drivers/net/wireless/hostap/hostap_wlan.h

   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/mutex.h>
   8 #include <net/iw_handler.h>
   9 #include <net/ieee80211_radiotap.h>
  10 #include <net/lib80211.h>
  11
  12 #include "hostap_config.h"
  13 #include "hostap_common.h"
  14
  15 #define MAX_PARM_DEVICES 8
  16 #define PARM_MIN_MAX "1-" __MODULE_STRING(MAX_PARM_DEVICES)
  17 #define DEF_INTS -1, -1, -1, -1, -1, -1, -1
  18 #define GET_INT_PARM(var,idx) var[var[idx] < 0 ? 0 : idx]
  19
  20
  21 /* Specific skb->protocol value that indicates that the packet already contains
  22  * txdesc header.
  23  * FIX: This might need own value that would be allocated especially for Prism2
  24  * txdesc; ETH_P_CONTROL is commented as "Card specific control frames".
  25  * However, these skb's should have only minimal path in the kernel side since
  26  * prism2_send_mgmt() sends these with dev_queue_xmit() to prism2_tx(). */
  27 #define ETH_P_HOSTAP ETH_P_CONTROL
  28
  29 /* ARPHRD_IEEE80211_PRISM uses a bloated version of Prism2 RX frame header
  30  * (from linux-wlan-ng) */
  31 struct linux_wlan_ng_val {
  32         u32 did;
  33         u16 status, len;
  34         u32 data;
  35 } __packed;
  36
  37 struct linux_wlan_ng_prism_hdr {
  38         u32 msgcode, msglen;
  39         char devname[16];
  40         struct linux_wlan_ng_val hosttime, mactime, channel, rssi, sq, signal,
  41                 noise, rate, istx, frmlen;
  42 } __packed;
  43
  44 struct linux_wlan_ng_cap_hdr {
  45         __be32 version;
  46         __be32 length;
  47         __be64 mactime;
  48         __be64 hosttime;
  49         __be32 phytype;
  50         __be32 channel;
  51         __be32 datarate;
  52         __be32 antenna;
  53         __be32 priority;
  54         __be32 ssi_type;
  55         __be32 ssi_signal;
  56         __be32 ssi_noise;
  57         __be32 preamble;
  58         __be32 encoding;
  59 } __packed;
  60
  61 struct hostap_radiotap_rx {
  62         struct ieee80211_radiotap_header hdr;
  63         __le64 tsft;
  64         u8 rate;
  65         u8 padding;
  66         __le16 chan_freq;
  67         __le16 chan_flags;
  68         s8 dbm_antsignal;
  69         s8 dbm_antnoise;
  70 } __packed;
  71
  72 #define LWNG_CAP_DID_BASE   (4 | (1 << 6)) /* section 4, group 1 */
  73 #define LWNG_CAPHDR_VERSION 0x80211001
  74
  75 struct hfa384x_rx_frame {
  76         /* HFA384X RX frame descriptor */
  77         __le16 status; /* HFA384X_RX_STATUS_ flags */
  78         __le32 time; /* timestamp, 1 microsecond resolution */
  79         u8 silence; /* 27 .. 154; seems to be 0 */
  80         u8 signal; /* 27 .. 154 */
  81         u8 rate; /* 10, 20, 55, or 110 */
  82         u8 rxflow;
  83         __le32 reserved;
  84
  85         /* 802.11 */
  86         __le16 frame_control;
  87         __le16 duration_id;
  88         u8 addr1[6];
  89         u8 addr2[6];
  90         u8 addr3[6];
  91         __le16 seq_ctrl;
  92         u8 addr4[6];
  93         __le16 data_len;
  94
  95         /* 802.3 */
  96         u8 dst_addr[6];
  97         u8 src_addr[6];
  98         __be16 len;
  99
 100         /* followed by frame data; max 2304 bytes */
 101 } __packed;
 102
 103
