ath9k: Add pktlog support

chromeos/compat-wireless/drivers/net/wireless/ath/ath9k/pktlog.h

+#ifndef PKTLOG_H
+#define PKTLOG_H
+
+#ifdef CONFIG_ATH9K_PKTLOG
+#define CUR_PKTLOG_VER          10010  /* Packet log version */
+#define PKTLOG_MAGIC_NUM        7735225
+#define ATH_PKTLOG_TX           0x000000001
+#define ATH_PKTLOG_RX           0x000000002
+#define ATH_PKTLOG_RCFIND       0x000000004
+#define ATH_PKTLOG_RCUPDATE     0x000000008
+
+#define ATH_DEBUGFS_PKTLOG_SIZE_DEFAULT (1024 * 1024)
+#define ATH_PKTLOG_FILTER_DEFAULT (ATH_PKTLOG_TX | ATH_PKTLOG_RX |      \
+                ATH_PKTLOG_RCFIND | ATH_PKTLOG_RCUPDATE)
+
+#define PHFLAGS_MACVERSION_MASK 0x00ff0000
+#define PHFLAGS_MACVERSION_SFT  16
+#define PHFLAGS_MACREV_MASK 0xff0  /* MAC revision */
+#define PHFLAGS_MACREV_SFT  4
+
+struct ath_pktlog_hdr {
+        u32 flags;
+        u16 log_type; /* Type of log information foll this header */
+        int16_t size; /* Size of variable length log information in bytes */
+        u32 timestamp;
+}  __packed;
+
+/* Types of packet log events */
+#define PKTLOG_TYPE_TXCTL    0
+#define PKTLOG_TYPE_TXSTATUS 1
+#define PKTLOG_TYPE_RX       2
+#define PKTLOG_TYPE_RCFIND   3
+#define PKTLOG_TYPE_RCUPDATE 4
+
+#define PKTLOG_MAX_TXCTL_WORDS 12
+#define PKTLOG_MAX_TXSTATUS_WORDS 10
+#define PKTLOG_MAX_PROTO_WORDS  16
+
+struct ath_pktlog_txctl {
+        __le16 framectrl;       /* frame control field from header */
+        __le16 seqctrl;         /* frame control field from header */
+        u16 bssid_tail;      /* last two octets of bssid */
+        u16 sa_tail;         /* last two octets of SA */
+        u16 da_tail;         /* last two octets of DA */
+        u16 resvd;
+        u32 txdesc_ctl[PKTLOG_MAX_TXCTL_WORDS];     /* Tx descriptor words */
+        unsigned long proto_hdr;   /* protocol header (variable length!) */
+        int32_t misc[0]; /* Can be used for HT specific or other misc info */
+}  __packed;
+
+struct ath_pktlog_txstatus {
+        /* Tx descriptor status words */
+        u32 txdesc_status[PKTLOG_MAX_TXSTATUS_WORDS];
+        int32_t misc[0]; /* Can be used for HT specific or other misc info */
+}  __packed;
+
+#define PKTLOG_MAX_RXSTATUS_WORDS 11
+
+struct ath_pktlog_rx {
+        u16 framectrl;       /* frame control field from header */
+        u16 seqctrl;         /* sequence control field */
+        u16 bssid_tail;      /* last two octets of bssid */
+        u16 sa_tail;         /* last two octets of SA */
+        u16 da_tail;         /* last two octets of DA */
+        u16 resvd;
+        u32 rxdesc_status[PKTLOG_MAX_RXSTATUS_WORDS];  /* Rx descriptor words */
+        unsigned long proto_hdr;   /* protocol header (variable length!) */
+        int32_t misc[0];    /* Can be used for HT specific or other misc info */
+}  __packed;
+
+struct ath_pktlog_rcfind {
+        u8 rate;
+        u8 rateCode;
+        s8 rcRssiLast;
+        s8 rcRssiLastPrev;
+        s8 rcRssiLastPrev2;
+        s8 rssiReduce;
+        u8 rcProbeRate;
+        s8 isProbing;
+        s8 primeInUse;
+        s8 currentPrimeState;
+        u8 rcRateTableSize;
+        u8 rcRateMax;
+        u8 ac;
+        int32_t misc[0]; /* Can be used for HT specific or other misc info */
+}  __packed;
+
+struct ath_pktlog_rcupdate {
+        u8 txRate;
+        u8 rateCode;
+        s8 rssiAck;
+        u8 Xretries;
+        u8 retries;
+        s8 rcRssiLast;
+        s8 rcRssiLastLkup;
+        s8 rcRssiLastPrev;
+        s8 rcRssiLastPrev2;
+        u8 rcProbeRate;
+        u8 rcRateMax;
+        s8 useTurboPrime;
+        s8 currentBoostState;
+        u8 rcHwMaxRetryRate;
+        u8 ac;
+        u8 resvd[2];
+        s8 rcRssiThres[RATE_TABLE_SIZE];
+        u8 rcPer[RATE_TABLE_SIZE];
+        u8 resv2[RATE_TABLE_SIZE + 5];
+        int32_t misc[0]; /* Can be used for HT specific or other misc info */
+};
+
+#define TXCTL_OFFSET(ah)      (AR_SREV_9300_20_OR_LATER(ah) ? 11 : 2)
+#define TXCTL_NUMWORDS(ah)    (AR_SREV_5416_20_OR_LATER(ah) ? 12 : 8)
+#define TXSTATUS_OFFSET(ah)   (AR_SREV_9300_20_OR_LATER(ah) ? 2 : 14)
+#define TXSTATUS_NUMWORDS(ah) (AR_SREV_9300_20_OR_LATER(ah) ? 7 : 10)
+
+#define RXCTL_OFFSET(ah)      (AR_SREV_9300_20_OR_LATER(ah) ? 0 : 3)
+#define RXCTL_NUMWORDS(ah)    (AR_SREV_9300_20_OR_LATER(ah) ? 0 : 1)
+#define RXSTATUS_OFFSET(ah)   (AR_SREV_9300_20_OR_LATER(ah) ? 1 : 4)
+#define RXSTATUS_NUMWORDS(ah) (AR_SREV_9300_20_OR_LATER(ah) ? 11 : 9)
+
+struct ath_desc_info {
+        u8 txctl_offset;
+        u8 txctl_numwords;
