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_UTIL_H 19 #define __MT76X02_UTIL_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 struct mt76x02_mac_stats { 30 u64 rx_stat[6]; 31 u64 tx_stat[6]; 32 u64 aggr_stat[2]; 33 u64 aggr_n[32]; 34 u64 zero_len_del[2]; 35 }; 36 37 #define MT_MAX_CHAINS 2 38 struct mt76x02_rx_freq_cal { 39 s8 high_gain[MT_MAX_CHAINS]; 40 s8 rssi_offset[MT_MAX_CHAINS]; 41 s8 lna_gain; 42 u32 mcu_gain; 43 s16 temp_offset; 44 u8 freq_offset; 45 }; 46 47 struct mt76x02_calibration { 48 struct mt76x02_rx_freq_cal rx; 49 50 u8 agc_gain_init[MT_MAX_CHAINS]; 51 u8 agc_gain_cur[MT_MAX_CHAINS]; 52 53 u16 false_cca; 54 s8 avg_rssi_all; 55 s8 agc_gain_adjust; 56 s8 low_gain; 57 58 s8 temp_vco; 59 s8 temp; 60 61 bool init_cal_done; 62 bool tssi_cal_done; 63 bool tssi_comp_pending; 64 bool dpd_cal_done; 65 bool channel_cal_done; 66 }; 67 68 struct mt76x02_dev { 69 struct mt76_dev mt76; /* must be first */ 70 71 struct mac_address macaddr_list[8]; 72 73 struct mutex phy_mutex; 74 struct mutex mutex; 75 76 u8 txdone_seq; 77 DECLARE_KFIFO_PTR(txstatus_fifo, struct mt76x02_tx_status); 78 79 struct sk_buff *rx_head; 80 81 struct tasklet_struct tx_tasklet; 82 struct tasklet_struct pre_tbtt_tasklet; 83 struct delayed_work cal_work; 84 struct delayed_work mac_work; 85 86 struct mt76x02_mac_stats stats; 87 atomic_t avg_ampdu_len; 88 u32 aggr_stats[32]; 89 90 struct sk_buff *beacons[8]; 91 u8 beacon_mask; 92 u8 beacon_data_mask; 93 94 u8 tbtt_count; 95 u16 beacon_int; 96 97 struct mt76x02_calibration cal; 98 99 s8 target_power; 100 s8 target_power_delta[2]; 101 bool enable_tpc; 102 103 bool no_2ghz; 104 105 u8 coverage_class; 106 u8 slottime; 107 108 struct mt76x02_dfs_pattern_detector dfs_pd; 109 }; 110 111 extern struct ieee80211_rate mt76x02_rates[12]; 112 113 void mt76x02_configure_filter(struct ieee80211_hw *hw, 114 unsigned int changed_flags, 115 unsigned int *total_flags, u64 multicast); 116 int mt76x02_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 117 struct ieee80211_sta *sta); 118 int mt76x02_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 119 struct ieee80211_sta *sta); 120 121 void mt76x02_vif_init(struct mt76x02_dev *dev, struct ieee80211_vif *vif, 122 unsigned int idx); 123 int mt76x02_add_interface(struct ieee80211_hw *hw, 124 struct ieee80211_vif *vif); 125 void mt76x02_remove_interface(struct ieee80211_hw *hw, 126 struct ieee80211_vif *vif); 127 128 int mt76x02_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 129 struct ieee80211_ampdu_params *params); 130 int mt76x02_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, 131 struct ieee80211_vif *vif, struct ieee80211_sta *sta, 132 struct ieee80211_key_conf *key); 133 int mt76x02_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 134 u16 queue, const struct ieee80211_tx_queue_params *params); 135 void mt76x02_sta_rate_tbl_update(struct ieee80211_hw *hw, 136 struct ieee80211_vif *vif, 137 struct ieee80211_sta *sta); 138 s8 mt76x02_tx_get_max_txpwr_adj(struct mt76x02_dev *dev, 139 const struct ieee80211_tx_rate *rate); 140 s8 mt76x02_tx_get_txpwr_adj(struct mt76x02_dev *dev, s8 txpwr, 141 s8 max_txpwr_adj); 142 void mt76x02_tx_set_txpwr_auto(struct mt76x02_dev *dev, s8 txpwr); 143 int mt76x02_insert_hdr_pad(struct sk_buff *skb); 144 void mt76x02_remove_hdr_pad(struct sk_buff *skb, int len); 145 void mt76x02_tx_complete(struct mt76_dev *dev, struct sk_buff *skb); 146 bool mt76x02_tx_status_data(struct mt76_dev *mdev, u8 *update); 147 void mt76x02_queue_rx_skb(struct mt76_dev *mdev, enum mt76_rxq_id q, 148 struct sk_buff *skb); 149 void mt76x02_rx_poll_complete(struct mt76_dev *mdev, enum mt76_rxq_id q); 150 irqreturn_t mt76x02_irq_handler(int irq, void *dev_instance); 151 void mt76x02_tx(struct ieee80211_hw *hw, struct ieee80211_tx_control *control, 152 struct sk_buff *skb); 153 int mt76x02_tx_prepare_skb(struct mt76_dev *mdev, void *txwi, 154 struct sk_buff *skb, struct mt76_queue *q, 155 struct mt76_wcid *wcid, struct ieee80211_sta *sta, 156 u32 *tx_info); 157 158 extern const u16 mt76x02_beacon_offsets[16]; 159 void mt76x02_set_beacon_offsets(struct mt76x02_dev *dev); 160 void mt76x02_set_irq_mask(struct mt76x02_dev *dev, u32 clear, u32 set); 161 void mt76x02_mac_start(struct mt76x02_dev *dev); 162 163 static inline bool is_mt76x2(struct mt76x02_dev *dev) 164 { 165 return mt76_chip(&dev->mt76) == 0x7612 || 166 mt76_chip(&dev->mt76) == 0x7662 || 167 mt76_chip(&dev->mt76) == 0x7602; 168 } 169 170 static inline void mt76x02_irq_enable(struct mt76x02_dev *dev, u32 mask) 171 { 172 mt76x02_set_irq_mask(dev, 0, mask); 173 } 174 175 static inline void mt76x02_irq_disable(struct mt76x02_dev *dev, u32 mask) 176 { 177 mt76x02_set_irq_mask(dev, mask, 0); 178 } 179 180 static inline bool 181 mt76x02_wait_for_txrx_idle(struct mt76_dev *dev) 182 { 183 return __mt76_poll_msec(dev, MT_MAC_STATUS, 184 MT_MAC_STATUS_TX | MT_MAC_STATUS_RX, 185 0, 100); 186 } 187 188 static inline struct mt76x02_sta * 189 mt76x02_rx_get_sta(struct mt76_dev *dev, u8 idx) 190 { 191 struct mt76_wcid *wcid; 192 193 if (idx >= ARRAY_SIZE(dev->wcid)) 194 return NULL; 195 196 wcid = rcu_dereference(dev->wcid[idx]); 197 if (!wcid) 198 return NULL; 199 200 return container_of(wcid, struct mt76x02_sta, wcid); 201 } 202 203 static inline struct mt76_wcid * 204 mt76x02_rx_get_sta_wcid(struct mt76x02_sta *sta, bool unicast) 205 { 206 if (!sta) 207 return NULL; 208 209 if (unicast) 210 return &sta->wcid; 211 else 212 return &sta->vif->group_wcid; 213 } 214 215 #endif 216