-/*
- * Copyright (c) 2008 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 CORE_H
-#define CORE_H
-
-#include <linux/version.h>
-#include <linux/autoconf.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/spinlock.h>
-#include <linux/errno.h>
-#include <linux/skbuff.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/ip.h>
-#include <linux/tcp.h>
-#include <linux/in.h>
-#include <linux/delay.h>
-#include <linux/wait.h>
-#include <linux/pci.h>
-#include <linux/interrupt.h>
-#include <linux/sched.h>
-#include <linux/list.h>
-#include <asm/byteorder.h>
-#include <linux/scatterlist.h>
-#include <asm/page.h>
-#include <net/mac80211.h>
-
-#include "ath9k.h"
-#include "rc.h"
-
-struct ath_node;
-
-/******************/
-/* Utility macros */
-/******************/
-
-/* An attempt will be made to merge these link list helpers upstream
- * instead */
-
-static inline void __list_splice_tail(const struct list_head *list,
- struct list_head *head)
-{
- struct list_head *first = list->next;
- struct list_head *last = list->prev;
- struct list_head *current_tail = head->prev;
-
- current_tail->next = first;
- last->next = head;
- head->prev = last;
- first->prev = current_tail;
-}
-
-static inline void __list_cut_position(struct list_head *list,
- struct list_head *head, struct list_head *entry)
-{
- struct list_head *new_first =
- (entry->next != head) ? entry->next : head;
- list->next = head->next;
- list->next->prev = list;
- list->prev = entry;
- entry->next = list;
- head->next = new_first;
- new_first->prev = head;
-}
-
-/**
- * list_splice_tail - join two lists, each list being a queue
- * @list: the new list to add.
- * @head: the place to add it in the first list.
- */
-static inline void list_splice_tail(const struct list_head *list,
- struct list_head *head)
-{
- if (!list_empty(list))
- __list_splice_tail(list, head);
-}
-
-/**
- * list_splice_tail_init - join two lists, each list being a queue, and
- * reinitialise the emptied list.
- * @list: the new list to add.
- * @head: the place to add it in the first list.
- *
- * The list at @list is reinitialised
- */
-static inline void list_splice_tail_init(struct list_head *list,
- struct list_head *head)
-{
- if (!list_empty(list)) {
- __list_splice_tail(list, head);
- INIT_LIST_HEAD(list);
- }
-}
-
-/**
- * list_cut_position - cut a list into two
- * @list: a new list to add all removed entries
- * @head: a list with entries
- * @entry: an entry within head, could be the head itself
- * and if so we won't won't cut the list
- */
-static inline void list_cut_position(struct list_head *list,
- struct list_head *head, struct list_head *entry)
-{
- BUG_ON(list_empty(head));
- if (list_is_singular(head))
- BUG_ON(head->next != entry && head != entry);
- if (entry == head)
- INIT_LIST_HEAD(list);
- else
- __list_cut_position(list, head, entry);
-}
-
-/* Macro to expand scalars to 64-bit objects */
-
-#define ito64(x) (sizeof(x) == 8) ? \
- (((unsigned long long int)(x)) & (0xff)) : \
- (sizeof(x) == 16) ? \
- (((unsigned long long int)(x)) & 0xffff) : \
- ((sizeof(x) == 32) ? \
- (((unsigned long long int)(x)) & 0xffffffff) : \
- (unsigned long long int)(x))
-
-/* increment with wrap-around */
-#define INCR(_l, _sz) do { \
- (_l)++; \
- (_l) &= ((_sz) - 1); \
- } while (0)
-
-/* decrement with wrap-around */
-#define DECR(_l, _sz) do { \
- (_l)--; \
- (_l) &= ((_sz) - 1); \
- } while (0)
-
-#define A_MAX(a, b) ((a) > (b) ? (a) : (b))
-
-#define ASSERT(exp) do { \
- if (unlikely(!(exp))) { \
- BUG(); \
- } \
- } while (0)
-
-/* XXX: remove */
-#define memzero(_buf, _len) memset(_buf, 0, _len)
-
-#define get_dma_mem_context(var, field) (&((var)->field))
-#define copy_dma_mem_context(dst, src) (*dst = *src)
-
-#define ATH9K_BH_STATUS_INTACT 0
-#define ATH9K_BH_STATUS_CHANGE 1
-
-#define ATH_TXQ_SETUP(sc, i) ((sc)->sc_txqsetup & (1<<i))
-
-static inline unsigned long get_timestamp(void)
-{
- return ((jiffies / HZ) * 1000) + (jiffies % HZ) * (1000 / HZ);
-}
-
-/*************/
-/* Debugging */
-/*************/
-
-enum ATH_DEBUG {
- ATH_DBG_RESET = 0x00000001,
- ATH_DBG_PHY_IO = 0x00000002,
- ATH_DBG_REG_IO = 0x00000004,
- ATH_DBG_QUEUE = 0x00000008,
- ATH_DBG_EEPROM = 0x00000010,
- ATH_DBG_NF_CAL = 0x00000020,
- ATH_DBG_CALIBRATE = 0x00000040,
- ATH_DBG_CHANNEL = 0x00000080,
- ATH_DBG_INTERRUPT = 0x00000100,
- ATH_DBG_REGULATORY = 0x00000200,
- ATH_DBG_ANI = 0x00000400,
- ATH_DBG_POWER_MGMT = 0x00000800,
- ATH_DBG_XMIT = 0x00001000,
- ATH_DBG_BEACON = 0x00002000,
- ATH_DBG_RATE = 0x00004000,
- ATH_DBG_CONFIG = 0x00008000,
- ATH_DBG_KEYCACHE = 0x00010000,
- ATH_DBG_AGGR = 0x00020000,
- ATH_DBG_FATAL = 0x00040000,
- ATH_DBG_ANY = 0xffffffff
-};
-
-#define DBG_DEFAULT (ATH_DBG_FATAL)
-
-#define DPRINTF(sc, _m, _fmt, ...) do { \
- if (sc->sc_debug & (_m)) \
- printk(_fmt , ##__VA_ARGS__); \
- } while (0)
-
