/*-
 * Copyright (c) 2005
 *      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;
        int8_t          wr_antsignal;
        int8_t          wr_antnoise;
} __packed __aligned(8);

#define RT2661_RX_RADIOTAP_PRESENT                                      \
        ((1 << IEEE80211_RADIOTAP_TSFT) |                               \
         (1 << IEEE80211_RADIOTAP_FLAGS) |                              \
         (1 << IEEE80211_RADIOTAP_RATE) |                               \
         (1 << IEEE80211_RADIOTAP_CHANNEL) |                            \
         (1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL) |                      \
         (1 << IEEE80211_RADIOTAP_DBM_ANTNOISE))

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;
        uint8_t                 rix;
        int8_t                  rssi;
};

struct rt2661_tx_ring {
        bus_dma_tag_t           desc_dmat;
        bus_dma_tag_t           data_dmat;
        bus_dmamap_t            desc_map;
        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_dma_tag_t           desc_dmat;
        bus_dma_tag_t           data_dmat;
        bus_dmamap_t            desc_map;
        bus_addr_t              physaddr;
        struct rt2661_rx_desc   *desc;
        struct rt2661_rx_data   *data;
        int                     count;
        int                     cur;
        int                     next;
};

struct rt2661_vap {
        struct ieee80211vap     ral_vap;

        int                     (*ral_newstate)(struct ieee80211vap *,
                                    enum ieee80211_state, int);
};
#define RT2661_VAP(vap)         ((struct rt2661_vap *)(vap))

struct rt2661_softc {
        struct ieee80211com             sc_ic;
        struct ieee80211_ratectl_tx_status sc_txs;
        struct mtx                      sc_mtx;
        struct mbufq                    sc_snd;
        device_t                        sc_dev;
        bus_space_tag_t                 sc_st;
        bus_space_handle_t              sc_sh;

        struct callout                  watchdog_ch;

        int                             sc_tx_timer;
        int                             sc_invalid;
        int                             sc_debug;
/*
 * The same in both up to here
 * ------------------------------------------------
 */

        int                             sc_flags;
#define RAL_FW_LOADED           0x1
#define RAL_INPUT_RUNNING       0x2
#define RAL_RUNNING             0x4
        int                             sc_id;
        struct ieee80211_channel        *sc_curchan;

        uint8_t                         rf_rev;

        uint8_t                         rfprog;
        uint8_t                         rffreq;

        struct rt2661_tx_ring           txq[4];
        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;

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

        int                             dwelltime;

        struct rt2661_rx_radiotap_header sc_rxtap;
        struct rt2661_tx_radiotap_header sc_txtap;
};

int     rt2661_attach(device_t, int);
int     rt2661_detach(void *);
void    rt2661_shutdown(void *);
void    rt2661_suspend(void *);
void    rt2661_resume(void *);
void    rt2661_intr(void *);

#define RAL_LOCK(sc)            mtx_lock(&(sc)->sc_mtx)
#define RAL_LOCK_ASSERT(sc)     mtx_assert(&(sc)->sc_mtx, MA_OWNED)
#define RAL_UNLOCK(sc)          mtx_unlock(&(sc)->sc_mtx)