#define TSF_TO_TU(_h,_l) \
((((u32)(_h)) << 22) | (((u32)(_l)) >> 10))
-#define ATH_TXQ_SETUP(sc, i) ((sc)->sc_txqsetup & (1<<i))
+#define ATH_TXQ_SETUP(sc, i) ((sc)->tx.txqsetup & (1<<i))
static const u8 ath_bcast_mac[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
#ifdef CONFIG_ATH9K_DEBUG
+/**
+ * struct ath_interrupt_stats - Contains statistics about interrupts
+ * @total: Total no. of interrupts generated so far
+ * @rxok: RX with no errors
+ * @rxeol: RX with no more RXDESC available
+ * @rxorn: RX FIFO overrun
+ * @txok: TX completed at the requested rate
+ * @txurn: TX FIFO underrun
+ * @mib: MIB regs reaching its threshold
+ * @rxphyerr: RX with phy errors
+ * @rx_keycache_miss: RX with key cache misses
+ * @swba: Software Beacon Alert
+ * @bmiss: Beacon Miss
+ * @bnr: Beacon Not Ready
+ * @cst: Carrier Sense TImeout
+ * @gtt: Global TX Timeout
+ * @tim: RX beacon TIM occurrence
+ * @cabend: RX End of CAB traffic
+ * @dtimsync: DTIM sync lossage
+ * @dtim: RX Beacon with DTIM
+ */
+struct ath_interrupt_stats {
+ u32 total;
+ u32 rxok;
+ u32 rxeol;
+ u32 rxorn;
+ u32 txok;
+ u32 txeol;
+ u32 txurn;
+ u32 mib;
+ u32 rxphyerr;
+ u32 rx_keycache_miss;
+ u32 swba;
+ u32 bmiss;
+ u32 bnr;
+ u32 cst;
+ u32 gtt;
+ u32 tim;
+ u32 cabend;
+ u32 dtimsync;
+ u32 dtim;
+};
+
+struct ath_stats {
+ struct ath_interrupt_stats istats;
+};
+
struct ath9k_debug {
int debug_mask;
struct dentry *debugfs_root;
struct dentry *debugfs_phy;
struct dentry *debugfs_dma;
+ struct dentry *debugfs_interrupt;
+ struct ath_stats stats;
};
void DPRINTF(struct ath_softc *sc, int dbg_mask, const char *fmt, ...);
int ath9k_init_debug(struct ath_softc *sc);
void ath9k_exit_debug(struct ath_softc *sc);
+void ath_debug_stat_interrupt(struct ath_softc *sc, enum ath9k_int status);
#else
{
}
+static inline void ath_debug_stat_interrupt(struct ath_softc *sc,
+ enum ath9k_int status)
+{
+}
+
#endif /* CONFIG_ATH9K_DEBUG */
struct ath_config {
/* RX / TX */
/***********/
-#define ATH_MAX_ANTENNA 3
-#define ATH_RXBUF 512
-#define WME_NUM_TID 16
-
-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);
-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);
-
+#define ATH_MAX_ANTENNA 3
+#define ATH_RXBUF 512
+#define WME_NUM_TID 16
#define ATH_TXBUF 512
#define ATH_TXMAXTRY 13
#define ATH_11N_TXMAXTRY 10
#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)
-
#define WME_AC_BE 0
#define WME_AC_BK 1
#define WME_AC_VI 2
#define WME_AC_VO 3
#define WME_NUM_AC 4
+#define ADDBA_EXCHANGE_ATTEMPTS 10
+#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
+#define ATH_AMPDU_SUBFRAME_DEFAULT 32
+#define IEEE80211_SEQ_SEQ_SHIFT 4
+#define IEEE80211_SEQ_MAX 4096
+#define IEEE80211_MIN_AMPDU_BUF 0x8
+#define IEEE80211_HTCAP_MAXRXAMPDU_FACTOR 13
+
+/* 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)->tid[(_tidno)])
+
+enum ATH_AGGR_STATUS {
+ ATH_AGGR_DONE,
+ ATH_AGGR_BAW_CLOSED,
+ ATH_AGGR_LIMITED,
+ ATH_AGGR_SHORTPKT,
+ ATH_AGGR_8K_LIMITED,
+};
+
struct ath_txq {
u32 axq_qnum; /* hardware q number */
u32 *axq_link; /* link ptr in last TX desc */
u32 axq_depth; /* queue depth */
u8 axq_aggr_depth; /* aggregates queued */
u32 axq_totalqueued; /* total ever queued */
-
bool stopped; /* Is mac80211 queue stopped ? */
struct ath_buf *axq_linkbuf; /* virtual addr of last buffer*/
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_txq *txq;
int rateKbps;
