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/9.2/sys/dev/iwn/if_iwnvar.h 221651 2011-05-08 12:06:12Z 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         int                     read;
   82 };
   83 
   84 struct iwn_softc;
   85 
   86 struct iwn_rx_data {
   87         struct mbuf     *m;
   88         bus_dmamap_t    map;
   89 };
   90 
   91 struct iwn_rx_ring {
   92         struct iwn_dma_info     desc_dma;
   93         struct iwn_dma_info     stat_dma;
   94         uint32_t                *desc;
   95         struct iwn_rx_status    *stat;
   96         struct iwn_rx_data      data[IWN_RX_RING_COUNT];
   97         bus_dma_tag_t           data_dmat;
   98         int                     cur;
   99 };
  100 
  101 struct iwn_node {
  102         struct  ieee80211_node          ni;     /* must be the first */
  103         uint16_t                        disable_tid;
  104         uint8_t                         id;
  105         uint32_t                        ridx[256];
  106         struct {
  107                 uint64_t                bitmap;
  108                 int                     startidx;
  109                 int                     nframes;
  110         } agg[IEEE80211_TID_SIZE];
  111 };
  112 
  113 struct iwn_calib_state {
  114         uint8_t         state;
  115 #define IWN_CALIB_STATE_INIT    0
  116 #define IWN_CALIB_STATE_ASSOC   1
  117 #define IWN_CALIB_STATE_RUN     2
  118 
  119         u_int           nbeacons;
  120         uint32_t        noise[3];
  121         uint32_t        rssi[3];
  122         uint32_t        ofdm_x1;
  123         uint32_t        ofdm_mrc_x1;
  124         uint32_t        ofdm_x4;
  125         uint32_t        ofdm_mrc_x4;
  126         uint32_t        cck_x4;
  127         uint32_t        cck_mrc_x4;
  128         uint32_t        bad_plcp_ofdm;
  129         uint32_t        fa_ofdm;
  130         uint32_t        bad_plcp_cck;
  131         uint32_t        fa_cck;
  132         uint32_t        low_fa;
  133         uint8_t         cck_state;
  134 #define IWN_CCK_STATE_INIT      0
  135 #define IWN_CCK_STATE_LOFA      1
  136 #define IWN_CCK_STATE_HIFA      2
  137 
  138         uint8_t         noise_samples[20];
  139         u_int           cur_noise_sample;
  140         uint8_t         noise_ref;
  141         uint32_t        energy_samples[10];
  142         u_int           cur_energy_sample;
  143         uint32_t        energy_cck;
  144 };
  145 
  146 struct iwn_calib_info {
  147         uint8_t         *buf;
  148         u_int           len;
  149 };
  150 
  151 struct iwn_fw_part {
  152         const uint8_t   *text;
  153         uint32_t        textsz;
  154         const uint8_t   *data;
  155         uint32_t        datasz;
  156 };
  157 
  158 struct iwn_fw_info {
  159         const uint8_t           *data;
  160         size_t                  size;
  161         struct iwn_fw_part      init;
  162         struct iwn_fw_part      main;
  163         struct iwn_fw_part      boot;
  164 };
  165 
  166 struct iwn_ops {
  167         int             (*load_firmware)(struct iwn_softc *);
  168         void            (*read_eeprom)(struct iwn_softc *);
  169         int             (*post_alive)(struct iwn_softc *);
  170         int             (*nic_config)(struct iwn_softc *);
  171         void            (*update_sched)(struct iwn_softc *, int, int, uint8_t,
  172                             uint16_t);
  173         int             (*get_temperature)(struct iwn_softc *);
  174         int             (*get_rssi)(struct iwn_softc *, struct iwn_rx_stat *);
  175         int             (*set_txpower)(struct iwn_softc *,
  176                             struct ieee80211_channel *, int);
  177         int             (*init_gains)(struct iwn_softc *);
  178         int             (*set_gains)(struct iwn_softc *);
  179         int             (*add_node)(struct iwn_softc *, struct iwn_node_info *,
  180                             int);
  181         void            (*tx_done)(struct iwn_softc *, struct iwn_rx_desc *,
  182                             struct iwn_rx_data *);
  183         void            (*ampdu_tx_start)(struct iwn_softc *,
  184                             struct ieee80211_node *, int, uint8_t, uint16_t);
  185         void            (*ampdu_tx_stop)(struct iwn_softc *, int, uint8_t,
  186                             uint16_t);
  187 };
  188 
  189 struct iwn_vap {
  190         struct ieee80211vap     iv_vap;
  191         uint8_t                 iv_ridx;
  192 
  193         int                     (*iv_newstate)(struct ieee80211vap *,
  194                                     enum ieee80211_state, int);
  195 };
  196 #define IWN_VAP(_vap)   ((struct iwn_vap *)(_vap))
  197 
  198 struct iwn_softc {
  199         device_t                sc_dev;
  200 
  201         struct ifnet            *sc_ifp;
  202         int                     sc_debug;
  203 
  204         struct mtx              sc_mtx;
  205 
  206         u_int                   sc_flags;
  207 #define IWN_FLAG_HAS_OTPROM     (1 << 1)
  208 #define IWN_FLAG_CALIB_DONE     (1 << 2)
  209 #define IWN_FLAG_USE_ICT        (1 << 3)
  210 #define IWN_FLAG_INTERNAL_PA    (1 << 4)
  211 #define IWN_FLAG_HAS_11N        (1 << 6)
  212 #define IWN_FLAG_ENH_SENS       (1 << 7)
  213 #define IWN_FLAG_ADV_BTCOEX     (1 << 8)
  214 
  215         uint8_t                 hw_type;
  216 
  217         struct iwn_ops          ops;
  218         const char              *fwname;
