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 75 u8 txdone_seq; 76 DECLARE_KFIFO_PTR(txstatus_fifo, struct mt76x02_tx_status); 77 78 struct sk_buff *rx_head; 79 80 struct tasklet_struct tx_tasklet; 81 struct tasklet_struct pre_tbtt_tasklet; 82 struct delayed_work cal_work; 83 struct delayed_work mac_work; 84 85 struct mt76x02_mac_stats stats; 86 atomic_t avg_ampdu_len; 87 u32 aggr_stats[32]; 88 89 struct sk_buff *beacons[8]; 90 u8 beacon_mask; 91 u8 beacon_data_mask; 92 93 u8 tbtt_count; 94 u16 beacon_int; 95 96 struct mt76x02_calibration cal; 97 98 s8 target_power; 99 s8 target_power_delta[2]; 100 bool enable_tpc; 101 102 bool no_2ghz; 103 104 u8 coverage_class; 105 u8 slottime; 106 107 struct mt76x02_dfs_pattern_detector dfs_pd; 108 }; 109 110 extern struct ieee80211_rate mt76x02_rates[12]; 111 112 void mt76x02_configure_filter(struct ieee80211_hw *hw, 113 unsigned int changed_flags, 114 unsigned int *total_flags, u64 multicast); 115 int mt76x02_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 116 struct ieee80211_sta *sta); 117 int mt76x02_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 118 struct ieee80211_sta *sta); 119 120 void mt76x02_vif_init(struct mt76x02_dev *dev, struct ieee80211_vif *vif, 121 unsigned int idx); 122 int mt76x02_add_interface(struct ieee80211_hw *hw, 123 struct ieee80211_vif *vif); 124 void mt76x02_remove_interface(struct ieee80211_hw *hw, 125 struct ieee80211_vif *vif); 126 127 int mt76x02_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 128 struct ieee80211_ampdu_params *params); 129 int mt76x02_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, 130 struct ieee80211_vif *vif, struct ieee80211_sta *sta, 131 struct ieee80211_key_conf *key); 132 int mt76x02_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 133 u16 queue, const struct ieee80211_tx_queue_params *params); 134 void mt76x02_sta_rate_tbl_update(struct ieee80211_hw *hw, 135 struct ieee80211_vif *vif, 136 struct ieee80211_sta *sta); 137 s8 mt76x02_tx_get_max_txpwr_adj(struct mt76x02_dev *dev, 138 const struct ieee80211_tx_rate *rate); 139 s8 mt76x02_tx_get_txpwr_adj(struct mt76x02_dev *dev, s8 txpwr, 140 s8 max_txpwr_adj); 141 void mt76x02_tx_set_txpwr_auto(struct mt76x02_dev *dev, s8 txpwr); 142 int mt76x02_insert_hdr_pad(struct sk_buff *skb); 143 void mt76x02_remove_hdr_pad(struct sk_buff *skb, int len); 144 void mt76x02_tx_complete(struct mt76_dev *dev, struct sk_buff *skb); 145 bool mt76x02_tx_status_data(struct mt76_dev *mdev, u8 *update); 146 void mt76x02_queue_rx_skb(struct mt76_dev *mdev, enum mt76_rxq_id q, 147 struct sk_buff *skb); 148 void mt76x02_rx_poll_complete(struct mt76_dev *mdev, enum mt76_rxq_id q); 149 irqreturn_t mt76x02_irq_handler(int irq, void *dev_instance); 150 void mt76x02_tx(struct ieee80211_hw *hw, struct ieee80211_tx_control *control, 151 struct sk_buff *skb); 152 int mt76x02_tx_prepare_skb(struct mt76_dev *mdev, void *txwi, 153 struct sk_buff *skb, struct mt76_queue *q, 154 struct mt76_wcid *wcid, struct ieee80211_sta *sta, 155 u32 *tx_info); 156 157 extern const u16 mt76x02_beacon_offsets[16]; 158 void mt76x02_set_beacon_offsets(struct mt76x02_dev *dev); 159 void mt76x02_set_irq_mask(struct mt76x02_dev *dev, u32 clear, u32 set); 160 void mt76x02_mac_start(struct mt76x02_dev *dev); 161 162 static inline bool is_mt76x2(struct mt76x02_dev *dev) 163 { 164 return mt76_chip(&dev->mt76) == 0x7612 || 165 mt76_chip(&dev->mt76) == 0x7662 || 166 mt76_chip(&dev->mt76) == 0x7602; 167 } 168 169 static inline void mt76x02_irq_enable(struct mt76x02_dev *dev, u32 mask) 170 { 171 mt76x02_set_irq_mask(dev, 0, mask); 172 } 173 174 static inline void mt76x02_irq_disable(struct mt76x02_dev *dev, u32 mask) 175 { 176 mt76x02_set_irq_mask(dev, mask, 0); 177 } 178 179 static inline bool 180 mt76x02_wait_for_txrx_idle(struct mt76_dev *dev) 181 { 182 return __mt76_poll_msec(dev, MT_MAC_STATUS, 183 MT_MAC_STATUS_TX | MT_MAC_STATUS_RX, 184 0, 100); 185 } 186 187 static inline struct mt76x02_sta * 188 mt76x02_rx_get_sta(struct mt76_dev *dev, u8 idx) 189 { 190 struct mt76_wcid *wcid; 191 192 if (idx >= ARRAY_SIZE(dev->wcid)) 193 return NULL; 194 195 wcid = rcu_dereference(dev->wcid[idx]); 196 if (!wcid) 197 return NULL; 198 199 return container_of(wcid, struct mt76x02_sta, wcid); 200 } 201 202 static inline struct mt76_wcid * 203 mt76x02_rx_get_sta_wcid(struct mt76x02_sta *sta, bool unicast) 204 { 205 if (!sta) 206 return NULL; 207 208 if (unicast) 209 return &sta->wcid; 210 else 211 return &sta->vif->group_wcid; 212 } 213 214 #endif 215