1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
|
/*
* Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include "mt76x2.h"
static int
mt76x2_start(struct ieee80211_hw *hw)
{
struct mt76x02_dev *dev = hw->priv;
int ret;
mutex_lock(&dev->mt76.mutex);
ret = mt76x2_mac_start(dev);
if (ret)
goto out;
ret = mt76x2_phy_start(dev);
if (ret)
goto out;
ieee80211_queue_delayed_work(mt76_hw(dev), &dev->mac_work,
MT_CALIBRATE_INTERVAL);
set_bit(MT76_STATE_RUNNING, &dev->mt76.state);
out:
mutex_unlock(&dev->mt76.mutex);
return ret;
}
static void
mt76x2_stop(struct ieee80211_hw *hw)
{
struct mt76x02_dev *dev = hw->priv;
mutex_lock(&dev->mt76.mutex);
clear_bit(MT76_STATE_RUNNING, &dev->mt76.state);
mt76x2_stop_hardware(dev);
mutex_unlock(&dev->mt76.mutex);
}
static int
mt76x2_set_channel(struct mt76x02_dev *dev, struct cfg80211_chan_def *chandef)
{
int ret;
cancel_delayed_work_sync(&dev->cal_work);
set_bit(MT76_RESET, &dev->mt76.state);
mt76_set_channel(&dev->mt76);
tasklet_disable(&dev->pre_tbtt_tasklet);
tasklet_disable(&dev->dfs_pd.dfs_tasklet);
mt76x2_mac_stop(dev, true);
ret = mt76x2_phy_set_channel(dev, chandef);
/* channel cycle counters read-and-clear */
mt76_rr(dev, MT_CH_IDLE);
mt76_rr(dev, MT_CH_BUSY);
mt76x2_dfs_init_params(dev);
mt76x2_mac_resume(dev);
tasklet_enable(&dev->dfs_pd.dfs_tasklet);
tasklet_enable(&dev->pre_tbtt_tasklet);
clear_bit(MT76_RESET, &dev->mt76.state);
mt76_txq_schedule_all(&dev->mt76);
return ret;
}
static int
mt76x2_config(struct ieee80211_hw *hw, u32 changed)
{
struct mt76x02_dev *dev = hw->priv;
int ret = 0;
mutex_lock(&dev->mt76.mutex);
if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
if (!(hw->conf.flags & IEEE80211_CONF_MONITOR))
dev->mt76.rxfilter |= MT_RX_FILTR_CFG_PROMISC;
else
dev->mt76.rxfilter &= ~MT_RX_FILTR_CFG_PROMISC;
mt76_wr(dev, MT_RX_FILTR_CFG, dev->mt76.rxfilter);
}
if (changed & IEEE80211_CONF_CHANGE_POWER) {
dev->mt76.txpower_conf = hw->conf.power_level * 2;
/* convert to per-chain power for 2x2 devices */
dev->mt76.txpower_conf -= 6;
if (test_bit(MT76_STATE_RUNNING, &dev->mt76.state)) {
mt76x2_phy_set_txpower(dev);
mt76x02_tx_set_txpwr_auto(dev, dev->mt76.txpower_conf);
}
}
if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
ieee80211_stop_queues(hw);
ret = mt76x2_set_channel(dev, &hw->conf.chandef);
ieee80211_wake_queues(hw);
}
mutex_unlock(&dev->mt76.mutex);
return ret;
}
static void
mt76x2_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
struct ieee80211_bss_conf *info, u32 changed)
{
struct mt76x02_dev *dev = hw->priv;
struct mt76x02_vif *mvif = (struct mt76x02_vif *) vif->drv_priv;
mutex_lock(&dev->mt76.mutex);
if (changed & BSS_CHANGED_BSSID)
mt76x2_mac_set_bssid(dev, mvif->idx, info->bssid);
if (changed & BSS_CHANGED_BEACON_INT) {
mt76_rmw_field(dev, MT_BEACON_TIME_CFG,
MT_BEACON_TIME_CFG_INTVAL,
info->beacon_int << 4);
dev->beacon_int = info->beacon_int;
dev->tbtt_count = 0;
}
if (changed & BSS_CHANGED_BEACON_ENABLED) {
tasklet_disable(&dev->pre_tbtt_tasklet);
mt76x2_mac_set_beacon_enable(dev, mvif->idx,
info->enable_beacon);
tasklet_enable(&dev->pre_tbtt_tasklet);
}
if (changed & BSS_CHANGED_ERP_SLOT) {
int slottime = info->use_short_slot ? 9 : 20;
dev->slottime = slottime;
mt76x2_set_tx_ackto(dev);
}
mutex_unlock(&dev->mt76.mutex);
}
void
mt76x2_sta_ps(struct mt76_dev *mdev, struct ieee80211_sta *sta, bool ps)
