1 /*
2 * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
3 *
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
17 #ifndef __MT76x2_MAC_H
18 #define __MT76x2_MAC_H
19
20 #include "mt76.h"
21
22 struct mt76x2_dev;
23 struct mt76x2_sta;
24 struct mt76x2_vif;
25 struct mt76x2_txwi;
26
27 struct mt76x2_tx_status {
28 u8 valid:1;
29 u8 success:1;
30 u8 aggr:1;
31 u8 ack_req:1;
32 u8 wcid;
33 u8 pktid;
34 u8 retry;
35 u16 rate;
36 } __packed __aligned(2);
37
38 struct mt76x2_tx_info {
39 unsigned long jiffies;
40 u8 tries;
41
42 u8 wcid;
43 u8 pktid;
44 u8 retry;
45 };
46
47 struct mt76x2_rxwi {
48 __le32 rxinfo;
49
50 __le32 ctl;
51
52 __le16 tid_sn;
53 __le16 rate;
54
55 u8 rssi[4];
56
57 __le32 bbp_rxinfo[4];
58 };
59
60 #define MT_RXINFO_BA BIT(0)
61 #define MT_RXINFO_DATA BIT(1)
62 #define MT_RXINFO_NULL BIT(2)
63 #define MT_RXINFO_FRAG BIT(3)
64 #define MT_RXINFO_UNICAST BIT(4)
65 #define MT_RXINFO_MULTICAST BIT(5)
66 #define MT_RXINFO_BROADCAST BIT(6)
67 #define MT_RXINFO_MYBSS BIT(7)
68 #define MT_RXINFO_CRCERR BIT(8)
69 #define MT_RXINFO_ICVERR BIT(9)
70 #define MT_RXINFO_MICERR BIT(10)
71 #define MT_RXINFO_AMSDU BIT(11)
72 #define MT_RXINFO_HTC BIT(12)
73 #define MT_RXINFO_RSSI BIT(13)
74 #define MT_RXINFO_L2PAD BIT(14)
75 #define MT_RXINFO_AMPDU BIT(15)
76 #define MT_RXINFO_DECRYPT BIT(16)
77 #define MT_RXINFO_BSSIDX3 BIT(17)
78 #define MT_RXINFO_WAPI_KEY BIT(18)
79 #define MT_RXINFO_PN_LEN GENMASK(21, 19)
80 #define MT_RXINFO_SW_FTYPE0 BIT(22)
81 #define MT_RXINFO_SW_FTYPE1 BIT(23)
82 #define MT_RXINFO_PROBE_RESP BIT(24)
83 #define MT_RXINFO_BEACON BIT(25)
84 #define MT_RXINFO_DISASSOC BIT(26)
85 #define MT_RXINFO_DEAUTH BIT(27)
86 #define MT_RXINFO_ACTION BIT(28)
87 #define MT_RXINFO_TCP_SUM_ERR BIT(30)
88 #define MT_RXINFO_IP_SUM_ERR BIT(31)
89
90 #define MT_RXWI_CTL_WCID GENMASK(7, 0)
91 #define MT_RXWI_CTL_KEY_IDX GENMASK(9, 8)
92 #define MT_RXWI_CTL_BSS_IDX GENMASK(12, 10)
93 #define MT_RXWI_CTL_UDF GENMASK(15, 13)
94 #define MT_RXWI_CTL_MPDU_LEN GENMASK(29, 16)
95 #define MT_RXWI_CTL_EOF BIT(31)
96
97 #define MT_RXWI_TID GENMASK(3, 0)
98 #define MT_RXWI_SN GENMASK(15, 4)
99
100 #define MT_RXWI_RATE_INDEX GENMASK(5, 0)
101 #define MT_RXWI_RATE_LDPC BIT(6)
102 #define MT_RXWI_RATE_BW GENMASK(8, 7)
103 #define MT_RXWI_RATE_SGI BIT(9)
104 #define MT_RXWI_RATE_STBC BIT(10)
105 #define MT_RXWI_RATE_LDPC_EXSYM BIT(11)
106 #define MT_RXWI_RATE_PHY GENMASK(15, 13)
107
108 #define MT_RATE_INDEX_VHT_IDX GENMASK(3, 0)
109 #define MT_RATE_INDEX_VHT_NSS GENMASK(5, 4)
110
111 #define MT_TX_PWR_ADJ GENMASK(3, 0)
112
113 enum mt76x2_phy_bandwidth {
114 MT_PHY_BW_20,
115 MT_PHY_BW_40,
