/*-
 * Copyright (c) 2005, 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 rt2560_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;
        uint8_t         wr_antenna;
} __packed __aligned(8);

#define RT2560_RX_RADIOTAP_PRESENT                                      \
        ((1 << IEEE80211_RADIOTAP_TSFT) |                               \
         (1 << IEEE80211_RADIOTAP_FLAGS) |                              \
         (1 << IEEE80211_RADIOTAP_RATE) |                               \
         (1 << IEEE80211_RADIOTAP_CHANNEL) |                            \
         (1 << IEEE80211_RADIOTAP_ANTENNA) |                            \
         (1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL) |                      \
         (1 << IEEE80211_RADIOTAP_DBM_ANTNOISE))

struct rt2560_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;
        uint8_t         wt_antenna;
} __packed;

#define RT2560_TX_RADIOTAP_PRESENT                                      \
        ((1 << IEEE80211_RADIOTAP_FLAGS) |                              \
         (1 << IEEE80211_RADIOTAP_RATE) |                               \
         (1 << IEEE80211_RADIOTAP_CHANNEL) |                            \
         (1 << IEEE80211_RADIOTAP_ANTENNA))

struct rt2560_tx_data {
        bus_dmamap_t                    map;
        struct mbuf                     *m;
        struct ieee80211_node           *ni;
        uint8_t                         rix;
        int8_t                          rssi;
};

struct rt2560_tx_ring {
        bus_dma_tag_t           desc_dmat;
        bus_dma_tag_t           data_dmat;
        bus_dmamap_t            desc_map;
        bus_addr_t              physaddr;
        struct rt2560_tx_desc   *desc;
        struct rt2560_tx_data   *data;
        int                     count;
        int                     queued;
        int                     cur;
        int                     next;
        int                     cur_encrypt;
        int                     next_encrypt;
};

struct rt2560_rx_data {
        bus_dmamap_t    map;
        struct mbuf     *m;
        int             drop;
};

struct rt2560_rx_ring {
        bus_dma_tag_t           desc_dmat;
        bus_dma_tag_t           data_dmat;
        bus_dmamap_t            desc_map;
        bus_addr_t              physaddr;
        struct rt2560_rx_desc   *desc;
        struct rt2560_rx_data   *data;
        int                     count;
        int                     cur;
        int                     next;
        int                     cur_decrypt;
};

struct rt2560_vap {
        struct ieee80211vap     ral_vap;

        int                     (*ral_newstate)(struct ieee80211vap *,
                                    enum ieee80211_state, int);
};
#define RT2560_VAP(vap)         ((struct rt2560_vap *)(vap))

struct rt2560_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
 * ------------------------------------------------
 */
        uint32_t                asic_rev;
        uint32_t                eeprom_rev;
        uint8_t                 rf_rev;
        uint8_t                 rssi_corr;

        struct rt2560_tx_ring   txq;
        struct rt2560_tx_ring   prioq;
        struct rt2560_tx_ring   atimq;
        struct rt2560_tx_ring   bcnq;
        struct rt2560_rx_ring   rxq;

        uint32_t                rf_regs[4];
        uint8_t                 txpow[14];

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

        int                     led_mode;
        int                     hw_radio;
        int                     rx_ant;
        int                     tx_ant;
        int                     nb_ant;

        struct rt2560_rx_radiotap_header sc_rxtap;
        struct rt2560_tx_radiotap_header sc_txtap;

#define RT2560_F_INPUT_RUNNING  0x1
#define RT2560_F_RUNNING        0x2
        int                     sc_flags;
};

int     rt2560_attach(device_t, int);
int     rt2560_detach(void *);
void    rt2560_stop(void *);
void    rt2560_resume(void *);
void    rt2560_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)