-/***************************/
-/* Load-time Configuration */
-/***************************/
-
-/* Per-instance load-time (note: NOT run-time) configurations
- * for Atheros Device */
-struct ath_config {
- u32 ath_aggr_prot;
- u16 txpowlimit;
- u16 txpowlimit_override;
- u8 cabqReadytime; /* Cabq Readytime % */
- u8 swBeaconProcess; /* Process received beacons
- in SW (vs HW) */
-};
-
-/***********************/
-/* Chainmask Selection */
-/***********************/
-
-#define ATH_CHAINMASK_SEL_TIMEOUT 6000
-/* Default - Number of last RSSI values that is used for
- * chainmask selection */
-#define ATH_CHAINMASK_SEL_RSSI_CNT 10
-/* Means use 3x3 chainmask instead of configured chainmask */
-#define ATH_CHAINMASK_SEL_3X3 7
-/* Default - Rssi threshold below which we have to switch to 3x3 */
-#define ATH_CHAINMASK_SEL_UP_RSSI_THRES 20
-/* Default - Rssi threshold above which we have to switch to
- * user configured values */
-#define ATH_CHAINMASK_SEL_DOWN_RSSI_THRES 35
-/* Struct to store the chainmask select related info */
-struct ath_chainmask_sel {
- struct timer_list timer;
- int cur_tx_mask; /* user configured or 3x3 */
- int cur_rx_mask; /* user configured or 3x3 */
- int tx_avgrssi;
- u8 switch_allowed:1, /* timer will set this */
- cm_sel_enabled:1;
-};
-
-int ath_chainmask_sel_logic(struct ath_softc *sc, struct ath_node *an);
-void ath_update_chainmask(struct ath_softc *sc, int is_ht);
-
-/*************************/
-/* Descriptor Management */
-/*************************/
-
-/* Number of descriptors per buffer. The only case where we see skbuff
-chains is due to FF aggregation in the driver. */
-#define ATH_TXDESC 1
-/* if there's more fragment for this MSDU */
-#define ATH_BF_MORE_MPDU 1
-#define ATH_TXBUF_RESET(_bf) do { \
- (_bf)->bf_status = 0; \
- (_bf)->bf_lastbf = NULL; \
- (_bf)->bf_lastfrm = NULL; \
- (_bf)->bf_next = NULL; \
- memzero(&((_bf)->bf_state), \
- sizeof(struct ath_buf_state)); \
- } while (0)
-
-struct ath_buf_state {
- int bfs_nframes; /* # frames in aggregate */
- u16 bfs_al; /* length of aggregate */
- u16 bfs_frmlen; /* length of frame */
- int bfs_seqno; /* sequence number */
- int bfs_tidno; /* tid of this frame */
- int bfs_retries; /* current retries */
- struct ath_rc_series bfs_rcs[4]; /* rate series */
- u8 bfs_isdata:1; /* is a data frame/aggregate */
- u8 bfs_isaggr:1; /* is an aggregate */
- u8 bfs_isampdu:1; /* is an a-mpdu, aggregate or not */
- u8 bfs_ht:1; /* is an HT frame */
- u8 bfs_isretried:1; /* is retried */
- u8 bfs_isxretried:1; /* is excessive retried */
- u8 bfs_shpreamble:1; /* is short preamble */
- u8 bfs_isbar:1; /* is a BAR */
- u8 bfs_ispspoll:1; /* is a PS-Poll */
- u8 bfs_aggrburst:1; /* is a aggr burst */
- u8 bfs_calcairtime:1; /* requests airtime be calculated
- when set for tx frame */
- int bfs_rifsburst_elem; /* RIFS burst/bar */
- int bfs_nrifsubframes; /* # of elements in burst */
- /* key type use to encrypt this frame */
- enum ath9k_key_type bfs_keytype;
-};
-
-#define bf_nframes bf_state.bfs_nframes
-#define bf_al bf_state.bfs_al
-#define bf_frmlen bf_state.bfs_frmlen
-#define bf_retries bf_state.bfs_retries
-#define bf_seqno bf_state.bfs_seqno
-#define bf_tidno bf_state.bfs_tidno
-#define bf_rcs bf_state.bfs_rcs
-#define bf_isdata bf_state.bfs_isdata
-#define bf_isaggr bf_state.bfs_isaggr
-#define bf_isampdu bf_state.bfs_isampdu
-#define bf_ht bf_state.bfs_ht
-#define bf_isretried bf_state.bfs_isretried
-#define bf_isxretried bf_state.bfs_isxretried
-#define bf_shpreamble bf_state.bfs_shpreamble
-#define bf_rifsburst_elem bf_state.bfs_rifsburst_elem
-#define bf_nrifsubframes bf_state.bfs_nrifsubframes
-#define bf_keytype bf_state.bfs_keytype
-#define bf_isbar bf_state.bfs_isbar
-#define bf_ispspoll bf_state.bfs_ispspoll
-#define bf_aggrburst bf_state.bfs_aggrburst
-#define bf_calcairtime bf_state.bfs_calcairtime
-
-/*
- * Abstraction of a contiguous buffer to transmit/receive. There is only
- * a single hw descriptor encapsulated here.
- */
-
-struct ath_buf {
- struct list_head list;
- struct list_head *last;
- struct ath_buf *bf_lastbf; /* last buf of this unit (a frame or
- an aggregate) */
- struct ath_buf *bf_lastfrm; /* last buf of this frame */
- struct ath_buf *bf_next; /* next subframe in the aggregate */
- struct ath_buf *bf_rifslast; /* last buf for RIFS burst */
- void *bf_mpdu; /* enclosing frame structure */
- void *bf_node; /* pointer to the node */
- struct ath_desc *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 */
- u32 bf_status;
- u16 bf_flags; /* tx descriptor flags */
- struct ath_buf_state bf_state; /* buffer state */
- dma_addr_t bf_dmacontext;
-};
-
-/*
- * reset the rx buffer.
- * any new fields added to the athbuf and require
- * reset need to be added to this macro.
- * currently bf_status is the only one requires that
- * requires reset.
