Adding upstream version 4.19.249.upstream/4.19.249

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1168 insertions, 0 deletions

diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h
new file mode 100644
index 000000000..de3befc2e
--- /dev/null
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -0,0 +1,1168 @@
+/*
+ * Copyright (c) 2008-2011 Atheros Communications Inc.
+ *
+ * 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 ATH9K_H
+#define ATH9K_H
+
+#include <linux/etherdevice.h>
+#include <linux/device.h>
+#include <linux/interrupt.h>
+#include <linux/leds.h>
+#include <linux/completion.h>
+#include <linux/time.h>
+#include <linux/hw_random.h>
+
+#include "common.h"
+#include "debug.h"
+#include "mci.h"
+#include "dfs.h"
+
+struct ath_node;
+struct ath_vif;
+
+extern struct ieee80211_ops ath9k_ops;
+extern int ath9k_modparam_nohwcrypt;
+extern int ath9k_led_blink;
+extern bool is_ath9k_unloaded;
+extern int ath9k_use_chanctx;
+
+/*************************/
+/* Descriptor Management */
+/*************************/
+
+#define ATH_TXSTATUS_RING_SIZE 512
+
+/* Macro to expand scalars to 64-bit objects */
+#define	ito64(x) (sizeof(x) == 1) ?			\
+	(((unsigned long long int)(x)) & (0xff)) :	\
+	(sizeof(x) == 2) ?				\
+	(((unsigned long long int)(x)) & 0xffff) :	\
+	((sizeof(x) == 4) ?				\
+	 (((unsigned long long int)(x)) & 0xffffffff) : \
+	 (unsigned long long int)(x))
+
+#define ATH_TXBUF_RESET(_bf) do {				\
+		(_bf)->bf_lastbf = NULL;			\
+		(_bf)->bf_next = NULL;				\
+		memset(&((_bf)->bf_state), 0,			\
+		       sizeof(struct ath_buf_state));		\
+	} while (0)
+
+#define	DS2PHYS(_dd, _ds)						\
+	((_dd)->dd_desc_paddr + ((caddr_t)(_ds) - (caddr_t)(_dd)->dd_desc))
+#define ATH_DESC_4KB_BOUND_CHECK(_daddr) ((((_daddr) & 0xFFF) > 0xF7F) ? 1 : 0)
+#define ATH_DESC_4KB_BOUND_NUM_SKIPPED(_len) ((_len) / 4096)
+
+struct ath_descdma {
+	void *dd_desc;
+	dma_addr_t dd_desc_paddr;
+	u32 dd_desc_len;
+};
+
+int ath_descdma_setup(struct ath_softc *sc, struct ath_descdma *dd,
+		      struct list_head *head, const char *name,
+		      int nbuf, int ndesc, bool is_tx);
+
+/***********/
+/* RX / TX */
+/***********/
+
+#define	ATH_TXQ_SETUP(sc, i) ((sc)->tx.txqsetup & (1<<i))
+
+/* increment with wrap-around */
+#define INCR(_l, _sz)   do {			\
+		(_l)++;				\
+		(_l) &= ((_sz) - 1);		\
+	} while (0)
+
+#define ATH_RXBUF               512
+#define ATH_TXBUF               512
+#define ATH_TXBUF_RESERVE       5
+#define ATH_TXMAXTRY            13
+#define ATH_MAX_SW_RETRIES      30
+
+#define TID_TO_WME_AC(_tid)				\
+	((((_tid) == 0) || ((_tid) == 3)) ? IEEE80211_AC_BE :	\
+	 (((_tid) == 1) || ((_tid) == 2)) ? IEEE80211_AC_BK :	\
+	 (((_tid) == 4) || ((_tid) == 5)) ? IEEE80211_AC_VI :	\
+	 IEEE80211_AC_VO)
+
+#define ATH_AGGR_DELIM_SZ          4
+#define ATH_AGGR_MINPLEN           256 /* in bytes, minimum packet length */
+/* number of delimiters for encryption padding */
+#define ATH_AGGR_ENCRYPTDELIM      10
+/* minimum h/w qdepth to be sustained to maximize aggregation */
+#define ATH_AGGR_MIN_QDEPTH        2
+/* minimum h/w qdepth for non-aggregated traffic */
+#define ATH_NON_AGGR_MIN_QDEPTH    8
+#define ATH_HW_CHECK_POLL_INT      1000
+#define ATH_TXFIFO_DEPTH           8
+#define ATH_TX_ERROR               0x01
+
+#define ATH_AIRTIME_QUANTUM        300 /* usec */
+
+/* Stop tx traffic 1ms before the GO goes away */
+#define ATH_P2P_PS_STOP_TIME       1000
+
+#define IEEE80211_SEQ_SEQ_SHIFT    4
+#define IEEE80211_SEQ_MAX          4096
+#define IEEE80211_WEP_IVLEN        3
+#define IEEE80211_WEP_KIDLEN       1
+#define IEEE80211_WEP_CRCLEN       4
+#define IEEE80211_MAX_MPDU_LEN     (3840 + FCS_LEN +		\
+				    (IEEE80211_WEP_IVLEN +	\
+				     IEEE80211_WEP_KIDLEN +	\
+				     IEEE80211_WEP_CRCLEN))
+
+/* return whether a bit at index _n in bitmap _bm is set
+ * _sz is the size of the bitmap  */
+#define ATH_BA_ISSET(_bm, _n)  (((_n) < (WME_BA_BMP_SIZE)) &&		\
+				((_bm)[(_n) >> 5] & (1 << ((_n) & 31))))
+
+/* return block-ack bitmap index given sequence and starting sequence */
