err.no Git - linux-2.6/blob - drivers/net/wireless/ipw2100.c

   1 /******************************************************************************
   2
   3   Copyright(c) 2003 - 2005 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   James P. Ketrenos <ipw2100-admin@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     <jkmaline@cc.hut.fi>
  32   Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.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 referrs 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/config.h>
 138 #include <linux/errno.h>
 139 #include <linux/if_arp.h>
 140 #include <linux/in6.h>
 141 #include <linux/in.h>
 142 #include <linux/ip.h>
 143 #include <linux/kernel.h>
 144 #include <linux/kmod.h>
 145 #include <linux/module.h>
 146 #include <linux/netdevice.h>
 147 #include <linux/ethtool.h>
 148 #include <linux/pci.h>
 149 #include <linux/dma-mapping.h>
 150 #include <linux/proc_fs.h>
 151 #include <linux/skbuff.h>
 152 #include <asm/uaccess.h>
 153 #include <asm/io.h>
 154 #define __KERNEL_SYSCALLS__
 155 #include <linux/fs.h>
 156 #include <linux/mm.h>
 157 #include <linux/slab.h>
 158 #include <linux/unistd.h>
 159 #include <linux/stringify.h>
 160 #include <linux/tcp.h>
 161 #include <linux/types.h>
 162 #include <linux/version.h>
 163 #include <linux/time.h>
 164 #include <linux/firmware.h>
 165 #include <linux/acpi.h>
 166 #include <linux/ctype.h>
 167
 168 #include "ipw2100.h"
 169
 170 #define IPW2100_VERSION "1.1.1"
 171
 172 #define DRV_NAME        "ipw2100"
 173 #define DRV_VERSION     IPW2100_VERSION
 174 #define DRV_DESCRIPTION "Intel(R) PRO/Wireless 2100 Network Driver"
 175 #define DRV_COPYRIGHT   "Copyright(c) 2003-2005 Intel Corporation"
 176
 177 /* Debugging stuff */
 178 #ifdef CONFIG_IPW_DEBUG
 179 #define CONFIG_IPW2100_RX_DEBUG /* Reception debugging */
 180 #endif
 181
 182 MODULE_DESCRIPTION(DRV_DESCRIPTION);
 183 MODULE_VERSION(DRV_VERSION);
 184 MODULE_AUTHOR(DRV_COPYRIGHT);
 185 MODULE_LICENSE("GPL");
 186
 187 static int debug = 0;
 188 static int mode = 0;
 189 static int channel = 0;
 190 static int associate = 1;
 191 static int disable = 0;
 192 #ifdef CONFIG_PM
 193 static struct ipw2100_fw ipw2100_firmware;
 194 #endif
 195
 196 #include <linux/moduleparam.h>
 197 module_param(debug, int, 0444);
 198 module_param(mode, int, 0444);
 199 module_param(channel, int, 0444);
 200 module_param(associate, int, 0444);
 201 module_param(disable, int, 0444);
 202
 203 MODULE_PARM_DESC(debug, "debug level");
 204 MODULE_PARM_DESC(mode, "network mode (0=BSS,1=IBSS,2=Monitor)");
 205 MODULE_PARM_DESC(channel, "channel");
 206 MODULE_PARM_DESC(associate, "auto associate when scanning (default on)");
 207 MODULE_PARM_DESC(disable, "manually disable the radio (default 0 [radio on])");
 208
 209 static u32 ipw2100_debug_level = IPW_DL_NONE;
 210
 211 #ifdef CONFIG_IPW_DEBUG
 212 #define IPW_DEBUG(level, message...) \
 213 do { \
 214         if (ipw2100_debug_level & (level)) { \
 215                 printk(KERN_DEBUG "ipw2100: %c %s ", \
 216                        in_interrupt() ? 'I' : 'U',  __FUNCTION__); \
 217                 printk(message); \
 218         } \
 219 } while (0)
 220 #else
 221 #define IPW_DEBUG(level, message...) do {} while (0)
 222 #endif                          /* CONFIG_IPW_DEBUG */
 223
 224 #ifdef CONFIG_IPW_DEBUG
 225 static const char *command_types[] = {
 226         "undefined",
 227         "unused",               /* HOST_ATTENTION */
 228         "HOST_COMPLETE",
 229         "unused",               /* SLEEP */
 230         "unused",               /* HOST_POWER_DOWN */
 231         "unused",
 232         "SYSTEM_CONFIG",
 233         "unused",               /* SET_IMR */
 234         "SSID",
 235         "MANDATORY_BSSID",
 236         "AUTHENTICATION_TYPE",
 237         "ADAPTER_ADDRESS",
 238         "PORT_TYPE",
 239         "INTERNATIONAL_MODE",
 240         "CHANNEL",
 241         "RTS_THRESHOLD",
 242         "FRAG_THRESHOLD",
 243         "POWER_MODE",
 244         "TX_RATES",
 245         "BASIC_TX_RATES",
 246         "WEP_KEY_INFO",
 247         "unused",
 248         "unused",
 249         "unused",
 250         "unused",
 251         "WEP_KEY_INDEX",
 252         "WEP_FLAGS",
 253         "ADD_MULTICAST",
 254         "CLEAR_ALL_MULTICAST",
 255         "BEACON_INTERVAL",
 256         "ATIM_WINDOW",
 257         "CLEAR_STATISTICS",
 258         "undefined",
 259         "undefined",
 260         "undefined",
 261         "undefined",
 262         "TX_POWER_INDEX",
 263         "undefined",
 264         "undefined",
 265         "undefined",
 266         "undefined",
 267         "undefined",
 268         "undefined",
 269         "BROADCAST_SCAN",
 270         "CARD_DISABLE",
 271         "PREFERRED_BSSID",
 272         "SET_SCAN_OPTIONS",
 273         "SCAN_DWELL_TIME",
 274         "SWEEP_TABLE",
 275         "AP_OR_STATION_TABLE",
 276         "GROUP_ORDINALS",
 277         "SHORT_RETRY_LIMIT",
 278         "LONG_RETRY_LIMIT",
 279         "unused",               /* SAVE_CALIBRATION */
 280         "unused",               /* RESTORE_CALIBRATION */
 281         "undefined",
 282         "undefined",
 283         "undefined",
 284         "HOST_PRE_POWER_DOWN",
 285         "unused",               /* HOST_INTERRUPT_COALESCING */
 286         "undefined",
 287         "CARD_DISABLE_PHY_OFF",
 288         "MSDU_TX_RATES" "undefined",
 289         "undefined",
 290         "SET_STATION_STAT_BITS",
 291         "CLEAR_STATIONS_STAT_BITS",
 292         "LEAP_ROGUE_MODE",
 293         "SET_SECURITY_INFORMATION",
 294         "DISASSOCIATION_BSSID",
 295         "SET_WPA_ASS_IE"
 296 };
 297 #endif
 298
 299 /* Pre-decl until we get the code solid and then we can clean it up */
 300 static void ipw2100_tx_send_commands(struct ipw2100_priv *priv);
 301 static void ipw2100_tx_send_data(struct ipw2100_priv *priv);
 302 static int ipw2100_adapter_setup(struct ipw2100_priv *priv);
 303
 304 static void ipw2100_queues_initialize(struct ipw2100_priv *priv);
 305 static void ipw2100_queues_free(struct ipw2100_priv *priv);
 306 static int ipw2100_queues_allocate(struct ipw2100_priv *priv);
 307
 308 static int ipw2100_fw_download(struct ipw2100_priv *priv,
 309                                struct ipw2100_fw *fw);
 310 static int ipw2100_get_firmware(struct ipw2100_priv *priv,
 311                                 struct ipw2100_fw *fw);
 312 static int ipw2100_get_fwversion(struct ipw2100_priv *priv, char *buf,
 313                                  size_t max);
 314 static int ipw2100_get_ucodeversion(struct ipw2100_priv *priv, char *buf,
 315                                     size_t max);
 316 static void ipw2100_release_firmware(struct ipw2100_priv *priv,
 317                                      struct ipw2100_fw *fw);
 318 static int ipw2100_ucode_download(struct ipw2100_priv *priv,
 319                                   struct ipw2100_fw *fw);
 320 static void ipw2100_wx_event_work(struct ipw2100_priv *priv);
 321 static struct iw_statistics *ipw2100_wx_wireless_stats(struct net_device *dev);
 322 static struct iw_handler_def ipw2100_wx_handler_def;
 323
 324 static inline void read_register(struct net_device *dev, u32 reg, u32 * val)
 325 {
 326         *val = readl((void __iomem *)(dev->base_addr + reg));
 327         IPW_DEBUG_IO("r: 0x%08X => 0x%08X\n", reg, *val);
 328 }
 329
 330 static inline void write_register(struct net_device *dev, u32 reg, u32 val)
 331 {
 332         writel(val, (void __iomem *)(dev->base_addr + reg));
 333         IPW_DEBUG_IO("w: 0x%08X <= 0x%08X\n", reg, val);
 334 }
 335
 336 static inline void read_register_word(struct net_device *dev, u32 reg,
 337                                       u16 * val)
 338 {
 339         *val = readw((void __iomem *)(dev->base_addr + reg));
 340         IPW_DEBUG_IO("r: 0x%08X => %04X\n", reg, *val);
 341 }
 342
 343 static inline void read_register_byte(struct net_device *dev, u32 reg, u8 * val)
 344 {
 345         *val = readb((void __iomem *)(dev->base_addr + reg));
 346         IPW_DEBUG_IO("r: 0x%08X => %02X\n", reg, *val);
 347 }
 348
 349 static inline void write_register_word(struct net_device *dev, u32 reg, u16 val)
 350 {
 351         writew(val, (void __iomem *)(dev->base_addr + reg));
 352         IPW_DEBUG_IO("w: 0x%08X <= %04X\n", reg, val);
 353 }
 354
 355 static inline void write_register_byte(struct net_device *dev, u32 reg, u8 val)
 356 {
 357         writeb(val, (void __iomem *)(dev->base_addr + reg));
 358         IPW_DEBUG_IO("w: 0x%08X =< %02X\n", reg, val);
 359 }
 360
 361 static inline void read_nic_dword(struct net_device *dev, u32 addr, u32 * val)
 362 {
 363         write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
 364                        addr & IPW_REG_INDIRECT_ADDR_MASK);
 365         read_register(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
 366 }
 367
 368 static inline void write_nic_dword(struct net_device *dev, u32 addr, u32 val)
 369 {
 370         write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
 371                        addr & IPW_REG_INDIRECT_ADDR_MASK);
 372         write_register(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
 373 }
 374
 375 static inline void read_nic_word(struct net_device *dev, u32 addr, u16 * val)
 376 {
 377         write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
 378                        addr & IPW_REG_INDIRECT_ADDR_MASK);
 379         read_register_word(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
 380 }
 381
 382 static inline void write_nic_word(struct net_device *dev, u32 addr, u16 val)
 383 {
 384         write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
 385                        addr & IPW_REG_INDIRECT_ADDR_MASK);
 386         write_register_word(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
 387 }
 388
 389 static inline void read_nic_byte(struct net_device *dev, u32 addr, u8 * val)
 390 {
 391         write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
 392                        addr & IPW_REG_INDIRECT_ADDR_MASK);
 393         read_register_byte(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
 394 }
 395
 396 static inline void write_nic_byte(struct net_device *dev, u32 addr, u8 val)
 397 {
 398         write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
 399                        addr & IPW_REG_INDIRECT_ADDR_MASK);
 400         write_register_byte(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
 401 }
 402
 403 static inline void write_nic_auto_inc_address(struct net_device *dev, u32 addr)
 404 {
 405         write_register(dev, IPW_REG_AUTOINCREMENT_ADDRESS,
 406                        addr & IPW_REG_INDIRECT_ADDR_MASK);
 407 }
 408
 409 static inline void write_nic_dword_auto_inc(struct net_device *dev, u32 val)
 410 {
 411         write_register(dev, IPW_REG_AUTOINCREMENT_DATA, val);
 412 }
 413
 414 static inline void write_nic_memory(struct net_device *dev, u32 addr, u32 len,
 415                                     const u8 * buf)
 416 {
 417         u32 aligned_addr;
 418         u32 aligned_len;
 419         u32 dif_len;
 420         u32 i;
 421
 422         /* read first nibble byte by byte */
 423         aligned_addr = addr & (~0x3);
 424         dif_len = addr - aligned_addr;
 425         if (dif_len) {
 426                 /* Start reading at aligned_addr + dif_len */
 427                 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
 428                                aligned_addr);
 429                 for (i = dif_len; i < 4; i++, buf++)
 430                         write_register_byte(dev,
 431                                             IPW_REG_INDIRECT_ACCESS_DATA + i,
 432                                             *buf);
 433
 434                 len -= dif_len;
 435                 aligned_addr += 4;
 436         }
 437
 438         /* read DWs through autoincrement registers */
 439         write_register(dev, IPW_REG_AUTOINCREMENT_ADDRESS, aligned_addr);
 440         aligned_len = len & (~0x3);
 441         for (i = 0; i < aligned_len; i += 4, buf += 4, aligned_addr += 4)
 442                 write_register(dev, IPW_REG_AUTOINCREMENT_DATA, *(u32 *) buf);
 443
 444         /* copy the last nibble */
 445         dif_len = len - aligned_len;
 446         write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS, aligned_addr);
 447         for (i = 0; i < dif_len; i++, buf++)
 448                 write_register_byte(dev, IPW_REG_INDIRECT_ACCESS_DATA + i,
 449                                     *buf);
 450 }
 451
 452 static inline void read_nic_memory(struct net_device *dev, u32 addr, u32 len,
 453                                    u8 * buf)
 454 {
 455         u32 aligned_addr;
 456         u32 aligned_len;
 457         u32 dif_len;
 458         u32 i;
 459
 460         /* read first nibble byte by byte */
 461         aligned_addr = addr & (~0x3);
 462         dif_len = addr - aligned_addr;
 463         if (dif_len) {
 464                 /* Start reading at aligned_addr + dif_len */
 465                 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
 466                                aligned_addr);
 467                 for (i = dif_len; i < 4; i++, buf++)
 468                         read_register_byte(dev,
 469                                            IPW_REG_INDIRECT_ACCESS_DATA + i,
 470                                            buf);
 471
 472                 len -= dif_len;
 473                 aligned_addr += 4;
 474         }
 475
 476         /* read DWs through autoincrement registers */
 477         write_register(dev, IPW_REG_AUTOINCREMENT_ADDRESS, aligned_addr);
 478         aligned_len = len & (~0x3);
 479         for (i = 0; i < aligned_len; i += 4, buf += 4, aligned_addr += 4)
 480                 read_register(dev, IPW_REG_AUTOINCREMENT_DATA, (u32 *) buf);
 481
 482         /* copy the last nibble */
 483         dif_len = len - aligned_len;
 484         write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS, aligned_addr);
 485         for (i = 0; i < dif_len; i++, buf++)
 486                 read_register_byte(dev, IPW_REG_INDIRECT_ACCESS_DATA + i, buf);
 487 }
 488
 489 static inline int ipw2100_hw_is_adapter_in_system(struct net_device *dev)
 490 {
 491         return (dev->base_addr &&
 492                 (readl
 493                  ((void __iomem *)(dev->base_addr +
 494                                    IPW_REG_DOA_DEBUG_AREA_START))
 495                  == IPW_DATA_DOA_DEBUG_VALUE));
 496 }
 497
 498 static int ipw2100_get_ordinal(struct ipw2100_priv *priv, u32 ord,
 499                                void *val, u32 * len)
 500 {
 501         struct ipw2100_ordinals *ordinals = &priv->ordinals;
 502         u32 addr;
 503         u32 field_info;
 504         u16 field_len;
 505         u16 field_count;
 506         u32 total_length;
 507
 508         if (ordinals->table1_addr == 0) {
 509                 printk(KERN_WARNING DRV_NAME ": attempt to use fw ordinals "
 510                        "before they have been loaded.\n");
 511                 return -EINVAL;
 512         }
 513
 514         if (IS_ORDINAL_TABLE_ONE(ordinals, ord)) {
 515                 if (*len < IPW_ORD_TAB_1_ENTRY_SIZE) {
 516                         *len = IPW_ORD_TAB_1_ENTRY_SIZE;
 517
 518                         printk(KERN_WARNING DRV_NAME
 519                                ": ordinal buffer length too small, need %zd\n",
 520                                IPW_ORD_TAB_1_ENTRY_SIZE);
 521
 522                         return -EINVAL;
 523                 }
 524
 525                 read_nic_dword(priv->net_dev,
 526                                ordinals->table1_addr + (ord << 2), &addr);
 527                 read_nic_dword(priv->net_dev, addr, val);
 528
 529                 *len = IPW_ORD_TAB_1_ENTRY_SIZE;
 530
 531                 return 0;
 532         }
 533
 534         if (IS_ORDINAL_TABLE_TWO(ordinals, ord)) {
 535
 536                 ord -= IPW_START_ORD_TAB_2;
 537
 538                 /* get the address of statistic */
 539                 read_nic_dword(priv->net_dev,
 540                                ordinals->table2_addr + (ord << 3), &addr);
 541
 542                 /* get the second DW of statistics ;
 543                  * two 16-bit words - first is length, second is count */
 544                 read_nic_dword(priv->net_dev,
 545                                ordinals->table2_addr + (ord << 3) + sizeof(u32),
 546                                &field_info);
 547
 548                 /* get each entry length */
 549                 field_len = *((u16 *) & field_info);
 550
 551                 /* get number of entries */
 552                 field_count = *(((u16 *) & field_info) + 1);
 553
 554                 /* abort if no enought memory */
 555                 total_length = field_len * field_count;
 556                 if (total_length > *len) {
 557                         *len = total_length;
 558                         return -EINVAL;
 559                 }
 560
 561                 *len = total_length;
 562                 if (!total_length)
 563                         return 0;
 564
 565                 /* read the ordinal data from the SRAM */
 566                 read_nic_memory(priv->net_dev, addr, total_length, val);
 567
 568                 return 0;
 569         }
 570
 571         printk(KERN_WARNING DRV_NAME ": ordinal %d neither in table 1 nor "
 572                "in table 2\n", ord);
 573
 574         return -EINVAL;
 575 }
 576
 577 static int ipw2100_set_ordinal(struct ipw2100_priv *priv, u32 ord, u32 * val,
 578                                u32 * len)
 579 {
 580         struct ipw2100_ordinals *ordinals = &priv->ordinals;
 581         u32 addr;
 582
 583         if (IS_ORDINAL_TABLE_ONE(ordinals, ord)) {
 584                 if (*len != IPW_ORD_TAB_1_ENTRY_SIZE) {
 585                         *len = IPW_ORD_TAB_1_ENTRY_SIZE;
 586                         IPW_DEBUG_INFO("wrong size\n");
 587                         return -EINVAL;
 588                 }
 589
 590                 read_nic_dword(priv->net_dev,
 591                                ordinals->table1_addr + (ord << 2), &addr);
 592
 593                 write_nic_dword(priv->net_dev, addr, *val);
 594
 595                 *len = IPW_ORD_TAB_1_ENTRY_SIZE;
 596
 597                 return 0;
 598         }
 599
 600         IPW_DEBUG_INFO("wrong table\n");
 601         if (IS_ORDINAL_TABLE_TWO(ordinals, ord))
 602                 return -EINVAL;
 603
 604         return -EINVAL;
 605 }
 606
 607 static char *snprint_line(char *buf, size_t count,
 608                           const u8 * data, u32 len, u32 ofs)
 609 {
 610         int out, i, j, l;
 611         char c;
 612
 613         out = snprintf(buf, count, "%08X", ofs);
 614
 615         for (l = 0, i = 0; i < 2; i++) {
 616                 out += snprintf(buf + out, count - out, " ");
 617                 for (j = 0; j < 8 && l < len; j++, l++)
 618                         out += snprintf(buf + out, count - out, "%02X ",
 619                                         data[(i * 8 + j)]);
 620                 for (; j < 8; j++)
 621                         out += snprintf(buf + out, count - out, "   ");
 622         }
 623
 624         out += snprintf(buf + out, count - out, " ");
 625         for (l = 0, i = 0; i < 2; i++) {
 626                 out += snprintf(buf + out, count - out, " ");
 627                 for (j = 0; j < 8 && l < len; j++, l++) {
 628                         c = data[(i * 8 + j)];
 629                         if (!isascii(c) || !isprint(c))
 630                                 c = '.';
 631
 632                         out += snprintf(buf + out, count - out, "%c", c);
 633                 }
 634
 635                 for (; j < 8; j++)
 636                         out += snprintf(buf + out, count - out, " ");
 637         }
 638
 639         return buf;
 640 }
 641
 642 static void printk_buf(int level, const u8 * data, u32 len)
 643 {
 644         char line[81];
 645         u32 ofs = 0;
 646         if (!(ipw2100_debug_level & level))
 647                 return;
 648
 649         while (len) {
 650                 printk(KERN_DEBUG "%s\n",
 651                        snprint_line(line, sizeof(line), &data[ofs],
 652                                     min(len, 16U), ofs));
 653                 ofs += 16;
 654                 len -= min(len, 16U);
 655         }
 656 }
 657
 658 #define MAX_RESET_BACKOFF 10
 659
 660 static inline void schedule_reset(struct ipw2100_priv *priv)
 661 {
 662         unsigned long now = get_seconds();
 663
 664         /* If we haven't received a reset request within the backoff period,
 665          * then we can reset the backoff interval so this reset occurs
 666          * immediately */
 667         if (priv->reset_backoff &&
 668             (now - priv->last_reset > priv->reset_backoff))
 669                 priv->reset_backoff = 0;
 670
 671         priv->last_reset = get_seconds();
 672
 673         if (!(priv->status & STATUS_RESET_PENDING)) {
 674                 IPW_DEBUG_INFO("%s: Scheduling firmware restart (%ds).\n",
 675                                priv->net_dev->name, priv->reset_backoff);
 676                 netif_carrier_off(priv->net_dev);
 677                 netif_stop_queue(priv->net_dev);
 678                 priv->status |= STATUS_RESET_PENDING;
 679                 if (priv->reset_backoff)
 680                         queue_delayed_work(priv->workqueue, &priv->reset_work,
 681                                            priv->reset_backoff * HZ);
 682                 else
 683                         queue_work(priv->workqueue, &priv->reset_work);
 684
 685                 if (priv->reset_backoff < MAX_RESET_BACKOFF)
 686                         priv->reset_backoff++;
 687
 688                 wake_up_interruptible(&priv->wait_command_queue);
 689         } else
 690                 IPW_DEBUG_INFO("%s: Firmware restart already in progress.\n",
 691                                priv->net_dev->name);
 692
 693 }
 694
 695 #define HOST_COMPLETE_TIMEOUT (2 * HZ)
 696 static int ipw2100_hw_send_command(struct ipw2100_priv *priv,
 697                                    struct host_command *cmd)
 698 {
 699         struct list_head *element;
 700         struct ipw2100_tx_packet *packet;
 701         unsigned long flags;
 702         int err = 0;
 703
 704         IPW_DEBUG_HC("Sending %s command (#%d), %d bytes\n",
 705                      command_types[cmd->host_command], cmd->host_command,
 706                      cmd->host_command_length);
 707         printk_buf(IPW_DL_HC, (u8 *) cmd->host_command_parameters,
 708                    cmd->host_command_length);
 709
 710         spin_lock_irqsave(&priv->low_lock, flags);
 711
 712         if (priv->fatal_error) {
 713                 IPW_DEBUG_INFO
 714                     ("Attempt to send command while hardware in fatal error condition.\n");
 715                 err = -EIO;
 716                 goto fail_unlock;
 717         }
 718
 719         if (!(priv->status & STATUS_RUNNING)) {
 720                 IPW_DEBUG_INFO
 721                     ("Attempt to send command while hardware is not running.\n");
 722                 err = -EIO;
 723                 goto fail_unlock;
 724         }
 725
 726         if (priv->status & STATUS_CMD_ACTIVE) {
 727                 IPW_DEBUG_INFO
 728                     ("Attempt to send command while another command is pending.\n");
 729                 err = -EBUSY;
 730                 goto fail_unlock;
 731         }
 732
 733         if (list_empty(&priv->msg_free_list)) {
 734                 IPW_DEBUG_INFO("no available msg buffers\n");
 735                 goto fail_unlock;
 736         }
 737
 738         priv->status |= STATUS_CMD_ACTIVE;
 739         priv->messages_sent++;
 740
 741         element = priv->msg_free_list.next;
 742
 743         packet = list_entry(element, struct ipw2100_tx_packet, list);
 744         packet->jiffy_start = jiffies;
 745
 746         /* initialize the firmware command packet */
 747         packet->info.c_struct.cmd->host_command_reg = cmd->host_command;
 748         packet->info.c_struct.cmd->host_command_reg1 = cmd->host_command1;
 749         packet->info.c_struct.cmd->host_command_len_reg =
 750             cmd->host_command_length;
 751         packet->info.c_struct.cmd->sequence = cmd->host_command_sequence;
 752
 753         memcpy(packet->info.c_struct.cmd->host_command_params_reg,
 754                cmd->host_command_parameters,
 755                sizeof(packet->info.c_struct.cmd->host_command_params_reg));
 756
 757         list_del(element);
 758         DEC_STAT(&priv->msg_free_stat);
 759
 760         list_add_tail(element, &priv->msg_pend_list);
 761         INC_STAT(&priv->msg_pend_stat);
 762
 763         ipw2100_tx_send_commands(priv);
 764         ipw2100_tx_send_data(priv);
 765
 766         spin_unlock_irqrestore(&priv->low_lock, flags);
 767
 768         /*
 769          * We must wait for this command to complete before another
 770          * command can be sent...  but if we wait more than 3 seconds
 771          * then there is a problem.
 772          */
 773
 774         err =
 775             wait_event_interruptible_timeout(priv->wait_command_queue,
 776                                              !(priv->
 777                                                status & STATUS_CMD_ACTIVE),
 778                                              HOST_COMPLETE_TIMEOUT);
 779
 780         if (err == 0) {
 781                 IPW_DEBUG_INFO("Command completion failed out after %dms.\n",
 782                                1000 * (HOST_COMPLETE_TIMEOUT / HZ));
 783                 priv->fatal_error = IPW2100_ERR_MSG_TIMEOUT;
 784                 priv->status &= ~STATUS_CMD_ACTIVE;
 785                 schedule_reset(priv);
 786                 return -EIO;
 787         }
 788
 789         if (priv->fatal_error) {
 790                 printk(KERN_WARNING DRV_NAME ": %s: firmware fatal error\n",
 791                        priv->net_dev->name);
 792                 return -EIO;
 793         }
 794
 795         /* !!!!! HACK TEST !!!!!
 796          * When lots of debug trace statements are enabled, the driver
 797          * doesn't seem to have as many firmware restart cycles...
 798          *
 799          * As a test, we're sticking in a 1/100s delay here */
 800         schedule_timeout_uninterruptible(msecs_to_jiffies(10));
 801
 802         return 0;
 803
 804       fail_unlock:
 805         spin_unlock_irqrestore(&priv->low_lock, flags);
 806
 807         return err;
 808 }
 809
 810 /*
 811  * Verify the values and data access of the hardware
 812  * No locks needed or used.  No functions called.
 813  */
 814 static int ipw2100_verify(struct ipw2100_priv *priv)
 815 {
 816         u32 data1, data2;
 817         u32 address;
 818
 819         u32 val1 = 0x76543210;
 820         u32 val2 = 0xFEDCBA98;
 821
 822         /* Domain 0 check - all values should be DOA_DEBUG */
 823         for (address = IPW_REG_DOA_DEBUG_AREA_START;
 824              address < IPW_REG_DOA_DEBUG_AREA_END; address += sizeof(u32)) {
 825                 read_register(priv->net_dev, address, &data1);
 826                 if (data1 != IPW_DATA_DOA_DEBUG_VALUE)
 827                         return -EIO;
 828         }
 829
 830         /* Domain 1 check - use arbitrary read/write compare  */
 831         for (address = 0; address < 5; address++) {
 832                 /* The memory area is not used now */
 833                 write_register(priv->net_dev, IPW_REG_DOMAIN_1_OFFSET + 0x32,
 834                                val1);
 835                 write_register(priv->net_dev, IPW_REG_DOMAIN_1_OFFSET + 0x36,
 836                                val2);
 837                 read_register(priv->net_dev, IPW_REG_DOMAIN_1_OFFSET + 0x32,
 838                               &data1);
 839                 read_register(priv->net_dev, IPW_REG_DOMAIN_1_OFFSET + 0x36,
 840                               &data2);
 841                 if (val1 == data1 && val2 == data2)
 842                         return 0;
 843         }
 844
 845         return -EIO;
 846 }
 847
 848 /*
 849  *
 850  * Loop until the CARD_DISABLED bit is the same value as the
 851  * supplied parameter
 852  *
 853  * TODO: See if it would be more efficient to do a wait/wake
 854  *       cycle and have the completion event trigger the wakeup
 855  *
 856  */
 857 #define IPW_CARD_DISABLE_COMPLETE_WAIT              100 // 100 milli
 858 static int ipw2100_wait_for_card_state(struct ipw2100_priv *priv, int state)
 859 {
 860         int i;
 861         u32 card_state;
 862         u32 len = sizeof(card_state);
 863         int err;
 864
 865         for (i = 0; i <= IPW_CARD_DISABLE_COMPLETE_WAIT * 1000; i += 50) {
 866                 err = ipw2100_get_ordinal(priv, IPW_ORD_CARD_DISABLED,
 867                                           &card_state, &len);
 868                 if (err) {
 869                         IPW_DEBUG_INFO("Query of CARD_DISABLED ordinal "
 870                                        "failed.\n");
 871                         return 0;
 872                 }
 873
 874                 /* We'll break out if either the HW state says it is
 875                  * in the state we want, or if HOST_COMPLETE command
 876                  * finishes */
 877                 if ((card_state == state) ||
 878                     ((priv->status & STATUS_ENABLED) ?
 879                      IPW_HW_STATE_ENABLED : IPW_HW_STATE_DISABLED) == state) {
 880                         if (state == IPW_HW_STATE_ENABLED)
 881                                 priv->status |= STATUS_ENABLED;
 882                         else
 883                                 priv->status &= ~STATUS_ENABLED;
 884
 885                         return 0;
 886                 }
 887
 888                 udelay(50);
 889         }
 890
 891         IPW_DEBUG_INFO("ipw2100_wait_for_card_state to %s state timed out\n",
 892                        state ? "DISABLED" : "ENABLED");
 893         return -EIO;
 894 }
 895
 896 /*********************************************************************
 897     Procedure   :   sw_reset_and_clock
 898     Purpose     :   Asserts s/w reset, asserts clock initialization
 899                     and waits for clock stabilization
 900  ********************************************************************/
 901 static int sw_reset_and_clock(struct ipw2100_priv *priv)
 902 {
 903         int i;
 904         u32 r;
 905
 906         // assert s/w reset
 907         write_register(priv->net_dev, IPW_REG_RESET_REG,
 908                        IPW_AUX_HOST_RESET_REG_SW_RESET);
 909
 910         // wait for clock stabilization
 911         for (i = 0; i < 1000; i++) {
 912                 udelay(IPW_WAIT_RESET_ARC_COMPLETE_DELAY);
 913
 914                 // check clock ready bit
 915                 read_register(priv->net_dev, IPW_REG_RESET_REG, &r);
 916                 if (r & IPW_AUX_HOST_RESET_REG_PRINCETON_RESET)
 917                         break;
 918         }
 919
 920         if (i == 1000)
 921                 return -EIO;    // TODO: better error value
 922
 923         /* set "initialization complete" bit to move adapter to
 924          * D0 state */
 925         write_register(priv->net_dev, IPW_REG_GP_CNTRL,
 926                        IPW_AUX_HOST_GP_CNTRL_BIT_INIT_DONE);
 927
 928         /* wait for clock stabilization */
 929         for (i = 0; i < 10000; i++) {
 930                 udelay(IPW_WAIT_CLOCK_STABILIZATION_DELAY * 4);
 931
 932                 /* check clock ready bit */
 933                 read_register(priv->net_dev, IPW_REG_GP_CNTRL, &r);
 934                 if (r & IPW_AUX_HOST_GP_CNTRL_BIT_CLOCK_READY)
 935                         break;
 936         }
 937
 938         if (i == 10000)
 939                 return -EIO;    /* TODO: better error value */
 940
 941         /* set D0 standby bit */
 942         read_register(priv->net_dev, IPW_REG_GP_CNTRL, &r);
 943         write_register(priv->net_dev, IPW_REG_GP_CNTRL,
 944                        r | IPW_AUX_HOST_GP_CNTRL_BIT_HOST_ALLOWS_STANDBY);
 945
 946         return 0;
 947 }
 948
 949 /*********************************************************************
 950     Procedure   :   ipw2100_download_firmware
 951     Purpose     :   Initiaze adapter after power on.
 952                     The sequence is:
 953                     1. assert s/w reset first!
 954                     2. awake clocks & wait for clock stabilization
 955                     3. hold ARC (don't ask me why...)
 956                     4. load Dino ucode and reset/clock init again
 957                     5. zero-out shared mem
 958                     6. download f/w
 959  *******************************************************************/
 960 static int ipw2100_download_firmware(struct ipw2100_priv *priv)
 961 {
 962         u32 address;
 963         int err;
 964
 965 #ifndef CONFIG_PM
 966         /* Fetch the firmware and microcode */
 967         struct ipw2100_fw ipw2100_firmware;
 968 #endif
 969
 970         if (priv->fatal_error) {
 971                 IPW_DEBUG_ERROR("%s: ipw2100_download_firmware called after "
 972                                 "fatal error %d.  Interface must be brought down.\n",
 973                                 priv->net_dev->name, priv->fatal_error);
 974                 return -EINVAL;
 975         }
 976 #ifdef CONFIG_PM
 977         if (!ipw2100_firmware.version) {
 978                 err = ipw2100_get_firmware(priv, &ipw2100_firmware);
 979                 if (err) {
 980                         IPW_DEBUG_ERROR("%s: ipw2100_get_firmware failed: %d\n",
 981                                         priv->net_dev->name, err);
 982                         priv->fatal_error = IPW2100_ERR_FW_LOAD;
 983                         goto fail;
 984                 }
 985         }
 986 #else
 987         err = ipw2100_get_firmware(priv, &ipw2100_firmware);
 988         if (err) {
 989                 IPW_DEBUG_ERROR("%s: ipw2100_get_firmware failed: %d\n",
 990                                 priv->net_dev->name, err);
 991                 priv->fatal_error = IPW2100_ERR_FW_LOAD;
 992                 goto fail;
 993         }
 994 #endif
 995         priv->firmware_version = ipw2100_firmware.version;
 996
 997         /* s/w reset and clock stabilization */
 998         err = sw_reset_and_clock(priv);
 999         if (err) {
1000                 IPW_DEBUG_ERROR("%s: sw_reset_and_clock failed: %d\n",
1001                                 priv->net_dev->name, err);
1002                 goto fail;
1003         }
1004
1005         err = ipw2100_verify(priv);
1006         if (err) {
1007                 IPW_DEBUG_ERROR("%s: ipw2100_verify failed: %d\n",
1008                                 priv->net_dev->name, err);
1009                 goto fail;
1010         }
1011
1012         /* Hold ARC */
1013         write_nic_dword(priv->net_dev,
1014                         IPW_INTERNAL_REGISTER_HALT_AND_RESET, 0x80000000);
1015
1016         /* allow ARC to run */
1017         write_register(priv->net_dev, IPW_REG_RESET_REG, 0);
1018
1019         /* load microcode */
1020         err = ipw2100_ucode_download(priv, &ipw2100_firmware);
1021         if (err) {
1022                 printk(KERN_ERR DRV_NAME ": %s: Error loading microcode: %d\n",
1023                        priv->net_dev->name, err);
1024                 goto fail;
1025         }
1026
1027         /* release ARC */
1028         write_nic_dword(priv->net_dev,
1029                         IPW_INTERNAL_REGISTER_HALT_AND_RESET, 0x00000000);
1030
1031         /* s/w reset and clock stabilization (again!!!) */
1032         err = sw_reset_and_clock(priv);
1033         if (err) {
1034                 printk(KERN_ERR DRV_NAME
1035                        ": %s: sw_reset_and_clock failed: %d\n",
1036                        priv->net_dev->name, err);
1037                 goto fail;
1038         }
1039
1040         /* load f/w */
1041         err = ipw2100_fw_download(priv, &ipw2100_firmware);
1042         if (err) {
1043                 IPW_DEBUG_ERROR("%s: Error loading firmware: %d\n",
1044                                 priv->net_dev->name, err);
1045                 goto fail;
1046         }
1047 #ifndef CONFIG_PM
1048         /*
1049          * When the .resume method of the driver is called, the other
1050          * part of the system, i.e. the ide driver could still stay in
1051          * the suspend stage. This prevents us from loading the firmware
1052          * from the disk.  --YZ
1053          */
1054
1055         /* free any storage allocated for firmware image */
1056         ipw2100_release_firmware(priv, &ipw2100_firmware);
1057 #endif
1058
1059         /* zero out Domain 1 area indirectly (Si requirement) */
1060         for (address = IPW_HOST_FW_SHARED_AREA0;
1061              address < IPW_HOST_FW_SHARED_AREA0_END; address += 4)
1062                 write_nic_dword(priv->net_dev, address, 0);
1063         for (address = IPW_HOST_FW_SHARED_AREA1;
1064              address < IPW_HOST_FW_SHARED_AREA1_END; address += 4)
1065                 write_nic_dword(priv->net_dev, address, 0);
1066         for (address = IPW_HOST_FW_SHARED_AREA2;
1067              address < IPW_HOST_FW_SHARED_AREA2_END; address += 4)
1068                 write_nic_dword(priv->net_dev, address, 0);
1069         for (address = IPW_HOST_FW_SHARED_AREA3;
1070              address < IPW_HOST_FW_SHARED_AREA3_END; address += 4)
1071                 write_nic_dword(priv->net_dev, address, 0);
1072         for (address = IPW_HOST_FW_INTERRUPT_AREA;
1073              address < IPW_HOST_FW_INTERRUPT_AREA_END; address += 4)
1074                 write_nic_dword(priv->net_dev, address, 0);
1075
1076         return 0;
1077
1078       fail:
1079         ipw2100_release_firmware(priv, &ipw2100_firmware);
1080         return err;
1081 }
1082
1083 static inline void ipw2100_enable_interrupts(struct ipw2100_priv *priv)
1084 {
1085         if (priv->status & STATUS_INT_ENABLED)
1086                 return;
1087         priv->status |= STATUS_INT_ENABLED;
1088         write_register(priv->net_dev, IPW_REG_INTA_MASK, IPW_INTERRUPT_MASK);
1089 }
1090
1091 static inline void ipw2100_disable_interrupts(struct ipw2100_priv *priv)
1092 {
1093         if (!(priv->status & STATUS_INT_ENABLED))
1094                 return;
1095         priv->status &= ~STATUS_INT_ENABLED;
1096         write_register(priv->net_dev, IPW_REG_INTA_MASK, 0x0);
1097 }
1098
1099 static void ipw2100_initialize_ordinals(struct ipw2100_priv *priv)
1100 {
1101         struct ipw2100_ordinals *ord = &priv->ordinals;
1102
1103         IPW_DEBUG_INFO("enter\n");
1104
1105         read_register(priv->net_dev, IPW_MEM_HOST_SHARED_ORDINALS_TABLE_1,
1106                       &ord->table1_addr);
1107
1108         read_register(priv->net_dev, IPW_MEM_HOST_SHARED_ORDINALS_TABLE_2,
1109                       &ord->table2_addr);
1110
1111         read_nic_dword(priv->net_dev, ord->table1_addr, &ord->table1_size);
1112         read_nic_dword(priv->net_dev, ord->table2_addr, &ord->table2_size);
1113
1114         ord->table2_size &= 0x0000FFFF;
1115
1116         IPW_DEBUG_INFO("table 1 size: %d\n", ord->table1_size);
1117         IPW_DEBUG_INFO("table 2 size: %d\n", ord->table2_size);
1118         IPW_DEBUG_INFO("exit\n");
1119 }
1120
1121 static inline void ipw2100_hw_set_gpio(struct ipw2100_priv *priv)
1122 {
1123         u32 reg = 0;
1124         /*
1125          * Set GPIO 3 writable by FW; GPIO 1 writable
1126          * by driver and enable clock
1127          */
1128         reg = (IPW_BIT_GPIO_GPIO3_MASK | IPW_BIT_GPIO_GPIO1_ENABLE |
1129                IPW_BIT_GPIO_LED_OFF);
1130         write_register(priv->net_dev, IPW_REG_GPIO, reg);
1131 }
1132
1133 static inline int rf_kill_active(struct ipw2100_priv *priv)
1134 {
1135 #define MAX_RF_KILL_CHECKS 5
1136 #define RF_KILL_CHECK_DELAY 40
1137
1138         unsigned short value = 0;
1139         u32 reg = 0;
1140         int i;
1141
1142         if (!(priv->hw_features & HW_FEATURE_RFKILL)) {
1143                 priv->status &= ~STATUS_RF_KILL_HW;
1144                 return 0;
1145         }
1146
1147         for (i = 0; i < MAX_RF_KILL_CHECKS; i++) {
1148                 udelay(RF_KILL_CHECK_DELAY);
1149                 read_register(priv->net_dev, IPW_REG_GPIO, &reg);
1150                 value = (value << 1) | ((reg & IPW_BIT_GPIO_RF_KILL) ? 0 : 1);
1151         }
1152
1153         if (value == 0)
1154                 priv->status |= STATUS_RF_KILL_HW;
1155         else
1156                 priv->status &= ~STATUS_RF_KILL_HW;
1157
1158         return (value == 0);
1159 }
1160
1161 static int ipw2100_get_hw_features(struct ipw2100_priv *priv)
1162 {
1163         u32 addr, len;
1164         u32 val;
1165
1166         /*
1167          * EEPROM_SRAM_DB_START_ADDRESS using ordinal in ordinal table 1
1168          */
1169         len = sizeof(addr);
1170         if (ipw2100_get_ordinal
1171             (priv, IPW_ORD_EEPROM_SRAM_DB_BLOCK_START_ADDRESS, &addr, &len)) {
1172                 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
1173                                __LINE__);
1174                 return -EIO;
1175         }
1176
1177         IPW_DEBUG_INFO("EEPROM address: %08X\n", addr);
1178
1179         /*
1180          * EEPROM version is the byte at offset 0xfd in firmware
1181          * We read 4 bytes, then shift out the byte we actually want */
1182         read_nic_dword(priv->net_dev, addr + 0xFC, &val);
1183         priv->eeprom_version = (val >> 24) & 0xFF;
1184         IPW_DEBUG_INFO("EEPROM version: %d\n", priv->eeprom_version);
1185
1186         /*
1187          *  HW RF Kill enable is bit 0 in byte at offset 0x21 in firmware
1188          *
1189          *  notice that the EEPROM bit is reverse polarity, i.e.