+        u8 txstatus_offset;
+        u8 txstatus_numwords;
+        u8 rxctl_offset;
+        u8 rxctl_numwords;
+        u8 rxstatus_offset;
+        u8 rxstatus_numwords;
+};
+
+#define PKTLOG_MOV_RD_IDX(_rd_offset, _log_buf, _log_size)  \
+        do { \
+                if ((_rd_offset + sizeof(struct ath_pktlog_hdr) + \
+                    ((struct ath_pktlog_hdr *)((_log_buf)->log_data + \
+                            (_rd_offset)))->size) <= _log_size) { \
+                        _rd_offset = ((_rd_offset) + \
+                                        sizeof(struct ath_pktlog_hdr) + \
+                                        ((struct ath_pktlog_hdr *) \
+                                         ((_log_buf)->log_data + \
+                                          (_rd_offset)))->size); \
+                } else { \
+                        _rd_offset = ((struct ath_pktlog_hdr *) \
+                                        ((_log_buf)->log_data +  \
+                                         (_rd_offset)))->size;  \
+                } \
+                (_rd_offset) = (((_log_size) - (_rd_offset)) >= \
+                                sizeof(struct ath_pktlog_hdr)) ? \
+                _rd_offset : 0; \
+        } while (0);
+
+struct ath_pktlog_bufhdr {
+        u32 magic_num;  /* Used by post processing scripts */
+        u32 version;    /* Set to CUR_PKTLOG_VER */
+};
+
+struct ath_pktlog_buf {
+        struct ath_pktlog_bufhdr bufhdr;
+        int32_t rd_offset;
+        int32_t wr_offset;
+        char log_data[0];
+};
+
+struct ath_pktlog {
+        struct ath_pktlog_buf *pktlog_buf;
+        u32 pktlog_filter;
+        u32 pktlog_buf_size;           /* Size of buffer in bytes */
+        spinlock_t pktlog_lock;
+};
+
+struct ath_pktlog_debugfs {
+        struct dentry *debugfs_pktlog;
+        struct dentry *pktlog_enable;
+        struct dentry *pktlog_start;
+        struct dentry *pktlog_filter;
+        struct dentry *pktlog_size;
+        struct dentry *pktlog_dump;
+        struct ath_pktlog pktlog;
+};
+
+void ath_pktlog_txctl(struct ath_softc *sc, struct ath_buf *bf);
+void ath_pktlog_txstatus(struct ath_softc *sc, void *ds);
+void ath_pktlog_rx(struct ath_softc *sc, void *ds, struct sk_buff *skb);
+void ath9k_pktlog_rc(struct ath_softc *sc, struct ath_rate_priv *ath_rc_priv,
+                int8_t ratecode, u8 rate, int8_t is_probing, u16 ac);
+void ath9k_pktlog_rcupdate(struct ath_softc *sc,
+                           struct ath_rate_priv *ath_rc_priv, u8 tx_rate,
+                           u8 rate_code, u8 xretries, u8 retries, int8_t rssi,
+                           u16 ac);
+void ath9k_pktlog_txcomplete(struct ath_softc *sc ,struct list_head *bf_head,
+                             struct ath_buf *bf, struct ath_buf *bf_last);
+void ath9k_pktlog_txctrl(struct ath_softc *sc, struct list_head *bf_head,
+                         struct ath_buf *lastbf);
+int ath9k_init_pktlog(struct ath_softc *sc);
+void ath9k_deinit_pktlog(struct ath_softc *sc);
+#else /* CONFIG_ATH9K_PKTLOG */
+static inline void ath_pktlog_txstatus(struct ath_softc *sc, void *ds)
+{
+}
+
+static inline void ath_pktlog_rx(struct ath_softc *sc, void *ds,
+                                 struct sk_buff *skb)
+{
+}
+
+static inline void ath9k_pktlog_rc(struct ath_softc *sc,
+                                   struct ath_rate_priv *ath_rc_priv,
+                                   int8_t ratecode, u8 rate,
+                                   int8_t is_probing, u16 ac)
+{
+}
+
+static inline void ath9k_pktlog_rcupdate(struct ath_softc *sc,
+                                         struct ath_rate_priv *ath_rc_priv,
+                                         u8 tx_rate, u8 rate_code,
+                                         u8 xretries, u8 retries,
+                                         int8_t rssi, u16 ac)
+{
+}
+
+static inline void ath9k_pktlog_txcomplete(struct ath_softc *sc,
+                                           struct list_head *bf_head,
+                                           struct ath_buf *bf,
+                                           struct ath_buf *bf_last)
+{
+}
+
+static inline void ath9k_pktlog_txctrl(struct ath_softc *sc,
+                                       struct list_head *bf_head,
+                                       struct ath_buf *lastbf)
+{
+}
+static inline int ath9k_init_pktlog(struct ath_softc *sc)
+{
+        return 0;
+}
+static inline void ath9k_deinit_pktlog(struct ath_softc *sc)
+{
+}
+#endif /* CONFIG_ATH9K_PKTLOG */
+
+#endif