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->sec.flags & SEC_ENABLED) && priv->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->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->sec.flags & SEC_AUTH_MODE) &&
5359                     (priv->sec.auth_mode == WLAN_AUTH_SHARED_KEY))
5360                         auth_mode = IPW_AUTH_SHARED;
5361
5362                 sec_level = SEC_LEVEL_0;
5363                 if (priv->sec.flags & SEC_LEVEL)
5364                         sec_level = priv->sec.level;
5365
5366                 use_group = 0;
5367                 if (priv->sec.flags & SEC_UNICAST_GROUP)
5368                         use_group = priv->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->sec.enabled) {
5379                 for (i = 0; i < 4; i++) {
5380                         if (!(priv->sec.flags & (1 << i))) {
5381                                 memset(priv->sec.keys[i], 0, WEP_KEY_LEN);
5382                                 priv->sec.key_sizes[i] = 0;
5383                         } else {
5384                                 err = ipw2100_set_key(priv, i,
5385                                                       priv->sec.keys[i],
5386                                                       priv->sec.key_sizes[i],
5387                                                       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->sec.enabled ? IPW_PRIVACY_CAPABLE : 0,
5401                                   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->sec.key_sizes[i] = sec->key_sizes[i];
5437                         if (sec->key_sizes[i] == 0)
5438                                 priv->sec.flags &= ~(1 << i);
5439                         else
5440                                 memcpy(priv->sec.keys[i], sec->keys[i],
5441                                        sec->key_sizes[i]);
5442                         priv->sec.flags |= (1 << i);
5443                         priv->status |= STATUS_SECURITY_UPDATED;
5444                 }
5445         }
5446
5447         if ((sec->flags & SEC_ACTIVE_KEY) &&
5448             priv->sec.active_key != sec->active_key) {
5449                 if (sec->active_key <= 3) {
5450                         priv->sec.active_key = sec->active_key;
5451                         priv->sec.flags |= SEC_ACTIVE_KEY;
5452                 } else
5453                         priv->sec.flags &= ~SEC_ACTIVE_KEY;
5454
5455                 priv->status |= STATUS_SECURITY_UPDATED;
5456         }
5457
5458         if ((sec->flags & SEC_AUTH_MODE) &&
5459             (priv->sec.auth_mode != sec->auth_mode)) {
5460                 priv->sec.auth_mode = sec->auth_mode;
5461                 priv->sec.flags |= SEC_AUTH_MODE;
5462                 priv->status |= STATUS_SECURITY_UPDATED;
5463         }
5464
5465         if (sec->flags & SEC_ENABLED && priv->sec.enabled != sec->enabled) {
5466                 priv->sec.flags |= SEC_ENABLED;
5467                 priv->sec.enabled = sec->enabled;
5468                 priv->status |= STATUS_SECURITY_UPDATED;
5469                 force_update = 1;
5470         }
5471
5472         if (sec->flags & SEC_LEVEL && priv->sec.level != sec->level) {
5473                 priv->sec.level = sec->level;
5474                 priv->sec.flags |= SEC_LEVEL;
5475                 priv->status |= STATUS_SECURITY_UPDATED;
5476         }
5477
5478         IPW_DEBUG_WEP("Security flags: %c %c%c%c%c %c%c%c%c\n",
5479                       priv->sec.flags & (1 << 8) ? '1' : '0',
5480                       priv->sec.flags & (1 << 7) ? '1' : '0',
5481                       priv->sec.flags & (1 << 6) ? '1' : '0',
5482                       priv->sec.flags & (1 << 5) ? '1' : '0',
5483                       priv->sec.flags & (1 << 4) ? '1' : '0',
5484                       priv->sec.flags & (1 << 3) ? '1' : '0',
5485                       priv->sec.flags & (1 << 2) ? '1' : '0',
5486                       priv->sec.flags & (1 << 1) ? '1' : '0',
5487                       priv->sec.flags & (1 << 0) ? '1' : '0');
5488
5489 /* As a temporary work around to enable WPA until we figure out why
5490  * wpa_supplicant toggles the security capability of the driver, which
5491  * forces a disassocation with force_update...
5492  *
5493  *      if (force_update || !(priv->status & STATUS_ASSOCIATED))*/
5494         if (!(priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)))
5495                 ipw2100_configure_security(priv, 0);
5496       done:
5497         up(&priv->action_sem);
5498 }
5499
5500 static int ipw2100_adapter_setup(struct ipw2100_priv *priv)
5501 {
5502         int err;
5503         int batch_mode = 1;
5504         u8 *bssid;
5505
5506         IPW_DEBUG_INFO("enter\n");
5507
5508         err = ipw2100_disable_adapter(priv);
5509         if (err)
5510                 return err;
5511 #ifdef CONFIG_IPW2100_MONITOR
5512         if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
5513                 err = ipw2100_set_channel(priv, priv->channel, batch_mode);
5514                 if (err)
5515                         return err;
5516
5517                 IPW_DEBUG_INFO("exit\n");
5518
5519                 return 0;
5520         }
5521 #endif                          /* CONFIG_IPW2100_MONITOR */
5522
5523         err = ipw2100_read_mac_address(priv);
5524         if (err)
5525                 return -EIO;
5526
5527         err = ipw2100_set_mac_address(priv, batch_mode);
5528         if (err)
5529                 return err;
5530
5531         err = ipw2100_set_port_type(priv, priv->ieee->iw_mode, batch_mode);
5532         if (err)
5533                 return err;
5534
5535         if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
5536                 err = ipw2100_set_channel(priv, priv->channel, batch_mode);
5537                 if (err)
5538                         return err;
5539         }
5540
5541         err = ipw2100_system_config(priv, batch_mode);
5542         if (err)
5543                 return err;
5544
5545         err = ipw2100_set_tx_rates(priv, priv->tx_rates, batch_mode);
5546         if (err)
5547                 return err;
5548
5549         /* Default to power mode OFF */
5550         err = ipw2100_set_power_mode(priv, IPW_POWER_MODE_CAM);
5551         if (err)
5552                 return err;
5553
5554         err = ipw2100_set_rts_threshold(priv, priv->rts_threshold);
5555         if (err)
5556                 return err;
5557
5558         if (priv->config & CFG_STATIC_BSSID)
5559                 bssid = priv->bssid;
5560         else
5561                 bssid = NULL;
5562         err = ipw2100_set_mandatory_bssid(priv, bssid, batch_mode);
5563         if (err)
5564                 return err;
5565
5566         if (priv->config & CFG_STATIC_ESSID)
5567                 err = ipw2100_set_essid(priv, priv->essid, priv->essid_len,
5568                                         batch_mode);
5569         else
5570                 err = ipw2100_set_essid(priv, NULL, 0, batch_mode);
5571         if (err)
5572                 return err;
5573
5574         err = ipw2100_configure_security(priv, batch_mode);
5575         if (err)
5576                 return err;
5577
5578         if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
5579                 err =
5580                     ipw2100_set_ibss_beacon_interval(priv,
5581                                                      priv->beacon_interval,
5582                                                      batch_mode);
5583                 if (err)
5584                         return err;
5585
5586                 err = ipw2100_set_tx_power(priv, priv->tx_power);
5587                 if (err)
5588                         return err;
5589         }
5590
5591         /*
5592            err = ipw2100_set_fragmentation_threshold(
5593            priv, priv->frag_threshold, batch_mode);
5594            if (err)
5595            return err;
5596          */
5597
5598         IPW_DEBUG_INFO("exit\n");
5599
5600         return 0;
5601 }
5602
5603 /*************************************************************************
5604  *
5605  * EXTERNALLY CALLED METHODS
5606  *
5607  *************************************************************************/
5608
5609 /* This method is called by the network layer -- not to be confused with
5610  * ipw2100_set_mac_address() declared above called by this driver (and this
5611  * method as well) to talk to the firmware */
5612 static int ipw2100_set_address(struct net_device *dev, void *p)
5613 {
5614         struct ipw2100_priv *priv = ieee80211_priv(dev);
5615         struct sockaddr *addr = p;
5616         int err = 0;
5617
5618         if (!is_valid_ether_addr(addr->sa_data))
5619                 return -EADDRNOTAVAIL;
5620
5621         down(&priv->action_sem);
5622
5623         priv->config |= CFG_CUSTOM_MAC;
5624         memcpy(priv->mac_addr, addr->sa_data, ETH_ALEN);
5625
5626         err = ipw2100_set_mac_address(priv, 0);
5627         if (err)
5628                 goto done;
5629
5630         priv->reset_backoff = 0;
5631         up(&priv->action_sem);
5632         ipw2100_reset_adapter(priv);
5633         return 0;
5634
5635       done:
5636         up(&priv->action_sem);
5637         return err;
5638 }
5639
5640 static int ipw2100_open(struct net_device *dev)
5641 {
5642         struct ipw2100_priv *priv = ieee80211_priv(dev);
5643         unsigned long flags;
5644         IPW_DEBUG_INFO("dev->open\n");
5645
5646         spin_lock_irqsave(&priv->low_lock, flags);
5647         if (priv->status & STATUS_ASSOCIATED) {
5648                 netif_carrier_on(dev);
5649                 netif_start_queue(dev);
5650         }
5651         spin_unlock_irqrestore(&priv->low_lock, flags);
5652
5653         return 0;
5654 }
5655
5656 static int ipw2100_close(struct net_device *dev)
5657 {
5658         struct ipw2100_priv *priv = ieee80211_priv(dev);
5659         unsigned long flags;
5660         struct list_head *element;
5661         struct ipw2100_tx_packet *packet;
5662
5663         IPW_DEBUG_INFO("enter\n");
5664
5665         spin_lock_irqsave(&priv->low_lock, flags);
5666
5667         if (priv->status & STATUS_ASSOCIATED)
5668                 netif_carrier_off(dev);
5669         netif_stop_queue(dev);
5670
5671         /* Flush the TX queue ... */
5672         while (!list_empty(&priv->tx_pend_list)) {
5673                 element = priv->tx_pend_list.next;
5674                 packet = list_entry(element, struct ipw2100_tx_packet, list);
5675
5676                 list_del(element);
5677                 DEC_STAT(&priv->tx_pend_stat);
5678
5679                 ieee80211_txb_free(packet->info.d_struct.txb);
5680                 packet->info.d_struct.txb = NULL;
5681
5682                 list_add_tail(element, &priv->tx_free_list);
5683                 INC_STAT(&priv->tx_free_stat);
5684         }
5685         spin_unlock_irqrestore(&priv->low_lock, flags);
5686
5687         IPW_DEBUG_INFO("exit\n");
5688
5689         return 0;
5690 }
5691
5692 /*
5693  * TODO:  Fix this function... its just wrong
5694  */
5695 static void ipw2100_tx_timeout(struct net_device *dev)
5696 {
5697         struct ipw2100_priv *priv = ieee80211_priv(dev);
5698
5699         priv->ieee->stats.tx_errors++;
5700
5701 #ifdef CONFIG_IPW2100_MONITOR
5702         if (priv->ieee->iw_mode == IW_MODE_MONITOR)
5703                 return;
5704 #endif
5705
5706         IPW_DEBUG_INFO("%s: TX timed out.  Scheduling firmware restart.\n",
5707                        dev->name);
5708         schedule_reset(priv);
5709 }
5710
5711 /*
5712  * TODO: reimplement it so that it reads statistics
5713  *       from the adapter using ordinal tables
5714  *       instead of/in addition to collecting them
5715  *       in the driver
5716  */
5717 static struct net_device_stats *ipw2100_stats(struct net_device *dev)
5718 {
5719         struct ipw2100_priv *priv = ieee80211_priv(dev);
5720
5721         return &priv->ieee->stats;
5722 }
5723
5724 #if WIRELESS_EXT < 18
5725 /* Support for wpa_supplicant before WE-18, deprecated. */
5726
5727 /* following definitions must match definitions in driver_ipw.c */
5728
5729 #define IPW2100_IOCTL_WPA_SUPPLICANT            SIOCIWFIRSTPRIV+30
5730
5731 #define IPW2100_CMD_SET_WPA_PARAM               1
5732 #define IPW2100_CMD_SET_WPA_IE                  2
5733 #define IPW2100_CMD_SET_ENCRYPTION              3
5734 #define IPW2100_CMD_MLME                        4
5735
5736 #define IPW2100_PARAM_WPA_ENABLED               1
5737 #define IPW2100_PARAM_TKIP_COUNTERMEASURES      2
5738 #define IPW2100_PARAM_DROP_UNENCRYPTED          3
5739 #define IPW2100_PARAM_PRIVACY_INVOKED           4
5740 #define IPW2100_PARAM_AUTH_ALGS                 5
5741 #define IPW2100_PARAM_IEEE_802_1X               6
5742
5743 #define IPW2100_MLME_STA_DEAUTH                 1
5744 #define IPW2100_MLME_STA_DISASSOC               2
5745
5746 #define IPW2100_CRYPT_ERR_UNKNOWN_ALG           2
5747 #define IPW2100_CRYPT_ERR_UNKNOWN_ADDR          3
5748 #define IPW2100_CRYPT_ERR_CRYPT_INIT_FAILED     4
5749 #define IPW2100_CRYPT_ERR_KEY_SET_FAILED        5
5750 #define IPW2100_CRYPT_ERR_TX_KEY_SET_FAILED     6
5751 #define IPW2100_CRYPT_ERR_CARD_CONF_FAILED      7
5752
5753 #define IPW2100_CRYPT_ALG_NAME_LEN              16
5754
5755 struct ipw2100_param {
5756         u32 cmd;
5757         u8 sta_addr[ETH_ALEN];
5758         union {
5759                 struct {
5760                         u8 name;
5761                         u32 value;
5762                 } wpa_param;
5763                 struct {
5764                         u32 len;
5765                         u8 reserved[32];
5766                         u8 data[0];
5767                 } wpa_ie;
5768                 struct {
5769                         u32 command;
5770                         u32 reason_code;
5771                 } mlme;
5772                 struct {
5773                         u8 alg[IPW2100_CRYPT_ALG_NAME_LEN];
5774                         u8 set_tx;
5775                         u32 err;
5776                         u8 idx;
5777                         u8 seq[8];      /* sequence counter (set: RX, get: TX) */
5778                         u16 key_len;
5779                         u8 key[0];
5780                 } crypt;
5781
5782         } u;
5783 };
5784
5785 /* end of driver_ipw.c code */
5786 #endif                          /* WIRELESS_EXT < 18 */
5787
5788 static int ipw2100_wpa_enable(struct ipw2100_priv *priv, int value)
5789 {
5790         /* This is called when wpa_supplicant loads and closes the driver
5791          * interface. */
5792         priv->ieee->wpa_enabled = value;
5793         return 0;
5794 }
5795
5796 #if WIRELESS_EXT < 18
5797 #define IW_AUTH_ALG_OPEN_SYSTEM                 0x1
5798 #define IW_AUTH_ALG_SHARED_KEY                  0x2
5799 #endif
5800
5801 static int ipw2100_wpa_set_auth_algs(struct ipw2100_priv *priv, int value)
5802 {
5803
5804         struct ieee80211_device *ieee = priv->ieee;
5805         struct ieee80211_security sec = {
5806                 .flags = SEC_AUTH_MODE,
5807         };
5808         int ret = 0;
5809
5810         if (value & IW_AUTH_ALG_SHARED_KEY) {
5811                 sec.auth_mode = WLAN_AUTH_SHARED_KEY;
5812                 ieee->open_wep = 0;
5813         } else if (value & IW_AUTH_ALG_OPEN_SYSTEM) {
5814                 sec.auth_mode = WLAN_AUTH_OPEN;
5815                 ieee->open_wep = 1;
5816         } else
5817                 return -EINVAL;
5818
5819         if (ieee->set_security)
5820                 ieee->set_security(ieee->dev, &sec);
5821         else
5822                 ret = -EOPNOTSUPP;
5823
5824         return ret;
5825 }
5826
5827 void ipw2100_wpa_assoc_frame(struct ipw2100_priv *priv,
5828                              char *wpa_ie, int wpa_ie_len)
5829 {
5830
5831         struct ipw2100_wpa_assoc_frame frame;
5832
5833         frame.fixed_ie_mask = 0;
5834
5835         /* copy WPA IE */
5836         memcpy(frame.var_ie, wpa_ie, wpa_ie_len);
5837         frame.var_ie_len = wpa_ie_len;
5838
5839         /* make sure WPA is enabled */
5840         ipw2100_wpa_enable(priv, 1);
5841         ipw2100_set_wpa_ie(priv, &frame, 0);
5842 }
5843
5844 #if WIRELESS_EXT < 18
5845 static int ipw2100_wpa_set_param(struct net_device *dev, u8 name, u32 value)
5846 {
5847         struct ipw2100_priv *priv = ieee80211_priv(dev);
5848         struct ieee80211_crypt_data *crypt;
5849         unsigned long flags;
5850         int ret = 0;
5851
5852         switch (name) {
5853         case IPW2100_PARAM_WPA_ENABLED:
5854                 ret = ipw2100_wpa_enable(priv, value);
5855                 break;
5856
5857         case IPW2100_PARAM_TKIP_COUNTERMEASURES:
5858                 crypt = priv->ieee->crypt[priv->ieee->tx_keyidx];
5859                 if (!crypt || !crypt->ops->set_flags || !crypt->ops->get_flags) {
