drivers/net/wireless/ray_cs.c

   1 /*=============================================================================
   2  *
   3  * A  PCMCIA client driver for the Raylink wireless LAN card.
   4  * The starting point for this module was the skeleton.c in the
   5  * PCMCIA 2.9.12 package written by David Hinds, dahinds@users.sourceforge.net
   6  *
   7  *
   8  * Copyright (c) 1998  Corey Thomas (corey@world.std.com)
   9  *
  10  * This driver is free software; you can redistribute it and/or modify
  11  * it under the terms of version 2 only of the GNU General Public License as
  12  * published by the Free Software Foundation.
  13  *
  14  * It is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
  22  *
  23  * Changes:
  24  * Arnaldo Carvalho de Melo <acme@conectiva.com.br> - 08/08/2000
  25  * - reorganize kmallocs in ray_attach, checking all for failure
  26  *   and releasing the previous allocations if one fails
  27  *
  28  * Daniele Bellucci <bellucda@tiscali.it> - 07/10/2003
  29  * - Audit copy_to_user in ioctl(SIOCGIWESSID)
  30  *
  31 =============================================================================*/
  32
  33 #include <linux/module.h>
  34 #include <linux/kernel.h>
  35 #include <linux/proc_fs.h>
  36 #include <linux/ptrace.h>
  37 #include <linux/seq_file.h>
  38 #include <linux/slab.h>
  39 #include <linux/string.h>
  40 #include <linux/timer.h>
  41 #include <linux/init.h>
  42 #include <linux/netdevice.h>
  43 #include <linux/etherdevice.h>
  44 #include <linux/if_arp.h>
  45 #include <linux/ioport.h>
  46 #include <linux/skbuff.h>
  47 #include <linux/ethtool.h>
  48 #include <linux/ieee80211.h>
  49
  50 #include <pcmcia/cs_types.h>
  51 #include <pcmcia/cs.h>
  52 #include <pcmcia/cistpl.h>
  53 #include <pcmcia/cisreg.h>
  54 #include <pcmcia/ds.h>
  55 #include <pcmcia/mem_op.h>
  56
  57 #include <linux/wireless.h>
  58 #include <net/iw_handler.h>
  59
  60 #include <asm/io.h>
  61 #include <asm/system.h>
  62 #include <asm/byteorder.h>
  63 #include <asm/uaccess.h>
  64
  65 /* Warning : these stuff will slow down the driver... */
  66 #define WIRELESS_SPY            /* Enable spying addresses */
  67 /* Definitions we need for spy */
  68 typedef struct iw_statistics iw_stats;
  69 typedef u_char mac_addr[ETH_ALEN];      /* Hardware address */
  70
  71 #include "rayctl.h"
  72 #include "ray_cs.h"
  73
  74
  75 /** Prototypes based on PCMCIA skeleton driver *******************************/
  76 static int ray_config(struct pcmcia_device *link);
  77 static void ray_release(struct pcmcia_device *link);
  78 static void ray_detach(struct pcmcia_device *p_dev);
  79
  80 /***** Prototypes indicated by device structure ******************************/
  81 static int ray_dev_close(struct net_device *dev);
  82 static int ray_dev_config(struct net_device *dev, struct ifmap *map);
  83 static struct net_device_stats *ray_get_stats(struct net_device *dev);
  84 static int ray_dev_init(struct net_device *dev);
  85
  86 static const struct ethtool_ops netdev_ethtool_ops;
  87
  88 static int ray_open(struct net_device *dev);
  89 static netdev_tx_t ray_dev_start_xmit(struct sk_buff *skb,
  90                                             struct net_device *dev);
  91 static void set_multicast_list(struct net_device *dev);
  92 static void ray_update_multi_list(struct net_device *dev, int all);
  93 static int translate_frame(ray_dev_t *local, struct tx_msg __iomem *ptx,
  94                            unsigned char *data, int len);
  95 static void ray_build_header(ray_dev_t *local, struct tx_msg __iomem *ptx,
  96                              UCHAR msg_type, unsigned char *data);
  97 static void untranslate(ray_dev_t *local, struct sk_buff *skb, int len);
  98 static iw_stats *ray_get_wireless_stats(struct net_device *dev);
  99 static const struct iw_handler_def ray_handler_def;
 100
 101 /***** Prototypes for raylink functions **************************************/
 102 static int asc_to_int(char a);
 103 static void authenticate(ray_dev_t *local);
 104 static int build_auth_frame(ray_dev_t *local, UCHAR *dest, int auth_type);
 105 static void authenticate_timeout(u_long);
 106 static int get_free_ccs(ray_dev_t *local);
 107 static int get_free_tx_ccs(ray_dev_t *local);
 108 static void init_startup_params(ray_dev_t *local);
 109 static int parse_addr(char *in_str, UCHAR *out);
 110 static int ray_hw_xmit(unsigned char *data, int len, struct net_device *dev, UCHAR type);
 111 static int ray_init(struct net_device *dev);
 112 static int interrupt_ecf(ray_dev_t *local, int ccs);
 113 static void ray_reset(struct net_device *dev);
 114 static void ray_update_parm(struct net_device *dev, UCHAR objid, UCHAR *value, int len);
 115 static void verify_dl_startup(u_long);
 116
 117 /* Prototypes for interrpt time functions **********************************/
 118 static irqreturn_t ray_interrupt(int reg, void *dev_id);
 119 static void clear_interrupt(ray_dev_t *local);
 120 static void rx_deauthenticate(ray_dev_t *local, struct rcs __iomem *prcs,
 121                               unsigned int pkt_addr, int rx_len);
 122 static int copy_from_rx_buff(ray_dev_t *local, UCHAR *dest, int pkt_addr, int len);
 123 static void ray_rx(struct net_device *dev, ray_dev_t *local, struct rcs __iomem *prcs);
 124 static void release_frag_chain(ray_dev_t *local, struct rcs __iomem *prcs);
 125 static void rx_authenticate(ray_dev_t *local, struct rcs __iomem *prcs,
 126                             unsigned int pkt_addr, int rx_len);
 127 static void rx_data(struct net_device *dev, struct rcs __iomem *prcs,
 128                     unsigned int pkt_addr, int rx_len);
 129 static void associate(ray_dev_t *local);
 130
 131 /* Card command functions */
 132 static int dl_startup_params(struct net_device *dev);
 133 static void join_net(u_long local);
 134 static void start_net(u_long local);
 135 /* void start_net(ray_dev_t *local); */
 136
 137 /*===========================================================================*/
 138 /* Parameters that can be set with 'insmod' */
 139
 140 /* ADHOC=0, Infrastructure=1 */
 141 static int net_type = ADHOC;
 142
 143 /* Hop dwell time in Kus (1024 us units defined by 802.11) */
 144 static int hop_dwell = 128;
 145
 146 /* Beacon period in Kus */
 147 static int beacon_period = 256;
 148
 149 /* power save mode (0 = off, 1 = save power) */
 150 static int psm;
 151
 152 /* String for network's Extended Service Set ID. 32 Characters max */
 153 static char *essid;
 154
 155 /* Default to encapsulation unless translation requested */
 156 static int translate = 1;
 157
 158 static int country = USA;
 159
 160 static int sniffer;
 161
 162 static int bc;
 163
 164 /* 48 bit physical card address if overriding card's real physical
 165  * address is required.  Since IEEE 802.11 addresses are 48 bits
 166  * like ethernet, an int can't be used, so a string is used. To
 167  * allow use of addresses starting with a decimal digit, the first
 168  * character must be a letter and will be ignored. This letter is
 169  * followed by up to 12 hex digits which are the address.  If less
 170  * than 12 digits are used, the address will be left filled with 0's.
 171  * Note that bit 0 of the first byte is the broadcast bit, and evil
 172  * things will happen if it is not 0 in a card address.
 173  */
 174 static char *phy_addr = NULL;
 175
 176
 177 /* A struct pcmcia_device structure has fields for most things that are needed
 178    to keep track of a socket, but there will usually be some device
 179    specific information that also needs to be kept track of.  The
 180    'priv' pointer in a struct pcmcia_device structure can be used to point to
 181    a device-specific private data structure, like this.
 182 */
 183 static unsigned int ray_mem_speed = 500;
 184
 185 /* WARNING: THIS DRIVER IS NOT CAPABLE OF HANDLING MULTIPLE DEVICES! */
 186 static struct pcmcia_device *this_device = NULL;
 187
 188 MODULE_AUTHOR("Corey Thomas <corey@world.std.com>");
 189 MODULE_DESCRIPTION("Raylink/WebGear wireless LAN driver");
 190 MODULE_LICENSE("GPL");
 191
 192 module_param(net_type, int, 0);
 193 module_param(hop_dwell, int, 0);
 194 module_param(beacon_period, int, 0);
 195 module_param(psm, int, 0);
 196 module_param(essid, charp, 0);
 197 module_param(translate, int, 0);
 198 module_param(country, int, 0);
 199 module_param(sniffer, int, 0);
 200 module_param(bc, int, 0);
 201 module_param(phy_addr, charp, 0);
 202 module_param(ray_mem_speed, int, 0);
 203
 204 static UCHAR b5_default_startup_parms[] = {
 205         0, 0,                   /* Adhoc station */
 206         'L', 'I', 'N', 'U', 'X', 0, 0, 0,       /* 32 char ESSID */
 207         0, 0, 0, 0, 0, 0, 0, 0,
 208         0, 0, 0, 0, 0, 0, 0, 0,
 209         0, 0, 0, 0, 0, 0, 0, 0,
 210         1, 0,                   /* Active scan, CA Mode */
 211         0, 0, 0, 0, 0, 0,       /* No default MAC addr  */
 212         0x7f, 0xff,             /* Frag threshold */
 213         0x00, 0x80,             /* Hop time 128 Kus */
 214         0x01, 0x00,             /* Beacon period 256 Kus */
 215         0x01, 0x07, 0xa3,       /* DTIM, retries, ack timeout */
 216         0x1d, 0x82, 0x4e,       /* SIFS, DIFS, PIFS */
 217         0x7f, 0xff,             /* RTS threshold */
 218         0x04, 0xe2, 0x38, 0xA4, /* scan_dwell, max_scan_dwell */
 219         0x05,                   /* assoc resp timeout thresh */
 220         0x08, 0x02, 0x08,       /* adhoc, infra, super cycle max */
 221         0,                      /* Promiscuous mode */
 222         0x0c, 0x0bd,            /* Unique word */
 223         0x32,                   /* Slot time */
 224         0xff, 0xff,             /* roam-low snr, low snr count */
 225         0x05, 0xff,             /* Infra, adhoc missed bcn thresh */
 226         0x01, 0x0b, 0x4f,       /* USA, hop pattern, hop pat length */
 227 /* b4 - b5 differences start here */
 228         0x00, 0x3f,             /* CW max */
 229         0x00, 0x0f,             /* CW min */
 230         0x04, 0x08,             /* Noise gain, limit offset */
 231         0x28, 0x28,             /* det rssi, med busy offsets */
 232         7,                      /* det sync thresh */
 233         0, 2, 2,                /* test mode, min, max */
 234         0,                      /* allow broadcast SSID probe resp */
 235         0, 0,                   /* privacy must start, can join */
 236         2, 0, 0, 0, 0, 0, 0, 0  /* basic rate set */
 237 };
 238
 239 static UCHAR b4_default_startup_parms[] = {
 240         0, 0,                   /* Adhoc station */
 241         'L', 'I', 'N', 'U', 'X', 0, 0, 0,       /* 32 char ESSID */
 242         0, 0, 0, 0, 0, 0, 0, 0,
 243         0, 0, 0, 0, 0, 0, 0, 0,
 244         0, 0, 0, 0, 0, 0, 0, 0,
 245         1, 0,                   /* Active scan, CA Mode */
 246         0, 0, 0, 0, 0, 0,       /* No default MAC addr  */
 247         0x7f, 0xff,             /* Frag threshold */
 248         0x02, 0x00,             /* Hop time */
 249         0x00, 0x01,             /* Beacon period */
 250         0x01, 0x07, 0xa3,       /* DTIM, retries, ack timeout */
 251         0x1d, 0x82, 0xce,       /* SIFS, DIFS, PIFS */
 252         0x7f, 0xff,             /* RTS threshold */
 253         0xfb, 0x1e, 0xc7, 0x5c, /* scan_dwell, max_scan_dwell */
 254         0x05,                   /* assoc resp timeout thresh */
 255         0x04, 0x02, 0x4,        /* adhoc, infra, super cycle max */
 256         0,                      /* Promiscuous mode */
 257         0x0c, 0x0bd,            /* Unique word */
 258         0x4e,                   /* Slot time (TBD seems wrong) */
 259         0xff, 0xff,             /* roam-low snr, low snr count */
 260         0x05, 0xff,             /* Infra, adhoc missed bcn thresh */
 261         0x01, 0x0b, 0x4e,       /* USA, hop pattern, hop pat length */
 262 /* b4 - b5 differences start here */
 263         0x3f, 0x0f,             /* CW max, min */
 264         0x04, 0x08,             /* Noise gain, limit offset */
 265         0x28, 0x28,             /* det rssi, med busy offsets */
 266         7,                      /* det sync thresh */
 267         0, 2, 2                 /* test mode, min, max */
 268 };
 269
 270 /*===========================================================================*/
 271 static unsigned char eth2_llc[] = { 0xaa, 0xaa, 3, 0, 0, 0 };
 272
 273 static char hop_pattern_length[] = { 1,
 274         USA_HOP_MOD, EUROPE_HOP_MOD,
 275         JAPAN_HOP_MOD, KOREA_HOP_MOD,
 276         SPAIN_HOP_MOD, FRANCE_HOP_MOD,
 277         ISRAEL_HOP_MOD, AUSTRALIA_HOP_MOD,
 278         JAPAN_TEST_HOP_MOD
 279 };
 280
 281 static char rcsid[] =
 282     "Raylink/WebGear wireless LAN - Corey <Thomas corey@world.std.com>";
 283
 284 static const struct net_device_ops ray_netdev_ops = {
 285         .ndo_init               = ray_dev_init,
 286         .ndo_open               = ray_open,
 287         .ndo_stop               = ray_dev_close,
 288         .ndo_start_xmit         = ray_dev_start_xmit,
 289         .ndo_set_config         = ray_dev_config,
 290         .ndo_get_stats          = ray_get_stats,
 291         .ndo_set_multicast_list = set_multicast_list,
 292         .ndo_change_mtu         = eth_change_mtu,
 293         .ndo_set_mac_address    = eth_mac_addr,
 294         .ndo_validate_addr      = eth_validate_addr,
 295 };
 296
 297 /*=============================================================================
 298     ray_attach() creates an "instance" of the driver, allocating
 299     local data structures for one device.  The device is registered
 300     with Card Services.
 301     The dev_link structure is initialized, but we don't actually
 302     configure the card at this point -- we wait until we receive a
 303     card insertion event.
