1 /* 2 * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name> 3 * Copyright (C) 2018 Stanislaw Gruszka <stf_xl@wp.pl> 4 * 5 * Permission to use, copy, modify, and/or distribute this software for any 6 * purpose with or without fee is hereby granted, provided that the above 7 * copyright notice and this permission notice appear in all copies. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16 */ 17 18 #ifndef __MT76x02_H 19 #define __MT76x02_H 20 21 #include <linux/kfifo.h> 22 23 #include "mt76.h" 24 #include "mt76x02_regs.h" 25 #include "mt76x02_mac.h" 26 #include "mt76x02_dfs.h" 27 #include "mt76x02_dma.h" 28 29 #define MT_CALIBRATE_INTERVAL HZ 30 #define MT_MAC_WORK_INTERVAL (HZ / 10) 31 32 #define MT_WATCHDOG_TIME (HZ / 10) 33 #define MT_TX_HANG_TH 10 34 35 #define MT_MAX_CHAINS 2 36 struct mt76x02_rx_freq_cal { 37 s8 high_gain[MT_MAX_CHAINS]; 38 s8 rssi_offset[MT_MAX_CHAINS]; 39 s8 lna_gain; 40 u32 mcu_gain; 41 s16 temp_offset; 42 u8 freq_offset; 43 }; 44 45 struct mt76x02_calibration { 46 struct mt76x02_rx_freq_cal rx; 47 48 u8 agc_gain_init[MT_MAX_CHAINS]; 49 u8 agc_gain_cur[MT_MAX_CHAINS]; 50 51 u16 false_cca; 52 s8 avg_rssi_all; 53 s8 agc_gain_adjust; 54 s8 agc_lowest_gain; 55 s8 low_gain; 56 57 s8 temp_vco; 58 s8 temp; 59 60 bool init_cal_done; 61 bool tssi_cal_done; 62 bool tssi_comp_pending; 63 bool dpd_cal_done; 64 bool channel_cal_done; 65 bool gain_init_done; 66 67 int tssi_target; 68 s8 tssi_dc; 69 }; 70 71 struct mt76x02_beacon_ops { 72 unsigned int nslots; 73 unsigned int slot_size; 74 void (*pre_tbtt_enable) (struct mt76x02_dev *, bool); 75 void (*beacon_enable) (struct mt76x02_dev *, bool); 76 }; 77 78 struct mt76x02_dev { 79 struct mt76_dev mt76; /* must be first */ 80 81 struct mac_address macaddr_list[8]; 82 83 struct mutex phy_mutex; 84 85 u16 vif_mask; 86 87 u8 txdone_seq; 88 DECLARE_KFIFO_PTR(txstatus_fifo, struct mt76x02_tx_status); 89 spinlock_t txstatus_fifo_lock; 90 91 struct sk_buff *rx_head; 92 93 struct napi_struct tx_napi; 94 struct delayed_work cal_work; 95 struct delayed_work wdt_work; 96 97 struct hrtimer pre_tbtt_timer; 98 struct work_struct pre_tbtt_work; 99 100 const struct mt76x02_beacon_ops *beacon_ops; 101 102 u32 aggr_stats[32]; 103 104 struct sk_buff *beacons[8]; 105 u8 beacon_data_mask; 106 107 u8 tbtt_count; 108 109 u32 tx_hang_reset; 110 u8 tx_hang_check; 111 u8 mcu_timeout; 112 113 struct mt76x02_calibration cal; 114 115 s8 target_power; 116 s8 target_power_delta[2]; 117 bool enable_tpc; 118 119 bool no_2ghz; 120 121 u8 coverage_class; 122 u8 slottime; 123 124 struct mt76x02_dfs_pattern_detector dfs_pd; 125 126 /* edcca monitor */ 127 unsigned long ed_trigger_timeout; 128 bool ed_tx_blocked; 129 bool ed_monitor; 130 u8 ed_monitor_enabled; 131 u8 ed_monitor_learning; 132 u8 ed_trigger; 133 u8 ed_silent; 134 ktime_t ed_time; 135 }; 136 137 extern struct ieee80211_rate mt76x02_rates[12]; 138 139 void mt76x02_init_device(struct mt76x02_dev *dev); 140 void mt76x02_configure_filter(struct ieee80211_hw *hw, 141 unsigned int changed_flags, 142 unsigned int *total_flags, u64 multicast); 143 int mt76x02_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif, 144 struct ieee80211_sta *sta); 145 void mt76x02_sta_remove(struct mt76_dev *mdev, struct ieee80211_vif *vif, 146 struct ieee80211_sta *sta); 147 148 void mt76x02_config_mac_addr_list(struct mt76x02_dev *dev); 149 150 int mt76x02_add_interface(struct ieee80211_hw *hw, 151 struct ieee80211_vif *vif); 152 void mt76x02_remove_interface(struct ieee80211_hw *hw, 153 struct ieee80211_vif *vif); 154 155 int mt76x02_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 