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Diffstat (limited to 'drivers/net/wireless/ath/ath9k/ath9k.h')
-rw-r--r--drivers/net/wireless/ath/ath9k/ath9k.h1168
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 */
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-27 18:38:50 +0000