drivers/net/wireless/intel/ipw2x00/ipw2100.c

   1 /******************************************************************************
   2
   3   Copyright(c) 2003 - 2006 Intel Corporation. All rights reserved.
   4
   5   This program is free software; you can redistribute it and/or modify it
   6   under the terms of version 2 of the GNU General Public License as
   7   published by the Free Software Foundation.
   8
   9   This program is distributed in the hope that it will be useful, but WITHOUT
  10   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  12   more details.
  13
  14   You should have received a copy of the GNU General Public License along with
  15   this program; if not, write to the Free Software Foundation, Inc., 59
  16   Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  17
  18   The full GNU General Public License is included in this distribution in the
  19   file called LICENSE.
  20
  21   Contact Information:
  22   Intel Linux Wireless <ilw@linux.intel.com>
  23   Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  24
  25   Portions of this file are based on the sample_* files provided by Wireless
  26   Extensions 0.26 package and copyright (c) 1997-2003 Jean Tourrilhes
  27   <jt@hpl.hp.com>
  28
  29   Portions of this file are based on the Host AP project,
  30   Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
  31     <j@w1.fi>
  32   Copyright (c) 2002-2003, Jouni Malinen <j@w1.fi>
  33
  34   Portions of ipw2100_mod_firmware_load, ipw2100_do_mod_firmware_load, and
  35   ipw2100_fw_load are loosely based on drivers/sound/sound_firmware.c
  36   available in the 2.4.25 kernel sources, and are copyright (c) Alan Cox
  37
  38 ******************************************************************************/
  39 /*
  40
  41  Initial driver on which this is based was developed by Janusz Gorycki,
  42  Maciej Urbaniak, and Maciej Sosnowski.
  43
  44  Promiscuous mode support added by Jacek Wysoczynski and Maciej Urbaniak.
  45
  46 Theory of Operation
  47
  48 Tx - Commands and Data
  49
  50 Firmware and host share a circular queue of Transmit Buffer Descriptors (TBDs)
  51 Each TBD contains a pointer to the physical (dma_addr_t) address of data being
  52 sent to the firmware as well as the length of the data.
  53
  54 The host writes to the TBD queue at the WRITE index.  The WRITE index points
  55 to the _next_ packet to be written and is advanced when after the TBD has been
  56 filled.
  57
  58 The firmware pulls from the TBD queue at the READ index.  The READ index points
  59 to the currently being read entry, and is advanced once the firmware is
  60 done with a packet.
  61
  62 When data is sent to the firmware, the first TBD is used to indicate to the
  63 firmware if a Command or Data is being sent.  If it is Command, all of the
  64 command information is contained within the physical address referred to by the
  65 TBD.  If it is Data, the first TBD indicates the type of data packet, number
  66 of fragments, etc.  The next TBD then refers to the actual packet location.
  67
  68 The Tx flow cycle is as follows:
  69
  70 1) ipw2100_tx() is called by kernel with SKB to transmit
  71 2) Packet is move from the tx_free_list and appended to the transmit pending
  72    list (tx_pend_list)
  73 3) work is scheduled to move pending packets into the shared circular queue.
  74 4) when placing packet in the circular queue, the incoming SKB is DMA mapped
  75    to a physical address.  That address is entered into a TBD.  Two TBDs are
  76    filled out.  The first indicating a data packet, the second referring to the
  77    actual payload data.
  78 5) the packet is removed from tx_pend_list and placed on the end of the
  79    firmware pending list (fw_pend_list)
  80 6) firmware is notified that the WRITE index has
  81 7) Once the firmware has processed the TBD, INTA is triggered.
  82 8) For each Tx interrupt received from the firmware, the READ index is checked
  83    to see which TBDs are done being processed.
  84 9) For each TBD that has been processed, the ISR pulls the oldest packet
  85    from the fw_pend_list.
  86 10)The packet structure contained in the fw_pend_list is then used
  87    to unmap the DMA address and to free the SKB originally passed to the driver
  88    from the kernel.
  89 11)The packet structure is placed onto the tx_free_list
  90
  91 The above steps are the same for commands, only the msg_free_list/msg_pend_list
  92 are used instead of tx_free_list/tx_pend_list
  93
  94 ...
  95
  96 Critical Sections / Locking :
  97
  98 There are two locks utilized.  The first is the low level lock (priv->low_lock)
  99 that protects the following:
 100
 101 - Access to the Tx/Rx queue lists via priv->low_lock. The lists are as follows:
 102
 103   tx_free_list : Holds pre-allocated Tx buffers.
 104     TAIL modified in __ipw2100_tx_process()
 105     HEAD modified in ipw2100_tx()
 106
 107   tx_pend_list : Holds used Tx buffers waiting to go into the TBD ring
 108     TAIL modified ipw2100_tx()
 109     HEAD modified by ipw2100_tx_send_data()
 110
 111   msg_free_list : Holds pre-allocated Msg (Command) buffers
 112     TAIL modified in __ipw2100_tx_process()
 113     HEAD modified in ipw2100_hw_send_command()
 114
 115   msg_pend_list : Holds used Msg buffers waiting to go into the TBD ring
 116     TAIL modified in ipw2100_hw_send_command()
 117     HEAD modified in ipw2100_tx_send_commands()
 118
 119   The flow of data on the TX side is as follows:
 120
 121   MSG_FREE_LIST + COMMAND => MSG_PEND_LIST => TBD => MSG_FREE_LIST
 122   TX_FREE_LIST + DATA => TX_PEND_LIST => TBD => TX_FREE_LIST
 123
 124   The methods that work on the TBD ring are protected via priv->low_lock.
 125
 126 - The internal data state of the device itself
 127 - Access to the firmware read/write indexes for the BD queues
 128   and associated logic
 129
 130 All external entry functions are locked with the priv->action_lock to ensure
 131 that only one external action is invoked at a time.
 132
 133
 134 */
 135
 136 #include <linux/compiler.h>
 137 #include <linux/errno.h>
 138 #include <linux/if_arp.h>
 139 #include <linux/in6.h>
 140 #include <linux/in.h>
 141 #include <linux/ip.h>
 142 #include <linux/kernel.h>
 143 #include <linux/kmod.h>
 144 #include <linux/module.h>
 145 #include <linux/netdevice.h>
 146 #include <linux/ethtool.h>
 147 #include <linux/pci.h>
 148 #include <linux/dma-mapping.h>
 149 #include <linux/proc_fs.h>
 150 #include <linux/skbuff.h>
 151 #include <linux/uaccess.h>
 152 #include <asm/io.h>
 153 #include <linux/fs.h>
 154 #include <linux/mm.h>
 155 #include <linux/slab.h>
 156 #include <linux/unistd.h>
 157 #include <linux/stringify.h>
 158 #include <linux/tcp.h>
 159 #include <linux/types.h>
 160 #include <linux/time.h>
 161 #include <linux/firmware.h>
 162 #include <linux/acpi.h>
 163 #include <linux/ctype.h>
 164 #include <linux/pm_qos.h>
 165
 166 #include <net/lib80211.h>
 167
 168 #include "ipw2100.h"
 169 #include "ipw.h"
 170
 171 #define IPW2100_VERSION "git-1.2.2"
 172
 173 #define DRV_NAME        "ipw2100"
 174 #define DRV_VERSION     IPW2100_VERSION
 175 #define DRV_DESCRIPTION "Intel(R) PRO/Wireless 2100 Network Driver"
 176 #define DRV_COPYRIGHT   "Copyright(c) 2003-2006 Intel Corporation"
 177
 178 static struct pm_qos_request ipw2100_pm_qos_req;
 179
 180 /* Debugging stuff */
 181 #ifdef CONFIG_IPW2100_DEBUG
 182 #define IPW2100_RX_DEBUG        /* Reception debugging */
 183 #endif
 184
 185 MODULE_DESCRIPTION(DRV_DESCRIPTION);
 186 MODULE_VERSION(DRV_VERSION);
 187 MODULE_AUTHOR(DRV_COPYRIGHT);
 188 MODULE_LICENSE("GPL");
 189
 190 static int debug = 0;
 191 static int network_mode = 0;
 192 static int channel = 0;
 193 static int associate = 0;
 194 static int disable = 0;
 195 #ifdef CONFIG_PM
 196 static struct ipw2100_fw ipw2100_firmware;
 197 #endif
 198
 199 #include <linux/moduleparam.h>
 200 module_param(debug, int, 0444);
 201 module_param_named(mode, network_mode, int, 0444);
 202 module_param(channel, int, 0444);
 203 module_param(associate, int, 0444);
 204 module_param(disable, int, 0444);
 205
 206 MODULE_PARM_DESC(debug, "debug level");
 207 MODULE_PARM_DESC(mode, "network mode (0=BSS,1=IBSS,2=Monitor)");
 208 MODULE_PARM_DESC(channel, "channel");
 209 MODULE_PARM_DESC(associate, "auto associate when scanning (default off)");
 210 MODULE_PARM_DESC(disable, "manually disable the radio (default 0 [radio on])");
 211
 212 static u32 ipw2100_debug_level = IPW_DL_NONE;
 213
 214 #ifdef CONFIG_IPW2100_DEBUG
 215 #define IPW_DEBUG(level, message...) \
 216 do { \
 217         if (ipw2100_debug_level & (level)) { \
 218                 printk(KERN_DEBUG "ipw2100: %c %s ", \
 219                        in_interrupt() ? 'I' : 'U',  __func__); \
 220                 printk(message); \
 221         } \
 222 } while (0)
 223 #else
 224 #define IPW_DEBUG(level, message...) do {} while (0)
 225 #endif                          /* CONFIG_IPW2100_DEBUG */
 226
 227 #ifdef CONFIG_IPW2100_DEBUG
 228 static const char *command_types[] = {
 229         "undefined",
 230         "unused",               /* HOST_ATTENTION */
 231         "HOST_COMPLETE",
 232         "unused",               /* SLEEP */
 233         "unused",               /* HOST_POWER_DOWN */
 234         "unused",
 235         "SYSTEM_CONFIG",
 236         "unused",               /* SET_IMR */
 237         "SSID",
 238         "MANDATORY_BSSID",
 239         "AUTHENTICATION_TYPE",
 240         "ADAPTER_ADDRESS",
 241         "PORT_TYPE",
 242         "INTERNATIONAL_MODE",
 243         "CHANNEL",
 244         "RTS_THRESHOLD",
 245         "FRAG_THRESHOLD",
 246         "POWER_MODE",
 247         "TX_RATES",
 248         "BASIC_TX_RATES",
 249         "WEP_KEY_INFO",
 250         "unused",
 251         "unused",
 252         "unused",
 253         "unused",
 254         "WEP_KEY_INDEX",
 255         "WEP_FLAGS",
 256         "ADD_MULTICAST",
 257         "CLEAR_ALL_MULTICAST",
 258         "BEACON_INTERVAL",
 259         "ATIM_WINDOW",
 260         "CLEAR_STATISTICS",
 261         "undefined",
 262         "undefined",
 263         "undefined",
 264         "undefined",
 265         "TX_POWER_INDEX",
 266         "undefined",
 267         "undefined",
 268         "undefined",
 269         "undefined",
 270         "undefined",
 271         "undefined",
 272         "BROADCAST_SCAN",
 273         "CARD_DISABLE",
 274         "PREFERRED_BSSID",
 275         "SET_SCAN_OPTIONS",
 276         "SCAN_DWELL_TIME",
 277         "SWEEP_TABLE",
 278         "AP_OR_STATION_TABLE",
 279         "GROUP_ORDINALS",
 280         "SHORT_RETRY_LIMIT",
 281         "LONG_RETRY_LIMIT",
 282         "unused",               /* SAVE_CALIBRATION */
 283         "unused",               /* RESTORE_CALIBRATION */
 284         "undefined",
 285         "undefined",
 286         "undefined",
 287         "HOST_PRE_POWER_DOWN",
 288         "unused",               /* HOST_INTERRUPT_COALESCING */
 289         "undefined",
 290         "CARD_DISABLE_PHY_OFF",
 291         "MSDU_TX_RATES",
 292         "undefined",
 293         "SET_STATION_STAT_BITS",
 294         "CLEAR_STATIONS_STAT_BITS",
 295         "LEAP_ROGUE_MODE",
 296         "SET_SECURITY_INFORMATION",
 297         "DISASSOCIATION_BSSID",
 298         "SET_WPA_ASS_IE"
 299 };
 300 #endif
 301
 302 static const long ipw2100_frequencies[] = {
 303         2412, 2417, 2422, 2427,
 304         2432, 2437, 2442, 2447,
 305         2452, 2457, 2462, 2467,
 306         2472, 2484
 307 };
 308
 309 #define FREQ_COUNT      ARRAY_SIZE(ipw2100_frequencies)
 310
 311 static struct ieee80211_rate ipw2100_bg_rates[] = {
 312         { .bitrate = 10 },
 313         { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
 314         { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
 315         { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
 316 };
 317
 318 #define RATE_COUNT ARRAY_SIZE(ipw2100_bg_rates)
 319
 320 /* Pre-decl until we get the code solid and then we can clean it up */
 321 static void ipw2100_tx_send_commands(struct ipw2100_priv *priv);
 322 static void ipw2100_tx_send_data(struct ipw2100_priv *priv);
 323 static int ipw2100_adapter_setup(struct ipw2100_priv *priv);
 324
 325 static void ipw2100_queues_initialize(struct ipw2100_priv *priv);
 326 static void ipw2100_queues_free(struct ipw2100_priv *priv);
 327 static int ipw2100_queues_allocate(struct ipw2100_priv *priv);
 328
 329 static int ipw2100_fw_download(struct ipw2100_priv *priv,
 330                                struct ipw2100_fw *fw);
 331 static int ipw2100_get_firmware(struct ipw2100_priv *priv,
 332                                 struct ipw2100_fw *fw);
 333 static int ipw2100_get_fwversion(struct ipw2100_priv *priv, char *buf,
 334                                  size_t max);
 335 static int ipw2100_get_ucodeversion(struct ipw2100_priv *priv, char *buf,
 336                                     size_t max);
 337 static void ipw2100_release_firmware(struct ipw2100_priv *priv,
 338                                      struct ipw2100_fw *fw);
 339 static int ipw2100_ucode_download(struct ipw2100_priv *priv,
 340                                   struct ipw2100_fw *fw);
 341 static void ipw2100_wx_event_work(struct work_struct *work);
 342 static struct iw_statistics *ipw2100_wx_wireless_stats(struct net_device *dev);
 343 static const struct iw_handler_def ipw2100_wx_handler_def;
 344
 345 static inline void read_register(struct net_device *dev, u32 reg, u32 * val)
 346 {
 347         struct ipw2100_priv *priv = libipw_priv(dev);
 348
 349         *val = ioread32(priv->ioaddr + reg);
 350         IPW_DEBUG_IO("r: 0x%08X => 0x%08X\n", reg, *val);
 351 }
 352
 353 static inline void write_register(struct net_device *dev, u32 reg, u32 val)
 354 {
 355         struct ipw2100_priv *priv = libipw_priv(dev);
 356
 357         iowrite32(val, priv->ioaddr + reg);
 358         IPW_DEBUG_IO("w: 0x%08X <= 0x%08X\n", reg, val);
 359 }
 360
 361 static inline void read_register_word(struct net_device *dev, u32 reg,
 362                                       u16 * val)
 363 {
 364         struct ipw2100_priv *priv = libipw_priv(dev);
 365
 366         *val = ioread16(priv->ioaddr + reg);
 367         IPW_DEBUG_IO("r: 0x%08X => %04X\n", reg, *val);
 368 }
 369
 370 static inline void read_register_byte(struct net_device *dev, u32 reg, u8 * val)
 371 {
 372         struct ipw2100_priv *priv = libipw_priv(dev);
 373
 374         *val = ioread8(priv->ioaddr + reg);
 375         IPW_DEBUG_IO("r: 0x%08X => %02X\n", reg, *val);
 376 }
 377
 378 static inline void write_register_word(struct net_device *dev, u32 reg, u16 val)
 379 {
 380         struct ipw2100_priv *priv = libipw_priv(dev);
 381
 382         iowrite16(val, priv->ioaddr + reg);
 383         IPW_DEBUG_IO("w: 0x%08X <= %04X\n", reg, val);
 384 }
 385
 386 static inline void write_register_byte(struct net_device *dev, u32 reg, u8 val)
 387 {
 388         struct ipw2100_priv *priv = libipw_priv(dev);
 389
 390         iowrite8(val, priv->ioaddr + reg);
 391         IPW_DEBUG_IO("w: 0x%08X =< %02X\n", reg, val);
 392 }
 393
 394 static inline void read_nic_dword(struct net_device *dev, u32 addr, u32 * val)
 395 {
 396         write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
 397                        addr & IPW_REG_INDIRECT_ADDR_MASK);
 398         read_register(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
 399 }
 400
 401 static inline void write_nic_dword(struct net_device *dev, u32 addr, u32 val)
 402 {
 403         write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
 404                        addr & IPW_REG_INDIRECT_ADDR_MASK);
 405         write_register(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
 406 }
 407
 408 static inline void read_nic_word(struct net_device *dev, u32 addr, u16 * val)
 409 {
 410         write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
 411                        addr & IPW_REG_INDIRECT_ADDR_MASK);
 412         read_register_word(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
 413 }
 414
 415 static inline void write_nic_word(struct net_device *dev, u32 addr, u16 val)
 416 {
 417         write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
 418                        addr & IPW_REG_INDIRECT_ADDR_MASK);
 419         write_register_word(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
 420 }
 421
 422 static inline void read_nic_byte(struct net_device *dev, u32 addr, u8 * val)
 423 {
 424         write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
 425                        addr & IPW_REG_INDIRECT_ADDR_MASK);
 426         read_register_byte(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
 427 }
 428
 429 static inline void write_nic_byte(struct net_device *dev, u32 addr, u8 val)
 430 {
 431         write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
 432                        addr & IPW_REG_INDIRECT_ADDR_MASK);
 433         write_register_byte(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
 434 }
 435
 436 static inline void write_nic_auto_inc_address(struct net_device *dev, u32 addr)
 437 {
 438         write_register(dev, IPW_REG_AUTOINCREMENT_ADDRESS,
 439                        addr & IPW_REG_INDIRECT_ADDR_MASK);
 440 }
 441
 442 static inline void write_nic_dword_auto_inc(struct net_device *dev, u32 val)
 443 {
 444         write_register(dev, IPW_REG_AUTOINCREMENT_DATA, val);
 445 }
 446
 447 static void write_nic_memory(struct net_device *dev, u32 addr, u32 len,
 448                                     const u8 * buf)
 449 {
 450         u32 aligned_addr;
 451         u32 aligned_len;
 452         u32 dif_len;
 453         u32 i;
 454
 455         /* read first nibble byte by byte */
 456         aligned_addr = addr & (~0x3);
 457         dif_len = addr - aligned_addr;
 458         if (dif_len) {
 459                 /* Start reading at aligned_addr + dif_len */
 460                 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
 461                                aligned_addr);
 462                 for (i = dif_len; i < 4; i++, buf++)
 463                         write_register_byte(dev,
 464                                             IPW_REG_INDIRECT_ACCESS_DATA + i,
 465                                             *buf);
 466
 467                 len -= dif_len;
 468                 aligned_addr += 4;
 469         }
 470
 471         /* read DWs through autoincrement registers */
 472         write_register(dev, IPW_REG_AUTOINCREMENT_ADDRESS, aligned_addr);
 473         aligned_len = len & (~0x3);
 474         for (i = 0; i < aligned_len; i += 4, buf += 4, aligned_addr += 4)
 475                 write_register(dev, IPW_REG_AUTOINCREMENT_DATA, *(u32 *) buf);
 476
 477         /* copy the last nibble */
 478         dif_len = len - aligned_len;
 479         write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS, aligned_addr);
 480         for (i = 0; i < dif_len; i++, buf++)
 481                 write_register_byte(dev, IPW_REG_INDIRECT_ACCESS_DATA + i,
 482                                     *buf);
 483 }
 484
 485 static void read_nic_memory(struct net_device *dev, u32 addr, u32 len,
 486                                    u8 * buf)
 487 {
 488         u32 aligned_addr;
 489         u32 aligned_len;
 490         u32 dif_len;
 491         u32 i;
 492
 493         /* read first nibble byte by byte */
 494         aligned_addr = addr & (~0x3);
 495         dif_len = addr - aligned_addr;
 496         if (dif_len) {
 497                 /* Start reading at aligned_addr + dif_len */
 498                 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
 499                                aligned_addr);
 500                 for (i = dif_len; i < 4; i++, buf++)
 501                         read_register_byte(dev,
 502                                            IPW_REG_INDIRECT_ACCESS_DATA + i,
 503                                            buf);
 504
 505                 len -= dif_len;
 506                 aligned_addr += 4;
 507         }
 508
 509         /* read DWs through autoincrement registers */
 510         write_register(dev, IPW_REG_AUTOINCREMENT_ADDRESS, aligned_addr);
 511         aligned_len = len & (~0x3);
 512         for (i = 0; i < aligned_len; i += 4, buf += 4, aligned_addr += 4)
 513                 read_register(dev, IPW_REG_AUTOINCREMENT_DATA, (u32 *) buf);
 514
 515         /* copy the last nibble */
 516         dif_len = len - aligned_len;
 517         write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS, aligned_addr);
 518         for (i = 0; i < dif_len; i++, buf++)
 519                 read_register_byte(dev, IPW_REG_INDIRECT_ACCESS_DATA + i, buf);
 520 }
 521
 522 static bool ipw2100_hw_is_adapter_in_system(struct net_device *dev)
 523 {
 524         u32 dbg;
 525
 526         read_register(dev, IPW_REG_DOA_DEBUG_AREA_START, &dbg);
 527
 528         return dbg == IPW_DATA_DOA_DEBUG_VALUE;
 529 }
 530
 531 static int ipw2100_get_ordinal(struct ipw2100_priv *priv, u32 ord,
 532                                void *val, u32 * len)
 533 {
 534         struct ipw2100_ordinals *ordinals = &priv->ordinals;
 535         u32 addr;
 536         u32 field_info;
 537         u16 field_len;
 538         u16 field_count;
 539         u32 total_length;
 540
 541         if (ordinals->table1_addr == 0) {
 542                 printk(KERN_WARNING DRV_NAME ": attempt to use fw ordinals "
 543                        "before they have been loaded.\n");
 544                 return -EINVAL;
 545         }
 546
 547         if (IS_ORDINAL_TABLE_ONE(ordinals, ord)) {
 548                 if (*len < IPW_ORD_TAB_1_ENTRY_SIZE) {
 549                         *len = IPW_ORD_TAB_1_ENTRY_SIZE;
 550
 551                         printk(KERN_WARNING DRV_NAME
 552                                ": ordinal buffer length too small, need %zd\n",
 553                                IPW_ORD_TAB_1_ENTRY_SIZE);
 554
 555                         return -EINVAL;
 556                 }
 557
 558                 read_nic_dword(priv->net_dev,
 559                                ordinals->table1_addr + (ord << 2), &addr);
 560                 read_nic_dword(priv->net_dev, addr, val);
 561
 562                 *len = IPW_ORD_TAB_1_ENTRY_SIZE;
 563
 564                 return 0;
 565         }
 566
 567         if (IS_ORDINAL_TABLE_TWO(ordinals, ord)) {
 568
 569                 ord -= IPW_START_ORD_TAB_2;
 570
 571                 /* get the address of statistic */
 572                 read_nic_dword(priv->net_dev,
 573                                ordinals->table2_addr + (ord << 3), &addr);
 574
 575                 /* get the second DW of statistics ;
 576                  * two 16-bit words - first is length, second is count */
 577                 read_nic_dword(priv->net_dev,
 578                                ordinals->table2_addr + (ord << 3) + sizeof(u32),
 579                                &field_info);
 580
 581                 /* get each entry length */
 582                 field_len = *((u16 *) & field_info);
 583
 584                 /* get number of entries */
 585                 field_count = *(((u16 *) & field_info) + 1);
 586
 587                 /* abort if no enough memory */
 588                 total_length = field_len * field_count;
 589                 if (total_length > *len) {
 590                         *len = total_length;
 591                         return -EINVAL;
 592                 }
 593
 594                 *len = total_length;
 595                 if (!total_length)
 596                         return 0;
 597
 598                 /* read the ordinal data from the SRAM */
 599                 read_nic_memory(priv->net_dev, addr, total_length, val);
 600
 601                 return 0;
 602         }
 603
 604         printk(KERN_WARNING DRV_NAME ": ordinal %d neither in table 1 nor "
 605                "in table 2\n", ord);
 606
 607         return -EINVAL;
 608 }
 609
 610 static int ipw2100_set_ordinal(struct ipw2100_priv *priv, u32 ord, u32 * val,
 611                                u32 * len)
 612 {
 613         struct ipw2100_ordinals *ordinals = &priv->ordinals;
 614         u32 addr;
 615
 616         if (IS_ORDINAL_TABLE_ONE(ordinals, ord)) {
 617                 if (*len != IPW_ORD_TAB_1_ENTRY_SIZE) {
 618                         *len = IPW_ORD_TAB_1_ENTRY_SIZE;
 619                         IPW_DEBUG_INFO("wrong size\n");
 620                         return -EINVAL;
 621                 }
 622
 623                 read_nic_dword(priv->net_dev,
 624                                ordinals->table1_addr + (ord << 2), &addr);
 625
 626                 write_nic_dword(priv->net_dev, addr, *val);
 627
 628                 *len = IPW_ORD_TAB_1_ENTRY_SIZE;
 629
 630                 return 0;
 631         }
 632
 633         IPW_DEBUG_INFO("wrong table\n");
 634         if (IS_ORDINAL_TABLE_TWO(ordinals, ord))
 635                 return -EINVAL;
 636
 637         return -EINVAL;
 638 }
 639
 640 static char *snprint_line(char *buf, size_t count,
 641                           const u8 * data, u32 len, u32 ofs)
 642 {
 643         int out, i, j, l;
 644         char c;
 645
 646         out = snprintf(buf, count, "%08X", ofs);
 647
 648         for (l = 0, i = 0; i < 2; i++) {
 649                 out += snprintf(buf + out, count - out, " ");
 650                 for (j = 0; j < 8 && l < len; j++, l++)
 651                         out += snprintf(buf + out, count - out, "%02X ",
 652                                         data[(i * 8 + j)]);
 653                 for (; j < 8; j++)
 654                         out += snprintf(buf + out, count - out, "   ");
 655         }
 656
 657         out += snprintf(buf + out, count - out, " ");
 658         for (l = 0, i = 0; i < 2; i++) {
 659                 out += snprintf(buf + out, count - out, " ");
 660                 for (j = 0; j < 8 && l < len; j++, l++) {
 661                         c = data[(i * 8 + j)];
 662                         if (!isascii(c) || !isprint(c))
 663                                 c = '.';
 664
 665                         out += snprintf(buf + out, count - out, "%c", c);
 666                 }
 667
 668                 for (; j < 8; j++)
 669                         out += snprintf(buf + out, count - out, " ");
 670         }
 671
 672         return buf;
 673 }
 674
 675 static void printk_buf(int level, const u8 * data, u32 len)
 676 {
 677         char line[81];
 678         u32 ofs = 0;
 679         if (!(ipw2100_debug_level & level))
 680                 return;
 681
 682         while (len) {
 683                 printk(KERN_DEBUG "%s\n",
 684                        snprint_line(line, sizeof(line), &data[ofs],
 685                                     min(len, 16U), ofs));
 686                 ofs += 16;
 687                 len -= min(len, 16U);
 688         }
 689 }
 690
 691 #define MAX_RESET_BACKOFF 10
 692
 693 static void schedule_reset(struct ipw2100_priv *priv)
 694 {
 695         unsigned long now = get_seconds();
 696
 697         /* If we haven't received a reset request within the backoff period,
 698          * then we can reset the backoff interval so this reset occurs
 699          * immediately */
 700         if (priv->reset_backoff &&
 701             (now - priv->last_reset > priv->reset_backoff))
 702                 priv->reset_backoff = 0;
 703
 704         priv->last_reset = get_seconds();
 705
 706         if (!(priv->status & STATUS_RESET_PENDING)) {
 707                 IPW_DEBUG_INFO("%s: Scheduling firmware restart (%ds).\n",
 708                                priv->net_dev->name, priv->reset_backoff);
 709                 netif_carrier_off(priv->net_dev);
 710                 netif_stop_queue(priv->net_dev);
 711                 priv->status |= STATUS_RESET_PENDING;
 712                 if (priv->reset_backoff)
 713                         schedule_delayed_work(&priv->reset_work,
 714                                               priv->reset_backoff * HZ);
 715                 else
 716                         schedule_delayed_work(&priv->reset_work, 0);
 717
 718                 if (priv->reset_backoff < MAX_RESET_BACKOFF)
 719                         priv->reset_backoff++;
 720
 721                 wake_up_interruptible(&priv->wait_command_queue);
 722         } else
 723                 IPW_DEBUG_INFO("%s: Firmware restart already in progress.\n",
 724                                priv->net_dev->name);
 725
 726 }
 727
 728 #define HOST_COMPLETE_TIMEOUT (2 * HZ)
 729 static int ipw2100_hw_send_command(struct ipw2100_priv *priv,
 730                                    struct host_command *cmd)
 731 {
 732         struct list_head *element;
 733         struct ipw2100_tx_packet *packet;
 734         unsigned long flags;
 735         int err = 0;
 736
 737         IPW_DEBUG_HC("Sending %s command (#%d), %d bytes\n",
 738                      command_types[cmd->host_command], cmd->host_command,
 739                      cmd->host_command_length);
 740         printk_buf(IPW_DL_HC, (u8 *) cmd->host_command_parameters,
 741                    cmd->host_command_length);
 742
 743         spin_lock_irqsave(&priv->low_lock, flags);
 744
 745         if (priv->fatal_error) {
 746                 IPW_DEBUG_INFO
 747                     ("Attempt to send command while hardware in fatal error condition.\n");
 748                 err = -EIO;
 749                 goto fail_unlock;
 750         }
 751
 752         if (!(priv->status & STATUS_RUNNING)) {
 753                 IPW_DEBUG_INFO
 754                     ("Attempt to send command while hardware is not running.\n");
 755                 err = -EIO;
 756                 goto fail_unlock;
 757         }
 758
 759         if (priv->status & STATUS_CMD_ACTIVE) {
 760                 IPW_DEBUG_INFO
 761                     ("Attempt to send command while another command is pending.\n");
 762                 err = -EBUSY;
 763                 goto fail_unlock;
 764         }
 765
 766         if (list_empty(&priv->msg_free_list)) {
 767                 IPW_DEBUG_INFO("no available msg buffers\n");
 768                 goto fail_unlock;
 769         }
 770
 771         priv->status |= STATUS_CMD_ACTIVE;
 772         priv->messages_sent++;
 773
 774         element = priv->msg_free_list.next;
 775
 776         packet = list_entry(element, struct ipw2100_tx_packet, list);
 777         packet->jiffy_start = jiffies;
 778
 779         /* initialize the firmware command packet */
 780         packet->info.c_struct.cmd->host_command_reg = cmd->host_command;
 781         packet->info.c_struct.cmd->host_command_reg1 = cmd->host_command1;
 782         packet->info.c_struct.cmd->host_command_len_reg =
 783             cmd->host_command_length;
 784         packet->info.c_struct.cmd->sequence = cmd->host_command_sequence;
 785
 786         memcpy(packet->info.c_struct.cmd->host_command_params_reg,
 787                cmd->host_command_parameters,
 788                sizeof(packet->info.c_struct.cmd->host_command_params_reg));
 789
 790         list_del(element);
 791         DEC_STAT(&priv->msg_free_stat);
 792
 793         list_add_tail(element, &priv->msg_pend_list);
 794         INC_STAT(&priv->msg_pend_stat);
 795
 796         ipw2100_tx_send_commands(priv);
 797         ipw2100_tx_send_data(priv);
 798
 799         spin_unlock_irqrestore(&priv->low_lock, flags);
 800
 801         /*
 802          * We must wait for this command to complete before another
 803          * command can be sent...  but if we wait more than 3 seconds
 804          * then there is a problem.
 805          */
 806
 807         err =
 808             wait_event_interruptible_timeout(priv->wait_command_queue,
 809                                              !(priv->
 810                                                status & STATUS_CMD_ACTIVE),
 811                                              HOST_COMPLETE_TIMEOUT);
 812
 813         if (err == 0) {
 814                 IPW_DEBUG_INFO("Command completion failed out after %dms.\n",
 815                                1000 * (HOST_COMPLETE_TIMEOUT / HZ));
 816                 priv->fatal_error = IPW2100_ERR_MSG_TIMEOUT;
 817                 priv->status &= ~STATUS_CMD_ACTIVE;
 818                 schedule_reset(priv);
 819                 return -EIO;
 820         }
 821
 822         if (priv->fatal_error) {
 823                 printk(KERN_WARNING DRV_NAME ": %s: firmware fatal error\n",
 824                        priv->net_dev->name);
 825                 return -EIO;
 826         }
 827
 828         /* !!!!! HACK TEST !!!!!
 829          * When lots of debug trace statements are enabled, the driver
 830          * doesn't seem to have as many firmware restart cycles...
 831          *
 832          * As a test, we're sticking in a 1/100s delay here */
 833         schedule_timeout_uninterruptible(msecs_to_jiffies(10));
 834
 835         return 0;
 836
 837       fail_unlock:
 838         spin_unlock_irqrestore(&priv->low_lock, flags);
 839
 840         return err;
 841 }
 842
 843 /*
 844  * Verify the values and data access of the hardware
 845  * No locks needed or used.  No functions called.
 846  */
 847 static int ipw2100_verify(struct ipw2100_priv *priv)
 848 {
 849         u32 data1, data2;
 850         u32 address;
 851
 852         u32 val1 = 0x76543210;
 853         u32 val2 = 0xFEDCBA98;
 854
 855         /* Domain 0 check - all values should be DOA_DEBUG */
 856         for (address = IPW_REG_DOA_DEBUG_AREA_START;
 857              address < IPW_REG_DOA_DEBUG_AREA_END; address += sizeof(u32)) {
 858                 read_register(priv->net_dev, address, &data1);
 859                 if (data1 != IPW_DATA_DOA_DEBUG_VALUE)
 860                         return -EIO;
 861         }
 862
 863         /* Domain 1 check - use arbitrary read/write compare  */
 864         for (address = 0; address < 5; address++) {
 865                 /* The memory area is not used now */
 866                 write_register(priv->net_dev, IPW_REG_DOMAIN_1_OFFSET + 0x32,
 867                                val1);
 868                 write_register(priv->net_dev, IPW_REG_DOMAIN_1_OFFSET + 0x36,
 869                                val2);
 870                 read_register(priv->net_dev, IPW_REG_DOMAIN_1_OFFSET + 0x32,
 871                               &data1);
 872                 read_register(priv->net_dev, IPW_REG_DOMAIN_1_OFFSET + 0x36,
 873                               &data2);
 874                 if (val1 == data1 && val2 == data2)
 875                         return 0;
 876         }
 877
 878         return -EIO;
 879 }
 880
 881 /*
 882  *
 883  * Loop until the CARD_DISABLED bit is the same value as the
 884  * supplied parameter
 885  *
 886  * TODO: See if it would be more efficient to do a wait/wake
 887  *       cycle and have the completion event trigger the wakeup
 888  *
 889  */
 890 #define IPW_CARD_DISABLE_COMPLETE_WAIT              100 // 100 milli
 891 static int ipw2100_wait_for_card_state(struct ipw2100_priv *priv, int state)
 892 {
 893         int i;
 894         u32 card_state;
 895         u32 len = sizeof(card_state);
 896         int err;
 897
 898         for (i = 0; i <= IPW_CARD_DISABLE_COMPLETE_WAIT * 1000; i += 50) {
 899                 err = ipw2100_get_ordinal(priv, IPW_ORD_CARD_DISABLED,
 900                                           &card_state, &len);
 901                 if (err) {
 902                         IPW_DEBUG_INFO("Query of CARD_DISABLED ordinal "
 903                                        "failed.\n");
 904                         return 0;
 905                 }
 906
 907                 /* We'll break out if either the HW state says it is
 908                  * in the state we want, or if HOST_COMPLETE command
 909                  * finishes */
 910                 if ((card_state == state) ||
 911                     ((priv->status & STATUS_ENABLED) ?
 912                      IPW_HW_STATE_ENABLED : IPW_HW_STATE_DISABLED) == state) {
 913                         if (state == IPW_HW_STATE_ENABLED)
 914                                 priv->status |= STATUS_ENABLED;
 915                         else
 916                                 priv->status &= ~STATUS_ENABLED;
 917
 918                         return 0;
 919                 }
 920
 921                 udelay(50);
 922         }
 923
 924         IPW_DEBUG_INFO("ipw2100_wait_for_card_state to %s state timed out\n",
 925                        state ? "DISABLED" : "ENABLED");
 926         return -EIO;
 927 }
 928
 929 /*********************************************************************
 930     Procedure   :   sw_reset_and_clock
 931     Purpose     :   Asserts s/w reset, asserts clock initialization
 932                     and waits for clock stabilization
 933  ********************************************************************/
 934 static int sw_reset_and_clock(struct ipw2100_priv *priv)
 935 {
 936         int i;
 937         u32 r;
 938
 939         // assert s/w reset
 940         write_register(priv->net_dev, IPW_REG_RESET_REG,
 941                        IPW_AUX_HOST_RESET_REG_SW_RESET);
 942
 943         // wait for clock stabilization
 944         for (i = 0; i < 1000; i++) {
 945                 udelay(IPW_WAIT_RESET_ARC_COMPLETE_DELAY);
 946
 947                 // check clock ready bit
 948                 read_register(priv->net_dev, IPW_REG_RESET_REG, &r);
 949                 if (r & IPW_AUX_HOST_RESET_REG_PRINCETON_RESET)
 950                         break;
 951         }
 952
 953         if (i == 1000)
 954                 return -EIO;    // TODO: better error value
 955
 956         /* set "initialization complete" bit to move adapter to
 957          * D0 state */
 958         write_register(priv->net_dev, IPW_REG_GP_CNTRL,
 959                        IPW_AUX_HOST_GP_CNTRL_BIT_INIT_DONE);
 960
 961         /* wait for clock stabilization */
 962         for (i = 0; i < 10000; i++) {
 963                 udelay(IPW_WAIT_CLOCK_STABILIZATION_DELAY * 4);
 964
 965                 /* check clock ready bit */
 966                 read_register(priv->net_dev, IPW_REG_GP_CNTRL, &r);
 967                 if (r & IPW_AUX_HOST_GP_CNTRL_BIT_CLOCK_READY)
 968                         break;
 969         }
 970
 971         if (i == 10000)
 972                 return -EIO;    /* TODO: better error value */
 973
 974         /* set D0 standby bit */
 975         read_register(priv->net_dev, IPW_REG_GP_CNTRL, &r);
 976         write_register(priv->net_dev, IPW_REG_GP_CNTRL,
 977                        r | IPW_AUX_HOST_GP_CNTRL_BIT_HOST_ALLOWS_STANDBY);
 978
 979         return 0;
 980 }
 981
 982 /*********************************************************************
 983     Procedure   :   ipw2100_download_firmware
 984     Purpose     :   Initiaze adapter after power on.
 985                     The sequence is:
 986                     1. assert s/w reset first!
 987                     2. awake clocks & wait for clock stabilization
 988                     3. hold ARC (don't ask me why...)