 304 =============================================================================*/
 305 static int ray_probe(struct pcmcia_device *p_dev)
 306 {
 307         ray_dev_t *local;
 308         struct net_device *dev;
 309
 310         dev_dbg(&p_dev->dev, "ray_attach()\n");
 311
 312         /* Allocate space for private device-specific data */
 313         dev = alloc_etherdev(sizeof(ray_dev_t));
 314         if (!dev)
 315                 goto fail_alloc_dev;
 316
 317         local = netdev_priv(dev);
 318         local->finder = p_dev;
 319
 320         /* The io structure describes IO port mapping. None used here */
 321         p_dev->io.NumPorts1 = 0;
 322         p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
 323         p_dev->io.IOAddrLines = 5;
 324
 325         /* Interrupt setup. For PCMCIA, driver takes what's given */
 326         p_dev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
 327         p_dev->irq.Handler = &ray_interrupt;
 328
 329         /* General socket configuration */
 330         p_dev->conf.Attributes = CONF_ENABLE_IRQ;
 331         p_dev->conf.IntType = INT_MEMORY_AND_IO;
 332         p_dev->conf.ConfigIndex = 1;
 333
 334         p_dev->priv = dev;
 335
 336         local->finder = p_dev;
 337         local->card_status = CARD_INSERTED;
 338         local->authentication_state = UNAUTHENTICATED;
 339         local->num_multi = 0;
 340         dev_dbg(&p_dev->dev, "ray_attach p_dev = %p,  dev = %p,  local = %p, intr = %p\n",
 341               p_dev, dev, local, &ray_interrupt);
 342
 343         /* Raylink entries in the device structure */
 344         dev->netdev_ops = &ray_netdev_ops;
 345         SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops);
 346         dev->wireless_handlers = &ray_handler_def;
 347 #ifdef WIRELESS_SPY
 348         local->wireless_data.spy_data = &local->spy_data;
 349         dev->wireless_data = &local->wireless_data;
 350 #endif /* WIRELESS_SPY */
 351
 352
 353         dev_dbg(&p_dev->dev, "ray_cs ray_attach calling ether_setup.)\n");
 354         netif_stop_queue(dev);
 355
 356         init_timer(&local->timer);
 357
 358         this_device = p_dev;
 359         return ray_config(p_dev);
 360
 361 fail_alloc_dev:
 362         return -ENOMEM;
 363 } /* ray_attach */
 364
 365 /*=============================================================================
 366     This deletes a driver "instance".  The device is de-registered
 367     with Card Services.  If it has been released, all local data
 368     structures are freed.  Otherwise, the structures will be freed
 369     when the device is released.
 370 =============================================================================*/
 371 static void ray_detach(struct pcmcia_device *link)
 372 {
 373         struct net_device *dev;
 374         ray_dev_t *local;
 375
 376         dev_dbg(&link->dev, "ray_detach\n");
 377
 378         this_device = NULL;
 379         dev = link->priv;
 380
 381         ray_release(link);
 382
 383         local = netdev_priv(dev);
 384         del_timer(&local->timer);
 385
 386         if (link->priv) {
 387                 if (link->dev_node)
 388                         unregister_netdev(dev);
 389                 free_netdev(dev);
 390         }
 391         dev_dbg(&link->dev, "ray_cs ray_detach ending\n");
 392 } /* ray_detach */
 393
 394 /*=============================================================================
 395     ray_config() is run after a CARD_INSERTION event
 396     is received, to configure the PCMCIA socket, and to make the
 397     ethernet device available to the system.
 398 =============================================================================*/
 399 #define MAX_TUPLE_SIZE 128
 400 static int ray_config(struct pcmcia_device *link)
 401 {
 402         int ret = 0;
 403         int i;
 404         win_req_t req;
 405         memreq_t mem;
 406         struct net_device *dev = (struct net_device *)link->priv;
 407         ray_dev_t *local = netdev_priv(dev);
 408
 409         dev_dbg(&link->dev, "ray_config\n");
 410
 411         /* Determine card type and firmware version */
 412         printk(KERN_INFO "ray_cs Detected: %s%s%s%s\n",
 413                link->prod_id[0] ? link->prod_id[0] : " ",
 414                link->prod_id[1] ? link->prod_id[1] : " ",
 415                link->prod_id[2] ? link->prod_id[2] : " ",
 416                link->prod_id[3] ? link->prod_id[3] : " ");
 417
 418         /* Now allocate an interrupt line.  Note that this does not
 419            actually assign a handler to the interrupt.
 420          */
 421         ret = pcmcia_request_irq(link, &link->irq);
 422         if (ret)
 423                 goto failed;
 424         dev->irq = link->irq.AssignedIRQ;
 425
 426         /* This actually configures the PCMCIA socket -- setting up
 427            the I/O windows and the interrupt mapping.
 428          */
 429         ret = pcmcia_request_configuration(link, &link->conf);
 430         if (ret)
 431                 goto failed;
 432
 433 /*** Set up 32k window for shared memory (transmit and control) ************/
 434         req.Attributes =
 435             WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_CM | WIN_ENABLE | WIN_USE_WAIT;
 436         req.Base = 0;
 437         req.Size = 0x8000;
 438         req.AccessSpeed = ray_mem_speed;
 439         ret = pcmcia_request_window(link, &req, &link->win);
 440         if (ret)
 441                 goto failed;
 442         mem.CardOffset = 0x0000;
 443         mem.Page = 0;
 444         ret = pcmcia_map_mem_page(link, link->win, &mem);
 445         if (ret)
 446                 goto failed;
 447         local->sram = ioremap(req.Base, req.Size);
 448
 449 /*** Set up 16k window for shared memory (receive buffer) ***************/
 450         req.Attributes =
 451             WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_CM | WIN_ENABLE | WIN_USE_WAIT;
 452         req.Base = 0;
 453         req.Size = 0x4000;
 454         req.AccessSpeed = ray_mem_speed;
 455         ret = pcmcia_request_window(link, &req, &local->rmem_handle);
 456         if (ret)
 457                 goto failed;
 458         mem.CardOffset = 0x8000;
 459         mem.Page = 0;
 460         ret = pcmcia_map_mem_page(link, local->rmem_handle, &mem);
 461         if (ret)
 462                 goto failed;
 463         local->rmem = ioremap(req.Base, req.Size);
 464
 465 /*** Set up window for attribute memory ***********************************/
 466         req.Attributes =
 467             WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_AM | WIN_ENABLE | WIN_USE_WAIT;
 468         req.Base = 0;
 469         req.Size = 0x1000;
 470         req.AccessSpeed = ray_mem_speed;
 471         ret = pcmcia_request_window(link, &req, &local->amem_handle);
 472         if (ret)
 473                 goto failed;
 474         mem.CardOffset = 0x0000;
 475         mem.Page = 0;
 476         ret = pcmcia_map_mem_page(link, local->amem_handle, &mem);
 477         if (ret)
 478                 goto failed;
 479         local->amem = ioremap(req.Base, req.Size);
 480
 481         dev_dbg(&link->dev, "ray_config sram=%p\n", local->sram);
 482         dev_dbg(&link->dev, "ray_config rmem=%p\n", local->rmem);
 483         dev_dbg(&link->dev, "ray_config amem=%p\n", local->amem);
 484         if (ray_init(dev) < 0) {
 485                 ray_release(link);
 486                 return -ENODEV;
 487         }
 488
 489         SET_NETDEV_DEV(dev, &link->dev);
 490         i = register_netdev(dev);
 491         if (i != 0) {
 492                 printk("ray_config register_netdev() failed\n");
 493                 ray_release(link);
 494                 return i;
 495         }
 496
 497         strcpy(local->node.dev_name, dev->name);
 498         link->dev_node = &local->node;
 499
 500         printk(KERN_INFO "%s: RayLink, irq %d, hw_addr %pM\n",
 501                dev->name, dev->irq, dev->dev_addr);
 502
 503         return 0;
 504
 505 failed:
 506         ray_release(link);
 507         return -ENODEV;
 508 } /* ray_config */
 509
 510 static inline struct ccs __iomem *ccs_base(ray_dev_t *dev)
 511 {
 512         return dev->sram + CCS_BASE;
 513 }
 514
 515 static inline struct rcs __iomem *rcs_base(ray_dev_t *dev)
 516 {
 517         /*
 518          * This looks nonsensical, since there is a separate
 519          * RCS_BASE. But the difference between a "struct rcs"
 520          * and a "struct ccs" ends up being in the _index_ off
 521          * the base, so the base pointer is the same for both
 522          * ccs/rcs.
 523          */
 524         return dev->sram + CCS_BASE;
 525 }
 526
 527 /*===========================================================================*/
 528 static int ray_init(struct net_device *dev)
 529 {
 530         int i;
 531         UCHAR *p;
 532         struct ccs __iomem *pccs;
 533         ray_dev_t *local = netdev_priv(dev);
 534         struct pcmcia_device *link = local->finder;
 535         dev_dbg(&link->dev, "ray_init(0x%p)\n", dev);
 536         if (!(pcmcia_dev_present(link))) {
 537                 dev_dbg(&link->dev, "ray_init - device not present\n");
 538                 return -1;
 539         }
 540
 541         local->net_type = net_type;
 542         local->sta_type = TYPE_STA;
 543
 544         /* Copy the startup results to local memory */
 545         memcpy_fromio(&local->startup_res, local->sram + ECF_TO_HOST_BASE,
 546                       sizeof(struct startup_res_6));
 547
 548         /* Check Power up test status and get mac address from card */
 549         if (local->startup_res.startup_word != 0x80) {
 550                 printk(KERN_INFO "ray_init ERROR card status = %2x\n",
 551                        local->startup_res.startup_word);
 552                 local->card_status = CARD_INIT_ERROR;
 553                 return -1;
 554         }
 555
 556         local->fw_ver = local->startup_res.firmware_version[0];
 557         local->fw_bld = local->startup_res.firmware_version[1];
 558         local->fw_var = local->startup_res.firmware_version[2];
 559         dev_dbg(&link->dev, "ray_init firmware version %d.%d \n", local->fw_ver,
 560               local->fw_bld);
 561
 562         local->tib_length = 0x20;
 563         if ((local->fw_ver == 5) && (local->fw_bld >= 30))
 564                 local->tib_length = local->startup_res.tib_length;
 565         dev_dbg(&link->dev, "ray_init tib_length = 0x%02x\n", local->tib_length);
 566         /* Initialize CCS's to buffer free state */
 567         pccs = ccs_base(local);
 568         for (i = 0; i < NUMBER_OF_CCS; i++) {
 569                 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
 570         }
 571         init_startup_params(local);
 572
 573         /* copy mac address to startup parameters */
 574         if (parse_addr(phy_addr, local->sparm.b4.a_mac_addr)) {
 575                 p = local->sparm.b4.a_mac_addr;
 576         } else {
 577                 memcpy(&local->sparm.b4.a_mac_addr,
 578                        &local->startup_res.station_addr, ADDRLEN);
 579                 p = local->sparm.b4.a_mac_addr;
 580         }
 581
 582         clear_interrupt(local); /* Clear any interrupt from the card */
 583         local->card_status = CARD_AWAITING_PARAM;
 584         dev_dbg(&link->dev, "ray_init ending\n");
 585         return 0;
 586 } /* ray_init */
 587
 588 /*===========================================================================*/
 589 /* Download startup parameters to the card and command it to read them       */
 590 static int dl_startup_params(struct net_device *dev)
 591 {
 592         int ccsindex;
 593         ray_dev_t *local = netdev_priv(dev);
 594         struct ccs __iomem *pccs;
 595         struct pcmcia_device *link = local->finder;
 596
 597         dev_dbg(&link->dev, "dl_startup_params entered\n");
 598         if (!(pcmcia_dev_present(link))) {
 599                 dev_dbg(&link->dev, "ray_cs dl_startup_params - device not present\n");
 600                 return -1;
 601         }
 602
 603         /* Copy parameters to host to ECF area */
 604         if (local->fw_ver == 0x55)
 605                 memcpy_toio(local->sram + HOST_TO_ECF_BASE, &local->sparm.b4,
 606                             sizeof(struct b4_startup_params));
 607         else
 608                 memcpy_toio(local->sram + HOST_TO_ECF_BASE, &local->sparm.b5,
 609                             sizeof(struct b5_startup_params));
 610
 611         /* Fill in the CCS fields for the ECF */
 612         if ((ccsindex = get_free_ccs(local)) < 0)
 613                 return -1;
 614         local->dl_param_ccs = ccsindex;
 615         pccs = ccs_base(local) + ccsindex;
 616         writeb(CCS_DOWNLOAD_STARTUP_PARAMS, &pccs->cmd);
 617         dev_dbg(&link->dev, "dl_startup_params start ccsindex = %d\n",
 618               local->dl_param_ccs);
 619         /* Interrupt the firmware to process the command */
 620         if (interrupt_ecf(local, ccsindex)) {
 621                 printk(KERN_INFO "ray dl_startup_params failed - "
 622                        "ECF not ready for intr\n");
 623                 local->card_status = CARD_DL_PARAM_ERROR;
 624                 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
 625                 return -2;
 626         }
 627         local->card_status = CARD_DL_PARAM;
 628         /* Start kernel timer to wait for dl startup to complete. */
 629         local->timer.expires = jiffies + HZ / 2;
 630         local->timer.data = (long)local;
 631         local->timer.function = &verify_dl_startup;
 632         add_timer(&local->timer);
 633         dev_dbg(&link->dev,
 634               "ray_cs dl_startup_params started timer for verify_dl_startup\n");
 635         return 0;
 636 } /* dl_startup_params */
 637
 638 /*===========================================================================*/
 639 static void init_startup_params(ray_dev_t *local)
 640 {
 641         int i;
 642
 643         if (country > JAPAN_TEST)
 644                 country = USA;
 645         else if (country < USA)
 646                 country = USA;
 647         /* structure for hop time and beacon period is defined here using
 648          * New 802.11D6.1 format.  Card firmware is still using old format
 649          * until version 6.