+#define ATH_BA_INDEX(_st, _seq) (((_seq) - (_st)) & (IEEE80211_SEQ_MAX - 1))
+
+/* return the seqno for _start + _offset */
+#define ATH_BA_INDEX2SEQ(_seq, _offset) (((_seq) + (_offset)) & (IEEE80211_SEQ_MAX - 1))
+
+/* returns delimiter padding required given the packet length */
+#define ATH_AGGR_GET_NDELIM(_len)					\
+       (((_len) >= ATH_AGGR_MINPLEN) ? 0 :                             \
+        DIV_ROUND_UP(ATH_AGGR_MINPLEN - (_len), ATH_AGGR_DELIM_SZ))
+
+#define BAW_WITHIN(_start, _bawsz, _seqno) \
+	((((_seqno) - (_start)) & 4095) < (_bawsz))
+
+#define ATH_AN_2_TID(_an, _tidno) ath_node_to_tid(_an, _tidno)
+
+#define IS_HT_RATE(rate)   (rate & 0x80)
+#define IS_CCK_RATE(rate)  ((rate >= 0x18) && (rate <= 0x1e))
+#define IS_OFDM_RATE(rate) ((rate >= 0x8) && (rate <= 0xf))
+
+enum {
+       WLAN_RC_PHY_OFDM,
+       WLAN_RC_PHY_CCK,
+};
+
+struct ath_txq {
+	int mac80211_qnum; /* mac80211 queue number, -1 means not mac80211 Q */
+	u32 axq_qnum; /* ath9k hardware queue number */
+	void *axq_link;
+	struct list_head axq_q;
+	spinlock_t axq_lock;
+	u32 axq_depth;
+	u32 axq_ampdu_depth;
+	bool axq_tx_inprogress;
+	struct list_head txq_fifo[ATH_TXFIFO_DEPTH];
+	u8 txq_headidx;
+	u8 txq_tailidx;
+	int pending_frames;
+	struct sk_buff_head complete_q;
+};
+
+struct ath_frame_info {
+	struct ath_buf *bf;
+	u16 framelen;
+	s8 txq;
+	u8 keyix;
+	u8 rtscts_rate;
+	u8 retries : 6;
+	u8 dyn_smps : 1;
+	u8 baw_tracked : 1;
+	u8 tx_power;
+	enum ath9k_key_type keytype:2;
+};
+
+struct ath_rxbuf {
+	struct list_head list;
+	struct sk_buff *bf_mpdu;
+	void *bf_desc;
+	dma_addr_t bf_daddr;
+	dma_addr_t bf_buf_addr;
+};
+
+/**
+ * enum buffer_type - Buffer type flags
+ *
+ * @BUF_AMPDU: This buffer is an ampdu, as part of an aggregate (during TX)
+ * @BUF_AGGR: Indicates whether the buffer can be aggregated
+ *	(used in aggregation scheduling)
+ */
+enum buffer_type {
+	BUF_AMPDU		= BIT(0),
+	BUF_AGGR		= BIT(1),
+};
+
+#define bf_isampdu(bf)		(bf->bf_state.bf_type & BUF_AMPDU)
+#define bf_isaggr(bf)		(bf->bf_state.bf_type & BUF_AGGR)
+
+struct ath_buf_state {
+	u8 bf_type;
+	u8 bfs_paprd;
+	u8 ndelim;
+	bool stale;
+	u16 seqno;
+	unsigned long bfs_paprd_timestamp;
+};
+
+struct ath_buf {
+	struct list_head list;
+	struct ath_buf *bf_lastbf;	/* last buf of this unit (a frame or
+					   an aggregate) */
+	struct ath_buf *bf_next;	/* next subframe in the aggregate */
+	struct sk_buff *bf_mpdu;	/* enclosing frame structure */
+	void *bf_desc;			/* virtual addr of desc */
+	dma_addr_t bf_daddr;		/* physical addr of desc */
+	dma_addr_t bf_buf_addr;	/* physical addr of data buffer, for DMA */
+	struct ieee80211_tx_rate rates[4];
+	struct ath_buf_state bf_state;
+};
+
+struct ath_atx_tid {
+	struct list_head list;
+	struct sk_buff_head retry_q;
+	struct ath_node *an;
+	struct ath_txq *txq;
+	unsigned long tx_buf[BITS_TO_LONGS(ATH_TID_MAX_BUFS)];
+	u16 seq_start;
+	u16 seq_next;
+	u16 baw_size;
+	u8 tidno;
+	int baw_head;   /* first un-acked tx buffer */
+	int baw_tail;   /* next unused tx buffer slot */
+
+	s8 bar_index;
+	bool active;
+	bool clear_ps_filter;
+	bool has_queued;
+};
+
+void __ath_tx_queue_tid(struct ath_softc *sc, struct ath_atx_tid *tid);
+void ath_tx_queue_tid(struct ath_softc *sc, struct ath_atx_tid *tid);
+
+struct ath_node {
+	struct ath_softc *sc;
+	struct ieee80211_sta *sta; /* station struct we're part of */
+	struct ieee80211_vif *vif; /* interface with which we're associated */
+
+	u16 maxampdu;
+	u8 mpdudensity;
+	s8 ps_key;
+
+	bool sleeping;
+	bool no_ps_filter;
+	s64 airtime_deficit[IEEE80211_NUM_ACS];
+	u32 airtime_rx_start;
+
+#ifdef CONFIG_ATH9K_STATION_STATISTICS
+	struct ath_rx_rate_stats rx_rate_stats;
+	struct ath_airtime_stats airtime_stats;
+#endif
+	u8 key_idx[4];
+
+	int ackto;
+	struct list_head list;
+};
+
+struct ath_tx_control {
+	struct ath_txq *txq;
+	struct ath_node *an;
+	struct ieee80211_sta *sta;
+	u8 paprd;
+};
+
+
+/**
+ * @txq_map:  Index is mac80211 queue number.  This is
+ *  not necessarily the same as the hardware queue number
+ *  (axq_qnum).
