The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/dev/iwn/if_iwnvar.h

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    1 /*      $FreeBSD: releng/8.2/sys/dev/iwn/if_iwnvar.h 216392 2010-12-12 10:27:11Z bschmidt $     */
    2 /*      $OpenBSD: if_iwnvar.h,v 1.18 2010/04/30 16:06:46 damien Exp $   */
    3 
    4 /*-
    5  * Copyright (c) 2007, 2008
    6  *      Damien Bergamini <damien.bergamini@free.fr>
    7  * Copyright (c) 2008 Sam Leffler, Errno Consulting
    8  *
    9  * Permission to use, copy, modify, and distribute this software for any
   10  * purpose with or without fee is hereby granted, provided that the above
   11  * copyright notice and this permission notice appear in all copies.
   12  *
   13  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   14  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
   15  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
   16  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
   17  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
   18  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
   19  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
   20  */
   21 
   22 struct iwn_rx_radiotap_header {
   23         struct ieee80211_radiotap_header wr_ihdr;
   24         uint64_t        wr_tsft;
   25         uint8_t         wr_flags;
   26         uint8_t         wr_rate;
   27         uint16_t        wr_chan_freq;
   28         uint16_t        wr_chan_flags;
   29         int8_t          wr_dbm_antsignal;
   30         int8_t          wr_dbm_antnoise;
   31 } __packed;
   32 
   33 #define IWN_RX_RADIOTAP_PRESENT                                         \
   34         ((1 << IEEE80211_RADIOTAP_TSFT) |                               \
   35          (1 << IEEE80211_RADIOTAP_FLAGS) |                              \
   36          (1 << IEEE80211_RADIOTAP_RATE) |                               \
   37          (1 << IEEE80211_RADIOTAP_CHANNEL) |                            \
   38          (1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL) |                      \
   39          (1 << IEEE80211_RADIOTAP_DBM_ANTNOISE))
   40 
   41 struct iwn_tx_radiotap_header {
   42         struct ieee80211_radiotap_header wt_ihdr;
   43         uint8_t         wt_flags;
   44         uint8_t         wt_rate;
   45         uint16_t        wt_chan_freq;
   46         uint16_t        wt_chan_flags;
   47 } __packed;
   48 
   49 #define IWN_TX_RADIOTAP_PRESENT                                         \
   50         ((1 << IEEE80211_RADIOTAP_FLAGS) |                              \
   51          (1 << IEEE80211_RADIOTAP_RATE) |                               \
   52          (1 << IEEE80211_RADIOTAP_CHANNEL))
   53 
   54 struct iwn_dma_info {
   55         bus_dma_tag_t           tag;
   56         bus_dmamap_t            map;
   57         bus_dma_segment_t       seg;
   58         bus_addr_t              paddr;
   59         caddr_t                 vaddr;
   60         bus_size_t              size;
   61 };
   62 
   63 struct iwn_tx_data {
   64         bus_dmamap_t            map;
   65         bus_addr_t              cmd_paddr;
   66         bus_addr_t              scratch_paddr;
   67         struct mbuf             *m;
   68         struct ieee80211_node   *ni;
   69 };
   70 
   71 struct iwn_tx_ring {
   72         struct iwn_dma_info     desc_dma;
   73         struct iwn_dma_info     cmd_dma;
   74         struct iwn_tx_desc      *desc;
   75         struct iwn_tx_cmd       *cmd;
   76         struct iwn_tx_data      data[IWN_TX_RING_COUNT];
   77         bus_dma_tag_t           data_dmat;
   78         int                     qid;
   79         int                     queued;
   80         int                     cur;
   81 };
   82 
   83 struct iwn_softc;
   84 
   85 struct iwn_rx_data {
   86         struct mbuf     *m;
   87         bus_dmamap_t    map;
   88 };
   89 
   90 struct iwn_rx_ring {
   91         struct iwn_dma_info     desc_dma;
   92         struct iwn_dma_info     stat_dma;
   93         uint32_t                *desc;
   94         struct iwn_rx_status    *stat;
   95         struct iwn_rx_data      data[IWN_RX_RING_COUNT];
   96         bus_dma_tag_t           data_dmat;
   97         int                     cur;
   98 };
   99 
  100 struct iwn_node {
  101         struct  ieee80211_node          ni;     /* must be the first */
  102         uint16_t                        disable_tid;
  103         uint8_t                         id;
  104         uint8_t                         ridx[IEEE80211_RATE_MAXSIZE];
  105 };
  106 
  107 struct iwn_calib_state {
  108         uint8_t         state;