int ratecode;
int 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 aggr_rifs_param {
+ int param_max_frames;
+ int param_max_len;
+ int param_rl;
+ int param_al;
+ struct ath_rc_series *param_rcs;
+};
+
+struct ath_node {
+ struct ath_softc *an_sc;
+ struct ath_atx_tid tid[WME_NUM_TID];
+ struct ath_atx_ac ac[WME_NUM_AC];
+ u16 maxampdu;
+ u8 mpdudensity;
+};
+
+struct ath_tx {
+ u16 seq_no;
+ u32 txqsetup;
+ int hwq_map[ATH9K_WME_AC_VO+1];
+ spinlock_t txbuflock;
+ struct list_head txbuf;
+ struct ath_txq txq[ATH9K_NUM_TX_QUEUES];
+ struct ath_descdma txdma;
+};
+
+struct ath_rx {
+ u8 defant;
+ u8 rxotherant;
+ u32 *rxlink;
+ int bufsize;
+ unsigned int rxfilter;
+ spinlock_t rxflushlock;
+ spinlock_t rxbuflock;
+ struct list_head rxbuf;
+ struct ath_descdma rxdma;
+};
+
+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);
+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);
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);
u32 ath_txq_depth(struct ath_softc *sc, int qnum);
u32 ath_txq_aggr_depth(struct ath_softc *sc, int qnum);
void ath_tx_cabq(struct ath_softc *sc, struct sk_buff *skb);
-
-/**********************/
-/* Node / Aggregation */
-/**********************/
-
-#define ADDBA_EXCHANGE_ATTEMPTS 10
-#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
-#define ATH_AMPDU_SUBFRAME_DEFAULT 32
-#define IEEE80211_SEQ_SEQ_SHIFT 4
-#define IEEE80211_SEQ_MAX 4096
-#define IEEE80211_MIN_AMPDU_BUF 0x8
-#define IEEE80211_HTCAP_MAXRXAMPDU_FACTOR 13
-
-/* 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,
-};
-
-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;
-};
-
-struct ath_node {
- struct ath_softc *an_sc;
- struct ath_node_aggr an_aggr;
- u16 maxampdu;
- u8 mpdudensity;
-};
-
void ath_tx_resume_tid(struct ath_softc *sc, struct ath_atx_tid *tid);
bool 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);
} u; /* last received beacon/probe response timestamp of this BSS. */
};
+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;
+ u32 ast_be_xmit;
+ u64 bc_tstamp;
+ int bslot[ATH_BCBUF];
+ int slottime;
+ int slotupdate;
+ struct ath9k_tx_queue_info beacon_qi;
+ struct ath_descdma bdma;
+ struct ath_txq *cabq;
+ struct list_head bbuf;
+};
+
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);
#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_CABQ_READY_TIME 80 /* % of beacon interval */
#define ATH_MAX_SW_RETRIES 10
#define ATH_CHAN_MAX 255
#define IEEE80211_WEP_NKID 4 /* number of key ids */
* 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 ATH_KEYMAX 128 /* max key cache size we handle */
#define ATH_IF_ID_ANY 0xff
#define ATH_TXPOWER_MAX 100 /* .5 dBm units */
struct pci_dev *pdev;
struct tasklet_struct intr_tq;
struct tasklet_struct bcon_tasklet;
- struct ath_config sc_config;
struct ath_hal *sc_ah;
void __iomem *mem;
+ spinlock_t sc_resetlock;
+ spinlock_t sc_serial_rw;
+ struct mutex mutex;
u8 sc_curbssid[ETH_ALEN];
u8 sc_myaddr[ETH_ALEN];
u8 sc_bssidmask[ETH_ALEN];
-
-#ifdef CONFIG_ATH9K_DEBUG
- struct ath9k_debug sc_debug;
-#endif
u32 sc_intrstatus;
u32 sc_flags; /* SC_OP_* */
- unsigned int rx_filter;
u16 sc_curtxpow;
u16 sc_curaid;
u16 sc_cachelsz;
- int sc_slotupdate; /* slot to next advance fsm */
- int sc_slottime;
- int sc_bslot[ATH_BCBUF];
+ u8 sc_nbcnvaps;
+ u16 sc_nvaps;
u8 sc_tx_chainmask;
u8 sc_rx_chainmask;
+ u32 sc_keymax;
+ DECLARE_BITMAP(sc_keymap, ATH_KEYMAX);