+ */
+struct ath_tx {
+	u32 txqsetup;
+	spinlock_t txbuflock;
+	struct list_head txbuf;
+	struct ath_txq txq[ATH9K_NUM_TX_QUEUES];
+	struct ath_descdma txdma;
+	struct ath_txq *txq_map[IEEE80211_NUM_ACS];
+	struct ath_txq *uapsdq;
+	u16 max_aggr_framelen[IEEE80211_NUM_ACS][4][32];
+};
+
+struct ath_rx_edma {
+	struct sk_buff_head rx_fifo;
+	u32 rx_fifo_hwsize;
+};
+
+struct ath_rx {
+	u8 defant;
+	u8 rxotherant;
+	bool discard_next;
+	u32 *rxlink;
+	u32 num_pkts;
+	struct list_head rxbuf;
+	struct ath_descdma rxdma;
+	struct ath_rx_edma rx_edma[ATH9K_RX_QUEUE_MAX];
+
+	struct ath_rxbuf *buf_hold;
+	struct sk_buff *frag;
+
+	u32 ampdu_ref;
+};
+
+/*******************/
+/* Channel Context */
+/*******************/
+
+struct ath_acq {
+	struct list_head acq_new;
+	struct list_head acq_old;
+	spinlock_t lock;
+};
+
+struct ath_chanctx {
+	struct cfg80211_chan_def chandef;
+	struct list_head vifs;
+	struct ath_acq acq[IEEE80211_NUM_ACS];
+	int hw_queue_base;
+
+	/* do not dereference, use for comparison only */
+	struct ieee80211_vif *primary_sta;
+
+	struct ath_beacon_config beacon;
+	struct ath9k_hw_cal_data caldata;
+	struct timespec64 tsf_ts;
+	u64 tsf_val;
+	u32 last_beacon;
+
+	int flush_timeout;
+	u16 txpower;
+	u16 cur_txpower;
+	bool offchannel;
+	bool stopped;
+	bool active;
+	bool assigned;
+	bool switch_after_beacon;
+
+	short nvifs;
+	short nvifs_assigned;
+	unsigned int rxfilter;
+};
+
+enum ath_chanctx_event {
+	ATH_CHANCTX_EVENT_BEACON_PREPARE,
+	ATH_CHANCTX_EVENT_BEACON_SENT,
+	ATH_CHANCTX_EVENT_TSF_TIMER,
+	ATH_CHANCTX_EVENT_BEACON_RECEIVED,
+	ATH_CHANCTX_EVENT_AUTHORIZED,
+	ATH_CHANCTX_EVENT_SWITCH,
+	ATH_CHANCTX_EVENT_ASSIGN,
+	ATH_CHANCTX_EVENT_UNASSIGN,
+	ATH_CHANCTX_EVENT_CHANGE,
+	ATH_CHANCTX_EVENT_ENABLE_MULTICHANNEL,
+};
+
+enum ath_chanctx_state {
+	ATH_CHANCTX_STATE_IDLE,
+	ATH_CHANCTX_STATE_WAIT_FOR_BEACON,
+	ATH_CHANCTX_STATE_WAIT_FOR_TIMER,
+	ATH_CHANCTX_STATE_SWITCH,
+	ATH_CHANCTX_STATE_FORCE_ACTIVE,
+};
+
+struct ath_chanctx_sched {
+	bool beacon_pending;
+	bool beacon_adjust;
+	bool offchannel_pending;
+	bool wait_switch;
+	bool force_noa_update;
+	bool extend_absence;
+	bool mgd_prepare_tx;
+	enum ath_chanctx_state state;
+	u8 beacon_miss;
+
+	u32 next_tbtt;
+	u32 switch_start_time;
+	unsigned int offchannel_duration;
+	unsigned int channel_switch_time;
+
+	/* backup, in case the hardware timer fails */
+	struct timer_list timer;
+};
+
+enum ath_offchannel_state {
+	ATH_OFFCHANNEL_IDLE,
+	ATH_OFFCHANNEL_PROBE_SEND,
+	ATH_OFFCHANNEL_PROBE_WAIT,
+	ATH_OFFCHANNEL_SUSPEND,
+	ATH_OFFCHANNEL_ROC_START,
+	ATH_OFFCHANNEL_ROC_WAIT,
+	ATH_OFFCHANNEL_ROC_DONE,
+};
+
+enum ath_roc_complete_reason {
+	ATH_ROC_COMPLETE_EXPIRE,
+	ATH_ROC_COMPLETE_ABORT,
+	ATH_ROC_COMPLETE_CANCEL,
+};
+
+struct ath_offchannel {
+	struct ath_chanctx chan;
+	struct timer_list timer;
+	struct cfg80211_scan_request *scan_req;
+	struct ieee80211_vif *scan_vif;
+	int scan_idx;
+	enum ath_offchannel_state state;
+	struct ieee80211_channel *roc_chan;
+	struct ieee80211_vif *roc_vif;
+	int roc_duration;
+	int duration;
+};
+
+static inline struct ath_atx_tid *
+ath_node_to_tid(struct ath_node *an, u8 tidno)
+{
+	struct ieee80211_sta *sta = an->sta;
+	struct ieee80211_vif *vif = an->vif;
+	struct ieee80211_txq *txq;
+
+	BUG_ON(!vif);
+	if (sta)
+		txq = sta->txq[tidno % ARRAY_SIZE(sta->txq)];
+	else
+		txq = vif->txq;
+
+	return (struct ath_atx_tid *) txq->drv_priv;
+}
+
+#define case_rtn_string(val) case val: return #val
+
+#define ath_for_each_chanctx(_sc, _ctx)                             \
+	for (ctx = &sc->chanctx[0];                                 \
+	     ctx <= &sc->chanctx[ARRAY_SIZE(sc->chanctx) - 1];      \
+	     ctx++)
+
+void ath_chanctx_init(struct ath_softc *sc);
+void ath_chanctx_set_channel(struct ath_softc *sc, struct ath_chanctx *ctx,
+			     struct cfg80211_chan_def *chandef);
+
