Backports v4.19.24

Backports generated by toradex backports 515a1fa55cda2b1d952872e1786857481bd54fcc
against mainline kernel tag v4.19.24

Signed-off-by: Dominik Sliwa <dominik.sliwa@toradex.com>

1 files changed, 330 insertions, 0 deletions

diff --git a/drivers/net/wireless/mediatek/mt76/mt76x2.h b/drivers/net/wireless/mediatek/mt76/mt76x2.h
new file mode 100644
index 0000000..dca3209
--- /dev/null
+++ b/drivers/net/wireless/mediatek/mt76/mt76x2.h
@@ -0,0 +1,330 @@
+/*
+ * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef __MT76x2_H
+#define __MT76x2_H
+
+#include <linux/device.h>
+#include <linux/dma-mapping.h>
+#include <linux/spinlock.h>
+#include <linux/skbuff.h>
+#include <linux/netdevice.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/mutex.h>
+#include <linux/bitops.h>
+#include <linux/kfifo.h>
+#include <linux/average.h>
+
+#define MT7662_FIRMWARE		"mt7662.bin"
+#define MT7662_ROM_PATCH	"mt7662_rom_patch.bin"
+#define MT7662_EEPROM_SIZE	512
+
+#define MT7662U_FIRMWARE	"mediatek/mt7662u.bin"
+#define MT7662U_ROM_PATCH	"mediatek/mt7662u_rom_patch.bin"
+
+#define MT76x2_RX_RING_SIZE	256
+#define MT_RX_HEADROOM		32
+
+#define MT_MAX_CHAINS		2
+
+#define MT_CALIBRATE_INTERVAL	HZ
+
+#define MT_MAX_VIFS		8
+#define MT_VIF_WCID(_n)		(254 - ((_n) & 7))
+
+#include "mt76.h"
+#include "mt76x2_regs.h"
+#include "mt76x2_mac.h"
+#include "mt76x2_dfs.h"
+
+DECLARE_EWMA(signal, 10, 8)
+
+struct mt76x2_mcu {
+	struct mutex mutex;
+
+	wait_queue_head_t wait;
+	struct sk_buff_head res_q;
+	struct mt76u_buf res_u;
+
+	u32 msg_seq;
+};
+
+struct mt76x2_rx_freq_cal {
+	s8 high_gain[MT_MAX_CHAINS];
+	s8 rssi_offset[MT_MAX_CHAINS];
+	s8 lna_gain;
+	u32 mcu_gain;
+};
+
+struct mt76x2_calibration {
+	struct mt76x2_rx_freq_cal rx;
+
+	u8 agc_gain_init[MT_MAX_CHAINS];
+	u8 agc_gain_cur[MT_MAX_CHAINS];
+
+	u16 false_cca;
+	s8 avg_rssi_all;
+	s8 agc_gain_adjust;
+	s8 low_gain;
+
+	u8 temp;
+
+	bool init_cal_done;
+	bool tssi_cal_done;
+	bool tssi_comp_pending;
+	bool dpd_cal_done;
+	bool channel_cal_done;
+};
+
+struct mt76x2_dev {
+	struct mt76_dev mt76; /* must be first */
+
+	struct mac_address macaddr_list[8];
+
+	struct mutex mutex;
+
+	const u16 *beacon_offsets;
+	unsigned long wcid_mask[128 / BITS_PER_LONG];
+
+	int txpower_conf;
+	int txpower_cur;
+
+	u8 txdone_seq;
+	DECLARE_KFIFO_PTR(txstatus_fifo, struct mt76x2_tx_status);
+
+	struct mt76x2_mcu mcu;
+	struct sk_buff *rx_head;
+
+	struct tasklet_struct tx_tasklet;
+	struct tasklet_struct pre_tbtt_tasklet;
+	struct delayed_work cal_work;
+	struct delayed_work mac_work;
+
+	u32 aggr_stats[32];
+
+	struct mt76_wcid global_wcid;
+	struct mt76_wcid __rcu *wcid[128];
+
+	spinlock_t irq_lock;
+	u32 irqmask;
+
+	struct sk_buff *beacons[8];
+	u8 beacon_mask;
+	u8 beacon_data_mask;
+
+	u8 tbtt_count;
+	u16 beacon_int;
+
+	u16 chainmask;
+
+	u32 rxfilter;
+
+	struct mt76x2_calibration cal;
+
+	s8 target_power;
+	s8 target_power_delta[2];
+	struct mt76_rate_power rate_power;
+	bool enable_tpc;
+
+	u8 coverage_class;
+	u8 slottime;
+
+	struct mt76x2_dfs_pattern_detector dfs_pd;
+};
+
+struct mt76x2_vif {
+	u8 idx;
+
+	struct mt76_wcid group_wcid;
+};
+
+struct mt76x2_sta {
