1 /* 2 * Copyright (C) 2014 Felix Fietkau <nbd@openwrt.org> 3 * Copyright (C) 2015 Jakub Kicinski <kubakici@wp.pl> 4 * Copyright (C) 2018 Stanislaw Gruszka <stf_xl@wp.pl> 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License version 2 8 * as published by the Free Software Foundation 9 * 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU General Public License for more details. 14 */ 15 16 #ifndef MT76X0U_H 17 #define MT76X0U_H 18 19 #include <linux/bitfield.h> 20 #include <linux/kernel.h> 21 #include <linux/device.h> 22 #include <linux/mutex.h> 23 #include <linux/usb.h> 24 #include <linux/completion.h> 25 #include <net/mac80211.h> 26 #include <linux/debugfs.h> 27 28 #include "../mt76.h" 29 #include "../mt76x02_regs.h" 30 #include "../mt76x02_mac.h" 31 32 #define MT_CALIBRATE_INTERVAL (4 * HZ) 33 34 #define MT_FREQ_CAL_INIT_DELAY (30 * HZ) 35 #define MT_FREQ_CAL_CHECK_INTERVAL (10 * HZ) 36 #define MT_FREQ_CAL_ADJ_INTERVAL (HZ / 2) 37 38 #define MT_BBP_REG_VERSION 0x00 39 40 #define MT_USB_AGGR_SIZE_LIMIT 21 /* * 1024B */ 41 #define MT_USB_AGGR_TIMEOUT 0x80 /* * 33ns */ 42 43 struct mac_stats { 44 u64 rx_stat[6]; 45 u64 tx_stat[6]; 46 u64 aggr_stat[2]; 47 u64 aggr_n[32]; 48 u64 zero_len_del[2]; 49 }; 50 51 struct mt76x0_eeprom_params; 52 53 #define MT_EE_TEMPERATURE_SLOPE 39 54 #define MT_FREQ_OFFSET_INVALID -128 55 56 /* addr req mask */ 57 #define MT_VEND_TYPE_EEPROM BIT(31) 58 #define MT_VEND_TYPE_CFG BIT(30) 59 #define MT_VEND_TYPE_MASK (MT_VEND_TYPE_EEPROM | MT_VEND_TYPE_CFG) 60 61 #define MT_VEND_ADDR(type, n) (MT_VEND_TYPE_##type | (n)) 62 63 enum mt_bw { 64 MT_BW_20, 65 MT_BW_40, 66 }; 67 68 /** 69 * struct mt76x0_dev - adapter structure 70 * @lock: protects @wcid->tx_rate. 71 * @mac_lock: locks out mac80211's tx status and rx paths. 72 * @con_mon_lock: protects @ap_bssid, @bcn_*, @avg_rssi. 73 * @mutex: ensures exclusive access from mac80211 callbacks. 74 * @reg_atomic_mutex: ensures atomicity of indirect register accesses 75 * (accesses to RF and BBP). 76 * @hw_atomic_mutex: ensures exclusive access to HW during critical 77 * operations (power management, channel switch). 78 */ 79 struct mt76x0_dev { 80 struct mt76_dev mt76; /* must be first */ 81 82 struct mutex usb_ctrl_mtx; 83 u8 data[32]; 84 85 u8 out_ep[__MT_EP_OUT_MAX]; 86 u16 out_max_packet; 87 u8 in_ep[__MT_EP_IN_MAX]; 88 u16 in_max_packet; 89 90 struct delayed_work cal_work; 91 struct delayed_work mac_work; 92 93 struct delayed_work stat_work; 94 95 spinlock_t mac_lock; 96 97 const u16 *beacon_offsets; 98 99 u8 macaddr[ETH_ALEN]; 100 struct mt76x0_eeprom_params *ee; 101 102 struct mutex reg_atomic_mutex; 103 struct mutex hw_atomic_mutex; 104 105 u32 debugfs_reg; 106 107 atomic_t avg_ampdu_len; 108 109 /* Connection monitoring things */ 110 spinlock_t con_mon_lock; 111 u8 ap_bssid[ETH_ALEN]; 112 113 s8 bcn_freq_off; 114 u8 bcn_phy_mode; 115 116 int avg_rssi; /* starts