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_H
8 #define __MT76x02_H
9
10 #include <linux/kfifo.h>
11
12 #include "mt76.h"
13 #include "mt76x02_regs.h"
14 #include "mt76x02_mac.h"
15 #include "mt76x02_dfs.h"
16 #include "mt76x02_dma.h"
17
18 #define MT76x02_TX_RING_SIZE 512
19 #define MT76x02_PSD_RING_SIZE 128
20 #define MT76x02_N_WCIDS 128
21 #define MT_CALIBRATE_INTERVAL HZ
22 #define MT_MAC_WORK_INTERVAL (HZ / 10)
23
24 #define MT_WATCHDOG_TIME (HZ / 10)
25 #define MT_TX_HANG_TH 10
26
27 #define MT_MAX_CHAINS 2
28 struct mt76x02_rx_freq_cal {
29 s8 high_gain[MT_MAX_CHAINS];
30 s8 rssi_offset[MT_MAX_CHAINS];
31 s8 lna_gain;
32 u32 mcu_gain;
33 s16 temp_offset;
34 u8 freq_offset;
35 };
36
37 struct mt76x02_calibration {
38 struct mt76x02_rx_freq_cal rx;
39
40 u8 agc_gain_init[MT_MAX_CHAINS];
41 u8 agc_gain_cur[MT_MAX_CHAINS];
42
43 u16 false_cca;
44 s8 avg_rssi_all;
45 s8 agc_gain_adjust;
46 s8 agc_lowest_gain;
47 s8 low_gain;
48
49 s8 temp_vco;
50 s8 temp;
51
52 bool init_cal_done;
53 bool tssi_cal_done;
54 bool tssi_comp_pending;
55 bool dpd_cal_done;
56 bool channel_cal_done;
57 bool gain_init_done;
58
59 int tssi_target;
60 s8 tssi_dc;
61 };
62
63 struct mt76x02_beacon_ops {
64 unsigned int nslots;
65 unsigned int slot_size;
66 void (*pre_tbtt_enable)(struct mt76x02_dev *dev, bool en);
67 void (*beacon_enable)(struct mt76x02_dev *dev, bool en);
68 };
69
70 #define mt76x02_beacon_enable(dev, enable) \
71 (dev)->beacon_ops->beacon_enable(dev, enable)
72 #define mt76x02_pre_tbtt_enable(dev, enable) \
73 (dev)->beacon_ops->pre_tbtt_enable(dev, enable)
74
75 struct mt76x02_dev {
76 union { /* must be first */
77 struct mt76_dev mt76;
78 struct mt76_phy mphy;
79 };
80
81 struct mac_address macaddr_list[8];
82
83 struct mutex phy_mutex;
84
85 u16 chainmask;
86
87 u8 txdone_seq;
88 DECLARE_KFIFO_PTR(txstatus_fifo, struct mt76x02_tx_status);
89 spinlock_t txstatus_fifo_lock;
90 u32 tx_airtime;
91 u32 ampdu_ref;
92
93 struct sk_buff *rx_head;
94
95 struct delayed_work cal_work;
96 struct delayed_work wdt_work;
97
98 struct hrtimer pre_tbtt_timer;
99 struct work_struct pre_tbtt_work;
100
101 const struct mt76x02_beacon_ops *beacon_ops;
102
103 u8 beacon_data_count;
104
105 u8 tbtt_count;
106
107 u32 tx_hang_reset;
108 u8 tx_hang_check;
109 u8 mcu_timeout;
110
111 struct mt76x02_calibration cal;
112
113 int txpower_conf;
114 s8 target_power;
115 s8 target_power_delta[2];
116 bool enable_tpc;
117
118 bool no_2ghz;
119
120 s16 coverage_class;
121 u8 slottime;
122
123 struct mt76x02_dfs_pattern_detector dfs_pd;
124
125 /* edcca monitor */
126 unsigned long ed_trigger_timeout;
127 bool ed_tx_blocked;
128 bool ed_monitor;
129 u8 ed_monitor_enabled;
130 u8 ed_monitor_learning;
131 u8 ed_trigger;
132 u8 ed_silent;
133 ktime_t ed_time;
134 };
135
136 extern struct ieee80211_rate mt76x02_rates[12];
137
138 void mt76x02_init_device(struct mt76x02_dev *dev);
139 void mt76x02_configure_filter(struct ieee80211_hw *hw,
140 unsigned int changed_flags,
141 unsigned int *total_flags, u64 multicast);
142 int mt76x02_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif,
143 struct ieee80211_sta *sta);
144 void mt76x02_sta_remove(struct mt76_dev *mdev, struct ieee80211_vif *vif,
145 struct ieee80211_sta *sta);
146
147 void mt76x02_config_mac_addr_list(struct mt76x02_dev *dev);
148
149 int mt76x02_add_interface(struct ieee80211_hw *hw,
150 struct ieee80211_vif *vif);
151 void mt76x02_remove_interface(struct ieee80211_hw *hw,
152 struct ieee80211_vif *vif);
153
154 int mt76x02_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
155 struct ieee80211_ampdu_params *params);
156 int mt76x02_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
157 struct ieee80211_vif *vif, struct ieee80211_sta *sta,
158 struct ieee80211_key_conf *key);
159 int mt76x02_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
160 u16 queue, const struct ieee80211_tx_queue_params *params);
161 void mt76x02_sta_rate_tbl_update(struct ieee80211_hw *hw,
162 struct ieee80211_vif *vif,
163 struct ieee80211_sta *sta);
164 s8 mt76x02_tx_get_max_txpwr_adj(struct mt76x02_dev *dev,
