drivers/net/wireless/brcm80211/brcmsmac/pub.h

   1 /*
   2  * Copyright (c) 2010 Broadcom Corporation
   3  *
   4  * Permission to use, copy, modify, and/or distribute this software for any
   5  * purpose with or without fee is hereby granted, provided that the above
   6  * copyright notice and this permission notice appear in all copies.
   7  *
   8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
  11  * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
  13  * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
  14  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  15  */
  16
  17 #ifndef _BRCM_PUB_H_
  18 #define _BRCM_PUB_H_
  19
  20 #include <linux/bcma/bcma.h>
  21 #include <brcmu_wifi.h>
  22 #include "types.h"
  23 #include "defs.h"
  24
  25 #define BRCMS_NUMRATES  16      /* max # of rates in a rateset */
  26
  27 /* phy types */
  28 #define PHY_TYPE_A      0       /* Phy type A */
  29 #define PHY_TYPE_G      2       /* Phy type G */
  30 #define PHY_TYPE_N      4       /* Phy type N */
  31 #define PHY_TYPE_LP     5       /* Phy type Low Power A/B/G */
  32 #define PHY_TYPE_SSN    6       /* Phy type Single Stream N */
  33 #define PHY_TYPE_LCN    8       /* Phy type Single Stream N */
  34 #define PHY_TYPE_LCNXN  9       /* Phy type 2-stream N */
  35 #define PHY_TYPE_HT     7       /* Phy type 3-Stream N */
  36
  37 /* bw */
  38 #define BRCMS_10_MHZ    10      /* 10Mhz nphy channel bandwidth */
  39 #define BRCMS_20_MHZ    20      /* 20Mhz nphy channel bandwidth */
  40 #define BRCMS_40_MHZ    40      /* 40Mhz nphy channel bandwidth */
  41
  42 #define BRCMS_RSSI_MINVAL       -200    /* Low value, e.g. for forcing roam */
  43 #define BRCMS_RSSI_NO_SIGNAL    -91     /* NDIS RSSI link quality cutoffs */
  44 #define BRCMS_RSSI_VERY_LOW     -80     /* Very low quality cutoffs */
  45 #define BRCMS_RSSI_LOW          -70     /* Low quality cutoffs */
  46 #define BRCMS_RSSI_GOOD         -68     /* Good quality cutoffs */
  47 #define BRCMS_RSSI_VERY_GOOD    -58     /* Very good quality cutoffs */
  48 #define BRCMS_RSSI_EXCELLENT    -57     /* Excellent quality cutoffs */
  49
  50 /* a large TX Power as an init value to factor out of min() calculations,
  51  * keep low enough to fit in an s8, units are .25 dBm
  52  */
  53 #define BRCMS_TXPWR_MAX         (127)   /* ~32 dBm = 1,500 mW */
  54
  55 /* rate related definitions */
  56 #define BRCMS_RATE_FLAG 0x80    /* Flag to indicate it is a basic rate */
  57 #define BRCMS_RATE_MASK 0x7f    /* Rate value mask w/o basic rate flag */
  58
  59 /* legacy rx Antenna diversity for SISO rates */
  60 #define ANT_RX_DIV_FORCE_0      0       /* Use antenna 0 */
  61 #define ANT_RX_DIV_FORCE_1      1       /* Use antenna 1 */
  62 #define ANT_RX_DIV_START_1      2       /* Choose starting with 1 */
  63 #define ANT_RX_DIV_START_0      3       /* Choose starting with 0 */
  64 #define ANT_RX_DIV_ENABLE       3       /* APHY bbConfig Enable RX Diversity */
  65 /* default antdiv setting */
  66 #define ANT_RX_DIV_DEF          ANT_RX_DIV_START_0
  67
  68 /* legacy rx Antenna diversity for SISO rates */
  69 /* Tx on antenna 0, "legacy term Main" */
  70 #define ANT_TX_FORCE_0          0
  71 /* Tx on antenna 1, "legacy term Aux" */
  72 #define ANT_TX_FORCE_1          1
  73 /* Tx on phy's last good Rx antenna */
  74 #define ANT_TX_LAST_RX          3
  75 /* driver's default tx antenna setting */
  76 #define ANT_TX_DEF              3
  77
  78 /* Tx Chain values */
  79 /* def bitmap of txchain */
  80 #define TXCHAIN_DEF             0x1
  81 /* default bitmap of tx chains for nphy */
  82 #define TXCHAIN_DEF_NPHY        0x3
  83 /* default bitmap of tx chains for nphy */
  84 #define TXCHAIN_DEF_HTPHY       0x7
  85 /* def bitmap of rxchain */
  86 #define RXCHAIN_DEF             0x1
  87 /* default bitmap of rx chains for nphy */
  88 #define RXCHAIN_DEF_NPHY        0x3
  89 /* default bitmap of rx chains for nphy */
