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
|
/*
* Copyright (C) 2018 Stanislaw Gruszka <stf_xl@wp.pl>
* 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 "mt76.h"
#include "mt76x02_regs.h"
#include "mt76x02_mac.h"
void mt76x02_configure_filter(struct ieee80211_hw *hw,
unsigned int changed_flags,
unsigned int *total_flags, u64 multicast)
{
struct mt76_dev *dev = hw->priv;
u32 flags = 0;
#define MT76_FILTER(_flag, _hw) do { \
flags |= *total_flags & FIF_##_flag; \
dev->rxfilter &= ~(_hw); \
dev->rxfilter |= !(flags & FIF_##_flag) * (_hw); \
} while (0)
mutex_lock(&dev->mutex);
dev->rxfilter &= ~MT_RX_FILTR_CFG_OTHER_BSS;
MT76_FILTER(FCSFAIL, MT_RX_FILTR_CFG_CRC_ERR);
MT76_FILTER(PLCPFAIL, MT_RX_FILTR_CFG_PHY_ERR);
MT76_FILTER(CONTROL, MT_RX_FILTR_CFG_ACK |
MT_RX_FILTR_CFG_CTS |
MT_RX_FILTR_CFG_CFEND |
MT_RX_FILTR_CFG_CFACK |
MT_RX_FILTR_CFG_BA |
MT_RX_FILTR_CFG_CTRL_RSV);
MT76_FILTER(PSPOLL, MT_RX_FILTR_CFG_PSPOLL);
*total_flags = flags;
dev->bus->wr(dev, MT_RX_FILTR_CFG, dev->rxfilter);
mutex_unlock(&dev->mutex);
}
EXPORT_SYMBOL_GPL(mt76x02_configure_filter);
int mt76x02_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
struct ieee80211_sta *sta)
{
struct mt76_dev *dev = hw->priv;
struct mt76x02_sta *msta = (struct mt76x02_sta *) sta->drv_priv;
struct mt76x02_vif *mvif = (struct mt76x02_vif *) vif->drv_priv;
int ret = 0;
int idx = 0;
int i;
mutex_lock(&dev->mutex);
idx = mt76_wcid_alloc(dev->wcid_mask, ARRAY_SIZE(dev->wcid));
if (idx < 0) {
ret = -ENOSPC;
goto out;
}
msta->vif = mvif;
msta->wcid.sta = 1;
msta->wcid.idx = idx;
msta->wcid.hw_key_idx = -1;
mt76x02_mac_wcid_setup(dev, idx, mvif->idx, sta->addr);
mt76x02_mac_wcid_set_drop(dev, idx, false);
for (i = 0; i < ARRAY_SIZE(sta->txq); i++)
mt76x02_txq_init(dev, sta->txq[i]);
if (vif->type == NL80211_IFTYPE_AP)
set_bit(MT_WCID_FLAG_CHECK_PS, &msta->wcid.flags);
ewma_signal_init(&msta->rssi);
rcu_assign_pointer(dev->wcid[idx], &msta->wcid);
out:
mutex_unlock(&dev->mutex);
return ret;
}
EXPORT_SYMBOL_GPL(mt76x02_sta_add);
int mt76x02_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
struct ieee80211_sta *sta)
{
struct mt76_dev *dev = hw->priv;
struct mt76x02_sta *msta = (struct mt76x02_sta *) sta->drv_priv;
int idx = msta->wcid.idx;
int i;
mutex_lock(&dev->mutex);
rcu_assign_pointer(dev->wcid[idx], NULL);
for (i = 0; i < ARRAY_SIZE(sta->txq); i++)
mt76_txq_remove(dev, sta->txq[i]);
mt76x02_mac_wcid_set_drop(dev, idx, true);
mt76_wcid_free(dev->wcid_mask, idx);
mt76x02_mac_wcid_setup(dev, idx, 0, NULL);
mutex_unlock(&dev->mutex);
return 0;
}
EXPORT_SYMBOL_GPL(mt76x02_sta_remove);
void mt76x02_vif_init(struct mt76_dev *dev, struct ieee80211_vif *vif,
unsigned int idx)
{
struct mt76x02_vif *mvif = (struct mt76x02_vif *) vif->drv_priv;
mvif->idx = idx;
mvif->group_wcid.idx = MT_VIF_WCID(idx);
mvif->group_wcid.hw_key_idx = -1;
mt76x02_txq_init(dev, vif->txq);
}
EXPORT_SYMBOL_GPL(mt76x02_vif_init);
int mt76x02_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
struct ieee80211_ampdu_params *params)
{
enum ieee80211_ampdu_mlme_action action = params->action;
struct ieee80211_sta *sta = params->sta;
struct mt76_dev *dev = hw->priv;
struct mt76x02_sta *msta = (struct mt76x02_sta *) sta->drv_priv;
struct ieee80211_txq *txq = sta->txq[params->tid];
u16 tid = params->tid;
u16 *ssn = ¶ms->ssn;
struct mt76_txq *mtxq;
if (!txq)
return -EINVAL;
mtxq = (struct mt76_txq *)txq->drv_priv;
switch (action) {
case IEEE80211_AMPDU_RX_START:
mt76_rx_aggr_start(dev, &msta->wcid, tid, *ssn, params->buf_size);
__mt76_set(dev, MT_WCID_ADDR(msta->wcid.idx) + 4, BIT(16 + tid));
break;
case IEEE80211_AMPDU_RX_STOP:
mt76_rx_aggr_stop(dev, &msta->wcid, tid);
__mt76_clear(dev, MT_WCID_ADDR(msta->wcid.idx) + 4, BIT(16 + tid));
break;
case IEEE80211_AMPDU_TX_OPERATIONAL:
mtxq->aggr = true;
mtxq->send_bar = false;
ieee80211_send_bar(vif, sta->addr, tid, mtxq->agg_ssn);
break;
case IEEE80211_AMPDU_TX_STOP_FLUSH:
case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
mtxq->aggr = false;
ieee80211_send_bar(vif, sta->addr, tid, mtxq->agg_ssn);
break;
case IEEE80211_AMPDU_TX_START:
mtxq->agg_ssn = *ssn << 4;
ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
break;
case IEEE80211_AMPDU_TX_STOP_CONT:
mtxq->aggr = false;
ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
break;
}
return 0;
}
EXPORT_SYMBOL_GPL(mt76x02_ampdu_action);
MODULE_LICENSE("Dual BSD/GPL");
|