 104 struct hfa384x_tx_frame {
 105         /* HFA384X TX frame descriptor */
 106         __le16 status; /* HFA384X_TX_STATUS_ flags */
 107         __le16 reserved1;
 108         __le16 reserved2;
 109         __le32 sw_support;
 110         u8 retry_count; /* not yet implemented */
 111         u8 tx_rate; /* Host AP only; 0 = firmware, or 10, 20, 55, 110 */
 112         __le16 tx_control; /* HFA384X_TX_CTRL_ flags */
 113
 114         /* 802.11 */
 115         __le16 frame_control; /* parts not used */
 116         __le16 duration_id;
 117         u8 addr1[6];
 118         u8 addr2[6]; /* filled by firmware */
 119         u8 addr3[6];
 120         __le16 seq_ctrl; /* filled by firmware */
 121         u8 addr4[6];
 122         __le16 data_len;
 123
 124         /* 802.3 */
 125         u8 dst_addr[6];
 126         u8 src_addr[6];
 127         __be16 len;
 128
 129         /* followed by frame data; max 2304 bytes */
 130 } __packed;
 131
 132
 133 struct hfa384x_rid_hdr
 134 {
 135         __le16 len;
 136         __le16 rid;
 137 } __packed;
 138
 139
 140 /* Macro for converting signal levels (range 27 .. 154) to wireless ext
 141  * dBm value with some accuracy */
 142 #define HFA384X_LEVEL_TO_dBm(v) 0x100 + (v) * 100 / 255 - 100
 143
 144 #define HFA384X_LEVEL_TO_dBm_sign(v) (v) * 100 / 255 - 100
 145
 146 struct hfa384x_scan_request {
 147         __le16 channel_list;
 148         __le16 txrate; /* HFA384X_RATES_* */
 149 } __packed;
 150
 151 struct hfa384x_hostscan_request {
 152         __le16 channel_list;
 153         __le16 txrate;
 154         __le16 target_ssid_len;
 155         u8 target_ssid[32];
 156 } __packed;
 157
 158 struct hfa384x_join_request {
 159         u8 bssid[6];
 160         __le16 channel;
 161 } __packed;
 162
 163 struct hfa384x_info_frame {
 164         __le16 len;
 165         __le16 type;
 166 } __packed;
 167
 168 struct hfa384x_comm_tallies {
 169         __le16 tx_unicast_frames;
 170         __le16 tx_multicast_frames;
 171         __le16 tx_fragments;
 172         __le16 tx_unicast_octets;
 173         __le16 tx_multicast_octets;
 174         __le16 tx_deferred_transmissions;
 175         __le16 tx_single_retry_frames;
 176         __le16 tx_multiple_retry_frames;
 177         __le16 tx_retry_limit_exceeded;
 178         __le16 tx_discards;
 179         __le16 rx_unicast_frames;
 180         __le16 rx_multicast_frames;
 181         __le16 rx_fragments;
 182         __le16 rx_unicast_octets;
 183         __le16 rx_multicast_octets;
 184         __le16 rx_fcs_errors;
 185         __le16 rx_discards_no_buffer;
 186         __le16 tx_discards_wrong_sa;
 187         __le16 rx_discards_wep_undecryptable;
 188         __le16 rx_message_in_msg_fragments;
 189         __le16 rx_message_in_bad_msg_fragments;
 190 } __packed;
 191
 192 struct hfa384x_comm_tallies32 {
 193         __le32 tx_unicast_frames;
 194         __le32 tx_multicast_frames;
 195         __le32 tx_fragments;
 196         __le32 tx_unicast_octets;
 197         __le32 tx_multicast_octets;
 198         __le32 tx_deferred_transmissions;
 199         __le32 tx_single_retry_frames;
 200         __le32 tx_multiple_retry_frames;
 201         __le32 tx_retry_limit_exceeded;
 202         __le32 tx_discards;