  90 #define RXCHAIN_DEF_HTPHY       0x7
  91 /* no antenna switch */
  92 #define ANTSWITCH_NONE          0
  93 /* antenna switch on 4321CB2, 2of3 */
  94 #define ANTSWITCH_TYPE_1        1
  95 /* antenna switch on 4321MPCI, 2of3 */
  96 #define ANTSWITCH_TYPE_2        2
  97 /* antenna switch on 4322, 2of3 */
  98 #define ANTSWITCH_TYPE_3        3
  99
 100 #define RXBUFSZ         PKTBUFSZ
 101
 102 #define MAX_STREAMS_SUPPORTED   4       /* max number of streams supported */
 103
 104 struct brcm_rateset {
 105         /* # rates in this set */
 106         u32 count;
 107         /* rates in 500kbps units w/hi bit set if basic */
 108         u8 rates[WL_NUMRATES];
 109 };
 110
 111 struct brcms_c_rateset {
 112         uint count;             /* number of rates in rates[] */
 113          /* rates in 500kbps units w/hi bit set if basic */
 114         u8 rates[BRCMS_NUMRATES];
 115         u8 htphy_membership;    /* HT PHY Membership */
 116         u8 mcs[MCSSET_LEN];     /* supported mcs index bit map */
 117 };
 118
 119 /* All the HT-specific default advertised capabilities (including AMPDU)
 120  * should be grouped here at one place
 121  */
 122 #define AMPDU_DEF_MPDU_DENSITY  6       /* default mpdu density (110 ==> 4us) */
 123
 124 /* wlc internal bss_info */
 125 struct brcms_bss_info {
 126         u8 BSSID[ETH_ALEN];     /* network BSSID */
 127         u16 flags;              /* flags for internal attributes */
 128         u8 SSID_len;            /* the length of SSID */
 129         u8 SSID[32];            /* SSID string */
 130         s16 RSSI;               /* receive signal strength (in dBm) */
 131         s16 SNR;                /* receive signal SNR in dB */
 132         u16 beacon_period;      /* units are Kusec */
 133         u16 chanspec;   /* Channel num, bw, ctrl_sb and band */
 134         struct brcms_c_rateset rateset; /* supported rates */
 135 };
 136
 137 #define MAC80211_PROMISC_BCNS   (1 << 0)
 138 #define MAC80211_SCAN           (1 << 1)
 139
 140 /*
 141  * Public portion of common driver state structure.
 142  * The wlc handle points at this.
 143  */
 144 struct brcms_pub {
 145         struct brcms_c_info *wlc;
 146         struct ieee80211_hw *ieee_hw;
 147         struct scb_ampdu *global_ampdu;
 148         uint mac80211_state;
 149         uint unit;              /* device instance number */
 150         uint corerev;           /* core revision */
 151         struct si_pub *sih;     /* SI handle (cookie for siutils calls) */
 152         bool up;                /* interface up and running */
 153         bool hw_off;            /* HW is off */
 154         bool hw_up;             /* one time hw up/down */
 155         bool _piomode;          /* true if pio mode */
 156         uint _nbands;           /* # bands supported */
 157         uint now;               /* # elapsed seconds */
 158
 159         bool delayed_down;      /* down delayed */
 160         bool associated;        /* true:part of [I]BSS, false: not */
 161         /* (union of stas_associated, aps_associated) */
 162         bool _ampdu;            /* ampdu enabled or not */
 163         u8 _n_enab;             /* bitmap of 11N + HT support */
 164
 165         u8 cur_etheraddr[ETH_ALEN];     /* our local ethernet address */
 166
 167         u32 radio_disabled;     /* bit vector for radio disabled reasons */
 168
 169         u16 boardrev;   /* version # of particular board */
 170         u8 sromrev;             /* version # of the srom */
 171         char srom_ccode[BRCM_CNTRY_BUF_SZ];     /* Country Code in SROM */
 172         u32 boardflags; /* Board specific flags from srom */
 173         u32 boardflags2;        /* More board flags if sromrev >= 4 */
 174         bool phy_11ncapable;    /* the PHY/HW is capable of 802.11N */
 175
 176         struct wl_cnt *_cnt;    /* low-level counters in driver */
 177         struct dentry *dbgfs_dir;
 178 };
 179
 180 enum wlc_par_id {