- */
-#define ATH_RXBUF_RESET(_bf) ((_bf)->bf_status = 0)
-
-/* hw processing complete, desc processed by hal */
-#define ATH_BUFSTATUS_DONE 0x00000001
-/* hw processing complete, desc hold for hw */
-#define ATH_BUFSTATUS_STALE 0x00000002
-/* Rx-only: OS is done with this packet and it's ok to queued it to hw */
-#define ATH_BUFSTATUS_FREE 0x00000004
-
-/* DMA state for tx/rx descriptors */
-
-struct ath_descdma {
- const char *dd_name;
- struct ath_desc *dd_desc; /* descriptors */
- dma_addr_t dd_desc_paddr; /* physical addr of dd_desc */
- u32 dd_desc_len; /* size of dd_desc */
- struct ath_buf *dd_bufptr; /* associated buffers */
- dma_addr_t dd_dmacontext;
-};
-
-/* Abstraction of a received RX MPDU/MMPDU, or a RX fragment */
-
-struct ath_rx_context {
- struct ath_buf *ctx_rxbuf; /* associated ath_buf for rx */
-};
-#define ATH_RX_CONTEXT(skb) ((struct ath_rx_context *)skb->cb)
-
-int ath_descdma_setup(struct ath_softc *sc,
- struct ath_descdma *dd,
- struct list_head *head,
- const char *name,
- int nbuf,
- int ndesc);
-int ath_desc_alloc(struct ath_softc *sc);
-void ath_desc_free(struct ath_softc *sc);
-void ath_descdma_cleanup(struct ath_softc *sc,
- struct ath_descdma *dd,
- struct list_head *head);
-
-/******/
-/* RX */
-/******/
-
-#define ATH_MAX_ANTENNA 3
-#define ATH_RXBUF 512
-#define ATH_RX_TIMEOUT 40 /* 40 milliseconds */
-#define WME_NUM_TID 16
-#define IEEE80211_BAR_CTL_TID_M 0xF000 /* tid mask */
-#define IEEE80211_BAR_CTL_TID_S 2 /* tid shift */
-
-enum ATH_RX_TYPE {
- ATH_RX_NON_CONSUMED = 0,
- ATH_RX_CONSUMED
-};
-
-/* per frame rx status block */
-struct ath_recv_status {
- u64 tsf; /* mac tsf */
- int8_t rssi; /* RSSI (noise floor ajusted) */
- int8_t rssictl[ATH_MAX_ANTENNA]; /* RSSI (noise floor ajusted) */
- int8_t rssiextn[ATH_MAX_ANTENNA]; /* RSSI (noise floor ajusted) */
- int8_t abs_rssi; /* absolute RSSI */
- u8 rateieee; /* data rate received (IEEE rate code) */
- u8 ratecode; /* phy rate code */
- int rateKbps; /* data rate received (Kbps) */
- int antenna; /* rx antenna */
- int flags; /* status of associated skb */
-#define ATH_RX_FCS_ERROR 0x01
-#define ATH_RX_MIC_ERROR 0x02
-#define ATH_RX_DECRYPT_ERROR 0x04
-#define ATH_RX_RSSI_VALID 0x08
-/* if any of ctl,extn chainrssis are valid */
-#define ATH_RX_CHAIN_RSSI_VALID 0x10
-/* if extn chain rssis are valid */
-#define ATH_RX_RSSI_EXTN_VALID 0x20
-/* set if 40Mhz, clear if 20Mhz */
-#define ATH_RX_40MHZ 0x40
-/* set if short GI, clear if full GI */
-#define ATH_RX_SHORT_GI 0x80
-};
-
-struct ath_rxbuf {
- struct sk_buff *rx_wbuf; /* buffer */
- unsigned long rx_time; /* system time when received */
- struct ath_recv_status rx_status; /* cached rx status */
-};
-
-/* Per-TID aggregate receiver state for a node */
-struct ath_arx_tid {
- struct ath_node *an; /* parent ath node */
- struct ath_rxbuf *rxbuf; /* re-ordering buffer */
- struct timer_list timer;
- spinlock_t tidlock; /* lock to protect this TID structure */
- int baw_head; /* seq_next at head */
- int baw_tail; /* tail of block-ack window */
- int seq_reset; /* need to reset start sequence */
- int addba_exchangecomplete;
- u16 seq_next; /* next expected sequence */
- u16 baw_size; /* block-ack window size */
-};
-
-/* Per-node receiver aggregate state */
-struct ath_arx {
- struct ath_arx_tid tid[WME_NUM_TID];
-};
-
-int ath_startrecv(struct ath_softc *sc);
-bool ath_stoprecv(struct ath_softc *sc);
-void ath_flushrecv(struct ath_softc *sc);
-u32 ath_calcrxfilter(struct ath_softc *sc);
-void ath_rx_node_init(struct ath_softc *sc, struct ath_node *an);
-void ath_rx_node_free(struct ath_softc *sc, struct ath_node *an);
-void ath_rx_node_cleanup(struct ath_softc *sc, struct ath_node *an);
-void ath_handle_rx_intr(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);
-int ath_rx_input(struct ath_softc *sc,
- struct ath_node *node,
- int is_ampdu,
- struct sk_buff *skb,
- struct ath_recv_status *rx_status,
- enum ATH_RX_TYPE *status);
-int ath__rx_indicate(struct ath_softc *sc,
- struct sk_buff *skb,
- struct ath_recv_status *status,
- u16 keyix);
-int ath_rx_subframe(struct ath_node *an, struct sk_buff *skb,
- struct ath_recv_status *status);
-
-/******/
-/* TX */
-/******/
-
-#define ATH_FRAG_PER_MSDU 1
-#define ATH_TXBUF (512/ATH_FRAG_PER_MSDU)
-/* max number of transmit attempts (tries) */
-#define ATH_TXMAXTRY 13
-/* max number of 11n transmit attempts (tries) */
-#define ATH_11N_TXMAXTRY 10
-/* max number of tries for management and control frames */
-#define ATH_MGT_TXMAXTRY 4
-#define WME_BA_BMP_SIZE 64
-#define WME_MAX_BA WME_BA_BMP_SIZE
-#define ATH_TID_MAX_BUFS (2 * WME_MAX_BA)
-#define TID_TO_WME_AC(_tid) \
- ((((_tid) == 0) || ((_tid) == 3)) ? WME_AC_BE : \
- (((_tid) == 1) || ((_tid) == 2)) ? WME_AC_BK : \
- (((_tid) == 4) || ((_tid) == 5)) ? WME_AC_VI : \
- WME_AC_VO)
-
-
-/* Wireless Multimedia Extension Defines */
-#define WME_AC_BE 0 /* best effort */
-#define WME_AC_BK 1 /* background */
-#define WME_AC_VI 2 /* video */
-#define WME_AC_VO 3 /* voice */
-#define WME_NUM_AC 4
-
-enum ATH_SM_PWRSAV{
- ATH_SM_ENABLE,
- ATH_SM_PWRSAV_STATIC,
- ATH_SM_PWRSAV_DYNAMIC,
-};
-
-/*
- * Data transmit queue state. One of these exists for each
- * hardware transmit queue. Packets sent to us from above
- * are assigned to queues based on their priority. Not all
- * devices support a complete set of hardware transmit queues.