1190          *     bit = 0  signifies HW RF kill switch is supported
1191          *     bit = 1  signifies HW RF kill switch is NOT supported
1192          */
1193         read_nic_dword(priv->net_dev, addr + 0x20, &val);
1194         if (!((val >> 24) & 0x01))
1195                 priv->hw_features |= HW_FEATURE_RFKILL;
1196
1197         IPW_DEBUG_INFO("HW RF Kill: %ssupported.\n",
1198                        (priv->hw_features & HW_FEATURE_RFKILL) ? "" : "not ");
1199
1200         return 0;
1201 }
1202
1203 /*
1204  * Start firmware execution after power on and intialization
1205  * The sequence is:
1206  *  1. Release ARC
1207  *  2. Wait for f/w initialization completes;
1208  */
1209 static int ipw2100_start_adapter(struct ipw2100_priv *priv)
1210 {
1211         int i;
1212         u32 inta, inta_mask, gpio;
1213
1214         IPW_DEBUG_INFO("enter\n");
1215
1216         if (priv->status & STATUS_RUNNING)
1217                 return 0;
1218
1219         /*
1220          * Initialize the hw - drive adapter to DO state by setting
1221          * init_done bit. Wait for clk_ready bit and Download
1222          * fw & dino ucode
1223          */
1224         if (ipw2100_download_firmware(priv)) {
1225                 printk(KERN_ERR DRV_NAME
1226                        ": %s: Failed to power on the adapter.\n",
1227                        priv->net_dev->name);
1228                 return -EIO;
1229         }
1230
1231         /* Clear the Tx, Rx and Msg queues and the r/w indexes
1232          * in the firmware RBD and TBD ring queue */
1233         ipw2100_queues_initialize(priv);
1234
1235         ipw2100_hw_set_gpio(priv);
1236
1237         /* TODO -- Look at disabling interrupts here to make sure none
1238          * get fired during FW initialization */
1239
1240         /* Release ARC - clear reset bit */
1241         write_register(priv->net_dev, IPW_REG_RESET_REG, 0);
1242
1243         /* wait for f/w intialization complete */
1244         IPW_DEBUG_FW("Waiting for f/w initialization to complete...\n");
1245         i = 5000;
1246         do {
1247                 schedule_timeout_uninterruptible(msecs_to_jiffies(40));
1248                 /* Todo... wait for sync command ... */
1249
1250                 read_register(priv->net_dev, IPW_REG_INTA, &inta);
1251
1252                 /* check "init done" bit */
1253                 if (inta & IPW2100_INTA_FW_INIT_DONE) {
1254                         /* reset "init done" bit */
1255                         write_register(priv->net_dev, IPW_REG_INTA,
1256                                        IPW2100_INTA_FW_INIT_DONE);
1257                         break;
1258                 }
1259
1260                 /* check error conditions : we check these after the firmware
1261                  * check so that if there is an error, the interrupt handler
1262                  * will see it and the adapter will be reset */
1263                 if (inta &
1264                     (IPW2100_INTA_FATAL_ERROR | IPW2100_INTA_PARITY_ERROR)) {
1265                         /* clear error conditions */
1266                         write_register(priv->net_dev, IPW_REG_INTA,
1267                                        IPW2100_INTA_FATAL_ERROR |
1268                                        IPW2100_INTA_PARITY_ERROR);
1269                 }
1270         } while (i--);
1271
1272         /* Clear out any pending INTAs since we aren't supposed to have
1273          * interrupts enabled at this point... */
1274         read_register(priv->net_dev, IPW_REG_INTA, &inta);
1275         read_register(priv->net_dev, IPW_REG_INTA_MASK, &inta_mask);
1276         inta &= IPW_INTERRUPT_MASK;
1277         /* Clear out any pending interrupts */
1278         if (inta & inta_mask)
1279                 write_register(priv->net_dev, IPW_REG_INTA, inta);
1280
1281         IPW_DEBUG_FW("f/w initialization complete: %s\n",
1282                      i ? "SUCCESS" : "FAILED");
1283
1284         if (!i) {
1285                 printk(KERN_WARNING DRV_NAME
1286                        ": %s: Firmware did not initialize.\n",
1287                        priv->net_dev->name);
1288                 return -EIO;
1289         }
1290
1291         /* allow firmware to write to GPIO1 & GPIO3 */
1292         read_register(priv->net_dev, IPW_REG_GPIO, &gpio);
1293
1294         gpio |= (IPW_BIT_GPIO_GPIO1_MASK | IPW_BIT_GPIO_GPIO3_MASK);
1295
1296         write_register(priv->net_dev, IPW_REG_GPIO, gpio);
1297
1298         /* Ready to receive commands */
1299         priv->status |= STATUS_RUNNING;
1300
1301         /* The adapter has been reset; we are not associated */
1302         priv->status &= ~(STATUS_ASSOCIATING | STATUS_ASSOCIATED);
1303
1304         IPW_DEBUG_INFO("exit\n");
1305
1306         return 0;
1307 }
1308
1309 static inline void ipw2100_reset_fatalerror(struct ipw2100_priv *priv)
1310 {
1311         if (!priv->fatal_error)
1312                 return;
1313
1314         priv->fatal_errors[priv->fatal_index++] = priv->fatal_error;
1315         priv->fatal_index %= IPW2100_ERROR_QUEUE;
1316         priv->fatal_error = 0;
1317 }
1318
1319 /* NOTE: Our interrupt is disabled when this method is called */
1320 static int ipw2100_power_cycle_adapter(struct ipw2100_priv *priv)
1321 {
1322         u32 reg;
1323         int i;
1324
1325         IPW_DEBUG_INFO("Power cycling the hardware.\n");
1326
1327         ipw2100_hw_set_gpio(priv);
1328
1329         /* Step 1. Stop Master Assert */
1330         write_register(priv->net_dev, IPW_REG_RESET_REG,
1331                        IPW_AUX_HOST_RESET_REG_STOP_MASTER);
1332
1333         /* Step 2. Wait for stop Master Assert
1334          *         (not more then 50us, otherwise ret error */
1335         i = 5;
1336         do {
1337                 udelay(IPW_WAIT_RESET_MASTER_ASSERT_COMPLETE_DELAY);
1338                 read_register(priv->net_dev, IPW_REG_RESET_REG, &reg);
1339
1340                 if (reg & IPW_AUX_HOST_RESET_REG_MASTER_DISABLED)
1341                         break;
1342         } while (i--);
1343
1344         priv->status &= ~STATUS_RESET_PENDING;
1345
1346         if (!i) {
1347                 IPW_DEBUG_INFO
1348                     ("exit - waited too long for master assert stop\n");
1349                 return -EIO;
1350         }
1351
1352         write_register(priv->net_dev, IPW_REG_RESET_REG,
1353                        IPW_AUX_HOST_RESET_REG_SW_RESET);
1354
1355         /* Reset any fatal_error conditions */
1356         ipw2100_reset_fatalerror(priv);
1357
1358         /* At this point, the adapter is now stopped and disabled */
1359         priv->status &= ~(STATUS_RUNNING | STATUS_ASSOCIATING |
1360                           STATUS_ASSOCIATED | STATUS_ENABLED);
1361
1362         return 0;
1363 }
1364
1365 /*
1366  * Send the CARD_DISABLE_PHY_OFF comamnd to the card to disable it
1367  *
1368  * After disabling, if the card was associated, a STATUS_ASSN_LOST will be sent.
1369  *
1370  * STATUS_CARD_DISABLE_NOTIFICATION will be sent regardless of
1371  * if STATUS_ASSN_LOST is sent.
1372  */
1373 static int ipw2100_hw_phy_off(struct ipw2100_priv *priv)
1374 {
1375
1376 #define HW_PHY_OFF_LOOP_DELAY (HZ / 5000)
1377
1378         struct host_command cmd = {
1379                 .host_command = CARD_DISABLE_PHY_OFF,
1380                 .host_command_sequence = 0,
1381                 .host_command_length = 0,
1382         };
1383         int err, i;
1384         u32 val1, val2;
1385
1386         IPW_DEBUG_HC("CARD_DISABLE_PHY_OFF\n");
1387
1388         /* Turn off the radio */
1389         err = ipw2100_hw_send_command(priv, &cmd);
1390         if (err)
1391                 return err;
1392
1393         for (i = 0; i < 2500; i++) {
1394                 read_nic_dword(priv->net_dev, IPW2100_CONTROL_REG, &val1);
1395                 read_nic_dword(priv->net_dev, IPW2100_COMMAND, &val2);
1396
1397                 if ((val1 & IPW2100_CONTROL_PHY_OFF) &&
1398                     (val2 & IPW2100_COMMAND_PHY_OFF))
1399                         return 0;
1400
1401                 schedule_timeout_uninterruptible(HW_PHY_OFF_LOOP_DELAY);
1402         }
1403
1404         return -EIO;
1405 }
1406
1407 static int ipw2100_enable_adapter(struct ipw2100_priv *priv)
1408 {
1409         struct host_command cmd = {
1410                 .host_command = HOST_COMPLETE,
1411                 .host_command_sequence = 0,
1412                 .host_command_length = 0
1413         };
1414         int err = 0;
1415
1416         IPW_DEBUG_HC("HOST_COMPLETE\n");
1417
1418         if (priv->status & STATUS_ENABLED)
1419                 return 0;
1420
1421         down(&priv->adapter_sem);
1422
1423         if (rf_kill_active(priv)) {
1424                 IPW_DEBUG_HC("Command aborted due to RF kill active.\n");
1425                 goto fail_up;
1426         }
1427
1428         err = ipw2100_hw_send_command(priv, &cmd);
1429         if (err) {
1430                 IPW_DEBUG_INFO("Failed to send HOST_COMPLETE command\n");
1431                 goto fail_up;
1432         }
1433
1434         err = ipw2100_wait_for_card_state(priv, IPW_HW_STATE_ENABLED);
1435         if (err) {
1436                 IPW_DEBUG_INFO("%s: card not responding to init command.\n",
1437                                priv->net_dev->name);
1438                 goto fail_up;
1439         }
1440
1441         if (priv->stop_hang_check) {
1442                 priv->stop_hang_check = 0;
1443                 queue_delayed_work(priv->workqueue, &priv->hang_check, HZ / 2);
1444         }
1445
1446       fail_up:
1447         up(&priv->adapter_sem);
1448         return err;
1449 }
1450
1451 static int ipw2100_hw_stop_adapter(struct ipw2100_priv *priv)
1452 {
1453 #define HW_POWER_DOWN_DELAY (msecs_to_jiffies(100))
1454
1455         struct host_command cmd = {
1456                 .host_command = HOST_PRE_POWER_DOWN,
1457                 .host_command_sequence = 0,
1458                 .host_command_length = 0,
1459         };
1460         int err, i;
1461         u32 reg;
1462
1463         if (!(priv->status & STATUS_RUNNING))
1464                 return 0;
1465
1466         priv->status |= STATUS_STOPPING;
1467
1468         /* We can only shut down the card if the firmware is operational.  So,
1469          * if we haven't reset since a fatal_error, then we can not send the
1470          * shutdown commands. */
1471         if (!priv->fatal_error) {
1472                 /* First, make sure the adapter is enabled so that the PHY_OFF
1473                  * command can shut it down */
1474                 ipw2100_enable_adapter(priv);
1475
1476                 err = ipw2100_hw_phy_off(priv);
1477                 if (err)
1478                         printk(KERN_WARNING DRV_NAME
1479                                ": Error disabling radio %d\n", err);
1480
1481                 /*
1482                  * If in D0-standby mode going directly to D3 may cause a
1483                  * PCI bus violation.  Therefore we must change out of the D0
1484                  * state.
1485                  *
1486                  * Sending the PREPARE_FOR_POWER_DOWN will restrict the
1487                  * hardware from going into standby mode and will transition
1488                  * out of D0-standy if it is already in that state.
1489                  *
1490                  * STATUS_PREPARE_POWER_DOWN_COMPLETE will be sent by the
1491                  * driver upon completion.  Once received, the driver can
1492                  * proceed to the D3 state.
1493                  *
1494                  * Prepare for power down command to fw.  This command would
1495                  * take HW out of D0-standby and prepare it for D3 state.
1496                  *
1497                  * Currently FW does not support event notification for this
1498                  * event. Therefore, skip waiting for it.  Just wait a fixed
1499                  * 100ms
1500                  */
1501                 IPW_DEBUG_HC("HOST_PRE_POWER_DOWN\n");
1502
1503                 err = ipw2100_hw_send_command(priv, &cmd);
1504                 if (err)
1505                         printk(KERN_WARNING DRV_NAME ": "
1506                                "%s: Power down command failed: Error %d\n",
1507                                priv->net_dev->name, err);
1508                 else
1509                         schedule_timeout_uninterruptible(HW_POWER_DOWN_DELAY);
1510         }
1511
1512         priv->status &= ~STATUS_ENABLED;
1513
1514         /*
1515          * Set GPIO 3 writable by FW; GPIO 1 writable
1516          * by driver and enable clock
1517          */
1518         ipw2100_hw_set_gpio(priv);
1519
1520         /*
1521          * Power down adapter.  Sequence:
1522          * 1. Stop master assert (RESET_REG[9]=1)
1523          * 2. Wait for stop master (RESET_REG[8]==1)
1524          * 3. S/w reset assert (RESET_REG[7] = 1)
1525          */
1526
1527         /* Stop master assert */
1528         write_register(priv->net_dev, IPW_REG_RESET_REG,
1529                        IPW_AUX_HOST_RESET_REG_STOP_MASTER);
1530
1531         /* wait stop master not more than 50 usec.
1532          * Otherwise return error. */
1533         for (i = 5; i > 0; i--) {
1534                 udelay(10);
1535
1536                 /* Check master stop bit */
1537                 read_register(priv->net_dev, IPW_REG_RESET_REG, &reg);
1538
1539                 if (reg & IPW_AUX_HOST_RESET_REG_MASTER_DISABLED)
1540                         break;
1541         }
1542
1543         if (i == 0)
1544                 printk(KERN_WARNING DRV_NAME
1545                        ": %s: Could now power down adapter.\n",
1546                        priv->net_dev->name);
1547
1548         /* assert s/w reset */
1549         write_register(priv->net_dev, IPW_REG_RESET_REG,
1550                        IPW_AUX_HOST_RESET_REG_SW_RESET);
1551
1552         priv->status &= ~(STATUS_RUNNING | STATUS_STOPPING);
1553
1554         return 0;
1555 }
1556
1557 static int ipw2100_disable_adapter(struct ipw2100_priv *priv)
1558 {
1559         struct host_command cmd = {
1560                 .host_command = CARD_DISABLE,
1561                 .host_command_sequence = 0,
1562                 .host_command_length = 0
1563         };
1564         int err = 0;
1565
1566         IPW_DEBUG_HC("CARD_DISABLE\n");
1567
1568         if (!(priv->status & STATUS_ENABLED))
1569                 return 0;
1570
1571         /* Make sure we clear the associated state */
1572         priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING);
1573
1574         if (!priv->stop_hang_check) {
1575                 priv->stop_hang_check = 1;
1576                 cancel_delayed_work(&priv->hang_check);
1577         }
1578
1579         down(&priv->adapter_sem);
1580
1581         err = ipw2100_hw_send_command(priv, &cmd);
1582         if (err) {
1583                 printk(KERN_WARNING DRV_NAME
1584                        ": exit - failed to send CARD_DISABLE command\n");
1585                 goto fail_up;
1586         }
1587
1588         err = ipw2100_wait_for_card_state(priv, IPW_HW_STATE_DISABLED);
1589         if (err) {
1590                 printk(KERN_WARNING DRV_NAME
1591                        ": exit - card failed to change to DISABLED\n");
1592                 goto fail_up;
1593         }
1594
1595         IPW_DEBUG_INFO("TODO: implement scan state machine\n");
1596
1597       fail_up:
1598         up(&priv->adapter_sem);
1599         return err;
1600 }
1601
1602 static int ipw2100_set_scan_options(struct ipw2100_priv *priv)
1603 {
1604         struct host_command cmd = {
1605                 .host_command = SET_SCAN_OPTIONS,
1606                 .host_command_sequence = 0,
1607                 .host_command_length = 8
1608         };
1609         int err;
1610
1611         IPW_DEBUG_INFO("enter\n");
1612
1613         IPW_DEBUG_SCAN("setting scan options\n");
1614
1615         cmd.host_command_parameters[0] = 0;
1616
1617         if (!(priv->config & CFG_ASSOCIATE))
1618                 cmd.host_command_parameters[0] |= IPW_SCAN_NOASSOCIATE;
1619         if ((priv->ieee->sec.flags & SEC_ENABLED) && priv->ieee->sec.enabled)
1620                 cmd.host_command_parameters[0] |= IPW_SCAN_MIXED_CELL;
1621         if (priv->config & CFG_PASSIVE_SCAN)
1622                 cmd.host_command_parameters[0] |= IPW_SCAN_PASSIVE;
1623
1624         cmd.host_command_parameters[1] = priv->channel_mask;
1625
1626         err = ipw2100_hw_send_command(priv, &cmd);
1627
1628         IPW_DEBUG_HC("SET_SCAN_OPTIONS 0x%04X\n",
1629                      cmd.host_command_parameters[0]);
1630
1631         return err;
1632 }
1633
1634 static int ipw2100_start_scan(struct ipw2100_priv *priv)
1635 {
1636         struct host_command cmd = {
1637                 .host_command = BROADCAST_SCAN,
1638                 .host_command_sequence = 0,
1639                 .host_command_length = 4
1640         };
1641         int err;
1642
1643         IPW_DEBUG_HC("START_SCAN\n");
1644
1645         cmd.host_command_parameters[0] = 0;
1646
1647         /* No scanning if in monitor mode */
1648         if (priv->ieee->iw_mode == IW_MODE_MONITOR)
1649                 return 1;
1650
1651         if (priv->status & STATUS_SCANNING) {
1652                 IPW_DEBUG_SCAN("Scan requested while already in scan...\n");
1653                 return 0;
1654         }
1655
1656         IPW_DEBUG_INFO("enter\n");
1657
1658         /* Not clearing here; doing so makes iwlist always return nothing...
1659          *
1660          * We should modify the table logic to use aging tables vs. clearing
1661          * the table on each scan start.
1662          */
1663         IPW_DEBUG_SCAN("starting scan\n");
1664
1665         priv->status |= STATUS_SCANNING;
1666         err = ipw2100_hw_send_command(priv, &cmd);
1667         if (err)
1668                 priv->status &= ~STATUS_SCANNING;
1669
1670         IPW_DEBUG_INFO("exit\n");
1671
1672         return err;
1673 }
1674
1675 static int ipw2100_up(struct ipw2100_priv *priv, int deferred)
1676 {
1677         unsigned long flags;
1678         int rc = 0;
1679         u32 lock;
1680         u32 ord_len = sizeof(lock);
1681
1682         /* Quite if manually disabled. */
1683         if (priv->status & STATUS_RF_KILL_SW) {
1684                 IPW_DEBUG_INFO("%s: Radio is disabled by Manual Disable "
1685                                "switch\n", priv->net_dev->name);
1686                 return 0;
1687         }
1688
1689         /* If the interrupt is enabled, turn it off... */
1690         spin_lock_irqsave(&priv->low_lock, flags);
1691         ipw2100_disable_interrupts(priv);
1692
1693         /* Reset any fatal_error conditions */
1694         ipw2100_reset_fatalerror(priv);
1695         spin_unlock_irqrestore(&priv->low_lock, flags);
1696
1697         if (priv->status & STATUS_POWERED ||
1698             (priv->status & STATUS_RESET_PENDING)) {
1699                 /* Power cycle the card ... */
1700                 if (ipw2100_power_cycle_adapter(priv)) {
1701                         printk(KERN_WARNING DRV_NAME
1702                                ": %s: Could not cycle adapter.\n",
1703                                priv->net_dev->name);
1704                         rc = 1;
1705                         goto exit;
1706                 }
1707         } else
1708                 priv->status |= STATUS_POWERED;
1709
1710         /* Load the firmware, start the clocks, etc. */
1711         if (ipw2100_start_adapter(priv)) {
1712                 printk(KERN_ERR DRV_NAME
1713                        ": %s: Failed to start the firmware.\n",
1714                        priv->net_dev->name);
1715                 rc = 1;
1716                 goto exit;
1717         }
1718
1719         ipw2100_initialize_ordinals(priv);
1720
1721         /* Determine capabilities of this particular HW configuration */
1722         if (ipw2100_get_hw_features(priv)) {
1723                 printk(KERN_ERR DRV_NAME
1724                        ": %s: Failed to determine HW features.\n",
1725                        priv->net_dev->name);
1726                 rc = 1;
1727                 goto exit;
1728         }
1729
1730         lock = LOCK_NONE;
1731         if (ipw2100_set_ordinal(priv, IPW_ORD_PERS_DB_LOCK, &lock, &ord_len)) {
1732                 printk(KERN_ERR DRV_NAME
1733                        ": %s: Failed to clear ordinal lock.\n",
1734                        priv->net_dev->name);
1735                 rc = 1;
1736                 goto exit;
1737         }
1738
1739         priv->status &= ~STATUS_SCANNING;
1740
1741         if (rf_kill_active(priv)) {
1742                 printk(KERN_INFO "%s: Radio is disabled by RF switch.\n",
1743                        priv->net_dev->name);
1744
1745                 if (priv->stop_rf_kill) {
1746                         priv->stop_rf_kill = 0;
1747                         queue_delayed_work(priv->workqueue, &priv->rf_kill, HZ);
1748                 }
1749
1750                 deferred = 1;
1751         }
1752
1753         /* Turn on the interrupt so that commands can be processed */
1754         ipw2100_enable_interrupts(priv);
1755
1756         /* Send all of the commands that must be sent prior to
1757          * HOST_COMPLETE */
1758         if (ipw2100_adapter_setup(priv)) {
1759                 printk(KERN_ERR DRV_NAME ": %s: Failed to start the card.\n",
1760                        priv->net_dev->name);
1761                 rc = 1;
1762                 goto exit;
1763         }
1764
1765         if (!deferred) {
1766                 /* Enable the adapter - sends HOST_COMPLETE */
1767                 if (ipw2100_enable_adapter(priv)) {
1768                         printk(KERN_ERR DRV_NAME ": "
1769                                "%s: failed in call to enable adapter.\n",
1770                                priv->net_dev->name);
1771                         ipw2100_hw_stop_adapter(priv);
1772                         rc = 1;
1773                         goto exit;
1774                 }
1775
1776                 /* Start a scan . . . */
1777                 ipw2100_set_scan_options(priv);
1778                 ipw2100_start_scan(priv);
1779         }
1780
1781       exit:
1782         return rc;
1783 }
1784
1785 /* Called by register_netdev() */
1786 static int ipw2100_net_init(struct net_device *dev)
1787 {
1788         struct ipw2100_priv *priv = ieee80211_priv(dev);
1789         return ipw2100_up(priv, 1);
1790 }
1791
1792 static void ipw2100_down(struct ipw2100_priv *priv)
1793 {
1794         unsigned long flags;
1795         union iwreq_data wrqu = {
1796                 .ap_addr = {
1797                             .sa_family = ARPHRD_ETHER}
1798         };
1799         int associated = priv->status & STATUS_ASSOCIATED;
1800
1801         /* Kill the RF switch timer */
1802         if (!priv->stop_rf_kill) {
1803                 priv->stop_rf_kill = 1;
1804                 cancel_delayed_work(&priv->rf_kill);
1805         }
1806
1807         /* Kill the firmare hang check timer */
1808         if (!priv->stop_hang_check) {
1809                 priv->stop_hang_check = 1;
1810                 cancel_delayed_work(&priv->hang_check);
1811         }
1812
1813         /* Kill any pending resets */
1814         if (priv->status & STATUS_RESET_PENDING)
1815                 cancel_delayed_work(&priv->reset_work);
1816
1817         /* Make sure the interrupt is on so that FW commands will be
1818          * processed correctly */
1819         spin_lock_irqsave(&priv->low_lock, flags);
1820         ipw2100_enable_interrupts(priv);
1821         spin_unlock_irqrestore(&priv->low_lock, flags);
1822
1823         if (ipw2100_hw_stop_adapter(priv))
1824                 printk(KERN_ERR DRV_NAME ": %s: Error stopping adapter.\n",
1825                        priv->net_dev->name);
1826
1827         /* Do not disable the interrupt until _after_ we disable
1828          * the adaptor.  Otherwise the CARD_DISABLE command will never
1829          * be ack'd by the firmware */
1830         spin_lock_irqsave(&priv->low_lock, flags);
1831         ipw2100_disable_interrupts(priv);
1832         spin_unlock_irqrestore(&priv->low_lock, flags);
1833
1834 #ifdef ACPI_CSTATE_LIMIT_DEFINED
1835         if (priv->config & CFG_C3_DISABLED) {
1836                 IPW_DEBUG_INFO(": Resetting C3 transitions.\n");
1837                 acpi_set_cstate_limit(priv->cstate_limit);
1838                 priv->config &= ~CFG_C3_DISABLED;
1839         }
1840 #endif
1841
1842         /* We have to signal any supplicant if we are disassociating */
1843         if (associated)
1844                 wireless_send_event(priv->net_dev, SIOCGIWAP, &wrqu, NULL);
1845
1846         priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING);
1847         netif_carrier_off(priv->net_dev);
1848         netif_stop_queue(priv->net_dev);
1849 }
1850
1851 static void ipw2100_reset_adapter(struct ipw2100_priv *priv)
1852 {
1853         unsigned long flags;
1854         union iwreq_data wrqu = {
1855                 .ap_addr = {
1856                             .sa_family = ARPHRD_ETHER}
1857         };
1858         int associated = priv->status & STATUS_ASSOCIATED;
1859
1860         spin_lock_irqsave(&priv->low_lock, flags);
1861         IPW_DEBUG_INFO(": %s: Restarting adapter.\n", priv->net_dev->name);
1862         priv->resets++;
1863         priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING);
1864         priv->status |= STATUS_SECURITY_UPDATED;
1865
1866         /* Force a power cycle even if interface hasn't been opened
1867          * yet */
1868         cancel_delayed_work(&priv->reset_work);
1869         priv->status |= STATUS_RESET_PENDING;
1870         spin_unlock_irqrestore(&priv->low_lock, flags);
1871
1872         down(&priv->action_sem);
1873         /* stop timed checks so that they don't interfere with reset */
1874         priv->stop_hang_check = 1;
1875         cancel_delayed_work(&priv->hang_check);
1876
1877         /* We have to signal any supplicant if we are disassociating */
1878         if (associated)
1879                 wireless_send_event(priv->net_dev, SIOCGIWAP, &wrqu, NULL);
1880
1881         ipw2100_up(priv, 0);
1882         up(&priv->action_sem);
1883
1884 }
1885
1886 static void isr_indicate_associated(struct ipw2100_priv *priv, u32 status)
1887 {
1888
1889 #define MAC_ASSOCIATION_READ_DELAY (HZ)
1890         int ret, len, essid_len;
1891         char essid[IW_ESSID_MAX_SIZE];
1892         u32 txrate;
1893         u32 chan;
1894         char *txratename;
1895         u8 bssid[ETH_ALEN];
1896
1897         /*
1898          * TBD: BSSID is usually 00:00:00:00:00:00 here and not
1899          *      an actual MAC of the AP. Seems like FW sets this
1900          *      address too late. Read it later and expose through
1901          *      /proc or schedule a later task to query and update
1902          */
1903
1904         essid_len = IW_ESSID_MAX_SIZE;
1905         ret = ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_SSID,
1906                                   essid, &essid_len);
1907         if (ret) {
1908                 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
1909                                __LINE__);
1910                 return;
1911         }
1912
1913         len = sizeof(u32);
1914         ret = ipw2100_get_ordinal(priv, IPW_ORD_CURRENT_TX_RATE, &txrate, &len);
1915         if (ret) {
1916                 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
1917                                __LINE__);
1918                 return;
1919         }
1920
1921         len = sizeof(u32);
1922         ret = ipw2100_get_ordinal(priv, IPW_ORD_OUR_FREQ, &chan, &len);
1923         if (ret) {
1924                 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
1925                                __LINE__);
1926                 return;
1927         }
1928         len = ETH_ALEN;
1929         ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_AP_BSSID, &bssid, &len);
1930         if (ret) {
1931                 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
1932                                __LINE__);
1933                 return;
1934         }
1935         memcpy(priv->ieee->bssid, bssid, ETH_ALEN);
1936
1937         switch (txrate) {
1938         case TX_RATE_1_MBIT:
1939                 txratename = "1Mbps";
1940                 break;
1941         case TX_RATE_2_MBIT:
1942                 txratename = "2Mbsp";
1943                 break;
1944         case TX_RATE_5_5_MBIT:
1945                 txratename = "5.5Mbps";
1946                 break;
1947         case TX_RATE_11_MBIT:
1948                 txratename = "11Mbps";
1949                 break;
1950         default:
1951                 IPW_DEBUG_INFO("Unknown rate: %d\n", txrate);
1952                 txratename = "unknown rate";
1953                 break;
1954         }
1955
1956         IPW_DEBUG_INFO("%s: Associated with '%s' at %s, channel %d (BSSID="
1957                        MAC_FMT ")\n",
1958                        priv->net_dev->name, escape_essid(essid, essid_len),
1959                        txratename, chan, MAC_ARG(bssid));
1960
1961         /* now we copy read ssid into dev */
1962         if (!(priv->config & CFG_STATIC_ESSID)) {
1963                 priv->essid_len = min((u8) essid_len, (u8) IW_ESSID_MAX_SIZE);
1964                 memcpy(priv->essid, essid, priv->essid_len);
1965         }
1966         priv->channel = chan;
1967         memcpy(priv->bssid, bssid, ETH_ALEN);
1968
1969         priv->status |= STATUS_ASSOCIATING;
1970         priv->connect_start = get_seconds();
1971
1972         queue_delayed_work(priv->workqueue, &priv->wx_event_work, HZ / 10);
1973 }
1974
1975 static int ipw2100_set_essid(struct ipw2100_priv *priv, char *essid,
1976                              int length, int batch_mode)
1977 {
1978         int ssid_len = min(length, IW_ESSID_MAX_SIZE);
1979         struct host_command cmd = {
1980                 .host_command = SSID,
1981                 .host_command_sequence = 0,
1982                 .host_command_length = ssid_len
1983         };
1984         int err;
1985
1986         IPW_DEBUG_HC("SSID: '%s'\n", escape_essid(essid, ssid_len));
1987
1988         if (ssid_len)
1989                 memcpy(cmd.host_command_parameters, essid, ssid_len);
1990
1991         if (!batch_mode) {
1992                 err = ipw2100_disable_adapter(priv);
1993                 if (err)
1994                         return err;
1995         }
1996
1997         /* Bug in FW currently doesn't honor bit 0 in SET_SCAN_OPTIONS to
1998          * disable auto association -- so we cheat by setting a bogus SSID */
1999         if (!ssid_len && !(priv->config & CFG_ASSOCIATE)) {
2000                 int i;
2001                 u8 *bogus = (u8 *) cmd.host_command_parameters;
2002                 for (i = 0; i < IW_ESSID_MAX_SIZE; i++)
2003                         bogus[i] = 0x18 + i;
2004                 cmd.host_command_length = IW_ESSID_MAX_SIZE;
2005         }
2006
2007         /* NOTE:  We always send the SSID command even if the provided ESSID is
2008          * the same as what we currently think is set. */
2009
2010         err = ipw2100_hw_send_command(priv, &cmd);
2011         if (!err) {
2012                 memset(priv->essid + ssid_len, 0, IW_ESSID_MAX_SIZE - ssid_len);
2013                 memcpy(priv->essid, essid, ssid_len);
2014                 priv->essid_len = ssid_len;
2015         }
2016
2017         if (!batch_mode) {
2018                 if (ipw2100_enable_adapter(priv))
2019                         err = -EIO;
2020         }
2021
2022         return err;
2023 }
2024
2025 static void isr_indicate_association_lost(struct ipw2100_priv *priv, u32 status)
2026 {
2027         IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC,
2028                   "disassociated: '%s' " MAC_FMT " \n",
2029                   escape_essid(priv->essid, priv->essid_len),
2030                   MAC_ARG(priv->bssid));
2031
2032         priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING);
2033
2034         if (priv->status & STATUS_STOPPING) {
2035                 IPW_DEBUG_INFO("Card is stopping itself, discard ASSN_LOST.\n");
2036                 return;
2037         }
2038
2039         memset(priv->bssid, 0, ETH_ALEN);
2040         memset(priv->ieee->bssid, 0, ETH_ALEN);
2041
2042         netif_carrier_off(priv->net_dev);
2043         netif_stop_queue(priv->net_dev);
2044
2045         if (!(priv->status & STATUS_RUNNING))
2046                 return;
2047
2048         if (priv->status & STATUS_SECURITY_UPDATED)
2049                 queue_work(priv->workqueue, &priv->security_work);
2050
2051         queue_work(priv->workqueue, &priv->wx_event_work);
2052 }
2053
2054 static void isr_indicate_rf_kill(struct ipw2100_priv *priv, u32 status)
2055 {
2056         IPW_DEBUG_INFO("%s: RF Kill state changed to radio OFF.\n",
2057                        priv->net_dev->name);
2058
2059         /* RF_KILL is now enabled (else we wouldn't be here) */
2060         priv->status |= STATUS_RF_KILL_HW;
2061
2062 #ifdef ACPI_CSTATE_LIMIT_DEFINED
2063         if (priv->config & CFG_C3_DISABLED) {
2064                 IPW_DEBUG_INFO(": Resetting C3 transitions.\n");
2065                 acpi_set_cstate_limit(priv->cstate_limit);
2066                 priv->config &= ~CFG_C3_DISABLED;
2067         }
2068 #endif
2069
2070         /* Make sure the RF Kill check timer is running */
2071         priv->stop_rf_kill = 0;
2072         cancel_delayed_work(&priv->rf_kill);
2073         queue_delayed_work(priv->workqueue, &priv->rf_kill, HZ);
2074 }
2075
2076 static void isr_scan_complete(struct ipw2100_priv *priv, u32 status)
2077 {
2078         IPW_DEBUG_SCAN("scan complete\n");
2079         /* Age the scan results... */
2080         priv->ieee->scans++;
2081         priv->status &= ~STATUS_SCANNING;
2082 }
2083
2084 #ifdef CONFIG_IPW_DEBUG
2085 #define IPW2100_HANDLER(v, f) { v, f, # v }
2086 struct ipw2100_status_indicator {
2087         int status;
2088         void (*cb) (struct ipw2100_priv * priv, u32 status);
2089         char *name;
2090 };
2091 #else
2092 #define IPW2100_HANDLER(v, f) { v, f }
2093 struct ipw2100_status_indicator {
2094         int status;
2095         void (*cb) (struct ipw2100_priv * priv, u32 status);
2096 };
2097 #endif                          /* CONFIG_IPW_DEBUG */
2098
2099 static void isr_indicate_scanning(struct ipw2100_priv *priv, u32 status)
2100 {
2101         IPW_DEBUG_SCAN("Scanning...\n");
2102         priv->status |= STATUS_SCANNING;
2103 }
2104
2105 static const struct ipw2100_status_indicator status_handlers[] = {
2106         IPW2100_HANDLER(IPW_STATE_INITIALIZED, NULL),
2107         IPW2100_HANDLER(IPW_STATE_COUNTRY_FOUND, NULL),
2108         IPW2100_HANDLER(IPW_STATE_ASSOCIATED, isr_indicate_associated),
2109         IPW2100_HANDLER(IPW_STATE_ASSN_LOST, isr_indicate_association_lost),
2110         IPW2100_HANDLER(IPW_STATE_ASSN_CHANGED, NULL),
2111         IPW2100_HANDLER(IPW_STATE_SCAN_COMPLETE, isr_scan_complete),
2112         IPW2100_HANDLER(IPW_STATE_ENTERED_PSP, NULL),
2113         IPW2100_HANDLER(IPW_STATE_LEFT_PSP, NULL),
2114         IPW2100_HANDLER(IPW_STATE_RF_KILL, isr_indicate_rf_kill),
2115         IPW2100_HANDLER(IPW_STATE_DISABLED, NULL),
2116         IPW2100_HANDLER(IPW_STATE_POWER_DOWN, NULL),
2117         IPW2100_HANDLER(IPW_STATE_SCANNING, isr_indicate_scanning),
2118         IPW2100_HANDLER(-1, NULL)
2119 };
2120
2121 static void isr_status_change(struct ipw2100_priv *priv, int status)
2122 {
2123         int i;
2124
2125         if (status == IPW_STATE_SCANNING &&
2126             priv->status & STATUS_ASSOCIATED &&
2127             !(priv->status & STATUS_SCANNING)) {
2128                 IPW_DEBUG_INFO("Scan detected while associated, with "
2129                                "no scan request.  Restarting firmware.\n");
2130
2131                 /* Wake up any sleeping jobs */
2132                 schedule_reset(priv);
2133         }
2134
2135         for (i = 0; status_handlers[i].status != -1; i++) {
2136                 if (status == status_handlers[i].status) {
2137                         IPW_DEBUG_NOTIF("Status change: %s\n",
2138                                         status_handlers[i].name);
2139                         if (status_handlers[i].cb)
2140                                 status_handlers[i].cb(priv, status);
2141                         priv->wstats.status = status;
2142                         return;
2143                 }
2144         }
2145
2146         IPW_DEBUG_NOTIF("unknown status received: %04x\n", status);
2147 }
2148
2149 static void isr_rx_complete_command(struct ipw2100_priv *priv,
2150                                     struct ipw2100_cmd_header *cmd)
2151 {
2152 #ifdef CONFIG_IPW_DEBUG
2153         if (cmd->host_command_reg < ARRAY_SIZE(command_types)) {
2154                 IPW_DEBUG_HC("Command completed '%s (%d)'\n",
2155                              command_types[cmd->host_command_reg],
2156                              cmd->host_command_reg);
2157         }
2158 #endif
2159         if (cmd->host_command_reg == HOST_COMPLETE)
2160                 priv->status |= STATUS_ENABLED;
2161
2162         if (cmd->host_command_reg == CARD_DISABLE)
2163                 priv->status &= ~STATUS_ENABLED;
2164
2165         priv->status &= ~STATUS_CMD_ACTIVE;
2166
2167         wake_up_interruptible(&priv->wait_command_queue);
2168 }
2169
2170 #ifdef CONFIG_IPW_DEBUG
2171 static const char *frame_types[] = {
2172         "COMMAND_STATUS_VAL",
2173         "STATUS_CHANGE_VAL",
2174         "P80211_DATA_VAL",
2175         "P8023_DATA_VAL",
2176         "HOST_NOTIFICATION_VAL"
2177 };
2178 #endif
2179
2180 static inline int ipw2100_alloc_skb(struct ipw2100_priv *priv,
2181                                     struct ipw2100_rx_packet *packet)
2182 {
2183         packet->skb = dev_alloc_skb(sizeof(struct ipw2100_rx));
2184         if (!packet->skb)
2185                 return -ENOMEM;
2186
2187         packet->rxp = (struct ipw2100_rx *)packet->skb->data;
2188         packet->dma_addr = pci_map_single(priv->pci_dev, packet->skb->data,
2189                                           sizeof(struct ipw2100_rx),
2190                                           PCI_DMA_FROMDEVICE);
2191         /* NOTE: pci_map_single does not return an error code, and 0 is a valid
2192          *       dma_addr */
2193
2194         return 0;
2195 }
2196
2197 #define SEARCH_ERROR   0xffffffff
2198 #define SEARCH_FAIL    0xfffffffe
2199 #define SEARCH_SUCCESS 0xfffffff0
2200 #define SEARCH_DISCARD 0
2201 #define SEARCH_SNAPSHOT 1
2202
2203 #define SNAPSHOT_ADDR(ofs) (priv->snapshot[((ofs) >> 12) & 0xff] + ((ofs) & 0xfff))
2204 static inline int ipw2100_snapshot_alloc(struct ipw2100_priv *priv)
2205 {
2206         int i;
2207         if (priv->snapshot[0])
2208                 return 1;
2209         for (i = 0; i < 0x30; i++) {
2210                 priv->snapshot[i] = (u8 *) kmalloc(0x1000, GFP_ATOMIC);
2211                 if (!priv->snapshot[i]) {
2212                         IPW_DEBUG_INFO("%s: Error allocating snapshot "
2213                                        "buffer %d\n", priv->net_dev->name, i);
2214                         while (i > 0)
2215                                 kfree(priv->snapshot[--i]);
2216                         priv->snapshot[0] = NULL;
2217                         return 0;
2218                 }
2219         }
2220
2221         return 1;
2222 }
2223
2224 static inline void ipw2100_snapshot_free(struct ipw2100_priv *priv)
2225 {
2226         int i;
2227         if (!priv->snapshot[0])
2228                 return;
2229         for (i = 0; i < 0x30; i++)
2230                 kfree(priv->snapshot[i]);
2231         priv->snapshot[0] = NULL;
2232 }
2233
2234 static inline u32 ipw2100_match_buf(struct ipw2100_priv *priv, u8 * in_buf,
2235                                     size_t len, int mode)
2236 {
2237         u32 i, j;
2238         u32 tmp;
2239         u8 *s, *d;
2240         u32 ret;
2241
2242         s = in_buf;
2243         if (mode == SEARCH_SNAPSHOT) {
2244                 if (!ipw2100_snapshot_alloc(priv))
2245                         mode = SEARCH_DISCARD;
2246         }
2247
2248         for (ret = SEARCH_FAIL, i = 0; i < 0x30000; i += 4) {
2249                 read_nic_dword(priv->net_dev, i, &tmp);
2250                 if (mode == SEARCH_SNAPSHOT)
2251                         *(u32 *) SNAPSHOT_ADDR(i) = tmp;
2252                 if (ret == SEARCH_FAIL) {
2253                         d = (u8 *) & tmp;
2254                         for (j = 0; j < 4; j++) {
2255                                 if (*s != *d) {
2256                                         s = in_buf;
2257                                         continue;
2258                                 }
2259
2260                                 s++;
2261                                 d++;
2262
2263                                 if ((s - in_buf) == len)
2264                                         ret = (i + j) - len + 1;
2265                         }
2266                 } else if (mode == SEARCH_DISCARD)
2267                         return ret;
2268         }
2269
2270         return ret;
2271 }
2272
2273 /*
2274  *
2275  * 0) Disconnect the SKB from the firmware (just unmap)
2276  * 1) Pack the ETH header into the SKB
2277  * 2) Pass the SKB to the network stack
2278  *
2279  * When packet is provided by the firmware, it contains the following:
2280  *
2281  * .  ieee80211_hdr
2282  * .  ieee80211_snap_hdr
2283  *
2284  * The size of the constructed ethernet
2285  *
2286  */
2287 #ifdef CONFIG_IPW2100_RX_DEBUG
2288 static u8 packet_data[IPW_RX_NIC_BUFFER_LENGTH];
2289 #endif
2290
2291 static inline void ipw2100_corruption_detected(struct ipw2100_priv *priv, int i)
2292 {
2293 #ifdef CONFIG_IPW_DEBUG_C3
2294         struct ipw2100_status *status = &priv->status_queue.drv[i];
2295         u32 match, reg;
2296         int j;
2297 #endif
2298 #ifdef ACPI_CSTATE_LIMIT_DEFINED
2299         int limit;
2300 #endif
2301
2302         IPW_DEBUG_INFO(": PCI latency error detected at 0x%04zX.\n",
2303                        i * sizeof(struct ipw2100_status));
2304
2305 #ifdef ACPI_CSTATE_LIMIT_DEFINED
2306         IPW_DEBUG_INFO(": Disabling C3 transitions.\n");
2307         limit = acpi_get_cstate_limit();
2308         if (limit > 2) {
2309                 priv->cstate_limit = limit;
2310                 acpi_set_cstate_limit(2);
2311                 priv->config |= CFG_C3_DISABLED;
2312         }
2313 #endif
2314
2315 #ifdef CONFIG_IPW_DEBUG_C3
2316         /* Halt the fimrware so we can get a good image */
2317         write_register(priv->net_dev, IPW_REG_RESET_REG,
2318                        IPW_AUX_HOST_RESET_REG_STOP_MASTER);
2319         j = 5;
2320         do {
2321                 udelay(IPW_WAIT_RESET_MASTER_ASSERT_COMPLETE_DELAY);
2322                 read_register(priv->net_dev, IPW_REG_RESET_REG, &reg);
2323
2324                 if (reg & IPW_AUX_HOST_RESET_REG_MASTER_DISABLED)
2325                         break;
2326         } while (j--);
2327
2328         match = ipw2100_match_buf(priv, (u8 *) status,
2329                                   sizeof(struct ipw2100_status),
2330                                   SEARCH_SNAPSHOT);
2331         if (match < SEARCH_SUCCESS)
2332                 IPW_DEBUG_INFO("%s: DMA status match in Firmware at "
2333                                "offset 0x%06X, length %d:\n",
2334                                priv->net_dev->name, match,
2335                                sizeof(struct ipw2100_status));
2336         else
2337                 IPW_DEBUG_INFO("%s: No DMA status match in "
2338                                "Firmware.\n", priv->net_dev->name);
2339
2340         printk_buf((u8 *) priv->status_queue.drv,
2341                    sizeof(struct ipw2100_status) * RX_QUEUE_LENGTH);
2342 #endif
2343
2344         priv->fatal_error = IPW2100_ERR_C3_CORRUPTION;
2345         priv->ieee->stats.rx_errors++;
2346         schedule_reset(priv);
2347 }
2348
2349 static inline void isr_rx(struct ipw2100_priv *priv, int i,
2350                           struct ieee80211_rx_stats *stats)
2351 {
2352         struct ipw2100_status *status = &priv->status_queue.drv[i];
2353         struct ipw2100_rx_packet *packet = &priv->rx_buffers[i];
2354
2355         IPW_DEBUG_RX("Handler...\n");
2356
2357         if (unlikely(status->frame_size > skb_tailroom(packet->skb))) {
2358                 IPW_DEBUG_INFO("%s: frame_size (%u) > skb_tailroom (%u)!"
2359                                "  Dropping.\n",
2360                                priv->net_dev->name,
2361                                status->frame_size, skb_tailroom(packet->skb));
2362                 priv->ieee->stats.rx_errors++;
2363                 return;
2364         }
2365
2366         if (unlikely(!netif_running(priv->net_dev))) {
2367                 priv->ieee->stats.rx_errors++;
2368                 priv->wstats.discard.misc++;
2369                 IPW_DEBUG_DROP("Dropping packet while interface is not up.\n");
2370                 return;
2371         }
2372 #ifdef CONFIG_IPW2100_MONITOR
2373         if (unlikely(priv->ieee->iw_mode == IW_MODE_MONITOR &&
2374                      priv->config & CFG_CRC_CHECK &&
2375                      status->flags & IPW_STATUS_FLAG_CRC_ERROR)) {
2376                 IPW_DEBUG_RX("CRC error in packet.  Dropping.\n");
2377                 priv->ieee->stats.rx_errors++;
2378                 return;
2379         }
2380 #endif
2381
2382         if (unlikely(priv->ieee->iw_mode != IW_MODE_MONITOR &&
2383                      !(priv->status & STATUS_ASSOCIATED))) {
2384                 IPW_DEBUG_DROP("Dropping packet while not associated.\n");
2385                 priv->wstats.discard.misc++;
2386                 return;
2387         }
2388
2389         pci_unmap_single(priv->pci_dev,
2390                          packet->dma_addr,
2391                          sizeof(struct ipw2100_rx), PCI_DMA_FROMDEVICE);
2392
2393         skb_put(packet->skb, status->frame_size);
2394
2395 #ifdef CONFIG_IPW2100_RX_DEBUG
2396         /* Make a copy of the frame so we can dump it to the logs if
2397          * ieee80211_rx fails */
2398         memcpy(packet_data, packet->skb->data,
2399                min_t(u32, status->frame_size, IPW_RX_NIC_BUFFER_LENGTH));
2400 #endif
2401
2402         if (!ieee80211_rx(priv->ieee, packet->skb, stats)) {
2403 #ifdef CONFIG_IPW2100_RX_DEBUG
2404                 IPW_DEBUG_DROP("%s: Non consumed packet:\n",
2405                                priv->net_dev->name);
2406                 printk_buf(IPW_DL_DROP, packet_data, status->frame_size);
2407 #endif
2408                 priv->ieee->stats.rx_errors++;
2409
2410                 /* ieee80211_rx failed, so it didn't free the SKB */
2411                 dev_kfree_skb_any(packet->skb);
2412                 packet->skb = NULL;
2413         }
2414
2415         /* We need to allocate a new SKB and attach it to the RDB. */
2416         if (unlikely(ipw2100_alloc_skb(priv, packet))) {
2417                 printk(KERN_WARNING DRV_NAME ": "
2418                        "%s: Unable to allocate SKB onto RBD ring - disabling "
2419                        "adapter.\n", priv->net_dev->name);
2420                 /* TODO: schedule adapter shutdown */
2421                 IPW_DEBUG_INFO("TODO: Shutdown adapter...\n");
2422         }
2423
2424         /* Update the RDB entry */
2425         priv->rx_queue.drv[i].host_addr = packet->dma_addr;
2426 }
2427
2428 static inline int ipw2100_corruption_check(struct ipw2100_priv *priv, int i)
2429 {
2430         struct ipw2100_status *status = &priv->status_queue.drv[i];
2431         struct ipw2100_rx *u = priv->rx_buffers[i].rxp;
2432         u16 frame_type = status->status_fields & STATUS_TYPE_MASK;
2433
2434         switch (frame_type) {
2435         case COMMAND_STATUS_VAL:
2436                 return (status->frame_size != sizeof(u->rx_data.command));
2437         case STATUS_CHANGE_VAL:
2438                 return (status->frame_size != sizeof(u->rx_data.status));
2439         case HOST_NOTIFICATION_VAL:
2440                 return (status->frame_size < sizeof(u->rx_data.notification));
2441         case P80211_DATA_VAL:
2442         case P8023_DATA_VAL:
2443 #ifdef CONFIG_IPW2100_MONITOR
2444                 return 0;
2445 #else
2446                 switch (WLAN_FC_GET_TYPE(u->rx_data.header.frame_ctl)) {
2447                 case IEEE80211_FTYPE_MGMT:
2448                 case IEEE80211_FTYPE_CTL:
2449                         return 0;
2450                 case IEEE80211_FTYPE_DATA:
2451                         return (status->frame_size >
2452                                 IPW_MAX_802_11_PAYLOAD_LENGTH);
2453                 }
2454 #endif
2455         }
2456
2457         return 1;
2458 }
2459
2460 /*
2461  * ipw2100 interrupts are disabled at this point, and the ISR
2462  * is the only code that calls this method.  So, we do not need
2463  * to play with any locks.