{
struct mt76x02_sta *msta = (struct mt76x02_sta *) sta->drv_priv;
struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, mt76);
int idx = msta->wcid.idx;
mt76_stop_tx_queues(&dev->mt76, sta, true);
mt76x02_mac_wcid_set_drop(dev, idx, ps);
}
static void
mt76x2_sw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
const u8 *mac)
{
struct mt76x02_dev *dev = hw->priv;
tasklet_disable(&dev->pre_tbtt_tasklet);
set_bit(MT76_SCANNING, &dev->mt76.state);
}
static void
mt76x2_sw_scan_complete(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
{
struct mt76x02_dev *dev = hw->priv;
clear_bit(MT76_SCANNING, &dev->mt76.state);
tasklet_enable(&dev->pre_tbtt_tasklet);
}
static void
mt76x2_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
u32 queues, bool drop)
{
}
static int
mt76x2_get_txpower(struct ieee80211_hw *hw, struct ieee80211_vif *vif, int *dbm)
{
struct mt76x02_dev *dev = hw->priv;
*dbm = dev->mt76.txpower_cur / 2;
/* convert from per-chain power to combined output on 2x2 devices */
*dbm += 3;
return 0;
}
static void mt76x2_set_coverage_class(struct ieee80211_hw *hw,
s16 coverage_class)
{
struct mt76x02_dev *dev = hw->priv;
mutex_lock(&dev->mt76.mutex);
dev->coverage_class = coverage_class;
mt76x2_set_tx_ackto(dev);
mutex_unlock(&dev->mt76.mutex);
}
static int
mt76x2_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, bool set)
{
return 0;
}
static int mt76x2_set_antenna(struct ieee80211_hw *hw, u32 tx_ant,
u32 rx_ant)
{
struct mt76x02_dev *dev = hw->priv;
if (!tx_ant || tx_ant > 3 || tx_ant != rx_ant)
return -EINVAL;
mutex_lock(&dev->mt76.mutex);
dev->mt76.chainmask = (tx_ant == 3) ? 0x202 : 0x101;
dev->mt76.antenna_mask = tx_ant;
mt76_set_stream_caps(&dev->mt76, true);
mt76x2_phy_set_antenna(dev);
mutex_unlock(&dev->mt76.mutex);
return 0;
}
static int mt76x2_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant,
u32 *rx_ant)
{
struct mt76x02_dev *dev = hw->priv;
mutex_lock(&dev->mt76.mutex);
*tx_ant = dev->mt76.antenna_mask;
*rx_ant = dev->mt76.antenna_mask;
mutex_unlock(&dev->mt76.mutex);
return 0;
}
static int
mt76x2_set_rts_threshold(struct ieee80211_hw *hw, u32 val)
{
struct mt76x02_dev *dev = hw->priv;
if (val != ~0 && val > 0xffff)
return -EINVAL;
mutex_lock(&dev->mutex);
mt76x2_mac_set_tx_protection(dev, val);
mutex_unlock(&dev->mutex);
return 0;
}
const struct ieee80211_ops mt76x2_ops = {
.tx = mt76x02_tx,
.start = mt76x2_start,
.stop = mt76x2_stop,
.add_interface = mt76x02_add_interface,
.remove_interface = mt76x02_remove_interface,
.config = mt76x2_config,
.configure_filter = mt76x02_configure_filter,
.bss_info_changed = mt76x2_bss_info_changed,
.sta_add = mt76x02_sta_add,
.sta_remove = mt76x02_sta_remove,
.set_key = mt76x02_set_key,
.conf_tx = mt76x02_conf_tx,
.sw_scan_start = mt76x2_sw_scan,
.sw_scan_complete = mt76x2_sw_scan_complete,
.flush = mt76x2_flush,
.ampdu_action = mt76x02_ampdu_action,
.get_txpower = mt76x2_get_txpower,
.wake_tx_queue = mt76_wake_tx_queue,
.sta_rate_tbl_update = mt76x02_sta_rate_tbl_update,
.release_buffered_frames = mt76_release_buffered_frames,
.set_coverage_class = mt76x2_set_coverage_class,
.get_survey = mt76_get_survey,
.set_tim = mt76x2_set_tim,
.set_antenna = mt76x2_set_antenna,
.get_antenna = mt76x2_get_antenna,
.set_rts_threshold = mt76x2_set_rts_threshold,
};
|