 203         __le32 rx_unicast_frames;
 204         __le32 rx_multicast_frames;
 205         __le32 rx_fragments;
 206         __le32 rx_unicast_octets;
 207         __le32 rx_multicast_octets;
 208         __le32 rx_fcs_errors;
 209         __le32 rx_discards_no_buffer;
 210         __le32 tx_discards_wrong_sa;
 211         __le32 rx_discards_wep_undecryptable;
 212         __le32 rx_message_in_msg_fragments;
 213         __le32 rx_message_in_bad_msg_fragments;
 214 } __packed;
 215
 216 struct hfa384x_scan_result_hdr {
 217         __le16 reserved;
 218         __le16 scan_reason;
 219 #define HFA384X_SCAN_IN_PROGRESS 0 /* no results available yet */
 220 #define HFA384X_SCAN_HOST_INITIATED 1
 221 #define HFA384X_SCAN_FIRMWARE_INITIATED 2
 222 #define HFA384X_SCAN_INQUIRY_FROM_HOST 3
 223 } __packed;
 224
 225 #define HFA384X_SCAN_MAX_RESULTS 32
 226
 227 struct hfa384x_scan_result {
 228         __le16 chid;
 229         __le16 anl;
 230         __le16 sl;
 231         u8 bssid[6];
 232         __le16 beacon_interval;
 233         __le16 capability;
 234         __le16 ssid_len;
 235         u8 ssid[32];
 236         u8 sup_rates[10];
 237         __le16 rate;
 238 } __packed;
 239
 240 struct hfa384x_hostscan_result {
 241         __le16 chid;
 242         __le16 anl;
 243         __le16 sl;
 244         u8 bssid[6];
 245         __le16 beacon_interval;
 246         __le16 capability;
 247         __le16 ssid_len;
 248         u8 ssid[32];
 249         u8 sup_rates[10];
 250         __le16 rate;
 251         __le16 atim;
 252 } __packed;
 253
 254 struct comm_tallies_sums {
 255         unsigned int tx_unicast_frames;
 256         unsigned int tx_multicast_frames;
 257         unsigned int tx_fragments;
 258         unsigned int tx_unicast_octets;
 259         unsigned int tx_multicast_octets;
 260         unsigned int tx_deferred_transmissions;
 261         unsigned int tx_single_retry_frames;
 262         unsigned int tx_multiple_retry_frames;
 263         unsigned int tx_retry_limit_exceeded;
 264         unsigned int tx_discards;
 265         unsigned int rx_unicast_frames;
 266         unsigned int rx_multicast_frames;
 267         unsigned int rx_fragments;
 268         unsigned int rx_unicast_octets;
 269         unsigned int rx_multicast_octets;
 270         unsigned int rx_fcs_errors;
 271         unsigned int rx_discards_no_buffer;
 272         unsigned int tx_discards_wrong_sa;
 273         unsigned int rx_discards_wep_undecryptable;
 274         unsigned int rx_message_in_msg_fragments;
 275         unsigned int rx_message_in_bad_msg_fragments;
 276 };
 277
 278
 279 struct hfa384x_regs {
 280         u16 cmd;
 281         u16 evstat;
 282         u16 offset0;
 283         u16 offset1;
 284         u16 swsupport0;
 285 };
 286
 287
 288 #if defined(PRISM2_PCCARD) || defined(PRISM2_PLX)
 289 /* I/O ports for HFA384X Controller access */
 290 #define HFA384X_CMD_OFF 0x00
 291 #define HFA384X_PARAM0_OFF 0x02
 292 #define HFA384X_PARAM1_OFF 0x04
 293 #define HFA384X_PARAM2_OFF 0x06
 294 #define HFA384X_STATUS_OFF 0x08
 295 #define HFA384X_RESP0_OFF 0x0A
 296 #define HFA384X_RESP1_OFF 0x0C
 297 #define HFA384X_RESP2_OFF 0x0E
 298 #define HFA384X_INFOFID_OFF 0x10
 299 #define HFA384X_CONTROL_OFF 0x14