5860                         IPW_DEBUG_WARNING("Can't set TKIP countermeasures: "
5861                                           "crypt not set!\n");
5862                         break;
5863                 }
5864
5865                 flags = crypt->ops->get_flags(crypt->priv);
5866
5867                 if (value)
5868                         flags |= IEEE80211_CRYPTO_TKIP_COUNTERMEASURES;
5869                 else
5870                         flags &= ~IEEE80211_CRYPTO_TKIP_COUNTERMEASURES;
5871
5872                 crypt->ops->set_flags(flags, crypt->priv);
5873
5874                 break;
5875
5876         case IPW2100_PARAM_DROP_UNENCRYPTED:
5877                 priv->ieee->drop_unencrypted = value;
5878                 break;
5879
5880         case IPW2100_PARAM_PRIVACY_INVOKED:
5881                 priv->ieee->privacy_invoked = value;
5882                 break;
5883
5884         case IPW2100_PARAM_AUTH_ALGS:
5885                 ret = ipw2100_wpa_set_auth_algs(priv, value);
5886                 break;
5887
5888         case IPW2100_PARAM_IEEE_802_1X:
5889                 priv->ieee->ieee802_1x = value;
5890                 break;
5891
5892         default:
5893                 printk(KERN_ERR DRV_NAME ": %s: Unknown WPA param: %d\n",
5894                        dev->name, name);
5895                 ret = -EOPNOTSUPP;
5896         }
5897
5898         return ret;
5899 }
5900
5901 static int ipw2100_wpa_mlme(struct net_device *dev, int command, int reason)
5902 {
5903
5904         struct ipw2100_priv *priv = ieee80211_priv(dev);
5905         int ret = 0;
5906
5907         switch (command) {
5908         case IPW2100_MLME_STA_DEAUTH:
5909                 // silently ignore
5910                 break;
5911
5912         case IPW2100_MLME_STA_DISASSOC:
5913                 ipw2100_disassociate_bssid(priv);
5914                 break;
5915
5916         default:
5917                 printk(KERN_ERR DRV_NAME ": %s: Unknown MLME request: %d\n",
5918                        dev->name, command);
5919                 ret = -EOPNOTSUPP;
5920         }
5921
5922         return ret;
5923 }
5924
5925 static int ipw2100_wpa_set_wpa_ie(struct net_device *dev,
5926                                   struct ipw2100_param *param, int plen)
5927 {
5928
5929         struct ipw2100_priv *priv = ieee80211_priv(dev);
5930         struct ieee80211_device *ieee = priv->ieee;
5931         u8 *buf;
5932
5933         if (!ieee->wpa_enabled)
5934                 return -EOPNOTSUPP;
5935
5936         if (param->u.wpa_ie.len > MAX_WPA_IE_LEN ||
5937             (param->u.wpa_ie.len && param->u.wpa_ie.data == NULL))
5938                 return -EINVAL;
5939
5940         if (param->u.wpa_ie.len) {
5941                 buf = kmalloc(param->u.wpa_ie.len, GFP_KERNEL);
5942                 if (buf == NULL)
5943                         return -ENOMEM;
5944
5945                 memcpy(buf, param->u.wpa_ie.data, param->u.wpa_ie.len);
5946
5947                 kfree(ieee->wpa_ie);
5948                 ieee->wpa_ie = buf;
5949                 ieee->wpa_ie_len = param->u.wpa_ie.len;
5950
5951         } else {
5952                 kfree(ieee->wpa_ie);
5953                 ieee->wpa_ie = NULL;
5954                 ieee->wpa_ie_len = 0;
5955         }
5956
5957         ipw2100_wpa_assoc_frame(priv, ieee->wpa_ie, ieee->wpa_ie_len);
5958
5959         return 0;
5960 }
5961
5962 /* implementation borrowed from hostap driver */
5963
5964 static int ipw2100_wpa_set_encryption(struct net_device *dev,
5965                                       struct ipw2100_param *param,
5966                                       int param_len)
5967 {
5968         int ret = 0;
5969         struct ipw2100_priv *priv = ieee80211_priv(dev);
5970         struct ieee80211_device *ieee = priv->ieee;
5971         struct ieee80211_crypto_ops *ops;
5972         struct ieee80211_crypt_data **crypt;
5973
5974         struct ieee80211_security sec = {
5975                 .flags = 0,
5976         };
5977
5978         param->u.crypt.err = 0;
5979         param->u.crypt.alg[IPW2100_CRYPT_ALG_NAME_LEN - 1] = '\0';
5980
5981         if (param_len !=
5982             (int)((char *)param->u.crypt.key - (char *)param) +
5983             param->u.crypt.key_len) {
5984                 IPW_DEBUG_INFO("Len mismatch %d, %d\n", param_len,
5985                                param->u.crypt.key_len);
5986                 return -EINVAL;
5987         }
5988         if (param->sta_addr[0] == 0xff && param->sta_addr[1] == 0xff &&
5989             param->sta_addr[2] == 0xff && param->sta_addr[3] == 0xff &&
5990             param->sta_addr[4] == 0xff && param->sta_addr[5] == 0xff) {
5991                 if (param->u.crypt.idx >= WEP_KEYS)
5992                         return -EINVAL;
5993                 crypt = &ieee->crypt[param->u.crypt.idx];
5994         } else {
5995                 return -EINVAL;
5996         }
5997
5998         if (strcmp(param->u.crypt.alg, "none") == 0) {
5999                 if (crypt) {
6000                         sec.enabled = 0;
6001                         sec.level = SEC_LEVEL_0;
6002                         sec.flags |= SEC_ENABLED | SEC_LEVEL;
6003                         ieee80211_crypt_delayed_deinit(ieee, crypt);
6004                 }
6005                 goto done;
6006         }
6007         sec.enabled = 1;
6008         sec.flags |= SEC_ENABLED;
6009
6010         ops = ieee80211_get_crypto_ops(param->u.crypt.alg);
6011         if (ops == NULL && strcmp(param->u.crypt.alg, "WEP") == 0) {
6012                 request_module("ieee80211_crypt_wep");
6013                 ops = ieee80211_get_crypto_ops(param->u.crypt.alg);
6014         } else if (ops == NULL && strcmp(param->u.crypt.alg, "TKIP") == 0) {
6015                 request_module("ieee80211_crypt_tkip");
6016                 ops = ieee80211_get_crypto_ops(param->u.crypt.alg);
6017         } else if (ops == NULL && strcmp(param->u.crypt.alg, "CCMP") == 0) {
6018                 request_module("ieee80211_crypt_ccmp");
6019                 ops = ieee80211_get_crypto_ops(param->u.crypt.alg);
6020         }
6021         if (ops == NULL) {
6022                 IPW_DEBUG_INFO("%s: unknown crypto alg '%s'\n",
6023                                dev->name, param->u.crypt.alg);
6024                 param->u.crypt.err = IPW2100_CRYPT_ERR_UNKNOWN_ALG;
6025                 ret = -EINVAL;
6026                 goto done;
6027         }
6028
6029         if (*crypt == NULL || (*crypt)->ops != ops) {
6030                 struct ieee80211_crypt_data *new_crypt;
6031
6032                 ieee80211_crypt_delayed_deinit(ieee, crypt);
6033
6034                 new_crypt = (struct ieee80211_crypt_data *)
6035                     kmalloc(sizeof(struct ieee80211_crypt_data), GFP_KERNEL);
6036                 if (new_crypt == NULL) {
6037                         ret = -ENOMEM;
6038                         goto done;
6039                 }
6040                 memset(new_crypt, 0, sizeof(struct ieee80211_crypt_data));
6041                 new_crypt->ops = ops;
6042                 if (new_crypt->ops && try_module_get(new_crypt->ops->owner))
6043                         new_crypt->priv =
6044                             new_crypt->ops->init(param->u.crypt.idx);
6045
6046                 if (new_crypt->priv == NULL) {
6047                         kfree(new_crypt);
6048                         param->u.crypt.err =
6049                             IPW2100_CRYPT_ERR_CRYPT_INIT_FAILED;
6050                         ret = -EINVAL;
6051                         goto done;
6052                 }
6053
6054                 *crypt = new_crypt;
6055         }
6056
6057         if (param->u.crypt.key_len > 0 && (*crypt)->ops->set_key &&
6058             (*crypt)->ops->set_key(param->u.crypt.key,
6059                                    param->u.crypt.key_len, param->u.crypt.seq,
6060                                    (*crypt)->priv) < 0) {
6061                 IPW_DEBUG_INFO("%s: key setting failed\n", dev->name);
6062                 param->u.crypt.err = IPW2100_CRYPT_ERR_KEY_SET_FAILED;
6063                 ret = -EINVAL;
6064                 goto done;
6065         }
6066
6067         if (param->u.crypt.set_tx) {
6068                 ieee->tx_keyidx = param->u.crypt.idx;
6069                 sec.active_key = param->u.crypt.idx;
6070                 sec.flags |= SEC_ACTIVE_KEY;
6071         }
6072
6073         if (ops->name != NULL) {
6074
6075                 if (strcmp(ops->name, "WEP") == 0) {
6076                         memcpy(sec.keys[param->u.crypt.idx],
6077                                param->u.crypt.key, param->u.crypt.key_len);
6078                         sec.key_sizes[param->u.crypt.idx] =
6079                             param->u.crypt.key_len;
6080                         sec.flags |= (1 << param->u.crypt.idx);
6081                         sec.flags |= SEC_LEVEL;
6082                         sec.level = SEC_LEVEL_1;
6083                 } else if (strcmp(ops->name, "TKIP") == 0) {
6084                         sec.flags |= SEC_LEVEL;
6085                         sec.level = SEC_LEVEL_2;
6086                 } else if (strcmp(ops->name, "CCMP") == 0) {
6087                         sec.flags |= SEC_LEVEL;
6088                         sec.level = SEC_LEVEL_3;
6089                 }
6090         }
6091       done:
6092         if (ieee->set_security)
6093                 ieee->set_security(ieee->dev, &sec);
6094
6095         /* Do not reset port if card is in Managed mode since resetting will
6096          * generate new IEEE 802.11 authentication which may end up in looping
6097          * with IEEE 802.1X.  If your hardware requires a reset after WEP
6098          * configuration (for example... Prism2), implement the reset_port in
6099          * the callbacks structures used to initialize the 802.11 stack. */
6100         if (ieee->reset_on_keychange &&
6101             ieee->iw_mode != IW_MODE_INFRA &&
6102             ieee->reset_port && ieee->reset_port(dev)) {
6103                 IPW_DEBUG_INFO("%s: reset_port failed\n", dev->name);
6104                 param->u.crypt.err = IPW2100_CRYPT_ERR_CARD_CONF_FAILED;
6105                 return -EINVAL;
6106         }
6107
6108         return ret;
6109 }
6110
6111 static int ipw2100_wpa_supplicant(struct net_device *dev, struct iw_point *p)
6112 {
6113
6114         struct ipw2100_param *param;
6115         int ret = 0;
6116
6117         IPW_DEBUG_IOCTL("wpa_supplicant: len=%d\n", p->length);
6118
6119         if (p->length < sizeof(struct ipw2100_param) || !p->pointer)
6120                 return -EINVAL;
6121
6122         param = (struct ipw2100_param *)kmalloc(p->length, GFP_KERNEL);
6123         if (param == NULL)
6124                 return -ENOMEM;
6125
6126         if (copy_from_user(param, p->pointer, p->length)) {
6127                 kfree(param);
6128                 return -EFAULT;
6129         }
6130
6131         switch (param->cmd) {
6132
6133         case IPW2100_CMD_SET_WPA_PARAM:
6134                 ret = ipw2100_wpa_set_param(dev, param->u.wpa_param.name,
6135                                             param->u.wpa_param.value);
6136                 break;
6137
6138         case IPW2100_CMD_SET_WPA_IE:
6139                 ret = ipw2100_wpa_set_wpa_ie(dev, param, p->length);
6140                 break;
6141
6142         case IPW2100_CMD_SET_ENCRYPTION:
6143                 ret = ipw2100_wpa_set_encryption(dev, param, p->length);
6144                 break;
6145
6146         case IPW2100_CMD_MLME:
6147                 ret = ipw2100_wpa_mlme(dev, param->u.mlme.command,
6148                                        param->u.mlme.reason_code);
6149                 break;
6150
6151         default:
6152                 printk(KERN_ERR DRV_NAME
6153                        ": %s: Unknown WPA supplicant request: %d\n", dev->name,
6154                        param->cmd);
6155                 ret = -EOPNOTSUPP;
6156
6157         }
6158
6159         if (ret == 0 && copy_to_user(p->pointer, param, p->length))
6160                 ret = -EFAULT;
6161
6162         kfree(param);
6163         return ret;
6164 }
6165
6166 static int ipw2100_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
6167 {
6168         struct iwreq *wrq = (struct iwreq *)rq;
6169         int ret = -1;
6170         switch (cmd) {
6171         case IPW2100_IOCTL_WPA_SUPPLICANT:
6172                 ret = ipw2100_wpa_supplicant(dev, &wrq->u.data);
6173                 return ret;
6174
6175         default:
6176                 return -EOPNOTSUPP;
6177         }
6178
6179         return -EOPNOTSUPP;
6180 }
6181 #endif                          /* WIRELESS_EXT < 18 */
6182
6183 static void ipw_ethtool_get_drvinfo(struct net_device *dev,
6184                                     struct ethtool_drvinfo *info)
6185 {
6186         struct ipw2100_priv *priv = ieee80211_priv(dev);
6187         char fw_ver[64], ucode_ver[64];
6188
6189         strcpy(info->driver, DRV_NAME);
6190         strcpy(info->version, DRV_VERSION);
6191
6192         ipw2100_get_fwversion(priv, fw_ver, sizeof(fw_ver));
6193         ipw2100_get_ucodeversion(priv, ucode_ver, sizeof(ucode_ver));
6194
6195         snprintf(info->fw_version, sizeof(info->fw_version), "%s:%d:%s",
6196                  fw_ver, priv->eeprom_version, ucode_ver);
6197
6198         strcpy(info->bus_info, pci_name(priv->pci_dev));
6199 }
6200
6201 static u32 ipw2100_ethtool_get_link(struct net_device *dev)
6202 {
6203         struct ipw2100_priv *priv = ieee80211_priv(dev);
6204         return (priv->status & STATUS_ASSOCIATED) ? 1 : 0;
6205 }
6206
6207 static struct ethtool_ops ipw2100_ethtool_ops = {
6208         .get_link = ipw2100_ethtool_get_link,
6209         .get_drvinfo = ipw_ethtool_get_drvinfo,
6210 };
6211
6212 static void ipw2100_hang_check(void *adapter)
6213 {
6214         struct ipw2100_priv *priv = adapter;
6215         unsigned long flags;
6216         u32 rtc = 0xa5a5a5a5;
6217         u32 len = sizeof(rtc);
6218         int restart = 0;
6219
6220         spin_lock_irqsave(&priv->low_lock, flags);
6221
6222         if (priv->fatal_error != 0) {
6223                 /* If fatal_error is set then we need to restart */
6224                 IPW_DEBUG_INFO("%s: Hardware fatal error detected.\n",
6225                                priv->net_dev->name);
6226
6227                 restart = 1;
6228         } else if (ipw2100_get_ordinal(priv, IPW_ORD_RTC_TIME, &rtc, &len) ||
6229                    (rtc == priv->last_rtc)) {
6230                 /* Check if firmware is hung */
6231                 IPW_DEBUG_INFO("%s: Firmware RTC stalled.\n",
6232                                priv->net_dev->name);
6233
6234                 restart = 1;
6235         }
6236
6237         if (restart) {
6238                 /* Kill timer */
6239                 priv->stop_hang_check = 1;
6240                 priv->hangs++;
6241
6242                 /* Restart the NIC */
6243                 schedule_reset(priv);
6244         }
6245
6246         priv->last_rtc = rtc;
6247
6248         if (!priv->stop_hang_check)
6249                 queue_delayed_work(priv->workqueue, &priv->hang_check, HZ / 2);
6250
6251         spin_unlock_irqrestore(&priv->low_lock, flags);
6252 }
6253
6254 static void ipw2100_rf_kill(void *adapter)
6255 {
6256         struct ipw2100_priv *priv = adapter;
6257         unsigned long flags;
6258
6259         spin_lock_irqsave(&priv->low_lock, flags);
6260
6261         if (rf_kill_active(priv)) {
6262                 IPW_DEBUG_RF_KILL("RF Kill active, rescheduling GPIO check\n");
6263                 if (!priv->stop_rf_kill)
6264                         queue_delayed_work(priv->workqueue, &priv->rf_kill, HZ);
6265                 goto exit_unlock;
6266         }
6267
6268         /* RF Kill is now disabled, so bring the device back up */
6269
6270         if (!(priv->status & STATUS_RF_KILL_MASK)) {
6271                 IPW_DEBUG_RF_KILL("HW RF Kill no longer active, restarting "
6272                                   "device\n");
6273                 schedule_reset(priv);
6274         } else
6275                 IPW_DEBUG_RF_KILL("HW RF Kill deactivated.  SW RF Kill still "
6276                                   "enabled\n");
6277
6278       exit_unlock:
6279         spin_unlock_irqrestore(&priv->low_lock, flags);
6280 }
6281
6282 static void ipw2100_irq_tasklet(struct ipw2100_priv *priv);
6283
6284 /* Look into using netdev destructor to shutdown ieee80211? */
6285
6286 static struct net_device *ipw2100_alloc_device(struct pci_dev *pci_dev,
6287                                                void __iomem * base_addr,
6288                                                unsigned long mem_start,
6289                                                unsigned long mem_len)
6290 {
6291         struct ipw2100_priv *priv;
6292         struct net_device *dev;
6293
