LXR linux/drivers/net/wireless/hostap/hostap

   1#ifndef HOSTAP_WLAN_H
   2#define HOSTAP_WLAN_H
   3
   4#include <linux/interrupt.h>
   5#include <linux/wireless.h>
   6#include <linux/netdevice.h>
   7#include <linux/etherdevice.h>
   8#include <linux/mutex.h>
   9#include <net/iw_handler.h>
  10#include <net/ieee80211_radiotap.h>
  11#include <net/lib80211.h>
  12
  13#include "hostap_config.h"
  14#include "hostap_common.h"
  15
  16#define MAX_PARM_DEVICES 8
  17#define PARM_MIN_MAX "1-" __MODULE_STRING(MAX_PARM_DEVICES)
  18#define DEF_INTS -1, -1, -1, -1, -1, -1, -1
  19#define GET_INT_PARM(var,idx) var[var[idx] < 0 ? 0 : idx]
  20
  21
  22/* Specific skb->protocol value that indicates that the packet already contains
  23 * txdesc header.
  24 * FIX: This might need own value that would be allocated especially for Prism2
  25 * txdesc; ETH_P_CONTROL is commented as "Card specific control frames".
  26 * However, these skb's should have only minimal path in the kernel side since
  27 * prism2_send_mgmt() sends these with dev_queue_xmit() to prism2_tx(). */
  28#define ETH_P_HOSTAP ETH_P_CONTROL
  29
  30/* ARPHRD_IEEE80211_PRISM uses a bloated version of Prism2 RX frame header
  31 * (from linux-wlan-ng) */
  32struct linux_wlan_ng_val {
  33        u32 did;
  34        u16 status, len;
  35        u32 data;
  36} __packed;
  37
  38struct linux_wlan_ng_prism_hdr {
  39        u32 msgcode, msglen;
  40        char devname[16];
  41        struct linux_wlan_ng_val hosttime, mactime, channel, rssi, sq, signal,
  42                noise, rate, istx, frmlen;
  43} __packed;
  44
  45struct linux_wlan_ng_cap_hdr {
  46        __be32 version;
  47        __be32 length;
  48        __be64 mactime;
  49        __be64 hosttime;
  50        __be32 phytype;
  51        __be32 channel;
  52        __be32 datarate;
  53        __be32 antenna;
  54        __be32 priority;
  55        __be32 ssi_type;
  56        __be32 ssi_signal;
  57        __be32 ssi_noise;
  58        __be32 preamble;
  59        __be32 encoding;
  60} __packed;
  61
  62struct hostap_radiotap_rx {
  63        struct ieee80211_radiotap_header hdr;
  64        __le64 tsft;
  65        u8 rate;
  66        u8 padding;
  67        __le16 chan_freq;
  68        __le16 chan_flags;
  69        s8 dbm_antsignal;
  70        s8 dbm_antnoise;
  71} __packed;
  72
  73#define LWNG_CAP_DID_BASE   (4 | (1 << 6)) /* section 4, group 1 */
  74#define LWNG_CAPHDR_VERSION 0x80211001
  75
  76struct hfa384x_rx_frame {
  77        /* HFA384X RX frame descriptor */
  78        __le16 status; /* HFA384X_RX_STATUS_ flags */
  79        __le32 time; /* timestamp, 1 microsecond resolution */
  80        u8 silence; /* 27 .. 154; seems to be 0 */
  81        u8 signal; /* 27 .. 154 */
  82        u8 rate; /* 10, 20, 55, or 110 */
  83        u8 rxflow;
  84        __le32 reserved;
  85
  86        /* 802.11 */
  87        __le16 frame_control;
  88        __le16 duration_id;
  89        u8 addr1[ETH_ALEN];
  90        u8 addr2[ETH_ALEN];
  91        u8 addr3[ETH_ALEN];
  92        __le16 seq_ctrl;
  93        u8 addr4[ETH_ALEN];
  94        __le16 data_len;
  95
  96        /* 802.3 */
  97        u8 dst_addr[ETH_ALEN];
  98        u8 src_addr[ETH_ALEN];
  99        __be16 len;
 100
 101        /* followed by frame data; max 2304 bytes */
 102} __packed;
 103
 104
 105struct hfa384x_tx_frame {
 106        /* HFA384X TX frame descriptor */
 107        __le16 status; /* HFA384X_TX_STATUS_ flags */
 108        __le16 reserved1;
 109        __le16 reserved2;
 110        __le32 sw_support;
 111        u8 retry_count; /* not yet implemented */
 112        u8 tx_rate; /* Host AP only; 0 = firmware, or 10, 20, 55, 110 */
 113        __le16 tx_control; /* HFA384X_TX_CTRL_ flags */
 114
 115        /* 802.11 */
 116        __le16 frame_control; /* parts not used */
 117        __le16 duration_id;
 118        u8 addr1[ETH_ALEN];
 119        u8 addr2[ETH_ALEN]; /* filled by firmware */
 120        u8 addr3[ETH_ALEN];
 121        __le16 seq_ctrl; /* filled by firmware */
 122        u8 addr4[ETH_ALEN];
 123        __le16 data_len;
 124
 125        /* 802.3 */
 126        u8 dst_addr[ETH_ALEN];
 127        u8 src_addr[ETH_ALEN];
 128        __be16 len;
 129
 130        /* followed by frame data; max 2304 bytes */
 131} __packed;
 132
 133
 134struct hfa384x_rid_hdr
 135{
 136        __le16 len;
 137        __le16 rid;
 138} __packed;
 139
 140
 141/* Macro for converting signal levels (range 27 .. 154) to wireless ext