at 0 and converges */ 117 118 u8 agc_save; 119 u16 chainmask; 120 121 struct mac_stats stats; 122 }; 123 124 struct mt76x0_wcid { 125 u8 idx; 126 u8 hw_key_idx; 127 128 u16 tx_rate; 129 bool tx_rate_set; 130 u8 tx_rate_nss; 131 }; 132 133 extern const struct ieee80211_ops mt76x0_ops; 134 135 static inline bool is_mt7610e(struct mt76x0_dev *dev) 136 { 137 /* TODO */ 138 return false; 139 } 140 141 void mt76x0_init_debugfs(struct mt76x0_dev *dev); 142 143 /* Compatibility with mt76 */ 144 #define mt76_rmw_field(_dev, _reg, _field, _val) \ 145 mt76_rmw(_dev, _reg, _field, FIELD_PREP(_field, _val)) 146 147 int mt76x0_write_reg_pairs(struct mt76x0_dev *dev, u32 base, 148 const struct mt76_reg_pair *data, int len); 149 int mt76x0_read_reg_pairs(struct mt76x0_dev *dev, u32 base, 150 struct mt76_reg_pair *data, int len); 151 int mt76x0_burst_write_regs(struct mt76x0_dev *dev, u32 offset, 152 const u32 *data, int n); 153 void mt76x0_addr_wr(struct mt76x0_dev *dev, const u32 offset, const u8 *addr); 154 155 /* Init */ 156 struct mt76x0_dev *mt76x0_alloc_device(struct device *dev); 157 int mt76x0_init_hardware(struct mt76x0_dev *dev); 158 int mt76x0_register_device(struct mt76x0_dev *dev); 159 void mt76x0_cleanup(struct mt76x0_dev *dev); 160 void mt76x0_chip_onoff(struct mt76x0_dev *dev, bool enable, bool reset); 161 162 int mt76x0_mac_start(struct mt76x0_dev *dev); 163 void mt76x0_mac_stop(struct mt76x0_dev *dev); 164 165 /* PHY */ 166 void mt76x0_phy_init(struct mt76x0_dev *dev); 167 int mt76x0_wait_bbp_ready(struct mt76x0_dev *dev); 168 void mt76x0_agc_save(struct mt76x0_dev *dev); 169 void mt76x0_agc_restore(struct mt76x0_dev *dev); 170 int mt76x0_phy_set_channel(struct mt76x0_dev *dev, 171 struct cfg80211_chan_def *chandef); 172 void mt76x0_phy_recalibrate_after_assoc(struct mt76x0_dev *dev); 173 int mt76x0_phy_get_rssi(struct mt76x0_dev *dev, struct mt76x02_rxwi *rxwi); 174 void mt76x0_phy_con_cal_onoff(struct mt76x0_dev *dev, 175 struct ieee80211_bss_conf *info); 176 177 /* MAC */ 178 void mt76x0_mac_work(struct work_struct *work); 179 void mt76x0_mac_set_protection(struct mt76x0_dev *dev, bool legacy_prot, 180 int ht_mode); 181 void mt76x0_mac_set_short_preamble(struct mt76x0_dev *dev, bool short_preamb); 182 void mt76x0_mac_config_tsf(struct mt76x0_dev *dev, bool enable, int interval); 183 void mt76x0_mac_set_ampdu_factor(struct mt76x0_dev *dev); 184 185 /* TX */ 186 void mt76x0_tx(struct ieee80211_hw *hw, struct ieee80211_tx_control *control, 187 struct sk_buff *skb); 188 void mt76x0_tx_status(struct mt76x0_dev *dev, struct sk_buff *skb); 189 190 void mt76x0_queue_rx_skb(struct mt76_dev *mdev, enum mt76_rxq_id q, 191 struct sk_buff *skb); 192 193 int mt76x0_tx_prepare_skb(struct mt76_dev *mdev, void *data, 194 struct sk_buff *skb, struct mt76_queue *q, 195 struct mt76_wcid *wcid, struct ieee80211_sta *sta, 196 u32 *tx_info); 197 #endif 198