+#ifdef CONFIG_ATH9K_CHANNEL_CONTEXT
+
+static inline struct ath_chanctx *
+ath_chanctx_get(struct ieee80211_chanctx_conf *ctx)
+{
+	struct ath_chanctx **ptr = (void *) ctx->drv_priv;
+	return *ptr;
+}
+
+bool ath9k_is_chanctx_enabled(void);
+void ath9k_fill_chanctx_ops(void);
+void ath9k_init_channel_context(struct ath_softc *sc);
+void ath9k_offchannel_init(struct ath_softc *sc);
+void ath9k_deinit_channel_context(struct ath_softc *sc);
+int ath9k_init_p2p(struct ath_softc *sc);
+void ath9k_deinit_p2p(struct ath_softc *sc);
+void ath9k_p2p_remove_vif(struct ath_softc *sc,
+			  struct ieee80211_vif *vif);
+void ath9k_p2p_beacon_sync(struct ath_softc *sc);
+void ath9k_p2p_bss_info_changed(struct ath_softc *sc,
+				struct ieee80211_vif *vif);
+void ath9k_beacon_add_noa(struct ath_softc *sc, struct ath_vif *avp,
+			  struct sk_buff *skb);
+void ath9k_p2p_ps_timer(void *priv);
+void ath9k_chanctx_wake_queues(struct ath_softc *sc, struct ath_chanctx *ctx);
+void ath9k_chanctx_stop_queues(struct ath_softc *sc, struct ath_chanctx *ctx);
+void ath_chanctx_check_active(struct ath_softc *sc, struct ath_chanctx *ctx);
+
+void ath_chanctx_beacon_recv_ev(struct ath_softc *sc,
+				enum ath_chanctx_event ev);
+void ath_chanctx_beacon_sent_ev(struct ath_softc *sc,
+				enum ath_chanctx_event ev);
+void ath_chanctx_event(struct ath_softc *sc, struct ieee80211_vif *vif,
+		       enum ath_chanctx_event ev);
+void ath_chanctx_set_next(struct ath_softc *sc, bool force);
+void ath_offchannel_next(struct ath_softc *sc);
+void ath_scan_complete(struct ath_softc *sc, bool abort);
+void ath_roc_complete(struct ath_softc *sc,
+		      enum ath_roc_complete_reason reason);
+struct ath_chanctx* ath_is_go_chanctx_present(struct ath_softc *sc);
+
+#else
+
+static inline bool ath9k_is_chanctx_enabled(void)
+{
+	return false;
+}
+static inline void ath9k_fill_chanctx_ops(void)
+{
+}
+static inline void ath9k_init_channel_context(struct ath_softc *sc)
+{
+}
+static inline void ath9k_offchannel_init(struct ath_softc *sc)
+{
+}
+static inline void ath9k_deinit_channel_context(struct ath_softc *sc)
+{
+}
+static inline void ath_chanctx_beacon_recv_ev(struct ath_softc *sc,
+					      enum ath_chanctx_event ev)
+{
+}
+static inline void ath_chanctx_beacon_sent_ev(struct ath_softc *sc,
+					      enum ath_chanctx_event ev)
+{
+}
+static inline void ath_chanctx_event(struct ath_softc *sc,
+				     struct ieee80211_vif *vif,
+				     enum ath_chanctx_event ev)
+{
+}
+static inline int ath9k_init_p2p(struct ath_softc *sc)
+{
+	return 0;
+}
+static inline void ath9k_deinit_p2p(struct ath_softc *sc)
+{
+}
+static inline void ath9k_p2p_remove_vif(struct ath_softc *sc,
+					struct ieee80211_vif *vif)
+{
+}
+static inline void ath9k_p2p_beacon_sync(struct ath_softc *sc)
+{
+}
+static inline void ath9k_p2p_bss_info_changed(struct ath_softc *sc,
+					      struct ieee80211_vif *vif)
+{
+}
+static inline void ath9k_beacon_add_noa(struct ath_softc *sc, struct ath_vif *avp,
+					struct sk_buff *skb)
+{
+}
+static inline void ath9k_p2p_ps_timer(struct ath_softc *sc)
+{
+}
+static inline void ath9k_chanctx_wake_queues(struct ath_softc *sc,
+					     struct ath_chanctx *ctx)
+{
+}
+static inline void ath9k_chanctx_stop_queues(struct ath_softc *sc,
+					     struct ath_chanctx *ctx)
+{
+}
+static inline void ath_chanctx_check_active(struct ath_softc *sc,
+					    struct ath_chanctx *ctx)
+{
+}
+
+#endif /* CONFIG_ATH9K_CHANNEL_CONTEXT */
+
+static inline void ath_txq_lock(struct ath_softc *sc, struct ath_txq *txq)
+{
+	spin_lock_bh(&txq->axq_lock);
+}
+static inline void ath_txq_unlock(struct ath_softc *sc, struct ath_txq *txq)
+{
+	spin_unlock_bh(&txq->axq_lock);
+}
+
+void ath_startrecv(struct ath_softc *sc);
+bool ath_stoprecv(struct ath_softc *sc);
+u32 ath_calcrxfilter(struct ath_softc *sc);
+int ath_rx_init(struct ath_softc *sc, int nbufs);