 142 * dBm value with some accuracy */
 143#define HFA384X_LEVEL_TO_dBm(v) 0x100 + (v) * 100 / 255 - 100
 144
 145#define HFA384X_LEVEL_TO_dBm_sign(v) (v) * 100 / 255 - 100
 146
 147struct hfa384x_scan_request {
 148        __le16 channel_list;
 149        __le16 txrate; /* HFA384X_RATES_* */
 150} __packed;
 151
 152struct hfa384x_hostscan_request {
 153        __le16 channel_list;
 154        __le16 txrate;
 155        __le16 target_ssid_len;
 156        u8 target_ssid[32];
 157} __packed;
 158
 159struct hfa384x_join_request {
 160        u8 bssid[ETH_ALEN];
 161        __le16 channel;
 162} __packed;
 163
 164struct hfa384x_info_frame {
 165        __le16 len;
 166        __le16 type;
 167} __packed;
 168
 169struct hfa384x_comm_tallies {
 170        __le16 tx_unicast_frames;
 171        __le16 tx_multicast_frames;
 172        __le16 tx_fragments;
 173        __le16 tx_unicast_octets;
 174        __le16 tx_multicast_octets;
 175        __le16 tx_deferred_transmissions;
 176        __le16 tx_single_retry_frames;
 177        __le16 tx_multiple_retry_frames;
 178        __le16 tx_retry_limit_exceeded;
 179        __le16 tx_discards;
 180        __le16 rx_unicast_frames;
 181        __le16 rx_multicast_frames;
 182        __le16 rx_fragments;
 183        __le16 rx_unicast_octets;
 184        __le16 rx_multicast_octets;
 185        __le16 rx_fcs_errors;
 186        __le16 rx_discards_no_buffer;
 187        __le16 tx_discards_wrong_sa;
 188        __le16 rx_discards_wep_undecryptable;
 189        __le16 rx_message_in_msg_fragments;
 190        __le16 rx_message_in_bad_msg_fragments;
 191} __packed;
 192
 193struct hfa384x_comm_tallies32 {
 194        __le32 tx_unicast_frames;
 195        __le32 tx_multicast_frames;
 196        __le32 tx_fragments;
 197        __le32 tx_unicast_octets;
 198        __le32 tx_multicast_octets;
 199        __le32 tx_deferred_transmissions;
 200        __le32 tx_single_retry_frames;
 201        __le32 tx_multiple_retry_frames;
 202        __le32 tx_retry_limit_exceeded;
 203        __le32 tx_discards;
 204        __le32 rx_unicast_frames;
 205        __le32 rx_multicast_frames;
 206        __le32 rx_fragments;
 207        __le32 rx_unicast_octets;
 208        __le32 rx_multicast_octets;
 209        __le32 rx_fcs_errors;
 210        __le32 rx_discards_no_buffer;
 211        __le32 tx_discards_wrong_sa;
 212        __le32 rx_discards_wep_undecryptable;
 213        __le32 rx_message_in_msg_fragments;
 214        __le32 rx_message_in_bad_msg_fragments;
 215} __packed;
 216
 217struct hfa384x_scan_result_hdr {
 218        __le16 reserved;
 219        __le16 scan_reason;
 220#define HFA384X_SCAN_IN_PROGRESS 0 /* no results available yet */
 221#define HFA384X_SCAN_HOST_INITIATED 1
 222#define HFA384X_SCAN_FIRMWARE_INITIATED 2
 223#define HFA384X_SCAN_INQUIRY_FROM_HOST 3
 224} __packed;
 225
 226#define HFA384X_SCAN_MAX_RESULTS 32
 227
 228struct hfa384x_scan_result {
 229        __le16 chid;
 230        __le16 anl;
 231        __le16 sl;
 232        u8 bssid[ETH_ALEN];
 233        __le16 beacon_interval;
 234        __le16 capability;
 235        __le16 ssid_len;
 236        u8 ssid[32];
 237        u8 sup_rates[10];
 238        __le16 rate;
 239} __packed;
 240
 241struct hfa384x_hostscan_result {
 242        __le16 chid;
 243        __le16 anl;
 244        __le16 sl;
 245        u8 bssid[ETH_ALEN];
 246        __le16 beacon_interval;
 247        __le16 capability;
 248        __le16 ssid_len;
 249        u8 ssid[32];
 250        u8 sup_rates[10];
 251        __le16 rate;
 252        __le16 atim;
 253} __packed;
 254
 255struct comm_tallies_sums {
 256        unsigned int tx_unicast_frames;
 257        unsigned int tx_multicast_frames;
 258        unsigned int tx_fragments;
 259        unsigned int tx_unicast_octets;
 260        unsigned int tx_multicast_octets;
 261        unsigned int tx_deferred_transmissions;
 262        unsigned int tx_single_retry_frames;
 263        unsigned int tx_multiple_retry_frames;
 264        unsigned int tx_retry_limit_exceeded;
 265        unsigned int tx_discards;
 266        unsigned int rx_unicast_frames;
 267        unsigned int rx_multicast_frames;
 268        unsigned int rx_fragments;
 269        unsigned int rx_unicast_octets;
 270        unsigned int rx_multicast_octets;
 271        unsigned int rx_fcs_errors;
 272        unsigned int rx_discards_no_buffer;
 273        unsigned int tx_discards_wrong_sa;
 274        unsigned int rx_discards_wep_undecryptable;