- * For those devices the array sc_ac2q will map multiple
- * priorities to fewer hardware queues (typically all to one
- * hardware queue).
- */
-struct ath_txq {
- u32 axq_qnum; /* hardware q number */
- u32 *axq_link; /* link ptr in last TX desc */
- struct list_head axq_q; /* transmit queue */
- spinlock_t axq_lock; /* lock on q and link */
- unsigned long axq_lockflags; /* intr state when must cli */
- u32 axq_depth; /* queue depth */
- u8 axq_aggr_depth; /* aggregates queued */
- u32 axq_totalqueued;/* total ever queued */
- u32 axq_intrcnt; /* count to determine
- if descriptor should generate
- int on this txq. */
- bool stopped; /* Is mac80211 queue
- stopped ? */
- /* State for patching up CTS when bursting */
- struct ath_buf *axq_linkbuf; /* virtual addr of last buffer*/
- struct ath_desc *axq_lastdsWithCTS; /* first desc of the
- last descriptor that contains CTS */
- struct ath_desc *axq_gatingds; /* final desc of the gating desc
- * that determines whether lastdsWithCTS has
- * been DMA'ed or not */
- struct list_head axq_acq;
-};
-
-/* per TID aggregate tx state for a destination */
-struct ath_atx_tid {
- struct list_head list; /* round-robin tid entry */
- struct list_head buf_q; /* pending buffers */
- struct ath_node *an; /* parent node structure */
- struct ath_atx_ac *ac; /* parent access category */
- struct ath_buf *tx_buf[ATH_TID_MAX_BUFS];/* active tx frames */
- u16 seq_start; /* starting seq of BA window */
- u16 seq_next; /* next seq to be used */
- u16 baw_size; /* BA window size */
- int tidno; /* TID number */
- int baw_head; /* first un-acked tx buffer */
- int baw_tail; /* next unused tx buffer slot */
- int sched; /* TID is scheduled */
- int paused; /* TID is paused */
- int cleanup_inprogress; /* aggr of this TID is
- being teared down */
- u32 addba_exchangecomplete:1; /* ADDBA state */
- int32_t addba_exchangeinprogress;
- int addba_exchangeattempts;
-};
-
-/* per access-category aggregate tx state for a destination */
-struct ath_atx_ac {
- int sched; /* dest-ac is scheduled */
- int qnum; /* H/W queue number associated
- with this AC */
- struct list_head list; /* round-robin txq entry */
- struct list_head tid_q; /* queue of TIDs with buffers */
-};
-
-/* per dest tx state */
-struct ath_atx {
- struct ath_atx_tid tid[WME_NUM_TID];
- struct ath_atx_ac ac[WME_NUM_AC];
-};
-
-/* per-frame tx control block */
-struct ath_tx_control {
- struct ath_node *an; /* destination to sent to */
- int if_id; /* only valid for cab traffic */
- int qnum; /* h/w queue number */
- u32 ht:1; /* if it can be transmitted using HT */
- u32 ps:1; /* if one or more stations are in PS mode */
- u32 use_minrate:1; /* if this frame should transmitted using
- minimum rate */
- enum ath9k_pkt_type atype; /* Atheros packet type */
- enum ath9k_key_type keytype; /* key type */
- u32 flags; /* HAL flags */
- u16 seqno; /* sequence number */
- u16 tidno; /* tid number */
- u16 txpower; /* transmit power */
- u16 frmlen; /* frame length */
- u32 keyix; /* key index */
- int min_rate; /* minimum rate */
- int mcast_rate; /* multicast rate */
- u16 nextfraglen; /* next fragment length */
- /* below is set only by ath_dev */
- struct ath_softc *dev; /* device handle */
- dma_addr_t dmacontext;
-};
-
-/* per frame tx status block */
-struct ath_xmit_status {
- int retries; /* number of retries to successufully
- transmit this frame */
- int flags; /* status of transmit */
-#define ATH_TX_ERROR 0x01
-#define ATH_TX_XRETRY 0x02
-#define ATH_TX_BAR 0x04
-};
-
-struct ath_tx_stat {
- int rssi; /* RSSI (noise floor ajusted) */
- int rssictl[ATH_MAX_ANTENNA]; /* RSSI (noise floor ajusted) */
- int rssiextn[ATH_MAX_ANTENNA]; /* RSSI (noise floor ajusted) */
- int rateieee; /* data rate xmitted (IEEE rate code) */
- int rateKbps; /* data rate xmitted (Kbps) */
- int ratecode; /* phy rate code */
- int flags; /* validity flags */
-/* if any of ctl,extn chain rssis are valid */
-#define ATH_TX_CHAIN_RSSI_VALID 0x01
-/* if extn chain rssis are valid */
-#define ATH_TX_RSSI_EXTN_VALID 0x02
- u32 airtime; /* time on air per final tx rate */
-};
-
-struct ath_txq *ath_txq_setup(struct ath_softc *sc, int qtype, int subtype);
-void ath_tx_cleanupq(struct ath_softc *sc, struct ath_txq *txq);
-int ath_tx_setup(struct ath_softc *sc, int haltype);
-void ath_draintxq(struct ath_softc *sc, bool retry_tx);
-void ath_tx_draintxq(struct ath_softc *sc,
- struct ath_txq *txq, bool retry_tx);