+void ath_rx_cleanup(struct ath_softc *sc);
+int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp);
+struct ath_txq *ath_txq_setup(struct ath_softc *sc, int qtype, int subtype);
+void ath_txq_unlock_complete(struct ath_softc *sc, struct ath_txq *txq);
+void ath_tx_cleanupq(struct ath_softc *sc, struct ath_txq *txq);
+bool ath_drain_all_txq(struct ath_softc *sc);
+void ath_draintxq(struct ath_softc *sc, struct ath_txq *txq);
+void ath_tx_node_init(struct ath_softc *sc, struct ath_node *an);
+void ath_tx_node_cleanup(struct ath_softc *sc, struct ath_node *an);
+void ath_txq_schedule(struct ath_softc *sc, struct ath_txq *txq);
+void ath_txq_schedule_all(struct ath_softc *sc);
+int ath_tx_init(struct ath_softc *sc, int nbufs);
+int ath_txq_update(struct ath_softc *sc, int qnum,
+		   struct ath9k_tx_queue_info *q);
+u32 ath_pkt_duration(struct ath_softc *sc, u8 rix, int pktlen,
+		     int width, int half_gi, bool shortPreamble);
+void ath_update_max_aggr_framelen(struct ath_softc *sc, int queue, int txop);
+void ath_assign_seq(struct ath_common *common, struct sk_buff *skb);
+int ath_tx_start(struct ieee80211_hw *hw, struct sk_buff *skb,
+		 struct ath_tx_control *txctl);
+void ath_tx_cabq(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+		 struct sk_buff *skb);
+void ath_tx_tasklet(struct ath_softc *sc);
+void ath_tx_edma_tasklet(struct ath_softc *sc);
+int ath_tx_aggr_start(struct ath_softc *sc, struct ieee80211_sta *sta,
+		      u16 tid, u16 *ssn);
+void ath_tx_aggr_stop(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid);
+
+void ath_tx_aggr_wakeup(struct ath_softc *sc, struct ath_node *an);
+void ath_tx_aggr_sleep(struct ieee80211_sta *sta, struct ath_softc *sc,
+		       struct ath_node *an);
+void ath9k_release_buffered_frames(struct ieee80211_hw *hw,
+				   struct ieee80211_sta *sta,
+				   u16 tids, int nframes,
+				   enum ieee80211_frame_release_type reason,
+				   bool more_data);
+void ath9k_wake_tx_queue(struct ieee80211_hw *hw, struct ieee80211_txq *queue);
+
+/********/
+/* VIFs */
+/********/
+
+#define P2P_DEFAULT_CTWIN 10
+
+struct ath_vif {
+	struct list_head list;
+
+	u16 seq_no;
+
+	/* BSS info */
+	u8 bssid[ETH_ALEN] __aligned(2);
+	u16 aid;
+	bool assoc;
+
+	struct ieee80211_vif *vif;
+	struct ath_node mcast_node;
+	int av_bslot;
+	__le64 tsf_adjust; /* TSF adjustment for staggered beacons */
+	struct ath_buf *av_bcbuf;
+	struct ath_chanctx *chanctx;
+
+	/* P2P Client */
+	struct ieee80211_noa_data noa;
+
+	/* P2P GO */
+	u8 noa_index;
+	u32 offchannel_start;
+	u32 offchannel_duration;
+
+	/* These are used for both periodic and one-shot */
+	u32 noa_start;
+	u32 noa_duration;
+	bool periodic_noa;
+	bool oneshot_noa;
+};
+
+struct ath9k_vif_iter_data {
+	u8 hw_macaddr[ETH_ALEN]; /* address of the first vif */
+	u8 mask[ETH_ALEN]; /* bssid mask */
+	bool has_hw_macaddr;
+	u8 slottime;
+	bool beacons;
+
+	int naps;      /* number of AP vifs */
+	int nmeshes;   /* number of mesh vifs */
+	int nstations; /* number of station vifs */
+	int nwds;      /* number of WDS vifs */
+	int nadhocs;   /* number of adhoc vifs */
+	int nocbs;     /* number of OCB vifs */
+	int nbcnvifs;  /* number of beaconing vifs */
+	struct ieee80211_vif *primary_beacon_vif;
+	struct ieee80211_vif *primary_sta;
+};
+
+void ath9k_calculate_iter_data(struct ath_softc *sc,
+			       struct ath_chanctx *ctx,
+			       struct ath9k_vif_iter_data *iter_data);
+void ath9k_calculate_summary_state(struct ath_softc *sc,
+				   struct ath_chanctx *ctx);
+void ath9k_set_txpower(struct ath_softc *sc, struct ieee80211_vif *vif);
+
+/*******************/
+/* Beacon Handling */
+/*******************/
+
+/*
+ * Regardless of the number of beacons we stagger, (i.e. regardless of the
+ * number of BSSIDs) if a given beacon does not go out even after waiting this
+ * number of beacon intervals, the game's up.