 275        unsigned int rx_message_in_msg_fragments;
 276        unsigned int rx_message_in_bad_msg_fragments;
 277};
 278
 279
 280struct hfa384x_regs {
 281        u16 cmd;
 282        u16 evstat;
 283        u16 offset0;
 284        u16 offset1;
 285        u16 swsupport0;
 286};
 287
 288
 289#if defined(PRISM2_PCCARD) || defined(PRISM2_PLX)
 290/* I/O ports for HFA384X Controller access */
 291#define HFA384X_CMD_OFF 0x00
 292#define HFA384X_PARAM0_OFF 0x02
 293#define HFA384X_PARAM1_OFF 0x04
 294#define HFA384X_PARAM2_OFF 0x06
 295#define HFA384X_STATUS_OFF 0x08
 296#define HFA384X_RESP0_OFF 0x0A
 297#define HFA384X_RESP1_OFF 0x0C
 298#define HFA384X_RESP2_OFF 0x0E
 299#define HFA384X_INFOFID_OFF 0x10
 300#define HFA384X_CONTROL_OFF 0x14
 301#define HFA384X_SELECT0_OFF 0x18
 302#define HFA384X_SELECT1_OFF 0x1A
 303#define HFA384X_OFFSET0_OFF 0x1C
 304#define HFA384X_OFFSET1_OFF 0x1E
 305#define HFA384X_RXFID_OFF 0x20
 306#define HFA384X_ALLOCFID_OFF 0x22
 307#define HFA384X_TXCOMPLFID_OFF 0x24
 308#define HFA384X_SWSUPPORT0_OFF 0x28
 309#define HFA384X_SWSUPPORT1_OFF 0x2A
 310#define HFA384X_SWSUPPORT2_OFF 0x2C
 311#define HFA384X_EVSTAT_OFF 0x30
 312#define HFA384X_INTEN_OFF 0x32
 313#define HFA384X_EVACK_OFF 0x34
 314#define HFA384X_DATA0_OFF 0x36
 315#define HFA384X_DATA1_OFF 0x38
 316#define HFA384X_AUXPAGE_OFF 0x3A
 317#define HFA384X_AUXOFFSET_OFF 0x3C
 318#define HFA384X_AUXDATA_OFF 0x3E
 319#endif /* PRISM2_PCCARD || PRISM2_PLX */
 320
 321#ifdef PRISM2_PCI
 322/* Memory addresses for ISL3874 controller access */
 323#define HFA384X_CMD_OFF 0x00
 324#define HFA384X_PARAM0_OFF 0x04
 325#define HFA384X_PARAM1_OFF 0x08
 326#define HFA384X_PARAM2_OFF 0x0C
 327#define HFA384X_STATUS_OFF 0x10
 328#define HFA384X_RESP0_OFF 0x14
 329#define HFA384X_RESP1_OFF 0x18
 330#define HFA384X_RESP2_OFF 0x1C
 331#define HFA384X_INFOFID_OFF 0x20
 332#define HFA384X_CONTROL_OFF 0x28
 333#define HFA384X_SELECT0_OFF 0x30
 334#define HFA384X_SELECT1_OFF 0x34
 335#define HFA384X_OFFSET0_OFF 0x38
 336#define HFA384X_OFFSET1_OFF 0x3C
 337#define HFA384X_RXFID_OFF 0x40
 338#define HFA384X_ALLOCFID_OFF 0x44
 339#define HFA384X_TXCOMPLFID_OFF 0x48
 340#define HFA384X_PCICOR_OFF 0x4C
 341#define HFA384X_SWSUPPORT0_OFF 0x50
 342#define HFA384X_SWSUPPORT1_OFF 0x54
 343#define HFA384X_SWSUPPORT2_OFF 0x58
 344#define HFA384X_PCIHCR_OFF 0x5C
 345#define HFA384X_EVSTAT_OFF 0x60
 346#define HFA384X_INTEN_OFF 0x64
 347#define HFA384X_EVACK_OFF 0x68
 348#define HFA384X_DATA0_OFF 0x6C
 349#define HFA384X_DATA1_OFF 0x70
 350#define HFA384X_AUXPAGE_OFF 0x74
 351#define HFA384X_AUXOFFSET_OFF 0x78
 352#define HFA384X_AUXDATA_OFF 0x7C
 353#define HFA384X_PCI_M0_ADDRH_OFF 0x80
 354#define HFA384X_PCI_M0_ADDRL_OFF 0x84
 355#define HFA384X_PCI_M0_LEN_OFF 0x88
 356#define HFA384X_PCI_M0_CTL_OFF 0x8C
 357#define HFA384X_PCI_STATUS_OFF 0x98
 358#define HFA384X_PCI_M1_ADDRH_OFF 0xA0
 359#define HFA384X_PCI_M1_ADDRL_OFF 0xA4
 360#define HFA384X_PCI_M1_LEN_OFF 0xA8
 361#define HFA384X_PCI_M1_CTL_OFF 0xAC
 362
 363/* PCI bus master control bits (these are undocumented; based on guessing and
 364 * experimenting..) */
 365#define HFA384X_PCI_CTL_FROM_BAP (BIT(5) | BIT(1) | BIT(0))
 366#define HFA384X_PCI_CTL_TO_BAP (BIT(5) | BIT(0))
 367
 368#endif /* PRISM2_PCI */
 369
 370
 371/* Command codes for CMD reg. */
 372#define HFA384X_CMDCODE_INIT 0x00
 373#define HFA384X_CMDCODE_ENABLE 0x01
 374#define HFA384X_CMDCODE_DISABLE 0x02
 375#define HFA384X_CMDCODE_ALLOC 0x0A
 376#define HFA384X_CMDCODE_TRANSMIT 0x0B
 377#define HFA384X_CMDCODE_INQUIRE 0x11
 378#define HFA384X_CMDCODE_ACCESS 0x21
 379#define HFA384X_CMDCODE_ACCESS_WRITE (0x21 | BIT(8))
 380#define HFA384X_CMDCODE_DOWNLOAD 0x22
 381#define HFA384X_CMDCODE_READMIF 0x30
 382#define HFA384X_CMDCODE_WRITEMIF 0x31
 383#define HFA384X_CMDCODE_TEST 0x38
 384
 385#define HFA384X_CMDCODE_MASK 0x3F
 386
 387/* Test mode operations */
 388#define HFA384X_TEST_CHANGE_CHANNEL 0x08
 389#define HFA384X_TEST_MONITOR 0x0B
 390#define HFA384X_TEST_STOP 0x0F
 391#define HFA384X_TEST_CFG_BITS 0x15
 392#define HFA384X_TEST_CFG_BIT_ALC BIT(3)
 393
 394#define HFA384X_CMD_BUSY BIT(15)
 395
 396#define HFA384X_CMD_TX_RECLAIM BIT(8)
 397
 398#define HFA384X_OFFSET_ERR BIT(14)
 399#define HFA384X_OFFSET_BUSY BIT(15)
 400
 401
 402/* ProgMode for download command */
 403#define HFA384X_PROGMODE_DISABLE 0
 404#define HFA384X_PROGMODE_ENABLE_VOLATILE 1
 405#define HFA384X_PROGMODE_ENABLE_NON_VOLATILE 2
 406#define HFA384X_PROGMODE_PROGRAM_NON_VOLATILE 3
