xref: /linux/drivers/net/wireless/mediatek/mt76/mt76x02.h (revision 6fdcba32711044c35c0e1b094cbd8f3f0b4472c9)
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 MT_CALIBRATE_INTERVAL	HZ
19 #define MT_MAC_WORK_INTERVAL	(HZ / 10)
20 
21 #define MT_WATCHDOG_TIME	(HZ / 10)
22 #define MT_TX_HANG_TH		10
23 
24 #define MT_MAX_CHAINS		2
25 struct mt76x02_rx_freq_cal {
26 	s8 high_gain[MT_MAX_CHAINS];
27 	s8 rssi_offset[MT_MAX_CHAINS];
28 	s8 lna_gain;
29 	u32 mcu_gain;
30 	s16 temp_offset;
31 	u8 freq_offset;
32 };
33 
34 struct mt76x02_calibration {
35 	struct mt76x02_rx_freq_cal rx;
36 
37 	u8 agc_gain_init[MT_MAX_CHAINS];
38 	u8 agc_gain_cur[MT_MAX_CHAINS];
39 
40 	u16 false_cca;
41 	s8 avg_rssi_all;
42 	s8 agc_gain_adjust;
43 	s8 agc_lowest_gain;
44 	s8 low_gain;
45 
46 	s8 temp_vco;
47 	s8 temp;
48 
49 	bool init_cal_done;
50 	bool tssi_cal_done;
51 	bool tssi_comp_pending;
52 	bool dpd_cal_done;
53 	bool channel_cal_done;
54 	bool gain_init_done;
55 
56 	int tssi_target;
57 	s8 tssi_dc;
58 };
59 
60 struct mt76x02_beacon_ops {
61 	unsigned int nslots;
62 	unsigned int slot_size;
63 	void (*pre_tbtt_enable)(struct mt76x02_dev *dev, bool en);
64 	void (*beacon_enable)(struct mt76x02_dev *dev, bool en);
65 };
66 
67 #define mt76x02_beacon_enable(dev, enable)	\
68 	(dev)->beacon_ops->beacon_enable(dev, enable)
69 #define mt76x02_pre_tbtt_enable(dev, enable)	\
70 	(dev)->beacon_ops->pre_tbtt_enable(dev, enable)
71 
72 struct mt76x02_dev {
73 	struct mt76_dev mt76; /* must be first */
74 
75 	struct mac_address macaddr_list[8];
76 
77 	struct mutex phy_mutex;
78 
79 	u16 vif_mask;
80 
81 	u8 txdone_seq;
82 	DECLARE_KFIFO_PTR(txstatus_fifo, struct mt76x02_tx_status);
83 	spinlock_t txstatus_fifo_lock;
84 	u32 tx_airtime;
85 
86 	struct sk_buff *rx_head;
87 
88 	struct delayed_work cal_work;
89 	struct delayed_work wdt_work;
90 
91 	struct hrtimer pre_tbtt_timer;
92 	struct work_struct pre_tbtt_work;
93 
94 	const struct mt76x02_beacon_ops *beacon_ops;
95 
96 	struct sk_buff *beacons[8];
97 	u8 beacon_data_mask;
98 
99 	u8 tbtt_count;
100 
101 	u32 tx_hang_reset;
102 	u8 tx_hang_check;
103 	u8 mcu_timeout;
104 
105 	struct mt76x02_calibration cal;
106 
107 	s8 target_power;
108 	s8 target_power_delta[2];
109 	bool enable_tpc;
110 
111 	bool no_2ghz;
112 
113 	u8 coverage_class;
114 	u8 slottime;
115 
116 	struct mt76x02_dfs_pattern_detector dfs_pd;
117 
118 	/* edcca monitor */
119 	unsigned long ed_trigger_timeout;
120 	bool ed_tx_blocked;
121 	bool ed_monitor;
122 	u8 ed_monitor_enabled;
123 	u8 ed_monitor_learning;
124 	u8 ed_trigger;
125 	u8 ed_silent;
126 	ktime_t ed_time;
127 };
128 
129 extern struct ieee80211_rate mt76x02_rates[12];
130 
131 void mt76x02_init_device(struct mt76x02_dev *dev);
132 void mt76x02_configure_filter(struct ieee80211_hw *hw,
133 			      unsigned int changed_flags,
134 			      unsigned int *total_flags, u64 multicast);
135 int mt76x02_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif,
136 		    struct ieee80211_sta *sta);
137 void mt76x02_sta_remove(struct mt76_dev *mdev, struct ieee80211_vif *vif,
138 			struct ieee80211_sta *sta);
139 
140 void mt76x02_config_mac_addr_list(struct mt76x02_dev *dev);
141 
142 int mt76x02_add_interface(struct ieee80211_hw *hw,
143 			  struct ieee80211_vif *vif);
144 void mt76x02_remove_interface(struct ieee80211_hw *hw,
145 			      struct ieee80211_vif *vif);
146 
147 int mt76x02_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
148 			 struct ieee80211_ampdu_params *params);
149 int mt76x02_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
150 		    struct ieee80211_vif *vif, struct ieee80211_sta *sta,
151 		    struct ieee80211_key_conf *key);
152 int mt76x02_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
153 		    u16 queue, const struct ieee80211_tx_queue_params *params);
154 void mt76x02_sta_rate_tbl_update(struct ieee80211_hw *hw,