2464  *
2465  * RX Queue works as follows:
2466  *
2467  * Read index - firmware places packet in entry identified by the
2468  *              Read index and advances Read index.  In this manner,
2469  *              Read index will always point to the next packet to
2470  *              be filled--but not yet valid.
2471  *
2472  * Write index - driver fills this entry with an unused RBD entry.
2473  *               This entry has not filled by the firmware yet.
2474  *
2475  * In between the W and R indexes are the RBDs that have been received
2476  * but not yet processed.
2477  *
2478  * The process of handling packets will start at WRITE + 1 and advance
2479  * until it reaches the READ index.
2480  *
2481  * The WRITE index is cached in the variable 'priv->rx_queue.next'.
2482  *
2483  */
2484 static inline void __ipw2100_rx_process(struct ipw2100_priv *priv)
2485 {
2486         struct ipw2100_bd_queue *rxq = &priv->rx_queue;
2487         struct ipw2100_status_queue *sq = &priv->status_queue;
2488         struct ipw2100_rx_packet *packet;
2489         u16 frame_type;
2490         u32 r, w, i, s;
2491         struct ipw2100_rx *u;
2492         struct ieee80211_rx_stats stats = {
2493                 .mac_time = jiffies,
2494         };
2495
2496         read_register(priv->net_dev, IPW_MEM_HOST_SHARED_RX_READ_INDEX, &r);
2497         read_register(priv->net_dev, IPW_MEM_HOST_SHARED_RX_WRITE_INDEX, &w);
2498
2499         if (r >= rxq->entries) {
2500                 IPW_DEBUG_RX("exit - bad read index\n");
2501                 return;
2502         }
2503
2504         i = (rxq->next + 1) % rxq->entries;
2505         s = i;
2506         while (i != r) {
2507                 /* IPW_DEBUG_RX("r = %d : w = %d : processing = %d\n",
2508                    r, rxq->next, i); */
2509
2510                 packet = &priv->rx_buffers[i];
2511
2512                 /* Sync the DMA for the STATUS buffer so CPU is sure to get
2513                  * the correct values */
2514                 pci_dma_sync_single_for_cpu(priv->pci_dev,
2515                                             sq->nic +
2516                                             sizeof(struct ipw2100_status) * i,
2517                                             sizeof(struct ipw2100_status),
2518                                             PCI_DMA_FROMDEVICE);
2519
2520                 /* Sync the DMA for the RX buffer so CPU is sure to get
2521                  * the correct values */
2522                 pci_dma_sync_single_for_cpu(priv->pci_dev, packet->dma_addr,
2523                                             sizeof(struct ipw2100_rx),
2524                                             PCI_DMA_FROMDEVICE);
2525
2526                 if (unlikely(ipw2100_corruption_check(priv, i))) {
2527                         ipw2100_corruption_detected(priv, i);
2528                         goto increment;
2529                 }
2530
2531                 u = packet->rxp;
2532                 frame_type = sq->drv[i].status_fields & STATUS_TYPE_MASK;
2533                 stats.rssi = sq->drv[i].rssi + IPW2100_RSSI_TO_DBM;
2534                 stats.len = sq->drv[i].frame_size;
2535
2536                 stats.mask = 0;
2537                 if (stats.rssi != 0)
2538                         stats.mask |= IEEE80211_STATMASK_RSSI;
2539                 stats.freq = IEEE80211_24GHZ_BAND;
2540
2541                 IPW_DEBUG_RX("%s: '%s' frame type received (%d).\n",
2542                              priv->net_dev->name, frame_types[frame_type],
2543                              stats.len);
2544
2545                 switch (frame_type) {
2546                 case COMMAND_STATUS_VAL:
2547                         /* Reset Rx watchdog */
2548                         isr_rx_complete_command(priv, &u->rx_data.command);
2549                         break;
2550
2551                 case STATUS_CHANGE_VAL:
2552                         isr_status_change(priv, u->rx_data.status);
2553                         break;
2554
2555                 case P80211_DATA_VAL:
2556                 case P8023_DATA_VAL:
2557 #ifdef CONFIG_IPW2100_MONITOR
2558                         if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
2559                                 isr_rx(priv, i, &stats);
2560                                 break;
2561                         }
2562 #endif
2563                         if (stats.len < sizeof(u->rx_data.header))
2564                                 break;
2565                         switch (WLAN_FC_GET_TYPE(u->rx_data.header.frame_ctl)) {
2566                         case IEEE80211_FTYPE_MGMT:
2567                                 ieee80211_rx_mgt(priv->ieee,
2568                                                  &u->rx_data.header, &stats);
2569                                 break;
2570
2571                         case IEEE80211_FTYPE_CTL:
2572                                 break;
2573
2574                         case IEEE80211_FTYPE_DATA:
2575                                 isr_rx(priv, i, &stats);
2576                                 break;
2577
2578                         }
2579                         break;
2580                 }
2581
2582               increment:
2583                 /* clear status field associated with this RBD */
2584                 rxq->drv[i].status.info.field = 0;
2585
2586                 i = (i + 1) % rxq->entries;
2587         }
2588
2589         if (i != s) {
2590                 /* backtrack one entry, wrapping to end if at 0 */
2591                 rxq->next = (i ? i : rxq->entries) - 1;
2592
2593                 write_register(priv->net_dev,
2594                                IPW_MEM_HOST_SHARED_RX_WRITE_INDEX, rxq->next);
2595         }
2596 }
2597
2598 /*
2599  * __ipw2100_tx_process
2600  *
2601  * This routine will determine whether the next packet on
2602  * the fw_pend_list has been processed by the firmware yet.
2603  *
2604  * If not, then it does nothing and returns.
2605  *
2606  * If so, then it removes the item from the fw_pend_list, frees
2607  * any associated storage, and places the item back on the
2608  * free list of its source (either msg_free_list or tx_free_list)
2609  *
2610  * TX Queue works as follows:
2611  *
2612  * Read index - points to the next TBD that the firmware will
2613  *              process.  The firmware will read the data, and once
2614  *              done processing, it will advance the Read index.
2615  *
2616  * Write index - driver fills this entry with an constructed TBD
2617  *               entry.  The Write index is not advanced until the
2618  *               packet has been configured.
2619  *
2620  * In between the W and R indexes are the TBDs that have NOT been
2621  * processed.  Lagging behind the R index are packets that have
2622  * been processed but have not been freed by the driver.
2623  *
2624  * In order to free old storage, an internal index will be maintained
2625  * that points to the next packet to be freed.  When all used
2626  * packets have been freed, the oldest index will be the same as the
2627  * firmware's read index.
2628  *
2629  * The OLDEST index is cached in the variable 'priv->tx_queue.oldest'
2630  *
2631  * Because the TBD structure can not contain arbitrary data, the
2632  * driver must keep an internal queue of cached allocations such that
2633  * it can put that data back into the tx_free_list and msg_free_list
2634  * for use by future command and data packets.
2635  *
2636  */
2637 static inline int __ipw2100_tx_process(struct ipw2100_priv *priv)
2638 {
2639         struct ipw2100_bd_queue *txq = &priv->tx_queue;
2640         struct ipw2100_bd *tbd;
2641         struct list_head *element;
2642         struct ipw2100_tx_packet *packet;
2643         int descriptors_used;
2644         int e, i;
2645         u32 r, w, frag_num = 0;
2646
2647         if (list_empty(&priv->fw_pend_list))
2648                 return 0;
2649
2650         element = priv->fw_pend_list.next;
2651
2652         packet = list_entry(element, struct ipw2100_tx_packet, list);
2653         tbd = &txq->drv[packet->index];
2654
2655         /* Determine how many TBD entries must be finished... */
2656         switch (packet->type) {
2657         case COMMAND:
2658                 /* COMMAND uses only one slot; don't advance */
2659                 descriptors_used = 1;
2660                 e = txq->oldest;
2661                 break;
2662
2663         case DATA:
2664                 /* DATA uses two slots; advance and loop position. */
2665                 descriptors_used = tbd->num_fragments;
2666                 frag_num = tbd->num_fragments - 1;
2667                 e = txq->oldest + frag_num;
2668                 e %= txq->entries;
2669                 break;
2670
2671         default:
2672                 printk(KERN_WARNING DRV_NAME ": %s: Bad fw_pend_list entry!\n",
2673                        priv->net_dev->name);
2674                 return 0;
2675         }
2676
2677         /* if the last TBD is not done by NIC yet, then packet is
2678          * not ready to be released.
2679          *
2680          */
2681         read_register(priv->net_dev, IPW_MEM_HOST_SHARED_TX_QUEUE_READ_INDEX,
2682                       &r);
2683         read_register(priv->net_dev, IPW_MEM_HOST_SHARED_TX_QUEUE_WRITE_INDEX,
2684                       &w);
2685         if (w != txq->next)
2686                 printk(KERN_WARNING DRV_NAME ": %s: write index mismatch\n",
2687                        priv->net_dev->name);
2688
2689         /*
2690          * txq->next is the index of the last packet written txq->oldest is
2691          * the index of the r is the index of the next packet to be read by
2692          * firmware
2693          */
2694
2695         /*
2696          * Quick graphic to help you visualize the following
2697          * if / else statement
2698          *
2699          * ===>|                     s---->|===============
2700          *                               e>|
2701          * | a | b | c | d | e | f | g | h | i | j | k | l
2702          *       r---->|
2703          *               w
2704          *
2705          * w - updated by driver
2706          * r - updated by firmware
2707          * s - start of oldest BD entry (txq->oldest)
2708          * e - end of oldest BD entry
2709          *
2710          */
2711         if (!((r <= w && (e < r || e >= w)) || (e < r && e >= w))) {
2712                 IPW_DEBUG_TX("exit - no processed packets ready to release.\n");
2713                 return 0;
2714         }
2715
2716         list_del(element);
2717         DEC_STAT(&priv->fw_pend_stat);
2718
2719 #ifdef CONFIG_IPW_DEBUG
2720         {
2721                 int i = txq->oldest;
2722                 IPW_DEBUG_TX("TX%d V=%p P=%04X T=%04X L=%d\n", i,
2723                              &txq->drv[i],
2724                              (u32) (txq->nic + i * sizeof(struct ipw2100_bd)),
2725                              txq->drv[i].host_addr, txq->drv[i].buf_length);
2726
2727                 if (packet->type == DATA) {
2728                         i = (i + 1) % txq->entries;
2729
2730                         IPW_DEBUG_TX("TX%d V=%p P=%04X T=%04X L=%d\n", i,
2731                                      &txq->drv[i],
2732                                      (u32) (txq->nic + i *
2733                                             sizeof(struct ipw2100_bd)),
2734                                      (u32) txq->drv[i].host_addr,
2735                                      txq->drv[i].buf_length);
2736                 }
2737         }
2738 #endif
2739
2740         switch (packet->type) {
2741         case DATA:
2742                 if (txq->drv[txq->oldest].status.info.fields.txType != 0)
2743                         printk(KERN_WARNING DRV_NAME ": %s: Queue mismatch.  "
2744                                "Expecting DATA TBD but pulled "
2745                                "something else: ids %d=%d.\n",
2746                                priv->net_dev->name, txq->oldest, packet->index);
2747
2748                 /* DATA packet; we have to unmap and free the SKB */
2749                 for (i = 0; i < frag_num; i++) {
2750                         tbd = &txq->drv[(packet->index + 1 + i) % txq->entries];
2751
2752                         IPW_DEBUG_TX("TX%d P=%08x L=%d\n",
2753                                      (packet->index + 1 + i) % txq->entries,
2754                                      tbd->host_addr, tbd->buf_length);
2755
2756                         pci_unmap_single(priv->pci_dev,
2757                                          tbd->host_addr,
2758                                          tbd->buf_length, PCI_DMA_TODEVICE);
2759                 }
2760
2761                 ieee80211_txb_free(packet->info.d_struct.txb);
2762                 packet->info.d_struct.txb = NULL;
2763
2764                 list_add_tail(element, &priv->tx_free_list);
2765                 INC_STAT(&priv->tx_free_stat);
2766
2767                 /* We have a free slot in the Tx queue, so wake up the
2768                  * transmit layer if it is stopped. */
2769                 if (priv->status & STATUS_ASSOCIATED)
2770                         netif_wake_queue(priv->net_dev);
2771
2772                 /* A packet was processed by the hardware, so update the
2773                  * watchdog */
2774                 priv->net_dev->trans_start = jiffies;
2775
2776                 break;
2777
2778         case COMMAND:
2779                 if (txq->drv[txq->oldest].status.info.fields.txType != 1)
2780                         printk(KERN_WARNING DRV_NAME ": %s: Queue mismatch.  "
2781                                "Expecting COMMAND TBD but pulled "
2782                                "something else: ids %d=%d.\n",
2783                                priv->net_dev->name, txq->oldest, packet->index);
2784
2785 #ifdef CONFIG_IPW_DEBUG
2786                 if (packet->info.c_struct.cmd->host_command_reg <
2787                     sizeof(command_types) / sizeof(*command_types))
2788                         IPW_DEBUG_TX("Command '%s (%d)' processed: %d.\n",
2789                                      command_types[packet->info.c_struct.cmd->
2790                                                    host_command_reg],
2791                                      packet->info.c_struct.cmd->
2792                                      host_command_reg,
2793                                      packet->info.c_struct.cmd->cmd_status_reg);
2794 #endif
2795
2796                 list_add_tail(element, &priv->msg_free_list);
2797                 INC_STAT(&priv->msg_free_stat);
2798                 break;
2799         }
2800
2801         /* advance oldest used TBD pointer to start of next entry */
2802         txq->oldest = (e + 1) % txq->entries;
2803         /* increase available TBDs number */
2804         txq->available += descriptors_used;
2805         SET_STAT(&priv->txq_stat, txq->available);
2806
2807         IPW_DEBUG_TX("packet latency (send to process)  %ld jiffies\n",
2808                      jiffies - packet->jiffy_start);
2809
2810         return (!list_empty(&priv->fw_pend_list));
2811 }
2812
2813 static inline void __ipw2100_tx_complete(struct ipw2100_priv *priv)
2814 {
2815         int i = 0;
2816
2817         while (__ipw2100_tx_process(priv) && i < 200)
2818                 i++;
2819
2820         if (i == 200) {
2821                 printk(KERN_WARNING DRV_NAME ": "
2822                        "%s: Driver is running slow (%d iters).\n",
2823                        priv->net_dev->name, i);
2824         }
2825 }
2826
2827 static void ipw2100_tx_send_commands(struct ipw2100_priv *priv)
2828 {
2829         struct list_head *element;
2830         struct ipw2100_tx_packet *packet;
2831         struct ipw2100_bd_queue *txq = &priv->tx_queue;
2832         struct ipw2100_bd *tbd;
2833         int next = txq->next;
2834
2835         while (!list_empty(&priv->msg_pend_list)) {
2836                 /* if there isn't enough space in TBD queue, then
2837                  * don't stuff a new one in.
2838                  * NOTE: 3 are needed as a command will take one,
2839                  *       and there is a minimum of 2 that must be
2840                  *       maintained between the r and w indexes
2841                  */
2842                 if (txq->available <= 3) {
2843                         IPW_DEBUG_TX("no room in tx_queue\n");
2844                         break;
2845                 }
2846
2847                 element = priv->msg_pend_list.next;
2848                 list_del(element);
2849                 DEC_STAT(&priv->msg_pend_stat);
2850
2851                 packet = list_entry(element, struct ipw2100_tx_packet, list);
2852
2853                 IPW_DEBUG_TX("using TBD at virt=%p, phys=%p\n",
2854                              &txq->drv[txq->next],
2855                              (void *)(txq->nic + txq->next *
2856                                       sizeof(struct ipw2100_bd)));
2857
2858                 packet->index = txq->next;
2859
2860                 tbd = &txq->drv[txq->next];
2861
2862                 /* initialize TBD */
2863                 tbd->host_addr = packet->info.c_struct.cmd_phys;
2864                 tbd->buf_length = sizeof(struct ipw2100_cmd_header);
2865                 /* not marking number of fragments causes problems
2866                  * with f/w debug version */
2867                 tbd->num_fragments = 1;
2868                 tbd->status.info.field =
2869                     IPW_BD_STATUS_TX_FRAME_COMMAND |
2870                     IPW_BD_STATUS_TX_INTERRUPT_ENABLE;
2871
2872                 /* update TBD queue counters */
2873                 txq->next++;
2874                 txq->next %= txq->entries;
2875                 txq->available--;
2876                 DEC_STAT(&priv->txq_stat);
2877
2878                 list_add_tail(element, &priv->fw_pend_list);
2879                 INC_STAT(&priv->fw_pend_stat);
2880         }
2881
2882         if (txq->next != next) {
2883                 /* kick off the DMA by notifying firmware the
2884                  * write index has moved; make sure TBD stores are sync'd */
2885                 wmb();
2886                 write_register(priv->net_dev,
2887                                IPW_MEM_HOST_SHARED_TX_QUEUE_WRITE_INDEX,
2888                                txq->next);
2889         }
2890 }
2891
2892 /*
2893  * ipw2100_tx_send_data
2894  *
2895  */
2896 static void ipw2100_tx_send_data(struct ipw2100_priv *priv)
2897 {
2898         struct list_head *element;
2899         struct ipw2100_tx_packet *packet;
2900         struct ipw2100_bd_queue *txq = &priv->tx_queue;
2901         struct ipw2100_bd *tbd;
2902         int next = txq->next;
2903         int i = 0;
2904         struct ipw2100_data_header *ipw_hdr;
2905         struct ieee80211_hdr_3addr *hdr;
2906
2907         while (!list_empty(&priv->tx_pend_list)) {
2908                 /* if there isn't enough space in TBD queue, then
2909                  * don't stuff a new one in.
2910                  * NOTE: 4 are needed as a data will take two,
2911                  *       and there is a minimum of 2 that must be
2912                  *       maintained between the r and w indexes
2913                  */
2914                 element = priv->tx_pend_list.next;
2915                 packet = list_entry(element, struct ipw2100_tx_packet, list);
2916
2917                 if (unlikely(1 + packet->info.d_struct.txb->nr_frags >
2918                              IPW_MAX_BDS)) {
2919                         /* TODO: Support merging buffers if more than
2920                          * IPW_MAX_BDS are used */
2921                         IPW_DEBUG_INFO("%s: Maximum BD theshold exceeded.  "
2922                                        "Increase fragmentation level.\n",
2923                                        priv->net_dev->name);
2924                 }
2925
2926                 if (txq->available <= 3 + packet->info.d_struct.txb->nr_frags) {
2927                         IPW_DEBUG_TX("no room in tx_queue\n");
2928                         break;
2929                 }
2930
2931                 list_del(element);
2932                 DEC_STAT(&priv->tx_pend_stat);
2933
2934                 tbd = &txq->drv[txq->next];
2935
2936                 packet->index = txq->next;
2937
2938                 ipw_hdr = packet->info.d_struct.data;
2939                 hdr = (struct ieee80211_hdr_3addr *)packet->info.d_struct.txb->
2940                     fragments[0]->data;
2941
2942                 if (priv->ieee->iw_mode == IW_MODE_INFRA) {
2943                         /* To DS: Addr1 = BSSID, Addr2 = SA,
2944                            Addr3 = DA */
2945                         memcpy(ipw_hdr->src_addr, hdr->addr2, ETH_ALEN);
2946                         memcpy(ipw_hdr->dst_addr, hdr->addr3, ETH_ALEN);
2947                 } else if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
2948                         /* not From/To DS: Addr1 = DA, Addr2 = SA,
2949                            Addr3 = BSSID */
2950                         memcpy(ipw_hdr->src_addr, hdr->addr2, ETH_ALEN);
2951                         memcpy(ipw_hdr->dst_addr, hdr->addr1, ETH_ALEN);
2952                 }
2953
2954                 ipw_hdr->host_command_reg = SEND;
2955                 ipw_hdr->host_command_reg1 = 0;
2956
2957                 /* For now we only support host based encryption */
2958                 ipw_hdr->needs_encryption = 0;
2959                 ipw_hdr->encrypted = packet->info.d_struct.txb->encrypted;
2960                 if (packet->info.d_struct.txb->nr_frags > 1)
2961                         ipw_hdr->fragment_size =
2962                             packet->info.d_struct.txb->frag_size -
2963                             IEEE80211_3ADDR_LEN;
2964                 else
2965                         ipw_hdr->fragment_size = 0;
2966
2967                 tbd->host_addr = packet->info.d_struct.data_phys;
2968                 tbd->buf_length = sizeof(struct ipw2100_data_header);
2969                 tbd->num_fragments = 1 + packet->info.d_struct.txb->nr_frags;
2970                 tbd->status.info.field =
2971                     IPW_BD_STATUS_TX_FRAME_802_3 |
2972                     IPW_BD_STATUS_TX_FRAME_NOT_LAST_FRAGMENT;
2973                 txq->next++;
2974                 txq->next %= txq->entries;
2975
2976                 IPW_DEBUG_TX("data header tbd TX%d P=%08x L=%d\n",
2977                              packet->index, tbd->host_addr, tbd->buf_length);
2978 #ifdef CONFIG_IPW_DEBUG
2979                 if (packet->info.d_struct.txb->nr_frags > 1)
2980                         IPW_DEBUG_FRAG("fragment Tx: %d frames\n",
2981                                        packet->info.d_struct.txb->nr_frags);
2982 #endif
2983
2984                 for (i = 0; i < packet->info.d_struct.txb->nr_frags; i++) {
2985                         tbd = &txq->drv[txq->next];
2986                         if (i == packet->info.d_struct.txb->nr_frags - 1)
2987                                 tbd->status.info.field =
2988                                     IPW_BD_STATUS_TX_FRAME_802_3 |
2989                                     IPW_BD_STATUS_TX_INTERRUPT_ENABLE;
2990                         else
2991                                 tbd->status.info.field =
2992                                     IPW_BD_STATUS_TX_FRAME_802_3 |
2993                                     IPW_BD_STATUS_TX_FRAME_NOT_LAST_FRAGMENT;
2994
2995                         tbd->buf_length = packet->info.d_struct.txb->
2996                             fragments[i]->len - IEEE80211_3ADDR_LEN;
2997
2998                         tbd->host_addr = pci_map_single(priv->pci_dev,
2999                                                         packet->info.d_struct.
3000                                                         txb->fragments[i]->
3001                                                         data +
3002                                                         IEEE80211_3ADDR_LEN,
3003                                                         tbd->buf_length,
3004                                                         PCI_DMA_TODEVICE);
3005
3006                         IPW_DEBUG_TX("data frag tbd TX%d P=%08x L=%d\n",
3007                                      txq->next, tbd->host_addr,
3008                                      tbd->buf_length);
3009
3010                         pci_dma_sync_single_for_device(priv->pci_dev,
3011                                                        tbd->host_addr,
3012                                                        tbd->buf_length,
3013                                                        PCI_DMA_TODEVICE);
3014
3015                         txq->next++;
3016                         txq->next %= txq->entries;
3017                 }
3018
3019                 txq->available -= 1 + packet->info.d_struct.txb->nr_frags;
3020                 SET_STAT(&priv->txq_stat, txq->available);
3021
3022                 list_add_tail(element, &priv->fw_pend_list);
3023                 INC_STAT(&priv->fw_pend_stat);
3024         }
3025
3026         if (txq->next != next) {
3027                 /* kick off the DMA by notifying firmware the
3028                  * write index has moved; make sure TBD stores are sync'd */
3029                 write_register(priv->net_dev,
3030                                IPW_MEM_HOST_SHARED_TX_QUEUE_WRITE_INDEX,
3031                                txq->next);
3032         }
3033         return;
3034 }
3035
3036 static void ipw2100_irq_tasklet(struct ipw2100_priv *priv)
3037 {
3038         struct net_device *dev = priv->net_dev;
3039         unsigned long flags;
3040         u32 inta, tmp;
3041
3042         spin_lock_irqsave(&priv->low_lock, flags);
3043         ipw2100_disable_interrupts(priv);
3044
3045         read_register(dev, IPW_REG_INTA, &inta);
3046
3047         IPW_DEBUG_ISR("enter - INTA: 0x%08lX\n",
3048                       (unsigned long)inta & IPW_INTERRUPT_MASK);
3049
3050         priv->in_isr++;
3051         priv->interrupts++;
3052
3053         /* We do not loop and keep polling for more interrupts as this
3054          * is frowned upon and doesn't play nicely with other potentially
3055          * chained IRQs */
3056         IPW_DEBUG_ISR("INTA: 0x%08lX\n",
3057                       (unsigned long)inta & IPW_INTERRUPT_MASK);
3058
3059         if (inta & IPW2100_INTA_FATAL_ERROR) {
3060                 printk(KERN_WARNING DRV_NAME
3061                        ": Fatal interrupt. Scheduling firmware restart.\n");
3062                 priv->inta_other++;
3063                 write_register(dev, IPW_REG_INTA, IPW2100_INTA_FATAL_ERROR);
3064
3065                 read_nic_dword(dev, IPW_NIC_FATAL_ERROR, &priv->fatal_error);
3066                 IPW_DEBUG_INFO("%s: Fatal error value: 0x%08X\n",
3067                                priv->net_dev->name, priv->fatal_error);
3068
3069                 read_nic_dword(dev, IPW_ERROR_ADDR(priv->fatal_error), &tmp);
3070                 IPW_DEBUG_INFO("%s: Fatal error address value: 0x%08X\n",
3071                                priv->net_dev->name, tmp);
3072
3073                 /* Wake up any sleeping jobs */
3074                 schedule_reset(priv);
3075         }
3076
3077         if (inta & IPW2100_INTA_PARITY_ERROR) {
3078                 printk(KERN_ERR DRV_NAME
3079                        ": ***** PARITY ERROR INTERRUPT !!!! \n");
3080                 priv->inta_other++;
3081                 write_register(dev, IPW_REG_INTA, IPW2100_INTA_PARITY_ERROR);
3082         }
3083
3084         if (inta & IPW2100_INTA_RX_TRANSFER) {
3085                 IPW_DEBUG_ISR("RX interrupt\n");
3086
3087                 priv->rx_interrupts++;
3088
3089                 write_register(dev, IPW_REG_INTA, IPW2100_INTA_RX_TRANSFER);
3090
3091                 __ipw2100_rx_process(priv);
3092                 __ipw2100_tx_complete(priv);
3093         }
3094
3095         if (inta & IPW2100_INTA_TX_TRANSFER) {
3096                 IPW_DEBUG_ISR("TX interrupt\n");
3097
3098                 priv->tx_interrupts++;
3099
3100                 write_register(dev, IPW_REG_INTA, IPW2100_INTA_TX_TRANSFER);
3101
3102                 __ipw2100_tx_complete(priv);
3103                 ipw2100_tx_send_commands(priv);
3104                 ipw2100_tx_send_data(priv);
3105         }
3106
3107         if (inta & IPW2100_INTA_TX_COMPLETE) {
3108                 IPW_DEBUG_ISR("TX complete\n");
3109                 priv->inta_other++;
3110                 write_register(dev, IPW_REG_INTA, IPW2100_INTA_TX_COMPLETE);
3111
3112                 __ipw2100_tx_complete(priv);
3113         }
3114
3115         if (inta & IPW2100_INTA_EVENT_INTERRUPT) {
3116                 /* ipw2100_handle_event(dev); */
3117                 priv->inta_other++;
3118                 write_register(dev, IPW_REG_INTA, IPW2100_INTA_EVENT_INTERRUPT);
3119         }
3120
3121         if (inta & IPW2100_INTA_FW_INIT_DONE) {
3122                 IPW_DEBUG_ISR("FW init done interrupt\n");
3123                 priv->inta_other++;
3124
3125                 read_register(dev, IPW_REG_INTA, &tmp);
3126                 if (tmp & (IPW2100_INTA_FATAL_ERROR |
3127                            IPW2100_INTA_PARITY_ERROR)) {
3128                         write_register(dev, IPW_REG_INTA,
3129                                        IPW2100_INTA_FATAL_ERROR |
3130                                        IPW2100_INTA_PARITY_ERROR);
3131                 }
3132
3133                 write_register(dev, IPW_REG_INTA, IPW2100_INTA_FW_INIT_DONE);
3134         }
3135
3136         if (inta & IPW2100_INTA_STATUS_CHANGE) {
3137                 IPW_DEBUG_ISR("Status change interrupt\n");
3138                 priv->inta_other++;
3139                 write_register(dev, IPW_REG_INTA, IPW2100_INTA_STATUS_CHANGE);
3140         }
3141
3142         if (inta & IPW2100_INTA_SLAVE_MODE_HOST_COMMAND_DONE) {
3143                 IPW_DEBUG_ISR("slave host mode interrupt\n");
3144                 priv->inta_other++;
3145                 write_register(dev, IPW_REG_INTA,
3146                                IPW2100_INTA_SLAVE_MODE_HOST_COMMAND_DONE);
3147         }
3148
3149         priv->in_isr--;
3150         ipw2100_enable_interrupts(priv);
3151
3152         spin_unlock_irqrestore(&priv->low_lock, flags);
3153
3154         IPW_DEBUG_ISR("exit\n");
3155 }
3156
3157 static irqreturn_t ipw2100_interrupt(int irq, void *data, struct pt_regs *regs)
3158 {
3159         struct ipw2100_priv *priv = data;
3160         u32 inta, inta_mask;
3161
3162         if (!data)
3163                 return IRQ_NONE;
3164
3165         spin_lock(&priv->low_lock);
3166
3167         /* We check to see if we should be ignoring interrupts before
3168          * we touch the hardware.  During ucode load if we try and handle
3169          * an interrupt we can cause keyboard problems as well as cause
3170          * the ucode to fail to initialize */
3171         if (!(priv->status & STATUS_INT_ENABLED)) {
3172                 /* Shared IRQ */
3173                 goto none;
3174         }
3175
3176         read_register(priv->net_dev, IPW_REG_INTA_MASK, &inta_mask);
3177         read_register(priv->net_dev, IPW_REG_INTA, &inta);
3178
3179         if (inta == 0xFFFFFFFF) {
3180                 /* Hardware disappeared */
3181                 printk(KERN_WARNING DRV_NAME ": IRQ INTA == 0xFFFFFFFF\n");
3182                 goto none;
3183         }
3184
3185         inta &= IPW_INTERRUPT_MASK;
3186
3187         if (!(inta & inta_mask)) {
3188                 /* Shared interrupt */
3189                 goto none;
3190         }
3191
3192         /* We disable the hardware interrupt here just to prevent unneeded
3193          * calls to be made.  We disable this again within the actual
3194          * work tasklet, so if another part of the code re-enables the
3195          * interrupt, that is fine */
3196         ipw2100_disable_interrupts(priv);
3197
3198         tasklet_schedule(&priv->irq_tasklet);
3199         spin_unlock(&priv->low_lock);
3200
3201         return IRQ_HANDLED;
3202       none:
3203         spin_unlock(&priv->low_lock);
3204         return IRQ_NONE;
3205 }
3206
3207 static int ipw2100_tx(struct ieee80211_txb *txb, struct net_device *dev,
3208                       int pri)
3209 {
3210         struct ipw2100_priv *priv = ieee80211_priv(dev);
3211         struct list_head *element;
3212         struct ipw2100_tx_packet *packet;
3213         unsigned long flags;
3214
3215         spin_lock_irqsave(&priv->low_lock, flags);
3216
3217         if (!(priv->status & STATUS_ASSOCIATED)) {
3218                 IPW_DEBUG_INFO("Can not transmit when not connected.\n");
3219                 priv->ieee->stats.tx_carrier_errors++;
3220                 netif_stop_queue(dev);
3221                 goto fail_unlock;
3222         }
3223
3224         if (list_empty(&priv->tx_free_list))
3225                 goto fail_unlock;
3226
3227         element = priv->tx_free_list.next;
3228         packet = list_entry(element, struct ipw2100_tx_packet, list);
3229
3230         packet->info.d_struct.txb = txb;
3231
3232         IPW_DEBUG_TX("Sending fragment (%d bytes):\n", txb->fragments[0]->len);
3233         printk_buf(IPW_DL_TX, txb->fragments[0]->data, txb->fragments[0]->len);
3234
3235         packet->jiffy_start = jiffies;
3236
3237         list_del(element);
3238         DEC_STAT(&priv->tx_free_stat);
3239
3240         list_add_tail(element, &priv->tx_pend_list);
3241         INC_STAT(&priv->tx_pend_stat);
3242
3243         ipw2100_tx_send_data(priv);
3244
3245         spin_unlock_irqrestore(&priv->low_lock, flags);
3246         return 0;
3247
3248       fail_unlock:
3249         netif_stop_queue(dev);
3250         spin_unlock_irqrestore(&priv->low_lock, flags);
3251         return 1;
3252 }
3253
3254 static int ipw2100_msg_allocate(struct ipw2100_priv *priv)
3255 {
3256         int i, j, err = -EINVAL;
3257         void *v;
3258         dma_addr_t p;
3259
3260         priv->msg_buffers =
3261             (struct ipw2100_tx_packet *)kmalloc(IPW_COMMAND_POOL_SIZE *
3262                                                 sizeof(struct
3263                                                        ipw2100_tx_packet),
3264                                                 GFP_KERNEL);
3265         if (!priv->msg_buffers) {
3266                 printk(KERN_ERR DRV_NAME ": %s: PCI alloc failed for msg "
3267                        "buffers.\n", priv->net_dev->name);
3268                 return -ENOMEM;
3269         }
3270
3271         for (i = 0; i < IPW_COMMAND_POOL_SIZE; i++) {
3272                 v = pci_alloc_consistent(priv->pci_dev,
3273                                          sizeof(struct ipw2100_cmd_header), &p);
3274                 if (!v) {
3275                         printk(KERN_ERR DRV_NAME ": "
3276                                "%s: PCI alloc failed for msg "
3277                                "buffers.\n", priv->net_dev->name);
3278                         err = -ENOMEM;
3279                         break;
3280                 }
3281
3282                 memset(v, 0, sizeof(struct ipw2100_cmd_header));
3283
3284                 priv->msg_buffers[i].type = COMMAND;
3285                 priv->msg_buffers[i].info.c_struct.cmd =
3286                     (struct ipw2100_cmd_header *)v;
3287                 priv->msg_buffers[i].info.c_struct.cmd_phys = p;
3288         }
3289
3290         if (i == IPW_COMMAND_POOL_SIZE)
3291                 return 0;
3292
3293         for (j = 0; j < i; j++) {
3294                 pci_free_consistent(priv->pci_dev,
3295                                     sizeof(struct ipw2100_cmd_header),
3296                                     priv->msg_buffers[j].info.c_struct.cmd,
3297                                     priv->msg_buffers[j].info.c_struct.
3298                                     cmd_phys);
3299         }
3300
3301         kfree(priv->msg_buffers);
3302         priv->msg_buffers = NULL;
3303
3304         return err;
3305 }
3306
3307 static int ipw2100_msg_initialize(struct ipw2100_priv *priv)
3308 {
3309         int i;
3310
3311         INIT_LIST_HEAD(&priv->msg_free_list);
3312         INIT_LIST_HEAD(&priv->msg_pend_list);
3313
3314         for (i = 0; i < IPW_COMMAND_POOL_SIZE; i++)
3315                 list_add_tail(&priv->msg_buffers[i].list, &priv->msg_free_list);
3316         SET_STAT(&priv->msg_free_stat, i);
3317
3318         return 0;
3319 }
3320
3321 static void ipw2100_msg_free(struct ipw2100_priv *priv)
3322 {
3323         int i;
3324
3325         if (!priv->msg_buffers)
3326                 return;
3327
3328         for (i = 0; i < IPW_COMMAND_POOL_SIZE; i++) {
3329                 pci_free_consistent(priv->pci_dev,
3330                                     sizeof(struct ipw2100_cmd_header),
3331                                     priv->msg_buffers[i].info.c_struct.cmd,
3332                                     priv->msg_buffers[i].info.c_struct.