 407
 408#define HFA384X_AUX_MAGIC0 0xfe01
 409#define HFA384X_AUX_MAGIC1 0xdc23
 410#define HFA384X_AUX_MAGIC2 0xba45
 411
 412#define HFA384X_AUX_PORT_DISABLED 0
 413#define HFA384X_AUX_PORT_DISABLE BIT(14)
 414#define HFA384X_AUX_PORT_ENABLE BIT(15)
 415#define HFA384X_AUX_PORT_ENABLED (BIT(14) | BIT(15))
 416#define HFA384X_AUX_PORT_MASK (BIT(14) | BIT(15))
 417
 418#define PRISM2_PDA_SIZE 1024
 419
 420
 421/* Events; EvStat, Interrupt mask (IntEn), and acknowledge bits (EvAck) */
 422#define HFA384X_EV_TICK BIT(15)
 423#define HFA384X_EV_WTERR BIT(14)
 424#define HFA384X_EV_INFDROP BIT(13)
 425#ifdef PRISM2_PCI
 426#define HFA384X_EV_PCI_M1 BIT(9)
 427#define HFA384X_EV_PCI_M0 BIT(8)
 428#endif /* PRISM2_PCI */
 429#define HFA384X_EV_INFO BIT(7)
 430#define HFA384X_EV_DTIM BIT(5)
 431#define HFA384X_EV_CMD BIT(4)
 432#define HFA384X_EV_ALLOC BIT(3)
 433#define HFA384X_EV_TXEXC BIT(2)
 434#define HFA384X_EV_TX BIT(1)
 435#define HFA384X_EV_RX BIT(0)
 436
 437
 438/* HFA384X Information frames */
 439#define HFA384X_INFO_HANDOVERADDR 0xF000 /* AP f/w ? */
 440#define HFA384X_INFO_HANDOVERDEAUTHADDR 0xF001 /* AP f/w 1.3.7 */
 441#define HFA384X_INFO_COMMTALLIES 0xF100
 442#define HFA384X_INFO_SCANRESULTS 0xF101
 443#define HFA384X_INFO_CHANNELINFORESULTS 0xF102 /* AP f/w only */
 444#define HFA384X_INFO_HOSTSCANRESULTS 0xF103
 445#define HFA384X_INFO_LINKSTATUS 0xF200
 446#define HFA384X_INFO_ASSOCSTATUS 0xF201 /* ? */
 447#define HFA384X_INFO_AUTHREQ 0xF202 /* ? */
 448#define HFA384X_INFO_PSUSERCNT 0xF203 /* ? */
 449#define HFA384X_INFO_KEYIDCHANGED 0xF204 /* ? */
 450
 451enum { HFA384X_LINKSTATUS_CONNECTED = 1,
 452       HFA384X_LINKSTATUS_DISCONNECTED = 2,
 453       HFA384X_LINKSTATUS_AP_CHANGE = 3,
 454       HFA384X_LINKSTATUS_AP_OUT_OF_RANGE = 4,
 455       HFA384X_LINKSTATUS_AP_IN_RANGE = 5,
 456       HFA384X_LINKSTATUS_ASSOC_FAILED = 6 };
 457
 458enum { HFA384X_PORTTYPE_BSS = 1, HFA384X_PORTTYPE_WDS = 2,
 459       HFA384X_PORTTYPE_PSEUDO_IBSS = 3, HFA384X_PORTTYPE_IBSS = 0,
 460       HFA384X_PORTTYPE_HOSTAP = 6 };
 461
 462#define HFA384X_RATES_1MBPS BIT(0)
 463#define HFA384X_RATES_2MBPS BIT(1)
 464#define HFA384X_RATES_5MBPS BIT(2)
 465#define HFA384X_RATES_11MBPS BIT(3)
 466
 467#define HFA384X_ROAMING_FIRMWARE 1
 468#define HFA384X_ROAMING_HOST 2
 469#define HFA384X_ROAMING_DISABLED 3
 470
 471#define HFA384X_WEPFLAGS_PRIVACYINVOKED BIT(0)
 472#define HFA384X_WEPFLAGS_EXCLUDEUNENCRYPTED BIT(1)
 473#define HFA384X_WEPFLAGS_HOSTENCRYPT BIT(4)
 474#define HFA384X_WEPFLAGS_HOSTDECRYPT BIT(7)
 475
 476#define HFA384X_RX_STATUS_MSGTYPE (BIT(15) | BIT(14) | BIT(13))
 477#define HFA384X_RX_STATUS_PCF BIT(12)
 478#define HFA384X_RX_STATUS_MACPORT (BIT(10) | BIT(9) | BIT(8))
 479#define HFA384X_RX_STATUS_UNDECR BIT(1)
 480#define HFA384X_RX_STATUS_FCSERR BIT(0)
 481
 482#define HFA384X_RX_STATUS_GET_MSGTYPE(s) \
 483(((s) & HFA384X_RX_STATUS_MSGTYPE) >> 13)
 484#define HFA384X_RX_STATUS_GET_MACPORT(s) \
 485(((s) & HFA384X_RX_STATUS_MACPORT) >> 8)
 486
 487enum { HFA384X_RX_MSGTYPE_NORMAL = 0, HFA384X_RX_MSGTYPE_RFC1042 = 1,
 488       HFA384X_RX_MSGTYPE_BRIDGETUNNEL = 2, HFA384X_RX_MSGTYPE_MGMT = 4 };
 489
 490
 491#define HFA384X_TX_CTRL_ALT_RTRY BIT(5)
 492#define HFA384X_TX_CTRL_802_11 BIT(3)
 493#define HFA384X_TX_CTRL_802_3 0
 494#define HFA384X_TX_CTRL_TX_EX BIT(2)
 495#define HFA384X_TX_CTRL_TX_OK BIT(1)
 496
 497#define HFA384X_TX_STATUS_RETRYERR BIT(0)
 498#define HFA384X_TX_STATUS_AGEDERR BIT(1)
 499#define HFA384X_TX_STATUS_DISCON BIT(2)
 500#define HFA384X_TX_STATUS_FORMERR BIT(3)
 501
 502/* HFA3861/3863 (BBP) Control Registers */
 503#define HFA386X_CR_TX_CONFIGURE 0x12 /* CR9 */
 504#define HFA386X_CR_RX_CONFIGURE 0x14 /* CR10 */
 505#define HFA386X_CR_A_D_TEST_MODES2 0x1A /* CR13 */
 506#define HFA386X_CR_MANUAL_TX_POWER 0x3E /* CR31 */
 507#define HFA386X_CR_MEASURED_TX_POWER 0x74 /* CR58 */
 508
 509
 510#ifdef __KERNEL__
 511
 512#define PRISM2_TXFID_COUNT 8
 513#define PRISM2_DATA_MAXLEN 2304
 514#define PRISM2_TXFID_LEN (PRISM2_DATA_MAXLEN + sizeof(struct hfa384x_tx_frame))
 515#define PRISM2_TXFID_EMPTY 0xffff
 516#define PRISM2_TXFID_RESERVED 0xfffe
 517#define PRISM2_DUMMY_FID 0xffff
 518#define MAX_SSID_LEN 32
 519#define MAX_NAME_LEN 32 /* this is assumed to be equal to MAX_SSID_LEN */
 520
 521#define PRISM2_DUMP_RX_HDR BIT(0)
 522#define PRISM2_DUMP_TX_HDR BIT(1)
 523#define PRISM2_DUMP_TXEXC_HDR BIT(2)
 524
 525struct hostap_tx_callback_info {
 526        u16 idx;
