
 
196
                                        [RTL_IBSS_INT_MASKS]);
 
197
                }
 
198
        }
 
199
 
 
200
        /*
 
201
         *Note: We assume NL80211_IFTYPE_UNSPECIFIED as
 
202
         *NO LINK for our hardware.
 
203
         */
 
204
        mac->vif = NULL;
 
205
        mac->link_state = MAC80211_NOLINK;
 
206
        memset(mac->bssid, 0, 6);
 
207
        mac->vendor = PEER_UNKNOWN;
 
208
        mac->opmode = NL80211_IFTYPE_UNSPECIFIED;
 
209
        rtlpriv->cfg->ops->set_network_type(hw, mac->opmode);
 
210
        mutex_unlock(&rtlpriv->locks.conf_mutex);
 
211
}
 
212
 
 
213
static int rtl_op_config(struct ieee80211_hw *hw, u32 changed)
 
214
{
 
215
        struct rtl_priv *rtlpriv = rtl_priv(hw);
 
216
        struct rtl_phy *rtlphy = &(rtlpriv->phy);
 
217
        struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 
218
        struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
 
219
        struct ieee80211_conf *conf = &hw->conf;
 
220
 
 
221
        mutex_lock(&rtlpriv->locks.conf_mutex);
 
222
        if (changed & IEEE80211_CONF_CHANGE_LISTEN_INTERVAL) {  /*BIT(2)*/
 
223
                RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 
224
                         ("IEEE80211_CONF_CHANGE_LISTEN_INTERVAL\n"));
 
225
        }
 
226
 
 
227
        /*For IPS */
 
228
        if (changed & IEEE80211_CONF_CHANGE_IDLE) {
 
229
                if (hw->conf.flags & IEEE80211_CONF_IDLE)
 
230
                        rtl_ips_nic_off(hw);
 
231
                else
 
232
                        rtl_ips_nic_on(hw);
 
233
        } else {
 
234
                /*
 
235
                 *although rfoff may not cause by ips, but we will
 
236
                 *check the reason in set_rf_power_state function
 
237
                 */
 
238
                if (unlikely(ppsc->rfpwr_state == ERFOFF))
 
239
                        rtl_ips_nic_on(hw);
 
240
        }
 
241
 
 
242
        /*For LPS */
 
243
        if (changed & IEEE80211_CONF_CHANGE_PS) {
 
244
                cancel_delayed_work(&rtlpriv->works.ps_work);
 
245
                cancel_delayed_work(&rtlpriv->works.ps_rfon_wq);
 
246
                if (conf->flags & IEEE80211_CONF_PS) {
 
247
                        rtlpriv->psc.sw_ps_enabled = true;
 
248
                        /* sleep here is must, or we may recv the beacon and
 
249
                         * cause mac80211 into wrong ps state, this will cause
 
250
                         * power save nullfunc send fail, and further cause
 
251
                         * pkt loss, So sleep must quickly but not immediatly
 
252
                         * because that will cause nullfunc send by mac80211
 
253
                         * fail, and cause pkt loss, we have tested that 5mA
 
254
                         * is worked very well */
 
255
                        if (!rtlpriv->psc.multi_buffered)
 
256
                                queue_delayed_work(rtlpriv->works.rtl_wq,
 
257
                                                &rtlpriv->works.ps_work,
 
258
                                                MSECS(5));
 
259
                } else {
 
260
                        rtl_swlps_rf_awake(hw);
 
261
                        rtlpriv->psc.sw_ps_enabled = false;
 
262
                }
 
263
        }
 
264
 
 
265
        if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS) {
 
266
                RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 
267
                         ("IEEE80211_CONF_CHANGE_RETRY_LIMITS %x\n",
 
268
                          hw->conf.long_frame_max_tx_count));
 
269
                mac->retry_long = hw->conf.long_frame_max_tx_count;
 
270
                mac->retry_short = hw->conf.long_frame_max_tx_count;
 
271
                rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_RETRY_LIMIT,
 
272
                                              (u8 *) (&hw->conf.
 
273
                                                      long_frame_max_tx_count));
 
274
        }
 
275
 
 
276
        if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
 
277
                struct ieee80211_channel *channel = hw->conf.channel;
 
278
                u8 wide_chan = (u8) channel->hw_value;
 
279
 
 
280
                /*
 
281
                 *because we should back channel to
 
282
                 *current_network.chan in in scanning,
 
283
                 *So if set_chan == current_network.chan
 
284
                 *we should set it.
 
285
                 *because mac80211 tell us wrong bw40
 
286
                 *info for cisco1253 bw20, so we modify
 
287
                 *it here based on UPPER & LOWER
 
288
                 */
 
289
                switch (hw->conf.channel_type) {
 
290
                case NL80211_CHAN_HT20:
 
291
                case NL80211_CHAN_NO_HT:
 
292
                        /* SC */
 
293
                        mac->cur_40_prime_sc =
 
294
                                PRIME_CHNL_OFFSET_DONT_CARE;
 
295
                        rtlphy->current_chan_bw = HT_CHANNEL_WIDTH_20;
 
296
                        mac->bw_40 = false;
 
297
                        break;
 
298
                case NL80211_CHAN_HT40MINUS:
 
299
                        /* SC */
 
300
                        mac->cur_40_prime_sc = PRIME_CHNL_OFFSET_UPPER;
 
301
                        rtlphy->current_chan_bw =
 
302
                                HT_CHANNEL_WIDTH_20_40;
 
303
                        mac->bw_40 = true;
 
304
 
 
305
                        /*wide channel */
 
306
                        wide_chan -= 2;
 
307
 
 
308
                        break;
 
309
                case NL80211_CHAN_HT40PLUS:
 
310
                        /* SC */
 
311
                        mac->cur_40_prime_sc = PRIME_CHNL_OFFSET_LOWER;
 
