--- /dev/null
+/*
+ * Copyright (C) 2014 Felix Fietkau <nbd@openwrt.org>
+ * Copyright (C) 2015 Jakub Kicinski <kubakici@wp.pl>
+ *
+ * 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 MT7601U_H
+#define MT7601U_H
+
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include <linux/mutex.h>
+#include <linux/usb.h>
+#include <linux/completion.h>
+#include <net/mac80211.h>
+#include <linux/debugfs.h>
+
+#include "regs.h"
+#include "util.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 28 /* * 1024B */
+#define MT_USB_AGGR_TIMEOUT 0x80 /* * 33ns */
+#define MT_RX_ORDER 3
+#define MT_RX_URB_SIZE (PAGE_SIZE << MT_RX_ORDER)
+
+struct mt7601u_dma_buf {
+ struct urb *urb;
+ void *buf;
+ dma_addr_t dma;
+ size_t len;
+};
+
+struct mt7601u_mcu {
+ struct mutex mutex;
+
+ u8 msg_seq;
+
+ struct mt7601u_dma_buf resp;
+ struct completion resp_cmpl;
+};
+
+struct mt7601u_freq_cal {
+ struct delayed_work work;
+ u8 freq;
+ bool enabled;
+ bool adjusting;
+};
+
+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 mt7601u_rx_queue {
+ struct mt7601u_dev *dev;
+
+ struct mt7601u_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 mt7601u_tx_queue {
+ struct mt7601u_dev *dev;
+
+ struct mt7601u_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) (N_WCIDS - 2 - idx)
+
+struct mt7601u_eeprom_params;
+
+#define MT_EE_TEMPERATURE_SLOPE 39
+#define MT_FREQ_OFFSET_INVALID -128
+
+enum mt_temp_mode {
+ MT_TEMP_MODE_NORMAL,
+ MT_TEMP_MODE_HIGH,
+ MT_TEMP_MODE_LOW,
+};
+
+enum mt_bw {
+ MT_BW_20,
+ MT_BW_40,
+};
+
+enum {
+ MT7601U_STATE_INITIALIZED,
+ MT7601U_STATE_REMOVED,
+ MT7601U_STATE_WLAN_RUNNING,
+ MT7601U_STATE_MCU_RUNNING,
+ MT7601U_STATE_SCANNING,
+ MT7601U_STATE_READING_STATS,
+ MT7601U_STATE_MORE_STATS,
+};
+
+/**
+ * struct mt7601u_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 MT7601U_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.
+ * @vendor_req_mutex: protects @vend_buf, ensures atomicity of split writes.
+ * @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 mt7601u_dev {
+ struct ieee80211_hw *hw;
+ struct device *dev;
+
+ unsigned long state;
+
+ struct mutex mutex;
+
+ unsigned long wcid_mask[N_WCIDS / BITS_PER_LONG];
+
+ struct cfg80211_chan_def chandef;
+ struct ieee80211_supported_band *sband_2g;
+
+ struct mt7601u_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 lock;
+ spinlock_t mac_lock;
+
+ const u16 *beacon_offsets;
+
+ u8 macaddr[ETH_ALEN];
+ struct mt7601u_eeprom_params *ee;
+
+ struct mutex vendor_req_mutex;
+ void *vend_buf;
+
+ struct mutex reg_atomic_mutex;
+ struct mutex hw_atomic_mutex;
+
+ u32 rxfilter;
+ u32 debugfs_reg;
+
+ u8 out_eps[8];
+ u8 in_eps[8];
+ u16 out_max_packet;
+ u16 in_max_packet;
+
+ /* TX */
+ spinlock_t tx_lock;
+ struct tasklet_struct tx_tasklet;
+ struct mt7601u_tx_queue *tx_q;
+ struct sk_buff_head tx_skb_done;
+
+ atomic_t avg_ampdu_len;
+
+ /* RX */
+ spinlock_t rx_lock;
+ struct tasklet_struct rx_tasklet;
+ struct mt7601u_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;
+
+ struct mt7601u_freq_cal freq_cal;
+
+ bool tssi_read_trig;
+
+ s8 tssi_init;
+ s8 tssi_init_hvga;
+ s16 tssi_init_hvga_offset_db;
+
+ int prev_pwr_diff;
+
+ enum mt_temp_mode temp_mode;
+ int curr_temp;
+ int dpd_temp;
+ s8 raw_temp;
+ bool pll_lock_protect;
+
+ u8 bw;
+ bool chan_ext_below;
+
+ /* PA mode */
+ u32 rf_pa_mode[2];
+
+ struct mac_stats stats;
+};
+
+struct mt7601u_tssi_params {
+ char tssi0;
+ int trgt_power;
+};
+
+struct mt76_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_sta {
+ struct mt76_wcid wcid;
+ u16 agg_ssn[IEEE80211_NUM_TIDS];
+};
+
+struct mt76_reg_pair {
+ u32 reg;
+ u32 value;
+};
+
+struct mt7601u_rxwi;
+
+extern const struct ieee80211_ops mt7601u_ops;
+
+void mt7601u_init_debugfs(struct mt7601u_dev *dev);
+
+u32 mt7601u_rr(struct mt7601u_dev *dev, u32 offset);
+void mt7601u_wr(struct mt7601u_dev *dev, u32 offset, u32 val);
+u32 mt7601u_rmw(struct mt7601u_dev *dev, u32 offset, u32 mask, u32 val);
