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

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

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