  109 #define IWN_CALIB_STATE_INIT    0
  110 #define IWN_CALIB_STATE_ASSOC   1
  111 #define IWN_CALIB_STATE_RUN     2
  112 
  113         u_int           nbeacons;
  114         uint32_t        noise[3];
  115         uint32_t        rssi[3];
  116         uint32_t        ofdm_x1;
  117         uint32_t        ofdm_mrc_x1;
  118         uint32_t        ofdm_x4;
  119         uint32_t        ofdm_mrc_x4;
  120         uint32_t        cck_x4;
  121         uint32_t        cck_mrc_x4;
  122         uint32_t        bad_plcp_ofdm;
  123         uint32_t        fa_ofdm;
  124         uint32_t        bad_plcp_cck;
  125         uint32_t        fa_cck;
  126         uint32_t        low_fa;
  127         uint8_t         cck_state;
  128 #define IWN_CCK_STATE_INIT      0
  129 #define IWN_CCK_STATE_LOFA      1
  130 #define IWN_CCK_STATE_HIFA      2
  131 
  132         uint8_t         noise_samples[20];
  133         u_int           cur_noise_sample;
  134         uint8_t         noise_ref;
  135         uint32_t        energy_samples[10];
  136         u_int           cur_energy_sample;
  137         uint32_t        energy_cck;
  138 };
  139 
  140 struct iwn_calib_info {
  141         uint8_t         *buf;
  142         u_int           len;
  143 };
  144 
  145 struct iwn_fw_part {
  146         const uint8_t   *text;
  147         uint32_t        textsz;
  148         const uint8_t   *data;
  149         uint32_t        datasz;
  150 };
  151 
  152 struct iwn_fw_info {
  153         const uint8_t           *data;
  154         size_t                  size;
  155         struct iwn_fw_part      init;
  156         struct iwn_fw_part      main;
  157         struct iwn_fw_part      boot;
  158 };
  159 
  160 struct iwn_hal {
  161         int             (*load_firmware)(struct iwn_softc *);
  162         void            (*read_eeprom)(struct iwn_softc *);
  163         int             (*post_alive)(struct iwn_softc *);
  164         int             (*nic_config)(struct iwn_softc *);
  165         void            (*update_sched)(struct iwn_softc *, int, int, uint8_t,
  166                             uint16_t);
  167         int             (*get_temperature)(struct iwn_softc *);
  168         int             (*get_rssi)(struct iwn_softc *, struct iwn_rx_stat *);
  169         int             (*set_txpower)(struct iwn_softc *,
  170                             struct ieee80211_channel *, int);
  171         int             (*init_gains)(struct iwn_softc *);
  172         int             (*set_gains)(struct iwn_softc *);
  173         int             (*add_node)(struct iwn_softc *, struct iwn_node_info *,
  174                             int);
  175         void            (*tx_done)(struct iwn_softc *, struct iwn_rx_desc *,
  176                             struct iwn_rx_data *);
  177 #if 0   /* HT */
  178         void            (*ampdu_tx_start)(struct iwn_softc *,
  179                             struct ieee80211_node *, uint8_t, uint16_t);
  180         void            (*ampdu_tx_stop)(struct iwn_softc *, uint8_t,
  181                             uint16_t);
  182 #endif
  183         int             ntxqs;
  184         int             ndmachnls;
  185         uint8_t         broadcast_id;
  186         int             rxonsz;
  187         int             schedsz;
  188         uint32_t        fw_text_maxsz;
  189         uint32_t        fw_data_maxsz;
  190         uint32_t        fwsz;
  191         bus_size_t      sched_txfact_addr;
  192 };
  193 
  194 struct iwn_vap {
  195         struct ieee80211vap     iv_vap;
  196         uint8_t                 iv_ridx;
  197 
  198         int                     (*iv_newstate)(struct ieee80211vap *,
  199                                     enum ieee80211_state, int);
  200 };
  201 #define IWN_VAP(_vap)   ((struct iwn_vap *)(_vap))
  202 
  203 struct iwn_softc {
  204         struct ifnet            *sc_ifp;
  205         int                     sc_debug;
  206 
  207         /* Locks */
  208         struct mtx              sc_mtx;
  209 
  210         /* Bus */
  211         device_t                sc_dev;
  212         int                     mem_rid;
  213         int                     irq_rid;
  214         struct resource         *mem;
  215         struct resource         *irq;
  216 
  217         u_int                   sc_flags;
  218 #define IWN_FLAG_HAS_5GHZ       (1 << 0)
  219 #define IWN_FLAG_HAS_OTPROM     (1 << 1)
  220 #define IWN_FLAG_CALIB_DONE     (1 << 2)
  221 #define IWN_FLAG_USE_ICT        (1 << 3)
  222 #define IWN_FLAG_INTERNAL_PA    (1 << 4)
  223 
  224         uint8_t                 hw_type;
  225         const struct iwn_hal    *sc_hal;