116 MT_PHY_BW_80,
117 };
118
119 #define MT_TXWI_FLAGS_FRAG BIT(0)
120 #define MT_TXWI_FLAGS_MMPS BIT(1)
121 #define MT_TXWI_FLAGS_CFACK BIT(2)
122 #define MT_TXWI_FLAGS_TS BIT(3)
123 #define MT_TXWI_FLAGS_AMPDU BIT(4)
124 #define MT_TXWI_FLAGS_MPDU_DENSITY GENMASK(7, 5)
125 #define MT_TXWI_FLAGS_TXOP GENMASK(9, 8)
126 #define MT_TXWI_FLAGS_NDPS BIT(10)
127 #define MT_TXWI_FLAGS_RTSBWSIG BIT(11)
128 #define MT_TXWI_FLAGS_NDP_BW GENMASK(13, 12)
129 #define MT_TXWI_FLAGS_SOUND BIT(14)
130 #define MT_TXWI_FLAGS_TX_RATE_LUT BIT(15)
131
132 #define MT_TXWI_ACK_CTL_REQ BIT(0)
133 #define MT_TXWI_ACK_CTL_NSEQ BIT(1)
134 #define MT_TXWI_ACK_CTL_BA_WINDOW GENMASK(7, 2)
135
136 #define MT_TXWI_PKTID_PROBE BIT(7)
137
138 struct mt76x2_txwi {
139 __le16 flags;
140 __le16 rate;
141 u8 ack_ctl;
142 u8 wcid;
143 __le16 len_ctl;
144 __le32 iv;
145 __le32 eiv;
146 u8 aid;
147 u8 txstream;
148 u8 ctl2;
149 u8 pktid;
150 } __packed __aligned(4);
151
152 static inline struct mt76x2_tx_info *
mt76x2_skb_tx_info(struct sk_buff * skb)153 mt76x2_skb_tx_info(struct sk_buff *skb)
154 {
155 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
156
157 return (void *) info->status.status_driver_data;
158 }
159
160 int mt76x2_mac_start(struct mt76x2_dev *dev);
161 void mt76x2_mac_stop(struct mt76x2_dev *dev, bool force);
162 void mt76x2_mac_resume(struct mt76x2_dev *dev);
163 void mt76x2_mac_set_bssid(struct mt76x2_dev *dev, u8 idx, const u8 *addr);
164
165 int mt76x2_mac_process_rx(struct mt76x2_dev *dev, struct sk_buff *skb,
166 void *rxi);
167 void mt76x2_mac_write_txwi(struct mt76x2_dev *dev, struct mt76x2_txwi *txwi,
168 struct sk_buff *skb, struct mt76_wcid *wcid,
169 struct ieee80211_sta *sta, int len);
170 void mt76x2_mac_wcid_setup(struct mt76x2_dev *dev, u8 idx, u8 vif_idx, u8 *mac);
171 int mt76x2_mac_wcid_set_key(struct mt76x2_dev *dev, u8 idx,
172 struct ieee80211_key_conf *key);
173 void mt76x2_mac_wcid_set_rate(struct mt76x2_dev *dev, struct mt76_wcid *wcid,
174 const struct ieee80211_tx_rate *rate);
175 void mt76x2_mac_wcid_set_drop(struct mt76x2_dev *dev, u8 idx, bool drop);
176
177 int mt76x2_mac_shared_key_setup(struct mt76x2_dev *dev, u8 vif_idx, u8 key_idx,
178 struct ieee80211_key_conf *key);
179
180 int mt76x2_mac_set_beacon(struct mt76x2_dev *dev, u8 vif_idx,
181 struct sk_buff *skb);
182 void mt76x2_mac_set_beacon_enable(struct mt76x2_dev *dev, u8 vif_idx, bool val);
183
184 void mt76x2_mac_poll_tx_status(struct mt76x2_dev *dev, bool irq);
185 void mt76x2_mac_process_tx_status_fifo(struct mt76x2_dev *dev);
186
187 void mt76x2_mac_work(struct work_struct *work);
188
189 #endif
190