+ */
+#define BSTUCK_THRESH           	9
+#define	ATH_BCBUF               	8
+#define ATH_DEFAULT_BINTVAL     	100 /* TU */
+#define ATH_DEFAULT_BMISS_LIMIT 	10
+
+#define TSF_TO_TU(_h,_l) \
+	((((u32)(_h)) << 22) | (((u32)(_l)) >> 10))
+
+struct ath_beacon {
+	enum {
+		OK,		/* no change needed */
+		UPDATE,		/* update pending */
+		COMMIT		/* beacon sent, commit change */
+	} updateslot;		/* slot time update fsm */
+
+	u32 beaconq;
+	u32 bmisscnt;
+	struct ieee80211_vif *bslot[ATH_BCBUF];
+	int slottime;
+	int slotupdate;
+	struct ath_descdma bdma;
+	struct ath_txq *cabq;
+	struct list_head bbuf;
+
+	bool tx_processed;
+	bool tx_last;
+};
+
+void ath9k_beacon_tasklet(unsigned long data);
+void ath9k_beacon_config(struct ath_softc *sc, struct ieee80211_vif *main_vif,
+			 bool beacons);
+void ath9k_beacon_assign_slot(struct ath_softc *sc, struct ieee80211_vif *vif);
+void ath9k_beacon_remove_slot(struct ath_softc *sc, struct ieee80211_vif *vif);
+void ath9k_beacon_ensure_primary_slot(struct ath_softc *sc);
+void ath9k_set_beacon(struct ath_softc *sc);
+bool ath9k_csa_is_finished(struct ath_softc *sc, struct ieee80211_vif *vif);
+void ath9k_csa_update(struct ath_softc *sc);
+
+/*******************/
+/* Link Monitoring */
+/*******************/
+
+#define ATH_STA_SHORT_CALINTERVAL 1000    /* 1 second */
+#define ATH_AP_SHORT_CALINTERVAL  100     /* 100 ms */
+#define ATH_ANI_POLLINTERVAL_OLD  100     /* 100 ms */
+#define ATH_ANI_POLLINTERVAL_NEW  1000    /* 1000 ms */
+#define ATH_LONG_CALINTERVAL_INT  1000    /* 1000 ms */
+#define ATH_LONG_CALINTERVAL      30000   /* 30 seconds */
+#define ATH_RESTART_CALINTERVAL   1200000 /* 20 minutes */
+#define ATH_ANI_MAX_SKIP_COUNT    10
+#define ATH_PAPRD_TIMEOUT         100 /* msecs */
+#define ATH_PLL_WORK_INTERVAL     100
+
+void ath_hw_check_work(struct work_struct *work);
+void ath_reset_work(struct work_struct *work);
+bool ath_hw_check(struct ath_softc *sc);
+void ath_hw_pll_work(struct work_struct *work);
+void ath_paprd_calibrate(struct work_struct *work);
+void ath_ani_calibrate(struct timer_list *t);
+void ath_start_ani(struct ath_softc *sc);
+void ath_stop_ani(struct ath_softc *sc);
+void ath_check_ani(struct ath_softc *sc);
+int ath_update_survey_stats(struct ath_softc *sc);
+void ath_update_survey_nf(struct ath_softc *sc, int channel);
+void ath9k_queue_reset(struct ath_softc *sc, enum ath_reset_type type);
+void ath_ps_full_sleep(struct timer_list *t);
+void __ath9k_flush(struct ieee80211_hw *hw, u32 queues, bool drop,
+		   bool sw_pending, bool timeout_override);
+
+/**********/
+/* BTCOEX */
+/**********/
+
+#define ATH_DUMP_BTCOEX(_s, _val)				\
+	do {							\
+		len += scnprintf(buf + len, size - len,		\
+				 "%20s : %10d\n", _s, (_val));	\
+	} while (0)
+
+enum bt_op_flags {
+	BT_OP_PRIORITY_DETECTED,
+	BT_OP_SCAN,
+};
+
+struct ath_btcoex {
+	spinlock_t btcoex_lock;
+	struct timer_list period_timer; /* Timer for BT period */
+	struct timer_list no_stomp_timer;
+	u32 bt_priority_cnt;
+	unsigned long bt_priority_time;
+	unsigned long op_flags;
+	int bt_stomp_type; /* Types of BT stomping */
+	u32 btcoex_no_stomp; /* in msec */
+	u32 btcoex_period; /* in msec */
+	u32 btscan_no_stomp; /* in msec */
+	u32 duty_cycle;
+	u32 bt_wait_time;
+	int rssi_count;
+	struct ath_mci_profile mci;
+	u8 stomp_audio;
+};
+
+#ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
+int ath9k_init_btcoex(struct ath_softc *sc);
+void ath9k_deinit_btcoex(struct ath_softc *sc);
+void ath9k_start_btcoex(struct ath_softc *sc);
+void ath9k_stop_btcoex(struct ath_softc *sc);
+void ath9k_btcoex_timer_resume(struct ath_softc *sc);
+void ath9k_btcoex_timer_pause(struct ath_softc *sc);
+void ath9k_btcoex_handle_interrupt(struct ath_softc *sc, u32 status);
+u16 ath9k_btcoex_aggr_limit(struct ath_softc *sc, u32 max_4ms_framelen);
+void ath9k_btcoex_stop_gen_timer(struct ath_softc *sc);
+int ath9k_dump_btcoex(struct ath_softc *sc, u8 *buf, u32 size);
+#else
+static inline int ath9k_init_btcoex(struct ath_softc *sc)
+{
+	return 0;
+}
+static inline void ath9k_deinit_btcoex(struct ath_softc *sc)