156 struct ieee80211_ampdu_params *params); 157 int mt76x02_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, 158 struct ieee80211_vif *vif, struct ieee80211_sta *sta, 159 struct ieee80211_key_conf *key); 160 int mt76x02_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 161 u16 queue, const struct ieee80211_tx_queue_params *params); 162 void mt76x02_sta_rate_tbl_update(struct ieee80211_hw *hw, 163 struct ieee80211_vif *vif, 164 struct ieee80211_sta *sta); 165 s8 mt76x02_tx_get_max_txpwr_adj(struct mt76x02_dev *dev, 166 const struct ieee80211_tx_rate *rate); 167 s8 mt76x02_tx_get_txpwr_adj(struct mt76x02_dev *dev, s8 txpwr, 168 s8 max_txpwr_adj); 169 void mt76x02_wdt_work(struct work_struct *work); 170 void mt76x02_tx_set_txpwr_auto(struct mt76x02_dev *dev, s8 txpwr); 171 void mt76x02_set_tx_ackto(struct mt76x02_dev *dev); 172 void mt76x02_set_coverage_class(struct ieee80211_hw *hw, 173 s16 coverage_class); 174 int mt76x02_set_rts_threshold(struct ieee80211_hw *hw, u32 val); 175 void mt76x02_remove_hdr_pad(struct sk_buff *skb, int len); 176 bool mt76x02_tx_status_data(struct mt76_dev *mdev, u8 *update); 177 void mt76x02_queue_rx_skb(struct mt76_dev *mdev, enum mt76_rxq_id q, 178 struct sk_buff *skb); 179 void mt76x02_rx_poll_complete(struct mt76_dev *mdev, enum mt76_rxq_id q); 180 irqreturn_t mt76x02_irq_handler(int irq, void *dev_instance); 181 void mt76x02_tx(struct ieee80211_hw *hw, struct ieee80211_tx_control *control, 182 struct sk_buff *skb); 183 int mt76x02_tx_prepare_skb(struct mt76_dev *mdev, void *txwi, 184 enum mt76_txq_id qid, struct mt76_wcid *wcid, 185 struct ieee80211_sta *sta, 186 struct mt76_tx_info *tx_info); 187 void mt76x02_sw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 188 const u8 *mac); 189 void mt76x02_sw_scan_complete(struct ieee80211_hw *hw, 190 struct ieee80211_vif *vif); 191 void mt76x02_sta_ps(struct mt76_dev *dev, struct ieee80211_sta *sta, bool ps); 192 void mt76x02_bss_info_changed(struct ieee80211_hw *hw, 193 struct ieee80211_vif *vif, 194 struct ieee80211_bss_conf *info, u32 changed); 195 196 struct beacon_bc_data { 197 struct mt76x02_dev *dev; 198 struct sk_buff_head q; 199 struct sk_buff *tail[8]; 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); 212 213 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 } 219 220 static inline bool is_mt76x2(struct mt76x02_dev *dev) 221 { 222 return mt76_chip(&dev->mt76) == 0x7612 || 223 mt76_chip(&dev->mt76) == 0x7662 || 224 mt76_chip(&dev->mt76) == 0x7602; 225 } 226 227 static inline void mt76x02_irq_enable(struct mt76x02_dev *dev, u32 mask) 228 { 229 mt76_set_irq_mask(&dev->mt76, MT_INT_MASK_CSR, 0, mask); 230 } 231 232 static inline void mt76x02_irq_disable(struct mt76x02_dev *dev, u32 mask) 233 { 234 mt76_set_irq_mask(&dev->mt76, MT_INT_MASK_CSR, mask, 0); 235 } 236 237 static inline bool 238 mt76x02_wait_for_txrx_idle(struct mt76_dev *dev) 239 { 240 return __mt76_poll_msec(dev, MT_MAC_STATUS, 241 MT_MAC_STATUS_TX | MT_MAC_STATUS_RX, 242 0, 100); 243 } 244 245 static inline struct mt76x02_sta * 246 mt76x02_rx_get_sta(struct mt76_dev *dev, u8 idx) 247 { 248 struct mt76_wcid *wcid; 249 250 if (idx >= ARRAY_SIZE(dev->wcid)) 251 return NULL; 252 253 wcid = rcu_dereference(dev->wcid[idx]); 254 if (!wcid) 255 return NULL; 256 257 return container_of(wcid, struct mt76x02_sta, wcid); 258 } 259 260 static inline struct mt76_wcid * 261 mt76x02_rx_get_sta_wcid(struct mt76x02_sta *sta, bool unicast) 262 { 263 if (!sta) 264 return NULL; 265 266 if (unicast) 267 return &sta->wcid; 268 else 269 return &sta->vif->group_wcid; 270 } 271 272 #endif /* __MT76x02_H */ 273