-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, bool bh_flag);
-void ath_tx_node_free(struct ath_softc *sc, struct ath_node *an);
-void ath_txq_schedule(struct ath_softc *sc, struct ath_txq *txq);
-int ath_tx_init(struct ath_softc *sc, int nbufs);
-int ath_tx_cleanup(struct ath_softc *sc);
-int ath_tx_get_qnum(struct ath_softc *sc, int qtype, int haltype);
-int ath_txq_update(struct ath_softc *sc, int qnum, struct ath9k_txq_info *q);
-int ath_tx_start(struct ath_softc *sc, struct sk_buff *skb);
-void ath_tx_tasklet(struct ath_softc *sc);
-u32 ath_txq_depth(struct ath_softc *sc, int qnum);
-u32 ath_txq_aggr_depth(struct ath_softc *sc, int qnum);
-void ath_notify_txq_status(struct ath_softc *sc, u16 queue_depth);
-void ath_tx_complete(struct ath_softc *sc, struct sk_buff *skb,
- struct ath_xmit_status *tx_status, struct ath_node *an);
-
-/**********************/
-/* Node / Aggregation */
-/**********************/
-
-/* indicates the node is clened up */
-#define ATH_NODE_CLEAN 0x1
-/* indicates the node is 80211 power save */
-#define ATH_NODE_PWRSAVE 0x2
-
-#define ADDBA_TIMEOUT 200 /* 200 milliseconds */
-#define ADDBA_EXCHANGE_ATTEMPTS 10
-#define ATH_AGGR_DELIM_SZ 4 /* delimiter size */
-#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
-#define ATH_AMPDU_SUBFRAME_DEFAULT 32
-#define IEEE80211_SEQ_SEQ_SHIFT 4
-#define IEEE80211_SEQ_MAX 4096
-#define IEEE80211_MIN_AMPDU_BUF 0x8
-
-/* 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))
-
-/* returns delimiter padding required given the packet length */
-#define ATH_AGGR_GET_NDELIM(_len) \
- (((((_len) + ATH_AGGR_DELIM_SZ) < ATH_AGGR_MINPLEN) ? \
- (ATH_AGGR_MINPLEN - (_len) - ATH_AGGR_DELIM_SZ) : 0) >> 2)
-
-#define BAW_WITHIN(_start, _bawsz, _seqno) \
- ((((_seqno) - (_start)) & 4095) < (_bawsz))
-
-#define ATH_DS_BA_SEQ(_ds) ((_ds)->ds_us.tx.ts_seqnum)
-#define ATH_DS_BA_BITMAP(_ds) (&(_ds)->ds_us.tx.ba_low)
-#define ATH_DS_TX_BA(_ds) ((_ds)->ds_us.tx.ts_flags & ATH9K_TX_BA)
-#define ATH_AN_2_TID(_an, _tidno) (&(_an)->an_aggr.tx.tid[(_tidno)])
-
-enum ATH_AGGR_STATUS {
- ATH_AGGR_DONE,
- ATH_AGGR_BAW_CLOSED,
- ATH_AGGR_LIMITED,
- ATH_AGGR_SHORTPKT,
- ATH_AGGR_8K_LIMITED,
-};
-
-enum ATH_AGGR_CHECK {
- AGGR_NOT_REQUIRED,
- AGGR_REQUIRED,
- AGGR_CLEANUP_PROGRESS,
- AGGR_EXCHANGE_PROGRESS,
- AGGR_EXCHANGE_DONE
-};
-
-struct aggr_rifs_param {
- int param_max_frames;
- int param_max_len;
- int param_rl;
- int param_al;
- struct ath_rc_series *param_rcs;
-};
-
-/* Per-node aggregation state */
-struct ath_node_aggr {
- struct ath_atx tx; /* node transmit state */
- struct ath_arx rx; /* node receive state */
-};
-
-/* driver-specific node state */
-struct ath_node {
- struct list_head list;
- struct ath_softc *an_sc; /* back pointer */
- atomic_t an_refcnt;
- struct ath_chainmask_sel an_chainmask_sel;
- struct ath_node_aggr an_aggr; /* A-MPDU aggregation state */
- u8 an_smmode; /* SM Power save mode */
- u8 an_flags;
- u8 an_addr[ETH_ALEN];
-};
-
-void ath_tx_resume_tid(struct ath_softc *sc,
- struct ath_atx_tid *tid);
-enum ATH_AGGR_CHECK ath_tx_aggr_check(struct ath_softc *sc,
- struct ath_node *an, u8 tidno);
-void ath_tx_aggr_teardown(struct ath_softc *sc,
- struct ath_node *an, u8 tidno);
-void ath_rx_aggr_teardown(struct ath_softc *sc,
- struct ath_node *an, u8 tidno);
-int ath_rx_aggr_start(struct ath_softc *sc,
- const u8 *addr,
- u16 tid,
- u16 *ssn);
-int ath_rx_aggr_stop(struct ath_softc *sc,
- const u8 *addr,
- u16 tid);
-int ath_tx_aggr_start(struct ath_softc *sc,
- const u8 *addr,
- u16 tid,
- u16 *ssn);
-int ath_tx_aggr_stop(struct ath_softc *sc,
- const u8 *addr,
- u16 tid);
-void ath_newassoc(struct ath_softc *sc,
- struct ath_node *node, int isnew, int isuapsd);
-struct ath_node *ath_node_attach(struct ath_softc *sc,
- u8 addr[ETH_ALEN], int if_id);
-void ath_node_detach(struct ath_softc *sc, struct ath_node *an, bool bh_flag);
-struct ath_node *ath_node_get(struct ath_softc *sc, u8 addr[ETH_ALEN]);
-void ath_node_put(struct ath_softc *sc, struct ath_node *an, bool bh_flag);
-struct ath_node *ath_node_find(struct ath_softc *sc, u8 *addr);
-
-/*******************/
-/* 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 * ATH_BCBUF)
-#define ATH_BCBUF 4 /* number of beacon buffers */
-#define ATH_DEFAULT_BINTVAL 100 /* default beacon interval in TU */
-#define ATH_DEFAULT_BMISS_LIMIT 10
-#define ATH_BEACON_AIFS_DEFAULT 0 /* Default aifs for ap beacon q */
-#define ATH_BEACON_CWMIN_DEFAULT 0 /* Default cwmin for ap beacon q */