6294         dev = alloc_ieee80211(sizeof(struct ipw2100_priv));
6295         if (!dev)
6296                 return NULL;
6297         priv = ieee80211_priv(dev);
6298         priv->ieee = netdev_priv(dev);
6299         priv->pci_dev = pci_dev;
6300         priv->net_dev = dev;
6301
6302         priv->ieee->hard_start_xmit = ipw2100_tx;
6303         priv->ieee->set_security = shim__set_security;
6304
6305         priv->ieee->perfect_rssi = -20;
6306         priv->ieee->worst_rssi = -85;
6307
6308         dev->open = ipw2100_open;
6309         dev->stop = ipw2100_close;
6310         dev->init = ipw2100_net_init;
6311 #if WIRELESS_EXT < 18
6312         dev->do_ioctl = ipw2100_ioctl;
6313 #endif
6314         dev->get_stats = ipw2100_stats;
6315         dev->ethtool_ops = &ipw2100_ethtool_ops;
6316         dev->tx_timeout = ipw2100_tx_timeout;
6317         dev->wireless_handlers = &ipw2100_wx_handler_def;
6318         dev->get_wireless_stats = ipw2100_wx_wireless_stats;
6319         dev->set_mac_address = ipw2100_set_address;
6320         dev->watchdog_timeo = 3 * HZ;
6321         dev->irq = 0;
6322
6323         dev->base_addr = (unsigned long)base_addr;
6324         dev->mem_start = mem_start;
6325         dev->mem_end = dev->mem_start + mem_len - 1;
6326
6327         /* NOTE: We don't use the wireless_handlers hook
6328          * in dev as the system will start throwing WX requests
6329          * to us before we're actually initialized and it just
6330          * ends up causing problems.  So, we just handle
6331          * the WX extensions through the ipw2100_ioctl interface */
6332
6333         /* memset() puts everything to 0, so we only have explicitely set
6334          * those values that need to be something else */
6335
6336         /* If power management is turned on, default to AUTO mode */
6337         priv->power_mode = IPW_POWER_AUTO;
6338
6339 #ifdef CONFIG_IPW2100_MONITOR
6340         priv->config |= CFG_CRC_CHECK;
6341 #endif
6342         priv->ieee->wpa_enabled = 0;
6343         priv->ieee->drop_unencrypted = 0;
6344         priv->ieee->privacy_invoked = 0;
6345         priv->ieee->ieee802_1x = 1;
6346
6347         /* Set module parameters */
6348         switch (mode) {
6349         case 1:
6350                 priv->ieee->iw_mode = IW_MODE_ADHOC;
6351                 break;
6352 #ifdef CONFIG_IPW2100_MONITOR
6353         case 2:
6354                 priv->ieee->iw_mode = IW_MODE_MONITOR;
6355                 break;
6356 #endif
6357         default:
6358         case 0:
6359                 priv->ieee->iw_mode = IW_MODE_INFRA;
6360                 break;
6361         }
6362
6363         if (disable == 1)
6364                 priv->status |= STATUS_RF_KILL_SW;
6365
6366         if (channel != 0 &&
6367             ((channel >= REG_MIN_CHANNEL) && (channel <= REG_MAX_CHANNEL))) {
6368                 priv->config |= CFG_STATIC_CHANNEL;
6369                 priv->channel = channel;
6370         }
6371
6372         if (associate)
6373                 priv->config |= CFG_ASSOCIATE;
6374
6375         priv->beacon_interval = DEFAULT_BEACON_INTERVAL;
6376         priv->short_retry_limit = DEFAULT_SHORT_RETRY_LIMIT;
6377         priv->long_retry_limit = DEFAULT_LONG_RETRY_LIMIT;
6378         priv->rts_threshold = DEFAULT_RTS_THRESHOLD | RTS_DISABLED;
6379         priv->frag_threshold = DEFAULT_FTS | FRAG_DISABLED;
6380         priv->tx_power = IPW_TX_POWER_DEFAULT;
6381         priv->tx_rates = DEFAULT_TX_RATES;
6382
6383         strcpy(priv->nick, "ipw2100");
6384
6385         spin_lock_init(&priv->low_lock);
6386         sema_init(&priv->action_sem, 1);
6387         sema_init(&priv->adapter_sem, 1);
6388
6389         init_waitqueue_head(&priv->wait_command_queue);
6390
6391         netif_carrier_off(dev);
6392
6393         INIT_LIST_HEAD(&priv->msg_free_list);
6394         INIT_LIST_HEAD(&priv->msg_pend_list);
6395         INIT_STAT(&priv->msg_free_stat);
6396         INIT_STAT(&priv->msg_pend_stat);
6397
6398         INIT_LIST_HEAD(&priv->tx_free_list);
6399         INIT_LIST_HEAD(&priv->tx_pend_list);
6400         INIT_STAT(&priv->tx_free_stat);
6401         INIT_STAT(&priv->tx_pend_stat);
6402
6403         INIT_LIST_HEAD(&priv->fw_pend_list);
6404         INIT_STAT(&priv->fw_pend_stat);
6405
6406 #ifdef PF_SYNCTHREAD
6407         priv->workqueue = create_workqueue(DRV_NAME, 0);
6408 #else
6409         priv->workqueue = create_workqueue(DRV_NAME);
6410 #endif
6411         INIT_WORK(&priv->reset_work,
6412                   (void (*)(void *))ipw2100_reset_adapter, priv);
6413         INIT_WORK(&priv->security_work,
6414                   (void (*)(void *))ipw2100_security_work, priv);
6415         INIT_WORK(&priv->wx_event_work,
6416                   (void (*)(void *))ipw2100_wx_event_work, priv);
6417         INIT_WORK(&priv->hang_check, ipw2100_hang_check, priv);
6418         INIT_WORK(&priv->rf_kill, ipw2100_rf_kill, priv);
6419
6420         tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long))
6421                      ipw2100_irq_tasklet, (unsigned long)priv);
6422
6423         /* NOTE:  We do not start the deferred work for status checks yet */
6424         priv->stop_rf_kill = 1;
6425         priv->stop_hang_check = 1;
6426
6427         return dev;
6428 }
6429
6430 static int ipw2100_pci_init_one(struct pci_dev *pci_dev,
6431                                 const struct pci_device_id *ent)
6432 {
6433         unsigned long mem_start, mem_len, mem_flags;
6434         void __iomem *base_addr = NULL;
6435         struct net_device *dev = NULL;
6436         struct ipw2100_priv *priv = NULL;
6437         int err = 0;
6438         int registered = 0;
6439         u32 val;
6440
6441         IPW_DEBUG_INFO("enter\n");
6442
6443         mem_start = pci_resource_start(pci_dev, 0);
6444         mem_len = pci_resource_len(pci_dev, 0);
6445         mem_flags = pci_resource_flags(pci_dev, 0);
6446
6447         if ((mem_flags & IORESOURCE_MEM) != IORESOURCE_MEM) {
6448                 IPW_DEBUG_INFO("weird - resource type is not memory\n");
6449                 err = -ENODEV;
6450                 goto fail;
6451         }
6452
6453         base_addr = ioremap_nocache(mem_start, mem_len);
6454         if (!base_addr) {
6455                 printk(KERN_WARNING DRV_NAME
6456                        "Error calling ioremap_nocache.\n");
6457                 err = -EIO;
6458                 goto fail;
6459         }
6460
6461         /* allocate and initialize our net_device */
6462         dev = ipw2100_alloc_device(pci_dev, base_addr, mem_start, mem_len);
6463         if (!dev) {
6464                 printk(KERN_WARNING DRV_NAME
6465                        "Error calling ipw2100_alloc_device.\n");
6466                 err = -ENOMEM;
6467                 goto fail;
6468         }
6469
6470         /* set up PCI mappings for device */
6471         err = pci_enable_device(pci_dev);
6472         if (err) {
6473                 printk(KERN_WARNING DRV_NAME
6474                        "Error calling pci_enable_device.\n");
6475                 return err;
6476         }
6477
6478         priv = ieee80211_priv(dev);
6479
6480         pci_set_master(pci_dev);
6481         pci_set_drvdata(pci_dev, priv);
6482
6483         err = pci_set_dma_mask(pci_dev, DMA_32BIT_MASK);
6484         if (err) {
6485                 printk(KERN_WARNING DRV_NAME
6486                        "Error calling pci_set_dma_mask.\n");
6487                 pci_disable_device(pci_dev);
6488                 return err;
6489         }
6490
6491         err = pci_request_regions(pci_dev, DRV_NAME);
6492         if (err) {
6493                 printk(KERN_WARNING DRV_NAME
6494                        "Error calling pci_request_regions.\n");
6495                 pci_disable_device(pci_dev);
6496                 return err;
6497         }
6498
6499         /* We disable the RETRY_TIMEOUT register (0x41) to keep
6500          * PCI Tx retries from interfering with C3 CPU state */
6501         pci_read_config_dword(pci_dev, 0x40, &val);
6502         if ((val & 0x0000ff00) != 0)
6503                 pci_write_config_dword(pci_dev, 0x40, val & 0xffff00ff);
6504
6505         pci_set_power_state(pci_dev, PCI_D0);
6506
6507         if (!ipw2100_hw_is_adapter_in_system(dev)) {
6508                 printk(KERN_WARNING DRV_NAME
6509                        "Device not found via register read.\n");
6510                 err = -ENODEV;
6511                 goto fail;
6512         }
6513
6514         SET_NETDEV_DEV(dev, &pci_dev->dev);
6515
6516         /* Force interrupts to be shut off on the device */
6517         priv->status |= STATUS_INT_ENABLED;
6518         ipw2100_disable_interrupts(priv);
6519
6520         /* Allocate and initialize the Tx/Rx queues and lists */
6521         if (ipw2100_queues_allocate(priv)) {
6522                 printk(KERN_WARNING DRV_NAME
6523                        "Error calilng ipw2100_queues_allocate.\n");
6524                 err = -ENOMEM;
6525                 goto fail;
6526         }
6527         ipw2100_queues_initialize(priv);
6528
6529         err = request_irq(pci_dev->irq,
6530                           ipw2100_interrupt, SA_SHIRQ, dev->name, priv);
6531         if (err) {
6532                 printk(KERN_WARNING DRV_NAME
6533                        "Error calling request_irq: %d.\n", pci_dev->irq);
6534                 goto fail;
6535         }
6536         dev->irq = pci_dev->irq;
6537
6538         IPW_DEBUG_INFO("Attempting to register device...\n");
6539
6540         SET_MODULE_OWNER(dev);
6541
6542         printk(KERN_INFO DRV_NAME
6543                ": Detected Intel PRO/Wireless 2100 Network Connection\n");
6544
6545         /* Bring up the interface.  Pre 0.46, after we registered the
6546          * network device we would call ipw2100_up.  This introduced a race
6547          * condition with newer hotplug configurations (network was coming
6548          * up and making calls before the device was initialized).
6549          *
6550          * If we called ipw2100_up before we registered the device, then the
6551          * device name wasn't registered.  So, we instead use the net_dev->init
6552          * member to call a function that then just turns and calls ipw2100_up.
6553          * net_dev->init is called after name allocation but before the
6554          * notifier chain is called */
6555         down(&priv->action_sem);
6556         err = register_netdev(dev);
6557         if (err) {
6558                 printk(KERN_WARNING DRV_NAME
6559                        "Error calling register_netdev.\n");
6560                 goto fail_unlock;
6561         }
6562         registered = 1;
6563
6564         IPW_DEBUG_INFO("%s: Bound to %s\n", dev->name, pci_name(pci_dev));
6565
6566         /* perform this after register_netdev so that dev->name is set */
6567         sysfs_create_group(&pci_dev->dev.kobj, &ipw2100_attribute_group);
6568
6569         /* If the RF Kill switch is disabled, go ahead and complete the
6570          * startup sequence */
6571         if (!(priv->status & STATUS_RF_KILL_MASK)) {
6572                 /* Enable the adapter - sends HOST_COMPLETE */
6573                 if (ipw2100_enable_adapter(priv)) {
6574                         printk(KERN_WARNING DRV_NAME
6575                                ": %s: failed in call to enable adapter.\n",
6576                                priv->net_dev->name);
6577                         ipw2100_hw_stop_adapter(priv);
6578                         err = -EIO;
6579                         goto fail_unlock;
6580                 }
6581
6582                 /* Start a scan . . . */
6583                 ipw2100_set_scan_options(priv);
6584                 ipw2100_start_scan(priv);
6585         }
6586
6587         IPW_DEBUG_INFO("exit\n");
6588
6589         priv->status |= STATUS_INITIALIZED;
6590
6591         up(&priv->action_sem);
6592
6593         return 0;
6594
6595       fail_unlock:
6596         up(&priv->action_sem);
6597
6598       fail:
6599         if (dev) {
6600                 if (registered)
6601                         unregister_netdev(dev);
6602
6603                 ipw2100_hw_stop_adapter(priv);
6604
6605                 ipw2100_disable_interrupts(priv);
6606
6607                 if (dev->irq)
6608                         free_irq(dev->irq, priv);
6609
6610                 ipw2100_kill_workqueue(priv);
6611
6612                 /* These are safe to call even if they weren't allocated */
6613                 ipw2100_queues_free(priv);
6614                 sysfs_remove_group(&pci_dev->dev.kobj,
6615                                    &ipw2100_attribute_group);
6616
6617                 free_ieee80211(dev);
6618                 pci_set_drvdata(pci_dev, NULL);
6619         }
6620
6621         if (base_addr)
6622                 iounmap(base_addr);
6623
6624         pci_release_regions(pci_dev);
6625         pci_disable_device(pci_dev);
6626
6627         return err;
6628 }
6629
6630 static void __devexit ipw2100_pci_remove_one(struct pci_dev *pci_dev)
6631 {
6632         struct ipw2100_priv *priv = pci_get_drvdata(pci_dev);
6633         struct net_device *dev;
6634
6635         if (priv) {
6636                 down(&priv->action_sem);
6637
6638                 priv->status &= ~STATUS_INITIALIZED;
6639
6640                 dev = priv->net_dev;
6641                 sysfs_remove_group(&pci_dev->dev.kobj,
6642                                    &ipw2100_attribute_group);
6643
6644 #ifdef CONFIG_PM
6645                 if (ipw2100_firmware.version)
6646                         ipw2100_release_firmware(priv, &ipw2100_firmware);
6647 #endif
6648                 /* Take down the hardware */
6649                 ipw2100_down(priv);
6650
6651                 /* Release the semaphore so that the network subsystem can
6652                  * complete any needed calls into the driver... */
6653                 up(&priv->action_sem);
6654
6655                 /* Unregister the device first - this results in close()
6656                  * being called if the device is open.  If we free storage
6657                  * first, then close() will crash. */
6658                 unregister_netdev(dev);
6659
6660                 /* ipw2100_down will ensure that there is no more pending work
6661                  * in the workqueue's, so we can safely remove them now. */
6662                 ipw2100_kill_workqueue(priv);
6663
6664                 ipw2100_queues_free(priv);
6665
6666                 /* Free potential debugging firmware snapshot */
6667                 ipw2100_snapshot_free(priv);
6668
6669                 if (dev->irq)
6670                         free_irq(dev->irq, priv);
6671
6672                 if (dev->base_addr)
6673                         iounmap((void __iomem *)dev->base_addr);
6674
6675                 free_ieee80211(dev);
6676         }
6677
6678         pci_release_regions(pci_dev);
6679         pci_disable_device(pci_dev);
6680
6681         IPW_DEBUG_INFO("exit\n");
6682 }
6683
6684 #ifdef CONFIG_PM
6685 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,11)
6686 static int ipw2100_suspend(struct pci_dev *pci_dev, u32 state)
6687 #else
6688 static int ipw2100_suspend(struct pci_dev *pci_dev, pm_message_t state)
6689 #endif
6690 {
6691         struct ipw2100_priv *priv = pci_get_drvdata(pci_dev);
6692         struct net_device *dev = priv->net_dev;
6693
6694         IPW_DEBUG_INFO("%s: Going into suspend...\n", dev->name);
6695
6696         down(&priv->action_sem);
6697         if (priv->status & STATUS_INITIALIZED) {
6698                 /* Take down the device; powers it off, etc. */
6699                 ipw2100_down(priv);
6700         }
6701
6702         /* Remove the PRESENT state of the device */
6703         netif_device_detach(dev);
6704
6705         pci_save_state(pci_dev);
6706         pci_disable_device(pci_dev);
6707         pci_set_power_state(pci_dev, PCI_D3hot);
6708
6709         up(&priv->action_sem);
6710
6711         return 0;
6712 }
6713
6714 static int ipw2100_resume(struct pci_dev *pci_dev)
6715 {
6716         struct ipw2100_priv *priv = pci_get_drvdata(pci_dev);
6717         struct net_device *dev = priv->net_dev;
6718         u32 val;
6719
6720         if (IPW2100_PM_DISABLED)
6721                 return 0;
6722
6723         down(&priv->action_sem);
6724
6725         IPW_DEBUG_INFO("%s: Coming out of suspend...\n", dev->name);
6726
6727         pci_set_power_state(pci_dev, PCI_D0);
6728         pci_enable_device(pci_dev);
6729         pci_restore_state(pci_dev);
6730
6731         /*
6732          * Suspend/Resume resets the PCI configuration space, so we have to
6733          * re-disable the RETRY_TIMEOUT register (0x41) to keep PCI Tx retries
6734          * from interfering with C3 CPU state. pci_restore_state won't help
6735          * here since it only restores the first 64 bytes pci config header.