 527        void (*func)(struct sk_buff *, int ok, void *);
 528        void *data;
 529        struct hostap_tx_callback_info *next;
 530};
 531
 532
 533/* IEEE 802.11 requires that STA supports concurrent reception of at least
 534 * three fragmented frames. This define can be increased to support more
 535 * concurrent frames, but it should be noted that each entry can consume about
 536 * 2 kB of RAM and increasing cache size will slow down frame reassembly. */
 537#define PRISM2_FRAG_CACHE_LEN 4
 538
 539struct prism2_frag_entry {
 540        unsigned long first_frag_time;
 541        unsigned int seq;
 542        unsigned int last_frag;
 543        struct sk_buff *skb;
 544        u8 src_addr[ETH_ALEN];
 545        u8 dst_addr[ETH_ALEN];
 546};
 547
 548
 549struct hostap_cmd_queue {
 550        struct list_head list;
 551        wait_queue_head_t compl;
 552        volatile enum { CMD_SLEEP, CMD_CALLBACK, CMD_COMPLETED } type;
 553        void (*callback)(struct net_device *dev, long context, u16 resp0,
 554                         u16 res);
 555        long context;
 556        u16 cmd, param0, param1;
 557        u16 resp0, res;
 558        volatile int issued, issuing;
 559
 560        atomic_t usecnt;
 561        int del_req;
 562};
 563
 564/* options for hw_shutdown */
 565#define HOSTAP_HW_NO_DISABLE BIT(0)
 566#define HOSTAP_HW_ENABLE_CMDCOMPL BIT(1)
 567
 568typedef struct local_info local_info_t;
 569
 570struct prism2_helper_functions {
 571        /* these functions are defined in hardware model specific files
 572         * (hostap_{cs,plx,pci}.c */
 573        int (*card_present)(local_info_t *local);
 574        void (*cor_sreset)(local_info_t *local);
 575        void (*genesis_reset)(local_info_t *local, int hcr);
 576
 577        /* the following functions are from hostap_hw.c, but they may have some
 578         * hardware model specific code */
 579
 580        /* FIX: low-level commands like cmd might disappear at some point to
 581         * make it easier to change them if needed (e.g., cmd would be replaced
 582         * with write_mif/read_mif/testcmd/inquire); at least get_rid and
 583         * set_rid might move to hostap_{cs,plx,pci}.c */
 584        int (*cmd)(struct net_device *dev, u16 cmd, u16 param0, u16 *param1,
 585                   u16 *resp0);
 586        void (*read_regs)(struct net_device *dev, struct hfa384x_regs *regs);
 587        int (*get_rid)(struct net_device *dev, u16 rid, void *buf, int len,
 588                       int exact_len);
 589        int (*set_rid)(struct net_device *dev, u16 rid, void *buf, int len);
 590        int (*hw_enable)(struct net_device *dev, int initial);
 591        int (*hw_config)(struct net_device *dev, int initial);
 592        void (*hw_reset)(struct net_device *dev);
 593        void (*hw_shutdown)(struct net_device *dev, int no_disable);
 594        int (*reset_port)(struct net_device *dev);
 595        void (*schedule_reset)(local_info_t *local);
 596        int (*download)(local_info_t *local,
 597                        struct prism2_download_param *param);
 598        int (*tx)(struct sk_buff *skb, struct net_device *dev);
 599        int (*set_tim)(struct net_device *dev, int aid, int set);
 600        const struct file_operations *read_aux_fops;
 601
 602        int need_tx_headroom; /* number of bytes of headroom needed before
 603                               * IEEE 802.11 header */
 604        enum { HOSTAP_HW_PCCARD, HOSTAP_HW_PLX, HOSTAP_HW_PCI } hw_type;
 605};
 606
 607
 608struct prism2_download_data {
 609        u32 dl_cmd;
 610        u32 start_addr;
 611        u32 num_areas;
 612        struct prism2_download_data_area {
 613                u32 addr; /* wlan card address */
 614                u32 len;
 615                u8 *data; /* allocated data */
 616        } data[0];
 617};
 618
 619
 620#define HOSTAP_MAX_BSS_COUNT 64
 621#define MAX_WPA_IE_LEN 64
 622
 623struct hostap_bss_info {
 624        struct list_head list;
 625        unsigned long last_update;
 626        unsigned int count;
 627        u8 bssid[ETH_ALEN];
 628        u16 capab_info;
 629        u8 ssid[32];
 630        size_t ssid_len;
 631        u8 wpa_ie[MAX_WPA_IE_LEN];
 632        size_t wpa_ie_len;
 633        u8 rsn_ie[MAX_WPA_IE_LEN];
 634        size_t rsn_ie_len;
 635        int chan;
 636        int included;
 637};
 638
 639
 640/* Per radio private Host AP data - shared by all net devices interfaces used
 641 * by each radio (wlan#, wlan#ap, wlan#sta, WDS).