 989                     4. load Dino ucode and reset/clock init again
 990                     5. zero-out shared mem
 991                     6. download f/w
 992  *******************************************************************/
 993 static int ipw2100_download_firmware(struct ipw2100_priv *priv)
 994 {
 995         u32 address;
 996         int err;
 997
 998 #ifndef CONFIG_PM
 999         /* Fetch the firmware and microcode */
1000         struct ipw2100_fw ipw2100_firmware;
1001 #endif
1002
1003         if (priv->fatal_error) {
1004                 IPW_DEBUG_ERROR("%s: ipw2100_download_firmware called after "
1005                                 "fatal error %d.  Interface must be brought down.\n",
1006                                 priv->net_dev->name, priv->fatal_error);
1007                 return -EINVAL;
1008         }
1009 #ifdef CONFIG_PM
1010         if (!ipw2100_firmware.version) {
1011                 err = ipw2100_get_firmware(priv, &ipw2100_firmware);
1012                 if (err) {
1013                         IPW_DEBUG_ERROR("%s: ipw2100_get_firmware failed: %d\n",
1014                                         priv->net_dev->name, err);
1015                         priv->fatal_error = IPW2100_ERR_FW_LOAD;
1016                         goto fail;
1017                 }
1018         }
1019 #else
1020         err = ipw2100_get_firmware(priv, &ipw2100_firmware);
1021         if (err) {
1022                 IPW_DEBUG_ERROR("%s: ipw2100_get_firmware failed: %d\n",
1023                                 priv->net_dev->name, err);
1024                 priv->fatal_error = IPW2100_ERR_FW_LOAD;
1025                 goto fail;
1026         }
1027 #endif
1028         priv->firmware_version = ipw2100_firmware.version;
1029
1030         /* s/w reset and clock stabilization */
1031         err = sw_reset_and_clock(priv);
1032         if (err) {
1033                 IPW_DEBUG_ERROR("%s: sw_reset_and_clock failed: %d\n",
1034                                 priv->net_dev->name, err);
1035                 goto fail;
1036         }
1037
1038         err = ipw2100_verify(priv);
1039         if (err) {
1040                 IPW_DEBUG_ERROR("%s: ipw2100_verify failed: %d\n",
1041                                 priv->net_dev->name, err);
1042                 goto fail;
1043         }
1044
1045         /* Hold ARC */
1046         write_nic_dword(priv->net_dev,
1047                         IPW_INTERNAL_REGISTER_HALT_AND_RESET, 0x80000000);
1048
1049         /* allow ARC to run */
1050         write_register(priv->net_dev, IPW_REG_RESET_REG, 0);
1051
1052         /* load microcode */
1053         err = ipw2100_ucode_download(priv, &ipw2100_firmware);
1054         if (err) {
1055                 printk(KERN_ERR DRV_NAME ": %s: Error loading microcode: %d\n",
1056                        priv->net_dev->name, err);
1057                 goto fail;
1058         }
1059
1060         /* release ARC */
1061         write_nic_dword(priv->net_dev,
1062                         IPW_INTERNAL_REGISTER_HALT_AND_RESET, 0x00000000);
1063
1064         /* s/w reset and clock stabilization (again!!!) */
1065         err = sw_reset_and_clock(priv);
1066         if (err) {
1067                 printk(KERN_ERR DRV_NAME
1068                        ": %s: sw_reset_and_clock failed: %d\n",
1069                        priv->net_dev->name, err);
1070                 goto fail;
1071         }
1072
1073         /* load f/w */
1074         err = ipw2100_fw_download(priv, &ipw2100_firmware);
1075         if (err) {
1076                 IPW_DEBUG_ERROR("%s: Error loading firmware: %d\n",
1077                                 priv->net_dev->name, err);
1078                 goto fail;
1079         }
1080 #ifndef CONFIG_PM
1081         /*
1082          * When the .resume method of the driver is called, the other
1083          * part of the system, i.e. the ide driver could still stay in
1084          * the suspend stage. This prevents us from loading the firmware
1085          * from the disk.  --YZ
1086          */
1087
1088         /* free any storage allocated for firmware image */
1089         ipw2100_release_firmware(priv, &ipw2100_firmware);
1090 #endif
1091
1092         /* zero out Domain 1 area indirectly (Si requirement) */
1093         for (address = IPW_HOST_FW_SHARED_AREA0;
1094              address < IPW_HOST_FW_SHARED_AREA0_END; address += 4)
1095                 write_nic_dword(priv->net_dev, address, 0);
1096         for (address = IPW_HOST_FW_SHARED_AREA1;
1097              address < IPW_HOST_FW_SHARED_AREA1_END; address += 4)
1098                 write_nic_dword(priv->net_dev, address, 0);
1099         for (address = IPW_HOST_FW_SHARED_AREA2;
1100              address < IPW_HOST_FW_SHARED_AREA2_END; address += 4)
1101                 write_nic_dword(priv->net_dev, address, 0);
1102         for (address = IPW_HOST_FW_SHARED_AREA3;
1103              address < IPW_HOST_FW_SHARED_AREA3_END; address += 4)
1104                 write_nic_dword(priv->net_dev, address, 0);
1105         for (address = IPW_HOST_FW_INTERRUPT_AREA;
1106              address < IPW_HOST_FW_INTERRUPT_AREA_END; address += 4)
1107                 write_nic_dword(priv->net_dev, address, 0);
1108
1109         return 0;
1110
1111       fail:
1112         ipw2100_release_firmware(priv, &ipw2100_firmware);
1113         return err;
1114 }
1115
1116 static inline void ipw2100_enable_interrupts(struct ipw2100_priv *priv)
1117 {
1118         if (priv->status & STATUS_INT_ENABLED)
1119                 return;
1120         priv->status |= STATUS_INT_ENABLED;
1121         write_register(priv->net_dev, IPW_REG_INTA_MASK, IPW_INTERRUPT_MASK);
1122 }
1123
1124 static inline void ipw2100_disable_interrupts(struct ipw2100_priv *priv)
1125 {
1126         if (!(priv->status & STATUS_INT_ENABLED))
1127                 return;
1128         priv->status &= ~STATUS_INT_ENABLED;
1129         write_register(priv->net_dev, IPW_REG_INTA_MASK, 0x0);
1130 }
1131
1132 static void ipw2100_initialize_ordinals(struct ipw2100_priv *priv)
1133 {
1134         struct ipw2100_ordinals *ord = &priv->ordinals;
1135
1136         IPW_DEBUG_INFO("enter\n");
1137
1138         read_register(priv->net_dev, IPW_MEM_HOST_SHARED_ORDINALS_TABLE_1,
1139                       &ord->table1_addr);
1140
1141         read_register(priv->net_dev, IPW_MEM_HOST_SHARED_ORDINALS_TABLE_2,
1142                       &ord->table2_addr);
1143
1144         read_nic_dword(priv->net_dev, ord->table1_addr, &ord->table1_size);
1145         read_nic_dword(priv->net_dev, ord->table2_addr, &ord->table2_size);
1146
1147         ord->table2_size &= 0x0000FFFF;
1148
1149         IPW_DEBUG_INFO("table 1 size: %d\n", ord->table1_size);
1150         IPW_DEBUG_INFO("table 2 size: %d\n", ord->table2_size);
1151         IPW_DEBUG_INFO("exit\n");
1152 }
1153
1154 static inline void ipw2100_hw_set_gpio(struct ipw2100_priv *priv)
1155 {
1156         u32 reg = 0;
1157         /*
1158          * Set GPIO 3 writable by FW; GPIO 1 writable
1159          * by driver and enable clock
1160          */
1161         reg = (IPW_BIT_GPIO_GPIO3_MASK | IPW_BIT_GPIO_GPIO1_ENABLE |
1162                IPW_BIT_GPIO_LED_OFF);
1163         write_register(priv->net_dev, IPW_REG_GPIO, reg);
1164 }
1165
1166 static int rf_kill_active(struct ipw2100_priv *priv)
1167 {
1168 #define MAX_RF_KILL_CHECKS 5
1169 #define RF_KILL_CHECK_DELAY 40
1170
1171         unsigned short value = 0;
1172         u32 reg = 0;
1173         int i;
1174
1175         if (!(priv->hw_features & HW_FEATURE_RFKILL)) {
1176                 wiphy_rfkill_set_hw_state(priv->ieee->wdev.wiphy, false);
1177                 priv->status &= ~STATUS_RF_KILL_HW;
1178                 return 0;
1179         }
1180
1181         for (i = 0; i < MAX_RF_KILL_CHECKS; i++) {
1182                 udelay(RF_KILL_CHECK_DELAY);
1183                 read_register(priv->net_dev, IPW_REG_GPIO, &reg);
1184                 value = (value << 1) | ((reg & IPW_BIT_GPIO_RF_KILL) ? 0 : 1);
1185         }
1186
1187         if (value == 0) {
1188                 wiphy_rfkill_set_hw_state(priv->ieee->wdev.wiphy, true);
1189                 priv->status |= STATUS_RF_KILL_HW;
1190         } else {
1191                 wiphy_rfkill_set_hw_state(priv->ieee->wdev.wiphy, false);
1192                 priv->status &= ~STATUS_RF_KILL_HW;
1193         }
1194
1195         return (value == 0);
1196 }
1197
1198 static int ipw2100_get_hw_features(struct ipw2100_priv *priv)
1199 {
1200         u32 addr, len;
1201         u32 val;
1202
1203         /*
1204          * EEPROM_SRAM_DB_START_ADDRESS using ordinal in ordinal table 1
1205          */
1206         len = sizeof(addr);
1207         if (ipw2100_get_ordinal
1208             (priv, IPW_ORD_EEPROM_SRAM_DB_BLOCK_START_ADDRESS, &addr, &len)) {
1209                 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
1210                                __LINE__);
1211                 return -EIO;
1212         }
1213
1214         IPW_DEBUG_INFO("EEPROM address: %08X\n", addr);
1215
1216         /*
1217          * EEPROM version is the byte at offset 0xfd in firmware
1218          * We read 4 bytes, then shift out the byte we actually want */
1219         read_nic_dword(priv->net_dev, addr + 0xFC, &val);
1220         priv->eeprom_version = (val >> 24) & 0xFF;
1221         IPW_DEBUG_INFO("EEPROM version: %d\n", priv->eeprom_version);
1222
1223         /*
1224          *  HW RF Kill enable is bit 0 in byte at offset 0x21 in firmware
1225          *
1226          *  notice that the EEPROM bit is reverse polarity, i.e.
1227          *     bit = 0  signifies HW RF kill switch is supported
1228          *     bit = 1  signifies HW RF kill switch is NOT supported
1229          */
1230         read_nic_dword(priv->net_dev, addr + 0x20, &val);
1231         if (!((val >> 24) & 0x01))
1232                 priv->hw_features |= HW_FEATURE_RFKILL;
1233
1234         IPW_DEBUG_INFO("HW RF Kill: %ssupported.\n",
1235                        (priv->hw_features & HW_FEATURE_RFKILL) ? "" : "not ");
1236
1237         return 0;
1238 }
1239
1240 /*
1241  * Start firmware execution after power on and initialization
1242  * The sequence is:
1243  *  1. Release ARC
1244  *  2. Wait for f/w initialization completes;
1245  */
1246 static int ipw2100_start_adapter(struct ipw2100_priv *priv)
1247 {
1248         int i;
1249         u32 inta, inta_mask, gpio;
1250
1251         IPW_DEBUG_INFO("enter\n");
1252
1253         if (priv->status & STATUS_RUNNING)
1254                 return 0;
1255
1256         /*
1257          * Initialize the hw - drive adapter to DO state by setting
1258          * init_done bit. Wait for clk_ready bit and Download
1259          * fw & dino ucode
1260          */
1261         if (ipw2100_download_firmware(priv)) {
1262                 printk(KERN_ERR DRV_NAME
1263                        ": %s: Failed to power on the adapter.\n",
1264                        priv->net_dev->name);
1265                 return -EIO;
1266         }
1267
1268         /* Clear the Tx, Rx and Msg queues and the r/w indexes
1269          * in the firmware RBD and TBD ring queue */
1270         ipw2100_queues_initialize(priv);
1271
1272         ipw2100_hw_set_gpio(priv);
1273
1274         /* TODO -- Look at disabling interrupts here to make sure none
1275          * get fired during FW initialization */
1276
1277         /* Release ARC - clear reset bit */
1278         write_register(priv->net_dev, IPW_REG_RESET_REG, 0);
1279
1280         /* wait for f/w initialization complete */
1281         IPW_DEBUG_FW("Waiting for f/w initialization to complete...\n");
1282         i = 5000;
1283         do {
1284                 schedule_timeout_uninterruptible(msecs_to_jiffies(40));
1285                 /* Todo... wait for sync command ... */
1286
1287                 read_register(priv->net_dev, IPW_REG_INTA, &inta);
1288
1289                 /* check "init done" bit */
1290                 if (inta & IPW2100_INTA_FW_INIT_DONE) {
1291                         /* reset "init done" bit */
1292                         write_register(priv->net_dev, IPW_REG_INTA,
1293                                        IPW2100_INTA_FW_INIT_DONE);
1294                         break;
1295                 }
1296
1297                 /* check error conditions : we check these after the firmware
1298                  * check so that if there is an error, the interrupt handler
1299                  * will see it and the adapter will be reset */
1300                 if (inta &
1301                     (IPW2100_INTA_FATAL_ERROR | IPW2100_INTA_PARITY_ERROR)) {
1302                         /* clear error conditions */
1303                         write_register(priv->net_dev, IPW_REG_INTA,
1304                                        IPW2100_INTA_FATAL_ERROR |
1305                                        IPW2100_INTA_PARITY_ERROR);
1306                 }
1307         } while (--i);
1308
1309         /* Clear out any pending INTAs since we aren't supposed to have
1310          * interrupts enabled at this point... */
1311         read_register(priv->net_dev, IPW_REG_INTA, &inta);
1312         read_register(priv->net_dev, IPW_REG_INTA_MASK, &inta_mask);
1313         inta &= IPW_INTERRUPT_MASK;
1314         /* Clear out any pending interrupts */
1315         if (inta & inta_mask)
1316                 write_register(priv->net_dev, IPW_REG_INTA, inta);
1317
1318         IPW_DEBUG_FW("f/w initialization complete: %s\n",
1319                      i ? "SUCCESS" : "FAILED");
1320
1321         if (!i) {
1322                 printk(KERN_WARNING DRV_NAME
1323                        ": %s: Firmware did not initialize.\n",
1324                        priv->net_dev->name);
1325                 return -EIO;
1326         }
1327
1328         /* allow firmware to write to GPIO1 & GPIO3 */
1329         read_register(priv->net_dev, IPW_REG_GPIO, &gpio);
1330
1331         gpio |= (IPW_BIT_GPIO_GPIO1_MASK | IPW_BIT_GPIO_GPIO3_MASK);
1332
1333         write_register(priv->net_dev, IPW_REG_GPIO, gpio);
1334
1335         /* Ready to receive commands */
1336         priv->status |= STATUS_RUNNING;
1337
1338         /* The adapter has been reset; we are not associated */
1339         priv->status &= ~(STATUS_ASSOCIATING | STATUS_ASSOCIATED);
1340
1341         IPW_DEBUG_INFO("exit\n");
1342
1343         return 0;
1344 }
1345
1346 static inline void ipw2100_reset_fatalerror(struct ipw2100_priv *priv)
1347 {
1348         if (!priv->fatal_error)
1349                 return;
1350
1351         priv->fatal_errors[priv->fatal_index++] = priv->fatal_error;
1352         priv->fatal_index %= IPW2100_ERROR_QUEUE;
1353         priv->fatal_error = 0;
1354 }
1355
1356 /* NOTE: Our interrupt is disabled when this method is called */
1357 static int ipw2100_power_cycle_adapter(struct ipw2100_priv *priv)
1358 {
1359         u32 reg;
1360         int i;
1361
1362         IPW_DEBUG_INFO("Power cycling the hardware.\n");
1363
1364         ipw2100_hw_set_gpio(priv);
1365
1366         /* Step 1. Stop Master Assert */
1367         write_register(priv->net_dev, IPW_REG_RESET_REG,
1368                        IPW_AUX_HOST_RESET_REG_STOP_MASTER);
1369
1370         /* Step 2. Wait for stop Master Assert
1371          *         (not more than 50us, otherwise ret error */
1372         i = 5;
1373         do {
1374                 udelay(IPW_WAIT_RESET_MASTER_ASSERT_COMPLETE_DELAY);
1375                 read_register(priv->net_dev, IPW_REG_RESET_REG, &reg);
1376
1377                 if (reg & IPW_AUX_HOST_RESET_REG_MASTER_DISABLED)
1378                         break;
1379         } while (--i);
1380
1381         priv->status &= ~STATUS_RESET_PENDING;
1382
1383         if (!i) {
1384                 IPW_DEBUG_INFO
1385                     ("exit - waited too long for master assert stop\n");
1386                 return -EIO;
1387         }
1388
1389         write_register(priv->net_dev, IPW_REG_RESET_REG,
1390                        IPW_AUX_HOST_RESET_REG_SW_RESET);
1391
1392         /* Reset any fatal_error conditions */
1393         ipw2100_reset_fatalerror(priv);
1394
1395         /* At this point, the adapter is now stopped and disabled */
1396         priv->status &= ~(STATUS_RUNNING | STATUS_ASSOCIATING |
1397                           STATUS_ASSOCIATED | STATUS_ENABLED);
1398
1399         return 0;
1400 }
1401
1402 /*
1403  * Send the CARD_DISABLE_PHY_OFF command to the card to disable it
1404  *
1405  * After disabling, if the card was associated, a STATUS_ASSN_LOST will be sent.
1406  *
1407  * STATUS_CARD_DISABLE_NOTIFICATION will be sent regardless of
1408  * if STATUS_ASSN_LOST is sent.
1409  */
1410 static int ipw2100_hw_phy_off(struct ipw2100_priv *priv)
1411 {
1412
1413 #define HW_PHY_OFF_LOOP_DELAY (msecs_to_jiffies(50))
1414
1415         struct host_command cmd = {
1416                 .host_command = CARD_DISABLE_PHY_OFF,
1417                 .host_command_sequence = 0,
1418                 .host_command_length = 0,
1419         };
1420         int err, i;
1421         u32 val1, val2;
1422
1423         IPW_DEBUG_HC("CARD_DISABLE_PHY_OFF\n");
1424
1425         /* Turn off the radio */
1426         err = ipw2100_hw_send_command(priv, &cmd);
1427         if (err)
1428                 return err;
1429
1430         for (i = 0; i < 2500; i++) {
1431                 read_nic_dword(priv->net_dev, IPW2100_CONTROL_REG, &val1);
1432                 read_nic_dword(priv->net_dev, IPW2100_COMMAND, &val2);
1433
1434                 if ((val1 & IPW2100_CONTROL_PHY_OFF) &&
1435                     (val2 & IPW2100_COMMAND_PHY_OFF))
1436                         return 0;
1437
1438                 schedule_timeout_uninterruptible(HW_PHY_OFF_LOOP_DELAY);
1439         }
1440
1441         return -EIO;
1442 }
1443
1444 static int ipw2100_enable_adapter(struct ipw2100_priv *priv)
1445 {
1446         struct host_command cmd = {
1447                 .host_command = HOST_COMPLETE,
1448                 .host_command_sequence = 0,
1449                 .host_command_length = 0
1450         };
1451         int err = 0;
1452
1453         IPW_DEBUG_HC("HOST_COMPLETE\n");
1454
1455         if (priv->status & STATUS_ENABLED)
1456                 return 0;
1457
1458         mutex_lock(&priv->adapter_mutex);
1459
1460         if (rf_kill_active(priv)) {
1461                 IPW_DEBUG_HC("Command aborted due to RF kill active.\n");
1462                 goto fail_up;
1463         }
1464
1465         err = ipw2100_hw_send_command(priv, &cmd);
1466         if (err) {
1467                 IPW_DEBUG_INFO("Failed to send HOST_COMPLETE command\n");
1468                 goto fail_up;
1469         }
1470
1471         err = ipw2100_wait_for_card_state(priv, IPW_HW_STATE_ENABLED);
1472         if (err) {
1473                 IPW_DEBUG_INFO("%s: card not responding to init command.\n",
1474                                priv->net_dev->name);
1475                 goto fail_up;
1476         }
1477
1478         if (priv->stop_hang_check) {
1479                 priv->stop_hang_check = 0;
1480                 schedule_delayed_work(&priv->hang_check, HZ / 2);
1481         }
1482
1483       fail_up:
1484         mutex_unlock(&priv->adapter_mutex);
1485         return err;
1486 }
1487
1488 static int ipw2100_hw_stop_adapter(struct ipw2100_priv *priv)
1489 {
1490 #define HW_POWER_DOWN_DELAY (msecs_to_jiffies(100))
1491
1492         struct host_command cmd = {
1493                 .host_command = HOST_PRE_POWER_DOWN,
1494                 .host_command_sequence = 0,
1495                 .host_command_length = 0,
1496         };
1497         int err, i;
1498         u32 reg;
1499
1500         if (!(priv->status & STATUS_RUNNING))
1501                 return 0;
1502
1503         priv->status |= STATUS_STOPPING;
1504
1505         /* We can only shut down the card if the firmware is operational.  So,
1506          * if we haven't reset since a fatal_error, then we can not send the
1507          * shutdown commands. */
1508         if (!priv->fatal_error) {
1509                 /* First, make sure the adapter is enabled so that the PHY_OFF
1510                  * command can shut it down */
1511                 ipw2100_enable_adapter(priv);
1512
1513                 err = ipw2100_hw_phy_off(priv);
1514                 if (err)
1515                         printk(KERN_WARNING DRV_NAME
1516                                ": Error disabling radio %d\n", err);
1517
1518                 /*
1519                  * If in D0-standby mode going directly to D3 may cause a
1520                  * PCI bus violation.  Therefore we must change out of the D0
1521                  * state.
1522                  *
1523                  * Sending the PREPARE_FOR_POWER_DOWN will restrict the
1524                  * hardware from going into standby mode and will transition
1525                  * out of D0-standby if it is already in that state.
1526                  *
1527                  * STATUS_PREPARE_POWER_DOWN_COMPLETE will be sent by the
1528                  * driver upon completion.  Once received, the driver can
1529                  * proceed to the D3 state.
1530                  *
1531                  * Prepare for power down command to fw.  This command would
1532                  * take HW out of D0-standby and prepare it for D3 state.
1533                  *
1534                  * Currently FW does not support event notification for this
1535                  * event. Therefore, skip waiting for it.  Just wait a fixed
1536                  * 100ms
1537                  */
1538                 IPW_DEBUG_HC("HOST_PRE_POWER_DOWN\n");
1539
1540                 err = ipw2100_hw_send_command(priv, &cmd);
1541                 if (err)
1542                         printk(KERN_WARNING DRV_NAME ": "
1543                                "%s: Power down command failed: Error %d\n",
1544                                priv->net_dev->name, err);
1545                 else
1546                         schedule_timeout_uninterruptible(HW_POWER_DOWN_DELAY);
1547         }
1548
1549         priv->status &= ~STATUS_ENABLED;
1550
1551         /*
1552          * Set GPIO 3 writable by FW; GPIO 1 writable
1553          * by driver and enable clock
1554          */
1555         ipw2100_hw_set_gpio(priv);
1556
1557         /*
1558          * Power down adapter.  Sequence:
1559          * 1. Stop master assert (RESET_REG[9]=1)
1560          * 2. Wait for stop master (RESET_REG[8]==1)
1561          * 3. S/w reset assert (RESET_REG[7] = 1)
1562          */
1563
1564         /* Stop master assert */
1565         write_register(priv->net_dev, IPW_REG_RESET_REG,
1566                        IPW_AUX_HOST_RESET_REG_STOP_MASTER);
1567
1568         /* wait stop master not more than 50 usec.
1569          * Otherwise return error. */
1570         for (i = 5; i > 0; i--) {
1571                 udelay(10);
1572
1573                 /* Check master stop bit */
1574                 read_register(priv->net_dev, IPW_REG_RESET_REG, &reg);
1575
1576                 if (reg & IPW_AUX_HOST_RESET_REG_MASTER_DISABLED)
1577                         break;
1578         }
1579
1580         if (i == 0)
1581                 printk(KERN_WARNING DRV_NAME
1582                        ": %s: Could now power down adapter.\n",
1583                        priv->net_dev->name);
1584
1585         /* assert s/w reset */
1586         write_register(priv->net_dev, IPW_REG_RESET_REG,
1587                        IPW_AUX_HOST_RESET_REG_SW_RESET);
1588
1589         priv->status &= ~(STATUS_RUNNING | STATUS_STOPPING);
1590
1591         return 0;
1592 }
1593
1594 static int ipw2100_disable_adapter(struct ipw2100_priv *priv)
1595 {
1596         struct host_command cmd = {
1597                 .host_command = CARD_DISABLE,
1598                 .host_command_sequence = 0,
1599                 .host_command_length = 0
1600         };
1601         int err = 0;
1602
1603         IPW_DEBUG_HC("CARD_DISABLE\n");
1604
1605         if (!(priv->status & STATUS_ENABLED))
1606                 return 0;
1607
1608         /* Make sure we clear the associated state */
1609         priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING);
1610
1611         if (!priv->stop_hang_check) {
1612                 priv->stop_hang_check = 1;
1613                 cancel_delayed_work(&priv->hang_check);
1614         }
1615
1616         mutex_lock(&priv->adapter_mutex);
1617
1618         err = ipw2100_hw_send_command(priv, &cmd);
1619         if (err) {
1620                 printk(KERN_WARNING DRV_NAME
1621                        ": exit - failed to send CARD_DISABLE command\n");
1622                 goto fail_up;
1623         }
1624
1625         err = ipw2100_wait_for_card_state(priv, IPW_HW_STATE_DISABLED);
1626         if (err) {
1627                 printk(KERN_WARNING DRV_NAME
1628                        ": exit - card failed to change to DISABLED\n");
1629                 goto fail_up;
1630         }
1631
1632         IPW_DEBUG_INFO("TODO: implement scan state machine\n");
1633
1634       fail_up:
1635         mutex_unlock(&priv->adapter_mutex);
1636         return err;
1637 }
1638
1639 static int ipw2100_set_scan_options(struct ipw2100_priv *priv)
1640 {
1641         struct host_command cmd = {
1642                 .host_command = SET_SCAN_OPTIONS,
1643                 .host_command_sequence = 0,
1644                 .host_command_length = 8
1645         };
1646         int err;
1647
1648         IPW_DEBUG_INFO("enter\n");
1649
1650         IPW_DEBUG_SCAN("setting scan options\n");
1651
1652         cmd.host_command_parameters[0] = 0;
1653
1654         if (!(priv->config & CFG_ASSOCIATE))
1655                 cmd.host_command_parameters[0] |= IPW_SCAN_NOASSOCIATE;
1656         if ((priv->ieee->sec.flags & SEC_ENABLED) && priv->ieee->sec.enabled)
1657                 cmd.host_command_parameters[0] |= IPW_SCAN_MIXED_CELL;
1658         if (priv->config & CFG_PASSIVE_SCAN)
1659                 cmd.host_command_parameters[0] |= IPW_SCAN_PASSIVE;
1660
1661         cmd.host_command_parameters[1] = priv->channel_mask;
1662
1663         err = ipw2100_hw_send_command(priv, &cmd);
1664
1665         IPW_DEBUG_HC("SET_SCAN_OPTIONS 0x%04X\n",
1666                      cmd.host_command_parameters[0]);
1667
1668         return err;
1669 }
1670
1671 static int ipw2100_start_scan(struct ipw2100_priv *priv)
1672 {
1673         struct host_command cmd = {
1674                 .host_command = BROADCAST_SCAN,
1675                 .host_command_sequence = 0,
1676                 .host_command_length = 4
1677         };
1678         int err;
1679
1680         IPW_DEBUG_HC("START_SCAN\n");
1681
1682         cmd.host_command_parameters[0] = 0;
1683
1684         /* No scanning if in monitor mode */
1685         if (priv->ieee->iw_mode == IW_MODE_MONITOR)
1686                 return 1;
1687
1688         if (priv->status & STATUS_SCANNING) {
1689                 IPW_DEBUG_SCAN("Scan requested while already in scan...\n");
1690                 return 0;
1691         }
1692
1693         IPW_DEBUG_INFO("enter\n");
1694
1695         /* Not clearing here; doing so makes iwlist always return nothing...
1696          *
1697          * We should modify the table logic to use aging tables vs. clearing
1698          * the table on each scan start.
1699          */
1700         IPW_DEBUG_SCAN("starting scan\n");
1701
1702         priv->status |= STATUS_SCANNING;
1703         err = ipw2100_hw_send_command(priv, &cmd);
1704         if (err)
1705                 priv->status &= ~STATUS_SCANNING;
1706
1707         IPW_DEBUG_INFO("exit\n");
1708
1709         return err;
1710 }
1711
1712 static const struct libipw_geo ipw_geos[] = {
1713         {                       /* Restricted */
1714          "---",
1715          .bg_channels = 14,
1716          .bg = {{2412, 1}, {2417, 2}, {2422, 3},
1717                 {2427, 4}, {2432, 5}, {2437, 6},
1718                 {2442, 7}, {2447, 8}, {2452, 9},
1719                 {2457, 10}, {2462, 11}, {2467, 12},
1720                 {2472, 13}, {2484, 14}},
1721          },
1722 };
1723
1724 static int ipw2100_up(struct ipw2100_priv *priv, int deferred)
1725 {
1726         unsigned long flags;
1727         int err = 0;
1728         u32 lock;
1729         u32 ord_len = sizeof(lock);
1730
1731         /* Age scan list entries found before suspend */
1732         if (priv->suspend_time) {
1733                 libipw_networks_age(priv->ieee, priv->suspend_time);
1734                 priv->suspend_time = 0;
1735         }
1736
1737         /* Quiet if manually disabled. */
1738         if (priv->status & STATUS_RF_KILL_SW) {
1739                 IPW_DEBUG_INFO("%s: Radio is disabled by Manual Disable "
1740                                "switch\n", priv->net_dev->name);
1741                 return 0;
1742         }
1743
1744         /* the ipw2100 hardware really doesn't want power management delays
1745          * longer than 175usec
1746          */
1747         pm_qos_update_request(&ipw2100_pm_qos_req, 175);
1748
1749         /* If the interrupt is enabled, turn it off... */
1750         spin_lock_irqsave(&priv->low_lock, flags);
1751         ipw2100_disable_interrupts(priv);
1752
1753         /* Reset any fatal_error conditions */
1754         ipw2100_reset_fatalerror(priv);
1755         spin_unlock_irqrestore(&priv->low_lock, flags);
1756
1757         if (priv->status & STATUS_POWERED ||
1758             (priv->status & STATUS_RESET_PENDING)) {
1759                 /* Power cycle the card ... */
1760                 err = ipw2100_power_cycle_adapter(priv);
1761                 if (err) {
1762                         printk(KERN_WARNING DRV_NAME
1763                                ": %s: Could not cycle adapter.\n",
1764                                priv->net_dev->name);
1765                         goto exit;
1766                 }
1767         } else
1768                 priv->status |= STATUS_POWERED;
1769
1770         /* Load the firmware, start the clocks, etc. */
1771         err = ipw2100_start_adapter(priv);
1772         if (err) {
1773                 printk(KERN_ERR DRV_NAME
1774                        ": %s: Failed to start the firmware.\n",
1775                        priv->net_dev->name);
1776                 goto exit;
1777         }
1778
1779         ipw2100_initialize_ordinals(priv);
1780
1781         /* Determine capabilities of this particular HW configuration */
1782         err = ipw2100_get_hw_features(priv);
1783         if (err) {
1784                 printk(KERN_ERR DRV_NAME
1785                        ": %s: Failed to determine HW features.\n",
1786                        priv->net_dev->name);
1787                 goto exit;
1788         }
1789
1790         /* Initialize the geo */
1791         libipw_set_geo(priv->ieee, &ipw_geos[0]);
1792         priv->ieee->freq_band = LIBIPW_24GHZ_BAND;
1793
1794         lock = LOCK_NONE;
1795         err = ipw2100_set_ordinal(priv, IPW_ORD_PERS_DB_LOCK, &lock, &ord_len);
1796         if (err) {
1797                 printk(KERN_ERR DRV_NAME
1798                        ": %s: Failed to clear ordinal lock.\n",
1799                        priv->net_dev->name);
1800                 goto exit;
1801         }
1802
1803         priv->status &= ~STATUS_SCANNING;
1804
1805         if (rf_kill_active(priv)) {
1806                 printk(KERN_INFO "%s: Radio is disabled by RF switch.\n",
1807                        priv->net_dev->name);
1808
1809                 if (priv->stop_rf_kill) {
1810                         priv->stop_rf_kill = 0;
1811                         schedule_delayed_work(&priv->rf_kill,
1812                                               round_jiffies_relative(HZ));
1813                 }
1814
1815                 deferred = 1;
1816         }
1817
1818         /* Turn on the interrupt so that commands can be processed */
1819         ipw2100_enable_interrupts(priv);
1820
1821         /* Send all of the commands that must be sent prior to
1822          * HOST_COMPLETE */
1823         err = ipw2100_adapter_setup(priv);
1824         if (err) {
1825                 printk(KERN_ERR DRV_NAME ": %s: Failed to start the card.\n",
1826                        priv->net_dev->name);
1827                 goto exit;
1828         }
1829
1830         if (!deferred) {
1831                 /* Enable the adapter - sends HOST_COMPLETE */
1832                 err = ipw2100_enable_adapter(priv);
1833                 if (err) {
1834                         printk(KERN_ERR DRV_NAME ": "
1835                                "%s: failed in call to enable adapter.\n",
1836                                priv->net_dev->name);
1837                         ipw2100_hw_stop_adapter(priv);
1838                         goto exit;
1839                 }
1840
1841                 /* Start a scan . . . */
1842                 ipw2100_set_scan_options(priv);
1843                 ipw2100_start_scan(priv);
1844         }
1845
1846       exit:
1847         return err;
1848 }
1849
1850 static void ipw2100_down(struct ipw2100_priv *priv)
1851 {
1852         unsigned long flags;
1853         union iwreq_data wrqu = {
1854                 .ap_addr = {
1855                             .sa_family = ARPHRD_ETHER}
1856         };
1857         int associated = priv->status & STATUS_ASSOCIATED;
1858
1859         /* Kill the RF switch timer */
1860         if (!priv->stop_rf_kill) {
1861                 priv->stop_rf_kill = 1;
1862                 cancel_delayed_work(&priv->rf_kill);
1863         }
1864
1865         /* Kill the firmware hang check timer */
1866         if (!priv->stop_hang_check) {
1867                 priv->stop_hang_check = 1;
1868                 cancel_delayed_work(&priv->hang_check);
1869         }
1870
1871         /* Kill any pending resets */
1872         if (priv->status & STATUS_RESET_PENDING)
1873                 cancel_delayed_work(&priv->reset_work);
1874
1875         /* Make sure the interrupt is on so that FW commands will be
1876          * processed correctly */
1877         spin_lock_irqsave(&priv->low_lock, flags);
1878         ipw2100_enable_interrupts(priv);
1879         spin_unlock_irqrestore(&priv->low_lock, flags);
1880
1881         if (ipw2100_hw_stop_adapter(priv))
1882                 printk(KERN_ERR DRV_NAME ": %s: Error stopping adapter.\n",
1883                        priv->net_dev->name);
1884
1885         /* Do not disable the interrupt until _after_ we disable
1886          * the adaptor.  Otherwise the CARD_DISABLE command will never
1887          * be ack'd by the firmware */
1888         spin_lock_irqsave(&priv->low_lock, flags);
1889         ipw2100_disable_interrupts(priv);
1890         spin_unlock_irqrestore(&priv->low_lock, flags);
1891
1892         pm_qos_update_request(&ipw2100_pm_qos_req, PM_QOS_DEFAULT_VALUE);
1893
1894         /* We have to signal any supplicant if we are disassociating */
1895         if (associated)
1896                 wireless_send_event(priv->net_dev, SIOCGIWAP, &wrqu, NULL);
1897
1898         priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING);
1899         netif_carrier_off(priv->net_dev);
1900         netif_stop_queue(priv->net_dev);
1901 }
1902
1903 static int ipw2100_wdev_init(struct net_device *dev)
1904 {
1905         struct ipw2100_priv *priv = libipw_priv(dev);
1906         const struct libipw_geo *geo = libipw_get_geo(priv->ieee);
1907         struct wireless_dev *wdev = &priv->ieee->wdev;
1908         int i;
1909
1910         memcpy(wdev->wiphy->perm_addr, priv->mac_addr, ETH_ALEN);
1911
1912         /* fill-out priv->ieee->bg_band */
1913         if (geo->bg_channels) {
1914                 struct ieee80211_supported_band *bg_band = &priv->ieee->bg_band;
1915
1916                 bg_band->band = NL80211_BAND_2GHZ;
1917                 bg_band->n_channels = geo->bg_channels;
1918                 bg_band->channels = kcalloc(geo->bg_channels,
1919                                             sizeof(struct ieee80211_channel),
1920                                             GFP_KERNEL);
1921                 if (!bg_band->channels) {
1922                         ipw2100_down(priv);
1923                         return -ENOMEM;
1924                 }
1925                 /* translate geo->bg to bg_band.channels */
1926                 for (i = 0; i < geo->bg_channels; i++) {
1927                         bg_band->channels[i].band = NL80211_BAND_2GHZ;
1928                         bg_band->channels[i].center_freq = geo->bg[i].freq;
1929                         bg_band->channels[i].hw_value = geo->bg[i].channel;
1930                         bg_band->channels[i].max_power = geo->bg[i].max_power;
1931                         if (geo->bg[i].flags & LIBIPW_CH_PASSIVE_ONLY)
1932                                 bg_band->channels[i].flags |=
1933                                         IEEE80211_CHAN_NO_IR;
1934                         if (geo->bg[i].flags & LIBIPW_CH_NO_IBSS)
1935                                 bg_band->channels[i].flags |=
1936                                         IEEE80211_CHAN_NO_IR;
1937                         if (geo->bg[i].flags & LIBIPW_CH_RADAR_DETECT)
1938                                 bg_band->channels[i].flags |=
1939                                         IEEE80211_CHAN_RADAR;
1940                         /* No equivalent for LIBIPW_CH_80211H_RULES,
1941                            LIBIPW_CH_UNIFORM_SPREADING, or
1942                            LIBIPW_CH_B_ONLY... */
1943                 }
1944                 /* point at bitrate info */
1945                 bg_band->bitrates = ipw2100_bg_rates;
1946                 bg_band->n_bitrates = RATE_COUNT;
1947
1948                 wdev->wiphy->bands[NL80211_BAND_2GHZ] = bg_band;
1949         }
1950
1951         wdev->wiphy->cipher_suites = ipw_cipher_suites;
1952         wdev->wiphy->n_cipher_suites = ARRAY_SIZE(ipw_cipher_suites);
1953
1954         set_wiphy_dev(wdev->wiphy, &priv->pci_dev->dev);
1955         if (wiphy_register(wdev->wiphy))
1956                 return -EIO;
1957         return 0;
1958 }
1959
1960 static void ipw2100_reset_adapter(struct work_struct *work)
1961 {
1962         struct ipw2100_priv *priv =
1963                 container_of(work, struct ipw2100_priv, reset_work.work);
1964         unsigned long flags;
1965         union iwreq_data wrqu = {
1966                 .ap_addr = {
1967                             .sa_family = ARPHRD_ETHER}
1968         };
1969         int associated = priv->status & STATUS_ASSOCIATED;
1970
1971         spin_lock_irqsave(&priv->low_lock, flags);
1972         IPW_DEBUG_INFO(": %s: Restarting adapter.\n", priv->net_dev->name);
1973         priv->resets++;
1974         priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING);
1975         priv->status |= STATUS_SECURITY_UPDATED;
1976
1977         /* Force a power cycle even if interface hasn't been opened
1978          * yet */
1979         cancel_delayed_work(&priv->reset_work);
1980         priv->status |= STATUS_RESET_PENDING;
1981         spin_unlock_irqrestore(&priv->low_lock, flags);
1982
1983         mutex_lock(&priv->action_mutex);
1984         /* stop timed checks so that they don't interfere with reset */
1985         priv->stop_hang_check = 1;
1986         cancel_delayed_work(&priv->hang_check);
1987
1988         /* We have to signal any supplicant if we are disassociating */
1989         if (associated)
1990                 wireless_send_event(priv->net_dev, SIOCGIWAP, &wrqu, NULL);
1991
1992         ipw2100_up(priv, 0);
1993         mutex_unlock(&priv->action_mutex);
1994
1995 }
1996
1997 static void isr_indicate_associated(struct ipw2100_priv *priv, u32 status)
1998 {
1999
2000 #define MAC_ASSOCIATION_READ_DELAY (HZ)
2001         int ret;
2002         unsigned int len, essid_len;
2003         char essid[IW_ESSID_MAX_SIZE];
2004         u32 txrate;
2005         u32 chan;
2006         char *txratename;
2007         u8 bssid[ETH_ALEN];
2008
2009         /*
2010          * TBD: BSSID is usually 00:00:00:00:00:00 here and not
2011          *      an actual MAC of the AP. Seems like FW sets this
2012          *      address too late. Read it later and expose through
2013          *      /proc or schedule a later task to query and update
2014          */
2015
2016         essid_len = IW_ESSID_MAX_SIZE;
2017         ret = ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_SSID,
2018                                   essid, &essid_len);
2019         if (ret) {
2020                 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
2021                                __LINE__);
2022                 return;
2023         }
2024
2025         len = sizeof(u32);
2026         ret = ipw2100_get_ordinal(priv, IPW_ORD_CURRENT_TX_RATE, &txrate, &len);
2027         if (ret) {
2028                 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
2029                                __LINE__);
2030                 return;
2031         }
2032
2033         len = sizeof(u32);
2034         ret = ipw2100_get_ordinal(priv, IPW_ORD_OUR_FREQ, &chan, &len);
2035         if (ret) {
2036                 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
2037                                __LINE__);
2038                 return;
2039         }
2040         len = ETH_ALEN;
2041         ret = ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_AP_BSSID, bssid,
2042                                   &len);
2043         if (ret) {
2044                 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
2045                                __LINE__);
2046                 return;
2047         }
2048         memcpy(priv->ieee->bssid, bssid, ETH_ALEN);
2049
2050         switch (txrate) {
2051         case TX_RATE_1_MBIT:
2052                 txratename = "1Mbps";
2053                 break;
2054         case TX_RATE_2_MBIT:
2055                 txratename = "2Mbsp";
2056                 break;
2057         case TX_RATE_5_5_MBIT:
2058                 txratename = "5.5Mbps";
2059                 break;
2060         case TX_RATE_11_MBIT:
2061                 txratename = "11Mbps";
2062                 break;
2063         default:
2064                 IPW_DEBUG_INFO("Unknown rate: %d\n", txrate);
2065                 txratename = "unknown rate";
2066                 break;
2067         }
2068
2069         IPW_DEBUG_INFO("%s: Associated with '%*pE' at %s, channel %d (BSSID=%pM)\n",
2070                        priv->net_dev->name, essid_len, essid,
2071                        txratename, chan, bssid);
2072
2073         /* now we copy read ssid into dev */
2074         if (!(priv->config & CFG_STATIC_ESSID)) {
2075                 priv->essid_len = min((u8) essid_len, (u8) IW_ESSID_MAX_SIZE);
2076                 memcpy(priv->essid, essid, priv->essid_len);
2077         }
2078         priv->channel = chan;
2079         memcpy(priv->bssid, bssid, ETH_ALEN);
2080
2081         priv->status |= STATUS_ASSOCIATING;
2082         priv->connect_start = get_seconds();
2083
2084         schedule_delayed_work(&priv->wx_event_work, HZ / 10);
2085 }
2086
2087 static int ipw2100_set_essid(struct ipw2100_priv *priv, char *essid,
2088                              int length, int batch_mode)
2089 {
2090         int ssid_len = min(length, IW_ESSID_MAX_SIZE);
2091         struct host_command cmd = {
2092                 .host_command = SSID,
2093                 .host_command_sequence = 0,
2094                 .host_command_length = ssid_len
2095         };
2096         int err;
2097
2098         IPW_DEBUG_HC("SSID: '%*pE'\n", ssid_len, essid);
2099
2100         if (ssid_len)
2101                 memcpy(cmd.host_command_parameters, essid, ssid_len);
2102
2103         if (!batch_mode) {
2104                 err = ipw2100_disable_adapter(priv);
2105                 if (err)
2106                         return err;
2107         }
2108
2109         /* Bug in FW currently doesn't honor bit 0 in SET_SCAN_OPTIONS to
2110          * disable auto association -- so we cheat by setting a bogus SSID */
2111         if (!ssid_len && !(priv->config & CFG_ASSOCIATE)) {
2112                 int i;
2113                 u8 *bogus = (u8 *) cmd.host_command_parameters;
2114                 for (i = 0; i < IW_ESSID_MAX_SIZE; i++)
2115                         bogus[i] = 0x18 + i;
2116                 cmd.host_command_length = IW_ESSID_MAX_SIZE;
2117         }
2118
2119         /* NOTE:  We always send the SSID command even if the provided ESSID is
2120          * the same as what we currently think is set. */
2121
2122         err = ipw2100_hw_send_command(priv, &cmd);
2123         if (!err) {
2124                 memset(priv->essid + ssid_len, 0, IW_ESSID_MAX_SIZE - ssid_len);
2125                 memcpy(priv->essid, essid, ssid_len);
2126                 priv->essid_len = ssid_len;
2127         }
2128
2129         if (!batch_mode) {
2130                 if (ipw2100_enable_adapter(priv))
2131                         err = -EIO;
2132         }
2133
2134         return err;
2135 }
2136
2137 static void isr_indicate_association_lost(struct ipw2100_priv *priv, u32 status)
2138 {
2139         IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC,
2140                   "disassociated: '%*pE' %pM\n", priv->essid_len, priv->essid,
2141                   priv->bssid);
2142
2143         priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING);
2144
2145         if (priv->status & STATUS_STOPPING) {
2146                 IPW_DEBUG_INFO("Card is stopping itself, discard ASSN_LOST.\n");
2147                 return;
2148         }
2149
2150         eth_zero_addr(priv->bssid);
2151         eth_zero_addr(priv->ieee->bssid);
2152
2153         netif_carrier_off(priv->net_dev);
2154         netif_stop_queue(priv->net_dev);
2155
2156         if (!(priv->status & STATUS_RUNNING))
2157                 return;
2158
2159         if (priv->status & STATUS_SECURITY_UPDATED)
2160                 schedule_delayed_work(&priv->security_work, 0);
2161
2162         schedule_delayed_work(&priv->wx_event_work, 0);
2163 }
2164
2165 static void isr_indicate_rf_kill(struct ipw2100_priv *priv, u32 status)
2166 {
2167         IPW_DEBUG_INFO("%s: RF Kill state changed to radio OFF.\n",
2168                        priv->net_dev->name);
2169
2170         /* RF_KILL is now enabled (else we wouldn't be here) */
2171         wiphy_rfkill_set_hw_state(priv->ieee->wdev.wiphy, true);
2172         priv->status |= STATUS_RF_KILL_HW;
2173
2174         /* Make sure the RF Kill check timer is running */
2175         priv->stop_rf_kill = 0;
2176         mod_delayed_work(system_wq, &priv->rf_kill, round_jiffies_relative(HZ));
2177 }
2178
2179 static void ipw2100_scan_event(struct work_struct *work)
2180 {
2181         struct ipw2100_priv *priv = container_of(work, struct ipw2100_priv,
2182                                                  scan_event.work);
2183         union iwreq_data wrqu;
2184
2185         wrqu.data.length = 0;
2186         wrqu.data.flags = 0;
2187         wireless_send_event(priv->net_dev, SIOCGIWSCAN, &wrqu, NULL);
2188 }
2189
2190 static void isr_scan_complete(struct ipw2100_priv *priv, u32 status)
2191 {
2192         IPW_DEBUG_SCAN("scan complete\n");
2193         /* Age the scan results... */
2194         priv->ieee->scans++;
2195         priv->status &= ~STATUS_SCANNING;
2196
2197         /* Only userspace-requested scan completion events go out immediately */
2198         if (!priv->user_requested_scan) {
2199                 schedule_delayed_work(&priv->scan_event,
2200                                       round_jiffies_relative(msecs_to_jiffies(4000)));
2201         } else {
2202                 priv->user_requested_scan = 0;
2203                 mod_delayed_work(system_wq, &priv->scan_event, 0);
2204         }
2205 }
2206
2207 #ifdef CONFIG_IPW2100_DEBUG
2208 #define IPW2100_HANDLER(v, f) { v, f, # v }
2209 struct ipw2100_status_indicator {
2210         int status;
2211         void (*cb) (struct ipw2100_priv * priv, u32 status);
2212         char *name;
2213 };
2214 #else
2215 #define IPW2100_HANDLER(v, f) { v, f }
2216 struct ipw2100_status_indicator {
2217         int status;
2218         void (*cb) (struct ipw2100_priv * priv, u32 status);
2219 };
2220 #endif                          /* CONFIG_IPW2100_DEBUG */
2221
2222 static void isr_indicate_scanning(struct ipw2100_priv *priv, u32 status)
2223 {
2224         IPW_DEBUG_SCAN("Scanning...\n");
2225         priv->status |= STATUS_SCANNING;
2226 }
2227
2228 static const struct ipw2100_status_indicator status_handlers[] = {
2229         IPW2100_HANDLER(IPW_STATE_INITIALIZED, NULL),
2230         IPW2100_HANDLER(IPW_STATE_COUNTRY_FOUND, NULL),
2231         IPW2100_HANDLER(IPW_STATE_ASSOCIATED, isr_indicate_associated),
2232         IPW2100_HANDLER(IPW_STATE_ASSN_LOST, isr_indicate_association_lost),
2233         IPW2100_HANDLER(IPW_STATE_ASSN_CHANGED, NULL),
2234         IPW2100_HANDLER(IPW_STATE_SCAN_COMPLETE, isr_scan_complete),
2235         IPW2100_HANDLER(IPW_STATE_ENTERED_PSP, NULL),
2236         IPW2100_HANDLER(IPW_STATE_LEFT_PSP, NULL),
2237         IPW2100_HANDLER(IPW_STATE_RF_KILL, isr_indicate_rf_kill),
2238         IPW2100_HANDLER(IPW_STATE_DISABLED, NULL),
2239         IPW2100_HANDLER(IPW_STATE_POWER_DOWN, NULL),
2240         IPW2100_HANDLER(IPW_STATE_SCANNING, isr_indicate_scanning),
2241         IPW2100_HANDLER(-1, NULL)
2242 };
2243
2244 static void isr_status_change(struct ipw2100_priv *priv, int status)
2245 {
2246         int i;
2247
2248         if (status == IPW_STATE_SCANNING &&
2249             priv->status & STATUS_ASSOCIATED &&
2250             !(priv->status & STATUS_SCANNING)) {
2251                 IPW_DEBUG_INFO("Scan detected while associated, with "
2252                                "no scan request.  Restarting firmware.\n");
2253
2254                 /* Wake up any sleeping jobs */
2255                 schedule_reset(priv);
2256         }
2257
2258         for (i = 0; status_handlers[i].status != -1; i++) {
2259                 if (status == status_handlers[i].status) {
2260                         IPW_DEBUG_NOTIF("Status change: %s\n",
2261                                         status_handlers[i].name);
2262                         if (status_handlers[i].cb)
2263                                 status_handlers[i].cb(priv, status);
2264                         priv->wstats.status = status;
2265                         return;
2266                 }
2267         }
2268
2269         IPW_DEBUG_NOTIF("unknown status received: %04x\n", status);
2270 }
2271
2272 static void isr_rx_complete_command(struct ipw2100_priv *priv,
2273                                     struct ipw2100_cmd_header *cmd)
2274 {
2275 #ifdef CONFIG_IPW2100_DEBUG
2276         if (cmd->host_command_reg < ARRAY_SIZE(command_types)) {
2277                 IPW_DEBUG_HC("Command completed '%s (%d)'\n",
2278                              command_types[cmd->host_command_reg],
2279                              cmd->host_command_reg);
2280         }
2281 #endif
2282         if (cmd->host_command_reg == HOST_COMPLETE)
2283                 priv->status |= STATUS_ENABLED;
2284
2285         if (cmd->host_command_reg == CARD_DISABLE)
2286                 priv->status &= ~STATUS_ENABLED;
2287
2288         priv->status &= ~STATUS_CMD_ACTIVE;
2289
2290         wake_up_interruptible(&priv->wait_command_queue);
2291 }
2292
2293 #ifdef CONFIG_IPW2100_DEBUG
2294 static const char *frame_types[] = {
2295         "COMMAND_STATUS_VAL",
2296         "STATUS_CHANGE_VAL",
2297         "P80211_DATA_VAL",
2298         "P8023_DATA_VAL",
2299         "HOST_NOTIFICATION_VAL"
2300 };
2301 #endif
2302
2303 static int ipw2100_alloc_skb(struct ipw2100_priv *priv,
2304                                     struct ipw2100_rx_packet *packet)
2305 {
2306         packet->skb = dev_alloc_skb(sizeof(struct ipw2100_rx));
2307         if (!packet->skb)
2308                 return -ENOMEM;
2309
2310         packet->rxp = (struct ipw2100_rx *)packet->skb->data;
2311         packet->dma_addr = pci_map_single(priv->pci_dev, packet->skb->data,
2312                                           sizeof(struct ipw2100_rx),
2313                                           PCI_DMA_FROMDEVICE);
2314         if (pci_dma_mapping_error(priv->pci_dev, packet->dma_addr)) {
2315                 dev_kfree_skb(packet->skb);
2316                 return -ENOMEM;
2317         }
2318
2319         return 0;
2320 }
2321
2322 #define SEARCH_ERROR   0xffffffff
2323 #define SEARCH_FAIL    0xfffffffe
2324 #define SEARCH_SUCCESS 0xfffffff0
2325 #define SEARCH_DISCARD 0
2326 #define SEARCH_SNAPSHOT 1
2327
2328 #define SNAPSHOT_ADDR(ofs) (priv->snapshot[((ofs) >> 12) & 0xff] + ((ofs) & 0xfff))
2329 static void ipw2100_snapshot_free(struct ipw2100_priv *priv)
2330 {
2331         int i;
2332         if (!priv->snapshot[0])
2333                 return;
2334         for (i = 0; i < 0x30; i++)
2335                 kfree(priv->snapshot[i]);
2336         priv->snapshot[0] = NULL;
2337 }
2338
2339 #ifdef IPW2100_DEBUG_C3
2340 static int ipw2100_snapshot_alloc(struct ipw2100_priv *priv)
2341 {
2342         int i;
2343         if (priv->snapshot[0])
2344                 return 1;
2345         for (i = 0; i < 0x30; i++) {
2346                 priv->snapshot[i] = kmalloc(0x1000, GFP_ATOMIC);
2347                 if (!priv->snapshot[i]) {
2348                         IPW_DEBUG_INFO("%s: Error allocating snapshot "
2349                                        "buffer %d\n", priv->net_dev->name, i);
2350                         while (i > 0)
2351                                 kfree(priv->snapshot[--i]);
2352                         priv->snapshot[0] = NULL;
2353                         return 0;
2354                 }
2355         }
2356
2357         return 1;
2358 }
2359
2360 static u32 ipw2100_match_buf(struct ipw2100_priv *priv, u8 * in_buf,
2361                                     size_t len, int mode)
2362 {
2363         u32 i, j;
2364         u32 tmp;
2365         u8 *s, *d;
2366         u32 ret;
2367
2368         s = in_buf;
2369         if (mode == SEARCH_SNAPSHOT) {
2370                 if (!ipw2100_snapshot_alloc(priv))
2371                         mode = SEARCH_DISCARD;
2372         }
2373
2374         for (ret = SEARCH_FAIL, i = 0; i < 0x30000; i += 4) {
2375                 read_nic_dword(priv->net_dev, i, &tmp);
2376                 if (mode == SEARCH_SNAPSHOT)
2377                         *(u32 *) SNAPSHOT_ADDR(i) = tmp;
2378                 if (ret == SEARCH_FAIL) {
2379                         d = (u8 *) & tmp;
2380                         for (j = 0; j < 4; j++) {
2381                                 if (*s != *d) {
2382                                         s = in_buf;
2383                                         continue;
2384                                 }
2385
2386                                 s++;
2387                                 d++;
2388
2389                                 if ((s - in_buf) == len)
2390                                         ret = (i + j) - len + 1;
2391                         }
2392                 } else if (mode == SEARCH_DISCARD)
2393                         return ret;
2394         }
2395
2396         return ret;
2397 }
2398 #endif
2399
2400 /*
2401  *
2402  * 0) Disconnect the SKB from the firmware (just unmap)
2403  * 1) Pack the ETH header into the SKB
2404  * 2) Pass the SKB to the network stack
2405  *
2406  * When packet is provided by the firmware, it contains the following:
2407  *
2408  * .  libipw_hdr
2409  * .  libipw_snap_hdr
2410  *
2411  * The size of the constructed ethernet
2412  *
2413  */
2414 #ifdef IPW2100_RX_DEBUG
2415 static u8 packet_data[IPW_RX_NIC_BUFFER_LENGTH];
2416 #endif
2417
2418 static void ipw2100_corruption_detected(struct ipw2100_priv *priv, int i)
2419 {
2420 #ifdef IPW2100_DEBUG_C3
2421         struct ipw2100_status *status = &priv->status_queue.drv[i];
2422         u32 match, reg;
2423         int j;
2424 #endif
2425
2426         IPW_DEBUG_INFO(": PCI latency error detected at 0x%04zX.\n",
2427                        i * sizeof(struct ipw2100_status));
2428
2429 #ifdef IPW2100_DEBUG_C3
2430         /* Halt the firmware so we can get a good image */
2431         write_register(priv->net_dev, IPW_REG_RESET_REG,
2432                        IPW_AUX_HOST_RESET_REG_STOP_MASTER);
2433         j = 5;
2434         do {
2435                 udelay(IPW_WAIT_RESET_MASTER_ASSERT_COMPLETE_DELAY);
2436                 read_register(priv->net_dev, IPW_REG_RESET_REG, &reg);
2437
2438                 if (reg & IPW_AUX_HOST_RESET_REG_MASTER_DISABLED)
2439                         break;
2440         } while (j--);
2441
2442         match = ipw2100_match_buf(priv, (u8 *) status,
2443                                   sizeof(struct ipw2100_status),
2444                                   SEARCH_SNAPSHOT);
2445         if (match < SEARCH_SUCCESS)
2446                 IPW_DEBUG_INFO("%s: DMA status match in Firmware at "
2447                                "offset 0x%06X, length %d:\n",
2448                                priv->net_dev->name, match,
2449                                sizeof(struct ipw2100_status));
2450         else
2451                 IPW_DEBUG_INFO("%s: No DMA status match in "
2452                                "Firmware.\n", priv->net_dev->name);
2453
2454         printk_buf((u8 *) priv->status_queue.drv,
2455                    sizeof(struct ipw2100_status) * RX_QUEUE_LENGTH);
2456 #endif
2457
2458         priv->fatal_error = IPW2100_ERR_C3_CORRUPTION;
2459         priv->net_dev->stats.rx_errors++;
2460         schedule_reset(priv);
2461 }
2462
2463 static void isr_rx(struct ipw2100_priv *priv, int i,
2464                           struct libipw_rx_stats *stats)
2465 {
2466         struct net_device *dev = priv->net_dev;
2467         struct ipw2100_status *status = &priv->status_queue.drv[i];
2468         struct ipw2100_rx_packet *packet = &priv->rx_buffers[i];