312
                        rtlphy->current_chan_bw =
 
313
                                HT_CHANNEL_WIDTH_20_40;
 
314
                        mac->bw_40 = true;
 
315
 
 
316
                        /*wide channel */
 
317
                        wide_chan += 2;
 
318
 
 
319
                        break;
 
320
                default:
 
321
                        mac->bw_40 = false;
 
322
                        RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
 
323
                                        ("switch case not processed\n"));
 
324
                        break;
 
325
                }
 
326
 
 
327
                if (wide_chan <= 0)
 
328
                        wide_chan = 1;
 
329
 
 
330
                /* In scanning, before we go offchannel we may send a ps=1 null
 
331
                 * to AP, and then we may send a ps = 0 null to AP quickly, but
 
332
                 * first null may have caused AP to put lots of packet to hw tx
 
333
                 * buffer. These packets must be tx'd before we go off channel
 
334
                 * so we must delay more time to let AP flush these packets
 
335
                 * before going offchannel, or dis-association or delete BA will
 
336
                 * happen by AP
 
337
                 */
 
338
                if (rtlpriv->mac80211.offchan_delay) {
 
339
                        rtlpriv->mac80211.offchan_delay = false;
 
340
                        mdelay(50);
 
341
                }
 
342
                rtlphy->current_channel = wide_chan;
 
343
 
 
344
                rtlpriv->cfg->ops->switch_channel(hw);
 
345
                rtlpriv->cfg->ops->set_channel_access(hw);
 
346
                rtlpriv->cfg->ops->set_bw_mode(hw,
 
347
                                               hw->conf.channel_type);
 
348
        }
 
349
 
 
350
        mutex_unlock(&rtlpriv->locks.conf_mutex);
 
351
 
 
352
        return 0;
 
353
}
 
354
 
 
355
static void rtl_op_configure_filter(struct ieee80211_hw *hw,
 
356
                             unsigned int changed_flags,
 
357
                             unsigned int *new_flags, u64 multicast)
 
358
{
 
359
        struct rtl_priv *rtlpriv = rtl_priv(hw);
 
360
        struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 
361
 
 
362
        *new_flags &= RTL_SUPPORTED_FILTERS;
 
363
        if (!changed_flags)
 
364
                return;
 
365
 
 
366
        /*TODO: we disable broadcase now, so enable here */
 
367
        if (changed_flags & FIF_ALLMULTI) {
 
368
                if (*new_flags & FIF_ALLMULTI) {
 
369
                        mac->rx_conf |= rtlpriv->cfg->maps[MAC_RCR_AM] |
 
370
                            rtlpriv->cfg->maps[MAC_RCR_AB];
 
371
                        RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 
372
                                 ("Enable receive multicast frame.\n"));
 
373
                } else {
 
374
                        mac->rx_conf &= ~(rtlpriv->cfg->maps[MAC_RCR_AM] |
 
375
                                          rtlpriv->cfg->maps[MAC_RCR_AB]);
 
376
                        RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 
377
                                 ("Disable receive multicast frame.\n"));
 
378
                }
 
379
        }
 
380
 
 
381
        if (changed_flags & FIF_FCSFAIL) {
 
382
                if (*new_flags & FIF_FCSFAIL) {
 
383
                        mac->rx_conf |= rtlpriv->cfg->maps[MAC_RCR_ACRC32];
 
384
                        RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 
385
                                 ("Enable receive FCS error frame.\n"));
 
386
                } else {
 
387
                        mac->rx_conf &= ~rtlpriv->cfg->maps[MAC_RCR_ACRC32];
 
388
                        RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 
389
                                 ("Disable receive FCS error frame.\n"));
 
390
                }
 
391
        }
 
392
 
 
393
        /* if ssid not set to hw don't check bssid
 
394
         * here just used for linked scanning, & linked
 
395
         * and nolink check bssid is set in set network_type */
 
396
        if ((changed_flags & FIF_BCN_PRBRESP_PROMISC) &&
 
397
                (mac->link_state >= MAC80211_LINKED)) {
 
398
                if (mac->opmode != NL80211_IFTYPE_AP) {
 
399
                        if (*new_flags & FIF_BCN_PRBRESP_PROMISC) {
 
400
                                rtlpriv->cfg->ops->set_chk_bssid(hw, false);
 
401
                        } else {
 
402
                                rtlpriv->cfg->ops->set_chk_bssid(hw, true);
 
403
                        }
 
404
                }
 
405
        }
 
406
 
 
407
        if (changed_flags & FIF_CONTROL) {
 
408
                if (*new_flags & FIF_CONTROL) {
 
409
                        mac->rx_conf |= rtlpriv->cfg->maps[MAC_RCR_ACF];
 
410
 
 
411
                        RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 
412
                                 ("Enable receive control frame.\n"));
 
413
                } else {
 
414
                        mac->rx_conf &= ~rtlpriv->cfg->maps[MAC_RCR_ACF];
 
415
                        RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 
416
                                 ("Disable receive control frame.\n"));
 
417
                }
 
418
        }
 
419
 
 
420
        if (changed_flags & FIF_OTHER_BSS) {
 
421
                if (*new_flags & FIF_OTHER_BSS) {
 
422
                        mac->rx_conf |= rtlpriv->cfg->maps[MAC_RCR_AAP];
 
423
                        RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 
424
                                 ("Enable receive other BSS's frame.\n"));
 
425
                } else {
 
426
                        mac->rx_conf &= ~rtlpriv->cfg->maps[MAC_RCR_AAP];
 
427
                        RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 
428
                                 ("Disable receive other BSS's frame.\n"));
 
429
                }
 
430
        }
 
431
}
 
432
static int rtl_op_sta_add(struct ieee80211_hw *hw,
 
433
                         struct ieee80211_vif *vif,
 
434
                         struct ieee80211_sta *sta)
 
435
{
 
436
        struct rtl_priv *rtlpriv = rtl_priv(hw);
 