 300 #define HFA384X_SELECT0_OFF 0x18
 301 #define HFA384X_SELECT1_OFF 0x1A
 302 #define HFA384X_OFFSET0_OFF 0x1C
 303 #define HFA384X_OFFSET1_OFF 0x1E
 304 #define HFA384X_RXFID_OFF 0x20
 305 #define HFA384X_ALLOCFID_OFF 0x22
 306 #define HFA384X_TXCOMPLFID_OFF 0x24
 307 #define HFA384X_SWSUPPORT0_OFF 0x28
 308 #define HFA384X_SWSUPPORT1_OFF 0x2A
 309 #define HFA384X_SWSUPPORT2_OFF 0x2C
 310 #define HFA384X_EVSTAT_OFF 0x30
 311 #define HFA384X_INTEN_OFF 0x32
 312 #define HFA384X_EVACK_OFF 0x34
 313 #define HFA384X_DATA0_OFF 0x36
 314 #define HFA384X_DATA1_OFF 0x38
 315 #define HFA384X_AUXPAGE_OFF 0x3A
 316 #define HFA384X_AUXOFFSET_OFF 0x3C
 317 #define HFA384X_AUXDATA_OFF 0x3E
 318 #endif /* PRISM2_PCCARD || PRISM2_PLX */
 319
 320 #ifdef PRISM2_PCI
 321 /* Memory addresses for ISL3874 controller access */
 322 #define HFA384X_CMD_OFF 0x00
 323 #define HFA384X_PARAM0_OFF 0x04
 324 #define HFA384X_PARAM1_OFF 0x08
 325 #define HFA384X_PARAM2_OFF 0x0C
 326 #define HFA384X_STATUS_OFF 0x10
 327 #define HFA384X_RESP0_OFF 0x14
 328 #define HFA384X_RESP1_OFF 0x18
 329 #define HFA384X_RESP2_OFF 0x1C
 330 #define HFA384X_INFOFID_OFF 0x20
 331 #define HFA384X_CONTROL_OFF 0x28
 332 #define HFA384X_SELECT0_OFF 0x30
 333 #define HFA384X_SELECT1_OFF 0x34
 334 #define HFA384X_OFFSET0_OFF 0x38
 335 #define HFA384X_OFFSET1_OFF 0x3C
 336 #define HFA384X_RXFID_OFF 0x40
 337 #define HFA384X_ALLOCFID_OFF 0x44
 338 #define HFA384X_TXCOMPLFID_OFF 0x48
 339 #define HFA384X_PCICOR_OFF 0x4C
 340 #define HFA384X_SWSUPPORT0_OFF 0x50
 341 #define HFA384X_SWSUPPORT1_OFF 0x54
 342 #define HFA384X_SWSUPPORT2_OFF 0x58
 343 #define HFA384X_PCIHCR_OFF 0x5C
 344 #define HFA384X_EVSTAT_OFF 0x60
 345 #define HFA384X_INTEN_OFF 0x64
 346 #define HFA384X_EVACK_OFF 0x68
 347 #define HFA384X_DATA0_OFF 0x6C
 348 #define HFA384X_DATA1_OFF 0x70
 349 #define HFA384X_AUXPAGE_OFF 0x74
 350 #define HFA384X_AUXOFFSET_OFF 0x78
 351 #define HFA384X_AUXDATA_OFF 0x7C
 352 #define HFA384X_PCI_M0_ADDRH_OFF 0x80
 353 #define HFA384X_PCI_M0_ADDRL_OFF 0x84
 354 #define HFA384X_PCI_M0_LEN_OFF 0x88
 355 #define HFA384X_PCI_M0_CTL_OFF 0x8C
 356 #define HFA384X_PCI_STATUS_OFF 0x98
 357 #define HFA384X_PCI_M1_ADDRH_OFF 0xA0
 358 #define HFA384X_PCI_M1_ADDRL_OFF 0xA4
 359 #define HFA384X_PCI_M1_LEN_OFF 0xA8
 360 #define HFA384X_PCI_M1_CTL_OFF 0xAC
 361
 362 /* PCI bus master control bits (these are undocumented; based on guessing and
 363  * experimenting..) */
 364 #define HFA384X_PCI_CTL_FROM_BAP (BIT(5) | BIT(1) | BIT(0))
 365 #define HFA384X_PCI_CTL_TO_BAP (BIT(5) | BIT(0))
 366
 367 #endif /* PRISM2_PCI */
 368
 369
 370 /* Command codes for CMD reg. */
 371 #define HFA384X_CMDCODE_INIT 0x00
 372 #define HFA384X_CMDCODE_ENABLE 0x01
 373 #define HFA384X_CMDCODE_DISABLE 0x02
 374 #define HFA384X_CMDCODE_ALLOC 0x0A
 375 #define HFA384X_CMDCODE_TRANSMIT 0x0B
 376 #define HFA384X_CMDCODE_INQUIRE 0x11
 377 #define HFA384X_CMDCODE_ACCESS 0x21
 378 #define HFA384X_CMDCODE_ACCESS_WRITE (0x21 | BIT(8))
 379 #define HFA384X_CMDCODE_DOWNLOAD 0x22
 380 #define HFA384X_CMDCODE_READMIF 0x30
 381 #define HFA384X_CMDCODE_WRITEMIF 0x31
 382 #define HFA384X_CMDCODE_TEST 0x38
 383
 384 #define HFA384X_CMDCODE_MASK 0x3F
 385
 386 /* Test mode operations */
 387 #define HFA384X_TEST_CHANGE_CHANNEL 0x08
