/*      $OpenBSD: rt2661var.h,v 1.18 2013/12/06 21:03:03 deraadt Exp $  */

/*-
 * Copyright (c) 2006
 *      Damien Bergamini <damien.bergamini@free.fr>
 *
 * Permission to use, copy, modify, and 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.
 */

struct rt2661_rx_radiotap_header {
        struct ieee80211_radiotap_header wr_ihdr;
        uint64_t        wr_tsf;
        uint8_t         wr_flags;
        uint8_t         wr_rate;
        uint16_t        wr_chan_freq;
        uint16_t        wr_chan_flags;
        uint8_t         wr_antsignal;
} __packed;

#define RT2661_RX_RADIOTAP_PRESENT                                      \
        ((1 << IEEE80211_RADIOTAP_TSFT) |                               \
         (1 << IEEE80211_RADIOTAP_FLAGS) |                              \
         (1 << IEEE80211_RADIOTAP_RATE) |                               \
         (1 << IEEE80211_RADIOTAP_CHANNEL) |                            \
         (1 << IEEE80211_RADIOTAP_DB_ANTSIGNAL))

struct rt2661_tx_radiotap_header {
        struct ieee80211_radiotap_header wt_ihdr;
        uint8_t         wt_flags;
        uint8_t         wt_rate;
        uint16_t        wt_chan_freq;
        uint16_t        wt_chan_flags;
} __packed;

#define RT2661_TX_RADIOTAP_PRESENT                                      \
        ((1 << IEEE80211_RADIOTAP_FLAGS) |                              \
         (1 << IEEE80211_RADIOTAP_RATE) |                               \
         (1 << IEEE80211_RADIOTAP_CHANNEL))

struct rt2661_tx_data {
        bus_dmamap_t                    map;
        struct mbuf                     *m;
        struct ieee80211_node           *ni;
};

struct rt2661_tx_ring {
        bus_dmamap_t            map;
        bus_dma_segment_t       seg;
        bus_addr_t              physaddr;
        struct rt2661_tx_desc   *desc;
        struct rt2661_tx_data   *data;
        int                     count;
        int                     queued;
        int                     cur;
        int                     next;
        int                     stat;
};

struct rt2661_rx_data {
        bus_dmamap_t    map;
        struct mbuf     *m;
};

struct rt2661_rx_ring {
        bus_dmamap_t            map;
        bus_dma_segment_t       seg;
        bus_addr_t              physaddr;
        struct rt2661_rx_desc   *desc;
        struct rt2661_rx_data   *data;
        int                     count;
        int                     cur;
        int                     next;
};

#define RT2661_AMRR_NODES_MAX   100 /* based on IEEE80211_CACHE_SIZE */
#define RT2661_AMRR_INVALID_ID  (RT2661_AMRR_NODES_MAX + 1)

struct rt2661_amrr_node {
        struct ieee80211_amrr_node      amn;
        struct rt2661_node              *rn;
        u_int8_t                        id;
        TAILQ_ENTRY(rt2661_amrr_node)   entry;
};

struct rt2661_node {
        struct ieee80211_node           ni;
        struct rt2661_amrr_node         *amn;
};

struct rt2661_softc {
        struct device                   sc_dev;

        struct ieee80211com             sc_ic;
        int                             (*sc_newstate)(struct ieee80211com *,
                                            enum ieee80211_state, int);
        struct ieee80211_amrr           amrr;

        int                             (*sc_enable)(struct rt2661_softc *);
        void                            (*sc_disable)(struct rt2661_softc *);

        bus_dma_tag_t                   sc_dmat;
        bus_space_tag_t                 sc_st;
        bus_space_handle_t              sc_sh;

        struct timeout                  scan_to;
        struct timeout                  amrr_to;

        int                             sc_id;
        int                             sc_flags;
#define RT2661_ENABLED          (1 << 0)
#define RT2661_UPDATE_SLOT      (1 << 1)
#define RT2661_SET_SLOTTIME     (1 << 2)
#define RT2661_FWLOADED         (1 << 3)
#define RT2661_MGT_OACTIVE      (1 << 4)
#define RT2661_DATA_OACTIVE     (1 << 5)

        int                             sc_tx_timer;

        struct ieee80211_channel        *sc_curchan;

        u_char                          *ucode;
        size_t                          ucsize;

        uint8_t                         rf_rev;

        uint8_t                         rfprog;
        uint8_t                         rffreq;

        struct rt2661_tx_ring           txq[5];
        struct rt2661_tx_ring           mgtq;
        struct rt2661_rx_ring           rxq;

        uint32_t                        rf_regs[4];
        int8_t                          txpow[38];

        struct {
                uint8_t reg;
                uint8_t val;
        }                               bbp_prom[16];

        int                             hw_radio;
        int                             rx_ant;
        int                             tx_ant;
        int                             nb_ant;
        int                             ext_2ghz_lna;
        int                             ext_5ghz_lna;
        int                             rssi_2ghz_corr;
        int                             rssi_5ghz_corr;

        int                             ncalls;
        int                             avg_rssi;
        int                             sifs;

        uint32_t                        erp_csr;

        uint8_t                         bbp18;
        uint8_t                         bbp21;
        uint8_t                         bbp22;
        uint8_t                         bbp16;
        uint8_t                         bbp17;
        uint8_t                         bbp64;

#if NBPFILTER > 0
        caddr_t                         sc_drvbpf;

        union {
                struct rt2661_rx_radiotap_header th;
                uint8_t pad[64];
        }                               sc_rxtapu;
#define sc_rxtap                        sc_rxtapu.th
        int                             sc_rxtap_len;

        union {
                struct rt2661_tx_radiotap_header th;
                uint8_t pad[64];
        }                               sc_txtapu;
#define sc_txtap                        sc_txtapu.th
        int                             sc_txtap_len;
#endif
        void                            (*sc_node_free)(struct ieee80211com *,
                                            struct ieee80211_node *);
        TAILQ_HEAD(, rt2661_amrr_node)  amn;
        u_int8_t                        amn_count;
};

int     rt2661_attach(void *, int);
int     rt2661_detach(void *);
void    rt2661_suspend(void *);
void    rt2661_wakeup(void *);
int     rt2661_intr(void *);