2469
2470         IPW_DEBUG_RX("Handler...\n");
2471
2472         if (unlikely(status->frame_size > skb_tailroom(packet->skb))) {
2473                 IPW_DEBUG_INFO("%s: frame_size (%u) > skb_tailroom (%u)!"
2474                                "  Dropping.\n",
2475                                dev->name,
2476                                status->frame_size, skb_tailroom(packet->skb));
2477                 dev->stats.rx_errors++;
2478                 return;
2479         }
2480
2481         if (unlikely(!netif_running(dev))) {
2482                 dev->stats.rx_errors++;
2483                 priv->wstats.discard.misc++;
2484                 IPW_DEBUG_DROP("Dropping packet while interface is not up.\n");
2485                 return;
2486         }
2487
2488         if (unlikely(priv->ieee->iw_mode != IW_MODE_MONITOR &&
2489                      !(priv->status & STATUS_ASSOCIATED))) {
2490                 IPW_DEBUG_DROP("Dropping packet while not associated.\n");
2491                 priv->wstats.discard.misc++;
2492                 return;
2493         }
2494
2495         pci_unmap_single(priv->pci_dev,
2496                          packet->dma_addr,
2497                          sizeof(struct ipw2100_rx), PCI_DMA_FROMDEVICE);
2498
2499         skb_put(packet->skb, status->frame_size);
2500
2501 #ifdef IPW2100_RX_DEBUG
2502         /* Make a copy of the frame so we can dump it to the logs if
2503          * libipw_rx fails */
2504         skb_copy_from_linear_data(packet->skb, packet_data,
2505                                   min_t(u32, status->frame_size,
2506                                              IPW_RX_NIC_BUFFER_LENGTH));
2507 #endif
2508
2509         if (!libipw_rx(priv->ieee, packet->skb, stats)) {
2510 #ifdef IPW2100_RX_DEBUG
2511                 IPW_DEBUG_DROP("%s: Non consumed packet:\n",
2512                                dev->name);
2513                 printk_buf(IPW_DL_DROP, packet_data, status->frame_size);
2514 #endif
2515                 dev->stats.rx_errors++;
2516
2517                 /* libipw_rx failed, so it didn't free the SKB */
2518                 dev_kfree_skb_any(packet->skb);
2519                 packet->skb = NULL;
2520         }
2521
2522         /* We need to allocate a new SKB and attach it to the RDB. */
2523         if (unlikely(ipw2100_alloc_skb(priv, packet))) {
2524                 printk(KERN_WARNING DRV_NAME ": "
2525                        "%s: Unable to allocate SKB onto RBD ring - disabling "
2526                        "adapter.\n", dev->name);
2527                 /* TODO: schedule adapter shutdown */
2528                 IPW_DEBUG_INFO("TODO: Shutdown adapter...\n");
2529         }
2530
2531         /* Update the RDB entry */
2532         priv->rx_queue.drv[i].host_addr = packet->dma_addr;
2533 }
2534
2535 #ifdef CONFIG_IPW2100_MONITOR
2536
2537 static void isr_rx_monitor(struct ipw2100_priv *priv, int i,
2538                    struct libipw_rx_stats *stats)
2539 {
2540         struct net_device *dev = priv->net_dev;
2541         struct ipw2100_status *status = &priv->status_queue.drv[i];
2542         struct ipw2100_rx_packet *packet = &priv->rx_buffers[i];
2543
2544         /* Magic struct that slots into the radiotap header -- no reason
2545          * to build this manually element by element, we can write it much
2546          * more efficiently than we can parse it. ORDER MATTERS HERE */
2547         struct ipw_rt_hdr {
2548                 struct ieee80211_radiotap_header rt_hdr;
2549                 s8 rt_dbmsignal; /* signal in dbM, kluged to signed */
2550         } *ipw_rt;
2551
2552         IPW_DEBUG_RX("Handler...\n");
2553
2554         if (unlikely(status->frame_size > skb_tailroom(packet->skb) -
2555                                 sizeof(struct ipw_rt_hdr))) {
2556                 IPW_DEBUG_INFO("%s: frame_size (%u) > skb_tailroom (%u)!"
2557                                "  Dropping.\n",
2558                                dev->name,
2559                                status->frame_size,
2560                                skb_tailroom(packet->skb));
2561                 dev->stats.rx_errors++;
2562                 return;
2563         }
2564
2565         if (unlikely(!netif_running(dev))) {
2566                 dev->stats.rx_errors++;
2567                 priv->wstats.discard.misc++;
2568                 IPW_DEBUG_DROP("Dropping packet while interface is not up.\n");
2569                 return;
2570         }
2571
2572         if (unlikely(priv->config & CFG_CRC_CHECK &&
2573                      status->flags & IPW_STATUS_FLAG_CRC_ERROR)) {
2574                 IPW_DEBUG_RX("CRC error in packet.  Dropping.\n");
2575                 dev->stats.rx_errors++;
2576                 return;
2577         }
2578
2579         pci_unmap_single(priv->pci_dev, packet->dma_addr,
2580                          sizeof(struct ipw2100_rx), PCI_DMA_FROMDEVICE);
2581         memmove(packet->skb->data + sizeof(struct ipw_rt_hdr),
2582                 packet->skb->data, status->frame_size);
2583
2584         ipw_rt = (struct ipw_rt_hdr *) packet->skb->data;
2585
2586         ipw_rt->rt_hdr.it_version = PKTHDR_RADIOTAP_VERSION;
2587         ipw_rt->rt_hdr.it_pad = 0; /* always good to zero */
2588         ipw_rt->rt_hdr.it_len = cpu_to_le16(sizeof(struct ipw_rt_hdr)); /* total hdr+data */
2589
2590         ipw_rt->rt_hdr.it_present = cpu_to_le32(1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL);
2591
2592         ipw_rt->rt_dbmsignal = status->rssi + IPW2100_RSSI_TO_DBM;
2593
2594         skb_put(packet->skb, status->frame_size + sizeof(struct ipw_rt_hdr));
2595
2596         if (!libipw_rx(priv->ieee, packet->skb, stats)) {
2597                 dev->stats.rx_errors++;
2598
2599                 /* libipw_rx failed, so it didn't free the SKB */
2600                 dev_kfree_skb_any(packet->skb);
2601                 packet->skb = NULL;
2602         }
2603
2604         /* We need to allocate a new SKB and attach it to the RDB. */
2605         if (unlikely(ipw2100_alloc_skb(priv, packet))) {
2606                 IPW_DEBUG_WARNING(
2607                         "%s: Unable to allocate SKB onto RBD ring - disabling "
2608                         "adapter.\n", dev->name);
2609                 /* TODO: schedule adapter shutdown */
2610                 IPW_DEBUG_INFO("TODO: Shutdown adapter...\n");
2611         }
2612
2613         /* Update the RDB entry */
2614         priv->rx_queue.drv[i].host_addr = packet->dma_addr;
2615 }
2616
2617 #endif
2618
2619 static int ipw2100_corruption_check(struct ipw2100_priv *priv, int i)
2620 {
2621         struct ipw2100_status *status = &priv->status_queue.drv[i];
2622         struct ipw2100_rx *u = priv->rx_buffers[i].rxp;
2623         u16 frame_type = status->status_fields & STATUS_TYPE_MASK;
2624
2625         switch (frame_type) {
2626         case COMMAND_STATUS_VAL:
2627                 return (status->frame_size != sizeof(u->rx_data.command));
2628         case STATUS_CHANGE_VAL:
2629                 return (status->frame_size != sizeof(u->rx_data.status));
2630         case HOST_NOTIFICATION_VAL:
2631                 return (status->frame_size < sizeof(u->rx_data.notification));
2632         case P80211_DATA_VAL:
2633         case P8023_DATA_VAL:
2634 #ifdef CONFIG_IPW2100_MONITOR
2635                 return 0;
2636 #else
2637                 switch (WLAN_FC_GET_TYPE(le16_to_cpu(u->rx_data.header.frame_ctl))) {
2638                 case IEEE80211_FTYPE_MGMT:
2639                 case IEEE80211_FTYPE_CTL:
2640                         return 0;
2641                 case IEEE80211_FTYPE_DATA:
2642                         return (status->frame_size >
2643                                 IPW_MAX_802_11_PAYLOAD_LENGTH);
2644                 }
2645 #endif
2646         }
2647
2648         return 1;
2649 }
2650
2651 /*
2652  * ipw2100 interrupts are disabled at this point, and the ISR
2653  * is the only code that calls this method.  So, we do not need
2654  * to play with any locks.
2655  *
2656  * RX Queue works as follows:
2657  *
2658  * Read index - firmware places packet in entry identified by the
2659  *              Read index and advances Read index.  In this manner,
2660  *              Read index will always point to the next packet to
2661  *              be filled--but not yet valid.
2662  *
2663  * Write index - driver fills this entry with an unused RBD entry.
2664  *               This entry has not filled by the firmware yet.
2665  *
2666  * In between the W and R indexes are the RBDs that have been received
2667  * but not yet processed.
2668  *
2669  * The process of handling packets will start at WRITE + 1 and advance
2670  * until it reaches the READ index.
2671  *
2672  * The WRITE index is cached in the variable 'priv->rx_queue.next'.
2673  *
2674  */
2675 static void __ipw2100_rx_process(struct ipw2100_priv *priv)
2676 {
2677         struct ipw2100_bd_queue *rxq = &priv->rx_queue;
2678         struct ipw2100_status_queue *sq = &priv->status_queue;
2679         struct ipw2100_rx_packet *packet;
2680         u16 frame_type;
2681         u32 r, w, i, s;
2682         struct ipw2100_rx *u;
2683         struct libipw_rx_stats stats = {
2684                 .mac_time = jiffies,
2685         };
2686
2687         read_register(priv->net_dev, IPW_MEM_HOST_SHARED_RX_READ_INDEX, &r);
2688         read_register(priv->net_dev, IPW_MEM_HOST_SHARED_RX_WRITE_INDEX, &w);
2689
2690         if (r >= rxq->entries) {
2691                 IPW_DEBUG_RX("exit - bad read index\n");
2692                 return;
2693         }
2694
2695         i = (rxq->next + 1) % rxq->entries;
2696         s = i;
2697         while (i != r) {
2698                 /* IPW_DEBUG_RX("r = %d : w = %d : processing = %d\n",
2699                    r, rxq->next, i); */
2700
2701                 packet = &priv->rx_buffers[i];
2702
2703                 /* Sync the DMA for the RX buffer so CPU is sure to get
2704                  * the correct values */
2705                 pci_dma_sync_single_for_cpu(priv->pci_dev, packet->dma_addr,
2706                                             sizeof(struct ipw2100_rx),
2707                                             PCI_DMA_FROMDEVICE);
2708
2709                 if (unlikely(ipw2100_corruption_check(priv, i))) {
2710                         ipw2100_corruption_detected(priv, i);
2711                         goto increment;
2712                 }
2713
2714                 u = packet->rxp;
2715                 frame_type = sq->drv[i].status_fields & STATUS_TYPE_MASK;
2716                 stats.rssi = sq->drv[i].rssi + IPW2100_RSSI_TO_DBM;
2717                 stats.len = sq->drv[i].frame_size;
2718
2719                 stats.mask = 0;
2720                 if (stats.rssi != 0)
2721                         stats.mask |= LIBIPW_STATMASK_RSSI;
2722                 stats.freq = LIBIPW_24GHZ_BAND;
2723
2724                 IPW_DEBUG_RX("%s: '%s' frame type received (%d).\n",
2725                              priv->net_dev->name, frame_types[frame_type],
2726                              stats.len);
2727
2728                 switch (frame_type) {
2729                 case COMMAND_STATUS_VAL:
2730                         /* Reset Rx watchdog */
2731                         isr_rx_complete_command(priv, &u->rx_data.command);
2732                         break;
2733
2734                 case STATUS_CHANGE_VAL:
2735                         isr_status_change(priv, u->rx_data.status);
2736                         break;
2737
2738                 case P80211_DATA_VAL:
2739                 case P8023_DATA_VAL:
2740 #ifdef CONFIG_IPW2100_MONITOR
2741                         if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
2742                                 isr_rx_monitor(priv, i, &stats);
2743                                 break;
2744                         }
2745 #endif
2746                         if (stats.len < sizeof(struct libipw_hdr_3addr))
2747                                 break;
2748                         switch (WLAN_FC_GET_TYPE(le16_to_cpu(u->rx_data.header.frame_ctl))) {
2749                         case IEEE80211_FTYPE_MGMT:
2750                                 libipw_rx_mgt(priv->ieee,
2751                                                  &u->rx_data.header, &stats);
2752                                 break;
2753
2754                         case IEEE80211_FTYPE_CTL:
2755                                 break;
2756
2757                         case IEEE80211_FTYPE_DATA:
2758                                 isr_rx(priv, i, &stats);
2759                                 break;
2760
2761                         }
2762                         break;
2763                 }
2764
2765               increment:
2766                 /* clear status field associated with this RBD */
2767                 rxq->drv[i].status.info.field = 0;
2768
2769                 i = (i + 1) % rxq->entries;
2770         }
2771
2772         if (i != s) {
2773                 /* backtrack one entry, wrapping to end if at 0 */
2774                 rxq->next = (i ? i : rxq->entries) - 1;
2775
2776                 write_register(priv->net_dev,
2777                                IPW_MEM_HOST_SHARED_RX_WRITE_INDEX, rxq->next);
2778         }
2779 }
2780
2781 /*
2782  * __ipw2100_tx_process
2783  *
2784  * This routine will determine whether the next packet on
2785  * the fw_pend_list has been processed by the firmware yet.
2786  *
2787  * If not, then it does nothing and returns.
2788  *
2789  * If so, then it removes the item from the fw_pend_list, frees
2790  * any associated storage, and places the item back on the
2791  * free list of its source (either msg_free_list or tx_free_list)
2792  *
2793  * TX Queue works as follows:
2794  *
2795  * Read index - points to the next TBD that the firmware will
2796  *              process.  The firmware will read the data, and once
2797  *              done processing, it will advance the Read index.
2798  *
2799  * Write index - driver fills this entry with an constructed TBD
2800  *               entry.  The Write index is not advanced until the
2801  *               packet has been configured.
2802  *
2803  * In between the W and R indexes are the TBDs that have NOT been
2804  * processed.  Lagging behind the R index are packets that have
2805  * been processed but have not been freed by the driver.
2806  *
2807  * In order to free old storage, an internal index will be maintained
2808  * that points to the next packet to be freed.  When all used
2809  * packets have been freed, the oldest index will be the same as the
2810  * firmware's read index.
2811  *
2812  * The OLDEST index is cached in the variable 'priv->tx_queue.oldest'
2813  *
2814  * Because the TBD structure can not contain arbitrary data, the
2815  * driver must keep an internal queue of cached allocations such that
2816  * it can put that data back into the tx_free_list and msg_free_list
2817  * for use by future command and data packets.
2818  *
2819  */
2820 static int __ipw2100_tx_process(struct ipw2100_priv *priv)
2821 {
2822         struct ipw2100_bd_queue *txq = &priv->tx_queue;
2823         struct ipw2100_bd *tbd;
2824         struct list_head *element;
2825         struct ipw2100_tx_packet *packet;
2826         int descriptors_used;
2827         int e, i;
2828         u32 r, w, frag_num = 0;
2829
2830         if (list_empty(&priv->fw_pend_list))
2831                 return 0;
2832
2833         element = priv->fw_pend_list.next;
2834
2835         packet = list_entry(element, struct ipw2100_tx_packet, list);
2836         tbd = &txq->drv[packet->index];
2837
2838         /* Determine how many TBD entries must be finished... */
2839         switch (packet->type) {
2840         case COMMAND:
2841                 /* COMMAND uses only one slot; don't advance */
2842                 descriptors_used = 1;
2843                 e = txq->oldest;
2844                 break;
2845
2846         case DATA:
2847                 /* DATA uses two slots; advance and loop position. */
2848                 descriptors_used = tbd->num_fragments;
2849                 frag_num = tbd->num_fragments - 1;
2850                 e = txq->oldest + frag_num;
2851                 e %= txq->entries;
2852                 break;
2853
2854         default:
2855                 printk(KERN_WARNING DRV_NAME ": %s: Bad fw_pend_list entry!\n",
2856                        priv->net_dev->name);
2857                 return 0;
2858         }
2859
2860         /* if the last TBD is not done by NIC yet, then packet is
2861          * not ready to be released.
2862          *
2863          */
2864         read_register(priv->net_dev, IPW_MEM_HOST_SHARED_TX_QUEUE_READ_INDEX,
2865                       &r);
2866         read_register(priv->net_dev, IPW_MEM_HOST_SHARED_TX_QUEUE_WRITE_INDEX,
2867                       &w);
2868         if (w != txq->next)
2869                 printk(KERN_WARNING DRV_NAME ": %s: write index mismatch\n",
2870                        priv->net_dev->name);
2871
2872         /*
2873          * txq->next is the index of the last packet written txq->oldest is
2874          * the index of the r is the index of the next packet to be read by
2875          * firmware
2876          */
2877
2878         /*
2879          * Quick graphic to help you visualize the following
2880          * if / else statement
2881          *
2882          * ===>|                     s---->|===============
2883          *                               e>|
2884          * | a | b | c | d | e | f | g | h | i | j | k | l
2885          *       r---->|
2886          *               w
2887          *
2888          * w - updated by driver
2889          * r - updated by firmware
2890          * s - start of oldest BD entry (txq->oldest)
2891          * e - end of oldest BD entry
2892          *
2893          */
2894         if (!((r <= w && (e < r || e >= w)) || (e < r && e >= w))) {
2895                 IPW_DEBUG_TX("exit - no processed packets ready to release.\n");
2896                 return 0;
2897         }
2898
2899         list_del(element);
2900         DEC_STAT(&priv->fw_pend_stat);
2901
2902 #ifdef CONFIG_IPW2100_DEBUG
2903         {
2904                 i = txq->oldest;
2905                 IPW_DEBUG_TX("TX%d V=%p P=%04X T=%04X L=%d\n", i,
2906                              &txq->drv[i],
2907                              (u32) (txq->nic + i * sizeof(struct ipw2100_bd)),
2908                              txq->drv[i].host_addr, txq->drv[i].buf_length);
2909
2910                 if (packet->type == DATA) {
2911                         i = (i + 1) % txq->entries;
2912
2913                         IPW_DEBUG_TX("TX%d V=%p P=%04X T=%04X L=%d\n", i,
2914                                      &txq->drv[i],
2915                                      (u32) (txq->nic + i *
2916                                             sizeof(struct ipw2100_bd)),
2917                                      (u32) txq->drv[i].host_addr,
2918                                      txq->drv[i].buf_length);
2919                 }
2920         }
2921 #endif
2922
2923         switch (packet->type) {
2924         case DATA:
2925                 if (txq->drv[txq->oldest].status.info.fields.txType != 0)
2926                         printk(KERN_WARNING DRV_NAME ": %s: Queue mismatch.  "
2927                                "Expecting DATA TBD but pulled "
2928                                "something else: ids %d=%d.\n",
2929                                priv->net_dev->name, txq->oldest, packet->index);
2930
2931                 /* DATA packet; we have to unmap and free the SKB */
2932                 for (i = 0; i < frag_num; i++) {
2933                         tbd = &txq->drv[(packet->index + 1 + i) % txq->entries];
2934
2935                         IPW_DEBUG_TX("TX%d P=%08x L=%d\n",
2936                                      (packet->index + 1 + i) % txq->entries,
2937                                      tbd->host_addr, tbd->buf_length);
2938
2939                         pci_unmap_single(priv->pci_dev,
2940                                          tbd->host_addr,
2941                                          tbd->buf_length, PCI_DMA_TODEVICE);
2942                 }
2943
2944                 libipw_txb_free(packet->info.d_struct.txb);
2945                 packet->info.d_struct.txb = NULL;
2946
2947                 list_add_tail(element, &priv->tx_free_list);
2948                 INC_STAT(&priv->tx_free_stat);
2949
2950                 /* We have a free slot in the Tx queue, so wake up the
2951                  * transmit layer if it is stopped. */
2952                 if (priv->status & STATUS_ASSOCIATED)
2953                         netif_wake_queue(priv->net_dev);
2954
2955                 /* A packet was processed by the hardware, so update the
2956                  * watchdog */
2957                 netif_trans_update(priv->net_dev);
2958
2959                 break;
2960
2961         case COMMAND:
2962                 if (txq->drv[txq->oldest].status.info.fields.txType != 1)
2963                         printk(KERN_WARNING DRV_NAME ": %s: Queue mismatch.  "
2964                                "Expecting COMMAND TBD but pulled "
2965                                "something else: ids %d=%d.\n",
2966                                priv->net_dev->name, txq->oldest, packet->index);
2967
2968 #ifdef CONFIG_IPW2100_DEBUG
2969                 if (packet->info.c_struct.cmd->host_command_reg <
2970                     ARRAY_SIZE(command_types))
2971                         IPW_DEBUG_TX("Command '%s (%d)' processed: %d.\n",
2972                                      command_types[packet->info.c_struct.cmd->
2973                                                    host_command_reg],
2974                                      packet->info.c_struct.cmd->
2975                                      host_command_reg,
2976                                      packet->info.c_struct.cmd->cmd_status_reg);
2977 #endif
2978
2979                 list_add_tail(element, &priv->msg_free_list);
2980                 INC_STAT(&priv->msg_free_stat);
2981                 break;
2982         }
2983
2984         /* advance oldest used TBD pointer to start of next entry */
2985         txq->oldest = (e + 1) % txq->entries;
2986         /* increase available TBDs number */
2987         txq->available += descriptors_used;
2988         SET_STAT(&priv->txq_stat, txq->available);
2989
2990         IPW_DEBUG_TX("packet latency (send to process)  %ld jiffies\n",
2991                      jiffies - packet->jiffy_start);
2992
2993         return (!list_empty(&priv->fw_pend_list));
2994 }
2995
2996 static inline void __ipw2100_tx_complete(struct ipw2100_priv *priv)
2997 {
2998         int i = 0;
2999
3000         while (__ipw2100_tx_process(priv) && i < 200)
3001                 i++;
3002
3003         if (i == 200) {
3004                 printk(KERN_WARNING DRV_NAME ": "
3005                        "%s: Driver is running slow (%d iters).\n",
3006                        priv->net_dev->name, i);
3007         }
3008 }
3009
3010 static void ipw2100_tx_send_commands(struct ipw2100_priv *priv)
3011 {
3012         struct list_head *element;
3013         struct ipw2100_tx_packet *packet;
3014         struct ipw2100_bd_queue *txq = &priv->tx_queue;
3015         struct ipw2100_bd *tbd;
3016         int next = txq->next;
3017
3018         while (!list_empty(&priv->msg_pend_list)) {
3019                 /* if there isn't enough space in TBD queue, then
3020                  * don't stuff a new one in.
3021                  * NOTE: 3 are needed as a command will take one,
3022                  *       and there is a minimum of 2 that must be
3023                  *       maintained between the r and w indexes
3024                  */
3025                 if (txq->available <= 3) {
3026                         IPW_DEBUG_TX("no room in tx_queue\n");
3027                         break;
3028                 }
3029
3030                 element = priv->msg_pend_list.next;
3031                 list_del(element);
3032                 DEC_STAT(&priv->msg_pend_stat);
3033
3034                 packet = list_entry(element, struct ipw2100_tx_packet, list);
3035
3036                 IPW_DEBUG_TX("using TBD at virt=%p, phys=%04X\n",
3037                              &txq->drv[txq->next],
3038                              (u32) (txq->nic + txq->next *
3039                                       sizeof(struct ipw2100_bd)));
3040
3041                 packet->index = txq->next;
3042
3043                 tbd = &txq->drv[txq->next];
3044
3045                 /* initialize TBD */
3046                 tbd->host_addr = packet->info.c_struct.cmd_phys;
3047                 tbd->buf_length = sizeof(struct ipw2100_cmd_header);
3048                 /* not marking number of fragments causes problems
3049                  * with f/w debug version */
3050                 tbd->num_fragments = 1;
3051                 tbd->status.info.field =
3052                     IPW_BD_STATUS_TX_FRAME_COMMAND |
3053                     IPW_BD_STATUS_TX_INTERRUPT_ENABLE;
3054
3055                 /* update TBD queue counters */
3056                 txq->next++;
3057                 txq->next %= txq->entries;
3058                 txq->available--;
3059                 DEC_STAT(&priv->txq_stat);
3060
3061                 list_add_tail(element, &priv->fw_pend_list);
3062                 INC_STAT(&priv->fw_pend_stat);
3063         }
3064
3065         if (txq->next != next) {
3066                 /* kick off the DMA by notifying firmware the
3067                  * write index has moved; make sure TBD stores are sync'd */
3068                 wmb();
3069                 write_register(priv->net_dev,
3070                                IPW_MEM_HOST_SHARED_TX_QUEUE_WRITE_INDEX,
3071                                txq->next);
3072         }
3073 }
3074
3075 /*
3076  * ipw2100_tx_send_data
3077  *
3078  */
3079 static void ipw2100_tx_send_data(struct ipw2100_priv *priv)
3080 {
3081         struct list_head *element;
3082         struct ipw2100_tx_packet *packet;
3083         struct ipw2100_bd_queue *txq = &priv->tx_queue;
3084         struct ipw2100_bd *tbd;
3085         int next = txq->next;
3086         int i = 0;
3087         struct ipw2100_data_header *ipw_hdr;
3088         struct libipw_hdr_3addr *hdr;
3089
3090         while (!list_empty(&priv->tx_pend_list)) {
3091                 /* if there isn't enough space in TBD queue, then
3092                  * don't stuff a new one in.
3093                  * NOTE: 4 are needed as a data will take two,
3094                  *       and there is a minimum of 2 that must be
3095                  *       maintained between the r and w indexes
3096                  */
3097                 element = priv->tx_pend_list.next;
3098                 packet = list_entry(element, struct ipw2100_tx_packet, list);
3099
3100                 if (unlikely(1 + packet->info.d_struct.txb->nr_frags >
3101                              IPW_MAX_BDS)) {
3102                         /* TODO: Support merging buffers if more than
3103                          * IPW_MAX_BDS are used */
3104                         IPW_DEBUG_INFO("%s: Maximum BD threshold exceeded.  "
3105                                        "Increase fragmentation level.\n",
3106                                        priv->net_dev->name);
3107                 }
3108
3109                 if (txq->available <= 3 + packet->info.d_struct.txb->nr_frags) {
3110                         IPW_DEBUG_TX("no room in tx_queue\n");
3111                         break;
3112                 }
3113
3114                 list_del(element);
3115                 DEC_STAT(&priv->tx_pend_stat);
3116
3117                 tbd = &txq->drv[txq->next];
3118
3119                 packet->index = txq->next;
3120
3121                 ipw_hdr = packet->info.d_struct.data;
3122                 hdr = (struct libipw_hdr_3addr *)packet->info.d_struct.txb->
3123                     fragments[0]->data;
3124
3125                 if (priv->ieee->iw_mode == IW_MODE_INFRA) {
3126                         /* To DS: Addr1 = BSSID, Addr2 = SA,
3127                            Addr3 = DA */
3128                         memcpy(ipw_hdr->src_addr, hdr->addr2, ETH_ALEN);
3129                         memcpy(ipw_hdr->dst_addr, hdr->addr3, ETH_ALEN);
3130                 } else if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
3131                         /* not From/To DS: Addr1 = DA, Addr2 = SA,
3132                            Addr3 = BSSID */
3133                         memcpy(ipw_hdr->src_addr, hdr->addr2, ETH_ALEN);
3134                         memcpy(ipw_hdr->dst_addr, hdr->addr1, ETH_ALEN);
3135                 }
3136
3137                 ipw_hdr->host_command_reg = SEND;
3138                 ipw_hdr->host_command_reg1 = 0;
3139
3140                 /* For now we only support host based encryption */
3141                 ipw_hdr->needs_encryption = 0;
3142                 ipw_hdr->encrypted = packet->info.d_struct.txb->encrypted;
3143                 if (packet->info.d_struct.txb->nr_frags > 1)
3144                         ipw_hdr->fragment_size =
3145                             packet->info.d_struct.txb->frag_size -
3146                             LIBIPW_3ADDR_LEN;
3147                 else
3148                         ipw_hdr->fragment_size = 0;
3149
3150                 tbd->host_addr = packet->info.d_struct.data_phys;
3151                 tbd->buf_length = sizeof(struct ipw2100_data_header);
3152                 tbd->num_fragments = 1 + packet->info.d_struct.txb->nr_frags;
3153                 tbd->status.info.field =
3154                     IPW_BD_STATUS_TX_FRAME_802_3 |
3155                     IPW_BD_STATUS_TX_FRAME_NOT_LAST_FRAGMENT;
3156                 txq->next++;
3157                 txq->next %= txq->entries;
3158
3159                 IPW_DEBUG_TX("data header tbd TX%d P=%08x L=%d\n",
3160                              packet->index, tbd->host_addr, tbd->buf_length);
3161 #ifdef CONFIG_IPW2100_DEBUG
3162                 if (packet->info.d_struct.txb->nr_frags > 1)
3163                         IPW_DEBUG_FRAG("fragment Tx: %d frames\n",
3164                                        packet->info.d_struct.txb->nr_frags);
3165 #endif
3166
3167                 for (i = 0; i < packet->info.d_struct.txb->nr_frags; i++) {
3168                         tbd = &txq->drv[txq->next];
3169                         if (i == packet->info.d_struct.txb->nr_frags - 1)
3170                                 tbd->status.info.field =
3171                                     IPW_BD_STATUS_TX_FRAME_802_3 |
3172                                     IPW_BD_STATUS_TX_INTERRUPT_ENABLE;
3173                         else
3174                                 tbd->status.info.field =
3175                                     IPW_BD_STATUS_TX_FRAME_802_3 |
3176                                     IPW_BD_STATUS_TX_FRAME_NOT_LAST_FRAGMENT;
3177
3178                         tbd->buf_length = packet->info.d_struct.txb->
3179                             fragments[i]->len - LIBIPW_3ADDR_LEN;
3180
3181                         tbd->host_addr = pci_map_single(priv->pci_dev,
3182                                                         packet->info.d_struct.