  219         const struct iwn_sensitivity_limits
  220                                 *limits;
  221         int                     ntxqs;
  222         int                     firstaggqueue;
  223         int                     ndmachnls;
  224         uint8_t                 broadcast_id;
  225         int                     rxonsz;
  226         int                     schedsz;
  227         uint32_t                fw_text_maxsz;
  228         uint32_t                fw_data_maxsz;
  229         uint32_t                fwsz;
  230         bus_size_t              sched_txfact_addr;
  231         uint32_t                reset_noise_gain;
  232         uint32_t                noise_gain;
  233 
  234         /* TX scheduler rings. */
  235         struct iwn_dma_info     sched_dma;
  236         uint16_t                *sched;
  237         uint32_t                sched_base;
  238 
  239         /* "Keep Warm" page. */
  240         struct iwn_dma_info     kw_dma;
  241 
  242         /* Firmware image. */
  243         const struct firmware   *fw_fp;
  244 
  245         /* Firmware DMA transfer. */
  246         struct iwn_dma_info     fw_dma;
  247 
  248         /* ICT table. */
  249         struct iwn_dma_info     ict_dma;
  250         uint32_t                *ict;
  251         int                     ict_cur;
  252 
  253         /* TX/RX rings. */
  254         struct iwn_tx_ring      txq[IWN5000_NTXQUEUES];
  255         struct iwn_rx_ring      rxq;
  256 
  257         int                     mem_rid;
  258         struct resource         *mem;
  259         bus_space_tag_t         sc_st;
  260         bus_space_handle_t      sc_sh;
  261         int                     irq_rid;
  262         struct resource         *irq;
  263         void                    *sc_ih;
  264         bus_size_t              sc_sz;
  265         int                     sc_cap_off;     /* PCIe Capabilities. */
  266 
  267         /* Tasks used by the driver */
  268         struct task             sc_reinit_task;
  269         struct task             sc_radioon_task;
  270         struct task             sc_radiooff_task;
  271 
  272         struct callout          calib_to;
  273         int                     calib_cnt;
  274         struct iwn_calib_state  calib;
  275         struct callout          watchdog_to;
  276 
  277         struct iwn_fw_info      fw;
  278         struct iwn_calib_info   calibcmd[5];
  279         uint32_t                errptr;
  280 
  281         struct iwn_rx_stat      last_rx_stat;
  282         int                     last_rx_valid;
  283         struct iwn_ucode_info   ucode_info;
  284         struct iwn_rxon         rxon;
  285         uint32_t                rawtemp;
  286         int                     temp;
  287         int                     noise;
  288         uint32_t                qfullmsk;
  289 
  290         uint32_t                prom_base;
  291         struct iwn4965_eeprom_band
  292                                 bands[IWN_NBANDS];
  293         struct iwn_eeprom_chan  eeprom_channels[IWN_NBANDS][IWN_MAX_CHAN_PER_BAND];
  294         uint16_t                rfcfg;
  295         uint8_t                 calib_ver;
  296         char                    eeprom_domain[4];
  297         uint32_t                eeprom_crystal;
  298         int16_t                 eeprom_temp;
  299         int16_t                 eeprom_voltage;
  300         int8_t                  maxpwr2GHz;
  301         int8_t                  maxpwr5GHz;
  302         int8_t                  maxpwr[IEEE80211_CHAN_MAX];
  303 
  304         int32_t                 temp_off;
  305         uint32_t                int_mask;
  306         uint8_t                 ntxchains;
  307         uint8_t                 nrxchains;
  308         uint8_t                 txchainmask;
  309         uint8_t                 rxchainmask;
  310         uint8_t                 chainmask;
  311 
  312         int                     sc_tx_timer;
  313 
  314         struct ieee80211_tx_ampdu *qid2tap[IWN5000_NTXQUEUES];
  315 
  316         int                     (*sc_ampdu_rx_start)(struct ieee80211_node *,
  317                                     struct ieee80211_rx_ampdu *, int, int, int);
  318         void                    (*sc_ampdu_rx_stop)(struct ieee80211_node *,
  319                                     struct ieee80211_rx_ampdu *);
  320         int                     (*sc_addba_request)(struct ieee80211_node *,
  321                                     struct ieee80211_tx_ampdu *, int, int, int);
  322         int                     (*sc_addba_response)(struct ieee80211_node *,
  323                                     struct ieee80211_tx_ampdu *, int, int, int);
  324         void                    (*sc_addba_stop)(struct ieee80211_node *,
  325                                     struct ieee80211_tx_ampdu *);
  326 
  327 
  328         struct iwn_rx_radiotap_header sc_rxtap;
  329         struct iwn_tx_radiotap_header sc_txtap;
  330 };
  331 
  332 #define IWN_LOCK_INIT(_sc) \
  333         mtx_init(&(_sc)->sc_mtx, device_get_nameunit((_sc)->sc_dev), \
  334             MTX_NETWORK_LOCK, MTX_DEF)
  335 #define IWN_LOCK(_sc)                   mtx_lock(&(_sc)->sc_mtx)
  336 #define IWN_LOCK_ASSERT(_sc)            mtx_assert(&(_sc)->sc_mtx, MA_OWNED)
  337 #define IWN_UNLOCK(_sc)                 mtx_unlock(&(_sc)->sc_mtx)
  338 #define IWN_LOCK_DESTROY(_sc)           mtx_destroy(&(_sc)->sc_mtx)

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