 650          *    Before                    After
 651          *    a_hop_time ms byte        a_hop_time ms byte
 652          *    a_hop_time 2s byte        a_hop_time ls byte
 653          *    a_hop_time ls byte        a_beacon_period ms byte
 654          *    a_beacon_period           a_beacon_period ls byte
 655          *
 656          *    a_hop_time = uS           a_hop_time = KuS
 657          *    a_beacon_period = hops    a_beacon_period = KuS
 658          *//* 64ms = 010000 */
 659         if (local->fw_ver == 0x55) {
 660                 memcpy((UCHAR *) &local->sparm.b4, b4_default_startup_parms,
 661                        sizeof(struct b4_startup_params));
 662                 /* Translate sane kus input values to old build 4/5 format */
 663                 /* i = hop time in uS truncated to 3 bytes */
 664                 i = (hop_dwell * 1024) & 0xffffff;
 665                 local->sparm.b4.a_hop_time[0] = (i >> 16) & 0xff;
 666                 local->sparm.b4.a_hop_time[1] = (i >> 8) & 0xff;
 667                 local->sparm.b4.a_beacon_period[0] = 0;
 668                 local->sparm.b4.a_beacon_period[1] =
 669                     ((beacon_period / hop_dwell) - 1) & 0xff;
 670                 local->sparm.b4.a_curr_country_code = country;
 671                 local->sparm.b4.a_hop_pattern_length =
 672                     hop_pattern_length[(int)country] - 1;
 673                 if (bc) {
 674                         local->sparm.b4.a_ack_timeout = 0x50;
 675                         local->sparm.b4.a_sifs = 0x3f;
 676                 }
 677         } else { /* Version 5 uses real kus values */
 678                 memcpy((UCHAR *) &local->sparm.b5, b5_default_startup_parms,
 679                        sizeof(struct b5_startup_params));
 680
 681                 local->sparm.b5.a_hop_time[0] = (hop_dwell >> 8) & 0xff;
 682                 local->sparm.b5.a_hop_time[1] = hop_dwell & 0xff;
 683                 local->sparm.b5.a_beacon_period[0] =
 684                     (beacon_period >> 8) & 0xff;
 685                 local->sparm.b5.a_beacon_period[1] = beacon_period & 0xff;
 686                 if (psm)
 687                         local->sparm.b5.a_power_mgt_state = 1;
 688                 local->sparm.b5.a_curr_country_code = country;
 689                 local->sparm.b5.a_hop_pattern_length =
 690                     hop_pattern_length[(int)country];
 691         }
 692
 693         local->sparm.b4.a_network_type = net_type & 0x01;
 694         local->sparm.b4.a_acting_as_ap_status = TYPE_STA;
 695
 696         if (essid != NULL)
 697                 strncpy(local->sparm.b4.a_current_ess_id, essid, ESSID_SIZE);
 698 } /* init_startup_params */
 699
 700 /*===========================================================================*/
 701 static void verify_dl_startup(u_long data)
 702 {
 703         ray_dev_t *local = (ray_dev_t *) data;
 704         struct ccs __iomem *pccs = ccs_base(local) + local->dl_param_ccs;
 705         UCHAR status;
 706         struct pcmcia_device *link = local->finder;
 707
 708         if (!(pcmcia_dev_present(link))) {
 709                 dev_dbg(&link->dev, "ray_cs verify_dl_startup - device not present\n");
 710                 return;
 711         }
 712 #if 0
 713         {
 714                 int i;
 715                 printk(KERN_DEBUG
 716                        "verify_dl_startup parameters sent via ccs %d:\n",
 717                        local->dl_param_ccs);
 718                 for (i = 0; i < sizeof(struct b5_startup_params); i++) {
 719                         printk(" %2x",
 720                                (unsigned int)readb(local->sram +
 721                                                    HOST_TO_ECF_BASE + i));
 722                 }
 723                 printk("\n");
 724         }
 725 #endif
 726
 727         status = readb(&pccs->buffer_status);
 728         if (status != CCS_BUFFER_FREE) {
 729                 printk(KERN_INFO
 730                        "Download startup params failed.  Status = %d\n",
 731                        status);
 732                 local->card_status = CARD_DL_PARAM_ERROR;
 733                 return;
 734         }
 735         if (local->sparm.b4.a_network_type == ADHOC)
 736                 start_net((u_long) local);
 737         else
 738                 join_net((u_long) local);
 739
 740         return;
 741 } /* end verify_dl_startup */
 742
 743 /*===========================================================================*/
 744 /* Command card to start a network */
 745 static void start_net(u_long data)
 746 {
 747         ray_dev_t *local = (ray_dev_t *) data;
 748         struct ccs __iomem *pccs;
 749         int ccsindex;
 750         struct pcmcia_device *link = local->finder;
 751         if (!(pcmcia_dev_present(link))) {
 752                 dev_dbg(&link->dev, "ray_cs start_net - device not present\n");
 753                 return;
 754         }
 755         /* Fill in the CCS fields for the ECF */
 756         if ((ccsindex = get_free_ccs(local)) < 0)
 757                 return;
 758         pccs = ccs_base(local) + ccsindex;
 759         writeb(CCS_START_NETWORK, &pccs->cmd);
 760         writeb(0, &pccs->var.start_network.update_param);
 761         /* Interrupt the firmware to process the command */
 762         if (interrupt_ecf(local, ccsindex)) {
 763                 dev_dbg(&link->dev, "ray start net failed - card not ready for intr\n");
 764                 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
 765                 return;
 766         }
 767         local->card_status = CARD_DOING_ACQ;
 768         return;
 769 } /* end start_net */
 770
 771 /*===========================================================================*/
 772 /* Command card to join a network */
 773 static void join_net(u_long data)
 774 {
 775         ray_dev_t *local = (ray_dev_t *) data;
 776
 777         struct ccs __iomem *pccs;
 778         int ccsindex;
 779         struct pcmcia_device *link = local->finder;
 780
 781         if (!(pcmcia_dev_present(link))) {
 782                 dev_dbg(&link->dev, "ray_cs join_net - device not present\n");
 783                 return;
 784         }
 785         /* Fill in the CCS fields for the ECF */
 786         if ((ccsindex = get_free_ccs(local)) < 0)
 787                 return;
 788         pccs = ccs_base(local) + ccsindex;
 789         writeb(CCS_JOIN_NETWORK, &pccs->cmd);
 790         writeb(0, &pccs->var.join_network.update_param);
 791         writeb(0, &pccs->var.join_network.net_initiated);
 792         /* Interrupt the firmware to process the command */
 793         if (interrupt_ecf(local, ccsindex)) {
 794                 dev_dbg(&link->dev, "ray join net failed - card not ready for intr\n");
 795                 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
 796                 return;
 797         }
 798         local->card_status = CARD_DOING_ACQ;
 799         return;
 800 }
 801
 802 /*============================================================================
 803     After a card is removed, ray_release() will unregister the net
 804     device, and release the PCMCIA configuration.  If the device is
 805     still open, this will be postponed until it is closed.
 806 =============================================================================*/
 807 static void ray_release(struct pcmcia_device *link)
 808 {
 809         struct net_device *dev = link->priv;
 810         ray_dev_t *local = netdev_priv(dev);
 811         int i;
 812
 813         dev_dbg(&link->dev, "ray_release\n");
 814
 815         del_timer(&local->timer);
 816
 817         iounmap(local->sram);
 818         iounmap(local->rmem);
 819         iounmap(local->amem);
 820         /* Do bother checking to see if these succeed or not */
 821         i = pcmcia_release_window(link, local->amem_handle);
 822         if (i != 0)
 823                 dev_dbg(&link->dev, "ReleaseWindow(local->amem) ret = %x\n", i);
 824         i = pcmcia_release_window(link, local->rmem_handle);
 825         if (i != 0)
 826                 dev_dbg(&link->dev, "ReleaseWindow(local->rmem) ret = %x\n", i);
 827         pcmcia_disable_device(link);
 828
 829         dev_dbg(&link->dev, "ray_release ending\n");
 830 }
 831
 832 static int ray_suspend(struct pcmcia_device *link)
 833 {
 834         struct net_device *dev = link->priv;
 835
 836         if (link->open)
 837                 netif_device_detach(dev);
 838
 839         return 0;
 840 }
 841
 842 static int ray_resume(struct pcmcia_device *link)
 843 {
 844         struct net_device *dev = link->priv;
 845
 846         if (link->open) {
 847                 ray_reset(dev);
 848                 netif_device_attach(dev);
 849         }
 850
 851         return 0;
 852 }
 853
 854 /*===========================================================================*/
 855 static int ray_dev_init(struct net_device *dev)
 856 {
 857 #ifdef RAY_IMMEDIATE_INIT
 858         int i;
 859 #endif /* RAY_IMMEDIATE_INIT */
 860         ray_dev_t *local = netdev_priv(dev);
 861         struct pcmcia_device *link = local->finder;
 862
 863         dev_dbg(&link->dev, "ray_dev_init(dev=%p)\n", dev);
 864         if (!(pcmcia_dev_present(link))) {
 865                 dev_dbg(&link->dev, "ray_dev_init - device not present\n");
 866                 return -1;
 867         }
 868 #ifdef RAY_IMMEDIATE_INIT
 869         /* Download startup parameters */
 870         if ((i = dl_startup_params(dev)) < 0) {
 871                 printk(KERN_INFO "ray_dev_init dl_startup_params failed - "
 872                        "returns 0x%x\n", i);
 873                 return -1;
 874         }
 875 #else /* RAY_IMMEDIATE_INIT */
 876         /* Postpone the card init so that we can still configure the card,
 877          * for example using the Wireless Extensions. The init will happen
 878          * in ray_open() - Jean II */
 879         dev_dbg(&link->dev,
 880               "ray_dev_init: postponing card init to ray_open() ; Status = %d\n",
 881               local->card_status);
 882 #endif /* RAY_IMMEDIATE_INIT */
 883
 884         /* copy mac and broadcast addresses to linux device */
 885         memcpy(dev->dev_addr, &local->sparm.b4.a_mac_addr, ADDRLEN);
 886         memset(dev->broadcast, 0xff, ETH_ALEN);
 887
 888         dev_dbg(&link->dev, "ray_dev_init ending\n");
 889         return 0;
 890 }
 891
 892 /*===========================================================================*/
 893 static int ray_dev_config(struct net_device *dev, struct ifmap *map)
 894 {
 895         ray_dev_t *local = netdev_priv(dev);
 896         struct pcmcia_device *link = local->finder;
 897         /* Dummy routine to satisfy device structure */
 898         dev_dbg(&link->dev, "ray_dev_config(dev=%p,ifmap=%p)\n", dev, map);
 899         if (!(pcmcia_dev_present(link))) {
 900                 dev_dbg(&link->dev, "ray_dev_config - device not present\n");
 901                 return -1;
 902         }
 903
 904         return 0;
 905 }
 906
 907 /*===========================================================================*/
 908 static netdev_tx_t ray_dev_start_xmit(struct sk_buff *skb,
 909                                             struct net_device *dev)
 910 {
 911         ray_dev_t *local = netdev_priv(dev);
 912         struct pcmcia_device *link = local->finder;
 913         short length = skb->len;
 914
 915         if (!pcmcia_dev_present(link)) {
 916                 dev_dbg(&link->dev, "ray_dev_start_xmit - device not present\n");
 917                 dev_kfree_skb(skb);
 918                 return NETDEV_TX_OK;
 919         }
 920
 921         dev_dbg(&link->dev, "ray_dev_start_xmit(skb=%p, dev=%p)\n", skb, dev);
 922         if (local->authentication_state == NEED_TO_AUTH) {
 923                 dev_dbg(&link->dev, "ray_cs Sending authentication request.\n");
 924                 if (!build_auth_frame(local, local->auth_id, OPEN_AUTH_REQUEST)) {
 925                         local->authentication_state = AUTHENTICATED;
 926                         netif_stop_queue(dev);
 927                         return NETDEV_TX_BUSY;
 928                 }
 929         }
 930
 931         if (length < ETH_ZLEN) {
 932                 if (skb_padto(skb, ETH_ZLEN))
 933                         return NETDEV_TX_OK;
 934                 length = ETH_ZLEN;
 935         }
 936         switch (ray_hw_xmit(skb->data, length, dev, DATA_TYPE)) {
 937         case XMIT_NO_CCS:
 938         case XMIT_NEED_AUTH:
 939                 netif_stop_queue(dev);
 940                 return NETDEV_TX_BUSY;
 941         case XMIT_NO_INTR:
 942         case XMIT_MSG_BAD:
 943         case XMIT_OK:
 944         default:
 945                 dev->trans_start = jiffies;
 946                 dev_kfree_skb(skb);
 947         }
 948
 949         return NETDEV_TX_OK;
 950 } /* ray_dev_start_xmit */
 951
 952 /*===========================================================================*/
 953 static int ray_hw_xmit(unsigned char *data, int len, struct net_device *dev,
 954                        UCHAR msg_type)
 955 {
 956         ray_dev_t *local = netdev_priv(dev);
 957         struct ccs __iomem *pccs;
 958         int ccsindex;
 959         int offset;
 960         struct tx_msg __iomem *ptx;     /* Address of xmit buffer in PC space */
 961         short int addr;         /* Address of xmit buffer in card space */
 962
 963         pr_debug("ray_hw_xmit(data=%p, len=%d, dev=%p)\n", data, len, dev);
 964         if (len + TX_HEADER_LENGTH > TX_BUF_SIZE) {
 965                 printk(KERN_INFO "ray_hw_xmit packet too large: %d bytes\n",
 966                        len);
 967                 return XMIT_MSG_BAD;
 968         }
 969         switch (ccsindex = get_free_tx_ccs(local)) {
 970         case ECCSBUSY:
 971                 pr_debug("ray_hw_xmit tx_ccs table busy\n");
 972         case ECCSFULL:
 973                 pr_debug("ray_hw_xmit No free tx ccs\n");
 974         case ECARDGONE:
 975                 netif_stop_queue(dev);
 976                 return XMIT_NO_CCS;
 977         default:
 978                 break;
 979         }
 980         addr = TX_BUF_BASE + (ccsindex << 11);
 981
 982         if (msg_type == DATA_TYPE) {
 983                 local->stats.tx_bytes += len;
 984                 local->stats.tx_packets++;
 985         }
 986
 987         ptx = local->sram + addr;
 988
 989         ray_build_header(local, ptx, msg_type, data);
 990         if (translate) {
 991                 offset = translate_frame(local, ptx, data, len);
 992         } else { /* Encapsulate frame */
 993                 /* TBD TIB length will move address of ptx->var */
 994                 memcpy_toio(&ptx->var, data, len);
 995                 offset = 0;
 996         }
 997
 998         /* fill in the CCS */
 999         pccs = ccs_base(local) + ccsindex;
1000         len += TX_HEADER_LENGTH + offset;
1001         writeb(CCS_TX_REQUEST, &pccs->cmd);
1002         writeb(addr >> 8, &pccs->var.tx_request.tx_data_ptr[0]);
1003         writeb(local->tib_length, &pccs->var.tx_request.tx_data_ptr[1]);
1004         writeb(len >> 8, &pccs->var.tx_request.tx_data_length[0]);
1005         writeb(len & 0xff, &pccs->var.tx_request.tx_data_length[1]);
1006 /* TBD still need psm_cam? */
1007         writeb(PSM_CAM, &pccs->var.tx_request.pow_sav_mode);
1008         writeb(local->net_default_tx_rate, &pccs->var.tx_request.tx_rate);
1009         writeb(0, &pccs->var.tx_request.antenna);
1010         pr_debug("ray_hw_xmit default_tx_rate = 0x%x\n",
1011               local->net_default_tx_rate);
1012
1013         /* Interrupt the firmware to process the command */
1014         if (interrupt_ecf(local, ccsindex)) {
1015                 pr_debug("ray_hw_xmit failed - ECF not ready for intr\n");
1016 /* TBD very inefficient to copy packet to buffer, and then not
1017    send it, but the alternative is to queue the messages and that
1018    won't be done for a while.  Maybe set tbusy until a CCS is free?