-#define ATH_BEACON_CWMAX_DEFAULT 0 /* Default cwmax for ap beacon q */
-#define IEEE80211_MS_TO_TU(x) (((x) * 1000) / 1024)
-
-/* beacon configuration */
-struct ath_beacon_config {
- u16 beacon_interval;
- u16 listen_interval;
- u16 dtim_period;
- u16 bmiss_timeout;
- u8 dtim_count;
- u8 tim_offset;
- union {
- u64 last_tsf;
- u8 last_tstamp[8];
- } u; /* last received beacon/probe response timestamp of this BSS. */
-};
-
-/* offsets in a beacon frame for
- * quick acess of beacon content by low-level driver */
-struct ath_beacon_offset {
- u8 *bo_tim; /* start of atim/dtim */
-};
-
-void ath9k_beacon_tasklet(unsigned long data);
-void ath_beacon_config(struct ath_softc *sc, int if_id);
-int ath_beaconq_setup(struct ath_hal *ah);
-int ath_beacon_alloc(struct ath_softc *sc, int if_id);
-void ath_bstuck_process(struct ath_softc *sc);
-void ath_beacon_tasklet(struct ath_softc *sc, int *needmark);
-void ath_beacon_free(struct ath_softc *sc);
-void ath_beacon_return(struct ath_softc *sc, struct ath_vap *avp);
-void ath_beacon_sync(struct ath_softc *sc, int if_id);
-void ath_update_beacon_info(struct ath_softc *sc, int avgbrssi);
-void ath_get_beaconconfig(struct ath_softc *sc,
- int if_id,
- struct ath_beacon_config *conf);
-int ath_update_beacon(struct ath_softc *sc,
- int if_id,
- struct ath_beacon_offset *bo,
- struct sk_buff *skb,
- int mcast);
-/********/
-/* VAPs */
-/********/
-
-#define ATH_IF_HW_OFF 0x0001 /* hardware state needs to turn off */
-#define ATH_IF_HW_ON 0x0002 /* hardware state needs to turn on */
-/* STA only: the associated AP is HT capable */
-#define ATH_IF_HT 0x0004
-/* AP/IBSS only: current BSS has privacy on */
-#define ATH_IF_PRIVACY 0x0008
-#define ATH_IF_BEACON_ENABLE 0x0010 /* AP/IBSS only: enable beacon */
-#define ATH_IF_BEACON_SYNC 0x0020 /* IBSS only: need to sync beacon */
-
-/*
- * Define the scheme that we select MAC address for multiple
- * BSS on the same radio. The very first VAP will just use the MAC
- * address from the EEPROM. For the next 3 VAPs, we set the
- * U/L bit (bit 1) in MAC address, and use the next two bits as the
- * index of the VAP.
- */
-
-#define ATH_SET_VAP_BSSID_MASK(bssid_mask) \
- ((bssid_mask)[0] &= ~(((ATH_BCBUF-1)<<2)|0x02))
-
-/* VAP configuration (from protocol layer) */
-struct ath_vap_config {
- u32 av_fixed_rateset;
- u32 av_fixed_retryset;
-};
-
-/* driver-specific vap state */
-struct ath_vap {
- struct ieee80211_vif *av_if_data; /* interface(vap)
- instance from 802.11 protocal layer */
- enum ath9k_opmode av_opmode; /* VAP operational mode */
- struct ath_buf *av_bcbuf; /* beacon buffer */
- struct ath_beacon_offset av_boff; /* dynamic update state */
- struct ath_tx_control av_btxctl; /* tx control information
- for beacon */
- int av_bslot; /* beacon slot index */
- struct ath_txq av_mcastq; /* multicast
- transmit queue */
- struct ath_vap_config av_config; /* vap configuration
- parameters from 802.11 protocol layer*/
- struct ath_rate_node *rc_node;
-};
-
-int ath_vap_attach(struct ath_softc *sc,
- int if_id,
- struct ieee80211_vif *if_data,
- enum ath9k_opmode opmode);
-int ath_vap_detach(struct ath_softc *sc, int if_id);
-int ath_vap_config(struct ath_softc *sc,
- int if_id, struct ath_vap_config *if_config);
-int ath_vap_listen(struct ath_softc *sc, int if_id);
-
-/*********************/
-/* Antenna diversity */
-/*********************/
-
-#define ATH_ANT_DIV_MAX_CFG 2
-#define ATH_ANT_DIV_MIN_IDLE_US 1000000 /* us */
-#define ATH_ANT_DIV_MIN_SCAN_US 50000 /* us */
-
-enum ATH_ANT_DIV_STATE{
- ATH_ANT_DIV_IDLE,
- ATH_ANT_DIV_SCAN, /* evaluating antenna */
-};
-
-struct ath_antdiv {
- struct ath_softc *antdiv_sc;
- u8 antdiv_start;
- enum ATH_ANT_DIV_STATE antdiv_state;
- u8 antdiv_num_antcfg;
- u8 antdiv_curcfg;
- u8 antdiv_bestcfg;
- int32_t antdivf_rssitrig;
- int32_t antdiv_lastbrssi[ATH_ANT_DIV_MAX_CFG];
- u64 antdiv_lastbtsf[ATH_ANT_DIV_MAX_CFG];
- u64 antdiv_laststatetsf;
- u8 antdiv_bssid[ETH_ALEN];
-};
-
-void ath_slow_ant_div_init(struct ath_antdiv *antdiv,
- struct ath_softc *sc, int32_t rssitrig);
-void ath_slow_ant_div_start(struct ath_antdiv *antdiv,
- u8 num_antcfg,
- const u8 *bssid);
-void ath_slow_ant_div_stop(struct ath_antdiv *antdiv);
-void ath_slow_ant_div(struct ath_antdiv *antdiv,
- struct ieee80211_hdr *wh,
- struct ath_rx_status *rx_stats);
-void ath_setdefantenna(void *sc, u32 antenna);
-
-/********************/
-/* Main driver core */
-/********************/
-
-/*
- * Default cache line size, in bytes.