437
        struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
 
438
        struct rtl_sta_info *sta_entry;
 
439
 
 
440
        if (sta) {
 
441
                sta_entry = (struct rtl_sta_info *) sta->drv_priv;
 
442
                if (rtlhal->current_bandtype == BAND_ON_2_4G) {
 
443
                        sta_entry->wireless_mode = WIRELESS_MODE_G;
 
444
                        if (sta->supp_rates[0] <= 0xf)
 
445
                                sta_entry->wireless_mode = WIRELESS_MODE_B;
 
446
                        if (sta->ht_cap.ht_supported)
 
447
                                sta_entry->wireless_mode = WIRELESS_MODE_N_24G;
 
448
                } else if (rtlhal->current_bandtype == BAND_ON_5G) {
 
449
                        sta_entry->wireless_mode = WIRELESS_MODE_A;
 
450
                        if (sta->ht_cap.ht_supported)
 
451
                                sta_entry->wireless_mode = WIRELESS_MODE_N_24G;
 
452
                }
 
453
 
 
454
                /* I found some times mac80211 give wrong supp_rates for adhoc*/
 
455
                if (rtlpriv->mac80211.opmode == NL80211_IFTYPE_ADHOC)
 
456
                        sta_entry->wireless_mode = WIRELESS_MODE_G;
 
457
 
 
458
                RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
 
459
                        ("Add sta addr is %pM\n", sta->addr));
 
460
                rtlpriv->cfg->ops->update_rate_tbl(hw, sta, 0);
 
461
        }
 
462
        return 0;
 
463
}
 
464
static int rtl_op_sta_remove(struct ieee80211_hw *hw,
 
465
                                struct ieee80211_vif *vif,
 
466
                                struct ieee80211_sta *sta)
 
467
{
 
468
        struct rtl_priv *rtlpriv = rtl_priv(hw);
 
469
        struct rtl_sta_info *sta_entry;
 
470
        if (sta) {
 
471
                RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
 
472
                        ("Remove sta addr is %pM\n", sta->addr));
 
473
                sta_entry = (struct rtl_sta_info *) sta->drv_priv;
 
474
                sta_entry->wireless_mode = 0;
 
475
                sta_entry->ratr_index = 0;
 
476
        }
 
477
        return 0;
 
478
}
 
479
static int _rtl_get_hal_qnum(u16 queue)
 
480
{
 
481
        int qnum;
 
482
 
 
483
        switch (queue) {
 
484
        case 0:
 
485
                qnum = AC3_VO;
 
486
                break;
 
487
        case 1:
 
488
                qnum = AC2_VI;
 
489
                break;
 
490
        case 2:
 
491
                qnum = AC0_BE;
 
492
                break;
 
493
        case 3:
 
494
                qnum = AC1_BK;
 
495
                break;
 
496
        default:
 
497
                qnum = AC0_BE;
 
498
                break;
 
499
        }
 
500
        return qnum;
 
501
}
 
502
 
 
503
/*
 
504
 *for mac80211 VO=0, VI=1, BE=2, BK=3
 
505
 *for rtl819x  BE=0, BK=1, VI=2, VO=3
 
506
 */
 
507
static int rtl_op_conf_tx(struct ieee80211_hw *hw,
 
508
                   struct ieee80211_vif *vif, u16 queue,
 
509
                   const struct ieee80211_tx_queue_params *param)
 
510
{
 
511
        struct rtl_priv *rtlpriv = rtl_priv(hw);
 
512
        struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 
513
        int aci;
 
514
 
 
515
        if (queue >= AC_MAX) {
 
516
                RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
 
517
                         ("queue number %d is incorrect!\n", queue));
 
518
                return -EINVAL;
 
519
        }
 
520
 
 
521
        aci = _rtl_get_hal_qnum(queue);
 
522
        mac->ac[aci].aifs = param->aifs;
 
523
        mac->ac[aci].cw_min = cpu_to_le16(param->cw_min);
 
524
        mac->ac[aci].cw_max = cpu_to_le16(param->cw_max);
 
525
        mac->ac[aci].tx_op = cpu_to_le16(param->txop);
 
526
        memcpy(&mac->edca_param[aci], param, sizeof(*param));
 
527
        rtlpriv->cfg->ops->set_qos(hw, aci);
 
528
        return 0;
 
529
}
 
530
 
 
531
static void rtl_op_bss_info_changed(struct ieee80211_hw *hw,
 
532
                             struct ieee80211_vif *vif,
 
533
                             struct ieee80211_bss_conf *bss_conf, u32 changed)
 
534
{
 
535
        struct rtl_priv *rtlpriv = rtl_priv(hw);
 
536
        struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
 
537
        struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 
538
        struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
 
539
        struct ieee80211_sta *sta = NULL;
 
540
 
 
541
        mutex_lock(&rtlpriv->locks.conf_mutex);
 
542
        if ((vif->type == NL80211_IFTYPE_ADHOC) ||
 
543
            (vif->type == NL80211_IFTYPE_AP) ||
 
544
            (vif->type == NL80211_IFTYPE_MESH_POINT)) {
 
545
                if ((changed & BSS_CHANGED_BEACON) ||
 
546
                    (changed & BSS_CHANGED_BEACON_ENABLED &&
 
547
                     bss_conf->enable_beacon)) {
 
548
                        if (mac->beacon_enabled == 0) {
 
549
                                RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
 
550
                                         ("BSS_CHANGED_BEACON_ENABLED\n"));
 
551
 
 
552
                                /*start hw beacon interrupt. */
 
553
                                /*rtlpriv->cfg->ops->set_bcn_reg(hw); */
 
554
                                mac->beacon_enabled = 1;
 
555
                                rtlpriv->cfg->ops->update_interrupt_mask(hw,
 
556
                                                rtlpriv->cfg->maps
 
557
                                                [RTL_IBSS_INT_MASKS],
 
558
                                                0);
 