 181         IOV_MPC = 1,
 182         IOV_RTSTHRESH,
 183         IOV_QTXPOWER,
 184         IOV_BCN_LI_BCN          /* Beacon listen interval in # of beacons */
 185 };
 186
 187 /***********************************************
 188  * Feature-related macros to optimize out code *
 189  * *********************************************
 190  */
 191
 192 #define ENAB_1x1        0x01
 193 #define ENAB_2x2        0x02
 194 #define ENAB_3x3        0x04
 195 #define ENAB_4x4        0x08
 196 #define SUPPORT_11N     (ENAB_1x1|ENAB_2x2)
 197 #define SUPPORT_HT      (ENAB_1x1|ENAB_2x2|ENAB_3x3)
 198
 199 /* WL11N Support */
 200 #define AMPDU_AGG_HOST  1
 201
 202 /* network protection config */
 203 #define BRCMS_PROT_G_SPEC               1       /* SPEC g protection */
 204 #define BRCMS_PROT_G_OVR                2       /* SPEC g prot override */
 205 #define BRCMS_PROT_G_USER               3       /* gmode specified by user */
 206 #define BRCMS_PROT_OVERLAP      4       /* overlap */
 207 #define BRCMS_PROT_N_USER               10      /* nmode specified by user */
 208 #define BRCMS_PROT_N_CFG                11      /* n protection */
 209 #define BRCMS_PROT_N_CFG_OVR    12      /* n protection override */
 210 #define BRCMS_PROT_N_NONGF      13      /* non-GF protection */
 211 #define BRCMS_PROT_N_NONGF_OVR  14      /* non-GF protection override */
 212 #define BRCMS_PROT_N_PAM_OVR    15      /* n preamble override */
 213 #define BRCMS_PROT_N_OBSS               16      /* non-HT OBSS present */
 214
 215 /*
 216  * 54g modes (basic bits may still be overridden)
 217  *
 218  * GMODE_LEGACY_B
 219  *      Rateset: 1b, 2b, 5.5, 11
 220  *      Preamble: Long
 221  *      Shortslot: Off
 222  * GMODE_AUTO
 223  *      Rateset: 1b, 2b, 5.5b, 11b, 18, 24, 36, 54
 224  *      Extended Rateset: 6, 9, 12, 48
 225  *      Preamble: Long
 226  *      Shortslot: Auto
 227  * GMODE_ONLY
 228  *      Rateset: 1b, 2b, 5.5b, 11b, 18, 24b, 36, 54
 229  *      Extended Rateset: 6b, 9, 12b, 48
 230  *      Preamble: Short required
 231  *      Shortslot: Auto
 232  * GMODE_B_DEFERRED
 233  *      Rateset: 1b, 2b, 5.5b, 11b, 18, 24, 36, 54
 234  *      Extended Rateset: 6, 9, 12, 48
 235  *      Preamble: Long
 236  *      Shortslot: On
 237  * GMODE_PERFORMANCE
 238  *      Rateset: 1b, 2b, 5.5b, 6b, 9, 11b, 12b, 18, 24b, 36, 48, 54
 239  *      Preamble: Short required
 240  *      Shortslot: On and required
 241  * GMODE_LRS
 242  *      Rateset: 1b, 2b, 5.5b, 11b
 243  *      Extended Rateset: 6, 9, 12, 18, 24, 36, 48, 54
 244  *      Preamble: Long
 245  *      Shortslot: Auto
 246  */
 247 #define GMODE_LEGACY_B          0
 248 #define GMODE_AUTO              1
 249 #define GMODE_ONLY              2
 250 #define GMODE_B_DEFERRED        3
 251 #define GMODE_PERFORMANCE       4
 252 #define GMODE_LRS               5
 253 #define GMODE_MAX               6
 254
 255 /* MCS values greater than this enable multiple streams */
 256 #define HIGHEST_SINGLE_STREAM_MCS       7
 257
 258 #define MAXBANDS                2       /* Maximum #of bands */
 259
 260 /* max number of antenna configurations */
 261 #define ANT_SELCFG_MAX          4
 262
 263 struct brcms_antselcfg {
 264         u8 ant_config[ANT_SELCFG_MAX];  /* antenna configuration */
 265         u8 num_antcfg;  /* number of available antenna configurations */
 266 };
 267
 268 /* common functions for every port */
 269 struct brcms_c_info *brcms_c_attach(struct brcms_info *wl,
 270                                     struct bcma_device *core, uint unit,
 271                                     bool piomode, uint *perr);
 272 uint brcms_c_detach(struct brcms_c_info *wlc);
 273 int brcms_c_up(struct brcms_c_info *wlc);
 274 uint brcms_c_down(struct brcms_c_info *wlc);
 275
 276 bool brcms_c_chipmatch(struct bcma_device *core);
 277 void brcms_c_init(struct brcms_c_info *wlc, bool mute_tx);
 278 void brcms_c_reset(struct brcms_c_info *wlc);
 279