3183                                                         txb->fragments[i]->
3184                                                         data +
3185                                                         LIBIPW_3ADDR_LEN,
3186                                                         tbd->buf_length,
3187                                                         PCI_DMA_TODEVICE);
3188                         if (pci_dma_mapping_error(priv->pci_dev,
3189                                                   tbd->host_addr)) {
3190                                 IPW_DEBUG_TX("dma mapping error\n");
3191                                 break;
3192                         }
3193
3194                         IPW_DEBUG_TX("data frag tbd TX%d P=%08x L=%d\n",
3195                                      txq->next, tbd->host_addr,
3196                                      tbd->buf_length);
3197
3198                         pci_dma_sync_single_for_device(priv->pci_dev,
3199                                                        tbd->host_addr,
3200                                                        tbd->buf_length,
3201                                                        PCI_DMA_TODEVICE);
3202
3203                         txq->next++;
3204                         txq->next %= txq->entries;
3205                 }
3206
3207                 txq->available -= 1 + packet->info.d_struct.txb->nr_frags;
3208                 SET_STAT(&priv->txq_stat, txq->available);
3209
3210                 list_add_tail(element, &priv->fw_pend_list);
3211                 INC_STAT(&priv->fw_pend_stat);
3212         }
3213
3214         if (txq->next != next) {
3215                 /* kick off the DMA by notifying firmware the
3216                  * write index has moved; make sure TBD stores are sync'd */
3217                 write_register(priv->net_dev,
3218                                IPW_MEM_HOST_SHARED_TX_QUEUE_WRITE_INDEX,
3219                                txq->next);
3220         }
3221 }
3222
3223 static void ipw2100_irq_tasklet(struct ipw2100_priv *priv)
3224 {
3225         struct net_device *dev = priv->net_dev;
3226         unsigned long flags;
3227         u32 inta, tmp;
3228
3229         spin_lock_irqsave(&priv->low_lock, flags);
3230         ipw2100_disable_interrupts(priv);
3231
3232         read_register(dev, IPW_REG_INTA, &inta);
3233
3234         IPW_DEBUG_ISR("enter - INTA: 0x%08lX\n",
3235                       (unsigned long)inta & IPW_INTERRUPT_MASK);
3236
3237         priv->in_isr++;
3238         priv->interrupts++;
3239
3240         /* We do not loop and keep polling for more interrupts as this
3241          * is frowned upon and doesn't play nicely with other potentially
3242          * chained IRQs */
3243         IPW_DEBUG_ISR("INTA: 0x%08lX\n",
3244                       (unsigned long)inta & IPW_INTERRUPT_MASK);
3245
3246         if (inta & IPW2100_INTA_FATAL_ERROR) {
3247                 printk(KERN_WARNING DRV_NAME
3248                        ": Fatal interrupt. Scheduling firmware restart.\n");
3249                 priv->inta_other++;
3250                 write_register(dev, IPW_REG_INTA, IPW2100_INTA_FATAL_ERROR);
3251
3252                 read_nic_dword(dev, IPW_NIC_FATAL_ERROR, &priv->fatal_error);
3253                 IPW_DEBUG_INFO("%s: Fatal error value: 0x%08X\n",
3254                                priv->net_dev->name, priv->fatal_error);
3255
3256                 read_nic_dword(dev, IPW_ERROR_ADDR(priv->fatal_error), &tmp);
3257                 IPW_DEBUG_INFO("%s: Fatal error address value: 0x%08X\n",
3258                                priv->net_dev->name, tmp);
3259
3260                 /* Wake up any sleeping jobs */
3261                 schedule_reset(priv);
3262         }
3263
3264         if (inta & IPW2100_INTA_PARITY_ERROR) {
3265                 printk(KERN_ERR DRV_NAME
3266                        ": ***** PARITY ERROR INTERRUPT !!!!\n");
3267                 priv->inta_other++;
3268                 write_register(dev, IPW_REG_INTA, IPW2100_INTA_PARITY_ERROR);
3269         }
3270
3271         if (inta & IPW2100_INTA_RX_TRANSFER) {
3272                 IPW_DEBUG_ISR("RX interrupt\n");
3273
3274                 priv->rx_interrupts++;
3275
3276                 write_register(dev, IPW_REG_INTA, IPW2100_INTA_RX_TRANSFER);
3277
3278                 __ipw2100_rx_process(priv);
3279                 __ipw2100_tx_complete(priv);
3280         }
3281
3282         if (inta & IPW2100_INTA_TX_TRANSFER) {
3283                 IPW_DEBUG_ISR("TX interrupt\n");
3284
3285                 priv->tx_interrupts++;
3286
3287                 write_register(dev, IPW_REG_INTA, IPW2100_INTA_TX_TRANSFER);
3288
3289                 __ipw2100_tx_complete(priv);
3290                 ipw2100_tx_send_commands(priv);
3291                 ipw2100_tx_send_data(priv);
3292         }
3293
3294         if (inta & IPW2100_INTA_TX_COMPLETE) {
3295                 IPW_DEBUG_ISR("TX complete\n");
3296                 priv->inta_other++;
3297                 write_register(dev, IPW_REG_INTA, IPW2100_INTA_TX_COMPLETE);
3298
3299                 __ipw2100_tx_complete(priv);
3300         }
3301
3302         if (inta & IPW2100_INTA_EVENT_INTERRUPT) {
3303                 /* ipw2100_handle_event(dev); */
3304                 priv->inta_other++;
3305                 write_register(dev, IPW_REG_INTA, IPW2100_INTA_EVENT_INTERRUPT);
3306         }
3307
3308         if (inta & IPW2100_INTA_FW_INIT_DONE) {
3309                 IPW_DEBUG_ISR("FW init done interrupt\n");
3310                 priv->inta_other++;
3311
3312                 read_register(dev, IPW_REG_INTA, &tmp);
3313                 if (tmp & (IPW2100_INTA_FATAL_ERROR |
3314                            IPW2100_INTA_PARITY_ERROR)) {
3315                         write_register(dev, IPW_REG_INTA,
3316                                        IPW2100_INTA_FATAL_ERROR |
3317                                        IPW2100_INTA_PARITY_ERROR);
3318                 }
3319
3320                 write_register(dev, IPW_REG_INTA, IPW2100_INTA_FW_INIT_DONE);
3321         }
3322
3323         if (inta & IPW2100_INTA_STATUS_CHANGE) {
3324                 IPW_DEBUG_ISR("Status change interrupt\n");
3325                 priv->inta_other++;
3326                 write_register(dev, IPW_REG_INTA, IPW2100_INTA_STATUS_CHANGE);
3327         }
3328
3329         if (inta & IPW2100_INTA_SLAVE_MODE_HOST_COMMAND_DONE) {
3330                 IPW_DEBUG_ISR("slave host mode interrupt\n");
3331                 priv->inta_other++;
3332                 write_register(dev, IPW_REG_INTA,
3333                                IPW2100_INTA_SLAVE_MODE_HOST_COMMAND_DONE);
3334         }
3335
3336         priv->in_isr--;
3337         ipw2100_enable_interrupts(priv);
3338
3339         spin_unlock_irqrestore(&priv->low_lock, flags);
3340
3341         IPW_DEBUG_ISR("exit\n");
3342 }
3343
3344 static irqreturn_t ipw2100_interrupt(int irq, void *data)
3345 {
3346         struct ipw2100_priv *priv = data;
3347         u32 inta, inta_mask;
3348
3349         if (!data)
3350                 return IRQ_NONE;
3351
3352         spin_lock(&priv->low_lock);
3353
3354         /* We check to see if we should be ignoring interrupts before
3355          * we touch the hardware.  During ucode load if we try and handle
3356          * an interrupt we can cause keyboard problems as well as cause
3357          * the ucode to fail to initialize */
3358         if (!(priv->status & STATUS_INT_ENABLED)) {
3359                 /* Shared IRQ */
3360                 goto none;
3361         }
3362
3363         read_register(priv->net_dev, IPW_REG_INTA_MASK, &inta_mask);
3364         read_register(priv->net_dev, IPW_REG_INTA, &inta);
3365
3366         if (inta == 0xFFFFFFFF) {
3367                 /* Hardware disappeared */
3368                 printk(KERN_WARNING DRV_NAME ": IRQ INTA == 0xFFFFFFFF\n");
3369                 goto none;
3370         }
3371
3372         inta &= IPW_INTERRUPT_MASK;
3373
3374         if (!(inta & inta_mask)) {
3375                 /* Shared interrupt */
3376                 goto none;
3377         }
3378
3379         /* We disable the hardware interrupt here just to prevent unneeded
3380          * calls to be made.  We disable this again within the actual
3381          * work tasklet, so if another part of the code re-enables the
3382          * interrupt, that is fine */
3383         ipw2100_disable_interrupts(priv);
3384
3385         tasklet_schedule(&priv->irq_tasklet);
3386         spin_unlock(&priv->low_lock);
3387
3388         return IRQ_HANDLED;
3389       none:
3390         spin_unlock(&priv->low_lock);
3391         return IRQ_NONE;
3392 }
3393
3394 static netdev_tx_t ipw2100_tx(struct libipw_txb *txb,
3395                               struct net_device *dev, int pri)
3396 {
3397         struct ipw2100_priv *priv = libipw_priv(dev);
3398         struct list_head *element;
3399         struct ipw2100_tx_packet *packet;
3400         unsigned long flags;
3401
3402         spin_lock_irqsave(&priv->low_lock, flags);
3403
3404         if (!(priv->status & STATUS_ASSOCIATED)) {
3405                 IPW_DEBUG_INFO("Can not transmit when not connected.\n");
3406                 priv->net_dev->stats.tx_carrier_errors++;
3407                 netif_stop_queue(dev);
3408                 goto fail_unlock;
3409         }
3410
3411         if (list_empty(&priv->tx_free_list))
3412                 goto fail_unlock;
3413
3414         element = priv->tx_free_list.next;
3415         packet = list_entry(element, struct ipw2100_tx_packet, list);
3416
3417         packet->info.d_struct.txb = txb;
3418
3419         IPW_DEBUG_TX("Sending fragment (%d bytes):\n", txb->fragments[0]->len);
3420         printk_buf(IPW_DL_TX, txb->fragments[0]->data, txb->fragments[0]->len);
3421
3422         packet->jiffy_start = jiffies;
3423
3424         list_del(element);
3425         DEC_STAT(&priv->tx_free_stat);
3426
3427         list_add_tail(element, &priv->tx_pend_list);
3428         INC_STAT(&priv->tx_pend_stat);
3429
3430         ipw2100_tx_send_data(priv);
3431
3432         spin_unlock_irqrestore(&priv->low_lock, flags);
3433         return NETDEV_TX_OK;
3434
3435 fail_unlock:
3436         netif_stop_queue(dev);
3437         spin_unlock_irqrestore(&priv->low_lock, flags);
3438         return NETDEV_TX_BUSY;
3439 }
3440
3441 static int ipw2100_msg_allocate(struct ipw2100_priv *priv)
3442 {
3443         int i, j, err = -EINVAL;
3444         void *v;
3445         dma_addr_t p;
3446
3447         priv->msg_buffers =
3448             kmalloc(IPW_COMMAND_POOL_SIZE * sizeof(struct ipw2100_tx_packet),
3449                     GFP_KERNEL);
3450         if (!priv->msg_buffers)
3451                 return -ENOMEM;
3452
3453         for (i = 0; i < IPW_COMMAND_POOL_SIZE; i++) {
3454                 v = pci_zalloc_consistent(priv->pci_dev,
3455                                           sizeof(struct ipw2100_cmd_header),
3456                                           &p);
3457                 if (!v) {
3458                         printk(KERN_ERR DRV_NAME ": "
3459                                "%s: PCI alloc failed for msg "
3460                                "buffers.\n", priv->net_dev->name);
3461                         err = -ENOMEM;
3462                         break;
3463                 }
3464
3465                 priv->msg_buffers[i].type = COMMAND;
3466                 priv->msg_buffers[i].info.c_struct.cmd =
3467                     (struct ipw2100_cmd_header *)v;
3468                 priv->msg_buffers[i].info.c_struct.cmd_phys = p;
3469         }
3470
3471         if (i == IPW_COMMAND_POOL_SIZE)
3472                 return 0;
3473
3474         for (j = 0; j < i; j++) {
3475                 pci_free_consistent(priv->pci_dev,
3476                                     sizeof(struct ipw2100_cmd_header),
3477                                     priv->msg_buffers[j].info.c_struct.cmd,
3478                                     priv->msg_buffers[j].info.c_struct.
3479                                     cmd_phys);
3480         }
3481
3482         kfree(priv->msg_buffers);
3483         priv->msg_buffers = NULL;
3484
3485         return err;
3486 }
3487
3488 static int ipw2100_msg_initialize(struct ipw2100_priv *priv)
3489 {
3490         int i;
3491
3492         INIT_LIST_HEAD(&priv->msg_free_list);
3493         INIT_LIST_HEAD(&priv->msg_pend_list);
3494
3495         for (i = 0; i < IPW_COMMAND_POOL_SIZE; i++)
3496                 list_add_tail(&priv->msg_buffers[i].list, &priv->msg_free_list);
3497         SET_STAT(&priv->msg_free_stat, i);
3498
3499         return 0;
3500 }
3501
3502 static void ipw2100_msg_free(struct ipw2100_priv *priv)
3503 {
3504         int i;
3505
3506         if (!priv->msg_buffers)
3507                 return;
3508
3509         for (i = 0; i < IPW_COMMAND_POOL_SIZE; i++) {
3510                 pci_free_consistent(priv->pci_dev,
3511                                     sizeof(struct ipw2100_cmd_header),
3512                                     priv->msg_buffers[i].info.c_struct.cmd,
3513                                     priv->msg_buffers[i].info.c_struct.
3514                                     cmd_phys);
3515         }
3516
3517         kfree(priv->msg_buffers);
3518         priv->msg_buffers = NULL;
3519 }
3520
3521 static ssize_t show_pci(struct device *d, struct device_attribute *attr,
3522                         char *buf)
3523 {
3524         struct pci_dev *pci_dev = to_pci_dev(d);
3525         char *out = buf;
3526         int i, j;
3527         u32 val;
3528
3529         for (i = 0; i < 16; i++) {
3530                 out += sprintf(out, "[%08X] ", i * 16);
3531                 for (j = 0; j < 16; j += 4) {
3532                         pci_read_config_dword(pci_dev, i * 16 + j, &val);
3533                         out += sprintf(out, "%08X ", val);
3534                 }
3535                 out += sprintf(out, "\n");
3536         }
3537
3538         return out - buf;
3539 }
3540
3541 static DEVICE_ATTR(pci, 0444, show_pci, NULL);
3542
3543 static ssize_t show_cfg(struct device *d, struct device_attribute *attr,
3544                         char *buf)
3545 {
3546         struct ipw2100_priv *p = dev_get_drvdata(d);
3547         return sprintf(buf, "0x%08x\n", (int)p->config);
3548 }
3549
3550 static DEVICE_ATTR(cfg, 0444, show_cfg, NULL);
3551
3552 static ssize_t show_status(struct device *d, struct device_attribute *attr,
3553                            char *buf)
3554 {
3555         struct ipw2100_priv *p = dev_get_drvdata(d);
3556         return sprintf(buf, "0x%08x\n", (int)p->status);
3557 }
3558
3559 static DEVICE_ATTR(status, 0444, show_status, NULL);
3560
3561 static ssize_t show_capability(struct device *d, struct device_attribute *attr,
3562                                char *buf)
3563 {
3564         struct ipw2100_priv *p = dev_get_drvdata(d);
3565         return sprintf(buf, "0x%08x\n", (int)p->capability);
3566 }
3567
3568 static DEVICE_ATTR(capability, 0444, show_capability, NULL);
3569
3570 #define IPW2100_REG(x) { IPW_ ##x, #x }
3571 static const struct {
3572         u32 addr;
3573         const char *name;
3574 } hw_data[] = {
3575 IPW2100_REG(REG_GP_CNTRL),
3576             IPW2100_REG(REG_GPIO),
3577             IPW2100_REG(REG_INTA),
3578             IPW2100_REG(REG_INTA_MASK), IPW2100_REG(REG_RESET_REG),};
3579 #define IPW2100_NIC(x, s) { x, #x, s }
3580 static const struct {
3581         u32 addr;
3582         const char *name;
3583         size_t size;
3584 } nic_data[] = {
3585 IPW2100_NIC(IPW2100_CONTROL_REG, 2),
3586             IPW2100_NIC(0x210014, 1), IPW2100_NIC(0x210000, 1),};
3587 #define IPW2100_ORD(x, d) { IPW_ORD_ ##x, #x, d }
3588 static const struct {
3589         u8 index;
3590         const char *name;
3591         const char *desc;
3592 } ord_data[] = {
3593 IPW2100_ORD(STAT_TX_HOST_REQUESTS, "requested Host Tx's (MSDU)"),
3594             IPW2100_ORD(STAT_TX_HOST_COMPLETE,
3595                                 "successful Host Tx's (MSDU)"),
3596             IPW2100_ORD(STAT_TX_DIR_DATA,
3597                                 "successful Directed Tx's (MSDU)"),
3598             IPW2100_ORD(STAT_TX_DIR_DATA1,
3599                                 "successful Directed Tx's (MSDU) @ 1MB"),
3600             IPW2100_ORD(STAT_TX_DIR_DATA2,
3601                                 "successful Directed Tx's (MSDU) @ 2MB"),
3602             IPW2100_ORD(STAT_TX_DIR_DATA5_5,
3603                                 "successful Directed Tx's (MSDU) @ 5_5MB"),
3604             IPW2100_ORD(STAT_TX_DIR_DATA11,
3605                                 "successful Directed Tx's (MSDU) @ 11MB"),
3606             IPW2100_ORD(STAT_TX_NODIR_DATA1,
3607                                 "successful Non_Directed Tx's (MSDU) @ 1MB"),
3608             IPW2100_ORD(STAT_TX_NODIR_DATA2,
3609                                 "successful Non_Directed Tx's (MSDU) @ 2MB"),
3610             IPW2100_ORD(STAT_TX_NODIR_DATA5_5,
3611                                 "successful Non_Directed Tx's (MSDU) @ 5.5MB"),
3612             IPW2100_ORD(STAT_TX_NODIR_DATA11,
3613                                 "successful Non_Directed Tx's (MSDU) @ 11MB"),
3614             IPW2100_ORD(STAT_NULL_DATA, "successful NULL data Tx's"),
3615             IPW2100_ORD(STAT_TX_RTS, "successful Tx RTS"),
3616             IPW2100_ORD(STAT_TX_CTS, "successful Tx CTS"),
3617             IPW2100_ORD(STAT_TX_ACK, "successful Tx ACK"),
3618             IPW2100_ORD(STAT_TX_ASSN, "successful Association Tx's"),
3619             IPW2100_ORD(STAT_TX_ASSN_RESP,
3620                                 "successful Association response Tx's"),
3621             IPW2100_ORD(STAT_TX_REASSN,
3622                                 "successful Reassociation Tx's"),
3623             IPW2100_ORD(STAT_TX_REASSN_RESP,
3624                                 "successful Reassociation response Tx's"),
3625             IPW2100_ORD(STAT_TX_PROBE,
3626                                 "probes successfully transmitted"),
3627             IPW2100_ORD(STAT_TX_PROBE_RESP,
3628                                 "probe responses successfully transmitted"),
3629             IPW2100_ORD(STAT_TX_BEACON, "tx beacon"),
3630             IPW2100_ORD(STAT_TX_ATIM, "Tx ATIM"),
3631             IPW2100_ORD(STAT_TX_DISASSN,
3632                                 "successful Disassociation TX"),
3633             IPW2100_ORD(STAT_TX_AUTH, "successful Authentication Tx"),
3634             IPW2100_ORD(STAT_TX_DEAUTH,
3635                                 "successful Deauthentication TX"),
3636             IPW2100_ORD(STAT_TX_TOTAL_BYTES,
3637                                 "Total successful Tx data bytes"),
3638             IPW2100_ORD(STAT_TX_RETRIES, "Tx retries"),
3639             IPW2100_ORD(STAT_TX_RETRY1, "Tx retries at 1MBPS"),
3640             IPW2100_ORD(STAT_TX_RETRY2, "Tx retries at 2MBPS"),
3641             IPW2100_ORD(STAT_TX_RETRY5_5, "Tx retries at 5.5MBPS"),
3642             IPW2100_ORD(STAT_TX_RETRY11, "Tx retries at 11MBPS"),
3643             IPW2100_ORD(STAT_TX_FAILURES, "Tx Failures"),
3644             IPW2100_ORD(STAT_TX_MAX_TRIES_IN_HOP,
3645                                 "times max tries in a hop failed"),
3646             IPW2100_ORD(STAT_TX_DISASSN_FAIL,
3647                                 "times disassociation failed"),
3648             IPW2100_ORD(STAT_TX_ERR_CTS, "missed/bad CTS frames"),
3649             IPW2100_ORD(STAT_TX_ERR_ACK, "tx err due to acks"),
3650             IPW2100_ORD(STAT_RX_HOST, "packets passed to host"),
3651             IPW2100_ORD(STAT_RX_DIR_DATA, "directed packets"),
3652             IPW2100_ORD(STAT_RX_DIR_DATA1, "directed packets at 1MB"),
3653             IPW2100_ORD(STAT_RX_DIR_DATA2, "directed packets at 2MB"),
3654             IPW2100_ORD(STAT_RX_DIR_DATA5_5,
3655                                 "directed packets at 5.5MB"),
3656             IPW2100_ORD(STAT_RX_DIR_DATA11, "directed packets at 11MB"),
3657             IPW2100_ORD(STAT_RX_NODIR_DATA, "nondirected packets"),
3658             IPW2100_ORD(STAT_RX_NODIR_DATA1,
3659                                 "nondirected packets at 1MB"),
3660             IPW2100_ORD(STAT_RX_NODIR_DATA2,
3661                                 "nondirected packets at 2MB"),
3662             IPW2100_ORD(STAT_RX_NODIR_DATA5_5,
3663                                 "nondirected packets at 5.5MB"),
3664             IPW2100_ORD(STAT_RX_NODIR_DATA11,
3665                                 "nondirected packets at 11MB"),
3666             IPW2100_ORD(STAT_RX_NULL_DATA, "null data rx's"),
3667             IPW2100_ORD(STAT_RX_RTS, "Rx RTS"), IPW2100_ORD(STAT_RX_CTS,
3668                                                                     "Rx CTS"),
3669             IPW2100_ORD(STAT_RX_ACK, "Rx ACK"),
3670             IPW2100_ORD(STAT_RX_CFEND, "Rx CF End"),
3671             IPW2100_ORD(STAT_RX_CFEND_ACK, "Rx CF End + CF Ack"),
3672             IPW2100_ORD(STAT_RX_ASSN, "Association Rx's"),
3673             IPW2100_ORD(STAT_RX_ASSN_RESP, "Association response Rx's"),
3674             IPW2100_ORD(STAT_RX_REASSN, "Reassociation Rx's"),
3675             IPW2100_ORD(STAT_RX_REASSN_RESP,
3676                                 "Reassociation response Rx's"),
3677             IPW2100_ORD(STAT_RX_PROBE, "probe Rx's"),
3678             IPW2100_ORD(STAT_RX_PROBE_RESP, "probe response Rx's"),
3679             IPW2100_ORD(STAT_RX_BEACON, "Rx beacon"),
3680             IPW2100_ORD(STAT_RX_ATIM, "Rx ATIM"),
3681             IPW2100_ORD(STAT_RX_DISASSN, "disassociation Rx"),
3682             IPW2100_ORD(STAT_RX_AUTH, "authentication Rx"),
3683             IPW2100_ORD(STAT_RX_DEAUTH, "deauthentication Rx"),
3684             IPW2100_ORD(STAT_RX_TOTAL_BYTES,
3685                                 "Total rx data bytes received"),
3686             IPW2100_ORD(STAT_RX_ERR_CRC, "packets with Rx CRC error"),
3687             IPW2100_ORD(STAT_RX_ERR_CRC1, "Rx CRC errors at 1MB"),
3688             IPW2100_ORD(STAT_RX_ERR_CRC2, "Rx CRC errors at 2MB"),
3689             IPW2100_ORD(STAT_RX_ERR_CRC5_5, "Rx CRC errors at 5.5MB"),
3690             IPW2100_ORD(STAT_RX_ERR_CRC11, "Rx CRC errors at 11MB"),
3691             IPW2100_ORD(STAT_RX_DUPLICATE1,
3692                                 "duplicate rx packets at 1MB"),
3693             IPW2100_ORD(STAT_RX_DUPLICATE2,
3694                                 "duplicate rx packets at 2MB"),
3695             IPW2100_ORD(STAT_RX_DUPLICATE5_5,
3696                                 "duplicate rx packets at 5.5MB"),
3697             IPW2100_ORD(STAT_RX_DUPLICATE11,
3698                                 "duplicate rx packets at 11MB"),
3699             IPW2100_ORD(STAT_RX_DUPLICATE, "duplicate rx packets"),
3700             IPW2100_ORD(PERS_DB_LOCK, "locking fw permanent  db"),
3701             IPW2100_ORD(PERS_DB_SIZE, "size of fw permanent  db"),
3702             IPW2100_ORD(PERS_DB_ADDR, "address of fw permanent  db"),
3703             IPW2100_ORD(STAT_RX_INVALID_PROTOCOL,
3704                                 "rx frames with invalid protocol"),
3705             IPW2100_ORD(SYS_BOOT_TIME, "Boot time"),
3706             IPW2100_ORD(STAT_RX_NO_BUFFER,
3707                                 "rx frames rejected due to no buffer"),
3708             IPW2100_ORD(STAT_RX_MISSING_FRAG,
3709                                 "rx frames dropped due to missing fragment"),
3710             IPW2100_ORD(STAT_RX_ORPHAN_FRAG,
3711                                 "rx frames dropped due to non-sequential fragment"),
3712             IPW2100_ORD(STAT_RX_ORPHAN_FRAME,
3713                                 "rx frames dropped due to unmatched 1st frame"),
3714             IPW2100_ORD(STAT_RX_FRAG_AGEOUT,
3715                                 "rx frames dropped due to uncompleted frame"),
3716             IPW2100_ORD(STAT_RX_ICV_ERRORS,
3717                                 "ICV errors during decryption"),
3718             IPW2100_ORD(STAT_PSP_SUSPENSION, "times adapter suspended"),
3719             IPW2100_ORD(STAT_PSP_BCN_TIMEOUT, "beacon timeout"),
3720             IPW2100_ORD(STAT_PSP_POLL_TIMEOUT,
3721                                 "poll response timeouts"),
3722             IPW2100_ORD(STAT_PSP_NONDIR_TIMEOUT,
3723                                 "timeouts waiting for last {broad,multi}cast pkt"),
3724             IPW2100_ORD(STAT_PSP_RX_DTIMS, "PSP DTIMs received"),
3725             IPW2100_ORD(STAT_PSP_RX_TIMS, "PSP TIMs received"),
3726             IPW2100_ORD(STAT_PSP_STATION_ID, "PSP Station ID"),
3727             IPW2100_ORD(LAST_ASSN_TIME, "RTC time of last association"),
3728             IPW2100_ORD(STAT_PERCENT_MISSED_BCNS,
3729                                 "current calculation of % missed beacons"),
3730             IPW2100_ORD(STAT_PERCENT_RETRIES,
3731                                 "current calculation of % missed tx retries"),
3732             IPW2100_ORD(ASSOCIATED_AP_PTR,
3733                                 "0 if not associated, else pointer to AP table entry"),
3734             IPW2100_ORD(AVAILABLE_AP_CNT,
3735                                 "AP's decsribed in the AP table"),
3736             IPW2100_ORD(AP_LIST_PTR, "Ptr to list of available APs"),
3737             IPW2100_ORD(STAT_AP_ASSNS, "associations"),
3738             IPW2100_ORD(STAT_ASSN_FAIL, "association failures"),
3739             IPW2100_ORD(STAT_ASSN_RESP_FAIL,
3740                                 "failures due to response fail"),
3741             IPW2100_ORD(STAT_FULL_SCANS, "full scans"),
3742             IPW2100_ORD(CARD_DISABLED, "Card Disabled"),
3743             IPW2100_ORD(STAT_ROAM_INHIBIT,
3744                                 "times roaming was inhibited due to activity"),
3745             IPW2100_ORD(RSSI_AT_ASSN,
3746                                 "RSSI of associated AP at time of association"),
3747             IPW2100_ORD(STAT_ASSN_CAUSE1,
3748                                 "reassociation: no probe response or TX on hop"),
3749             IPW2100_ORD(STAT_ASSN_CAUSE2,
3750                                 "reassociation: poor tx/rx quality"),
3751             IPW2100_ORD(STAT_ASSN_CAUSE3,
3752                                 "reassociation: tx/rx quality (excessive AP load"),
3753             IPW2100_ORD(STAT_ASSN_CAUSE4,
3754                                 "reassociation: AP RSSI level"),
3755             IPW2100_ORD(STAT_ASSN_CAUSE5,
3756                                 "reassociations due to load leveling"),
3757             IPW2100_ORD(STAT_AUTH_FAIL, "times authentication failed"),
3758             IPW2100_ORD(STAT_AUTH_RESP_FAIL,
3759                                 "times authentication response failed"),
3760             IPW2100_ORD(STATION_TABLE_CNT,
3761                                 "entries in association table"),
3762             IPW2100_ORD(RSSI_AVG_CURR, "Current avg RSSI"),
3763             IPW2100_ORD(POWER_MGMT_MODE, "Power mode - 0=CAM, 1=PSP"),
3764             IPW2100_ORD(COUNTRY_CODE,
3765                                 "IEEE country code as recv'd from beacon"),
3766             IPW2100_ORD(COUNTRY_CHANNELS,
3767                                 "channels supported by country"),
3768             IPW2100_ORD(RESET_CNT, "adapter resets (warm)"),
3769             IPW2100_ORD(BEACON_INTERVAL, "Beacon interval"),
3770             IPW2100_ORD(ANTENNA_DIVERSITY,
3771                                 "TRUE if antenna diversity is disabled"),
3772             IPW2100_ORD(DTIM_PERIOD, "beacon intervals between DTIMs"),
3773             IPW2100_ORD(OUR_FREQ,
3774                                 "current radio freq lower digits - channel ID"),
3775             IPW2100_ORD(RTC_TIME, "current RTC time"),
3776             IPW2100_ORD(PORT_TYPE, "operating mode"),
3777             IPW2100_ORD(CURRENT_TX_RATE, "current tx rate"),
3778             IPW2100_ORD(SUPPORTED_RATES, "supported tx rates"),
3779             IPW2100_ORD(ATIM_WINDOW, "current ATIM Window"),
3780             IPW2100_ORD(BASIC_RATES, "basic tx rates"),
3781             IPW2100_ORD(NIC_HIGHEST_RATE, "NIC highest tx rate"),
3782             IPW2100_ORD(AP_HIGHEST_RATE, "AP highest tx rate"),
3783             IPW2100_ORD(CAPABILITIES,
3784                                 "Management frame capability field"),
3785             IPW2100_ORD(AUTH_TYPE, "Type of authentication"),
3786             IPW2100_ORD(RADIO_TYPE, "Adapter card platform type"),
3787             IPW2100_ORD(RTS_THRESHOLD,
3788                                 "Min packet length for RTS handshaking"),
3789             IPW2100_ORD(INT_MODE, "International mode"),
3790             IPW2100_ORD(FRAGMENTATION_THRESHOLD,
3791                                 "protocol frag threshold"),
3792             IPW2100_ORD(EEPROM_SRAM_DB_BLOCK_START_ADDRESS,
3793                                 "EEPROM offset in SRAM"),
3794             IPW2100_ORD(EEPROM_SRAM_DB_BLOCK_SIZE,
3795                                 "EEPROM size in SRAM"),
3796             IPW2100_ORD(EEPROM_SKU_CAPABILITY, "EEPROM SKU Capability"),
3797             IPW2100_ORD(EEPROM_IBSS_11B_CHANNELS,
3798                                 "EEPROM IBSS 11b channel set"),
3799             IPW2100_ORD(MAC_VERSION, "MAC Version"),
3800             IPW2100_ORD(MAC_REVISION, "MAC Revision"),
3801             IPW2100_ORD(RADIO_VERSION, "Radio Version"),
3802             IPW2100_ORD(NIC_MANF_DATE_TIME, "MANF Date/Time STAMP"),
3803             IPW2100_ORD(UCODE_VERSION, "Ucode Version"),};
3804
3805 static ssize_t show_registers(struct device *d, struct device_attribute *attr,
3806                               char *buf)
3807 {
3808         int i;
3809         struct ipw2100_priv *priv = dev_get_drvdata(d);
3810         struct net_device *dev = priv->net_dev;
3811         char *out = buf;
3812         u32 val = 0;
3813
3814         out += sprintf(out, "%30s [Address ] : Hex\n", "Register");
3815
3816         for (i = 0; i < ARRAY_SIZE(hw_data); i++) {
3817                 read_register(dev, hw_data[i].addr, &val);
3818                 out += sprintf(out, "%30s [%08X] : %08X\n",
3819                                hw_data[i].name, hw_data[i].addr, val);
3820         }
3821
3822         return out - buf;
3823 }
3824
3825 static DEVICE_ATTR(registers, 0444, show_registers, NULL);
3826
3827 static ssize_t show_hardware(struct device *d, struct device_attribute *attr,
3828                              char *buf)
3829 {
3830         struct ipw2100_priv *priv = dev_get_drvdata(d);
3831         struct net_device *dev = priv->net_dev;
3832         char *out = buf;
3833         int i;
3834
3835         out += sprintf(out, "%30s [Address ] : Hex\n", "NIC entry");
3836
3837         for (i = 0; i < ARRAY_SIZE(nic_data); i++) {
3838                 u8 tmp8;
3839                 u16 tmp16;
3840                 u32 tmp32;
3841
3842                 switch (nic_data[i].size) {
3843                 case 1:
3844                         read_nic_byte(dev, nic_data[i].addr, &tmp8);
3845                         out += sprintf(out, "%30s [%08X] : %02X\n",
3846                                        nic_data[i].name, nic_data[i].addr,
3847                                        tmp8);
3848                         break;
3849                 case 2:
3850                         read_nic_word(dev, nic_data[i].addr, &tmp16);
3851                         out += sprintf(out, "%30s [%08X] : %04X\n",
3852                                        nic_data[i].name, nic_data[i].addr,
3853                                        tmp16);
3854                         break;
3855                 case 4:
3856                         read_nic_dword(dev, nic_data[i].addr, &tmp32);
3857                         out += sprintf(out, "%30s [%08X] : %08X\n",
3858                                        nic_data[i].name, nic_data[i].addr,
3859                                        tmp32);
3860                         break;
3861                 }
3862         }
3863         return out - buf;
3864 }
3865
3866 static DEVICE_ATTR(hardware, 0444, show_hardware, NULL);
3867
3868 static ssize_t show_memory(struct device *d, struct device_attribute *attr,
3869                            char *buf)
3870 {
3871         struct ipw2100_priv *priv = dev_get_drvdata(d);
3872         struct net_device *dev = priv->net_dev;
3873         static unsigned long loop = 0;
3874         int len = 0;
3875         u32 buffer[4];
3876         int i;
3877         char line[81];
3878
3879         if (loop >= 0x30000)
3880                 loop = 0;
3881
3882         /* sysfs provides us PAGE_SIZE buffer */
3883         while (len < PAGE_SIZE - 128 && loop < 0x30000) {
3884
3885                 if (priv->snapshot[0])
3886                         for (i = 0; i < 4; i++)
3887                                 buffer[i] =
3888                                     *(u32 *) SNAPSHOT_ADDR(loop + i * 4);
3889                 else
3890                         for (i = 0; i < 4; i++)
3891                                 read_nic_dword(dev, loop + i * 4, &buffer[i]);
3892
3893                 if (priv->dump_raw)
3894                         len += sprintf(buf + len,
3895                                        "%c%c%c%c"
3896                                        "%c%c%c%c"
3897                                        "%c%c%c%c"
3898                                        "%c%c%c%c",
3899                                        ((u8 *) buffer)[0x0],
3900                                        ((u8 *) buffer)[0x1],
3901                                        ((u8 *) buffer)[0x2],
3902                                        ((u8 *) buffer)[0x3],
3903                                        ((u8 *) buffer)[0x4],
3904                                        ((u8 *) buffer)[0x5],
3905                                        ((u8 *) buffer)[0x6],
3906                                        ((u8 *) buffer)[0x7],
3907                                        ((u8 *) buffer)[0x8],
3908                                        ((u8 *) buffer)[0x9],
3909                                        ((u8 *) buffer)[0xa],
3910                                        ((u8 *) buffer)[0xb],
3911                                        ((u8 *) buffer)[0xc],
3912                                        ((u8 *) buffer)[0xd],
3913                                        ((u8 *) buffer)[0xe],
3914                                        ((u8 *) buffer)[0xf]);
3915                 else
3916                         len += sprintf(buf + len, "%s\n",
3917                                        snprint_line(line, sizeof(line),
3918                                                     (u8 *) buffer, 16, loop));
3919                 loop += 16;
3920         }
3921
3922         return len;
3923 }
3924
3925 static ssize_t store_memory(struct device *d, struct device_attribute *attr,
3926                             const char *buf, size_t count)
3927 {
3928         struct ipw2100_priv *priv = dev_get_drvdata(d);
3929         struct net_device *dev = priv->net_dev;
3930         const char *p = buf;
3931
3932         (void)dev;              /* kill unused-var warning for debug-only code */
3933
3934         if (count < 1)
3935                 return count;
3936
3937         if (p[0] == '1' ||
3938             (count >= 2 && tolower(p[0]) == 'o' && tolower(p[1]) == 'n')) {
3939                 IPW_DEBUG_INFO("%s: Setting memory dump to RAW mode.\n",
3940                                dev->name);
3941                 priv->dump_raw = 1;
3942
3943         } else if (p[0] == '0' || (count >= 2 && tolower(p[0]) == 'o' &&
3944                                    tolower(p[1]) == 'f')) {
3945                 IPW_DEBUG_INFO("%s: Setting memory dump to HEX mode.\n",
3946                                dev->name);
3947                 priv->dump_raw = 0;
3948
3949         } else if (tolower(p[0]) == 'r') {
3950                 IPW_DEBUG_INFO("%s: Resetting firmware snapshot.\n", dev->name);
3951                 ipw2100_snapshot_free(priv);
3952
3953         } else
3954                 IPW_DEBUG_INFO("%s: Usage: 0|on = HEX, 1|off = RAW, "
3955                                "reset = clear memory snapshot\n", dev->name);
3956
3957         return count;
3958 }
3959
3960 static DEVICE_ATTR(memory, 0644, show_memory, store_memory);
3961
3962 static ssize_t show_ordinals(struct device *d, struct device_attribute *attr,
3963                              char *buf)
3964 {
3965         struct ipw2100_priv *priv = dev_get_drvdata(d);
3966         u32 val = 0;
3967         int len = 0;
3968         u32 val_len;
3969         static int loop = 0;
3970
3971         if (priv->status & STATUS_RF_KILL_MASK)
3972                 return 0;
3973
3974         if (loop >= ARRAY_SIZE(ord_data))
3975                 loop = 0;
3976
3977         /* sysfs provides us PAGE_SIZE buffer */
3978         while (len < PAGE_SIZE - 128 && loop < ARRAY_SIZE(ord_data)) {
3979                 val_len = sizeof(u32);
3980
3981                 if (ipw2100_get_ordinal(priv, ord_data[loop].index, &val,
3982                                         &val_len))
3983                         len += sprintf(buf + len, "[0x%02X] = ERROR    %s\n",
3984                                        ord_data[loop].index,
3985                                        ord_data[loop].desc);
3986                 else
3987                         len += sprintf(buf + len, "[0x%02X] = 0x%08X %s\n",
3988                                        ord_data[loop].index, val,
3989                                        ord_data[loop].desc);
3990                 loop++;
3991         }
3992
3993         return len;
3994 }
3995
3996 static DEVICE_ATTR(ordinals, 0444, show_ordinals, NULL);
3997
3998 static ssize_t show_stats(struct device *d, struct device_attribute *attr,
3999                           char *buf)
4000 {
4001         struct ipw2100_priv *priv = dev_get_drvdata(d);
4002         char *out = buf;
4003
4004         out += sprintf(out, "interrupts: %d {tx: %d, rx: %d, other: %d}\n",
4005                        priv->interrupts, priv->tx_interrupts,
4006                        priv->rx_interrupts, priv->inta_other);
4007         out += sprintf(out, "firmware resets: %d\n", priv->resets);
4008         out += sprintf(out, "firmware hangs: %d\n", priv->hangs);
4009 #ifdef CONFIG_IPW2100_DEBUG
4010         out += sprintf(out, "packet mismatch image: %s\n",
4011                        priv->snapshot[0] ? "YES" : "NO");
4012 #endif
4013
4014         return out - buf;
4015 }
4016
4017 static DEVICE_ATTR(stats, 0444, show_stats, NULL);
4018
4019 static int ipw2100_switch_mode(struct ipw2100_priv *priv, u32 mode)
4020 {
4021         int err;
4022
4023         if (mode == priv->ieee->iw_mode)
4024                 return 0;
4025
4026         err = ipw2100_disable_adapter(priv);
4027         if (err) {
4028                 printk(KERN_ERR DRV_NAME ": %s: Could not disable adapter %d\n",
4029                        priv->net_dev->name, err);
4030                 return err;
4031         }
4032
4033         switch (mode) {
4034         case IW_MODE_INFRA:
4035                 priv->net_dev->type = ARPHRD_ETHER;
4036                 break;
4037         case IW_MODE_ADHOC:
4038                 priv->net_dev->type = ARPHRD_ETHER;
4039                 break;
4040 #ifdef CONFIG_IPW2100_MONITOR
4041         case IW_MODE_MONITOR:
4042                 priv->last_mode = priv->ieee->iw_mode;
4043                 priv->net_dev->type = ARPHRD_IEEE80211_RADIOTAP;
4044                 break;
4045 #endif                          /* CONFIG_IPW2100_MONITOR */
4046         }
4047
4048         priv->ieee->iw_mode = mode;
4049
4050 #ifdef CONFIG_PM
4051         /* Indicate ipw2100_download_firmware download firmware
4052          * from disk instead of memory. */
4053         ipw2100_firmware.version = 0;
4054 #endif
4055
4056         printk(KERN_INFO "%s: Resetting on mode change.\n", priv->net_dev->name);
4057         priv->reset_backoff = 0;
4058         schedule_reset(priv);
4059
4060         return 0;
4061 }
4062
4063 static ssize_t show_internals(struct device *d, struct device_attribute *attr,
4064                               char *buf)
4065 {
4066         struct ipw2100_priv *priv = dev_get_drvdata(d);
4067         int len = 0;
4068
4069 #define DUMP_VAR(x,y) len += sprintf(buf + len, # x ": %" y "\n", priv-> x)
4070
4071         if (priv->status & STATUS_ASSOCIATED)
4072                 len += sprintf(buf + len, "connected: %lu\n",
4073                                get_seconds() - priv->connect_start);
4074         else
4075                 len += sprintf(buf + len, "not connected\n");
4076
4077         DUMP_VAR(ieee->crypt_info.crypt[priv->ieee->crypt_info.tx_keyidx], "p");
4078         DUMP_VAR(status, "08lx");
4079         DUMP_VAR(config, "08lx");
4080         DUMP_VAR(capability, "08lx");
4081
4082         len +=
4083             sprintf(buf + len, "last_rtc: %lu\n",
4084                     (unsigned long)priv->last_rtc);
4085
4086         DUMP_VAR(fatal_error, "d");
4087         DUMP_VAR(stop_hang_check, "d");
4088         DUMP_VAR(stop_rf_kill, "d");
4089         DUMP_VAR(messages_sent, "d");
4090
4091         DUMP_VAR(tx_pend_stat.value, "d");
4092         DUMP_VAR(tx_pend_stat.hi, "d");
4093
4094         DUMP_VAR(tx_free_stat.value, "d");
4095         DUMP_VAR(tx_free_stat.lo, "d");
4096
4097         DUMP_VAR(msg_free_stat.value, "d");
4098         DUMP_VAR(msg_free_stat.lo, "d");
4099
4100         DUMP_VAR(msg_pend_stat.value, "d");
4101         DUMP_VAR(msg_pend_stat.hi, "d");
4102
4103         DUMP_VAR(fw_pend_stat.value, "d");
4104         DUMP_VAR(fw_pend_stat.hi, "d");
4105
4106         DUMP_VAR(txq_stat.value, "d");
4107         DUMP_VAR(txq_stat.lo, "d");
4108
4109         DUMP_VAR(ieee->scans, "d");
4110         DUMP_VAR(reset_backoff, "d");
4111
4112         return len;
4113 }
4114
4115 static DEVICE_ATTR(internals, 0444, show_internals, NULL);
4116
4117 static ssize_t show_bssinfo(struct device *d, struct device_attribute *attr,
4118                             char *buf)
4119 {
4120         struct ipw2100_priv *priv = dev_get_drvdata(d);
4121         char essid[IW_ESSID_MAX_SIZE + 1];
4122         u8 bssid[ETH_ALEN];
4123         u32 chan = 0;
4124         char *out = buf;
4125         unsigned int length;
4126         int ret;
4127
4128         if (priv->status & STATUS_RF_KILL_MASK)
4129                 return 0;
4130
4131         memset(essid, 0, sizeof(essid));
4132         memset(bssid, 0, sizeof(bssid));
4133
4134         length = IW_ESSID_MAX_SIZE;
4135         ret = ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_SSID, essid, &length);
4136         if (ret)
4137                 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
4138                                __LINE__);
4139
4140         length = sizeof(bssid);
4141         ret = ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_AP_BSSID,
4142                                   bssid, &length);
4143         if (ret)
4144                 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
4145                                __LINE__);
4146
4147         length = sizeof(u32);
4148         ret = ipw2100_get_ordinal(priv, IPW_ORD_OUR_FREQ, &chan, &length);
4149         if (ret)
4150                 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
4151                                __LINE__);
4152
4153         out += sprintf(out, "ESSID: %s\n", essid);
4154         out += sprintf(out, "BSSID:   %pM\n", bssid);
4155         out += sprintf(out, "Channel: %d\n", chan);
4156
4157         return out - buf;
4158 }
4159
4160 static DEVICE_ATTR(bssinfo, 0444, show_bssinfo, NULL);
4161
4162 #ifdef CONFIG_IPW2100_DEBUG
4163 static ssize_t debug_level_show(struct device_driver *d, char *buf)
4164 {
4165         return sprintf(buf, "0x%08X\n", ipw2100_debug_level);
4166 }
4167
4168 static ssize_t debug_level_store(struct device_driver *d,
4169                                  const char *buf, size_t count)
4170 {
4171         u32 val;
4172         int ret;
4173
4174         ret = kstrtou32(buf, 0, &val);
4175         if (ret)
4176                 IPW_DEBUG_INFO(": %s is not in hex or decimal form.\n", buf);
4177         else
4178                 ipw2100_debug_level = val;
4179
4180         return strnlen(buf, count);
4181 }
4182 static DRIVER_ATTR_RW(debug_level);
4183 #endif                          /* CONFIG_IPW2100_DEBUG */
4184
4185 static ssize_t show_fatal_error(struct device *d,
4186                                 struct device_attribute *attr, char *buf)
4187 {
4188         struct ipw2100_priv *priv = dev_get_drvdata(d);
4189         char *out = buf;
4190         int i;
4191
4192         if (priv->fatal_error)
4193                 out += sprintf(out, "0x%08X\n", priv->fatal_error);
4194         else
4195                 out += sprintf(out, "0\n");
4196
4197         for (i = 1; i <= IPW2100_ERROR_QUEUE; i++) {
4198                 if (!priv->fatal_errors[(priv->fatal_index - i) %
4199                                         IPW2100_ERROR_QUEUE])
4200                         continue;
4201
4202                 out += sprintf(out, "%d. 0x%08X\n", i,
4203                                priv->fatal_errors[(priv->fatal_index - i) %
4204                                                   IPW2100_ERROR_QUEUE]);
4205         }
4206
4207         return out - buf;
4208 }
4209
4210 static ssize_t store_fatal_error(struct device *d,
4211                                  struct device_attribute *attr, const char *buf,
4212                                  size_t count)
4213 {
4214         struct ipw2100_priv *priv = dev_get_drvdata(d);
4215         schedule_reset(priv);
4216         return count;
4217 }
4218
4219 static DEVICE_ATTR(fatal_error, 0644, show_fatal_error, store_fatal_error);
4220
4221 static ssize_t show_scan_age(struct device *d, struct device_attribute *attr,
4222                              char *buf)
4223 {
4224         struct ipw2100_priv *priv = dev_get_drvdata(d);
4225         return sprintf(buf, "%d\n", priv->ieee->scan_age);
4226 }
4227
4228 static ssize_t store_scan_age(struct device *d, struct device_attribute *attr,
4229                               const char *buf, size_t count)
4230 {
4231         struct ipw2100_priv *priv = dev_get_drvdata(d);
4232         struct net_device *dev = priv->net_dev;
4233         unsigned long val;
4234         int ret;
4235
4236         (void)dev;              /* kill unused-var warning for debug-only code */
4237
4238         IPW_DEBUG_INFO("enter\n");
4239
4240         ret = kstrtoul(buf, 0, &val);
4241         if (ret) {
4242                 IPW_DEBUG_INFO("%s: user supplied invalid value.\n", dev->name);
4243         } else {
4244                 priv->ieee->scan_age = val;
4245                 IPW_DEBUG_INFO("set scan_age = %u\n", priv->ieee->scan_age);
4246         }
4247
4248         IPW_DEBUG_INFO("exit\n");
4249         return strnlen(buf, count);
4250 }
4251
4252 static DEVICE_ATTR(scan_age, 0644, show_scan_age, store_scan_age);
4253
4254 static ssize_t show_rf_kill(struct device *d, struct device_attribute *attr,
4255                             char *buf)
4256 {
4257         /* 0 - RF kill not enabled
4258            1 - SW based RF kill active (sysfs)
4259            2 - HW based RF kill active
4260            3 - Both HW and SW baed RF kill active */
4261         struct ipw2100_priv *priv = dev_get_drvdata(d);
4262         int val = ((priv->status & STATUS_RF_KILL_SW) ? 0x1 : 0x0) |
4263             (rf_kill_active(priv) ? 0x2 : 0x0);
4264         return sprintf(buf, "%i\n", val);
4265 }
4266
4267 static int ipw_radio_kill_sw(struct ipw2100_priv *priv, int disable_radio)
4268 {
4269         if ((disable_radio ? 1 : 0) ==
4270             (priv->status & STATUS_RF_KILL_SW ? 1 : 0))
4271                 return 0;
4272
4273         IPW_DEBUG_RF_KILL("Manual SW RF Kill set to: RADIO  %s\n",
4274                           disable_radio ? "OFF" : "ON");
4275
4276         mutex_lock(&priv->action_mutex);
4277
4278         if (disable_radio) {
4279                 priv->status |= STATUS_RF_KILL_SW;
4280                 ipw2100_down(priv);
4281         } else {
4282                 priv->status &= ~STATUS_RF_KILL_SW;
4283                 if (rf_kill_active(priv)) {
4284                         IPW_DEBUG_RF_KILL("Can not turn radio back on - "
4285                                           "disabled by HW switch\n");
4286                         /* Make sure the RF_KILL check timer is running */
4287                         priv->stop_rf_kill = 0;
4288                         mod_delayed_work(system_wq, &priv->rf_kill,
4289                                          round_jiffies_relative(HZ));
4290                 } else
4291                         schedule_reset(priv);
4292         }
4293
4294         mutex_unlock(&priv->action_mutex);
4295         return 1;
4296 }
4297
4298 static ssize_t store_rf_kill(struct device *d, struct device_attribute *attr,
4299                              const char *buf, size_t count)
4300 {
4301         struct ipw2100_priv *priv = dev_get_drvdata(d);
4302         ipw_radio_kill_sw(priv, buf[0] == '1');
4303         return count;
4304 }
4305
4306 static DEVICE_ATTR(rf_kill, 0644, show_rf_kill, store_rf_kill);
4307
4308 static struct attribute *ipw2100_sysfs_entries[] = {
4309         &dev_attr_hardware.attr,
4310         &dev_attr_registers.attr,
4311         &dev_attr_ordinals.attr,
4312         &dev_attr_pci.attr,
4313         &dev_attr_stats.attr,
4314         &dev_attr_internals.attr,
4315         &dev_attr_bssinfo.attr,
4316         &dev_attr_memory.attr,
4317         &dev_attr_scan_age.attr,
4318         &dev_attr_fatal_error.attr,
4319         &dev_attr_rf_kill.attr,
4320         &dev_attr_cfg.attr,
4321         &dev_attr_status.attr,
4322         &dev_attr_capability.attr,
4323         NULL,
4324 };
4325
4326 static const struct attribute_group ipw2100_attribute_group = {
4327         .attrs = ipw2100_sysfs_entries,
4328 };
4329
4330 static int status_queue_allocate(struct ipw2100_priv *priv, int entries)
4331 {
4332         struct ipw2100_status_queue *q = &priv->status_queue;
4333
4334         IPW_DEBUG_INFO("enter\n");
4335
4336         q->size = entries * sizeof(struct ipw2100_status);
4337         q->drv = pci_zalloc_consistent(priv->pci_dev, q->size, &q->nic);
4338         if (!q->drv) {
4339                 IPW_DEBUG_WARNING("Can not allocate status queue.\n");
4340                 return -ENOMEM;
4341         }
4342
4343         IPW_DEBUG_INFO("exit\n");
4344
4345         return 0;
4346 }
4347
4348 static void status_queue_free(struct ipw2100_priv *priv)
4349 {
4350         IPW_DEBUG_INFO("enter\n");
4351
4352         if (priv->status_queue.drv) {
4353                 pci_free_consistent(priv->pci_dev, priv->status_queue.size,
4354                                     priv->status_queue.drv,
4355                                     priv->status_queue.nic);
4356                 priv->status_queue.drv = NULL;
4357         }
4358
4359         IPW_DEBUG_INFO("exit\n");
4360 }
4361
4362 static int bd_queue_allocate(struct ipw2100_priv *priv,
4363                              struct ipw2100_bd_queue *q, int entries)
4364 {
4365         IPW_DEBUG_INFO("enter\n");
4366
4367         memset(q, 0, sizeof(struct ipw2100_bd_queue));
4368
4369         q->entries = entries;
4370         q->size = entries * sizeof(struct ipw2100_bd);
4371         q->drv = pci_zalloc_consistent(priv->pci_dev, q->size, &q->nic);
4372         if (!q->drv) {
4373                 IPW_DEBUG_INFO
4374                     ("can't allocate shared memory for buffer descriptors\n");
4375                 return -ENOMEM;
4376         }
4377
4378         IPW_DEBUG_INFO("exit\n");
4379
4380         return 0;
4381 }
4382
4383 static void bd_queue_free(struct ipw2100_priv *priv, struct ipw2100_bd_queue *q)
4384 {
4385         IPW_DEBUG_INFO("enter\n");
4386
4387         if (!q)
4388                 return;
4389
4390         if (q->drv) {
4391                 pci_free_consistent(priv->pci_dev, q->size, q->drv, q->nic);
4392                 q->drv = NULL;
4393         }
4394
4395         IPW_DEBUG_INFO("exit\n");
4396 }
4397
4398 static void bd_queue_initialize(struct ipw2100_priv *priv,
4399                                 struct ipw2100_bd_queue *q, u32 base, u32 size,
4400                                 u32 r, u32 w)
4401 {
4402         IPW_DEBUG_INFO("enter\n");
4403
4404         IPW_DEBUG_INFO("initializing bd queue at virt=%p, phys=%08x\n", q->drv,
4405                        (u32) q->nic);
4406
4407         write_register(priv->net_dev, base, q->nic);
4408         write_register(priv->net_dev, size, q->entries);
4409         write_register(priv->net_dev, r, q->oldest);
4410         write_register(priv->net_dev, w, q->next);
4411
4412         IPW_DEBUG_INFO("exit\n");
4413 }
4414
4415 static void ipw2100_kill_works(struct ipw2100_priv *priv)
4416 {
4417         priv->stop_rf_kill = 1;
4418         priv->stop_hang_check = 1;
4419         cancel_delayed_work_sync(&priv->reset_work);
4420         cancel_delayed_work_sync(&priv->security_work);
4421         cancel_delayed_work_sync(&priv->wx_event_work);
4422         cancel_delayed_work_sync(&priv->hang_check);
4423         cancel_delayed_work_sync(&priv->rf_kill);
4424         cancel_delayed_work_sync(&priv->scan_event);
4425 }
4426
4427 static int ipw2100_tx_allocate(struct ipw2100_priv *priv)
4428 {
4429         int i, j, err = -EINVAL;
4430         void *v;
4431         dma_addr_t p;
4432
4433         IPW_DEBUG_INFO("enter\n");
4434
4435         err = bd_queue_allocate(priv, &priv->tx_queue, TX_QUEUE_LENGTH);
4436         if (err) {
4437                 IPW_DEBUG_ERROR("%s: failed bd_queue_allocate\n",
4438                                 priv->net_dev->name);
4439                 return err;
4440         }
4441
4442         priv->tx_buffers = kmalloc_array(TX_PENDED_QUEUE_LENGTH,
4443                                          sizeof(struct ipw2100_tx_packet),
4444                                          GFP_ATOMIC);
4445         if (!priv->tx_buffers) {
4446                 bd_queue_free(priv, &priv->tx_queue);
4447                 return -ENOMEM;
4448         }
4449
4450         for (i = 0; i < TX_PENDED_QUEUE_LENGTH; i++) {
4451                 v = pci_alloc_consistent(priv->pci_dev,
4452                                          sizeof(struct ipw2100_data_header),
4453                                          &p);
4454                 if (!v) {
4455                         printk(KERN_ERR DRV_NAME
4456                                ": %s: PCI alloc failed for tx " "buffers.\n",
4457                                priv->net_dev->name);
4458                         err = -ENOMEM;
4459                         break;
4460                 }
4461
4462                 priv->tx_buffers[i].type = DATA;
4463                 priv->tx_buffers[i].info.d_struct.data =
4464                     (struct ipw2100_data_header *)v;
4465                 priv->tx_buffers[i].info.d_struct.data_phys = p;
4466                 priv->tx_buffers[i].info.d_struct.txb = NULL;
4467         }
4468
4469         if (i == TX_PENDED_QUEUE_LENGTH)
4470                 return 0;
4471
4472         for (j = 0; j < i; j++) {
4473                 pci_free_consistent(priv->pci_dev,
4474                                     sizeof(struct ipw2100_data_header),
4475                                     priv->tx_buffers[j].info.d_struct.data,
4476                                     priv->tx_buffers[j].info.d_struct.