 388 #define HFA384X_TEST_MONITOR 0x0B
 389 #define HFA384X_TEST_STOP 0x0F
 390 #define HFA384X_TEST_CFG_BITS 0x15
 391 #define HFA384X_TEST_CFG_BIT_ALC BIT(3)
 392
 393 #define HFA384X_CMD_BUSY BIT(15)
 394
 395 #define HFA384X_CMD_TX_RECLAIM BIT(8)
 396
 397 #define HFA384X_OFFSET_ERR BIT(14)
 398 #define HFA384X_OFFSET_BUSY BIT(15)
 399
 400
 401 /* ProgMode for download command */
 402 #define HFA384X_PROGMODE_DISABLE 0
 403 #define HFA384X_PROGMODE_ENABLE_VOLATILE 1
 404 #define HFA384X_PROGMODE_ENABLE_NON_VOLATILE 2
 405 #define HFA384X_PROGMODE_PROGRAM_NON_VOLATILE 3
 406
 407 #define HFA384X_AUX_MAGIC0 0xfe01
 408 #define HFA384X_AUX_MAGIC1 0xdc23
 409 #define HFA384X_AUX_MAGIC2 0xba45
 410
 411 #define HFA384X_AUX_PORT_DISABLED 0
 412 #define HFA384X_AUX_PORT_DISABLE BIT(14)
 413 #define HFA384X_AUX_PORT_ENABLE BIT(15)
 414 #define HFA384X_AUX_PORT_ENABLED (BIT(14) | BIT(15))
 415 #define HFA384X_AUX_PORT_MASK (BIT(14) | BIT(15))
 416
 417 #define PRISM2_PDA_SIZE 1024
 418
 419
 420 /* Events; EvStat, Interrupt mask (IntEn), and acknowledge bits (EvAck) */
 421 #define HFA384X_EV_TICK BIT(15)
 422 #define HFA384X_EV_WTERR BIT(14)
 423 #define HFA384X_EV_INFDROP BIT(13)
 424 #ifdef PRISM2_PCI
 425 #define HFA384X_EV_PCI_M1 BIT(9)
 426 #define HFA384X_EV_PCI_M0 BIT(8)
 427 #endif /* PRISM2_PCI */
 428 #define HFA384X_EV_INFO BIT(7)
 429 #define HFA384X_EV_DTIM BIT(5)
 430 #define HFA384X_EV_CMD BIT(4)
 431 #define HFA384X_EV_ALLOC BIT(3)
 432 #define HFA384X_EV_TXEXC BIT(2)
 433 #define HFA384X_EV_TX BIT(1)
 434 #define HFA384X_EV_RX BIT(0)
 435
 436
 437 /* HFA384X Information frames */
 438 #define HFA384X_INFO_HANDOVERADDR 0xF000 /* AP f/w ? */
 439 #define HFA384X_INFO_HANDOVERDEAUTHADDR 0xF001 /* AP f/w 1.3.7 */
 440 #define HFA384X_INFO_COMMTALLIES 0xF100
 441 #define HFA384X_INFO_SCANRESULTS 0xF101
 442 #define HFA384X_INFO_CHANNELINFORESULTS 0xF102 /* AP f/w only */
 443 #define HFA384X_INFO_HOSTSCANRESULTS 0xF103
 444 #define HFA384X_INFO_LINKSTATUS 0xF200
 445 #define HFA384X_INFO_ASSOCSTATUS 0xF201 /* ? */
 446 #define HFA384X_INFO_AUTHREQ 0xF202 /* ? */
 447 #define HFA384X_INFO_PSUSERCNT 0xF203 /* ? */
 448 #define HFA384X_INFO_KEYIDCHANGED 0xF204 /* ? */
 449
 450 enum { HFA384X_LINKSTATUS_CONNECTED = 1,
 451        HFA384X_LINKSTATUS_DISCONNECTED = 2,
 452        HFA384X_LINKSTATUS_AP_CHANGE = 3,
 453        HFA384X_LINKSTATUS_AP_OUT_OF_RANGE = 4,
 454        HFA384X_LINKSTATUS_AP_IN_RANGE = 5,
 455        HFA384X_LINKSTATUS_ASSOC_FAILED = 6 };
 456
 457 enum { HFA384X_PORTTYPE_BSS = 1, HFA384X_PORTTYPE_WDS = 2,
 458        HFA384X_PORTTYPE_PSEUDO_IBSS = 3, HFA384X_PORTTYPE_IBSS = 0,
 459        HFA384X_PORTTYPE_HOSTAP = 6 };
 460
 461 #define HFA384X_RATES_1MBPS BIT(0)
 462 #define HFA384X_RATES_2MBPS BIT(1)
 463 #define HFA384X_RATES_5MBPS BIT(2)
 464 #define HFA384X_RATES_11MBPS BIT(3)
 465
 466 #define HFA384X_ROAMING_FIRMWARE 1
 467 #define HFA384X_ROAMING_HOST 2
 468 #define HFA384X_ROAMING_DISABLED 3
 469
 470 #define HFA384X_WEPFLAGS_PRIVACYINVOKED BIT(0)
 471 #define HFA384X_WEPFLAGS_EXCLUDEUNENCRYPTED BIT(1)
 472 #define HFA384X_WEPFLAGS_HOSTENCRYPT BIT(4)
 473 #define HFA384X_WEPFLAGS_HOSTDECRYPT BIT(7)
 474
 475 #define HFA384X_RX_STATUS_MSGTYPE (BIT(15) | BIT(14) | BIT(13))