  226         const char              *fwname;
  227         const struct iwn_sensitivity_limits
  228                                 *limits;
  229 
  230         /* TX scheduler rings. */
  231         struct iwn_dma_info     sched_dma;
  232         uint16_t                *sched;
  233         uint32_t                sched_base;
  234 
  235         /* "Keep Warm" page. */
  236         struct iwn_dma_info     kw_dma;
  237 
  238         /* Firmware image. */
  239         const struct firmware   *fw_fp;
  240 
  241         /* Firmware DMA transfer. */
  242         struct iwn_dma_info     fw_dma;
  243 
  244         /* ICT table. */
  245         struct iwn_dma_info     ict_dma;
  246         uint32_t                *ict;
  247         int                     ict_cur;
  248 
  249         /* TX/RX rings. */
  250         struct iwn_tx_ring      txq[IWN5000_NTXQUEUES];
  251         struct iwn_rx_ring      rxq;
  252 
  253         bus_space_tag_t         sc_st;
  254         bus_space_handle_t      sc_sh;
  255         void                    *sc_ih;
  256         bus_size_t              sc_sz;
  257         int                     sc_cap_off;     /* PCIe Capabilities. */
  258 
  259         /* Tasks used by the driver */
  260         struct task             sc_reinit_task;
  261         struct task             sc_radioon_task;
  262         struct task             sc_radiooff_task;
  263 
  264         int                     calib_cnt;
  265         struct iwn_calib_state  calib;
  266         u_int                   calib_init;
  267         u_int                   calib_runtime;
  268 #define IWN_CALIB_XTAL                  (1 << IWN_CALIB_IDX_XTAL)
  269 #define IWN_CALIB_DC                    (1 << IWN_CALIB_IDX_DC)
  270 #define IWN_CALIB_LO                    (1 << IWN_CALIB_IDX_LO)
  271 #define IWN_CALIB_TX_IQ                 (1 << IWN_CALIB_IDX_TX_IQ)
  272 #define IWN_CALIB_TX_IQ_PERIODIC        (1 << IWN_CALIB_IDX_TX_IQ_PERIODIC)
  273 #define IWN_CALIB_BASE_BAND             (1 << IWN_CALIB_IDX_BASE_BAND)
  274 #define IWN_CALIB_NUM                   6
  275         struct iwn_calib_info   calib_results[IWN_CALIB_NUM];
  276 #define IWN_CALIB_IDX_XTAL              0
  277 #define IWN_CALIB_IDX_DC                1
  278 #define IWN_CALIB_IDX_LO                2
  279 #define IWN_CALIB_IDX_TX_IQ             3
  280 #define IWN_CALIB_IDX_TX_IQ_PERIODIC    4
  281 #define IWN_CALIB_IDX_BASE_BAND         5
  282 
  283         struct iwn_fw_info      fw;
  284         uint32_t                errptr;
  285 
  286         struct iwn_rx_stat      last_rx_stat;
  287         int                     last_rx_valid;
  288         struct iwn_ucode_info   ucode_info;
  289         struct iwn_rxon         rxon;
  290         uint32_t                rawtemp;
  291         int                     temp;
  292         int                     noise;
  293         uint32_t                qfullmsk;
  294 
  295         uint32_t                prom_base;
  296         struct iwn4965_eeprom_band
  297                                 bands[IWN_NBANDS];
  298         struct iwn_eeprom_chan  eeprom_channels[IWN_NBANDS][IWN_MAX_CHAN_PER_BAND];
  299         uint16_t                rfcfg;
  300         uint8_t                 calib_ver;
  301         char                    eeprom_domain[4];
  302         int16_t                 eeprom_voltage;
  303         int8_t                  maxpwr2GHz;
  304         int8_t                  maxpwr5GHz;
  305         int8_t                  maxpwr[IEEE80211_CHAN_MAX];
  306         int8_t                  enh_maxpwr[35];
  307 
  308         int32_t                 temp_off;
  309         uint32_t                int_mask;
  310         uint8_t                 ntxchains;
  311         uint8_t                 nrxchains;
  312         uint8_t                 txchainmask;
  313         uint8_t                 rxchainmask;
  314         uint8_t                 chainmask;
  315 
  316         struct callout          sc_timer_to;
  317         int                     sc_tx_timer;
  318 
  319         struct iwn_rx_radiotap_header sc_rxtap;
  320         struct iwn_tx_radiotap_header sc_txtap;
  321 };
  322 
  323 #define IWN_LOCK_INIT(_sc) \
  324         mtx_init(&(_sc)->sc_mtx, device_get_nameunit((_sc)->sc_dev), \
  325             MTX_NETWORK_LOCK, MTX_DEF)
  326 #define IWN_LOCK(_sc)                   mtx_lock(&(_sc)->sc_mtx)
  327 #define IWN_LOCK_ASSERT(_sc)            mtx_assert(&(_sc)->sc_mtx, MA_OWNED)
  328 #define IWN_UNLOCK(_sc)                 mtx_unlock(&(_sc)->sc_mtx)
  329 #define IWN_LOCK_DESTROY(_sc)           mtx_destroy(&(_sc)->sc_mtx)

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