6736          */
6737         pci_read_config_dword(pci_dev, 0x40, &val);
6738         if ((val & 0x0000ff00) != 0)
6739                 pci_write_config_dword(pci_dev, 0x40, val & 0xffff00ff);
6740
6741         /* Set the device back into the PRESENT state; this will also wake
6742          * the queue of needed */
6743         netif_device_attach(dev);
6744
6745         /* Bring the device back up */
6746         if (!(priv->status & STATUS_RF_KILL_SW))
6747                 ipw2100_up(priv, 0);
6748
6749         up(&priv->action_sem);
6750
6751         return 0;
6752 }
6753 #endif
6754
6755 #define IPW2100_DEV_ID(x) { PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, x }
6756
6757 static struct pci_device_id ipw2100_pci_id_table[] __devinitdata = {
6758         IPW2100_DEV_ID(0x2520), /* IN 2100A mPCI 3A */
6759         IPW2100_DEV_ID(0x2521), /* IN 2100A mPCI 3B */
6760         IPW2100_DEV_ID(0x2524), /* IN 2100A mPCI 3B */
6761         IPW2100_DEV_ID(0x2525), /* IN 2100A mPCI 3B */
6762         IPW2100_DEV_ID(0x2526), /* IN 2100A mPCI Gen A3 */
6763         IPW2100_DEV_ID(0x2522), /* IN 2100 mPCI 3B */
6764         IPW2100_DEV_ID(0x2523), /* IN 2100 mPCI 3A */
6765         IPW2100_DEV_ID(0x2527), /* IN 2100 mPCI 3B */
6766         IPW2100_DEV_ID(0x2528), /* IN 2100 mPCI 3B */
6767         IPW2100_DEV_ID(0x2529), /* IN 2100 mPCI 3B */
6768         IPW2100_DEV_ID(0x252B), /* IN 2100 mPCI 3A */
6769         IPW2100_DEV_ID(0x252C), /* IN 2100 mPCI 3A */
6770         IPW2100_DEV_ID(0x252D), /* IN 2100 mPCI 3A */
6771
6772         IPW2100_DEV_ID(0x2550), /* IB 2100A mPCI 3B */
6773         IPW2100_DEV_ID(0x2551), /* IB 2100 mPCI 3B */
6774         IPW2100_DEV_ID(0x2553), /* IB 2100 mPCI 3B */
6775         IPW2100_DEV_ID(0x2554), /* IB 2100 mPCI 3B */
6776         IPW2100_DEV_ID(0x2555), /* IB 2100 mPCI 3B */
6777
6778         IPW2100_DEV_ID(0x2560), /* DE 2100A mPCI 3A */
6779         IPW2100_DEV_ID(0x2562), /* DE 2100A mPCI 3A */
6780         IPW2100_DEV_ID(0x2563), /* DE 2100A mPCI 3A */
6781         IPW2100_DEV_ID(0x2561), /* DE 2100 mPCI 3A */
6782         IPW2100_DEV_ID(0x2565), /* DE 2100 mPCI 3A */
6783         IPW2100_DEV_ID(0x2566), /* DE 2100 mPCI 3A */
6784         IPW2100_DEV_ID(0x2567), /* DE 2100 mPCI 3A */
6785
6786         IPW2100_DEV_ID(0x2570), /* GA 2100 mPCI 3B */
6787
6788         IPW2100_DEV_ID(0x2580), /* TO 2100A mPCI 3B */
6789         IPW2100_DEV_ID(0x2582), /* TO 2100A mPCI 3B */
6790         IPW2100_DEV_ID(0x2583), /* TO 2100A mPCI 3B */
6791         IPW2100_DEV_ID(0x2581), /* TO 2100 mPCI 3B */
6792         IPW2100_DEV_ID(0x2585), /* TO 2100 mPCI 3B */
6793         IPW2100_DEV_ID(0x2586), /* TO 2100 mPCI 3B */
6794         IPW2100_DEV_ID(0x2587), /* TO 2100 mPCI 3B */
6795
6796         IPW2100_DEV_ID(0x2590), /* SO 2100A mPCI 3B */
6797         IPW2100_DEV_ID(0x2592), /* SO 2100A mPCI 3B */
6798         IPW2100_DEV_ID(0x2591), /* SO 2100 mPCI 3B */
6799         IPW2100_DEV_ID(0x2593), /* SO 2100 mPCI 3B */
6800         IPW2100_DEV_ID(0x2596), /* SO 2100 mPCI 3B */
6801         IPW2100_DEV_ID(0x2598), /* SO 2100 mPCI 3B */
6802
6803         IPW2100_DEV_ID(0x25A0), /* HP 2100 mPCI 3B */
6804         {0,},
6805 };
6806
6807 MODULE_DEVICE_TABLE(pci, ipw2100_pci_id_table);
6808
6809 static struct pci_driver ipw2100_pci_driver = {
6810         .name = DRV_NAME,
6811         .id_table = ipw2100_pci_id_table,
6812         .probe = ipw2100_pci_init_one,
6813         .remove = __devexit_p(ipw2100_pci_remove_one),
6814 #ifdef CONFIG_PM
6815         .suspend = ipw2100_suspend,
6816         .resume = ipw2100_resume,
6817 #endif
6818 };
6819
6820 /**
6821  * Initialize the ipw2100 driver/module
6822  *
6823  * @returns 0 if ok, < 0 errno node con error.
6824  *
6825  * Note: we cannot init the /proc stuff until the PCI driver is there,
6826  * or we risk an unlikely race condition on someone accessing
6827  * uninitialized data in the PCI dev struct through /proc.
6828  */
6829 static int __init ipw2100_init(void)
6830 {
6831         int ret;
6832
6833         printk(KERN_INFO DRV_NAME ": %s, %s\n", DRV_DESCRIPTION, DRV_VERSION);
6834         printk(KERN_INFO DRV_NAME ": %s\n", DRV_COPYRIGHT);
6835
6836         ret = pci_module_init(&ipw2100_pci_driver);
6837
6838 #ifdef CONFIG_IPW_DEBUG
6839         ipw2100_debug_level = debug;
6840         driver_create_file(&ipw2100_pci_driver.driver,
6841                            &driver_attr_debug_level);
6842 #endif
6843
6844         return ret;
6845 }
6846
6847 /**
6848  * Cleanup ipw2100 driver registration
6849  */
6850 static void __exit ipw2100_exit(void)
6851 {
6852         /* FIXME: IPG: check that we have no instances of the devices open */
6853 #ifdef CONFIG_IPW_DEBUG
6854         driver_remove_file(&ipw2100_pci_driver.driver,
6855                            &driver_attr_debug_level);
6856 #endif
6857         pci_unregister_driver(&ipw2100_pci_driver);
6858 }
6859
6860 module_init(ipw2100_init);
6861 module_exit(ipw2100_exit);
6862
6863 #define WEXT_USECHANNELS 1
6864
6865 static const long ipw2100_frequencies[] = {
6866         2412, 2417, 2422, 2427,
6867         2432, 2437, 2442, 2447,
6868         2452, 2457, 2462, 2467,
6869         2472, 2484
6870 };
6871
6872 #define FREQ_COUNT (sizeof(ipw2100_frequencies) / \
6873                     sizeof(ipw2100_frequencies[0]))
6874
6875 static const long ipw2100_rates_11b[] = {
6876         1000000,
6877         2000000,
6878         5500000,
6879         11000000
6880 };
6881
6882 #define RATE_COUNT (sizeof(ipw2100_rates_11b) / sizeof(ipw2100_rates_11b[0]))
6883
6884 static int ipw2100_wx_get_name(struct net_device *dev,
6885                                struct iw_request_info *info,
6886                                union iwreq_data *wrqu, char *extra)
6887 {
6888         /*
6889          * This can be called at any time.  No action lock required
6890          */
6891
6892         struct ipw2100_priv *priv = ieee80211_priv(dev);
6893         if (!(priv->status & STATUS_ASSOCIATED))
6894                 strcpy(wrqu->name, "unassociated");
6895         else
6896                 snprintf(wrqu->name, IFNAMSIZ, "IEEE 802.11b");
6897
6898         IPW_DEBUG_WX("Name: %s\n", wrqu->name);
6899         return 0;
6900 }
6901
6902 static int ipw2100_wx_set_freq(struct net_device *dev,
6903                                struct iw_request_info *info,
6904                                union iwreq_data *wrqu, char *extra)
6905 {
6906         struct ipw2100_priv *priv = ieee80211_priv(dev);
6907         struct iw_freq *fwrq = &wrqu->freq;
6908         int err = 0;
6909
6910         if (priv->ieee->iw_mode == IW_MODE_INFRA)
6911                 return -EOPNOTSUPP;
6912
6913         down(&priv->action_sem);
6914         if (!(priv->status & STATUS_INITIALIZED)) {
6915                 err = -EIO;
6916                 goto done;
6917         }
6918
6919         /* if setting by freq convert to channel */
6920         if (fwrq->e == 1) {
6921                 if ((fwrq->m >= (int)2.412e8 && fwrq->m <= (int)2.487e8)) {
6922                         int f = fwrq->m / 100000;
6923                         int c = 0;
6924
6925                         while ((c < REG_MAX_CHANNEL) &&
6926                                (f != ipw2100_frequencies[c]))
6927                                 c++;
6928
6929                         /* hack to fall through */
6930                         fwrq->e = 0;
6931                         fwrq->m = c + 1;
6932                 }
6933         }
6934
6935         if (fwrq->e > 0 || fwrq->m > 1000) {
6936                 err = -EOPNOTSUPP;
6937                 goto done;
6938         } else {                /* Set the channel */
6939                 IPW_DEBUG_WX("SET Freq/Channel -> %d \n", fwrq->m);
6940                 err = ipw2100_set_channel(priv, fwrq->m, 0);
6941         }
6942
6943       done:
6944         up(&priv->action_sem);
6945         return err;
6946 }
6947
6948 static int ipw2100_wx_get_freq(struct net_device *dev,
6949                                struct iw_request_info *info,
6950                                union iwreq_data *wrqu, char *extra)
6951 {
6952         /*
6953          * This can be called at any time.  No action lock required
6954          */
6955
6956         struct ipw2100_priv *priv = ieee80211_priv(dev);
6957
6958         wrqu->freq.e = 0;
6959
6960         /* If we are associated, trying to associate, or have a statically
6961          * configured CHANNEL then return that; otherwise return ANY */
6962         if (priv->config & CFG_STATIC_CHANNEL ||
6963             priv->status & STATUS_ASSOCIATED)
6964                 wrqu->freq.m = priv->channel;
6965         else
6966                 wrqu->freq.m = 0;
6967
6968         IPW_DEBUG_WX("GET Freq/Channel -> %d \n", priv->channel);
6969         return 0;
6970
6971 }
6972
6973 static int ipw2100_wx_set_mode(struct net_device *dev,
6974                                struct iw_request_info *info,
6975                                union iwreq_data *wrqu, char *extra)
6976 {
6977         struct ipw2100_priv *priv = ieee80211_priv(dev);
6978         int err = 0;
6979
6980         IPW_DEBUG_WX("SET Mode -> %d \n", wrqu->mode);
6981
6982         if (wrqu->mode == priv->ieee->iw_mode)
6983                 return 0;
6984
6985         down(&priv->action_sem);
6986         if (!(priv->status & STATUS_INITIALIZED)) {
6987                 err = -EIO;
6988                 goto done;
6989         }
6990
6991         switch (wrqu->mode) {
6992 #ifdef CONFIG_IPW2100_MONITOR
6993         case IW_MODE_MONITOR:
6994                 err = ipw2100_switch_mode(priv, IW_MODE_MONITOR);
6995                 break;
6996 #endif                          /* CONFIG_IPW2100_MONITOR */
6997         case IW_MODE_ADHOC:
6998                 err = ipw2100_switch_mode(priv, IW_MODE_ADHOC);
6999                 break;
7000         case IW_MODE_INFRA:
7001         case IW_MODE_AUTO:
7002         default:
7003                 err = ipw2100_switch_mode(priv, IW_MODE_INFRA);
7004                 break;
7005         }
7006
7007       done:
7008         up(&priv->action_sem);
7009         return err;
7010 }
7011
7012 static int ipw2100_wx_get_mode(struct net_device *dev,
7013                                struct iw_request_info *info,
7014                                union iwreq_data *wrqu, char *extra)
7015 {
7016         /*
7017          * This can be called at any time.  No action lock required
7018          */
7019
7020         struct ipw2100_priv *priv = ieee80211_priv(dev);
7021
7022         wrqu->mode = priv->ieee->iw_mode;
7023         IPW_DEBUG_WX("GET Mode -> %d\n", wrqu->mode);
7024
7025         return 0;
7026 }
7027
7028 #define POWER_MODES 5
7029
7030 /* Values are in microsecond */
7031 static const s32 timeout_duration[POWER_MODES] = {
7032         350000,
7033         250000,
7034         75000,
7035         37000,
7036         25000,
7037 };
7038
7039 static const s32 period_duration[POWER_MODES] = {
7040         400000,
7041         700000,
7042         1000000,
7043         1000000,
7044         1000000
7045 };
7046
7047 static int ipw2100_wx_get_range(struct net_device *dev,
7048                                 struct iw_request_info *info,
7049                                 union iwreq_data *wrqu, char *extra)
7050 {
7051         /*
7052          * This can be called at any time.  No action lock required
7053          */
7054
7055         struct ipw2100_priv *priv = ieee80211_priv(dev);
7056         struct iw_range *range = (struct iw_range *)extra;
7057         u16 val;
7058         int i, level;
7059
7060         wrqu->data.length = sizeof(*range);
7061         memset(range, 0, sizeof(*range));
7062
7063         /* Let's try to keep this struct in the same order as in
7064          * linux/include/wireless.h
7065          */
7066
7067         /* TODO: See what values we can set, and remove the ones we can't
7068          * set, or fill them with some default data.