559
 
 
560
                                if (rtlpriv->cfg->ops->linked_set_reg)
 
561
                                        rtlpriv->cfg->ops->linked_set_reg(hw);
 
562
                        }
 
563
                }
 
564
                if ((changed & BSS_CHANGED_BEACON_ENABLED &&
 
565
                        !bss_conf->enable_beacon)) {
 
566
                        if (mac->beacon_enabled == 1) {
 
567
                                RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
 
568
                                         ("ADHOC DISABLE BEACON\n"));
 
569
 
 
570
                                mac->beacon_enabled = 0;
 
571
                                rtlpriv->cfg->ops->update_interrupt_mask(hw, 0,
 
572
                                                rtlpriv->cfg->maps
 
573
                                                [RTL_IBSS_INT_MASKS]);
 
574
                        }
 
575
                }
 
576
                if (changed & BSS_CHANGED_BEACON_INT) {
 
577
                        RT_TRACE(rtlpriv, COMP_BEACON, DBG_TRACE,
 
578
                                 ("BSS_CHANGED_BEACON_INT\n"));
 
579
                        mac->beacon_interval = bss_conf->beacon_int;
 
580
                        rtlpriv->cfg->ops->set_bcn_intv(hw);
 
581
                }
 
582
        }
 
583
 
 
584
        /*TODO: reference to enum ieee80211_bss_change */
 
585
        if (changed & BSS_CHANGED_ASSOC) {
 
586
                if (bss_conf->assoc) {
 
587
                        /* we should reset all sec info & cam
 
588
                         * before set cam after linked, we should not
 
589
                         * reset in disassoc, that will cause tkip->wep
 
590
                         * fail because some flag will be wrong */
 
591
                        /* reset sec info */
 
592
                        rtl_cam_reset_sec_info(hw);
 
593
                        /* reset cam to fix wep fail issue
 
594
                         * when change from wpa to wep */
 
595
                        rtl_cam_reset_all_entry(hw);
 
596
 
 
597
                        mac->link_state = MAC80211_LINKED;
 
598
                        mac->cnt_after_linked = 0;
 
599
                        mac->assoc_id = bss_conf->aid;
 
600
                        memcpy(mac->bssid, bss_conf->bssid, 6);
 
601
 
 
602
                        if (rtlpriv->cfg->ops->linked_set_reg)
 
603
                                rtlpriv->cfg->ops->linked_set_reg(hw);
 
604
                        if (mac->opmode == NL80211_IFTYPE_STATION && sta)
 
605
                                rtlpriv->cfg->ops->update_rate_tbl(hw, sta, 0);
 
606
                        RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
 
607
                                 ("BSS_CHANGED_ASSOC\n"));
 
608
                } else {
 
609
                        if (mac->link_state == MAC80211_LINKED)
 
610
                                rtl_lps_leave(hw);
 
611
 
 
612
                        mac->link_state = MAC80211_NOLINK;
 
613
                        memset(mac->bssid, 0, 6);
 
614
 
 
615
                        /* reset sec info */
 
616
                        rtl_cam_reset_sec_info(hw);
 
617
 
 
618
                        rtl_cam_reset_all_entry(hw);
 
619
                        mac->vendor = PEER_UNKNOWN;
 
620
 
 
621
                        RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
 
622
                                 ("BSS_CHANGED_UN_ASSOC\n"));
 
623
                }
 
624
        }
 
625
 
 
626
        if (changed & BSS_CHANGED_ERP_CTS_PROT) {
 
627
                RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
 
628
                         ("BSS_CHANGED_ERP_CTS_PROT\n"));
 
629
                mac->use_cts_protect = bss_conf->use_cts_prot;
 
630
        }
 
631
 
 
632
        if (changed & BSS_CHANGED_ERP_PREAMBLE) {
 
633
                RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
 
634
                         ("BSS_CHANGED_ERP_PREAMBLE use short preamble:%x\n",
 
635
                          bss_conf->use_short_preamble));
 
636
 
 
637
                mac->short_preamble = bss_conf->use_short_preamble;
 
638
                rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_ACK_PREAMBLE,
 
639
                                              (u8 *) (&mac->short_preamble));
 
640
        }
 
641
 
 
642
        if (changed & BSS_CHANGED_ERP_SLOT) {
 
643
                RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
 
644
                         ("BSS_CHANGED_ERP_SLOT\n"));
 
645
 
 
646
                if (bss_conf->use_short_slot)
 
647
                        mac->slot_time = RTL_SLOT_TIME_9;
 
648
                else
 
649
                        mac->slot_time = RTL_SLOT_TIME_20;
 
650
 
 
651
                rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_SLOT_TIME,
 
652
                                              (u8 *) (&mac->slot_time));
 
653
        }
 
654
 
 
655
        if (changed & BSS_CHANGED_HT) {
 
656
                RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
 
657
                         ("BSS_CHANGED_HT\n"));
 
658
                rcu_read_lock();
 
659
                sta = get_sta(hw, vif, bss_conf->bssid);
 
660
                if (sta) {
 
661
                        if (sta->ht_cap.ampdu_density >
 
662
                            mac->current_ampdu_density)
 
663
                                mac->current_ampdu_density =
 
664
                                    sta->ht_cap.ampdu_density;
 
665
                        if (sta->ht_cap.ampdu_factor <
 
666
                            mac->current_ampdu_factor)
 
667
                                mac->current_ampdu_factor =
 
668
                                    sta->ht_cap.ampdu_factor;
 
669
                }
 
670
                rcu_read_unlock();
 
671
 
 
672
                rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_SHORTGI_DENSITY,
 
673
                                              (u8 *) (&mac->max_mss_density));
 
674
                rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_AMPDU_FACTOR,
 
675
                                              &mac->current_ampdu_factor);
 
