summaryrefslogtreecommitdiff
path: root/drivers/net/wireless/mediatek/mt76/mt76x02_mac.h
blob: 0cfbaca50210d6754ad4250143e71bfb703ac687 (plain)
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
/* SPDX-License-Identifier: ISC */
/*
 * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
 * Copyright (C) 2018 Stanislaw Gruszka <stf_xl@wp.pl>
 */

#ifndef __MT76X02_MAC_H
#define __MT76X02_MAC_H

struct mt76x02_dev;

struct mt76x02_tx_status {
	u8 valid:1;
	u8 success:1;
	u8 aggr:1;
	u8 ack_req:1;
	u8 wcid;
	u8 pktid;
	u8 retry;
	u16 rate;
} __packed __aligned(2);

#define MT_VIF_WCID(_n)		(254 - ((_n) & 7))
#define MT_MAX_VIFS		8

#define MT_PKTID_RATE		GENMASK(4, 0)
#define MT_PKTID_AC		GENMASK(6, 5)

struct mt76x02_vif {
	struct mt76_wcid group_wcid; /* must be first */
	u8 idx;
};

DECLARE_EWMA(pktlen, 8, 8);

struct mt76x02_sta {
	struct mt76_wcid wcid; /* must be first */

	struct mt76x02_vif *vif;
	struct mt76x02_tx_status status;
	int n_frames;

	struct ewma_pktlen pktlen;
};

#define MT_RXINFO_BA			BIT(0)
#define MT_RXINFO_DATA			BIT(1)
#define MT_RXINFO_NULL			BIT(2)
#define MT_RXINFO_FRAG			BIT(3)
#define MT_RXINFO_UNICAST		BIT(4)
#define MT_RXINFO_MULTICAST		BIT(5)
#define MT_RXINFO_BROADCAST		BIT(6)
#define MT_RXINFO_MYBSS			BIT(7)
#define MT_RXINFO_CRCERR		BIT(8)
#define MT_RXINFO_ICVERR		BIT(9)
#define MT_RXINFO_MICERR		BIT(10)
#define MT_RXINFO_AMSDU			BIT(11)
#define MT_RXINFO_HTC			BIT(12)
#define MT_RXINFO_RSSI			BIT(13)
#define MT_RXINFO_L2PAD			BIT(14)
#define MT_RXINFO_AMPDU			BIT(15)
#define MT_RXINFO_DECRYPT		BIT(16)
#define MT_RXINFO_BSSIDX3		BIT(17)
#define MT_RXINFO_WAPI_KEY		BIT(18)
#define MT_RXINFO_PN_LEN		GENMASK(21, 19)
#define MT_RXINFO_SW_FTYPE0		BIT(22)
#define MT_RXINFO_SW_FTYPE1		BIT(23)
#define MT_RXINFO_PROBE_RESP		BIT(24)
#define MT_RXINFO_BEACON		BIT(25)
#define MT_RXINFO_DISASSOC		BIT(26)
#define MT_RXINFO_DEAUTH		BIT(27)
#define MT_RXINFO_ACTION		BIT(28)
#define MT_RXINFO_TCP_SUM_ERR		BIT(30)
#define MT_RXINFO_IP_SUM_ERR		BIT(31)

#define MT_RXWI_CTL_WCID		GENMASK(7, 0)
#define MT_RXWI_CTL_KEY_IDX		GENMASK(9, 8)
#define MT_RXWI_CTL_BSS_IDX		GENMASK(12, 10)
#define MT_RXWI_CTL_UDF			GENMASK(15, 13)
#define MT_RXWI_CTL_MPDU_LEN		GENMASK(29, 16)
#define MT_RXWI_CTL_EOF			BIT(31)

#define MT_RXWI_TID			GENMASK(3, 0)
#define MT_RXWI_SN			GENMASK(15, 4)

#define MT_RXWI_RATE_INDEX		GENMASK(5, 0)
#define MT_RXWI_RATE_LDPC		BIT(6)
#define MT_RXWI_RATE_BW			GENMASK(8, 7)
#define MT_RXWI_RATE_SGI		BIT(9)
#define MT_RXWI_RATE_STBC		BIT(10)
#define MT_RXWI_RATE_LDPC_EXSYM		BIT(11)
#define MT_RXWI_RATE_PHY		GENMASK(15, 13)

#define MT_RATE_INDEX_VHT_IDX		GENMASK(3, 0)
#define MT_RATE_INDEX_VHT_NSS		GENMASK(5, 4)

struct mt76x02_rxwi {
	__le32 rxinfo;

	__le32 ctl;

	__le16 tid_sn;
	__le16 rate;

	u8 rssi[4];

	__le32 bbp_rxinfo[4];
};

#define MT_TX_PWR_ADJ			GENMASK(3, 0)

enum mt76x2_phy_bandwidth {
	MT_PHY_BW_20,
	MT_PHY_BW_40,
	MT_PHY_BW_80,
};