7069          */
7070
7071         /* ~5 Mb/s real (802.11b) */
7072         range->throughput = 5 * 1000 * 1000;
7073
7074 //      range->sensitivity;     /* signal level threshold range */
7075
7076         range->max_qual.qual = 100;
7077         /* TODO: Find real max RSSI and stick here */
7078         range->max_qual.level = 0;
7079         range->max_qual.noise = 0;
7080         range->max_qual.updated = 7;    /* Updated all three */
7081
7082         range->avg_qual.qual = 70;      /* > 8% missed beacons is 'bad' */
7083         /* TODO: Find real 'good' to 'bad' threshol value for RSSI */
7084         range->avg_qual.level = 20 + IPW2100_RSSI_TO_DBM;
7085         range->avg_qual.noise = 0;
7086         range->avg_qual.updated = 7;    /* Updated all three */
7087
7088         range->num_bitrates = RATE_COUNT;
7089
7090         for (i = 0; i < RATE_COUNT && i < IW_MAX_BITRATES; i++) {
7091                 range->bitrate[i] = ipw2100_rates_11b[i];
7092         }
7093
7094         range->min_rts = MIN_RTS_THRESHOLD;
7095         range->max_rts = MAX_RTS_THRESHOLD;
7096         range->min_frag = MIN_FRAG_THRESHOLD;
7097         range->max_frag = MAX_FRAG_THRESHOLD;
7098
7099         range->min_pmp = period_duration[0];    /* Minimal PM period */
7100         range->max_pmp = period_duration[POWER_MODES - 1];      /* Maximal PM period */
7101         range->min_pmt = timeout_duration[POWER_MODES - 1];     /* Minimal PM timeout */
7102         range->max_pmt = timeout_duration[0];   /* Maximal PM timeout */
7103
7104         /* How to decode max/min PM period */
7105         range->pmp_flags = IW_POWER_PERIOD;
7106         /* How to decode max/min PM period */
7107         range->pmt_flags = IW_POWER_TIMEOUT;
7108         /* What PM options are supported */
7109         range->pm_capa = IW_POWER_TIMEOUT | IW_POWER_PERIOD;
7110
7111         range->encoding_size[0] = 5;
7112         range->encoding_size[1] = 13;   /* Different token sizes */
7113         range->num_encoding_sizes = 2;  /* Number of entry in the list */
7114         range->max_encoding_tokens = WEP_KEYS;  /* Max number of tokens */
7115 //      range->encoding_login_index;            /* token index for login token */
7116
7117         if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
7118                 range->txpower_capa = IW_TXPOW_DBM;
7119                 range->num_txpower = IW_MAX_TXPOWER;
7120                 for (i = 0, level = (IPW_TX_POWER_MAX_DBM * 16);
7121                      i < IW_MAX_TXPOWER;
7122                      i++, level -=
7123                      ((IPW_TX_POWER_MAX_DBM -
7124                        IPW_TX_POWER_MIN_DBM) * 16) / (IW_MAX_TXPOWER - 1))
7125                         range->txpower[i] = level / 16;
7126         } else {
7127                 range->txpower_capa = 0;
7128                 range->num_txpower = 0;
7129         }
7130
7131         /* Set the Wireless Extension versions */
7132         range->we_version_compiled = WIRELESS_EXT;
7133         range->we_version_source = 16;
7134
7135 //      range->retry_capa;      /* What retry options are supported */
7136 //      range->retry_flags;     /* How to decode max/min retry limit */
7137 //      range->r_time_flags;    /* How to decode max/min retry life */
7138 //      range->min_retry;       /* Minimal number of retries */
7139 //      range->max_retry;       /* Maximal number of retries */
7140 //      range->min_r_time;      /* Minimal retry lifetime */
7141 //      range->max_r_time;      /* Maximal retry lifetime */
7142
7143         range->num_channels = FREQ_COUNT;
7144
7145         val = 0;
7146         for (i = 0; i < FREQ_COUNT; i++) {
7147                 // TODO: Include only legal frequencies for some countries
7148 //              if (local->channel_mask & (1 << i)) {
7149                 range->freq[val].i = i + 1;
7150                 range->freq[val].m = ipw2100_frequencies[i] * 100000;
7151                 range->freq[val].e = 1;
7152                 val++;
7153 //              }
7154                 if (val == IW_MAX_FREQUENCIES)
7155                         break;
7156         }
7157         range->num_frequency = val;
7158
7159         IPW_DEBUG_WX("GET Range\n");
7160
7161         return 0;
7162 }
7163
7164 static int ipw2100_wx_set_wap(struct net_device *dev,
7165                               struct iw_request_info *info,
7166                               union iwreq_data *wrqu, char *extra)
7167 {
7168         struct ipw2100_priv *priv = ieee80211_priv(dev);
7169         int err = 0;
7170
7171         static const unsigned char any[] = {
7172                 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
7173         };
7174         static const unsigned char off[] = {
7175                 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
7176         };
7177
7178         // sanity checks
7179         if (wrqu->ap_addr.sa_family != ARPHRD_ETHER)
7180                 return -EINVAL;
7181
7182         down(&priv->action_sem);
7183         if (!(priv->status & STATUS_INITIALIZED)) {
7184                 err = -EIO;
7185                 goto done;
7186         }
7187
7188         if (!memcmp(any, wrqu->ap_addr.sa_data, ETH_ALEN) ||
7189             !memcmp(off, wrqu->ap_addr.sa_data, ETH_ALEN)) {
7190                 /* we disable mandatory BSSID association */
7191                 IPW_DEBUG_WX("exit - disable mandatory BSSID\n");
7192                 priv->config &= ~CFG_STATIC_BSSID;
7193                 err = ipw2100_set_mandatory_bssid(priv, NULL, 0);
7194                 goto done;
7195         }
7196
7197         priv->config |= CFG_STATIC_BSSID;
7198         memcpy(priv->mandatory_bssid_mac, wrqu->ap_addr.sa_data, ETH_ALEN);
7199
7200         err = ipw2100_set_mandatory_bssid(priv, wrqu->ap_addr.sa_data, 0);
7201
7202         IPW_DEBUG_WX("SET BSSID -> %02X:%02X:%02X:%02X:%02X:%02X\n",
7203                      wrqu->ap_addr.sa_data[0] & 0xff,
7204                      wrqu->ap_addr.sa_data[1] & 0xff,
7205                      wrqu->ap_addr.sa_data[2] & 0xff,
7206                      wrqu->ap_addr.sa_data[3] & 0xff,
7207                      wrqu->ap_addr.sa_data[4] & 0xff,
7208                      wrqu->ap_addr.sa_data[5] & 0xff);
7209
7210       done:
7211         up(&priv->action_sem);
7212         return err;
7213 }
7214
7215 static int ipw2100_wx_get_wap(struct net_device *dev,
7216                               struct iw_request_info *info,
7217                               union iwreq_data *wrqu, char *extra)
7218 {
7219         /*
7220          * This can be called at any time.  No action lock required
7221          */
7222
7223         struct ipw2100_priv *priv = ieee80211_priv(dev);
7224
7225         /* If we are associated, trying to associate, or have a statically
7226          * configured BSSID then return that; otherwise return ANY */
7227         if (priv->config & CFG_STATIC_BSSID || priv->status & STATUS_ASSOCIATED) {
7228                 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
7229                 memcpy(wrqu->ap_addr.sa_data, priv->bssid, ETH_ALEN);
7230         } else
7231                 memset(wrqu->ap_addr.sa_data, 0, ETH_ALEN);
7232
7233         IPW_DEBUG_WX("Getting WAP BSSID: " MAC_FMT "\n",
7234                      MAC_ARG(wrqu->ap_addr.sa_data));
7235         return 0;
7236 }
7237
7238 static int ipw2100_wx_set_essid(struct net_device *dev,
7239                                 struct iw_request_info *info,
7240                                 union iwreq_data *wrqu, char *extra)
7241 {
7242         struct ipw2100_priv *priv = ieee80211_priv(dev);
7243         char *essid = "";       /* ANY */
7244         int length = 0;
7245         int err = 0;
7246
7247         down(&priv->action_sem);
7248         if (!(priv->status & STATUS_INITIALIZED)) {
7249                 err = -EIO;
7250                 goto done;
7251         }
7252
7253         if (wrqu->essid.flags && wrqu->essid.length) {
7254                 length = wrqu->essid.length - 1;
7255                 essid = extra;
7256         }
7257
7258         if (length == 0) {
7259                 IPW_DEBUG_WX("Setting ESSID to ANY\n");
7260                 priv->config &= ~CFG_STATIC_ESSID;
7261                 err = ipw2100_set_essid(priv, NULL, 0, 0);
7262                 goto done;
7263         }
7264
7265         length = min(length, IW_ESSID_MAX_SIZE);
7266
7267         priv->config |= CFG_STATIC_ESSID;
7268
7269         if (priv->essid_len == length && !memcmp(priv->essid, extra, length)) {
7270                 IPW_DEBUG_WX("ESSID set to current ESSID.\n");
7271                 err = 0;
7272                 goto done;
7273         }
7274
7275         IPW_DEBUG_WX("Setting ESSID: '%s' (%d)\n", escape_essid(essid, length),
7276                      length);
7277
7278         priv->essid_len = length;
7279         memcpy(priv->essid, essid, priv->essid_len);
7280
7281         err = ipw2100_set_essid(priv, essid, length, 0);
7282
7283       done:
7284         up(&priv->action_sem);
7285         return err;
7286 }
7287
7288 static int ipw2100_wx_get_essid(struct net_device *dev,
7289                                 struct iw_request_info *info,
7290                                 union iwreq_data *wrqu, char *extra)
7291 {
7292         /*
7293          * This can be called at any time.  No action lock required
7294          */
7295
7296         struct ipw2100_priv *priv = ieee80211_priv(dev);
7297
7298         /* If we are associated, trying to associate, or have a statically
7299          * configured ESSID then return that; otherwise return ANY */
7300         if (priv->config & CFG_STATIC_ESSID || priv->status & STATUS_ASSOCIATED) {
7301                 IPW_DEBUG_WX("Getting essid: '%s'\n",
7302                              escape_essid(priv->essid, priv->essid_len));
7303                 memcpy(extra, priv->essid, priv->essid_len);
7304                 wrqu->essid.length = priv->essid_len;
7305                 wrqu->essid.flags = 1;  /* active */
7306         } else {
7307                 IPW_DEBUG_WX("Getting essid: ANY\n");
7308                 wrqu->essid.length = 0;
7309                 wrqu->essid.flags = 0;  /* active */
7310         }
7311
7312         return 0;
7313 }
7314
7315 static int ipw2100_wx_set_nick(struct net_device *dev,
7316                                struct iw_request_info *info,
7317                                union iwreq_data *wrqu, char *extra)
7318 {
7319         /*
7320          * This can be called at any time.  No action lock required
7321          */
7322
7323         struct ipw2100_priv *priv = ieee80211_priv(dev);
7324
7325         if (wrqu->data.length > IW_ESSID_MAX_SIZE)
7326                 return -E2BIG;
7327
7328         wrqu->data.length = min((size_t) wrqu->data.length, sizeof(priv->nick));
7329         memset(priv->nick, 0, sizeof(priv->nick));
7330         memcpy(priv->nick, extra, wrqu->data.length);
7331
7332         IPW_DEBUG_WX("SET Nickname -> %s \n", priv->nick);
7333
7334         return 0;
7335 }
7336
7337 static int ipw2100_wx_get_nick(struct net_device *dev,
7338                                struct iw_request_info *info,
7339                                union iwreq_data *wrqu, char *extra)
7340 {
7341         /*
7342          * This can be called at any time.  No action lock required
7343          */
7344
7345         struct ipw2100_priv *priv = ieee80211_priv(dev);
7346
7347         wrqu->data.length = strlen(priv->nick) + 1;
7348         memcpy(extra, priv->nick, wrqu->data.length);
7349         wrqu->data.flags = 1;   /* active */
7350
7351         IPW_DEBUG_WX("GET Nickname -> %s \n", extra);
7352
7353         return 0;
7354 }
7355
7356 static int ipw2100_wx_set_rate(struct net_device *dev,
7357                                struct iw_request_info *info,
7358                                union iwreq_data *wrqu, char *extra)
7359 {
7360         struct ipw2100_priv *priv = ieee80211_priv(dev);
7361         u32 target_rate = wrqu->bitrate.value;
7362         u32 rate;
7363         int err = 0;
7364
7365         down(&priv->action_sem);
7366         if (!(priv->status & STATUS_INITIALIZED)) {
7367                 err = -EIO;
7368                 goto done;
7369         }
7370
7371         rate = 0;
7372
7373         if (target_rate == 1000000 ||
7374             (!wrqu->bitrate.fixed && target_rate > 1000000))
7375                 rate |= TX_RATE_1_MBIT;
7376         if (target_rate == 2000000 ||
7377             (!wrqu->bitrate.fixed && target_rate > 2000000))
7378                 rate |= TX_RATE_2_MBIT;
7379         if (target_rate == 5500000 ||
7380             (!wrqu->bitrate.fixed && target_rate > 5500000))
7381                 rate |= TX_RATE_5_5_MBIT;
7382         if (target_rate == 11000000 ||
7383             (!wrqu->bitrate.fixed && target_rate > 11000000))
7384                 rate |= TX_RATE_11_MBIT;
7385         if (rate == 0)
7386                 rate = DEFAULT_TX_RATES;
7387
7388         err = ipw2100_set_tx_rates(priv, rate, 0);
7389
7390         IPW_DEBUG_WX("SET Rate -> %04X \n", rate);
7391       done:
7392         up(&priv->action_sem);
7393         return err;
7394 }
7395
7396 static int ipw2100_wx_get_rate(struct net_device *dev,
7397                                struct iw_request_info *info,
7398                                union iwreq_data *wrqu, char *extra)
7399 {
7400         struct ipw2100_priv *priv = ieee80211_priv(dev);
7401         int val;
7402         int len = sizeof(val);
7403         int err = 0;
7404
7405         if (!(priv->status & STATUS_ENABLED) ||
7406             priv->status & STATUS_RF_KILL_MASK ||
7407             !(priv->status & STATUS_ASSOCIATED)) {
7408                 wrqu->bitrate.value = 0;
7409                 return 0;
7410         }
7411
7412         down(&priv->action_sem);
7413         if (!(priv->status & STATUS_INITIALIZED)) {
7414                 err = -EIO;
7415                 goto done;
7416         }
7417
7418         err = ipw2100_get_ordinal(priv, IPW_ORD_CURRENT_TX_RATE, &val, &len);
7419         if (err) {
7420                 IPW_DEBUG_WX("failed querying ordinals.\n");
7421                 return err;
7422         }
7423
7424         switch (val & TX_RATE_MASK) {
7425         case TX_RATE_1_MBIT:
7426                 wrqu->bitrate.value = 1000000;
7427                 break;
7428         case TX_RATE_2_MBIT:
7429                 wrqu->bitrate.value = 2000000;
7430                 break;
7431         case TX_RATE_5_5_MBIT:
7432                 wrqu->bitrate.value = 5500000;
7433                 break;
7434         case TX_RATE_11_MBIT:
7435                 wrqu->bitrate.value = 11000000;
7436                 break;
7437         default:
7438                 wrqu->bitrate.value = 0;
7439         }
7440
7441         IPW_DEBUG_WX("GET Rate -> %d \n", wrqu->bitrate.value);
7442
7443       done:
7444         up(&priv->action_sem);
7445         return err;
7446 }
7447
7448 static int ipw2100_wx_set_rts(struct net_device *dev,
7449                               struct iw_request_info *info,
7450                               union iwreq_data *wrqu, char *extra)
7451 {
7452         struct ipw2100_priv *priv = ieee80211_priv(dev);
7453         int value, err;
7454
7455         /* Auto RTS not yet supported */
7456         if (wrqu->rts.fixed == 0)
7457                 return -EINVAL;
7458
7459         down(&priv->action_sem);
7460         if (!(priv->status & STATUS_INITIALIZED)) {
7461                 err = -EIO;
7462                 goto done;
7463         }
7464
7465         if (wrqu->rts.disabled)
7466                 value = priv->rts_threshold | RTS_DISABLED;
7467         else {
7468                 if (wrqu->rts.value < 1 || wrqu->rts.value > 2304) {
7469                         err = -EINVAL;
7470                         goto done;
7471                 }
7472                 value = wrqu->rts.value;
7473         }
7474
7475         err = ipw2100_set_rts_threshold(priv, value);
7476
7477         IPW_DEBUG_WX("SET RTS Threshold -> 0x%08X \n", value);
7478       done:
7479         up(&priv->action_sem);
7480         return err;
7481 }
7482
7483 static int ipw2100_wx_get_rts(struct net_device *dev,
7484                               struct iw_request_info *info,
7485                               union iwreq_data *wrqu, char *extra)
7486 {
7487         /*
7488          * This can be called at any time.  No action lock required
7489          */
7490
7491         struct ipw2100_priv *priv = ieee80211_priv(dev);
7492
7493         wrqu->rts.value = priv->rts_threshold & ~RTS_DISABLED;
7494         wrqu->rts.fixed = 1;    /* no auto select */
7495
7496         /* If RTS is set to the default value, then it is disabled */
7497         wrqu->rts.disabled = (priv->rts_threshold & RTS_DISABLED) ? 1 : 0;
7498
7499         IPW_DEBUG_WX("GET RTS Threshold -> 0x%08X \n", wrqu->rts.value);
7500
7501         return 0;
7502 }
7503
7504 static int ipw2100_wx_set_txpow(struct net_device *dev,
7505                                 struct iw_request_info *info,
7506                                 union iwreq_data *wrqu, char *extra)
7507 {
7508         struct ipw2100_priv *priv = ieee80211_priv(dev);
7509         int err = 0, value;
7510
7511         if (priv->ieee->iw_mode != IW_MODE_ADHOC)
7512                 return -EINVAL;
7513
7514         if (wrqu->txpower.disabled == 1 || wrqu->txpower.fixed == 0)
7515                 value = IPW_TX_POWER_DEFAULT;
7516         else {
7517                 if (wrqu->txpower.value < IPW_TX_POWER_MIN_DBM ||
7518                     wrqu->txpower.value > IPW_TX_POWER_MAX_DBM)
7519                         return -EINVAL;
7520
7521                 value = (wrqu->txpower.value - IPW_TX_POWER_MIN_DBM) * 16 /
7522                     (IPW_TX_POWER_MAX_DBM - IPW_TX_POWER_MIN_DBM);
7523         }
7524
7525         down(&priv->action_sem);
7526         if (!(priv->status & STATUS_INITIALIZED)) {
7527                 err = -EIO;
7528                 goto done;
7529         }
7530
7531         err = ipw2100_set_tx_power(priv, value);
7532
7533         IPW_DEBUG_WX("SET TX Power -> %d \n", value);
7534
7535       done:
7536         up(&priv->action_sem);
7537         return err;
7538 }
7539
7540 static int ipw2100_wx_get_txpow(struct net_device *dev,
7541                                 struct iw_request_info *info,
7542                                 union iwreq_data *wrqu, char *extra)
7543 {
7544         /*
7545          * This can be called at any time.  No action lock required
7546          */
7547
7548         struct ipw2100_priv *priv = ieee80211_priv(dev);
7549
7550         if (priv->ieee->iw_mode != IW_MODE_ADHOC) {
7551                 wrqu->power.disabled = 1;
7552                 return 0;
7553         }
7554
7555         if (priv->tx_power == IPW_TX_POWER_DEFAULT) {
7556                 wrqu->power.fixed = 0;
7557                 wrqu->power.value = IPW_TX_POWER_MAX_DBM;
7558                 wrqu->power.disabled = 1;
7559         } else {
7560                 wrqu->power.disabled = 0;
7561                 wrqu->power.fixed = 1;
7562                 wrqu->power.value =
7563                     (priv->tx_power *
7564                      (IPW_TX_POWER_MAX_DBM - IPW_TX_POWER_MIN_DBM)) /
7565                     (IPW_TX_POWER_MAX - IPW_TX_POWER_MIN) +
7566                     IPW_TX_POWER_MIN_DBM;
7567         }
7568
7569         wrqu->power.flags = IW_TXPOW_DBM;
7570
7571         IPW_DEBUG_WX("GET TX Power -> %d \n", wrqu->power.value);
7572
7573         return 0;
7574 }
7575
7576 static int ipw2100_wx_set_frag(struct net_device *dev,
7577                                struct iw_request_info *info,
7578                                union iwreq_data *wrqu, char *extra)
7579 {
7580         /*
7581          * This can be called at any time.  No action lock required
7582          */
7583
7584         struct ipw2100_priv *priv = ieee80211_priv(dev);
7585
7586         if (!wrqu->frag.fixed)
7587                 return -EINVAL;
7588
7589         if (wrqu->frag.disabled) {
7590                 priv->frag_threshold |= FRAG_DISABLED;
7591                 priv->ieee->fts = DEFAULT_FTS;
7592         } else {
7593                 if (wrqu->frag.value < MIN_FRAG_THRESHOLD ||
7594                     wrqu->frag.value > MAX_FRAG_THRESHOLD)
7595                         return -EINVAL;
7596
7597                 priv->ieee->fts = wrqu->frag.value & ~0x1;
7598                 priv->frag_threshold = priv->ieee->fts;
7599         }
7600
7601         IPW_DEBUG_WX("SET Frag Threshold -> %d \n", priv->ieee->fts);
7602
7603         return 0;
7604 }
7605
7606 static int ipw2100_wx_get_frag(struct net_device *dev,
7607                                struct iw_request_info *info,
7608                                union iwreq_data *wrqu, char *extra)
7609 {
7610         /*
7611          * This can be called at any time.  No action lock required
7612          */
7613
7614         struct ipw2100_priv *priv = ieee80211_priv(dev);
7615         wrqu->frag.value = priv->frag_threshold & ~FRAG_DISABLED;
7616         wrqu->frag.fixed = 0;   /* no auto select */
7617         wrqu->frag.disabled = (priv->frag_threshold & FRAG_DISABLED) ? 1 : 0;
7618
7619         IPW_DEBUG_WX("GET Frag Threshold -> %d \n", wrqu->frag.value);
7620
7621         return 0;
7622 }
7623
7624 static int ipw2100_wx_set_retry(struct net_device *dev,
7625                                 struct iw_request_info *info,
7626                                 union iwreq_data *wrqu, char *extra)
7627 {
7628         struct ipw2100_priv *priv = ieee80211_priv(dev);
7629         int err = 0;
7630
7631         if (wrqu->retry.flags & IW_RETRY_LIFETIME || wrqu->retry.disabled)
7632                 return -EINVAL;
7633
7634         if (!(wrqu->retry.flags & IW_RETRY_LIMIT))
7635                 return 0;
7636
7637         down(&priv->action_sem);
7638         if (!(priv->status & STATUS_INITIALIZED)) {
7639                 err = -EIO;
7640                 goto done;
7641         }
7642
7643         if (wrqu->retry.flags & IW_RETRY_MIN) {
7644                 err = ipw2100_set_short_retry(priv, wrqu->retry.value);
7645                 IPW_DEBUG_WX("SET Short Retry Limit -> %d \n",
7646                              wrqu->retry.value);
7647                 goto done;
7648         }
7649
7650         if (wrqu->retry.flags & IW_RETRY_MAX) {
7651                 err = ipw2100_set_long_retry(priv, wrqu->retry.value);
7652                 IPW_DEBUG_WX("SET Long Retry Limit -> %d \n",
7653                              wrqu->retry.value);
7654                 goto done;
7655         }
7656
7657         err = ipw2100_set_short_retry(priv, wrqu->retry.value);
7658         if (!err)
7659                 err = ipw2100_set_long_retry(priv, wrqu->retry.value);
7660
7661         IPW_DEBUG_WX("SET Both Retry Limits -> %d \n", wrqu->retry.value);
7662
7663       done:
7664         up(&priv->action_sem);
7665         return err;
7666 }
7667
7668 static int ipw2100_wx_get_retry(struct net_device *dev,
7669                                 struct iw_request_info *info,
7670                                 union iwreq_data *wrqu, char *extra)
7671 {
7672         /*
7673          * This can be called at any time.  No action lock required
7674          */
7675
7676         struct ipw2100_priv *priv = ieee80211_priv(dev);
7677
7678         wrqu->retry.disabled = 0;       /* can't be disabled */
7679
7680         if ((wrqu->retry.flags & IW_RETRY_TYPE) == IW_RETRY_LIFETIME)
7681                 return -EINVAL;
7682
7683         if (wrqu->retry.flags & IW_RETRY_MAX) {
7684                 wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
7685                 wrqu->retry.value = priv->long_retry_limit;
7686         } else {
7687                 wrqu->retry.flags =
7688                     (priv->short_retry_limit !=
7689                      priv->long_retry_limit) ?