676
                rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_AMPDU_MIN_SPACE,
 
677
                                              &mac->current_ampdu_density);
 
678
        }
 
679
 
 
680
        if (changed & BSS_CHANGED_BSSID) {
 
681
                u32 basic_rates;
 
682
 
 
683
                rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_BSSID,
 
684
                                              (u8 *) bss_conf->bssid);
 
685
 
 
686
                RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
 
687
                         ("%pM\n", bss_conf->bssid));
 
688
 
 
689
                mac->vendor = PEER_UNKNOWN;
 
690
                memcpy(mac->bssid, bss_conf->bssid, 6);
 
691
                rtlpriv->cfg->ops->set_network_type(hw, vif->type);
 
692
 
 
693
                rcu_read_lock();
 
694
                sta = get_sta(hw, vif, bss_conf->bssid);
 
695
                if (!sta) {
 
696
                        rcu_read_unlock();
 
697
                        goto out;
 
698
                }
 
699
 
 
700
                if (rtlhal->current_bandtype == BAND_ON_5G) {
 
701
                        mac->mode = WIRELESS_MODE_A;
 
702
                } else {
 
703
                        if (sta->supp_rates[0] <= 0xf)
 
704
                                mac->mode = WIRELESS_MODE_B;
 
705
                        else
 
706
                                mac->mode = WIRELESS_MODE_G;
 
707
                }
 
708
 
 
709
                if (sta->ht_cap.ht_supported) {
 
710
                        if (rtlhal->current_bandtype == BAND_ON_2_4G)
 
711
                                mac->mode = WIRELESS_MODE_N_24G;
 
712
                        else
 
713
                                mac->mode = WIRELESS_MODE_N_5G;
 
714
                }
 
715
 
 
716
                /* just station need it, because ibss & ap mode will
 
717
                 * set in sta_add, and will be NULL here */
 
718
                if (mac->opmode == NL80211_IFTYPE_STATION) {
 
719
                        struct rtl_sta_info *sta_entry;
 
720
                        sta_entry = (struct rtl_sta_info *) sta->drv_priv;
 
721
                        sta_entry->wireless_mode = mac->mode;
 
722
                }
 
723
 
 
724
                if (sta->ht_cap.ht_supported) {
 
725
                        mac->ht_enable = true;
 
726
 
 
727
                        /*
 
728
                         * for cisco 1252 bw20 it's wrong
 
729
                         * if (ht_cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) {
 
730
                         *      mac->bw_40 = true;
 
731
                         * }
 
732
                         * */
 
733
                }
 
734
 
 
735
                if (changed & BSS_CHANGED_BASIC_RATES) {
 
736
                        /* for 5G must << RATE_6M_INDEX=4,
 
737
                         * because 5G have no cck rate*/
 
738
                        if (rtlhal->current_bandtype == BAND_ON_5G)
 
739
                                basic_rates = sta->supp_rates[1] << 4;
 
740
                        else
 
741
                                basic_rates = sta->supp_rates[0];
 
742
 
 
743
                        mac->basic_rates = basic_rates;
 
744
                        rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_BASIC_RATE,
 
745
                                        (u8 *) (&basic_rates));
 
746
                }
 
747
                rcu_read_unlock();
 
748
        }
 
749
 
 
750
        /*
 
751
         * For FW LPS:
 
752
         * To tell firmware we have connected
 
753
         * to an AP. For 92SE/CE power save v2.
 
754
         */
 
755
        if (changed & BSS_CHANGED_ASSOC) {
 
756
                if (bss_conf->assoc) {
 
757
                        if (ppsc->fwctrl_lps) {
 
758
                                u8 mstatus = RT_MEDIA_CONNECT;
 
759
                                rtlpriv->cfg->ops->set_hw_reg(hw,
 
760
                                                      HW_VAR_H2C_FW_JOINBSSRPT,
 
761
                                                      (u8 *) (&mstatus));
 
762
                                ppsc->report_linked = true;
 
763
                        }
 
764
                } else {
 
765
                        if (ppsc->fwctrl_lps) {
 
766
                                u8 mstatus = RT_MEDIA_DISCONNECT;
 
767
                                rtlpriv->cfg->ops->set_hw_reg(hw,
 
768
                                                      HW_VAR_H2C_FW_JOINBSSRPT,
 
769
                                                      (u8 *)(&mstatus));
 
770
                                ppsc->report_linked = false;
 
771
                        }
 
772
                }
 
773
        }
 
774
 
 
775
out:
 
776
        mutex_unlock(&rtlpriv->locks.conf_mutex);
 
777
}
 
778
 
 
779
static u64 rtl_op_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
 
780
{
 
781
        struct rtl_priv *rtlpriv = rtl_priv(hw);
 
782
        u64 tsf;
 
783
 
 
784
        rtlpriv->cfg->ops->get_hw_reg(hw, HW_VAR_CORRECT_TSF, (u8 *) (&tsf));
 
785
        return tsf;
 
786
}
 
787
 
 
788
static void rtl_op_set_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 
789
                           u64 tsf)
 
790
{
 
791
        struct rtl_priv *rtlpriv = rtl_priv(hw);
 
792
        struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 
793
        u8 bibss = (mac->opmode == NL80211_IFTYPE_ADHOC) ? 1 : 0;
 
794
 
 
795
        mac->tsf = tsf;
 
796
        rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_CORRECT_TSF, (u8 *) (&bibss));
 
797
}
 
798
 
 
799
static void rtl_op_reset_tsf(struct ieee80211_hw *hw,
 
800
                             struct ieee80211_vif *vif)
 
801
{
 
802
        struct rtl_priv *rtlpriv = rtl_priv(hw);
 
803
        u8 tmp = 0;
 
804
 
 
805
        rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_DUAL_TSF_RST, (u8 *) (&tmp));
 