3333                                     cmd_phys);
3334         }
3335
3336         kfree(priv->msg_buffers);
3337         priv->msg_buffers = NULL;
3338 }
3339
3340 static ssize_t show_pci(struct device *d, struct device_attribute *attr,
3341                         char *buf)
3342 {
3343         struct pci_dev *pci_dev = container_of(d, struct pci_dev, dev);
3344         char *out = buf;
3345         int i, j;
3346         u32 val;
3347
3348         for (i = 0; i < 16; i++) {
3349                 out += sprintf(out, "[%08X] ", i * 16);
3350                 for (j = 0; j < 16; j += 4) {
3351                         pci_read_config_dword(pci_dev, i * 16 + j, &val);
3352                         out += sprintf(out, "%08X ", val);
3353                 }
3354                 out += sprintf(out, "\n");
3355         }
3356
3357         return out - buf;
3358 }
3359
3360 static DEVICE_ATTR(pci, S_IRUGO, show_pci, NULL);
3361
3362 static ssize_t show_cfg(struct device *d, struct device_attribute *attr,
3363                         char *buf)
3364 {
3365         struct ipw2100_priv *p = d->driver_data;
3366         return sprintf(buf, "0x%08x\n", (int)p->config);
3367 }
3368
3369 static DEVICE_ATTR(cfg, S_IRUGO, show_cfg, NULL);
3370
3371 static ssize_t show_status(struct device *d, struct device_attribute *attr,
3372                            char *buf)
3373 {
3374         struct ipw2100_priv *p = d->driver_data;
3375         return sprintf(buf, "0x%08x\n", (int)p->status);
3376 }
3377
3378 static DEVICE_ATTR(status, S_IRUGO, show_status, NULL);
3379
3380 static ssize_t show_capability(struct device *d, struct device_attribute *attr,
3381                                char *buf)
3382 {
3383         struct ipw2100_priv *p = d->driver_data;
3384         return sprintf(buf, "0x%08x\n", (int)p->capability);
3385 }
3386
3387 static DEVICE_ATTR(capability, S_IRUGO, show_capability, NULL);
3388
3389 #define IPW2100_REG(x) { IPW_ ##x, #x }
3390 static const struct {
3391         u32 addr;
3392         const char *name;
3393 } hw_data[] = {
3394 IPW2100_REG(REG_GP_CNTRL),
3395             IPW2100_REG(REG_GPIO),
3396             IPW2100_REG(REG_INTA),
3397             IPW2100_REG(REG_INTA_MASK), IPW2100_REG(REG_RESET_REG),};
3398 #define IPW2100_NIC(x, s) { x, #x, s }
3399 static const struct {
3400         u32 addr;
3401         const char *name;
3402         size_t size;
3403 } nic_data[] = {
3404 IPW2100_NIC(IPW2100_CONTROL_REG, 2),
3405             IPW2100_NIC(0x210014, 1), IPW2100_NIC(0x210000, 1),};
3406 #define IPW2100_ORD(x, d) { IPW_ORD_ ##x, #x, d }
3407 static const struct {
3408         u8 index;
3409         const char *name;
3410         const char *desc;
3411 } ord_data[] = {
3412 IPW2100_ORD(STAT_TX_HOST_REQUESTS, "requested Host Tx's (MSDU)"),
3413             IPW2100_ORD(STAT_TX_HOST_COMPLETE,
3414                                 "successful Host Tx's (MSDU)"),
3415             IPW2100_ORD(STAT_TX_DIR_DATA,
3416                                 "successful Directed Tx's (MSDU)"),
3417             IPW2100_ORD(STAT_TX_DIR_DATA1,
3418                                 "successful Directed Tx's (MSDU) @ 1MB"),
3419             IPW2100_ORD(STAT_TX_DIR_DATA2,
3420                                 "successful Directed Tx's (MSDU) @ 2MB"),
3421             IPW2100_ORD(STAT_TX_DIR_DATA5_5,
3422                                 "successful Directed Tx's (MSDU) @ 5_5MB"),
3423             IPW2100_ORD(STAT_TX_DIR_DATA11,
3424                                 "successful Directed Tx's (MSDU) @ 11MB"),
3425             IPW2100_ORD(STAT_TX_NODIR_DATA1,
3426                                 "successful Non_Directed Tx's (MSDU) @ 1MB"),
3427             IPW2100_ORD(STAT_TX_NODIR_DATA2,
3428                                 "successful Non_Directed Tx's (MSDU) @ 2MB"),
3429             IPW2100_ORD(STAT_TX_NODIR_DATA5_5,
3430                                 "successful Non_Directed Tx's (MSDU) @ 5.5MB"),
3431             IPW2100_ORD(STAT_TX_NODIR_DATA11,
3432                                 "successful Non_Directed Tx's (MSDU) @ 11MB"),
3433             IPW2100_ORD(STAT_NULL_DATA, "successful NULL data Tx's"),
3434             IPW2100_ORD(STAT_TX_RTS, "successful Tx RTS"),
3435             IPW2100_ORD(STAT_TX_CTS, "successful Tx CTS"),
3436             IPW2100_ORD(STAT_TX_ACK, "successful Tx ACK"),
3437             IPW2100_ORD(STAT_TX_ASSN, "successful Association Tx's"),
3438             IPW2100_ORD(STAT_TX_ASSN_RESP,
3439                                 "successful Association response Tx's"),
3440             IPW2100_ORD(STAT_TX_REASSN,
3441                                 "successful Reassociation Tx's"),
3442             IPW2100_ORD(STAT_TX_REASSN_RESP,
3443                                 "successful Reassociation response Tx's"),
3444             IPW2100_ORD(STAT_TX_PROBE,
3445                                 "probes successfully transmitted"),
3446             IPW2100_ORD(STAT_TX_PROBE_RESP,
3447                                 "probe responses successfully transmitted"),
3448             IPW2100_ORD(STAT_TX_BEACON, "tx beacon"),
3449             IPW2100_ORD(STAT_TX_ATIM, "Tx ATIM"),
3450             IPW2100_ORD(STAT_TX_DISASSN,
3451                                 "successful Disassociation TX"),
3452             IPW2100_ORD(STAT_TX_AUTH, "successful Authentication Tx"),
3453             IPW2100_ORD(STAT_TX_DEAUTH,
3454                                 "successful Deauthentication TX"),
3455             IPW2100_ORD(STAT_TX_TOTAL_BYTES,
3456                                 "Total successful Tx data bytes"),
3457             IPW2100_ORD(STAT_TX_RETRIES, "Tx retries"),
3458             IPW2100_ORD(STAT_TX_RETRY1, "Tx retries at 1MBPS"),
3459             IPW2100_ORD(STAT_TX_RETRY2, "Tx retries at 2MBPS"),
3460             IPW2100_ORD(STAT_TX_RETRY5_5, "Tx retries at 5.5MBPS"),
3461             IPW2100_ORD(STAT_TX_RETRY11, "Tx retries at 11MBPS"),
3462             IPW2100_ORD(STAT_TX_FAILURES, "Tx Failures"),
3463             IPW2100_ORD(STAT_TX_MAX_TRIES_IN_HOP,
3464                                 "times max tries in a hop failed"),
3465             IPW2100_ORD(STAT_TX_DISASSN_FAIL,
3466                                 "times disassociation failed"),
3467             IPW2100_ORD(STAT_TX_ERR_CTS, "missed/bad CTS frames"),
3468             IPW2100_ORD(STAT_TX_ERR_ACK, "tx err due to acks"),
3469             IPW2100_ORD(STAT_RX_HOST, "packets passed to host"),
3470             IPW2100_ORD(STAT_RX_DIR_DATA, "directed packets"),
3471             IPW2100_ORD(STAT_RX_DIR_DATA1, "directed packets at 1MB"),
3472             IPW2100_ORD(STAT_RX_DIR_DATA2, "directed packets at 2MB"),
3473             IPW2100_ORD(STAT_RX_DIR_DATA5_5,
3474                                 "directed packets at 5.5MB"),
3475             IPW2100_ORD(STAT_RX_DIR_DATA11, "directed packets at 11MB"),
3476             IPW2100_ORD(STAT_RX_NODIR_DATA, "nondirected packets"),
3477             IPW2100_ORD(STAT_RX_NODIR_DATA1,
3478                                 "nondirected packets at 1MB"),
3479             IPW2100_ORD(STAT_RX_NODIR_DATA2,
3480                                 "nondirected packets at 2MB"),
3481             IPW2100_ORD(STAT_RX_NODIR_DATA5_5,
3482                                 "nondirected packets at 5.5MB"),
3483             IPW2100_ORD(STAT_RX_NODIR_DATA11,
3484                                 "nondirected packets at 11MB"),
3485             IPW2100_ORD(STAT_RX_NULL_DATA, "null data rx's"),
3486             IPW2100_ORD(STAT_RX_RTS, "Rx RTS"), IPW2100_ORD(STAT_RX_CTS,
3487                                                                     "Rx CTS"),
3488             IPW2100_ORD(STAT_RX_ACK, "Rx ACK"),
3489             IPW2100_ORD(STAT_RX_CFEND, "Rx CF End"),
3490             IPW2100_ORD(STAT_RX_CFEND_ACK, "Rx CF End + CF Ack"),
3491             IPW2100_ORD(STAT_RX_ASSN, "Association Rx's"),
3492             IPW2100_ORD(STAT_RX_ASSN_RESP, "Association response Rx's"),
3493             IPW2100_ORD(STAT_RX_REASSN, "Reassociation Rx's"),
3494             IPW2100_ORD(STAT_RX_REASSN_RESP,
3495                                 "Reassociation response Rx's"),
3496             IPW2100_ORD(STAT_RX_PROBE, "probe Rx's"),
3497             IPW2100_ORD(STAT_RX_PROBE_RESP, "probe response Rx's"),
3498             IPW2100_ORD(STAT_RX_BEACON, "Rx beacon"),
3499             IPW2100_ORD(STAT_RX_ATIM, "Rx ATIM"),
3500             IPW2100_ORD(STAT_RX_DISASSN, "disassociation Rx"),
3501             IPW2100_ORD(STAT_RX_AUTH, "authentication Rx"),
3502             IPW2100_ORD(STAT_RX_DEAUTH, "deauthentication Rx"),
3503             IPW2100_ORD(STAT_RX_TOTAL_BYTES,
3504                                 "Total rx data bytes received"),
3505             IPW2100_ORD(STAT_RX_ERR_CRC, "packets with Rx CRC error"),
3506             IPW2100_ORD(STAT_RX_ERR_CRC1, "Rx CRC errors at 1MB"),
3507             IPW2100_ORD(STAT_RX_ERR_CRC2, "Rx CRC errors at 2MB"),
3508             IPW2100_ORD(STAT_RX_ERR_CRC5_5, "Rx CRC errors at 5.5MB"),
3509             IPW2100_ORD(STAT_RX_ERR_CRC11, "Rx CRC errors at 11MB"),
3510             IPW2100_ORD(STAT_RX_DUPLICATE1,
3511                                 "duplicate rx packets at 1MB"),
3512             IPW2100_ORD(STAT_RX_DUPLICATE2,
3513                                 "duplicate rx packets at 2MB"),
3514             IPW2100_ORD(STAT_RX_DUPLICATE5_5,
3515                                 "duplicate rx packets at 5.5MB"),
3516             IPW2100_ORD(STAT_RX_DUPLICATE11,
3517                                 "duplicate rx packets at 11MB"),
3518             IPW2100_ORD(STAT_RX_DUPLICATE, "duplicate rx packets"),
3519             IPW2100_ORD(PERS_DB_LOCK, "locking fw permanent  db"),
3520             IPW2100_ORD(PERS_DB_SIZE, "size of fw permanent  db"),
3521             IPW2100_ORD(PERS_DB_ADDR, "address of fw permanent  db"),
3522             IPW2100_ORD(STAT_RX_INVALID_PROTOCOL,
3523                                 "rx frames with invalid protocol"),
3524             IPW2100_ORD(SYS_BOOT_TIME, "Boot time"),
3525             IPW2100_ORD(STAT_RX_NO_BUFFER,
3526                                 "rx frames rejected due to no buffer"),
3527             IPW2100_ORD(STAT_RX_MISSING_FRAG,
3528                                 "rx frames dropped due to missing fragment"),
3529             IPW2100_ORD(STAT_RX_ORPHAN_FRAG,
3530                                 "rx frames dropped due to non-sequential fragment"),
3531             IPW2100_ORD(STAT_RX_ORPHAN_FRAME,
3532                                 "rx frames dropped due to unmatched 1st frame"),
3533             IPW2100_ORD(STAT_RX_FRAG_AGEOUT,
3534                                 "rx frames dropped due to uncompleted frame"),
3535             IPW2100_ORD(STAT_RX_ICV_ERRORS,
3536                                 "ICV errors during decryption"),
3537             IPW2100_ORD(STAT_PSP_SUSPENSION, "times adapter suspended"),
3538             IPW2100_ORD(STAT_PSP_BCN_TIMEOUT, "beacon timeout"),
3539             IPW2100_ORD(STAT_PSP_POLL_TIMEOUT,
3540                                 "poll response timeouts"),
3541             IPW2100_ORD(STAT_PSP_NONDIR_TIMEOUT,
3542                                 "timeouts waiting for last {broad,multi}cast pkt"),
3543             IPW2100_ORD(STAT_PSP_RX_DTIMS, "PSP DTIMs received"),
3544             IPW2100_ORD(STAT_PSP_RX_TIMS, "PSP TIMs received"),
3545             IPW2100_ORD(STAT_PSP_STATION_ID, "PSP Station ID"),
3546             IPW2100_ORD(LAST_ASSN_TIME, "RTC time of last association"),
3547             IPW2100_ORD(STAT_PERCENT_MISSED_BCNS,
3548                                 "current calculation of % missed beacons"),
3549             IPW2100_ORD(STAT_PERCENT_RETRIES,
3550                                 "current calculation of % missed tx retries"),
3551             IPW2100_ORD(ASSOCIATED_AP_PTR,
3552                                 "0 if not associated, else pointer to AP table entry"),
3553             IPW2100_ORD(AVAILABLE_AP_CNT,
3554                                 "AP's decsribed in the AP table"),
3555             IPW2100_ORD(AP_LIST_PTR, "Ptr to list of available APs"),
3556             IPW2100_ORD(STAT_AP_ASSNS, "associations"),
3557             IPW2100_ORD(STAT_ASSN_FAIL, "association failures"),
3558             IPW2100_ORD(STAT_ASSN_RESP_FAIL,
3559                                 "failures due to response fail"),
3560             IPW2100_ORD(STAT_FULL_SCANS, "full scans"),
3561             IPW2100_ORD(CARD_DISABLED, "Card Disabled"),
3562             IPW2100_ORD(STAT_ROAM_INHIBIT,
3563                                 "times roaming was inhibited due to activity"),
3564             IPW2100_ORD(RSSI_AT_ASSN,
3565                                 "RSSI of associated AP at time of association"),
3566             IPW2100_ORD(STAT_ASSN_CAUSE1,
3567                                 "reassociation: no probe response or TX on hop"),
3568             IPW2100_ORD(STAT_ASSN_CAUSE2,
3569                                 "reassociation: poor tx/rx quality"),
3570             IPW2100_ORD(STAT_ASSN_CAUSE3,
3571                                 "reassociation: tx/rx quality (excessive AP load"),
3572             IPW2100_ORD(STAT_ASSN_CAUSE4,
3573                                 "reassociation: AP RSSI level"),
3574             IPW2100_ORD(STAT_ASSN_CAUSE5,
3575                                 "reassociations due to load leveling"),
3576             IPW2100_ORD(STAT_AUTH_FAIL, "times authentication failed"),
3577             IPW2100_ORD(STAT_AUTH_RESP_FAIL,
3578                                 "times authentication response failed"),
3579             IPW2100_ORD(STATION_TABLE_CNT,
3580                                 "entries in association table"),
3581             IPW2100_ORD(RSSI_AVG_CURR, "Current avg RSSI"),
3582             IPW2100_ORD(POWER_MGMT_MODE, "Power mode - 0=CAM, 1=PSP"),
3583             IPW2100_ORD(COUNTRY_CODE,
3584                                 "IEEE country code as recv'd from beacon"),
3585             IPW2100_ORD(COUNTRY_CHANNELS,
3586                                 "channels suported by country"),
3587             IPW2100_ORD(RESET_CNT, "adapter resets (warm)"),
3588             IPW2100_ORD(BEACON_INTERVAL, "Beacon interval"),
3589             IPW2100_ORD(ANTENNA_DIVERSITY,
3590                                 "TRUE if antenna diversity is disabled"),
3591             IPW2100_ORD(DTIM_PERIOD, "beacon intervals between DTIMs"),
3592             IPW2100_ORD(OUR_FREQ,
3593                                 "current radio freq lower digits - channel ID"),
3594             IPW2100_ORD(RTC_TIME, "current RTC time"),
3595             IPW2100_ORD(PORT_TYPE, "operating mode"),
3596             IPW2100_ORD(CURRENT_TX_RATE, "current tx rate"),
3597             IPW2100_ORD(SUPPORTED_RATES, "supported tx rates"),
3598             IPW2100_ORD(ATIM_WINDOW, "current ATIM Window"),
3599             IPW2100_ORD(BASIC_RATES, "basic tx rates"),
3600             IPW2100_ORD(NIC_HIGHEST_RATE, "NIC highest tx rate"),
3601             IPW2100_ORD(AP_HIGHEST_RATE, "AP highest tx rate"),
3602             IPW2100_ORD(CAPABILITIES,
3603                                 "Management frame capability field"),
3604             IPW2100_ORD(AUTH_TYPE, "Type of authentication"),
3605             IPW2100_ORD(RADIO_TYPE, "Adapter card platform type"),
3606             IPW2100_ORD(RTS_THRESHOLD,
3607                                 "Min packet length for RTS handshaking"),
3608             IPW2100_ORD(INT_MODE, "International mode"),
3609             IPW2100_ORD(FRAGMENTATION_THRESHOLD,
3610                                 "protocol frag threshold"),
3611             IPW2100_ORD(EEPROM_SRAM_DB_BLOCK_START_ADDRESS,
3612                                 "EEPROM offset in SRAM"),
3613             IPW2100_ORD(EEPROM_SRAM_DB_BLOCK_SIZE,
3614                                 "EEPROM size in SRAM"),
3615             IPW2100_ORD(EEPROM_SKU_CAPABILITY, "EEPROM SKU Capability"),
3616             IPW2100_ORD(EEPROM_IBSS_11B_CHANNELS,
3617                                 "EEPROM IBSS 11b channel set"),
3618             IPW2100_ORD(MAC_VERSION, "MAC Version"),
3619             IPW2100_ORD(MAC_REVISION, "MAC Revision"),
3620             IPW2100_ORD(RADIO_VERSION, "Radio Version"),
3621             IPW2100_ORD(NIC_MANF_DATE_TIME, "MANF Date/Time STAMP"),
3622             IPW2100_ORD(UCODE_VERSION, "Ucode Version"),};
3623
3624 static ssize_t show_registers(struct device *d, struct device_attribute *attr,
3625                               char *buf)
3626 {
3627         int i;
3628         struct ipw2100_priv *priv = dev_get_drvdata(d);
3629         struct net_device *dev = priv->net_dev;
3630         char *out = buf;
3631         u32 val = 0;
3632
3633         out += sprintf(out, "%30s [Address ] : Hex\n", "Register");
3634
3635         for (i = 0; i < (sizeof(hw_data) / sizeof(*hw_data)); i++) {
3636                 read_register(dev, hw_data[i].addr, &val);
3637                 out += sprintf(out, "%30s [%08X] : %08X\n",
3638                                hw_data[i].name, hw_data[i].addr, val);
3639         }
3640
3641         return out - buf;
3642 }
3643
3644 static DEVICE_ATTR(registers, S_IRUGO, show_registers, NULL);
3645
3646 static ssize_t show_hardware(struct device *d, struct device_attribute *attr,
3647                              char *buf)
3648 {
3649         struct ipw2100_priv *priv = dev_get_drvdata(d);
3650         struct net_device *dev = priv->net_dev;
3651         char *out = buf;
3652         int i;
3653
3654         out += sprintf(out, "%30s [Address ] : Hex\n", "NIC entry");
3655
3656         for (i = 0; i < (sizeof(nic_data) / sizeof(*nic_data)); i++) {
3657                 u8 tmp8;
3658                 u16 tmp16;
3659                 u32 tmp32;
3660
3661                 switch (nic_data[i].size) {
3662                 case 1:
3663                         read_nic_byte(dev, nic_data[i].addr, &tmp8);
3664                         out += sprintf(out, "%30s [%08X] : %02X\n",
3665                                        nic_data[i].name, nic_data[i].addr,
3666                                        tmp8);
3667                         break;
3668                 case 2:
3669                         read_nic_word(dev, nic_data[i].addr, &tmp16);
3670                         out += sprintf(out, "%30s [%08X] : %04X\n",
3671                                        nic_data[i].name, nic_data[i].addr,
3672                                        tmp16);
3673                         break;
3674                 case 4:
3675                         read_nic_dword(dev, nic_data[i].addr, &tmp32);
3676                         out += sprintf(out, "%30s [%08X] : %08X\n",
3677                                        nic_data[i].name, nic_data[i].addr,
3678                                        tmp32);
3679                         break;
3680                 }
3681         }
3682         return out - buf;
3683 }
3684
3685 static DEVICE_ATTR(hardware, S_IRUGO, show_hardware, NULL);
3686
3687 static ssize_t show_memory(struct device *d, struct device_attribute *attr,
3688                            char *buf)
3689 {
3690         struct ipw2100_priv *priv = dev_get_drvdata(d);
3691         struct net_device *dev = priv->net_dev;
3692         static unsigned long loop = 0;
3693         int len = 0;
3694         u32 buffer[4];
3695         int i;
3696         char line[81];
3697
3698         if (loop >= 0x30000)
3699                 loop = 0;
3700
3701         /* sysfs provides us PAGE_SIZE buffer */
3702         while (len < PAGE_SIZE - 128 && loop < 0x30000) {
3703
3704                 if (priv->snapshot[0])
3705                         for (i = 0; i < 4; i++)
3706                                 buffer[i] =
3707                                     *(u32 *) SNAPSHOT_ADDR(loop + i * 4);
3708                 else
3709                         for (i = 0; i < 4; i++)
3710                                 read_nic_dword(dev, loop + i * 4, &buffer[i]);
3711
3712                 if (priv->dump_raw)
3713                         len += sprintf(buf + len,
3714                                        "%c%c%c%c"
3715                                        "%c%c%c%c"
3716                                        "%c%c%c%c"
3717                                        "%c%c%c%c",
3718                                        ((u8 *) buffer)[0x0],
3719                                        ((u8 *) buffer)[0x1],
3720                                        ((u8 *) buffer)[0x2],
3721                                        ((u8 *) buffer)[0x3],
3722                                        ((u8 *) buffer)[0x4],
3723                                        ((u8 *) buffer)[0x5],
3724                                        ((u8 *) buffer)[0x6],
3725                                        ((u8 *) buffer)[0x7],
3726                                        ((u8 *) buffer)[0x8],
3727                                        ((u8 *) buffer)[0x9],
3728                                        ((u8 *) buffer)[0xa],
3729                                        ((u8 *) buffer)[0xb],
3730                                        ((u8 *) buffer)[0xc],
3731                                        ((u8 *) buffer)[0xd],
3732                                        ((u8 *) buffer)[0xe],
3733                                        ((u8 *) buffer)[0xf]);
3734                 else
3735                         len += sprintf(buf + len, "%s\n",
3736                                        snprint_line(line, sizeof(line),
3737                                                     (u8 *) buffer, 16, loop));
3738                 loop += 16;
3739         }
3740
3741         return len;
3742 }
3743
3744 static ssize_t store_memory(struct device *d, struct device_attribute *attr,
3745                             const char *buf, size_t count)
3746 {
3747         struct ipw2100_priv *priv = dev_get_drvdata(d);
3748         struct net_device *dev = priv->net_dev;
3749         const char *p = buf;
3750
3751         if (count < 1)
3752                 return count;
3753
3754         if (p[0] == '1' ||
3755             (count >= 2 && tolower(p[0]) == 'o' && tolower(p[1]) == 'n')) {
3756                 IPW_DEBUG_INFO("%s: Setting memory dump to RAW mode.\n",
3757                                dev->name);
3758                 priv->dump_raw = 1;
3759
3760         } else if (p[0] == '0' || (count >= 2 && tolower(p[0]) == 'o' &&
3761                                    tolower(p[1]) == 'f')) {
3762                 IPW_DEBUG_INFO("%s: Setting memory dump to HEX mode.\n",
3763                                dev->name);
3764                 priv->dump_raw = 0;
3765
3766         } else if (tolower(p[0]) == 'r') {
3767                 IPW_DEBUG_INFO("%s: Resetting firmware snapshot.\n", dev->name);
3768                 ipw2100_snapshot_free(priv);
3769
3770         } else
3771                 IPW_DEBUG_INFO("%s: Usage: 0|on = HEX, 1|off = RAW, "
3772                                "reset = clear memory snapshot\n", dev->name);
3773
3774         return count;
3775 }
3776
3777 static DEVICE_ATTR(memory, S_IWUSR | S_IRUGO, show_memory, store_memory);
3778
3779 static ssize_t show_ordinals(struct device *d, struct device_attribute *attr,
3780                              char *buf)
3781 {
3782         struct ipw2100_priv *priv = dev_get_drvdata(d);
3783         u32 val = 0;
3784         int len = 0;
3785         u32 val_len;
3786         static int loop = 0;
3787
3788         if (priv->status & STATUS_RF_KILL_MASK)
3789                 return 0;
3790
3791         if (loop >= sizeof(ord_data) / sizeof(*ord_data))
3792                 loop = 0;
3793
3794         /* sysfs provides us PAGE_SIZE buffer */
3795         while (len < PAGE_SIZE - 128 &&
3796                loop < (sizeof(ord_data) / sizeof(*ord_data))) {
3797
3798                 val_len = sizeof(u32);
3799
3800                 if (ipw2100_get_ordinal(priv, ord_data[loop].index, &val,
3801                                         &val_len))
3802                         len += sprintf(buf + len, "[0x%02X] = ERROR    %s\n",
3803                                        ord_data[loop].index,
3804                                        ord_data[loop].desc);
3805                 else
3806                         len += sprintf(buf + len, "[0x%02X] = 0x%08X %s\n",
3807                                        ord_data[loop].index, val,
3808                                        ord_data[loop].desc);
3809                 loop++;
3810         }
3811
3812         return len;
3813 }
3814
3815 static DEVICE_ATTR(ordinals, S_IRUGO, show_ordinals, NULL);
3816
3817 static ssize_t show_stats(struct device *d, struct device_attribute *attr,
3818                           char *buf)
3819 {
3820         struct ipw2100_priv *priv = dev_get_drvdata(d);
3821         char *out = buf;
3822
3823         out += sprintf(out, "interrupts: %d {tx: %d, rx: %d, other: %d}\n",
3824                        priv->interrupts, priv->tx_interrupts,
3825                        priv->rx_interrupts, priv->inta_other);
3826         out += sprintf(out, "firmware resets: %d\n", priv->resets);
3827         out += sprintf(out, "firmware hangs: %d\n", priv->hangs);
3828 #ifdef CONFIG_IPW_DEBUG
3829         out += sprintf(out, "packet mismatch image: %s\n",
3830                        priv->snapshot[0] ? "YES" : "NO");
3831 #endif
3832
3833         return out - buf;
3834 }
3835
3836 static DEVICE_ATTR(stats, S_IRUGO, show_stats, NULL);
3837
3838 static int ipw2100_switch_mode(struct ipw2100_priv *priv, u32 mode)
3839 {
3840         int err;
3841
3842         if (mode == priv->ieee->iw_mode)
3843                 return 0;
3844
3845         err = ipw2100_disable_adapter(priv);
3846         if (err) {
3847                 printk(KERN_ERR DRV_NAME ": %s: Could not disable adapter %d\n",
3848                        priv->net_dev->name, err);
3849                 return err;
3850         }
3851
3852         switch (mode) {
3853         case IW_MODE_INFRA:
3854                 priv->net_dev->type = ARPHRD_ETHER;
3855                 break;
3856         case IW_MODE_ADHOC:
3857                 priv->net_dev->type = ARPHRD_ETHER;
3858                 break;
3859 #ifdef CONFIG_IPW2100_MONITOR
3860         case IW_MODE_MONITOR:
3861                 priv->last_mode = priv->ieee->iw_mode;
3862                 priv->net_dev->type = ARPHRD_IEEE80211;
3863                 break;
3864 #endif                          /* CONFIG_IPW2100_MONITOR */
3865         }
3866
3867         priv->ieee->iw_mode = mode;
3868
3869 #ifdef CONFIG_PM
3870         /* Indicate ipw2100_download_firmware download firmware
3871          * from disk instead of memory. */
3872         ipw2100_firmware.version = 0;
3873 #endif
3874
3875         printk(KERN_INFO "%s: Reseting on mode change.\n", priv->net_dev->name);
3876         priv->reset_backoff = 0;
3877         schedule_reset(priv);
3878
3879         return 0;
3880 }
3881
3882 static ssize_t show_internals(struct device *d, struct device_attribute *attr,
3883                               char *buf)
3884 {
3885         struct ipw2100_priv *priv = dev_get_drvdata(d);
3886         int len = 0;
3887
3888 #define DUMP_VAR(x,y) len += sprintf(buf + len, # x ": %" y "\n", priv-> x)
3889
3890         if (priv->status & STATUS_ASSOCIATED)
3891                 len += sprintf(buf + len, "connected: %lu\n",
3892                                get_seconds() - priv->connect_start);
3893         else
3894                 len += sprintf(buf + len, "not connected\n");
3895
3896         DUMP_VAR(ieee->crypt[priv->ieee->tx_keyidx], "p");
3897         DUMP_VAR(status, "08lx");
3898         DUMP_VAR(config, "08lx");
3899         DUMP_VAR(capability, "08lx");
3900
3901         len +=
3902             sprintf(buf + len, "last_rtc: %lu\n",
3903                     (unsigned long)priv->last_rtc);
3904
3905         DUMP_VAR(fatal_error, "d");
3906         DUMP_VAR(stop_hang_check, "d");
3907         DUMP_VAR(stop_rf_kill, "d");
3908         DUMP_VAR(messages_sent, "d");
3909
3910         DUMP_VAR(tx_pend_stat.value, "d");
3911         DUMP_VAR(tx_pend_stat.hi, "d");
3912
3913         DUMP_VAR(tx_free_stat.value, "d");
3914         DUMP_VAR(tx_free_stat.lo, "d");
3915
3916         DUMP_VAR(msg_free_stat.value, "d");
3917         DUMP_VAR(msg_free_stat.lo, "d");
3918
3919         DUMP_VAR(msg_pend_stat.value, "d");
3920         DUMP_VAR(msg_pend_stat.hi, "d");
3921
3922         DUMP_VAR(fw_pend_stat.value, "d");
3923         DUMP_VAR(fw_pend_stat.hi, "d");
3924
3925         DUMP_VAR(txq_stat.value, "d");
3926         DUMP_VAR(txq_stat.lo, "d");
3927
3928         DUMP_VAR(ieee->scans, "d");
3929         DUMP_VAR(reset_backoff, "d");
3930
3931         return len;
3932 }
3933
3934 static DEVICE_ATTR(internals, S_IRUGO, show_internals, NULL);
3935
3936 static ssize_t show_bssinfo(struct device *d, struct device_attribute *attr,
3937                             char *buf)
3938 {
3939         struct ipw2100_priv *priv = dev_get_drvdata(d);
3940         char essid[IW_ESSID_MAX_SIZE + 1];
3941         u8 bssid[ETH_ALEN];
3942         u32 chan = 0;
3943         char *out = buf;
3944         int length;
3945         int ret;
3946
3947         if (priv->status & STATUS_RF_KILL_MASK)
3948                 return 0;
3949
3950         memset(essid, 0, sizeof(essid));
3951         memset(bssid, 0, sizeof(bssid));
3952
3953         length = IW_ESSID_MAX_SIZE;
3954         ret = ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_SSID, essid, &length);
3955         if (ret)
3956                 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
3957                                __LINE__);
3958
3959         length = sizeof(bssid);
3960         ret = ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_AP_BSSID,
3961                                   bssid, &length);
3962         if (ret)
3963                 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
3964                                __LINE__);
3965
3966         length = sizeof(u32);
3967         ret = ipw2100_get_ordinal(priv, IPW_ORD_OUR_FREQ, &chan, &length);
3968         if (ret)
3969                 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
3970                                __LINE__);
3971
3972         out += sprintf(out, "ESSID: %s\n", essid);
3973         out += sprintf(out, "BSSID:   %02x:%02x:%02x:%02x:%02x:%02x\n",
3974                        bssid[0], bssid[1], bssid[2],
3975                        bssid[3], bssid[4], bssid[5]);
3976         out += sprintf(out, "Channel: %d\n", chan);
3977
3978         return out - buf;
3979 }
3980
3981 static DEVICE_ATTR(bssinfo, S_IRUGO, show_bssinfo, NULL);
3982
3983 #ifdef CONFIG_IPW_DEBUG
3984 static ssize_t show_debug_level(struct device_driver *d, char *buf)
3985 {
3986         return sprintf(buf, "0x%08X\n", ipw2100_debug_level);
3987 }
3988
3989 static ssize_t store_debug_level(struct device_driver *d,
3990                                  const char *buf, size_t count)
3991 {
3992         char *p = (char *)buf;
3993         u32 val;
3994
3995         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
3996                 p++;
3997                 if (p[0] == 'x' || p[0] == 'X')
3998                         p++;
3999                 val = simple_strtoul(p, &p, 16);
4000         } else
4001                 val = simple_strtoul(p, &p, 10);
4002         if (p == buf)
4003                 IPW_DEBUG_INFO(": %s is not in hex or decimal form.\n", buf);
4004         else
4005                 ipw2100_debug_level = val;
4006
4007         return strnlen(buf, count);
4008 }
4009
4010 static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO, show_debug_level,
4011                    store_debug_level);
4012 #endif                          /* CONFIG_IPW_DEBUG */
4013
4014 static ssize_t show_fatal_error(struct device *d,
4015                                 struct device_attribute *attr, char *buf)
4016 {
4017         struct ipw2100_priv *priv = dev_get_drvdata(d);
4018         char *out = buf;
4019         int i;
4020
4021         if (priv->fatal_error)
4022                 out += sprintf(out, "0x%08X\n", priv->fatal_error);
4023         else
4024                 out += sprintf(out, "0\n");
4025
4026         for (i = 1; i <= IPW2100_ERROR_QUEUE; i++) {
4027                 if (!priv->fatal_errors[(priv->fatal_index - i) %
4028                                         IPW2100_ERROR_QUEUE])
4029                         continue;
4030
4031                 out += sprintf(out, "%d. 0x%08X\n", i,
4032                                priv->fatal_errors[(priv->fatal_index - i) %
4033                                                   IPW2100_ERROR_QUEUE]);
4034         }
4035
4036         return out - buf;
4037 }
4038
4039 static ssize_t store_fatal_error(struct device *d,
4040                                  struct device_attribute *attr, const char *buf,
4041                                  size_t count)
4042 {
4043         struct ipw2100_priv *priv = dev_get_drvdata(d);
4044         schedule_reset(priv);
4045         return count;
4046 }
4047
4048 static DEVICE_ATTR(fatal_error, S_IWUSR | S_IRUGO, show_fatal_error,
4049                    store_fatal_error);
4050
4051 static ssize_t show_scan_age(struct device *d, struct device_attribute *attr,
4052                              char *buf)
4053 {
4054         struct ipw2100_priv *priv = dev_get_drvdata(d);
4055         return sprintf(buf, "%d\n", priv->ieee->scan_age);
4056 }
4057
4058 static ssize_t store_scan_age(struct device *d, struct device_attribute *attr,
4059                               const char *buf, size_t count)
4060 {
4061         struct ipw2100_priv *priv = dev_get_drvdata(d);
4062         struct net_device *dev = priv->net_dev;
4063         char buffer[] = "00000000";
4064         unsigned long len =
4065             (sizeof(buffer) - 1) > count ? count : sizeof(buffer) - 1;
4066         unsigned long val;
4067         char *p = buffer;
4068
4069         IPW_DEBUG_INFO("enter\n");
4070
4071         strncpy(buffer, buf, len);
4072         buffer[len] = 0;
4073
4074         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
4075                 p++;
4076                 if (p[0] == 'x' || p[0] == 'X')
4077                         p++;
4078                 val = simple_strtoul(p, &p, 16);
4079         } else
4080                 val = simple_strtoul(p, &p, 10);
4081         if (p == buffer) {
4082                 IPW_DEBUG_INFO("%s: user supplied invalid value.\n", dev->name);
4083         } else {
4084                 priv->ieee->scan_age = val;
4085                 IPW_DEBUG_INFO("set scan_age = %u\n", priv->ieee->scan_age);
4086         }
4087
4088         IPW_DEBUG_INFO("exit\n");
4089         return len;
4090 }
4091
4092 static DEVICE_ATTR(scan_age, S_IWUSR | S_IRUGO, show_scan_age, store_scan_age);
4093
4094 static ssize_t show_rf_kill(struct device *d, struct device_attribute *attr,
4095                             char *buf)
4096 {
4097         /* 0 - RF kill not enabled
4098            1 - SW based RF kill active (sysfs)
4099            2 - HW based RF kill active
4100            3 - Both HW and SW baed RF kill active */
4101         struct ipw2100_priv *priv = (struct ipw2100_priv *)d->driver_data;
4102         int val = ((priv->status & STATUS_RF_KILL_SW) ? 0x1 : 0x0) |
4103             (rf_kill_active(priv) ? 0x2 : 0x0);
4104         return sprintf(buf, "%i\n", val);
4105 }
4106
4107 static int ipw_radio_kill_sw(struct ipw2100_priv *priv, int disable_radio)
4108 {
4109         if ((disable_radio ? 1 : 0) ==
4110             (priv->status & STATUS_RF_KILL_SW ? 1 : 0))
4111                 return 0;
4112
4113         IPW_DEBUG_RF_KILL("Manual SW RF Kill set to: RADIO  %s\n",
4114                           disable_radio ? "OFF" : "ON");
4115
4116         down(&priv->action_sem);
4117
4118         if (disable_radio) {
4119                 priv->status |= STATUS_RF_KILL_SW;
4120                 ipw2100_down(priv);
4121         } else {
4122                 priv->status &= ~STATUS_RF_KILL_SW;
4123                 if (rf_kill_active(priv)) {
4124                         IPW_DEBUG_RF_KILL("Can not turn radio back on - "
4125                                           "disabled by HW switch\n");
4126                         /* Make sure the RF_KILL check timer is running */
4127                         priv->stop_rf_kill = 0;
4128                         cancel_delayed_work(&priv->rf_kill);
4129                         queue_delayed_work(priv->workqueue, &priv->rf_kill, HZ);
4130                 } else
4131                         schedule_reset(priv);
4132         }
4133
4134         up(&priv->action_sem);
4135         return 1;
4136 }
4137
4138 static ssize_t store_rf_kill(struct device *d, struct device_attribute *attr,
4139                              const char *buf, size_t count)
4140 {
4141         struct ipw2100_priv *priv = dev_get_drvdata(d);
4142         ipw_radio_kill_sw(priv, buf[0] == '1');
4143         return count;
4144 }
4145
4146 static DEVICE_ATTR(rf_kill, S_IWUSR | S_IRUGO, show_rf_kill, store_rf_kill);
4147
4148 static struct attribute *ipw2100_sysfs_entries[] = {
4149         &dev_attr_hardware.attr,
4150         &dev_attr_registers.attr,
4151         &dev_attr_ordinals.attr,
4152         &dev_attr_pci.attr,
4153         &dev_attr_stats.attr,
4154         &dev_attr_internals.attr,
4155         &dev_attr_bssinfo.attr,
4156         &dev_attr_memory.attr,
4157         &dev_attr_scan_age.attr,
4158         &dev_attr_fatal_error.attr,
4159         &dev_attr_rf_kill.attr,
4160         &dev_attr_cfg.attr,
4161         &dev_attr_status.attr,
4162         &dev_attr_capability.attr,
4163         NULL,
4164 };
4165
4166 static struct attribute_group ipw2100_attribute_group = {
4167         .attrs = ipw2100_sysfs_entries,
4168 };
4169
4170 static int status_queue_allocate(struct ipw2100_priv *priv, int entries)
4171 {
4172         struct ipw2100_status_queue *q = &priv->status_queue;
4173
4174         IPW_DEBUG_INFO("enter\n");
4175
4176         q->size = entries * sizeof(struct ipw2100_status);
4177         q->drv =
4178             (struct ipw2100_status *)pci_alloc_consistent(priv->pci_dev,
4179                                                           q->size, &q->nic);
4180         if (!q->drv) {
4181                 IPW_DEBUG_WARNING("Can not allocate status queue.\n");
4182                 return -ENOMEM;
4183         }
4184
4185         memset(q->drv, 0, q->size);
4186
4187         IPW_DEBUG_INFO("exit\n");
4188
4189         return 0;
4190 }
4191
4192 static void status_queue_free(struct ipw2100_priv *priv)
4193 {
4194         IPW_DEBUG_INFO("enter\n");
4195
4196         if (priv->status_queue.drv) {
4197                 pci_free_consistent(priv->pci_dev, priv->status_queue.size,
4198                                     priv->status_queue.drv,
4199                                     priv->status_queue.nic);
4200                 priv->status_queue.drv = NULL;
4201         }
4202
4203         IPW_DEBUG_INFO("exit\n");
4204 }
4205
4206 static int bd_queue_allocate(struct ipw2100_priv *priv,
4207                              struct ipw2100_bd_queue *q, int entries)
4208 {
4209         IPW_DEBUG_INFO("enter\n");
4210
4211         memset(q, 0, sizeof(struct ipw2100_bd_queue));
4212
4213         q->entries = entries;
4214         q->size = entries * sizeof(struct ipw2100_bd);
4215         q->drv = pci_alloc_consistent(priv->pci_dev, q->size, &q->nic);
4216         if (!q->drv) {
4217                 IPW_DEBUG_INFO
4218                     ("can't allocate shared memory for buffer descriptors\n");
4219                 return -ENOMEM;
4220         }
4221         memset(q->drv, 0, q->size);
4222
4223         IPW_DEBUG_INFO("exit\n");
4224
4225         return 0;
4226 }
4227
4228 static void bd_queue_free(struct ipw2100_priv *priv, struct ipw2100_bd_queue *q)
4229 {
4230         IPW_DEBUG_INFO("enter\n");
4231
4232         if (!q)
4233                 return;
4234
4235         if (q->drv) {
4236                 pci_free_consistent(priv->pci_dev, q->size, q->drv, q->nic);
4237                 q->drv = NULL;
4238         }
4239
4240         IPW_DEBUG_INFO("exit\n");
4241 }
4242
4243 static void bd_queue_initialize(struct ipw2100_priv *priv,
4244                                 struct ipw2100_bd_queue *q, u32 base, u32 size,
4245                                 u32 r, u32 w)
4246 {
4247         IPW_DEBUG_INFO("enter\n");
4248
4249         IPW_DEBUG_INFO("initializing bd queue at virt=%p, phys=%08x\n", q->drv,
4250                        (u32) q->nic);
4251
4252         write_register(priv->net_dev, base, q->nic);
4253         write_register(priv->net_dev, size, q->entries);
4254         write_register(priv->net_dev, r, q->oldest);
4255         write_register(priv->net_dev, w, q->next);
4256
4257         IPW_DEBUG_INFO("exit\n");
4258 }
4259
4260 static void ipw2100_kill_workqueue(struct ipw2100_priv *priv)
4261 {
4262         if (priv->workqueue) {
4263                 priv->stop_rf_kill = 1;
4264                 priv->stop_hang_check = 1;
4265                 cancel_delayed_work(&priv->reset_work);
4266                 cancel_delayed_work(&priv->security_work);
4267                 cancel_delayed_work(&priv->wx_event_work);
4268                 cancel_delayed_work(&priv->hang_check);
4269                 cancel_delayed_work(&priv->rf_kill);
4270                 destroy_workqueue(priv->workqueue);
4271                 priv->workqueue = NULL;
4272         }
4273 }
4274
4275 static int ipw2100_tx_allocate(struct ipw2100_priv *priv)
4276 {
4277         int i, j, err = -EINVAL;
4278         void *v;
4279         dma_addr_t p;
4280
4281         IPW_DEBUG_INFO("enter\n");
4282
4283         err = bd_queue_allocate(priv, &priv->tx_queue, TX_QUEUE_LENGTH);
4284         if (err) {
4285                 IPW_DEBUG_ERROR("%s: failed bd_queue_allocate\n",
4286                                 priv->net_dev->name);
4287                 return err;
4288         }
4289
4290         priv->tx_buffers =
4291             (struct ipw2100_tx_packet *)kmalloc(TX_PENDED_QUEUE_LENGTH *
4292                                                 sizeof(struct
4293                                                        ipw2100_tx_packet),
4294                                                 GFP_ATOMIC);
4295         if (!priv->tx_buffers) {
4296                 printk(KERN_ERR DRV_NAME
4297                        ": %s: alloc failed form tx buffers.\n",
4298                        priv->net_dev->name);
4299                 bd_queue_free(priv, &priv->tx_queue);
4300                 return -ENOMEM;
4301         }
4302
4303         for (i = 0; i < TX_PENDED_QUEUE_LENGTH; i++) {
4304                 v = pci_alloc_consistent(priv->pci_dev,
4305                                          sizeof(struct ipw2100_data_header),
4306                                          &p);
4307                 if (!v) {
4308                         printk(KERN_ERR DRV_NAME
4309                                ": %s: PCI alloc failed for tx " "buffers.\n",
4310                                priv->net_dev->name);
4311                         err = -ENOMEM;
4312                         break;
4313                 }
4314
4315                 priv->tx_buffers[i].type = DATA;
4316                 priv->tx_buffers[i].info.d_struct.data =
4317                     (struct ipw2100_data_header *)v;
4318                 priv->tx_buffers[i].info.d_struct.data_phys = p;
4319                 priv->tx_buffers[i].info.d_struct.txb = NULL;
4320         }
4321
4322         if (i == TX_PENDED_QUEUE_LENGTH)
4323                 return 0;
4324
4325         for (j = 0; j < i; j++) {
4326                 pci_free_consistent(priv->pci_dev,
4327                                     sizeof(struct ipw2100_data_header),
4328                                     priv->tx_buffers[j].info.d_struct.data,
4329                                     priv->tx_buffers[j].info.d_struct.
4330                                     data_phys);
4331         }
4332
4333         kfree(priv->tx_buffers);
4334         priv->tx_buffers = NULL;
4335
4336         return err;
4337 }
4338
4339 static void ipw2100_tx_initialize(struct ipw2100_priv *priv)
4340 {
4341         int i;
4342
4343         IPW_DEBUG_INFO("enter\n");
4344
4345         /*
4346          * reinitialize packet info lists
4347          */
4348         INIT_LIST_HEAD(&priv->fw_pend_list);
4349         INIT_STAT(&priv->fw_pend_stat);
4350
4351         /*
4352          * reinitialize lists
4353          */
4354         INIT_LIST_HEAD(&priv->tx_pend_list);
4355         INIT_LIST_HEAD(&priv->tx_free_list);
4356         INIT_STAT(&priv->tx_pend_stat);
4357         INIT_STAT(&priv->tx_free_stat);
4358
4359         for (i = 0; i < TX_PENDED_QUEUE_LENGTH; i++) {
4360                 /* We simply drop any SKBs that have been queued for
4361                  * transmit */
4362                 if (priv->tx_buffers[i].info.d_struct.txb) {
4363                         ieee80211_txb_free(priv->tx_buffers[i].info.d_struct.