4477                                     data_phys);
4478         }
4479
4480         kfree(priv->tx_buffers);
4481         priv->tx_buffers = NULL;
4482
4483         return err;
4484 }
4485
4486 static void ipw2100_tx_initialize(struct ipw2100_priv *priv)
4487 {
4488         int i;
4489
4490         IPW_DEBUG_INFO("enter\n");
4491
4492         /*
4493          * reinitialize packet info lists
4494          */
4495         INIT_LIST_HEAD(&priv->fw_pend_list);
4496         INIT_STAT(&priv->fw_pend_stat);
4497
4498         /*
4499          * reinitialize lists
4500          */
4501         INIT_LIST_HEAD(&priv->tx_pend_list);
4502         INIT_LIST_HEAD(&priv->tx_free_list);
4503         INIT_STAT(&priv->tx_pend_stat);
4504         INIT_STAT(&priv->tx_free_stat);
4505
4506         for (i = 0; i < TX_PENDED_QUEUE_LENGTH; i++) {
4507                 /* We simply drop any SKBs that have been queued for
4508                  * transmit */
4509                 if (priv->tx_buffers[i].info.d_struct.txb) {
4510                         libipw_txb_free(priv->tx_buffers[i].info.d_struct.
4511                                            txb);
4512                         priv->tx_buffers[i].info.d_struct.txb = NULL;
4513                 }
4514
4515                 list_add_tail(&priv->tx_buffers[i].list, &priv->tx_free_list);
4516         }
4517
4518         SET_STAT(&priv->tx_free_stat, i);
4519
4520         priv->tx_queue.oldest = 0;
4521         priv->tx_queue.available = priv->tx_queue.entries;
4522         priv->tx_queue.next = 0;
4523         INIT_STAT(&priv->txq_stat);
4524         SET_STAT(&priv->txq_stat, priv->tx_queue.available);
4525
4526         bd_queue_initialize(priv, &priv->tx_queue,
4527                             IPW_MEM_HOST_SHARED_TX_QUEUE_BD_BASE,
4528                             IPW_MEM_HOST_SHARED_TX_QUEUE_BD_SIZE,
4529                             IPW_MEM_HOST_SHARED_TX_QUEUE_READ_INDEX,
4530                             IPW_MEM_HOST_SHARED_TX_QUEUE_WRITE_INDEX);
4531
4532         IPW_DEBUG_INFO("exit\n");
4533
4534 }
4535
4536 static void ipw2100_tx_free(struct ipw2100_priv *priv)
4537 {
4538         int i;
4539
4540         IPW_DEBUG_INFO("enter\n");
4541
4542         bd_queue_free(priv, &priv->tx_queue);
4543
4544         if (!priv->tx_buffers)
4545                 return;
4546
4547         for (i = 0; i < TX_PENDED_QUEUE_LENGTH; i++) {
4548                 if (priv->tx_buffers[i].info.d_struct.txb) {
4549                         libipw_txb_free(priv->tx_buffers[i].info.d_struct.
4550                                            txb);
4551                         priv->tx_buffers[i].info.d_struct.txb = NULL;
4552                 }
4553                 if (priv->tx_buffers[i].info.d_struct.data)
4554                         pci_free_consistent(priv->pci_dev,
4555                                             sizeof(struct ipw2100_data_header),
4556                                             priv->tx_buffers[i].info.d_struct.
4557                                             data,
4558                                             priv->tx_buffers[i].info.d_struct.
4559                                             data_phys);
4560         }
4561
4562         kfree(priv->tx_buffers);
4563         priv->tx_buffers = NULL;
4564
4565         IPW_DEBUG_INFO("exit\n");
4566 }
4567
4568 static int ipw2100_rx_allocate(struct ipw2100_priv *priv)
4569 {
4570         int i, j, err = -EINVAL;
4571
4572         IPW_DEBUG_INFO("enter\n");
4573
4574         err = bd_queue_allocate(priv, &priv->rx_queue, RX_QUEUE_LENGTH);
4575         if (err) {
4576                 IPW_DEBUG_INFO("failed bd_queue_allocate\n");
4577                 return err;
4578         }
4579
4580         err = status_queue_allocate(priv, RX_QUEUE_LENGTH);
4581         if (err) {
4582                 IPW_DEBUG_INFO("failed status_queue_allocate\n");
4583                 bd_queue_free(priv, &priv->rx_queue);
4584                 return err;
4585         }
4586
4587         /*
4588          * allocate packets
4589          */
4590         priv->rx_buffers = kmalloc(RX_QUEUE_LENGTH *
4591                                    sizeof(struct ipw2100_rx_packet),
4592                                    GFP_KERNEL);
4593         if (!priv->rx_buffers) {
4594                 IPW_DEBUG_INFO("can't allocate rx packet buffer table\n");
4595
4596                 bd_queue_free(priv, &priv->rx_queue);
4597
4598                 status_queue_free(priv);
4599
4600                 return -ENOMEM;
4601         }
4602
4603         for (i = 0; i < RX_QUEUE_LENGTH; i++) {
4604                 struct ipw2100_rx_packet *packet = &priv->rx_buffers[i];
4605
4606                 err = ipw2100_alloc_skb(priv, packet);
4607                 if (unlikely(err)) {
4608                         err = -ENOMEM;
4609                         break;
4610                 }
4611
4612                 /* The BD holds the cache aligned address */
4613                 priv->rx_queue.drv[i].host_addr = packet->dma_addr;
4614                 priv->rx_queue.drv[i].buf_length = IPW_RX_NIC_BUFFER_LENGTH;
4615                 priv->status_queue.drv[i].status_fields = 0;
4616         }
4617
4618         if (i == RX_QUEUE_LENGTH)
4619                 return 0;
4620
4621         for (j = 0; j < i; j++) {
4622                 pci_unmap_single(priv->pci_dev, priv->rx_buffers[j].dma_addr,
4623                                  sizeof(struct ipw2100_rx_packet),
4624                                  PCI_DMA_FROMDEVICE);
4625                 dev_kfree_skb(priv->rx_buffers[j].skb);
4626         }
4627
4628         kfree(priv->rx_buffers);
4629         priv->rx_buffers = NULL;
4630
4631         bd_queue_free(priv, &priv->rx_queue);
4632
4633         status_queue_free(priv);
4634
4635         return err;
4636 }
4637
4638 static void ipw2100_rx_initialize(struct ipw2100_priv *priv)
4639 {
4640         IPW_DEBUG_INFO("enter\n");
4641
4642         priv->rx_queue.oldest = 0;
4643         priv->rx_queue.available = priv->rx_queue.entries - 1;
4644         priv->rx_queue.next = priv->rx_queue.entries - 1;
4645
4646         INIT_STAT(&priv->rxq_stat);
4647         SET_STAT(&priv->rxq_stat, priv->rx_queue.available);
4648
4649         bd_queue_initialize(priv, &priv->rx_queue,
4650                             IPW_MEM_HOST_SHARED_RX_BD_BASE,
4651                             IPW_MEM_HOST_SHARED_RX_BD_SIZE,
4652                             IPW_MEM_HOST_SHARED_RX_READ_INDEX,
4653                             IPW_MEM_HOST_SHARED_RX_WRITE_INDEX);
4654
4655         /* set up the status queue */
4656         write_register(priv->net_dev, IPW_MEM_HOST_SHARED_RX_STATUS_BASE,
4657                        priv->status_queue.nic);
4658
4659         IPW_DEBUG_INFO("exit\n");
4660 }
4661
4662 static void ipw2100_rx_free(struct ipw2100_priv *priv)
4663 {
4664         int i;
4665
4666         IPW_DEBUG_INFO("enter\n");
4667
4668         bd_queue_free(priv, &priv->rx_queue);
4669         status_queue_free(priv);
4670
4671         if (!priv->rx_buffers)
4672                 return;
4673
4674         for (i = 0; i < RX_QUEUE_LENGTH; i++) {
4675                 if (priv->rx_buffers[i].rxp) {
4676                         pci_unmap_single(priv->pci_dev,
4677                                          priv->rx_buffers[i].dma_addr,
4678                                          sizeof(struct ipw2100_rx),
4679                                          PCI_DMA_FROMDEVICE);
4680                         dev_kfree_skb(priv->rx_buffers[i].skb);
4681                 }
4682         }
4683
4684         kfree(priv->rx_buffers);
4685         priv->rx_buffers = NULL;
4686
4687         IPW_DEBUG_INFO("exit\n");
4688 }
4689
4690 static int ipw2100_read_mac_address(struct ipw2100_priv *priv)
4691 {
4692         u32 length = ETH_ALEN;
4693         u8 addr[ETH_ALEN];
4694
4695         int err;
4696
4697         err = ipw2100_get_ordinal(priv, IPW_ORD_STAT_ADAPTER_MAC, addr, &length);
4698         if (err) {
4699                 IPW_DEBUG_INFO("MAC address read failed\n");
4700                 return -EIO;
4701         }
4702
4703         memcpy(priv->net_dev->dev_addr, addr, ETH_ALEN);
4704         IPW_DEBUG_INFO("card MAC is %pM\n", priv->net_dev->dev_addr);
4705
4706         return 0;
4707 }
4708
4709 /********************************************************************
4710  *
4711  * Firmware Commands
4712  *
4713  ********************************************************************/
4714
4715 static int ipw2100_set_mac_address(struct ipw2100_priv *priv, int batch_mode)
4716 {
4717         struct host_command cmd = {
4718                 .host_command = ADAPTER_ADDRESS,
4719                 .host_command_sequence = 0,
4720                 .host_command_length = ETH_ALEN
4721         };
4722         int err;
4723
4724         IPW_DEBUG_HC("SET_MAC_ADDRESS\n");
4725
4726         IPW_DEBUG_INFO("enter\n");
4727
4728         if (priv->config & CFG_CUSTOM_MAC) {
4729                 memcpy(cmd.host_command_parameters, priv->mac_addr, ETH_ALEN);
4730                 memcpy(priv->net_dev->dev_addr, priv->mac_addr, ETH_ALEN);
4731         } else
4732                 memcpy(cmd.host_command_parameters, priv->net_dev->dev_addr,
4733                        ETH_ALEN);
4734
4735         err = ipw2100_hw_send_command(priv, &cmd);
4736
4737         IPW_DEBUG_INFO("exit\n");
4738         return err;
4739 }
4740
4741 static int ipw2100_set_port_type(struct ipw2100_priv *priv, u32 port_type,
4742                                  int batch_mode)
4743 {
4744         struct host_command cmd = {
4745                 .host_command = PORT_TYPE,
4746                 .host_command_sequence = 0,
4747                 .host_command_length = sizeof(u32)
4748         };
4749         int err;
4750
4751         switch (port_type) {
4752         case IW_MODE_INFRA:
4753                 cmd.host_command_parameters[0] = IPW_BSS;
4754                 break;
4755         case IW_MODE_ADHOC:
4756                 cmd.host_command_parameters[0] = IPW_IBSS;
4757                 break;
4758         }
4759
4760         IPW_DEBUG_HC("PORT_TYPE: %s\n",
4761                      port_type == IPW_IBSS ? "Ad-Hoc" : "Managed");
4762
4763         if (!batch_mode) {
4764                 err = ipw2100_disable_adapter(priv);
4765                 if (err) {
4766                         printk(KERN_ERR DRV_NAME
4767                                ": %s: Could not disable adapter %d\n",
4768                                priv->net_dev->name, err);
4769                         return err;
4770                 }
4771         }
4772
4773         /* send cmd to firmware */
4774         err = ipw2100_hw_send_command(priv, &cmd);
4775
4776         if (!batch_mode)
4777                 ipw2100_enable_adapter(priv);
4778
4779         return err;
4780 }
4781
4782 static int ipw2100_set_channel(struct ipw2100_priv *priv, u32 channel,
4783                                int batch_mode)
4784 {
4785         struct host_command cmd = {
4786                 .host_command = CHANNEL,
4787                 .host_command_sequence = 0,
4788                 .host_command_length = sizeof(u32)
4789         };
4790         int err;
4791
4792         cmd.host_command_parameters[0] = channel;
4793
4794         IPW_DEBUG_HC("CHANNEL: %d\n", channel);
4795
4796         /* If BSS then we don't support channel selection */
4797         if (priv->ieee->iw_mode == IW_MODE_INFRA)
4798                 return 0;
4799
4800         if ((channel != 0) &&
4801             ((channel < REG_MIN_CHANNEL) || (channel > REG_MAX_CHANNEL)))
4802                 return -EINVAL;
4803
4804         if (!batch_mode) {
4805                 err = ipw2100_disable_adapter(priv);
4806                 if (err)
4807                         return err;
4808         }
4809
4810         err = ipw2100_hw_send_command(priv, &cmd);
4811         if (err) {
4812                 IPW_DEBUG_INFO("Failed to set channel to %d", channel);
4813                 return err;
4814         }
4815
4816         if (channel)
4817                 priv->config |= CFG_STATIC_CHANNEL;
4818         else
4819                 priv->config &= ~CFG_STATIC_CHANNEL;
4820
4821         priv->channel = channel;
4822
4823         if (!batch_mode) {
4824                 err = ipw2100_enable_adapter(priv);
4825                 if (err)
4826                         return err;
4827         }
4828
4829         return 0;
4830 }
4831
4832 static int ipw2100_system_config(struct ipw2100_priv *priv, int batch_mode)
4833 {
4834         struct host_command cmd = {
4835                 .host_command = SYSTEM_CONFIG,
4836                 .host_command_sequence = 0,
4837                 .host_command_length = 12,
4838         };
4839         u32 ibss_mask, len = sizeof(u32);
4840         int err;
4841
4842         /* Set system configuration */
4843
4844         if (!batch_mode) {
4845                 err = ipw2100_disable_adapter(priv);
4846                 if (err)
4847                         return err;
4848         }
4849
4850         if (priv->ieee->iw_mode == IW_MODE_ADHOC)
4851                 cmd.host_command_parameters[0] |= IPW_CFG_IBSS_AUTO_START;
4852
4853         cmd.host_command_parameters[0] |= IPW_CFG_IBSS_MASK |
4854             IPW_CFG_BSS_MASK | IPW_CFG_802_1x_ENABLE;
4855
4856         if (!(priv->config & CFG_LONG_PREAMBLE))
4857                 cmd.host_command_parameters[0] |= IPW_CFG_PREAMBLE_AUTO;
4858
4859         err = ipw2100_get_ordinal(priv,
4860                                   IPW_ORD_EEPROM_IBSS_11B_CHANNELS,
4861                                   &ibss_mask, &len);
4862         if (err)
4863                 ibss_mask = IPW_IBSS_11B_DEFAULT_MASK;
4864
4865         cmd.host_command_parameters[1] = REG_CHANNEL_MASK;
4866         cmd.host_command_parameters[2] = REG_CHANNEL_MASK & ibss_mask;
4867
4868         /* 11b only */
4869         /*cmd.host_command_parameters[0] |= DIVERSITY_ANTENNA_A; */
4870
4871         err = ipw2100_hw_send_command(priv, &cmd);
4872         if (err)
4873                 return err;
4874
4875 /* If IPv6 is configured in the kernel then we don't want to filter out all
4876  * of the multicast packets as IPv6 needs some. */
4877 #if !defined(CONFIG_IPV6) && !defined(CONFIG_IPV6_MODULE)
4878         cmd.host_command = ADD_MULTICAST;
4879         cmd.host_command_sequence = 0;
4880         cmd.host_command_length = 0;
4881
4882         ipw2100_hw_send_command(priv, &cmd);
4883 #endif
4884         if (!batch_mode) {
4885                 err = ipw2100_enable_adapter(priv);
4886                 if (err)
4887                         return err;
4888         }
4889
4890         return 0;
4891 }
4892
4893 static int ipw2100_set_tx_rates(struct ipw2100_priv *priv, u32 rate,
4894                                 int batch_mode)
4895 {
4896         struct host_command cmd = {
4897                 .host_command = BASIC_TX_RATES,
4898                 .host_command_sequence = 0,
4899                 .host_command_length = 4
4900         };
4901         int err;
4902
4903         cmd.host_command_parameters[0] = rate & TX_RATE_MASK;
4904
4905         if (!batch_mode) {
4906                 err = ipw2100_disable_adapter(priv);
4907                 if (err)
4908                         return err;
4909         }
4910
4911         /* Set BASIC TX Rate first */
4912         ipw2100_hw_send_command(priv, &cmd);
4913
4914         /* Set TX Rate */
4915         cmd.host_command = TX_RATES;
4916         ipw2100_hw_send_command(priv, &cmd);
4917
4918         /* Set MSDU TX Rate */
4919         cmd.host_command = MSDU_TX_RATES;
4920         ipw2100_hw_send_command(priv, &cmd);
4921
4922         if (!batch_mode) {
4923                 err = ipw2100_enable_adapter(priv);
4924                 if (err)
4925                         return err;
4926         }
4927
4928         priv->tx_rates = rate;
4929
4930         return 0;
4931 }
4932
4933 static int ipw2100_set_power_mode(struct ipw2100_priv *priv, int power_level)
4934 {
4935         struct host_command cmd = {
4936                 .host_command = POWER_MODE,
4937                 .host_command_sequence = 0,
4938                 .host_command_length = 4
4939         };
4940         int err;
4941
4942         cmd.host_command_parameters[0] = power_level;
4943
4944         err = ipw2100_hw_send_command(priv, &cmd);
4945         if (err)
4946                 return err;
4947
4948         if (power_level == IPW_POWER_MODE_CAM)
4949                 priv->power_mode = IPW_POWER_LEVEL(priv->power_mode);
4950         else
4951                 priv->power_mode = IPW_POWER_ENABLED | power_level;
4952
4953 #ifdef IPW2100_TX_POWER
4954         if (priv->port_type == IBSS && priv->adhoc_power != DFTL_IBSS_TX_POWER) {
4955                 /* Set beacon interval */
4956                 cmd.host_command = TX_POWER_INDEX;
4957                 cmd.host_command_parameters[0] = (u32) priv->adhoc_power;
4958
4959                 err = ipw2100_hw_send_command(priv, &cmd);
4960                 if (err)
4961                         return err;
4962         }
4963 #endif
4964
4965         return 0;
4966 }
4967
4968 static int ipw2100_set_rts_threshold(struct ipw2100_priv *priv, u32 threshold)
4969 {
4970         struct host_command cmd = {
4971                 .host_command = RTS_THRESHOLD,
4972                 .host_command_sequence = 0,
4973                 .host_command_length = 4
4974         };
4975         int err;
4976
4977         if (threshold & RTS_DISABLED)
4978                 cmd.host_command_parameters[0] = MAX_RTS_THRESHOLD;
4979         else
4980                 cmd.host_command_parameters[0] = threshold & ~RTS_DISABLED;
4981
4982         err = ipw2100_hw_send_command(priv, &cmd);
4983         if (err)
4984                 return err;
4985
4986         priv->rts_threshold = threshold;
4987
4988         return 0;
4989 }
4990
4991 #if 0
4992 int ipw2100_set_fragmentation_threshold(struct ipw2100_priv *priv,
4993                                         u32 threshold, int batch_mode)
4994 {
4995         struct host_command cmd = {
4996                 .host_command = FRAG_THRESHOLD,
4997                 .host_command_sequence = 0,
4998                 .host_command_length = 4,
4999                 .host_command_parameters[0] = 0,
5000         };
5001         int err;
5002
5003         if (!batch_mode) {
5004                 err = ipw2100_disable_adapter(priv);
5005                 if (err)
5006                         return err;
5007         }
5008
5009         if (threshold == 0)
5010                 threshold = DEFAULT_FRAG_THRESHOLD;
5011         else {
5012                 threshold = max(threshold, MIN_FRAG_THRESHOLD);
5013                 threshold = min(threshold, MAX_FRAG_THRESHOLD);
5014         }
5015
5016         cmd.host_command_parameters[0] = threshold;
5017
5018         IPW_DEBUG_HC("FRAG_THRESHOLD: %u\n", threshold);
5019
5020         err = ipw2100_hw_send_command(priv, &cmd);
5021
5022         if (!batch_mode)
5023                 ipw2100_enable_adapter(priv);
5024
5025         if (!err)
5026                 priv->frag_threshold = threshold;
5027
5028         return err;
5029 }
5030 #endif
5031
5032 static int ipw2100_set_short_retry(struct ipw2100_priv *priv, u32 retry)
5033 {
5034         struct host_command cmd = {
5035                 .host_command = SHORT_RETRY_LIMIT,
5036                 .host_command_sequence = 0,
5037                 .host_command_length = 4
5038         };
5039         int err;
5040
5041         cmd.host_command_parameters[0] = retry;
5042
5043         err = ipw2100_hw_send_command(priv, &cmd);
5044         if (err)
5045                 return err;
5046
5047         priv->short_retry_limit = retry;
5048
5049         return 0;
5050 }
5051
5052 static int ipw2100_set_long_retry(struct ipw2100_priv *priv, u32 retry)
5053 {
5054         struct host_command cmd = {
5055                 .host_command = LONG_RETRY_LIMIT,
5056                 .host_command_sequence = 0,
5057                 .host_command_length = 4
5058         };
5059         int err;
5060
5061         cmd.host_command_parameters[0] = retry;
5062
5063         err = ipw2100_hw_send_command(priv, &cmd);
5064         if (err)
5065                 return err;
5066
5067         priv->long_retry_limit = retry;
5068
5069         return 0;
5070 }
5071
5072 static int ipw2100_set_mandatory_bssid(struct ipw2100_priv *priv, u8 * bssid,
5073                                        int batch_mode)
5074 {
5075         struct host_command cmd = {
5076                 .host_command = MANDATORY_BSSID,
5077                 .host_command_sequence = 0,
5078                 .host_command_length = (bssid == NULL) ? 0 : ETH_ALEN
5079         };
5080         int err;
5081
5082 #ifdef CONFIG_IPW2100_DEBUG
5083         if (bssid != NULL)
5084                 IPW_DEBUG_HC("MANDATORY_BSSID: %pM\n", bssid);
5085         else
5086                 IPW_DEBUG_HC("MANDATORY_BSSID: <clear>\n");
5087 #endif
5088         /* if BSSID is empty then we disable mandatory bssid mode */
5089         if (bssid != NULL)
5090                 memcpy(cmd.host_command_parameters, bssid, ETH_ALEN);
5091
5092         if (!batch_mode) {
5093                 err = ipw2100_disable_adapter(priv);
5094                 if (err)
5095                         return err;
5096         }
5097
5098         err = ipw2100_hw_send_command(priv, &cmd);
5099
5100         if (!batch_mode)
5101                 ipw2100_enable_adapter(priv);
5102
5103         return err;
5104 }
5105
5106 static int ipw2100_disassociate_bssid(struct ipw2100_priv *priv)
5107 {
5108         struct host_command cmd = {
5109                 .host_command = DISASSOCIATION_BSSID,
5110                 .host_command_sequence = 0,
5111                 .host_command_length = ETH_ALEN
5112         };
5113         int err;
5114         int len;
5115
5116         IPW_DEBUG_HC("DISASSOCIATION_BSSID\n");
5117
5118         len = ETH_ALEN;
5119         /* The Firmware currently ignores the BSSID and just disassociates from
5120          * the currently associated AP -- but in the off chance that a future
5121          * firmware does use the BSSID provided here, we go ahead and try and
5122          * set it to the currently associated AP's BSSID */
5123         memcpy(cmd.host_command_parameters, priv->bssid, ETH_ALEN);
5124
5125         err = ipw2100_hw_send_command(priv, &cmd);
5126
5127         return err;
5128 }
5129
5130 static int ipw2100_set_wpa_ie(struct ipw2100_priv *,
5131                               struct ipw2100_wpa_assoc_frame *, int)
5132     __attribute__ ((unused));
5133
5134 static int ipw2100_set_wpa_ie(struct ipw2100_priv *priv,
5135                               struct ipw2100_wpa_assoc_frame *wpa_frame,
5136                               int batch_mode)
5137 {
5138         struct host_command cmd = {
5139                 .host_command = SET_WPA_IE,
5140                 .host_command_sequence = 0,
5141                 .host_command_length = sizeof(struct ipw2100_wpa_assoc_frame),
5142         };
5143         int err;
5144
5145         IPW_DEBUG_HC("SET_WPA_IE\n");
5146
5147         if (!batch_mode) {
5148                 err = ipw2100_disable_adapter(priv);
5149                 if (err)
5150                         return err;
5151         }
5152
5153         memcpy(cmd.host_command_parameters, wpa_frame,
5154                sizeof(struct ipw2100_wpa_assoc_frame));
5155
5156         err = ipw2100_hw_send_command(priv, &cmd);
5157
5158         if (!batch_mode) {
5159                 if (ipw2100_enable_adapter(priv))
5160                         err = -EIO;
5161         }
5162
5163         return err;
5164 }
5165
5166 struct security_info_params {
5167         u32 allowed_ciphers;
5168         u16 version;
5169         u8 auth_mode;
5170         u8 replay_counters_number;
5171         u8 unicast_using_group;
5172 } __packed;
5173
5174 static int ipw2100_set_security_information(struct ipw2100_priv *priv,
5175                                             int auth_mode,
5176                                             int security_level,
5177                                             int unicast_using_group,
5178                                             int batch_mode)
5179 {
5180         struct host_command cmd = {
5181                 .host_command = SET_SECURITY_INFORMATION,
5182                 .host_command_sequence = 0,
5183                 .host_command_length = sizeof(struct security_info_params)
5184         };
5185         struct security_info_params *security =
5186             (struct security_info_params *)&cmd.host_command_parameters;
5187         int err;
5188         memset(security, 0, sizeof(*security));
5189
5190         /* If shared key AP authentication is turned on, then we need to
5191          * configure the firmware to try and use it.
5192          *
5193          * Actual data encryption/decryption is handled by the host. */
5194         security->auth_mode = auth_mode;
5195         security->unicast_using_group = unicast_using_group;
5196
5197         switch (security_level) {
5198         default:
5199         case SEC_LEVEL_0:
5200                 security->allowed_ciphers = IPW_NONE_CIPHER;
5201                 break;
5202         case SEC_LEVEL_1:
5203                 security->allowed_ciphers = IPW_WEP40_CIPHER |
5204                     IPW_WEP104_CIPHER;
5205                 break;
5206         case SEC_LEVEL_2:
5207                 security->allowed_ciphers = IPW_WEP40_CIPHER |
5208                     IPW_WEP104_CIPHER | IPW_TKIP_CIPHER;
5209                 break;
5210         case SEC_LEVEL_2_CKIP:
5211                 security->allowed_ciphers = IPW_WEP40_CIPHER |
5212                     IPW_WEP104_CIPHER | IPW_CKIP_CIPHER;
5213                 break;
5214         case SEC_LEVEL_3:
5215                 security->allowed_ciphers = IPW_WEP40_CIPHER |
5216                     IPW_WEP104_CIPHER | IPW_TKIP_CIPHER | IPW_CCMP_CIPHER;
5217                 break;
5218         }
5219
5220         IPW_DEBUG_HC
5221             ("SET_SECURITY_INFORMATION: auth:%d cipher:0x%02X (level %d)\n",
5222              security->auth_mode, security->allowed_ciphers, security_level);
5223
5224         security->replay_counters_number = 0;
5225
5226         if (!batch_mode) {
5227                 err = ipw2100_disable_adapter(priv);
5228                 if (err)
5229                         return err;
5230         }
5231
5232         err = ipw2100_hw_send_command(priv, &cmd);
5233
5234         if (!batch_mode)
5235                 ipw2100_enable_adapter(priv);
5236
5237         return err;
5238 }
5239
5240 static int ipw2100_set_tx_power(struct ipw2100_priv *priv, u32 tx_power)
5241 {
5242         struct host_command cmd = {
5243                 .host_command = TX_POWER_INDEX,
5244                 .host_command_sequence = 0,
5245                 .host_command_length = 4
5246         };
5247         int err = 0;
5248         u32 tmp = tx_power;
5249
5250         if (tx_power != IPW_TX_POWER_DEFAULT)
5251                 tmp = (tx_power - IPW_TX_POWER_MIN_DBM) * 16 /
5252                       (IPW_TX_POWER_MAX_DBM - IPW_TX_POWER_MIN_DBM);
5253
5254         cmd.host_command_parameters[0] = tmp;
5255
5256         if (priv->ieee->iw_mode == IW_MODE_ADHOC)
5257                 err = ipw2100_hw_send_command(priv, &cmd);
5258         if (!err)
5259                 priv->tx_power = tx_power;
5260
5261         return 0;
5262 }
5263
5264 static int ipw2100_set_ibss_beacon_interval(struct ipw2100_priv *priv,
5265                                             u32 interval, int batch_mode)
5266 {
5267         struct host_command cmd = {
5268                 .host_command = BEACON_INTERVAL,
5269                 .host_command_sequence = 0,
5270                 .host_command_length = 4
5271         };
5272         int err;
5273
5274         cmd.host_command_parameters[0] = interval;
5275
5276         IPW_DEBUG_INFO("enter\n");
5277
5278         if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
5279                 if (!batch_mode) {
5280                         err = ipw2100_disable_adapter(priv);
5281                         if (err)
5282                                 return err;
5283                 }
5284
5285                 ipw2100_hw_send_command(priv, &cmd);
5286
5287                 if (!batch_mode) {
5288                         err = ipw2100_enable_adapter(priv);
5289                         if (err)
5290                                 return err;
5291                 }
5292         }
5293
5294         IPW_DEBUG_INFO("exit\n");
5295
5296         return 0;
5297 }
5298
5299 static void ipw2100_queues_initialize(struct ipw2100_priv *priv)
5300 {
5301         ipw2100_tx_initialize(priv);
5302         ipw2100_rx_initialize(priv);
5303         ipw2100_msg_initialize(priv);
5304 }
5305
5306 static void ipw2100_queues_free(struct ipw2100_priv *priv)
5307 {
5308         ipw2100_tx_free(priv);
5309         ipw2100_rx_free(priv);
5310         ipw2100_msg_free(priv);
5311 }
5312
5313 static int ipw2100_queues_allocate(struct ipw2100_priv *priv)
5314 {
5315         if (ipw2100_tx_allocate(priv) ||
5316             ipw2100_rx_allocate(priv) || ipw2100_msg_allocate(priv))
5317                 goto fail;
5318
5319         return 0;
5320
5321       fail:
5322         ipw2100_tx_free(priv);
5323         ipw2100_rx_free(priv);
5324         ipw2100_msg_free(priv);
5325         return -ENOMEM;
5326 }
5327
5328 #define IPW_PRIVACY_CAPABLE 0x0008
5329
5330 static int ipw2100_set_wep_flags(struct ipw2100_priv *priv, u32 flags,
5331                                  int batch_mode)
5332 {
5333         struct host_command cmd = {
5334                 .host_command = WEP_FLAGS,
5335                 .host_command_sequence = 0,
5336                 .host_command_length = 4
5337         };
5338         int err;
5339
5340         cmd.host_command_parameters[0] = flags;
5341
5342         IPW_DEBUG_HC("WEP_FLAGS: flags = 0x%08X\n", flags);
5343
5344         if (!batch_mode) {
5345                 err = ipw2100_disable_adapter(priv);
5346                 if (err) {
5347                         printk(KERN_ERR DRV_NAME
5348                                ": %s: Could not disable adapter %d\n",
5349                                priv->net_dev->name, err);
5350                         return err;
5351                 }
5352         }
5353
5354         /* send cmd to firmware */
5355         err = ipw2100_hw_send_command(priv, &cmd);
5356
5357         if (!batch_mode)
5358                 ipw2100_enable_adapter(priv);
5359
5360         return err;
5361 }
5362
5363 struct ipw2100_wep_key {
5364         u8 idx;
5365         u8 len;
5366         u8 key[13];
5367 };
5368
5369 /* Macros to ease up priting WEP keys */
5370 #define WEP_FMT_64  "%02X%02X%02X%02X-%02X"
5371 #define WEP_FMT_128 "%02X%02X%02X%02X-%02X%02X%02X%02X-%02X%02X%02X"
5372 #define WEP_STR_64(x) x[0],x[1],x[2],x[3],x[4]
5373 #define WEP_STR_128(x) x[0],x[1],x[2],x[3],x[4],x[5],x[6],x[7],x[8],x[9],x[10]
5374
5375 /**
5376  * Set a the wep key
5377  *
5378  * @priv: struct to work on
5379  * @idx: index of the key we want to set
5380  * @key: ptr to the key data to set
5381  * @len: length of the buffer at @key
5382  * @batch_mode: FIXME perform the operation in batch mode, not
5383  *              disabling the device.