806
}
 
807
 
 
808
static void rtl_op_sta_notify(struct ieee80211_hw *hw,
 
809
                              struct ieee80211_vif *vif,
 
810
                              enum sta_notify_cmd cmd,
 
811
                              struct ieee80211_sta *sta)
 
812
{
 
813
        switch (cmd) {
 
814
        case STA_NOTIFY_SLEEP:
 
815
                break;
 
816
        case STA_NOTIFY_AWAKE:
 
817
                break;
 
818
        default:
 
819
                break;
 
820
        }
 
821
}
 
822
 
 
823
static int rtl_op_ampdu_action(struct ieee80211_hw *hw,
 
824
                               struct ieee80211_vif *vif,
 
825
                               enum ieee80211_ampdu_mlme_action action,
 
826
                               struct ieee80211_sta *sta, u16 tid, u16 *ssn,
 
827
                               u8 buf_size)
 
828
{
 
829
        struct rtl_priv *rtlpriv = rtl_priv(hw);
 
830
 
 
831
        switch (action) {
 
832
        case IEEE80211_AMPDU_TX_START:
 
833
                RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
 
834
                         ("IEEE80211_AMPDU_TX_START: TID:%d\n", tid));
 
835
                return rtl_tx_agg_start(hw, sta, tid, ssn);
 
836
                break;
 
837
        case IEEE80211_AMPDU_TX_STOP:
 
838
                RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
 
839
                         ("IEEE80211_AMPDU_TX_STOP: TID:%d\n", tid));
 
840
                return rtl_tx_agg_stop(hw, sta, tid);
 
841
                break;
 
842
        case IEEE80211_AMPDU_TX_OPERATIONAL:
 
843
                RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
 
844
                         ("IEEE80211_AMPDU_TX_OPERATIONAL:TID:%d\n", tid));
 
845
                rtl_tx_agg_oper(hw, sta, tid);
 
846
                break;
 
847
        case IEEE80211_AMPDU_RX_START:
 
848
                RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
 
849
                         ("IEEE80211_AMPDU_RX_START:TID:%d\n", tid));
 
850
                break;
 
851
        case IEEE80211_AMPDU_RX_STOP:
 
852
                RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
 
853
                         ("IEEE80211_AMPDU_RX_STOP:TID:%d\n", tid));
 
854
                break;
 
855
        default:
 
856
                RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
 
857
                         ("IEEE80211_AMPDU_ERR!!!!:\n"));
 
858
                return -EOPNOTSUPP;
 
859
        }
 
860
        return 0;
 
861
}
 
862
 
 
863
static void rtl_op_sw_scan_start(struct ieee80211_hw *hw)
 
864
{
 
865
        struct rtl_priv *rtlpriv = rtl_priv(hw);
 
866
        struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 
867
 
 
868
        mac->act_scanning = true;
 
869
 
 
870
        RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, ("\n"));
 
871
 
 
872
        if (mac->link_state == MAC80211_LINKED) {
 
873
                rtl_lps_leave(hw);
 
874
                mac->link_state = MAC80211_LINKED_SCANNING;
 
875
        } else {
 
876
                rtl_ips_nic_on(hw);
 
877
        }
 
878
 
 
879
        /* Dual mac */
 
880
        rtlpriv->rtlhal.load_imrandiqk_setting_for2g = false;
 
881
 
 
882
        rtlpriv->cfg->ops->led_control(hw, LED_CTL_SITE_SURVEY);
 
883
        rtlpriv->cfg->ops->scan_operation_backup(hw, SCAN_OPT_BACKUP);
 
884
}
 
885
 
 
886
static void rtl_op_sw_scan_complete(struct ieee80211_hw *hw)
 
887
{
 
888
        struct rtl_priv *rtlpriv = rtl_priv(hw);
 
889
        struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 
890
 
 
891
        RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, ("\n"));
 
892
        mac->act_scanning = false;
 
893
        /* Dual mac */
 
894
        rtlpriv->rtlhal.load_imrandiqk_setting_for2g = false;
 
895
 
 
896
        if (mac->link_state == MAC80211_LINKED_SCANNING) {
 
897
                mac->link_state = MAC80211_LINKED;
 
898
                if (mac->opmode == NL80211_IFTYPE_STATION) {
 
899
                        /* fix fwlps issue */
 
900
                        rtlpriv->cfg->ops->set_network_type(hw, mac->opmode);
 
901
                }
 
902
        }
 
903
 
 
904
        rtlpriv->cfg->ops->scan_operation_backup(hw, SCAN_OPT_RESTORE);
 
905
}
 
906
 
 
907
static int rtl_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 
908
                          struct ieee80211_vif *vif, struct ieee80211_sta *sta,
 
909
                          struct ieee80211_key_conf *key)
 
910
{
 
911
        struct rtl_priv *rtlpriv = rtl_priv(hw);
 
912
        struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 
913
        u8 key_type = NO_ENCRYPTION;
 
914
        u8 key_idx;
 
915
        bool group_key = false;
 
916
        bool wep_only = false;
 
917
        int err = 0;
 
918
        u8 mac_addr[ETH_ALEN];
 
919
        u8 bcast_addr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
 
920
        u8 zero_addr[ETH_ALEN] = { 0 };
 
921
 
 
922
        if (rtlpriv->cfg->mod_params->sw_crypto || rtlpriv->sec.use_sw_sec) {
 
923
                RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
 
924
                         ("not open hw encryption\n"));
 
925
                return -ENOSPC; /*User disabled HW-crypto */
 
926
        }
 
927
        RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
 
928
                 ("%s hardware based encryption for keyidx: %d, mac: %pM\n",
 
929
                  cmd == SET_KEY ? "Using" : "Disabling", key->keyidx,
 
930
                  sta ? sta->addr : bcast_addr));
 
931
        rtlpriv->sec.being_setkey = true;
 
932
        rtl_ips_nic_on(hw);
 