4364                                            txb);
4365                         priv->tx_buffers[i].info.d_struct.txb = NULL;
4366                 }
4367
4368                 list_add_tail(&priv->tx_buffers[i].list, &priv->tx_free_list);
4369         }
4370
4371         SET_STAT(&priv->tx_free_stat, i);
4372
4373         priv->tx_queue.oldest = 0;
4374         priv->tx_queue.available = priv->tx_queue.entries;
4375         priv->tx_queue.next = 0;
4376         INIT_STAT(&priv->txq_stat);
4377         SET_STAT(&priv->txq_stat, priv->tx_queue.available);
4378
4379         bd_queue_initialize(priv, &priv->tx_queue,
4380                             IPW_MEM_HOST_SHARED_TX_QUEUE_BD_BASE,
4381                             IPW_MEM_HOST_SHARED_TX_QUEUE_BD_SIZE,
4382                             IPW_MEM_HOST_SHARED_TX_QUEUE_READ_INDEX,
4383                             IPW_MEM_HOST_SHARED_TX_QUEUE_WRITE_INDEX);
4384
4385         IPW_DEBUG_INFO("exit\n");
4386
4387 }
4388
4389 static void ipw2100_tx_free(struct ipw2100_priv *priv)
4390 {
4391         int i;
4392
4393         IPW_DEBUG_INFO("enter\n");
4394
4395         bd_queue_free(priv, &priv->tx_queue);
4396
4397         if (!priv->tx_buffers)
4398                 return;
4399
4400         for (i = 0; i < TX_PENDED_QUEUE_LENGTH; i++) {
4401                 if (priv->tx_buffers[i].info.d_struct.txb) {
4402                         ieee80211_txb_free(priv->tx_buffers[i].info.d_struct.
4403                                            txb);
4404                         priv->tx_buffers[i].info.d_struct.txb = NULL;
4405                 }
4406                 if (priv->tx_buffers[i].info.d_struct.data)
4407                         pci_free_consistent(priv->pci_dev,
4408                                             sizeof(struct ipw2100_data_header),
4409                                             priv->tx_buffers[i].info.d_struct.
4410                                             data,
4411                                             priv->tx_buffers[i].info.d_struct.
4412                                             data_phys);
4413         }
4414
4415         kfree(priv->tx_buffers);
4416         priv->tx_buffers = NULL;
4417
4418         IPW_DEBUG_INFO("exit\n");
4419 }
4420
4421 static int ipw2100_rx_allocate(struct ipw2100_priv *priv)
4422 {
4423         int i, j, err = -EINVAL;
4424
4425         IPW_DEBUG_INFO("enter\n");
4426
4427         err = bd_queue_allocate(priv, &priv->rx_queue, RX_QUEUE_LENGTH);
4428         if (err) {
4429                 IPW_DEBUG_INFO("failed bd_queue_allocate\n");
4430                 return err;
4431         }
4432
4433         err = status_queue_allocate(priv, RX_QUEUE_LENGTH);
4434         if (err) {
4435                 IPW_DEBUG_INFO("failed status_queue_allocate\n");
4436                 bd_queue_free(priv, &priv->rx_queue);
4437                 return err;
4438         }
4439
4440         /*
4441          * allocate packets
4442          */
4443         priv->rx_buffers = (struct ipw2100_rx_packet *)
4444             kmalloc(RX_QUEUE_LENGTH * sizeof(struct ipw2100_rx_packet),
4445                     GFP_KERNEL);
4446         if (!priv->rx_buffers) {
4447                 IPW_DEBUG_INFO("can't allocate rx packet buffer table\n");
4448
4449                 bd_queue_free(priv, &priv->rx_queue);
4450
4451                 status_queue_free(priv);
4452
4453                 return -ENOMEM;
4454         }
4455
4456         for (i = 0; i < RX_QUEUE_LENGTH; i++) {
4457                 struct ipw2100_rx_packet *packet = &priv->rx_buffers[i];
4458
4459                 err = ipw2100_alloc_skb(priv, packet);
4460                 if (unlikely(err)) {
4461                         err = -ENOMEM;
4462                         break;
4463                 }
4464
4465                 /* The BD holds the cache aligned address */
4466                 priv->rx_queue.drv[i].host_addr = packet->dma_addr;
4467                 priv->rx_queue.drv[i].buf_length = IPW_RX_NIC_BUFFER_LENGTH;
4468                 priv->status_queue.drv[i].status_fields = 0;
4469         }
4470
4471         if (i == RX_QUEUE_LENGTH)
4472                 return 0;
4473
4474         for (j = 0; j < i; j++) {
4475                 pci_unmap_single(priv->pci_dev, priv->rx_buffers[j].dma_addr,
4476                                  sizeof(struct ipw2100_rx_packet),
4477                                  PCI_DMA_FROMDEVICE);
4478                 dev_kfree_skb(priv->rx_buffers[j].skb);
4479         }
4480
4481         kfree(priv->rx_buffers);
4482         priv->rx_buffers = NULL;
4483
4484         bd_queue_free(priv, &priv->rx_queue);
4485
4486         status_queue_free(priv);
4487
4488         return err;
4489 }
4490
4491 static void ipw2100_rx_initialize(struct ipw2100_priv *priv)
4492 {
4493         IPW_DEBUG_INFO("enter\n");
4494
4495         priv->rx_queue.oldest = 0;
4496         priv->rx_queue.available = priv->rx_queue.entries - 1;
4497         priv->rx_queue.next = priv->rx_queue.entries - 1;
4498
4499         INIT_STAT(&priv->rxq_stat);
4500         SET_STAT(&priv->rxq_stat, priv->rx_queue.available);
4501
4502         bd_queue_initialize(priv, &priv->rx_queue,
4503                             IPW_MEM_HOST_SHARED_RX_BD_BASE,
4504                             IPW_MEM_HOST_SHARED_RX_BD_SIZE,
4505                             IPW_MEM_HOST_SHARED_RX_READ_INDEX,
4506                             IPW_MEM_HOST_SHARED_RX_WRITE_INDEX);
4507
4508         /* set up the status queue */
4509         write_register(priv->net_dev, IPW_MEM_HOST_SHARED_RX_STATUS_BASE,
4510                        priv->status_queue.nic);
4511
4512         IPW_DEBUG_INFO("exit\n");
4513 }
4514
4515 static void ipw2100_rx_free(struct ipw2100_priv *priv)
4516 {
4517         int i;
4518
4519         IPW_DEBUG_INFO("enter\n");
4520
4521         bd_queue_free(priv, &priv->rx_queue);
4522         status_queue_free(priv);
4523
4524         if (!priv->rx_buffers)
4525                 return;
4526
4527         for (i = 0; i < RX_QUEUE_LENGTH; i++) {
4528                 if (priv->rx_buffers[i].rxp) {
4529                         pci_unmap_single(priv->pci_dev,
4530                                          priv->rx_buffers[i].dma_addr,
4531                                          sizeof(struct ipw2100_rx),
4532                                          PCI_DMA_FROMDEVICE);
4533                         dev_kfree_skb(priv->rx_buffers[i].skb);
4534                 }
4535         }
4536
4537         kfree(priv->rx_buffers);
4538         priv->rx_buffers = NULL;
4539
4540         IPW_DEBUG_INFO("exit\n");
4541 }
4542
4543 static int ipw2100_read_mac_address(struct ipw2100_priv *priv)
4544 {
4545         u32 length = ETH_ALEN;
4546         u8 mac[ETH_ALEN];
4547
4548         int err;
4549
4550         err = ipw2100_get_ordinal(priv, IPW_ORD_STAT_ADAPTER_MAC, mac, &length);
4551         if (err) {
4552                 IPW_DEBUG_INFO("MAC address read failed\n");
4553                 return -EIO;
4554         }
4555         IPW_DEBUG_INFO("card MAC is %02X:%02X:%02X:%02X:%02X:%02X\n",
4556                        mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
4557
4558         memcpy(priv->net_dev->dev_addr, mac, ETH_ALEN);
4559
4560         return 0;
4561 }
4562
4563 /********************************************************************
4564  *
4565  * Firmware Commands
4566  *
4567  ********************************************************************/
4568
4569 static int ipw2100_set_mac_address(struct ipw2100_priv *priv, int batch_mode)
4570 {
4571         struct host_command cmd = {
4572                 .host_command = ADAPTER_ADDRESS,
4573                 .host_command_sequence = 0,
4574                 .host_command_length = ETH_ALEN
4575         };
4576         int err;
4577
4578         IPW_DEBUG_HC("SET_MAC_ADDRESS\n");
4579
4580         IPW_DEBUG_INFO("enter\n");
4581
4582         if (priv->config & CFG_CUSTOM_MAC) {
4583                 memcpy(cmd.host_command_parameters, priv->mac_addr, ETH_ALEN);
4584                 memcpy(priv->net_dev->dev_addr, priv->mac_addr, ETH_ALEN);
4585         } else
4586                 memcpy(cmd.host_command_parameters, priv->net_dev->dev_addr,
4587                        ETH_ALEN);
4588
4589         err = ipw2100_hw_send_command(priv, &cmd);
4590
4591         IPW_DEBUG_INFO("exit\n");
4592         return err;
4593 }
4594
4595 static int ipw2100_set_port_type(struct ipw2100_priv *priv, u32 port_type,
4596                                  int batch_mode)
4597 {
4598         struct host_command cmd = {
4599                 .host_command = PORT_TYPE,
4600                 .host_command_sequence = 0,
4601                 .host_command_length = sizeof(u32)
4602         };
4603         int err;
4604
4605         switch (port_type) {
4606         case IW_MODE_INFRA:
4607                 cmd.host_command_parameters[0] = IPW_BSS;
4608                 break;
4609         case IW_MODE_ADHOC:
4610                 cmd.host_command_parameters[0] = IPW_IBSS;
4611                 break;
4612         }
4613
4614         IPW_DEBUG_HC("PORT_TYPE: %s\n",
4615                      port_type == IPW_IBSS ? "Ad-Hoc" : "Managed");
4616
4617         if (!batch_mode) {
4618                 err = ipw2100_disable_adapter(priv);
4619                 if (err) {
4620                         printk(KERN_ERR DRV_NAME
4621                                ": %s: Could not disable adapter %d\n",
4622                                priv->net_dev->name, err);
4623                         return err;
4624                 }
4625         }
4626
4627         /* send cmd to firmware */
4628         err = ipw2100_hw_send_command(priv, &cmd);
4629
4630         if (!batch_mode)
4631                 ipw2100_enable_adapter(priv);
4632
4633         return err;
4634 }
4635
4636 static int ipw2100_set_channel(struct ipw2100_priv *priv, u32 channel,
4637                                int batch_mode)
4638 {
4639         struct host_command cmd = {
4640                 .host_command = CHANNEL,
4641                 .host_command_sequence = 0,
4642                 .host_command_length = sizeof(u32)
4643         };
4644         int err;
4645
4646         cmd.host_command_parameters[0] = channel;
4647
4648         IPW_DEBUG_HC("CHANNEL: %d\n", channel);
4649
4650         /* If BSS then we don't support channel selection */
4651         if (priv->ieee->iw_mode == IW_MODE_INFRA)
4652                 return 0;
4653
4654         if ((channel != 0) &&
4655             ((channel < REG_MIN_CHANNEL) || (channel > REG_MAX_CHANNEL)))
4656                 return -EINVAL;
4657
4658         if (!batch_mode) {
4659                 err = ipw2100_disable_adapter(priv);
4660                 if (err)
4661                         return err;
4662         }
4663
4664         err = ipw2100_hw_send_command(priv, &cmd);
4665         if (err) {
4666                 IPW_DEBUG_INFO("Failed to set channel to %d", channel);
4667                 return err;
4668         }
4669
4670         if (channel)
4671                 priv->config |= CFG_STATIC_CHANNEL;
4672         else
4673                 priv->config &= ~CFG_STATIC_CHANNEL;
4674
4675         priv->channel = channel;
4676
4677         if (!batch_mode) {
4678                 err = ipw2100_enable_adapter(priv);
4679                 if (err)
4680                         return err;
4681         }
4682
4683         return 0;
4684 }
4685
4686 static int ipw2100_system_config(struct ipw2100_priv *priv, int batch_mode)
4687 {
4688         struct host_command cmd = {
4689                 .host_command = SYSTEM_CONFIG,
4690                 .host_command_sequence = 0,
4691                 .host_command_length = 12,
4692         };
4693         u32 ibss_mask, len = sizeof(u32);
4694         int err;
4695
4696         /* Set system configuration */
4697
4698         if (!batch_mode) {
4699                 err = ipw2100_disable_adapter(priv);
4700                 if (err)
4701                         return err;
4702         }
4703
4704         if (priv->ieee->iw_mode == IW_MODE_ADHOC)
4705                 cmd.host_command_parameters[0] |= IPW_CFG_IBSS_AUTO_START;
4706
4707         cmd.host_command_parameters[0] |= IPW_CFG_IBSS_MASK |
4708             IPW_CFG_BSS_MASK | IPW_CFG_802_1x_ENABLE;
4709
4710         if (!(priv->config & CFG_LONG_PREAMBLE))
4711                 cmd.host_command_parameters[0] |= IPW_CFG_PREAMBLE_AUTO;
4712
4713         err = ipw2100_get_ordinal(priv,
4714                                   IPW_ORD_EEPROM_IBSS_11B_CHANNELS,
4715                                   &ibss_mask, &len);
4716         if (err)
4717                 ibss_mask = IPW_IBSS_11B_DEFAULT_MASK;
4718
4719         cmd.host_command_parameters[1] = REG_CHANNEL_MASK;
4720         cmd.host_command_parameters[2] = REG_CHANNEL_MASK & ibss_mask;
4721
4722         /* 11b only */
4723         /*cmd.host_command_parameters[0] |= DIVERSITY_ANTENNA_A; */
4724
4725         err = ipw2100_hw_send_command(priv, &cmd);
4726         if (err)
4727                 return err;
4728
4729 /* If IPv6 is configured in the kernel then we don't want to filter out all
4730  * of the multicast packets as IPv6 needs some. */
4731 #if !defined(CONFIG_IPV6) && !defined(CONFIG_IPV6_MODULE)
4732         cmd.host_command = ADD_MULTICAST;
4733         cmd.host_command_sequence = 0;
4734         cmd.host_command_length = 0;
4735
4736         ipw2100_hw_send_command(priv, &cmd);
4737 #endif
4738         if (!batch_mode) {
4739                 err = ipw2100_enable_adapter(priv);
4740                 if (err)
4741                         return err;
4742         }
4743
4744         return 0;
4745 }
4746
4747 static int ipw2100_set_tx_rates(struct ipw2100_priv *priv, u32 rate,
4748                                 int batch_mode)
4749 {
4750         struct host_command cmd = {
4751                 .host_command = BASIC_TX_RATES,
4752                 .host_command_sequence = 0,
4753                 .host_command_length = 4
4754         };
4755         int err;
4756
4757         cmd.host_command_parameters[0] = rate & TX_RATE_MASK;
4758
4759         if (!batch_mode) {
4760                 err = ipw2100_disable_adapter(priv);
4761                 if (err)
4762                         return err;
4763         }
4764
4765         /* Set BASIC TX Rate first */
4766         ipw2100_hw_send_command(priv, &cmd);
4767
4768         /* Set TX Rate */
4769         cmd.host_command = TX_RATES;
4770         ipw2100_hw_send_command(priv, &cmd);
4771
4772         /* Set MSDU TX Rate */
4773         cmd.host_command = MSDU_TX_RATES;
4774         ipw2100_hw_send_command(priv, &cmd);
4775
4776         if (!batch_mode) {
4777                 err = ipw2100_enable_adapter(priv);
4778                 if (err)
4779                         return err;
4780         }
4781
4782         priv->tx_rates = rate;
4783
4784         return 0;
4785 }
4786
4787 static int ipw2100_set_power_mode(struct ipw2100_priv *priv, int power_level)
4788 {
4789         struct host_command cmd = {
4790                 .host_command = POWER_MODE,
4791                 .host_command_sequence = 0,
4792                 .host_command_length = 4
4793         };
4794         int err;
4795
4796         cmd.host_command_parameters[0] = power_level;
4797
4798         err = ipw2100_hw_send_command(priv, &cmd);
4799         if (err)
4800                 return err;
4801
4802         if (power_level == IPW_POWER_MODE_CAM)
4803                 priv->power_mode = IPW_POWER_LEVEL(priv->power_mode);
4804         else
4805                 priv->power_mode = IPW_POWER_ENABLED | power_level;
4806
4807 #ifdef CONFIG_IPW2100_TX_POWER
4808         if (priv->port_type == IBSS && priv->adhoc_power != DFTL_IBSS_TX_POWER) {
4809                 /* Set beacon interval */
4810                 cmd.host_command = TX_POWER_INDEX;
4811                 cmd.host_command_parameters[0] = (u32) priv->adhoc_power;
4812
4813                 err = ipw2100_hw_send_command(priv, &cmd);
4814                 if (err)
4815                         return err;
4816         }
4817 #endif
4818
4819         return 0;
4820 }
4821
4822 static int ipw2100_set_rts_threshold(struct ipw2100_priv *priv, u32 threshold)
4823 {
4824         struct host_command cmd = {
4825                 .host_command = RTS_THRESHOLD,
4826                 .host_command_sequence = 0,
4827                 .host_command_length = 4
4828         };
4829         int err;
4830
4831         if (threshold & RTS_DISABLED)
4832                 cmd.host_command_parameters[0] = MAX_RTS_THRESHOLD;
4833         else
4834                 cmd.host_command_parameters[0] = threshold & ~RTS_DISABLED;
4835
4836         err = ipw2100_hw_send_command(priv, &cmd);
4837         if (err)
4838                 return err;
4839
4840         priv->rts_threshold = threshold;
4841
4842         return 0;
4843 }
4844
4845 #if 0
4846 int ipw2100_set_fragmentation_threshold(struct ipw2100_priv *priv,
4847                                         u32 threshold, int batch_mode)
4848 {
4849         struct host_command cmd = {
4850                 .host_command = FRAG_THRESHOLD,
4851                 .host_command_sequence = 0,
4852                 .host_command_length = 4,
4853                 .host_command_parameters[0] = 0,
4854         };
4855         int err;
4856
4857         if (!batch_mode) {
4858                 err = ipw2100_disable_adapter(priv);
4859                 if (err)
4860                         return err;
4861         }
4862
4863         if (threshold == 0)
4864                 threshold = DEFAULT_FRAG_THRESHOLD;
4865         else {
4866                 threshold = max(threshold, MIN_FRAG_THRESHOLD);
4867                 threshold = min(threshold, MAX_FRAG_THRESHOLD);
4868         }
4869
4870         cmd.host_command_parameters[0] = threshold;
4871
4872         IPW_DEBUG_HC("FRAG_THRESHOLD: %u\n", threshold);
4873
4874         err = ipw2100_hw_send_command(priv, &cmd);
4875
4876         if (!batch_mode)
4877                 ipw2100_enable_adapter(priv);
4878
4879         if (!err)
4880                 priv->frag_threshold = threshold;
4881
4882         return err;
4883 }
4884 #endif
4885
4886 static int ipw2100_set_short_retry(struct ipw2100_priv *priv, u32 retry)
4887 {
4888         struct host_command cmd = {
4889                 .host_command = SHORT_RETRY_LIMIT,
4890                 .host_command_sequence = 0,
4891                 .host_command_length = 4
4892         };
4893         int err;
4894
4895         cmd.host_command_parameters[0] = retry;
4896
4897         err = ipw2100_hw_send_command(priv, &cmd);
4898         if (err)
4899                 return err;
4900
4901         priv->short_retry_limit = retry;
4902
4903         return 0;
4904 }
4905
4906 static int ipw2100_set_long_retry(struct ipw2100_priv *priv, u32 retry)
4907 {
4908         struct host_command cmd = {
4909                 .host_command = LONG_RETRY_LIMIT,
4910                 .host_command_sequence = 0,
4911                 .host_command_length = 4
4912         };
4913         int err;
4914
4915         cmd.host_command_parameters[0] = retry;
4916
4917         err = ipw2100_hw_send_command(priv, &cmd);
4918         if (err)
4919                 return err;
4920
4921         priv->long_retry_limit = retry;
4922
4923         return 0;
4924 }
4925
4926 static int ipw2100_set_mandatory_bssid(struct ipw2100_priv *priv, u8 * bssid,
4927                                        int batch_mode)
4928 {
4929         struct host_command cmd = {
4930                 .host_command = MANDATORY_BSSID,
4931                 .host_command_sequence = 0,
4932                 .host_command_length = (bssid == NULL) ? 0 : ETH_ALEN
4933         };
4934         int err;
4935
4936 #ifdef CONFIG_IPW_DEBUG
4937         if (bssid != NULL)
4938                 IPW_DEBUG_HC("MANDATORY_BSSID: %02X:%02X:%02X:%02X:%02X:%02X\n",
4939                              bssid[0], bssid[1], bssid[2], bssid[3], bssid[4],
4940                              bssid[5]);
4941         else
4942                 IPW_DEBUG_HC("MANDATORY_BSSID: <clear>\n");
4943 #endif
4944         /* if BSSID is empty then we disable mandatory bssid mode */
4945         if (bssid != NULL)
4946                 memcpy(cmd.host_command_parameters, bssid, ETH_ALEN);
4947
4948         if (!batch_mode) {
4949                 err = ipw2100_disable_adapter(priv);
4950                 if (err)
4951                         return err;
4952         }
4953
4954         err = ipw2100_hw_send_command(priv, &cmd);
4955
4956         if (!batch_mode)
4957                 ipw2100_enable_adapter(priv);
4958
4959         return err;
4960 }
4961
4962 static int ipw2100_disassociate_bssid(struct ipw2100_priv *priv)
4963 {
4964         struct host_command cmd = {
4965                 .host_command = DISASSOCIATION_BSSID,
4966                 .host_command_sequence = 0,
4967                 .host_command_length = ETH_ALEN
4968         };
4969         int err;
4970         int len;
4971
4972         IPW_DEBUG_HC("DISASSOCIATION_BSSID\n");
4973
4974         len = ETH_ALEN;
4975         /* The Firmware currently ignores the BSSID and just disassociates from
4976          * the currently associated AP -- but in the off chance that a future
4977          * firmware does use the BSSID provided here, we go ahead and try and
4978          * set it to the currently associated AP's BSSID */
4979         memcpy(cmd.host_command_parameters, priv->bssid, ETH_ALEN);
4980
4981         err = ipw2100_hw_send_command(priv, &cmd);
4982
4983         return err;
4984 }
4985
4986 static int ipw2100_set_wpa_ie(struct ipw2100_priv *,
4987                               struct ipw2100_wpa_assoc_frame *, int)
4988     __attribute__ ((unused));
4989
4990 static int ipw2100_set_wpa_ie(struct ipw2100_priv *priv,
4991                               struct ipw2100_wpa_assoc_frame *wpa_frame,
4992                               int batch_mode)
4993 {
4994         struct host_command cmd = {
4995                 .host_command = SET_WPA_IE,
4996                 .host_command_sequence = 0,
4997                 .host_command_length = sizeof(struct ipw2100_wpa_assoc_frame),
4998         };
4999         int err;
5000
5001         IPW_DEBUG_HC("SET_WPA_IE\n");
5002
5003         if (!batch_mode) {
5004                 err = ipw2100_disable_adapter(priv);
5005                 if (err)
5006                         return err;
5007         }
5008
5009         memcpy(cmd.host_command_parameters, wpa_frame,
5010                sizeof(struct ipw2100_wpa_assoc_frame));
5011
5012         err = ipw2100_hw_send_command(priv, &cmd);
5013
5014         if (!batch_mode) {
5015                 if (ipw2100_enable_adapter(priv))
5016                         err = -EIO;
5017         }
5018
5019         return err;
5020 }
5021
5022 struct security_info_params {
5023         u32 allowed_ciphers;
5024         u16 version;
5025         u8 auth_mode;
5026         u8 replay_counters_number;
5027         u8 unicast_using_group;
5028 } __attribute__ ((packed));
5029
5030 static int ipw2100_set_security_information(struct ipw2100_priv *priv,
5031                                             int auth_mode,
5032                                             int security_level,
5033                                             int unicast_using_group,
5034                                             int batch_mode)
5035 {
5036         struct host_command cmd = {
5037                 .host_command = SET_SECURITY_INFORMATION,
5038                 .host_command_sequence = 0,
5039                 .host_command_length = sizeof(struct security_info_params)
5040         };
5041         struct security_info_params *security =
5042             (struct security_info_params *)&cmd.host_command_parameters;
5043         int err;
5044         memset(security, 0, sizeof(*security));
5045
5046         /* If shared key AP authentication is turned on, then we need to
5047          * configure the firmware to try and use it.
5048          *
5049          * Actual data encryption/decryption is handled by the host. */
5050         security->auth_mode = auth_mode;
5051         security->unicast_using_group = unicast_using_group;
5052
5053         switch (security_level) {
5054         default:
5055         case SEC_LEVEL_0:
5056                 security->allowed_ciphers = IPW_NONE_CIPHER;
5057                 break;
5058         case SEC_LEVEL_1:
5059                 security->allowed_ciphers = IPW_WEP40_CIPHER |
5060                     IPW_WEP104_CIPHER;
5061                 break;
5062         case SEC_LEVEL_2:
5063                 security->allowed_ciphers = IPW_WEP40_CIPHER |
5064                     IPW_WEP104_CIPHER | IPW_TKIP_CIPHER;
5065                 break;
5066         case SEC_LEVEL_2_CKIP:
5067                 security->allowed_ciphers = IPW_WEP40_CIPHER |
5068                     IPW_WEP104_CIPHER | IPW_CKIP_CIPHER;
5069                 break;
5070         case SEC_LEVEL_3:
5071                 security->allowed_ciphers = IPW_WEP40_CIPHER |
5072                     IPW_WEP104_CIPHER | IPW_TKIP_CIPHER | IPW_CCMP_CIPHER;
5073                 break;
5074         }
5075
5076         IPW_DEBUG_HC
5077             ("SET_SECURITY_INFORMATION: auth:%d cipher:0x%02X (level %d)\n",
5078              security->auth_mode, security->allowed_ciphers, security_level);
5079
5080         security->replay_counters_number = 0;
5081
5082         if (!batch_mode) {
5083                 err = ipw2100_disable_adapter(priv);
5084                 if (err)
5085                         return err;
5086         }
5087
5088         err = ipw2100_hw_send_command(priv, &cmd);
5089
5090         if (!batch_mode)
5091                 ipw2100_enable_adapter(priv);
5092
5093         return err;
5094 }
5095
5096 static int ipw2100_set_tx_power(struct ipw2100_priv *priv, u32 tx_power)
5097 {
5098         struct host_command cmd = {
5099                 .host_command = TX_POWER_INDEX,
5100                 .host_command_sequence = 0,
5101                 .host_command_length = 4
5102         };
5103         int err = 0;
5104
5105         cmd.host_command_parameters[0] = tx_power;
5106
5107         if (priv->ieee->iw_mode == IW_MODE_ADHOC)
5108                 err = ipw2100_hw_send_command(priv, &cmd);
5109         if (!err)
5110                 priv->tx_power = tx_power;
5111
5112         return 0;
5113 }
5114
5115 static int ipw2100_set_ibss_beacon_interval(struct ipw2100_priv *priv,
5116                                             u32 interval, int batch_mode)
5117 {
5118         struct host_command cmd = {
5119                 .host_command = BEACON_INTERVAL,
5120                 .host_command_sequence = 0,
5121                 .host_command_length = 4
5122         };
5123         int err;
5124
5125         cmd.host_command_parameters[0] = interval;
5126
5127         IPW_DEBUG_INFO("enter\n");
5128
5129         if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
5130                 if (!batch_mode) {
5131                         err = ipw2100_disable_adapter(priv);
5132                         if (err)
5133                                 return err;
5134                 }
5135
5136                 ipw2100_hw_send_command(priv, &cmd);
5137
5138                 if (!batch_mode) {
5139                         err = ipw2100_enable_adapter(priv);
5140                         if (err)
5141                                 return err;
5142                 }
5143         }
5144
5145         IPW_DEBUG_INFO("exit\n");
5146
5147         return 0;
5148 }
5149
5150 void ipw2100_queues_initialize(struct ipw2100_priv *priv)
5151 {
5152         ipw2100_tx_initialize(priv);
5153         ipw2100_rx_initialize(priv);
5154         ipw2100_msg_initialize(priv);
5155 }
5156
5157 void ipw2100_queues_free(struct ipw2100_priv *priv)
5158 {
5159         ipw2100_tx_free(priv);
5160         ipw2100_rx_free(priv);
5161         ipw2100_msg_free(priv);
5162 }
5163
5164 int ipw2100_queues_allocate(struct ipw2100_priv *priv)
5165 {
5166         if (ipw2100_tx_allocate(priv) ||
5167             ipw2100_rx_allocate(priv) || ipw2100_msg_allocate(priv))
5168                 goto fail;
5169
5170         return 0;
5171
5172       fail:
5173         ipw2100_tx_free(priv);
5174         ipw2100_rx_free(priv);
5175         ipw2100_msg_free(priv);
5176         return -ENOMEM;
5177 }
5178
5179 #define IPW_PRIVACY_CAPABLE 0x0008
5180
5181 static int ipw2100_set_wep_flags(struct ipw2100_priv *priv, u32 flags,
5182                                  int batch_mode)
5183 {
5184         struct host_command cmd = {
5185                 .host_command = WEP_FLAGS,
5186                 .host_command_sequence = 0,
5187                 .host_command_length = 4
5188         };
5189         int err;
5190
5191         cmd.host_command_parameters[0] = flags;
5192
5193         IPW_DEBUG_HC("WEP_FLAGS: flags = 0x%08X\n", flags);
5194
5195         if (!batch_mode) {
5196                 err = ipw2100_disable_adapter(priv);
5197                 if (err) {
5198                         printk(KERN_ERR DRV_NAME
5199                                ": %s: Could not disable adapter %d\n",
5200                                priv->net_dev->name, err);
5201                         return err;
5202                 }
5203         }
5204
5205         /* send cmd to firmware */
5206         err = ipw2100_hw_send_command(priv, &cmd);
5207
5208         if (!batch_mode)
5209                 ipw2100_enable_adapter(priv);
5210
5211         return err;
5212 }
5213
5214 struct ipw2100_wep_key {
5215         u8 idx;
5216         u8 len;
5217         u8 key[13];
5218 };
5219
5220 /* Macros to ease up priting WEP keys */
5221 #define WEP_FMT_64  "%02X%02X%02X%02X-%02X"
5222 #define WEP_FMT_128 "%02X%02X%02X%02X-%02X%02X%02X%02X-%02X%02X%02X"
5223 #define WEP_STR_64(x) x[0],x[1],x[2],x[3],x[4]
5224 #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]
5225
5226 /**
5227  * Set a the wep key
5228  *
5229  * @priv: struct to work on
5230  * @idx: index of the key we want to set
5231  * @key: ptr to the key data to set
5232  * @len: length of the buffer at @key
5233  * @batch_mode: FIXME perform the operation in batch mode, not
5234  *              disabling the device.
5235  *
5236  * @returns 0 if OK, < 0 errno code on error.
5237  *
5238  * Fill out a command structure with the new wep key, length an
5239  * index and send it down the wire.
5240  */
5241 static int ipw2100_set_key(struct ipw2100_priv *priv,
5242                            int idx, char *key, int len, int batch_mode)
5243 {
5244         int keylen = len ? (len <= 5 ? 5 : 13) : 0;
5245         struct host_command cmd = {
5246                 .host_command = WEP_KEY_INFO,
5247                 .host_command_sequence = 0,
5248                 .host_command_length = sizeof(struct ipw2100_wep_key),
5249         };
5250         struct ipw2100_wep_key *wep_key = (void *)cmd.host_command_parameters;
5251         int err;
5252
5253         IPW_DEBUG_HC("WEP_KEY_INFO: index = %d, len = %d/%d\n",
5254                      idx, keylen, len);
5255
5256         /* NOTE: We don't check cached values in case the firmware was reset
5257          * or some other problem is occuring.  If the user is setting the key,
5258          * then we push the change */
5259
5260         wep_key->idx = idx;
5261         wep_key->len = keylen;
5262
5263         if (keylen) {
5264                 memcpy(wep_key->key, key, len);
5265                 memset(wep_key->key + len, 0, keylen - len);
5266         }
5267
5268         /* Will be optimized out on debug not being configured in */
5269         if (keylen == 0)
5270                 IPW_DEBUG_WEP("%s: Clearing key %d\n",
5271                               priv->net_dev->name, wep_key->idx);
5272         else if (keylen == 5)
5273                 IPW_DEBUG_WEP("%s: idx: %d, len: %d key: " WEP_FMT_64 "\n",
5274                               priv->net_dev->name, wep_key->idx, wep_key->len,
5275                               WEP_STR_64(wep_key->key));
5276         else
5277                 IPW_DEBUG_WEP("%s: idx: %d, len: %d key: " WEP_FMT_128
5278                               "\n",
5279                               priv->net_dev->name, wep_key->idx, wep_key->len,
5280                               WEP_STR_128(wep_key->key));
5281
5282         if (!batch_mode) {
5283                 err = ipw2100_disable_adapter(priv);
5284                 /* FIXME: IPG: shouldn't this prink be in _disable_adapter()? */
5285                 if (err) {
5286                         printk(KERN_ERR DRV_NAME
5287                                ": %s: Could not disable adapter %d\n",
5288                                priv->net_dev->name, err);
5289                         return err;
5290                 }
5291         }
5292
5293         /* send cmd to firmware */
5294         err = ipw2100_hw_send_command(priv, &cmd);
5295
5296         if (!batch_mode) {
5297                 int err2 = ipw2100_enable_adapter(priv);
5298                 if (err == 0)
5299                         err = err2;
5300         }
5301         return err;
5302 }
5303
5304 static int ipw2100_set_key_index(struct ipw2100_priv *priv,
5305                                  int idx, int batch_mode)
5306 {
5307         struct host_command cmd = {
5308                 .host_command = WEP_KEY_INDEX,
5309                 .host_command_sequence = 0,
5310                 .host_command_length = 4,
5311                 .host_command_parameters = {idx},
5312         };
5313         int err;
5314
5315         IPW_DEBUG_HC("WEP_KEY_INDEX: index = %d\n", idx);
5316
5317         if (idx < 0 || idx > 3)
5318                 return -EINVAL;
5319
5320         if (!batch_mode) {
5321                 err = ipw2100_disable_adapter(priv);
5322                 if (err) {
5323                         printk(KERN_ERR DRV_NAME
5324                                ": %s: Could not disable adapter %d\n",
5325                                priv->net_dev->name, err);
5326                         return err;
5327                 }
5328         }
5329
5330         /* send cmd to firmware */
5331         err = ipw2100_hw_send_command(priv, &cmd);
5332
5333         if (!batch_mode)
5334                 ipw2100_enable_adapter(priv);
5335
5336         return err;
5337 }
5338
5339 static int ipw2100_configure_security(struct ipw2100_priv *priv, int batch_mode)
5340 {
5341         int i, err, auth_mode, sec_level, use_group;
5342
5343         if (!(priv->status & STATUS_RUNNING))
5344                 return 0;
5345
5346         if (!batch_mode) {
5347                 err = ipw2100_disable_adapter(priv);
5348                 if (err)
5349                         return err;
5350         }
5351
5352         if (!priv->ieee->sec.enabled) {
5353                 err =
5354                     ipw2100_set_security_information(priv, IPW_AUTH_OPEN,
5355                                                      SEC_LEVEL_0, 0, 1);
5356         } else {
5357                 auth_mode = IPW_AUTH_OPEN;
5358                 if ((priv->ieee->sec.flags & SEC_AUTH_MODE) &&
5359                     (priv->ieee->sec.auth_mode == WLAN_AUTH_SHARED_KEY))
5360                         auth_mode = IPW_AUTH_SHARED;
5361
5362                 sec_level = SEC_LEVEL_0;
5363                 if (priv->ieee->sec.flags & SEC_LEVEL)
5364                         sec_level = priv->ieee->sec.level;
5365
5366                 use_group = 0;
5367                 if (priv->ieee->sec.flags & SEC_UNICAST_GROUP)
5368                         use_group = priv->ieee->sec.unicast_uses_group;
5369
5370                 err =
5371                     ipw2100_set_security_information(priv, auth_mode, sec_level,
5372                                                      use_group, 1);
5373         }
5374
5375         if (err)
5376                 goto exit;
5377
5378         if (priv->ieee->sec.enabled) {
5379                 for (i = 0; i < 4; i++) {
5380                         if (!(priv->ieee->sec.flags & (1 << i))) {
5381                                 memset(priv->ieee->sec.keys[i], 0, WEP_KEY_LEN);
5382                                 priv->ieee->sec.key_sizes[i] = 0;
5383                         } else {
5384                                 err = ipw2100_set_key(priv, i,
5385                                                       priv->ieee->sec.keys[i],
5386                                                       priv->ieee->sec.
5387                                                       key_sizes[i], 1);
5388                                 if (err)
5389                                         goto exit;
5390                         }
5391                 }
5392
5393                 ipw2100_set_key_index(priv, priv->ieee->tx_keyidx, 1);
5394         }
5395
5396         /* Always enable privacy so the Host can filter WEP packets if
5397          * encrypted data is sent up */
5398         err =
5399             ipw2100_set_wep_flags(priv,
5400                                   priv->ieee->sec.
5401                                   enabled ? IPW_PRIVACY_CAPABLE : 0, 1);
5402         if (err)
5403                 goto exit;
5404
5405         priv->status &= ~STATUS_SECURITY_UPDATED;
5406
5407       exit:
5408         if (!batch_mode)
5409                 ipw2100_enable_adapter(priv);
5410
5411         return err;
5412 }
5413
5414 static void ipw2100_security_work(struct ipw2100_priv *priv)
5415 {
5416         /* If we happen to have reconnected before we get a chance to
5417          * process this, then update the security settings--which causes
5418          * a disassociation to occur */
5419         if (!(priv->status & STATUS_ASSOCIATED) &&
5420             priv->status & STATUS_SECURITY_UPDATED)
5421                 ipw2100_configure_security(priv, 0);
5422 }
5423
5424 static void shim__set_security(struct net_device *dev,
5425                                struct ieee80211_security *sec)
5426 {
5427         struct ipw2100_priv *priv = ieee80211_priv(dev);
5428         int i, force_update = 0;
5429
5430         down(&priv->action_sem);
5431         if (!(priv->status & STATUS_INITIALIZED))
5432                 goto done;
5433
5434         for (i = 0; i < 4; i++) {
5435                 if (sec->flags & (1 << i)) {
5436                         priv->ieee->sec.key_sizes[i] = sec->key_sizes[i];
5437                         if (sec->key_sizes[i] == 0)
5438                                 priv->ieee->sec.flags &= ~(1 << i);
5439                         else
5440                                 memcpy(priv->ieee->sec.keys[i], sec->keys[i],
5441                                        sec->key_sizes[i]);
5442                         priv->ieee->sec.flags |= (1 << i);
5443                         priv->status |= STATUS_SECURITY_UPDATED;
5444                 }
5445         }
5446
5447         if ((sec->flags & SEC_ACTIVE_KEY) &&
5448             priv->ieee->sec.active_key != sec->active_key) {
5449                 if (sec->active_key <= 3) {
5450                         priv->ieee->sec.active_key = sec->active_key;
5451                         priv->ieee->sec.flags |= SEC_ACTIVE_KEY;
5452                 } else
5453                         priv->ieee->sec.flags &= ~SEC_ACTIVE_KEY;
5454
5455                 priv->status |= STATUS_SECURITY_UPDATED;
5456         }
5457
5458         if ((sec->flags & SEC_AUTH_MODE) &&
5459             (priv->ieee->sec.auth_mode != sec->auth_mode)) {
5460                 priv->ieee->sec.auth_mode = sec->auth_mode;
5461                 priv->ieee->sec.flags |= SEC_AUTH_MODE;
5462                 priv->status |= STATUS_SECURITY_UPDATED;
5463         }
5464
5465         if (sec->flags & SEC_ENABLED && priv->ieee->sec.enabled != sec->enabled) {
5466                 priv->ieee->sec.flags |= SEC_ENABLED;
5467                 priv->ieee->sec.enabled = sec->enabled;
5468                 priv->status |= STATUS_SECURITY_UPDATED;
5469                 force_update = 1;
5470         }
5471
5472         if (sec->flags & SEC_ENCRYPT)
5473                 priv->ieee->sec.encrypt = sec->encrypt;
5474
5475         if (sec->flags & SEC_LEVEL && priv->ieee->sec.level != sec->level) {
5476                 priv->ieee->sec.level = sec->level;
5477                 priv->ieee->sec.flags |= SEC_LEVEL;
5478                 priv->status |= STATUS_SECURITY_UPDATED;
5479         }
5480
5481         IPW_DEBUG_WEP("Security flags: %c %c%c%c%c %c%c%c%c\n",
5482                       priv->ieee->sec.flags & (1 << 8) ? '1' : '0',
5483                       priv->ieee->sec.flags & (1 << 7) ? '1' : '0',
5484                       priv->ieee->sec.flags & (1 << 6) ? '1' : '0',
5485                       priv->ieee->sec.flags & (1 << 5) ? '1' : '0',
5486                       priv->ieee->sec.flags & (1 << 4) ? '1' : '0',
5487                       priv->ieee->sec.flags & (1 << 3) ? '1' : '0',
5488                       priv->ieee->sec.flags & (1 << 2) ? '1' : '0',
5489                       priv->ieee->sec.flags & (1 << 1) ? '1' : '0',
5490                       priv->ieee->sec.flags & (1 << 0) ? '1' : '0');
5491
5492 /* As a temporary work around to enable WPA until we figure out why
5493  * wpa_supplicant toggles the security capability of the driver, which
5494  * forces a disassocation with force_update...