 476 #define HFA384X_RX_STATUS_PCF BIT(12)
 477 #define HFA384X_RX_STATUS_MACPORT (BIT(10) | BIT(9) | BIT(8))
 478 #define HFA384X_RX_STATUS_UNDECR BIT(1)
 479 #define HFA384X_RX_STATUS_FCSERR BIT(0)
 480
 481 #define HFA384X_RX_STATUS_GET_MSGTYPE(s) \
 482 (((s) & HFA384X_RX_STATUS_MSGTYPE) >> 13)
 483 #define HFA384X_RX_STATUS_GET_MACPORT(s) \
 484 (((s) & HFA384X_RX_STATUS_MACPORT) >> 8)
 485
 486 enum { HFA384X_RX_MSGTYPE_NORMAL = 0, HFA384X_RX_MSGTYPE_RFC1042 = 1,
 487        HFA384X_RX_MSGTYPE_BRIDGETUNNEL = 2, HFA384X_RX_MSGTYPE_MGMT = 4 };
 488
 489
 490 #define HFA384X_TX_CTRL_ALT_RTRY BIT(5)
 491 #define HFA384X_TX_CTRL_802_11 BIT(3)
 492 #define HFA384X_TX_CTRL_802_3 0
 493 #define HFA384X_TX_CTRL_TX_EX BIT(2)
 494 #define HFA384X_TX_CTRL_TX_OK BIT(1)
 495
 496 #define HFA384X_TX_STATUS_RETRYERR BIT(0)
 497 #define HFA384X_TX_STATUS_AGEDERR BIT(1)
 498 #define HFA384X_TX_STATUS_DISCON BIT(2)
 499 #define HFA384X_TX_STATUS_FORMERR BIT(3)
 500
 501 /* HFA3861/3863 (BBP) Control Registers */
 502 #define HFA386X_CR_TX_CONFIGURE 0x12 /* CR9 */
 503 #define HFA386X_CR_RX_CONFIGURE 0x14 /* CR10 */
 504 #define HFA386X_CR_A_D_TEST_MODES2 0x1A /* CR13 */
 505 #define HFA386X_CR_MANUAL_TX_POWER 0x3E /* CR31 */
 506 #define HFA386X_CR_MEASURED_TX_POWER 0x74 /* CR58 */
 507
 508
 509 #ifdef __KERNEL__
 510
 511 #define PRISM2_TXFID_COUNT 8
 512 #define PRISM2_DATA_MAXLEN 2304
 513 #define PRISM2_TXFID_LEN (PRISM2_DATA_MAXLEN + sizeof(struct hfa384x_tx_frame))
 514 #define PRISM2_TXFID_EMPTY 0xffff
 515 #define PRISM2_TXFID_RESERVED 0xfffe
 516 #define PRISM2_DUMMY_FID 0xffff
 517 #define MAX_SSID_LEN 32
 518 #define MAX_NAME_LEN 32 /* this is assumed to be equal to MAX_SSID_LEN */
 519
 520 #define PRISM2_DUMP_RX_HDR BIT(0)
 521 #define PRISM2_DUMP_TX_HDR BIT(1)
 522 #define PRISM2_DUMP_TXEXC_HDR BIT(2)
 523
 524 struct hostap_tx_callback_info {
 525         u16 idx;
 526         void (*func)(struct sk_buff *, int ok, void *);
 527         void *data;
 528         struct hostap_tx_callback_info *next;
 529 };
 530
 531
 532 /* IEEE 802.11 requires that STA supports concurrent reception of at least
 533  * three fragmented frames. This define can be increased to support more
 534  * concurrent frames, but it should be noted that each entry can consume about
 535  * 2 kB of RAM and increasing cache size will slow down frame reassembly. */
 536 #define PRISM2_FRAG_CACHE_LEN 4
 537
 538 struct prism2_frag_entry {
 539         unsigned long first_frag_time;
 540         unsigned int seq;
 541         unsigned int last_frag;
 542         struct sk_buff *skb;
 543         u8 src_addr[ETH_ALEN];
 544         u8 dst_addr[ETH_ALEN];
 545 };
 546
 547
 548 struct hostap_cmd_queue {
 549         struct list_head list;
 550         wait_queue_head_t compl;
 551         volatile enum { CMD_SLEEP, CMD_CALLBACK, CMD_COMPLETED } type;
 552         void (*callback)(struct net_device *dev, long context, u16 resp0,
 553                          u16 res);
 554         long context;
 555         u16 cmd, param0, param1;
 556         u16 resp0, res;
 557         volatile int issued, issuing;
 558
 559         atomic_t usecnt;
 560         int del_req;
 561 };
 562
 563 /* options for hw_shutdown */