7690                     IW_RETRY_LIMIT | IW_RETRY_MIN : IW_RETRY_LIMIT;
7691
7692                 wrqu->retry.value = priv->short_retry_limit;
7693         }
7694
7695         IPW_DEBUG_WX("GET Retry -> %d \n", wrqu->retry.value);
7696
7697         return 0;
7698 }
7699
7700 static int ipw2100_wx_set_scan(struct net_device *dev,
7701                                struct iw_request_info *info,
7702                                union iwreq_data *wrqu, char *extra)
7703 {
7704         struct ipw2100_priv *priv = ieee80211_priv(dev);
7705         int err = 0;
7706
7707         down(&priv->action_sem);
7708         if (!(priv->status & STATUS_INITIALIZED)) {
7709                 err = -EIO;
7710                 goto done;
7711         }
7712
7713         IPW_DEBUG_WX("Initiating scan...\n");
7714         if (ipw2100_set_scan_options(priv) || ipw2100_start_scan(priv)) {
7715                 IPW_DEBUG_WX("Start scan failed.\n");
7716
7717                 /* TODO: Mark a scan as pending so when hardware initialized
7718                  *       a scan starts */
7719         }
7720
7721       done:
7722         up(&priv->action_sem);
7723         return err;
7724 }
7725
7726 static int ipw2100_wx_get_scan(struct net_device *dev,
7727                                struct iw_request_info *info,
7728                                union iwreq_data *wrqu, char *extra)
7729 {
7730         /*
7731          * This can be called at any time.  No action lock required
7732          */
7733
7734         struct ipw2100_priv *priv = ieee80211_priv(dev);
7735         return ieee80211_wx_get_scan(priv->ieee, info, wrqu, extra);
7736 }
7737
7738 /*
7739  * Implementation based on code in hostap-driver v0.1.3 hostap_ioctl.c
7740  */
7741 static int ipw2100_wx_set_encode(struct net_device *dev,
7742                                  struct iw_request_info *info,
7743                                  union iwreq_data *wrqu, char *key)
7744 {
7745         /*
7746          * No check of STATUS_INITIALIZED required
7747          */
7748
7749         struct ipw2100_priv *priv = ieee80211_priv(dev);
7750         return ieee80211_wx_set_encode(priv->ieee, info, wrqu, key);
7751 }
7752
7753 static int ipw2100_wx_get_encode(struct net_device *dev,
7754                                  struct iw_request_info *info,
7755                                  union iwreq_data *wrqu, char *key)
7756 {
7757         /*
7758          * This can be called at any time.  No action lock required
7759          */
7760
7761         struct ipw2100_priv *priv = ieee80211_priv(dev);
7762         return ieee80211_wx_get_encode(priv->ieee, info, wrqu, key);
7763 }
7764
7765 static int ipw2100_wx_set_power(struct net_device *dev,
7766                                 struct iw_request_info *info,
7767                                 union iwreq_data *wrqu, char *extra)
7768 {
7769         struct ipw2100_priv *priv = ieee80211_priv(dev);
7770         int err = 0;
7771
7772         down(&priv->action_sem);
7773         if (!(priv->status & STATUS_INITIALIZED)) {
7774                 err = -EIO;
7775                 goto done;
7776         }
7777
7778         if (wrqu->power.disabled) {
7779                 priv->power_mode = IPW_POWER_LEVEL(priv->power_mode);
7780                 err = ipw2100_set_power_mode(priv, IPW_POWER_MODE_CAM);
7781                 IPW_DEBUG_WX("SET Power Management Mode -> off\n");
7782                 goto done;
7783         }
7784
7785         switch (wrqu->power.flags & IW_POWER_MODE) {
7786         case IW_POWER_ON:       /* If not specified */
7787         case IW_POWER_MODE:     /* If set all mask */
7788         case IW_POWER_ALL_R:    /* If explicitely state all */
7789                 break;
7790         default:                /* Otherwise we don't support it */
7791                 IPW_DEBUG_WX("SET PM Mode: %X not supported.\n",
7792                              wrqu->power.flags);
7793                 err = -EOPNOTSUPP;
7794                 goto done;
7795         }
7796
7797         /* If the user hasn't specified a power management mode yet, default
7798          * to BATTERY */
7799         priv->power_mode = IPW_POWER_ENABLED | priv->power_mode;
7800         err = ipw2100_set_power_mode(priv, IPW_POWER_LEVEL(priv->power_mode));
7801
7802         IPW_DEBUG_WX("SET Power Management Mode -> 0x%02X\n", priv->power_mode);
7803
7804       done:
7805         up(&priv->action_sem);
7806         return err;
7807
7808 }
7809
7810 static int ipw2100_wx_get_power(struct net_device *dev,
7811                                 struct iw_request_info *info,
7812                                 union iwreq_data *wrqu, char *extra)
7813 {
7814         /*
7815          * This can be called at any time.  No action lock required
7816          */
7817
7818         struct ipw2100_priv *priv = ieee80211_priv(dev);
7819
7820         if (!(priv->power_mode & IPW_POWER_ENABLED))
7821                 wrqu->power.disabled = 1;
7822         else {
7823                 wrqu->power.disabled = 0;
7824                 wrqu->power.flags = 0;
7825         }
7826
7827         IPW_DEBUG_WX("GET Power Management Mode -> %02X\n", priv->power_mode);
7828
7829         return 0;
7830 }
7831
7832 #if WIRELESS_EXT > 17
7833 /*
7834  * WE-18 WPA support
7835  */
7836
7837 /* SIOCSIWGENIE */
7838 static int ipw2100_wx_set_genie(struct net_device *dev,
7839                                 struct iw_request_info *info,
7840                                 union iwreq_data *wrqu, char *extra)
7841 {
7842
7843         struct ipw2100_priv *priv = ieee80211_priv(dev);
7844         struct ieee80211_device *ieee = priv->ieee;
7845         u8 *buf;
7846
7847         if (!ieee->wpa_enabled)
7848                 return -EOPNOTSUPP;
7849
7850         if (wrqu->data.length > MAX_WPA_IE_LEN ||
7851             (wrqu->data.length && extra == NULL))
7852                 return -EINVAL;
7853
7854         if (wrqu->data.length) {
7855                 buf = kmalloc(wrqu->data.length, GFP_KERNEL);
7856                 if (buf == NULL)
7857                         return -ENOMEM;
7858
7859                 memcpy(buf, extra, wrqu->data.length);
7860                 kfree(ieee->wpa_ie);
7861                 ieee->wpa_ie = buf;
7862                 ieee->wpa_ie_len = wrqu->data.length;
7863         } else {
7864                 kfree(ieee->wpa_ie);
7865                 ieee->wpa_ie = NULL;
7866                 ieee->wpa_ie_len = 0;
7867         }
7868
7869         ipw2100_wpa_assoc_frame(priv, ieee->wpa_ie, ieee->wpa_ie_len);
7870
7871         return 0;
7872 }
7873
7874 /* SIOCGIWGENIE */
7875 static int ipw2100_wx_get_genie(struct net_device *dev,
7876                                 struct iw_request_info *info,
7877                                 union iwreq_data *wrqu, char *extra)
7878 {
7879         struct ipw2100_priv *priv = ieee80211_priv(dev);
7880         struct ieee80211_device *ieee = priv->ieee;
7881
7882         if (ieee->wpa_ie_len == 0 || ieee->wpa_ie == NULL) {
7883                 wrqu->data.length = 0;
7884                 return 0;
7885         }
7886
7887         if (wrqu->data.length < ieee->wpa_ie_len)
7888                 return -E2BIG;
7889
7890         wrqu->data.length = ieee->wpa_ie_len;
7891         memcpy(extra, ieee->wpa_ie, ieee->wpa_ie_len);
7892
7893         return 0;
7894 }
7895
7896 /* SIOCSIWAUTH */
7897 static int ipw2100_wx_set_auth(struct net_device *dev,
7898                                struct iw_request_info *info,
7899                                union iwreq_data *wrqu, char *extra)
7900 {
7901         struct ipw2100_priv *priv = ieee80211_priv(dev);
7902         struct ieee80211_device *ieee = priv->ieee;
7903         struct iw_param *param = &wrqu->param;
7904         struct ieee80211_crypt_data *crypt;
7905         unsigned long flags;
7906         int ret = 0;
7907
7908         switch (param->flags & IW_AUTH_INDEX) {
7909         case IW_AUTH_WPA_VERSION:
7910         case IW_AUTH_CIPHER_PAIRWISE:
7911         case IW_AUTH_CIPHER_GROUP:
7912         case IW_AUTH_KEY_MGMT:
7913                 /*
7914                  * ipw2200 does not use these parameters
7915                  */
7916                 break;
7917
7918         case IW_AUTH_TKIP_COUNTERMEASURES:
7919                 crypt = priv->ieee->crypt[priv->ieee->tx_keyidx];
7920                 if (!crypt || !crypt->ops->set_flags || !crypt->ops->get_flags) {
7921                         IPW_DEBUG_WARNING("Can't set TKIP countermeasures: "
7922                                           "crypt not set!\n");
7923                         break;
7924                 }
7925
7926                 flags = crypt->ops->get_flags(crypt->priv);
7927
7928                 if (param->value)
7929                         flags |= IEEE80211_CRYPTO_TKIP_COUNTERMEASURES;
7930                 else
7931                         flags &= ~IEEE80211_CRYPTO_TKIP_COUNTERMEASURES;
7932
7933                 crypt->ops->set_flags(flags, crypt->priv);
7934
7935                 break;
7936
7937         case IW_AUTH_DROP_UNENCRYPTED:{
7938                         /* HACK:
7939                          *
7940                          * wpa_supplicant calls set_wpa_enabled when the driver
7941                          * is loaded and unloaded, regardless of if WPA is being
7942                          * used.  No other calls are made which can be used to
7943                          * determine if encryption will be used or not prior to
7944                          * association being expected.  If encryption is not being
7945                          * used, drop_unencrypted is set to false, else true -- we
7946                          * can use this to determine if the CAP_PRIVACY_ON bit should
7947                          * be set.
7948                          */
7949                         struct ieee80211_security sec = {
7950                                 .flags = SEC_ENABLED,
7951                                 .enabled = param->value,
7952                         };
7953                         priv->ieee->drop_unencrypted = param->value;
7954                         /* We only change SEC_LEVEL for open mode. Others
7955                          * are set by ipw_wpa_set_encryption.