 642 * ((struct hostap_interface *) netdev_priv(dev))->local points to this
 643 * structure. */
 644struct local_info {
 645        struct module *hw_module;
 646        int card_idx;
 647        int dev_enabled;
 648        int master_dev_auto_open; /* was master device opened automatically */
 649        int num_dev_open; /* number of open devices */
 650        struct net_device *dev; /* master radio device */
 651        struct net_device *ddev; /* main data device */
 652        struct list_head hostap_interfaces; /* Host AP interface list (contains
 653                                             * struct hostap_interface entries)
 654                                             */
 655        rwlock_t iface_lock; /* hostap_interfaces read lock; use write lock
 656                              * when removing entries from the list.
 657                              * TX and RX paths can use read lock. */
 658        spinlock_t cmdlock, baplock, lock, irq_init_lock;
 659        struct mutex rid_bap_mtx;
 660        u16 infofid; /* MAC buffer id for info frame */
 661        /* txfid, intransmitfid, next_txtid, and next_alloc are protected by
 662         * txfidlock */
 663        spinlock_t txfidlock;
 664        int txfid_len; /* length of allocated TX buffers */
 665        u16 txfid[PRISM2_TXFID_COUNT]; /* buffer IDs for TX frames */
 666        /* buffer IDs for intransmit frames or PRISM2_TXFID_EMPTY if
 667         * corresponding txfid is free for next TX frame */
 668        u16 intransmitfid[PRISM2_TXFID_COUNT];
 669        int next_txfid; /* index to the next txfid to be checked for
 670                         * availability */
 671        int next_alloc; /* index to the next intransmitfid to be checked for
 672                         * allocation events */
 673
 674        /* bitfield for atomic bitops */
 675#define HOSTAP_BITS_TRANSMIT 0
 676#define HOSTAP_BITS_BAP_TASKLET 1
 677#define HOSTAP_BITS_BAP_TASKLET2 2
 678        unsigned long bits;
 679
 680        struct ap_data *ap;
 681
 682        char essid[MAX_SSID_LEN + 1];
 683        char name[MAX_NAME_LEN + 1];
 684        int name_set;
 685        u16 channel_mask; /* mask of allowed channels */
 686        u16 scan_channel_mask; /* mask of channels to be scanned */
 687        struct comm_tallies_sums comm_tallies;
 688        struct proc_dir_entry *proc;
 689        int iw_mode; /* operating mode (IW_MODE_*) */
 690        int pseudo_adhoc; /* 0: IW_MODE_ADHOC is real 802.11 compliant IBSS
 691                           * 1: IW_MODE_ADHOC is "pseudo IBSS" */
 692        char bssid[ETH_ALEN];
 693        int channel;
 694        int beacon_int;
 695        int dtim_period;
 696        int mtu;
 697        int frame_dump; /* dump RX/TX frame headers, PRISM2_DUMP_ flags */
 698        int fw_tx_rate_control;
 699        u16 tx_rate_control;
 700        u16 basic_rates;
 701        int hw_resetting;
 702        int hw_ready;
 703        int hw_reset_tries; /* how many times reset has been tried */
 704        int hw_downloading;
 705        int shutdown;
 706        int pri_only;
 707        int no_pri; /* no PRI f/w present */
 708        int sram_type; /* 8 = x8 SRAM, 16 = x16 SRAM, -1 = unknown */
 709
 710        enum {
 711                PRISM2_TXPOWER_AUTO = 0, PRISM2_TXPOWER_OFF,
 712                PRISM2_TXPOWER_FIXED, PRISM2_TXPOWER_UNKNOWN
 713        } txpower_type;
 714        int txpower; /* if txpower_type == PRISM2_TXPOWER_FIXED */
 715
 716        /* command queue for hfa384x_cmd(); protected with cmdlock */
 717        struct list_head cmd_queue;
 718        /* max_len for cmd_queue; in addition, cmd_callback can use two
 719         * additional entries to prevent sleeping commands from stopping
 720         * transmits */
 721#define HOSTAP_CMD_QUEUE_MAX_LEN 16
 722        int cmd_queue_len; /* number of entries in cmd_queue */
 723
 724        /* if card timeout is detected in interrupt context, reset_queue is
 725         * used to schedule card reseting to be done in user context */
 726        struct work_struct reset_queue;
 727
 728        /* For scheduling a change of the promiscuous mode RID */
 729        int is_promisc;
 730        struct work_struct set_multicast_list_queue;
 731
 732        struct work_struct set_tim_queue;
 733        struct list_head set_tim_list;
 734        spinlock_t set_tim_lock;
 735
 736        int wds_max_connections;
 737        int wds_connections;
 738#define HOSTAP_WDS_BROADCAST_RA BIT(0)
 739#define HOSTAP_WDS_AP_CLIENT BIT(1)
 740#define HOSTAP_WDS_STANDARD_FRAME BIT(2)
 741        u32 wds_type;
 742        u16 tx_control; /* flags to be used in TX description */
 743        int manual_retry_count; /* -1 = use f/w default; otherwise retry count
 744                                 * to be used with all frames */
 745
 746        struct iw_statistics wstats;
 747        unsigned long scan_timestamp; /* Time started to scan */
 748        enum {
 749                PRISM2_MONITOR_80211 = 0, PRISM2_MONITOR_PRISM = 1,
 750                PRISM2_MONITOR_CAPHDR = 2, PRISM2_MONITOR_RADIOTAP = 3
 751        } monitor_type;
 752        int monitor_allow_fcserr;
 753
 754        int hostapd; /* whether user space daemon, hostapd, is used for AP
 755                      * management */
 756        int hostapd_sta; /* whether hostapd is used with an extra STA interface
 757                          */
 758        struct net_device *apdev;
 759        struct net_device_stats apdevstats;
 760
 761        char assoc_ap_addr[ETH_ALEN];
 762        struct net_device *stadev;
 763        struct net_device_stats stadevstats;
 764
 765#define WEP_KEYS 4
 766#define WEP_KEY_LEN 13
 767        struct lib80211_crypt_info crypt_info;
 768
 769        int open_wep; /* allow unencrypted frames */
 770        int host_encrypt;
 771        int host_decrypt;
 772        int privacy_invoked; /* force privacy invoked flag even if no keys are
 773                              * configured */