- * Used when PCI device not fully initialized by bootrom/BIOS
-*/
-#define DEFAULT_CACHELINE 32
-#define ATH_DEFAULT_NOISE_FLOOR -95
-#define ATH_REGCLASSIDS_MAX 10
-#define ATH_CABQ_READY_TIME 80 /* % of beacon interval */
-#define ATH_PREAMBLE_SHORT (1<<0)
-#define ATH_PROTECT_ENABLE (1<<1)
-#define ATH_MAX_SW_RETRIES 10
-/* Num farmes difference in tx to flip default recv */
-#define ATH_ANTENNA_DIFF 2
-#define ATH_CHAN_MAX 255
-#define IEEE80211_WEP_NKID 4 /* number of key ids */
-#define IEEE80211_RATE_VAL 0x7f
-/*
- * The key cache is used for h/w cipher state and also for
- * tracking station state such as the current tx antenna.
- * We also setup a mapping table between key cache slot indices
- * and station state to short-circuit node lookups on rx.
- * Different parts have different size key caches. We handle
- * up to ATH_KEYMAX entries (could dynamically allocate state).
- */
-#define ATH_KEYMAX 128 /* max key cache size we handle */
-
-#define RESET_RETRY_TXQ 0x00000001
-#define ATH_IF_ID_ANY 0xff
-
-#define ATH_TXPOWER_MAX 100 /* .5 dBm units */
-
-#define RSSI_LPF_THRESHOLD -20
-#define ATH_RSSI_EP_MULTIPLIER (1<<7) /* pow2 to optimize out * and / */
-#define ATH_RATE_DUMMY_MARKER 0
-#define ATH_RSSI_LPF_LEN 10
-#define ATH_RSSI_DUMMY_MARKER 0x127
-
-#define ATH_EP_MUL(x, mul) ((x) * (mul))
-#define ATH_EP_RND(x, mul) \
- ((((x)%(mul)) >= ((mul)/2)) ? ((x) + ((mul) - 1)) / (mul) : (x)/(mul))
-#define ATH_RSSI_OUT(x) \
- (((x) != ATH_RSSI_DUMMY_MARKER) ? \
- (ATH_EP_RND((x), ATH_RSSI_EP_MULTIPLIER)) : ATH_RSSI_DUMMY_MARKER)
-#define ATH_RSSI_IN(x) \
- (ATH_EP_MUL((x), ATH_RSSI_EP_MULTIPLIER))
-#define ATH_LPF_RSSI(x, y, len) \
- ((x != ATH_RSSI_DUMMY_MARKER) ? \
- (((x) * ((len) - 1) + (y)) / (len)) : (y))
-#define ATH_RSSI_LPF(x, y) do { \
- if ((y) >= RSSI_LPF_THRESHOLD) \
- x = ATH_LPF_RSSI((x), \
- ATH_RSSI_IN((y)), ATH_RSSI_LPF_LEN); \
- } while (0)
-
-
-enum PROT_MODE {
- PROT_M_NONE = 0,
- PROT_M_RTSCTS,
- PROT_M_CTSONLY
-};
-
-enum RATE_TYPE {
- NORMAL_RATE = 0,
- HALF_RATE,
- QUARTER_RATE
-};
-
-struct ath_ht_info {
- enum ath9k_ht_macmode tx_chan_width;
- u16 maxampdu;
- u8 mpdudensity;
- u8 ext_chan_offset;
-};
-
-struct ath_softc {
- struct ieee80211_hw *hw; /* mac80211 instance */
- struct pci_dev *pdev; /* Bus handle */
- void __iomem *mem; /* address of the device */
- struct tasklet_struct intr_tq; /* General tasklet */
- struct tasklet_struct bcon_tasklet; /* Beacon tasklet */
- struct ath_config sc_config; /* per-instance load-time
- parameters */
- int sc_debug; /* Debug masks */
- struct ath_hal *sc_ah; /* HAL Instance */
- struct ath_rate_softc *sc_rc; /* tx rate control support */
- u32 sc_intrstatus; /* HAL_STATUS */
- enum ath9k_opmode sc_opmode; /* current operating mode */
-
- /* Properties, Config */
- u8 sc_invalid; /* being detached */
- u8 sc_beacons; /* beacons running */
- u8 sc_scanning; /* scanning active */
- u8 sc_txaggr; /* enable 11n tx aggregation */
- u8 sc_rxaggr; /* enable 11n rx aggregation */
- u8 sc_update_chainmask; /* change chain mask */
- u8 sc_full_reset; /* force full reset */
- enum wireless_mode sc_curmode; /* current phy mode */
- u16 sc_curtxpow; /* current tx power limit */
- u16 sc_curaid; /* current association id */
- u8 sc_curbssid[ETH_ALEN];
- u8 sc_myaddr[ETH_ALEN];
- enum PROT_MODE sc_protmode; /* protection mode */
- u8 sc_mcastantenna;/* Multicast antenna number */
- u8 sc_txantenna; /* data tx antenna
- (fixed or auto) */
- u8 sc_nbcnvaps; /* # of vaps sending beacons */
- u16 sc_nvaps; /* # of active virtual ap's */
- struct ath_vap *sc_vaps[ATH_BCBUF]; /* interface id
- to avp map */
- enum ath9k_int sc_imask; /* interrupt mask copy */
- u8 sc_bssidmask[ETH_ALEN];
- u8 sc_defant; /* current default antenna */
- u8 sc_rxotherant; /* rx's on non-default antenna*/
- u16 sc_cachelsz; /* cache line size */
- int sc_slotupdate; /* slot to next advance fsm */
- int sc_slottime; /* slot time */
- u8 sc_noreset;
- int sc_bslot[ATH_BCBUF];/* beacon xmit slots */
- struct ath9k_node_stats sc_halstats; /* station-mode rssi stats */
- struct list_head node_list;
- struct ath_ht_info sc_ht_info;
- int16_t sc_noise_floor; /* signal noise floor in dBm */
- enum ath9k_ht_extprotspacing sc_ht_extprotspacing;
- u8 sc_tx_chainmask;
- u8 sc_rx_chainmask;
- u8 sc_rxchaindetect_ref;
- u8 sc_rxchaindetect_thresh5GHz;
- u8 sc_rxchaindetect_thresh2GHz;