155 				 struct ieee80211_vif *vif,
156 				 struct ieee80211_sta *sta);
157 s8 mt76x02_tx_get_max_txpwr_adj(struct mt76x02_dev *dev,
158 				const struct ieee80211_tx_rate *rate);
159 s8 mt76x02_tx_get_txpwr_adj(struct mt76x02_dev *dev, s8 txpwr,
160 			    s8 max_txpwr_adj);
161 void mt76x02_wdt_work(struct work_struct *work);
162 void mt76x02_tx_set_txpwr_auto(struct mt76x02_dev *dev, s8 txpwr);
163 void mt76x02_set_tx_ackto(struct mt76x02_dev *dev);
164 void mt76x02_set_coverage_class(struct ieee80211_hw *hw,
165 				s16 coverage_class);
166 int mt76x02_set_rts_threshold(struct ieee80211_hw *hw, u32 val);
167 void mt76x02_remove_hdr_pad(struct sk_buff *skb, int len);
168 bool mt76x02_tx_status_data(struct mt76_dev *mdev, u8 *update);
169 void mt76x02_queue_rx_skb(struct mt76_dev *mdev, enum mt76_rxq_id q,
170 			  struct sk_buff *skb);
171 void mt76x02_rx_poll_complete(struct mt76_dev *mdev, enum mt76_rxq_id q);
172 irqreturn_t mt76x02_irq_handler(int irq, void *dev_instance);
173 void mt76x02_tx(struct ieee80211_hw *hw, struct ieee80211_tx_control *control,
174 		struct sk_buff *skb);
175 int mt76x02_tx_prepare_skb(struct mt76_dev *mdev, void *txwi,
176 			   enum mt76_txq_id qid, struct mt76_wcid *wcid,
177 			   struct ieee80211_sta *sta,
178 			   struct mt76_tx_info *tx_info);
179 void mt76x02_sw_scan_complete(struct ieee80211_hw *hw,
180 			      struct ieee80211_vif *vif);
181 void mt76x02_sta_ps(struct mt76_dev *dev, struct ieee80211_sta *sta, bool ps);
182 void mt76x02_bss_info_changed(struct ieee80211_hw *hw,
183 			      struct ieee80211_vif *vif,
184 			      struct ieee80211_bss_conf *info, u32 changed);
185 
186 struct beacon_bc_data {
187 	struct mt76x02_dev *dev;
188 	struct sk_buff_head q;
189 	struct sk_buff *tail[8];
190 };
191 
192 void mt76x02_init_beacon_config(struct mt76x02_dev *dev);
193 void mt76x02e_init_beacon_config(struct mt76x02_dev *dev);
194 void mt76x02_resync_beacon_timer(struct mt76x02_dev *dev);
195 void mt76x02_update_beacon_iter(void *priv, u8 *mac, struct ieee80211_vif *vif);
196 void mt76x02_enqueue_buffered_bc(struct mt76x02_dev *dev,
197 				 struct beacon_bc_data *data,
198 				 int max_nframes);
199 
200 void mt76x02_mac_start(struct mt76x02_dev *dev);
201 
202 void mt76x02_init_debugfs(struct mt76x02_dev *dev);
203 
204 static inline bool is_mt76x0(struct mt76x02_dev *dev)
205 {
206 	return mt76_chip(&dev->mt76) == 0x7610 ||
207 	       mt76_chip(&dev->mt76) == 0x7630 ||
208 	       mt76_chip(&dev->mt76) == 0x7650;
209 }
210 
211 static inline bool is_mt76x2(struct mt76x02_dev *dev)
212 {
213 	return mt76_chip(&dev->mt76) == 0x7612 ||
214 	       mt76_chip(&dev->mt76) == 0x7662 ||
215 	       mt76_chip(&dev->mt76) == 0x7602;
216 }
217 
218 static inline void mt76x02_irq_enable(struct mt76x02_dev *dev, u32 mask)
219 {
220 	mt76_set_irq_mask(&dev->mt76, MT_INT_MASK_CSR, 0, mask);
221 }
222 
223 static inline void mt76x02_irq_disable(struct mt76x02_dev *dev, u32 mask)
224 {
225 	mt76_set_irq_mask(&dev->mt76, MT_INT_MASK_CSR, mask, 0);
226 }
227 
228 static inline bool
229 mt76x02_wait_for_txrx_idle(struct mt76_dev *dev)
230 {
231 	return __mt76_poll_msec(dev, MT_MAC_STATUS,
232 				MT_MAC_STATUS_TX | MT_MAC_STATUS_RX,
233 				0, 100);
234 }
235 
236 static inline struct mt76x02_sta *
237 mt76x02_rx_get_sta(struct mt76_dev *dev, u8 idx)
238 {
239 	struct mt76_wcid *wcid;
240 
241 	if (idx >= ARRAY_SIZE(dev->wcid))
242 		return NULL;
243 
244 	wcid = rcu_dereference(dev->wcid[idx]);
245 	if (!wcid)
246 		return NULL;
247 
248 	return container_of(wcid, struct mt76x02_sta, wcid);
249 }
250 
251 static inline struct mt76_wcid *
252 mt76x02_rx_get_sta_wcid(struct mt76x02_sta *sta, bool unicast)
253 {
254 	if (!sta)
255 		return NULL;
256 
257 	if (unicast)
258 		return &sta->wcid;
259 	else
260 		return &sta->vif->group_wcid;
261 }
262 
263 #endif /* __MT76x02_H */
264