1019 */
1020                 writeb(CCS_BUFFER_FREE, &pccs->buffer_status);
1021                 return XMIT_NO_INTR;
1022         }
1023         return XMIT_OK;
1024 } /* end ray_hw_xmit */
1025
1026 /*===========================================================================*/
1027 static int translate_frame(ray_dev_t *local, struct tx_msg __iomem *ptx,
1028                            unsigned char *data, int len)
1029 {
1030         __be16 proto = ((struct ethhdr *)data)->h_proto;
1031         if (ntohs(proto) >= 1536) { /* DIX II ethernet frame */
1032                 pr_debug("ray_cs translate_frame DIX II\n");
1033                 /* Copy LLC header to card buffer */
1034                 memcpy_toio(&ptx->var, eth2_llc, sizeof(eth2_llc));
1035                 memcpy_toio(((void __iomem *)&ptx->var) + sizeof(eth2_llc),
1036                             (UCHAR *) &proto, 2);
1037                 if (proto == htons(ETH_P_AARP) || proto == htons(ETH_P_IPX)) {
1038                         /* This is the selective translation table, only 2 entries */
1039                         writeb(0xf8,
1040                                &((struct snaphdr_t __iomem *)ptx->var)->org[3]);
1041                 }
1042                 /* Copy body of ethernet packet without ethernet header */
1043                 memcpy_toio((void __iomem *)&ptx->var +
1044                             sizeof(struct snaphdr_t), data + ETH_HLEN,
1045                             len - ETH_HLEN);
1046                 return (int)sizeof(struct snaphdr_t) - ETH_HLEN;
1047         } else { /* already  802 type, and proto is length */
1048                 pr_debug("ray_cs translate_frame 802\n");
1049                 if (proto == htons(0xffff)) { /* evil netware IPX 802.3 without LLC */
1050                         pr_debug("ray_cs translate_frame evil IPX\n");
1051                         memcpy_toio(&ptx->var, data + ETH_HLEN, len - ETH_HLEN);
1052                         return 0 - ETH_HLEN;
1053                 }
1054                 memcpy_toio(&ptx->var, data + ETH_HLEN, len - ETH_HLEN);
1055                 return 0 - ETH_HLEN;
1056         }
1057         /* TBD do other frame types */
1058 } /* end translate_frame */
1059
1060 /*===========================================================================*/
1061 static void ray_build_header(ray_dev_t *local, struct tx_msg __iomem *ptx,
1062                              UCHAR msg_type, unsigned char *data)
1063 {
1064         writeb(PROTOCOL_VER | msg_type, &ptx->mac.frame_ctl_1);
1065 /*** IEEE 802.11 Address field assignments *************
1066                 TODS    FROMDS  addr_1          addr_2          addr_3  addr_4
1067 Adhoc           0       0       dest            src (terminal)  BSSID   N/A
1068 AP to Terminal  0       1       dest            AP(BSSID)       source  N/A
1069 Terminal to AP  1       0       AP(BSSID)       src (terminal)  dest    N/A
1070 AP to AP        1       1       dest AP         src AP          dest    source
1071 *******************************************************/
1072         if (local->net_type == ADHOC) {
1073                 writeb(0, &ptx->mac.frame_ctl_2);
1074                 memcpy_toio(ptx->mac.addr_1, ((struct ethhdr *)data)->h_dest,
1075                             2 * ADDRLEN);
1076                 memcpy_toio(ptx->mac.addr_3, local->bss_id, ADDRLEN);
1077         } else { /* infrastructure */
1078
1079                 if (local->sparm.b4.a_acting_as_ap_status) {
1080                         writeb(FC2_FROM_DS, &ptx->mac.frame_ctl_2);
1081                         memcpy_toio(ptx->mac.addr_1,
1082                                     ((struct ethhdr *)data)->h_dest, ADDRLEN);
1083                         memcpy_toio(ptx->mac.addr_2, local->bss_id, 6);
1084                         memcpy_toio(ptx->mac.addr_3,
1085                                     ((struct ethhdr *)data)->h_source, ADDRLEN);
1086                 } else { /* Terminal */
1087
1088                         writeb(FC2_TO_DS, &ptx->mac.frame_ctl_2);
1089                         memcpy_toio(ptx->mac.addr_1, local->bss_id, ADDRLEN);
1090                         memcpy_toio(ptx->mac.addr_2,
1091                                     ((struct ethhdr *)data)->h_source, ADDRLEN);
1092                         memcpy_toio(ptx->mac.addr_3,
1093                                     ((struct ethhdr *)data)->h_dest, ADDRLEN);
1094                 }
1095         }
1096 } /* end encapsulate_frame */
1097
1098 /*===========================================================================*/
1099
1100 static void netdev_get_drvinfo(struct net_device *dev,
1101                                struct ethtool_drvinfo *info)
1102 {
1103         strcpy(info->driver, "ray_cs");
1104 }
1105
1106 static const struct ethtool_ops netdev_ethtool_ops = {
1107         .get_drvinfo = netdev_get_drvinfo,
1108 };
1109
1110 /*====================================================================*/
1111
1112 /*------------------------------------------------------------------*/
1113 /*
1114  * Wireless Handler : get protocol name
1115  */
1116 static int ray_get_name(struct net_device *dev,
1117                         struct iw_request_info *info, char *cwrq, char *extra)
1118 {
1119         strcpy(cwrq, "IEEE 802.11-FH");
1120         return 0;
1121 }
1122
1123 /*------------------------------------------------------------------*/
1124 /*
1125  * Wireless Handler : set frequency
1126  */
1127 static int ray_set_freq(struct net_device *dev,
1128                         struct iw_request_info *info,
1129                         struct iw_freq *fwrq, char *extra)
1130 {
1131         ray_dev_t *local = netdev_priv(dev);
1132         int err = -EINPROGRESS; /* Call commit handler */
1133
1134         /* Reject if card is already initialised */
1135         if (local->card_status != CARD_AWAITING_PARAM)
1136                 return -EBUSY;
1137
1138         /* Setting by channel number */
1139         if ((fwrq->m > USA_HOP_MOD) || (fwrq->e > 0))
1140                 err = -EOPNOTSUPP;
1141         else
1142                 local->sparm.b5.a_hop_pattern = fwrq->m;
1143
1144         return err;
1145 }
1146
1147 /*------------------------------------------------------------------*/
1148 /*
1149  * Wireless Handler : get frequency
1150  */
1151 static int ray_get_freq(struct net_device *dev,
1152                         struct iw_request_info *info,
1153                         struct iw_freq *fwrq, char *extra)
1154 {
1155         ray_dev_t *local = netdev_priv(dev);
1156
1157         fwrq->m = local->sparm.b5.a_hop_pattern;
1158         fwrq->e = 0;
1159         return 0;
1160 }
1161
1162 /*------------------------------------------------------------------*/
1163 /*
1164  * Wireless Handler : set ESSID
1165  */
1166 static int ray_set_essid(struct net_device *dev,
1167                          struct iw_request_info *info,
1168                          struct iw_point *dwrq, char *extra)
1169 {
1170         ray_dev_t *local = netdev_priv(dev);
1171
1172         /* Reject if card is already initialised */
1173         if (local->card_status != CARD_AWAITING_PARAM)
1174                 return -EBUSY;
1175
1176         /* Check if we asked for `any' */
1177         if (dwrq->flags == 0) {
1178                 /* Corey : can you do that ? */
1179                 return -EOPNOTSUPP;
1180         } else {
1181                 /* Check the size of the string */
1182                 if (dwrq->length > IW_ESSID_MAX_SIZE) {
1183                         return -E2BIG;
1184                 }
1185
1186                 /* Set the ESSID in the card */
1187                 memset(local->sparm.b5.a_current_ess_id, 0, IW_ESSID_MAX_SIZE);
1188                 memcpy(local->sparm.b5.a_current_ess_id, extra, dwrq->length);
1189         }
1190
1191         return -EINPROGRESS;    /* Call commit handler */
1192 }
1193
1194 /*------------------------------------------------------------------*/
1195 /*
1196  * Wireless Handler : get ESSID
1197  */
1198 static int ray_get_essid(struct net_device *dev,
1199                          struct iw_request_info *info,
1200                          struct iw_point *dwrq, char *extra)
1201 {
1202         ray_dev_t *local = netdev_priv(dev);
1203
1204         /* Get the essid that was set */
1205         memcpy(extra, local->sparm.b5.a_current_ess_id, IW_ESSID_MAX_SIZE);
1206
1207         /* Push it out ! */
1208         dwrq->length = strlen(extra);
1209         dwrq->flags = 1;        /* active */
1210
1211         return 0;
1212 }
1213
1214 /*------------------------------------------------------------------*/
1215 /*
1216  * Wireless Handler : get AP address
1217  */
1218 static int ray_get_wap(struct net_device *dev,
1219                        struct iw_request_info *info,
1220                        struct sockaddr *awrq, char *extra)
1221 {
1222         ray_dev_t *local = netdev_priv(dev);
1223
1224         memcpy(awrq->sa_data, local->bss_id, ETH_ALEN);
1225         awrq->sa_family = ARPHRD_ETHER;
1226
1227         return 0;
1228 }
1229
1230 /*------------------------------------------------------------------*/
1231 /*
1232  * Wireless Handler : set Bit-Rate
1233  */
1234 static int ray_set_rate(struct net_device *dev,
1235                         struct iw_request_info *info,
1236                         struct iw_param *vwrq, char *extra)
1237 {
1238         ray_dev_t *local = netdev_priv(dev);
1239
1240         /* Reject if card is already initialised */
1241         if (local->card_status != CARD_AWAITING_PARAM)
1242                 return -EBUSY;
1243
1244         /* Check if rate is in range */
1245         if ((vwrq->value != 1000000) && (vwrq->value != 2000000))
1246                 return -EINVAL;
1247
1248         /* Hack for 1.5 Mb/s instead of 2 Mb/s */
1249         if ((local->fw_ver == 0x55) &&  /* Please check */
1250             (vwrq->value == 2000000))
1251                 local->net_default_tx_rate = 3;
1252         else
1253                 local->net_default_tx_rate = vwrq->value / 500000;
1254
1255         return 0;
1256 }
1257
1258 /*------------------------------------------------------------------*/
1259 /*
1260  * Wireless Handler : get Bit-Rate
1261  */
1262 static int ray_get_rate(struct net_device *dev,
1263                         struct iw_request_info *info,
1264                         struct iw_param *vwrq, char *extra)
1265 {
1266         ray_dev_t *local = netdev_priv(dev);
1267
1268         if (local->net_default_tx_rate == 3)
1269                 vwrq->value = 2000000;  /* Hum... */
1270         else
1271                 vwrq->value = local->net_default_tx_rate * 500000;
1272         vwrq->fixed = 0;        /* We are in auto mode */
1273
1274         return 0;
1275 }
1276
1277 /*------------------------------------------------------------------*/
1278 /*
1279  * Wireless Handler : set RTS threshold
1280  */
1281 static int ray_set_rts(struct net_device *dev,
1282                        struct iw_request_info *info,
1283                        struct iw_param *vwrq, char *extra)
1284 {
1285         ray_dev_t *local = netdev_priv(dev);
1286         int rthr = vwrq->value;
1287
1288         /* Reject if card is already initialised */
1289         if (local->card_status != CARD_AWAITING_PARAM)
1290                 return -EBUSY;
1291
1292         /* if(wrq->u.rts.fixed == 0) we should complain */
1293         if (vwrq->disabled)
1294                 rthr = 32767;
1295         else {
1296                 if ((rthr < 0) || (rthr > 2347))   /* What's the max packet size ??? */
1297                         return -EINVAL;
1298         }
1299         local->sparm.b5.a_rts_threshold[0] = (rthr >> 8) & 0xFF;
1300         local->sparm.b5.a_rts_threshold[1] = rthr & 0xFF;
1301
1302         return -EINPROGRESS;    /* Call commit handler */
1303 }
1304
1305 /*------------------------------------------------------------------*/
1306 /*
1307  * Wireless Handler : get RTS threshold
1308  */
1309 static int ray_get_rts(struct net_device *dev,
1310                        struct iw_request_info *info,
1311                        struct iw_param *vwrq, char *extra)
1312 {
1313         ray_dev_t *local = netdev_priv(dev);
1314
1315         vwrq->value = (local->sparm.b5.a_rts_threshold[0] << 8)
1316             + local->sparm.b5.a_rts_threshold[1];
1317         vwrq->disabled = (vwrq->value == 32767);
1318         vwrq->fixed = 1;
1319
1320         return 0;
1321 }
1322
1323 /*------------------------------------------------------------------*/
1324 /*
1325  * Wireless Handler : set Fragmentation threshold
1326  */
1327 static int ray_set_frag(struct net_device *dev,
1328                         struct iw_request_info *info,
1329                         struct iw_param *vwrq, char *extra)
1330 {
1331         ray_dev_t *local = netdev_priv(dev);
1332         int fthr = vwrq->value;
1333
1334         /* Reject if card is already initialised */
1335         if (local->card_status != CARD_AWAITING_PARAM)
1336                 return -EBUSY;
1337
1338         /* if(wrq->u.frag.fixed == 0) should complain */
1339         if (vwrq->disabled)
1340                 fthr = 32767;
1341         else {
1342                 if ((fthr < 256) || (fthr > 2347))      /* To check out ! */
1343                         return -EINVAL;
1344         }
1345         local->sparm.b5.a_frag_threshold[0] = (fthr >> 8) & 0xFF;
1346         local->sparm.b5.a_frag_threshold[1] = fthr & 0xFF;
1347
1348         return -EINPROGRESS;    /* Call commit handler */
1349 }
1350
1351 /*------------------------------------------------------------------*/
1352 /*
1353  * Wireless Handler : get Fragmentation threshold
1354  */
1355 static int ray_get_frag(struct net_device *dev,
1356                         struct iw_request_info *info,
1357                         struct iw_param *vwrq, char *extra)
1358 {
1359         ray_dev_t *local = netdev_priv(dev);
1360
1361         vwrq->value = (local->sparm.b5.a_frag_threshold[0] << 8)
1362             + local->sparm.b5.a_frag_threshold[1];
1363         vwrq->disabled = (vwrq->value == 32767);
1364         vwrq->fixed = 1;
1365
1366         return 0;
1367 }
1368
1369 /*------------------------------------------------------------------*/
1370 /*
1371  * Wireless Handler : set Mode of Operation
1372  */
1373 static int ray_set_mode(struct net_device *dev,
1374                         struct iw_request_info *info, __u32 *uwrq, char *extra)
1375 {
1376         ray_dev_t *local = netdev_priv(dev);
1377         int err = -EINPROGRESS; /* Call commit handler */
1378         char card_mode = 1;
1379
1380         /* Reject if card is already initialised */
1381         if (local->card_status != CARD_AWAITING_PARAM)
1382                 return -EBUSY;
1383
1384         switch (*uwrq) {
1385         case IW_MODE_ADHOC:
1386                 card_mode = 0;
1387                 /* Fall through */
1388         case IW_MODE_INFRA:
1389                 local->sparm.b5.a_network_type = card_mode;
1390                 break;
1391         default:
1392                 err = -EINVAL;
1393         }
1394
1395         return err;
1396 }
1397
1398 /*------------------------------------------------------------------*/
1399 /*
1400  * Wireless Handler : get Mode of Operation
1401  */
1402 static int ray_get_mode(struct net_device *dev,
1403                         struct iw_request_info *info, __u32 *uwrq, char *extra)
1404 {
1405         ray_dev_t *local = netdev_priv(dev);
1406
1407         if (local->sparm.b5.a_network_type)
1408                 *uwrq = IW_MODE_INFRA;
1409         else
1410                 *uwrq = IW_MODE_ADHOC;
1411
1412         return 0;
1413 }
1414
1415 /*------------------------------------------------------------------*/
1416 /*
1417  * Wireless Handler : get range info
1418  */
1419 static int ray_get_range(struct net_device *dev,
1420                          struct iw_request_info *info,
1421                          struct iw_point *dwrq, char *extra)
1422 {
1423         struct iw_range *range = (struct iw_range *)extra;
1424
1425         memset((char *)range, 0, sizeof(struct iw_range));
1426
1427         /* Set the length (very important for backward compatibility) */
1428         dwrq->length = sizeof(struct iw_range);
1429
1430         /* Set the Wireless Extension versions */
1431         range->we_version_compiled = WIRELESS_EXT;
1432         range->we_version_source = 9;
1433
1434         /* Set information in the range struct */
1435         range->throughput = 1.1 * 1000 * 1000;  /* Put the right number here */
1436         range->num_channels = hop_pattern_length[(int)country];
1437         range->num_frequency = 0;
1438         range->max_qual.qual = 0;
1439         range->max_qual.level = 255;    /* What's the correct value ? */
1440         range->max_qual.noise = 255;    /* Idem */
1441         range->num_bitrates = 2;
1442         range->bitrate[0] = 1000000;    /* 1 Mb/s */
1443         range->bitrate[1] = 2000000;    /* 2 Mb/s */
1444         return 0;
1445 }
1446
1447 /*------------------------------------------------------------------*/
1448 /*
1449  * Wireless Private Handler : set framing mode
1450  */
1451 static int ray_set_framing(struct net_device *dev,
1452                            struct iw_request_info *info,
1453                            union iwreq_data *wrqu, char *extra)
1454 {
1455         translate = *(extra);   /* Set framing mode */
1456
1457         return 0;
1458 }
1459
1460 /*------------------------------------------------------------------*/
1461 /*
1462  * Wireless Private Handler : get framing mode
1463  */
1464 static int ray_get_framing(struct net_device *dev,
1465                            struct iw_request_info *info,
1466                            union iwreq_data *wrqu, char *extra)
1467 {
1468         *(extra) = translate;
1469
1470         return 0;
1471 }
1472
1473 /*------------------------------------------------------------------*/
1474 /*
1475  * Wireless Private Handler : get country
1476  */
1477 static int ray_get_country(struct net_device *dev,
1478                            struct iw_request_info *info,
1479                            union iwreq_data *wrqu, char *extra)
1480 {
1481         *(extra) = country;
1482
1483         return 0;
1484 }
1485
1486 /*------------------------------------------------------------------*/
1487 /*
1488  * Commit handler : called after a bunch of SET operations
1489  */
1490 static int ray_commit(struct net_device *dev, struct iw_request_info *info,     /* NULL */
1491                       void *zwrq,       /* NULL */
1492                       char *extra)
1493 { /* NULL */
1494         return 0;
1495 }
1496
1497 /*------------------------------------------------------------------*/
1498 /*
1499  * Stats handler : return Wireless Stats
1500  */
1501 static iw_stats *ray_get_wireless_stats(struct net_device *dev)
1502 {
1503         ray_dev_t *local = netdev_priv(dev);
1504         struct pcmcia_device *link = local->finder;
1505         struct status __iomem *p = local->sram + STATUS_BASE;
1506
1507         local->wstats.status = local->card_status;
1508 #ifdef WIRELESS_SPY
1509         if ((local->spy_data.spy_number > 0)
1510             && (local->sparm.b5.a_network_type == 0)) {
1511                 /* Get it from the first node in spy list */