#define MT_TXWI_FLAGS_FRAG		BIT(0)
#define MT_TXWI_FLAGS_MMPS		BIT(1)
#define MT_TXWI_FLAGS_CFACK		BIT(2)
#define MT_TXWI_FLAGS_TS		BIT(3)
#define MT_TXWI_FLAGS_AMPDU		BIT(4)
#define MT_TXWI_FLAGS_MPDU_DENSITY	GENMASK(7, 5)
#define MT_TXWI_FLAGS_TXOP		GENMASK(9, 8)
#define MT_TXWI_FLAGS_NDPS		BIT(10)
#define MT_TXWI_FLAGS_RTSBWSIG		BIT(11)
#define MT_TXWI_FLAGS_NDP_BW		GENMASK(13, 12)
#define MT_TXWI_FLAGS_SOUND		BIT(14)
#define MT_TXWI_FLAGS_TX_RATE_LUT	BIT(15)

#define MT_TXWI_ACK_CTL_REQ		BIT(0)
#define MT_TXWI_ACK_CTL_NSEQ		BIT(1)
#define MT_TXWI_ACK_CTL_BA_WINDOW	GENMASK(7, 2)

struct mt76x02_txwi {
	__le16 flags;
	__le16 rate;
	u8 ack_ctl;
	u8 wcid;
	__le16 len_ctl;
	__le32 iv;
	__le32 eiv;
	u8 aid;
	u8 txstream;
	u8 ctl2;
	u8 pktid;
} __packed __aligned(4);

static inline bool mt76x02_wait_for_mac(struct mt76_dev *dev)
{
	const u32 MAC_CSR0 = 0x1000;
	int i;

	for (i = 0; i < 500; i++) {
		if (test_bit(MT76_REMOVED, &dev->phy.state))
			return false;

		switch (dev->bus->rr(dev, MAC_CSR0)) {
		case 0:
		case ~0:
			break;
		default:
			return true;
		}
		usleep_range(5000, 10000);
	}
	return false;
}

void mt76x02_mac_reset_counters(struct mt76x02_dev *dev);
void mt76x02_mac_set_short_preamble(struct mt76x02_dev *dev, bool enable);
int mt76x02_mac_shared_key_setup(struct mt76x02_dev *dev, u8 vif_idx,
				 u8 key_idx, struct ieee80211_key_conf *key);
int mt76x02_mac_wcid_set_key(struct mt76x02_dev *dev, u8 idx,
			     struct ieee80211_key_conf *key);
void mt76x02_mac_wcid_sync_pn(struct mt76x02_dev *dev, u8 idx,
			      struct ieee80211_key_conf *key);
void mt76x02_mac_wcid_setup(struct mt76x02_dev *dev, u8 idx, u8 vif_idx,
			    u8 *mac);
void mt76x02_mac_wcid_set_drop(struct mt76x02_dev *dev, u8 idx, bool drop);
void mt76x02_mac_wcid_set_rate(struct mt76x02_dev *dev, struct mt76_wcid *wcid,
			       const struct ieee80211_tx_rate *rate);
bool mt76x02_mac_load_tx_status(struct mt76x02_dev *dev,
				struct mt76x02_tx_status *stat);
void mt76x02_send_tx_status(struct mt76x02_dev *dev,
			    struct mt76x02_tx_status *stat, u8 *update);
int mt76x02_mac_process_rx(struct mt76x02_dev *dev, struct sk_buff *skb,
			   void *rxi);
void mt76x02_mac_set_tx_protection(struct mt76x02_dev *dev, bool legacy_prot,
				   int ht_mode);
void mt76x02_mac_set_rts_thresh(struct mt76x02_dev *dev, u32 val);
void mt76x02_mac_setaddr(struct mt76x02_dev *dev, const u8 *addr);
void mt76x02_mac_write_txwi(struct mt76x02_dev *dev, struct mt76x02_txwi *txwi,
			    struct sk_buff *skb, struct mt76_wcid *wcid,
			    struct ieee80211_sta *sta, int len);
void mt76x02_mac_poll_tx_status(struct mt76x02_dev *dev, bool irq);
void mt76x02_tx_complete_skb(struct mt76_dev *mdev, struct mt76_queue_entry *e);
void mt76x02_update_channel(struct mt76_dev *mdev);
void mt76x02_mac_work(struct work_struct *work);

void mt76x02_mac_cc_reset(struct mt76x02_dev *dev);
void mt76x02_mac_set_bssid(struct mt76x02_dev *dev, u8 idx, const u8 *addr);
void mt76x02_mac_set_beacon(struct mt76x02_dev *dev, struct sk_buff *skb);
void mt76x02_mac_set_beacon_enable(struct mt76x02_dev *dev,
				   struct ieee80211_vif *vif, bool enable);

void mt76x02_edcca_init(struct mt76x02_dev *dev);
#endif