 774        int fw_encrypt_ok; /* whether firmware-based WEP encrypt is working
 775                            * in Host AP mode (STA f/w 1.4.9 or newer) */
 776        int bcrx_sta_key; /* use individual keys to override default keys even
 777                           * with RX of broad/multicast frames */
 778
 779        struct prism2_frag_entry frag_cache[PRISM2_FRAG_CACHE_LEN];
 780        unsigned int frag_next_idx;
 781
 782        int ieee_802_1x; /* is IEEE 802.1X used */
 783
 784        int antsel_tx, antsel_rx;
 785        int rts_threshold; /* dot11RTSThreshold */
 786        int fragm_threshold; /* dot11FragmentationThreshold */
 787        int auth_algs; /* PRISM2_AUTH_ flags */
 788
 789        int enh_sec; /* cnfEnhSecurity options (broadcast SSID hide/ignore) */
 790        int tallies32; /* 32-bit tallies in use */
 791
 792        struct prism2_helper_functions *func;
 793
 794        u8 *pda;
 795        int fw_ap;
 796#define PRISM2_FW_VER(major, minor, variant) \
 797(((major) << 16) | ((minor) << 8) | variant)
 798        u32 sta_fw_ver;
 799
 800        /* Tasklets for handling hardware IRQ related operations outside hw IRQ
 801         * handler */
 802        struct tasklet_struct bap_tasklet;
 803
 804        struct tasklet_struct info_tasklet;
 805        struct sk_buff_head info_list; /* info frames as skb's for
 806                                        * info_tasklet */
 807
 808        struct hostap_tx_callback_info *tx_callback; /* registered TX callbacks
 809                                                      */
 810
 811        struct tasklet_struct rx_tasklet;
 812        struct sk_buff_head rx_list;
 813
 814        struct tasklet_struct sta_tx_exc_tasklet;
 815        struct sk_buff_head sta_tx_exc_list;
 816
 817        int host_roaming;
 818        unsigned long last_join_time; /* time of last JoinRequest */
 819        struct hfa384x_hostscan_result *last_scan_results;
 820        int last_scan_results_count;
 821        enum { PRISM2_SCAN, PRISM2_HOSTSCAN } last_scan_type;
 822        struct work_struct info_queue;
 823        unsigned long pending_info; /* bit field of pending info_queue items */
 824#define PRISM2_INFO_PENDING_LINKSTATUS 0
 825#define PRISM2_INFO_PENDING_SCANRESULTS 1
 826        int prev_link_status; /* previous received LinkStatus info */
 827        int prev_linkstatus_connected;
 828        u8 preferred_ap[ETH_ALEN]; /* use this AP if possible */
 829
 830#ifdef PRISM2_CALLBACK
 831        void *callback_data; /* Can be used in callbacks; e.g., allocate
 832                              * on enable event and free on disable event.
 833                              * Host AP driver code does not touch this. */
 834#endif /* PRISM2_CALLBACK */
 835
 836        wait_queue_head_t hostscan_wq;
 837
 838        /* Passive scan in Host AP mode */
 839        struct timer_list passive_scan_timer;
 840        int passive_scan_interval; /* in seconds, 0 = disabled */
 841        int passive_scan_channel;
 842        enum { PASSIVE_SCAN_WAIT, PASSIVE_SCAN_LISTEN } passive_scan_state;
 843
 844        struct timer_list tick_timer;
 845        unsigned long last_tick_timer;
 846        unsigned int sw_tick_stuck;
 847
 848        /* commsQuality / dBmCommsQuality data from periodic polling; only
 849         * valid for Managed and Ad-hoc modes */
 850        unsigned long last_comms_qual_update;
 851        int comms_qual; /* in some odd unit.. */
 852        int avg_signal; /* in dB (note: negative) */
 853        int avg_noise; /* in dB (note: negative) */
 854        struct work_struct comms_qual_update;
 855
 856        /* RSSI to dBm adjustment (for RX descriptor fields) */
 857        int rssi_to_dBm; /* subtract from RSSI to get approximate dBm value */
 858
 859        /* BSS list / protected by local->lock */
 860        struct list_head bss_list;
 861        int num_bss_info;
 862        int wpa; /* WPA support enabled */
 863        int tkip_countermeasures;
 864        int drop_unencrypted;
 865        /* Generic IEEE 802.11 info element to be added to
 866         * ProbeResp/Beacon/(Re)AssocReq */
 867        u8 *generic_elem;
 868        size_t generic_elem_len;
 869
 870#ifdef PRISM2_DOWNLOAD_SUPPORT
 871        /* Persistent volatile download data */
 872        struct prism2_download_data *dl_pri;
 873        struct prism2_download_data *dl_sec;
 874#endif /* PRISM2_DOWNLOAD_SUPPORT */
 875
 876#ifdef PRISM2_IO_DEBUG
 877#define PRISM2_IO_DEBUG_SIZE 10000
 878        u32 io_debug[PRISM2_IO_DEBUG_SIZE];
 879        int io_debug_head;
 880        int io_debug_enabled;
 881#endif /* PRISM2_IO_DEBUG */
 882
 883        /* Pointer to hardware model specific (cs,pci,plx) private data. */
 884        void *hw_priv;
 885};
 886
 887
 888/* Per interface private Host AP data
 889 * Allocated for each net device that Host AP uses (wlan#, wlan#ap, wlan#sta,
 890 * WDS) and netdev_priv(dev) points to this structure. */
 891struct hostap_interface {
 892        struct list_head list; /* list entry in Host AP interface list */
 893        struct net_device *dev; /* pointer to this device */
 894        struct local_info *local; /* pointer to shared private data */
 895        struct net_device_stats stats;
 896        struct iw_spy_data spy_data; /* iwspy support */
 897        struct iw_public_data wireless_data;
 898
 899        enum {
 900                HOSTAP_INTERFACE_MASTER,
 901                HOSTAP_INTERFACE_MAIN,
 902                HOSTAP_INTERFACE_AP,
 903                HOSTAP_INTERFACE_STA,
 904                HOSTAP_INTERFACE_WDS,
 905        } type;
 906
 907        union {
 908                struct hostap_interface_wds {
 909                        u8 remote_addr[ETH_ALEN];
 910                } wds;
 911        } u;
 912};
 913
 914
 915#define HOSTAP_SKB_TX_DATA_MAGIC 0xf08a36a2
 916
 917/*
 918 * TX meta data - stored in skb->cb buffer, so this must not be increased over
 919 * the 48-byte limit.