5384  *
5385  * @returns 0 if OK, < 0 errno code on error.
5386  *
5387  * Fill out a command structure with the new wep key, length an
5388  * index and send it down the wire.
5389  */
5390 static int ipw2100_set_key(struct ipw2100_priv *priv,
5391                            int idx, char *key, int len, int batch_mode)
5392 {
5393         int keylen = len ? (len <= 5 ? 5 : 13) : 0;
5394         struct host_command cmd = {
5395                 .host_command = WEP_KEY_INFO,
5396                 .host_command_sequence = 0,
5397                 .host_command_length = sizeof(struct ipw2100_wep_key),
5398         };
5399         struct ipw2100_wep_key *wep_key = (void *)cmd.host_command_parameters;
5400         int err;
5401
5402         IPW_DEBUG_HC("WEP_KEY_INFO: index = %d, len = %d/%d\n",
5403                      idx, keylen, len);
5404
5405         /* NOTE: We don't check cached values in case the firmware was reset
5406          * or some other problem is occurring.  If the user is setting the key,
5407          * then we push the change */
5408
5409         wep_key->idx = idx;
5410         wep_key->len = keylen;
5411
5412         if (keylen) {
5413                 memcpy(wep_key->key, key, len);
5414                 memset(wep_key->key + len, 0, keylen - len);
5415         }
5416
5417         /* Will be optimized out on debug not being configured in */
5418         if (keylen == 0)
5419                 IPW_DEBUG_WEP("%s: Clearing key %d\n",
5420                               priv->net_dev->name, wep_key->idx);
5421         else if (keylen == 5)
5422                 IPW_DEBUG_WEP("%s: idx: %d, len: %d key: " WEP_FMT_64 "\n",
5423                               priv->net_dev->name, wep_key->idx, wep_key->len,
5424                               WEP_STR_64(wep_key->key));
5425         else
5426                 IPW_DEBUG_WEP("%s: idx: %d, len: %d key: " WEP_FMT_128
5427                               "\n",
5428                               priv->net_dev->name, wep_key->idx, wep_key->len,
5429                               WEP_STR_128(wep_key->key));
5430
5431         if (!batch_mode) {
5432                 err = ipw2100_disable_adapter(priv);
5433                 /* FIXME: IPG: shouldn't this prink be in _disable_adapter()? */
5434                 if (err) {
5435                         printk(KERN_ERR DRV_NAME
5436                                ": %s: Could not disable adapter %d\n",
5437                                priv->net_dev->name, err);
5438                         return err;
5439                 }
5440         }
5441
5442         /* send cmd to firmware */
5443         err = ipw2100_hw_send_command(priv, &cmd);
5444
5445         if (!batch_mode) {
5446                 int err2 = ipw2100_enable_adapter(priv);
5447                 if (err == 0)
5448                         err = err2;
5449         }
5450         return err;
5451 }
5452
5453 static int ipw2100_set_key_index(struct ipw2100_priv *priv,
5454                                  int idx, int batch_mode)
5455 {
5456         struct host_command cmd = {
5457                 .host_command = WEP_KEY_INDEX,
5458                 .host_command_sequence = 0,
5459                 .host_command_length = 4,
5460                 .host_command_parameters = {idx},
5461         };
5462         int err;
5463
5464         IPW_DEBUG_HC("WEP_KEY_INDEX: index = %d\n", idx);
5465
5466         if (idx < 0 || idx > 3)
5467                 return -EINVAL;
5468
5469         if (!batch_mode) {
5470                 err = ipw2100_disable_adapter(priv);
5471                 if (err) {
5472                         printk(KERN_ERR DRV_NAME
5473                                ": %s: Could not disable adapter %d\n",
5474                                priv->net_dev->name, err);
5475                         return err;
5476                 }
5477         }
5478
5479         /* send cmd to firmware */
5480         err = ipw2100_hw_send_command(priv, &cmd);
5481
5482         if (!batch_mode)
5483                 ipw2100_enable_adapter(priv);
5484
5485         return err;
5486 }
5487
5488 static int ipw2100_configure_security(struct ipw2100_priv *priv, int batch_mode)
5489 {
5490         int i, err, auth_mode, sec_level, use_group;
5491
5492         if (!(priv->status & STATUS_RUNNING))
5493                 return 0;
5494
5495         if (!batch_mode) {
5496                 err = ipw2100_disable_adapter(priv);
5497                 if (err)
5498                         return err;
5499         }
5500
5501         if (!priv->ieee->sec.enabled) {
5502                 err =
5503                     ipw2100_set_security_information(priv, IPW_AUTH_OPEN,
5504                                                      SEC_LEVEL_0, 0, 1);
5505         } else {
5506                 auth_mode = IPW_AUTH_OPEN;
5507                 if (priv->ieee->sec.flags & SEC_AUTH_MODE) {
5508                         if (priv->ieee->sec.auth_mode == WLAN_AUTH_SHARED_KEY)
5509                                 auth_mode = IPW_AUTH_SHARED;
5510                         else if (priv->ieee->sec.auth_mode == WLAN_AUTH_LEAP)
5511                                 auth_mode = IPW_AUTH_LEAP_CISCO_ID;
5512                 }
5513
5514                 sec_level = SEC_LEVEL_0;
5515                 if (priv->ieee->sec.flags & SEC_LEVEL)
5516                         sec_level = priv->ieee->sec.level;
5517
5518                 use_group = 0;
5519                 if (priv->ieee->sec.flags & SEC_UNICAST_GROUP)
5520                         use_group = priv->ieee->sec.unicast_uses_group;
5521
5522                 err =
5523                     ipw2100_set_security_information(priv, auth_mode, sec_level,
5524                                                      use_group, 1);
5525         }
5526
5527         if (err)
5528                 goto exit;
5529
5530         if (priv->ieee->sec.enabled) {
5531                 for (i = 0; i < 4; i++) {
5532                         if (!(priv->ieee->sec.flags & (1 << i))) {
5533                                 memset(priv->ieee->sec.keys[i], 0, WEP_KEY_LEN);
5534                                 priv->ieee->sec.key_sizes[i] = 0;
5535                         } else {
5536                                 err = ipw2100_set_key(priv, i,
5537                                                       priv->ieee->sec.keys[i],
5538                                                       priv->ieee->sec.
5539                                                       key_sizes[i], 1);
5540                                 if (err)
5541                                         goto exit;
5542                         }
5543                 }
5544
5545                 ipw2100_set_key_index(priv, priv->ieee->crypt_info.tx_keyidx, 1);
5546         }
5547
5548         /* Always enable privacy so the Host can filter WEP packets if
5549          * encrypted data is sent up */
5550         err =
5551             ipw2100_set_wep_flags(priv,
5552                                   priv->ieee->sec.
5553                                   enabled ? IPW_PRIVACY_CAPABLE : 0, 1);
5554         if (err)
5555                 goto exit;
5556
5557         priv->status &= ~STATUS_SECURITY_UPDATED;
5558
5559       exit:
5560         if (!batch_mode)
5561                 ipw2100_enable_adapter(priv);
5562
5563         return err;
5564 }
5565
5566 static void ipw2100_security_work(struct work_struct *work)
5567 {
5568         struct ipw2100_priv *priv =
5569                 container_of(work, struct ipw2100_priv, security_work.work);
5570
5571         /* If we happen to have reconnected before we get a chance to
5572          * process this, then update the security settings--which causes
5573          * a disassociation to occur */
5574         if (!(priv->status & STATUS_ASSOCIATED) &&
5575             priv->status & STATUS_SECURITY_UPDATED)
5576                 ipw2100_configure_security(priv, 0);
5577 }
5578
5579 static void shim__set_security(struct net_device *dev,
5580                                struct libipw_security *sec)
5581 {
5582         struct ipw2100_priv *priv = libipw_priv(dev);
5583         int i, force_update = 0;
5584
5585         mutex_lock(&priv->action_mutex);
5586         if (!(priv->status & STATUS_INITIALIZED))
5587                 goto done;
5588
5589         for (i = 0; i < 4; i++) {
5590                 if (sec->flags & (1 << i)) {
5591                         priv->ieee->sec.key_sizes[i] = sec->key_sizes[i];
5592                         if (sec->key_sizes[i] == 0)
5593                                 priv->ieee->sec.flags &= ~(1 << i);
5594                         else
5595                                 memcpy(priv->ieee->sec.keys[i], sec->keys[i],
5596                                        sec->key_sizes[i]);
5597                         if (sec->level == SEC_LEVEL_1) {
5598                                 priv->ieee->sec.flags |= (1 << i);
5599                                 priv->status |= STATUS_SECURITY_UPDATED;
5600                         } else
5601                                 priv->ieee->sec.flags &= ~(1 << i);
5602                 }
5603         }
5604
5605         if ((sec->flags & SEC_ACTIVE_KEY) &&
5606             priv->ieee->sec.active_key != sec->active_key) {
5607                 if (sec->active_key <= 3) {
5608                         priv->ieee->sec.active_key = sec->active_key;
5609                         priv->ieee->sec.flags |= SEC_ACTIVE_KEY;
5610                 } else
5611                         priv->ieee->sec.flags &= ~SEC_ACTIVE_KEY;
5612
5613                 priv->status |= STATUS_SECURITY_UPDATED;
5614         }
5615
5616         if ((sec->flags & SEC_AUTH_MODE) &&
5617             (priv->ieee->sec.auth_mode != sec->auth_mode)) {
5618                 priv->ieee->sec.auth_mode = sec->auth_mode;
5619                 priv->ieee->sec.flags |= SEC_AUTH_MODE;
5620                 priv->status |= STATUS_SECURITY_UPDATED;
5621         }
5622
5623         if (sec->flags & SEC_ENABLED && priv->ieee->sec.enabled != sec->enabled) {
5624                 priv->ieee->sec.flags |= SEC_ENABLED;
5625                 priv->ieee->sec.enabled = sec->enabled;
5626                 priv->status |= STATUS_SECURITY_UPDATED;
5627                 force_update = 1;
5628         }
5629
5630         if (sec->flags & SEC_ENCRYPT)
5631                 priv->ieee->sec.encrypt = sec->encrypt;
5632
5633         if (sec->flags & SEC_LEVEL && priv->ieee->sec.level != sec->level) {
5634                 priv->ieee->sec.level = sec->level;
5635                 priv->ieee->sec.flags |= SEC_LEVEL;
5636                 priv->status |= STATUS_SECURITY_UPDATED;
5637         }
5638
5639         IPW_DEBUG_WEP("Security flags: %c %c%c%c%c %c%c%c%c\n",
5640                       priv->ieee->sec.flags & (1 << 8) ? '1' : '0',
5641                       priv->ieee->sec.flags & (1 << 7) ? '1' : '0',
5642                       priv->ieee->sec.flags & (1 << 6) ? '1' : '0',
5643                       priv->ieee->sec.flags & (1 << 5) ? '1' : '0',
5644                       priv->ieee->sec.flags & (1 << 4) ? '1' : '0',
5645                       priv->ieee->sec.flags & (1 << 3) ? '1' : '0',
5646                       priv->ieee->sec.flags & (1 << 2) ? '1' : '0',
5647                       priv->ieee->sec.flags & (1 << 1) ? '1' : '0',
5648                       priv->ieee->sec.flags & (1 << 0) ? '1' : '0');
5649
5650 /* As a temporary work around to enable WPA until we figure out why
5651  * wpa_supplicant toggles the security capability of the driver, which
5652  * forces a disassociation with force_update...
5653  *
5654  *      if (force_update || !(priv->status & STATUS_ASSOCIATED))*/
5655         if (!(priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)))
5656                 ipw2100_configure_security(priv, 0);
5657       done:
5658         mutex_unlock(&priv->action_mutex);
5659 }
5660
5661 static int ipw2100_adapter_setup(struct ipw2100_priv *priv)
5662 {
5663         int err;
5664         int batch_mode = 1;
5665         u8 *bssid;
5666
5667         IPW_DEBUG_INFO("enter\n");
5668
5669         err = ipw2100_disable_adapter(priv);
5670         if (err)
5671                 return err;
5672 #ifdef CONFIG_IPW2100_MONITOR
5673         if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
5674                 err = ipw2100_set_channel(priv, priv->channel, batch_mode);
5675                 if (err)
5676                         return err;
5677
5678                 IPW_DEBUG_INFO("exit\n");
5679
5680                 return 0;
5681         }
5682 #endif                          /* CONFIG_IPW2100_MONITOR */
5683
5684         err = ipw2100_read_mac_address(priv);
5685         if (err)
5686                 return -EIO;
5687
5688         err = ipw2100_set_mac_address(priv, batch_mode);
5689         if (err)
5690                 return err;
5691
5692         err = ipw2100_set_port_type(priv, priv->ieee->iw_mode, batch_mode);
5693         if (err)
5694                 return err;
5695
5696         if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
5697                 err = ipw2100_set_channel(priv, priv->channel, batch_mode);
5698                 if (err)
5699                         return err;
5700         }
5701
5702         err = ipw2100_system_config(priv, batch_mode);
5703         if (err)
5704                 return err;
5705
5706         err = ipw2100_set_tx_rates(priv, priv->tx_rates, batch_mode);
5707         if (err)
5708                 return err;
5709
5710         /* Default to power mode OFF */
5711         err = ipw2100_set_power_mode(priv, IPW_POWER_MODE_CAM);
5712         if (err)
5713                 return err;
5714
5715         err = ipw2100_set_rts_threshold(priv, priv->rts_threshold);
5716         if (err)
5717                 return err;
5718
5719         if (priv->config & CFG_STATIC_BSSID)
5720                 bssid = priv->bssid;
5721         else
5722                 bssid = NULL;
5723         err = ipw2100_set_mandatory_bssid(priv, bssid, batch_mode);
5724         if (err)
5725                 return err;
5726
5727         if (priv->config & CFG_STATIC_ESSID)
5728                 err = ipw2100_set_essid(priv, priv->essid, priv->essid_len,
5729                                         batch_mode);
5730         else
5731                 err = ipw2100_set_essid(priv, NULL, 0, batch_mode);
5732         if (err)
5733                 return err;
5734
5735         err = ipw2100_configure_security(priv, batch_mode);
5736         if (err)
5737                 return err;
5738
5739         if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
5740                 err =
5741                     ipw2100_set_ibss_beacon_interval(priv,
5742                                                      priv->beacon_interval,
5743                                                      batch_mode);
5744                 if (err)
5745                         return err;
5746
5747                 err = ipw2100_set_tx_power(priv, priv->tx_power);
5748                 if (err)
5749                         return err;
5750         }
5751
5752         /*
5753            err = ipw2100_set_fragmentation_threshold(
5754            priv, priv->frag_threshold, batch_mode);
5755            if (err)
5756            return err;
5757          */
5758
5759         IPW_DEBUG_INFO("exit\n");
5760
5761         return 0;
5762 }
5763
5764 /*************************************************************************
5765  *
5766  * EXTERNALLY CALLED METHODS
5767  *
5768  *************************************************************************/
5769
5770 /* This method is called by the network layer -- not to be confused with
5771  * ipw2100_set_mac_address() declared above called by this driver (and this
5772  * method as well) to talk to the firmware */
5773 static int ipw2100_set_address(struct net_device *dev, void *p)
5774 {
5775         struct ipw2100_priv *priv = libipw_priv(dev);
5776         struct sockaddr *addr = p;
5777         int err = 0;
5778
5779         if (!is_valid_ether_addr(addr->sa_data))
5780                 return -EADDRNOTAVAIL;
5781
5782         mutex_lock(&priv->action_mutex);
5783
5784         priv->config |= CFG_CUSTOM_MAC;
5785         memcpy(priv->mac_addr, addr->sa_data, ETH_ALEN);
5786
5787         err = ipw2100_set_mac_address(priv, 0);
5788         if (err)
5789                 goto done;
5790
5791         priv->reset_backoff = 0;
5792         mutex_unlock(&priv->action_mutex);
5793         ipw2100_reset_adapter(&priv->reset_work.work);
5794         return 0;
5795
5796       done:
5797         mutex_unlock(&priv->action_mutex);
5798         return err;
5799 }
5800
5801 static int ipw2100_open(struct net_device *dev)
5802 {
5803         struct ipw2100_priv *priv = libipw_priv(dev);
5804         unsigned long flags;
5805         IPW_DEBUG_INFO("dev->open\n");
5806
5807         spin_lock_irqsave(&priv->low_lock, flags);
5808         if (priv->status & STATUS_ASSOCIATED) {
5809                 netif_carrier_on(dev);
5810                 netif_start_queue(dev);
5811         }
5812         spin_unlock_irqrestore(&priv->low_lock, flags);
5813
5814         return 0;
5815 }
5816
5817 static int ipw2100_close(struct net_device *dev)
5818 {
5819         struct ipw2100_priv *priv = libipw_priv(dev);
5820         unsigned long flags;
5821         struct list_head *element;
5822         struct ipw2100_tx_packet *packet;
5823
5824         IPW_DEBUG_INFO("enter\n");
5825
5826         spin_lock_irqsave(&priv->low_lock, flags);
5827
5828         if (priv->status & STATUS_ASSOCIATED)
5829                 netif_carrier_off(dev);
5830         netif_stop_queue(dev);
5831
5832         /* Flush the TX queue ... */
5833         while (!list_empty(&priv->tx_pend_list)) {
5834                 element = priv->tx_pend_list.next;
5835                 packet = list_entry(element, struct ipw2100_tx_packet, list);
5836
5837                 list_del(element);
5838                 DEC_STAT(&priv->tx_pend_stat);
5839
5840                 libipw_txb_free(packet->info.d_struct.txb);
5841                 packet->info.d_struct.txb = NULL;
5842
5843                 list_add_tail(element, &priv->tx_free_list);
5844                 INC_STAT(&priv->tx_free_stat);
5845         }
5846         spin_unlock_irqrestore(&priv->low_lock, flags);
5847
5848         IPW_DEBUG_INFO("exit\n");
5849
5850         return 0;
5851 }
5852
5853 /*
5854  * TODO:  Fix this function... its just wrong
5855  */
5856 static void ipw2100_tx_timeout(struct net_device *dev)
5857 {
5858         struct ipw2100_priv *priv = libipw_priv(dev);
5859
5860         dev->stats.tx_errors++;
5861
5862 #ifdef CONFIG_IPW2100_MONITOR
5863         if (priv->ieee->iw_mode == IW_MODE_MONITOR)
5864                 return;
5865 #endif
5866
5867         IPW_DEBUG_INFO("%s: TX timed out.  Scheduling firmware restart.\n",
5868                        dev->name);
5869         schedule_reset(priv);
5870 }
5871
5872 static int ipw2100_wpa_enable(struct ipw2100_priv *priv, int value)
5873 {
5874         /* This is called when wpa_supplicant loads and closes the driver
5875          * interface. */
5876         priv->ieee->wpa_enabled = value;
5877         return 0;
5878 }
5879
5880 static int ipw2100_wpa_set_auth_algs(struct ipw2100_priv *priv, int value)
5881 {
5882
5883         struct libipw_device *ieee = priv->ieee;
5884         struct libipw_security sec = {
5885                 .flags = SEC_AUTH_MODE,
5886         };
5887         int ret = 0;
5888
5889         if (value & IW_AUTH_ALG_SHARED_KEY) {
5890                 sec.auth_mode = WLAN_AUTH_SHARED_KEY;
5891                 ieee->open_wep = 0;
5892         } else if (value & IW_AUTH_ALG_OPEN_SYSTEM) {
5893                 sec.auth_mode = WLAN_AUTH_OPEN;
5894                 ieee->open_wep = 1;
5895         } else if (value & IW_AUTH_ALG_LEAP) {
5896                 sec.auth_mode = WLAN_AUTH_LEAP;
5897                 ieee->open_wep = 1;
5898         } else
5899                 return -EINVAL;
5900
5901         if (ieee->set_security)
5902                 ieee->set_security(ieee->dev, &sec);
5903         else
5904                 ret = -EOPNOTSUPP;
5905
5906         return ret;
5907 }
5908
5909 static void ipw2100_wpa_assoc_frame(struct ipw2100_priv *priv,
5910                                     char *wpa_ie, int wpa_ie_len)
5911 {
5912
5913         struct ipw2100_wpa_assoc_frame frame;
5914
5915         frame.fixed_ie_mask = 0;
5916
5917         /* copy WPA IE */
5918         memcpy(frame.var_ie, wpa_ie, wpa_ie_len);
5919         frame.var_ie_len = wpa_ie_len;
5920
5921         /* make sure WPA is enabled */
5922         ipw2100_wpa_enable(priv, 1);
5923         ipw2100_set_wpa_ie(priv, &frame, 0);
5924 }
5925
5926 static void ipw_ethtool_get_drvinfo(struct net_device *dev,
5927                                     struct ethtool_drvinfo *info)
5928 {
5929         struct ipw2100_priv *priv = libipw_priv(dev);
5930         char fw_ver[64], ucode_ver[64];
5931
5932         strlcpy(info->driver, DRV_NAME, sizeof(info->driver));
5933         strlcpy(info->version, DRV_VERSION, sizeof(info->version));
5934
5935         ipw2100_get_fwversion(priv, fw_ver, sizeof(fw_ver));
5936         ipw2100_get_ucodeversion(priv, ucode_ver, sizeof(ucode_ver));
5937
5938         snprintf(info->fw_version, sizeof(info->fw_version), "%s:%d:%s",
5939                  fw_ver, priv->eeprom_version, ucode_ver);
5940
5941         strlcpy(info->bus_info, pci_name(priv->pci_dev),
5942                 sizeof(info->bus_info));
5943 }
5944
5945 static u32 ipw2100_ethtool_get_link(struct net_device *dev)
5946 {
5947         struct ipw2100_priv *priv = libipw_priv(dev);
5948         return (priv->status & STATUS_ASSOCIATED) ? 1 : 0;
5949 }
5950
5951 static const struct ethtool_ops ipw2100_ethtool_ops = {
5952         .get_link = ipw2100_ethtool_get_link,
5953         .get_drvinfo = ipw_ethtool_get_drvinfo,
5954 };
5955
5956 static void ipw2100_hang_check(struct work_struct *work)
5957 {
5958         struct ipw2100_priv *priv =
5959                 container_of(work, struct ipw2100_priv, hang_check.work);
5960         unsigned long flags;
5961         u32 rtc = 0xa5a5a5a5;
5962         u32 len = sizeof(rtc);
5963         int restart = 0;
5964
5965         spin_lock_irqsave(&priv->low_lock, flags);
5966
5967         if (priv->fatal_error != 0) {
5968                 /* If fatal_error is set then we need to restart */
5969                 IPW_DEBUG_INFO("%s: Hardware fatal error detected.\n",
5970                                priv->net_dev->name);
5971
5972                 restart = 1;
5973         } else if (ipw2100_get_ordinal(priv, IPW_ORD_RTC_TIME, &rtc, &len) ||
5974                    (rtc == priv->last_rtc)) {
5975                 /* Check if firmware is hung */
5976                 IPW_DEBUG_INFO("%s: Firmware RTC stalled.\n",
5977                                priv->net_dev->name);
5978
5979                 restart = 1;
5980         }
5981
5982         if (restart) {
5983                 /* Kill timer */
5984                 priv->stop_hang_check = 1;
5985                 priv->hangs++;
5986
5987                 /* Restart the NIC */
5988                 schedule_reset(priv);
5989         }
5990
5991         priv->last_rtc = rtc;
5992
5993         if (!priv->stop_hang_check)
5994                 schedule_delayed_work(&priv->hang_check, HZ / 2);
5995
5996         spin_unlock_irqrestore(&priv->low_lock, flags);
5997 }
5998
5999 static void ipw2100_rf_kill(struct work_struct *work)
6000 {
6001         struct ipw2100_priv *priv =
6002                 container_of(work, struct ipw2100_priv, rf_kill.work);
6003         unsigned long flags;
6004
6005         spin_lock_irqsave(&priv->low_lock, flags);
6006
6007         if (rf_kill_active(priv)) {
6008                 IPW_DEBUG_RF_KILL("RF Kill active, rescheduling GPIO check\n");
6009                 if (!priv->stop_rf_kill)
6010                         schedule_delayed_work(&priv->rf_kill,
6011                                               round_jiffies_relative(HZ));
6012                 goto exit_unlock;
6013         }
6014
6015         /* RF Kill is now disabled, so bring the device back up */
6016
6017         if (!(priv->status & STATUS_RF_KILL_MASK)) {
6018                 IPW_DEBUG_RF_KILL("HW RF Kill no longer active, restarting "
6019                                   "device\n");
6020                 schedule_reset(priv);
6021         } else
6022                 IPW_DEBUG_RF_KILL("HW RF Kill deactivated.  SW RF Kill still "
6023                                   "enabled\n");
6024
6025       exit_unlock:
6026         spin_unlock_irqrestore(&priv->low_lock, flags);
6027 }
6028
6029 static void ipw2100_irq_tasklet(struct ipw2100_priv *priv);
6030
6031 static const struct net_device_ops ipw2100_netdev_ops = {
6032         .ndo_open               = ipw2100_open,
6033         .ndo_stop               = ipw2100_close,
6034         .ndo_start_xmit         = libipw_xmit,
6035         .ndo_tx_timeout         = ipw2100_tx_timeout,
6036         .ndo_set_mac_address    = ipw2100_set_address,
6037         .ndo_validate_addr      = eth_validate_addr,
6038 };
6039
6040 /* Look into using netdev destructor to shutdown libipw? */
6041
6042 static struct net_device *ipw2100_alloc_device(struct pci_dev *pci_dev,
6043                                                void __iomem * ioaddr)
6044 {
6045         struct ipw2100_priv *priv;
6046         struct net_device *dev;
6047
6048         dev = alloc_libipw(sizeof(struct ipw2100_priv), 0);
6049         if (!dev)
6050                 return NULL;
6051         priv = libipw_priv(dev);
6052         priv->ieee = netdev_priv(dev);
6053         priv->pci_dev = pci_dev;
6054         priv->net_dev = dev;
6055         priv->ioaddr = ioaddr;
6056
6057         priv->ieee->hard_start_xmit = ipw2100_tx;
6058         priv->ieee->set_security = shim__set_security;
6059
6060         priv->ieee->perfect_rssi = -20;
6061         priv->ieee->worst_rssi = -85;
6062
6063         dev->netdev_ops = &ipw2100_netdev_ops;
6064         dev->ethtool_ops = &ipw2100_ethtool_ops;
6065         dev->wireless_handlers = &ipw2100_wx_handler_def;
6066         priv->wireless_data.libipw = priv->ieee;
6067         dev->wireless_data = &priv->wireless_data;
6068         dev->watchdog_timeo = 3 * HZ;
6069         dev->irq = 0;
6070         dev->min_mtu = 68;
6071         dev->max_mtu = LIBIPW_DATA_LEN;
6072
6073         /* NOTE: We don't use the wireless_handlers hook
6074          * in dev as the system will start throwing WX requests
6075          * to us before we're actually initialized and it just
6076          * ends up causing problems.  So, we just handle
6077          * the WX extensions through the ipw2100_ioctl interface */
6078
6079         /* memset() puts everything to 0, so we only have explicitly set
6080          * those values that need to be something else */
6081
6082         /* If power management is turned on, default to AUTO mode */
6083         priv->power_mode = IPW_POWER_AUTO;
6084
6085 #ifdef CONFIG_IPW2100_MONITOR
6086         priv->config |= CFG_CRC_CHECK;
6087 #endif
6088         priv->ieee->wpa_enabled = 0;
6089         priv->ieee->drop_unencrypted = 0;
6090         priv->ieee->privacy_invoked = 0;
6091         priv->ieee->ieee802_1x = 1;
6092
6093         /* Set module parameters */
6094         switch (network_mode) {
6095         case 1:
6096                 priv->ieee->iw_mode = IW_MODE_ADHOC;
6097                 break;
6098 #ifdef CONFIG_IPW2100_MONITOR
6099         case 2:
6100                 priv->ieee->iw_mode = IW_MODE_MONITOR;
6101                 break;
6102 #endif
6103         default:
6104         case 0:
6105                 priv->ieee->iw_mode = IW_MODE_INFRA;
6106                 break;
6107         }
6108
6109         if (disable == 1)
6110                 priv->status |= STATUS_RF_KILL_SW;
6111
6112         if (channel != 0 &&
6113             ((channel >= REG_MIN_CHANNEL) && (channel <= REG_MAX_CHANNEL))) {
6114                 priv->config |= CFG_STATIC_CHANNEL;
6115                 priv->channel = channel;
6116         }
6117
6118         if (associate)
6119                 priv->config |= CFG_ASSOCIATE;
6120
6121         priv->beacon_interval = DEFAULT_BEACON_INTERVAL;
6122         priv->short_retry_limit = DEFAULT_SHORT_RETRY_LIMIT;
6123         priv->long_retry_limit = DEFAULT_LONG_RETRY_LIMIT;
6124         priv->rts_threshold = DEFAULT_RTS_THRESHOLD | RTS_DISABLED;
6125         priv->frag_threshold = DEFAULT_FTS | FRAG_DISABLED;
6126         priv->tx_power = IPW_TX_POWER_DEFAULT;
6127         priv->tx_rates = DEFAULT_TX_RATES;
6128
6129         strcpy(priv->nick, "ipw2100");
6130
6131         spin_lock_init(&priv->low_lock);
6132         mutex_init(&priv->action_mutex);
6133         mutex_init(&priv->adapter_mutex);
6134
6135         init_waitqueue_head(&priv->wait_command_queue);
6136
6137         netif_carrier_off(dev);
6138
6139         INIT_LIST_HEAD(&priv->msg_free_list);
6140         INIT_LIST_HEAD(&priv->msg_pend_list);
6141         INIT_STAT(&priv->msg_free_stat);
6142         INIT_STAT(&priv->msg_pend_stat);
6143
6144         INIT_LIST_HEAD(&priv->tx_free_list);
6145         INIT_LIST_HEAD(&priv->tx_pend_list);
6146         INIT_STAT(&priv->tx_free_stat);
6147         INIT_STAT(&priv->tx_pend_stat);
6148
6149         INIT_LIST_HEAD(&priv->fw_pend_list);
6150         INIT_STAT(&priv->fw_pend_stat);
6151
6152         INIT_DELAYED_WORK(&priv->reset_work, ipw2100_reset_adapter);
6153         INIT_DELAYED_WORK(&priv->security_work, ipw2100_security_work);
6154         INIT_DELAYED_WORK(&priv->wx_event_work, ipw2100_wx_event_work);
6155         INIT_DELAYED_WORK(&priv->hang_check, ipw2100_hang_check);
6156         INIT_DELAYED_WORK(&priv->rf_kill, ipw2100_rf_kill);
6157         INIT_DELAYED_WORK(&priv->scan_event, ipw2100_scan_event);
6158
6159         tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long))
6160                      ipw2100_irq_tasklet, (unsigned long)priv);
6161
6162         /* NOTE:  We do not start the deferred work for status checks yet */
6163         priv->stop_rf_kill = 1;
6164         priv->stop_hang_check = 1;
6165
6166         return dev;
6167 }
6168
6169 static int ipw2100_pci_init_one(struct pci_dev *pci_dev,
6170                                 const struct pci_device_id *ent)
6171 {
6172         void __iomem *ioaddr;
6173         struct net_device *dev = NULL;
6174         struct ipw2100_priv *priv = NULL;
6175         int err = 0;
6176         int registered = 0;
6177         u32 val;
6178
6179         IPW_DEBUG_INFO("enter\n");
6180
6181         if (!(pci_resource_flags(pci_dev, 0) & IORESOURCE_MEM)) {
6182                 IPW_DEBUG_INFO("weird - resource type is not memory\n");
6183                 err = -ENODEV;
6184                 goto out;
6185         }
6186
6187         ioaddr = pci_iomap(pci_dev, 0, 0);
6188         if (!ioaddr) {
6189                 printk(KERN_WARNING DRV_NAME
6190                        "Error calling ioremap_nocache.\n");
6191                 err = -EIO;
6192                 goto fail;
6193         }
6194
6195         /* allocate and initialize our net_device */
6196         dev = ipw2100_alloc_device(pci_dev, ioaddr);
6197         if (!dev) {
6198                 printk(KERN_WARNING DRV_NAME
6199                        "Error calling ipw2100_alloc_device.\n");
6200                 err = -ENOMEM;
6201                 goto fail;
6202         }
6203
6204         /* set up PCI mappings for device */
6205         err = pci_enable_device(pci_dev);
6206         if (err) {
6207                 printk(KERN_WARNING DRV_NAME
6208                        "Error calling pci_enable_device.\n");
6209                 return err;
6210         }
6211
6212         priv = libipw_priv(dev);
6213
6214         pci_set_master(pci_dev);
6215         pci_set_drvdata(pci_dev, priv);
6216
6217         err = pci_set_dma_mask(pci_dev, DMA_BIT_MASK(32));
6218         if (err) {
6219                 printk(KERN_WARNING DRV_NAME
6220                        "Error calling pci_set_dma_mask.\n");
6221                 pci_disable_device(pci_dev);
6222                 return err;
6223         }
6224
6225         err = pci_request_regions(pci_dev, DRV_NAME);
6226         if (err) {
6227                 printk(KERN_WARNING DRV_NAME
6228                        "Error calling pci_request_regions.\n");
6229                 pci_disable_device(pci_dev);
6230                 return err;
6231         }
6232
6233         /* We disable the RETRY_TIMEOUT register (0x41) to keep
6234          * PCI Tx retries from interfering with C3 CPU state */
6235         pci_read_config_dword(pci_dev, 0x40, &val);
6236         if ((val & 0x0000ff00) != 0)
6237                 pci_write_config_dword(pci_dev, 0x40, val & 0xffff00ff);
6238
6239         if (!ipw2100_hw_is_adapter_in_system(dev)) {
6240                 printk(KERN_WARNING DRV_NAME
6241                        "Device not found via register read.\n");
6242                 err = -ENODEV;
6243                 goto fail;
6244         }
6245
6246         SET_NETDEV_DEV(dev, &pci_dev->dev);
6247
6248         /* Force interrupts to be shut off on the device */
6249         priv->status |= STATUS_INT_ENABLED;
6250         ipw2100_disable_interrupts(priv);
6251
6252         /* Allocate and initialize the Tx/Rx queues and lists */
6253         if (ipw2100_queues_allocate(priv)) {
6254                 printk(KERN_WARNING DRV_NAME
6255                        "Error calling ipw2100_queues_allocate.\n");
6256                 err = -ENOMEM;
6257                 goto fail;
6258         }
6259         ipw2100_queues_initialize(priv);
6260
6261         err = request_irq(pci_dev->irq,
6262                           ipw2100_interrupt, IRQF_SHARED, dev->name, priv);
6263         if (err) {
6264                 printk(KERN_WARNING DRV_NAME
6265                        "Error calling request_irq: %d.\n", pci_dev->irq);
6266                 goto fail;
6267         }
6268         dev->irq = pci_dev->irq;
6269
6270         IPW_DEBUG_INFO("Attempting to register device...\n");
6271
6272         printk(KERN_INFO DRV_NAME
6273                ": Detected Intel PRO/Wireless 2100 Network Connection\n");
6274
6275         err = ipw2100_up(priv, 1);
6276         if (err)
6277                 goto fail;
6278
6279         err = ipw2100_wdev_init(dev);
6280         if (err)
6281                 goto fail;
6282         registered = 1;
6283
6284         /* Bring up the interface.  Pre 0.46, after we registered the
6285          * network device we would call ipw2100_up.  This introduced a race
6286          * condition with newer hotplug configurations (network was coming
6287          * up and making calls before the device was initialized).
6288          */
6289         err = register_netdev(dev);
6290         if (err) {
6291                 printk(KERN_WARNING DRV_NAME
6292                        "Error calling register_netdev.\n");
6293                 goto fail;
6294         }
6295         registered = 2;
6296
6297         mutex_lock(&priv->action_mutex);
6298
6299         IPW_DEBUG_INFO("%s: Bound to %s\n", dev->name, pci_name(pci_dev));
6300
6301         /* perform this after register_netdev so that dev->name is set */
6302         err = sysfs_create_group(&pci_dev->dev.kobj, &ipw2100_attribute_group);
6303         if (err)
6304                 goto fail_unlock;
6305
6306         /* If the RF Kill switch is disabled, go ahead and complete the
6307          * startup sequence */
6308         if (!(priv->status & STATUS_RF_KILL_MASK)) {
6309                 /* Enable the adapter - sends HOST_COMPLETE */
6310                 if (ipw2100_enable_adapter(priv)) {
6311                         printk(KERN_WARNING DRV_NAME
6312                                ": %s: failed in call to enable adapter.\n",
6313                                priv->net_dev->name);
6314                         ipw2100_hw_stop_adapter(priv);
6315                         err = -EIO;
6316                         goto fail_unlock;
6317                 }
6318
6319                 /* Start a scan . . . */
6320                 ipw2100_set_scan_options(priv);
6321                 ipw2100_start_scan(priv);
6322         }
6323
6324         IPW_DEBUG_INFO("exit\n");
6325
6326         priv->status |= STATUS_INITIALIZED;
6327
6328         mutex_unlock(&priv->action_mutex);
6329 out:
6330         return err;
6331
6332       fail_unlock:
6333         mutex_unlock(&priv->action_mutex);
6334       fail:
6335         if (dev) {
6336                 if (registered >= 2)
6337                         unregister_netdev(dev);
6338
6339                 if (registered) {
6340                         wiphy_unregister(priv->ieee->wdev.wiphy);
6341                         kfree(priv->ieee->bg_band.channels);
6342                 }
6343
6344                 ipw2100_hw_stop_adapter(priv);
6345
6346                 ipw2100_disable_interrupts(priv);
6347
6348                 if (dev->irq)
6349                         free_irq(dev->irq, priv);
6350
6351                 ipw2100_kill_works(priv);
6352
6353                 /* These are safe to call even if they weren't allocated */
6354                 ipw2100_queues_free(priv);
6355                 sysfs_remove_group(&pci_dev->dev.kobj,
6356                                    &ipw2100_attribute_group);
6357
6358                 free_libipw(dev, 0);
6359         }
6360
6361         pci_iounmap(pci_dev, ioaddr);
6362
6363         pci_release_regions(pci_dev);
6364         pci_disable_device(pci_dev);
6365         goto out;
6366 }
6367
6368 static void ipw2100_pci_remove_one(struct pci_dev *pci_dev)
6369 {
6370         struct ipw2100_priv *priv = pci_get_drvdata(pci_dev);
6371         struct net_device *dev = priv->net_dev;
6372
6373         mutex_lock(&priv->action_mutex);
6374
6375         priv->status &= ~STATUS_INITIALIZED;
6376
6377         sysfs_remove_group(&pci_dev->dev.kobj, &ipw2100_attribute_group);
6378
6379 #ifdef CONFIG_PM
6380         if (ipw2100_firmware.version)
6381                 ipw2100_release_firmware(priv, &ipw2100_firmware);
6382 #endif
6383         /* Take down the hardware */
6384         ipw2100_down(priv);
6385
6386         /* Release the mutex so that the network subsystem can
6387          * complete any needed calls into the driver... */
6388         mutex_unlock(&priv->action_mutex);
6389
6390         /* Unregister the device first - this results in close()
6391          * being called if the device is open.  If we free storage
6392          * first, then close() will crash.
6393          * FIXME: remove the comment above. */
6394         unregister_netdev(dev);
6395
6396         ipw2100_kill_works(priv);
6397
6398         ipw2100_queues_free(priv);
6399
6400         /* Free potential debugging firmware snapshot */
6401         ipw2100_snapshot_free(priv);
6402
6403         free_irq(dev->irq, priv);
6404
6405         pci_iounmap(pci_dev, priv->ioaddr);
6406
6407         /* wiphy_unregister needs to be here, before free_libipw */
6408         wiphy_unregister(priv->ieee->wdev.wiphy);
6409         kfree(priv->ieee->bg_band.channels);
6410         free_libipw(dev, 0);
6411
6412         pci_release_regions(pci_dev);
6413         pci_disable_device(pci_dev);
6414
6415         IPW_DEBUG_INFO("exit\n");
6416 }
6417
6418 #ifdef CONFIG_PM
6419 static int ipw2100_suspend(struct pci_dev *pci_dev, pm_message_t state)
6420 {
6421         struct ipw2100_priv *priv = pci_get_drvdata(pci_dev);
6422         struct net_device *dev = priv->net_dev;
6423
6424         IPW_DEBUG_INFO("%s: Going into suspend...\n", dev->name);
6425
6426         mutex_lock(&priv->action_mutex);
6427         if (priv->status & STATUS_INITIALIZED) {
6428                 /* Take down the device; powers it off, etc. */
6429                 ipw2100_down(priv);
6430         }
6431
6432         /* Remove the PRESENT state of the device */
6433         netif_device_detach(dev);
6434
6435         pci_save_state(pci_dev);
6436         pci_disable_device(pci_dev);
6437         pci_set_power_state(pci_dev, PCI_D3hot);
6438
6439         priv->suspend_at = get_seconds();
6440
6441         mutex_unlock(&priv->action_mutex);
6442
6443         return 0;
6444 }
6445
6446 static int ipw2100_resume(struct pci_dev *pci_dev)
6447 {
6448         struct ipw2100_priv *priv = pci_get_drvdata(pci_dev);
6449         struct net_device *dev = priv->net_dev;
6450         int err;
6451         u32 val;
6452
6453         if (IPW2100_PM_DISABLED)
6454                 return 0;
6455
6456         mutex_lock(&priv->action_mutex);
6457
6458         IPW_DEBUG_INFO("%s: Coming out of suspend...\n", dev->name);
6459
6460         pci_set_power_state(pci_dev, PCI_D0);
6461         err = pci_enable_device(pci_dev);
6462         if (err) {
6463                 printk(KERN_ERR "%s: pci_enable_device failed on resume\n",
6464                        dev->name);
6465                 mutex_unlock(&priv->action_mutex);
6466                 return err;
6467         }
6468         pci_restore_state(pci_dev);
6469
6470         /*
6471          * Suspend/Resume resets the PCI configuration space, so we have to
6472          * re-disable the RETRY_TIMEOUT register (0x41) to keep PCI Tx retries
6473          * from interfering with C3 CPU state. pci_restore_state won't help
6474          * here since it only restores the first 64 bytes pci config header.