933
        mutex_lock(&rtlpriv->locks.conf_mutex);
 
934
        /* <1> get encryption alg */
 
935
 
 
936
        switch (key->cipher) {
 
937
        case WLAN_CIPHER_SUITE_WEP40:
 
938
                key_type = WEP40_ENCRYPTION;
 
939
                RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, ("alg:WEP40\n"));
 
940
                break;
 
941
        case WLAN_CIPHER_SUITE_WEP104:
 
942
                RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
 
943
                         ("alg:WEP104\n"));
 
944
                key_type = WEP104_ENCRYPTION;
 
945
                break;
 
946
        case WLAN_CIPHER_SUITE_TKIP:
 
947
                key_type = TKIP_ENCRYPTION;
 
948
                RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, ("alg:TKIP\n"));
 
949
                break;
 
950
        case WLAN_CIPHER_SUITE_CCMP:
 
951
                key_type = AESCCMP_ENCRYPTION;
 
952
                RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, ("alg:CCMP\n"));
 
953
                break;
 
954
        default:
 
955
                RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
 
956
                         ("alg_err:%x!!!!:\n", key->cipher));
 
957
                goto out_unlock;
 
958
        }
 
959
        if (key_type == WEP40_ENCRYPTION ||
 
960
                        key_type == WEP104_ENCRYPTION ||
 
961
                        mac->opmode == NL80211_IFTYPE_ADHOC)
 
962
                rtlpriv->sec.use_defaultkey = true;
 
963
 
 
964
        /* <2> get key_idx */
 
965
        key_idx = (u8) (key->keyidx);
 
966
        if (key_idx > 3)
 
967
                goto out_unlock;
 
968
        /* <3> if pairwise key enable_hw_sec */
 
969
        group_key = !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE);
 
970
 
 
971
        /* wep always be group key, but there are two conditions:
 
972
         * 1) wep only: is just for wep enc, in this condition
 
973
         * rtlpriv->sec.pairwise_enc_algorithm == NO_ENCRYPTION
 
974
         * will be true & enable_hw_sec will be set when wep
 
975
         * ke setting.
 
976
         * 2) wep(group) + AES(pairwise): some AP like cisco
 
977
         * may use it, in this condition enable_hw_sec will not
 
978
         * be set when wep key setting */
 
979
        /* we must reset sec_info after lingked before set key,
 
980
         * or some flag will be wrong*/
 
981
        if (mac->opmode == NL80211_IFTYPE_AP) {
 
982
                if (!group_key || key_type == WEP40_ENCRYPTION ||
 
983
                        key_type == WEP104_ENCRYPTION) {
 
984
                        if (group_key)
 
985
                                wep_only = true;
 
986
                        rtlpriv->cfg->ops->enable_hw_sec(hw);
 
987
                }
 
988
        } else {
 
989
                if ((!group_key) || (mac->opmode == NL80211_IFTYPE_ADHOC) ||
 
990
                     rtlpriv->sec.pairwise_enc_algorithm == NO_ENCRYPTION) {
 
991
                        if (rtlpriv->sec.pairwise_enc_algorithm ==
 
992
                            NO_ENCRYPTION &&
 
993
                            (key_type == WEP40_ENCRYPTION ||
 
994
                            key_type == WEP104_ENCRYPTION))
 
995
                                wep_only = true;
 
996
                        rtlpriv->sec.pairwise_enc_algorithm = key_type;
 
997
                        RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
 
998
                                ("set enable_hw_sec, key_type:%x(OPEN:0 WEP40:1"
 
999
                                " TKIP:2 AES:4 WEP104:5)\n", key_type));
 
1000
                        rtlpriv->cfg->ops->enable_hw_sec(hw);
 
1001
                }
 
1002
        }
 
1003
        /* <4> set key based on cmd */
 
1004
        switch (cmd) {
 
1005
        case SET_KEY:
 
1006
                if (wep_only) {
 
1007
                        RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
 
1008
                                 ("set WEP(group/pairwise) key\n"));
 
1009
                        /* Pairwise key with an assigned MAC address. */
 
1010
                        rtlpriv->sec.pairwise_enc_algorithm = key_type;
 
1011
                        rtlpriv->sec.group_enc_algorithm = key_type;
 
1012
                        /*set local buf about wep key. */
 
1013
                        memcpy(rtlpriv->sec.key_buf[key_idx],
 
1014
                               key->key, key->keylen);
 
1015
                        rtlpriv->sec.key_len[key_idx] = key->keylen;
 
1016
                        memcpy(mac_addr, zero_addr, ETH_ALEN);
 
1017
                } else if (group_key) { /* group key */
 
1018
                        RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
 
1019
                                 ("set group key\n"));
 
1020
                        /* group key */
 
1021
                        rtlpriv->sec.group_enc_algorithm = key_type;
 
1022
                        /*set local buf about group key. */
 
1023
                        memcpy(rtlpriv->sec.key_buf[key_idx],
 
1024
                               key->key, key->keylen);
 
1025
                        rtlpriv->sec.key_len[key_idx] = key->keylen;
 
1026
                        memcpy(mac_addr, bcast_addr, ETH_ALEN);
 
1027
                } else {        /* pairwise key */
 
1028
                        RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
 
1029
                                 ("set pairwise key\n"));
 
1030
                        if (!sta) {
 
1031
                                RT_ASSERT(false, ("pairwise key withnot"
 
1032
                                                  "mac_addr\n"));
 
1033
 
 
1034
                                err = -EOPNOTSUPP;
 
1035
                                goto out_unlock;
 
1036
                        }
 
1037
                        /* Pairwise key with an assigned MAC address. */
 
1038
                        rtlpriv->sec.pairwise_enc_algorithm = key_type;
 
1039
                        /*set local buf about pairwise key. */
 
1040
                        memcpy(rtlpriv->sec.key_buf[PAIRWISE_KEYIDX],
 
1041
                               key->key, key->keylen);
 