 920 * THE PADDING THIS STARTS WITH IS A HORRIBLE HACK THAT SHOULD NOT LIVE
 921 * TO SEE THE DAY.
 922 */
 923struct hostap_skb_tx_data {
 924        unsigned int __padding_for_default_qdiscs;
 925        u32 magic; /* HOSTAP_SKB_TX_DATA_MAGIC */
 926        u8 rate; /* transmit rate */
 927#define HOSTAP_TX_FLAGS_WDS BIT(0)
 928#define HOSTAP_TX_FLAGS_BUFFERED_FRAME BIT(1)
 929#define HOSTAP_TX_FLAGS_ADD_MOREDATA BIT(2)
 930        u8 flags; /* HOSTAP_TX_FLAGS_* */
 931        u16 tx_cb_idx;
 932        struct hostap_interface *iface;
 933        unsigned long jiffies; /* queueing timestamp */
 934        unsigned short ethertype;
 935};
 936
 937
 938#ifndef PRISM2_NO_DEBUG
 939
 940#define DEBUG_FID BIT(0)
 941#define DEBUG_PS BIT(1)
 942#define DEBUG_FLOW BIT(2)
 943#define DEBUG_AP BIT(3)
 944#define DEBUG_HW BIT(4)
 945#define DEBUG_EXTRA BIT(5)
 946#define DEBUG_EXTRA2 BIT(6)
 947#define DEBUG_PS2 BIT(7)
 948#define DEBUG_MASK (DEBUG_PS | DEBUG_AP | DEBUG_HW | DEBUG_EXTRA)
 949#define PDEBUG(n, args...) \
 950do { if ((n) & DEBUG_MASK) printk(KERN_DEBUG args); } while (0)
 951#define PDEBUG2(n, args...) \
 952do { if ((n) & DEBUG_MASK) printk(args); } while (0)
 953
 954#else /* PRISM2_NO_DEBUG */
 955
 956#define PDEBUG(n, args...)
 957#define PDEBUG2(n, args...)
 958
 959#endif /* PRISM2_NO_DEBUG */
 960
 961enum { BAP0 = 0, BAP1 = 1 };
 962
 963#define PRISM2_IO_DEBUG_CMD_INB 0
 964#define PRISM2_IO_DEBUG_CMD_INW 1
 965#define PRISM2_IO_DEBUG_CMD_INSW 2
 966#define PRISM2_IO_DEBUG_CMD_OUTB 3
 967#define PRISM2_IO_DEBUG_CMD_OUTW 4
 968#define PRISM2_IO_DEBUG_CMD_OUTSW 5
 969#define PRISM2_IO_DEBUG_CMD_ERROR 6
 970#define PRISM2_IO_DEBUG_CMD_INTERRUPT 7
 971
 972#ifdef PRISM2_IO_DEBUG
 973
 974#define PRISM2_IO_DEBUG_ENTRY(cmd, reg, value) \
 975(((cmd) << 24) | ((reg) << 16) | value)
 976
 977static inline void prism2_io_debug_add(struct net_device *dev, int cmd,
 978                                       int reg, int value)
 979{
 980        struct hostap_interface *iface = netdev_priv(dev);
 981        local_info_t *local = iface->local;
 982
 983        if (!local->io_debug_enabled)
 984                return;
 985
 986        local->io_debug[local->io_debug_head] = jiffies & 0xffffffff;
 987        if (++local->io_debug_head >= PRISM2_IO_DEBUG_SIZE)
 988                local->io_debug_head = 0;
 989        local->io_debug[local->io_debug_head] =
 990                PRISM2_IO_DEBUG_ENTRY(cmd, reg, value);
 991        if (++local->io_debug_head >= PRISM2_IO_DEBUG_SIZE)
 992                local->io_debug_head = 0;
 993}
 994
 995
 996static inline void prism2_io_debug_error(struct net_device *dev, int err)
 997{
 998        struct hostap_interface *iface = netdev_priv(dev);
 999        local_info_t *local = iface->local;
1000        unsigned long flags;

1001
1002        if (!local->io_debug_enabled)
1003                return;
1004
1005        spin_lock_irqsave(&local->lock, flags);
1006        prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_ERROR, 0, err);
1007        if (local->io_debug_enabled == 1) {
1008                local->io_debug_enabled = 0;
1009                printk(KERN_DEBUG "%s: I/O debug stopped\n", dev->name);
1010        }
1011        spin_unlock_irqrestore(&local->lock, flags);
1012}
1013
1014#else /* PRISM2_IO_DEBUG */
1015
1016static inline void prism2_io_debug_add(struct net_device *dev, int cmd,
1017                                       int reg, int value)
1018{
1019}
1020
1021static inline void prism2_io_debug_error(struct net_device *dev, int err)
1022{
1023}
1024
1025#endif /* PRISM2_IO_DEBUG */
1026
1027
1028#ifdef PRISM2_CALLBACK
1029enum {
1030        /* Called when card is enabled */
1031        PRISM2_CALLBACK_ENABLE,
1032
1033        /* Called when card is disabled */
1034        PRISM2_CALLBACK_DISABLE,
1035
1036        /* Called when RX/TX starts/ends */
1037        PRISM2_CALLBACK_RX_START, PRISM2_CALLBACK_RX_END,
1038        PRISM2_CALLBACK_TX_START, PRISM2_CALLBACK_TX_END
1039};
1040void prism2_callback(local_info_t *local, int event);
1041#else /* PRISM2_CALLBACK */
1042#define prism2_callback(d, e) do { } while (0)
1043#endif /* PRISM2_CALLBACK */
1044
1045#endif /* __KERNEL__ */
1046
1047#endif /* HOSTAP_WLAN_H */
1048