5495  *
5496  *      if (force_update || !(priv->status & STATUS_ASSOCIATED))*/
5497         if (!(priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)))
5498                 ipw2100_configure_security(priv, 0);
5499       done:
5500         up(&priv->action_sem);
5501 }
5502
5503 static int ipw2100_adapter_setup(struct ipw2100_priv *priv)
5504 {
5505         int err;
5506         int batch_mode = 1;
5507         u8 *bssid;
5508
5509         IPW_DEBUG_INFO("enter\n");
5510
5511         err = ipw2100_disable_adapter(priv);
5512         if (err)
5513                 return err;
5514 #ifdef CONFIG_IPW2100_MONITOR
5515         if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
5516                 err = ipw2100_set_channel(priv, priv->channel, batch_mode);
5517                 if (err)
5518                         return err;
5519
5520                 IPW_DEBUG_INFO("exit\n");
5521
5522                 return 0;
5523         }
5524 #endif                          /* CONFIG_IPW2100_MONITOR */
5525
5526         err = ipw2100_read_mac_address(priv);
5527         if (err)
5528                 return -EIO;
5529
5530         err = ipw2100_set_mac_address(priv, batch_mode);
5531         if (err)
5532                 return err;
5533
5534         err = ipw2100_set_port_type(priv, priv->ieee->iw_mode, batch_mode);
5535         if (err)
5536                 return err;
5537
5538         if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
5539                 err = ipw2100_set_channel(priv, priv->channel, batch_mode);
5540                 if (err)
5541                         return err;
5542         }
5543
5544         err = ipw2100_system_config(priv, batch_mode);
5545         if (err)
5546                 return err;
5547
5548         err = ipw2100_set_tx_rates(priv, priv->tx_rates, batch_mode);
5549         if (err)
5550                 return err;
5551
5552         /* Default to power mode OFF */
5553         err = ipw2100_set_power_mode(priv, IPW_POWER_MODE_CAM);
5554         if (err)
5555                 return err;
5556
5557         err = ipw2100_set_rts_threshold(priv, priv->rts_threshold);
5558         if (err)
5559                 return err;
5560
5561         if (priv->config & CFG_STATIC_BSSID)
5562                 bssid = priv->bssid;
5563         else
5564                 bssid = NULL;
5565         err = ipw2100_set_mandatory_bssid(priv, bssid, batch_mode);
5566         if (err)
5567                 return err;
5568
5569         if (priv->config & CFG_STATIC_ESSID)
5570                 err = ipw2100_set_essid(priv, priv->essid, priv->essid_len,
5571                                         batch_mode);
5572         else
5573                 err = ipw2100_set_essid(priv, NULL, 0, batch_mode);
5574         if (err)
5575                 return err;
5576
5577         err = ipw2100_configure_security(priv, batch_mode);
5578         if (err)
5579                 return err;
5580
5581         if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
5582                 err =
5583                     ipw2100_set_ibss_beacon_interval(priv,
5584                                                      priv->beacon_interval,
5585                                                      batch_mode);
5586                 if (err)
5587                         return err;
5588
5589                 err = ipw2100_set_tx_power(priv, priv->tx_power);
5590                 if (err)
5591                         return err;
5592         }
5593
5594         /*
5595            err = ipw2100_set_fragmentation_threshold(
5596            priv, priv->frag_threshold, batch_mode);
5597            if (err)
5598            return err;
5599          */
5600
5601         IPW_DEBUG_INFO("exit\n");
5602
5603         return 0;
5604 }
5605
5606 /*************************************************************************
5607  *
5608  * EXTERNALLY CALLED METHODS
5609  *
5610  *************************************************************************/
5611
5612 /* This method is called by the network layer -- not to be confused with
5613  * ipw2100_set_mac_address() declared above called by this driver (and this
5614  * method as well) to talk to the firmware */
5615 static int ipw2100_set_address(struct net_device *dev, void *p)
5616 {
5617         struct ipw2100_priv *priv = ieee80211_priv(dev);
5618         struct sockaddr *addr = p;
5619         int err = 0;
5620
5621         if (!is_valid_ether_addr(addr->sa_data))
5622                 return -EADDRNOTAVAIL;
5623
5624         down(&priv->action_sem);
5625
5626         priv->config |= CFG_CUSTOM_MAC;
5627         memcpy(priv->mac_addr, addr->sa_data, ETH_ALEN);
5628
5629         err = ipw2100_set_mac_address(priv, 0);
5630         if (err)
5631                 goto done;
5632
5633         priv->reset_backoff = 0;
5634         up(&priv->action_sem);
5635         ipw2100_reset_adapter(priv);
5636         return 0;
5637
5638       done:
5639         up(&priv->action_sem);
5640         return err;
5641 }
5642
5643 static int ipw2100_open(struct net_device *dev)
5644 {
5645         struct ipw2100_priv *priv = ieee80211_priv(dev);
5646         unsigned long flags;
5647         IPW_DEBUG_INFO("dev->open\n");
5648
5649         spin_lock_irqsave(&priv->low_lock, flags);
5650         if (priv->status & STATUS_ASSOCIATED) {
5651                 netif_carrier_on(dev);
5652                 netif_start_queue(dev);
5653         }
5654         spin_unlock_irqrestore(&priv->low_lock, flags);
5655
5656         return 0;
5657 }
5658
5659 static int ipw2100_close(struct net_device *dev)
5660 {
5661         struct ipw2100_priv *priv = ieee80211_priv(dev);
5662         unsigned long flags;
5663         struct list_head *element;
5664         struct ipw2100_tx_packet *packet;
5665
5666         IPW_DEBUG_INFO("enter\n");
5667
5668         spin_lock_irqsave(&priv->low_lock, flags);
5669
5670         if (priv->status & STATUS_ASSOCIATED)
5671                 netif_carrier_off(dev);
5672         netif_stop_queue(dev);
5673
5674         /* Flush the TX queue ... */
5675         while (!list_empty(&priv->tx_pend_list)) {
5676                 element = priv->tx_pend_list.next;
5677                 packet = list_entry(element, struct ipw2100_tx_packet, list);
5678
5679                 list_del(element);
5680                 DEC_STAT(&priv->tx_pend_stat);
5681
5682                 ieee80211_txb_free(packet->info.d_struct.txb);
5683                 packet->info.d_struct.txb = NULL;
5684
5685                 list_add_tail(element, &priv->tx_free_list);
5686                 INC_STAT(&priv->tx_free_stat);
5687         }
5688         spin_unlock_irqrestore(&priv->low_lock, flags);
5689
5690         IPW_DEBUG_INFO("exit\n");
5691
5692         return 0;
5693 }
5694
5695 /*
5696  * TODO:  Fix this function... its just wrong
5697  */
5698 static void ipw2100_tx_timeout(struct net_device *dev)
5699 {
5700         struct ipw2100_priv *priv = ieee80211_priv(dev);
5701
5702         priv->ieee->stats.tx_errors++;
5703
5704 #ifdef CONFIG_IPW2100_MONITOR
5705         if (priv->ieee->iw_mode == IW_MODE_MONITOR)
5706                 return;
5707 #endif
5708
5709         IPW_DEBUG_INFO("%s: TX timed out.  Scheduling firmware restart.\n",
5710                        dev->name);
5711         schedule_reset(priv);
5712 }
5713
5714 /*
5715  * TODO: reimplement it so that it reads statistics
5716  *       from the adapter using ordinal tables
5717  *       instead of/in addition to collecting them
5718  *       in the driver
5719  */
5720 static struct net_device_stats *ipw2100_stats(struct net_device *dev)
5721 {
5722         struct ipw2100_priv *priv = ieee80211_priv(dev);
5723
5724         return &priv->ieee->stats;
5725 }
5726
5727 #if WIRELESS_EXT < 18
5728 /* Support for wpa_supplicant before WE-18, deprecated. */
5729
5730 /* following definitions must match definitions in driver_ipw.c */
5731
5732 #define IPW2100_IOCTL_WPA_SUPPLICANT            SIOCIWFIRSTPRIV+30
5733
5734 #define IPW2100_CMD_SET_WPA_PARAM               1
5735 #define IPW2100_CMD_SET_WPA_IE                  2
5736 #define IPW2100_CMD_SET_ENCRYPTION              3
5737 #define IPW2100_CMD_MLME                        4
5738
5739 #define IPW2100_PARAM_WPA_ENABLED               1
5740 #define IPW2100_PARAM_TKIP_COUNTERMEASURES      2
5741 #define IPW2100_PARAM_DROP_UNENCRYPTED          3
5742 #define IPW2100_PARAM_PRIVACY_INVOKED           4
5743 #define IPW2100_PARAM_AUTH_ALGS                 5
5744 #define IPW2100_PARAM_IEEE_802_1X               6
5745
5746 #define IPW2100_MLME_STA_DEAUTH                 1
5747 #define IPW2100_MLME_STA_DISASSOC               2
5748
5749 #define IPW2100_CRYPT_ERR_UNKNOWN_ALG           2
5750 #define IPW2100_CRYPT_ERR_UNKNOWN_ADDR          3
5751 #define IPW2100_CRYPT_ERR_CRYPT_INIT_FAILED     4
5752 #define IPW2100_CRYPT_ERR_KEY_SET_FAILED        5
5753 #define IPW2100_CRYPT_ERR_TX_KEY_SET_FAILED     6
5754 #define IPW2100_CRYPT_ERR_CARD_CONF_FAILED      7
5755
5756 #define IPW2100_CRYPT_ALG_NAME_LEN              16
5757
5758 struct ipw2100_param {
5759         u32 cmd;
5760         u8 sta_addr[ETH_ALEN];
5761         union {
5762                 struct {
5763                         u8 name;
5764                         u32 value;
5765                 } wpa_param;
5766                 struct {
5767                         u32 len;
5768                         u8 reserved[32];
5769                         u8 data[0];
5770                 } wpa_ie;
5771                 struct {
5772                         u32 command;
5773                         u32 reason_code;
5774                 } mlme;
5775                 struct {
5776                         u8 alg[IPW2100_CRYPT_ALG_NAME_LEN];
5777                         u8 set_tx;
5778                         u32 err;
5779                         u8 idx;
5780                         u8 seq[8];      /* sequence counter (set: RX, get: TX) */
5781                         u16 key_len;
5782                         u8 key[0];
5783                 } crypt;
5784
5785         } u;
5786 };
5787
5788 /* end of driver_ipw.c code */
5789 #endif                          /* WIRELESS_EXT < 18 */
5790
5791 static int ipw2100_wpa_enable(struct ipw2100_priv *priv, int value)
5792 {
5793         /* This is called when wpa_supplicant loads and closes the driver
5794          * interface. */
5795         priv->ieee->wpa_enabled = value;
5796         return 0;
5797 }
5798
5799 #if WIRELESS_EXT < 18
5800 #define IW_AUTH_ALG_OPEN_SYSTEM                 0x1
5801 #define IW_AUTH_ALG_SHARED_KEY                  0x2
5802 #endif
5803
5804 static int ipw2100_wpa_set_auth_algs(struct ipw2100_priv *priv, int value)
5805 {
5806
5807         struct ieee80211_device *ieee = priv->ieee;
5808         struct ieee80211_security sec = {
5809                 .flags = SEC_AUTH_MODE,
5810         };
5811         int ret = 0;
5812
5813         if (value & IW_AUTH_ALG_SHARED_KEY) {
5814                 sec.auth_mode = WLAN_AUTH_SHARED_KEY;
5815                 ieee->open_wep = 0;
5816         } else if (value & IW_AUTH_ALG_OPEN_SYSTEM) {
5817                 sec.auth_mode = WLAN_AUTH_OPEN;
5818                 ieee->open_wep = 1;
5819         } else
5820                 return -EINVAL;
5821
5822         if (ieee->set_security)
5823                 ieee->set_security(ieee->dev, &sec);
5824         else
5825                 ret = -EOPNOTSUPP;
5826
5827         return ret;
5828 }
5829
5830 void ipw2100_wpa_assoc_frame(struct ipw2100_priv *priv,
5831                              char *wpa_ie, int wpa_ie_len)
5832 {
5833
5834         struct ipw2100_wpa_assoc_frame frame;
5835
5836         frame.fixed_ie_mask = 0;
5837
5838         /* copy WPA IE */
5839         memcpy(frame.var_ie, wpa_ie, wpa_ie_len);
5840         frame.var_ie_len = wpa_ie_len;
5841
5842         /* make sure WPA is enabled */
5843         ipw2100_wpa_enable(priv, 1);
5844         ipw2100_set_wpa_ie(priv, &frame, 0);
5845 }
5846
5847 #if WIRELESS_EXT < 18
5848 static int ipw2100_wpa_set_param(struct net_device *dev, u8 name, u32 value)
5849 {
5850         struct ipw2100_priv *priv = ieee80211_priv(dev);
5851         struct ieee80211_crypt_data *crypt;
5852         unsigned long flags;
5853         int ret = 0;
5854
5855         switch (name) {
5856         case IPW2100_PARAM_WPA_ENABLED:
5857                 ret = ipw2100_wpa_enable(priv, value);
5858                 break;
5859
5860         case IPW2100_PARAM_TKIP_COUNTERMEASURES:
5861                 crypt = priv->ieee->crypt[priv->ieee->tx_keyidx];
5862                 if (!crypt || !crypt->ops->set_flags || !crypt->ops->get_flags) {
5863                         IPW_DEBUG_WARNING("Can't set TKIP countermeasures: "
5864                                           "crypt not set!\n");
5865                         break;
5866                 }
5867
5868                 flags = crypt->ops->get_flags(crypt->priv);
5869
5870                 if (value)
5871                         flags |= IEEE80211_CRYPTO_TKIP_COUNTERMEASURES;
5872                 else
5873                         flags &= ~IEEE80211_CRYPTO_TKIP_COUNTERMEASURES;
5874
5875                 crypt->ops->set_flags(flags, crypt->priv);
5876
5877                 break;
5878
5879         case IPW2100_PARAM_DROP_UNENCRYPTED:
5880                 priv->ieee->drop_unencrypted = value;
5881                 break;
5882
5883         case IPW2100_PARAM_PRIVACY_INVOKED:
5884                 priv->ieee->privacy_invoked = value;
5885                 break;
5886
5887         case IPW2100_PARAM_AUTH_ALGS:
5888                 ret = ipw2100_wpa_set_auth_algs(priv, value);
5889                 break;
5890
5891         case IPW2100_PARAM_IEEE_802_1X:
5892                 priv->ieee->ieee802_1x = value;
5893                 break;
5894
5895         default:
5896                 printk(KERN_ERR DRV_NAME ": %s: Unknown WPA param: %d\n",
5897                        dev->name, name);
5898                 ret = -EOPNOTSUPP;
5899         }
5900
5901         return ret;
5902 }
5903
5904 static int ipw2100_wpa_mlme(struct net_device *dev, int command, int reason)
5905 {
5906
5907         struct ipw2100_priv *priv = ieee80211_priv(dev);
5908         int ret = 0;
5909
5910         switch (command) {
5911         case IPW2100_MLME_STA_DEAUTH:
5912                 // silently ignore
5913                 break;
5914
5915         case IPW2100_MLME_STA_DISASSOC:
5916                 ipw2100_disassociate_bssid(priv);
5917                 break;
5918
5919         default:
5920                 printk(KERN_ERR DRV_NAME ": %s: Unknown MLME request: %d\n",
5921                        dev->name, command);
5922                 ret = -EOPNOTSUPP;
5923         }
5924
5925         return ret;
5926 }
5927
5928 static int ipw2100_wpa_set_wpa_ie(struct net_device *dev,
5929                                   struct ipw2100_param *param, int plen)
5930 {
5931
5932         struct ipw2100_priv *priv = ieee80211_priv(dev);
5933         struct ieee80211_device *ieee = priv->ieee;
5934         u8 *buf;
5935
5936         if (!ieee->wpa_enabled)
5937                 return -EOPNOTSUPP;
5938
5939         if (param->u.wpa_ie.len > MAX_WPA_IE_LEN ||
5940             (param->u.wpa_ie.len && param->u.wpa_ie.data == NULL))
5941                 return -EINVAL;
5942
5943         if (param->u.wpa_ie.len) {
5944                 buf = kmalloc(param->u.wpa_ie.len, GFP_KERNEL);
5945                 if (buf == NULL)
5946                         return -ENOMEM;
5947
5948                 memcpy(buf, param->u.wpa_ie.data, param->u.wpa_ie.len);
5949
5950                 kfree(ieee->wpa_ie);
5951                 ieee->wpa_ie = buf;
5952                 ieee->wpa_ie_len = param->u.wpa_ie.len;
5953
5954         } else {
5955                 kfree(ieee->wpa_ie);
5956                 ieee->wpa_ie = NULL;
5957                 ieee->wpa_ie_len = 0;
5958         }
5959
5960         ipw2100_wpa_assoc_frame(priv, ieee->wpa_ie, ieee->wpa_ie_len);
5961
5962         return 0;
5963 }
5964
5965 /* implementation borrowed from hostap driver */
5966
5967 static int ipw2100_wpa_set_encryption(struct net_device *dev,
5968                                       struct ipw2100_param *param,
5969                                       int param_len)
5970 {
5971         int ret = 0;
5972         struct ipw2100_priv *priv = ieee80211_priv(dev);
5973         struct ieee80211_device *ieee = priv->ieee;
5974         struct ieee80211_crypto_ops *ops;
5975         struct ieee80211_crypt_data **crypt;
5976
5977         struct ieee80211_security sec = {
5978                 .flags = 0,
5979         };
5980
5981         param->u.crypt.err = 0;
5982         param->u.crypt.alg[IPW2100_CRYPT_ALG_NAME_LEN - 1] = '\0';
5983
5984         if (param_len !=
5985             (int)((char *)param->u.crypt.key - (char *)param) +
5986             param->u.crypt.key_len) {
5987                 IPW_DEBUG_INFO("Len mismatch %d, %d\n", param_len,
5988                                param->u.crypt.key_len);
5989                 return -EINVAL;
5990         }
5991         if (param->sta_addr[0] == 0xff && param->sta_addr[1] == 0xff &&
5992             param->sta_addr[2] == 0xff && param->sta_addr[3] == 0xff &&
5993             param->sta_addr[4] == 0xff && param->sta_addr[5] == 0xff) {
5994                 if (param->u.crypt.idx >= WEP_KEYS)
5995                         return -EINVAL;
5996                 crypt = &ieee->crypt[param->u.crypt.idx];
5997         } else {
5998                 return -EINVAL;
5999         }
6000
6001         sec.flags |= SEC_ENABLED | SEC_ENCRYPT;
6002         if (strcmp(param->u.crypt.alg, "none") == 0) {
6003                 if (crypt) {
6004                         sec.enabled = 0;
6005                         sec.encrypt = 0;
6006                         sec.level = SEC_LEVEL_0;
6007                         sec.flags |= SEC_LEVEL;
6008                         ieee80211_crypt_delayed_deinit(ieee, crypt);
6009                 }
6010                 goto done;
6011         }
6012         sec.enabled = 1;
6013         sec.encrypt = 1;
6014
6015         ops = ieee80211_get_crypto_ops(param->u.crypt.alg);
6016         if (ops == NULL && strcmp(param->u.crypt.alg, "WEP") == 0) {
6017                 request_module("ieee80211_crypt_wep");
6018                 ops = ieee80211_get_crypto_ops(param->u.crypt.alg);
6019         } else if (ops == NULL && strcmp(param->u.crypt.alg, "TKIP") == 0) {
6020                 request_module("ieee80211_crypt_tkip");
6021                 ops = ieee80211_get_crypto_ops(param->u.crypt.alg);
6022         } else if (ops == NULL && strcmp(param->u.crypt.alg, "CCMP") == 0) {
6023                 request_module("ieee80211_crypt_ccmp");
6024                 ops = ieee80211_get_crypto_ops(param->u.crypt.alg);
6025         }
6026         if (ops == NULL) {
6027                 IPW_DEBUG_INFO("%s: unknown crypto alg '%s'\n",
6028                                dev->name, param->u.crypt.alg);
6029                 param->u.crypt.err = IPW2100_CRYPT_ERR_UNKNOWN_ALG;
6030                 ret = -EINVAL;
6031                 goto done;
6032         }
6033
6034         if (*crypt == NULL || (*crypt)->ops != ops) {
6035                 struct ieee80211_crypt_data *new_crypt;
6036
6037                 ieee80211_crypt_delayed_deinit(ieee, crypt);
6038
6039                 new_crypt = (struct ieee80211_crypt_data *)
6040                     kmalloc(sizeof(struct ieee80211_crypt_data), GFP_KERNEL);
6041                 if (new_crypt == NULL) {
6042                         ret = -ENOMEM;
6043                         goto done;
6044                 }
6045                 memset(new_crypt, 0, sizeof(struct ieee80211_crypt_data));
6046                 new_crypt->ops = ops;
6047                 if (new_crypt->ops && try_module_get(new_crypt->ops->owner))
6048                         new_crypt->priv =
6049                             new_crypt->ops->init(param->u.crypt.idx);
6050
6051                 if (new_crypt->priv == NULL) {
6052                         kfree(new_crypt);
6053                         param->u.crypt.err =
6054                             IPW2100_CRYPT_ERR_CRYPT_INIT_FAILED;
6055                         ret = -EINVAL;
6056                         goto done;
6057                 }
6058
6059                 *crypt = new_crypt;
6060         }
6061
6062         if (param->u.crypt.key_len > 0 && (*crypt)->ops->set_key &&
6063             (*crypt)->ops->set_key(param->u.crypt.key,
6064                                    param->u.crypt.key_len, param->u.crypt.seq,
6065                                    (*crypt)->priv) < 0) {
6066                 IPW_DEBUG_INFO("%s: key setting failed\n", dev->name);
6067                 param->u.crypt.err = IPW2100_CRYPT_ERR_KEY_SET_FAILED;
6068                 ret = -EINVAL;
6069                 goto done;
6070         }
6071
6072         if (param->u.crypt.set_tx) {
6073                 ieee->tx_keyidx = param->u.crypt.idx;
6074                 sec.active_key = param->u.crypt.idx;
6075                 sec.flags |= SEC_ACTIVE_KEY;
6076         }
6077
6078         if (ops->name != NULL) {
6079
6080                 if (strcmp(ops->name, "WEP") == 0) {
6081                         memcpy(sec.keys[param->u.crypt.idx],
6082                                param->u.crypt.key, param->u.crypt.key_len);
6083                         sec.key_sizes[param->u.crypt.idx] =
6084                             param->u.crypt.key_len;
6085                         sec.flags |= (1 << param->u.crypt.idx);
6086                         sec.flags |= SEC_LEVEL;
6087                         sec.level = SEC_LEVEL_1;
6088                 } else if (strcmp(ops->name, "TKIP") == 0) {
6089                         sec.flags |= SEC_LEVEL;
6090                         sec.level = SEC_LEVEL_2;
6091                 } else if (strcmp(ops->name, "CCMP") == 0) {
6092                         sec.flags |= SEC_LEVEL;
6093                         sec.level = SEC_LEVEL_3;
6094                 }
6095         }
6096       done:
6097         if (ieee->set_security)
6098                 ieee->set_security(ieee->dev, &sec);
6099
6100         /* Do not reset port if card is in Managed mode since resetting will
6101          * generate new IEEE 802.11 authentication which may end up in looping
6102          * with IEEE 802.1X.  If your hardware requires a reset after WEP
6103          * configuration (for example... Prism2), implement the reset_port in
6104          * the callbacks structures used to initialize the 802.11 stack. */
6105         if (ieee->reset_on_keychange &&
6106             ieee->iw_mode != IW_MODE_INFRA &&
6107             ieee->reset_port && ieee->reset_port(dev)) {
6108                 IPW_DEBUG_INFO("%s: reset_port failed\n", dev->name);
6109                 param->u.crypt.err = IPW2100_CRYPT_ERR_CARD_CONF_FAILED;
6110                 return -EINVAL;
6111         }
6112
6113         return ret;
6114 }
6115
6116 static int ipw2100_wpa_supplicant(struct net_device *dev, struct iw_point *p)
6117 {
6118
6119         struct ipw2100_param *param;
6120         int ret = 0;
6121
6122         IPW_DEBUG_IOCTL("wpa_supplicant: len=%d\n", p->length);
6123
6124         if (p->length < sizeof(struct ipw2100_param) || !p->pointer)
6125                 return -EINVAL;
6126
6127         param = (struct ipw2100_param *)kmalloc(p->length, GFP_KERNEL);
6128         if (param == NULL)
6129                 return -ENOMEM;
6130
6131         if (copy_from_user(param, p->pointer, p->length)) {
6132                 kfree(param);
6133                 return -EFAULT;
6134         }
6135
6136         switch (param->cmd) {
6137
6138         case IPW2100_CMD_SET_WPA_PARAM:
6139                 ret = ipw2100_wpa_set_param(dev, param->u.wpa_param.name,
6140                                             param->u.wpa_param.value);
6141                 break;
6142
6143         case IPW2100_CMD_SET_WPA_IE:
6144                 ret = ipw2100_wpa_set_wpa_ie(dev, param, p->length);
6145                 break;
6146
6147         case IPW2100_CMD_SET_ENCRYPTION:
6148                 ret = ipw2100_wpa_set_encryption(dev, param, p->length);
6149                 break;
6150
6151         case IPW2100_CMD_MLME:
6152                 ret = ipw2100_wpa_mlme(dev, param->u.mlme.command,
6153                                        param->u.mlme.reason_code);
6154                 break;
6155
6156         default:
6157                 printk(KERN_ERR DRV_NAME
6158                        ": %s: Unknown WPA supplicant request: %d\n", dev->name,
6159                        param->cmd);
6160                 ret = -EOPNOTSUPP;
6161
6162         }
6163
6164         if (ret == 0 && copy_to_user(p->pointer, param, p->length))
6165                 ret = -EFAULT;
6166
6167         kfree(param);
6168         return ret;
6169 }
6170
6171 static int ipw2100_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
6172 {
6173         struct iwreq *wrq = (struct iwreq *)rq;
6174         int ret = -1;
6175         switch (cmd) {
6176         case IPW2100_IOCTL_WPA_SUPPLICANT:
6177                 ret = ipw2100_wpa_supplicant(dev, &wrq->u.data);
6178                 return ret;
6179
6180         default:
6181                 return -EOPNOTSUPP;
6182         }
6183
6184         return -EOPNOTSUPP;
6185 }
6186 #endif                          /* WIRELESS_EXT < 18 */
6187
6188 static void ipw_ethtool_get_drvinfo(struct net_device *dev,
6189                                     struct ethtool_drvinfo *info)
6190 {
6191         struct ipw2100_priv *priv = ieee80211_priv(dev);
6192         char fw_ver[64], ucode_ver[64];
6193
6194         strcpy(info->driver, DRV_NAME);
6195         strcpy(info->version, DRV_VERSION);
6196
6197         ipw2100_get_fwversion(priv, fw_ver, sizeof(fw_ver));
6198         ipw2100_get_ucodeversion(priv, ucode_ver, sizeof(ucode_ver));
6199
6200         snprintf(info->fw_version, sizeof(info->fw_version), "%s:%d:%s",
6201                  fw_ver, priv->eeprom_version, ucode_ver);
6202
6203         strcpy(info->bus_info, pci_name(priv->pci_dev));
6204 }
6205
6206 static u32 ipw2100_ethtool_get_link(struct net_device *dev)
6207 {
6208         struct ipw2100_priv *priv = ieee80211_priv(dev);
6209         return (priv->status & STATUS_ASSOCIATED) ? 1 : 0;
6210 }
6211
6212 static struct ethtool_ops ipw2100_ethtool_ops = {
6213         .get_link = ipw2100_ethtool_get_link,
6214         .get_drvinfo = ipw_ethtool_get_drvinfo,
6215 };
6216
6217 static void ipw2100_hang_check(void *adapter)
6218 {
6219         struct ipw2100_priv *priv = adapter;
6220         unsigned long flags;
6221         u32 rtc = 0xa5a5a5a5;
6222         u32 len = sizeof(rtc);
6223         int restart = 0;
6224
6225         spin_lock_irqsave(&priv->low_lock, flags);
6226
6227         if (priv->fatal_error != 0) {
6228                 /* If fatal_error is set then we need to restart */
6229                 IPW_DEBUG_INFO("%s: Hardware fatal error detected.\n",
6230                                priv->net_dev->name);
6231
6232                 restart = 1;
6233         } else if (ipw2100_get_ordinal(priv, IPW_ORD_RTC_TIME, &rtc, &len) ||
6234                    (rtc == priv->last_rtc)) {
6235                 /* Check if firmware is hung */
6236                 IPW_DEBUG_INFO("%s: Firmware RTC stalled.\n",
6237                                priv->net_dev->name);
6238
6239                 restart = 1;
6240         }
6241
6242         if (restart) {
6243                 /* Kill timer */
6244                 priv->stop_hang_check = 1;
6245                 priv->hangs++;
6246
6247                 /* Restart the NIC */
6248                 schedule_reset(priv);
6249         }
6250
6251         priv->last_rtc = rtc;
6252
6253         if (!priv->stop_hang_check)
6254                 queue_delayed_work(priv->workqueue, &priv->hang_check, HZ / 2);
6255
6256         spin_unlock_irqrestore(&priv->low_lock, flags);
6257 }
6258
6259 static void ipw2100_rf_kill(void *adapter)
6260 {
6261         struct ipw2100_priv *priv = adapter;
6262         unsigned long flags;
6263
6264         spin_lock_irqsave(&priv->low_lock, flags);
6265
6266         if (rf_kill_active(priv)) {
6267                 IPW_DEBUG_RF_KILL("RF Kill active, rescheduling GPIO check\n");
6268                 if (!priv->stop_rf_kill)
6269                         queue_delayed_work(priv->workqueue, &priv->rf_kill, HZ);
6270                 goto exit_unlock;
6271         }
6272
6273         /* RF Kill is now disabled, so bring the device back up */
6274
6275         if (!(priv->status & STATUS_RF_KILL_MASK)) {
6276                 IPW_DEBUG_RF_KILL("HW RF Kill no longer active, restarting "
6277                                   "device\n");
6278                 schedule_reset(priv);
6279         } else
6280                 IPW_DEBUG_RF_KILL("HW RF Kill deactivated.  SW RF Kill still "
6281                                   "enabled\n");
6282
6283       exit_unlock:
6284         spin_unlock_irqrestore(&priv->low_lock, flags);
6285 }
6286
6287 static void ipw2100_irq_tasklet(struct ipw2100_priv *priv);
6288
6289 /* Look into using netdev destructor to shutdown ieee80211? */
6290
6291 static struct net_device *ipw2100_alloc_device(struct pci_dev *pci_dev,
6292                                                void __iomem * base_addr,
6293                                                unsigned long mem_start,
6294                                                unsigned long mem_len)
6295 {
6296         struct ipw2100_priv *priv;
6297         struct net_device *dev;
6298
6299         dev = alloc_ieee80211(sizeof(struct ipw2100_priv));
6300         if (!dev)
6301                 return NULL;
6302         priv = ieee80211_priv(dev);
6303         priv->ieee = netdev_priv(dev);
6304         priv->pci_dev = pci_dev;
6305         priv->net_dev = dev;
6306
6307         priv->ieee->hard_start_xmit = ipw2100_tx;
6308         priv->ieee->set_security = shim__set_security;
6309
6310         priv->ieee->perfect_rssi = -20;
6311         priv->ieee->worst_rssi = -85;
6312
6313         dev->open = ipw2100_open;
6314         dev->stop = ipw2100_close;
6315         dev->init = ipw2100_net_init;
6316 #if WIRELESS_EXT < 18
6317         dev->do_ioctl = ipw2100_ioctl;
6318 #endif
6319         dev->get_stats = ipw2100_stats;
6320         dev->ethtool_ops = &ipw2100_ethtool_ops;
6321         dev->tx_timeout = ipw2100_tx_timeout;
6322         dev->wireless_handlers = &ipw2100_wx_handler_def;
6323         dev->get_wireless_stats = ipw2100_wx_wireless_stats;
6324         dev->set_mac_address = ipw2100_set_address;
6325         dev->watchdog_timeo = 3 * HZ;
6326         dev->irq = 0;
6327
6328         dev->base_addr = (unsigned long)base_addr;
6329         dev->mem_start = mem_start;
6330         dev->mem_end = dev->mem_start + mem_len - 1;
6331
6332         /* NOTE: We don't use the wireless_handlers hook
6333          * in dev as the system will start throwing WX requests
6334          * to us before we're actually initialized and it just
6335          * ends up causing problems.  So, we just handle
6336          * the WX extensions through the ipw2100_ioctl interface */
6337
6338         /* memset() puts everything to 0, so we only have explicitely set
6339          * those values that need to be something else */
6340
6341         /* If power management is turned on, default to AUTO mode */
6342         priv->power_mode = IPW_POWER_AUTO;
6343
6344 #ifdef CONFIG_IPW2100_MONITOR
6345         priv->config |= CFG_CRC_CHECK;
6346 #endif
6347         priv->ieee->wpa_enabled = 0;
6348         priv->ieee->drop_unencrypted = 0;
6349         priv->ieee->privacy_invoked = 0;
6350         priv->ieee->ieee802_1x = 1;
6351
6352         /* Set module parameters */
6353         switch (mode) {
6354         case 1:
6355                 priv->ieee->iw_mode = IW_MODE_ADHOC;
6356                 break;
6357 #ifdef CONFIG_IPW2100_MONITOR
6358         case 2:
6359                 priv->ieee->iw_mode = IW_MODE_MONITOR;
6360                 break;
6361 #endif
6362         default:
6363         case 0:
6364                 priv->ieee->iw_mode = IW_MODE_INFRA;
6365                 break;
6366         }
6367
6368         if (disable == 1)
6369                 priv->status |= STATUS_RF_KILL_SW;
6370
6371         if (channel != 0 &&
6372             ((channel >= REG_MIN_CHANNEL) && (channel <= REG_MAX_CHANNEL))) {
6373                 priv->config |= CFG_STATIC_CHANNEL;
6374                 priv->channel = channel;
6375         }
6376
6377         if (associate)
6378                 priv->config |= CFG_ASSOCIATE;
6379
6380         priv->beacon_interval = DEFAULT_BEACON_INTERVAL;
6381         priv->short_retry_limit = DEFAULT_SHORT_RETRY_LIMIT;
6382         priv->long_retry_limit = DEFAULT_LONG_RETRY_LIMIT;
6383         priv->rts_threshold = DEFAULT_RTS_THRESHOLD | RTS_DISABLED;
6384         priv->frag_threshold = DEFAULT_FTS | FRAG_DISABLED;
6385         priv->tx_power = IPW_TX_POWER_DEFAULT;
6386         priv->tx_rates = DEFAULT_TX_RATES;
6387
6388         strcpy(priv->nick, "ipw2100");
6389
6390         spin_lock_init(&priv->low_lock);
6391         sema_init(&priv->action_sem, 1);
6392         sema_init(&priv->adapter_sem, 1);
6393
6394         init_waitqueue_head(&priv->wait_command_queue);
6395
6396         netif_carrier_off(dev);
6397
6398         INIT_LIST_HEAD(&priv->msg_free_list);
6399         INIT_LIST_HEAD(&priv->msg_pend_list);
6400         INIT_STAT(&priv->msg_free_stat);
6401         INIT_STAT(&priv->msg_pend_stat);
6402
6403         INIT_LIST_HEAD(&priv->tx_free_list);
6404         INIT_LIST_HEAD(&priv->tx_pend_list);
6405         INIT_STAT(&priv->tx_free_stat);
6406         INIT_STAT(&priv->tx_pend_stat);
6407
6408         INIT_LIST_HEAD(&priv->fw_pend_list);
6409         INIT_STAT(&priv->fw_pend_stat);
6410
6411 #ifdef PF_SYNCTHREAD
6412         priv->workqueue = create_workqueue(DRV_NAME, 0);
6413 #else
6414         priv->workqueue = create_workqueue(DRV_NAME);
6415 #endif
6416         INIT_WORK(&priv->reset_work,
6417                   (void (*)(void *))ipw2100_reset_adapter, priv);
6418         INIT_WORK(&priv->security_work,
6419                   (void (*)(void *))ipw2100_security_work, priv);
6420         INIT_WORK(&priv->wx_event_work,
6421                   (void (*)(void *))ipw2100_wx_event_work, priv);
6422         INIT_WORK(&priv->hang_check, ipw2100_hang_check, priv);
6423         INIT_WORK(&priv->rf_kill, ipw2100_rf_kill, priv);
6424
6425         tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long))
6426                      ipw2100_irq_tasklet, (unsigned long)priv);
6427
6428         /* NOTE:  We do not start the deferred work for status checks yet */
6429         priv->stop_rf_kill = 1;
6430         priv->stop_hang_check = 1;
6431
6432         return dev;
6433 }
6434
6435 static int ipw2100_pci_init_one(struct pci_dev *pci_dev,
6436                                 const struct pci_device_id *ent)
6437 {
6438         unsigned long mem_start, mem_len, mem_flags;
6439         void __iomem *base_addr = NULL;
6440         struct net_device *dev = NULL;
6441         struct ipw2100_priv *priv = NULL;
6442         int err = 0;
6443         int registered = 0;
6444         u32 val;
6445
6446         IPW_DEBUG_INFO("enter\n");
6447
6448         mem_start = pci_resource_start(pci_dev, 0);
6449         mem_len = pci_resource_len(pci_dev, 0);
6450         mem_flags = pci_resource_flags(pci_dev, 0);
6451
6452         if ((mem_flags & IORESOURCE_MEM) != IORESOURCE_MEM) {
6453                 IPW_DEBUG_INFO("weird - resource type is not memory\n");
6454                 err = -ENODEV;
6455                 goto fail;
6456         }
6457
6458         base_addr = ioremap_nocache(mem_start, mem_len);
6459         if (!base_addr) {
6460                 printk(KERN_WARNING DRV_NAME
6461                        "Error calling ioremap_nocache.\n");
6462                 err = -EIO;
6463                 goto fail;
6464         }
6465
6466         /* allocate and initialize our net_device */
6467         dev = ipw2100_alloc_device(pci_dev, base_addr, mem_start, mem_len);
6468         if (!dev) {
6469                 printk(KERN_WARNING DRV_NAME
6470                        "Error calling ipw2100_alloc_device.\n");
6471                 err = -ENOMEM;
6472                 goto fail;
6473         }
6474
6475         /* set up PCI mappings for device */
6476         err = pci_enable_device(pci_dev);
6477         if (err) {
6478                 printk(KERN_WARNING DRV_NAME
6479                        "Error calling pci_enable_device.\n");
6480                 return err;
6481         }
6482
6483         priv = ieee80211_priv(dev);
6484
6485         pci_set_master(pci_dev);
6486         pci_set_drvdata(pci_dev, priv);
6487
6488         err = pci_set_dma_mask(pci_dev, DMA_32BIT_MASK);
6489         if (err) {
6490                 printk(KERN_WARNING DRV_NAME
6491                        "Error calling pci_set_dma_mask.\n");
6492                 pci_disable_device(pci_dev);
6493                 return err;
6494         }
6495
6496         err = pci_request_regions(pci_dev, DRV_NAME);
6497         if (err) {
6498                 printk(KERN_WARNING DRV_NAME
6499                        "Error calling pci_request_regions.\n");
6500                 pci_disable_device(pci_dev);
6501                 return err;
6502         }
6503
6504         /* We disable the RETRY_TIMEOUT register (0x41) to keep
6505          * PCI Tx retries from interfering with C3 CPU state */
6506         pci_read_config_dword(pci_dev, 0x40, &val);
6507         if ((val & 0x0000ff00) != 0)
6508                 pci_write_config_dword(pci_dev, 0x40, val & 0xffff00ff);
6509
6510         pci_set_power_state(pci_dev, PCI_D0);
6511
6512         if (!ipw2100_hw_is_adapter_in_system(dev)) {
6513                 printk(KERN_WARNING DRV_NAME
6514                        "Device not found via register read.\n");
6515                 err = -ENODEV;
6516                 goto fail;
6517         }
6518
6519         SET_NETDEV_DEV(dev, &pci_dev->dev);
6520
6521         /* Force interrupts to be shut off on the device */
6522         priv->status |= STATUS_INT_ENABLED;
6523         ipw2100_disable_interrupts(priv);
6524
6525         /* Allocate and initialize the Tx/Rx queues and lists */
6526         if (ipw2100_queues_allocate(priv)) {
6527                 printk(KERN_WARNING DRV_NAME
6528                        "Error calilng ipw2100_queues_allocate.\n");
6529                 err = -ENOMEM;
6530                 goto fail;
6531         }
6532         ipw2100_queues_initialize(priv);
6533
6534         err = request_irq(pci_dev->irq,
6535                           ipw2100_interrupt, SA_SHIRQ, dev->name, priv);
6536         if (err) {
6537                 printk(KERN_WARNING DRV_NAME
6538                        "Error calling request_irq: %d.\n", pci_dev->irq);
6539                 goto fail;
6540         }
6541         dev->irq = pci_dev->irq;
6542
6543         IPW_DEBUG_INFO("Attempting to register device...\n");
6544
6545         SET_MODULE_OWNER(dev);
6546
6547         printk(KERN_INFO DRV_NAME
6548                ": Detected Intel PRO/Wireless 2100 Network Connection\n");
6549
6550         /* Bring up the interface.  Pre 0.46, after we registered the
6551          * network device we would call ipw2100_up.  This introduced a race
6552          * condition with newer hotplug configurations (network was coming
6553          * up and making calls before the device was initialized).
6554          *
6555          * If we called ipw2100_up before we registered the device, then the
6556          * device name wasn't registered.  So, we instead use the net_dev->init
6557          * member to call a function that then just turns and calls ipw2100_up.
6558          * net_dev->init is called after name allocation but before the
6559          * notifier chain is called */
6560         down(&priv->action_sem);
6561         err = register_netdev(dev);
6562         if (err) {
6563                 printk(KERN_WARNING DRV_NAME
6564                        "Error calling register_netdev.\n");
6565                 goto fail_unlock;
6566         }
6567         registered = 1;
6568
6569         IPW_DEBUG_INFO("%s: Bound to %s\n", dev->name, pci_name(pci_dev));
6570
6571         /* perform this after register_netdev so that dev->name is set */
6572         sysfs_create_group(&pci_dev->dev.kobj, &ipw2100_attribute_group);
6573
6574         /* If the RF Kill switch is disabled, go ahead and complete the
6575          * startup sequence */
6576         if (!(priv->status & STATUS_RF_KILL_MASK)) {
6577                 /* Enable the adapter - sends HOST_COMPLETE */
6578                 if (ipw2100_enable_adapter(priv)) {
6579                         printk(KERN_WARNING DRV_NAME
6580                                ": %s: failed in call to enable adapter.\n",
6581                                priv->net_dev->name);
6582                         ipw2100_hw_stop_adapter(priv);
6583                         err = -EIO;
6584                         goto fail_unlock;
6585                 }
6586
6587                 /* Start a scan . . . */
6588                 ipw2100_set_scan_options(priv);
6589                 ipw2100_start_scan(priv);
6590         }
6591
6592         IPW_DEBUG_INFO("exit\n");
6593
6594         priv->status |= STATUS_INITIALIZED;
6595
6596         up(&priv->action_sem);
6597
6598         return 0;
6599
6600       fail_unlock:
6601         up(&priv->action_sem);
6602
6603       fail:
6604         if (dev) {
6605                 if (registered)
6606                         unregister_netdev(dev);
6607
6608                 ipw2100_hw_stop_adapter(priv);
6609
6610                 ipw2100_disable_interrupts(priv);
6611
6612                 if (dev->irq)
6613                         free_irq(dev->irq, priv);
6614
6615                 ipw2100_kill_workqueue(priv);
6616
6617                 /* These are safe to call even if they weren't allocated */
6618                 ipw2100_queues_free(priv);
6619                 sysfs_remove_group(&pci_dev->dev.kobj,
6620                                    &ipw2100_attribute_group);
6621
6622                 free_ieee80211(dev);
6623                 pci_set_drvdata(pci_dev, NULL);
6624         }
6625
6626         if (base_addr)
6627                 iounmap(base_addr);
6628
6629         pci_release_regions(pci_dev);
6630         pci_disable_device(pci_dev);
6631
6632         return err;
6633 }
6634
6635 static void __devexit ipw2100_pci_remove_one(struct pci_dev *pci_dev)
6636 {
6637         struct ipw2100_priv *priv = pci_get_drvdata(pci_dev);
6638         struct net_device *dev;
6639
6640         if (priv) {
6641                 down(&priv->action_sem);
6642
6643                 priv->status &= ~STATUS_INITIALIZED;
6644
6645                 dev = priv->net_dev;
6646                 sysfs_remove_group(&pci_dev->dev.kobj,
6647                                    &ipw2100_attribute_group);
6648
6649 #ifdef CONFIG_PM
6650                 if (ipw2100_firmware.version)
6651                         ipw2100_release_firmware(priv, &ipw2100_firmware);
6652 #endif
6653                 /* Take down the hardware */
6654                 ipw2100_down(priv);
6655
6656                 /* Release the semaphore so that the network subsystem can
6657                  * complete any needed calls into the driver... */
6658                 up(&priv->action_sem);
6659
6660                 /* Unregister the device first - this results in close()
6661                  * being called if the device is open.  If we free storage
6662                  * first, then close() will crash. */
6663                 unregister_netdev(dev);
6664
6665                 /* ipw2100_down will ensure that there is no more pending work
6666                  * in the workqueue's, so we can safely remove them now. */
6667                 ipw2100_kill_workqueue(priv);
6668
6669                 ipw2100_queues_free(priv);
6670
6671                 /* Free potential debugging firmware snapshot */
6672                 ipw2100_snapshot_free(priv);
6673
6674                 if (dev->irq)
6675                         free_irq(dev->irq, priv);
6676
6677                 if (dev->base_addr)
6678                         iounmap((void __iomem *)dev->base_addr);
6679
6680                 free_ieee80211(dev);
6681         }
6682
6683         pci_release_regions(pci_dev);
6684         pci_disable_device(pci_dev);
6685
6686         IPW_DEBUG_INFO("exit\n");
6687 }
6688
6689 #ifdef CONFIG_PM
6690 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,11)
6691 static int ipw2100_suspend(struct pci_dev *pci_dev, u32 state)
6692 #else
6693 static int ipw2100_suspend(struct pci_dev *pci_dev, pm_message_t state)
6694 #endif
6695 {
6696         struct ipw2100_priv *priv = pci_get_drvdata(pci_dev);
6697         struct net_device *dev = priv->net_dev;
6698
6699         IPW_DEBUG_INFO("%s: Going into suspend...\n", dev->name);
6700
6701         down(&priv->action_sem);
6702         if (priv->status & STATUS_INITIALIZED) {
6703                 /* Take down the device; powers it off, etc. */
6704                 ipw2100_down(priv);
6705         }
6706
6707         /* Remove the PRESENT state of the device */
6708         netif_device_detach(dev);
6709
6710         pci_save_state(pci_dev);
6711         pci_disable_device(pci_dev);
6712         pci_set_power_state(pci_dev, PCI_D3hot);
6713
6714         up(&priv->action_sem);
6715
6716         return 0;
6717 }
6718
6719 static int ipw2100_resume(struct pci_dev *pci_dev)
6720 {
6721         struct ipw2100_priv *priv = pci_get_drvdata(pci_dev);
6722         struct net_device *dev = priv->net_dev;
6723         u32 val;
6724
6725         if (IPW2100_PM_DISABLED)
6726                 return 0;
6727
6728         down(&priv->action_sem);
6729
6730         IPW_DEBUG_INFO("%s: Coming out of suspend...\n", dev->name);
6731
6732         pci_set_power_state(pci_dev, PCI_D0);
6733         pci_enable_device(pci_dev);
6734         pci_restore_state(pci_dev);
6735
6736         /*
6737          * Suspend/Resume resets the PCI configuration space, so we have to
6738          * re-disable the RETRY_TIMEOUT register (0x41) to keep PCI Tx retries
6739          * from interfering with C3 CPU state. pci_restore_state won't help
6740          * here since it only restores the first 64 bytes pci config header.
