1 /* SPDX-License-Identifier: ISC */
2 /*
3 * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
4 * Copyright (C) 2018 Stanislaw Gruszka <stf_xl@wp.pl>
5 */
6
7 #ifndef __MT76X02_MAC_H
8 #define __MT76X02_MAC_H
9
10 struct mt76x02_dev;
11
12 struct mt76x02_tx_status {
13 u8 valid:1;
14 u8 success:1;
15 u8 aggr:1;
16 u8 ack_req:1;
17 u8 wcid;
18 u8 pktid;
19 u8 retry;
20 u16 rate;
21 } __packed __aligned(2);
22
23 #define MT_VIF_WCID(_n) (254 - ((_n) & 7))
24 #define MT_MAX_VIFS 8
25
26 #define MT_PKTID_RATE GENMASK(4, 0)
27 #define MT_PKTID_AC GENMASK(6, 5)
28
29 struct mt76x02_vif {
30 struct mt76_wcid group_wcid; /* must be first */
31 u8 idx;
32 };
33
34 DECLARE_EWMA(pktlen, 8, 8);
35
36 struct mt76x02_sta {
37 struct mt76_wcid wcid; /* must be first */
38
39 struct mt76x02_vif *vif;
40 struct mt76x02_tx_status status;
41 int n_frames;
42
43 struct ewma_pktlen pktlen;
44 };
45
46 #define MT_RXINFO_BA BIT(0)
47 #define MT_RXINFO_DATA BIT(1)
48 #define MT_RXINFO_NULL BIT(2)
49 #define MT_RXINFO_FRAG BIT(3)
50 #define MT_RXINFO_UNICAST BIT(4)
51 #define MT_RXINFO_MULTICAST BIT(5)
52 #define MT_RXINFO_BROADCAST BIT(6)
53 #define MT_RXINFO_MYBSS BIT(7)
54 #define MT_RXINFO_CRCERR BIT(8)
55 #define MT_RXINFO_ICVERR BIT(9)
56 #define MT_RXINFO_MICERR BIT(10)
57 #define MT_RXINFO_AMSDU BIT(11)
58 #define MT_RXINFO_HTC BIT(12)
59 #define MT_RXINFO_RSSI BIT(13)
60 #define MT_RXINFO_L2PAD BIT(14)
61 #define MT_RXINFO_AMPDU BIT(15)
62 #define MT_RXINFO_DECRYPT BIT(16)
63 #define MT_RXINFO_BSSIDX3 BIT(17)
64 #define MT_RXINFO_WAPI_KEY BIT(18)
65 #define MT_RXINFO_PN_LEN GENMASK(21, 19)
66 #define MT_RXINFO_SW_FTYPE0 BIT(22)
67 #define MT_RXINFO_SW_FTYPE1 BIT(23)
68 #define MT_RXINFO_PROBE_RESP BIT(24)
69 #define MT_RXINFO_BEACON BIT(25)
70 #define MT_RXINFO_DISASSOC BIT(26)
71 #define MT_RXINFO_DEAUTH BIT(27)
72 #define MT_RXINFO_ACTION BIT(28)
73 #define MT_RXINFO_TCP_SUM_ERR BIT(30)
74 #define MT_RXINFO_IP_SUM_ERR BIT(31)
75
76 #define MT_RXWI_CTL_WCID GENMASK(7, 0)
77 #define MT_RXWI_CTL_KEY_IDX GENMASK(9, 8)
78 #define MT_RXWI_CTL_BSS_IDX GENMASK(12, 10)
79 #define MT_RXWI_CTL_UDF GENMASK(15, 13)
80 #define MT_RXWI_CTL_MPDU_LEN GENMASK(29, 16)
81 #define MT_RXWI_CTL_EOF BIT(31)
82
83 #define MT_RXWI_TID GENMASK(3, 0)
84 #define MT_RXWI_SN GENMASK(15, 4)
85
86 #define MT_RXWI_RATE_INDEX GENMASK(5, 0)
87 #define MT_RXWI_RATE_LDPC BIT(6)
88 #define MT_RXWI_RATE_BW GENMASK(8, 7)
89 #define MT_RXWI_RATE_SGI BIT(9)
90 #define MT_RXWI_RATE_STBC BIT(10)
91 #define MT_RXWI_RATE_LDPC_EXSYM BIT(11)
92 #define MT_RXWI_RATE_PHY GENMASK(15, 13)
93
94 #define MT_RATE_INDEX_VHT_IDX GENMASK(3, 0)
95 #define MT_RATE_INDEX_VHT_NSS GENMASK(5, 4)
96
97 struct mt76x02_rxwi {
98 __le32 rxinfo;
99
100 __le32 ctl;
101
102 __le16 tid_sn;
103 __le16 rate;
104
105 u8 rssi[4];
106
107 __le32 bbp_rxinfo[4];
108 };
109
110 #define MT_TX_PWR_ADJ GENMASK(3, 0)
111
112 enum mt76x2_phy_bandwidth {
113 MT_PHY_BW_20,
114 MT_PHY_BW_40,
115 MT_PHY_BW_80,
116 };
117
118 #define MT_TXWI_FLAGS_FRAG BIT(0)
119 #define MT_TXWI_FLAGS_MMPS BIT(1)
120 #define MT_TXWI_FLAGS_CFACK BIT(2)
121 #define MT_TXWI_FLAGS_TS BIT(3)
122 #define MT_TXWI_FLAGS_AMPDU BIT(4)
123 #define MT_TXWI_FLAGS_MPDU_DENSITY GENMASK(7, 5)