+u32 mt7601u_rmc(struct mt7601u_dev *dev, u32 offset, u32 mask, u32 val);
+void mt7601u_wr_copy(struct mt7601u_dev *dev, u32 offset,
+ const void *data, int len);
+
+int mt7601u_wait_asic_ready(struct mt7601u_dev *dev);
+bool mt76_poll(struct mt7601u_dev *dev, u32 offset, u32 mask, u32 val,
+ int timeout);
+bool mt76_poll_msec(struct mt7601u_dev *dev, u32 offset, u32 mask, u32 val,
+ int timeout);
+
+/* Compatibility with mt76 */
+#define mt76_rmw_field(_dev, _reg, _field, _val) \
+ mt76_rmw(_dev, _reg, _field, MT76_SET(_field, _val))
+
+static inline u32 mt76_rr(struct mt7601u_dev *dev, u32 offset)
+{
+ return mt7601u_rr(dev, offset);
+}
+
+static inline void mt76_wr(struct mt7601u_dev *dev, u32 offset, u32 val)
+{
+ return mt7601u_wr(dev, offset, val);
+}
+
+static inline u32
+mt76_rmw(struct mt7601u_dev *dev, u32 offset, u32 mask, u32 val)
+{
+ return mt7601u_rmw(dev, offset, mask, val);
+}
+
+static inline u32 mt76_set(struct mt7601u_dev *dev, u32 offset, u32 val)
+{
+ return mt76_rmw(dev, offset, 0, val);
+}
+
+static inline u32 mt76_clear(struct mt7601u_dev *dev, u32 offset, u32 val)
+{
+ return mt76_rmw(dev, offset, val, 0);
+}
+
+int mt7601u_write_reg_pairs(struct mt7601u_dev *dev, u32 base,
+ const struct mt76_reg_pair *data, int len);
+int mt7601u_burst_write_regs(struct mt7601u_dev *dev, u32 offset,
+ const u32 *data, int n);
+void mt7601u_addr_wr(struct mt7601u_dev *dev, const u32 offset, const u8 *addr);
+
+/* Init */
+struct mt7601u_dev *mt7601u_alloc_device(struct device *dev);
+int mt7601u_init_hardware(struct mt7601u_dev *dev);
+int mt7601u_register_device(struct mt7601u_dev *dev);
+void mt7601u_cleanup(struct mt7601u_dev *dev);
+
+int mt7601u_mac_start(struct mt7601u_dev *dev);
+void mt7601u_mac_stop(struct mt7601u_dev *dev);
+
+/* PHY */
+int mt7601u_phy_init(struct mt7601u_dev *dev);
+int mt7601u_wait_bbp_ready(struct mt7601u_dev *dev);
+void mt7601u_set_rx_path(struct mt7601u_dev *dev, u8 path);
+void mt7601u_set_tx_dac(struct mt7601u_dev *dev, u8 path);
+int mt7601u_bbp_set_bw(struct mt7601u_dev *dev, int bw);
+void mt7601u_agc_save(struct mt7601u_dev *dev);
+void mt7601u_agc_restore(struct mt7601u_dev *dev);
+int mt7601u_phy_set_channel(struct mt7601u_dev *dev,
+ struct cfg80211_chan_def *chandef);
+void mt7601u_phy_recalibrate_after_assoc(struct mt7601u_dev *dev);
+int mt7601u_phy_get_rssi(struct mt7601u_dev *dev,
+ struct mt7601u_rxwi *rxwi, u16 rate);
+void mt7601u_phy_con_cal_onoff(struct mt7601u_dev *dev,
+ struct ieee80211_bss_conf *info);
+
+/* MAC */
+void mt7601u_mac_work(struct work_struct *work);
+void mt7601u_mac_set_protection(struct mt7601u_dev *dev, bool legacy_prot,
+ int ht_mode);
+void mt7601u_mac_set_short_preamble(struct mt7601u_dev *dev, bool short_preamb);
+void mt7601u_mac_config_tsf(struct mt7601u_dev *dev, bool enable, int interval);
+void
+mt7601u_mac_wcid_setup(struct mt7601u_dev *dev, u8 idx, u8 vif_idx, u8 *mac);
+void mt7601u_mac_set_ampdu_factor(struct mt7601u_dev *dev);
+
+/* TX */
+void mt7601u_tx(struct ieee80211_hw *hw, struct ieee80211_tx_control *control,
+ struct sk_buff *skb);
+int mt7601u_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+ u16 queue, const struct ieee80211_tx_queue_params *params);
+void mt7601u_tx_status(struct mt7601u_dev *dev, struct sk_buff *skb);
+void mt7601u_tx_stat(struct work_struct *work);
+
+/* util */
+void mt76_remove_hdr_pad(struct sk_buff *skb);
+int mt76_insert_hdr_pad(struct sk_buff *skb);
+
+u32 mt7601u_bbp_set_ctrlch(struct mt7601u_dev *dev, bool below);
+
+static inline u32 mt7601u_mac_set_ctrlch(struct mt7601u_dev *dev, bool below)
+{
+ return mt7601u_rmc(dev, MT_TX_BAND_CFG, 1, below);
+}
+
+int mt7601u_dma_init(struct mt7601u_dev *dev);
+void mt7601u_dma_cleanup(struct mt7601u_dev *dev);
+
+int mt7601u_dma_enqueue_tx(struct mt7601u_dev *dev, struct sk_buff *skb,
+ struct mt76_wcid *wcid, int hw_q);
+
+#endif
Code Review / kvmfornfv.git / blobdiff