+{
+}
+static inline void ath9k_start_btcoex(struct ath_softc *sc)
+{
+}
+static inline void ath9k_stop_btcoex(struct ath_softc *sc)
+{
+}
+static inline void ath9k_btcoex_handle_interrupt(struct ath_softc *sc,
+						 u32 status)
+{
+}
+static inline u16 ath9k_btcoex_aggr_limit(struct ath_softc *sc,
+					  u32 max_4ms_framelen)
+{
+	return 0;
+}
+static inline void ath9k_btcoex_stop_gen_timer(struct ath_softc *sc)
+{
+}
+static inline int ath9k_dump_btcoex(struct ath_softc *sc, u8 *buf, u32 size)
+{
+	return 0;
+}
+#endif /* CONFIG_ATH9K_BTCOEX_SUPPORT */
+
+/********************/
+/*   LED Control    */
+/********************/
+
+#define ATH_LED_PIN_DEF 		1
+#define ATH_LED_PIN_9287		8
+#define ATH_LED_PIN_9300		10
+#define ATH_LED_PIN_9485		6
+#define ATH_LED_PIN_9462		4
+
+#ifdef CONFIG_MAC80211_LEDS
+void ath_init_leds(struct ath_softc *sc);
+void ath_deinit_leds(struct ath_softc *sc);
+#else
+static inline void ath_init_leds(struct ath_softc *sc)
+{
+}
+
+static inline void ath_deinit_leds(struct ath_softc *sc)
+{
+}
+#endif
+
+/************************/
+/* Wake on Wireless LAN */
+/************************/
+
+#ifdef CONFIG_ATH9K_WOW
+void ath9k_init_wow(struct ieee80211_hw *hw);
+void ath9k_deinit_wow(struct ieee80211_hw *hw);
+int ath9k_suspend(struct ieee80211_hw *hw,
+		  struct cfg80211_wowlan *wowlan);
+int ath9k_resume(struct ieee80211_hw *hw);
+void ath9k_set_wakeup(struct ieee80211_hw *hw, bool enabled);
+#else
+static inline void ath9k_init_wow(struct ieee80211_hw *hw)
+{
+}
+static inline void ath9k_deinit_wow(struct ieee80211_hw *hw)
+{
+}
+static inline int ath9k_suspend(struct ieee80211_hw *hw,
+				struct cfg80211_wowlan *wowlan)
+{
+	return 0;
+}
+static inline int ath9k_resume(struct ieee80211_hw *hw)
+{
+	return 0;
+}
+static inline void ath9k_set_wakeup(struct ieee80211_hw *hw, bool enabled)
+{
+}
+#endif /* CONFIG_ATH9K_WOW */
+
+/*******************************/
+/* Antenna diversity/combining */
+/*******************************/
+
+#define ATH_ANT_RX_CURRENT_SHIFT 4
+#define ATH_ANT_RX_MAIN_SHIFT 2
+#define ATH_ANT_RX_MASK 0x3
+
+#define ATH_ANT_DIV_COMB_SHORT_SCAN_INTR 50
+#define ATH_ANT_DIV_COMB_SHORT_SCAN_PKTCOUNT 0x100
+#define ATH_ANT_DIV_COMB_MAX_PKTCOUNT 0x200
+#define ATH_ANT_DIV_COMB_INIT_COUNT 95
+#define ATH_ANT_DIV_COMB_MAX_COUNT 100
+#define ATH_ANT_DIV_COMB_ALT_ANT_RATIO 30
+#define ATH_ANT_DIV_COMB_ALT_ANT_RATIO2 20
+#define ATH_ANT_DIV_COMB_ALT_ANT_RATIO_LOW_RSSI 50
+#define ATH_ANT_DIV_COMB_ALT_ANT_RATIO2_LOW_RSSI 50
+
+#define ATH_ANT_DIV_COMB_LNA1_DELTA_HI -4
+#define ATH_ANT_DIV_COMB_LNA1_DELTA_MID -2
+#define ATH_ANT_DIV_COMB_LNA1_DELTA_LOW 2
+
+struct ath_ant_comb {
+	u16 count;
+	u16 total_pkt_count;
+	bool scan;
+	bool scan_not_start;
+	int main_total_rssi;
+	int alt_total_rssi;
+	int alt_recv_cnt;
+	int main_recv_cnt;
+	int rssi_lna1;
+	int rssi_lna2;
+	int rssi_add;
+	int rssi_sub;
+	int rssi_first;
+	int rssi_second;
+	int rssi_third;
+	int ant_ratio;
+	int ant_ratio2;
+	bool alt_good;
+	int quick_scan_cnt;
+	enum ath9k_ant_div_comb_lna_conf main_conf;
+	enum ath9k_ant_div_comb_lna_conf first_quick_scan_conf;
+	enum ath9k_ant_div_comb_lna_conf second_quick_scan_conf;
+	bool first_ratio;
+	bool second_ratio;
+	unsigned long scan_start_time;
+
+	/*
+	 * Card-specific config values.
+	 */
+	int low_rssi_thresh;
+	int fast_div_bias;
+};
+
+void ath_ant_comb_scan(struct ath_softc *sc, struct ath_rx_status *rs);
+
+/********************/
+/* Main driver core */
+/********************/
+
+#define ATH9K_PCI_CUS198          0x0001
+#define ATH9K_PCI_CUS230          0x0002
+#define ATH9K_PCI_CUS217          0x0004
+#define ATH9K_PCI_CUS252          0x0008
+#define ATH9K_PCI_WOW             0x0010
+#define ATH9K_PCI_BT_ANT_DIV      0x0020
+#define ATH9K_PCI_D3_L1_WAR       0x0040
+#define ATH9K_PCI_AR9565_1ANT     0x0080
+#define ATH9K_PCI_AR9565_2ANT     0x0100
+#define ATH9K_PCI_NO_PLL_PWRSAVE  0x0200
+#define ATH9K_PCI_KILLER          0x0400
+#define ATH9K_PCI_LED_ACT_HI      0x0800
+
+/*
+ * Default cache line size, in bytes.