1042
                        rtlpriv->sec.key_len[PAIRWISE_KEYIDX] = key->keylen;
 
1043
                        rtlpriv->sec.pairwise_key =
 
1044
                            rtlpriv->sec.key_buf[PAIRWISE_KEYIDX];
 
1045
                        memcpy(mac_addr, sta->addr, ETH_ALEN);
 
1046
                }
 
1047
                rtlpriv->cfg->ops->set_key(hw, key_idx, mac_addr,
 
1048
                                           group_key, key_type, wep_only,
 
1049
                                           false);
 
1050
                /* <5> tell mac80211 do something: */
 
1051
                /*must use sw generate IV, or can not work !!!!. */
 
1052
                key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
 
1053
                key->hw_key_idx = key_idx;
 
1054
                if (key_type == TKIP_ENCRYPTION)
 
1055
                        key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
 
1056
                break;
 
1057
        case DISABLE_KEY:
 
1058
                RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
 
1059
                         ("disable key delete one entry\n"));
 
1060
                /*set local buf about wep key. */
 
1061
                if (mac->opmode == NL80211_IFTYPE_AP) {
 
1062
                        if (sta)
 
1063
                                rtl_cam_del_entry(hw, sta->addr);
 
1064
                }
 
1065
                memset(rtlpriv->sec.key_buf[key_idx], 0, key->keylen);
 
1066
                rtlpriv->sec.key_len[key_idx] = 0;
 
1067
                memcpy(mac_addr, zero_addr, ETH_ALEN);
 
1068
                /*
 
1069
                 *mac80211 will delete entrys one by one,
 
1070
                 *so don't use rtl_cam_reset_all_entry
 
1071
                 *or clear all entry here.
 
1072
                 */
 
1073
                rtl_cam_delete_one_entry(hw, mac_addr, key_idx);
 
1074
 
 
1075
                rtl_cam_reset_sec_info(hw);
 
1076
 
 
1077
                break;
 
1078
        default:
 
1079
                RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
 
1080
                         ("cmd_err:%x!!!!:\n", cmd));
 
1081
        }
 
1082
out_unlock:
 
1083
        mutex_unlock(&rtlpriv->locks.conf_mutex);
 
1084
        rtlpriv->sec.being_setkey = false;
 
1085
        return err;
 
1086
}
 
1087
 
 
1088
static void rtl_op_rfkill_poll(struct ieee80211_hw *hw)
 
1089
{
 
1090
        struct rtl_priv *rtlpriv = rtl_priv(hw);
 
1091
 
 
1092
        bool radio_state;
 
1093
        bool blocked;
 
1094
        u8 valid = 0;
 
1095
 
 
1096
        if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
 
1097
                return;
 
1098
 
 
1099
        mutex_lock(&rtlpriv->locks.conf_mutex);
 
1100
 
 
1101
        /*if Radio On return true here */
 
1102
        radio_state = rtlpriv->cfg->ops->radio_onoff_checking(hw, &valid);
 
1103
 
 
1104
        if (valid) {
 
1105
                if (unlikely(radio_state != rtlpriv->rfkill.rfkill_state)) {
 
1106
                        rtlpriv->rfkill.rfkill_state = radio_state;
 
1107
 
 
1108
                        RT_TRACE(rtlpriv, COMP_RF, DBG_DMESG,
 
1109
                                 (KERN_INFO "wireless radio switch turned %s\n",
 
1110
                                  radio_state ? "on" : "off"));
 
1111
 
 
1112
                        blocked = (rtlpriv->rfkill.rfkill_state == 1) ? 0 : 1;
 
1113
                        wiphy_rfkill_set_hw_state(hw->wiphy, blocked);
 
1114
                }
 
1115
        }
 
1116
 
 
1117
        mutex_unlock(&rtlpriv->locks.conf_mutex);
 
1118
}
 
1119
 
 
1120
/* this function is called by mac80211 to flush tx buffer
 
1121
 * before switch channle or power save, or tx buffer packet
 
1122
 * maybe send after offchannel or rf sleep, this may cause
 
1123
 * dis-association by AP */
 
1124
static void rtl_op_flush(struct ieee80211_hw *hw, bool drop)
 
1125
{
 
1126
        struct rtl_priv *rtlpriv = rtl_priv(hw);
 
1127
 
 
1128
        if (rtlpriv->intf_ops->flush)
 
1129
                rtlpriv->intf_ops->flush(hw, drop);
 
1130
}
 
1131
 
 
1132
const struct ieee80211_ops rtl_ops = {
 
1133
        .start = rtl_op_start,
 
1134
        .stop = rtl_op_stop,
 
1135
        .tx = rtl_op_tx,
 
1136
        .add_interface = rtl_op_add_interface,
 
1137
        .remove_interface = rtl_op_remove_interface,
 
1138
        .config = rtl_op_config,
 
1139
        .configure_filter = rtl_op_configure_filter,
 
1140
        .sta_add = rtl_op_sta_add,
 
1141
        .sta_remove = rtl_op_sta_remove,
 
1142
        .set_key = rtl_op_set_key,
 
1143
        .conf_tx = rtl_op_conf_tx,
 
1144
        .bss_info_changed = rtl_op_bss_info_changed,
 
1145
        .get_tsf = rtl_op_get_tsf,
 
1146
        .set_tsf = rtl_op_set_tsf,
 
1147
        .reset_tsf = rtl_op_reset_tsf,
 
1148
        .sta_notify = rtl_op_sta_notify,
 
1149
        .ampdu_action = rtl_op_ampdu_action,
 
1150
        .sw_scan_start = rtl_op_sw_scan_start,
 
1151
        .sw_scan_complete = rtl_op_sw_scan_complete,
 
1152
        .rfkill_poll = rtl_op_rfkill_poll,
 
1153
        .flush = rtl_op_flush,
 
1154
};