- u8 sc_rxchaindetect_delta5GHz;
- u8 sc_rxchaindetect_delta2GHz;
- u32 sc_rtsaggrlimit; /* Chipset specific
- aggr limit */
- u32 sc_flags;
-#ifdef CONFIG_SLOW_ANT_DIV
- /* Slow antenna diversity */
- struct ath_antdiv sc_antdiv;
-#endif
- enum {
- OK, /* no change needed */
- UPDATE, /* update pending */
- COMMIT /* beacon sent, commit change */
- } sc_updateslot; /* slot time update fsm */
-
- /* Crypto */
- u32 sc_keymax; /* size of key cache */
- DECLARE_BITMAP (sc_keymap, ATH_KEYMAX);/* key use bit map */
- u8 sc_splitmic; /* split TKIP MIC keys */
- int sc_keytype; /* type of the key being used */
-
- /* RX */
- struct list_head sc_rxbuf; /* receive buffer */
- struct ath_descdma sc_rxdma; /* RX descriptors */
- int sc_rxbufsize; /* rx size based on mtu */
- u32 *sc_rxlink; /* link ptr in last RX desc */
- u32 sc_rxflush; /* rx flush in progress */
- u64 sc_lastrx; /* tsf of last rx'd frame */
-
- /* TX */
- struct list_head sc_txbuf; /* transmit buffer */
- struct ath_txq sc_txq[ATH9K_NUM_TX_QUEUES];
- struct ath_descdma sc_txdma; /* TX descriptors */
- u32 sc_txqsetup; /* h/w queues setup */
- u32 sc_txintrperiod;/* tx interrupt batching */
- int sc_haltype2q[ATH9K_WME_AC_VO+1]; /* HAL WME
- AC -> h/w qnum */
- u32 sc_ant_tx[8]; /* recent tx frames/antenna */
-
- /* Beacon */
- struct ath9k_txq_info sc_beacon_qi; /* adhoc only: beacon
- queue parameters */
- struct ath_descdma sc_bdma; /* beacon descriptors */
- struct ath_txq *sc_cabq; /* tx q for cab frames */
- struct list_head sc_bbuf; /* beacon buffers */
- u32 sc_bhalq; /* HAL q for outgoing beacons */
- u32 sc_bmisscount; /* missed beacon transmits */
- u32 ast_be_xmit; /* beacons transmitted */
-
- /* Rate */
- struct ieee80211_rate rates[IEEE80211_NUM_BANDS][ATH_RATE_MAX];
- const struct ath9k_rate_table *sc_rates[WIRELESS_MODE_MAX];
- const struct ath9k_rate_table *sc_currates; /* current rate table */
- u8 sc_rixmap[256]; /* IEEE to h/w
- rate table ix */
- u8 sc_minrateix; /* min h/w rate index */
- u8 sc_protrix; /* protection rate index */
- struct {
- u32 rateKbps; /* transfer rate in kbs */
- u8 ieeerate; /* IEEE rate */
- } sc_hwmap[256]; /* h/w rate ix mappings */
-
- /* Channel, Band */
- struct ieee80211_channel channels[IEEE80211_NUM_BANDS][ATH_CHAN_MAX];
- struct ieee80211_supported_band sbands[IEEE80211_NUM_BANDS];
- struct ath9k_channel sc_curchan; /* current h/w channel */
-
- /* Locks */
- spinlock_t sc_rxflushlock; /* lock of RX flush */
- spinlock_t sc_rxbuflock; /* rxbuf lock */
- spinlock_t sc_txbuflock; /* txbuf lock */
- spinlock_t sc_resetlock;
- spinlock_t node_lock;
-};
-
-int ath_init(u16 devid, struct ath_softc *sc);
-void ath_deinit(struct ath_softc *sc);
-int ath_open(struct ath_softc *sc, struct ath9k_channel *initial_chan);
-int ath_suspend(struct ath_softc *sc);
-irqreturn_t ath_isr(int irq, void *dev);
-int ath_reset(struct ath_softc *sc);
-void ath_scan_start(struct ath_softc *sc);
-void ath_scan_end(struct ath_softc *sc);
-int ath_set_channel(struct ath_softc *sc, struct ath9k_channel *hchan);
-void ath_setup_rate(struct ath_softc *sc,
- enum wireless_mode wMode,
- enum RATE_TYPE type,
- const struct ath9k_rate_table *rt);
-
-/*********************/
-/* Utility Functions */
-/*********************/
-
-void ath_key_reset(struct ath_softc *sc, u16 keyix, int freeslot);
-int ath_keyset(struct ath_softc *sc,
- u16 keyix,
- struct ath9k_keyval *hk,
- const u8 mac[ETH_ALEN]);
-int ath_get_hal_qnum(u16 queue, struct ath_softc *sc);
-int ath_get_mac80211_qnum(u32 queue, struct ath_softc *sc);
-void ath_setslottime(struct ath_softc *sc);
-void ath_update_txpow(struct ath_softc *sc);
-int ath_cabq_update(struct ath_softc *);
-void ath_get_currentCountry(struct ath_softc *sc,
- struct ath9k_country_entry *ctry);
-u64 ath_extend_tsf(struct ath_softc *sc, u32 rstamp);
-void ath_internal_reset(struct ath_softc *sc);
-u32 ath_chan2flags(struct ieee80211_channel *chan, struct ath_softc *sc);
-dma_addr_t ath_skb_map_single(struct ath_softc *sc,
- struct sk_buff *skb,
- int direction,
- dma_addr_t *pa);
-void ath_skb_unmap_single(struct ath_softc *sc,
- struct sk_buff *skb,
- int direction,
- dma_addr_t *pa);
-void ath_mcast_merge(struct ath_softc *sc, u32 mfilt[2]);
-enum ath9k_ht_macmode ath_cwm_macmode(struct ath_softc *sc);
-
-#endif /* CORE_H */
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