7956                          */
7957                         if (!param->value) {
7958                                 sec.flags |= SEC_LEVEL;
7959                                 sec.level = SEC_LEVEL_0;
7960                         } else {
7961                                 sec.flags |= SEC_LEVEL;
7962                                 sec.level = SEC_LEVEL_1;
7963                         }
7964                         if (priv->ieee->set_security)
7965                                 priv->ieee->set_security(priv->ieee->dev, &sec);
7966                         break;
7967                 }
7968
7969         case IW_AUTH_80211_AUTH_ALG:
7970                 ret = ipw2100_wpa_set_auth_algs(priv, param->value);
7971                 break;
7972
7973         case IW_AUTH_WPA_ENABLED:
7974                 ret = ipw2100_wpa_enable(priv, param->value);
7975                 break;
7976
7977         case IW_AUTH_RX_UNENCRYPTED_EAPOL:
7978                 ieee->ieee802_1x = param->value;
7979                 break;
7980
7981                 //case IW_AUTH_ROAMING_CONTROL:
7982         case IW_AUTH_PRIVACY_INVOKED:
7983                 ieee->privacy_invoked = param->value;
7984                 break;
7985
7986         default:
7987                 return -EOPNOTSUPP;
7988         }
7989         return ret;
7990 }
7991
7992 /* SIOCGIWAUTH */
7993 static int ipw2100_wx_get_auth(struct net_device *dev,
7994                                struct iw_request_info *info,
7995                                union iwreq_data *wrqu, char *extra)
7996 {
7997         struct ipw2100_priv *priv = ieee80211_priv(dev);
7998         struct ieee80211_device *ieee = priv->ieee;
7999         struct ieee80211_crypt_data *crypt;
8000         struct iw_param *param = &wrqu->param;
8001         int ret = 0;
8002
8003         switch (param->flags & IW_AUTH_INDEX) {
8004         case IW_AUTH_WPA_VERSION:
8005         case IW_AUTH_CIPHER_PAIRWISE:
8006         case IW_AUTH_CIPHER_GROUP:
8007         case IW_AUTH_KEY_MGMT:
8008                 /*
8009                  * wpa_supplicant will control these internally
8010                  */
8011                 ret = -EOPNOTSUPP;
8012                 break;
8013
8014         case IW_AUTH_TKIP_COUNTERMEASURES:
8015                 crypt = priv->ieee->crypt[priv->ieee->tx_keyidx];
8016                 if (!crypt || !crypt->ops->get_flags) {
8017                         IPW_DEBUG_WARNING("Can't get TKIP countermeasures: "
8018                                           "crypt not set!\n");
8019                         break;
8020                 }
8021
8022                 param->value = (crypt->ops->get_flags(crypt->priv) &
8023                                 IEEE80211_CRYPTO_TKIP_COUNTERMEASURES) ? 1 : 0;
8024
8025                 break;
8026
8027         case IW_AUTH_DROP_UNENCRYPTED:
8028                 param->value = ieee->drop_unencrypted;
8029                 break;
8030
8031         case IW_AUTH_80211_AUTH_ALG:
8032                 param->value = priv->sec.auth_mode;
8033                 break;
8034
8035         case IW_AUTH_WPA_ENABLED:
8036                 param->value = ieee->wpa_enabled;
8037                 break;
8038
8039         case IW_AUTH_RX_UNENCRYPTED_EAPOL:
8040                 param->value = ieee->ieee802_1x;
8041                 break;
8042
8043         case IW_AUTH_ROAMING_CONTROL:
8044         case IW_AUTH_PRIVACY_INVOKED:
8045                 param->value = ieee->privacy_invoked;
8046                 break;
8047
8048         default:
8049                 return -EOPNOTSUPP;
8050         }
8051         return 0;
8052 }
8053
8054 /* SIOCSIWENCODEEXT */
8055 static int ipw2100_wx_set_encodeext(struct net_device *dev,
8056                                     struct iw_request_info *info,
8057                                     union iwreq_data *wrqu, char *extra)
8058 {
8059         struct ipw2100_priv *priv = ieee80211_priv(dev);
8060         return ieee80211_wx_set_encodeext(priv->ieee, info, wrqu, extra);
8061 }
8062
8063 /* SIOCGIWENCODEEXT */
8064 static int ipw2100_wx_get_encodeext(struct net_device *dev,
8065                                     struct iw_request_info *info,
8066                                     union iwreq_data *wrqu, char *extra)
8067 {
8068         struct ipw2100_priv *priv = ieee80211_priv(dev);
8069         return ieee80211_wx_get_encodeext(priv->ieee, info, wrqu, extra);
8070 }
8071
8072 /* SIOCSIWMLME */
8073 static int ipw2100_wx_set_mlme(struct net_device *dev,
8074                                struct iw_request_info *info,
8075                                union iwreq_data *wrqu, char *extra)
8076 {
8077         struct ipw2100_priv *priv = ieee80211_priv(dev);
8078         struct iw_mlme *mlme = (struct iw_mlme *)extra;
8079         u16 reason;
8080
8081         reason = cpu_to_le16(mlme->reason_code);
8082
8083         switch (mlme->cmd) {
8084         case IW_MLME_DEAUTH:
8085                 // silently ignore
8086                 break;
8087
8088         case IW_MLME_DISASSOC:
8089                 ipw2100_disassociate_bssid(priv);
8090                 break;
8091
8092         default:
8093                 return -EOPNOTSUPP;
8094         }
8095         return 0;
8096 }
8097 #endif                          /* WIRELESS_EXT > 17 */
8098
8099 /*
8100  *
8101  * IWPRIV handlers
8102  *
8103  */
8104 #ifdef CONFIG_IPW2100_MONITOR
8105 static int ipw2100_wx_set_promisc(struct net_device *dev,
8106                                   struct iw_request_info *info,
8107                                   union iwreq_data *wrqu, char *extra)
8108 {
8109         struct ipw2100_priv *priv = ieee80211_priv(dev);
8110         int *parms = (int *)extra;
8111         int enable = (parms[0] > 0);
8112         int err = 0;
8113
8114         down(&priv->action_sem);
8115         if (!(priv->status & STATUS_INITIALIZED)) {
8116                 err = -EIO;
8117                 goto done;
8118         }
8119
8120         if (enable) {
8121                 if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
8122                         err = ipw2100_set_channel(priv, parms[1], 0);
8123                         goto done;
8124                 }
8125                 priv->channel = parms[1];
8126                 err = ipw2100_switch_mode(priv, IW_MODE_MONITOR);
8127         } else {
8128                 if (priv->ieee->iw_mode == IW_MODE_MONITOR)
8129                         err = ipw2100_switch_mode(priv, priv->last_mode);
8130         }
8131       done:
8132         up(&priv->action_sem);
8133         return err;
8134 }
8135
8136 static int ipw2100_wx_reset(struct net_device *dev,
8137                             struct iw_request_info *info,
8138                             union iwreq_data *wrqu, char *extra)
8139 {
8140         struct ipw2100_priv *priv = ieee80211_priv(dev);
8141         if (priv->status & STATUS_INITIALIZED)
8142                 schedule_reset(priv);
8143         return 0;
8144 }
8145
8146 #endif
8147
8148 static int ipw2100_wx_set_powermode(struct net_device *dev,
8149                                     struct iw_request_info *info,
8150                                     union iwreq_data *wrqu, char *extra)
8151 {
8152         struct ipw2100_priv *priv = ieee80211_priv(dev);
8153         int err = 0, mode = *(int *)extra;
8154
8155         down(&priv->action_sem);
8156         if (!(priv->status & STATUS_INITIALIZED)) {
8157                 err = -EIO;
8158                 goto done;
8159         }
8160
8161         if ((mode < 1) || (mode > POWER_MODES))
8162                 mode = IPW_POWER_AUTO;
8163
8164         if (priv->power_mode != mode)
8165                 err = ipw2100_set_power_mode(priv, mode);
8166       done:
8167         up(&priv->action_sem);
8168         return err;
8169 }
8170
8171 #define MAX_POWER_STRING 80
8172 static int ipw2100_wx_get_powermode(struct net_device *dev,
8173                                     struct iw_request_info *info,
8174                                     union iwreq_data *wrqu, char *extra)
8175 {
8176         /*
8177          * This can be called at any time.  No action lock required
8178          */
8179
8180         struct ipw2100_priv *priv = ieee80211_priv(dev);
8181         int level = IPW_POWER_LEVEL(priv->power_mode);
8182         s32 timeout, period;
8183
8184         if (!(priv->power_mode & IPW_POWER_ENABLED)) {
8185                 snprintf(extra, MAX_POWER_STRING,
8186                          "Power save level: %d (Off)", level);
8187         } else {
8188                 switch (level) {
8189                 case IPW_POWER_MODE_CAM:
8190                         snprintf(extra, MAX_POWER_STRING,
8191                                  "Power save level: %d (None)", level);
8192                         break;
8193                 case IPW_POWER_AUTO:
8194                         snprintf(extra, MAX_POWER_STRING,
8195                                  "Power save level: %d (Auto)", 0);
8196                         break;
8197                 default:
8198                         timeout = timeout_duration[level - 1] / 1000;
8199                         period = period_duration[level - 1] / 1000;
8200                         snprintf(extra, MAX_POWER_STRING,
8201                                  "Power save level: %d "
8202                                  "(Timeout %dms, Period %dms)",
8203                                  level, timeout, period);
8204                 }
8205         }
8206
8207         wrqu->data.length = strlen(extra) + 1;
8208
8209         return 0;
8210 }
8211
8212 static int ipw2100_wx_set_preamble(struct net_device *dev,
8213                                    struct iw_request_info *info,
8214                                    union iwreq_data *wrqu, char *extra)
8215 {
8216         struct ipw2100_priv *priv = ieee80211_priv(dev);
8217         int err, mode = *(int *)extra;
8218
8219         down(&priv->action_sem);
8220         if (!(priv->status & STATUS_INITIALIZED)) {
8221                 err = -EIO;
8222                 goto done;
8223         }
8224
8225         if (mode == 1)
8226                 priv->config |= CFG_LONG_PREAMBLE;
8227         else if (mode == 0)
8228                 priv->config &= ~CFG_LONG_PREAMBLE;
8229         else {
8230                 err = -EINVAL;
8231                 goto done;
8232         }
8233
8234         err = ipw2100_system_config(priv, 0);
8235
8236       done:
8237         up(&priv->action_sem);
8238         return err;
8239 }
8240
8241 static int ipw2100_wx_get_preamble(struct net_device *dev,
8242                                    struct iw_request_info *info,
8243                                    union iwreq_data *wrqu, char *extra)
8244 {
8245         /*
8246          * This can be called at any time.  No action lock required
8247          */
8248
8249         struct ipw2100_priv *priv = ieee80211_priv(dev);
8250
8251         if (priv->config & CFG_LONG_PREAMBLE)
8252                 snprintf(wrqu->name, IFNAMSIZ, "long (1)");
8253         else
8254                 snprintf(wrqu->name, IFNAMSIZ, "auto (0)");
8255
8256         return 0;
8257 }
8258
8259 #ifdef CONFIG_IPW2100_MONITOR
8260 static int ipw2100_wx_set_crc_check(struct net_device *dev,
8261                                     struct iw_request_info *info,
8262                                     union iwreq_data *wrqu, char *extra)
8263 {
8264         struct ipw2100_priv *priv = ieee80211_priv(dev);
8265         int err, mode = *(int *)extra;
8266
8267         down(&priv->action_sem);
8268         if (!(priv->status & STATUS_INITIALIZED)) {
8269                 err = -EIO;
8270                 goto done;
8271         }
8272
8273         if (mode == 1)
8274                 priv->config |= CFG_CRC_CHECK;
8275         else if (mode == 0)
8276                 priv->config &= ~CFG_CRC_CHECK;
8277         else {
8278                 err = -EINVAL;
8279                 goto done;
8280         }
8281         err = 0;
8282
8283       done:
8284         up(&priv->action_sem);
8285         return err;
8286 }
8287
8288 static int ipw2100_wx_get_crc_check(struct net_device *dev,
8289                                     struct iw_request_info *info,
8290                                     union iwreq_data *wrqu, char *extra)
8291 {
8292         /*
8293          * This can be called at any time.  No action lock required
8294          */
8295
8296         struct ipw2100_priv *priv = ieee80211_priv(dev);
8297
8298         if (priv->config & CFG_CRC_CHECK)
8299                 snprintf(wrqu->name, IFNAMSIZ, "CRC checked (1)");
8300         else
8301                 snprintf(wrqu->name, IFNAMSIZ, "CRC ignored (0)");
8302
8303         return 0;
8304 }
8305 #endif                          /* CONFIG_IPW2100_MONITOR */
8306
8307 static iw_handler ipw2100_wx_handlers[] = {
8308         NULL,                   /* SIOCSIWCOMMIT */
8309         ipw2100_wx_get_name,    /* SIOCGIWNAME */
8310         NULL,                   /* SIOCSIWNWID */
8311         NULL,                   /* SIOCGIWNWID */
8312         ipw2100_wx_set_freq,    /* SIOCSIWFREQ */
8313         ipw2100_wx_get_freq,    /* SIOCGIWFREQ */
8314         ipw2100_wx_set_mode,    /* SIOCSIWMODE */
8315         ipw2100_wx_get_mode,    /* SIOCGIWMODE */
8316         NULL,                   /* SIOCSIWSENS */
8317         NULL,                   /* SIOCGIWSENS */
8318         NULL,                   /* SIOCSIWRANGE */
8319         ipw2100_wx_get_range,   /* SIOCGIWRANGE */
8320         NULL,                   /* SIOCSIWPRIV */
8321         NULL,                   /* SIOCGIWPRIV */
8322         NULL,                   /* SIOCSIWSTATS */
8323         NULL,                   /* SIOCGIWSTATS */
8324         NULL,                   /* SIOCSIWSPY */
8325         NULL,                   /* SIOCGIWSPY */
8326         NULL,                   /* SIOCGIWTHRSPY */
8327         NULL,                   /* SIOCWIWTHRSPY */
8328         ipw2100_wx_set_wap,     /* SIOCSIWAP */
8329         ipw2100_wx_get_wap,     /* SIOCGIWAP */
8330 #if WIRELESS_EXT > 17
8331         ipw2100_wx_set_mlme,    /* SIOCSIWMLME */
8332 #else
8333         NULL,                   /* -- hole -- */
8334 #endif
8335         NULL,                   /* SIOCGIWAPLIST -- deprecated */
8336         ipw2100_wx_set_scan,    /* SIOCSIWSCAN */
8337         ipw2100_wx_get_scan,    /* SIOCGIWSCAN */
8338         ipw2100_wx_set_essid,   /* SIOCSIWESSID */
8339         ipw2100_wx_get_essid,   /* SIOCGIWESSID */
8340         ipw2100_wx_set_nick,    /* SIOCSIWNICKN */
8341         ipw2100_wx_get_nick,    /* SIOCGIWNICKN */
8342         NULL,                   /* -- hole -- */
8343         NULL,                   /* -- hole -- */
8344         ipw2100_wx_set_rate,    /* SIOCSIWRATE */
8345         ipw2100_wx_get_rate,    /* SIOCGIWRATE */
8346         ipw2100_wx_set_rts,     /* SIOCSIWRTS */
8347         ipw2100_wx_get_rts,     /* SIOCGIWRTS */
8348         ipw2100_wx_set_frag,    /* SIOCSIWFRAG */
8349         ipw2100_wx_get_frag,    /* SIOCGIWFRAG */
8350         ipw2100_wx_set_txpow,   /* SIOCSIWTXPOW */
8351         ipw2100_wx_get_txpow,   /* SIOCGIWTXPOW */
8352         ipw2100_wx_set_retry,   /* SIOCSIWRETRY */
8353         ipw2100_wx_get_retry,   /* SIOCGIWRETRY */
8354         ipw2100_wx_set_encode,  /* SIOCSIWENCODE */
8355         ipw2100_wx_get_encode,  /* SIOCGIWENCODE */
8356         ipw2100_wx_set_power,   /* SIOCSIWPOWER */
8357         ipw2100_wx_get_power,   /* SIOCGIWPOWER */
8358 #if WIRELESS_EXT > 17
8359         NULL,                   /* -- hole -- */
8360         NULL,                   /* -- hole -- */
8361         ipw2100_wx_set_genie,   /* SIOCSIWGENIE */
8362         ipw2100_wx_get_genie,   /* SIOCGIWGENIE */
8363         ipw2100_wx_set_auth,    /* SIOCSIWAUTH */
8364         ipw2100_wx_get_auth,    /* SIOCGIWAUTH */
8365         ipw2100_wx_set_encodeext,       /* SIOCSIWENCODEEXT */
8366         ipw2100_wx_get_encodeext,       /* SIOCGIWENCODEEXT */
8367         NULL,                   /* SIOCSIWPMKSA */
8368 #endif
8369 };
8370
8371 #define IPW2100_PRIV_SET_MONITOR        SIOCIWFIRSTPRIV
8372 #define IPW2100_PRIV_RESET              SIOCIWFIRSTPRIV+1
8373 #define IPW2100_PRIV_SET_POWER          SIOCIWFIRSTPRIV+2
8374 #define IPW2100_PRIV_GET_POWER          SIOCIWFIRSTPRIV+3
8375 #define IPW2100_PRIV_SET_LONGPREAMBLE   SIOCIWFIRSTPRIV+4
8376 #define IPW2100_PRIV_GET_LONGPREAMBLE   SIOCIWFIRSTPRIV+5
8377 #define IPW2100_PRIV_SET_CRC_CHECK      SIOCIWFIRSTPRIV+6
8378 #define IPW2100_PRIV_GET_CRC_CHECK      SIOCIWFIRSTPRIV+7
8379
8380 static const struct iw_priv_args ipw2100_private_args[] = {
8381
8382 #ifdef CONFIG_IPW2100_MONITOR
8383         {
8384          IPW2100_PRIV_SET_MONITOR,
8385          IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2, 0, "monitor"},
8386         {
8387          IPW2100_PRIV_RESET,
8388          IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 0, 0, "reset"},
8389 #endif                          /* CONFIG_IPW2100_MONITOR */
8390
8391         {
8392          IPW2100_PRIV_SET_POWER,
8393          IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "set_power"},
8394         {
8395          IPW2100_PRIV_GET_POWER,
8396          0, IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | MAX_POWER_STRING,
8397          "get_power"},
8398         {
8399          IPW2100_PRIV_SET_LONGPREAMBLE,
8400          IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "set_preamble"},
8401         {
8402          IPW2100_PRIV_GET_LONGPREAMBLE,
8403          0, IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | IFNAMSIZ, "get_preamble"},
8404 #ifdef CONFIG_IPW2100_MONITOR
8405         {
8406          IPW2100_PRIV_SET_CRC_CHECK,
8407          IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "set_crc_check"},
8408         {
8409          IPW2100_PRIV_GET_CRC_CHECK,
8410          0, IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | IFNAMSIZ, "get_crc_check"},
8411 #endif                          /* CONFIG_IPW2100_MONITOR */
8412 };
8413
8414 static iw_handler ipw2100_private_handler[] = {
8415 #ifdef CONFIG_IPW2100_MONITOR
8416         ipw2100_wx_set_promisc,
8417         ipw2100_wx_reset,
8418 #else                           /* CONFIG_IPW2100_MONITOR */
8419         NULL,
8420         NULL,
8421 #endif                          /* CONFIG_IPW2100_MONITOR */
8422         ipw2100_wx_set_powermode,
8423         ipw2100_wx_get_powermode,
8424         ipw2100_wx_set_preamble,
8425         ipw2100_wx_get_preamble,
8426 #ifdef CONFIG_IPW2100_MONITOR
8427         ipw2100_wx_set_crc_check,
8428         ipw2100_wx_get_crc_check,
8429 #else                           /* CONFIG_IPW2100_MONITOR */
8430         NULL,
8431         NULL,
8432 #endif                          /* CONFIG_IPW2100_MONITOR */
8433 };
8434
8435 static struct iw_handler_def ipw2100_wx_handler_def = {
8436         .standard = ipw2100_wx_handlers,
8437         .num_standard = sizeof(ipw2100_wx_handlers) / sizeof(iw_handler),
8438         .num_private = sizeof(ipw2100_private_handler) / sizeof(iw_handler),
8439         .num_private_args = sizeof(ipw2100_private_args) /
8440             sizeof(struct iw_priv_args),
8441         .private = (iw_handler *) ipw2100_private_handler,
8442         .private_args = (struct iw_priv_args *)ipw2100_private_args,
8443 };
8444
8445 /*
8446  * Get wireless statistics.
8447  * Called by /proc/net/wireless
8448  * Also called by SIOCGIWSTATS
8449  */
8450 static struct iw_statistics *ipw2100_wx_wireless_stats(struct net_device *dev)
8451 {
8452         enum {
8453                 POOR = 30,
8454                 FAIR = 60,
8455                 GOOD = 80,
8456                 VERY_GOOD = 90,
8457                 EXCELLENT = 95,
8458                 PERFECT = 100
8459         };
8460         int rssi_qual;
8461         int tx_qual;
8462         int beacon_qual;
8463
8464         struct ipw2100_priv *priv = ieee80211_priv(dev);
8465         struct iw_statistics *wstats;
8466         u32 rssi, quality, tx_retries, missed_beacons, tx_failures;
8467         u32 ord_len = sizeof(u32);
8468
8469         if (!priv)
8470                 return (struct iw_statistics *)NULL;
8471
8472         wstats = &priv->wstats;
8473
8474         /* if hw is disabled, then ipw2100_get_ordinal() can't be called.