6741          */
6742         pci_read_config_dword(pci_dev, 0x40, &val);
6743         if ((val & 0x0000ff00) != 0)
6744                 pci_write_config_dword(pci_dev, 0x40, val & 0xffff00ff);
6745
6746         /* Set the device back into the PRESENT state; this will also wake
6747          * the queue of needed */
6748         netif_device_attach(dev);
6749
6750         /* Bring the device back up */
6751         if (!(priv->status & STATUS_RF_KILL_SW))
6752                 ipw2100_up(priv, 0);
6753
6754         up(&priv->action_sem);
6755
6756         return 0;
6757 }
6758 #endif
6759
6760 #define IPW2100_DEV_ID(x) { PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, x }
6761
6762 static struct pci_device_id ipw2100_pci_id_table[] __devinitdata = {
6763         IPW2100_DEV_ID(0x2520), /* IN 2100A mPCI 3A */
6764         IPW2100_DEV_ID(0x2521), /* IN 2100A mPCI 3B */
6765         IPW2100_DEV_ID(0x2524), /* IN 2100A mPCI 3B */
6766         IPW2100_DEV_ID(0x2525), /* IN 2100A mPCI 3B */
6767         IPW2100_DEV_ID(0x2526), /* IN 2100A mPCI Gen A3 */
6768         IPW2100_DEV_ID(0x2522), /* IN 2100 mPCI 3B */
6769         IPW2100_DEV_ID(0x2523), /* IN 2100 mPCI 3A */
6770         IPW2100_DEV_ID(0x2527), /* IN 2100 mPCI 3B */
6771         IPW2100_DEV_ID(0x2528), /* IN 2100 mPCI 3B */
6772         IPW2100_DEV_ID(0x2529), /* IN 2100 mPCI 3B */
6773         IPW2100_DEV_ID(0x252B), /* IN 2100 mPCI 3A */
6774         IPW2100_DEV_ID(0x252C), /* IN 2100 mPCI 3A */
6775         IPW2100_DEV_ID(0x252D), /* IN 2100 mPCI 3A */
6776
6777         IPW2100_DEV_ID(0x2550), /* IB 2100A mPCI 3B */
6778         IPW2100_DEV_ID(0x2551), /* IB 2100 mPCI 3B */
6779         IPW2100_DEV_ID(0x2553), /* IB 2100 mPCI 3B */
6780         IPW2100_DEV_ID(0x2554), /* IB 2100 mPCI 3B */
6781         IPW2100_DEV_ID(0x2555), /* IB 2100 mPCI 3B */
6782
6783         IPW2100_DEV_ID(0x2560), /* DE 2100A mPCI 3A */
6784         IPW2100_DEV_ID(0x2562), /* DE 2100A mPCI 3A */
6785         IPW2100_DEV_ID(0x2563), /* DE 2100A mPCI 3A */
6786         IPW2100_DEV_ID(0x2561), /* DE 2100 mPCI 3A */
6787         IPW2100_DEV_ID(0x2565), /* DE 2100 mPCI 3A */
6788         IPW2100_DEV_ID(0x2566), /* DE 2100 mPCI 3A */
6789         IPW2100_DEV_ID(0x2567), /* DE 2100 mPCI 3A */
6790
6791         IPW2100_DEV_ID(0x2570), /* GA 2100 mPCI 3B */
6792
6793         IPW2100_DEV_ID(0x2580), /* TO 2100A mPCI 3B */
6794         IPW2100_DEV_ID(0x2582), /* TO 2100A mPCI 3B */
6795         IPW2100_DEV_ID(0x2583), /* TO 2100A mPCI 3B */
6796         IPW2100_DEV_ID(0x2581), /* TO 2100 mPCI 3B */
6797         IPW2100_DEV_ID(0x2585), /* TO 2100 mPCI 3B */
6798         IPW2100_DEV_ID(0x2586), /* TO 2100 mPCI 3B */
6799         IPW2100_DEV_ID(0x2587), /* TO 2100 mPCI 3B */
6800
6801         IPW2100_DEV_ID(0x2590), /* SO 2100A mPCI 3B */
6802         IPW2100_DEV_ID(0x2592), /* SO 2100A mPCI 3B */
6803         IPW2100_DEV_ID(0x2591), /* SO 2100 mPCI 3B */
6804         IPW2100_DEV_ID(0x2593), /* SO 2100 mPCI 3B */
6805         IPW2100_DEV_ID(0x2596), /* SO 2100 mPCI 3B */
6806         IPW2100_DEV_ID(0x2598), /* SO 2100 mPCI 3B */
6807
6808         IPW2100_DEV_ID(0x25A0), /* HP 2100 mPCI 3B */
6809         {0,},
6810 };
6811
6812 MODULE_DEVICE_TABLE(pci, ipw2100_pci_id_table);
6813
6814 static struct pci_driver ipw2100_pci_driver = {
6815         .name = DRV_NAME,
6816         .id_table = ipw2100_pci_id_table,
6817         .probe = ipw2100_pci_init_one,
6818         .remove = __devexit_p(ipw2100_pci_remove_one),
6819 #ifdef CONFIG_PM
6820         .suspend = ipw2100_suspend,
6821         .resume = ipw2100_resume,
6822 #endif
6823 };
6824
6825 /**
6826  * Initialize the ipw2100 driver/module
6827  *
6828  * @returns 0 if ok, < 0 errno node con error.
6829  *
6830  * Note: we cannot init the /proc stuff until the PCI driver is there,
6831  * or we risk an unlikely race condition on someone accessing
6832  * uninitialized data in the PCI dev struct through /proc.
6833  */
6834 static int __init ipw2100_init(void)
6835 {
6836         int ret;
6837
6838         printk(KERN_INFO DRV_NAME ": %s, %s\n", DRV_DESCRIPTION, DRV_VERSION);
6839         printk(KERN_INFO DRV_NAME ": %s\n", DRV_COPYRIGHT);
6840
6841         ret = pci_module_init(&ipw2100_pci_driver);
6842
6843 #ifdef CONFIG_IPW_DEBUG
6844         ipw2100_debug_level = debug;
6845         driver_create_file(&ipw2100_pci_driver.driver,
6846                            &driver_attr_debug_level);
6847 #endif
6848
6849         return ret;
6850 }
6851
6852 /**
6853  * Cleanup ipw2100 driver registration
6854  */
6855 static void __exit ipw2100_exit(void)
6856 {
6857         /* FIXME: IPG: check that we have no instances of the devices open */
6858 #ifdef CONFIG_IPW_DEBUG
6859         driver_remove_file(&ipw2100_pci_driver.driver,
6860                            &driver_attr_debug_level);
6861 #endif
6862         pci_unregister_driver(&ipw2100_pci_driver);
6863 }
6864
6865 module_init(ipw2100_init);
6866 module_exit(ipw2100_exit);
6867
6868 #define WEXT_USECHANNELS 1
6869
6870 static const long ipw2100_frequencies[] = {
6871         2412, 2417, 2422, 2427,
6872         2432, 2437, 2442, 2447,
6873         2452, 2457, 2462, 2467,
6874         2472, 2484
6875 };
6876
6877 #define FREQ_COUNT (sizeof(ipw2100_frequencies) / \
6878                     sizeof(ipw2100_frequencies[0]))
6879
6880 static const long ipw2100_rates_11b[] = {
6881         1000000,
6882         2000000,
6883         5500000,
6884         11000000
6885 };
6886
6887 #define RATE_COUNT (sizeof(ipw2100_rates_11b) / sizeof(ipw2100_rates_11b[0]))
6888
6889 static int ipw2100_wx_get_name(struct net_device *dev,
6890                                struct iw_request_info *info,
6891                                union iwreq_data *wrqu, char *extra)
6892 {
6893         /*
6894          * This can be called at any time.  No action lock required
6895          */
6896
6897         struct ipw2100_priv *priv = ieee80211_priv(dev);
6898         if (!(priv->status & STATUS_ASSOCIATED))
6899                 strcpy(wrqu->name, "unassociated");
6900         else
6901                 snprintf(wrqu->name, IFNAMSIZ, "IEEE 802.11b");
6902
6903         IPW_DEBUG_WX("Name: %s\n", wrqu->name);
6904         return 0;
6905 }
6906
6907 static int ipw2100_wx_set_freq(struct net_device *dev,
6908                                struct iw_request_info *info,
6909                                union iwreq_data *wrqu, char *extra)
6910 {
6911         struct ipw2100_priv *priv = ieee80211_priv(dev);
6912         struct iw_freq *fwrq = &wrqu->freq;
6913         int err = 0;
6914
6915         if (priv->ieee->iw_mode == IW_MODE_INFRA)
6916                 return -EOPNOTSUPP;
6917
6918         down(&priv->action_sem);
6919         if (!(priv->status & STATUS_INITIALIZED)) {
6920                 err = -EIO;
6921                 goto done;
6922         }
6923
6924         /* if setting by freq convert to channel */
6925         if (fwrq->e == 1) {
6926                 if ((fwrq->m >= (int)2.412e8 && fwrq->m <= (int)2.487e8)) {
6927                         int f = fwrq->m / 100000;
6928                         int c = 0;
6929
6930                         while ((c < REG_MAX_CHANNEL) &&
6931                                (f != ipw2100_frequencies[c]))
6932                                 c++;
6933
6934                         /* hack to fall through */
6935                         fwrq->e = 0;
6936                         fwrq->m = c + 1;
6937                 }
6938         }
6939
6940         if (fwrq->e > 0 || fwrq->m > 1000) {
6941                 err = -EOPNOTSUPP;
6942                 goto done;
6943         } else {                /* Set the channel */
6944                 IPW_DEBUG_WX("SET Freq/Channel -> %d \n", fwrq->m);
6945                 err = ipw2100_set_channel(priv, fwrq->m, 0);
6946         }
6947
6948       done:
6949         up(&priv->action_sem);
6950         return err;
6951 }
6952
6953 static int ipw2100_wx_get_freq(struct net_device *dev,
6954                                struct iw_request_info *info,
6955                                union iwreq_data *wrqu, char *extra)
6956 {
6957         /*
6958          * This can be called at any time.  No action lock required
6959          */
6960
6961         struct ipw2100_priv *priv = ieee80211_priv(dev);
6962
6963         wrqu->freq.e = 0;
6964
6965         /* If we are associated, trying to associate, or have a statically
6966          * configured CHANNEL then return that; otherwise return ANY */
6967         if (priv->config & CFG_STATIC_CHANNEL ||
6968             priv->status & STATUS_ASSOCIATED)
6969                 wrqu->freq.m = priv->channel;
6970         else
6971                 wrqu->freq.m = 0;
6972
6973         IPW_DEBUG_WX("GET Freq/Channel -> %d \n", priv->channel);
6974         return 0;
6975
6976 }
6977
6978 static int ipw2100_wx_set_mode(struct net_device *dev,
6979                                struct iw_request_info *info,
6980                                union iwreq_data *wrqu, char *extra)
6981 {
6982         struct ipw2100_priv *priv = ieee80211_priv(dev);
6983         int err = 0;
6984
6985         IPW_DEBUG_WX("SET Mode -> %d \n", wrqu->mode);
6986
6987         if (wrqu->mode == priv->ieee->iw_mode)
6988                 return 0;
6989
6990         down(&priv->action_sem);
6991         if (!(priv->status & STATUS_INITIALIZED)) {
6992                 err = -EIO;
6993                 goto done;
6994         }
6995
6996         switch (wrqu->mode) {
6997 #ifdef CONFIG_IPW2100_MONITOR
6998         case IW_MODE_MONITOR:
6999                 err = ipw2100_switch_mode(priv, IW_MODE_MONITOR);
7000                 break;
7001 #endif                          /* CONFIG_IPW2100_MONITOR */
7002         case IW_MODE_ADHOC:
7003                 err = ipw2100_switch_mode(priv, IW_MODE_ADHOC);
7004                 break;
7005         case IW_MODE_INFRA:
7006         case IW_MODE_AUTO:
7007         default:
7008                 err = ipw2100_switch_mode(priv, IW_MODE_INFRA);
7009                 break;
7010         }
7011
7012       done:
7013         up(&priv->action_sem);
7014         return err;
7015 }
7016
7017 static int ipw2100_wx_get_mode(struct net_device *dev,
7018                                struct iw_request_info *info,
7019                                union iwreq_data *wrqu, char *extra)
7020 {
7021         /*
7022          * This can be called at any time.  No action lock required
7023          */
7024
7025         struct ipw2100_priv *priv = ieee80211_priv(dev);
7026
7027         wrqu->mode = priv->ieee->iw_mode;
7028         IPW_DEBUG_WX("GET Mode -> %d\n", wrqu->mode);
7029
7030         return 0;
7031 }
7032
7033 #define POWER_MODES 5
7034
7035 /* Values are in microsecond */
7036 static const s32 timeout_duration[POWER_MODES] = {
7037         350000,
7038         250000,
7039         75000,
7040         37000,
7041         25000,
7042 };
7043
7044 static const s32 period_duration[POWER_MODES] = {
7045         400000,
7046         700000,
7047         1000000,
7048         1000000,
7049         1000000
7050 };
7051
7052 static int ipw2100_wx_get_range(struct net_device *dev,
7053                                 struct iw_request_info *info,
7054                                 union iwreq_data *wrqu, char *extra)
7055 {
7056         /*
7057          * This can be called at any time.  No action lock required
7058          */
7059
7060         struct ipw2100_priv *priv = ieee80211_priv(dev);
7061         struct iw_range *range = (struct iw_range *)extra;
7062         u16 val;
7063         int i, level;
7064
7065         wrqu->data.length = sizeof(*range);
7066         memset(range, 0, sizeof(*range));
7067
7068         /* Let's try to keep this struct in the same order as in
7069          * linux/include/wireless.h
7070          */
7071
7072         /* TODO: See what values we can set, and remove the ones we can't
7073          * set, or fill them with some default data.
7074          */
7075
7076         /* ~5 Mb/s real (802.11b) */
7077         range->throughput = 5 * 1000 * 1000;
7078
7079 //      range->sensitivity;     /* signal level threshold range */
7080
7081         range->max_qual.qual = 100;
7082         /* TODO: Find real max RSSI and stick here */
7083         range->max_qual.level = 0;
7084         range->max_qual.noise = 0;
7085         range->max_qual.updated = 7;    /* Updated all three */
7086
7087         range->avg_qual.qual = 70;      /* > 8% missed beacons is 'bad' */
7088         /* TODO: Find real 'good' to 'bad' threshol value for RSSI */
7089         range->avg_qual.level = 20 + IPW2100_RSSI_TO_DBM;
7090         range->avg_qual.noise = 0;
7091         range->avg_qual.updated = 7;    /* Updated all three */
7092
7093         range->num_bitrates = RATE_COUNT;
7094
7095         for (i = 0; i < RATE_COUNT && i < IW_MAX_BITRATES; i++) {
7096                 range->bitrate[i] = ipw2100_rates_11b[i];
7097         }
7098
7099         range->min_rts = MIN_RTS_THRESHOLD;
7100         range->max_rts = MAX_RTS_THRESHOLD;
7101         range->min_frag = MIN_FRAG_THRESHOLD;
7102         range->max_frag = MAX_FRAG_THRESHOLD;
7103
7104         range->min_pmp = period_duration[0];    /* Minimal PM period */
7105         range->max_pmp = period_duration[POWER_MODES - 1];      /* Maximal PM period */
7106         range->min_pmt = timeout_duration[POWER_MODES - 1];     /* Minimal PM timeout */
7107         range->max_pmt = timeout_duration[0];   /* Maximal PM timeout */
7108
7109         /* How to decode max/min PM period */
7110         range->pmp_flags = IW_POWER_PERIOD;
7111         /* How to decode max/min PM period */
7112         range->pmt_flags = IW_POWER_TIMEOUT;
7113         /* What PM options are supported */
7114         range->pm_capa = IW_POWER_TIMEOUT | IW_POWER_PERIOD;
7115
7116         range->encoding_size[0] = 5;
7117         range->encoding_size[1] = 13;   /* Different token sizes */
7118         range->num_encoding_sizes = 2;  /* Number of entry in the list */
7119         range->max_encoding_tokens = WEP_KEYS;  /* Max number of tokens */
7120 //      range->encoding_login_index;            /* token index for login token */
7121
7122         if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
7123                 range->txpower_capa = IW_TXPOW_DBM;
7124                 range->num_txpower = IW_MAX_TXPOWER;
7125                 for (i = 0, level = (IPW_TX_POWER_MAX_DBM * 16);
7126                      i < IW_MAX_TXPOWER;
7127                      i++, level -=
7128                      ((IPW_TX_POWER_MAX_DBM -
7129                        IPW_TX_POWER_MIN_DBM) * 16) / (IW_MAX_TXPOWER - 1))
7130                         range->txpower[i] = level / 16;
7131         } else {
7132                 range->txpower_capa = 0;
7133                 range->num_txpower = 0;
7134         }
7135
7136         /* Set the Wireless Extension versions */
7137         range->we_version_compiled = WIRELESS_EXT;
7138         range->we_version_source = 16;
7139
7140 //      range->retry_capa;      /* What retry options are supported */
7141 //      range->retry_flags;     /* How to decode max/min retry limit */
7142 //      range->r_time_flags;    /* How to decode max/min retry life */
7143 //      range->min_retry;       /* Minimal number of retries */
7144 //      range->max_retry;       /* Maximal number of retries */
7145 //      range->min_r_time;      /* Minimal retry lifetime */
7146 //      range->max_r_time;      /* Maximal retry lifetime */
7147
7148         range->num_channels = FREQ_COUNT;
7149
7150         val = 0;
7151         for (i = 0; i < FREQ_COUNT; i++) {
7152                 // TODO: Include only legal frequencies for some countries
7153 //              if (local->channel_mask & (1 << i)) {
7154                 range->freq[val].i = i + 1;
7155                 range->freq[val].m = ipw2100_frequencies[i] * 100000;
7156                 range->freq[val].e = 1;
7157                 val++;
7158 //              }
7159                 if (val == IW_MAX_FREQUENCIES)
7160                         break;
7161         }
7162         range->num_frequency = val;
7163
7164         IPW_DEBUG_WX("GET Range\n");
7165
7166         return 0;
7167 }
7168
7169 static int ipw2100_wx_set_wap(struct net_device *dev,
7170                               struct iw_request_info *info,
7171                               union iwreq_data *wrqu, char *extra)
7172 {
7173         struct ipw2100_priv *priv = ieee80211_priv(dev);
7174         int err = 0;
7175
7176         static const unsigned char any[] = {
7177                 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
7178         };
7179         static const unsigned char off[] = {
7180                 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
7181         };
7182
7183         // sanity checks
7184         if (wrqu->ap_addr.sa_family != ARPHRD_ETHER)
7185                 return -EINVAL;
7186
7187         down(&priv->action_sem);
7188         if (!(priv->status & STATUS_INITIALIZED)) {
7189                 err = -EIO;
7190                 goto done;
7191         }
7192
7193         if (!memcmp(any, wrqu->ap_addr.sa_data, ETH_ALEN) ||
7194             !memcmp(off, wrqu->ap_addr.sa_data, ETH_ALEN)) {
7195                 /* we disable mandatory BSSID association */
7196                 IPW_DEBUG_WX("exit - disable mandatory BSSID\n");
7197                 priv->config &= ~CFG_STATIC_BSSID;
7198                 err = ipw2100_set_mandatory_bssid(priv, NULL, 0);
7199                 goto done;
7200         }
7201
7202         priv->config |= CFG_STATIC_BSSID;
7203         memcpy(priv->mandatory_bssid_mac, wrqu->ap_addr.sa_data, ETH_ALEN);
7204
7205         err = ipw2100_set_mandatory_bssid(priv, wrqu->ap_addr.sa_data, 0);
7206
7207         IPW_DEBUG_WX("SET BSSID -> %02X:%02X:%02X:%02X:%02X:%02X\n",
7208                      wrqu->ap_addr.sa_data[0] & 0xff,
7209                      wrqu->ap_addr.sa_data[1] & 0xff,
7210                      wrqu->ap_addr.sa_data[2] & 0xff,
7211                      wrqu->ap_addr.sa_data[3] & 0xff,
7212                      wrqu->ap_addr.sa_data[4] & 0xff,
7213                      wrqu->ap_addr.sa_data[5] & 0xff);
7214
7215       done:
7216         up(&priv->action_sem);
7217         return err;
7218 }
7219
7220 static int ipw2100_wx_get_wap(struct net_device *dev,
7221                               struct iw_request_info *info,
7222                               union iwreq_data *wrqu, char *extra)
7223 {
7224         /*
7225          * This can be called at any time.  No action lock required
7226          */
7227
7228         struct ipw2100_priv *priv = ieee80211_priv(dev);
7229
7230         /* If we are associated, trying to associate, or have a statically
7231          * configured BSSID then return that; otherwise return ANY */
7232         if (priv->config & CFG_STATIC_BSSID || priv->status & STATUS_ASSOCIATED) {
7233                 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
7234                 memcpy(wrqu->ap_addr.sa_data, priv->bssid, ETH_ALEN);
7235         } else
7236                 memset(wrqu->ap_addr.sa_data, 0, ETH_ALEN);
7237
7238         IPW_DEBUG_WX("Getting WAP BSSID: " MAC_FMT "\n",
7239                      MAC_ARG(wrqu->ap_addr.sa_data));
7240         return 0;
7241 }
7242
7243 static int ipw2100_wx_set_essid(struct net_device *dev,
7244                                 struct iw_request_info *info,
7245                                 union iwreq_data *wrqu, char *extra)
7246 {
7247         struct ipw2100_priv *priv = ieee80211_priv(dev);
7248         char *essid = "";       /* ANY */
7249         int length = 0;
7250         int err = 0;
7251
7252         down(&priv->action_sem);
7253         if (!(priv->status & STATUS_INITIALIZED)) {
7254                 err = -EIO;
7255                 goto done;
7256         }
7257
7258         if (wrqu->essid.flags && wrqu->essid.length) {
7259                 length = wrqu->essid.length - 1;
7260                 essid = extra;
7261         }
7262
7263         if (length == 0) {
7264                 IPW_DEBUG_WX("Setting ESSID to ANY\n");
7265                 priv->config &= ~CFG_STATIC_ESSID;
7266                 err = ipw2100_set_essid(priv, NULL, 0, 0);
7267                 goto done;
7268         }
7269
7270         length = min(length, IW_ESSID_MAX_SIZE);
7271
7272         priv->config |= CFG_STATIC_ESSID;
7273
7274         if (priv->essid_len == length && !memcmp(priv->essid, extra, length)) {
7275                 IPW_DEBUG_WX("ESSID set to current ESSID.\n");
7276                 err = 0;
7277                 goto done;
7278         }
7279
7280         IPW_DEBUG_WX("Setting ESSID: '%s' (%d)\n", escape_essid(essid, length),
7281                      length);
7282
7283         priv->essid_len = length;
7284         memcpy(priv->essid, essid, priv->essid_len);
7285
7286         err = ipw2100_set_essid(priv, essid, length, 0);
7287
7288       done:
7289         up(&priv->action_sem);
7290         return err;
7291 }
7292
7293 static int ipw2100_wx_get_essid(struct net_device *dev,
7294                                 struct iw_request_info *info,
7295                                 union iwreq_data *wrqu, char *extra)
7296 {
7297         /*
7298          * This can be called at any time.  No action lock required
7299          */
7300
7301         struct ipw2100_priv *priv = ieee80211_priv(dev);
7302
7303         /* If we are associated, trying to associate, or have a statically
7304          * configured ESSID then return that; otherwise return ANY */
7305         if (priv->config & CFG_STATIC_ESSID || priv->status & STATUS_ASSOCIATED) {
7306                 IPW_DEBUG_WX("Getting essid: '%s'\n",
7307                              escape_essid(priv->essid, priv->essid_len));
7308                 memcpy(extra, priv->essid, priv->essid_len);
7309                 wrqu->essid.length = priv->essid_len;
7310                 wrqu->essid.flags = 1;  /* active */
7311         } else {
7312                 IPW_DEBUG_WX("Getting essid: ANY\n");
7313                 wrqu->essid.length = 0;
7314                 wrqu->essid.flags = 0;  /* active */
7315         }
7316
7317         return 0;
7318 }
7319
7320 static int ipw2100_wx_set_nick(struct net_device *dev,
7321                                struct iw_request_info *info,
7322                                union iwreq_data *wrqu, char *extra)
7323 {
7324         /*
7325          * This can be called at any time.  No action lock required
7326          */
7327
7328         struct ipw2100_priv *priv = ieee80211_priv(dev);
7329
7330         if (wrqu->data.length > IW_ESSID_MAX_SIZE)
7331                 return -E2BIG;
7332
7333         wrqu->data.length = min((size_t) wrqu->data.length, sizeof(priv->nick));
7334         memset(priv->nick, 0, sizeof(priv->nick));
7335         memcpy(priv->nick, extra, wrqu->data.length);
7336
7337         IPW_DEBUG_WX("SET Nickname -> %s \n", priv->nick);
7338
7339         return 0;
7340 }
7341
7342 static int ipw2100_wx_get_nick(struct net_device *dev,
7343                                struct iw_request_info *info,
7344                                union iwreq_data *wrqu, char *extra)
7345 {
7346         /*
7347          * This can be called at any time.  No action lock required
7348          */
7349
7350         struct ipw2100_priv *priv = ieee80211_priv(dev);
7351
7352         wrqu->data.length = strlen(priv->nick) + 1;
7353         memcpy(extra, priv->nick, wrqu->data.length);
7354         wrqu->data.flags = 1;   /* active */
7355
7356         IPW_DEBUG_WX("GET Nickname -> %s \n", extra);
7357
7358         return 0;
7359 }
7360
7361 static int ipw2100_wx_set_rate(struct net_device *dev,
7362                                struct iw_request_info *info,
7363                                union iwreq_data *wrqu, char *extra)
7364 {
7365         struct ipw2100_priv *priv = ieee80211_priv(dev);
7366         u32 target_rate = wrqu->bitrate.value;
7367         u32 rate;
7368         int err = 0;
7369
7370         down(&priv->action_sem);
7371         if (!(priv->status & STATUS_INITIALIZED)) {
7372                 err = -EIO;
7373                 goto done;
7374         }
7375
7376         rate = 0;
7377
7378         if (target_rate == 1000000 ||
7379             (!wrqu->bitrate.fixed && target_rate > 1000000))
7380                 rate |= TX_RATE_1_MBIT;
7381         if (target_rate == 2000000 ||
7382             (!wrqu->bitrate.fixed && target_rate > 2000000))
7383                 rate |= TX_RATE_2_MBIT;
7384         if (target_rate == 5500000 ||
7385             (!wrqu->bitrate.fixed && target_rate > 5500000))
7386                 rate |= TX_RATE_5_5_MBIT;
7387         if (target_rate == 11000000 ||
7388             (!wrqu->bitrate.fixed && target_rate > 11000000))
7389                 rate |= TX_RATE_11_MBIT;
7390         if (rate == 0)
7391                 rate = DEFAULT_TX_RATES;
7392
7393         err = ipw2100_set_tx_rates(priv, rate, 0);
7394
7395         IPW_DEBUG_WX("SET Rate -> %04X \n", rate);
7396       done:
7397         up(&priv->action_sem);
7398         return err;
7399 }
7400
7401 static int ipw2100_wx_get_rate(struct net_device *dev,
7402                                struct iw_request_info *info,
7403                                union iwreq_data *wrqu, char *extra)
7404 {
7405         struct ipw2100_priv *priv = ieee80211_priv(dev);
7406         int val;
7407         int len = sizeof(val);
7408         int err = 0;
7409
7410         if (!(priv->status & STATUS_ENABLED) ||
7411             priv->status & STATUS_RF_KILL_MASK ||
7412             !(priv->status & STATUS_ASSOCIATED)) {
7413                 wrqu->bitrate.value = 0;
7414                 return 0;
7415         }
7416
7417         down(&priv->action_sem);
7418         if (!(priv->status & STATUS_INITIALIZED)) {
7419                 err = -EIO;
7420                 goto done;
7421         }
7422
7423         err = ipw2100_get_ordinal(priv, IPW_ORD_CURRENT_TX_RATE, &val, &len);
7424         if (err) {
7425                 IPW_DEBUG_WX("failed querying ordinals.\n");
7426                 return err;
7427         }
7428
7429         switch (val & TX_RATE_MASK) {
7430         case TX_RATE_1_MBIT:
7431                 wrqu->bitrate.value = 1000000;
7432                 break;
7433         case TX_RATE_2_MBIT:
7434                 wrqu->bitrate.value = 2000000;
7435                 break;
7436         case TX_RATE_5_5_MBIT:
7437                 wrqu->bitrate.value = 5500000;
7438                 break;
7439         case TX_RATE_11_MBIT:
7440                 wrqu->bitrate.value = 11000000;
7441                 break;
7442         default:
7443                 wrqu->bitrate.value = 0;
7444         }
7445
7446         IPW_DEBUG_WX("GET Rate -> %d \n", wrqu->bitrate.value);
7447
7448       done:
7449         up(&priv->action_sem);
7450         return err;
7451 }
7452
7453 static int ipw2100_wx_set_rts(struct net_device *dev,
7454                               struct iw_request_info *info,
7455                               union iwreq_data *wrqu, char *extra)
7456 {
7457         struct ipw2100_priv *priv = ieee80211_priv(dev);
7458         int value, err;
7459
7460         /* Auto RTS not yet supported */
7461         if (wrqu->rts.fixed == 0)
7462                 return -EINVAL;
7463
7464         down(&priv->action_sem);
7465         if (!(priv->status & STATUS_INITIALIZED)) {
7466                 err = -EIO;
7467                 goto done;
7468         }
7469
7470         if (wrqu->rts.disabled)
7471                 value = priv->rts_threshold | RTS_DISABLED;
7472         else {
7473                 if (wrqu->rts.value < 1 || wrqu->rts.value > 2304) {
7474                         err = -EINVAL;
7475                         goto done;
7476                 }
7477                 value = wrqu->rts.value;
7478         }
7479
7480         err = ipw2100_set_rts_threshold(priv, value);
7481
7482         IPW_DEBUG_WX("SET RTS Threshold -> 0x%08X \n", value);
7483       done:
7484         up(&priv->action_sem);
7485         return err;
7486 }
7487
7488 static int ipw2100_wx_get_rts(struct net_device *dev,
7489                               struct iw_request_info *info,
7490                               union iwreq_data *wrqu, char *extra)
7491 {
7492         /*
7493          * This can be called at any time.  No action lock required
7494          */
7495
7496         struct ipw2100_priv *priv = ieee80211_priv(dev);
7497
7498         wrqu->rts.value = priv->rts_threshold & ~RTS_DISABLED;
7499         wrqu->rts.fixed = 1;    /* no auto select */
7500
7501         /* If RTS is set to the default value, then it is disabled */
7502         wrqu->rts.disabled = (priv->rts_threshold & RTS_DISABLED) ? 1 : 0;
7503
7504         IPW_DEBUG_WX("GET RTS Threshold -> 0x%08X \n", wrqu->rts.value);
7505
7506         return 0;
7507 }
7508
7509 static int ipw2100_wx_set_txpow(struct net_device *dev,
7510                                 struct iw_request_info *info,
7511                                 union iwreq_data *wrqu, char *extra)
7512 {
7513         struct ipw2100_priv *priv = ieee80211_priv(dev);
7514         int err = 0, value;
7515
7516         if (priv->ieee->iw_mode != IW_MODE_ADHOC)
7517                 return -EINVAL;
7518
7519         if (wrqu->txpower.disabled == 1 || wrqu->txpower.fixed == 0)
7520                 value = IPW_TX_POWER_DEFAULT;
7521         else {
7522                 if (wrqu->txpower.value < IPW_TX_POWER_MIN_DBM ||
7523                     wrqu->txpower.value > IPW_TX_POWER_MAX_DBM)
7524                         return -EINVAL;
7525
7526                 value = (wrqu->txpower.value - IPW_TX_POWER_MIN_DBM) * 16 /
7527                     (IPW_TX_POWER_MAX_DBM - IPW_TX_POWER_MIN_DBM);
7528         }
7529
7530         down(&priv->action_sem);
7531         if (!(priv->status & STATUS_INITIALIZED)) {
7532                 err = -EIO;
7533                 goto done;
7534         }
7535
7536         err = ipw2100_set_tx_power(priv, value);
7537
7538         IPW_DEBUG_WX("SET TX Power -> %d \n", value);
7539
7540       done:
7541         up(&priv->action_sem);
7542         return err;
7543 }
7544
7545 static int ipw2100_wx_get_txpow(struct net_device *dev,
7546                                 struct iw_request_info *info,
7547                                 union iwreq_data *wrqu, char *extra)
7548 {
7549         /*
7550          * This can be called at any time.  No action lock required
7551          */
7552
7553         struct ipw2100_priv *priv = ieee80211_priv(dev);
7554
7555         if (priv->ieee->iw_mode != IW_MODE_ADHOC) {
7556                 wrqu->power.disabled = 1;
7557                 return 0;
7558         }
7559
7560         if (priv->tx_power == IPW_TX_POWER_DEFAULT) {
7561                 wrqu->power.fixed = 0;
7562                 wrqu->power.value = IPW_TX_POWER_MAX_DBM;
7563                 wrqu->power.disabled = 1;
7564         } else {
7565                 wrqu->power.disabled = 0;
7566                 wrqu->power.fixed = 1;
7567                 wrqu->power.value =
7568                     (priv->tx_power *
7569                      (IPW_TX_POWER_MAX_DBM - IPW_TX_POWER_MIN_DBM)) /
7570                     (IPW_TX_POWER_MAX - IPW_TX_POWER_MIN) +
7571                     IPW_TX_POWER_MIN_DBM;
7572         }
7573
7574         wrqu->power.flags = IW_TXPOW_DBM;
7575
7576         IPW_DEBUG_WX("GET TX Power -> %d \n", wrqu->power.value);
7577
7578         return 0;
7579 }
7580
7581 static int ipw2100_wx_set_frag(struct net_device *dev,
7582                                struct iw_request_info *info,
7583                                union iwreq_data *wrqu, char *extra)
7584 {
7585         /*
7586          * This can be called at any time.  No action lock required
7587          */
7588
7589         struct ipw2100_priv *priv = ieee80211_priv(dev);
7590
7591         if (!wrqu->frag.fixed)
7592                 return -EINVAL;
7593
7594         if (wrqu->frag.disabled) {
7595                 priv->frag_threshold |= FRAG_DISABLED;
7596                 priv->ieee->fts = DEFAULT_FTS;
7597         } else {
7598                 if (wrqu->frag.value < MIN_FRAG_THRESHOLD ||
7599                     wrqu->frag.value > MAX_FRAG_THRESHOLD)
7600                         return -EINVAL;
7601
7602                 priv->ieee->fts = wrqu->frag.value & ~0x1;
7603                 priv->frag_threshold = priv->ieee->fts;
7604         }
7605
7606         IPW_DEBUG_WX("SET Frag Threshold -> %d \n", priv->ieee->fts);
7607
7608         return 0;
7609 }
7610
7611 static int ipw2100_wx_get_frag(struct net_device *dev,
7612                                struct iw_request_info *info,
7613                                union iwreq_data *wrqu, char *extra)
7614 {
7615         /*
7616          * This can be called at any time.  No action lock required
7617          */
7618
7619         struct ipw2100_priv *priv = ieee80211_priv(dev);
7620         wrqu->frag.value = priv->frag_threshold & ~FRAG_DISABLED;
7621         wrqu->frag.fixed = 0;   /* no auto select */
7622         wrqu->frag.disabled = (priv->frag_threshold & FRAG_DISABLED) ? 1 : 0;
7623
7624         IPW_DEBUG_WX("GET Frag Threshold -> %d \n", wrqu->frag.value);
7625
7626         return 0;
7627 }
7628
7629 static int ipw2100_wx_set_retry(struct net_device *dev,
7630                                 struct iw_request_info *info,
7631                                 union iwreq_data *wrqu, char *extra)
7632 {
7633         struct ipw2100_priv *priv = ieee80211_priv(dev);
7634         int err = 0;
7635
7636         if (wrqu->retry.flags & IW_RETRY_LIFETIME || wrqu->retry.disabled)
7637                 return -EINVAL;
7638
7639         if (!(wrqu->retry.flags & IW_RETRY_LIMIT))
7640                 return 0;
7641
7642         down(&priv->action_sem);
7643         if (!(priv->status & STATUS_INITIALIZED)) {
7644                 err = -EIO;
7645                 goto done;
7646         }
7647
7648         if (wrqu->retry.flags & IW_RETRY_MIN) {
7649                 err = ipw2100_set_short_retry(priv, wrqu->retry.value);
7650                 IPW_DEBUG_WX("SET Short Retry Limit -> %d \n",
7651                              wrqu->retry.value);
7652                 goto done;
7653         }
7654
7655         if (wrqu->retry.flags & IW_RETRY_MAX) {
7656                 err = ipw2100_set_long_retry(priv, wrqu->retry.value);
7657                 IPW_DEBUG_WX("SET Long Retry Limit -> %d \n",
7658                              wrqu->retry.value);
7659                 goto done;
7660         }
7661
7662         err = ipw2100_set_short_retry(priv, wrqu->retry.value);
7663         if (!err)
7664                 err = ipw2100_set_long_retry(priv, wrqu->retry.value);
7665
7666         IPW_DEBUG_WX("SET Both Retry Limits -> %d \n", wrqu->retry.value);
7667
7668       done:
7669         up(&priv->action_sem);
7670         return err;
7671 }
7672
7673 static int ipw2100_wx_get_retry(struct net_device *dev,
7674                                 struct iw_request_info *info,
7675                                 union iwreq_data *wrqu, char *extra)
7676 {
7677         /*
7678          * This can be called at any time.  No action lock required
7679          */
7680
7681         struct ipw2100_priv *priv = ieee80211_priv(dev);
7682
7683         wrqu->retry.disabled = 0;       /* can't be disabled */
7684
7685         if ((wrqu->retry.flags & IW_RETRY_TYPE) == IW_RETRY_LIFETIME)
7686                 return -EINVAL;
7687
7688         if (wrqu->retry.flags & IW_RETRY_MAX) {
7689                 wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
7690                 wrqu->retry.value = priv->long_retry_limit;
7691         } else {
7692                 wrqu->retry.flags =
7693                     (priv->short_retry_limit !=
7694                      priv->long_retry_limit) ?
7695                     IW_RETRY_LIMIT | IW_RETRY_MIN : IW_RETRY_LIMIT;
7696
7697                 wrqu->retry.value = priv->short_retry_limit;
7698         }
7699
7700         IPW_DEBUG_WX("GET Retry -> %d \n", wrqu->retry.value);
7701
7702         return 0;
7703 }
7704
7705 static int ipw2100_wx_set_scan(struct net_device *dev,
7706                                struct iw_request_info *info,
7707                                union iwreq_data *wrqu, char *extra)
7708 {
7709         struct ipw2100_priv *priv = ieee80211_priv(dev);
7710         int err = 0;
7711
7712         down(&priv->action_sem);
7713         if (!(priv->status & STATUS_INITIALIZED)) {
7714                 err = -EIO;
7715                 goto done;
7716         }
7717
7718         IPW_DEBUG_WX("Initiating scan...\n");
7719         if (ipw2100_set_scan_options(priv) || ipw2100_start_scan(priv)) {
7720                 IPW_DEBUG_WX("Start scan failed.\n");
7721
7722                 /* TODO: Mark a scan as pending so when hardware initialized
7723                  *       a scan starts */
7724         }
7725
7726       done:
7727         up(&priv->action_sem);
7728         return err;
7729 }
7730
7731 static int ipw2100_wx_get_scan(struct net_device *dev,
7732                                struct iw_request_info *info,
7733                                union iwreq_data *wrqu, char *extra)
7734 {
7735         /*
7736          * This can be called at any time.  No action lock required
7737          */
7738
7739         struct ipw2100_priv *priv = ieee80211_priv(dev);
7740         return ieee80211_wx_get_scan(priv->ieee, info, wrqu, extra);
7741 }
7742
7743 /*
7744  * Implementation based on code in hostap-driver v0.1.3 hostap_ioctl.c
7745  */
7746 static int ipw2100_wx_set_encode(struct net_device *dev,
7747                                  struct iw_request_info *info,
7748                                  union iwreq_data *wrqu, char *key)
7749 {
7750         /*
7751          * No check of STATUS_INITIALIZED required
7752          */
7753
7754         struct ipw2100_priv *priv = ieee80211_priv(dev);
7755         return ieee80211_wx_set_encode(priv->ieee, info, wrqu, key);
7756 }
7757
7758 static int ipw2100_wx_get_encode(struct net_device *dev,
7759                                  struct iw_request_info *info,
7760                                  union iwreq_data *wrqu, char *key)
7761 {
7762         /*
7763          * This can be called at any time.  No action lock required
7764          */
7765
7766         struct ipw2100_priv *priv = ieee80211_priv(dev);
7767         return ieee80211_wx_get_encode(priv->ieee, info, wrqu, key);
7768 }
7769
7770 static int ipw2100_wx_set_power(struct net_device *dev,
7771                                 struct iw_request_info *info,
7772                                 union iwreq_data *wrqu, char *extra)
7773 {
7774         struct ipw2100_priv *priv = ieee80211_priv(dev);
7775         int err = 0;
7776
7777         down(&priv->action_sem);
7778         if (!(priv->status & STATUS_INITIALIZED)) {
7779                 err = -EIO;
7780                 goto done;
7781         }
7782
7783         if (wrqu->power.disabled) {
7784                 priv->power_mode = IPW_POWER_LEVEL(priv->power_mode);
7785                 err = ipw2100_set_power_mode(priv, IPW_POWER_MODE_CAM);
7786                 IPW_DEBUG_WX("SET Power Management Mode -> off\n");
7787                 goto done;
7788         }
7789
7790         switch (wrqu->power.flags & IW_POWER_MODE) {
7791         case IW_POWER_ON:       /* If not specified */
7792         case IW_POWER_MODE:     /* If set all mask */
7793         case IW_POWER_ALL_R:    /* If explicitely state all */
7794                 break;
7795         default:                /* Otherwise we don't support it */
7796                 IPW_DEBUG_WX("SET PM Mode: %X not supported.\n",
7797                              wrqu->power.flags);
7798                 err = -EOPNOTSUPP;
7799                 goto done;
7800         }
7801
7802         /* If the user hasn't specified a power management mode yet, default
7803          * to BATTERY */
7804         priv->power_mode = IPW_POWER_ENABLED | priv->power_mode;
7805         err = ipw2100_set_power_mode(priv, IPW_POWER_LEVEL(priv->power_mode));
7806
7807         IPW_DEBUG_WX("SET Power Management Mode -> 0x%02X\n", priv->power_mode);
7808
7809       done:
7810         up(&priv->action_sem);
7811         return err;
7812
7813 }
7814
7815 static int ipw2100_wx_get_power(struct net_device *dev,
7816                                 struct iw_request_info *info,
7817                                 union iwreq_data *wrqu, char *extra)
7818 {
7819         /*
7820          * This can be called at any time.  No action lock required
7821          */
7822
7823         struct ipw2100_priv *priv = ieee80211_priv(dev);
7824
7825         if (!(priv->power_mode & IPW_POWER_ENABLED))
7826                 wrqu->power.disabled = 1;
7827         else {
7828                 wrqu->power.disabled = 0;
7829                 wrqu->power.flags = 0;
7830         }
7831
7832         IPW_DEBUG_WX("GET Power Management Mode -> %02X\n", priv->power_mode);
7833
7834         return 0;
7835 }
7836
7837 #if WIRELESS_EXT > 17
7838 /*
7839  * WE-18 WPA support
7840  */
7841
7842 /* SIOCSIWGENIE */
7843 static int ipw2100_wx_set_genie(struct net_device *dev,
7844                                 struct iw_request_info *info,
7845                                 union iwreq_data *wrqu, char *extra)
7846 {
7847
7848         struct ipw2100_priv *priv = ieee80211_priv(dev);
7849         struct ieee80211_device *ieee = priv->ieee;
7850         u8 *buf;
7851
7852         if (!ieee->wpa_enabled)
7853                 return -EOPNOTSUPP;
7854
7855         if (wrqu->data.length > MAX_WPA_IE_LEN ||
7856             (wrqu->data.length && extra == NULL))
7857                 return -EINVAL;
7858
7859         if (wrqu->data.length) {
7860                 buf = kmalloc(wrqu->data.length, GFP_KERNEL);
7861                 if (buf == NULL)
7862                         return -ENOMEM;
7863
7864                 memcpy(buf, extra, wrqu->data.length);
7865                 kfree(ieee->wpa_ie);
7866                 ieee->wpa_ie = buf;
7867                 ieee->wpa_ie_len = wrqu->data.length;
7868         } else {
7869                 kfree(ieee->wpa_ie);
7870                 ieee->wpa_ie = NULL;
7871                 ieee->wpa_ie_len = 0;
7872         }
7873
7874         ipw2100_wpa_assoc_frame(priv, ieee->wpa_ie, ieee->wpa_ie_len);
7875
7876         return 0;
7877 }
7878
7879 /* SIOCGIWGENIE */
7880 static int ipw2100_wx_get_genie(struct net_device *dev,
7881                                 struct iw_request_info *info,
7882                                 union iwreq_data *wrqu, char *extra)
7883 {
7884         struct ipw2100_priv *priv = ieee80211_priv(dev);
7885         struct ieee80211_device *ieee = priv->ieee;
7886
7887         if (ieee->wpa_ie_len == 0 || ieee->wpa_ie == NULL) {
7888                 wrqu->data.length = 0;
7889                 return 0;
7890         }
7891
7892         if (wrqu->data.length < ieee->wpa_ie_len)
7893                 return -E2BIG;
7894
7895         wrqu->data.length = ieee->wpa_ie_len;
7896         memcpy(extra, ieee->wpa_ie, ieee->wpa_ie_len);
7897
7898         return 0;
7899 }
7900
7901 /* SIOCSIWAUTH */
7902 static int ipw2100_wx_set_auth(struct net_device *dev,
7903                                struct iw_request_info *info,
7904                                union iwreq_data *wrqu, char *extra)
7905 {
7906         struct ipw2100_priv *priv = ieee80211_priv(dev);
7907         struct ieee80211_device *ieee = priv->ieee;
7908         struct iw_param *param = &wrqu->param;
7909         struct ieee80211_crypt_data *crypt;
7910         unsigned long flags;
7911         int ret = 0;
7912
7913         switch (param->flags & IW_AUTH_INDEX) {
7914         case IW_AUTH_WPA_VERSION:
7915         case IW_AUTH_CIPHER_PAIRWISE:
7916         case IW_AUTH_CIPHER_GROUP:
7917         case IW_AUTH_KEY_MGMT:
7918                 /*
7919                  * ipw2200 does not use these parameters
7920                  */
7921                 break;
7922
7923         case IW_AUTH_TKIP_COUNTERMEASURES:
7924                 crypt = priv->ieee->crypt[priv->ieee->tx_keyidx];
7925                 if (!crypt || !crypt->ops->set_flags || !crypt->ops->get_flags) {
7926                         IPW_DEBUG_WARNING("Can't set TKIP countermeasures: "
7927                                           "crypt not set!\n");
7928                         break;
7929                 }
7930
7931                 flags = crypt->ops->get_flags(crypt->priv);
7932
7933                 if (param->value)
7934                         flags |= IEEE80211_CRYPTO_TKIP_COUNTERMEASURES;
7935                 else
7936                         flags &= ~IEEE80211_CRYPTO_TKIP_COUNTERMEASURES;
7937
7938                 crypt->ops->set_flags(flags, crypt->priv);
7939
7940                 break;
7941
7942         case IW_AUTH_DROP_UNENCRYPTED:{
7943                         /* HACK:
7944                          *
7945                          * wpa_supplicant calls set_wpa_enabled when the driver
7946                          * is loaded and unloaded, regardless of if WPA is being
7947                          * used.  No other calls are made which can be used to
7948                          * determine if encryption will be used or not prior to
7949                          * association being expected.  If encryption is not being
7950                          * used, drop_unencrypted is set to false, else true -- we
7951                          * can use this to determine if the CAP_PRIVACY_ON bit should
7952                          * be set.