+ u8 sc_splitmic;
+ u8 sc_protrix;
enum ath9k_int sc_imask;
- enum wireless_mode sc_curmode;
enum PROT_MODE sc_protmode;
-
- u8 sc_nbcnvaps;
- u16 sc_nvaps;
- struct ieee80211_vif *sc_vaps[ATH_BCBUF];
-
- u8 sc_mcastantenna;
- u8 sc_defant;
- u8 sc_rxotherant;
-
- struct ath9k_node_stats sc_halstats;
enum ath9k_ht_extprotspacing sc_ht_extprotspacing;
enum ath9k_ht_macmode tx_chan_width;
-#ifdef CONFIG_SLOW_ANT_DIV
- 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;
- DECLARE_BITMAP(sc_keymap, ATH_KEYMAX);
- u8 sc_splitmic; /* split TKIP MIC keys */
-
- /* RX */
- struct list_head sc_rxbuf;
- struct ath_descdma sc_rxdma;
- int sc_rxbufsize;
- u32 *sc_rxlink;
-
- /* TX */
- struct list_head sc_txbuf;
- struct ath_txq sc_txq[ATH9K_NUM_TX_QUEUES];
- struct ath_descdma sc_txdma;
- u32 sc_txqsetup;
- int sc_haltype2q[ATH9K_WME_AC_VO+1];
- u16 seq_no; /* TX sequence number */
-
- /* Beacon */
- struct ath9k_tx_queue_info sc_beacon_qi;
- struct ath_descdma sc_bdma;
- struct ath_txq *sc_cabq;
- struct list_head sc_bbuf;
- u32 sc_bhalq;
- u32 sc_bmisscount;
- u32 ast_be_xmit;
- u64 bc_tstamp;
-
- /* Rate */
+ struct ath_config sc_config;
+ struct ath_rx rx;
+ struct ath_tx tx;
+ struct ath_beacon beacon;
+ struct ieee80211_vif *sc_vaps[ATH_BCBUF];
struct ieee80211_rate rates[IEEE80211_NUM_BANDS][ATH_RATE_MAX];
struct ath_rate_table *hw_rate_table[ATH9K_MODE_MAX];
- u8 sc_protrix;
-
- /* Channel, Band */
+ struct ath_rate_table *cur_rate_table;
struct ieee80211_channel channels[IEEE80211_NUM_BANDS][ATH_CHAN_MAX];
struct ieee80211_supported_band sbands[IEEE80211_NUM_BANDS];
-
- /* Locks */
- spinlock_t sc_rxflushlock;
- spinlock_t sc_rxbuflock;
- spinlock_t sc_txbuflock;
- spinlock_t sc_resetlock;
-
- /* LEDs */
struct ath_led radio_led;
struct ath_led assoc_led;
struct ath_led tx_led;
struct ath_led rx_led;
-
- /* Rfkill */
struct ath_rfkill rf_kill;
-
- /* ANI */
struct ath_ani sc_ani;
+ struct ath9k_node_stats sc_halstats;
+#ifdef CONFIG_ATH9K_DEBUG
+ struct ath9k_debug sc_debug;
+#endif
};
int ath_reset(struct ath_softc *sc, bool retry_tx);
int ath_get_mac80211_qnum(u32 queue, struct ath_softc *sc);
int ath_cabq_update(struct ath_softc *);
+/*
+ * Read and write, they both share the same lock. We do this to serialize
+ * reads and writes on Atheros 802.11n PCI devices only. This is required
+ * as the FIFO on these devices can only accept sanely 2 requests. After
+ * that the device goes bananas. Serializing the reads/writes prevents this
+ * from happening.
+ */
+
+static inline void ath9k_iowrite32(struct ath_hal *ah, u32 reg_offset, u32 val)
+{
+ if (ah->ah_config.serialize_regmode == SER_REG_MODE_ON) {
+ unsigned long flags;
+ spin_lock_irqsave(&ah->ah_sc->sc_serial_rw, flags);
+ iowrite32(val, ah->ah_sc->mem + reg_offset);
+ spin_unlock_irqrestore(&ah->ah_sc->sc_serial_rw, flags);
+ } else
+ iowrite32(val, ah->ah_sc->mem + reg_offset);
+}
+
+static inline unsigned int ath9k_ioread32(struct ath_hal *ah, u32 reg_offset)
+{
+ u32 val;
+ if (ah->ah_config.serialize_regmode == SER_REG_MODE_ON) {
+ unsigned long flags;
+ spin_lock_irqsave(&ah->ah_sc->sc_serial_rw, flags);
+ val = ioread32(ah->ah_sc->mem + reg_offset);
+ spin_unlock_irqrestore(&ah->ah_sc->sc_serial_rw, flags);
+ } else
+ val = ioread32(ah->ah_sc->mem + reg_offset);
+ return val;
+}
+
#endif /* CORE_H */
git.openpandora.org / pandora-kernel.git / blobdiff