8475          * ipw2100_wx_wireless_stats seems to be called before fw is
8476          * initialized.  STATUS_ASSOCIATED will only be set if the hw is up
8477          * and associated; if not associcated, the values are all meaningless
8478          * anyway, so set them all to NULL and INVALID */
8479         if (!(priv->status & STATUS_ASSOCIATED)) {
8480                 wstats->miss.beacon = 0;
8481                 wstats->discard.retries = 0;
8482                 wstats->qual.qual = 0;
8483                 wstats->qual.level = 0;
8484                 wstats->qual.noise = 0;
8485                 wstats->qual.updated = 7;
8486                 wstats->qual.updated |= IW_QUAL_NOISE_INVALID |
8487                     IW_QUAL_QUAL_INVALID | IW_QUAL_LEVEL_INVALID;
8488                 return wstats;
8489         }
8490
8491         if (ipw2100_get_ordinal(priv, IPW_ORD_STAT_PERCENT_MISSED_BCNS,
8492                                 &missed_beacons, &ord_len))
8493                 goto fail_get_ordinal;
8494
8495         /* If we don't have a connection the quality and level is 0 */
8496         if (!(priv->status & STATUS_ASSOCIATED)) {
8497                 wstats->qual.qual = 0;
8498                 wstats->qual.level = 0;
8499         } else {
8500                 if (ipw2100_get_ordinal(priv, IPW_ORD_RSSI_AVG_CURR,
8501                                         &rssi, &ord_len))
8502                         goto fail_get_ordinal;
8503                 wstats->qual.level = rssi + IPW2100_RSSI_TO_DBM;
8504                 if (rssi < 10)
8505                         rssi_qual = rssi * POOR / 10;
8506                 else if (rssi < 15)
8507                         rssi_qual = (rssi - 10) * (FAIR - POOR) / 5 + POOR;
8508                 else if (rssi < 20)
8509                         rssi_qual = (rssi - 15) * (GOOD - FAIR) / 5 + FAIR;
8510                 else if (rssi < 30)
8511                         rssi_qual = (rssi - 20) * (VERY_GOOD - GOOD) /
8512                             10 + GOOD;
8513                 else
8514                         rssi_qual = (rssi - 30) * (PERFECT - VERY_GOOD) /
8515                             10 + VERY_GOOD;
8516
8517                 if (ipw2100_get_ordinal(priv, IPW_ORD_STAT_PERCENT_RETRIES,
8518                                         &tx_retries, &ord_len))
8519                         goto fail_get_ordinal;
8520
8521                 if (tx_retries > 75)
8522                         tx_qual = (90 - tx_retries) * POOR / 15;
8523                 else if (tx_retries > 70)
8524                         tx_qual = (75 - tx_retries) * (FAIR - POOR) / 5 + POOR;
8525                 else if (tx_retries > 65)
8526                         tx_qual = (70 - tx_retries) * (GOOD - FAIR) / 5 + FAIR;
8527                 else if (tx_retries > 50)
8528                         tx_qual = (65 - tx_retries) * (VERY_GOOD - GOOD) /
8529                             15 + GOOD;
8530                 else
8531                         tx_qual = (50 - tx_retries) *
8532                             (PERFECT - VERY_GOOD) / 50 + VERY_GOOD;
8533
8534                 if (missed_beacons > 50)
8535                         beacon_qual = (60 - missed_beacons) * POOR / 10;
8536                 else if (missed_beacons > 40)
8537                         beacon_qual = (50 - missed_beacons) * (FAIR - POOR) /
8538                             10 + POOR;
8539                 else if (missed_beacons > 32)
8540                         beacon_qual = (40 - missed_beacons) * (GOOD - FAIR) /
8541                             18 + FAIR;
8542                 else if (missed_beacons > 20)
8543                         beacon_qual = (32 - missed_beacons) *
8544                             (VERY_GOOD - GOOD) / 20 + GOOD;
8545                 else
8546                         beacon_qual = (20 - missed_beacons) *
8547                             (PERFECT - VERY_GOOD) / 20 + VERY_GOOD;
8548
8549                 quality = min(beacon_qual, min(tx_qual, rssi_qual));
8550
8551 #ifdef CONFIG_IPW_DEBUG
8552                 if (beacon_qual == quality)
8553                         IPW_DEBUG_WX("Quality clamped by Missed Beacons\n");
8554                 else if (tx_qual == quality)
8555                         IPW_DEBUG_WX("Quality clamped by Tx Retries\n");
8556                 else if (quality != 100)
8557                         IPW_DEBUG_WX("Quality clamped by Signal Strength\n");
8558                 else
8559                         IPW_DEBUG_WX("Quality not clamped.\n");
8560 #endif
8561
8562                 wstats->qual.qual = quality;
8563                 wstats->qual.level = rssi + IPW2100_RSSI_TO_DBM;
8564         }
8565
8566         wstats->qual.noise = 0;
8567         wstats->qual.updated = 7;
8568         wstats->qual.updated |= IW_QUAL_NOISE_INVALID;
8569
8570         /* FIXME: this is percent and not a # */
8571         wstats->miss.beacon = missed_beacons;
8572
8573         if (ipw2100_get_ordinal(priv, IPW_ORD_STAT_TX_FAILURES,
8574                                 &tx_failures, &ord_len))
8575                 goto fail_get_ordinal;
8576         wstats->discard.retries = tx_failures;
8577
8578         return wstats;
8579
8580       fail_get_ordinal:
8581         IPW_DEBUG_WX("failed querying ordinals.\n");
8582
8583         return (struct iw_statistics *)NULL;
8584 }
8585
8586 static void ipw2100_wx_event_work(struct ipw2100_priv *priv)
8587 {
8588         union iwreq_data wrqu;
8589         int len = ETH_ALEN;
8590
8591         if (priv->status & STATUS_STOPPING)
8592                 return;
8593
8594         down(&priv->action_sem);
8595
8596         IPW_DEBUG_WX("enter\n");
8597
8598         up(&priv->action_sem);
8599
8600         wrqu.ap_addr.sa_family = ARPHRD_ETHER;
8601
8602         /* Fetch BSSID from the hardware */
8603         if (!(priv->status & (STATUS_ASSOCIATING | STATUS_ASSOCIATED)) ||
8604             priv->status & STATUS_RF_KILL_MASK ||
8605             ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_AP_BSSID,
8606                                 &priv->bssid, &len)) {
8607                 memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN);
8608         } else {
8609                 /* We now have the BSSID, so can finish setting to the full
8610                  * associated state */
8611                 memcpy(wrqu.ap_addr.sa_data, priv->bssid, ETH_ALEN);
8612                 memcpy(priv->ieee->bssid, priv->bssid, ETH_ALEN);
8613                 priv->status &= ~STATUS_ASSOCIATING;
8614                 priv->status |= STATUS_ASSOCIATED;
8615                 netif_carrier_on(priv->net_dev);
8616                 netif_wake_queue(priv->net_dev);
8617         }
8618
8619         if (!(priv->status & STATUS_ASSOCIATED)) {
8620                 IPW_DEBUG_WX("Configuring ESSID\n");
8621                 down(&priv->action_sem);
8622                 /* This is a disassociation event, so kick the firmware to
8623                  * look for another AP */
8624                 if (priv->config & CFG_STATIC_ESSID)
8625                         ipw2100_set_essid(priv, priv->essid, priv->essid_len,
8626                                           0);
8627                 else
8628                         ipw2100_set_essid(priv, NULL, 0, 0);
8629                 up(&priv->action_sem);
8630         }
8631
8632         wireless_send_event(priv->net_dev, SIOCGIWAP, &wrqu, NULL);
8633 }
8634
8635 #define IPW2100_FW_MAJOR_VERSION 1
8636 #define IPW2100_FW_MINOR_VERSION 3
8637
8638 #define IPW2100_FW_MINOR(x) ((x & 0xff) >> 8)
8639 #define IPW2100_FW_MAJOR(x) (x & 0xff)
8640
8641 #define IPW2100_FW_VERSION ((IPW2100_FW_MINOR_VERSION << 8) | \
8642                              IPW2100_FW_MAJOR_VERSION)
8643
8644 #define IPW2100_FW_PREFIX "ipw2100-" __stringify(IPW2100_FW_MAJOR_VERSION) \
8645 "." __stringify(IPW2100_FW_MINOR_VERSION)
8646
8647 #define IPW2100_FW_NAME(x) IPW2100_FW_PREFIX "" x ".fw"
8648
8649 /*
8650
8651 BINARY FIRMWARE HEADER FORMAT
8652
8653 offset      length   desc
8654 0           2        version
8655 2           2        mode == 0:BSS,1:IBSS,2:MONITOR
8656 4           4        fw_len
8657 8           4        uc_len
8658 C           fw_len   firmware data
8659 12 + fw_len uc_len   microcode data
8660
8661 */
8662
8663 struct ipw2100_fw_header {
8664         short version;
8665         short mode;
8666         unsigned int fw_size;
8667         unsigned int uc_size;
8668 } __attribute__ ((packed));
8669
8670 static int ipw2100_mod_firmware_load(struct ipw2100_fw *fw)
8671 {
8672         struct ipw2100_fw_header *h =
8673             (struct ipw2100_fw_header *)fw->fw_entry->data;
8674
8675         if (IPW2100_FW_MAJOR(h->version) != IPW2100_FW_MAJOR_VERSION) {
8676                 printk(KERN_WARNING DRV_NAME ": Firmware image not compatible "
8677                        "(detected version id of %u). "
8678                        "See Documentation/networking/README.ipw2100\n",
8679                        h->version);
8680                 return 1;
8681         }
8682
8683         fw->version = h->version;
8684         fw->fw.data = fw->fw_entry->data + sizeof(struct ipw2100_fw_header);
8685         fw->fw.size = h->fw_size;
8686         fw->uc.data = fw->fw.data + h->fw_size;
8687         fw->uc.size = h->uc_size;
8688
8689         return 0;
8690 }
8691
8692 static int ipw2100_get_firmware(struct ipw2100_priv *priv,
8693                                 struct ipw2100_fw *fw)
8694 {
8695         char *fw_name;
8696         int rc;
8697
8698         IPW_DEBUG_INFO("%s: Using hotplug firmware load.\n",
8699                        priv->net_dev->name);
8700
8701         switch (priv->ieee->iw_mode) {
8702         case IW_MODE_ADHOC:
8703                 fw_name = IPW2100_FW_NAME("-i");
8704                 break;
8705 #ifdef CONFIG_IPW2100_MONITOR
8706         case IW_MODE_MONITOR:
8707                 fw_name = IPW2100_FW_NAME("-p");
8708                 break;
8709 #endif
8710         case IW_MODE_INFRA:
8711         default:
8712                 fw_name = IPW2100_FW_NAME("");
8713                 break;
8714         }
8715
8716         rc = request_firmware(&fw->fw_entry, fw_name, &priv->pci_dev->dev);
8717
8718         if (rc < 0) {
8719                 printk(KERN_ERR DRV_NAME ": "
8720                        "%s: Firmware '%s' not available or load failed.\n",
8721                        priv->net_dev->name, fw_name);
8722                 return rc;
8723         }
8724         IPW_DEBUG_INFO("firmware data %p size %zd\n", fw->fw_entry->data,
8725                        fw->fw_entry->size);
8726
8727         ipw2100_mod_firmware_load(fw);
8728
8729         return 0;
8730 }
8731
8732 static void ipw2100_release_firmware(struct ipw2100_priv *priv,
8733                                      struct ipw2100_fw *fw)
8734 {
8735         fw->version = 0;
8736         if (fw->fw_entry)
8737                 release_firmware(fw->fw_entry);
8738         fw->fw_entry = NULL;
8739 }
8740
8741 static int ipw2100_get_fwversion(struct ipw2100_priv *priv, char *buf,
8742                                  size_t max)
8743 {
8744         char ver[MAX_FW_VERSION_LEN];
8745         u32 len = MAX_FW_VERSION_LEN;
8746         u32 tmp;
8747         int i;
8748         /* firmware version is an ascii string (max len of 14) */
8749         if (ipw2100_get_ordinal(priv, IPW_ORD_STAT_FW_VER_NUM, ver, &len))
8750                 return -EIO;
8751         tmp = max;
8752         if (len >= max)
8753                 len = max - 1;
8754         for (i = 0; i < len; i++)
8755                 buf[i] = ver[i];
8756         buf[i] = '\0';
8757         return tmp;
8758 }
8759
8760 static int ipw2100_get_ucodeversion(struct ipw2100_priv *priv, char *buf,
8761                                     size_t max)
8762 {
8763         u32 ver;
8764         u32 len = sizeof(ver);
8765         /* microcode version is a 32 bit integer */
8766         if (ipw2100_get_ordinal(priv, IPW_ORD_UCODE_VERSION, &ver, &len))
8767                 return -EIO;
8768         return snprintf(buf, max, "%08X", ver);
8769 }
8770
8771 /*
8772  * On exit, the firmware will have been freed from the fw list
8773  */
8774 static int ipw2100_fw_download(struct ipw2100_priv *priv, struct ipw2100_fw *fw)
8775 {
8776         /* firmware is constructed of N contiguous entries, each entry is
8777          * structured as:
8778          *
8779          * offset    sie         desc
8780          * 0         4           address to write to
8781          * 4         2           length of data run
8782          * 6         length      data
8783          */
8784         unsigned int addr;
8785         unsigned short len;
8786
8787         const unsigned char *firmware_data = fw->fw.data;
8788         unsigned int firmware_data_left = fw->fw.size;
8789
8790         while (firmware_data_left > 0) {
8791                 addr = *(u32 *) (firmware_data);
8792                 firmware_data += 4;
8793                 firmware_data_left -= 4;
8794
8795                 len = *(u16 *) (firmware_data);
8796                 firmware_data += 2;
8797                 firmware_data_left -= 2;
8798
8799                 if (len > 32) {
8800                         printk(KERN_ERR DRV_NAME ": "
8801                                "Invalid firmware run-length of %d bytes\n",
8802                                len);
8803                         return -EINVAL;
8804                 }
8805
8806                 write_nic_memory(priv->net_dev, addr, len, firmware_data);
8807                 firmware_data += len;
8808                 firmware_data_left -= len;
8809         }
8810
8811         return 0;
8812 }
8813
8814 struct symbol_alive_response {
8815         u8 cmd_id;
8816         u8 seq_num;
8817         u8 ucode_rev;
8818         u8 eeprom_valid;
8819         u16 valid_flags;
8820         u8 IEEE_addr[6];
8821         u16 flags;
8822         u16 pcb_rev;
8823         u16 clock_settle_time;  // 1us LSB
8824         u16 powerup_settle_time;        // 1us LSB
8825         u16 hop_settle_time;    // 1us LSB
8826         u8 date[3];             // month, day, year
8827         u8 time[2];             // hours, minutes
8828         u8 ucode_valid;
8829 };
8830
8831 static int ipw2100_ucode_download(struct ipw2100_priv *priv,
8832                                   struct ipw2100_fw *fw)
8833 {
8834         struct net_device *dev = priv->net_dev;
8835         const unsigned char *microcode_data = fw->uc.data;
8836         unsigned int microcode_data_left = fw->uc.size;
8837         void __iomem *reg = (void __iomem *)dev->base_addr;
8838
8839         struct symbol_alive_response response;
8840         int i, j;
8841         u8 data;
8842
8843         /* Symbol control */
8844         write_nic_word(dev, IPW2100_CONTROL_REG, 0x703);
8845         readl(reg);
8846         write_nic_word(dev, IPW2100_CONTROL_REG, 0x707);
8847         readl(reg);
8848
8849         /* HW config */
8850         write_nic_byte(dev, 0x210014, 0x72);    /* fifo width =16 */
8851         readl(reg);
8852         write_nic_byte(dev, 0x210014, 0x72);    /* fifo width =16 */
8853         readl(reg);
8854
8855         /* EN_CS_ACCESS bit to reset control store pointer */
8856         write_nic_byte(dev, 0x210000, 0x40);
8857         readl(reg);
8858         write_nic_byte(dev, 0x210000, 0x0);
8859         readl(reg);
8860         write_nic_byte(dev, 0x210000, 0x40);
8861         readl(reg);
8862
8863         /* copy microcode from buffer into Symbol */
8864
8865         while (microcode_data_left > 0) {
8866                 write_nic_byte(dev, 0x210010, *microcode_data++);
8867                 write_nic_byte(dev, 0x210010, *microcode_data++);
8868                 microcode_data_left -= 2;
8869         }
8870
8871         /* EN_CS_ACCESS bit to reset the control store pointer */
8872         write_nic_byte(dev, 0x210000, 0x0);
8873         readl(reg);
8874
8875         /* Enable System (Reg 0)
8876          * first enable causes garbage in RX FIFO */
8877         write_nic_byte(dev, 0x210000, 0x0);
8878         readl(reg);
8879         write_nic_byte(dev, 0x210000, 0x80);
8880         readl(reg);
8881
8882         /* Reset External Baseband Reg */
8883         write_nic_word(dev, IPW2100_CONTROL_REG, 0x703);
8884         readl(reg);
8885         write_nic_word(dev, IPW2100_CONTROL_REG, 0x707);
8886         readl(reg);
8887
8888         /* HW Config (Reg 5) */
8889         write_nic_byte(dev, 0x210014, 0x72);    // fifo width =16
8890         readl(reg);
8891         write_nic_byte(dev, 0x210014, 0x72);    // fifo width =16
8892         readl(reg);
8893
8894         /* Enable System (Reg 0)
8895          * second enable should be OK */
8896         write_nic_byte(dev, 0x210000, 0x00);    // clear enable system
8897         readl(reg);
8898         write_nic_byte(dev, 0x210000, 0x80);    // set enable system
8899
8900         /* check Symbol is enabled - upped this from 5 as it wasn't always
8901          * catching the update */
8902         for (i = 0; i < 10; i++) {
8903                 udelay(10);
8904
8905                 /* check Dino is enabled bit */
8906                 read_nic_byte(dev, 0x210000, &data);
8907                 if (data & 0x1)
8908                         break;
8909         }
8910
8911         if (i == 10) {
8912                 printk(KERN_ERR DRV_NAME ": %s: Error initializing Symbol\n",
8913                        dev->name);
8914                 return -EIO;
8915         }
8916
8917         /* Get Symbol alive response */
8918         for (i = 0; i < 30; i++) {
8919                 /* Read alive response structure */
8920                 for (j = 0;
8921                      j < (sizeof(struct symbol_alive_response) >> 1); j++)
8922                         read_nic_word(dev, 0x210004, ((u16 *) & response) + j);
8923
8924                 if ((response.cmd_id == 1) && (response.ucode_valid == 0x1))
8925                         break;
8926                 udelay(10);
8927         }
8928
8929         if (i == 30) {
8930                 printk(KERN_ERR DRV_NAME
8931                        ": %s: No response from Symbol - hw not alive\n",
8932                        dev->name);
8933                 printk_buf(IPW_DL_ERROR, (u8 *) & response, sizeof(response));
8934                 return -EIO;
8935         }
8936
8937         return 0;
8938 }