+	struct mt76_wcid wcid; /* must be first */
+
+	struct mt76x2_vif *vif;
+	struct mt76x2_tx_status status;
+	int n_frames;
+
+	struct ewma_signal rssi;
+	int inactive_count;
+};
+
+static inline bool mt76x2_wait_for_mac(struct mt76x2_dev *dev)
+{
+	int i;
+
+	for (i = 0; i < 500; i++) {
+		switch (mt76_rr(dev, MT_MAC_CSR0)) {
+		case 0:
+		case ~0:
+			break;
+		default:
+			return true;
+		}
+		usleep_range(5000, 10000);
+	}
+	return false;
+}
+
+static inline bool is_mt7612(struct mt76x2_dev *dev)
+{
+	return mt76_chip(&dev->mt76) == 0x7612;
+}
+
+void mt76x2_set_irq_mask(struct mt76x2_dev *dev, u32 clear, u32 set);
+
+static inline bool mt76x2_channel_silent(struct mt76x2_dev *dev)
+{
+	struct ieee80211_channel *chan = dev->mt76.chandef.chan;
+
+	return ((chan->flags & IEEE80211_CHAN_RADAR) &&
+		chan->dfs_state != NL80211_DFS_AVAILABLE);
+}
+
+static inline void mt76x2_irq_enable(struct mt76x2_dev *dev, u32 mask)
+{
+	mt76x2_set_irq_mask(dev, 0, mask);
+}
+
+static inline void mt76x2_irq_disable(struct mt76x2_dev *dev, u32 mask)
+{
+	mt76x2_set_irq_mask(dev, mask, 0);
+}
+
+static inline bool mt76x2_wait_for_bbp(struct mt76x2_dev *dev)
+{
+	return mt76_poll_msec(dev, MT_MAC_STATUS,
+			      MT_MAC_STATUS_TX | MT_MAC_STATUS_RX,
+			      0, 100);
+}
+
+static inline bool wait_for_wpdma(struct mt76x2_dev *dev)
+{
+	return mt76_poll(dev, MT_WPDMA_GLO_CFG,
+			 MT_WPDMA_GLO_CFG_TX_DMA_BUSY |
+			 MT_WPDMA_GLO_CFG_RX_DMA_BUSY,
+			 0, 1000);
+}
+
+extern const struct ieee80211_ops mt76x2_ops;
+
+extern struct ieee80211_rate mt76x2_rates[12];
+
+struct mt76x2_dev *mt76x2_alloc_device(struct device *pdev);
+int mt76x2_register_device(struct mt76x2_dev *dev);
+void mt76x2_init_debugfs(struct mt76x2_dev *dev);
+void mt76x2_init_device(struct mt76x2_dev *dev);
+
+irqreturn_t mt76x2_irq_handler(int irq, void *dev_instance);
+void mt76x2_phy_power_on(struct mt76x2_dev *dev);
+int mt76x2_init_hardware(struct mt76x2_dev *dev);
+void mt76x2_stop_hardware(struct mt76x2_dev *dev);
+int mt76x2_eeprom_init(struct mt76x2_dev *dev);
+int mt76x2_apply_calibration_data(struct mt76x2_dev *dev, int channel);
+void mt76x2_set_tx_ackto(struct mt76x2_dev *dev);
+
+void mt76x2_phy_set_antenna(struct mt76x2_dev *dev);
+int mt76x2_phy_start(struct mt76x2_dev *dev);
+int mt76x2_phy_set_channel(struct mt76x2_dev *dev,
+			 struct cfg80211_chan_def *chandef);
+int mt76x2_mac_get_rssi(struct mt76x2_dev *dev, s8 rssi, int chain);
+void mt76x2_phy_calibrate(struct work_struct *work);
+void mt76x2_phy_set_txpower(struct mt76x2_dev *dev);
+
+int mt76x2_mcu_init(struct mt76x2_dev *dev);
+int mt76x2_mcu_set_channel(struct mt76x2_dev *dev, u8 channel, u8 bw,
+			   u8 bw_index, bool scan);
+int mt76x2_mcu_set_radio_state(struct mt76x2_dev *dev, bool on);
+int mt76x2_mcu_load_cr(struct mt76x2_dev *dev, u8 type, u8 temp_level,
+		       u8 channel);
+int mt76x2_mcu_cleanup(struct mt76x2_dev *dev);
+
+int mt76x2_dma_init(struct mt76x2_dev *dev);
+void mt76x2_dma_cleanup(struct mt76x2_dev *dev);
+
+void mt76x2_cleanup(struct mt76x2_dev *dev);
+
+int mt76x2_tx_queue_mcu(struct mt76x2_dev *dev, enum mt76_txq_id qid,
+			struct sk_buff *skb, int cmd, int seq);