6475          */
6476         pci_read_config_dword(pci_dev, 0x40, &val);
6477         if ((val & 0x0000ff00) != 0)
6478                 pci_write_config_dword(pci_dev, 0x40, val & 0xffff00ff);
6479
6480         /* Set the device back into the PRESENT state; this will also wake
6481          * the queue of needed */
6482         netif_device_attach(dev);
6483
6484         priv->suspend_time = get_seconds() - priv->suspend_at;
6485
6486         /* Bring the device back up */
6487         if (!(priv->status & STATUS_RF_KILL_SW))
6488                 ipw2100_up(priv, 0);
6489
6490         mutex_unlock(&priv->action_mutex);
6491
6492         return 0;
6493 }
6494 #endif
6495
6496 static void ipw2100_shutdown(struct pci_dev *pci_dev)
6497 {
6498         struct ipw2100_priv *priv = pci_get_drvdata(pci_dev);
6499
6500         /* Take down the device; powers it off, etc. */
6501         ipw2100_down(priv);
6502
6503         pci_disable_device(pci_dev);
6504 }
6505
6506 #define IPW2100_DEV_ID(x) { PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, x }
6507
6508 static const struct pci_device_id ipw2100_pci_id_table[] = {
6509         IPW2100_DEV_ID(0x2520), /* IN 2100A mPCI 3A */
6510         IPW2100_DEV_ID(0x2521), /* IN 2100A mPCI 3B */
6511         IPW2100_DEV_ID(0x2524), /* IN 2100A mPCI 3B */
6512         IPW2100_DEV_ID(0x2525), /* IN 2100A mPCI 3B */
6513         IPW2100_DEV_ID(0x2526), /* IN 2100A mPCI Gen A3 */
6514         IPW2100_DEV_ID(0x2522), /* IN 2100 mPCI 3B */
6515         IPW2100_DEV_ID(0x2523), /* IN 2100 mPCI 3A */
6516         IPW2100_DEV_ID(0x2527), /* IN 2100 mPCI 3B */
6517         IPW2100_DEV_ID(0x2528), /* IN 2100 mPCI 3B */
6518         IPW2100_DEV_ID(0x2529), /* IN 2100 mPCI 3B */
6519         IPW2100_DEV_ID(0x252B), /* IN 2100 mPCI 3A */
6520         IPW2100_DEV_ID(0x252C), /* IN 2100 mPCI 3A */
6521         IPW2100_DEV_ID(0x252D), /* IN 2100 mPCI 3A */
6522
6523         IPW2100_DEV_ID(0x2550), /* IB 2100A mPCI 3B */
6524         IPW2100_DEV_ID(0x2551), /* IB 2100 mPCI 3B */
6525         IPW2100_DEV_ID(0x2553), /* IB 2100 mPCI 3B */
6526         IPW2100_DEV_ID(0x2554), /* IB 2100 mPCI 3B */
6527         IPW2100_DEV_ID(0x2555), /* IB 2100 mPCI 3B */
6528
6529         IPW2100_DEV_ID(0x2560), /* DE 2100A mPCI 3A */
6530         IPW2100_DEV_ID(0x2562), /* DE 2100A mPCI 3A */
6531         IPW2100_DEV_ID(0x2563), /* DE 2100A mPCI 3A */
6532         IPW2100_DEV_ID(0x2561), /* DE 2100 mPCI 3A */
6533         IPW2100_DEV_ID(0x2565), /* DE 2100 mPCI 3A */
6534         IPW2100_DEV_ID(0x2566), /* DE 2100 mPCI 3A */
6535         IPW2100_DEV_ID(0x2567), /* DE 2100 mPCI 3A */
6536
6537         IPW2100_DEV_ID(0x2570), /* GA 2100 mPCI 3B */
6538
6539         IPW2100_DEV_ID(0x2580), /* TO 2100A mPCI 3B */
6540         IPW2100_DEV_ID(0x2582), /* TO 2100A mPCI 3B */
6541         IPW2100_DEV_ID(0x2583), /* TO 2100A mPCI 3B */
6542         IPW2100_DEV_ID(0x2581), /* TO 2100 mPCI 3B */
6543         IPW2100_DEV_ID(0x2585), /* TO 2100 mPCI 3B */
6544         IPW2100_DEV_ID(0x2586), /* TO 2100 mPCI 3B */
6545         IPW2100_DEV_ID(0x2587), /* TO 2100 mPCI 3B */
6546
6547         IPW2100_DEV_ID(0x2590), /* SO 2100A mPCI 3B */
6548         IPW2100_DEV_ID(0x2592), /* SO 2100A mPCI 3B */
6549         IPW2100_DEV_ID(0x2591), /* SO 2100 mPCI 3B */
6550         IPW2100_DEV_ID(0x2593), /* SO 2100 mPCI 3B */
6551         IPW2100_DEV_ID(0x2596), /* SO 2100 mPCI 3B */
6552         IPW2100_DEV_ID(0x2598), /* SO 2100 mPCI 3B */
6553
6554         IPW2100_DEV_ID(0x25A0), /* HP 2100 mPCI 3B */
6555         {0,},
6556 };
6557
6558 MODULE_DEVICE_TABLE(pci, ipw2100_pci_id_table);
6559
6560 static struct pci_driver ipw2100_pci_driver = {
6561         .name = DRV_NAME,
6562         .id_table = ipw2100_pci_id_table,
6563         .probe = ipw2100_pci_init_one,
6564         .remove = ipw2100_pci_remove_one,
6565 #ifdef CONFIG_PM
6566         .suspend = ipw2100_suspend,
6567         .resume = ipw2100_resume,
6568 #endif
6569         .shutdown = ipw2100_shutdown,
6570 };
6571
6572 /**
6573  * Initialize the ipw2100 driver/module
6574  *
6575  * @returns 0 if ok, < 0 errno node con error.
6576  *
6577  * Note: we cannot init the /proc stuff until the PCI driver is there,
6578  * or we risk an unlikely race condition on someone accessing
6579  * uninitialized data in the PCI dev struct through /proc.
6580  */
6581 static int __init ipw2100_init(void)
6582 {
6583         int ret;
6584
6585         printk(KERN_INFO DRV_NAME ": %s, %s\n", DRV_DESCRIPTION, DRV_VERSION);
6586         printk(KERN_INFO DRV_NAME ": %s\n", DRV_COPYRIGHT);
6587
6588         pm_qos_add_request(&ipw2100_pm_qos_req, PM_QOS_CPU_DMA_LATENCY,
6589                            PM_QOS_DEFAULT_VALUE);
6590
6591         ret = pci_register_driver(&ipw2100_pci_driver);
6592         if (ret)
6593                 goto out;
6594
6595 #ifdef CONFIG_IPW2100_DEBUG
6596         ipw2100_debug_level = debug;
6597         ret = driver_create_file(&ipw2100_pci_driver.driver,
6598                                  &driver_attr_debug_level);
6599 #endif
6600
6601 out:
6602         return ret;
6603 }
6604
6605 /**
6606  * Cleanup ipw2100 driver registration
6607  */
6608 static void __exit ipw2100_exit(void)
6609 {
6610         /* FIXME: IPG: check that we have no instances of the devices open */
6611 #ifdef CONFIG_IPW2100_DEBUG
6612         driver_remove_file(&ipw2100_pci_driver.driver,
6613                            &driver_attr_debug_level);
6614 #endif
6615         pci_unregister_driver(&ipw2100_pci_driver);
6616         pm_qos_remove_request(&ipw2100_pm_qos_req);
6617 }
6618
6619 module_init(ipw2100_init);
6620 module_exit(ipw2100_exit);
6621
6622 static int ipw2100_wx_get_name(struct net_device *dev,
6623                                struct iw_request_info *info,
6624                                union iwreq_data *wrqu, char *extra)
6625 {
6626         /*
6627          * This can be called at any time.  No action lock required
6628          */
6629
6630         struct ipw2100_priv *priv = libipw_priv(dev);
6631         if (!(priv->status & STATUS_ASSOCIATED))
6632                 strcpy(wrqu->name, "unassociated");
6633         else
6634                 snprintf(wrqu->name, IFNAMSIZ, "IEEE 802.11b");
6635
6636         IPW_DEBUG_WX("Name: %s\n", wrqu->name);
6637         return 0;
6638 }
6639
6640 static int ipw2100_wx_set_freq(struct net_device *dev,
6641                                struct iw_request_info *info,
6642                                union iwreq_data *wrqu, char *extra)
6643 {
6644         struct ipw2100_priv *priv = libipw_priv(dev);
6645         struct iw_freq *fwrq = &wrqu->freq;
6646         int err = 0;
6647
6648         if (priv->ieee->iw_mode == IW_MODE_INFRA)
6649                 return -EOPNOTSUPP;
6650
6651         mutex_lock(&priv->action_mutex);
6652         if (!(priv->status & STATUS_INITIALIZED)) {
6653                 err = -EIO;
6654                 goto done;
6655         }
6656
6657         /* if setting by freq convert to channel */
6658         if (fwrq->e == 1) {
6659                 if ((fwrq->m >= (int)2.412e8 && fwrq->m <= (int)2.487e8)) {
6660                         int f = fwrq->m / 100000;
6661                         int c = 0;
6662
6663                         while ((c < REG_MAX_CHANNEL) &&
6664                                (f != ipw2100_frequencies[c]))
6665                                 c++;
6666
6667                         /* hack to fall through */
6668                         fwrq->e = 0;
6669                         fwrq->m = c + 1;
6670                 }
6671         }
6672
6673         if (fwrq->e > 0 || fwrq->m > 1000) {
6674                 err = -EOPNOTSUPP;
6675                 goto done;
6676         } else {                /* Set the channel */
6677                 IPW_DEBUG_WX("SET Freq/Channel -> %d\n", fwrq->m);
6678                 err = ipw2100_set_channel(priv, fwrq->m, 0);
6679         }
6680
6681       done:
6682         mutex_unlock(&priv->action_mutex);
6683         return err;
6684 }
6685
6686 static int ipw2100_wx_get_freq(struct net_device *dev,
6687                                struct iw_request_info *info,
6688                                union iwreq_data *wrqu, char *extra)
6689 {
6690         /*
6691          * This can be called at any time.  No action lock required
6692          */
6693
6694         struct ipw2100_priv *priv = libipw_priv(dev);
6695
6696         wrqu->freq.e = 0;
6697
6698         /* If we are associated, trying to associate, or have a statically
6699          * configured CHANNEL then return that; otherwise return ANY */
6700         if (priv->config & CFG_STATIC_CHANNEL ||
6701             priv->status & STATUS_ASSOCIATED)
6702                 wrqu->freq.m = priv->channel;
6703         else
6704                 wrqu->freq.m = 0;
6705
6706         IPW_DEBUG_WX("GET Freq/Channel -> %d\n", priv->channel);
6707         return 0;
6708
6709 }
6710
6711 static int ipw2100_wx_set_mode(struct net_device *dev,
6712                                struct iw_request_info *info,
6713                                union iwreq_data *wrqu, char *extra)
6714 {
6715         struct ipw2100_priv *priv = libipw_priv(dev);
6716         int err = 0;
6717
6718         IPW_DEBUG_WX("SET Mode -> %d\n", wrqu->mode);
6719
6720         if (wrqu->mode == priv->ieee->iw_mode)
6721                 return 0;
6722
6723         mutex_lock(&priv->action_mutex);
6724         if (!(priv->status & STATUS_INITIALIZED)) {
6725                 err = -EIO;
6726                 goto done;
6727         }
6728
6729         switch (wrqu->mode) {
6730 #ifdef CONFIG_IPW2100_MONITOR
6731         case IW_MODE_MONITOR:
6732                 err = ipw2100_switch_mode(priv, IW_MODE_MONITOR);
6733                 break;
6734 #endif                          /* CONFIG_IPW2100_MONITOR */
6735         case IW_MODE_ADHOC:
6736                 err = ipw2100_switch_mode(priv, IW_MODE_ADHOC);
6737                 break;
6738         case IW_MODE_INFRA:
6739         case IW_MODE_AUTO:
6740         default:
6741                 err = ipw2100_switch_mode(priv, IW_MODE_INFRA);
6742                 break;
6743         }
6744
6745       done:
6746         mutex_unlock(&priv->action_mutex);
6747         return err;
6748 }
6749
6750 static int ipw2100_wx_get_mode(struct net_device *dev,
6751                                struct iw_request_info *info,
6752                                union iwreq_data *wrqu, char *extra)
6753 {
6754         /*
6755          * This can be called at any time.  No action lock required
6756          */
6757
6758         struct ipw2100_priv *priv = libipw_priv(dev);
6759
6760         wrqu->mode = priv->ieee->iw_mode;
6761         IPW_DEBUG_WX("GET Mode -> %d\n", wrqu->mode);
6762
6763         return 0;
6764 }
6765
6766 #define POWER_MODES 5
6767
6768 /* Values are in microsecond */
6769 static const s32 timeout_duration[POWER_MODES] = {
6770         350000,
6771         250000,
6772         75000,
6773         37000,
6774         25000,
6775 };
6776
6777 static const s32 period_duration[POWER_MODES] = {
6778         400000,
6779         700000,
6780         1000000,
6781         1000000,
6782         1000000
6783 };
6784
6785 static int ipw2100_wx_get_range(struct net_device *dev,
6786                                 struct iw_request_info *info,
6787                                 union iwreq_data *wrqu, char *extra)
6788 {
6789         /*
6790          * This can be called at any time.  No action lock required
6791          */
6792
6793         struct ipw2100_priv *priv = libipw_priv(dev);
6794         struct iw_range *range = (struct iw_range *)extra;
6795         u16 val;
6796         int i, level;
6797
6798         wrqu->data.length = sizeof(*range);
6799         memset(range, 0, sizeof(*range));
6800
6801         /* Let's try to keep this struct in the same order as in
6802          * linux/include/wireless.h
6803          */
6804
6805         /* TODO: See what values we can set, and remove the ones we can't
6806          * set, or fill them with some default data.
6807          */
6808
6809         /* ~5 Mb/s real (802.11b) */
6810         range->throughput = 5 * 1000 * 1000;
6811
6812 //      range->sensitivity;     /* signal level threshold range */
6813
6814         range->max_qual.qual = 100;
6815         /* TODO: Find real max RSSI and stick here */
6816         range->max_qual.level = 0;
6817         range->max_qual.noise = 0;
6818         range->max_qual.updated = 7;    /* Updated all three */
6819
6820         range->avg_qual.qual = 70;      /* > 8% missed beacons is 'bad' */
6821         /* TODO: Find real 'good' to 'bad' threshold value for RSSI */
6822         range->avg_qual.level = 20 + IPW2100_RSSI_TO_DBM;
6823         range->avg_qual.noise = 0;
6824         range->avg_qual.updated = 7;    /* Updated all three */
6825
6826         range->num_bitrates = RATE_COUNT;
6827
6828         for (i = 0; i < RATE_COUNT && i < IW_MAX_BITRATES; i++) {
6829                 range->bitrate[i] = ipw2100_bg_rates[i].bitrate * 100 * 1000;
6830         }
6831
6832         range->min_rts = MIN_RTS_THRESHOLD;
6833         range->max_rts = MAX_RTS_THRESHOLD;
6834         range->min_frag = MIN_FRAG_THRESHOLD;
6835         range->max_frag = MAX_FRAG_THRESHOLD;
6836
6837         range->min_pmp = period_duration[0];    /* Minimal PM period */
6838         range->max_pmp = period_duration[POWER_MODES - 1];      /* Maximal PM period */
6839         range->min_pmt = timeout_duration[POWER_MODES - 1];     /* Minimal PM timeout */
6840         range->max_pmt = timeout_duration[0];   /* Maximal PM timeout */
6841
6842         /* How to decode max/min PM period */
6843         range->pmp_flags = IW_POWER_PERIOD;
6844         /* How to decode max/min PM period */
6845         range->pmt_flags = IW_POWER_TIMEOUT;
6846         /* What PM options are supported */
6847         range->pm_capa = IW_POWER_TIMEOUT | IW_POWER_PERIOD;
6848
6849         range->encoding_size[0] = 5;
6850         range->encoding_size[1] = 13;   /* Different token sizes */
6851         range->num_encoding_sizes = 2;  /* Number of entry in the list */
6852         range->max_encoding_tokens = WEP_KEYS;  /* Max number of tokens */
6853 //      range->encoding_login_index;            /* token index for login token */
6854
6855         if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
6856                 range->txpower_capa = IW_TXPOW_DBM;
6857                 range->num_txpower = IW_MAX_TXPOWER;
6858                 for (i = 0, level = (IPW_TX_POWER_MAX_DBM * 16);
6859                      i < IW_MAX_TXPOWER;
6860                      i++, level -=
6861                      ((IPW_TX_POWER_MAX_DBM -
6862                        IPW_TX_POWER_MIN_DBM) * 16) / (IW_MAX_TXPOWER - 1))
6863                         range->txpower[i] = level / 16;
6864         } else {
6865                 range->txpower_capa = 0;
6866                 range->num_txpower = 0;
6867         }
6868
6869         /* Set the Wireless Extension versions */
6870         range->we_version_compiled = WIRELESS_EXT;
6871         range->we_version_source = 18;
6872
6873 //      range->retry_capa;      /* What retry options are supported */
6874 //      range->retry_flags;     /* How to decode max/min retry limit */
6875 //      range->r_time_flags;    /* How to decode max/min retry life */
6876 //      range->min_retry;       /* Minimal number of retries */
6877 //      range->max_retry;       /* Maximal number of retries */
6878 //      range->min_r_time;      /* Minimal retry lifetime */
6879 //      range->max_r_time;      /* Maximal retry lifetime */
6880
6881         range->num_channels = FREQ_COUNT;
6882
6883         val = 0;
6884         for (i = 0; i < FREQ_COUNT; i++) {
6885                 // TODO: Include only legal frequencies for some countries
6886 //              if (local->channel_mask & (1 << i)) {
6887                 range->freq[val].i = i + 1;
6888                 range->freq[val].m = ipw2100_frequencies[i] * 100000;
6889                 range->freq[val].e = 1;
6890                 val++;
6891 //              }
6892                 if (val == IW_MAX_FREQUENCIES)
6893                         break;
6894         }
6895         range->num_frequency = val;
6896
6897         /* Event capability (kernel + driver) */
6898         range->event_capa[0] = (IW_EVENT_CAPA_K_0 |
6899                                 IW_EVENT_CAPA_MASK(SIOCGIWAP));
6900         range->event_capa[1] = IW_EVENT_CAPA_K_1;
6901
6902         range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 |
6903                 IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP;
6904
6905         IPW_DEBUG_WX("GET Range\n");
6906
6907         return 0;
6908 }
6909
6910 static int ipw2100_wx_set_wap(struct net_device *dev,
6911                               struct iw_request_info *info,
6912                               union iwreq_data *wrqu, char *extra)
6913 {
6914         struct ipw2100_priv *priv = libipw_priv(dev);
6915         int err = 0;
6916
6917         // sanity checks
6918         if (wrqu->ap_addr.sa_family != ARPHRD_ETHER)
6919                 return -EINVAL;
6920
6921         mutex_lock(&priv->action_mutex);
6922         if (!(priv->status & STATUS_INITIALIZED)) {
6923                 err = -EIO;
6924                 goto done;
6925         }
6926
6927         if (is_broadcast_ether_addr(wrqu->ap_addr.sa_data) ||
6928             is_zero_ether_addr(wrqu->ap_addr.sa_data)) {
6929                 /* we disable mandatory BSSID association */
6930                 IPW_DEBUG_WX("exit - disable mandatory BSSID\n");
6931                 priv->config &= ~CFG_STATIC_BSSID;
6932                 err = ipw2100_set_mandatory_bssid(priv, NULL, 0);
6933                 goto done;
6934         }
6935
6936         priv->config |= CFG_STATIC_BSSID;
6937         memcpy(priv->mandatory_bssid_mac, wrqu->ap_addr.sa_data, ETH_ALEN);
6938
6939         err = ipw2100_set_mandatory_bssid(priv, wrqu->ap_addr.sa_data, 0);
6940
6941         IPW_DEBUG_WX("SET BSSID -> %pM\n", wrqu->ap_addr.sa_data);
6942
6943       done:
6944         mutex_unlock(&priv->action_mutex);
6945         return err;
6946 }
6947
6948 static int ipw2100_wx_get_wap(struct net_device *dev,
6949                               struct iw_request_info *info,
6950                               union iwreq_data *wrqu, char *extra)
6951 {
6952         /*
6953          * This can be called at any time.  No action lock required
6954          */
6955
6956         struct ipw2100_priv *priv = libipw_priv(dev);
6957
6958         /* If we are associated, trying to associate, or have a statically
6959          * configured BSSID then return that; otherwise return ANY */
6960         if (priv->config & CFG_STATIC_BSSID || priv->status & STATUS_ASSOCIATED) {
6961                 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
6962                 memcpy(wrqu->ap_addr.sa_data, priv->bssid, ETH_ALEN);
6963         } else
6964                 eth_zero_addr(wrqu->ap_addr.sa_data);
6965
6966         IPW_DEBUG_WX("Getting WAP BSSID: %pM\n", wrqu->ap_addr.sa_data);
6967         return 0;
6968 }
6969
6970 static int ipw2100_wx_set_essid(struct net_device *dev,
6971                                 struct iw_request_info *info,
6972                                 union iwreq_data *wrqu, char *extra)
6973 {
6974         struct ipw2100_priv *priv = libipw_priv(dev);
6975         char *essid = "";       /* ANY */
6976         int length = 0;
6977         int err = 0;
6978
6979         mutex_lock(&priv->action_mutex);
6980         if (!(priv->status & STATUS_INITIALIZED)) {
6981                 err = -EIO;
6982                 goto done;
6983         }
6984
6985         if (wrqu->essid.flags && wrqu->essid.length) {
6986                 length = wrqu->essid.length;
6987                 essid = extra;
6988         }
6989
6990         if (length == 0) {
6991                 IPW_DEBUG_WX("Setting ESSID to ANY\n");
6992                 priv->config &= ~CFG_STATIC_ESSID;
6993                 err = ipw2100_set_essid(priv, NULL, 0, 0);
6994                 goto done;
6995         }
6996
6997         length = min(length, IW_ESSID_MAX_SIZE);
6998
6999         priv->config |= CFG_STATIC_ESSID;
7000
7001         if (priv->essid_len == length && !memcmp(priv->essid, extra, length)) {
7002                 IPW_DEBUG_WX("ESSID set to current ESSID.\n");
7003                 err = 0;
7004                 goto done;
7005         }
7006
7007         IPW_DEBUG_WX("Setting ESSID: '%*pE' (%d)\n", length, essid, length);
7008
7009         priv->essid_len = length;
7010         memcpy(priv->essid, essid, priv->essid_len);
7011
7012         err = ipw2100_set_essid(priv, essid, length, 0);
7013
7014       done:
7015         mutex_unlock(&priv->action_mutex);
7016         return err;
7017 }
7018
7019 static int ipw2100_wx_get_essid(struct net_device *dev,
7020                                 struct iw_request_info *info,
7021                                 union iwreq_data *wrqu, char *extra)
7022 {
7023         /*
7024          * This can be called at any time.  No action lock required
7025          */
7026
7027         struct ipw2100_priv *priv = libipw_priv(dev);
7028
7029         /* If we are associated, trying to associate, or have a statically
7030          * configured ESSID then return that; otherwise return ANY */
7031         if (priv->config & CFG_STATIC_ESSID || priv->status & STATUS_ASSOCIATED) {
7032                 IPW_DEBUG_WX("Getting essid: '%*pE'\n",
7033                              priv->essid_len, priv->essid);
7034                 memcpy(extra, priv->essid, priv->essid_len);
7035                 wrqu->essid.length = priv->essid_len;
7036                 wrqu->essid.flags = 1;  /* active */
7037         } else {
7038                 IPW_DEBUG_WX("Getting essid: ANY\n");
7039                 wrqu->essid.length = 0;
7040                 wrqu->essid.flags = 0;  /* active */
7041         }
7042
7043         return 0;
7044 }
7045
7046 static int ipw2100_wx_set_nick(struct net_device *dev,
7047                                struct iw_request_info *info,
7048                                union iwreq_data *wrqu, char *extra)
7049 {
7050         /*
7051          * This can be called at any time.  No action lock required
7052          */
7053
7054         struct ipw2100_priv *priv = libipw_priv(dev);
7055
7056         if (wrqu->data.length > IW_ESSID_MAX_SIZE)
7057                 return -E2BIG;
7058
7059         wrqu->data.length = min_t(size_t, wrqu->data.length, sizeof(priv->nick));
7060         memset(priv->nick, 0, sizeof(priv->nick));
7061         memcpy(priv->nick, extra, wrqu->data.length);
7062
7063         IPW_DEBUG_WX("SET Nickname -> %s\n", priv->nick);
7064
7065         return 0;
7066 }
7067
7068 static int ipw2100_wx_get_nick(struct net_device *dev,
7069                                struct iw_request_info *info,
7070                                union iwreq_data *wrqu, char *extra)
7071 {
7072         /*
7073          * This can be called at any time.  No action lock required
7074          */
7075
7076         struct ipw2100_priv *priv = libipw_priv(dev);
7077
7078         wrqu->data.length = strlen(priv->nick);
7079         memcpy(extra, priv->nick, wrqu->data.length);
7080         wrqu->data.flags = 1;   /* active */
7081
7082         IPW_DEBUG_WX("GET Nickname -> %s\n", extra);
7083
7084         return 0;
7085 }
7086
7087 static int ipw2100_wx_set_rate(struct net_device *dev,
7088                                struct iw_request_info *info,
7089                                union iwreq_data *wrqu, char *extra)
7090 {
7091         struct ipw2100_priv *priv = libipw_priv(dev);
7092         u32 target_rate = wrqu->bitrate.value;
7093         u32 rate;
7094         int err = 0;
7095
7096         mutex_lock(&priv->action_mutex);
7097         if (!(priv->status & STATUS_INITIALIZED)) {
7098                 err = -EIO;
7099                 goto done;
7100         }
7101
7102         rate = 0;
7103
7104         if (target_rate == 1000000 ||
7105             (!wrqu->bitrate.fixed && target_rate > 1000000))
7106                 rate |= TX_RATE_1_MBIT;
7107         if (target_rate == 2000000 ||
7108             (!wrqu->bitrate.fixed && target_rate > 2000000))
7109                 rate |= TX_RATE_2_MBIT;
7110         if (target_rate == 5500000 ||
7111             (!wrqu->bitrate.fixed && target_rate > 5500000))
7112                 rate |= TX_RATE_5_5_MBIT;
7113         if (target_rate == 11000000 ||
7114             (!wrqu->bitrate.fixed && target_rate > 11000000))
7115                 rate |= TX_RATE_11_MBIT;
7116         if (rate == 0)
7117                 rate = DEFAULT_TX_RATES;
7118
7119         err = ipw2100_set_tx_rates(priv, rate, 0);
7120
7121         IPW_DEBUG_WX("SET Rate -> %04X\n", rate);
7122       done:
7123         mutex_unlock(&priv->action_mutex);
7124         return err;
7125 }
7126
7127 static int ipw2100_wx_get_rate(struct net_device *dev,
7128                                struct iw_request_info *info,
7129                                union iwreq_data *wrqu, char *extra)
7130 {
7131         struct ipw2100_priv *priv = libipw_priv(dev);
7132         int val;
7133         unsigned int len = sizeof(val);
7134         int err = 0;
7135
7136         if (!(priv->status & STATUS_ENABLED) ||
7137             priv->status & STATUS_RF_KILL_MASK ||
7138             !(priv->status & STATUS_ASSOCIATED)) {
7139                 wrqu->bitrate.value = 0;
7140                 return 0;
7141         }
7142
7143         mutex_lock(&priv->action_mutex);
7144         if (!(priv->status & STATUS_INITIALIZED)) {
7145                 err = -EIO;
7146                 goto done;
7147         }
7148
7149         err = ipw2100_get_ordinal(priv, IPW_ORD_CURRENT_TX_RATE, &val, &len);
7150         if (err) {
7151                 IPW_DEBUG_WX("failed querying ordinals.\n");
7152                 goto done;
7153         }
7154
7155         switch (val & TX_RATE_MASK) {
7156         case TX_RATE_1_MBIT:
7157                 wrqu->bitrate.value = 1000000;
7158                 break;
7159         case TX_RATE_2_MBIT:
7160                 wrqu->bitrate.value = 2000000;
7161                 break;
7162         case TX_RATE_5_5_MBIT:
7163                 wrqu->bitrate.value = 5500000;
7164                 break;
7165         case TX_RATE_11_MBIT:
7166                 wrqu->bitrate.value = 11000000;
7167                 break;
7168         default:
7169                 wrqu->bitrate.value = 0;
7170         }
7171
7172         IPW_DEBUG_WX("GET Rate -> %d\n", wrqu->bitrate.value);
7173
7174       done:
7175         mutex_unlock(&priv->action_mutex);
7176         return err;
7177 }
7178
7179 static int ipw2100_wx_set_rts(struct net_device *dev,
7180                               struct iw_request_info *info,
7181                               union iwreq_data *wrqu, char *extra)
7182 {
7183         struct ipw2100_priv *priv = libipw_priv(dev);
7184         int value, err;
7185
7186         /* Auto RTS not yet supported */
7187         if (wrqu->rts.fixed == 0)
7188                 return -EINVAL;
7189
7190         mutex_lock(&priv->action_mutex);
7191         if (!(priv->status & STATUS_INITIALIZED)) {
7192                 err = -EIO;
7193                 goto done;
7194         }
7195
7196         if (wrqu->rts.disabled)
7197                 value = priv->rts_threshold | RTS_DISABLED;
7198         else {
7199                 if (wrqu->rts.value < 1 || wrqu->rts.value > 2304) {
7200                         err = -EINVAL;
7201                         goto done;
7202                 }
7203                 value = wrqu->rts.value;
7204         }
7205
7206         err = ipw2100_set_rts_threshold(priv, value);
7207
7208         IPW_DEBUG_WX("SET RTS Threshold -> 0x%08X\n", value);
7209       done:
7210         mutex_unlock(&priv->action_mutex);
7211         return err;
7212 }
7213
7214 static int ipw2100_wx_get_rts(struct net_device *dev,
7215                               struct iw_request_info *info,
7216                               union iwreq_data *wrqu, char *extra)
7217 {
7218         /*
7219          * This can be called at any time.  No action lock required
7220          */
7221
7222         struct ipw2100_priv *priv = libipw_priv(dev);
7223
7224         wrqu->rts.value = priv->rts_threshold & ~RTS_DISABLED;
7225         wrqu->rts.fixed = 1;    /* no auto select */
7226
7227         /* If RTS is set to the default value, then it is disabled */
7228         wrqu->rts.disabled = (priv->rts_threshold & RTS_DISABLED) ? 1 : 0;
7229
7230         IPW_DEBUG_WX("GET RTS Threshold -> 0x%08X\n", wrqu->rts.value);
7231
7232         return 0;
7233 }
7234
7235 static int ipw2100_wx_set_txpow(struct net_device *dev,
7236                                 struct iw_request_info *info,
7237                                 union iwreq_data *wrqu, char *extra)
7238 {
7239         struct ipw2100_priv *priv = libipw_priv(dev);
7240         int err = 0, value;
7241
7242         if (ipw_radio_kill_sw(priv, wrqu->txpower.disabled))
7243                 return -EINPROGRESS;
7244
7245         if (priv->ieee->iw_mode != IW_MODE_ADHOC)
7246                 return 0;
7247
7248         if ((wrqu->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
7249                 return -EINVAL;
7250
7251         if (wrqu->txpower.fixed == 0)
7252                 value = IPW_TX_POWER_DEFAULT;
7253         else {
7254                 if (wrqu->txpower.value < IPW_TX_POWER_MIN_DBM ||
7255                     wrqu->txpower.value > IPW_TX_POWER_MAX_DBM)
7256                         return -EINVAL;
7257
7258                 value = wrqu->txpower.value;
7259         }
7260
7261         mutex_lock(&priv->action_mutex);
7262         if (!(priv->status & STATUS_INITIALIZED)) {
7263                 err = -EIO;
7264                 goto done;
7265         }
7266
7267         err = ipw2100_set_tx_power(priv, value);
7268
7269         IPW_DEBUG_WX("SET TX Power -> %d\n", value);
7270
7271       done:
7272         mutex_unlock(&priv->action_mutex);
7273         return err;
7274 }
7275
7276 static int ipw2100_wx_get_txpow(struct net_device *dev,
7277                                 struct iw_request_info *info,
7278                                 union iwreq_data *wrqu, char *extra)
7279 {
7280         /*
7281          * This can be called at any time.  No action lock required
7282          */
7283
7284         struct ipw2100_priv *priv = libipw_priv(dev);
7285
7286         wrqu->txpower.disabled = (priv->status & STATUS_RF_KILL_MASK) ? 1 : 0;
7287
7288         if (priv->tx_power == IPW_TX_POWER_DEFAULT) {
7289                 wrqu->txpower.fixed = 0;
7290                 wrqu->txpower.value = IPW_TX_POWER_MAX_DBM;
7291         } else {
7292                 wrqu->txpower.fixed = 1;
7293                 wrqu->txpower.value = priv->tx_power;
7294         }
7295
7296         wrqu->txpower.flags = IW_TXPOW_DBM;
7297
7298         IPW_DEBUG_WX("GET TX Power -> %d\n", wrqu->txpower.value);
7299
7300         return 0;
7301 }
7302
7303 static int ipw2100_wx_set_frag(struct net_device *dev,
7304                                struct iw_request_info *info,
7305                                union iwreq_data *wrqu, char *extra)
7306 {
7307         /*
7308          * This can be called at any time.  No action lock required
7309          */
7310
7311         struct ipw2100_priv *priv = libipw_priv(dev);
7312
7313         if (!wrqu->frag.fixed)
7314                 return -EINVAL;
7315
7316         if (wrqu->frag.disabled) {
7317                 priv->frag_threshold |= FRAG_DISABLED;
7318                 priv->ieee->fts = DEFAULT_FTS;
7319         } else {
7320                 if (wrqu->frag.value < MIN_FRAG_THRESHOLD ||
7321                     wrqu->frag.value > MAX_FRAG_THRESHOLD)
7322                         return -EINVAL;
7323
7324                 priv->ieee->fts = wrqu->frag.value & ~0x1;
7325                 priv->frag_threshold = priv->ieee->fts;
7326         }
7327
7328         IPW_DEBUG_WX("SET Frag Threshold -> %d\n", priv->ieee->fts);
7329
7330         return 0;
7331 }
7332
7333 static int ipw2100_wx_get_frag(struct net_device *dev,
7334                                struct iw_request_info *info,
7335                                union iwreq_data *wrqu, char *extra)
7336 {
7337         /*
7338          * This can be called at any time.  No action lock required
7339          */
7340
7341         struct ipw2100_priv *priv = libipw_priv(dev);
7342         wrqu->frag.value = priv->frag_threshold & ~FRAG_DISABLED;
7343         wrqu->frag.fixed = 0;   /* no auto select */
7344         wrqu->frag.disabled = (priv->frag_threshold & FRAG_DISABLED) ? 1 : 0;
7345
7346         IPW_DEBUG_WX("GET Frag Threshold -> %d\n", wrqu->frag.value);
7347
7348         return 0;
7349 }
7350
7351 static int ipw2100_wx_set_retry(struct net_device *dev,
7352                                 struct iw_request_info *info,
7353                                 union iwreq_data *wrqu, char *extra)
7354 {
7355         struct ipw2100_priv *priv = libipw_priv(dev);
7356         int err = 0;
7357
7358         if (wrqu->retry.flags & IW_RETRY_LIFETIME || wrqu->retry.disabled)
7359                 return -EINVAL;
7360
7361         if (!(wrqu->retry.flags & IW_RETRY_LIMIT))
7362                 return 0;
7363
7364         mutex_lock(&priv->action_mutex);
7365         if (!(priv->status & STATUS_INITIALIZED)) {
7366                 err = -EIO;
7367                 goto done;
7368         }
7369
7370         if (wrqu->retry.flags & IW_RETRY_SHORT) {
7371                 err = ipw2100_set_short_retry(priv, wrqu->retry.value);
7372                 IPW_DEBUG_WX("SET Short Retry Limit -> %d\n",
7373                              wrqu->retry.value);
7374                 goto done;
7375         }
7376
7377         if (wrqu->retry.flags & IW_RETRY_LONG) {
7378                 err = ipw2100_set_long_retry(priv, wrqu->retry.value);
7379                 IPW_DEBUG_WX("SET Long Retry Limit -> %d\n",
7380                              wrqu->retry.value);
7381                 goto done;
7382         }
7383
7384         err = ipw2100_set_short_retry(priv, wrqu->retry.value);
7385         if (!err)
7386                 err = ipw2100_set_long_retry(priv, wrqu->retry.value);
7387
7388         IPW_DEBUG_WX("SET Both Retry Limits -> %d\n", wrqu->retry.value);
7389
7390       done:
7391         mutex_unlock(&priv->action_mutex);
7392         return err;
7393 }
7394
7395 static int ipw2100_wx_get_retry(struct net_device *dev,
7396                                 struct iw_request_info *info,
7397                                 union iwreq_data *wrqu, char *extra)
7398 {
7399         /*
7400          * This can be called at any time.  No action lock required
7401          */
7402
7403         struct ipw2100_priv *priv = libipw_priv(dev);
7404
7405         wrqu->retry.disabled = 0;       /* can't be disabled */
7406
7407         if ((wrqu->retry.flags & IW_RETRY_TYPE) == IW_RETRY_LIFETIME)
7408                 return -EINVAL;
7409
7410         if (wrqu->retry.flags & IW_RETRY_LONG) {
7411                 wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
7412                 wrqu->retry.value = priv->long_retry_limit;
7413         } else {
7414                 wrqu->retry.flags =
7415                     (priv->short_retry_limit !=
7416                      priv->long_retry_limit) ?
7417                     IW_RETRY_LIMIT | IW_RETRY_SHORT : IW_RETRY_LIMIT;
7418
7419                 wrqu->retry.value = priv->short_retry_limit;
7420         }
7421
7422         IPW_DEBUG_WX("GET Retry -> %d\n", wrqu->retry.value);
7423
7424         return 0;
7425 }
7426
7427 static int ipw2100_wx_set_scan(struct net_device *dev,
7428                                struct iw_request_info *info,
7429                                union iwreq_data *wrqu, char *extra)
7430 {
7431         struct ipw2100_priv *priv = libipw_priv(dev);
7432         int err = 0;
7433
7434         mutex_lock(&priv->action_mutex);
7435         if (!(priv->status & STATUS_INITIALIZED)) {
7436                 err = -EIO;
7437                 goto done;
7438         }
7439
7440         IPW_DEBUG_WX("Initiating scan...\n");
7441
7442         priv->user_requested_scan = 1;
7443         if (ipw2100_set_scan_options(priv) || ipw2100_start_scan(priv)) {
7444                 IPW_DEBUG_WX("Start scan failed.\n");
7445
7446                 /* TODO: Mark a scan as pending so when hardware initialized
7447                  *       a scan starts */
7448         }
7449
7450       done:
7451         mutex_unlock(&priv->action_mutex);
7452         return err;
7453 }
7454
7455 static int ipw2100_wx_get_scan(struct net_device *dev,
7456                                struct iw_request_info *info,
7457                                union iwreq_data *wrqu, char *extra)
7458 {
7459         /*
7460          * This can be called at any time.  No action lock required
7461          */
7462
7463         struct ipw2100_priv *priv = libipw_priv(dev);
7464         return libipw_wx_get_scan(priv->ieee, info, wrqu, extra);
7465 }
7466
7467 /*
7468  * Implementation based on code in hostap-driver v0.1.3 hostap_ioctl.c
7469  */
7470 static int ipw2100_wx_set_encode(struct net_device *dev,
7471                                  struct iw_request_info *info,
7472                                  union iwreq_data *wrqu, char *key)
7473 {
7474         /*
7475          * No check of STATUS_INITIALIZED required
7476          */
7477
7478         struct ipw2100_priv *priv = libipw_priv(dev);
7479         return libipw_wx_set_encode(priv->ieee, info, wrqu, key);
7480 }
7481
7482 static int ipw2100_wx_get_encode(struct net_device *dev,
7483                                  struct iw_request_info *info,
7484                                  union iwreq_data *wrqu, char *key)
7485 {
7486         /*
7487          * This can be called at any time.  No action lock required
7488          */
7489
7490         struct ipw2100_priv *priv = libipw_priv(dev);
7491         return libipw_wx_get_encode(priv->ieee, info, wrqu, key);
7492 }
7493
7494 static int ipw2100_wx_set_power(struct net_device *dev,
7495                                 struct iw_request_info *info,
7496                                 union iwreq_data *wrqu, char *extra)
7497 {
7498         struct ipw2100_priv *priv = libipw_priv(dev);
7499         int err = 0;
7500
7501         mutex_lock(&priv->action_mutex);
7502         if (!(priv->status & STATUS_INITIALIZED)) {
7503                 err = -EIO;
7504                 goto done;
7505         }
7506
7507         if (wrqu->power.disabled) {
7508                 priv->power_mode = IPW_POWER_LEVEL(priv->power_mode);
7509                 err = ipw2100_set_power_mode(priv, IPW_POWER_MODE_CAM);
7510                 IPW_DEBUG_WX("SET Power Management Mode -> off\n");
7511                 goto done;
7512         }
7513
7514         switch (wrqu->power.flags & IW_POWER_MODE) {
7515         case IW_POWER_ON:       /* If not specified */
7516         case IW_POWER_MODE:     /* If set all mask */
7517         case IW_POWER_ALL_R:    /* If explicitly state all */
7518                 break;
7519         default:                /* Otherwise we don't support it */
7520                 IPW_DEBUG_WX("SET PM Mode: %X not supported.\n",
7521                              wrqu->power.flags);
7522                 err = -EOPNOTSUPP;
7523                 goto done;
7524         }
7525
7526         /* If the user hasn't specified a power management mode yet, default
7527          * to BATTERY */
7528         priv->power_mode = IPW_POWER_ENABLED | priv->power_mode;
7529         err = ipw2100_set_power_mode(priv, IPW_POWER_LEVEL(priv->power_mode));
7530
7531         IPW_DEBUG_WX("SET Power Management Mode -> 0x%02X\n", priv->power_mode);
7532
7533       done:
7534         mutex_unlock(&priv->action_mutex);
7535         return err;
7536
7537 }
7538
7539 static int ipw2100_wx_get_power(struct net_device *dev,
7540                                 struct iw_request_info *info,
7541                                 union iwreq_data *wrqu, char *extra)
7542 {
7543         /*
7544          * This can be called at any time.  No action lock required
7545          */
7546
7547         struct ipw2100_priv *priv = libipw_priv(dev);
7548
7549         if (!(priv->power_mode & IPW_POWER_ENABLED))
7550                 wrqu->power.disabled = 1;
7551         else {
7552                 wrqu->power.disabled = 0;
7553                 wrqu->power.flags = 0;
7554         }
7555
7556         IPW_DEBUG_WX("GET Power Management Mode -> %02X\n", priv->power_mode);
7557
7558         return 0;
7559 }
7560
7561 /*
7562  * WE-18 WPA support
7563  */
7564
7565 /* SIOCSIWGENIE */
7566 static int ipw2100_wx_set_genie(struct net_device *dev,
7567                                 struct iw_request_info *info,
7568                                 union iwreq_data *wrqu, char *extra)
7569 {
7570
7571         struct ipw2100_priv *priv = libipw_priv(dev);
7572         struct libipw_device *ieee = priv->ieee;
7573         u8 *buf;
7574
7575         if (!ieee->wpa_enabled)
7576                 return -EOPNOTSUPP;
7577
7578         if (wrqu->data.length > MAX_WPA_IE_LEN ||
7579             (wrqu->data.length && extra == NULL))
7580                 return -EINVAL;
7581
7582         if (wrqu->data.length) {
7583                 buf = kmemdup(extra, wrqu->data.length, GFP_KERNEL);
7584                 if (buf == NULL)
7585                         return -ENOMEM;
7586
7587                 kfree(ieee->wpa_ie);
7588                 ieee->wpa_ie = buf;
7589                 ieee->wpa_ie_len = wrqu->data.length;
7590         } else {
7591                 kfree(ieee->wpa_ie);
7592                 ieee->wpa_ie = NULL;
7593                 ieee->wpa_ie_len = 0;
7594         }
7595
7596         ipw2100_wpa_assoc_frame(priv, ieee->wpa_ie, ieee->wpa_ie_len);
7597
7598         return 0;
7599 }
7600
7601 /* SIOCGIWGENIE */
7602 static int ipw2100_wx_get_genie(struct net_device *dev,
7603                                 struct iw_request_info *info,
7604                                 union iwreq_data *wrqu, char *extra)
7605 {
7606         struct ipw2100_priv *priv = libipw_priv(dev);
7607         struct libipw_device *ieee = priv->ieee;
7608
7609         if (ieee->wpa_ie_len == 0 || ieee->wpa_ie == NULL) {
7610                 wrqu->data.length = 0;
7611                 return 0;
7612         }
7613
7614         if (wrqu->data.length < ieee->wpa_ie_len)
7615                 return -E2BIG;
7616
7617         wrqu->data.length = ieee->wpa_ie_len;
7618         memcpy(extra, ieee->wpa_ie, ieee->wpa_ie_len);
7619
7620         return 0;
7621 }
7622
7623 /* SIOCSIWAUTH */
7624 static int ipw2100_wx_set_auth(struct net_device *dev,
7625                                struct iw_request_info *info,
7626                                union iwreq_data *wrqu, char *extra)
7627 {
7628         struct ipw2100_priv *priv = libipw_priv(dev);
7629         struct libipw_device *ieee = priv->ieee;
7630         struct iw_param *param = &wrqu->param;
7631         struct lib80211_crypt_data *crypt;
7632         unsigned long flags;
7633         int ret = 0;
7634
7635         switch (param->flags & IW_AUTH_INDEX) {
7636         case IW_AUTH_WPA_VERSION:
7637         case IW_AUTH_CIPHER_PAIRWISE:
7638         case IW_AUTH_CIPHER_GROUP:
7639         case IW_AUTH_KEY_MGMT:
7640                 /*
7641                  * ipw2200 does not use these parameters
7642                  */
7643                 break;
7644
7645         case IW_AUTH_TKIP_COUNTERMEASURES:
7646                 crypt = priv->ieee->crypt_info.crypt[priv->ieee->crypt_info.tx_keyidx];
7647                 if (!crypt || !crypt->ops->set_flags || !crypt->ops->get_flags)
7648                         break;
7649
7650                 flags = crypt->ops->get_flags(crypt->priv);
7651
7652                 if (param->value)
7653                         flags |= IEEE80211_CRYPTO_TKIP_COUNTERMEASURES;
7654                 else
7655                         flags &= ~IEEE80211_CRYPTO_TKIP_COUNTERMEASURES;
7656
7657                 crypt->ops->set_flags(flags, crypt->priv);
7658
7659                 break;
7660
7661         case IW_AUTH_DROP_UNENCRYPTED:{
7662                         /* HACK:
7663                          *
7664                          * wpa_supplicant calls set_wpa_enabled when the driver
7665                          * is loaded and unloaded, regardless of if WPA is being
7666                          * used.  No other calls are made which can be used to
7667                          * determine if encryption will be used or not prior to
7668                          * association being expected.  If encryption is not being
7669                          * used, drop_unencrypted is set to false, else true -- we
7670                          * can use this to determine if the CAP_PRIVACY_ON bit should
7671                          * be set.
