/* * Copyright (C) 2014 Felix Fietkau * Copyright (C) 2015 Jakub Kicinski * Copyright (C) 2018 Stanislaw Gruszka * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 * as published by the Free Software Foundation * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. */ #ifndef MT76X0U_H #define MT76X0U_H #include #include #include #include #include #include #include #include #include "../mt76.h" #include "regs.h" #define MT_CALIBRATE_INTERVAL (4 * HZ) #define MT_FREQ_CAL_INIT_DELAY (30 * HZ) #define MT_FREQ_CAL_CHECK_INTERVAL (10 * HZ) #define MT_FREQ_CAL_ADJ_INTERVAL (HZ / 2) #define MT_BBP_REG_VERSION 0x00 #define MT_USB_AGGR_SIZE_LIMIT 21 /* * 1024B */ #define MT_USB_AGGR_TIMEOUT 0x80 /* * 33ns */ #define MT_RX_ORDER 3 #define MT_RX_URB_SIZE (PAGE_SIZE << MT_RX_ORDER) struct mt76x0_dma_buf { struct urb *urb; void *buf; dma_addr_t dma; size_t len; }; struct mt76x0_mcu { struct mutex mutex; u8 msg_seq; struct mt76x0_dma_buf resp; struct completion resp_cmpl; struct mt76_reg_pair *reg_pairs; unsigned int reg_pairs_len; u32 reg_base; bool burst_read; }; struct mac_stats { u64 rx_stat[6]; u64 tx_stat[6]; u64 aggr_stat[2]; u64 aggr_n[32]; u64 zero_len_del[2]; }; #define N_RX_ENTRIES 16 struct mt76x0_rx_queue { struct mt76x0_dev *dev; struct mt76x0_dma_buf_rx { struct urb *urb; struct page *p; } e[N_RX_ENTRIES]; unsigned int start; unsigned int end; unsigned int entries; unsigned int pending; }; #define N_TX_ENTRIES 64 struct mt76x0_tx_queue { struct mt76x0_dev *dev; struct mt76x0_dma_buf_tx { struct urb *urb; struct sk_buff *skb; } e[N_TX_ENTRIES]; unsigned int start; unsigned int end; unsigned int entries; unsigned int used; unsigned int fifo_seq; }; /* WCID allocation: * 0: mcast wcid * 1: bssid wcid * 1...: STAs * ...7e: group wcids * 7f: reserved */ #define N_WCIDS 128 #define GROUP_WCID(idx) (254 - idx) struct mt76x0_eeprom_params; #define MT_EE_TEMPERATURE_SLOPE 39 #define MT_FREQ_OFFSET_INVALID -128 /* addr req mask */ #define MT_VEND_TYPE_EEPROM BIT(31) #define MT_VEND_TYPE_CFG BIT(30) #define MT_VEND_TYPE_MASK (MT_VEND_TYPE_EEPROM | MT_VEND_TYPE_CFG) #define MT_VEND_ADDR(type, n) (MT_VEND_TYPE_##type | (n)) enum mt_bw { MT_BW_20, MT_BW_40, }; /** * struct mt76x0_dev - adapter structure * @lock: protects @wcid->tx_rate. * @mac_lock: locks out mac80211's tx status and rx paths. * @tx_lock: protects @tx_q and changes of MT76_STATE_*_STATS * flags in @state. * @rx_lock: protects @rx_q. * @con_mon_lock: protects @ap_bssid, @bcn_*, @avg_rssi. * @mutex: ensures exclusive access from mac80211 callbacks. * @reg_atomic_mutex: ensures atomicity of indirect register accesses * (accesses to RF and BBP). * @hw_atomic_mutex: ensures exclusive access to HW during critical * operations (power management, channel switch). */ struct mt76x0_dev { struct mt76_dev mt76; /* must be first */ struct mutex mutex; struct mutex usb_ctrl_mtx; u8 data[32]; struct tasklet_struct rx_tasklet; struct tasklet_struct tx_tasklet; u8 out_ep[__MT_EP_OUT_MAX]; u16 out_max_packet; u8 in_ep[__MT_EP_IN_MAX]; u16 in_max_packet; unsigned long wcid_mask[DIV_ROUND_UP(N_WCIDS, BITS_PER_LONG)]; unsigned long vif_mask; struct mt76x0_mcu mcu; struct delayed_work cal_work; struct delayed_work mac_work; struct workqueue_struct *stat_wq; struct delayed_work stat_work; struct mt76_wcid *mon_wcid; struct mt76_wcid __rcu *wcid[N_WCIDS]; spinlock_t mac_lock; const u16 *beacon_offsets; u8 macaddr[ETH_ALEN]; struct mt76x0_eeprom_params *ee; struct mutex reg_atomic_mutex; struct mutex hw_atomic_mutex; u32 rxfilter; u32 debugfs_reg; /* TX */ spinlock_t tx_lock; struct