+void mt76x2_tx(struct ieee80211_hw *hw, struct ieee80211_tx_control *control,
+	       struct sk_buff *skb);
+void mt76x2_tx_complete(struct mt76x2_dev *dev, struct sk_buff *skb);
+int mt76x2_tx_prepare_skb(struct mt76_dev *mdev, void *txwi,
+			  struct sk_buff *skb, struct mt76_queue *q,
+			  struct mt76_wcid *wcid, struct ieee80211_sta *sta,
+			  u32 *tx_info);
+void mt76x2_tx_complete_skb(struct mt76_dev *mdev, struct mt76_queue *q,
+			    struct mt76_queue_entry *e, bool flush);
+void mt76x2_mac_set_tx_protection(struct mt76x2_dev *dev, u32 val);
+
+void mt76x2_pre_tbtt_tasklet(unsigned long arg);
+
+void mt76x2_rx_poll_complete(struct mt76_dev *mdev, enum mt76_rxq_id q);
+void mt76x2_queue_rx_skb(struct mt76_dev *mdev, enum mt76_rxq_id q,
+			 struct sk_buff *skb);
+
+void mt76x2_sta_ps(struct mt76_dev *dev, struct ieee80211_sta *sta, bool ps);
+
+void mt76x2_update_channel(struct mt76_dev *mdev);
+
+s8 mt76x2_tx_get_max_txpwr_adj(struct mt76x2_dev *dev,
+			       const struct ieee80211_tx_rate *rate);
+s8 mt76x2_tx_get_txpwr_adj(struct mt76x2_dev *dev, s8 txpwr, s8 max_txpwr_adj);
+void mt76x2_tx_set_txpwr_auto(struct mt76x2_dev *dev, s8 txpwr);
+
+int mt76x2_insert_hdr_pad(struct sk_buff *skb);
+
+bool mt76x2_mac_load_tx_status(struct mt76x2_dev *dev,
+			       struct mt76x2_tx_status *stat);
+void mt76x2_send_tx_status(struct mt76x2_dev *dev,
+			   struct mt76x2_tx_status *stat, u8 *update);
+void mt76x2_reset_wlan(struct mt76x2_dev *dev, bool enable);
+void mt76x2_init_txpower(struct mt76x2_dev *dev,
+			 struct ieee80211_supported_band *sband);
+void mt76_write_mac_initvals(struct mt76x2_dev *dev);
+
+int mt76x2_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+			struct ieee80211_ampdu_params *params);
+int mt76x2_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+		   struct ieee80211_sta *sta);
+int mt76x2_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+		      struct ieee80211_sta *sta);
+void mt76x2_remove_interface(struct ieee80211_hw *hw,
+			     struct ieee80211_vif *vif);
+int mt76x2_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
+		   struct ieee80211_vif *vif, struct ieee80211_sta *sta,
+		   struct ieee80211_key_conf *key);
+int mt76x2_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+		   u16 queue, const struct ieee80211_tx_queue_params *params);
+void mt76x2_configure_filter(struct ieee80211_hw *hw,
+			     unsigned int changed_flags,
+			     unsigned int *total_flags, u64 multicast);
+void mt76x2_txq_init(struct mt76x2_dev *dev, struct ieee80211_txq *txq);
+void mt76x2_sta_rate_tbl_update(struct ieee80211_hw *hw,
+				struct ieee80211_vif *vif,
+				struct ieee80211_sta *sta);
+
+void mt76x2_phy_set_txpower_regs(struct mt76x2_dev *dev,
+				 enum nl80211_band band);
+void mt76x2_configure_tx_delay(struct mt76x2_dev *dev,
+			       enum nl80211_band band, u8 bw);
+void mt76x2_phy_set_bw(struct mt76x2_dev *dev, int width, u8 ctrl);
+void mt76x2_phy_set_band(struct mt76x2_dev *dev, int band, bool primary_upper);
+int mt76x2_phy_get_min_avg_rssi(struct mt76x2_dev *dev);
+void mt76x2_apply_gain_adj(struct mt76x2_dev *dev);
+
+#endif