7672                          */
7673                         struct libipw_security sec = {
7674                                 .flags = SEC_ENABLED,
7675                                 .enabled = param->value,
7676                         };
7677                         priv->ieee->drop_unencrypted = param->value;
7678                         /* We only change SEC_LEVEL for open mode. Others
7679                          * are set by ipw_wpa_set_encryption.
7680                          */
7681                         if (!param->value) {
7682                                 sec.flags |= SEC_LEVEL;
7683                                 sec.level = SEC_LEVEL_0;
7684                         } else {
7685                                 sec.flags |= SEC_LEVEL;
7686                                 sec.level = SEC_LEVEL_1;
7687                         }
7688                         if (priv->ieee->set_security)
7689                                 priv->ieee->set_security(priv->ieee->dev, &sec);
7690                         break;
7691                 }
7692
7693         case IW_AUTH_80211_AUTH_ALG:
7694                 ret = ipw2100_wpa_set_auth_algs(priv, param->value);
7695                 break;
7696
7697         case IW_AUTH_WPA_ENABLED:
7698                 ret = ipw2100_wpa_enable(priv, param->value);
7699                 break;
7700
7701         case IW_AUTH_RX_UNENCRYPTED_EAPOL:
7702                 ieee->ieee802_1x = param->value;
7703                 break;
7704
7705                 //case IW_AUTH_ROAMING_CONTROL:
7706         case IW_AUTH_PRIVACY_INVOKED:
7707                 ieee->privacy_invoked = param->value;
7708                 break;
7709
7710         default:
7711                 return -EOPNOTSUPP;
7712         }
7713         return ret;
7714 }
7715
7716 /* SIOCGIWAUTH */
7717 static int ipw2100_wx_get_auth(struct net_device *dev,
7718                                struct iw_request_info *info,
7719                                union iwreq_data *wrqu, char *extra)
7720 {
7721         struct ipw2100_priv *priv = libipw_priv(dev);
7722         struct libipw_device *ieee = priv->ieee;
7723         struct lib80211_crypt_data *crypt;
7724         struct iw_param *param = &wrqu->param;
7725         int ret = 0;
7726
7727         switch (param->flags & IW_AUTH_INDEX) {
7728         case IW_AUTH_WPA_VERSION:
7729         case IW_AUTH_CIPHER_PAIRWISE:
7730         case IW_AUTH_CIPHER_GROUP:
7731         case IW_AUTH_KEY_MGMT:
7732                 /*
7733                  * wpa_supplicant will control these internally
7734                  */
7735                 ret = -EOPNOTSUPP;
7736                 break;
7737
7738         case IW_AUTH_TKIP_COUNTERMEASURES:
7739                 crypt = priv->ieee->crypt_info.crypt[priv->ieee->crypt_info.tx_keyidx];
7740                 if (!crypt || !crypt->ops->get_flags) {
7741                         IPW_DEBUG_WARNING("Can't get TKIP countermeasures: "
7742                                           "crypt not set!\n");
7743                         break;
7744                 }
7745
7746                 param->value = (crypt->ops->get_flags(crypt->priv) &
7747                                 IEEE80211_CRYPTO_TKIP_COUNTERMEASURES) ? 1 : 0;
7748
7749                 break;
7750
7751         case IW_AUTH_DROP_UNENCRYPTED:
7752                 param->value = ieee->drop_unencrypted;
7753                 break;
7754
7755         case IW_AUTH_80211_AUTH_ALG:
7756                 param->value = priv->ieee->sec.auth_mode;
7757                 break;
7758
7759         case IW_AUTH_WPA_ENABLED:
7760                 param->value = ieee->wpa_enabled;
7761                 break;
7762
7763         case IW_AUTH_RX_UNENCRYPTED_EAPOL:
7764                 param->value = ieee->ieee802_1x;
7765                 break;
7766
7767         case IW_AUTH_ROAMING_CONTROL:
7768         case IW_AUTH_PRIVACY_INVOKED:
7769                 param->value = ieee->privacy_invoked;
7770                 break;
7771
7772         default:
7773                 return -EOPNOTSUPP;
7774         }
7775         return 0;
7776 }
7777
7778 /* SIOCSIWENCODEEXT */
7779 static int ipw2100_wx_set_encodeext(struct net_device *dev,
7780                                     struct iw_request_info *info,
7781                                     union iwreq_data *wrqu, char *extra)
7782 {
7783         struct ipw2100_priv *priv = libipw_priv(dev);
7784         return libipw_wx_set_encodeext(priv->ieee, info, wrqu, extra);
7785 }
7786
7787 /* SIOCGIWENCODEEXT */
7788 static int ipw2100_wx_get_encodeext(struct net_device *dev,
7789                                     struct iw_request_info *info,
7790                                     union iwreq_data *wrqu, char *extra)
7791 {
7792         struct ipw2100_priv *priv = libipw_priv(dev);
7793         return libipw_wx_get_encodeext(priv->ieee, info, wrqu, extra);
7794 }
7795
7796 /* SIOCSIWMLME */
7797 static int ipw2100_wx_set_mlme(struct net_device *dev,
7798                                struct iw_request_info *info,
7799                                union iwreq_data *wrqu, char *extra)
7800 {
7801         struct ipw2100_priv *priv = libipw_priv(dev);
7802         struct iw_mlme *mlme = (struct iw_mlme *)extra;
7803         __le16 reason;
7804
7805         reason = cpu_to_le16(mlme->reason_code);
7806
7807         switch (mlme->cmd) {
7808         case IW_MLME_DEAUTH:
7809                 // silently ignore
7810                 break;
7811
7812         case IW_MLME_DISASSOC:
7813                 ipw2100_disassociate_bssid(priv);
7814                 break;
7815
7816         default:
7817                 return -EOPNOTSUPP;
7818         }
7819         return 0;
7820 }
7821
7822 /*
7823  *
7824  * IWPRIV handlers
7825  *
7826  */
7827 #ifdef CONFIG_IPW2100_MONITOR
7828 static int ipw2100_wx_set_promisc(struct net_device *dev,
7829                                   struct iw_request_info *info,
7830                                   union iwreq_data *wrqu, char *extra)
7831 {
7832         struct ipw2100_priv *priv = libipw_priv(dev);
7833         int *parms = (int *)extra;
7834         int enable = (parms[0] > 0);
7835         int err = 0;
7836
7837         mutex_lock(&priv->action_mutex);
7838         if (!(priv->status & STATUS_INITIALIZED)) {
7839                 err = -EIO;
7840                 goto done;
7841         }
7842
7843         if (enable) {
7844                 if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
7845                         err = ipw2100_set_channel(priv, parms[1], 0);
7846                         goto done;
7847                 }
7848                 priv->channel = parms[1];
7849                 err = ipw2100_switch_mode(priv, IW_MODE_MONITOR);
7850         } else {
7851                 if (priv->ieee->iw_mode == IW_MODE_MONITOR)
7852                         err = ipw2100_switch_mode(priv, priv->last_mode);
7853         }
7854       done:
7855         mutex_unlock(&priv->action_mutex);
7856         return err;
7857 }
7858
7859 static int ipw2100_wx_reset(struct net_device *dev,
7860                             struct iw_request_info *info,
7861                             union iwreq_data *wrqu, char *extra)
7862 {
7863         struct ipw2100_priv *priv = libipw_priv(dev);
7864         if (priv->status & STATUS_INITIALIZED)
7865                 schedule_reset(priv);
7866         return 0;
7867 }
7868
7869 #endif
7870
7871 static int ipw2100_wx_set_powermode(struct net_device *dev,
7872                                     struct iw_request_info *info,
7873                                     union iwreq_data *wrqu, char *extra)
7874 {
7875         struct ipw2100_priv *priv = libipw_priv(dev);
7876         int err = 0, mode = *(int *)extra;
7877
7878         mutex_lock(&priv->action_mutex);
7879         if (!(priv->status & STATUS_INITIALIZED)) {
7880                 err = -EIO;
7881                 goto done;
7882         }
7883
7884         if ((mode < 0) || (mode > POWER_MODES))
7885                 mode = IPW_POWER_AUTO;
7886
7887         if (IPW_POWER_LEVEL(priv->power_mode) != mode)
7888                 err = ipw2100_set_power_mode(priv, mode);
7889       done:
7890         mutex_unlock(&priv->action_mutex);
7891         return err;
7892 }
7893
7894 #define MAX_POWER_STRING 80
7895 static int ipw2100_wx_get_powermode(struct net_device *dev,
7896                                     struct iw_request_info *info,
7897                                     union iwreq_data *wrqu, char *extra)
7898 {
7899         /*
7900          * This can be called at any time.  No action lock required
7901          */
7902
7903         struct ipw2100_priv *priv = libipw_priv(dev);
7904         int level = IPW_POWER_LEVEL(priv->power_mode);
7905         s32 timeout, period;
7906
7907         if (!(priv->power_mode & IPW_POWER_ENABLED)) {
7908                 snprintf(extra, MAX_POWER_STRING,
7909                          "Power save level: %d (Off)", level);
7910         } else {
7911                 switch (level) {
7912                 case IPW_POWER_MODE_CAM:
7913                         snprintf(extra, MAX_POWER_STRING,
7914                                  "Power save level: %d (None)", level);
7915                         break;
7916                 case IPW_POWER_AUTO:
7917                         snprintf(extra, MAX_POWER_STRING,
7918                                  "Power save level: %d (Auto)", level);
7919                         break;
7920                 default:
7921                         timeout = timeout_duration[level - 1] / 1000;
7922                         period = period_duration[level - 1] / 1000;
7923                         snprintf(extra, MAX_POWER_STRING,
7924                                  "Power save level: %d "
7925                                  "(Timeout %dms, Period %dms)",
7926                                  level, timeout, period);
7927                 }
7928         }
7929
7930         wrqu->data.length = strlen(extra) + 1;
7931
7932         return 0;
7933 }
7934
7935 static int ipw2100_wx_set_preamble(struct net_device *dev,
7936                                    struct iw_request_info *info,
7937                                    union iwreq_data *wrqu, char *extra)
7938 {
7939         struct ipw2100_priv *priv = libipw_priv(dev);
7940         int err, mode = *(int *)extra;
7941
7942         mutex_lock(&priv->action_mutex);
7943         if (!(priv->status & STATUS_INITIALIZED)) {
7944                 err = -EIO;
7945                 goto done;
7946         }
7947
7948         if (mode == 1)
7949                 priv->config |= CFG_LONG_PREAMBLE;
7950         else if (mode == 0)
7951                 priv->config &= ~CFG_LONG_PREAMBLE;
7952         else {
7953                 err = -EINVAL;
7954                 goto done;
7955         }
7956
7957         err = ipw2100_system_config(priv, 0);
7958
7959       done:
7960         mutex_unlock(&priv->action_mutex);
7961         return err;
7962 }
7963
7964 static int ipw2100_wx_get_preamble(struct net_device *dev,
7965                                    struct iw_request_info *info,
7966                                    union iwreq_data *wrqu, char *extra)
7967 {
7968         /*
7969          * This can be called at any time.  No action lock required
7970          */
7971
7972         struct ipw2100_priv *priv = libipw_priv(dev);
7973
7974         if (priv->config & CFG_LONG_PREAMBLE)
7975                 snprintf(wrqu->name, IFNAMSIZ, "long (1)");
7976         else
7977                 snprintf(wrqu->name, IFNAMSIZ, "auto (0)");
7978
7979         return 0;
7980 }
7981
7982 #ifdef CONFIG_IPW2100_MONITOR
7983 static int ipw2100_wx_set_crc_check(struct net_device *dev,
7984                                     struct iw_request_info *info,
7985                                     union iwreq_data *wrqu, char *extra)
7986 {
7987         struct ipw2100_priv *priv = libipw_priv(dev);
7988         int err, mode = *(int *)extra;
7989
7990         mutex_lock(&priv->action_mutex);
7991         if (!(priv->status & STATUS_INITIALIZED)) {
7992                 err = -EIO;
7993                 goto done;
7994         }
7995
7996         if (mode == 1)
7997                 priv->config |= CFG_CRC_CHECK;
7998         else if (mode == 0)
7999                 priv->config &= ~CFG_CRC_CHECK;
8000         else {
8001                 err = -EINVAL;
8002                 goto done;
8003         }
8004         err = 0;
8005
8006       done:
8007         mutex_unlock(&priv->action_mutex);
8008         return err;
8009 }
8010
8011 static int ipw2100_wx_get_crc_check(struct net_device *dev,
8012                                     struct iw_request_info *info,
8013                                     union iwreq_data *wrqu, char *extra)
8014 {
8015         /*
8016          * This can be called at any time.  No action lock required
8017          */
8018
8019         struct ipw2100_priv *priv = libipw_priv(dev);
8020
8021         if (priv->config & CFG_CRC_CHECK)
8022                 snprintf(wrqu->name, IFNAMSIZ, "CRC checked (1)");
8023         else
8024                 snprintf(wrqu->name, IFNAMSIZ, "CRC ignored (0)");
8025
8026         return 0;
8027 }
8028 #endif                          /* CONFIG_IPW2100_MONITOR */
8029
8030 static iw_handler ipw2100_wx_handlers[] = {
8031         IW_HANDLER(SIOCGIWNAME, ipw2100_wx_get_name),
8032         IW_HANDLER(SIOCSIWFREQ, ipw2100_wx_set_freq),
8033         IW_HANDLER(SIOCGIWFREQ, ipw2100_wx_get_freq),
8034         IW_HANDLER(SIOCSIWMODE, ipw2100_wx_set_mode),
8035         IW_HANDLER(SIOCGIWMODE, ipw2100_wx_get_mode),
8036         IW_HANDLER(SIOCGIWRANGE, ipw2100_wx_get_range),
8037         IW_HANDLER(SIOCSIWAP, ipw2100_wx_set_wap),
8038         IW_HANDLER(SIOCGIWAP, ipw2100_wx_get_wap),
8039         IW_HANDLER(SIOCSIWMLME, ipw2100_wx_set_mlme),
8040         IW_HANDLER(SIOCSIWSCAN, ipw2100_wx_set_scan),
8041         IW_HANDLER(SIOCGIWSCAN, ipw2100_wx_get_scan),
8042         IW_HANDLER(SIOCSIWESSID, ipw2100_wx_set_essid),
8043         IW_HANDLER(SIOCGIWESSID, ipw2100_wx_get_essid),
8044         IW_HANDLER(SIOCSIWNICKN, ipw2100_wx_set_nick),
8045         IW_HANDLER(SIOCGIWNICKN, ipw2100_wx_get_nick),
8046         IW_HANDLER(SIOCSIWRATE, ipw2100_wx_set_rate),
8047         IW_HANDLER(SIOCGIWRATE, ipw2100_wx_get_rate),
8048         IW_HANDLER(SIOCSIWRTS, ipw2100_wx_set_rts),
8049         IW_HANDLER(SIOCGIWRTS, ipw2100_wx_get_rts),
8050         IW_HANDLER(SIOCSIWFRAG, ipw2100_wx_set_frag),
8051         IW_HANDLER(SIOCGIWFRAG, ipw2100_wx_get_frag),
8052         IW_HANDLER(SIOCSIWTXPOW, ipw2100_wx_set_txpow),
8053         IW_HANDLER(SIOCGIWTXPOW, ipw2100_wx_get_txpow),
8054         IW_HANDLER(SIOCSIWRETRY, ipw2100_wx_set_retry),
8055         IW_HANDLER(SIOCGIWRETRY, ipw2100_wx_get_retry),
8056         IW_HANDLER(SIOCSIWENCODE, ipw2100_wx_set_encode),
8057         IW_HANDLER(SIOCGIWENCODE, ipw2100_wx_get_encode),
8058         IW_HANDLER(SIOCSIWPOWER, ipw2100_wx_set_power),
8059         IW_HANDLER(SIOCGIWPOWER, ipw2100_wx_get_power),
8060         IW_HANDLER(SIOCSIWGENIE, ipw2100_wx_set_genie),
8061         IW_HANDLER(SIOCGIWGENIE, ipw2100_wx_get_genie),
8062         IW_HANDLER(SIOCSIWAUTH, ipw2100_wx_set_auth),
8063         IW_HANDLER(SIOCGIWAUTH, ipw2100_wx_get_auth),
8064         IW_HANDLER(SIOCSIWENCODEEXT, ipw2100_wx_set_encodeext),
8065         IW_HANDLER(SIOCGIWENCODEEXT, ipw2100_wx_get_encodeext),
8066 };
8067
8068 #define IPW2100_PRIV_SET_MONITOR        SIOCIWFIRSTPRIV
8069 #define IPW2100_PRIV_RESET              SIOCIWFIRSTPRIV+1
8070 #define IPW2100_PRIV_SET_POWER          SIOCIWFIRSTPRIV+2
8071 #define IPW2100_PRIV_GET_POWER          SIOCIWFIRSTPRIV+3
8072 #define IPW2100_PRIV_SET_LONGPREAMBLE   SIOCIWFIRSTPRIV+4
8073 #define IPW2100_PRIV_GET_LONGPREAMBLE   SIOCIWFIRSTPRIV+5
8074 #define IPW2100_PRIV_SET_CRC_CHECK      SIOCIWFIRSTPRIV+6
8075 #define IPW2100_PRIV_GET_CRC_CHECK      SIOCIWFIRSTPRIV+7
8076
8077 static const struct iw_priv_args ipw2100_private_args[] = {
8078
8079 #ifdef CONFIG_IPW2100_MONITOR
8080         {
8081          IPW2100_PRIV_SET_MONITOR,
8082          IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2, 0, "monitor"},
8083         {
8084          IPW2100_PRIV_RESET,
8085          IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 0, 0, "reset"},
8086 #endif                          /* CONFIG_IPW2100_MONITOR */
8087
8088         {
8089          IPW2100_PRIV_SET_POWER,
8090          IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "set_power"},
8091         {
8092          IPW2100_PRIV_GET_POWER,
8093          0, IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | MAX_POWER_STRING,
8094          "get_power"},
8095         {
8096          IPW2100_PRIV_SET_LONGPREAMBLE,
8097          IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "set_preamble"},
8098         {
8099          IPW2100_PRIV_GET_LONGPREAMBLE,
8100          0, IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | IFNAMSIZ, "get_preamble"},
8101 #ifdef CONFIG_IPW2100_MONITOR
8102         {
8103          IPW2100_PRIV_SET_CRC_CHECK,
8104          IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "set_crc_check"},
8105         {
8106          IPW2100_PRIV_GET_CRC_CHECK,
8107          0, IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | IFNAMSIZ, "get_crc_check"},
8108 #endif                          /* CONFIG_IPW2100_MONITOR */
8109 };
8110
8111 static iw_handler ipw2100_private_handler[] = {
8112 #ifdef CONFIG_IPW2100_MONITOR
8113         ipw2100_wx_set_promisc,
8114         ipw2100_wx_reset,
8115 #else                           /* CONFIG_IPW2100_MONITOR */
8116         NULL,
8117         NULL,
8118 #endif                          /* CONFIG_IPW2100_MONITOR */
8119         ipw2100_wx_set_powermode,
8120         ipw2100_wx_get_powermode,
8121         ipw2100_wx_set_preamble,
8122         ipw2100_wx_get_preamble,
8123 #ifdef CONFIG_IPW2100_MONITOR
8124         ipw2100_wx_set_crc_check,
8125         ipw2100_wx_get_crc_check,
8126 #else                           /* CONFIG_IPW2100_MONITOR */
8127         NULL,
8128         NULL,
8129 #endif                          /* CONFIG_IPW2100_MONITOR */
8130 };
8131
8132 /*
8133  * Get wireless statistics.
8134  * Called by /proc/net/wireless
8135  * Also called by SIOCGIWSTATS
8136  */
8137 static struct iw_statistics *ipw2100_wx_wireless_stats(struct net_device *dev)
8138 {
8139         enum {
8140                 POOR = 30,
8141                 FAIR = 60,
8142                 GOOD = 80,
8143                 VERY_GOOD = 90,
8144                 EXCELLENT = 95,
8145                 PERFECT = 100
8146         };
8147         int rssi_qual;
8148         int tx_qual;
8149         int beacon_qual;
8150         int quality;
8151
8152         struct ipw2100_priv *priv = libipw_priv(dev);
8153         struct iw_statistics *wstats;
8154         u32 rssi, tx_retries, missed_beacons, tx_failures;
8155         u32 ord_len = sizeof(u32);
8156
8157         if (!priv)
8158                 return (struct iw_statistics *)NULL;
8159
8160         wstats = &priv->wstats;
8161
8162         /* if hw is disabled, then ipw2100_get_ordinal() can't be called.
8163          * ipw2100_wx_wireless_stats seems to be called before fw is
8164          * initialized.  STATUS_ASSOCIATED will only be set if the hw is up
8165          * and associated; if not associcated, the values are all meaningless
8166          * anyway, so set them all to NULL and INVALID */
8167         if (!(priv->status & STATUS_ASSOCIATED)) {
8168                 wstats->miss.beacon = 0;
8169                 wstats->discard.retries = 0;
8170                 wstats->qual.qual = 0;
8171                 wstats->qual.level = 0;
8172                 wstats->qual.noise = 0;
8173                 wstats->qual.updated = 7;
8174                 wstats->qual.updated |= IW_QUAL_NOISE_INVALID |
8175                     IW_QUAL_QUAL_INVALID | IW_QUAL_LEVEL_INVALID;
8176                 return wstats;
8177         }
8178
8179         if (ipw2100_get_ordinal(priv, IPW_ORD_STAT_PERCENT_MISSED_BCNS,
8180                                 &missed_beacons, &ord_len))
8181                 goto fail_get_ordinal;
8182
8183         /* If we don't have a connection the quality and level is 0 */
8184         if (!(priv->status & STATUS_ASSOCIATED)) {
8185                 wstats->qual.qual = 0;
8186                 wstats->qual.level = 0;
8187         } else {
8188                 if (ipw2100_get_ordinal(priv, IPW_ORD_RSSI_AVG_CURR,
8189                                         &rssi, &ord_len))
8190                         goto fail_get_ordinal;
8191                 wstats->qual.level = rssi + IPW2100_RSSI_TO_DBM;
8192                 if (rssi < 10)
8193                         rssi_qual = rssi * POOR / 10;
8194                 else if (rssi < 15)
8195                         rssi_qual = (rssi - 10) * (FAIR - POOR) / 5 + POOR;
8196                 else if (rssi < 20)
8197                         rssi_qual = (rssi - 15) * (GOOD - FAIR) / 5 + FAIR;
8198                 else if (rssi < 30)
8199                         rssi_qual = (rssi - 20) * (VERY_GOOD - GOOD) /
8200                             10 + GOOD;
8201                 else
8202                         rssi_qual = (rssi - 30) * (PERFECT - VERY_GOOD) /
8203                             10 + VERY_GOOD;
8204
8205                 if (ipw2100_get_ordinal(priv, IPW_ORD_STAT_PERCENT_RETRIES,
8206                                         &tx_retries, &ord_len))
8207                         goto fail_get_ordinal;
8208
8209                 if (tx_retries > 75)
8210                         tx_qual = (90 - tx_retries) * POOR / 15;
8211                 else if (tx_retries > 70)
8212                         tx_qual = (75 - tx_retries) * (FAIR - POOR) / 5 + POOR;
8213                 else if (tx_retries > 65)
8214                         tx_qual = (70 - tx_retries) * (GOOD - FAIR) / 5 + FAIR;
8215                 else if (tx_retries > 50)
8216                         tx_qual = (65 - tx_retries) * (VERY_GOOD - GOOD) /
8217                             15 + GOOD;
8218                 else
8219                         tx_qual = (50 - tx_retries) *
8220                             (PERFECT - VERY_GOOD) / 50 + VERY_GOOD;
8221
8222                 if (missed_beacons > 50)
8223                         beacon_qual = (60 - missed_beacons) * POOR / 10;
8224                 else if (missed_beacons > 40)
8225                         beacon_qual = (50 - missed_beacons) * (FAIR - POOR) /
8226                             10 + POOR;
8227                 else if (missed_beacons > 32)
8228                         beacon_qual = (40 - missed_beacons) * (GOOD - FAIR) /
8229                             18 + FAIR;
8230                 else if (missed_beacons > 20)
8231                         beacon_qual = (32 - missed_beacons) *
8232                             (VERY_GOOD - GOOD) / 20 + GOOD;
8233                 else
8234                         beacon_qual = (20 - missed_beacons) *
8235                             (PERFECT - VERY_GOOD) / 20 + VERY_GOOD;
8236
8237                 quality = min(tx_qual, rssi_qual);
8238                 quality = min(beacon_qual, quality);
8239
8240 #ifdef CONFIG_IPW2100_DEBUG
8241                 if (beacon_qual == quality)
8242                         IPW_DEBUG_WX("Quality clamped by Missed Beacons\n");
8243                 else if (tx_qual == quality)
8244                         IPW_DEBUG_WX("Quality clamped by Tx Retries\n");
8245                 else if (quality != 100)
8246                         IPW_DEBUG_WX("Quality clamped by Signal Strength\n");
8247                 else
8248                         IPW_DEBUG_WX("Quality not clamped.\n");
8249 #endif
8250
8251                 wstats->qual.qual = quality;
8252                 wstats->qual.level = rssi + IPW2100_RSSI_TO_DBM;
8253         }
8254
8255         wstats->qual.noise = 0;
8256         wstats->qual.updated = 7;
8257         wstats->qual.updated |= IW_QUAL_NOISE_INVALID;
8258
8259         /* FIXME: this is percent and not a # */
8260         wstats->miss.beacon = missed_beacons;
8261
8262         if (ipw2100_get_ordinal(priv, IPW_ORD_STAT_TX_FAILURES,
8263                                 &tx_failures, &ord_len))
8264                 goto fail_get_ordinal;
8265         wstats->discard.retries = tx_failures;
8266
8267         return wstats;
8268
8269       fail_get_ordinal:
8270         IPW_DEBUG_WX("failed querying ordinals.\n");
8271
8272         return (struct iw_statistics *)NULL;
8273 }
8274
8275 static const struct iw_handler_def ipw2100_wx_handler_def = {
8276         .standard = ipw2100_wx_handlers,
8277         .num_standard = ARRAY_SIZE(ipw2100_wx_handlers),
8278         .num_private = ARRAY_SIZE(ipw2100_private_handler),
8279         .num_private_args = ARRAY_SIZE(ipw2100_private_args),
8280         .private = (iw_handler *) ipw2100_private_handler,
8281         .private_args = (struct iw_priv_args *)ipw2100_private_args,
8282         .get_wireless_stats = ipw2100_wx_wireless_stats,
8283 };
8284
8285 static void ipw2100_wx_event_work(struct work_struct *work)
8286 {
8287         struct ipw2100_priv *priv =
8288                 container_of(work, struct ipw2100_priv, wx_event_work.work);
8289         union iwreq_data wrqu;
8290         unsigned int len = ETH_ALEN;
8291
8292         if (priv->status & STATUS_STOPPING)
8293                 return;
8294
8295         mutex_lock(&priv->action_mutex);
8296
8297         IPW_DEBUG_WX("enter\n");
8298
8299         mutex_unlock(&priv->action_mutex);
8300
8301         wrqu.ap_addr.sa_family = ARPHRD_ETHER;
8302
8303         /* Fetch BSSID from the hardware */
8304         if (!(priv->status & (STATUS_ASSOCIATING | STATUS_ASSOCIATED)) ||
8305             priv->status & STATUS_RF_KILL_MASK ||
8306             ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_AP_BSSID,
8307                                 &priv->bssid, &len)) {
8308                 eth_zero_addr(wrqu.ap_addr.sa_data);
8309         } else {
8310                 /* We now have the BSSID, so can finish setting to the full
8311                  * associated state */
8312                 memcpy(wrqu.ap_addr.sa_data, priv->bssid, ETH_ALEN);
8313                 memcpy(priv->ieee->bssid, priv->bssid, ETH_ALEN);
8314                 priv->status &= ~STATUS_ASSOCIATING;
8315                 priv->status |= STATUS_ASSOCIATED;
8316                 netif_carrier_on(priv->net_dev);
8317                 netif_wake_queue(priv->net_dev);
8318         }
8319
8320         if (!(priv->status & STATUS_ASSOCIATED)) {
8321                 IPW_DEBUG_WX("Configuring ESSID\n");
8322                 mutex_lock(&priv->action_mutex);
8323                 /* This is a disassociation event, so kick the firmware to
8324                  * look for another AP */
8325                 if (priv->config & CFG_STATIC_ESSID)
8326                         ipw2100_set_essid(priv, priv->essid, priv->essid_len,
8327                                           0);
8328                 else
8329                         ipw2100_set_essid(priv, NULL, 0, 0);
8330                 mutex_unlock(&priv->action_mutex);
8331         }
8332
8333         wireless_send_event(priv->net_dev, SIOCGIWAP, &wrqu, NULL);
8334 }
8335
8336 #define IPW2100_FW_MAJOR_VERSION 1
8337 #define IPW2100_FW_MINOR_VERSION 3
8338
8339 #define IPW2100_FW_MINOR(x) ((x & 0xff) >> 8)
8340 #define IPW2100_FW_MAJOR(x) (x & 0xff)
8341
8342 #define IPW2100_FW_VERSION ((IPW2100_FW_MINOR_VERSION << 8) | \
8343                              IPW2100_FW_MAJOR_VERSION)
8344
8345 #define IPW2100_FW_PREFIX "ipw2100-" __stringify(IPW2100_FW_MAJOR_VERSION) \
8346 "." __stringify(IPW2100_FW_MINOR_VERSION)
8347
8348 #define IPW2100_FW_NAME(x) IPW2100_FW_PREFIX "" x ".fw"
8349
8350 /*
8351
8352 BINARY FIRMWARE HEADER FORMAT
8353
8354 offset      length   desc
8355 0           2        version
8356 2           2        mode == 0:BSS,1:IBSS,2:MONITOR
8357 4           4        fw_len
8358 8           4        uc_len
8359 C           fw_len   firmware data
8360 12 + fw_len uc_len   microcode data
8361
8362 */
8363
8364 struct ipw2100_fw_header {
8365         short version;
8366         short mode;
8367         unsigned int fw_size;
8368         unsigned int uc_size;
8369 } __packed;
8370
8371 static int ipw2100_mod_firmware_load(struct ipw2100_fw *fw)
8372 {
8373         struct ipw2100_fw_header *h =
8374             (struct ipw2100_fw_header *)fw->fw_entry->data;
8375
8376         if (IPW2100_FW_MAJOR(h->version) != IPW2100_FW_MAJOR_VERSION) {
8377                 printk(KERN_WARNING DRV_NAME ": Firmware image not compatible "
8378                        "(detected version id of %u). "
8379                        "See Documentation/networking/README.ipw2100\n",
8380                        h->version);
8381                 return 1;
8382         }
8383
8384         fw->version = h->version;
8385         fw->fw.data = fw->fw_entry->data + sizeof(struct ipw2100_fw_header);
8386         fw->fw.size = h->fw_size;
8387         fw->uc.data = fw->fw.data + h->fw_size;
8388         fw->uc.size = h->uc_size;
8389
8390         return 0;
8391 }
8392
8393 static int ipw2100_get_firmware(struct ipw2100_priv *priv,
8394                                 struct ipw2100_fw *fw)
8395 {
8396         char *fw_name;
8397         int rc;
8398
8399         IPW_DEBUG_INFO("%s: Using hotplug firmware load.\n",
8400                        priv->net_dev->name);
8401
8402         switch (priv->ieee->iw_mode) {
8403         case IW_MODE_ADHOC:
8404                 fw_name = IPW2100_FW_NAME("-i");
8405                 break;
8406 #ifdef CONFIG_IPW2100_MONITOR
8407         case IW_MODE_MONITOR:
8408                 fw_name = IPW2100_FW_NAME("-p");
8409                 break;
8410 #endif
8411         case IW_MODE_INFRA:
8412         default:
8413                 fw_name = IPW2100_FW_NAME("");
8414                 break;
8415         }
8416
8417         rc = request_firmware(&fw->fw_entry, fw_name, &priv->pci_dev->dev);
8418
8419         if (rc < 0) {
8420                 printk(KERN_ERR DRV_NAME ": "
8421                        "%s: Firmware '%s' not available or load failed.\n",
8422                        priv->net_dev->name, fw_name);
8423                 return rc;
8424         }
8425         IPW_DEBUG_INFO("firmware data %p size %zd\n", fw->fw_entry->data,
8426                        fw->fw_entry->size);
8427
8428         ipw2100_mod_firmware_load(fw);
8429
8430         return 0;
8431 }
8432
8433 MODULE_FIRMWARE(IPW2100_FW_NAME("-i"));
8434 #ifdef CONFIG_IPW2100_MONITOR
8435 MODULE_FIRMWARE(IPW2100_FW_NAME("-p"));
8436 #endif
8437 MODULE_FIRMWARE(IPW2100_FW_NAME(""));
8438
8439 static void ipw2100_release_firmware(struct ipw2100_priv *priv,
8440                                      struct ipw2100_fw *fw)
8441 {
8442         fw->version = 0;
8443         release_firmware(fw->fw_entry);
8444         fw->fw_entry = NULL;
8445 }
8446
8447 static int ipw2100_get_fwversion(struct ipw2100_priv *priv, char *buf,
8448                                  size_t max)
8449 {
8450         char ver[MAX_FW_VERSION_LEN];
8451         u32 len = MAX_FW_VERSION_LEN;
8452         u32 tmp;
8453         int i;
8454         /* firmware version is an ascii string (max len of 14) */
8455         if (ipw2100_get_ordinal(priv, IPW_ORD_STAT_FW_VER_NUM, ver, &len))
8456                 return -EIO;
8457         tmp = max;
8458         if (len >= max)
8459                 len = max - 1;
8460         for (i = 0; i < len; i++)
8461                 buf[i] = ver[i];
8462         buf[i] = '\0';
8463         return tmp;
8464 }
8465
8466 static int ipw2100_get_ucodeversion(struct ipw2100_priv *priv, char *buf,
8467                                     size_t max)
8468 {
8469         u32 ver;
8470         u32 len = sizeof(ver);
8471         /* microcode version is a 32 bit integer */
8472         if (ipw2100_get_ordinal(priv, IPW_ORD_UCODE_VERSION, &ver, &len))
8473                 return -EIO;
8474         return snprintf(buf, max, "%08X", ver);
8475 }
8476
8477 /*
8478  * On exit, the firmware will have been freed from the fw list
8479  */
8480 static int ipw2100_fw_download(struct ipw2100_priv *priv, struct ipw2100_fw *fw)
8481 {
8482         /* firmware is constructed of N contiguous entries, each entry is
8483          * structured as:
8484          *
8485          * offset    sie         desc
8486          * 0         4           address to write to
8487          * 4         2           length of data run
8488          * 6         length      data
8489          */
8490         unsigned int addr;
8491         unsigned short len;
8492
8493         const unsigned char *firmware_data = fw->fw.data;
8494         unsigned int firmware_data_left = fw->fw.size;
8495
8496         while (firmware_data_left > 0) {
8497                 addr = *(u32 *) (firmware_data);
8498                 firmware_data += 4;
8499                 firmware_data_left -= 4;
8500
8501                 len = *(u16 *) (firmware_data);
8502                 firmware_data += 2;
8503                 firmware_data_left -= 2;
8504
8505                 if (len > 32) {
8506                         printk(KERN_ERR DRV_NAME ": "
8507                                "Invalid firmware run-length of %d bytes\n",
8508                                len);
8509                         return -EINVAL;
8510                 }
8511
8512                 write_nic_memory(priv->net_dev, addr, len, firmware_data);
8513                 firmware_data += len;
8514                 firmware_data_left -= len;
8515         }
8516
8517         return 0;
8518 }
8519
8520 struct symbol_alive_response {
8521         u8 cmd_id;
8522         u8 seq_num;
8523         u8 ucode_rev;
8524         u8 eeprom_valid;
8525         u16 valid_flags;
8526         u8 IEEE_addr[6];
8527         u16 flags;
8528         u16 pcb_rev;
8529         u16 clock_settle_time;  // 1us LSB
8530         u16 powerup_settle_time;        // 1us LSB
8531         u16 hop_settle_time;    // 1us LSB
8532         u8 date[3];             // month, day, year
8533         u8 time[2];             // hours, minutes
8534         u8 ucode_valid;
8535 };
8536
8537 static int ipw2100_ucode_download(struct ipw2100_priv *priv,
8538                                   struct ipw2100_fw *fw)
8539 {
8540         struct net_device *dev = priv->net_dev;
8541         const unsigned char *microcode_data = fw->uc.data;
8542         unsigned int microcode_data_left = fw->uc.size;
8543         void __iomem *reg = priv->ioaddr;
8544
8545         struct symbol_alive_response response;
8546         int i, j;
8547         u8 data;
8548
8549         /* Symbol control */
8550         write_nic_word(dev, IPW2100_CONTROL_REG, 0x703);
8551         readl(reg);
8552         write_nic_word(dev, IPW2100_CONTROL_REG, 0x707);
8553         readl(reg);
8554
8555         /* HW config */
8556         write_nic_byte(dev, 0x210014, 0x72);    /* fifo width =16 */
8557         readl(reg);
8558         write_nic_byte(dev, 0x210014, 0x72);    /* fifo width =16 */
8559         readl(reg);
8560
8561         /* EN_CS_ACCESS bit to reset control store pointer */
8562         write_nic_byte(dev, 0x210000, 0x40);
8563         readl(reg);
8564         write_nic_byte(dev, 0x210000, 0x0);
8565         readl(reg);
8566         write_nic_byte(dev, 0x210000, 0x40);
8567         readl(reg);
8568
8569         /* copy microcode from buffer into Symbol */
8570
8571         while (microcode_data_left > 0) {
8572                 write_nic_byte(dev, 0x210010, *microcode_data++);
8573                 write_nic_byte(dev, 0x210010, *microcode_data++);
8574                 microcode_data_left -= 2;
8575         }
8576
8577         /* EN_CS_ACCESS bit to reset the control store pointer */
8578         write_nic_byte(dev, 0x210000, 0x0);
8579         readl(reg);
8580
8581         /* Enable System (Reg 0)
8582          * first enable causes garbage in RX FIFO */
8583         write_nic_byte(dev, 0x210000, 0x0);
8584         readl(reg);
8585         write_nic_byte(dev, 0x210000, 0x80);
8586         readl(reg);
8587
8588         /* Reset External Baseband Reg */
8589         write_nic_word(dev, IPW2100_CONTROL_REG, 0x703);
8590         readl(reg);
8591         write_nic_word(dev, IPW2100_CONTROL_REG, 0x707);
8592         readl(reg);
8593
8594         /* HW Config (Reg 5) */
8595         write_nic_byte(dev, 0x210014, 0x72);    // fifo width =16
8596         readl(reg);
8597         write_nic_byte(dev, 0x210014, 0x72);    // fifo width =16
8598         readl(reg);
8599
8600         /* Enable System (Reg 0)
8601          * second enable should be OK */
8602         write_nic_byte(dev, 0x210000, 0x00);    // clear enable system
8603         readl(reg);
8604         write_nic_byte(dev, 0x210000, 0x80);    // set enable system
8605
8606         /* check Symbol is enabled - upped this from 5 as it wasn't always
8607          * catching the update */
8608         for (i = 0; i < 10; i++) {
8609                 udelay(10);
8610
8611                 /* check Dino is enabled bit */
8612                 read_nic_byte(dev, 0x210000, &data);
8613                 if (data & 0x1)
8614                         break;
8615         }
8616
8617         if (i == 10) {
8618                 printk(KERN_ERR DRV_NAME ": %s: Error initializing Symbol\n",
8619                        dev->name);
8620                 return -EIO;
8621         }
8622
8623         /* Get Symbol alive response */
8624         for (i = 0; i < 30; i++) {
8625                 /* Read alive response structure */
8626                 for (j = 0;
8627                      j < (sizeof(struct symbol_alive_response) >> 1); j++)
8628                         read_nic_word(dev, 0x210004, ((u16 *) & response) + j);
8629
8630                 if ((response.cmd_id == 1) && (response.ucode_valid == 0x1))
8631                         break;
8632                 udelay(10);
8633         }
8634
8635         if (i == 30) {
8636                 printk(KERN_ERR DRV_NAME
8637                        ": %s: No response from Symbol - hw not alive\n",
8638                        dev->name);
8639                 printk_buf(IPW_DL_ERROR, (u8 *) & response, sizeof(response));
8640                 return -EIO;
8641         }
8642
8643         return 0;
8644 }