124 #define MT_TXWI_FLAGS_TXOP GENMASK(9, 8)
125 #define MT_TXWI_FLAGS_NDPS BIT(10)
126 #define MT_TXWI_FLAGS_RTSBWSIG BIT(11)
127 #define MT_TXWI_FLAGS_NDP_BW GENMASK(13, 12)
128 #define MT_TXWI_FLAGS_SOUND BIT(14)
129 #define MT_TXWI_FLAGS_TX_RATE_LUT BIT(15)
130
131 #define MT_TXWI_ACK_CTL_REQ BIT(0)
132 #define MT_TXWI_ACK_CTL_NSEQ BIT(1)
133 #define MT_TXWI_ACK_CTL_BA_WINDOW GENMASK(7, 2)
134
135 struct mt76x02_txwi {
136 __le16 flags;
137 __le16 rate;
138 u8 ack_ctl;
139 u8 wcid;
140 __le16 len_ctl;
141 __le32 iv;
142 __le32 eiv;
143 u8 aid;
144 u8 txstream;
145 u8 ctl2;
146 u8 pktid;
147 } __packed __aligned(4);
148
mt76x02_wait_for_mac(struct mt76_dev * dev)149 static inline bool mt76x02_wait_for_mac(struct mt76_dev *dev)
150 {
151 const u32 MAC_CSR0 = 0x1000;
152 int i;
153
154 for (i = 0; i < 500; i++) {
155 if (test_bit(MT76_REMOVED, &dev->phy.state))
156 return false;
157
158 switch (dev->bus->rr(dev, MAC_CSR0)) {
159 case 0:
160 case ~0:
161 break;
162 default:
163 return true;
164 }
165 usleep_range(5000, 10000);
166 }
167 return false;
168 }
169
170 void mt76x02_mac_reset_counters(struct mt76x02_dev *dev);
171 void mt76x02_mac_set_short_preamble(struct mt76x02_dev *dev, bool enable);
172 int mt76x02_mac_shared_key_setup(struct mt76x02_dev *dev, u8 vif_idx,
173 u8 key_idx, struct ieee80211_key_conf *key);
174 int mt76x02_mac_wcid_set_key(struct mt76x02_dev *dev, u8 idx,
175 struct ieee80211_key_conf *key);
176 void mt76x02_mac_wcid_sync_pn(struct mt76x02_dev *dev, u8 idx,
177 struct ieee80211_key_conf *key);
178 void mt76x02_mac_wcid_setup(struct mt76x02_dev *dev, u8 idx, u8 vif_idx,
179 u8 *mac);
180 void mt76x02_mac_wcid_set_drop(struct mt76x02_dev *dev, u8 idx, bool drop);
181 void mt76x02_mac_wcid_set_rate(struct mt76x02_dev *dev, struct mt76_wcid *wcid,
182 const struct ieee80211_tx_rate *rate);
183 bool mt76x02_mac_load_tx_status(struct mt76x02_dev *dev,
184 struct mt76x02_tx_status *stat);
185 void mt76x02_send_tx_status(struct mt76x02_dev *dev,
186 struct mt76x02_tx_status *stat, u8 *update);
187 int mt76x02_mac_process_rx(struct mt76x02_dev *dev, struct sk_buff *skb,
188 void *rxi);
189 void mt76x02_mac_set_tx_protection(struct mt76x02_dev *dev, bool legacy_prot,
190 int ht_mode);
191 void mt76x02_mac_set_rts_thresh(struct mt76x02_dev *dev, u32 val);
192 void mt76x02_mac_setaddr(struct mt76x02_dev *dev, const u8 *addr);
193 void mt76x02_mac_write_txwi(struct mt76x02_dev *dev, struct mt76x02_txwi *txwi,
194 struct sk_buff *skb, struct mt76_wcid *wcid,
195 struct ieee80211_sta *sta, int len);
196 void mt76x02_mac_poll_tx_status(struct mt76x02_dev *dev, bool irq);
197 void mt76x02_tx_complete_skb(struct mt76_dev *mdev, struct mt76_queue_entry *e);
198 void mt76x02_update_channel(struct mt76_dev *mdev);
199 void mt76x02_mac_work(struct work_struct *work);
200
201 void mt76x02_mac_cc_reset(struct mt76x02_dev *dev);
202 void mt76x02_mac_set_bssid(struct mt76x02_dev *dev, u8 idx, const u8 *addr);
203 void mt76x02_mac_set_beacon(struct mt76x02_dev *dev, struct sk_buff *skb);
204 void mt76x02_mac_set_beacon_enable(struct mt76x02_dev *dev,
205 struct ieee80211_vif *vif, bool enable);
206
207 void mt76x02_edcca_init(struct mt76x02_dev *dev);
208 #endif
209