mt76x0_tx_queue *tx_q; struct sk_buff_head tx_skb_done; atomic_t avg_ampdu_len; /* RX */ spinlock_t rx_lock; struct mt76x0_rx_queue rx_q; /* Connection monitoring things */ spinlock_t con_mon_lock; u8 ap_bssid[ETH_ALEN]; s8 bcn_freq_off; u8 bcn_phy_mode; int avg_rssi; /* starts at 0 and converges */ u8 agc_save; u16 chainmask; struct mac_stats stats; }; struct mt76x0_wcid { u8 idx; u8 hw_key_idx; u16 tx_rate; bool tx_rate_set; u8 tx_rate_nss; }; struct mt76_vif { u8 idx; struct mt76_wcid group_wcid; }; struct mt76_tx_status { u8 valid:1; u8 success:1; u8 aggr:1; u8 ack_req:1; u8 is_probe:1; u8 wcid; u8 pktid; u8 retry; u16 rate; } __packed __aligned(2); struct mt76_sta { struct mt76_wcid wcid; struct mt76_tx_status status; int n_frames; u16 agg_ssn[IEEE80211_NUM_TIDS]; }; struct mt76_reg_pair { u32 reg; u32 value; }; struct mt76x0_rxwi; extern const struct ieee80211_ops mt76x0_ops; static inline bool is_mt7610e(struct mt76x0_dev *dev) { /* TODO */ return false; } void mt76x0_init_debugfs(struct mt76x0_dev *dev); int mt76x0_wait_asic_ready(struct mt76x0_dev *dev); /* Compatibility with mt76 */ #define mt76_rmw_field(_dev, _reg, _field, _val) \ mt76_rmw(_dev, _reg, _field, FIELD_PREP(_field, _val)) int mt76x0_write_reg_pairs(struct mt76x0_dev *dev, u32 base, const struct mt76_reg_pair *data, int len); int mt76x0_read_reg_pairs(struct mt76x0_dev *dev, u32 base, struct mt76_reg_pair *data, int len); int mt76x0_burst_write_regs(struct mt76x0_dev *dev, u32 offset, const u32 *data, int n); void mt76x0_addr_wr(struct mt76x0_dev *dev, const u32 offset, const u8 *addr); /* Init */ struct mt76x0_dev *mt76x0_alloc_device(struct device *dev); int mt76x0_init_hardware(struct mt76x0_dev *dev); int mt76x0_register_device(struct mt76x0_dev *dev); void mt76x0_cleanup(struct mt76x0_dev *dev); void mt76x0_chip_onoff(struct mt76x0_dev *dev, bool enable, bool reset); int mt76x0_mac_start(struct mt76x0_dev *dev); void mt76x0_mac_stop(struct mt76x0_dev *dev); /* PHY */ void mt76x0_phy_init(struct mt76x0_dev *dev); int mt76x0_wait_bbp_ready(struct mt76x0_dev *dev); void mt76x0_agc_save(struct mt76x0_dev *dev); void mt76x0_agc_restore(struct mt76x0_dev *dev); int mt76x0_phy_set_channel(struct mt76x0_dev *dev, struct cfg80211_chan_def *chandef); void mt76x0_phy_recalibrate_after_assoc(struct mt76x0_dev *dev); int mt76x0_phy_get_rssi(struct mt76x0_dev *dev, struct mt76x0_rxwi *rxwi); void mt76x0_phy_con_cal_onoff(struct mt76x0_dev *dev, struct ieee80211_bss_conf *info); /* MAC */ void mt76x0_mac_work(struct work_struct *work); void mt76x0_mac_set_protection(struct mt76x0_dev *dev, bool legacy_prot, int ht_mode); void mt76x0_mac_set_short_preamble(struct mt76x0_dev *dev, bool short_preamb); void mt76x0_mac_config_tsf(struct mt76x0_dev *dev, bool enable, int interval); void mt76x0_mac_wcid_setup(struct mt76x0_dev *dev, u8 idx, u8 vif_idx, u8 *mac); void mt76x0_mac_set_ampdu_factor(struct mt76x0_dev *dev); /* TX */ void mt76x0_tx(struct ieee80211_hw *hw, struct ieee80211_tx_control *control, struct sk_buff *skb); int mt76x0_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif, u16 queue, const struct ieee80211_tx_queue_params *params); void mt76x0_tx_status(struct mt76x0_dev *dev, struct sk_buff *skb); void mt76x0_tx_stat(struct work_struct *work); /* util */ void mt76x0_remove_hdr_pad(struct sk_buff *skb); int mt76x0_insert_hdr_pad(struct sk_buff *skb); int mt76x0_dma_init(struct mt76x0_dev *dev); void mt76x0_dma_cleanup(struct mt76x0_dev *dev); int mt76x0_dma_enqueue_tx(struct mt76x0_dev *dev, struct sk_buff *skb, struct mt76_wcid *wcid, int hw_q); #endif