165 const struct ieee80211_tx_rate *rate);
166 s8 mt76x02_tx_get_txpwr_adj(struct mt76x02_dev *dev, s8 txpwr,
167 s8 max_txpwr_adj);
168 void mt76x02_wdt_work(struct work_struct *work);
169 void mt76x02_tx_set_txpwr_auto(struct mt76x02_dev *dev, s8 txpwr);
170 void mt76x02_set_tx_ackto(struct mt76x02_dev *dev);
171 void mt76x02_set_coverage_class(struct ieee80211_hw *hw,
172 s16 coverage_class);
173 int mt76x02_set_rts_threshold(struct ieee80211_hw *hw, u32 val);
174 void mt76x02_remove_hdr_pad(struct sk_buff *skb, int len);
175 bool mt76x02_tx_status_data(struct mt76_dev *mdev, u8 *update);
176 void mt76x02_queue_rx_skb(struct mt76_dev *mdev, enum mt76_rxq_id q,
177 struct sk_buff *skb);
178 void mt76x02_rx_poll_complete(struct mt76_dev *mdev, enum mt76_rxq_id q);
179 irqreturn_t mt76x02_irq_handler(int irq, void *dev_instance);
180 void mt76x02_tx(struct ieee80211_hw *hw, struct ieee80211_tx_control *control,
181 struct sk_buff *skb);
182 int mt76x02_tx_prepare_skb(struct mt76_dev *mdev, void *txwi,
183 enum mt76_txq_id qid, struct mt76_wcid *wcid,
184 struct ieee80211_sta *sta,
185 struct mt76_tx_info *tx_info);
186 void mt76x02_sw_scan_complete(struct ieee80211_hw *hw,
187 struct ieee80211_vif *vif);
188 void mt76x02_sta_ps(struct mt76_dev *dev, struct ieee80211_sta *sta, bool ps);
189 void mt76x02_bss_info_changed(struct ieee80211_hw *hw,
190 struct ieee80211_vif *vif,
191 struct ieee80211_bss_conf *info, u32 changed);
192 void mt76x02_reconfig_complete(struct ieee80211_hw *hw,
193 enum ieee80211_reconfig_type reconfig_type);
194
195 struct beacon_bc_data {
196 struct mt76x02_dev *dev;
197 struct sk_buff_head q;
198 struct sk_buff *tail[8];
199 };
200
201 void mt76x02_init_beacon_config(struct mt76x02_dev *dev);
202 void mt76x02e_init_beacon_config(struct mt76x02_dev *dev);
203 void mt76x02_resync_beacon_timer(struct mt76x02_dev *dev);
204 void mt76x02_update_beacon_iter(void *priv, u8 *mac, struct ieee80211_vif *vif);
205 void mt76x02_enqueue_buffered_bc(struct mt76x02_dev *dev,
206 struct beacon_bc_data *data,
207 int max_nframes);
208
209 void mt76x02_mac_start(struct mt76x02_dev *dev);
210
211 void mt76x02_init_debugfs(struct mt76x02_dev *dev);
212
is_mt76x0(struct mt76x02_dev * dev)213 static inline bool is_mt76x0(struct mt76x02_dev *dev)
214 {
215 return mt76_chip(&dev->mt76) == 0x7610 ||
216 mt76_chip(&dev->mt76) == 0x7630 ||
217 mt76_chip(&dev->mt76) == 0x7650;
218 }
219
is_mt76x2(struct mt76x02_dev * dev)220 static inline bool is_mt76x2(struct mt76x02_dev *dev)
221 {
222 return mt76_chip(&dev->mt76) == 0x7612 ||
223 mt76_chip(&dev->mt76) == 0x7632 ||
224 mt76_chip(&dev->mt76) == 0x7662 ||
225 mt76_chip(&dev->mt76) == 0x7602;
226 }
227
mt76x02_irq_enable(struct mt76x02_dev * dev,u32 mask)228 static inline void mt76x02_irq_enable(struct mt76x02_dev *dev, u32 mask)
229 {
230 mt76_set_irq_mask(&dev->mt76, MT_INT_MASK_CSR, 0, mask);
231 }
232
mt76x02_irq_disable(struct mt76x02_dev * dev,u32 mask)233 static inline void mt76x02_irq_disable(struct mt76x02_dev *dev, u32 mask)
234 {
235 mt76_set_irq_mask(&dev->mt76, MT_INT_MASK_CSR, mask, 0);
236 }
237
238 static inline bool
mt76x02_wait_for_txrx_idle(struct mt76_dev * dev)239 mt76x02_wait_for_txrx_idle(struct mt76_dev *dev)
240 {
241 return __mt76_poll_msec(dev, MT_MAC_STATUS,
242 MT_MAC_STATUS_TX | MT_MAC_STATUS_RX,
243 0, 100);
244 }
245
246 static inline struct mt76x02_sta *
mt76x02_rx_get_sta(struct mt76_dev * dev,u8 idx)247 mt76x02_rx_get_sta(struct mt76_dev *dev, u8 idx)
248 {
249 struct mt76_wcid *wcid;
250
251 if (idx >= MT76x02_N_WCIDS)
252 return NULL;
253
254 wcid = rcu_dereference(dev->wcid[idx]);
255 if (!wcid)
256 return NULL;
257
258 return container_of(wcid, struct mt76x02_sta, wcid);
259 }
260
261 static inline struct mt76_wcid *
mt76x02_rx_get_sta_wcid(struct mt76x02_sta * sta,bool unicast)262 mt76x02_rx_get_sta_wcid(struct mt76x02_sta *sta, bool unicast)
263 {
264 if (!sta)
265 return NULL;
266
267 if (unicast)
268 return &sta->wcid;
269 else
270 return &sta->vif->group_wcid;
271 }
272
273 #endif /* __MT76x02_H */
274