1512                 local->wstats.qual.qual = local->spy_data.spy_stat[0].qual;
1513                 local->wstats.qual.level = local->spy_data.spy_stat[0].level;
1514                 local->wstats.qual.noise = local->spy_data.spy_stat[0].noise;
1515                 local->wstats.qual.updated =
1516                     local->spy_data.spy_stat[0].updated;
1517         }
1518 #endif /* WIRELESS_SPY */
1519
1520         if (pcmcia_dev_present(link)) {
1521                 local->wstats.qual.noise = readb(&p->rxnoise);
1522                 local->wstats.qual.updated |= 4;
1523         }
1524
1525         return &local->wstats;
1526 } /* end ray_get_wireless_stats */
1527
1528 /*------------------------------------------------------------------*/
1529 /*
1530  * Structures to export the Wireless Handlers
1531  */
1532
1533 static const iw_handler ray_handler[] = {
1534         [SIOCSIWCOMMIT - SIOCIWFIRST] = (iw_handler) ray_commit,
1535         [SIOCGIWNAME - SIOCIWFIRST] = (iw_handler) ray_get_name,
1536         [SIOCSIWFREQ - SIOCIWFIRST] = (iw_handler) ray_set_freq,
1537         [SIOCGIWFREQ - SIOCIWFIRST] = (iw_handler) ray_get_freq,
1538         [SIOCSIWMODE - SIOCIWFIRST] = (iw_handler) ray_set_mode,
1539         [SIOCGIWMODE - SIOCIWFIRST] = (iw_handler) ray_get_mode,
1540         [SIOCGIWRANGE - SIOCIWFIRST] = (iw_handler) ray_get_range,
1541 #ifdef WIRELESS_SPY
1542         [SIOCSIWSPY - SIOCIWFIRST] = (iw_handler) iw_handler_set_spy,
1543         [SIOCGIWSPY - SIOCIWFIRST] = (iw_handler) iw_handler_get_spy,
1544         [SIOCSIWTHRSPY - SIOCIWFIRST] = (iw_handler) iw_handler_set_thrspy,
1545         [SIOCGIWTHRSPY - SIOCIWFIRST] = (iw_handler) iw_handler_get_thrspy,
1546 #endif /* WIRELESS_SPY */
1547         [SIOCGIWAP - SIOCIWFIRST] = (iw_handler) ray_get_wap,
1548         [SIOCSIWESSID - SIOCIWFIRST] = (iw_handler) ray_set_essid,
1549         [SIOCGIWESSID - SIOCIWFIRST] = (iw_handler) ray_get_essid,
1550         [SIOCSIWRATE - SIOCIWFIRST] = (iw_handler) ray_set_rate,
1551         [SIOCGIWRATE - SIOCIWFIRST] = (iw_handler) ray_get_rate,
1552         [SIOCSIWRTS - SIOCIWFIRST] = (iw_handler) ray_set_rts,
1553         [SIOCGIWRTS - SIOCIWFIRST] = (iw_handler) ray_get_rts,
1554         [SIOCSIWFRAG - SIOCIWFIRST] = (iw_handler) ray_set_frag,
1555         [SIOCGIWFRAG - SIOCIWFIRST] = (iw_handler) ray_get_frag,
1556 };
1557
1558 #define SIOCSIPFRAMING  SIOCIWFIRSTPRIV /* Set framing mode */
1559 #define SIOCGIPFRAMING  SIOCIWFIRSTPRIV + 1     /* Get framing mode */
1560 #define SIOCGIPCOUNTRY  SIOCIWFIRSTPRIV + 3     /* Get country code */
1561
1562 static const iw_handler ray_private_handler[] = {
1563         [0] = (iw_handler) ray_set_framing,
1564         [1] = (iw_handler) ray_get_framing,
1565         [3] = (iw_handler) ray_get_country,
1566 };
1567
1568 static const struct iw_priv_args ray_private_args[] = {
1569 /* cmd,         set_args,       get_args,       name */
1570         {SIOCSIPFRAMING, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, 0,
1571          "set_framing"},
1572         {SIOCGIPFRAMING, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1,
1573          "get_framing"},
1574         {SIOCGIPCOUNTRY, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1,
1575          "get_country"},
1576 };
1577
1578 static const struct iw_handler_def ray_handler_def = {
1579         .num_standard = ARRAY_SIZE(ray_handler),
1580         .num_private = ARRAY_SIZE(ray_private_handler),
1581         .num_private_args = ARRAY_SIZE(ray_private_args),
1582         .standard = ray_handler,
1583         .private = ray_private_handler,
1584         .private_args = ray_private_args,
1585         .get_wireless_stats = ray_get_wireless_stats,
1586 };
1587
1588 /*===========================================================================*/
1589 static int ray_open(struct net_device *dev)
1590 {
1591         ray_dev_t *local = netdev_priv(dev);
1592         struct pcmcia_device *link;
1593         link = local->finder;
1594
1595         dev_dbg(&link->dev, "ray_open('%s')\n", dev->name);
1596
1597         if (link->open == 0)
1598                 local->num_multi = 0;
1599         link->open++;
1600
1601         /* If the card is not started, time to start it ! - Jean II */
1602         if (local->card_status == CARD_AWAITING_PARAM) {
1603                 int i;
1604
1605                 dev_dbg(&link->dev, "ray_open: doing init now !\n");
1606
1607                 /* Download startup parameters */
1608                 if ((i = dl_startup_params(dev)) < 0) {
1609                         printk(KERN_INFO
1610                                "ray_dev_init dl_startup_params failed - "
1611                                "returns 0x%x\n", i);
1612                         return -1;
1613                 }
1614         }
1615
1616         if (sniffer)
1617                 netif_stop_queue(dev);
1618         else
1619                 netif_start_queue(dev);
1620
1621         dev_dbg(&link->dev, "ray_open ending\n");
1622         return 0;
1623 } /* end ray_open */
1624
1625 /*===========================================================================*/
1626 static int ray_dev_close(struct net_device *dev)
1627 {
1628         ray_dev_t *local = netdev_priv(dev);
1629         struct pcmcia_device *link;
1630         link = local->finder;
1631
1632         dev_dbg(&link->dev, "ray_dev_close('%s')\n", dev->name);
1633
1634         link->open--;
1635         netif_stop_queue(dev);
1636
1637         /* In here, we should stop the hardware (stop card from beeing active)
1638          * and set local->card_status to CARD_AWAITING_PARAM, so that while the
1639          * card is closed we can chage its configuration.
1640          * Probably also need a COR reset to get sane state - Jean II */
1641
1642         return 0;
1643 } /* end ray_dev_close */
1644
1645 /*===========================================================================*/
1646 static void ray_reset(struct net_device *dev)
1647 {
1648         pr_debug("ray_reset entered\n");
1649         return;
1650 }
1651
1652 /*===========================================================================*/
1653 /* Cause a firmware interrupt if it is ready for one                         */
1654 /* Return nonzero if not ready                                               */
1655 static int interrupt_ecf(ray_dev_t *local, int ccs)
1656 {
1657         int i = 50;
1658         struct pcmcia_device *link = local->finder;
1659
1660         if (!(pcmcia_dev_present(link))) {
1661                 dev_dbg(&link->dev, "ray_cs interrupt_ecf - device not present\n");
1662                 return -1;
1663         }
1664         dev_dbg(&link->dev, "interrupt_ecf(local=%p, ccs = 0x%x\n", local, ccs);
1665
1666         while (i &&
1667                (readb(local->amem + CIS_OFFSET + ECF_INTR_OFFSET) &
1668                 ECF_INTR_SET))
1669                 i--;
1670         if (i == 0) {
1671                 dev_dbg(&link->dev, "ray_cs interrupt_ecf card not ready for interrupt\n");
1672                 return -1;
1673         }
1674         /* Fill the mailbox, then kick the card */
1675         writeb(ccs, local->sram + SCB_BASE);
1676         writeb(ECF_INTR_SET, local->amem + CIS_OFFSET + ECF_INTR_OFFSET);
1677         return 0;
1678 } /* interrupt_ecf */
1679
1680 /*===========================================================================*/
1681 /* Get next free transmit CCS                                                */
1682 /* Return - index of current tx ccs                                          */
1683 static int get_free_tx_ccs(ray_dev_t *local)
1684 {
1685         int i;
1686         struct ccs __iomem *pccs = ccs_base(local);
1687         struct pcmcia_device *link = local->finder;
1688
1689         if (!(pcmcia_dev_present(link))) {
1690                 dev_dbg(&link->dev, "ray_cs get_free_tx_ccs - device not present\n");
1691                 return ECARDGONE;
1692         }
1693
1694         if (test_and_set_bit(0, &local->tx_ccs_lock)) {
1695                 dev_dbg(&link->dev, "ray_cs tx_ccs_lock busy\n");
1696                 return ECCSBUSY;
1697         }
1698
1699         for (i = 0; i < NUMBER_OF_TX_CCS; i++) {
1700                 if (readb(&(pccs + i)->buffer_status) == CCS_BUFFER_FREE) {
1701                         writeb(CCS_BUFFER_BUSY, &(pccs + i)->buffer_status);
1702                         writeb(CCS_END_LIST, &(pccs + i)->link);
1703                         local->tx_ccs_lock = 0;
1704                         return i;
1705                 }
1706         }
1707         local->tx_ccs_lock = 0;
1708         dev_dbg(&link->dev, "ray_cs ERROR no free tx CCS for raylink card\n");
1709         return ECCSFULL;
1710 } /* get_free_tx_ccs */
1711
1712 /*===========================================================================*/
1713 /* Get next free CCS                                                         */
1714 /* Return - index of current ccs                                             */
1715 static int get_free_ccs(ray_dev_t *local)
1716 {
1717         int i;
1718         struct ccs __iomem *pccs = ccs_base(local);
1719         struct pcmcia_device *link = local->finder;
1720
1721         if (!(pcmcia_dev_present(link))) {
1722                 dev_dbg(&link->dev, "ray_cs get_free_ccs - device not present\n");
1723                 return ECARDGONE;
1724         }
1725         if (test_and_set_bit(0, &local->ccs_lock)) {
1726                 dev_dbg(&link->dev, "ray_cs ccs_lock busy\n");
1727                 return ECCSBUSY;
1728         }
1729
1730         for (i = NUMBER_OF_TX_CCS; i < NUMBER_OF_CCS; i++) {
1731                 if (readb(&(pccs + i)->buffer_status) == CCS_BUFFER_FREE) {
1732                         writeb(CCS_BUFFER_BUSY, &(pccs + i)->buffer_status);
1733                         writeb(CCS_END_LIST, &(pccs + i)->link);
1734                         local->ccs_lock = 0;
1735                         return i;
1736                 }
1737         }
1738         local->ccs_lock = 0;
1739         dev_dbg(&link->dev, "ray_cs ERROR no free CCS for raylink card\n");
1740         return ECCSFULL;
1741 } /* get_free_ccs */
1742
1743 /*===========================================================================*/
1744 static void authenticate_timeout(u_long data)
1745 {
1746         ray_dev_t *local = (ray_dev_t *) data;
1747         del_timer(&local->timer);
1748         printk(KERN_INFO "ray_cs Authentication with access point failed"
1749                " - timeout\n");
1750         join_net((u_long) local);
1751 }
1752
1753 /*===========================================================================*/
1754 static int asc_to_int(char a)
1755 {
1756         if (a < '0')
1757                 return -1;
1758         if (a <= '9')
1759                 return (a - '0');
1760         if (a < 'A')
1761                 return -1;
1762         if (a <= 'F')
1763                 return (10 + a - 'A');
1764         if (a < 'a')
1765                 return -1;
1766         if (a <= 'f')
1767                 return (10 + a - 'a');
1768         return -1;
1769 }
1770
1771 /*===========================================================================*/
1772 static int parse_addr(char *in_str, UCHAR *out)
1773 {
1774         int len;
1775         int i, j, k;
1776         int status;
1777
1778         if (in_str == NULL)
1779                 return 0;
1780         if ((len = strlen(in_str)) < 2)
1781                 return 0;
1782         memset(out, 0, ADDRLEN);
1783
1784         status = 1;
1785         j = len - 1;
1786         if (j > 12)
1787                 j = 12;
1788         i = 5;
1789
1790         while (j > 0) {
1791                 if ((k = asc_to_int(in_str[j--])) != -1)
1792                         out[i] = k;
1793                 else
1794                         return 0;
1795
1796                 if (j == 0)
1797                         break;
1798                 if ((k = asc_to_int(in_str[j--])) != -1)
1799                         out[i] += k << 4;
1800                 else
1801                         return 0;
1802                 if (!i--)
1803                         break;
1804         }
1805         return status;
1806 }
1807
1808 /*===========================================================================*/
1809 static struct net_device_stats *ray_get_stats(struct net_device *dev)
1810 {
1811         ray_dev_t *local = netdev_priv(dev);
1812         struct pcmcia_device *link = local->finder;
1813         struct status __iomem *p = local->sram + STATUS_BASE;
1814         if (!(pcmcia_dev_present(link))) {
1815                 dev_dbg(&link->dev, "ray_cs net_device_stats - device not present\n");
1816                 return &local->stats;
1817         }
1818         if (readb(&p->mrx_overflow_for_host)) {
1819                 local->stats.rx_over_errors += swab16(readw(&p->mrx_overflow));
1820                 writeb(0, &p->mrx_overflow);
1821                 writeb(0, &p->mrx_overflow_for_host);
1822         }
1823         if (readb(&p->mrx_checksum_error_for_host)) {
1824                 local->stats.rx_crc_errors +=
1825                     swab16(readw(&p->mrx_checksum_error));
1826                 writeb(0, &p->mrx_checksum_error);
1827                 writeb(0, &p->mrx_checksum_error_for_host);
1828         }
1829         if (readb(&p->rx_hec_error_for_host)) {
1830                 local->stats.rx_frame_errors += swab16(readw(&p->rx_hec_error));
1831                 writeb(0, &p->rx_hec_error);
1832                 writeb(0, &p->rx_hec_error_for_host);
1833         }
1834         return &local->stats;
1835 }
1836
1837 /*===========================================================================*/
1838 static void ray_update_parm(struct net_device *dev, UCHAR objid, UCHAR *value,
1839                             int len)
1840 {
1841         ray_dev_t *local = netdev_priv(dev);
1842         struct pcmcia_device *link = local->finder;
1843         int ccsindex;
1844         int i;
1845         struct ccs __iomem *pccs;
1846
1847         if (!(pcmcia_dev_present(link))) {
1848                 dev_dbg(&link->dev, "ray_update_parm - device not present\n");
1849                 return;
1850         }
1851
1852         if ((ccsindex = get_free_ccs(local)) < 0) {
1853                 dev_dbg(&link->dev, "ray_update_parm - No free ccs\n");
1854                 return;
1855         }
1856         pccs = ccs_base(local) + ccsindex;
1857         writeb(CCS_UPDATE_PARAMS, &pccs->cmd);
1858         writeb(objid, &pccs->var.update_param.object_id);
1859         writeb(1, &pccs->var.update_param.number_objects);
1860         writeb(0, &pccs->var.update_param.failure_cause);
1861         for (i = 0; i < len; i++) {
1862                 writeb(value[i], local->sram + HOST_TO_ECF_BASE);
1863         }
1864         /* Interrupt the firmware to process the command */
1865         if (interrupt_ecf(local, ccsindex)) {
1866                 dev_dbg(&link->dev, "ray_cs associate failed - ECF not ready for intr\n");
1867                 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
1868         }
1869 }
1870
1871 /*===========================================================================*/
1872 static void ray_update_multi_list(struct net_device *dev, int all)
1873 {
1874         struct dev_mc_list *dmi, **dmip;
1875         int ccsindex;
1876         struct ccs __iomem *pccs;
1877         int i = 0;
1878         ray_dev_t *local = netdev_priv(dev);
1879         struct pcmcia_device *link = local->finder;
1880         void __iomem *p = local->sram + HOST_TO_ECF_BASE;
1881
1882         if (!(pcmcia_dev_present(link))) {
1883                 dev_dbg(&link->dev, "ray_update_multi_list - device not present\n");
1884                 return;
1885         } else
1886                 dev_dbg(&link->dev, "ray_update_multi_list(%p)\n", dev);
1887         if ((ccsindex = get_free_ccs(local)) < 0) {
1888                 dev_dbg(&link->dev, "ray_update_multi - No free ccs\n");
1889                 return;
1890         }
1891         pccs = ccs_base(local) + ccsindex;
1892         writeb(CCS_UPDATE_MULTICAST_LIST, &pccs->cmd);
1893
1894         if (all) {
1895                 writeb(0xff, &pccs->var);
1896                 local->num_multi = 0xff;
1897         } else {
1898                 /* Copy the kernel's list of MC addresses to card */
1899                 for (dmip = &dev->mc_list; (dmi = *dmip) != NULL;
1900                      dmip = &dmi->next) {
1901                         memcpy_toio(p, dmi->dmi_addr, ETH_ALEN);
1902                         dev_dbg(&link->dev,
1903                               "ray_update_multi add addr %02x%02x%02x%02x%02x%02x\n",
1904                               dmi->dmi_addr[0], dmi->dmi_addr[1],
1905                               dmi->dmi_addr[2], dmi->dmi_addr[3],
1906                               dmi->dmi_addr[4], dmi->dmi_addr[5]);
1907                         p += ETH_ALEN;
1908                         i++;
1909                 }
1910                 if (i > 256 / ADDRLEN)
1911                         i = 256 / ADDRLEN;
1912                 writeb((UCHAR) i, &pccs->var);
1913                 dev_dbg(&link->dev, "ray_cs update_multi %d addresses in list\n", i);
1914                 /* Interrupt the firmware to process the command */
1915                 local->num_multi = i;
1916         }
1917         if (interrupt_ecf(local, ccsindex)) {
1918                 dev_dbg(&link->dev,
1919                       "ray_cs update_multi failed - ECF not ready for intr\n");
1920                 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
1921         }
1922 } /* end ray_update_multi_list */
1923
1924 /*===========================================================================*/
1925 static void set_multicast_list(struct net_device *dev)
1926 {
1927         ray_dev_t *local = netdev_priv(dev);
1928         UCHAR promisc;
1929
1930         pr_debug("ray_cs set_multicast_list(%p)\n", dev);
1931
1932         if (dev->flags & IFF_PROMISC) {
1933                 if (local->sparm.b5.a_promiscuous_mode == 0) {
1934                         pr_debug("ray_cs set_multicast_list promisc on\n");
1935                         local->sparm.b5.a_promiscuous_mode = 1;
1936                         promisc = 1;
1937                         ray_update_parm(dev, OBJID_promiscuous_mode,
1938                                         &promisc, sizeof(promisc));
1939                 }
1940         } else {
1941                 if (local->sparm.b5.a_promiscuous_mode == 1) {
1942                         pr_debug("ray_cs set_multicast_list promisc off\n");
1943                         local->sparm.b5.a_promiscuous_mode = 0;
1944                         promisc = 0;
1945                         ray_update_parm(dev, OBJID_promiscuous_mode,
1946                                         &promisc, sizeof(promisc));
1947                 }
1948         }
1949
1950         if (dev->flags & IFF_ALLMULTI)
1951                 ray_update_multi_list(dev, 1);
1952         else {
1953                 if (local->num_multi != dev->mc_count)
1954                         ray_update_multi_list(dev, 0);
1955         }
1956 } /* end set_multicast_list */
1957
1958 /*=============================================================================
1959  * All routines below here are run at interrupt time.