7953                          */
7954                         struct ieee80211_security sec = {
7955                                 .flags = SEC_ENABLED,
7956                                 .enabled = param->value,
7957                         };
7958                         priv->ieee->drop_unencrypted = param->value;
7959                         /* We only change SEC_LEVEL for open mode. Others
7960                          * are set by ipw_wpa_set_encryption.
7961                          */
7962                         if (!param->value) {
7963                                 sec.flags |= SEC_LEVEL;
7964                                 sec.level = SEC_LEVEL_0;
7965                         } else {
7966                                 sec.flags |= SEC_LEVEL;
7967                                 sec.level = SEC_LEVEL_1;
7968                         }
7969                         if (priv->ieee->set_security)
7970                                 priv->ieee->set_security(priv->ieee->dev, &sec);
7971                         break;
7972                 }
7973
7974         case IW_AUTH_80211_AUTH_ALG:
7975                 ret = ipw2100_wpa_set_auth_algs(priv, param->value);
7976                 break;
7977
7978         case IW_AUTH_WPA_ENABLED:
7979                 ret = ipw2100_wpa_enable(priv, param->value);
7980                 break;
7981
7982         case IW_AUTH_RX_UNENCRYPTED_EAPOL:
7983                 ieee->ieee802_1x = param->value;
7984                 break;
7985
7986                 //case IW_AUTH_ROAMING_CONTROL:
7987         case IW_AUTH_PRIVACY_INVOKED:
7988                 ieee->privacy_invoked = param->value;
7989                 break;
7990
7991         default:
7992                 return -EOPNOTSUPP;
7993         }
7994         return ret;
7995 }
7996
7997 /* SIOCGIWAUTH */
7998 static int ipw2100_wx_get_auth(struct net_device *dev,
7999                                struct iw_request_info *info,
8000                                union iwreq_data *wrqu, char *extra)
8001 {
8002         struct ipw2100_priv *priv = ieee80211_priv(dev);
8003         struct ieee80211_device *ieee = priv->ieee;
8004         struct ieee80211_crypt_data *crypt;
8005         struct iw_param *param = &wrqu->param;
8006         int ret = 0;
8007
8008         switch (param->flags & IW_AUTH_INDEX) {
8009         case IW_AUTH_WPA_VERSION:
8010         case IW_AUTH_CIPHER_PAIRWISE:
8011         case IW_AUTH_CIPHER_GROUP:
8012         case IW_AUTH_KEY_MGMT:
8013                 /*
8014                  * wpa_supplicant will control these internally
8015                  */
8016                 ret = -EOPNOTSUPP;
8017                 break;
8018
8019         case IW_AUTH_TKIP_COUNTERMEASURES:
8020                 crypt = priv->ieee->crypt[priv->ieee->tx_keyidx];
8021                 if (!crypt || !crypt->ops->get_flags) {
8022                         IPW_DEBUG_WARNING("Can't get TKIP countermeasures: "
8023                                           "crypt not set!\n");
8024                         break;
8025                 }
8026
8027                 param->value = (crypt->ops->get_flags(crypt->priv) &
8028                                 IEEE80211_CRYPTO_TKIP_COUNTERMEASURES) ? 1 : 0;
8029
8030                 break;
8031
8032         case IW_AUTH_DROP_UNENCRYPTED:
8033                 param->value = ieee->drop_unencrypted;
8034                 break;
8035
8036         case IW_AUTH_80211_AUTH_ALG:
8037                 param->value = priv->ieee->sec.auth_mode;
8038                 break;
8039
8040         case IW_AUTH_WPA_ENABLED:
8041                 param->value = ieee->wpa_enabled;
8042                 break;
8043
8044         case IW_AUTH_RX_UNENCRYPTED_EAPOL:
8045                 param->value = ieee->ieee802_1x;
8046                 break;
8047
8048         case IW_AUTH_ROAMING_CONTROL:
8049         case IW_AUTH_PRIVACY_INVOKED:
8050                 param->value = ieee->privacy_invoked;
8051                 break;
8052
8053         default:
8054                 return -EOPNOTSUPP;
8055         }
8056         return 0;
8057 }
8058
8059 /* SIOCSIWENCODEEXT */
8060 static int ipw2100_wx_set_encodeext(struct net_device *dev,
8061                                     struct iw_request_info *info,
8062                                     union iwreq_data *wrqu, char *extra)
8063 {
8064         struct ipw2100_priv *priv = ieee80211_priv(dev);
8065         return ieee80211_wx_set_encodeext(priv->ieee, info, wrqu, extra);
8066 }
8067
8068 /* SIOCGIWENCODEEXT */
8069 static int ipw2100_wx_get_encodeext(struct net_device *dev,
8070                                     struct iw_request_info *info,
8071                                     union iwreq_data *wrqu, char *extra)
8072 {
8073         struct ipw2100_priv *priv = ieee80211_priv(dev);
8074         return ieee80211_wx_get_encodeext(priv->ieee, info, wrqu, extra);
8075 }
8076
8077 /* SIOCSIWMLME */
8078 static int ipw2100_wx_set_mlme(struct net_device *dev,
8079                                struct iw_request_info *info,
8080                                union iwreq_data *wrqu, char *extra)
8081 {
8082         struct ipw2100_priv *priv = ieee80211_priv(dev);
8083         struct iw_mlme *mlme = (struct iw_mlme *)extra;
8084         u16 reason;
8085
8086         reason = cpu_to_le16(mlme->reason_code);
8087
8088         switch (mlme->cmd) {
8089         case IW_MLME_DEAUTH:
8090                 // silently ignore
8091                 break;
8092
8093         case IW_MLME_DISASSOC:
8094                 ipw2100_disassociate_bssid(priv);
8095                 break;
8096
8097         default:
8098                 return -EOPNOTSUPP;
8099         }
8100         return 0;
8101 }
8102 #endif                          /* WIRELESS_EXT > 17 */
8103
8104 /*
8105  *
8106  * IWPRIV handlers
8107  *
8108  */
8109 #ifdef CONFIG_IPW2100_MONITOR
8110 static int ipw2100_wx_set_promisc(struct net_device *dev,
8111                                   struct iw_request_info *info,
8112                                   union iwreq_data *wrqu, char *extra)
8113 {
8114         struct ipw2100_priv *priv = ieee80211_priv(dev);
8115         int *parms = (int *)extra;
8116         int enable = (parms[0] > 0);
8117         int err = 0;
8118
8119         down(&priv->action_sem);
8120         if (!(priv->status & STATUS_INITIALIZED)) {
8121                 err = -EIO;
8122                 goto done;
8123         }
8124
8125         if (enable) {
8126                 if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
8127                         err = ipw2100_set_channel(priv, parms[1], 0);
8128                         goto done;
8129                 }
8130                 priv->channel = parms[1];
8131                 err = ipw2100_switch_mode(priv, IW_MODE_MONITOR);
8132         } else {
8133                 if (priv->ieee->iw_mode == IW_MODE_MONITOR)
8134                         err = ipw2100_switch_mode(priv, priv->last_mode);
8135         }
8136       done:
8137         up(&priv->action_sem);
8138         return err;
8139 }
8140
8141 static int ipw2100_wx_reset(struct net_device *dev,
8142                             struct iw_request_info *info,
8143                             union iwreq_data *wrqu, char *extra)
8144 {
8145         struct ipw2100_priv *priv = ieee80211_priv(dev);
8146         if (priv->status & STATUS_INITIALIZED)
8147                 schedule_reset(priv);
8148         return 0;
8149 }
8150
8151 #endif
8152
8153 static int ipw2100_wx_set_powermode(struct net_device *dev,
8154                                     struct iw_request_info *info,
8155                                     union iwreq_data *wrqu, char *extra)
8156 {
8157         struct ipw2100_priv *priv = ieee80211_priv(dev);
8158         int err = 0, mode = *(int *)extra;
8159
8160         down(&priv->action_sem);
8161         if (!(priv->status & STATUS_INITIALIZED)) {
8162                 err = -EIO;
8163                 goto done;
8164         }
8165
8166         if ((mode < 1) || (mode > POWER_MODES))
8167                 mode = IPW_POWER_AUTO;
8168
8169         if (priv->power_mode != mode)
8170                 err = ipw2100_set_power_mode(priv, mode);
8171       done:
8172         up(&priv->action_sem);
8173         return err;
8174 }
8175
8176 #define MAX_POWER_STRING 80
8177 static int ipw2100_wx_get_powermode(struct net_device *dev,
8178                                     struct iw_request_info *info,
8179                                     union iwreq_data *wrqu, char *extra)
8180 {
8181         /*
8182          * This can be called at any time.  No action lock required
8183          */
8184
8185         struct ipw2100_priv *priv = ieee80211_priv(dev);
8186         int level = IPW_POWER_LEVEL(priv->power_mode);
8187         s32 timeout, period;
8188
8189         if (!(priv->power_mode & IPW_POWER_ENABLED)) {
8190                 snprintf(extra, MAX_POWER_STRING,
8191                          "Power save level: %d (Off)", level);
8192         } else {
8193                 switch (level) {
8194                 case IPW_POWER_MODE_CAM:
8195                         snprintf(extra, MAX_POWER_STRING,
8196                                  "Power save level: %d (None)", level);
8197                         break;
8198                 case IPW_POWER_AUTO:
8199                         snprintf(extra, MAX_POWER_STRING,
8200                                  "Power save level: %d (Auto)", 0);
8201                         break;
8202                 default:
8203                         timeout = timeout_duration[level - 1] / 1000;
8204                         period = period_duration[level - 1] / 1000;
8205                         snprintf(extra, MAX_POWER_STRING,
8206                                  "Power save level: %d "
8207                                  "(Timeout %dms, Period %dms)",
8208                                  level, timeout, period);
8209                 }
8210         }
8211
8212         wrqu->data.length = strlen(extra) + 1;
8213
8214         return 0;
8215 }
8216
8217 static int ipw2100_wx_set_preamble(struct net_device *dev,
8218                                    struct iw_request_info *info,
8219                                    union iwreq_data *wrqu, char *extra)
8220 {
8221         struct ipw2100_priv *priv = ieee80211_priv(dev);
8222         int err, mode = *(int *)extra;
8223
8224         down(&priv->action_sem);
8225         if (!(priv->status & STATUS_INITIALIZED)) {
8226                 err = -EIO;
8227                 goto done;
8228         }
8229
8230         if (mode == 1)
8231                 priv->config |= CFG_LONG_PREAMBLE;
8232         else if (mode == 0)
8233                 priv->config &= ~CFG_LONG_PREAMBLE;
8234         else {
8235                 err = -EINVAL;
8236                 goto done;
8237         }
8238
8239         err = ipw2100_system_config(priv, 0);
8240
8241       done:
8242         up(&priv->action_sem);
8243         return err;
8244 }
8245
8246 static int ipw2100_wx_get_preamble(struct net_device *dev,
8247                                    struct iw_request_info *info,
8248                                    union iwreq_data *wrqu, char *extra)
8249 {
8250         /*
8251          * This can be called at any time.  No action lock required
8252          */
8253
8254         struct ipw2100_priv *priv = ieee80211_priv(dev);
8255
8256         if (priv->config & CFG_LONG_PREAMBLE)
8257                 snprintf(wrqu->name, IFNAMSIZ, "long (1)");
8258         else
8259                 snprintf(wrqu->name, IFNAMSIZ, "auto (0)");
8260
8261         return 0;
8262 }
8263
8264 #ifdef CONFIG_IPW2100_MONITOR
8265 static int ipw2100_wx_set_crc_check(struct net_device *dev,
8266                                     struct iw_request_info *info,
8267                                     union iwreq_data *wrqu, char *extra)
8268 {
8269         struct ipw2100_priv *priv = ieee80211_priv(dev);
8270         int err, mode = *(int *)extra;
8271
8272         down(&priv->action_sem);
8273         if (!(priv->status & STATUS_INITIALIZED)) {
8274                 err = -EIO;
8275                 goto done;
8276         }
8277
8278         if (mode == 1)
8279                 priv->config |= CFG_CRC_CHECK;
8280         else if (mode == 0)
8281                 priv->config &= ~CFG_CRC_CHECK;
8282         else {
8283                 err = -EINVAL;
8284                 goto done;
8285         }
8286         err = 0;
8287
8288       done:
8289         up(&priv->action_sem);
8290         return err;
8291 }
8292
8293 static int ipw2100_wx_get_crc_check(struct net_device *dev,
8294                                     struct iw_request_info *info,
8295                                     union iwreq_data *wrqu, char *extra)
8296 {
8297         /*
8298          * This can be called at any time.  No action lock required
8299          */
8300
8301         struct ipw2100_priv *priv = ieee80211_priv(dev);
8302
8303         if (priv->config & CFG_CRC_CHECK)
8304                 snprintf(wrqu->name, IFNAMSIZ, "CRC checked (1)");
8305         else
8306                 snprintf(wrqu->name, IFNAMSIZ, "CRC ignored (0)");
8307
8308         return 0;
8309 }
8310 #endif                          /* CONFIG_IPW2100_MONITOR */
8311
8312 static iw_handler ipw2100_wx_handlers[] = {
8313         NULL,                   /* SIOCSIWCOMMIT */
8314         ipw2100_wx_get_name,    /* SIOCGIWNAME */
8315         NULL,                   /* SIOCSIWNWID */
8316         NULL,                   /* SIOCGIWNWID */
8317         ipw2100_wx_set_freq,    /* SIOCSIWFREQ */
8318         ipw2100_wx_get_freq,    /* SIOCGIWFREQ */
8319         ipw2100_wx_set_mode,    /* SIOCSIWMODE */
8320         ipw2100_wx_get_mode,    /* SIOCGIWMODE */
8321         NULL,                   /* SIOCSIWSENS */
8322         NULL,                   /* SIOCGIWSENS */
8323         NULL,                   /* SIOCSIWRANGE */
8324         ipw2100_wx_get_range,   /* SIOCGIWRANGE */
8325         NULL,                   /* SIOCSIWPRIV */
8326         NULL,                   /* SIOCGIWPRIV */
8327         NULL,                   /* SIOCSIWSTATS */
8328         NULL,                   /* SIOCGIWSTATS */
8329         NULL,                   /* SIOCSIWSPY */
8330         NULL,                   /* SIOCGIWSPY */
8331         NULL,                   /* SIOCGIWTHRSPY */
8332         NULL,                   /* SIOCWIWTHRSPY */
8333         ipw2100_wx_set_wap,     /* SIOCSIWAP */
8334         ipw2100_wx_get_wap,     /* SIOCGIWAP */
8335 #if WIRELESS_EXT > 17
8336         ipw2100_wx_set_mlme,    /* SIOCSIWMLME */
8337 #else
8338         NULL,                   /* -- hole -- */
8339 #endif
8340         NULL,                   /* SIOCGIWAPLIST -- deprecated */
8341         ipw2100_wx_set_scan,    /* SIOCSIWSCAN */
8342         ipw2100_wx_get_scan,    /* SIOCGIWSCAN */
8343         ipw2100_wx_set_essid,   /* SIOCSIWESSID */
8344         ipw2100_wx_get_essid,   /* SIOCGIWESSID */
8345         ipw2100_wx_set_nick,    /* SIOCSIWNICKN */
8346         ipw2100_wx_get_nick,    /* SIOCGIWNICKN */
8347         NULL,                   /* -- hole -- */
8348         NULL,                   /* -- hole -- */
8349         ipw2100_wx_set_rate,    /* SIOCSIWRATE */
8350         ipw2100_wx_get_rate,    /* SIOCGIWRATE */
8351         ipw2100_wx_set_rts,     /* SIOCSIWRTS */
8352         ipw2100_wx_get_rts,     /* SIOCGIWRTS */
8353         ipw2100_wx_set_frag,    /* SIOCSIWFRAG */
8354         ipw2100_wx_get_frag,    /* SIOCGIWFRAG */
8355         ipw2100_wx_set_txpow,   /* SIOCSIWTXPOW */
8356         ipw2100_wx_get_txpow,   /* SIOCGIWTXPOW */
8357         ipw2100_wx_set_retry,   /* SIOCSIWRETRY */
8358         ipw2100_wx_get_retry,   /* SIOCGIWRETRY */
8359         ipw2100_wx_set_encode,  /* SIOCSIWENCODE */
8360         ipw2100_wx_get_encode,  /* SIOCGIWENCODE */
8361         ipw2100_wx_set_power,   /* SIOCSIWPOWER */
8362         ipw2100_wx_get_power,   /* SIOCGIWPOWER */
8363 #if WIRELESS_EXT > 17
8364         NULL,                   /* -- hole -- */
8365         NULL,                   /* -- hole -- */
8366         ipw2100_wx_set_genie,   /* SIOCSIWGENIE */
8367         ipw2100_wx_get_genie,   /* SIOCGIWGENIE */
8368         ipw2100_wx_set_auth,    /* SIOCSIWAUTH */
8369         ipw2100_wx_get_auth,    /* SIOCGIWAUTH */
8370         ipw2100_wx_set_encodeext,       /* SIOCSIWENCODEEXT */
8371         ipw2100_wx_get_encodeext,       /* SIOCGIWENCODEEXT */
8372         NULL,                   /* SIOCSIWPMKSA */
8373 #endif
8374 };
8375
8376 #define IPW2100_PRIV_SET_MONITOR        SIOCIWFIRSTPRIV
8377 #define IPW2100_PRIV_RESET              SIOCIWFIRSTPRIV+1
8378 #define IPW2100_PRIV_SET_POWER          SIOCIWFIRSTPRIV+2
8379 #define IPW2100_PRIV_GET_POWER          SIOCIWFIRSTPRIV+3
8380 #define IPW2100_PRIV_SET_LONGPREAMBLE   SIOCIWFIRSTPRIV+4
8381 #define IPW2100_PRIV_GET_LONGPREAMBLE   SIOCIWFIRSTPRIV+5
8382 #define IPW2100_PRIV_SET_CRC_CHECK      SIOCIWFIRSTPRIV+6
8383 #define IPW2100_PRIV_GET_CRC_CHECK      SIOCIWFIRSTPRIV+7
8384
8385 static const struct iw_priv_args ipw2100_private_args[] = {
8386
8387 #ifdef CONFIG_IPW2100_MONITOR
8388         {
8389          IPW2100_PRIV_SET_MONITOR,
8390          IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2, 0, "monitor"},
8391         {
8392          IPW2100_PRIV_RESET,
8393          IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 0, 0, "reset"},
8394 #endif                          /* CONFIG_IPW2100_MONITOR */
8395
8396         {
8397          IPW2100_PRIV_SET_POWER,
8398          IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "set_power"},
8399         {
8400          IPW2100_PRIV_GET_POWER,
8401          0, IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | MAX_POWER_STRING,
8402          "get_power"},
8403         {
8404          IPW2100_PRIV_SET_LONGPREAMBLE,
8405          IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "set_preamble"},
8406         {
8407          IPW2100_PRIV_GET_LONGPREAMBLE,
8408          0, IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | IFNAMSIZ, "get_preamble"},
8409 #ifdef CONFIG_IPW2100_MONITOR
8410         {
8411          IPW2100_PRIV_SET_CRC_CHECK,
8412          IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "set_crc_check"},
8413         {
8414          IPW2100_PRIV_GET_CRC_CHECK,
8415          0, IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | IFNAMSIZ, "get_crc_check"},
8416 #endif                          /* CONFIG_IPW2100_MONITOR */
8417 };
8418
8419 static iw_handler ipw2100_private_handler[] = {
8420 #ifdef CONFIG_IPW2100_MONITOR
8421         ipw2100_wx_set_promisc,
8422         ipw2100_wx_reset,
8423 #else                           /* CONFIG_IPW2100_MONITOR */
8424         NULL,
8425         NULL,
8426 #endif                          /* CONFIG_IPW2100_MONITOR */
8427         ipw2100_wx_set_powermode,
8428         ipw2100_wx_get_powermode,
8429         ipw2100_wx_set_preamble,
8430         ipw2100_wx_get_preamble,
8431 #ifdef CONFIG_IPW2100_MONITOR
8432         ipw2100_wx_set_crc_check,
8433         ipw2100_wx_get_crc_check,
8434 #else                           /* CONFIG_IPW2100_MONITOR */
8435         NULL,
8436         NULL,
8437 #endif                          /* CONFIG_IPW2100_MONITOR */
8438 };
8439
8440 static struct iw_handler_def ipw2100_wx_handler_def = {
8441         .standard = ipw2100_wx_handlers,
8442         .num_standard = sizeof(ipw2100_wx_handlers) / sizeof(iw_handler),
8443         .num_private = sizeof(ipw2100_private_handler) / sizeof(iw_handler),
8444         .num_private_args = sizeof(ipw2100_private_args) /
8445             sizeof(struct iw_priv_args),
8446         .private = (iw_handler *) ipw2100_private_handler,
8447         .private_args = (struct iw_priv_args *)ipw2100_private_args,
8448 };
8449
8450 /*
8451  * Get wireless statistics.
8452  * Called by /proc/net/wireless
8453  * Also called by SIOCGIWSTATS
8454  */
8455 static struct iw_statistics *ipw2100_wx_wireless_stats(struct net_device *dev)
8456 {
8457         enum {
8458                 POOR = 30,
8459                 FAIR = 60,
8460                 GOOD = 80,
8461                 VERY_GOOD = 90,
8462                 EXCELLENT = 95,
8463                 PERFECT = 100
8464         };
8465         int rssi_qual;
8466         int tx_qual;
8467         int beacon_qual;
8468
8469         struct ipw2100_priv *priv = ieee80211_priv(dev);
8470         struct iw_statistics *wstats;
8471         u32 rssi, quality, tx_retries, missed_beacons, tx_failures;
8472         u32 ord_len = sizeof(u32);
8473
8474         if (!priv)
8475                 return (struct iw_statistics *)NULL;
8476
8477         wstats = &priv->wstats;
8478
8479         /* if hw is disabled, then ipw2100_get_ordinal() can't be called.
8480          * ipw2100_wx_wireless_stats seems to be called before fw is
8481          * initialized.  STATUS_ASSOCIATED will only be set if the hw is up
8482          * and associated; if not associcated, the values are all meaningless
8483          * anyway, so set them all to NULL and INVALID */
8484         if (!(priv->status & STATUS_ASSOCIATED)) {
8485                 wstats->miss.beacon = 0;
8486                 wstats->discard.retries = 0;
8487                 wstats->qual.qual = 0;
8488                 wstats->qual.level = 0;
8489                 wstats->qual.noise = 0;
8490                 wstats->qual.updated = 7;
8491                 wstats->qual.updated |= IW_QUAL_NOISE_INVALID |
8492                     IW_QUAL_QUAL_INVALID | IW_QUAL_LEVEL_INVALID;
8493                 return wstats;
8494         }
8495
8496         if (ipw2100_get_ordinal(priv, IPW_ORD_STAT_PERCENT_MISSED_BCNS,
8497                                 &missed_beacons, &ord_len))
8498                 goto fail_get_ordinal;
8499
8500         /* If we don't have a connection the quality and level is 0 */
8501         if (!(priv->status & STATUS_ASSOCIATED)) {
8502                 wstats->qual.qual = 0;
8503                 wstats->qual.level = 0;
8504         } else {
8505                 if (ipw2100_get_ordinal(priv, IPW_ORD_RSSI_AVG_CURR,
8506                                         &rssi, &ord_len))
8507                         goto fail_get_ordinal;
8508                 wstats->qual.level = rssi + IPW2100_RSSI_TO_DBM;
8509                 if (rssi < 10)
8510                         rssi_qual = rssi * POOR / 10;
8511                 else if (rssi < 15)
8512                         rssi_qual = (rssi - 10) * (FAIR - POOR) / 5 + POOR;
8513                 else if (rssi < 20)
8514                         rssi_qual = (rssi - 15) * (GOOD - FAIR) / 5 + FAIR;
8515                 else if (rssi < 30)
8516                         rssi_qual = (rssi - 20) * (VERY_GOOD - GOOD) /
8517                             10 + GOOD;
8518                 else
8519                         rssi_qual = (rssi - 30) * (PERFECT - VERY_GOOD) /
8520                             10 + VERY_GOOD;
8521
8522                 if (ipw2100_get_ordinal(priv, IPW_ORD_STAT_PERCENT_RETRIES,
8523                                         &tx_retries, &ord_len))
8524                         goto fail_get_ordinal;
8525
8526                 if (tx_retries > 75)
8527                         tx_qual = (90 - tx_retries) * POOR / 15;
8528                 else if (tx_retries > 70)
8529                         tx_qual = (75 - tx_retries) * (FAIR - POOR) / 5 + POOR;
8530                 else if (tx_retries > 65)
8531                         tx_qual = (70 - tx_retries) * (GOOD - FAIR) / 5 + FAIR;
8532                 else if (tx_retries > 50)
8533                         tx_qual = (65 - tx_retries) * (VERY_GOOD - GOOD) /
8534                             15 + GOOD;
8535                 else
8536                         tx_qual = (50 - tx_retries) *
8537                             (PERFECT - VERY_GOOD) / 50 + VERY_GOOD;
8538
8539                 if (missed_beacons > 50)
8540                         beacon_qual = (60 - missed_beacons) * POOR / 10;
8541                 else if (missed_beacons > 40)
8542                         beacon_qual = (50 - missed_beacons) * (FAIR - POOR) /
8543                             10 + POOR;
8544                 else if (missed_beacons > 32)
8545                         beacon_qual = (40 - missed_beacons) * (GOOD - FAIR) /
8546                             18 + FAIR;
8547                 else if (missed_beacons > 20)
8548                         beacon_qual = (32 - missed_beacons) *
8549                             (VERY_GOOD - GOOD) / 20 + GOOD;
8550                 else
8551                         beacon_qual = (20 - missed_beacons) *
8552                             (PERFECT - VERY_GOOD) / 20 + VERY_GOOD;
8553
8554                 quality = min(beacon_qual, min(tx_qual, rssi_qual));
8555
8556 #ifdef CONFIG_IPW_DEBUG
8557                 if (beacon_qual == quality)
8558                         IPW_DEBUG_WX("Quality clamped by Missed Beacons\n");
8559                 else if (tx_qual == quality)
8560                         IPW_DEBUG_WX("Quality clamped by Tx Retries\n");
8561                 else if (quality != 100)
8562                         IPW_DEBUG_WX("Quality clamped by Signal Strength\n");
8563                 else
8564                         IPW_DEBUG_WX("Quality not clamped.\n");
8565 #endif
8566
8567                 wstats->qual.qual = quality;
8568                 wstats->qual.level = rssi + IPW2100_RSSI_TO_DBM;
8569         }
8570
8571         wstats->qual.noise = 0;
8572         wstats->qual.updated = 7;
8573         wstats->qual.updated |= IW_QUAL_NOISE_INVALID;
8574
8575         /* FIXME: this is percent and not a # */
8576         wstats->miss.beacon = missed_beacons;
8577
8578         if (ipw2100_get_ordinal(priv, IPW_ORD_STAT_TX_FAILURES,
8579                                 &tx_failures, &ord_len))
8580                 goto fail_get_ordinal;
8581         wstats->discard.retries = tx_failures;
8582
8583         return wstats;
8584
8585       fail_get_ordinal:
8586         IPW_DEBUG_WX("failed querying ordinals.\n");
8587
8588         return (struct iw_statistics *)NULL;
8589 }
8590
8591 static void ipw2100_wx_event_work(struct ipw2100_priv *priv)
8592 {
8593         union iwreq_data wrqu;
8594         int len = ETH_ALEN;
8595
8596         if (priv->status & STATUS_STOPPING)
8597                 return;
8598
8599         down(&priv->action_sem);
8600
8601         IPW_DEBUG_WX("enter\n");
8602
8603         up(&priv->action_sem);
8604
8605         wrqu.ap_addr.sa_family = ARPHRD_ETHER;
8606
8607         /* Fetch BSSID from the hardware */
8608         if (!(priv->status & (STATUS_ASSOCIATING | STATUS_ASSOCIATED)) ||
8609             priv->status & STATUS_RF_KILL_MASK ||
8610             ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_AP_BSSID,
8611                                 &priv->bssid, &len)) {
8612                 memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN);
8613         } else {
8614                 /* We now have the BSSID, so can finish setting to the full
8615                  * associated state */
8616                 memcpy(wrqu.ap_addr.sa_data, priv->bssid, ETH_ALEN);
8617                 memcpy(priv->ieee->bssid, priv->bssid, ETH_ALEN);
8618                 priv->status &= ~STATUS_ASSOCIATING;
8619                 priv->status |= STATUS_ASSOCIATED;
8620                 netif_carrier_on(priv->net_dev);
8621                 netif_wake_queue(priv->net_dev);
8622         }
8623
8624         if (!(priv->status & STATUS_ASSOCIATED)) {
8625                 IPW_DEBUG_WX("Configuring ESSID\n");
8626                 down(&priv->action_sem);
8627                 /* This is a disassociation event, so kick the firmware to
8628                  * look for another AP */
8629                 if (priv->config & CFG_STATIC_ESSID)
8630                         ipw2100_set_essid(priv, priv->essid, priv->essid_len,
8631                                           0);
8632                 else
8633                         ipw2100_set_essid(priv, NULL, 0, 0);
8634                 up(&priv->action_sem);
8635         }
8636
8637         wireless_send_event(priv->net_dev, SIOCGIWAP, &wrqu, NULL);
8638 }
8639
8640 #define IPW2100_FW_MAJOR_VERSION 1
8641 #define IPW2100_FW_MINOR_VERSION 3
8642
8643 #define IPW2100_FW_MINOR(x) ((x & 0xff) >> 8)
8644 #define IPW2100_FW_MAJOR(x) (x & 0xff)
8645
8646 #define IPW2100_FW_VERSION ((IPW2100_FW_MINOR_VERSION << 8) | \
8647                              IPW2100_FW_MAJOR_VERSION)
8648
8649 #define IPW2100_FW_PREFIX "ipw2100-" __stringify(IPW2100_FW_MAJOR_VERSION) \
8650 "." __stringify(IPW2100_FW_MINOR_VERSION)
8651
8652 #define IPW2100_FW_NAME(x) IPW2100_FW_PREFIX "" x ".fw"
8653
8654 /*
8655
8656 BINARY FIRMWARE HEADER FORMAT
8657
8658 offset      length   desc
8659 0           2        version
8660 2           2        mode == 0:BSS,1:IBSS,2:MONITOR
8661 4           4        fw_len
8662 8           4        uc_len
8663 C           fw_len   firmware data
8664 12 + fw_len uc_len   microcode data
8665
8666 */
8667
8668 struct ipw2100_fw_header {
8669         short version;
8670         short mode;
8671         unsigned int fw_size;
8672         unsigned int uc_size;
8673 } __attribute__ ((packed));
8674
8675 static int ipw2100_mod_firmware_load(struct ipw2100_fw *fw)
8676 {
8677         struct ipw2100_fw_header *h =
8678             (struct ipw2100_fw_header *)fw->fw_entry->data;
8679
8680         if (IPW2100_FW_MAJOR(h->version) != IPW2100_FW_MAJOR_VERSION) {
8681                 printk(KERN_WARNING DRV_NAME ": Firmware image not compatible "
8682                        "(detected version id of %u). "
8683                        "See Documentation/networking/README.ipw2100\n",
8684                        h->version);
8685                 return 1;
8686         }
8687
8688         fw->version = h->version;
8689         fw->fw.data = fw->fw_entry->data + sizeof(struct ipw2100_fw_header);
8690         fw->fw.size = h->fw_size;
8691         fw->uc.data = fw->fw.data + h->fw_size;
8692         fw->uc.size = h->uc_size;
8693
8694         return 0;
8695 }
8696
8697 static int ipw2100_get_firmware(struct ipw2100_priv *priv,
8698                                 struct ipw2100_fw *fw)
8699 {
8700         char *fw_name;
8701         int rc;
8702
8703         IPW_DEBUG_INFO("%s: Using hotplug firmware load.\n",
8704                        priv->net_dev->name);
8705
8706         switch (priv->ieee->iw_mode) {
8707         case IW_MODE_ADHOC:
8708                 fw_name = IPW2100_FW_NAME("-i");
8709                 break;
8710 #ifdef CONFIG_IPW2100_MONITOR
8711         case IW_MODE_MONITOR:
8712                 fw_name = IPW2100_FW_NAME("-p");
8713                 break;
8714 #endif
8715         case IW_MODE_INFRA:
8716         default:
8717                 fw_name = IPW2100_FW_NAME("");
8718                 break;
8719         }
8720
8721         rc = request_firmware(&fw->fw_entry, fw_name, &priv->pci_dev->dev);
8722
8723         if (rc < 0) {
8724                 printk(KERN_ERR DRV_NAME ": "
8725                        "%s: Firmware '%s' not available or load failed.\n",
8726                        priv->net_dev->name, fw_name);
8727                 return rc;
8728         }
8729         IPW_DEBUG_INFO("firmware data %p size %zd\n", fw->fw_entry->data,
8730                        fw->fw_entry->size);
8731
8732         ipw2100_mod_firmware_load(fw);
8733
8734         return 0;
8735 }
8736
8737 static void ipw2100_release_firmware(struct ipw2100_priv *priv,
8738                                      struct ipw2100_fw *fw)
8739 {
8740         fw->version = 0;
8741         if (fw->fw_entry)
8742                 release_firmware(fw->fw_entry);
8743         fw->fw_entry = NULL;
8744 }
8745
8746 static int ipw2100_get_fwversion(struct ipw2100_priv *priv, char *buf,
8747                                  size_t max)
8748 {
8749         char ver[MAX_FW_VERSION_LEN];
8750         u32 len = MAX_FW_VERSION_LEN;
8751         u32 tmp;
8752         int i;
8753         /* firmware version is an ascii string (max len of 14) */
8754         if (ipw2100_get_ordinal(priv, IPW_ORD_STAT_FW_VER_NUM, ver, &len))
8755                 return -EIO;
8756         tmp = max;
8757         if (len >= max)
8758                 len = max - 1;
8759         for (i = 0; i < len; i++)
8760                 buf[i] = ver[i];
8761         buf[i] = '\0';
8762         return tmp;
8763 }
8764
8765 static int ipw2100_get_ucodeversion(struct ipw2100_priv *priv, char *buf,
8766                                     size_t max)
8767 {
8768         u32 ver;
8769         u32 len = sizeof(ver);
8770         /* microcode version is a 32 bit integer */
8771         if (ipw2100_get_ordinal(priv, IPW_ORD_UCODE_VERSION, &ver, &len))
8772                 return -EIO;
8773         return snprintf(buf, max, "%08X", ver);
8774 }
8775
8776 /*
8777  * On exit, the firmware will have been freed from the fw list
8778  */
8779 static int ipw2100_fw_download(struct ipw2100_priv *priv, struct ipw2100_fw *fw)
8780 {
8781         /* firmware is constructed of N contiguous entries, each entry is
8782          * structured as:
8783          *
8784          * offset    sie         desc
8785          * 0         4           address to write to
8786          * 4         2           length of data run
8787          * 6         length      data
8788          */
8789         unsigned int addr;
8790         unsigned short len;
8791
8792         const unsigned char *firmware_data = fw->fw.data;
8793         unsigned int firmware_data_left = fw->fw.size;
8794
8795         while (firmware_data_left > 0) {
8796                 addr = *(u32 *) (firmware_data);
8797                 firmware_data += 4;
8798                 firmware_data_left -= 4;
8799
8800                 len = *(u16 *) (firmware_data);
8801                 firmware_data += 2;
8802                 firmware_data_left -= 2;
8803
8804                 if (len > 32) {
8805                         printk(KERN_ERR DRV_NAME ": "
8806                                "Invalid firmware run-length of %d bytes\n",
8807                                len);
8808                         return -EINVAL;
8809                 }
8810
8811                 write_nic_memory(priv->net_dev, addr, len, firmware_data);
8812                 firmware_data += len;
8813                 firmware_data_left -= len;
8814         }
8815
8816         return 0;
8817 }
8818
8819 struct symbol_alive_response {
8820         u8 cmd_id;
8821         u8 seq_num;
8822         u8 ucode_rev;
8823         u8 eeprom_valid;
8824         u16 valid_flags;
8825         u8 IEEE_addr[6];
8826         u16 flags;
8827         u16 pcb_rev;
8828         u16 clock_settle_time;  // 1us LSB
8829         u16 powerup_settle_time;        // 1us LSB
8830         u16 hop_settle_time;    // 1us LSB
8831         u8 date[3];             // month, day, year
8832         u8 time[2];             // hours, minutes
8833         u8 ucode_valid;
8834 };
8835
8836 static int ipw2100_ucode_download(struct ipw2100_priv *priv,
8837                                   struct ipw2100_fw *fw)
8838 {
8839         struct net_device *dev = priv->net_dev;
8840         const unsigned char *microcode_data = fw->uc.data;
8841         unsigned int microcode_data_left = fw->uc.size;
8842         void __iomem *reg = (void __iomem *)dev->base_addr;
8843
8844         struct symbol_alive_response response;
8845         int i, j;
8846         u8 data;
8847
8848         /* Symbol control */
8849         write_nic_word(dev, IPW2100_CONTROL_REG, 0x703);
8850         readl(reg);
8851         write_nic_word(dev, IPW2100_CONTROL_REG, 0x707);
8852         readl(reg);
8853
8854         /* HW config */
8855         write_nic_byte(dev, 0x210014, 0x72);    /* fifo width =16 */
8856         readl(reg);
8857         write_nic_byte(dev, 0x210014, 0x72);    /* fifo width =16 */
8858         readl(reg);
8859
8860         /* EN_CS_ACCESS bit to reset control store pointer */
8861         write_nic_byte(dev, 0x210000, 0x40);
8862         readl(reg);
8863         write_nic_byte(dev, 0x210000, 0x0);
8864         readl(reg);
8865         write_nic_byte(dev, 0x210000, 0x40);
8866         readl(reg);
8867
8868         /* copy microcode from buffer into Symbol */
8869
8870         while (microcode_data_left > 0) {
8871                 write_nic_byte(dev, 0x210010, *microcode_data++);
8872                 write_nic_byte(dev, 0x210010, *microcode_data++);
8873                 microcode_data_left -= 2;
8874         }
8875
8876         /* EN_CS_ACCESS bit to reset the control store pointer */
8877         write_nic_byte(dev, 0x210000, 0x0);
8878         readl(reg);
8879
8880         /* Enable System (Reg 0)
8881          * first enable causes garbage in RX FIFO */
8882         write_nic_byte(dev, 0x210000, 0x0);
8883         readl(reg);
8884         write_nic_byte(dev, 0x210000, 0x80);
8885         readl(reg);
8886
8887         /* Reset External Baseband Reg */
8888         write_nic_word(dev, IPW2100_CONTROL_REG, 0x703);
8889         readl(reg);
8890         write_nic_word(dev, IPW2100_CONTROL_REG, 0x707);
8891         readl(reg);
8892
8893         /* HW Config (Reg 5) */
8894         write_nic_byte(dev, 0x210014, 0x72);    // fifo width =16
8895         readl(reg);
8896         write_nic_byte(dev, 0x210014, 0x72);    // fifo width =16
8897         readl(reg);
8898
8899         /* Enable System (Reg 0)
8900          * second enable should be OK */
8901         write_nic_byte(dev, 0x210000, 0x00);    // clear enable system
8902         readl(reg);
8903         write_nic_byte(dev, 0x210000, 0x80);    // set enable system
8904
8905         /* check Symbol is enabled - upped this from 5 as it wasn't always
8906          * catching the update */
8907         for (i = 0; i < 10; i++) {
8908                 udelay(10);
8909
8910                 /* check Dino is enabled bit */
8911                 read_nic_byte(dev, 0x210000, &data);
8912                 if (data & 0x1)
8913                         break;
8914         }
8915
8916         if (i == 10) {
8917                 printk(KERN_ERR DRV_NAME ": %s: Error initializing Symbol\n",
8918                        dev->name);
8919                 return -EIO;
8920         }
8921
8922         /* Get Symbol alive response */
8923         for (i = 0; i < 30; i++) {
8924                 /* Read alive response structure */
8925                 for (j = 0;
8926                      j < (sizeof(struct symbol_alive_response) >> 1); j++)
8927                         read_nic_word(dev, 0x210004, ((u16 *) & response) + j);
8928
8929                 if ((response.cmd_id == 1) && (response.ucode_valid == 0x1))
8930                         break;
8931                 udelay(10);
8932         }
8933
8934         if (i == 30) {
8935                 printk(KERN_ERR DRV_NAME
8936                        ": %s: No response from Symbol - hw not alive\n",
8937                        dev->name);
8938                 printk_buf(IPW_DL_ERROR, (u8 *) & response, sizeof(response));
8939                 return -EIO;
8940         }
8941
8942         return 0;
8943 }