+ * Used when PCI device not fully initialized by bootrom/BIOS
+*/
+#define DEFAULT_CACHELINE       32
+#define ATH_CABQ_READY_TIME     80      /* % of beacon interval */
+#define ATH_TXPOWER_MAX         100     /* .5 dBm units */
+#define MAX_GTT_CNT             5
+
+/* Powersave flags */
+#define PS_WAIT_FOR_BEACON        BIT(0)
+#define PS_WAIT_FOR_CAB           BIT(1)
+#define PS_WAIT_FOR_PSPOLL_DATA   BIT(2)
+#define PS_WAIT_FOR_TX_ACK        BIT(3)
+#define PS_BEACON_SYNC            BIT(4)
+#define PS_WAIT_FOR_ANI           BIT(5)
+
+#define ATH9K_NUM_CHANCTX  2 /* supports 2 operating channels */
+
+#define AIRTIME_USE_TX		BIT(0)
+#define AIRTIME_USE_RX		BIT(1)
+#define AIRTIME_USE_NEW_QUEUES	BIT(2)
+#define AIRTIME_ACTIVE(flags) (!!(flags & (AIRTIME_USE_TX|AIRTIME_USE_RX)))
+
+struct ath_softc {
+	struct ieee80211_hw *hw;
+	struct device *dev;
+
+	struct survey_info *cur_survey;
+	struct survey_info survey[ATH9K_NUM_CHANNELS];
+
+	spinlock_t intr_lock;
+	struct tasklet_struct intr_tq;
+	struct tasklet_struct bcon_tasklet;
+	struct ath_hw *sc_ah;
+	void __iomem *mem;
+	int irq;
+	spinlock_t sc_serial_rw;
+	spinlock_t sc_pm_lock;
+	spinlock_t sc_pcu_lock;
+	struct mutex mutex;
+	struct work_struct paprd_work;
+	struct work_struct hw_reset_work;
+	struct completion paprd_complete;
+	wait_queue_head_t tx_wait;
+
+#ifdef CONFIG_ATH9K_CHANNEL_CONTEXT
+	struct work_struct chanctx_work;
+	struct ath_gen_timer *p2p_ps_timer;
+	struct ath_vif *p2p_ps_vif;
+	struct ath_chanctx_sched sched;
+	struct ath_offchannel offchannel;
+	struct ath_chanctx *next_chan;
+	struct completion go_beacon;
+	struct timespec64 last_event_time;
+#endif
+
+	unsigned long driver_data;
+
+	u8 gtt_cnt;
+	u32 intrstatus;
+	u16 ps_flags; /* PS_* */
+	bool ps_enabled;
+	bool ps_idle;
+	short nbcnvifs;
+	unsigned long ps_usecount;
+
+	u16 airtime_flags; /* AIRTIME_* */
+
+	struct ath_rx rx;
+	struct ath_tx tx;
+	struct ath_beacon beacon;
+
+	struct cfg80211_chan_def cur_chandef;
+	struct ath_chanctx chanctx[ATH9K_NUM_CHANCTX];
+	struct ath_chanctx *cur_chan;
+	spinlock_t chan_lock;
+
+#ifdef CONFIG_MAC80211_LEDS
+	bool led_registered;
+	char led_name[32];
+	struct led_classdev led_cdev;
+#endif
+
+#ifdef CONFIG_ATH9K_DEBUGFS
+	struct ath9k_debug debug;
+#endif
+	struct delayed_work hw_check_work;
+	struct delayed_work hw_pll_work;
+	struct timer_list sleep_timer;
+
+#ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
+	struct ath_btcoex btcoex;
+	struct ath_mci_coex mci_coex;
+	struct work_struct mci_work;
+#endif
+
+	struct ath_descdma txsdma;
+
+	struct ath_ant_comb ant_comb;
+	u8 ant_tx, ant_rx;
+	struct dfs_pattern_detector *dfs_detector;
+	u64 dfs_prev_pulse_ts;
+	u32 wow_enabled;
+
+	struct ath_spec_scan_priv spec_priv;
+
+	struct ieee80211_vif *tx99_vif;
+	struct sk_buff *tx99_skb;
+	bool tx99_state;
+	s16 tx99_power;
+
+#ifdef CONFIG_ATH9K_WOW
+	u32 wow_intr_before_sleep;
+	bool force_wow;
+#endif
+
+#ifdef CONFIG_ATH9K_HWRNG
+	u32 rng_last;
+	struct task_struct *rng_task;
+#endif
+};
+
+/********/
+/* TX99 */
+/********/
+
+#ifdef CONFIG_ATH9K_TX99
+void ath9k_tx99_init_debug(struct ath_softc *sc);
+int ath9k_tx99_send(struct ath_softc *sc, struct sk_buff *skb,
+		    struct ath_tx_control *txctl);
+#else
+static inline void ath9k_tx99_init_debug(struct ath_softc *sc)
+{
+}
+static inline int ath9k_tx99_send(struct ath_softc *sc,
+				  struct sk_buff *skb,
+				  struct ath_tx_control *txctl)
+{
+	return 0;
+}
+#endif /* CONFIG_ATH9K_TX99 */
+
+/***************************/
+/* Random Number Generator */
+/***************************/
+#ifdef CONFIG_ATH9K_HWRNG
+void ath9k_rng_start(struct ath_softc *sc);
+void ath9k_rng_stop(struct ath_softc *sc);
+#else
+static inline void ath9k_rng_start(struct ath_softc *sc)
+{
+}
+
+static inline void ath9k_rng_stop(struct ath_softc *sc)
+{
+}
+#endif
+
+static inline void ath_read_cachesize(struct ath_common *common, int *csz)
+{
+	common->bus_ops->read_cachesize(common, csz);
+}
+
+void ath9k_tasklet(unsigned long data);
+int ath_cabq_update(struct ath_softc *);
+u8 ath9k_parse_mpdudensity(u8 mpdudensity);
+irqreturn_t ath_isr(int irq, void *dev);
+int ath_reset(struct ath_softc *sc, struct ath9k_channel *hchan);
+void ath_cancel_work(struct ath_softc *sc);
+void ath_restart_work(struct ath_softc *sc);
+int ath9k_init_device(u16 devid, struct ath_softc *sc,
+		    const struct ath_bus_ops *bus_ops);
+void ath9k_deinit_device(struct ath_softc *sc);
+void ath9k_reload_chainmask_settings(struct ath_softc *sc);
+u8 ath_txchainmask_reduction(struct ath_softc *sc, u8 chainmask, u32 rate);
+void ath_start_rfkill_poll(struct ath_softc *sc);
+void ath9k_rfkill_poll_state(struct ieee80211_hw *hw);
+void ath9k_ps_wakeup(struct ath_softc *sc);
+void ath9k_ps_restore(struct ath_softc *sc);
+
+#ifdef CONFIG_ATH9K_PCI
+int ath_pci_init(void);
+void ath_pci_exit(void);
+#else
+static inline int ath_pci_init(void) { return 0; };
+static inline void ath_pci_exit(void) {};
+#endif
+
+#ifdef CONFIG_ATH9K_AHB
+int ath_ahb_init(void);
+void ath_ahb_exit(void);
+#else
+static inline int ath_ahb_init(void) { return 0; };
+static inline void ath_ahb_exit(void) {};
+#endif
+
+#endif /* ATH9K_H */