 280 void brcms_c_intrson(struct brcms_c_info *wlc);
 281 u32 brcms_c_intrsoff(struct brcms_c_info *wlc);
 282 void brcms_c_intrsrestore(struct brcms_c_info *wlc, u32 macintmask);
 283 bool brcms_c_intrsupd(struct brcms_c_info *wlc);
 284 bool brcms_c_isr(struct brcms_c_info *wlc);
 285 bool brcms_c_dpc(struct brcms_c_info *wlc, bool bounded);
 286 bool brcms_c_sendpkt_mac80211(struct brcms_c_info *wlc, struct sk_buff *sdu,
 287                               struct ieee80211_hw *hw);
 288 bool brcms_c_aggregatable(struct brcms_c_info *wlc, u8 tid);
 289 void brcms_c_protection_upd(struct brcms_c_info *wlc, uint idx, int val);
 290 int brcms_c_get_header_len(void);
 291 void brcms_c_set_addrmatch(struct brcms_c_info *wlc, int match_reg_offset,
 292                            const u8 *addr);
 293 void brcms_c_wme_setparams(struct brcms_c_info *wlc, u16 aci,
 294                            const struct ieee80211_tx_queue_params *arg,
 295                            bool suspend);
 296 struct brcms_pub *brcms_c_pub(struct brcms_c_info *wlc);
 297 void brcms_c_ampdu_flush(struct brcms_c_info *wlc, struct ieee80211_sta *sta,
 298                          u16 tid);
 299 void brcms_c_ampdu_tx_operational(struct brcms_c_info *wlc, u8 tid,
 300                                   u8 ba_wsize, uint max_rx_ampdu_bytes);
 301 int brcms_c_module_register(struct brcms_pub *pub, const char *name,
 302                             struct brcms_info *hdl,
 303                             int (*down_fn)(void *handle));
 304 int brcms_c_module_unregister(struct brcms_pub *pub, const char *name,
 305                               struct brcms_info *hdl);
 306 void brcms_c_suspend_mac_and_wait(struct brcms_c_info *wlc);
 307 void brcms_c_enable_mac(struct brcms_c_info *wlc);
 308 void brcms_c_associate_upd(struct brcms_c_info *wlc, bool state);
 309 void brcms_c_scan_start(struct brcms_c_info *wlc);
 310 void brcms_c_scan_stop(struct brcms_c_info *wlc);
 311 int brcms_c_get_curband(struct brcms_c_info *wlc);
 312 int brcms_c_set_channel(struct brcms_c_info *wlc, u16 channel);
 313 int brcms_c_set_rate_limit(struct brcms_c_info *wlc, u16 srl, u16 lrl);
 314 void brcms_c_get_current_rateset(struct brcms_c_info *wlc,
 315                                  struct brcm_rateset *currs);
 316 int brcms_c_set_rateset(struct brcms_c_info *wlc, struct brcm_rateset *rs);
 317 int brcms_c_set_beacon_period(struct brcms_c_info *wlc, u16 period);
 318 u16 brcms_c_get_phy_type(struct brcms_c_info *wlc, int phyidx);
 319 void brcms_c_set_shortslot_override(struct brcms_c_info *wlc,
 320                                     s8 sslot_override);
 321 void brcms_c_set_beacon_listen_interval(struct brcms_c_info *wlc, u8 interval);
 322 u64 brcms_c_tsf_get(struct brcms_c_info *wlc);
 323 void brcms_c_tsf_set(struct brcms_c_info *wlc, u64 tsf);
 324 int brcms_c_set_tx_power(struct brcms_c_info *wlc, int txpwr);
 325 int brcms_c_get_tx_power(struct brcms_c_info *wlc);
 326 bool brcms_c_check_radio_disabled(struct brcms_c_info *wlc);
 327 void brcms_c_mute(struct brcms_c_info *wlc, bool on);
 328 bool brcms_c_tx_flush_completed(struct brcms_c_info *wlc);
 329 void brcms_c_start_station(struct brcms_c_info *wlc, u8 *addr);
 330 void brcms_c_start_ap(struct brcms_c_info *wlc, u8 *addr, const u8 *bssid,
 331                       u8 *ssid, size_t ssid_len);
 332 void brcms_c_start_adhoc(struct brcms_c_info *wlc, u8 *addr);
 333 void brcms_c_update_beacon(struct brcms_c_info *wlc);
 334 void brcms_c_set_new_beacon(struct brcms_c_info *wlc, struct sk_buff *beacon,
 335                             u16 tim_offset, u16 dtim_period);
 336 void brcms_c_set_new_probe_resp(struct brcms_c_info *wlc,
 337                                 struct sk_buff *probe_resp);
 338 void brcms_c_enable_probe_resp(struct brcms_c_info *wlc, bool enable);
 339 void brcms_c_set_ssid(struct brcms_c_info *wlc, u8 *ssid, size_t ssid_len);
 340
 341 #endif                          /* _BRCM_PUB_H_ */