 564 #define HOSTAP_HW_NO_DISABLE BIT(0)
 565 #define HOSTAP_HW_ENABLE_CMDCOMPL BIT(1)
 566
 567 typedef struct local_info local_info_t;
 568
 569 struct prism2_helper_functions {
 570         /* these functions are defined in hardware model specific files
 571          * (hostap_{cs,plx,pci}.c */
 572         int (*card_present)(local_info_t *local);
 573         void (*cor_sreset)(local_info_t *local);
 574         void (*genesis_reset)(local_info_t *local, int hcr);
 575
 576         /* the following functions are from hostap_hw.c, but they may have some
 577          * hardware model specific code */
 578
 579         /* FIX: low-level commands like cmd might disappear at some point to
 580          * make it easier to change them if needed (e.g., cmd would be replaced
 581          * with write_mif/read_mif/testcmd/inquire); at least get_rid and
 582          * set_rid might move to hostap_{cs,plx,pci}.c */
 583         int (*cmd)(struct net_device *dev, u16 cmd, u16 param0, u16 *param1,
 584                    u16 *resp0);
 585         void (*read_regs)(struct net_device *dev, struct hfa384x_regs *regs);
 586         int (*get_rid)(struct net_device *dev, u16 rid, void *buf, int len,
 587                        int exact_len);
 588         int (*set_rid)(struct net_device *dev, u16 rid, void *buf, int len);
 589         int (*hw_enable)(struct net_device *dev, int initial);
 590         int (*hw_config)(struct net_device *dev, int initial);
 591         void (*hw_reset)(struct net_device *dev);
 592         void (*hw_shutdown)(struct net_device *dev, int no_disable);
 593         int (*reset_port)(struct net_device *dev);
 594         void (*schedule_reset)(local_info_t *local);
 595         int (*download)(local_info_t *local,
 596                         struct prism2_download_param *param);
 597         int (*tx)(struct sk_buff *skb, struct net_device *dev);
 598         int (*set_tim)(struct net_device *dev, int aid, int set);
 599         int (*read_aux)(struct net_device *dev, unsigned addr, int len,
 600                         u8 *buf);
 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
 608 struct 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
 623 struct 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. */
 644 struct 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[6]; /* 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. */
 891 struct 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  */
 923 struct 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...) \
 950 do { if ((n) & DEBUG_MASK) printk(KERN_DEBUG args); } while (0)
 951 #define PDEBUG2(n, args...) \
 952 do { 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
 961 enum { 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
 977 static 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
 996 static 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
1016 static inline void prism2_io_debug_add(struct net_device *dev, int cmd,
1017                                        int reg, int value)
1018 {
1019 }
1020
1021 static 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
1029 enum {
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 };
1040 void 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 */