1960 =============================================================================*/
1961 static irqreturn_t ray_interrupt(int irq, void *dev_id)
1962 {
1963         struct net_device *dev = (struct net_device *)dev_id;
1964         struct pcmcia_device *link;
1965         ray_dev_t *local;
1966         struct ccs __iomem *pccs;
1967         struct rcs __iomem *prcs;
1968         UCHAR rcsindex;
1969         UCHAR tmp;
1970         UCHAR cmd;
1971         UCHAR status;
1972
1973         if (dev == NULL)        /* Note that we want interrupts with dev->start == 0 */
1974                 return IRQ_NONE;
1975
1976         pr_debug("ray_cs: interrupt for *dev=%p\n", dev);
1977
1978         local = netdev_priv(dev);
1979         link = (struct pcmcia_device *)local->finder;
1980         if (!pcmcia_dev_present(link)) {
1981                 pr_debug(
1982                         "ray_cs interrupt from device not present or suspended.\n");
1983                 return IRQ_NONE;
1984         }
1985         rcsindex = readb(&((struct scb __iomem *)(local->sram))->rcs_index);
1986
1987         if (rcsindex >= (NUMBER_OF_CCS + NUMBER_OF_RCS)) {
1988                 dev_dbg(&link->dev, "ray_cs interrupt bad rcsindex = 0x%x\n", rcsindex);
1989                 clear_interrupt(local);
1990                 return IRQ_HANDLED;
1991         }
1992         if (rcsindex < NUMBER_OF_CCS) { /* If it's a returned CCS */
1993                 pccs = ccs_base(local) + rcsindex;
1994                 cmd = readb(&pccs->cmd);
1995                 status = readb(&pccs->buffer_status);
1996                 switch (cmd) {
1997                 case CCS_DOWNLOAD_STARTUP_PARAMS:       /* Happens in firmware someday */
1998                         del_timer(&local->timer);
1999                         if (status == CCS_COMMAND_COMPLETE) {
2000                                 dev_dbg(&link->dev,
2001                                       "ray_cs interrupt download_startup_parameters OK\n");
2002                         } else {
2003                                 dev_dbg(&link->dev,
2004                                       "ray_cs interrupt download_startup_parameters fail\n");
2005                         }
2006                         break;
2007                 case CCS_UPDATE_PARAMS:
2008                         dev_dbg(&link->dev, "ray_cs interrupt update params done\n");
2009                         if (status != CCS_COMMAND_COMPLETE) {
2010                                 tmp =
2011                                     readb(&pccs->var.update_param.
2012                                           failure_cause);
2013                                 dev_dbg(&link->dev,
2014                                       "ray_cs interrupt update params failed - reason %d\n",
2015                                       tmp);
2016                         }
2017                         break;
2018                 case CCS_REPORT_PARAMS:
2019                         dev_dbg(&link->dev, "ray_cs interrupt report params done\n");
2020                         break;
2021                 case CCS_UPDATE_MULTICAST_LIST: /* Note that this CCS isn't returned */
2022                         dev_dbg(&link->dev,
2023                               "ray_cs interrupt CCS Update Multicast List done\n");
2024                         break;
2025                 case CCS_UPDATE_POWER_SAVINGS_MODE:
2026                         dev_dbg(&link->dev,
2027                               "ray_cs interrupt update power save mode done\n");
2028                         break;
2029                 case CCS_START_NETWORK:
2030                 case CCS_JOIN_NETWORK:
2031                         if (status == CCS_COMMAND_COMPLETE) {
2032                                 if (readb
2033                                     (&pccs->var.start_network.net_initiated) ==
2034                                     1) {
2035                                         dev_dbg(&link->dev,
2036                                               "ray_cs interrupt network \"%s\" started\n",
2037                                               local->sparm.b4.a_current_ess_id);
2038                                 } else {
2039                                         dev_dbg(&link->dev,
2040                                               "ray_cs interrupt network \"%s\" joined\n",
2041                                               local->sparm.b4.a_current_ess_id);
2042                                 }
2043                                 memcpy_fromio(&local->bss_id,
2044                                               pccs->var.start_network.bssid,
2045                                               ADDRLEN);
2046
2047                                 if (local->fw_ver == 0x55)
2048                                         local->net_default_tx_rate = 3;
2049                                 else
2050                                         local->net_default_tx_rate =
2051                                             readb(&pccs->var.start_network.
2052                                                   net_default_tx_rate);
2053                                 local->encryption =
2054                                     readb(&pccs->var.start_network.encryption);
2055                                 if (!sniffer && (local->net_type == INFRA)
2056                                     && !(local->sparm.b4.a_acting_as_ap_status)) {
2057                                         authenticate(local);
2058                                 }
2059                                 local->card_status = CARD_ACQ_COMPLETE;
2060                         } else {
2061                                 local->card_status = CARD_ACQ_FAILED;
2062
2063                                 del_timer(&local->timer);
2064                                 local->timer.expires = jiffies + HZ * 5;
2065                                 local->timer.data = (long)local;
2066                                 if (status == CCS_START_NETWORK) {
2067                                         dev_dbg(&link->dev,
2068                                               "ray_cs interrupt network \"%s\" start failed\n",
2069                                               local->sparm.b4.a_current_ess_id);
2070                                         local->timer.function = &start_net;
2071                                 } else {
2072                                         dev_dbg(&link->dev,
2073                                               "ray_cs interrupt network \"%s\" join failed\n",
2074                                               local->sparm.b4.a_current_ess_id);
2075                                         local->timer.function = &join_net;
2076                                 }
2077                                 add_timer(&local->timer);
2078                         }
2079                         break;
2080                 case CCS_START_ASSOCIATION:
2081                         if (status == CCS_COMMAND_COMPLETE) {
2082                                 local->card_status = CARD_ASSOC_COMPLETE;
2083                                 dev_dbg(&link->dev, "ray_cs association successful\n");
2084                         } else {
2085                                 dev_dbg(&link->dev, "ray_cs association failed,\n");
2086                                 local->card_status = CARD_ASSOC_FAILED;
2087                                 join_net((u_long) local);
2088                         }
2089                         break;
2090                 case CCS_TX_REQUEST:
2091                         if (status == CCS_COMMAND_COMPLETE) {
2092                                 dev_dbg(&link->dev,
2093                                       "ray_cs interrupt tx request complete\n");
2094                         } else {
2095                                 dev_dbg(&link->dev,
2096                                       "ray_cs interrupt tx request failed\n");
2097                         }
2098                         if (!sniffer)
2099                                 netif_start_queue(dev);
2100                         netif_wake_queue(dev);
2101                         break;
2102                 case CCS_TEST_MEMORY:
2103                         dev_dbg(&link->dev, "ray_cs interrupt mem test done\n");
2104                         break;
2105                 case CCS_SHUTDOWN:
2106                         dev_dbg(&link->dev,
2107                               "ray_cs interrupt Unexpected CCS returned - Shutdown\n");
2108                         break;
2109                 case CCS_DUMP_MEMORY:
2110                         dev_dbg(&link->dev, "ray_cs interrupt dump memory done\n");
2111                         break;
2112                 case CCS_START_TIMER:
2113                         dev_dbg(&link->dev,
2114                               "ray_cs interrupt DING - raylink timer expired\n");
2115                         break;
2116                 default:
2117                         dev_dbg(&link->dev,
2118                               "ray_cs interrupt Unexpected CCS 0x%x returned 0x%x\n",
2119                               rcsindex, cmd);
2120                 }
2121                 writeb(CCS_BUFFER_FREE, &pccs->buffer_status);
2122         } else { /* It's an RCS */
2123
2124                 prcs = rcs_base(local) + rcsindex;
2125
2126                 switch (readb(&prcs->interrupt_id)) {
2127                 case PROCESS_RX_PACKET:
2128                         ray_rx(dev, local, prcs);
2129                         break;
2130                 case REJOIN_NET_COMPLETE:
2131                         dev_dbg(&link->dev, "ray_cs interrupt rejoin net complete\n");
2132                         local->card_status = CARD_ACQ_COMPLETE;
2133                         /* do we need to clear tx buffers CCS's? */
2134                         if (local->sparm.b4.a_network_type == ADHOC) {
2135                                 if (!sniffer)
2136                                         netif_start_queue(dev);
2137                         } else {
2138                                 memcpy_fromio(&local->bss_id,
2139                                               prcs->var.rejoin_net_complete.
2140                                               bssid, ADDRLEN);
2141                                 dev_dbg(&link->dev,
2142                                       "ray_cs new BSSID = %02x%02x%02x%02x%02x%02x\n",
2143                                       local->bss_id[0], local->bss_id[1],
2144                                       local->bss_id[2], local->bss_id[3],
2145                                       local->bss_id[4], local->bss_id[5]);
2146                                 if (!sniffer)
2147                                         authenticate(local);
2148                         }
2149                         break;
2150                 case ROAMING_INITIATED:
2151                         dev_dbg(&link->dev, "ray_cs interrupt roaming initiated\n");
2152                         netif_stop_queue(dev);
2153                         local->card_status = CARD_DOING_ACQ;
2154                         break;
2155                 case JAPAN_CALL_SIGN_RXD:
2156                         dev_dbg(&link->dev, "ray_cs interrupt japan call sign rx\n");
2157                         break;
2158                 default:
2159                         dev_dbg(&link->dev,
2160                               "ray_cs Unexpected interrupt for RCS 0x%x cmd = 0x%x\n",
2161                               rcsindex,
2162                               (unsigned int)readb(&prcs->interrupt_id));
2163                         break;
2164                 }
2165                 writeb(CCS_BUFFER_FREE, &prcs->buffer_status);
2166         }
2167         clear_interrupt(local);
2168         return IRQ_HANDLED;
2169 } /* ray_interrupt */
2170
2171 /*===========================================================================*/
2172 static void ray_rx(struct net_device *dev, ray_dev_t *local,
2173                    struct rcs __iomem *prcs)
2174 {
2175         int rx_len;
2176         unsigned int pkt_addr;
2177         void __iomem *pmsg;
2178         pr_debug("ray_rx process rx packet\n");
2179
2180         /* Calculate address of packet within Rx buffer */
2181         pkt_addr = ((readb(&prcs->var.rx_packet.rx_data_ptr[0]) << 8)
2182                     + readb(&prcs->var.rx_packet.rx_data_ptr[1])) & RX_BUFF_END;
2183         /* Length of first packet fragment */
2184         rx_len = (readb(&prcs->var.rx_packet.rx_data_length[0]) << 8)
2185             + readb(&prcs->var.rx_packet.rx_data_length[1]);
2186
2187         local->last_rsl = readb(&prcs->var.rx_packet.rx_sig_lev);
2188         pmsg = local->rmem + pkt_addr;
2189         switch (readb(pmsg)) {
2190         case DATA_TYPE:
2191                 pr_debug("ray_rx data type\n");
2192                 rx_data(dev, prcs, pkt_addr, rx_len);
2193                 break;
2194         case AUTHENTIC_TYPE:
2195                 pr_debug("ray_rx authentic type\n");
2196                 if (sniffer)
2197                         rx_data(dev, prcs, pkt_addr, rx_len);
2198                 else
2199                         rx_authenticate(local, prcs, pkt_addr, rx_len);
2200                 break;
2201         case DEAUTHENTIC_TYPE:
2202                 pr_debug("ray_rx deauth type\n");
2203                 if (sniffer)
2204                         rx_data(dev, prcs, pkt_addr, rx_len);
2205                 else
2206                         rx_deauthenticate(local, prcs, pkt_addr, rx_len);
2207                 break;
2208         case NULL_MSG_TYPE:
2209                 pr_debug("ray_cs rx NULL msg\n");
2210                 break;
2211         case BEACON_TYPE:
2212                 pr_debug("ray_rx beacon type\n");
2213                 if (sniffer)
2214                         rx_data(dev, prcs, pkt_addr, rx_len);
2215
2216                 copy_from_rx_buff(local, (UCHAR *) &local->last_bcn, pkt_addr,
2217                                   rx_len < sizeof(struct beacon_rx) ?
2218                                   rx_len : sizeof(struct beacon_rx));
2219
2220                 local->beacon_rxed = 1;
2221                 /* Get the statistics so the card counters never overflow */
2222                 ray_get_stats(dev);
2223                 break;
2224         default:
2225                 pr_debug("ray_cs unknown pkt type %2x\n",
2226                       (unsigned int)readb(pmsg));
2227                 break;
2228         }
2229
2230 } /* end ray_rx */
2231
2232 /*===========================================================================*/
2233 static void rx_data(struct net_device *dev, struct rcs __iomem *prcs,
2234                     unsigned int pkt_addr, int rx_len)
2235 {
2236         struct sk_buff *skb = NULL;
2237         struct rcs __iomem *prcslink = prcs;
2238         ray_dev_t *local = netdev_priv(dev);
2239         UCHAR *rx_ptr;
2240         int total_len;
2241         int tmp;
2242 #ifdef WIRELESS_SPY
2243         int siglev = local->last_rsl;
2244         u_char linksrcaddr[ETH_ALEN];   /* Other end of the wireless link */
2245 #endif
2246
2247         if (!sniffer) {
2248                 if (translate) {
2249 /* TBD length needs fixing for translated header */
2250                         if (rx_len < (ETH_HLEN + RX_MAC_HEADER_LENGTH) ||
2251                             rx_len >
2252                             (dev->mtu + RX_MAC_HEADER_LENGTH + ETH_HLEN +
2253                              FCS_LEN)) {
2254                                 pr_debug(
2255                                       "ray_cs invalid packet length %d received \n",
2256                                       rx_len);
2257                                 return;
2258                         }
2259                 } else { /* encapsulated ethernet */
2260
2261                         if (rx_len < (ETH_HLEN + RX_MAC_HEADER_LENGTH) ||
2262                             rx_len >
2263                             (dev->mtu + RX_MAC_HEADER_LENGTH + ETH_HLEN +
2264                              FCS_LEN)) {
2265                                 pr_debug(
2266                                       "ray_cs invalid packet length %d received \n",
2267                                       rx_len);
2268                                 return;
2269                         }
2270                 }
2271         }
2272         pr_debug("ray_cs rx_data packet\n");
2273         /* If fragmented packet, verify sizes of fragments add up */
2274         if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF) {
2275                 pr_debug("ray_cs rx'ed fragment\n");
2276                 tmp = (readb(&prcs->var.rx_packet.totalpacketlength[0]) << 8)
2277                     + readb(&prcs->var.rx_packet.totalpacketlength[1]);
2278                 total_len = tmp;
2279                 prcslink = prcs;
2280                 do {
2281                         tmp -=
2282                             (readb(&prcslink->var.rx_packet.rx_data_length[0])
2283                              << 8)
2284                             + readb(&prcslink->var.rx_packet.rx_data_length[1]);
2285                         if (readb(&prcslink->var.rx_packet.next_frag_rcs_index)
2286                             == 0xFF || tmp < 0)
2287                                 break;
2288                         prcslink = rcs_base(local)
2289                             + readb(&prcslink->link_field);
2290                 } while (1);
2291
2292                 if (tmp < 0) {
2293                         pr_debug(
2294                               "ray_cs rx_data fragment lengths don't add up\n");
2295                         local->stats.rx_dropped++;
2296                         release_frag_chain(local, prcs);
2297                         return;
2298                 }
2299         } else { /* Single unfragmented packet */
2300                 total_len = rx_len;
2301         }
2302
2303         skb = dev_alloc_skb(total_len + 5);
2304         if (skb == NULL) {
2305                 pr_debug("ray_cs rx_data could not allocate skb\n");
2306                 local->stats.rx_dropped++;
2307                 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF)
2308                         release_frag_chain(local, prcs);
2309                 return;
2310         }
2311         skb_reserve(skb, 2);    /* Align IP on 16 byte (TBD check this) */
2312
2313         pr_debug("ray_cs rx_data total_len = %x, rx_len = %x\n", total_len,
2314               rx_len);
2315
2316 /************************/
2317         /* Reserve enough room for the whole damn packet. */
2318         rx_ptr = skb_put(skb, total_len);
2319         /* Copy the whole packet to sk_buff */
2320         rx_ptr +=
2321             copy_from_rx_buff(local, rx_ptr, pkt_addr & RX_BUFF_END, rx_len);
2322         /* Get source address */
2323 #ifdef WIRELESS_SPY
2324         skb_copy_from_linear_data_offset(skb,
2325                                          offsetof(struct mac_header, addr_2),
2326                                          linksrcaddr, ETH_ALEN);
2327 #endif
2328         /* Now, deal with encapsulation/translation/sniffer */
2329         if (!sniffer) {
2330                 if (!translate) {
2331                         /* Encapsulated ethernet, so just lop off 802.11 MAC header */
2332 /* TBD reserve            skb_reserve( skb, RX_MAC_HEADER_LENGTH); */
2333                         skb_pull(skb, RX_MAC_HEADER_LENGTH);
2334                 } else {
2335                         /* Do translation */
2336                         untranslate(local, skb, total_len);
2337                 }
2338         } else { /* sniffer mode, so just pass whole packet */
2339         };
2340
2341 /************************/
2342         /* Now pick up the rest of the fragments if any */
2343         tmp = 17;
2344         if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF) {
2345                 prcslink = prcs;
2346                 pr_debug("ray_cs rx_data in fragment loop\n");
2347                 do {
2348                         prcslink = rcs_base(local)
2349                             +
2350                             readb(&prcslink->var.rx_packet.next_frag_rcs_index);
2351                         rx_len =
2352                             ((readb(&prcslink->var.rx_packet.rx_data_length[0])
2353                               << 8)
2354                              +
2355                              readb(&prcslink->var.rx_packet.rx_data_length[1]))
2356                             & RX_BUFF_END;
2357                         pkt_addr =
2358                             ((readb(&prcslink->var.rx_packet.rx_data_ptr[0]) <<
2359                               8)
2360                              + readb(&prcslink->var.rx_packet.rx_data_ptr[1]))
2361                             & RX_BUFF_END;
2362
2363                         rx_ptr +=
2364                             copy_from_rx_buff(local, rx_ptr, pkt_addr, rx_len);
2365
2366                 } while (tmp-- &&
2367                          readb(&prcslink->var.rx_packet.next_frag_rcs_index) !=
2368                          0xFF);
2369                 release_frag_chain(local, prcs);
2370         }
2371
2372         skb->protocol = eth_type_trans(skb, dev);
2373         netif_rx(skb);
2374         local->stats.rx_packets++;
2375         local->stats.rx_bytes += total_len;
2376
2377         /* Gather signal strength per address */
2378 #ifdef WIRELESS_SPY
2379         /* For the Access Point or the node having started the ad-hoc net
2380          * note : ad-hoc work only in some specific configurations, but we
2381          * kludge in ray_get_wireless_stats... */
2382         if (!memcmp(linksrcaddr, local->bss_id, ETH_ALEN)) {
2383                 /* Update statistics */
2384                 /*local->wstats.qual.qual = none ? */
2385                 local->wstats.qual.level = siglev;
2386                 /*local->wstats.qual.noise = none ? */
2387                 local->wstats.qual.updated = 0x2;
2388         }
2389         /* Now, update the spy stuff */
2390         {
2391                 struct iw_quality wstats;
2392                 wstats.level = siglev;
2393                 /* wstats.noise = none ? */
2394                 /* wstats.qual = none ? */
2395                 wstats.updated = 0x2;
2396                 /* Update spy records */
2397                 wireless_spy_update(dev, linksrcaddr, &wstats);
2398         }
2399 #endif /* WIRELESS_SPY */
2400 } /* end rx_data */
2401
2402 /*===========================================================================*/
2403 static void untranslate(ray_dev_t *local, struct sk_buff *skb, int len)
2404 {
2405         snaphdr_t *psnap = (snaphdr_t *) (skb->data + RX_MAC_HEADER_LENGTH);
2406         struct ieee80211_hdr *pmac = (struct ieee80211_hdr *)skb->data;
2407         __be16 type = *(__be16 *) psnap->ethertype;
2408         int delta;
2409         struct ethhdr *peth;
2410         UCHAR srcaddr[ADDRLEN];
2411         UCHAR destaddr[ADDRLEN];
2412         static UCHAR org_bridge[3] = { 0, 0, 0xf8 };
2413         static UCHAR org_1042[3] = { 0, 0, 0 };
2414
2415         memcpy(destaddr, ieee80211_get_DA(pmac), ADDRLEN);
2416         memcpy(srcaddr, ieee80211_get_SA(pmac), ADDRLEN);
2417
2418 #if 0
2419         if {
2420                 print_hex_dump(KERN_DEBUG, "skb->data before untranslate: ",
2421                                DUMP_PREFIX_NONE, 16, 1,
2422                                skb->data, 64, true);
2423                 printk(KERN_DEBUG
2424                        "type = %08x, xsap = %02x%02x%02x, org = %02x02x02x\n",
2425                        ntohs(type), psnap->dsap, psnap->ssap, psnap->ctrl,
2426                        psnap->org[0], psnap->org[1], psnap->org[2]);
2427                 printk(KERN_DEBUG "untranslate skb->data = %p\n", skb->data);
2428         }
2429 #endif
2430
2431         if (psnap->dsap != 0xaa || psnap->ssap != 0xaa || psnap->ctrl != 3) {
2432                 /* not a snap type so leave it alone */
2433                 pr_debug("ray_cs untranslate NOT SNAP %02x %02x %02x\n",
2434                       psnap->dsap, psnap->ssap, psnap->ctrl);
2435
2436                 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
2437                 peth = (struct ethhdr *)(skb->data + delta);
2438                 peth->h_proto = htons(len - RX_MAC_HEADER_LENGTH);
2439         } else { /* Its a SNAP */
2440                 if (memcmp(psnap->org, org_bridge, 3) == 0) {
2441                 /* EtherII and nuke the LLC */
2442                         pr_debug("ray_cs untranslate Bridge encap\n");
2443                         delta = RX_MAC_HEADER_LENGTH
2444                             + sizeof(struct snaphdr_t) - ETH_HLEN;
2445                         peth = (struct ethhdr *)(skb->data + delta);
2446                         peth->h_proto = type;
2447                 } else if (memcmp(psnap->org, org_1042, 3) == 0) {
2448                         switch (ntohs(type)) {
2449                         case ETH_P_IPX:
2450                         case ETH_P_AARP:
2451                                 pr_debug("ray_cs untranslate RFC IPX/AARP\n");
2452                                 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
2453                                 peth = (struct ethhdr *)(skb->data + delta);
2454                                 peth->h_proto =
2455                                     htons(len - RX_MAC_HEADER_LENGTH);
2456                                 break;
2457                         default:
2458                                 pr_debug("ray_cs untranslate RFC default\n");
2459                                 delta = RX_MAC_HEADER_LENGTH +
2460                                     sizeof(struct snaphdr_t) - ETH_HLEN;
2461                                 peth = (struct ethhdr *)(skb->data + delta);
2462                                 peth->h_proto = type;
2463                                 break;
2464                         }
2465                 } else {
2466                         printk("ray_cs untranslate very confused by packet\n");
2467                         delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
2468                         peth = (struct ethhdr *)(skb->data + delta);
2469                         peth->h_proto = type;
2470                 }
2471         }
2472 /* TBD reserve  skb_reserve(skb, delta); */
2473         skb_pull(skb, delta);
2474         pr_debug("untranslate after skb_pull(%d), skb->data = %p\n", delta,
2475               skb->data);
2476         memcpy(peth->h_dest, destaddr, ADDRLEN);
2477         memcpy(peth->h_source, srcaddr, ADDRLEN);
2478 #if 0
2479         {
2480                 int i;
2481                 printk(KERN_DEBUG "skb->data after untranslate:");
2482                 for (i = 0; i < 64; i++)
2483                         printk("%02x ", skb->data[i]);
2484                 printk("\n");
2485         }
2486 #endif
2487 } /* end untranslate */
2488
2489 /*===========================================================================*/
2490 /* Copy data from circular receive buffer to PC memory.
2491  * dest     = destination address in PC memory
2492  * pkt_addr = source address in receive buffer
2493  * len      = length of packet to copy
2494  */
2495 static int copy_from_rx_buff(ray_dev_t *local, UCHAR *dest, int pkt_addr,
2496                              int length)
2497 {
2498         int wrap_bytes = (pkt_addr + length) - (RX_BUFF_END + 1);
2499         if (wrap_bytes <= 0) {
2500                 memcpy_fromio(dest, local->rmem + pkt_addr, length);
2501         } else { /* Packet wrapped in circular buffer */
2502
2503                 memcpy_fromio(dest, local->rmem + pkt_addr,
2504                               length - wrap_bytes);
2505                 memcpy_fromio(dest + length - wrap_bytes, local->rmem,
2506                               wrap_bytes);
2507         }
2508         return length;
2509 }
2510
2511 /*===========================================================================*/
2512 static void release_frag_chain(ray_dev_t *local, struct rcs __iomem *prcs)
2513 {
2514         struct rcs __iomem *prcslink = prcs;
2515         int tmp = 17;
2516         unsigned rcsindex = readb(&prcs->var.rx_packet.next_frag_rcs_index);
2517
2518         while (tmp--) {
2519                 writeb(CCS_BUFFER_FREE, &prcslink->buffer_status);
2520                 if (rcsindex >= (NUMBER_OF_CCS + NUMBER_OF_RCS)) {
2521                         pr_debug("ray_cs interrupt bad rcsindex = 0x%x\n",
2522                               rcsindex);
2523                         break;
2524                 }
2525                 prcslink = rcs_base(local) + rcsindex;
2526                 rcsindex = readb(&prcslink->var.rx_packet.next_frag_rcs_index);
2527         }
2528         writeb(CCS_BUFFER_FREE, &prcslink->buffer_status);
2529 }
2530
2531 /*===========================================================================*/
2532 static void authenticate(ray_dev_t *local)
2533 {
2534         struct pcmcia_device *link = local->finder;
2535         dev_dbg(&link->dev, "ray_cs Starting authentication.\n");
2536         if (!(pcmcia_dev_present(link))) {
2537                 dev_dbg(&link->dev, "ray_cs authenticate - device not present\n");
2538                 return;
2539         }
2540
2541         del_timer(&local->timer);
2542         if (build_auth_frame(local, local->bss_id, OPEN_AUTH_REQUEST)) {
2543                 local->timer.function = &join_net;
2544         } else {
2545                 local->timer.function = &authenticate_timeout;
2546         }
2547         local->timer.expires = jiffies + HZ * 2;
2548         local->timer.data = (long)local;
2549         add_timer(&local->timer);
2550         local->authentication_state = AWAITING_RESPONSE;
2551 } /* end authenticate */
2552
2553 /*===========================================================================*/
2554 static void rx_authenticate(ray_dev_t *local, struct rcs __iomem *prcs,
2555                             unsigned int pkt_addr, int rx_len)
2556 {
2557         UCHAR buff[256];
2558         struct rx_msg *msg = (struct rx_msg *)buff;
2559
2560         del_timer(&local->timer);
2561
2562         copy_from_rx_buff(local, buff, pkt_addr, rx_len & 0xff);
2563         /* if we are trying to get authenticated */
2564         if (local->sparm.b4.a_network_type == ADHOC) {
2565                 pr_debug("ray_cs rx_auth var= %02x %02x %02x %02x %02x %02x\n",
2566                       msg->var[0], msg->var[1], msg->var[2], msg->var[3],
2567                       msg->var[4], msg->var[5]);
2568                 if (msg->var[2] == 1) {
2569                         pr_debug("ray_cs Sending authentication response.\n");
2570                         if (!build_auth_frame
2571                             (local, msg->mac.addr_2, OPEN_AUTH_RESPONSE)) {
2572                                 local->authentication_state = NEED_TO_AUTH;
2573                                 memcpy(local->auth_id, msg->mac.addr_2,
2574                                        ADDRLEN);
2575                         }
2576                 }
2577         } else { /* Infrastructure network */
2578
2579                 if (local->authentication_state == AWAITING_RESPONSE) {
2580                         /* Verify authentication sequence #2 and success */
2581                         if (msg->var[2] == 2) {
2582                                 if ((msg->var[3] | msg->var[4]) == 0) {
2583                                         pr_debug("Authentication successful\n");
2584                                         local->card_status = CARD_AUTH_COMPLETE;
2585                                         associate(local);
2586                                         local->authentication_state =
2587                                             AUTHENTICATED;
2588                                 } else {
2589                                         pr_debug("Authentication refused\n");
2590                                         local->card_status = CARD_AUTH_REFUSED;
2591                                         join_net((u_long) local);
2592                                         local->authentication_state =
2593                                             UNAUTHENTICATED;
2594                                 }
2595                         }
2596                 }
2597         }
2598
2599 } /* end rx_authenticate */
2600
2601 /*===========================================================================*/
2602 static void associate(ray_dev_t *local)
2603 {
2604         struct ccs __iomem *pccs;
2605         struct pcmcia_device *link = local->finder;
2606         struct net_device *dev = link->priv;
2607         int ccsindex;
2608         if (!(pcmcia_dev_present(link))) {
2609                 dev_dbg(&link->dev, "ray_cs associate - device not present\n");
2610                 return;
2611         }
2612         /* If no tx buffers available, return */
2613         if ((ccsindex = get_free_ccs(local)) < 0) {
2614 /* TBD should never be here but... what if we are? */
2615                 dev_dbg(&link->dev, "ray_cs associate - No free ccs\n");
2616                 return;
2617         }
2618         dev_dbg(&link->dev, "ray_cs Starting association with access point\n");
2619         pccs = ccs_base(local) + ccsindex;
2620         /* fill in the CCS */
2621         writeb(CCS_START_ASSOCIATION, &pccs->cmd);
2622         /* Interrupt the firmware to process the command */
2623         if (interrupt_ecf(local, ccsindex)) {
2624                 dev_dbg(&link->dev, "ray_cs associate failed - ECF not ready for intr\n");
2625                 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
2626
2627                 del_timer(&local->timer);
2628                 local->timer.expires = jiffies + HZ * 2;
2629                 local->timer.data = (long)local;
2630                 local->timer.function = &join_net;
2631                 add_timer(&local->timer);
2632                 local->card_status = CARD_ASSOC_FAILED;
2633                 return;
2634         }
2635         if (!sniffer)
2636                 netif_start_queue(dev);
2637
2638 } /* end associate */
2639
2640 /*===========================================================================*/
2641 static void rx_deauthenticate(ray_dev_t *local, struct rcs __iomem *prcs,
2642                               unsigned int pkt_addr, int rx_len)
2643 {
2644 /*  UCHAR buff[256];
2645     struct rx_msg *msg = (struct rx_msg *)buff;
2646 */
2647         pr_debug("Deauthentication frame received\n");
2648         local->authentication_state = UNAUTHENTICATED;
2649         /* Need to reauthenticate or rejoin depending on reason code */
2650 /*  copy_from_rx_buff(local, buff, pkt_addr, rx_len & 0xff);
2651  */
2652 }
2653
2654 /*===========================================================================*/
2655 static void clear_interrupt(ray_dev_t *local)
2656 {
2657         writeb(0, local->amem + CIS_OFFSET + HCS_INTR_OFFSET);
2658 }
2659
2660 /*===========================================================================*/
2661 #ifdef CONFIG_PROC_FS
2662 #define MAXDATA (PAGE_SIZE - 80)
2663
2664 static char *card_status[] = {
2665         "Card inserted - uninitialized",        /* 0 */
2666         "Card not downloaded",                  /* 1 */
2667         "Waiting for download parameters",      /* 2 */
2668         "Card doing acquisition",               /* 3 */
2669         "Acquisition complete",                 /* 4 */
2670         "Authentication complete",              /* 5 */
2671         "Association complete",                 /* 6 */
2672         "???", "???", "???", "???",             /* 7 8 9 10 undefined */
2673         "Card init error",                      /* 11 */
2674         "Download parameters error",            /* 12 */
2675         "???",                                  /* 13 */
2676         "Acquisition failed",                   /* 14 */
2677         "Authentication refused",               /* 15 */
2678         "Association failed"                    /* 16 */
2679 };
2680
2681 static char *nettype[] = { "Adhoc", "Infra " };
2682 static char *framing[] = { "Encapsulation", "Translation" }
2683
2684 ;
2685 /*===========================================================================*/
2686 static int ray_cs_proc_show(struct seq_file *m, void *v)
2687 {
2688 /* Print current values which are not available via other means
2689  * eg ifconfig
2690  */
2691         int i;
2692         struct pcmcia_device *link;
2693         struct net_device *dev;
2694         ray_dev_t *local;
2695         UCHAR *p;
2696         struct freq_hop_element *pfh;
2697         UCHAR c[33];
2698
2699         link = this_device;
2700         if (!link)
2701                 return 0;
2702         dev = (struct net_device *)link->priv;
2703         if (!dev)
2704                 return 0;
2705         local = netdev_priv(dev);
2706         if (!local)
2707                 return 0;
2708
2709         seq_puts(m, "Raylink Wireless LAN driver status\n");
2710         seq_printf(m, "%s\n", rcsid);
2711         /* build 4 does not report version, and field is 0x55 after memtest */
2712         seq_puts(m, "Firmware version     = ");
2713         if (local->fw_ver == 0x55)
2714                 seq_puts(m, "4 - Use dump_cis for more details\n");
2715         else
2716                 seq_printf(m, "%2d.%02d.%02d\n",
2717                            local->fw_ver, local->fw_bld, local->fw_var);
2718
2719         for (i = 0; i < 32; i++)
2720                 c[i] = local->sparm.b5.a_current_ess_id[i];
2721         c[32] = 0;
2722         seq_printf(m, "%s network ESSID = \"%s\"\n",
2723                    nettype[local->sparm.b5.a_network_type], c);
2724
2725         p = local->bss_id;
2726         seq_printf(m, "BSSID                = %pM\n", p);
2727
2728         seq_printf(m, "Country code         = %d\n",
2729                    local->sparm.b5.a_curr_country_code);
2730
2731         i = local->card_status;
2732         if (i < 0)
2733                 i = 10;
2734         if (i > 16)
2735                 i = 10;
2736         seq_printf(m, "Card status          = %s\n", card_status[i]);
2737
2738         seq_printf(m, "Framing mode         = %s\n", framing[translate]);
2739
2740         seq_printf(m, "Last pkt signal lvl  = %d\n", local->last_rsl);
2741
2742         if (local->beacon_rxed) {
2743                 /* Pull some fields out of last beacon received */
2744                 seq_printf(m, "Beacon Interval      = %d Kus\n",
2745                            local->last_bcn.beacon_intvl[0]
2746                            + 256 * local->last_bcn.beacon_intvl[1]);
2747
2748                 p = local->last_bcn.elements;
2749                 if (p[0] == C_ESSID_ELEMENT_ID)
2750                         p += p[1] + 2;
2751                 else {
2752                         seq_printf(m,
2753                                    "Parse beacon failed at essid element id = %d\n",
2754                                    p[0]);
2755                         return 0;
2756                 }
2757
2758                 if (p[0] == C_SUPPORTED_RATES_ELEMENT_ID) {
2759                         seq_puts(m, "Supported rate codes = ");
2760                         for (i = 2; i < p[1] + 2; i++)
2761                                 seq_printf(m, "0x%02x ", p[i]);
2762                         seq_putc(m, '\n');
2763                         p += p[1] + 2;
2764                 } else {
2765                         seq_puts(m, "Parse beacon failed at rates element\n");
2766                         return 0;
2767                 }
2768
2769                 if (p[0] == C_FH_PARAM_SET_ELEMENT_ID) {
2770                         pfh = (struct freq_hop_element *)p;
2771                         seq_printf(m, "Hop dwell            = %d Kus\n",
2772                                    pfh->dwell_time[0] +
2773                                    256 * pfh->dwell_time[1]);
2774                         seq_printf(m, "Hop set              = %d \n",
2775                                    pfh->hop_set);
2776                         seq_printf(m, "Hop pattern          = %d \n",
2777                                    pfh->hop_pattern);
2778                         seq_printf(m, "Hop index            = %d \n",
2779                                    pfh->hop_index);
2780                         p += p[1] + 2;
2781                 } else {
2782                         seq_puts(m,
2783                                  "Parse beacon failed at FH param element\n");
2784                         return 0;
2785                 }
2786         } else {
2787                 seq_puts(m, "No beacons received\n");
2788         }
2789         return 0;
2790 }
2791
2792 static int ray_cs_proc_open(struct inode *inode, struct file *file)
2793 {
2794         return single_open(file, ray_cs_proc_show, NULL);
2795 }
2796
2797 static const struct file_operations ray_cs_proc_fops = {
2798         .owner = THIS_MODULE,
2799         .open = ray_cs_proc_open,
2800         .read = seq_read,
2801         .llseek = seq_lseek,
2802         .release = single_release,
2803 };
2804 #endif
2805 /*===========================================================================*/
2806 static int build_auth_frame(ray_dev_t *local, UCHAR *dest, int auth_type)
2807 {
2808         int addr;
2809         struct ccs __iomem *pccs;
2810         struct tx_msg __iomem *ptx;
2811         int ccsindex;
2812
2813         /* If no tx buffers available, return */
2814         if ((ccsindex = get_free_tx_ccs(local)) < 0) {
2815                 pr_debug("ray_cs send authenticate - No free tx ccs\n");
2816                 return -1;
2817         }
2818
2819         pccs = ccs_base(local) + ccsindex;
2820
2821         /* Address in card space */
2822         addr = TX_BUF_BASE + (ccsindex << 11);
2823         /* fill in the CCS */
2824         writeb(CCS_TX_REQUEST, &pccs->cmd);
2825         writeb(addr >> 8, pccs->var.tx_request.tx_data_ptr);
2826         writeb(0x20, pccs->var.tx_request.tx_data_ptr + 1);
2827         writeb(TX_AUTHENTICATE_LENGTH_MSB, pccs->var.tx_request.tx_data_length);
2828         writeb(TX_AUTHENTICATE_LENGTH_LSB,
2829                pccs->var.tx_request.tx_data_length + 1);
2830         writeb(0, &pccs->var.tx_request.pow_sav_mode);
2831
2832         ptx = local->sram + addr;
2833         /* fill in the mac header */
2834         writeb(PROTOCOL_VER | AUTHENTIC_TYPE, &ptx->mac.frame_ctl_1);
2835         writeb(0, &ptx->mac.frame_ctl_2);
2836
2837         memcpy_toio(ptx->mac.addr_1, dest, ADDRLEN);
2838         memcpy_toio(ptx->mac.addr_2, local->sparm.b4.a_mac_addr, ADDRLEN);
2839         memcpy_toio(ptx->mac.addr_3, local->bss_id, ADDRLEN);
2840
2841         /* Fill in msg body with protocol 00 00, sequence 01 00 ,status 00 00 */
2842         memset_io(ptx->var, 0, 6);
2843         writeb(auth_type & 0xff, ptx->var + 2);
2844
2845         /* Interrupt the firmware to process the command */
2846         if (interrupt_ecf(local, ccsindex)) {
2847                 pr_debug(
2848                       "ray_cs send authentication request failed - ECF not ready for intr\n");
2849                 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
2850                 return -1;
2851         }
2852         return 0;
2853 } /* End build_auth_frame */
2854
2855 /*===========================================================================*/
2856 #ifdef CONFIG_PROC_FS
2857 static ssize_t ray_cs_essid_proc_write(struct file *file,
2858                 const char __user *buffer, size_t count, loff_t *pos)
2859 {
2860         static char proc_essid[33];
2861         unsigned int len = count;
2862
2863         if (len > 32)
2864                 len = 32;
2865         memset(proc_essid, 0, 33);
2866         if (copy_from_user(proc_essid, buffer, len))
2867                 return -EFAULT;
2868         essid = proc_essid;
2869         return count;
2870 }
2871
2872 static const struct file_operations ray_cs_essid_proc_fops = {
2873         .owner          = THIS_MODULE,
2874         .write          = ray_cs_essid_proc_write,
2875 };
2876
2877 static ssize_t int_proc_write(struct file *file, const char __user *buffer,
2878                               size_t count, loff_t *pos)
2879 {
2880         static char proc_number[10];
2881         char *p;
2882         int nr, len;
2883
2884         if (!count)
2885                 return 0;
2886
2887         if (count > 9)
2888                 return -EINVAL;
2889         if (copy_from_user(proc_number, buffer, count))
2890                 return -EFAULT;
2891         p = proc_number;
2892         nr = 0;
2893         len = count;
2894         do {
2895                 unsigned int c = *p - '0';
2896                 if (c > 9)
2897                         return -EINVAL;
2898                 nr = nr * 10 + c;
2899                 p++;
2900         } while (--len);
2901         *(int *)PDE(file->f_path.dentry->d_inode)->data = nr;
2902         return count;
2903 }
2904
2905 static const struct file_operations int_proc_fops = {
2906         .owner          = THIS_MODULE,
2907         .write          = int_proc_write,
2908 };
2909 #endif
2910
2911 static struct pcmcia_device_id ray_ids[] = {
2912         PCMCIA_DEVICE_MANF_CARD(0x01a6, 0x0000),
2913         PCMCIA_DEVICE_NULL,
2914 };
2915
2916 MODULE_DEVICE_TABLE(pcmcia, ray_ids);
2917
2918 static struct pcmcia_driver ray_driver = {
2919         .owner = THIS_MODULE,
2920         .drv = {
2921                 .name = "ray_cs",
2922                 },
2923         .probe = ray_probe,
2924         .remove = ray_detach,
2925         .id_table = ray_ids,
2926         .suspend = ray_suspend,
2927         .resume = ray_resume,
2928 };
2929
2930 static int __init init_ray_cs(void)
2931 {
2932         int rc;
2933
2934         pr_debug("%s\n", rcsid);
2935         rc = pcmcia_register_driver(&ray_driver);
2936         pr_debug("raylink init_module register_pcmcia_driver returns 0x%x\n",
2937               rc);
2938
2939 #ifdef CONFIG_PROC_FS
2940         proc_mkdir("driver/ray_cs", NULL);
2941
2942         proc_create("driver/ray_cs/ray_cs", 0, NULL, &ray_cs_proc_fops);
2943         proc_create("driver/ray_cs/essid", S_IWUSR, NULL, &ray_cs_essid_proc_fops);
2944         proc_create_data("driver/ray_cs/net_type", S_IWUSR, NULL, &int_proc_fops, &net_type);
2945         proc_create_data("driver/ray_cs/translate", S_IWUSR, NULL, &int_proc_fops, &translate);
2946 #endif
2947         if (translate != 0)
2948                 translate = 1;
2949         return 0;
2950 } /* init_ray_cs */
2951
2952 /*===========================================================================*/
2953
2954 static void __exit exit_ray_cs(void)
2955 {
2956         pr_debug("ray_cs: cleanup_module\n");
2957
2958 #ifdef CONFIG_PROC_FS
2959         remove_proc_entry("driver/ray_cs/ray_cs", NULL);
2960         remove_proc_entry("driver/ray_cs/essid", NULL);
2961         remove_proc_entry("driver/ray_cs/net_type", NULL);
2962         remove_proc_entry("driver/ray_cs/translate", NULL);
2963         remove_proc_entry("driver/ray_cs", NULL);
2964 #endif
2965
2966         pcmcia_unregister_driver(&ray_driver);
2967 } /* exit_ray_cs */
2968
2969 module_init(init_ray_cs);
2970 module_exit(exit_ray_cs);
2971
2972 /*===========================================================================*/